.page-privacy {
  --pv-read: 720px;
  --pv-num-w: 76px;
  --pv-gap: 40px;
  position: relative;
}

/* 顶部阅读进度 */
.page-privacy .pv-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 40;
  background: rgba(19, 41, 61, 0.55);
  pointer-events: none;
}

.page-privacy .pv-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-cyan-soft));
  box-shadow: 0 0 14px rgba(53, 224, 214, 0.4);
}

@keyframes pv-progress-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .page-privacy .pv-progress__bar {
      transform: scaleX(0);
      animation-name: pv-progress-grow;
      animation-duration: auto;
      animation-timing-function: linear;
      animation-fill-mode: both;
      animation-timeline: scroll(root block);
      animation-range: 0 100%;
    }
  }
}

/* 首屏 */
.page-privacy .pv-hero {
  padding-top: 44px;
  padding-bottom: 4px;
}

.page-privacy .pv-hero .crumbs {
  margin-bottom: 30px;
}

.page-privacy .pv-tag {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-privacy .pv-hero__title {
  margin: 0 0 20px;
  font-size: clamp(38px, 8vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--c-cream);
}

.page-privacy .pv-hero__lead {
  max-width: var(--pv-read);
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-cream);
  opacity: 0.9;
}

.page-privacy .pv-glance {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-privacy .pv-glance__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--c-mute);
}

.page-privacy .pv-glance__item .mono {
  font-size: 13px;
  letter-spacing: 0.08em;
}

/* 首屏配图 */
.page-privacy .pv-visual {
  margin: 28px 0 8px;
}

.page-privacy .pv-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* 阅读主体 */
.page-privacy .pv-read {
  padding-bottom: 72px;
}

.page-privacy .pv-section {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-block: 40px;
  border-top: 1px solid var(--c-line);
}

.page-privacy .pv-section::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 56px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--c-cyan);
  opacity: 0.55;
}

.page-privacy .pv-num {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
}

.page-privacy .pv-num__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-mute);
}

.page-privacy .pv-body h2 {
  margin: 0 0 16px;
  font-size: clamp(23px, 4vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--c-cream);
}

.page-privacy .pv-body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-cream);
  opacity: 0.92;
}

.page-privacy .pv-body a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(53, 224, 214, 0.4);
  text-underline-offset: 3px;
}

.page-privacy .pv-body a:hover,
.page-privacy .pv-body a:focus-visible {
  color: var(--c-cyan-soft);
  text-decoration-color: currentColor;
}

/* 分类定义列表 */
.page-privacy .pv-facts {
  list-style: none;
  margin: 24px 0 20px;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-privacy .pv-fact {
  padding-top: 16px;
  border-top: 1px dashed var(--c-line);
}

.page-privacy .pv-fact__name {
  margin: 0 0 7px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-cyan-soft);
}

.page-privacy .pv-fact__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-cream);
  opacity: 0.85;
}

/* 用途说明块 */
.page-privacy .pv-claims {
  list-style: none;
  margin: 24px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .pv-claim {
  padding: 16px 20px;
  background: var(--c-navy);
  border-left: 2px solid var(--c-cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-privacy .pv-claim__name {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-cream);
}

.page-privacy .pv-claim__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mute);
}

/* 引用段落 */
.page-privacy .pv-quote {
  margin: 22px 0;
  padding: 18px 22px;
  background: var(--c-navy);
  border-left: 3px solid var(--c-amber);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-cream);
  opacity: 0.92;
}

/* 步骤条 */
.page-privacy .pv-steps {
  list-style: none;
  counter-reset: pv-step;
  margin: 18px 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .pv-steps li {
  counter-increment: pv-step;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-cream);
  opacity: 0.9;
}

.page-privacy .pv-steps li::before {
  content: "0" counter(pv-step);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

/* 联系信息块 */
.page-privacy .pv-contact {
  margin: 22px 0 24px;
  padding: 22px 24px;
  background: var(--c-teal);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
}

.page-privacy .pv-contact__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-mute);
}

.page-privacy .pv-contact__mail {
  margin: 0 0 12px;
  font-size: 16px;
  letter-spacing: 0.05em;
  color: var(--c-cyan);
  word-break: break-all;
}

.page-privacy .pv-contact__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-cream);
  opacity: 0.85;
}

.page-privacy .pv-contact__note a {
  color: var(--c-cyan);
}

/* 回到顶部刻度 */
.page-privacy .pv-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-mute);
  text-decoration: none;
}

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

/* 平板与桌面：章节编号独立成栏 */
@media (min-width: 900px) {
  .page-privacy .pv-hero {
    padding-top: 64px;
  }

  .page-privacy .pv-section {
    grid-template-columns: var(--pv-num-w) minmax(0, 1fr);
    column-gap: var(--pv-gap);
    padding-block: 60px;
  }

  .page-privacy .pv-num {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding-top: 8px;
  }

  .page-privacy .pv-num__note {
    writing-mode: vertical-rl;
    letter-spacing: 0.34em;
  }

  .page-privacy .pv-body {
    max-width: var(--pv-read);
  }

  .page-privacy .pv-visual {
    margin-top: 36px;
  }
}

/* 窄屏保护 */
@media (max-width: 480px) {
  .page-privacy .pv-glance {
    gap: 8px;
  }

  .page-privacy .pv-glance__item {
    padding: 6px 12px;
    font-size: 12px;
  }

  .page-privacy .pv-claim,
  .page-privacy .pv-contact {
    padding: 16px 18px;
  }

  .page-privacy .pv-quote {
    padding: 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-progress__bar {
    animation: none;
    transform: none;
  }
}