/* 零售小程序后台 - 白灰风格，无图标，移动端适配 */
:root{
  --bg:#f4f5f7;
  --card:#ffffff;
  --border:#e3e6eb;
  --text:#1f2329;
  --text-2:#5b6470;
  --text-3:#8a929c;
  --primary:#2b6cb0;
  --primary-h:#2569b8;
  --danger:#c53030;
  --danger-h:#b02a2a;
  --ok:#2e7d32;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.06);
}
*{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;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:600}
button{font-family:inherit;cursor:pointer}

/* 布局 */
.layout{display:flex;min-height:100vh}
.sidebar{
  width:200px;background:#fff;border-right:1px solid var(--border);
  flex-shrink:0;padding:0;position:sticky;top:0;height:100vh;overflow:auto;
}
.sidebar .brand{
  padding:18px 18px;font-weight:700;font-size:16px;border-bottom:1px solid var(--border);
  color:#1f2329;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.sidebar .nav-item{
  display:block;padding:12px 20px;color:var(--text-2);border-left:3px solid transparent;
}
.sidebar .nav-item:hover{background:#f6f7f9;text-decoration:none;color:var(--text)}
.sidebar .nav-item.active{background:#f0f5fb;color:var(--primary);border-left-color:var(--primary)}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  height:52px;background:#fff;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:10;
}
.topbar .title{font-size:15px;font-weight:600}
.topbar .user{color:var(--text-2)}
.content{padding:18px;flex:1}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--border);border-radius:6px;box-shadow:var(--shadow)}
.card+.card{margin-top:14px}
.card-body{padding:16px}
.card-h{padding:12px 16px;border-bottom:1px solid var(--border);font-weight:600;display:flex;justify-content:space-between;align-items:center}

/* 统计 */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:#fff;border:1px solid var(--border);border-radius:6px;padding:16px;box-shadow:var(--shadow)}
.stat .num{font-size:24px;font-weight:700;color:var(--text)}
.stat .lbl{color:var(--text-3);font-size:13px;margin-top:4px}

/* 工具栏（搜索+按钮） */
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar .spacer{flex:1}
.input,.select,textarea{
  border:1px solid var(--border);border-radius:4px;padding:8px 10px;background:#fff;color:var(--text);
  font-size:14px;outline:none;width:100%;
}
.input:focus,.select:focus,textarea:focus{border-color:var(--primary)}
.input.search-input{width:240px}
textarea{min-height:80px;resize:vertical}
.label{display:block;color:var(--text-2);margin-bottom:6px;font-size:13px}
.field{margin-bottom:14px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* 按钮 */
.btn{
  border:1px solid var(--border);background:#fff;color:var(--text);
  padding:8px 14px;border-radius:4px;font-size:14px;line-height:1;
}
.btn:hover{background:#f4f5f7}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-h)}
.btn-danger{background:#fff;color:var(--danger);border-color:#e6c3c3}
.btn-danger:hover{background:#fbeeee}
.btn-sm{padding:5px 10px;font-size:13px}
.btn-link{background:none;border:none;color:var(--primary);padding:2px 6px}
.btn-link.danger{color:var(--danger)}

/* 表格 */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th,.table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:middle}
.table th{background:#fafbfc;color:var(--text-2);font-weight:600;white-space:nowrap}
.table tr:hover td{background:#fafbfc}
.table .ops{white-space:nowrap;text-align:right}
.thumb{width:44px;height:44px;object-fit:cover;border-radius:4px;border:1px solid var(--border);vertical-align:middle}
.tag{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;border:1px solid var(--border);background:#f4f5f7;color:var(--text-2)}
.tag.ok{color:var(--ok);border-color:#cfe6d0;background:#f0f9f0}
.tag.warn{color:#b8860b;border-color:#f0d9a0;background:#fff8e8}
.tag.off{color:var(--text-3);background:#f4f5f7}
.muted{color:var(--text-3)}

/* 分页 */
.pagination{display:flex;gap:6px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.pagination .btn{min-width:34px;text-align:center}

/* 统计卡片（横向布局） */
.stats-row{display:flex;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.stat-card{flex:1;min-width:120px;background:#fff;border:1px solid var(--border);border-radius:6px;padding:16px;box-shadow:var(--shadow)}
.stat-num{font-size:24px;font-weight:700;color:var(--text)}
.stat-label{color:var(--text-3);font-size:13px;margin-top:4px}
.stat-primary .stat-num{color:#1890ff}
.stat-warning .stat-num{color:#b8860b}
.stat-info .stat-num{color:#1890ff}
.stat-success .stat-num{color:#07c160}
.stat-danger .stat-num{color:#e74c3c}

/* 弹窗 */
.mask{position:fixed;inset:0;background:rgba(15,23,36,.45);display:none;z-index:50;align-items:center;justify-content:center;padding:16px}
.mask.show{display:flex}
.mask .modal{background:#fff;border-radius:8px;width:560px;max-width:100%;max-height:90vh;overflow:auto;box-shadow:0 10px 40px rgba(0,0,0,.18)}
.mask .modal-h{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-weight:600}
.mask .modal-h .close{background:none;border:none;font-size:20px;color:var(--text-3);line-height:1;padding:0 4px}
.mask .modal-b{padding:18px}
.mask .modal-f{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

/* 新版弹窗样式（使用 mask-wrap 避免与旧版 .mask .modal 冲突） */
.modal-wrap{position:fixed;inset:0;z-index:50;display:none;align-items:center;justify-content:center;padding:16px}
.modal-wrap.show{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(15,23,36,.45)}
.modal-box{position:relative;background:#fff;border-radius:8px;width:560px;max-width:100%;max-height:90vh;overflow:auto;box-shadow:0 10px 40px rgba(0,0,0,.18)}
.modal-box.modal-lg{width:720px}
.modal-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-weight:600}
.modal-close{background:none;border:none;font-size:20px;color:var(--text-3);line-height:1;padding:0 4px;cursor:pointer}
.modal-body{padding:18px}
.modal-footer{padding:12px 18px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}
/* 详情网格 */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.detail-row{font-size:13px;line-height:1.8}
.detail-row span{color:var(--text-3);min-width:70px;display:inline-block}

/* Toast */
.toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);background:#1f2329;color:#fff;padding:10px 18px;border-radius:6px;z-index:100;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.show{opacity:1}
.toast.err{background:#c53030}

/* 登录页 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f4f5f7;padding:16px}
.login-card{background:#fff;border:1px solid var(--border);border-radius:8px;width:340px;max-width:100%;padding:28px;box-shadow:var(--shadow)}
.login-card h1{font-size:18px;margin-bottom:4px;text-align:center}
.login-card .sub{color:var(--text-3);text-align:center;font-size:13px;margin-bottom:20px}
.login-card .btn-primary{width:100%;padding:10px;font-size:15px}
.login-err{color:var(--danger);font-size:13px;margin-bottom:10px;display:none}
.login-err.show{display:block}

/* 空状态 */
.empty{text-align:center;padding:30px;color:var(--text-3)}

/* 响应式：移动端 */
@media (max-width:760px){
  .sidebar{position:fixed;left:0;top:0;z-index:30;transform:translateX(-100%);transition:transform .2s;width:180px}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .topbar .menu-toggle{display:inline-flex !important}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .field-row{grid-template-columns:1fr}
  .input.search-input{width:140px}
  .content{padding:12px}
  .table{display:block;overflow-x:auto;white-space:nowrap}
  .table th,.table td{padding:8px 10px}
  .modal-wrap{width:100%}
}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:4px;padding:6px 10px;margin-right:10px}
.mask-bg{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:25}
@media (max-width:760px){.mask-bg.show{display:block}}

/* ---------- 上传组件 ---------- */
.upload-box{
  border:1.5px dashed var(--border);border-radius:6px;padding:12px;
  background:#fafbfc;cursor:pointer;transition:border-color .15s;background:#fafbfc;
  text-align:center;position:relative;
}
.upload-box.dragover{border-color:var(--primary);background:#f0f5fb}
.upload-box .up-hint{color:var(--text-3);font-size:13px}
.upload-box .up-hint strong{color:var(--primary);font-weight:500}
.upload-box input[type=file]{display:none}
.upload-box .up-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;background:#e3e6eb;border-radius:0 0 6px 6px;overflow:hidden;
}
.upload-box .up-progress-bar{height:100%;background:var(--primary);transition:width .2s;width:0}
.upload-box .up-progress-text{position:absolute;right:10px;bottom:12px;font-size:12px;color:var(--text-2)}

.upload-preview{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;
}
.upload-preview .up-item{
  position:relative;width:80px;height:80px;border:1px solid var(--border);border-radius:4px;overflow:hidden;background:#f4f5f7;
}
.upload-preview .up-item img,
.upload-preview .up-item video{
  width:100%;height:100%;object-fit:cover;display:block;
}
.upload-preview .up-item .up-del{
  position:absolute;top:2px;right:2px;width:20px;height:20px;border-radius:50%;
  background:rgba(0,0,0,.6);color:#fff;border:none;font-size:12px;line-height:20px;padding:0;
  display:flex;align-items:center;justify-content:center;
}
.upload-preview .up-item .up-del:hover{background:rgba(0,0,0,.85)}
.upload-preview .up-item .up-loading{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.8);color:var(--text-3);font-size:12px;
}
.upload-preview .up-item .up-filename{
  position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.5);color:#fff;
  font-size:10px;padding:2px 4px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.upload-preview .up-item .up-replace{
  position:absolute;inset:0;display:none;align-items:center;justify-content:center;
  background:rgba(0,0,0,.55);color:#fff;font-size:12px;
}
.upload-preview .up-item:hover .up-replace{display:flex}
.upload-preview .up-item .up-replace:hover{background:rgba(0,0,0,.7)}

/* 单图上传（小） */
.upload-single{display:inline-flex;align-items:center;gap:6px}
.upload-single .up-preview{width:72px;height:72px;border:1px solid var(--border);border-radius:4px;overflow:hidden;background:#f4f5f7;flex-shrink:0}
.upload-single .up-preview img,
.upload-single .up-preview video{width:100%;height:100%;object-fit:cover}
.upload-single .up-actions{display:flex;flex-direction:column;gap:3px}
.upload-single .up-actions .btn-sm{padding:2px 6px;font-size:11px;white-space:nowrap}
.upload-single .up-preview{position:relative}
.upload-single .up-preview .up-empty{
  color:var(--text-3);font-size:10px;padding:8px;text-align:center;display:flex;align-items:center;justify-content:center;height:100%;
}