/* ===== HOMEPAGE-ONLY STYLES ===== */
.nav-on-hero{background:transparent;border-bottom:none}

.hero{
  position:relative;
  background:var(--grad-hero);
  overflow:hidden;
  padding-bottom:0;
  min-height:640px;
}
.hero::before{
  content:'';position:absolute;top:100px;left:-100px;width:700px;height:700px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,181,218,.25) 0%,transparent 70%);
  pointer-events:none;z-index:1;
}
.hero::after{
  content:'';position:absolute;top:-150px;right:-100px;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(109,195,176,.35) 0%,transparent 70%);
  pointer-events:none;z-index:1;
}
/* exo 主视觉作为右侧背景层，向左用 mask 自然淡出到品牌底色 */
.hero-art{
  position:absolute;top:0;right:0;bottom:0;
  width:62%;max-width:900px;z-index:1;
  background-size:cover;background-position:center right;background-repeat:no-repeat;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 40%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 40%,#000 100%);
  opacity:.92;
  pointer-events:none;
}
.hero-inner{display:flex;gap:60px;align-items:center;padding:80px 80px 96px;position:relative;z-index:2;min-height:640px}
.hero-copy{flex:1;max-width:680px}
.hero h1{font-size:64px;font-weight:700;letter-spacing:4px;line-height:1.32;margin:0 0 40px;color:var(--ink)}
.hero h1 span{display:inline-block}
.hero-desc{font-size:17px;line-height:2.1;color:var(--body);max-width:620px;margin:0 0 48px;letter-spacing:1.5px}
.cta-row{display:flex;gap:14px;align-items:center}
.btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 26px;border-radius:10px;background:var(--grad-brand);
  color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 30px rgba(109,195,176,.4);
}
.btn-secondary{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 26px;border-radius:10px;
  background:rgba(255,255,255,.7);border:1px solid rgba(109,195,176,.4);
  color:var(--ink-2);font-size:15px;font-weight:500;
  backdrop-filter:blur(6px);
}

.data-strip{
  display:flex;justify-content:space-between;align-items:center;
  padding:24px 80px;
  background:rgba(255,255,255,.7);backdrop-filter:blur(20px);
  border-top:1px solid rgba(109,195,176,.2);
  position:relative;z-index:2;
}
.metric{display:flex;flex-direction:column;gap:4px}
.metric .num{font-size:20px;font-weight:700;letter-spacing:-.5px;color:var(--ink)}
.metric .lbl{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.5px}
.divider{width:1px;height:56px;background:rgba(109,195,176,.2)}

.about{background:#fff}
.about-head{display:flex;gap:80px}
.about-head > div:first-child{flex:1}
.about-head .section-desc{max-width:520px}
/* 关于我们 banner —— 替换 images/about-banner.jpg 即可，缺图回退 */
.about-banner{
  margin-top:48px;width:100%;height:300px;
  border-radius:18px;overflow:hidden;position:relative;
  box-shadow:0 14px 32px rgba(127,181,218,.15);
  border:1px solid rgba(109,195,176,.18);
}
.about-banner img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1.2s ease}
.about-banner:hover img{transform:scale(1.04)}
.about-banner::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(30,54,71,.05) 0%,rgba(74,168,163,.04) 50%,transparent 100%);
  pointer-events:none;
}
@media(max-width:700px){.about-banner{height:180px;margin-top:32px}}

.honors{margin-top:48px}
.honors-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}
.honors-title{font-size:13px;font-weight:600;letter-spacing:2px;color:var(--muted);margin:0}
.honors-more{font-size:13px;font-weight:600;color:var(--brand-teal)}
.honors-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.honor-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:28px;display:flex;flex-direction:column;gap:20px;
  box-shadow:0 8px 20px rgba(109,195,176,.12);
}
.honor-card.featured{background:linear-gradient(135deg,#fff 0%,var(--bg-soft) 100%);border-color:rgba(109,195,176,.55);box-shadow:0 16px 32px rgba(109,195,176,.2)}
.honor-badge{
  width:56px;height:56px;border-radius:16px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.honor-badge .material-symbols-outlined{font-size:32px}
.honor-card h4{font-size:17px;font-weight:700;margin:0;color:var(--ink);line-height:1.3}
.honor-card p{font-size:12px;color:var(--muted);margin:0}

.timeline{margin-top:40px}
.timeline-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px}
.timeline-head .left{display:flex;flex-direction:column;gap:8px}
.timeline-head .tag{font-size:13px;font-weight:600;letter-spacing:2px;color:var(--muted)}
.timeline-head h4{font-size:32px;font-weight:700;letter-spacing:-1px;margin:0;color:var(--ink)}
.timeline-head .more{font-size:13px;font-weight:600;color:var(--brand-teal)}
.timeline-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.timeline-row::before{
  content:'';position:absolute;top:54px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(109,195,176,.1) 0%,var(--brand-mint) 30%,var(--brand-blue) 70%,rgba(127,181,218,.1) 100%);
  z-index:0;pointer-events:none;
}
.tl-item{
  position:relative;z-index:1;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:28px;display:flex;flex-direction:column;gap:14px;
  box-shadow:0 8px 20px rgba(109,195,176,.1);
  transition:transform .25s ease, box-shadow .25s ease;
  overflow:hidden;
}
.tl-item::before{
  content:'';position:absolute;top:0;left:24px;right:24px;height:3px;
  border-radius:0 0 4px 4px;background:var(--grad-brand);
}
.tl-item:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(109,195,176,.2)}
/* 卡片照片背景层 —— 替换 images/timeline-{2024,2025,2026}.jpg 即可 */
.tl-bg{position:absolute;inset:0;z-index:0;overflow:hidden;border-radius:16px}
.tl-bg img{width:100%;height:100%;object-fit:cover;display:block;opacity:.65}
.tl-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.25) 0%,rgba(255,255,255,.55) 35%,rgba(255,255,255,.88) 70%,rgba(255,255,255,.96) 100%)}
.tl-item > *:not(.tl-bg){position:relative;z-index:1}
.tl-icon{
  width:56px;height:56px;border-radius:18px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 8px 18px rgba(109,195,176,.32);
}
.tl-icon .material-symbols-outlined{font-size:30px}
.tl-year{font-size:36px;font-weight:700;letter-spacing:-1.2px;color:var(--ink);margin:0;line-height:1}
.tl-item:last-child .tl-year{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.tl-headline{font-size:17px;font-weight:700;color:var(--ink);margin:0;letter-spacing:-.3px;line-height:1.35}
.tl-body{font-size:14px;line-height:1.75;color:var(--body);margin:0}

.tech{background:linear-gradient(180deg,#fff 0%,var(--bg-soft) 100%)}
.tech-head{display:flex;justify-content:space-between;align-items:flex-end;gap:80px}
.tech-head > div:first-child{flex:1}
.tech-legend{background:var(--ink);padding:20px 24px;border-radius:12px;display:flex;flex-direction:column;gap:10px;flex-shrink:0}
.tech-legend .t{font-size:11px;font-weight:600;letter-spacing:1.5px;color:#7EA0BE}
.tech-legend .n{font-size:48px;font-weight:700;letter-spacing:-2px;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px}
.tech-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease, box-shadow .25s ease}
.tech-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(109,195,176,.18)}
.tech-card.featured{
  background:linear-gradient(135deg,var(--ink) 0%,#2A5A6B 50%,var(--brand-teal) 100%);
  color:#fff;border-color:transparent;
}
.tech-card .vis{
  height:140px;background-size:cover;background-position:center;
  display:flex;align-items:flex-end;padding:20px;
}
.tech-card .chip{
  padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.33);
  color:#fff;font-size:10px;font-weight:700;letter-spacing:1px;
}
.tech-card.featured .chip{background:rgba(5,17,31,.66)}
.tech-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.tech-card h4{font-size:22px;font-weight:700;letter-spacing:-.5px;margin:0;color:var(--ink)}
.tech-card.featured h4{color:#fff}
.tech-card .sub{font-size:11px;font-weight:500;letter-spacing:1px;color:var(--brand-teal)}
.tech-card.featured .sub{color:var(--brand-sage)}
.tech-card .desc{font-size:13px;line-height:1.6;color:var(--body);margin:0}
.tech-card.featured .desc{color:#A0B2C4}
.tech-card .stats{display:flex;gap:16px;padding-top:8px}
.tech-card .stat{display:flex;flex-direction:column;gap:2px}
.tech-card .stat .sn{font-size:18px;font-weight:700;color:var(--brand-mint)}
.tech-card .stat .sl{font-size:10px;font-weight:500;color:#7EA0BE}
.tech-card .link{font-size:13px;font-weight:600;color:var(--brand-teal);margin-top:4px}
.tech-card.featured .link{color:var(--brand-mint)}

.adv{background:linear-gradient(135deg,#E8F3F5 0%,#D4E9E4 50%,#C3DDD5 100%);position:relative;overflow:hidden}
.adv::before{
  content:'';position:absolute;top:-300px;left:-200px;width:1000px;height:1000px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.6) 0%,transparent 70%);pointer-events:none;
}
.adv-head{max-width:none;text-align:left}
.adv-head .section-tag{background:rgba(109,195,176,.2);border:1px solid rgba(109,195,176,.4)}
.adv-head h3{font-size:44px;font-weight:700;letter-spacing:-1.2px;line-height:1.2;margin:20px 0}
.adv-head p{font-size:15px;line-height:1.7;color:var(--body);margin:0}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px;position:relative;z-index:2}
.adv-card{
  position:relative;overflow:hidden;
  background:rgba(255,255,255,.82);border:1px solid rgba(109,195,176,.22);border-radius:14px;
  padding:28px;display:flex;flex-direction:column;gap:16px;
  box-shadow:0 10px 24px rgba(127,181,218,.14);
  transition:transform .25s ease, box-shadow .25s ease;
}
.adv-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(109,195,176,.24)}
.adv-card.featured{background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(237,246,244,.88));border-color:rgba(109,195,176,.6);box-shadow:0 14px 28px rgba(109,195,176,.22)}
/* 顶部 brand 渐变细条 */
.adv-card::before{
  content:'';position:absolute;top:0;left:24px;right:24px;height:3px;
  border-radius:0 0 4px 4px;background:var(--grad-brand);z-index:2;
}
/* 卡片照片背景层 —— 替换 images/adv-{seedbank,culture,3d,lyo,qc,patent}.jpg 即可 */
.adv-bg{position:absolute;inset:0;z-index:0;overflow:hidden;border-radius:14px}
.adv-bg img{width:100%;height:100%;object-fit:cover;display:block;opacity:.55}
.adv-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.32) 0%,rgba(255,255,255,.62) 35%,rgba(255,255,255,.9) 70%,rgba(255,255,255,.96) 100%)}
.adv-card > *:not(.adv-bg){position:relative;z-index:1}
.adv-head-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.adv-icon{
  width:48px;height:48px;border-radius:14px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 6px 14px rgba(109,195,176,.32);
}
.adv-icon .material-symbols-outlined{font-size:26px}
.adv-num{font-size:32px;font-weight:700;letter-spacing:-1px;color:var(--brand-teal)}
.adv-badge{padding:4px 10px;border-radius:999px;font-size:10px;font-weight:700;letter-spacing:.5px}
.adv-badge.b1{background:rgba(109,195,176,.18);color:var(--brand-teal)}
.adv-badge.b2{background:rgba(127,181,218,.2);color:#5A95C4}
.adv-badge.b3{background:rgba(139,92,246,.14);color:#8B5CF6}
.adv-badge.b4{background:rgba(127,181,218,.2);color:#5A95C4}
.adv-badge.b5{background:rgba(74,168,163,.2);color:var(--brand-teal)}
.adv-badge.b6{background:rgba(245,166,36,.14);color:#C78220}
.adv-card h4{font-size:20px;font-weight:700;margin:0;color:var(--ink)}
.adv-card p{font-size:13px;line-height:1.65;color:var(--body);margin:0}

.news{background:#fff;padding-bottom:48px}
.news-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
.news-tabs{display:flex;gap:8px;padding:6px;border-radius:999px;background:var(--bg-soft)}
.news-tab{padding:8px 16px;border-radius:999px;font-size:13px;font-weight:500;color:var(--body);cursor:pointer}
.news-tab.active{background:var(--grad-brand);color:#fff;font-weight:600}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;height:460px;display:flex;flex-direction:column;transition:transform .25s ease, box-shadow .25s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(109,195,176,.18)}
.news-img{height:180px;background-size:cover;background-position:center;display:flex;align-items:flex-end;padding:16px}
.news-chip{padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.85);color:var(--ink);font-size:10px;font-weight:700;letter-spacing:.5px}
.news-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-date{font-size:11px;font-weight:600;letter-spacing:1px;color:var(--muted)}
.news-body h4{font-size:17px;font-weight:700;line-height:1.4;margin:0;color:var(--ink)}
.news-body p{font-size:13px;line-height:1.6;color:var(--body);margin:0}

.partners{background:linear-gradient(180deg,#fff 0%,var(--bg-soft) 100%);padding:48px 0 64px}
.partners-head{text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}
.partners-head .tag{font-size:12px;font-weight:600;letter-spacing:2px;color:var(--muted)}
.partners-head h3{font-size:26px;font-weight:700;letter-spacing:-.5px;margin:0;color:var(--ink)}
.partners-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:40px}
.partner-logo{
  display:flex;align-items:center;justify-content:center;gap:10px;
  height:72px;border-radius:10px;
  background:#fff;border:1px solid var(--line);
}
.partner-logo .material-symbols-outlined{font-size:28px}
.partner-logo .name{font-size:14px;font-weight:700;color:var(--ink)}
.partner-logo:nth-child(odd) .material-symbols-outlined{color:var(--brand-mint)}
.partner-logo:nth-child(even) .material-symbols-outlined{color:var(--brand-blue)}

@media (max-width:1100px){
  .hero{min-height:560px}
  .hero-inner{padding:24px 40px 40px;gap:32px}
  .data-strip{padding:20px 40px;flex-wrap:wrap;gap:16px;justify-content:flex-start}
  .data-strip .divider{display:none}
  .metric{flex:0 0 calc(50% - 8px);min-width:160px}
  .hero h1{font-size:52px;letter-spacing:-1.4px}
  .hero-art{width:58%}
  .honors-grid{grid-template-columns:repeat(3,1fr)}
  .tech-grid,.adv-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .partners-grid{grid-template-columns:repeat(3,1fr)}
  .tech-head,.news-head,.about-head{flex-direction:column;gap:24px}
  .tech-legend{align-self:flex-start}
}

@media (max-width:700px){
  .hero{min-height:auto}
  .hero-art{
    position:relative;width:100%;max-width:none;height:280px;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 70%,transparent 100%);
    mask-image:linear-gradient(180deg,#000 0%,#000 70%,transparent 100%);
  }
  .hero-inner{flex-direction:column;padding:24px 20px 24px;gap:40px;align-items:stretch}
  .hero-copy{padding-top:16px;max-width:none}
  .hero h1{font-size:36px;letter-spacing:-1px;line-height:1.18;margin-bottom:18px}
  .hero-desc{font-size:15px;line-height:1.85;margin-bottom:24px}
  .cta-row{flex-direction:column;align-items:stretch;width:100%}
  .btn-primary,.btn-secondary{justify-content:center;padding:14px 20px;font-size:14px;width:100%}

  .data-strip{padding:16px 20px;overflow-x:auto;flex-wrap:nowrap;gap:20px;-webkit-overflow-scrolling:touch}
  .data-strip::-webkit-scrollbar{display:none}
  .metric{flex:0 0 auto;min-width:auto}
  .metric .num{font-size:15px;white-space:nowrap}
  .metric .lbl{font-size:10px;white-space:nowrap}

  .about-head{flex-direction:column;gap:20px}
  .honors{margin-top:40px}
  .honors-row{flex-direction:column;align-items:flex-start;gap:8px}
  .honors-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .honor-card{padding:20px;gap:14px}
  .honor-card h4{font-size:15px}
  .honor-card p{font-size:11px}
  .honor-badge{width:44px;height:44px;border-radius:12px}
  .honor-badge .material-symbols-outlined{font-size:24px}

  .timeline{margin-top:32px}
  .timeline-head{flex-direction:column;align-items:flex-start;gap:8px}
  .timeline-head h4{font-size:22px}
  .timeline-row{grid-template-columns:1fr;gap:20px}
  .tl-year{font-size:32px}
  .tl-body{font-size:13px}

  .tech-grid{grid-template-columns:1fr;gap:16px;margin-top:32px}
  .tech-card .vis{height:120px;padding:16px}
  .tech-card .body{padding:20px;gap:10px}
  .tech-card h4{font-size:19px}
  .tech-card .desc{font-size:13px}
  .tech-legend{padding:16px 20px}
  .tech-legend .n{font-size:36px}

  .adv-head h3{font-size:26px}
  .adv-head p{font-size:14px}
  .adv-grid{grid-template-columns:1fr;gap:14px;margin-top:32px}
  .adv-card{padding:22px}
  .adv-num{font-size:26px}
  .adv-card h4{font-size:17px}
  .adv-card p{font-size:13px}

  .news-head{flex-direction:column;align-items:flex-start;gap:16px}
  .news-tabs{overflow-x:auto;flex-wrap:nowrap;max-width:100%;-webkit-overflow-scrolling:touch}
  .news-tabs::-webkit-scrollbar{display:none}
  .news-tab{flex-shrink:0}
  .news-grid{grid-template-columns:1fr;gap:16px;margin-top:24px}
  .news-card{height:auto}
  .news-img{height:160px}

  .partners{padding:48px 0}
  .partners-head h3{font-size:20px;line-height:1.4;padding:0 10px}
  .partners-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:24px}
  .partner-logo{height:60px;padding:0 10px}
  .partner-logo .name{font-size:12px}
  .partner-logo .material-symbols-outlined{font-size:22px}
}

@media (max-width:380px){
  .hero h1{font-size:30px}
  h3.section-title,.section-title-sm{font-size:22px}
  .honors-grid,.partners-grid{grid-template-columns:1fr 1fr;gap:8px}
}