.page-privacy {
  --privacy-measure: 45rem;
  --privacy-ink: #232931;
  --privacy-ink-soft: #3A424C;
  --privacy-quiet: #5C646F;
  --privacy-paper-line: rgba(20, 24, 29, 0.15);
  position: relative;
  display: block;
  padding-bottom: clamp(48px, 8vw, 104px);
  background:
    radial-gradient(880px 520px at 10% -8%, rgba(0, 229, 255, 0.12), transparent 62%),
    radial-gradient(760px 480px at 94% 2%, rgba(155, 93, 229, 0.12), transparent 60%),
    var(--ink);
}

/* ---------- 页头 ---------- */
.page-privacy .privacy-masthead {
  position: relative;
  padding: clamp(26px, 5vw, 54px) 0 clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--line-steel);
}

.page-privacy .privacy-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(220px, 42%);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 60%, transparent);
}

.page-privacy .privacy-masthead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(16px, 3vw, 30px);
}

.page-privacy .privacy-version {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .privacy-title {
  margin: 0;
  font-size: clamp(44px, 11vw, 104px);
  line-height: 0.98;
  letter-spacing: 0.02em;
}

.page-privacy .privacy-lede {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.95;
  color: rgba(242, 237, 228, 0.82);
}

/* ---------- 布局 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: clamp(26px, 4vw, 48px);
}

/* ---------- 纸面正文 ---------- */
.page-privacy .privacy-paper {
  position: relative;
  max-width: var(--privacy-measure);
  margin-inline: auto;
  padding: clamp(24px, 5vw, 56px) clamp(18px, 4.6vw, 50px);
  background: var(--paper);
  color: var(--privacy-ink);
  border: 1px solid var(--line-paper);
  box-shadow: var(--shadow-paper);
}

.page-privacy .privacy-paper::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--violet) 40%, var(--lava) 74%, var(--clay) 100%);
}

.page-privacy .privacy-paper p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.92;
  color: var(--privacy-ink-soft);
}

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

.page-privacy .privacy-paper a {
  color: var(--teal-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .privacy-paper a:hover,
.page-privacy .privacy-paper a:focus-visible {
  color: var(--clay-ink);
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-sec {
  padding-top: clamp(26px, 4vw, 42px);
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--privacy-paper-line);
  scroll-margin-top: 96px;
}

.page-privacy .privacy-sec:first-of-type {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.page-privacy .privacy-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-privacy .privacy-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--clay-ink);
}

.page-privacy .privacy-sec__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .privacy-sec:target .privacy-sec__title {
  color: var(--teal-ink);
}

.page-privacy .privacy-sec:target .privacy-num {
  color: var(--teal-ink);
}

/* ---------- 信息分类条目 ---------- */
.page-privacy .privacy-items {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-privacy .privacy-item {
  padding: 13px 15px 14px;
  border-left: 2px solid var(--cyan);
  background: rgba(27, 32, 40, 0.045);
}

.page-privacy .privacy-item--cyan { border-left-color: var(--teal-ink); }
.page-privacy .privacy-item--violet { border-left-color: var(--violet); }
.page-privacy .privacy-item--moss { border-left-color: var(--moss); }
.page-privacy .privacy-item--clay { border-left-color: var(--clay); }

.page-privacy .privacy-item h3 {
  margin: 0 0 5px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-privacy .privacy-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.86;
}

/* ---------- 用途章节 ---------- */
.page-privacy .privacy-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-privacy .privacy-uses {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-privacy .privacy-uses li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--privacy-ink-soft);
}

.page-privacy .privacy-uses li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-privacy .privacy-uses strong {
  color: var(--ink);
  font-weight: 700;
}

.page-privacy .privacy-figure {
  margin: 4px 0 0;
}

.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--privacy-paper-line);
  background: var(--slate-deep);
}

.page-privacy .privacy-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--privacy-quiet);
}

/* ---------- 保存期限图 ---------- */
.page-privacy .privacy-diagram {
  display: block;
  width: 100%;
  height: auto;
  margin: 18px 0 20px;
  padding: 10px 6px 6px;
  border-top: 1px solid var(--privacy-paper-line);
  border-bottom: 1px solid var(--privacy-paper-line);
}

.page-privacy .privacy-diagram text {
  font-family: var(--font-sans);
  font-size: 13px;
  fill: var(--privacy-ink);
}

.page-privacy .privacy-diagram .privacy-diagram__val {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--privacy-quiet);
}

/* ---------- 权利操作路径 ---------- */
.page-privacy .privacy-rights {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-privacy .privacy-rights li {
  padding: 13px 0;
  border-bottom: 1px dashed var(--privacy-paper-line);
}

.page-privacy .privacy-rights li:first-child {
  border-top: 1px dashed var(--privacy-paper-line);
}

.page-privacy .privacy-rights__k {
  display: inline-block;
  margin-bottom: 5px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: var(--slate);
}

.page-privacy .privacy-rights p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.86;
}

/* ---------- 章节索引 ---------- */
.page-privacy .privacy-rail {
  order: -1;
  padding: 14px 12px 16px;
  border: 1px solid var(--line-steel);
  background: rgba(27, 32, 40, 0.62);
}

.page-privacy .privacy-rail__title {
  margin: 0 0 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-steel);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--graphite);
}

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

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 8px 7px 10px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(242, 237, 228, 0.74);
  text-decoration: none;
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease;
}

.page-privacy .privacy-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--graphite);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--cyan-soft);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
  outline: none;
}

.page-privacy .privacy-rail__link:hover .privacy-rail__num,
.page-privacy .privacy-rail__link:focus-visible .privacy-rail__num {
  color: var(--cyan);
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-privacy .privacy-masthead__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    gap: 28px;
  }

  .page-privacy .privacy-item {
    padding: 15px 18px 16px;
  }

  .page-privacy .privacy-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 26px;
    align-items: start;
  }
}

/* ---------- 桌面：正文与浮动索引 ---------- */
@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-privacy .privacy-rail {
    order: 0;
    position: sticky;
    top: 96px;
  }

  .page-privacy .privacy-paper {
    margin-inline: 0 auto;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__link {
    transition: none;
  }
}