.page-about{
  --about-pad: clamp(44px, 6vw, 92px);
  --about-year-w: 132px;
  background: var(--ink);
  color: var(--paper);
  min-width: 0;
}

.page-about .container{
  max-width: 1180px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  position: relative;
  padding: clamp(28px, 4vw, 44px) 0 clamp(26px, 4vw, 44px);
  background:
    radial-gradient(115% 85% at 86% 6%, rgba(200,162,74,.16), transparent 62%),
    linear-gradient(180deg, #0B1B2B 0%, #0A1826 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(217,226,231,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(217,226,231,.06) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,.85), transparent 88%);
  pointer-events: none;
}

.page-about .about-hero .container{
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid{
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(22px, 3.5vw, 38px);
}

@media (min-width: 900px){
  .page-about .about-hero__grid{
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: end;
  }
}

.page-about .about-hero__lead .eyebrow{
  margin: 0 0 14px;
  color: var(--gold-lift);
  letter-spacing: .18em;
}

.page-about .about-hero h1{
  margin: 0;
  font-size: clamp(30px, 5.2vw, 58px);
  line-height: 1.16;
  letter-spacing: .02em;
  font-weight: 800;
  color: var(--paper);
  max-width: 18em;
}

.page-about .about-hero__lede{
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 40em;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
  color: rgba(243,238,228,.8);
}

.page-about .about-facts{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-fact{
  background: rgba(18,42,68,.86);
  padding: clamp(14px, 2vw, 20px);
  border-left: 2px solid transparent;
  transition: border-color .28s var(--ease), background .28s var(--ease);
}

.page-about .about-fact:hover{
  border-left-color: var(--gold);
  background: rgba(18,42,68,1);
}

.page-about .about-fact__num{
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 28px);
  color: var(--gold-lift);
  letter-spacing: .02em;
  line-height: 1.2;
}

.page-about .about-fact__label{
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--paper);
}

.page-about .about-fact__note{
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--rock);
}

.page-about .about-hero__scale{
  height: 16px;
  margin: clamp(26px, 3.6vw, 42px) 0 18px;
  background:
    repeating-linear-gradient(to right, rgba(217,226,231,.26) 0 1px, transparent 1px 26px);
  border-top: 1px solid var(--line-gold);
}

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

.page-about .about-index__link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  color: rgba(243,238,228,.82);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease);
}

.page-about .about-index__link .mono{
  color: var(--gold);
  font-size: 11px;
  letter-spacing: .12em;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible{
  border-color: var(--gold);
  color: var(--paper);
  background: rgba(200,162,74,.1);
  outline: none;
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec{
  padding: var(--about-pad) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-sec .section-head{
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-about .about-fig{
  margin: 0;
  max-width: 100%;
}

.page-about .about-fig img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, #122A44, #0A1826);
}

.page-about .about-fig figcaption{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--rock);
}

/* ---------- 01 使命 ---------- */
.page-about .about-mission{
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

@media (min-width: 900px){
  .page-about .about-mission{
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
    align-items: start;
  }
}

.page-about .about-mission__body p{
  margin: 0 0 16px;
  max-width: 40em;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.9;
  color: rgba(243,238,228,.84);
}

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

.page-about .about-mission__side{
  border: 1px solid var(--line-gold);
  border-left: 3px solid var(--gold);
  padding: clamp(16px, 2.4vw, 24px);
  background: rgba(18,42,68,.6);
}

.page-about .about-mission__tag{
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold);
}

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

.page-about .about-mission__list li{
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243,238,228,.88);
}

.page-about .about-mission__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--celadon);
}

/* ---------- 02 时间线 ---------- */
.page-about .about-fig--timeline{
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-about .about-timeline{
  display: grid;
  gap: clamp(18px, 3vw, 40px);
}

@media (min-width: 900px){
  .page-about .about-timeline{
    grid-template-columns: var(--about-year-w) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }
}

.page-about .about-years{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

@media (min-width: 900px){
  .page-about .about-years{
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 96px;
    align-self: start;
    padding-bottom: 0;
    border-left: 1px solid var(--line);
  }
}

.page-about .about-years__link{
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--rock);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

@media (min-width: 900px){
  .page-about .about-years__link{
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    justify-content: flex-start;
    padding-left: 16px;
  }
}

.page-about .about-years__link:hover,
.page-about .about-years__link:focus-visible{
  color: var(--gold-lift);
  border-color: var(--gold);
  outline: none;
}

@media (min-width: 900px){
  .page-about .about-years__link:hover,
  .page-about .about-years__link:focus-visible{
    border-left-color: var(--gold);
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }
}

.page-about .about-tl{
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-tl__item{
  position: relative;
  padding: 0 0 clamp(26px, 3.6vw, 40px) clamp(18px, 3vw, 30px);
  border-left: 1px solid var(--line);
}

.page-about .about-tl__item:last-child{
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-about .about-tl__item::before{
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--gold);
}

.page-about .about-tl__year{
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--gold-lift);
}

.page-about .about-tl__title{
  margin: 0 0 8px;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-about .about-tl__text{
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(243,238,228,.76);
}

/* ---------- 03 分区 ---------- */
.page-about .about-regions__intro{
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 900px){
  .page-about .about-regions__intro{
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    align-items: start;
  }
}

.page-about .about-regions__copy p{
  margin: 0 0 14px;
  max-width: 38em;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.9;
  color: rgba(243,238,228,.84);
}

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

.page-about .about-regions__grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .region{
  background: rgba(18,42,68,.72);
  padding: 16px 14px 18px;
  transition: background .25s var(--ease);
}

.page-about .region:hover,
.page-about .region:focus,
.page-about .region:focus-within{
  background: rgba(18,42,68,1);
  outline: none;
}

.page-about .region:focus-visible{
  box-shadow: inset 0 0 0 1px var(--gold);
}

.page-about .region__code{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-lift);
}

.page-about .region__count{
  margin: 8px 0 0;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-about .region--last .region__count{
  color: var(--celadon);
}

.page-about .region__note{
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  transition: max-height .3s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease);
}

.page-about .region:hover .region__note,
.page-about .region:focus .region__note,
.page-about .region:focus-within .region__note{
  max-height: 120px;
  opacity: 1;
  margin-top: 8px;
}

.page-about .about-regions__points{
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

@media (min-width: 760px){
  .page-about .about-regions__points{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .about-regions__points li{
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line-gold);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(243,238,228,.82);
}

.page-about .about-regions__points .mono{
  color: var(--amber);
  font-size: 11px;
  letter-spacing: .16em;
}

/* ---------- 04 团队（米白区） ---------- */
.page-about .about-team{
  background: var(--paper);
  color: var(--ink);
  border-top: 1px solid rgba(11,27,43,.14);
  border-bottom: 1px solid rgba(11,27,43,.14);
}

.page-about .about-team .section-head__num{
  color: var(--terracotta);
}

.page-about .about-team .section-head__title{
  color: var(--ink);
}

.page-about .about-team__grid{
  display: grid;
  gap: clamp(20px, 3vw, 38px);
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 900px){
  .page-about .about-team__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: start;
  }
}

.page-about .about-team__copy p{
  margin: 0 0 14px;
  max-width: 38em;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.9;
  color: rgba(11,27,43,.82);
}

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

.page-about .about-team .about-fig img{
  border-color: rgba(11,27,43,.18);
  background: #E7E0D3;
}

.page-about .about-team .about-fig figcaption{
  color: rgba(11,27,43,.5);
}

.page-about .about-team__roles{
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: rgba(11,27,43,.14);
  border: 1px solid rgba(11,27,43,.14);
}

.page-about .about-team__roles li{
  background: var(--paper);
  padding: 16px 14px 18px;
  display: grid;
  gap: 4px;
}

.page-about .about-team__num{
  font-size: 26px;
  color: var(--ink);
  letter-spacing: .02em;
}

.page-about .about-team__role{
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-about .about-team__desc{
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(11,27,43,.6);
}

.page-about .about-team__flow{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: flow;
}

@media (min-width: 760px){
  .page-about .about-team__flow{
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: rgba(11,27,43,.14);
    border: 1px solid rgba(11,27,43,.14);
  }
}

.page-about .about-team__step{
  background: var(--paper);
  padding: 14px;
  font-size: 13.5px;
  color: var(--ink);
  border-left: 2px solid var(--terracotta);
  display: grid;
  gap: 6px;
}

.page-about .about-team__step .mono{
  font-size: 10.5px;
  letter-spacing: .18em;
  color: rgba(11,27,43,.5);
}

/* ---------- 05 合作与荣誉 ---------- */
.page-about .about-partners__lede{
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  max-width: 44em;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.9;
  color: rgba(243,238,228,.84);
}

.page-about .about-partners__scenes{
  list-style: none;
  margin: 0 0 clamp(26px, 3.6vw, 40px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-partners__scenes .tag{
  padding: 8px 14px;
  font-size: 12.5px;
  letter-spacing: .08em;
}

.page-about .about-honors{
  display: grid;
  gap: 14px;
}

@media (min-width: 760px){
  .page-about .about-honors{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .honor{
  position: relative;
  outline: none;
}

.page-about .honor:focus-visible{
  box-shadow: 0 0 0 2px var(--gold);
}

.page-about .honor__face{
  background: linear-gradient(150deg, rgba(18,42,68,.95), rgba(10,24,38,.95));
  border: 1px solid var(--line-gold);
  padding: clamp(18px, 2.6vw, 26px);
  position: relative;
}

.page-about .honor__front::after{
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 26px;
  height: 26px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  opacity: .55;
}

.page-about .honor__year{
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--amber);
}

.page-about .honor__title{
  margin: 0 0 12px;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold-lift);
  max-width: 12em;
}

.page-about .honor__hint{
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--rock);
}

.page-about .honor__back{
  margin-top: 10px;
  border-left: 2px solid var(--celadon);
}

.page-about .honor__body{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(243,238,228,.82);
}

@media (min-width: 760px) and (hover: hover){
  .page-about .honor__inner{
    position: relative;
    min-height: 218px;
    transform-style: preserve-3d;
    transition: transform .55s var(--ease);
  }

  .page-about .honor:hover .honor__inner,
  .page-about .honor:focus-within .honor__inner{
    transform: rotateY(180deg);
  }

  .page-about .honor__face{
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-about .honor__back{
    margin-top: 0;
    transform: rotateY(180deg);
  }
}

.page-about .about-partners__more{
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(243,238,228,.72);
  max-width: 46em;
}

.page-about .about-partners__more a{
  color: var(--gold-lift);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 1px;
}

.page-about .about-partners__more a:hover,
.page-about .about-partners__more a:focus-visible{
  color: var(--paper);
  border-bottom-color: var(--gold);
  outline: none;
}

/* ---------- 06 理由 ---------- */
.page-about .about-why{
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(200,162,74,.12), transparent 60%),
    var(--ink);
}

.page-about .about-why__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
}

.page-about .about-why__item{
  background: rgba(11,27,43,.6);
  padding: clamp(16px, 2.4vw, 22px) clamp(14px, 2vw, 20px);
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "num text";
  gap: 4px 16px;
  border-left: 2px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.page-about .about-why__item:hover{
  border-left-color: var(--gold);
  background: rgba(18,42,68,.72);
}

.page-about .about-why__num{
  grid-area: num;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
  padding-top: 4px;
}

.page-about .about-why__title{
  grid-area: title;
  margin: 0;
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-about .about-why__text{
  grid-area: text;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(243,238,228,.74);
  max-width: 46em;
}

.page-about .about-why__cta{
  margin-top: clamp(24px, 3.4vw, 36px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-why__cta .btn{
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
}

@media (prefers-reduced-motion: reduce){
  .page-about .about-fact,
  .page-about .about-index__link,
  .page-about .region,
  .page-about .region__note,
  .page-about .about-why__item,
  .page-about .honor__inner{
    transition: none;
  }
  .page-about .honor:hover .honor__inner,
  .page-about .honor:focus-within .honor__inner{
    transform: none;
  }
}
<<<PAGE_CSS_END>>>
<<<END>>>
  </section>
</main>