/* 设置页面基础字体和流畅排版 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f9f9f9;
}


h1, h2, h3, h4 {
    font-family: 'Georgia', serif;
    margin-top: 0;
}

h1 {
    font-size: 2.5rem;
    color: #2c3e50;
}

h2, h3 {
    color: #e67e22;
}

h4 {
    font-weight: normal;
    color: #e67e22;
}


#wrapper {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 1rem;
    box-sizing: border-box;
}


#navigation {
    padding: 10px 0;
    margin: 20px 0;
    background-color: #2c3e50;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    border-radius: 5px;
}

.navigation666 {
    list-style: none;
}

.navigation666 a {
    text-decoration: none;
    color: #ecf0f1;
    font-weight: bold;
    padding: 8px 12px;
    border-radius: 3px;
    transition: background-color 0.3s ease;
}

.navigation666 a:hover,
.navigation666 a.current {
    background-color: #e67e22;
    color: #fff;
}


#content1, #content2 {
    padding: 1rem;
    box-sizing: border-box;
}

#content1 {
    width: 70%;
    float: left;
}

#content2 {
    width: 30%;
    float: left;
    background-color: #e67e22;
    color: white;
    margin-top: 1rem;
    border-radius: 5px;
}


form input[type="text"], form input[type="submit"], form input[type="reset"] {
    display: block;
    margin: 10px 0;
    padding: 8px;
    font-size: 1rem;
    width: 100%;
    max-width: 400px;
}


@media (max-width: 768px) {
    #content1, #content2 {
        width: 100%;
        float: none;
    }

    body {
        font-size: 0.95rem;
    }

    #navigation {
        flex-direction: column;
        align-items: center;
    }
}