/* ============================================================
   隐私中心 /privacy-center/ — 浅底长文阅读模式
   作用域：.page-privacy
   ============================================================ */

.page-privacy {
  --pv-line: rgba(16, 24, 38, 0.13);
  --pv-line-soft: rgba(16, 24, 38, 0.075);
  --pv-muted: rgba(16, 24, 38, 0.62);
  --pv-wash: rgba(18, 32, 60, 0.045);
  --pv-measure: 72ch;

  position: relative;
  isolation: isolate;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-privacy::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 520px;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(16, 24, 38, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16, 24, 38, 0.045) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.32) 55%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.32) 55%, transparent 100%);
}

/* ---------- 首屏 ---------- */

.page-privacy .pv-hero {
  padding-top: clamp(72px, 10vw, 122px);
  padding-bottom: clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--pv-line);
}

.page-privacy .pv-eyebrow {
  margin-bottom: 14px;
  color: var(--orange-deep);
}

.page-privacy .pv-hero h1 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-privacy .pv-hero__lead {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--pv-muted);
}

.page-privacy .pv-strip {
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--pv-line-soft);
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 1px var(--pv-line-soft);
  overflow: hidden;
}

.page-privacy .pv-strip__cell {
  background: var(--paper);
  padding: 14px 16px;
}

.page-privacy .pv-strip dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pv-muted);
}

.page-privacy .pv-strip dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-privacy .pv-hero__figure {
  margin-top: clamp(26px, 3.6vw, 42px);
}

/* ---------- 主体骨架 ---------- */

.page-privacy .pv-body {
  display: grid;
  gap: clamp(30px, 4.5vw, 52px);
  padding-top: clamp(34px, 4.6vw, 58px);
}

.page-privacy .pv-doc {
  min-width: 0;
}

/* ---------- 小节正文 ---------- */

.page-privacy .pv-sec {
  padding: clamp(24px, 3.2vw, 34px) 0;
  border-top: 1px solid var(--pv-line-soft);
  scroll-margin-top: 112px;
}

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

.page-privacy .pv-sec:target {
  border-top-color: var(--orange);
}

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

.page-privacy .pv-sec__num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange-deep);
}

.page-privacy .pv-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.3vw, 25px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-privacy .pv-sec p {
  margin: 0 0 14px;
  max-width: var(--pv-measure);
  font-size: clamp(16px, 1.5vw, 17px);
  line-height: 1.78;
}

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

.page-privacy .pv-sec a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .pv-sec a:hover,
.page-privacy .pv-sec a:focus-visible {
  color: var(--ink-900);
}

.page-privacy .pv-sec a:focus-visible,
.page-privacy .pv-toc__list a:focus-visible,
.page-privacy .pv-note a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---------- 定义列表 ---------- */

.page-privacy .pv-defs {
  margin: 18px 0 2px;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-defs__row {
  display: grid;
  gap: 3px;
  padding: 11px 0;
  border-bottom: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-defs__row dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--pv-muted);
}

.page-privacy .pv-defs__row dd {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.72;
}

/* ---------- 短列表 ---------- */

.page-privacy .pv-list {
  list-style: none;
  margin: 16px 0 18px;
  padding: 0;
  display: grid;
  gap: 9px;
  max-width: var(--pv-measure);
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.72;
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 口径说明 ---------- */

.page-privacy .pv-note {
  margin-top: clamp(28px, 4vw, 44px);
  padding: 20px 22px;
  border: 1px solid var(--pv-line);
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--pv-wash);
}

.page-privacy .pv-note__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

.page-privacy .pv-note p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.74;
}

.page-privacy .pv-note p + p {
  margin-top: 12px;
}

.page-privacy .pv-note a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .pv-note a:hover {
  color: var(--ink-900);
}

.page-privacy .pv-note__sep {
  margin: 0 8px;
  color: var(--pv-muted);
}

/* ---------- 术语提示 ---------- */

.page-privacy .pv-term {
  position: relative;
  border-bottom: 1px dashed rgba(16, 24, 38, 0.34);
  font-weight: 600;
  cursor: help;
}

.page-privacy .pv-term::after {
  content: attr(data-def);
  position: absolute;
  left: 0;
  bottom: calc(100% + 9px);
  width: max-content;
  max-width: min(300px, 78vw);
  padding: 9px 12px;
  border: 1px solid rgba(41, 224, 214, 0.3);
  border-radius: var(--radius-sm);
  background: var(--ds-900);
  color: var(--mist-100);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateY(5px);
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
  pointer-events: none;
  z-index: 4;
}

.page-privacy .pv-term:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 小节索引 ---------- */

.page-privacy .pv-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pv-muted);
}

.page-privacy .pv-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--pv-line);
  display: grid;
  gap: 2px;
}

.page-privacy .pv-toc__list li {
  margin: 0;
}

.page-privacy .pv-toc__list a {
  position: relative;
  display: block;
  padding: 7px 4px 7px 10px;
  border-radius: 4px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--pv-muted);
  text-decoration: none;
  transition: color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-privacy .pv-toc__list a::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 50%;
  width: 5px;
  height: 5px;
  margin-top: -2.5px;
  border-radius: 50%;
  background: var(--pv-line);
  transition: background-color 0.16s var(--ease), transform 0.16s var(--ease);
}

.page-privacy .pv-toc__list a:hover,
.page-privacy .pv-toc__list a:focus-visible {
  color: var(--ink-900);
  background: var(--pv-wash);
}

.page-privacy .pv-toc__list a:hover::before,
.page-privacy .pv-toc__list a:focus-visible::before {
  background: var(--orange);
  transform: scale(1.35);
}

/* 当前所在小节（点击索引后由 :target 状态标记） */
.page-privacy:has(#pv-scope:target) .pv-toc__list a[href="#pv-scope"],
.page-privacy:has(#pv-log:target) .pv-toc__list a[href="#pv-log"],
.page-privacy:has(#pv-cookie:target) .pv-toc__list a[href="#pv-cookie"],
.page-privacy:has(#pv-stats:target) .pv-toc__list a[href="#pv-stats"],
.page-privacy:has(#pv-assets:target) .pv-toc__list a[href="#pv-assets"],
.page-privacy:has(#pv-choices:target) .pv-toc__list a[href="#pv-choices"],
.page-privacy:has(#pv-updates:target) .pv-toc__list a[href="#pv-updates"] {
  color: var(--ink-900);
  font-weight: 600;
}

.page-privacy:has(#pv-scope:target) .pv-toc__list a[href="#pv-scope"]::before,
.page-privacy:has(#pv-log:target) .pv-toc__list a[href="#pv-log"]::before,
.page-privacy:has(#pv-cookie:target) .pv-toc__list a[href="#pv-cookie"]::before,
.page-privacy:has(#pv-stats:target) .pv-toc__list a[href="#pv-stats"]::before,
.page-privacy:has(#pv-assets:target) .pv-toc__list a[href="#pv-assets"]::before,
.page-privacy:has(#pv-choices:target) .pv-toc__list a[href="#pv-choices"]::before,
.page-privacy:has(#pv-updates:target) .pv-toc__list a[href="#pv-updates"]::before {
  background: var(--orange);
  transform: scale(1.35);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 640px) {
  .page-privacy .pv-defs__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-privacy .pv-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-privacy .pv-body {
    grid-template-columns: minmax(0, 1fr) 212px;
    column-gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }

  .page-privacy .pv-toc {
    position: sticky;
    top: 108px;
    align-self: start;
  }
}

/* ---------- 移动端：索引转为可换行的胶囊条 ---------- */

@media (max-width: 999px) {
  .page-privacy .pv-toc {
    order: -1;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--pv-line-soft);
  }

  .page-privacy .pv-toc__list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-left: 0;
    border-left: 0;
  }

  .page-privacy .pv-toc__list a {
    padding: 6px 13px;
    border: 1px solid var(--pv-line);
    border-radius: var(--radius-pill);
    font-size: 13px;
  }

  .page-privacy .pv-toc__list a::before {
    display: none;
  }

  .page-privacy .pv-toc__list a:hover,
  .page-privacy .pv-toc__list a:focus-visible {
    border-color: var(--orange);
    color: var(--ink-900);
  }
}

/* ---------- 窄屏与降低动效 ---------- */

@media (max-width: 720px) {
  .page-privacy .pv-term::after {
    display: none;
  }

  .page-privacy::before {
    height: 380px;
    background-size: 56px 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-term::after,
  .page-privacy .pv-toc__list a,
  .page-privacy .pv-toc__list a::before {
    transition: none;
  }
}