.page-privacy {
  --pv-rail: 216px;
  display: block;
  color: var(--c-ivory);
}

/* ---------- 页头 ---------- */
.page-privacy .pv-head {
  position: relative;
  padding-block: clamp(26px, 4.5vw, 52px) 0;
  border-bottom: 1px solid var(--c-line-soft);
}
.page-privacy .pv-head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(168, 85, 247, .45) 38%, transparent 72%);
  opacity: .5;
  pointer-events: none;
}

.page-privacy .pv-kicker {
  margin: 20px 0 10px;
  font-family: var(--f-index);
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-privacy .pv-title {
  margin: 0 0 18px;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(38px, 8vw, 78px);
  line-height: 1.04;
  letter-spacing: .02em;
  color: var(--c-ivory);
  text-shadow: 0 0 30px rgba(34, 211, 238, .2);
}

.page-privacy .pv-lead {
  max-width: 66ch;
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-privacy .pv-meta {
  display: inline-block;
  max-width: 66ch;
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--c-violet);
  font-family: var(--f-index);
  font-size: 12.5px;
  letter-spacing: .08em;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-privacy .pv-banner {
  margin: clamp(26px, 4.5vw, 46px) 0 0;
  border: 2px solid var(--c-line);
  box-shadow: var(--hard-cyan);
  background: var(--c-deep);
}
.page-privacy .pv-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.86) brightness(.92);
}
@media (min-width: 760px) {
  .page-privacy .pv-banner img { aspect-ratio: 8 / 3; }
}

/* ---------- 主布局 ---------- */
.page-privacy .pv-layout {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  padding-block: clamp(34px, 6vw, 72px) clamp(46px, 8vw, 92px);
}

@media (min-width: 1000px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-rail) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 72px);
    align-items: start;
  }
}

/* ---------- 左侧章节索引 ---------- */
.page-privacy .pv-rail__label {
  margin: 0 0 12px;
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-mist);
  text-transform: uppercase;
}

.page-privacy .pv-rail ol {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-privacy .pv-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--c-line-soft);
  background: var(--c-deep);
  color: var(--c-mist);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.page-privacy .pv-rail__link:hover,
.page-privacy .pv-rail__link:focus-visible {
  color: var(--c-ivory);
  border-color: var(--c-cyan);
  background: rgba(34, 211, 238, .09);
}

.page-privacy .pv-rail__num {
  font-family: var(--f-index);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}

@media (min-width: 1000px) {
  .page-privacy .pv-rail {
    position: sticky;
    top: 112px;
  }
  .page-privacy .pv-rail ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--c-line-soft);
  }
  .page-privacy .pv-rail__link {
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    background: transparent;
    padding: 10px 6px 10px 14px;
    white-space: normal;
    line-height: 1.55;
    font-size: 14.5px;
  }
  .page-privacy .pv-rail__link:hover,
  .page-privacy .pv-rail__link:focus-visible {
    border-left-color: var(--c-cyan);
    background: rgba(34, 211, 238, .07);
  }
}

/* ---------- 正文 ---------- */
.page-privacy .pv-doc {
  max-width: 76ch;
}

.page-privacy .pv-sec {
  padding-block: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--c-line-soft);
  scroll-margin-top: 104px;
}
.page-privacy .pv-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-privacy .pv-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 18px;
}
.page-privacy .pv-sec__num {
  flex: none;
  font-family: var(--f-index);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--c-cyan);
}
.page-privacy .pv-sec__title {
  margin: 0;
  font-family: var(--f-body);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.38;
  letter-spacing: .01em;
  color: var(--c-ivory);
}

.page-privacy .pv-text {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--c-mist);
}
.page-privacy .pv-text:last-child { margin-bottom: 0; }
.page-privacy .pv-text--note {
  margin-top: 16px;
  padding-left: 14px;
  border-left: 2px solid var(--c-violet);
  font-size: 15.5px;
}
.page-privacy .pv-text a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .45);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.page-privacy .pv-text a:hover,
.page-privacy .pv-text a:focus-visible {
  color: var(--c-ivory);
  border-bottom-color: var(--c-ivory);
}

/* ---------- 场景分块 ---------- */
.page-privacy .pv-scenes {
  display: grid;
  gap: 14px;
  max-width: 74ch;
  margin-top: 20px;
}
.page-privacy .pv-scene {
  padding: clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--c-line-soft);
  border-left: 3px solid var(--c-violet);
  background: var(--c-deep);
  transition: border-color var(--t-mid), transform var(--t-mid);
}
.page-privacy .pv-scene:hover {
  border-left-color: var(--c-cyan);
  transform: translateY(-2px);
}
.page-privacy .pv-scene__code {
  display: inline-block;
  margin-bottom: 9px;
  font-family: var(--f-index);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--c-cyan);
}
.page-privacy .pv-scene__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-ivory);
}
.page-privacy .pv-scene p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--c-mist);
}
.page-privacy .pv-scene p + p { margin-top: 10px; }

/* ---------- 用途与留存表 ---------- */
.page-privacy .pv-rows {
  max-width: 78ch;
  margin-top: 18px;
  border: 1px solid var(--c-line);
  background: var(--c-deep);
}
.page-privacy .pv-row {
  display: grid;
  gap: 6px 22px;
  padding: 15px clamp(14px, 2.4vw, 20px);
  border-bottom: 1px solid var(--c-line-soft);
}
.page-privacy .pv-row:last-child { border-bottom: 0; }

@media (min-width: 720px) {
  .page-privacy .pv-row {
    grid-template-columns: minmax(120px, .95fr) minmax(0, 2.1fr) auto;
    align-items: center;
  }
}

.page-privacy .pv-row__k {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-ivory);
}
.page-privacy .pv-row__v {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-mist);
}
.page-privacy .pv-row__t {
  justify-self: start;
  padding: 3px 9px;
  border: 1px solid rgba(245, 185, 66, .42);
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-gold);
  white-space: nowrap;
}

/* ---------- 折叠 ---------- */
.page-privacy .pv-fold {
  max-width: 72ch;
  margin-top: 20px;
  border: 1px solid var(--c-line-soft);
  background: rgba(11, 26, 34, .72);
}
.page-privacy .pv-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--c-ivory);
  transition: background-color var(--t-fast), color var(--t-fast);
}
.page-privacy .pv-fold summary::-webkit-details-marker { display: none; }
.page-privacy .pv-fold summary:hover { background: rgba(34, 211, 238, .07); }
.page-privacy .pv-fold summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}
.page-privacy .pv-fold summary::after {
  content: "+";
  flex: none;
  font-family: var(--f-index);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
}
.page-privacy .pv-fold[open] summary::after { content: "–"; }
.page-privacy .pv-fold__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--c-line-soft);
}
.page-privacy .pv-fold__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}
.page-privacy .pv-fold__body p + p { margin-top: 10px; }

/* ---------- 权利清单 ---------- */
.page-privacy .pv-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  max-width: 72ch;
  display: grid;
  gap: 14px;
}
.page-privacy .pv-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-mist);
}
.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 3px;
  background: var(--c-cyan);
}
.page-privacy .pv-list strong {
  color: var(--c-ivory);
  font-weight: 700;
}

/* ---------- 强调块 ---------- */
.page-privacy .pv-callout {
  max-width: 72ch;
  margin-top: 22px;
  padding: clamp(16px, 2.6vw, 24px);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-cyan);
  background: linear-gradient(135deg, rgba(34, 211, 238, .1), rgba(168, 85, 247, .07) 70%, transparent);
}
.page-privacy .pv-callout p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--c-mist);
}
.page-privacy .pv-callout p + p { margin-top: 8px; }
.page-privacy .pv-callout--quiet {
  border-left-color: var(--c-violet);
  background: rgba(11, 26, 34, .8);
}

.page-privacy .pv-email {
  font-family: var(--f-index);
  font-size: 15px;
  letter-spacing: .03em;
  color: var(--c-cyan);
  word-break: break-all;
}

/* ---------- 下一站 ---------- */
.page-privacy .pv-next {
  margin-top: clamp(34px, 5vw, 58px);
}

/* ---------- 动效收敛 ---------- */
.page-privacy .pv-scene:hover { transition-duration: var(--t-mid); }

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-scene:hover { transform: none; }
  .page-privacy .pv-rail__link,
  .page-privacy .pv-text a,
  .page-privacy .pv-fold summary { transition: none; }
}
<<<END>>>