.page-privacy {
  --prv-ink: var(--bl-mist-100);
  --prv-dim: var(--bl-slate-400);
  --prv-measure: 40rem;
  display: block;
  color: var(--prv-ink);
  padding-bottom: clamp(72px, 12vw, 140px);
}

.page-privacy .prv-shell {
  padding-top: clamp(20px, 4vw, 40px);
}

/* ---------- 面包屑 ---------- */
.page-privacy .prv-crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--prv-dim);
  margin-bottom: clamp(24px, 5vw, 48px);
}

.page-privacy .prv-crumb a {
  color: var(--prv-dim);
  text-decoration: none;
}

.page-privacy .prv-crumb a:hover,
.page-privacy .prv-crumb a:focus-visible {
  color: var(--bl-cyan-400);
}

.page-privacy .prv-crumb-sep {
  color: var(--bl-cyan-600);
}

/* ---------- 首屏 ---------- */
.page-privacy .prv-hero {
  max-width: 58rem;
  padding-bottom: clamp(24px, 5vw, 44px);
  border-bottom: 1px solid var(--bl-line-soft);
}

.page-privacy h1 {
  font-family: var(--bl-font-display);
  font-weight: 200;
  font-size: clamp(38px, 9vw, 82px);
  line-height: 1.04;
  letter-spacing: .1em;
  color: #fff;
  margin: 10px 0 20px;
}

.page-privacy .prv-lede {
  max-width: 44rem;
  font-size: clamp(16px, 2.2vw, 18.5px);
  line-height: 1.85;
  color: var(--prv-ink);
}

.page-privacy .prv-meta {
  margin-top: 20px;
  font-family: var(--bl-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  line-height: 1.8;
  color: var(--prv-dim);
}

.page-privacy .prv-meta-num {
  color: var(--bl-gold-300);
}

/* ---------- 头图 ---------- */
.page-privacy .prv-banner {
  margin: clamp(28px, 6vw, 56px) 0 clamp(40px, 8vw, 76px);
}

.page-privacy .prv-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1200 / 520;
  object-fit: cover;
  border-radius: var(--bl-radius);
}

.page-privacy .prv-banner figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--prv-dim);
}

/* ---------- 主栅格 ---------- */
.page-privacy .prv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 6vw, 48px);
  align-items: start;
}

.page-privacy .prv-margin {
  display: none;
}

/* ---------- 章节索引 ---------- */
.page-privacy .prv-toc {
  border-top: 1px solid var(--bl-line);
  padding-top: 16px;
}

.page-privacy .prv-toc-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--bl-cyan-400);
}

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

.page-privacy .prv-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--prv-dim);
  text-decoration: none;
  border-bottom: 1px dashed rgba(47, 227, 208, .1);
  transition: color .24s var(--bl-ease), transform .24s var(--bl-ease);
}

.page-privacy .prv-toc-list a:hover,
.page-privacy .prv-toc-list a:focus-visible {
  color: var(--bl-cyan-400);
  transform: translateX(4px);
}

.page-privacy .prv-toc-list .bl-index {
  font-family: var(--bl-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--bl-cyan-600);
}

/* ---------- 正文列 ---------- */
.page-privacy .prv-content {
  max-width: var(--prv-measure);
}

.page-privacy .prv-sec {
  position: relative;
  border-left: 2px solid var(--bl-line-soft);
  padding-left: clamp(16px, 4vw, 28px);
  margin-bottom: clamp(44px, 8vw, 72px);
  scroll-margin-top: 104px;
}

.page-privacy .prv-sec:last-child {
  margin-bottom: 0;
}

.page-privacy .prv-sec::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 34px;
  background: var(--bl-cyan-400);
}

.page-privacy .prv-sec-title {
  font-family: var(--bl-font-display);
  font-weight: 300;
  font-size: clamp(21px, 3.4vw, 29px);
  line-height: 1.35;
  letter-spacing: .05em;
  color: #fff;
  margin: 0 0 16px;
}

.page-privacy .prv-sec-num {
  display: block;
  font-family: var(--bl-font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .2em;
  color: var(--bl-cyan-400);
  margin-bottom: 6px;
}

.page-privacy .prv-sec p {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--prv-ink);
}

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

/* ---------- 条款列表 ---------- */
.page-privacy .prv-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-privacy .prv-list:last-child {
  margin-bottom: 0;
}

.page-privacy .prv-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--prv-ink);
}

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

.page-privacy .prv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--bl-cyan-600);
}

.page-privacy .prv-list strong {
  font-weight: 500;
  color: #fff;
}

/* ---------- 保存期限卡 ---------- */
.page-privacy .prv-terms {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-privacy .prv-term {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 16px 18px;
  background: var(--bl-navy-800);
  border: 1px solid var(--bl-line-soft);
  border-radius: var(--bl-radius);
  transition: border-color .24s var(--bl-ease);
}

.page-privacy .prv-term:hover {
  border-color: var(--bl-line-strong);
}

.page-privacy .prv-term-val {
  font-family: var(--bl-font-mono);
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--bl-gold-300);
  white-space: nowrap;
}

.page-privacy .prv-term-val span {
  font-size: 12px;
  letter-spacing: .06em;
  margin-left: 3px;
  opacity: .82;
}

.page-privacy .prv-term-desc {
  flex: 1 1 12rem;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--prv-dim);
}

/* ---------- 旁注 ---------- */
.page-privacy .bl-note {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--prv-dim);
}

/* ---------- 焦点态 ---------- */
.page-privacy a:focus-visible {
  outline: 2px solid var(--bl-cyan-400);
  outline-offset: 3px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-privacy .prv-terms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .prv-term {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .page-privacy .prv-term:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面三栏 ---------- */
@media (min-width: 1000px) {
  .page-privacy .prv-layout {
    grid-template-columns: 200px minmax(0, 1fr) 200px;
    column-gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-privacy .prv-toc {
    grid-column: 1;
    position: sticky;
    top: calc(var(--bl-header-h) + 28px);
  }

  .page-privacy .prv-content {
    grid-column: 2;
  }

  .page-privacy .prv-margin {
    grid-column: 3;
    display: block;
    align-self: stretch;
    min-height: 100%;
    background-image:
      linear-gradient(var(--bl-line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--bl-line-soft) 1px, transparent 1px);
    background-size: 48px 48px;
    border-right: 1px solid var(--bl-line-soft);
    opacity: .5;
    pointer-events: none;
  }
}

/* ---------- 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .prv-toc-list a,
  .page-privacy .prv-term {
    transition: none;
  }
}
<<<END>>>