/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --color-primary: #0a1628;
        --color-primary-light: #132244;
        --color-accent: #d42026;
        --color-accent-hover: #b81a1f;
        --color-gold: #e8a838;
        --color-gold-light: #f5d68a;
        --color-bg: #f5f7fa;
        --color-bg-alt: #eef1f5;
        --color-white: #ffffff;
        --color-text: #1a1a2e;
        --color-text-secondary: #5a5a7a;
        --color-text-light: #8a8aaa;
        --color-border: #e2e5ec;
        --color-shadow: rgba(10, 22, 40, 0.08);
        --color-shadow-hover: rgba(10, 22, 40, 0.15);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-card: 0 2px 12px var(--color-shadow);
        --shadow-card-hover: 0 8px 30px var(--color-shadow-hover);
        --shadow-nav: 0 2px 20px rgba(0,0,0,0.06);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        --max-width: 1200px;
        --header-height: 72px;
        --tab-bar-height: 64px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
        font-family: var(--font-family);
        font-size: 16px;
        line-height: 1.7;
        color: var(--color-text);
        background: var(--color-bg);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        padding-bottom: var(--tab-bar-height);
    }
    @media (min-width: 769px) { body { padding-bottom: 0; } }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    a { color: var(--color-accent); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--color-accent-hover); }
    a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
    button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
    button:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
    input, textarea { font-family: inherit; font-size: 1rem; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--color-primary); font-weight: 700; }
    h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
    h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
    h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
    h4 { font-size: 1.15rem; }

    /* ===== Container ===== */
    .container {
        width: 100%;
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 20px;
    }
    @media (max-width: 768px) { .container { padding: 0 16px; } }

    /* ===== Header / Navigation ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: var(--color-white);
        box-shadow: var(--shadow-nav);
        height: var(--header-height);
        display: flex;
        align-items: center;
        border-bottom: 1px solid var(--color-border);
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .logo {
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--color-primary);
        letter-spacing: -0.02em;
        display: flex;
        align-items: center;
        gap: 10px;
        white-space: nowrap;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        background: var(--color-accent);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 1.1rem;
        flex-shrink: 0;
    }
    .logo-icon i { font-size: 1.1rem; }
    .logo span { color: var(--color-accent); }
    .logo:hover { color: var(--color-primary); }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .main-nav a {
        padding: 8px 18px;
        border-radius: 50px;
        color: var(--color-text-secondary);
        font-weight: 500;
        font-size: 0.9rem;
        transition: var(--transition);
        position: relative;
    }
    .main-nav a:hover { color: var(--color-primary); background: var(--color-bg); }
    .main-nav a.active {
        color: var(--color-white);
        background: var(--color-accent);
        box-shadow: 0 4px 15px rgba(212, 32, 38, 0.3);
    }
    .main-nav a.active:hover { background: var(--color-accent-hover); color: #fff; }
    .nav-cta {
        background: var(--color-accent) !important;
        color: #fff !important;
        padding: 8px 22px !important;
        border-radius: 50px !important;
        font-weight: 600 !important;
        box-shadow: 0 4px 15px rgba(212, 32, 38, 0.25);
    }
    .nav-cta:hover { background: var(--color-accent-hover) !important; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(212, 32, 38, 0.35) !important; }
    .mobile-menu-toggle { display: none; font-size: 1.4rem; color: var(--color-primary); padding: 8px; border-radius: 8px; }
    .mobile-menu-toggle:hover { background: var(--color-bg); }

    /* ===== Mobile Tab Bar ===== */
    .tab-bar {
        display: none;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: var(--color-white);
        box-shadow: 0 -2px 20px rgba(0,0,0,0.07);
        height: var(--tab-bar-height);
        border-top: 1px solid var(--color-border);
        padding: 0 12px;
        align-items: center;
        justify-content: space-around;
    }
    .tab-bar a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        padding: 6px 16px;
        border-radius: 12px;
        color: var(--color-text-light);
        font-size: 0.7rem;
        font-weight: 500;
        transition: var(--transition);
        min-width: 64px;
    }
    .tab-bar a i { font-size: 1.25rem; transition: var(--transition); }
    .tab-bar a:hover { color: var(--color-text-secondary); background: var(--color-bg); }
    .tab-bar a.active { color: var(--color-accent); }
    .tab-bar a.active i { transform: scale(1.05); }
    .tab-bar a span { line-height: 1.2; }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 85vh;
        display: flex;
        align-items: center;
        margin-top: var(--header-height);
        background: var(--color-primary);
        overflow: hidden;
    }
    .hero-bg {
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        opacity: 0.4;
        z-index: 0;
    }
    .hero-bg::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10,22,40,0.85) 0%, rgba(10,22,40,0.5) 50%, rgba(10,22,40,0.75) 100%);
        z-index: 1;
    }
    .hero .container {
        position: relative;
        z-index: 2;
        padding-top: 40px;
        padding-bottom: 60px;
    }
    .hero-content { max-width: 720px; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(232, 168, 56, 0.15);
        border: 1px solid rgba(232, 168, 56, 0.3);
        padding: 6px 18px;
        border-radius: 50px;
        color: var(--color-gold-light);
        font-size: 0.8rem;
        font-weight: 600;
        margin-bottom: 24px;
        backdrop-filter: blur(4px);
    }
    .hero-badge i { color: var(--color-gold); }
    .hero h1 {
        font-size: clamp(2.2rem, 5.5vw, 3.6rem);
        color: var(--color-white);
        line-height: 1.1;
        margin-bottom: 20px;
        font-weight: 800;
        letter-spacing: -0.02em;
    }
    .hero h1 span { color: var(--color-gold); }
    .hero p {
        font-size: clamp(1rem, 2vw, 1.2rem);
        color: rgba(255,255,255,0.8);
        line-height: 1.7;
        margin-bottom: 32px;
        max-width: 600px;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        align-items: center;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 32px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.95rem;
        transition: var(--transition);
        border: none;
        cursor: pointer;
    }
    .btn-primary {
        background: var(--color-accent);
        color: var(--color-white);
        box-shadow: 0 4px 20px rgba(212, 32, 38, 0.35);
    }
    .btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(212, 32, 38, 0.45); color: #fff; }
    .btn-outline-light {
        background: transparent;
        color: var(--color-white);
        border: 2px solid rgba(255,255,255,0.3);
    }
    .btn-outline-light:hover { border-color: var(--color-white); background: rgba(255,255,255,0.08); transform: translateY(-2px); color: #fff; }
    .hero-stats {
        display: flex;
        gap: 40px;
        margin-top: 48px;
        padding-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
    .hero-stat { text-align: left; }
    .hero-stat .num {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--color-gold);
        line-height: 1;
    }
    .hero-stat .label {
        font-size: 0.8rem;
        color: rgba(255,255,255,0.6);
        margin-top: 4px;
    }

    /* ===== Section通用 ===== */
    .section {
        padding: 80px 0;
    }
    .section-alt { background: var(--color-bg-alt); }
    .section-dark {
        background: var(--color-primary);
        color: rgba(255,255,255,0.85);
    }
    .section-dark h2,
    .section-dark .section-title,
    .section-dark .section-subtitle { color: var(--color-white); }
    .section-header {
        text-align: center;
        max-width: 700px;
        margin: 0 auto 48px;
    }
    .section-header h2 { margin-bottom: 12px; }
    .section-subtitle {
        color: var(--color-text-secondary);
        font-size: 1.05rem;
        line-height: 1.6;
    }
    .section-badge {
        display: inline-block;
        padding: 4px 16px;
        border-radius: 50px;
        background: rgba(212, 32, 38, 0.08);
        color: var(--color-accent);
        font-size: 0.8rem;
        font-weight: 600;
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }
    .section-dark .section-badge { background: rgba(232, 168, 56, 0.15); color: var(--color-gold-light); }

    /* ===== 卡片网格 ===== */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 24px;
    }
    .card {
        background: var(--color-white);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        transition: var(--transition);
        border: 1px solid var(--color-border);
        display: flex;
        flex-direction: column;
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: transparent; }
    .card-img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        border-radius: 0;
        flex-shrink: 0;
    }
    .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
    .card-tag {
        display: inline-block;
        padding: 2px 12px;
        border-radius: 50px;
        background: rgba(212, 32, 38, 0.08);
        color: var(--color-accent);
        font-size: 0.75rem;
        font-weight: 600;
        margin-bottom: 10px;
        align-self: flex-start;
    }
    .card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--color-primary); }
    .card p { color: var(--color-text-secondary); font-size: 0.9rem; line-height: 1.6; flex: 1; }
    .card-meta {
        margin-top: 14px;
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 0.8rem;
        color: var(--color-text-light);
        border-top: 1px solid var(--color-border);
        padding-top: 14px;
    }
    .card-meta i { margin-right: 4px; }
    .card-link { margin-top: 14px; }
    .card-link a {
        color: var(--color-accent);
        font-weight: 600;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .card-link a:hover { gap: 10px; }

    /* ===== 特色板块（图文交替） ===== */
    .feature-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }
    .feature-image img {
        width: 100%;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card-hover);
    }
    .feature-content h3 { margin-bottom: 16px; font-size: 1.6rem; }
    .feature-content p { color: var(--color-text-secondary); margin-bottom: 20px; line-height: 1.7; }
    .feature-list { display: flex; flex-direction: column; gap: 12px; }
    .feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        color: var(--color-text-secondary);
        font-size: 0.95rem;
    }
    .feature-list li i { color: var(--color-accent); margin-top: 4px; flex-shrink: 0; font-size: 1.1rem; }

    /* ===== 数据/统计 ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        text-align: center;
    }
    .stat-item {
        padding: 32px 16px;
        background: rgba(255,255,255,0.05);
        border-radius: var(--radius-md);
        border: 1px solid rgba(255,255,255,0.08);
        backdrop-filter: blur(8px);
    }
    .stat-item .num {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--color-gold);
        line-height: 1;
    }
    .stat-item .label {
        font-size: 0.85rem;
        color: rgba(255,255,255,0.7);
        margin-top: 8px;
    }
    .stat-item i {
        font-size: 1.8rem;
        color: var(--color-gold);
        margin-bottom: 12px;
        opacity: 0.6;
    }

    /* ===== 最新资讯列表 (CMS) ===== */
    .news-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .news-item {
        display: flex;
        align-items: center;
        gap: 20px;
        background: var(--color-white);
        padding: 18px 24px;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--color-border);
        transition: var(--transition);
    }
    .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-card-hover); border-color: transparent; }
    .news-item .tag {
        flex-shrink: 0;
        padding: 4px 14px;
        border-radius: 50px;
        background: rgba(212, 32, 38, 0.08);
        color: var(--color-accent);
        font-size: 0.75rem;
        font-weight: 600;
    }
    .news-item .title {
        flex: 1;
        font-weight: 600;
        color: var(--color-primary);
        font-size: 0.95rem;
    }
    .news-item .title a { color: inherit; }
    .news-item .title a:hover { color: var(--color-accent); }
    .news-item .date {
        flex-shrink: 0;
        font-size: 0.8rem;
        color: var(--color-text-light);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .news-empty {
        text-align: center;
        padding: 48px 20px;
        background: var(--color-white);
        border-radius: var(--radius-md);
        color: var(--color-text-light);
        font-size: 1rem;
        border: 1px dashed var(--color-border);
    }

    /* ===== FAQ ===== */
    .faq-grid {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: var(--color-white);
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { border-color: transparent; box-shadow: var(--shadow-card); }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 24px;
        font-weight: 600;
        color: var(--color-primary);
        cursor: pointer;
        font-size: 0.95rem;
        gap: 16px;
        background: none;
        width: 100%;
        text-align: left;
        border: none;
    }
    .faq-question i { color: var(--color-accent); transition: var(--transition); font-size: 0.9rem; }
    .faq-item.open .faq-question i { transform: rotate(180deg); }
    .faq-answer {
        padding: 0 24px 18px;
        color: var(--color-text-secondary);
        font-size: 0.9rem;
        line-height: 1.7;
        display: none;
    }
    .faq-item.open .faq-answer { display: block; }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--color-primary) 0%, #1a2a4a 100%);
        padding: 80px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
        opacity: 0.08;
        z-index: 0;
    }
    .cta-section .container { position: relative; z-index: 1; }
    .cta-section h2 { color: var(--color-white); font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: 16px; }
    .cta-section p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 32px; font-size: 1.05rem; }
    .cta-section .btn-primary { font-size: 1.05rem; padding: 16px 40px; }
    .cta-section .btn-outline-light { margin-left: 12px; }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--color-primary);
        color: rgba(255,255,255,0.7);
        padding: 48px 0 24px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }
    .footer-brand .logo { color: var(--color-white); margin-bottom: 12px; font-size: 1.1rem; }
    .footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 300px; color: rgba(255,255,255,0.6); }
    .footer-col h4 { color: var(--color-white); font-size: 0.9rem; margin-bottom: 16px; font-weight: 600; }
    .footer-col a {
        display: block;
        color: rgba(255,255,255,0.6);
        font-size: 0.85rem;
        padding: 4px 0;
        transition: var(--transition);
    }
    .footer-col a:hover { color: var(--color-gold); padding-left: 4px; }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06);
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.8rem;
        color: rgba(255,255,255,0.4);
    }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: rgba(255,255,255,0.06);
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255,255,255,0.6);
        font-size: 0.9rem;
        transition: var(--transition);
    }
    .footer-social a:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .feature-grid { gap: 40px; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }

    @media (max-width: 768px) {
        :root { --header-height: 64px; --tab-bar-height: 60px; }
        .site-header { height: var(--header-height); }
        .main-nav { display: none; }
        .mobile-menu-toggle { display: block; }
        .tab-bar { display: flex; }
        .hero { min-height: 70vh; margin-top: var(--header-height); }
        .hero h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
        .hero p { font-size: 0.95rem; }
        .hero-stats { gap: 24px; flex-wrap: wrap; }
        .hero-stat .num { font-size: 1.4rem; }
        .section { padding: 48px 0; }
        .card-grid { grid-template-columns: 1fr; gap: 16px; }
        .feature-grid { grid-template-columns: 1fr; gap: 32px; }
        .feature-content h3 { font-size: 1.3rem; }
        .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .stat-item { padding: 24px 12px; }
        .stat-item .num { font-size: 1.8rem; }
        .news-item { flex-wrap: wrap; gap: 12px; padding: 14px 16px; }
        .news-item .tag { font-size: 0.7rem; }
        .news-item .title { font-size: 0.9rem; width: 100%; order: -1; }
        .news-item .date { font-size: 0.75rem; }
        .faq-question { padding: 14px 16px; font-size: 0.9rem; }
        .faq-answer { padding: 0 16px 14px; }
        .cta-section { padding: 48px 0; }
        .cta-section .btn-outline-light { margin-left: 0; margin-top: 12px; }
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .section-header { margin-bottom: 32px; }
    }

    @media (max-width: 480px) {
        .container { padding: 0 12px; }
        .hero-actions { flex-direction: column; align-items: stretch; }
        .hero-actions .btn { justify-content: center; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
        .card-img { height: 160px; }
    }

    /* ===== 移动端菜单面板 ===== */
    .mobile-panel {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 999;
        background: var(--color-white);
        padding: 24px 20px;
        display: none;
        flex-direction: column;
        gap: 8px;
        overflow-y: auto;
        border-top: 1px solid var(--color-border);
        box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }
    .mobile-panel.open { display: flex; }
    .mobile-panel a {
        padding: 14px 18px;
        border-radius: var(--radius-sm);
        color: var(--color-text);
        font-weight: 500;
        font-size: 1.05rem;
        transition: var(--transition);
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .mobile-panel a i { width: 24px; color: var(--color-text-light); }
    .mobile-panel a:hover { background: var(--color-bg); }
    .mobile-panel a.active { color: var(--color-accent); background: rgba(212,32,38,0.06); }
    .mobile-panel a.active i { color: var(--color-accent); }

    /* ===== 辅助 ===== */
    .text-center { text-align: center; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mt-32 { margin-top: 32px; }
    .gap-8 { gap: 8px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a2a6c;
            --color-primary-light: #2d4a9e;
            --color-primary-dark: #0f1b47;
            --color-gold: #d4a84b;
            --color-gold-light: #e8c56d;
            --color-gold-dark: #b8892e;
            --color-accent: #c0392b;
            --color-bg: #f8f9fc;
            --color-bg-alt: #eef1f7;
            --color-bg-dark: #0d1b2a;
            --color-text: #1c2331;
            --color-text-light: #5a6478;
            --color-text-white: #f0f2f5;
            --color-border: #dce1e8;
            --color-border-light: #e9edf3;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
            --shadow-gold: 0 4px 20px rgba(212, 168, 75, 0.35);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-width: 1180px;
            --nav-height: 72px;
            --gap: 24px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--color-primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-gold); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--color-primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        p { margin-bottom: 1rem; }
        .container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--gap); }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            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: 0 1px 6px rgba(0,0,0,0.03);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 var(--gap);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            text-decoration: none;
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-gold));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(26,42,108,0.25);
        }
        .logo span { color: var(--color-gold); }
        .main-nav { display: flex; align-items: center; gap: 6px; }
        .main-nav a {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(26,42,108,0.06);
        }
        .main-nav a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            box-shadow: 0 4px 14px rgba(26,42,108,0.25);
        }
        .main-nav a.nav-cta {
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            color: #1a1a2e;
            font-weight: 600;
            padding: 8px 22px;
            box-shadow: var(--shadow-gold);
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212,168,75,0.4);
        }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--color-primary); cursor: pointer; padding: 6px; }

        /* ===== 底部Tab导航 ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border-light);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
        }
        .bottom-tab-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: 12px;
            transition: var(--transition);
            min-width: 56px;
            text-decoration: none;
        }
        .bottom-tab-nav a i { font-size: 1.2rem; }
        .bottom-tab-nav a.active { color: var(--color-primary); background: rgba(26,42,108,0.08); }
        .bottom-tab-nav a:hover { color: var(--color-primary); background: rgba(26,42,108,0.05); }

        /* ===== 文章Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1a2a4a 100%);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--color-bg), transparent);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-banner h1 {
            color: var(--color-text-white);
            font-weight: 800;
            margin-bottom: 14px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px 28px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.75);
            font-size: 0.92rem;
        }
        .article-meta i { margin-right: 6px; color: var(--color-gold); }
        .article-meta .category-badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(212,168,75,0.2);
            border: 1px solid rgba(212,168,75,0.3);
            border-radius: 30px;
            color: var(--color-gold-light);
            font-weight: 500;
            font-size: 0.85rem;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
        }
        .breadcrumb a { color: rgba(255,255,255,0.7); }
        .breadcrumb a:hover { color: var(--color-gold); }
        .breadcrumb .sep { opacity: 0.4; }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--color-bg);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 50px;
            align-items: start;
        }
        .article-body {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .article-body .article-featured-img {
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            width: 100%;
            max-height: 480px;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text);
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
        }
        .article-body .content p {
            margin-bottom: 1.2em;
        }
        .article-body .content ul,
        .article-body .content ol {
            margin-bottom: 1.2em;
            padding-left: 1.5em;
        }
        .article-body .content li {
            margin-bottom: 0.4em;
            list-style: disc;
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--color-gold);
            background: var(--color-bg-alt);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-light);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content a {
            color: var(--color-primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body .content a:hover { color: var(--color-gold); }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i {
            font-size: 3.6rem;
            color: var(--color-gold);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--color-text-light);
            margin-bottom: 24px;
        }
        .article-not-found .btn-home {
            display: inline-block;
            padding: 12px 32px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-home:hover {
            background: var(--color-gold);
            color: #1a1a2e;
            transform: translateY(-2px);
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-gold);
            display: inline-block;
        }
        .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .sidebar-card ul li:last-child { border-bottom: none; }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--color-text-light);
        }
        .sidebar-card ul li a:hover { color: var(--color-primary); }
        .sidebar-card ul li a i { color: var(--color-gold); width: 18px; font-size: 0.85rem; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            text-align: center;
            padding: 32px 24px;
        }
        .sidebar-cta h3 { color: #fff; border-bottom-color: var(--color-gold); }
        .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.92rem; margin: 12px 0 18px; }
        .sidebar-cta .btn-gold {
            display: inline-block;
            padding: 10px 28px;
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            color: #1a1a2e;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
        }
        .sidebar-cta .btn-gold:hover { transform: translateY(-2px); box-shadow: var(--shadow-gold); }

        /* ===== 推荐文章 ===== */
        .related-section {
            background: var(--color-bg-alt);
            padding: 60px 0;
        }
        .related-section h2 {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 18px 20px 20px;
        }
        .related-card .card-body h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .related-card .card-body h4 a { color: var(--color-primary); }
        .related-card .card-body h4 a:hover { color: var(--color-gold); }
        .related-card .card-body .date {
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        /* ===== CTA ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--color-bg-dark), #0d1b2a);
            text-align: center;
            color: #fff;
        }
        .article-cta h2 {
            color: #fff;
            margin-bottom: 12px;
        }
        .article-cta p {
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .article-cta .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-cta .btn-primary {
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
            color: #1a1a2e;
            font-weight: 700;
            border-radius: 40px;
            transition: var(--transition);
            font-size: 1rem;
        }
        .article-cta .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold);
        }
        .article-cta .btn-outline {
            padding: 14px 36px;
            border: 2px solid rgba(255,255,255,0.25);
            color: #fff;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-cta .btn-outline:hover {
            border-color: var(--color-gold);
            color: var(--color-gold);
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; font-size: 1.3rem; margin-bottom: 14px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 340px; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--color-gold); padding-left: 4px; }
        .footer-social { display: flex; gap: 12px; margin-top: 16px; }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            padding: 0;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-gold);
            color: #1a1a2e;
            padding: 0;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .main-nav { display: none; }
            .nav-toggle { display: block; }
            .bottom-tab-nav { display: flex; }
            .site-header { border-bottom: none; box-shadow: none; }
            .header-inner { height: 64px; }
            .logo { font-size: 1.15rem; }
            .logo .logo-icon { width: 34px; height: 34px; font-size: 1rem; }

            .article-banner { padding: 50px 0 40px; min-height: 220px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-meta { font-size: 0.82rem; gap: 10px; }

            .article-body { padding: 24px 20px; }
            .article-body .content { font-size: 0.98rem; }

            .related-grid { grid-template-columns: 1fr; }

            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .article-cta .btn-group { flex-direction: column; align-items: center; }
            .sidebar-card { padding: 20px 18px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner h1 { font-size: 1.35rem; }
            .article-body { padding: 18px 14px; }
            .article-body .content { font-size: 0.92rem; }
            .bottom-tab-nav a { min-width: 48px; padding: 4px 8px; font-size: 0.65rem; }
            .bottom-tab-nav a i { font-size: 1.05rem; }
        }

        /* ===== 移动端导航抽屉 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 2000;
            background: rgba(0,0,0,0.4);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .mobile-drawer.open { display: block; }
        .mobile-drawer .drawer-content {
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 100%;
            background: #fff;
            padding: 30px 24px;
            box-shadow: -10px 0 40px rgba(0,0,0,0.15);
            overflow-y: auto;
        }
        .mobile-drawer .drawer-close {
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--color-text);
            cursor: pointer;
            float: right;
            padding: 4px;
        }
        .mobile-drawer .drawer-nav { clear: both; margin-top: 30px; display: flex; flex-direction: column; gap: 8px; }
        .mobile-drawer .drawer-nav a {
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            transition: var(--transition);
        }
        .mobile-drawer .drawer-nav a:hover { background: var(--color-bg-alt); }
        .mobile-drawer .drawer-nav a.active { background: var(--color-primary); color: #fff; }
        .mobile-drawer .drawer-nav a.nav-cta { background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark)); color: #1a1a2e; text-align: center; margin-top: 8px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #1a2a4a;
            --color-primary-light: #2c3e6b;
            --color-primary-dark: #0f1a2e;
            --color-accent: #e63946;
            --color-accent-hover: #d62a38;
            --color-gold: #f0b429;
            --color-gold-light: #f7d674;
            --color-bg: #f5f7fa;
            --color-bg-alt: #eef1f5;
            --color-bg-dark: #0f1a2e;
            --color-text: #1e2a3a;
            --color-text-light: #5a6b7d;
            --color-text-lighter: #8a9bab;
            --color-white: #ffffff;
            --color-border: #dce2ea;
            --color-border-light: #e8edf3;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 30px rgba(240,180,41,0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --header-height: 72px;
            --footer-bg: #0f1a2e;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
            padding-bottom: 0;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-accent); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; outline: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 0.8rem; color: var(--color-text-light); }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow { max-width: 900px; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(26, 42, 74, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 2px 20px rgba(0,0,0,0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-white);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-icon {
            font-size: 1.6rem;
            color: var(--color-gold);
        }
        .logo span { color: var(--color-gold); }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255,255,255,0.78);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--color-white);
            background: rgba(255,255,255,0.08);
        }
        .main-nav a.active {
            color: var(--color-white);
            background: rgba(255,255,255,0.12);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 3px;
        }
        .main-nav a.nav-cta {
            background: var(--color-accent);
            color: var(--color-white);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(230,57,70,0.35);
            margin-left: 8px;
        }
        .main-nav a.nav-cta:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230,57,70,0.45);
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--color-white);
            background: none;
            border: none;
            padding: 8px;
        }

        /* ===== Mobile Bottom Tab ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(26, 42, 74, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.6);
            font-size: 0.7rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 60px;
        }
        .bottom-tab-nav .tab-item i { font-size: 1.3rem; }
        .bottom-tab-nav .tab-item.active { color: var(--color-gold); }
        .bottom-tab-nav .tab-item:hover { color: var(--color-white); background: rgba(255,255,255,0.06); }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
            overflow: hidden;
            padding: 80px 0 70px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(240,180,41,0.08) 0%, transparent 60%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            padding: 0 24px;
        }
        .hero-content .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240,180,41,0.15);
            color: var(--color-gold);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(240,180,41,0.2);
        }
        .hero-content h1 {
            color: var(--color-white);
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .hero-content h1 span { color: var(--color-gold); }
        .hero-content p {
            color: rgba(255,255,255,0.8);
            font-size: 1.15rem;
            line-height: 1.8;
            max-width: 640px;
            margin: 0 auto 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-white);
            box-shadow: 0 4px 20px rgba(230,57,70,0.35);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230,57,70,0.45);
            color: var(--color-white);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--color-white);
            border: 2px solid rgba(255,255,255,0.3);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--color-white);
            color: var(--color-white);
            transform: translateY(-2px);
        }
        .btn-gold {
            background: var(--color-gold);
            color: var(--color-primary-dark);
            box-shadow: 0 4px 20px rgba(240,180,41,0.35);
        }
        .btn-gold:hover {
            background: var(--color-gold-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(240,180,41,0.45);
            color: var(--color-primary-dark);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt { background: var(--color-bg-alt); }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-white);
        }
        .section-dark h2, .section-dark h3 { color: var(--color-white); }
        .section-dark p { color: rgba(255,255,255,0.7); }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 { margin-bottom: 14px; }
        .section-header p {
            max-width: 620px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        .section-header .section-tag {
            display: inline-block;
            background: rgba(230,57,70,0.08);
            color: var(--color-accent);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        /* ===== Cards Grid ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .feature-card .icon-box {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--color-white);
        }
        .feature-card .icon-box.icon-red { background: var(--color-accent); }
        .feature-card .icon-box.icon-gold { background: var(--color-gold); color: var(--color-primary-dark); }
        .feature-card .icon-box.icon-blue { background: var(--color-primary-light); }
        .feature-card h3 { margin-bottom: 12px; font-size: 1.25rem; }
        .feature-card p { font-size: 0.95rem; margin-bottom: 0; }

        /* ===== Category Cards ===== */
        .cat-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .cat-card .cat-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .cat-card .cat-img .cat-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: var(--color-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .cat-card .cat-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-card .cat-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .cat-card .cat-body p { font-size: 0.92rem; margin-bottom: 16px; flex: 1; }
        .cat-card .cat-body .cat-link {
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cat-card .cat-body .cat-link:hover { gap: 12px; }

        /* ===== Steps / Flow ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(240,180,41,0.3);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-gold);
            color: var(--color-primary-dark);
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-card h4 { color: var(--color-white); font-size: 1.1rem; margin-bottom: 8px; }
        .step-card p { font-size: 0.9rem; margin-bottom: 0; color: rgba(255,255,255,0.6); }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--color-border); }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover { background: rgba(0,0,0,0.02); }
        .faq-item .faq-question i {
            font-size: 1.1rem;
            color: var(--color-text-lighter);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--color-accent); }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }
        .faq-item .faq-answer p { margin-bottom: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-box {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-box h2 { color: var(--color-white); margin-bottom: 16px; }
        .cta-box p { color: rgba(255,255,255,0.75); font-size: 1.1rem; margin-bottom: 32px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 16px; font-size: 1.3rem; }
        .footer-brand p { font-size: 0.92rem; color: rgba(255,255,255,0.55); line-height: 1.7; }
        .footer-col h4 {
            color: var(--color-white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.92rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--color-gold); padding-left: 4px; }
        .footer-col a i { margin-right: 8px; width: 18px; text-align: center; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            padding: 0;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-gold);
            color: var(--color-primary-dark);
            padding: 0;
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom span:last-child {
            color: rgba(255,255,255,0.3);
        }

        /* ===== Scroll to top ===== */
        .scroll-top {
            position: fixed;
            bottom: 100px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.1);
        }
        .scroll-top.visible { opacity: 1; pointer-events: auto; }
        .scroll-top:hover { background: var(--color-accent); transform: translateY(-4px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 62px; }
            body { padding-top: var(--header-height); padding-bottom: 68px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .hero-content h1 { font-size: 2.2rem; }
            .hero-section { min-height: 380px; padding: 60px 0 50px; }
            .section { padding: 56px 0; }
            .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
            .grid-2 { grid-template-columns: 1fr; gap: 20px; }
            .steps-grid { grid-template-columns: 1fr; gap: 16px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .stat-number { font-size: 2.2rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .main-nav { display: none; }
            .nav-toggle { display: block; }
            .bottom-tab-nav { display: flex; }
            .scroll-top { bottom: 80px; right: 16px; width: 42px; height: 42px; font-size: 1rem; }
            .section-header { margin-bottom: 36px; }
            .hero-content p { font-size: 1rem; }
            .btn { padding: 12px 26px; font-size: 0.95rem; }
            .feature-card { padding: 28px 20px 24px; }
            .cat-card .cat-img { height: 150px; }
            .faq-item .faq-question { padding: 14px 18px; font-size: 0.95rem; }
            .faq-item .faq-answer { padding: 0 18px 14px; }
            .logo { font-size: 1.2rem; }
            .logo .logo-icon { font-size: 1.3rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .stat-item { padding: 16px 8px; }
            .stat-item .stat-number { font-size: 2rem; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-content h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .hero-section { min-height: 320px; padding: 44px 0 40px; }
            .section { padding: 40px 0; }
            .grid-3, .grid-4, .grid-2 { gap: 16px; }
            .footer-grid { gap: 24px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .stat-item .stat-number { font-size: 1.7rem; }
            .stat-item .stat-label { font-size: 0.85rem; }
            .feature-card { padding: 24px 16px 20px; }
            .feature-card .icon-box { width: 52px; height: 52px; font-size: 1.3rem; }
            .btn { padding: 10px 22px; font-size: 0.9rem; }
            .hero-actions { flex-direction: column; gap: 12px; }
            .hero-content .hero-badge { font-size: 0.75rem; padding: 4px 14px; }
            .footer-bottom { font-size: 0.8rem; }
            .bottom-tab-nav .tab-item { min-width: 50px; padding: 4px 8px; font-size: 0.65rem; }
            .bottom-tab-nav .tab-item i { font-size: 1.1rem; }
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(26, 42, 74, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 20px 24px;
            display: none;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: var(--shadow-lg);
        }
        .mobile-drawer.open { display: flex; }
        .mobile-drawer a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.78);
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .mobile-drawer a:hover { background: rgba(255,255,255,0.08); color: var(--color-white); }
        .mobile-drawer a.active { background: rgba(255,255,255,0.12); color: var(--color-white); }
        .mobile-drawer a.nav-cta-mob {
            background: var(--color-accent);
            color: var(--color-white);
            border-radius: 50px;
            text-align: center;
            margin-top: 8px;
        }
        .mobile-drawer a.nav-cta-mob:hover { background: var(--color-accent-hover); }

        @media (min-width: 769px) {
            .mobile-drawer { display: none !important; }
            .bottom-tab-nav { display: none !important; }
        }