/* ================= 隐私中心 · 页面专属样式 ================= */
.page-privacy {
  --pv-warm-tint: rgba(10, 18, 32, .045);
  --pv-warm-tint-strong: rgba(10, 18, 32, .08);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-privacy .crumbs a {
  color: var(--cold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .crumbs a:hover,
.page-privacy .crumbs a:focus-visible {
  color: var(--fluoro);
  border-bottom-color: var(--fluoro);
}

.page-privacy .crumbs [aria-current="page"] {
  color: var(--paper);
  border-bottom-color: var(--hair-strong);
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  padding: var(--s2) 0 var(--s5);
  border-bottom: 1px solid var(--hair);
  background-image:
    linear-gradient(to right, rgba(169, 184, 204, .08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(169, 184, 204, .08) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

.page-privacy .pv-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s5);
  padding-top: var(--s4);
}

.page-privacy .pv-hero__kicker {
  display: inline-block;
  margin: 0 0 var(--s3);
  color: var(--fluoro);
}

.page-privacy .pv-hero__title {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(30px, 8.4vw, 100px);
  line-height: 1.02;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-privacy .pv-hero__lede {
  margin: var(--s4) 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cold);
}

.page-privacy .pv-facts {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--hair-strong);
}

.page-privacy .pv-facts__row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: var(--s3);
  padding: var(--s3) 0;
  border-bottom: 1px solid var(--hair);
}

.page-privacy .pv-facts__key {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-privacy .pv-facts__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  text-align: right;
  color: var(--paper);
}

.page-privacy .pv-hero__figure {
  margin: var(--s5) 0 0;
}

.page-privacy .pv-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 长文区 ---------- */
.page-privacy .pv-doc {
  padding: var(--s6) 0 var(--s7);
}

.page-privacy .pv-doc__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s5);
  max-width: 1120px;
  margin: 0 auto;
}

/* ---------- 章节索引 ---------- */
.page-privacy .pv-rail {
  display: flex;
  gap: var(--s3);
  margin-top: var(--s2);
  padding-bottom: var(--s2);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-privacy .pv-rail__link {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-start;
  gap: var(--s2);
  padding: var(--s2) var(--s3) var(--s2) 0;
  border-top: 2px solid var(--paper-line);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .pv-rail__tick {
  display: none;
}

.page-privacy .pv-rail__text {
  flex: 0 1 auto;
}

.page-privacy .pv-rail__link:hover,
.page-privacy .pv-rail__link:focus-visible {
  color: var(--ink);
  border-top-color: var(--fluoro-deep);
}

.page-privacy .pv-rail__link[aria-current="true"] {
  color: var(--ink);
  font-weight: 500;
  border-top-color: var(--amber);
}

/* ---------- 正文分节 ---------- */
.page-privacy .pv-sec {
  padding-top: var(--s5);
  border-top: 1px solid var(--hair-paper);
}

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

.page-privacy .pv-sec + .pv-sec {
  margin-top: var(--s5);
}

.page-privacy .pv-sec__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: var(--s3);
  margin-bottom: var(--s4);
}

.page-privacy .pv-sec__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--fluoro-deep);
}

.page-privacy .pv-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-privacy .pv-sec__body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-privacy .pv-sec__body p {
  margin: 0 0 var(--s3);
  max-width: 68ch;
}

.page-privacy .pv-sec__body > :last-child {
  margin-bottom: 0;
}

.page-privacy .pv-sec__body strong {
  font-weight: 600;
  color: var(--ink);
}

.page-privacy .pv-sec__body a {
  color: var(--fluoro-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color .18s var(--ease);
}

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

/* ---------- 列表 ---------- */
.page-privacy .pv-list {
  list-style: none;
  margin: 0 0 var(--s4);
  padding: 0;
  max-width: 68ch;
}

.page-privacy .pv-list > li {
  position: relative;
  padding: var(--s3) 0 var(--s3) var(--s5);
  border-top: 1px solid var(--hair-paper);
  line-height: 1.8;
}

.page-privacy .pv-list > li:last-child {
  border-bottom: 1px solid var(--hair-paper);
}

.page-privacy .pv-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--s3) + .82em);
  width: 12px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 定义块 ---------- */
.page-privacy .pv-def {
  max-width: 68ch;
  margin: var(--s4) 0;
  padding: var(--s4);
  background: var(--pv-warm-tint);
  border-left: 3px solid var(--fluoro-deep);
}

.page-privacy .pv-def__term {
  display: block;
  margin-bottom: var(--s2);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fluoro-deep);
}

.page-privacy .pv-def__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 提醒频率三栏 ---------- */
.page-privacy .pv-freq {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s3);
  list-style: none;
  margin: 0 0 var(--s4);
  padding: 0;
}

.page-privacy .pv-freq__item {
  padding: var(--s3);
  background: var(--pv-warm-tint);
  border-top: 2px solid var(--amber);
}

.page-privacy .pv-freq__name {
  display: block;
  margin-bottom: var(--s2);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-privacy .pv-freq__desc {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 收尾引导 ---------- */
.page-privacy .pv-cta {
  padding: var(--s6) 0 var(--s7);
  background: var(--board);
  border-top: 1px solid var(--hair);
}

.page-privacy .pv-cta .index-label {
  color: var(--fluoro);
}

.page-privacy .pv-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s4);
  align-items: end;
}

.page-privacy .pv-cta__title {
  margin: var(--s2) 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-privacy .pv-cta__text {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cold);
}

.page-privacy .pv-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
}

/* ---------- 桌面强化 ---------- */
@media (min-width: 640px) {
  .page-privacy .pv-freq {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-privacy .pv-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--s6);
  }
}

@media (min-width: 1000px) {
  .page-privacy .pv-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--s7);
    align-items: end;
  }

  .page-privacy .pv-rail {
    display: grid;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-top: 1px solid var(--hair-paper);
  }

  .page-privacy .pv-rail__link {
    padding: var(--s3) 0;
    border-top: 0;
    border-bottom: 1px solid var(--hair-paper);
    white-space: normal;
    font-size: 13px;
  }

  .page-privacy .pv-rail__tick {
    display: block;
    flex: 0 0 auto;
    width: 8px;
    height: 2px;
    margin-top: .58em;
    background: var(--paper-line);
    transition: width .18s var(--ease), background-color .18s var(--ease);
  }

  .page-privacy .pv-rail__link:hover .pv-rail__tick,
  .page-privacy .pv-rail__link:focus-visible .pv-rail__tick {
    background: var(--fluoro-deep);
  }

  .page-privacy .pv-rail__link[aria-current="true"] .pv-rail__tick {
    width: 18px;
    background: var(--amber);
  }
}

@media (min-width: 960px) {
  .page-privacy .pv-doc__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: var(--s8);
    align-items: start;
  }

  .page-privacy .pv-doc__aside {
    position: sticky;
    top: calc(var(--header-h) + var(--s4));
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-rail__link,
  .page-privacy .pv-rail__tick,
  .page-privacy .pv-sec__body a,
  .page-privacy .crumbs a {
    transition: none;
  }
}