/* 全局样式 */
body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    color: #fff !important;
}

.navbar-nav .nav-link:hover {
    color: #fff !important;
    font-size: 1.1rem;
}

/* 英雄区域样式 */
.hero-section {
    min-height: auto;
    display: flex;
    align-items: center;
}

/* 卡片样式 */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

/* 按钮样式 */
.btn {
    border-radius: 50px;
    padding: 10px 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(45deg, #667eea, #764ba2);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #764ba2, #667eea);
    transform: translateY(-2px);
}

/* 页脚样式 */
footer {
    margin-top: auto;
}

footer h5 {
    color: #fff;
    margin-bottom: 1rem;
}

footer p {
    margin-bottom: 0.5rem;
}

/* 联系表单样式 */
.contact-form {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* 新闻卡片样式 */
.news-card {
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

/* 产品卡片样式 */
.product-card {
    border-radius: 10px;
    overflow: hidden;
    text-align: center;
}

.product-card .card-img-top {
    height: 200px;
    object-fit: cover;
}

/* 面包屑样式 */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 2rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: ">";
    color: #6c757d;
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 60px 0;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .card {
        margin-bottom: 20px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}