:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --ink: #17191f;
  --text: #30343b;
  --muted: #6f7580;
  --line: #e7e9ee;
  --line-strong: #d9dde5;
  --purple: #6558d9;
  --container: min(820px, calc(100vw - 40px));
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(24px + env(safe-area-inset-top));
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.86;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 3px solid rgba(116, 92, 255, 0.3);
  outline-offset: 4px;
}

.legal-header {
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.legal-nav {
  width: var(--container);
  min-height: 60px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.legal-brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 750;
}

.legal-brand img {
  width: 30px;
  height: 30px;
  border-radius: 9px;
}

.back-home {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: #59606b;
  font-size: 14px;
  font-weight: 600;
}

.legal-main {
  width: var(--container);
  margin: 0 auto;
  padding: 34px 0 76px;
}

.legal-document-header {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line-strong);
}

.legal-title {
  margin: 0;
  color: var(--ink);
  font-size: 32px;
  line-height: 1.35;
  text-align: center;
  letter-spacing: 0;
}

.legal-intro {
  margin: 28px 0 0;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--line-strong);
  color: #343942;
  font-size: 16px;
}

.legal-intro p {
  margin: 0;
}

.legal-intro p + p {
  margin-top: 10px;
}

.legal-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 28px;
  margin: 24px 0 0;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  counter-reset: legal-toc;
}

.legal-toc-title {
  grid-column: 1 / -1;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.5;
}

.legal-toc a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  color: #414750;
  font-size: 15px;
  font-weight: 400;
  counter-increment: legal-toc;
}

.legal-toc a::before {
  content: counter(legal-toc) "、";
  color: #7b818b;
}

.legal-section {
  padding: 30px 0 2px;
  scroll-margin-top: calc(24px + env(safe-area-inset-top));
}

.legal-section h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.45;
}

.legal-section p {
  margin: 0 0 14px;
}

.legal-section ol,
.legal-section ul {
  margin: 12px 0 18px;
  padding-left: 1.45em;
}

.legal-section li + li {
  margin-top: 6px;
}

.table-scroll {
  margin: 18px 0 22px;
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
}

.legal-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.6;
}

.legal-table th,
.legal-table td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  color: var(--ink);
  background: #f2f5fc;
  font-weight: 850;
}

.legal-table tr:last-child td {
  border-bottom: 0;
}

.legal-contact {
  color: var(--purple);
  font-weight: 800;
}

.legal-footer {
  padding: 24px 0 calc(30px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: #fafbfc;
}

.legal-footer-inner {
  width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.legal-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: #5d646f;
  font-size: 14px;
  font-weight: 600;
}

.legal-footer-links a[aria-current="page"] {
  color: var(--purple);
}

.legal-copyright {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  color: #8791a4;
  font-size: 13px;
}

@media (max-width: 600px) {
  :root {
    --container: calc(100vw - 40px);
  }

  body {
    font-size: 16px;
    line-height: 1.8;
  }

  .legal-nav {
    min-height: 56px;
  }

  .legal-brand {
    font-size: 16px;
  }

  .legal-brand img {
    width: 30px;
    height: 30px;
    border-radius: 9px;
  }

  .back-home {
    min-height: 44px;
  }

  .legal-main {
    padding: 24px 0 52px;
  }

  .legal-title {
    font-size: 26px;
    line-height: 1.4;
  }

  .legal-intro {
    margin-top: 24px;
    padding-bottom: 24px;
    font-size: 16px;
  }

  .legal-toc {
    grid-template-columns: 1fr;
    gap: 1px;
    margin-top: 22px;
    padding-bottom: 22px;
  }

  .legal-toc a {
    min-height: 32px;
    font-size: 14px;
  }

  .legal-section {
    padding-top: 26px;
  }

  .legal-section h2 {
    margin-bottom: 12px;
    font-size: 20px;
  }

  .table-scroll {
    margin-right: -20px;
    border-right: 0;
    border-radius: 8px 0 0 8px;
  }

  .legal-footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 14px;
  }

  .legal-footer-links a {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
  }

  .legal-copyright {
    display: grid;
    gap: 5px;
    line-height: 1.65;
  }
}

@media (max-width: 360px) {
  :root {
    --container: calc(100vw - 32px);
  }

  .legal-title {
    font-size: 24px;
  }

  .table-scroll {
    margin-right: -16px;
  }
}

@media print {
  body {
    background: #fff;
  }

  .legal-header,
  .legal-footer,
  .legal-toc {
    display: none;
  }

  .legal-main {
    width: 100%;
    padding: 0;
  }
}