/* GEO-P0-20260711 · 三个静态购买前入口共用样式 */
:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5d687a;
  --line: #e4e9f1;
  --surface: #ffffff;
  --soft: #f5f8fc;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --brand-soft: #eaf2ff;
  --good: #166534;
  --good-soft: #ecfdf3;
  --warn: #92400e;
  --warn-soft: #fff8e6;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.site-header .shell {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 850;
  text-decoration: none;
}

.brand-badge {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 11px;
  letter-spacing: 0.03em;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
}

.top-nav a {
  color: var(--muted);
  text-decoration: none;
}

.top-nav a:hover { color: var(--brand); }

.hero {
  padding: 68px 0 52px;
  background:
    radial-gradient(circle at 80% 18%, rgba(37, 99, 235, 0.13), transparent 30%),
    linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 30px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

h1 {
  max-width: 760px;
  margin: 18px 0 14px;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.lede {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.16s, box-shadow 0.16s, background 0.16s;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(23, 32, 51, 0.1);
}

.button-primary {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.button-primary:hover { background: var(--brand-dark); }

.answer-card {
  padding: 24px;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.answer-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-size: 14px;
}

.answer-card p {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  font-weight: 650;
}

.answer-card small {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

main { padding: 54px 0 72px; }

.content-section + .content-section { margin-top: 52px; }

.section-heading {
  max-width: 760px;
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 0 0 6px;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.3;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.decision-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.decision-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 28px rgba(23, 32, 51, 0.05);
}

.decision-number {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 850;
}

.decision-card h3 {
  margin: 14px 0 7px;
  font-size: 18px;
  line-height: 1.35;
}

.decision-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.safety-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 26px;
  padding: 28px;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  background: var(--good-soft);
}

.safety-panel h2 {
  margin: 0;
  color: var(--good);
  font-size: 25px;
  line-height: 1.35;
}

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

.checklist li {
  position: relative;
  padding-left: 28px;
  color: #254334;
}

.checklist li + li { margin-top: 10px; }

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--good);
  font-weight: 900;
}

.notice {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid #fde68a;
  border-radius: 14px;
  background: var(--warn-soft);
  color: var(--warn);
  font-size: 14px;
}

.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: center;
  padding: 30px;
  border-radius: 22px;
  background: #172033;
  color: #fff;
}

.cta-panel h2 {
  margin: 0 0 6px;
  font-size: 26px;
}

.cta-panel p {
  margin: 0;
  color: #cbd5e1;
  font-size: 14px;
}

.cta-panel .button:not(.button-primary) {
  border-color: #475569;
  background: transparent;
  color: #fff;
}

.independent-note {
  margin-top: 18px;
  color: #94a3b8;
  font-size: 12px;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 820px) {
  .hero { padding: 46px 0 38px; }
  .hero-grid,
  .safety-panel,
  .cta-panel { grid-template-columns: 1fr; }
  .decision-grid { grid-template-columns: 1fr; }
  .cta-panel .cta-actions { margin-top: 0; }
}

@media (max-width: 580px) {
  .shell { width: min(100% - 24px, 1080px); }
  .site-header .shell { min-height: 58px; }
  .top-nav a:first-child { display: none; }
  .top-nav { gap: 12px; font-size: 12px; }
  h1 { font-size: 34px; }
  .lede { font-size: 15px; }
  .hero-actions,
  .cta-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  main { padding: 40px 0 56px; }
  .content-section + .content-section { margin-top: 40px; }
  .decision-card,
  .safety-panel,
  .cta-panel { padding: 21px; }
}