/* 全局样式 */
body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 卡片效果 */
.card {
    border: none;
    border-radius: 0.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.1) !important;
}

.school-card {
    border-left: 4px solid #4e73df;
}

/* 搜索框样式 */
.input-group-text {
    transition: all 0.3s;
}

.form-control:focus + .input-group-text {
    background-color: #e9ecef;
    color: #4e73df;
}

/* 空状态提示 */
.empty-state {
    opacity: 0.7;
    transition: opacity 0.3s;
}

.empty-state:hover {
    opacity: 1;
}

/* 管理员列表 */
.admin-list {
    max-height: 300px;
    overflow-y: auto;
}

.admin-list::-webkit-scrollbar {
    width: 5px;
}

.admin-list::-webkit-scrollbar-thumb {
    background-color: rgba(0,0,0,0.1);
    border-radius: 10px;
}

/* 头像样式 */
.avatar {
    font-weight: bold;
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .school-card {
        margin-bottom: 1.5rem;
    }
    
    .card-header h5 {
        font-size: 1.1rem;
    }
}