/* ===== 数据与隐私 · 页面专属样式（作用域 .page-privacy） ===== */
.page-privacy {
  --pv-gold-ink: #8A6520;
  --pv-rule: rgba(201, 162, 74, 0.38);
  --pv-paper-line: rgba(27, 37, 48, 0.16);
  padding-bottom: 84px;
}

.page-privacy .breadcrumb {
  margin-top: 22px;
}

.page-privacy .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

/* ---- 首屏 ---- */
.page-privacy .privacy-hero {
  position: relative;
  margin-top: 20px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 96px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--harbor) 0%, var(--ink) 58%, var(--indigo) 100%);
}

.page-privacy .privacy-hero-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(104deg, rgba(11, 27, 43, 0.95) 24%, rgba(11, 27, 43, 0.68) 58%, rgba(42, 30, 74, 0.56) 100%);
}

.page-privacy .privacy-hero > *:not(.privacy-hero-art) {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero h1 {
  margin: 10px 0 0;
  max-width: 20ch;
  font-size: clamp(27px, 6.4vw, 50px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-hero .lede {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 24px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-privacy .hero-facts li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

/* ---- 主体：目录 + 正文 ---- */
.page-privacy .privacy-layout {
  display: grid;
  gap: 36px;
  margin-top: 44px;
}

.page-privacy .toc-heading {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold-deep);
}

.page-privacy .toc-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
}

.page-privacy .toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  color: var(--muted);
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.page-privacy .toc-link:hover,
.page-privacy .toc-link:focus-visible {
  color: var(--text);
  border-color: var(--gold-deep);
  background: var(--harbor);
}

.page-privacy .toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-privacy .privacy-section {
  padding-bottom: 44px;
  margin-bottom: 44px;
  border-bottom: 1px dashed var(--pv-rule);
}

.page-privacy .privacy-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

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

.page-privacy .section-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-privacy .section-title {
  margin: 0;
  font-size: clamp(20px, 4vw, 30px);
  font-weight: 800;
  line-height: 1.38;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-section:target .section-title {
  color: var(--gold);
}

.page-privacy .section-text {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .section-tail {
  margin: 20px 0 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .section-tail a {
  color: var(--sky);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 189, 248, 0.4);
}

.page-privacy .section-tail a:hover {
  color: var(--pearl);
  border-bottom-color: var(--pearl);
}

/* ---- 01 信息清单 ---- */
.page-privacy .info-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--line-soft);
}

.page-privacy .info-item {
  padding: 18px 18px 20px;
  background: var(--glass-deep);
}

.page-privacy .info-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-privacy .info-name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-privacy .info-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---- 02 用途 ---- */
.page-privacy .purpose-grid {
  display: grid;
  gap: 14px;
}

.page-privacy .purpose-card {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold-deep);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(20, 48, 74, 0.55), rgba(11, 27, 43, 0.6));
}

.page-privacy .purpose-card h3 {
  margin: 0 0 10px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--pearl);
}

.page-privacy .purpose-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---- 03 纸感存档区 ---- */
.page-privacy .paper-zone {
  padding: 20px 18px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: var(--shadow-card);
}

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

.page-privacy .retain-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--pv-paper-line);
}

.page-privacy .retain-item:first-child {
  padding-top: 0;
}

.page-privacy .retain-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-privacy .retain-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 6px;
}

.page-privacy .retain-name {
  font-size: 15.5px;
  font-weight: 700;
}

.page-privacy .retain-term {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--pv-gold-ink);
}

.page-privacy .retain-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(27, 37, 48, 0.72);
}

.page-privacy .paper-zone .disclosure {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--pv-paper-line);
}

.page-privacy .paper-zone .disclosure-summary {
  color: var(--paper-ink);
  font-weight: 600;
  font-size: 14.5px;
  cursor: pointer;
}

.page-privacy .paper-zone .disclosure-panel p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(27, 37, 48, 0.78);
}

/* ---- 04 选择权 ---- */
.page-privacy .choice-list {
  display: grid;
  gap: 14px;
}

.page-privacy .choice-item {
  position: relative;
  padding: 18px 18px 44px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--pearl);
  border-radius: var(--radius-lg);
  background: var(--glass);
}

.page-privacy .choice-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-privacy .choice-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-privacy .choice-time {
  position: absolute;
  left: 18px;
  bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* ---- 05 联系 ---- */
.page-privacy .contact-panel {
  display: grid;
  gap: 22px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(14, 58, 58, 0.6), rgba(11, 27, 43, 0.72));
}

.page-privacy .contact-meta {
  display: grid;
  gap: 14px;
}

.page-privacy .meta-key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-privacy .meta-val {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-privacy .contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-privacy .copy-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 27, 43, 0.6);
}

.page-privacy .copy-value {
  font-size: 13.5px;
  color: var(--pearl);
}

.page-privacy .copy-btn {
  font-family: var(--font-sans);
  font-size: 12.5px;
  color: var(--sky);
  background: none;
  border: 0;
  padding: 0 2px;
  cursor: pointer;
}

.page-privacy .copy-btn:hover {
  color: var(--pearl);
}

/* ---- 响应式 ---- */
@media (min-width: 720px) {
  .page-privacy .privacy-hero {
    padding: 104px 46px 34px;
  }

  .page-privacy .purpose-grid,
  .page-privacy .choice-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .paper-zone,
  .page-privacy .contact-panel {
    padding: 26px 28px;
  }

  .page-privacy .info-item {
    padding: 20px 24px 22px;
  }

  .page-privacy .contact-panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-privacy .privacy-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 72px;
    margin-top: 62px;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    padding-left: 20px;
    border-left: 1px solid var(--pv-rule);
  }

  .page-privacy .toc-heading {
    margin-bottom: 14px;
  }

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

  .page-privacy .toc-link {
    justify-content: flex-start;
    width: 100%;
    padding: 9px 8px;
    border: 0;
    border-radius: var(--radius);
    background: none;
    white-space: normal;
  }

  .page-privacy .toc-link:hover,
  .page-privacy .toc-link:focus-visible {
    background: rgba(20, 48, 74, 0.55);
  }

  .page-privacy .privacy-body {
    max-width: 78ch;
  }

  .page-privacy .privacy-section {
    padding-bottom: 56px;
    margin-bottom: 56px;
  }

  .page-privacy .privacy-hero {
    padding: 120px 64px 40px;
    min-height: 380px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .toc-link {
    transition: none;
  }
}