:root{--ink:#0b1716;--paper:#f3f6f2;--white:#fff;--mint:#62e5bd;--green:#147d61;--line:#cad5cf;--muted:#66736f;--dark:#071310;--amber:#f0a84b;--max:1240px;--radius:6px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;letter-spacing:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit}
.shell{width:min(var(--max),calc(100% - 48px));margin:auto}
.topbar{height:66px;background:rgba(248,251,248,.95);border-bottom:1px solid #cfd8d3;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}
.topbar .shell{height:100%;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:9px;font-weight:760;font-size:15px;margin-right:auto}
.brand-mark{width:27px;height:27px;border:1px solid #7f938b;display:grid;place-items:center;background:#e4f8ef;color:#08765a;font:700 10px/1 monospace}
.nav{display:flex;gap:25px;align-items:center;font-size:13px;color:#3e4b47}
.nav a:hover{color:#08765a}
.top-actions{display:flex;gap:8px}
.mini-btn,.solid-btn,.line-btn{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 17px;border:1px solid #1d302a;border-radius:4px;font-weight:700;font-size:13px}
.solid-btn{background:#11795d;color:#fff;border-color:#11795d}
.line-btn{background:transparent;color:inherit}
.mini-btn{background:#fff}
.menu{display:none;border:0;background:none;font-size:21px}
.hero{min-height:665px;color:#fff;position:relative;display:flex;align-items:center;background:#030908;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,9,8,.96) 0%,rgba(2,9,8,.88) 25%,rgba(2,9,8,.18) 62%,rgba(2,9,8,.08) 100%),url("/assets/mitce-capillary-lab.webp") center/cover no-repeat}
.hero-copy{position:relative;z-index:2;width:min(620px,52vw);padding:86px 0 104px}
.eyebrow,.kicker{font:700 11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;color:#55deb5}
.hero h1{font-size:clamp(48px,5.6vw,84px);line-height:1.03;margin:18px 0 23px;letter-spacing:0;max-width:760px}
.hero p{max-width:590px;color:#d8e2de;font-size:17px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .solid-btn,.hero .line-btn{min-height:48px;padding:0 22px}
.hero .line-btn{border-color:#9bb0a8;color:#fff;background:rgba(0,0,0,.18)}
.trace-strip{position:absolute;z-index:2;left:0;right:0;bottom:0;border-top:1px solid rgba(109,230,192,.36);height:66px;background:rgba(2,11,9,.82)}
.trace-strip .shell{height:100%;display:grid;grid-template-columns:160px 1fr 160px;align-items:center;gap:24px}
.trace-label{font:700 11px/1.3 monospace;color:#62e5bd}
.trace-line{height:28px;background:linear-gradient(90deg,transparent 0 2%,#3fd8b1 2.2% 2.35%,transparent 2.55% 8%,#3fd8b1 8.2% 8.4%,transparent 8.6% 15%,#3fd8b1 15.2% 15.5%,transparent 15.7% 22%,#3fd8b1 22.1% 22.4%,transparent 22.6% 35%,#3fd8b1 35.1% 35.8%,transparent 36% 44%,#3fd8b1 44.1% 44.3%,transparent 44.5% 59%,#3fd8b1 59.1% 59.7%,transparent 59.9% 72%,#3fd8b1 72.1% 72.4%,transparent 72.6% 85%,#3fd8b1 85.1% 85.8%,transparent 86%);clip-path:polygon(0 72%,2% 72%,2.2% 5%,2.5% 72%,8% 72%,8.3% 35%,8.6% 72%,15% 72%,15.4% 0,15.8% 72%,22% 72%,22.3% 28%,22.7% 72%,35% 72%,35.4% 8%,36% 72%,44% 72%,44.3% 42%,44.6% 72%,59% 72%,59.5% 3%,60% 72%,72% 72%,72.3% 32%,72.7% 72%,85% 72%,85.5% 12%,86% 72%,100% 72%,100% 100%,0 100%)}
.trace-value{text-align:right;font:600 11px/1.5 monospace;color:#b8c9c3}
.section{padding:90px 0}
.section.white{background:#fff}
.section.dark{background:var(--dark);color:#eff7f4}
.section-head{display:grid;grid-template-columns:170px minmax(0,720px);gap:28px;margin-bottom:42px}
.section-head h2{font-size:clamp(32px,4vw,54px);line-height:1.08;margin:0;letter-spacing:0}
.section-head p{grid-column:2;color:var(--muted);margin:0;max-width:680px}
.dark .section-head p{color:#aebfba}
.device-rail{border-top:1px solid #9aa9a4;border-bottom:1px solid #9aa9a4;display:grid;grid-template-columns:repeat(4,1fr)}
.device-tab{border:0;border-right:1px solid #c4cfca;background:transparent;text-align:left;padding:23px;min-height:116px;cursor:pointer;color:inherit}
.device-tab:last-child{border-right:0}
.device-tab small{display:block;font:700 10px monospace;color:#168464;margin-bottom:12px}
.device-tab strong{font-size:18px}
.device-tab.active{background:#0b1c18;color:#fff}
.device-tab.active small{color:#62e5bd}
.device-panel{display:grid;grid-template-columns:1.3fr .7fr;gap:0;border-bottom:1px solid #9aa9a4}
.device-copy{padding:38px 5% 42px 0}
.device-copy h3{font-size:28px;margin:0 0 14px}
.device-copy p{color:#56635f;max-width:660px}
.device-facts{background:#e5ece8;padding:34px;display:grid;align-content:center;gap:14px}
.fact{display:flex;justify-content:space-between;border-bottom:1px solid #bac8c1;padding-bottom:9px;font-size:13px}
.version-gate{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#30423c;border:1px solid #30423c}
.gate-intro,.gate-step{background:#0b1a16;padding:44px}
.gate-intro{min-height:330px;display:flex;flex-direction:column;justify-content:space-between}
.gate-intro h2{font-size:48px;line-height:1.05;margin:18px 0}
.gate-list{display:grid;grid-template-columns:1fr 1fr}
.gate-step{border-bottom:1px solid #30423c;min-height:165px}
.gate-step:nth-last-child(-n+2){border-bottom:0}
.gate-step b{display:block;color:#62e5bd;font:700 11px monospace;margin-bottom:18px}
.gate-step h3{font-size:18px;margin:0 0 8px}
.gate-step p{font-size:13px;color:#aebfba;margin:0}
.signal-lab{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}
.signal-notes{border-top:1px solid #aebbb6}
.signal-note{display:grid;grid-template-columns:78px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid #ccd5d1}
.signal-note b{font:700 10px monospace;color:#0a7d5e}
.signal-note h3{font-size:17px;margin:0 0 7px}
.signal-note p{margin:0;color:#64706c;font-size:14px}
.electro-panel{background:#e4ebe7;padding:40px;min-height:500px;position:relative;overflow:hidden}
.electro-grid{position:absolute;inset:0;background:linear-gradient(#c8d4ce 1px,transparent 1px),linear-gradient(90deg,#c8d4ce 1px,transparent 1px);background-size:48px 48px;opacity:.5}
.peaks{position:absolute;left:8%;right:8%;top:24%;height:240px}
.peaks svg{width:100%;height:100%;overflow:visible}
.panel-caption{position:absolute;left:40px;right:40px;bottom:34px;display:flex;justify-content:space-between;gap:24px;border-top:1px solid #95a89f;padding-top:18px;font-size:12px}
.data-chain{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid #7b8f87;border-bottom:1px solid #7b8f87}
.chain-cell{min-height:178px;padding:24px 17px;border-right:1px solid #c6d0cc}
.chain-cell:last-child{border-right:0}
.chain-cell b{display:block;font:700 11px monospace;color:#0b7c5e;margin-bottom:28px}
.chain-cell h3{font-size:16px;margin:0 0 9px}
.chain-cell p{font-size:12px;color:#60706a;margin:0}
.log-wall{display:grid;grid-template-columns:1.15fr .85fr .85fr;grid-auto-rows:minmax(190px,auto);gap:12px}
.log-card{background:#fff;border:1px solid #cbd5d0;padding:25px;display:flex;flex-direction:column}
.log-card:first-child{grid-row:span 2;background:#0b1916;color:#fff;padding:36px}
.log-card:nth-child(4){grid-column:span 2}
.log-meta{font:700 10px monospace;color:#0d8060;margin-bottom:22px}
.log-card:first-child .log-meta{color:#62e5bd}
.log-card h3{font-size:21px;line-height:1.35;margin:0 0 12px}
.log-card:first-child h3{font-size:32px}
.log-card p{color:#65716d;font-size:14px;margin:0 0 22px}
.log-card:first-child p{color:#b7c6c1}
.text-link{margin-top:auto;font-weight:700;font-size:13px}
.faq{max-width:930px;margin-left:auto}
.faq details{border-top:1px solid #aab8b2;padding:22px 0}
.faq details:last-child{border-bottom:1px solid #aab8b2}
.faq summary{cursor:pointer;font-weight:700;list-style:none}
.faq summary:after{content:"+";float:right;color:#0a7c5d;font-size:21px}
.faq details[open] summary:after{content:"−"}
.faq p{color:#5e6b67;max-width:760px}
.page-hero{padding:90px 0 70px;background:#0b1815;color:#fff;border-bottom:5px solid #4ed7ae}
.page-hero .shell{display:grid;grid-template-columns:170px minmax(0,780px);gap:28px}
.page-hero h1{font-size:clamp(38px,5vw,65px);line-height:1.06;margin:0 0 20px}
.page-hero p{font-size:17px;color:#b9c8c3;max-width:720px}
.page-hero .kicker{padding-top:9px}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:70px}
.prose h2{font-size:30px;line-height:1.25;margin:54px 0 18px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;margin:30px 0 10px}
.prose p{color:#34413d;margin:0 0 18px}
.prose ul{padding-left:20px}
.prose li{margin:8px 0}
.aside{border-left:1px solid #bdcac4;padding-left:25px}
.aside h2{font-size:15px;margin:0 0 18px}
.aside a{display:block;border-top:1px solid #d3ddd8;padding:13px 0;font-size:13px}
.method-table{width:100%;border-collapse:collapse;margin:28px 0}
.method-table th,.method-table td{text-align:left;vertical-align:top;border:1px solid #c4d0ca;padding:14px;font-size:14px}
.method-table th{background:#e5ece8}
.article-shell{width:min(900px,calc(100% - 48px));margin:auto}
.article-head{padding:82px 0 50px;border-bottom:1px solid #b7c3be}
.breadcrumbs{font-size:12px;color:#60706a;margin-bottom:30px}
.article-head h1{font-size:clamp(38px,5vw,64px);line-height:1.1;margin:0 0 20px}
.article-head .dek{font-size:19px;color:#52605b;max-width:760px}
.article-head time{display:block;font:700 11px monospace;color:#087a5c;margin-top:25px}
.article-body{padding:56px 0 80px}
.article-body h2{font-size:29px;line-height:1.25;margin:52px 0 18px}
.article-body p{font-family:"Noto Serif SC","Songti SC",serif;font-size:17px;line-height:1.95;color:#26332f;margin:0 0 20px}
.article-body .field-note{margin:36px 0;padding:22px 25px;border-left:4px solid #168261;background:#e8efeb}
.article-body .field-note b{display:block;margin-bottom:8px}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:14px}
.article-body td,.article-body th{padding:13px;border:1px solid #bdcac4;text-align:left;vertical-align:top}
.article-body th{background:#0c1b17;color:#fff}
.related{border-top:1px solid #aebbb5;padding:38px 0 80px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.related a{border:1px solid #c4d0ca;padding:20px;background:#fff;font-weight:700}
.footer{background:#06110e;color:#dbe6e2;padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:50px}
.footer strong{display:block;font-size:16px;margin:0 0 15px;color:#eef7f3}
.footer p,.footer a{font-size:12px;color:#9eb0aa;display:block;margin:8px 0}
.copyright{border-top:1px solid #263832;margin-top:40px;padding-top:18px;font-size:11px;color:#81958e}
@media(max-width:900px){
 .shell{width:min(100% - 32px,var(--max))}.nav{display:none}.menu{display:block}.top-actions .mini-btn{display:none}
 .hero{min-height:690px;align-items:flex-start}.hero:before{background:linear-gradient(180deg,rgba(2,9,8,.92) 0%,rgba(2,9,8,.74) 50%,rgba(2,9,8,.45) 100%),url("/assets/mitce-capillary-lab.webp") 64% center/cover no-repeat}.hero-copy{width:100%;padding-top:80px}.hero h1{font-size:48px;max-width:600px}.trace-strip .shell{grid-template-columns:100px 1fr}.trace-value{display:none}
 .section{padding:65px 0}.section-head,.page-hero .shell{grid-template-columns:1fr;gap:14px}.section-head p{grid-column:auto}
 .device-rail{grid-template-columns:1fr 1fr}.device-tab:nth-child(2){border-right:0}.device-tab:nth-child(-n+2){border-bottom:1px solid #c4cfca}.device-panel,.version-gate,.signal-lab,.content-grid{grid-template-columns:1fr}
 .gate-list{grid-template-columns:1fr 1fr}.data-chain{grid-template-columns:1fr 1fr}.chain-cell:nth-child(2n){border-right:0}.chain-cell:nth-child(-n+4){border-bottom:1px solid #c6d0cc}
 .log-wall{grid-template-columns:1fr 1fr}.log-card:first-child{grid-row:auto;grid-column:span 2}.log-card:nth-child(4){grid-column:auto}.aside{border-left:0;border-top:1px solid #bdcac4;padding:25px 0 0}
 .footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2}
}
@media(max-width:560px){
 .shell,.article-shell{width:calc(100% - 28px)}.topbar{height:58px}.top-actions .line-btn{display:none}
 .hero{min-height:700px}.hero-copy{padding-top:62px}.hero h1{font-size:40px}.hero p{font-size:15px}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero .solid-btn,.hero .line-btn{padding:0 10px}
 .trace-strip{height:58px}.trace-strip .shell{grid-template-columns:82px 1fr;gap:10px}
 .section{padding:54px 0}.section-head h2{font-size:34px}.device-tab{padding:17px;min-height:102px}.device-panel{display:block}.device-copy{padding:30px 0}.device-facts{padding:24px}
 .version-gate{display:block}.gate-intro{min-height:260px;padding:30px}.gate-intro h2{font-size:38px}.gate-list{display:block}.gate-step{padding:27px;border-bottom:1px solid #30423c!important}
 .electro-panel{min-height:390px;padding:24px}.panel-caption{left:24px;right:24px;display:block}.data-chain{display:block}.chain-cell{border-right:0;border-bottom:1px solid #c6d0cc;min-height:auto}
 .log-wall{display:block}.log-card{margin-bottom:10px}.log-card:first-child{padding:27px}.log-card:first-child h3{font-size:27px}
 .page-hero{padding:60px 0 48px}.page-hero h1,.article-head h1{font-size:39px}.content-grid{gap:45px}.method-table{display:block;overflow-x:auto}
 .article-head{padding:60px 0 38px}.article-body{padding-top:38px}.article-body h2{font-size:25px}.article-body p{font-size:16px}.related-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}.footer-grid>div:last-child{grid-column:auto}
}