.page-about{
  --ab-pad: clamp(48px, 8vw, 112px);
  --ab-gap: clamp(16px, 2.6vw, 32px);
  --ab-soft: #B4C2D6;
  --ab-mute: #93A2B8;
  background: var(--ink);
  color: var(--frost);
  overflow-x: hidden;
}

.page-about .crumb{
  padding: 22px 0 4px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(30px, 5.5vw, 68px) 0 clamp(46px, 7vw, 96px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__media{
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-about .about-hero__media img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.65) contrast(1.05);
}

.page-about .about-hero__media::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 79px, var(--line) 79px 80px),
    linear-gradient(180deg, rgba(5,7,12,.55) 0%, rgba(5,7,12,.9) 58%, var(--ink) 100%);
}

.page-about .about-hero__inner{
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-hero__title{
  margin: 16px 0 0;
  font-size: clamp(38px, 9.2vw, 104px);
  line-height: .97;
  font-weight: 900;
  letter-spacing: -.03em;
  transform: skewX(-2.4deg);
  transform-origin: 0 100%;
}

.page-about .about-hero__title-out{
  color: var(--ice);
}

@supports (-webkit-text-stroke: 1px #000){
  .page-about .about-hero__title-out{
    color: transparent;
    -webkit-text-stroke: 1.6px var(--neon);
  }
}

.page-about .about-hero__side{
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  align-content: start;
}

.page-about .about-hero__lede{
  margin: 0;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: #C9D4E6;
  max-width: 40ch;
}

.page-about .about-hero__stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .astat{
  background: rgba(11, 20, 36, .8);
  padding: 16px 14px 14px;
}

.page-about .astat__v{
  display: block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--ice);
}

.page-about .astat:nth-child(2) .astat__v{ color: var(--frost); }
.page-about .astat:nth-child(3) .astat__v{ color: var(--aurora); }
.page-about .astat:nth-child(4) .astat__v{ color: var(--frost); }

.page-about .astat__k{
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--steel);
}

/* ---------- 起点与主张 ---------- */
.page-about .about-origin{
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-origin__grid{
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .about-origin__body .prose p{
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ab-soft);
  max-width: 38ch;
}

.page-about .about-origin__body .prose p:last-child{
  margin-bottom: 0;
}

.page-about .about-aside{
  border-top: 1px solid var(--line);
}

.page-about .about-aside__row{
  padding: 16px 0;
  border-bottom: 1px solid rgba(30, 42, 58, .7);
}

.page-about .about-aside__k{
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-about .about-aside__v{
  margin: 6px 0 0;
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--frost);
}

/* ---------- 赛季时间轴 ---------- */
.page-about .about-timeline{
  position: relative;
  overflow: hidden;
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-timeline::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 26%, #000 74%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 26%, #000 74%, transparent);
}

.page-about .about-timeline .wrap{
  position: relative;
}

.page-about .about-timeline .lede{
  margin-top: 12px;
  max-width: 42ch;
}

.page-about .tl{
  list-style: none;
  margin: clamp(30px, 5vw, 58px) 0 0;
  padding: 0 0 0 30px;
  position: relative;
}

.page-about .tl::before{
  content: "";
  position: absolute;
  left: 7px;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background: linear-gradient(180deg, var(--ice) 0%, var(--aurora) 46%, var(--line) 100%);
}

.page-about .tl__item{
  position: relative;
  padding: 0 0 clamp(30px, 5vw, 58px);
  scroll-margin-top: 90px;
}

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

.page-about .tl__node{
  position: absolute;
  left: -30px;
  top: 6px;
  width: 15px;
  height: 15px;
  background: var(--ink);
  border: 1px solid var(--ice);
  transform: rotate(45deg);
  transition: background .18s ease, border-color .18s ease;
}

.page-about .tl__item:hover .tl__node,
.page-about .tl__item:focus-within .tl__node{
  background: var(--ice);
  border-color: var(--neon);
}

.page-about .tl__season{
  display: block;
  font-family: var(--mono);
  font-size: clamp(28px, 5.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.05em;
  color: var(--frost);
  margin-bottom: 10px;
}

.page-about .tl__item:last-child .tl__season{
  color: var(--aurora);
}

.page-about .tl__title{
  margin: 0 0 8px;
  font-size: clamp(17px, 2.2vw, 23px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--frost);
}

.page-about .tl__text{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ab-soft);
  max-width: 62ch;
}

.page-about .tl__meta{
  display: inline-block;
  margin: 14px 0 0;
  padding-left: 9px;
  border-left: 2px solid var(--ice);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ice);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team{
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-team__fig{
  margin: clamp(26px, 4vw, 44px) 0 clamp(24px, 3.4vw, 40px);
}

.page-about .about-team__fig img,
.page-about .about-flow__fig img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .media__cap{
  display: block;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
  max-width: 60ch;
}

.page-about .teams{
  display: grid;
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .team{
  background: var(--navy);
  border-top: 4px solid var(--ice);
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.4vw, 26px) clamp(26px, 3.6vw, 44px);
  transition: background .18s ease, border-color .18s ease;
}

.page-about .team--eng{ border-top-color: var(--aurora); }
.page-about .team--ops{ border-top-color: var(--neon); }

.page-about .team:hover{
  background: #0E1A2C;
}

.page-about .team__num{
  display: block;
  font-family: var(--mono);
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.06em;
  color: var(--ice);
}

.page-about .team--eng .team__num{ color: var(--aurora); }
.page-about .team--ops .team__num{ color: var(--neon); }

.page-about .team__unit{
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--steel);
  margin-left: 6px;
}

.page-about .team__role{
  margin: 16px 0 10px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--frost);
}

.page-about .team__desc{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ab-soft);
}

.page-about .team__list{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .team__list li{
  position: relative;
  padding: 10px 0 10px 16px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ab-mute);
  border-bottom: 1px solid rgba(30, 42, 58, .6);
}

.page-about .team__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--ice);
}

.page-about .team--eng .team__list li::before{ border-color: var(--aurora); }
.page-about .team--ops .team__list li::before{ border-color: var(--neon); }

/* ---------- 内容生产日常 ---------- */
.page-about .about-flow{
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-flow__grid{
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .flow{
  list-style: none;
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  padding: 0;
}

.page-about .flow__step{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 18px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-top: 1px solid var(--line);
}

.page-about .flow__step:last-child{
  border-bottom: 1px solid var(--line);
}

.page-about .flow__idx{
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ice);
  padding-top: 5px;
}

.page-about .flow__title{
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--frost);
}

.page-about .flow__text{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ab-soft);
  max-width: 56ch;
}

.page-about .about-flow__fig{
  margin: 0;
}

/* ---------- 覆盖与更新节奏 ---------- */
.page-about .about-reach{
  padding: var(--ab-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .reach{
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .reach__item{
  background: var(--ink);
  padding: clamp(20px, 3vw, 30px);
}

.page-about .reach__v{
  display: block;
  font-family: var(--mono);
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.06em;
  color: var(--frost);
}

.page-about .reach__item:nth-child(2) .reach__v{ color: var(--ice); }
.page-about .reach__item:nth-child(3) .reach__v{ color: var(--aurora); }

.page-about .reach__u{
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--steel);
  margin-left: 6px;
}

.page-about .reach__k{
  display: block;
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ab-mute);
}

.page-about .about-reach__note{
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--ab-soft);
  max-width: 62ch;
}

/* ---------- 合作与认可 ---------- */
.page-about .about-honor{
  padding: var(--ab-pad) 0;
}

.page-about .about-partner{
  display: grid;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--line);
}

.page-about .partner{
  background: var(--navy);
  padding: clamp(20px, 3vw, 30px);
}

.page-about .partner__v{
  display: block;
  font-family: var(--mono);
  font-size: clamp(30px, 4.2vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.06em;
  color: var(--neon);
}

.page-about .partner__u{
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--steel);
  margin-left: 6px;
}

.page-about .partner__k{
  margin: 14px 0 10px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--frost);
}

.page-about .partner__d{
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ab-mute);
}

.page-about .about-quote{
  position: relative;
  margin: clamp(30px, 5vw, 56px) 0 0;
  background: var(--frost);
  color: var(--ink);
  padding: clamp(30px, 5vw, 64px) clamp(28px, 5vw, 64px) clamp(30px, 5vw, 64px) clamp(34px, 5.4vw, 72px);
}

.page-about .about-quote::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--ice) 0%, var(--aurora) 100%);
}

.page-about .about-quote__text{
  margin: 0;
  font-size: clamp(21px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 28ch;
}

.page-about .about-quote__src{
  display: block;
  margin-top: 22px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: #4A5568;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta{
  padding: var(--ab-pad) 0 calc(var(--ab-pad) * .75);
}

.page-about .about-cta__inner{
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .about-cta__text{
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ab-soft);
  max-width: 56ch;
}

.page-about .about-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px){
  .page-about .reach{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-partner{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px){
  .page-about .teams{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px){
  .page-about .about-hero__inner{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
    gap: clamp(32px, 5vw, 80px);
  }

  .page-about .about-origin__grid{
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: start;
  }

  .page-about .about-flow__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, .76fr);
    align-items: start;
  }

  .page-about .about-cta__inner{
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-about .about-cta__actions{
    justify-content: flex-end;
    max-width: 420px;
  }

  .page-about .tl{
    padding-left: 40px;
  }

  .page-about .tl::before{
    left: 9px;
  }

  .page-about .tl__node{
    left: -40px;
    width: 19px;
    height: 19px;
    top: 4px;
  }
}

@media (min-width: 1200px){
  .page-about .about-origin__body .prose p{
    max-width: 40ch;
  }

  .page-about .tl__text{
    max-width: 68ch;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .tl__node,
  .page-about .team{
    transition: none;
  }
}