.page-privacy {
  --privacy-rail-w: 196px;
  --privacy-measure: 42rem;
  position: relative;
  background: var(--c-paper);
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-hero {
  padding-block: clamp(36px, 6vw, 76px) clamp(40px, 6vw, 84px);
  background: var(--c-paper);
  border-bottom: 1px solid var(--line-light);
}

.page-privacy .privacy-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(26px, 4vw, 48px);
}

.page-privacy .privacy-hero__text .annotation {
  display: block;
  color: var(--c-mid);
}

.page-privacy .privacy-hero__title {
  margin: 12px 0 0;
  color: var(--c-ink);
}

.page-privacy .privacy-hero__lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: clamp(16px, 1.45vw, 18px);
  line-height: 1.9;
  color: var(--ink-body);
}

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

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-light);
}

.page-privacy .privacy-hero__figure .media-frame__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mid);
}

/* ---------- 正文骨架 ---------- */

.page-privacy .privacy-body {
  padding-block: clamp(40px, 6vw, 88px) clamp(64px, 8vw, 120px);
  background: var(--c-paper);
}

.page-privacy .privacy-body__inner {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

/* ---------- 章节索引 ---------- */

.page-privacy .privacy-rail__label {
  display: block;
  margin: 0 0 14px;
  color: var(--c-mid);
}

.page-privacy .privacy-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
}

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--line-light);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-body);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .privacy-rail__link .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-flame);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--c-flame);
  border-top-color: var(--c-flame);
}

.page-privacy .privacy-rail__link:focus-visible {
  outline: 2px solid var(--c-flame);
  outline-offset: 2px;
}

/* ---------- 长文流 ---------- */

.page-privacy .privacy-flow {
  display: grid;
  gap: clamp(40px, 5vw, 68px);
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-sec {
  scroll-margin-top: calc(var(--header-upper-h) + var(--header-lower-h) + 28px);
}

.page-privacy .privacy-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-light);
}

.page-privacy .privacy-sec__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-flame);
}

.page-privacy .privacy-sec__title {
  margin: 0;
  font-size: clamp(20px, 2.3vw, 26px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-privacy .privacy-sec__intro,
.page-privacy .privacy-sec__text {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-body);
}

.page-privacy .privacy-sec__text + .privacy-sec__text {
  margin-top: 14px;
}

/* ---------- 定义式信息表 ---------- */

.page-privacy .privacy-terms {
  margin: 24px 0 0;
  border-top: 1px solid var(--line-light);
}

.page-privacy .privacy-terms__row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-privacy .privacy-terms dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-mid);
}

.page-privacy .privacy-terms dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-body);
}

/* ---------- 细线列表 ---------- */

.page-privacy .privacy-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-body);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 11px;
  height: 1px;
  background: var(--c-flame);
}

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

/* ---------- 浅灰提示块 ---------- */

.page-privacy .privacy-note {
  margin: 24px 0 0;
  padding: 18px 20px;
  background: var(--c-stone);
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink-body);
}

/* ---------- 联络面板 ---------- */

.page-privacy .privacy-contact {
  margin: 24px 0 0;
  padding: clamp(20px, 3vw, 30px);
  background: var(--c-deep);
}

.page-privacy .privacy-contact__row {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-privacy .privacy-contact__row:first-child {
  padding-top: 0;
}

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

.page-privacy .privacy-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-ember);
}

.page-privacy .privacy-contact__val {
  font-size: 16px;
  line-height: 1.7;
  color: var(--on-dark);
  word-break: break-word;
}

.page-privacy .privacy-link {
  color: var(--c-flame);
  text-decoration: none;
  border-bottom: 1px solid var(--c-flame);
}

.page-privacy .privacy-link:hover,
.page-privacy .privacy-link:focus-visible {
  color: var(--c-ember);
  border-bottom-color: var(--c-ember);
}

/* ---------- 相关说明 ---------- */

.page-privacy .privacy-tail {
  margin-top: clamp(8px, 2vw, 20px);
  padding-top: 22px;
  border-top: 1px solid var(--line-light);
}

.page-privacy .privacy-tail__text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-mid);
}

/* ---------- 返回顶部 ---------- */

.page-privacy .privacy-totop {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--c-ink);
  border: 1px solid var(--c-brick);
  color: var(--on-dark);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-privacy .privacy-totop .mono {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-flame);
  transition: color var(--dur) var(--ease);
}

.page-privacy .privacy-totop:hover,
.page-privacy .privacy-totop:focus-visible {
  background: var(--c-flame);
  border-color: var(--c-flame);
  color: var(--c-ink);
}

.page-privacy .privacy-totop:hover .mono,
.page-privacy .privacy-totop:focus-visible .mono {
  color: var(--c-ink);
}

.page-privacy .privacy-totop:focus-visible {
  outline: 2px solid var(--c-flame);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-privacy .privacy-terms__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-privacy .privacy-body__inner {
    grid-template-columns: var(--privacy-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--header-upper-h) + var(--header-lower-h) + 28px);
  }

  .page-privacy .privacy-rail__list {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (max-width: 420px) {
  .page-privacy .privacy-hero__title {
    font-size: 34px;
  }

  .page-privacy .privacy-totop {
    padding: 9px 13px;
    font-size: 12px;
  }
}

/* ---------- 打印 ---------- */

@media print {
  .page-privacy .privacy-rail,
  .page-privacy .privacy-totop,
  .page-privacy .media-frame__caption {
    display: none !important;
  }

  .page-privacy,
  .page-privacy .privacy-hero,
  .page-privacy .privacy-body,
  .page-privacy .privacy-note,
  .page-privacy .privacy-contact {
    background: #fff;
    color: #000;
  }

  .page-privacy .privacy-contact__val,
  .page-privacy .privacy-contact__key {
    color: #000;
  }

  .page-privacy .privacy-flow {
    max-width: none;
  }
}