:root{color-scheme:light;--bg:#fcfcfb;--ink:#292925;--muted:#777772;--line:#e6e5e1;--accent:#c46e50;--bubble:#f0f0ee;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;--serif:Georgia,"Times New Roman","Songti SC","Noto Serif CJK SC",serif;--dock:178px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink)}body{font-family:var(--font);font-size:15px}button,input,textarea,select{font:inherit;color:inherit}button,a,summary,select{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{border:0;background:none}a{color:inherit;text-underline-offset:4px}button:disabled{cursor:not-allowed;opacity:.5}button:hover,summary:hover{background:#eeede9}a:hover{color:#9c4f34}button,summary,a,textarea,select{outline-offset:4px}button:focus-visible,summary:focus-visible,a:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #9e563d}button,summary{touch-action:manipulation}.icon{width:20px;height:20px;flex-shrink:0;vertical-align:middle}.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}[hidden]{display:none!important}.skip{position:fixed;top:-60px;left:16px;z-index:100;background:white;padding:12px}.skip:focus{top:12px}
.topbar{height:64px;padding:10px 26px;display:flex;align-items:center;gap:24px;position:fixed;top:0;left:0;right:0;background:var(--bg);z-index:20}.wordmark{font-family:var(--serif);font-weight:600;font-size:25px;letter-spacing:-.8px;white-space:nowrap;text-decoration:none;color:#22221f}.chat-title{font-size:14px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:400px}.top-actions{display:flex;align-items:center;gap:9px;margin-left:auto}.free-badge{font-size:12px;letter-spacing:.02em;border:1px solid #deddd7;border-radius:7px;padding:7px 11px;white-space:nowrap;background:#f5f5f0;color:#4a5942;font-weight:550}.icon-button{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:7px;flex-shrink:0;padding:0}.more-menu,.mode-menu{position:relative}summary{list-style:none}summary::-webkit-details-marker{display:none}.menu-panel{position:absolute;top:calc(100% + 10px);right:0;width:240px;padding:8px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 8px 32px #24231f12;z-index:40}.menu-label{display:block;padding:8px 10px;color:var(--muted);font-size:12px}.languages{display:flex;gap:5px;flex-wrap:wrap}.languages a{font-size:12px;padding:9px 7px;text-decoration:none;border-radius:5px}.languages a[aria-current]{background:#f0eeea}.menu-links{border-top:1px solid var(--line);margin-top:8px;padding-top:6px}.menu-links a{display:block;text-decoration:none;padding:10px;border-radius:6px}.menu-links a:hover{background:#f5f4f1}
.chat-main{max-width:780px;margin:0 auto;padding:100px 16px calc(var(--dock) + 44px);min-height:100dvh}.welcome{padding-top:clamp(68px,17vh,195px);text-align:center}.intro-label{color:#90745e;font-size:12px;font-weight:500;letter-spacing:.05em}.intro-label span{margin:0 9px;color:#bbb6ae}.welcome h1{font:400 clamp(29px,3.3vw,39px)/1.35 var(--serif);letter-spacing:-.9px;margin:20px -35px 14px}.welcome p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}.welcome .promise{font-size:12px;margin-top:8px;color:#777067}.suggestions{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:28px}.suggestions button{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:8px;background:transparent;padding:10px 13px;font-size:12px;min-height:40px}.suggestions button:hover{background:#f3f2ee}.suggestions .icon{width:17px;height:17px;opacity:.65}
.conversation{padding:0 6px}.turn{margin:0 0 40px}.user-message{display:table;margin:0 0 30px auto;background:var(--bubble);padding:13px 17px;border-radius:14px;max-width:86%;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.6;font-size:16px}.assistant-message{font:18px/1.6 var(--serif);overflow-wrap:anywhere;min-height:26px}.assistant-message p{margin:0 0 1em;white-space:pre-wrap}.assistant-message pre{overflow:auto;background:#f3f2ef;border:1px solid var(--line);border-radius:9px;padding:16px;font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre}.assistant-message pre code{background:none;padding:0}.assistant-message :not(pre)>code{font:14px ui-monospace,monospace;background:#f0efeb;padding:2px 4px;border-radius:4px}.assistant-message ul,.assistant-message ol{padding-left:1.5em}.assistant-message h2{font-size:22px;margin:1em 0 .6em}.assistant-message h3{font-size:19px}.assistant-message blockquote{margin:1em 0;padding-left:16px;border-left:3px solid #d7d3cb;color:#6c675e}.assistant-message a{color:#985237}.response-actions{display:flex;gap:6px;margin-top:12px;align-items:center}.response-actions button,.response-actions a{font-family:var(--font);font-size:12px;display:flex;align-items:center;gap:6px;padding:8px;border-radius:6px;color:var(--muted);text-decoration:none}.response-actions .icon{width:16px;height:16px}.response-media{max-width:100%;height:auto;max-height:560px;border-radius:12px;display:block;background:#f0efeb}.turn-state{font:13px/1.6 var(--font);color:var(--muted);margin:0 0 14px}.turn-state.error{color:#a13e31}.reasoning{font:13px/1.6 var(--font);color:var(--muted);margin-bottom:20px}.reasoning summary{padding:6px 0}.reasoning pre{white-space:pre-wrap;max-height:180px;overflow:auto}.loading-icon{color:var(--accent);font-size:12px;padding:4px 0}.loading-icon .icon{opacity:.65;animation:breathe 1.4s ease-in-out infinite}
.composer-dock{position:fixed;bottom:0;left:0;right:0;background:var(--bg);padding:10px 24px max(12px,env(safe-area-inset-bottom));z-index:15}.composer-wrap{max-width:780px;margin:0 auto}.session-note{display:flex;justify-content:center;align-items:center;gap:6px;font-size:11px;color:var(--muted);margin:0 0 14px;line-height:1.5;text-align:center}.session-note .icon{width:13px;height:13px;opacity:.55}.has-chat .session-note{display:none}.status-line{font-size:12px;color:#a13e31;padding:0 12px;line-height:1.5}.status-line:not(:empty){padding-bottom:9px}.composer{border:1px solid #e2e1dd;border-radius:16px;background:white;box-shadow:0 4px 24px #22221506;padding:8px 12px}.composer:focus-within{border-color:#c7c4bc;box-shadow:0 4px 24px #22221508}.input-row{display:flex;align-items:flex-end;gap:8px;min-height:36px}.input-row .mode-menu{margin-bottom:1px}textarea{resize:none;flex:1;min-width:0;border:0;outline:none!important;background:transparent;line-height:1.5;height:38px;min-height:38px;max-height:180px;padding:6px 4px;font-size:17px;overflow-y:auto}textarea::placeholder{color:#93918a}.send-button{width:32px;height:32px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin:3px 2px}.send-button:hover{background:#ad5d41}.send-button .icon{filter:invert(1);width:19px;height:19px}.send-button:disabled{background:#dedbd3;opacity:1}.send-button:disabled .icon{filter:none;opacity:.35}.stop-button{background:#3c3c36}.mode-panel{top:auto;bottom:calc(100% + 16px);left:-5px;right:auto;width:255px}.mode-panel button{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:11px 10px;border-radius:6px}.mode-panel button[aria-pressed=true]{background:#f1efeb}.mode-panel small{margin-left:auto;color:#7c776b;font-size:10px}.composer-meta{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;padding:9px 14px 0;font-size:11px;color:var(--muted);line-height:1.5}.model-picker{display:flex;align-items:center;gap:5px;padding:0;white-space:nowrap;font-size:11px;color:#33332f}.model-picker .icon{width:13px;height:13px;opacity:.5}.bottom-links{display:flex;justify-content:center;align-items:center;gap:10px;font-size:10px;color:#89867f;margin-top:10px}.bottom-links a{text-decoration:none}.generation-options{display:flex;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding:5px 4px 10px;margin-bottom:6px;font-size:12px;color:var(--muted)}.generation-options label{display:flex;align-items:center;gap:7px}.generation-options select{border:1px solid var(--line);border-radius:5px;padding:6px;background:#fff;font-size:12px;color:var(--ink)}
.document{max-width:760px;margin:0 auto;padding:106px 24px 30px;line-height:1.85}.document .back{display:inline-flex;align-items:center;gap:7px;font-size:13px;text-decoration:none;color:var(--muted)}.document h1{font:400 40px/1.3 var(--serif);margin:30px 0 8px;letter-spacing:-.7px}.updated{font-size:12px;color:var(--muted);margin-bottom:32px}.document section{margin:30px 0}.document h2{font:500 22px/1.4 var(--serif);margin:0 0 12px}.document p{color:#605e57;overflow-wrap:anywhere}.contact-link{color:#96543d}.qr-codes{display:flex;gap:28px;flex-wrap:wrap}.qr-codes figure{margin:0;max-width:100%}.qr-codes img{display:block;width:220px;height:220px;object-fit:contain;max-width:100%;background:white;border:1px solid var(--line);border-radius:8px}.qr-codes figcaption{font-size:12px;color:var(--muted);margin-top:7px}.ad-reservation{margin:38px 0;min-height:100px;border:1px dashed #dbd8d0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;border-radius:8px;font-size:12px;color:var(--muted);text-align:center;padding:16px}.ad-reservation small{font-size:11px}.document footer{border-top:1px solid var(--line);padding:24px 0;margin-top:40px;font-size:12px;color:var(--muted)}.document footer>a{display:inline-block;margin:0 14px 12px 0}.document footer p{font-size:11px}
@keyframes breathe{50%{opacity:.25}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;scroll-behavior:auto!important}}
.qr-codes img{height:auto}.assistant-message table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px}.assistant-message th,.assistant-message td{border:1px solid var(--line);padding:8px 12px}
.composer:has(textarea:focus-visible){border-color:#9e563d}
.quota-bar{display:flex;align-items:center;justify-content:center;gap:6px 12px;flex-wrap:wrap;font-size:11px;color:#68635a;margin-bottom:9px}.quota-bar>button{color:#965237;border-radius:6px;padding:6px 10px;background:#f1e7df}.quota-details{flex-basis:100%;text-align:center}.quota-details summary{font-size:10px;display:inline-block;padding:3px 8px}.quota-details p{max-width:640px;margin:6px auto;font-size:11px;line-height:1.5}.quota-bar .share-options{background:#fff;text-align:left;max-height:180px;overflow:auto}.quota-bar .share-options button{padding:9px 12px;border-radius:6px;background:#f1e7df}.has-chat .quota-details:not([open]){display:none}
.tool-nav{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:28px}.tool-nav a{font-size:13px;padding:10px 18px;text-decoration:none;border-radius:8px;border:1px solid var(--line)}.tool-nav a[aria-current]{background:#ece9e2}.guide-link{padding:11px;font-size:12px;color:var(--muted)}.tool-guide{margin-top:110px;padding-top:30px;border-top:1px solid var(--line);line-height:1.85;scroll-margin-top:86px}.tool-guide h2{font:400 28px var(--serif)}.tool-guide h3{font-size:17px;margin-top:28px}.tool-guide p{color:#605e57}.tool-guide .tool-nav{justify-content:flex-start;margin-bottom:22px}.has-chat .tool-guide{display:none}.response-actions{flex-wrap:wrap}.response-actions .share-primary{color:#914b33;background:#f4e8e0;padding:10px 15px;font-size:13px}.share-options{flex-basis:100%;border:1px solid var(--line);border-radius:10px;padding:14px;font:13px/1.6 var(--font);color:var(--muted)}.share-options p{margin:0 0 10px}.share-options label{display:flex;align-items:center;gap:7px}.share-options>div{display:flex;gap:8px;flex-wrap:wrap}.share-options input{width:17px;height:17px}
.assistant-message{font-size:17px;line-height:1.5}.bottom-links{display:none}.composer{padding-top:6px;padding-bottom:6px}.input-row .mode-menu{margin-bottom:0}.send-button{margin-top:2px;margin-bottom:2px}textarea{height:34px;min-height:34px;padding-top:4px;padding-bottom:4px}
@media(min-width:1700px){.chat-main,.composer-wrap{max-width:860px}}
@media(max-width:768px){.topbar{padding:10px 16px;gap:16px}.chat-title{max-width:200px;font-size:12px}.welcome h1{margin-left:0;margin-right:0}.chat-main{padding-left:26px;padding-right:26px}.composer-dock{padding-left:20px;padding-right:20px}.assistant-message{font-size:17px}}
@media(max-width:520px){:root{--dock:200px}.topbar{height:58px;padding:8px 13px;gap:10px}.wordmark{font-size:22px}.chat-title{display:none}.top-actions{gap:3px}.free-badge{font-size:10px;padding:6px 8px}.icon-button{width:36px;height:36px}.chat-main{padding:88px 19px calc(var(--dock) + 25px)}.welcome{padding-top:clamp(40px,10vh,86px)}.welcome h1{font-size:30px;letter-spacing:-.5px;line-height:1.35}.welcome p{font-size:13px;max-width:290px;margin-inline:auto}.welcome .promise{font-size:11px;margin-top:12px;max-width:285px}.intro-label{font-size:10px}.suggestions{gap:8px;margin-top:23px;flex-direction:column;align-items:center}.suggestions button{min-height:40px;font-size:12px;padding:9px 13px}.composer-dock{padding:8px 12px max(9px,env(safe-area-inset-bottom))}.composer{padding:7px 8px;border-radius:15px}.input-row{gap:3px}textarea{font-size:16px}.session-note{font-size:9px;margin-bottom:10px}.composer-meta{padding:8px 6px 0;gap:10px;font-size:9px}.model-picker{font-size:10px}.composer-meta>span{max-width:58%}.bottom-links{margin-top:7px;font-size:9px}.user-message{font-size:15px;max-width:91%;padding:10px 14px;margin-bottom:25px}.assistant-message{font-size:17px}.conversation{padding:0 2px}.turn{margin-bottom:30px}.generation-options{gap:8px;font-size:10px}.generation-options select{font-size:11px}.document{padding:92px 21px 25px}.document h1{font-size:34px}.document h2{font-size:21px}.qr-codes{gap:24px}.menu-panel{max-width:calc(100vw - 30px)}}