:root{
  --navy:#1F3A5F; --accent:#2E6E8E; --light:#EAF1F5; --line:#D5DEE4;
  --ok:#1E7D5A; --bg:#F5F7F9; --text:#222; --muted:#6b7785;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--accent)}
.topbar{background:var(--navy);color:#fff;padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.topbar h1{font-size:18px;margin:0;font-weight:700;letter-spacing:.2px}
.topbar .sub{font-size:12px;opacity:.8}
.topbar a{color:#cfe0ea;font-size:13px;text-decoration:none}
.wrap{max-width:1080px;margin:24px auto;padding:0 18px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 1px 3px rgba(20,40,60,.04)}
.card h2{margin:0 0 14px;font-size:16px;color:var(--navy)}
.drop{border:2px dashed #b8c6d0;border-radius:12px;padding:36px 18px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s;background:#fbfdfe}
.drop.drag{border-color:var(--accent);background:var(--light);color:var(--navy)}
.drop strong{color:var(--navy)}
canvas{width:100%;height:280px;background:#fff;border:1px solid var(--line);border-radius:8px}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
select,input[type=number],input[type=text],input[type=email],input[type=password],textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff;color:var(--text)}
select:focus,input:focus,textarea:focus{outline:none;border-color:var(--accent)}
.row{display:flex;gap:12px}.row>*{flex:1}
button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:11px 18px;font-size:14px;font-weight:600;cursor:pointer}
button:hover{background:#255a75}
button.ghost{background:#fff;color:var(--accent);border:1px solid var(--accent)}
button.sm{padding:6px 10px;font-size:12px}
button.danger{background:#b5462f}
.stat{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px}
.stat:last-child{border-bottom:0}
.stat b{color:var(--navy)}
.total{margin-top:12px;padding:16px;background:var(--navy);color:#fff;border-radius:10px;text-align:center}
.total .amt{font-size:30px;font-weight:800;letter-spacing:.5px}
.total .unit{font-size:13px;opacity:.85}
.muted{color:var(--muted);font-size:12px}
.badge{display:inline-block;background:var(--light);color:var(--navy);border-radius:20px;padding:3px 10px;font-size:12px;margin:2px}
.hidden{display:none}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{border:1px solid var(--line);padding:6px 8px;text-align:left}
th{background:var(--navy);color:#fff;font-weight:600}
.matblock{border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px;background:#fbfdfe}
.thick-row{display:grid;grid-template-columns:70px 1fr 1fr 1fr 34px;gap:8px;align-items:center;margin-bottom:6px}
.thick-row .hd{font-size:11px;color:var(--muted)}
.notice{background:#fff6e5;border:1px solid #f0d9a8;color:#7a5a10;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:14px}
.ok-msg{background:#e6f5ee;border:1px solid #a8dcc2;color:#186247;padding:10px 12px;border-radius:8px;font-size:13px;margin:10px 0}
.err-msg{background:#fdecea;border:1px solid #f0b6ab;color:#9a331f;padding:10px 12px;border-radius:8px;font-size:13px;margin:10px 0}
.tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.tabs button{background:#fff;color:var(--navy);border:1px solid var(--line)}
.tabs button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.login-box{max-width:360px;margin:80px auto}
.top-right{display:flex;align-items:center;gap:14px}
.lang-select{width:auto;padding:5px 8px;border-radius:6px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;font-size:13px}
.lang-select option{color:#222}
.part-card{display:grid;grid-template-columns:220px 1fr 260px;gap:16px;border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:14px;background:#fbfdfe}
@media(max-width:900px){.part-card{grid-template-columns:1fr}}
.part-prev canvas{width:100%;height:180px;background:#fff;border:1px solid var(--line);border-radius:8px}
.part-name{font-weight:700;color:var(--navy);margin-bottom:6px;word-break:break-all}
.part-ctrl label{margin-top:6px}
.op-row{display:grid;grid-template-columns:1fr 70px 34px;gap:6px;margin-top:6px;align-items:center}
.parts-tbl{margin-bottom:12px}
.parts-tbl td{vertical-align:top}
#printArea{display:none}
body.printing .topbar,body.printing .wrap{display:none!important}
body.printing #printArea{display:block!important}
@media print{
  .topbar,.wrap{display:none!important}
  #printArea{display:block!important}
}
#printArea{font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:#222;padding:30px}
.q-head{display:flex;justify-content:space-between;border-bottom:3px solid var(--navy);padding-bottom:14px;margin-bottom:20px}
.q-brand{font-size:22px;font-weight:800;color:var(--navy)}
.q-company{color:var(--muted);margin-top:4px}
.q-meta{text-align:right;font-size:13px}
.q-title{font-size:18px;font-weight:800;color:var(--accent);margin-bottom:6px}
.q-tbl{width:100%;border-collapse:collapse;font-size:13px;margin:10px 0}
.q-tbl th{background:var(--navy);color:#fff;padding:7px 9px;text-align:left}
.q-tbl td{border:1px solid #ccc;padding:7px 9px}
.q-total{text-align:right;font-size:20px;font-weight:800;color:var(--navy);margin:14px 0}
.q-note{font-size:11px;color:#666;border-top:1px solid #ddd;padding-top:10px}
.sb-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:18px}
@media(max-width:820px){.sb-grid{grid-template-columns:1fr}}
.sb-corners{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:8px}
.sb-fields{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:8px}
.sb-cut-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px;align-items:center}
.sb-cut-row input[type=number]{width:64px;flex:0 0 auto}
.sb-cut-row select{width:auto;flex:0 1 auto;min-width:90px}
.sb-shape-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin:6px 0 4px}
@media(max-width:900px){.sb-shape-grid{grid-template-columns:repeat(6,1fr)}}
.sb-shape-btn{background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 0;color:#5a6b7a;cursor:pointer;display:flex;align-items:center;justify-content:center}
.sb-shape-btn:hover{border-color:var(--accent);color:var(--accent);background:#fff}
.sb-shape-btn.sel{border-color:var(--navy);color:var(--navy);background:var(--light);box-shadow:0 0 0 1px var(--navy) inset}
#sbHoleGroups{margin-top:8px}
.sb-corners span{font-size:11px}
#sbPreview{width:100%;height:260px;background:#fff;border:1px solid var(--line);border-radius:8px}
.nest-sheets{display:flex;flex-wrap:wrap;gap:12px;margin:10px 0 16px}
.nest-sheet canvas{border:1px solid var(--line);border-radius:6px;display:block}
.sheet-row{display:grid;grid-template-columns:70px 1fr 110px 110px 80px;gap:8px;align-items:center;margin-bottom:8px}
@media(max-width:820px){.sheet-row{grid-template-columns:60px 1fr;grid-auto-rows:auto}}
.chip{display:inline-block;background:var(--light);color:var(--navy);border:1px solid var(--line);border-radius:16px;padding:3px 10px;font-size:12px;margin:2px 4px 2px 0;white-space:nowrap}
.chip a{color:#b5462f;text-decoration:none;font-weight:700;margin-left:4px}
.sheet-th{font-weight:600;color:var(--navy);font-size:13px}
.op-grid{display:grid;grid-template-columns:90px 1fr 1fr 130px 90px 34px;gap:8px;margin-bottom:6px;align-items:center}
.op-head{display:grid;grid-template-columns:90px 1fr 1fr 130px 90px 34px;gap:8px;font-size:11px;color:var(--muted);margin-bottom:4px}
.top-right a{color:#cfe0ea;font-size:13px;text-decoration:none}