* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    color: #ff4757;
    font-weight: bold;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #ff4757;
}

.hero {
    background: linear-gradient(135deg, #ff4757, #fd79a8);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    font-size: 16px;
}

.btn.primary {
    background-color: #fff;
    color: #ff4757;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}

.btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
}

.btn.secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn.secondary:hover {
    background-color: #fff;
    color: #ff4757;
    transform: translateY(-3px);
}

.breadcrumb {
    background-color: #fff;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb ul {
    display: flex;
    list-style: none;
}

.breadcrumb ul li {
    margin-right: 10px;
}

.breadcrumb ul li:not(:last-child)::after {
    content: '>';
    margin-left: 10px;
    color: #999;
}

.breadcrumb ul li a {
    text-decoration: none;
    color: #666;
}

.breadcrumb ul li a:hover {
    color: #ff4757;
}

.services {
    padding: 80px 0;
    background-color: #fff;
}

.services h3 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
    font-weight: bold;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-item .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-item h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.service-item p {
    color: #666;
    line-height: 1.6;
}

.about {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.about h3 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
    font-weight: bold;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 20px;
    color: #666;
    line-height: 1.8;
    font-size: 16px;
}

.news-preview {
    padding: 80px 0;
    background-color: #fff;
}

.news-preview h3 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
    color: #333;
    font-weight: bold;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-item {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-item h4 a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
}

.news-item h4 a:hover {
    color: #ff4757;
}

.news-item .date {
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
}

.news-item p {
    color: #666;
    line-height: 1.6;
}

.contact-cta {
    background: linear-gradient(135deg, #ff4757, #fd79a8);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.contact-cta h3 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: bold;
}

.contact-cta p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h4,
.footer-links h4,
.footer-contact h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #ff4757;
}

.footer-info p {
    line-height: 1.6;
    color: #ccc;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    text-decoration: none;
    color: #ccc;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: #ff4757;
}

.footer-contact p {
    margin-bottom: 15px;
    color: #ccc;
}

.footer-contact a {
    text-decoration: none;
    color: #ff4757;
    font-weight: bold;
    transition: color 0.3s;
}

.footer-contact a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    text-align: center;
    color: #ccc;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px;
    }

    .logo h1 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 0 10px;
    }

    .hero h2 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        text-align: center;
    }

    .services h3,
    .about h3,
    .news-preview h3,
    .contact-cta h3 {
        font-size: 28px;
    }

    .service-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .services,
    .about,
    .news-preview,
    .contact-cta {
        padding: 60px 0;
    }

    .services h3,
    .about h3,
    .news-preview h3,
    .contact-cta h3 {
        font-size: 24px;
    }

    .service-item,
    .news-item {
        padding: 20px;
    }
}