.page-privacy {
  --privacy-rail: 214px;
}

/* ---------- 封面 ---------- */
.page-privacy .privacy-cover {
  position: relative;
  overflow: hidden;
  border-bottom: var(--rule);
  background:
    radial-gradient(110% 86% at 10% -10%, rgba(183, 240, 74, .12), transparent 58%),
    radial-gradient(88% 74% at 92% 4%, rgba(255, 107, 74, .11), transparent 62%),
    var(--ink-900);
}

.page-privacy .privacy-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .35;
  background-image: radial-gradient(rgba(126, 150, 188, .26) 1px, transparent 1px);
  background-size: 24px 24px;
}

.page-privacy .privacy-cover__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(30px, 6vw, 72px) clamp(26px, 4vw, 46px);
}

.page-privacy .privacy-cover__title {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  line-height: .98;
  letter-spacing: -.02em;
  max-width: 12ch;
}

.page-privacy .privacy-cover__lead {
  margin: 18px 0 0;
  max-width: 38em;
  color: var(--ink-400);
  font-size: 17px;
  line-height: 1.75;
}

.page-privacy .privacy-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: var(--rule-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  line-height: 1.6;
  color: var(--ink-400);
}

.page-privacy .privacy-cover__band {
  height: 3px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--coral) 42%, rgba(30, 58, 99, 0) 86%);
}

/* ---------- 主体两栏 ---------- */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 46px);
  padding-block: clamp(26px, 4.6vw, 56px) clamp(46px, 8vw, 92px);
}

/* ---------- 左侧条目轨道 ---------- */
.page-privacy .privacy-rail {
  border-top: var(--rule-soft);
  border-bottom: var(--rule-soft);
  padding-block: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-rail__title {
  display: none;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: var(--rule-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ink-400);
}

.page-privacy .privacy-rail__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  white-space: nowrap;
}

.page-privacy .privacy-rail__list li + li {
  border-left: var(--rule-soft);
}

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 2px solid transparent;
  color: var(--ink-400);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--ink-700);
}

.page-privacy .privacy-rail__link.is-active,
.page-privacy .privacy-rail__link[aria-current="location"] {
  color: var(--mist);
  border-bottom-color: var(--lime);
  background: linear-gradient(180deg, rgba(183, 240, 74, .12), rgba(183, 240, 74, 0));
}

.page-privacy .privacy-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mono-lime);
}

/* ---------- 条目 ---------- */
.page-privacy .privacy-flow {
  min-width: 0;
}

.page-privacy .privacy-item {
  scroll-margin-top: calc(var(--nav-h) + 22px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: var(--rule);
}

.page-privacy .privacy-item + .privacy-item {
  margin-top: clamp(30px, 5vw, 54px);
}

.page-privacy .privacy-item__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--mono-lime);
}

.page-privacy .privacy-item__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 8px;
}

.page-privacy .privacy-item__title {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(17px, 2.2vw, 22px);
  letter-spacing: .02em;
  line-height: 1.4;
  color: var(--mist);
}

.page-privacy .privacy-item__anchor {
  appearance: none;
  padding: 4px 9px;
  border: var(--rule);
  background: none;
  color: var(--ink-400);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-privacy .privacy-item__anchor:hover,
.page-privacy .privacy-item__anchor:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-privacy .privacy-item__mark {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--lime);
  opacity: 0;
  transition: opacity var(--t) var(--ease);
}

.page-privacy .privacy-item__mark.is-on {
  opacity: 1;
}

.page-privacy .privacy-item__body {
  max-width: 38em;
  margin-top: 14px;
}

.page-privacy .privacy-item__body p {
  margin: 0 0 12px;
  font-size: 17px;
  line-height: 1.75;
}

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

/* 深色底上的列表 */
.page-privacy .privacy-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  max-width: 38em;
}

.page-privacy .privacy-list li {
  position: relative;
  padding: 11px 0 11px 22px;
  border-top: var(--rule-soft);
  font-size: 16px;
  line-height: 1.7;
}

.page-privacy .privacy-list li:last-child {
  border-bottom: var(--rule-soft);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 8px;
  height: 8px;
  background: var(--lime);
}

/* 暖沙色要点区块 */
.page-privacy .privacy-scope {
  max-width: 44em;
  margin-top: 22px;
  padding: clamp(18px, 3vw, 32px);
  background: var(--sand);
  border: 1px solid var(--sand-edge);
  color: var(--ink-on-sand);
}

.page-privacy .privacy-scope__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--sand-soft);
}

.page-privacy .privacy-scope__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-scope__list li {
  position: relative;
  padding: 11px 0 11px 22px;
  border-top: 1px solid var(--sand-edge);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-on-sand);
}

.page-privacy .privacy-scope__list li:last-child {
  border-bottom: 1px solid var(--sand-edge);
}

.page-privacy .privacy-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 8px;
  height: 8px;
  background: var(--ink-on-sand);
}

/* 示意图 */
.page-privacy .privacy-figure {
  max-width: 44em;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  border: var(--rule-soft);
  background: linear-gradient(165deg, var(--ink-900), var(--ink-950));
}

.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1000 / 600;
  object-fit: cover;
}

.page-privacy .privacy-figure figcaption {
  padding: 12px 16px;
  border-top: var(--rule-soft);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-400);
}

/* 路径行与补注 */
.page-privacy .privacy-path {
  max-width: 44em;
  margin-top: 18px;
}

.page-privacy .privacy-note {
  max-width: 38em;
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 1px solid var(--coral);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-400);
}

/* ---------- 交叉链接 ---------- */
.page-privacy .privacy-next {
  margin-top: clamp(38px, 6vw, 72px);
  padding-top: clamp(22px, 3.4vw, 34px);
  border-top: var(--rule);
}

.page-privacy .privacy-next__title {
  margin: 0;
}

.page-privacy .privacy-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 18px;
  border-top: var(--rule-soft);
}

.page-privacy .privacy-next__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 2px;
  border-bottom: var(--rule-soft);
  color: var(--mist);
  text-decoration: none;
  font-size: 16px;
  line-height: 1.6;
  transition: color var(--t) var(--ease), padding-left var(--t) var(--ease);
}

.page-privacy .privacy-next__link:hover,
.page-privacy .privacy-next__link:focus-visible {
  color: var(--lime);
  padding-left: 10px;
}

.page-privacy .privacy-next__code {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-400);
}

/* ---------- 桌面 ---------- */
@media (min-width: 700px) {
  .page-privacy .privacy-next__grid {
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 940px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--privacy-rail) minmax(0, 1fr);
    gap: clamp(32px, 4.4vw, 68px);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--nav-h) + 20px);
    align-self: start;
    overflow: visible;
    border-top: 0;
    border-bottom: 0;
    padding-block: 0;
  }

  .page-privacy .privacy-rail__title {
    display: block;
  }

  .page-privacy .privacy-rail__list {
    display: block;
    white-space: normal;
  }

  .page-privacy .privacy-rail__list li + li {
    border-left: 0;
    border-top: var(--rule-soft);
  }

  .page-privacy .privacy-rail__link {
    padding: 11px 0 11px 11px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    font-size: 14px;
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--ink-700);
  }

  .page-privacy .privacy-rail__link.is-active,
  .page-privacy .privacy-rail__link[aria-current="location"] {
    border-bottom-color: transparent;
    border-left-color: var(--lime);
    background: linear-gradient(90deg, rgba(183, 240, 74, .12), rgba(183, 240, 74, 0) 78%);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal] {
    transform: none !important;
    opacity: 1 !important;
  }

  .page-privacy .privacy-rail__link,
  .page-privacy .privacy-next__link,
  .page-privacy .privacy-item__anchor,
  .page-privacy .privacy-item__mark {
    transition: none;
  }
}