/* roulang page: index */
:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #e11d48;
  --color-accent-dark: #be123c;
  --color-gold: #f59e0b;
  --color-bg: #f8fafc;
  --color-bg-dark: #020617;
  --color-text: #1e293b;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-xs: 0 1px 3px rgba(2, 6, 23, .04);
  --shadow-sm: 0 2px 12px rgba(2, 6, 23, .06);
  --shadow-md: 0 8px 30px rgba(2, 6, 23, .09);
  --shadow-lg: 0 20px 50px rgba(2, 6, 23, .14);
  --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease, background .2s ease, border-color .2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--color-accent); background: rgba(225, 29, 72, .08); padding: 6px 16px; border-radius: 999px; }
.section-tag::before { content: ''; width: 6px; height: 6px; border-radius: 99px; background: var(--color-accent); }
.section-title { font-size: 36px; font-weight: 800; line-height: 1.18; color: var(--color-primary); margin: 16px 0 10px; letter-spacing: -.02em; }
.section-subtitle { font-size: 16px; color: var(--color-muted); max-width: 680px; line-height: 1.8; }

/* Header / Nav */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .92); backdrop-filter: blur(18px); border-bottom: 1px solid var(--color-border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 78px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, var(--color-accent), #f43f5e); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 4px 16px rgba(225, 29, 72, .3); }
.brand-text { font-size: 19px; font-weight: 800; letter-spacing: .02em; color: var(--color-primary); white-space: nowrap; }
.nav-search-form { flex: 1; max-width: 520px; display: flex; align-items: center; background: var(--color-bg); border: 1.5px solid var(--color-border); border-radius: 999px; padding: 5px 6px 5px 20px; transition: border-color .25s, box-shadow .25s, background .25s; }
.nav-search-form:focus-within { border-color: var(--color-accent); background: #fff; box-shadow: 0 0 0 4px rgba(225, 29, 72, .1); }
.nav-search-form .search-icon { color: var(--color-muted); font-size: 14px; }
.nav-search-form input { flex: 1; border: none; background: transparent; outline: none; font-size: 14px; padding: 7px 10px; color: var(--color-text); min-width: 0; }
.nav-search-form input::placeholder { color: #94a3b8; }
.nav-search-form .search-btn { background: var(--color-primary); color: #fff; border-radius: 999px; padding: 9px 22px; font-size: 13px; font-weight: 600; transition: background .25s, transform .2s; white-space: nowrap; }
.nav-search-form .search-btn:hover { background: var(--color-accent); transform: scale(1.03); }
.main-nav { display: flex; align-items: center; gap: 2px; flex-shrink: 0; }
.nav-link { padding: 9px 15px; border-radius: 10px; font-size: 14.5px; font-weight: 500; color: var(--color-muted); transition: color .2s, background .2s; position: relative; white-space: nowrap; }
.nav-link:hover { color: var(--color-primary); background: var(--color-bg); }
.nav-link.active { color: var(--color-accent); font-weight: 700; }
.nav-link.active::after { content: ''; position: absolute; left: 15px; right: 15px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--color-accent); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; font-size: 18px; color: var(--color-primary); background: var(--color-bg); }
.mobile-menu { display: none; padding: 12px 24px 24px; background: #fff; border-bottom: 1px solid var(--color-border); }
.mobile-menu.open { display: block; }
.mobile-nav-link { display: block; padding: 14px 10px; font-size: 15px; font-weight: 500; color: var(--color-text); border-radius: 10px; border-bottom: 1px solid var(--color-border); }
.mobile-nav-link:last-child { border-bottom: none; }
.mobile-nav-link.active { color: var(--color-accent); font-weight: 700; background: rgba(225, 29, 72, .05); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 30px; border-radius: 999px; font-size: 15px; font-weight: 700; transition: all .3s ease; cursor: pointer; }
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 6px 24px rgba(225, 29, 72, .3); }
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-3px); box-shadow: 0 10px 34px rgba(225, 29, 72, .4); }
.btn-outline { border: 2px solid rgba(255, 255, 255, .55); color: #fff; background: transparent; backdrop-filter: blur(6px); }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, .12); transform: translateY(-3px); }
.btn-outline-dark { border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-outline-dark:hover { background: var(--color-primary); color: #fff; transform: translateY(-3px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }

/* Badge */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; border-radius: 999px; font-size: 12px; font-weight: 700; letter-spacing: .04em; }
.badge-red { background: rgba(225, 29, 72, .1); color: var(--color-accent); }
.badge-gold { background: rgba(245, 158, 11, .14); color: #b45309; }
.badge-slate { background: rgba(15, 23, 42, .08); color: var(--color-primary); }

/* Hero */
.hero { position: relative; min-height: 680px; display: flex; align-items: center; background-size: cover; background-position: center; color: #fff; overflow: hidden; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(2, 6, 23, .93) 0%, rgba(2, 6, 23, .78) 50%, rgba(2, 6, 23, .4) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 820px; padding: 90px 0 100px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px; border-radius: 999px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); font-size: 13px; font-weight: 600; letter-spacing: .08em; backdrop-filter: blur(8px); }
.hero-badge .dot { width: 7px; height: 7px; border-radius: 99px; background: #fcd34d; box-shadow: 0 0 12px rgba(252, 211, 77, .8); }
.hero-title { font-size: 62px; font-weight: 900; line-height: 1.08; letter-spacing: -.02em; margin: 26px 0 18px; color: #fff; }
.hero-title span { background: linear-gradient(90deg, #f43f5e, #fb923c); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-desc { font-size: 18px; color: rgba(255, 255, 255, .82); max-width: 580px; line-height: 1.8; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 52px; padding-top: 36px; border-top: 1px solid rgba(255, 255, 255, .14); }
.stat-block { padding: 8px 12px; border-left: 3px solid rgba(255, 255, 255, .25); transition: border-color .3s; }
.stat-block strong { display: block; font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; letter-spacing: -.02em; }
.stat-block span { font-size: 13px; color: rgba(255, 255, 255, .65); letter-spacing: .06em; }
.stat-block:hover { border-left-color: var(--color-accent); }

/* Feature Strip */
.feature-strip { background: #fff; border-bottom: 1px solid var(--color-border); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.feature-item { display: flex; align-items: center; gap: 16px; padding: 32px 24px; border-right: 1px solid var(--color-border); transition: background .3s; }
.feature-item:last-child { border-right: none; }
.feature-item:hover { background: var(--color-bg); }
.feature-icon { width: 50px; height: 50px; flex-shrink: 0; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.feature-icon.red { background: rgba(225, 29, 72, .1); color: var(--color-accent); }
.feature-icon.gold { background: rgba(245, 158, 11, .14); color: #b45309; }
.feature-icon.slate { background: rgba(15, 23, 42, .1); color: var(--color-primary); }
.feature-icon.green { background: rgba(16, 185, 129, .1); color: #059669; }
.feature-item h3 { font-size: 16px; font-weight: 700; color: var(--color-primary); margin-bottom: 2px; }
.feature-item p { font-size: 13px; color: var(--color-muted); }

/* Category Cards */
.category-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .35s cubic-bezier(.4, 0, .2, 1), box-shadow .35s; }
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.category-card .cat-img { height: 210px; object-fit: cover; width: 100%; }
.category-card .cat-mask { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(2, 6, 23, .88) 100%); }
.category-card .cat-body { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px; z-index: 2; }
.category-card .cat-title { font-size: 21px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.category-card .cat-desc { font-size: 13px; color: rgba(255, 255, 255, .75); line-height: 1.6; margin-bottom: 12px; }
.category-card .cat-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: #fcd34d; transition: gap .3s; }
.category-card .cat-link:hover { gap: 12px; }

/* News Cards */
.news-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 26px; display: flex; flex-direction: column; gap: 12px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-card-top { display: flex; justify-content: space-between; align-items: center; }
.news-date { font-size: 13px; color: var(--color-muted); }
.news-title { font-size: 18px; font-weight: 700; color: var(--color-primary); line-height: 1.45; }
.news-title a:hover { color: var(--color-accent); }
.news-excerpt { font-size: 14px; color: var(--color-muted); line-height: 1.7; flex: 1; }
.read-more { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--color-accent); transition: gap .3s; }
.read-more:hover { gap: 12px; }

/* Intro About */
.about-section { background: #fff; }
.about-image-wrap { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-md); }
.about-image-wrap img { height: 100%; min-height: 420px; object-fit: cover; width: 100%; }
.about-quote { position: absolute; left: 20px; right: 20px; bottom: 20px; background: rgba(2, 6, 23, .75); backdrop-filter: blur(12px); border-radius: 16px; padding: 18px 22px; color: #fff; border-left: 4px solid var(--color-accent); }
.about-quote p { font-size: 14px; line-height: 1.7; }
.about-list { display: flex; flex-direction: column; gap: 18px; margin-top: 24px; }
.about-list-item { display: flex; gap: 14px; align-items: flex-start; }
.about-list-icon { width: 28px; height: 28px; flex-shrink: 0; border-radius: 8px; background: rgba(16, 185, 129, .12); color: #059669; display: flex; align-items: center; justify-content: center; font-size: 13px; margin-top: 3px; }
.about-list-item h4 { font-size: 16px; font-weight: 700; color: var(--color-primary); }
.about-list-item p { font-size: 14px; color: var(--color-muted); }

/* Process Steps */
.steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 48px; }
.step-card { position: relative; padding: 32px 24px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); transition: transform .3s, box-shadow .3s; }
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-number { width: 48px; height: 48px; border-radius: 14px; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800; margin-bottom: 18px; }
.step-card:nth-child(2) .step-number { background: var(--color-accent); }
.step-card:nth-child(3) .step-number { background: var(--color-gold); }
.step-card:nth-child(4) .step-number { background: #059669; }
.step-card h3 { font-size: 17px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--color-muted); line-height: 1.6; }
.step-arrow { position: absolute; top: 48px; right: -22px; z-index: 2; color: #cbd5e1; font-size: 16px; }

/* Featured Content Cards */
.feature-content-card { border-radius: var(--radius-lg); overflow: hidden; background: #fff; box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s; }
.feature-content-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-content-card img { width: 100%; height: 190px; object-fit: cover; }
.feature-content-card .content-body { padding: 22px; }
.feature-content-card h3 { font-size: 17px; font-weight: 700; color: var(--color-primary); margin-bottom: 8px; line-height: 1.4; }
.feature-content-card p { font-size: 14px; color: var(--color-muted); line-height: 1.6; margin-bottom: 14px; }

/* FAQ */
.faq-wrap { max-width: 840px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 16px; overflow: hidden; transition: box-shadow .3s; }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 28px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--color-primary); }
.faq-question i { transition: transform .3s; color: var(--color-accent); }
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer { padding: 0 28px; max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s ease; }
.faq-item.open .faq-answer { padding: 0 28px 24px; max-height: 300px; }
.faq-answer p { font-size: 14.5px; color: var(--color-muted); line-height: 1.8; }

/* CTA */
.cta-section { position: relative; background-size: cover; background-position: center; border-radius: 0; overflow: hidden; }
.cta-inner { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 18px; padding: 90px 24px; color: #fff; }
.cta-inner h2 { font-size: 40px; font-weight: 900; letter-spacing: -.02em; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, .8); max-width: 560px; }

/* Footer */
.site-footer { background: var(--color-bg-dark); color: #94a3b8; padding-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: .04em; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: #94a3b8; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 14px; }
.footer-contact i { color: var(--color-accent); margin-top: 3px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: #64748b; }
.footer-bottom a { font-size: 13px; color: #94a3b8; }
.footer-bottom a:hover { color: #fff; }

/* Responsive */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .hero-title { font-size: 48px; }
  .nav-search-form { max-width: 320px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-item:nth-child(2) { border-right: none; }
  .feature-item:nth-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .nav-search-form { display: none; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .hero { min-height: 560px; }
  .hero-title { font-size: 38px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .section-title { font-size: 28px; }
  .cta-inner h2 { font-size: 30px; }
  .cta-inner { padding: 60px 24px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .hero-title { font-size: 32px; }
  .hero-desc { font-size: 15px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
      --primary: #e63946;
      --primary-dark: #c1121f;
      --deep: #0d1b2a;
      --deep-light: #1b263b;
      --accent: #f4a261;
      --accent-light: #f6bd60;
      --light-bg: #f5f6fa;
      --card-bg: #ffffff;
      --text: #1a2a3a;
      --text-muted: #6b7b8c;
      --border: #e4e9f0;
      --radius: 14px;
      --shadow: 0 8px 30px rgba(13, 27, 42, 0.08);
      --shadow-lg: 0 20px 50px rgba(13, 27, 42, 0.15);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--light-bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a { text-decoration: none; color: inherit; transition: color .25s ease; }
    img { max-width: 100%; display: block; }
    input, button, textarea { font-family: inherit; outline: none; border: none; background: none; }
    ul, ol { list-style: none; }

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

    /* ===== Header & Navigation ===== */
    .site-header {
      background: rgba(13, 27, 42, 0.98);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    }
    .header-inner {
      display: flex;
      align-items: center;
      gap: 20px;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: linear-gradient(135deg, #e63946, #c1121f);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
    }
    .brand-text {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 1px;
      white-space: nowrap;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0 auto;
    }
    .nav-link {
      display: inline-block;
      padding: 8px 16px;
      border-radius: 8px;
      color: rgba(255, 255, 255, 0.75);
      font-size: 15px;
      font-weight: 500;
      transition: all .25s ease;
      white-space: nowrap;
    }
    .nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
    .nav-link.active {
      color: #fff;
      background: rgba(230, 57, 70, 0.25);
      box-shadow: inset 0 0 0 1px rgba(230, 57, 70, 0.4);
    }
    .nav-link.active::after {
      content: '';
      display: block;
      height: 2px;
      border-radius: 2px;
      background: var(--primary);
      margin-top: 4px;
    }
    .header-search {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 50px;
      padding: 0 16px;
      height: 40px;
      transition: all .3s ease;
      width: 260px;
    }
    .header-search:focus-within {
      border-color: rgba(230, 57, 70, 0.6);
      background: rgba(255, 255, 255, 0.15);
      box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
    }
    .search-icon { color: rgba(255, 255, 255, 0.5); font-size: 14px; margin-right: 10px; }
    .header-search input {
      flex: 1;
      background: transparent;
      color: #fff;
      font-size: 14px;
      height: 100%;
    }
    .header-search input::placeholder { color: rgba(255, 255, 255, 0.4); }
    .header-search input:focus { outline: none; }
    .nav-toggle {
      display: none;
      color: #fff;
      font-size: 20px;
      width: 42px;
      height: 42px;
      border-radius: 10px;
      align-items: center;
      justify-content: center;
      transition: background .3s ease;
    }
    .nav-toggle:hover { background: rgba(255, 255, 255, 0.1); }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      background-size: cover;
      background-position: center;
      min-height: 480px;
      display: flex;
      align-items: center;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(13, 27, 42, 0.95) 20%, rgba(13, 27, 42, 0.75) 60%, rgba(13, 27, 42, 0.4) 100%);
      z-index: 1;
    }
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle at 80% 20%, rgba(230, 57, 70, 0.2) 0%, transparent 50%);
      z-index: 2;
      pointer-events: none;
    }
    .hero .container { position: relative; z-index: 3; padding-top: 60px; padding-bottom: 60px; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(230, 57, 70, 0.2);
      border: 1px solid rgba(230, 57, 70, 0.5);
      color: #fca5a5;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 50px;
      letter-spacing: 1px;
      margin-bottom: 20px;
    }
    .hero-content h1 {
      color: #fff;
      font-size: 52px;
      font-weight: 800;
      line-height: 1.15;
      letter-spacing: 2px;
      margin-bottom: 18px;
    }
    .hero-content h1 span {
      display: block;
      color: var(--accent);
      font-size: 36px;
      font-weight: 700;
      margin-top: 6px;
    }
    .hero-content p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 17px;
      max-width: 560px;
      margin-bottom: 30px;
      line-height: 1.8;
    }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 28px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      transition: all .3s ease;
      cursor: pointer;
      border: none;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(230, 57, 70, 0.45);
    }
    .btn-outline-light {
      background: transparent;
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.3);
    }
    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.6);
      transform: translateY(-2px);
    }
    .hero-stats {
      display: flex;
      gap: 40px;
      flex-wrap: wrap;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
    }
    .hero-stat { display: flex; flex-direction: column; }
    .hero-stat .num {
      color: #fff;
      font-size: 32px;
      font-weight: 800;
      line-height: 1.2;
    }
    .hero-stat .num em {
      font-style: normal;
      color: var(--accent);
      font-size: 18px;
    }
    .hero-stat .label {
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
      margin-top: 2px;
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb-wrap {
      background: transparent;
      padding: 18px 0;
      margin-top: -1px;
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .breadcrumb a { color: var(--text-muted); }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb i { font-size: 10px; color: #b8c4cf; }
    .breadcrumb .current { color: var(--text); font-weight: 600; }

    /* ===== Sections ===== */
    .section { padding: 84px 0; }
    .section-alt { background: #fff; }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(230, 57, 70, 0.08);
      padding: 5px 14px;
      border-radius: 50px;
      margin-bottom: 14px;
    }
    .section-tag-light { background: rgba(230, 57, 70, 0.2); color: #fca5a5; }
    .section-title {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 14px;
      letter-spacing: 1px;
    }
    .section-title-light { color: #fff; }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.8;
    }
    .section-desc-light { color: rgba(255, 255, 255, 0.7); }

    /* ===== Guide Steps ===== */
    .steps-section {
      background: var(--light-bg);
      position: relative;
    }
    .steps-section::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(230, 57, 70, 0.2), transparent);
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 44px;
    }
    .step-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 30px 26px;
      border: 1px solid var(--border);
      position: relative;
      box-shadow: var(--shadow);
      transition: transform .3s ease, box-shadow .3s ease;
      overflow: hidden;
    }
    .step-card::after {
      content: '';
      position: absolute;
      top: 0; left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
      opacity: 0;
      transition: opacity .3s ease;
    }
    .step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .step-card:hover::after { opacity: 1; }
    .step-num {
      font-size: 34px;
      font-weight: 900;
      color: rgba(230, 57, 70, 0.12);
      line-height: 1;
      margin-bottom: 18px;
      letter-spacing: 2px;
    }
    .step-icon {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: rgba(230, 57, 70, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 18px;
      position: relative;
    }
    .step-icon::after {
      content: '';
      position: absolute;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      top: -2px; right: -2px;
      box-shadow: 0 0 0 2px #fff;
    }
    .step-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }
    .step-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
    .step-tag {
      display: inline-block;
      font-size: 11px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(244, 162, 97, 0.12);
      padding: 3px 10px;
      border-radius: 50px;
      margin-bottom: 14px;
      letter-spacing: 1px;
      text-transform: uppercase;
    }

    /* ===== Knowledge Cards ===== */
    .knowledge-section { background: #fff; }
    .knowledge-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 44px;
    }
    .knowledge-card {
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      overflow: hidden;
      transition: transform .3s ease, box-shadow .3s ease;
      display: flex;
      flex-direction: column;
    }
    .knowledge-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .knowledge-card-img {
      position: relative;
      height: 190px;
      overflow: hidden;
      background: var(--deep);
    }
    .knowledge-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .knowledge-card:hover .knowledge-card-img img { transform: scale(1.06); }
    .knowledge-card-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(13, 27, 42, 0.6) 0%, transparent 50%);
    }
    .knowledge-card-img .img-tag {
      position: absolute;
      z-index: 2;
      top: 12px;
      left: 12px;
      background: rgba(230, 57, 70, 0.9);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 50px;
      box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
    }
    .knowledge-card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
    .knowledge-card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
    .knowledge-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 18px; flex: 1; }
    .knowledge-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }
    .meta-time { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
    .card-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap .3s ease;
    }
    .card-link:hover { gap: 10px; }

    /* ===== Content List ===== */
    .content-section { background: var(--light-bg); }
    .content-list {
      margin-top: 40px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .content-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px 26px;
      display: flex;
      align-items: center;
      gap: 20px;
      transition: all .3s ease;
      position: relative;
      overflow: hidden;
    }
    .content-item::before {
      content: '';
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 3px;
      background: var(--primary);
      opacity: 0;
      transition: opacity .3s ease;
    }
    .content-item:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: rgba(230, 57, 70, 0.3); }
    .content-item:hover::before { opacity: 1; }
    .content-item-icon {
      width: 48px; height: 48px;
      border-radius: 12px;
      background: rgba(230, 57, 70, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }
    .content-item-main { flex: 1; min-width: 0; }
    .content-item-main h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 4px;
      transition: color .3s ease;
    }
    .content-item-main h3:hover { color: var(--primary); }
    .content-item-main p { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }
    .content-item-tags { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
    .tag-small {
      font-size: 12px;
      background: rgba(13, 27, 42, 0.05);
      color: var(--text-muted);
      padding: 2px 10px;
      border-radius: 50px;
    }
    .content-item-info {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 8px;
      flex-shrink: 0;
    }
    .info-date { font-size: 13px; color: #b0bac4; }
    .info-time { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }

    /* ===== Data Panel ===== */
    .data-section {
      background: var(--deep);
      position: relative;
      overflow: hidden;
    }
    .data-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle at 90% 10%, rgba(230, 57, 70, 0.15) 0%, transparent 45%),
                        radial-gradient(circle at 10% 90%, rgba(244, 162, 97, 0.1) 0%, transparent 50%);
      pointer-events: none;
    }
    .data-section .container { position: relative; z-index: 2; }
    .data-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
      margin-top: 40px;
    }
    .data-info { color: #fff; }
    .data-info p.section-desc-light { margin-bottom: 28px; }
    .data-highlight {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
    }
    .data-highlight-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 14px;
      padding: 18px 24px;
      min-width: 130px;
      transition: border-color .3s ease, transform .3s ease;
    }
    .data-highlight-item:hover { border-color: rgba(230, 57, 70, 0.4); transform: translateY(-2px); }
    .data-highlight-item .num {
      font-size: 28px;
      font-weight: 800;
      color: #fff;
      display: block;
      line-height: 1.3;
    }
    .data-highlight-item .num i { color: var(--accent); font-size: 14px; font-style: normal; }
    .data-highlight-item .label { font-size: 13px; color: rgba(255, 255, 255, 0.5); }
    .data-chart {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 30px;
      backdrop-filter: blur(4px);
    }
    .data-chart-title {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .data-chart-title i { color: var(--primary); }
    .data-chart-sub { font-size: 13px; color: rgba(255, 255, 255, 0.5); margin-bottom: 24px; }
    .data-bar { margin-bottom: 18px; }
    .data-bar-label {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 6px;
    }
    .data-bar-label span { font-size: 14px; color: rgba(255, 255, 255, 0.85); }
    .data-bar-label .val { font-weight: 700; color: var(--accent); }
    .progress-track {
      height: 6px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 50px;
      overflow: hidden;
      position: relative;
    }
    .progress-fill {
      height: 100%;
      border-radius: 50px;
      transition: width 1s ease;
      position: relative;
    }
    .progress-fill::after {
      content: '';
      position: absolute;
      top: 50%;
      right: 0;
      transform: translateY(-50%);
      width: 10px;
      height: 10px;
      background: #fff;
      border-radius: 50%;
      box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
    }

    /* ===== FAQ ===== */
    .faq-section { background: #fff; }
    .faq-grid {
      max-width: 800px;
      margin: 40px auto 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--light-bg);
      border: 1px solid var(--border);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color .3s ease, box-shadow .3s ease;
    }
    .faq-item:hover { border-color: rgba(230, 57, 70, 0.3); }
    .faq-item.open { border-color: rgba(230, 57, 70, 0.4); box-shadow: 0 6px 20px rgba(13, 27, 42, 0.06); }
    .faq-question {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 18px 22px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      transition: color .3s ease;
      user-select: none;
    }
    .faq-question:hover { color: var(--primary); }
    .faq-q-icon {
      width: 28px; height: 28px;
      border-radius: 8px;
      background: rgba(230, 57, 70, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .faq-toggle {
      margin-left: auto;
      width: 28px; height: 28px;
      border-radius: 50%;
      border: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
      font-size: 12px;
      transition: all .3s ease;
      flex-shrink: 0;
    }
    .faq-item.open .faq-toggle {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
      padding: 0 22px;
      border-top: 0 solid transparent;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 22px 20px 64px;
      border-top-width: 1px;
      border-top-style: solid;
      border-top-color: var(--border);
    }
    .faq-answer p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      padding-top: 16px;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--deep);
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: linear-gradient(135deg, rgba(230, 57, 70, 0.15) 0%, transparent 50%), 
                        radial-gradient(circle at 70% 30%, rgba(244, 162, 97, 0.2) 0%, transparent 40%);
      pointer-events: none;
    }
    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 70px 0;
    }
    .cta-inner h2 {
      color: #fff;
      font-size: 38px;
      font-weight: 800;
      letter-spacing: 2px;
      margin-bottom: 16px;
    }
    .cta-inner h2 i { color: var(--primary); font-style: normal; }
    .cta-inner p {
      color: rgba(255, 255, 255, 0.7);
      font-size: 17px;
      max-width: 600px;
      margin: 0 auto 30px;
      line-height: 1.8;
    }
    .cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

    /* ===== Footer ===== */
    .site-footer {
      background: #0a1524;
      padding: 60px 0 0;
      color: rgba(255, 255, 255, 0.75);
      border-top: 3px solid var(--primary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand .brand-text { font-size: 18px; }
    .footer-brand p { font-size: 14px; color: rgba(255, 255, 255, 0.5); line-height: 1.8; margin-top: 16px; }
    .footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-title::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0;
      width: 30px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      list-style: none;
    }
    .footer-links a { transition: color .3s ease, padding-left .3s ease; }
    .footer-links a:hover { color: var(--accent); padding-left: 5px; }
    .footer-contact { display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: rgba(255, 255, 255, 0.55); list-style: none; }
    .footer-contact li { display: flex; align-items: center; gap: 8px; }
    .footer-contact i { color: var(--accent); }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 20px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.35); }
    .footer-bottom a {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color .3s ease, gap .3s ease;
    }
    .footer-bottom a:hover { color: var(--accent); gap: 10px; }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .header-search { width: 200px; }
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
      .knowledge-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
      .data-grid { grid-template-columns: 1fr; gap: 30px; }
    }
    @media (max-width: 768px) {
      .header-inner { height: auto; flex-wrap: wrap; padding: 14px 0; }
      .brand-logo { margin-right: auto; }
      .nav-toggle { display: flex; }
      .main-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
      }
      .main-nav.open { display: flex; }
      .nav-link { padding: 12px 16px; text-align: center; }
      .nav-link.active { background: rgba(230, 57, 70, 0.15); }
      .header-search { width: 100%; margin-top: 8px; }
      .hero-content h1 { font-size: 34px; }
      .hero-content h1 span { font-size: 26px; }
      .hero-content p { font-size: 15px; }
      .hero { min-height: 400px; }
      .hero-stats { gap: 24px; }
      .section { padding: 56px 0; }
      .section-title { font-size: 28px; }
      .steps-grid, .knowledge-grid { grid-template-columns: 1fr; }
      .content-item { flex-direction: column; align-items: flex-start; gap: 14px; }
      .content-item-info { flex-direction: row; align-items: center; width: 100%; justify-content: flex-start; }
      .data-grid { gap: 24px; }
      .data-chart { padding: 20px; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .cta-inner { padding: 50px 0; }
      .cta-inner h2 { font-size: 28px; }
    }
    @media (max-width: 520px) {
      .container { padding: 0 16px; }
      .hero-content h1 { font-size: 28px; }
      .hero-content h1 span { font-size: 22px; }
      .btn { padding: 11px 20px; font-size: 14px; width: 100%; justify-content: center; }
      .hero-actions { flex-direction: column; }
      .hero-stat .num { font-size: 26px; }
      .step-card { padding: 22px 18px; }
      .knowledge-card-img { height: 160px; }
      .faq-question { font-size: 15px; padding: 16px 16px; }
      .faq-item.open .faq-answer { padding: 0 16px 18px 52px; }
      .section-title { font-size: 24px; }
      .section-desc { font-size: 14px; }
    }

    /* Focus accessibility */
    a:focus-visible, button:focus-visible, input:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

/* roulang page: article */
:root {
    --primary: #e11d48;
    --primary-dark: #9f1239;
    --primary-light: #fff1f2;
    --dark-bg: #0b1120;
    --dark-card: #151e31;
    --surface: #ffffff;
    --bg-soft: #f6f8fb;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04);
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
    --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-soft);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
ul, ol {
    list-style: none;
}
input, button, textarea {
    font-family: inherit;
    outline: none;
    border: none;
}
button {
    cursor: pointer;
}

/* ===== 按钮 ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--primary);
    color: #fff;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(225, 29, 72, 0.25);
    transition: var(--transition);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(225, 29, 72, 0.32);
    color: #fff;
}
.btn-primary:active {
    transform: translateY(0);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--text-main);
    padding: 13px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    border: 1.5px solid var(--border);
    transition: var(--transition);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-1px);
}

/* ===== 头部导航 ===== */
.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, 0.7);
    transition: box-shadow 0.3s;
}
.site-header.is-scrolled {
    box-shadow: 0 6px 30px rgba(15, 23, 42, 0.07);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 76px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, #e11d48, #be123c);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 4px 16px rgba(225, 29, 72, 0.35);
}
.brand-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
    white-space: nowrap;
    background: linear-gradient(90deg, #0f172a, #334155);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.search-form {
    flex: 1;
    max-width: 480px;
    position: relative;
    margin: 0 auto;
}
.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #f1f5f9;
    border: 1.5px solid transparent;
    border-radius: 999px;
    padding: 0 16px;
    height: 44px;
    transition: var(--transition);
}
.search-box:focus-within {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(225, 29, 72, 0.1);
}
.search-icon {
    color: var(--text-muted);
    font-size: 14px;
    flex-shrink: 0;
}
.search-box input {
    flex: 1;
    background: transparent;
    font-size: 14px;
    color: var(--text-main);
    min-width: 0;
}
.search-box input::placeholder {
    color: var(--text-light);
}
.search-kbd {
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-light);
    background: #fff;
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 6px;
    font-family: ui-monospace, monospace;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    transition: var(--transition);
    white-space: nowrap;
}
.nav-link:hover {
    color: var(--text-main);
    background: #f1f5f9;
}
.nav-link.active {
    color: #fff;
    background: var(--primary);
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(225, 29, 72, 0.25);
}
.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: #f1f5f9;
    color: var(--text-main);
    font-size: 17px;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}
.menu-toggle:hover {
    background: #e2e8f0;
}

/* ===== 文章 Hero ===== */
.article-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(11, 17, 32, 0.94), rgba(30, 41, 59, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    padding: 80px 0 72px;
    overflow: hidden;
}
.article-hero::after {
    content: '';
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: rgba(225, 29, 72, 0.18);
    filter: blur(80px);
    top: -120px;
    right: -80px;
    pointer-events: none;
}
.article-hero .container {
    position: relative;
    z-index: 2;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 28px;
}
.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}
.breadcrumb a:hover {
    color: #fff;
}
.breadcrumb i {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.35);
}
.article-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(225, 29, 72, 0.9);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(225, 29, 72, 0.35);
}
.article-hero h1 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.02em;
    max-width: 820px;
    margin-bottom: 20px;
}
.article-hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
}
.article-hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.article-hero-meta i {
    color: rgba(225, 29, 72, 0.8);
    font-size: 13px;
}

/* ===== 文章主体 ===== */
.article-section {
    padding: 64px 0;
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: start;
}
.article-main-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
}
.article-featured-img {
    position: relative;
    aspect-ratio: 16 / 8;
    overflow: hidden;
}
.article-featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.article-main-card:hover .article-featured-img img {
    transform: scale(1.02);
}
.article-featured-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(15, 23, 42, 0.25));
    pointer-events: none;
}
.article-body-wrap {
    padding: 40px;
}

/* 正文内容排版 */
.prose-article {
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
}
.prose-article p {
    margin-bottom: 20px;
}
.prose-article h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    margin: 40px 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-soft);
    letter-spacing: -0.01em;
}
.prose-article h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-main);
    margin: 32px 0 12px;
}
.prose-article h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin: 24px 0 10px;
}
.prose-article ul,
.prose-article ol {
    margin: 0 0 20px;
    padding-left: 24px;
}
.prose-article ul {
    list-style: disc;
}
.prose-article ol {
    list-style: decimal;
}
.prose-article li {
    margin-bottom: 8px;
}
.prose-article a {
    color: var(--primary);
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 4px;
}
.prose-article a:hover {
    color: var(--primary-dark);
}
.prose-article blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 24px;
    border-radius: 0 10px 10px 0;
    margin: 24px 0;
    color: #475569;
    font-style: italic;
}
.prose-article img {
    border-radius: 12px;
    margin: 24px 0;
    box-shadow: var(--shadow);
}
.prose-article code {
    background: #f1f5f9;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    font-family: ui-monospace, SFMono-Regular, monospace;
    color: var(--primary);
}
.prose-article pre {
    background: var(--dark-bg);
    color: #e2e8f0;
    padding: 24px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px;
    line-height: 1.7;
}
.prose-article pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}
.prose-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.prose-article th {
    background: var(--dark-bg);
    color: #fff;
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
}
.prose-article td {
    border: 1px solid var(--border);
    padding: 10px 16px;
}
.prose-article tr:nth-child(even) td {
    background: var(--bg-soft);
}

/* 标签 */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid var(--bg-soft);
}
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-soft);
    color: var(--text-muted);
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 999px;
    transition: var(--transition);
}
.tag-chip i {
    font-size: 11px;
    color: var(--primary);
}
.tag-chip:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* 底部导航条 */
.article-footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--bg-soft);
    flex-wrap: wrap;
}
.article-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}
.article-back-link:hover {
    color: var(--primary);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 8px;
}
.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--bg-soft);
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: var(--transition);
}
.share-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

/* ===== 侧边栏 ===== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 96px;
}
.sidebar-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.sidebar-card:hover {
    box-shadow: var(--shadow-lg);
}
.sidebar-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--bg-soft);
}
.sidebar-title i {
    color: var(--primary);
    font-size: 15px;
}
.sidebar-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.sidebar-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
}
.sidebar-links a:hover {
    background: var(--primary-light);
    color: var(--primary);
}
.sidebar-links a i {
    width: 22px;
    text-align: center;
    color: var(--text-light);
    font-size: 13px;
    transition: var(--transition);
}
.sidebar-links a:hover i {
    color: var(--primary);
}
.sidebar-steps {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.sidebar-step {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.step-num {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 3px 10px rgba(225, 29, 72, 0.25);
}
.sidebar-step p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}
.sidebar-step p strong {
    display: block;
    font-size: 14px;
    color: var(--text-main);
    margin-bottom: 2px;
}
.sidebar-contact-card {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    border-radius: var(--radius);
    padding: 28px;
    color: #fff;
    position: relative;
    overflow: hidden;
    border: none;
}
.sidebar-contact-card::after {
    content: '';
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(225, 29, 72, 0.25);
    filter: blur(50px);
    bottom: -50px;
    right: -30px;
}
.sidebar-contact-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}
.sidebar-contact-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}
.sidebar-contact-card .btn-primary {
    position: relative;
    z-index: 1;
    width: 100%;
}

/* ===== 资源推荐 ===== */
.resource-section {
    padding: 72px 0;
    background: #fff;
}
.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
    line-height: 1.3;
}
.section-header p {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 480px;
}
.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.resource-card {
    background: var(--bg-soft);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid transparent;
    transition: var(--transition);
    position: relative;
}
.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(225, 29, 72, 0.15);
    background: #fff;
}
.resource-card-img {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
}
.resource-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.resource-card:hover .resource-card-img img {
    transform: scale(1.05);
}
.resource-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.2));
}
.resource-card-body {
    padding: 24px;
}
.resource-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 10px;
    line-height: 1.4;
}
.resource-card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 0;
}
.resource-card-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 12px;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 72px 0;
    background: var(--bg-soft);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.faq-item {
    background: #fff;
    border: 1px solid rgba(226, 232, 240, 0.7);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.faq-item:hover {
    box-shadow: var(--shadow);
    border-color: rgba(225, 29, 72, 0.15);
}
.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    list-style: none;
    position: relative;
    padding-right: 40px;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 16px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}
.faq-item[open] summary::after {
    transform: translateY(-50%) rotate(180deg);
}
.faq-item .faq-answer {
    padding-top: 16px;
    margin-top: 14px;
    border-top: 1px solid var(--bg-soft);
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 88px 0;
    background: linear-gradient(135deg, rgba(11, 17, 32, 0.95), rgba(15, 23, 42, 0.88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
    text-align: center;
}
.cta-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(225, 29, 72, 0.15);
    filter: blur(100px);
    top: -150px;
    left: 50%;
    transform: translateX(-50%);
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 16px;
}
.cta-section p {
    color: rgba(255, 255, 255, 0.65);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.8;
}
.cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 未找到 ===== */
.not-found-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
}
.not-found-card i {
    font-size: 44px;
    color: var(--primary);
    margin-bottom: 20px;
    display: inline-block;
}
.not-found-card h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}
.not-found-card p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 28px;
}

/* ===== 页脚 ===== */
.site-footer {
    background: #0b1120;
    color: rgba(255, 255, 255, 0.65);
    padding: 64px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand-logo {
    margin-bottom: 16px;
}
.footer-brand .brand-text {
    color: #fff;
    -webkit-text-fill-color: #fff;
    font-size: 20px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.5);
    max-width: 300px;
}
.footer-title {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    border-radius: 2px;
    background: var(--primary);
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}
.footer-links a:hover {
    color: #fff;
    padding-left: 6px;
    color: #fda4af;
}
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
}
.footer-contact li i {
    color: var(--primary);
    font-size: 14px;
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
    transition: var(--transition);
}
.footer-bottom a:hover {
    color: #fda4af;
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    z-index: 99;
    flex-direction: column;
    gap: 8px;
}
.mobile-menu.open {
    display: flex;
}
.mobile-menu .nav-link {
    padding: 12px 16px;
    font-size: 15px;
    width: 100%;
    justify-content: flex-start;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .sidebar-card {
        flex: 1;
        min-width: 280px;
    }
    .resource-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}
@media (max-width: 768px) {
    .header-inner {
        height: 64px;
        gap: 12px;
    }
    .brand-text {
        font-size: 17px;
    }
    .brand-mark {
        width: 36px;
        height: 36px;
        font-size: 15px;
    }
    .main-nav {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .search-form {
        max-width: none;
    }
    .article-hero {
        padding: 56px 0 48px;
    }
    .article-body-wrap {
        padding: 24px;
    }
    .article-section {
        padding: 48px 0;
    }
    .section-header {
        margin-bottom: 28px;
    }
    .resource-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        justify-content: center;
        text-align: center;
    }
    .cta-section {
        padding: 60px 0;
    }
}
@media (max-width: 520px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
    .header-inner {
        gap: 8px;
    }
    .search-kbd {
        display: none;
    }
    .search-box {
        padding: 0 12px;
        height: 40px;
    }
    .article-hero h1 {
        font-size: 24px;
    }
    .article-hero-meta {
        gap: 12px;
        font-size: 13px;
    }
    .article-body-wrap {
        padding: 20px;
    }
    .prose-article {
        font-size: 15px;
    }
    .prose-article h2 {
        font-size: 20px;
    }
    .sidebar-card {
        min-width: 100%;
    }
    .cta-btns {
        flex-direction: column;
    }
    .cta-btns .btn-primary,
    .cta-btns .btn-outline {
        width: 100%;
    }
}

/* roulang page: category3 */
:root {
            --primary: #d92b22;
            --primary-dark: #b81f17;
            --primary-light: #ff6b64;
            --accent: #0ea5e9;
            --dark-bg: #0f172a;
            --dark-panel: #1e293b;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --bg-soft: #f8fafc;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-hover: 0 10px 32px rgba(0,0,0,0.14);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background-color: #f8fafc;
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header ===== */
        .site-header {
            background: rgba(15, 23, 42, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0.75rem 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, #f53d34, #d92b22);
            border-radius: 10px;
            font-size: 1.15rem;
            color: #fff;
            box-shadow: 0 4px 14px rgba(217, 43, 34, 0.4);
        }

        .brand-text {
            font-size: 1.1rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.45rem;
            flex-wrap: wrap;
        }

        .nav-link {
            color: #cbd5e1;
            padding: 0.5rem 0.85rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.12);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(217, 43, 34, 0.25);
            border-color: rgba(217, 43, 34, 0.5);
            font-weight: 600;
        }

        .header-search {
            flex: 1;
            min-width: 220px;
            max-width: 440px;
            margin-left: auto;
            position: relative;
        }

        .header-search .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 0.875rem;
            pointer-events: none;
            z-index: 1;
        }

        .header-search input {
            width: 100%;
            padding: 0.6rem 1.1rem 0.6rem 2.6rem;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.07);
            color: #fff;
            font-size: 0.875rem;
            outline: none;
            transition: border-color .2s, background .2s, box-shadow .2s;
        }

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

        .header-search input:focus {
            border-color: rgba(217, 43, 34, 0.6);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(217, 43, 34, 0.2);
        }

        .toggle-menu {
            display: none;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Page Hero / Banner ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(30, 41, 59, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 4.5rem 0 4rem;
            position: relative;
            border-bottom: 3px solid var(--primary);
        }

        .page-hero .page-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(217, 43, 34, 0.95);
            color: #fff;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 1.25rem;
            box-shadow: 0 4px 12px rgba(217, 43, 34, 0.45);
        }

        .page-hero h1 {
            font-size: 2.75rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .page-hero h1 .highlight {
            color: #ff6b64;
            position: relative;
        }

        .page-hero p {
            color: #cbd5e1;
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 1.75rem;
        }

        .page-hero .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .hero-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 1.75rem;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }

        .hero-btn-primary {
            background: linear-gradient(135deg, #f53d34, #d92b22);
            color: #fff;
            box-shadow: 0 4px 18px rgba(217, 43, 34, 0.45);
        }

        .hero-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(217, 43, 34, 0.55);
        }

        .hero-btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.25);
            color: #e2e8f0;
        }

        .hero-btn-outline:hover {
            border-color: rgba(255, 255, 255, 0.6);
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== Section ===== */
        .section {
            padding: 4.5rem 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-darker {
            background: var(--dark-bg);
        }

        .section-header {
            max-width: 680px;
            margin-bottom: 3rem;
        }

        .section-header.text-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .section-header.dark .section-title {
            color: #fff;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== Cards Grid ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: transform .3s, box-shadow .3s, border-color .3s;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(217, 43, 34, 0.3);
        }

        .news-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: #e2e8f0;
        }

        .news-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .card-media img {
            transform: scale(1.04);
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(217, 43, 34, 0.92);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }

        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.65rem;
        }

        .card-meta i {
            color: var(--primary);
        }

        .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            line-height: 1.55;
            margin-bottom: 0.65rem;
            color: var(--text-main);
            transition: color .2s;
        }

        .news-card:hover .card-title {
            color: var(--primary);
        }

        .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.2rem;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        .card-link i {
            transition: transform .2s;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Timeline ===== */
        .timeline-wrap {
            position: relative;
            padding: 0.5rem 0;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 1.1rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, #ff6b64, #0ea5e9 60%, transparent);
            border-radius: 2px;
            opacity: 0.35;
        }

        .timeline-item {
            position: relative;
            padding: 0.35rem 0 2rem 3.25rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 0.65rem;
            top: 1rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(217, 43, 34, 0.15);
        }

        .timeline-item:nth-child(2)::before {
            border-color: #0ea5e9;
            box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15);
        }

        .timeline-item:nth-child(3)::before {
            border-color: #10b981;
            box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
        }

        .timeline-date {
            display: inline-block;
            background: rgba(217, 43, 34, 0.1);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 0.2rem 0.85rem;
            border-radius: 16px;
            margin-bottom: 0.65rem;
            letter-spacing: 0.03em;
        }

        .timeline-item:nth-child(2) .timeline-date {
            background: rgba(14, 165, 233, 0.1);
            color: #0284c7;
        }

        .timeline-item:nth-child(3) .timeline-date {
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
        }

        .timeline-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text-main);
        }

        .timeline-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .dark .timeline-title {
            color: #fff;
        }

        .dark .timeline-text {
            color: #94a3b8;
        }

        /* ===== Data / Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2.5rem;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            text-align: center;
            back-drop-filter: blur(8px);
            transition: border-color .3s, background .3s;
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(217, 43, 34, 0.8), rgba(217, 43, 34, 0.3));
            color: #fff;
            font-size: 1.15rem;
            margin-bottom: 0.9rem;
        }

        .stat-number {
            font-size: 2.25rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 0.25rem;
            letter-spacing: -0.02em;
        }

        .stat-number .unit {
            font-size: 1rem;
            font-weight: 700;
            color: #ff6b64;
            margin-left: 2px;
        }

        .stat-label {
            color: #94a3b8;
            font-size: 0.85rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            position: relative;
            overflow: hidden;
            padding: 4.5rem 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.08;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 2.2rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .cta-desc {
            color: #cbd5e1;
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 2rem;
        }

        .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            padding: 0.9rem 2.2rem;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            transition: all .25s;
            border: 1px solid transparent;
            cursor: pointer;
        }

        .cta-btn-primary {
            background: linear-gradient(135deg, #f53d34, #d92b22);
            color: #fff;
            box-shadow: 0 6px 24px rgba(217, 43, 34, 0.45);
        }

        .cta-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(217, 43, 34, 0.55);
        }

        .cta-btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.15);
            color: #e2e8f0;
        }

        .cta-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-3px);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.75rem;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .faq-question {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.6rem;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            margin-top: 0.25rem;
            flex-shrink: 0;
        }

        .faq-answer {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.75;
            padding-left: 1.5rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 4rem 0 2rem;
            border-top: 3px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .site-footer .brand-text {
            color: #fff;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.55rem;
        }

        .footer-links a {
            color: #94a3b8;
            font-size: 0.885rem;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: #ff6b64;
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            margin-bottom: 0.55rem;
            font-size: 0.855rem;
        }

        .footer-contact i {
            color: var(--primary);
            min-width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.82rem;
        }

        .footer-bottom a {
            color: #ff6b64;
            font-weight: 600;
        }

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

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                width: 100%;
                max-width: 100%;
                margin-left: 0;
                margin-top: 0.5rem;
            }
            .main-nav {
                order: 2;
                margin-left: 0;
                flex: 1;
            }
            .toggle-menu {
                display: flex;
                order: 1;
                margin-left: auto;
            }
            .main-nav {
                display: none;
                width: 100%;
                padding: 0.75rem 0;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                gap: 0.35rem;
            }
            .nav-link {
                padding: 0.6rem 0.9rem;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 3rem 0;
            }
            .page-hero {
                padding: 3rem 0;
            }
        }

        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-contact li {
                justify-content: center;
            }
            .header-search input {
                padding: 0.7rem 1rem 0.7rem 2.5rem;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .cta-title {
                font-size: 1.6rem;
            }
        }

/* roulang page: category2 */
:root {
    --ink: #0b1220;
    --panel: #111a2e;
    --accent: #e11d48;
    --ember: #f59e0b;
    --mist: #94a3b8;
    --surface: #f4f6fb;
    --line: #e2e8f0;
    --radius: 14px;
    --shadow: 0 18px 40px -18px rgba(11, 18, 32, 0.24);
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    background: var(--surface);
    color: var(--ink);
    line-height: 1.7;
    margin: 0;
  }
  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; }
  .container { width: min(1200px, 92%); margin-inline: auto; }

  /* header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(11, 18, 32, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  }
  .header-inner { display: flex; align-items: center; gap: 24px; padding: 14px 0; }
  .brand-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .brand-mark {
    width: 42px; height: 42px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #7f1d1d);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px;
    box-shadow: 0 8px 20px -8px rgba(225, 29, 72, 0.6);
  }
  .brand-text { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: 0.5px; white-space: nowrap; }
  .brand-dot { color: var(--ember); }
  .main-nav { display: flex; gap: 8px; margin-left: 12px; }
  .main-nav .nav-link {
    color: #cbd5e1; font-size: 14px; font-weight: 500;
    padding: 8px 14px; border-radius: 8px;
    transition: all 0.2s;
  }
  .main-nav .nav-link:hover { color: #fff; background: rgba(148, 163, 184, 0.14); }
  .main-nav .nav-link.active { color: #fff; background: rgba(225, 29, 72, 0.85); box-shadow: 0 6px 16px -6px rgba(225, 29, 72, 0.5); }
  .header-tools { display: flex; align-items: center; gap: 12px; margin-left: auto; }
  .header-search {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 10px;
    padding: 8px 14px;
    transition: border-color 0.2s, background 0.2s;
  }
  .header-search i { color: var(--mist); font-size: 13px; }
  .header-search input {
    background: transparent; border: none; outline: none;
    color: #e2e8f0; font-size: 13px; width: 170px;
  }
  .header-search input::placeholder { color: #64748b; }
  .header-search:focus-within { border-color: var(--accent); background: rgba(255,255,255,0.12); }
  .nav-toggle { display: none; background: transparent; border: 1px solid rgba(148,163,184,0.4); color: #e2e8f0; border-radius: 8px; padding: 6px 10px; font-size: 16px; cursor: pointer; }

  /* hero */
  .category-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(11,18,32,0.94), rgba(17,26,46,0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    padding: 88px 0 72px;
    overflow: hidden;
  }
  .category-hero::after {
    content: '';
    position: absolute;
    right: -40px; top: -40px;
    width: 220px; height: 220px;
    border: 2px solid rgba(225, 29, 72, 0.35);
    border-radius: 50%;
    box-shadow: 0 0 0 24px rgba(225, 29, 72, 0.08);
  }
  .hero-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(225, 29, 72, 0.18);
    border: 1px solid rgba(225, 29, 72, 0.45);
    color: #fda4af;
    font-size: 12px; font-weight: 600;
    padding: 4px 14px; border-radius: 30px;
    margin-bottom: 18px;
    letter-spacing: 0.8px;
  }
  .category-hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 900;
    line-height: 1.15;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
  }
  .category-hero p.lead {
    font-size: 16px; color: #cbd5e1; max-width: 620px;
    margin: 0 0 32px;
  }
  .hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
  .hero-stats .stat { display: flex; flex-direction: column; }
  .hero-stats .stat strong { font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
  .hero-stats .stat strong i { color: var(--ember); font-style: normal; }
  .hero-stats .stat span { font-size: 13px; color: #94a3b8; }

  /* section */
  .section { padding: 72px 0; }
  .section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 40px; flex-wrap: wrap; }
  .section-head .eyebrow {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--accent); font-size: 13px; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase;
    margin-bottom: 6px;
  }
  .section-head h2 { font-size: 30px; font-weight: 800; margin: 0; letter-spacing: -0.3px; }
  .section-head p { color: #64748b; font-size: 14px; max-width: 560px; margin: 6px 0 0; }

  /* subcategory chips */
  .subcats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
  .subcat-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px 16px;
    text-align: center;
    transition: all 0.25s;
    position: relative;
  }
  .subcat-card::before {
    content: '';
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 0; height: 3px;
    background: var(--accent);
    border-radius: 0 0 4px 4px;
    transition: width 0.25s;
  }
  .subcat-card:hover { border-color: rgba(225, 29, 72, 0.4); box-shadow: 0 12px 28px -14px rgba(11,18,32,0.18); transform: translateY(-3px); }
  .subcat-card:hover::before { width: 60%; }
  .subcat-card i { font-size: 24px; color: var(--accent); margin-bottom: 10px; }
  .subcat-card h3 { font-size: 15px; font-weight: 700; margin: 0 0 4px; }
  .subcat-card span { font-size: 12px; color: var(--mist); }

  /* article cards */
  .article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 24px; }
  .article-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s;
    display: flex; flex-direction: column;
  }
  .article-card:hover { box-shadow: 0 22px 44px -20px rgba(11,18,32,0.28); transform: translateY(-4px); }
  .card-img { position: relative; aspect-ratio: 16/10; overflow: hidden; }
  .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
  .article-card:hover .card-img img { transform: scale(1.05); }
  .card-tag {
    position: absolute; top: 12px; left: 12px;
    background: rgba(11,18,32,0.82);
    color: #f1f5f9; font-size: 12px; font-weight: 600;
    padding: 3px 12px; border-radius: 30px;
    backdrop-filter: blur(4px);
  }
  .card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
  .card-body h3 { font-size: 17px; font-weight: 700; line-height: 1.45; margin: 0 0 8px; }
  .card-body h3 a { transition: color 0.2s; }
  .card-body h3 a:hover { color: var(--accent); }
  .card-body p { font-size: 13px; color: #64748b; margin: 0 0 16px; flex: 1; }
  .card-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: #94a3b8; padding-top: 12px; border-top: 1px solid #f1f5f9; }
  .card-meta i { margin-right: 4px; }

  /* dark panel / leaderboard */
  .dark-panel {
    background: linear-gradient(145deg, var(--panel), #0d1526);
    color: #fff;
    border-radius: 20px;
    padding: 44px;
    position: relative;
    overflow: hidden;
  }
  .dark-panel::before {
    content: '';
    position: absolute; right: -30px; bottom: -30px;
    width: 150px; height: 150px;
    background: radial-gradient(circle, rgba(225,29,72,0.3), transparent 70%);
  }
  .rank-list { list-style: none; margin: 0; padding: 0; }
  .rank-item {
    display: flex; align-items: center; gap: 16px;
    padding: 14px 10px;
    border-bottom: 1px solid rgba(148,163,184,0.14);
    transition: background 0.2s;
  }
  .rank-item:last-child { border-bottom: none; }
  .rank-item:hover { background: rgba(255,255,255,0.04); }
  .rank-num {
    width: 34px; height: 34px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(148,163,184,0.16);
    color: #e2e8f0; font-weight: 700; font-size: 14px;
    flex-shrink: 0;
  }
  .rank-item:nth-child(1) .rank-num { background: var(--ember); color: #111; }
  .rank-item:nth-child(2) .rank-num { background: #94a3b8; color: #111; }
  .rank-item:nth-child(3) .rank-num { background: #b45309; color: #fff; }
  .rank-info { flex: 1; min-width: 0; }
  .rank-info h4 { font-size: 15px; font-weight: 600; margin: 0 0 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .rank-info .rank-bar { height: 4px; background: rgba(148,163,184,0.18); border-radius: 4px; overflow: hidden; max-width: 320px; }
  .rank-info .rank-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--ember)); border-radius: 4px; }
  .rank-val { font-size: 13px; color: var(--mist); white-space: nowrap; }

  /* process */
  .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .step-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; position: relative; transition: all 0.25s; }
  .step-card:hover { box-shadow: var(--shadow); border-color: rgba(225,29,72,0.3); }
  .step-num {
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--ink); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 16px; margin-bottom: 16px;
  }
  .step-card:nth-child(2) .step-num { background: var(--accent); }
  .step-card:nth-child(3) .step-num { background: #7c3aed; }
  .step-card:nth-child(4) .step-num { background: var(--ember); color: #111; }
  .step-card h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
  .step-card p { font-size: 13px; color: #64748b; margin: 0; }

  /* faq */
  .faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
  .faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 0; overflow: hidden; }
  .faq-trigger {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    background: transparent; border: none; cursor: pointer;
    padding: 18px 22px; font-size: 15px; font-weight: 600; color: var(--ink);
    text-align: left; font-family: inherit;
  }
  .faq-trigger:hover { background: rgba(244,246,251,0.7); }
  .faq-trigger i { color: var(--accent); transition: transform 0.25s; }
  .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
  .faq-answer-inner { padding: 0 22px 20px; font-size: 14px; color: #475569; }

  /* cta */
  .cta-section {
    background: linear-gradient(135deg, #0b1220, #1e1b4b);
    border-radius: 20px;
    color: #fff;
    padding: 48px 52px;
    display: flex; align-items: center; justify-content: space-between; gap: 36px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
  }
  .cta-section::after {
    content: '';
    position: absolute; right: -60px; top: -60px;
    width: 180px; height: 180px;
    background: rgba(225,29,72,0.25);
    border-radius: 50%;
  }
  .cta-section h2 { font-size: 26px; font-weight: 800; margin: 0 0 8px; }
  .cta-section p { color: #cbd5e1; font-size: 14px; margin: 0; max-width: 500px; }
  .cta-btn {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--accent); color: #fff;
    font-weight: 700; font-size: 15px;
    padding: 12px 28px; border-radius: 10px;
    box-shadow: 0 12px 28px -10px rgba(225,29,72,0.6);
    transition: all 0.25s;
    white-space: nowrap;
  }
  .cta-btn:hover { background: #be123c; transform: translateY(-2px); }
  .cta-btn i { transition: transform 0.2s; }
  .cta-btn:hover i { transform: translateX(4px); }

  /* footer */
  .site-footer { background: var(--ink); color: #94a3b8; padding: 56px 0 26px; margin-top: 72px; }
  .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; margin-bottom: 36px; }
  .footer-brand .brand-text { color: #fff; }
  .footer-title { color: #fff; font-size: 15px; font-weight: 700; margin: 0 0 14px; }
  .footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 13px; color: #94a3b8; transition: color 0.2s, padding-left 0.2s; }
  .footer-links a:hover { color: var(--accent); padding-left: 4px; }
  .footer-contact { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
  .footer-contact i { color: var(--accent); width: 20px; margin-right: 4px; }
  .footer-bottom { border-top: 1px solid rgba(148,163,184,0.16); padding-top: 22px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }
  .footer-bottom a { color: #cbd5e1; border-bottom: 1px solid rgba(148,163,184,0.3); transition: all 0.2s; }
  .footer-bottom a:hover { color: var(--accent); border-color: var(--accent); }

  .mega-badge {
    display: inline-block;
    border: 1px solid rgba(225,29,72,0.4);
    background: rgba(225,29,72,0.12);
    color: #fda4af;
    padding: 2px 12px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    margin-right: 8px;
  }

  /* responsive */
  @media (max-width: 1024px) {
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; }
    .nav-toggle { display: block; }
    .main-nav {
      display: none;
      width: 100%; flex-direction: column; gap: 4px;
      padding-top: 10px; order: 4;
    }
    .main-nav.open { display: flex; }
    .header-tools { margin-left: auto; }
    .header-search { flex: 1; max-width: 100%; }
    .header-search input { flex: 1; }
    .category-hero { padding: 60px 0 48px; }
    .section { padding: 52px 0; }
    .dark-panel { padding: 28px 22px; }
    .steps-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cta-section { padding: 36px 26px; }
  }
  @media (max-width: 520px) {
    .header-search { display: none; }
    .article-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 24px; }
    .section-head h2 { font-size: 24px; }
  }