/* 答题赢饭票系统 - 通用样式 */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--success:#16a34a;--warning:#f59e0b;
  --danger:#dc2626;--bg:#f1f5f9;--card:#fff;--text:#1e293b;--muted:#64748b;
  --border:#e2e8f0;--radius:12px;--shadow:0 1px 3px rgba(15,23,42,.08),0 4px 14px rgba(15,23,42,.06);
}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:14px}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}

.container{max-width:1200px;margin:0 auto;padding:20px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:8px;
  padding:9px 16px;font-size:14px;font-weight:500;transition:all .15s;background:var(--primary);color:#fff}
.btn:hover{background:var(--primary-dark)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-success{background:var(--success)}.btn-success:hover{background:#15803d}
.btn-danger{background:var(--danger)}.btn-danger:hover{background:#b91c1c}
.btn-warning{background:var(--warning);color:#1e293b}.btn-warning:hover{background:#d97706}
.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-outline:hover{background:#eff6ff}
.btn-ghost{background:transparent;color:var(--muted)}
.btn-ghost:hover{background:#f1f5f9;color:var(--text)}
.btn-sm{padding:5px 10px;font-size:13px;border-radius:6px}
.btn-lg{padding:12px 26px;font-size:16px;border-radius:10px}

/* 卡片 */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;border:1px solid var(--border)}
.card+.card{margin-top:16px}

/* 表单 */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:500;margin-bottom:6px;font-size:13px;color:var(--text)}
.input,.select,.textarea{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;outline:none;transition:border .15s}
.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.textarea{min-height:80px;resize:vertical}
.form-row{display:flex;gap:12px}
.form-row .form-group{flex:1}

/* 表格 */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
th{background:#f8fafc;font-weight:600;color:var(--muted);font-size:13px}
tr:hover td{background:#f8fafc}
.text-center{text-align:center}

/* 徽章 */
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:500}
.badge-green{background:#dcfce7;color:#166534}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-gray{background:#f1f5f9;color:#475569}
.badge-amber{background:#fef3c7;color:#92400e}
.badge-blue{background:#dbeafe;color:#1e40af}

/* 提示 toast */
.toast-container{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{padding:11px 18px;border-radius:10px;color:#fff;font-size:14px;box-shadow:var(--shadow);animation:toastIn .25s;max-width:80vw}
.toast-success{background:var(--success)}.toast-error{background:var(--danger)}.toast-info{background:var(--primary)}.toast-warn{background:var(--warning);color:#1e293b}
@keyframes toastIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* 空态 */
.empty{padding:40px;text-align:center;color:var(--muted)}

/* 加载 */
.loading{display:flex;justify-content:center;padding:40px;color:var(--muted)}
.spinner{width:26px;height:26px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* 分页 */
.pagination{display:flex;gap:6px;align-items:center;justify-content:center;margin-top:16px;flex-wrap:wrap}
.pagination button{min-width:32px;height:32px;border:1px solid var(--border);background:#fff;border-radius:6px;padding:0 8px}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination button:disabled{opacity:.45}

/* 顶部栏 */
.topbar{display:flex;align-items:center;justify-content:space-between;background:var(--card);border-bottom:1px solid var(--border);padding:0 24px;height:60px}
.topbar .brand{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}
.topbar .user{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:14px}

/* 布局 */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:#0f172a;color:#cbd5e1;flex-shrink:0;display:flex;flex-direction:column}
.sidebar .brand{padding:20px;font-size:16px;font-weight:700;color:#fff;border-bottom:1px solid #1e293b}
.sidebar nav{flex:1;padding:12px}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:8px;color:#cbd5e1;margin-bottom:2px;font-size:14px}
.sidebar nav a:hover{background:#1e293b;color:#fff}
.sidebar nav a.active{background:var(--primary);color:#fff}
.sidebar .foot{padding:16px;border-top:1px solid #1e293b;font-size:13px}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.content{padding:24px;flex:1}
.page-title{font-size:20px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* 统计卡片 */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.stat-card .label{font-size:13px;color:var(--muted)}
.stat-card .value{font-size:26px;font-weight:700;margin-top:4px}
.stat-card .sub{font-size:12px;color:var(--muted);margin-top:2px}
.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.chart-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.chart-card h3{font-size:15px;margin-bottom:12px}
.chart-card.wide{grid-column:1/-1}
.chart-box{position:relative;height:260px}

/* 工具条 */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar .input{max-width:260px}

/* 模态框 */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:14px;width:100%;max-width:520px;max-height:90vh;overflow:auto;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:16px}
.modal-body{padding:20px}
.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}
.modal-close{background:none;border:none;font-size:20px;color:var(--muted);cursor:pointer}

/* 拖拽上传 */
.drop-zone{border:2px dashed var(--border);border-radius:10px;padding:30px;text-align:center;color:var(--muted);cursor:pointer;transition:border .2s,background .2s}
.drop-zone:hover,.drop-zone.drag{border-color:var(--primary);background:#eff6ff}

/* 登录页 */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#e0e7ff,#f0f9ff)}
.auth-card{width:100%;max-width:400px;background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(15,23,42,.12);padding:36px}
.auth-card .logo{font-size:22px;font-weight:800;text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--muted);margin-bottom:24px;font-size:13px}

/* 答题页 */
.quiz-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.timer{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums}
.timer.warn{color:var(--danger);animation:blink 1s infinite}
@keyframes blink{50%{opacity:.4}}
.timer-bar{height:6px;background:var(--border);border-radius:4px;overflow:hidden;margin-top:6px}
.timer-bar .fill{height:100%;background:var(--success);transition:width 1s linear}
.timer-bar .fill.warn{background:var(--danger)}
.quiz-question{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:16px;box-shadow:var(--shadow)}
.quiz-question .q-title{font-size:16px;font-weight:600;margin-bottom:16px}
.quiz-question .q-type{font-size:12px;color:var(--primary);background:#eff6ff;padding:2px 8px;border-radius:6px;margin-left:8px;font-weight:500}
.option{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;margin-bottom:10px;cursor:pointer;transition:all .15s}
.option:hover{border-color:var(--primary);background:#f8faff}
.option.selected{border-color:var(--primary);background:#eff6ff}
.option .key{width:26px;height:26px;border-radius:50%;background:#f1f5f9;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0;font-size:13px}
.option.selected .key{background:var(--primary);color:#fff}
.option input{display:block}
.option .text{flex:1}

/* 结果页二维码 */
.qr-box{display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px}
.qr-frame{padding:14px;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
.big-success{font-size:40px;color:var(--success)}

/* 个人中心 */
.profile-head{display:flex;align-items:center;gap:18px}
.avatar{width:64px;height:64px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:700}

/* 扫码核销 */
.scan-wrap{display:flex;gap:20px;flex-wrap:wrap}
.scan-camera{width:100%;max-width:380px}
.scan-camera video{width:100%;border-radius:12px;background:#000;display:block}
.scan-result{flex:1;min-width:280px}

/* 移动端 */
@media(max-width:768px){
  .layout{flex-direction:column}
  .sidebar{width:100%;flex-direction:row;flex-wrap:wrap}
  .sidebar .brand{width:100%}
  .sidebar nav{display:flex;flex-wrap:wrap;gap:4px;padding:8px}
  .sidebar nav a{padding:8px 10px}
  .content{padding:14px}
  .chart-grid{grid-template-columns:1fr}
  .form-row{flex-direction:column;gap:0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}