body {
    font-size: 0.1em;
    margin: 0 0 0 0;
}

.content_box {
    width: 100%;
    background-color: yellowgreen;
}

.content_box .content {
    width: 80%;
    height: 80px;
    padding: 0 10% 0 10%;
    background-color: #77827e;
    position: fixed;
}

.content_box .content .welcome_box {
    width: 100%;
    height: 80px;
    background-color: #77827e;
}

.content_box .content .welcome_box .welcome {
    width: 100%;
    height: 20px;
    background-color: #77827e;
    padding: 30px 0 30px 0;
}

.content_box .content .welcome_box .welcome ul {
    font-size: 0.6rem;
    /* background-color: lawngreen; */
}

.content_box .content .welcome_box .welcome ul li {
    width: 33.33%;
    float: left;
    list-style-type: none;
    text-align: center;
    line-height: normal;
}

.content_box .content .welcome_box .welcome ul li .wel_left {
    width: 100%;
    color: #b3b8b6
    /* background-color: lightblue; */
}

.content_box .content .welcome_box .welcome ul li .wel_middle {
    width: 100%;
    color: transparent;
    /* background-color: red; */
}

.content_box .content .welcome_box .welcome ul li .wel_right {
    width: 100%;
    /* background-color: brown; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_left {
    width: 40%;
    float: left;
    /* background-color: blueviolet; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_right {
    /* width: 40%; */
    float: left;
    /* background-color: green; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_right ul {
    width: 100%;
    float: left;
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_right ul li {
    width: 33.33%;
    float: left;
    text-align: left;
    /* background-color: blue; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_right ul li a {
    color: #b3b8b6;
    cursor: pointer;
    text-decoration: none;
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_left .cn_phone_left {
    float: left;
    /* background-color: aquamarine; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_left .cn_phone_left_box {
    width: 187.5px;
    height: 15px;
    margin-right: 10px;
    /* background-color: bisque; */
}

.content_box .content .welcome_box .welcome ul li .wel_right .wel_right_left .cn_phone_left img {
    width: 100%;
}

.nav_box {
    width: 100%;
    height: 80px;
    background-color: #e1944f;
    position: fixed;
    margin-top: 80px;
}

.nav_box .nav {
    width: 80%;
    height: 20px;
    padding: 30px 0px 30px 0px;
    background-color: #e1944f;
    margin-left: 10%;
}

.nav_box .nav .nav_left {
    width: 50%;
    float: left;
    /* background-color: #77827e; */
}

.nav_box .nav .nav_right {
    /* width: 50%; */
    float: right;
    /* background-color: blue; */
}

.nav_box .nav .nav_right ul {
    width: 100%;
    list-style-type: none;
    margin-left: -40px;
}

.nav_box .nav .nav_right ul li {
    float: left;
    text-align: center;
    cursor: pointer;
    padding: 0px 14px 0px 14px;
    /* background-color: yellow; */
    margin-top: -1px;
}

.nav_box .nav .nav_right ul li a {
    text-decoration: none;
    color: white;
}

.nav_box .nav .nav_left .nav_logo_tit {
    width: 100%;
}

.nav_box .nav .nav_left .nav_logo_tit .nav_left_box {
    width: 375px;
    height: 30px;
    margin-right: 10px;
    margin-top: -3px;
    float: left;
}

.nav_box .nav .nav_left .nav_logo_tit .nav_left_box img {
    width: 100%;
    height: 100%;
}

.nav_box .nav .nav_right .nav_right_second {
    height: 250px;
    position: fixed;
    margin-left: 230px;
    margin-top: 15px;
    display: none;
    z-index: 9999;
}

.nav_box .nav .nav_right .nav_right_second ul {
    width: 100px;
}

.nav_box .nav .nav_right .nav_right_second ul li {
    list-style-type: none;
    text-decoration-line: none;
    color: white;
    background-color: #77827e;
    height: 35px;
    padding-top: 15px;
}

.nav_box .nav .nav_right .nav_right_second ul li:hover {
    background-color: #e1944f;
}