/* 与运营后台的明大绿及浅色/深色表面保持一致。文字与实色按钮分开配色，保证可读性。 */
:root{
 color-scheme:light;
 --bg:#fff;--soft:#f7faf9;--line:#dce9e5;
 --text:#223d38;--muted:#5d746d;
 --primary:#62c13e;--primary-hover:#55ad34;--primary-text:#327821;--on-primary:#fff;
 --pale:#edf9e9;--user:#edf9e9;--danger:#b84a4a;
 --brand-shadow:0 10px 25px rgb(98 193 62 / 12%);
 --composer-shadow:0 5px 25px rgb(28 63 58 / 5%);
 --overlay:rgb(16 25 22 / 40%);
 font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
}
html[data-theme=dark]{
 color-scheme:dark;
 --bg:#18241f;--soft:#1d2c25;--line:#30483d;
 --text:#e4f0e9;--muted:#9bb4a8;
 --primary:#68c98b;--primary-hover:#8ce0a9;--primary-text:#8ce0a9;--on-primary:#fff;
 --pale:#203d30;--user:#203d30;--danger:#ef9494;
 --brand-shadow:0 10px 25px rgb(0 0 0 / 16%);
 --composer-shadow:0 5px 25px rgb(0 0 0 / 14%);
 --overlay:rgb(0 0 0 / 55%);
}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--primary);outline-offset:3px}button{color:inherit}button[hidden],[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.xm-app{height:100vh;height:100dvh;display:flex;overflow:hidden}.xm-history{width:212px;flex-shrink:0;display:flex;flex-direction:column;gap:18px;background:var(--soft);border-right:1px solid var(--line);padding:22px 14px 14px}.xm-history-heading{display:flex;align-items:center;gap:10px;padding:0 6px 2px;font-size:16px}.xm-brand-icon{display:inline-flex;align-items:center;justify-content:center;gap:4px;width:32px;height:29px;border-radius:11px;background:var(--primary);position:relative;flex-shrink:0}.xm-brand-icon:before{content:"";width:4px;height:5px;position:absolute;top:-5px;background:var(--primary);border-radius:3px}.xm-brand-icon i{width:6px;height:8px;background:var(--on-primary);border-radius:50%}.xm-new{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;background:var(--bg);padding:11px;font-size:13px;font-weight:600}.xm-new span{font-size:20px;line-height:1;color:var(--primary-text)}.xm-new kbd{font:10px inherit;font-size:10px;margin-left:auto;color:var(--muted);font-weight:400}.xm-search{display:flex;align-items:center;gap:7px;color:var(--muted);padding:0 8px}.xm-search input{width:100%;min-width:0;border:0;outline:0;background:transparent;color:var(--text);font-size:12px}.xm-search>span{font-size:22px;line-height:1}.xm-history-list{flex:1;min-height:0;overflow-y:auto;margin:0 -5px;padding:0 5px}.xm-history-group{font-size:11px;letter-spacing:.05em;color:var(--muted);margin:10px 10px 8px}.xm-history-row{display:flex;align-items:center;gap:4px;border-radius:8px;margin-bottom:4px}.xm-history-row.active{background:var(--pale)}.xm-history-row:hover{background:var(--pale)}.xm-history-select{padding:10px;border:0;flex:1;min-width:0;text-align:left;background:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px}.xm-history-remove{border:0;background:transparent;opacity:0;color:var(--muted);padding:8px;font-size:18px}.xm-history-row:hover .xm-history-remove,.xm-history-row:focus-within .xm-history-remove{opacity:1}.xm-history-foot{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:10px;border-top:1px solid var(--line);padding-top:12px}.xm-local-dot{width:5px;height:5px;background:var(--primary);border-radius:50%}.xm-history-foot .xm-icon-button{margin-left:auto;width:24px;height:24px}.xm-main{min-width:0;flex:1;display:flex;flex-direction:column;position:relative}.xm-header{display:flex;align-items:center;gap:10px;min-height:75px;padding:15px 24px;border-bottom:1px solid var(--line)}.xm-header-title{min-width:0;flex:1}.xm-header-title strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;font-weight:600}.xm-header-title>span{display:block;margin-top:2px;color:var(--muted);font-size:10px}.xm-model select{max-width:155px;border:1px solid var(--line);border-radius:8px;padding:7px 9px;background:var(--bg);color:var(--text);font-size:12px}.xm-icon-button{display:inline-grid;place-items:center;border:0;border-radius:8px;background:transparent;width:32px;height:32px;color:var(--muted);font-size:18px;flex-shrink:0}.xm-icon-button:hover{background:var(--soft);color:var(--text)}.xm-messages{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:24px max(24px,calc((100% - 790px)/2));scrollbar-width:thin;scrollbar-color:var(--line) transparent}.xm-welcome{max-width:680px;margin:clamp(24px,8vh,100px) auto 40px}.xm-welcome .xm-brand-icon{width:50px;height:45px;border-radius:17px;gap:7px;box-shadow:var(--brand-shadow);margin-bottom:20px}.xm-welcome .xm-brand-icon i{width:9px;height:12px}.xm-eyebrow{font-size:10px;letter-spacing:.16em;color:var(--primary-text);font-weight:600;margin:0 0 8px}.xm-welcome h1{font-size:clamp(23px,3vw,32px);line-height:1.4;letter-spacing:-.04em;margin:0 0 12px;font-weight:600}.xm-welcome h1 span{color:var(--primary-text)}.xm-welcome>p{font-size:13px;color:var(--muted);line-height:1.9;margin-bottom:25px}.xm-prompts{display:grid;grid-template-columns:1fr 1fr;gap:10px}.xm-prompt{display:flex;gap:12px;align-items:flex-start;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--bg);text-align:left}.xm-prompt:hover{border-color:var(--primary);background:var(--soft)}.xm-prompt>span{font-size:18px;color:var(--primary-text)}.xm-prompt strong{display:block;font-size:12px;font-weight:600}.xm-prompt small{display:block;color:var(--muted);font-size:11px;line-height:1.7;margin-top:3px}.xm-message{margin:6px 0 27px;display:flex;gap:12px;align-items:flex-start;min-width:0}.xm-message-body{min-width:0;max-width:100%;flex:1}.xm-message.user{justify-content:flex-end;padding-left:28px}.xm-message.user .xm-message-body{flex:0 1 auto;background:var(--user);padding:12px 16px;border-radius:16px 16px 4px 16px;max-width:90%;white-space:pre-wrap;overflow-wrap:anywhere}.xm-avatar{display:grid;place-items:center;flex-shrink:0;width:29px;height:29px;background:var(--pale);border-radius:10px;color:var(--primary-text);font-size:11px;margin-top:3px}.xm-message-name{font-size:11px;color:var(--muted);margin:2px 0 8px}.xm-markdown{font-size:14px;line-height:1.9;overflow-wrap:anywhere}.xm-markdown>:first-child{margin-top:0}.xm-markdown>:last-child{margin-bottom:0}.xm-markdown p{margin:0 0 13px}.xm-markdown h1,.xm-markdown h2,.xm-markdown h3{font-size:17px;line-height:1.6;margin:20px 0 10px}.xm-markdown ul,.xm-markdown ol{padding-left:24px}.xm-markdown pre{max-width:100%;overflow:auto;background:var(--soft);border:1px solid var(--line);border-radius:9px;padding:14px;font-size:12px;line-height:1.7}.xm-markdown code{font-size:.9em;background:var(--soft);padding:2px 4px;border-radius:4px}.xm-markdown pre code{padding:0}.xm-markdown blockquote{margin:12px 0;border-left:3px solid var(--primary-text);padding-left:14px;color:var(--muted)}.xm-markdown table{display:block;max-width:100%;overflow:auto;border-collapse:collapse;font-size:12px}.xm-markdown th,.xm-markdown td{border:1px solid var(--line);padding:8px 12px;white-space:normal;min-width:80px}.xm-markdown a{color:var(--primary-text);text-decoration:underline;text-underline-offset:3px}.xm-citation{display:inline;font-size:10px;margin-left:3px}.xm-message-actions{display:flex;gap:9px;margin-top:10px}.xm-message-actions button{border:0;background:transparent;padding:3px 0;color:var(--muted);font-size:11px}.xm-message-actions button:hover{color:var(--primary-text)}.xm-source-list{font-size:11px;margin-top:12px;color:var(--muted);border:1px solid var(--line);padding:8px 12px;border-radius:9px}.xm-source-list summary{cursor:pointer}.xm-source-list a{display:block;color:var(--primary-text);padding:3px 0;overflow-wrap:anywhere}.xm-source-list span{display:block;padding:3px 0}.xm-message-state{font-size:11px;color:var(--muted);margin-top:8px}.xm-message-state.error{color:var(--danger)}.xm-typing{display:inline-flex;gap:5px;align-items:center;color:var(--muted);font-size:12px}.xm-typing i{width:5px;height:5px;border-radius:50%;background:var(--primary);animation:blink 1.2s ease-in-out infinite}.xm-typing i:nth-child(2){animation-delay:.2s}.xm-typing i:nth-child(3){animation-delay:.4s}@keyframes blink{50%{opacity:.2;transform:translateY(-2px)}}.xm-bottom{position:relative;padding:10px max(24px,calc((100% - 790px)/2)) 12px}.xm-composer{border:1px solid var(--line);border-radius:17px;padding:12px 14px 10px;background:var(--bg);box-shadow:var(--composer-shadow);transition:border-color .2s}.xm-composer:focus-within,.xm-composer.dragging{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 15%,transparent)}.xm-composer textarea{display:block;resize:none;width:100%;max-height:160px;min-height:62px;outline:none!important;border:0;background:transparent;color:var(--text);padding:3px;line-height:1.7;font-size:13px}.xm-composer textarea::placeholder{color:var(--muted)}.xm-composer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:7px}.xm-composer-tools{display:flex;align-items:center;gap:5px;min-width:0}.xm-attach,.xm-tool{display:inline-flex;align-items:center;gap:5px;font-size:11px;background:transparent;color:var(--muted);border:0;border-radius:7px;padding:6px 7px;white-space:nowrap}.xm-attach svg,.xm-tool svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.xm-tool.selected{background:var(--pale);color:var(--primary-text)}.xm-send{display:inline-flex;justify-content:center;align-items:center;gap:6px;border:0;border-radius:9px;padding:8px 12px;background:var(--primary);color:var(--on-primary);font-size:12px;white-space:nowrap;flex-shrink:0}.xm-stop{background:var(--soft);color:var(--text);border:1px solid var(--line)}.xm-composer-hint{display:flex;justify-content:space-between;gap:10px;margin:7px 3px 0;color:var(--muted);font-size:9px}.xm-notice{font-size:11px;color:var(--danger);line-height:1.7;margin:7px 3px 0}.xm-notice:empty{display:none}.xm-attachments{display:flex;gap:8px;flex-wrap:wrap}.xm-attachment{display:flex;align-items:center;gap:7px;min-width:0;max-width:100%;padding:6px;border-radius:9px;border:1px solid var(--line);font-size:11px;background:var(--soft);margin-bottom:8px}.xm-attachment img{width:38px;height:38px;object-fit:cover;border-radius:5px}.xm-attachment>span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:150px}.xm-attachment small{display:block;color:var(--muted);font-size:9px}.xm-attachment button{padding:2px 5px;border:0;background:transparent;color:var(--muted)}.xm-message .xm-attachment{white-space:normal;margin-top:8px}.xm-scroll-bottom{position:absolute;right:32px;top:-33px;border:1px solid var(--line);border-radius:20px;background:var(--bg);color:var(--muted);font-size:11px;padding:6px 12px;box-shadow:0 3px 10px #0001}.xm-dialog{border:1px solid var(--line);border-radius:16px;width:min(440px,calc(100vw - 32px));padding:24px;background:var(--bg);color:var(--text)}.xm-dialog::backdrop{background:var(--overlay);backdrop-filter:blur(3px)}.xm-dialog h2{font-size:17px;margin:0}.xm-dialog p{font-size:12px;color:var(--muted);line-height:1.8}.xm-dialog label{display:block;font-size:12px;margin-top:20px}.xm-dialog input{display:block;width:100%;border:1px solid var(--line);border-radius:8px;background:var(--soft);color:var(--text);padding:10px;margin-top:6px}.xm-dialog-title{display:flex;align-items:center;justify-content:space-between}.xm-dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.xm-dialog-actions>button:not(.xm-send){padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--soft);font-size:12px}.xm-dialog-actions .xm-danger{color:var(--danger)}.mobile-only{display:none}.xm-backdrop{position:fixed;inset:0;border:0;background:var(--overlay);z-index:3}@media(max-width:950px){.xm-history{width:185px}.xm-header{padding:14px 18px}.xm-messages{padding:24px 20px}.xm-bottom{padding:10px 18px 12px}}@media(max-width:740px){.mobile-only{display:inline-grid}.xm-history{position:fixed;inset:0 auto 0 0;width:240px;transform:translateX(-100%);z-index:4;transition:transform .2s}.history-open .xm-history{transform:translateX(0)}.xm-history-heading .xm-icon-button{margin-left:auto}.xm-history-remove{opacity:1}.xm-header{padding:12px;gap:7px;min-height:66px}.xm-header-title>strong{font-size:12px}.xm-header-title>span{font-size:9px}.xm-model select{font-size:11px;max-width:125px;padding:6px}.xm-messages{padding:20px 16px}.xm-bottom{padding:8px 12px 10px}.xm-welcome{margin-top:clamp(18px,4vh,55px)}.xm-welcome h1{font-size:25px}.xm-prompt{padding:13px;gap:8px}.xm-prompts{gap:8px}.xm-prompt small{font-size:10px}.xm-composer{padding:10px}.xm-composer-tools{gap:1px}.xm-tool,.xm-attach{padding:6px 5px;font-size:10px}.xm-send{padding:8px 10px}.xm-composer-hint{font-size:8px}.xm-message.user{padding-left:10px}.xm-message.user .xm-message-body{max-width:94%}.xm-avatar{width:25px;height:25px}.xm-message{gap:8px}.xm-markdown{font-size:13px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}

.xm-new:hover,.xm-attach:hover,.xm-tool:hover{border-color:var(--primary);background:var(--pale);color:var(--primary-text)}
.xm-history-row.active{box-shadow:inset 3px 0 0 var(--primary);color:var(--primary-text)}
.xm-search:focus-within{color:var(--primary-text)}
.xm-tool.selected{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--primary) 25%,transparent)}
.xm-send:not(.xm-stop):hover:not(:disabled){background:var(--primary-hover)}
::selection{background:var(--pale);color:var(--text)}