.image-wrapper {
    display: block;
    width: 100%;
    border-radius:3px;
}
.image-wrapper2 {
    float: right;
    max-width: 435px;
}
.image-wrapper4 {
    float: left;
    max-width: 435px;
}


.promo-block {
    min-height: 255px;
    background-image: url(images/promo.jpg);
    background-size: cover;
    background-position: center;
}
.promo-block .info {
    background-image: url(images/infobg.png);
    background-position: center bottom;
    background-repeat: no-repeat;
    margin-top: 95px;
    margin-bottom: 65px;
    margin-left: 15px;
    margin-right: 15px;
    background-color: white;
    border-radius: 3px;
    max-width: 540px;
    width: 100%;
    float: left;
    padding: 40px 45px 65px;
}

.snake-block {
    padding-top: 120px;
    background-image: url(images/snake.jpg);
    background-position: center 50px;
    background-repeat: no-repeat;
}

.snake-block .parent_one-block {
    padding: 0 15px;
    width: 100%;
}
.snake-block .parent_one-block:after {
    content: '';
    clear: both;
    display: block;
}
.snake-block .parent_one-block>.one-block {
    float: left;
    width: calc(46% - 30px);
    margin-right: 30px;
}
.snake-block .parent_one-block>.two-block {
    float: left;
    width: 54%;
}
.snake-block .parent_one-block>.two-block .block_title2 {
    margin-top: 130px;
}

.snake-block .parent_two-block {
    padding: 0 15px;
    width: 100%;
    margin-top: 120px;
}
.snake-block .parent_two-block:after {
    content: '';
    clear: both;
    display: block;
}
.snake-block .parent_two-block>.one-block {
    float: left;
    width: calc(54% - 30px);
    margin-right: 30px;
}
.snake-block .parent_two-block>.two-block {
    float: left;
    width: 46%;
}

.snake-block .parent_three-block {
    padding: 0 15px;
    width: 100%;
    margin-top: 130px;
    padding-bottom: 130px;
}
.snake-block .parent_three-block:after {
    content: '';
    clear: both;
    display: block;
}
.snake-block .parent_three-block blockquote {
    max-width: 700px;
}

.block_title {
    font-family: Cambria;
    font-size: 3.0rem;
    line-height: 3.2rem;
    color: #252525;
    font-weight: bold;
}
.block_mini_title {
    font-family: Cambria;
    font-size: 2.4rem;
    line-height: 2.6rem;
    color: #252525;
    font-weight: bold;
}
.mini-line_green {
    width: 86px;
    height: 4px;
    background-color: #65b22f;
}

.video-block {
    display: block;
    background-color: #f9e7b5;
    border-radius: 3px;
}
.video-block img {
    float: left;
    margin-right: 20px;
    border-radius: 3px 0 0 3px;
}
.video-block .info {
    float: left;
    padding-top: 20px;
}
.video-block .info .title {
    font-family: Cambria;
    font-size: 1.8rem;
    line-height: 2.2rem;
    color: #252525;
}
.video-block .info .time {
    font-size: 1.4rem;
    line-height: 1.6rem;
    color: #676767;
}

.icon_box {
    float: left;
}
.icon_box.icon_box_1_one {
    width: calc(50% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_1_two {
    width: 50%;
}
.icon_box.icon_box_1_three {
    width: calc(50% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_1_four {
    width: 50%;
}
.icon_box.icon_box_2_one {
    width: calc(50% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_two {
    width: 50%;
}
.icon_box.icon_box_2_three {
    width: calc(50% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_four {
    width: 50%;
}
.icon_box.icon_box_2_five {
    width: calc(50% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_3_one {
    width: calc(20% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_3_two {
    width: calc(20% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_3_three {
    width: calc(20% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_3_four {
    width: calc(20% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_3_five {
    width: 20%;
}
.icon_box img {
    float: left;
    display: block;
    width: 50px;
    margin-left: 15px;
}
.icon_box.icon_box_1_three img {
    float: left;
    display: block;
    width: 65px;
    margin-left: 0px;
}
.icon_box.icon_box2 img {
    margin-left: 0px;
    width: 50px;
}
.icon_box.icon_box3 img {
    float: none;
    margin-left: 0px;
    width: auto;
    height: 50px;
}
.icon_box .title {
    padding-left: 90px;
    font-family: Cambria;
    font-weight: bold;
    font-size: 1.8rem;
    line-height: 2.2rem;
    color: #252525;
}
.icon_box .desc {
    padding-left: 90px;
    font-size: 1.4rem;
    line-height: 1.8rem;
    color: #676767;
}
.icon_box.icon_box2 .title {
    padding-left: 70px;
}
.icon_box.icon_box2 .desc {
    padding-left: 70px;
}
.icon_box.icon_box3 .title {
    padding-left: 0px;
}
.icon_box.icon_box3 .desc {
    padding-left: 0px;
}




@media (max-width:1280px){
    .snake-block {
        padding-top: 50px;
        background-image: none;
    }
    .snake-block .parent_one-block>.two-block .block_title2 {
        margin-top: 40px;
    }
    .snake-block .parent_two-block {
        margin-top: 30px;
    }
    .snake-block .parent_three-block {
        margin-top: 10px;
        padding-bottom: 40px;
    }
}
@media (max-width:1223px){
    .snake-block .parent_one-block>.one-block {
        float: none;
        width: calc(100% - 0px);
        margin-right: 0px;
    }
    .snake-block .parent_one-block>.two-block {
        float: none;
        width: calc(100% - 0px);
        margin-right: 0px;
    }
    .image-wrapper1 {
        float: left;
        width: calc(34% - 20px);
        margin-right: 20px;
    }
    .image-wrapper2 {
        float: left;
        width: calc(65% - 0px);
    }
    .snake-block .parent_two-block>.one-block {
        float: none;
        width: calc(100% - 0px);
        margin-right: 0px;
    }
    .snake-block .parent_two-block>.two-block {
        float: none;
        width: calc(100% - 0px);
        margin-right: 0px;
    }
    .image-wrapper3 {
        float: left;
        width: calc(36% - 20px);
        margin-right: 20px;
    }
    .image-wrapper4 {
        float: left;
        width: calc(33% - 0px);
    }
}
@media (max-width:1023px){
    .image-wrapper1 {
        float: left;
        width: calc(43% - 20px);
        margin-right: 20px;
    }
    .image-wrapper2 {
        float: left;
        width: calc(57% - 0px);
    }
    
    .icon_box.icon_box_3_one {
        width: calc(50% - 20px);
        margin-right: 20px;
    }
    .icon_box.icon_box_3_two {
        width: calc(50% - 0px);
        margin-right: 0px;
    }
    .icon_box.icon_box_3_three {
        width: calc(50% - 20px);
        margin-right: 20px;
    }
    .icon_box.icon_box_3_four {
        width: calc(50% - 0px);
        margin-right: 0px;
    }
    .icon_box.icon_box_3_five {
        width: 50%;
    }
    .parent_three-block .clearing {
        clear: both;
    }
}

@media (max-width:767px){
    .promo-block .content {
        padding-left: 0px;
        padding-right: 0px;
    }
    .promo-block .content .info {
        margin-left: 0px;
        margin-right: 0px;
        padding: 40px 30px 100px;
    }
    .button-group {
        text-align: center;
    }
    .image-wrapper1 {
        display: none;
    }
    .image-wrapper2 {
        float: none;
        width: 100%;
    }
    .image-wrapper3 {
        float: none;
        width: 100%;
    }
    .image-wrapper4 {
        display: none;
    }
}
@media (max-width:479px){
    .promo-block .content .info {
        margin-top: 0px;
        margin-bottom: 0px;
        margin-left: 0px;
        margin-right: 0px;
        padding: 40px 30px 80px;
    }
    .icon_box {
        float: none;
    }
    .icon_box img{
        display: inline-block;
        float: none;
        margin-left: 0;
    }
    .icon_box:after {
        content: '';
        display: block;
        clear: both;
    }
    .icon_box.icon_box_1_one {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_1_two {
        width: calc(100% - 0px);
        margin-left: 0px;
        text-align: center;
    }
    .icon_box.icon_box_1_three {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_1_four {
        width: calc(100% - 0px);
        margin-left: 0px;
        text-align: center;
    }
    .icon_box.icon_box_2_one {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_2_two {
        width: calc(100% - 0px);
        margin-left: 0px;
        text-align: center;
    }
    .icon_box.icon_box_2_three {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_2_four {
        width: calc(100% - 0px);
        margin-left: 0px;
        text-align: center;
    }
    .icon_box.icon_box_2_five {
        width: calc(100% - 0px);
        margin-left: 0px;
        text-align: center;
    }
    
    .icon_box.icon_box_3_one {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_3_two {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_3_three {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_3_four {
        width: calc(100% - 0px);
        margin-right: 0px;
        text-align: center;
    }
    .icon_box.icon_box_3_five {
        width: 100%;
        text-align: center;
    }
    .icon_box .title{
        padding-left: 0;
    }
    .icon_box .desc{
        padding-left: 0;
    }
    .icon_box.icon_box_1_three img{
        float: none;
        display: inline-block;
    }
    .icon_box.icon_box2 .title{
        padding-left: 0;
    }
    .video-block img {
        float: left;
        margin-right: 10px;
        width: 120px;
    }
    .video-block .info .title {
        font-family: Cambria;
        font-size: 1.4rem;
        line-height: 1.8rem;
        color: #252525;
    }
    .button-group{
        text-align: center;
    }
}