/* roulang page: index */
:root {
            --color-bg-dark: #1B1712;
            --color-bg-darker: #14100D;
            --color-bg-card-dark: #211D18;
            --color-gold: #C9A24B;
            --color-gold-hover: #B8933D;
            --color-copper: #C96F3B;
            --color-jade: #4A9E8E;
            --color-bg-light: #F5F0E6;
            --color-bg-light-alt: #F7F2E8;
            --color-text-dark: #2A2520;
            --color-text-muted: #6B6259;
            --color-border-light: #E0D8CC;
            --color-text-light: #F5F0E6;
            --color-text-light-muted: #C9BFAE;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 2px 12px rgba(60, 40, 20, 0.08);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition-base: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --container-pad: 24px;
        }

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

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

        body {
            font-family: var(--font-family);
            line-height: 1.8;
            font-weight: 400;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

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

        button,
        input {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 16, 13, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 162, 75, 0.35);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.05em;
            user-select: none;
        }

        .logo-icon {
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 4s ease-in-out infinite;
        }

        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: rotate(0deg) scale(1); }
            50% { opacity: 0.7; transform: rotate(180deg) scale(0.85); }
        }

        .logo span {
            color: var(--color-gold);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light-muted);
            letter-spacing: 0.02em;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-gold);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .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);
        }

        /* Mobile menu overlay */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 16, 13, 0.98);
            z-index: 90;
            padding: 40px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light);
            padding: 12px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
            transition: color var(--transition-base);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-gold);
        }

        /* Hero Section */
        .hero {
            position: relative;
            min-height: 90vh;
            max-height: 820px;
            display: flex;
            align-items: center;
            background: var(--color-bg-darker);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/451a3cb0cdef6639.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
            z-index: 1;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 16, 13, 0.65) 0%, rgba(20, 16, 13, 0.85) 60%, rgba(20, 16, 13, 0.95) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .hero-content {
            max-width: 720px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(201, 162, 75, 0.15);
            border: 1px solid rgba(201, 162, 75, 0.4);
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-gold);
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }

        .hero-tag .dot {
            width: 6px;
            height: 6px;
            background: var(--color-jade);
            border-radius: 50%;
            animation: dotPulse 2s ease-in-out infinite;
        }

        @keyframes dotPulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3rem);
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .hero h1 .gold-text {
            color: var(--color-gold);
            display: inline-block;
        }

        .hero-subtitle {
            font-size: clamp(1rem, 2vw, 1.15rem);
            color: var(--color-text-light-muted);
            line-height: 1.9;
            max-width: 600px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: var(--color-gold);
            color: var(--color-bg-darker);
            box-shadow: 0 4px 16px rgba(201, 162, 75, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-gold-hover);
            box-shadow: 0 8px 28px rgba(201, 162, 75, 0.45);
            transform: translateY(-2px);
            color: var(--color-bg-darker);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(201, 162, 75, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: var(--color-gold);
            border: 2px solid var(--color-gold);
            box-shadow: 0 0 0 rgba(201, 162, 75, 0);
        }
        .btn-secondary:hover {
            background: rgba(201, 162, 75, 0.1);
            border-color: var(--color-gold-hover);
            box-shadow: 0 0 20px rgba(201, 162, 75, 0.25);
            transform: translateY(-2px);
            color: var(--color-gold);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }

        .hero-trust-item .trust-icon {
            width: 8px;
            height: 8px;
            background: var(--color-jade);
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* Stats Bar */
        .stats-bar {
            background: var(--color-bg-card-dark);
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
            padding: 20px 0;
            position: relative;
            z-index: 5;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            text-align: center;
        }

        .stat-item {
            padding: 8px 12px;
        }
        .stat-number {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-gold);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            letter-spacing: 0.03em;
        }

        /* Section base */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
        }
        .section-dark .section-title {
            color: var(--color-text-light);
        }
        .section-dark .section-subtitle {
            color: var(--color-text-light-muted);
        }

        .section-light {
            background: var(--color-bg-light);
            color: var(--color-text-dark);
        }
        .section-light .section-title {
            color: var(--color-text-dark);
        }
        .section-light .section-subtitle {
            color: var(--color-text-muted);
        }

        .section-alt {
            background: var(--color-bg-light-alt);
            color: var(--color-text-dark);
        }
        .section-alt .section-title {
            color: var(--color-text-dark);
        }
        .section-alt .section-subtitle {
            color: var(--color-text-muted);
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 1.9rem);
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 32px;
            background: var(--color-gold);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 600px;
            padding-left: 16px;
        }

        /* Section: 赛事看点 cards */
        .cards-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cards-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .cards-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--color-bg-card-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-dark);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 162, 75, 0.5);
        }
        .article-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #2A2520;
            position: relative;
        }
        .article-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .card-image img {
            transform: scale(1.04);
        }
        .article-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-gold);
            background: rgba(201, 162, 75, 0.15);
            border-radius: 100px;
            letter-spacing: 0.04em;
            align-self: flex-start;
        }
        .article-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-light);
            line-height: 1.5;
            letter-spacing: 0.02em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-summary {
            font-size: 0.88rem;
            color: var(--color-text-light-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--color-text-light-muted);
            padding-top: 12px;
            border-top: 1px solid rgba(201, 162, 75, 0.15);
        }
        .card-read {
            color: var(--color-gold);
            font-weight: 600;
            font-size: 0.82rem;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-base);
        }
        .article-card:hover .card-read {
            gap: 8px;
        }

        /* Section: 数据洞察双栏 */
        .insight-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .insight-item {
            background: var(--color-bg-card-dark);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid rgba(201, 162, 75, 0.15);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .insight-item:hover {
            border-color: rgba(201, 162, 75, 0.45);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .insight-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-gold);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .insight-item p {
            font-size: 0.9rem;
            color: var(--color-text-light-muted);
            line-height: 1.8;
        }

        /* Section: 玩法步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(60, 40, 20, 0.15);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--color-gold);
            color: var(--color-bg-darker);
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 50%;
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }
        .step-card:hover .step-number {
            background: var(--color-copper);
            transform: scale(1.08);
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Section: 热门专题 */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--color-bg-card-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-dark);
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .topic-card .topic-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #2A2520;
        }
        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-smooth);
        }
        .topic-card:hover .topic-image img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .topic-card .topic-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.02em;
        }
        .topic-card .topic-arrow {
            color: var(--color-gold);
            font-size: 1.2rem;
            font-weight: 700;
            transition: transform var(--transition-base);
        }
        .topic-card:hover .topic-arrow {
            transform: translateX(6px);
        }

        /* Section: 品牌介绍长文 */
        .brand-article {
            max-width: 800px;
            margin: 0 auto;
        }
        .brand-article p {
            font-size: 0.98rem;
            line-height: 2.0;
            color: var(--color-text-muted);
            margin-bottom: 18px;
            text-align: justify;
            letter-spacing: 0.01em;
        }
        .brand-article p:first-of-type::first-letter {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-gold);
            float: left;
            margin: 8px 12px 0 0;
            line-height: 1;
        }
        .brand-article strong {
            color: var(--color-text-dark);
            font-weight: 700;
        }

        /* Section: 用户口碑 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            border: 1px solid transparent;
        }
        .testimonial-card:hover {
            border-color: rgba(201, 162, 75, 0.35);
            box-shadow: 0 8px 24px rgba(60, 40, 20, 0.12);
            transform: translateY(-2px);
        }
        .testimonial-stars {
            color: var(--color-gold);
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .testimonial-text {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            font-style: italic;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            color: var(--color-text-dark);
            font-weight: 600;
        }
        .testimonial-author .avatar-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-gold), var(--color-copper));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-bg-darker);
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        /* Section: 时间线 */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 20px;
            left: calc(12.5% - 1px);
            right: calc(12.5% - 1px);
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color-gold), var(--color-copper), transparent);
        }
        .timeline-item {
            text-align: center;
            position: relative;
            padding-top: 48px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            border-radius: 50%;
            border: 3px solid var(--color-bg-dark);
        }
        .timeline-item .timeline-year {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-gold);
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }
        .timeline-item .timeline-desc {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            line-height: 1.7;
        }

        /* Section: 合作伙伴 */
        .partners-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .partner-item {
            padding: 18px 28px;
            background: rgba(201, 162, 75, 0.08);
            border: 1px solid rgba(201, 162, 75, 0.2);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-light-muted);
            letter-spacing: 0.04em;
            transition: all var(--transition-base);
            cursor: pointer;
            user-select: none;
        }
        .partner-item:hover {
            background: rgba(201, 162, 75, 0.15);
            border-color: rgba(201, 162, 75, 0.45);
            color: var(--color-gold);
            transform: translateY(-2px);
        }

        /* Section: FAQ */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: rgba(201, 162, 75, 0.4);
            box-shadow: var(--shadow-light);
        }
        .faq-item summary {
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text-dark);
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            transition: color var(--transition-base);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--color-copper);
        }
        .faq-item summary .faq-icon {
            width: 24px;
            height: 24px;
            background: var(--color-gold);
            color: var(--color-bg-darker);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
            transition: all var(--transition-base);
        }
        .faq-item[open] summary .faq-icon {
            background: var(--color-copper);
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px 56px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        /* Section: 订阅 CTA */
        .cta-box {
            background: linear-gradient(135deg, var(--color-bg-card-dark) 0%, #2A2520 70%, #3A2618 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            border: 1px solid rgba(201, 162, 75, 0.3);
            box-shadow: var(--shadow-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(201, 162, 75, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .cta-box p {
            font-size: 0.95rem;
            color: var(--color-text-light-muted);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            max-width: 500px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: rgba(245, 240, 230, 0.08);
            border: 1px solid rgba(201, 162, 75, 0.3);
            color: var(--color-text-light);
            font-size: 0.95rem;
            transition: all var(--transition-base);
        }
        .cta-form input::placeholder {
            color: var(--color-text-light-muted);
            opacity: 0.6;
        }
        .cta-form input:focus {
            border-color: var(--color-gold);
            box-shadow: 0 0 0 3px rgba(201, 162, 75, 0.15);
            background: rgba(245, 240, 230, 0.12);
        }
        .cta-form .btn {
            padding: 14px 28px;
            white-space: nowrap;
        }

        /* Section: 延伸阅读列表 */
        .read-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .read-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--color-bg-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .read-item:hover {
            border-color: rgba(201, 162, 75, 0.4);
            transform: translateX(4px);
            box-shadow: 0 6px 18px rgba(60, 40, 20, 0.12);
        }
        .read-item .read-dot {
            width: 8px;
            height: 8px;
            background: var(--color-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .read-item .read-content {
            flex: 1;
        }
        .read-item .read-title {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 4px;
        }
        .read-item .read-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* Section: 免责声明 */
        .disclaimer-box {
            background: rgba(201, 162, 75, 0.06);
            border: 1px solid rgba(201, 162, 75, 0.2);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            max-width: 900px;
            margin: 0 auto;
        }
        .disclaimer-box h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .disclaimer-box p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .disclaimer-box p:last-child {
            margin-bottom: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-darker);
            color: var(--color-text-light-muted);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(201, 162, 75, 0.2);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--color-text-light);
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            padding: 6px 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(201, 162, 75, 0.15);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
        }
        .footer-bottom .copyright {
            color: var(--color-text-light-muted);
        }
        .footer-bottom .footer-links a {
            color: var(--color-text-light-muted);
            margin-left: 16px;
            font-size: 0.78rem;
            transition: color var(--transition-base);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--color-gold);
        }
        .footer-beian {
            font-size: 0.75rem;
            color: #8A8177;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .stat-item:nth-child(4),
            .stat-item:nth-child(5) {
                display: none;
            }
            .cards-grid-3,
            .topics-grid,
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cards-grid-4,
            .steps-grid,
            .timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .timeline::before {
                display: none;
            }
            .timeline-item::before {
                display: none;
            }
            .timeline-item {
                padding-top: 0;
                text-align: left;
            }
            .insight-list {
                grid-template-columns: 1fr;
            }
            .read-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .site-header .container {
                height: 64px;
            }
            .mobile-menu {
                top: 64px;
            }
            .hero {
                min-height: auto;
                max-height: none;
                padding-top: 20px;
            }
            .hero .container {
                padding-top: 40px;
                padding-bottom: 60px;
            }
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
            .cards-grid-3,
            .topics-grid,
            .testimonial-grid,
            .cards-grid-4,
            .steps-grid,
            .timeline,
            .cards-grid-2 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .stat-item:nth-child(4),
            .stat-item:nth-child(5) {
                display: block;
            }
            .stat-number {
                font-size: 1.3rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links a {
                margin: 0 8px;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 1.1rem;
            }
            .stat-label {
                font-size: 0.72rem;
            }
            .hero-tag {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

        /* Smooth reveal on scroll */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
:root {
            --color-bg-dark: #1B1712;
            --color-bg-darker: #14100D;
            --color-bg-card-dark: #211D18;
            --color-gold: #C9A24B;
            --color-gold-hover: #B8933D;
            --color-copper: #C96F3B;
            --color-jade: #4A9E8E;
            --color-bg-light: #F5F0E6;
            --color-bg-light-alt: #F7F2E8;
            --color-text-dark: #2A2520;
            --color-text-muted: #6B6259;
            --color-border-light: #E0D8CC;
            --color-text-light: #F5F0E6;
            --color-text-light-muted: #C9BFAE;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 2px 12px rgba(60, 40, 20, 0.08);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition-base: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --container-pad: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.8;
            font-weight: 400;
            color: var(--color-text-dark);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold-hover);
        }
        button,
        input {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 16, 13, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 162, 75, 0.35);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.05em;
            user-select: none;
        }
        .logo-icon {
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 4s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.7; transform: scale(0.85); }
        }
        .logo span {
            color: var(--color-gold);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light-muted);
            letter-spacing: 0.02em;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-gold);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .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);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 16, 13, 0.98);
            z-index: 90;
            padding: 40px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light);
            padding: 6px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-gold);
        }
        .breadcrumb-section {
            background: var(--color-bg-light);
            padding: 20px 0 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }
        .breadcrumb-nav a {
            color: var(--color-text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-gold-hover);
        }
        .breadcrumb-nav .separator {
            color: var(--color-border-light);
        }
        .breadcrumb-nav .current {
            color: var(--color-gold);
            font-weight: 500;
        }
        .category-header {
            background: var(--color-bg-light);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .category-header h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-text-dark);
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }
        .category-header .category-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 780px;
            line-height: 1.9;
        }
        .stat-strip {
            background: var(--color-bg-dark);
            padding: 32px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
        }
        .stat-strip .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-strip .stat-item {
            text-align: center;
        }
        .stat-strip .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-gold);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
        }
        .stat-strip .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light-muted);
            margin-top: 4px;
        }
        .articles-section {
            background: var(--color-bg-light);
            padding: var(--spacing-section) 0;
        }
        .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 36px;
        }
        .section-heading .gold-bar {
            width: 4px;
            height: 28px;
            background: var(--color-gold);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .section-heading h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-text-dark);
            letter-spacing: 0.02em;
            margin: 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 162, 75, 0.4);
        }
        .article-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
            border-radius: 0;
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .article-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(27, 23, 18, 0.8);
            backdrop-filter: blur(6px);
            color: var(--color-gold);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .article-card .card-body {
            padding: 20px 20px 16px;
        }
        .article-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }
        .article-card .card-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .article-card .read-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-copper);
            transition: color var(--transition-base);
        }
        .article-card .read-link:hover {
            color: var(--color-gold-hover);
        }
        .featured-row {
            background: var(--color-bg-light-alt);
            padding: 48px 0;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-item {
            display: flex;
            gap: 16px;
            background: #fff;
            padding: 16px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
        }
        .featured-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 162, 75, 0.4);
            transform: translateY(-2px);
        }
        .featured-item .feat-img {
            width: 100px;
            height: 70px;
            border-radius: 6px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .featured-item .feat-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-item .feat-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-item .feat-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        .faq-section {
            background: var(--color-bg-light);
            padding: var(--spacing-section) 0;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(201, 162, 75, 0.4);
        }
        .faq-item details {
            padding: 0;
        }
        .faq-item summary {
            padding: 18px 20px;
            font-weight: 600;
            color: var(--color-text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            position: relative;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            font-size: 1.2rem;
            color: var(--color-gold);
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-item summary::after {
            content: '+';
            margin-left: auto;
            font-size: 1.3rem;
            color: var(--color-gold);
            font-weight: 400;
            transition: transform var(--transition-base);
        }
        .faq-item details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px 48px;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        .related-topics {
            background: var(--color-bg-dark);
            padding: var(--spacing-section) 0;
        }
        .related-topics .section-heading h2 {
            color: var(--color-text-light);
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--color-bg-card-dark);
            border: 1px solid rgba(201, 162, 75, 0.2);
            border-radius: var(--radius-lg);
            padding: 22px;
            transition: all var(--transition-smooth);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .topic-card:hover {
            border-color: rgba(201, 162, 75, 0.5);
            transform: translateY(-3px);
            box-shadow: var(--shadow-dark);
        }
        .topic-card .topic-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(201, 162, 75, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .topic-card .topic-info h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .topic-card .topic-info p {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            line-height: 1.6;
            margin: 0;
        }
        .topic-card a {
            color: inherit;
        }
        .topic-card a:hover {
            color: var(--color-gold);
        }
        .cta-section {
            background: var(--color-bg-light);
            padding: 48px 0 64px;
        }
        .cta-box {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            box-shadow: var(--shadow-dark);
        }
        .cta-box .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .cta-box .cta-text p {
            font-size: 0.95rem;
            color: var(--color-text-light-muted);
            margin: 0;
        }
        .cta-box .cta-form {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }
        .cta-box .cta-form input {
            background: rgba(245, 240, 230, 0.1);
            border: 1px solid rgba(201, 162, 75, 0.3);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            color: var(--color-text-light);
            width: 260px;
            transition: border-color var(--transition-base);
        }
        .cta-box .cta-form input::placeholder {
            color: var(--color-text-light-muted);
        }
        .cta-box .cta-form input:focus {
            border-color: var(--color-gold);
        }
        .btn-primary-gold {
            background: var(--color-gold);
            color: #1B1712;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            border: none;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
        }
        .btn-primary-gold:hover {
            background: var(--color-gold-hover);
            color: #1B1712;
            box-shadow: 0 0 20px rgba(201, 162, 75, 0.4);
        }
        .site-footer {
            background: var(--color-bg-darker);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(201, 162, 75, 0.25);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand .logo {
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-light-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }
        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-gold);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--color-text-light-muted);
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }
        .site-footer .footer-col a:hover {
            color: var(--color-gold);
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(245, 240, 230, 0.1);
            flex-wrap: wrap;
            gap: 12px;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }
        .site-footer .footer-links {
            display: flex;
            gap: 18px;
        }
        .site-footer .footer-links a {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }
        .site-footer .footer-links a:hover {
            color: var(--color-gold);
        }
        .site-footer .footer-beian {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid rgba(245, 240, 230, 0.08);
            font-size: 0.8rem;
            color: var(--color-text-light-muted);
            flex-wrap: wrap;
        }
        .site-footer .footer-beian span {
            color: var(--color-text-light-muted);
        }
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-strip .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .cta-box .cta-form {
                width: 100%;
                flex-direction: column;
                max-width: 380px;
            }
            .cta-box .cta-form input {
                width: 100%;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .category-header h1 {
                font-size: 2rem;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .stat-strip .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-strip .stat-number {
                font-size: 1.6rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-beian {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 1.7rem;
            }
            .category-header .category-desc {
                font-size: 0.95rem;
            }
            .stat-strip .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-strip .stat-number {
                font-size: 1.3rem;
            }
            .article-card .card-img {
                height: 160px;
            }
        }

/* roulang page: category1 */
:root{
  --color-bg-dark:#1B1712;
  --color-bg-darker:#14100D;
  --color-bg-card-dark:#211D18;
  --color-gold:#C9A24B;
  --color-gold-hover:#B8933D;
  --color-copper:#C96F3B;
  --color-jade:#4A9E8E;
  --color-bg-light:#F5F0E6;
  --color-bg-light-alt:#F7F2E8;
  --color-text-dark:#2A2520;
  --color-text-muted:#6B6259;
  --color-border-light:#E0D8CC;
  --color-text-light:#F5F0E6;
  --color-text-light-muted:#C9BFAE;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --radius-lg:12px;
  --radius-md:8px;
  --shadow-dark:0 4px 24px rgba(0,0,0,0.35);
  --shadow-light:0 2px 12px rgba(60,40,20,0.08);
  --shadow-hover:0 8px 32px rgba(0,0,0,0.45);
  --spacing-section:80px;
  --spacing-section-mobile:48px;
  --transition-base:0.25s ease;
  --transition-smooth:0.35s cubic-bezier(0.25,0.46,0.45,0.94);
  --container-max:1200px;
  --container-pad:24px;
}
html{
  scroll-behavior:smooth;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-size:16px;
}
body{
  font-family:var(--font-family);
  line-height:1.8;
  font-weight:400;
  color:var(--color-text-dark);
  background-color:var(--color-bg-light);
  overflow-x:hidden;
}
img{
  max-width:100%;
  height:auto;
  display:block;
  border-radius:var(--radius-md);
}
a{
  text-decoration:none;
  color:inherit;
  transition:color var(--transition-base);
}
a:hover{
  color:var(--color-gold);
}
button,input{
  font-family:var(--font-family);
  font-size:1rem;
  outline:none;
  border:none;
}
button{
  cursor:pointer;
  transition:all var(--transition-base);
}
.container{
  max-width:var(--container-max);
  margin:0 auto;
  padding:0 var(--container-pad);
}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(20,16,13,0.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(201,162,75,0.35);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.5rem;
  font-weight:700;
  color:var(--color-text-light);
  letter-spacing:0.05em;
  user-select:none;
}
.logo-icon{
  width:12px;
  height:12px;
  background:var(--color-gold);
  clip-path:polygon(50% 0%,100% 50%,50% 100%,0% 50%);
  display:inline-block;
  flex-shrink:0;
  animation:logoPulse 4s ease-in-out infinite;
}
.logo span{
  color:var(--color-gold);
}
@keyframes logoPulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:0.7;transform:scale(1.15);}
}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
}
.main-nav a{
  font-size:0.95rem;
  font-weight:500;
  color:var(--color-text-light-muted);
  letter-spacing:0.02em;
  position:relative;
  padding:4px 0;
  transition:color var(--transition-base);
}
.main-nav a::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;
  width:0;
  height:2px;
  background:var(--color-gold);
  transition:width var(--transition-smooth);
  border-radius:1px;
}
.main-nav a:hover,
.main-nav a.active{
  color:var(--color-gold);
}
.main-nav a:hover::after,
.main-nav a.active::after{
  width:100%;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  padding:8px;
  cursor:pointer;
  z-index:110;
}
.nav-toggle span{
  display:block;
  width:24px;
  height:2px;
  background:var(--color-gold);
  border-radius:2px;
  transition:all var(--transition-smooth);
  transform-origin:center;
}
.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);
}
.mobile-menu{
  display:none;
  position:fixed;
  top:72px;
  left:0;
  right:0;
  bottom:0;
  background:rgba(20,16,13,0.98);
  z-index:90;
  padding:40px 24px;
  flex-direction:column;
  gap:20px;
  overflow-y:auto;
}
.mobile-menu.open{
  display:flex;
}
.mobile-menu a{
  font-size:1.3rem;
  font-weight:600;
  color:var(--color-text-light-muted);
}
.mobile-menu a.active,
.mobile-menu a:hover{
  color:var(--color-gold);
}
/* Main base */
main{
  background:var(--color-bg-light);
}
section{
  padding:var(--spacing-section) 0;
}
.section-title{
  font-size:1.9rem;
  font-weight:700;
  color:var(--color-text-dark);
  margin-bottom:32px;
  position:relative;
  padding-left:18px;
}
.section-title::before{
  content:'';
  position:absolute;
  left:0;
  top:8px;
  bottom:8px;
  width:4px;
  background:var(--color-gold);
  border-radius:2px;
}
/* Page head */
.page-head{
  padding:64px 0 40px;
  background:var(--color-bg-light);
  border-bottom:1px solid var(--color-border-light);
}
.breadcrumb{
  list-style:none;
  display:flex;
  gap:8px;
  font-size:0.9rem;
  color:var(--color-text-muted);
  margin-bottom:16px;
  padding:0;
}
.breadcrumb li:not(:last-child)::after{
  content:'/';
  margin-left:8px;
  color:var(--color-border-light);
}
.breadcrumb a{
  color:var(--color-text-muted);
}
.breadcrumb a:hover{
  color:var(--color-gold);
}
.page-head h1{
  font-size:2.8rem;
  font-weight:700;
  color:var(--color-text-dark);
  margin:0 0 16px;
  letter-spacing:0.02em;
}
.page-head .lead{
  font-size:1.05rem;
  color:var(--color-text-muted);
  max-width:760px;
  line-height:1.9;
}
/* Stats bar */
.stats-bar{
  background:var(--color-bg-dark);
  color:var(--color-text-light);
  padding:48px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-item{
  text-align:center;
}
.stat-number{
  font-size:2.4rem;
  font-weight:700;
  color:var(--color-gold);
  font-variant-numeric:tabular-nums;
  letter-spacing:0.02em;
}
.stat-label{
  color:var(--color-text-light-muted);
  font-size:0.95rem;
  margin-top:4px;
}
/* Article list */
.article-list{
  background:var(--color-bg-light-alt);
}
.article-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.article-card{
  background:#fff;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform var(--transition-base),box-shadow var(--transition-base);
  display:flex;
  flex-direction:column;
}
.article-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.article-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--color-border-light);
}
.article-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform var(--transition-smooth);
}
.article-card:hover .article-thumb img{
  transform:scale(1.05);
}
.article-body{
  padding:20px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.article-tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:20px;
  font-size:0.8rem;
  background:rgba(201,162,75,0.15);
  color:var(--color-gold);
  font-weight:500;
  margin-bottom:12px;
  align-self:flex-start;
}
.article-title{
  font-size:1.2rem;
  font-weight:600;
  color:var(--color-text-dark);
  margin-bottom:8px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-desc{
  font-size:0.95rem;
  color:var(--color-text-muted);
  line-height:1.7;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.article-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:0.85rem;
  color:var(--color-text-muted);
}
.card-link{
  color:var(--color-gold);
  font-weight:500;
  font-size:0.9rem;
  transition:color var(--transition-base);
}
.card-link:hover{
  color:var(--color-gold-hover);
}
/* Hot picks */
.hot-picks{
  background:var(--color-bg-light);
}
.hot-picks .section-title{
  margin-bottom:24px;
}
.hot-list{
  list-style:none;
  padding:0;
  margin:0;
}
.hot-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px 0;
  border-bottom:1px solid var(--color-border-light);
  font-size:1rem;
}
.hot-item:last-child{
  border-bottom:none;
}
.hot-rank{
  font-size:1.3rem;
  font-weight:700;
  color:var(--color-gold);
  width:40px;
  flex-shrink:0;
  text-align:center;
}
.hot-title{
  font-weight:500;
  color:var(--color-text-dark);
}
.hot-title a:hover{
  color:var(--color-gold);
}
.hot-badge{
  font-size:0.8rem;
  color:var(--color-jade);
  border:1px solid rgba(74,158,142,0.4);
  padding:2px 10px;
  border-radius:20px;
  margin-left:auto;
  flex-shrink:0;
}
/* Focus week */
.focus-week{
  background:var(--color-bg-dark);
  color:var(--color-text-light);
}
.focus-week .section-title{
  color:var(--color-text-light);
}
.focus-scroll{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding-bottom:12px;
  scrollbar-width:thin;
  scrollbar-color:var(--color-gold) var(--color-bg-card-dark);
}
.focus-card{
  min-width:280px;
  max-width:300px;
  background:var(--color-bg-card-dark);
  border-radius:var(--radius-lg);
  padding:22px;
  color:inherit;
  box-shadow:var(--shadow-dark);
}
.focus-card h3{
  font-size:1.2rem;
  font-weight:600;
  color:var(--color-text-light);
  margin-bottom:10px;
}
.focus-card p{
  font-size:0.9rem;
  color:var(--color-text-light-muted);
  margin-bottom:16px;
}
.focus-tag{
  font-size:0.8rem;
  color:var(--color-copper);
  border:1px solid rgba(201,111,59,0.4);
  padding:2px 10px;
  border-radius:20px;
}
/* FAQ */
.faq{
  background:var(--color-bg-light-alt);
}
.faq-item{
  background:#fff;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-light);
  padding:20px 24px;
  margin-bottom:16px;
}
.faq-question{
  font-size:1.1rem;
  font-weight:600;
  color:var(--color-text-dark);
  margin-bottom:8px;
}
.faq-answer{
  color:var(--color-text-muted);
  line-height:1.8;
  margin:0;
}
/* CTA */
.cta{
  background:linear-gradient(135deg,rgba(27,23,18,0.98),rgba(33,29,24,0.98));
  color:var(--color-text-light);
  padding:72px 0;
  text-align:center;
}
.cta-title{
  font-size:2rem;
  font-weight:700;
  margin-bottom:12px;
}
.cta-sub{
  color:var(--color-text-light-muted);
  margin-bottom:28px;
  font-size:1.05rem;
}
.cta-form{
  display:flex;
  gap:12px;
  max-width:480px;
  margin:0 auto;
  flex-wrap:wrap;
  justify-content:center;
}
.cta-form input{
  flex:1 1 240px;
  padding:12px 16px;
  border-radius:var(--radius-md);
  border:1px solid var(--color-border-light);
  background:var(--color-bg-light);
  color:var(--color-text-dark);
}
.cta-form input:focus{
  border-color:var(--color-gold);
  box-shadow:0 0 0 3px rgba(201,162,75,0.2);
}
.cta-form button{
  padding:12px 28px;
  background:var(--color-gold);
  color:var(--color-text-dark);
  border-radius:var(--radius-md);
  font-weight:600;
  border:none;
}
.cta-form button:hover{
  background:var(--color-gold-hover);
  box-shadow:0 4px 14px rgba(201,162,75,0.4);
}
/* Related topics */
.related-topics{
  background:var(--color-bg-light);
}
.topic-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.topic-card{
  display:block;
  background:#fff;
  border-radius:var(--radius-lg);
  padding:28px 20px;
  box-shadow:var(--shadow-light);
  transition:transform var(--transition-base),box-shadow var(--transition-base);
  text-align:center;
  color:var(--color-text-dark);
}
.topic-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  color:var(--color-gold);
}
.topic-card h3{
  font-size:1.2rem;
  font-weight:600;
  margin-bottom:8px;
}
.topic-card p{
  font-size:0.9rem;
  color:var(--color-text-muted);
  margin:0;
}
/* Footer */
.site-footer{
  background:var(--color-bg-darker);
  color:var(--color-text-light-muted);
  padding:56px 0 32px;
  border-top:1px solid rgba(201,162,75,0.2);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  margin-bottom:40px;
}
.footer-brand .logo{
  margin-bottom:16px;
}
.footer-brand p{
  font-size:0.95rem;
  color:var(--color-text-light-muted);
  max-width:280px;
}
.footer-col h4{
  font-size:1rem;
  font-weight:600;
  color:var(--color-text-light);
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  font-size:0.9rem;
  color:var(--color-text-light-muted);
  padding:6px 0;
}
.footer-col a:hover{
  color:var(--color-gold);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  justify-content:space-between;
  align-items:center;
  padding-top:24px;
  border-top:1px solid rgba(201,162,75,0.15);
}
.copyright{
  font-size:0.9rem;
}
.footer-links{
  display:flex;
  gap:16px;
}
.footer-links a{
  color:var(--color-text-light-muted);
  font-size:0.9rem;
}
.footer-links a:hover{
  color:var(--color-gold);
}
.footer-beian{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:20px;
  font-size:0.8rem;
  color:var(--color-text-light-muted);
  opacity:0.8;
}
/* Responsive */
@media(max-width:1024px){
  .article-grid{grid-template-columns:repeat(2,1fr);}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:768px){
  .nav-toggle{display:flex;}
  .main-nav{display:none;}
  section{padding:var(--spacing-section-mobile) 0;}
  .page-head{padding:48px 0 32px;}
  .page-head h1{font-size:2.2rem;}
  .section-title{font-size:1.6rem;padding-left:14px;}
  .article-grid{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .hot-item{flex-wrap:wrap;}
  .hot-badge{margin-left:0;width:100%;text-align:left;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .cta-title{font-size:1.6rem;}
}
@media(max-width:520px){
  .container{padding:0 16px;}
  .page-head h1{font-size:1.8rem;}
  .stats-grid{grid-template-columns:1fr;}
  .cta-form input{flex:1 1 100%;}
  .cta-form button{flex:1 1 100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root {
            --color-bg-dark: #1B1712;
            --color-bg-darker: #14100D;
            --color-bg-card-dark: #211D18;
            --color-gold: #C9A24B;
            --color-gold-hover: #B8933D;
            --color-copper: #C96F3B;
            --color-jade: #4A9E8E;
            --color-bg-light: #F5F0E6;
            --color-bg-light-alt: #F7F2E8;
            --color-text-dark: #2A2520;
            --color-text-muted: #6B6259;
            --color-border-light: #E0D8CC;
            --color-text-light: #F5F0E6;
            --color-text-light-muted: #C9BFAE;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 2px 12px rgba(60, 40, 20, 0.08);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition-base: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --container-pad: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.8;
            font-weight: 400;
            color: var(--color-text-dark);
            background-color: var(--color-bg-light);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        button,
        input {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 16, 13, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 162, 75, 0.35);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.05em;
            user-select: none;
        }
        .logo-icon {
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 4s ease-in-out infinite;
        }
        .logo span {
            color: var(--color-gold);
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light-muted);
            letter-spacing: 0.02em;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-gold);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .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);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 16, 13, 0.98);
            z-index: 90;
            padding: 40px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light);
            padding: 8px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-gold);
        }
        /* Page header */
        .page-header {
            background: var(--color-bg-light);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-gold);
        }
        .breadcrumb .separator {
            color: var(--color-border-light);
        }
        .breadcrumb .current {
            color: var(--color-gold);
            font-weight: 500;
        }
        .page-header h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-text-dark);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }
        .page-header .subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 700px;
            line-height: 1.8;
        }
        /* Section common */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--color-bg-light-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-copper);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            position: relative;
            padding-left: 14px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .section-dark .section-title {
            color: var(--color-text-light);
        }
        .section-desc {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            max-width: 600px;
            margin-bottom: 32px;
        }
        .section-dark .section-desc {
            color: var(--color-text-light-muted);
        }
        /* Stats bar */
        .stats-bar {
            background: var(--color-bg-dark);
            padding: 32px 0;
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            flex: 1;
            min-width: 130px;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-gold);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            display: block;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            margin-top: 4px;
        }
        /* Article cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .article-card .card-img {
            aspect-ratio: 16 / 9;
            width: 100%;
            background: var(--color-bg-light-alt);
            overflow: hidden;
            position: relative;
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .article-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-copper);
            background: rgba(201, 111, 59, 0.1);
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .article-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }
        .article-card .card-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-variant-numeric: tabular-nums;
        }
        .article-card .card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-gold);
            transition: color var(--transition-base);
        }
        .article-card .card-link:hover {
            color: var(--color-gold-hover);
        }
        /* Featured list */
        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .featured-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-base);
            border-left: 3px solid var(--color-gold);
        }
        .featured-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .featured-item .featured-num {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-gold);
            min-width: 36px;
            text-align: center;
            font-variant-numeric: tabular-nums;
        }
        .featured-item .featured-text {
            flex: 1;
        }
        .featured-item .featured-text h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-dark);
            margin-bottom: 2px;
        }
        .featured-item .featured-text p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin: 0;
        }
        .featured-item .featured-arrow {
            font-size: 1.2rem;
            color: var(--color-gold);
            transition: transform var(--transition-base);
        }
        .featured-item:hover .featured-arrow {
            transform: translateX(4px);
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--color-bg-card-dark);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            color: var(--color-text-light);
            transition: all var(--transition-smooth);
            border: 1px solid rgba(201, 162, 75, 0.2);
        }
        .step-card:hover {
            border-color: var(--color-gold);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-gold);
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }
        .step-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .step-desc {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
            line-height: 1.7;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-light);
            border-left: 3px solid var(--color-gold);
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item .faq-q {
            font-weight: 600;
            color: var(--color-text-dark);
            font-size: 1rem;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item .faq-q .faq-icon {
            color: var(--color-gold);
            font-size: 1.1rem;
            font-weight: 700;
        }
        .faq-item .faq-a {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            padding-left: 26px;
        }
        /* CTA */
        .cta-box {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: var(--color-text-light);
            border: 1px solid rgba(201, 162, 75, 0.3);
            box-shadow: var(--shadow-dark);
        }
        .cta-box h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .cta-box p {
            color: var(--color-text-light-muted);
            font-size: 0.95rem;
            margin-bottom: 24px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 250px;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            font-size: 0.95rem;
            border: 2px solid transparent;
            transition: border-color var(--transition-base);
        }
        .cta-form input:focus {
            border-color: var(--color-gold);
            outline: none;
        }
        .cta-form input::placeholder {
            color: var(--color-text-muted);
        }
        .btn-primary {
            background: var(--color-gold);
            color: var(--color-text-dark);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--color-gold);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background: var(--color-gold-hover);
            border-color: var(--color-gold-hover);
            box-shadow: 0 0 20px rgba(201, 162, 75, 0.4);
            color: var(--color-text-dark);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-gold);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--color-gold);
            transition: all var(--transition-base);
        }
        .btn-outline:hover {
            background: rgba(201, 162, 75, 0.1);
            box-shadow: 0 0 20px rgba(201, 162, 75, 0.25);
            color: var(--color-gold);
        }
        /* Topic chips */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--color-gold);
        }
        .topic-card .topic-icon {
            font-size: 1.6rem;
            color: var(--color-gold);
            flex-shrink: 0;
        }
        .topic-card .topic-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-dark);
            margin-bottom: 2px;
        }
        .topic-card .topic-info p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin: 0;
        }
        .view-more-row {
            text-align: center;
            margin-top: 28px;
        }
        /* Footer */
        .site-footer {
            background: var(--color-bg-darker);
            color: var(--color-text-light-muted);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(201, 162, 75, 0.25);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--color-text-light);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.8;
            color: var(--color-text-light-muted);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--color-text-light-muted);
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(201, 162, 75, 0.2);
        }
        .footer-bottom .copyright {
            font-size: 0.82rem;
            color: var(--color-text-light-muted);
        }
        .footer-links {
            display: flex;
            gap: 18px;
        }
        .footer-links a {
            font-size: 0.82rem;
            color: var(--color-text-light-muted);
        }
        .footer-links a:hover {
            color: var(--color-gold);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 16px;
            padding-top: 12px;
            border-top: 1px solid rgba(201, 162, 75, 0.15);
            font-size: 0.78rem;
            color: var(--color-text-light-muted);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .page-header h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .cta-box {
                padding: 32px 24px;
            }
        }
        @media (max-width: 520px) {
            .site-header .container {
                height: 60px;
            }
            .mobile-menu {
                top: 60px;
            }
            .stats-bar {
                padding: 24px 0;
                gap: 16px;
            }
            .stat-item {
                min-width: 100px;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-form .btn-primary {
                width: 100%;
            }
        }

/* roulang page: category4 */
:root {
            --color-bg-dark: #1B1712;
            --color-bg-darker: #14100D;
            --color-bg-card-dark: #211D18;
            --color-gold: #C9A24B;
            --color-gold-hover: #B8933D;
            --color-copper: #C96F3B;
            --color-jade: #4A9E8E;
            --color-bg-light: #F5F0E6;
            --color-bg-light-alt: #F7F2E8;
            --color-text-dark: #2A2520;
            --color-text-muted: #6B6259;
            --color-border-light: #E0D8CC;
            --color-text-light: #F5F0E6;
            --color-text-light-muted: #C9BFAE;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 2px 12px rgba(60, 40, 20, 0.08);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition-base: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --container-pad: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.8;
            font-weight: 400;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        button,
        input {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 16, 13, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 162, 75, 0.35);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.05em;
            user-select: none;
        }
        .logo-icon {
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 4s ease-in-out infinite;
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.7; transform: scale(0.85); }
        }
        .logo span {
            color: var(--color-gold);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light-muted);
            letter-spacing: 0.02em;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-gold);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .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);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 16, 13, 0.98);
            z-index: 90;
            padding: 40px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light-muted);
            padding: 8px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-gold);
        }
        .breadcrumb-section {
            background: var(--color-bg-light);
            padding: 32px 0 16px;
        }
        .breadcrumb-nav {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--color-gold);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-gold-hover);
            text-decoration: underline;
        }
        .breadcrumb-nav .separator {
            color: var(--color-border-light);
            user-select: none;
        }
        .page-banner {
            background: var(--color-bg-light);
            padding: 40px 0 56px;
        }
        .page-banner .container {
            max-width: var(--container-max);
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-text-dark);
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }
        .page-banner h1::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 72px;
            height: 4px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.9;
            margin-top: 20px;
        }
        .stats-strip {
            background: var(--color-bg-dark);
            padding: 48px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
        }
        .stats-strip .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
            padding: 12px 0;
        }
        .stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-gold);
            font-variant-numeric: tabular-nums;
            display: block;
            line-height: 1.3;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light-muted);
            margin-top: 8px;
            letter-spacing: 0.04em;
        }
        .timeline-section {
            background: var(--color-bg-light);
            padding: 72px 0;
        }
        .section-header {
            margin-bottom: 48px;
            text-align: center;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-text-dark);
            display: inline-block;
            position: relative;
            padding-bottom: 12px;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 56px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .section-header .section-sub {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin-top: 12px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .timeline-wrap {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            padding-left: 32px;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-gold);
            opacity: 0.4;
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 32px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -29px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--color-gold);
            border-radius: 50%;
            border: 3px solid var(--color-bg-light);
            box-shadow: 0 0 0 2px var(--color-gold);
        }
        .timeline-item .timeline-date {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-copper);
            letter-spacing: 0.06em;
            display: block;
            margin-bottom: 6px;
        }
        .timeline-item .timeline-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }
        .timeline-item .timeline-desc {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        .articles-section {
            background: var(--color-bg-light-alt);
            padding: 72px 0;
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .article-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--color-bg-card-dark);
        }
        .article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .article-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-tag {
            display: inline-block;
            background: rgba(201, 162, 75, 0.12);
            color: var(--color-gold-hover);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .article-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .article-card .card-meta a {
            color: var(--color-gold);
            font-weight: 600;
        }
        .article-card .card-meta a:hover {
            color: var(--color-gold-hover);
            text-decoration: underline;
        }
        .featured-section {
            background: var(--color-bg-dark);
            padding: 64px 0;
        }
        .featured-section .section-header h2 {
            color: var(--color-text-light);
        }
        .featured-section .section-header .section-sub {
            color: var(--color-text-light-muted);
        }
        .featured-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            max-width: 900px;
            margin: 0 auto;
        }
        .featured-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--color-bg-card-dark);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-gold);
            transition: all var(--transition-base);
        }
        .featured-item:hover {
            background: rgba(201, 162, 75, 0.08);
            transform: translateX(4px);
        }
        .featured-item .fc-icon {
            width: 8px;
            height: 8px;
            background: var(--color-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .featured-item .fc-text {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .featured-item .fc-text a {
            color: var(--color-text-light);
        }
        .featured-item .fc-text a:hover {
            color: var(--color-gold);
        }
        .faq-section {
            background: var(--color-bg-light);
            padding: 72px 0;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: var(--shadow-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: 0 4px 16px rgba(60, 40, 20, 0.12);
        }
        .faq-item details {
            padding: 0;
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-dark);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background: rgba(201, 162, 75, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-gold);
            font-weight: 700;
            font-size: 1.1rem;
            transition: transform var(--transition-base);
        }
        .faq-item details[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
            margin: 0 24px 20px;
        }
        .cta-section {
            background: var(--color-bg-dark);
            padding: 64px 0;
            border-top: 1px solid rgba(201, 162, 75, 0.25);
        }
        .cta-box {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-box h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 0.95rem;
            color: var(--color-text-light-muted);
            margin-bottom: 24px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            background: rgba(245, 240, 230, 0.06);
            border: 1px solid rgba(201, 162, 75, 0.35);
            color: var(--color-text-light);
            font-size: 0.95rem;
            transition: all var(--transition-base);
        }
        .cta-form input::placeholder {
            color: rgba(201, 191, 174, 0.6);
        }
        .cta-form input:focus {
            border-color: var(--color-gold);
            background: rgba(245, 240, 230, 0.1);
            box-shadow: 0 0 0 3px rgba(201, 162, 75, 0.15);
        }
        .cta-form button {
            padding: 12px 28px;
            border-radius: var(--radius-md);
            background: var(--color-gold);
            color: var(--color-bg-dark);
            font-weight: 700;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .cta-form button:hover {
            background: var(--color-gold-hover);
            box-shadow: 0 4px 16px rgba(201, 162, 75, 0.35);
        }
        .related-section {
            background: var(--color-bg-light-alt);
            padding: 64px 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .related-card:hover {
            border-color: var(--color-gold);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(60, 40, 20, 0.12);
        }
        .related-card .rc-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }
        .related-card .rc-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }
        .related-card a {
            display: block;
            height: 100%;
        }
        .related-card a:hover .rc-title {
            color: var(--color-gold-hover);
        }
        .site-footer {
            background: var(--color-bg-darker);
            padding: 56px 0 24px;
            border-top: 1px solid rgba(201, 162, 75, 0.25);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-light-muted);
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--color-text-light-muted);
            margin-bottom: 10px;
            transition: all var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(201, 162, 75, 0.18);
        }
        .footer-bottom .copyright {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }
        .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }
        .footer-links a:hover {
            color: var(--color-gold);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 16px;
            font-size: 0.78rem;
            color: rgba(201, 191, 174, 0.55);
        }
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-list {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .stats-strip .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-desc {
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .footer-beian {
                justify-content: center;
            }
            .timeline-wrap {
                padding-left: 20px;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .timeline-item::before {
                left: -19px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .stat-item .stat-number {
                font-size: 1.4rem;
            }
            .featured-item {
                padding: 12px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --color-bg-dark: #1B1712;
            --color-bg-darker: #14100D;
            --color-bg-card-dark: #211D18;
            --color-gold: #C9A24B;
            --color-gold-hover: #B8933D;
            --color-copper: #C96F3B;
            --color-jade: #4A9E8E;
            --color-bg-light: #F5F0E6;
            --color-bg-light-alt: #F7F2E8;
            --color-text-dark: #2A2520;
            --color-text-muted: #6B6259;
            --color-border-light: #E0D8CC;
            --color-text-light: #F5F0E6;
            --color-text-light-muted: #C9BFAE;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-dark: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-light: 0 2px 12px rgba(60, 40, 20, 0.08);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.45);
            --spacing-section: 80px;
            --spacing-section-mobile: 48px;
            --transition-base: 0.25s ease;
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --container-pad: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.8;
            font-weight: 400;
            color: var(--color-text-dark);
            background-color: var(--color-bg-dark);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        button,
        input {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 16, 13, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(201, 162, 75, 0.35);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.05em;
            user-select: none;
        }
        .logo-icon {
            width: 12px;
            height: 12px;
            background: var(--color-gold);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
            display: inline-block;
            flex-shrink: 0;
            animation: logoPulse 4s ease-in-out infinite;
        }
        .logo span {
            color: var(--color-gold);
        }
        @keyframes logoPulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.75; transform: scale(1.08); }
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light-muted);
            letter-spacing: 0.02em;
            position: relative;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width var(--transition-smooth);
            border-radius: 1px;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-gold);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 110;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .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);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 16, 13, 0.98);
            z-index: 90;
            padding: 40px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light-muted);
            padding: 12px 0;
            border-bottom: 1px solid rgba(201, 162, 75, 0.2);
            transition: color var(--transition-base);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-gold);
        }
        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--color-bg-light);
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-gold);
        }
        .breadcrumb .separator {
            color: var(--color-border-light);
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--color-text-dark);
            font-weight: 600;
        }
        /* Category H1 Section */
        .category-hero {
            background: var(--color-bg-light);
            padding: 64px 0 56px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-text-dark);
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }
        .category-hero .category-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.9;
        }
        /* Section common */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-dark {
            background: var(--color-bg-dark);
        }
        .section-darker {
            background: var(--color-bg-darker);
        }
        .section-light {
            background: var(--color-bg-light);
        }
        .section-light-alt {
            background: var(--color-bg-light-alt);
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 12px;
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .section-dark .section-title,
        .section-darker .section-title {
            color: var(--color-text-light);
        }
        .section-desc {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 640px;
            margin-bottom: 32px;
        }
        .section-dark .section-desc,
        .section-darker .section-desc {
            color: var(--color-text-light-muted);
        }
        /* Stats bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 20px;
            background: var(--color-bg-card-dark);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(201, 162, 75, 0.2);
            transition: all var(--transition-smooth);
        }
        .stat-item:hover {
            border-color: var(--color-gold);
            box-shadow: var(--shadow-dark);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-gold);
            font-variant-numeric: tabular-nums;
            display: block;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.92rem;
            color: var(--color-text-light-muted);
        }
        /* Membership plans */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .plan-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .plan-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-light);
            border-color: var(--color-gold);
        }
        .plan-card.featured {
            border-color: var(--color-gold);
            box-shadow: var(--shadow-light);
            background: #fffcf5;
        }
        .plan-card .plan-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--color-gold);
            color: var(--color-text-dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }
        .plan-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }
        .plan-tag {
            font-size: 0.85rem;
            color: var(--color-copper);
            font-weight: 600;
            margin-bottom: 16px;
        }
        .plan-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .plan-features li {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            border-bottom: 1px solid rgba(224, 216, 204, 0.5);
        }
        .plan-features li:last-child {
            border-bottom: none;
        }
        .plan-features li::before {
            content: '◆';
            color: var(--color-gold);
            font-size: 0.7rem;
            flex-shrink: 0;
            margin-top: 4px;
        }
        .plan-btn {
            display: inline-block;
            background: var(--color-gold);
            color: var(--color-text-dark);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            transition: all var(--transition-base);
            text-align: center;
            width: 100%;
        }
        .plan-btn:hover {
            background: var(--color-gold-hover);
            color: var(--color-text-dark);
            box-shadow: 0 4px 16px rgba(201, 162, 75, 0.35);
        }
        /* Article cards */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .article-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
        }
        .article-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .card-tag {
            display: inline-block;
            background: rgba(201, 162, 75, 0.15);
            color: #8a6d32;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .article-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 12px;
        }
        .article-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .article-card .card-link {
            color: var(--color-copper);
            font-weight: 600;
            transition: color var(--transition-base);
        }
        .article-card .card-link:hover {
            color: var(--color-gold);
        }
        /* Hot list */
        .hot-list {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-light);
        }
        .hot-list h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 16px;
            padding-left: 12px;
            border-left: 4px solid var(--color-gold);
        }
        .hot-list ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-dark);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .hot-list a:hover {
            color: var(--color-gold);
        }
        .hot-list .hot-num {
            width: 26px;
            height: 26px;
            background: var(--color-gold);
            color: var(--color-text-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .hot-list .hot-num.n2 {
            background: var(--color-copper);
            color: #fff;
        }
        .hot-list .hot-num.n3 {
            background: var(--color-jade);
            color: #fff;
        }
        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-gold);
            box-shadow: var(--shadow-light);
        }
        .faq-item summary {
            cursor: pointer;
            padding: 18px 20px;
            font-weight: 600;
            color: var(--color-text-dark);
            font-size: 1rem;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-base);
        }
        .faq-item summary:hover {
            color: var(--color-gold);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--color-gold);
            transition: transform var(--transition-base);
        }
        .faq-item[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            color: var(--color-text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        /* CTA */
        .cta-section {
            background: var(--color-bg-darker);
            padding: 64px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--color-text-light-muted);
            font-size: 1rem;
            margin-bottom: 28px;
        }
        .cta-form {
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(201, 162, 75, 0.3);
            color: var(--color-text-light);
            font-size: 0.95rem;
            transition: border-color var(--transition-base);
        }
        .cta-form input::placeholder {
            color: rgba(245, 240, 230, 0.5);
        }
        .cta-form input:focus {
            border-color: var(--color-gold);
        }
        .cta-form button {
            padding: 14px 28px;
            background: var(--color-gold);
            color: var(--color-text-dark);
            font-weight: 700;
            border-radius: var(--radius-md);
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .cta-form button:hover {
            background: var(--color-gold-hover);
            box-shadow: 0 4px 20px rgba(201, 162, 75, 0.4);
            transform: translateY(-2px);
        }
        /* Related topics */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: block;
        }
        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            color: var(--color-text-dark);
        }
        .topic-card .topic-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
        }
        .topic-card .topic-body {
            padding: 16px 20px 20px;
        }
        .topic-card .topic-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }
        .topic-card .topic-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }
        /* Footer */
        .site-footer {
            background: var(--color-bg-darker);
            color: var(--color-text-light-muted);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(201, 162, 75, 0.25);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--color-text-light-muted);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            color: var(--color-text-light-muted);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(201, 162, 75, 0.2);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copyright {
            font-size: 0.85rem;
        }
        .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--color-text-light-muted);
        }
        .footer-links a:hover {
            color: var(--color-gold);
        }
        .footer-beian {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            font-size: 0.8rem;
            color: rgba(201, 191, 174, 0.7);
            flex-wrap: wrap;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .plans-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .plans-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-form input,
            .cta-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .footer-beian {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.35rem;
                padding-left: 12px;
            }
            .section-title::before {
                height: 22px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}