.page-privacy {
  --priv-rail-w: 208px;
  --priv-measure: 58ch;
  --priv-accent-paper: #9A4A0F;
  --priv-ink-paper: #1B1410;
  width: 100%;
  max-width: var(--shell-w);
  margin: 0 auto;
  padding: 16px clamp(14px, 4vw, 28px) 76px;
  color: var(--text);
}

.page-privacy .breadcrumb {
  margin-bottom: 14px;
}

/* ---------- 首屏框景 ---------- */
.page-privacy .priv-hero {
  position: relative;
}

.page-privacy .priv-hero .frame {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 5vw, 42px) clamp(16px, 4vw, 38px) clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(138, 107, 255, 0.2), transparent 62%),
    radial-gradient(80% 70% at 90% 10%, rgba(47, 227, 192, 0.15), transparent 66%),
    linear-gradient(165deg, #101A23 0%, var(--ink-900) 70%);
}

.page-privacy .priv-hero__slash {
  position: absolute;
  left: -14%;
  right: -14%;
  top: 20%;
  height: clamp(70px, 15vw, 150px);
  background: linear-gradient(96deg, rgba(47, 227, 192, 0.24), rgba(138, 107, 255, 0.18) 52%, rgba(255, 138, 61, 0) 88%);
  transform: rotate(-8deg);
  filter: blur(2px);
  opacity: 0.85;
  pointer-events: none;
}

.page-privacy .priv-hero__grid {
  position: relative;
  display: grid;
  gap: 24px;
}

.page-privacy .priv-hero__copy {
  position: relative;
}

.page-privacy .priv-hero__copy .eyebrow {
  margin: 0 0 14px;
}

.page-privacy .priv-hero h1 {
  margin: 0 0 16px;
  max-width: 20ch;
  font-size: clamp(28px, 7.6vw, 56px);
  line-height: 1.14;
  letter-spacing: 0.03em;
  font-weight: 900;
  color: var(--title);
}

.page-privacy .priv-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-privacy .priv-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-privacy .priv-hero__meta .mono {
  color: var(--neon);
}

.page-privacy .priv-hero__media {
  margin: 0;
  align-self: start;
}

.page-privacy .priv-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .priv-hero__media .media-frame__cap {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-privacy .priv-layout {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-privacy .priv-rail__cap {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-privacy .priv-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-privacy .priv-rail__item {
  flex: 0 0 auto;
}

.page-privacy .priv-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(19, 28, 36, 0.72);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease-out), border-color 0.18s var(--ease-out);
}

.page-privacy .priv-rail__num {
  color: var(--violet);
  font-size: 12px;
}

.page-privacy .priv-rail__link:hover,
.page-privacy .priv-rail__link:focus-visible {
  color: var(--neon);
  border-color: var(--neon);
  outline: none;
}

.page-privacy .priv-chapters {
  display: grid;
  gap: 32px;
  min-width: 0;
}

.page-privacy .chapter {
  scroll-margin-top: calc(var(--brand-bar-h) + 24px);
  min-width: 0;
}

.page-privacy .chapter__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .chapter__num {
  font-size: clamp(16px, 3.4vw, 20px);
  color: var(--neon);
  letter-spacing: 0.06em;
}

.page-privacy .chapter__title {
  margin: 0;
  font-size: clamp(20px, 5.2vw, 28px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--title);
  transition: color 0.2s var(--ease-out);
}

.page-privacy .chapter:target .chapter__title {
  color: var(--neon);
}

.page-privacy .chapter__body {
  padding: clamp(18px, 4vw, 26px) clamp(16px, 4vw, 28px);
  border-radius: 2px;
  font-size: 15px;
  line-height: 1.85;
}

.page-privacy .chapter__body p {
  margin: 0 0 16px;
  max-width: var(--priv-measure);
}

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

.page-privacy .chapter__body--paper {
  background: var(--paper);
  color: var(--priv-ink-paper);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.34);
}

.page-privacy .chapter__body--panel {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
}

.page-privacy .chapter__body--panel .priv-list__title {
  color: var(--title);
}

.page-privacy .chapter__body a {
  color: var(--violet);
  text-underline-offset: 3px;
}

.page-privacy .chapter__body--paper a {
  color: #4B33A8;
}

/* ---------- 编号条目 ---------- */
.page-privacy .priv-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-privacy .priv-list--tight {
  gap: 10px;
  margin-bottom: 14px;
}

.page-privacy .priv-list__item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
}

.page-privacy .priv-list__num {
  font-size: 13px;
  line-height: 1.7;
  color: var(--neon);
  letter-spacing: 0.04em;
}

.page-privacy .chapter__body--paper .priv-list__num {
  color: var(--priv-accent-paper);
}

.page-privacy .priv-list__title {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: inherit;
}

.page-privacy .priv-list__body p {
  margin: 0;
  max-width: var(--priv-measure);
}

/* ---------- 保存周期对照 ---------- */
.page-privacy .priv-facts {
  margin: 4px 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  border: 1px solid rgba(27, 20, 16, 0.16);
  background: rgba(27, 20, 16, 0.16);
}

.page-privacy .priv-fact {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--paper);
}

.page-privacy .priv-fact__k {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--priv-accent-paper);
}

.page-privacy .priv-fact__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--priv-ink-paper);
}

/* ---------- 可展开旁注 ---------- */
.page-privacy .priv-details {
  margin: 6px 0 4px;
  max-width: 62ch;
  border: 1px solid rgba(27, 20, 16, 0.22);
  background: rgba(255, 255, 255, 0.46);
}

.page-privacy .priv-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .priv-details summary::after {
  content: "＋";
  font-family: var(--mono);
  font-size: 15px;
  color: var(--priv-accent-paper);
}

.page-privacy .priv-details[open] summary::after {
  content: "－";
}

.page-privacy .priv-details__body {
  padding: 0 14px 14px;
  font-size: 14px;
  line-height: 1.8;
}

.page-privacy .priv-details__body .priv-list__title {
  font-size: 14px;
}

/* ---------- 联系区块 ---------- */
.page-privacy .priv-mail {
  display: inline-block;
  margin: 0 0 16px;
  padding: 10px 14px;
  border: 1px dashed rgba(27, 20, 16, 0.45);
  background: rgba(255, 255, 255, 0.55);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--priv-ink-paper);
  word-break: break-all;
}

.page-privacy .priv-notes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  max-width: var(--priv-measure);
  font-size: 14px;
}

.page-privacy .priv-notes li {
  position: relative;
  padding-left: 16px;
}

.page-privacy .priv-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--priv-accent-paper);
}

/* ---------- 页尾入口 ---------- */
.page-privacy .priv-links {
  margin-top: 46px;
}

.page-privacy .priv-links__title {
  margin: 0 0 16px;
  font-size: clamp(18px, 4.4vw, 22px);
  letter-spacing: 0.02em;
  color: var(--title);
}

.page-privacy .priv-links__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-privacy .priv-link {
  display: grid;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--line);
  background: rgba(19, 28, 36, 0.72);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.18s var(--ease-out), border-color 0.18s var(--ease-out);
}

.page-privacy .priv-link:hover,
.page-privacy .priv-link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--neon);
  outline: none;
}

.page-privacy .priv-link__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-privacy .priv-link__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--title);
}

.page-privacy .priv-link__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-privacy .priv-links__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .priv-fact {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }

  .page-privacy .priv-list__item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-privacy .priv-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 40px;
    align-items: start;
  }

  .page-privacy .priv-hero__lead {
    font-size: 17px;
  }
}

@media (min-width: 1000px) {
  .page-privacy .priv-layout {
    grid-template-columns: var(--priv-rail-w) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-privacy .priv-rail {
    position: sticky;
    top: calc(var(--brand-bar-h) + 28px);
  }

  .page-privacy .priv-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-privacy .priv-rail__item {
    flex: 0 0 auto;
    width: 100%;
  }

  .page-privacy .priv-rail__link {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border: none;
    border-left: 2px solid var(--line);
    border-radius: 0;
    background: none;
    white-space: normal;
    line-height: 1.6;
  }

  .page-privacy .priv-rail__link:hover,
  .page-privacy .priv-rail__link:focus-visible {
    border-left-color: var(--neon);
    background: rgba(47, 227, 192, 0.06);
  }

  .page-privacy .priv-links__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .priv-rail__link,
  .page-privacy .priv-link,
  .page-privacy .chapter__title {
    transition: none;
  }

  .page-privacy .priv-link:hover,
  .page-privacy .priv-link:focus-visible {
    transform: none;
  }
}