/* roulang page: index */
:root {
  --brand-600: #1d40ed;
  --brand-700: #1e40af;
  --brand-800: #1e3a8a;
  --accent-500: #f97316;
  --accent-600: #ea580c;
  --ink: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 46px rgba(15, 23, 42, 0.12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block; background: rgba(29, 64, 237, 0.08); color: var(--brand-700);
  font-size: 13px; font-weight: 700; letter-spacing: .08em; padding: 6px 16px;
  border-radius: 999px; margin-bottom: 16px;
}
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.45rem); font-weight: 800; line-height: 1.3; color: var(--ink); letter-spacing: -.02em; }
.section-head p { color: var(--muted); font-size: 1.08rem; margin-top: 14px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand-logo { display: inline-flex; align-items: center; gap: 9px; font-size: 1.32rem; font-weight: 900; color: var(--ink); letter-spacing: -.02em; }
.brand-icon { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, var(--brand-600), var(--brand-800)); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 15px; }
.site-nav { display: flex; gap: 6px; flex: 1; }
.nav-link { position: relative; padding: 8px 16px; border-radius: 999px; font-size: 15px; font-weight: 600; color: var(--text); transition: all .25s ease; }
.nav-link:hover { background: rgba(15, 23, 42, 0.05); color: var(--ink); }
.nav-link.active { color: var(--brand-700); background: rgba(29, 64, 237, 0.08); }
.header-tools { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; display: flex; align-items: center; }
.search-box .search-icon { position: absolute; left: 14px; color: var(--muted); font-size: 14px; pointer-events: none; }
.search-box input {
  width: 190px; border: 1px solid var(--border); border-radius: 999px;
  padding: 9px 16px 9px 40px; font-size: 14px; background: #f1f5f9; color: var(--text);
  outline: none; transition: all .25s ease;
}
.search-box input:focus { width: 230px; border-color: var(--brand-600); background: #fff; box-shadow: 0 0 0 4px rgba(29, 64, 237, 0.12); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; font-weight: 700; font-size: 14px; padding: 10px 22px; border: 0; cursor: pointer; transition: all .25s ease; }
.btn-primary { background: linear-gradient(135deg, var(--brand-600), var(--brand-700)); color: #fff; box-shadow: 0 4px 14px rgba(29, 64, 237, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(29, 64, 237, 0.35); }
.btn-accent { background: linear-gradient(135deg, var(--accent-500), var(--accent-600)); color: #fff; box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(249, 115, 22, 0.4); }
.btn-outline { border: 1.5px solid var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--brand-600); color: var(--brand-700); background: rgba(29, 64, 237, 0.04); }
.btn-ghost { color: var(--text); background: transparent; }
.btn-ghost:hover { background: rgba(15, 23, 42, 0.06); }
.btn-light { background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 12px; background: #fff; color: var(--ink); font-size: 18px; cursor: pointer; align-items: center; justify-content: center; }
.mobile-menu { display: none; padding: 18px 24px 24px; background: #fff; border-bottom: 1px solid var(--border); }
.mobile-link { display: block; padding: 12px 10px; border-radius: 10px; font-weight: 600; color: var(--text); }
.mobile-link:hover, .mobile-link.active { background: rgba(29, 64, 237, 0.08); color: var(--brand-700); }
.mobile-search { margin: 14px 0; }
.mobile-search input { width: 100%; border: 1px solid var(--border); border-radius: 12px; padding: 11px 16px; font-size: 14px; background: #f1f5f9; outline: none; }
.mobile-actions { display: flex; gap: 10px; margin-top: 12px; }
.mobile-actions .btn { flex: 1; }

/* Hero */
.hero {
  position: relative; isolation: isolate;
  background-size: cover; background-position: center;
  padding: 140px 0 120px; color: #fff;
}
.hero::before { content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, rgba(15, 23, 42, 0.9) 10%, rgba(30, 64, 175, 0.75) 55%, rgba(29, 64, 237, 0.45) 100%); }
.hero-content { max-width: 720px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.15); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.25); padding: 8px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; letter-spacing: .03em; margin-bottom: 24px; }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 900; line-height: 1.15; letter-spacing: -.03em; }
.hero-desc { font-size: clamp(1.05rem, 2vw, 1.28rem); color: rgba(255,255,255,0.85); margin-top: 22px; max-width: 600px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 48px; margin-top: 64px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,0.18); }
.hero-stats .stat strong { display: block; font-size: 2rem; font-weight: 900; }
.hero-stats .stat span { font-size: 14px; color: rgba(255,255,255,0.72); }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; transition: transform .3s ease, box-shadow .3s ease; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.card-body { padding: 28px; }
.card-icon { width: 52px; height: 52px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 18px; }
.card-title { font-size: 1.2rem; font-weight: 800; color: var(--ink); margin-bottom: 10px; }
.card-text { color: var(--muted); font-size: 0.96rem; }

/* Category Banner */
.category-banner { position: relative; isolation: isolate; border-radius: 24px; overflow: hidden; min-height: 380px; display: flex; align-items: center; background-size: cover; background-position: center; }
.category-banner::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 20%, rgba(15, 23, 42, 0.55) 70%, rgba(15, 23, 42, 0.25) 100%); }
.category-content { padding: 56px; max-width: 560px; color: #fff; }
.category-content h2 { font-size: 2.2rem; font-weight: 900; line-height: 1.2; margin-top: 16px; }
.category-content p { color: rgba(255,255,255,0.82); margin-top: 14px; font-size: 1rem; }
.badge { display: inline-block; padding: 5px 14px; border-radius: 999px; font-size: 12px; font-weight: 700; background: rgba(29, 64, 237, 0.1); color: var(--brand-700); }
.badge-light { background: rgba(255,255,255,0.18); color: #fff; border: 1px solid rgba(255,255,255,0.3); }

/* News List */
.news-list { display: grid; gap: 18px; }
.news-item { display: flex; align-items: center; gap: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px 24px; box-shadow: var(--shadow-sm); transition: all .25s ease; }
.news-item:hover { border-color: rgba(29, 64, 237, 0.3); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.news-item .news-tag { flex-shrink: 0; }
.news-item .news-body { flex: 1; min-width: 0; }
.news-item h3 { font-size: 1.1rem; font-weight: 800; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-item p { color: var(--muted); font-size: 0.92rem; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-item .news-time { flex-shrink: 0; font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

/* Feature cards with image */
.feature-card .card-img { width: 100%; height: 210px; object-fit: cover; }
.feature-card .card-category { display: inline-block; font-size: 12px; font-weight: 700; color: var(--brand-700); margin-bottom: 8px; }

/* Steps */
.step-card { text-align: center; padding: 36px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: all .25s ease; }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-num { width: 42px; height: 42px; border-radius: 50%; background: rgba(29, 64, 237, 0.1); color: var(--brand-700); font-weight: 900; font-size: 17px; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.step-card h3 { font-size: 1.05rem; font-weight: 800; color: var(--ink); }
.step-card p { color: var(--muted); font-size: 0.92rem; margin-top: 8px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-item summary { cursor: pointer; padding: 20px 24px; font-weight: 700; font-size: 1rem; color: var(--ink); display: flex; justify-content: space-between; align-items: center; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 13px; color: var(--muted); transition: transform .3s ease; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-answer { padding: 0 24px 22px; color: var(--muted); font-size: 0.95rem; }

/* CTA */
.cta-box { position: relative; border-radius: 28px; background: linear-gradient(135deg, #1e3a8a, #1d40ed); padding: 72px 56px; text-align: center; color: #fff; overflow: hidden; }
.cta-box::after { content: ''; position: absolute; width: 340px; height: 340px; border-radius: 50%; background: rgba(255,255,255,0.08); top: -150px; right: -100px; }
.cta-box h2 { font-size: 2rem; font-weight: 900; line-height: 1.3; }
.cta-box p { color: rgba(255,255,255,0.85); margin-top: 14px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-box .cta-buttons { display: flex; gap: 14px; justify-content: center; margin-top: 32px; }

/* Footer */
.site-footer { background: #0f172a; color: #94a3b8; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .footer-logo { display: inline-flex; align-items: center; gap: 9px; font-size: 1.3rem; font-weight: 900; color: #fff; }
.footer-brand p { margin-top: 16px; max-width: 340px; font-size: 14px; }
.footer-links h4, .footer-contact h4 { color: #fff; font-size: 16px; font-weight: 800; margin-bottom: 16px; }
.footer-links a { display: block; color: #94a3b8; font-size: 14px; padding: 5px 0; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-contact p { font-size: 14px; padding: 4px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; }
.footer-copy { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 13px; color: #64748b; }
.footer-copy a { color: #94a3b8; }

/* Utilities */
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; } .mt-5 { margin-top: 48px; }
.text-center { text-align: center; }

/* Responsive */
@media (max-width: 1024px) {
  .site-nav { display: none; }
  .header-tools .search-box { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-menu.active { display: block; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 0; }
  .hero { padding: 110px 0 90px; }
}
@media (max-width: 768px) {
  .header-tools .btn-login, .header-tools .btn-start { display: none; }
  .hero-stats { gap: 28px; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 10px; }
  .news-item .news-time { align-self: flex-end; }
  .news-item p { white-space: normal; }
  .cta-box { padding: 48px 24px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 70px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 18px; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .section { padding: 52px 0; }
  .section-head { margin-bottom: 40px; }
  .category-content { padding: 32px 24px; }
  .category-content h2 { font-size: 1.6rem; }
}

/* roulang page: category1 */
:root {
        --primary: #059669;
        --primary-dark: #047857;
        --primary-light: #10b981;
        --accent: #f59e0b;
        --dark: #0f172a;
        --dark-2: #1e293b;
        --light: #f8fafc;
        --text: #334155;
        --text-light: #64748b;
        --border: #e2e8f0;
        --radius: 16px;
        --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.10);
        --transition: all 0.28s ease;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
        background: var(--light);
        color: var(--text);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header / Nav ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 24px;
    }

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

    .brand-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, #059669, #10b981);
        border-radius: 10px;
        color: #fff;
        font-size: 16px;
        box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
    }

    .brand-text {
        font-size: 22px;
        font-weight: 800;
        color: var(--dark);
        letter-spacing: -0.02em;
    }

    .brand-text span {
        color: var(--primary);
    }

    .site-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        justify-content: center;
    }

    .nav-link {
        display: inline-block;
        padding: 8px 20px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 600;
        color: var(--text);
        transition: var(--transition);
        position: relative;
    }

    .nav-link:hover {
        color: var(--primary);
        background: rgba(5, 150, 105, 0.08);
    }

    .nav-link.active {
        color: #fff;
        background: var(--primary);
        box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .search-box {
        display: flex;
        align-items: center;
        background: #f1f5f9;
        border: 1px solid transparent;
        border-radius: 999px;
        height: 40px;
        padding: 0 14px;
        transition: var(--transition);
        width: 220px;
    }

    .search-box:focus-within {
        border-color: var(--primary);
        background: #fff;
        box-shadow: 0 0 0 4px rgba(5, 150, 105, 0.1);
    }

    .search-box input {
        flex: 1;
        background: transparent;
        border: none;
        font-size: 14px;
        color: var(--text);
        min-width: 0;
    }

    .search-box input::placeholder {
        color: #94a3b8;
    }

    .search-box button {
        background: transparent;
        color: #64748b;
        cursor: pointer;
        font-size: 14px;
        padding: 4px;
        transition: var(--transition);
    }

    .search-box button:hover {
        color: var(--primary);
    }

    .btn-login {
        font-size: 14px;
        font-weight: 600;
        color: var(--text);
        padding: 8px 16px;
        border-radius: 999px;
        transition: var(--transition);
    }

    .btn-login:hover {
        color: var(--primary);
        background: rgba(5, 150, 105, 0.08);
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: linear-gradient(135deg, #059669, #10b981);
        color: #fff;
        font-size: 14px;
        font-weight: 600;
        padding: 10px 22px;
        border-radius: 999px;
        cursor: pointer;
        box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
        transition: var(--transition);
        white-space: nowrap;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 22px rgba(5, 150, 105, 0.4);
    }

    .nav-toggle {
        display: none;
        background: transparent;
        font-size: 20px;
        color: var(--dark);
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
    }

    .nav-toggle:hover {
        background: #f1f5f9;
    }

    /* ===== Hero ===== */
    .category-hero {
        position: relative;
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        padding: 120px 0;
        color: #fff;
    }

    .category-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(6, 78, 59, 0.88), rgba(15, 23, 42, 0.72));
    }

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

    .hero-overline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(6px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 999px;
        padding: 6px 18px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.04em;
        margin-bottom: 24px;
    }

    .hero-overline i {
        color: #fbbf24;
    }

    .category-hero h1 {
        font-size: 52px;
        line-height: 1.1;
        font-weight: 800;
        letter-spacing: -0.02em;
        max-width: 720px;
        margin-bottom: 20px;
    }

    .category-hero p.hero-desc {
        font-size: 18px;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.85);
        max-width: 640px;
        margin-bottom: 36px;
    }

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

    .btn-hero-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: #fff;
        color: #065f46;
        font-weight: 700;
        font-size: 16px;
        padding: 14px 32px;
        border-radius: 999px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        transition: var(--transition);
    }

    .btn-hero-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
    }

    .btn-hero-ghost {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.1);
        color: #fff;
        border: 1.5px solid rgba(255, 255, 255, 0.4);
        font-weight: 600;
        font-size: 16px;
        padding: 14px 32px;
        border-radius: 999px;
        transition: var(--transition);
        backdrop-filter: blur(4px);
    }

    .btn-hero-ghost:hover {
        background: rgba(255, 255, 255, 0.2);
        border-color: #fff;
        transform: translateY(-3px);
    }

    /* ===== Section ===== */
    .section {
        padding: 80px 0;
    }

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 48px;
        flex-wrap: wrap;
    }

    .section-head .section-title {
        font-size: 32px;
        font-weight: 800;
        color: var(--dark);
        letter-spacing: -0.02em;
    }

    .section-head .section-title span {
        color: var(--primary);
    }

    .section-head .section-sub {
        font-size: 15px;
        color: var(--text-light);
        margin-top: 8px;
    }

    .section-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        padding: 8px 18px;
        border-radius: 999px;
        background: rgba(5, 150, 105, 0.08);
        transition: var(--transition);
    }

    .section-link:hover {
        background: rgba(5, 150, 105, 0.14);
        transform: translateX(4px);
    }

    /* ===== Tags ===== */
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
    }

    .tag-chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 22px;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text);
        transition: var(--transition);
        cursor: pointer;
    }

    .tag-chip i {
        color: var(--primary);
    }

    .tag-chip:hover {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        transform: translateY(-3px);
        box-shadow: 0 8px 18px rgba(5, 150, 105, 0.25);
    }

    .tag-chip:hover i {
        color: #fff;
    }

    /* ===== Event Cards ===== */
    .event-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

    .event-card {
        background: #fff;
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }

    .event-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(5, 150, 105, 0.25);
    }

    .event-cover {
        position: relative;
        height: 200px;
        overflow: hidden;
    }

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

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

    .event-cover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.5));
    }

    .event-tag {
        position: absolute;
        top: 14px;
        left: 14px;
        z-index: 2;
        background: rgba(255, 255, 255, 0.92);
        color: var(--primary-dark);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 14px;
        border-radius: 999px;
        backdrop-filter: blur(4px);
    }

    .event-tag.hot {
        background: linear-gradient(135deg, #f59e0b, #fbbf24);
        color: #78350f;
    }

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

    .event-body h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--dark);
        line-height: 1.4;
        margin-bottom: 12px;
    }

    .event-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        font-size: 13px;
        color: var(--text-light);
        margin-bottom: 16px;
    }

    .event-meta span {
        display: inline-flex;
        align-items: center;
        gap: 5px;
    }

    .event-meta i {
        color: var(--primary);
        font-size: 12px;
    }

    .event-body .event-link {
        margin-top: auto;
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .event-body .event-link:hover {
        gap: 10px;
    }

    /* ===== News List ===== */
    .news-layout {
        display: grid;
        grid-template-columns: 1fr 360px;
        gap: 40px;
    }

    .news-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .news-item {
        display: flex;
        background: #fff;
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .news-item:hover {
        box-shadow: var(--shadow-hover);
        transform: translateX(4px);
    }

    .news-thumb {
        width: 260px;
        min-height: 160px;
        flex-shrink: 0;
        position: relative;
    }

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

    .news-thumb::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, transparent, rgba(15, 23, 42, 0.1));
    }

    .news-content {
        padding: 20px 24px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .news-content .news-meta {
        display: flex;
        align-items: center;
        gap: 14px;
        margin-bottom: 8px;
        flex-wrap: wrap;
    }

    .news-content .news-date {
        font-size: 13px;
        color: var(--text-light);
        display: inline-flex;
        align-items: center;
        gap: 5px;
    }

    .news-content .news-tag {
        display: inline-block;
        background: rgba(5, 150, 105, 0.1);
        color: var(--primary-dark);
        font-size: 12px;
        font-weight: 700;
        padding: 3px 12px;
        border-radius: 999px;
    }

    .news-content h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--dark);
        line-height: 1.45;
        margin-bottom: 8px;
    }

    .news-content h3 a:hover {
        color: var(--primary);
    }

    .news-content p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.6;
        margin-bottom: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-content .news-bottom {
        margin-top: auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .news-views {
        font-size: 13px;
        color: var(--text-light);
        display: inline-flex;
        align-items: center;
        gap: 5px;
    }

    .news-more {
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
    }

    /* ===== Sidebar ===== */
    .sidebar {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .sidebar-card {
        background: #fff;
        border-radius: var(--radius);
        padding: 26px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
    }

    .sidebar-card h4 {
        font-size: 17px;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 18px;
        padding-bottom: 12px;
        border-bottom: 2px solid rgba(5, 150, 105, 0.15);
    }

    .rank-list {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .rank-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 12px;
        border-radius: 10px;
        transition: var(--transition);
    }

    .rank-item:hover {
        background: #f0fdf4;
    }

    .rank-num {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 8px;
        font-size: 13px;
        font-weight: 700;
        background: #f1f5f9;
        color: var(--text);
        flex-shrink: 0;
    }

    .rank-item:nth-child(1) .rank-num {
        background: linear-gradient(135deg, #f59e0b, #fbbf24);
        color: #78350f;
    }

    .rank-item:nth-child(2) .rank-num {
        background: linear-gradient(135deg, #94a3b8, #cbd5e1);
        color: #1e293b;
    }

    .rank-item:nth-child(3) .rank-num {
        background: linear-gradient(135deg, #d97706, #f59e0b);
        color: #fff;
    }

    .rank-text {
        flex: 1;
        font-size: 14px;
        font-weight: 600;
        color: var(--text);
        line-height: 1.3;
    }

    .rank-count {
        font-size: 13px;
        color: var(--text-light);
        white-space: nowrap;
    }

    /* ===== Stats ===== */
    .stats-section {
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
        position: relative;
        padding: 90px 0;
    }

    .stats-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(6, 78, 59, 0.9);
    }

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

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        text-align: center;
    }

    .stats-item {
        padding: 24px;
        border-radius: var(--radius);
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.12);
        backdrop-filter: blur(8px);
        transition: var(--transition);
    }

    .stats-item:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-4px);
    }

    .stats-num {
        font-size: 44px;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    .stats-num .unit {
        font-size: 20px;
        margin-left: 4px;
        color: #6ee7b7;
    }

    .stats-label {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.75);
        margin-top: 8px;
    }

    /* ===== Upcoming ===== */
    .match-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .match-card {
        background: #fff;
        border-radius: var(--radius);
        padding: 24px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        display: flex;
        align-items: center;
        gap: 20px;
        transition: var(--transition);
    }

    .match-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-3px);
        border-color: rgba(5, 150, 105, 0.3);
    }

    .match-league {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 12px;
        font-weight: 700;
        color: var(--primary);
        background: rgba(5, 150, 105, 0.1);
        padding: 3px 12px;
        border-radius: 999px;
        margin-bottom: 8px;
    }

    .match-teams {
        font-size: 16px;
        font-weight: 700;
        color: var(--dark);
        line-height: 1.5;
    }

    .match-teams span {
        color: var(--text-light);
        font-weight: 400;
        margin: 0 6px;
    }

    .match-meta {
        margin-top: 10px;
        font-size: 13px;
        color: var(--text-light);
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    .match-meta i {
        color: var(--primary);
        margin-right: 4px;
    }

    .match-vs {
        background: linear-gradient(135deg, #059669, #10b981);
        color: #fff;
        font-size: 14px;
        font-weight: 800;
        padding: 8px 14px;
        border-radius: 12px;
        flex-shrink: 0;
    }

    /* ===== FAQ ===== */
    .faq-grid {
        max-width: 860px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .faq-item {
        background: #fff;
        border-radius: 14px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(5, 150, 105, 0.3);
    }

    .faq-q {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--dark);
        transition: var(--transition);
    }

    .faq-q i {
        color: var(--primary);
        transition: transform 0.3s ease;
    }

    .faq-item.open .faq-q i {
        transform: rotate(180deg);
    }

    .faq-a {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        padding: 0 24px;
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-light);
    }

    .faq-item.open .faq-a {
        max-height: 300px;
        padding-bottom: 20px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        position: relative;
        padding: 90px 0;
        text-align: center;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(4, 120, 87, 0.85));
    }

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

    .cta-title {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
        margin-bottom: 16px;
        letter-spacing: -0.02em;
    }

    .cta-desc {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.8);
        max-width: 560px;
        margin: 0 auto 32px;
    }

    .cta-buttons {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: #0f172a;
        color: #94a3b8;
        padding-top: 60px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 40px;
    }

    .footer-brand .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 14px;
    }

    .footer-brand .footer-logo .brand-icon {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, #059669, #10b981);
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #fff;
    }

    .footer-brand p {
        font-size: 14px;
        line-height: 1.7;
        max-width: 320px;
    }

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

    .footer-links h4,
    .footer-contact h4 {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
    }

    .footer-links a {
        font-size: 14px;
        padding: 5px 0;
        color: #94a3b8;
        transition: var(--transition);
    }

    .footer-links a:hover {
        color: #10b981;
        padding-left: 4px;
    }

    .footer-contact p {
        font-size: 14px;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .footer-contact i {
        color: #10b981;
        width: 16px;
        text-align: center;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 0;
    }

    .footer-copy {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 13px;
        flex-wrap: wrap;
        gap: 8px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .header-actions .search-box {
            display: none;
        }

        .event-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .news-layout {
            grid-template-columns: 1fr;
        }

        .news-thumb {
            width: 200px;
        }

        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .category-hero h1 {
            font-size: 40px;
        }
    }

    @media (max-width: 768px) {
        .header-inner {
            height: 64px;
        }

        .header-actions .btn-login {
            display: none;
        }

        .site-nav {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            flex-direction: column;
            align-items: stretch;
            padding: 16px 24px;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            gap: 6px;
            transform: translateY(-120%);
            opacity: 0;
            transition: transform 0.3s ease, opacity 0.3s ease;
            z-index: -1;
        }

        .site-nav.open {
            transform: translateY(0);
            opacity: 1;
        }

        .nav-link {
            text-align: center;
            padding: 12px 20px;
        }

        .nav-toggle {
            display: block;
        }

        .header-actions .btn-primary {
            padding: 8px 16px;
            font-size: 13px;
        }

        .category-hero {
            padding: 80px 0;
            background-attachment: scroll;
        }

        .category-hero h1 {
            font-size: 32px;
        }

        .category-hero p.hero-desc {
            font-size: 15px;
        }

        .hero-actions {
            flex-direction: column;
            align-items: stretch;
        }

        .btn-hero-primary,
        .btn-hero-ghost {
            justify-content: center;
        }

        .section {
            padding: 56px 0;
        }

        .section-head .section-title {
            font-size: 24px;
        }

        .event-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .news-item {
            flex-direction: column;
        }

        .news-thumb {
            width: 100%;
            height: 180px;
        }

        .match-list {
            grid-template-columns: 1fr;
        }

        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .stats-num {
            font-size: 32px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }

        .footer-copy {
            flex-direction: column;
            text-align: center;
        }
    }

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

        .brand-text {
            font-size: 18px;
        }

        .header-actions .btn-primary {
            padding: 7px 14px;
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: 27px;
        }

        .hero-overline {
            font-size: 12px;
            padding: 5px 14px;
        }

        .tag-chip {
            padding: 8px 16px;
            font-size: 13px;
        }

        .news-content {
            padding: 16px;
        }

        .stats-num {
            font-size: 26px;
        }

        .stats-label {
            font-size: 12px;
        }

        .cta-title {
            font-size: 26px;
        }
    }

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

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

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

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

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

/* roulang page: article */
:root {
  --brand: #2563eb;
  --brand-dark: #1e40af;
  --brand-light: #60a5fa;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --ink: #0f172a;
  --ink-soft: #1e293b;
  --text: #334155;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --surface: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 14px 40px rgba(15, 23, 42, 0.14);
  --transition: all 0.3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; outline: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
::selection { background: rgba(37, 99, 235, 0.15); color: var(--brand-dark); }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* 导航栏 */
.site-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 rgba(226, 232, 240, 0.8);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.brand-logo:hover { color: var(--brand); }
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--brand), #7c3aed);
  color: #fff;
  border-radius: 10px;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}
.nav-link:hover { color: var(--brand); background: rgba(37, 99, 235, 0.08); }
.nav-link.active { background: var(--brand); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3); }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box {
  display: flex;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 6px 6px 16px;
  transition: var(--transition);
}
.search-box:focus-within { border-color: var(--brand); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
.search-box input { background: transparent; border: none; font-size: 0.85rem; color: var(--text); width: 140px; }
.search-box input::placeholder { color: #94a3b8; }
.search-box button {
  width: 30px; height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 0.75rem;
  transition: var(--transition);
}
.search-box button:hover { background: var(--brand-dark); }
.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #fff;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
  transition: var(--transition);
}
.btn-header-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.45); color: #fff; }
.menu-toggle { display: none; background: none; border: none; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border-radius: 10px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: var(--transition); }
.menu-toggle:hover { background: #f1f5f9; }
.mobile-menu { display: none; background: #fff; border-top: 1px solid var(--border); padding: 16px 24px; box-shadow: var(--shadow); }
.mobile-menu.open { display: block; }
.mobile-menu .nav-link { display: block; padding: 12px 16px; border-radius: 12px; margin-bottom: 6px; }
.mobile-menu .mobile-search { display: flex; gap: 8px; margin-bottom: 12px; }
.mobile-menu .mobile-search input { flex: 1; padding: 10px 16px; border: 1px solid var(--border); border-radius: 999px; font-size: 0.9rem; }

/* 文章 Hero */
.article-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  color: #fff;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(2, 6, 23, 0.92) 0%, rgba(15, 23, 42, 0.78) 40%, rgba(30, 58, 138, 0.55) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: 24px; }
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 0.65rem; opacity: 0.6; }
.hero-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; max-width: 860px; margin-bottom: 18px; }
.hero-desc { font-size: 1.05rem; line-height: 1.8; color: rgba(255,255,255,0.85); max-width: 720px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 28px; }
.hero-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; font-size: 0.85rem; background: rgba(255,255,255,0.14); backdrop-filter: blur(8px); padding: 6px 14px; border-radius: 999px; color: rgba(255,255,255,0.92); }
.hero-meta .meta-item i { color: var(--accent); }

/* 正文文章区 */
.article-main { padding: 64px 0; }
.article-layout { display: grid; grid-template-columns: 1fr; gap: 40px; }
.article-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.article-body { font-size: 1.0625rem; line-height: 1.9; color: var(--text); }
.article-body h2 { font-size: 1.6rem; font-weight: 700; color: var(--ink); margin: 2rem 0 1rem; padding-top: 0.5rem; }
.article-body h3 { font-size: 1.25rem; font-weight: 700; color: var(--ink); margin: 1.8rem 0 0.8rem; }
.article-body p { margin-bottom: 1.4rem; }
.article-body img { border-radius: var(--radius-sm); margin: 1.5rem 0; box-shadow: var(--shadow); }
.article-body ul, .article-body ol { margin-bottom: 1.4rem; padding-left: 1.6rem; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.5rem; }
.article-body blockquote {
  border-left: 4px solid var(--brand);
  background: #eff6ff;
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  margin: 1.6rem 0;
  color: var(--ink-soft);
  font-style: normal;
}
.article-body blockquote p { margin: 0; }
.article-body a { color: var(--brand); font-weight: 500; border-bottom: 1px solid rgba(37,99,235,0.3); }
.article-body a:hover { color: var(--brand-dark); border-color: var(--brand-dark); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92rem; }
.article-body th { background: #f8fafc; color: var(--ink); font-weight: 600; text-align: left; padding: 12px 14px; border: 1px solid var(--border); }
.article-body td { padding: 12px 14px; border: 1px solid var(--border); }
.article-body code { background: #f1f5f9; padding: 2px 8px; border-radius: 6px; font-size: 0.85em; color: #be185d; }
.article-body pre { background: var(--ink); color: #e2e8f0; padding: 20px; border-radius: 12px; overflow-x: auto; margin: 1.5rem 0; }
.article-body pre code { background: transparent; color: inherit; padding: 0; }

/* 文章尾部 */
.article-footer-tags { display: flex; flex-wrap: wrap; gap: 10px; padding: 24px 0 0; margin-top: 32px; border-top: 1px solid var(--border); }
.article-footer-tags a { padding: 6px 16px; background: #f1f5f9; border-radius: 999px; font-size: 0.8rem; color: var(--text); }
.article-footer-tags a:hover { background: var(--brand); color: #fff; }
.article-bottom-nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-bottom-nav a { padding: 10px 22px; border: 1px solid var(--border); border-radius: 999px; font-size: 0.88rem; color: var(--text); transition: var(--transition); }
.article-bottom-nav a:hover { border-color: var(--brand); color: var(--brand); background: #eff6ff; transform: translateY(-2px); }

/* 未找到 */
.not-found-card { text-align: center; padding: 60px 30px; }
.not-found-card i { font-size: 4rem; color: #cbd5e1; margin-bottom: 20px; }
.not-found-card h2 { font-size: 1.6rem; color: var(--ink); margin-bottom: 12px; }
.not-found-card p { color: var(--muted); margin-bottom: 24px; }
.not-found-card .inline-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  background: var(--brand);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  transition: var(--transition);
}
.not-found-card .inline-btn:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.4); }

/* 侧边栏 */
.side-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  border: 1px solid rgba(226, 232, 240, 0.6);
  margin-bottom: 24px;
}
.side-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--ink); margin-bottom: 18px; padding-bottom: 14px; border-bottom: 2px solid #f1f5f9; display: flex; align-items: center; gap: 8px; }
.side-card h3 i { color: var(--brand); font-size: 0.9rem; }
.side-post { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid #f1f5f9; }
.side-post:last-child { border-bottom: none; padding-bottom: 0; }
.side-post img { width: 72px; height: 60px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
.side-post a { font-size: 0.88rem; font-weight: 500; color: var(--ink); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.side-post a:hover { color: var(--brand); }
.side-post span { font-size: 0.75rem; color: var(--muted); display: block; margin-top: 4px; }
.side-cta { background: linear-gradient(135deg, #eff6ff, #f8fafc); border: 1px solid #bfdbfe; }
.side-cta h3 { border-bottom-color: #bfdbfe; }
.side-cta p { font-size: 0.88rem; color: var(--muted); margin-bottom: 16px; }
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--brand), #7c3aed);
  color: #fff;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3);
  transition: var(--transition);
  width: 100%;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.45); color: #fff; }
.side-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.side-tags a { padding: 6px 14px; background: #f1f5f9; border-radius: 999px; font-size: 0.78rem; color: var(--text); }
.side-tags a:hover { background: var(--brand); color: #fff; transform: translateY(-2px); }

/* 相关推荐 */
.related-section { padding: 72px 0; background: linear-gradient(180deg, #f8fafc, #eff6ff); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: var(--ink); margin-bottom: 10px; letter-spacing: -0.01em; }
.section-head p { color: var(--muted); font-size: 1rem; }
.related-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.related-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(226, 232, 240, 0.6);
  transition: var(--transition);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.2); }
.related-card .cover-wrap { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.related-card .cover-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .cover-wrap img { transform: scale(1.05); }
.related-card .cover-wrap .cat-badge { position: absolute; top: 14px; left: 14px; background: rgba(255,255,255,0.92); backdrop-filter: blur(6px); color: var(--brand); font-size: 0.75rem; font-weight: 600; padding: 4px 14px; border-radius: 999px; }
.related-card .card-body { padding: 22px; }
.related-card .card-body h3 { font-size: 1rem; font-weight: 700; color: var(--ink); line-height: 1.55; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body h3 a:hover { color: var(--brand); }
.related-card .card-body p { font-size: 0.85rem; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-meta { display: flex; align-items: center; justify-content: space-between; padding: 14px 22px; background: #f8fafc; border-top: 1px solid #f1f5f9; font-size: 0.78rem; color: var(--muted); }

/* 数据条 */
.stats-strip { background: var(--ink); padding: 64px 0; position: relative; overflow: hidden; }
.stats-strip::before { content: ''; position: absolute; top: -40%; right: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(37,99,235,0.3), transparent 70%); }
.stats-strip .container { position: relative; z-index: 2; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.stat-item { text-align: center; padding: 10px; }
.stat-item .stat-num { font-size: 2.6rem; font-weight: 800; color: #fff; letter-spacing: -0.03em; line-height: 1.1; }
.stat-item .stat-num span { color: var(--accent); }
.stat-item .stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 8px; }

/* FAQ */
.faq-section { padding: 72px 0; }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(37,99,235,0.35); }
.faq-item summary {
  padding: 20px 24px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--muted);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--brand); }
.faq-item[open] summary { border-bottom: 1px solid #f1f5f9; }
.faq-content { padding: 18px 24px; font-size: 0.92rem; color: var(--text); line-height: 1.85; }
.faq-content p:last-child { margin-bottom: 0; }

/* CTA */
.cta-section { padding: 72px 0; }
.cta-wrap {
  position: relative;
  background: linear-gradient(135deg, var(--brand), #1d4ed8, #312e81);
  border-radius: 24px;
  padding: 64px 40px;
  text-align: center;
  overflow: hidden;
}
.cta-wrap::before { content: ''; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%); }
.cta-wrap::after { content: ''; position: absolute; bottom: -50%; left: -15%; width: 350px; height: 350px; background: radial-gradient(circle, rgba(245,158,11,0.18), transparent 70%); }
.cta-wrap .container { position: relative; z-index: 2; }
.cta-wrap h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-wrap p { color: rgba(255,255,255,0.85); font-size: 1rem; max-width: 560px; margin: 0 auto 32px; line-height: 1.8; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 38px;
  background: var(--accent);
  color: var(--ink);
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
  transition: var(--transition);
}
.cta-btn:hover { transform: translateY(-3px); background: #fbbf24; box-shadow: 0 12px 32px rgba(245,158,11,0.55); color: var(--ink); }
.cta-note { margin-top: 16px; font-size: 0.8rem; color: rgba(255,255,255,0.6); }

/* 页脚 */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.75); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .footer-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: #fff; margin-bottom: 16px; }
.footer-brand .footer-logo:hover { color: var(--brand-light); }
.footer-brand .brand-icon { width: 32px; height: 32px; font-size: 0.85rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 320px; }
.footer-links h4 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 18px; }
.footer-links a { display: block; padding: 6px 0; font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.footer-links a:hover { color: var(--brand-light); padding-left: 4px; }
.footer-contact h4 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 18px; }
.footer-contact p { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: rgba(255,255,255,0.6); padding: 5px 0; }
.footer-contact i { color: var(--brand-light); width: 16px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer-copy { display: flex; flex-direction: column; gap: 6px; justify-content: space-between; align-items: center; font-size: 0.8rem; color: rgba(255,255,255,0.4); }

/* 响应式 */
@media (min-width: 640px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; }
  .footer-copy { flex-direction: row; }
}
@media (min-width: 1024px) {
  .article-layout { grid-template-columns: 7fr 5fr; }
  .related-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .site-nav { display: none; }
  .header-actions .search-box { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-inner { height: 64px; }
  .btn-header-cta { display: none; }
  .article-hero { padding: 56px 0; }
  .article-card { padding: 24px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.6rem; }
  .article-card { padding: 20px; border-radius: 12px; }
  .article-body { font-size: 1rem; }
  .article-body h2 { font-size: 1.35rem; }
  .related-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .stat-item .stat-num { font-size: 1.8rem; }
  .cta-wrap { padding: 40px 20px; }
  .cta-btn { width: 100%; justify-content: center; }
  .footer-grid { gap: 28px; }
  .side-post img { width: 60px; height: 50px; }
}