.page-privacy {
  --privacy-measure: 66ch;
  --privacy-amber-soft: rgba(245, 158, 11, 0.14);
  background: var(--paper);
  color: var(--ink);
  padding-block: 20px 72px;
  overflow-x: clip;
}

.page-privacy .privacy-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 40;
  background: transparent;
  pointer-events: none;
}

.page-privacy .privacy-progress__bar {
  display: block;
  height: 100%;
  width: calc(var(--p, 0) * 100%);
  background: var(--violet);
  transition: width 0.12s linear;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-block: 14px 34px;
  border-bottom: 1px solid var(--line-strong);
}

.page-privacy .privacy-hero h1 {
  margin: 12px 0 16px;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

.page-privacy .privacy-hero .lead {
  max-width: 40ch;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.85;
}

.page-privacy .privacy-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
}

.page-privacy .privacy-meta li {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--cream);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 6px 11px;
}

.page-privacy .privacy-hero__figure {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--ink);
  overflow: hidden;
  position: relative;
}

.page-privacy .privacy-hero__figure::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(196, 181, 253, 0.35);
  pointer-events: none;
}

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 正文骨架 ---------- */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 32px;
}

.page-privacy .privacy-main {
  min-width: 0;
}

.page-privacy .privacy-toc {
  align-self: start;
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: 4px;
}

.page-privacy .privacy-toc .toc__title {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-privacy .privacy-toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-privacy .privacy-toc .toc__link {
  display: block;
  padding: 7px 10px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 3px 3px 0;
  transition: color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-privacy .privacy-toc .toc__link:hover,
.page-privacy .privacy-toc .toc__link:focus-visible {
  color: var(--violet);
  background: rgba(109, 40, 217, 0.06);
}

.page-privacy .privacy-toc .toc__link.is-active {
  color: var(--violet);
  border-left-color: var(--violet);
  background: rgba(109, 40, 217, 0.08);
  font-weight: 600;
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-sec {
  padding-block: 30px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.page-privacy .privacy-sec:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-privacy .privacy-sec h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-num {
  flex: none;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--violet);
  border: 1px solid var(--violet);
  border-radius: 3px;
  padding: 3px 7px;
}

.page-privacy .prose p {
  max-width: var(--privacy-measure);
  margin: 0 0 14px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-privacy .prose p:last-child {
  margin-bottom: 0;
}

.page-privacy .prose a {
  color: var(--violet);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .prose a:hover,
.page-privacy .prose a:focus-visible {
  color: var(--ink);
  background: rgba(196, 181, 253, 0.42);
}

/* ---------- 信息条目 ---------- */
.page-privacy .privacy-items {
  display: grid;
  gap: 0;
  margin-top: 8px;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-item {
  padding: 18px 0;
  border-top: 1px dashed var(--line-strong);
}

.page-privacy .privacy-item:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-privacy .privacy-item h3 {
  position: relative;
  margin: 0 0 8px;
  padding-left: 16px;
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-privacy .privacy-item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--violet);
  transform: rotate(45deg);
}

.page-privacy .privacy-item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 保存期限 ---------- */
.page-privacy .privacy-term {
  display: grid;
  gap: 14px;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-term__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
  background: var(--cream);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 4px;
}

.page-privacy .privacy-term__label {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-privacy .privacy-term__value {
  justify-self: start;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--amber-deep);
  background: var(--privacy-amber-soft);
  border: 1px solid rgba(245, 158, 11, 0.5);
  border-radius: 4px;
  padding: 3px 9px;
}

.page-privacy .privacy-term__desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-privacy .privacy-details {
  margin-top: 18px;
  max-width: var(--privacy-measure);
  background: var(--cream);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

.page-privacy .privacy-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-privacy .privacy-details summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-details summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--violet);
}

.page-privacy .privacy-details[open] summary::after {
  content: "−";
}

.page-privacy .privacy-details summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: -2px;
}

.page-privacy .privacy-details__body {
  padding: 4px 16px 16px;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-details__body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 回程横幅 ---------- */
.page-privacy .privacy-return {
  margin-top: 40px;
  padding: 24px 22px;
  display: grid;
  gap: 16px;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 4px;
  color: var(--on-dark);
}

.page-privacy .privacy-return__text {
  margin: 0;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
  color: var(--paper);
  max-width: 44ch;
}

.page-privacy .privacy-return__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-privacy .privacy-return .btn--light {
  color: var(--ink);
  background: var(--paper);
  border-color: var(--paper);
}

.page-privacy .privacy-return .btn--ghost {
  color: var(--paper);
  background: transparent;
  border-color: var(--line-dark);
}

.page-privacy .privacy-return .btn--ghost:hover,
.page-privacy .privacy-return .btn--ghost:focus-visible {
  border-color: var(--violet-light);
  color: var(--violet-light);
}

/* ---------- 返回顶部 ---------- */
.page-privacy .privacy-top {
  position: fixed;
  right: 14px;
  bottom: 18px;
  z-index: 30;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(16, 16, 20, 0.28);
  transition: background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  background: var(--violet);
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-privacy {
    padding-block: 26px 96px;
  }

  .page-privacy .privacy-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
    gap: 32px;
    padding-block: 18px 40px;
  }

  .page-privacy .privacy-hero__figure {
    border-radius: 4px;
  }

  .page-privacy .privacy-term__row {
    grid-template-columns: 96px 104px minmax(0, 1fr);
    align-items: center;
    gap: 14px;
  }

  .page-privacy .privacy-term__value {
    justify-self: center;
  }

  .page-privacy .privacy-return {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 28px 30px;
  }

  .page-privacy .privacy-top {
    right: 24px;
    bottom: 26px;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-progress {
    left: var(--rail-w);
  }

  .page-privacy .privacy-body {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: 52px;
    padding-top: 40px;
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 24px;
    background: transparent;
    border: 0;
    border-left: 2px solid var(--line-strong);
    border-radius: 0;
    padding: 0 0 0 4px;
  }

  .page-privacy .privacy-sec {
    padding-block: 36px;
  }

  .page-privacy .privacy-sec:first-child {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-progress__bar,
  .page-privacy .privacy-top,
  .page-privacy .privacy-toc .toc__link {
    transition: none;
  }

  .page-privacy .privacy-top:hover,
  .page-privacy .privacy-top:focus-visible {
    transform: none;
  }
}