*{box-sizing:border-box;margin:0;padding:0}
  :root{
    --bg:#f3f4f6;--panel:#ffffff;--panel2:#f7f8fa;--border:#e7e9ee;
    --text:#1d1f24;--muted:#7c8794;--accent:#005bff;--accent2:#4f8cff;
    --ok:#1aa251;--err:#e54545;--info:#005bff;
  }
  html,body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.5;min-height:100vh}
  .app{max-width:1400px;margin:0 auto;padding:20px}
  header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--panel);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:12px;margin-bottom:20px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
  header h1{font-size:22px;font-weight:700;color:var(--text)}
  .grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  @media(max-width:900px){.grid{grid-template-columns:1fr}}
  .card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px}
  .card h2{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
  .card h2::before{content:"";display:block;width:3px;height:14px;background:var(--accent);border-radius:2px}
  label{display:block;font-size:11px;color:var(--muted);margin-bottom:4px;font-weight:500}
  input[type=number],input[type=text],select{width:100%;background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:9px 11px;font-size:14px;transition:.15s}
  input:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,91,255,.15)}
  .row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
  .row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:10px}
  .full{grid-column:1/-1}
  .search-box{position:relative}
  .search-box input{padding-left:36px}
  .search-box::before{content:"🔍";position:absolute;left:11px;top:50%;transform:translateY(-50%);font-size:14px;pointer-events:none;opacity:.6}
  .results-list{background:var(--panel2);border:1px solid var(--border);border-radius:8px;max-height:320px;overflow-y:auto;margin-top:8px;position:relative;z-index:5}
  .results-list:empty{display:none}
  .r-row{padding:9px 13px;cursor:pointer;border-bottom:1px solid var(--border);font-size:13px;transition:.1s;border-left:3px solid transparent}
  .r-row:last-child{border-bottom:none}
  .r-row:hover{background:rgba(0,91,255,.06);border-left-color:var(--accent)}
  .r-row.selected{background:rgba(0,91,255,.1);border-left-color:var(--accent)}
  .r-name{font-weight:600;color:var(--text)}
  .r-meta{font-size:11px;color:var(--muted);margin-top:2px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
  .r-rate{color:var(--accent2);font-weight:600}
  .badge{display:inline-block;padding:1px 6px;border-radius:8px;font-size:10px;background:var(--panel);color:var(--accent2)}
  .selected-cat{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:11px 14px;margin-top:10px;border-left:3px solid var(--accent)}
  .selected-cat .name{font-weight:600;color:var(--accent2);font-size:14px}
  .selected-cat .path{font-size:11px;color:var(--muted);margin:4px 0}
  .selected-cat .rates{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;margin-top:6px;color:var(--text)}
  .logistics-list{background:var(--panel2);border:1px solid var(--border);border-radius:8px;margin-top:8px;overflow:hidden}
  .log-row{padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:13px;transition:.1s;border-left:3px solid transparent}
  .log-row:last-child{border-bottom:none}
  .log-row:hover{background:rgba(0,91,255,.05)}
  .log-row.active{background:rgba(0,91,255,.09);border-left-color:var(--accent)}
  .log-row .name{font-weight:600}
  .log-row .desc{font-size:11px;color:var(--muted);margin-top:2px}
  .log-row .price{color:var(--accent2);font-weight:600}
  .summary-card{background:var(--accent);color:#fff;padding:16px 20px;border-radius:10px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 10px rgba(0,91,255,.25)}
  .summary-card .label{font-size:12px;opacity:.9}
  .summary-card .value{font-size:24px;font-weight:700;margin-top:2px}
  .results{margin-top:20px}
  .r-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(175px,1fr));gap:10px;margin-top:14px}
  .r-item{background:var(--panel2);padding:11px 13px;border-radius:8px;border-left:3px solid var(--border)}
  .r-item .l{font-size:11px;color:var(--muted);margin-bottom:4px}
  .r-item .v{font-size:16px;font-weight:600;color:var(--text)}
  .r-item.profit .v{color:var(--ok)}
  .r-item.loss .v{color:var(--err)}
  .r-item.margin .v{color:var(--accent2)}
  .r-item.highlight{border-left-color:var(--accent)}
  .helper{font-size:11px;color:var(--muted);margin-top:4px}
  .info-bar{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:10px;padding:10px 14px;background:var(--panel2);border-radius:6px;border:1px dashed var(--border)}
  .info-bar b{color:var(--accent2)}
  .size-warn{font-size:12px;color:var(--err);margin-top:6px;display:none;padding:6px 10px;background:rgba(229,69,69,.08);border-radius:5px;border:1px solid rgba(229,69,69,.3)}
  .size-warn.show{display:block}
  .size-ok{font-size:12px;color:var(--ok);margin-top:6px;display:none;padding:6px 10px;background:rgba(26,162,81,.1);border-radius:5px}
  .size-ok.show{display:block}
  .btn{display:inline-block;padding:8px 16px;background:var(--accent);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600;transition:.15s}
  .btn:hover{background:var(--accent2)}
  .footer{text-align:center;padding:20px;color:var(--muted);font-size:11px;margin-top:30px}
  ::-webkit-scrollbar{width:8px;height:8px}
  ::-webkit-scrollbar-track{background:var(--panel)}
  ::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
  ::-webkit-scrollbar-thumb:hover{background:var(--accent)}
  .cat-hint{font-size:11px;color:var(--muted);margin-top:4px;text-align:center;padding:6px}
  .loading-overlay{position:fixed;inset:0;background:rgba(243,244,246,.96);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px;z-index:9999}
  .loading-overlay.hidden{display:none}
  .spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
  @keyframes spin{to{transform:rotate(360deg)}}
  .status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
  .status-dot.ok{background:#56d364}
  .status-dot.err{background:#ff7b74}
  .status-dot.loading{background:var(--accent2);animation:pulse 1s infinite}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

  .btn:disabled{opacity:.6;cursor:not-allowed}