.help-main {
    padding: 80px 0 80px;
}
.help-main .left {
    width: 205px;
    float: left;
}
.help-nav,
.help-nav ol {
    list-style: none;
}
.help-nav li,
.help-nav li a {
    font-size: 16px;
}
.help-nav .items + .items {
    margin-top: 2px;
}
.help-nav .items-a,
.help-nav .subitems {
     padding: 10px 30px;
}
.help-nav .items-a {
    padding-right: 55px;
    color: #252525;
    display: block;
    background-color: #eeeeee;
    position: relative;
    font-weight: bold;
}
.help-nav .items-a::after {
    content: "";
    width: 10px;
    height: 100%;
    background: url(data:image/png;base64,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) no-repeat;
    background-size: 100%;
    background-position: center;
    position: absolute;
    right: 35px;
    top: 0;
    transition: all .2s ease-out;
    -moz-transition: all .2s ease-out; /* Firefox 4 */
    -webkit-transition: all .2s ease-out; /* Safari 和 Chrome */
    -o-transition: all .2s ease-out; /* Opera */
}
.help-nav .items.active .items-a::after {
    transform:rotate(180deg);
    -ms-transform:rotate(180deg); 	/* IE 9 */
    -moz-transform:rotate(180deg); 	/* Firefox */
    -webkit-transform:rotate(180deg); /* Safari 和 Chrome */
    -o-transform:rotate(180deg); 	/* Opera */
    /* background-image: url(data:image/png;base64,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); */
}
.help-nav .subitems a {
    color: #666666;
}
.help-nav .subitems a:hover,
.help-nav .subitems.active a {
    color: #e1251b;
}
.help-nav .subitems + .subitems {
    border-top: 2px solid #ededed;
}
.help-nav .items ol {
    display: none;
}
.help-nav .items.active ol {
    display: block;
}
.help-main .right {
    width: 995px;
    min-height: 640px;
    float: right;
    border-left: 2px solid #ededed;
    padding-left: 35px;
}
.help-title {
    font-size: 20px;
    font-weight: bold;
    color: #e1251b;
    padding-bottom: 15px;
    border-bottom: 2px solid #ededed;
}
.help-html {
    padding: 10px 0;
}
.help-html img {
    max-width: 100%;
}