:root{
  --navy:#0b3d64; --navy-lt:#12507f; --line:#d7dee6; --bg:#eef1f5;
  --txt:#16202b; --muted:#67717d; --red:#aa1414;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  background:var(--bg);color:var(--txt);height:100vh;display:flex;flex-direction:column;overflow:hidden}

/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;gap:18px;padding:10px 18px;background:var(--navy);
  color:#fff;flex-wrap:wrap;box-shadow:0 2px 8px rgba(0,0,0,.2);z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.badge-mini{width:36px;height:36px;border:2px solid #fff;border-radius:50%;display:flex;
  align-items:center;justify-content:center;font-size:11px;font-weight:700;flex:0 0 36px}
.brand strong{display:block;font-size:15px;letter-spacing:1px}
.brand small{display:block;font-size:10px;opacity:.7}
.tabs{display:flex;gap:6px;margin-left:8px}
.tab{padding:8px 16px;border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;
  border-radius:6px;cursor:pointer;font-size:13px;font-family:inherit;transition:.15s}
.tab:hover{background:rgba(255,255,255,.12)}
.tab.active{background:#fff;color:var(--navy);font-weight:700;border-color:#fff}
.actions{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.btn{padding:8px 13px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);
  color:#fff;border-radius:6px;cursor:pointer;font-size:12.5px;font-family:inherit;transition:.15s}
.btn:hover{background:rgba(255,255,255,.2)}
.btn.primary{background:#fff;color:var(--navy);font-weight:700;border-color:#fff}
.btn.primary:hover{background:#dce8f2}
.btn.danger:hover{background:var(--red);border-color:var(--red)}

/* ---------- layout ---------- */
.layout{flex:1;display:grid;grid-template-columns:400px 1fr;overflow:hidden}
.pane{overflow-y:auto;height:100%}
.form-pane{background:#fff;border-right:1px solid var(--line);padding:16px}
.preview-pane{padding:22px;display:flex;justify-content:center;align-items:flex-start;background:var(--bg)}

/* ---------- form ---------- */
fieldset{border:1px solid var(--line);border-radius:8px;padding:12px;margin-bottom:14px}
legend{font-size:12.5px;font-weight:700;color:var(--navy);padding:0 7px;letter-spacing:.5px}
label{display:block;font-size:11.5px;color:var(--muted);margin-bottom:9px;font-weight:500}
input,select,textarea{width:100%;margin-top:3px;padding:7px 9px;border:1px solid var(--line);
  border-radius:5px;font-size:13px;font-family:inherit;color:var(--txt);background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--navy-lt);
  box-shadow:0 0 0 2px rgba(18,80,127,.12)}
textarea{resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.chk{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--txt);margin-bottom:0}
.chk input{width:auto;margin:0}
.chkgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:8px 0 10px;
  padding:9px;background:#f7f9fb;border-radius:6px}
[data-dep]{display:none}
[data-dep].show{display:block}

/* ---------- paper ---------- */
.paper{width:210mm;min-height:297mm;background:#fff;box-shadow:0 4px 22px rgba(0,0,0,.16);
  padding:11mm 13mm 16mm;position:relative}

@media print{
  @page{size:A4;margin:11mm 13mm 16mm}
  html,body{height:auto;overflow:visible;background:#fff}
  .no-print{display:none!important}
  .layout{display:block;overflow:visible}
  .pane{overflow:visible;height:auto}
  .preview-pane{padding:0;display:block}
  .paper{width:auto;min-height:0;box-shadow:none;padding:0;margin:0}
}
@media(max-width:900px){
  .layout{grid-template-columns:1fr;overflow-y:auto}
  .paper{width:100%;min-height:0;padding:14px}
  .preview-pane{padding:10px}
}