/* ============================================================
   SPA 外壳（前后端分离版）——沿用 app.css 的品牌变量
   PC 优先，移动端自适应；所有类名以 wc- 前缀，避免与旧样式冲突
   ============================================================ */
:root{--wc-max:1160px}
body{background:#F4F6F8}
#app{min-height:100vh;display:flex;flex-direction:column}

/* ---------- 顶栏 ---------- */
.wc-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--ink-200)}
.wc-head-in{max-width:var(--wc-max);margin:auto;height:62px;padding:0 22px;
  display:flex;align-items:center;gap:28px}
.wc-brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);
  font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.wc-brand img{width:30px;height:30px;object-fit:contain;border-radius:8px}
.wc-nav{display:flex;align-items:center;gap:4px;flex:1}
.wc-nav a{padding:8px 13px;border-radius:9px;color:var(--ink-600);font-size:14px;font-weight:500}
.wc-nav a:hover{background:var(--ink-100);color:var(--brand-600)}
.wc-nav a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.wc-head-right{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-600)}
.wc-head-right .who{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wc-menu-btn{display:none;border:0;background:transparent;font-size:22px;cursor:pointer;color:var(--ink-700)}

/* ---------- 主体 ---------- */
.wc-main{flex:1;width:100%;max-width:var(--wc-max);margin:0 auto;padding:28px 22px 56px}
.wc-foot{text-align:center;padding:20px;color:var(--ink-400);font-size:12px;
  border-top:1px solid var(--ink-200);background:#fff}
.wc-loading{text-align:center;padding:80px 0;color:var(--ink-400)}
.wc-narrow{max-width:520px;margin:0 auto}
.wc-mid{max-width:820px;margin:0 auto}

/* ---------- 通用块 ---------- */
.wc-page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.wc-page-head h1{font-size:24px;font-weight:700;letter-spacing:-.3px}
.wc-page-head p{margin:6px 0 0;color:var(--ink-500);font-size:13px}
.wc-card{background:#fff;border:1px solid var(--ink-200);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:22px;margin-bottom:18px}
.wc-card h2{font-size:16px;font-weight:650;margin:0 0 16px;display:flex;align-items:center;gap:8px}
.wc-card h2 .num{width:22px;height:22px;border-radius:7px;background:var(--brand-50);
  color:var(--brand-600);font-size:12px;display:inline-flex;align-items:center;justify-content:center}
.wc-grid{display:grid;gap:16px}
.wc-grid.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.wc-grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.wc-grid.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.wc-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.wc-spacer{flex:1}
.wc-muted{color:var(--ink-500)}
.wc-tiny{font-size:12px}
.wc-mono{font-family:var(--mono);font-size:12px}
.wc-strong{font-weight:650;color:var(--ink-900)}
.wc-money{color:var(--brand-600);font-weight:700;font-variant-numeric:tabular-nums}
.wc-divider{height:1px;background:var(--ink-150);margin:18px 0}
.wc-empty{text-align:center;padding:48px 20px;color:var(--ink-400)}
.wc-empty .big{font-size:34px;margin-bottom:10px;opacity:.5}

/* ---------- 表单 ---------- */
.wc-field{display:block;margin-bottom:14px}
.wc-field > span{display:block;font-size:13px;font-weight:550;color:var(--ink-700);margin-bottom:6px}
.wc-field .hint{font-weight:400;color:var(--ink-400);font-size:12px;margin-left:6px}
.wc-input,.wc-select,.wc-textarea{width:100%;padding:10px 12px;border:1px solid var(--ink-300);
  border-radius:9px;background:#fff;color:var(--ink-900);outline:none;transition:.15s}
.wc-input:focus,.wc-select:focus,.wc-textarea:focus{border-color:var(--brand-400);
  box-shadow:0 0 0 3px var(--brand-100)}
.wc-textarea{min-height:78px;resize:vertical}
.wc-input:disabled,.wc-select:disabled{background:var(--ink-100);color:var(--ink-500)}
.wc-check{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--ink-700);
  cursor:pointer;line-height:1.5}
.wc-check input{margin-top:3px;accent-color:var(--brand-600);width:15px;height:15px}
.wc-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 17px;border:1px solid transparent;border-radius:9px;font-size:14px;
  font-weight:600;cursor:pointer;transition:.15s;white-space:nowrap}
.wc-btn.primary{background:var(--brand-500);color:#fff}
.wc-btn.primary:hover{background:var(--brand-600)}
.wc-btn.ghost{background:#fff;border-color:var(--ink-300);color:var(--ink-700)}
.wc-btn.ghost:hover{background:var(--ink-50);border-color:var(--ink-400)}
.wc-btn.soft{background:var(--brand-50);color:var(--brand-600)}
.wc-btn.soft:hover{background:var(--brand-100)}
.wc-btn.danger{background:var(--err-50);color:var(--err-700)}
.wc-btn.sm{padding:6px 11px;font-size:12.5px;border-radius:8px}
.wc-btn.lg{padding:12px 24px;font-size:15px}
.wc-btn.block{width:100%}
.wc-btn:disabled{opacity:.5;cursor:not-allowed}
.wc-btnbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

/* ---------- 统计卡 ---------- */
.wc-stat{background:#fff;border:1px solid var(--ink-200);border-radius:var(--r-lg);
  padding:18px 20px;box-shadow:var(--sh-sm)}
.wc-stat .label{font-size:12.5px;color:var(--ink-500);margin-bottom:8px}
.wc-stat .value{font-size:26px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
.wc-stat .sub{font-size:12px;color:var(--ink-400);margin-top:6px}

/* ---------- 徽标 ---------- */
.wc-tag{display:inline-flex;align-items:center;padding:3px 9px;border-radius:20px;
  font-size:12px;font-weight:600;white-space:nowrap}
.wc-tag.gray{background:var(--ink-100);color:var(--ink-600)}
.wc-tag.brand{background:var(--brand-50);color:var(--brand-600)}
.wc-tag.ok{background:var(--ok-50);color:var(--ok-700)}
.wc-tag.warn{background:var(--warn-50);color:var(--warn-700)}
.wc-tag.info{background:var(--info-50);color:var(--info-700)}
.wc-tag.err{background:var(--err-50);color:var(--err-700)}

/* ---------- 表格 ---------- */
.wc-table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--ink-200);
  border-radius:var(--r-lg)}
.wc-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px}
.wc-table th{text-align:left;padding:12px 14px;background:var(--ink-50);
  color:var(--ink-600);font-weight:600;font-size:12.5px;border-bottom:1px solid var(--ink-200);white-space:nowrap}
.wc-table td{padding:12px 14px;border-bottom:1px solid var(--ink-150);vertical-align:middle}
.wc-table tr:last-child td{border-bottom:0}
.wc-table tbody tr:hover{background:var(--ink-50)}
.wc-table .acts{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- 列表项 ---------- */
.wc-list-item{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--ink-150)}
.wc-list-item:last-child{border-bottom:0}
.wc-list-item .body{flex:1;min-width:0}
.wc-list-item .t{font-weight:600;font-size:14px;color:var(--ink-900)}
.wc-list-item .d{font-size:12.5px;color:var(--ink-500);margin-top:4px}

/* ---------- 标签页 ---------- */
.wc-tabs{display:flex;gap:6px;border-bottom:1px solid var(--ink-200);margin-bottom:18px;overflow-x:auto}
.wc-tabs button{border:0;background:transparent;padding:10px 16px;font-size:14px;
  color:var(--ink-500);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.wc-tabs button.active{color:var(--brand-600);border-bottom-color:var(--brand-500);font-weight:600}

/* ---------- 商品行 ---------- */
.wc-item{border:1px solid var(--ink-200);border-radius:12px;padding:14px;margin-bottom:12px;background:var(--ink-50)}
.wc-item .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;
  font-size:13px;font-weight:600;color:var(--ink-700)}
.wc-item .del{border:0;background:transparent;color:var(--err-500);cursor:pointer;font-size:12px}
.wc-item .g{display:grid;grid-template-columns:1fr 160px;gap:10px}
.wc-item .shot{font-size:12px;color:var(--ok-600);margin-top:7px}
.wc-quote{background:var(--brand-50);border:1px solid var(--brand-100);border-radius:12px;
  padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.wc-quote .lines{font-size:12.5px;color:var(--ink-600);line-height:1.7}

/* ---------- 支付 / 二维码 ---------- */
.wc-pay-opt{display:flex;align-items:center;gap:12px;border:1px solid var(--ink-200);
  border-radius:12px;padding:14px;cursor:pointer;margin-bottom:10px;transition:.15s}
.wc-pay-opt:hover{border-color:var(--brand-300)}
.wc-pay-opt.sel{border-color:var(--brand-500);background:var(--brand-50)}
.wc-pay-opt input{accent-color:var(--brand-600)}
.wc-qr{width:248px;height:248px;margin:6px auto;background:#fff;padding:10px;
  border:1px solid var(--ink-200);border-radius:12px;display:block}
.wc-qr svg{width:100%;height:100%}
.wc-count{font-size:32px;font-weight:700;text-align:center;font-variant-numeric:tabular-nums;
  color:var(--brand-600);letter-spacing:1px}
.wc-count.is-danger{color:var(--err-500)}

/* ---------- 合同 ---------- */
.wc-contract{background:#fff;border:1px solid var(--ink-200);border-radius:12px;
  padding:28px 32px;line-height:1.9;font-size:14px;color:var(--ink-800)}
.wc-contract h3{text-align:center;font-size:19px;margin-bottom:6px}
.wc-contract h4{font-size:14.5px;margin:20px 0 6px;color:var(--ink-900)}
.wc-contract p{margin:0 0 8px}
.wc-scroll{max-height:380px;overflow-y:auto}
.wc-signpad{border:1px dashed var(--ink-300);border-radius:12px;background:#fff;
  width:100%;height:180px;touch-action:none;cursor:crosshair;display:block}

/* ---------- 弹层 ---------- */
.wc-toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);
  background:var(--ink-900);color:#fff;padding:11px 20px;border-radius:10px;
  font-size:13.5px;box-shadow:var(--sh-lg);opacity:0;pointer-events:none;
  transition:.25s;z-index:200;max-width:min(90vw,520px);text-align:center}
.wc-toast.show{opacity:1;transform:translate(-50%,0)}
.wc-toast.error{background:var(--err-700)}
.wc-toast.ok{background:var(--ok-700)}
.wc-back{display:inline-flex;align-items:center;gap:5px;color:var(--ink-500);
  font-size:13px;margin-bottom:14px;cursor:pointer}
.wc-back:hover{color:var(--brand-600)}
.wc-kv{display:grid;grid-template-columns:120px 1fr;gap:9px 14px;font-size:13.5px;line-height:1.6}
.wc-kv dt{color:var(--ink-500)}
.wc-kv dd{margin:0;color:var(--ink-900);word-break:break-all}
.wc-timeline{border-left:2px solid var(--ink-200);margin-left:7px;padding-left:18px}
.wc-timeline .step{position:relative;padding-bottom:16px;font-size:13px}
.wc-timeline .step::before{content:'';position:absolute;left:-25px;top:4px;width:10px;height:10px;
  border-radius:50%;background:var(--ink-300);border:2px solid #fff}
.wc-timeline .step.on::before{background:var(--brand-500)}
.wc-timeline .step .t{font-weight:600}
.wc-timeline .step .d{font-size:12px;color:var(--ink-400);margin-top:2px}

/* ---------- 后台 ---------- */
.wc-admin{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start}
.wc-side{background:#fff;border:1px solid var(--ink-200);border-radius:var(--r-lg);
  padding:10px;position:sticky;top:86px}
.wc-side a{display:block;padding:10px 13px;border-radius:9px;color:var(--ink-600);font-size:13.5px}
.wc-side a:hover{background:var(--ink-50)}
.wc-side a.active{background:var(--brand-50);color:var(--brand-600);font-weight:650}
.wc-admin-body{min-width:0}
.wc-filter{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.wc-filter .wc-input,.wc-filter .wc-select{width:auto;min-width:140px}
.wc-settings-group{margin-bottom:22px}
.wc-settings-group h3{font-size:13px;color:var(--brand-600);margin:0 0 12px;
  padding-bottom:8px;border-bottom:1px solid var(--ink-150)}
.wc-settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .wc-grid.g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .wc-grid.g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .wc-admin{grid-template-columns:1fr}
  .wc-side{position:static;display:flex;gap:4px;overflow-x:auto;padding:8px}
  .wc-side a{white-space:nowrap}
}
@media(max-width:640px){
  .wc-head-in{height:54px;padding:0 14px;gap:10px}
  .wc-brand span{font-size:15px}
  .wc-nav{position:fixed;top:54px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:8px 14px 14px;border-bottom:1px solid var(--ink-200);
    box-shadow:var(--sh-md);display:none}
  .wc-nav.open{display:flex}
  .wc-nav a{padding:11px 12px}
  .wc-menu-btn{display:block}
  .wc-head-right{display:none}
  .wc-main{padding:18px 14px 40px}
  .wc-page-head h1{font-size:20px}
  .wc-grid.g2,.wc-grid.g3,.wc-grid.g4,.wc-settings-grid{grid-template-columns:1fr}
  .wc-card{padding:16px}
  .wc-item .g{grid-template-columns:1fr}
  .wc-contract{padding:18px}
  .wc-kv{grid-template-columns:92px 1fr}
  .wc-qr{width:210px;height:210px}
}