body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f8ff;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
}

.main-menu {
    display: flex;
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.main-menu > li {
    position: relative;
    margin-right: 20px;
}

.main-menu > li > a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    padding: 10px 0;
    display: block;
    transition: all 0.3s ease;
}

.main-menu > li:hover > a {
    color: #1e90ff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-radius: 4px;
    padding: 10px 0;
    z-index: 1000;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(-10px);
}

.main-menu > li:hover .submenu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.submenu li {
    list-style-type: none;
}

.submenu li a {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    padding: 8px 20px;
    display: block;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.submenu li a:hover {
    background-color: #f0f0f0;
    color: #1e90ff;
    padding-left: 25px;
}

.banner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

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

footer {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
    margin-top: 40px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.footer-info p {
    margin: 5px 0;
}
.indented-paragraph {
    text-indent: 2em;
}
.qr-code {
    background-color: #fff;
    padding: 10px;
    border-radius: 4px;
}

/* Responsive styles */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px;
    }

    .logo {
        margin-bottom: 10px;
    }

    .main-menu {
        flex-direction: column;
        width: 100%;
    }

    .main-menu > li {
        margin-right: 0;
        margin-bottom: 5px;
        width: 100%;
    }

    .main-menu > li > a {
        padding: 10px;
        border-bottom: 1px solid #eee;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .main-menu > li > a::after {
        content: '\25BC';
        font-size: 12px;
    }

    .submenu {
        position: static;
        display: none;
        box-shadow: none;
        padding: 0;
        background-color: #f9f9f9;
    }

    .main-menu > li:hover .submenu {
        display: none;
    }

    .submenu li a {
        padding: 10px 20px;
    }

    .show-submenu .submenu {
        display: block;
    }

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

    .qr-code {
        margin-top: 20px;
    }
}

/* 通用样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 24px;
    font-weight: bold;
    color: #1e90ff;
    margin-bottom: 20px;
    text-align: center;
}

.button {
    display: inline-block;
    background-color: #1e90ff;
    color: #fff;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #1873cc;
}