.page-disclaimer {
  --clause-no-col: 4.6ch;
  --clause-stitch: repeating-linear-gradient(90deg, var(--slate-100) 0 7px, transparent 7px 15px);
  background: var(--paper);
  padding-bottom: 88px;
}

/* ── 面包屑 ─────────────────────────────── */
.page-disclaimer .crumb {
  padding: 18px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.page-disclaimer .crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-disclaimer .crumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--slate-100);
}
.page-disclaimer .crumb a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.page-disclaimer .crumb a:hover,
.page-disclaimer .crumb a:focus-visible {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar-soft);
}

/* ── 页首 ───────────────────────────────── */
.page-disclaimer .clause-head {
  position: relative;
  padding: 36px 0 0;
}
.page-disclaimer .clause-head .folio {
  margin: 0 0 14px;
}
.page-disclaimer .clause-head .page-title {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 7vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-disclaimer .clause-lede {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
}
.page-disclaimer .clause-mark {
  display: none;
}

/* ── 页首纸纹带 ─────────────────────────── */
.page-disclaimer .clause-band {
  margin: 34px 0 0;
  border-top: 1px solid var(--slate-100);
  border-bottom: 1px solid var(--slate-100);
  background: linear-gradient(180deg, var(--paper-warm) 0%, var(--index-yellow) 100%);
  overflow: hidden;
}
.page-disclaimer .clause-band img {
  display: block;
  width: 100%;
  height: clamp(116px, 24vw, 188px);
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.9;
  mix-blend-mode: multiply;
}

/* ── 条款索引 ───────────────────────────── */
.page-disclaimer .clause-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--slate-100);
}
.page-disclaimer .clause-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 13px;
  border: 1px solid var(--slate-100);
  background: var(--paper-warm);
  color: var(--slate);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease),
    border-color 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.page-disclaimer .clause-nav .nav-no {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.18s var(--ease);
}
.page-disclaimer .clause-nav a:hover,
.page-disclaimer .clause-nav a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cinnabar);
  background: var(--cinnabar-soft);
  color: var(--ink);
  box-shadow: var(--shade);
}
.page-disclaimer .clause-nav a:hover .nav-no,
.page-disclaimer .clause-nav a:focus-visible .nav-no {
  color: var(--cinnabar);
}

/* ── 条款正文 ───────────────────────────── */
.page-disclaimer .clause-wrap {
  padding-top: 4px;
}
.page-disclaimer .clause-section {
  position: relative;
  padding: 40px 0 6px;
  scroll-margin-top: 96px;
}
.page-disclaimer .clause-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--clause-stitch);
}
.page-disclaimer .clause-section:first-child::before {
  display: none;
}
.page-disclaimer .clause-section h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(19px, 4.4vw, 24px);
  line-height: 1.42;
  color: var(--ink);
}
.page-disclaimer .clause-section h2 .num {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
}

.page-disclaimer .clause-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-disclaimer .clause-list > li {
  display: grid;
  grid-template-columns: var(--clause-no-col) 1fr;
  column-gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--slate-100);
}
.page-disclaimer .clause-list > li:first-child {
  border-top: 0;
  padding-top: 4px;
}
.page-disclaimer .clause-no {
  display: block;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cinnabar);
  opacity: 0.82;
}
.page-disclaimer .clause-list p {
  margin: 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate);
}
.page-disclaimer .clause-list a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--cinnabar-soft);
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.page-disclaimer .clause-list a:hover,
.page-disclaimer .clause-list a:focus-visible {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}
.page-disclaimer .clause-list .mono {
  color: var(--ink);
  font-size: 0.94em;
}

/* ── 页脚动作 ───────────────────────────── */
.page-disclaimer .clause-foot {
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--slate);
}
.page-disclaimer .to-top {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border: 1px solid var(--slate);
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease),
    color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-disclaimer .to-top span {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cinnabar);
  transition: color 0.18s var(--ease);
}
.page-disclaimer .to-top:hover,
.page-disclaimer .to-top:focus-visible {
  transform: translateY(-2px);
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.page-disclaimer .to-top:hover span,
.page-disclaimer .to-top:focus-visible span {
  color: var(--cinnabar-soft);
}

/* ── 键盘焦点 ───────────────────────────── */
.page-disclaimer a:focus-visible,
.page-disclaimer summary:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

/* ── 桌面端 ─────────────────────────────── */
@media (min-width: 720px) {
  .page-disclaimer {
    --clause-no-col: 6ch;
  }
  .page-disclaimer .crumb {
    padding-top: 24px;
  }
  .page-disclaimer .clause-head {
    padding-top: 52px;
  }
  .page-disclaimer .clause-head .page-title {
    margin-bottom: 22px;
  }
  .page-disclaimer .clause-lede {
    font-size: 17px;
  }
  .page-disclaimer .clause-mark {
    display: grid;
    place-items: center;
    position: absolute;
    top: 58px;
    right: 0;
    width: 46px;
    height: 46px;
    border: 2px solid var(--cinnabar);
    color: var(--cinnabar);
    font-family: var(--serif);
    font-size: 22px;
    line-height: 1;
    opacity: 0.9;
  }
  .page-disclaimer .clause-band {
    margin-top: 40px;
  }
  .page-disclaimer .clause-nav {
    padding: 26px 0;
  }
  .page-disclaimer .clause-section {
    padding-top: 48px;
  }
  .page-disclaimer .clause-section h2 {
    margin-bottom: 22px;
  }
  .page-disclaimer .clause-list > li {
    column-gap: 20px;
    padding: 14px 0;
  }
  .page-disclaimer .clause-list p {
    font-size: 16px;
  }
  .page-disclaimer .clause-no {
    font-size: 13px;
    padding-top: 2px;
  }
}

/* ── 打印 ───────────────────────────────── */
@media print {
  .page-disclaimer {
    background: #fff;
    padding-bottom: 0;
  }
  .page-disclaimer .crumb,
  .page-disclaimer .clause-nav,
  .page-disclaimer .clause-band,
  .page-disclaimer .clause-foot,
  .page-disclaimer .clause-mark {
    display: none !important;
  }
  .page-disclaimer .clause-head {
    padding-top: 0;
  }
  .page-disclaimer .clause-section {
    padding-top: 20px;
    break-inside: avoid;
  }
  .page-disclaimer .clause-section::before {
    background: none;
    border-top: 1px solid #b9b9b9;
  }
  .page-disclaimer .clause-section h2 .num,
  .page-disclaimer .clause-no {
    color: #444;
  }
  .page-disclaimer .clause-list > li {
    border-top-color: #dcdcdc;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .clause-nav a,
  .page-disclaimer .to-top,
  .page-disclaimer .clause-list a,
  .page-disclaimer .crumb a {
    transition: none;
  }
  .page-disclaimer .clause-nav a:hover,
  .page-disclaimer .clause-nav a:focus-visible,
  .page-disclaimer .to-top:hover,
  .page-disclaimer .to-top:focus-visible {
    transform: none;
  }
}