/* 自定义样式补充 */

/* 全局样式 */
body {
    background-color: #f8f9fa;
    color: #333;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 卡片样式优化 */
.card {
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    /* 移除 translateY 效果，保留阴影增强 */
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* 按钮样式 */
.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    transform: translateY(-2px);
}

.btn-success {
    transition: all 0.3s ease;
}

.btn-success:hover {
    transform: translateY(-2px);
}

/* 表单元素样式 */
.form-control {
    border-radius: 8px;
    border: 1px solid #ced4da;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 输入组样式 */
.input-group-text {
    border-radius: 8px 0 0 8px;
    background-color: #e9ecef;
}

/* 加载动画 */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.4em;
}

/* 结果区域动画 */
#resultArea, #errorArea {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 模态框样式 */
.modal-content {
    border-radius: 12px;
}

/* 响应式调整 */
@media (max-width: 576px) {
    .card-body {
        padding: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    .spinner-border {
        width: 2rem;
        height: 2rem;
    }
}

/* 帮助链接样式 */
.card-footer a {
    color: #0d6efd;
    text-decoration: none;
}

.card-footer a:hover {
    text-decoration: underline;
}