/* roulang page: index */
:root {
            --primary: #6B1D3A;
            --primary-dark: #59172F;
            --primary-light: #B23A5E;
            --accent: #C98A2D;
            --accent-dark: #A9711E;
            --deep-bg: #1F0F16;
            --light-bg: #FBF7F5;
            --alt-bg: #F3EAE9;
            --text-main: #211A1D;
            --text-muted: #6E5F64;
            --border: #E8DCDA;
            --success: #3F7D5A;
            --disabled: #B9A8AC;
            --white: #FFFFFF;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(107, 29, 58, 0.06);
            --shadow-md: 0 8px 24px rgba(107, 29, 58, 0.14);
            --font-cn: system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-en: Inter, system-ui, sans-serif;
            --transition: 200ms ease-in-out;
            --container-width: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button, input {
            font-family: var(--font-cn);
            font-size: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 72px 0;
        }

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

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-title-line {
            width: 48px;
            height: 6px;
            background-color: var(--accent);
            border-radius: 3px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.3px;
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-top: 10px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            box-shadow: 0 2px 12px rgba(31, 15, 22, 0.18);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
            max-width: var(--container-width);
            margin: 0 auto;
            min-height: 64px;
            gap: 20px;
        }

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

        .nav-brand-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--white);
            letter-spacing: 1px;
        }

        .nav-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--white);
            background-color: rgba(255, 255, 255, 0.08);
        }

        .nav-link:focus-visible {
            outline: 3px solid rgba(201, 138, 45, 0.5);
            outline-offset: 2px;
        }

        .nav-link.active {
            color: var(--white);
            background-color: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent);
            border-radius: 1px;
        }

        .nav-cta {
            background-color: var(--accent);
            color: var(--deep-bg);
            font-weight: 700;
            font-size: 13px;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background-color: #D99C3D;
            color: var(--deep-bg);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(201, 138, 45, 0.3);
        }

        .nav-cta:focus-visible {
            outline: 3px solid rgba(201, 138, 45, 0.5);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.12);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            transition: background var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background-color: var(--white);
            border-radius: 1px;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .nav-toggle:focus-visible {
            outline: 3px solid rgba(201, 138, 45, 0.5);
            outline-offset: 2px;
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/65e7331d22baa205.webp');
            background-size: cover;
            background-position: center;
            background-color: var(--deep-bg);
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 96px 0 80px;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(31, 15, 22, 0.88) 0%, rgba(107, 29, 58, 0.55) 45%, rgba(178, 58, 94, 0.18) 75%, transparent 100%);
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-inner {
            max-width: 640px;
        }

        .hero-h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            color: var(--white);
            margin-bottom: 18px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.85;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(201, 138, 45, 0.5);
            outline-offset: 3px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: 0 2px 6px rgba(107, 29, 58, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(107, 29, 58, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--white);
            border: 2px solid var(--white);
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
            transform: translateY(-2px);
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--deep-bg);
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(201, 138, 45, 0.3);
        }

        .btn-accent:hover {
            background-color: #D99C3D;
            color: var(--deep-bg);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(201, 138, 45, 0.4);
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 8px 18px;
            color: var(--white);
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(8px);
        }

        .hero-badge strong {
            font-size: 18px;
            color: var(--accent);
            font-weight: 700;
        }

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

        .entry-card {
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .entry-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .entry-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: var(--alt-bg);
        }

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

        .entry-card:hover .entry-card-img img {
            transform: scale(1.03);
        }

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

        .entry-card-title {
            font-size: 18px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .entry-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .entry-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            margin-top: 12px;
        }

        .entry-card-arrow span {
            transition: transform var(--transition);
        }

        .entry-card:hover .entry-card-arrow span {
            transform: translateX(4px);
        }

        /* Stats Bar */
        .stats-bar {
            background-color: var(--deep-bg);
            padding: 48px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            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(201, 138, 45, 0.3);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -0.5px;
        }

        .stat-unit {
            font-size: 14px;
            color: var(--accent);
            font-weight: 600;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            line-height: 1.5;
        }

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

        .matrix-card {
            background-color: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .matrix-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: var(--alt-bg);
        }

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

        .matrix-card:hover .matrix-card-img img {
            transform: scale(1.04);
        }

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

        .matrix-card-title {
            font-size: 17px;
            font-weight: 650;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .matrix-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .matrix-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 999px;
            background-color: var(--alt-bg);
            color: var(--primary-light);
            transition: all var(--transition);
        }

        .tag:hover {
            background-color: var(--accent);
            color: var(--white);
        }

        /* Banner */
        .banner-section {
            padding: 0;
        }

        .banner-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/ca739b7bdf0c3764.webp');
            background-size: cover;
            background-position: center;
            background-color: var(--deep-bg);
        }

        .banner-wrap::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(31, 15, 22, 0.85) 0%, rgba(107, 29, 58, 0.55) 50%, rgba(178, 58, 94, 0.25) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding: 48px;
            max-width: 600px;
        }

        .banner-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .banner-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        /* Timeline */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .timeline-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }

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

        .timeline-item:hover {
            padding-left: 8px;
        }

        .timeline-date {
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            background-color: var(--alt-bg);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            min-width: 80px;
            text-align: center;
        }

        .timeline-content h4 {
            font-size: 16px;
            font-weight: 650;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .timeline-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* Ranking */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .ranking-item:hover {
            border-color: var(--accent);
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }

        .ranking-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            background-color: var(--primary-light);
        }

        .ranking-num.top1 {
            background-color: var(--accent);
            color: var(--deep-bg);
        }

        .ranking-thumb {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: var(--alt-bg);
        }

        .ranking-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-info h4 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .ranking-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .ranking-score {
            flex-shrink: 0;
            text-align: right;
        }

        .ranking-score strong {
            display: block;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
        }

        .ranking-score span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            text-align: center;
            padding: 32px 20px;
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--alt-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-light);
            transition: all var(--transition);
        }

        .step-item:hover .step-icon {
            background-color: var(--accent);
            color: var(--deep-bg);
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 650;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .step-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        /* Case Wall */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .case-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 3 / 4;
            background-color: var(--deep-bg);
            cursor: pointer;
        }

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

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

        .case-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(31, 15, 22, 0.75) 80%, rgba(31, 15, 22, 0.92) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
            transition: all var(--transition);
        }

        .case-overlay h4 {
            font-size: 16px;
            font-weight: 650;
            color: var(--white);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .case-overlay .tag {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--white);
            align-self: flex-start;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .news-item:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .news-thumb {
            flex-shrink: 0;
            width: 160px;
            min-height: 110px;
            background-color: var(--alt-bg);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-body {
            padding: 16px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .news-date {
            font-size: 12px;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 4px;
        }

        .news-body h4 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Partners */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .partner-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 64px;
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            filter: grayscale(1);
            opacity: 0.6;
            transition: all var(--transition);
            padding: 0 12px;
            text-align: center;
            word-break: break-word;
        }

        .partner-logo:hover {
            filter: grayscale(0);
            opacity: 1;
            border-color: var(--accent);
            color: var(--primary);
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            transition: all var(--transition);
            text-align: left;
            width: 100%;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            border: none;
        }

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

        .faq-question:focus-visible {
            outline: 3px solid rgba(107, 29, 58, 0.25);
            outline-offset: -2px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--alt-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: all var(--transition);
            font-weight: 400;
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 20px;
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }

        .guarantee-item:hover {
            border-color: var(--success);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .guarantee-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background-color: var(--alt-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--success);
        }

        .guarantee-item h4 {
            font-size: 15px;
            font-weight: 650;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Membership */
        .member-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .member-card {
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .member-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .member-card.featured {
            border: 2px solid var(--accent);
            background: linear-gradient(180deg, #FFFCF5 0%, var(--white) 100%);
        }

        .member-badge-featured {
            position: absolute;
            top: -12px;
            right: 20px;
            background-color: var(--accent);
            color: var(--deep-bg);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .member-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .member-price {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .member-price span {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .member-features {
            flex: 1;
            margin-bottom: 18px;
        }

        .member-features li {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            padding-left: 18px;
            position: relative;
            margin-bottom: 6px;
        }

        .member-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 700;
        }

        /* CTA / Subscribe */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
        }

        .cta-inner {
            text-align: center;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.75;
            margin-bottom: 28px;
        }

        .form-row {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .form-input {
            flex: 1;
            min-width: 200px;
            padding: 13px 18px;
            border-radius: var(--radius-md);
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 14px;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }

        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .form-input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.16);
            outline: 3px solid rgba(201, 138, 45, 0.3);
            outline-offset: 2px;
        }

        /* Info Bar */
        .info-bar {
            background-color: var(--deep-bg);
            padding: 48px 0;
            color: rgba(255, 255, 255, 0.85);
        }

        .info-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .info-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
        }

        .info-brand span {
            color: var(--accent);
        }

        .info-domain {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        .info-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .info-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
        }

        .info-links a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .info-social {
            display: flex;
            gap: 10px;
        }

        .social-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
            font-weight: 600;
        }

        .social-icon:hover {
            background-color: var(--accent);
            color: var(--deep-bg);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background-color: var(--deep-bg);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.8);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 8px;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 650;
            color: var(--white);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-contact p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            section {
                padding: 56px 0;
            }
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .member-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                padding: 10px 16px;
                min-height: 56px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px 20px;
                gap: 4px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                width: 100%;
                text-align: left;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-cta {
                margin-top: 8px;
                text-align: center;
                justify-content: center;
                padding: 13px;
                font-size: 14px;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 420px;
                padding: 64px 0 56px;
            }
            .hero-h1 {
                font-size: 26px;
                line-height: 1.3;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-badges {
                flex-direction: column;
                align-items: flex-start;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 28px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .news-thumb {
                width: 100px;
                min-height: 80px;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .member-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .info-bar-inner {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
            .info-links {
                justify-content: center;
            }
            .info-social {
                justify-content: center;
            }
            section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .banner-content {
                padding: 28px 20px;
            }
            .banner-title {
                font-size: 20px;
            }
            .ranking-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 12px 14px;
            }
            .ranking-thumb {
                width: 44px;
                height: 44px;
            }
            .ranking-num {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .timeline-item {
                flex-direction: column;
                gap: 8px;
                padding: 14px 0;
            }
            .timeline-date {
                align-self: flex-start;
            }
            .form-row {
                flex-direction: column;
            }
            .form-input {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .nav-brand-text {
                font-size: 15px;
                letter-spacing: 0;
            }
            .hero-h1 {
                font-size: 22px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .stat-number {
                font-size: 24px;
            }
            .entry-card-body, .matrix-card-body {
                padding: 16px;
            }
            .news-item {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                min-height: 140px;
            }
            .member-card {
                padding: 20px 16px;
            }
        }

/* roulang page: index */
:root {
            --color-primary: #1E1814;
            --color-primary-dark: #14100D;
            --color-secondary: #C9A15E;
            --color-accent: #D55B28;
            --color-accent-hover: #B9441D;
            --color-bg: #F7F1E8;
            --color-bg-alt: #F3ECE1;
            --color-white: #FFFFFF;
            --color-text: #221B15;
            --color-text-muted: #6C5A4A;
            --color-border: #E5D9C8;
            --color-gold-light: #E8D5B5;
            --color-nav-bg: linear-gradient(135deg, #1E1814 0%, #4A2E1D 50%, #7B4A1E 100%);
            --color-hero-overlay: linear-gradient(135deg, rgba(30,24,20,0.88) 0%, rgba(30,24,20,0.65) 50%, rgba(30,24,20,0.45) 100%);
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-input: 10px;
            --shadow-card: 0 4px 16px rgba(30,24,20,0.06);
            --shadow-card-hover: 0 12px 28px rgba(30,24,20,0.12);
            --shadow-nav: 0 2px 12px rgba(30,24,20,0.12);
            --font-heading: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
            --font-body: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1200px;
            --section-padding-desktop: 72px 24px;
            --section-padding-mobile: 40px 16px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        :focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ========== 导航样式 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-nav-bg);
            box-shadow: var(--shadow-nav);
            min-height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            gap: 16px;
            min-height: 68px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: #FFF7EA;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.88;
            color: #FFF7EA;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-secondary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            flex-shrink: 0;
            font-weight: 800;
        }

        .nav-logo .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .nav-logo .logo-brand {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.3px;
        }

        .nav-logo .logo-sub {
            font-size: 11px;
            font-weight: 400;
            color: rgba(255,247,234,0.75);
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-menu a {
            color: rgba(255,247,234,0.85);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            position: relative;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu a:hover {
            background: rgba(255,255,255,0.14);
            color: #FFF7EA;
        }

        .nav-menu a.nav-active {
            color: #FFF7EA;
            background: rgba(255,255,255,0.1);
        }

        .nav-menu a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--color-secondary);
            border-radius: 1px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #FFF;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--color-accent-hover);
            color: #FFF;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(213,91,40,0.35);
        }

        .nav-cta:active {
            transform: scale(0.98);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255,255,255,0.1);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255,255,255,0.2);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFF7EA;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-mobile-panel {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: var(--color-nav-bg);
            padding: 16px 24px 24px;
            box-shadow: 0 16px 32px rgba(30,24,20,0.3);
            z-index: 999;
            flex-direction: column;
            gap: 6px;
        }

        .nav-mobile-panel.open {
            display: flex;
        }

        .nav-mobile-panel a {
            color: rgba(255,247,234,0.85);
            font-size: 16px;
            font-weight: 500;
            padding: 12px 16px;
            border-radius: 10px;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .nav-mobile-panel a:hover {
            background: rgba(255,255,255,0.14);
            color: #FFF7EA;
        }

        .nav-mobile-panel a.nav-active {
            background: rgba(255,255,255,0.1);
            color: #FFF7EA;
        }

        .nav-mobile-panel .nav-cta {
            margin-top: 8px;
            justify-content: center;
            font-size: 16px;
            padding: 12px 20px;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('/assets/images/65e7331d22baa205.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--color-hero-overlay);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 24px;
            max-width: 900px;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(201,161,94,0.22);
            color: #F5E6C8;
            padding: 6px 18px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(201,161,94,0.4);
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: clamp(28px, 4.5vw, 40px);
            font-weight: 700;
            line-height: 1.25;
            color: #FFF7EA;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .hero-subtitle {
            font-size: clamp(15px, 1.8vw, 17px);
            font-weight: 400;
            line-height: 1.9;
            color: rgba(255,247,234,0.88);
            max-width: 720px;
            margin: 0 auto 30px;
            letter-spacing: 0.3px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            min-width: 160px;
        }

        .btn:active {
            transform: scale(0.98);
        }

        .btn-primary {
            background: var(--color-accent);
            color: #FFF;
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            color: #FFF;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(213,91,40,0.4);
        }

        .btn-secondary {
            background: transparent;
            color: #FFF7EA;
            border: 1px solid var(--color-secondary);
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.12);
            color: #FFF7EA;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.25);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            justify-content: center;
            align-items: center;
            color: rgba(255,247,234,0.75);
            font-size: 14px;
            font-weight: 500;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust .dot {
            width: 5px;
            height: 5px;
            background: var(--color-secondary);
            border-radius: 50%;
            display: inline-block;
        }

        /* ========== 板块通用样式 ========== */
        .section {
            padding: var(--section-padding-desktop);
        }

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

        .section-white {
            background: var(--color-white);
        }

        .section-dark {
            background: var(--color-primary);
            color: #F5E6C8;
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 40px;
        }

        .section-header.left {
            text-align: left;
            margin-left: 0;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            background: rgba(201,161,94,0.15);
            color: var(--color-secondary);
            padding: 4px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
            border: 1px solid rgba(201,161,94,0.3);
        }

        .section-dark .section-tag {
            background: rgba(201,161,94,0.2);
            color: #F5E6C8;
            border-color: rgba(201,161,94,0.4);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-title {
            color: #FFF7EA;
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        .section-dark .section-desc {
            color: rgba(245,230,200,0.7);
        }

        .section-header.left .section-desc {
            margin-left: 0;
        }

        /* ========== 更新条 ========== */
        .update-bar {
            background: var(--color-primary);
            border-bottom: 1px solid rgba(201,161,94,0.2);
        }

        .update-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 14px 24px;
            min-height: 56px;
        }

        .update-bar-label {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #F5E6C8;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
        }

        .update-bar-label .pulse-dot {
            width: 9px;
            height: 9px;
            background: var(--color-accent);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(213,91,40,0.6); }
            50% { box-shadow: 0 0 0 8px rgba(213,91,40,0); }
        }

        .update-bar-text {
            color: rgba(255,247,234,0.75);
            font-size: 14px;
            line-height: 1.6;
            flex: 1;
            min-width: 200px;
        }

        .update-bar .btn-sm {
            background: transparent;
            color: var(--color-secondary);
            border: 1px solid rgba(201,161,94,0.5);
            padding: 6px 18px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .update-bar .btn-sm:hover {
            background: rgba(201,161,94,0.15);
            color: #F5E6C8;
            transform: translateY(-1px);
        }

        /* ========== 精选栏目矩阵 ========== */
        .channels-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .channel-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .channel-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .channel-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .channel-card:hover .channel-card-img img {
            transform: scale(1.06);
        }

        .channel-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(30,24,20,0.8);
            color: #F5E6C8;
            padding: 4px 12px;
            border-radius: var(--radius-btn);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
        }

        .channel-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .channel-card-title {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .channel-card-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-muted);
            flex: 1;
        }

        .channel-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 14px;
            margin-top: 14px;
            transition: all var(--transition-fast);
        }

        .channel-card-link:hover {
            color: var(--color-accent-hover);
            gap: 10px;
        }

        /* ========== 画质技术亮点 ========== */
        .tech-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .tech-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            aspect-ratio: 4/3;
        }

        .tech-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .tech-content h3 {
            font-family: var(--font-heading);
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .tech-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text-muted);
            margin-bottom: 18px;
        }

        .tech-points {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tech-point {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }

        .tech-point:hover {
            border-color: var(--color-secondary);
            background: rgba(201,161,94,0.1);
            transform: translateY(-1px);
        }

        /* ========== 数据优势条 ========== */
        .stats-bar {
            background: var(--color-primary);
            padding: var(--section-padding-desktop);
            position: relative;
            overflow: hidden;
        }

        .stats-bar::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(201,161,94,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-bar .container {
            position: relative;
            z-index: 1;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item {
            padding: 10px;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: var(--color-secondary);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255,247,234,0.75);
            font-weight: 500;
            margin-top: 8px;
            letter-spacing: 0.5px;
        }

        /* ========== 使用流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .step-card {
            text-align: center;
            padding: 28px 20px 24px;
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .step-number {
            width: 48px;
            height: 48px;
            background: var(--color-secondary);
            color: var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 14px;
            letter-spacing: 0;
        }

        .step-title {
            font-family: var(--font-heading);
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        /* ========== 热门专题墙 ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 4/5;
            box-shadow: var(--shadow-card);
            cursor: pointer;
            transition: all var(--transition-base);
        }

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

        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .topic-card:hover img {
            transform: scale(1.08);
        }

        .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(30,24,20,0.85) 0%, rgba(30,24,20,0.25) 60%, rgba(30,24,20,0.05) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
            transition: all var(--transition-base);
        }

        .topic-overlay h4 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: #FFF7EA;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .topic-overlay .topic-tag {
            display: inline-block;
            background: rgba(201,161,94,0.85);
            color: var(--color-primary);
            padding: 3px 12px;
            border-radius: var(--radius-btn);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
            align-self: flex-start;
            margin-bottom: 8px;
        }

        /* ========== 更新资讯列表 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 20px 8px;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            border-radius: 8px;
        }

        .news-item:hover {
            background: rgba(201,161,94,0.06);
            padding-left: 16px;
        }

        .news-date {
            flex-shrink: 0;
            font-weight: 700;
            font-size: 14px;
            color: var(--color-secondary);
            min-width: 90px;
            padding-top: 3px;
            letter-spacing: 0.5px;
        }

        .news-content h4 {
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
        }

        .news-item:hover .news-content h4 {
            color: var(--color-secondary);
        }

        .news-content p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-muted);
        }

        /* ========== 内容来源 ========== */
        .sources-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .source-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition-fast);
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
        }

        .source-item:hover {
            border-color: var(--color-secondary);
            background: rgba(201,161,94,0.08);
            color: var(--color-text);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .source-item .source-icon {
            font-size: 28px;
            display: block;
            margin-bottom: 10px;
            color: var(--color-secondary);
        }

        /* ========== 会员套餐 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
            display: flex;
            flex-direction: column;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            border: 2px solid transparent;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--color-secondary);
        }

        .pricing-card.featured {
            background: var(--color-primary);
            color: #F5E6C8;
            border-color: var(--color-secondary);
        }

        .pricing-card.featured .pricing-name,
        .pricing-card.featured .pricing-value {
            color: #FFF7EA;
        }

        .pricing-card.featured .pricing-feature {
            color: rgba(255,247,234,0.7);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #FFF;
            padding: 4px 16px;
            border-radius: var(--radius-btn);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .pricing-name {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .pricing-value {
            font-family: var(--font-heading);
            font-size: 34px;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 4px;
        }

        .pricing-value span {
            font-size: 16px;
            font-weight: 500;
        }

        .pricing-period {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 24px;
            text-align: left;
            flex: 1;
        }

        .pricing-features li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--color-text-muted);
            border-bottom: 1px dashed var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pricing-features li:last-child {
            border-bottom: none;
        }

        .pricing-features .check {
            color: var(--color-secondary);
            font-weight: 700;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--color-white);
            transition: all var(--transition-fast);
        }

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

        .faq-item.active {
            border-left: 3px solid var(--color-secondary);
        }

        .faq-question {
            padding: 18px 22px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
        }

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

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--color-secondary);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }

        /* ========== 访问保障条 ========== */
        .guarantee-bar {
            background: var(--color-bg-alt);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border: 1px solid var(--color-border);
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
        }

        .guarantee-item .g-icon {
            width: 40px;
            height: 40px;
            background: rgba(201,161,94,0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            color: var(--color-secondary);
        }

        /* ========== 标签云 ========== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag-pill:hover {
            background: var(--color-accent);
            color: #FFF;
            border-color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: 0 6px 14px rgba(213,91,40,0.25);
        }

        /* ========== CTA转化区 ========== */
        .cta-section {
            background: var(--color-primary);
            padding: var(--section-padding-desktop);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201,161,94,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-title {
            font-family: var(--font-heading);
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            color: #FFF7EA;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .cta-desc {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255,247,234,0.75);
            max-width: 600px;
            margin: 0 auto 26px;
        }

        .cta-section .btn-primary {
            background: var(--color-accent);
            font-size: 17px;
            padding: 15px 38px;
        }

        .cta-section .btn-primary:hover {
            box-shadow: 0 14px 28px rgba(213,91,40,0.5);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255,247,234,0.7);
            padding: 48px 24px 28px;
            border-top: 1px solid rgba(201,161,94,0.15);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            color: #FFF7EA;
        }

        .footer-brand .logo-text {
            font-family: var(--font-heading);
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            color: #FFF7EA;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.75;
            color: rgba(255,247,234,0.55);
            max-width: 280px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 15px;
            font-weight: 700;
            color: #F5E6C8;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col a {
            color: rgba(255,247,234,0.6);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-secondary);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(201,161,94,0.15);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255,247,234,0.45);
            letter-spacing: 0.5px;
        }

        .footer-bottom a {
            color: rgba(255,247,234,0.6);
        }

        .footer-bottom a:hover {
            color: var(--color-secondary);
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            .channels-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .sources-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .pricing-card {
                padding: 24px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding-desktop: 44px 16px;
            }
            .section {
                padding: 44px 16px;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .nav-menu {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 480px;
            }
            .hero .container {
                padding: 60px 16px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .btn {
                min-width: 140px;
                padding: 12px 24px;
                font-size: 15px;
            }
            .hero-actions {
                gap: 10px;
            }
            .channels-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .tech-split {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .tech-image {
                order: -1;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px 8px;
            }
            .news-date {
                min-width: auto;
                padding-top: 0;
            }
            .sources-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .guarantee-bar {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .update-bar .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .update-bar-text {
                min-width: auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 26px;
            }
            .cta-title {
                font-size: 22px;
            }
        }

        @media (max-width: 576px) {
            :root {
                --section-padding-desktop: 32px 14px;
            }
            .section {
                padding: 32px 14px;
            }
            .container {
                padding: 0 14px;
            }
            .hero {
                min-height: 420px;
            }
            .hero-title {
                font-size: 22px;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 14px;
                line-height: 1.8;
            }
            .hero-trust {
                font-size: 12px;
                gap: 8px 12px;
            }
            .btn {
                min-width: 120px;
                padding: 11px 18px;
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                max-width: 300px;
                margin: 0 auto 28px;
            }
            .channels-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .sources-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 24px;
            }
            .stat-label {
                font-size: 13px;
            }
            .section-title {
                font-size: 20px;
            }
            .news-content h4 {
                font-size: 15px;
            }
            .pricing-card {
                padding: 24px 16px;
            }
            .pricing-value {
                font-size: 28px;
            }
            .guarantee-item {
                font-size: 13px;
            }
            .guarantee-item .g-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .tag-pill {
                font-size: 13px;
                padding: 6px 14px;
            }
            .cta-title {
                font-size: 20px;
            }
            .cta-desc {
                font-size: 14px;
            }
            .nav-logo .logo-brand {
                font-size: 15px;
            }
            .nav-logo .logo-sub {
                font-size: 10px;
            }
            .update-bar-label {
                font-size: 13px;
            }
            .update-bar-text {
                font-size: 13px;
            }
            .footer-brand .logo-text {
                font-size: 17px;
            }
            .footer-col h4 {
                font-size: 14px;
            }
            .footer-col a {
                font-size: 13px;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }

        @media (max-width: 380px) {
            .hero-title {
                font-size: 19px;
            }
            .hero-subtitle {
                font-size: 13px;
            }
            .btn {
                font-size: 13px;
                padding: 10px 14px;
                min-width: 100px;
            }
            .section-title {
                font-size: 18px;
            }
            .channel-card-title {
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6B1D3A;
            --primary-dark: #59172F;
            --primary-light: #B23A5E;
            --accent: #C98A2D;
            --accent-dark: #A9711E;
            --deep-bg: #1F0F16;
            --light-bg: #FBF7F5;
            --alt-bg: #F3EAE9;
            --text-main: #211A1D;
            --text-muted: #6E5F64;
            --border: #E8DCDA;
            --success: #3F7D5A;
            --disabled: #B9A8AC;
            --white: #FFFFFF;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(107, 29, 58, 0.06);
            --shadow-md: 0 8px 24px rgba(107, 29, 58, 0.14);
            --font-cn: system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --font-en: Inter, system-ui, sans-serif;
            --transition: 200ms ease-in-out;
            --container-width: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--light-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        select {
            font-family: var(--font-cn);
            font-size: inherit;
            outline: none;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 72px 0;
        }

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

        .section-title-wrap {
            margin-bottom: 40px;
        }

        .section-title-line {
            width: 48px;
            height: 6px;
            background-color: var(--accent);
            border-radius: 3px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.3px;
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-top: 10px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            box-shadow: 0 2px 12px rgba(31, 15, 22, 0.18);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
            max-width: var(--container-width);
            margin: 0 auto;
            min-height: 64px;
            gap: 20px;
        }

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

        .nav-brand-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--white);
            letter-spacing: 1px;
        }

        .nav-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.14);
            color: var(--white);
        }

        .nav-link.nav-active {
            color: var(--white);
            background: rgba(255, 255, 255, 0.12);
        }

        .nav-link.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            background: var(--accent);
            color: var(--white);
            font-weight: 600;
            font-size: 14px;
            border-radius: 999px;
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201, 138, 45, 0.35);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.12);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--white);
            border-radius: 1px;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .nav-mobile-panel {
            display: none;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 12px 24px 20px;
            flex-direction: column;
            gap: 4px;
        }

        .nav-mobile-panel .nav-link,
        .nav-mobile-panel .nav-cta {
            width: 100%;
            text-align: center;
            justify-content: center;
        }

        /* Category Hero Cap */
        .category-hero {
            background: linear-gradient(135deg, var(--deep-bg) 0%, var(--primary-dark) 60%, var(--primary) 100%);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 138, 45, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }

        .category-hero-content {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-left h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--white);
            letter-spacing: -0.5px;
        }

        .category-hero-left h1 .highlight {
            color: var(--accent);
        }

        .category-hero-left .hero-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 14px;
            max-width: 560px;
            line-height: 1.8;
        }

        .category-hero-right {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 12px;
        }

        .category-stat-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 12px 20px;
            color: var(--white);
            font-size: 13px;
            font-weight: 500;
        }

        .category-stat-badge .num {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
        }

        /* Filter Toolbar */
        .filter-toolbar {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
            position: sticky;
            top: 64px;
            z-index: 50;
        }

        .filter-toolbar-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-buttons {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--white);
            color: var(--text-muted);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(201, 138, 45, 0.06);
        }

        .filter-btn.active {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--white);
            font-weight: 600;
        }

        .filter-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 13px;
        }

        .filter-sort select {
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--white);
            color: var(--text-main);
            font-size: 13px;
            cursor: pointer;
            transition: border-color var(--transition);
        }

        .filter-sort select:hover {
            border-color: var(--accent);
        }

        .filter-sort select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .result-count {
            font-size: 13px;
            color: var(--text-muted);
        }

        .result-count strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* Category Grid */
        .category-grid-section {
            background: var(--alt-bg);
        }

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

        .category-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .category-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .category-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .category-card:hover .category-card-image img {
            transform: scale(1.04);
        }

        .category-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(107, 29, 58, 0.9);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .category-card-tag.tag-gold {
            background: rgba(201, 138, 45, 0.92);
        }

        .category-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .category-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            letter-spacing: -0.2px;
        }

        .category-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .category-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid var(--border);
        }

        .category-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .category-card-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .load-more {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        /* Featured Row */
        .featured-row-section {
            background: var(--white);
        }

        .featured-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .featured-mini-card {
            background: var(--light-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border);
            cursor: pointer;
        }

        .featured-mini-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }

        .featured-mini-card img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .featured-mini-card-body {
            padding: 14px 16px;
        }

        .featured-mini-card-body h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
        }

        .featured-mini-card-body .meta-line {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Data Strip */
        .data-strip {
            background: linear-gradient(135deg, var(--deep-bg) 0%, var(--primary-dark) 60%, var(--primary) 100%);
            padding: 48px 0;
        }

        .data-strip .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .data-strip-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
        }

        .data-strip-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

        .data-strip-items {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .data-strip-item {
            text-align: center;
        }

        .data-strip-item .big-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.5px;
        }

        .data-strip-item .data-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

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

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: color var(--transition);
            width: 100%;
            text-align: left;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--alt-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            transition: all var(--transition);
            font-weight: 700;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 138, 45, 0.15);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin: 12px auto 28px;
            max-width: 520px;
            line-height: 1.8;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background: var(--accent);
            color: var(--white);
            font-weight: 700;
            font-size: 15px;
            border-radius: 999px;
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 138, 45, 0.4);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: 999px;
            border: 1px solid var(--accent);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(201, 138, 45, 0.08);
            color: var(--accent-dark);
            transform: translateY(-2px);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* Tags */
        .tags-section {
            background: var(--white);
        }

        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 999px;
            background: var(--light-bg);
            border: 1px solid var(--accent);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .tag-pill:hover {
            background: var(--accent);
            color: var(--white);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .tag-pill:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--deep-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
        }

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

        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .featured-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-cta-desktop {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-mobile-panel.open {
                display: flex;
            }

            section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .category-hero {
                padding: 32px 0 40px;
            }

            .category-hero-left h1 {
                font-size: 26px;
            }

            .category-hero-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .category-hero-right {
                align-items: flex-start;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 8px;
            }

            .category-stat-badge {
                padding: 8px 14px;
                font-size: 12px;
            }

            .category-stat-badge .num {
                font-size: 18px;
            }

            .filter-toolbar {
                top: 56px;
            }

            .filter-toolbar-wrapper {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .featured-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .data-strip .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .data-strip-items {
                gap: 20px;
                width: 100%;
                justify-content: space-between;
            }

            .data-strip-item .big-num {
                font-size: 22px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-wrapper {
                padding: 10px 16px;
                min-height: 56px;
            }

            .nav-brand-text {
                font-size: 15px;
            }

            .nav-brand-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }

            section {
                padding: 32px 0;
            }

            .section-title {
                font-size: 20px;
            }

            .section-title-wrap {
                margin-bottom: 24px;
            }

            .category-hero {
                padding: 24px 0 32px;
            }

            .category-hero-left h1 {
                font-size: 22px;
                line-height: 1.35;
            }

            .category-hero-left .hero-desc {
                font-size: 13px;
            }

            .breadcrumb {
                font-size: 11px;
                margin-bottom: 14px;
            }

            .filter-buttons {
                gap: 6px;
            }

            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
            }

            .filter-sort {
                font-size: 12px;
            }

            .filter-sort select {
                padding: 6px 10px;
                font-size: 12px;
            }

            .featured-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .data-strip {
                padding: 32px 0;
            }

            .data-strip-text h3 {
                font-size: 20px;
            }

            .data-strip-item .big-num {
                font-size: 20px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 13px;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-section h2 {
                font-size: 20px;
            }

            .cta-section p {
                font-size: 13px;
                margin: 8px auto 20px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
            }

            .tag-pill {
                padding: 8px 14px;
                font-size: 12px;
            }

            .site-footer {
                padding: 40px 0 20px;
            }

            .footer-bottom {
                font-size: 11px;
            }
        }