:root{--ink:#182d3d;--muted:#697e8c;--teal:#245d7b;--line:#dce5e9;--bg:#f3f6f7}
body{background:var(--bg);color:var(--ink);font-family:"Segoe UI","Microsoft YaHei",sans-serif}
.rail{width:226px;padding:30px 17px;background:#fbfcfd;border-right-color:#dce5e9}
.brand{margin-bottom:50px}.brand small{letter-spacing:1.5px;color:#8293a0}.logo{background:#214f6c;border-radius:10px}
.workspace{color:#8a9aa7;font-size:11px;letter-spacing:.7px;margin-bottom:17px}.nav{color:#5c7180;font-size:13px;font-weight:500;margin-bottom:4px;border-radius:9px}.nav:hover{background:#eef3f6}.nav.active{background:#e5eef3;color:#164e70;font-weight:700}
main{margin-left:226px}header{background:#fbfcfdeb;border-bottom-color:#e3eaed;height:68px}.crumb{color:#82929c}.crumb b{color:#2d4a5f}.content{max-width:1530px;padding:38px 42px 62px}.eyebrow{color:#3d748d}.title-row{margin-bottom:27px}h1{font-size:30px;font-weight:680}.sub{font-size:13px;color:#6c7f8a}
.panel,.stat{border-color:#dfe7eb;border-radius:12px;box-shadow:0 2px 9px #18394b08}.btn{border-color:#d6e0e6;border-radius:8px}.btn:hover{background:#edf3f6}.primary{background:#245d7b;border-color:#245d7b}.primary:hover{background:#174963}.filters input,select,textarea{border-color:#d8e2e7;color:#2d4658}.filters input:focus,textarea:focus,select:focus{border-color:#4882a0;box-shadow:0 0 0 3px #e6f0f5}
.conversation-shell{overflow:hidden}.conversation-context{display:grid;grid-template-columns:160px minmax(280px,1fr) minmax(220px,300px);gap:22px;align-items:center;padding:20px 26px;background:#f8fafb;border-bottom:1px solid #e2eaee}.context-heading>span{display:block;color:#78909f;font-size:10px;letter-spacing:1.3px;margin-bottom:6px}.context-heading strong{font-size:17px;display:block}.context-heading small{font-size:11px;color:#6b8190;display:block;margin-top:4px}.context-control{display:flex;gap:10px;align-items:center}.context-control select{width:100%;min-width:0;padding:10px 13px}.context-control .btn{flex:none}.context-detail .identity-card{margin:0;padding:9px 12px;max-height:92px;overflow:auto;background:#fff;border-color:#e0e8ec}.context-detail .identity-name{font-size:11px;margin-bottom:5px}.context-detail .identity-name small{font-size:9px}.context-detail .identity-membership{padding:4px 0}.context-detail .identity-membership b,.context-detail .identity-membership p{font-size:10px}.context-detail .identity-hint{display:none}
.conversation-shell .chat-box{min-height:610px;border:0;border-radius:0}.conversation-title{padding:17px 27px}.conversation-title h2{font-size:13px}.conversation-shell .chat-messages{padding:26px 32px;max-height:none;min-height:360px}.conversation-shell .chat-empty{padding:24px 12px 34px;text-align:left;max-width:980px;margin:auto}.intro-copy{text-align:center;margin:0 auto 26px}.intro-kicker{color:#4c7990;font-size:11px;letter-spacing:1.5px;font-weight:700}.intro-copy h2{font-size:25px;letter-spacing:-.5px;margin:8px 0}.intro-copy p{margin:0;color:#71838f;font-size:12px}
.starter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.starter-card{position:relative;display:flex;flex-direction:column;gap:10px;text-align:left;background:#fff;border:1px solid #dfe8ec;border-radius:10px;padding:17px 38px 18px 18px;min-height:92px}.starter-card:hover{border-color:#79a7bc;background:#f9fcfd;transform:translateY(-1px);box-shadow:0 5px 14px #23506b12}.starter-card span{font-size:10px;color:#56819a;font-weight:700;letter-spacing:.7px}.starter-card b{font-size:13px;line-height:1.5;font-weight:550;color:#284153}.starter-card i{position:absolute;right:16px;bottom:17px;font-style:normal;color:#8ea6b3}.starter-card:last-child{grid-column:span 2}.conversation-shell .chat-input{padding:19px 27px;background:#fff}.conversation-shell .chat-input textarea{min-height:76px}.conversation-shell .chat-controls small{color:#91a1ab}.bubble.user{background:#e8f1f6}.bubble.assistant{background:#f6f8f9}.bubble .speaker{color:#628095}
.architecture-tabs{display:flex;gap:8px;margin:0 0 18px}.architecture-tabs button{padding:11px 19px;background:#fff;border:1px solid #dce6ea;border-radius:8px;color:#647987}.architecture-tabs button.active{background:#e5eef3;border-color:#acc8d6;color:#1e5776;font-weight:700}.architecture-stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(290px,42%);min-height:420px}.architecture-copy{padding:36px 42px}.architecture-copy h2{font-size:24px;line-height:1.5;max-width:540px}.architecture-points{margin-top:30px}.architecture-points>div{border-top:1px solid #e5ecef;padding:15px 0}.architecture-points h3{margin:0 0 5px;color:#2c5870}.architecture-points p{margin:0;color:#657a88;font-size:12px}.architecture-diagram{background:#edf3f6;border-left:1px solid #dce8ee;padding:34px;display:flex;flex-direction:column;justify-content:center;gap:12px}.architecture-diagram>span{font-size:11px;letter-spacing:1.5px;color:#648299;margin-bottom:6px}.diagram-step{background:#fff;border:1px solid #d9e6ec;border-radius:10px;padding:18px 22px;font-size:14px;font-weight:600;color:#2e5269}.diagram-step b{font-size:10px;color:#7ba2b7;margin-right:16px}.architecture-image{width:100%;height:100%;object-fit:contain;background:#fff;border-left:1px solid #dce8ee}
.history-stats{margin-bottom:30px}.section-intro{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:15px}.section-intro h2{font-size:18px}.section-intro p{font-size:11px;color:#718592;margin:0;max-width:520px}.history-list{display:grid;gap:13px}.history-run{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:18px;padding:22px 24px;align-items:start}.history-index{font-size:13px;color:#8aa4b4;font-variant-numeric:tabular-nums;font-weight:700;padding-top:2px}.history-title{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}.history-title h2{font-size:16px}.history-title span{font-size:11px;color:#83939e}.history-metrics{display:flex;flex-wrap:wrap;gap:14px;margin:13px 0;font-size:11px;color:#6b7f8d}.history-metrics b{font-size:14px;color:#294b60}.history-note{margin:0 0 12px;color:#415e70;font-size:12px}.history-observations{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.history-observations>div{background:#f6f9fa;border-radius:7px;padding:10px 12px}.history-observations strong{font-size:10px;color:#2b6a8a}.history-observations p{margin:4px 0 0;color:#657b88;font-size:11px;line-height:1.6}.history-open{font-size:11px}.filters{align-items:center}.filters .version-picker{flex:none}.filters .version-picker select{max-width:230px}
.conversation-shell .chat-box{min-height:520px}.conversation-shell .chat-messages{min-height:290px;padding-top:16px;padding-bottom:16px}.conversation-shell .chat-empty{padding-top:12px;padding-bottom:12px}.intro-copy{margin-bottom:18px}.starter-card{min-height:74px;padding-top:12px;padding-bottom:12px}.starter-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.starter-card:last-child{grid-column:auto}
@media(max-width:1100px){.starter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.starter-grid{grid-template-columns:1fr}}
@media(max-width:1180px){.conversation-context{grid-template-columns:150px minmax(0,1fr)}.context-detail{grid-column:1/-1}.context-detail .identity-card{max-height:none}.architecture-stage{grid-template-columns:1fr}.architecture-diagram{border-left:0;border-top:1px solid #dce8ee}.architecture-image{max-height:500px}.history-run{grid-template-columns:28px minmax(0,1fr)}.history-open{grid-column:2;justify-self:start}}
@media(max-width:760px){.rail{width:100%;padding:14px}.brand{margin:0 0 13px}.content{padding:22px 15px}main{margin:0}.conversation-context{grid-template-columns:1fr;padding:16px;gap:12px}.context-control{flex-wrap:wrap}.context-control .btn{width:100%}.context-detail{grid-column:auto}.conversation-shell .chat-messages{padding:18px}.starter-grid{grid-template-columns:1fr}.starter-card:last-child{grid-column:auto}.intro-copy h2{font-size:20px}.architecture-copy{padding:25px}.architecture-tabs{overflow:auto}.architecture-tabs button{white-space:nowrap}.history-stats{grid-template-columns:1fr 1fr}.history-observations{grid-template-columns:1fr}.history-run{padding:16px}.section-intro{display:block}.filters .version-picker{width:100%}.filters .version-picker select{max-width:none;width:100%}}

/* Identity layout refresh */
.architecture-stage--graphic{display:block}
.architecture-stage--graphic .architecture-copy{padding:30px 42px 26px}
.architecture-stage--graphic .architecture-copy h2{max-width:none}
.architecture-stage--graphic .architecture-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:30px;margin-top:20px}
.architecture-stage--graphic .architecture-figure{border-top:1px solid #dce8ee;overflow-x:auto;background:#f5f9fc}
.architecture-stage--graphic .architecture-image{display:block;width:100%;height:auto;max-height:none;border:0}
@media(max-width:760px){.architecture-stage--graphic .architecture-copy{padding:25px}.architecture-stage--graphic .architecture-points{grid-template-columns:1fr}.architecture-stage--graphic .architecture-image{min-width:900px}}
.conversation-context{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);gap:0;align-items:stretch;padding:0;background:#f7fafb}
.current-identity,.identity-switch{min-width:0;padding:18px 26px 20px}
.current-identity{border-right:1px solid #dfe8ed}
.context-section-title{color:#4d748a;font-size:11px;font-weight:700;letter-spacing:.7px;margin-bottom:10px}
.context-detail{min-width:0}
.context-detail .identity-card{max-height:150px;overflow-y:auto;margin:0;padding:11px 15px;background:#fff;border:1px solid #e0e8ec;border-radius:9px;scrollbar-width:thin}
.context-detail .identity-name{font-size:15px;font-weight:700;margin-bottom:5px;color:#243e50}
.context-detail .identity-membership{padding:6px 0}
.context-detail .identity-membership b{font-size:12px}
.context-detail .identity-membership p{font-size:11px;margin:3px 0 0}
.identity-switch{display:flex;flex-direction:column;align-items:stretch;justify-content:center}
.switch-description{color:#708592;font-size:11px;margin:0 0 12px}
.switch-label{font-size:11px;color:#536e7e;margin-bottom:6px;font-weight:600}
.identity-switch select{width:100%;min-width:0;padding:10px 13px;background:#fff}
.identity-switch .btn{align-self:flex-end;margin-top:10px;padding:10px 15px;font-size:12px}
@media(max-width:800px){.conversation-context{grid-template-columns:1fr}.current-identity{border-right:0;border-bottom:1px solid #dfe8ed}.current-identity,.identity-switch{padding:17px 20px}.context-detail .identity-card{max-height:170px}.identity-switch .btn{align-self:stretch}}

/* Workflow value copy */
.title-row .workflow-value{display:block;font-size:16px;font-weight:650;color:#284b60;line-height:1.55;margin-top:2px}
.title-row .workflow-value-detail{display:block;font-size:12px;font-weight:400;color:#6c7f8a;line-height:1.7;margin-top:4px;max-width:980px}