.page-about{
  --ab-line: rgba(201,209,204,.24);
  --ab-line-soft: rgba(201,209,204,.14);
  --ab-line-dark: rgba(16,23,19,.16);
  --ab-accent: var(--yellow);
  --ab-muted: rgba(201,209,204,.82);
  --ab-text: var(--cream);
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about p{
  margin: 0 0 16px;
  line-height: 1.85;
  font-size: 16px;
}

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

.page-about a{
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 32px) 0 30px;
  background: var(--ink);
  border-bottom: 1px solid var(--ab-line-soft);
}

.page-about .about-hero::before{
  content: "";
  position: absolute;
  z-index: 0;
  top: -42%;
  right: -22%;
  width: 64%;
  height: 180%;
  background: linear-gradient(205deg, var(--ink-2) 0%, var(--ink-3) 58%, rgba(11,31,23,0) 100%);
  transform: rotate(12deg);
}

.page-about .about-hero::after{
  content: "";
  position: absolute;
  z-index: 0;
  left: -12%;
  bottom: -16%;
  width: 52%;
  height: 34%;
  background: var(--yellow);
  opacity: .07;
  transform: skewX(-18deg);
}

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

.page-about .about-hero .breadcrumb__link,
.page-about .about-hero .breadcrumb__item{
  color: rgba(244,241,232,.66);
  font-size: 13px;
}

.page-about .about-hero .breadcrumb__list{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-about .about-hero .breadcrumb__sep{
  color: rgba(244,241,232,.34);
}

.page-about .about-hero__eyebrow{
  color: var(--yellow);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  margin: 0;
  text-transform: uppercase;
}

.page-about .about-hero__title{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 9.4vw, 82px);
  line-height: .98;
  letter-spacing: -.01em;
  margin: 14px 0 0;
  color: var(--cream);
}

.page-about .about-hero__mark{
  color: var(--yellow);
  position: relative;
  white-space: nowrap;
}

.page-about .about-hero__lede{
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(244,241,232,.84);
}

.page-about .about-hero__meta{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  list-style: none;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--ab-line-soft);
  font-size: 12px;
  color: var(--grey);
  letter-spacing: .04em;
}

.page-about .about-hero__metaNum{
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--yellow);
  margin-right: 5px;
}

.page-about .about-jump{
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--ab-line-soft);
}

.page-about .about-jump__list{
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-jump__list::-webkit-scrollbar{
  display: none;
}

.page-about .about-jump__link{
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid var(--ab-line);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 13px;
  line-height: 1;
  color: var(--cream);
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}

.page-about .about-jump__link:hover,
.page-about .about-jump__link:focus-visible{
  border-color: var(--yellow);
  color: var(--yellow);
  background: rgba(245,197,66,.08);
}

.page-about .about-jump__num{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--yellow);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter{
  padding: 52px 0;
  background: var(--ink);
  color: var(--cream);
}

.page-about .about-chapter--cream{
  --ab-accent: var(--green);
  --ab-muted: rgba(16,23,19,.68);
  --ab-text: var(--near-black);
  background: var(--cream);
  color: var(--near-black);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-about .about-chapter--ink2{
  background: var(--ink-2);
  border-top: 1px solid var(--ab-line-soft);
}

.page-about .about-chapter__head{
  margin-bottom: 30px;
}

.page-about .about-chapter__num{
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(46px, 13vw, 96px);
  line-height: .8;
  letter-spacing: -.02em;
  color: var(--ab-accent);
}

.page-about .about-chapter__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 10px 0 0;
  color: inherit;
}

.page-about .about-chapter__note{
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ab-muted);
}

/* ---------- 非对称双栏 ---------- */
.page-about .about-split{
  display: grid;
  gap: 28px;
}

.page-about .about-split__text p{
  max-width: 38em;
  color: inherit;
}

.page-about .about-chapter--cream .about-split__text p{
  color: rgba(16,23,19,.86);
}

.page-about .about-split__media{
  margin: 0;
  border: 2px solid var(--ab-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
  transform: rotate(-.6deg);
}

.page-about .about-chapter--cream .about-split__media{
  border-color: rgba(16,23,19,.24);
  background: #E6E1D3;
}

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

.page-about .about-split__media .media-frame__caption{
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.7;
  font-family: var(--font-mono);
  color: var(--grey);
  border-top: 1px solid var(--ab-line);
  background: rgba(11,31,23,.5);
}

.page-about .about-chapter--cream .about-split__media .media-frame__caption{
  color: rgba(16,23,19,.62);
  border-top-color: rgba(16,23,19,.14);
  background: transparent;
}

.page-about .about-quote{
  margin: 26px 0 0;
  padding: 6px 0 6px 18px;
  border-left: 3px solid var(--yellow);
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.85;
  color: var(--cream);
}

/* ---------- 四项记录方式 ---------- */
.page-about .about-principles{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-principles__item{
  padding: 22px 0;
  border-top: 1px solid var(--ab-line-dark);
}

.page-about .about-principles__mark{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--near-black);
  background: var(--yellow-soft);
  padding: 3px 7px;
  margin-bottom: 10px;
}

.page-about .about-principles__title{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--near-black);
}

.page-about .about-principles__text{
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16,23,19,.76);
  max-width: 34em;
}

/* ---------- 团队分工 ---------- */
.page-about .about-roles{
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ab-line-soft);
}

.page-about .about-roles__item{
  background: var(--ink-2);
  padding: 20px 18px;
  border-left: 2px solid var(--yellow);
}

.page-about .about-roles__count{
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-roles__name{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  margin: 10px 0 6px;
  color: var(--cream);
}

.page-about .about-roles__text{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ab-muted);
}

/* ---------- 三档节奏 ---------- */
.page-about .about-shifts{
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-shifts__item{
  background: rgba(11,31,23,.55);
  border: 1px solid var(--ab-line);
  border-radius: var(--radius);
  padding: 18px;
}

.page-about .about-shifts__tag{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  padding: 4px 9px;
  margin-bottom: 12px;
  color: var(--near-black);
  background: var(--yellow);
}

.page-about .about-shifts__item--live .about-shifts__tag{
  background: var(--red);
  color: var(--cream);
}

.page-about .about-shifts__item--post .about-shifts__tag{
  background: var(--green);
  color: var(--cream);
}

.page-about .about-shifts__title{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--cream);
}

.page-about .about-shifts__text{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ab-muted);
}

/* ---------- 数据带 ---------- */
.page-about .about-band{
  background: var(--yellow);
  color: var(--near-black);
  padding: 40px 0;
}

.page-about .about-band__grid{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 24px 16px;
}

.page-about .about-band__item{
  border-top: 2px solid rgba(16,23,19,.28);
  padding-top: 12px;
}

.page-about .about-band__num{
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 5vw, 28px);
  line-height: 1.1;
  color: var(--near-black);
}

.page-about .about-band__label{
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(16,23,19,.72);
}

/* ---------- 里程碑 ---------- */
.page-about .about-milestones__media{
  margin: 0 0 30px;
  border: 2px solid rgba(16,23,19,.24);
  border-radius: var(--radius);
  overflow: hidden;
  background: #E6E1D3;
}

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

.page-about .about-milestones__media .media-frame__caption{
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: rgba(16,23,19,.62);
  border-top: 1px solid rgba(16,23,19,.14);
}

.page-about .about-milestones{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-milestones__item{
  position: relative;
  padding: 0 0 26px 24px;
  border-left: 1px solid rgba(16,23,19,.22);
}

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

.page-about .about-milestones__item::before{
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--yellow);
  border: 1px solid rgba(16,23,19,.6);
}

.page-about .about-milestones__stage{
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--green);
  margin-bottom: 8px;
}

.page-about .about-milestones__title{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  margin: 0 0 6px;
  color: var(--near-black);
}

.page-about .about-milestones__text{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(16,23,19,.74);
  max-width: 32em;
}

/* ---------- 覆盖与场景 ---------- */
.page-about .about-reach{
  display: grid;
  gap: 30px;
}

.page-about .about-reach__stat{
  border: 2px solid var(--ab-line);
  border-left: 4px solid var(--yellow);
  border-radius: var(--radius);
  padding: 22px 20px;
  background: rgba(18,51,40,.55);
}

.page-about .about-reach__big{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(64px, 16vw, 110px);
  line-height: .85;
  margin: 0;
  color: var(--yellow);
}

.page-about .about-reach__cap{
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
}

.page-about .about-reach__sub{
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ab-muted);
}

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

.page-about .about-reach__scene{
  padding: 18px 0 18px 18px;
  border-top: 1px solid var(--ab-line-soft);
  position: relative;
}

.page-about .about-reach__scene::before{
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  width: 6px;
  height: 6px;
  background: var(--yellow);
}

.page-about .about-reach__sceneTitle{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--cream);
}

.page-about .about-reach__sceneText{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ab-muted);
  max-width: 30em;
}

/* ---------- 选择理由 ---------- */
.page-about .about-why{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-why__item{
  padding: 20px 0;
  border-top: 1px solid var(--ab-line-dark);
}

.page-about .about-why__num{
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--green);
  margin-bottom: 8px;
}

.page-about .about-why__title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.35;
  margin: 0 0 8px;
  color: var(--near-black);
}

.page-about .about-why__text{
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16,23,19,.76);
  max-width: 36em;
}

.page-about .about-cta{
  margin-top: 32px;
  padding: 24px 20px;
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--radius);
  border-bottom: 4px solid var(--yellow);
}

.page-about .about-cta__text{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(244,241,232,.86);
  max-width: 40em;
}

.page-about .about-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-about .about-cta__ghost{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 2px solid var(--yellow);
  border-radius: var(--radius);
  color: var(--yellow);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color .2s ease, color .2s ease;
}

.page-about .about-cta__ghost:hover,
.page-about .about-cta__ghost:focus-visible{
  background: var(--yellow);
  color: var(--near-black);
}

.page-about .about-cta__links{
  margin: 18px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--grey);
}

.page-about .about-cta__links a{
  color: var(--grey);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-cta__links a:hover,
.page-about .about-cta__links a:focus-visible{
  color: var(--yellow);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px){
  .page-about .about-shifts{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
  .page-about .about-roles{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
  .page-about .about-band__grid{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }
  .page-about .about-cta{
    padding: 32px 30px;
  }
}

@media (min-width: 900px){
  .page-about .about-hero{
    padding: calc(var(--header-h) + 64px) 0 44px;
  }
  .page-about .about-chapter{
    padding: 88px 0;
  }
  .page-about .about-chapter__head{
    display: grid;
    grid-template-columns: 150px minmax(0,1fr);
    column-gap: 32px;
    align-items: start;
    margin-bottom: 44px;
  }
  .page-about .about-chapter__num{
    grid-row: 1 / span 2;
  }
  .page-about .about-chapter__title{
    margin-top: 0;
  }
  .page-about .about-split{
    grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr);
    column-gap: 48px;
    align-items: start;
  }
  .page-about .about-split--reverse{
    grid-template-columns: minmax(0,.95fr) minmax(0,1.05fr);
  }
  .page-about .about-split__media{
    margin-top: 4px;
  }
  .page-about .about-principles{
    grid-template-columns: repeat(2, minmax(0,1fr));
    column-gap: 48px;
  }
  .page-about .about-principles__item:nth-child(2){
    border-top-color: transparent;
  }
  .page-about .about-milestones{
    grid-template-columns: repeat(4, minmax(0,1fr));
    column-gap: 26px;
  }
  .page-about .about-milestones__item{
    padding: 26px 0 0 0;
    border-left: 0;
    border-top: 2px solid rgba(16,23,19,.22);
  }
  .page-about .about-milestones__item::before{
    left: 0;
    top: -6px;
  }
  .page-about .about-reach{
    grid-template-columns: minmax(0,.72fr) minmax(0,1.28fr);
    column-gap: 48px;
    align-items: start;
  }
  .page-about .about-band{
    padding: 52px 0;
  }
  .page-about .about-why{
    grid-template-columns: repeat(2, minmax(0,1fr));
    column-gap: 48px;
  }
  .page-about .about-why__item:nth-child(2){
    border-top-color: transparent;
  }
}

@media (min-width: 1180px){
  .page-about .about-band__grid{
    grid-template-columns: repeat(6, minmax(0,1fr));
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .about-split__media{
    transform: none;
  }
  .page-about .about-jump__link,
  .page-about .about-cta__ghost{
    transition: none;
  }
}