/* roulang page: index */
:root {
  --primary: #0c1f3f;
  --primary-2: #132c52;
  --primary-3: #1b3a6b;
  --accent: #e9a13b;
  --accent-2: #f5c879;
  --accent-dark: #cf8420;
  --bg: #f6f8fb;
  --bg-band: #eef2f7;
  --bg-deep: #081529;
  --card: #ffffff;
  --text: #16233a;
  --text-mid: #4a5a70;
  --text-light: #8596ab;
  --border: #e3e9f1;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-full: 50px;
  --shadow: 0 6px 24px rgba(12, 31, 63, 0.07);
  --shadow-lg: 0 16px 48px rgba(12, 31, 63, 0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); min-height: 100vh; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; color: var(--text); }
.container { width: min(1200px, 92%); margin: 0 auto; }
.section { padding: 88px 0; }
.section.band { background: var(--bg-band); }
.section-deep { background: var(--bg-deep); color: #fff; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(233, 161, 59, 0.12); color: var(--accent-dark); font-weight: 600; font-size: 13px; letter-spacing: 0.5px; padding: 6px 18px; border-radius: var(--radius-full); border: 1px solid rgba(233, 161, 59, 0.25); margin-bottom: 18px; }
.section-tag.light { background: rgba(255, 255, 255, 0.1); color: var(--accent-2); border-color: rgba(255, 255, 255, 0.2); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 14px; letter-spacing: -0.5px; }
.section-head p { color: var(--text-mid); font-size: 17px; line-height: 1.7; }
.section-head.center p { margin-left: auto; margin-right: auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; background: linear-gradient(135deg, var(--primary), var(--primary-3)); color: var(--accent-2); border-radius: 12px; font-weight: 800; font-size: 17px; letter-spacing: 0.5px; box-shadow: 0 4px 12px rgba(12, 31, 63, 0.25); }
.brand-text { font-size: 19px; font-weight: 800; color: var(--primary); letter-spacing: 0.3px; }
.brand-text span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { position: relative; padding: 9px 20px; font-size: 15px; font-weight: 600; color: var(--text-mid); border-radius: var(--radius-full); }
.main-nav a:hover { color: var(--primary); background: rgba(12, 31, 63, 0.05); }
.main-nav a.active { color: var(--primary); background: rgba(233, 161, 59, 0.12); }
.main-nav a.active::after { content: ''; position: absolute; left: 50%; bottom: 4px; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 4px; }
.header-cta { display: flex; align-items: center; gap: 14px; }
.header-cta .btn { padding: 10px 24px; font-size: 14px; }

/* Mobile tab bar */
.mobile-tabbar { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(14px); border-top: 1px solid var(--border); z-index: 1100; box-shadow: 0 -4px 20px rgba(12, 31, 63, 0.06); padding-bottom: env(safe-area-inset-bottom); }
.mobile-tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; padding: 10px 0; font-size: 11px; font-weight: 600; color: var(--text-light); transition: var(--transition); }
.mobile-tabbar a i { font-size: 20px; line-height: 1; }
.mobile-tabbar a.active { color: var(--primary); }
.mobile-tabbar a.active i { color: var(--accent); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 32px; font-size: 15px; font-weight: 700; border-radius: var(--radius-full); transition: var(--transition); white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; box-shadow: 0 6px 22px rgba(233, 161, 59, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(233, 161, 59, 0.45); }
.btn-outline { border: 1.5px solid rgba(255, 255, 255, 0.7); color: #fff; background: rgba(255, 255, 255, 0.06); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.15); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: #fff; box-shadow: 0 6px 20px rgba(12, 31, 63, 0.25); }
.btn-dark:hover { background: var(--primary-3); transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid rgba(233, 161, 59, 0.5); outline-offset: 3px; }

/* Hero */
.hero { position: relative; background: linear-gradient(105deg, rgba(8, 21, 41, 0.92) 0%, rgba(10, 26, 50, 0.78) 45%, rgba(12, 31, 63, 0.4) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; padding: 130px 0 120px; overflow: hidden; }
.hero::after { content: ''; position: absolute; bottom: -60px; left: -60px; width: 260px; height: 260px; background: rgba(233, 161, 59, 0.12); border-radius: 50%; filter: blur(80px); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 70px; align-items: center; position: relative; z-index: 2; }
.hero-content .hero-tag { display: inline-flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.22); color: var(--accent-2); padding: 7px 20px; border-radius: var(--radius-full); font-size: 13px; font-weight: 600; letter-spacing: 0.8px; margin-bottom: 26px; backdrop-filter: blur(6px); }
.hero-content .hero-tag i { font-size: 14px; }
.hero-content h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.15; margin-bottom: 22px; letter-spacing: -1px; }
.hero-content h1 span { color: var(--accent-2); }
.hero-content p { font-size: 17px; color: rgba(255, 255, 255, 0.82); max-width: 540px; margin-bottom: 32px; line-height: 1.8; }
.hero-btns { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 46px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.15); }
.hero-stats .stat { text-align: left; }
.hero-stats .num { font-size: 24px; font-weight: 800; color: var(--accent-2); }
.hero-stats .label { font-size: 13px; color: rgba(255, 255, 255, 0.65); margin-top: 2px; }
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual .visual-card { background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius-lg); padding: 16px; box-shadow: 0 24px 70px rgba(0, 0, 0, 0.25); max-width: 420px; }
.hero-visual .visual-card img { border-radius: 14px; aspect-ratio: 4/3; object-fit: cover; }
.hero-visual .visual-badge { position: absolute; top: -16px; left: -20px; background: var(--accent); color: #fff; padding: 8px 18px; border-radius: var(--radius-full); font-size: 13px; font-weight: 700; box-shadow: 0 6px 20px rgba(233, 161, 59, 0.4); }
.hero-visual .visual-badge-2 { position: absolute; bottom: -12px; right: -14px; background: var(--primary-2); border: 1px solid rgba(255, 255, 255, 0.2); color: #fff; padding: 10px 20px; border-radius: var(--radius); font-size: 13px; font-weight: 600; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 8px; }
.hero-visual .visual-badge-2 i { color: var(--accent-2); }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 38px 30px; transition: var(--transition); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: 0; transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 62px; height: 62px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(233, 161, 59, 0.15), rgba(233, 161, 59, 0.05)); color: var(--accent-dark); border-radius: 18px; font-size: 24px; margin-bottom: 24px; border: 1px solid rgba(233, 161, 59, 0.2); }
.feature-card h3 { font-size: 20px; margin-bottom: 12px; }
.feature-card p { color: var(--text-mid); font-size: 15px; line-height: 1.75; }

/* Categories */
.categories-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); background: var(--card); transition: var(--transition); box-shadow: var(--shadow); }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card .cat-img { height: 240px; overflow: hidden; position: relative; }
.category-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .cat-img img { transform: scale(1.05); }
.category-card .cat-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(12, 31, 63, 0.35)); }
.category-card .cat-body { padding: 28px 30px; }
.category-card .cat-body h3 { font-size: 22px; margin-bottom: 10px; }
.category-card .cat-body p { color: var(--text-mid); font-size: 15px; line-height: 1.7; margin-bottom: 20px; }
.category-card .cat-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--accent-dark); font-size: 15px; }
.category-card .cat-link i { transition: transform 0.3s ease; }
.category-card:hover .cat-link i { transform: translateX(5px); }

/* News list */
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item { display: block; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 30px; transition: var(--transition); position: relative; }
.news-item:hover { border-color: rgba(233, 161, 59, 0.4); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.news-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 10px; flex-wrap: wrap; }
.news-cat { display: inline-block; background: rgba(233, 161, 59, 0.12); color: var(--accent-dark); font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: var(--radius-full); }
.news-item time { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.news-item time i { font-size: 13px; }
.news-title { font-size: 18px; margin-bottom: 6px; color: var(--text); transition: var(--transition); }
.news-item:hover .news-title { color: var(--accent-dark); }
.news-desc { color: var(--text-mid); font-size: 14px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--primary); }
.news-item:hover .news-more { color: var(--accent-dark); }
.empty-tip { text-align: center; padding: 56px 20px; background: var(--card); border: 1px dashed var(--border); border-radius: var(--radius); color: var(--text-light); font-size: 16px; }

/* Stats band */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-card { text-align: center; padding: 36px 20px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-lg); transition: var(--transition); }
.stat-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-4px); }
.stat-card .icon { font-size: 26px; color: var(--accent-2); margin-bottom: 16px; }
.stat-card .num { font-size: 42px; font-weight: 800; color: #fff; line-height: 1; margin-bottom: 8px; letter-spacing: -0.5px; }
.stat-card .label { font-size: 14px; color: rgba(255, 255, 255, 0.65); }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.process-step { position: relative; text-align: center; padding: 36px 20px; }
.process-step::before { content: ''; position: absolute; top: 44px; left: calc(50% + 55px); width: calc(100% - 110px); height: 2px; background: linear-gradient(90deg, var(--accent), var(--border)); opacity: 0.4; }
.process-step:last-child::before { display: none; }
.step-num { width: 58px; height: 58px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--primary-3)); color: var(--accent-2); border-radius: 50%; font-size: 20px; font-weight: 800; box-shadow: 0 8px 24px rgba(12, 31, 63, 0.25); position: relative; z-index: 2; }
.process-step h3 { font-size: 18px; margin-bottom: 8px; }
.process-step p { color: var(--text-mid); font-size: 14px; line-height: 1.65; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
details.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; padding: 0 24px; transition: var(--transition); }
details.faq-item[open] { border-color: rgba(233, 161, 59, 0.4); box-shadow: var(--shadow); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; cursor: pointer; font-size: 16px; font-weight: 700; color: var(--text); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-toggle { flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(233, 161, 59, 0.12); color: var(--accent-dark); font-size: 13px; transition: transform 0.3s ease; }
details[open] .faq-toggle { transform: rotate(45deg); }
.faq-item .faq-answer { padding-bottom: 22px; color: var(--text-mid); font-size: 15px; line-height: 1.75; }

/* CTA */
.cta-section { position: relative; background: linear-gradient(120deg, var(--primary), var(--primary-3)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; background-blend-mode: overlay; border-radius: var(--radius-lg); padding: 70px 60px; color: #fff; overflow: hidden; text-align: center; }
.cta-section::after { content: ''; position: absolute; top: -80px; right: -80px; width: 260px; height: 260px; background: rgba(233, 161, 59, 0.18); border-radius: 50%; filter: blur(60px); }
.cta-section h2 { font-size: clamp(28px, 4vw, 38px); color: #fff; margin-bottom: 16px; position: relative; z-index: 2; }
.cta-section p { font-size: 16px; color: rgba(255, 255, 255, 0.8); max-width: 600px; margin: 0 auto 34px; line-height: 1.8; position: relative; z-index: 2; }
.cta-section .btn { position: relative; z-index: 2; }

/* Footer */
.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.7); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand .brand-text { color: #fff; font-size: 20px; }
.footer-brand .brand-text span { color: var(--accent-2); }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 18px; color: rgba(255, 255, 255, 0.55); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 20px; font-weight: 700; }
.footer-col a { display: block; font-size: 14px; padding: 6px 0; color: rgba(255, 255, 255, 0.6); transition: var(--transition); }
.footer-col a:hover { color: var(--accent-2); transform: translateX(4px); }
.footer-col .contact li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; padding: 7px 0; color: rgba(255, 255, 255, 0.6); }
.footer-col .contact i { color: var(--accent-2); margin-top: 4px; min-width: 18px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 26px; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.35); }

/* Floating styles */
.section-divider { display: block; width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); }

/* Responsive */
@media (max-width: 1024px) {
  .hero { padding: 100px 0 90px; }
  .hero-grid { grid-template-columns: 1fr; gap: 50px; }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .process-step::before { display: none; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .header-inner { height: 64px; }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-tabbar { display: flex; }
  body { padding-bottom: 62px; }
  .hero { padding: 80px 0 70px; }
  .hero-content h1 { font-size: 32px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .features-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
  .category-card .cat-img { height: 190px; }
  .stats-band { grid-template-columns: 1fr 1fr; gap: 16px; }
  .cta-section { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 520px) {
  .stats-band { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .hero-btns .btn { width: 100%; }
  .news-item { padding: 20px; }
  .hero-stats .num { font-size: 20px; }
}

/* roulang page: category1 */
:root {
            --primary: #0b1f3a;
            --primary-2: #132c52;
            --primary-3: #1b3a66;
            --accent: #c9a55c;
            --accent-hover: #b8944a;
            --accent-soft: rgba(201, 165, 92, .14);
            --bg: #f4f6fb;
            --bg-alt: #e9edf4;
            --white: #ffffff;
            --text: #1a2634;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow: 0 12px 34px rgba(15, 35, 65, .08);
            --shadow-lg: 0 24px 56px rgba(15, 35, 65, .14);
            --transition: all .3s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --header-h: 74px;
            --section-pad: 96px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: min(1240px, 92%);
            margin: 0 auto;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--header-h);
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(15, 35, 65, .07);
        }
        .header-inner {
            height: var(--header-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-3) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 800;
            letter-spacing: .5px;
            box-shadow: 0 6px 18px rgba(11, 31, 58, .28);
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-text span {
            color: var(--accent);
            font-weight: 600;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.4;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--accent-soft);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--accent-soft);
            font-weight: 600;
        }
        .header-cta .btn {
            transition: var(--transition);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            padding: 12px 28px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(11, 31, 58, .22);
        }
        .btn-primary:hover {
            background: var(--primary-3);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(11, 31, 58, .3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 16px rgba(11, 31, 58, .2);
        }
        .btn-outline {
            border-color: rgba(201, 165, 92, .5);
            color: var(--accent);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .18);
        }
        .btn:focus-visible,
        .main-nav a:focus-visible,
        .brand:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }
        .page-banner {
            position: relative;
            padding: calc(var(--header-h) + 72px) 0 72px;
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            isolation: isolate;
            color: #fff;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 31, 58, .92) 0%, rgba(11, 31, 58, .72) 55%, rgba(11, 31, 58, .45) 100%);
            z-index: -1;
        }
        .banner-content {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .8);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, .4);
        }
        .page-banner h1 {
            font-size: clamp(30px, 4.4vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .page-banner h1 span {
            color: var(--accent);
        }
        .page-banner p {
            font-size: clamp(15px, 1.6vw, 18px);
            color: rgba(255, 255, 255, .85);
            max-width: 640px;
            margin-bottom: 32px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 7px 18px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.75;
        }
        .overview-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 56px;
            align-items: center;
        }
        .overview-text h2 {
            font-size: clamp(24px, 2.8vw, 36px);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 20px;
        }
        .overview-text h2 em {
            font-style: normal;
            color: var(--accent);
        }
        .overview-text p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 18px;
        }
        .check-list {
            margin: 24px 0 28px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 9px 0;
            font-size: 15px;
            color: var(--text);
        }
        .check-list li i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        .overview-media {
            position: relative;
        }
        .overview-media img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .media-card {
            position: absolute;
            left: -18px;
            bottom: 24px;
            background: var(--white);
            border-radius: var(--radius-sm);
            padding: 18px 24px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 14px;
            max-width: 260px;
        }
        .media-card i {
            font-size: 26px;
            color: var(--accent);
        }
        .media-card strong {
            display: block;
            font-size: 22px;
            color: var(--primary);
            line-height: 1.3;
        }
        .media-card span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .timeline-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .timeline-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 30px;
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }
        .timeline-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: rgba(201, 165, 92, .4);
        }
        .timeline-year {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .timeline-item:nth-child(even) .timeline-year {
            background: var(--accent);
            color: var(--primary);
        }
        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .stats-section {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: rgba(201, 165, 92, .18);
            border-radius: 50%;
            filter: blur(60px);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stats-item {
            text-align: center;
            padding: 20px 10px;
        }
        .stats-item i {
            font-size: 34px;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .stats-item strong {
            display: block;
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stats-item span {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 34px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .promise-section {
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-attachment: fixed;
            position: relative;
            isolation: isolate;
            color: #fff;
            padding: var(--section-pad) 0;
        }
        .promise-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 31, 58, .94) 0%, rgba(11, 31, 58, .82) 100%);
            z-index: -1;
        }
        .promise-section .section-head h2 {
            color: #fff;
        }
        .promise-section .section-head p {
            color: rgba(255, 255, 255, .72);
        }
        .promise-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .promise-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius);
            padding: 32px 26px;
            text-align: center;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .promise-item:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }
        .promise-item i {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .promise-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .promise-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            line-height: 1.7;
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: rgba(201, 165, 92, .5);
            box-shadow: var(--shadow);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
        }
        .faq-q i {
            color: var(--accent);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            max-height: 0;
            padding: 0 24px;
            overflow: hidden;
            transition: max-height .4s ease, padding .4s ease;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 24px 22px;
        }
        .cta-band {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-3) 100%);
            border-radius: 28px;
            padding: 64px 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-band::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(201, 165, 92, .3);
            border-radius: 50%;
            filter: blur(40px);
        }
        .cta-band h2 {
            font-size: clamp(24px, 2.8vw, 34px);
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            max-width: 560px;
            margin: 0 auto 30px;
            position: relative;
            z-index: 1;
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .72);
            padding-top: 72px;
            margin-top: 96px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 44px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .footer-brand .brand {
            margin-bottom: 18px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand .brand-text span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            padding: 7px 0;
            line-height: 1.5;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-col .contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            padding: 7px 0;
            line-height: 1.6;
        }
        .footer-col .contact i {
            color: var(--accent);
            margin-top: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }
        .mobile-tabbar {
            display: none;
        }
        @media (max-width: 1024px) {
            :root {
                --section-pad: 72px;
            }
            .overview-grid {
                gap: 32px;
            }
            .timeline-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .promise-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
                --section-pad: 60px;
            }
            .main-nav,
            .header-cta {
                display: none;
            }
            .site-header {
                background: rgba(255, 255, 255, .96);
            }
            .page-banner {
                padding: calc(var(--header-h) + 48px) 0 48px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .overview-media img {
                height: 280px;
            }
            .media-card {
                left: 12px;
                bottom: 12px;
            }
            .timeline-grid,
            .features-grid,
            .promise-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                gap: 20px;
            }
            .cta-band {
                padding: 44px 24px;
                border-radius: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }
            .mobile-tabbar {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                z-index: 200;
                background: rgba(255, 255, 255, .96);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                border-top: 1px solid var(--border);
                padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
                box-shadow: 0 -6px 24px rgba(15, 35, 65, .06);
            }
            .mobile-tabbar .tab-item {
                flex: 1;
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 4px;
                padding: 6px 4px;
                border-radius: 12px;
                font-size: 12px;
                color: var(--text-muted);
            }
            .mobile-tabbar .tab-item i {
                font-size: 20px;
            }
            .mobile-tabbar .tab-item.active {
                color: var(--primary);
                background: var(--accent-soft);
                font-weight: 600;
            }
            body {
                padding-bottom: 68px;
            }
            .site-footer {
                margin-top: 60px;
            }
            .footer-bottom {
                padding-bottom: 24px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 17px;
            }
            .brand-mark {
                width: 36px;
                height: 36px;
                font-size: 14px;
                border-radius: 10px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .timeline-item,
            .feature-card,
            .promise-item {
                padding: 24px 20px;
            }
            .stats-item strong {
                font-size: 30px;
            }
            .cta-btns .btn {
                width: 100%;
            }
            .media-card {
                max-width: 210px;
                padding: 14px 18px;
            }
            .media-card strong {
                font-size: 18px;
            }
            .faq-q {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-a {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item.open .faq-a {
                padding: 0 18px 18px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0e2440;
  --primary-800: #143252;
  --primary-600: #1d4168;
  --accent: #c89b3c;
  --accent-light: #e6c984;
  --accent-dark: #a3792a;
  --bg-body: #f3f6fa;
  --bg-white: #ffffff;
  --bg-soft: #edf1f7;
  --bg-deep: #081726;
  --text-main: #17273c;
  --text-body: #3d4e66;
  --text-muted: #6d7d95;
  --text-light: #97a5bb;
  --border: #dfe5ee;
  --border-light: #ebf0f6;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-xs: 0 1px 3px rgba(14,30,56,.05);
  --shadow-sm: 0 3px 12px rgba(14,30,56,.07);
  --shadow-md: 0 8px 26px rgba(14,30,56,.10);
  --shadow-lg: 0 20px 50px rgba(14,30,56,.14);
  --container: 1200px;
  --header-h: 76px;
  --transition: .25s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; cursor: pointer; }
ul, ol { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }
input, textarea { font: inherit; border: none; outline: none; }
::selection { background: var(--accent); color: #fff; }

/* ===== 容器与布局 ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.section { padding: 88px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-title { font-size: 34px; font-weight: 700; color: var(--text-main); line-height: 1.3; letter-spacing: .5px; }
.section-title span { color: var(--accent); }
.section-sub { margin-top: 14px; font-size: 16px; color: var(--text-muted); line-height: 1.8; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(200,155,60,.32);
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,155,60,.42);
}
.btn-outline {
  border-color: rgba(255,255,255,.65);
  color: #fff;
  background: transparent;
}
.btn-outline:hover {
  background: rgba(255,255,255,.14);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
}
.btn-light:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline-light {
  border-color: rgba(255,255,255,.7);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-2px);
}
.btn:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 3px; }

/* ===== 徽章 ===== */
.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  line-height: 1.5;
}
.badge-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 10px rgba(200,155,60,.35);
}
.badge-soft {
  background: rgba(200,155,60,.14);
  color: var(--accent-dark);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223,229,238,.8);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 30px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-600));
  color: var(--accent);
  border-radius: 12px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .5px;
  box-shadow: 0 4px 14px rgba(14,36,64,.22);
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  line-height: 1.2;
}
.brand-text span { color: var(--accent); font-weight: 600; font-size: 16px; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 50px;
  transition: all var(--transition);
  position: relative;
}
.main-nav a:hover { color: var(--primary); background: var(--bg-soft); }
.main-nav a.active { color: var(--primary); font-weight: 700; background: rgba(200,155,60,.12); }
.header-cta { flex-shrink: 0; }

/* ===== 移动端底部 Tab ===== */
.mobile-bottom-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 66px;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -6px 24px rgba(14,30,56,.08);
  z-index: 1000;
  align-items: stretch;
  justify-content: space-around;
  padding: 0 8px;
}
.mobile-bottom-tab .tab-item {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color var(--transition);
}
.mobile-bottom-tab .tab-item i { font-size: 20px; line-height: 1; }
.mobile-bottom-tab .tab-item.active { color: var(--accent); }
.mobile-bottom-tab .tab-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 36%;
  height: 3px;
  border-radius: 0 0 6px 6px;
  background: transparent;
  transition: background var(--transition);
}
.mobile-bottom-tab .tab-item.active::before { background: var(--accent); }

/* ===== 文章 Hero ===== */
.article-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-image: url('/assets/images/backpic/back-1.png');
  padding: 76px 0 72px;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(8,23,38,.92) 0%, rgba(14,36,64,.82) 45%, rgba(14,36,64,.55) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 860px; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.68);
  margin-bottom: 22px;
}
.breadcrumb a { color: rgba(255,255,255,.82); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,.38); }
.breadcrumb .current { color: rgba(255,255,255,.92); }
.article-hero .badge { margin-bottom: 18px; }
.article-hero h1 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  letter-spacing: 1px;
  margin-bottom: 22px;
  word-break: break-word;
}
.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 26px;
  color: rgba(255,255,255,.76);
  font-size: 14px;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta i { color: var(--accent); font-size: 16px; }

/* ===== 信息条 ===== */
.info-strip { background: var(--bg-white); border-bottom: 1px solid var(--border); }
.strip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 34px 0;
}
.strip-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 32px;
  border-right: 1px solid var(--border-light);
}
.strip-item:last-child { border-right: none; }
.strip-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(200,155,60,.12);
  color: var(--accent);
  font-size: 22px;
  flex-shrink: 0;
}
.strip-item strong { display: block; font-size: 16px; color: var(--text-main); line-height: 1.4; }
.strip-item span { font-size: 13px; color: var(--text-muted); }

/* ===== 文章主体 ===== */
.article-body-section { padding: 60px 0 80px; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}
.article-main { min-width: 0; }
.article-box {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 44px 48px;
}
.article-content { font-size: 16.5px; line-height: 2; color: var(--text-body); }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin: 44px 0 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border-light);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin: 34px 0 14px;
}
.article-content h4 { font-size: 17px; font-weight: 700; color: var(--text-main); margin: 26px 0 10px; }
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 1.6em; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #faf7f0;
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-body);
  font-style: normal;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content a { color: var(--primary-600); border-bottom: 1px solid currentColor; transition: color var(--transition); }
.article-content a:hover { color: var(--accent); }
.article-content img { border-radius: var(--radius-md); box-shadow: var(--shadow-sm); margin: 28px 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; }
.article-content table th,
.article-content table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content table th { background: var(--bg-soft); font-weight: 600; color: var(--text-main); }
.article-content code { background: var(--bg-soft); color: #c0392b; padding: 2px 8px; border-radius: 6px; font-size: .92em; }

/* ===== 文章标签 ===== */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 30px;
  margin-top: 34px;
  border-top: 1px solid var(--border-light);
}
.tags-label { font-size: 14px; font-weight: 700; color: var(--text-main); margin-right: 6px; display: inline-flex; align-items: center; gap: 8px; color: var(--accent); }
.tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-soft);
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-body);
  transition: all var(--transition);
}
.tag:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }
.article-share { display: flex; align-items: center; gap: 12px; padding-top: 24px; margin-top: 30px; border-top: 1px solid var(--border-light); }
.share-label { font-size: 14px; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
.share-list { display: flex; gap: 10px; }
.share-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-size: 15px;
  transition: all var(--transition);
}
.share-list a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

/* ===== 空文章状态 ===== */
.article-empty { text-align: center; padding: 80px 24px; }
.article-empty i { font-size: 54px; color: var(--text-light); margin-bottom: 22px; display: block; }
.article-empty h2 { font-size: 28px; color: var(--text-main); margin-bottom: 12px; }
.article-empty p { color: var(--text-muted); margin-bottom: 28px; }

/* ===== 侧边栏 ===== */
.article-aside { display: flex; flex-direction: column; gap: 28px; min-width: 0; }
.widget {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
  padding: 26px 26px;
}
.widget-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border-light);
}
.widget-title i { color: var(--accent); font-size: 18px; }
.service-list { display: flex; flex-direction: column; gap: 14px; }
.service-list li { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-body); }
.service-list li i { color: var(--accent); font-size: 17px; flex-shrink: 0; }
.category-links { display: flex; flex-direction: column; gap: 10px; }
.cat-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.cat-link i:first-child { font-size: 18px; color: var(--accent); width: 24px; text-align: center; }
.cat-link span { flex: 1; font-size: 14px; font-weight: 600; color: var(--text-main); }
.cat-link i:last-child { font-size: 13px; color: var(--text-light); transition: transform var(--transition); }
.cat-link:hover { background: rgba(200,155,60,.10); transform: translateX(4px); }
.cat-link:hover i:last-child { transform: translateX(3px); color: var(--accent); }
.mini-post-list { display: flex; flex-direction: column; gap: 16px; }
.mini-post { display: flex; gap: 14px; align-items: center; }
.mini-post-thumb { width: 76px; height: 58px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; background: var(--bg-soft); }
.mini-post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.mini-post:hover .mini-post-thumb img { transform: scale(1.06); }
.mini-post-info { min-width: 0; }
.mini-post-info h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: color var(--transition);
}
.mini-post:hover .mini-post-info h5 { color: var(--accent); }
.mini-post-info span { font-size: 12px; color: var(--text-light); margin-top: 4px; display: block; }
.empty-tip { font-size: 14px; color: var(--text-muted); padding: 16px 0; text-align: center; }

/* ===== 相关资讯 ===== */
.related-section { background: var(--bg-white); border-top: 1px solid var(--border); padding: 88px 0; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.related-card {
  display: block;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition);
}
.related-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(200,155,60,.35);
}
.related-thumb { height: 180px; overflow: hidden; position: relative; background: var(--bg-soft); }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-thumb img { transform: scale(1.06); }
.related-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,30,56,.28), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.related-card:hover .related-thumb::after { opacity: 1; }
.related-body { padding: 20px 22px 22px; }
.related-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.related-date { font-size: 12px; color: var(--text-light); display: inline-flex; align-items: center; gap: 6px; }
.related-body h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.55;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: color var(--transition);
}
.related-card:hover .related-body h4 { color: var(--accent-dark); }
.related-body p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.7;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ===== FAQ ===== */
.faq-section { padding: 88px 0; background: var(--bg-body); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item[open] { border-color: rgba(200,155,60,.5); box-shadow: var(--shadow-sm); }
.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-summary::-webkit-details-marker { display: none; }
.faq-summary i {
  color: var(--accent);
  font-size: 16px;
  transition: transform var(--transition);
  flex-shrink: 0;
  background: rgba(200,155,60,.12);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.faq-item[open] .faq-summary i { transform: rotate(45deg); }
.faq-item[open] .faq-summary { border-bottom: 1px solid var(--border-light); }
.faq-body { padding: 4px 26px 22px; color: var(--text-body); font-size: 15px; line-height: 1.9; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  background-image: url('/assets/images/backpic/back-2.png');
  padding: 90px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(8,23,38,.96) 0%, rgba(14,36,64,.88) 55%, rgba(14,36,64,.72) 100%);
}
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 780px; margin: 0 auto; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: #fff; line-height: 1.4; margin-bottom: 18px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,.72); line-height: 1.9; margin-bottom: 36px; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,.7);
  padding: 68px 0 30px;
  font-size: 14.5px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-mark { width: 42px; height: 42px; font-size: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand .brand-text span { color: var(--accent); }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.9; color: rgba(255,255,255,.58); max-width: 320px; }
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.6);
  padding: 5px 0;
  font-size: 14px;
  transition: all var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-col ul.contact { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul.contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.6); }
.footer-col ul.contact i { color: var(--accent); font-size: 16px; width: 20px; text-align: center; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  color: rgba(255,255,255,.4);
  font-size: 13px;
}
.footer-bottom p { margin: 0; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .section { padding: 72px 0; }
  .article-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 30px; }
  .article-box { padding: 36px 36px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .strip-item { padding: 10px 16px; }
}

@media (max-width: 991px) {
  .main-nav, .header-cta { display: none; }
  .mobile-bottom-tab { display: flex; }
  body { padding-bottom: 72px; }
  .site-header { height: 64px; }
  .header-inner { height: 64px; }
  .brand-mark { width: 38px; height: 38px; font-size: 15px; border-radius: 10px; }
  .brand-text { font-size: 18px; }
  .brand-text span { font-size: 14px; }
}

@media (max-width: 768px) {
  .container { padding: 0 18px; }
  body { font-size: 15px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 26px; }
  .section-head { margin-bottom: 40px; }
  .article-hero { padding: 48px 0 42px; }
  .article-hero h1 { font-size: 26px; margin-bottom: 16px; }
  .hero-meta { gap: 16px; flex-direction: column; align-items: flex-start; }
  .strip-grid { grid-template-columns: 1fr; gap: 0; padding: 12px 0; }
  .strip-item { border-right: none; border-bottom: 1px solid var(--border-light); padding: 16px 8px; }
  .strip-item:last-child { border-bottom: none; }
  .article-layout { grid-template-columns: 1fr; gap: 30px; }
  .article-box { padding: 28px 22px; border-radius: var(--radius-md); }
  .article-content { font-size: 15.5px; line-height: 1.95; }
  .article-content h2 { font-size: 20px; margin: 32px 0 14px; }
  .article-content h3 { font-size: 18px; }
  .related-section { padding: 60px 0; }
  .related-grid { grid-template-columns: 1fr; gap: 18px; }
  .related-thumb { height: 200px; }
  .faq-section { padding: 60px 0; }
  .faq-summary { padding: 16px 18px; font-size: 15px; }
  .faq-body { padding: 12px 18px 18px; }
  .cta-section { padding: 64px 0; }
  .cta-inner h2 { font-size: 26px; }
  .cta-actions { flex-direction: column; align-items: center; width: 100%; }
  .cta-actions .btn { width: 100%; max-width: 320px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; padding-bottom: 36px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .article-empty { padding: 60px 18px; }
  .article-empty i { font-size: 42px; }
  .article-empty h2 { font-size: 24px; }
}

@media (max-width: 520px) {
  .container { padding: 0 14px; }
  .section-title { font-size: 23px; }
  .section-sub { font-size: 14.5px; }
  .btn { padding: 10px 20px; font-size: 14px; }
  .article-hero { padding: 38px 0 34px; }
  .article-hero h1 { font-size: 22px; }
  .brand-text { font-size: 16px; }
  .brand-text span { display: block; font-size: 12px; }
  .brand { gap: 8px; }
  .article-box { padding: 22px 16px; }
  .article-tags { gap: 8px; }
  .tag { padding: 5px 12px; font-size: 12px; }
  .related-thumb { height: 170px; }
  .related-grid { grid-template-columns: 1fr; }
  .strip-item { padding: 14px 6px; }
  .strip-icon { width: 44px; height: 44px; font-size: 18px; }
  .widget { padding: 20px 16px; }
  .cta-actions .btn { font-size: 14px; }
  .faq-summary { font-size: 14px; padding: 14px 16px; }
  .faq-body { padding: 10px 16px 16px; font-size: 14px; }
  .footer-col h4 { font-size: 15px; }
  .footer-bottom { flex-direction: column; }
}

/* ===== 辅助 ===== */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* roulang page: category2 */
:root {
            --primary: #175cd3;
            --primary-dark: #123d8a;
            --primary-light: #eff6ff;
            --accent: #f79009;
            --accent-light: #fff7ed;
            --bg: #f8fafc;
            --bg-deep: #0b1220;
            --bg-card: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(15, 23, 42, .06);
            --shadow-lg: 0 20px 60px rgba(15, 23, 42, .10);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: all .25s ease;
            --space: 90px;
            --header-h: 72px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        button, input { font-family: inherit; }
        ul, ol { list-style: none; }
        ::selection { background: rgba(23, 92, 211, .15); }

        .container { width: min(1160px, 92%); margin: 0 auto; }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            letter-spacing: .5px;
            box-shadow: 0 6px 16px rgba(23, 92, 211, .28);
        }
        .brand-text { font-size: 20px; font-weight: 800; color: var(--text); line-height: 1.2; }
        .brand-text span { color: var(--primary); font-weight: 600; }
        .main-nav { display: flex; gap: 6px; }
        .main-nav a {
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            transition: var(--transition);
        }
        .main-nav a:hover { background: var(--bg); color: var(--text); }
        .main-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
        .header-cta { display: flex; gap: 10px; flex-shrink: 0; }

        /* Button */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 12px;
            padding: 11px 24px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(23, 92, 211, .22); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(23, 92, 211, .30); }
        .btn-light { background: #fff; color: var(--text); box-shadow: 0 6px 18px rgba(0, 0, 0, .12); }
        .btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255, 255, 255, .15); }
        .btn:focus-visible { outline: 3px solid rgba(23, 92, 211, .3); outline-offset: 2px; }

        /* Banner */
        .page-banner {
            position: relative;
            padding: 84px 0;
            background-size: cover;
            background-position: center;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 18, 32, .88), rgba(11, 18, 32, .55));
            z-index: -1;
        }
        .banner-inner { position: relative; z-index: 1; color: #fff; max-width: 720px; }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            margin-bottom: 18px;
            backdrop-filter: blur(4px);
        }
        .banner-badge i { color: var(--accent); }
        .page-banner h1 {
            font-size: clamp(30px, 4vw, 46px);
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .page-banner p { font-size: 16px; color: rgba(255, 255, 255, .85); max-width: 560px; margin-bottom: 22px; }
        .breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .75); }
        .breadcrumb a:hover { color: #fff; }

        /* Section Common */
        .section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
        .section-eyebrow {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            text-transform: uppercase;
            background: var(--primary-light);
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-eyebrow.light { background: rgba(255, 255, 255, .12); color: #fff; }
        .section-head h2 {
            font-size: clamp(26px, 3.2vw, 34px);
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: .5px;
        }
        .section-head p { color: var(--text-weak); font-size: 15px; }

        /* Filter */
        .filter-section { padding: 56px 0 8px; }
        .filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            background: #fff;
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            transition: var(--transition);
            box-shadow: 0 2px 6px rgba(15, 23, 42, .03);
        }
        .filter-tab:hover { border-color: var(--primary); color: var(--primary); }
        .filter-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 8px 20px rgba(23, 92, 211, .25); }
        .filter-tab .badge {
            background: var(--bg);
            color: var(--text-weak);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 999px;
            line-height: 1.6;
        }
        .filter-tab.active .badge { background: rgba(255, 255, 255, .2); color: #fff; }

        /* News List */
        .news-list-section { padding: 48px 0 var(--space); }
        .news-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: start; }
        .feature-news {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: block;
        }
        .feature-news:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .feature-cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
        .feature-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
        .feature-news:hover .feature-cover img { transform: scale(1.04); }
        .cover-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, .92);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .12);
        }
        .feature-body { padding: 24px; }
        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--accent-light);
            color: var(--accent);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .tag-blue { background: var(--primary-light); color: var(--primary); }
        .tag-green { background: #ecfdf5; color: #059669; }
        .feature-body h3 { font-size: 22px; line-height: 1.5; margin-bottom: 10px; font-weight: 700; }
        .feature-body p { color: var(--text-weak); font-size: 15px; margin-bottom: 16px; }
        .meta { display: flex; gap: 18px; font-size: 13px; color: var(--text-weak); }
        .meta i { margin-right: 4px; }

        .news-stack { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            display: flex;
            gap: 16px;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(15, 23, 42, .03);
        }
        .news-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
        .news-item img { width: 112px; height: 84px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
        .item-content { flex: 1; min-width: 0; }
        .item-content .tag { margin-bottom: 6px; }
        .item-content h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .item-content h4 a { transition: color .2s; }
        .item-content h4 a:hover { color: var(--primary); }
        .item-content p {
            font-size: 13px;
            color: var(--text-weak);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .item-content .meta { font-size: 12px; gap: 10px; }

        /* Stats */
        .stats-section {
            background: var(--bg-deep);
            background-image: linear-gradient(rgba(23, 92, 211, .18), rgba(11, 18, 32, .92)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 72px 0;
        }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 18px;
            padding: 30px 20px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255, 255, 255, .14); transform: translateY(-3px); }
        .stat-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 8px 20px rgba(23, 92, 211, .3);
        }
        .stat-num { display: block; font-size: 34px; font-weight: 800; color: #fff; line-height: 1.2; }
        .stat-label { display: block; color: rgba(255, 255, 255, .7); font-size: 14px; margin-top: 6px; }

        /* Hot Ranking */
        .hot-section { padding: var(--space) 0; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
        .rank-list { max-width: 820px; margin: 0 auto; }
        .rank-list li {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 22px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .rank-list li:hover { background: #fff; box-shadow: var(--shadow); transform: translateX(4px); }
        .rank-num { font-size: 24px; font-weight: 800; color: var(--primary); opacity: .4; min-width: 44px; transition: var(--transition); }
        .rank-list li:nth-child(-n+3) .rank-num { color: var(--accent); opacity: 1; }
        .rank-icon { color: #94a3b8; font-size: 18px; }
        .rank-info { flex: 1; min-width: 0; }
        .rank-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
        .rank-info p { font-size: 13px; color: var(--text-weak); }
        .rank-tag { background: var(--primary-light); color: var(--primary); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; white-space: nowrap; }

        /* Deep Band */
        .deep-section {
            padding: var(--space) 0;
            background: var(--bg-deep);
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }
        .deep-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 18, 32, .94), rgba(23, 92, 211, .65));
            z-index: -1;
        }
        .deep-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; color: #fff; }
        .deep-text .section-eyebrow { background: rgba(255, 255, 255, .12); color: #fff; }
        .deep-text h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin-bottom: 16px; line-height: 1.4; }
        .deep-text > p { color: rgba(255, 255, 255, .8); margin-bottom: 20px; font-size: 15px; }
        .check-list { margin-bottom: 26px; }
        .check-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            color: rgba(255, 255, 255, .9);
            font-size: 15px;
        }
        .check-list i { color: #4ade80; font-size: 16px; }
        .deep-visual { border-radius: 20px; overflow: hidden; box-shadow: 0 20px 50px rgba(0, 0, 0, .35); border: 1px solid rgba(255, 255, 255, .15); }
        .deep-visual img { width: 100%; height: auto; display: block; }

        /* Subscribe */
        .subscribe-section { padding: var(--space) 0; }
        .cta-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            color: #fff;
            box-shadow: 0 20px 50px rgba(23, 92, 211, .25);
        }
        .cta-info h2 { font-size: 26px; font-weight: 800; margin-bottom: 6px; }
        .cta-info p { color: rgba(255, 255, 255, .85); font-size: 15px; }
        .cta-form { display: flex; gap: 10px; width: min(440px, 100%); }
        .cta-form input {
            flex: 1;
            padding: 12px 18px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, .25);
            background: rgba(255, 255, 255, .16);
            color: #fff;
            font-size: 14px;
            backdrop-filter: blur(6px);
            transition: var(--transition);
            min-width: 0;
        }
        .cta-form input::placeholder { color: rgba(255, 255, 255, .6); }
        .cta-form input:focus { outline: 2px solid rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .22); }
        .cta-form .btn-primary { background: #fff; color: var(--primary); box-shadow: none; }
        .cta-form .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); }

        /* FAQ */
        .faq-section { padding: var(--space) 0; background: #fff; border-top: 1px solid var(--border); }
        .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 960px; margin: 0 auto; }
        .faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: var(--primary); box-shadow: var(--shadow); }
        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: auto;
            transition: var(--transition);
            color: var(--text-weak);
            font-size: 13px;
        }
        .faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
        .faq-item[open] summary { color: var(--primary); background: var(--primary-light); }
        .faq-item p { padding: 0 24px 20px; color: var(--text-weak); font-size: 14px; }

        /* Footer */
        .site-footer { background: var(--bg-deep); color: #cbd5e1; padding: 70px 0 30px; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 50px; }
        .footer-brand .brand .brand-text { color: #fff; }
        .footer-brand p { margin-top: 18px; font-size: 14px; line-height: 1.8; color: #94a3b8; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 700; }
        .footer-col a { display: block; padding: 6px 0; color: #94a3b8; font-size: 14px; transition: var(--transition); }
        .footer-col a:hover { color: #fff; padding-left: 6px; }
        .contact li {
            padding: 6px 0;
            font-size: 14px;
            color: #94a3b8;
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .contact i { color: var(--primary); width: 18px; text-align: center; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 24px; text-align: center; font-size: 13px; color: #94a3b8; }

        /* Mobile Tabbar */
        .mobile-tabbar { display: none; }

        /* Responsive */
        @media (max-width: 1024px) {
            .news-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .faq-grid { grid-template-columns: 1fr; }
            .deep-grid { grid-template-columns: 1fr; }
            .deep-visual { max-width: 560px; }
        }

        @media (max-width: 768px) {
            :root { --space: 60px; }
            .main-nav, .header-cta { display: none; }
            .header-inner { justify-content: flex-start; }
            .page-banner { padding: 64px 0; }
            .page-banner h1 { font-size: 28px; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .cta-card { padding: 30px 24px; flex-direction: column; align-items: stretch; }
            .cta-form { flex-direction: column; }
            .cta-form .btn { width: 100%; }
            .news-item img { width: 92px; height: 76px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .stat-num { font-size: 26px; }
            .rank-list li { padding: 16px; gap: 12px; }
            .rank-num { font-size: 18px; min-width: 32px; }
            .deep-visual { max-width: 100%; }
            body { padding-bottom: 72px; }
            .mobile-tabbar {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                z-index: 200;
                background: rgba(255, 255, 255, .96);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                border-top: 1px solid var(--border);
                height: 64px;
                box-shadow: 0 -4px 16px rgba(15, 23, 42, .06);
            }
            .tab-item {
                flex: 1;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 2px;
                font-size: 11px;
                color: var(--text-weak);
                transition: var(--transition);
            }
            .tab-item i { font-size: 18px; }
            .tab-item.active { color: var(--primary); font-weight: 600; }
            .tab-item.active i { transform: translateY(-1px); }
            .tab-item:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: 8px; }
        }

        @media (max-width: 520px) {
            .filter-tabs { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
            .filter-tab { flex-shrink: 0; }
            .news-item { flex-direction: column; }
            .news-item img { width: 100%; height: 120px; }
            .feature-body h3 { font-size: 18px; }
            .page-banner p { font-size: 15px; }
            .cta-info h2 { font-size: 22px; }
            .stat-num { font-size: 24px; }
            .stat-card { padding: 22px 14px; }
            .brand-text { font-size: 18px; }
            .brand-mark { width: 38px; height: 38px; font-size: 15px; }
        }