:root{--bg:#0b1526;--panel:#121f32;--border:#2a3a51;--text:#e7eef9;--muted:#9aaec7;--cyan:#44d5d1;--blue:#5eabf8;--orange:#f3ad63;--red:#fb7880;--font:'Microsoft YaHei','PingFang SC','Noto Sans CJK SC',system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font)}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}button:disabled{cursor:default;opacity:.6}a{color:var(--cyan);text-decoration:none}h1,h2,h3,p{margin:0}h1{font-size:1.45rem;font-weight:650;letter-spacing:.03em}h2{font-size:1.3rem;font-weight:600}h3{font-size:1rem;font-weight:600}h3 small{display:block;font-size:.875rem;font-weight:400;color:var(--muted)}p{margin:.45rem 0}small,.muted{font-size:.875rem;color:var(--muted)}.app{display:flex;min-height:100vh}.rail{width:220px;flex-shrink:0;background:#0e192b;border-right:1px solid var(--border);padding:30px 18px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:10}.brand{display:flex;gap:12px;align-items:center;font-weight:600;color:var(--text);font-size:1rem}.brand small{display:block;font-weight:400;font-size:.75rem;color:var(--muted)}.brand-symbol{width:38px;height:38px;display:grid;place-items:center;background:var(--cyan);border-radius:9px;color:var(--bg);font-weight:700}.rail-label{font-size:.75rem;letter-spacing:.13em;color:#778da8;margin:40px 10px 12px}.nav{display:flex;align-items:center;gap:14px;border:0;background:transparent;width:100%;padding:13px 12px;margin:3px 0;text-align:left;color:var(--muted);border-radius:7px;font-size:.9375rem}.nav span{font-size:.75rem;opacity:.75}.nav.active{color:var(--cyan);background:#183340;box-shadow:inset 3px 0 var(--cyan)}.rail-foot{margin-top:auto;padding:24px 8px 0}.rail-foot p{font-size:.875rem;margin:12px 0;color:var(--muted)}.rail-foot .subtle{display:block;font-size:.8125rem;padding:6px 0;text-align:left}.rail-foot small{display:block;margin-top:14px;font-size:.75rem}main{margin-left:220px;width:calc(100% - 220px);padding:26px 30px;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--border)}.eyebrow{font-size:.75rem;color:var(--muted);letter-spacing:.14em;margin:0 0 4px}.header-meta{display:flex;align-items:center;gap:15px;color:var(--muted);font-size:.875rem}.tag{display:inline-block;font-size:.75rem;padding:3px 9px;border:1px solid var(--border);border-radius:4px;color:var(--muted);white-space:nowrap}.tag.cyan{border-color:#2c6267;color:var(--cyan);background:#15303a}.notice{font-size:.8125rem;color:#b4c2d6;padding:12px 0 14px}.view{display:none}.view.active{display:block}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:10px 0 20px}.section-head.compact{margin-top:24px;margin-bottom:12px}.inline-control{display:flex;align-items:center;gap:10px;font-size:.875rem;color:var(--muted)}select,input,textarea{color:var(--text);background:#0d1a2d;border:1px solid #34455d;border-radius:5px;padding:8px 10px;min-width:0}select{max-width:300px}input[type=range]{width:100%;padding:0;accent-color:var(--cyan);border:0}textarea{resize:vertical}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px}.metric{background:var(--panel);border:1px solid var(--border);padding:16px 20px;border-radius:8px}.metric .label{font-size:.875rem;color:var(--muted)}.metric .value{font-size:1.75rem;font-weight:600;letter-spacing:-.02em;line-height:1.6}.metric .unit{font-size:.8125rem;color:var(--muted);font-weight:400;margin-left:5px}.metric .hint{font-size:.75rem;color:var(--muted)}.orange{color:var(--orange)}.cyan-text{color:var(--cyan)}.red{color:var(--red)}.overview-layout{display:grid;grid-template-columns:190px minmax(350px,1fr) 248px;gap:14px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:16px;min-width:0}.overview-layout>.panel{margin:0}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px}.block-list{padding:16px}.block{background:none;border:1px solid transparent;color:var(--text);padding:10px 9px;width:100%;display:block;text-align:left;border-radius:5px;margin:4px 0;font-size:.875rem}.block span{display:block;font-size:.75rem;color:var(--muted)}.block.selected{background:#1d3444;border-color:#396268}.small-divider{border-top:1px solid var(--border);margin:15px 0}.chain-item{display:block;width:100%;text-align:left;background:transparent;border:0;color:var(--muted);padding:7px;font-size:.875rem}.chain-item.selected{color:var(--cyan)}.scene-panel{padding:0;overflow:hidden}.scene-toolbar{padding:13px 16px;display:flex;justify-content:space-between;align-items:center;gap:8px;border-bottom:1px solid var(--border);flex-wrap:wrap}.scene-toolbar .muted{font-size:.75rem;margin-left:7px}.segmented{display:flex;background:#0a1628;border-radius:5px;padding:3px}.segmented button{border:0;background:none;color:var(--muted);font-size:.8125rem;padding:4px 10px;border-radius:4px}.segmented button.active{background:#244151;color:var(--cyan)}#scene{height:365px;position:relative;width:100%;overflow:hidden;background:#0c192a}#scene canvas{display:block;width:100%;height:100%;touch-action:none}.scene-footer{display:flex;gap:14px;padding:10px 16px;align-items:center;font-size:.75rem;border-top:1px solid var(--border);color:var(--muted)}.scene-footer button{margin-left:auto;font-size:.75rem}.swatch{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px}.sewer{background:var(--orange)}.storm{background:var(--blue)}.treated{background:var(--cyan)}.scene-help{padding:0 16px 10px;font-size:.75rem;color:var(--muted)}.node-panel{padding:18px}.node-panel h3{font-size:1.1rem;margin-top:6px}.node-panel p{font-size:.875rem}.node-panel .node-id{font-size:.75rem;color:var(--cyan)}.node-section{margin-top:14px;border-top:1px solid var(--border);padding-top:12px}.node-section strong{font-size:.8125rem;color:var(--muted);font-weight:400}.node-section ul{padding-left:18px;font-size:.8125rem;margin:6px 0}.judgment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.judgment{padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.judgment .number{font-size:.75rem;color:var(--cyan);letter-spacing:.1em}.judgment h3{margin:5px 0}.judgment p{font-size:.875rem;color:var(--muted)}.subtle{border:0;background:none;color:var(--cyan);padding:5px;font-size:.875rem}.primary{background:var(--cyan);color:#0b2430;border:1px solid var(--cyan);border-radius:5px;font-weight:600;padding:9px 15px;font-size:.9375rem}.wide{width:100%;margin-top:10px}.sandbox-layout{display:grid;grid-template-columns:285px minmax(0,1fr);gap:18px}.controls{margin:0}.slider-field{margin:20px 0}.slider-label{display:flex;justify-content:space-between;gap:10px;font-size:.875rem;margin-bottom:8px}.slider-label output{color:var(--cyan);white-space:nowrap}.slider-field small{display:block;font-size:.75rem}.chart-panel{padding:18px}.chart-panel svg{width:100%;height:245px;display:block}.chart-panel text{font-family:var(--font)}.callout{padding:12px 15px;background:#162f3b;border-left:3px solid var(--cyan);font-size:.875rem;margin-top:10px}.callout.warn{background:#362c25;border-color:var(--orange)}.comparison table,table{width:100%;border-collapse:collapse;font-size:.875rem}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}th{color:var(--muted);font-weight:500}.table-wrap{overflow:auto}.method{margin-top:18px;font-size:.875rem}.method summary{cursor:pointer;font-weight:600}.method p{color:var(--muted)}.training-summary{display:flex;align-items:center;justify-content:space-between;gap:18px}.training-summary p{font-size:.875rem;color:var(--muted)}.score{white-space:nowrap;text-align:right;font-size:1.75rem;color:var(--cyan)}.score small{display:block;font-size:.75rem}.round-tabs{display:flex;gap:10px;margin:20px 0}.round-tab{border:1px solid var(--border);border-radius:5px;padding:9px 16px;background:var(--panel);color:var(--muted);font-size:.875rem}.round-tab.active{border-color:var(--cyan);color:var(--cyan)}.training-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:18px}.evidence-item{padding:12px 0;border-bottom:1px solid var(--border);font-size:.9375rem}.evidence-item small{display:block;font-size:.75rem}.decision{display:block;width:100%;text-align:left;background:#0e1b2d;border:1px solid var(--border);border-radius:5px;padding:13px 15px;color:var(--text);margin:10px 0;font-size:.9375rem}.decision.chosen{border-color:var(--cyan);background:#1b3540}.decision b{display:inline-block;color:var(--cyan);margin-right:8px;font-size:.875rem}.role-card{padding:15px 0;border-bottom:1px solid var(--border)}.role-card h4{margin:0 0 8px;font-size:.9375rem;color:var(--cyan)}.role-card p{font-size:.875rem}.role-card small{font-size:.75rem}.evidence-layout{display:grid;grid-template-columns:360px minmax(0,1fr);gap:18px}form label{display:block;font-size:.875rem;margin:14px 0}form label input:not([type=checkbox]),form label textarea,form label select{display:block;width:100%;margin-top:6px;max-width:none}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.check{display:flex;align-items:center;gap:9px}.check input{accent-color:var(--cyan);width:17px;height:17px}.requirement{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--border);padding:12px 0;font-size:.875rem}.requirement .state{color:var(--orange);white-space:nowrap}.requirement .state.done{color:var(--cyan)}.ledger-entry{padding:12px 0;border-bottom:1px solid var(--border)}.ledger-entry p{font-size:.875rem}.button-row{display:flex;gap:12px;flex-wrap:wrap}.source-card{display:grid;grid-template-columns:70px 1fr;gap:16px;margin-bottom:12px}.source-card p{font-size:.875rem;color:var(--muted)}.source-card strong{font-size:.9375rem}.boundary .judgment-grid{margin-top:14px}.boundary p{font-size:.875rem;color:var(--muted)}#source-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}#source-cards .panel{margin:0}#pilot-plan{overflow:auto;margin-top:10px}#ai-prompt{width:100%;font-size:.875rem}footer{padding-top:25px;margin-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:.75rem}#toast{position:fixed;bottom:20px;right:24px;max-width:80vw;background:#275361;color:white;padding:10px 20px;border-radius:6px;z-index:30;display:none}.empty{padding:20px 0;color:var(--muted);font-size:.875rem}.redline{color:var(--red)}
@media(min-width:1550px){main{padding:30px 40px}.overview-layout{grid-template-columns:210px minmax(400px,1fr) 290px}#scene{height:430px}}
@media(max-width:1200px){.rail{width:180px;padding:25px 12px}main{margin-left:180px;width:calc(100% - 180px);padding:22px}.overview-layout{grid-template-columns:165px minmax(300px,1fr)}.node-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px}.node-section{margin:0;border:0;padding:0}.header-meta>span:last-child{display:none}.evidence-layout{grid-template-columns:310px minmax(0,1fr)}.sandbox-layout{grid-template-columns:250px minmax(0,1fr)}}
@media(max-width:900px){.rail{position:relative;width:auto;inset:auto;padding:14px 16px;border-right:0;border-bottom:1px solid var(--border)}.brand{font-size:.9375rem}.brand small{display:none}.rail-label,.rail-foot{display:none}.rail nav{display:flex;gap:2px;margin-top:14px;overflow:auto}.nav{width:auto;white-space:nowrap;padding:8px 10px;font-size:.875rem}.nav span{display:none}.app{display:block}main{margin:0;width:100%;padding:20px}.section-head{align-items:start}.inline-control{flex-direction:column;align-items:start;gap:3px}.topbar h1{font-size:1.15rem}.metric-grid{gap:8px}.metric{padding:12px}.metric .value{font-size:1.5rem}.overview-layout{grid-template-columns:160px minmax(0,1fr)}.sandbox-layout{grid-template-columns:230px minmax(0,1fr)}.sandbox-layout .metric-grid{grid-template-columns:repeat(2,1fr)}.training-layout,.evidence-layout{grid-template-columns:1fr}.training-summary{align-items:start}.evidence-layout>form{margin:0}#source-cards{grid-template-columns:1fr}}
@media(max-width:600px){main{padding:16px 12px}.topbar{gap:5px}.header-meta{display:none}.notice{font-size:.75rem}.section-head{flex-direction:column;gap:12px;margin-bottom:14px}h2{font-size:1.15rem}.inline-control{width:100%;flex-direction:row;align-items:center}.inline-control select{max-width:none;flex:1;width:100%}.metric-grid{grid-template-columns:repeat(2,1fr)}.overview-layout{grid-template-columns:1fr}.block-list{display:none}#scene{height:340px}.scene-toolbar{padding:10px}.scene-toolbar .muted{display:none}.scene-footer{gap:10px}.node-panel{display:block}.node-section{border-top:1px solid var(--border);margin-top:12px;padding-top:10px}.judgment-grid{grid-template-columns:1fr}.sandbox-layout{grid-template-columns:1fr}.controls{padding:16px}.slider-field{margin:12px 0}.training-summary{flex-direction:column;gap:5px}.score{font-size:1.4rem;display:flex;gap:10px;align-items:center}.round-tabs{gap:5px}.round-tab{padding:8px 10px;flex:1;font-size:.8125rem}.panel{padding:16px}.scene-panel{padding:0}.source-card{grid-template-columns:58px 1fr;gap:10px}.form-row{grid-template-columns:1fr}th,td{padding:8px}.chart-panel svg{height:230px}}

/* Ten workspaces remain reachable on shorter desktop screens. */
@media(min-width:901px){.rail{overflow-y:auto}.rail nav{flex-shrink:0}.rail-label{margin-top:24px}.nav{padding-top:10px;padding-bottom:10px}.rail-foot{padding-top:18px}}