.page-about{
  --about-orange:#FF8C42;
  --about-blue:#4A9EFF;
  --about-deep:#0A1A2F;
  --about-surface:#10233A;
  --about-faint:#1C3045;
  --about-cream:#F2EFE8;
  --about-ash:#A7B7C8;
  --about-moss:#9AB87A;
  --about-terra:#D17A5A;
  --about-border:#27445C;
  --about-radius:14px;
  position:relative;
  background:linear-gradient(180deg,#0A1A2F 0%,#1C3045 100%);
  color:#F2EFE8;
  font-family:"JetBrains Mono","Noto Sans Mono CJK SC",monospace;
  line-height:1.7;
  overflow-x:hidden;
}
.page-about *{
  box-sizing:border-box;
}
.page-about a{
  color:var(--about-blue);
  text-decoration:none;
  transition:color .2s ease;
}
.page-about a:hover{
  color:var(--about-orange);
}
.page-about img{
  max-width:100%;
  height:auto;
  border-radius:10px;
  display:block;
}
.page-about .breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  padding:16px 20px 0;
  font-family:"JetBrains Mono",monospace;
  font-size:13px;
  color:var(--about-ash);
  max-width:1200px;
  margin:0 auto;
}
.page-about .breadcrumb a{
  color:var(--about-ash);
}
.page-about .breadcrumb a:hover{
  color:var(--about-orange);
}
.page-about .breadcrumb-sep{
  color:#526B84;
}
.page-about .about-hero{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding:40px 20px 48px;
  max-width:1200px;
  margin:0 auto;
  position:relative;
}
.page-about .about-hero::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:100%;
  height:100%;
  background:radial-gradient(ellipse at 70% 20%,rgba(74,158,255,.12),transparent 60%);
  pointer-events:none;
  z-index:0;
}
.page-about .about-hero-copy{
  position:relative;
  z-index:1;
}
.page-about .about-hero-kicker{
  display:inline-block;
  font-size:13px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--about-orange);
  border-left:3px solid var(--about-orange);
  padding-left:10px;
  margin-bottom:18px;
  font-weight:500;
}
.page-about .about-hero-title{
  font-family:"Noto Sans SC","PingFang SC",sans-serif;
  font-size:32px;
  line-height:1.25;
  font-weight:900;
  color:var(--about-cream);
  margin:0 0 18px;
  letter-spacing:-.01em;
}
.page-about .about-hero-lead{
  font-size:15px;
  color:var(--about-ash);
  max-width:560px;
  margin-bottom:24px;
}
.page-about .about-hero-lead strong{
  color:var(--about-cream);
  font-weight:600;
}
.page-about .about-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:24px;
}
.page-about .btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:8px;
  font-family:"Noto Sans SC","PingFang SC",sans-serif;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  position:relative;
  transition:all .2s ease;
}
.page-about .btn-primary{
  background:var(--about-orange);
  color:#0A1A2F;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 50%,calc(100% - 12px) 100%,0 100%);
}
.page-about .btn-primary:hover{
  background:#FFB072;
  color:#0A1A2F;
  transform:translateY(-1px);
}
.page-about .btn-ghost{
  background:transparent;
  border-color:#31618C;
  color:var(--about-blue);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 50%,calc(100% - 12px) 100%,0 100%);
}
.page-about .btn-ghost:hover{
  border-color:var(--about-orange);
  color:var(--about-orange);
}
.page-about .about-hero-note{
  font-size:13px;
  color:#7F92A5;
  border-left:2px solid #31618C;
  padding-left:14px;
  max-width:520px;
}
.page-about .about-hero-visual{
  position:relative;
  z-index:1;
  min-height:260px;
  background:linear-gradient(135deg,#10233A 0%,#0A1A2F 55%,#1C3045 100%);
  border:1px solid #1C3A54;
  border-radius:16px;
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.page-about .about-hero-svg{
  width:100%;
  height:auto;
  display:block;
}
.page-about .about-hero-code{
  position:absolute;
  bottom:14px;
  right:18px;
  font-size:11px;
  letter-spacing:.22em;
  color:#5A7491;
}
.page-about .about-section{
  padding:52px 20px;
  max-width:1200px;
  margin:0 auto;
}
.page-about .section-head{
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-bottom:28px;
  position:relative;
}
.page-about .section-number{
  font-family:"Noto Sans SC",sans-serif;
  font-size:44px;
  font-weight:900;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px var(--about-orange);
  white-space:nowrap;
  user-select:none;
}
.page-about .section-title{
  font-family:"Noto Sans SC","PingFang SC",sans-serif;
  font-size:26px;
  font-weight:800;
  color:var(--about-cream);
  margin:6px 0 0;
  position:relative;
}
.page-about .section-title::after{
  content:"";
  display:block;
  width:48px;
  height:4px;
  background:var(--about-orange);
  margin-top:12px;
  clip-path:polygon(0 0,100% 0,calc(100% - 6px) 100%,0 100%);
}

.page-about .about-brief{
  border-top:1px solid #1C3A54;
}
.page-about .about-brief-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
.page-about .chamfer-panel{
  background:linear-gradient(145deg,#10233A,#0E1F33);
  border:1px solid #1C3A54;
  border-radius:12px;
  padding:28px;
  position:relative;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.page-about .about-brief-main{
  padding:30px 28px;
}
.page-about .about-brief-main::before{
  content:"";
  position:absolute;
  top:18px;
  left:0;
  width:4px;
  height:52px;
  background:var(--about-orange);
}
.page-about .about-brief-title{
  font-family:"Noto Sans SC",sans-serif;
  font-size:20px;
  font-weight:700;
  color:var(--about-cream);
  margin:0 0 16px;
}
.page-about .about-brief-main p{
  font-size:14px;
  color:var(--about-ash);
  margin:0 0 16px;
}
.page-about .about-brief-main p:last-child{
  margin-bottom:0;
}
.page-about .about-brief-list{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
.page-about .about-brief-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
  background:#10233A;
  border:1px solid #1C3A54;
  border-radius:10px;
  padding:20px 22px;
  border-left:4px solid var(--about-blue);
  transition:border-color .2s,transform .2s;
}
.page-about .about-brief-item:hover{
  border-color:var(--about-orange);
  transform:translateX(4px);
}
.page-about .about-brief-item-num{
  font-family:"Noto Sans SC",sans-serif;
  font-size:34px;
  font-weight:900;
  color:var(--about-orange);
  line-height:1;
  white-space:nowrap;
}
.page-about .about-brief-item h3{
  font-family:"Noto Sans SC",sans-serif;
  font-size:16px;
  color:var(--about-cream);
  margin:0 0 6px;
  font-weight:700;
}
.page-about .about-brief-item p{
  font-size:13px;
  color:var(--about-ash);
  margin:0;
}

.page-about .about-timeline{
  border-top:1px solid #1C3A54;
  position:relative;
}
.page-about .about-timeline::before{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:280px;
  height:100%;
  background:linear-gradient(180deg,rgba(255,140,66,.06),transparent 40%);
  pointer-events:none;
}
.page-about .about-timeline-intro{
  font-size:14px;
  color:var(--about-ash);
  max-width:620px;
  margin:0 0 36px;
}
.page-about .about-timeline-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
.page-about .about-timeline-track{
  display:none;
}
.page-about .about-timeline-cards{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.page-about .about-version-card{
  background:linear-gradient(145deg,#10233A,#0E1F33);
  border:1px solid #1C3A54;
  border-radius:12px;
  padding:26px 26px 22px;
  position:relative;
  transition:border-color .2s,box-shadow .2s,transform .2s;
  overflow:hidden;
}
.page-about .about-version-card::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:6px;
  height:100%;
  background:var(--about-orange);
  opacity:0;
  transition:opacity .2s;
}
.page-about .about-version-card:hover{
  transform:translateX(4px);
  border-color:#31719E;
  box-shadow:0 0 0 1px rgba(74,158,255,.2);
}
.page-about .about-version-card:hover::after{
  opacity:1;
}
.page-about .about-version-card--v1{
  border-top:3px solid #A7B7C8;
}
.page-about .about-version-card--v2{
  border-top:3px solid #4A9EFF;
}
.page-about .about-version-card--v3{
  border-top:3px solid #FF8C42;
}
.page-about .about-version-meta{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom:14px;
}
.page-about .about-version-num{
  font-family:"Noto Sans SC",sans-serif;
  font-size:30px;
  font-weight:900;
  color:var(--about-cream);
  line-height:1;
}
.page-about .about-version-card--v1 .about-version-num{
  color:#A7B7C8;
}
.page-about .about-version-card--v2 .about-version-num{
  color:#4A9EFF;
}
.page-about .about-version-card--v3 .about-version-num{
  color:#FF8C42;
}
.page-about .about-version-period{
  font-size:13px;
  color:#8AA0B5;
}
.page-about .about-version-card h3{
  font-family:"Noto Sans SC",sans-serif;
  font-size:18px;
  color:var(--about-cream);
  margin:0 0 12px;
  font-weight:700;
}
.page-about .about-version-card p{
  font-size:13.5px;
  color:var(--about-ash);
  margin:0 0 16px;
}
.page-about .about-version-points{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  grid-template-columns:1fr;
  gap:8px;
}
.page-about .about-version-points li{
  font-size:13px;
  color:#9FB0BF;
  padding-left:18px;
  position:relative;
}
.page-about .about-version-points li::before{
  content:"▸";
  position:absolute;
  left:0;
  color:var(--about-orange);
}
.page-about .about-img-block{
  margin:36px 0 0;
  padding:0;
}
.page-about .about-img-block img{
  border-radius:12px;
  width:100%;
  height:auto;
  border:1px solid #1C3A54;
}
.page-about .about-img-block figcaption{
  font-size:12px;
  color:#7F92A5;
  margin-top:10px;
  letter-spacing:.04em;
}

.page-about .about-category{
  border-top:1px solid #1C3A54;
}
.page-about .about-category-intro{
  font-size:14px;
  color:var(--about-ash);
  max-width:620px;
  margin:0 0 30px;
}
.page-about .about-category-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
.page-about .about-category-fig{
  margin:0;
}
.page-about .about-category-fig img{
  width:100%;
  height:auto;
  border:1px solid #1C3A54;
  border-radius:12px;
}
.page-about .about-category-fig figcaption{
  font-size:12px;
  color:#7F92A5;
  margin-top:10px;
}
.page-about .about-category-list{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}
.page-about .about-cat-card{
  display:grid;
  grid-template-columns:44px 1fr 28px;
  align-items:center;
  gap:12px;
  background:#10233A;
  border:1px solid #1C3A54;
  border-left-width:4px;
  border-radius:10px;
  padding:14px 18px;
  position:relative;
  color:var(--about-cream);
  transition:all .2s;
}
.page-about .about-cat-card:hover{
  border-color:var(--about-orange);
  transform:translateX(4px);
}
.page-about .about-cat-card:nth-child(1){
  border-left-color:#A7B7C8;
}
.page-about .about-cat-card:nth-child(2){
  border-left-color:#4A9EFF;
}
.page-about .about-cat-card:nth-child(3){
  border-left-color:#9AB87A;
}
.page-about .about-cat-card:nth-child(4){
  border-left-color:#FF8C42;
}
.page-about .about-cat-card:nth-child(5){
  border-left-color:#D17A5A;
}
.page-about .about-cat-index{
  font-family:"Noto Sans SC",sans-serif;
  font-size:20px;
  font-weight:800;
  color:#7F92A5;
}
.page-about .about-cat-name{
  font-family:"Noto Sans SC",sans-serif;
  font-size:17px;
  font-weight:700;
  color:var(--about-cream);
}
.page-about .about-cat-desc{
  grid-column:2 / 4;
  font-size:13px;
  color:var(--about-ash);
  margin-top:-4px;
}
.page-about .about-cat-arrow{
  font-size:20px;
  color:var(--about-orange);
  text-align:center;
  transition:transform .2s;
}
.page-about .about-cat-card:hover .about-cat-arrow{
  transform:translateX(4px);
}

.page-about .about-verify{
  border-top:1px solid #1C3A54;
}
.page-about .about-verify-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-bottom:28px;
}
.page-about .about-verify-card{
  background:#10233A;
  border:1px solid #1C3A54;
  border-radius:10px;
  padding:22px 24px;
  position:relative;
  transition:border-color .2s;
}
.page-about .about-verify-card::before{
  content:"";
  position:absolute;
  top:0;
  left:24px;
  width:36px;
  height:3px;
  background:var(--about-blue);
}
.page-about .about-verify-card:nth-child(2)::before{
  background:var(--about-moss);
}
.page-about .about-verify-card:nth-child(3)::before{
  background:var(--about-orange);
}
.page-about .about-verify-card:hover{
  border-color:#31719E;
}
.page-about .about-verify-card h3{
  font-family:"Noto Sans SC",sans-serif;
  font-size:17px;
  color:var(--about-cream);
  margin:0 0 10px;
  font-weight:700;
}
.page-about .about-verify-card p{
  font-size:13.5px;
  color:var(--about-ash);
  margin:0;
}
.page-about .about-verify-check{
  background:linear-gradient(145deg,#10233A,#0E1F33);
  border:1px solid #1C3A54;
  border-left:4px solid var(--about-orange);
  border-radius:12px;
  padding:28px;
}
.page-about .about-check-copy h3{
  font-family:"Noto Sans SC",sans-serif;
  font-size:19px;
  font-weight:700;
  color:var(--about-cream);
  margin:0 0 14px;
}
.page-about .about-check-copy p{
  font-size:13.5px;
  color:var(--about-ash);
  margin:0 0 18px;
}
.page-about .about-check-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  grid-template-columns:1fr;
  gap:10px;
}
.page-about .about-check-list li{
  font-size:13.5px;
  color:#B7C4D2;
  padding-left:30px;
  position:relative;
  line-height:1.5;
}
.page-about .about-check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  color:var(--about-moss);
  font-weight:700;
  font-size:15px;
}
.page-about .about-check-note{
  margin-top:22px;
  padding-top:18px;
  border-top:1px dashed #27445C;
}
.page-about .about-check-tag{
  display:inline-block;
  background:rgba(209,122,90,.12);
  border:1px solid rgba(209,122,90,.5);
  color:#D17A5A;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  padding:4px 12px;
  border-radius:20px;
  margin-bottom:12px;
}
.page-about .about-check-note p{
  font-size:13px;
  color:#C3AD9F;
  margin:0;
}

.page-about .about-principles{
  border-top:1px solid #1C3A54;
  padding-bottom:72px;
}
.page-about .about-principles-intro{
  font-size:14px;
  color:var(--about-ash);
  max-width:620px;
  margin:0 0 30px;
}
.page-about .about-principles-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-bottom:36px;
}
.page-about .about-principle-card{
  background:linear-gradient(145deg,#10233A,#0E1F33);
  border:1px solid #1C3A54;
  border-radius:10px;
  padding:24px;
  position:relative;
  transition:border-color .2s;
}
.page-about .about-principle-card::before{
  content:"";
  position:absolute;
  top:24px;
  left:0;
  width:3px;
  height:32px;
  background:var(--about-orange);
}
.page-about .about-principle-card:hover{
  border-color:#31719E;
}
.page-about .about-principle-card h3{
  font-family:"Noto Sans SC",sans-serif;
  font-size:16px;
  font-weight:700;
  color:var(--about-cream);
  margin:0 0 12px;
}
.page-about .about-principle-card p{
  font-size:13.5px;
  color:var(--about-ash);
  margin:0;
}
.page-about .about-principles-cta{
  background:linear-gradient(135deg,rgba(255,140,66,.08),rgba(74,158,255,.06));
  border:1px solid #1C3A54;
  border-radius:12px;
  padding:32px;
  text-align:center;
}
.page-about .about-principles-cta p{
  font-size:14px;
  color:var(--about-ash);
  max-width:560px;
  margin:0 auto 24px;
}
.page-about .about-principles-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:14px;
}

@media (min-width:768px){
  .page-about .about-hero{
    grid-template-columns:1.1fr .9fr;
    gap:48px;
    align-items:center;
    padding-top:56px;
    padding-bottom:64px;
  }
  .page-about .about-hero-title{
    font-size:42px;
  }
  .page-about .about-hero-lead{
    font-size:16px;
  }
  .page-about .about-brief-grid{
    grid-template-columns:1.4fr 1fr;
    gap:20px;
    align-items:stretch;
  }
  .page-about .about-brief-list{
    gap:12px;
  }
  .page-about .about-timeline-cards{
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    align-items:start;
  }
  .page-about .about-version-card{
    min-height:0;
  }
  .page-about .about-timeline-track{
    display:flex;
    position:relative;
    align-items:center;
    margin-bottom:8px;
    padding:0 0 20px;
  }
  .page-about .about-track-line{
    position:absolute;
    left:0;
    right:0;
    top:28px;
    height:3px;
    background:linear-gradient(90deg,#A7B7C8 0%,#4A9EFF 50%,#FF8C42 100%);
    border-radius:2px;
    opacity:.6;
  }
  .page-about .about-track-node{
    flex:1;
    display:flex;
    justify-content:center;
    position:relative;
    z-index:1;
  }
  .page-about .about-track-node::before{
    content:"";
    width:14px;
    height:14px;
    border-radius:50%;
    background:#0A1A2F;
    border:3px solid var(--about-blue);
    position:relative;
    z-index:2;
  }
  .page-about .about-track-node--v1::before{
    border-color:#A7B7C8;
  }
  .page-about .about-track-node--v2::before{
    border-color:#4A9EFF;
  }
  .page-about .about-track-node--v3::before{
    border-color:#FF8C42;
  }
  .page-about .about-track-arrow{
    position:absolute;
    right:0;
    top:-4px;
    font-size:22px;
    color:var(--about-orange);
    opacity:.7;
    transform:translateX(10px);
  }
  .page-about .about-category-layout{
    grid-template-columns:1fr 1.1fr;
    gap:28px;
    align-items:center;
  }
  .page-about .about-verify-grid{
    grid-template-columns:repeat(3,1fr);
    gap:16px;
  }
  .page-about .about-principles-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .page-about .about-check-list{
    grid-template-columns:repeat(2,1fr);
    gap:12px;
  }
}

@media (min-width:1024px){
  .page-about .about-hero{
    padding-top:72px;
    padding-bottom:80px;
  }
  .page-about .about-hero-title{
    font-size:48px;
  }
  .page-about .about-hero-lead{
    font-size:17px;
  }
  .page-about .about-section{
    padding-top:64px;
    padding-bottom:64px;
  }
  .page-about .section-title{
    font-size:30px;
  }
  .page-about .section-number{
    font-size:52px;
  }
  .page-about .about-version-card{
    padding:30px;
  }
  .page-about .about-version-points{
    gap:10px;
  }
}
</<|END_OF_RESPONSE|>