.page-privacy {
  --prv-num-col: 72px;
  --prv-measure: 34em;
}

.page-privacy .prv-hero {
  padding-top: 30px;
}

.page-privacy .prv-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 12vw, 78px);
  line-height: 0.98;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-privacy .prv-title::after {
  content: "";
  display: block;
  width: 92px;
  height: 2px;
  margin-top: 16px;
  background: var(--cyan);
}

.page-privacy .prv-lede {
  max-width: var(--prv-measure);
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-privacy .prv-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.page-privacy .prv-meta .num {
  font-family: var(--font-mono);
}

.page-privacy .prv-meta__sep {
  color: var(--text-faint);
}

.page-privacy .prv-banner {
  margin-top: 26px;
}

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

.page-privacy .prv-layout {
  margin-top: 34px;
}

/* ---- 章节索引 ---- */
.page-privacy .prv-toc {
  margin-bottom: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line-2);
}

.page-privacy .prv-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-privacy .prv-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .prv-toc__list a {
  display: flex;
  gap: 10px;
  padding: 8px 2px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line-1);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-privacy .prv-toc__list a .num {
  flex: none;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-privacy .prv-toc__list a:hover {
  color: var(--cream);
  border-bottom-color: var(--hair-cyan);
}

.page-privacy .prv-toc__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---- 条款区块 ---- */
.page-privacy .prv-clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 26px 0;
  border-top: 1px solid var(--line-1);
  scroll-margin-top: 150px;
}

.page-privacy .prv-clause__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

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

.page-privacy .prv-clause__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 5.4vw, 30px);
  line-height: 1.12;
  color: var(--cream);
}

.page-privacy .prv-clause__body p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

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

.page-privacy .prv-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-privacy .prv-list li {
  position: relative;
  padding: 11px 0 11px 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
  border-top: 1px solid var(--line-1);
}

.page-privacy .prv-list li:last-child {
  border-bottom: 1px solid var(--line-1);
}

.page-privacy .prv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 6px;
  height: 6px;
  background: var(--moss);
}

.page-privacy .prv-list strong {
  color: var(--cream);
  font-weight: 600;
}

/* ---- 术语式说明 ---- */
.page-privacy .prv-terms {
  margin: 0 0 16px;
}

.page-privacy .prv-terms > div {
  padding: 12px 0;
  border-top: 1px solid var(--line-1);
}

.page-privacy .prv-terms > div:last-child {
  border-bottom: 1px solid var(--line-1);
}

.page-privacy .prv-terms dt {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

.page-privacy .prv-terms dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

/* ---- 折叠长条款 ---- */
.page-privacy .prv-more {
  margin: 4px 0 0;
  border: 1px solid var(--line-1);
  background: var(--ink-900);
}

.page-privacy .prv-more summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--cream);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .prv-more summary::before {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

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

.page-privacy .prv-more[open] summary {
  border-bottom: 1px solid var(--line-1);
}

.page-privacy .prv-more summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-privacy .prv-more__body {
  padding: 14px 16px 18px;
}

.page-privacy .prv-more__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

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

/* ---- 联系渠道 ---- */
.page-privacy .prv-contact {
  margin: 4px 0 16px;
  padding: 8px 18px;
  background: var(--ink-900);
  border-left: 2px solid var(--cyan);
}

.page-privacy .prv-contact__row {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-1);
}

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

.page-privacy .prv-contact__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-faint);
}

.page-privacy .prv-contact__value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

/* ---- 页尾 ---- */
.page-privacy .prv-tail {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line-2);
  display: grid;
  gap: 24px;
}

.page-privacy .prv-links__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-privacy .prv-links {
  display: grid;
}

.page-privacy .prv-links a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid var(--line-1);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-privacy .prv-links a span:last-child {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-privacy .prv-links a:hover {
  border-bottom-color: var(--hair-cyan);
}

.page-privacy .prv-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-privacy .prv-backtop {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid var(--hair-cyan);
  transition: background-color 180ms ease, color 180ms ease;
}

.page-privacy .prv-backtop:hover {
  background: rgba(34, 211, 238, 0.10);
  color: var(--cream);
}

.page-privacy .prv-backtop:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-privacy .prv-docfoot {
  font-size: 12px;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-privacy .prv-docfoot p {
  margin: 0 0 6px;
}

.page-privacy .prv-docfoot .num {
  font-family: var(--font-mono);
  color: var(--text-dim);
}

/* ---- 响应式 ---- */
@media (min-width: 600px) {
  .page-privacy .prv-toc__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }

  .page-privacy .prv-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-privacy .prv-layout {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-privacy .prv-toc {
    position: sticky;
    top: 130px;
    margin-bottom: 0;
  }

  .page-privacy .prv-toc__list {
    grid-template-columns: 1fr;
  }

  .page-privacy .prv-clause {
    grid-template-columns: var(--prv-num-col) minmax(0, 1fr);
    gap: 26px;
    padding: 42px 0;
  }

  .page-privacy .prv-clause__num {
    padding-top: 7px;
  }

  .page-privacy .prv-tail {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .prv-toc__list a,
  .page-privacy .prv-links a,
  .page-privacy .prv-backtop {
    transition: none;
  }
}