:root{--ink:#14342b;--muted:#63746d;--leaf:#2f7d51;--mint:#dff3e8;--amber:#d8952b;--coral:#d66a4a;--line:#cfddd6;--paper:#f8fbf8;--white:#fff;--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",sans-serif;letter-spacing:0;line-height:1.72}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font:inherit}
.top{position:sticky;top:0;z-index:20;background:rgba(248,251,248,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(47,125,81,.15)}.bar{max-width:var(--max);margin:auto;min-height:72px;display:flex;align-items:center;gap:28px;padding:0 24px}.brand{display:flex;align-items:center;gap:11px;font-weight:800}.brand i{width:32px;height:32px;border-radius:50% 50% 48% 52%;display:grid;place-items:center;background:var(--leaf);color:white;font-style:normal}.nav{display:flex;gap:25px;margin-left:auto;font-size:14px}.nav a:hover{color:var(--leaf)}.menu{display:none;margin-left:auto;border:0;background:none;font-size:24px}
.hero{min-height:690px;position:relative;display:grid;align-items:center;overflow:hidden;background:#f2f8f3}.hero-media{position:absolute;inset:0}.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}.hero-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(248,251,248,.97) 0%,rgba(248,251,248,.88) 36%,rgba(248,251,248,.18) 68%,rgba(248,251,248,.06) 100%)}.hero-copy{position:relative;z-index:2;width:min(100% - 48px,var(--max));margin:auto;padding:92px 0}.eyebrow{display:flex;align-items:center;gap:9px;color:var(--leaf);font-weight:700;font-size:13px;text-transform:uppercase}.eyebrow:before{content:"";width:34px;border-top:2px solid var(--amber)}h1{font-family:"Noto Serif SC",serif;font-size:clamp(46px,6.3vw,90px);line-height:1.06;max-width:720px;margin:22px 0 24px;font-weight:650}.hero p{max-width:620px;font-size:18px;color:#415d53}.hero-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid var(--ink);font-weight:700;background:var(--ink);color:white}.btn.light{background:rgba(255,255,255,.72);color:var(--ink)}.specimen{position:absolute;bottom:0;left:0;right:0;z-index:3;border-top:1px solid rgba(20,52,43,.15);background:rgba(255,255,255,.75);backdrop-filter:blur(15px)}.specimen .inner{max-width:var(--max);margin:auto;display:grid;grid-template-columns:repeat(4,1fr)}.datum{padding:18px 24px;border-right:1px solid var(--line)}.datum:last-child{border-right:0}.datum small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase}.datum b{font-size:15px}
.band{max-width:var(--max);margin:auto;padding:92px 24px}.section-head{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end;margin-bottom:42px}.section-head h2{font-family:"Noto Serif SC",serif;font-size:clamp(34px,4vw,58px);line-height:1.15;margin:0}.section-head p{margin:0;color:var(--muted)}.routes{border-top:1px solid var(--ink)}.route{display:grid;grid-template-columns:80px 1fr minmax(280px,430px) 28px;gap:24px;align-items:center;padding:27px 0;border-bottom:1px solid var(--line)}.route .num{color:var(--coral);font-weight:800}.route h3{font-size:23px;margin:0}.route p{margin:0;color:var(--muted)}.route .arrow{font-size:24px}.route:hover h3{color:var(--leaf)}
.atlas{background:#153f32;color:#eef8f1}.atlas .band{padding-top:108px;padding-bottom:108px}.atlas .section-head p{color:#bad2c6}.network-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px}.network-map{min-height:430px;position:relative;border:1px solid rgba(255,255,255,.2);background:radial-gradient(circle at 60% 45%,rgba(116,192,139,.22),transparent 40%)}.node{position:absolute;width:18px;height:18px;border:3px solid #d9f6df;border-radius:50%;background:var(--coral);box-shadow:0 0 0 7px rgba(255,255,255,.06)}.node:after{content:"";position:absolute;width:120px;border-top:1px solid rgba(255,255,255,.35);transform-origin:left;top:6px;left:12px}.n1{left:16%;top:26%}.n1:after{transform:rotate(18deg)}.n2{left:48%;top:42%;background:var(--amber)}.n2:after{transform:rotate(-38deg);width:145px}.n3{left:74%;top:20%;background:#74c08b}.n3:after{transform:rotate(72deg);width:170px}.n4{left:70%;top:73%}.n4:after{transform:rotate(170deg);width:180px}.n5{left:30%;top:72%;background:#74c08b}.map-label{position:absolute;font-size:12px;color:#d8e9df}.l1{left:8%;top:16%}.l2{left:43%;top:32%}.l3{right:8%;top:10%}.l4{right:9%;bottom:12%}.l5{left:20%;bottom:13%}.atlas-notes{display:flex;flex-direction:column;justify-content:center}.atlas-note{padding:22px 0;border-bottom:1px solid rgba(255,255,255,.18)}.atlas-note small{color:#8dcda3}.atlas-note h3{margin:4px 0 6px;font-size:21px}.atlas-note p{margin:0;color:#bad2c6}
.device-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:white}.device{padding:29px;border-right:1px solid var(--line)}.device:last-child{border:0}.device b{display:block;font-size:20px}.device span{display:block;color:var(--muted);margin:10px 0 20px}.device a{color:var(--leaf);font-weight:700}
.symptoms{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}.symptom{background:var(--paper);padding:32px;min-height:180px}.symptom small{color:var(--coral);font-weight:800}.symptom h3{font-size:22px;margin:12px 0 8px}.symptom p{margin:0;color:var(--muted)}
.journal{display:grid;grid-template-columns:1.3fr .7fr;gap:44px}.feature-article{border-top:4px solid var(--leaf);padding-top:26px}.feature-article h3{font-family:"Noto Serif SC",serif;font-size:38px;line-height:1.25;margin:12px 0}.feature-article p{color:var(--muted)}.article-stack{border-top:1px solid var(--ink)}.article-link{display:block;padding:18px 0;border-bottom:1px solid var(--line)}.article-link small{color:var(--leaf)}.article-link b{display:block;margin-top:5px}.article-link:hover b{color:var(--coral)}
.page-hero{padding:96px 24px 60px;max-width:var(--max);margin:auto}.crumb{font-size:13px;color:var(--muted)}.page-hero h1{font-size:clamp(40px,5vw,68px);margin:28px 0 20px;max-width:900px}.page-hero p{max-width:760px;font-size:18px;color:var(--muted)}.prose-wrap{max-width:var(--max);margin:auto;padding:0 24px 100px;display:grid;grid-template-columns:minmax(0,760px) 260px;gap:90px}.prose h2{font-family:"Noto Serif SC",serif;font-size:32px;line-height:1.25;margin:58px 0 18px}.prose h2:first-child{margin-top:0}.prose p{font-size:17px;margin:0 0 18px}.prose .lead{font-size:21px;color:#3f5c51}.side{position:sticky;top:100px;align-self:start;border-top:3px solid var(--amber);padding-top:18px}.side b{display:block;margin-bottom:14px}.side a{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}.article-list{max-width:1050px;margin:auto;padding:0 24px 100px}.article-row{display:grid;grid-template-columns:150px 1fr;gap:40px;padding:34px 0;border-top:1px solid var(--line)}.article-row time{color:var(--muted);font-size:13px}.article-row h2{font-size:27px;margin:0 0 10px}.article-row p{margin:0;color:var(--muted)}.article-row:hover h2{color:var(--leaf)}
.footer{background:#102b23;color:#dbe9e1;padding:64px 24px 28px}.footer-inner{max-width:var(--max);margin:auto}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}.footer p,.footer a{color:#a9c0b5;font-size:14px}.footer a{display:block;margin:9px 0}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:50px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:#91aa9e}
@media(max-width:820px){.bar{min-height:62px}.nav{display:none;position:absolute;left:16px;right:16px;top:68px;background:white;padding:20px;box-shadow:0 18px 35px rgba(20,52,43,.14);flex-direction:column}.nav.open{display:flex}.menu{display:block}.hero{min-height:730px;align-items:start}.hero-media img{object-position:63% center}.hero-media:after{background:linear-gradient(180deg,rgba(248,251,248,.96) 0%,rgba(248,251,248,.78) 55%,rgba(248,251,248,.25) 100%)}.hero-copy{padding-top:76px}.hero-copy h1{font-size:48px;max-width:520px}.hero p{font-size:16px;max-width:500px}.specimen .inner{grid-template-columns:1fr 1fr}.datum{padding:12px 16px}.section-head,.network-grid,.journal,.prose-wrap{grid-template-columns:1fr}.section-head{gap:18px}.route{grid-template-columns:44px 1fr 24px}.route p{grid-column:2/4}.device-strip{grid-template-columns:1fr 1fr}.device:nth-child(2){border-right:0}.device:nth-child(-n+2){border-bottom:1px solid var(--line)}.symptoms{grid-template-columns:1fr}.side{position:static}.footer-grid{grid-template-columns:1fr 1fr}.article-row{grid-template-columns:1fr;gap:8px}}
@media(max-width:520px){.bar{padding:0 16px}.brand span{font-size:14px}.hero-copy{width:calc(100% - 32px)}.hero-copy h1{font-size:42px}.hero-links{display:grid;grid-template-columns:1fr 1fr}.btn{padding:0 12px}.specimen .inner{grid-template-columns:1fr 1fr}.datum:nth-child(2){border-right:0}.band{padding:68px 18px}.route{padding:23px 0}.route h3{font-size:20px}.device-strip{grid-template-columns:1fr}.device{border-right:0;border-bottom:1px solid var(--line)!important}.network-map{min-height:340px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.page-hero{padding:72px 18px 48px}.prose-wrap,.article-list{padding-left:18px;padding-right:18px}.article-row h2{font-size:23px}}