/* 版式：深海青底 + 面料薄荷青光。首屏左文右球，向下依次是业务、产业链流向图、API 终端、算力集群、优势、流程、接入表单 */
:root{
  color-scheme: dark;
  --bg:#041417;
  --bg-2:#06201f;
  --panel:rgba(14,48,48,.55);
  --panel-solid:#0a2a2a;
  --line:rgba(116,205,184,.15);
  --line-strong:rgba(116,205,184,.42);
  --mint:#74CDB8;          /* 面料主色 */
  --mint-hi:#B4EEDF;
  --mint-lo:#2F8F7C;
  --fg:#E8F6F2;
  --muted:#8FB4AC;
  --dim:#5D847D;
  --code-key:#B4EEDF;
  --code-str:#E9D8A6;
  --code-cmt:#5D847D;
  --f-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --f-latin:"Avenir Next","Futura","Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;
  --f-mono:ui-monospace,"SF Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --r:18px;
}
*{box-sizing:border-box}
html:root{padding-top:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-x:clip}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;text-wrap:balance;font-weight:900;letter-spacing:.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}

/* ---------- 背景氛围 ---------- */
.bgfx{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bgfx .grid{position:absolute;inset:-2px;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;opacity:.35;-webkit-mask-image:radial-gradient(ellipse 70% 55% at 60% 20%,#000 0%,transparent 75%);mask-image:radial-gradient(ellipse 70% 55% at 60% 20%,#000 0%,transparent 75%)}
.bgfx .blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.38}
.bgfx .b1{width:620px;height:620px;background:var(--mint-lo);top:-220px;right:-140px;animation:drift 22s ease-in-out infinite alternate}
.bgfx .b2{width:460px;height:460px;background:#1b5d63;bottom:-180px;left:-160px;animation:drift 26s ease-in-out infinite alternate-reverse}
@keyframes drift{to{transform:translate(-80px,90px) scale(1.15)}}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .35s,border-color .35s,backdrop-filter .35s;border-bottom:1px solid transparent}
.nav.scrolled,html:not(.js) .nav{background:rgba(4,20,23,.72);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;gap:32px;height:70px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand svg{width:34px;height:34px}
.brand b{font-size:18px;letter-spacing:.12em;font-weight:900}
.brand small{display:block;font-size:11.5px;color:var(--mint);letter-spacing:.08em;font-weight:500;line-height:1.2;font-family:var(--f-latin)}
.nav ul{display:flex;gap:6px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{display:block;padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--muted);transition:color .2s,background .2s}
.nav ul a:hover{color:var(--fg);background:rgba(116,205,184,.08)}
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;font-family:inherit;border:0;cursor:pointer;transition:transform .25s,box-shadow .3s,background .3s;white-space:nowrap}
.btn-main{background:var(--mint);color:#032421;box-shadow:0 0 0 0 rgba(116,205,184,.5),0 10px 30px -10px rgba(116,205,184,.7)}
.btn-main:hover{box-shadow:0 0 0 6px rgba(116,205,184,.16),0 16px 40px -10px rgba(116,205,184,.9);background:var(--mint-hi)}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--line-strong)}
.btn-ghost:hover{background:rgba(116,205,184,.1);border-color:var(--mint)}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}
.nav .btn{padding:9px 20px;font-size:14px}
.m-only{display:none}
.menu-t{margin-left:auto;background:none;border:1px solid var(--line-strong);color:var(--fg);border-radius:10px;width:42px;height:42px;cursor:pointer;font-size:18px}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding-block:clamp(110px,14vw,150px) 40px}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.hero-txt{min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 10px;border:1px solid var(--line-strong);border-radius:999px;font-size:13px;color:var(--mint-hi);letter-spacing:.14em;background:rgba(116,205,184,.06)}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 0 var(--mint);animation:ping 2s infinite}
@keyframes drop{from{opacity:0;transform:translateY(-10px)}}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(116,205,184,.7)}100%{box-shadow:0 0 0 10px rgba(116,205,184,0)}}
.hero h1{font-size:clamp(42px,6.6vw,88px);line-height:1.12;margin:26px 0 24px;letter-spacing:.04em}
.hero h1 span{display:block}
.grad{background:linear-gradient(100deg,var(--fg) 0%,var(--mint-hi) 35%,var(--mint) 60%,var(--mint-hi) 85%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 7s linear infinite}
@keyframes sheen{to{background-position:-220% 0}}
.hero p.lead{font-size:clamp(16px,1.35vw,18px);color:var(--muted);max-width:34em}
.hero .ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.load{animation:rise .9s cubic-bezier(.2,.8,.2,1) both}
.d1{animation-delay:.08s}.d2{animation-delay:.18s}.d3{animation-delay:.3s}.d4{animation-delay:.42s}.d5{animation-delay:.55s}
@keyframes rise{from{opacity:0;transform:translateY(26px);filter:blur(6px)}}

.globe-box{position:relative;width:100%;max-width:580px;aspect-ratio:1/1;justify-self:end;min-width:0}
/* 纯 CSS/SVG 地球：所有环境（含微信文件预览）显示一致 */
.globe{position:absolute;inset:0}
.globe .atm{position:absolute;inset:6%;border-radius:50%;background:radial-gradient(circle,rgba(116,205,184,.2) 52%,rgba(116,205,184,0) 70%)}
.globe .sph{position:absolute;inset:12%;border-radius:50%;overflow:hidden;background:radial-gradient(circle at 40% 34%,rgba(116,205,184,.16),rgba(5,30,30,.72) 64%);border:1px solid rgba(116,205,184,.36);box-shadow:inset -24px -34px 70px rgba(0,0,0,.5),inset 10px 12px 40px rgba(116,205,184,.08)}
.globe .tilt{position:absolute;inset:0;transform:rotate(-16deg)}
.globe .rg{position:absolute;height:0}
.globe .d{position:absolute;left:0;top:0;width:100%;height:0;animation:lon var(--T,30s) linear infinite;will-change:transform,opacity}
.globe .d::before{content:"";position:absolute;left:-1px;top:-1px;width:2px;height:2px;border-radius:50%;background:var(--mint)}
.globe .d.h::before{left:-2px;top:-2px;width:4px;height:4px;background:var(--mint-hi);box-shadow:0 0 8px var(--mint)}
@keyframes lon{
  0%{transform:translateX(0);opacity:.18;animation-timing-function:cubic-bezier(.12,0,.39,0)}
  25%{transform:translateX(50%);opacity:1;animation-timing-function:cubic-bezier(.61,1,.88,1)}
  50%{transform:translateX(100%);opacity:.18;animation-timing-function:cubic-bezier(.12,0,.39,0)}
  75%{transform:translateX(50%);opacity:.06;animation-timing-function:cubic-bezier(.61,1,.88,1)}
  100%{transform:translateX(0);opacity:.18}
}
.globe .shade{position:absolute;inset:0;border-radius:50%;background:radial-gradient(circle at 36% 30%,rgba(180,238,223,.10),transparent 42%),radial-gradient(circle at 50% 50%,transparent 60%,rgba(4,20,23,.55) 100%)}
.globe svg.ov{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.globe .trk{fill:none;stroke:rgba(116,205,184,.16);stroke-width:.35}
.globe .fl{fill:none;stroke:url(#gArc);stroke-width:.7;stroke-linecap:round;stroke-dasharray:22 200;animation:flow 3.6s linear infinite}
.globe .fl.o{stroke:var(--mint);stroke-width:.55;animation-duration:2.4s}
@keyframes flow{0%{stroke-dashoffset:22;opacity:0}8%{opacity:1}80%{opacity:1}100%{stroke-dashoffset:-100;opacity:0}}
.globe .orbit{fill:none;stroke:rgba(116,205,184,.2);stroke-width:.3;stroke-dasharray:.8 2}
.globe .pulse{fill:none;stroke:var(--mint);stroke-width:.4;transform-box:fill-box;transform-origin:center;animation:hubp 2.4s ease-out infinite}
.globe .pulse.p2{animation-delay:-.8s}.globe .pulse.p3{animation-delay:-1.6s}
@keyframes hubp{from{transform:scale(.4);opacity:1}to{transform:scale(3.2);opacity:0}}
.globe .core{fill:#B4EEDF;filter:drop-shadow(0 0 2px #74CDB8)}
.globe .city{fill:#B4EEDF;opacity:.85}

.gpu{position:relative;display:grid;grid-template-columns:repeat(20,1fr);grid-auto-rows:1fr;gap:4px;height:280px}
.gpu i{background:rgba(30,85,80,.55);border-radius:1px;transition:background .8s}
.gpu i.a{background:rgba(47,143,124,.85);animation:cell 6s ease-in-out infinite}
.gpu i.b{background:#B4EEDF;box-shadow:0 0 6px rgba(116,205,184,.6);animation:cell 4s ease-in-out infinite}
@keyframes cell{50%{opacity:.4}}
.gpu::after{content:"";position:absolute;top:-4px;bottom:-4px;left:0;width:12%;background:linear-gradient(90deg,transparent,rgba(180,238,223,.28),transparent);animation:scan 4.5s linear infinite;pointer-events:none}
@keyframes scan{from{transform:translateX(-100%)}to{transform:translateX(900%)}}
/* 有脚本：第 4 版画布动画；无脚本（如微信文件预览）：纯 CSS 版本 */
.globe-box canvas{position:relative;z-index:1;width:100%;height:100%;display:block;cursor:grab;touch-action:pan-y}
.globe-box canvas:active{cursor:grabbing}
.js .globe{display:none}
html:not(.js) #globe{display:none}
.flow canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
html:not(.js) #flowCv{display:none}
.js #up .fnode::after,.js #down .fnode::before,.js .hub::before,.js .hub::after,.js #up::after,.js #down::after{display:none!important}
.js .fnode{animation:none}
.fnode.lit{border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(116,205,184,.15),0 8px 30px -10px rgba(116,205,184,.35)}
.js .hub .r1,.js .hub .r2{display:block}
#gpu{display:block;width:100%;height:280px}
.js .gpu{display:none}
html:not(.js) #gpu{display:none}
.chip{position:absolute;z-index:2;display:flex;align-items:center;gap:8px;padding:8px 14px;font-size:13px;border-radius:12px;background:rgba(6,32,31,.78);border:1px solid var(--line-strong);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);white-space:nowrap;animation:float 6s ease-in-out infinite;box-shadow:0 10px 30px -12px rgba(0,0,0,.6)}
.chip i{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
.chip.c1{top:12%;left:-2%}
.chip.c2{top:46%;right:-4%;animation-delay:-2s}
.chip.c3{bottom:10%;left:8%;animation-delay:-4s}
@keyframes float{50%{transform:translateY(-12px)}}

.pillars{margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r);background:rgba(6,32,31,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);overflow:hidden}
.pillars a{position:relative;padding:22px 24px;display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);transition:background .3s}
.pillars a:first-child{border-left:0}
.pillars a:hover{background:rgba(116,205,184,.07)}
.pillars a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--mint);transition:width .5s}
.pillars a:hover::after{width:100%}
.pillars .k{font-family:var(--f-mono);font-size:12px;color:var(--dim);letter-spacing:.1em}
.pillars b{font-size:19px}
.pillars span{font-size:13px;color:var(--muted)}

/* ---------- 通用区块 ---------- */
section{position:relative}
section[id]{scroll-margin-top:98px}
.sec{padding-block:clamp(80px,10vw,130px)}
.sec-h{display:grid;grid-template-columns:1fr 1fr;gap:24px 60px;align-items:end;margin-bottom:56px}
.tag{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.24em;color:var(--mint);margin-bottom:16px}
.tag::before{content:"";width:28px;height:1px;background:var(--mint)}
.sec-h h2{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:.03em}
.sec-h p{color:var(--muted);max-width:32em}
[data-rv].pre{opacity:.15;transform:translateY(34px)}
[data-rv]{transition:opacity 1s cubic-bezier(.2,.8,.2,1),transform 1s cubic-bezier(.2,.8,.2,1)}

/* ---------- 跑马灯 ---------- */
.marquee{border-block:1px solid var(--line);padding-block:20px;overflow:hidden;display:grid;gap:12px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.mq-row{display:flex;gap:14px;width:max-content;animation:mq 46s linear infinite}
.mq-row.rev{animation-direction:reverse;animation-duration:54s}
.mq-row span{padding:8px 20px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--muted);white-space:nowrap}
.mq-row span:nth-child(3n){color:var(--mint-hi);border-color:var(--line-strong)}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- 业务卡片 ---------- */
.biz{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{position:relative;padding:30px 26px 28px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line);overflow:hidden;transition:transform .45s cubic-bezier(.2,.8,.2,1),border-color .3s;min-width:0;display:flex;flex-direction:column}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(380px circle at var(--mx,50%) var(--my,-20%),rgba(116,205,184,.18),transparent 45%);opacity:0;transition:opacity .4s;pointer-events:none}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card .ico{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(116,205,184,.22),rgba(116,205,184,.04));border:1px solid var(--line-strong);margin-bottom:26px}
.card .ico svg{width:28px;height:28px;stroke:var(--mint-hi);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:23px;margin-bottom:12px}
.card p{color:var(--muted);font-size:15px;flex:1}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:22px}
.card .tags span{font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(116,205,184,.08);color:var(--mint-hi)}
.card .big{position:absolute;right:-6px;top:6px;font-family:var(--f-latin);font-weight:700;font-size:64px;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(116,205,184,.16);pointer-events:none}

/* ---------- 产业链流向 ---------- */
.flow{position:relative;padding:44px clamp(16px,3vw,40px);border-radius:28px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(10,42,42,.6),rgba(4,20,23,.3));overflow:hidden}
.flow-grid{--g:clamp(48px,7vw,110px);position:relative;z-index:1;display:grid;grid-template-columns:1fr minmax(240px,300px) 1fr;gap:var(--g);align-items:center}
.fcol{position:relative}
.fnode{position:relative}
.wire{--c:rgba(116,205,184,.75);background:repeating-linear-gradient(90deg,var(--c) 0 6px,transparent 6px 14px);background-size:14px 2px;animation:wire 1s linear infinite}
@keyframes wire{to{background-position:14px 0}}
@keyframes wirev{to{background-position:0 14px}}
#up .fnode::after,#down .fnode::before,.hub::before,.hub::after{content:"";position:absolute;top:50%;height:2px;margin-top:-1px;width:calc(var(--g) / 2);background:repeating-linear-gradient(90deg,rgba(116,205,184,.75) 0 6px,transparent 6px 14px);animation:wire 1s linear infinite}
#up .fnode::after{left:100%}
#down .fnode::before{right:100%}
.hub::before{right:100%}
.hub::after{left:100%}
#up::after,#down::after{content:"";position:absolute;top:84px;bottom:32px;width:2px;background:linear-gradient(var(--line-strong),var(--mint),var(--line-strong))}
#up::after{left:calc(100% + var(--g) / 2 - 1px)}
#down::after{right:calc(100% + var(--g) / 2 - 1px);top:84px}
.fnode{animation:lit 7.5s ease-in-out infinite}
.fcol .fnode:nth-of-type(2){animation-delay:-1.5s}.fcol .fnode:nth-of-type(3){animation-delay:-3s}.fcol .fnode:nth-of-type(4){animation-delay:-4.5s}.fcol .fnode:nth-of-type(5){animation-delay:-6s}
#down .fnode{animation-delay:-.75s}#down .fnode:nth-of-type(2){animation-delay:-2.25s}#down .fnode:nth-of-type(3){animation-delay:-3.75s}#down .fnode:nth-of-type(4){animation-delay:-5.25s}
@keyframes lit{0%,70%,100%{border-color:var(--line);box-shadow:none}80%{border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(116,205,184,.15),0 8px 30px -10px rgba(116,205,184,.45)}}
.fcol{display:flex;flex-direction:column;gap:12px;min-width:0}
.fcol h4{margin:0 0 6px;font-size:13px;letter-spacing:.24em;color:var(--mint);font-weight:500}
.fnode{display:flex;gap:14px;align-items:center;padding:13px 16px;border-radius:14px;background:var(--panel-solid);border:1px solid var(--line);transition:border-color .3s,transform .3s,box-shadow .3s}
.fnode:hover{border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(116,205,184,.15),0 8px 30px -10px rgba(116,205,184,.35)}
.fnode:hover{transform:translateX(4px)}
.fnode .n{flex-shrink:0;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:rgba(116,205,184,.1);color:var(--mint-hi);font-family:var(--f-mono);font-size:12px}
.fnode b{display:block;font-size:15.5px;line-height:1.4}
.fnode small{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}
.hub{position:relative;aspect-ratio:1/1;display:grid;place-items:center;text-align:center;max-width:300px;width:100%;margin-inline:auto}
.hub .ring{position:absolute;border-radius:50%;border:1px dashed var(--line-strong)}
.hub .r1{inset:0;animation:spin 40s linear infinite}
.hub .r2{inset:11%;border-style:solid;border-color:var(--line);animation:spin 26s linear infinite reverse}
.hub .r3{inset:22%;background:radial-gradient(circle,rgba(116,205,184,.28),rgba(4,20,23,.95) 70%);border:1px solid var(--line-strong);box-shadow:0 0 60px -10px rgba(116,205,184,.55),inset 0 0 40px rgba(116,205,184,.15)}
.hub .r1::after,.hub .r2::after{content:"";position:absolute;top:-4px;left:50%;width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 14px var(--mint)}
@keyframes spin{to{transform:rotate(360deg)}}
.hub-in{position:relative;display:flex;flex-direction:column;align-items:center;gap:4px}
.hub-in svg{width:50px;height:50px}
.hub-in b{font-size:17px;letter-spacing:.14em;margin-top:6px}
.hub-in small{font-size:11.5px;color:var(--muted);letter-spacing:.12em}
.hub-tags{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:22px}
.hub-tags span{font-size:12.5px;text-align:center;padding:6px 8px;border-radius:8px;border:1px solid var(--line);color:var(--mint-hi);background:rgba(116,205,184,.05)}

/* ---------- API 终端 ---------- */
.api{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,5vw,70px);align-items:center}
.api-txt{min-width:0}
.api-txt h2{font-size:clamp(30px,4vw,48px);line-height:1.2;margin-bottom:20px}
.api-txt>p{color:var(--muted)}
.checks{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:14px}
.checks li{display:flex;gap:14px;align-items:flex-start}
.checks li::before{content:"";flex-shrink:0;margin-top:7px;width:14px;height:14px;border-radius:4px;border:1.5px solid var(--mint);background:linear-gradient(var(--mint),var(--mint)) center/6px 6px no-repeat}
.checks b{display:block;font-size:16px}
.checks span{color:var(--muted);font-size:14.5px}
.term{min-width:0;border-radius:20px;background:#031012;border:1px solid var(--line-strong);box-shadow:0 30px 80px -30px rgba(116,205,184,.35),0 0 0 6px rgba(116,205,184,.04);overflow:hidden}
.term-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(116,205,184,.04)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#1f4744}
.term-bar i:first-child{background:var(--mint)}
.term-bar em{margin-left:10px;font-style:normal;font-family:var(--f-mono);font-size:12px;color:var(--dim)}
.tabs{display:flex;gap:6px;padding:12px 14px 0;flex-wrap:wrap}
.tabs button{font-family:inherit;font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;transition:all .25s}
.tabs button:hover{color:var(--fg);border-color:var(--line-strong)}
.tabs button[aria-pressed="true"]{background:var(--mint);color:#032421;border-color:var(--mint);font-weight:700}
.code{margin:0;padding:18px 20px 6px;font-family:var(--f-mono);font-size:13.5px;line-height:1.75;color:var(--fg);white-space:pre;overflow-x:auto;height:186px;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.code .k{color:var(--code-key)}.code .s{color:var(--code-str)}.code .c{color:var(--code-cmt)}
.caret{display:inline-block;width:8px;height:1.1em;vertical-align:-2px;background:var(--mint);animation:blink 1s steps(1) infinite;margin-left:1px}
@keyframes blink{50%{opacity:0}}
.resp{margin:8px 20px 20px;padding:14px 16px;border-radius:12px;background:rgba(116,205,184,.06);border:1px solid var(--line);font-size:14.5px;min-height:128px}
.resp .lbl{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:11.5px;color:var(--dim);margin-bottom:6px;letter-spacing:.06em}
.resp .lbl b{color:var(--mint);font-weight:500}
.resp .out{white-space:pre-wrap;word-break:break-word;color:var(--mint-hi);font-family:var(--f-body)}
.resp .out.mono{font-family:var(--f-mono);font-size:13px}

/* ---------- 中转平台 ---------- */
.plat{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(32px,5vw,70px);align-items:center}
.plat-txt{min-width:0}
.plat-txt h2{font-size:clamp(30px,4vw,48px);line-height:1.2;margin-bottom:20px}
.plat-txt>p{color:var(--muted)}
.soon{display:inline-flex;align-items:center;gap:6px;margin-left:10px;padding:2px 10px;border-radius:999px;font-size:12px;letter-spacing:.06em;color:#032421;background:var(--mint);vertical-align:middle}
.plat-list{list-style:none;padding:0;margin:28px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.plat-list li{padding:16px;border-radius:14px;border:1px solid var(--line);background:var(--panel)}
.plat-list b{display:block;font-size:15.5px;margin-bottom:2px}
.plat-list span{font-size:13.5px;color:var(--muted);line-height:1.6;display:block}
.plat-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:28px}
.plat-cta small{color:var(--dim);font-size:13px}
.console{min-width:0;border-radius:20px;border:1px solid var(--line-strong);background:linear-gradient(160deg,#0a2a2a,#031012);overflow:hidden;box-shadow:0 30px 80px -30px rgba(116,205,184,.35)}
.con-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.con-bar b{color:var(--fg);font-size:14px;display:flex;align-items:center;gap:8px}
.con-bar b svg{width:20px;height:20px}
.con-bar em{font-style:normal;font-size:11.5px;color:var(--dim);border:1px solid var(--line);padding:1px 8px;border-radius:999px}
.con-body{padding:16px;display:grid;gap:12px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpis div{padding:12px;border-radius:12px;background:rgba(116,205,184,.06);border:1px solid var(--line);min-width:0}
.kpis small{display:block;font-size:11.5px;color:var(--dim)}
.kpis b{font-family:var(--f-latin);font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.spark{height:70px;border-radius:12px;border:1px solid var(--line);background:rgba(3,16,18,.6);overflow:hidden}
.spark svg{width:100%;height:100%;display:block}
.spark .ln{fill:none;stroke:var(--mint);stroke-width:1.6;stroke-dasharray:400;animation:draw 5s ease-in-out infinite}
.spark .ar{fill:url(#gSpark)}
@keyframes draw{0%{stroke-dashoffset:400}45%,100%{stroke-dashoffset:0}}
.keyrow{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:rgba(3,16,18,.6);border:1px solid var(--line);font-family:var(--f-mono);font-size:12.5px;color:var(--mint-hi);min-width:0}
.keyrow span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.keyrow i{font-style:normal;font-family:var(--f-body);font-size:11.5px;color:#032421;background:var(--mint);padding:1px 8px;border-radius:6px}
.models{display:grid;gap:6px}
.models div{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;font-size:12.5px}
.models u{text-decoration:none;color:var(--muted)}
.models s{text-decoration:none;font-family:var(--f-mono);font-size:11.5px;color:var(--mint)}
.models q{grid-column:1/-1;height:4px;border-radius:2px;background:rgba(116,205,184,.12);overflow:hidden;position:relative}
.models q::before,.models q::after{content:none}
.models q i{position:absolute;left:0;top:0;bottom:0;width:var(--w);background:linear-gradient(90deg,var(--mint-lo),var(--mint));animation:bar 3s ease-in-out infinite alternate}
@keyframes bar{from{width:calc(var(--w) * .7)}}
.con-note{font-size:11.5px;color:var(--dim);text-align:right;padding:0 16px 12px}
.notice{display:inline-flex;align-items:center;gap:10px;max-width:100%;padding:5px 14px 5px 5px;margin-bottom:16px;border-radius:999px;border:1px solid var(--line-strong);background:linear-gradient(90deg,rgba(116,205,184,.16),rgba(116,205,184,.03));font-size:13.5px;color:var(--fg);transition:border-color .25s,background .25s}
.notice:hover{border-color:var(--mint)}
.notice b{flex-shrink:0;font-size:11px;letter-spacing:.08em;padding:2px 9px;border-radius:999px;background:var(--mint);color:#032421}
.notice span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav ul a sup{font-size:10px;margin-left:3px;color:var(--mint);font-weight:700;letter-spacing:.04em;vertical-align:super;line-height:0}
#mnav{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.menu-t{display:none;place-items:center}
.menu-t .x{display:none}
#mnav:checked ~ .menu-t .x{display:inline}
#mnav:checked ~ .menu-t .o{display:none}
#mnav:focus-visible ~ .menu-t{outline:2px solid var(--mint);outline-offset:3px}

/* ---------- 算力 ---------- */
.compute{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,70px);align-items:center}
.rack{min-width:0;border-radius:22px;border:1px solid var(--line-strong);background:linear-gradient(160deg,rgba(10,42,42,.8),rgba(3,16,18,.9));padding:20px;position:relative;overflow:hidden}
.rack::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(100deg,rgba(116,205,184,.035) 0 2px,transparent 2px 5px);pointer-events:none}
.rack-h{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center;margin-bottom:16px;font-size:13px}
.rack-h b{font-size:15px;letter-spacing:.06em}
.legend{display:flex;gap:14px;color:var(--muted);font-size:12px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:9px;height:9px;border-radius:2px}
.rack-f{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.rack-f div{padding:10px 12px;border-radius:10px;background:rgba(116,205,184,.05);border:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.rack-f b{display:block;color:var(--fg);font-size:14px}
.compute-txt{min-width:0}
.compute-txt h2{font-size:clamp(30px,4vw,48px);line-height:1.2;margin-bottom:20px}
.compute-txt>p{color:var(--muted);margin-bottom:28px}
.feats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.feat{padding:18px;border-radius:14px;border:1px solid var(--line);background:var(--panel);transition:border-color .3s,background .3s}
.feat:hover{border-color:var(--line-strong);background:rgba(116,205,184,.08)}
.feat b{display:block;font-size:16px;margin-bottom:4px}
.feat span{font-size:13.5px;color:var(--muted);line-height:1.6;display:block}

/* ---------- 优势 ---------- */
.why{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.why div{position:relative;padding:36px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;transition:background .4s}
.why div::after{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:translateX(-100%);transition:transform .7s}
.why div:hover{background:rgba(116,205,184,.05)}
.why div:hover::after{transform:translateX(100%)}
.why svg{width:30px;height:30px;stroke:var(--mint);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:20px}
.why b{display:block;font-size:20px;margin-bottom:8px}
.why span{color:var(--muted);font-size:15px}

/* ---------- 流程 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.steps .track{position:absolute;left:0;right:0;top:27px;height:2px;background:var(--line)}
.steps .track i{position:absolute;left:0;top:0;height:100%;width:0;background:linear-gradient(90deg,var(--mint-lo),var(--mint));box-shadow:0 0 12px var(--mint);transition:width .9s cubic-bezier(.2,.8,.2,1)}
.step{position:relative;z-index:1;min-width:0}
.step .num{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--bg);border:1.5px solid var(--line-strong);font-family:var(--f-latin);font-weight:700;font-size:16px;color:var(--muted);transition:all .5s;margin-bottom:22px}
.step.on .num{background:var(--mint);color:#032421;border-color:var(--mint);box-shadow:0 0 0 8px rgba(116,205,184,.14),0 0 30px rgba(116,205,184,.6)}
.step b{display:block;font-size:19px;margin-bottom:6px;transition:color .4s}
.step.on b{color:var(--mint-hi)}
.step span{color:var(--muted);font-size:14.5px}

/* ---------- 接入 ---------- */
.cta{position:relative;border-radius:30px;border:1px solid var(--line-strong);padding:clamp(28px,5vw,64px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);overflow:hidden;background:radial-gradient(700px 400px at 0% 0%,rgba(116,205,184,.22),transparent 60%),linear-gradient(160deg,#0a2a2a,#041417)}
.cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(92deg,rgba(180,238,223,.05) 0 1.5px,transparent 1.5px 4px);-webkit-mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 70%);mask-image:radial-gradient(ellipse at 0% 0%,#000,transparent 70%);pointer-events:none}
.cta-txt{position:relative;min-width:0}
.cta-txt h2{font-size:clamp(30px,4vw,50px);line-height:1.22;margin-bottom:20px}
.cta-txt p{color:var(--muted);margin-bottom:28px}
.contact-list{display:grid;gap:12px;font-size:15px}
.contact-list div{display:flex;gap:14px;align-items:baseline}
.contact-list em{font-style:normal;color:var(--dim);font-size:13px;min-width:5em}
form{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:14px;min-width:0}
.fld{display:flex;flex-direction:column;gap:6px;min-width:0}
.fld.full{grid-column:1/-1}
.fld label{font-size:13px;color:var(--muted)}
.fld input,.fld select,.fld textarea{font-family:inherit;font-size:16px;color:var(--fg);background:rgba(3,16,18,.7);border:1px solid var(--line);border-radius:12px;padding:12px 14px;transition:border-color .25s,box-shadow .25s;width:100%}
.fld textarea{min-height:110px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 4px rgba(116,205,184,.15)}
form .btn{grid-column:1/-1;justify-content:center;padding-block:14px}
.form-msg{grid-column:1/-1;font-size:14px;color:var(--mint-hi);min-height:1.5em}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);margin-top:clamp(80px,10vw,120px);padding-block:56px 40px}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot p{color:var(--muted);font-size:14px;margin-top:16px;max-width:24em}
.foot h5{margin:0 0 14px;font-size:14px;color:var(--fg);font-weight:700;letter-spacing:.1em}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.foot li,.foot li a{font-size:14px;color:var(--muted)}
.foot li a:hover{color:var(--mint)}
.copy{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:var(--dim)}
.wordmark{font-family:var(--f-latin);font-weight:600;font-size:clamp(48px,13vw,180px);line-height:.9;letter-spacing:.02em;margin-top:48px;color:transparent;-webkit-text-stroke:1px rgba(116,205,184,.25);background:linear-gradient(90deg,rgba(116,205,184,.35),rgba(116,205,184,0) 70%);-webkit-background-clip:text;background-clip:text;user-select:none;white-space:nowrap;overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav ul{display:none}
  .nav .btn{margin-left:auto}
  .menu-t{display:grid;margin-left:0}
  .nav.open,.nav:has(#mnav:checked){background:var(--bg);border-bottom-color:var(--line)}
  #mnav:checked ~ ul{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;gap:2px;padding:10px clamp(16px,4vw,40px) 18px;margin:0;background:var(--bg);border-bottom:1px solid var(--line-strong);box-shadow:0 30px 60px -20px rgba(0,0,0,.8);animation:drop .3s cubic-bezier(.2,.8,.2,1)}
  #mnav:checked ~ ul a{padding:14px 12px;font-size:16px;color:var(--fg);border-bottom:1px solid var(--line);border-radius:0}
  #mnav:checked ~ ul li:last-child a{border-bottom:0}
  #mnav:checked ~ ul .m-only{display:block}
  #mnav:checked ~ ul .m-only a{color:var(--mint);font-weight:700}
  .nav.open ul{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;gap:2px;padding:10px clamp(16px,4vw,40px) 18px;margin:0;background:var(--bg);border-bottom:1px solid var(--line-strong);box-shadow:0 30px 60px -20px rgba(0,0,0,.8);animation:drop .3s cubic-bezier(.2,.8,.2,1)}
  .nav.open ul a{padding:14px 12px;font-size:16px;color:var(--fg);border-bottom:1px solid var(--line);border-radius:0}
  .nav.open ul li:last-child a{border-bottom:0}
  .nav.open .m-only{display:block}
  .nav.open .m-only a{color:var(--mint);font-weight:700}
  .biz{grid-template-columns:repeat(2,1fr)}
  .why{grid-template-columns:repeat(2,1fr)}
  .foot{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero .wrap,.api,.compute,.cta,.sec-h{grid-template-columns:1fr}
  .globe-box{justify-self:center;max-width:460px}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .pillars a:nth-child(3){border-left:0}
  .pillars a:nth-child(n+3){border-top:1px solid var(--line)}
  .flow-grid{grid-template-columns:1fr;--g:44px}
  #up .fnode::after,#down .fnode::before,#up::after,#down::after{display:none}
  .hub::before,.hub::after{left:50%;right:auto;width:2px;height:calc(var(--g) / 2 + 14%);margin:0 0 0 -1px;background:repeating-linear-gradient(180deg,rgba(116,205,184,.75) 0 6px,transparent 6px 14px);background-size:2px 14px;animation:wirev 1s linear infinite}
  .hub::before{top:auto;bottom:100%}
  .hub::after{top:100%}
  .hub .r1,.hub .r2{display:none}
  .compute-txt{order:-1}
  .plat{grid-template-columns:1fr}
  .hub{max-width:260px}
  .steps{grid-template-columns:1fr;gap:26px}
  .steps .track{left:27px;right:auto;top:0;bottom:0;width:2px;height:auto}
  .steps .track i{width:100%!important;height:var(--h,0%);transition:height .9s}
  .step{display:grid;grid-template-columns:56px 1fr;gap:0 20px}
  .step .num{margin:0;grid-row:span 2}
}
@media (max-width:560px){
  .nav .btn{display:none}
  .menu-t{margin-left:auto}
  .brand small{font-size:10.5px}
  .biz,.why,.feats,form{grid-template-columns:1fr}
  .rack-f{grid-template-columns:1fr}
  .chip{font-size:12px;padding:6px 10px}
  .chip.c2{right:0}
  .chip.c1{left:0}
  .gpu{height:200px;gap:3px}
  #gpu{height:200px}
  .plat-list{grid-template-columns:1fr 1fr;gap:8px}
  .plat-list li{padding:12px}
  .kpis b{font-size:16px}
  .kpis div{padding:10px 8px}
  .notice{font-size:12.5px}
  .rack-f{grid-template-columns:repeat(3,1fr);gap:8px}
  .rack-f div{padding:8px 10px;font-size:11.5px}
  .rack-f b{font-size:13px}
  .rack{padding:16px}
  .hero{padding-block:100px 24px}
  .hero h1{margin:20px 0 18px}
  .hero .ctas{margin-top:28px}
  .hero .ctas .btn{flex:1;justify-content:center}
  .globe-box{max-width:360px;margin-top:-8px}
  .pillars{margin-top:28px}
  .pillars a{padding:16px 16px}
  .pillars b{font-size:17px}
  .sec-h{margin-bottom:36px}
  .card{padding:24px 22px 22px}
  .card .ico{margin-bottom:18px;width:48px;height:48px}
  .card h3{font-size:21px}
  .why div{padding:24px 20px;display:grid;grid-template-columns:30px 1fr;gap:4px 16px}
  .why svg{margin:2px 0 0;grid-row:span 2}
  .why b{margin:0;font-size:18px}
  .flow{padding:28px 16px}
  .fnode{padding:11px 14px}
  .hub-tags{grid-template-columns:1fr 1fr!important}
  .term .code{font-size:12px;padding:16px 16px 6px;height:170px}
  .resp{margin:8px 14px 16px;font-size:14px}
  .tabs{padding:12px 12px 0}
  .api-txt h2,.compute-txt h2{margin-bottom:14px}
  .cta{border-radius:22px;padding:28px 18px}
  .foot{grid-template-columns:repeat(3,1fr);gap:28px 16px}
  .foot>div:first-child{grid-column:1/-1}
  .foot h5{font-size:13px}
  .foot li,.foot li a{font-size:13px}
  .copy{flex-direction:column;gap:4px}
  .bgfx .blob{animation:none;filter:blur(60px)}
  .nav.scrolled,html:not(.js) .nav{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  [data-rv].pre{opacity:1;transform:none}
}

html,body{margin:0;padding:0}
.form-notice{grid-column:1/-1;color:var(--mint-hi);font-size:13px;line-height:1.7;padding:12px 14px;border:1px solid var(--line-strong);border-radius:10px;background:rgba(116,205,184,.06)}
#form button:disabled{cursor:not-allowed;opacity:.55;box-shadow:none}

/* ================= 2026-11 视觉升级：算力科技风格，原有动效全部保留 ================= */
:root{--hair:linear-gradient(90deg,transparent,rgba(116,205,184,.6),transparent)}

/* 背景：细噪点让大面积深色更有质感 */
.bgfx::after{content:"";position:absolute;inset:0;opacity:.06;mix-blend-mode:overlay;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' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* 导航：四个栏目 + 控制台 + 申请接入 */
.nav.scrolled::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--hair);opacity:.7}
.nav ul{gap:4px}
.nav ul a{position:relative;border-radius:8px;letter-spacing:.04em}
.nav ul a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1px;background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.nav ul a:hover{background:transparent}
.nav ul a:hover::after{transform:scaleX(1)}
.btn-line{background:rgba(116,205,184,.06);color:var(--mint-hi);border:1px solid var(--line-strong)}
.btn-line:hover{border-color:var(--mint);background:rgba(116,205,184,.12);color:var(--fg)}
.btn-line .arr{font-size:13px}
.btn-line:hover .arr{transform:translate(2px,-2px)}
.nav .nav-console{margin-right:-20px}

/* 按钮：渐变 + 掠光 */
.btn-main{overflow:hidden;background:linear-gradient(135deg,#9be4d2,var(--mint) 48%,#4fb39d)}
.btn-main:hover{background:linear-gradient(135deg,#c4f3e7,#94e1cd 48%,var(--mint))}
.btn-main::after{content:"";position:absolute;top:0;bottom:0;left:-70%;width:50%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-20deg);transition:left .8s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.btn-main:hover::after{left:130%}
.btn-ghost{background:rgba(6,32,31,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.btn-ghost .arr{font-size:14px}
.btn-ghost:hover .arr{transform:translate(2px,-2px)}

/* 首屏 */
.hero::before{content:"";position:absolute;left:0;right:0;top:-6%;height:760px;background:radial-gradient(ellipse 45% 50% at 28% 42%,rgba(116,205,184,.10),transparent 70%),radial-gradient(ellipse 35% 45% at 74% 40%,rgba(27,93,99,.30),transparent 70%);pointer-events:none;z-index:-1}
.hero h1 span:first-child{background:linear-gradient(180deg,#fff 20%,#cfeee6);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h1 .grad{filter:drop-shadow(0 0 26px rgba(116,205,184,.30))}
.eyebrow{font-family:var(--f-body);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}

/* 地球外的仪表框：四角、刻度环、扫描线 */
.hud{position:absolute;inset:-1%;pointer-events:none;z-index:0}
.hud-c{position:absolute;width:26px;height:26px;border:1.5px solid var(--line-strong)}
.hud-c.tl{top:0;left:0;border-right:0;border-bottom:0;border-top-left-radius:6px}
.hud-c.tr{top:0;right:0;border-left:0;border-bottom:0;border-top-right-radius:6px}
.hud-c.bl{bottom:0;left:0;border-right:0;border-top:0;border-bottom-left-radius:6px}
.hud-c.br{bottom:0;right:0;border-left:0;border-top:0;border-bottom-right-radius:6px}
.hud-rings{position:absolute;inset:3%;border-radius:50%;overflow:hidden}
.hud-ring{position:absolute;inset:0;border-radius:50%;background:repeating-conic-gradient(rgba(116,205,184,.55) 0 .35deg,transparent .35deg 5deg);-webkit-mask:radial-gradient(closest-side,transparent calc(100% - 9px),#000 calc(100% - 8px),#000 100%,transparent 100%);mask:radial-gradient(closest-side,transparent calc(100% - 9px),#000 calc(100% - 8px),#000 100%,transparent 100%);opacity:.55;animation:spin 120s linear infinite}
.hud-ring.r2{inset:4.3%;background:repeating-conic-gradient(rgba(180,238,223,.6) 0 1.2deg,transparent 1.2deg 30deg);-webkit-mask:radial-gradient(closest-side,transparent calc(100% - 4px),#000 calc(100% - 3px),#000 100%,transparent 100%);mask:radial-gradient(closest-side,transparent calc(100% - 4px),#000 calc(100% - 3px),#000 100%,transparent 100%);opacity:.5;animation-duration:80s;animation-direction:reverse}
.hud-scan{position:absolute;left:10%;right:10%;top:8%;height:1px;background:var(--hair);opacity:0;animation:hudscan 7s ease-in-out infinite}
@keyframes hudscan{0%{top:10%;opacity:0}12%{opacity:.6}88%{opacity:.6}100%{top:90%;opacity:0}}
.hud-tl,.hud-br{position:absolute;font-family:var(--f-mono);font-size:10.5px;line-height:1;letter-spacing:.18em;color:var(--dim);white-space:nowrap}
.hud-tl{top:-20px;left:2px}
.hud-br{bottom:-20px;right:2px}

.pillars{background:linear-gradient(180deg,rgba(12,46,46,.6),rgba(4,20,23,.35));box-shadow:inset 0 1px 0 rgba(180,238,223,.09),0 30px 60px -34px rgba(0,0,0,.7)}
.pillars .k{color:var(--mint)}

/* 区块标题：编号 + 渐变字 */
main{counter-reset:sec}
.tag{counter-increment:sec}
.tag::before{content:counter(sec,decimal-leading-zero);width:auto;height:auto;background:none;font-family:var(--f-mono);font-size:12px;line-height:1;letter-spacing:.1em;color:var(--mint-hi);padding-right:12px;border-right:1px solid var(--line-strong)}
.sec-h h2,.api-txt h2,.plat-txt h2,.compute-txt h2,.cta-txt h2{background:linear-gradient(180deg,#fff 15%,#cdeee6 70%,#9adcca);-webkit-background-clip:text;background-clip:text;color:transparent}

/* 卡片：渐变描边 + 跟随鼠标的光斑 */
.card{background:linear-gradient(180deg,rgba(14,52,52,.62),rgba(6,26,27,.5));border-color:transparent;box-shadow:0 30px 60px -40px rgba(0,0,0,.8)}
.card:hover{border-color:transparent;box-shadow:0 30px 70px -34px rgba(116,205,184,.38)}
.card::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(160deg,rgba(180,238,223,.42),rgba(116,205,184,.06) 35%,rgba(116,205,184,.04) 65%,rgba(116,205,184,.3));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.feat,.plat-list li{position:relative;overflow:hidden}
.feat::before,.plat-list li::before,.why>div::before,.layer::before,.stack-side>div::before{content:"";position:absolute;inset:0;background:radial-gradient(300px circle at var(--mx,50%) var(--my,-30%),rgba(116,205,184,.16),transparent 45%);opacity:0;transition:opacity .4s;pointer-events:none}
.feat:hover::before,.plat-list li:hover::before,.why>div:hover::before,.layer:hover::before,.stack-side>div:hover::before{opacity:1}

/* 技术架构 */
.stack{display:grid;grid-template-columns:1fr 290px;gap:18px;align-items:stretch}
.stack-layers{position:relative;display:grid;gap:12px;padding-left:56px;min-width:0}
.stack-beam{position:absolute;left:20px;top:12px;bottom:12px;width:2px;border-radius:2px;background:linear-gradient(var(--line),var(--line-strong),var(--line));overflow:hidden}
.stack-beam i{position:absolute;left:0;width:100%;height:32%;background:linear-gradient(transparent,var(--mint-hi),transparent);animation:beam 3.2s linear infinite}
@keyframes beam{from{top:100%}to{top:-32%}}
.layer{position:relative;display:grid;grid-template-columns:48px minmax(150px,210px) 1fr;gap:18px;align-items:center;padding:18px 22px;border-radius:16px;border:1px solid var(--line);background:linear-gradient(90deg,rgba(14,52,52,.72),rgba(6,26,27,.42));animation:layer 6.4s ease-in-out infinite;animation-delay:calc(var(--i) * -1.6s);min-width:0}
.layer::after{content:"";position:absolute;left:-40px;top:50%;width:10px;height:10px;margin-top:-5px;border-radius:50%;background:var(--bg);border:1.5px solid var(--line-strong);animation:node 6.4s ease-in-out infinite;animation-delay:calc(var(--i) * -1.6s)}
@keyframes layer{0%,26%,100%{border-color:var(--line);box-shadow:none}6%,16%{border-color:var(--line-strong);box-shadow:0 0 0 1px rgba(116,205,184,.12),0 16px 40px -18px rgba(116,205,184,.5)}}
@keyframes node{0%,26%,100%{background:var(--bg);box-shadow:none}6%,16%{background:var(--mint);box-shadow:0 0 12px var(--mint)}}
.layer .lv{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-family:var(--f-mono);font-size:13px;color:var(--mint-hi);background:rgba(116,205,184,.08);border:1px solid var(--line-strong)}
.layer .lt{min-width:0}
.layer .lt b{display:block;font-size:17px;line-height:1.45}
.layer .lt small{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}
.layer .lc{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;min-width:0}
.layer .lc span{font-size:12.5px;padding:5px 12px;border-radius:8px;border:1px solid var(--line);color:var(--mint-hi);background:rgba(3,16,18,.55);white-space:nowrap}
.stack-side{display:grid;gap:12px}
.stack-side>div{position:relative;overflow:hidden;display:grid;grid-template-columns:28px 1fr;gap:2px 14px;align-content:center;padding:20px;border-radius:16px;border:1px solid var(--line);background:var(--panel)}
.stack-side svg{grid-row:span 2;width:26px;height:26px;margin-top:2px;stroke:var(--mint);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.stack-side b{font-size:16px;line-height:1.5}
.stack-side span{font-size:13px;color:var(--muted);line-height:1.6}

/* 中转平台：已上线 */
.soon.live{gap:7px;padding:3px 11px;font-weight:600;color:var(--mint-hi);background:rgba(116,205,184,.12);border:1px solid var(--line-strong)}
.soon.live i{width:7px;height:7px;border-radius:50%;background:var(--mint);animation:ping 2s infinite}

/* 申请接入 */
.cta-console{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--mint-hi);border-bottom:1px solid var(--line-strong);padding-bottom:3px;transition:color .2s,border-color .2s}
.cta-console:hover{color:var(--fg);border-color:var(--mint)}

@media (max-width:1080px){
  .nav .nav-console{margin-left:auto;margin-right:-20px}
  .nav .nav-console ~ .btn-main{margin-left:0}
  .stack{grid-template-columns:1fr}
  .stack-side{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .layer{grid-template-columns:44px 1fr;gap:12px 16px}
  .layer .lc{grid-column:1/-1;justify-content:flex-start}
  .stack-side{grid-template-columns:1fr}
}
@media (max-width:560px){
  .hud-tl,.hud-br{display:none}
  .hud-c{width:18px;height:18px}
  .stack-layers{padding-left:34px}
  .stack-beam{left:10px}
  .layer{padding:16px}
  .layer::after{left:-29px}
  .layer .lc span{font-size:12px;padding:4px 10px}
}
/* 四大业务条横跨整行（原来只占左半边，「裸金属算力」会折行） */
.hero .wrap + .wrap{display:block}
/* 1081–1279px 时导航间距是 14px（见 index.html 里的内联样式），两个按钮之间留 10px */
@media (min-width:1081px) and (max-width:1279px){.nav .nav-console{margin-right:-4px}}