/* ===== 全佳暖通 ERP 全局样式 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f1f5f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-light: #64748b;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;
  --sidebar-bg: #0f172a;
  --sidebar-text: #cbd5e1;
}
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
.hidden { display: none !important; }

/* ===== 登录页 ===== */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); }
.login-box { background: var(--card); border-radius: 16px; padding: 40px 48px; width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.login-logo { font-size: 28px; font-weight: 700; text-align: center; color: var(--primary); }
.login-subtitle { text-align: center; color: var(--text-light); margin: 8px 0 24px; font-size: 14px; }
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form input { padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; outline: none; }
.login-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.login-error { color: var(--danger); font-size: 13px; text-align: center; }
.login-hint { margin-top: 16px; text-align: center; color: var(--text-light); font-size: 12px; }

/* ===== 主框架 ===== */
.app-page { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar-bg); color: var(--sidebar-text); display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 100; }
.sidebar-logo { padding: 20px 20px; font-size: 20px; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 0; }
.nav-group-title { padding: 12px 20px 6px; font-size: 12px; color: #64748b; text-transform: uppercase; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 20px; cursor: pointer; color: var(--sidebar-text); text-decoration: none; transition: all 0.15s; }
.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.1); }
.user-info { font-size: 13px; margin-bottom: 8px; color: #fff; }

.main-content { margin-left: 220px; flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar { background: var(--card); padding: 16px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.topbar h1 { font-size: 20px; font-weight: 600; }
.topbar-right { color: var(--text-light); font-size: 13px; }
.page-content { padding: 24px; flex: 1; }

/* ===== 组件 ===== */
.card { background: var(--card); border-radius: 12px; padding: 20px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); margin-bottom: 16px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: none; border-radius: 8px; cursor: pointer; font-size: 14px; transition: all 0.15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-outline { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-small { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 8px; overflow: hidden; }
th { background: #f8fafc; padding: 12px 12px; text-align: left; font-weight: 600; font-size: 13px; color: var(--text-light); border-bottom: 2px solid var(--border); white-space: nowrap; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
tr:hover td { background: #f8fafc; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-light { color: var(--text-light); }

/* 表单 */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; color: var(--text-light); }
.form-group input, .form-group select, .form-group textarea { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; }
.form-group input:focus, .form-group select:focus { border-color: var(--primary); }
.form-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.form-row input, .form-row select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; }

/* 标签/状态 */
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-yellow { background: #fef3c7; color: #b45309; }
.badge-red { background: #fee2e2; color: #b91c1c; }
.badge-gray { background: #f1f5f9; color: #475569; }

/* 统计卡片 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card); border-radius: 12px; padding: 20px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.stat-card .stat-label { font-size: 13px; color: var(--text-light); }
.stat-card .stat-value { font-size: 28px; font-weight: 700; margin-top: 8px; }
.stat-card .stat-sub { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* 弹窗 */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15,23,42,0.5); display: flex; align-items: flex-start; justify-content: center; z-index: 1000; overflow-y: auto; padding: 40px 16px; }
.modal { background: #fff; border-radius: 12px; width: 100%; max-width: 720px; box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header span { font-size: 16px; font-weight: 600; }
.modal-close { border: none; background: none; font-size: 24px; cursor: pointer; color: var(--text-light); }
.modal-body { padding: 20px; max-height: 65vh; overflow-y: auto; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* Toast */
.toast { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); background: #1e293b; color: #fff; padding: 12px 24px; border-radius: 8px; z-index: 2000; font-size: 14px; box-shadow: 0 4px 20px rgba(0,0,0,0.2); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* 明细行编辑 */
.item-editor { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.item-editor table { border: none; }
.item-editor input { width: 100%; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; }
.item-add-row { display: flex; gap: 8px; padding: 10px; align-items: center; background: #f8fafc; }
.item-add-row select, .item-add-row input { padding: 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; }

/* 空状态 */
.empty { text-align: center; color: var(--text-light); padding: 40px; font-size: 14px; }
.loading { text-align: center; color: var(--text-light); padding: 30px; }
.pagination { display: flex; gap: 8px; justify-content: flex-end; align-items: center; margin-top: 12px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }