/* roulang page: index */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.4rem;
        }
        p {
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }
        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }
        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .nav-search .search-icon {
            color: var(--text-light);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .btn-nav {
            padding: 9px 20px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }
        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }
        .btn-nav-primary {
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
        }
        .btn-nav-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            flex-shrink: 0;
        }
        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile Nav */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .mobile-nav-overlay.show {
            display: block;
            opacity: 1;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            right: 0;
            width: 300px;
            max-width: 85vw;
            bottom: 0;
            background: var(--bg-white);
            z-index: 1000;
            padding: 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform var(--transition);
            box-shadow: var(--shadow-lg);
        }
        .mobile-nav-panel.show {
            transform: translateX(0);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            border-radius: var(--radius);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition-fast);
            margin-bottom: 4px;
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--border-light);
        }

        /* Section Base */
        section {
            padding: var(--section-gap) 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent);
            margin-bottom: 12px;
            background: var(--accent-light);
            padding: 5px 14px;
            border-radius: 20px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            color: var(--text);
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-desc {
            margin: 0 auto;
        }

        /* Hero - Icon Matrix */
        .hero-section {
            padding: 60px 0 80px;
            background: var(--bg-white);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 168, 23, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-left .hero-status-bar {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #f5f5f0;
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 20px;
            border: 1px solid var(--border-light);
        }
        .hero-left .hero-status-dot {
            width: 8px;
            height: 8px;
            background: #22c55e;
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(34, 197, 94, 0);
            }
        }
        .hero-left h1 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 16px;
            color: var(--text);
        }
        .hero-left h1 .highlight {
            color: var(--accent);
            position: relative;
        }
        .hero-left .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 500px;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 25px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--accent);
            color: #1a1a1a;
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 23, 0.4);
            color: #1a1a1a;
        }
        .btn-outline {
            border: 2px solid var(--border);
            color: var(--text);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
            color: var(--text);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 20px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 28px;
        }
        .hero-right {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .icon-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            width: 100%;
            max-width: 420px;
        }
        .icon-matrix-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition);
            cursor: default;
            aspect-ratio: 1 / 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .icon-matrix-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            background: #fff;
        }
        .icon-matrix-item .matrix-icon {
            font-size: 2rem;
            line-height: 1;
        }
        .icon-matrix-item .matrix-label {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.3;
        }
        .icon-matrix-item .matrix-count {
            font-size: 0.7rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* Collection Directory */
        .collection-section {
            background: var(--bg);
        }
        .collection-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .collection-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .collection-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .collection-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #f0f0eb;
        }
        .collection-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .collection-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .collection-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .collection-card .card-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .collection-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }
        .collection-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .collection-card .card-link {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
            transition: color var(--transition-fast);
        }
        .collection-card:hover .card-link {
            color: var(--accent);
        }

        /* Recommend Section */
        .recommend-section {
            background: var(--bg-white);
        }
        .recommend-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding-bottom: 8px;
        }
        .recommend-scroll::-webkit-scrollbar {
            display: none;
        }
        .recommend-item {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .recommend-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .recommend-item .rec-img {
            height: 160px;
            background: #e8e8e3;
            overflow: hidden;
        }
        .recommend-item .rec-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .recommend-item:hover .rec-img img {
            transform: scale(1.05);
        }
        .recommend-item .rec-body {
            padding: 16px;
        }
        .recommend-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .recommend-item .rec-meta {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 80px 0;
        }
        .brand-intro-section .section-title {
            color: #fff;
        }
        .brand-intro-section .section-desc {
            color: var(--text-on-dark-secondary);
        }
        .brand-intro-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .brand-intro-text {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-on-dark-secondary);
        }
        .brand-intro-text strong {
            color: #fff;
            font-weight: 700;
        }
        .brand-intro-visual {
            background: var(--bg-dark-secondary);
            border-radius: var(--radius-xl);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 280px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .brand-intro-visual .big-icon {
            font-size: 6rem;
            line-height: 1;
            opacity: 0.9;
        }

        /* Data Metrics */
        .metrics-section {
            background: var(--bg);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .metric-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text);
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .metric-card .metric-value .accent-num {
            color: var(--accent);
        }
        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* News Section */
        .news-section {
            background: var(--bg-white);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .news-item:hover {
            background: #fafaf9;
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }
        .news-item .news-date {
            font-size: 0.78rem;
            color: var(--text-light);
            white-space: nowrap;
            font-weight: 500;
            min-width: 80px;
            padding-top: 2px;
        }
        .news-item .news-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-item .news-content p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .news-item .news-content .news-link {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .news-item .news-content .news-link:hover {
            color: var(--accent-hover);
        }
        .news-sidebar {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            height: fit-content;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        .news-sidebar h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .news-sidebar .hot-item {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .news-sidebar .hot-item:hover {
            color: var(--accent);
        }
        .news-sidebar .hot-item:last-child {
            border-bottom: none;
        }
        .news-sidebar .hot-rank {
            display: inline-block;
            width: 22px;
            height: 22px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 50%;
            text-align: center;
            line-height: 22px;
            font-size: 0.7rem;
            font-weight: 800;
            margin-right: 8px;
        }

        /* Bookmark Share */
        .bookmark-section {
            background: var(--bg);
        }
        .bookmark-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .bookmark-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
        }
        .bookmark-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .bookmark-card .bm-icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
            display: block;
        }
        .bookmark-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .bookmark-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .bookmark-card .bm-actions {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin-top: 14px;
        }
        .btn-bm {
            padding: 7px 16px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            background: transparent;
            color: var(--text);
        }
        .btn-bm:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #1a1a1a;
        }

        /* Process Steps */
        .process-section {
            background: var(--bg-white);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
        }
        .process-step .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 900;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.3);
        }
        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Reviews */
        .reviews-section {
            background: var(--bg);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .review-card .review-stars {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .review-card .review-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            font-style: italic;
        }
        .review-card .review-author {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text);
        }
        .review-card .review-role {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        /* Featured */
        .featured-section {
            background: var(--bg-white);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .featured-card .feat-img {
            height: 200px;
            overflow: hidden;
            background: #e8e8e3;
        }
        .featured-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .featured-card:hover .feat-img img {
            transform: scale(1.05);
        }
        .featured-card .feat-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .featured-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
        }
        .featured-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: #fafaf9;
        }
        .faq-question .faq-arrow {
            transition: transform var(--transition);
            font-size: 0.7rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            padding: 0 24px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* Partners */
        .partners-section {
            background: var(--bg-white);
        }
        .partners-scroll {
            display: flex;
            gap: 32px;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            opacity: 0.7;
        }
        .partner-item {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            cursor: default;
            padding: 12px 20px;
            border-radius: var(--radius);
        }
        .partner-item:hover {
            color: var(--text);
            background: var(--border-light);
        }

        /* CTA */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            text-align: center;
            padding: 80px 0;
        }
        .cta-section .section-title {
            color: #fff;
            font-size: 2.2rem;
        }
        .cta-section .section-desc {
            color: var(--text-on-dark-secondary);
            margin: 0 auto 32px;
            max-width: 560px;
        }
        .cta-section .btn-primary {
            font-size: 1rem;
            padding: 16px 40px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 32px;
            color: var(--text-on-dark-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: var(--text-on-dark-secondary);
        }
        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 0.82rem;
            color: var(--text-on-dark-secondary);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: var(--text-on-dark-secondary);
        }
        .footer-bottom a {
            color: var(--text-on-dark-secondary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-left h1 {
                font-size: 2.2rem;
            }
            .icon-matrix {
                max-width: 360px;
                margin: 0 auto;
            }
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
            .bookmark-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .brand-intro-content {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mobile-nav-panel {
                display: block;
            }
            .mobile-nav-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-nav-overlay.show {
                pointer-events: auto;
            }
            section {
                padding: var(--section-gap-sm) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .hero-left h1 {
                font-size: 1.7rem;
            }
            .hero-left .hero-subtitle {
                font-size: 0.9rem;
            }
            .icon-matrix {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
                max-width: 100%;
            }
            .icon-matrix-item {
                padding: 14px 8px;
                border-radius: var(--radius);
            }
            .icon-matrix-item .matrix-icon {
                font-size: 1.5rem;
            }
            .icon-matrix-item .matrix-label {
                font-size: 0.7rem;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card {
                padding: 20px 16px;
            }
            .metric-card .metric-value {
                font-size: 1.8rem;
            }
            .bookmark-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .footer-legal {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.85rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .recommend-item {
                flex: 0 0 220px;
            }
            .news-item {
                flex-direction: column;
                gap: 4px;
            }
            .news-item .news-date {
                min-width: auto;
            }
        }
        @media (max-width: 520px) {
            .icon-matrix {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .icon-matrix-item {
                padding: 10px 6px;
                border-radius: var(--radius-sm);
            }
            .icon-matrix-item .matrix-icon {
                font-size: 1.3rem;
            }
            .icon-matrix-item .matrix-label {
                font-size: 0.65rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .hero-left h1 {
                font-size: 1.5rem;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }

        .nav-search input::placeholder {
            color: var(--text-light);
        }

        .search-icon {
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .btn-nav {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }

        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }

        .btn-nav-primary {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(232, 168, 23, 0.3);
        }

        .btn-nav-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.4);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero Section - 矮横幅 */
        .hero-banner {
            position: relative;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 40px 0;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }

        .hero-banner .container {
            display: flex;
            align-items: center;
            gap: 48px;
            position: relative;
            z-index: 2;
        }

        .hero-banner-text {
            flex: 1;
            max-width: 600px;
        }

        .hero-banner-text .hero-badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-hover);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .hero-banner-text h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .hero-banner-text .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-banner-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.3);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 24px rgba(232, 168, 23, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            border: 2px solid var(--border);
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }

        .btn-secondary:hover {
            border-color: var(--text);
            background: var(--border-light);
            color: var(--text);
        }

        .hero-banner-visual {
            flex: 0 0 420px;
            position: relative;
        }

        .hero-banner-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }

        .hero-banner-visual .visual-badge {
            position: absolute;
            bottom: -16px;
            right: -16px;
            background: var(--bg-dark);
            color: #fff;
            padding: 12px 20px;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .visual-badge .badge-dot {
            width: 10px;
            height: 10px;
            background: #4caf50;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(76, 175, 80, 0);
            }
        }

        /* Section共通 */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-hover);
            margin-bottom: 8px;
            display: block;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 640px;
        }

        /* 赛事分类标签条 */
        .category-strip {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 16px 0;
            position: sticky;
            top: var(--nav-height);
            z-index: 99;
        }

        .category-strip .container {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            flex-wrap: nowrap;
            align-items: center;
        }

        .category-strip .container::-webkit-scrollbar {
            display: none;
        }

        .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition-fast);
            background: var(--border-light);
            color: var(--text-secondary);
            cursor: pointer;
            flex-shrink: 0;
        }

        .cat-tag:hover {
            background: var(--border);
            color: var(--text);
        }

        .cat-tag.active-tag {
            background: var(--text);
            color: #fff;
            font-weight: 700;
        }

        .cat-tag .tag-icon {
            font-size: 1.1rem;
        }

        /* 热门赛事 - 左右布局 */
        .featured-event-row {
            display: flex;
            gap: 40px;
            align-items: stretch;
        }

        .featured-event-main {
            flex: 0 0 55%;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .featured-event-main:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .featured-event-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
            min-height: 340px;
        }

        .featured-event-main .event-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
            padding: 40px 28px 24px;
            color: #fff;
        }

        .event-overlay .event-status {
            display: inline-block;
            background: #e53935;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .event-overlay h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 4px;
            line-height: 1.3;
        }

        .event-overlay .event-meta {
            font-size: 0.85rem;
            opacity: 0.85;
        }

        .featured-event-list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .event-list-item {
            display: flex;
            gap: 16px;
            padding: 16px;
            border-radius: var(--radius);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            align-items: center;
            cursor: pointer;
        }

        .event-list-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .event-list-item img {
            width: 80px;
            height: 56px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .event-list-item .event-info {
            flex: 1;
            min-width: 0;
        }

        .event-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .event-info .event-detail {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .event-list-item .event-arrow {
            font-size: 1.2rem;
            color: var(--text-light);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .event-list-item:hover .event-arrow {
            color: var(--accent);
            transform: translateX(3px);
        }

        /* 卖点三连 */
        .selling-points {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .selling-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .selling-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-4px);
        }

        .selling-card .selling-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            background: var(--accent-light);
            flex-shrink: 0;
        }

        .selling-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .selling-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .selling-card .selling-number {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--border-light);
            line-height: 1;
            pointer-events: none;
        }

        /* 场景展示 */
        .scene-showcase {
            display: flex;
            gap: 40px;
            align-items: center;
        }

        .scene-showcase.reverse {
            flex-direction: row-reverse;
        }

        .scene-image {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .scene-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .scene-content {
            flex: 1;
        }

        .scene-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .scene-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .scene-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .scene-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text);
            font-weight: 500;
        }

        .scene-features li .check-icon {
            width: 22px;
            height: 22px;
            background: #e8f5e9;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #2e7d32;
            flex-shrink: 0;
        }

        /* 数据统计 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--text);
            letter-spacing: -0.03em;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-card .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-hover);
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* 时间线 */
        .timeline-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: var(--section-gap) 0;
        }

        .timeline-section .section-title {
            color: #fff;
        }

        .timeline-section .section-desc {
            color: var(--text-on-dark-secondary);
        }

        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 32px;
            position: relative;
            padding-left: 32px;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            padding: 20px 0 20px 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-fast);
        }

        .timeline-item:last-child {
            border-bottom: none;
        }

        .timeline-item:hover {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 28px;
            width: 12px;
            height: 12px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid var(--bg-dark);
            box-shadow: 0 0 0 3px rgba(232, 168, 23, 0.3);
        }

        .timeline-item .tl-date {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 0.9rem;
            color: var(--text-on-dark-secondary);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all var(--transition-fast);
            user-select: none;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: all var(--transition);
            flex-shrink: 0;
            font-weight: 700;
            color: var(--text-secondary);
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(232, 168, 23, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-on-dark-secondary);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 36px;
            border-radius: 30px;
        }

        /* 底部固定转化条 */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            padding: 14px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            transform: translateY(100%);
            transition: transform 0.4s ease;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
        }

        .sticky-cta-bar.visible {
            transform: translateY(0);
        }

        .sticky-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .sticky-cta-bar .sticky-cta-text {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            flex: 1;
            min-width: 0;
        }

        .sticky-cta-bar .sticky-cta-text span {
            color: var(--accent);
        }

        .sticky-cta-bar .btn-primary {
            flex-shrink: 0;
            font-size: 0.9rem;
            padding: 12px 24px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark-secondary);
            color: var(--text-on-dark);
            padding: 56px 0 28px;
            margin-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: #fff;
        }

        .footer-brand-desc {
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.6;
        }

        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            padding: 4px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-on-dark-secondary);
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-banner .container {
                flex-direction: column;
                gap: 28px;
            }
            .hero-banner-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .hero-banner-text h1 {
                font-size: 2rem;
            }
            .featured-event-row {
                flex-direction: column;
            }
            .featured-event-main {
                flex: 0 0 auto;
            }
            .selling-points {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-showcase {
                flex-direction: column;
                gap: 24px;
            }
            .scene-showcase.reverse {
                flex-direction: column;
            }
            .scene-image {
                flex: 0 0 auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .nav-search {
                display: none;
            }
            .nav-actions .btn-nav-outline {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 1000;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                border-radius: var(--radius-sm);
                padding: 12px 16px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-actions {
                margin-left: auto;
            }
            .nav-actions .btn-nav-outline {
                display: none;
            }
            .nav-actions .btn-nav-primary {
                font-size: 0.8rem;
                padding: 6px 14px;
            }
            .hero-banner {
                padding: 28px 0;
                min-height: auto;
            }
            .hero-banner-text h1 {
                font-size: 1.7rem;
            }
            .hero-banner-text .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-banner-visual {
                max-width: 100%;
            }
            .hero-banner-visual .visual-badge {
                bottom: -8px;
                right: -4px;
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .selling-points {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .sticky-cta-bar .sticky-cta-text {
                font-size: 0.85rem;
            }
            .sticky-cta-bar .btn-primary {
                font-size: 0.8rem;
                padding: 10px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-legal {
                justify-content: center;
                flex-wrap: wrap;
            }
            .category-strip {
                top: var(--nav-height);
            }
            .event-list-item img {
                width: 60px;
                height: 44px;
            }
            .featured-event-main img {
                min-height: 200px;
            }
            .timeline-list {
                padding-left: 20px;
            }
            .timeline-list::before {
                left: 8px;
            }
            .timeline-item {
                padding-left: 28px;
            }
            .timeline-item::before {
                left: -16px;
                width: 10px;
                height: 10px;
            }
        }

        @media (max-width: 520px) {
            .hero-banner-text h1 {
                font-size: 1.4rem;
            }
            .hero-banner-actions {
                flex-direction: column;
                gap: 8px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .selling-card {
                padding: 24px 20px;
            }
            .selling-card .selling-number {
                font-size: 2.5rem;
                top: 12px;
                right: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .category-strip .cat-tag {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .sticky-cta-bar {
                padding: 10px 0;
            }
            .sticky-cta-bar .sticky-cta-text {
                font-size: 0.75rem;
            }
            .sticky-cta-bar .btn-primary {
                font-size: 0.75rem;
                padding: 8px 16px;
            }
            .timeline-item h4 {
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --accent-soft: #fef9ed;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --shadow-accent: 0 4px 20px rgba(232, 168, 23, 0.25);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            padding-bottom: 80px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }

        .nav-search input::placeholder {
            color: var(--text-light);
        }

        .search-icon {
            font-size: 0.9rem;
            flex-shrink: 0;
            opacity: 0.6;
        }

        .btn-nav {
            padding: 9px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }

        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }

        .btn-nav-primary {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(232, 168, 23, 0.3);
        }

        .btn-nav-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section */
        .hero-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 80px 0;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(17, 17, 17, 0.7) 0%, rgba(17, 17, 17, 0.9) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-text {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 168, 23, 0.2);
            border: 1px solid rgba(232, 168, 23, 0.4);
            color: var(--accent);
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            width: fit-content;
            backdrop-filter: blur(6px);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.5);
            }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: #fff;
        }

        .hero-title .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            background: var(--accent);
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 28px rgba(232, 168, 23, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-hero-outline {
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition);
            letter-spacing: 0.03em;
        }

        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .hero-stats-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stat-card {
            flex: 1;
            min-width: 100px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            border-radius: var(--radius);
            padding: 16px 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }

        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        .hero-stat-card .stat-num {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -0.01em;
            line-height: 1;
        }

        .hero-stat-card .stat-label {
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
            margin-top: 4px;
            letter-spacing: 0.02em;
        }

        /* Section Common */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-accent-soft {
            background: var(--accent-soft);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text);
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
        }

        .section-dark .section-desc {
            color: var(--text-on-dark-secondary);
        }

        /* Selling Points Three-Column */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }

        .sp-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .sp-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
        }

        .sp-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .sp-card:hover::before {
            transform: scaleX(1);
        }

        .sp-card .sp-icon {
            width: 52px;
            height: 52px;
            background: var(--accent-light);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            transition: all var(--transition);
        }

        .sp-card:hover .sp-icon {
            background: var(--accent);
            color: #fff;
            transform: scale(1.05);
            box-shadow: var(--shadow-accent);
        }

        .sp-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .sp-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* Scene Demo */
        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-top: 40px;
        }

        .scene-demo-grid.reverse {
            direction: rtl;
        }

        .scene-demo-grid.reverse>* {
            direction: ltr;
        }

        .scene-image-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .scene-image-wrap img {
            width: 100%;
            aspect-ratio: 5/4;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .scene-image-wrap:hover img {
            transform: scale(1.03);
        }

        .scene-image-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(8px);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .scene-text h3 {
            font-size: 1.7rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .scene-text p {
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .scene-feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .scene-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .scene-feature-list li .check-icon {
            width: 22px;
            height: 22px;
            background: var(--accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.7rem;
            color: var(--accent);
            font-weight: 700;
        }

        /* Course Cards */
        .course-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            margin-top: 40px;
        }

        .course-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .course-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .course-card img {
            width: 100%;
            aspect-ratio: 3/2;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .course-card:hover img {
            transform: scale(1.05);
        }

        .course-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .course-card-body h4 {
            font-size: 1.05rem;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .course-card-body .course-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .course-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .course-card-body .course-info {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .course-card-body .course-price {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-top: auto;
            padding-top: 8px;
        }

        .course-card-body .course-price span {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-light);
        }

        /* Stats / Social Proof */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .stats-bar .stat-item {
            padding: 36px 28px;
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }

        .stats-bar .stat-item:hover {
            background: var(--accent-soft);
        }

        .stats-bar .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border-light);
        }

        .stats-bar .stat-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .stats-bar .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--accent);
            opacity: 0.3;
            line-height: 1;
            font-weight: 900;
            margin-bottom: -10px;
        }

        .testimonial-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .testimonial-card .author-row {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }

        .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-card .author-name {
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-card .author-role {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 36px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-fast);
            user-select: none;
            letter-spacing: 0.01em;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 0.7rem;
            font-weight: 700;
        }

        .faq-item.open .faq-arrow {
            background: var(--accent);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            text-align: center;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl);
            margin: 0 32px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-on-dark-secondary);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 16px 40px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
        }

        .btn-cta-lg:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 32px rgba(232, 168, 23, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* Bottom Fixed Bar */
        .bottom-fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-light);
            z-index: 999;
            padding: 14px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .bottom-fixed-cta .cta-text {
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            color: var(--text);
        }

        .bottom-fixed-cta .btn-cta-fixed {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
            white-space: nowrap;
        }

        .bottom-fixed-cta .btn-cta-fixed:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 24px rgba(232, 168, 23, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        .bottom-fixed-cta .btn-cta-close {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .bottom-fixed-cta .btn-cta-close:hover {
            background: var(--border);
            color: var(--text);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 60px 0 32px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-on-dark-secondary);
            padding: 5px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
        }

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-on-dark-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Buttons */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
            color: var(--text);
        }

        .btn-solid {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            box-shadow: 0 2px 10px rgba(232, 168, 23, 0.3);
        }

        .btn-solid:hover {
            background: var(--accent-hover);
            box-shadow: 0 4px 18px rgba(232, 168, 23, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 2.3rem;
            }
            .hero-visual img {
                aspect-ratio: 16/9;
            }
            .selling-points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .course-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar .stat-item:nth-child(2)::after {
                display: none;
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .nav-search input {
                width: 90px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-section {
                margin: 0 16px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
                gap: 2px;
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius);
                width: 100%;
                font-size: 0.9rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-actions {
                gap: 6px;
            }
            .nav-search {
                display: none;
            }
            .btn-nav {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .hero-section {
                padding: 50px 0;
                min-height: auto;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-stats-row {
                gap: 8px;
            }
            .hero-stat-card {
                padding: 12px 14px;
            }
            .hero-stat-card .stat-num {
                font-size: 1.3rem;
            }
            .selling-points-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .course-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .stats-bar .stat-item {
                padding: 24px 16px;
            }
            .stats-bar .stat-num {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
            .container {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-legal {
                justify-content: center;
                gap: 10px;
            }
            .cta-section {
                margin: 0 12px;
                padding: 48px 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .bottom-fixed-cta {
                padding: 10px 16px;
                gap: 10px;
            }
            .bottom-fixed-cta .cta-text {
                font-size: 0.85rem;
                flex: 1;
                text-align: center;
            }
            .bottom-fixed-cta .btn-cta-fixed {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            body {
                padding-bottom: 70px;
            }
            .scene-demo-grid {
                gap: 24px;
            }
            .scene-text h3 {
                font-size: 1.35rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                text-align: center;
                justify-content: center;
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .course-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr;
            }
            .stats-bar .stat-item::after {
                display: none;
            }
            .stats-bar .stat-item {
                border-bottom: 1px solid var(--border-light);
            }
            .stats-bar .stat-item:last-child {
                border-bottom: none;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .sp-card {
                padding: 24px 18px;
            }
            .btn-nav {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            padding-top: var(--nav-height);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }

        .nav-search input::placeholder {
            color: var(--text-light);
        }

        .search-icon {
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .btn-nav {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }

        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }

        .btn-nav-primary {
            background: var(--accent);
            color: #fff;
            border: 1.5px solid var(--accent);
        }

        .btn-nav-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 80px 0 100px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 168, 23, 0.15);
            border: 1px solid rgba(232, 168, 23, 0.3);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent);
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }

        .hero-section h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
            color: #fff;
        }

        .hero-section h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 30px;
            transition: all var(--transition);
            border: 2px solid var(--accent);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 23, 0.35);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 30px;
            transition: all var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
            letter-spacing: 0.02em;
        }

        .btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            max-width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: transform var(--transition-slow);
        }

        .hero-visual:hover img {
            transform: scale(1.02);
        }

        .hero-stats-mini {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 14px 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            min-width: 90px;
        }

        .hero-stat-item .stat-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .hero-stat-item .stat-label {
            font-size: 0.75rem;
            color: var(--text-on-dark-secondary);
            margin-top: 4px;
        }

        /* Section Common */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            color: var(--text);
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 10px;
            background: var(--accent-light);
            padding: 5px 14px;
            border-radius: 20px;
        }

        /* Value Props Three */
        .value-props-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .value-prop-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .value-prop-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .value-prop-card .prop-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: var(--accent-light);
            color: var(--accent);
            transition: all var(--transition);
        }

        .value-prop-card:hover .prop-icon {
            background: var(--accent);
            color: #fff;
            transform: scale(1.08);
        }

        .value-prop-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .value-prop-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Equipment Categories */
        .equip-categories-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .equip-cat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
        }

        .equip-cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .equip-cat-card .cat-img-wrap {
            width: 100%;
            height: 160px;
            overflow: hidden;
            background: var(--border-light);
        }

        .equip-cat-card .cat-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .equip-cat-card:hover .cat-img-wrap img {
            transform: scale(1.06);
        }

        .equip-cat-card .cat-info {
            padding: 16px 12px;
        }

        .equip-cat-card .cat-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }

        .equip-cat-card .cat-info span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* Scene Demo */
        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .scene-demo-grid.reverse {
            direction: rtl;
        }

        .scene-demo-grid.reverse>* {
            direction: ltr;
        }

        .scene-image-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .scene-image-wrap img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-slow);
        }

        .scene-image-wrap:hover img {
            transform: scale(1.04);
        }

        .scene-image-wrap .scene-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
        }

        .scene-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .scene-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .scene-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 24px;
        }

        .scene-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text);
        }

        .scene-features li::before {
            content: '✓';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        /* Stats Section */
        .stats-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 70px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-block .stat-number {
            font-size: 3rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -0.03em;
            margin-bottom: 8px;
        }

        .stat-block .stat-desc {
            font-size: 0.95rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.5;
        }

        /* Hot Equipment */
        .hot-equip-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .equip-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .equip-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .equip-card .equip-thumb {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: var(--border-light);
        }

        .equip-card .equip-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .equip-card:hover .equip-thumb img {
            transform: scale(1.05);
        }

        .equip-card .equip-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .equip-card .equip-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .equip-card .equip-body .equip-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .equip-card .equip-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .equip-card .equip-meta .rating {
            color: var(--accent);
            font-weight: 600;
        }

        .equip-card .tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        /* Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .review-card .review-stars {
            color: var(--accent);
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .review-card .review-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card .review-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .review-card .review-author .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }

        .review-card .review-author .author-role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            border: 1px solid var(--border-light);
            max-width: 900px;
            margin: 0 auto;
            box-shadow: var(--shadow-sm);
        }

        .brand-intro-section h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            text-align: center;
        }

        .brand-intro-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.9;
            text-align: justify;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            color: var(--text);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            color: var(--text-light);
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition);
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            padding: 0 24px 18px;
            max-height: 300px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-on-dark-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 36px;
        }

        /* Bottom Sticky Bar */
        .bottom-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 14px 0;
            z-index: 999;
            transform: translateY(100%);
            transition: transform var(--transition);
        }

        .bottom-sticky-bar.visible {
            transform: translateY(0);
        }

        .bottom-sticky-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bottom-sticky-bar .sticky-text {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            flex: 1;
            min-width: 180px;
        }

        .bottom-sticky-bar .sticky-text span {
            color: var(--accent);
        }

        .bottom-sticky-bar .btn-primary {
            font-size: 0.9rem;
            padding: 10px 22px;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 50px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: #fff;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            padding: 5px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
        }

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-on-dark-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-section .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-stats-mini {
                justify-content: center;
            }
            .hero-visual {
                max-width: 400px;
                margin: 0 auto;
            }
            .value-props-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .equip-categories-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hot-equip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .nav-search {
                display: none;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.mobile-open a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius);
                font-size: 0.95rem;
                text-align: center;
            }
            .value-props-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .equip-categories-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .hot-equip-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-block .stat-number {
                font-size: 2.2rem;
            }
            .hero-section {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .brand-intro-section {
                padding: 30px 20px;
                border-radius: var(--radius-lg);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-legal {
                justify-content: center;
                gap: 10px;
                font-size: 0.75rem;
            }
            .bottom-sticky-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .bottom-sticky-bar .sticky-text {
                font-size: 0.85rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .scene-content h3 {
                font-size: 1.4rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .equip-categories-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .equip-cat-card .cat-img-wrap {
                height: 120px;
            }
            .hero-stats-mini {
                gap: 10px;
            }
            .hero-stat-item {
                padding: 10px 14px;
                min-width: 70px;
            }
            .hero-stat-item .stat-num {
                font-size: 1.2rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-block .stat-number {
                font-size: 1.8rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --accent-soft: #fef9e7;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }

        .nav-search input::placeholder {
            color: var(--text-light);
        }

        .search-icon {
            font-size: 0.9rem;
            flex-shrink: 0;
            opacity: 0.6;
        }

        .btn-nav {
            padding: 9px 20px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }

        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }

        .btn-nav-primary {
            background: var(--accent);
            color: #fff;
            border: 1.5px solid var(--accent);
        }

        .btn-nav-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section */
        .hero-section {
            padding: 64px 0 80px;
            background: var(--bg-white);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 168, 23, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-soft);
            color: var(--accent-hover);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(232, 168, 23, 0.2);
        }

        .hero-badge .live-dot {
            width: 8px;
            height: 8px;
            background: #e53935;
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary-lg {
            padding: 14px 32px;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(232, 168, 23, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-primary-lg:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 10px 32px rgba(232, 168, 23, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            padding: 14px 28px;
            background: transparent;
            color: var(--text);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid var(--border);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-outline-lg:hover {
            border-color: var(--text);
            background: var(--border-light);
            color: var(--text);
            transform: translateY(-2px);
        }

        .hero-visual {
            position: relative;
        }

        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 480px;
            margin: 0 auto;
        }

        .hero-main-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            position: relative;
            z-index: 2;
        }

        .hero-main-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 28px 70px rgba(0, 0, 0, 0.18);
        }

        .hero-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: var(--bg-dark-secondary);
        }

        .hero-card-body {
            padding: 20px 24px;
        }

        .hero-card-tag {
            display: inline-block;
            background: #e53935;
            color: #fff;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .hero-card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .hero-card-meta {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .hero-floating-card {
            position: absolute;
            bottom: -20px;
            right: -30px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition);
        }

        .hero-floating-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        .floating-icon {
            width: 44px;
            height: 44px;
            background: var(--accent-soft);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .floating-info .floating-num {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
        }

        .floating-info .floating-label {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        /* Section Common */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Selling Points */
        .selling-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .selling-point-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .selling-point-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
            border-radius: 0 0 var(--radius-sm) var(--radius-sm);
        }

        .selling-point-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .selling-point-card:hover::before {
            opacity: 1;
        }

        .sp-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            transition: all var(--transition);
        }

        .selling-point-card:hover .sp-icon {
            background: var(--accent);
            color: #fff;
            transform: scale(1.05);
        }

        .sp-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .sp-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Live Now Section */
        .live-now-section {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: var(--section-gap) 0;
        }

        .live-now-section .section-title {
            color: #fff;
        }

        .live-now-section .section-desc {
            color: var(--text-on-dark-secondary);
        }

        .live-now-section .section-label {
            color: var(--accent);
        }

        .live-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .live-card {
            background: var(--bg-dark-secondary);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
            cursor: pointer;
        }

        .live-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        }

        .live-card-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #1a1a1a;
        }

        .live-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .live-card:hover .live-card-img-wrap img {
            transform: scale(1.05);
        }

        .live-badge-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            background: #e53935;
            color: #fff;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            z-index: 1;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(229, 57, 53, 0.5);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(229, 57, 53, 0);
            }
        }

        .viewer-count {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 1;
            backdrop-filter: blur(4px);
        }

        .live-card-body {
            padding: 18px 20px;
        }

        .live-card-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .live-card-meta {
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
            display: flex;
            gap: 12px;
            align-items: center;
        }

        /* Stats Section */
        .stats-section {
            background: var(--bg-white);
            padding: var(--section-gap-sm) 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
            transition: all var(--transition);
        }

        .stat-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-num .accent {
            color: var(--accent);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Scene Demo */
        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .scene-visual {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .scene-visual:hover {
            transform: translateY(-4px);
            box-shadow: 0 28px 70px rgba(0, 0, 0, 0.16);
        }

        .scene-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .scene-content {
            max-width: 500px;
        }

        .scene-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .scene-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .scene-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .scene-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.5;
        }

        .scene-features .check-icon {
            width: 22px;
            height: 22px;
            background: var(--accent-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            flex-shrink: 0;
            margin-top: 2px;
            color: var(--accent);
            font-weight: 700;
        }

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .testimonial-stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text);
        }

        .testimonial-role {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--bg);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            user-select: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* Bottom CTA Bar */
        .cta-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 14px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            transform: translateY(100%);
            transition: transform var(--transition);
        }

        .cta-sticky-bar.visible {
            transform: translateY(0);
        }

        .cta-sticky-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .cta-sticky-info {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .cta-sticky-icon {
            width: 44px;
            height: 44px;
            background: var(--accent-soft);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .cta-sticky-text strong {
            display: block;
            font-size: 0.95rem;
            color: var(--text);
        }

        .cta-sticky-text span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .btn-sticky-cta {
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.3);
        }

        .btn-sticky-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 168, 23, 0.4);
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            padding: var(--section-gap) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 168, 23, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-on-dark-secondary);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-section .btn-primary-lg {
            font-size: 1.05rem;
            padding: 16px 36px;
            border-radius: 30px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: #fff;
        }

        .footer-brand-desc {
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.6;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-on-dark-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Mobile Nav */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.active {
            opacity: 1;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: var(--bg-white);
            z-index: 999;
            padding: 80px 24px 24px;
            transition: right var(--transition);
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
        }

        .mobile-nav-panel.active {
            right: 0;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius);
            margin-bottom: 4px;
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--border-light);
            color: var(--text);
        }

        .mobile-nav-panel .mobile-nav-actions {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .mobile-nav-panel .btn-nav {
            text-align: center;
            padding: 12px;
            border-radius: 24px;
            font-weight: 600;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content {
                max-width: 100%;
                text-align: center;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual {
                max-width: 420px;
                margin: 0 auto;
            }
            .hero-floating-card {
                right: -10px;
                bottom: -16px;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .selling-points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .live-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .scene-content {
                max-width: 100%;
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .nav-search {
                display: none;
            }
            .nav-actions .btn-nav-outline {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-nav-overlay.active {
                pointer-events: auto;
            }
            .mobile-nav-panel {
                display: block;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-floating-card {
                right: 0;
                bottom: -14px;
            }
            .selling-points-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .live-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-num {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-legal {
                justify-content: center;
            }
            .cta-sticky-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .cta-sticky-info {
                flex-direction: column;
                text-align: center;
            }
            .scene-content h3 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-floating-card {
                position: relative;
                right: auto;
                bottom: auto;
                margin-top: 16px;
                justify-content: center;
            }
            .hero-card-stack {
                max-width: 100%;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-num {
                font-size: 1.8rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn-primary-lg,
            .hero-cta-group .btn-outline-lg {
                text-align: center;
                justify-content: center;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --accent-glow: #fef6e0;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --bg-warm: #f9f6f0;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --shadow-accent: 0 8px 32px rgba(232, 168, 23, 0.25);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            padding-top: var(--nav-height);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }

        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }

        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }

        .nav-search input::placeholder {
            color: var(--text-light);
        }

        .search-icon {
            font-size: 0.9rem;
            color: var(--text-light);
            flex-shrink: 0;
        }

        .btn-nav {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }

        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }

        .btn-nav-primary {
            background: var(--accent);
            color: #fff;
            font-weight: 700;
        }

        .btn-nav-primary:hover {
            background: var(--accent-hover);
            box-shadow: var(--shadow-accent);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 80px 0 100px;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(17, 17, 17, 0.92) 0%, rgba(26, 26, 26, 0.88) 40%, rgba(17, 17, 17, 0.94) 100%);
            z-index: 1;
        }

        .hero-bg-image {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-text {
            max-width: 560px;
        }

        .hero-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-on-dark);
            backdrop-filter: blur(8px);
            transition: all var(--transition-fast);
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .hero-badge-highlight {
            background: var(--accent);
            border-color: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
        }

        .hero-badge-highlight .badge-dot {
            background: #1a1a1a;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
            color: #fff;
        }

        .hero-title .accent-text {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-on-dark-secondary);
            margin-bottom: 36px;
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1a1a1a;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(232, 168, 23, 0.35);
        }

        .btn-hero-primary:hover {
            background: #f0b830;
            box-shadow: 0 8px 32px rgba(232, 168, 23, 0.5);
            transform: translateY(-2px);
            color: #1a1a1a;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
        }

        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-card-stack {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(10px);
            transition: all var(--transition);
        }

        .hero-card-stack:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        .hero-stat-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
            margin-top: 6px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .hero-qualification {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            background: rgba(232, 168, 23, 0.08);
            border-radius: var(--radius);
            border: 1px solid rgba(232, 168, 23, 0.2);
            margin-top: 8px;
        }

        .hero-qualification .qual-icon {
            font-size: 1.3rem;
            flex-shrink: 0;
            color: var(--accent);
        }

        .hero-qualification .qual-text {
            font-size: 0.9rem;
            color: var(--text-on-dark);
            line-height: 1.5;
        }

        .hero-qualification .qual-text strong {
            color: var(--accent);
        }

        /* Section Common */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }

        .section-warm {
            background: var(--bg-warm);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.7;
            max-width: 600px;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-dark .section-subtitle {
            color: var(--text-on-dark-secondary);
        }

        /* Value Props Three */
        .value-props-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .value-prop-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .value-prop-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
        }

        .value-prop-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-4px);
        }

        .value-prop-card:hover::before {
            transform: scaleX(1);
        }

        .value-prop-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--accent);
            transition: all var(--transition);
        }

        .value-prop-card:hover .value-prop-icon {
            background: var(--accent);
            color: #fff;
        }

        .value-prop-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .value-prop-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* Scene Demo */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scene-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .scene-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform var(--transition-slow);
        }

        .scene-image-wrap:hover img {
            transform: scale(1.03);
        }

        .scene-image-wrap .scene-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .scene-text h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .scene-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .scene-feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .scene-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.5;
        }

        .scene-feature-list li .check-icon {
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* Social Proof */
        .proof-stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 48px;
        }

        .proof-stat-card {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .proof-stat-card:hover {
            box-shadow: var(--shadow);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .proof-stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }

        .proof-stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }

        .testimonial-card::after {
            content: '"';
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 4rem;
            color: var(--accent-light);
            font-weight: 900;
            line-height: 1;
            pointer-events: none;
            opacity: 0.6;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .testimonial-card .testimonial-text {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            position: relative;
            z-index: 1;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 700;
            font-size: 0.9rem;
        }

        .testimonial-role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-3px);
        }

        .feature-card .feature-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--accent);
            transition: all var(--transition);
        }

        .feature-card:hover .feature-icon-wrap {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }

        .feature-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--text-light);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(232, 168, 23, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 14px;
        }

        .cta-subtitle {
            font-size: 1.05rem;
            color: var(--text-on-dark-secondary);
            margin-bottom: 32px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #1a1a1a;
            padding: 16px 40px;
            border-radius: var(--radius-full);
            font-weight: 800;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 28px rgba(232, 168, 23, 0.4);
        }

        .btn-cta-large:hover {
            background: #f0b830;
            box-shadow: 0 10px 36px rgba(232, 168, 23, 0.55);
            transform: translateY(-3px);
            color: #1a1a1a;
        }

        /* Bottom Fixed CTA Bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 14px 0;
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            transform: translateY(100%);
            transition: transform var(--transition);
        }

        .bottom-cta-bar.visible {
            transform: translateY(0);
        }

        .bottom-cta-bar .bar-text {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .bottom-cta-bar .bar-text strong {
            color: var(--accent);
        }

        .btn-bar-cta {
            background: var(--accent);
            color: #1a1a1a;
            padding: 10px 24px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-bar-cta:hover {
            background: #f0b830;
            box-shadow: 0 4px 16px rgba(232, 168, 23, 0.4);
            color: #1a1a1a;
        }

        .btn-bar-close {
            color: rgba(255, 255, 255, 0.5);
            font-size: 1.2rem;
            padding: 4px 8px;
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .btn-bar-close:hover {
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark-secondary);
            color: var(--text-on-dark);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: #fff;
        }

        .footer-brand-desc {
            font-size: 0.9rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.6;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-on-dark-secondary);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: var(--text-on-dark-secondary);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-legal a {
            color: var(--text-on-dark-secondary);
            transition: color var(--transition-fast);
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .value-props-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .proof-stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .nav-search input {
                width: 100px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .container-narrow {
                padding: 0 20px;
            }
            .section {
                padding: 56px 0;
            }
            .section-sm {
                padding: 36px 0;
            }
            .hero-section {
                padding: 56px 0 64px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-badge-group {
                gap: 6px;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
            .value-props-grid {
                grid-template-columns: 1fr;
            }
            .proof-stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .proof-stat-number {
                font-size: 2rem;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-title {
                font-size: 1.7rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-legal {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-110%);
                transition: transform var(--transition);
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }
            .nav-links.mobile-open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius);
                font-size: 0.95rem;
            }
            .bottom-cta-bar {
                flex-direction: column;
                gap: 10px;
                padding: 12px 20px;
                text-align: center;
            }
            .hero-stat-row {
                gap: 20px;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                justify-content: center;
            }
            .proof-stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .proof-stat-number {
                font-size: 1.5rem;
            }
            .hero-stat-row {
                flex-direction: column;
                gap: 14px;
                align-items: flex-start;
            }
            .hero-stat-item {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 10px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .hero-card-stack {
                padding: 20px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-title {
                font-size: 1.4rem;
            }
            .btn-cta-large {
                width: 100%;
                justify-content: center;
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1a1a1a;
            --primary-light: #2c2c2c;
            --accent: #e8a817;
            --accent-hover: #c98f14;
            --accent-light: #fdf3d1;
            --accent-glow: #f5c842;
            --bg: #fafaf9;
            --bg-white: #ffffff;
            --bg-dark: #111111;
            --bg-dark-secondary: #1a1a1a;
            --bg-dark-tertiary: #222222;
            --text: #1a1a1a;
            --text-secondary: #5c5c5c;
            --text-light: #8a8a8a;
            --text-on-dark: #e8e8e8;
            --text-on-dark-secondary: #a0a0a0;
            --border: #e5e5e0;
            --border-light: #f0f0eb;
            --border-dark: #333333;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.4);
            --transition-fast: 0.15s ease;
            --transition: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
            padding-bottom: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.8;
            color: var(--text);
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text);
            background: var(--border-light);
        }
        .nav-links a.active {
            color: var(--text);
            background: var(--border-light);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 20px;
            padding: 8px 16px;
            gap: 8px;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .nav-search:focus-within {
            border-color: var(--border);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }
        .nav-search input {
            background: transparent;
            width: 140px;
            font-size: 0.85rem;
            color: var(--text);
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .search-icon {
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .btn-nav {
            padding: 9px 20px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }
        .btn-nav-outline:hover {
            border-color: var(--text);
            background: var(--border-light);
        }
        .btn-nav-primary {
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
        }
        .btn-nav-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section - 暗底沉浸式 */
        .hero-nutrition {
            position: relative;
            background: var(--bg-dark);
            min-height: 600px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 60px 0;
        }
        .hero-nutrition::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
            filter: saturate(0.6) brightness(0.7);
        }
        .hero-nutrition::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(17, 17, 17, 0.3) 0%, rgba(17, 17, 17, 0.85) 60%, rgba(17, 17, 17, 0.95) 100%);
            z-index: 1;
        }
        .hero-nutrition .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-nutrition .hero-content {
            color: var(--text-on-dark);
        }
        .hero-nutrition .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(232, 168, 23, 0.2);
            border: 1px solid rgba(232, 168, 23, 0.4);
            color: var(--accent-glow);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }
        .hero-nutrition .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(232, 168, 23, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(232, 168, 23, 0);
            }
        }
        .hero-nutrition h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero-nutrition h1 .accent-text {
            color: var(--accent);
            position: relative;
        }
        .hero-nutrition .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero-nutrition .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-hero-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 23, 0.35);
            color: #1a1a1a;
        }
        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            transition: all var(--transition);
        }
        .btn-hero-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .hero-nutrition .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-2xl);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 380px;
            box-shadow: var(--shadow-dark);
        }
        .hero-visual-card img {
            border-radius: var(--radius-lg);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/11;
        }
        .hero-visual-card .hero-card-label {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            text-align: center;
        }
        .hero-visual-card .hero-card-stats {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-stat-chip {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 6px 14px;
            font-size: 0.8rem;
            color: var(--text-on-dark);
            font-weight: 500;
        }
        .hero-stat-chip strong {
            color: var(--accent);
            font-weight: 700;
        }

        /* Section共通 */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-sm {
            padding: var(--section-gap-sm) 0;
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-on-dark);
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: var(--text-on-dark-secondary);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* 卖点三连 */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .benefit-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .benefit-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .benefit-card .benefit-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
        }
        .benefit-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .benefit-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .benefit-card .benefit-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 3.5rem;
            font-weight: 900;
            color: rgba(0, 0, 0, 0.03);
            pointer-events: none;
            line-height: 1;
        }

        /* 场景演示 */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--bg-dark-secondary);
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-dark);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .scenario-card:hover {
            border-color: rgba(232, 168, 23, 0.4);
            box-shadow: var(--shadow-dark);
        }
        .scenario-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .scenario-card .scenario-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .scenario-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .scenario-card p {
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .scenario-card .scenario-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .scenario-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-on-dark-secondary);
            font-weight: 500;
        }

        /* 产品推荐 */
        .products-scroll {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .product-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .product-card img {
            width: 100%;
            aspect-ratio: 1/1;
            object-fit: cover;
        }
        .product-card .product-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .product-card .product-category {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }
        .product-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            line-height: 1.4;
        }
        .product-card .product-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: auto;
        }
        .product-card .product-price {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            margin-top: 4px;
        }

        /* 数据展示 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(232, 168, 23, 0.3);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            font-weight: 500;
        }

        /* 营养搭配流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .process-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }
        .process-card .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto 14px;
        }
        .process-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-card p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* 用户评价 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .testimonial-card .testimonial-stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .testimonial-card .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .testimonial-author-info strong {
            display: block;
            font-size: 0.85rem;
        }
        .testimonial-author-info span {
            font-size: 0.75rem;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .faq-question:hover {
            background: var(--border-light);
        }
        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.7rem;
            color: var(--text-light);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            border-radius: var(--radius-2xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 32px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            color: var(--text-on-dark-secondary);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 30px;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .btn-cta-large:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(232, 168, 23, 0.4);
            color: #1a1a1a;
        }

        /* 底部固定转化条 */
        .sticky-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(26, 26, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 14px 0;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .sticky-bottom-bar.visible {
            transform: translateY(0);
        }
        .sticky-bottom-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sticky-bottom-bar .sticky-info {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .sticky-bottom-bar .sticky-info span {
            color: var(--accent);
        }
        .btn-sticky {
            padding: 10px 24px;
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 700;
            border-radius: 22px;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-sticky:hover {
            background: var(--accent-hover);
            color: #1a1a1a;
            transform: scale(1.03);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-on-dark);
            padding: 56px 0 32px;
            margin-top: var(--section-gap);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: #fff;
        }
        .footer-brand-desc {
            font-size: 0.85rem;
            color: var(--text-on-dark-secondary);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 0.82rem;
            color: var(--text-on-dark-secondary);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-on-dark-secondary);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-legal a {
            color: var(--text-on-dark-secondary);
            transition: color var(--transition-fast);
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-nutrition .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-nutrition h1 {
                font-size: 2.2rem;
            }
            .hero-visual-card {
                max-width: 100%;
            }
            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: 1fr 1fr;
            }
            .products-scroll {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                margin: 0 16px;
                padding: 40px 24px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .nav-search input {
                width: 90px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 12px 16px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.mobile-open a {
                padding: 12px 16px;
                border-radius: var(--radius);
                width: 100%;
            }
            .hero-nutrition {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-nutrition h1 {
                font-size: 1.7rem;
            }
            .hero-nutrition .hero-subtitle {
                font-size: 0.95rem;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .products-scroll {
                grid-template-columns: 1fr 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-legal {
                justify-content: center;
                gap: 10px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section {
                margin: 0 8px;
                padding: 32px 18px;
                border-radius: var(--radius-xl);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .sticky-bottom-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .products-scroll {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .hero-nutrition h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .hero-visual-card {
                padding: 16px;
            }
        }