/* roulang page: index */
:root {
            --color-brand-dark: #0f1b2d;
            --color-brand-navy: #162338;
            --color-brand-blue: #1a2d4a;
            --color-brand-gold: #c9a96e;
            --color-brand-gold-light: #d9bd8a;
            --color-brand-gold-dark: #a8894e;
            --color-brand-cream: #faf7f2;
            --color-soft-gray: #f8f9fb;
            --color-muted: #6b7280;
            --color-deep: #1a1a1a;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --radius-3xl: 20px;
            --shadow-soft: 0 2px 16px rgba(15, 27, 45, 0.06);
            --shadow-card: 0 4px 24px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 12px 36px rgba(15, 27, 45, 0.13);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::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", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: #1a1a1a;
            background-color: #ffffff;
            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;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-brand-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* 导航样式 */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(15, 27, 45, 0.07);
            box-shadow: var(--shadow-nav, 0 1px 0 rgba(15, 27, 45, 0.05));
            transition: box-shadow var(--transition-smooth);
        }
        .nav-header.scrolled {
            box-shadow: 0 2px 20px rgba(15, 27, 45, 0.1);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .nav-inner {
                height: 56px;
                padding: 0 16px;
            }
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-brand-dark);
            white-space: nowrap;
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--color-brand-gold-dark);
        }
        .nav-logo::before {
            content: '';
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--color-brand-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo::before {
                width: 8px;
                height: 8px;
            }
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
        }

        .nav-links-desktop a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #4a5567;
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-brand-gold);
            border-radius: 1px;
            transition: width var(--transition-smooth);
        }
        .nav-links-desktop a:hover {
            color: var(--color-brand-dark);
        }
        .nav-links-desktop a:hover::after {
            width: 100%;
        }
        .nav-links-desktop a.nav-active {
            color: var(--color-brand-dark);
            font-weight: 600;
        }
        .nav-links-desktop a.nav-active::after {
            width: 100%;
            background: var(--color-brand-gold-dark);
            height: 2.5px;
        }

        /* 移动端导航 */
        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
            z-index: 110;
            width: 40px;
            height: 32px;
            justify-content: center;
            align-items: center;
        }
        @media (max-width: 768px) {
            .nav-hamburger {
                display: flex;
            }
        }
        .nav-hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-brand-dark);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }
        .nav-hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-hamburger.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.5);
            z-index: 98;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .nav-mobile-overlay.show {
            display: block;
            opacity: 1;
        }

        .nav-mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            background: #ffffff;
            z-index: 99;
            padding: 80px 28px 32px;
            flex-direction: column;
            gap: 6px;
            transition: right var(--transition-smooth);
            box-shadow: -8px 0 30px rgba(15, 27, 45, 0.12);
            overflow-y: auto;
        }
        @media (max-width: 768px) {
            .nav-mobile-menu {
                display: flex;
            }
        }
        .nav-mobile-menu.open {
            right: 0;
        }
        .nav-mobile-menu a {
            display: block;
            font-size: 1rem;
            font-weight: 500;
            color: #4a5567;
            padding: 12px 16px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        .nav-mobile-menu a:hover {
            background: var(--color-brand-cream);
            color: var(--color-brand-dark);
        }
        .nav-mobile-menu a.nav-active {
            background: var(--color-brand-cream);
            color: var(--color-brand-dark);
            font-weight: 600;
            border-left: 3px solid var(--color-brand-gold);
            padding-left: 13px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: var(--color-brand-dark);
            overflow: hidden;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 480px;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 420px;
            }
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 45, 0.88) 0%, rgba(22, 35, 56, 0.7) 50%, rgba(26, 45, 74, 0.6) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 24px;
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .hero-content {
                padding: 60px 16px;
            }
        }
        .hero-badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.2);
            border: 1px solid rgba(201, 169, 110, 0.4);
            color: #d9bd8a;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin-bottom: 12px;
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.3rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 400;
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        @media (max-width: 520px) {
            .hero-subtitle {
                font-size: 1rem;
            }
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand-gold);
            color: #0f1b2d;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: 28px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.35);
            white-space: nowrap;
        }
        .btn-primary-gold:hover {
            background: var(--color-brand-gold-light);
            box-shadow: 0 8px 28px rgba(201, 169, 110, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-weight: 500;
            padding: 13px 30px;
            border-radius: 28px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            border: 1.5px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        /* 通用板块 */
        .section {
            padding: 72px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }
        .section-alt {
            background: var(--color-soft-gray);
        }
        .section-warm {
            background: var(--color-brand-cream);
        }
        .section-dark {
            background: var(--color-brand-dark);
            color: #ffffff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-brand-dark);
            margin-bottom: 8px;
        }
        .section-dark .section-header h2 {
            color: #ffffff;
        }
        .section-header .section-line {
            display: block;
            width: 48px;
            height: 3px;
            background: var(--color-brand-gold);
            border-radius: 2px;
            margin: 10px auto 0;
        }
        .section-header p {
            color: var(--color-muted);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 8px auto 0;
        }

        /* 卡片 */
        .card-stat {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid rgba(15, 27, 45, 0.04);
        }
        .card-stat:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 169, 110, 0.2);
        }
        .card-stat .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-brand-gold-dark);
            letter-spacing: -0.01em;
            line-height: 1.1;
        }
        .card-stat .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        .card-advantage {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid rgba(15, 27, 45, 0.04);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .card-advantage:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .card-advantage .adv-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--color-brand-cream);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            flex-shrink: 0;
        }
        .card-advantage h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-brand-dark);
        }
        .card-advantage p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.65;
        }

        .card-category {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: block;
            aspect-ratio: 4 / 3;
            min-height: 220px;
            text-decoration: none;
            color: inherit;
        }
        .card-category:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-category img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-category:hover img {
            transform: scale(1.06);
        }
        .card-category .cat-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px 20px;
            background: linear-gradient(transparent, rgba(15, 27, 45, 0.85));
            color: #ffffff;
            z-index: 2;
        }
        .card-category .cat-overlay h4 {
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .card-category .cat-overlay span {
            font-size: 0.8rem;
            opacity: 0.8;
            margin-top: 2px;
            display: block;
        }

        .card-news {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 20px 22px;
            box-shadow: var(--shadow-soft);
            transition: all var(--transition-smooth);
            border: 1px solid rgba(15, 27, 45, 0.04);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .card-news:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .card-news .news-date {
            font-size: 0.8rem;
            color: var(--color-brand-gold-dark);
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .card-news h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            line-height: 1.4;
        }
        .card-news p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.55;
            flex-grow: 1;
        }
        .card-news .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-brand-gold-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }
        .card-news .read-more:hover {
            gap: 8px;
            color: #8a6a3a;
        }

        /* FAQ */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-xl);
            margin-bottom: 10px;
            border: 1px solid rgba(15, 27, 45, 0.06);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: rgba(201, 169, 110, 0.25);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-brand-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            letter-spacing: 0.01em;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--color-brand-cream);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-brand-cream);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: transform var(--transition-smooth);
            color: var(--color-brand-gold-dark);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--color-brand-gold);
            color: #ffffff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.45s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.7;
            background: #fdfcf9;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* 评价 */
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 27, 45, 0.04);
            position: relative;
            transition: all var(--transition-smooth);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card::before {
            content: '"';
            font-size: 4rem;
            color: var(--color-brand-gold);
            opacity: 0.2;
            position: absolute;
            top: 10px;
            left: 18px;
            line-height: 1;
            font-family: Georgia, serif;
        }
        .testimonial-card p {
            font-size: 0.93rem;
            color: #4a5567;
            line-height: 1.7;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            padding-top: 8px;
        }
        .testimonial-card .author {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-brand-dark);
        }

        /* CTA */
        .cta-section {
            background: var(--color-brand-dark);
            color: #ffffff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(201, 169, 110, 0.12) 0%, transparent 70%);
            top: -80px;
            right: -100px;
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            margin: 8px 0 24px;
            font-size: 1rem;
        }

        /* Footer */
        .site-footer {
            background: #0d1726;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .site-footer h4 {
            color: #ffffff;
            font-weight: 600;
            margin-bottom: 10px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: var(--color-brand-gold-light);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            margin-bottom: 6px;
        }

/* roulang page: category1 */
/* 基础重置与设计变量补充 */
    :root {
      --primary-color: #1e3a8a;
      --accent-color: #f59e0b;
      --text-color: #1e293b;
      --text-muted: #64748b;
      --bg-white: #ffffff;
      --bg-light: #f8fafc;
      --border-color: #e2e8f0;
      --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.04), 0 1px 2px 0 rgba(0,0,0,0.03);
      --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.08), 0 6px 12px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.12), 0 12px 20px -10px rgba(0, 0, 0, 0.06);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      color: var(--text-color);
      background-color: var(--bg-white);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* 导航栏定制 (极简高端文字导航) */
    .nav-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px) saturate(180%);
      -webkit-backdrop-filter: blur(16px) saturate(180%);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition-base);
    }
    .nav-inner {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 clamp(1rem, 4vw, 2rem);
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .nav-logo {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-color);
      text-decoration: none;
      letter-spacing: -0.02em;
      transition: opacity 0.2s;
      white-space: nowrap;
    }
    .nav-logo:hover {
      opacity: 0.85;
    }
    .nav-links-desktop {
      display: flex;
      gap: 2.5rem;
      list-style: none;
      margin: 0;
      padding: 0;
      align-items: center;
    }
    .nav-links-desktop a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      text-decoration: none;
      position: relative;
      padding: 0.25rem 0;
      transition: color 0.2s;
      white-space: nowrap;
      letter-spacing: 0.01em;
    }
    .nav-links-desktop a:hover {
      color: var(--primary-color);
    }
    .nav-links-desktop a.nav-active {
      color: var(--primary-color);
      font-weight: 600;
    }
    .nav-links-desktop a.nav-active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 50%;
      transform: translateX(-50%);
      width: 18px;
      height: 2.5px;
      background: var(--accent-color);
      border-radius: 999px;
    }
    .nav-hamburger {
      display: none;
      flex-direction: column;
      justify-content: space-between;
      width: 24px;
      height: 18px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 0;
      z-index: 60;
    }
    .nav-hamburger span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--primary-color);
      border-radius: 2px;
      transition: var(--transition-base);
    }

    /* 基础容器 */
    .container-custom {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 clamp(1rem, 5vw, 2rem);
    }

    /* 板块间距 */
    .section-space {
      padding-top: clamp(3.5rem, 10vw, 6rem);
      padding-bottom: clamp(3.5rem, 10vw, 6rem);
    }
    .section-title {
      font-size: clamp(1.75rem, 5vw, 2.5rem);
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 0.75rem;
      letter-spacing: -0.02em;
    }
    .section-subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 640px;
      margin: 0 auto 3rem auto;
      text-align: center;
      line-height: 1.6;
    }

    /* 卡片样式 */
    .game-card {
      background: #fff;
      border-radius: 1.25rem;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition-base);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .game-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: transparent;
    }
    .card-img-wrapper {
      position: relative;
      width: 100%;
      padding-top: 65%;
      background: #f1f5f9;
      overflow: hidden;
    }
    .card-img-wrapper img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .game-card:hover .card-img-wrapper img {
      transform: scale(1.06);
    }
    .card-content {
      padding: 1.5rem 1.5rem 1.75rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .card-tag {
      display: inline-block;
      background: rgba(30, 58, 138, 0.06);
      color: var(--primary-color);
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.25rem 0.75rem;
      border-radius: 999px;
      width: fit-content;
      margin-bottom: 0.75rem;
      letter-spacing: 0.02em;
    }
    .card-title {
      font-size: 1.35rem;
      font-weight: 650;
      margin-bottom: 0.5rem;
      color: #0f172a;
    }
    .card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .card-link {
      font-weight: 600;
      color: var(--primary-color);
      text-decoration: none;
      font-size: 0.95rem;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      transition: gap 0.2s;
    }
    .card-link:hover {
      gap: 0.7rem;
    }

    /* 排版与列表 */
    .ranking-item {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1rem 0;
      border-bottom: 1px solid var(--border-color);
      transition: background 0.2s;
      cursor: default;
    }
    .ranking-item:last-child {
      border-bottom: none;
    }
    .ranking-num {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--accent-color);
      min-width: 2.5rem;
      text-align: center;
    }
    .ranking-content h4 {
      font-weight: 600;
      margin-bottom: 0.2rem;
    }
    .ranking-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* FAQ */
    .faq-item {
      border-bottom: 1px solid var(--border-color);
      padding: 1.5rem 0;
    }
    .faq-question {
      font-weight: 650;
      font-size: 1.15rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.2s;
      color: #0f172a;
    }
    .faq-question:hover {
      color: var(--primary-color);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding-top 0.4s ease;
      color: var(--text-muted);
      line-height: 1.7;
      font-size: 0.95rem;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-top: 1rem;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-icon {
      font-size: 1.5rem;
      font-weight: 300;
      transition: transform 0.3s ease;
    }

    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
      border-radius: 1.75rem;
      padding: clamp(2.5rem, 8vw, 4.5rem);
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -10%;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: rgba(255,255,255,0.85);
      padding: 3.5rem 0 0 0;
      margin-top: 5rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
      gap: 2.5rem;
      padding-bottom: 2.5rem;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .footer-logo-text {
      font-size: 1.5rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
    }
    .site-footer h4 {
      font-weight: 600;
      margin-bottom: 1.25rem;
      color: #fff;
      font-size: 0.95rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .site-footer a {
      color: rgba(255,255,255,0.6);
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
      line-height: 2.2;
    }
    .site-footer a:hover {
      color: var(--accent-color);
    }
    .footer-bottom {
      padding: 1.75rem 0;
      text-align: center;
      font-size: 0.85rem;
      color: rgba(255,255,255,0.45);
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .nav-links-desktop { gap: 1.8rem; }
    }
    @media (max-width: 768px) {
      .nav-links-desktop { display: none; }
      .nav-hamburger { display: flex; }
      .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
      .cta-section::before { width: 250px; height: 250px; }
      .section-title { font-size: 1.85rem; }
    }
    @media (max-width: 520px) {
      .game-card { border-radius: 1rem; }
      .card-content { padding: 1.25rem; }
      .container-custom { padding: 0 1rem; }
    }

/* roulang page: category4 */
:root {
            --color-brand: #d96010;
            --color-brand-hover: #b44812;
            --color-brand-light: #fef7ee;
            --color-accent: #2563eb;
            --color-accent-light: #ddedff;
            --color-surface: #fafaf9;
            --color-text: #1c1917;
            --color-text-weak: #78716c;
            --color-border: #e7e5e4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.10);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s 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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.65;
            color: var(--color-text);
            background-color: #ffffff;
            min-height: 100vh;
        }

        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;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        /* ===== 导航样式 ===== */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow var(--transition-normal);
        }

        .nav-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 60px;
        }

        @media (min-width: 768px) {
            .nav-inner {
                padding: 0 32px;
                height: 66px;
            }
        }

        @media (min-width: 1024px) {
            .nav-inner {
                padding: 0 40px;
                height: 72px;
            }
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-text);
            white-space: nowrap;
            transition: color var(--transition-fast);
            position: relative;
        }

        .nav-logo::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-brand);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
        }

        .nav-logo:hover {
            color: var(--color-brand);
        }

        .nav-logo:hover::after {
            transform: scaleX(1);
        }

        .nav-links-desktop {
            display: none;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }

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

        .nav-links-desktop li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-weak);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-links-desktop li a:hover {
            color: var(--color-brand);
            background: var(--color-brand-light);
        }

        .nav-links-desktop li a.nav-active {
            color: var(--color-brand);
            font-weight: 600;
            background: var(--color-brand-light);
        }

        .nav-links-desktop li a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px;
        }

        /* 移动端汉堡菜单 */
        .nav-hamburger {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: transparent;
            border: none;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            z-index: 1100;
        }

        .nav-hamburger:hover {
            background: var(--color-brand-light);
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

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

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

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

        @media (min-width: 1024px) {
            .nav-hamburger {
                display: none;
            }
        }

        /* 移动端菜单面板 */
        .nav-mobile-panel {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 1050;
            padding: 24px 20px;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }

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

        @media (min-width: 768px) {
            .nav-mobile-panel {
                top: 66px;
                padding: 28px 32px;
            }
        }

        @media (min-width: 1024px) {
            .nav-mobile-panel {
                display: none !important;
            }
        }

        .nav-mobile-panel a {
            display: block;
            padding: 13px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-weak);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .nav-mobile-panel a:hover {
            color: var(--color-brand);
            background: var(--color-brand-light);
            border-color: #fdedd3;
        }

        .nav-mobile-panel a.nav-active {
            color: var(--color-brand);
            font-weight: 600;
            background: var(--color-brand-light);
            border-color: #fad7a5;
        }

        /* ===== 页脚样式 ===== */
        .site-footer {
            background: #1c1917;
            color: #ffffff;
            padding: 48px 0 20px;
            margin-top: 0;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 60px 0 24px;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 0.9fr 0.9fr 1.2fr;
                gap: 36px;
            }
        }

        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
            color: #ffffff;
        }

        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            color: #ffffff;
            letter-spacing: 0.02em;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--color-brand);
            border-radius: 2px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            display: inline-block;
            padding: 4px 0;
        }

        .site-footer ul li a:hover {
            color: #ffffff;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.02em;
        }

        /* ===== 页面自定义补充样式 ===== */
        .hero-overlay {
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.35) 60%, rgba(0, 0, 0, 0.6) 100%);
        }

        .card-hover-lift {
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
        }

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

        .badge-hot {
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            display: inline-block;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.45);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
            }
        }

        .badge-new {
            background: #2563eb;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            display: inline-block;
        }

        .badge-limited {
            background: #f59e0b;
            color: #1c1917;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            display: inline-block;
        }

        .vip-card-gold {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
            border: 2px solid #f59e0b;
        }

        .vip-card-platinum {
            background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
            border: 2px solid #6366f1;
        }

        .vip-card-diamond {
            background: linear-gradient(135deg, #fce7f3, #fbcfe8);
            border: 2px solid #ec4899;
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            background: var(--color-brand);
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(217, 96, 16, 0.35);
        }

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

        .faq-item:hover {
            border-color: #fad7a5;
        }

        .faq-question {
            cursor: pointer;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: #fef7ee;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            background: #fafaf9;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 12px 20px 18px;
        }

        .faq-arrow {
            width: 20px;
            height: 20px;
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            color: var(--color-text-weak);
        }

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

        @media (max-width: 767px) {
            .hero-title {
                font-size: 1.8rem !important;
            }
            .hero-desc {
                font-size: 0.95rem !important;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem !important;
            }
            .vip-card-inner {
                flex-direction: column !important;
                align-items: flex-start !important;
            }
        }

/* roulang page: category3 */
:root {
            --color-brand: #ec7e18;
            --color-brand-dark: #b04a10;
            --color-brand-light: #f9d7a5;
            --color-accent: #0c8de9;
            --color-accent-dark: #0158a1;
            --color-text: #1c1917;
            --color-text-muted: #78716c;
            --color-text-light: #a8a29e;
            --color-bg: #fafaf9;
            --color-surface: #f5f0eb;
            --color-border: #e7e5e4;
            --color-white: #ffffff;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        *,
        *::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", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        /* 容器 */
        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-normal);
        }

        .nav-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        @media (min-width: 1024px) {
            .nav-inner {
                padding: 0 2rem;
            }
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-brand);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            position: relative;
        }

        .nav-logo:hover {
            color: var(--color-brand-dark);
        }

        .nav-logo::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-brand);
            border-radius: 2px;
            transition: width var(--transition-normal);
        }

        .nav-logo:hover::after {
            width: 100%;
        }

        .nav-links-desktop {
            display: none;
            list-style: none;
            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 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links-desktop li a:hover {
            color: var(--color-brand);
            background: rgba(236, 126, 24, 0.04);
        }

        .nav-links-desktop li a.nav-active {
            color: var(--color-brand);
            font-weight: 600;
            background: rgba(236, 126, 24, 0.07);
        }

        .nav-links-desktop li a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px;
        }

        /* 汉堡菜单 */
        .nav-hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px 4px;
            cursor: pointer;
            z-index: 110;
            background: transparent;
            border: none;
            transition: all var(--transition-fast);
        }

        .nav-hamburger span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

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

        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        @media (min-width: 1024px) {
            .nav-hamburger {
                display: none;
            }
        }

        /* 移动端导航面板 */
        .nav-mobile-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 99;
            flex-direction: column;
            padding: 1.5rem;
            gap: 0.25rem;
            overflow-y: auto;
        }

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

        .nav-mobile-panel a {
            display: block;
            padding: 0.85rem 1rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .nav-mobile-panel a:hover {
            background: rgba(236, 126, 24, 0.05);
            color: var(--color-brand);
        }

        .nav-mobile-panel a.nav-active {
            color: var(--color-brand);
            font-weight: 600;
            background: rgba(236, 126, 24, 0.08);
        }

        /* 板块间距 */
        .section {
            padding: 3.5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 6rem 0;
            }
        }

        .section-sm {
            padding: 2.5rem 0;
        }

        @media (min-width: 768px) {
            .section-sm {
                padding: 3.5rem 0;
            }
        }

        /* 板块标题 */
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-brand);
            background: rgba(236, 126, 24, 0.08);
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.01em;
            margin-bottom: 0.75rem;
            line-height: 1.35;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 680px;
        }

        /* 卡片 */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .card-clickable {
            cursor: pointer;
        }

        .card-clickable:focus-visible {
            outline: 3px solid var(--color-brand);
            outline-offset: 3px;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 999px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
            text-align: center;
        }

        .btn-primary {
            background: var(--color-brand);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            background: var(--color-brand-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }

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

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

        .btn-outline:hover {
            background: var(--color-brand);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-text-muted);
        }

        .btn-ghost:hover {
            color: var(--color-brand);
            background: rgba(236, 126, 24, 0.05);
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-brand);
            outline-offset: 3px;
        }

        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .badge-brand {
            background: rgba(236, 126, 24, 0.12);
            color: var(--color-brand-dark);
        }

        .badge-accent {
            background: rgba(12, 141, 233, 0.1);
            color: var(--color-accent-dark);
        }

        .badge-success {
            background: rgba(16, 185, 129, 0.1);
            color: #065f46;
        }

        /* 步骤编号 */
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-brand);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(236, 126, 24, 0.3);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--color-white);
            transition: all var(--transition-normal);
            margin-bottom: 0.75rem;
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

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

        .faq-answer {
            padding: 0 1.25rem 1.1rem 1.25rem;
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-question {
            color: var(--color-brand);
        }

        .faq-icon {
            font-size: 1.25rem;
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            color: var(--color-text-light);
        }

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

        /* 页脚 */
        .site-footer {
            background: #1c1917;
            color: #e7e5e4;
            padding: 3rem 0 1.5rem;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2rem;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2.5rem;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
                gap: 3rem;
            }
        }

        .footer-logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
            letter-spacing: 0.02em;
        }

        .site-footer h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: 0.03em;
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            line-height: 2.2;
        }

        .site-footer a:hover {
            color: var(--color-brand-light);
        }

        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
            letter-spacing: 0.02em;
        }

        @media (min-width: 768px) {
            .footer-bottom {
                margin-top: 3rem;
            }
        }

        /* Banner 背景覆盖 */
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.75) 0%, rgba(28, 25, 23, 0.45) 50%, rgba(28, 25, 23, 0.7) 100%);
            z-index: 1;
        }

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

        /* 分隔线 */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--color-brand);
            border-radius: 3px;
            margin: 1rem 0;
        }

        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }

        /* 提示框 */
        .tip-box {
            background: rgba(12, 141, 233, 0.05);
            border-left: 4px solid var(--color-accent);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 1rem 1.25rem;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .tip-box strong {
            color: var(--color-accent-dark);
        }

        /* 响应式调整 */
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.5rem;
            }
            .btn {
                padding: 0.65rem 1.4rem;
                font-size: 0.9rem;
            }
            .card {
                border-radius: var(--radius-lg);
            }
            .nav-logo {
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a2e;
            --color-accent: #c9a96e;
            --color-accent-dark: #a8864a;
            --color-accent-light: #e0d3b8;
            --color-surface: #faf8f5;
            --color-surface-alt: #f3efe8;
            --color-text-main: #1a1a2e;
            --color-text-soft: #5c5c6e;
            --color-text-muted: #8a8a9a;
            --color-border: #e8e3d8;
            --color-border-light: #f0ebe0;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-pill: 9999px;
            --shadow-card: 0 2px 16px rgba(26, 26, 46, 0.06), 0 1px 3px rgba(26, 26, 46, 0.04);
            --shadow-card-hover: 0 8px 32px rgba(26, 26, 46, 0.10), 0 2px 8px rgba(26, 26, 46, 0.06);
            --shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.04);
            --shadow-btn: 0 2px 8px rgba(201, 169, 110, 0.25);
            --shadow-btn-hover: 0 4px 16px rgba(201, 169, 110, 0.40);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::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: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            line-height: 1.7;
            background-color: #faf8f5;
            color: #1a1a2e;
            min-height: 100vh;
            letter-spacing: 0.01em;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 248, 245, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            transition: background var(--transition-smooth);
        }

        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .nav-logo {
            font-family: "Noto Serif SC", "STSong", serif;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-accent-dark);
        }

        .nav-links-desktop {
            display: flex;
            list-style: none;
            gap: 6px;
            align-items: center;
        }

        .nav-links-desktop li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-links-desktop li a:hover {
            color: var(--color-accent-dark);
            background: rgba(201, 169, 110, 0.08);
        }

        .nav-links-desktop li a.nav-active {
            color: var(--color-accent-dark);
            font-weight: 600;
            background: rgba(201, 169, 110, 0.12);
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }

        .nav-hamburger:hover {
            background: rgba(201, 169, 110, 0.08);
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(250, 248, 245, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 99;
            padding: 24px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 20px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: 12px;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.nav-active {
            color: var(--color-accent-dark);
            background: rgba(201, 169, 110, 0.10);
            font-weight: 600;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1a1a2e;
            color: #ffffff;
            padding: 56px 0 28px;
            margin-top: 0;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: #ffffff;
            letter-spacing: 0.04em;
        }

        .site-footer .footer-logo-text {
            font-family: "Noto Serif SC", "STSong", serif;
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            color: #ffffff;
        }

        .site-footer ul li {
            margin-bottom: 9px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .site-footer ul li a:hover {
            color: var(--color-accent-light);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.03em;
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 56px 0;
        }

        .section-title {
            font-family: "Noto Serif SC", "STSong", serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-soft);
            letter-spacing: 0.02em;
            margin-bottom: 32px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header .section-title {
            margin-bottom: 8px;
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: 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(180deg, rgba(26, 26, 46, 0.55) 0%, rgba(26, 26, 46, 0.72) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #ffffff;
            padding: 40px 24px;
            max-width: 720px;
        }

        .page-banner-content h1 {
            font-family: "Noto Serif SC", "STSong", serif;
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .page-banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            letter-spacing: 0.03em;
        }

        .page-banner-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        /* ===== 赛事卡片 ===== */
        .event-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

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

        .event-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .event-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card-tag {
            display: inline-block;
            background: rgba(201, 169, 110, 0.14);
            color: var(--color-accent-dark);
            font-weight: 600;
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.03em;
            margin-bottom: 10px;
            width: fit-content;
        }

        .event-card-tag.live {
            background: #fef2f2;
            color: #dc2626;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.55;
            }
        }

        .event-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
            line-height: 1.4;
        }

        .event-card .event-meta {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .event-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            letter-spacing: 0.02em;
        }

        .event-card .event-prize {
            font-weight: 700;
            color: var(--color-accent-dark);
            font-size: 1.05rem;
            margin-top: 10px;
            letter-spacing: 0.03em;
        }

        /* ===== 日程列表 ===== */
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 22px;
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            margin-bottom: 10px;
        }

        .schedule-item:hover {
            border-color: var(--color-accent-light);
            box-shadow: var(--shadow-card);
        }

        .schedule-date {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            background: var(--color-surface-alt);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
        }

        .schedule-date .day {
            font-size: 1.4rem;
            line-height: 1;
        }
        .schedule-date .month {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

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

        .schedule-info h4 {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }

        .schedule-info span {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        .schedule-status {
            flex-shrink: 0;
            font-weight: 600;
            font-size: 0.82rem;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.03em;
        }

        .schedule-status.upcoming {
            background: #eff6ff;
            color: #1d4ed8;
        }
        .schedule-status.ongoing {
            background: #fef3c7;
            color: #b45309;
        }
        .schedule-status.ended {
            background: #f3f4f6;
            color: #6b7280;
        }

        /* ===== 亮点卡片 ===== */
        .highlight-card {
            text-align: center;
            padding: 28px 20px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .highlight-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent-light);
            transform: translateY(-2px);
        }

        .highlight-icon {
            width: 56px;
            height: 56px;
            background: rgba(201, 169, 110, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--color-accent-dark);
        }

        .highlight-card h4 {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 1rem;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .highlight-card p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            letter-spacing: 0.02em;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }

        .faq-question {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 1rem;
            letter-spacing: 0.03em;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.3s ease;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            letter-spacing: 0.02em;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 10px;
        }

        .faq-arrow {
            flex-shrink: 0;
            transition: transform 0.3s ease;
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

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

        /* ===== CTA区域 ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #252540 100%);
            color: #ffffff;
            text-align: center;
            padding: 56px 24px;
            border-radius: 20px;
            margin: 40px 0;
        }

        .cta-section h2 {
            font-family: "Noto Serif SC", "STSong", serif;
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            font-size: 1rem;
            letter-spacing: 0.03em;
        }

        .btn-accent {
            display: inline-block;
            background: var(--color-accent);
            color: #1a1a2e;
            font-weight: 700;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            letter-spacing: 0.04em;
            font-size: 0.95rem;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            cursor: pointer;
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            color: #ffffff;
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-block;
            border: 2px solid var(--color-accent);
            color: var(--color-accent-dark);
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            letter-spacing: 0.04em;
            font-size: 0.9rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--color-accent);
            color: #1a1a2e;
            box-shadow: var(--shadow-btn);
        }

        /* ===== 往期回顾卡片 ===== */
        .review-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 3 / 2;
            cursor: pointer;
            transition: all var(--transition-smooth);
        }

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

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

        .review-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(26, 26, 46, 0.78) 0%, rgba(26, 26, 46, 0.15) 55%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 18px;
            color: #ffffff;
        }

        .review-overlay h4 {
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }
        .review-overlay span {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.02em;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner {
                min-height: 300px;
            }
            .page-banner-content h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .event-card-img {
                height: 170px;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner-content h1 {
                font-size: 1.6rem;
            }
            .page-banner-content p {
                font-size: 0.95rem;
            }
            .section-padding {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .schedule-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .schedule-date {
                width: 48px;
                height: 48px;
            }
            .schedule-date .day {
                font-size: 1.15rem;
            }
            .cta-section {
                padding: 36px 18px;
                border-radius: 14px;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .event-card-img {
                height: 180px;
            }
            .review-card {
                aspect-ratio: 4 / 3;
            }
        }

        @media (max-width: 520px) {
            .nav-inner {
                height: 56px;
                padding: 0 14px;
            }
            .nav-logo {
                font-size: 1.15rem;
            }
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner-content h1 {
                font-size: 1.35rem;
            }
            .page-banner-content p {
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .section-subtitle {
                font-size: 0.88rem;
                margin-bottom: 22px;
            }
            .section-padding {
                padding: 28px 0;
            }
            .event-card-body {
                padding: 14px 16px 16px;
            }
            .event-card h3 {
                font-size: 1rem;
            }
            .highlight-card {
                padding: 20px 14px;
            }
            .highlight-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
            }
            .cta-section h2 {
                font-size: 1.2rem;
            }
            .btn-accent {
                padding: 11px 24px;
                font-size: 0.88rem;
            }
            .review-card {
                aspect-ratio: 3 / 2;
            }
        }

/* roulang page: category5 */
:root {
            --color-brand-800: #1a3658;
            --color-brand-700: #2d4f72;
            --color-brand-600: #45698c;
            --color-accent-500: #d99a35;
            --color-accent-400: #efb34e;
            --color-surface: #f8fafb;
            --color-soft: #eef2f6;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-weak: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-card: 0.875rem;
            --radius-btn: 0.5rem;
            --radius-pill: 9999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 28px rgba(0, 0, 0, 0.06);
            --shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.06);
            --transition-base: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s 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;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            line-height: 1.65;
            color: #1e293b;
            background-color: #f8fafb;
            min-height: 100vh;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        /* ── Navigation ── */
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 60px;
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: #1a3658;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-base);
        }
        .nav-logo:hover {
            color: #2d4f72;
        }

        .nav-links-desktop {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
        }
        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }
        .nav-links-desktop li a:hover {
            color: #1a3658;
            background: #f1f5f9;
        }
        .nav-links-desktop li a.nav-active {
            color: #1a3658;
            font-weight: 600;
            background: #eef2f6;
        }
        .nav-links-desktop li a.nav-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: #d99a35;
            border-radius: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 101;
        }
        .nav-hamburger span {
            display: block;
            width: 24px;
            height: 2.2px;
            background: #334155;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-hamburger.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 99;
            flex-direction: column;
            padding: 1.5rem;
            gap: 0.35rem;
            overflow-y: auto;
        }
        .mobile-nav-overlay.show {
            display: flex;
        }
        .mobile-nav-overlay a {
            display: block;
            padding: 0.8rem 1.2rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: #334155;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.nav-active {
            background: #eef2f6;
            color: #1a3658;
            font-weight: 600;
        }

        @media (max-width: 900px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
        }
        @media (min-width: 901px) {
            .mobile-nav-overlay {
                display: none !important;
            }
            .nav-hamburger {
                display: none;
            }
        }

        /* ── Banner ── */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 36, 64, 0.82) 0%,
                    rgba(26, 54, 88, 0.7) 50%,
                    rgba(45, 79, 114, 0.55) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 1240px;
            margin: 0 auto;
            padding: 2.5rem 1.5rem;
            width: 100%;
        }
        .page-banner-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.6rem;
            letter-spacing: 0.03em;
        }
        .page-banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            max-width: 600px;
            line-height: 1.7;
        }
        .banner-breadcrumb {
            display: flex;
            gap: 0.4rem;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1rem;
        }
        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-base);
        }
        .banner-breadcrumb a:hover {
            color: #fff;
        }
        .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 240px;
            }
            .page-banner-content h1 {
                font-size: 1.75rem;
            }
            .page-banner-content p {
                font-size: 0.95rem;
            }
        }

        /* ── Container ── */
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ── Section Spacing ── */
        .section-spacing {
            padding: 3.5rem 0;
        }
        @media (max-width: 768px) {
            .section-spacing {
                padding: 2.5rem 0;
            }
        }

        /* ── Cards ── */
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }
        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .channel-card {
            text-align: center;
            padding: 2rem 1.5rem;
        }
        .channel-card .icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        .channel-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #1e293b;
            margin: 0 0 0.5rem;
        }
        .channel-card p {
            font-size: 0.9rem;
            color: #64748b;
            margin: 0;
            line-height: 1.6;
        }

        /* ── FAQ ── */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 1.2rem 0;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            color: #1e293b;
            gap: 1rem;
            user-select: none;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #eef2f6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #64748b;
            transition: all var(--transition-base);
            font-weight: 700;
        }
        .faq-item.open .faq-icon {
            background: #1a3658;
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s;
            color: #475569;
            font-size: 0.92rem;
            line-height: 1.75;
            padding-right: 2.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 0.8rem;
            padding-bottom: 0.3rem;
        }

        /* ── CTA Section ── */
        .cta-section {
            background: linear-gradient(150deg, #1a3658 0%, #0f2440 60%, #09162b 100%);
            border-radius: 1.25rem;
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(217, 154, 53, 0.12);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin: 0 0 0.8rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            margin: 0 0 1.8rem;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #d99a35;
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.8rem;
            border-radius: var(--radius-pill);
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            position: relative;
            z-index: 1;
            text-decoration: none;
        }
        .btn-accent:hover {
            background: #c48828;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(217, 154, 53, 0.35);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            font-weight: 500;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            transition: all var(--transition-smooth);
            position: relative;
            z-index: 1;
            text-decoration: none;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ── Footer ── */
        .site-footer {
            background: #0f2440;
            color: #fff;
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.4fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 1rem;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition-base);
            text-decoration: none;
        }
        .site-footer ul li a:hover {
            color: #efb34e;
        }
        .footer-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 0.6rem;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-section {
                padding: 2rem 1.5rem;
                border-radius: 1rem;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
        }

        /* ── Stats row ── */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            text-align: center;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 1.8rem 1.2rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
        }
        .stat-card .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: #1a3658;
            letter-spacing: 0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            margin-top: 0.3rem;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stat-card .stat-num {
                font-size: 1.5rem;
            }
        }

        /* ── Help category grid ── */
        .help-cat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 900px) {
            .help-cat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .help-cat-grid {
                grid-template-columns: 1fr;
            }
        }
        .help-cat-card {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            background: #fff;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .help-cat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .help-cat-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            display: block;
        }
        .help-cat-card .cat-body {
            padding: 1.2rem;
        }
        .help-cat-card .cat-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #1e293b;
            margin: 0 0 0.35rem;
        }
        .help-cat-card .cat-body p {
            font-size: 0.82rem;
            color: #64748b;
            margin: 0;
            line-height: 1.55;
        }

        /* ── Contact detail block ── */
        .contact-detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }
        @media (max-width: 768px) {
            .contact-detail-grid {
                grid-template-columns: 1fr;
            }
        }
        .contact-info-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .contact-info-list li {
            display: flex;
            gap: 0.8rem;
            align-items: flex-start;
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .contact-info-list li:first-child {
            border-top: 1px solid var(--color-border-light);
        }
        .contact-info-list .ci-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #eef2f6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .contact-info-list .ci-text strong {
            display: block;
            font-size: 0.9rem;
            color: #1e293b;
            margin-bottom: 0.15rem;
        }
        .contact-info-list .ci-text span {
            font-size: 0.82rem;
            color: #64748b;
        }

        /* focus */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid #45698c;
            outline-offset: 2px;
            border-radius: 2px;
        }