.page-privacy {
  --pv-rail-w: 248px;
  display: block;
  background: var(--void);
  color: var(--ice);
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 4vw, 46px) 0 clamp(34px, 5vw, 64px);
}

.page-privacy .pv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, var(--grid) 1px, transparent 1.1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(125% 95% at 18% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(125% 95% at 18% 0%, #000 0%, transparent 72%);
  opacity: .85;
  pointer-events: none;
}

.page-privacy .crumb {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.page-privacy .crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-privacy .crumb__list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-privacy .crumb__list li + li::before {
  content: "／";
  color: var(--grid);
}

.page-privacy .crumb__list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .crumb__list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-privacy .pv-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

@media (min-width: 900px) {
  .page-privacy .pv-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: end;
    gap: clamp(30px, 4vw, 58px);
  }
}

.page-privacy .pv-eyebrow {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .pv-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(31px, 5.4vw, 64px);
  line-height: 1.07;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-privacy .pv-lead {
  margin: 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ice);
}

.page-privacy .pv-facts {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-privacy .pv-facts li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-privacy .pv-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(39, 224, 208, .13);
}

.page-privacy .pv-banner {
  position: relative;
  margin: clamp(26px, 4vw, 48px) 0 0;
  padding: 0;
  border: 1px solid var(--grid);
  background: var(--ink);
  overflow: hidden;
}

.page-privacy .pv-banner img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(.88) contrast(1.06);
}

.page-privacy .pv-banner::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan));
  animation: pv-scan 5.6s var(--ease) infinite;
}

@keyframes pv-scan {
  0% { transform: translateX(-105%); opacity: 0; }
  14% { opacity: 1; }
  100% { transform: translateX(520%); opacity: 0; }
}

/* ---------- 正文区 ---------- */
.page-privacy .pv-body {
  padding: clamp(36px, 5vw, 76px) 0 clamp(52px, 7vw, 100px);
  border-top: 1px solid var(--grid);
}

.page-privacy .pv-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
}

@media (min-width: 980px) {
  .page-privacy .pv-body__grid {
    grid-template-columns: minmax(210px, var(--pv-rail-w)) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 84px);
    align-items: start;
  }
}

/* 章节索引 */
.page-privacy .pv-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-privacy .pv-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .pv-rail__list li {
  flex: 0 0 auto;
}

.page-privacy .pv-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--grid);
  background: var(--ink);
  color: var(--ice);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease);
}

.page-privacy .pv-rail__link .mono {
  font-size: 11px;
  color: var(--cyan);
}

.page-privacy .pv-rail__link:hover,
.page-privacy .pv-rail__link:focus-visible {
  border-color: var(--cyan);
  color: var(--paper);
}

@media (min-width: 980px) {
  .page-privacy .pv-rail {
    position: sticky;
    top: calc(var(--bar-h) + 22px);
  }

  .page-privacy .pv-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--grid);
  }

  .page-privacy .pv-rail__link {
    margin-left: -1px;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    white-space: normal;
    color: var(--mist);
  }

  .page-privacy .pv-rail__link:hover,
  .page-privacy .pv-rail__link:focus-visible {
    color: var(--ice);
    border-left-color: var(--cyan);
    background: rgba(39, 224, 208, .05);
  }
}

.page-privacy .pv-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 3px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .pv-top:hover,
.page-privacy .pv-top:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 章节结构 */
.page-privacy .pv-article {
  display: grid;
  gap: clamp(30px, 4vw, 48px);
}

.page-privacy .pv-sec {
  padding-top: clamp(24px, 3.4vw, 38px);
  border-top: 1px solid var(--grid);
  scroll-margin-top: calc(var(--bar-h) + 26px);
}

.page-privacy .pv-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .pv-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: baseline;
  margin-bottom: 16px;
}

.page-privacy .pv-sec__num {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-privacy .pv-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.26;
  letter-spacing: .045em;
  color: var(--paper);
}

.page-privacy .pv-article p {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.86;
  color: var(--ice);
}

.page-privacy .pv-article a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .pv-article a:hover {
  color: var(--paper);
}

/* 三张场景卡 */
.page-privacy .pv-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 22px;
}

@media (min-width: 720px) {
  .page-privacy .pv-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-privacy .pv-card {
  padding: 20px 18px 18px;
  background: var(--ink);
  border: 1px solid var(--grid);
  border-top: 2px solid var(--cyan);
}

.page-privacy .pv-card:nth-child(2) {
  border-top-color: var(--orange);
}

.page-privacy .pv-card:nth-child(3) {
  border-top-color: var(--magenta);
}

.page-privacy .pv-card__num {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-privacy .pv-card h3 {
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-privacy .pv-card p {
  margin: 0;
  max-width: none;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 条目列表 */
.page-privacy .pv-list {
  margin: 20px 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-privacy .pv-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--grid);
}

.page-privacy .pv-list__k {
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-privacy .pv-list p {
  margin: 0;
  max-width: none;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ice);
}

/* 纸面结论块 */
.page-privacy .pv-key {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--paper);
  border-left: 4px solid var(--orange);
}

.page-privacy .pv-key--cyan {
  border-left-color: var(--cyan-deep);
}

.page-privacy .pv-key__tag {
  margin: 0;
  max-width: none;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

.page-privacy .pv-key--cyan .pv-key__tag {
  color: var(--cyan-deep);
}

.page-privacy .pv-key__text {
  margin: 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-text);
}

.page-privacy .pv-key .copy-btn {
  justify-self: start;
  padding: 7px 14px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-privacy .pv-key .copy-btn:hover,
.page-privacy .pv-key .copy-btn:focus-visible {
  color: var(--orange-deep);
  border-color: var(--orange-deep);
}

.page-privacy .pv-key .copy-btn[data-copied] {
  color: var(--cyan-deep);
  border-color: var(--cyan-deep);
}

.page-privacy .pv-key .copy-btn:focus-visible {
  outline: 2px solid var(--cyan-deep);
  outline-offset: 2px;
}

/* ---------- 无障碍与窄屏收尾 ---------- */
@media (max-width: 520px) {
  .page-privacy .pv-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-privacy .pv-list__k {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-banner::after {
    animation: none;
    opacity: 0;
  }

  .page-privacy .pv-rail__link,
  .page-privacy .pv-card,
  .page-privacy .pv-key .copy-btn {
    transition: none;
  }
}
</PAGE_CSS>>>

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