:root {
  --ink: #151515;
  --paper: #f6f5f1;
  --muted: #696967;
  --line: #d8d6cf;
  --pink: #f62a7e;
  --sans: "Noto Sans SC", "Microsoft YaHei UI", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); letter-spacing: 0; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }

.legal-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(21,21,21,.14);
  background: rgba(246,245,241,.94);
  backdrop-filter: blur(12px);
}

.legal-brand { display: flex; align-items: center; gap: 9px; font-size: 17px; font-weight: 800; }
.legal-brand img { width: 28px; height: 28px; border-radius: 50%; }
.legal-back { padding: 10px 0; font: 11px var(--mono); color: var(--muted); }
.legal-back:hover { color: var(--pink); }

.legal-shell {
  display: grid;
  grid-template-columns: minmax(190px, 240px) minmax(0, 820px);
  gap: clamp(44px, 7vw, 110px);
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 110px;
}

.legal-index { position: sticky; top: 102px; align-self: start; }
.legal-index p { margin: 0 0 18px; font: 10px var(--mono); color: var(--pink); }
.legal-index nav { display: grid; border-top: 1px solid var(--line); }
.legal-index a { padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.4; }
.legal-index a:hover { color: var(--ink); }

.legal-document { min-width: 0; }
.legal-kicker { margin: 0 0 18px; font: 11px var(--mono); color: var(--pink); }
.legal-document h1 { max-width: 720px; margin: 0; font: 600 clamp(40px, 6vw, 70px)/1.08 var(--serif); }
.legal-meta { display: flex; flex-wrap: wrap; gap: 10px 28px; margin: 26px 0 0; padding-bottom: 34px; border-bottom: 2px solid var(--ink); color: var(--muted); font: 11px var(--mono); }
.legal-lead { margin: 36px 0 50px; font-size: 17px; line-height: 1.9; }
.legal-notice { margin: -22px 0 48px; padding: 14px 16px; border-left: 3px solid var(--pink); background: #fff; color: #555; font-size: 13px; line-height: 1.75; }

.legal-section { padding: 0 0 42px; scroll-margin-top: 92px; }
.legal-section + .legal-section { padding-top: 42px; border-top: 1px solid var(--line); }
.legal-section h2 { margin: 0 0 19px; font: 600 25px/1.35 var(--serif); }
.legal-section h3 { margin: 28px 0 10px; font-size: 15px; line-height: 1.55; }
.legal-section p, .legal-section li { color: #3f3f3d; font-size: 14px; line-height: 1.9; }
.legal-section p { margin: 0 0 14px; }
.legal-section ul, .legal-section ol { margin: 12px 0 16px; padding-left: 1.35em; }
.legal-section li + li { margin-top: 7px; }
.legal-section strong { color: var(--ink); font-weight: 700; }

.legal-footer { padding: 28px 20px 92px; border-top: 1px solid var(--line); text-align: center; color: var(--muted); font: 10px var(--mono); }

@media (max-width: 760px) {
  .legal-header { height: 60px; padding-inline: 15px; }
  .legal-brand { font-size: 15px; }
  .legal-brand img { width: 25px; height: 25px; }
  .legal-shell { display: block; width: calc(100% - 30px); padding: 48px 0 76px; }
  .legal-index { position: static; margin-bottom: 46px; }
  .legal-index nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal-index a { padding-right: 10px; font-size: 11px; }
  .legal-document h1 { font-size: 40px; }
  .legal-meta { display: grid; gap: 6px; margin-top: 20px; }
  .legal-lead { margin: 28px 0 42px; font-size: 16px; line-height: 1.85; }
  .legal-notice { margin-top: -16px; }
  .legal-section { padding-bottom: 34px; }
  .legal-section + .legal-section { padding-top: 34px; }
  .legal-section h2 { font-size: 22px; }
  .legal-section p, .legal-section li { font-size: 14px; line-height: 1.85; }
}

@media (max-width: 360px) {
  .legal-back { font-size: 10px; }
  .legal-document h1 { font-size: 35px; }
  .legal-index nav { grid-template-columns: 1fr; }
}