.page-privacy {
  --privacy-measure: 720px;
  --privacy-rail: 132px;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: 88px;
}

.page-privacy .privacy-shell {
  padding-top: 26px;
}

.page-privacy .breadcrumb {
  margin-bottom: 22px;
}

/* 首屏 */
.page-privacy .privacy-hero {
  max-width: 840px;
}

.page-privacy .privacy-hero .eyebrow {
  color: var(--teal);
  margin: 0 0 14px;
}

.page-privacy .privacy-hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.page-privacy .privacy-hero__lede {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  margin: 0;
  max-width: 38em;
}

.page-privacy .privacy-stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.page-privacy .privacy-stamp__chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--amber);
  font-size: 13px;
  padding-bottom: 2px;
  border-bottom: 1px dashed rgba(232, 169, 75, 0.55);
  cursor: help;
}

.page-privacy .privacy-stamp__pop {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 6;
  width: min(280px, 78vw);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: normal;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
    visibility 0.22s var(--ease);
}

.page-privacy .privacy-stamp__chip:hover .privacy-stamp__pop,
.page-privacy .privacy-stamp__chip:focus .privacy-stamp__pop,
.page-privacy .privacy-stamp__chip:focus-within .privacy-stamp__pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* 视觉焦点 */
.page-privacy .privacy-figure {
  position: relative;
  margin: 32px 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: linear-gradient(
    140deg,
    rgba(79, 224, 200, 0.16),
    rgba(30, 58, 82, 0.55) 55%,
    rgba(232, 169, 75, 0.12)
  );
}

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

/* 布局：轨道 + 正文 */
.page-privacy .privacy-layout {
  display: grid;
  gap: 6px;
  margin-top: 36px;
}

.page-privacy .privacy-rail {
  position: sticky;
  top: 62px;
  z-index: 4;
  background: var(--ink);
  padding: 8px 0 10px;
  border-bottom: 1px solid var(--line-soft);
  overflow-x: auto;
}

.page-privacy .privacy-rail__cap {
  display: none;
}

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

.page-privacy .privacy-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--teal);
  border-color: var(--teal);
  background: rgba(79, 224, 200, 0.08);
}

.page-privacy .privacy-rail__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--track);
}

.page-privacy .privacy-rail__link:hover .privacy-rail__dot {
  background: var(--teal);
}

.page-privacy .privacy-rail__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

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

/* 章节 */
.page-privacy .privacy-sec {
  padding: 34px 0;
  scroll-margin-top: 128px;
}

.page-privacy .privacy-sec + .privacy-sec {
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-sec h2 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(21px, 4.6vw, 29px);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-sec h2 .section-number {
  font-family: var(--font-mono);
  font-size: 0.62em;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-privacy .privacy-body p {
  max-width: 38em;
  margin: 0 0 1.1em;
  font-size: 16.5px;
  line-height: 1.85;
}

.page-privacy .privacy-body a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 224, 200, 0.45);
}

.page-privacy .privacy-body a:hover,
.page-privacy .privacy-body a:focus-visible {
  border-bottom-color: var(--teal);
}

.page-privacy .privacy-note {
  margin-top: 6px;
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(232, 169, 75, 0.08);
  color: var(--paper);
  font-size: 15px;
}

/* 定义块 */
.page-privacy .privacy-def {
  margin: 20px 0;
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--teal);
}

.page-privacy .privacy-def h3 {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-privacy .privacy-def p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.85;
}

/* 用途列表 */
.page-privacy .privacy-uses {
  margin: 22px 0 20px;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-uses li {
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-uses li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-privacy .privacy-uses__k {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-privacy .privacy-uses li p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

/* 留存清单 */
.page-privacy .privacy-keep {
  margin: 22px 0 24px;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--panel);
  overflow: hidden;
}

.page-privacy .privacy-keep li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 18px;
}

.page-privacy .privacy-keep li + li {
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-keep__k {
  font-size: 14.5px;
  color: var(--paper);
}

.page-privacy .privacy-keep__v {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--amber);
  letter-spacing: 0.01em;
}

/* 步骤 */
.page-privacy .privacy-steps {
  counter-reset: privacy-step;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-steps li {
  counter-increment: privacy-step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper);
}

.page-privacy .privacy-steps li:last-child {
  margin-bottom: 0;
}

.page-privacy .privacy-steps li::before {
  content: counter(privacy-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--teal);
}

/* 修订摘要折叠面板 */
.page-privacy .panel {
  margin: 18px 0 0;
}

.page-privacy .privacy-log {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-log li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-log li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-privacy .privacy-log__date {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-privacy .privacy-log__text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 560px) {
  .page-privacy .privacy-keep li {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-shell {
    padding-top: 34px;
  }

  .page-privacy .privacy-figure {
    aspect-ratio: 1200 / 420;
    margin-top: 38px;
  }

  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-rail) minmax(0, var(--privacy-measure));
    column-gap: 64px;
    justify-content: center;
    align-items: start;
    margin-top: 52px;
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: 112px;
    padding: 0;
    border-bottom: 0;
    background: transparent;
    overflow: visible;
  }

  .page-privacy .privacy-rail__cap {
    display: block;
    margin: 0 0 16px;
    color: var(--muted);
  }

  .page-privacy .privacy-rail__list {
    position: relative;
    flex-direction: column;
    gap: 0;
    padding-left: 0;
  }

  .page-privacy .privacy-rail__list::before {
    content: "";
    position: absolute;
    left: 3px;
    top: 12px;
    bottom: 12px;
    width: 1px;
    background: var(--line-soft);
  }

  .page-privacy .privacy-rail__link {
    display: flex;
    gap: 8px;
    padding: 10px 0 10px 18px;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-size: 13.5px;
    line-height: 1.5;
    white-space: normal;
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    background: transparent;
  }

  .page-privacy .privacy-rail__dot {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
  }

  .page-privacy .privacy-sec {
    padding: 44px 0;
    scroll-margin-top: 120px;
  }

  .page-privacy .privacy-sec:first-child {
    padding-top: 4px;
  }

  .page-privacy .privacy-uses li {
    padding: 20px 0;
  }

  .page-privacy .privacy-def {
    margin: 24px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-stamp__pop,
  .page-privacy .privacy-rail__link {
    transition: none;
  }

  .page-privacy .privacy-stamp__chip:hover .privacy-stamp__pop,
  .page-privacy .privacy-stamp__chip:focus .privacy-stamp__pop,
  .page-privacy .privacy-stamp__chip:focus-within .privacy-stamp__pop {
    transform: none;
  }
}