:root{color-scheme:light;--bg:#f5f7f4;--surface:#fff;--sidebar:#ecf0eb;--text:#20312b;--muted:#79857d;--soft:#eef2ed;--border:#e0e7de;--accent:#2f7258;--accent-hover:#255d47;--accent-soft:#e5eee4;--user:#e7eee4;--danger:#aa453e;--danger-bg:#fbefed;--shadow:0 16px 55px #20312b0a;--menu-shadow:0 12px 35px #1c34251a;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-synthesis:none}
:root[data-theme=dark]{color-scheme:dark;--bg:#161c19;--surface:#1d2520;--sidebar:#121914;--text:#e0e9e0;--muted:#98a69b;--soft:#263029;--border:#323e34;--accent:#98c6a2;--accent-hover:#b2d8b9;--accent-soft:#2c3d30;--user:#2c3c2e;--danger:#efa69e;--danger-bg:#3a2726;--shadow:0 16px 55px #00000012;--menu-shadow:0 12px 35px #00000040}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-text-size-adjust:100%}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}input:focus,textarea:focus{outline:none}a{color:inherit}button{color:inherit}button,select{touch-action:manipulation}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.access-view{height:100%;height:100dvh;display:flex;align-items:center;justify-content:center;padding:32px 24px;background:radial-gradient(ellipse at 50% 35%,var(--accent-soft) 0,transparent 65%)}.access-card{width:100%;max-width:380px}.brand-icon{border-radius:17px;margin-bottom:32px}.eyebrow{display:block;color:var(--accent);font-size:12px;letter-spacing:.12em;font-weight:600}.access-card h1{font-size:32px;letter-spacing:-.04em;margin:10px 0 8px;font-weight:650}.access-description{color:var(--muted);margin:0 0 32px;font-size:14px}#login-form{display:flex;flex-direction:column;gap:10px}#login-form label{font-size:13px;font-weight:600}#password{height:52px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:0 15px;font-size:16px;color:var(--text);transition:border-color .2s,box-shadow .2s}#password:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}#password::placeholder{color:var(--muted);font-size:14px}.primary-button{border:0;border-radius:12px;background:var(--accent);color:var(--surface);padding:13px 18px;font-weight:600;transition:background .2s;margin-top:8px}.primary-button:hover{background:var(--accent-hover)}.primary-button:disabled{opacity:.6}.primary-button span{margin-left:8px}.access-note{color:var(--muted);font-size:12px;text-align:center;margin-top:17px}.access-footer{position:fixed;bottom:max(25px,env(safe-area-inset-bottom));color:var(--muted);font-size:11px;letter-spacing:.08em}.loading-card{text-align:center}.loading-card .brand-icon{margin-bottom:12px}.loading-card h1{font-size:25px}.loading-card p{color:var(--muted);font-size:14px}.loading-card button{padding-right:28px;padding-left:28px}.form-error{font-size:13px;color:var(--danger);margin:0;overflow-wrap:anywhere}
.app-layout{display:flex;height:100%;height:100dvh}.sidebar{width:254px;background:var(--sidebar);border-right:1px solid var(--border);padding:28px 18px 20px;display:flex;flex-direction:column;flex-shrink:0}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;padding-left:7px}.brand img{border-radius:12px}.brand>span{font-size:16px;font-weight:650;letter-spacing:.03em}.brand small{display:block;font-size:10px;color:var(--muted);font-weight:400;letter-spacing:.09em;margin-top:1px}.space-card{margin-top:45px;display:flex;align-items:center;gap:10px;background:var(--surface);padding:14px 12px;border:1px solid var(--border);border-radius:13px;position:relative}.space-icon{font-size:22px;color:var(--accent)}.space-card strong{font-size:13px;font-weight:600}.space-card p{font-size:10px;color:var(--muted);margin:3px 0 0}.count-label{font-size:10px;color:var(--muted);position:absolute;right:11px;top:14px;max-width:24px;overflow:hidden}.sidebar-note{padding:28px 13px}.tiny-label{color:var(--muted);font-size:10px;letter-spacing:.14em}.sidebar-note p{font-size:12px;line-height:1.9;color:var(--muted);margin-top:9px}.sidebar-bottom{margin-top:auto;padding:12px 7px 0}.sync-description{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:7px;margin:0 0 18px}.sync-dot{width:5px;height:5px;border-radius:100%;background:var(--accent)}.utility-button{display:flex;align-items:center;gap:10px;border:0;background:none;font-size:12px;color:var(--muted);width:100%;padding:9px 6px;text-align:left;border-radius:7px}.utility-button:hover{background:var(--soft);color:var(--text)}.utility-button>span:first-child{font-size:17px;line-height:1;width:18px;text-align:center}.chat-main{min-width:0;display:flex;flex-direction:column;flex:1;position:relative}.chat-header{min-height:83px;padding:19px 36px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;gap:12px}.header-title{display:flex;align-items:center;gap:9px}.header-title h1{font-size:16px;font-weight:600;margin:0;letter-spacing:.015em}.header-title p{font-size:10px;color:var(--muted);margin:1px 0 0;max-width:350px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.header-actions{display:flex;align-items:center;gap:13px}.connection-status{display:flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:20px;padding:4px 10px;font-size:10px;color:var(--muted);white-space:nowrap}.status-dot{width:5px;height:5px;flex-shrink:0;background:var(--muted);border-radius:50%}.connection-status[data-status=online] .status-dot{background:var(--accent)}.connection-status[data-status=error] .status-dot{background:var(--danger)}.mobile-brand,.mobile-menu-wrap{display:none}.app-error{background:var(--danger-bg);color:var(--danger);padding:9px 22px;display:flex;justify-content:center;gap:14px;align-items:center;flex-shrink:0;font-size:12px}.app-error>span{overflow-wrap:anywhere}.app-error button{background:none;border:0;color:var(--danger);text-decoration:underline;white-space:nowrap;padding:4px}.conversation{flex:1;min-height:0;overflow-y:auto;padding:16px 32px 30px;scrollbar-gutter:stable;overscroll-behavior:contain;scroll-behavior:auto;outline:none}.conversation::-webkit-scrollbar{width:6px}.conversation::-webkit-scrollbar-thumb{background:var(--border);border-radius:9px}.empty-state{max-width:720px;margin:clamp(36px,10vh,140px) auto 35px;text-align:center}.greeting-symbol{font-size:54px;color:var(--accent);line-height:1.3;font-weight:400;margin-bottom:21px}.empty-state .eyebrow{font-size:11px}.empty-state h2{font-size:31px;font-weight:550;letter-spacing:-.03em;margin:12px 0 10px}.empty-state>p:last-of-type{font-size:13px;color:var(--muted);line-height:1.9;margin:0}.mobile-break{display:none}.suggestions{display:flex;justify-content:center;gap:10px;margin-top:31px;flex-wrap:wrap}.suggestions button{border:1px solid var(--border);background:var(--surface);font-size:11px;color:var(--muted);padding:11px 15px;border-radius:10px;text-align:left;transition:border-color .2s,color .2s}.suggestions button span{color:var(--accent);font-size:16px;vertical-align:-1px;margin-right:8px}.suggestions button:hover{border-color:var(--accent);color:var(--text)}.messages,.generation-status{max-width:780px;margin:0 auto}.message{margin:0 0 28px;display:flex;flex-direction:column;align-items:flex-start}.message-meta{display:flex;align-items:center;gap:8px;margin:0 0 9px;color:var(--muted);font-size:11px}.assistant-avatar{display:inline-flex;align-items:center;justify-content:center;width:23px;height:23px;border-radius:8px;background:var(--accent-soft);color:var(--accent);font-size:16px}.message-source{font-size:9px;padding:1px 5px;border:1px solid var(--border);border-radius:4px;margin-left:2px;color:var(--muted)}.message-content{white-space:pre-wrap;overflow-wrap:anywhere;word-break:normal;line-height:1.9;font-size:14px;max-width:100%;tab-size:4}.message[data-role=user]{align-items:flex-end;margin-top:9px;margin-bottom:27px}.message[data-role=user] .message-meta{padding-right:3px;margin-bottom:6px;font-size:10px}.message[data-role=user] .message-content{background:var(--user);border-radius:17px 17px 4px 17px;padding:12px 17px;max-width:90%;font-size:14px;line-height:1.8}.message[data-role=assistant] .message-content{padding-left:31px;width:100%}.message[data-pending=true] .message-content:empty::after{content:"";display:inline-block;width:6px;height:15px;background:var(--accent);opacity:.7;animation:pulse 1.2s infinite}.generation-status{display:flex;align-items:center;gap:9px;padding:0 0 2px 31px;font-size:12px;color:var(--muted)}.thinking-indicator{display:inline-flex;gap:3px}.thinking-indicator i{height:4px;width:4px;border-radius:50%;background:var(--accent);animation:pulse 1.2s infinite}.thinking-indicator i:nth-child(2){animation-delay:.18s}.thinking-indicator i:nth-child(3){animation-delay:.36s}@keyframes pulse{0%,80%,100%{opacity:.3}40%{opacity:1}}
.composer-area{flex-shrink:0;padding:0 32px max(15px,env(safe-area-inset-bottom));position:relative}.composer-inner{max-width:780px;margin:auto}.composer{border:1px solid var(--border);background:var(--surface);border-radius:19px;box-shadow:var(--shadow);padding:14px 14px 11px;transition:border-color .2s}.composer:focus-within{border-color:color-mix(in srgb,var(--accent) 50%,var(--border))}.composer textarea{width:100%;resize:none;border:0;background:none;color:var(--text);font-size:15px;line-height:1.65;display:block;padding:0 2px;min-height:30px;max-height:min(26dvh,220px);overflow-y:auto}.composer textarea::placeholder{color:var(--muted);font-size:14px}.composer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:13px}.effort-control{position:relative;display:flex;align-items:center;gap:5px;border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:4px 7px;height:30px}.effort-symbol{font-size:14px;color:var(--accent);line-height:1}.effort-control select{appearance:none;-webkit-appearance:none;border:0;background:none;font-size:11px;color:var(--text);padding:0 17px 0 0;cursor:pointer;line-height:20px;min-height:20px}.select-chevron{position:absolute;right:8px;top:2px;color:var(--muted);font-size:14px;pointer-events:none}.send-control{display:flex;align-items:center;gap:13px}.keyboard-hint{font-size:9px;color:var(--muted)}.send-button{width:35px;height:35px;background:var(--accent);color:var(--surface);border:0;border-radius:11px;display:flex;align-items:center;justify-content:center;transition:background .2s,opacity .2s}.send-button:hover:not(:disabled){background:var(--accent-hover)}.send-button:disabled{background:var(--soft);color:var(--muted)}.composer-note{text-align:center;color:var(--muted);font-size:9px;margin:9px 0 0;letter-spacing:.02em}.composer-error{padding:0 7px 10px;font-size:12px}.scroll-bottom{position:absolute;left:50%;transform:translateX(-50%);bottom:calc(100% + 14px);border:1px solid var(--border);border-radius:25px;background:var(--surface);color:var(--muted);box-shadow:var(--menu-shadow);padding:7px 14px;font-size:13px;white-space:nowrap}.scroll-bottom span{font-size:10px;margin-left:5px}.toast{position:fixed;z-index:20;bottom:max(38px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);padding:10px 18px;background:var(--text);color:var(--bg);box-shadow:var(--menu-shadow);border-radius:10px;font-size:12px;max-width:calc(100% - 32px);text-align:center}
.generation-note{font-size:10px;opacity:.8;margin-left:5px}
.desktop-sync-info{margin:0 0 17px;padding:0 5px 15px;border-bottom:1px solid var(--border);color:var(--muted)}.desktop-sync-info strong{display:flex;align-items:center;gap:7px;color:var(--text);font-size:11px;font-weight:600}.desktop-sync-dot{width:5px;height:5px;border-radius:50%;background:var(--muted);flex-shrink:0}.desktop-sync-info[data-desktop-status=recent] .desktop-sync-dot{background:var(--accent)}.desktop-sync-info p{font-size:10px;line-height:1.7;margin:7px 0 0;overflow-wrap:anywhere}.desktop-sync-info .desktop-sync-note{font-size:9px;opacity:.85;margin-top:8px}.utility-button:disabled,.mobile-menu button:disabled{opacity:.45}.utility-button:disabled:hover{background:none;color:var(--muted)}.clipboard-buffer{position:fixed;left:-10000px;top:0;width:1px;height:1px;padding:0;border:0;opacity:0;pointer-events:none}.mobile-menu-wrap .mobile-menu{min-width:224px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 100px);overflow-y:auto}.mobile-menu .desktop-sync-info{margin:0 6px 5px;padding:10px 6px 13px}.mobile-menu .desktop-sync-info p{font-size:11px}.mobile-menu .desktop-sync-info .desktop-sync-note{font-size:10px}.mobile-menu .desktop-sync-info strong{font-size:12px}
@media(min-width:1500px){.sidebar{width:280px;padding-left:24px;padding-right:24px}.conversation{padding-top:30px}.chat-header{padding-left:45px;padding-right:45px}}
@media(max-width:1000px){.sidebar{width:220px;padding-left:13px;padding-right:13px}.space-card{padding-left:10px;gap:8px}.space-card p{font-size:9px}.count-label{display:none}.chat-header{padding-left:25px;padding-right:25px}.conversation{padding-left:22px;padding-right:22px}.composer-area{padding-left:22px;padding-right:22px}.message[data-role=assistant] .message-content{padding-left:0}.generation-status{padding-left:0}}
@media(max-width:700px){.sidebar{display:none}.chat-header{min-height:72px;padding:calc(13px + env(safe-area-inset-top)) 19px 13px;border-bottom:1px solid var(--border)}.mobile-brand{display:block;border-radius:10px}.header-title h1{font-size:14px}.header-title p{font-size:9px;max-width:170px}.header-actions{gap:5px}.connection-status{font-size:9px;padding:3px 7px;gap:5px}.mobile-menu-wrap{display:block;position:relative}.icon-button{border:0;background:none;font-size:25px;width:32px;height:36px;padding:0 0 9px;border-radius:8px;color:var(--muted)}.mobile-menu{position:absolute;right:0;top:43px;z-index:10;min-width:170px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--menu-shadow);padding:6px}.mobile-menu button{display:block;background:none;border:0;width:100%;padding:11px 12px;text-align:left;font-size:12px;border-radius:7px}.mobile-menu button:hover{background:var(--soft)}.conversation{padding:21px 19px 24px;scrollbar-gutter:auto}.empty-state{margin-top:clamp(28px,10dvh,100px)}.greeting-symbol{font-size:49px;margin-bottom:18px}.empty-state h2{font-size:26px;margin-top:10px}.empty-state>p:last-of-type{font-size:12px}.mobile-break{display:initial}.suggestions{gap:8px;margin-top:26px}.suggestions button{padding:10px 12px;font-size:10px}.suggestions button span{margin-right:5px;font-size:14px}.message{margin-bottom:27px}.message-content{font-size:15px;line-height:1.85}.message[data-role=user] .message-content{font-size:14px;padding:11px 15px;max-width:93%;border-radius:15px 15px 4px 15px}.message[data-role=assistant] .message-content{padding:0}.message-meta{margin-bottom:10px}.generation-status{padding-left:0}.composer-area{padding:0 12px max(10px,env(safe-area-inset-bottom))}.composer{border-radius:17px;padding:12px 12px 10px}.composer textarea{font-size:16px;min-height:29px;max-height:25dvh}.composer textarea::placeholder{font-size:14px}.composer-toolbar{margin-top:10px}.keyboard-hint{display:none}.send-button{width:35px;height:35px}.composer-note{font-size:9px;margin-top:7px}.desktop-note{display:none}.app-error{font-size:11px;padding:7px 15px;gap:8px}.access-card h1{font-size:30px}.access-footer{font-size:10px}.scroll-bottom{bottom:calc(100% + 10px)}}
@media(max-width:360px){.chat-header{padding-left:13px;padding-right:10px}.header-title p{max-width:125px}.connection-status{border:0;padding:0 4px}.suggestions{flex-direction:column;padding:0 17px}.suggestions button{text-align:center}.conversation{padding-left:15px;padding-right:15px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}