.page-privacy {
  --pv-rule: rgba(10, 16, 22, 0.16);
  --pv-rule-soft: rgba(10, 16, 22, 0.08);
  background: var(--paper);
  color: var(--ink-paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 顶部深色框景条 ---------- */
.page-privacy .pv-frame {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(11, 110, 138, 0.42) 0%, rgba(7, 23, 34, 0) 62%),
    var(--ink);
  color: var(--snow);
  border-bottom: 10px solid var(--ice);
  padding: 1.1rem 0 clamp(2rem, 5vw, 3.25rem);
}

.page-privacy .pv-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.5;
  pointer-events: none;
}

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

.page-privacy .pv-frame .breadcrumb {
  color: rgba(244, 249, 255, 0.66);
}

.page-privacy .pv-frame .breadcrumb a {
  color: var(--teal);
  text-decoration: none;
}

.page-privacy .pv-frame .breadcrumb a:hover,
.page-privacy .pv-frame .breadcrumb a:focus-visible {
  color: var(--orange);
}

.page-privacy .pv-frame__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: end;
  margin-top: clamp(1.25rem, 3vw, 2.25rem);
}

.page-privacy .pv-frame .eyebrow {
  color: var(--teal);
  letter-spacing: 0.22em;
  margin: 0;
}

.page-privacy .pv-frame h1 {
  margin: 0.55rem 0 0.9rem;
  color: var(--snow);
  font-weight: 900;
  font-size: clamp(1.95rem, 6vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-privacy .pv-lede {
  margin: 0;
  max-width: 34em;
  color: rgba(244, 249, 255, 0.82);
  font-size: var(--step-4);
  line-height: 1.8;
}

.page-privacy .pv-frame__fig {
  margin: 0;
  width: 100%;
}

.page-privacy .pv-frame__fig.media-frame {
  border: 1px solid var(--ice-light);
  box-shadow: 10px 10px 0 rgba(0, 209, 193, 0.18);
  background: rgba(10, 34, 49, 0.6);
}

.page-privacy .pv-frame__fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-privacy .pv-frame__fig .media-frame__cap {
  color: rgba(244, 249, 255, 0.6);
}

/* ---------- 主体骨架 ---------- */
.page-privacy .pv-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 5rem);
}

/* ---------- 左侧目录 ---------- */
.page-privacy .pv-toc {
  border-top: 3px solid var(--ink-paper);
  padding-top: 0.85rem;
}

.page-privacy .pv-toc__title {
  margin: 0 0 0.6rem;
  font-size: var(--step-1);
  letter-spacing: 0.2em;
  color: var(--paper-muted);
  text-transform: uppercase;
}

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

.page-privacy .pv-toc__list a {
  display: flex;
  gap: 0.7rem;
  align-items: baseline;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--ink-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--pv-rule-soft);
  transition: color 0.16s ease, border-color 0.16s ease, padding-left 0.16s ease;
}

.page-privacy .pv-toc__list a .mono {
  font-size: var(--step-1);
  color: var(--ice);
  letter-spacing: 0.08em;
}

.page-privacy .pv-toc__list a:hover,
.page-privacy .pv-toc__list a:focus-visible {
  color: var(--ice);
  border-bottom-color: var(--ice);
  padding-left: 0.35rem;
}

/* ---------- 正文小节 ---------- */
.page-privacy .pv-sec {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: clamp(1.5rem, 3.5vw, 2.4rem) 0;
  border-top: 1px solid var(--pv-rule);
}

.page-privacy .pv-sec:first-child {
  border-top: 3px solid var(--ink-paper);
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

.page-privacy .pv-sec__no {
  margin: 0;
  color: var(--ice);
  font-size: var(--step-2);
  letter-spacing: 0.2em;
  line-height: 1.2;
}

.page-privacy .pv-sec h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink-paper);
}

.page-privacy .pv-sec p {
  margin: 0 0 0.9rem;
  max-width: 40em;
  font-size: var(--step-4);
  line-height: 1.85;
  color: #16222c;
}

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

.page-privacy .pv-sec a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .pv-sec a:hover,
.page-privacy .pv-sec a:focus-visible {
  color: var(--orange);
}

.page-privacy .pv-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  max-width: 40em;
}

.page-privacy .pv-list li {
  position: relative;
  padding: 0.65rem 0 0.65rem 1.5rem;
  border-top: 1px dashed var(--pv-rule);
  font-size: var(--step-4);
  line-height: 1.8;
  color: #16222c;
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.2rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--ice);
}

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

/* ---------- 术语浅底说明 ---------- */
.page-privacy .pv-term {
  position: relative;
  display: inline;
  border-bottom: 1px dashed var(--ice);
  cursor: help;
}

.page-privacy .pv-term:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-privacy .pv-term__note {
  display: block;
  margin: 0.45rem 0 0.2rem;
  padding: 0.5rem 0.7rem;
  background: rgba(11, 110, 138, 0.09);
  border-left: 3px solid var(--ice);
  font-size: var(--step-2);
  line-height: 1.7;
  color: var(--paper-muted);
}

/* ---------- 底部操作 ---------- */
.page-privacy .pv-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: clamp(1.75rem, 4vw, 3rem);
  padding-top: 1.5rem;
  border-top: 3px solid var(--ink-paper);
}

.page-privacy .btn--ghost {
  color: var(--ink-paper);
  border-color: var(--ink-paper);
}

.page-privacy .btn--ghost:hover,
.page-privacy .btn--ghost:focus-visible {
  color: var(--snow);
  background: var(--ink-paper);
  border-color: var(--ink-paper);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-privacy .pv-frame__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-privacy .pv-body {
    grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
    align-items: start;
  }

  .page-privacy .pv-toc {
    position: sticky;
    top: 5.5rem;
  }

  .page-privacy .pv-sec {
    grid-template-columns: 3.75rem minmax(0, 1fr);
    gap: 1.75rem;
  }

  .page-privacy .pv-sec__no {
    text-align: left;
    padding-top: 0.35rem;
  }

  .page-privacy .pv-term__note {
    position: absolute;
    left: 0;
    top: calc(100% + 0.4rem);
    width: min(24rem, 54vw);
    margin: 0;
    background: var(--snow);
    border: 1px solid var(--ice);
    border-left: 3px solid var(--ice);
    box-shadow: 6px 6px 0 rgba(10, 16, 22, 0.14);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
    z-index: 6;
  }

  .page-privacy .pv-term:hover .pv-term__note,
  .page-privacy .pv-term:focus .pv-term__note,
  .page-privacy .pv-term:focus-within .pv-term__note {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

@media (min-width: 1180px) {
  .page-privacy .pv-body {
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: 4rem;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-privacy {
    background: #ffffff;
  }

  .page-privacy .pv-frame {
    background: #ffffff;
    color: #000000;
    border-bottom: 2px solid #000000;
  }

  .page-privacy .pv-frame::before,
  .page-privacy .pv-toc,
  .page-privacy .pv-term__note,
  .page-privacy .pv-actions {
    display: none !important;
  }

  .page-privacy .pv-frame h1,
  .page-privacy .pv-lede {
    color: #000000;
  }

  .page-privacy .pv-sec {
    break-inside: avoid;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-term__note,
  .page-privacy .pv-toc__list a {
    transition: none;
  }
}