.page-about{
  --about-gold-soft: rgba(245,183,49,.14);
  --about-line-glow: rgba(245,183,49,.35);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}
.page-about .container{
  width: min(100% - 40px, 1100px);
  margin-inline: auto;
}
.page-about section[id]{
  scroll-margin-top: 88px;
}
.page-about .breadcrumbs{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}
.page-about .breadcrumbs a{
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible{
  color: var(--color-gold);
}
.page-about .breadcrumbs span[aria-current="page"]{
  color: var(--color-gold);
}
.page-about .breadcrumbs__sep{
  color: var(--color-line);
}
.page-about .panel-kicker{
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-left: 2px solid rgba(245,183,49,.6);
  padding-left: 14px;
  line-height: 1.4;
}
.page-about .about-hero{
  position: relative;
  padding: 56px 0 44px;
  background:
    radial-gradient(circle at 82% 8%, rgba(21,48,90,.95) 0%, rgba(11,29,58,0) 44%),
    linear-gradient(180deg, var(--color-card-deep) 0%, var(--color-bg) 100%);
  border-bottom: 1px solid var(--color-line);
}
.page-about .about-hero::after{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, transparent 0 42px, rgba(245,183,49,.05) 42px 43px);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
}
.page-about .about-hero__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.page-about .about-hero__content{
  position: relative;
  z-index: 1;
}
.page-about .about-hero__content h1{
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(34px, 5.2vw, 52px);
  line-height: 1.16;
  letter-spacing: -.01em;
  margin: 14px 0 18px;
  max-width: 720px;
}
.page-about .about-hero__lead{
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-text);
  max-width: 680px;
  margin: 0 0 14px;
}
.page-about .about-hero__content > p:not(.about-hero__lead){
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: 24px;
}
.page-about .about-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-index{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.page-about .about-index a{
  text-decoration: none;
  padding: 10px 14px;
  border: 1px solid var(--color-line);
  background: rgba(17,34,64,.55);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.page-about .about-index a::before{
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  background: var(--color-gold);
  vertical-align: 2px;
}
.page-about .about-index a:hover,
.page-about .about-index a:focus-visible{
  border-color: var(--color-gold);
  background: var(--color-card);
}
.page-about .about-hero__stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-line);
  background: var(--color-line);
  margin: 0;
}
.page-about .about-hero__stat{
  background: var(--color-card);
  padding: 22px 20px;
  margin: 0;
}
.page-about .about-hero__stat dt{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
}
.page-about .about-hero__stat dd{
  margin: 10px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.page-about .about-story{
  padding: 64px 0 28px;
  border-bottom: 1px solid var(--color-line);
}
.page-about .about-story__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
.page-about .about-story__content h2,
.page-about .panel-header h2,
.page-about .about-trust__heading{
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.2;
  margin: 10px 0 20px;
}
.page-about .about-story__content p,
.page-about .panel-header > p{
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  max-width: 680px;
}
.page-about .about-story__quote{
  border-left: 3px solid var(--color-gold);
  padding: 6px 0 6px 18px;
  margin: 24px 0;
  background: linear-gradient(90deg, rgba(245,183,49,.08), transparent 80%);
}
.page-about .about-story__quote p{
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text);
  font-weight: 500;
}
.page-about .about-story__media{
  margin: 0;
  border: 1px solid var(--color-line);
  background: var(--color-card);
  position: relative;
}
.page-about .about-story__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-story__media::after{
  content: "2018 — 至今";
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 8px 12px;
  background: rgba(11,29,58,.82);
  border: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
}
.page-about .about-milestones{
  padding: 64px 0 28px;
  border-bottom: 1px solid var(--color-line);
}
.page-about .about-milestones .panel-header{
  margin-bottom: 4px;
}
.page-about .about-timeline{
  position: relative;
  margin-top: 36px;
  padding-left: 28px;
}
.page-about .about-timeline::before{
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-gold) 0%, var(--color-line) 75%);
}
.page-about .about-timeline__item{
  position: relative;
  padding-bottom: 24px;
}
.page-about .about-timeline__item:last-child{
  padding-bottom: 0;
}
.page-about .about-timeline__node{
  position: absolute;
  left: -24px;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 0 5px var(--about-gold-soft);
  border: 2px solid var(--color-bg);
}
.page-about .about-timeline__content{
  background: var(--color-card);
  border: 1px solid var(--color-line);
  padding: 20px 20px 16px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.page-about .about-timeline__item:hover .about-timeline__content{
  border-color: var(--color-gold);
  transform: translateY(-2px);
}
.page-about .about-timeline__year{
  display: inline-flex;
  padding: 4px 10px;
  margin-bottom: 12px;
  background: linear-gradient(135deg, rgba(245,183,49,.2) 0%, rgba(255,215,94,.1) 100%);
  border-left: 2px solid var(--color-gold);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-gold);
  font-weight: 600;
}
.page-about .about-timeline__content h3{
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
}
.page-about .about-timeline__content p{
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0;
}
.page-about .about-timeline__details{
  margin-top: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 4px;
}
.page-about .about-timeline__details summary{
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-gold);
}
.page-about .about-timeline__details summary::-webkit-details-marker{
  display: none;
}
.page-about .about-timeline__details summary::before{
  content: "＋";
  font-family: var(--font-mono);
}
.page-about .about-timeline__details[open] summary::before{
  content: "－";
}
.page-about .about-timeline__details p{
  margin-top: 4px;
  padding-top: 4px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-left: 2px solid var(--about-line-glow);
  padding-left: 12px;
}
.page-about .about-expertise{
  padding: 64px 0 28px;
  border-bottom: 1px solid var(--color-line);
}
.page-about .about-team-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 32px 0;
}
.page-about .about-role-card{
  position: relative;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  padding: 28px 22px 22px;
  overflow: hidden;
}
.page-about .about-role-card__index{
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 32px;
  color: rgba(245,183,49,.14);
  line-height: 1;
}
.page-about .about-role-card h3{
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 6px;
}
.page-about .about-role-card__count{
  font-family: var(--font-heading);
  font-size: clamp(40px, 5vw, 52px);
  font-weight: 700;
  line-height: 1;
  margin: 14px 0 10px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-about .about-role-card__count span{
  font-family: var(--font-body);
  font-size: 18px;
  margin-left: 4px;
  background: none;
  -webkit-background-clip: initial;
  background-clip: initial;
  color: var(--color-text-secondary);
}
.page-about .about-role-card p{
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0;
}
.page-about .about-expertise__media{
  margin: 0 0 28px;
  border: 1px solid var(--color-line);
  background: var(--color-card);
}
.page-about .about-expertise__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-certifications h3{
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 18px;
}
.page-about .about-certifications__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-cert-item{
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  padding: 18px;
}
.page-about .about-cert-item__icon{
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
}
.page-about .about-cert-item__name{
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.page-about .about-cert-item p{
  margin: 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.page-about .about-ecosystem{
  padding: 64px 0 28px;
  border-bottom: 1px solid var(--color-line);
}
.page-about .about-ecosystem__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
  align-items: start;
}
.page-about .about-radial{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--color-line);
  background: var(--color-card);
}
.page-about .about-radial__rings,
.page-about .about-radial__lines{
  display: none;
}
.page-about .about-radial__center{
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px 10px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
  color: var(--color-bg);
  text-align: center;
}
.page-about .about-radial__brand{
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
}
.page-about .about-radial__sub{
  font-size: 13px;
  font-weight: 500;
  margin-top: 6px;
  opacity: .82;
}
.page-about .about-radial__node{
  position: relative;
  padding: 12px 10px;
  border: 1px solid var(--color-line);
  background: rgba(11,29,58,.6);
  text-align: center;
}
.page-about .about-radial__node-label{
  display: block;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}
.page-about .about-radial__tip{
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--color-text-secondary);
}
.page-about .about-radial__caption{
  grid-column: 1 / -1;
  margin: 0;
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.page-about .about-ecosystem__notes h3{
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 18px;
}
.page-about .about-ecosystem__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.page-about .about-ecosystem__list li{
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 16px;
  background: var(--color-card);
}
.page-about .about-ecosystem__dot{
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 6px;
  background: var(--color-gold);
  transform: rotate(45deg);
}
.page-about .about-ecosystem__list strong{
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.page-about .about-ecosystem__list p{
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}
.page-about .about-ecosystem__media{
  margin: 36px 0 0;
  border: 1px solid var(--color-line);
  background: var(--color-card);
}
.page-about .about-ecosystem__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-ecosystem__action{
  margin-top: 24px;
  padding: 18px 20px;
  border-left: 3px solid var(--color-gold);
  background: var(--color-card);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.page-about .about-ecosystem__action p{
  margin: 0;
  font-size: 15px;
  color: var(--color-text);
}
.page-about .about-trust{
  padding: 64px 0 40px;
}
.page-about .about-trust__panel{
  position: relative;
  padding: 44px 28px;
  background:
    radial-gradient(circle at 12% 20%, rgba(245,183,49,.16) 0%, rgba(11,29,58,0) 50%),
    linear-gradient(135deg, var(--color-card) 0%, var(--color-card-deep) 100%);
  border: 1px solid var(--color-line);
  overflow: hidden;
}
.page-about .about-trust__panel::after{
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(245,183,49,.3);
  transform: rotate(45deg);
  border-radius: 50%;
}
.page-about .about-trust__heading{
  margin: 0 0 14px;
}
.page-about .about-trust__statement{
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-gold);
  margin: 0 0 12px;
  max-width: 760px;
}
.page-about .about-trust__desc{
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin: 0 0 24px;
  max-width: 760px;
}
.page-about .about-trust__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
@media (min-width: 640px){
  .page-about .about-ecosystem__layout{
    grid-template-columns: minmax(0, 1fr) minmax(300px, 1fr);
    gap: 28px;
  }
  .page-about .about-element__layout{
    display: grid;
  }
}
@media (min-width: 900px){
  .page-about .about-hero{
    padding: 72px 0 56px;
  }
  .page-about .about-hero__layout{
    grid-template-columns: minmax(0, 1fr) minmax(340px, .8fr);
    gap: 72px;
    align-items: center;
  }
  .page-about .about-hero__stats{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-story{
    padding: 92px 0 48px;
  }
  .page-about .about-story__layout{
    grid-template-columns: minmax(0, 1.05fr) minmax(280px, .9fr);
    gap: 56px;
  }
  .page-about .about-milestones,
  .page-about .about-expertise,
  .page-about .about-ecosystem{
    padding: 92px 0 48px;
  }
  .page-about .about-timeline{
    max-width: 780px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 32px;
  }
  .page-about .about-timeline__item{
    padding-bottom: 32px;
  }
  .page-about .about-timeline__node{
    left: -30px;
    width: 14px;
    height: 14px;
  }
  .page-about .about-timeline__content{
    padding: 28px 28px 22px;
  }
  .page-about .about-timeline__content h3{
    font-size: 24px;
  }
  .page-about .about-timeline__content > p{
    font-size: 16px;
  }
  .page-about .about-team-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
  .page-about .about-certifications__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-ecosystem__layout{
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
    gap: 56px;
    align-items: start;
  }
  .page-about .about-radial{
    position: relative;
    display: block;
    width: 100%;
    max-width: 620px;
    height: 480px;
    padding: 0;
    border: 0;
    background: transparent;
  }
  .page-about .about-radial__rings{
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }
  .page-about .about-radial__lines{
    display: block;
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, var(--color-line) 1px, transparent 1px) 0 0 / 240px 240px,
      linear-gradient(0deg, var(--color-line) 1px, transparent 1px) 0 0 / 240px 240px;
    opacity: .35;
  }
  .page-about .about-radial__center{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 160px;
    height: 160px;
    border-radius: 50%;
    grid-column: auto;
    padding: 24px 10px;
    z-index: 2;
  }
  .page-about .about-radial__node{
    position: absolute;
    width: 150px;
    min-height: 60px;
    margin: 0;
    border: 1px solid var(--color-line);
    background: var(--color-card);
    z-index: 1;
  }
  .page-about .about-radial__node--1{
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
  }
  .page-about .about-radial__node--2{
    top: calc(50% - 180px);
    right: 0;
  }
  .page-about .about-radial__node--3{
    bottom: calc(50% - 180px);
    right: 0;
  }
  .page-about .about-radial__node--4{
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
  }
  .page-about .about-radial__node--5{
    bottom: calc(50% - 180px);
    left: 0;
  }
  .page-about .about-radial__node--6{
    top: calc(50% - 180px);
    left: 0;
  }
  .page-about .about-radial__tip{
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    max-width: 220px;
    padding: 8px 12px;
    border: 1px solid var(--color-line);
    background: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
    z-index: 3;
  }
  .page-about .about-radial__node:hover .about-radial__tip,
  .page-about .about-radial__node:focus-within .about-radial__tip{
    opacity: 1;
    visibility: visible;
  }
  .page-about .about-radial__node:hover .about-radial__node-label{
    color: var(--color-gold);
  }
  .page-about .about-radial__caption{
    position: absolute;
    bottom: -22px;
    left: 0;
    grid-column: auto;
  }
  .page-about .about-ecosystem__media{
    margin-top: 48px;
  }
  .page-about .about-trust{
    padding: 92px 0 56px;
  }
  .page-about .about-trust__panel{
    padding: 56px 48px;
  }
}