:root{
  --bg:#f5f7fb;--surface:#fff;--surface-2:#f8fafc;--text:#111827;--muted:#667085;
  --line:#e6eaf0;--brand:#5b5bd6;--brand-2:#7c3aed;--cyan:#0891b2;--green:#059669;
  --danger:#dc2626;--warning:#d97706;--shadow:0 18px 50px rgba(26,31,54,.08);--radius:18px;
  --sidebar:250px;--header:68px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}img{max-width:100%}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:13px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.nowrap{white-space:nowrap}.text-right{text-align:right}.text-center{text-align:center}
.container{width:min(1180px,calc(100% - 40px));margin:auto}.glass{background:rgba(255,255,255,.78);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.7)}
.site-header{position:sticky;top:0;z-index:40;height:var(--header);display:flex;align-items:center;border-bottom:1px solid rgba(226,232,240,.8);background:rgba(247,249,252,.84);backdrop-filter:blur(18px)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.02em}.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 8px 22px rgba(91,91,214,.28);font-weight:900}.brand small{display:block;font-size:10px;letter-spacing:.16em;color:var(--muted);font-weight:700}.nav{display:flex;gap:4px;align-items:center}.nav a{padding:9px 12px;border-radius:11px;color:#475467;font-size:14px;font-weight:600}.nav a:hover,.nav a.active{background:#fff;color:var(--brand);box-shadow:0 4px 18px rgba(31,41,55,.06)}.header-actions{display:flex;align-items:center;gap:10px}.mobile-toggle{display:none}
.btn{border:0;cursor:pointer;border-radius:12px;padding:10px 16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease;min-height:42px}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px rgba(91,91,214,.23)}.btn-secondary{background:#fff;color:#344054;border:1px solid var(--line)}.btn-soft{background:#eef0ff;color:var(--brand)}.btn-danger{background:#fff1f2;color:#be123c}.btn-sm{min-height:34px;padding:6px 11px;border-radius:10px;font-size:13px}.btn-block{width:100%}
.hero{position:relative;overflow:hidden;padding:92px 0 72px;background:radial-gradient(circle at 15% 10%,rgba(91,91,214,.17),transparent 36%),radial-gradient(circle at 88% 15%,rgba(8,145,178,.13),transparent 32%),linear-gradient(180deg,#fbfcff,#f5f7fb)}.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:36px 36px;mask-image:linear-gradient(to bottom,#000,transparent)}.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--brand);box-shadow:0 8px 24px rgba(31,41,55,.05)}.pulse{width:8px;height:8px;background:#10b981;border-radius:50%;box-shadow:0 0 0 5px rgba(16,185,129,.12)}h1{font-size:clamp(44px,6vw,72px);line-height:1.06;letter-spacing:-.052em;margin:22px 0 20px}.gradient-text{background:linear-gradient(120deg,var(--brand),var(--brand-2) 55%,var(--cyan));-webkit-background-clip:text;color:transparent}.hero p{font-size:19px;color:#667085;max-width:670px}.hero-actions{display:flex;gap:12px;margin:30px 0 28px}.trust-row{display:flex;flex-wrap:wrap;gap:18px;color:#667085;font-size:13px}.trust-row span{display:flex;align-items:center;gap:6px}.check{color:var(--green);font-weight:900}
.preview-window{border-radius:24px;padding:12px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.95);box-shadow:0 30px 80px rgba(48,46,112,.16);transform:perspective(1000px) rotateY(-3deg) rotateX(1deg)}.window-top{height:38px;display:flex;align-items:center;gap:7px;padding:0 8px}.dot{width:9px;height:9px;border-radius:50%;background:#e5e7eb}.chat-demo{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.demo-head{display:flex;justify-content:space-between;align-items:center;padding:15px 17px;border-bottom:1px solid var(--line)}.model-pill{background:#f0f1ff;color:var(--brand);padding:7px 10px;border-radius:9px;font-size:12px;font-weight:700}.demo-body{padding:20px;min-height:310px;background:linear-gradient(180deg,#fff,#fafbff)}.bubble{max-width:82%;padding:13px 15px;border-radius:15px;margin-bottom:14px;font-size:14px}.bubble.user{margin-left:auto;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-bottom-right-radius:5px}.bubble.ai{background:#f2f4f7;border:1px solid #eaecf0;border-bottom-left-radius:5px}.demo-input{margin:0 16px 16px;padding:12px 12px 12px 16px;border:1px solid var(--line);border-radius:14px;display:flex;justify-content:space-between;color:#98a2b3;font-size:13px}.send-mini{width:32px;height:32px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center}
.section{padding:82px 0}.section.alt{background:#fff}.section-head{text-align:center;max-width:720px;margin:0 auto 42px}.section-head h2{font-size:38px;letter-spacing:-.035em;margin:10px 0}.section-head p{color:var(--muted);font-size:17px}.grid{display:grid;gap:20px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.feature-card,.price-card,.model-card,.app-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 30px rgba(31,41,55,.035);transition:.18s}.feature-card:hover,.model-card:hover,.app-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d8d8ff}.icon-box{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#eef0ff,#f5edff);color:var(--brand);font-size:22px}.feature-card h3,.app-card h3,.model-card h3{margin:18px 0 8px}.feature-card p,.app-card p,.model-card p{color:var(--muted);font-size:14px}.tag-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}.tag{padding:5px 9px;border-radius:999px;background:#f2f4f7;color:#475467;font-size:11px;font-weight:700}.tag.brand{background:#eff0ff;color:var(--brand)}.cta-band{border-radius:26px;padding:48px;background:linear-gradient(135deg,#24215d,#5b3bc4 55%,#087f9b);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:30px;box-shadow:0 25px 60px rgba(46,40,120,.22)}.cta-band h2{font-size:34px;margin:0 0 8px}.cta-band p{color:rgba(255,255,255,.75);margin:0}.footer{padding:38px 0;border-top:1px solid var(--line);background:#fff}.footer-inner{display:flex;justify-content:space-between;gap:30px;color:var(--muted);font-size:13px}
.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:#fff}.auth-art{padding:60px;display:flex;flex-direction:column;justify-content:space-between;background:radial-gradient(circle at 20% 10%,rgba(124,58,237,.30),transparent 35%),linear-gradient(140deg,#19173e,#42349e 55%,#087f9b);color:#fff}.auth-art h1{font-size:50px}.auth-art p{color:rgba(255,255,255,.72)}.auth-list{display:grid;gap:14px}.auth-list div{padding:13px 15px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.07);border-radius:13px}.auth-main{display:grid;place-items:center;padding:40px}.auth-card{width:min(440px,100%)}.auth-card h2{font-size:30px;margin:0 0 8px}.tabs{display:flex;background:#f2f4f7;padding:4px;border-radius:12px;margin:26px 0}.tabs button{flex:1;border:0;background:transparent;padding:9px;border-radius:9px;font-weight:700;color:var(--muted);cursor:pointer}.tabs button.active{background:#fff;color:var(--brand);box-shadow:0 3px 12px rgba(31,41,55,.08)}
.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:700;color:#344054;margin-bottom:7px}.input,.select,.textarea{width:100%;border:1px solid #dfe3ea;background:#fff;border-radius:12px;padding:11px 13px;outline:none;transition:.15s}.input:focus,.select:focus,.textarea:focus{border-color:#9999f6;box-shadow:0 0 0 4px rgba(91,91,214,.1)}.textarea{resize:vertical;min-height:96px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-help{font-size:12px;color:var(--muted);margin-top:5px}.alert{padding:12px 14px;border-radius:12px;font-size:13px;margin:12px 0}.alert-info{background:#eff6ff;color:#1d4ed8}.alert-success{background:#ecfdf3;color:#047857}.alert-error{background:#fff1f2;color:#be123c}.alert-warning{background:#fffbeb;color:#b45309}
.app-shell{min-height:100vh}.dash-header{height:var(--header);position:fixed;left:0;right:0;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);display:flex;align-items:center}.dash-header-inner{width:100%;display:flex;align-items:center;justify-content:space-between;padding:0 22px}.user-chip{display:flex;align-items:center;gap:11px}.avatar{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#e8e8ff,#e9f9fc);display:grid;place-items:center;color:var(--brand);font-weight:800}.balance-chip{padding:7px 10px;border:1px solid var(--line);background:#fff;border-radius:10px;font-weight:700;font-size:13px}.sidebar{position:fixed;left:0;top:var(--header);bottom:0;width:var(--sidebar);background:#fff;border-right:1px solid var(--line);padding:18px 13px;overflow:auto;z-index:35}.side-label{font-size:10px;letter-spacing:.12em;color:#98a2b3;font-weight:800;padding:12px 12px 7px}.side-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;color:#475467;font-size:14px;font-weight:600;margin:2px 0}.side-link:hover,.side-link.active{background:#eff0ff;color:var(--brand)}.side-icon{width:22px;text-align:center}.dash-main{margin-left:var(--sidebar);padding:calc(var(--header) + 26px) 28px 38px;min-height:100vh}.dash-container{max-width:1280px;margin:auto}.page-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.page-title-row h1{font-size:28px;letter-spacing:-.03em;margin:0 0 5px}.page-title-row p{margin:0;color:var(--muted)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.stat-label{font-size:12px;color:var(--muted);font-weight:700}.stat-value{font-size:26px;font-weight:800;margin-top:6px;letter-spacing:-.03em}.stat-foot{font-size:11px;color:#98a2b3;margin-top:6px}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 6px 24px rgba(31,41,55,.025);margin-bottom:20px}.panel-head{padding:17px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:15px}.panel-head h3{margin:0;font-size:16px}.panel-body{padding:20px}.panel-empty{text-align:center;padding:48px 20px;color:var(--muted)}
.workspace{display:grid;grid-template-columns:250px minmax(0,1fr);height:calc(100vh - var(--header) - 54px);min-height:600px;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.chat-history{border-right:1px solid var(--line);background:#fafbfc;padding:14px;overflow:auto}.new-chat{width:100%;border:1px dashed #cfd4df;background:#fff;border-radius:12px;padding:11px;color:var(--brand);font-weight:700;cursor:pointer}.history-item{padding:11px;border-radius:10px;margin-top:8px;font-size:13px;color:#475467;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item:hover,.history-item.active{background:#eef0ff;color:var(--brand)}.chat-area{display:flex;flex-direction:column;min-width:0}.chat-toolbar{height:60px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 18px}.chat-messages{flex:1;overflow:auto;padding:26px max(22px,8%);background:linear-gradient(180deg,#fff,#fcfcff)}.welcome-chat{max-width:680px;margin:80px auto 0;text-align:center}.welcome-chat .brand-mark{margin:auto;width:54px;height:54px;border-radius:18px}.welcome-chat h2{font-size:28px;margin:18px 0 8px}.quick-prompts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:25px}.quick-prompt{padding:13px;text-align:left;border:1px solid var(--line);background:#fff;border-radius:12px;color:#475467;cursor:pointer}.quick-prompt:hover{border-color:#bcbcf6;background:#fafaff}.message{display:flex;gap:12px;max-width:850px;margin:0 auto 22px}.message.user{flex-direction:row-reverse}.message-avatar{width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:#eef0ff;color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:800}.message.user .message-avatar{background:#1f2937;color:#fff}.message-content{padding:13px 16px;border:1px solid var(--line);border-radius:15px;background:#fff;white-space:pre-wrap;word-break:break-word;max-width:calc(100% - 48px)}.message.user .message-content{background:#f2f4f7;border-color:#eaecf0}.typing:after{content:"";display:inline-block;width:5px;height:15px;background:var(--brand);margin-left:4px;vertical-align:-2px;animation:blink .8s infinite}@keyframes blink{50%{opacity:0}}.chat-compose{padding:14px 18px 18px;border-top:1px solid var(--line);background:#fff}.compose-box{border:1px solid #d9dde5;border-radius:15px;padding:10px;box-shadow:0 8px 24px rgba(31,41,55,.04)}.compose-box textarea{width:100%;border:0;outline:0;resize:none;min-height:56px;max-height:180px;padding:4px 6px}.compose-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px}.file-preview{font-size:12px;color:var(--brand);padding:5px 8px;background:#eff0ff;border-radius:8px}.icon-btn{width:36px;height:36px;border-radius:10px;border:0;background:#f2f4f7;color:#475467;cursor:pointer}.icon-btn.primary{background:var(--brand);color:#fff}
.apps-toolbar{display:flex;gap:10px;margin-bottom:20px}.search{position:relative;flex:1}.search input{padding-left:38px}.search:before{content:"⌕";position:absolute;left:14px;top:8px;color:#98a2b3;font-size:20px}.app-card{cursor:pointer}.app-card .icon-box{margin-bottom:15px}.app-card h3{margin:0 0 7px}.app-meta{display:flex;justify-content:space-between;align-items:center;margin-top:18px;font-size:12px;color:var(--muted)}
.model-top{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}.provider-logo{width:42px;height:42px;border-radius:13px;background:#f2f4f7;display:grid;place-items:center;font-weight:900;color:#344054}.price-line{display:flex;gap:15px;margin-top:18px;padding-top:15px;border-top:1px solid var(--line)}.price-line strong{display:block;font-size:14px}.price-line span{font-size:11px;color:var(--muted)}
.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;font-size:13px}.table th{text-align:left;color:#667085;background:#fafbfc;font-size:11px;letter-spacing:.04em;text-transform:uppercase;padding:11px 12px;border-bottom:1px solid var(--line)}.table td{padding:12px;border-bottom:1px solid #f0f2f5;vertical-align:middle}.table tr:last-child td{border-bottom:0}.status{display:inline-flex;align-items:center;gap:6px;padding:4px 8px;border-radius:999px;font-size:11px;font-weight:700}.status.active,.status.approved,.status.success{background:#ecfdf3;color:#047857}.status.pending{background:#fffbeb;color:#b45309}.status.disabled,.status.rejected,.status.failed{background:#fff1f2;color:#be123c}.key-secret{background:#17172f;color:#d9dcff;padding:15px;border-radius:12px;word-break:break-all}
.modal-backdrop{position:fixed;inset:0;z-index:100;background:rgba(15,23,42,.5);display:grid;place-items:center;padding:20px}.modal{width:min(600px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:20px;box-shadow:0 30px 100px rgba(0,0,0,.25)}.modal-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.modal-head h3{margin:0}.modal-body{padding:20px}.modal-foot{padding:15px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}.close{border:0;background:#f2f4f7;width:32px;height:32px;border-radius:9px;cursor:pointer}
.toast-wrap{position:fixed;right:20px;top:85px;z-index:200;display:grid;gap:10px}.toast{background:#101828;color:#fff;padding:12px 15px;border-radius:12px;box-shadow:0 15px 45px rgba(0,0,0,.18);font-size:13px;max-width:360px}.toast.error{background:#b42318}.toast.success{background:#067647}
.code{background:#111827;color:#d1d5db;border-radius:14px;padding:17px;overflow:auto;font-size:13px;line-height:1.7}.code .accent{color:#a5b4fc}.docs-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:28px}.docs-nav{position:sticky;top:90px;align-self:start;background:#fff;border:1px solid var(--line);border-radius:15px;padding:12px}.docs-nav a{display:block;padding:9px 10px;border-radius:9px;font-size:13px;color:#667085}.docs-nav a:hover{background:#f2f4f7;color:var(--brand)}.docs-content{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px}.docs-content h1{font-size:34px;margin-top:0}.docs-content h2{padding-top:28px;margin-top:28px;border-top:1px solid var(--line)}.docs-content p,.docs-content li{color:#475467}
@media(max-width:1000px){.nav{display:none}.mobile-toggle{display:inline-flex}.hero-grid{grid-template-columns:1fr;gap:40px}.preview-window{transform:none;max-width:700px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.stats-grid{grid-template-columns:repeat(2,1fr)}.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none;box-shadow:20px 0 50px rgba(0,0,0,.12)}.dash-main{margin-left:0}.workspace{grid-template-columns:1fr}.chat-history{display:none}.auth-page{grid-template-columns:1fr}.auth-art{display:none}.docs-layout{grid-template-columns:1fr}.docs-nav{display:none}}
@media(max-width:640px){.container{width:min(100% - 26px,1180px)}.header-actions .btn-secondary{display:none}.hero{padding:62px 0 48px}h1{font-size:43px}.hero p{font-size:16px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.grid-3,.grid-4{grid-template-columns:1fr}.section{padding:58px 0}.section-head h2{font-size:30px}.cta-band{padding:30px;display:block}.cta-band .btn{margin-top:20px}.footer-inner{display:block}.form-row{grid-template-columns:1fr}.dash-header-inner{padding:0 12px}.dash-main{padding:calc(var(--header) + 18px) 12px 28px}.page-title-row{display:block}.page-title-row .btn{margin-top:12px}.stats-grid{grid-template-columns:1fr 1fr;gap:10px}.stat-card{padding:14px}.stat-value{font-size:21px}.workspace{height:calc(100vh - var(--header) - 40px);border-radius:12px}.chat-toolbar{padding:0 10px}.chat-messages{padding:20px 12px}.quick-prompts{grid-template-columns:1fr}.chat-compose{padding:10px}.auth-main{padding:24px}.docs-content{padding:20px}.site-header .brand small{display:none}}