/* 基础布局复用其它工具的视觉风格 */
:root{
  --bg:#0f172a;       /* slate-900 */
  --card:#111827;     /* gray-900 */
  --card-2:#0b1224;   /* deep card */
  --text:#e5e7eb;     /* gray-200 */
  --muted:#9ca3af;    /* gray-400 */
  --primary:#22d3ee;  /* cyan-400 */
  --accent:#a78bfa;   /* violet-400 */
  --danger:#f87171;   /* red-400 */
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);background:linear-gradient(120deg,#0b1020,#0f172a 30%,#0b1224);
}
.container{max-width:1100px;margin:0 auto;padding:24px}
.page-header{margin-bottom:16px}
.page-header h1{margin:0 0 6px 0;font-size:28px}
.subtitle{margin:0;color:var(--muted)}
.panel{background:rgba(17,24,39,.65);border:1px solid rgba(148,163,184,.15);border-radius:12px;padding:18px;margin:16px 0;backdrop-filter:blur(6px)}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.form-grid.single{grid-template-columns:1fr}
.form-item label{display:block;margin-bottom:6px;color:#cbd5e1}
.form-item input[type="number"],
.form-item input[type="date"],
.form-item select,
textarea{width:100%;padding:10px 12px;background:#0b1224;border:1px solid rgba(148,163,184,.2);color:var(--text);border-radius:8px;outline:none}
textarea{resize:vertical}
.inline{display:flex;gap:8px;align-items:center}
.sep{color:var(--muted)}
.controls{display:flex;gap:10px;align-items:center;margin-top:10px}
.btn{background:#1f2937;color:#e5e7eb;border:1px solid rgba(148,163,184,.25);padding:8px 14px;border-radius:8px;cursor:pointer}
.btn:hover{background:#111827}
.btn-primary{background:var(--primary);color:#001b1f;border:none}
.btn-primary:hover{filter:brightness(.9)}
.table{width:100%;border-collapse:collapse;color:var(--text);font-size:14px}
.table th,.table td{border-bottom:1px solid rgba(148,163,184,.2);padding:8px 6px;text-align:left}
.table th{color:#cbd5e1;font-weight:600}
.result-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:12px}
.card{background:#0b1224;border:1px solid rgba(148,163,184,.2);border-radius:10px;padding:12px}
.card.primary{background:linear-gradient(135deg,rgba(34,211,238,.15),rgba(167,139,250,.12))}
.label{font-size:12px;color:var(--muted)}
.value{font-size:20px;margin-top:4px}
.note{color:var(--muted);font-size:12px;margin-top:8px}
.page-footer{color:var(--muted);margin-top:24px;text-align:center}
@media (max-width: 900px){
  .form-grid{grid-template-columns:1fr 1fr}
  .result-cards{grid-template-columns:1fr 1fr}
}
@media (max-width: 600px){
  .form-grid{grid-template-columns:1fr}
  .result-cards{grid-template-columns:1fr}
}