.page-privacy {
  --pp-measure: 68ch;
  --pp-side: 196px;
  position: relative;
  color: var(--c-white);
  background:
    radial-gradient(110% 52% at 86% 0%, rgba(14, 122, 115, 0.26), transparent 62%),
    var(--c-deep);
  padding-bottom: clamp(56px, 8vw, 108px);
}

.page-privacy img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-privacy .pp-hero {
  padding-block: clamp(22px, 3vw, 36px) clamp(24px, 3.5vw, 44px);
  border-bottom: var(--line);
}

.page-privacy .pp-hero__inner {
  padding-block: clamp(12px, 2.4vw, 28px) clamp(22px, 3vw, 36px);
}

.page-privacy .pp-kicker {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-privacy .pp-hero__title {
  margin: 0 0 18px;
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(38px, 8vw, 68px);
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.page-privacy .pp-hero__lede {
  max-width: var(--pp-measure);
  margin: 0 0 22px;
  font-size: clamp(16px, 2.1vw, 18px);
  line-height: 1.78;
  color: var(--c-white);
}

.page-privacy .pp-hero__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  border-top: var(--line);
  padding-top: 14px;
}

.page-privacy .pp-hero__meta li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-privacy .pp-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 1px;
  background: var(--c-cyan);
}

.page-privacy .pp-figure {
  position: relative;
  margin: 0;
  border: var(--line);
  overflow: hidden;
  background: var(--c-panel);
}

.page-privacy .pp-figure__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  filter: saturate(0.86) brightness(0.94);
}

.page-privacy .pp-figure .media-frame__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(111, 242, 224, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(111, 242, 224, 0.09) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-privacy .pp-figure .media-frame__caption {
  position: relative;
  display: block;
  padding: 10px 14px;
  border-top: var(--line);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  background: var(--c-deep);
}

/* ---------- 布局骨架 ---------- */
.page-privacy .pp-layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "toc"
    "body";
  padding-top: clamp(24px, 3.5vw, 44px);
}

.page-privacy .pp-toc {
  grid-area: toc;
  border-bottom: var(--line);
  padding-bottom: 14px;
}

.page-privacy .pp-article {
  grid-area: body;
  min-width: 0;
}

.page-privacy .pp-toc__label {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-muted);
}

.page-privacy .pp-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .pp-toc__item {
  flex: 0 0 auto;
}

.page-privacy .pp-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: var(--line);
  color: var(--c-muted);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .pp-toc__link:hover {
  border-color: var(--c-cyan);
  color: var(--c-white);
}

.page-privacy .pp-toc__link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-privacy .pp-toc__num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-cyan);
}

/* ---------- 条款小节 ---------- */
.page-privacy .pp-clause {
  border-top: var(--line);
}

.page-privacy .pp-clause:first-of-type {
  border-top: var(--line);
}

.page-privacy .pp-clause__box {
  padding-block: clamp(16px, 2.6vw, 26px);
}

.page-privacy .pp-clause__summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  cursor: pointer;
  list-style: none;
  padding: 4px 0;
}

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

.page-privacy .pp-clause__summary::after {
  content: "收起";
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-privacy .pp-clause__box:not([open]) .pp-clause__summary::after {
  content: "展开";
}

.page-privacy .pp-clause__summary:hover::after {
  color: var(--c-cyan);
}

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

.page-privacy .pp-clause__num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
  padding-top: 6px;
}

.page-privacy .pp-clause__title {
  margin: 0;
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--c-white);
}

.page-privacy .pp-clause__body {
  padding-top: 14px;
}

.page-privacy .pp-clause__body p {
  max-width: var(--pp-measure);
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--c-white);
}

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

.page-privacy .pp-clause__body strong {
  font-weight: 500;
  color: var(--c-white);
}

.page-privacy .pp-link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 242, 224, 0.4);
  transition: border-color var(--dur) var(--ease);
}

.page-privacy .pp-link:hover {
  border-bottom-color: var(--c-cyan);
}

.page-privacy .pp-link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-privacy .pp-term {
  display: inline-block;
  padding: 0 8px;
  border: var(--line);
  background: rgba(111, 242, 224, 0.06);
  color: var(--c-cyan);
  font-size: 0.94em;
  letter-spacing: 0.03em;
}

.page-privacy .mono {
  font-family: var(--f-mono);
  font-size: 0.94em;
  letter-spacing: 0.02em;
  color: var(--c-white);
  word-break: break-all;
}

/* ---------- 信息条目 ---------- */
.page-privacy .pp-fields {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: var(--line);
  max-width: calc(var(--pp-measure) + 200px);
}

.page-privacy .pp-field {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: var(--line);
}

.page-privacy .pp-field__key {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-privacy .pp-field__val {
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 用途列表 ---------- */
.page-privacy .pp-uses {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: var(--pp-measure);
}

.page-privacy .pp-use {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  border: var(--line);
  background: var(--c-panel);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .pp-use:hover {
  border-color: var(--c-cyan);
  transform: translateY(-2px);
}

.page-privacy .pp-use__mark {
  margin-top: 8px;
  width: 14px;
  height: 2px;
  background: var(--c-coral);
}

.page-privacy .pp-use__text {
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 数据焦点 ---------- */
.page-privacy .pp-stats {
  margin: 22px 0;
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-privacy .pp-stats .stat__value {
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  color: var(--c-cyan);
}

/* ---------- 结尾引导 ---------- */
.page-privacy .pp-cta {
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(20px, 3vw, 32px);
  border: var(--line);
  background:
    linear-gradient(135deg, rgba(12, 32, 51, 0.9), rgba(6, 19, 31, 0.9)),
    var(--c-panel);
}

.page-privacy .pp-cta__lead {
  max-width: 52ch;
  margin: 0 0 18px;
  font-family: var(--f-serif);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.62;
  color: var(--c-white);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-privacy .pp-field {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 18px;
  }

  .page-privacy .pp-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-privacy .pp-layout {
    grid-template-columns: minmax(0, 1fr) var(--pp-side);
    grid-template-areas: "body toc";
    gap: clamp(36px, 5vw, 76px);
    align-items: start;
  }

  .page-privacy .pp-toc {
    position: sticky;
    top: 28px;
    border-bottom: 0;
    padding-bottom: 0;
  }

  .page-privacy .pp-toc__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: var(--line);
  }

  .page-privacy .pp-toc__item + .pp-toc__item {
    margin-top: 2px;
  }

  .page-privacy .pp-toc__link {
    display: flex;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    padding: 9px 0 9px 14px;
    white-space: normal;
    line-height: 1.4;
  }

  .page-privacy .pp-toc__link:hover {
    border-left-color: var(--c-cyan);
    background: rgba(111, 242, 224, 0.05);
  }

  .page-privacy .pp-figure__img {
    aspect-ratio: 24 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-use,
  .page-privacy .pp-toc__link,
  .page-privacy .pp-link {
    transition: none;
  }

  .page-privacy .pp-use:hover {
    transform: none;
  }
}