.page-privacy {
  font-family: var(--font-sans);
  color: var(--white);
}

/* ---------- 页首 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(28px, 5vw, 52px) 0 clamp(40px, 7vw, 76px);
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-privacy .privacy-hero-media img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-privacy .privacy-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 11, 26, 0.55) 0%, rgba(5, 11, 26, 0.9) 62%, var(--ink) 100%),
    repeating-linear-gradient(90deg, rgba(22, 48, 92, 0.35) 0 1px, transparent 1px 96px);
}

.page-privacy .privacy-hero-inner {
  position: relative;
  display: grid;
  gap: 16px;
}

.page-privacy .privacy-hero .crumbs {
  margin: 0;
  font-size: 13px;
}

.page-privacy .privacy-hero h1 {
  margin: 0;
  max-width: 20em;
  font-size: clamp(2.1rem, 5.6vw, 3.7rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-hero .lede {
  margin: 0;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-privacy .privacy-glance {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 6px;
  max-width: 760px;
}

.page-privacy .glance-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 23, 48, 0.74);
}

.page-privacy .glance-key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .glance-val {
  display: block;
  font-size: 14px;
  line-height: 1.55;
  color: var(--white);
}

/* ---------- 双栏主体 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: clamp(40px, 6vw, 72px) 0 clamp(64px, 9vw, 112px);
}

.page-privacy .privacy-index {
  align-self: start;
  display: grid;
  gap: 12px;
  padding: 18px 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(11, 23, 48, 0.6);
}

.page-privacy .privacy-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-privacy .privacy-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .privacy-index-list a .mono {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .privacy-index-list a:hover,
.page-privacy .privacy-index-list a:focus-visible {
  color: var(--white);
  background-color: rgba(0, 229, 255, 0.08);
}

.page-privacy .privacy-index-note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 正文 ---------- */
.page-privacy .privacy-body {
  min-width: 0;
}

.page-privacy .privacy-section {
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-privacy .privacy-section + .privacy-section {
  margin-top: clamp(38px, 5vw, 66px);
}

.page-privacy .privacy-section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-privacy .privacy-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-privacy .privacy-section h2 {
  margin: 0;
  font-size: clamp(1.28rem, 2.8vw, 1.72rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-privacy .privacy-section > p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-privacy .privacy-section strong {
  color: var(--white);
  font-weight: 700;
}

.page-privacy .privacy-section .link {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 说明面板 ---------- */
.page-privacy .privacy-callout {
  margin-top: 22px;
  padding: 18px 20px;
  max-width: 40em;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.07), rgba(11, 23, 48, 0.6));
}

.page-privacy .privacy-section .privacy-callout-title {
  margin: 0 0 10px;
  max-width: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}

.page-privacy .privacy-callout ul {
  margin: 0;
  padding-left: 1.05em;
  display: grid;
  gap: 8px;
}

.page-privacy .privacy-callout li {
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 版本时间线 ---------- */
.page-privacy .privacy-versions {
  list-style: none;
  margin: 22px 0 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--line);
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-versions > li {
  position: relative;
}

.page-privacy .privacy-versions > li::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  box-shadow: 0 0 0 4px var(--ink);
}

.page-privacy .privacy-versions > li:first-child::before {
  background: var(--cyan);
}

.page-privacy .privacy-versions details {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 23, 48, 0.55);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .privacy-versions details:hover {
  border-color: rgba(0, 229, 255, 0.45);
}

.page-privacy .privacy-versions details[open] {
  border-color: rgba(0, 229, 255, 0.5);
  background: rgba(11, 23, 48, 0.82);
}

.page-privacy .privacy-versions summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--white);
}

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

.page-privacy .privacy-versions summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

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

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

.page-privacy .version-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .version-when {
  flex: none;
  padding: 2px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-privacy .version-title {
  font-weight: 600;
}

.page-privacy .version-body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}

.page-privacy .version-body p {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 结尾延伸 ---------- */
.page-privacy .privacy-next {
  margin-top: clamp(48px, 7vw, 84px);
  padding-top: clamp(24px, 4vw, 36px);
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-next h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.6vw, 1.5rem);
  font-weight: 800;
  color: var(--white);
}

.page-privacy .privacy-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.page-privacy .privacy-next-card {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 23, 48, 0.6);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--muted);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .privacy-next-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-privacy .privacy-next-card:hover,
.page-privacy .privacy-next-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.5);
  color: var(--white);
}

.page-privacy .privacy-next-card:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-privacy .privacy-glance {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .privacy-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(190px, 244px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 84px);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 480px) {
  .page-privacy .privacy-index {
    padding: 14px 12px 16px;
  }

  .page-privacy .privacy-section-head {
    gap: 10px;
  }

  .page-privacy .privacy-versions {
    padding-left: 18px;
  }

  .page-privacy .privacy-versions > li::before {
    left: -22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-next-card,
  .page-privacy .privacy-index-list a,
  .page-privacy .privacy-versions details {
    transition: none;
  }

  .page-privacy .privacy-next-card:hover,
  .page-privacy .privacy-next-card:focus-visible {
    transform: none;
  }
}