.page-disclaimer {
  --pd-paper-ink: #14231E;
  --pd-paper-muted: #4A5F58;
  padding-bottom: 96px;
}

.page-disclaimer .breadcrumbs {
  margin: 0 0 26px;
}

/* ---------- Hero ---------- */

.terms-hero {
  padding-top: 44px;
}

.terms-hero__inner {
  padding-bottom: 34px;
}

.terms-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(30px, 5.2vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white-000);
}

.terms-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-body);
}

.terms-hero__points {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.terms-hero__points li {
  padding: 8px 16px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

.terms-hero__art {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--ink-line);
  border-bottom: 1px solid var(--ink-line);
  background: var(--ink-800);
}

.terms-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, var(--ink-950) 0%, rgba(8, 17, 15, 0) 46%),
    repeating-linear-gradient(90deg, transparent 0 79px, var(--ink-line) 79px 80px);
}

.terms-hero__img {
  display: block;
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.05) brightness(0.8);
}

/* ---------- Layout ---------- */

.terms-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  margin-top: 52px;
}

.terms-index,
.terms-side,
.terms-body {
  min-width: 0;
}

/* ---------- 目录索引 ---------- */

.terms-index__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.terms-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  color: var(--slate-400);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.terms-index__list a .num {
  font-size: 12px;
  color: var(--amber-400);
}

.terms-index__list a:hover,
.terms-index__list a:focus-visible {
  color: var(--white-000);
  border-color: var(--cyan-400);
}

/* ---------- 条款分组 ---------- */

.terms-group {
  position: relative;
  scroll-margin-top: calc(var(--topbar-h) + 28px);
}

.terms-group::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 0;
  bottom: 0;
  width: 2px;
  border-radius: var(--radius-pill);
  background: var(--cyan-400);
  opacity: 0;
  transition: opacity var(--ease-slow);
}

.terms-group:target::before {
  opacity: 1;
}

.terms-group + .terms-group {
  margin-top: 48px;
}

.terms-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 6px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink-line);
  transition: border-color var(--ease-slow);
}

.terms-group:target .terms-group__head {
  border-bottom-color: var(--cyan-400);
}

.terms-group__no {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan-400);
}

.terms-group__head h2 {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white-000);
}

/* ---------- 条款条目 ---------- */

.terms-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.term-item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 12px;
  padding: 17px 0;
  border-bottom: 1px solid var(--ink-line);
}

.term-item:first-child {
  border-top: 1px solid var(--ink-line);
}

.term-item__no {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--slate-400);
}

.term-item__text {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
}

/* ---------- 更新节奏 ---------- */

.terms-rhythm {
  margin-top: 30px;
  padding: 20px 0 0;
  border-top: 1px dashed var(--ink-line);
}

.terms-rhythm__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0 24px;
}

.terms-rhythm__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ink-line);
  font-size: 14px;
  color: var(--slate-400);
}

.terms-rhythm__v {
  color: var(--cyan-400);
  font-size: 15px;
  white-space: nowrap;
}

/* ---------- 引用示例折叠块 ---------- */

.terms-sample {
  margin-top: 24px;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-panel);
  background: var(--paper-100);
  overflow: hidden;
}

.terms-sample summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--pd-paper-ink);
}

.terms-sample summary::-webkit-details-marker {
  display: none;
}

.terms-sample summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--pd-paper-ink);
}

.terms-sample[open] summary::after {
  content: "\2212";
}

.terms-sample summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.terms-sample__body {
  margin: 0 20px 20px;
  padding-top: 16px;
  border-top: 1px solid var(--paper-line);
}

.terms-sample__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--pd-paper-ink);
  word-break: break-word;
}

.terms-sample__hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pd-paper-muted);
}

/* ---------- 右栏 ---------- */

.terms-side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.terms-side__block {
  padding: 20px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-panel);
  background: var(--ink-800);
}

.terms-side__block--paper {
  background: var(--paper-100);
  border-color: var(--paper-line);
}

.terms-side__ver {
  margin: 8px 0 0;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cyan-400);
}

.terms-side__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate-400);
}

.terms-side__block--paper .meta-label,
.terms-side__block--paper .terms-side__note {
  color: var(--pd-paper-muted);
}

.terms-side__mail {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--pd-paper-ink);
  word-break: break-all;
}

.terms-side__links {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.terms-side__links a {
  display: block;
  padding: 9px 0;
  border-bottom: 1px solid var(--ink-line);
  color: var(--text-body);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--ease), padding-left var(--ease);
}

.terms-side__links li:last-child a {
  border-bottom: 0;
}

.terms-side__links a:hover,
.terms-side__links a:focus-visible {
  color: var(--cyan-400);
  padding-left: 6px;
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 900px) {
  .terms-layout {
    grid-template-columns: 200px minmax(0, 1fr) 220px;
    gap: 40px;
    align-items: start;
  }

  .terms-index,
  .terms-side {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }

  .terms-index__list {
    display: block;
    margin-top: 16px;
  }

  .terms-index__list li + li {
    margin-top: 2px;
  }

  .terms-index__list a {
    border-color: transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    padding: 9px 12px;
  }

  .terms-index__list a:hover,
  .terms-index__list a:focus-visible {
    background: var(--ink-800);
    border-color: var(--ink-line);
  }

  .term-item {
    grid-template-columns: 3.4rem minmax(0, 1fr);
    gap: 16px;
  }

  .terms-hero {
    padding-top: 56px;
  }

  .terms-hero__img {
    max-height: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer * {
    transition-duration: 1ms !important;
  }
}