.page-privacy {
  --pv-measure: 720px;
  --pv-railcol: 96px;
  --pv-gap: clamp(28px, 5vw, 72px);
  --pv-line: rgba(61, 245, 208, 0.22);
  --pv-line-soft: rgba(61, 245, 208, 0.1);
  display: block;
  background: var(--ink-deep);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-privacy .pv-crumb {
  padding-top: clamp(16px, 3vw, 26px);
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 0;
  border-bottom: 2px solid var(--cyan);
  background:
    repeating-linear-gradient(0deg, rgba(61, 245, 208, 0.045) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(90deg, rgba(61, 245, 208, 0.045) 0 1px, transparent 1px 8px),
    linear-gradient(165deg, var(--ink-deep) 0%, var(--grass) 100%);
}

.page-privacy .pv-hero-grid {
  display: grid;
  gap: 16px;
  max-width: 900px;
}

.page-privacy .pv-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.05rem, 5.6vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-privacy .pv-lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-privacy .pv-hero-kv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-kv {
  padding: 14px 16px;
  border: 1px solid var(--pv-line);
  background: rgba(5, 20, 15, 0.6);
}

.page-privacy .pv-kv-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-privacy .pv-kv-label {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-privacy .pv-hero-fig {
  margin: clamp(28px, 5vw, 52px) 0 0;
}

/* ---------- 主体布局 ---------- */
.page-privacy .pv-body {
  padding: clamp(34px, 6vw, 62px) 0 clamp(48px, 8vw, 92px);
}

.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: 26px;
  align-items: start;
}

/* ---------- 章节编号轨道（移动端：横向条） ---------- */
.page-privacy .pv-rail {
  position: sticky;
  top: var(--bar-h);
  z-index: 12;
  padding: 10px 12px;
  border: 1px solid var(--pv-line);
  background: rgba(11, 36, 27, 0.96);
}

.page-privacy .pv-rail-title {
  display: none;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-privacy .pv-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .pv-rail-item {
  flex: 0 0 auto;
}

.page-privacy .pv-rail-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 0.82rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-mid) ease, border-color var(--t-mid) ease,
    background-color var(--t-mid) ease;
}

.page-privacy .pv-rail-link .mono {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-privacy .pv-rail-link:hover,
.page-privacy .pv-rail-link:focus-visible {
  color: var(--cyan);
  border-color: var(--pv-line);
  background: rgba(61, 245, 208, 0.07);
}

/* ---------- 正文 ---------- */
.page-privacy .pv-article {
  min-width: 0;
}

.page-privacy .pv-sec {
  padding: clamp(32px, 5vw, 56px) 0;
  border-top: 1px solid var(--pv-line);
  scroll-margin-top: calc(var(--bar-h) + 92px);
}

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

.page-privacy .pv-sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-privacy .pv-sec-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.4vw, 1.55rem);
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-privacy .pv-sec-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.2vw, 2.05rem);
  line-height: 1.26;
  color: var(--white);
}

.page-privacy .pv-article h3 {
  margin: 30px 0 12px;
  padding-left: 10px;
  border-left: 3px solid var(--amber);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-privacy .pv-article p {
  margin: 0 0 1.1em;
  max-width: var(--pv-measure);
  font-size: clamp(1rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: var(--white);
}

.page-privacy .pv-article a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 行式条目 ---------- */
.page-privacy .pv-rows {
  margin: 0 0 1.2em;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-row {
  padding: 18px 0;
  border-bottom: 1px solid var(--pv-line-soft);
  outline: none;
  transition: background-color var(--t-fast) ease;
}

.page-privacy .pv-row:focus-visible {
  background: rgba(61, 245, 208, 0.05);
}

.page-privacy .pv-row-key {
  display: inline-block;
  margin-bottom: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--pv-line);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .pv-row-val p {
  margin: 0;
}

.page-privacy .pv-tip {
  display: block;
  margin-top: 8px;
  padding-left: 9px;
  border-left: 2px solid transparent;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
  transition: color var(--t-mid) ease, border-color var(--t-mid) ease;
}

.page-privacy .pv-row:hover .pv-tip,
.page-privacy .pv-row:focus-within .pv-tip {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

/* ---------- 使用目的列表 ---------- */
.page-privacy .pv-use {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-use li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--pv-line);
}

.page-privacy .pv-use-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--amber);
}

.page-privacy .pv-use-body strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--white);
}

.page-privacy .pv-use-body p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 暖纸反相卡（用户权利） ---------- */
.page-privacy .pv-paper {
  margin: clamp(24px, 4vw, 40px) 0;
  padding: clamp(20px, 4vw, 38px);
  border: 2px solid var(--ink-deep);
  background: var(--paper);
  color: var(--ink-deep);
  box-shadow: var(--shadow-hard);
}

.page-privacy .pv-paper .pv-sec-head h2,
.page-privacy .pv-paper h2 {
  color: var(--ink-deep);
}

.page-privacy .pv-paper .pv-sec-num {
  color: var(--alert);
}

.page-privacy .pv-paper h3 {
  color: var(--grass);
  border-left-color: var(--grass);
}

.page-privacy .pv-paper p {
  color: #16261f;
}

.page-privacy .pv-paper a {
  color: var(--cyan-deep);
}

.page-privacy .pv-rights {
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--paper-dim);
}

.page-privacy .pv-rights li {
  padding: 14px 0;
  border-bottom: 1px solid var(--paper-dim);
  font-size: 0.97rem;
  line-height: 1.75;
  color: #16261f;
}

.page-privacy .pv-rights strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink-deep);
}

.page-privacy .pv-steps {
  margin: 0 0 1.1em;
  padding: 0;
  list-style: none;
  counter-reset: pvstep;
}

.page-privacy .pv-steps li {
  position: relative;
  counter-increment: pvstep;
  margin-bottom: 12px;
  padding-left: 46px;
  font-size: 0.97rem;
  line-height: 1.75;
  color: #16261f;
}

.page-privacy .pv-steps li::before {
  content: counter(pvstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 2px 7px;
  border: 1px solid var(--cyan-deep);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--cyan-deep);
}

/* ---------- 延伸入口 ---------- */
.page-privacy .pv-next {
  padding: clamp(36px, 6vw, 66px) 0;
  border-top: 2px solid var(--cyan);
  background:
    repeating-linear-gradient(90deg, rgba(61, 245, 208, 0.04) 0 1px, transparent 1px 8px),
    var(--grass);
}

.page-privacy .pv-next-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-next-list a {
  display: block;
  padding: 20px;
  border: 1px solid var(--pv-line);
  background: rgba(5, 20, 15, 0.5);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.02rem;
  text-decoration: none;
  transition: transform var(--t-fast) ease, border-color var(--t-fast) ease,
    background-color var(--t-fast) ease;
}

.page-privacy .pv-next-list a span {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-privacy .pv-next-list a:hover,
.page-privacy .pv-next-list a:focus-visible {
  transform: translate(-3px, -3px);
  border-color: var(--cyan);
  background: rgba(61, 245, 208, 0.09);
}

/* ---------- 回到顶部 ---------- */
.page-privacy .pv-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 2px solid var(--cyan);
  background: var(--ink-deep);
  color: var(--cyan);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  box-shadow: var(--shadow-hard);
  transition: transform var(--t-fast) ease, background-color var(--t-fast) ease;
}

.page-privacy .pv-top:hover,
.page-privacy .pv-top:focus-visible {
  transform: translate(-2px, -2px);
  background: var(--grass);
}

@supports (animation-timeline: scroll()) {
  .page-privacy .pv-top {
    animation: pv-top-in linear both;
    animation-timeline: scroll(root);
    animation-range: 0 320px;
  }
}

@keyframes pv-top-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 章节编号随滚动高亮 ---------- */
@supports (animation-timeline: view()) {
  .page-privacy .pv-layout {
    timeline-scope: --pv-1, --pv-2, --pv-3, --pv-4, --pv-5, --pv-6;
  }
  .page-privacy #pv-scope { view-timeline-name: --pv-1; }
  .page-privacy #pv-info { view-timeline-name: --pv-2; }
  .page-privacy #pv-use { view-timeline-name: --pv-3; }
  .page-privacy #pv-keep { view-timeline-name: --pv-4; }
  .page-privacy #pv-rights-sec { view-timeline-name: --pv-5; }
  .page-privacy #pv-update { view-timeline-name: --pv-6; }

  .page-privacy .pv-rail-link {
    animation: pv-rail-activate linear both;
    animation-range: contain 0% contain 100%;
  }
  .page-privacy .pv-rail-item:nth-child(1) .pv-rail-link { animation-timeline: --pv-1; }
  .page-privacy .pv-rail-item:nth-child(2) .pv-rail-link { animation-timeline: --pv-2; }
  .page-privacy .pv-rail-item:nth-child(3) .pv-rail-link { animation-timeline: --pv-3; }
  .page-privacy .pv-rail-item:nth-child(4) .pv-rail-link { animation-timeline: --pv-4; }
  .page-privacy .pv-rail-item:nth-child(5) .pv-rail-link { animation-timeline: --pv-5; }
  .page-privacy .pv-rail-item:nth-child(6) .pv-rail-link { animation-timeline: --pv-6; }
}

@keyframes pv-rail-activate {
  from {
    color: var(--mist);
    background-color: transparent;
    border-left-color: transparent;
  }
  to {
    color: var(--cyan);
    background-color: rgba(61, 245, 208, 0.09);
    border-left-color: var(--cyan);
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-privacy .pv-row {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-privacy .pv-row-key {
    margin-bottom: 0;
    margin-top: 4px;
  }

  .page-privacy .pv-rights li {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-privacy .pv-rights strong {
    margin-bottom: 0;
  }

  .page-privacy .pv-next-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 桌面：左侧章节轨道 + 窄栏长文 ---------- */
@media (min-width: 1024px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-railcol) minmax(0, var(--pv-measure));
    justify-content: center;
    column-gap: var(--pv-gap);
    row-gap: 0;
  }

  .page-privacy .pv-rail {
    top: calc(var(--bar-h) + 28px);
    padding: 4px 0 4px 14px;
    border: 0;
    border-left: 2px solid var(--pv-line);
    background: transparent;
    max-height: calc(100vh - var(--bar-h) - 56px);
  }

  .page-privacy .pv-rail-title {
    display: block;
  }

  .page-privacy .pv-rail-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
  }

  .page-privacy .pv-rail-link {
    width: 100%;
    padding: 8px 10px;
    white-space: normal;
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .page-privacy .pv-rail-link .mono {
    font-size: 0.7rem;
  }

  .page-privacy .pv-sec {
    scroll-margin-top: calc(var(--bar-h) + 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-top,
  .page-privacy .pv-rail-link,
  .page-privacy .pv-next-list a,
  .page-privacy .pv-tip {
    animation: none !important;
    transition: none !important;
  }
}