.page-privacy {
  --pv-col: 880px;
  --pv-no-w: 72px;
  --pv-no-gap: 24px;
  --pv-shadow: 0 10px 28px rgba(5, 8, 15, 0.45);
  padding-bottom: clamp(72px, 10vw, 120px);
  font-family: var(--font-body);
}

.page-privacy .privacy-head,
.page-privacy .privacy-visual,
.page-privacy .privacy-toc,
.page-privacy .clauses {
  max-width: var(--pv-col);
  margin-inline: auto;
}

/* ---------- 标题区 ---------- */
.page-privacy .privacy-head {
  padding-top: clamp(24px, 4.5vw, 52px);
}

.page-privacy .privacy-head__eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 18px;
}

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

.page-privacy .privacy-head__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 48px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.page-privacy .privacy-head__lede {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink);
  opacity: 0.9;
}

.page-privacy .privacy-head__meta {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

/* ---------- 头图 ---------- */
.page-privacy .privacy-visual {
  position: relative;
  margin-top: clamp(26px, 4vw, 44px);
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-privacy .privacy-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--c-line);
  filter: saturate(0.8) contrast(1.05) brightness(0.86);
}

.page-privacy .privacy-visual::after {
  content: "";
  position: absolute;
  inset: 1px;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--c-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-line-soft) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.3;
}

/* ---------- 条款目录 ---------- */
.page-privacy .privacy-toc {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-privacy .privacy-toc__list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--c-line);
}

.page-privacy .privacy-toc__list li {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line-soft);
  background: var(--c-panel);
  color: var(--c-muted);
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy .privacy-toc__list a::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  background: var(--c-accent);
}

.page-privacy .privacy-toc__list a:hover,
.page-privacy .privacy-toc__list a:focus-visible {
  color: var(--c-ink);
  border-color: var(--c-accent-soft);
  background: var(--c-deep);
}

/* ---------- 条款主体 ---------- */
.page-privacy .clauses {
  position: relative;
}

.page-privacy .clause {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0 24px 18px;
  border-left: 1px solid var(--c-line-soft);
  scroll-margin-top: 104px;
  transition: background-color 0.24s var(--ease);
}

.page-privacy .clause:target {
  background: linear-gradient(105deg, rgba(255, 106, 43, 0.07) 0%, rgba(255, 106, 43, 0) 58%);
}

.page-privacy .clause__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
  transition: color 0.2s var(--ease);
}

.page-privacy .clause:target .clause__no {
  color: var(--c-accent);
}

.page-privacy .clause__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--c-ink);
}

.page-privacy .clause__body > p {
  margin: 0 0 12px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-ink);
  opacity: 0.88;
}

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

.page-privacy .clause__body a {
  color: var(--c-ink);
  text-decoration: underline;
  text-decoration-color: var(--c-accent-soft);
  text-underline-offset: 3px;
  transition: color 0.2s var(--ease), text-decoration-color 0.2s var(--ease);
}

.page-privacy .clause__body a:hover,
.page-privacy .clause__body a:focus-visible {
  color: var(--c-accent);
  text-decoration-color: var(--c-accent);
}

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

/* ---------- 期限清单 ---------- */
.page-privacy .kv {
  margin: 4px 0 14px;
  padding: 0;
  max-width: 66ch;
  list-style: none;
  border-top: 1px solid var(--c-line-soft);
}

.page-privacy .kv li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line-soft);
  font-size: 14px;
  line-height: 1.5;
}

.page-privacy .kv__k {
  color: var(--c-muted);
}

.page-privacy .kv__v {
  font-size: 14px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--c-data);
}

/* ---------- 摘要块 ---------- */
.page-privacy .brief {
  margin-top: 16px;
  max-width: 66ch;
  padding: 14px 16px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left-width: 2px;
  border-left-color: var(--c-accent-soft);
  box-shadow: var(--pv-shadow);
}

.page-privacy .brief__summary {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-amber);
}

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

.page-privacy .brief__summary::after {
  content: "收起";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-privacy .brief:not([open]) .brief__summary::after {
  content: "展开";
}

.page-privacy .brief__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-ink);
  opacity: 0.85;
}

/* ---------- 联系信息 ---------- */
.page-privacy .contact-list {
  margin: 4px 0 16px;
  max-width: 66ch;
  border-top: 1px solid var(--c-line-soft);
}

.page-privacy .contact-list > div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-privacy .contact-list dt {
  font-size: 13px;
  color: var(--c-muted);
}

.page-privacy .contact-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ink);
  overflow-wrap: anywhere;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 820px) {
  .page-privacy .clause {
    grid-template-columns: var(--pv-no-w) minmax(0, 1fr);
    gap: 0 var(--pv-no-gap);
    padding: 30px 0;
    border-left: 0;
  }

  .page-privacy .clauses::before {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: calc(var(--pv-no-w) + (var(--pv-no-gap) / 2));
    width: 1px;
    background-image: repeating-linear-gradient(
      to bottom,
      var(--c-line) 0 7px,
      transparent 7px 13px
    );
  }

  .page-privacy .clause__no {
    padding-top: 6px;
    text-align: right;
  }

  .page-privacy .clause__title {
    font-size: 21px;
  }
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 560px) {
  .page-privacy .clause {
    padding: 20px 0 20px 14px;
  }

  .page-privacy .privacy-toc__list a {
    padding: 7px 10px;
    font-size: 12px;
  }

  .page-privacy .contact-list > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-privacy .kv li {
    flex-direction: column;
    gap: 2px;
  }
}