:root{font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif;color:#ededed;background:#101010;font-synthesis:none}*{box-sizing:border-box}html,body,#root{height:100%;overflow:hidden}body{margin:0;min-width:320px;background:#101010}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.54}.app-shell{display:flex;height:100dvh;min-height:100vh;overflow:hidden;background:#101010}.sidebar{width:264px;height:100%;min-height:0;flex:0 0 264px;display:flex;flex-direction:column;overflow:hidden;padding:12px 10px;border-right:1px solid #292929;background:#171717;transition:width .18s ease,flex-basis .18s ease}.sidebar.collapsed{width:60px;flex-basis:60px;align-items:center;padding-inline:8px}.sidebar-top{width:100%}.brand-row{display:flex;height:38px;align-items:center;gap:9px;padding:0 7px;font-size:15px;font-weight:680;white-space:nowrap}.brand-mark,.assistant-avatar,.hero-icon{display:grid;place-items:center;flex:0 0 auto;color:#121212;background:#e7e7e7}.brand-mark{width:25px;height:25px;border-radius:6px}.sidebar-toggle{margin-left:auto}.icon-button{display:inline-grid;place-items:center;width:32px;height:32px;padding:0;border:0;border-radius:6px;color:#d6d6d6;background:transparent}.icon-button:hover{background:#2a2a2a}.new-chat,.sync-row{width:100%;display:flex;align-items:center;gap:9px;border:0;border-radius:6px;color:#f1f1f1;background:transparent;text-align:left}.new-chat{height:42px;margin-top:11px;padding:0 10px;background:#2a2a2a;font-size:14px;font-weight:580}.new-chat:hover,.sync-row:hover{background:#353535}.sidebar.collapsed .new-chat{justify-content:center;padding:0}.sidebar-section{width:100%;margin-top:24px}.section-label{display:flex;align-items:center;gap:7px;padding:0 9px 8px;color:#9a9a9a;font-size:12px;font-weight:650}.sync-row{padding:8px 9px;color:#dedede;font-size:13px}.knowledge-count{display:flex;gap:7px;align-items:center;padding:8px 9px 0;color:#898989;font-size:12px}.status-dot{width:7px;height:7px;border-radius:50%;background:#59b987}.sources-list{min-height:0;flex:1;overflow-y:auto}.source-row{display:grid;grid-template-columns:16px 1fr;gap:8px;align-items:center;padding:8px 9px;border-radius:6px;color:#c8c8c8;text-decoration:none;font-size:13px}.source-row:hover{background:#242424}.source-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.source-status{grid-column:2;font-size:11px;color:#8d8d8d}.source-status.ready,.source-status.fixed{color:#6bc691}.source-status.error{color:#e58a8a}.source-status.pending_file_access{color:#d8ad62}.empty-source{padding:8px 9px;color:#777;font-size:12px}.sidebar-bottom{display:flex;align-items:center;gap:8px;width:100%;margin-top:auto;padding:9px 7px;color:#cfcfcf;font-size:12px}.sidebar-bottom strong,.sidebar-bottom small{display:block}.sidebar-bottom small{margin-top:2px;color:#898989}.operator-avatar{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;color:#171717;background:#bbd7be;font-size:10px;font-weight:700}.workspace{position:relative;display:flex;height:100%;min-height:0;flex:1;min-width:0;flex-direction:column;overflow:hidden;background:#101010}.workspace-header{display:flex;align-items:center;justify-content:center;height:60px;padding:0 30px}.model-select{display:flex;align-items:center;gap:7px;padding:8px 13px;border:1px solid #363636;border-radius:7px;color:#efefef;background:#1d1d1d;font-size:13px;font-weight:600}.header-state{position:absolute;right:30px;display:flex;align-items:center;gap:6px;color:#888;font-size:12px}.mobile-menu{display:none;position:absolute;left:14px}.conversation{flex:1;overflow-y:auto;padding:28px 24px 170px}.empty-chat{width:min(710px,100%);margin:min(17vh,160px) auto 0}.hero-icon{width:46px;height:46px;margin-bottom:22px;border-radius:8px}h1{margin:0;color:#f6f6f6;font-size:30px;line-height:1.25;letter-spacing:0}.empty-chat p{margin:12px 0 28px;color:#969696;font-size:15px}.starter-list{display:grid;gap:8px;max-width:570px}.starter-list button{display:flex;align-items:center;justify-content:space-between;min-height:45px;padding:10px 13px;border:1px solid #333;border-radius:7px;color:#cfcfcf;background:#1a1a1a;text-align:left;font-size:14px}.starter-list button:hover{border-color:#535353;background:#222;color:#fff}.message-list{width:min(780px,100%);margin:0 auto}.message{display:flex;gap:12px;margin-bottom:26px}.user-message{justify-content:flex-end}.assistant-avatar{width:30px;height:30px;margin-top:1px;border-radius:6px}.message-content{max-width:calc(100% - 44px)}.answer-text{white-space:pre-wrap;color:#e9e9e9;font-size:15px;line-height:1.7}.user-bubble{max-width:min(85%,540px);padding:10px 13px;border-radius:7px;color:#f3f3f3;background:#2a2a2a;font-size:15px;line-height:1.55;white-space:pre-wrap}.references{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}.references-title{flex-basis:100%;color:#929292;font-size:12px}.reference{display:inline-flex;max-width:100%;align-items:center;gap:6px;padding:6px 8px;border:1px solid #383838;border-radius:5px;color:#cfcfcf;background:#181818;font-size:12px;text-decoration:none}.reference:hover{background:#252525}.reference span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.thinking{display:flex;align-items:center;gap:4px;height:30px}.thinking span{width:5px;height:5px;border-radius:50%;background:#9d9d9d;animation:pulse 1.2s infinite}.thinking span:nth-child(2){animation-delay:.15s}.thinking span:nth-child(3){animation-delay:.3s}@keyframes pulse{50%{opacity:.25;transform:translateY(-2px)}}.composer-wrap{position:sticky;bottom:0;width:min(780px,calc(100% - 48px));margin:0 auto;padding:12px 0 20px;background:#101010}.composer-wrap:before{content:"";position:absolute;top:-35px;right:0;left:0;height:35px;background:linear-gradient(transparent,#101010);pointer-events:none}.composer{position:relative;display:flex;align-items:flex-end;gap:8px;min-height:58px;padding:10px;border:1px solid #3b3b3b;border-radius:8px;background:#222;box-shadow:0 6px 22px #0003}.composer:focus-within{border-color:#626262}.composer textarea{flex:1;max-height:150px;min-height:34px;padding:7px 2px;border:0;outline:0;resize:none;color:#ededed;background:transparent;font-size:15px;line-height:20px}.composer textarea::placeholder{color:#999}.add-button{color:#bbb}.send-button{display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px;border:0;border-radius:6px;color:#151515;background:#eee}.send-button:disabled{color:#797979;background:#3c3c3c}.composer-footnote{margin-top:8px;color:#777;text-align:center;font-size:11px}.spinning{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.notice{display:flex;align-items:center;gap:6px;margin-bottom:9px;color:#b7cdbd;font-size:12px}@media(max-width:720px){.sidebar{position:fixed;z-index:3;height:100vh;box-shadow:12px 0 35px #00000047}.sidebar.collapsed{display:none}.mobile-menu{display:grid}.workspace-header{justify-content:center}.header-state{display:none}.conversation{padding:20px 16px 160px}.empty-chat{margin-top:11vh}.empty-chat h1{font-size:26px}.empty-chat p{font-size:14px}.composer-wrap{width:calc(100% - 24px)}.starter-list button{font-size:13px}.message-list{width:100%}.user-bubble{max-width:92%}}