:root {
  color-scheme: light;
  --bg: #fbfcfe;
  --surface: #fff;
  --surface-soft: #f5f7fb;
  --line: rgba(18, 27, 45, .09);
  --line-strong: rgba(18, 27, 45, .17);
  --ink: #0b0f17;
  --text: rgba(26, 35, 53, .72);
  --dim: rgba(36, 47, 68, .46);
  --brand: #3267f6;
  --ok: #15865b;
  --shell: min(1200px, calc(100vw - 48px));
  --font-sans: Inter, "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular",
    Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.85 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
img { display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(50, 103, 246, .2); }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 2px;
}

.shell { width: var(--shell); margin-inline: auto; }
.skip-link {
  position: fixed;
  top: -48px;
  left: 16px;
  z-index: 80;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 252, 254, .84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav { display: flex; min-height: 64px; align-items: center; gap: 34px; }
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
}
.nav-brand img { width: 27px; height: 27px; }
.nav-brand small { color: var(--dim); font-size: 11px; font-weight: 500; letter-spacing: .02em; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--text); font-size: 14px; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav-actions > a:first-child { color: var(--text); font-size: 14px; }
.nav-button {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 15px;
  border-radius: 7px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 650;
}
.nav-button:hover { background: #1a2231; }

.legal-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(70px, 9vw, 112px) 0 clamp(58px, 7vw, 86px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgba(18, 27, 45, .024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 27, 45, .024) 1px, transparent 1px),
    linear-gradient(180deg, #fff, #fbfcfe);
  background-size: 56px 56px, 56px 56px, auto;
  text-align: center;
}
.legal-hero::before {
  position: absolute;
  top: -290px;
  left: 50%;
  width: 900px;
  height: 520px;
  background: radial-gradient(closest-side, rgba(50, 103, 246, .13), transparent 72%);
  content: "";
  transform: translateX(-50%);
  pointer-events: none;
}
.legal-hero > .shell { position: relative; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--dim);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}
.kicker i { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.legal-hero h1 {
  margin-top: 24px;
  color: var(--ink);
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 630;
  letter-spacing: -.025em;
  line-height: 1.15;
}
.legal-hero p { max-width: 680px; margin: 20px auto 0; font-size: 16px; }
.legal-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-top: 22px;
  color: var(--dim);
  font: 500 11px/1.6 var(--font-mono);
  letter-spacing: .035em;
}

.legal-layout {
  display: grid;
  align-items: start;
  gap: clamp(42px, 7vw, 92px);
  padding-block: clamp(58px, 7vw, 94px);
  grid-template-columns: 210px minmax(0, 760px);
  justify-content: center;
}
.legal-toc {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 5px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .8);
}
.legal-toc strong { padding: 4px 9px 10px; color: var(--ink); font: 650 10px/1 var(--font-mono); letter-spacing: .1em; }
.legal-toc a { padding: 7px 9px; border-radius: 7px; color: var(--dim); font-size: 12px; line-height: 1.4; }
.legal-toc a:hover { background: var(--surface-soft); color: var(--ink); }

.legal-document { min-width: 0; }
.legal-note {
  padding: 18px 20px;
  border: 1px solid rgba(50, 103, 246, .16);
  border-radius: 12px;
  background: rgba(50, 103, 246, .045);
  color: var(--text);
  font-size: 14px;
  line-height: 1.8;
}
.legal-section { padding: 38px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 88px; }
.legal-section:last-child { border-bottom: 0; }
.legal-section h2 {
  color: var(--ink);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 640;
  letter-spacing: -.015em;
  line-height: 1.35;
}
.legal-section h3 { margin-top: 24px; color: var(--ink); font-size: 15px; font-weight: 650; }
.legal-section p { margin-top: 13px; }
.legal-section ul { display: grid; gap: 10px; margin-top: 16px; }
.legal-section li { position: relative; padding-left: 19px; }
.legal-section li::before {
  position: absolute;
  top: .78em;
  left: 1px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand);
  content: "";
}
.legal-section strong { color: rgba(11, 15, 23, .84); font-weight: 650; }
.legal-section a { color: var(--brand); text-underline-offset: 3px; }
.legal-section a:hover { text-decoration: underline; }
.data-grid { display: grid; gap: 10px; margin-top: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.data-card { padding: 17px 18px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
.data-card h3 { margin: 0; font-size: 14px; }
.data-card p { margin-top: 7px; color: var(--dim); font-size: 12.5px; line-height: 1.7; }
.contact-card { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-soft); }

.site-footer { border-top: 1px solid var(--line); background: #f2f5fa; }
.footer-inner { display: flex; min-height: 92px; align-items: center; justify-content: space-between; gap: 20px; color: var(--dim); font-size: 11.5px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 18px; }
.footer-links a:hover { color: var(--ink); }
.beian-police { display: inline-flex; align-items: center; gap: 6px; }
.beian-police img { width: 14px; height: 15px; }

@media (max-width: 820px) {
  :root { --shell: min(1200px, calc(100vw - 40px)); }
  .nav-links, .nav-actions > a:first-child { display: none; }
  .nav-brand small { display: none; }
  .legal-layout { grid-template-columns: 1fr; gap: 32px; }
  .legal-toc { position: static; display: flex; overflow-x: auto; padding: 10px; scrollbar-width: none; }
  .legal-toc::-webkit-scrollbar { display: none; }
  .legal-toc strong { display: none; }
  .legal-toc a { flex: none; white-space: nowrap; }
}

@media (max-width: 600px) {
  .legal-hero { padding-top: 58px; }
  .legal-hero p { font-size: 14px; }
  .nav-button { padding-inline: 11px; font-size: 12px; }
  .data-grid { grid-template-columns: 1fr; }
  .footer-inner { padding-block: 26px; flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}