/* roulang page: index */
:root {
  --primary: #1B5F9C;
  --primary-dark: #0F3B66;
  --primary-darker: #0a2c4c;
  --primary-light: #EAF1F7;
  --primary-light-2: #dce8f2;
  --accent: #F2A93B;
  --accent-dark: #e08f1e;
  --bg: #F6F8FA;
  --bg-white: #FFFFFF;
  --text: #1E2A32;
  --text-secondary: #5A6B7B;
  --text-muted: #8B9AA9;
  --border: #DCE3EA;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --radius-badge: 6px;
  --shadow-card: 0 4px 12px rgba(15,59,102,0.06), 0 12px 28px rgba(15,59,102,0.08);
  --shadow-card-hover: 0 8px 20px rgba(15,59,102,0.10), 0 16px 36px rgba(15,59,102,0.12);
  --transition: 150ms ease;
  --container: 1200px;
  --section-gap: 96px;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size:16px; line-height:1.75; color:var(--text); background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
ul, ol { list-style:none; }
button { font-family:inherit; cursor:pointer; border:none; background:none; }
input, textarea { font-family:inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline:3px solid rgba(27,95,156,0.35); outline-offset:2px;
}
.container { max-width:var(--container); margin:0 auto; padding:0 24px; }
.site-header { position:fixed; top:0; left:0; right:0; z-index:999; background:#fff; border-bottom:1px solid var(--border); }
.header-wrap { display:flex; align-items:center; justify-content:space-between; height:64px; position:relative; }
.brand-logo { position:absolute; left:50%; transform:translateX(-50%); text-align:center; }
.brand-logo a { display:inline-flex; align-items:center; gap:8px; }
.logo-mark { width:32px; height:32px; background:var(--primary); border-radius:8px; display:inline-flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:15px; flex-shrink:0; }
.logo-text { font-size:20px; font-weight:700; color:var(--primary-dark); letter-spacing:0.5px; white-space:nowrap; }
.main-nav ul { display:flex; gap:8px; }
.main-nav a {
  display:inline-block; padding:8px 16px; font-size:15px; font-weight:500; color:var(--text-secondary);
  border-radius:8px; transition:color var(--transition), background var(--transition);
}
.main-nav a:hover { color:var(--primary); background:var(--primary-light); }
.main-nav a.active { color:var(--primary); background:var(--primary-light); font-weight:600; }
.nav-toggle { display:none; width:44px; height:44px; flex-direction:column; align-items:center; justify-content:center; gap:5px; border-radius:8px; }
.nav-toggle span { display:block; width:22px; height:2px; background:var(--text); border-radius:2px; transition:all var(--transition); }
.nav-toggle.active span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity:0; }
.nav-toggle.active span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }
.mobile-menu { display:none; position:fixed; top:64px; left:0; right:0; background:#fff; border-bottom:1px solid var(--border); box-shadow:0 12px 24px rgba(15,59,102,0.08); padding:16px 24px 24px; z-index:998; }
.mobile-menu.open { display:block; }
.mobile-menu ul li + li { margin-top:4px; }
.mobile-menu a { display:block; padding:12px 16px; border-radius:10px; font-size:16px; font-weight:500; color:var(--text); }
.mobile-menu a:hover, .mobile-menu a.active { background:var(--primary-light); color:var(--primary); }
.main {
  padding-top:64px;
}
/* Hero */
.hero { position:relative; background:var(--bg); overflow:hidden; }
.hero-bg { position:absolute; inset:0; background-image:url('/assets/images/backpic/back-1.png'); background-size:cover; background-position:center; opacity:0.18; }
.hero-bg::after { content:''; position:absolute; inset:0; background:linear-gradient(90deg, rgba(246,248,250,0.95) 0%, rgba(246,248,250,0.85) 50%, rgba(246,248,250,0.6) 100%); }
.hero-wrap { position:relative; display:grid; grid-template-columns:1.1fr 0.9fr; gap:64px; align-items:center; padding:104px 24px 88px; max-width:var(--container); margin:0 auto; }
.hero-copy { max-width:600px; }
.hero-eyebrow { display:inline-block; font-size:13px; font-weight:600; color:var(--primary); background:var(--primary-light); padding:6px 14px; border-radius:100px; margin-bottom:24px; letter-spacing:0.5px; }
.hero h1 { font-size:42px; line-height:1.3; font-weight:700; color:var(--primary-dark); margin-bottom:20px; }
.hero-subtitle { font-size:17px; line-height:1.8; color:var(--text-secondary); margin-bottom:32px; max-width:540px; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; margin-bottom:40px; }
.btn { display:inline-flex; align-items:center; justify-content:center; padding:12px 28px; font-size:15px; font-weight:600; border-radius:var(--radius-btn); transition:background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition); cursor:pointer; }
.btn-primary { background:var(--primary); color:#fff; box-shadow:0 4px 12px rgba(27,95,156,0.25); }
.btn-primary:hover { background:var(--primary-dark); transform:translateY(-1px); box-shadow:0 8px 20px rgba(27,95,156,0.3); }
.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:var(--primary-light); border-color:var(--primary-dark); color:var(--primary-dark); }
.btn-outline:active { background:var(--primary-light-2); }
.btn-accent { background:var(--accent); color:#fff; box-shadow:0 4px 12px rgba(242,169,59,0.3); }
.btn-accent:hover { background:var(--accent-dark); transform:translateY(-1px); }
.btn-accent:active { transform:translateY(0); }
.hero-trust { display:flex; gap:12px; flex-wrap:wrap; }
.trust-badge { display:inline-flex; align-items:center; gap:6px; font-size:13px; font-weight:500; color:var(--text-secondary); background:#fff; border:1px solid var(--border); border-radius:100px; padding:6px 16px; }
.trust-badge::before { content:''; width:6px; height:6px; border-radius:50%; background:var(--primary); }
.hero-visual { position:relative; }
.hero-visual-card { border-radius:20px; overflow:hidden; box-shadow:var(--shadow-card); background:#fff; }
.hero-visual-card img { width:100%; height:auto; aspect-ratio:4/3; object-fit:cover; }
.hero-visual-float { position:absolute; bottom:-24px; right:-16px; background:#fff; border-radius:14px; box-shadow:var(--shadow-card); padding:16px 20px; display:flex; align-items:center; gap:12px; }
.float-icon { width:36px; height:36px; background:var(--primary-light); border-radius:10px; display:flex; align-items:center; justify-content:center; color:var(--primary); }
.float-text strong { display:block; font-size:14px; color:var(--text); }
.float-text span { font-size:12px; color:var(--text-muted); }
/* Features */
.features { background:var(--bg-white); padding:var(--section-gap) 0; }
.features .container { max-width:var(--container); }
.section-head { text-align:center; max-width:680px; margin:0 auto 56px; }
.section-head .section-eyebrow { display:inline-block; font-size:13px; font-weight:600; color:var(--primary); background:var(--primary-light); padding:6px 14px; border-radius:100px; margin-bottom:16px; }
.section-head h2 { font-size:32px; font-weight:700; color:var(--primary-dark); line-height:1.4; }
.section-head p { font-size:16px; color:var(--text-secondary); margin-top:12px; }
.features-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.feature-card { background:#fff; border-radius:var(--radius-card); padding:36px 32px; border:1px solid var(--border); box-shadow:var(--shadow-card); transition:box-shadow var(--transition), transform var(--transition), border-color var(--transition); position:relative; }
.feature-card:hover { box-shadow:var(--shadow-card-hover); transform:translateY(-2px); border-color:var(--primary-light-2); }
.feature-card.accent-card { background:var(--primary-light); border-color:transparent; }
.feature-icon { width:52px; height:52px; border-radius:12px; background:var(--primary); display:flex; align-items:center; justify-content:center; margin-bottom:24px; color:#fff; }
.feature-card.accent-card .feature-icon { background:var(--primary); }
.feature-card h3 { font-size:20px; font-weight:600; color:var(--text); margin-bottom:12px; }
.feature-card p { font-size:15px; line-height:1.75; color:var(--text-secondary); margin-bottom:20px; }
.feature-link { display:inline-flex; align-items:center; gap:6px; font-size:15px; font-weight:600; color:var(--primary); transition:gap var(--transition); }
.feature-link:hover { gap:10px; }
/* Scenario */
.scenario { background:var(--bg); padding:var(--section-gap) 0; }
.scenario-wrap { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; max-width:var(--container); margin:0 auto; padding:0 24px; }
.scenario-visual { position:relative; border-radius:20px; overflow:hidden; background-image:url('/assets/images/backpic/back-2.png'); background-size:cover; background-position:center; min-height:400px; display:flex; align-items:flex-end; }
.scenario-visual::before { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(15,59,102,0) 40%, rgba(15,59,102,0.35) 100%); }
.scenario-card { position:relative; margin:24px; background:#fff; border-radius:14px; padding:20px 24px; box-shadow:var(--shadow-card); display:flex; align-items:center; gap:16px; }
.scenario-card img { width:96px; height:72px; object-fit:cover; border-radius:10px; }
.scenario-card-text strong { font-size:15px; color:var(--text); display:block; }
.scenario-card-text span { font-size:13px; color:var(--text-muted); }
.scenario-copy h2 { font-size:32px; font-weight:700; color:var(--primary-dark); line-height:1.4; margin-bottom:20px; }
.scenario-copy > p { font-size:16px; color:var(--text-secondary); margin-bottom:28px; }
.scenario-list { display:flex; flex-direction:column; gap:16px; margin-bottom:32px; }
.scenario-list li { display:flex; gap:12px; align-items:flex-start; }
.scenario-list svg { flex-shrink:0; margin-top:4px; color:var(--primary); }
.scenario-list span { font-size:15px; line-height:1.7; color:var(--text); }
/* Social proof */
.social-proof { background:#fff; padding:var(--section-gap) 0; }
.stats-bar { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; max-width:900px; margin:0 auto 64px; }
.stat-item { text-align:center; padding:24px 16px; background:var(--bg); border-radius:var(--radius-card); }
.stat-number { font-size:40px; font-weight:700; color:var(--primary); line-height:1.2; }
.stat-label { font-size:14px; color:var(--text-secondary); margin-top:8px; }
.review-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; max-width:var(--container); margin:0 auto; padding:0 24px; }
.review-card { background:var(--bg); border-radius:var(--radius-card); padding:28px; border-left:4px solid var(--primary); transition:box-shadow var(--transition), transform var(--transition); }
.review-card:hover { box-shadow:var(--shadow-card); transform:translateY(-2px); }
.review-stars { color:var(--accent); font-size:15px; letter-spacing:2px; margin-bottom:12px; }
.review-text { font-size:15px; line-height:1.75; color:var(--text); margin-bottom:16px; }
.review-author { font-size:14px; font-weight:600; color:var(--text-secondary); }
/* News */
.news-section { background:var(--bg); padding:var(--section-gap) 0; }
.news-list { display:flex; flex-direction:column; gap:16px; max-width:var(--container); margin:0 auto; padding:0 24px; }
.news-card { display:flex; gap:20px; background:#fff; border-radius:var(--radius-card); padding:20px; border:1px solid var(--border); box-shadow:0 2px 8px rgba(15,59,102,0.04); transition:box-shadow var(--transition), transform var(--transition); }
.news-card:hover { box-shadow:var(--shadow-card); transform:translateY(-1px); }
.news-thumb { width:180px; flex-shrink:0; }
.news-thumb img { width:100%; height:120px; object-fit:cover; border-radius:10px; }
.news-content { flex:1; min-width:0; display:flex; flex-direction:column; justify-content:center; }
.news-meta { display:flex; align-items:center; gap:12px; margin-bottom:8px; }
.news-badge { display:inline-block; background:var(--primary-light); color:var(--primary); font-size:12px; font-weight:600; padding:3px 10px; border-radius:var(--radius-badge); }
.news-date { font-size:13px; color:var(--text-muted); }
.news-content h3 { font-size:18px; font-weight:600; line-height:1.5; margin-bottom:6px; }
.news-content h3 a:hover { color:var(--primary); }
.news-summary { font-size:14px; color:var(--text-secondary); line-height:1.6; margin-bottom:8px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.news-link { font-size:14px; font-weight:600; color:var(--primary); display:inline-flex; align-items:center; gap:4px; }
.news-link:hover { gap:8px; }
.news-empty { background:#fff; border:1px dashed var(--border); border-radius:var(--radius-card); padding:48px 24px; text-align:center; color:var(--text-muted); }
.news-empty .empty-icon { font-size:36px; display:block; margin-bottom:8px; }
/* FAQ */
.faq-section { background:#fff; padding:var(--section-gap) 0; }
.faq-wrap { max-width:820px; margin:0 auto; padding:0 24px; }
.faq-item { border-bottom:1px solid var(--border); }
.faq-item:last-child { border-bottom:none; }
.faq-question { width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:24px 8px; background:none; font-size:16px; font-weight:600; color:var(--text); text-align:left; transition:color var(--transition); }
.faq-question:hover { color:var(--primary); }
.faq-question .faq-icon { position:relative; width:20px; height:20px; flex-shrink:0; }
.faq-question .faq-icon::before, .faq-question .faq-icon::after { content:''; position:absolute; background:var(--primary); border-radius:2px; transition:transform var(--transition); }
.faq-question .faq-icon::before { top:9px; left:0; right:0; height:2px; }
.faq-question .faq-icon::after { top:0; left:9px; bottom:0; width:2px; }
.faq-item.active .faq-question .faq-icon::after { transform:scaleY(0); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height 250ms ease; padding:0 8px; }
.faq-item.active .faq-answer { max-height:500px; padding:0 8px 24px; }
.faq-answer p { font-size:15px; line-height:1.8; color:var(--text-secondary); }
/* Final CTA */
.final-cta { background:var(--primary-dark); padding:80px 0; position:relative; overflow:hidden; }
.final-cta::before { content:''; position:absolute; inset:0; background-image:url('/assets/images/backpic/back-3.png'); background-size:cover; background-position:center; opacity:0.12; }
.final-cta .container { position:relative; text-align:center; max-width:720px; }
.final-cta h2 { font-size:34px; font-weight:700; color:#fff; margin-bottom:16px; line-height:1.4; }
.final-cta p { font-size:16px; color:rgba(255,255,255,0.85); margin-bottom:36px; }
/* Footer */
.site-footer { background:var(--primary-dark); color:rgba(255,255,255,0.8); padding:64px 0 24px; font-size:14px; }
.footer-top { display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:48px; max-width:var(--container); margin:0 auto 48px; padding:0 24px; }
.footer-brand .logo-text { color:#fff; font-size:22px; margin-bottom:16px; display:inline-block; }
.footer-brand p { line-height:1.8; color:rgba(255,255,255,0.7); margin-top:0; }
.footer-col h4 { color:#fff; font-size:15px; font-weight:600; margin-bottom:20px; }
.footer-col ul li { margin-bottom:12px; }
.footer-col ul a { color:rgba(255,255,255,0.7); transition:color var(--transition); }
.footer-col ul a:hover { color:#fff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.15); padding-top:24px; max-width:var(--container); margin:0 auto; padding-left:24px; padding-right:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:16px; color:rgba(255,255,255,0.5); font-size:13px; }
.footer-bottom a { color:rgba(255,255,255,0.5); }
.footer-bottom a:hover { color:#fff; }
/* Mobile CTA Bar */
.mobile-cta-bar { position:fixed; bottom:0; left:0; right:0; z-index:1000; background:#fff; border-top:1px solid var(--border); padding:12px 20px; padding-bottom:calc(12px + env(safe-area-inset-bottom)); display:flex; align-items:center; justify-content:space-between; gap:16px; box-shadow:0 -4px 16px rgba(15,59,102,0.08); }
.cta-bar-text { font-size:14px; font-weight:600; color:var(--primary-dark); }
.cta-bar-actions { display:flex; align-items:center; gap:12px; }
.cta-bar-actions .btn { padding:10px 24px; font-size:14px; }
.cta-bar-close { width:32px; height:32px; border-radius:8px; display:flex; align-items:center; justify-content:center; color:var(--text-muted); font-size:20px; transition:background var(--transition), color var(--transition); }
.cta-bar-close:hover { background:var(--bg); color:var(--text); }
body { padding-bottom:60px; }
/* Responsive */
@media (max-width: 1199.98px) {
  .hero-wrap { gap:40px; padding:80px 24px 72px; }
  .hero h1 { font-size:36px; }
  .footer-top { grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width: 991.98px) {
  .hero-wrap { grid-template-columns:1fr; text-align:center; }
  .hero-copy { max-width:100%; }
  .hero-subtitle { margin:0 auto 32px; }
  .hero-actions { justify-content:center; }
  .hero-trust { justify-content:center; }
  .hero-visual { max-width:480px; margin:48px auto 0; }
  .features-grid { grid-template-columns:1fr 1fr; }
  .scenario-wrap { grid-template-columns:1fr; gap:40px; }
  .scenario-visual { min-height:320px; }
  .review-grid { grid-template-columns:1fr 1fr; }
  .stats-bar { grid-template-columns:repeat(2, 1fr); }
  .news-thumb { width:140px; }
}
@media (max-width: 767.98px) {
  .nav-toggle { display:flex; }
  .main-nav { display:none; }
  .brand-logo { position:relative; left:auto; transform:none; order:1; }
  .header-wrap { justify-content:space-between; }
  .mobile-menu { display:block; visibility:hidden; opacity:0; transform:translateY(-8px); transition:all var(--transition); }
  .mobile-menu.open { visibility:visible; opacity:1; transform:translateY(0); }
  .mobile-menu { display:none; }
  .mobile-menu.open { display:block; }
  .hero-wrap { padding:64px 20px 56px; }
  .hero h1 { font-size:30px; }
  .hero-subtitle { font-size:16px; }
  .btn { padding:11px 22px; font-size:14px; }
  .features { padding:64px 0; }
  .features-grid { grid-template-columns:1fr; }
  .section-head h2 { font-size:26px; }
  .scenario-wrap { padding:0 20px; }
  .scenario-copy h2 { font-size:26px; }
  .stats-bar { grid-template-columns:1fr 1fr; gap:16px; }
  .stat-number { font-size:32px; }
  .review-grid { grid-template-columns:1fr; }
  .news-list { padding:0 20px; }
  .news-card { flex-direction:column; }
  .news-thumb { width:100%; }
  .news-thumb img { width:100%; height:160px; }
  .faq-wrap { padding:0 20px; }
  .final-cta { padding:64px 0; }
  .final-cta h2 { font-size:26px; }
  .footer-top { grid-template-columns:1fr; gap:32px; padding:0 20px; }
  .footer-bottom { padding-left:20px; padding-right:20px; }
  .mobile-cta-bar { padding:10px 16px; padding-bottom:calc(10px + env(safe-area-inset-bottom)); }
  .cta-bar-text { font-size:13px; }
  .cta-bar-actions .btn { padding:9px 16px; font-size:13px; }
  body { padding-bottom:56px; }
}
@media (max-width: 380px) {
  .cta-bar-text { display:none; }
  .mobile-cta-bar { justify-content:flex-end; }
}

/* roulang page: article */
:root {
  --primary: #1F6FB2;
  --primary-dark: #15548A;
  --navy: #0F3B66;
  --light-blue: #EAF1F7;
  --accent: #F2A93B;
  --accent-dark: #E08D2A;
  --bg: #F6F8FA;
  --text: #1E2A32;
  --text-secondary: #5A6B7B;
  --text-muted: #8B9AA9;
  --border: #DCE3EA;
  --white: #FFFFFF;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --radius-badge: 6px;
  --shadow-card: 0 4px 12px rgba(15,59,102,.06), 0 12px 28px rgba(15,59,102,.08);
  --shadow-hover: 0 8px 22px rgba(15,59,102,.10), 0 18px 40px rgba(15,59,102,.12);
  --transition: all .18s ease;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 860px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 64px;
  box-shadow: 0 1px 4px rgba(15,59,102,.04);
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  position: relative;
}

.main-nav ul {
  display: flex;
  gap: 28px;
  align-items: center;
}

.main-nav a {
  font-size: 15px;
  color: #334155;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  line-height: 1.4;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--primary);
  border-bottom-color: var(--primary);
  outline: none;
}

.main-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.brand-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.brand-logo a {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 19px;
  box-shadow: 0 4px 10px rgba(31,111,178,.25);
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: #334155;
  border-radius: 2px;
  transition: var(--transition);
}

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

.mobile-menu {
  display: none;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  transition: var(--transition);
  border: 1px solid transparent;
  line-height: 1.4;
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 16px rgba(31,111,178,.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  background: #0D3F63;
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-cta:focus-visible,
.btn-outline-light:focus-visible {
  outline: 3px solid rgba(31,111,178,.4);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--white);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--primary);
  transition: var(--transition);
  line-height: 1.4;
}

.btn-secondary:hover {
  background: var(--light-blue);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  transition: var(--transition);
  border: 1px solid transparent;
  line-height: 1.4;
}

.btn-cta:hover {
  background: var(--accent-dark);
  box-shadow: 0 6px 18px rgba(242,169,59,.45);
  transform: translateY(-1px);
}

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

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255,255,255,.7);
  transition: var(--transition);
  line-height: 1.4;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
  color: #fff;
}

.btn-outline-light:active {
  transform: translateY(0);
}

.article-hero {
  padding: 110px 0 32px;
  background-image: linear-gradient(rgba(234,241,247,.94), rgba(246,248,250,.98)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}

.article-meta-card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 40px;
  margin-top: 24px;
}

.breadcrumb {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

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

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--primary-dark);
  text-decoration: underline;
  outline: none;
}

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

.breadcrumb .current {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 420px;
  display: inline-block;
  vertical-align: bottom;
}

.article-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: .5px;
}

.article-meta-line {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.meta-cat,
.meta-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--light-blue);
  padding: 6px 12px;
  border-radius: var(--radius-badge);
}

.meta-cat::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.article-excerpt {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 20px 24px;
  background: var(--light-blue);
  border-left: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
}

.article-main {
  padding: 48px 0 32px;
}

.article-body {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 600;
  margin: 36px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
  line-height: 1.5;
}

.article-body p {
  margin-bottom: 16px;
  color: #334155;
  font-size: 16px;
  line-height: 1.8;
}

.article-body ul,
.article-body ol {
  margin: 0 0 16px 20px;
  padding-left: 8px;
}

.article-body ul li,
.article-body ol li {
  margin-bottom: 8px;
  color: #334155;
  font-size: 16px;
  line-height: 1.8;
}

.article-body ul li {
  list-style: disc;
}

.article-body ol li {
  list-style: decimal;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--light-blue);
  padding: 16px 24px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: normal;
}

.article-body img {
  border-radius: var(--radius-card);
  margin: 24px 0;
  box-shadow: var(--shadow-card);
  height: auto;
}

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(31,111,178,.3);
  transition: var(--transition);
}

.article-body a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  overflow: hidden;
  border-radius: 10px;
}

.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
  font-size: 15px;
  color: #334155;
}

.article-body table th {
  background: var(--light-blue);
  font-weight: 600;
  color: var(--text);
}

.not-found {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 80px 20px;
  text-align: center;
}

.nf-icon {
  display: inline-flex;
  width: 56px;
  height: 56px;
  background: var(--light-blue);
  color: var(--primary);
  border-radius: 50%;
  font-size: 30px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.not-found p {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.article-tip {
  padding: 0 0 40px;
}

.tip-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--light-blue);
  border: 1px solid rgba(31,111,178,.15);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(15,59,102,.04);
}

.tip-icon {
  color: var(--primary);
  font-size: 18px;
  line-height: 1.6;
  flex-shrink: 0;
}

.tip-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.related-section {
  padding: 72px 0;
  background: var(--bg);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  position: relative;
  padding-left: 16px;
  line-height: 1.3;
}

.section-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--primary);
  border-radius: 2px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-item {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 8px rgba(15,59,102,.05);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.related-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(31,111,178,.3);
}

.related-item:focus-visible {
  outline: 3px solid rgba(31,111,178,.4);
  outline-offset: 2px;
}

.related-item img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform .3s ease;
}

.related-item:hover img {
  transform: scale(1.02);
}

.related-info {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.5;
}

.related-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-date {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.related-date::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
  display: inline-block;
}

.related-footer {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.article-cta {
  background: var(--navy);
  padding: 72px 0;
  text-align: center;
  background-image: linear-gradient(rgba(15,59,102,.92), rgba(15,59,102,.92)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}

.article-cta h2 {
  font-size: 30px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.3;
}

.article-cta p {
  color: rgba(255,255,255,.8);
  font-size: 16px;
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

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

.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.85);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

.footer-brand .logo-text {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}

.footer-brand p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,.7);
  max-width: 280px;
}

.footer-col h4 {
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 18px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  transition: var(--transition);
}

.footer-col ul a:hover,
.footer-col ul a:focus-visible {
  color: var(--accent);
  outline: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom span {
  font-size: 13px;
  color: rgba(255,255,255,.55);
}

.footer-bottom a {
  color: rgba(255,255,255,.75);
  transition: var(--transition);
}

.footer-bottom a:hover,
.footer-bottom a:focus-visible {
  color: #fff;
  outline: none;
}

@media (max-width: 1024px) {
  .main-nav ul {
    gap: 20px;
  }

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

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

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .brand-logo {
    position: static;
    transform: none;
  }

  .header-wrap {
    justify-content: space-between;
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 20px;
    box-shadow: 0 12px 24px rgba(15,59,102,.08);
    z-index: 99;
  }

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

  .mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .mobile-menu li + li {
    border-top: 1px solid var(--border);
  }

  .mobile-menu a {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    color: #334155;
    font-weight: 500;
  }

  .mobile-menu a:hover,
  .mobile-menu a.active {
    color: var(--primary);
  }

  .container {
    padding: 0 18px;
  }

  .article-hero {
    padding: 100px 0 24px;
  }

  .article-meta-card {
    padding: 26px 20px;
    margin-top: 18px;
  }

  .article-title {
    font-size: 28px;
  }

  .article-excerpt {
    padding: 16px 18px;
    font-size: 15px;
  }

  .article-body {
    padding: 28px 20px;
  }

  .article-body h2 {
    font-size: 22px;
  }

  .article-body h3 {
    font-size: 18px;
  }

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

  .related-footer {
    margin-top: 28px;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding-bottom: 36px;
  }

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

@media (max-width: 520px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .related-item img {
    height: 140px;
  }

  .cta-btns {
    flex-direction: column;
    align-items: stretch;
    padding: 0 24px;
  }

  .cta-btns a {
    width: 100%;
  }

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

  .breadcrumb .current {
    max-width: 220px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #1B5F9C;
  --primary-dark: #10457A;
  --primary-deep: #0F3B66;
  --primary-light: #EAF1F7;
  --accent: #E8873A;
  --accent-dark: #d9772f;
  --bg: #F6F8FA;
  --card-bg: #FFFFFF;
  --text: #1E2A32;
  --text-secondary: #5A6B7B;
  --text-weak: #8B9AA9;
  --border: #DCE3EA;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 12px rgba(15,59,102,0.06), 0 12px 28px rgba(15,59,102,0.08);
  --shadow-hover: 0 8px 18px rgba(15,59,102,0.10), 0 18px 36px rgba(15,59,102,0.12);
  --transition: 0.2s ease;
  --header-h: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  padding-top: var(--header-h);
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

input,
textarea {
  font-family: inherit;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--header-h);
  position: relative;
}

.brand-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
}

.brand-logo a {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-deep);
  letter-spacing: 0.5px;
}

.main-nav ul {
  display: flex;
  gap: 32px;
}

.main-nav ul li {
  display: flex;
  align-items: center;
}

.main-nav a {
  font-size: 15px;
  color: #334155;
  padding: 8px 0;
  position: relative;
  font-weight: 500;
  transition: color var(--transition);
}

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

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

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.left-nav {
  margin-right: auto;
}

.right-nav {
  margin-left: auto;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border-radius: 8px;
  transition: background var(--transition);
}

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

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--primary-deep);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu {
  display: none;
}

/* Hero */
.page-hero {
  position: relative;
  background: var(--primary-light) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 80px 0 96px;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.88);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb span {
  color: var(--border);
}

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

.page-hero h1 {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary-deep);
  line-height: 1.25;
  margin-bottom: 18px;
}

.page-hero .hero-desc {
  max-width: 720px;
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  transition: all var(--transition);
  border: 1px solid transparent;
  min-height: 44px;
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 3px solid rgba(27, 95, 156, 0.35);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(27, 95, 156, 0.25);
}

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

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

.btn-outline:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline:active {
  transform: translateY(0);
}

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

.btn-cta:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232, 135, 58, 0.3);
}

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

.btn-block {
  width: 100%;
}

/* Service main */
.service-main {
  padding: 80px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: start;
}

.sidebar-card {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky;
  top: 88px;
  border: 1px solid #d4e2ee;
}

.sidebar-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 18px;
}

.sidebar-card li {
  border-radius: 8px;
  margin-bottom: 6px;
  transition: background var(--transition), color var(--transition);
}

.sidebar-card li a {
  display: block;
  padding: 10px 14px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}

.sidebar-card li.active a {
  background: var(--primary);
  color: #fff;
}

.sidebar-card li:not(.active) a:hover {
  background: rgba(255, 255, 255, 0.7);
  color: var(--primary);
}

.sidebar-contact {
  margin-top: 24px;
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.sidebar-contact h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 8px;
}

.sidebar-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.content-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.content-card:hover {
  box-shadow: var(--shadow-hover);
}

.content-card h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 14px;
  position: relative;
  padding-left: 16px;
}

.content-card h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--primary);
  border-radius: 2px;
}

.content-card p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-size: 15px;
}

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

.card-media {
  margin-top: 20px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* Scene section */
.scene-section {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-deep);
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto 48px;
}

.scene-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 60px;
}

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

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

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

.scene-text h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 12px;
}

.scene-text p {
  color: var(--text-secondary);
  font-size: 15px;
}

.scene-media {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* Process */
.process-section {
  padding: 80px 0;
  background: var(--bg);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.step-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  position: relative;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.step-num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: #B8CBE0;
  line-height: 1;
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-secondary);
}

/* FAQ */
.faq-section {
  padding: 80px 0;
  background: #fff;
}

.faq-section .container {
  max-width: 860px;
}

.faq-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary-deep);
  margin-bottom: 40px;
}

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

.faq-item.open {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: var(--primary-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition), color var(--transition);
}

.faq-question::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-question:hover {
  background: #dbe7f1;
  color: var(--primary-deep);
}

.faq-question:focus-visible {
  outline: 3px solid rgba(27, 95, 156, 0.3);
  outline-offset: -2px;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 20px 24px;
  color: var(--text-secondary);
  font-size: 15px;
}

/* CTA */
.cta-section {
  padding: 80px 0;
  background: var(--primary-deep);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta-copy h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-copy p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
}

.cta-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-hover);
}

.cta-form label {
  display: block;
  font-size: 14px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 500;
}

.cta-form input,
.cta-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  margin-bottom: 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: #fff;
  color: var(--text);
}

.cta-form input::placeholder,
.cta-form textarea::placeholder {
  color: var(--text-weak);
}

.cta-form input:focus,
.cta-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27, 95, 156, 0.15);
}

.cta-form textarea {
  min-height: 100px;
  resize: vertical;
}

.cta-form .btn {
  width: 100%;
}

/* Footer */
.site-footer {
  background: var(--primary-deep);
  color: #C7D3DF;
  padding: 64px 0 0;
}

.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo-text {
  font-size: 20px;
  color: #fff;
  font-weight: 700;
  display: block;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #A7B8C6;
  max-width: 280px;
}

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

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

.footer-col a {
  font-size: 14px;
  color: #A7B8C6;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 13px;
  color: #8EA3B5;
}

.footer-bottom a {
  color: #8EA3B5;
  transition: color var(--transition);
}

.footer-bottom a:hover {
  color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
  .main-nav ul {
    gap: 20px;
  }

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

@media (max-width: 768px) {
  .left-nav,
  .right-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .brand-logo {
    position: static;
    transform: none;
  }

  .header-wrap {
    justify-content: space-between;
  }

  .mobile-menu {
    display: none;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 99;
    box-shadow: 0 12px 24px rgba(15, 59, 102, 0.08);
  }

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

  .mobile-menu ul {
    width: 100%;
  }

  .mobile-menu li {
    width: 100%;
  }

  .mobile-menu a {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    color: var(--text);
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
  }

  .mobile-menu a:hover {
    background: var(--primary-light);
    color: var(--primary);
  }

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

  .page-hero {
    padding: 56px 0 64px;
  }

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

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

  .sidebar-card {
    position: static;
  }

  .scene-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .scene-block.reverse .scene-text {
    order: 0;
  }

  .scene-block.reverse .scene-media {
    order: 0;
  }

  .cta-inner {
    grid-template-columns: 1fr;
  }

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

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

  .page-hero h1 {
    font-size: 28px;
  }

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

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

  .content-card {
    padding: 22px;
  }

  .cta-form {
    padding: 22px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

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

/* roulang page: category2 */
:root {
  --primary: #1F6FB2;
  --primary-dark: #1B5F9C;
  --primary-deep: #0F3B66;
  --primary-light: #EAF1F7;
  --accent: #F2A93B;
  --accent-dark: #E8873A;
  --bg: #F6F8FA;
  --text: #1E2A32;
  --text-secondary: #5A6B7B;
  --text-muted: #8B9AA9;
  --border: #DCE3EA;
  --white: #ffffff;
  --radius-card: 14px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --radius-badge: 6px;
  --shadow-card: 0 4px 12px rgba(15,59,102,0.06), 0 12px 28px rgba(15,59,102,0.08);
  --shadow-hover: 0 8px 20px rgba(15,59,102,0.10), 0 16px 36px rgba(15,59,102,0.12);
  --container: 1200px;
  --transition: 0.25s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-dark);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
section {
  position: relative;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-head .section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-top: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(31,111,178,0.25);
}
.btn-primary:active {
  background: var(--primary-deep);
  transform: translateY(0);
}
.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-secondary:active {
  background: var(--primary-light);
  transform: translateY(0);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(242,169,59,0.28);
}
.btn-accent:active {
  transform: translateY(0);
}
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(31,111,178,0.45);
  outline-offset: 2px;
}
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}
.site-header .header-wrap {
  height: 64px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
.main-nav ul {
  display: flex;
  gap: 28px;
}
.main-nav a {
  font-size: 15px;
  color: #334155;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.main-nav a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.main-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}
.left-nav {
  justify-content: flex-start;
}
.right-nav {
  justify-content: flex-end;
}
.brand-logo a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle:hover span {
  background: var(--primary);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 16px 32px rgba(15,59,102,0.10);
  padding: 16px 24px 24px;
  z-index: 999;
}
.mobile-menu.open {
  display: block;
}
.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background var(--transition), color var(--transition);
}
.mobile-menu a:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.mobile-menu a.active {
  background: var(--primary);
  color: #fff;
}

/* ============ Breadcrumb ============ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: #C3CED9;
}
.breadcrumb .current {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ============ Hero ============ */
.page-hero {
  background: linear-gradient(180deg, #F0F5FA 0%, var(--bg) 100%);
  padding: 140px 0 72px;
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-copy .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(31,111,178,0.10);
  border: 1px solid rgba(31,111,178,0.18);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 20px;
}
.hero-copy h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 16px;
}
.hero-copy h1 span {
  color: var(--primary);
}
.hero-copy .lead {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 460px;
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-media {
  position: relative;
}
.hero-media .media-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--white);
  border: 1px solid var(--border);
}
.hero-media .media-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.hero-media .media-float {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(6px);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 20px rgba(15,59,102,0.12);
  border: 1px solid rgba(255,255,255,0.6);
}
.media-float .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #34C77B;
  flex-shrink: 0;
}
.media-float .text {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}
.media-float .text small {
  display: block;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 400;
}

/* ============ Split / Sidebar ============ */
.split-section {
  padding: 72px 0 80px;
}
.split-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}
.sidebar {
  background: var(--primary-light);
  border-radius: 16px;
  padding: 24px;
  position: sticky;
  top: 88px;
}
.sidebar h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(31,111,178,0.18);
  margin-bottom: 14px;
}
.sidebar li a {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}
.sidebar li a:hover {
  background: rgba(255,255,255,0.7);
  color: var(--primary);
}
.sidebar li a.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.split-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.content-panel {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(220,227,234,0.7);
  padding: 32px;
}
.content-panel .panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.content-panel .panel-head h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.panel-figure {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.panel-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.panel-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}
.panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.panel-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: 8px;
  flex-shrink: 0;
}
.mini-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: var(--bg);
  border-radius: 12px;
  border-left: 4px solid var(--primary);
}
.mini-note .note-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(31,111,178,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}
.mini-note p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.mini-note p strong {
  color: var(--text);
}

/* ============ Info Cards ============ */
.topic-section {
  padding: 80px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.topic-card {
  background: var(--bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  padding: 28px 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(31,111,178,0.25);
}
.topic-card .topic-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.topic-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.topic-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============ Metrics ============ */
.metrics-section {
  padding: 80px 0;
  background: var(--primary-deep);
  color: #fff;
}
.metrics-section .section-head h2 {
  color: #fff;
}
.metrics-section .section-head p {
  color: rgba(255,255,255,0.7);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.metric-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}
.metric-item:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}
.metric-item .metric-value {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--accent);
  margin-bottom: 6px;
}
.metric-item .metric-label {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}

/* ============ Guide / Feature ============ */
.guide-section {
  padding: 80px 0;
}
.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.guide-media {
  position: relative;
}
.guide-media img {
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  width: 100%;
  height: 340px;
  object-fit: cover;
  border: 1px solid var(--border);
}
.guide-media .guide-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255,255,255,0.92);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(15,59,102,0.10);
}
.guide-copy h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 14px;
}
.guide-copy > p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.guide-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}
.guide-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text);
}
.guide-points li::before {
  content: "✓";
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ============ FAQ ============ */
.faq-section {
  padding: 80px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
  margin-bottom: 12px;
  transition: background var(--transition), border-color var(--transition);
}
.faq-item:hover {
  border-color: rgba(31,111,178,0.30);
}
.faq-item.open {
  background: var(--white);
  border-color: rgba(31,111,178,0.35);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color var(--transition);
}
.faq-q:hover {
  color: var(--primary);
}
.faq-q .faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-a {
  display: none;
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-item.open .faq-a {
  display: block;
}

/* ============ CTA ============ */
.cta-section {
  padding: 80px 0;
  background: var(--primary-deep);
  text-align: center;
  color: #fff;
}
.cta-inner {
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 14px;
}
.cta-inner p {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  margin-bottom: 28px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-actions .btn-accent {
  background: var(--accent);
}
.cta-actions .btn-secondary {
  background: transparent;
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}
.cta-actions .btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  color: #fff;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255,255,255,0.8);
  padding: 56px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.65);
  margin-top: 12px;
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a {
  color: rgba(255,255,255,0.65);
}
.footer-bottom a:hover {
  color: #fff;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .guide-grid {
    gap: 32px;
  }
  .hero-grid {
    gap: 32px;
  }
}
@media (max-width: 768px) {
  .site-header .header-wrap {
    grid-template-columns: 1fr auto 1fr;
  }
  .left-nav, .right-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
    justify-self: end;
  }
  .header-wrap {
    grid-template-columns: 1fr auto;
  }
  .brand-logo {
    justify-self: start;
  }
  .site-header .header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    display: none;
  }
  .page-hero {
    padding: 120px 0 48px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-copy h1 {
    font-size: 30px;
  }
  .hero-media .media-card img {
    height: 220px;
  }
  .split-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .sidebar ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .sidebar li a {
    padding: 8px 14px;
  }
  .content-panel {
    padding: 24px 20px;
  }
  .panel-list {
    grid-template-columns: 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .guide-media img {
    height: 240px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .page-hero {
    padding: 110px 0 36px;
  }
  .hero-copy h1 {
    font-size: 26px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .content-panel {
    padding: 20px 16px;
  }
  .media-float {
    flex-direction: column;
    align-items: flex-start;
  }
}