.page-about{
  --about-hair: 2px;
  --about-pad: 18px;
  padding-bottom: 56px;
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb{
  padding: 16px 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}
.page-about .breadcrumb ol{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}
.page-about .breadcrumb li + li::before{
  content: "/";
  margin-right: 6px;
  color: var(--line);
}
.page-about .breadcrumb a{
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible{
  color: var(--neon);
  border-bottom-color: var(--neon);
}
.page-about .breadcrumb [aria-current="page"]{
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero{
  display: grid;
  gap: 26px;
  align-items: start;
  padding-top: 12px;
  padding-bottom: 44px;
}
.page-about .about-hero__main{
  display: grid;
  gap: 16px;
  min-width: 0;
}
.page-about .about-hero .eyebrow{
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  margin: 0;
}
.page-about .about-hero__title{
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.14;
  font-size: clamp(30px, 6vw, 50px);
  color: var(--paper);
  max-width: 15em;
}
.page-about .about-hero__lead{
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
  opacity: .86;
  max-width: 34em;
}

/* 关键数字条 */
.page-about .about-score{
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 6px;
  border-top: var(--about-hair) solid var(--line);
  border-bottom: var(--about-hair) solid var(--line);
}
.page-about .about-score__cell{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px;
  border-bottom: 1px dashed var(--line);
}
.page-about .about-score__cell:last-child{ border-bottom: 0; }
.page-about .about-score__k{
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-about .about-score__v{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: var(--amber);
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
.page-about .about-score__v i{
  font-style: normal;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .02em;
}

/* 章节索引 */
.page-about .about-index{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 4px;
}
.page-about .about-index a{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  font-size: 13px;
  text-decoration: none;
  color: var(--paper);
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.page-about .about-index a .num{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--neon);
}
.page-about .about-index a:hover,
.page-about .about-index a:focus-visible{
  border-color: var(--neon);
  background: #0E2A22;
  transform: translateY(-1px);
}

/* 首屏图 */
.page-about .about-hero__figure{
  margin: 0;
  border: var(--about-hair) solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}
.page-about .about-hero__figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.82) brightness(.86);
}
.page-about .about-hero__figure figcaption{
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec{
  display: grid;
  gap: 18px;
  padding-top: 34px;
  padding-bottom: 34px;
  border-top: var(--about-hair) solid var(--line);
}
.page-about .about-sec__side{
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.page-about .about-sec__no{
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
  letter-spacing: .06em;
}
.page-about .about-sec__kicker{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-about .about-sec__body{
  min-width: 0;
  display: grid;
  gap: 16px;
}
.page-about .about-sec__title{
  margin: 0;
  font-size: clamp(23px, 4vw, 33px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-about .about-lead{
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mint);
  max-width: 36em;
}
.page-about .about-prose p{
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
  opacity: .88;
  max-width: 36em;
}
.page-about .about-prose p:last-child{ margin-bottom: 0; }
.page-about .about-footnote{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  border-left: 3px solid var(--line);
  padding-left: 14px;
  max-width: 40em;
}

/* 直营要点 */
.page-about .about-points{
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 4px 0 0;
  padding: 0;
}
.page-about .about-points li{
  padding: 14px 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--amber);
  transition: border-left-color var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}
.page-about .about-points li:hover{
  border-left-color: var(--neon);
  transform: translateX(2px);
}
.page-about .about-points h3{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}
.page-about .about-points p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 服务范围 ---------- */
.page-about .scope-list{
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
}
.page-about .scope-card{
  display: grid;
  gap: 10px;
  padding: var(--about-pad);
  background: var(--ink-2);
  border: var(--about-hair) solid var(--line);
  border-left: 6px solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: border-left-color var(--t-mid) var(--ease), transform var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}
.page-about .scope-card:hover{
  border-left-color: var(--neon);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-neon);
}
.page-about .scope-card__who{
  display: grid;
  gap: 8px;
  align-content: start;
}
.page-about .scope-card__tag{
  display: inline-block;
  align-self: start;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink);
  background: var(--mint);
}
.page-about .scope-card__who h3{
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}
.page-about .scope-card__what p{
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper);
  opacity: .86;
}
.page-about .scope-card__scene{
  margin: 0 !important;
  font-size: 13.5px !important;
  line-height: 1.7 !important;
  color: var(--muted) !important;
  opacity: 1 !important;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

/* ---------- 时间线 ---------- */
.page-about .timeline{
  list-style: none;
  margin: 6px 0 0;
  padding: 0 0 0 22px;
  border-left: var(--about-hair) solid var(--line);
}
.page-about .timeline__item{
  position: relative;
  padding: 0 0 26px;
}
.page-about .timeline__item:last-child{ padding-bottom: 0; }
.page-about .timeline__item::before{
  content: "";
  position: absolute;
  left: -29px;
  top: 5px;
  width: 10px;
  height: 10px;
  background: var(--ink);
  border: 2px solid var(--neon);
  transform: rotate(45deg);
}
.page-about .timeline__item--now::before{
  border-color: var(--amber);
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 181, 71, .16);
}
.page-about .timeline__year{
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--neon);
  margin-bottom: 4px;
}
.page-about .timeline__item--now .timeline__year{ color: var(--amber); }
.page-about .timeline__head{
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}
.page-about .timeline__note{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 34em;
  transition: color var(--t-mid) var(--ease);
}
.page-about .timeline__item:hover .timeline__note{ color: var(--paper); }

/* ---------- 生产能力 ---------- */
.page-about .capacity{
  display: grid;
  gap: 22px;
  align-items: start;
}
.page-about .capacity__text{
  display: grid;
  gap: 16px;
  min-width: 0;
}
.page-about .capacity__text > p{
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--paper);
  opacity: .86;
  max-width: 36em;
}
.page-about .capacity__stats{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
}
.page-about .capacity__stat{
  padding: 12px 12px 14px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line);
  transition: border-top-color var(--t-mid) var(--ease);
}
.page-about .capacity__stat:hover{ border-top-color: var(--amber); }
.page-about .capacity__stat dt{
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
  margin-bottom: 8px;
}
.page-about .capacity__stat dd{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.page-about .capacity__stat dd i{
  font-style: normal;
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
}
.page-about .capacity__figure{
  margin: 0;
  border: var(--about-hair) solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}
.page-about .capacity__figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.8) brightness(.85);
}
.page-about .capacity__figure figcaption{
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 流程 ---------- */
.page-about .process{
  display: grid;
  gap: 22px;
  align-items: start;
}
.page-about .process__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-about .process__step{
  position: relative;
  padding: 14px 16px 16px 54px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}
.page-about .process__step:hover{
  border-color: var(--neon);
  background: #0E2A22;
}
.page-about .process__no{
  position: absolute;
  left: 14px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: var(--neon);
  padding: 2px 6px;
}
.page-about .process__step h3{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}
.page-about .process__step p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .process__figure{
  margin: 0;
  border: var(--about-hair) solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-amber);
}
.page-about .process__figure img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(.78) brightness(.86);
}
.page-about .process__figure figcaption{
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 合作与资质 ---------- */
.page-about .partner-list{
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}
.page-about .partner-card{
  padding: 16px 16px 18px;
  background: var(--ink-2);
  border: var(--about-hair) solid var(--line);
  box-shadow: var(--shadow-hard);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}
.page-about .partner-card:hover{
  transform: translate(-2px, -2px);
  border-color: var(--neon);
}
.page-about .partner-card__v{
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  margin-bottom: 10px;
}
.page-about .partner-card__v i{
  font-style: normal;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--mint);
  margin-left: 2px;
}
.page-about .partner-card h3{
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}
.page-about .partner-card p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 咨询入口 ---------- */
.page-about .about-cta{
  display: grid;
  gap: 22px;
  margin-top: 12px;
  padding-top: 28px;
  padding-bottom: 30px;
  background:
    linear-gradient(135deg, rgba(55, 242, 196, .1), rgba(255, 181, 71, .06) 62%, transparent 78%),
    var(--ink-2);
  border: var(--about-hair) solid var(--neon);
  box-shadow: var(--shadow-neon);
}
.page-about .about-cta__body{
  display: grid;
  gap: 12px;
  min-width: 0;
}
.page-about .about-cta .eyebrow{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--mint);
}
.page-about .about-cta__title{
  margin: 0;
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  line-height: 1.26;
  color: var(--paper);
}
.page-about .about-cta__lead{
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--paper);
  opacity: .86;
  max-width: 34em;
}
.page-about .about-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}
.page-about .about-btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  border: var(--about-hair) solid var(--neon);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-about .about-btn--solid{
  background: var(--neon);
  color: var(--ink);
  box-shadow: var(--shadow-neon);
}
.page-about .about-btn--solid:hover,
.page-about .about-btn--solid:focus-visible{
  background: var(--glare);
  transform: translate(-2px, -2px);
}
.page-about .about-btn--ghost{
  background: transparent;
  color: var(--paper);
  border-color: var(--line);
}
.page-about .about-btn--ghost:hover,
.page-about .about-btn--ghost:focus-visible{
  border-color: var(--amber);
  color: var(--amber);
  transform: translate(-2px, -2px);
}
.page-about .about-cta__side{
  min-width: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-about .about-contact{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-about .about-contact li{
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  background: var(--ink);
}
.page-about .about-contact__k{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}
.page-about .about-contact__v{
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}
.page-about .about-contact__note{
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .about-contact__note a{
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--t-fast) var(--ease);
}
.page-about .about-contact__note a:hover,
.page-about .about-contact__note a:focus-visible{
  border-bottom-color: var(--neon);
}

/* ---------- 焦点可见性 ---------- */
.page-about a:focus-visible{
  outline: 2px solid var(--glare);
  outline-offset: 3px;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 380px){
  .page-about .about-index{ grid-template-columns: 1fr; }
  .page-about .capacity__stats{ grid-template-columns: 1fr; }
  .page-about .process__step{ padding-left: 16px; padding-top: 44px; }
  .page-about .process__no{ top: 12px; }
}

/* ---------- 中等屏 ---------- */
@media (min-width: 560px){
  .page-about .about-score{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .about-score__cell{
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 14px 16px;
    border-bottom: 0;
    border-right: 1px dashed var(--line);
  }
  .page-about .about-score__cell:last-child{ border-right: 0; }
  .page-about .about-score__v{ font-size: 30px; }
  .page-about .about-index{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .scope-card{
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 18px;
  }
  .page-about .partner-list{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .about-cta{ padding-left: 26px; padding-right: 26px; }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px){
  .page-about .about-hero{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 40px;
  }
  .page-about .about-sec{
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 34px;
    padding-top: 46px;
    padding-bottom: 46px;
  }
  .page-about .about-sec__side{
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .page-about .about-sec__no{ font-size: 34px; }
  .page-about .capacity,
  .page-about .process{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 28px;
  }
  .page-about .about-cta{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 32px;
    padding: 34px 34px 36px;
    margin-top: 20px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about *{
    transition: none !important;
    transform: none !important;
  }
}