.main {
    background: #f2f2f2;
}
/* banner start */
.banner img {
    display: block;
    width: 100%;
    min-width: 1140px;
}
/* banner end */

/* nav start */
.nav {
    padding: 20px 0;
}
/* nav end */

/* article-main start */
.article-main {
    padding-bottom: 60px;
    overflow: hidden;
}
.empty {
    position: relative;
    min-height: 800px;
}
.empty img {
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    top: 80px;
}
.article-content {
    float: left;
    padding: 30px;
    width: 850px;
    min-height: 400px;
    background: #fff;
    border-top: solid 3px #e60012;
    box-sizing: border-box;
    -webkit-box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
    -moz-box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
    box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
}

.article-content header h1 {
    padding: 30px 100px;
    font-size: 22px;
    border-bottom: solid 1px #ccc;
    box-sizing: border-box;
    text-align: center;
}
.article-content-main {
    padding: 30px 0;
    min-height: 900px;
    line-height: 28px;
    letter-spacing: 1px;
    border-bottom: solid 1px #ccc;
    box-sizing: border-box;
    overflow: hidden;
}
.article-content-main img {
    display: block;
    margin: auto;
    max-width: 750px;
    padding: 30px 10px;
}
.article-page {
    padding-top: 20px;
}
.article-page a {
    display: block;
}
.article-page-none {
    color: #cecece;
}
.article-page a:last-child {
    margin-top: 20px;
}
.right-nav {
    float: right;
    margin-right: 5px;
    margin-top: 2px;
    padding: 0 15px;
    width: 270px;
    height: 835px;
    border-radius: 2px;
    box-sizing: border-box;
    -webkit-box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
    -moz-box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
    box-shadow: 1px 1px 5px 1px rgba(0,0,0,.1);
    background: #fff;
}
.right-nav h2 {
    padding: 20px 0;
    color: #f00;
    font-size: 16px;
    border-bottom: solid 1px #ccc;
}
.right-nav-main {
    margin-top: -10px;
    padding: 20px 0 ;
    height: 690px;
    overflow: hidden;
    border-bottom: solid 1px #ccc;
}
.right-nav-main a {
    display: block;
    margin-top: 9px;
}
.right-nav-main a img {
    display: block;
    width: 240px;
    height: 130px;
}
.right-nav button {
    margin-top: 10px;
    color: #ccc;
    cursor: pointer;
}
.right-nav button.right {
    float: right;
}
/* aarticle-main end */