:root{color-scheme:dark;--bg:#0b0e12;--surface:#13181e;--raised:#1a2129;--field:#0f141a;--line:#2a343f;--text:#eef3f7;--muted:#aab6c2;--accent:#dfff72;--blue:#79afff;--success:#68dfc0;--warning:#ffc879;--danger:#ff939f;font-family:Inter,"Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);font-size:14px;font-synthesis:none;font-variant-numeric:tabular-nums}
*{box-sizing:border-box}body{margin:0;min-width:0;line-height:1.65}a{color:var(--blue);text-underline-offset:4px}a:hover{color:#b4d1ff}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:4px}button:disabled{opacity:.5;cursor:not-allowed}::selection{background:#405627;color:white}
.app-header{position:sticky;top:0;z-index:40;height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 28px;background:#101419;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:15px;letter-spacing:2px;font-weight:800;color:var(--text);text-decoration:none}.brand-mark{display:grid;place-items:center;letter-spacing:-2px;width:35px;height:35px;border-radius:9px;background:var(--accent);color:#17200d;font-weight:900;font-size:16px}.brand small{display:block;font-size:9px;letter-spacing:3px;color:var(--muted);font-weight:500}.header-context{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:12px}.mode-pill,.status-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:100px;padding:5px 11px;font-size:11px;white-space:nowrap}.mode-pill::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent)}.skip-link{position:fixed;top:-100px;left:24px;z-index:100;background:var(--accent);color:#111;padding:10px 18px;border-radius:6px}.skip-link:focus{top:10px}
.workspace-nav{position:fixed;top:76px;bottom:0;left:0;width:230px;padding:26px 14px;display:flex;flex-direction:column;gap:5px;background:#101419;border-right:1px solid var(--line);overflow:auto;z-index:30}.workspace-nav::before{content:'训练工作区';font-size:10px;font-weight:700;letter-spacing:1.4px;color:var(--muted);padding:0 14px 16px}.workspace-nav a{display:flex;align-items:center;gap:11px;color:var(--muted);border:1px solid transparent;border-radius:7px;text-decoration:none;padding:10px 12px;white-space:normal;line-height:1.4}.workspace-nav a:hover{background:var(--raised);color:var(--text)}.workspace-nav a[aria-current=true]{background:#242c1d;border-color:#4c5b30;color:var(--accent)}.nav-icon{width:17px;height:17px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5}.nav-index{font-size:10px;font-family:ui-monospace,monospace;color:var(--muted);margin-left:auto}
main,.trusted-main{margin:0 0 0 230px;max-width:1600px;padding:28px 36px 70px;min-width:0}h1,h2,h3,h4{line-height:1.3;letter-spacing:-.025em;color:var(--text)}h1{font-size:clamp(26px,3vw,40px);font-weight:700;margin:10px 0 15px}h2{font-size:21px;font-weight:650;margin:0 0 14px}h3{font-size:16px;margin:28px 0 12px}p{line-height:1.75;color:var(--muted);overflow-wrap:anywhere}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:var(--accent);margin:2px 0 12px}.workspace-lead{max-width:850px;margin:0 0 25px}.fact-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.fact-card{border:1px solid var(--line);border-radius:9px;padding:15px 18px;background:var(--surface)}.fact-card small{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}.fact-card strong{font-size:16px;font-weight:600}.fact-card .fact-value{color:var(--accent)}
.card,.trusted-main>section{min-width:0;padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin:20px 0;scroll-margin-top:100px;box-shadow:0 5px 16px #00000012}.card>h2,.trusted-main>section>h2{padding-bottom:18px;border-bottom:1px solid var(--line)}.layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.layout>*{min-width:0}.field{display:grid;gap:7px;margin:14px 0;color:#cbd5df;font-size:12px;align-content:start}.field input,.field select,.field textarea{font-size:14px}.field:has(input[type=checkbox]){display:flex;align-items:center;gap:10px}.row,.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0}label{color:#cbd5df}fieldset{min-inline-size:0;border:1px solid var(--line);border-radius:8px;padding:16px}legend{color:var(--muted);padding:0 8px}input,select,textarea{width:100%;min-width:0;color:var(--text);background:var(--field);border:1px solid #3c4856;border-radius:6px;padding:10px 12px;line-height:1.4;transition:border-color .12s}input:hover,select:hover,textarea:hover{border-color:#64758a}input::placeholder,textarea::placeholder{color:#8793a1;opacity:1}textarea{font:12px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical;max-width:100%}input[type=checkbox],input[type=radio]{width:17px;height:17px;flex:none;accent-color:var(--blue)}input[type=file]{font-size:12px;padding:8px}input[type=file]::file-selector-button{font:inherit;background:var(--raised);color:var(--text);border:1px solid #4a5b6c;border-radius:4px;padding:7px 12px;margin-right:12px}
button{border:1px solid #405163;background:#202a35;color:var(--text);border-radius:6px;padding:9px 14px;line-height:1.45;font-size:12px;font-weight:550;cursor:pointer;white-space:normal;transition:background .12s,border-color .12s}button:hover{background:#2b3a4c;border-color:var(--blue)}button.primary,#login,#create,#save-editor,#dynamic-generate,#autostep{background:var(--accent);border-color:var(--accent);color:#18200c;font-weight:700}button.primary:hover,#login:hover,#create:hover,#save-editor:hover,#dynamic-generate:hover,#autostep:hover{background:#eaffad;border-color:#eaffad}#pause,#takeover,#dynamic-pause,#restore{border-color:#8e7043;color:var(--warning);background:#29231b}#logout{background:transparent}.error,[role=alert]{color:var(--danger)!important;font-weight:550}#status,#dynamic-status,#preview-status{font-size:12px;overflow-wrap:anywhere}#status{position:sticky;top:88px;z-index:20;padding:12px 16px;border:1px solid #4a596a;background:#1c2834;border-radius:7px;color:#c8e0ff;box-shadow:0 4px 12px #0003}#status.error{border-color:#75414b;background:#281c23}.notice{padding:13px 16px;color:#ebd5b0;background:#25221b;border:1px solid #51432e;border-left:3px solid var(--warning);border-radius:6px;font-size:12px}.notice:empty{display:none}
details{border:1px solid var(--line);background:#10151a;border-radius:8px;margin:16px 0;padding:0 16px 12px;min-width:0}summary{padding:13px 0;cursor:pointer;color:#d4dee8;font-size:12px;font-weight:600;line-height:1.5}summary::marker{color:var(--blue)}details[open]>summary{margin-bottom:12px;border-bottom:1px solid var(--line)}pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;max-height:380px;overflow:auto;padding:15px;background:#0c1117;border:1px solid var(--line);border-radius:7px;color:#b8c8db;font:11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}pre:empty{display:none}.table-wrap{max-width:100%;overflow:auto;scrollbar-width:thin}table{border-collapse:collapse;width:100%;font-size:12px;margin:14px 0}th{background:#1d2731;color:#bdcbd9;font-weight:600;font-size:11px;letter-spacing:.02em}th,td{text-align:left;padding:12px 13px;border:1px solid var(--line);overflow-wrap:anywhere;white-space:normal;vertical-align:top}tr:nth-child(even) td{background:#151d25}tr:hover td{background:#1a2631}td{color:#e2eaf1}dl{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:10px;overflow-wrap:anywhere}dt{font-weight:600;color:var(--muted)}dd{margin:0;white-space:pre-wrap}#source-list{list-style:none;padding:0}#source-list li{margin-bottom:7px}#source-list button{width:100%;text-align:left}#source-list button[aria-current=true]{background:#222d1a;color:var(--accent);border-color:#667644}
#dynamic-config-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}#dynamic-position,#workbench-position,#replay-position,#revision{border-left:2px solid var(--blue);padding:7px 12px;color:#cce0f9;background:#101b27;font:12px/1.7 ui-monospace,monospace;overflow-wrap:anywhere}#dynamic-results h3,#simulation-results h3{color:#cce0f9}#dynamic-results table,#dynamic-experiment-results table{min-width:670px}#dynamic-experiment-results,#dynamic-score-results,#dynamic-review-history{overflow:auto;max-width:100%}.trusted-main>section>label{display:inline-grid;gap:7px;min-width:180px;max-width:100%;margin:8px 10px 12px 0;font-size:12px}.trusted-main>section>label:has([type=checkbox]){display:flex;align-items:center}.trusted-main>section>label input,.trusted-main>section>label select{width:100%}#project-id{font-family:ui-monospace,monospace;font-size:12px}iframe{width:100%;height:850px;max-width:100%;border:1px solid var(--line);border-radius:8px;background:var(--bg)}.compat-info{border:1px dashed #496482;padding:15px;border-radius:8px;color:var(--muted);font-size:12px}
.embedded .app-header,.embedded .workspace-nav,.embedded .workspace-intro,.embedded .skip-link{display:none}.embedded main{margin:0;padding:16px;max-width:none}.embedded .card{box-shadow:none;margin-top:0}.embedded .card~.card{margin-top:20px}[hidden]{display:none!important}
@media(min-width:1800px){main,.trusted-main{margin-right:auto;margin-left:max(230px,calc((100vw - 1500px)/2 + 180px))}}
@media(max-width:1000px){main,.trusted-main{padding:22px}.workspace-nav{width:205px}main,.trusted-main{margin-left:205px}.app-header{padding:0 20px}.layout{gap:14px}.trusted-main>section>label{min-width:0;width:100%;margin-right:0}.card,.trusted-main>section{padding:20px}}
@media(max-width:720px){.app-header{height:64px;padding:0 16px}.header-context{gap:8px}.header-context>span:first-child{display:none}.brand{font-size:13px;gap:9px;letter-spacing:1.4px}.brand small{font-size:8px}.brand-mark{width:30px;height:30px}.mode-pill{font-size:10px;padding:4px 8px}.workspace-nav{position:sticky;top:64px;bottom:auto;width:100%;height:54px;padding:6px 10px;display:flex;flex-direction:row;border-right:0;border-bottom:1px solid var(--line);overflow-x:auto;overflow-y:hidden;gap:5px;scrollbar-width:thin}.workspace-nav::before,.nav-index{display:none}.workspace-nav a{flex:none;white-space:nowrap;padding:8px 10px;font-size:11px;gap:7px}.nav-icon{width:14px;height:14px}main,.trusted-main{margin:0;padding:20px 14px 45px}.layout,#dynamic-config-fields{grid-template-columns:minmax(0,1fr);gap:0}.card,.trusted-main>section{padding:18px 14px;scroll-margin-top:135px;border-radius:9px}h1{font-size:26px}h2{font-size:18px}h3{font-size:15px}.fact-strip{gap:7px;grid-template-columns:1fr 1fr}.fact-card{padding:12px}.fact-card:last-child{grid-column:1/-1}.fact-card strong{font-size:14px}input,select,textarea{font-size:16px;padding:10px}button{min-height:42px;max-width:100%}.toolbar button{flex:1 1 130px}.row>*{max-width:100%}.field{margin:12px 0}#status{top:128px;padding:10px 12px}.trusted-main>section>label{width:100%;margin:8px 0 12px}.trusted-main>section>button{margin:5px 3px 5px 0}dl{grid-template-columns:1fr}dd{margin-bottom:12px}pre{font-size:10px;max-height:300px}th,td{padding:9px}details{padding:0 11px 10px}iframe{height:900px}.embedded main{padding:7px}.embedded .card{padding:16px 12px}.workspace-lead{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important;animation:none!important}}
/* Checkbox controls retain intrinsic width inside trusted form labels. */
.trusted-main>section>label input[type=checkbox],.trusted-main>section>label input[type=radio]{width:17px;max-width:17px}

/* Protocol text remains available to diagnostics; visible and accessible table labels are Chinese. */
td[data-zh-value],th[data-zh-value]{font-size:0}td[data-zh-value]::after,th[data-zh-value]::after{content:attr(data-zh-value);font-size:12px}
#incremental-summary{padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--field)}#incremental-progress{width:100%;accent-color:var(--accent)}

/* The beginner surface is a task navigator over the same saved sandbox and engine. */
body.lf-beginner #legacy-workspace,body.lf-beginner .lf-shell-advanced,body.lf-beginner .workspace-intro .fact-strip,body.lf-beginner .workspace-nav{display:none}body.lf-beginner main{margin:0 auto;max-width:1200px}
.lf-workspace{max-width:1080px}.lf-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:18px}.lf-heading h2{border:0;margin:0}.lf-lead{max-width:720px;font-size:15px}.lf-mode{display:flex;gap:5px;padding:4px;border:1px solid var(--line);border-radius:9px;background:var(--field);flex:none}.lf-mode button{border:0;background:transparent}.lf-mode button[aria-pressed=true]{background:var(--accent);color:#17200d}.lf-guide{border:1px solid #556735;border-radius:11px;padding:16px 18px;background:#202b19;margin:16px 0}.lf-guide strong{color:var(--accent)}.lf-guide p{margin:4px 0 10px;color:var(--text)}.lf-tabs{display:flex;flex-wrap:wrap;gap:7px;padding:8px 0 18px;border-bottom:1px solid var(--line);margin-bottom:12px}.lf-tabs button{font-size:12px}.lf-tabs button[aria-current=page]{background:#2b3c1d;color:var(--accent);border-color:#789743}.lf-panel{scroll-margin-top:150px}.lf-panel h3{margin:15px 0}.lf-workspace[data-mode=beginner] .lf-panel:not([data-current=true]),.lf-workspace[data-mode=beginner] .lf-advanced{display:none!important}.lf-workspace[data-mode=pro] .lf-panel{display:block;border-top:1px solid var(--line);padding:16px 0 8px}.lf-create,.lf-ai-guide{padding:16px;border:1px solid var(--line);border-radius:10px;background:#101b22}.lf-input-group{min-width:0}.lf-hint{font-size:12px;color:var(--muted)}.lf-result-summary{padding:14px;border-left:3px solid var(--accent);background:#1b261e;color:var(--text)}.lf-help{margin:0 0 12px;padding:0 12px 10px}.lf-help summary{color:var(--blue)}.lf-help p{margin:5px 0}.lf-panel .fact-strip{margin:16px 0}.lf-ai-guide ol{padding-left:22px}.lf-ai-guide li{padding:3px 0;color:var(--text)}
@media(max-width:720px){.lf-heading{flex-direction:column}.lf-mode{width:100%}.lf-mode button{flex:1}.lf-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.lf-tabs button{min-height:44px}.lf-create,.lf-ai-guide{padding:12px}.lf-guide{padding:14px}}

.zh-protocol[hidden]{display:none!important}