body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

/* 首页图标圆形背景 */
.icon-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 功能特性图标 */
.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* 卡片样式 */
.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 1.5rem;
    border: none;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

/* 按钮悬停效果 */
.hover-lift {
    transition: all 0.2s ease;
}

.hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* 表单元素 */
.form-control-lg.rounded-end-pill {
    border-top-right-radius: 50rem !important;
    border-bottom-right-radius: 50rem !important;
}

.form-select-lg.rounded-end-pill {
    border-top-right-radius: 50rem !important;
    border-bottom-right-radius: 50rem !important;
}

/* Select2样式调整 */
.select2-container--default .select2-selection--single {
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
    border-top-right-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    height: calc(1.5em + 1rem + 2px) !important;
    display: flex;
    align-items: center;
}

.select2-container .select2-selection--single .select2-selection__rendered {
    padding-left: 0.5rem;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: calc(1.5em + 1rem + 2px) !important;
}

.input-group-text {
    background-color: #f8f9fa;
}

/* 导航栏 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

.nav-link {
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: rgba(255, 255, 255, 0.85) !important;
}

/* 表格样式 */
.table th {
    border-top: none;
    font-weight: 600;
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.05);
}

/* 徽章样式 */
.badge {
    font-weight: 500;
}

/* 警告框 */
.alert {
    border-radius: 0.375rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.alert-dismissible .btn-close {
    padding: 1rem 1rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .display-5 {
        font-size: 2rem;
    }
    
    .icon-circle {
        width: 60px;
        height: 60px;
    }
    
    .d-flex.flex-wrap.justify-content-center.gap-3 {
        gap: 1rem !important;
    }
    
    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
}