:root{
  --navy:#0e2f4d;
  --navy-2:#16466f;
  --gold:#c9a14a;
  --gold-soft:#e9d9a8;
  --bg:#f4f6f9;
  --panel:#ffffff;
  --line:#e3e8ef;
  --text:#1f2a37;
  --muted:#6b7785;
  --red:#d93636;     /* 跌/到期 红 */
  --green:#1f9d55;   /* 涨/有效 绿 */
  --amber:#d98a00;
  --shadow:0 6px 24px rgba(14,47,77,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;
}
/* ===== Top bar ===== */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  background:linear-gradient(120deg,var(--navy),var(--navy-2));
  color:#fff;padding:12px 22px;box-shadow:var(--shadow);position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:12px}
.logo{font-size:22px;font-weight:800;letter-spacing:.5px;color:var(--gold-soft)}
.logo sup{font-size:11px;color:var(--gold)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15px}
.brand-text small{font-size:11px;color:#c5d4e3}
.tabs{display:flex;gap:6px}
.tab{
  background:transparent;border:1px solid transparent;color:#cfe0f0;
  padding:8px 16px;border-radius:8px;cursor:pointer;font-size:14px;transition:.15s;
}
.tab:hover{background:rgba(255,255,255,.08);color:#fff}
.tab.active{background:#fff;color:var(--navy);font-weight:600}

.topbar-right{display:flex;align-items:center;gap:16px}
.mode-switch{display:flex;background:rgba(255,255,255,.12);border-radius:9px;padding:3px;flex-shrink:0}
.tab-mode{
  border:none;background:transparent;color:#cfe0f0;font-size:13px;
  padding:6px 14px;border-radius:7px;cursor:pointer;transition:.15s;font-weight:600;white-space:nowrap;
}
.tab-mode.active{background:#fff;color:var(--navy)}

main{padding:20px;max-width:1320px;margin:0 auto}
.view{display:none}
.view.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ===== Split layout ===== */
.split{display:grid;grid-template-columns:minmax(380px,1fr) minmax(420px,1.05fr);gap:20px;align-items:start}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.panel h2{margin:0 0 14px;font-size:17px;color:var(--navy)}
.panel h3{margin:0;font-size:14px;color:var(--navy)}

/* ===== Form ===== */
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:flex;flex-direction:column;font-size:12px;color:var(--muted);gap:4px}
label.full{grid-column:1/-1}
input,select{
  font:inherit;padding:9px 10px;border:1px solid var(--line);border-radius:8px;
  background:#fbfcfe;color:var(--text);outline:none;transition:.15s;
}
input:focus,select:focus{border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(22,70,111,.12)}
.products-head{display:flex;justify-content:space-between;align-items:center;margin:18px 0 10px}
.products-head small{color:var(--muted);font-weight:400}
.product-list{display:flex;flex-direction:column;gap:10px}
.product-card{border:1px solid var(--line);border-radius:10px;padding:28px 10px 10px;background:#fbfdff;position:relative}
.product-card .pc-table{display:grid;grid-template-columns:1fr 1fr 1fr 0.9fr 1fr 0.8fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.product-card .pc-cell{padding:8px 10px;border-right:1px solid var(--line);background:#fff;display:flex;flex-direction:column;min-width:0}
.product-card .pc-cell:last-child{border-right:none}
.product-card .pc-lbl{display:block;font-size:11px;color:var(--muted);font-weight:600;margin-bottom:2px;line-height:1.2}
.product-card .pc-cell input{border:none;background:transparent;padding:2px 0;font-size:13px;color:var(--text);outline:none;box-shadow:none;width:100%}
.product-card .pc-cell input:focus{color:var(--navy)}
.product-card .pc-cell input::placeholder{color:#bbb;font-size:12px}
.pc-del{position:absolute;top:8px;right:10px;color:var(--red);cursor:pointer;font-size:12px;border:none;background:none}
.form-actions{display:flex;gap:10px;margin-top:18px}
.form-actions .btn{flex:1}

/* ===== Buttons ===== */
.btn{border:none;border-radius:9px;padding:10px 16px;font-size:14px;cursor:pointer;transition:.15s;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.btn.primary{background:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-2)}
.btn.ghost{background:#eef2f7;color:var(--navy)}
.btn.ghost:hover{background:#e2e9f2}
.btn.danger{background:#fdeaea;color:var(--red)}
.btn.danger:hover{background:#f9d6d6}
.btn.sm{padding:7px 12px;font-size:13px}
.btn.file-btn{cursor:pointer;display:inline-flex;align-items:center}

/* ===== Preview ===== */
.preview-panel{position:sticky;top:84px}
.preview-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.preview-toolbar>span{font-weight:600;color:var(--navy)}
.card-scroll{max-height:74vh;overflow:auto;border:1px solid var(--line);border-radius:12px;background:#eef1f5;padding:14px}

/* ===== Warranty Card ===== */
.warranty-card{
  background:#fff;width:680px;max-width:100%;margin:0 auto;padding:0 0 22px;
  border-radius:10px;box-shadow:0 4px 18px rgba(0,0,0,.12);font-size:13px;color:#222;overflow:hidden;
}
.wc-header{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:18px 26px;text-align:center}
.wc-header .wc-logo{font-size:22px;font-weight:800;letter-spacing:1px}
.wc-header .wc-logo sup{font-size:11px}
.wc-header .wc-title{font-size:16px;margin-top:4px;font-weight:600;letter-spacing:.5px}
.wc-header .wc-sub{font-size:11px;color:#cfe0f0;margin-top:6px}
.wc-intro{text-align:center;color:#555;padding:12px 26px 4px;font-size:12.5px}
.wc-section{padding:6px 26px}
.wc-section h4{margin:12px 0 6px;font-size:13.5px;color:var(--navy);border-left:4px solid var(--gold);padding-left:8px}
.wc-list{margin:0;padding-left:4px;font-size:12px;color:#444;line-height:1.7}
.wc-list li{margin-bottom:2px;list-style:none;padding-left:16px;position:relative}
.wc-list li:before{content:"•";color:var(--gold);position:absolute;left:2px;font-weight:700}

.wc-info{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:8px 0}
.wc-info .cell{border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:7px 10px;display:flex;gap:6px}
.wc-info .cell:nth-child(2n){border-right:none}
.wc-info .cell.full{grid-column:1/-1;border-right:none}
.wc-info .k{color:var(--muted);font-size:11.5px;white-space:nowrap}
.wc-info .v{font-weight:600;color:#1a1a1a;word-break:break-all}

.wc-ptable{width:100%;border-collapse:collapse;margin-top:6px;font-size:11.5px}
.wc-ptable th,.wc-ptable td{border:1px solid var(--line);padding:6px 8px;text-align:center}
.wc-ptable th{background:#f3f6fa;color:var(--navy);font-weight:600}
.wc-ptable td{color:#333}

.wc-footer{border-top:1px dashed var(--line);margin:14px 26px 0;padding-top:12px;font-size:11px;color:#777;display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px}
.wc-footer .wc-no{font-weight:700;color:var(--navy)}
.wc-qr{width:84px;height:84px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:6px;overflow:hidden}
.wc-qr img{width:100%;height:100%;display:block;object-fit:contain}

/* ===== Stats ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat .num{font-size:28px;font-weight:800;color:var(--navy)}
.stat .lbl{font-size:12px;color:var(--muted);margin-top:2px}
.stat.expired .num{color:var(--red)}
.stat.soon30 .num{color:var(--amber)}
.stat.soon90 .num{color:#b07a00}
.stat.valid .num{color:var(--green)}
.stat .bar{position:absolute;left:0;top:0;height:4px;width:100%}

/* ===== Manage ===== */
.manage-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:10px}
.manage-tools{display:flex;gap:10px}
.manage-tools input,.manage-tools select{padding:8px 10px}
.table-wrap{overflow-x:auto}
table{width:auto;min-width:100%;border-collapse:collapse;font-size:13px}
thead th{background:#f3f6fa;color:var(--navy);text-align:left;padding:10px;position:sticky;top:0;border-bottom:2px solid var(--line);white-space:nowrap}
tbody td{padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody td:last-child{white-space:normal;min-width:170px}
.row-btn{display:inline-block;margin:2px}
tbody tr:hover{background:#f9fbfd}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:600}
.tag.expired{background:#fdeaea;color:var(--red)}
.tag.soon30{background:#fff3e0;color:var(--amber)}
.tag.soon90{background:#fff8e1;color:#b07a00}
.tag.valid{background:#e7f6ee;color:var(--green)}
.row-btn{background:none;border:1px solid var(--line);border-radius:7px;padding:4px 9px;cursor:pointer;font-size:12px;color:var(--navy);margin-right:4px}
.row-btn:hover{background:#eef2f7}
.row-btn.danger{color:var(--red);border-color:#f3cccc}
.empty-hint{color:var(--muted);text-align:center;padding:24px;font-size:13px}

/* ===== Data ===== */
.data-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.hint{color:var(--muted);font-size:13px}

/* ===== Modal ===== */
.modal{position:fixed;inset:0;background:rgba(10,20,35,.55);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal.hidden{display:none}
.modal-box{background:#fff;border-radius:14px;max-width:760px;width:100%;max-height:92vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-box.wide{max-width:680px}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;color:var(--navy)}
.modal-close{border:none;background:none;font-size:18px;cursor:pointer;color:var(--muted)}
.modal-body{padding:18px 20px;overflow:auto}
.modal-foot{padding:12px 20px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}
.maint-add{display:grid;grid-template-columns:130px 120px 1fr auto;gap:8px;margin-bottom:14px}
.maint-add input,.maint-add select{padding:8px}
.maint-table{width:100%;border-collapse:collapse}
.maint-table th,.maint-table td{border-bottom:1px solid var(--line);padding:8px;text-align:left;font-size:13px}

/* ===== Query (customer) ===== */
.query-panel{max-width:760px;margin:0 auto}
.query-form{display:flex;gap:10px;margin:6px 0 4px}
.query-form input{flex:1}
.query-status{display:flex;gap:10px;align-items:center;margin:14px 0 12px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.query-status .tag{font-size:12px}
.query-card{margin:0 auto;max-width:680px}
.query-empty{text-align:center;color:var(--muted);padding:34px 16px;font-size:14px;background:#fbfcfe;border:1px dashed var(--line);border-radius:12px}

/* ===== Print ===== */
@media print{
  body *{visibility:hidden}
  #print-area,#print-area *{visibility:visible}
  #print-area{position:absolute;left:0;top:0;width:100%}
  .modal{display:none !important}
  @page{margin:10mm}
}
@media(max-width:980px){
  .topbar{flex-wrap:wrap;gap:10px}
  .topbar-right{flex-direction:row;align-items:center;gap:8px;width:auto;overflow-x:auto;flex-wrap:nowrap}
  .topbar-right .tabs{flex-shrink:0}
  .topbar-right #role-badge,#topbar-right #logout-link{flex-shrink:0}
  .mode-switch{align-self:flex-end}
  .split{grid-template-columns:1fr}
  .preview-panel{position:static}
  .stats-row{grid-template-columns:1fr 1fr}
  .field-grid{grid-template-columns:1fr}
  .product-card .pc-table{grid-template-columns:1fr 1fr 1fr}
  .product-card .pc-cell:nth-child(3n){border-right:none}
  .product-card .pc-cell:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .query-form{flex-direction:column}
}