:root {
  --bg: #08111f;
  --panel: #0f1b2d;
  --panel-2: #13233a;
  --text: #eaf2ff;
  --muted: #9db0cc;
  --line: rgba(157,176,204,.18);
  --brand: #5eead4;
  --brand-2: #60a5fa;
  --ok: #86efac;
  --warn: #fbbf24;
  --shadow: 0 24px 80px rgba(0,0,0,.32);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(94,234,212,.14), transparent 28%),
    radial-gradient(circle at top left, rgba(96,165,250,.14), transparent 22%),
    linear-gradient(180deg, #07101d 0%, #09111e 100%);
  line-height: 1.72;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
header.site-header { position: sticky; top: 0; backdrop-filter: blur(14px); background: rgba(8,17,31,.75); border-bottom: 1px solid var(--line); z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { font-weight: 800; letter-spacing: .02em; font-size: 1.08rem; }
.brand span { color: var(--brand); }
.nav-links { display: flex; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
.nav-links a { color: var(--muted); font-size: .96rem; }
.hero { padding: 72px 0 48px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border: 1px solid rgba(94,234,212,.28); border-radius: 999px;
  color: var(--brand); background: rgba(94,234,212,.08); font-size: .92rem; font-weight: 600;
}
.hero-grid { display: grid; grid-template-columns: 1.2fr .85fr; gap: 28px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1.08; margin: 18px 0 18px; letter-spacing: -.03em; }
.lead { font-size: 1.08rem; color: #d7e4ff; max-width: 760px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0 24px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 46px; padding: 0 18px; border-radius: 14px; font-weight: 700;
  border: 1px solid transparent; box-shadow: var(--shadow);
}
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #07111d; }
.btn-secondary { background: rgba(255,255,255,.04); border-color: var(--line); color: var(--text); box-shadow: none; }
.hero-card, .card {
  background: linear-gradient(180deg, rgba(19,35,58,.9), rgba(11,22,36,.86));
  border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow);
}
.hero-card { padding: 22px; }
.hero-card h2 { margin-top: 0; font-size: 1.1rem; }
.kpi-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin-top: 18px; }
.kpi { padding: 16px; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); }
.kpi strong { display: block; font-size: 1.2rem; margin-bottom: 6px; color: #fff; }
.kpi span { color: var(--muted); font-size: .92rem; }
.section { padding: 30px 0 8px; }
.section h2 { font-size: clamp(1.55rem, 3vw, 2.45rem); margin: 0 0 10px; }
.section p.section-intro { color: var(--muted); max-width: 780px; margin: 0 0 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card { padding: 22px; }
.card h3 { margin-top: 0; margin-bottom: 8px; }
.list { margin: 0; padding-left: 20px; color: #dbe7fb; }
.list li + li { margin-top: 10px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,.02); border-radius: 18px; overflow: hidden; }
th, td { border: 1px solid var(--line); padding: 14px 16px; text-align: left; vertical-align: top; }
th { background: rgba(255,255,255,.04); }
.highlight { color: var(--brand); font-weight: 700; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
pre {
  margin: 0; padding: 18px; overflow-x: auto; border-radius: 18px;
  border: 1px solid rgba(255,255,255,.08); background: #06101c; color: #dff9f2;
}
.code-block { margin-top: 18px; }
.faq-item { padding: 18px 0; border-top: 1px solid var(--line); }
.faq-item:first-child { border-top: 0; }
.faq-item h3 { margin: 0 0 8px; font-size: 1.08rem; }
.note {
  padding: 16px 18px; border-radius: 18px; background: rgba(96,165,250,.08);
  border: 1px solid rgba(96,165,250,.2); color: #ddebff;
}
footer { padding: 44px 0 72px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 20px; }
.small { font-size: .92rem; color: var(--muted); }
.breadcrumbs { margin-top: 18px; color: var(--muted); font-size: .92rem; }
.page-hero { padding: 58px 0 16px; }
.tag-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0 0; }
.tag { padding: 7px 12px; border-radius: 999px; background: rgba(255,255,255,.04); border: 1px solid var(--line); color: #dbe7fb; font-size: .9rem; }
@media (max-width: 900px) {
  .hero-grid, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  .nav { padding: 10px 0; align-items: flex-start; }
}