.page-privacy {
  --prv-measure: 36em;
  --prv-side: 200px;
}

/* ---------- 页头 ---------- */
.page-privacy .prv-masthead {
  display: grid;
  gap: 24px;
  margin: 24px 0 44px;
  padding: clamp(20px, 3vw, 34px);
  border: 2px solid var(--ink-500);
  background: linear-gradient(155deg, var(--ink-850) 0%, var(--ink-950) 72%);
  box-shadow: var(--shadow-hard);
}

.page-privacy .prv-masthead__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-privacy .prv-masthead__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--warm-50);
}

.page-privacy .prv-masthead__lead {
  margin: 18px 0 0;
  max-width: var(--prv-measure);
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-400);
}

.page-privacy .prv-masthead__figure {
  margin: 0;
  border: 2px solid var(--ink-500);
  background: var(--ink-700);
  overflow: hidden;
}

.page-privacy .prv-masthead__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-privacy .prv-masthead {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(26px, 4vw, 52px);
  }
}

/* ---------- 主体分栏 ---------- */
.page-privacy .prv-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

/* ---------- 章节索引 ---------- */
.page-privacy .prv-index {
  padding: 16px 16px 18px;
  border: 2px solid var(--ink-500);
  background: var(--ink-850);
}

.page-privacy .prv-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
}

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

.page-privacy .prv-index__item {
  margin: 0;
}

.page-privacy .prv-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  text-decoration: none;
  color: var(--warm-50);
  border-left: 3px solid transparent;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.page-privacy .prv-index__link:hover,
.page-privacy .prv-index__link:focus-visible {
  background: var(--ink-700);
  border-left-color: var(--cyan-400);
  color: var(--cyan-200);
}

.page-privacy .prv-index__num {
  flex: none;
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-privacy .prv-index__text {
  font-size: var(--fs-small);
  line-height: 1.5;
}

@media (min-width: 1024px) {
  .page-privacy .prv-body {
    grid-template-columns: var(--prv-side) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-privacy .prv-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
}

/* ---------- 章节 ---------- */
.page-privacy .prv-content {
  min-width: 0;
  display: grid;
  gap: 0;
}

.page-privacy .prv-sec {
  scroll-margin-top: calc(var(--bar-h) + 24px);
  padding: clamp(26px, 3.6vw, 42px) 0;
  border-top: 1px solid var(--ink-500);
}

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

.page-privacy .prv-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-privacy .prv-sec__num {
  flex: none;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
}

.page-privacy .prv-sec__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: 1.1;
  color: var(--warm-50);
}

.page-privacy .prv-claim {
  max-width: var(--prv-measure);
  margin: 0 0 18px;
  padding: 14px 18px;
  border-left: 3px solid var(--orange-500);
  background: linear-gradient(90deg, var(--ink-700) 0%, var(--ink-850) 100%);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--warm-50);
}

.page-privacy .prv-text {
  max-width: var(--prv-measure);
  margin: 0 0 16px;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--warm-50);
}

.page-privacy .prv-text--after {
  margin-top: 22px;
  color: var(--gray-400);
}

/* ---------- 分类条目 ---------- */
.page-privacy .prv-items {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  max-width: var(--prv-measure);
}

.page-privacy .prv-item {
  padding: 14px 16px 15px;
  border: 2px solid var(--ink-500);
  background: var(--ink-850);
  box-shadow: var(--shadow-hard-sm);
}

.page-privacy .prv-item__key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-head);
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: 1.2;
  color: var(--cyan-200);
}

.page-privacy .prv-item__desc {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--warm-50);
}

@media (min-width: 700px) {
  .page-privacy .prv-items--flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: none;
  }
}

/* ---------- 保留期限行 ---------- */
.page-privacy .prv-rows {
  max-width: var(--prv-measure);
  border-top: 1px solid var(--ink-500);
}

.page-privacy .prv-row {
  padding: 15px 0;
  border-bottom: 1px solid var(--ink-500);
}

.page-privacy .prv-row__key {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange-200);
}

.page-privacy .prv-row__val {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--warm-50);
}

@media (min-width: 760px) {
  .page-privacy .prv-row {
    display: grid;
    grid-template-columns: 11.5em minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-privacy .prv-row__key {
    margin-bottom: 0;
  }
}

/* ---------- 折叠面板 ---------- */
.page-privacy .prv-fold {
  max-width: var(--prv-measure);
  margin-bottom: 10px;
  border: 2px solid var(--ink-500);
  background: var(--ink-850);
}

.page-privacy .prv-fold[open] {
  border-color: var(--cyan-400);
  box-shadow: var(--shadow-hard-sm);
}

.page-privacy .prv-fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: 1.25;
  color: var(--warm-50);
}

.page-privacy .prv-fold__summary::-webkit-details-marker {
  display: none;
}

.page-privacy .prv-fold__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan-400);
}

.page-privacy .prv-fold[open] .prv-fold__summary::after {
  content: "\2013";
}

.page-privacy .prv-fold__summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-privacy .prv-fold__body {
  padding: 14px 16px 16px;
  border-top: 1px solid var(--ink-500);
}

.page-privacy .prv-fold__body p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--warm-50);
}

/* ---------- 联系方式 ---------- */
.page-privacy .prv-contact {
  max-width: var(--prv-measure);
  padding: 18px;
  border: 2px solid var(--ink-500);
  background: var(--ink-700);
  box-shadow: var(--shadow-hard-sm);
}

.page-privacy .prv-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--ink-500);
}

.page-privacy .prv-contact__key {
  flex: none;
  min-width: 5.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.page-privacy .prv-contact__value {
  font-size: var(--fs-small);
  color: var(--cyan-200);
  text-decoration: none;
  word-break: break-all;
}

.page-privacy .prv-contact__value:hover,
.page-privacy .prv-contact__value:focus-visible {
  color: var(--cyan-400);
  text-decoration: underline;
}

.page-privacy .prv-contact__note {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 相关入口 ---------- */
.page-privacy .prv-related {
  display: grid;
  gap: 10px;
  margin-top: clamp(28px, 3.4vw, 44px);
  padding-top: 24px;
  border-top: 1px solid var(--ink-500);
}

.page-privacy .prv-related__link {
  position: relative;
  display: block;
  max-width: var(--prv-measure);
  padding: 13px 16px 13px 40px;
  border: 2px solid var(--ink-500);
  background: var(--ink-850);
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--warm-50);
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.page-privacy .prv-related__link::before {
  content: "\2192";
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--cyan-400);
}

.page-privacy .prv-related__link:hover,
.page-privacy .prv-related__link:focus-visible {
  border-color: var(--cyan-400);
  background: var(--ink-700);
  color: var(--cyan-200);
}

@media (min-width: 860px) {
  .page-privacy .prv-related {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .prv-related__link {
    max-width: none;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .prv-index__link,
  .page-privacy .prv-related__link,
  .page-privacy .prv-contact__value {
    transition: none;
  }
}
<<<END>>>