.page-privacy {
  --privacy-rail-w: 216px;
  --privacy-text: rgba(242, 246, 243, 0.82);
  --privacy-text-dim: rgba(242, 246, 243, 0.6);
  display: block;
  color: var(--chalk);
  background: var(--ink);
  overflow-x: clip;
}

/* ---------- 页头 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(34px, 6vw, 76px) 0 clamp(40px, 7vw, 88px);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

.page-privacy .privacy-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  pointer-events: none;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 13, 10, 0.5) 0%, rgba(5, 13, 10, 0.88) 66%, var(--ink) 100%),
    radial-gradient(92% 74% at 14% 8%, rgba(11, 46, 36, 0.72), transparent 72%);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.6;
  background-image:
    linear-gradient(90deg, rgba(30, 58, 49, 0.55) 1px, transparent 1px),
    linear-gradient(0deg, rgba(30, 58, 49, 0.45) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 76%);
}

.page-privacy .privacy-hero-inner {
  position: relative;
  z-index: 2;
}

.page-privacy .privacy-kicker {
  margin: 22px 0 14px;
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .privacy-title {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-privacy .privacy-lead {
  margin: 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--privacy-text);
}

.page-privacy .privacy-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 主体布局 ---------- */
.page-privacy .privacy-body {
  background:
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 42%, var(--ink) 100%);
}

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: start;
}

/* ---------- 章节轨道 ---------- */
.page-privacy .privacy-rail {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-privacy .privacy-rail-label {
  margin: 0 0 12px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-privacy .privacy-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-rail-list::-webkit-scrollbar {
  display: none;
}

.page-privacy .privacy-rail-list > li {
  flex: 0 0 auto;
}

.page-privacy .privacy-rail-link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.88rem;
  line-height: 1.3;
  white-space: nowrap;
  color: var(--steel);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-privacy .privacy-rail-link .mono {
  color: var(--amber);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
}

.page-privacy .privacy-rail-link:hover,
.page-privacy .privacy-rail-link:focus-visible {
  color: var(--chalk);
  border-color: var(--amber-dim);
  background: var(--glass);
}

/* ---------- 章节块 ---------- */
.page-privacy .privacy-flow {
  min-width: 0;
}

.page-privacy .privacy-block {
  padding: clamp(24px, 3.5vw, 38px) 0 clamp(24px, 3.5vw, 38px);
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-block:first-child {
  border-top-color: var(--amber-dim);
}

.page-privacy .privacy-num {
  margin: 0 0 12px;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-privacy .privacy-block h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.24rem, 2.6vw, 1.8rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-privacy .privacy-block > p {
  margin: 0 0 4px;
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--privacy-text);
}

.page-privacy .privacy-block h3 {
  margin: 0 0 12px;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--chalk);
}

/* ---------- 要点行 ---------- */
.page-privacy .privacy-rows {
  margin: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 14px 10px 14px 16px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 2px;
  height: 0;
  background: var(--cyan);
  transition: height 0.3s ease;
}

.page-privacy .privacy-row:hover::before,
.page-privacy .privacy-row:focus-within::before {
  height: calc(100% - 32px);
}

.page-privacy .privacy-row dt {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-privacy .privacy-row dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.76;
  color: var(--privacy-text);
}

/* ---------- 展开阅读 ---------- */
.page-privacy .privacy-more {
  margin-top: 22px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--glass);
}

.page-privacy .privacy-more summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}

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

.page-privacy .privacy-more summary::after {
  content: "+";
  font-size: 1.05rem;
  line-height: 1;
  color: var(--steel);
}

.page-privacy .privacy-more[open] summary::after {
  content: "\2013";
}

.page-privacy .privacy-more summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

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

.page-privacy .privacy-more-body p {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 0.96rem;
  line-height: 1.76;
  color: var(--privacy-text);
}

/* ---------- 联系实色层 ---------- */
.page-privacy .privacy-contact {
  margin-top: 26px;
  padding: clamp(20px, 3.6vw, 34px);
  border-top: 3px solid var(--amber);
  border-radius: var(--radius);
}

.page-privacy .privacy-contact-label {
  margin: 0 0 10px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-privacy .privacy-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.page-privacy .privacy-contact-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 12px;
  border-left: 1px solid var(--line-soft);
  min-width: 0;
}

.page-privacy .privacy-contact-item .footer-value {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--chalk);
  word-break: break-word;
}

.page-privacy .privacy-contact-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--privacy-text-dim);
}

/* ---------- 底部导航 ---------- */
.page-privacy .privacy-next {
  margin-top: clamp(30px, 4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-next-label {
  margin: 0 0 14px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-privacy .privacy-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-privacy .privacy-row {
    grid-template-columns: minmax(0, 178px) minmax(0, 1fr);
    gap: 20px;
    padding-left: 18px;
  }

  .page-privacy .privacy-lead {
    font-size: 1.06rem;
  }

  .page-privacy .privacy-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-rail-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    border-top: 0;
    padding-top: 6px;
  }

  .page-privacy .privacy-rail-list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-privacy .privacy-rail-list > li + li {
    margin-top: 2px;
  }

  .page-privacy .privacy-rail-link {
    display: flex;
    width: 100%;
    margin-left: -1px;
    padding: 10px 12px;
    border: 1px solid transparent;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    white-space: normal;
    line-height: 1.45;
  }

  .page-privacy .privacy-rail-link:hover,
  .page-privacy .privacy-rail-link:focus-visible {
    border-color: transparent;
    border-left-color: var(--amber);
    background: var(--glass);
  }

  .page-privacy .privacy-block {
    padding: clamp(28px, 3vw, 44px) 0;
  }

  .page-privacy .privacy-block:first-child {
    padding-top: 6px;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-title {
    max-width: 22ch;
  }

  .page-privacy .privacy-row {
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail-link,
  .page-privacy .privacy-row::before {
    transition: none;
  }
}