/* 额外的自定义样式 */

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* 按钮样式增强 */
.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.cta-button:hover::before {
    left: 100%;
}

/* 卡片悬停效果 */
.service-card, .portfolio-item {
    transition: all 0.3s ease;
}

/* 表单样式增强 */
.form-group input:focus, .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* 响应式图片 */
img {
    max-width: 100%;
    height: auto;
}

/* 滚动动画元素初始状态 */
.service-card, .portfolio-item, .contact-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* 可见状态 */
.service-card.visible, .portfolio-item.visible, .contact-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 微信复制按钮反馈 */
.wechat-copy.copied {
    background-color: #10b981 !important;
}