/* Suanlink 宣传页样式。历史上分 V2 → V2.6 多轮叠加，此文件按原级联顺序保留，
   已删除不再被 index.html 引用的规则。 */
:root{--bg:#090b0a;--panel:#0d100e;--text:#f0f2ed;--muted:#8d958d;--line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.22);--accent:#5ec743;--accent-soft:rgba(94,199,67,.12);--max:1440px;--pad:clamp(22px,4vw,64px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.45}
a{color:inherit;text-decoration:none}
button{font:inherit}
::selection{background:var(--accent);color:#081006}
.site{min-height:100vh;background:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px),var(--bg);background-size:72px 72px}
.wrap{width:min(calc(100% - var(--pad)*2),var(--max));margin:auto}
.mono{font-family:"SFMono-Regular",Menlo,Consolas,monospace;letter-spacing:.08em;text-transform:uppercase}
.muted{color:var(--muted)}
.topbar{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px);background:rgba(9,11,10,.82);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:12px;min-width:245px}
.logo img{width:150px;height:auto;filter:brightness(0) invert(1);opacity:.96}
.logo .tag{font-size:10px;color:var(--muted);padding-left:12px;border-left:1px solid var(--line)}
.navlinks{margin-left:auto;display:flex;gap:30px;font-size:13px;color:#cdd2cc}
.navlinks a{position:relative}
.navlinks a:before{content:attr(data-i);font-family:Menlo,monospace;color:var(--muted);font-size:9px;position:absolute;top:-13px;left:0}
.navcta{margin-left:8px;border-left:1px solid var(--line);padding-left:28px;font-size:13px;white-space:nowrap}
.navcta span{color:var(--accent)}
.hero{min-height:calc(100vh - 78px);display:grid;grid-template-columns:7fr 5fr;border-bottom:1px solid var(--line)}
.hero-main{padding:56px 0 48px;padding-right:6vw;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between}
.kicker{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#aeb5ae}
.kicker .live{color:var(--accent)}
.hero h1{font-size:clamp(64px,8.6vw,148px);line-height:.84;letter-spacing:-.065em;font-weight:560;margin:68px 0 30px;max-width:1050px}
.hero h1 em{font-style:normal;color:var(--accent)}
.lede{font-size:clamp(18px,1.45vw,24px);max-width:710px;color:#c8cec7;line-height:1.55}
.hero-actions{display:flex;gap:12px;margin-top:34px}
.btn{min-height:48px;padding:0 20px;border:1px solid var(--line-strong);display:inline-flex;align-items:center;justify-content:space-between;gap:30px;font-size:13px;min-width:165px;transition:.2s;background:transparent}
.btn:hover{border-color:var(--accent);background:var(--accent-soft)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#071006;font-weight:650}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.mini{padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:112px}
.mini b{font-size:27px;font-weight:520;display:block;margin-top:22px}
.mini small{color:var(--muted);font-size:10px}
.section{border-bottom:1px solid var(--line);padding:110px 0}
.sec-head{display:grid;grid-template-columns:3fr 9fr;gap:40px;margin-bottom:62px}
.sec-mark{font-size:10px;color:var(--muted)}
.sec-title{font-size:clamp(40px,5vw,78px);line-height:.98;letter-spacing:-.055em;font-weight:520;margin:0;max-width:950px}
.sec-title .accent{color:var(--accent)}
.sec-desc{max-width:700px;color:#b9c0b9;margin-top:22px;font-size:17px}
.resource-toolbar{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px}
.resource-note{font-size:10px;color:var(--muted)}
.gpu-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.gpu-card{min-height:430px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;transition:.25s;background:rgba(255,255,255,.004)}
.gpu-card:hover{background:rgba(94,199,67,.045)}
.card-top{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}
.status{color:var(--accent)}
.gpu-name{font-size:50px;line-height:.9;letter-spacing:-.055em;margin:46px 0 50px}
.feature-code{font-size:10px;color:var(--muted)}
.hot-section{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.hot-copy,.hot-demo{padding:38px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:510px}
.hot-copy h3{font-size:48px;line-height:1;letter-spacing:-.05em;font-weight:520;margin:70px 0 24px}
.hot-copy p{color:#b5bcb5;max-width:550px;font-size:16px}
.switch-row{margin-top:85px;border-top:1px solid var(--line)}
.switch-line{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-bottom:1px solid var(--line);font-size:12px}
.switch{width:48px;height:26px;border:1px solid var(--line-strong);position:relative;cursor:pointer;background:#101210}
.switch:after{content:"";width:18px;height:18px;background:#7d857d;position:absolute;left:3px;top:3px;transition:.25s}
.switch.on{background:var(--accent-soft);border-color:var(--accent)}
.switch.on:after{left:25px;background:var(--accent)}
.demo-screen{height:100%;border:1px solid var(--line);padding:20px;display:flex;flex-direction:column;background:#090b0a}
.demo-head{display:flex;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);font-size:9px;color:var(--muted)}
.demo-node{padding:24px 0;border-bottom:1px solid var(--line)}
.demo-node .row{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px}
.demo-node h4{font-size:26px;margin:0;font-weight:520}
.pill{font-size:9px;border:1px solid var(--line);padding:6px 8px;color:var(--muted)}
.cost{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.cost>div{background:var(--bg);padding:18px}
.cost b{font-size:30px;font-weight:520;display:block;margin-top:16px}
.cost span{font-size:9px;color:var(--muted)}
.scenarios{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.scenario{min-height:330px;padding:26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:70px 1fr;gap:20px}
.scenario .n{font-size:12px;color:var(--accent)}
.scenario h3{font-size:31px;margin:0 0 8px;font-weight:520;letter-spacing:-.035em}
.scenario .en{font-size:9px;color:var(--muted)}
.scenario p{color:#aeb5ae;max-width:480px;margin:38px 0 22px;font-size:14px}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
.tags span{font-size:9px;border:1px solid var(--line);padding:6px 8px;color:#b9c0b9}
.org-grid{display:grid;grid-template-columns:5fr 7fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.org-copy,.org-stack{padding:32px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.org-copy h3{font-size:44px;line-height:1.04;letter-spacing:-.05em;font-weight:520;margin:50px 0 20px}
.org-copy p{color:#b5bcb5;max-width:480px}
.stack{border-top:1px solid var(--line)}
.stack-row{display:grid;grid-template-columns:60px 1fr 1fr;padding:18px 0;border-bottom:1px solid var(--line);font-size:12px}
.stack-row span:first-child{color:var(--accent);font-family:Menlo,monospace}
.stack-row span:last-child{color:var(--muted)}
.api-box{margin-top:40px;border:1px solid var(--line);padding:18px;font-family:Menlo,monospace;font-size:11px;color:#bfc6bf;background:#070908}
.api-box .g{color:var(--accent)}
.final{padding:120px 0 52px}
.final-grid{display:grid;grid-template-columns:8fr 4fr;gap:60px;align-items:end}
.final h2{font-size:clamp(60px,8vw,120px);line-height:.86;letter-spacing:-.065em;font-weight:520;margin:40px 0 28px}
.final h2 span{color:var(--accent)}
.footer{border-top:1px solid var(--line);margin-top:95px;padding:24px 0;display:flex;justify-content:space-between;gap:24px;font-size:10px;color:var(--muted)}
.fade{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease}
.fade.reveal-pending{opacity:0;transform:translateY(18px)}
.fade.in{opacity:1;transform:none}
@media(max-width:980px){
.navlinks{display:none}
.logo{min-width:0}
.navcta{margin-left:auto}
.hero{grid-template-columns:1fr}
.hero-main{border-right:0;padding-right:0}
.sec-head{grid-template-columns:1fr}
.gpu-grid,.features{grid-template-columns:1fr 1fr}
.hot-section,.org-grid,.final-grid{grid-template-columns:1fr}
.scenarios{grid-template-columns:1fr}
}
@media(max-width:640px){
:root{--pad:18px}
.nav{height:68px}
.logo img{width:120px}
.logo .tag{display:none}
.navcta{font-size:11px}
.hero h1{font-size:58px;margin-top:45px}
.metric-grid,.gpu-grid,.features{grid-template-columns:1fr}
.sec-title{font-size:44px}
.section{padding:80px 0}
.hot-copy,.hot-demo{padding:22px}
.scenario{grid-template-columns:44px 1fr}
.footer{flex-direction:column}
}
/* --- V2 revision: hero workflow / GPU ticker / core hierarchy / platform network / provider & footer --- */
.nav-provider{font-size:12px;color:#bfc6bf;white-space:nowrap;margin-left:4px}
.nav-provider:hover{color:var(--accent)}
.hero{min-height:auto}
.hero-main{padding-top:64px}
.hero h1{font-size:clamp(50px,6.5vw,104px);line-height:.93;max-width:980px;margin:72px 0 30px}
.hero-note{margin-top:13px;font-size:12px;color:var(--muted)}
.ticker{border-bottom:1px solid var(--line);background:#0b0e0c;overflow:hidden}
.ticker-shell{display:grid;grid-template-columns:auto 1fr;align-items:stretch}
.ticker-label{padding:18px var(--pad);border-right:1px solid var(--line);font-size:9px;color:var(--accent);display:flex;align-items:center;white-space:nowrap}
.ticker-window{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,black 4%,black 96%,transparent);mask-image:linear-gradient(90deg,transparent,black 4%,black 96%,transparent)}
.ticker-track{display:flex;width:max-content;animation:ticker 34s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-item{height:64px;padding:0 28px;display:flex;align-items:center;gap:12px;border-right:1px solid var(--line);white-space:nowrap}
.ticker-item b{font-size:15px;font-weight:540}
.ticker-item span{font-family:Menlo,monospace;font-size:9px;color:var(--muted);letter-spacing:.06em}
@keyframes ticker{to{transform:translateX(-50%)}}
.core-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.core-major{min-height:390px;padding:34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between}
.core-major .feature-code{font-size:9px;color:var(--muted)}
.core-major h3{font-size:clamp(34px,3.2vw,52px);line-height:1;letter-spacing:-.045em;font-weight:520;margin:28px 0 20px}
.core-major p{color:#afb6af;max-width:520px;font-size:15px;line-height:1.7}
.core-minor{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr)}
.core-minor .mini-cap{min-height:160px;padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.mini-cap .code{font-size:9px;color:var(--muted)}
.mini-cap h4{font-size:20px;font-weight:520;margin:38px 0 7px}
.mini-cap p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}
.platform-network{display:grid;grid-template-columns:1fr 1.25fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line);margin-top:8px}
.platform-col{min-height:440px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column}
.platform-col.center{background:linear-gradient(180deg,rgba(94,199,67,.08),rgba(94,199,67,.015))}
.platform-eyebrow{font-size:9px;color:var(--muted)}
.platform-col.center .platform-eyebrow{color:var(--accent)}
.platform-col h3{font-size:32px;line-height:1.08;letter-spacing:-.04em;font-weight:520;margin:32px 0}
.platform-list{margin-top:auto;border-top:1px solid var(--line)}
.platform-row{padding:13px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;font-size:13px}
.platform-row span:last-child{color:var(--muted);font-family:Menlo,monospace;font-size:9px}
.network-arrow{color:var(--accent)}
.provider-banner{border-bottom:1px solid var(--line);padding:0}
.provider-inner{display:grid;grid-template-columns:3fr 6fr 3fr;align-items:stretch;border-left:1px solid var(--line)}
.provider-meta,.provider-copy,.provider-action{padding:34px;border-right:1px solid var(--line)}
.provider-meta{font-size:9px;color:var(--muted)}
.provider-copy h3{font-size:clamp(28px,3vw,48px);line-height:1.05;letter-spacing:-.04em;font-weight:520;margin:0 0 12px}
.provider-copy p{margin:0;color:var(--muted);max-width:680px}
.provider-action{display:flex;align-items:center}
.provider-action .btn{width:100%}
.footer{align-items:flex-start;padding:34px 0 28px}
.footer-brand{max-width:360px}
.footer-groups{display:flex;gap:70px}
.footer-group{display:flex;flex-direction:column;gap:9px}
.footer-group b{font-size:10px;color:#cbd1cb;font-weight:500;margin-bottom:4px}
.footer-group a{font-size:11px;color:var(--muted)}
.footer-group a:hover{color:var(--accent)}
.footer-meta{text-align:right;max-width:320px}
@media(max-width:980px){
.nav-provider{display:none}
.ticker-shell{grid-template-columns:1fr}
.ticker-label{border-right:0;border-bottom:1px solid var(--line);padding:12px var(--pad)}
.core-minor{grid-template-columns:1fr 1fr}
.platform-network,.provider-inner{grid-template-columns:1fr}
.platform-col{min-height:auto}
.footer-groups{gap:30px}
}
@media(max-width:640px){
.hero h1{font-size:48px}
.core-grid{grid-template-columns:1fr}
.core-minor{grid-template-columns:1fr;grid-column:1}
.core-major{min-height:320px}
.footer-groups{display:grid;grid-template-columns:1fr 1fr}
.footer-meta{text-align:left}
.ticker-item{height:58px;padding:0 20px}
}
/* --- V2.1 content lock: shorter hero / KPI grid / normalized GPU ticker --- */
.hero h1{font-size:clamp(46px,5.35vw,82px);line-height:.94;max-width:none;letter-spacing:-.055em}
.hero-kpis{margin-top:48px;max-width:760px}
.hero-kpis .mini{min-height:124px;padding:18px 20px}
.hero-kpis .mini b{font-size:32px;letter-spacing:-.035em;margin-top:20px}
.hero-kpis .mini b small{display:inline;font-size:12px;margin-left:4px;color:var(--muted);font-weight:450;letter-spacing:0}
.hero-kpis .mini>small:last-child{display:block;margin-top:8px}
@media(max-width:1080px){
.hero h1{font-size:clamp(46px,6.3vw,70px)}
.hero-kpis{max-width:none}
}
@media(max-width:640px){
.hero h1{font-size:clamp(34px,12vw,48px);line-height:.98}
.hero-kpis{grid-template-columns:1fr 1fr;margin-top:34px}
.hero-kpis .mini{min-height:108px;padding:14px}
.hero-kpis .mini b{font-size:27px;margin-top:14px}
}
/* --- V2.2 structure & content revision --- */
.hero{position:relative;display:block;min-height:730px;overflow:hidden}
.hero-main{position:relative;z-index:2;border-right:0;padding-right:0;width:min(72%,980px);min-height:730px}
.hero:before{content:"";position:absolute;inset:0;z-index:0;background:radial-gradient(circle at 78% 32%,rgba(94,199,67,.12),transparent 24%),radial-gradient(circle at 88% 78%,rgba(94,199,67,.065),transparent 20%);pointer-events:none}
.hero-art{position:absolute;z-index:1;right:-3%;top:62px;width:47%;height:610px;opacity:.92;pointer-events:none;-webkit-mask-image:linear-gradient(90deg,transparent 0%,black 22%,black 90%,transparent 100%);mask-image:linear-gradient(90deg,transparent 0%,black 22%,black 90%,transparent 100%)}
.hero-art-plane{position:absolute;inset:34px 20px 72px 30px;border:1px solid rgba(255,255,255,.08);background:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),radial-gradient(circle at 54% 48%,rgba(94,199,67,.10),transparent 36%);background-size:38px 38px,38px 38px,auto;transform:perspective(900px) rotateY(-18deg) rotateX(7deg) rotateZ(-2deg);transform-origin:center;box-shadow:0 0 80px rgba(94,199,67,.035) inset}
.hero-art-plane:before,.hero-art-plane:after{content:"";position:absolute;border:1px solid rgba(94,199,67,.26)}
.hero-art-plane:before{width:38%;height:42%;right:16%;top:19%;box-shadow:0 0 60px rgba(94,199,67,.07)}
.hero-art-plane:after{width:18%;height:20%;left:15%;bottom:17%;border-color:rgba(255,255,255,.14)}
.hero-art .node{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 18px rgba(94,199,67,.7)}
.hero-art .n1{left:13%;top:20%}
.hero-art .n2{left:37%;top:35%}
.hero-art .n3{left:67%;top:22%}
.hero-art .n4{left:79%;top:57%}
.hero-art .n5{left:50%;top:71%}
.hero-art .n6{left:24%;top:67%}
.hero-art .n7{left:62%;top:48%}
.hero-art-word{position:absolute;right:5%;bottom:24px;font-size:clamp(40px,5.5vw,84px);letter-spacing:-.06em;color:rgba(255,255,255,.035);white-space:nowrap}
.hero-kpis{max-width:820px}
.hero-kpis .mini:first-child b{color:var(--accent)}
.core-flow{margin-top:34px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch}
.core-flow-state{padding:18px 12px;min-height:118px;display:flex;flex-direction:column;justify-content:center}
.core-flow-state span{font-size:9px;color:var(--muted)}
.core-flow-state b{font-size:20px;font-weight:520;margin:8px 0 4px}
.core-flow-state small{font-size:11px;color:var(--muted)}
.core-flow-state.active{background:var(--accent-soft);border-left:1px solid rgba(94,199,67,.32);border-right:1px solid rgba(94,199,67,.32)}
.core-flow-state.active b{color:var(--accent)}
.core-flow-arrow{display:flex;align-items:center;padding:0 9px;color:#707870}
.core-flow-note{grid-column:1/-1;border-top:1px solid var(--line);padding:10px 12px;font-size:8px;color:var(--muted);letter-spacing:.11em}
.billing-formula{margin-top:34px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.billing-label{font-size:9px;color:var(--muted)}
.billing-equation{font-size:clamp(26px,2.8vw,42px);line-height:1.08;letter-spacing:-.035em;color:var(--accent);margin:20px 0 18px}
.billing-example{font-size:13px;color:#adb4ad}
.billing-example b{font-weight:520;color:var(--text)}
@media(max-width:1100px){
.hero-main{width:78%}
.hero-art{width:43%;opacity:.68}
}
@media(max-width:980px){
.hero{min-height:auto}
.hero-main{width:100%;min-height:auto;padding-bottom:54px}
.hero-art{opacity:.22;width:70%;right:-22%;top:80px}
.hero-kpis{max-width:none}
}
@media(max-width:640px){
.hero-art{display:none}
.core-flow{grid-template-columns:1fr}
.core-flow-arrow{justify-content:center;padding:7px;transform:rotate(90deg)}
.core-flow-note{grid-column:1}
.billing-equation{font-size:27px}
}
/* --- V2.4 revisions: numeric hero KPIs / reordered demo / harmonized resource pool card --- */
.pool-card{background:rgba(255,255,255,.002);}
.pool-card:hover{background:rgba(255,255,255,.015);}
.pool-card .gpu-name{font-size:44px;color:#c0c7c0;font-weight:480;letter-spacing:-.045em;}
.pool-card .pool-status{color:var(--muted);}
/* --- V2.5 conversion, clickable resources, hot-swap billing demo, mobile menu --- */
.mobile-menu-toggle{display:none;margin-left:auto;background:transparent;border:1px solid var(--line);color:#d7ddd7;padding:9px 11px;font-size:10px;letter-spacing:.08em;cursor:pointer}
.mobile-menu-toggle span{color:var(--accent);margin-left:7px}
.mobile-menu{display:none;position:absolute;left:0;right:0;top:78px;background:rgba(9,11,10,.98);border-bottom:1px solid var(--line);padding:10px var(--pad) 18px}
.mobile-menu.open{display:grid}
.mobile-menu a{display:flex;gap:18px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}
.mobile-menu a span{font-family:Menlo,monospace;font-size:9px;color:var(--muted)}
.gpu-card{color:inherit;text-decoration:none;cursor:pointer}
.gpu-card:focus-visible{outline:1px solid var(--accent);outline-offset:-1px}
.gpu-card:hover .price-action span{transform:translateX(4px);color:var(--accent)}
.pool-card .gpu-name small{font-size:14px;font-weight:450;letter-spacing:0;color:var(--muted);margin-left:5px}
.demo-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;gap:8px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:9px;color:var(--muted)}
.demo-flow span{padding:7px 5px;border:1px solid transparent;text-align:center;transition:.2s}
.demo-flow span.active{border-color:rgba(94,199,67,.45);background:var(--accent-soft);color:#dce6dc}
.demo-flow i{font-style:normal;color:#536053}
.task-metrics{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-bottom:0;margin-top:auto}
.task-metrics>div{padding:14px 16px}
.task-metrics>div+div{border-left:1px solid var(--line)}
.task-metrics span{display:block;font-size:9px;color:var(--muted)}
.task-metrics b{display:block;margin-top:8px;font-size:20px;font-weight:520}
.footer-legal{display:flex;justify-content:flex-end;gap:14px;margin-top:14px}
.footer-legal a{color:var(--muted)}
.footer-legal a:hover{color:var(--text)}
@media(max-width:980px){
.mobile-menu-toggle{display:block}
.navcta{margin-left:0}
.topbar{position:sticky}
.hero-actions{flex-wrap:wrap}
.hero-actions .btn{flex:1;min-width:190px}
.footer-legal{justify-content:flex-start}
.demo-flow{font-size:8px}
}
@media(max-width:640px){
.nav{gap:10px}
.mobile-menu{top:68px}
.mobile-menu-toggle{padding:8px 9px}
.navcta{padding-left:10px;border-left:0}
.navcta span{display:none}
.demo-flow{grid-template-columns:1fr;gap:4px}
.demo-flow i{transform:rotate(90deg);text-align:center}
.task-metrics{grid-template-columns:1fr}
.task-metrics>div+div{border-left:0;border-top:1px solid var(--line)}
.footer-legal{flex-wrap:wrap}
}
/* --- V2.6 refinement: conversion clarity, fewer borders, more whitespace --- */
.kicker{font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;letter-spacing:0;text-transform:none;font-size:12px;color:#c7cdc6}
.kicker .live{font-weight:520;color:var(--accent)}
/* Use borders only where they explain system structure. */
.section{border-bottom:0;padding-top:118px;padding-bottom:118px}
.sec-head{margin-bottom:70px}
/* Core: one outer system frame, far fewer internal cell borders */
.core-grid{border:1px solid var(--line);background:transparent}
.core-major{border:0;min-height:405px;padding:38px}
.core-major:first-child{border-right:1px solid var(--line)}
.core-minor{border-top:1px solid var(--line);padding:28px 34px;gap:34px}
.core-minor .mini-cap{border:0;min-height:130px;padding:0}
.mini-cap h4{margin-top:28px}
.billing-formula{margin-top:28px;padding:22px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.billing-equation{font-size:clamp(25px,2.2vw,38px);letter-spacing:-.035em;color:var(--accent);margin:10px 0 9px}
.billing-example{font-size:12px;color:#aeb6ae}
/* Hot-swap is intentionally denser because it represents system state. */
.hot-section{border:1px solid var(--line);border-left:1px solid var(--line);border-top:1px solid var(--line)}
.hot-copy,.hot-demo{border:0}
.hot-copy{border-right:1px solid var(--line)}
.demo-hint{margin-top:50px;color:var(--accent);font-size:9px}
.switch-row{margin-top:18px}
/* Resources: product cards breathe; internal grid lines are removed. */
.resource-toolbar{align-items:end;margin-bottom:28px}
.gpu-grid{border:0;gap:18px}
.gpu-card{border:1px solid var(--line);min-height:445px;padding:28px;border-radius:0;background:rgba(255,255,255,.008)}
.gpu-card:hover{border-color:rgba(94,199,67,.6);background:rgba(94,199,67,.035);transform:translateY(-2px)}
.gpu-name{margin:48px 0 46px}
.pool-card{background:rgba(255,255,255,.004)}
.pool-card .gpu-name{color:#dce1db}
.pool-card .gpu-name small{color:var(--muted)}
/* Organization: turn the right side into a clean list, not a spreadsheet. */
.org-grid{border:1px solid var(--line)}
.org-copy,.org-stack{border:0;padding:40px}
.org-copy{border-right:1px solid var(--line)}
.stack{border:0;display:flex;flex-direction:column;gap:5px}
.stack-row{border:0;padding:13px 0;grid-template-columns:48px 1.05fr 1fr}
.stack-row+ .stack-row{border-top:1px solid rgba(255,255,255,.055)}
.org-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.org-actions .btn{min-width:170px}
.org-stack .api-box{border-color:rgba(255,255,255,.08)}
/* Platform: retain one outer network frame; remove row-by-row table borders. */
.platform-network{border:1px solid var(--line)}
.platform-col{border:0;padding:36px;min-height:460px}
.platform-col.center{border-left:1px solid var(--line);border-right:1px solid var(--line)}
.platform-list{border:0;margin-top:auto;display:flex;flex-direction:column;gap:13px}
.platform-row{border:0;padding:0;font-size:13px}
/* Provider only needs horizontal separation, not a cell frame. */
.provider-banner{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
.provider-inner{border:0;gap:34px}
.provider-meta,.provider-copy,.provider-action{border:0;padding:28px 0}
@media(max-width:980px){
.core-major:first-child,.hot-copy,.org-copy,.platform-col.center{border-right:0;border-left:0}
.core-major:first-child,.hot-copy,.org-copy{border-bottom:1px solid var(--line)}
.platform-col.center{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.gpu-grid{grid-template-columns:1fr 1fr}
.pool-card{grid-column:1/-1}
}
@media(max-width:640px){
.section{padding-top:82px;padding-bottom:82px}
.gpu-grid{grid-template-columns:1fr}
.pool-card{grid-column:auto}
.core-minor{padding:26px;gap:28px}
.org-copy,.org-stack,.platform-col{padding:26px}
.resource-toolbar{align-items:flex-start;flex-direction:column}
.kicker{flex-direction:column;gap:6px}
}
/* Focused fidelity fixes: semantic hero lines and explicit demo billing. */
.hero h1 .hero-line{display:block;white-space:nowrap;line-height:1.08}
.hero h1 .hero-line+.hero-line{margin-top:.08em}
.switch{display:block;padding:0;flex-shrink:0;border-radius:0}
.switch:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.task-metrics span,.cost>div>span{font-size:11px;letter-spacing:.02em}
.cost b small{font-size:12px;font-weight:400;color:var(--muted);margin-left:5px;white-space:nowrap}
.cost b #gpuRateValue{font-size:inherit;color:inherit}
.demo-note{font-size:11px;line-height:1.7;color:var(--muted);margin:14px 0 0}
.hot-copy,.hot-demo,.demo-screen{min-width:0}
.demo-screen .api-box{overflow-wrap:anywhere}
@media(max-width:640px){
.demo-head{flex-wrap:wrap;gap:8px}
.demo-node .row{flex-wrap:wrap;gap:12px}
.demo-node h4{overflow-wrap:anywhere}
.cost{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:380px){
.hero h1{font-size:clamp(34px,11.5vw,43px)}
}
/* Resource typography and footer: one authoritative set of rules. */
.resource-hot .mono{font-size:10px;color:var(--accent);margin-bottom:0}
.spec-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:30px;row-gap:20px;margin-bottom:30px;border:0}
.spec{border:0;padding:0;font-size:13px;min-width:0}
.spec span{display:block;color:var(--muted);font-size:11px;margin-bottom:7px}
.price{margin-top:auto;padding-top:18px;display:flex;border:0}
.price-action{width:100%;min-width:0;display:flex;align-items:center;justify-content:space-between;gap:16px}
.price-action b{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 8px;min-width:0;font-size:30px;font-weight:520;line-height:1.3}
.price-action b em{font-style:normal;font-size:12px;font-weight:400;color:var(--muted);white-space:nowrap;letter-spacing:0}
.price-action span{display:inline-block;flex-shrink:0;font-size:22px;color:var(--accent);transition:transform .2s}
.pool-card .price-action b{font-size:16px;font-weight:500;color:#c9cec9}
.gpu-card{min-width:0}
.card-top{gap:12px;flex-wrap:wrap}
.gpu-grid+.resource-note{font-size:12px;line-height:1.7}
/* Optional developer detail stays with the API capability, not the team offering. */
.core-api{grid-column:1/-1;border-top:1px solid var(--line);min-width:0}
.core-api summary{list-style:none;cursor:pointer;padding:20px 34px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted)}
.core-api summary::-webkit-details-marker{display:none}
.core-api summary:hover{color:var(--text)}
.api-disclosure{font-size:22px;color:var(--accent);transition:transform .2s}
.core-api[open] .api-disclosure{transform:rotate(45deg)}
.core-api-body{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:0 34px 28px}
.core-api-body p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;max-width:440px}
.core-api-body .api-box{margin:0;font-size:12px;line-height:1.7;min-width:0;white-space:pre-wrap;overflow-wrap:anywhere;border-color:var(--line)}
/* Navigation, focus, and breakpoint fixes preserve the existing visual system. */
.org-heading-part{display:inline-block;white-space:nowrap}
html{overflow-x:hidden}
html{scroll-padding-top:96px}
.mobile-menu{top:100%}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
section[tabindex="-1"]:focus{outline:none}
@media(max-width:980px){
.core-grid{grid-template-columns:minmax(0,1fr)}
.core-api-body{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:640px){
html{scroll-padding-top:84px}
.sec-title{font-size:clamp(30px,9.4vw,44px);line-height:1.08}
.hot-copy h3{font-size:clamp(30px,8.6vw,40px);line-height:1.08}
.final h2{font-size:clamp(36px,10.5vw,60px);line-height:1}
.core-api summary{padding:18px 26px}
.core-api-body{padding:0 26px 26px;gap:20px}
.org-copy h3{font-size:30px;line-height:1.16}
.stack-row{grid-template-columns:28px minmax(0,1fr);gap:4px 10px}
.stack-row span:last-child{grid-column:2}
}
@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
.ticker-track,.wf-pulse{animation:none}
.fade,.fade.reveal-pending{opacity:1;transform:none;transition:none}
.btn,.gpu-card,.price-action span,.switch:after,.api-disclosure{transition:none}
.gpu-card:hover{transform:none}
}