/* v4 隐私保护协议页：吸顶目录 + 长文阅读版式 */

.legal-hero { padding-bottom: 46px; }
.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin-top: 2px;
  color: var(--muted);
  font-family: var(--latin), var(--body);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
}
.legal-meta p { margin: 0; }

.legal-body { padding: 58px 0 96px; }
.legal-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 760px);
  gap: 68px;
  align-items: start;
  max-width: 1038px;
  margin: 0;
}

/* 目录 */
.legal-toc-title,
.legal-toc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--latin), var(--body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
}
.legal-toc summary { list-style: none; cursor: pointer; }
.legal-toc summary::-webkit-details-marker { display: none; }
.legal-toc summary::after {
  content: "+";
  color: var(--red);
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
}
.legal-toc[open] summary::after { content: "−"; }
.legal-toc nav { display: flex; flex-direction: column; padding: 10px 0 4px; }
.legal-toc nav a {
  display: block;
  padding: 8px 0 8px 12px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
  transition: color .15s, border-color .15s;
}
.legal-toc nav a:hover { color: var(--ink); border-left-color: var(--red); }
.legal-help { margin-top: 14px; padding-top: 16px; border-top: 1px solid var(--line); }
.legal-help p { margin: 0 0 5px; color: var(--muted); font-size: 11px; letter-spacing: .04em; }
.legal-help a { color: var(--ink); font-size: 12.5px; border-bottom: 1px solid var(--line); }
.legal-help a:hover { border-bottom-color: var(--red); }

.legal-toc-desktop { display: none; }
.legal-toc-mobile { display: block; }

@media (min-width: 1024px) {
  .legal-toc-desktop {
    display: block;
    position: sticky;
    top: 104px;
    max-height: calc(100vh - 128px);
    overflow-y: auto;
    padding-right: 4px;
    scrollbar-width: thin;
  }
  .legal-toc-mobile { display: none; }
}

/* 正文 */
.legal-doc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
  overflow-wrap: anywhere;
}
.legal-doc > p:first-child {
  color: var(--ink);
  font-size: 16px;
  line-height: 1.9;
}
.legal-doc p { margin: 0 0 15px; }
.legal-doc strong { color: var(--ink); font-weight: 600; }
.legal-doc h2 {
  margin: 46px 0 18px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -.025em;
}
.legal-doc h2:first-of-type { margin-top: 6px; }
.legal-doc h2:target { color: var(--red-deep); }
.legal-doc .legal-subhead {
  margin: 26px 0 8px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
}
.legal-doc .legal-subhead strong { color: inherit; }
.legal-doc .legal-appendix { margin-top: 34px; color: var(--ink); font-weight: 600; }
.legal-doc .legal-notice {
  margin: 24px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--red);
  border-radius: 0 6px 6px 0;
  background: var(--red-soft);
  color: var(--ink);
}
.legal-doc .legal-notice strong { color: var(--ink); }

/* 权限表 */
.legal-table-wrap {
  margin: 18px 0 28px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}
.legal-table-wrap table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.7;
}
.legal-table-wrap td {
  padding: 10px 12px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.legal-table-wrap tr:last-child td { border-bottom: 0; }
.legal-table-wrap td:last-child { border-right: 0; }
.legal-table-wrap tr:first-child td { background: var(--cloud); color: var(--ink); }
.legal-table-wrap p { margin: 0; font-size: inherit; line-height: inherit; }
.legal-table-wrap strong { color: var(--ink); font-weight: 600; }

/* 窄屏 */
@media (max-width: 1199px) {
  .legal-toc-desktop { top: 92px; }
}
@media (max-width: 1023px) {
  .legal-body { padding: 36px 0 64px; }
  .legal-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; max-width: none; }
  .legal-toc-mobile {
    padding: 0 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
  }
  .legal-toc-mobile summary { padding: 14px 0; border-bottom: 0; }
  .legal-toc-mobile[open] summary { border-bottom: 1px solid var(--line); }
  .legal-toc-mobile nav { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; padding: 8px 0 12px; }
  .legal-toc-mobile nav a { font-size: 13px; }
  .legal-toc-mobile .legal-help { margin: 0; padding: 14px 0; }
  .legal-doc h2 { font-size: 20px; margin-top: 38px; padding-top: 18px; }
}
@media (max-width: 767px) {
  .legal-table-wrap {
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .legal-table-wrap table { display: block; min-width: 0; font-size: 13px; }
  .legal-table-wrap tbody { display: block; }
  .legal-table-wrap .legal-table-head { display: none; }
  .legal-table-wrap tr {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .legal-table-wrap td {
    display: block;
    padding: 2px 0;
    border: 0;
  }
  .legal-table-wrap td:first-child {
    margin-bottom: 4px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
  }
  .legal-table-wrap td[data-label]::before {
    content: attr(data-label) "：";
    color: var(--muted);
    font-weight: 400;
  }
  .legal-table-wrap tr:last-child td { border-bottom: 0; }
}
@media (max-width: 599px) {
  .legal-hero { padding-bottom: 34px; }
  .legal-meta { gap: 4px 14px; font-size: 11px; }
  .legal-layout { gap: 22px; }
  .legal-toc-mobile { padding: 0 14px; }
  .legal-toc-mobile nav { grid-template-columns: 1fr; padding: 6px 0 10px; }
  .legal-toc-mobile nav a { padding: 7px 0 7px 10px; font-size: 12.5px; }
  .legal-doc { font-size: 14px; line-height: 1.9; }
  .legal-doc > p:first-child { font-size: 15px; }
  .legal-doc h2 { font-size: 19px; margin-top: 34px; padding-top: 16px; }
  .legal-doc .legal-subhead { font-size: 14px; }
  .legal-doc .legal-notice { padding: 15px 16px; margin: 20px 0; }
}