/* roulang page: index */
:root {
  --primary: #2B6CA3;
  --primary-dark: #1E5277;
  --primary-darker: #174A72;
  --light-blue: #EAF2F8;
  --bg: #F7F9FB;
  --card: #FFFFFF;
  --accent: #F5A623;
  --accent-hover: #FFB84A;
  --accent-active: #D48A16;
  --text: #1A2D3A;
  --text-secondary: #5B6B7C;
  --text-muted: #8A97A5;
  --border: #E2E8F0;
  --success: #2EA86B;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 12px rgba(30,90,138,0.08);
  --shadow-hover: 0 8px 24px rgba(30,90,138,0.14);
  --shadow-nav: 0 2px 12px rgba(30,90,138,0.06);
  --transition: all .3s ease;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(43,108,163,.35); outline-offset: 2px; border-radius: 6px; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; border: none; cursor: pointer; border-radius: var(--radius-sm); padding: 12px 28px; font-size: 16px; font-weight: 600; transition: var(--transition); }
.btn i { margin-left: 8px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(27,74,115,.25); }
.btn-primary:active { background: var(--primary-darker); transform: translateY(0); }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: rgba(43,108,163,.06); }
.btn-outline:active { background: rgba(43,108,163,.12); }
.btn-cta { background: var(--accent); color: #fff; padding: 16px 36px; font-size: 18px; border-radius: var(--radius-sm); }
.btn-cta:hover { background: var(--accent-hover); box-shadow: 0 6px 20px rgba(245,166,35,.4); transform: translateY(-2px); }
.btn-cta:active { background: var(--accent-active); }
.btn-link { display: inline-flex; align-items: center; gap: 4px; color: var(--primary); font-weight: 600; font-size: 14px; background: none; border: none; cursor: pointer; transition: var(--transition); }
.btn-link i { transition: transform .3s ease; }
.btn-link:hover i { transform: translateX(4px); }

/* ===== Badges ===== */
.badge { display: inline-block; padding: 3px 12px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; line-height: 1.6; }
.badge-accent { background: var(--accent); color: #fff; }
.badge-primary { background: rgba(43,108,163,.12); color: var(--primary); }
.badge-light { background: rgba(255,255,255,.18); color: #fff; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--border); transition: box-shadow .3s ease; }
.site-header.scrolled { box-shadow: var(--shadow-nav); }
.header-inner { display: flex; align-items: center; height: 72px; gap: 20px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 700; }
.logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: .5px; }
.logo-text span { color: var(--primary); }
.search-box { flex: 1; max-width: 46%; margin: 0 auto; position: relative; }
.search-box form { display: flex; align-items: center; height: 48px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 0 16px; transition: var(--transition); }
.search-box form:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,108,163,.15); background: #fff; }
.search-box .icon { color: var(--text-muted); font-size: 15px; margin-right: 10px; flex-shrink: 0; }
.search-box input { flex: 1; border: none; background: transparent; outline: none; color: var(--text); font-size: 14px; height: 100%; }
.search-box input::placeholder { color: var(--text-muted); }
.search-box .kbd { font-size: 11px; color: var(--text-muted); border: 1px solid var(--border); border-radius: 4px; padding: 2px 8px; background: #fff; flex-shrink: 0; }
.header-right { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 0; }
.main-nav a { padding: 6px 12px; font-size: 15px; font-weight: 500; color: var(--text-secondary); position: relative; white-space: nowrap; }
.main-nav a::after { content: ''; position: absolute; left: 12px; right: 12px; bottom: 0; height: 2px; background: var(--primary); border-radius: 2px; transform: scaleX(0); transition: transform .3s ease; }
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after { transform: scaleX(1); }
.header-cta { margin-left: 8px; white-space: nowrap; }
.search-toggle, .menu-toggle { display: none; background: none; border: none; cursor: pointer; width: 40px; height: 40px; border-radius: 8px; align-items: center; justify-content: center; font-size: 18px; color: var(--text); }
.search-toggle:hover, .menu-toggle:hover { background: var(--bg); }

/* Mobile search layer */
.mobile-search { display: none; background: #fff; padding: 12px 24px; border-bottom: 1px solid var(--border); }
.mobile-search.open { display: block; }
.mobile-search form { display: flex; align-items: center; height: 44px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 0 14px; }
.mobile-search .icon { color: var(--text-muted); margin-right: 8px; }
.mobile-search input { flex: 1; border: none; background: transparent; outline: none; font-size: 14px; }
.mobile-search button { background: none; border: none; color: var(--primary); font-size: 16px; cursor: pointer; }

/* Mobile nav */
.mobile-nav { display: none; background: #fff; padding: 12px 24px 20px; border-bottom: 1px solid var(--border); flex-direction: column; gap: 4px; }
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: 12px 16px; border-radius: 8px; font-size: 15px; font-weight: 500; color: var(--text); }
.mobile-nav a:hover { background: var(--bg); color: var(--primary); }
.mobile-nav a.active { color: var(--primary); font-weight: 600; background: rgba(43,108,163,.06); }
.mobile-nav .btn { margin-top: 12px; justify-content: center; }

/* ===== Hero ===== */
.hero { background: linear-gradient(135deg, var(--bg) 0%, var(--light-blue) 100%); padding: 100px 0; overflow: hidden; }
.hero-grid { display: flex; align-items: center; gap: 40px; }
.hero-content { flex: 1.1; }
.hero-content h1 { font-size: 40px; font-weight: 700; line-height: 1.25; color: var(--text); margin-bottom: 20px; }
.hero-content h1 .highlight { color: var(--primary); }
.hero-content p.lead { font-size: 18px; color: var(--text-secondary); line-height: 1.7; max-width: 560px; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { flex: 0 0 45%; position: relative; }
.hero-image img { border-radius: var(--radius); box-shadow: 0 16px 48px rgba(30,90,138,.18); }
.hero-image::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--bg) 0%, rgba(247,249,251,0) 100%); z-index: 1; pointer-events: none; border-radius: var(--radius); }

/* ===== Stats Bar ===== */
.stats-bar { background: var(--light-blue); border-bottom: 1px solid var(--border); padding: 32px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item h3 { font-size: 38px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-item p { font-size: 14px; color: var(--text-muted); margin-top: 4px; }
.stat-icon { font-size: 22px; color: var(--primary); margin-bottom: 8px; opacity: .6; }

/* ===== Section commons ===== */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 30px; font-weight: 700; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-header p { font-size: 15px; color: var(--text-secondary); max-width: 640px; margin: 0 auto; }
.section-divider { border-bottom: 1px solid var(--border); }

/* ===== Steps ===== */
.steps { background: #fff; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
.step-item { padding: 32px 24px; border-radius: var(--radius); background: transparent; transition: var(--transition); position: relative; }
.step-item:hover { box-shadow: var(--shadow-hover); background: #fff; transform: translateY(-4px); }
.step-number { width: 48px; height: 48px; border-radius: 50%; background: rgba(43,108,163,.1); color: var(--primary); font-size: 22px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; border: 2px solid rgba(43,108,163,.2); }
.step-item h3 { font-size: 20px; font-weight: 600; margin-bottom: 12px; }
.step-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.steps-grid::before { content: ''; position: absolute; top: 53px; left: 16%; right: 16%; height: 2px; border-top: 2px dashed rgba(43,108,163,.25); z-index: 0; }
.step-item { z-index: 1; background: var(--bg); }

/* ===== Cases ===== */
.cases { background: var(--bg); }
.cases-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.case-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition); }
.case-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: transparent; }
.case-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.case-card:hover .case-cover img { transform: scale(1.04); }
.case-cover .badge { position: absolute; top: 16px; left: 16px; z-index: 2; }
.case-body { padding: 24px 28px 28px; }
.case-body h3 { font-size: 22px; font-weight: 600; margin-bottom: 10px; }
.case-body p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.65; }
.case-data { font-size: 14px; font-weight: 600; color: var(--primary); display: flex; align-items: center; gap: 6px; margin-bottom: 16px; }
.case-data i { color: var(--accent); }
.case-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; }
.case-link i { transition: transform .3s ease; }
.case-link:hover i { transform: translateX(4px); }

/* ===== News / CMS List ===== */
.news { background: #fff; }
.news-panel { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow-card); }
.news-item { display: flex; align-items: flex-start; gap: 24px; padding: 24px 28px; border-bottom: 1px solid var(--border); transition: background .2s ease; position: relative; }
.news-item:last-child { border-bottom: none; }
.news-item::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--primary); opacity: 0; transition: opacity .2s ease; }
.news-item:hover { background: var(--bg); }
.news-item:hover::before { opacity: 1; }
.news-meta { flex: 0 0 140px; display: flex; flex-direction: column; gap: 8px; }
.news-date { font-size: 14px; color: var(--text-muted); }
.news-content { flex: 1; }
.news-content h3 { font-size: 17px; font-weight: 600; line-height: 1.45; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-content h3 a { color: var(--text); }
.news-content h3 a:hover { color: var(--primary); }
.news-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.read-more { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 4px; }
.read-more i { transition: transform .3s ease; }
.read-more:hover i { transform: translateX(4px); }
.news-empty { padding: 80px 24px; text-align: center; color: var(--text-muted); }
.news-empty i { font-size: 40px; margin-bottom: 16px; display: block; color: var(--border); }
.news-empty p { font-size: 15px; }
.view-all { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.section-header { position: relative; }
.section-header .view-all { position: absolute; right: 0; top: 50%; transform: translateY(-50%); }
.section-header.section-header-flex { display: flex; align-items: center; justify-content: space-between; text-align: left; margin-bottom: 32px; }
.section-header-flex h2 { margin-bottom: 0; }

/* ===== FAQ ===== */
.faq { background: var(--bg); }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion { background: transparent; border: none; }
.accordion-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.accordion-item:hover { border-color: rgba(43,108,163,.3); }
.accordion-title { padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text); position: relative; padding-right: 56px; display: block; background: transparent; border: none; }
.accordion-title:hover { background: var(--bg); }
.accordion-title::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border: 1px solid var(--primary); border-radius: 50%; color: var(--primary); font-size: 18px; display: flex; align-items: center; justify-content: center; transition: transform .3s ease, background .3s ease; }
.accordion-item.is-active .accordion-title::after { transform: translateY(-50%) rotate(45deg); background: var(--primary); color: #fff; border-color: var(--primary); }
.accordion-content { padding: 0 24px 20px; font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

/* ===== CTA ===== */
.cta { background: var(--primary-dark); padding: 80px 0; position: relative; overflow: hidden; }
.cta::before { content: ''; position: absolute; top: 50%; left: 50%; width: 600px; height: 600px; border: 2px dashed rgba(255,255,255,.08); border-radius: 50%; transform: translate(-50%, -50%); pointer-events: none; }
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-inner h2 { font-size: 28px; color: #fff; font-weight: 700; margin-bottom: 12px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,.8); max-width: 560px; margin: 0 auto 32px; }
.cta-inner .btn-cta { display: inline-flex; }

/* ===== Footer ===== */
.site-footer { background: #152A3A; padding: 64px 0 32px; color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text span { color: var(--accent); }
.footer-brand .logo-icon { background: var(--accent); color: var(--primary-dark); }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.7); max-width: 300px; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,.65); }
.footer-col a:hover { color: var(--accent-hover); }
.footer-col p { font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.footer-col i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,.5); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .search-box { max-width: 34%; }
  .header-right { gap: 10px; }
  .main-nav a { padding: 6px 8px; font-size: 14px; }
  .steps-grid { gap: 16px; }
  .section { padding: 64px 0; }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .search-box { display: none; }
  .search-toggle { display: inline-flex; }
  .main-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .hero { padding: 60px 0; }
  .hero-grid { flex-direction: column; }
  .hero-content h1 { font-size: 30px; }
  .hero-content p.lead { font-size: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .steps-grid { grid-template-columns: 1fr; gap: 8px; }
  .steps-grid::before { display: none; }
  .step-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; }
  .step-item:hover { transform: none; }
  .cases-grid { grid-template-columns: 1fr; gap: 20px; }
  .news-item { flex-direction: column; gap: 12px; padding: 20px; }
  .news-meta { flex: none; flex-direction: row; align-items: center; gap: 12px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 24px; }
  .cta { padding: 56px 0; }
  .cta-inner h2 { font-size: 24px; }
  .cta-inner .btn-cta { width: 100%; max-width: 320px; }
  .section-header .view-all { position: static; transform: none; margin-top: 8px; }
  .section-header-flex { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .header-inner { gap: 8px; }
  .logo-text { font-size: 17px; }
  .hero-btns .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-content h1 { font-size: 26px; }
}

/* roulang page: category1 */
:root {
      --primary: #2B6CA3;
      --primary-dark: #1E5277;
      --primary-active: #174A72;
      --light-blue: #EAF2F8;
      --page-bg: #F7F9FB;
      --card-bg: #FFFFFF;
      --cta-color: #F5A623;
      --cta-hover: #FFB84A;
      --cta-active: #D48A16;
      --text-main: #1A2D3A;
      --text-sub: #5B6B7C;
      --text-helper: #8A97A5;
      --border-color: #E2E8F0;
      --success: #2EA86B;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-pill: 999px;
      --shadow-card: 0 2px 12px rgba(30, 90, 138, 0.08);
      --shadow-hover: 0 8px 24px rgba(30, 90, 138, 0.14);
      --nav-shadow: 0 2px 12px rgba(30, 90, 138, 0.06);
      --transition: all 0.3s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
      background: var(--page-bg);
      color: var(--text-main);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: 80px 0;
    }

    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-head p {
      font-size: 16px;
      color: var(--text-sub);
      max-width: 560px;
      margin: 0 auto;
    }

    .badge-amber {
      display: inline-block;
      background: var(--cta-color);
      color: #fff;
      font-size: 13px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      letter-spacing: 0.5px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 12px 28px;
      cursor: pointer;
      transition: var(--transition);
      line-height: 1.4;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card);
    }

    .btn-primary:active {
      background: var(--primary-active);
      transform: translateY(0);
    }

    .btn-outline {
      background: #fff;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-outline:hover {
      background: rgba(43, 108, 163, 0.06);
      border-color: var(--primary);
    }

    .btn-outline:active {
      background: rgba(43, 108, 163, 0.12);
    }

    .btn-cta {
      background: var(--cta-color);
      color: #fff;
      font-size: 18px;
      font-weight: 600;
      padding: 16px 36px;
      border-radius: var(--radius-btn);
      box-shadow: 0 4px 14px rgba(245, 166, 35, 0.25);
    }

    .btn-cta:hover {
      background: var(--cta-hover);
      box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
      transform: translateY(-2px);
    }

    .btn-cta:active {
      background: var(--cta-active);
      transform: translateY(0);
    }

    .btn:focus-visible {
      outline: 3px solid rgba(43, 108, 163, 0.35);
      outline-offset: 2px;
    }

    /* ===== Header ===== */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
      transition: box-shadow 0.3s ease;
    }

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

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

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

    .logo-icon {
      width: 36px;
      height: 36px;
      background: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 16px;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.2;
      letter-spacing: 0.5px;
    }

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

    .header-search {
      flex: 1;
      max-width: 460px;
      margin: 0 auto;
    }

    .nav-search-form {
      position: relative;
      display: flex;
      align-items: center;
      height: 48px;
      background: var(--page-bg);
      border: 1px solid var(--border-color);
      border-radius: 24px;
      padding: 0 8px 0 18px;
      transition: var(--transition);
    }

    .nav-search-form:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(43, 108, 163, 0.15);
      background: #fff;
    }

    .search-icon {
      width: 16px;
      height: 16px;
      color: var(--text-helper);
      flex-shrink: 0;
    }

    .nav-search-form input {
      flex: 1;
      height: 100%;
      background: transparent;
      border: none;
      font-size: 15px;
      color: var(--text-main);
      padding: 0 12px;
      min-width: 0;
    }

    .nav-search-form input::placeholder {
      color: var(--text-helper);
    }

    .search-submit {
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 8px 18px;
      border-radius: var(--radius-pill);
      cursor: pointer;
      transition: var(--transition);
      flex-shrink: 0;
    }

    .search-submit:hover {
      background: var(--primary-dark);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-shrink: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-sub);
      position: relative;
      padding: 6px 0;
      transition: var(--transition);
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: var(--transition);
    }

    .main-nav a:hover {
      color: var(--primary);
    }

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

    .main-nav a.active {
      color: var(--primary);
      font-weight: 600;
    }

    .main-nav a.active::after {
      width: 100%;
    }

    .nav-cta {
      font-size: 14px;
      padding: 9px 22px;
    }

    .hamburger {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      color: var(--text-main);
      font-size: 18px;
      cursor: pointer;
      background: #fff;
      transition: var(--transition);
    }

    .hamburger:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .mobile-menu {
      display: none;
      background: #fff;
      border-bottom: 1px solid var(--border-color);
      padding: 16px 24px;
      box-shadow: var(--nav-shadow);
    }

    .mobile-menu.open {
      display: block;
    }

    .mobile-menu a {
      display: block;
      padding: 12px 0;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-sub);
      border-bottom: 1px solid var(--border-color);
    }

    .mobile-menu a:last-of-type {
      border-bottom: none;
    }

    .mobile-menu a.active {
      color: var(--primary);
      font-weight: 600;
    }

    .mobile-menu .btn {
      margin-top: 14px;
      width: 100%;
    }

    /* ===== Cat Hero ===== */
    .cat-hero {
      background: linear-gradient(135deg, var(--light-blue) 0%, #EAF2F8 60%, #F7F9FB 100%);
      padding: 72px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      top: 0;
      right: 0;
      width: 50%;
      height: 100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.16;
      -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 100%);
      mask-image: linear-gradient(90deg, transparent 0%, #000 100%);
      pointer-events: none;
    }

    .cat-hero-inner {
      position: relative;
      z-index: 1;
    }

    .cat-hero-inner h1 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .cat-hero-inner p {
      font-size: 16px;
      color: var(--text-sub);
      max-width: 600px;
      margin: 0;
    }

    .cat-hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 20px;
    }

    .cat-hero-meta span {
      font-size: 13px;
      color: var(--text-helper);
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid var(--border-color);
      padding: 5px 14px;
      border-radius: var(--radius-pill);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

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

    /* ===== Feature Blocks ===== */
    .feature-blocks {
      background: #fff;
    }

    .feature-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      margin-bottom: 64px;
    }

    .feature-block:last-child {
      margin-bottom: 0;
    }

    .feature-block.reverse .feature-media {
      order: 2;
    }

    .feature-block.reverse .feature-text {
      order: 1;
    }

    .feature-media {
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      border: 1px solid var(--border-color);
      line-height: 0;
    }

    .feature-media:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .feature-media img {
      width: 100%;
      height: 340px;
      object-fit: cover;
      border-radius: var(--radius-card);
    }

    .feature-text {
      padding: 8px 0;
    }

    .feature-text .badge-amber {
      margin-bottom: 16px;
    }

    .feature-text h3 {
      font-size: 24px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.4;
    }

    .feature-text p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 18px;
    }

    .feature-points {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .feature-points li {
      font-size: 14px;
      color: var(--text-sub);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .feature-points li i {
      color: var(--success);
      font-size: 14px;
      flex-shrink: 0;
    }

    /* ===== Stats ===== */
    .stats-section {
      background: var(--light-blue);
      padding: 60px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

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

    .stat-item {
      padding: 16px 8px;
    }

    .stat-num {
      font-size: 40px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 8px;
    }

    .stat-num.amber {
      color: var(--cta-color);
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-sub);
    }

    /* ===== Scenarios ===== */
    .scenarios {
      background: var(--page-bg);
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .scenario-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 32px 28px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .scenario-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
      opacity: 0;
      transition: var(--transition);
    }

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

    .scenario-card:hover::before {
      opacity: 1;
    }

    .scenario-icon {
      width: 52px;
      height: 52px;
      background: var(--light-blue);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      margin-bottom: 20px;
      transition: var(--transition);
    }

    .scenario-card:hover .scenario-icon {
      background: var(--primary);
      color: #fff;
    }

    .scenario-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scenario-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin: 0;
    }

    /* ===== Process ===== */
    .process {
      background: #fff;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      position: relative;
    }

    .process-steps::before {
      content: "";
      position: absolute;
      top: 28px;
      left: 60px;
      right: 60px;
      height: 2px;
      background: rgba(43, 108, 163, 0.2);
      border-radius: 2px;
    }

    .process-step {
      text-align: center;
      position: relative;
      z-index: 1;
      padding: 0 8px;
    }

    .step-num {
      width: 56px;
      height: 56px;
      background: var(--primary);
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 0 0 6px rgba(43, 108, 163, 0.12);
      transition: var(--transition);
    }

    .process-step:hover .step-num {
      background: var(--cta-color);
      box-shadow: 0 0 0 6px rgba(245, 166, 35, 0.12);
      transform: scale(1.06);
    }

    .process-step h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .process-step p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
      margin: 0;
      max-width: 220px;
      margin-left: auto;
      margin-right: auto;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--page-bg);
    }

    .faq-wrap {
      max-width: 800px;
      margin: 0 auto;
    }

    .accordion {
      background: transparent;
      border: none;
      border-radius: 0;
      margin: 0;
    }

    .accordion .accordion-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }

    .accordion .accordion-item.is-active {
      border-color: var(--primary);
      box-shadow: var(--shadow-card);
    }

    .accordion .accordion-title {
      background: #fff;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      padding: 20px 56px 20px 24px;
      border-bottom: 1px solid transparent;
      position: relative;
      min-height: 0;
    }

    .accordion .accordion-title:hover {
      background: var(--page-bg);
    }

    .accordion .accordion-title::before,
    .accordion .accordion-title::after {
      content: "";
      position: absolute;
      right: 24px;
      top: 50%;
      width: 16px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: var(--transition);
      transform: translateY(-50%);
    }

    .accordion .accordion-title::after {
      transform: translateY(-50%) rotate(90deg);
    }

    .accordion .accordion-item.is-active > .accordion-title::after {
      transform: translateY(-50%) rotate(0deg);
      opacity: 0.5;
    }

    .accordion .accordion-content {
      background: #fff;
      border: none;
      padding: 0 24px 20px;
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.7;
      border-radius: 0;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--primary-dark);
      padding: 72px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      top: -40px;
      right: -40px;
      width: 200px;
      height: 200px;
      border: 2px solid rgba(255, 255, 255, 0.08);
      border-radius: 50%;
    }

    .cta-section::after {
      content: "";
      position: absolute;
      bottom: -60px;
      left: -60px;
      width: 240px;
      height: 240px;
      border: 2px dashed rgba(255, 255, 255, 0.06);
      border-radius: 50%;
    }

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

    .cta-inner h2 {
      font-size: 28px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .cta-inner p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 32px;
      max-width: 520px;
      margin-left: auto;
      margin-right: auto;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #152A3A;
      padding: 64px 0 0;
      color: rgba(255, 255, 255, 0.7);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
    }

    .footer-brand .logo {
      margin-bottom: 16px;
    }

    .footer-brand .logo-icon {
      background: var(--primary);
    }

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

    .footer-brand .logo-text span {
      color: var(--cta-color);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.7);
      max-width: 320px;
      margin: 0;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      transition: var(--transition);
    }

    .footer-col ul li a:hover {
      color: var(--cta-color);
      padding-left: 4px;
    }

    .footer-col p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-col p i {
      width: 18px;
      text-align: center;
      color: var(--cta-color);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 24px 0 28px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
    }

    /* ===== Responsive ===== */
    @media screen and (max-width: 1024px) {
      .header-search {
        max-width: 320px;
      }

      .main-nav {
        gap: 16px;
      }

      .main-nav a {
        font-size: 14px;
      }

      .nav-cta {
        padding: 8px 16px;
        font-size: 13px;
      }

      .process-steps {
        gap: 20px;
      }

      .process-steps::before {
        left: 40px;
        right: 40px;
      }
    }

    @media screen and (max-width: 768px) {
      .section {
        padding: 56px 0;
      }

      .header-inner {
        height: 64px;
        gap: 12px;
      }

      .header-search {
        display: none;
      }

      .main-nav {
        display: none;
      }

      .nav-cta {
        display: none;
      }

      .hamburger {
        display: flex;
      }

      .cat-hero {
        padding: 48px 0;
      }

      .cat-hero::before {
        width: 100%;
        opacity: 0.1;
      }

      .cat-hero-inner h1 {
        font-size: 26px;
      }

      .feature-block,
      .feature-block.reverse {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .feature-block.reverse .feature-media {
        order: 1;
      }

      .feature-block.reverse .feature-text {
        order: 2;
      }

      .feature-media img {
        height: 240px;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }

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

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

      .process-steps {
        grid-template-columns: 1fr 1fr;
        gap: 32px 20px;
      }

      .process-steps::before {
        display: none;
      }

      .process-step p {
        max-width: 100%;
      }

      .cta-section {
        padding: 56px 0;
      }

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

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

      .section {
        padding: 48px 0;
      }

      .section-head h2 {
        font-size: 24px;
      }

      .section-head {
        margin-bottom: 32px;
      }

      .header-inner {
        height: 60px;
      }

      .logo-text {
        font-size: 17px;
      }

      .logo-icon {
        width: 30px;
        height: 30px;
        font-size: 13px;
      }

      .cat-hero {
        padding: 40px 0;
      }

      .cat-hero-inner h1 {
        font-size: 24px;
      }

      .cat-hero-inner p {
        font-size: 14px;
      }

      .cat-hero-meta {
        gap: 10px;
      }

      .cat-hero-meta span {
        font-size: 12px;
        padding: 4px 10px;
      }

      .feature-media img {
        height: 200px;
      }

      .feature-text h3 {
        font-size: 20px;
      }

      .feature-text p {
        font-size: 14px;
      }

      .stats-grid {
        gap: 16px;
      }

      .stat-num {
        font-size: 28px;
      }

      .stat-label {
        font-size: 13px;
      }

      .scenario-card {
        padding: 24px 20px;
      }

      .process-steps {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .process-step {
        display: flex;
        align-items: flex-start;
        text-align: left;
        gap: 16px;
        padding: 0;
      }

      .step-num {
        margin: 0;
        flex-shrink: 0;
        width: 44px;
        height: 44px;
        font-size: 16px;
      }

      .process-step h3 {
        font-size: 15px;
        margin-bottom: 4px;
      }

      .process-step p {
        font-size: 13px;
      }

      .accordion .accordion-title {
        font-size: 14px;
        padding: 16px 48px 16px 16px;
      }

      .accordion .accordion-content {
        padding: 0 16px 16px;
        font-size: 14px;
      }

      .cta-inner h2 {
        font-size: 22px;
      }

      .cta-inner p {
        font-size: 14px;
      }

      .btn-cta {
        width: 100%;
        max-width: 280px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2B6CA3;
            --primary-dark: #1E5277;
            --primary-darker: #174A72;
            --amber: #F5A623;
            --amber-light: #FFB84A;
            --amber-dark: #D48A16;
            --bg-light: #F7F9FB;
            --bg-blue: #EAF2F8;
            --card-bg: #FFFFFF;
            --text-main: #1A2D3A;
            --text-sub: #5B6B7C;
            --text-muted: #8A97A5;
            --border: #E2E8F0;
            --success: #2EA86B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-full: 999px;
            --shadow-card: 0 2px 12px rgba(30, 90, 138, 0.08);
            --shadow-hover: 0 8px 24px rgba(30, 90, 138, 0.14);
            --transition: all .3s ease;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮组件 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            border-radius: var(--radius-btn);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            font-size: 16px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(43, 108, 163, 0.25);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 11px 28px;
            font-size: 16px;
        }
        .btn-outline:hover {
            background: rgba(43, 108, 163, 0.06);
        }
        .btn-amber {
            background: var(--amber);
            color: #fff;
            padding: 16px 36px;
            font-size: 18px;
            border-radius: var(--radius-btn);
            box-shadow: 0 4px 12px rgba(245, 166, 35, 0.25);
        }
        .btn-amber:hover {
            background: var(--amber-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
        }
        .btn-cta {
            background: var(--primary);
            color: #fff;
            padding: 0 20px;
            height: 40px;
            font-size: 14px;
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: box-shadow .3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(30, 90, 138, 0.06);
        }
        .header-grid {
            display: grid;
            grid-template-columns: auto 1fr auto;
            align-items: center;
            gap: 20px;
            height: 72px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 2px 8px rgba(43, 108, 163, 0.3);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.2px;
        }
        .logo-text span {
            color: var(--primary);
        }
        .header-search {
            max-width: 480px;
            width: 100%;
            margin: 0 auto;
        }
        .search-box {
            height: 48px;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 24px;
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 10px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 163, 0.15);
            background: #fff;
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            font-size: 14px;
            color: var(--text-main);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box .search-hint {
            font-size: 12px;
            color: var(--text-muted);
            background: #fff;
            border: 1px solid var(--border);
            padding: 2px 8px;
            border-radius: 4px;
            white-space: nowrap;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            gap: 18px;
            align-items: center;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 4px 2px;
            position: relative;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width .3s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 10px;
            font-size: 18px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--bg-blue) 0%, #dcebf5 100%);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(43, 108, 163, 0.06);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            right: 120px;
            bottom: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.1);
        }
        .category-hero__inner {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            align-items: center;
            gap: 48px;
            position: relative;
            z-index: 2;
        }
        .category-hero .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(43, 108, 163, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.2;
        }
        .category-hero .hero-desc {
            font-size: 17px;
            color: var(--text-sub);
            max-width: 460px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .category-hero .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .category-hero__img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .category-hero__img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* ===== 可信度指标条 ===== */
        .category-stats {
            background: var(--bg-blue);
            border-top: 1px solid rgba(43, 108, 163, 0.1);
            border-bottom: 1px solid rgba(43, 108, 163, 0.1);
            padding: 40px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-num span {
            font-size: 22px;
            margin-left: 2px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 6px;
        }

        /* ===== 板块通用 ===== */
        .section-pad {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            background: rgba(43, 108, 163, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
        }

        /* ===== 核心卖点三卡片 ===== */
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(43, 108, 163, 0.25);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== 图文交错 ===== */
        .category-info {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .info-row {
            margin-bottom: 64px;
        }
        .info-row:last-child {
            margin-bottom: 0;
        }
        .info-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .info-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .info-img:hover img {
            transform: scale(1.02);
        }
        .info-content {
            padding: 20px 0;
        }
        .info-content .info-tag {
            display: inline-block;
            background: rgba(245, 166, 35, 0.12);
            color: var(--amber-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
        }
        .info-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .info-content p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .info-points {
            margin-top: 16px;
        }
        .info-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 10px;
        }
        .info-points li i {
            color: var(--success);
            font-size: 14px;
            margin-top: 5px;
        }

        /* ===== 适用场景 ===== */
        .category-scenarios {
            background: var(--bg-light);
        }
        .scenario-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .scenario-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: var(--bg-blue);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== 流程 ===== */
        .category-process {
            background: var(--bg-blue);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 10%;
            right: 10%;
            height: 2px;
            border-top: 2px dashed rgba(43, 108, 163, 0.2);
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 2;
            background: var(--bg-blue);
        }
        .step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 12px rgba(43, 108, 163, 0.3);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            max-width: 200px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .category-faq {
            background: #fff;
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion {
            background: transparent;
            border: none;
        }
        .accordion-item {
            border-bottom: 1px solid var(--border);
        }
        .accordion-item:first-child {
            border-top: 1px solid var(--border);
        }
        .accordion-title {
            background: transparent !important;
            border: none !important;
            color: var(--text-main) !important;
            font-size: 16px !important;
            font-weight: 600 !important;
            padding: 22px 44px 22px 0 !important;
            line-height: 1.5;
            position: relative;
            transition: background .3s ease;
        }
        .accordion-title:hover,
        .accordion-title:focus {
            background: var(--bg-light) !important;
            color: var(--primary) !important;
        }
        .accordion-title::before {
            content: '+';
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 400;
            color: var(--primary);
            transition: var(--transition);
            background: #fff;
        }
        .accordion-item.is-active > .accordion-title::before {
            transform: translateY(-50%) rotate(45deg);
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .accordion-content {
            background: transparent !important;
            border: none !important;
            color: var(--text-sub) !important;
            font-size: 15px !important;
            line-height: 1.8 !important;
            padding: 0 24px 20px !important;
        }

        /* ===== CTA 区块 ===== */
        .category-cta {
            background: var(--primary-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .category-cta::before {
            content: '';
            position: absolute;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 2px dashed rgba(255, 255, 255, 0.08);
            left: -40px;
            bottom: -80px;
        }
        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .cta-inner a.btn-amber {
            min-width: 180px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #152A3A;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-grid .logo-text {
            color: #fff;
        }
        .footer-grid .logo-text span {
            color: var(--amber);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-col ul a:hover {
            color: var(--amber);
        }
        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col p i {
            color: var(--amber);
            font-size: 13px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-grid {
                grid-template-columns: auto auto;
                justify-content: space-between;
                height: auto;
                padding: 12px 0;
                row-gap: 12px;
            }
            .header-search {
                grid-column: 1 / -1;
                order: 3;
                max-width: 100%;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(30, 90, 138, 0.08);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 0;
                width: 100%;
                border-bottom: 1px solid var(--border);
                font-size: 15px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a::after {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .category-hero__inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-hero__img img {
                height: 220px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 28px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 36px;
            }
            .process-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                row-gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .header-grid {
                padding: 10px 0;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
            }
            .search-box {
                height: 44px;
            }
            .header-actions .btn-cta {
                display: none;
            }
            .category-hero {
                padding: 48px 0 48px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 15px;
            }
            .category-hero__img img {
                height: 180px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .info-row {
                margin-bottom: 40px;
            }
            .info-img img {
                height: 200px;
            }
            .info-content {
                padding: 16px 0 0;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .process-step {
                background: transparent;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .stat-item .stat-num {
                font-size: 30px;
            }
            .btn-amber {
                width: 100%;
                min-width: 0;
            }
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .category-cta {
                padding: 56px 0;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .accordion-title {
                font-size: 15px !important;
                padding: 20px 40px 20px 0 !important;
            }
            .accordion-content {
                font-size: 14px !important;
                padding: 0 16px 16px !important;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .header-actions .btn-cta {
                display: none;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #2B6CA3;
  --primary-dark: #1E5277;
  --primary-deeper: #174A72;
  --accent: #F5A623;
  --accent-hover: #FFB84A;
  --accent-active: #D48A16;
  --bg-light: #F7F9FB;
  --bg-blue: #EAF2F8;
  --white: #FFFFFF;
  --text-main: #1A2D3A;
  --text-secondary: #5B6B7C;
  --text-muted: #8A97A5;
  --border: #E2E8F0;
  --success: #2EA86B;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 12px rgba(30,90,138,0.08);
  --shadow-card-hover: 0 8px 24px rgba(30,90,138,0.14);
  --shadow-nav: 0 2px 12px rgba(30,90,138,0.06);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-secondary);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--primary-dark);
}

ul, ol, p, h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
}

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

.container, .grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
}

.section-header .section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 12px;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 0;
}

.section-title.center {
  text-align: center;
}

.section-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 12px;
  text-align: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all .25s ease;
  white-space: nowrap;
}

.btn i {
  font-size: 14px;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(30,90,138,0.2);
}

.btn-primary:active {
  background: var(--primary-deeper);
  border-color: var(--primary-deeper);
  transform: translateY(0);
}

.btn-outline {
  background: var(--white);
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: rgba(43,108,163,0.06);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-outline:active {
  background: rgba(43,108,163,0.12);
  transform: translateY(0);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
  font-size: 18px;
  padding: 16px 36px;
}

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,166,35,0.4);
}

.btn-accent:active {
  background: var(--accent-active);
  border-color: var(--accent-active);
  transform: translateY(0);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 18px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s ease;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
  max-width: 1280px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-main);
  text-decoration: none;
}

.logo:hover {
  color: var(--text-main);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

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

.header-search {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 1 430px;
  width: 44%;
  height: 46px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 8px 0 18px;
  transition: border-color .25s ease, box-shadow .25s ease;
  cursor: text;
}

.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43,108,163,0.15);
  background: var(--white);
}

.header-search .search-icon {
  color: var(--text-muted);
  font-size: 14px;
  margin-right: 10px;
}

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

.header-search input::placeholder {
  color: var(--text-muted);
}

.search-kbd {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 7px;
  white-space: nowrap;
  line-height: 1.4;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding-bottom: 4px;
  text-decoration: none;
  transition: color .2s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

.main-nav a:hover {
  color: var(--primary);
}

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

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.main-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-light);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 16px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle:hover {
  background: var(--border);
}

.header-cta {
  display: inline-flex;
}

.mobile-search-layer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  box-shadow: var(--shadow-nav);
  z-index: 90;
}

.mobile-search-layer.open {
  display: block;
}

.mobile-search-layer .mobile-search-box {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 8px 0 16px;
  height: 42px;
}

.mobile-search-layer .mobile-search-box i {
  color: var(--text-muted);
  margin-right: 10px;
  font-size: 14px;
}

.mobile-search-layer input {
  border: none;
  background: transparent;
  outline: none;
  flex: 1;
  font-size: 14px;
}

.mobile-search-layer input::placeholder {
  color: var(--text-muted);
}

/* Page Hero */
.page-hero {
  background: linear-gradient(rgba(234,242,248,0.86), rgba(247,249,251,0.94)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--border);
}

.page-hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.page-hero-content {
  flex: 1;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.hero-breadcrumb a {
  color: var(--text-muted);
}

.hero-breadcrumb a:hover {
  color: var(--primary);
}

.hero-breadcrumb .sep {
  opacity: .5;
}

.hero-breadcrumb .current {
  color: var(--text-secondary);
  font-weight: 500;
}

.page-hero h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 14px;
}

.page-hero h1 .highlight {
  color: var(--primary);
}

.page-hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.page-hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* Stats bar */
.stats-bar {
  background: var(--bg-blue);
  border-bottom: 1px solid var(--border);
  padding: 26px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 8px 12px;
}

.stat-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Image Text Modules */
.image-text-section {
  padding: 80px 0;
}

.image-text-section.alt-bg {
  background: var(--white);
}

.image-text-grid {
  display: flex;
  align-items: center;
  gap: 56px;
}

.image-text-grid.reverse {
  flex-direction: row-reverse;
}

.image-text-media {
  flex: 1 1 46%;
}

.image-text-media img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  object-fit: cover;
  aspect-ratio: 4/3;
}

.image-text-content {
  flex: 1 1 46%;
}

.image-text-content .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 10px;
}

.image-text-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.image-text-content .lead-text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.75;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.feature-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 16px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-list li:last-child {
  margin-bottom: 0;
}

.feature-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(43,108,163,0.1);
  color: var(--primary);
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Steps */
.steps-section {
  background: var(--bg-light);
  padding: 80px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 8px;
}

.step-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  text-align: left;
  position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(43,108,163,0.1);
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

.step-arrow {
  position: absolute;
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  opacity: .25;
  font-size: 20px;
  z-index: 2;
}

/* Scenarios */
.scenarios-section {
  background: var(--white);
  padding: 80px 0;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.scenario-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

.scenario-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.scenario-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.scenario-card:hover .scenario-card-img img {
  transform: scale(1.03);
}

.scenario-card-body {
  padding: 24px 24px 28px;
}

.scenario-card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

.scenario-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* FAQ */
.faq-section {
  background: var(--bg-light);
  padding: 80px 0;
}

.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.faq-accordion .accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  margin: 0;
}

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

.faq-accordion .accordion-title {
  background: transparent;
  border: none;
  padding: 22px 52px 22px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  position: relative;
}

.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus {
  background: var(--white);
  color: var(--primary);
}

.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 16px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transform: translateY(-50%);
  transition: transform .3s ease, background .3s ease;
}

.faq-accordion .accordion-title::after {
  transform: translateY(-50%) rotate(90deg);
}

.faq-accordion .accordion-item.is-active .accordion-title::before {
  background: var(--primary);
}

.faq-accordion .accordion-item.is-active .accordion-title::after {
  transform: translateY(-50%) rotate(0deg);
  background: var(--primary);
}

.faq-accordion .accordion-content {
  background: transparent;
  border: none;
  padding: 0 36px 22px 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

.faq-accordion .accordion-content p:last-child {
  margin-bottom: 0;
}

/* CTA */
.cta-section {
  background: var(--primary-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border: 2px dashed rgba(255,255,255,0.08);
  border-radius: 50%;
  pointer-events: none;
}

.cta-section::after {
  content: "";
  position: absolute;
  left: -60px;
  bottom: -100px;
  width: 220px;
  height: 220px;
  border: 2px dashed rgba(255,255,255,0.06);
  border-radius: 50%;
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  color: var(--white);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 14px;
}

.cta-content .cta-text {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.cta-content .btn-accent {
  min-width: 200px;
}

/* Footer */
.site-footer {
  background: #152A3A;
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 18px;
}

.footer-brand .logo-icon {
  background: var(--primary);
  color: var(--white);
}

.footer-brand .logo-text {
  color: var(--white);
}

.footer-brand .logo-text span {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 0;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 24px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: color .2s ease;
}

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

.footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

.footer-bottom a:hover {
  color: var(--accent);
}

/* Responsive */
@media screen and (max-width: 1024px) {
  .header-inner {
    gap: 12px;
  }

  .header-search {
    width: 34%;
  }

  .main-nav {
    gap: 18px;
  }

  .main-nav a {
    font-size: 14px;
  }

  .image-text-grid {
    gap: 32px;
  }

  .image-text-grid h2 {
    font-size: 24px;
  }

  .steps-grid {
    gap: 20px;
  }

  .step-arrow {
    display: none;
  }

  .scenarios-grid {
    gap: 20px;
  }

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

@media screen and (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

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

  .header-inner {
    height: 64px;
  }

  .header-search {
    display: none;
  }

  .search-mobile-btn {
    display: inline-flex;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-light);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 16px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
  }

  .search-mobile-btn:hover {
    background: var(--border);
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-nav);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 16px;
  }

  .main-nav.nav-open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 4px;
    font-size: 15px;
    border-bottom: 1px solid var(--border);
  }

  .main-nav a::after {
    display: none;
  }

  .main-nav a.active {
    color: var(--primary);
    font-weight: 600;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-num {
    font-size: 30px;
  }

  .image-text-grid {
    flex-direction: column !important;
    gap: 28px;
  }

  .image-text-media {
    flex: 1 1 auto;
    width: 100%;
  }

  .image-text-content {
    flex: 1 1 auto;
    width: 100%;
  }

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

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

  .cta-section {
    padding: 56px 0;
  }

  .cta-content h2 {
    font-size: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

@media screen and (max-width: 520px) {
  .container, .grid-container {
    padding: 0 18px;
  }

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

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .header-inner {
    height: 56px;
  }

  .page-hero {
    padding: 40px 0 36px;
  }

  .page-hero h1 {
    font-size: 25px;
  }

  .page-hero-sub {
    font-size: 14px;
  }

  .page-hero-actions .btn {
    width: 100%;
  }

  .stats-bar {
    padding: 20px 0;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

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

  .stat-label {
    font-size: 13px;
  }

  .image-text-section {
    padding: 48px 0;
  }

  .image-text-content h2 {
    font-size: 22px;
  }

  .steps-section {
    padding: 48px 0;
  }

  .step-card {
    padding: 28px 22px;
  }

  .scenarios-section {
    padding: 48px 0;
  }

  .faq-section {
    padding: 48px 0;
  }

  .faq-accordion .accordion-title {
    font-size: 15px;
    padding-right: 44px;
  }

  .faq-accordion .accordion-content {
    font-size: 14px;
  }

  .cta-section {
    padding: 48px 0;
  }

  .cta-content .btn-accent {
    width: 100%;
    min-width: 0;
  }
}