.page-privacy {
  --prose: 640px;
  --rail: 208px;
  --privacy-gap: 72px;
  --privacy-ink: rgba(18, 224, 200, .10);
  padding-bottom: clamp(64px, 9vw, 120px);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px) 0 0;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: -80px -12% auto -12%;
  height: 460px;
  background:
    radial-gradient(58% 68% at 20% 16%, rgba(18, 224, 200, .17), transparent 64%),
    radial-gradient(46% 58% at 80% 6%, rgba(245, 194, 67, .10), transparent 66%);
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-privacy .privacy-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  color: var(--fog);
}

.page-privacy .privacy-hero__figure {
  margin: clamp(32px, 5vw, 52px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: linear-gradient(150deg, var(--ink-800), var(--ink-900) 72%);
  box-shadow: 0 30px 70px -50px rgba(18, 224, 200, .55);
}

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 35 / 12;
}

/* ---------- 主体双栏 ---------- */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  margin-top: clamp(48px, 7vw, 84px);
}

/* ---------- 章节目录 ---------- */
.page-privacy .privacy-rail {
  order: -1;
}

.page-privacy .privacy-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--dust);
}

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

.page-privacy .privacy-rail__list a {
  display: block;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--dust);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}

.page-privacy .privacy-rail__list a:hover,
.page-privacy .privacy-rail__list a:focus-visible {
  color: var(--pale);
  border-color: var(--line-cyan);
}

.page-privacy .privacy-rail__list a.is-active {
  color: var(--pale);
  border-color: var(--cyan);
  background: var(--privacy-ink);
}

/* ---------- 条款区块 ---------- */
.page-privacy .privacy-flow {
  min-width: 0;
}

.page-privacy .privacy-section {
  position: relative;
  padding: 40px 0 36px;
}

.page-privacy .privacy-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    rgba(18, 224, 200, 0) 0%,
    rgba(18, 224, 200, .48) 22%,
    rgba(18, 224, 200, .48) 78%,
    rgba(18, 224, 200, 0) 100%);
}

.page-privacy .privacy-section:first-child::before {
  display: none;
}

.page-privacy .privacy-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.page-privacy .privacy-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-cyan);
  border-radius: 50%;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  letter-spacing: .02em;
}

.page-privacy .privacy-head h2 {
  margin: 0;
  color: var(--pale);
}

.page-privacy .copy-btn.privacy-copy {
  flex: none;
  margin-left: auto;
  padding: 5px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--dust);
  font: inherit;
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
  opacity: .55;
  transition: opacity var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.page-privacy .copy-btn.privacy-copy:hover,
.page-privacy .copy-btn.privacy-copy:focus-visible {
  opacity: 1;
  color: var(--cyan);
  border-color: var(--line-cyan);
}

.page-privacy .copy-btn.privacy-copy[data-copied] {
  opacity: 1;
  color: var(--gold);
  border-color: var(--line-gold);
}

.page-privacy .privacy-section p {
  margin: 0 0 16px;
  max-width: 66ch;
  color: var(--fog);
}

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

.page-privacy .privacy-section a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-privacy .privacy-section a:hover {
  color: var(--gold);
  border-bottom-color: var(--line-gold);
}

.page-privacy .privacy-note {
  padding: 16px 18px;
  border-left: 2px solid var(--line-gold);
  border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
  background: rgba(245, 194, 67, .06);
  color: var(--fog);
}

/* ---------- 分类面板 ---------- */
.page-privacy .privacy-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 24px 0 4px;
}

.page-privacy .privacy-panel {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900) 74%);
}

.page-privacy .privacy-panel--must {
  border-color: var(--line-cyan);
}

.page-privacy .privacy-panel--opt {
  border-color: var(--line-gold);
  background: linear-gradient(160deg, rgba(245, 194, 67, .07), var(--ink-900) 74%);
}

.page-privacy .privacy-panel h3 {
  margin: 14px 0 14px;
  font-size: var(--fs-2);
  line-height: 1.4;
  color: var(--pale);
}

.page-privacy .privacy-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 20px;
  color: var(--fog);
  font-size: 16px;
  line-height: 1.8;
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
}

.page-privacy .privacy-panel--opt .privacy-list li::before {
  border-color: var(--gold);
}

.page-privacy .privacy-eg {
  display: block;
  margin-top: 4px;
  color: var(--dust);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 用途列表 ---------- */
.page-privacy .privacy-uses {
  margin: 24px 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-uses li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-uses__key {
  color: var(--cyan);
  font-size: 14px;
  letter-spacing: .04em;
}

.page-privacy .privacy-uses__val {
  color: var(--fog);
  max-width: 58ch;
}

/* ---------- 保存期限 ---------- */
.page-privacy .privacy-terms {
  margin: 24px 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-terms li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-terms__label {
  flex: 1 1 220px;
  min-width: 0;
  color: var(--fog);
}

.page-privacy .privacy-terms__val {
  color: var(--pale);
  font-size: 15px;
  background: var(--ink-600);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
}

/* ---------- 权利选择 ---------- */
.page-privacy .privacy-choices {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-choices li {
  color: var(--fog);
  max-width: 62ch;
}

.page-privacy .key-right {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 9px;
  border-radius: 7px;
  background: rgba(18, 224, 200, .12);
  color: var(--pale);
  font-size: 15px;
}

.page-privacy .privacy-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  margin: 26px 0 20px;
  padding: 18px 20px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-soft);
  background: linear-gradient(120deg, var(--ink-600), var(--ink-800));
}

.page-privacy .privacy-contact__label {
  margin: 0 0 6px;
  color: var(--dust);
  font-size: 14px;
}

.page-privacy .privacy-contact__value {
  margin: 0;
  color: var(--pale);
  font-family: var(--font-mono);
  font-size: 15px;
  word-break: break-all;
}

.page-privacy .copy-btn.privacy-contact__copy {
  padding: 8px 18px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--gold);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}

.page-privacy .copy-btn.privacy-contact__copy:hover,
.page-privacy .copy-btn.privacy-contact__copy:focus-visible {
  background: rgba(245, 194, 67, .14);
}

.page-privacy .copy-btn.privacy-contact__copy[data-copied] {
  background: var(--gold);
  color: var(--ink-900);
}

/* ---------- 本地存储标签 ---------- */
.page-privacy .privacy-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-tags li {
  padding: 5px 14px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-pill);
  color: var(--cyan);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- 收束 ---------- */
.page-privacy .privacy-next {
  position: relative;
  margin-top: 48px;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(150deg, rgba(18, 224, 200, .07), var(--ink-900) 68%);
}

.page-privacy .privacy-next::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  right: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.page-privacy .privacy-next__text {
  margin: 10px 0 18px;
  max-width: 52ch;
  color: var(--fog);
}

.page-privacy .privacy-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-privacy .privacy-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-privacy .privacy-uses li {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

  .page-privacy .privacy-uses__key {
    padding-top: 3px;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-body {
    grid-template-columns: minmax(0, var(--prose)) var(--rail);
    column-gap: var(--privacy-gap);
    justify-content: center;
  }

  .page-privacy .privacy-rail {
    order: 1;
    position: sticky;
    top: calc(var(--header-h, 72px) + 36px);
    align-self: start;
    max-height: calc(100vh - var(--header-h, 72px) - 72px);
    overflow-y: auto;
  }

  .page-privacy .privacy-rail__list {
    display: block;
    padding-left: 2px;
  }

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

  .page-privacy .privacy-rail__list a {
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 2px solid var(--line-soft);
    border-radius: 0;
    background: transparent;
    font-size: 15px;
  }

  .page-privacy .privacy-rail__list a:hover,
  .page-privacy .privacy-rail__list a:focus-visible {
    border-left-color: var(--line-cyan);
    background: transparent;
  }

  .page-privacy .privacy-rail__list a.is-active {
    border-left-color: var(--cyan);
    background: transparent;
  }

  .page-privacy .privacy-section {
    padding: 48px 0 44px;
  }
}

@media (min-width: 1100px) {
  .page-privacy .privacy-uses li {
    grid-template-columns: 132px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__list a,
  .page-privacy .copy-btn.privacy-copy,
  .page-privacy .copy-btn.privacy-contact__copy {
    transition: none;
  }
}