.page-about{
  --about-line: rgba(94,113,137,.32);
  --about-tl-year: 54px;
  --about-tl-gap: 26px;
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about img{
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about .section{
  padding-block: 56px;
}

.page-about .hero{
  padding-block: 18px 10px;
}

.page-about .breadcrumbs{
  padding-top: 16px;
}

/* ---------- 首屏框景 ---------- */
.page-about .frame.hero__frame{
  position: relative;
  padding: 22px 18px 26px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(69,224,206,.18), transparent 62%),
    radial-gradient(90% 80% at 0% 110%, rgba(255,122,51,.10), transparent 60%),
    var(--ink-2);
  overflow: hidden;
}

.page-about .hero__text{
  margin-top: 14px;
}

.page-about h1{
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 7.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--white);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-about .hero__lede{
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .01em;
  color: var(--mist);
}

.page-about .figures{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px;
}

.page-about .figures__item{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 14px 18px;
  border-radius: var(--radius-md);
  background: var(--deep-teal);
}

.page-about .figures__item:nth-child(3){
  background: var(--wine);
}

.page-about .figures__item::before{
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  top: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  opacity: .75;
}

.page-about .figures__item:nth-child(2)::before{ background: var(--orange); }
.page-about .figures__item:nth-child(3)::before{ background: var(--green); }
.page-about .figures__item:nth-child(4)::before{ background: var(--cyan); }

.page-about .figures__value{
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.page-about .figures__num{
  font-size: clamp(26px, 7vw, 42px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-about .figures__unit{
  font-size: 13px;
  color: var(--grey);
}

.page-about .figures__label{
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  opacity: .82;
}

/* ---------- 章节头 ---------- */
.page-about .sec-head{
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.page-about .sec-head__idx{
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-about .sec-head h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 5vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--white);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-about .sec-lede{
  margin: 0 0 20px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  opacity: .9;
}

.page-about .linkline{
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .linkline a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(69,224,206,.4);
}

.page-about .linkline a:hover,
.page-about .linkline a:focus-visible{
  border-bottom-color: var(--cyan);
}

/* ---------- 年份胶囊索引 ---------- */
.page-about .years{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 20px;
  scrollbar-width: thin;
}

.page-about .years__link{
  flex: 0 0 auto;
  padding: 7px 15px;
  border-radius: var(--pill);
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  background: var(--ink-2);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .years__link:hover,
.page-about .years__link:focus-visible{
  background: rgba(69,224,206,.14);
  color: var(--cyan);
}

/* ---------- 时间线 ---------- */
.page-about .timeline-wrap{
  position: relative;
  padding: 22px 16px 6px;
  border-radius: var(--radius-lg);
  background: var(--ink-2);
  overflow: hidden;
}

.page-about .timeline__bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  pointer-events: none;
}

.page-about .timeline{
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .timeline::before{
  content: "";
  position: absolute;
  top: 10px;
  bottom: 18px;
  left: calc(var(--about-tl-year) + var(--about-tl-gap) / 2 - 0.5px);
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(69,224,206,.06));
}

.page-about .timeline__item{
  position: relative;
  display: grid;
  grid-template-columns: var(--about-tl-year) minmax(0,1fr);
  gap: var(--about-tl-gap);
  padding-bottom: 26px;
  scroll-margin-top: 90px;
}

.page-about .timeline__item:last-child{
  padding-bottom: 6px;
}

.page-about .timeline__item::before{
  content: "";
  position: absolute;
  top: 6px;
  left: calc(var(--about-tl-year) + var(--about-tl-gap) / 2 - 6px);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-sizing: border-box;
}

.page-about .timeline__year{
  font-size: 14px;
  line-height: 1.6;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-about .timeline__body h3{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-about .timeline__body p{
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  opacity: .92;
}

/* ---------- 编辑部的一天 ---------- */
.page-about .desk{
  display: grid;
  gap: 28px;
}

.page-about .desk__lede{
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .crew{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .crew__row{
  position: relative;
  padding: 14px 16px 14px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-2);
  transition: background var(--dur) var(--ease);
}

.page-about .crew__row::before{
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 3px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-about .crew__row:hover::before,
.page-about .crew__row:focus-within::before{
  background: var(--cyan);
}

.page-about .crew__name{
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-about .crew__row p{
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  opacity: .92;
}

.page-about .beats{
  list-style: none;
  margin: 20px 0 0;
  padding: 16px;
  display: grid;
  gap: 10px;
  border-radius: var(--radius-md);
  background: var(--deep-teal);
}

.page-about .beats__item{
  display: grid;
  grid-template-columns: 62px minmax(0,1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .beats__item:last-child{
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .beats__time{
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-about .beats__item--live .beats__time{
  color: var(--orange);
}

.page-about .desk__media{
  position: relative;
}

.page-about .desk__media img{
  width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-about .desk__caption{
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--grey);
}

/* ---------- 字段与校对 ---------- */
.page-about .fields{
  display: grid;
  gap: 24px;
}

.page-about .fields__main p{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .fields__list{
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .fields__list .pill{
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--white);
  background: var(--deep-teal);
}

.page-about .fields__note{
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey);
}

.page-about .fields__side{
  padding: 20px 18px;
  border-radius: var(--radius-lg);
  background: var(--wine);
}

.page-about .fields__side h3{
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-about .checks{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .checks li{
  display: grid;
  grid-template-columns: 28px minmax(0,1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .checks__no{
  font-size: 12px;
  color: var(--orange);
}

.page-about .fields__sideNote{
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(201,214,230,.72);
}

/* ---------- 数据来源与合作 ---------- */
.page-about .partner{
  display: grid;
  gap: 22px;
}

.page-about .partner__body p{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .partner__steps{
  list-style: none;
  margin: 0;
  padding: 18px;
  display: grid;
  gap: 12px;
  border-radius: var(--radius-lg);
  background: var(--ink-2);
  border-left: 3px solid var(--cyan);
}

.page-about .partner__steps li{
  display: grid;
  grid-template-columns: 32px minmax(0,1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .partner__no{
  font-size: 12px;
  color: var(--green);
}

/* ---------- 移动端方案 ---------- */
.page-about .mobile{
  display: grid;
  gap: 22px;
}

.page-about .mobile__text p{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .mobile__facts{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 10px;
}

.page-about .mobile__facts li{
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 12px;
  border-radius: var(--radius-md);
  background: var(--ink-2);
  text-align: left;
}

.page-about .mobile__num{
  font-size: clamp(22px, 6vw, 32px);
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.02em;
}

.page-about .mobile__label{
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  opacity: .8;
}

/* ---------- 收束 ---------- */
.page-about .outro__panel{
  position: relative;
  display: grid;
  gap: 22px;
  padding: 26px 20px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(69,224,206,.16), transparent 58%),
    var(--ink-2);
  overflow: hidden;
}

.page-about .outro__text h2{
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 5vw, 32px);
  line-height: 1.25;
  color: var(--white);
  transform: skewX(-2deg);
  transform-origin: left bottom;
}

.page-about .outro__text p{
  margin: 12px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .outro__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-about .outro__media img{
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px){
  .page-about .section{
    padding-block: 84px;
  }

  .page-about .hero{
    padding-block: 28px 14px;
  }

  .page-about .frame.hero__frame{
    padding: 34px 32px 36px;
  }

  .page-about .timeline{
    --about-tl-year: 88px;
    --about-tl-gap: 34px;
  }

  .page-about .timeline__year{
    position: sticky;
    top: 96px;
    font-size: 18px;
  }

  .page-about .timeline-wrap{
    padding: 30px 28px 12px;
  }

  .page-about .timeline__body h3{
    font-size: 19px;
  }

  .page-about .beats{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .page-about .beats__item:nth-last-child(2){
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (min-width: 960px){
  .page-about .hero__grid{
    display: grid;
    grid-template-columns: minmax(0,1.3fr) minmax(0,1fr);
    gap: 40px;
    align-items: end;
  }

  .page-about .figures{
    margin-top: 0;
  }

  .page-about .desk{
    grid-template-columns: minmax(0,1.2fr) minmax(0,.8fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .desk__media{
    margin-top: 48px;
  }

  .page-about .fields{
    grid-template-columns: minmax(0,1.35fr) minmax(0,.65fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .partner{
    grid-template-columns: minmax(0,1.25fr) minmax(0,.75fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .mobile{
    grid-template-columns: minmax(0,1.4fr) minmax(0,.6fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .mobile__facts{
    grid-template-columns: minmax(0,1fr);
  }

  .page-about .outro__panel{
    grid-template-columns: minmax(0,1.15fr) minmax(0,.85fr);
    align-items: center;
    gap: 40px;
    padding: 40px 36px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .years__link,
  .page-about .crew__row,
  .page-about .crew__row::before{
    transition-duration: 1ms;
  }
}