/* ========== 全局样式 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #2F5496;
  --primary-light: #4A7CC9;
  --success: #27AE60;
  --warning: #F39C12;
  --danger: #E74C3C;
  --bg: #F5F6FA;
  --card: #FFFFFF;
  --text: #2C3E50;
  --text-secondary: #7F8C8D;
  --border: #E0E4E8;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
  -webkit-tap-highlight-color: transparent;
  padding-top: 52px; padding-bottom: 62px;
  min-height: 100vh;
}

/* ========== Header ========== */
#header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--primary); color: #fff; height: 52px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
#header-title { font-size: 18px; font-weight: 600; }
#header-user { font-size: 13px; margin-right: 8px; opacity: 0.85; }
.btn-icon { background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; padding: 4px 8px; }

/* ========== Tabbar ========== */
#tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
  background: var(--card); display: flex; border-top: 1px solid var(--border);
  height: 56px; padding-bottom: env(safe-area-inset-bottom);
}
.tab {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: none; background: none; color: var(--text-secondary); font-size: 13px; cursor: pointer;
  transition: color 0.2s;
}
.tab.active { color: var(--primary); }
.tab-icon { font-size: 22px; margin-bottom: 2px; }
.tab-label { font-size: 11px; }

/* ========== 页面切换 ========== */
.page { display: none; padding: 12px 16px; }
.page.active { display: block; }
#page-login { padding: 0; }

/* ========== 登录/注册页 ========== */
.login-box {
  max-width: 380px; margin: 24px auto 0; padding: 24px 20px;
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
}
.login-logo { font-size: 48px; text-align: center; margin-bottom: 8px; }
.login-box h2 { text-align: center; font-size: 20px; margin-bottom: 4px; }
.login-sub { text-align: center; color: var(--text-secondary); font-size: 13px; margin-bottom: 16px; }
.login-hint { text-align: center; color: var(--text-secondary); font-size: 11px; margin-top: 12px; }

/* Tab 切换 */
.tab-switch { display: flex; margin-bottom: 20px; border-radius: 8px; overflow: hidden; border: 1px solid var(--primary); }
.tab-btn { flex: 1; padding: 10px; border: none; background: #fff; color: var(--primary); font-size: 15px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.tab-btn.active { background: var(--primary); color: #fff; }
.form-hint { display: block; font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

/* ========== 表单 ========== */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; color: var(--text); background: var(--card); outline: none;
  transition: border-color 0.2s; -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); }
.form-container { max-width: 500px; margin: 0 auto; padding: 16px; }
.form-container h3 { font-size: 18px; margin-bottom: 16px; }

/* ========== 按钮 ========== */
.btn-primary {
  width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none;
  border-radius: 8px; font-size: 16px; font-weight: 600; cursor: pointer;
  transition: background 0.2s;
}
.btn-primary:active { background: var(--primary-light); }
.btn-outline {
  padding: 8px 16px; background: #fff; color: var(--primary); border: 1px solid var(--primary);
  border-radius: 8px; font-size: 14px; cursor: pointer; margin-right: 8px;
}
.btn-small {
  padding: 6px 14px; background: var(--primary); color: #fff; border: none;
  border-radius: 6px; font-size: 13px; cursor: pointer;
}
.btn-danger { padding: 10px 20px; background: var(--danger); color: #fff; border: none; border-radius: 8px; cursor: pointer; }
.btn-float {
  position: fixed; bottom: 80px; right: 20px; width: 52px; height: 52px;
  background: var(--primary); color: #fff; border: none; border-radius: 50%;
  font-size: 28px; cursor: pointer; box-shadow: 0 4px 16px rgba(47,84,150,0.4);
  z-index: 50; display: flex; align-items: center; justify-content: center;
}
.mt-12 { margin-top: 12px; }

/* ========== 筛选栏 ========== */
.filter-bar {
  display: flex; gap: 8px; margin-bottom: 12px; align-items: center;
}
.filter-bar select {
  flex: 1; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; background: var(--card);
}

/* ========== 任务列表 ========== */
.list-container { display: flex; flex-direction: column; gap: 10px; }
.task-card {
  background: var(--card); border-radius: var(--radius); padding: 14px 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06); cursor: pointer; transition: transform 0.1s;
}
.task-card:active { transform: scale(0.98); }
.task-card .task-title { font-size: 16px; font-weight: 500; margin-bottom: 6px; }
.task-card .task-meta { font-size: 12px; color: var(--text-secondary); display: flex; gap: 12px; flex-wrap: wrap; }
.task-card .task-status {
  display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; font-weight: 500;
}
.status-pending { background: #FFF3CD; color: #856404; }
.status-in_progress { background: #CCE5FF; color: #004085; }
.status-completed { background: #D4EDDA; color: #155724; }
.status-unfinished { background: #F8D7DA; color: #721C24; }
.status-overdue { background: #F8D7DA; color: #C0392B; font-weight: 600; }
.task-overdue { border-left: 3px solid var(--danger); background: #FFF5F5; }
.task-due-soon { border-left: 3px solid var(--warning); background: #FFFDE7; }
.empty-state { text-align: center; color: var(--text-secondary); padding: 40px 0; font-size: 14px; }

/* ========== 任务详情 ========== */
.detail-section { margin-bottom: 16px; }
.detail-section h4 { font-size: 14px; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.detail-section p { font-size: 15px; line-height: 1.6; }
.result-photo { width: 80px; height: 80px; object-fit: cover; border-radius: 6px; margin: 4px; }
.photo-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.photo-grid img { width: 70px; height: 70px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); }


/* ========== 天窗分类统计 ========== */
.tc-mini-stats { display: flex; flex-wrap: wrap; gap: 8px; }
.tc-mini-item { flex: 1; min-width: 90px; background: #F5F7FA; border: 1px solid var(--border); border-radius: 8px; padding: 8px; text-align: center; }
.tc-mini-all { background: #EAF2FF; border-color: var(--primary); }
.tc-mini-num { font-size: 18px; font-weight: 700; color: var(--primary); }
.tc-mini-label { font-size: 11px; color: var(--text-secondary); margin-top: 2px; line-height: 1.3; }

/* ========== 统计页 ========== */
.stats-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.stat-card {
  background: var(--card); border-radius: var(--radius); padding: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06); text-align: center;
}
.stat-card .stat-num { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.chart-container { background: var(--card); border-radius: var(--radius); padding: 14px; margin-bottom: 12px; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.chart-container h4 { font-size: 14px; margin-bottom: 10px; color: var(--text-secondary); }
.chart-bar { display: flex; align-items: center; margin-bottom: 8px; font-size: 13px; }
.chart-bar .bar-label { width: 60px; text-align: right; margin-right: 8px; flex-shrink: 0; white-space: nowrap; }
.chart-bar .bar-track { flex: 1; height: 20px; background: #ECF0F1; border-radius: 10px; overflow: hidden; }
.chart-bar .bar-fill { height: 100%; border-radius: 10px; transition: width 0.5s; min-width: 2px; }
.bar-completed { background: var(--success); }
.bar-pending { background: var(--warning); }
.bar-unfinished { background: var(--danger); }

/* ========== 个人中心 ========== */
.profile-card {
  background: var(--card); border-radius: var(--radius); padding: 20px; display: flex;
  align-items: center; gap: 14px; box-shadow: 0 1px 4px rgba(0,0,0,0.06); margin-bottom: 12px;
}
.avatar { font-size: 40px; }
.profile-name { font-size: 18px; font-weight: 600; }
.profile-role { font-size: 13px; color: var(--text-secondary); }
.profile-group { font-size: 13px; color: var(--primary); }
.menu-list { background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.menu-item { width: 100%; padding: 14px 16px; background: none; border: none; border-bottom: 1px solid var(--border); text-align: left; font-size: 15px; cursor: pointer; }
.menu-item:last-child { border-bottom: none; }
.version-text { text-align: center; color: var(--text-secondary); font-size: 12px; margin-top: 20px; }

/* ========== Modal ========== */
.modal { position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 200; display: flex; align-items: flex-end; justify-content: center; }
.modal-mask { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.4); }
.modal-content {
  position: relative; background: var(--card); border-radius: 16px 16px 0 0;
  padding: 20px; width: 100%; max-width: 500px; max-height: 70vh; overflow-y: auto;
}
.modal-content h4 { font-size: 17px; margin-bottom: 14px; text-align: center; }
.photo-actions { display: flex; gap: 10px; justify-content: center; }

/* ========== Toast ========== */
.toast {
  position: fixed; top: 70px; left: 50%; transform: translateX(-50%); z-index: 999;
  background: rgba(0,0,0,0.8); color: #fff; padding: 10px 24px;
  border-radius: 20px; font-size: 14px; white-space: nowrap;
  animation: toastIn 0.3s ease;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(-10px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
/* ========== 设备扫码页 ========== */
.scan-home { text-align: center; padding-top: 24px; }
.btn-scan-big {
  width: 150px; height: 150px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none;
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(47,84,150,0.4); cursor: pointer;
  transition: transform 0.15s;
}
.btn-scan-big:active { transform: scale(0.96); }
.scan-icon { font-size: 44px; line-height: 1; }
.scan-text { font-size: 18px; font-weight: 600; margin-top: 6px; }
.scan-hint { color: var(--text-secondary); font-size: 13px; margin-top: 14px; }
.manage-entry {
  margin-top: 28px; padding: 14px; border-radius: 10px;
  border: 1px dashed var(--primary); color: var(--primary);
  font-size: 15px; cursor: pointer; background: #fff;
}
#scanner-region video { border-radius: 8px; }

/* ========== 快速登录（实验阶段） ========== */
.quick-tip { text-align: center; color: var(--primary); font-size: 13px; margin-bottom: 14px; font-weight: 600; }
.quick-accounts { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.quick-account {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 14px 8px; border: 1px solid var(--border); border-radius: 10px;
  background: #fff; cursor: pointer; transition: all 0.15s;
}
.quick-account:active { transform: scale(0.96); background: #EFF4FD; border-color: var(--primary); }
.qa-role { font-size: 14px; font-weight: 700; color: var(--primary); }
.qa-name { font-size: 12px; color: var(--text-secondary); }

/* ========== 备案号 ========== */
.site-footer {
  text-align: center; padding: 16px 12px 8px;
  color: #999; font-size: 12px; line-height: 1.8;
}
.site-footer a { color: #999; text-decoration: none; }
.site-footer a:hover { color: var(--primary); }