:root{--ink:#282c2b;--muted:#777d79;--line:#e8eae6;--green:#41634e;--paper:#fff;--bg:#f7f8f5}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif}button,textarea{font:inherit}button{cursor:pointer;color:inherit;border:0;background:none}button:focus-visible,textarea:focus-visible,[contenteditable]:focus-visible{outline:2px solid #668b73;outline-offset:3px}svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.app{display:flex;height:100dvh;min-height:480px}.sidebar{width:244px;background:var(--bg);padding:27px 18px 18px;display:flex;flex-direction:column;border-right:1px solid var(--line);flex-shrink:0}.brand{display:flex;gap:10px;align-items:center;font-size:19px;letter-spacing:1px;font-weight:600;padding:0 10px 28px}.brand-mark{display:grid;place-items:center;width:29px;height:29px;background:var(--green);color:white;border-radius:8px}.new{display:flex;align-items:center;gap:10px;border:1px solid #dfe3dc;border-radius:8px;padding:10px 12px;text-align:left;background:white}.section-label{color:#8c928d;font-size:11px;letter-spacing:1px;margin:30px 12px 10px}.session{border-radius:7px;text-align:left;padding:10px 12px;color:#707670;display:flex;gap:9px;align-items:center}.session.active{background:#e9eee6;color:#34533e}.side-bottom{margin-top:auto}.demo-note{font-size:11px;color:#818780;padding:14px 10px;border-bottom:1px solid var(--line);margin-bottom:14px}.profile{display:flex;align-items:center;gap:10px;padding:0 10px}.avatar{background:#e5e8df;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:11px}.profile small{display:block;font-size:10px;color:var(--muted)}main{flex:1;min-width:0;display:flex;flex-direction:column}header{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 36px;border-bottom:1px solid var(--line);gap:12px}.workspace{font-weight:500}.workspace small{font-size:11px;color:var(--muted);margin-left:12px}.controls{display:flex;align-items:center;gap:14px}.switch{display:flex;padding:3px;background:#f1f3ef;border:1px solid var(--line);border-radius:8px}.switch button{display:flex;align-items:center;gap:7px;padding:5px 11px;font-size:12px;color:#71786f;border-radius:5px}.switch button[aria-pressed=true]{background:white;color:#344b3b;box-shadow:0 1px 3px #0000000d}.hide{display:flex;align-items:center;gap:7px;font-size:12px}.key{font-size:10px;color:#8b9088;border:1px solid #e0e3dc;padding:0 4px;border-radius:3px}.scroll{flex:1;overflow:auto;min-height:0;padding:46px 32px 20px}.thread{max-width:740px;margin:auto}.eyebrow{font-size:10px;letter-spacing:2px;color:#85917f;margin-bottom:8px}.heading{display:flex;align-items:start;justify-content:space-between;margin-bottom:36px}.heading h1{font-size:27px;font-weight:500;margin:0;letter-spacing:-.6px}.heading p{font-size:12px;color:var(--muted);margin:8px 0}.date{font-size:11px;color:#8d938c;padding-top:8px}.message{margin-bottom:28px}.message.user{display:flex;justify-content:flex-end}.bubble{max-width:80%;background:#f0f3ec;padding:13px 18px;border-radius:14px 14px 3px 14px;font-size:14px}.assistant-label{display:flex;gap:9px;align-items:center;color:#4b604b;font-size:12px;font-weight:600;margin-bottom:12px}.mini-mark{display:grid;place-items:center;background:#eff3eb;width:25px;height:25px;border-radius:7px}.assistant-body{padding-left:34px;line-height:1.9}.assistant-body p{margin:0 0 12px}.response-card{border-left:2px solid #b6c5ac;padding:4px 0 4px 18px;margin:18px 0;color:#596252}.response-card strong{display:block;font-weight:500;color:#3b4d39;margin-bottom:5px}.message-meta{font-size:10px;color:#969c93;margin-top:10px;display:flex;gap:12px;align-items:center}.composer-wrap{padding:16px 32px 18px}.composer{max-width:740px;margin:auto;border:1px solid #dce2d7;border-radius:14px;background:white;box-shadow:0 4px 18px #25322305;padding:14px 16px 10px}.composer textarea{border:0;outline:none;width:100%;resize:none;min-height:47px;max-height:130px;background:none;color:var(--ink);font-size:14px;line-height:1.6}.composer textarea::placeholder{color:#989e95}.composer-bottom{display:flex;align-items:center;justify-content:flex-end}.local-status{font-size:11px;color:#868f80;display:flex;gap:7px;align-items:center}.dot{width:5px;height:5px;border-radius:50%;background:#829a76}.send{width:31px;height:31px;border-radius:8px;background:var(--green);color:white;display:grid;place-items:center}.send:disabled{background:#dce2d6;cursor:default}.footer-note{text-align:center;font-size:10px;color:#949a90;margin-top:10px}.doc-tools{display:none;max-width:740px;margin:0 auto 22px;border-bottom:1px solid var(--line);padding-bottom:12px;gap:18px;align-items:center;color:#777e72;font-size:11px}.document .scroll{background:#f6f7f4;padding-top:25px}.document .thread{background:white;border:1px solid #e5e8e0;padding:42px 54px;min-height:650px;box-shadow:0 2px 9px #25322303}.document .heading{margin-bottom:24px;border-bottom:1px solid var(--line);padding-bottom:20px}.document .heading h1{font-size:25px}.document .date{display:none}.document .doc-tools{display:flex}.document .message{margin:0 0 23px}.document .message.user{display:block}.document .bubble{max-width:none;padding:0;background:none;border-radius:0;color:#33442f;font-weight:600}.document .assistant-label{display:none}.document .assistant-body{padding:0;font-size:14px}.document .message-meta{display:none}.document .response-card{border:0;padding:0;margin:16px 0}.document .composer-wrap{background:#f6f7f4}.cover{height:100dvh;overflow:auto;background:#f5f6f3}.cover[hidden],.app[hidden]{display:none}.cover-header{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:white;padding:0 30px}.cover-header span{display:flex;align-items:center;gap:10px;font-size:13px}.restore{font-size:11px;color:#6c7568;padding:7px 12px;border:1px solid var(--line);border-radius:6px}.cover-paper{max-width:820px;margin:38px auto;background:white;min-height:850px;padding:55px 65px;border:1px solid var(--line)}.cover-paper h1{font-size:26px;font-weight:500}.cover-paper h2{font-size:16px;margin-top:32px}.cover-paper p,.cover-paper li{color:#687064;font-size:14px;line-height:2}.cover-paper table{width:100%;border-collapse:collapse;font-size:13px;color:#65715d;margin-top:20px}.cover-paper td,.cover-paper th{padding:12px;border:1px solid var(--line);text-align:left;font-weight:400}.cover-meta{font-size:11px;color:#959b90}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#354832;color:white;padding:9px 18px;border-radius:8px;font-size:12px;z-index:5}.toast[hidden]{display:none}@media(max-width:950px){.sidebar{width:200px}header{padding:0 22px}.workspace small{display:none}.document .thread{padding:30px}.date{display:none}}@media(max-width:650px){.sidebar{display:none}header{height:66px;padding:0 16px}.controls{gap:10px}.hide .hide-label{display:none}.switch button{padding:5px 8px}.scroll{padding:28px 18px 8px}.heading h1{font-size:23px}.heading{margin-bottom:26px}.composer-wrap{padding:10px 16px}.document .scroll{padding:16px 12px}.document .thread{padding:26px 20px}.cover-header{padding:0 16px}.cover-paper{margin:16px 12px;padding:28px 22px}.cover-paper table{font-size:11px}.cover-paper td,.cover-paper th{padding:8px}.key{display:none}}

/* Neutral dark palette */
:root{color-scheme:dark;--ink:#aaa;--muted:#777;--line:#292929;--green:#555;--paper:#1b1b1b;--bg:#171717}
body{background:#1b1b1b;color:#aaa}.brand{color:#b2b2b2}.brand-mark{background:#303030;color:#999}.new{background:#202020;border-color:#303030;color:#aaa}.section-label{color:#666}.session{color:#777}.session.active{background:#262626;color:#aaa}.demo-note{color:#707070}.avatar{background:#303030;color:#999}.switch{background:#171717;border-color:#303030}.switch button{color:#777}.switch button[aria-pressed=true]{background:#333;color:#b0b0b0;box-shadow:none}.key{color:#777;border-color:#383838}.eyebrow{color:#717171}.date{color:#707070}.heading h1{color:#b0b0b0}.bubble{background:#282828;color:#a5a5a5}.assistant-label{color:#909090}.mini-mark{background:#292929;color:#8d8d8d}.response-card{border-color:#494949;color:#929292}.response-card strong{color:#a3a3a3}.message-meta{color:#666}.composer{background:#202020;border-color:#363636;box-shadow:none}.composer textarea{color:#aaa}.composer textarea::placeholder{color:#6f6f6f}.local-status{color:#777}.dot{background:#777}.send{background:#414141;color:#b5b5b5}.send:disabled{background:#2b2b2b;color:#666}.footer-note{color:#686868}.doc-tools{color:#777}.document .scroll,.document .composer-wrap{background:#171717}.document .thread{background:#202020;border-color:#2e2e2e;box-shadow:none}.document .bubble{color:#aaa}.cover{background:#171717}.cover-header{background:#1b1b1b}.restore{color:#888}.cover-paper{background:#202020;border-color:#303030}.cover-paper h1,.cover-paper h2{color:#aaa}.cover-paper p,.cover-paper li{color:#909090}.cover-paper table{color:#929292}.cover-meta{color:#707070}.toast{background:#393939;color:#aaa}button:hover{filter:brightness(1.15)}button:focus-visible,textarea:focus-visible,[contenteditable]:focus-visible{outline-color:#777}.brand>span:last-child{color:#777!important}.sidebar>div[style]{color:#777!important}::selection{background:#494949;color:#ccc}

.room-button{font-size:12px;color:#888;padding:5px 8px;border:1px solid #333;border-radius:6px}.room-dialog{max-height:calc(100dvh - 36px);overflow-y:auto;width:460px;max-width:calc(100vw - 30px);background:#202020;color:#aaa;border:1px solid #3b3b3b;border-radius:12px;padding:24px}.room-dialog::backdrop{background:#0009}.room-dialog h2{font-size:19px;font-weight:500;margin:0}.dialog-top{display:flex;align-items:center;justify-content:space-between}.dialog-top button{font-size:12px;color:#999}.room-dialog p{font-size:12px;color:#858585;margin:12px 0 18px}.room-dialog label{font-size:12px;display:block;margin-bottom:8px}.room-dialog input{width:100%;padding:10px 12px;border:1px solid #3b3b3b;background:#181818;color:#aaa;border-radius:6px;font:12px/1.6 inherit}.room-dialog input:focus-visible{outline:1px solid #888}.dialog-actions{display:flex;gap:9px;margin-top:12px;flex-wrap:wrap}.dialog-actions button{border:1px solid #454545;border-radius:6px;background:#303030;padding:8px 13px;font-size:12px}.dialog-actions button:disabled{color:#666;cursor:default}.dialog-divider{height:1px;background:#333;margin:22px 0}.room-dialog .notice{min-height:20px;font-size:12px;margin-top:14px;color:#aaa}.empty-state{color:#777;padding:28px 0;line-height:2}.empty-state strong{display:block;font-size:18px;font-weight:400;color:#999;margin-bottom:8px}.delivery{font-size:10px;color:#737373;text-align:right;margin:5px 0 0}.message.user{display:block}.message.user .bubble{margin-left:auto;white-space:pre-wrap;overflow-wrap:anywhere}.assistant-body{overflow-wrap:anywhere}.assistant-body p{white-space:pre-wrap}.empty-state p{font-size:13px}.conversation-actions{display:flex;gap:8px;margin-top:15px}.conversation-actions button{border:1px solid #363636;border-radius:6px;padding:7px 12px;font-size:12px}.dialog-actions .plain{background:none}.connection-footer{margin-top:12px;color:#666;font-size:11px}.document .delivery{display:none}@media(max-width:650px){.workspace{font-size:13px}.controls{gap:6px}.room-button{padding:5px}.switch button{gap:4px}.switch svg{display:none}.brand{letter-spacing:0}}

.message-text .message-original{display:none}.message-text:hover .message-english,.message-text:focus-within .message-english{display:none}.message-text:hover .message-original,.message-text:focus-within .message-original{display:inline}.message-text{outline-offset:4px}.message-text:focus-visible{outline:1px solid #666;border-radius:3px}

.account-dialog label{margin-top:15px}.account-dialog select{width:100%;padding:10px 12px;background:#181818;border:1px solid #3b3b3b;border-radius:6px;color:#aaa;font:inherit}.account-dialog #accountNotice{min-height:20px}.account-device{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #333;padding:9px 0;font-size:12px}.account-device button{font-size:11px;color:#999;border:1px solid #444;border-radius:5px;padding:4px 8px}.account-dialog input{font-size:16px}.account-dialog input:focus-visible,.account-dialog select:focus-visible{outline:1px solid #888}