/* ===========================================================
   隐私政策页  page-privacy
   =========================================================== */

.page-privacy {
  --rail-w: 236px;
  --rail-line: rgba(28, 42, 74, 0.9);
  --clause-gap: clamp(34px, 5vw, 58px);
  position: relative;
  display: block;
  background:
    radial-gradient(115% 55% at 6% 0%, rgba(23, 229, 200, 0.075), transparent 62%),
    var(--void);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-intro {
  position: relative;
  padding: clamp(20px, 4.5vw, 46px) 0 clamp(34px, 6vw, 66px);
  overflow: hidden;
}

.page-privacy .privacy-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--grid-soft) 1px, transparent 1px);
  background-size: 8.3333% 100%;
  opacity: 0.55;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 82%);
  pointer-events: none;
}

.page-privacy .privacy-intro > .container {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-crumb-sep {
  margin: 0 8px;
  color: var(--grid);
}

.page-privacy .privacy-intro__eyebrow {
  margin: clamp(26px, 4vw, 44px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .privacy-intro__title {
  margin: 14px 0 0;
  max-width: 18ch;
  font-size: clamp(30px, 5.4vw, 62px);
  line-height: 1.07;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-privacy .privacy-intro__lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--muted);
}

.page-privacy .privacy-intro__figure {
  margin: clamp(30px, 5vw, 54px) 0 0;
}

/* ---------- 主布局 ---------- */

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-bottom: clamp(64px, 9vw, 118px);
}

.page-privacy .privacy-main {
  min-width: 0;
  max-width: 70ch;
}

/* ---------- 右侧旁注轨道 ---------- */

.page-privacy .privacy-rail {
  order: -1;
  border-top: var(--edge);
  padding-top: 18px;
  min-width: 0;
}

.page-privacy .privacy-rail__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .privacy-rail__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-privacy .privacy-rail__list > li {
  min-width: 0;
}

.page-privacy .privacy-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--rail-line);
  border-radius: 3px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  transition: color 150ms var(--ease), border-color 150ms var(--ease), background-color 150ms var(--ease);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background-color: rgba(23, 229, 200, 0.06);
}

.page-privacy .privacy-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .privacy-rail__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: var(--edge);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 条款块 ---------- */

.page-privacy .clause {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-privacy .clause + .clause {
  margin-top: var(--clause-gap);
}

.page-privacy .clause__box {
  border-top: 1px solid var(--rail-line);
  padding-top: 24px;
}

.page-privacy .clause__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  cursor: pointer;
  list-style: none;
  padding: 0;
  transition: color 150ms var(--ease);
}

.page-privacy .clause__summary::-webkit-details-marker {
  display: none;
}

.page-privacy .clause__summary::after {
  content: "−";
  flex: 0 0 auto;
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.3;
  color: var(--cyan);
}

.page-privacy .clause__box:not([open]) .clause__summary::after {
  content: "+";
}

.page-privacy .clause__summary:hover .clause__title {
  color: var(--cyan-soft);
}

.page-privacy .clause__num {
  flex: 0 0 auto;
  padding-top: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-privacy .clause__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: clamp(19px, 2.3vw, 26px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
  transition: color 150ms var(--ease);
}

.page-privacy .clause__content {
  padding-top: 22px;
}

.page-privacy .clause__lead,
.page-privacy .clause__para {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-privacy .clause__para + .clause__para {
  margin-top: 14px;
}

.page-privacy .clause__para a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 243, 226, 0.4);
}

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

.page-privacy .clause-note {
  margin: 22px 0 0;
  padding: 14px 0 14px 16px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(23, 229, 200, 0.07), transparent 82%);
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 信息分类列表 ---------- */

.page-privacy .data-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: var(--edge);
}

.page-privacy .data-list__item {
  background: var(--midnight);
  padding: 18px 16px;
  display: grid;
  gap: 8px;
}

.page-privacy .data-list__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-privacy .data-list__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-privacy .data-list__name {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-privacy .data-list__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 用途网格 ---------- */

.page-privacy .use-grid {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: var(--edge);
}

.page-privacy .use-card {
  background: var(--void);
  padding: 20px 18px;
}

.page-privacy .use-card__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cyan);
}

.page-privacy .use-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- Cookie 列表 ---------- */

.page-privacy .cookie-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: var(--edge);
}

.page-privacy .cookie-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: var(--edge);
}

.page-privacy .cookie-list__tag {
  grid-row: span 1;
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid rgba(23, 229, 200, 0.45);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-privacy .cookie-list__name {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-privacy .cookie-list__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 保存期限刻度 ---------- */

.page-privacy .retention {
  margin: 20px 0 0;
  display: grid;
  gap: 18px;
}

.page-privacy .retention__row {
  display: grid;
  gap: 8px;
}

.page-privacy .retention__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
}

.page-privacy .retention__name {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-privacy .retention__range {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-privacy .retention__track {
  position: relative;
  height: 4px;
  background: var(--grid);
  overflow: hidden;
}

.page-privacy .retention__bar {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(23, 229, 200, 0.12) 100%);
}

.page-privacy .retention__bar--long {
  width: 100%;
}

.page-privacy .retention__bar--mid {
  width: 68%;
}

.page-privacy .retention__bar--short {
  width: 30%;
}

/* ---------- 安全措施列表 ---------- */

.page-privacy .safety-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-privacy .safety-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-privacy .safety-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--flare);
}

.page-privacy .safety-list strong {
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 权利与操作 ---------- */

.page-privacy .rights {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: var(--edge);
}

.page-privacy .rights__item {
  padding: 18px 0;
  border-bottom: var(--edge);
}

.page-privacy .rights__term {
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cyan);
}

.page-privacy .rights__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 返回顶部 ---------- */

.page-privacy .to-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 20;
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-privacy .data-list__item {
    grid-template-columns: 158px minmax(0, 1fr);
    gap: 6px 22px;
    align-items: start;
    padding: 20px 20px;
  }

  .page-privacy .use-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-privacy .rights {
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 700px) var(--rail-w);
    justify-content: space-between;
    column-gap: clamp(40px, 5vw, 88px);
    row-gap: 0;
  }

  .page-privacy .privacy-rail {
    order: 0;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    border-top: none;
    border-left: 1px solid var(--rail-line);
    padding: 2px 0 0 24px;
  }

  .page-privacy .privacy-rail__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    margin-top: 16px;
  }

  .page-privacy .privacy-rail__list > li + li {
    border-top: var(--edge);
  }

  .page-privacy .privacy-rail__link {
    display: flex;
    width: 100%;
    padding: 11px 0;
    border: none;
    border-radius: 0;
    background: none;
    align-items: baseline;
    gap: 10px;
    font-size: 13px;
    line-height: 1.5;
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    background: none;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-rail {
    padding-left: 30px;
  }

  .page-privacy .privacy-rail__link {
    font-size: 13.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__link,
  .page-privacy .clause__title,
  .page-privacy .clause__summary {
    transition: none;
  }
}