.page-privacy {
  --pp-read: 820px;
  padding-bottom: 72px;
  background: var(--ink);
}

.page-privacy .breadcrumb {
  padding: 20px 0 0;
}

/* 首屏 */
.page-privacy .pp-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 40px;
  border-bottom: 1px solid var(--line);
  background: var(--ink-deep);
}

.page-privacy .pp-hero-media {
  position: absolute;
  inset: 0;
  opacity: 0.4;
}

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

.page-privacy .pp-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 26, 21, 0.4), rgba(5, 26, 21, 0.94));
  pointer-events: none;
}

.page-privacy .pp-hero-inner {
  position: relative;
  z-index: 1;
}

.page-privacy .pp-hero h1 {
  margin: 12px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(28px, 7.2vw, 56px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-privacy .pp-lead {
  margin: 20px 0 0;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
}

.page-privacy .pp-version {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-version-text {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

/* 主体布局 */
.page-privacy .pp-wrap {
  padding-top: 32px;
}

.page-privacy .pp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

/* 目录 */
.page-privacy .pp-toc {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .pp-toc-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--neon);
}

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

.page-privacy .pp-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 8px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mute);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .pp-toc-list a:hover,
.page-privacy .pp-toc-list a:focus-visible {
  color: var(--fog);
  background: var(--raise);
  border-left-color: var(--neon);
  outline: none;
}

.page-privacy .pp-toc-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--dim);
}

.page-privacy .pp-toc-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

.page-privacy .pp-toc-foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon-32);
}

.page-privacy .pp-toc-foot a:hover {
  border-bottom-color: var(--neon);
}

/* 阅读栏 */
.page-privacy .pp-body {
  min-width: 0;
  max-width: var(--pp-read);
}

.page-privacy .pp-sec {
  padding: 30px 0 34px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-sec:first-child {
  border-top: none;
  padding-top: 6px;
}

.page-privacy .pp-sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-privacy .pp-sec-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(30px, 8vw, 48px);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--dim);
  transition: color var(--dur) var(--ease);
}

.page-privacy .pp-sec:target .pp-sec-num {
  color: var(--neon);
}

.page-privacy .pp-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 4.6vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--fog);
}

.page-privacy .pp-sec h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--fog);
}

.page-privacy .pp-sec p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--fog);
}

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

.page-privacy .pp-sec a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon-32);
}

.page-privacy .pp-sec a:hover,
.page-privacy .pp-sec a:focus-visible {
  border-bottom-color: var(--neon);
  outline: none;
}

/* 信息类型矩阵 */
.page-privacy .pp-matrix {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-privacy .pp-matrix-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--neon-32);
  background: var(--panel);
}

.page-privacy .pp-matrix-item p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

/* 折叠明细 */
.page-privacy .pp-details {
  margin-top: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .pp-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--neon);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .pp-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--neon);
}

.page-privacy .pp-details[open] summary::after {
  content: "–";
}

.page-privacy .pp-details summary:focus-visible {
  outline: 1px solid var(--neon);
  outline-offset: -1px;
}

.page-privacy .pp-details-body {
  padding: 4px 18px 18px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-details-body p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

/* 要点列表 */
.page-privacy .pp-list {
  margin: 18px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-privacy .pp-list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fog);
}

.page-privacy .pp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 12px;
  height: 1px;
  background: var(--neon);
}

.page-privacy .pp-list strong {
  color: var(--fog);
  font-weight: 700;
}

/* 双栏对照 */
.page-privacy .pp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 16px 0 18px;
}

.page-privacy .pp-split-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--raise);
}

.page-privacy .pp-split-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

/* 延伸入口 */
.page-privacy .pp-related {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-related-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  text-decoration: none;
  border-bottom-width: 1px;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pp-related-link:hover,
.page-privacy .pp-related-link:focus-visible {
  background: var(--raise);
  border-color: var(--neon-32);
  outline: none;
}

.page-privacy .pp-related-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-privacy .pp-related-text {
  font-size: 14px;
  color: var(--mute);
}

/* 回到顶部 */
.page-privacy .pp-foot {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: flex-end;
}

.page-privacy .pp-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--neon-32);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pp-top:hover,
.page-privacy .pp-top:focus-visible {
  background: var(--neon-08);
  border-color: var(--neon);
  outline: none;
}

@media (min-width: 700px) {
  .page-privacy .pp-wrap {
    padding-top: 44px;
  }

  .page-privacy .pp-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-privacy .pp-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-privacy .pp-related {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-privacy .pp-related-link {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

@media (min-width: 1024px) {
  .page-privacy .pp-hero {
    padding: 48px 0 56px;
  }

  .page-privacy .pp-layout {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-privacy .pp-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-privacy .pp-sec {
    padding: 40px 0 44px;
  }

  .page-privacy .pp-sec-num {
    font-size: 56px;
  }

  .page-privacy .pp-sec-head {
    gap: 20px;
    margin-bottom: 20px;
  }

  .page-privacy .pp-details summary {
    padding: 16px 22px;
  }

  .page-privacy .pp-details-body {
    padding: 4px 22px 22px;
  }

  .page-privacy .pp-matrix-item,
  .page-privacy .pp-split-item {
    padding: 20px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-toc-list a,
  .page-privacy .pp-related-link,
  .page-privacy .pp-top,
  .page-privacy .pp-sec-num {
    transition: none;
  }
}