.page-privacy {
  --prv-muted: #b6c5da;
  --prv-rule: rgba(136, 153, 179, .22);
  --prv-nav-w: 220px;
  --prv-gap-x: clamp(36px, 6vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  padding: clamp(20px, 3.6vw, 46px) 0 clamp(6px, 1.2vw, 16px);
}

.page-privacy .privacy-title {
  font-size: clamp(34px, 5.6vw, 72px);
  line-height: 1.05;
  max-width: 15em;
  margin: clamp(14px, 2vw, 22px) 0 clamp(16px, 2.2vw, 26px);
}

.page-privacy .privacy-lede {
  max-width: 58ch;
  color: var(--prv-muted);
  font-size: clamp(15.5px, 1.4vw, 18px);
  line-height: 1.85;
  margin: 0;
}

/* ---------- 横幅 ---------- */
.page-privacy .privacy-banner {
  position: relative;
  margin: clamp(24px, 4vw, 48px) 0 0;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--ink-deep);
}

.page-privacy .privacy-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-privacy .privacy-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .45;
  background-image:
    linear-gradient(rgba(30, 46, 74, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 46, 74, .5) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ---------- 双栏骨架 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(34px, 5.5vw, 72px);
}

@media (min-width: 900px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--prv-nav-w) minmax(0, 1fr);
    gap: var(--prv-gap-x);
  }
}

/* ---------- 章节导航 ---------- */
.page-privacy .privacy-toc-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 12px;
}

.page-privacy .privacy-toc-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-toc-list::-webkit-scrollbar {
  display: none;
}

.page-privacy .privacy-toc-list li {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc-list a {
  display: block;
  padding: 7px 13px;
  border: 1px solid var(--grid);
  color: var(--slate);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

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

@media (min-width: 900px) {
  .page-privacy .privacy-toc {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-privacy .privacy-toc-list {
    display: block;
    overflow: visible;
  }

  .page-privacy .privacy-toc-list li + li {
    margin-top: 2px;
  }

  .page-privacy .privacy-toc-list a {
    padding: 10px 0 10px 16px;
    border: 0;
    border-left: 1px solid var(--grid);
    font-size: 14px;
    white-space: normal;
  }

  .page-privacy .privacy-toc-list a:hover,
  .page-privacy .privacy-toc-list a:focus-visible {
    color: var(--fog);
    border-left-color: var(--cyan);
  }
}

/* ---------- 章节通用 ---------- */
.page-privacy .privacy-sec {
  border-top: 1px solid var(--prv-rule);
  padding-top: clamp(32px, 4.6vw, 58px);
}

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

.page-privacy .privacy-sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-privacy .privacy-sec-num {
  flex: 0 0 auto;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-privacy .privacy-sec-title {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.5vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--fog);
  margin: 0;
}

.page-privacy .privacy-sec .prose {
  max-width: 72ch;
  color: var(--prv-muted);
  font-size: clamp(15px, 1.32vw, 17px);
  line-height: 1.9;
  margin: 0 0 clamp(20px, 3vw, 32px);
}

/* ---------- 两类信息 ---------- */
.page-privacy .privacy-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 720px) {
  .page-privacy .privacy-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-privacy .privacy-card {
  padding: clamp(20px, 2.2vw, 28px);
  border: 1px solid var(--grid);
  background: var(--frost);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.page-privacy .privacy-card-title {
  position: relative;
  padding-left: 16px;
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--fog);
}

.page-privacy .privacy-card-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .privacy-card-text {
  margin: 0;
  color: var(--prv-muted);
  font-size: 15px;
  line-height: 1.88;
}

/* ---------- 用途四格 ---------- */
.page-privacy .privacy-uses {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

@media (min-width: 720px) {
  .page-privacy .privacy-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-privacy .privacy-use {
  padding: clamp(18px, 2.2vw, 26px);
  background: linear-gradient(165deg, rgba(21, 27, 63, .5), rgba(6, 13, 27, .75));
}

.page-privacy .privacy-use-title {
  position: relative;
  padding-top: 12px;
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--fog);
}

.page-privacy .privacy-use-title::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--cyan);
}

.page-privacy .privacy-use-text {
  margin: 0;
  color: var(--prv-muted);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 安全认证块 ---------- */
.page-privacy .privacy-seal {
  margin-top: clamp(6px, 1.2vw, 14px);
  padding: clamp(20px, 2.2vw, 28px);
  border: 1px solid rgba(41, 242, 214, .3);
  background: linear-gradient(135deg, rgba(6, 48, 46, .8), rgba(6, 13, 27, .6));
}

.page-privacy .privacy-seal-tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-privacy .privacy-seal-text {
  max-width: 62ch;
  margin: 0;
  color: var(--fog);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 权利条目 ---------- */
.page-privacy .privacy-rights {
  border-top: 1px solid var(--prv-rule);
}

.page-privacy .privacy-right {
  position: relative;
  border-bottom: 1px solid var(--prv-rule);
}

.page-privacy .privacy-right::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .22s var(--ease);
}

.page-privacy .privacy-right[open]::before {
  transform: scaleY(1);
}

.page-privacy .privacy-right-sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  transition: padding-left .22s var(--ease);
}

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

.page-privacy .privacy-right-sum:hover .privacy-right-name,
.page-privacy .privacy-right-sum:focus-visible .privacy-right-name {
  color: var(--cyan);
}

.page-privacy .privacy-right-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
  transition: color .18s var(--ease);
}

.page-privacy .privacy-right-mark {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .22s var(--ease);
}

.page-privacy .privacy-right[open] .privacy-right-mark {
  transform: rotate(-135deg);
}

.page-privacy .privacy-right-body {
  padding: 0 0 20px;
  transition: padding-left .22s var(--ease);
}

.page-privacy .privacy-right[open] .privacy-right-sum,
.page-privacy .privacy-right[open] .privacy-right-body {
  padding-left: 18px;
}

.page-privacy .privacy-right-body p {
  max-width: 66ch;
  margin: 0;
  color: var(--prv-muted);
  font-size: 15px;
  line-height: 1.88;
}

.page-privacy .privacy-follow {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-privacy .privacy-follow a,
.page-privacy .privacy-channel-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 214, .35);
  transition: border-color .18s var(--ease);
}

.page-privacy .privacy-follow a:hover,
.page-privacy .privacy-channel-note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 联系渠道 ---------- */
.page-privacy .privacy-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

@media (min-width: 720px) {
  .page-privacy .privacy-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-privacy .privacy-channel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.2vw, 26px);
  background: rgba(6, 13, 27, .72);
}

.page-privacy .privacy-channel-key {
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-privacy .privacy-channel-val {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 18px);
  color: var(--fog);
  word-break: break-word;
}

.page-privacy .privacy-channel-note {
  max-width: 68ch;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc-list a,
  .page-privacy .privacy-right::before,
  .page-privacy .privacy-right-sum,
  .page-privacy .privacy-right-name,
  .page-privacy .privacy-right-mark,
  .page-privacy .privacy-right-body,
  .page-privacy .privacy-follow a,
  .page-privacy .privacy-channel-note a {
    transition: none;
  }
}