.page-privacy {
  --privacy-rail: 92px;
  --privacy-measure: 66ch;
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
  background:
    radial-gradient(1200px 520px at 88% -8%, rgba(27, 39, 73, 0.85), rgba(11, 18, 38, 0) 68%),
    var(--ink-900);
}

/* 纯 CSS 阅读进度线，浏览器不支持滚动驱动动画时保持不可见 */
.page-privacy .privacy-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--gold), var(--gold-soft) 55%, var(--cinnabar));
  pointer-events: none;
  z-index: 200;
}

@supports (animation-timeline: scroll()) {
  .page-privacy .privacy-progress {
    animation: privacy-scroll-progress linear both;
    animation-timeline: scroll(root block);
  }
}

@keyframes privacy-scroll-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.page-privacy .breadcrumbs {
  padding-block: clamp(18px, 3vw, 30px) 0;
}

/* 首屏 */
.page-privacy .privacy-hero {
  padding-block: clamp(34px, 5vw, 62px) clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--ink-600);
}

.page-privacy .privacy-hero-tag {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-privacy .privacy-hero-title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--porcelain);
}

.page-privacy .privacy-lede {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.8;
  color: var(--porcelain-dim);
}

/* 页首画框 */
.page-privacy .privacy-figure {
  margin: clamp(32px, 5vw, 64px) 0 0;
  border: 1px solid var(--ink-600);
}

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

/* 目录 */
.page-privacy .privacy-toc {
  margin-block: clamp(40px, 6vw, 84px);
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--ink-600);
  border-left: 2px solid var(--gold);
  background: linear-gradient(155deg, rgba(27, 39, 73, 0.92), rgba(11, 18, 38, 0.55));
  backdrop-filter: blur(6px);
}

.page-privacy .privacy-toc-label {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

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

.page-privacy .privacy-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 2px;
  border-bottom: 1px solid rgba(46, 62, 107, 0.7);
  color: var(--porcelain);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 120ms var(--ease), border-color 120ms var(--ease), padding-left 160ms var(--ease);
}

.page-privacy .privacy-toc-list a:hover,
.page-privacy .privacy-toc-list a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold);
  padding-left: 8px;
}

.page-privacy .privacy-toc-list .toc-num {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* 条款 */
.page-privacy .privacy-clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding-block: clamp(38px, 5.5vw, 82px);
  border-top: 1px solid var(--ink-600);
}

.page-privacy .clause-rail {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-privacy .clause-rail::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--ink-600), rgba(46, 62, 107, 0));
}

.page-privacy .clause-num {
  font-size: clamp(20px, 2.2vw, 26px);
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-privacy .clause-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--porcelain-dim);
  text-transform: uppercase;
}

.page-privacy .clause-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.1vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--porcelain);
}

.page-privacy .clause-body p {
  margin: 0 0 18px;
  max-width: var(--privacy-measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--porcelain-dim);
}

.page-privacy .clause-body p strong {
  color: var(--porcelain);
  font-weight: 600;
}

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

.page-privacy .clause-body .text-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 74, 0.45);
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-privacy .clause-body .text-link:hover,
.page-privacy .clause-body .text-link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* 条目列表 */
.page-privacy .privacy-list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 24px;
  max-width: var(--privacy-measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--porcelain-dim);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 12px;
  height: 2px;
  background: var(--gold);
}

.page-privacy .privacy-list li strong {
  color: var(--porcelain);
  font-weight: 600;
}

/* 朱砂红引用块 */
.page-privacy .privacy-note {
  margin: 26px 0 0;
  padding: 16px 0 16px 22px;
  max-width: var(--privacy-measure);
  border-left: 2px solid var(--cinnabar);
  background: linear-gradient(90deg, rgba(178, 58, 46, 0.16), rgba(178, 58, 46, 0) 78%);
  font-size: 15px;
  line-height: 1.85;
  color: var(--porcelain);
}

/* 保留时间对照 */
.page-privacy .retention-grid {
  margin: 0 0 24px;
  border: 1px solid var(--ink-600);
  background: var(--ink-600);
  display: grid;
  gap: 1px;
}

.page-privacy .retention-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink-800);
}

.page-privacy .retention-row--head {
  background: var(--ink-700);
}

.page-privacy .retention-key {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-privacy .retention-use {
  font-size: 15px;
  line-height: 1.75;
  color: var(--porcelain-dim);
}

.page-privacy .retention-span {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--porcelain);
}

.page-privacy .retention-row--head .retention-key,
.page-privacy .retention-row--head .retention-use,
.page-privacy .retention-row--head .retention-span {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--porcelain-dim);
}

/* 页尾 */
.page-privacy .privacy-tail {
  margin-top: clamp(40px, 6vw, 88px);
  padding-top: 26px;
  border-top: 1px solid var(--ink-600);
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-tail-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-privacy .privacy-tail-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--porcelain-dim);
}

/* 桌面端：左侧固定编号栏 + 右侧正文 */
@media (min-width: 860px) {
  .page-privacy .privacy-clause {
    grid-template-columns: var(--privacy-rail) minmax(0, 1fr);
    gap: 0 clamp(24px, 4vw, 56px);
  }

  .page-privacy .clause-rail {
    display: block;
    align-self: start;
    position: sticky;
    top: calc(var(--header-h-scrolled) + 32px);
  }

  .page-privacy .clause-rail::after {
    display: none;
  }

  .page-privacy .privacy-toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 34px;
  }

  .page-privacy .retention-row {
    grid-template-columns: minmax(0, 168px) minmax(0, 1fr) minmax(0, 110px);
    align-items: baseline;
    gap: 20px;
    padding: 18px 22px;
  }

  .page-privacy .retention-span {
    text-align: right;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-hero {
    padding-inline-start: 6px;
  }

  .page-privacy .privacy-clause .clause-body {
    padding-inline-end: clamp(0px, 4vw, 60px);
  }
}

@media (max-width: 480px) {
  .page-privacy .privacy-hero-title {
    font-size: clamp(28px, 8.4vw, 36px);
  }

  .page-privacy .privacy-toc {
    padding: 18px 16px;
  }

  .page-privacy .privacy-toc-list a {
    font-size: 14px;
    gap: 10px;
  }

  .page-privacy .retention-row {
    padding: 14px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc-list a {
    transition: color 120ms linear;
  }

  .page-privacy .privacy-toc-list a:hover,
  .page-privacy .privacy-toc-list a:focus-visible {
    padding-left: 2px;
  }

  .page-privacy .privacy-progress {
    animation: none;
  }
}