:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;color:#18202f;background:#eef2f6;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{border:1px solid #c8d2df;border-radius:7px;background:#fff;color:#18202f;min-height:36px;padding:0 12px;cursor:pointer}button:hover{border-color:#2563eb}button.primary{background:#2563eb;border-color:#2563eb;color:#fff}input,select{width:100%;border:1px solid #c8d2df;border-radius:7px;background:#fff;color:#18202f;min-height:36px;padding:0 10px}.app-shell{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:100vh}.sidebar{background:#111827;color:#f8fafc;padding:22px 16px}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;background:#38bdf8;color:#082f49;font-weight:800}.brand small,.topbar p,.panel-heading p{display:block;margin:4px 0 0;color:#718096;font-size:13px}.sidebar .brand small{color:#9ca3af}.nav-list{display:grid;gap:8px}.nav-list button{justify-content:flex-start;text-align:left;background:transparent;color:#d1d5db;border-color:transparent}.nav-list button.active{background:#243041;color:#fff}.workspace{min-width:0;padding:22px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.topbar h1{margin:0;font-size:28px;letter-spacing:0}.algorithm-select{max-width:240px}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1fr) 410px;gap:18px}.main-column,.side-column{display:grid;align-content:start;gap:18px}.panel{background:#fff;border:1px solid #dce3ec;border-radius:8px;padding:16px;box-shadow:0 10px 30px #0f172a0f}.panel-heading{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px}.panel-heading h2{margin:0;font-size:17px}.clock{font-size:24px;font-weight:800;color:#2563eb}.button-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.form-grid.compact{grid-template-columns:repeat(5,minmax(0,1fr));align-items:end}label{display:grid;gap:6px;color:#475569;font-size:13px}.shaft-layout{display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;height:min(72vh,760px);min-height:520px}.floor-axis{display:grid;grid-template-rows:repeat(var(--floor-count),1fr);color:#64748b;font-size:12px}.floor-axis span{display:flex;align-items:center;justify-content:flex-end;border-bottom:1px solid #e2e8f0}.elevator-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(78px,1fr));gap:10px}.shaft{position:relative;overflow:hidden;border:1px solid #dbe4ee;border-radius:8px;background:repeating-linear-gradient(to bottom,transparent 0,transparent calc(100% / var(--floor-count) - 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