:root{--ink:#192b3d;--muted:#647167;--green:#89dfef;--line:#dce2d8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:#f7fafc;color:var(--ink);font-family:Arial,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}header,main,footer{max-width:1200px;margin:auto}header{height:94px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid var(--line)}.brand{font-size:33px;letter-spacing:-2px;font-weight:800;display:inline-flex;align-items:baseline;gap:6px}.brand span{font-size:18px;letter-spacing:-1px;color:var(--muted)}.brand i{width:8px;height:8px;background:#83aa27;border-radius:50%;align-self:center;margin-left:3px}nav{display:flex;gap:30px;font-size:14px}.small-button{border:1px solid var(--ink);padding:12px 18px;border-radius:7px;font-size:13px}section{padding:84px 32px}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:65px;align-items:center;padding-top:76px;padding-bottom:70px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:#647358}h1{font-size:76px;line-height:1.18;letter-spacing:-4px;margin:28px 0}h1 span{background:linear-gradient(transparent 60%,var(--green) 60%)}.lead{font-size:16px;line-height:1.95;color:var(--muted)}.actions{display:flex;gap:12px;margin:30px 0}.primary,.secondary{padding:16px 23px;border-radius:6px;font-size:14px;font-weight:bold}.primary{background:var(--ink);color:white}.secondary{border:1px solid var(--line)}.hero-note{font-size:11px;color:var(--muted)}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#7b9d36;margin-right:6px}.terminal{background:#102c42;color:#e8f3dc;border-radius:14px;padding:20px 25px;box-shadow:0 24px 55px #22372218;transform:rotate(1deg)}.terminal-head{display:flex;justify-content:space-between;font-size:9px;color:#8eaa8e;letter-spacing:1px}.orb{width:200px;height:200px;border:1px solid #99c76055;border-radius:50%;margin:30px auto;display:flex;flex-direction:column;justify-content:center;align-items:center;font-size:130px;font-style:italic;color:var(--green);background:radial-gradient(ellipse,#9bbf3833,transparent 70%);box-shadow:0 0 0 18px #9cba5e06,0 0 0 37px #9cba5e04}.orb span{font-size:8px;letter-spacing:4px;font-style:normal}.terminal-code{font:12px/2.2 Consolas,monospace;padding:16px 0;border-top:1px solid #ffffff16}.terminal-code span{color:#6c826e;margin-right:15px}.terminal-code b{font-weight:normal;color:#89dfef}.terminal-foot{border-top:1px solid #ffffff16;padding-top:16px;font-size:8px;letter-spacing:1px;color:#94ab93}.terminal-foot span{float:right}.strip{padding:28px 32px;display:flex;justify-content:space-between;align-items:center;gap:18px;border-block:1px solid var(--line);font-size:12px;color:var(--muted)}.strip strong{color:#354635;font-size:15px}.strip span:last-child{font-size:10px}.section-top{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}h2{font-size:34px;letter-spacing:-1px;margin:15px 0}p{line-height:1.8}.section-top p{font-size:12px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}article{border:1px solid var(--line);border-radius:10px;padding:30px;background:#fff}article:hover{border-color:#91aa58}.tag{font-size:10px;letter-spacing:2px;color:#74865f}h3{font-size:20px}article p{font-size:13px;color:var(--muted);min-height:70px}.card-bottom{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);font-size:12px}.card-bottom span{float:right}.notice{margin-top:20px;padding:25px 30px;border-radius:8px;background:#e8f3fa}.notice strong{font-size:14px}.notice p{font-size:12px;color:var(--muted)}.notice a{font-size:12px;font-weight:bold}#guide{border-top:1px solid var(--line)}.guide-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:65px}.steps>div{position:relative;padding-left:48px;margin:24px 0}.steps b{position:absolute;left:0;top:0;font-size:13px;color:#819360}.steps h3{font-size:16px;margin:0}.steps p{font-size:12px;color:var(--muted)}.code-panel{background:#102c42;border-radius:10px;color:#ddeaCF;padding:22px;min-width:0}.tabs{display:flex;gap:15px;border-bottom:1px solid #ffffff22;padding-bottom:14px}.tabs button{border:0;background:none;color:#98ab95;cursor:pointer;font:12px Arial;padding:5px 0}.tabs button.active{color:var(--green)}#copy{margin-left:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.9 Consolas,monospace;min-height:220px}.code-panel p{font-size:10px;color:#98ab95}.links{display:flex;gap:18px;margin-top:28px}.links a{border:1px solid var(--line);border-radius:7px;padding:18px 22px;flex:1;font-size:14px}.links small{display:block;margin-top:8px;color:var(--muted);font-size:11px}.buy{background:var(--green);border-radius:14px;display:grid;grid-template-columns:1fr 1fr;gap:70px;margin:0 32px;padding:50px}.buy h2{font-size:36px}.buy p,.buy li{font-size:13px;line-height:2}.buy-detail h3{margin-top:0}.buy-detail ol{padding-left:20px}.pending{background:#102c42;color:white;padding:14px 20px;display:inline-block;border-radius:6px;font-size:13px}.buy-detail>p{font-size:11px;color:#526135}#help{max-width:900px;margin:auto}details{border-bottom:1px solid var(--line);padding:23px 0}summary{cursor:pointer;font-size:15px}details p{font-size:13px;color:var(--muted)}footer{border-top:1px solid var(--line);padding:35px 32px;display:flex;justify-content:space-between;align-items:center;gap:25px}footer p,footer>span{font-size:12px;color:var(--muted)}footer small{font-size:10px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #8fab45;outline-offset:4px}@media(max-width:760px){header{padding:0 20px;height:76px}nav{gap:12px;font-size:11px}.small-button{display:none}section{padding:54px 20px}.hero{grid-template-columns:1fr;gap:35px;padding-top:45px}h1{font-size:60px}.terminal{transform:none}.strip{flex-wrap:wrap;padding:23px 20px}.strip span:last-child{width:100%}.section-top{display:block}.cards{grid-template-columns:1fr}.guide-layout{grid-template-columns:1fr;gap:15px}.buy{grid-template-columns:1fr;margin:0 20px;padding:28px;gap:20px}.links{flex-direction:column}h2,.buy h2{font-size:28px}footer{flex-wrap:wrap;padding:30px 20px}.lead{font-size:14px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.brand img{display:block;width:205px;height:auto;object-fit:contain}.brand{letter-spacing:normal}@media(max-width:760px){.brand img{width:145px}}

@media(max-width:760px){header{height:auto;min-height:76px;flex-wrap:wrap;padding-top:15px;padding-bottom:15px;gap:15px}nav{width:100%;justify-content:space-between;gap:8px;flex-wrap:wrap}footer>div{font-size:12px}pre{min-height:0}}

.price-scroll{overflow-x:auto;margin:30px 0}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}th{background:#e8f3fa;padding:18px}td{padding:20px 18px;border-bottom:1px solid var(--line);white-space:nowrap}td code{font-size:11px;color:var(--muted)}@media(max-width:760px){th,td{padding:15px 10px;font-size:12px}td code{font-size:10px}}

.featured{border-top:1px solid var(--line)}.catalog-note{font-size:11px;color:var(--muted);margin-top:22px}.featured article a{font-size:12px;font-weight:bold}.hero .lead{max-width:560px}

html[lang="en"] h1{font-size:62px;letter-spacing:-3px}html[lang="en"] .hero{gap:35px}html[lang="en"] nav{gap:18px}.language{font-weight:bold;white-space:nowrap}@media(max-width:760px){html[lang="en"] h1{font-size:46px;letter-spacing:-2px}html[lang="en"] nav{gap:10px}html[lang="en"] .actions{flex-wrap:wrap}}

.expanded{border-top:1px solid var(--line)}.expanded article p{min-height:0}.expanded td{white-space:normal;line-height:1.7}.journey{display:grid;grid-template-columns:1fr 1fr;gap:70px;background:#e8f3fa;margin:0 32px 50px;border-radius:14px;padding:45px}.journey p{color:var(--muted);font-size:14px;margin-bottom:32px}.flow>div{display:flex;gap:20px;padding:18px 0;border-bottom:1px solid #c6dbe6}.flow b{color:#158eaf;font-size:12px}.flow span{font-size:16px}.flow small{display:block;color:var(--muted);font-size:11px;margin-top:8px}.workflow-art{padding:10px 32px 40px}.workflow-art img{width:100%;height:auto;display:block}@media(max-width:760px){.journey{grid-template-columns:1fr;margin:0 20px 30px;padding:25px;gap:20px}.workflow-art{padding:5px 20px 25px}.expanded td{min-width:130px}}

.telegram-contact{display:grid;grid-template-columns:1fr 300px;gap:55px;align-items:center}.telegram-contact img{width:100%;height:auto;border-radius:16px}.telegram-contact .primary{display:inline-block;margin:15px 0}.telegram-contact p{color:var(--muted)}@media(max-width:760px){.telegram-contact{grid-template-columns:1fr;gap:25px}.telegram-contact img{max-width:300px;justify-self:center}}

.model-visual{height:490px;position:relative;border:1px solid #cfe0ec;border-radius:24px;overflow:hidden;background:radial-gradient(ellipse at 50% 45%,#b7f1ee77,transparent 55%),linear-gradient(145deg,#f0f9ff,#e9f1fa 65%,#e7f8f4);box-shadow:0 25px 65px #285c8312;isolation:isolate}.model-visual:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#7ca9bf55 .7px,transparent .7px);background-size:18px 18px;mask-image:linear-gradient(black,transparent)}.visual-caption{position:absolute;top:24px;left:22px;right:22px;font:9px Arial;letter-spacing:1.7px;color:#527386;display:flex;align-items:center;gap:7px}.visual-caption>span:last-child{margin-left:auto}.visual-dot{width:5px;height:5px;border-radius:50%;background:#1caeb9}.connections{position:absolute;width:100%;height:100%;inset:0;fill:none}.connections circle{stroke:#8ab8ce44;stroke-dasharray:3 7}.connections path{stroke:url(#link);stroke-width:1.5}.visual-core{position:absolute;left:50%;top:45%;transform:translate(-50%,-50%);width:155px;height:108px;border:1px solid #b9dbe3;border-radius:19px;background:#ffffffdd;display:flex;align-items:center;justify-content:center;flex-direction:column;box-shadow:0 10px 40px #367c9b19;z-index:2}.visual-core img{width:130px;height:auto}.visual-core>span{font-size:7px;letter-spacing:2.3px;color:#6e8b9b;margin-top:9px}.model-node{position:absolute;display:flex;align-items:center;gap:10px;background:#fffffff2;border:1px solid #d5e4eb;border-radius:13px;padding:14px 13px;width:175px;box-shadow:0 9px 25px #254d7410;z-index:3}.node-claude{top:88px;left:19px}.node-gpt{top:88px;right:19px}.node-gemini{top:307px;left:19px}.node-grok{top:307px;right:19px}.node-symbol{color:#187da4;width:30px;font-size:29px;position:relative;font-weight:bold}.node-symbol>span{font-size:11px;position:absolute;right:-2px;top:-2px;color:#40b5c2}.model-node small{font-size:7px;letter-spacing:1.7px;color:#8496a0;display:block}.model-node strong{font-size:20px;display:block;margin:4px 0;color:#213c52}.model-node em{font-size:9px;color:#5e7b8c;font-style:normal}.visual-bottom{position:absolute;bottom:24px;left:22px;right:22px;border-top:1px solid #c7dce5;padding-top:15px}.visual-bottom strong{font-size:13px;font-weight:500;display:block}.visual-bottom>span{display:block;font-size:7px;letter-spacing:2px;color:#6d8998;margin-top:8px}@media(max-width:1050px) and (min-width:761px){.hero{grid-template-columns:1fr 1fr;gap:25px}.model-node{width:145px;padding:12px 9px;gap:6px}.node-claude,.node-gemini{left:9px}.node-gpt,.node-grok{right:9px}.model-node strong{font-size:17px}}@media(max-width:760px){.model-visual{height:460px;max-width:500px;width:100%;justify-self:center}.model-node{width:145px;padding:12px 10px;gap:7px}.node-claude,.node-gemini{left:12px}.node-gpt,.node-grok{right:12px}.node-gemini,.node-grok{top:290px}.model-node strong{font-size:18px}.visual-core{width:135px;height:100px}.visual-core img{width:115px}.visual-caption{font-size:8px;letter-spacing:1px}}@media(max-width:360px){.model-node{width:126px}.model-node strong{font-size:16px}.node-symbol{font-size:23px;width:23px}.model-node em{font-size:8px}}

/* Brand nucleus: intentionally distinct from rectangular model cards. */
.visual-core{width:190px;height:190px;border:0;border-radius:50%;background:radial-gradient(circle at 37% 30%,#ffffff 0%,#f2ffffe8 36%,#b1e5ef99 66%,#87bfe333 75%,transparent 76%);box-shadow:0 0 48px #3ab7cf2b,0 0 85px #6ed7cb33;overflow:visible}.visual-core:before{content:"";position:absolute;inset:13px;border-radius:50%;border:1px solid #ffffffd9;box-shadow:inset 0 0 20px #ffffff80;pointer-events:none}.visual-core:after{content:"";position:absolute;inset:-8px;border:1px solid #5baacb55;border-radius:50%;transform:rotate(-30deg) scaleY(.68);pointer-events:none}.core-orbit{position:absolute;inset:-15px;border:1px solid #6eb7d155;border-radius:50%;transform:rotate(40deg) scaleY(.72)}.core-orbit:before{content:"";position:absolute;top:21px;left:21px;width:7px;height:7px;background:#21a9c4;border:2px solid #e9ffff;border-radius:50%;box-shadow:0 0 12px #3ab8dc}.visual-core img{position:relative;width:151px;height:auto;z-index:1;filter:drop-shadow(0 4px 6px #1f739b18)}.visual-core>span{position:relative;z-index:1;margin-top:12px;font-size:6px;letter-spacing:3px;color:#39758e}@media(max-width:760px){.visual-core{width:170px;height:170px}.visual-core img{width:137px}.core-orbit{inset:-9px}}@media(max-width:360px){.visual-core{width:155px;height:155px}.visual-core img{width:125px}}

.wechat-contact{border-bottom:1px solid var(--line)}.wechat-contact img{background:#fff;border:1px solid var(--line);padding:12px;border-radius:16px}

.social-icons{display:flex;align-items:center;gap:14px;margin-top:26px}.social-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid #d5e4eb;border-radius:50%;background:#fff;color:#24465e}.social-icon svg{display:block}

.page-title,html[lang="en"] h1.page-title{font-size:34px;line-height:1.3;letter-spacing:-1px;margin:15px 0}@media(max-width:760px){.page-title,html[lang="en"] h1.page-title{font-size:28px}}

.service-strip{display:grid;grid-template-columns:repeat(4,1fr);margin:0 32px;border-block:1px solid var(--line);padding:25px 0;font-size:12px;font-weight:600;color:#497080;text-align:center}.product-section{padding-bottom:30px}.section-action{padding:0 32px 50px}.section-action a{display:inline-block}.developer-block{display:grid;grid-template-columns:1fr 1.15fr;gap:45px;border-top:1px solid var(--line);align-items:center}.developer-block p{font-size:14px;color:var(--muted);margin-bottom:30px}.developer-block a{display:inline-block}.developer-block pre{font-size:12px;min-height:0}.service-cta{margin:0 32px 65px;background:#e2f3f8;border:1px solid #c9e4ed;border-radius:18px;display:flex;align-items:center;gap:35px;padding:40px}.service-cta p{max-width:680px;font-size:14px;color:var(--muted)}.service-cta .primary{white-space:nowrap}.catalog-tools{display:flex;gap:20px;align-items:end;margin:28px 0}.catalog-tools label,.estimate-fields label{display:flex;flex-direction:column;gap:9px;font-size:12px;color:#527080}.catalog-tools label:first-child{flex:1}input,select{font:14px Arial,sans-serif;padding:13px;border:1px solid #c8dce7;border-radius:6px;background:#fff;color:#193c50;max-width:100%}.catalog-tools>span{font-size:12px;padding-bottom:13px;color:#527080}.cost-estimator{border-top:1px solid var(--line);background:#eef6fa}.cost-estimator>p{font-size:13px;color:var(--muted)}.estimate-fields{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px;margin-top:25px}.cost-estimator .estimate-result{font-size:25px;color:#183f58;font-weight:bold}html[lang="en"] .hero h1{font-size:53px;line-height:1.15;letter-spacing:-2px}html[lang="en"] .hero h1 span{background:none}@media(max-width:760px){.service-strip{grid-template-columns:1fr 1fr;gap:20px;margin:0 20px}.developer-block{grid-template-columns:1fr;gap:25px}.service-cta{margin:0 20px 35px;flex-direction:column;align-items:start;padding:25px}.catalog-tools{flex-wrap:wrap}.catalog-tools label:first-child{flex-basis:100%}.estimate-fields{grid-template-columns:1fr}.section-action{padding-left:20px}html[lang="en"] .hero h1{font-size:43px}.product-section article p{min-height:0}}