body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
    border: 0;
}

html, body {
    color: #000;
    width: 100%;
    height: 100%;
    background-color: white !important;
}

body, button, input, select, textarea {
    font-family: 'Microsoft Yahei', '微软雅黑', \5FAE\8F6F\96C5\9ED1, '宋体', \5b8b\4f53, arial, 'Hiragino Sans GB', Tahoma, Arial, Helvetica, serif;
}

ul, ol, li, dl, dd, dt {
    list-style: none;
}

em {
    font-style: normal;
}

a {
    text-decoration: none;
    cursor: pointer;
}

a:hover {
    text-decoration: none;
}

/*连续英文、数字换行*/
.wordwrap {
    word-break: break-all;
    word-wrap: break-word;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
    background-color: #F5F5F5;
}

/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    background-color: #F5F5F5;
}

/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #555;
}

.origin {
    padding-top: 118px;
    width: 100%;
    height: calc(100% - 118px);
}

.roof_area {
    /*padding: 0 2%;*/
    width: 100%;
    height: 118px;
    /*background-color: #03acd2;*/
    background-color: #4B6ECA;
    /*position: relative;*/
    position: fixed;
    top: 0;
    z-index: 99;
}

.roof_logo {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -36px;
    margin-left: -73px;
    width: 146px;
    height: 72px;
}

.nav_item {
    width: 49px;
    padding: 20px 10px;
    /*height: 40px;*/
}

.nav_item_icon {
    width: 49px;
    height: 49px;
}

.nav_item_text {
    font-size: 20px;
    color: white;
    letter-spacing: 4px;
}

.nav_menuBtn_select {
    background-color: white;
}

.nav_menuBtn_select img {
    content: url('../images/menu_ico_01.png');
}

.nav_menuBtn_select div {
    color: #4B6ECA !important;
}

.nav_genre_area {
    position: absolute;
    top: 118px;
    left: 0;
    width: calc(100vw);
    height: calc(100vh - 118px);
    background-color: rgba(255, 255, 255, 0.8);
    display: none;
}

.genre_context {
    margin: 0 4%;
    width: 92%;
    height: calc(100% - 116px);
    overflow: auto;
}

.genre_item {
    margin-top: 40px;
    width: calc(100% / 3);
    text-align: center;
}

.genre_text {
    font-size: 24px;
    color: #565656;
}

.genre_bar {
    padding: 0 4%;
    width: 92%;
    height: 116px;
    background-color: #4B6ECA;
}

.genre_barItem {
    width: calc(100% / 5);
    text-align: center;
    color: white;
    font-size: 24px;
    padding: 14px 0;
}

.nav_product_area {
    position: absolute;
    top: 136px;
    left: 3%;
    width: 94%;
    /*min-height: 100px;*/
    max-height: calc(100vh - 200px);
    background-color: rgba(255, 255, 255, 0.8);
    border: 1px solid #4B6ECA;
    padding-bottom: 20px;
    display: none;
}

.nav_product_panel {
    width: 100%;
    max-height: calc(100vh - 180px);
    overflow: auto;
}

.nav_product_heap {
    padding: 0 4%;
    width: 92%;
}

.product_heap_mass {
    overflow: hidden;
}

.product_heap_item {
    font-size: 28px;
    color: black;
    width: 50%;
    /*height: 70px;*/
    margin: 12px 0;
}

.product_heap_title {
    width: 100%;
    height: 72px;
    line-height: 72px;
    font-size: 32px;
    color: #4B6ECA;
    border-bottom: 1px solid #4B6ECA;
}

.nav_product_corner {
    position: absolute;
    top: -18px;
    left: 60px;
    width: 36px;
    height: 19px;
}

.nav_search_area {
    position: absolute;
    top: 118px;
    left: 0;
    width: 100vw;
    height: calc(100vh - 118px);
    background-color: rgba(255, 255, 255, 0.8);
    display: none;
}

.nav_search_bar {
    width: 100%;
    height: 102px;
    background-color: white;
    border-bottom: 1px solid #03acd2;
}

.nav_search_import {
    margin-top: 24px;
    margin-left: 26px;
    width: 525px;
    height: 48px;
    line-height: 48px;
    border: 2px solid #03acd2;
    font-size: 28px;
    padding: 0 20px;
}

.nav_search_btn {
    position: relative;
    padding: 0 15px;
    width: 98px;
    height: 52px;
    background-color: #03acd2;
    color: white;
    text-align: right;
    line-height: 52px;
    font-size: 28px;
    display: inline-block;
    margin-left: -8px;
}

.nav_search_icon {
    position: absolute;
    top: 5px;
    left: 12px;
    width: 40px;
    height: 40px;
}