:root {
  --primary: #087f9b;
  --primary-strong: #07556b;
  --secondary: #22d3ee;
  --accent: #059669;
  --accent-soft: #d1fae5;
  --bg: #f5fbfc;
  --surface: #ffffff;
  --surface-strong: #e8f7f8;
  --text: #11363f;
  --muted: #5b737a;
  --border: #bdebf2;
  --danger: #dc2626;
  --warning: #d97706;
  --shadow: 0 18px 50px rgba(8, 85, 107, .14);
  --radius: 8px;
  --max: 1180px;
  font-family: "Noto Sans", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 1000; background: var(--text); color: #fff; padding: 10px 14px; border-radius: 6px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(245,251,252,.88); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(189,235,242,.8); }
.nav-wrap { max-width: var(--max); margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 16px; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 8px; background: var(--primary); color: #fff; }
.brand-mark svg { width: 20px; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a { min-height: 40px; display: inline-flex; align-items: center; padding: 8px 12px; border-radius: 8px; color: var(--muted); transition: background .2s ease, color .2s ease; }
.site-nav a:hover, .site-nav a.active { background: #fff; color: var(--primary-strong); }
.lang-link { border: 1px solid var(--border); background: #fff; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); }
.hero, .page-hero, .tool-panel, .section, .split-band, .content-section, .source-table-wrap, .checklist-board, .legal-content { max-width: var(--max); margin: 0 auto; padding-left: 20px; padding-right: 20px; }
.hero { min-height: calc(100dvh - 68px); display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); gap: 34px; align-items: center; padding-top: 42px; padding-bottom: 50px; }
.eyebrow { margin: 0 0 10px; color: var(--primary); font-weight: 800; letter-spacing: 0; }
h1, h2, h3 { font-family: Figtree, "Noto Sans", "Microsoft YaHei", system-ui, sans-serif; line-height: 1.18; letter-spacing: 0; color: #0c2f38; }
h1 { margin: 0; font-size: clamp(30px, 4vw, 36px); }
h2 { margin: 0 0 12px; font-size: 26px; }
h3 { margin: 0 0 8px; font-size: 17px; }
.hero-lead, .page-hero p, .section-heading p, .content-section p { color: var(--muted); max-width: 760px; }
.hero-lead { margin: 18px 0 0; font-size: 16px; }
.hero-actions, .form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 16px; border-radius: 8px; border: 1px solid transparent; cursor: pointer; font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 3px solid rgba(34,211,238,.55); outline-offset: 2px; }
.btn.primary { background: var(--primary); color: #fff; box-shadow: 0 12px 24px rgba(8,127,155,.22); }
.btn.secondary { background: #fff; color: var(--primary-strong); border-color: var(--border); }
.btn.ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn svg { width: 18px; }
.text-link { display: inline-flex; align-items: center; color: var(--primary-strong); font-weight: 900; border-bottom: 2px solid var(--secondary); }
.hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 28px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 14px; min-height: 118px; box-shadow: 0 10px 28px rgba(8,85,107,.08); }
.stat-card svg { color: var(--accent); width: 20px; }
.stat-card strong { display: block; margin-top: 12px; font-size: 20px; color: #082f38; }
.stat-card span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.hero-visual { position: relative; min-height: 520px; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); background: #dff7fb; }
.hero-visual img { width: 100%; height: 100%; min-height: 520px; object-fit: cover; filter: saturate(1.05) contrast(1.02); }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,85,107,.08), rgba(8,85,107,.45)); pointer-events: none; }
.floating-report { position: absolute; left: 24px; right: 24px; bottom: 24px; z-index: 2; background: rgba(255,255,255,.92); border: 1px solid rgba(255,255,255,.75); border-radius: 8px; padding: 18px; box-shadow: 0 18px 40px rgba(5,32,41,.22); backdrop-filter: blur(10px); }
.floating-report span { color: var(--muted); font-weight: 700; }
.floating-report strong { display: block; margin: 4px 0 12px; font-size: 24px; color: var(--primary-strong); }
.floating-report p { margin: 10px 0 0; color: var(--muted); }
.mini-bars { display: grid; gap: 6px; }
.mini-bars b { display: block; height: 8px; border-radius: 99px; background: linear-gradient(90deg, var(--accent), var(--secondary)); }
.tool-panel { display: grid; grid-template-columns: minmax(0, .9fr) minmax(340px, 1.1fr) minmax(300px, .85fr); gap: 18px; align-items: start; padding-top: 34px; padding-bottom: 34px; }
.tool-panel.compact { padding-top: 12px; }
.section-heading { text-align: center; max-width: 760px; margin: 0 auto 24px; }
.section-heading.left { text-align: left; margin: 0; }
.assessment-form, .report-card, .content-section article, .consult-box, .legal-content, .source-table-wrap { background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 14px 36px rgba(8,85,107,.08); }
.assessment-form { padding: 18px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
label { display: grid; gap: 6px; color: #254952; font-weight: 700; }
input, select, textarea { width: 100%; min-height: 44px; border: 1px solid #b8dbe2; border-radius: 8px; padding: 10px 12px; background: #fbfeff; color: var(--text); }
textarea { min-height: 100px; resize: vertical; }
.risk-flags { margin: 16px 0 0; padding: 14px; border: 1px solid var(--border); border-radius: 8px; display: grid; gap: 10px; }
.risk-flags legend { padding: 0 8px; font-weight: 800; }
.risk-flags label { display: flex; align-items: flex-start; gap: 8px; font-weight: 600; color: var(--muted); }
.risk-flags input { width: 18px; min-height: 18px; margin-top: 3px; }
.report-card { min-height: 420px; padding: 18px; position: sticky; top: 86px; }
.report-empty { height: 100%; min-height: 360px; display: grid; place-items: center; text-align: center; align-content: center; color: var(--muted); }
.report-empty svg { width: 42px; height: 42px; color: var(--primary); }
.report-result { display: grid; gap: 14px; }
.risk-badge { display: inline-flex; align-items: center; width: fit-content; gap: 8px; padding: 7px 10px; border-radius: 8px; font-weight: 900; }
.risk-low { background: #dcfce7; color: #166534; }
.risk-medium { background: #fef3c7; color: #92400e; }
.risk-high { background: #fee2e2; color: #991b1b; }
.risk-critical { background: #7f1d1d; color: #fff; }
.score-ring { height: 12px; border-radius: 99px; overflow: hidden; background: #e7f4f7; }
.score-ring b { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--warning), var(--danger)); }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.metric { background: var(--surface-strong); border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.metric strong { display: block; font-size: 18px; }
.metric span { color: var(--muted); font-size: 12px; }
.reason-list, .step-list { margin: 0; padding-left: 18px; color: var(--muted); }
.report-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.page-hero { padding-top: 54px; padding-bottom: 30px; }
.page-hero.tight { max-width: 940px; }
.page-hero.car-hero { max-width: var(--max); }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag-row span, .level { border-radius: 999px; background: var(--surface-strong); border: 1px solid var(--border); padding: 5px 9px; color: var(--primary-strong); font-weight: 800; font-size: 12px; }
.section { padding-top: 46px; padding-bottom: 46px; }
.section.no-top { padding-top: 10px; }
.card-grid, .city-grid, .guide-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.guide-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.model-card, .city-card, .guide-card { background: #fff; border: 1px solid var(--border); border-radius: 8px; min-height: 206px; padding: 18px; display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.guide-card { min-height: 236px; }
.guide-card svg { width: 24px; height: 24px; color: var(--accent); margin-bottom: 12px; }
.model-card:hover, .city-card:hover, .guide-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--secondary); }
.model-card span, .city-card span, .guide-card span { color: var(--primary); font-weight: 800; font-size: 12px; }
.model-card p, .city-card p, .guide-card p { color: var(--muted); flex: 1; }
.model-card small { color: var(--muted); }
.split-band { margin-top: 36px; margin-bottom: 36px; display: grid; grid-template-columns: minmax(0, .85fr) minmax(300px, 1fr); gap: 18px; align-items: center; background: #103944; color: #eaffff; border-radius: 8px; padding-top: 30px; padding-bottom: 30px; }
.split-band h2 { color: #fff; }
.split-band p { color: #c9e9ee; }
.risk-list { display: grid; gap: 12px; }
.risk-list article { display: flex; gap: 12px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); border-radius: 8px; padding: 14px; }
.risk-list svg { width: 22px; flex: 0 0 auto; color: var(--secondary); }
.risk-list h3 { color: #fff; font-size: 15px; }
.city-strip { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; }
.city-strip a { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 14px; min-height: 118px; }
.city-strip strong { display: block; font-size: 17px; }
.city-strip span { display: block; margin-top: 8px; color: var(--muted); font-size: 12px; }
.content-section { padding-top: 22px; padding-bottom: 22px; }
.info-grid, .detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.info-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.content-section article { padding: 18px; }
.note { background: #fff7ed; border-left: 4px solid var(--warning); padding: 10px 12px; border-radius: 6px; }
.check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.check-grid article { display: flex; align-items: flex-start; gap: 10px; min-height: 78px; }
.check-grid svg { color: var(--accent); width: 20px; flex: 0 0 auto; }
.warning-grid, .reading-grid, .negotiation-grid { display: grid; gap: 14px; }
.warning-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.warning-grid article { background: #fff7ed; border: 1px solid #fed7aa; border-radius: 8px; padding: 16px; display: flex; gap: 10px; align-items: flex-start; color: #7c2d12; font-weight: 800; min-height: 94px; }
.warning-grid svg { width: 20px; flex: 0 0 auto; color: var(--warning); }
.reading-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.reading-card, .negotiation-grid article { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 18px; box-shadow: 0 14px 36px rgba(8,85,107,.08); }
.reading-card svg, .negotiation-grid svg { width: 24px; height: 24px; color: var(--primary); margin-bottom: 12px; }
.reading-card dl { margin: 12px 0 0; display: grid; gap: 8px; }
.reading-card dt { font-weight: 900; color: var(--primary-strong); }
.reading-card dd { margin: 0; color: var(--muted); }
.negotiation-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.negotiation-grid ul { padding-left: 18px; color: var(--muted); }
.question-bank { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 16px; display: grid; gap: 10px; box-shadow: 0 14px 36px rgba(8,85,107,.08); }
.copy-line { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; color: var(--text); }
.copy-line input { width: 18px; min-height: 18px; margin-top: 4px; }
.checklist-board { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; padding-top: 20px; padding-bottom: 46px; }
.checklist-stage { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 18px; }
.check-item { display: flex; grid-template-columns: auto 1fr; align-items: flex-start; gap: 10px; padding: 12px 0; border-top: 1px solid #e3f3f6; font-weight: 400; }
.check-item:first-of-type { border-top: 0; }
.check-item input { width: 18px; min-height: 18px; margin-top: 5px; }
.check-item small { display: block; color: var(--muted); margin-top: 3px; }
.source-table-wrap { overflow-x: auto; margin-top: 18px; margin-bottom: 40px; padding: 4px; }
.source-table { width: 100%; border-collapse: collapse; min-width: 780px; }
.source-table th, .source-table td { padding: 12px; border-bottom: 1px solid #dceff3; text-align: left; vertical-align: top; }
.source-table th { color: var(--primary-strong); background: #f0fbfd; }
.source-table a { color: var(--primary-strong); font-weight: 800; }
.consult-box { padding: 18px; display: grid; gap: 12px; }
.legal-content { margin-top: 18px; margin-bottom: 46px; padding: 22px; max-width: 860px; }
.site-footer { margin-top: 40px; background: #092e38; color: #d9f6fb; }
.footer-grid { max-width: var(--max); margin: 0 auto; padding: 34px 20px; display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 24px; }
.footer-brand { font-size: 18px; font-weight: 900; color: #fff; margin-bottom: 10px; }
.site-footer p { color: #addce5; margin: 0 0 10px; }
.site-footer h2 { color: #fff; font-size: 15px; margin-bottom: 10px; }
.site-footer a { display: block; color: #d9f6fb; padding: 4px 0; }
.asset-credit { font-size: 12px; }
@media (prefers-reduced-motion: reduce) {
  *, html { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}
@media (max-width: 1080px) {
  .hero, .tool-panel { grid-template-columns: 1fr; }
  .report-card { position: static; }
  .card-grid, .city-grid, .guide-grid, .guide-grid.three, .reading-grid, .negotiation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .warning-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .city-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
  body { font-size: 14px; }
  .nav-toggle { display: grid; place-items: center; }
  .site-nav { position: absolute; left: 12px; right: 12px; top: 64px; display: none; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 10px; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .hero { min-height: auto; padding-top: 28px; }
  .hero-visual, .hero-visual img { min-height: 360px; }
  .hero-stats, .form-grid, .info-grid, .detail-grid, .check-grid, .checklist-board, .footer-grid, .split-band { grid-template-columns: 1fr; }
  .card-grid, .city-grid, .guide-grid, .guide-grid.three, .warning-grid, .reading-grid, .negotiation-grid { grid-template-columns: 1fr; }
  .tool-panel { padding-top: 20px; }
  .metric-grid { grid-template-columns: 1fr; }
  .floating-report { left: 14px; right: 14px; bottom: 14px; }
  .city-strip { grid-template-columns: 1fr; }
}
@media print {
  .site-header, .site-footer, .hero-actions, .form-actions, .btn, .nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
  .checklist-stage, .report-card, .content-section article { box-shadow: none; break-inside: avoid; }
}