.page-privacy {
  --pv-gutter: clamp(20px, 5vw, 56px);
  --pv-line: rgba(200, 162, 74, 0.22);
  position: relative;
  padding-bottom: clamp(72px, 10vw, 128px);
  color: var(--text);
  background-color: var(--ink);
  background-image:
    radial-gradient(120% 55% at 82% -8%, rgba(124, 77, 255, 0.10), transparent 62%),
    radial-gradient(90% 45% at 8% 0%, rgba(47, 208, 255, 0.05), transparent 58%);
  background-repeat: no-repeat;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding-top: clamp(26px, 5vw, 52px);
}

.page-privacy .privacy-hero__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pv-gutter);
  padding-bottom: clamp(26px, 4vw, 44px);
}

.page-privacy .privacy-hero__inner .eyebrow {
  margin: clamp(22px, 3.5vw, 40px) 0 0;
}

.page-privacy .privacy-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(44px, 8.6vw, 112px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: 0.035em;
  background-image: linear-gradient(176deg, var(--champagne) 0%, var(--gold) 52%, #8b6c26 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.page-privacy .privacy-lead {
  max-width: 56ch;
  margin: 22px 0 0;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .privacy-hero__band {
  height: clamp(150px, 30vh, 320px);
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background-color: var(--obsidian);
}

.page-privacy .privacy-hero__band img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.5;
  filter: saturate(0.82);
}

/* ---------- 版式骨架 ---------- */
.page-privacy .privacy-layout {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pv-gutter);
  padding-top: clamp(44px, 6vw, 76px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-privacy .privacy-body {
  display: grid;
  gap: clamp(46px, 6vw, 76px);
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-section {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid var(--line);
  scroll-margin-top: 40px;
}

.page-privacy .privacy-section::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 30px;
  background-image: linear-gradient(180deg, var(--gold), transparent);
}

.page-privacy .privacy-section__index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-privacy .privacy-section h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 300;
  line-height: 1.34;
  letter-spacing: 0.025em;
  color: var(--text);
}

.page-privacy .privacy-section p {
  max-width: var(--measure);
  margin: 0 0 14px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
}

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

.page-privacy .privacy-section a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 208, 255, 0.32);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-privacy .privacy-section a:hover,
.page-privacy .privacy-section a:focus-visible {
  color: var(--champagne);
  border-bottom-color: var(--gold);
}

/* ---------- 数据类别清单 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  max-width: var(--measure);
}

.page-privacy .privacy-list li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-privacy .privacy-list__num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--electric);
}

.page-privacy .privacy-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-16);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
}

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

/* ---------- 留存周期表 ---------- */
.page-privacy .privacy-table-wrap {
  margin: 22px 0 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-table {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-privacy .privacy-table__caption {
  caption-side: bottom;
  padding-top: 12px;
  text-align: left;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-privacy .privacy-table th,
.page-privacy .privacy-table td {
  padding: 14px 18px 14px 0;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}

.page-privacy .privacy-table th {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--muted);
  white-space: nowrap;
}

.page-privacy .privacy-table td {
  color: var(--muted);
}

.page-privacy .privacy-table td:first-child {
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
}

.page-privacy .privacy-table td:nth-child(2) {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--amber);
  white-space: nowrap;
}

/* ---------- 折叠区 ---------- */
.page-privacy .privacy-details {
  max-width: var(--measure);
  margin-top: 24px;
  padding: 0 20px;
  background-color: var(--obsidian);
  border-left: 1px solid var(--gold);
}

.page-privacy .privacy-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .privacy-details summary::after {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 220ms var(--ease);
}

.page-privacy .privacy-details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}

.page-privacy .privacy-details summary:hover {
  color: var(--champagne);
}

.page-privacy .privacy-steps {
  margin: 0 0 20px;
  padding-left: 20px;
}

.page-privacy .privacy-steps li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .privacy-steps li:last-child {
  margin-bottom: 0;
}

/* ---------- 回到顶部 ---------- */
.page-privacy .privacy-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-privacy .privacy-top::before {
  content: "";
  width: 18px;
  height: 1px;
  background-color: var(--gold);
  transition: width 220ms var(--ease);
}

.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  color: var(--gold);
}

.page-privacy .privacy-top:hover::before,
.page-privacy .privacy-top:focus-visible::before {
  width: 34px;
}

/* ---------- 目录 ---------- */
.page-privacy .privacy-toc {
  display: none;
}

@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 700px) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
    align-items: start;
  }

  .page-privacy .privacy-toc {
    display: block;
    position: sticky;
    top: 40px;
  }

  .page-privacy .privacy-body {
    max-width: 700px;
  }
}

.page-privacy .privacy-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-privacy .privacy-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .privacy-toc li {
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-toc li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-toc a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms var(--ease);
}

.page-privacy .privacy-toc a::before {
  content: "";
  flex: none;
  width: 12px;
  height: 1px;
  margin-top: -3px;
  background-color: var(--line);
  transition: width 220ms var(--ease), background-color 220ms var(--ease);
}

.page-privacy .privacy-toc a:hover,
.page-privacy .privacy-toc a:focus-visible {
  color: var(--text);
}

.page-privacy .privacy-toc a:hover::before,
.page-privacy .privacy-toc a:focus-visible::before {
  width: 24px;
  background-color: var(--gold);
}

.page-privacy .privacy-toc__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gold);
  opacity: 0.78;
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 640px) {
  .page-privacy .privacy-hero__band {
    height: 150px;
  }

  .page-privacy .privacy-section {
    padding-left: 16px;
  }

  .page-privacy .privacy-list li {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 8px;
  }

  .page-privacy .privacy-details {
    padding: 0 16px;
  }

  .page-privacy .privacy-section p {
    font-size: 15px;
    line-height: 1.8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-details summary::after,
  .page-privacy .privacy-top::before,
  .page-privacy .privacy-toc a::before {
    transition: none;
  }
}