/* ============================================
   南方电网蓝色主题 CSS 变量
   ============================================ */
:root {
    --csg-primary: #1456A0;
    --csg-primary-dark: #0D3F7A;
    --csg-primary-darker: #092D58;
    --csg-primary-light: #2B7ADB;
    --csg-primary-lighter: #E8F1FB;
    --csg-accent: #D4A843;
    --csg-accent-light: #F5EDD4;
    --csg-accent-dark: #B8922E;
    --csg-sidebar-bg: #092D58;
    --csg-sidebar-hover: rgba(255, 255, 255, 0.08);
    --csg-sidebar-active: rgba(255, 255, 255, 0.15);
    --csg-body-bg: #F0F3F7;
    --csg-card-bg: #FFFFFF;
    --csg-border: #E0E6EE;
    --csg-text-primary: #1A2332;
    --csg-text-secondary: #5A6B7F;
    --csg-text-muted: #8C9BB0;
    --csg-success: #10B981;
    --csg-warning: #F59E0B;
    --csg-danger: #EF4444;
    --csg-info: #3B82F6;
    --csg-radius-sm: 6px;
    --csg-radius-md: 10px;
    --csg-radius-lg: 12px;
    --csg-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --csg-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
    --csg-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08);
    --csg-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 68px;
    --header-height: 60px;
}

/* ============================================
   全局基础
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--csg-body-bg);
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--csg-text-primary);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
}

::selection { background-color: var(--csg-primary); color: #fff; }

/* ============================================
   侧边栏
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    background: linear-gradient(180deg, var(--csg-sidebar-bg) 0%, #061E3C 100%);
    color: #fff;
    transition: var(--csg-transition);
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

.sidebar::-webkit-scrollbar { width: 0; }

/* 收缩状态 */
.sidebar.collapsed { width: var(--sidebar-collapsed-width); }
.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .toggle-icon { display: none; }
.sidebar.collapsed .sidebar-header { justify-content: center; padding: 18px 0; }
.sidebar.collapsed .sidebar-logo { margin: 0; }
.sidebar.collapsed .nav-link { justify-content: center; padding: 12px 0; border-left: none; }
.sidebar.collapsed .nav-link i { margin: 0; font-size: 18px; }
.sidebar.collapsed .nav-subsection { display: none; }
.sidebar.collapsed .nav-section-toggle { justify-content: center; }
.sidebar.collapsed .collapse-btn { justify-content: center; padding: 14px 0; }
.sidebar.collapsed .collapse-btn span { display: none; }
.sidebar.collapsed .collapse-btn i { transform: rotate(180deg); }

.sidebar-header {
    padding: 20px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.sidebar-logo {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--csg-primary-light), var(--csg-primary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-brand { display: flex; flex-direction: column; overflow: hidden; white-space: nowrap; }
.sidebar-brand-title { font-size: 15px; font-weight: 600; letter-spacing: 0.3px; line-height: 1.3; }
.sidebar-brand-sub { font-size: 11px; color: rgba(255, 255, 255, 0.45); }

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-section-label {
    padding: 14px 20px 6px;
    font-size: 10px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.6);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 11px;
    transition: var(--csg-transition);
    border-left: 3px solid transparent;
    font-size: 13.5px;
    font-weight: 450;
    text-decoration: none;
    position: relative;
    white-space: nowrap;
}

.sidebar .nav-link i { width: 18px; text-align: center; font-size: 15px; opacity: 0.75; flex-shrink: 0; }

.sidebar .nav-link:hover {
    color: #fff;
    background-color: var(--csg-sidebar-hover);
    border-left-color: var(--csg-accent);
}

.sidebar .nav-link.active {
    color: #fff;
    background-color: var(--csg-sidebar-active);
    border-left-color: var(--csg-accent);
    font-weight: 600;
}

.sidebar .nav-link.active i { opacity: 1; }

.nav-section-toggle { cursor: pointer; font-weight: 600 !important; font-size: 13px !important; letter-spacing: 0.2px; }

.nav-section-toggle .toggle-icon {
    position: absolute;
    right: 18px;
    font-size: 10px;
    transition: transform 0.3s ease;
}

.nav-section-toggle.expanded .toggle-icon { transform: rotate(180deg); }

.nav-subsection {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background: rgba(0, 0, 0, 0.15);
}

.nav-subsection.show { max-height: 600px; }

.nav-sub-link { padding-left: 52px !important; font-size: 13px !important; font-weight: 400 !important; }

/* 收缩按钮 */
.collapse-btn {
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 11px;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--csg-transition);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 13px;
    flex-shrink: 0;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
}

.collapse-btn:hover { color: rgba(255, 255, 255, 0.8); background: rgba(255, 255, 255, 0.04); }
.collapse-btn i { width: 18px; text-align: center; font-size: 15px; transition: transform 0.3s ease; flex-shrink: 0; }
.collapse-btn span { transition: opacity 0.2s ease; }

/* ============================================
   遮罩层（移动端）
   ============================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 999;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.sidebar-overlay.show { display: block; }

/* ============================================
   主内容区域
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--csg-transition);
}

.main-content.expanded { margin-left: var(--sidebar-collapsed-width); }

/* ============================================
   顶部导航栏
   ============================================ */
.top-header {
    background: #fff;
    padding: 0 24px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--csg-border);
    position: sticky;
    top: 0;
    z-index: 50;
    gap: 12px;
}

.header-left { display: flex; align-items: center; gap: 14px; min-width: 0; }

.mobile-menu-btn {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    border: none;
    background: var(--csg-body-bg);
    color: var(--csg-text-secondary);
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--csg-transition);
}

.mobile-menu-btn:hover { background: var(--csg-primary-lighter); color: var(--csg-primary); }

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--csg-text-muted);
    overflow: hidden;
    white-space: nowrap;
}

.breadcrumb-nav a { color: var(--csg-text-muted); text-decoration: none; transition: color 0.2s; }
.breadcrumb-nav a:hover { color: var(--csg-primary); }
.breadcrumb-nav .current { color: var(--csg-text-primary); font-weight: 500; }
.breadcrumb-nav .separator { color: #CBD5E1; }

.header-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.header-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: var(--csg-body-bg);
    color: var(--csg-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--csg-transition);
    position: relative;
    font-size: 15px;
}

.header-icon-btn:hover { background: var(--csg-primary-lighter); color: var(--csg-primary); }

.notification-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 7px;
    height: 7px;
    background: var(--csg-danger);
    border-radius: 50%;
    border: 2px solid #fff;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 5px 10px 5px 5px;
    border-radius: 8px;
    transition: var(--csg-transition);
}

.user-profile:hover { background: var(--csg-body-bg); }

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--csg-primary), var(--csg-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    flex-shrink: 0;
    object-fit: cover;
}

img.user-avatar { background: none; }

.user-meta { line-height: 1.3; }
.user-name { font-size: 13px; font-weight: 600; color: var(--csg-text-primary); }
.user-role { font-size: 11px; color: var(--csg-text-muted); }

/* ============================================
   页面内容区域
   ============================================ */
.page-wrapper { padding: 20px 24px; }

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 12px;
}

.page-title { font-size: 20px; font-weight: 700; color: var(--csg-text-primary); margin: 0; }
.page-title-sub { font-size: 13px; color: var(--csg-text-muted); margin-top: 3px; }

/* ============================================
   统计卡片
   ============================================ */
.stat-card {
    background: #fff;
    border-radius: var(--csg-radius-lg);
    padding: 18px 20px;
    box-shadow: var(--csg-shadow-sm);
    border: 1px solid var(--csg-border);
    transition: var(--csg-transition);
    display: flex;
    align-items: center;
    gap: 14px;
}

.stat-card:hover { box-shadow: var(--csg-shadow-md); transform: translateY(-2px); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--csg-primary-lighter); color: var(--csg-primary); }
.stat-icon.gold { background: var(--csg-accent-light); color: var(--csg-accent-dark); }
.stat-icon.cyan { background: #E0F7FA; color: #0097A7; }
.stat-icon.red { background: #FEF2F2; color: var(--csg-danger); }
.stat-icon.green { background: #ECFDF5; color: var(--csg-success); }

.stat-info { flex: 1; min-width: 0; }
.stat-label { font-size: 12px; color: var(--csg-text-muted); margin-bottom: 2px; }
.stat-value { font-size: 24px; font-weight: 700; color: var(--csg-text-primary); line-height: 1.2; }
.stat-change { font-size: 11px; margin-top: 2px; display: flex; align-items: center; gap: 3px; }
.stat-change.up { color: var(--csg-success); }
.stat-change.down { color: var(--csg-danger); }

/* ============================================
   筛选搜索区域
   ============================================ */
.filter-card {
    background: #fff;
    border-radius: var(--csg-radius-lg);
    padding: 18px 20px;
    box-shadow: var(--csg-shadow-sm);
    border: 1px solid var(--csg-border);
    margin-bottom: 16px;
}

.filter-row { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }

.filter-group { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 140px; }

.filter-label { font-size: 11px; font-weight: 600; color: var(--csg-text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.filter-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* ============================================
   表单控件
   ============================================ */
.form-control, .form-select {
    border-radius: var(--csg-radius-sm);
    border: 1px solid var(--csg-border);
    padding: 8px 12px;
    font-size: 13px;
    color: var(--csg-text-primary);
    transition: var(--csg-transition);
    background-color: #fff;
    height: 38px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--csg-primary);
    box-shadow: 0 0 0 3px rgba(20, 86, 160, 0.1);
}

.form-control::placeholder { color: var(--csg-text-muted); }

.form-label {
    font-weight: 500;
    color: var(--csg-text-secondary);
    margin-bottom: 0.4rem;
    font-size: 13px;
}

.form-text { font-size: 12px; color: var(--csg-text-muted); }

.form-check-input:checked {
    background-color: var(--csg-primary);
    border-color: var(--csg-primary);
}

.input-group-text {
    background-color: var(--csg-body-bg);
    border: 1px solid var(--csg-border);
    border-radius: var(--csg-radius-sm);
    font-size: 13px;
    color: var(--csg-text-muted);
}

/* ============================================
   按钮系统
   ============================================ */
.btn {
    border-radius: var(--csg-radius-sm);
    font-weight: 500;
    font-size: 13px;
    padding: 8px 16px;
    transition: var(--csg-transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: none;
    white-space: nowrap;
    cursor: pointer;
}

.btn-primary {
    background: var(--csg-primary);
    border-color: var(--csg-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--csg-primary-dark);
    border-color: var(--csg-primary-dark);
    color: #fff;
    box-shadow: 0 4px 12px rgba(20, 86, 160, 0.25);
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--csg-primary);
    border: 1px solid var(--csg-primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--csg-primary);
    border-color: var(--csg-primary);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--csg-text-secondary);
    border: 1px solid var(--csg-border);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--csg-body-bg);
    color: var(--csg-text-primary);
}

.btn-danger { background: var(--csg-danger); border-color: var(--csg-danger); color: #fff; }
.btn-danger:hover { background: #DC2626; border-color: #DC2626; color: #fff; }

.btn-outline-danger { color: var(--csg-danger); border: 1px solid var(--csg-danger); background: transparent; }
.btn-outline-danger:hover { background: var(--csg-danger); color: #fff; }

.btn-outline-success { color: var(--csg-success); border: 1px solid var(--csg-success); background: transparent; }
.btn-outline-success:hover { background: var(--csg-success); color: #fff; }

.btn-outline-info { color: var(--csg-info); border: 1px solid var(--csg-info); background: transparent; }
.btn-outline-info:hover { background: var(--csg-info); color: #fff; }

.btn-outline-warning { color: var(--csg-warning); border: 1px solid var(--csg-warning); background: transparent; }
.btn-outline-warning:hover { background: var(--csg-warning); color: #fff; }

.btn-ghost {
    background: transparent;
    color: var(--csg-text-secondary);
    border: 1px solid var(--csg-border);
}

.btn-ghost:hover { background: var(--csg-body-bg); color: var(--csg-text-primary); }

.btn-sm { padding: 4px 10px; font-size: 12px; }

.btn-icon {
    width: 30px;
    height: 30px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--csg-border);
    background: #fff;
    color: var(--csg-text-secondary);
    cursor: pointer;
    transition: var(--csg-transition);
}

.btn-icon:hover { background: var(--csg-primary-lighter); color: var(--csg-primary); border-color: var(--csg-primary); }

/* ============================================
   数据表格
   ============================================ */
.table-card {
    background: #fff;
    border-radius: var(--csg-radius-lg);
    box-shadow: var(--csg-shadow-sm);
    border: 1px solid var(--csg-border);
    overflow: hidden;
    margin-bottom: 16px;
}

.table-card-header {
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--csg-border);
    gap: 10px;
    flex-wrap: wrap;
}

.table-card-title { font-size: 14px; font-weight: 600; color: var(--csg-text-primary); display: flex; align-items: center; gap: 8px; }

.record-count {
    background: var(--csg-primary-lighter);
    color: var(--csg-primary);
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 20px;
}

.table { margin-bottom: 0; }

.table thead th {
    background: #F7F9FB;
    padding: 10px 14px;
    font-size: 11px;
    font-weight: 600;
    color: var(--csg-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--csg-border);
    text-align: left;
    white-space: nowrap;
}

.table tbody td {
    padding: 12px 14px;
    font-size: 13px;
    color: var(--csg-text-primary);
    border-bottom: 1px solid #F1F5F9;
    vertical-align: middle;
}

.table tbody tr { transition: background 0.15s; }
.table tbody tr:hover { background: #F8FAFC; }
.table tbody tr:last-child td { border-bottom: none; }

/* ============================================
   标签/徽章
   ============================================ */
.badge-csg { display: inline-flex; align-items: center; gap: 3px; padding: 3px 8px; border-radius: 20px; font-size: 11px; font-weight: 500; white-space: nowrap; }

.badge-success, .badge.bg-success-soft { background: #ECFDF5 !important; color: #065F46 !important; }
.badge-warning, .badge.bg-warning-soft { background: #FFFBEB !important; color: #92400E !important; }
.badge-danger, .badge.bg-danger-soft { background: #FEF2F2 !important; color: #991B1B !important; }
.badge-info, .badge.bg-info-soft { background: #EFF6FF !important; color: #1E40AF !important; }
.badge-primary-soft { background: var(--csg-primary-lighter) !important; color: var(--csg-primary) !important; }
.badge-gold { background: var(--csg-accent-light) !important; color: var(--csg-accent-dark) !important; }
.badge-default { background: #F1F5F9 !important; color: var(--csg-text-secondary) !important; }

/* ============================================
   分页
   ============================================ */
.table-footer {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--csg-border);
    gap: 10px;
    flex-wrap: wrap;
}

.table-footer-info { font-size: 12px; color: var(--csg-text-muted); }

.pagination { gap: 3px; margin: 0; }

.pagination .page-link {
    border-radius: 6px;
    border: 1px solid var(--csg-border);
    color: var(--csg-text-secondary);
    padding: 6px 12px;
    font-size: 13px;
    transition: var(--csg-transition);
}

.pagination .page-link:hover {
    border-color: var(--csg-primary);
    color: var(--csg-primary);
    background: var(--csg-primary-lighter);
}

.pagination .page-item.active .page-link {
    background: var(--csg-primary);
    color: #fff;
    border-color: var(--csg-primary);
}

/* ============================================
   卡片
   ============================================ */
.card {
    border-radius: var(--csg-radius-lg);
    box-shadow: var(--csg-shadow-sm);
    border: 1px solid var(--csg-border);
    overflow: hidden;
    transition: var(--csg-transition);
}

.card-header {
    background-color: #F7F9FB;
    border-bottom: 1px solid var(--csg-border);
    padding: 14px 20px;
    font-weight: 600;
    font-size: 14px;
}

.card-body { padding: 20px; }

/* ============================================
   模态框
   ============================================ */
.modal-content {
    border-radius: var(--csg-radius-lg);
    border: none;
    box-shadow: var(--csg-shadow-lg);
    overflow: hidden;
}

.modal-header {
    background-color: #F7F9FB;
    border-bottom: 1px solid var(--csg-border);
    padding: 14px 20px;
}

.modal-header.bg-primary { background: var(--csg-primary) !important; color: #fff; }
.modal-header.bg-primary .btn-close { filter: brightness(0) invert(1); }

.modal-title { font-weight: 600; color: var(--csg-text-primary); font-size: 15px; }
.modal-body { padding: 20px; }
.modal-footer { border-top: 1px solid var(--csg-border); padding: 14px 20px; }

/* ============================================
   头像
   ============================================ */
.avatar-cell { display: flex; align-items: center; gap: 8px; }

.avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
    color: #fff;
    flex-shrink: 0;
}

.avatar-blue { background: linear-gradient(135deg, var(--csg-primary), var(--csg-primary-light)); }
.avatar-gold { background: linear-gradient(135deg, var(--csg-accent), var(--csg-accent-dark)); }
.avatar-cyan { background: linear-gradient(135deg, #0097A7, #00BCD4); }

/* ============================================
   权限标签
   ============================================ */
.permission-tags { display: flex; gap: 4px; flex-wrap: wrap; }

.perm-tag { padding: 2px 7px; border-radius: 4px; font-size: 11px; font-weight: 500; }
.perm-tag.blue { background: #EFF6FF; color: #1E40AF; }
.perm-tag.gold { background: #FFFBEB; color: #92400E; }
.perm-tag.teal { background: #E0F7FA; color: #00695C; }

/* ============================================
   浮动操作按钮
   ============================================ */
.fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--csg-primary), var(--csg-primary-light));
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(20, 86, 160, 0.35);
    transition: var(--csg-transition);
    z-index: 100;
    text-decoration: none;
}

.fab:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 10px 30px rgba(20, 86, 160, 0.4); color: #fff; }

/* ============================================
   空状态
   ============================================ */
.empty-state {
    text-align: center;
    padding: 50px 20px;
}

.empty-state i { font-size: 3rem; color: var(--csg-text-muted); margin-bottom: 16px; }
.empty-state h4 { color: var(--csg-text-primary); font-weight: 600; margin-bottom: 8px; font-size: 16px; }
.empty-state p { color: var(--csg-text-muted); font-size: 13px; }

/* ============================================
   闪现消息
   ============================================ */
.alert {
    border-radius: var(--csg-radius-md);
    border: none;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 13px;
}

/* ============================================
   链接
   ============================================ */
a { color: var(--csg-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--csg-primary-dark); }

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in { animation: fadeInUp 0.35s ease forwards; }
.delay-1 { animation-delay: 0.05s; }
.delay-2 { animation-delay: 0.1s; }
.delay-3 { animation-delay: 0.15s; }
.delay-4 { animation-delay: 0.2s; }

/* ============================================
   通用表单卡片
   ============================================ */
.form-card {
    background: var(--csg-card-bg);
    border-radius: var(--csg-radius-lg);
    box-shadow: var(--csg-shadow-sm);
    border: 1px solid var(--csg-border);
    padding: 24px;
    margin-bottom: 16px;
}

.form-section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--csg-primary);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--csg-border);
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-section-title i { font-size: 14px; }

.required-field::after { content: ' *'; color: var(--csg-danger); }

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid var(--csg-border);
    margin-top: 20px;
}

/* ============================================
   响应式 — 平板 (<=992px)
   ============================================ */
@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); width: var(--sidebar-width); }
    .sidebar.mobile-open { transform: translateX(0); }
    .sidebar.collapsed { transform: translateX(-100%); }

    .main-content,
    .main-content.expanded { margin-left: 0 !important; }

    .mobile-menu-btn { display: flex; }
    .collapse-btn { display: none; }

    .page-wrapper { padding: 16px; }
    .top-header { padding: 0 16px; }

    .user-meta { display: none; }

    .stat-card { padding: 14px 16px; }
    .stat-icon { width: 42px; height: 42px; font-size: 18px; }
    .stat-value { font-size: 20px; }

    .filter-group { min-width: 120px; }

    .page-header { flex-direction: column; gap: 10px; }
}

/* ============================================
   响应式 — 手机 (<=576px)
   ============================================ */
@media (max-width: 576px) {
    :root { --header-height: 54px; }

    .page-wrapper { padding: 12px; }
    .top-header { padding: 0 12px; height: var(--header-height); }

    .page-title { font-size: 17px; }
    .page-title-sub { font-size: 12px; }

    .stat-card { padding: 12px; gap: 10px; }
    .stat-icon { width: 38px; height: 38px; font-size: 16px; border-radius: 8px; }
    .stat-value { font-size: 18px; }
    .stat-label { font-size: 11px; }

    .filter-card { padding: 14px; }
    .filter-row { gap: 10px; }
    .filter-group { min-width: 100%; }
    .filter-actions { width: 100%; }
    .filter-actions .btn { flex: 1; justify-content: center; }

    .btn { font-size: 12px; padding: 7px 12px; }
    .btn-sm { padding: 3px 8px; font-size: 11px; }

    .form-control, .form-select { height: 36px; font-size: 13px; padding: 7px 10px; }

    .table-card-header { padding: 12px 14px; }
    .table thead th { padding: 8px 10px; font-size: 10px; }
    .table tbody td { padding: 10px; font-size: 12px; }

    .table-footer { padding: 10px 14px; flex-direction: column; align-items: flex-start; gap: 8px; }

    .fab { width: 46px; height: 46px; border-radius: 12px; font-size: 18px; bottom: 16px; right: 16px; }

    .header-icon-btn { width: 32px; height: 32px; font-size: 14px; }

    .badge-csg, .badge { font-size: 10px; }
    .perm-tag { font-size: 10px; }

    .avatar-sm { width: 28px; height: 28px; font-size: 11px; }

    .permission-tags { display: none; }

    .modal-dialog { margin: 8px; }
    .modal-body { padding: 16px; }
}