body {
    background: #f8f8f8;
}

.banner-container {
    background-image: url(/images/banner_manual.jpg?v=20250429165117);
}

.banner-left {
    width: 500px;
}

.main-leftmenu {
    padding-top: 40px;
}

.main-content {
    padding: 50px;
}

.main-content img {
    max-width: 100%;
}

.main-content li {
    list-style: inherit;
}

.main-content ul,
.main-content ol {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.main-content ol {
    margin-left: 20px;
    list-style-type: decimal;
}

.main-content ul {
    margin-left: 20px;
    list-style-type: disc;
}

.btn-wrap {
    position: absolute;
    top: 20px;
    right: 20px;
}

.btn-video {
    display: block;
    height: 32px;
    line-height: 32px;
    text-align: center;
    background: #060879;
    border-radius: 2px;
    font-size: 12px;
    font-weight: 500;
    color: #FFFFFF;
    padding: 0 20px;
    box-sizing: border-box;
}

.img-wrap {
    width: 100%;
}

.img-wrap img {
    display: block;
    width: 100%;
    height: 100%;
}

.video-wrap {
    width: 100%;
    height: 480px;
    margin: 20px auto 30px;
    background: #000;
}

.video-wrap video {
    display: block;
    width: 100%;
    height: 100%;
}

/*移动端*/
@media screen and (min-width: 320px) and (max-width: 750px) {
    body {
        background: #f8f8f8;
    }

    .banner-left {
        bottom: -110px;
        padding: 10px 0 15px;
        width: 80%;
        background: #f8f8f8;
    }

    .menu-wrap {
        padding: 128px 3vw 20px;
        height: auto;
        background: #f8f8f8;
        margin: 0;
    }

    .main-leftmenu-list-item {
        padding: 0 3vw 0 30px;
    }

    .main-leftmenu-list-item.on:before {
        left: 3vw;
    }

    .main-content {
        padding: 20px 3vw 6vw;
        margin: 3vw 4vw 8vw 4vw;
        min-height: 200px !important;
        border-radius: 15px;
    }

    .main {
        margin: 0 auto;
        padding: 0;
    }

    .video-wrap {
        height: 280px;
        margin-top: 0;
    }
}