:root{color-scheme:light;--bg:#fdfcf9;--sidebar:#f2f3ee;--ink:#252e2b;--muted:#727a73;--line:#e4e7de;--green:#32664f;--pale:#e5eddf;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,select{cursor:pointer}button{border:0;background:none;color:inherit}button:disabled{cursor:default;opacity:.45}button:not(:disabled):hover{filter:brightness(.97)}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:3px}input,textarea,select{color:var(--ink)}[hidden]{display:none!important}a{color:var(--green)}.primary{padding:12px 20px;min-height:44px;border-radius:10px;background:var(--green);color:#fff}.secondary{border:1px solid var(--line);padding:11px 18px;border-radius:10px;min-height:42px}.danger{color:#a94035}.muted,small{color:var(--muted)}.small{font-size:12px;line-height:1.8}.icon-button{height:42px;min-width:42px;display:inline-grid;place-items:center;border-radius:50%;font-size:23px;color:var(--muted)}.sidebar{position:fixed;inset:0 auto 0 0;width:276px;background:var(--sidebar);padding:30px 20px 14px;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:13px;padding:0 8px 32px;color:inherit;text-decoration:none}.brand strong{font-size:25px;letter-spacing:3px}.brand>span:last-child{font-size:15px;letter-spacing:2px;color:var(--muted)}.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--green);border-radius:12px;color:#e5eddf;font-size:30px}.workspace-picker{display:flex;align-items:center;border:1px solid var(--line);border-radius:12px;margin:0 0 18px;padding:4px 6px 4px 12px}.workspace-picker select{border:0;background:transparent;min-width:0;width:100%;height:42px}.workspace-picker .icon-button{font-size:20px;min-width:30px}.new-chat{text-align:center;margin-bottom:16px}.primary-nav{display:grid;gap:8px}.primary-nav button{text-align:left;min-height:48px;padding:12px 16px;border-radius:10px;color:var(--muted);font-weight:500;font-size:15px}.primary-nav button.selected{background:var(--pale);color:var(--green)}.recent-label{margin:33px 12px 16px;font-size:11px;letter-spacing:2px;color:var(--muted)}#chat-search{background:transparent;border:0;width:100%;padding:10px 12px;font-size:12px;outline-color:var(--green)}.conversation-list{overflow-y:auto;flex:1;min-height:60px;margin-top:8px}.chat-row{display:flex;align-items:center;gap:3px;margin-bottom:5px;border-radius:10px;padding:3px 6px}.chat-row.active{background:#e6eade}.chat-row>.chat-title{flex:1;min-width:0;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:13px 7px;font-size:12px}.chat-menu{min-width:28px;font-size:20px;color:var(--muted);border-radius:6px}.empty-nav{padding:16px 12px;font-size:12px;color:var(--muted)}.account-entry{display:flex;align-items:center;gap:10px;border-top:1px solid #d4d9ce;text-align:left;min-height:70px;padding:16px 4px 2px;margin-top:15px}.account-entry>span:nth-child(2){flex:1;min-width:0}.account-entry strong{display:block;font-size:12px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-entry small{display:block;font-size:10px;margin-top:5px}.account-symbol{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:#e8ede3;font-size:22px}.main-shell{margin-left:276px;height:100dvh;min-height:420px;display:flex;flex-direction:column}.topbar{height:79px;flex-shrink:0;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:14px 30px}.heading{flex:1;min-width:0}.heading h1{font-size:14px;margin:0 0 6px;font-weight:600;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.heading>span{font-size:11px;color:var(--muted)}.credit-pill{font-size:11px;padding:11px 14px;border-radius:30px;background:#f1f3ec;color:var(--green);white-space:nowrap}.topbar .icon-button{font-size:24px}.mobile-only{display:none}#main-content{flex:1;min-height:0;position:relative}.view{height:100%;overflow:auto}.chat-view{display:flex;flex-direction:column;position:relative}.messages{flex:1;overflow-y:auto;padding:28px max(32px,calc((100% - 840px)/2));scroll-behavior:smooth}.messages:empty{display:none}.message{margin-bottom:24px}.message-header{display:flex;gap:10px;align-items:center;font-size:11px;color:var(--muted);margin-bottom:8px}.message-header strong{color:var(--ink);font-weight:600}.message-header .copy-message{margin-left:auto;padding:4px 8px;color:var(--muted);font-size:11px}.message-body{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px;line-height:1.9;user-select:text}.message.user .message-body{background:#f1f2ed;border-radius:12px;padding:14px 17px}.message.error .message-body{color:#a94035}.message-files{font-size:11px;color:var(--muted);margin-top:8px}.typing{font-size:13px;color:var(--muted);padding:10px 0}.welcome{max-width:850px;width:100%;padding:80px 35px 30px;margin:auto;flex:1;display:flex;flex-direction:column;justify-content:center}.eyebrow{font-size:10px;letter-spacing:2.8px;color:#7d8779;font-weight:500}.welcome h2{font-size:42px;line-height:1.5;font-weight:500;letter-spacing:-1.5px;margin:20px 0 14px}.welcome>p{font-size:13px;line-height:2;color:var(--muted);margin:0}.start-label{font-size:11px;letter-spacing:2px;color:var(--muted);margin:34px 0 16px}.suggestions{display:flex;gap:12px}.suggestions button{border:1px solid var(--line);border-radius:12px;text-align:left;padding:17px 15px;flex:1;min-width:0;background:#fffdfa}.suggestions button>span{display:block;font-size:22px;color:var(--green);margin-bottom:16px}.suggestions strong{font-size:12px;display:block;font-weight:500}.suggestions small{font-size:10px;display:block;margin-top:7px}.composer-area{padding:15px max(32px,calc((100% - 860px)/2)) 16px;flex-shrink:0}.composer{background:#fff;border:1px solid #dce1d7;border-radius:17px;padding:15px 15px 10px;box-shadow:0 3px 18px #25372a03}#composer-text{width:100%;resize:none;min-height:54px;max-height:180px;border:0;background:transparent;outline:none;font-size:14px;line-height:1.7;padding:0 2px}#composer-text::placeholder{color:#8c9389}.composer-tools{display:flex;gap:8px;align-items:center}.composer-tools select{border:0;outline-color:var(--green);background:transparent;max-width:160px;color:var(--green);font-size:12px;padding:8px 0}.composer-tools select:disabled{appearance:none;opacity:1}.composer-tools .icon-button{font-size:25px;min-width:32px;height:32px}.send-hint{margin-left:auto;color:var(--muted);font-size:10px}.send-button{width:43px;height:43px;border-radius:50%;background:var(--green);color:#fff;font-size:26px;flex-shrink:0}.send-button:disabled{background:#edf0e8;color:#99a296;opacity:1}.send-button.stop{font-size:20px;background:#e5eddf;color:var(--green)}.composer-note{font-size:10px;color:var(--muted);text-align:center;margin:12px 0 0;line-height:1.5}.draft-attachments{display:flex;gap:6px;flex-wrap:wrap}.attachment{display:flex;align-items:center;gap:8px;border-radius:6px;background:#f2f4ee;color:var(--green);font-size:11px;padding:5px 9px;margin-bottom:10px;max-width:100%}.attachment>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment button{font-size:17px}.content-view{padding:48px max(32px,calc((100% - 900px)/2))}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:32px}.section-heading h2{font-size:27px;line-height:1.5;font-weight:500;margin:16px 0 10px}.section-heading p{color:var(--muted);font-size:12px;line-height:1.8}.list-card{border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;padding:17px 20px;gap:15px;margin-bottom:12px;background:#fffdfa}.list-card .details{flex:1;min-width:0}.list-card strong{font-size:13px;display:block;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list-card p{font-size:11px;color:var(--muted);margin:7px 0 0;line-height:1.7}.list-card .state{font-size:11px;color:var(--green);white-space:nowrap}.list-actions{display:flex;align-items:center;gap:8px}.text-button{font-size:12px;padding:10px 8px;color:var(--green);border-radius:8px}.empty-state{padding:65px 10px;text-align:center;color:var(--muted);font-size:13px;line-height:2}.storage-warning{padding:10px 20px;background:#fff1db;color:#805323;font-size:12px;line-height:1.8}.storage-warning button{text-decoration:underline}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}dialog{border:1px solid var(--line);border-radius:18px;padding:26px;width:min(520px,calc(100% - 32px));max-height:calc(100dvh - 48px);background:var(--bg);color:var(--ink);box-shadow:0 18px 60px #192d1d22}dialog::backdrop{background:#17221d66}dialog h2{font-size:23px;margin:0 0 20px;font-weight:600}dialog p{font-size:12px;line-height:1.9;color:var(--muted)}dialog form{display:grid;gap:16px}dialog label{font-size:12px;line-height:1.7;display:block}dialog label>input{display:block;width:100%;margin-top:7px;background:#fff;border:1px solid #d9dfd4;border-radius:9px;min-height:45px;padding:11px 12px;outline-color:var(--green)}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px;flex-wrap:wrap}.dialog-error{font-size:12px;color:#a94035;line-height:1.8;white-space:pre-wrap}.dialog-heading{display:flex;align-items:center;justify-content:space-between}.dialog-heading h2{margin-bottom:15px}.balances{display:flex;gap:15px;margin:24px 0}.balances>div{flex:1;min-width:0}.balances small{font-size:10px;display:block}.balances strong{display:block;font-size:25px;color:var(--green);margin-top:12px;overflow-wrap:anywhere}.rate-card{background:var(--sidebar);padding:13px 15px;border-radius:11px;white-space:pre-wrap;font-size:12px;line-height:1.9;margin-bottom:13px}.ledger{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.ledger h3{font-size:13px;margin:0 0 10px}.ledger-row{display:flex;gap:10px;justify-content:space-between;padding:14px 0;font-size:12px}.ledger-row small{display:block;margin-top:6px;font-size:11px;line-height:1.6}.ledger-amount{white-space:nowrap;color:var(--green)}.file-preview{max-height:45dvh;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:15px;background:#f0f2eb;border-radius:9px;font-size:12px;line-height:1.8}.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:#26362e;color:#fff;padding:13px 20px;border-radius:10px;font-size:12px;max-width:calc(100% - 32px);line-height:1.7;z-index:100}.boot-error{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(420px,calc(100% - 32px));padding:25px;background:var(--bg);border:1px solid var(--line);border-radius:14px;box-shadow:0 0 0 100vmax #fdfcf9ee;z-index:90;font-size:13px;line-height:1.8}.boot-error p{color:var(--muted)}
@media(min-width:1500px){.sidebar{width:292px}.main-shell{margin-left:292px}.welcome{max-width:900px}.welcome h2{font-size:48px}}
@media(max-height:780px) and (min-width:761px){.welcome{padding-top:28px;padding-bottom:10px}.welcome h2{font-size:34px;margin:14px 0 10px}.start-label{margin-top:23px}.suggestions button{padding:12px}.suggestions button>span{margin-bottom:10px}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:transform .18s ease;width:280px;padding-top:25px}.sidebar.open{transform:translateX(0)}.nav-shade{position:fixed;inset:0;background:#18251d66;z-index:19}.main-shell{margin-left:0;height:100dvh;min-height:0}.mobile-only{display:inline-grid}.topbar{height:77px;padding:12px 14px;gap:7px}.topbar .icon-button{min-width:34px;font-size:23px}.heading h1{font-size:14px;max-width:180px}.credit-pill{font-size:10px;padding:9px 11px}.welcome{padding:35px 24px 16px;justify-content:center;min-height:350px}.welcome h2{font-size:34px;margin:19px 0 15px}.welcome>p{font-size:12px;line-height:2}.start-label{margin-top:30px}.suggestions{gap:8px}.suggestions button{padding:14px 12px}.suggestions button:last-child{display:none}.suggestions button>span{font-size:20px;margin-bottom:12px}.suggestions small{font-size:10px}.suggestions strong{font-size:11px}.composer-area{padding:10px 14px max(14px,env(safe-area-inset-bottom))}.composer{padding:13px 13px 8px;border-radius:15px}#composer-text{font-size:16px;min-height:50px}.send-hint{display:none}.send-button{margin-left:auto;width:39px;height:39px}.composer-note{font-size:9px;margin-top:10px}.messages{padding:24px 21px}.message-body{font-size:14px}.content-view{padding:32px 20px}.section-heading{align-items:flex-start;gap:10px}.section-heading h2{font-size:23px}.section-heading>.primary{padding:11px 13px;font-size:12px;white-space:nowrap;margin-top:28px}.list-card{padding:15px 13px;gap:8px;flex-wrap:wrap}.list-actions{margin-left:auto}.list-card strong{max-width:200px}.text-button{padding:7px;font-size:11px}dialog{padding:22px 20px;max-height:calc(100dvh - 32px)}dialog h2{font-size:22px}.balances{gap:8px}.balances strong{font-size:23px}.toast{bottom:20px;width:max-content}}
@media(max-width:350px){.credit-pill{max-width:104px;overflow:hidden;text-overflow:ellipsis}.heading h1{max-width:120px}.welcome{padding:25px 20px 12px}.welcome h2{font-size:30px}.welcome>p{font-size:11px}.suggestions small{display:none}.start-label{margin-top:22px}.suggestions button>span{margin-bottom:7px}.composer-area{padding-left:12px;padding-right:12px}.list-card strong{max-width:160px}}
@media(max-height:680px) and (max-width:760px){.welcome{min-height:0;padding:20px 20px 10px;overflow:auto}.welcome h2{font-size:27px;margin:12px 0}.welcome>p{display:none}.start-label{margin:16px 0 10px}.suggestions button>span,.suggestions small{display:none}.suggestions button{padding:13px 10px}.composer-note{margin-top:7px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}