.page-privacy {
  --doc-measure: 46rem;
  --grid-line: rgba(107, 106, 100, 0.13);
  --hairline: rgba(107, 106, 100, 0.28);
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* 面包屑 */
.page-privacy .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 4vw, 36px);
  font-size: 14px;
  color: var(--rock);
}

.page-privacy .breadcrumbs .breadcrumb-item {
  color: var(--rock);
  text-decoration: none;
}

.page-privacy .breadcrumbs a.breadcrumb-item:hover,
.page-privacy .breadcrumbs a.breadcrumb-item:focus-visible {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-privacy .breadcrumb-sep {
  color: var(--silver);
}

/* 首屏 */
.page-privacy .privacy-hero {
  position: relative;
  margin-top: clamp(20px, 3vw, 34px);
  padding-block: clamp(28px, 5vw, 56px) clamp(24px, 4vw, 44px);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--hairline) 18%, var(--hairline) 82%, transparent);
}

.page-privacy .privacy-hero-inner {
  max-width: 56rem;
}

.page-privacy .section-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-privacy .privacy-title {
  margin: 14px 0 20px;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-lead {
  max-width: 44rem;
  margin: 0;
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink);
}

.page-privacy .privacy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-privacy .privacy-meta .mono {
  margin-right: 6px;
  color: var(--ink);
  letter-spacing: 0.04em;
}

.page-privacy .privacy-meta a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(4, 107, 112, 0.35);
}

.page-privacy .privacy-meta a:hover,
.page-privacy .privacy-meta a:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--teal);
}

/* 首屏配图 */
.page-privacy .privacy-visual {
  margin: clamp(28px, 4vw, 52px) 0 0;
}

.page-privacy .privacy-visual .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-privacy .media-frame-caption {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

/* 正文骨架 */
.page-privacy .privacy-body {
  margin-top: clamp(44px, 6vw, 80px);
  padding-bottom: clamp(40px, 6vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

/* 章节索引 */
.page-privacy .index-rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
  scrollbar-width: thin;
}

.page-privacy .index-rail .rail-link {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 6px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--pill);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--rock);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .index-rail .rail-link:hover,
.page-privacy .index-rail .rail-link:focus-visible {
  border-color: var(--cyan);
  color: var(--teal);
  background: rgba(0, 200, 206, 0.08);
}

.page-privacy .index-rail .rail-link.is-active,
.page-privacy .index-rail .rail-link[aria-current="true"] {
  border-color: var(--cyan);
  color: var(--ink);
  background: rgba(0, 200, 206, 0.16);
}

/* 文档主体 */
.page-privacy .privacy-doc {
  max-width: var(--doc-measure);
}

.page-privacy .doc-section {
  padding-block: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--hairline);
  scroll-margin-top: 96px;
}

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

.page-privacy .doc-section .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-privacy .doc-section .section-num {
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--rust);
}

.page-privacy .doc-section .section-title {
  margin: 0;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-doc p {
  margin: 0 0 1.2em;
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink);
}

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

.page-privacy .privacy-doc a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(4, 107, 112, 0.35);
}

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

/* 强调卡片 */
.page-privacy .doc-card {
  margin: 1.6em 0;
  padding: 18px 22px;
  border-left: 3px solid var(--rust);
  border-radius: var(--radius-sm);
  background: rgba(223, 205, 169, 0.42);
}

.page-privacy .doc-card p {
  font-size: 15.5px;
  line-height: 1.9;
}

.page-privacy .doc-card-title {
  margin-bottom: 8px !important;
  font-weight: 700;
  letter-spacing: 0.01em;
}

/* 折叠说明 */
.page-privacy .doc-details {
  margin: 1.6em 0;
  padding: 2px 20px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.4);
}

.page-privacy .doc-details summary {
  padding: 14px 0;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .doc-details summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
  color: var(--rust);
}

.page-privacy .doc-details[open] summary::before {
  content: "–";
}

.page-privacy .doc-details summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-privacy .doc-details-body {
  padding: 4px 0 16px;
  border-top: 1px dashed var(--hairline);
}

.page-privacy .doc-details-body p {
  margin: 0.9em 0 0;
  font-size: 15.5px;
  color: var(--rock);
}

.page-privacy .doc-steps,
.page-privacy .doc-history {
  margin: 14px 0 0;
  padding-left: 1.2em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink);
}

.page-privacy .doc-steps li,
.page-privacy .doc-history li {
  margin-bottom: 0.7em;
}

.page-privacy .doc-history {
  list-style: none;
  padding-left: 0;
}

.page-privacy .doc-history .mono {
  display: block;
  margin-bottom: 2px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--rust-deep);
}

/* 下一步 */
.page-privacy .next-step {
  display: grid;
  gap: 14px;
  margin-top: clamp(36px, 5vw, 56px);
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--radius-lg);
  background: var(--night);
  color: var(--paper);
}

.page-privacy .next-step .next-step-num {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-privacy .next-step .next-step-title {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.45;
  color: var(--paper);
}

.page-privacy .next-step .next-step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-privacy .next-step .next-step-link {
  justify-self: start;
}

/* 桌面布局 */
@media (min-width: 900px) {
  .page-privacy .privacy-body {
    grid-template-columns: 216px minmax(0, var(--doc-measure));
    justify-content: center;
    gap: clamp(40px, 5vw, 64px);
    align-items: start;
  }

  .page-privacy .index-rail {
    display: grid;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--hairline);
    padding-left: 0;
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-privacy .index-rail .rail-link {
    white-space: normal;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 7px 12px;
    margin-left: -1px;
    font-size: 13px;
    line-height: 1.5;
  }

  .page-privacy .index-rail .rail-link:hover,
  .page-privacy .index-rail .rail-link:focus-visible {
    background: rgba(0, 200, 206, 0.08);
  }

  .page-privacy .index-rail .rail-link.is-active,
  .page-privacy .index-rail .rail-link[aria-current="true"] {
    border-left-color: var(--cyan);
    background: rgba(0, 200, 206, 0.12);
  }

  .page-privacy .next-step {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
  }

  .page-privacy .next-step .next-step-num {
    align-self: start;
    padding-top: 4px;
  }

  .page-privacy .next-step .next-step-link {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .index-rail .rail-link {
    transition: none;
  }
}