.page-privacy {
  --privacy-body-w: min(68ch, 720px);
  --privacy-index-w: 208px;
  padding-bottom: clamp(80px, 10vw, 140px);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(30px, 4.5vw, 60px);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--orange) 0 44px, var(--grid) 44px 100%);
}

.page-privacy .privacy-title {
  margin: 14px 0 0;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.14;
  max-width: 20ch;
}

.page-privacy .privacy-lead {
  margin: 20px 0 0;
  max-width: var(--privacy-body-w);
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
}

.page-privacy .privacy-banner {
  margin: clamp(26px, 4vw, 48px) 0 0;
}

/* ---------- 主体栅格 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  padding-top: clamp(34px, 5vw, 72px);
}

/* ---------- 条款索引 ---------- */
.page-privacy .privacy-index {
  min-width: 0;
}

.page-privacy .privacy-index .section-nav-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .privacy-index .section-nav-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 8px;
  margin: 0;
  list-style: none;
  scrollbar-width: thin;
}

.page-privacy .privacy-index .section-nav-list > li {
  flex: none;
}

.page-privacy .section-nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--grid);
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-privacy .section-nav-link:hover {
  color: var(--white);
  border-color: var(--orange);
}

.page-privacy .section-nav-link[aria-current="true"] {
  color: var(--white);
  border-color: var(--orange);
  background: rgba(255, 106, 26, .12);
}

.page-privacy .privacy-index-num {
  color: var(--grid);
  font-size: 11px;
  letter-spacing: .06em;
  transition: color .3s var(--ease);
}

.page-privacy .section-nav-link[aria-current="true"] .privacy-index-num,
.page-privacy .section-nav-link:hover .privacy-index-num {
  color: var(--orange);
}

/* ---------- 正文列 ---------- */
.page-privacy .privacy-body {
  max-width: var(--privacy-body-w);
  min-width: 0;
}

.page-privacy .privacy-body p {
  margin: 0 0 1.1em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--white);
}

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

/* ---------- 条款分节 ---------- */
.page-privacy .clause {
  scroll-margin-top: calc(var(--header-h) + 32px);
  padding-block: clamp(38px, 5.5vw, 64px);
  border-top: 1px solid var(--grid);
}

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

.page-privacy .clause-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}

.page-privacy .clause-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--orange);
}

.page-privacy .clause-title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 29px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-privacy .clause-intro {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 1.4em;
}

.page-privacy .clause-item {
  margin-top: 26px;
  padding-left: 0;
}

.page-privacy .clause-item-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 7px;
}

.page-privacy .clause-sub {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-privacy .clause-item-title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

/* ---------- 折叠块 ---------- */
.page-privacy .clause-fold {
  margin-top: 26px;
  border: 1px solid var(--grid);
  border-radius: var(--radius-md);
  background: var(--panel);
  overflow: hidden;
}

.page-privacy .clause-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  cursor: pointer;
  list-style: none;
  transition: color .3s var(--ease);
}

.page-privacy .clause-fold > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .clause-fold > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--orange);
}

.page-privacy .clause-fold[open] > summary::after {
  content: "−";
}

.page-privacy .clause-fold > summary:hover {
  color: var(--orange);
}

.page-privacy .clause-fold-body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--grid);
  margin-top: 0;
  padding-top: 14px;
}

.page-privacy .clause-fold-body p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 提示块 ---------- */
.page-privacy .privacy-callout {
  margin-top: 28px;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--orange);
  background: var(--ember);
}

.page-privacy .privacy-callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--white);
}

/* ---------- 联系通道 ---------- */
.page-privacy .privacy-channels {
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-privacy .privacy-channel {
  padding: 16px 0;
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-channel:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-privacy .privacy-channel dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-privacy .privacy-channel dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--white);
}

.page-privacy .privacy-value {
  font-size: 15.5px;
  color: var(--orange);
  letter-spacing: .01em;
  word-break: break-all;
}

/* ---------- 收束 ---------- */
.page-privacy .privacy-outro {
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-outro p {
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.9;
}

.page-privacy .privacy-outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-index-w) minmax(0, 1fr);
    gap: clamp(44px, 5vw, 84px);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
  }

  .page-privacy .privacy-index .section-nav-list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-privacy .privacy-index .section-nav-list > li {
    display: block;
  }

  .page-privacy .section-nav-link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 0 9px 16px;
    border: 0;
    border-left: 2px solid var(--grid);
    border-radius: 0;
    white-space: normal;
    line-height: 1.5;
    background: transparent;
    transition: color .3s var(--ease), border-color .3s var(--ease);
  }

  .page-privacy .section-nav-link:hover {
    border-left-color: var(--orange);
    background: transparent;
  }

  .page-privacy .section-nav-link[aria-current="true"] {
    border-left-color: var(--orange);
    background: transparent;
  }

  .page-privacy .privacy-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-privacy .privacy-channel:nth-child(odd) {
    padding-right: 16px;
  }
}

@media (min-width: 1280px) {
  .page-privacy .privacy-lead {
    margin-left: 0;
  }
}

@media (max-width: 640px) {
  .page-privacy .clause-head {
    gap: 12px;
  }

  .page-privacy .clause-item {
    margin-top: 22px;
  }

  .page-privacy .privacy-callout {
    padding: 18px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .section-nav-link,
  .page-privacy .privacy-index-num,
  .page-privacy .clause-fold > summary {
    transition: none;
  }
}