body {
    font-family: 'Orbitron', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #fff;
}

.header {
    background: linear-gradient(90deg, #0d47a1, #42a5f5);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    padding: 10px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    text-align: center;
}



.container {
    margin: 0 auto;
    padding-right: 20px;
    padding-left: 20px;
    padding-bottom: 20px;
    overflow-y: auto;
    /*display: flex;*/
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    
}

.nav {
    display: flex;
    gap: 20px;
    justify-content: center;
    width: 100%;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

#mobileNav {
    display: none;
}

@media screen and (max-width: 768px) {
    .container {
        flex-direction: column;  /* 垂直排列容器内元素 */
        justify-content: flex-start;
        align-items: center;
        gap: 15px;
    }

    .nav {
        flex-direction: column; /* 垂直排列导航项 */
        gap: 10px; /* 调整导航项间距 */
        width: 100%;
        align-items: center;
    }

    .nav a {
        font-size: 16px;
        padding: 10px;
        text-align: center;
        width: 100%;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 5px;
    }

    #pcNav {
        display: none; /* 隐藏PC端导航 */
    }

    #mobileNav {
        display: flex;  /* 显示移动端导航 */
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 15px;
        width: 100%;
    }
}

@media screen and (max-width: 480px) {
    .logo {
        font-size: 20px; /* 更小的字体 */
    }

    .nav a {
        font-size: 14px; /* 减小字体大小 */
    }
}