:root{font-family:Arial,"Segoe UI",sans-serif;color:#111;background:white;font-synthesis:none}*{box-sizing:border-box}body{margin:0;height:100dvh;overflow:hidden}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:2px solid #666;outline-offset:4px}svg{width:18px;height:18px;flex-shrink:0}main{height:100dvh;display:flex;flex-direction:column;background:#fff}header{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;flex-shrink:0}.header-left,.header-right{display:flex;align-items:center;gap:12px}.header-brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:19px;font-weight:600;letter-spacing:-.35px;color:#111}.header-mark{font-size:29px;font-weight:400;line-height:1}.login-button{background:#282828;color:#fff;border:0;border-radius:24px;padding:8px 22px;font-size:14px}.icon-button{width:32px;height:32px;background:white;border:1px solid #e9e9e9;border-radius:7px;display:grid;place-items:center;font-size:18px;color:#555}body:not(.authenticated) #menu,body:not(.chatting) #export{display:none}#stage{flex:1;min-height:0;overflow:auto;padding:0 20px}#welcome{text-align:center;padding-top:clamp(75px,16.5vh,190px)}h1{font-size:32px;font-weight:400;line-height:1.25;letter-spacing:-.75px;margin:0 0 23px}.composer-area{max-width:740px;width:100%;margin:0 auto}.composer{border:1px solid #ececec;border-radius:30px;background:#fff;box-shadow:0 4px 22px #00000004;padding:18px 12px 12px;transition:border-color .15s}.composer:focus-within{border-color:#d4d4d4}textarea{display:block;border:0;background:transparent;outline:0;width:100%;resize:none;padding:1px 8px 0;min-height:55px;max-height:180px;font-size:16px;line-height:1.55;color:#191919}textarea::placeholder{color:#777}.composer-toolbar{display:flex;align-items:center;justify-content:space-between;padding-top:10px}.attachment{width:38px;height:38px;border:1px solid #e8e8e8;border-radius:50%;display:grid;place-items:center;background:#fff;color:#333}.attachment svg{width:22px;height:22px}.send-area{display:flex;align-items:center;gap:18px}.model-trigger{display:flex;align-items:center;gap:6px;border:0;background:transparent;color:#111;font-size:14px;padding:6px 0;max-width:230px}.model-symbol{font-size:22px;line-height:1}.chevron{font-size:12px;margin-left:1px}.voice-button{border:0;background:transparent;display:grid;place-items:center;padding:0;color:#333}.voice-button svg{height:20px;width:20px}#send{border:0;border-radius:50%;width:38px;height:38px;display:grid;place-items:center;background:#262626;color:white}#send svg{width:20px;height:20px}#send:disabled{background:#f0f0f0;color:#b8b8b8}.suggestions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}.suggestions button{display:flex;align-items:center;gap:8px;border:1px solid #ececec;border-radius:25px;background:white;padding:9px 15px;color:#111;font-size:14px;white-space:nowrap;line-height:17px}.suggestions button:hover{background:#f7f7f7}.suggestions svg{width:15px;height:15px}.demo-notice{text-align:center;font-size:11px;color:#999;margin:18px 0 0}.demo-notice>span{font-size:9px;padding:3px 5px;border:1px solid #eee;border-radius:4px;margin-right:4px;color:#888}#status{font-size:13px;color:#8d5b32;text-align:center;line-height:1.7}#status:not(:empty){margin:14px 0}footer{padding:10px 20px 15px;text-align:center;color:#3c3c3c;font-size:13px;line-height:1.65;flex-shrink:0}footer p{margin:3px 0}footer button{border:0;background:transparent;text-decoration:underline;text-underline-offset:2px;font-size:inherit;color:inherit;padding:0}#messages{max-width:740px;width:100%;margin:28px auto 25px}.message{margin-bottom:30px}.message-head{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600;margin-bottom:12px}.message-avatar{display:grid;place-items:center;width:28px;height:28px;background:#f3f3f3;color:#444;border-radius:8px;font-size:20px}.message.user .message-avatar{font-size:12px}.message-content{font-size:15px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;padding-left:37px;color:#252525}.copy-button{background:none;border:0;color:#888;font-size:11px;margin:10px 0 0 33px}.chatting #stage{display:flex;flex-direction:column}.chatting #messages{flex:1}.chatting .composer-area{position:sticky;bottom:0;background:white;padding:12px 0 5px}.chatting .demo-notice{margin:10px 0}.chatting footer{font-size:11px;padding-top:5px}aside{position:fixed;z-index:5;inset:0 auto 0 0;width:280px;background:#f8f8f8;border-right:1px solid #eaeaea;display:flex;flex-direction:column;padding:26px 20px 18px;transform:translateX(-100%);transition:transform .2s}.nav-open aside{transform:translateX(0)}#shade{position:fixed;inset:0;z-index:4;background:#0005}.brand{display:flex;align-items:center;gap:3px;text-decoration:none;font-size:25px;font-weight:600;color:#222;letter-spacing:-1px}.brand-icon{font-size:33px;margin-right:7px}.brand-ai{font-weight:400}.brand i{display:none}.new-chat{display:flex;align-items:center;gap:10px;text-align:left;background:#fff;border:1px solid #ddd;border-radius:9px;padding:12px;font-size:12px;margin-top:30px;color:#444}.new-chat span{font-size:22px}.new-chat kbd{margin-left:auto;color:#aaa}.search-wrap{display:flex;align-items:center;gap:10px;margin:22px 5px;color:#888}.search-wrap span{font-size:23px}.search-wrap input{border:0;outline:0;background:transparent;width:100%;font-size:12px}.history-label{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;color:#999;padding:0 7px}#chat-list{flex:1;overflow:auto;margin-top:15px}.history-empty{font-size:12px;line-height:1.8;color:#999;margin:15px 7px}.history-item{display:block;border:0;border-radius:7px;width:100%;background:transparent;text-align:left;font-size:12px;color:#666;padding:11px 10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item:hover,.history-item.active{background:#eaeaea;color:#222}.history-item::before{content:'◷';margin-right:9px}.quota-card{border:1px solid #e1e1e1;border-radius:10px;padding:14px 12px;background:#fff}.quota-title{display:flex;justify-content:space-between;font-size:9px;color:#777}.quota-card progress{display:block;width:100%;height:4px;margin:12px 0;accent-color:#555;border:0}.quota-card small{font-size:8px;color:#999}.account-button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:transparent;margin-top:18px;padding:4px}.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e4e4e4;color:#666;font-size:12px}.account-button strong{display:block;font-size:12px;font-weight:500;color:#555}.account-button small{display:block;font-size:9px;color:#999;margin-top:4px}.account-more{margin-left:auto;color:#888}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}dialog{border:1px solid #e7e7e7;border-radius:20px;padding:32px;max-width:470px;width:calc(100% - 32px);box-shadow:0 20px 80px #0002;color:#222}dialog::backdrop{background:#0005;backdrop-filter:blur(3px)}.dialog-close{position:absolute;top:12px;right:15px;background:transparent;border:0;font-size:25px;color:#999}.dialog-mark{font-size:34px;color:#333;margin-bottom:18px}h2{font-size:23px;font-weight:500;letter-spacing:-.5px;margin:10px 0}.dialog-subtitle{font-size:13px;color:#888;line-height:1.8;margin-bottom:23px}dialog label{display:block;font-size:12px;margin-top:17px;color:#666}dialog input{display:block;width:100%;border:1px solid #ddd;border-radius:8px;background:white;color:#222;font-size:14px;padding:12px;margin-top:8px}dialog input:focus{outline:2px solid #777}.primary{width:100%;background:#292929;color:white;border:0;border-radius:8px;padding:13px;font-size:13px;margin-top:18px}.form-error{font-size:12px;color:#a04d46;line-height:1.7}.auth-switch{text-align:center;font-size:12px;color:#888;margin-top:22px}.auth-switch button{border:0;background:none;color:#333;font-size:12px;text-decoration:underline}.dialog-footnote{display:block;text-align:center;color:#999;font-size:10px;margin-top:25px;line-height:1.7}.eyebrow{font-size:9px;color:#999;letter-spacing:1px}.model-option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:white;border:1px solid #eee;border-radius:10px;padding:15px 12px;margin-top:10px;color:#333}.model-option.active{background:#f6f6f6;border-color:#aaa}.model-option>span:first-child{font-size:25px}.model-option strong{display:block;font-size:14px;font-weight:500}.model-option small{display:block;color:#888;font-size:10px;margin-top:5px}.model-check{margin-left:auto}.empty-note{color:#999;font-size:12px}.info-box{padding:17px;background:#f6f6f6;border-radius:10px;font-size:13px}.info-box p,.privacy-copy p{font-size:13px;line-height:1.9;color:#777}.extra-prompts{display:grid;gap:10px}.extra-prompts button{padding:16px;border:1px solid #e8e8e8;border-radius:10px;background:white;color:#444;text-align:left;font-size:13px}.extra-prompts button:hover{background:#f6f6f6}[hidden]{display:none!important}@media(max-width:760px){header{height:65px;padding:0 16px}.header-brand{font-size:17px;gap:8px}.header-mark{font-size:26px}.login-button{font-size:13px;padding:8px 19px}#stage{padding:0 16px}#welcome{padding-top:clamp(70px,15vh,135px)}h1{font-size:27px;letter-spacing:-.5px;margin-bottom:23px}.composer{border-radius:25px;padding:16px 11px 11px}textarea{font-size:16px;min-height:65px;padding-left:7px}.send-area{gap:17px}.model-trigger{font-size:13px;max-width:170px}#model-name{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.suggestions{gap:8px;margin-top:18px}.suggestions button{font-size:12px;padding:8px 12px;gap:6px}.suggestions svg{width:14px;height:14px}.demo-notice{font-size:10px;margin-top:17px}footer{font-size:10px;padding:12px 17px 16px;line-height:1.7}.message-content{font-size:14px}.chatting footer{font-size:9px}dialog{padding:29px 24px}}@media(max-height:650px){#welcome{padding-top:45px}.demo-notice{margin-top:12px}footer{font-size:10px;padding-bottom:10px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}