.page-privacy {
  --doc-measure: 640px;
  --doc-index-width: 216px;
  position: relative;
  background: var(--paper-50);
  color: var(--ink-text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-privacy .doc-hero {
  position: relative;
  padding: clamp(96px, 13vw, 152px) 0 clamp(48px, 6vw, 80px);
  overflow: hidden;
}

.page-privacy .doc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-light) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.45;
  pointer-events: none;
}

.page-privacy .doc-hero::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 58%;
  height: 160%;
  background: var(--ink-900);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  display: none;
}

.page-privacy .doc-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-privacy .doc-hero__text h1 {
  margin: 18px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.14;
}

.page-privacy .doc-hero__text .lede {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-privacy .doc-hero__points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 34em;
}

.page-privacy .doc-hero__points li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-privacy .doc-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 1px;
  background: var(--gold-600);
}

.page-privacy .doc-hero__figure {
  margin: 0;
  padding: 12px;
  background: var(--ink-700);
  border: 1px solid rgba(240, 196, 98, 0.35);
}

.page-privacy .doc-hero__figure .figure__frame {
  margin: 0;
}

.page-privacy .doc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-privacy .doc-hero__figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--paper-muted);
}

/* ---------- 主体两栏 ---------- */
.page-privacy .doc-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(64px, 9vw, 128px);
}

/* ---------- 侧边索引 ---------- */
.page-privacy .doc-index {
  align-self: start;
  border-top: 1px solid var(--gold-600);
  padding-top: 16px;
}

.page-privacy .doc-index__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--ink-faint);
}

.page-privacy .doc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  counter-reset: docidx;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .doc-index__list li {
  flex: 0 0 auto;
  counter-increment: docidx;
}

.page-privacy .doc-index__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-pill);
  font-size: var(--fs-14);
  color: var(--ink-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), background-color 0.2s var(--ease-out);
}

.page-privacy .doc-index__list a::before {
  content: counter(docidx, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: var(--fs-12);
  color: var(--gold-600);
}

.page-privacy .doc-index__list a:hover,
.page-privacy .doc-index__list a:focus-visible {
  color: var(--ink-900);
  border-color: var(--gold-600);
  background: var(--paper-200);
}

.page-privacy .doc-index__meta {
  margin: 18px 0 0;
  font-size: var(--fs-12);
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

/* ---------- 说明小节 ---------- */
.page-privacy .doc-article {
  min-width: 0;
  max-width: calc(var(--doc-measure) + 40px);
}

.page-privacy .doc-section {
  border-top: 1px solid var(--line-light);
  padding: clamp(26px, 4vw, 40px) 0 0;
  margin: 0 0 clamp(36px, 5vw, 56px);
}

.page-privacy .doc-section > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
}

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

.page-privacy .doc-section__num {
  padding-top: 0.5em;
  font-family: var(--font-num);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--gold-600);
}

.page-privacy .doc-section__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--fs-32);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--ink-text);
}

.page-privacy .doc-section__title::after {
  content: "";
  display: block;
  width: 52px;
  height: 1px;
  margin-top: 14px;
  background: var(--gold-600);
}

.page-privacy .doc-section__toggle {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 8px;
  border: 1px solid var(--line-light);
  border-radius: 50%;
  flex: none;
}

.page-privacy .doc-section__toggle::before,
.page-privacy .doc-section__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--gold-600);
  transform: translate(-50%, -50%);
}

.page-privacy .doc-section__toggle::before {
  width: 10px;
  height: 1px;
}

.page-privacy .doc-section__toggle::after {
  width: 1px;
  height: 10px;
  transition: transform 0.2s var(--ease-out);
}

.page-privacy .doc-section[open] .doc-section__toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-privacy .doc-section__body {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: var(--doc-measure);
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-privacy .doc-section__body p {
  margin: 0 0 1.1em;
}

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

.page-privacy .doc-section__body a {
  color: var(--blue-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(42, 91, 224, 0.35);
}

.page-privacy .doc-section__body a:hover,
.page-privacy .doc-section__body a:focus-visible {
  border-bottom-color: var(--blue-500);
}

/* ---------- 条目列表 ---------- */
.page-privacy .doc-facts {
  list-style: none;
  margin: 4px 0 26px;
  padding: 0;
  border-top: 1px solid var(--line-light);
}

.page-privacy .doc-facts li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-privacy .doc-facts__key {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-privacy .doc-facts__val {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-privacy .doc-note {
  border-left: 2px solid var(--gold-600);
  background: var(--paper-200);
  padding: 16px 18px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-privacy .term {
  border-bottom: 1px dashed var(--gold-600);
  color: var(--ink-900);
  cursor: help;
}

/* ---------- 联系方式 ---------- */
.page-privacy .doc-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 26px 0 0;
  padding: 20px;
  background: var(--paper-50);
  border: 1px solid var(--line-light);
  border-left: 3px solid var(--gold-600);
}

.page-privacy .doc-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line-light);
}

.page-privacy .doc-contact__row:last-child {
  border-bottom: 0;
}

.page-privacy .doc-contact__key {
  font-family: var(--font-serif);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

.page-privacy .doc-contact__val {
  font-family: var(--font-num);
  font-size: var(--fs-17);
  color: var(--ink-900);
  word-break: break-all;
}

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

/* ---------- 相关入口 ---------- */
.page-privacy .doc-related {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: 28px;
  border-top: 1px solid var(--ink-900);
}

.page-privacy .doc-related__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: var(--fs-14);
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

.page-privacy .doc-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-privacy .doc-links a {
  display: block;
  padding: 18px;
  background: var(--paper-50);
  border: 1px solid var(--line-light);
  color: inherit;
  text-decoration: none;
  transition: transform 0.24s var(--ease-out), border-color 0.24s var(--ease-out), box-shadow 0.24s var(--ease-out);
}

.page-privacy .doc-links a:hover,
.page-privacy .doc-links a:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold-600);
  box-shadow: 0 10px 24px rgba(192, 138, 46, 0.18);
}

.page-privacy .doc-links__label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-17);
  color: var(--ink-900);
}

.page-privacy .doc-links__desc {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-privacy .doc-facts li {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-privacy .doc-contact {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

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

@media (min-width: 900px) {
  .page-privacy .doc-hero::after {
    display: block;
  }

  .page-privacy .doc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 5vw, 72px);
  }
}

@media (min-width: 960px) {
  .page-privacy .doc-body {
    grid-template-columns: var(--doc-index-width) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
  }

  .page-privacy .doc-index {
    position: sticky;
    top: 112px;
  }

  .page-privacy .doc-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-privacy .doc-index__list a {
    padding: 10px 0;
    border: 0;
    border-bottom: 1px solid var(--line-light);
    border-radius: 0;
    white-space: normal;
    gap: 12px;
  }

  .page-privacy .doc-index__list li:first-child a {
    border-top: 1px solid var(--line-light);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .doc-index__list a,
  .page-privacy .doc-section__toggle::after,
  .page-privacy .doc-links a {
    transition: none;
  }

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