.page-privacy {
  --pv-rail-w: 13.5rem;
  --pv-gap: clamp(28px, 5vw, 72px);
  --pv-measure: 66ch;
  --pv-dim: rgba(243, 237, 226, 0.78);
  --pv-dim-2: rgba(243, 237, 226, 0.68);
}

/* ============ 首屏 ============ */
.page-privacy .pv-hero {
  position: relative;
  margin-top: var(--sp-3);
  background: var(--ink-deep);
  border: 1px solid var(--line);
  overflow: hidden;
  padding: clamp(32px, 6vw, 72px) 0 clamp(28px, 5vw, 60px);
}

.page-privacy .pv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(30, 50, 71, 0.8) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 50, 71, 0.8) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.6;
  pointer-events: none;
}

.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -140px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(53, 242, 214, 0.16), transparent 68%);
  pointer-events: none;
}

.page-privacy .pv-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  align-items: center;
}

.page-privacy .pv-hero__copy {
  min-width: 0;
}

.page-privacy .pv-hero__copy h1 {
  font-size: clamp(29px, 5.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 18ch;
}

.page-privacy .pv-hero__lede {
  max-width: 46ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--pv-dim);
}

.page-privacy .pv-hero__meta {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  max-width: 36rem;
}

.page-privacy .pv-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.6;
  color: var(--pv-dim-2);
}

.page-privacy .pv-hero__meta span {
  flex: none;
  min-width: 42px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-privacy .pv-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(10, 26, 42, 0.7);
}

.page-privacy .pv-hero__figure .figure__media {
  aspect-ratio: 2 / 1;
  overflow: hidden;
}

.page-privacy .pv-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============ 两栏骨架 ============ */
.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding: clamp(36px, 6vw, 76px) 0 clamp(48px, 8vw, 96px);
}

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

/* ============ 左侧章节刻度 ============ */
.page-privacy .pv-rail__head {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-privacy .pv-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-privacy .pv-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--stone);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.page-privacy .pv-rail__n {
  color: var(--clay);
  font-size: 11px;
}

.page-privacy .pv-rail__link:hover .pv-rail__n {
  color: var(--orange);
}

.page-privacy .pv-rail__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ============ 正文章节 ============ */
.page-privacy .pv-sec {
  padding: clamp(30px, 4vw, 46px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

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

.page-privacy .pv-sec__n {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-privacy .pv-sec h2 {
  margin: 0 0 10px;
  color: var(--paper);
  line-height: 1.18;
}

.page-privacy .pv-sec__meta {
  margin: 0 0 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--stone);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-body p {
  max-width: var(--pv-measure);
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--pv-dim);
}

.page-privacy .pv-body p:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-u {
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.page-privacy .pv-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.5);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-privacy .pv-link:hover,
.page-privacy .pv-link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ============ 信息条目 ============ */
.page-privacy .pv-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  max-width: var(--pv-measure);
}

.page-privacy .pv-list__item {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-list__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-list__term {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-privacy .pv-list__tag {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 3px 8px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
}

.page-privacy .pv-list__tag--opt {
  border-color: var(--amber);
  color: var(--amber);
}

.page-privacy .pv-list__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--pv-dim-2);
}

/* ============ 保留期限 ============ */
.page-privacy .pv-keep {
  list-style: none;
  margin: 6px 0 18px;
  padding: 0;
  max-width: var(--pv-measure);
  border-top: 1px solid var(--line);
}

.page-privacy .pv-keep__item {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-keep__t {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--stone);
}

.page-privacy .pv-keep__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-privacy .pv-keep__v > span {
  padding: 0 4px;
  font-weight: 400;
  color: var(--stone);
}

.page-privacy .pv-keep__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--pv-dim-2);
}

/* ============ 折叠说明 ============ */
.page-privacy .pv-fold {
  max-width: var(--pv-measure);
  margin-top: 24px;
  border: 1px solid var(--line);
  background: rgba(5, 13, 23, 0.6);
}

.page-privacy .pv-fold__summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

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

.page-privacy .pv-fold__summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 17px;
  line-height: 1;
  color: var(--orange);
}

.page-privacy .pv-fold[open] .pv-fold__summary::after {
  content: "–";
}

.page-privacy .pv-fold__body {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-fold__body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--pv-dim-2);
  margin-bottom: 12px;
}

.page-privacy .pv-fold__body p:last-child {
  margin-bottom: 0;
}

/* ============ 页尾动作 ============ */
.page-privacy .pv-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  margin-top: clamp(34px, 5vw, 52px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
  max-width: var(--pv-measure);
}

.page-privacy .pv-foot__text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--stone);
}

.page-privacy .pv-foot .btn {
  flex: none;
}

/* ============ 首屏入场（纯 CSS，禁用动效时自然可见） ============ */
@keyframes pv-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-privacy .pv-hero__copy > * {
    animation: pv-rise 0.6s cubic-bezier(0.22, 0.61, 0.36, 1) both;
  }
  .page-privacy .pv-hero__copy > *:nth-child(1) { animation-delay: 0.04s; }
  .page-privacy .pv-hero__copy > *:nth-child(2) { animation-delay: 0.11s; }
  .page-privacy .pv-hero__copy > *:nth-child(3) { animation-delay: 0.18s; }
  .page-privacy .pv-hero__copy > *:nth-child(4) { animation-delay: 0.25s; }
  .page-privacy .pv-hero__figure {
    animation: pv-rise 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) 0.16s both;
  }
}

/* ============ 窄屏修正 ============ */
@media (max-width: 639px) {
  .page-privacy .pv-hero__copy h1 {
    max-width: none;
  }

  .page-privacy .pv-hero__meta li {
    gap: 10px;
    font-size: 13.5px;
  }

  .page-privacy .pv-body p {
    font-size: 16px;
  }

  .page-privacy .pv-keep__v {
    font-size: 19px;
  }

  .page-privacy .pv-foot {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ============ 中屏：保留期限横排 ============ */
@media (min-width: 720px) {
  .page-privacy .pv-keep__item {
    grid-template-columns: minmax(0, 190px) minmax(0, 1fr);
    grid-template-areas:
      "t v"
      "t n";
    column-gap: 30px;
    row-gap: 8px;
    align-items: start;
  }

  .page-privacy .pv-keep__t { grid-area: t; }
  .page-privacy .pv-keep__v { grid-area: v; }
  .page-privacy .pv-keep__note { grid-area: n; }
}

/* ============ 首屏双栏 ============ */
@media (min-width: 900px) {
  .page-privacy .pv-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: clamp(34px, 4.5vw, 64px);
  }
}

/* ============ 桌面：左栏竖向刻度 ============ */
@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-rail-w) minmax(0, 1fr);
    gap: var(--pv-gap);
    align-items: start;
  }

  .page-privacy .pv-rail {
    position: sticky;
    top: 104px;
  }

  .page-privacy .pv-rail__list {
    display: block;
    padding-left: 21px;
    border-left: 1px solid var(--line);
  }

  .page-privacy .pv-rail__link {
    display: flex;
    width: 100%;
    padding: 9px 0;
    border: 0;
    position: relative;
    gap: 10px;
  }

  .page-privacy .pv-rail__link::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 50%;
    width: 12px;
    height: 1px;
    background: var(--line);
    transform: translateY(-50%);
    transition: width 0.18s ease, background 0.18s ease;
  }

  .page-privacy .pv-rail__link:hover::before,
  .page-privacy .pv-rail__link:focus-visible::before {
    width: 17px;
    background: var(--cyan);
  }

  .page-privacy .pv-rail__note {
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 12px;
  }
}
<<<END>>>