/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 导航栏样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #4a6cf7;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #4a6cf7;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #4a6cf7, #6a11cb);
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    background-color: #fff;
    color: #4a6cf7;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.3s;
}

.cta-button:hover {
    transform: scale(1.05);
}

/* 项目部分样式 */
.projects {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.projects h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}

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

.project-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-card h3 {
    padding: 20px 20px 10px;
    font-size: 1.3rem;
}

.project-card p {
    padding: 0 20px 20px;
    color: #666;
}

.project-link {
    display: block;
    text-align: center;
    padding: 10px 20px;
    margin: 0 20px 20px;
    background-color: #4a6cf7;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.project-link:hover {
    background-color: #3a5be0;
}

/* 关于部分样式 */
.about {
    padding: 100px 0;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.about p {
    max-width: 800px;
    margin: 0 auto 20px;
    font-size: 1.1rem;
    text-align: center;
    color: #666;
}

/* 联系部分样式 */
.contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.contact p {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 50px;
}

.contact-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    background-color: #4a6cf7;
    color: white;
    padding: 15px;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #3a5be0;
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: white;
    padding: 50px 0 20px;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: white;
    text-decoration: none;
}

.social-links a:hover {
    color: #4a6cf7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }

    .nav-links {
        margin-top: 20px;
    }

    .nav-links li {
        margin: 0 10px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    footer .container {
        flex-direction: column;
        gap: 20px;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }
}