.page-privacy {
  --prv-body-ink: #D2DEEC;
  --prv-paper-rule: #C9D8E8;
  --prv-paper-accent: #B8431C;
}

.page-privacy .prv-top {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 顶部横幅 ---------- */
.page-privacy .prv-hero {
  position: relative;
  overflow: clip;
  padding-block: clamp(22px, 4vw, 44px) clamp(24px, 4vw, 48px);
  border-bottom: 1px solid var(--line-600);
}

.page-privacy .prv-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -8%;
  width: 64%;
  height: 78%;
  background: linear-gradient(158deg, rgba(0, 229, 255, 0.16), rgba(11, 26, 47, 0) 64%);
  transform: skewY(-6deg);
  pointer-events: none;
  z-index: 0;
}

.page-privacy .prv-hero > .container {
  position: relative;
  z-index: 1;
}

.page-privacy .prv-hero__kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  border: 1px solid var(--line-600);
  background: rgba(0, 229, 255, 0.06);
}

.page-privacy .prv-hero__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-size: clamp(28px, 5.6vw, 50px);
  line-height: 1.2;
  letter-spacing: 0.005em;
  color: var(--fog);
}

.page-privacy .prv-hero__lede {
  margin: 0;
  max-width: 46em;
  color: var(--prv-body-ink);
}

.page-privacy .prv-hero__fig {
  margin: clamp(24px, 4vw, 42px) 0 0;
}

.page-privacy .prv-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 阅读布局 ---------- */
.page-privacy .prv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  padding-block: clamp(30px, 5vw, 60px);
}

.page-privacy .prv-body {
  min-width: 0;
}

/* ---------- 章节索引 ---------- */
.page-privacy .prv-toc {
  border: 1px solid var(--line-600);
  background: var(--ink-800);
  padding: 16px 14px 14px;
  align-self: start;
}

.page-privacy .prv-toc__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

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

.page-privacy .prv-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  padding: 10px 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy .prv-toc__link:hover,
.page-privacy .prv-toc__link:focus-visible {
  color: var(--fog);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
}

.page-privacy .prv-toc__num {
  flex: none;
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-privacy .prv-sec {
  margin: 0 0 clamp(18px, 3vw, 26px);
  padding: clamp(20px, 3.4vw, 36px);
  background: var(--ink-800);
  border: 1px solid var(--line-600);
  border-left: 3px solid var(--cyan);
  scroll-margin-top: 112px;
}

.page-privacy .prv-sec--paper {
  background: var(--paper);
  color: var(--paper-ink);
  border-color: var(--prv-paper-rule);
  border-left-color: var(--prv-paper-accent);
}

.page-privacy .prv-sec__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 18px;
  font-size: clamp(19px, 2.5vw, 25px);
  line-height: 1.35;
  color: var(--fog);
}

.page-privacy .prv-sec--paper .prv-sec__title {
  color: var(--paper-ink);
}

.page-privacy .prv-sec__num {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .prv-sec--paper .prv-sec__num {
  color: var(--prv-paper-accent);
}

.page-privacy .prv-sec__anchor {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-privacy .prv-sec__anchor:hover,
.page-privacy .prv-sec__anchor:focus-visible {
  border-bottom-color: currentColor;
}

.page-privacy .prv-sec:target {
  border-left-color: var(--coral);
}

/* ---------- 正文 ---------- */
.page-privacy .prv-prose p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: inherit;
}

.page-privacy .prv-sec .prv-prose p {
  color: var(--prv-body-ink);
}

.page-privacy .prv-sec--paper .prv-prose p {
  color: var(--paper-ink);
}

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

.page-privacy .prv-list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-privacy .prv-list > li {
  position: relative;
  padding-left: 22px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--prv-body-ink);
}

.page-privacy .prv-sec--paper .prv-list > li {
  color: var(--paper-ink);
}

.page-privacy .prv-list > li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 0.76em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-privacy .prv-sec--paper .prv-list > li::before {
  border-color: var(--prv-paper-accent);
}

.page-privacy .prv-list strong {
  color: var(--fog);
  font-weight: 600;
}

.page-privacy .prv-sec--paper .prv-list strong {
  color: var(--paper-ink);
}

/* ---------- 必需 / 可选 对照 ---------- */
.page-privacy .prv-need {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 18px 0;
  background: var(--line-600);
  border: 1px solid var(--line-600);
}

.page-privacy .prv-need__item {
  background: var(--ink-700);
  padding: 16px 18px;
}

.page-privacy .prv-need__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-privacy .prv-need__item:last-child .prv-need__k {
  color: var(--coral-soft);
}

.page-privacy .prv-need__v {
  margin: 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--prv-body-ink);
}

/* ---------- 信息流向示意 ---------- */
.page-privacy .prv-flow {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 16px 14px 12px;
  background: rgba(11, 26, 47, 0.55);
  border: 1px solid var(--line-600);
  border-top: 2px solid var(--cyan);
}

.page-privacy .prv-flow__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-privacy .prv-flow__boxes rect {
  fill: rgba(18, 38, 63, 0.9);
  stroke: var(--line-600);
  stroke-width: 1;
}

.page-privacy .prv-flow__lines line {
  stroke: var(--cyan);
  stroke-width: 1.4;
  marker-end: url(#prv-flow-arrow);
}

.page-privacy .prv-flow__labels text {
  fill: var(--fog);
  font-family: var(--sans);
  font-size: 14px;
  text-anchor: middle;
}

.page-privacy .prv-flow__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 后续入口 ---------- */
.page-privacy .prv-next {
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line-600);
}

.page-privacy .prv-next__title {
  margin: 0 0 18px;
  font-size: clamp(18px, 2.3vw, 22px);
  color: var(--fog);
}

.page-privacy .prv-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-privacy .prv-next__link {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  min-height: 44px;
  background: var(--ink-800);
  border: 1px solid var(--line-600);
  border-bottom: 2px solid transparent;
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy .prv-next__link:hover,
.page-privacy .prv-next__link:focus-visible {
  transform: translateY(-2px);
  background: var(--ink-700);
  border-bottom-color: var(--coral);
}

.page-privacy .prv-next__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-privacy .prv-next__t {
  font-size: 16px;
  line-height: 1.5;
  color: var(--fog);
}

.page-privacy .prv-next__d {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-privacy .prv-need {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1000px) {
  .page-privacy .prv-layout {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
  }

  .page-privacy .prv-body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-privacy .prv-toc {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 116px;
    padding-block: 20px 18px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-privacy .prv-toc__link,
  .page-privacy .prv-next__link,
  .page-privacy .prv-sec__anchor {
    transition: none;
  }

  .page-privacy .prv-next__link:hover,
  .page-privacy .prv-next__link:focus-visible {
    transform: none;
  }
}