/* GCTEC 品牌视觉规范：主色 #0055A1 / 深底 #0F1B2D / 强调橙 #E8590C / 浅底 #EEF3F7 */
:root{
  --brand:#0055A1; --brand-dark:#0F1B2D; --accent:#E8590C; --bg:#EEF3F7;
  --card:#FFFFFF; --line:#D6E0EA; --text:#1B2733; --muted:#6B7A8C;
  --ok:#1B8A4B; --warn:#C98200; --bad:#C62828;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:"Microsoft YaHei","微软雅黑",-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;
  background:var(--bg); color:var(--text); font-size:15px; line-height:1.6;
  padding-bottom:76px;
}
.num,.code,code,.mono{font-family:Arial,Helvetica,sans-serif}
a{color:var(--brand);text-decoration:none}

/* 顶栏 */
header{background:var(--brand-dark);color:#fff;padding:14px 16px;position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:10px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
header .logo{width:30px;height:30px;border-radius:6px;background:var(--brand);display:flex;align-items:center;
  justify-content:center;font-weight:700;font-family:Arial;font-size:13px;flex:none}
header h1{font-size:16px;margin:0;font-weight:600;flex:1;letter-spacing:.5px}
header .sub{font-size:11px;color:#9FB3C8;font-weight:400}
.badge-v{background:var(--accent);color:#fff;font-size:11px;padding:2px 7px;border-radius:10px;font-family:Arial}

/* 底部导航 */
nav.tabs{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);
  display:flex;z-index:40;box-shadow:0 -2px 10px rgba(0,0,0,.06)}
nav.tabs a{flex:1;text-align:center;padding:9px 0 8px;color:var(--muted);font-size:12px;min-height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px}
nav.tabs a .ic{font-size:19px;line-height:1}
nav.tabs a.on{color:var(--brand);font-weight:600;background:#F2F7FB}

.wrap{padding:14px;max-width:1100px;margin:0 auto}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:12px;
  box-shadow:0 1px 3px rgba(15,27,45,.05)}
.card h2{font-size:15px;margin:0 0 10px;padding-left:9px;border-left:4px solid var(--brand);line-height:1.2}
.card h3{font-size:14px;margin:12px 0 8px;color:var(--brand)}
.muted{color:var(--muted);font-size:13px}
.tiny{font-size:12px;color:var(--muted)}

/* 按钮：≥44px */
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 16px;border-radius:8px;border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-family:inherit;cursor:pointer}
button:active{transform:translateY(1px)}
.btn.ghost{background:#fff;color:var(--brand)}
.btn.warn{background:var(--accent);border-color:var(--accent)}
.btn.gray{background:#8A97A6;border-color:#8A97A6}
.btn.big{width:100%;min-height:52px;font-size:17px;font-weight:600}
.btn[disabled]{opacity:.45;pointer-events:none}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}
.btn-row .btn{flex:1;min-width:120px}

input,select,textarea{width:100%;min-height:44px;padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;font-size:15px;font-family:inherit;background:#fff;color:var(--text)}
textarea{min-height:70px}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
.field{margin-bottom:8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.grid2{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#F5F8FB;color:var(--brand);font-weight:600;white-space:nowrap}
td.code,th.code{font-family:Arial,sans-serif}

.pill{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;line-height:1.7;white-space:nowrap}
.pill.ok{background:#E6F4EC;color:var(--ok)}
.pill.warn{background:#FDF3E0;color:var(--warn)}
.pill.bad{background:#FBE9E9;color:var(--bad)}
.pill.gray{background:#EDF1F5;color:var(--muted)}
.pill.blue{background:#E7F0F9;color:var(--brand)}

/* 红绿灯 */
.light{display:flex;align-items:center;gap:10px;background:var(--brand-dark);color:#fff;
  border-radius:10px;padding:14px;margin-bottom:12px}
.light .dot{width:26px;height:26px;border-radius:50%;flex:none;box-shadow:0 0 0 4px rgba(255,255,255,.15)}
.dot.red{background:#E53935}.dot.yellow{background:#FDD835}.dot.green{background:#43A047}
.light .t{font-size:16px;font-weight:600}
.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}
@media(max-width:640px){.kpi{grid-template-columns:repeat(2,1fr)}}
.kpi div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center}
.kpi b{display:block;font-size:22px;font-family:Arial;color:var(--brand);line-height:1.3}
.kpi span{font-size:12px;color:var(--muted)}

.step{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line)}
.step .n{flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;
  font-size:13px;font-family:Arial;display:flex;align-items:center;justify-content:center}
.step .n.bad{background:var(--bad)} .step .n.warn{background:var(--warn)}
.step .b{flex:1;min-width:0}
.step .t{font-weight:600;font-size:14px}
.step .d{font-size:12.5px;color:var(--muted);word-break:break-all}

/* 扫码 */
.scanner{position:fixed;inset:0;background:#000;z-index:100;display:none}
.scanner video{width:100%;height:100%;object-fit:cover}
.scanner .bar{position:absolute;left:0;right:0;top:0;padding:12px;display:flex;gap:10px;align-items:center}
.scanner .frame{position:absolute;left:8%;right:8%;top:26%;bottom:34%;border:2px solid var(--accent);border-radius:12px}
.scanner .tip{position:absolute;left:0;right:0;bottom:60px;text-align:center;color:#fff;font-size:14px}

.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:88px;background:rgba(15,27,45,.94);
  color:#fff;padding:11px 18px;border-radius:8px;z-index:200;font-size:14px;max-width:90%;display:none;text-align:center}
.offline{background:var(--accent);color:#fff;text-align:center;font-size:12.5px;padding:5px;display:none}
.qrbox{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px;display:inline-block}
label.lbl-item{display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px;margin:0}