.page-about{
  --about-green:#00FF9D;
  --about-purple:#B44DFF;
  --about-blue:#00D4FF;
  --about-yellow:#FFC857;
  --about-muted:#A0A8C0;
  --about-dim:#66707F;
  --about-bg-panel:rgba(255,255,255,0.04);
  --about-line:rgba(255,255,255,0.08);
  position:relative;
  background:
    linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px);
  background-size:32px 32px;
  background-position:center top;
  overflow:hidden;
  color:var(--c-white);
  font-family:var(--font-sans);
  line-height:1.6;
}
.page-about .container{max-width:var(--container-max);margin:0 auto;padding:0 20px}
.page-about .tag{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;padding:4px 10px;border-radius:4px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);text-transform:uppercase}
.page-about .tag[data-tone="green"]{color:var(--about-green);border-color:rgba(0,255,157,0.3);background:rgba(0,255,157,0.08)}
.page-about .tag[data-tone="purple"]{color:var(--about-purple);border-color:rgba(180,77,255,0.3);background:rgba(180,77,255,0.08)}
.page-about .tag[data-tone="blue"]{color:var(--about-blue);border-color:rgba(0,212,255,0.3);background:rgba(0,212,255,0.08)}
.page-about .panel-glass{background:var(--about-bg-panel);border:1px solid var(--about-line);border-radius:14px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 12px 40px rgba(0,0,0,0.25)}
.page-about .btn-cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:999px;background:linear-gradient(135deg,var(--about-green),var(--about-blue));color:#0A0E1A;font-family:var(--font-sans);font-weight:700;font-size:14px;letter-spacing:.02em;text-decoration:none;border:none;cursor:pointer;transition:transform var(--ease-fast),box-shadow var(--ease-fast)}
.page-about .btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,255,157,0.25)}

/* 面包屑 */
.page-about .about-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--about-muted);margin-bottom:24px}
.page-about .about-breadcrumb a{color:var(--about-muted);text-decoration:none;transition:color var(--ease-fast)}
.page-about .about-breadcrumb a:hover{color:var(--about-green)}
.page-about .about-breadcrumb-sep{color:var(--about-dim)}

/* 首屏框景 */
.page-about .about-hero{padding:40px 0 48px}
.page-about .about-hero-frame{position:relative;padding:32px 24px;background:linear-gradient(135deg,rgba(0,0,0,0.4),rgba(255,255,255,0.03));border:1px solid rgba(255,255,255,0.1);border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,0.4)}
.page-about .about-frame-corner{position:absolute;width:22px;height:22px;pointer-events:none}
.page-about .about-frame-corner-tl{top:-1px;left:-1px;border-top:3px solid var(--about-green);border-left:3px solid var(--about-green);border-top-left-radius:12px}
.page-about .about-frame-corner-tr{top:-1px;right:-1px;border-top:3px solid var(--about-purple);border-right:3px solid var(--about-purple);border-top-right-radius:12px}
.page-about .about-frame-corner-bl{bottom:-1px;left:-1px;border-bottom:3px solid var(--about-blue);border-left:3px solid var(--about-blue);border-bottom-left-radius:12px}
.page-about .about-frame-corner-br{bottom:-1px;right:-1px;border-bottom:3px solid var(--about-yellow);border-right:3px solid var(--about-yellow);border-bottom-right-radius:12px}
.page-about .about-hero-inner{position:relative;z-index:1}
.page-about .about-hero-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
.page-about .about-hero-version{font-family:var(--font-mono);font-size:12px;color:var(--about-dim);letter-spacing:.1em}
.page-about .about-hero h1{font-size:clamp(40px,7vw,72px);font-weight:900;line-height:1.05;letter-spacing:-0.02em;margin:0 0 12px;color:var(--c-white)}
.page-about .about-hero-sub{font-size:clamp(16px,2.4vw,22px);font-weight:400;color:var(--about-muted);margin:0 0 20px}
.page-about .about-hero-sub-accent{font-family:var(--font-mono);font-size:.78em;color:var(--about-green)}
.page-about .about-hero-desc{font-size:16px;color:var(--about-muted);max-width:680px;margin:0 0 32px;line-height:1.75}
.page-about .about-hero-stats{display:grid;grid-template-columns:1fr;gap:14px}
.page-about .about-hero-stat{display:flex;align-items:baseline;gap:10px;padding:14px 16px;background:rgba(255,255,255,0.04);border-left:3px solid var(--about-green);border-radius:8px}
.page-about .about-hero-stat:nth-child(2){border-left-color:var(--about-purple)}
.page-about .about-hero-stat:nth-child(3){border-left-color:var(--about-blue)}
.page-about .about-hero-stat-num{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--about-green);line-height:1}
.page-about .about-hero-stat:nth-child(2) .about-hero-stat-num{color:var(--about-purple)}
.page-about .about-hero-stat:nth-child(3) .about-hero-stat-num{color:var(--about-blue)}
.page-about .about-hero-stat-label{font-size:13px;color:var(--about-muted)}

/* 锚点导航 */
.page-about .about-anchor-nav{display:flex;gap:8px;overflow-x:auto;padding:0 20px 8px;max-width:var(--container-max);margin:0 auto;scrollbar-width:none}
.page-about .about-anchor-nav::-webkit-scrollbar{display:none}
.page-about .about-anchor-link{flex-shrink:0;font-family:var(--font-mono);font-size:13px;color:var(--about-muted);text-decoration:none;padding:8px 16px;border-radius:999px;border:1px solid var(--about-line);background:rgba(255,255,255,0.03);transition:all var(--ease-fast)}
.page-about .about-anchor-link:hover{color:var(--about-green);border-color:rgba(0,255,157,0.3);background:rgba(0,255,157,0.06)}

/* 通用章节 */
.page-about .about-section{padding:56px 0;position:relative}
.page-about .about-section::before{content:"";display:block;height:1px;max-width:calc(100% - 40px);margin:0 auto;background:linear-gradient(90deg,var(--about-dim) 0%,transparent 100%);opacity:0.4}
.page-about .about-section-tech::before{background:linear-gradient(90deg,var(--about-purple) 0%,var(--about-green) 50%,transparent 100%)}
.page-about .about-section-data::before{background:linear-gradient(90deg,var(--about-blue) 0%,transparent 100%)}
.page-about .about-section-grid{display:grid;grid-template-columns:1fr;gap:28px}
.page-about .about-aside{position:relative;padding-top:6px}
.page-about .about-aside-num{display:block;font-family:var(--font-mono);font-size:36px;font-weight:700;color:transparent;-webkit-text-stroke:1px var(--about-green);line-height:1;margin-bottom:10px}
.page-about .about-aside-title{font-size:24px;font-weight:900;margin:0 0 8px;color:var(--c-white)}
.page-about .about-aside-note{font-size:13px;color:var(--about-dim);margin:0;line-height:1.5}
.page-about .about-main{min-width:0}
.page-about .about-intro-text{font-size:16px;color:var(--about-muted);line-height:1.8;margin:0 0 28px}

/* 时间线 */
.page-about .about-timeline{position:relative;display:grid;gap:24px;padding-left:22px;margin-bottom:36px}
.page-about .about-timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--about-green) 0%,var(--about-blue) 40%,var(--about-purple) 80%,var(--about-yellow) 100%);opacity:0.5;border-radius:2px}
.page-about .about-timeline-node{position:relative}
.page-about .about-timeline-node::before{content:"";position:absolute;left:-22px;top:20px;width:12px;height:12px;border-radius:50%;background:var(--about-green);box-shadow:0 0 12px rgba(0,255,157,0.5)}
.page-about .about-timeline-node:nth-child(2)::before{background:var(--about-blue);box-shadow:0 0 12px rgba(0,212,255,0.5)}
.page-about .about-timeline-node:nth-child(3)::before{background:var(--about-purple);box-shadow:0 0 12px rgba(180,77,255,0.5)}
.page-about .about-timeline-node:nth-child(4)::before{background:var(--about-yellow);box-shadow:0 0 12px rgba(255,200,87,0.5)}
.page-about .about-timeline-year{display:inline-block;font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--about-green);letter-spacing:.08em;padding:3px 12px;margin-bottom:10px;border-radius:999px;background:rgba(0,255,157,0.08);border:1px solid rgba(0,255,157,0.2)}
.page-about .about-timeline-node:nth-child(2) .about-timeline-year{color:var(--about-blue);background:rgba(0,212,255,0.08);border-color:rgba(0,212,255,0.2)}
.page-about .about-timeline-node:nth-child(3) .about-timeline-year{color:var(--about-purple);background:rgba(180,77,255,0.08);border-color:rgba(180,77,255,0.2)}
.page-about .about-timeline-node:nth-child(4) .about-timeline-year{color:var(--about-yellow);background:rgba(255,200,87,0.08);border-color:rgba(255,200,87,0.2)}
.page-about .about-timeline-card{padding:18px 20px;border-left-width:3px;transition:transform var(--ease-fast),box-shadow var(--ease-fast),border-color var(--ease-fast)}
.page-about .about-timeline-card:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,0.3);border-color:rgba(0,255,157,0.4)}
.page-about .about-timeline-card h3{font-size:18px;font-weight:700;margin:0 0 6px;color:var(--c-white)}
.page-about .about-timeline-card p{font-size:14px;color:var(--about-muted);margin:0;line-height:1.6}

/* 数据覆盖 */
.page-about .about-data-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:20px}
.page-about .about-data-metric{padding:18px;text-align:left;border-top:3px solid var(--about-green);transition:transform var(--ease-fast),box-shadow var(--ease-fast)}
.page-about .about-data-metric:nth-child(2){border-top-color:var(--about-purple)}
.page-about .about-data-metric:nth-child(3){border-top-color:var(--about-blue)}
.page-about .about-data-metric:nth-child(4){border-top-color:var(--about-yellow)}
.page-about .about-data-metric:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,0.3)}
.page-about .about-data-value{display:block;font-family:var(--font-mono);font-size:34px;font-weight:700;color:var(--about-green);line-height:1.1;margin-bottom:4px}
.page-about .about-data-metric:nth-child(2) .about-data-value{color:var(--about-purple)}
.page-about .about-data-metric:nth-child(3) .about-data-value{color:var(--about-blue)}
.page-about .about-data-metric:nth-child(4) .about-data-value{color:var(--about-yellow)}
.page-about .about-data-unit{font-family:var(--font-mono);font-size:12px;color:var(--about-dim);text-transform:uppercase;letter-spacing:.08em}
.page-about .about-data-metric p{font-size:13px;color:var(--about-muted);margin:10px 0 0;line-height:1.5}
.page-about .about-data-freq{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--about-muted);padding:14px 18px;margin-bottom:32px;background:rgba(255,255,255,0.03);border-radius:999px;border:1px solid rgba(255,255,255,0.06)}
.page-about .about-data-pulse{flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--about-green);box-shadow:0 0 0 0 rgba(0,255,157,0.6);animation:aboutPulse 2s infinite}
@keyframes aboutPulse{0%{box-shadow:0 0 0 0 rgba(0,255,157,0.5)}70%{box-shadow:0 0 0 10px rgba(0,255,157,0)}100%{box-shadow:0 0 0 0 rgba(0,255,157,0)}}

/* 图片容器 */
.page-about .about-figure{margin:0;padding-top:12px}
.page-about .about-figure img{width:100%;height:auto;max-width:100%;object-fit:cover;border-radius:16px;border:1px solid var(--about-line);display:block;transition:transform var(--ease-fast),box-shadow var(--ease-fast)}
.page-about .about-figure:hover img{transform:scale(1.01);box-shadow:0 16px 40px rgba(0,0,0,0.4)}
.page-about .about-figure figcaption{font-size:12px;color:var(--about-dim);padding:10px 4px 0;font-family:var(--font-mono)}

/* 技术演进技能树 */
.page-about .about-tech-tree{display:grid;grid-template-columns:1fr;gap:20px}
.page-about .about-tech-branch{position:relative;padding:20px;border-radius:14px;background:rgba(255,255,255,0.03);border:1px solid var(--about-line);border-left:4px solid var(--about-green);transition:transform var(--ease-fast),box-shadow var(--ease-fast)}
.page-about .about-tech-branch:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,0.3)}
.page-about .about-tech-branch-blue{border-left-color:var(--about-blue)}
.page-about .about-tech-branch-purple{border-left-color:var(--about-purple)}
.page-about .about-tech-root{padding-bottom:16px;margin-bottom:16px;border-bottom:1px dashed var(--about-line)}
.page-about .about-tech-tag{display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--about-green);background:rgba(0,255,157,0.08);padding:2px 8px;border-radius:4px;margin-bottom:8px}
.page-about .about-tech-branch-blue .about-tech-tag{color:var(--about-blue);background:rgba(0,212,255,0.08)}
.page-about .about-tech-branch-purple .about-tech-tag{color:var(--about-purple);background:rgba(180,77,255,0.08)}
.page-about .about-tech-root h3{font-size:17px;font-weight:700;margin:0 0 6px;color:var(--c-white)}
.page-about .about-tech-root p{font-size:13px;color:var(--about-muted);margin:0}
.page-about .about-tech-children{display:grid;grid-template-columns:1fr;gap:12px}
.page-about .about-tech-node{position:relative;padding:14px;border-radius:10px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.05)}
.page-about .about-tech-node::before{content:"";position:absolute;top:-12px;left:20px;width:1px;height:12px;background:var(--about-green)}
.page-about .about-tech-branch-blue .about-tech-node::before{background:var(--about-blue)}
.page-about .about-tech-branch-purple .about-tech-node::before{background:var(--about-purple)}
.page-about .about-tech-node h4{font-size:15px;font-weight:600;margin:0 0 4px;color:var(--c-white)}
.page-about .about-tech-node p{font-size:13px;color:var(--about-muted);margin:0;line-height:1.5}

/* 团队与生态 */
.page-about .about-team-overview{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:24px}
.page-about .about-team-card{padding:22px}
.page-about .about-team-card h3{font-size:18px;font-weight:700;margin:0 0 8px;color:var(--c-white)}
.page-about .about-team-card p{font-size:14px;color:var(--about-muted);margin:0;line-height:1.7}
.page-about .about-team-number{display:flex;align-items:baseline;gap:10px;padding:22px;border-radius:14px;background:linear-gradient(135deg,rgba(0,255,157,0.08),rgba(0,212,255,0.06));border:1px solid rgba(0,255,157,0.15);justify-content:center}
.page-about .about-team-num{font-family:var(--font-mono);font-size:52px;font-weight:700;color:var(--about-green);line-height:1}
.page-about .about-team-unit{font-size:15px;color:var(--about-muted)}
.page-about .about-team-chart{padding:22px;margin-bottom:24px}
.page-about .about-team-chart h4{font-size:15px;color:var(--about-muted);margin:0 0 16px;font-weight:600}
.page-about .about-team-chart-row{display:grid;grid-template-columns:90px 1fr 44px;align-items:center;gap:12px;margin-bottom:10px}
.page-about .about-team-chart-label{font-size:13px;color:var(--about-muted);white-space:nowrap}
.page-about .about-team-chart-track{height:8px;border-radius:4px;background:rgba(255,255,255,0.06);overflow:hidden}
.page-about .about-team-chart-bar{display:block;height:100%;border-radius:4px;background:var(--about-green);transition:width 1s ease}
.page-about .about-team-chart-purple{background:var(--about-purple)}
.page-about .about-team-chart-blue{background:var(--about-blue)}
.page-about .about-team-chart-value{font-family:var(--font-mono);font-size:13px;color:var(--c-white);text-align:right}
.page-about .about-eco-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:32px}
.page-about .about-eco-card{padding:20px;transition:transform var(--ease-fast),box-shadow var(--ease-fast)}
.page-about .about-eco-card:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,0.3)}
.page-about .about-eco-card h4{font-size:16px;font-weight:700;margin:10px 0 6px;color:var(--c-white)}
.page-about .about-eco-card p{font-size:13px;color:var(--about-muted);margin:0;line-height:1.6}

/* 荣誉 */
.page-about .about-honor-list{display:grid;gap:16px}
.page-about .about-honor-item{display:flex;gap:18px;align-items:flex-start;padding:22px;transition:transform var(--ease-fast),box-shadow var(--ease-fast),border-color var(--ease-fast)}
.page-about .about-honor-item:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,0,0,0.3);border-color:rgba(0,255,157,0.25)}
.page-about .about-honor-icon{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;font-size:20px;border-radius:10px;background:rgba(0,255,157,0.1);color:var(--about-green)}
.page-about .about-honor-item:nth-child(2) .about-honor-icon{background:rgba(180,77,255,0.1);color:var(--about-purple)}
.page-about .about-honor-item:nth-child(3) .about-honor-icon{background:rgba(0,212,255,0.1);color:var(--about-blue)}
.page-about .about-honor-item h3{font-size:16px;font-weight:700;margin:0 0 6px;color:var(--c-white)}
.page-about .about-honor-item p{font-size:14px;color:var(--about-muted);margin:0;line-height:1.65}

/* CTA区域 */
.page-about .about-cta{padding:56px 0 72px}
.page-about .about-cta::before{content:"";display:block;height:1px;max-width:100%;margin-bottom:48px;background:linear-gradient(90deg,transparent,var(--about-green),var(--about-purple),transparent);opacity:0.3}
.page-about .about-cta-grid{display:grid;grid-template-columns:1fr;gap:18px}
.page-about .about-cta-item{padding:24px}
.page-about .about-cta-item h3{font-size:19px;font-weight:700;margin:12px 0 6px;color:var(--c-white)}
.page-about .about-cta-item p{font-size:14px;color:var(--about-muted);margin:0 0 18px;line-height:1.6}

/* 滚动渐显 */
.page-about [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity 0.6s ease,transform 0.6s ease}
.page-about [data-reveal].is-visible{opacity:1;transform:translateY(0)}

/* ===== 平板及以上 ===== */
@media (min-width:768px){
  .page-about .about-hero{padding:56px 0 64px}
  .page-about .about-hero-frame{padding:48px 56px}
  .page-about .about-hero-stats{grid-template-columns:repeat(3,1fr);gap:12px}
  .page-about .about-data-metrics{grid-template-columns:repeat(4,1fr)}
  .page-about .about-tech-children{grid-template-columns:1fr 1fr}
  .page-about .about-eco-grid{grid-template-columns:repeat(3,1fr)}
  .page-about .about-team-overview{grid-template-columns:1fr auto}
  .page-about .about-team-chart-row{grid-template-columns:110px 1fr 50px}
  .page-about .about-cta-grid{grid-template-columns:repeat(3,1fr)}
  .page-about .about-cta-item{display:flex;flex-direction:column}
  .page-about .about-cta-item .btn-cta{margin-top:auto;align-self:flex-start}
}
/* ===== 桌面端 ===== */
@media (min-width:1024px){
  .page-about .about-section{padding:72px 0}
  .page-about .about-section-grid{grid-template-columns:220px minmax(0,1fr);gap:56px}
  .page-about .about-aside-num{font-size:46px}
  .page-about .about-aside-title{font-size:28px}
  .page-about .about-tech-tree{grid-template-columns:repeat(3,1fr);gap:20px}
  .page-about .about-tech-branch{margin-bottom:0}
  .page-about .about-timeline{padding-left:32px}
  .page-about .about-timeline::before{left:11px}
  .page-about .about-timeline-node::before{left:-32px;width:14px;height:14px}
  .page-about .about-timeline-card{padding:20px 24px}
  .page-about .about-hero-desc{font-size:17px}
  .page-about .about-hero-stats{max-width:580px}
}