/* roulang page: index */
:root {
            --brand-accent: #ec3d88;
            --brand-accent-hover: #d9266d;
            --brand-gold: #f0c060;
            --brand-dark: #0f0f1a;
            --brand-surface: #1a1a2e;
            --brand-card: #1e1e35;
            --brand-muted: #9ca3af;
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.08);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.16);
            --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            line-height: 1.7;
            color: #f1f5f9;
            background-color: #0f0f1a;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-smooth);
        }
        a:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 6px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 3px;
            border-radius: 8px;
        }
        input {
            font-family: inherit;
        }
        input:focus-visible {
            outline: 2px solid var(--brand-accent);
            outline-offset: 2px;
        }

        .container-site {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 768px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-site {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
            background: rgba(15, 15, 26, 0.97);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-smooth);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #ec3d88, #d9266d);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-links-desktop {
            display: none;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        @media (min-width: 1024px) {
            .nav-links-desktop {
                display: flex;
            }
        }
        .nav-links-desktop li a {
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #cbd5e1;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .nav-links-desktop li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links-desktop li a.nav-active {
            color: #ffffff;
            background: rgba(236, 61, 136, 0.15);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            display: none;
            position: relative;
        }
        @media (min-width: 768px) {
            .nav-search-wrap {
                display: block;
            }
        }
        .nav-search-input {
            width: 200px;
            height: 38px;
            padding: 0 2.5rem 0 1rem;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
            color: #f1f5f9;
            font-size: 0.875rem;
            transition: all var(--transition-smooth);
        }
        .nav-search-input::placeholder {
            color: #94a3b8;
        }
        .nav-search-input:focus {
            width: 260px;
            border-color: var(--brand-accent);
            background: rgba(255, 255, 255, 0.08);
            outline: none;
            box-shadow: 0 0 0 3px rgba(236, 61, 136, 0.1);
        }
        .nav-search-icon {
            position: absolute;
            right: 0.9rem;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 0.85rem;
            pointer-events: none;
        }
        .btn-nav-login {
            display: none;
            padding: 0.45rem 1.2rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            color: #f1f5f9;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        @media (min-width: 768px) {
            .btn-nav-login {
                display: inline-flex;
            }
        }
        .btn-nav-login:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.35);
        }
        .btn-nav-cta {
            padding: 0.45rem 1.3rem;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--brand-accent);
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 12px rgba(236, 61, 136, 0.3);
        }
        .btn-nav-cta:hover {
            background: var(--brand-accent-hover);
            box-shadow: 0 4px 20px rgba(236, 61, 136, 0.45);
            transform: translateY(-1px);
        }
        .btn-nav-cta:active {
            transform: translateY(0);
        }
        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            color: #f1f5f9;
            font-size: 1.3rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition-smooth);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }
        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(15, 15, 26, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 1.5rem;
            flex-direction: column;
            gap: 0.5rem;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        @media (min-width: 1024px) {
            .mobile-menu-panel.open {
                display: none;
            }
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.85rem 1.25rem;
            border-radius: 12px;
            font-size: 1.05rem;
            font-weight: 500;
            color: #cbd5e1;
            transition: all var(--transition-smooth);
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.nav-active {
            color: #ffffff;
            background: rgba(236, 61, 136, 0.15);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, rgba(15, 15, 26, 0.55) 0%, rgba(15, 15, 26, 0.82) 60%, #0f0f1a 100%), url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .hero-section {
                min-height: 620px;
            }
        }
        @media (min-width: 1024px) {
            .hero-section {
                min-height: 700px;
            }
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(236, 61, 136, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-block;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #f0c060;
            background: rgba(240, 192, 96, 0.1);
            border: 1px solid rgba(240, 192, 96, 0.25);
            margin-bottom: 1.25rem;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .hero-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.6rem;
            }
        }
        .hero-title span {
            background: linear-gradient(135deg, #ec3d88, #f0c060);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: #cbd5e1;
            line-height: 1.75;
            margin-bottom: 2rem;
            max-width: 600px;
        }
        @media (min-width: 768px) {
            .hero-desc {
                font-size: 1.1rem;
            }
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.8rem;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--brand-accent);
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(236, 61, 136, 0.35);
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background: var(--brand-accent-hover);
            box-shadow: 0 6px 28px rgba(236, 61, 136, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.8rem;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #f1f5f9;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        /* Section共通 */
        .section-pad {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--brand-accent);
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.75rem;
            letter-spacing: 0.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.1rem;
            }
        }
        .section-subtitle {
            font-size: 1rem;
            color: #94a3b8;
            max-width: 560px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 3.5rem;
            }
        }

        /* 统计卡片 */
        .stat-card {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-2xl);
            padding: 1.75rem 1.5rem;
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            line-height: 1;
            margin-bottom: 0.4rem;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.8rem;
            }
        }
        .stat-number .stat-suffix {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--brand-accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: #94a3b8;
            font-weight: 500;
        }

        /* 优势卡片 */
        .advantage-card {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .advantage-card:hover {
            border-color: rgba(236, 61, 136, 0.35);
            box-shadow: 0 8px 36px rgba(236, 61, 136, 0.08);
            transform: translateY(-4px);
        }
        .advantage-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(236, 61, 136, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--brand-accent);
            flex-shrink: 0;
        }
        .advantage-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0;
        }
        .advantage-card p {
            font-size: 0.9rem;
            color: #94a3b8;
            margin: 0;
            line-height: 1.65;
        }

        /* 品牌故事 */
        .story-image-wrap {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            position: relative;
        }
        .story-image-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .story-image-wrap:hover img {
            transform: scale(1.03);
        }

        /* 赛事卡片 */
        .event-card {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .event-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }
        .event-card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .event-card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #f0c060;
            background: rgba(240, 192, 96, 0.1);
            border: 1px solid rgba(240, 192, 96, 0.2);
            width: fit-content;
        }
        .event-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0;
            line-height: 1.4;
        }
        .event-card p {
            font-size: 0.85rem;
            color: #94a3b8;
            margin: 0;
            line-height: 1.6;
        }

        /* 合作伙伴 */
        .partner-item {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 1.5rem 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-smooth);
            min-height: 80px;
            color: #94a3b8;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.04em;
        }
        .partner-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
            color: #cbd5e1;
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        /* 评价卡片 */
        .review-card {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-2xl);
            padding: 1.75rem;
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .review-card:hover {
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .review-stars {
            color: #f0c060;
            font-size: 0.9rem;
            letter-spacing: 0.15em;
        }
        .review-text {
            font-size: 0.9rem;
            color: #cbd5e1;
            line-height: 1.7;
            flex: 1;
            font-style: italic;
        }
        .review-author {
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffffff;
        }
        .review-role {
            font-size: 0.78rem;
            color: #94a3b8;
        }

        /* FAQ */
        .faq-item {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.15);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.15rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition-smooth);
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: #ffffff;
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: #94a3b8;
            transition: transform var(--transition-smooth);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: #94a3b8;
            line-height: 1.75;
        }

        /* 新闻卡片 */
        .news-card {
            background: var(--brand-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: rgba(255, 255, 255, 0.18);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .news-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .news-card-body {
            padding: 1.1rem 1.25rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .news-card-date {
            font-size: 0.78rem;
            color: #94a3b8;
            font-weight: 500;
        }
        .news-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0;
            line-height: 1.45;
        }
        .news-card p {
            font-size: 0.85rem;
            color: #94a3b8;
            margin: 0;
            line-height: 1.6;
            flex: 1;
        }
        .news-card .btn-read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-accent);
            transition: color var(--transition-smooth);
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .news-card .btn-read-more:hover {
            color: #f56ea7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(236, 61, 136, 0.1) 0%, rgba(15, 15, 26, 0.95) 50%, rgba(240, 192, 96, 0.06) 100%), url('assets/images/backpic/back-3.webp') center/cover no-repeat;
            border-radius: var(--radius-2xl);
            padding: 3rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 4rem 2rem;
            }
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(236, 61, 136, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section>* {
            position: relative;
            z-index: 2;
        }

        /* Footer */
        .site-footer {
            background: #0a0a14;
            border-top: 1px solid var(--border-subtle);
            padding-top: 3rem;
            padding-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding-top: 4rem;
                padding-bottom: 2.5rem;
            }
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: #94a3b8;
            transition: color var(--transition-smooth);
        }
        .footer-links a:hover {
            color: #f1f5f9;
        }
        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.82rem;
            color: #64748b;
            text-align: center;
        }

/* roulang page: category1 */
:root {
            --primary: #7c3aed;
            --primary-hover: #6d28d9;
            --primary-light: #ede9fe;
            --primary-dark: #5b21b6;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --text-inverse: #ffffff;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.7;
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        .container-site {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 700;
            font-size: 1.28rem;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1rem;
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links-desktop a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-links-desktop a.nav-active {
            color: #ffffff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
        }
        .nav-links-desktop a.nav-active:hover {
            background: var(--primary-hover);
            color: #ffffff;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search-input {
            width: 200px;
            height: 38px;
            padding: 0 36px 0 16px;
            border: 1.5px solid var(--border-medium);
            border-radius: 24px;
            font-size: 0.85rem;
            color: var(--text-main);
            background: var(--bg-body);
            outline: none;
            transition: all var(--transition-fast);
        }
        .nav-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.08);
            width: 230px;
        }
        .nav-search-icon {
            position: absolute;
            right: 13px;
            color: var(--text-muted);
            font-size: 0.85rem;
            pointer-events: none;
        }
        .btn-nav-login {
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-main);
            background: transparent;
            border: 1.5px solid var(--border-medium);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .btn-nav-cta {
            padding: 9px 22px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(124, 58, 237, 0.25);
        }
        .btn-nav-cta:hover {
            box-shadow: 0 4px 18px rgba(124, 58, 237, 0.4);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.35rem;
            color: var(--text-main);
            padding: 6px 8px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--bg-body);
        }
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 62px;
            left: 0;
            right: 0;
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
            padding: 16px 24px;
            box-shadow: var(--shadow-lg);
            flex-direction: column;
            gap: 4px;
            z-index: 99;
        }
        .mobile-menu-panel.active {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu-panel a.nav-active {
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 30%, #4c1d95 60%, #2e1065 100%);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 40%, rgba(124, 58, 237, 0.3) 0%, transparent 60%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }
        .page-banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.15);
            color: #fbbf24;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .page-banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .page-banner-desc {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 64px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-label {
            display: inline-block;
            padding: 5px 18px;
            border-radius: 24px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 8px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== CARDS ========== */
        .card-event {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .card-event:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .card-event-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e2e8f0;
        }
        .card-event-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .card-event:hover .card-event-img-wrap img {
            transform: scale(1.06);
        }
        .card-event-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: #ef4444;
            color: #ffffff;
            z-index: 2;
            letter-spacing: 0.03em;
        }
        .card-event-badge.upcoming {
            background: #f59e0b;
            color: #1e293b;
        }
        .card-event-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-event-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .card-event-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .card-event-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-event-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-event-footer {
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .card-event-prize {
            font-weight: 700;
            color: var(--accent);
            font-size: 1rem;
        }
        .btn-card {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.84rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--primary);
            border: none;
            transition: all var(--transition-fast);
        }
        .btn-card:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== SCHEDULE TIMELINE ========== */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-left: 3px solid var(--primary-light);
            margin-left: 12px;
            padding-left: 0;
        }
        .timeline-item {
            position: relative;
            padding: 20px 0 20px 32px;
            border-bottom: 1px solid var(--border-light);
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-dot {
            position: absolute;
            left: -10px;
            top: 26px;
            width: 17px;
            height: 17px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #ffffff;
            box-shadow: 0 0 0 3px var(--primary-light);
        }
        .timeline-date {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .timeline-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
        }
        .timeline-desc {
            font-size: 0.86rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-main);
            background: none;
            border: none;
            text-align: left;
            cursor: pointer;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px 22px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #4c1d95 0%, #5b21b6 30%, #7c3aed 60%, #6d28d9 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.13;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .cta-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            color: #1e293b;
            background: #fbbf24;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 22px rgba(251, 191, 36, 0.35);
        }
        .btn-cta-large:hover {
            background: #f59e0b;
            box-shadow: 0 10px 30px rgba(251, 191, 36, 0.5);
            transform: translateY(-2px);
        }

        /* ========== ADVANTAGE CARDS ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition-base);
        }
        .advantage-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .advantage-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), #f5f3ff);
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 16px;
        }
        .advantage-card h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .advantage-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 48px 0 28px;
            margin-top: auto;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: -0.01em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0;
            }
            .nav-links-desktop a {
                padding: 7px 12px;
                font-size: 0.84rem;
            }
            .nav-search-input {
                width: 150px;
            }
            .nav-search-input:focus {
                width: 170px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-banner-title {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-search-wrap {
                display: none;
            }
            .btn-nav-login {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-inner {
                height: 56px;
            }
            .section {
                padding: 42px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner-title {
                font-size: 1.65rem;
            }
            .page-banner-desc {
                font-size: 0.92rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .card-event-body {
                padding: 16px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-title {
                font-size: 1.35rem;
            }
            .btn-cta-large {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .container-site {
                padding: 0 16px;
            }
            .timeline-item {
                padding: 16px 0 16px 24px;
            }
            .timeline-dot {
                left: -9px;
                top: 22px;
                width: 14px;
                height: 14px;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                min-height: 220px;
            }
            .page-banner-content {
                padding: 36px 0;
            }
            .page-banner-title {
                font-size: 1.4rem;
            }
            .page-banner-desc {
                font-size: 0.84rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-number {
                font-size: 1.3rem;
            }
            .stat-icon {
                width: 38px;
                height: 38px;
                font-size: 1rem;
                margin-bottom: 8px;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .card-event-badge {
                top: 8px;
                left: 8px;
                padding: 4px 10px;
                font-size: 0.7rem;
            }
            .btn-nav-cta {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .card-event-title {
                font-size: 0.95rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand: #e85540;
            --color-brand-dark: #b22f1d;
            --color-brand-light: #fcd0ca;
            --color-accent: #eab308;
            --color-accent-dark: #a16207;
            --color-surface-50: #f8fafc;
            --color-surface-100: #f1f5f9;
            --color-surface-200: #e2e8f0;
            --color-surface-700: #334155;
            --color-surface-800: #1e293b;
            --color-surface-900: #0f172a;
            --color-surface-950: #020617;
            --color-text-primary: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.13);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.65;
            color: var(--color-text-primary);
            background-color: #ffffff;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
            transition: all var(--transition-base);
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 1.25rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-surface-900);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
            text-decoration: none;
        }
        .nav-logo:hover {
            opacity: 0.82;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #e85540, #d43d28);
            color: #ffffff;
            font-size: 1rem;
        }

        .nav-links-desktop {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.35rem;
            align-items: center;
        }
        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-links-desktop li a:hover {
            color: var(--color-brand);
            background: #fef3f2;
        }
        .nav-links-desktop li a.nav-active {
            color: #ffffff;
            background: var(--color-brand);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(232, 85, 64, 0.3);
        }
        .nav-links-desktop li a.nav-active:hover {
            background: var(--color-brand-dark);
            color: #ffffff;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search-input {
            width: 180px;
            padding: 0.45rem 2rem 0.45rem 0.85rem;
            border-radius: 999px;
            border: 1.5px solid var(--color-border);
            font-size: 0.82rem;
            background: var(--color-surface-50);
            color: var(--color-text-primary);
            outline: none;
            transition: all var(--transition-fast);
        }
        .nav-search-input:focus {
            border-color: var(--color-brand-light);
            box-shadow: 0 0 0 3px rgba(232, 85, 64, 0.08);
            width: 210px;
            background: #ffffff;
        }
        .nav-search-input::placeholder {
            color: var(--color-text-muted);
        }
        .nav-search-icon {
            position: absolute;
            right: 0.7rem;
            color: var(--color-text-muted);
            font-size: 0.8rem;
            pointer-events: none;
        }

        .btn-nav-login {
            padding: 0.45rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1.5px solid var(--color-border);
            background: #ffffff;
            color: var(--color-text-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-login:hover {
            border-color: var(--color-brand-light);
            color: var(--color-brand);
            background: #fef3f2;
        }

        .btn-nav-cta {
            padding: 0.45rem 1.15rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            border: none;
            background: var(--color-brand);
            color: #ffffff;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(232, 85, 64, 0.25);
        }
        .btn-nav-cta:hover {
            background: var(--color-brand-dark);
            box-shadow: 0 4px 16px rgba(232, 85, 64, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.35rem;
            color: var(--color-text-primary);
            padding: 0.35rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-surface-100);
            color: var(--color-brand);
        }

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 62px;
            left: 0;
            right: 0;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: 1rem 1.5rem 1.25rem;
            flex-direction: column;
            gap: 0.4rem;
            z-index: 999;
        }
        .mobile-menu-panel.active {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.65rem 1rem;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .mobile-menu-panel a:hover {
            background: var(--color-surface-100);
            color: var(--color-brand);
        }
        .mobile-menu-panel a.nav-active {
            background: #fef3f2;
            color: var(--color-brand);
            font-weight: 600;
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 41, 59, 0.7) 40%, rgba(15, 23, 42, 0.78) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .breadcrumb-nav a:hover {
            color: #ffffff;
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.7rem;
        }

        /* ========== Card Styles ========== */
        .card-streamer {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .card-streamer:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: #fde6e3;
        }
        .card-streamer-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .card-streamer-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-streamer:hover .card-streamer-img-wrap img {
            transform: scale(1.06);
        }
        .card-live-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: #ef4444;
            color: #ffffff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            letter-spacing: 0.02em;
        }
        .card-live-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #ffffff;
            animation: livePulse 1.6s ease-in-out infinite;
        }
        @keyframes livePulse {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
            }
            50% {
                opacity: 0.5;
                box-shadow: 0 0 0 8px rgba(255, 255, 255, 0);
            }
        }
        .card-viewer-count {
            position: absolute;
            bottom: 0.75rem;
            right: 0.75rem;
            background: rgba(0, 0, 0, 0.7);
            color: #ffffff;
            font-size: 0.75rem;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        /* ========== Category Tag Pills ========== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 0.9rem;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            border: 1.5px solid var(--color-border);
            background: #ffffff;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-decoration: none;
        }
        .tag-pill:hover {
            border-color: var(--color-brand-light);
            color: var(--color-brand);
            background: #fef3f2;
            box-shadow: var(--shadow-sm);
        }
        .tag-pill.active-tag {
            background: var(--color-brand);
            color: #ffffff;
            border-color: var(--color-brand);
            font-weight: 600;
        }

        /* ========== Stat Block ========== */
        .stat-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 1.5rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #fde6e3;
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-brand);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        /* ========== FAQ Accordion ========== */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #ffffff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #fcd0ca;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-primary);
            background: none;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-brand);
        }
        .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-brand);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 1.25rem;
            color: var(--color-text-secondary);
            font-size: 0.88rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.25rem 1.1rem;
        }

        /* ========== CTA Section ========== */
        .cta-glow {
            box-shadow: 0 0 60px rgba(232, 85, 64, 0.2), 0 8px 32px rgba(0, 0, 0, 0.1);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-surface-900);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-links li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-links li a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.78rem;
            color: #64748b;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #ffffff;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0.15rem;
            }
            .nav-links-desktop li a {
                padding: 0.4rem 0.65rem;
                font-size: 0.8rem;
            }
            .nav-search-input {
                width: 140px;
            }
            .nav-search-input:focus {
                width: 160px;
            }
            .page-banner {
                min-height: 280px;
            }
            .stat-number {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-search-wrap {
                display: none;
            }
            .btn-nav-login {
                display: none;
            }
            .mobile-menu-toggle {
                display: inline-flex;
            }
            .nav-inner {
                height: 56px;
            }
            .mobile-menu-panel {
                top: 56px;
            }
            .page-banner {
                min-height: 240px;
            }
            .page-banner-content {
                padding: 2rem 0;
            }
            .container-site {
                padding: 0 1rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .card-streamer-img-wrap {
                aspect-ratio: 16 / 9;
            }
            .site-footer {
                padding: 2rem 0 1rem;
            }
        }

        @media (max-width: 520px) {
            .nav-inner {
                height: 52px;
                gap: 0.6rem;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .btn-nav-cta {
                padding: 0.4rem 0.85rem;
                font-size: 0.78rem;
            }
            .mobile-menu-panel {
                top: 52px;
                padding: 0.75rem 1rem 1rem;
            }
            .page-banner {
                min-height: 200px;
            }
            .page-banner-content h1 {
                font-size: 1.5rem !important;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-card {
                padding: 1rem 0.75rem;
            }
            .tag-pill {
                font-size: 0.75rem;
                padding: 0.3rem 0.7rem;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 0.9rem 1rem;
            }
        }

/* roulang page: category3 */
/* ============ CSS Design Variables ============ */
        :root {
            --color-primary: #7C3AED;
            --color-primary-light: #9B6DFF;
            --color-primary-dark: #5B21B6;
            --color-accent: #F59E0B;
            --color-accent-light: #FBBF24;
            --color-bg: #0B0714;
            --color-bg-card: rgba(255, 255, 255, 0.04);
            --color-bg-elevated: rgba(255, 255, 255, 0.07);
            --color-text: #F1F5F9;
            --color-text-muted: #94A3B8;
            --color-text-dim: #64748B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-card-hover: 0 2px 6px rgba(0, 0, 0, 0.5), 0 8px 28px rgba(124, 58, 237, 0.2);
            --shadow-btn: 0 2px 8px rgba(124, 58, 237, 0.35);
            --shadow-btn-hover: 0 4px 18px rgba(124, 58, 237, 0.5);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s ease;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
        }

        /* ============ Base Reset ============ */
        *,
        *::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-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.65;
            min-height: 100vh;
            letter-spacing: 0.01em;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-smooth);
        }

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

        ul {
            list-style: none;
        }

        /* ============ Container ============ */
        .container-site {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 768px) {
            .container-site {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ============ Site Header / Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 7, 20, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.25rem;
            height: 62px;
        }

        @media (max-width: 1024px) {
            .nav-inner {
                height: 56px;
            }
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-weight: 700;
            font-size: 1.25rem;
            color: #ffffff;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            opacity: 0.85;
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: 10px;
            color: #fff;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        @media (max-width: 1024px) {
            .nav-links-desktop {
                display: none;
            }
        }

        .nav-links-desktop a {
            padding: 0.5rem 0.85rem;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links-desktop a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-links-desktop a.nav-active {
            color: #ffffff;
            background: rgba(124, 58, 237, 0.2);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .nav-actions {
                gap: 0.4rem;
            }
        }

        .nav-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }

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

        .nav-search-input {
            width: 190px;
            padding: 0.45rem 2.2rem 0.45rem 0.85rem;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 0.85rem;
            transition: all var(--transition-smooth);
        }

        .nav-search-input:focus {
            width: 240px;
            border-color: var(--color-primary-light);
            background: rgba(255, 255, 255, 0.09);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
        }

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

        .nav-search-icon {
            position: absolute;
            right: 10px;
            color: var(--color-text-muted);
            font-size: 0.8rem;
            pointer-events: none;
        }

        .btn-nav-login {
            padding: 0.45rem 1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text);
            border: 1px solid var(--color-border-strong);
            background: transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.25);
            color: #ffffff;
        }

        @media (max-width: 520px) {
            .btn-nav-login {
                display: none;
            }
        }

        .btn-nav-cta {
            padding: 0.45rem 1.2rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn-nav-cta:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            background: linear-gradient(135deg, var(--color-primary-light), #A78BFA);
        }

        .btn-nav-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }

        @media (max-width: 520px) {
            .btn-nav-cta {
                padding: 0.4rem 0.85rem;
                font-size: 0.8rem;
            }
        }

        .mobile-menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            color: #ffffff;
            font-size: 1.25rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 1024px) {
            .mobile-menu-toggle {
                display: flex;
            }
        }

        /* Mobile Menu Panel */
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(11, 7, 20, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 1.25rem 1.25rem;
            flex-direction: column;
            gap: 0.25rem;
            z-index: 99;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
        }

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

        .mobile-menu-panel a {
            padding: 0.65rem 0.75rem;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }

        .mobile-menu-panel a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu-panel a.nav-active {
            color: #ffffff;
            background: rgba(124, 58, 237, 0.2);
            font-weight: 600;
        }

        /* ============ Section Spacing ============ */
        .section-py {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (max-width: 768px) {
            .section-py {
                padding-top: 2.5rem;
                padding-bottom: 2.5rem;
            }
        }

        .section-py-sm {
            padding-top: 2.5rem;
            padding-bottom: 2.5rem;
        }

        /* ============ Buttons (Global) ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.7rem 1.8rem;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--color-primary-light), #A78BFA);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.65rem 1.6rem;
            border-radius: 28px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #ffffff;
            background: transparent;
            border: 1.5px solid var(--color-border-strong);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--color-primary-light);
            background: rgba(124, 58, 237, 0.1);
            box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.08);
        }

        /* ============ Card Base ============ */
        .card-base {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
        }

        .card-elevated {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
        }

        .card-elevated:hover {
            box-shadow: var(--shadow-card-hover);
        }

        /* ============ Badge / Tag ============ */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.25rem 0.65rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .badge-primary {
            background: rgba(124, 58, 237, 0.22);
            color: #C4B5FD;
            border: 1px solid rgba(124, 58, 237, 0.3);
        }

        .badge-accent {
            background: rgba(245, 158, 11, 0.18);
            color: #FCD34D;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .badge-success {
            background: rgba(16, 185, 129, 0.18);
            color: #6EE7B7;
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        /* ============ Section Title ============ */
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.45rem;
            }
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            max-width: 600px;
            line-height: 1.7;
        }

        /* ============ Divider ============ */
        .divider-subtle {
            width: 100%;
            height: 1px;
            background: var(--color-border);
            margin: 2rem 0;
        }

        /* ============ Focus / Accessibility ============ */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ============ Site Footer ============ */
        .site-footer {
            background: rgba(8, 5, 16, 0.9);
            border-top: 1px solid var(--color-border);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 2rem 0 1.2rem;
            }
        }

        .footer-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #ffffff;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
            display: inline-block;
            width: fit-content;
        }

        .footer-links a:hover {
            color: #ffffff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.25rem;
            border-top: 1px solid var(--color-border);
            font-size: 0.78rem;
            color: var(--color-text-dim);
            text-align: center;
        }

        @media (max-width: 768px) {
            .footer-bottom {
                margin-top: 1.5rem;
                padding-top: 1rem;
                font-size: 0.72rem;
            }
        }

        /* ============ Banner Overlay ============ */
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(11, 7, 20, 0.55) 0%,
                    rgba(11, 7, 20, 0.7) 40%,
                    rgba(11, 7, 20, 0.92) 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
        }

        /* ============ Cover Image Card Overlay ============ */
        .cover-card-img-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            aspect-ratio: 16 / 10;
        }

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

        .card-base:hover .cover-card-img-wrap img {
            transform: scale(1.06);
        }

        .cover-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 7, 20, 0.7) 100%);
            pointer-events: none;
        }

        /* ============ Stat Card ============ */
        .stat-card {
            background: var(--color-bg-elevated);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .stat-card:hover {
            border-color: var(--color-primary-light);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
            transform: translateY(-3px);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        @media (max-width: 768px) {
            .stat-number {
                font-size: 1.7rem;
            }
        }

        .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 0.3rem;
        }

        /* ============ FAQ Item ============ */
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.35rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--color-border-strong);
            background: var(--color-bg-elevated);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            font-weight: 600;
            font-size: 1rem;
            color: #ffffff;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            color: var(--color-primary-light);
            flex-shrink: 0;
            margin-top: 0.15rem;
            font-size: 0.85rem;
        }

        .faq-answer {
            margin-top: 0.65rem;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            padding-left: 1.4rem;
        }

        /* ============ Responsive Tweaks ============ */
        @media (max-width: 1024px) {
            .hide-tablet {
                display: none;
            }
        }

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

        @media (min-width: 1025px) {
            .show-desktop-only {
                display: flex;
            }
        }

        /* ============ Animation ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-delay-1 {
            animation-delay: 0.1s;
        }

        .animate-delay-2 {
            animation-delay: 0.2s;
        }

        .animate-delay-3 {
            animation-delay: 0.3s;
        }

/* roulang page: category4 */
:root {
            --color-primary: #7c3aed;
            --color-primary-dark: #6d28d9;
            --color-primary-light: #a78bfa;
            --color-secondary: #f59e0b;
            --color-secondary-light: #fbbf24;
            --color-dark: #0f172a;
            --color-surface: #1e293b;
            --color-surface-light: #334155;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-border: #475569;
            --color-white: #ffffff;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 40px rgba(124, 58, 237, 0.25);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.3);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: #0a0e17;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        /* 站点容器 */
        .container-site {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 站点头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(124, 58, 237, 0.18);
            box-shadow: var(--shadow-nav);
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1rem;
        }

        @media (min-width: 1024px) {
            .nav-inner {
                height: 70px;
                gap: 1.5rem;
            }
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: #ffffff;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), #a855f7);
            color: #ffffff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .nav-links-desktop {
            display: none;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            align-items: center;
            flex-wrap: nowrap;
        }

        @media (min-width: 1024px) {
            .nav-links-desktop {
                display: flex;
            }
        }

        .nav-links-desktop li a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #cbd5e1;
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-links-desktop li a:hover {
            color: #ffffff;
            background: rgba(124, 58, 237, 0.15);
        }
        .nav-links-desktop li a.nav-active {
            color: #ffffff;
            background: rgba(124, 58, 237, 0.28);
            font-weight: 600;
            box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.35);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: none;
            position: relative;
            align-items: center;
        }

        @media (min-width: 768px) {
            .nav-search-wrap {
                display: flex;
            }
        }

        .nav-search-input {
            width: 180px;
            padding: 0.5rem 2.2rem 0.5rem 1rem;
            border-radius: 24px;
            border: 1px solid var(--color-border);
            background: rgba(30, 41, 59, 0.7);
            color: #e2e8f0;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }
        .nav-search-input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
            width: 220px;
        }
        .nav-search-input::placeholder {
            color: #64748b;
        }
        .nav-search-icon {
            position: absolute;
            right: 10px;
            color: #64748b;
            font-size: 0.85rem;
            pointer-events: none;
        }

        .btn-nav-login {
            display: none;
            padding: 0.45rem 1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 500;
            background: transparent;
            color: #e2e8f0;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        @media (min-width: 768px) {
            .btn-nav-login {
                display: inline-block;
            }
        }
        .btn-nav-login:hover {
            border-color: var(--color-primary-light);
            color: #ffffff;
            background: rgba(124, 58, 237, 0.1);
        }

        .btn-nav-cta {
            padding: 0.45rem 1.1rem;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
            color: #ffffff;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 10px rgba(124, 58, 237, 0.35);
        }
        .btn-nav-cta:hover {
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.55);
            transform: translateY(-1px);
        }
        .btn-nav-cta:active {
            transform: translateY(0);
        }

        .mobile-menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(30, 41, 59, 0.8);
            color: #e2e8f0;
            font-size: 1.15rem;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        @media (min-width: 1024px) {
            .mobile-menu-toggle {
                display: none;
            }
        }
        .mobile-menu-toggle:hover {
            background: rgba(124, 58, 237, 0.2);
            border-color: var(--color-primary);
        }

        /* 移动端菜单面板 */
        .mobile-menu-panel {
            display: none;
            flex-direction: column;
            background: rgba(15, 23, 42, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(124, 58, 237, 0.2);
            padding: 0.75rem 1.25rem 1rem;
            gap: 0.3rem;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            z-index: 999;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #cbd5e1;
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover {
            background: rgba(124, 58, 237, 0.15);
            color: #ffffff;
        }
        .mobile-menu-panel a.nav-active {
            background: rgba(124, 58, 237, 0.28);
            color: #ffffff;
            font-weight: 600;
        }

        /* ===== 页面主体偏移 ===== */
        .page-content {
            padding-top: 64px;
        }
        @media (min-width: 1024px) {
            .page-content {
                padding-top: 70px;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .section-subtitle {
            text-align: center;
            color: #94a3b8;
            font-size: 0.95rem;
            max-width: 600px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 3rem;
            }
        }

        /* ===== 卡片通用 ===== */
        .card-base {
            background: #1a1f2e;
            border: 1px solid rgba(71, 85, 105, 0.4);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            transition: all var(--transition-normal);
        }
        .card-base:hover {
            border-color: rgba(124, 58, 237, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-block;
            padding: 0.75rem 1.8rem;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            background: linear-gradient(135deg, #7c3aed, #8b5cf6);
            color: #ffffff;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
            text-align: center;
        }
        .btn-primary:hover {
            box-shadow: 0 8px 28px rgba(124, 58, 237, 0.5);
            transform: translateY(-2px);
            color: #ffffff;
        }
        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-block;
            padding: 0.7rem 1.6rem;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            color: #e2e8f0;
            border: 1.5px solid #7c3aed;
            transition: all var(--transition-normal);
            text-align: center;
        }
        .btn-outline:hover {
            background: rgba(124, 58, 237, 0.12);
            border-color: #a78bfa;
            color: #ffffff;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-block;
            padding: 0.25rem 0.7rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(124, 58, 237, 0.18);
            color: #c4b5fd;
            border: 1px solid rgba(124, 58, 237, 0.3);
            white-space: nowrap;
        }
        .tag-gold {
            background: rgba(245, 158, 11, 0.15);
            color: #fcd34d;
            border-color: rgba(245, 158, 11, 0.35);
        }
        .tag-green {
            background: rgba(34, 197, 94, 0.15);
            color: #86efac;
            border-color: rgba(34, 197, 94, 0.35);
        }

        /* ===== FAQ ===== */
        details.faq-item {
            background: #1a1f2e;
            border: 1px solid rgba(71, 85, 105, 0.4);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        details.faq-item+details.faq-item {
            margin-top: 0.6rem;
        }
        details.faq-item summary {
            padding: 1.1rem 1.3rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: #e2e8f0;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            transition: color var(--transition-fast);
        }
        details.faq-item summary::-webkit-details-marker {
            display: none;
        }
        details.faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.85rem;
            color: #7c3aed;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            margin-left: 0.5rem;
        }
        details.faq-item[open] summary {
            color: #ffffff;
        }
        details.faq-item[open] summary::after {
            transform: rotate(180deg);
            color: #a78bfa;
        }
        details.faq-item .faq-body {
            padding: 0 1.3rem 1.2rem;
            color: #94a3b8;
            font-size: 0.88rem;
            line-height: 1.8;
        }

        /* ===== 统计数字动画 ===== */
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.8rem;
            }
        }
        .stat-label {
            font-size: 0.85rem;
            color: #94a3b8;
            margin-top: 0.3rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a0e17;
            border-top: 1px solid rgba(71, 85, 105, 0.35);
            padding: 3rem 1.25rem 1.5rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 2rem 2rem;
            }
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: #ffffff;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-links li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: #c4b5fd;
        }
        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.2rem;
            border-top: 1px solid rgba(71, 85, 105, 0.25);
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #0f172a;
        }
        ::-webkit-scrollbar-thumb {
            background: #334155;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #475569;
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid #a78bfa;
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Hero 遮罩 ===== */
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 23, 0.55) 0%, rgba(10, 14, 23, 0.82) 60%, #0a0e17 100%);
            z-index: 1;
        }