.page-about{
  --about-accent: #FF7A00;
  --about-deep-bg: #0A1F17;
  --about-light-bg: #F4F7F3;
  --about-card-bg: #FFFFFF;
  background: var(--about-light-bg);
  color: #1A1A1A;
  line-height: 1.7;
}

/* ---------- 品牌概览 hero ---------- */
.page-about .about-hero{
  background: #0B3D2E;
  color: #E8F0EB;
  padding: 2rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.page-about .about-hero::before{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background: #0A1F17;
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}
.page-about .about-hero::after{
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #FF7A00 0%, #FFC79A 42%, rgba(255,122,0,0) 100%);
  z-index: 1;
}
.page-about .about-hero .container-wide{
  position: relative;
  z-index: 1;
}
.page-about .breadcrumb{
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: #6A8A7D;
  margin-bottom: 2.5rem;
}
.page-about .breadcrumb a{
  color: #6A8A7D;
  text-decoration: none;
  transition: color .3s ease-out;
}
.page-about .breadcrumb a:hover{
  color: #FF7A00;
}
.page-about .breadcrumb-sep{
  opacity: .6;
}
.page-about .breadcrumb-current{
  color: #E8F0EB;
}
.page-about .hero-layout{
  display: grid;
  gap: 2rem;
}
.page-about .hero-copy .section-label{
  color: #FFC79A;
}
.page-about .hero-copy h1{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.15;
  margin: .625rem 0 1rem;
  letter-spacing: .02em;
}
.page-about .hero-lead{
  font-size: 1rem;
  color: rgba(232,240,235,.88);
  max-width: 560px;
  margin-bottom: 1rem;
}
.page-about .hero-note{
  font-size: .875rem;
  color: #6A8A7D;
  max-width: 520px;
  margin-bottom: 2rem;
}
.page-about .keyword{
  color: #FFC79A;
  font-weight: 600;
}
.page-about .hero-stats{
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.page-about .stat-block{
  border-left: 3px solid #FF7A00;
  padding-left: .875rem;
}
.page-about .stat-num{
  display: block;
  font-family: "Roboto Mono", "Courier New", monospace;
  font-size: 1.875rem;
  font-weight: 700;
  color: #E8F0EB;
  line-height: 1.2;
  letter-spacing: -.02em;
}
.page-about .stat-label{
  font-size: .8125rem;
  color: #6A8A7D;
  margin-top: .25rem;
}
.page-about .hero-visual{
  position: relative;
}
.page-about .hero-frame{
  overflow: hidden;
  border-radius: 4px 32px 4px 32px;
  box-shadow: 0 8px 32px rgba(10,31,23,.35);
  background: #0A1F17;
  margin: 0;
}
.page-about .hero-frame img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .hero-frame figcaption{
  padding: .5rem 1rem;
  font-size: .8125rem;
  color: #6A8A7D;
  background: rgba(244,247,243,.95);
}

/* ---------- 发展历程 timeline ---------- */
.page-about .about-timeline-section{
  background: #F4F7F3;
  padding: 4rem 0;
}
.page-about .section-heading{
  max-width: 720px;
  margin-bottom: 2.5rem;
}
.page-about .section-heading h2{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  margin: .5rem 0 .75rem;
  color: #1A1A1A;
}
.page-about .section-heading > p:not(.section-label){
  color: #6A8A7D;
  font-size: .9375rem;
  line-height: 1.8;
}
.page-about .timeline-scroll{
  position: relative;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding-bottom: .75rem;
  margin-bottom: 3rem;
  scrollbar-width: thin;
  scrollbar-color: #FF7A00 #D0DAD3;
}
.page-about .timeline-scroll::-webkit-scrollbar{
  height: 6px;
}
.page-about .timeline-scroll::-webkit-scrollbar-track{
  background: #D0DAD3;
  border-radius: 999px;
}
.page-about .timeline-scroll::-webkit-scrollbar-thumb{
  background: #FF7A00;
  border-radius: 999px;
}
.page-about .timeline-scroll::before{
  content: "";
  position: absolute;
  top: 26px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #FF7A00 0%, #0B3D2E 100%);
  z-index: 0;
}
.page-about .timeline-track{
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: max-content;
}
.page-about .timeline-item{
  position: relative;
  scroll-snap-align: start;
  flex: 0 0 280px;
  background: #FFFFFF;
  border-radius: 8px 24px 8px 24px;
  padding: 2.5rem 1.5rem 1.5rem;
  border-top: 3px solid #0B3D2E;
  box-shadow: 0 2px 8px rgba(10,31,23,.08);
  transition: transform .3s ease-out, box-shadow .3s ease-out, border-color .3s ease-out;
}
.page-about .timeline-item:hover{
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(10,31,23,.15);
  border-top-color: #FF7A00;
}
.page-about .timeline-item::before{
  content: "";
  position: absolute;
  top: 20px;
  left: 1.5rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #FF7A00;
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 2px #FF7A00;
}
.page-about .timeline-year{
  display: block;
  font-family: "Roboto Mono", "Courier New", monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: #FF7A00;
  margin-bottom: .375rem;
  letter-spacing: -.02em;
}
.page-about .timeline-item h3{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: #1A1A1A;
  margin: .375rem 0 .5rem;
}
.page-about .timeline-item p{
  font-size: .875rem;
  color: #6A8A7D;
  line-height: 1.7;
  margin: 0;
}
.page-about .timeline-visual{
  display: grid;
  gap: 1.5rem;
  align-items: center;
}
.page-about .timeline-frame{
  overflow: hidden;
  border-radius: 32px 4px 32px 4px;
  box-shadow: 0 8px 32px rgba(10,31,23,.12);
  margin: 0;
  background: #0B3D2E;
}
.page-about .timeline-frame img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .timeline-note{
  background: #0B3D2E;
  color: #E8F0EB;
  padding: 2rem;
  border-radius: 20px 4px 20px 4px;
  position: relative;
  overflow: hidden;
}
.page-about .timeline-note::after{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: repeating-linear-gradient(45deg, transparent 0 8px, rgba(255,122,0,.25) 8px 10px);
  opacity: .5;
}
.page-about .note-label{
  font-family: "Roboto Mono", "Courier New", monospace;
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #FFC79A;
  margin-bottom: .75rem;
}
.page-about .timeline-note p:last-child{
  font-size: .9375rem;
  color: rgba(232,240,235,.85);
  line-height: 1.8;
  margin: 0;
}

/* ---------- 团队与组织 ---------- */
.page-about .about-team-section{
  background: #0A1F17;
  padding: 4rem 0;
}
.page-about .about-team-section .section-heading h2{
  color: #E8F0EB;
}
.page-about .about-team-section .section-heading > p:not(.section-label){
  color: #6A8A7D;
}
.page-about .team-grid{
  display: grid;
  gap: 1.25rem;
}
.page-about .team-card{
  background: rgba(232,240,235,.04);
  border: 1px solid #1F4637;
  border-radius: 20px 4px 20px 4px;
  padding: 2rem;
  transition: transform .3s ease-out, border-color .3s ease-out, background-color .3s ease-out;
}
.page-about .team-card:hover{
  transform: translateY(-6px);
  border-color: #FF7A00;
  background: rgba(255,122,0,.06);
}
.page-about .team-code{
  display: inline-block;
  font-family: "Roboto Mono", "Courier New", monospace;
  font-size: .8125rem;
  color: #FF7A00;
  letter-spacing: .1em;
  margin-bottom: .75rem;
}
.page-about .team-card h3{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: #E8F0EB;
  margin: 0 0 .75rem;
}
.page-about .team-card p{
  font-size: .9375rem;
  color: #6A8A7D;
  line-height: 1.7;
  margin: 0 0 1.25rem;
}
.page-about .team-tags{
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  opacity: .75;
  transform: translateY(2px);
  transition: opacity .3s ease-out, transform .3s ease-out;
}
.page-about .team-card:hover .team-tags{
  opacity: 1;
  transform: translateY(0);
}
.page-about .team-tags span{
  font-size: .75rem;
  padding: .25rem .75rem;
  border-radius: 999px;
  background: rgba(255,122,0,.12);
  color: #FFC79A;
  border: 1px solid rgba(255,122,0,.3);
}
.page-about .team-note{
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  border-left: 4px solid #FF7A00;
  background: rgba(255,122,0,.05);
  border-radius: 0 16px 16px 0;
}
.page-about .team-note p{
  font-size: .9375rem;
  color: rgba(232,240,235,.8);
  line-height: 1.8;
  margin: 0;
}

/* ---------- 资质与荣誉 ---------- */
.page-about .about-honors-section{
  background: #F4F7F3;
  padding: 4rem 0;
  position: relative;
}
.page-about .about-honors-section .section-heading{
  max-width: 680px;
}
.page-about .honor-list{
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.page-about .honor-item{
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: #FFFFFF;
  padding: 2rem;
  border-radius: 24px 4px 24px 4px;
  border-left: 4px solid #FF7A00;
  box-shadow: 0 2px 8px rgba(10,31,23,.08);
  transition: box-shadow .3s ease-out, transform .3s ease-out;
}
.page-about .honor-item:hover{
  box-shadow: 0 8px 32px rgba(10,31,23,.12);
  transform: translateY(-3px);
}
.page-about .honor-badge{
  flex: 0 0 auto;
}
.page-about .honor-badge svg{
  width: 72px;
  height: 72px;
  display: block;
}
.page-about .honor-copy h3{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1A1A1A;
  margin: 0 0 .5rem;
}
.page-about .honor-copy > p{
  font-size: .9375rem;
  color: #6A8A7D;
  line-height: 1.7;
  margin: 0;
}
.page-about .honor-trigger{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: none;
  border: none;
  color: #FF7A00;
  font-size: .875rem;
  font-weight: 700;
  padding: 0;
  margin-top: .875rem;
  cursor: pointer;
  transition: color .3s ease-out;
}
.page-about .honor-trigger:hover{
  color: #0B3D2E;
}
.page-about .honor-trigger[aria-expanded="true"] .trigger-arrow{
  transform: rotate(180deg);
}
.page-about .trigger-arrow{
  display: inline-block;
  transition: transform .3s ease-out;
}
.page-about .expand-pane[data-open="true"]{
  margin-top: .875rem;
  padding-top: .875rem;
  border-top: 1px solid #D0DAD3;
}
.page-about .expand-pane p{
  font-size: .875rem;
  color: #1A1A1A;
  line-height: 1.75;
  background: #F4F7F3;
  border-radius: 4px 16px 4px 16px;
  padding: 1rem 1.25rem;
  margin: 0;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners-section{
  background: #0B3D2E;
  padding: 4rem 0;
}
.page-about .about-partners-section .section-heading h2{
  color: #E8F0EB;
}
.page-about .about-partners-section .section-heading > p:not(.section-label){
  color: #6A8A7D;
}
.page-about .partner-layout{
  display: grid;
  gap: 2rem;
  align-items: center;
}
.page-about .partner-list{
  display: grid;
  gap: 1.25rem;
}
.page-about .partner-item{
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(232,240,235,.04);
  border: 1px solid #1F4637;
  border-radius: 2px 16px 2px 16px;
  padding: 1.5rem;
  transition: border-color .3s ease-out, background-color .3s ease-out, transform .3s ease-out;
}
.page-about .partner-item:hover{
  border-color: #FF7A00;
  background: rgba(255,122,0,.05);
  transform: translateX(6px);
}
.page-about .partner-dot{
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #FF7A00;
  margin-top: .5rem;
  box-shadow: 0 0 0 3px rgba(255,122,0,.2);
}
.page-about .partner-item h3{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: #E8F0EB;
  margin: 0 0 .375rem;
}
.page-about .partner-item p{
  font-size: .875rem;
  color: #6A8A7D;
  line-height: 1.7;
  margin: 0;
}
.page-about .partner-frame{
  overflow: hidden;
  border-radius: 24px 4px 24px 4px;
  box-shadow: 0 8px 32px rgba(10,31,23,.4);
  margin: 0;
  background: #0A1F17;
}
.page-about .partner-frame img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 底部引导 ---------- */
.page-about .about-cta{
  background: #F4F7F3;
  padding: 4rem 0;
}
.page-about .cta-panel{
  background: #0B3D2E;
  color: #E8F0EB;
  border-radius: 32px 8px 32px 8px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}
.page-about .cta-panel::before{
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255,122,0,.4) 0%, transparent 70%);
  pointer-events: none;
}
.page-about .cta-panel::after{
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #FF7A00 0%, rgba(255,122,0,.2) 100%);
}
.page-about .cta-copy{
  position: relative;
  z-index: 1;
}
.page-about .cta-copy .section-label{
  color: #FFC79A;
}
.page-about .cta-copy h2{
  font-family: "Noto Serif SC", Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  font-weight: 700;
  margin: .5rem 0 .75rem;
}
.page-about .cta-copy p{
  color: #6A8A7D;
  font-size: .9375rem;
  line-height: 1.7;
  max-width: 480px;
  margin: 0 0 .5rem;
}
.page-about .cta-contact-link{
  font-size: .875rem;
}
.page-about .cta-contact-link a{
  color: #FFC79A;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,199,154,.4);
  transition: color .3s ease-out, border-color .3s ease-out;
}
.page-about .cta-contact-link a:hover{
  color: #FF7A00;
  border-color: #FF7A00;
}
.page-about .cta-actions{
  display: flex;
  gap: .875rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ---------- 桌面端媒体查询 ---------- */
@media (min-width: 992px){
  .page-about .about-hero{
    padding: 3rem 0 5rem;
  }
  .page-about .hero-layout{
    grid-template-columns: 1.1fr .9fr;
    gap: 3rem;
    align-items: center;
  }
  .page-about .hero-copy h1{
    font-size: 4rem;
  }
  .page-about .hero-lead{
    font-size: 1.0625rem;
  }
  .page-about .hero-stats{
    grid-template-columns: repeat(4,1fr);
    gap: 1.5rem;
  }
  .page-about .hero-frame{
    margin-right: -1.5rem;
    border-radius: 4px 48px 4px 48px;
  }
  .page-about .about-timeline-section,
  .page-about .about-team-section,
  .page-about .about-honors-section,
  .page-about .about-partners-section{
    padding: 6rem 0;
  }
  .page-about .section-heading{
    margin-bottom: 3.5rem;
  }
  .page-about .section-heading h2{
    font-size: 2.5rem;
  }
  .page-about .timeline-item{
    flex-basis: 320px;
  }
  .page-about .timeline-visual{
    grid-template-columns: 1.2fr .8fr;
    gap: 2.5rem;
  }
  .page-about .team-grid{
    grid-template-columns: repeat(3,1fr);
    gap: 1.5rem;
  }
  .page-about .team-card{
    padding: 2.5rem;
  }
  .page-about .honor-item{
    flex-direction: row;
    align-items: flex-start;
    gap: 1.75rem;
    padding: 2.25rem;
  }
  .page-about .honor-badge svg{
    width: 84px;
    height: 84px;
  }
  .page-about .partner-layout{
    grid-template-columns: 1.05fr .95fr;
    gap: 3rem;
  }
  .page-about .cta-panel{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 3.5rem;
  }
  .page-about .cta-copy h2{
    font-size: 2.125rem;
  }
}
@media (min-width: 1200px){
  .page-about .hero-copy h1{
    font-size: 4.5rem;
  }
  .page-about .hero-note{
    margin-bottom: 2.5rem;
  }
  .page-about .timeline-frame img{
    max-height: 560px;
    object-fit: cover;
  }
  .page-about .partner-frame img{
    max-height: 460px;
    object-fit: cover;
  }
}