@charset "UTF-8";
:root{color-scheme:light;--bg:#fff;--side:#f0f4f9;--text:#1f1f1f;--muted:#686d75;--line:#e1e5ed;--surface:#f8fafd;--hover:#e1e9f4;--blue:#0b57d0;--bubble:#f0f4f9;--shadow:0 16px 60px #1f3c6820;--font:Arial,"Noto Sans CJK SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.55}button,input,textarea{font:inherit}button{cursor:pointer;color:inherit}button{border:0;background:none}button:disabled{cursor:default}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #4285f4;outline-offset:3px}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}[hidden]{display:none!important}.svg-defs{position:absolute;width:0;height:0}.sidebar{width:272px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;background:var(--side);padding:20px 16px 18px;transition:transform .22s ease;z-index:10}.side-top{display:flex;align-items:center;gap:16px;margin-bottom:34px;padding:0 4px}.side-brand{font-size:20px;font-weight:600;letter-spacing:.5px}.icon-button{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%}.icon-button:hover{background:var(--hover)}.small{width:32px;height:32px}.small svg{width:18px;height:18px}.new-chat{display:flex;align-items:center;gap:12px;border-radius:28px;background:#dde5ef;color:#414751;padding:13px 18px;align-self:flex-start;font-weight:500;margin:0 0 34px 4px}.new-chat:hover{background:#d3dfef}.history-heading{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;padding:0 8px;margin-bottom:10px}.history-list{flex:1;overflow:auto;padding-bottom:16px}.history-empty{font-size:12px;color:var(--muted);padding:16px 10px;line-height:1.9}.history-item{display:flex;align-items:center;width:100%;gap:10px;border-radius:22px;margin:3px 0;padding:10px 12px}.history-item:hover{background:var(--hover)}.history-item.active{background:#d3e3fd;color:#174ea6}.history-open{padding:0;display:flex;align-items:center;gap:10px;min-width:0;flex:1;text-align:left}.history-open svg{width:17px;height:17px}.history-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.history-delete{width:22px;height:24px;opacity:0;flex-shrink:0;padding:2px}.history-delete svg{width:15px;height:15px}.history-item:hover .history-delete,.history-delete:focus-visible{opacity:1}.search-box{display:flex;gap:8px;align-items:center;padding:9px 12px;background:var(--bg);border-radius:12px;margin-bottom:12px}.search-box svg{width:17px;height:17px}.search-box input{width:100%;min-width:0;background:none;border:0;color:inherit;outline:none}.side-bottom{margin:12px 4px 0}.side-bottom>button{display:flex;align-items:center;gap:12px;border-radius:24px;padding:10px 12px;width:100%;font-size:13px}.side-bottom>button:hover{background:var(--hover)}.side-bottom svg{width:19px;height:19px}.side-location{font-size:11px;color:var(--muted);padding:14px 14px 0;display:flex;align-items:center;gap:8px}.tiny-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:#a9adb4;flex-shrink:0}.main{margin-left:272px;display:flex;flex-direction:column;height:100dvh;transition:margin-left .22s ease}.topbar{display:flex;justify-content:space-between;align-items:center;padding:20px 32px 14px;min-height:85px}.brand-group{display:flex;align-items:center;gap:14px}.brand{font-size:23px;letter-spacing:-.6px;display:flex;align-items:baseline;gap:12px}.brand-caption{font-size:11px;color:var(--muted);letter-spacing:1px}.top-right{display:flex;align-items:center;gap:20px}.connection-pill{font-size:11px;background:var(--surface);border:1px solid var(--line);display:flex;align-items:center;gap:7px;padding:6px 11px;border-radius:30px;color:var(--muted)}.connection-pill.connected .tiny-dot{background:#34a853}.avatar{width:36px;height:36px;border-radius:50%;background:#d9e7fd;color:#185abc;font-weight:600;border:3px solid var(--bg);box-shadow:0 0 0 1px var(--line)}#main-toggle{display:none}.scroll-area{flex:1;min-height:0;overflow:auto;scroll-behavior:smooth}.welcome{max-width:830px;margin:0 auto;padding:clamp(55px,10vh,112px) 32px 32px}.eyebrow{display:flex;gap:9px;align-items:center;font-size:12px;color:var(--muted);letter-spacing:1px;margin-bottom:23px}.eyebrow svg{width:16px;height:16px;color:#6c8ed6;fill:currentColor;stroke:none}.welcome h1{font-size:clamp(36px,4vw,56px);font-weight:500;letter-spacing:-1.8px;line-height:1.2;margin:0 0 12px;background:linear-gradient(95deg,#4285f4,#7e73c1 53%,#bf7190 88%);color:transparent;background-clip:text}.welcome h2{font-size:clamp(30px,3.5vw,46px);font-weight:400;color:#a1a6ae;letter-spacing:-1.7px;line-height:1.3;margin:0}.welcome-description{margin:21px 0 35px;color:var(--muted);font-size:14px;letter-spacing:.4px}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.suggestions>button{text-align:left;background:var(--surface);border:1px solid #edf0f6;border-radius:20px;min-height:167px;padding:19px 18px;position:relative;transition:background .15s,transform .15s}.suggestions>button:hover{background:var(--side);transform:translateY(-3px)}.suggestion-icon{display:flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:50%;margin-bottom:17px;font-size:21px}.suggestion-icon.blue{color:#4285f4;background:#e9f0fe}.suggestion-icon.green{color:#388467;background:#e4f1eb}.suggestion-icon.purple{color:#9572ca;background:#f0e9fa}.suggestions strong{display:block;font-weight:500;font-size:14px;margin-bottom:5px}.suggestions button>span:not(.suggestion-icon){font-size:11px;color:var(--muted)}.suggestions button>svg{position:absolute;right:16px;top:23px;width:16px;height:16px;color:#a7afb9}.welcome-note{color:var(--muted);font-size:11px;margin-top:25px;display:flex;gap:7px;align-items:center}.welcome-note:before{content:"";width:4px;height:4px;border-radius:50%;background:#a5b4ca}.composer-wrap{width:100%;max-width:830px;align-self:center;padding:12px 32px 19px}.composer{border:1px solid var(--line);background:var(--surface);border-radius:26px;padding:19px 18px 11px;box-shadow:0 3px 12px #1f3c6804;transition:border .15s}.composer:focus-within{border-color:#c1cde0}.composer textarea{display:block;width:100%;resize:none;min-height:37px;max-height:180px;border:0;background:none;color:var(--text);font-size:15px;outline:none;line-height:1.7;padding:0 4px 10px}.composer textarea:focus-visible{outline:none}.composer textarea::placeholder{color:#6e7682}.composer-bottom{display:flex;align-items:center;justify-content:space-between}.composer-tools,.send-tools{display:flex;align-items:center;gap:8px}.attach-button{width:34px;height:34px}.upload-hint{font-size:11px;color:var(--muted)}.model-select{display:flex;align-items:center;gap:6px;padding:6px 9px;border-radius:15px;font-size:12px;color:#4b5667}.model-select:hover{background:var(--hover)}.model-select svg{width:15px;height:15px}.send-button{width:38px;height:38px;border-radius:50%;background:#d3e3fd;color:#174ea6;display:flex;align-items:center;justify-content:center}.send-button:disabled{background:#e9edf3;color:#aeb4bd}.send-button:not(:disabled):hover{background:#c3d8fc}.composer-footer{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--muted);font-size:10px;margin-top:13px;letter-spacing:.1px}.footer-dot{color:#aab0ba}.attachments{display:flex;flex-wrap:wrap;gap:9px;padding:0 3px 14px}.attachment{position:relative;width:72px;height:72px;border-radius:13px;overflow:hidden;background:var(--bg);border:1px solid var(--line)}.attachment img{width:100%;height:100%;object-fit:cover}.attachment button{position:absolute;right:3px;top:3px;background:#1c243bcc;color:#fff;border-radius:50%;width:21px;height:21px;display:flex;align-items:center;justify-content:center;padding:3px}.attachment button svg{width:15px;height:15px}.composer.dragging{border:2px dashed var(--blue);background:var(--side)}.messages{max-width:830px;padding:35px 32px 24px;margin:0 auto}.message{margin-bottom:32px;line-height:1.9;font-size:15px}.message.user{display:flex;align-items:flex-end;flex-direction:column}.user-content{padding:13px 20px;background:var(--bubble);border-radius:24px 24px 5px 24px;max-width:85%;white-space:pre-wrap;overflow-wrap:anywhere}.message.assistant{display:flex;gap:18px;align-items:flex-start}.assistant-icon{color:#4285f4;width:25px;height:25px;margin-top:3px;fill:currentColor;stroke:none}.assistant-body{min-width:0;flex:1}.assistant-text{white-space:pre-wrap;overflow-wrap:anywhere}.message-images{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.message-images img{max-width:230px;max-height:200px;border-radius:12px;object-fit:contain}.message-actions{display:flex;align-items:center;gap:10px;margin-top:8px;color:var(--muted);font-size:10px}.message-actions .icon-button{width:29px;height:29px}.message-actions svg{width:16px;height:16px}.pending-text{color:var(--muted);font-size:13px}.pending-text::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:#4285f4;margin-left:10px;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}dialog{border:1px solid var(--line);color:var(--text);background:var(--bg);padding:27px;border-radius:24px;max-width:510px;width:calc(100% - 32px);box-shadow:var(--shadow)}dialog::backdrop{background:#162a463b;backdrop-filter:blur(3px)}.dialog-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:21px;gap:15px}.dialog-top h3,dialog>h3{margin:0;font-weight:500;font-size:21px}.dialog-overline{font-size:10px;color:var(--muted);margin-bottom:5px;letter-spacing:1px}.dialog-note{font-size:11px;color:var(--muted);margin:22px 0 0}.model-list{display:flex;flex-direction:column;gap:8px}.model-option{border:1px solid var(--line);border-radius:14px;padding:14px;text-align:left;display:flex;justify-content:space-between;gap:12px;align-items:center}.model-option:hover{background:var(--surface)}.model-option.selected{border-color:#4285f4;background:#eff5ff}.model-option strong{font-weight:500;display:block;margin-bottom:3px}.model-option small{color:var(--muted);font-size:11px}.model-option .checkmark{color:#4285f4}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:15px}.setting-row strong{font-weight:500}.setting-row p{font-size:11px;color:var(--muted);margin:3px 0}.theme-toggle{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:18px;padding:8px 12px;font-size:12px}.theme-toggle svg{width:16px;height:16px}.connection-card{background:var(--surface);padding:18px;border-radius:16px;margin-top:25px}.connection-card>div{display:flex;align-items:center;gap:8px;font-size:13px}.connection-card strong{font-weight:500}.connection-card p{font-size:12px;color:var(--muted);line-height:1.9}.text-button{color:var(--blue);padding:8px 0;font-size:12px}.dialog-actions{display:flex;justify-content:flex-end;align-items:center;gap:25px;margin-top:20px}.danger-button{background:#b3261e;color:#fff;border-radius:20px;padding:9px 22px}.toast{position:fixed;bottom:23px;left:50%;transform:translateX(-50%);z-index:30;padding:12px 20px;color:#fff;background:#263348;border-radius:16px;box-shadow:var(--shadow);font-size:12px;max-width:90vw}.sidebar-closed .sidebar{transform:translateX(-100%)}.sidebar-closed .main{margin-left:0}.sidebar-closed #main-toggle{display:flex}.scrim{position:fixed;inset:0;background:#0005;z-index:9}
body.dark{color-scheme:dark;--bg:#131314;--side:#1e1f20;--text:#e3e3e3;--muted:#a0a5ae;--line:#373b42;--surface:#1e1f20;--hover:#30343b;--blue:#a8c7fa;--bubble:#292a2d;--shadow:0 16px 60px #0007}.dark .new-chat{background:#292a2d;color:#c4c7cf}.dark .history-item.active{background:#004a77;color:#c2e7ff}.dark .avatar{background:#284774;color:#d3e3fd}.dark .model-select{color:#c4c7cf}.dark .suggestions>button{border-color:var(--line)}.dark .model-option.selected{background:#1b2b47}.dark .suggestion-icon{background:#30343b}.dark .send-button:disabled{background:#30343b;color:#676d78}
@media(min-width:1500px){.welcome,.composer-wrap,.messages{max-width:900px}}
@media(max-width:1000px){.sidebar{width:240px}.main{margin-left:240px}.topbar{padding:18px 24px 12px}.welcome{padding:55px 26px 24px}.composer-wrap{padding:12px 26px 18px}.suggestions{gap:9px}.suggestions>button{padding:17px 13px}.suggestions button>span:not(.suggestion-icon){font-size:10px}.brand-caption{display:none}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);width:272px}.main{margin-left:0}#main-toggle{display:flex}.mobile-sidebar-open .sidebar{transform:translateX(0)}.mobile-sidebar-open .scrim{display:block!important}.topbar{padding:13px 16px;min-height:73px}.brand-group{gap:9px}.brand{font-size:21px}.top-right{gap:12px}.connection-pill{padding:5px 8px;font-size:10px}.welcome{padding:clamp(30px,8vh,65px) 24px 24px}.welcome h1{font-size:42px}.welcome h2{font-size:32px}.eyebrow{font-size:10px;letter-spacing:.4px}.welcome-description{font-size:12px;margin:18px 0 26px}.suggestions{grid-template-columns:1fr;gap:9px}.suggestions>button{min-height:74px;display:grid;grid-template-columns:37px 1fr;align-content:center;gap:2px 13px;padding:13px 15px;border-radius:16px}.suggestion-icon{grid-row:1/3;margin:0;align-self:center}.suggestions strong{font-size:13px;margin:0}.suggestions button>span:not(.suggestion-icon){font-size:11px}.suggestions button>svg{top:28px;right:16px}.welcome-note{font-size:10px;margin-top:18px}.composer-wrap{padding:8px 14px 14px}.composer{border-radius:24px;padding:15px 13px 10px}.composer textarea{font-size:16px}.upload-hint{display:none}.composer-footer{font-size:9px;gap:5px;flex-wrap:wrap}.messages{padding:25px 20px}.message{font-size:14px}.message.assistant{gap:13px}.user-content{max-width:92%}.history-delete{opacity:1}.message-images img{max-width:190px}.theme-toggle span{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important;transition:none!important}}
form label{display:block;margin:20px 0 8px;color:var(--text);font-size:14px}dialog input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);font:inherit;box-sizing:border-box}dialog input:focus{outline:2px solid #8db6f6;outline-offset:2px}.primary-button{border:0;background:#1a73e8;color:#fff;border-radius:20px;padding:11px 24px;font:inherit;cursor:pointer}.primary-button:disabled{opacity:.5}.form-error{color:#c5221f;min-height:22px;font-size:14px}.assistant-text pre{overflow-x:auto;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:14px;font-size:13px;line-height:1.6;white-space:pre}.assistant-text code{font-family:monospace}.assistant-text h3{margin:20px 0 8px;font-size:18px}.assistant-text p{margin:0 0 14px;white-space:pre-wrap}.assistant-text ul{padding-left:24px}.assistant-text strong{font-weight:600}

.stop-button{display:flex;align-items:center;gap:5px;border:1px solid var(--line);border-radius:16px;padding:6px 9px;font-size:11px;white-space:nowrap;color:var(--muted)}.stop-button svg{width:13px;height:13px}.stop-button:hover{background:var(--hover)}.composer:has(.stop-button:not([hidden])) .upload-hint{display:none}