:root{--bg:#f6f7f9;--panel:#fff;--panel-soft:#f1f4f8;--text:#18202d;--muted:#667085;--line:#d8dee8;--primary:#176b87;--primary-strong:#0f5065;--accent:#c4752d;--ok:#16835c;--danger:#b42318}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:244px 1fr;min-height:100vh}.sidebar{background:#111827;color:#f9fafb;padding:20px 16px}.brand{display:flex;flex-direction:column;gap:4px;padding:4px 8px 24px}.brand-title{font-size:18px;font-weight:700}.brand-subtitle{color:#b7c0d1;font-size:12px}.nav{display:grid;grid-gap:4px;gap:4px}.nav-item{display:flex;align-items:center;gap:10px;width:100%;height:40px;border:0;border-radius:6px;background:transparent;color:#d7deea;cursor:pointer;padding:0 10px;text-align:left}.nav-item.active,.nav-item:hover{background:#233044;color:#fff}.main{display:grid;grid-template-rows:64px 1fr;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);background:var(--panel);padding:0 24px}.topbar h1{margin:0;font-size:20px}.user-pill{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}.content{padding:24px;overflow:auto}.content.agent-content{padding:0;overflow:hidden}.agent-chat-shell{display:grid;grid-template-columns:250px minmax(0,1fr);height:calc(100vh - 64px);background:#fff}.chat-history{display:flex;min-width:0;flex-direction:column;border-right:1px solid #e8e8e8;background:#f7f7f8;padding:12px}.new-chat-button{display:flex;align-items:center;gap:10px;width:100%;border:1px solid #dedede;border-radius:10px;background:#fff;color:#202123;cursor:pointer;padding:11px 12px;font-weight:600;text-align:left}.chat-history-item:hover,.new-chat-button:hover{background:#ececf1}.chat-history-label{margin:22px 8px 8px;color:#8e8ea0;font-size:12px;font-weight:600}.chat-history-list{display:grid;grid-gap:3px;gap:3px;overflow-y:auto}.chat-history-item{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:9px;gap:9px;width:100%;border:0;border-radius:8px;background:transparent;color:#343541;cursor:pointer;padding:10px;text-align:left}.chat-history-item.active{background:#e7e7eb}.chat-history-item span{overflow:hidden;font-size:13px;text-overflow:ellipsis;white-space:nowrap}.chat-history-empty{margin:8px;color:#8e8ea0;font-size:13px}.chat-main{display:grid;grid-template-rows:58px minmax(0,1fr) auto;min-width:0;background:#fff}.chat-toolbar{position:relative;z-index:4;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ececec;padding:0 18px}.chat-toolbar>div{display:flex;align-items:center;gap:8px}.chat-agent-select{max-width:260px;border:0;border-radius:7px;background:transparent;color:#202123;cursor:pointer;padding:7px 4px;font-size:16px;font-weight:650}.chat-agent-select:hover{background:#f4f4f4}.runtime-dot{width:7px;height:7px;border-radius:50%;background:#d97706}.runtime-dot.healthy{background:#10a37f}.chat-runtime-label{color:#8e8ea0;font-size:12px}.chat-context{position:relative}.chat-context summary{display:flex;align-items:center;gap:7px;border-radius:8px;color:#565869;cursor:pointer;list-style:none;padding:8px 10px;font-size:13px}.chat-context summary:hover{background:#f4f4f4}.chat-context-menu{position:absolute;top:42px;right:0;display:grid;grid-gap:12px;gap:12px;width:290px;border:1px solid #e5e5e5;border-radius:12px;background:#fff;box-shadow:0 12px 32px rgba(0,0,0,.12);padding:14px}.chat-context-menu label{display:grid;grid-gap:5px;gap:5px;color:#6e6e80;font-size:12px;font-weight:600}.chat-context-menu select{width:100%;border:1px solid #dedede;border-radius:8px;background:#fff;padding:8px;color:#202123}.chat-thread{overflow-y:auto;scroll-behavior:smooth}.chat-thread.empty{display:grid;place-items:center}.chat-welcome{width:min(680px,calc(100% - 40px));margin:0 auto;text-align:center}.agent-mark{display:grid;width:52px;height:52px;margin:0 auto 18px;place-items:center;border-radius:50%;background:#202123;color:#fff}.chat-welcome h2{margin:0 0 8px;color:#202123;font-size:26px}.chat-welcome p{margin:0 auto 28px;color:#6e6e80;font-size:14px;line-height:1.6}.prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.prompt-grid button{min-height:72px;border:1px solid #e5e5e5;border-radius:12px;background:#fff;color:#343541;cursor:pointer;padding:13px;text-align:left;line-height:1.45}.prompt-grid button:hover{background:#f7f7f8}.chat-messages{width:min(780px,calc(100% - 40px));margin:0 auto;padding:28px 0 120px}.chat-message{display:grid;grid-template-columns:32px minmax(0,1fr);grid-gap:14px;gap:14px;padding:18px 0}.message-avatar{display:grid;width:30px;height:30px;place-items:center;border-radius:50%;background:#202123;color:#fff;font-size:12px;font-weight:700}.chat-message.user .message-avatar{background:#7c5cff}.message-body{min-width:0;padding-top:3px}.message-body strong{display:block;margin-bottom:8px;color:#202123;font-size:14px}.message-content{color:#343541;font-size:15px;line-height:1.75;overflow-wrap:anywhere;white-space:pre-wrap}.typing{display:flex;gap:4px;padding-top:5px}.typing i{width:5px;height:5px;border-radius:50%;animation:chat-pulse 1s infinite alternate;background:#8e8ea0}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes chat-pulse{to{opacity:.25}}.chat-composer-wrap{background:linear-gradient(0deg,#fff 75%,hsla(0,0%,100%,0));padding:12px 20px 10px}.chat-composer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;grid-gap:10px;gap:10px;width:min(780px,100%);margin:0 auto;border:1px solid #dedede;border-radius:18px;background:#fff;box-shadow:0 2px 12px rgb(0 0 0/8%);padding:9px 10px 9px 16px}.chat-composer textarea{max-height:180px;min-height:32px;border:0;outline:0;resize:none;padding:6px 0;color:#202123;line-height:1.45}.chat-composer button{display:grid;width:34px;height:34px;border:0;border-radius:50%;place-items:center;background:#202123;color:#fff;cursor:pointer}.chat-composer button:disabled{background:#d7d7d7;cursor:default}.chat-composer-wrap>p{margin:7px 0 0;color:#8e8ea0;font-size:11px;text-align:center}.grid{display:grid;grid-gap:16px;gap:16px}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.panel h2{margin:0 0 12px;font-size:16px}.detail-panel{display:grid;grid-gap:20px;gap:20px}.detail-section{overflow-x:auto}.detail-section h3{margin:0 0 10px;font-size:14px}.metric{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.metric strong{font-size:28px}.muted{color:var(--muted)}.toolbar{display:flex;justify-content:space-between;margin-bottom:12px}.button,.toolbar{gap:8px;align-items:center}.button{display:inline-flex;justify-content:center;min-height:36px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--text);cursor:pointer;padding:0 12px}.button.primary{border-color:var(--primary);background:var(--primary);color:#fff}.button.primary:hover{background:var(--primary-strong)}.input,.select,.textarea{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);padding:9px 10px}.textarea{min-height:112px;resize:vertical}.form-grid{display:grid;grid-gap:10px;gap:10px}.filter-bar{display:grid;grid-template-columns:minmax(220px,2fr) repeat(4,minmax(130px,1fr)) auto;grid-gap:10px;gap:10px;align-items:center}.session-layout{display:grid;grid-template-columns:minmax(280px,.8fr) minmax(0,1.6fr);grid-gap:16px;gap:16px}.message-list,.session-list{display:grid;grid-gap:10px;gap:10px}.session-row{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding-bottom:10px}.session-open{display:grid;flex:1 1;grid-gap:4px;gap:4px;border:0;background:transparent;color:var(--text);cursor:pointer;text-align:left}.message{display:grid;grid-gap:8px;gap:8px;border-left:3px solid var(--line);background:var(--panel-soft);padding:12px}.message.assistant{border-left-color:var(--primary)}.message.user{border-left-color:var(--accent)}.reference-detail{margin:0;overflow:auto;color:var(--muted);font-size:12px;white-space:pre-wrap}.table{width:100%;border-collapse:collapse;font-size:14px}.panel{overflow-x:auto}.table td,.table th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top;max-width:360px;overflow-wrap:anywhere}.table th{font-weight:600}.table th,.tag{color:var(--muted)}.tag{display:inline-flex;align-items:center;min-height:24px;border-radius:4px;background:var(--panel-soft);padding:0 8px;font-size:12px}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.login-box{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:24px}.login-box h1{margin:0 0 8px;font-size:22px}.login-box p{margin:0 0 20px;color:var(--muted)}.error{color:var(--danger);font-size:14px}@media (max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:-webkit-sticky;position:sticky;top:0;z-index:10}.nav{grid-template-columns:repeat(3,minmax(0,1fr))}.agent-chat-shell,.filter-bar,.grid.cols-3,.session-layout{grid-template-columns:1fr}.chat-history{display:none}.chat-toolbar{padding:0 10px}.chat-runtime-label{display:none}.prompt-grid{grid-template-columns:1fr}}