.page-privacy {
  --pv-ink-accent: #0E6B62;
  --pv-anchor-offset: calc(var(--header-h) + 26px);
  background: var(--c-void);
  color: var(--c-paper);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ---------- 首屏横幅 ---------- */

.page-privacy .pv-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  align-content: end;
  min-height: clamp(420px, 56vh, 600px);
  padding-block: clamp(40px, 8vw, 80px);
  border-bottom: 1px solid var(--glass-line);
}

.page-privacy .pv-hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
}

.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(7, 16, 38, 0.5) 0%, rgba(7, 16, 38, 0.8) 56%, var(--c-void) 100%),
    radial-gradient(90% 70% at 78% 16%, rgba(155, 140, 255, 0.3), transparent 62%),
    radial-gradient(70% 62% at 10% 86%, rgba(56, 225, 208, 0.22), transparent 66%);
}

.page-privacy .pv-hero-inner {
  position: relative;
  max-width: var(--shell-max);
}

.page-privacy .breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-privacy .breadcrumbs-item {
  color: var(--c-mist);
}

.page-privacy .breadcrumbs-item + .breadcrumbs-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(143, 163, 200, 0.5);
}

.page-privacy .breadcrumbs-item a {
  color: var(--c-neon);
  text-decoration: none;
}

.page-privacy .breadcrumbs-item a:hover,
.page-privacy .breadcrumbs-item a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-privacy .pv-hero .index-label {
  display: block;
  margin: 0 0 16px;
}

.page-privacy .pv-hero h1 {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.1rem, 6.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy .pv-lede {
  margin: 0;
  max-width: 40em;
  font-size: clamp(1rem, 1.9vw, 1.1rem);
  line-height: 1.78;
  color: var(--c-mist);
}

/* ---------- 主体布局 ---------- */

.page-privacy .pv-body {
  margin-top: clamp(36px, 6vw, 72px);
}

.page-privacy .pv-layout {
  display: grid;
  gap: clamp(26px, 5vw, 46px);
  align-items: start;
}

/* ---------- 章节索引 ---------- */

.page-privacy .pv-toc-panel {
  padding: 18px 20px 20px;
  border-radius: var(--radius-m);
}

.page-privacy .pv-toc-panel .index-label {
  display: block;
  margin: 0;
}

.page-privacy .pv-toc-list {
  display: flex;
  gap: 4px;
  margin: 14px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

.page-privacy .pv-toc-list > li {
  flex: 0 0 auto;
}

.page-privacy .pv-nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 0 7px 14px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--c-mist);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 4px;
  transition: color 200ms var(--ease);
}

.page-privacy .pv-nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 2px;
  border-radius: 2px;
  background: rgba(143, 163, 200, 0.35);
  transition: background 200ms var(--ease);
}

.page-privacy .pv-nav-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-amber);
}

.page-privacy .pv-nav-link:hover,
.page-privacy .pv-nav-link:focus-visible {
  color: var(--c-paper);
}

.page-privacy .pv-nav-link:hover::before,
.page-privacy .pv-nav-link:focus-visible::before {
  background: var(--c-neon);
}

.page-privacy:has(#pv-overview:target) .pv-nav-link[href="#pv-overview"],
.page-privacy:has(#pv-collect:target) .pv-nav-link[href="#pv-collect"],
.page-privacy:has(#pv-purpose:target) .pv-nav-link[href="#pv-purpose"],
.page-privacy:has(#pv-rights:target) .pv-nav-link[href="#pv-rights"],
.page-privacy:has(#pv-storage:target) .pv-nav-link[href="#pv-storage"],
.page-privacy:has(#pv-updates:target) .pv-nav-link[href="#pv-updates"] {
  color: var(--c-paper);
}

.page-privacy:has(#pv-overview:target) .pv-nav-link[href="#pv-overview"]::before,
.page-privacy:has(#pv-collect:target) .pv-nav-link[href="#pv-collect"]::before,
.page-privacy:has(#pv-purpose:target) .pv-nav-link[href="#pv-purpose"]::before,
.page-privacy:has(#pv-rights:target) .pv-nav-link[href="#pv-rights"]::before,
.page-privacy:has(#pv-storage:target) .pv-nav-link[href="#pv-storage"]::before,
.page-privacy:has(#pv-updates:target) .pv-nav-link[href="#pv-updates"]::before {
  background: var(--c-neon);
}

.page-privacy .pv-toc-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(143, 163, 200, 0.22);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 文档区 ---------- */

.page-privacy .pv-doc {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
  min-width: 0;
}

.page-privacy .pv-section {
  background: var(--c-paper);
  color: var(--ink-on-paper);
  border-radius: var(--radius-l);
  border: 1px solid rgba(244, 237, 225, 0.16);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  scroll-margin-top: var(--pv-anchor-offset);
}

.page-privacy .pv-section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 22px clamp(20px, 4vw, 38px) 16px;
  border-bottom: 1px solid var(--line-on-paper);
  cursor: pointer;
  list-style: none;
}

.page-privacy .pv-section-head::-webkit-details-marker {
  display: none;
}

.page-privacy .pv-section-head::after {
  content: "";
  flex: none;
  align-self: center;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--ink-soft-on-paper);
  border-bottom: 2px solid var(--ink-soft-on-paper);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-privacy .pv-section[open] .pv-section-head::after {
  transform: rotate(-135deg);
}

.page-privacy .pv-section-head:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: -4px;
}

.page-privacy .pv-section-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--pv-ink-accent);
  flex: none;
}

.page-privacy .pv-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.2rem, 2.5vw, 1.62rem);
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--c-ink);
}

.page-privacy .pv-section-body {
  padding: 4px clamp(20px, 4vw, 38px) clamp(24px, 4vw, 34px);
}

.page-privacy .pv-section-body > .pv-lead {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: clamp(0.98rem, 1.7vw, 1.04rem);
  line-height: 1.78;
  color: var(--ink-on-paper);
}

.page-privacy .pv-list {
  counter-reset: pv-item;
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  max-width: 68ch;
  list-style: none;
}

.page-privacy .pv-list > li {
  counter-increment: pv-item;
  position: relative;
  padding-left: 38px;
  font-size: clamp(0.94rem, 1.6vw, 1rem);
  line-height: 1.78;
  color: var(--ink-soft-on-paper);
}

.page-privacy .pv-list > li::before {
  content: counter(pv-item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--pv-ink-accent);
  opacity: 0.85;
}

.page-privacy .pv-list > li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 20px;
  height: 1px;
  background: var(--line-on-paper);
}

.page-privacy .pv-section-body a {
  color: var(--pv-ink-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 180ms var(--ease);
}

.page-privacy .pv-section-body a:hover,
.page-privacy .pv-section-body a:focus-visible {
  color: var(--c-ink);
}

.page-privacy .pv-section-body a:focus-visible,
.page-privacy .pv-nav-link:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 中等屏幕 ---------- */

@media (min-width: 720px) {
  .page-privacy .pv-section-head {
    padding-top: 26px;
    padding-bottom: 18px;
  }
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 68px);
  }

  .page-privacy .pv-toc {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }

  .page-privacy .pv-toc-list {
    flex-direction: column;
    flex-wrap: nowrap;
    overflow: visible;
    padding-bottom: 0;
    gap: 2px;
  }

  .page-privacy .pv-nav-link {
    white-space: normal;
    align-items: flex-start;
  }

  .page-privacy .pv-toc-panel {
    padding: 22px 22px 24px;
  }
}

@media (min-width: 1200px) {
  .page-privacy .pv-layout {
    grid-template-columns: 264px minmax(0, 1fr);
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-privacy *,
  .page-privacy *::before,
  .page-privacy *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}