.image-wrapper {
    display: block;
    width: 100%;
    border-radius:3px;
}

.image-wrapper3 {
    max-width: 340px;
    float: right;
}

.image-wrapper4 {
    max-width: 460px;
    float: right;
}

.block_title2 {
    margin-top: 160px;
}

.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 115px;
}

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

.snake-block .parent_one-block {
    width: 100%;
}
.snake-block .parent_one-block:after {
    content: '';
    clear: both;
    display: block;
}
.snake-block .parent_one-block>.one-block {
    float: left;
    width: calc(51% - 30px);
    margin-right: 30px;
}
.snake-block .parent_one-block>.two-block {
    float: left;
    width: 49%;
}

.snake-block .parent_two-block {
    width: 100%;
    margin-top: 120px;
    padding-bottom: 50px;
}
.snake-block .parent_two-block:after {
    content: '';
    clear: both;
    display: block;
}
.snake-block .parent_two-block>.one-block {
    float: left;
    width: calc(43% - 30px);
    margin-right: 30px;
}
.snake-block .parent_two-block>.two-block {
    float: left;
    width: 57%;
}

.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;
}
.block_mini_mini_title {
    font-size: 1.6rem;
    line-height: 1.8rem;
    color: #000000;
    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;
}
.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;
}


.pic_list {
    
}
.pic_list .img {
    position: relative;
    background-size: cover;
    height: 190px;
    border-bottom: #ffc963 4px solid;
    border-radius: 3px 3px 0 0;
}
.pic_list .img .num {
    position: absolute;
    bottom: 0;
    left: 0;
    font-family: Cambria;
    font-weight: bold;
    font-size: 4.2rem;
    line-height: 3rem;
    color: #ffc963;
    //text-shadow: 0 0 2px rgba(0,0,0,0.3);
}
.pic_list .title {
    font-family: Cambria;
    font-weight: bold;
    font-size: 1.8rem;
    line-height: 2.2rem;
    color: #252525;
}
.pic_list .desc {
    font-size: 1.4rem;
    line-height: 1.8rem;
    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(25% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_two {
    width: calc(25% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_three {
    width: calc(25% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_four {
    width: 25%;
}
.icon_box.icon_box_2_five {
    width: calc(25% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_six {
    width: calc(25% - 20px);
    margin-right: 20px;
}
.icon_box.icon_box_2_seven {
    width: 25%;
}
.icon_box img {
    display: block;
    height: 50px;
}
.icon_box .title {
    font-family: Cambria;
    font-weight: bold;
    font-size: 1.8rem;
    line-height: 2.2rem;
    color: #252525;
}
.icon_box .desc {
    font-size: 1.4rem;
    line-height: 1.8rem;
    color: #676767;
}


@media (max-width:1280px) {
    .snake-block {
        padding-top: 50px;
        background-image: none;
    }
    .snake-block .parent_two-block {
        margin-top: 40px;
        padding-bottom: 40px;
    }
    .block_title2 {
        margin-top: 30px;
    }
}
@media (max-width:1223px) {
}
@media (max-width:1023px) {
    .snake-block .parent_one-block>.one-block {
        display: none;
        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;
    }
    .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-wrapper4 {
        display: none;
    }
}
@media (max-width:767px) {
    .image-wrapper1 {
    }
    .image-wrapper2 {
        display: none;
    }
    .image-wrapper3 {
        display: none;
    }
    .snake-block .parent_one-block>.one-block {
        display: block;
    }
    .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;
    }
    .icon_box.icon_box_1_one, .icon_box.icon_box_1_two, .icon_box.icon_box_1_three, .icon_box.icon_box_1_four{
        width: 100%;
        text-align: center;
    }
    .icon_box.icon_box_1_one img, .icon_box.icon_box_1_two img, .icon_box.icon_box_1_three img, .icon_box.icon_box_1_four img{
        display: inline-block;
    }
}
@media (max-width:479px) {
    .promo-block .content .info {
        margin-top: 0px;
        margin-bottom: 0px;
        margin-left: 0px;
        margin-right: 0px;
        padding: 40px 30px 80px;
    }
    .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;
    }
    
    .icon_box {
        float: none;
    }
    .icon_box img{
        display: inline-block;
    }
    .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-right: 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-right: 0px;
        text-align: center;
    }
    h1, .h1 {
        font-size: 3.3rem;
        line-height: 3.5rem;
    }
}