:root{--ink:#101828;--muted:#667085;--line:#e4e7ec;--paper:#fff;--soft:#f7f8fc;--brand:#5b5bd6;--violet:#7c3aed;--cyan:#0891b2;--green:#039855;--radius:22px;--shadow:0 24px 70px rgba(49,46,129,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--soft);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.container{width:min(1180px,calc(100% - 36px));margin:auto}.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);border-bottom:1px solid rgba(228,231,236,.88);backdrop-filter:blur(18px)}.header-in{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:flex;align-items:center}.logo img{width:176px;height:44px}.nav{display:flex;align-items:center;gap:4px}.nav a{padding:9px 12px;border-radius:11px;color:#475467;font-size:14px;font-weight:650}.nav a:hover,.nav a.active{color:var(--brand);background:#f2f3ff}.actions{display:flex;align-items:center;gap:9px}.btn{min-height:42px;padding:9px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:7px;transition:.18s;cursor:pointer}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(16,24,40,.08)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn.primary{border:0;color:#fff;background:linear-gradient(135deg,var(--brand),var(--violet) 58%,var(--cyan));box-shadow:0 12px 28px rgba(91,91,214,.24)}.btn.soft{border-color:#dcdcff;color:var(--brand);background:#f5f5ff}.hero{position:relative;overflow:hidden;padding:94px 0 82px;background:radial-gradient(circle at 15% 12%,rgba(91,91,214,.18),transparent 34%),radial-gradient(circle at 88% 20%,rgba(8,145,178,.13),transparent 30%),linear-gradient(180deg,#fff,#f7f8fc)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(91,91,214,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(91,91,214,.035) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(#000,transparent)}.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center}.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;color:var(--brand);font-size:13px;font-weight:750;box-shadow:0 8px 28px rgba(16,24,40,.05)}.pill i{width:8px;height:8px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 5px rgba(18,183,106,.12)}h1{font-size:clamp(46px,6vw,72px);line-height:1.06;letter-spacing:-.052em;margin:22px 0 20px}.gradient{background:linear-gradient(120deg,var(--brand),var(--violet) 55%,var(--cyan));-webkit-background-clip:text;color:transparent}.lead{font-size:19px;color:var(--muted);max-width:670px}.hero-actions{display:flex;gap:12px;margin:30px 0 25px}.trust{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px}.trust b{color:var(--green)}.demo{border:1px solid rgba(255,255,255,.95);background:rgba(255,255,255,.7);border-radius:26px;padding:13px;box-shadow:var(--shadow);transform:perspective(1000px) rotateY(-3deg)}.demo-window{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.demo-top{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 17px;border-bottom:1px solid var(--line)}.dots{display:flex;gap:7px}.dots span{width:9px;height:9px;border-radius:50%;background:#d0d5dd}.model{font-size:12px;font-weight:750;color:var(--brand);background:#f0f1ff;padding:7px 10px;border-radius:9px}.demo-body{padding:22px;min-height:330px;background:linear-gradient(180deg,#fff,#fbfbff)}.bubble{max-width:84%;padding:13px 15px;margin-bottom:14px;border-radius:15px;font-size:14px}.bubble.user{margin-left:auto;color:#fff;background:linear-gradient(135deg,var(--brand),var(--violet));border-bottom-right-radius:5px}.bubble.ai{background:#f2f4f7;border:1px solid #eaecf0;border-bottom-left-radius:5px}.typing{display:inline-flex;gap:4px;margin-top:3px}.typing i{width:5px;height:5px;border-radius:50%;background:#98a2b3}.input-mock{margin-top:25px;padding:12px 13px;border:1px solid var(--line);border-radius:13px;color:#98a2b3;font-size:13px;display:flex;justify-content:space-between}.input-mock b{width:30px;height:30px;border-radius:9px;color:#fff;background:var(--brand);display:grid;place-items:center}.section{padding:82px 0}.section.white{background:#fff}.section-head{max-width:720px;margin:0 auto 42px;text-align:center}.section-head h2{font-size:38px;line-height:1.2;letter-spacing:-.035em;margin:9px 0}.section-head p{font-size:17px;color:var(--muted)}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:0 8px 30px rgba(16,24,40,.035)}.card-icon{width:48px;height:48px;border-radius:15px;background:linear-gradient(135deg,#eef0ff,#f4edff);color:var(--brand);display:grid;place-items:center;font-size:22px;font-weight:800}.card h3{margin:18px 0 7px;font-size:19px}.card p{margin:0;color:var(--muted);font-size:14px}.steps{counter-reset:step}.step{position:relative;padding:25px 25px 25px 76px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:24px;top:25px;width:34px;height:34px;border-radius:11px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--violet));display:grid;place-items:center;font-weight:800}.api-band{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:36px 40px;border-radius:26px;color:#fff;background:linear-gradient(135deg,#24215d,#5b3bc4 58%,#087f9b);box-shadow:0 24px 60px rgba(46,40,120,.22)}.api-band h2{margin:0 0 7px;font-size:30px}.api-band p{margin:0;color:rgba(255,255,255,.72)}.api-code{margin-top:15px;padding:12px 14px;border:1px solid rgba(255,255,255,.18);background:rgba(0,0,0,.18);border-radius:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#fff;font-size:13px}.footer{padding:34px 0;background:#fff;border-top:1px solid var(--line)}.footer-in{display:flex;justify-content:space-between;align-items:center;gap:24px;color:var(--muted);font-size:13px}.footer a:hover{color:var(--brand)}.page-hero{padding:70px 0 46px;background:radial-gradient(circle at 20% 0,rgba(91,91,214,.16),transparent 38%),#fff}.page-hero h1{font-size:48px;max-width:800px}.page-hero p{font-size:18px;color:var(--muted);max-width:760px}.choice{position:relative;overflow:hidden}.choice.featured{border-color:#c9c9ff;box-shadow:0 20px 50px rgba(91,91,214,.10)}.choice .label{position:absolute;right:16px;top:16px;padding:5px 9px;border-radius:999px;background:#eff0ff;color:var(--brand);font-size:11px;font-weight:800}.choice ul{padding-left:18px;color:#475467;font-size:14px}.choice li{margin:9px 0}.notice{padding:15px 17px;border:1px solid #fedf89;background:#fffaeb;color:#93370d;border-radius:14px;font-size:13px;margin-top:20px}.route{display:flex;align-items:flex-start;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}.route:last-child{border:0}.route-num{width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:#eff0ff;color:var(--brand);display:grid;place-items:center;font-weight:800}.route h4{margin:1px 0 3px}.route p{margin:0;color:var(--muted);font-size:13px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.small{font-size:13px;color:var(--muted)}
.workspace-page{min-height:calc(100vh - 72px);padding:30px 0 70px;background:radial-gradient(circle at 0 0,rgba(91,91,214,.12),transparent 25%),var(--soft)}.workspace-title{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:20px}.workspace-title h1{font-size:36px;letter-spacing:-.035em;margin:0 0 4px}.workspace-title p{margin:0;color:var(--muted)}.workspace-status{display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--muted);font-size:12px}.status-dot{width:8px;height:8px;border-radius:50%;background:#f79009}.status-dot.ready{background:#12b76a}.task-shell{display:grid;grid-template-columns:250px minmax(0,1fr);gap:18px;align-items:start}.task-sidebar,.task-main{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 8px 30px rgba(16,24,40,.035)}.task-sidebar{padding:14px;position:sticky;top:92px}.task-nav{display:grid;gap:7px}.task-tab{width:100%;display:flex;align-items:center;gap:11px;border:0;background:transparent;color:#475467;padding:12px;border-radius:12px;text-align:left;cursor:pointer;font-weight:700}.task-tab:hover,.task-tab.active{background:#f1f2ff;color:var(--brand)}.task-tab .task-icon{width:32px;height:32px;border-radius:10px;background:#f4f4ff;display:grid;place-items:center}.task-tab small{display:block;color:#98a2b3;font-weight:500}.task-help{border-top:1px solid var(--line);margin-top:13px;padding:15px 10px 4px;color:var(--muted);font-size:12px}.task-main{padding:26px;min-height:640px}.auth-gate{padding:44px 24px;text-align:center;border:1px dashed #cfd2ff;border-radius:16px;background:#fafaff}.auth-gate h2{margin:8px 0}.auth-gate p{color:var(--muted);max-width:560px;margin:0 auto 20px}.hidden{display:none!important}.task-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px}.task-panel-head h2{margin:0 0 4px;font-size:25px}.task-panel-head p{margin:0;color:var(--muted);font-size:14px}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#ecfdf3;color:#027a48;font-size:11px;font-weight:800}.badge.wait{background:#fffaeb;color:#b54708}.field{margin-bottom:16px}.field label{display:block;margin-bottom:7px;font-size:13px;font-weight:750;color:#344054}.field input,.field textarea,.field select{width:100%;border:1px solid #d0d5dd;border-radius:12px;padding:11px 13px;background:#fff;color:var(--ink);outline:none}.field textarea{min-height:130px;resize:vertical}.field input:focus,.field textarea:focus,.field select:focus{border-color:#8f8fe8;box-shadow:0 0 0 4px rgba(91,91,214,.10)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.task-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.task-note{color:var(--muted);font-size:12px}.result-box{margin-top:22px;border:1px solid var(--line);border-radius:16px;overflow:hidden}.result-head{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;background:#f8f9fc;border-bottom:1px solid var(--line);font-size:13px;font-weight:750}.result-content{min-height:180px;padding:18px;white-space:pre-wrap;overflow-wrap:anywhere;color:#344054;background:#fff}.result-content.empty{display:grid;place-items:center;color:#98a2b3}.result-content img,.result-content video{display:block;max-width:100%;max-height:520px;margin:auto;border-radius:12px}.model-empty{padding:12px;border-radius:12px;background:#fffaeb;color:#93370d;font-size:13px;margin-bottom:15px}.key-explain{margin-top:14px;padding:12px 14px;border-radius:12px;background:#f8f9fc;color:var(--muted);font-size:12px}.inline-link{color:var(--brand);font-weight:750}.loading{opacity:.65;pointer-events:none}
@media(max-width:920px){.nav{display:none}.hero-grid{grid-template-columns:1fr}.demo{transform:none;max-width:700px}.grid-3{grid-template-columns:1fr 1fr}.api-band{grid-template-columns:1fr}.actions .secondary{display:none}.task-shell{grid-template-columns:1fr}.task-sidebar{position:static}.task-nav{grid-template-columns:repeat(3,1fr)}.task-help{display:none}}
@media(max-width:640px){.container{width:min(100% - 26px,1180px)}.header-in{height:64px}.logo img{width:148px}.hero{padding:62px 0 52px}h1{font-size:43px}.lead{font-size:16px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.demo-body{min-height:300px;padding:16px}.section{padding:58px 0}.section-head h2{font-size:30px}.grid-3{grid-template-columns:1fr}.api-band{padding:28px 22px}.footer-in{display:block}.footer-in div+div{margin-top:10px}.page-hero{padding:50px 0 32px}.page-hero h1{font-size:38px}.workspace-page{padding-top:20px}.workspace-title{display:block}.workspace-title h1{font-size:30px}.workspace-status{margin-top:12px;width:max-content}.task-main{padding:18px;min-height:560px}.task-nav{display:flex;overflow:auto}.task-tab{min-width:128px}.task-tab small{display:none}.form-row{grid-template-columns:1fr}.task-panel-head{display:block}.task-panel-head .badge{margin-top:9px}}
.commission-intro{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}.commission-intro h2{margin:10px 0 6px;font-size:36px;line-height:1.2;letter-spacing:0}.commission-intro p{max-width:720px;margin:0;color:var(--muted)}.commission-actions{display:flex;flex:0 0 auto;gap:10px}.commission-levels{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.commission-levels article{min-height:172px;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.commission-levels article:nth-child(2){border-top:4px solid var(--cyan)}.commission-levels article:nth-child(3){border-top:4px solid var(--green);background:#f6fef9}.commission-levels span{display:block;color:#475467;font-size:14px;font-weight:800}.commission-levels strong{display:block;margin:7px 0 3px;font-size:45px;line-height:1;color:var(--brand);letter-spacing:0}.commission-levels article:nth-child(3) strong{color:var(--green)}.commission-levels p{margin:0;color:var(--muted);font-size:13px}.commission-note{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-top:18px;color:#475467;font-size:13px}.commission-note span:before{content:"✓";margin-right:6px;color:var(--green);font-weight:900}
@media(max-width:920px){.commission-intro{display:block}.commission-actions{margin-top:18px}.commission-levels{grid-template-columns:1fr 1fr}.commission-levels article:last-child{grid-column:1/-1}}
@media(max-width:640px){.commission-intro h2{font-size:30px}.commission-actions{display:grid}.commission-levels{grid-template-columns:1fr}.commission-levels article:last-child{grid-column:auto}.commission-note{display:grid;gap:8px;justify-content:start}}
.workspace-preferences{display:flex;align-items:end;gap:16px;margin-bottom:22px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff}.workspace-preferences .field{width:min(360px,100%);margin:0}.workspace-preferences .task-note{margin:0 0 11px}@media(max-width:640px){.workspace-preferences{display:block}.workspace-preferences .task-note{margin:10px 0 0}}
.file-button{position:relative;cursor:pointer}.file-button input{position:absolute;inset:0;opacity:0;cursor:pointer}.chat-attachment-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px}.chat-attachment-bar .btn{min-height:36px;padding:6px 10px;font-size:12px}.chat-attachments{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;margin-top:10px}.chat-attachment{display:flex;align-items:center;min-width:0;gap:9px;padding:7px 8px;border:1px solid #e1e4ec;border-radius:10px;background:#fafbff}.chat-attachment-preview{width:38px;height:38px;flex:0 0 38px;object-fit:cover;border:1px solid #e1e4ec;border-radius:7px;background:#fff}.chat-attachment-icon{width:38px;height:38px;flex:0 0 38px;border-radius:7px;background:#eef0ff;color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:800}.chat-attachment-details{display:grid;min-width:0;gap:1px;flex:1}.chat-attachment-details b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#344054;font-size:12px}.chat-attachment-details small{color:#98a2b3;font-size:11px}.chat-attachment-remove{width:26px;height:26px;flex:0 0 26px;border:0;border-radius:7px;background:transparent;color:#667085;font-size:20px;line-height:1;cursor:pointer}.chat-attachment-remove:hover{background:#fff1f0;color:#b42318}.media-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.media-gallery-video{grid-template-columns:1fr}.media-card{min-width:0;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fafbff}.media-card img,.media-card video{display:block;width:100%;max-width:100%;max-height:520px;margin:auto;object-fit:contain;border-radius:8px;background:#fff}.media-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.media-actions .btn{min-height:34px;padding:6px 10px;font-size:12px}.media-error{padding:14px;border:1px dashed #fecdca;border-radius:8px;background:#fffbfa;color:#b42318;font-size:12px;white-space:normal}.media-empty{color:#475467}.media-empty strong{display:block;margin-bottom:10px;color:#b42318}.media-response{max-height:300px;margin:0;padding:12px;overflow:auto;border:1px solid var(--line);border-radius:10px;background:#f8f9fc;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;color:#475467}
@media(max-width:640px){.chat-attachments{grid-template-columns:1fr}.media-gallery{grid-template-columns:1fr}.media-actions .btn{flex:1}}