.page-privacy{
  --prv-measure: 68ch;
  --prv-toc-w: 218px;
  background: var(--bv-chalk);
  color: var(--bv-ink);
  font-family: var(--font-body);
}

/* 首屏 */
.page-privacy .prv-hero{
  position: relative;
  overflow: hidden;
  background: var(--bv-deep);
  color: var(--bv-chalk);
}
.page-privacy .prv-hero::before{
  content:"";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(215,220,212,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(215,220,212,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.page-privacy .prv-hero__inner{
  position: relative;
  padding-top: clamp(24px, 5vw, 52px);
  padding-bottom: clamp(30px, 6vw, 64px);
}
.page-privacy .prv-hero .crumbs{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bv-mist-lit);
}
.page-privacy .prv-hero .crumbs a{
  color: var(--bv-mist-lit);
  text-decoration: none;
}
.page-privacy .prv-hero .crumbs a:hover,
.page-privacy .prv-hero .crumbs a:focus-visible{
  color: var(--bv-signal);
}
.page-privacy .prv-hero .eyebrow{
  margin-top: clamp(26px, 5vw, 48px);
  color: var(--bv-signal);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .16em;
}
.page-privacy .prv-hero h1{
  margin: 14px 0 0;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 6vw, 58px);
  line-height: 1.18;
  letter-spacing: .02em;
}
.page-privacy .prv-hero .lead{
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: rgba(246,242,232,.82);
}
.page-privacy .prv-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--bv-hair);
}
.page-privacy .prv-meta li{
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-privacy .prv-meta__k{
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--bv-mist-lit);
}
.page-privacy .prv-meta__v{
  font-size: 14px;
  color: var(--bv-chalk);
}
.page-privacy .prv-meta__v.num{
  font-family: var(--font-num);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--bv-signal);
}
.page-privacy .prv-hero__media{
  position: relative;
  margin: 0;
}
.page-privacy .prv-hero__media::after{
  content:"";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(12,43,38,.55), rgba(7,26,23,.08) 52%, rgba(7,26,23,.86));
  pointer-events: none;
}
.page-privacy .prv-hero__media img{
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 300px);
  object-fit: cover;
  object-position: center;
}

/* 正文两栏：章节索引 + 单栏条款 */
.page-privacy .prv-body{
  display: grid;
  gap: clamp(24px, 5vw, 52px);
  padding-top: clamp(32px, 6vw, 72px);
  padding-bottom: clamp(48px, 8vw, 108px);
}
.page-privacy .prv-toc{
  border-top: 2px solid var(--bv-step);
  padding-top: 14px;
}
.page-privacy .prv-toc__title{
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--bv-mist);
}
.page-privacy .prv-toc__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-privacy .prv-toc__list a{
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 11px;
  border: 1px solid var(--bv-grid);
  border-left: 2px solid var(--bv-grid);
  background: rgba(255,255,255,.62);
  color: var(--bv-ink);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}
.page-privacy .prv-toc__num{
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 12px;
  color: var(--bv-mist);
}
.page-privacy .prv-toc__list a:hover,
.page-privacy .prv-toc__list a:focus-visible{
  border-color: var(--bv-signal);
  border-left-color: var(--bv-signal);
  background: rgba(47,243,214,.13);
  transform: translateX(2px);
}
.page-privacy .prv-toc__tip{
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--bv-mist);
}

.page-privacy .prv-doc{
  max-width: var(--prv-measure);
}
.page-privacy .prv-doc p{
  margin: 0 0 1.1em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--bv-ink);
}
.page-privacy .prv-doc a{
  color: var(--bv-step);
  text-decoration: underline;
  text-decoration-color: var(--bv-track);
  text-underline-offset: 3px;
}
.page-privacy .prv-doc a:hover,
.page-privacy .prv-doc a:focus-visible{
  color: var(--bv-track);
}

/* 条款块 */
.page-privacy .prv-clause{
  scroll-margin-top: 92px;
}
.page-privacy .prv-clause + .prv-clause{
  margin-top: clamp(36px, 6vw, 72px);
  padding-top: clamp(28px, 5vw, 52px);
  border-top: 1px solid var(--bv-grid);
}
.page-privacy .prv-clause__head{
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}
.page-privacy .prv-clause__num{
  flex: none;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--bv-step);
}
.page-privacy .prv-clause h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 3vw, 27px);
  line-height: 1.35;
  letter-spacing: .02em;
}
.page-privacy .prv-clause h3{
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .04em;
}
.page-privacy .prv-clause--panel{
  padding: 20px clamp(16px, 3vw, 28px) 8px;
  border-left: 3px solid var(--bv-step);
  background: rgba(18,67,59,.06);
}

/* 两类信息对照 */
.page-privacy .prv-split{
  display: grid;
  gap: 14px;
  margin: 20px 0 22px;
}
.page-privacy .prv-split__card{
  padding: 18px 18px 6px;
  border: 1px solid var(--bv-grid);
  background: rgba(255,255,255,.66);
}
.page-privacy .prv-split__card p{
  margin-bottom: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(16,22,19,.82);
}
.page-privacy .prv-split__card--dark{
  border-color: rgba(47,243,214,.34);
  background: var(--bv-step);
}
.page-privacy .prv-split__card--dark h3{
  color: var(--bv-signal);
}
.page-privacy .prv-split__card--dark p{
  color: rgba(246,242,232,.85);
}

/* 关键句 */
.page-privacy .prv-key{
  margin: 22px 0;
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--bv-signal);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.75;
  color: var(--bv-step);
}

/* 用途清单 */
.page-privacy .prv-uses{
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--bv-grid);
}
.page-privacy .prv-uses li{
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--bv-grid);
}
.page-privacy .prv-uses__tag{
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--bv-track);
}
.page-privacy .prv-uses p{
  margin: 0;
  font-size: 15px;
}

/* 要点列表 */
.page-privacy .prv-list{
  margin: 16px 0 20px;
  padding: 0;
  list-style: none;
}
.page-privacy .prv-list li{
  position: relative;
  margin-bottom: 10px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
}
.page-privacy .prv-list li::before{
  content:"";
  position: absolute;
  left: 0;
  top: .82em;
  width: 9px;
  height: 2px;
  background: var(--bv-track);
}

/* 权利条目 */
.page-privacy .prv-rights{
  margin: 18px 0 22px;
  border-top: 1px solid rgba(18,67,59,.24);
}
.page-privacy .prv-rights > div{
  padding: 13px 0;
  border-bottom: 1px solid rgba(18,67,59,.24);
}
.page-privacy .prv-rights dt{
  font-size: 15px;
  font-weight: 800;
  color: var(--bv-step);
}
.page-privacy .prv-rights dd{
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.8;
}

/* 可展开解释 */
.page-privacy .prv-note{
  margin: 18px 0 4px;
  padding: 10px 14px;
  border: 1px dashed var(--bv-grid);
  background: rgba(255,255,255,.55);
}
.page-privacy .prv-note summary{
  display: flex;
  align-items: baseline;
  gap: 9px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--bv-step);
  list-style: none;
}
.page-privacy .prv-note summary::-webkit-details-marker{
  display: none;
}
.page-privacy .prv-note summary::before{
  content:"+";
  font-family: var(--font-num);
  font-size: 16px;
  line-height: 1;
  color: var(--bv-track);
}
.page-privacy .prv-note[open] summary::before{
  content:"–";
}
.page-privacy .prv-note p{
  margin: 10px 0 4px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(16,22,19,.8);
}

/* 邮箱 */
.page-privacy .prv-mail{
  display: inline;
  padding: 1px 6px;
  border-bottom: 1px solid var(--bv-track-soft);
  background: rgba(255,107,53,.14);
  font-family: var(--font-num);
  font-size: .94em;
  word-break: break-word;
}

@media (min-width: 640px){
  .page-privacy .prv-split{
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .page-privacy .prv-uses li{
    grid-template-columns: 96px minmax(0,1fr);
    gap: 16px;
    align-items: baseline;
  }
  .page-privacy .prv-rights > div{
    display: grid;
    grid-template-columns: 84px minmax(0,1fr);
    gap: 16px;
    align-items: baseline;
  }
  .page-privacy .prv-rights dd{
    margin: 0;
  }
}

@media (min-width: 960px){
  .page-privacy .prv-body{
    grid-template-columns: var(--prv-toc-w) minmax(0,1fr);
    gap: clamp(40px, 6vw, 92px);
    align-items: start;
  }
  .page-privacy .prv-toc{
    position: sticky;
    top: 92px;
    padding-top: 16px;
  }
  .page-privacy .prv-toc__list{
    flex-direction: column;
    gap: 0;
  }
  .page-privacy .prv-toc__list a{
    padding: 9px 10px 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    font-size: 14px;
  }
  .page-privacy .prv-toc__list a:hover,
  .page-privacy .prv-toc__list a:focus-visible{
    background: rgba(47,243,214,.12);
    border-left-color: var(--bv-signal);
  }
}

@media (prefers-reduced-motion: reduce){
  .page-privacy .prv-toc__list a{
    transition: none;
  }
  .page-privacy .prv-toc__list a:hover,
  .page-privacy .prv-toc__list a:focus-visible{
    transform: none;
  }
}