:root {
  --bg: #f7fafc;
  --card: #ffffff;
  --line: #dbe5f1;
  --text: #0f172a;
  --muted: #475569;
  --brand: #0b3a75;
  --brand-2: #1463c2;
  --accent: #ff8a00;
  --max: 1160px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav { height: 72px; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.02em; flex-shrink:0; }
.logo { width:34px; height:34px; border-radius:10px; background: linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; display:grid; place-items:center; font-weight:900; }
.menu { display:flex; align-items:center; gap:8px; color:#334155; font-size:13px; white-space:nowrap; flex:1; justify-content:center; min-width:0; }
.menu a { padding: 6px 8px; border-radius: 8px; }
.menu a:hover, .menu a.active { color: var(--brand-2); background:#eef4ff; }
.nav .btn { white-space: nowrap; flex-shrink:0; }
.lang-switch { display:flex; gap:6px; }
.lang-btn {
  border:1px solid #c8d5e6; background:#fff; color:#334155;
  padding:6px 10px; border-radius:999px; font-size:12px; cursor:pointer;
}
.lang-btn.active { background: #eaf2ff; color: #0b3a75; border-color:#9ebbe5; }
/* Safe default: English visible even if JS fails */
[data-lang="en"] { display:inline; }
[data-lang="zh"] { display:none; }
/* One-click switch to Chinese */
html[lang-mode="zh"] [data-lang="en"] { display:none; }
html[lang-mode="zh"] [data-lang="zh"] { display:inline; }
.btn { border:1px solid #b7c8de; background:#fff; color:#0f2f5c; padding:10px 16px; border-radius:999px; font-size:14px; display:inline-block; transition:.2s ease; }
.btn.primary { border:0; color:#fff; background: linear-gradient(90deg,var(--brand),var(--brand-2)); font-weight:700; }
.btn:hover { transform: translateY(-1px); }
.hero { padding: 88px 0 60px; background: linear-gradient(135deg, #eef4ff 0%, #ffffff 65%); }
.grid-2 { display:grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; }
.kicker { color: var(--brand-2); letter-spacing:.12em; text-transform:uppercase; font-size:12px; font-weight:700; }
h1 { margin: 10px 0 14px; font-size: clamp(32px,5vw,56px); line-height:1.05; }
.lead { color: var(--muted); font-size: 18px; line-height:1.6; max-width: 640px; }
.hero-media { border-radius:20px; overflow:hidden; border:1px solid #c9dbf2; box-shadow: 0 20px 38px rgba(11,58,117,.14); position:relative; }
.hero-media img { width:100%; height:480px; object-fit:cover; }
.hero-badge { position:absolute; left:16px; bottom:16px; background: rgba(12,31,58,.84); color:#dbeafe; border-radius:12px; padding:10px 12px; font-size:13px; }
.metric-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:12px; margin-top:20px; }
.metric { background:#fff; border:1px solid var(--line); border-radius:14px; padding:14px; text-align:center; }
.metric b { font-size:24px; color: var(--brand); }
.section { padding: 64px 0; }
.section h2 { font-size:34px; margin:0 0 12px; }
.sub { color: var(--muted); margin-top:0; }
.cards { display:grid; grid-template-columns: repeat(3,1fr); gap:16px; }
.card { background: var(--card); border:1px solid var(--line); border-radius:16px; padding:18px; box-shadow: 0 8px 20px rgba(15,23,42,.04); }
.card h3 { margin: 10px 0 6px; }
.card p { margin:0; color: var(--muted); line-height:1.6; }
.card-media { padding:0; overflow:hidden; }
.card-media img { width:100%; height:190px; object-fit:cover; border-radius:16px 16px 0 0; }
.card-media .body { padding:16px 18px 18px; }
.icon { width:42px; height:42px; border-radius:12px; display:grid; place-items:center; background: linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; }
.band { background: linear-gradient(90deg, #f8fbff, #ffffff); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.logo-strip { display:grid; grid-template-columns: repeat(5,1fr); gap:12px; margin-top:20px; }
.logo-pill { border:1px solid var(--line); border-radius:999px; padding:12px; text-align:center; background:#fff; font-weight:600; color:#334155; }
.testimonials .card { border-top:3px solid var(--accent); }
.testimonials .card p { font-size:16px; line-height:1.7; }
.faq-grid { display:grid; grid-template-columns: repeat(2,1fr); gap:14px; }
.faq-item { border:1px solid var(--line); border-radius:14px; padding:14px 16px; background:#fff; }
.faq-item summary { cursor:pointer; font-weight:700; color:#0b2d59; }
.faq-item p { margin:10px 0 0; color: var(--muted); }
.cta-panel { background: linear-gradient(135deg, #0b3a75, #1463c2); color:#fff; }
.cta-panel .kicker, .cta-panel .sub { color: #e2ecff; }
.cta-inner { display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; }
.footer { border-top:1px solid var(--line); color:#64748b; padding:26px 0; font-size:14px; background:#fff; }
.small { font-size:13px; color:#64748b; }
.center { text-align:center; }
.cols-4 { display:grid; grid-template-columns: repeat(4,1fr); gap:14px; }
.form { display:grid; gap:10px; }
.form-grid-2 { display:grid; grid-template-columns: repeat(2,1fr); gap:10px; }
.input, textarea, select { width:100%; border:1px solid #cbd5e1; border-radius:12px; padding:12px 13px; font: inherit; color:var(--text); background:#fff; }
.map { border-radius:16px; overflow:hidden; border:1px solid var(--line); }
.map img { width:100%; height:240px; object-fit:cover; }
.float-quote-btn { position: fixed; right:16px; bottom:16px; z-index:50; border-radius:999px; padding:12px 16px; background: linear-gradient(90deg,var(--accent),#ffb347); color:#1f2937; font-weight:800; box-shadow:0 18px 36px rgba(255,138,0,.3); }
.portal-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:16px; }
.result-ok { color:#0f766e; font-weight:600; }
.result-warn { color:#b45309; font-weight:600; }
.timeline { margin-top:8px; padding-left:18px; }
.timeline li { margin:4px 0; }
@media (max-width: 920px) {
  .grid-2, .cards, .cols-4, .logo-strip, .metric-grid, .faq-grid, .form-grid-2, .portal-grid { grid-template-columns:1fr; }
  .menu { display:none; }
  .hero-media img { height:300px; }
}