.page-privacy {
  --pv-index-w: 268px;
  --pv-line: #D5DED9;
  --pv-doc-w: 700px;
  position: relative;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-privacy .pv-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--band-h) + var(--bar-h) + 44px) 0 clamp(44px, 6vw, 76px);
}

.page-privacy .pv-hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  pointer-events: none;
}

.page-privacy .pv-hero__inner {
  position: relative;
}

.page-privacy .pv-hero .breadcrumbs {
  color: var(--cool);
  font-size: 13px;
}

.page-privacy .pv-hero .breadcrumbs__link {
  color: var(--neon);
}

.page-privacy .pv-hero__title {
  margin: 20px 0 0;
  color: var(--paper);
}

.page-privacy .pv-lede {
  max-width: 58ch;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--cool);
}

.page-privacy .pv-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 28px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cool);
}

/* ---------- 阅读进度 ---------- */

.page-privacy .pv-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(244, 246, 242, 0.16);
}

.page-privacy .pv-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: 0 50%;
}

@supports (animation-timeline: scroll()) {
  .page-privacy .pv-progress__fill {
    animation: pv-read-progress linear both;
    animation-timeline: scroll(root block);
  }
}

@keyframes pv-read-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-progress__fill {
    animation: none;
    transform: none;
  }
}

/* ---------- 主体两栏 ---------- */

.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: start;
  padding-top: clamp(36px, 6vw, 68px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 章节索引 ---------- */

.page-privacy .pv-index__head {
  margin: 0 0 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mid);
}

.page-privacy .pv-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-privacy .pv-index__list::-webkit-scrollbar {
  display: none;
}

.page-privacy .pv-index__list > li {
  flex: 0 0 auto;
}

.page-privacy .pv-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid var(--cool);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.page-privacy .pv-index__link:hover,
.page-privacy .pv-index__link:focus-visible {
  border-left-color: var(--neon);
  background: rgba(14, 122, 99, 0.09);
}

.page-privacy .pv-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

/* ---------- 正文 ---------- */

.page-privacy .pv-doc {
  max-width: var(--pv-doc-w);
  min-width: 0;
}

.page-privacy .pv-hint {
  margin: 0 0 32px;
  padding: 14px 18px;
  border-left: 3px solid var(--teal);
  background: rgba(14, 122, 99, 0.07);
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

.page-privacy .pv-section {
  padding: 30px 0 34px;
  border-top: 1px solid var(--pv-line);
  scroll-margin-top: calc(var(--band-h) + var(--bar-h) + 20px);
}

.page-privacy .pv-section:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .pv-section__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-privacy .pv-section h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .pv-section p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

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

.page-privacy .pv-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-list li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.72;
}

.page-privacy .pv-list li:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 13px;
  height: 2px;
  background: var(--teal);
}

.page-privacy .pv-section a,
.page-privacy .pv-hint a {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-privacy .pv-section a:hover,
.page-privacy .pv-hint a:hover {
  color: var(--ink);
  background: rgba(59, 240, 196, 0.3);
}

/* ---------- 表格 ---------- */

.page-privacy .pv-section .table-wrap {
  margin: 6px 0 18px;
}

.page-privacy .pv-section .data-table th {
  white-space: nowrap;
}

/* ---------- 用途示意图 ---------- */

.page-privacy .pv-flow {
  display: block;
  width: 100%;
  height: auto;
  margin: 4px 0 20px;
}

.page-privacy .pv-flow__wire {
  fill: none;
  stroke: var(--teal);
  stroke-width: 2;
}

.page-privacy .pv-flow__node {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 2;
}

.page-privacy .pv-flow__node--root {
  fill: var(--ink);
}

.page-privacy .pv-flow__text {
  font-family: var(--font-body);
  font-size: 13px;
  fill: var(--ink);
}

.page-privacy .pv-flow__text--root {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--neon);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-index-w) minmax(0, 1fr);
    gap: 64px;
  }

  .page-privacy .pv-index {
    position: sticky;
    top: calc(var(--band-h) + var(--bar-h) + 24px);
  }

  .page-privacy .pv-index__list {
    display: block;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-privacy .pv-index__list > li {
    flex: none;
  }

  .page-privacy .pv-index__link {
    white-space: normal;
    padding: 8px 12px;
  }
}

@media (min-width: 1200px) {
  .page-privacy {
    --pv-index-w: 300px;
    --pv-doc-w: 720px;
  }
}