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

body {
    font-family: "Microsoft YaHei", sans-serif;
    background-color: #f5f5f5;
}

.banner {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

nav {
    background-color: #1e90ff;
    padding: 15px 0;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 50px;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 18px;
}

nav a:hover {
    color: #ff4d4d;
}

.content {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.main-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.main-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.text-content {
    padding: 20px;
    background-color: white;
    border-radius: 8px;
}

.text-content h2 {
    color: #333;
    margin-bottom: 15px;
    font-size: 24px;
}

.text-content p {
    color: #666;
    line-height: 1.6;
}

.side-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

footer {
    background-color: #1e90ff;
    color: white;
    text-align: center;
    padding: 15px 0;
    margin-top: 30px;
}

footer p {
    font-size: 14px;
}