:root{color-scheme:light;--bg:#fff;--panel:#f7f7f5;--raised:#fff;--text:#252a28;--muted:#858b87;--line:#e9eae6;--hover:#eceee9;--accent:#35685c;--pale:#ecf1e8;--user:#f1f2ee;--shadow:0 6px 32px #192d2110;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #6c9c82;outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-80px;left:20px;z-index:99;background:var(--bg);padding:14px}.skip:focus{top:10px}.app-shell{display:flex;height:100dvh;min-height:500px}.sidebar{width:268px;flex:0 0 268px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:29px 17px 14px}.side-brand{display:flex;align-items:center;justify-content:space-between;padding:0 9px 29px}.wordmark{font-size:17px;font-weight:650;letter-spacing:-.6px;display:flex;align-items:center;gap:8px}.brand-icon{font-size:27px;color:var(--accent);line-height:1}.tag{font-size:9px;border:1px solid #b7cbb6;border-radius:4px;padding:2px 4px;color:var(--accent);letter-spacing:0}.new-chat{height:45px;display:flex;align-items:center;gap:9px;background:var(--raised);border:1px solid var(--line);border-radius:11px;padding:0 12px;text-align:left;font-weight:550;box-shadow:0 2px 4px #00000003}.new-chat>span{font-size:23px;font-weight:300}.new-chat kbd{margin-left:auto;font-size:9px;font-weight:400;color:#969c95;font-family:inherit}.search{display:flex;align-items:center;gap:9px;margin-top:17px;padding:9px 12px;color:var(--muted)}.search>span{font-size:23px;line-height:1}.search input{width:100%;border:0;background:transparent;outline:none;color:var(--text);font-size:12px}.history-heading{font-size:10px;color:var(--muted);letter-spacing:.8px;padding:29px 12px 12px;display:flex;justify-content:space-between}.history{overflow:auto;flex:1;scrollbar-width:thin}.side-empty{font-size:11px;color:var(--muted);line-height:1.8;padding:6px 12px}.history-item{display:flex;gap:4px;align-items:center;border-radius:8px;margin:2px 0}.history-item:hover,.history-item.active{background:var(--hover)}.history-open{flex:1;min-width:0;padding:12px;border:0;background:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:left;font-size:12px}.history-item .more{border:0;background:none;color:var(--muted);padding:9px;opacity:0}.history-item:hover .more,.history-item:focus-within .more,.history-item.active .more{opacity:1}.side-bottom{padding-top:12px;border-top:1px solid var(--line)}.home-link{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);padding:12px}.account-row{display:flex;align-items:center;margin-top:8px}.account{border:0;background:none;display:flex;align-items:center;gap:10px;flex:1;text-align:left;padding:8px}.avatar{width:31px;height:31px;background:#e1e8dc;color:#486348;border-radius:50%;display:grid;place-items:center;font-size:12px}.account strong{display:block;font-size:12px;font-weight:550}.account small{display:block;font-size:9px;margin-top:3px;color:var(--muted)}.icon{border:0;background:transparent;border-radius:8px;display:grid;place-items:center;width:34px;height:34px;font-size:21px;color:var(--muted)}.icon:hover{background:var(--hover);color:var(--text)}.main{flex:1;min-width:0;display:flex;flex-direction:column;position:relative}.topbar{height:80px;flex-shrink:0;padding:0 33px;display:flex;align-items:center;justify-content:space-between;gap:15px}.model-control{display:flex;align-items:center;gap:9px;min-width:0}.model-control select{border:0;background:transparent;color:var(--text);font-size:14px;font-weight:550;max-width:min(40vw,370px);padding:6px 4px;cursor:pointer}.model-control option{background:var(--bg)}.model-dot{height:5px;width:5px;background:#7e9e78;border-radius:50%;flex-shrink:0}.top-right{display:flex;align-items:center;gap:16px}.private-badge{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:6px}.private-badge>span{font-size:16px}.quiet{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:8px 15px;font-size:12px}.quiet:hover{background:var(--hover)}.chat-scroll{flex:1;overflow-y:auto;scroll-behavior:smooth;scrollbar-width:thin;padding:0 30px}.welcome{max-width:760px;margin:clamp(40px,13vh,155px) auto 50px;text-align:center}.welcome-mark{display:inline-grid;place-items:center;color:var(--accent);background:var(--pale);width:56px;height:56px;border-radius:18px;font-size:45px}.eyebrow{font-size:8px;letter-spacing:2.7px;color:#8d998e;margin:25px 0 17px}h1{font-size:clamp(25px,2.5vw,36px);font-weight:550;letter-spacing:-1px;margin:0}.welcome-sub{font-size:12px;color:var(--muted);line-height:1.9;margin:18px 0 38px}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0 22px}.suggestions button{background:var(--bg);border:1px solid var(--line);border-radius:13px;padding:18px 16px 20px;text-align:left;transition:background .15s,border-color .15s}.suggestions button:hover{background:var(--panel);border-color:#b9c8b5}.suggestions button>span{font-size:20px;color:var(--accent);display:block;margin-bottom:18px}.suggestions strong{font-size:12px;font-weight:550;display:block;margin-bottom:8px}.suggestions small{color:var(--muted);font-size:9px;line-height:1.7}.messages{max-width:760px;margin:18px auto 32px}.message{position:relative;line-height:1.95;margin-bottom:31px;font-size:14px;overflow-wrap:anywhere}.message.user{display:flex;flex-direction:column;align-items:flex-end;margin:12px 0 34px}.message.user .bubble{max-width:85%;background:var(--user);border-radius:18px 18px 4px 18px;padding:12px 19px;white-space:pre-wrap}.message.user img{max-width:280px;max-height:240px;object-fit:contain;border-radius:12px;margin-bottom:10px}.message.assistant{padding-left:43px}.assistant-mark{position:absolute;left:0;top:2px;width:27px;height:27px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--accent);font-size:23px}.message-content p{margin:0 0 15px}.message-content p:last-child{margin:0}.message-content h1,.message-content h2,.message-content h3{font-size:1.15em;line-height:1.5;margin:24px 0 12px;letter-spacing:0;font-weight:650}.message-content ul,.message-content ol{padding-left:23px}.message-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.message-content blockquote{border-left:3px solid #bed1b5;margin:12px 0;padding:2px 16px;color:var(--muted)}.message-content pre{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:34px 17px 17px;overflow:auto;position:relative;line-height:1.65;font-size:12px}.message-content code{font-family:"SFMono-Regular",Consolas,monospace;font-size:.9em;background:var(--panel);padding:2px 5px;border-radius:4px}.message-content pre code{padding:0;background:none;font-size:inherit}.code-copy{position:absolute;right:10px;top:6px;font-size:10px;background:var(--bg);border:1px solid var(--line);border-radius:5px;padding:3px 8px}.message-content table{display:block;overflow:auto;border-collapse:collapse;margin:15px 0;max-width:100%;font-size:12px}.message-content th,.message-content td{padding:7px 12px;border:1px solid var(--line);text-align:left}.message-content th{background:var(--panel)}.message-content .katex-display{overflow:auto;padding-block:6px}.message-content img{display:none}.message-actions{display:flex;gap:3px;margin-top:9px;align-items:center}.message-actions button{border:0;background:none;color:var(--muted);font-size:11px;padding:5px 8px;border-radius:5px}.message-actions button:hover{background:var(--hover)}.state-label{font-size:10px;color:#a17049;margin-top:7px}.thinking{color:var(--muted);font-size:12px}.thinking::after{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:#72966d;margin-left:8px;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.25}}.composer-dock{padding:0 30px 15px;background:var(--bg);flex-shrink:0}.composer{max-width:760px;margin:0 auto;background:var(--raised);border:1px solid #dedfd9;border-radius:22px;padding:16px 17px 11px;box-shadow:var(--shadow)}.composer:focus-within{border-color:#aabca7}.composer textarea{display:block;width:100%;resize:none;max-height:200px;min-height:26px;line-height:1.7;border:0;padding:0 4px;background:transparent;color:var(--text);font-size:14px;outline:none}.composer textarea::placeholder{color:#9ca29a}.composer textarea:focus-visible{outline:none}.composer-tools{display:flex;justify-content:space-between;align-items:center;margin-top:12px}.composer-left{display:flex;gap:8px;align-items:center}.attach{position:relative;overflow:hidden;font-size:27px;font-weight:300;cursor:pointer}.attach input{position:absolute;opacity:0;inset:0;cursor:pointer;width:100%}.composer-hint{font-size:9px;color:#9ca29a}.send{border:0;border-radius:50%;background:#2f3e34;color:#fff;width:33px;height:33px;display:grid;place-items:center;font-size:24px;font-weight:300}.send:disabled{background:var(--hover);color:var(--muted);opacity:1}.stop{font-size:13px}.disclaimer{text-align:center;font-size:9px;color:var(--muted);line-height:1.6;margin:12px 0 0}.disclaimer span{margin-left:8px}.notice{min-height:23px;font-size:11px;text-align:center;color:#a17049;max-width:760px;margin:0 auto;padding:4px}.attachment{display:flex;align-items:center;gap:10px;padding:0 3px 14px;font-size:11px;color:var(--muted)}.attachment img{width:52px;height:52px;object-fit:cover;border-radius:8px}.attachment button{background:var(--panel);border:0;border-radius:50%;width:23px;height:23px}.menu,.mobile-close{display:none}.shade{position:fixed;inset:0;background:#0006;z-index:19;border:0}dialog{color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:21px;width:min(410px,calc(100% - 32px));padding:0;box-shadow:0 30px 100px #0002}dialog::backdrop{background:#17251d66;backdrop-filter:blur(4px)}.dialog-form{padding:34px;position:relative}.dialog-close{position:absolute;right:13px;top:12px}.dialog-form h2{font-size:24px;font-weight:550;margin:22px 0 12px}.dialog-form p{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 23px}.dialog-form label{display:block;font-size:11px;margin:18px 0}.dialog-form input{display:block;margin-top:8px;border:1px solid var(--line);border-radius:8px;padding:12px;width:100%;background:var(--panel);color:var(--text)}.dialog-form small{display:block;font-size:10px;line-height:1.8;color:var(--muted);margin-top:18px}.small{width:40px;height:40px;border-radius:12px;font-size:32px}.primary{background:var(--accent);color:white;border:0;border-radius:9px;padding:12px 15px;width:100%;font-size:12px}.dialog-form .form-error{color:#b25545;font-size:11px;margin:8px 0;min-height:14px}.danger{border:1px solid #d2a4a0;border-radius:8px;padding:11px 14px;background:transparent;color:#b2594e;font-size:12px}.dialog-form>.danger{width:100%;margin-top:13px}.dialog-form .delete-note{font-size:10px;margin:12px 0 0}.dialog-actions{display:flex;justify-content:flex-end;gap:10px}.dark{color-scheme:dark;--bg:#202320;--panel:#191c19;--raised:#262a25;--text:#e2e6de;--muted:#92998e;--line:#353b32;--hover:#30372d;--accent:#b3cba1;--pale:#303b2b;--user:#333a2e;--shadow:0 6px 32px #0002}.dark .send{background:#c0d4b2;color:#283220}.dark .primary{background:#b3cba1;color:#24351e}.dark .avatar{background:#3a4832;color:#d0e3c0}.dark .composer{border-color:#46503f}.dark .tag{border-color:#52624a}@media(min-width:1600px){.welcome{margin-top:17vh}}@media(max-width:1050px){.sidebar{width:235px;flex-basis:235px}.topbar{padding-inline:23px}.suggestions{margin:0}.suggestions button{padding:15px 12px}.suggestions small{font-size:9px}.private-badge{display:none}.welcome{margin-top:12vh}}@media(max-width:760px){.app-shell{min-height:0}.sidebar{position:fixed;z-index:20;inset:0 auto 0 0;width:280px;transform:translateX(-100%);transition:transform .2s}.sidebar.open{transform:translateX(0)}.mobile-close,.menu{display:grid}.topbar{height:65px;padding:0 15px;gap:8px}.model-control{margin-right:auto}.model-control select{max-width:58vw;font-size:12px}.top-right{gap:0}.top-right .quiet{padding:7px 11px;font-size:11px}.chat-scroll{padding:0 20px}.welcome{margin:11vh auto 25px}.welcome-mark{width:47px;height:47px;font-size:38px;border-radius:16px}.eyebrow{font-size:7px;letter-spacing:2px;margin-top:22px}h1{font-size:27px}.welcome-sub{font-size:11px;max-width:260px;margin:16px auto 26px}.suggestions{gap:8px;grid-template-columns:1fr;max-width:340px;margin:auto}.suggestions button{display:grid;grid-template-columns:25px 1fr;column-gap:9px;align-items:center;padding:13px 15px;border-radius:11px}.suggestions button>span{grid-row:1/3;margin:0;font-size:22px}.suggestions strong{font-size:11px;margin:0 0 4px}.suggestions small{font-size:9px}.composer-dock{padding:0 14px max(11px,env(safe-area-inset-bottom))}.composer{border-radius:19px;padding:13px 12px 9px}.composer-tools{margin-top:8px}.composer-hint{font-size:8px}.composer textarea{font-size:16px}.disclaimer{font-size:8px;margin-top:10px}.disclaimer span{display:none}.notice{font-size:10px}.messages{margin-top:18px}.message{font-size:14px}.message.assistant{padding-left:0}.assistant-mark{position:relative;margin-bottom:10px}.message.user .bubble{max-width:91%;padding:11px 15px}.dialog-form{padding:27px}.history-item .more{opacity:1}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media(max-height:700px) and (min-width:761px){.welcome{margin-top:3vh}.welcome-sub{margin-bottom:24px}.suggestions button>span{margin-bottom:9px}.eyebrow{margin-top:16px}.topbar{height:65px}}