.page-privacy {
  --pv-rail-w: 208px;
  --pv-measure: 36em;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

/* 首屏 */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(24px, 5vw, 44px) 0 clamp(36px, 7vw, 76px);
}
.page-privacy .pv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(112deg, rgba(111, 183, 160, 0.18) 0%, rgba(111, 183, 160, 0) 46%),
    linear-gradient(292deg, rgba(242, 162, 58, 0.15) 0%, rgba(242, 162, 58, 0) 40%),
    var(--c-ink-800);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
}
.page-privacy .pv-hero > .container {
  position: relative;
  z-index: 1;
}
.page-privacy .pv-hero .breadcrumbs {
  margin-bottom: clamp(20px, 4vw, 34px);
}
.page-privacy .pv-title {
  margin: 0 0 18px;
  max-width: 15em;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-frost);
}
.page-privacy .pv-lead {
  max-width: 34em;
  margin: 0;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.85;
  color: var(--c-frost);
  opacity: 0.92;
}
.page-privacy .pv-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-slate);
}
.page-privacy .pv-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-privacy .pv-meta-item::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--c-amber);
}

/* 分栏骨架 */
.page-privacy .pv-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(28px, 6vw, 60px) 0 clamp(48px, 8vw, 96px);
}
.page-privacy .pv-rail {
  position: sticky;
  top: var(--header-h);
  z-index: 3;
  margin: 0 calc(var(--gutter) * -1);
  padding: 10px var(--gutter);
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-privacy .pv-rail-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-slate);
}
.page-privacy .pv-rail-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
}
.page-privacy .pv-rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 12px;
  white-space: nowrap;
  text-decoration: none;
  font-size: 14px;
  color: var(--c-frost);
  border: 1px solid var(--c-ink-700);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}
.page-privacy .pv-rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-amber);
}
.page-privacy .pv-rail-link:hover,
.page-privacy .pv-rail-link:focus-visible {
  color: var(--c-amber);
  border-color: var(--c-amber);
  background: var(--surface);
}

/* 条款正文 */
.page-privacy .pv-body {
  min-width: 0;
}
.page-privacy .pv-section {
  scroll-margin-top: calc(var(--header-h) + 16px);
  padding: clamp(26px, 4vw, 40px) 0;
  border-top: 1px solid var(--line);
}
.page-privacy .pv-section:first-child {
  padding-top: 0;
  border-top: 0;
}
.page-privacy .pv-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}
.page-privacy .pv-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-amber);
}
.page-privacy .pv-h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-frost);
}
.page-privacy .pv-p {
  max-width: var(--pv-measure);
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-frost);
}
.page-privacy .pv-p:last-child {
  margin-bottom: 0;
}

/* 定义块 */
.page-privacy .pv-note {
  max-width: 42em;
  margin: 26px 0;
  padding: clamp(18px, 3vw, 26px);
  background: var(--c-paper);
  color: var(--c-ink-900);
  border-left: 4px solid var(--c-amber);
}
.page-privacy .pv-note dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-clay);
}
.page-privacy .pv-note dd {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink-900);
}
.page-privacy .pv-note dd:last-child {
  margin-bottom: 0;
}

/* 图片 */
.page-privacy .pv-figure {
  max-width: 42em;
  margin: 26px 0;
  border: 1px solid var(--c-ink-700);
}
.page-privacy .pv-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-privacy .pv-figure .media-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--c-ink-700);
  background: var(--c-ink-800);
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-slate);
}

/* 数据流示意 */
.page-privacy .pv-diagram {
  max-width: 42em;
  margin: 26px 0;
  padding: 20px 18px 14px;
  background: var(--c-ink-800);
  border: 1px solid var(--c-ink-700);
}
.page-privacy .pv-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-privacy .pv-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--c-slate);
}
.page-privacy .pv-legend li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.page-privacy .pv-dot {
  width: 8px;
  height: 8px;
  background: var(--c-celadon);
}
.page-privacy .pv-dot--clay {
  background: var(--c-clay);
}
.page-privacy .pv-dot--slate {
  background: var(--c-slate);
}

/* 折叠说明 */
.page-privacy .pv-details {
  max-width: 42em;
  margin: 24px 0;
  background: var(--surface);
  border: 1px solid var(--c-ink-700);
}
.page-privacy .pv-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 12px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  color: var(--c-frost);
  transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.page-privacy .pv-details summary::-webkit-details-marker {
  display: none;
}
.page-privacy .pv-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-amber);
}
.page-privacy .pv-details[open] summary::after {
  content: "–";
}
.page-privacy .pv-details summary:hover {
  background: var(--c-ink-800);
  color: var(--c-amber);
}
.page-privacy .pv-details-body {
  padding: 4px 18px 18px;
  border-top: 1px solid var(--c-ink-700);
}

/* 列表 */
.page-privacy .pv-list {
  display: grid;
  gap: 10px;
  max-width: 40em;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-privacy .pv-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-frost);
}
.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--c-amber);
}

/* 用途对照行 */
.page-privacy .pv-rows {
  max-width: 46em;
  margin: 24px 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-ink-700);
}
.page-privacy .pv-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-ink-700);
}
.page-privacy .pv-row-key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-celadon);
}
.page-privacy .pv-row-val {
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-frost);
}
.page-privacy .pv-row-tag {
  justify-self: start;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-slate);
  border: 1px solid var(--c-ink-700);
}
.page-privacy .pv-row-tag--amber {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

/* 联系信息 */
.page-privacy .pv-contact {
  max-width: 42em;
  margin: 26px 0 14px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-ink-700);
}
.page-privacy .pv-contact .contact-item {
  display: grid;
  gap: 8px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-ink-700);
}
.page-privacy .pv-contact .contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-slate);
}
.page-privacy .pv-contact .contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-frost);
  overflow-wrap: anywhere;
}
.page-privacy .copy-btn {
  justify-self: start;
  min-height: 44px;
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-celadon);
  background: transparent;
  border: 1px solid var(--c-celadon);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.page-privacy .copy-btn:hover {
  color: var(--c-ink-900);
  background: var(--c-celadon);
}
.page-privacy .copy-btn[data-copied] {
  color: var(--c-ink-900);
  background: var(--c-celadon);
  border-color: var(--c-celadon);
}
.page-privacy .pv-note-small {
  max-width: 36em;
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* 页内去向 */
.page-privacy .pv-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-privacy .pv-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-celadon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.page-privacy .pv-links a::after {
  content: "→";
  margin-left: 8px;
  color: var(--c-amber);
}
.page-privacy .pv-links a:hover,
.page-privacy .pv-links a:focus-visible {
  color: var(--c-frost);
  border-bottom-color: var(--c-celadon);
}

/* 中等屏幕 */
@media (min-width: 640px) {
  .page-privacy .pv-row {
    grid-template-columns: 8.5em minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 16px;
  }
  .page-privacy .pv-contact .contact-item {
    grid-template-columns: 7.5em minmax(0, 1fr) auto;
    align-items: center;
    gap: 16px;
  }
}

/* 桌面分栏：左索引吸顶 */
@media (min-width: 900px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }
  .page-privacy .pv-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    margin: 0;
    padding: 0;
    background: transparent;
    border-bottom: 0;
    border-left: 1px solid var(--c-ink-700);
    overflow: visible;
  }
  .page-privacy .pv-rail-title {
    padding-left: 16px;
  }
  .page-privacy .pv-rail-list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }
  .page-privacy .pv-rail-link {
    display: flex;
    width: 100%;
    padding: 0 12px 0 16px;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    color: var(--c-frost);
  }
  .page-privacy .pv-rail-link:hover,
  .page-privacy .pv-rail-link:focus-visible {
    border-left-color: var(--c-amber);
    background: var(--surface);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-rail-link,
  .page-privacy .copy-btn,
  .page-privacy .pv-links a,
  .page-privacy .pv-details summary {
    transition: none;
  }
}

@media print {
  .page-privacy {
    background: #ffffff;
    color: #111111;
  }
  .page-privacy .pv-hero {
    padding: 0 0 12px;
    border-bottom: 2px solid #111111;
  }
  .page-privacy .pv-hero::before,
  .page-privacy .pv-rail,
  .page-privacy .pv-diagram,
  .page-privacy .pv-figure img,
  .page-privacy .copy-btn,
  .page-privacy .pv-links a::after {
    display: none;
  }
  .page-privacy .pv-title,
  .page-privacy .pv-lead,
  .page-privacy .pv-h2,
  .page-privacy .pv-p,
  .page-privacy .pv-row-val,
  .page-privacy .pv-list li {
    color: #111111;
  }
  .page-privacy .pv-layout {
    display: block;
    padding: 12px 0 0;
  }
  .page-privacy .pv-section {
    break-inside: avoid;
    padding: 14px 0;
    border-top: 1px solid #999999;
  }
  .page-privacy .pv-num {
    color: #111111;
  }
  .page-privacy .pv-note {
    background: #f4f4f4;
    border-left: 3px solid #111111;
    color: #111111;
  }
}