/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background-color: #333;
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

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

.nav-links li {
    margin-left: 2rem;
}

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

.nav-links a:hover {
    color: #f4f4f4;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 2px 0;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    background-color: #f4f4f4;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
}

/* 关于我 */
.about {
    padding: 4rem 0;
}

.about h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.about-content img {
    border-radius: 50%;
    width: 200px;
    height: 200px;
    object-fit: cover;
}

.about-content p {
    flex: 1;
    font-size: 1.1rem;
}

/* 文章 */
.posts {
    padding: 4rem 0;
    background-color: #f9f9f9;
}

.posts h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.post-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.post-card:hover {
    transform: translateY(-5px);
}

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

.post-card h3 {
    padding: 1rem;
    font-size: 1.3rem;
}

.post-card p {
    padding: 0 1rem 1rem;
    color: #666;
}

.read-more {
    display: inline-block;
    margin: 0 1rem 1rem;
    padding: 0.5rem 1rem;
    background-color: #333;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.read-more:hover {
    background-color: #555;
}

/* 联系我 */
.contact {
    padding: 4rem 0;
}

.contact h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

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

.contact-form button {
    padding: 1rem;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.contact-form button:hover {
    background-color: #555;
}

/* 页脚 */
footer {
    background-color: #333;
    color: #fff;
    padding: 2rem 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #333;
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 0.5rem 0;
    }

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

    .about-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .about,
    .posts,
    .contact {
        padding: 2rem 0;
    }

    .about h2,
    .posts h2,
    .contact h2 {
        font-size: 1.5rem;
    }
}