/* ===== 数据与隐私 ===== */
.page-privacy {
  --doc-measure: 72ch;
  --doc-numcol: 84px;
  --doc-line: rgba(58, 46, 94, 0.72);
  --doc-line-soft: rgba(58, 46, 94, 0.46);
  --doc-panel: rgba(21, 13, 43, 0.66);
  position: relative;
  padding-bottom: clamp(56px, 9vw, 104px);
  color: var(--ink);
}

.page-privacy::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 520px;
  background:
    radial-gradient(72% 100% at 14% 0%, rgba(164, 92, 255, 0.22), transparent 68%),
    radial-gradient(58% 82% at 92% 6%, rgba(47, 224, 255, 0.13), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

/* --- 面包屑与首屏 --- */
.page-privacy .crumbs {
  padding-top: clamp(22px, 4vw, 44px);
  color: var(--ink-2);
}

.page-privacy .doc-intro {
  margin-top: clamp(18px, 3vw, 34px);
}

.page-privacy .doc-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
}

.page-privacy .doc-intro h1 {
  margin: 10px 0 0;
}

.page-privacy .doc-intro__lede {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.85;
  color: var(--ink-2);
}

.page-privacy .doc-intro__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--doc-line-soft);
}

.page-privacy .doc-intro__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-privacy .doc-intro__k {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}

.page-privacy .doc-intro__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 600;
  color: var(--cyan);
}

.page-privacy .doc-intro__side {
  display: none;
}

.page-privacy .doc-intro__vtext {
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ink-2);
  writing-mode: vertical-rl;
}

/* --- 主题图 --- */
.page-privacy .doc-figure {
  margin: clamp(30px, 5vw, 54px) 0 0;
  border: 1px solid var(--doc-line);
  border-radius: 4px;
  background: var(--bg-panel);
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(164, 92, 255, 0.16), 0 26px 62px -34px rgba(164, 92, 255, 0.55);
}

.page-privacy .doc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-privacy .doc-figure figcaption {
  padding: 14px 18px 16px;
  border-top: 1px solid var(--doc-line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* --- 目录 --- */
.page-privacy .doc-toc {
  margin-top: clamp(32px, 5vw, 58px);
  padding: clamp(20px, 3vw, 30px) clamp(18px, 3vw, 32px);
  border: 1px solid var(--doc-line);
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(164, 92, 255, 0.11), rgba(164, 92, 255, 0) 62%),
    var(--doc-panel);
}

.page-privacy .doc-toc__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-privacy .doc-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--doc-line-soft);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.page-privacy .doc-toc__list a:hover,
.page-privacy .doc-toc__list a:focus-visible {
  color: var(--cyan);
  padding-left: 10px;
}

.page-privacy .doc-toc__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.page-privacy .doc-toc__list a:hover .doc-toc__num {
  color: var(--cyan);
}

/* --- 章节骨架 --- */
.page-privacy .doc-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding-top: clamp(38px, 6vw, 68px);
  scroll-margin-top: 88px;
}

.page-privacy .doc-section + .doc-section {
  border-top: 1px solid var(--doc-line-soft);
}

.page-privacy .doc-section__num {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-privacy .doc-section__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-privacy .doc-section__annot {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-2);
}

.page-privacy .doc-section__body {
  min-width: 0;
}

.page-privacy .doc-section h2 {
  margin: 0 0 20px;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-privacy .doc-section h2::after {
  content: "";
  display: block;
  width: 54px;
  height: 2px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--neon), var(--cyan));
}

.page-privacy .doc-section__body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-privacy .doc-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 255, 0.45);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-privacy .doc-inline-link:hover,
.page-privacy .doc-inline-link:focus-visible {
  color: var(--ink);
  border-color: var(--neon);
}

/* --- 条目列表 --- */
.page-privacy .doc-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-privacy .doc-list > li {
  position: relative;
  padding: 16px 18px 16px 48px;
  border: 1px solid var(--doc-line-soft);
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(164, 92, 255, 0.08), rgba(164, 92, 255, 0) 58%);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-privacy .doc-list > li:hover {
  border-color: rgba(164, 92, 255, 0.55);
}

.page-privacy .doc-list > li::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 23px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(47, 224, 255, 0.6);
}

.page-privacy .doc-list strong {
  color: var(--ink);
  font-weight: 600;
}

/* --- 引用块 --- */
.page-privacy .doc-note {
  margin: 22px 0 0;
  padding: 18px 22px;
  border-left: 2px solid var(--gold);
  border-radius: 0 4px 4px 0;
  background: linear-gradient(90deg, rgba(255, 196, 77, 0.11), rgba(255, 196, 77, 0) 76%);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-privacy .doc-note__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

/* --- 数据流向示意 --- */
.page-privacy .doc-flow {
  margin: 26px 0 0;
  padding: 18px;
  border: 1px solid var(--doc-line);
  border-radius: 4px;
  background: rgba(7, 4, 17, 0.6);
  overflow-x: auto;
}

.page-privacy .doc-flow svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-privacy .flow-node rect {
  fill: rgba(164, 92, 255, 0.1);
  stroke: var(--line);
  stroke-width: 1;
}

.page-privacy .flow-node--use rect {
  fill: rgba(47, 224, 255, 0.1);
  stroke: rgba(47, 224, 255, 0.42);
}

.page-privacy .flow-node text {
  fill: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  text-anchor: middle;
  dominant-baseline: middle;
}

.page-privacy .flow-link {
  stroke: var(--cyan);
  stroke-width: 1.4;
  stroke-dasharray: 6 5;
  opacity: 0.72;
}

.page-privacy .doc-flow figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ink-2);
}

/* --- 折叠面板 --- */
.page-privacy .doc-fold {
  margin-top: 22px;
  border: 1px solid var(--doc-line-soft);
  border-radius: 4px;
  background: var(--doc-panel);
}

.page-privacy .doc-fold > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.18s var(--ease);
}

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

.page-privacy .doc-fold > summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--neon);
}

.page-privacy .doc-fold[open] > summary::before {
  content: "–";
  color: var(--cyan);
}

.page-privacy .doc-fold > summary:hover,
.page-privacy .doc-fold > summary:focus-visible {
  color: var(--cyan);
}

.page-privacy .doc-fold__body {
  padding: 0 18px 18px 50px;
}

.page-privacy .doc-fold__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* --- 复制邮箱 --- */
.page-privacy .doc-copyrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 22px;
  padding: 16px 20px;
  border: 1px solid var(--doc-line);
  border-radius: 4px;
  background: rgba(21, 13, 43, 0.78);
}

.page-privacy .doc-copyrow__val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cyan);
  word-break: break-all;
}

.page-privacy .doc-copyrow__btn {
  margin-left: auto;
  appearance: none;
  cursor: pointer;
  padding: 9px 16px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--neon);
  border-radius: 2px;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-privacy .doc-copyrow__btn:hover,
.page-privacy .doc-copyrow__btn:focus-visible {
  background: rgba(164, 92, 255, 0.18);
  box-shadow: 0 0 0 1px var(--neon), 0 0 18px rgba(164, 92, 255, 0.35);
}

.page-privacy .doc-copyrow__btn[data-copied] {
  color: var(--mint);
  border-color: var(--mint);
}

/* --- 版本记录 --- */
.page-privacy .doc-versions {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--doc-line-soft);
}

.page-privacy .doc-versions > li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--doc-line-soft);
}

.page-privacy .doc-versions__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-privacy .doc-versions__t {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-privacy .doc-versions > li.is-current {
  background: linear-gradient(90deg, rgba(53, 240, 192, 0.08), rgba(53, 240, 192, 0) 70%);
}

.page-privacy .doc-versions > li.is-current .doc-versions__v {
  color: var(--mint);
}

/* --- 后续入口 --- */
.page-privacy .doc-next {
  margin-top: clamp(48px, 7vw, 86px);
  padding-top: clamp(28px, 4vw, 42px);
  border-top: 1px solid var(--doc-line-soft);
}

.page-privacy .doc-next__grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-privacy .doc-next__card {
  display: grid;
  gap: 9px;
  padding: 20px;
  border: 1px solid var(--doc-line-soft);
  border-radius: 4px;
  background: var(--doc-panel);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-privacy .doc-next__card:hover,
.page-privacy .doc-next__card:focus-visible {
  border-color: var(--neon);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -24px rgba(164, 92, 255, 0.85);
}

.page-privacy .doc-next__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-privacy .doc-next__title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
}

/* --- 响应式 --- */
@media (min-width: 640px) {
  .page-privacy .doc-versions > li {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

  .page-privacy .doc-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 30px;
  }
}

@media (min-width: 860px) {
  .page-privacy .doc-section {
    grid-template-columns: var(--doc-numcol) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 44px);
  }

  .page-privacy .doc-section__num {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding-top: 6px;
  }

  .page-privacy .doc-section__annot {
    writing-mode: vertical-rl;
  }

  .page-privacy .doc-section__body {
    max-width: var(--doc-measure);
  }

  .page-privacy .doc-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-privacy .doc-intro__grid {
    grid-template-columns: minmax(0, 1fr) 72px;
    align-items: start;
  }

  .page-privacy .doc-intro__side {
    display: flex;
    justify-content: center;
    padding-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy *,
  .page-privacy *::before,
  .page-privacy *::after {
    transition-duration: 0.001ms !important;
  }

  .page-privacy .doc-next__card:hover,
  .page-privacy .doc-next__card:focus-visible {
    transform: none;
  }
}