:root{
  --primary:#2563eb;
  --primary-d:#1d4ed8;
  --bg:#f4f6fb;
  --card:#fff;
  --text:#1f2937;
  --muted:#6b7280;
  --border:#e5e7eb;
  --ok:#16a34a;
  --off:#9ca3af;
}
*{box-sizing:border-box;}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;
}
a{color:var(--primary);text-decoration:none;}

/* 布局 */
.container{max-width:1080px;margin:24px auto;padding:0 16px;}
.topbar{background:var(--card);border-bottom:1px solid var(--border);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10;}
.brand{font-weight:700;font-size:16px;}
.topbar-right{display:flex;align-items:center;gap:10px;}

/* 卡片/表单 */
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px;}
h1,h2,h3{margin:0 0 14px;}
label{display:block;margin:10px 0 4px;font-size:13px;color:var(--muted);}
input,select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--text);
}
textarea{resize:vertical;}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);}

/* 按钮 */
.btn{display:inline-block;background:var(--primary);color:#fff;border:none;border-radius:8px;padding:10px 16px;font-size:14px;cursor:pointer;text-align:center;}
.btn:hover{background:var(--primary-d);}
.btn-sm{padding:6px 12px;font-size:13px;}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary);}
.btn-ghost:hover{background:#eff4ff;}
.btn:disabled{opacity:.6;cursor:not-allowed;}

.alert{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;border-radius:8px;padding:10px 12px;margin-bottom:12px;}
.muted{color:var(--muted);}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;}
.badge.ok{background:#dcfce7;color:#166534;}
.badge.off{background:#f3f4f6;color:#6b7280;}

/* Tabs */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px;}
.tab{background:#fff;border:1px solid var(--border);border-radius:8px;padding:8px 14px;cursor:pointer;font-size:14px;}
.tab.on{background:var(--primary);color:#fff;border-color:var(--primary);}
.tab-panel{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;}

/* 工具栏 */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;align-items:center;}
.toolbar input,.toolbar select{width:auto;min-width:120px;}
.export-bar{background:#f7f8fa;border:1px solid #eef0f3;border-radius:10px;padding:10px 12px;align-items:center;}
.export-bar .muted{margin-right:4px;}
.pager{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;}
.chart-box{background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px;margin-bottom:18px;overflow-x:auto;}
.chart-svg{width:100%;height:auto;display:block;}

/* 表格 */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border);white-space:nowrap;}
th{background:#f9fafb;color:var(--muted);font-weight:600;}
.rec-content{max-width:280px;white-space:normal;}

/* 概览统计 */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px;}
.stat{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;text-align:center;}
.stat-num{font-size:30px;font-weight:800;color:var(--primary);}
.stat-label{color:var(--muted);margin-top:4px;}
.bar-row{display:flex;align-items:center;gap:10px;margin:10px 0;}
.bar-name{width:110px;font-size:13px;}
.bar-track{flex:1;background:#eef2f7;border-radius:999px;height:12px;overflow:hidden;}
.bar-fill{display:block;height:100%;background:linear-gradient(90deg,#2563eb,#60a5fa);}
.bar-val{width:90px;text-align:right;font-size:13px;color:var(--muted);}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50;}
.modal-box{background:#fff;border-radius:12px;width:360px;max-width:92vw;padding:20px;}
.modal-title{font-weight:700;font-size:16px;margin-bottom:12px;}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:16px;}
.fg-title{font-weight:700;font-size:13px;color:var(--primary);margin:14px 0 4px;padding-bottom:4px;border-bottom:1px dashed var(--border);}

/* H5 评价页 */
.h5-wrap{max-width:480px;margin:0 auto;min-height:100vh;background:linear-gradient(180deg,#2563eb 0%,#2563eb 180px,#f4f6fb 180px);padding:0 16px 30px;}
.h5-head{color:#fff;padding:26px 4px 20px;text-align:center;}
.h5-logo{font-size:22px;font-weight:800;}
.h5-sub{font-size:13px;opacity:.9;margin-top:4px;}
.h5-card{background:#fff;border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(0,0,0,.08);}
.h5-target{font-size:16px;font-weight:600;text-align:center;margin-bottom:6px;}
.h5-target b{color:var(--primary);}
.h5-tip{text-align:center;color:var(--muted);font-size:13px;margin-bottom:14px;}
.h5-loading,.h5-error,.h5-success{padding:30px 10px;text-align:center;color:var(--muted);}
.h5-error{color:#b91c1c;}
.h5-success{color:var(--ok);font-size:18px;font-weight:700;}
.h5-success-sub{text-align:center;color:var(--muted);margin-top:8px;}
.rate-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border);}
.rate-label{font-size:15px;}
.stars{font-size:26px;color:#d1d5db;letter-spacing:2px;cursor:pointer;user-select:none;}
.stars .star.on{color:#f59e0b;}
.field{margin-top:16px;}
.field label{display:block;color:var(--muted);font-size:13px;margin-bottom:6px;}
.field .small{font-size:12px;line-height:1.7;margin-top:6px;}
.switch-row{display:inline-flex;align-items:center;gap:8px;color:#333;font-size:14px;}
.switch-row input{width:auto;transform:scale(1.15);}

/* 学车推荐留言板 */
.board{margin:18px 14px 28px;background:#fff;border-radius:16px;padding:16px 16px 18px;box-shadow:0 6px 20px rgba(0,0,0,.06);}
.board-title{font-size:17px;margin:0 0 4px;}
.board-tip{font-size:12px;color:var(--muted);margin:0 0 12px;}
.board-list{max-height:300px;overflow:auto;margin-bottom:14px;}
.board-loading,.board-list .muted{font-size:13px;color:var(--muted);}
.board-item{border-bottom:1px solid #f0f0f0;padding:10px 0;}
.board-item:last-child{border-bottom:none;}
.board-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-bottom:4px;}
.board-name{font-weight:600;color:#333;}
.board-text{font-size:14px;color:#222;line-height:1.6;white-space:pre-wrap;word-break:break-word;}
.board-form input,.board-form textarea{width:100%;box-sizing:border-box;margin-bottom:8px;border:1px solid #e5e7eb;border-radius:10px;padding:9px 11px;font-size:14px;font-family:inherit;}
.board-form textarea{resize:vertical;}
.gb-btn{margin-top:2px;font-size:15px;padding:11px;}

/* 后台留言状态标签 */
.tag-on{display:inline-block;padding:2px 8px;border-radius:10px;background:#dcfce7;color:#16a34a;font-size:12px;}
.tag-off{display:inline-block;padding:2px 8px;border-radius:10px;background:#f3f4f6;color:#9ca3af;font-size:12px;}
.gb-content{max-width:360px;white-space:pre-wrap;word-break:break-word;}
.counter{text-align:right;color:var(--muted);font-size:12px;margin-top:4px;}
.h5-btn{width:100%;background:var(--primary);color:#fff;border:none;border-radius:12px;padding:14px;font-size:16px;font-weight:700;margin-top:18px;cursor:pointer;}
.h5-btn:disabled{opacity:.6;}
.h5-foot{text-align:center;color:#fff;opacity:.85;font-size:12px;margin-top:18px;}
.no-print{position:static;}