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

body {
    background-color: #f5f7fa;
    font-family: "Microsoft YaHei", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.nav-container {
    background-color: #ffffff;
    padding: 40px 60px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    color: #2d3748;
    margin-bottom: 30px;
    font-size: 28px;
}

.nav-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.nav-link {
    display: inline-block;
    padding: 12px 24px;
    background-color: #3b82f6;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

.nav-link:hover {
    background-color: #2563eb;
}