:root{
  color-scheme:dark;
  --bg:#04060c;--bg2:#070b16;--panel:rgba(13,21,38,.62);--panel2:rgba(18,28,50,.72);
  --line:rgba(130,170,230,.13);--line2:rgba(130,170,230,.26);
  --text:#e8eef7;--muted:#8a96ab;--dim:#566279;--acc:#7cd2ff;--acc2:#5a7dff;--warm:#ffc37a;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);--r:18px;--pad:clamp(20px,4vw,64px);
}
*{box-sizing:border-box}
html{background:var(--bg);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 var(--sans);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
img{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px;border-radius:6px}
::selection{background:#2b5cff66}
.mono{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;font-size:11px;color:var(--muted)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:200;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---------- 顶栏 ---------- */
.topbar{position:fixed;inset:0 0 auto 0;height:68px;z-index:90;display:flex;align-items:center;gap:22px;padding:0 var(--pad);transition:background .4s,border-color .4s,transform .5s var(--ease);border-bottom:1px solid transparent}
.topbar.solid{background:rgba(4,6,12,.72);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px);border-color:var(--line)}
.topbar.hide{transform:translateY(-100%)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.brand-mark{width:26px;height:26px;position:relative}
.brand-mark i{position:absolute;inset:0;border:1.5px solid var(--acc);border-radius:50%;animation:spin 9s linear infinite}
.brand-mark i:nth-child(2){inset:5px;border-color:var(--acc2);animation-duration:6s;animation-direction:reverse;border-style:dashed}
.brand-mark i:nth-child(3){inset:10px;background:var(--acc);border:0;box-shadow:0 0 12px var(--acc)}
@keyframes spin{to{transform:rotate(360deg)}}
.back{display:none;align-items:center;gap:8px;height:34px;padding:0 14px 0 10px;border:1px solid var(--line2);border-radius:99px;font-size:13px;color:var(--text);transition:.3s}
.back:hover{border-color:var(--acc);background:#7cd2ff12}
.back svg{transition:transform .3s var(--ease)}.back:hover svg{transform:translateX(-3px)}
body:not(.is-home) .back{display:inline-flex}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{position:relative;padding:8px 14px;font-size:14px;color:#b7c2d4;border-radius:99px;transition:color .3s}
.nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:1px;background:var(--acc);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}
.nav a:hover,.nav a.on{color:#fff}.nav a:hover::after,.nav a.on::after{transform:scaleX(1);transform-origin:left}
.me{width:36px;height:36px;border:1px solid var(--line2);border-radius:50%;display:grid;place-items:center;font-size:13px;position:relative}
.me b{position:absolute;top:-4px;right:-4px;min-width:17px;height:17px;border-radius:9px;background:var(--acc);color:#04101d;font:600 10px/17px var(--sans);text-align:center;padding:0 4px}
.menu-btn{display:none;width:36px;height:36px;border:1px solid var(--line2);border-radius:50%}
.menu-btn span{display:block;width:14px;height:1.5px;background:#fff;margin:3px auto;transition:.3s}
@media (max-width:900px){
  .nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;background:rgba(4,6,12,.96);backdrop-filter:blur(16px);padding:10px var(--pad) 24px;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .5s var(--ease);margin:0}
  .nav.open{transform:none}
  .nav a{font-size:18px;padding:14px 4px}
  .menu-btn{display:block;margin-left:auto}
  .topbar{gap:12px}
}

/* ---------- 通用 ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 24px;border-radius:99px;font-size:14.5px;font-weight:500;position:relative;overflow:hidden;transition:transform .4s var(--ease),border-color .3s,background .3s;white-space:nowrap}
.btn.primary{background:linear-gradient(120deg,#e9f6ff,#9ad9ff);color:#03111f}
.btn.primary::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,#fff9 50%,transparent 70%);transform:translateX(-120%);transition:transform .8s var(--ease)}
.btn.primary:hover::before{transform:translateX(120%)}
.btn.ghost{border:1px solid var(--line2);color:var(--text);background:#ffffff06}
.btn.ghost:hover{border-color:var(--acc);background:#7cd2ff10}
.btn.sm{height:38px;padding:0 16px;font-size:13px}
.btn .arr{transition:transform .4s var(--ease)}.btn:hover .arr{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border:1px solid var(--line2);border-radius:99px;font-size:11.5px;color:#aab6c9;white-space:nowrap}
.tag.demo{border-color:#ffc37a55;color:var(--warm);background:#ffc37a0d}
.tag.live{border-color:#7cd2ff55;color:var(--acc);background:#7cd2ff0d}
.tag.live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--acc);box-shadow:0 0 8px var(--acc)}
.chip{height:36px;padding:0 16px;border:1px solid var(--line);border-radius:99px;font-size:13px;color:#b6c1d3;transition:.3s;background:#ffffff04}
.chip:hover{border-color:var(--line2);color:#fff}
.chip.on{background:var(--text);color:#04060c;border-color:var(--text)}
.section{position:relative;padding:clamp(80px,12vw,160px) var(--pad)}
.eyebrow{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--acc)}
.h2{font-size:clamp(32px,4.6vw,68px);line-height:1.12;font-weight:500;letter-spacing:-.02em;margin:0}
.h2 em,.h1 em{font-style:normal;background:linear-gradient(100deg,#d9f2ff,#7cd2ff 45%,#6a8bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:clamp(15px,1.3vw,17px);max-width:560px;margin:22px 0 0}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);backdrop-filter:blur(10px)}

/* 揭示动画 */
.rv{opacity:0;transform:translateY(40px);transition:opacity 1s var(--ease),transform 1.1s var(--ease);transition-delay:var(--d,0s)}
.rv.in{opacity:1;transform:none}
.split .ln{display:block;overflow:hidden;padding-bottom:.06em}
.split .ln>span{display:inline-block;transform:translateY(105%);transition:transform 1.1s var(--ease);transition-delay:calc(var(--i) * .09s + var(--d,0s))}
.split.in .ln>span{transform:none}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;overflow:hidden;background:radial-gradient(1200px 700px at 70% 40%,#0b1a3a 0%,transparent 60%),radial-gradient(800px 500px at 10% 90%,#0a1430 0%,transparent 60%),var(--bg)}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-canvas.fallback{background:radial-gradient(circle at 70% 45%,#2a5cff33,transparent 40%)}
.hero-inner{position:relative;z-index:2;flex:1;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);align-items:center;gap:40px;padding:120px var(--pad) 40px;pointer-events:none}
.hero-inner>*{pointer-events:auto}
.h1{font-size:clamp(52px,8.6vw,136px);line-height:1.02;font-weight:500;letter-spacing:-.035em;margin:18px 0 0}
.hero-sub{color:#a9b5c8;font-size:clamp(15px,1.25vw,18px);margin:28px 0 36px;max-width:520px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.modes{justify-self:end;width:min(420px,100%);padding:10px;border-radius:24px;background:linear-gradient(160deg,rgba(20,32,60,.55),rgba(8,12,24,.55));border:1px solid var(--line2);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 40px 80px -30px #000}
.mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;border-radius:16px;background:#00000040;position:relative}
.mode-tabs button{position:relative;z-index:1;height:40px;border-radius:12px;font-size:13px;color:#9fb0c8;transition:color .3s}
.mode-tabs button.on{color:#04101d}
.mode-pill{position:absolute;top:4px;bottom:4px;left:4px;width:calc((100% - 16px)/3);border-radius:12px;background:linear-gradient(120deg,#e9f6ff,#8fd3ff);transition:transform .55s var(--ease)}
.mode-body{padding:22px 16px 14px;min-height:340px;position:relative}
.mode-body>div{position:absolute;inset:22px 16px 14px;opacity:0;transform:translateY(14px);transition:opacity .5s,transform .7s var(--ease);pointer-events:none}
.mode-body>div.on{opacity:1;transform:none;pointer-events:auto}
.mode-body h3{font-size:22px;font-weight:500;margin:10px 0 8px}
.mode-body p{color:var(--muted);font-size:13.5px;margin:0 0 16px}
.mode-list{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:8px}
.mode-list li{display:flex;gap:12px;align-items:center;font-size:13px;color:#c5d0e0;padding:9px 12px;border:1px solid var(--line);border-radius:12px;background:#ffffff05}
.mode-list li b{font:500 11px var(--mono);color:var(--acc)}
.hero-foot{position:relative;z-index:2;padding:0 0 26px}
.scroll-hint{position:absolute;left:50%;bottom:120px;flex-direction:column;transform:translateX(-50%);display:flex;align-items:center;gap:12px}
.scroll-hint i{width:1px;height:46px;background:linear-gradient(var(--acc),transparent);position:relative;overflow:hidden}
.scroll-hint i::after{content:"";position:absolute;left:0;top:-50%;width:1px;height:50%;background:#fff;animation:drip 2s var(--ease) infinite}
@keyframes drip{to{top:110%}}
.marquee{position:relative;overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:56px;width:max-content;animation:mq 70s linear infinite;padding:8px 0}
.marquee.rev .marquee-track{animation-direction:reverse;animation-duration:90s}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.co{font-size:15px;font-weight:600;letter-spacing:.12em;color:#c9d6ea;opacity:.26;white-space:nowrap;transition:opacity .3s}
.co:hover{opacity:.7}
.co small{font:400 9px var(--mono);letter-spacing:.2em;margin-left:8px;opacity:.7}
.mq-note{display:flex;justify-content:space-between;padding:0 var(--pad) 6px}
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding-top:96px;align-items:end}
  .modes{justify-self:stretch}
  .scroll-hint{display:none}
}

/* ---------- 聚拢叙事（Lusion 风格滚动） ---------- */
.gather{position:relative;height:420vh;background:var(--bg)}
.gather-stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;perspective:1400px}
.gather-cards{position:absolute;inset:0;transform-style:preserve-3d}
.gcard{position:absolute;left:50%;top:50%;width:var(--w);aspect-ratio:16/10;margin:calc(var(--w) * -.3125) 0 0 calc(var(--w) * -.5);border-radius:14px;overflow:hidden;will-change:transform,opacity;background:#0b1426;border:1px solid var(--line2);box-shadow:0 30px 60px -20px #000c}
.gcard img{width:100%;height:100%;object-fit:cover}
.gcard span{position:absolute;left:10px;bottom:8px;font:500 11px var(--mono);letter-spacing:.1em;color:#fff;opacity:var(--lab,0);text-shadow:0 1px 6px #000}
.gather-copy{position:absolute;right:var(--pad);top:50%;transform:translateY(-50%);width:min(560px,46vw);z-index:3}
.gather-copy .h2{font-size:clamp(34px,4.4vw,64px)}
.gather-copy .ln{display:block;overflow:hidden;padding-bottom:.08em}
.gather-copy .ln>span{transform:translateY(105%);display:inline-block;will-change:transform}
.gather-stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:42px;border-top:1px solid var(--line2)}
.gather-stats div{padding:20px 14px 0 0;opacity:0;transform:translateY(24px)}
.gather-stats b{display:block;font-size:clamp(40px,4.4vw,68px);font-weight:400;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.gather-stats span{font-size:12.5px;color:var(--muted)}
.gather-intro{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center;z-index:2;pointer-events:none}
.gather-intro .h2{font-size:clamp(40px,7vw,110px);letter-spacing:-.03em}
.gather-progress{position:absolute;left:var(--pad);bottom:34px;display:flex;align-items:center;gap:14px;z-index:4}
.gather-progress i{display:block;width:140px;height:1px;background:var(--line2);position:relative}
.gather-progress i::after{content:"";position:absolute;inset:0;background:var(--acc);transform-origin:left;transform:scaleX(var(--p,0))}
@media (max-width:900px){
  .gather{height:380vh}
  .gather-copy{left:var(--pad);right:var(--pad);width:auto;top:auto;bottom:70px;transform:none}
  .gather-stats{grid-template-columns:repeat(2,1fr)}
  .gather-stats b{font-size:40px}
}

/* ---------- 四大核心：横向手风琴 ---------- */
.cores-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:56px;flex-wrap:wrap}
.accordion{display:flex;gap:14px;height:min(640px,76vh);perspective:1400px}
.acc{position:relative;flex:1;min-width:0;border-radius:22px;overflow:hidden;border:1px solid var(--line);transform-origin:50% 100%;will-change:transform;transition:flex 1s var(--ease),margin .9s var(--ease),border-color .4s;cursor:pointer;background:#0a1222}
.acc:nth-child(1){margin-top:0}.acc:nth-child(2){margin-top:48px}.acc:nth-child(3){margin-top:16px}.acc:nth-child(4){margin-top:72px}
.accordion:hover .acc{margin-top:0}
.acc.on{flex:3.4;border-color:var(--line2)}
.acc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38;transform:scale(1.12);transition:transform 1.4s var(--ease),opacity .8s}
.acc.on img{opacity:.72;transform:scale(1)}
.acc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,6,12,.1) 20%,rgba(4,6,12,.92))}
.acc-in{position:absolute;inset:0;z-index:2;padding:28px;display:flex;flex-direction:column;justify-content:space-between}
.acc-top{display:flex;justify-content:space-between;align-items:center}
.acc-no{font:500 12px var(--mono);color:var(--acc)}
.acc-arrow{width:42px;height:42px;border-radius:50%;border:1px solid var(--line2);display:grid;place-items:center;transition:.5s var(--ease)}
.acc.on .acc-arrow{background:var(--text);color:#04060c;transform:rotate(-45deg)}
.acc-v{position:absolute;left:28px;bottom:28px;writing-mode:vertical-rl;font-size:22px;letter-spacing:.1em;transition:opacity .4s}
.acc.on .acc-v{opacity:0}
.acc-body{opacity:0;transform:translateY(30px);transition:opacity .5s,transform .8s var(--ease);max-width:520px}
.acc.on .acc-body{opacity:1;transform:none;transition-delay:.25s}
.acc-body h3{font-size:clamp(28px,3vw,44px);font-weight:500;margin:6px 0 10px;letter-spacing:-.01em}
.acc-body p{color:#b8c3d5;margin:0 0 18px}
.acc-pts{display:flex;gap:8px;flex-wrap:wrap}
@media (max-width:900px){
  .accordion{flex-direction:column;height:auto}
  .acc,.acc.on{flex:none;height:300px;margin:0!important}
  .acc .acc-v{display:none}
  .acc .acc-body{opacity:1;transform:none}
  .acc img{opacity:.6}
}

/* ---------- 数字孪生工厂 ---------- */
.twin{position:relative;height:min(860px,100svh);min-height:600px;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:radial-gradient(900px 500px at 60% 60%,#0b1c3d,transparent 70%),var(--bg2)}
.twin canvas{position:absolute;inset:0;width:100%;height:100%}
.twin canvas.fallback{background:url(../assets/twin-factory.webp) center/cover}
.twin-labels{position:absolute;inset:0;pointer-events:none;z-index:2}
.twin-label{position:absolute;left:0;top:0;will-change:transform}
.twin-label>div{transform:translate(-50%,-100%);margin-top:-12px;padding:8px 12px;border:1px solid #7cd2ff55;border-radius:10px;background:rgba(6,14,30,.78);backdrop-filter:blur(8px);font-size:12px;white-space:nowrap;box-shadow:0 0 24px #2b6dff33}
.twin-label>div::after{content:"";position:absolute;left:50%;bottom:-12px;width:1px;height:12px;background:linear-gradient(#7cd2ff,transparent)}
.twin-label b{display:block;font:500 17px var(--mono);color:#e9f7ff;letter-spacing:0}
.twin-label small{color:var(--muted);font-size:10.5px}
.twin-copy{position:absolute;z-index:3;left:var(--pad);top:clamp(70px,10vh,120px);max-width:470px}
.twin-copy .lead{max-width:420px}
.twin-foot{position:absolute;z-index:3;left:var(--pad);right:var(--pad);bottom:28px;display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap}
@media (max-width:700px){.twin{height:780px}.twin canvas,.twin .twin-labels{top:300px;height:calc(100% - 300px)}.twin-label>div{padding:5px 8px}.twin-label b{font-size:13px}.twin-copy{top:40px}.data-hero{height:auto;min-height:0}.data-hero canvas,.data-hero .twin-labels{top:150px;height:340px}.data-hero{height:500px}}

/* ---------- 工具坞（Devin 风格悬停发光卡） ---------- */
.dock{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;margin-top:56px}
.dock a{--mx:50%;--my:50%;position:relative;aspect-ratio:1/1.08;border-radius:16px;padding:14px;display:flex;flex-direction:column;justify-content:space-between;background:rgba(12,19,35,.7);border:1px solid var(--line);overflow:hidden;transition:transform .6s var(--ease),border-color .3s,background .3s}
.dock a:nth-child(7n+2),.dock a:nth-child(7n+4),.dock a:nth-child(7n+6){transform:translateY(22px)}
.dock a::before{content:"";position:absolute;inset:0;background:radial-gradient(220px circle at var(--mx) var(--my),rgba(124,210,255,.22),transparent 60%);opacity:var(--glow,0);transition:opacity .3s}
.dock a::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:radial-gradient(160px circle at var(--mx) var(--my),#9ee0ff,transparent 70%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:var(--glow,0)}
.dock a:hover{background:rgba(18,30,56,.9);transform:translateY(-6px)!important}
.dock .ab{font-size:clamp(20px,2vw,30px);font-weight:600;letter-spacing:.02em;position:relative;z-index:1;transition:color .3s}
.dock a:hover .ab{color:#fff;text-shadow:0 0 18px #7cd2ffaa}
.dock .th{position:absolute;right:-14%;top:-6%;width:92%;opacity:.42;filter:saturate(.7);transition:opacity .5s,transform .8s var(--ease);border-radius:12px;mask:radial-gradient(circle at 60% 40%,#000 30%,transparent 72%);-webkit-mask:radial-gradient(circle at 60% 40%,#000 30%,transparent 72%)}
.dock a:hover .th{opacity:.95;transform:scale(1.08) translate(-4%,4%)}
.dock .nm{position:relative;z-index:1;font-size:12px;color:var(--muted);line-height:1.35}
.dock .nm i{display:block;font:400 9.5px var(--mono);letter-spacing:.14em;color:var(--dim);font-style:normal;margin-top:2px}
@media (max-width:1100px){.dock{grid-template-columns:repeat(5,1fr)}.dock a{transform:none!important}}
@media (max-width:640px){.dock{grid-template-columns:repeat(3,1fr);gap:8px}.dock a{padding:10px}}

/* ---------- 案例：左右联动放大 ---------- */
.cases-row{display:flex;gap:14px;height:520px;margin-top:56px;perspective:1400px}
.case{position:relative;flex:1;border-radius:22px;overflow:hidden;border:1px solid var(--line);transform-origin:50% 100%;transition:flex 1s var(--ease),margin .9s var(--ease);background:#0a1222;cursor:pointer}
.case:nth-child(2){margin-top:36px}
.cases-row:hover .case{margin-top:0}
.case.on{flex:2.3}
.case img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:transform 1.4s var(--ease),opacity .8s}
.case.on img{opacity:.85;transform:scale(1.04)}
.case::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(4,6,12,.95))}
.case-in{position:absolute;z-index:2;inset:auto 0 0 0;padding:26px}
.case-in h3{font-size:clamp(22px,2.2vw,32px);font-weight:500;margin:8px 0 6px}
.case-in p{color:#b8c3d5;margin:0;max-width:520px;font-size:14px;max-height:0;opacity:0;overflow:hidden;transition:max-height .8s var(--ease),opacity .5s}
.case.on .case-in p{max-height:120px;opacity:1}
.flow{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.flow span{font-size:11.5px;padding:5px 10px;border-radius:8px;background:#7cd2ff12;border:1px solid #7cd2ff30;color:#cfe9ff}
.flow span+span::before{content:"→ ";color:var(--acc)}
@media (max-width:900px){.cases-row{flex-direction:column;height:auto}.case,.case.on{flex:none;height:340px;margin:0!important}.case-in p{max-height:none;opacity:1}}

/* ---------- Token 中转 ---------- */
.token-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(30px,5vw,80px);align-items:center}
.token-canvas{width:100%;aspect-ratio:1.25;border-radius:24px;border:1px solid var(--line);background:radial-gradient(circle at 50% 50%,#0d1d40,#060a14 70%)}
.feat{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin-top:40px}
.feat div{background:var(--bg);padding:22px;transition:background .4s}
.feat div:hover{background:#0b1426}
.feat b{display:block;font-weight:500;margin-bottom:6px}
.feat b::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--acc);margin-right:10px;vertical-align:middle;box-shadow:0 0 8px var(--acc)}
.feat p{margin:0;color:var(--muted);font-size:13px}
@media (max-width:900px){.token-wrap{grid-template-columns:1fr}.feat{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.footer{padding:clamp(80px,12vw,160px) var(--pad) 40px;border-top:1px solid var(--line);position:relative;overflow:hidden}
.footer-big{font-size:clamp(56px,11vw,180px);font-weight:500;letter-spacing:-.04em;line-height:1;margin:0}
.footer-big a{background:linear-gradient(100deg,#fff,#7cd2ff 50%,#5a7dff);-webkit-background-clip:text;background-clip:text;color:transparent;transition:letter-spacing .8s var(--ease)}
.footer-big a:hover{letter-spacing:-.02em}
.footer-row{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-top:70px;padding-top:24px;border-top:1px solid var(--line);color:var(--dim);font-size:12.5px}
.footer-row nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-row nav a:hover{color:#fff}

/* ---------- 内页通用 ---------- */
.page{padding:110px var(--pad) 80px;min-height:100vh}
.page-head{display:flex;justify-content:space-between;align-items:end;gap:30px;flex-wrap:wrap;margin-bottom:40px}
.crumb{display:flex;gap:10px;align-items:center;margin-bottom:18px}
.crumb a{color:var(--muted)}.crumb a:hover{color:#fff}
.page-title{font-size:clamp(38px,5.5vw,84px);font-weight:500;letter-spacing:-.03em;line-height:1.05;margin:0}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:30px}
.search{position:relative;flex:0 1 320px}
.search input{width:100%;height:42px;border-radius:99px;border:1px solid var(--line2);background:#ffffff06;padding:0 18px 0 42px;outline:none;transition:border-color .3s}
.search input:focus{border-color:var(--acc)}
.search svg{position:absolute;left:15px;top:13px;opacity:.6}
.empty{padding:60px;text-align:center;color:var(--muted);border:1px dashed var(--line2);border-radius:var(--r);grid-column:1/-1}

/* 工具网格 */
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.tcard{position:relative;border-radius:16px;overflow:hidden;background:rgba(12,19,35,.75);border:1px solid var(--line);transition:transform .6s var(--ease),border-color .3s,box-shadow .5s;display:block}
.tcard:hover{transform:translateY(-6px);border-color:#7cd2ff66;box-shadow:0 24px 50px -24px #2b6dff88}
.tcard .im{aspect-ratio:16/9;overflow:hidden;position:relative}
.tcard .im img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.tcard:hover .im img{transform:scale(1.07)}
.tcard .im::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(8,13,25,.9))}
.tcard .ab{position:absolute;left:12px;top:10px;z-index:2;font:500 10px var(--mono);letter-spacing:.14em;padding:3px 7px;border-radius:6px;background:#04060caa;border:1px solid var(--line2)}
.tcard .tx{padding:12px 14px 14px}
.tcard h3{font-size:15px;font-weight:500;margin:0 0 4px}
.tcard p{font-size:12.5px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tcard .ft{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:11px;color:var(--dim)}
.fav{width:30px;height:30px;border-radius:50%;border:1px solid var(--line2);display:grid;place-items:center;font-size:14px;position:relative;z-index:3;transition:.3s}
.fav.on{background:var(--acc);color:#04101d;border-color:var(--acc)}

/* 工具详情 */
.detail{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(30px,5vw,70px);align-items:start}
.detail-img{border-radius:24px;overflow:hidden;border:1px solid var(--line2);position:sticky;top:96px}
.detail-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0}
.kv div{padding:16px;border:1px solid var(--line);border-radius:14px;background:#ffffff04}
.kv small{display:block;color:var(--dim);font-size:11px;margin-bottom:6px}
.prompt{position:relative;padding:18px 18px 18px;border-radius:14px;border:1px solid var(--line2);background:#03060ccc;font:13px/1.75 var(--mono);color:#cfe1f5;white-space:pre-wrap;max-height:260px;overflow:auto}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.note{font-size:12.5px;color:var(--dim);margin-top:16px;line-height:1.7}
@media (max-width:900px){.detail{grid-template-columns:1fr}.detail-img{position:static}}

/* 数据中心 */
.data-hero{position:relative;height:min(64vh,620px);min-height:440px;border-radius:26px;overflow:hidden;border:1px solid var(--line);background:radial-gradient(900px 500px at 60% 60%,#0b1c3d,transparent 70%),var(--bg2);margin-bottom:28px}
.data-hero canvas{position:absolute;inset:0;width:100%;height:100%}
.data-hero canvas.fallback{background:url(../assets/twin-factory.webp) center/cover}
.data-hero .twin-copy{top:34px;left:34px}
.data-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:24px;align-items:start}
.ind-list{position:sticky;top:90px;display:grid;gap:6px}
.ind-list a{display:flex;gap:12px;align-items:center;padding:8px;border-radius:14px;border:1px solid transparent;transition:.3s}
.ind-list a:hover{background:#ffffff06;border-color:var(--line)}
.ind-list a.on{background:var(--panel2);border-color:var(--line2)}
.ind-list img{width:44px;height:44px;border-radius:10px;object-fit:cover;opacity:.8}
.ind-list b{display:block;font-weight:500;font-size:14px}
.ind-list small{font:400 9.5px var(--mono);letter-spacing:.12em;color:var(--dim)}
.tabs{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:99px;width:max-content;max-width:100%;overflow:auto;margin-bottom:22px;background:#ffffff04}
.tabs a{height:36px;padding:0 18px;border-radius:99px;display:flex;align-items:center;font-size:13.5px;color:#aeb9cb;white-space:nowrap}
.tabs a.on{background:var(--text);color:#04060c}
.ind-banner{display:flex;gap:24px;align-items:center;padding:22px;margin-bottom:18px}
.ind-banner img{width:120px;height:80px;object-fit:cover;border-radius:12px}
.ind-banner h2{margin:0;font-size:28px;font-weight:500}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:18px}
.kpi{padding:22px;position:relative;overflow:hidden}
.kpi .v{font-size:40px;font-weight:400;letter-spacing:-.02em;line-height:1.1;margin:14px 0 4px;font-variant-numeric:tabular-nums}
.kpi .v small{font-size:15px;color:var(--muted);margin-left:4px}
.kpi p{font-size:12px;color:var(--muted);margin:8px 0 12px}
.kpi .src{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--dim);border-top:1px solid var(--line);padding-top:10px}
.kpi .src a{color:var(--acc)}
.kpi svg.g{position:absolute;right:16px;top:16px}
.dash{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.card{padding:20px;position:relative}
.card h4{margin:0 0 4px;font-size:14.5px;font-weight:500;display:flex;justify-content:space-between;gap:10px;align-items:center}
.card .sub{font-size:11.5px;color:var(--dim);margin-bottom:12px}
.c4{grid-column:span 4}.c5{grid-column:span 5}.c6{grid-column:span 6}.c7{grid-column:span 7}.c8{grid-column:span 8}.c12{grid-column:span 12}
.modules{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.module{padding:16px;border:1px solid var(--line);border-radius:14px;background:#ffffff04;position:relative;overflow:hidden}
.module::after{content:"";position:absolute;left:0;top:0;height:1px;width:40%;background:linear-gradient(90deg,transparent,var(--acc),transparent);animation:scanx 3.5s linear infinite;animation-delay:var(--d,0s)}
@keyframes scanx{from{transform:translateX(-100%)}to{transform:translateX(350%)}}
.module b{display:block;font-weight:500;font-size:14px;margin:8px 0 4px}
.module small{color:var(--dim);font-size:11.5px}
.filters-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.sel{height:38px;border-radius:10px;border:1px solid var(--line2);background:#0a1120;padding:0 12px;min-width:130px}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px;vertical-align:middle}
.watermark{position:absolute;right:16px;top:16px}
@media (max-width:1000px){.data-layout{grid-template-columns:1fr}.ind-list{position:static;grid-template-columns:repeat(4,1fr);overflow:auto}.ind-list a{flex-direction:column;text-align:center}.ind-list small{display:none}.c4,.c5,.c6,.c7,.c8{grid-column:span 12}}
@media (max-width:560px){.ind-list{grid-template-columns:repeat(4,minmax(70px,1fr))}.ind-list img{width:36px;height:36px}.ind-list b{font-size:12px}.ind-banner{flex-direction:column;align-items:flex-start}}

/* 地图 */
.map-wrap{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:14px}
.map{position:relative;padding:10px}
.map svg{width:100%;height:auto;display:block}
.map .prov{fill:#0d1a33;stroke:#2f5c99;stroke-width:.6;transition:fill .3s}
.map .prov:hover,.map .prov.on{fill:#1a3768;stroke:#7cd2ff}
.map .dot{cursor:pointer}
.map .pulse{animation:pulse 2.4s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{from{transform:scale(.4);opacity:.9}to{transform:scale(2.6);opacity:0}}
.map-side{padding:22px}
.role-row{display:grid;grid-template-columns:110px 1fr 46px;gap:10px;align-items:center;font-size:12.5px;margin:9px 0}
.role-row i{display:block;height:6px;border-radius:3px;background:linear-gradient(90deg,#5a7dff,#7cd2ff);transform-origin:left;animation:grow 1s var(--ease) both}
@keyframes grow{from{transform:scaleX(0)}}
.links{display:grid;gap:8px;margin-top:14px}
.links a{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:13px;transition:.3s}
.links a:hover{border-color:var(--acc);background:#7cd2ff0c}
.links a small{display:block;color:var(--dim);font-size:11px}
@media (max-width:1000px){.map-wrap{grid-template-columns:1fr}}

/* 源表 */
.table{width:100%;border-collapse:collapse;font-size:13px}
.table th{text-align:left;font:500 10.5px var(--mono);letter-spacing:.12em;color:var(--dim);padding:12px;border-bottom:1px solid var(--line2)}
.table td{padding:14px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.table a{color:var(--acc)}
.twrap{overflow:auto}

/* 方案页 */
.graph-box{position:relative;height:min(620px,72vh);min-height:460px;padding:0;overflow:hidden}
@media (max-width:640px){.graph-box{height:820px}.token-canvas{aspect-ratio:.95}}
.graph-box canvas{width:100%;height:100%;display:block}
.graph-info{position:absolute;right:18px;bottom:18px;width:min(320px,calc(100% - 36px));padding:18px;transition:opacity .4s,transform .6s var(--ease)}
.graph-info.off{opacity:0;transform:translateY(16px);pointer-events:none}
.sol-list{display:grid;gap:14px;margin-top:40px}
.sol{display:grid;grid-template-columns:280px 1fr auto;gap:26px;align-items:center;padding:16px;border-radius:22px;border:1px solid var(--line);background:rgba(10,16,30,.6);transition:border-color .4s,background .4s,transform .7s var(--ease)}
.sol:nth-child(even){margin-left:clamp(0px,6vw,90px)}
.sol:hover{border-color:var(--line2);background:rgba(16,26,48,.75);transform:translateX(8px)}
.sol img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;transition:transform .8s var(--ease)}
.sol:hover img{transform:scale(1.03)}
.sol h3{font-size:24px;font-weight:500;margin:6px 0 6px}
.sol .meta{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px;font-size:12.5px;color:#b8c3d5}
.sol .meta small{display:block;color:var(--dim);font-size:11px}
.sol .steps{display:none}
@media (max-width:900px){.sol{grid-template-columns:1fr}.sol:nth-child(even){margin:0}.sol .meta{grid-template-columns:1fr}}

/* 案例页 */
.case-feature{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center;padding:60px 0;border-top:1px solid var(--line)}
.case-feature:nth-child(even) .cf-img{order:2}
.cf-img{border-radius:24px;overflow:hidden;border:1px solid var(--line2);position:relative}
.cf-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.5s var(--ease)}
.cf-img:hover img{transform:scale(1.05)}
.cf-img .tag{position:absolute;left:14px;top:14px;background:#04060cbb}
.case-feature h2{font-size:clamp(30px,3.6vw,52px);font-weight:500;margin:10px 0 14px;letter-spacing:-.02em}
.case-feature p{color:#b8c3d5}
@media (max-width:900px){.case-feature{grid-template-columns:1fr}.case-feature:nth-child(even) .cf-img{order:0}}

/* 会员 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.plan{padding:26px}
.plan.hl{border-color:#7cd2ff66;background:linear-gradient(160deg,rgba(30,60,110,.5),rgba(10,16,30,.7))}
.plan .price{font-size:40px;margin:12px 0}
.plan ul{padding-left:18px;color:#b8c3d5;font-size:13.5px}
.meter{height:8px;border-radius:4px;background:#ffffff10;overflow:hidden;margin:12px 0}
.meter i{display:block;height:100%;background:linear-gradient(90deg,#5a7dff,#7cd2ff);width:32%}
@media (max-width:900px){.plans{grid-template-columns:1fr}}

.code{font:12.5px/1.8 var(--mono);background:#02040acc;border:1px solid var(--line2);border-radius:16px;padding:20px;overflow:auto;color:#cfe1f5;margin:0}
.code .k{color:#7cd2ff}.code .s{color:#ffc37a}.code .c{color:#56627a}

/* ---------- 过渡 & 光标 & 提示 ---------- */
.wipe{position:fixed;inset:0;z-index:150;pointer-events:none;background:#04060c;transform:translateY(100%)}
.wipe::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--acc),transparent);box-shadow:0 0 30px 4px #7cd2ff88}
.wipe.cover{transition:transform .5s cubic-bezier(.7,0,.3,1);transform:translateY(0)}
.wipe.leave{transition:transform .6s cubic-bezier(.7,0,.3,1);transform:translateY(-100%)}
.cursor{position:fixed;left:0;top:0;z-index:300;pointer-events:none;mix-blend-mode:difference}
.cursor i{position:absolute;width:8px;height:8px;margin:-4px;border-radius:50%;background:#fff}
.cursor b{position:absolute;width:36px;height:36px;margin:-18px;border-radius:50%;border:1px solid #fff;transition:width .35s var(--ease),height .35s var(--ease),margin .35s var(--ease),opacity .3s;opacity:.6}
.cursor.big b{width:70px;height:70px;margin:-35px;opacity:1}
@media (pointer:coarse){.cursor{display:none}}
.toast{position:fixed;left:50%;bottom:28px;z-index:160;transform:translate(-50%,30px);opacity:0;padding:12px 20px;border-radius:99px;background:#e8eef7;color:#04060c;font-size:13.5px;transition:.5s var(--ease);pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}
.motion-btn{position:fixed;right:18px;bottom:18px;z-index:80;height:34px;padding:0 14px;border-radius:99px;border:1px solid var(--line2);background:rgba(4,6,12,.7);backdrop-filter:blur(8px);font-size:12px;color:var(--muted)}
.motion-btn:hover{color:#fff;border-color:var(--acc)}
body.still *{animation-play-state:paused!important}

@media (prefers-reduced-motion:reduce){
  .rv,.split .ln>span{transition:none!important;opacity:1!important;transform:none!important}
  .marquee-track{animation:none}
  .gather{height:auto}
}

/* 图表动画 */
.seg{animation:segin 1.4s var(--ease) both}
@keyframes segin{from{stroke-dasharray:0 100}}
.draw{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.8s var(--ease) .2s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.area{animation:fadein 1.2s .6s both}
@keyframes fadein{from{opacity:0}}
.fav-btn{width:48px;padding:0;justify-content:center}
.fav-btn.on{background:var(--acc);color:#04101d;border-color:var(--acc)}