.page-privacy {
  --privacy-rule: rgba(185, 138, 75, .34);
  --privacy-rule-soft: rgba(185, 138, 75, .18);
  --privacy-measure: 34em;
  padding-bottom: 4.5rem;
}

/* 面包屑与顶部横幅 */
.page-privacy .privacy-crumb {
  padding-top: 1.4rem;
  font-size: .82rem;
}

.page-privacy .privacy-banner {
  margin: 1.1rem 0 2.6rem;
}

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

/* 标题区 */
.page-privacy .privacy-head {
  max-width: 44rem;
  margin-bottom: 2.2rem;
}

.page-privacy .privacy-head h1 {
  margin: .55rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 2.7rem);
  line-height: 1.24;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-privacy .privacy-lede {
  max-width: var(--privacy-measure);
  margin: 0;
  font-size: 1rem;
  line-height: 1.88;
  color: var(--slate);
}

/* 目录条 */
.page-privacy .privacy-toc {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.1rem;
  padding: .95rem 0;
  margin-bottom: 1.6rem;
  border-top: 1px solid var(--privacy-rule);
  border-bottom: 1px solid var(--privacy-rule);
}

.page-privacy .privacy-toc a {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--deep-aqua);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .privacy-toc a:hover,
.page-privacy .privacy-toc a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--copper);
}

/* 正文单栏 */
.page-privacy .privacy-sheet {
  max-width: 56rem;
  margin-inline: auto;
}

.page-privacy .privacy-block {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: .55rem;
  padding: 2.1rem 0;
  border-top: 1px solid var(--privacy-rule);
}

.page-privacy .privacy-block:last-of-type {
  border-bottom: 1px solid var(--privacy-rule);
}

.page-privacy .privacy-block__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--copper);
  line-height: 1.5;
}

.page-privacy .privacy-block__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-privacy .privacy-anchor {
  margin-left: .45rem;
  font-family: var(--font-mono);
  font-size: .78em;
  font-weight: 400;
  color: var(--copper);
  text-decoration: none;
  opacity: 0;
  transition: opacity .18s var(--ease);
}

.page-privacy .privacy-block__title:hover .privacy-anchor,
.page-privacy .privacy-anchor:focus-visible {
  opacity: 1;
}

/* 段落与列表 */
.page-privacy .privacy-copy {
  max-width: var(--privacy-measure);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-privacy .privacy-copy p {
  margin: 0 0 1.05rem;
}

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

.page-privacy .privacy-copy ul {
  list-style: none;
  margin: 0 0 1.05rem;
  padding: 0;
}

.page-privacy .privacy-copy li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: .6rem;
  line-height: 1.82;
}

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

.page-privacy .privacy-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: .42rem;
  height: .42rem;
  background: var(--aqua);
  border-radius: 1px;
  transform: rotate(45deg);
}

.page-privacy .privacy-contact {
  padding: .85rem 1.1rem;
  margin: 0 0 1.05rem;
  background: var(--mist);
  border-left: 3px solid var(--aqua);
  font-size: .95rem;
  line-height: 1.7;
  color: var(--deep-aqua);
  word-break: break-all;
}

/* 收束区块 */
.page-privacy .privacy-outro {
  max-width: 56rem;
  margin: 3rem auto 0;
  padding: 1.6rem 1.4rem;
  background: var(--mist);
  border-top: 2px solid var(--aqua);
}

.page-privacy .privacy-outro__title {
  margin: 0 0 .55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-privacy .privacy-outro p:last-child {
  margin: 0;
  max-width: var(--privacy-measure);
  font-size: .95rem;
  line-height: 1.8;
  color: var(--slate);
}

/* 回到顶部 */
.page-privacy .back-top {
  position: fixed;
  right: 1rem;
  bottom: 1.15rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem .8rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--deep-aqua);
  text-decoration: none;
  background: rgba(247, 250, 248, .93);
  border: 1px solid var(--privacy-rule);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .back-top:hover,
.page-privacy .back-top:focus-visible {
  color: var(--ink);
  border-color: var(--aqua);
}

@supports (animation-timeline: scroll()) {
  .page-privacy .back-top {
    animation: privacy-top-in linear both;
    animation-timeline: scroll();
    animation-range: 90vh 110vh;
  }
}

@keyframes privacy-top-in {
  from {
    opacity: 0;
    visibility: hidden;
  }
  to {
    opacity: 1;
    visibility: visible;
  }
}

/* 桌面端：编号轨道 + 正文 */
@media (min-width: 880px) {
  .page-privacy .privacy-block {
    grid-template-columns: 4.5rem minmax(0, 1fr);
    column-gap: 2.4rem;
    padding: 2.6rem 0;
  }

  .page-privacy .privacy-block__num {
    padding-top: .5rem;
    font-size: .84rem;
  }

  .page-privacy .privacy-copy {
    max-width: 36em;
  }

  .page-privacy .privacy-banner {
    margin: 1.4rem 0 3rem;
  }
}

/* 窄屏微调 */
@media (max-width: 560px) {
  .page-privacy .privacy-lede,
  .page-privacy .privacy-copy {
    max-width: 100%;
  }

  .page-privacy .privacy-toc {
    gap: .45rem .85rem;
  }

  .page-privacy .privacy-toc a {
    font-size: .7rem;
  }

  .page-privacy .privacy-outro {
    padding: 1.3rem 1.1rem;
  }

  .page-privacy .back-top {
    right: .7rem;
    bottom: .8rem;
  }
}