.page-privacy {
  --prv-rail-w: 232px;
  display: block;
  background: var(--ink);
  color: var(--cold);
}

/* ---------- 首屏说明带 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 6vw, 64px);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(212, 175, 55, .10), transparent 62%),
    var(--ink-deep);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: clamp(72px, 14vw, 132px) 100%;
  opacity: .55;
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero .breadcrumb {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

.page-privacy .privacy-hero__title {
  margin: 12px 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 5.6vw, 58px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--cold);
}

.page-privacy .privacy-hero__lead {
  margin: 18px 0 0;
  max-width: 58ch;
  color: var(--ink-veil);
  font-size: 16px;
  line-height: 1.8;
}

/* ---------- 首屏要点条 ---------- */
.page-privacy .privacy-meta {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-privacy .privacy-meta li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background: rgba(18, 41, 63, .55);
}

.page-privacy .privacy-meta__key {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-privacy .privacy-meta__val {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--champagne);
}

/* ---------- 首屏主图 ---------- */
.page-privacy .privacy-figure-wrap {
  padding-top: clamp(20px, 3vw, 32px);
  padding-bottom: clamp(6px, 1.4vw, 14px);
}

.page-privacy .privacy-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 1;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-deep);
}

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

.page-privacy .privacy-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 16, 25, 0) 42%, rgba(6, 16, 25, .84) 100%);
  pointer-events: none;
}

.page-privacy .privacy-figure .figure__caption {
  position: absolute;
  left: clamp(14px, 3vw, 28px);
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(12px, 2.4vw, 22px);
  z-index: 1;
  margin: 0;
  max-width: 64ch;
  color: var(--ink-veil);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 正文区骨架 ---------- */
.page-privacy .privacy-doc {
  padding: clamp(40px, 7vw, 84px) 0 clamp(56px, 9vw, 110px);
}

.page-privacy .privacy-doc__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 44px);
}

/* ---------- 章节索引窄栏 ---------- */
.page-privacy .privacy-rail {
  border-top: 1px solid var(--line-strong);
  padding-top: 16px;
}

.page-privacy .privacy-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold);
}

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

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(124, 141, 166, .14);
  color: var(--slate);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-privacy .privacy-rail__link .data-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}

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

.page-privacy .privacy-rail__note {
  margin-top: 22px;
  padding: 14px 16px;
  border-left: 2px solid var(--teal);
  background: rgba(18, 41, 63, .62);
}

.page-privacy .privacy-rail__note .privacy-rail__note-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--teal);
}

.page-privacy .privacy-rail__note p {
  margin: 0 0 8px;
  color: var(--ink-veil);
  font-size: 13px;
  line-height: 1.68;
}

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

/* ---------- 编号章节 ---------- */
.page-privacy .privacy-chapter {
  position: relative;
  margin-bottom: clamp(30px, 5vw, 52px);
  padding-left: clamp(20px, 3.6vw, 40px);
  border-left: 1px solid var(--line);
}

.page-privacy .privacy-chapter:last-of-type {
  margin-bottom: 0;
}

.page-privacy .privacy-chapter::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 4px;
  width: 1px;
  height: 46px;
  background: var(--gold-line);
  transition: height .4s var(--ease);
}

.page-privacy .privacy-chapter:target::before {
  height: calc(100% - 8px);
}

.page-privacy .privacy-chapter__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-privacy .privacy-chapter:target .privacy-chapter__num {
  color: var(--champagne);
}

.page-privacy .privacy-chapter__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.38;
  letter-spacing: .005em;
  color: var(--cold);
}

.page-privacy .privacy-chapter__body p {
  margin: 0 0 14px;
  max-width: 60ch;
  color: var(--ink-veil);
  font-size: 15.5px;
  line-height: 1.78;
}

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

.page-privacy .privacy-chapter__body a {
  color: var(--champagne);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

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

/* ---------- 条目列表 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 20px;
  max-width: 62ch;
  color: var(--ink-veil);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

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

/* ---------- 折叠说明 ---------- */
.page-privacy .privacy-fold {
  margin-top: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .privacy-fold > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  color: var(--champagne);
  font-size: 14px;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .privacy-fold > summary::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--gold);
}

.page-privacy .privacy-fold[open] > summary::before {
  content: "−";
}

.page-privacy .privacy-fold[open] > summary {
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-fold__body {
  padding: 16px 16px 6px;
}

.page-privacy .privacy-fold__body .privacy-list {
  margin-top: 0;
}

/* ---------- 回到顶部 ---------- */
.page-privacy .privacy-top-wrap {
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  background: var(--gold-tint);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-privacy .privacy-top::before {
  content: "↑";
  font-size: 13px;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-privacy .privacy-figure {
    aspect-ratio: 16 / 9;
  }

  .page-privacy .privacy-figure .figure__caption {
    font-size: 12px;
  }

  .page-privacy .privacy-meta li {
    flex: 1 1 100%;
    justify-content: space-between;
  }

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

  .page-privacy .privacy-chapter::before {
    height: 32px;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-doc__grid {
    grid-template-columns: minmax(0, 1fr) var(--prv-rail-w);
    gap: 76px;
    align-items: start;
  }

  .page-privacy .privacy-body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-privacy .privacy-rail {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-chapter::before,
  .page-privacy .privacy-rail__link,
  .page-privacy .privacy-top,
  .page-privacy .privacy-chapter__body a {
    transition: none;
  }
}