:root{--paper:#f5f0e3;--ink:#393b2e;--muted:#8b8878;--line:#ded8c8;--olive:#4d5940}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}body:before{content:"";pointer-events:none;position:fixed;inset:0;opacity:.19;z-index:10;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23988c70' opacity='.28' filter='url(%23n)' d='M0 0h180v180H0z'/%3E%3C/svg%3E")}button,input,textarea{font:inherit}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible{outline:2px solid var(--olive);outline-offset:4px}button{border:0;background:none}aside{width:260px;position:fixed;inset:0 auto 0 0;padding:32px 20px 16px;background:#eae3d2;border-right:1px solid #dad2bf;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;font-family:serif;font-weight:bold;font-size:25px;letter-spacing:2px;margin:0 7px 35px}.seal{display:grid;place-items:center;width:44px;height:44px;border:1px solid #736e57;border-radius:50%;font-size:27px;outline:1px solid #a09b84;outline-offset:3px}.brand-sub{display:block;font-family:sans-serif;font-size:12px;letter-spacing:1px;font-weight:400;color:#797763}.new{background:var(--olive);color:#fff9e9;padding:11px 16px;text-align:left;border-radius:7px;font-size:14px;box-shadow:0 3px 6px #3437280b}.new span{float:right}nav{margin-top:28px}.nav{display:flex;align-items:center;gap:12px;width:100%;padding:12px;border-radius:6px;font-size:14px;text-align:left;margin-bottom:7px}.nav.active{background:#dcd8c5}.nav i{font-size:12px;margin-left:auto;font-style:normal;color:#8d8168}.history-label{margin:33px 12px 12px;color:#888270;font-size:12px;letter-spacing:1px}.history{padding:0 12px;overflow:auto}.history p{font-size:13px;line-height:1.9;color:#9a9481}.history button{font-size:14px;display:block;width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:left;padding:9px 0}.side-bottom{margin-top:auto;padding-top:22px}.connection{border:1px dashed #c7c0ab;padding:13px 10px;border-radius:7px;display:flex;gap:9px;font-size:13px}.connection small,.profile small{display:block;font-size:12px;color:#8f8874}.ring{width:8px;height:8px;border:1px solid #9d8a65;border-radius:50%;margin-top:7px}.profile{display:flex;gap:10px;align-items:center;margin-top:20px;padding:8px 2px;font-size:14px}.profile>span:last-child{margin-left:auto;color:#918b77}.avatar{background:#d4cfba;border-radius:50%;width:34px;height:34px;display:grid;place-items:center}main{margin-left:260px;min-height:100vh}header{height:78px;border-bottom:1px solid #e6e0d2;display:flex;align-items:center;justify-content:space-between;padding:0 36px;font-size:14px}.slash{margin:0 14px;color:#b6af9b}.muted{color:var(--muted)}.demo,.badge{font-size:12px;background:#e9e1ce;border:1px solid #d9cdb2;padding:4px 10px;border-radius:20px;color:#8b7954}#chat-view{max-width:1000px;margin:auto;padding:0 52px;min-height:calc(100vh - 78px);display:flex;flex-direction:column}#welcome{text-align:center;margin:auto 0 38px;padding-top:46px}.eyebrow{font-size:11px;letter-spacing:3px;color:#8b8268;display:flex;gap:14px;align-items:center;justify-content:center}.eyebrow span{height:1px;width:28px;background:#b9af92}.floret{font-family:serif;font-size:59px;line-height:1;margin:22px 0 20px;color:#5c644a}h1{font-family:"Songti SC",STSong,"Noto Serif CJK SC",serif;font-size:40px;font-weight:500;letter-spacing:3px;line-height:1.55;margin:0}.intro{font-size:14px;color:#8d8775;margin:16px 0 34px}.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.suggestions button{text-align:left;position:relative;border:1px solid #ded6c4;border-radius:8px;background:#f9f5ea80;padding:20px 18px;transition:transform .2s,background .2s}.suggestions button:hover{transform:translateY(-3px);background:#fff9ed}.card-icon{display:block;font-size:25px;color:#808769;line-height:1;margin-bottom:18px}.suggestions strong{font-size:14px;font-weight:500}.suggestions p{margin:6px 0 0;font-size:12px;color:#8d8777}.card-arrow{position:absolute;right:17px;top:17px;color:#9c9582}.compose-wrap{width:100%;margin-top:0}#composer{border:1px solid #c9c1ad;background:#fbf8f0;border-radius:12px;padding:17px 18px 13px;box-shadow:0 6px 20px #5a51300a}textarea{width:100%;border:0;resize:vertical;background:none;outline:0;color:var(--ink);min-height:78px;font-size:15px}textarea::placeholder{color:#a19a87}.compose-bottom{display:flex;align-items:center;gap:12px}.model{font-size:13px;padding:6px 8px;background:#eeeadd;border-radius:5px}.model span{margin-left:10px}.key-hint{font-size:11px;color:#aaa38f;margin-left:auto}.send{background:var(--olive);color:#fff;width:34px;height:34px;border-radius:7px;font-size:24px}.footnote{text-align:center;color:#a39b87;font-size:12px;margin:12px 0}.footnote button{font-size:12px;color:#717957;padding:0 3px}footer{text-align:center;font-size:11px;letter-spacing:1px;color:#a8a08c;margin:27px 0 18px}footer span{margin:0 12px}#messages{padding-top:28px;display:none;flex:1}.message{max-width:85%;white-space:pre-wrap;padding:17px 20px;border-radius:10px;margin-bottom:22px;font-size:15px}.message.user{margin-left:auto;background:#e5e5d5}.message.assistant{border:1px solid #ddd5c2;background:#faf6eb}.message small{display:block;color:#8f8264;margin-bottom:9px}#config-view{max-width:820px;margin:auto;padding:48px 36px}.settings-heading .eyebrow{justify-content:flex-start}.settings-heading h1{font-size:32px;margin-top:12px}.settings-heading p,.settings-card>p{font-size:14px;color:#89816e}.settings-card{margin-top:26px;border:1px solid var(--line);padding:26px;border-radius:10px;background:#fbf7ed}.settings-top{display:flex;justify-content:space-between;align-items:center}h2{font-size:17px;font-weight:500;margin:0}.settings-card label{display:block;font-size:14px;margin:21px 0 8px}input{width:100%;padding:11px 12px;border:1px solid #d3cbb8;background:#fffdf6;border-radius:6px;font-size:14px}.key-info{background:#eeecdf;border-radius:6px;padding:15px;margin:24px 0;font-size:14px}.key-info p{font-size:13px;margin:6px 0 0;color:#857f6d}.save{background:var(--olive);color:white;padding:10px 17px;border-radius:6px;font-size:14px}#saved{font-size:13px;margin-left:13px;color:var(--olive)}.checklist{margin-top:30px}.checklist p{font-size:14px;color:#817b69}.checklist span{font-family:serif;margin-right:13px;color:#a2936d}.mobile-menu{display:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#404734;color:#fff8e9;padding:12px 20px;border-radius:8px;font-size:14px;display:none;z-index:20}[hidden]{display:none!important}@media(min-height:900px){#welcome{margin-top:auto;margin-bottom:52px}.compose-wrap{margin-bottom:30px}}@media(max-width:1100px){aside{width:225px;padding-inline:16px}main{margin-left:225px}#chat-view{padding:0 28px}h1{font-size:34px}.suggestions{gap:9px}.suggestions button{padding:17px 12px}.key-hint{display:none}.send{margin-left:auto}}@media(max-width:720px){aside{transform:translateX(-100%);z-index:15;transition:transform .2s;box-shadow:10px 0 30px #393b2e15}aside.open{transform:translateX(0)}main{margin-left:0}header{height:65px;padding:0 20px}.mobile-menu{display:inline-block;margin-right:12px}#chat-view{padding:0 20px;min-height:calc(100vh - 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