.page-privacy {
  --privacy-rail-w: 48px;
  --privacy-measure: 68ch;
  --privacy-divide: 1px solid rgba(140, 147, 166, .28);
}

/* ---------- 页首 ---------- */
.page-privacy .privacy-masthead {
  max-width: 780px;
  padding-top: clamp(20px, 3.5vw, 42px);
  padding-bottom: clamp(18px, 2.5vw, 28px);
}

.page-privacy .privacy-masthead h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 72px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-privacy .privacy-lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: var(--t-18);
  line-height: 2;
  color: var(--mist);
}

.page-privacy .privacy-banner {
  position: relative;
  margin: clamp(16px, 2.5vw, 28px) 0 clamp(28px, 4vw, 52px);
  border: var(--line-gold);
  overflow: hidden;
  background: var(--ink);
}

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

.page-privacy .privacy-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(16, 27, 59, 0) 42%, rgba(16, 27, 59, .62) 100%);
}

/* ---------- 版式骨架 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 3vw, 36px);
  padding-bottom: clamp(40px, 6vw, 96px);
}

.page-privacy .privacy-rail {
  display: none;
}

.page-privacy .privacy-article {
  min-width: 0;
  max-width: var(--privacy-measure);
  font-size: var(--t-18);
}

/* ---------- 条目 ---------- */
.page-privacy .privacy-section {
  border-top: var(--privacy-divide);
  padding-block: clamp(26px, 4vw, 44px);
}

.page-privacy .privacy-section:first-of-type {
  border-top: 0;
  padding-top: clamp(8px, 1.5vw, 14px);
}

.page-privacy .privacy-sec-num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--t-13);
  letter-spacing: .24em;
  color: var(--crimson);
}

.page-privacy .privacy-section h2 {
  position: relative;
  margin: 0 0 22px;
  padding-left: 34px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3vw, 28px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-privacy .privacy-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 20px;
  height: 2px;
  background: var(--crimson);
}

.page-privacy .privacy-section h3 {
  margin: 26px 0 10px;
  font-family: var(--font-body);
  font-size: var(--t-16);
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--barley);
}

.page-privacy .privacy-section p,
.page-privacy .privacy-next p {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-size: var(--t-18);
  line-height: 2;
  color: var(--paper);
}

.page-privacy .privacy-list {
  margin: 0 0 clamp(16px, 2vw, 24px);
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-list li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 24px;
  font-size: var(--t-18);
  line-height: 2;
  color: var(--paper);
}

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

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 1em;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

.page-privacy .privacy-list li strong {
  color: var(--turquoise);
  font-weight: 700;
}

/* ---------- 用途列表 ---------- */
.page-privacy .privacy-use {
  display: grid;
  gap: 18px;
  margin: 0 0 clamp(16px, 2vw, 24px);
  padding: 0;
}

.page-privacy .privacy-use__item {
  padding-left: 18px;
  border-left: 1px solid rgba(227, 178, 60, .34);
}

.page-privacy .privacy-use dt {
  font-size: var(--t-18);
  font-weight: 700;
  line-height: 1.6;
  color: var(--barley);
}

.page-privacy .privacy-use dd {
  margin: 6px 0 0;
  font-size: var(--t-18);
  line-height: 1.9;
  color: var(--paper);
}

/* ---------- 浅底摘要 ---------- */
.page-privacy .privacy-summary {
  margin: clamp(22px, 3vw, 32px) 0;
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 28px);
  background: var(--paper);
  color: var(--ink-deep);
  border-left: 3px solid var(--crimson);
  font-size: var(--t-18);
  line-height: 1.9;
  font-weight: 500;
  box-shadow: 0 10px 26px rgba(6, 12, 30, .35);
}

/* ---------- 文章内链接 ---------- */
.page-privacy :where(.privacy-article a:not(.btn)) {
  color: var(--turquoise);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: rgba(23, 163, 152, .55);
  transition: color 160ms var(--ease);
}

.page-privacy :where(.privacy-article a:not(.btn)):hover {
  color: var(--barley);
}

.page-privacy .privacy-summary a {
  color: var(--clay);
  text-decoration-color: rgba(180, 89, 59, .55);
}

.page-privacy .privacy-summary a:hover {
  color: var(--crimson);
}

/* ---------- 收尾 ---------- */
.page-privacy .privacy-next {
  border-top: var(--privacy-divide);
  padding-block: clamp(28px, 4vw, 44px) 0;
}

.page-privacy .privacy-next h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3vw, 28px);
  line-height: 1.35;
  color: var(--paper);
}

.page-privacy .privacy-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-privacy .privacy-top {
  display: inline-block;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: var(--t-13);
  letter-spacing: .12em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(174, 182, 204, .4);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-privacy .privacy-top:hover {
  color: var(--barley);
  border-bottom-color: var(--gold);
}

/* ---------- 桌面：竖排条目索引 ---------- */
@media (min-width: 900px) {
  .page-privacy .privacy-layout {
    grid-template-columns: calc(var(--privacy-rail-w) + 36px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 88px);
    padding-top: 10px;
  }

  .page-privacy .privacy-rail {
    display: block;
    position: sticky;
    top: calc(var(--bar-h) + 40px);
    align-self: start;
    width: var(--privacy-rail-w);
  }

  .page-privacy .privacy-rail__list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 26px;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .page-privacy .privacy-rail__link {
    display: block;
    padding: 8px 4px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-mono);
    font-size: var(--t-13);
    letter-spacing: .22em;
    line-height: 1;
    color: var(--mist);
    text-decoration: none;
    transition: color 160ms var(--ease);
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    color: var(--gold);
  }

  .page-privacy .privacy-sec-num {
    display: none;
  }

  .page-privacy .privacy-section h2 {
    padding-left: 38px;
  }

  .page-privacy .privacy-section h2::before {
    width: 22px;
  }

  .page-privacy .privacy-article {
    padding-top: 4px;
  }
}

@media (min-width: 1200px) {
  .page-privacy .privacy-masthead {
    padding-top: clamp(32px, 4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy * {
    transition: none !important;
  }
}