.page-privacy {
  --privacy-measure: 38rem;
  --privacy-fold-shadow: 4px 4px 0 -1px var(--paper);
  position: relative;
  overflow-x: clip;
  background-color: var(--porcelain);
  color: var(--text-body);
}

.page-privacy::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0, #000 6%, #000 94%, transparent 100%);
}

.page-privacy .privacy-shell {
  position: relative;
  z-index: 1;
  padding-block: clamp(36px, 6vw, 70px) clamp(72px, 10vw, 128px);
}

/* 右侧纵向刻度线 */
.page-privacy .privacy-ruler {
  display: none;
}

.page-privacy .privacy-ruler::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 14px;
}

/* 页首说明 */
.page-privacy .privacy-intro {
  max-width: var(--privacy-measure);
  margin-inline: 0 auto;
  padding-bottom: clamp(24px, 3.5vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-intro .eyebrow {
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  color: var(--cinnabar);
}

.page-privacy .privacy-intro h1 {
  margin: 0.42em 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  line-height: 1.28;
  letter-spacing: -0.012em;
  color: var(--ink);
}

.page-privacy .privacy-intro .lede {
  margin: 1em 0 0;
  color: var(--text-muted);
}

/* 顶部窄幅图 */
.page-privacy .privacy-visual {
  max-width: var(--privacy-measure);
  margin: clamp(26px, 4vw, 46px) 0 0;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background-color: var(--ink);
}

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

.page-privacy .media-frame__caption {
  color: var(--text-muted);
}

/* 条款整体 */
.page-privacy .privacy-clauses {
  max-width: var(--privacy-measure);
  margin-inline: 0 auto;
  margin-top: clamp(30px, 4.6vw, 54px);
}

.page-privacy .privacy-clause {
  padding-block: clamp(26px, 3.6vw, 42px);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-clause:first-child {
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-clause__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-privacy .privacy-clause__no {
  flex: none;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
  transition: color 220ms var(--ease);
}

.page-privacy .privacy-clause:hover .privacy-clause__no {
  color: var(--cinnabar);
}

.page-privacy .privacy-clause__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.12rem, 2.5vw, 1.42rem);
  line-height: 1.42;
  color: var(--ink);
}

.page-privacy .privacy-clause__note {
  margin: 0 0 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* 编号条款：悬挂标号 + 缩进正文 */
.page-privacy .clauses {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.05em;
}

.page-privacy .clause {
  display: grid;
  grid-template-columns: 2.7rem minmax(0, 1fr);
  grid-template-areas:
    "no title"
    "no body";
  column-gap: 0.55rem;
}

.page-privacy .clause__no {
  grid-area: no;
  align-self: start;
  padding-top: 0.16em;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-privacy .clause__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--ink);
}

.page-privacy .clause__body {
  grid-area: body;
  margin: 0.28em 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text-body);
}

.page-privacy .clause__body .mono,
.page-privacy .privacy-mail {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0.01em;
}

.page-privacy .privacy-mail {
  color: var(--ink);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
  word-break: break-all;
}

/* 折叠条目 */
.page-privacy .privacy-fold {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-privacy .privacy-fold .disclosure {
  border: 1px solid var(--line);
  background: rgba(247, 245, 240, 0.78);
  box-shadow: var(--privacy-fold-shadow);
}

.page-privacy .privacy-fold .disclosure > summary {
  padding: 12px 14px;
  font-weight: 600;
  color: var(--ink);
}

.page-privacy .privacy-fold .disclosure__body {
  padding: 0 14px 14px;
}

.page-privacy .privacy-fold .disclosure__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--text-body);
}

/* 相关页面 */
.page-privacy .privacy-refs {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-privacy .privacy-refs__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-privacy .privacy-refs a {
  font-size: 0.9rem;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 64, 47, 0.32);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-privacy .privacy-refs a:hover {
  color: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}

/* 回到页首 */
.page-privacy .privacy-top {
  display: none;
}

/* 中等屏幕：条款标号略放宽 */
@media (min-width: 640px) {
  .page-privacy .clause {
    grid-template-columns: 3.2rem minmax(0, 1fr);
    column-gap: 0.75rem;
  }

  .page-privacy .privacy-visual {
    aspect-ratio: 16 / 5;
  }
}

@media (min-width: 1024px) {
  .page-privacy .privacy-intro,
  .page-privacy .privacy-clauses,
  .page-privacy .privacy-visual {
    padding-left: clamp(0px, 2vw, 34px);
  }

  .page-privacy .privacy-ruler {
    display: block;
    position: absolute;
    top: clamp(36px, 6vw, 70px);
    bottom: clamp(72px, 10vw, 128px);
    right: 0;
    width: 1px;
    background: var(--line);
  }

  .page-privacy .privacy-ruler::after {
    inset: 0 auto 0 0;
    width: 1px;
    right: 0;
    left: auto;
    background-image: repeating-linear-gradient(
      to bottom,
      var(--line-strong) 0 1px,
      transparent 1px 26px
    );
  }

  .page-privacy .privacy-top {
    display: inline-flex;
    align-items: center;
    position: fixed;
    right: clamp(20px, 3vw, 40px);
    bottom: clamp(20px, 3vw, 34px);
    z-index: 20;
    padding: 0.66em 1.05em;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    color: var(--porcelain);
    background: var(--ink);
    border: 1px solid var(--gold);
    border-radius: var(--radius);
    text-decoration: none;
    transition: background-color 200ms var(--ease), transform 200ms var(--ease);
  }

  .page-privacy .privacy-top:hover {
    background: var(--ink-soft);
    transform: translateY(-2px);
  }

  .page-privacy .privacy-top:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-clause__no,
  .page-privacy .privacy-refs a,
  .page-privacy .privacy-top {
    transition: none;
  }

  .page-privacy .privacy-top:hover {
    transform: none;
  }
}