/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 首屏样式 */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://p3-doubao-search-sign.byteimg.com/labis/image/e8ccb859565337a8a5c65bd2a54651f4~tplv-be4g95zd3a-image.jpeg?lk3s=feb11e32&x-expires=1795165464&x-signature=eOUmHJkhHFJ2jiiTtirwvzIYG%2F8%3D') center/cover no-repeat;
    height: 100vh;
    display: flex;
    align-items: center;
}

/* 页面标题样式 */
.page-header {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://p3-doubao-search-sign.byteimg.com/labis/image/e8ccb859565337a8a5c65bd2a54651f4~tplv-be4g95zd3a-image.jpeg?lk3s=feb11e32&x-expires=1795165464&x-signature=eOUmHJkhHFJ2jiiTtirwvzIYG%2F8%3D') center/cover no-repeat;
    display: flex;
    align-items: center;
}

/* 卡片样式 */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 按钮样式 */
.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

/* 表单样式 */
.form-control {
    border-radius: 0.25rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 页脚样式 */
footer {
    background-color: #343a40;
    color: #fff;
}

footer a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #007bff;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .hero-section {
        height: auto;
        padding: 100px 0;
    }
    
    .page-header {
        padding: 80px 0;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
}

/* 懒加载图片样式 */
.lazy {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy.loaded {
    opacity: 1;
}