@charset "UTF-8";

* {
    padding: 0;
    margin: 0;
    font-size: 16px;
    font-family: "Helvetica Neue", serif;

}

/* 定义好背景 */

/* 配置头部导航 */

.head {
    width: 100vw;
    height: 80px;

    border-bottom: 2px #efefef solid;
}

.menu-logo {
    float: left;
    padding-left: 40px;
}

.menu-logo .logo {
    width: 100px;
    height: 80px;
}

/* logo */

/* menu */
.menu-item {
    padding-right: 40px;
}

.menu-item ul {
    float: right;
    list-style: none;
    display: block;
}

.menu-item ul li {
    margin: 0 30px;
    float: left;
    line-height: 80px;
}

.menu-item ul li a {
    color: #222222;
    text-decoration: none;
}

/* checkbox display none*/
#toggler{
    display: none;
}
@media all and (max-width: 762px) {
    /* 汉堡导航样式 */
    .check_button{
        width: 40px;
        height: 40px;
        display: block;
        position: relative;
        float: right;
        right: 45px;
        top: 20px;
        text-align: center;
        cursor: pointer;
    }

    #toggler{
        display: none;
    }

    /* 设置汉堡导航的导航条 */

    .check_button span{
        display: block;
        height: 2px;
        background-color: #000;
        position: relative;
        transition: transform .9s ease-in-out;
        top: 0;
        text-align: center;
    }

    .check_button span:nth-child(2){
        margin-top: 7px;
    }
    .check_button span:nth-child(3){
        margin-top: 7px;
    }
    .check_button span:nth-child(4){
        margin-top: 7px;
    }

    #toggler:checked + label .check_button span:nth-child(1){
        top: 10px;
        transition: top .2s ;
        /*ease-in-out, opacity .8s ease-in-out .4s;*/
        height: 1px;
    }
    #toggler:checked + label .check_button span:nth-child(2){
        top: 6px;
        transition: top .3s ;
        /*ease-in-out, opacity .8s ease-in-out .4s;*/
        height: 1px;
    }
    #toggler:checked + label .check_button span:nth-child(3){
        top: 3px;
        transition: top .4s ;
        /*ease-in-out, opacity .8s ease-in-out .4s;*/
        height: 2px;
    }
    #toggler:checked + label .check_button span:nth-child(4){
        top: 0;
        transition: top .6s ;
        /*ease-in-out, opacity .4s ease-in-out .4s;*/
        height: 2px;
    }

    .menu-item{
        background-color: rgba(239,239,239,0.92);
        width: 100%;
        height: 100vh;
        position: absolute;
        top: 82px;
        left: 0;
        transform: scaleY(0);
        transition: transform .7s ease-in-out, opacity .2s ease-in-out .2s;
        transform-origin: 50% 0;
        opacity: 0;
        z-index: 100;
        padding: 40px 4%;
    }

    #toggler:checked ~ .menu-item{
        transform: scaleY(1);
        opacity: 1;
    }

/*  定义汉堡导航后的结果。  */
    .menu-list{
        position: fixed;
        left: 0;
    }
    .menu-list li{
        width: 300px;
        display: block;
        float: left;
        border-bottom: 3px #000 solid;
    }
}

@media (max-width: 1200px) {

}


/* 定义移动样式 */
.man{
    background-color: #f6f6f6;
    margin: 0 auto;
    width: 90%;
    height: 60%;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,.12%);
}
.images{
    height: 200px;
}

.images img{
    width: 100%;
    display: block;
    height: inherit;
}

.title_content_box h1{
    margin: 10px;
    padding: 5px;
    display: inline-block;
    font-family: "Helvetica Neue", serif;
    font-size: 40px;
    border-bottom: 1px #000000 solid;
}
[id="text"] p{
    margin: 0 10px;
    font-weight: bold;
}

/* 定义PC样式 */