.page-privacy {
  --pv-body-width: 720px;
  --pv-toc-width: 208px;
  display: block;
  padding-bottom: 80px;
  color: var(--c-shale);
}

/* ---------- 页首标题带 ---------- */
.page-privacy__hero {
  position: relative;
  border-top: 2px solid var(--c-gold);
  padding-top: 26px;
  padding-bottom: 44px;
  background:
    radial-gradient(120% 100% at 88% -12%, rgba(47, 224, 200, 0.12), transparent 58%),
    linear-gradient(180deg, rgba(18, 40, 61, 0.68), rgba(11, 27, 43, 0) 84%);
}

.page-privacy__hero-grid {
  display: grid;
  gap: 30px;
  align-items: end;
}

.page-privacy .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-old-tag);
}

.page-privacy .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-old-tag);
}

.page-privacy .breadcrumb a {
  color: var(--c-shale);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-privacy .breadcrumb a:hover {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-privacy__title {
  margin: 0 0 18px;
  font-size: clamp(29px, 5vw, 50px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-privacy__lede {
  max-width: 60ch;
  margin: 0 0 20px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--c-shale);
}

.page-privacy__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-privacy__figure {
  margin: 0;
  min-width: 0;
}

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

/* ---------- 主体骨架 ---------- */
.page-privacy__layout {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-privacy__body {
  min-width: 0;
}

/* ---------- 左侧条目目录 ---------- */
.page-privacy__toc {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

.page-privacy__toc-title {
  display: none;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-old-tag);
}

.page-privacy__toc-list {
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-privacy__toc-list::-webkit-scrollbar {
  display: none;
}

.page-privacy__toc-item {
  flex: 0 0 auto;
}

.page-privacy__toc-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 14px;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--c-shale);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s ease, border-color 0.22s ease;
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-privacy__toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--c-old-tag);
}

/* ---------- 正文段落骨架 ---------- */
.page-privacy__section {
  scroll-margin-top: 100px;
  padding-bottom: 48px;
}

.page-privacy__sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.page-privacy__sec-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
  padding: 1px 8px;
  border: 1px solid rgba(47, 224, 200, 0.3);
  border-radius: var(--radius);
}

.page-privacy__sec-title {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy__sec-lede {
  max-width: 60ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-shale);
}

/* ---------- 编号条目 ---------- */
.page-privacy__entry {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy__entry-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--c-old-tag);
}

.page-privacy__entry-title {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 650;
  line-height: 1.6;
  color: var(--c-paper);
}

.page-privacy__entry-text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--c-shale);
}

.page-privacy__key {
  padding: 0 4px;
  color: var(--c-paper);
  background: rgba(47, 224, 200, 0.1);
  box-shadow: inset 0 -1px 0 rgba(47, 224, 200, 0.34);
  border-radius: 2px;
}

.page-privacy__note {
  margin: 20px 0 0;
  padding: 13px 0 13px 16px;
  border-left: 2px solid var(--c-gold-dark);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-shale);
}

/* ---------- 折叠说明 ---------- */
.page-privacy__fold {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 40, 61, 0.72), rgba(11, 27, 43, 0.4));
}

.page-privacy__fold > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-cyan);
  transition: color 0.2s ease;
}

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

.page-privacy__fold > summary::before {
  content: "+";
  flex: 0 0 16px;
  width: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--c-gold);
  transition: transform 0.24s ease-out;
}

.page-privacy__fold[open] > summary::before {
  transform: rotate(45deg);
}

.page-privacy__fold > summary:hover {
  color: var(--c-green);
}

.page-privacy__fold-body {
  margin: 0;
  padding: 0 16px 16px 42px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--c-shale);
}

/* ---------- 相关说明 ---------- */
.page-privacy__related {
  padding-top: 4px;
  padding-bottom: 0;
}

.page-privacy__related-title {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy__links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy__links li {
  border-bottom: 1px solid var(--line);
}

.page-privacy__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 2px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--c-paper);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-privacy__links a::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-old-tag);
  transition: transform 0.2s ease-out, color 0.2s ease;
}

.page-privacy__links a:hover,
.page-privacy__links a:focus-visible {
  color: var(--c-green);
}

.page-privacy__links a:hover::after,
.page-privacy__links a:focus-visible::after {
  color: var(--c-green);
  transform: translateX(3px);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-privacy__hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 48px;
  }

  .page-privacy__title {
    margin-bottom: 20px;
  }
}

@media (min-width: 960px) {
  .page-privacy__layout {
    grid-template-columns: var(--pv-toc-width) minmax(0, 1fr);
    gap: 64px;
  }

  .page-privacy__toc {
    position: sticky;
    top: 96px;
    align-self: start;
    border-top: 0;
    border-bottom: 0;
    padding: 0;
  }

  .page-privacy__toc-title {
    display: block;
  }

  .page-privacy__toc-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--line);
  }

  .page-privacy__toc-link {
    white-space: normal;
    padding: 9px 12px 9px 16px;
    margin-left: -1px;
    border-bottom: 0;
    border-left: 1px solid transparent;
    font-size: 14px;
  }

  .page-privacy__toc-link:hover,
  .page-privacy__toc-link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--c-cyan);
  }

  .page-privacy__body {
    max-width: var(--pv-body-width);
  }

  .page-privacy__entry {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    padding: 20px 0;
  }
}

@media (min-width: 1180px) {
  .page-privacy__layout {
    gap: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy__toc-link,
  .page-privacy__fold > summary::before,
  .page-privacy__links a,
  .page-privacy__links a::after,
  .page-privacy .breadcrumb a {
    transition: none;
  }
}