/* ===== 隐私政策页 · 安静窄栏长文 ===== */
.page-privacy {
  --pp-measure: 720px;
  --pp-index-w: 224px;
  display: block;
  background-color: var(--abyss-900);
  color: var(--fog-200);
}

/* ---------- 页首横幅 ---------- */
.page-privacy__banner {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background-color: var(--abyss-800);
  background-image:
    radial-gradient(circle at 80% 16%, rgba(69, 214, 176, 0.18), transparent 46%),
    radial-gradient(circle at 10% 88%, rgba(255, 107, 74, 0.14), transparent 52%);
}

.page-privacy__banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.36;
}

.page-privacy__banner-copy {
  position: relative;
  z-index: 1;
  padding: clamp(58px, 11vw, 132px) 0 clamp(34px, 6vw, 58px);
  max-width: 780px;
}

.page-privacy .eyebrow {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fog-400);
}

.page-privacy__banner h1 {
  margin: 16px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.2vw, 48px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--fog-050);
}

.page-privacy__banner .lede {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-400);
  line-height: 1.8;
  color: var(--fog-200);
}

/* ---------- 主体舞台 ---------- */
.page-privacy__stage {
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-privacy__stage .breadcrumb {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-privacy__layout {
  display: block;
  padding-top: clamp(28px, 5vw, 52px);
}

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

.page-privacy__doc p {
  max-width: 68ch;
  margin: 0 0 1.15em;
  font-size: var(--fs-400);
  line-height: 1.85;
  color: var(--fog-200);
}

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

.page-privacy__doc strong {
  color: var(--fog-050);
  font-weight: 600;
}

.page-privacy__doc h2 {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, var(--fs-600));
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--fog-050);
}

.page-privacy__section {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-privacy__section + .page-privacy__section {
  margin-top: clamp(52px, 7vw, 92px);
}

.page-privacy__section + .page-privacy__section::before {
  content: "";
  display: block;
  height: 9px;
  margin-bottom: clamp(28px, 4vw, 46px);
  background-image: repeating-linear-gradient(
    112deg,
    var(--line-mid) 0,
    var(--line-mid) 1px,
    transparent 1px,
    transparent 9px
  );
  opacity: 0.72;
}

.page-privacy__num {
  margin-right: 8px;
  color: var(--coral-300);
}

/* ---------- 列表 ---------- */
.page-privacy__list {
  margin: 0 0 1.4em;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-privacy__list li {
  position: relative;
  max-width: 68ch;
  padding-left: 24px;
  font-size: var(--fs-400);
  line-height: 1.8;
  color: var(--fog-200);
}

.page-privacy__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 12px;
  height: 1px;
  background: var(--mint-400);
}

/* ---------- 关键句 ---------- */
.page-privacy__hl {
  color: var(--fog-050);
  font-weight: 600;
  box-shadow: inset 0 -0.34em 0 rgba(255, 107, 74, 0.3);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ---------- 反白阅读区 ---------- */
.page-privacy__section--light {
  padding: clamp(26px, 4.4vw, 48px) clamp(20px, 4vw, 44px);
  background: var(--fog-050);
  color: var(--ink-900);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-privacy__section--light::before {
  display: none;
}

.page-privacy__section--light h2 {
  color: var(--ink-900);
}

.page-privacy__section--light p,
.page-privacy__section--light li,
.page-privacy__section--light strong {
  color: rgba(10, 21, 32, 0.84);
}

.page-privacy__section--light strong {
  color: var(--ink-900);
}

.page-privacy__section--light .eyebrow {
  color: var(--mint-700);
}

.page-privacy__section--light .page-privacy__num {
  color: var(--mint-700);
}

.page-privacy__section--light .page-privacy__list li::before {
  background: var(--mint-700);
}

.page-privacy__section--light .page-privacy__hl {
  color: var(--ink-900);
  box-shadow: inset 0 -0.34em 0 rgba(255, 158, 128, 0.6);
}

/* ---------- 相关阅读 ---------- */
.page-privacy__section--related {
  padding-bottom: clamp(8px, 2vw, 20px);
}

.page-privacy__related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-privacy__related-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: var(--fs-200);
  line-height: 1.4;
  color: var(--fog-200);
  text-decoration: none;
  border: 1px solid var(--line-mid);
  background: rgba(18, 58, 87, 0.45);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-privacy__related-link::after {
  content: "→";
  color: var(--coral-300);
}

.page-privacy__related-link:hover,
.page-privacy__related-link:focus-visible {
  color: var(--fog-050);
  border-color: var(--coral-500);
  background: rgba(27, 78, 115, 0.72);
}

.page-privacy__related-link:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--coral-500);
}

/* ---------- 侧栏索引 ---------- */
.page-privacy__index {
  margin-top: clamp(40px, 7vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
}

.page-privacy__index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fog-400);
}

.page-privacy__index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 2px;
}

.page-privacy__index-list li {
  min-width: 0;
}

.page-privacy__index-list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  font-size: var(--fs-200);
  line-height: 1.5;
  color: var(--fog-200);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy__index-list a:hover,
.page-privacy__index-list a:focus-visible {
  color: var(--fog-050);
  background: rgba(27, 78, 115, 0.4);
  border-left-color: var(--coral-500);
}

.page-privacy__index-list a:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: 2px;
}

.page-privacy__index-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.08em;
  color: var(--fog-400);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 1024px) {
  .page-privacy__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--pp-index-w);
    gap: clamp(44px, 5.5vw, 80px);
    align-items: start;
  }

  .page-privacy__doc {
    max-width: var(--pp-measure);
  }

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

  .page-privacy__index-list {
    grid-template-columns: 1fr;
  }

  .page-privacy__index::before {
    content: "";
    display: block;
    height: 7px;
    margin-bottom: 18px;
    background-image: repeating-linear-gradient(
      112deg,
      var(--line-mid) 0,
      var(--line-mid) 1px,
      transparent 1px,
      transparent 8px
    );
    opacity: 0.7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy * {
    transition-duration: 0.01ms !important;
  }
}