@media screen and (max-width: 400px) {
    
    .blog_sec .blog_head {
        margin-top: 60px;
    }
    
    

    .news_sec {
        margin-top: 60px;
    }

.blog_sec .blog_head .blog_text {
    width: 100%;
}
    
    .slide {
        margin-top: 50px;
    }
    
    .cs_container .menu_logo {
        width: 100%;
    }
    
    .features_page {
        margin-top: 70px;
    }
    
    .main_content .itmes .item_col {
        width: 100%;
        margin: 0;
    }
    
    .contact .contact_row .form_site .add_form .form_group .form_control .input_field {
        width: 100%;
        margin: 10px 0;
    }
    
    .contact .contact_row .form_site .add_txt {
        width: 100%;
    }
    
    .contact .contact_row .form_site .add_form {
        width: 100%;
    }
    
    .slide .slide_area {
        background-size: 100% 100%;
    }
    
    .slide .slide_content .slide_video {
        position: relative;
        width: 100% !important;
        height: 220px !important;
        background: none;
        margin-top: 70px;
    }
    
    .slide .slide_content .slide_video .slide_video_area {
        width: 100%;
        height: 100% !important;
        float: left;
        margin-left: 0;
        margin-top: 0;
    }
    
    
    
    .news .items .item .cn_news_left {
        float: right;
        margin-left: 0;
    }
    
    .news .items .item .content {
        position: relative;
        width: 100%;
        margin-top: 50px;
    }
    
    .news .items .item .im_news_right {
        float: left;
        margin-bottom: 20px;
    }
    
    .news .items .item .img {
        width: 100%;
        height: auto;
        overflow: hidden;
    }
    
    .news .items .item .cn_news_right {
        left: 0;
        margin-left: 0;
        float: left;
    }
    
    .vote {
        width: 100%;
    }

    .footer {
        margin-bottom: 80px;
    }
}

@media screen and (min-width: 401px) and (max-width: 749px) {
    
    .slide .slide_area {
        background-size: 100% 100%;
    }
    
    .slide .slide_content .slide_video {
        position: relative;
        width: 100% !important;
        height: 220px !important;
        background: none;
        margin-top: 70px;
    }
    
    .slide .slide_content .slide_video .slide_video_area {
        width: 100%;
        height: 100% !important;
        float: left;
        margin-left: 0;
        margin-top: 0;
    }
    
    .main_content .itmes .item_col {
        width: 100%;
        margin: 0;
    }
    
    .news .items .item .cn_news_left {
        float: right;
        margin-left: 0;
    }
    
    .news .items .item .content {
        position: relative;
        width: 100%;
        margin-top: 50px;
    }
    
    .news .items .item .im_news_right {
        float: left;
        margin-bottom: 20px;
    }
    
    .news .items .item .img {
        width: 100%;
        height: auto;
        overflow: hidden;
    }
    
    .news .items .item .cn_news_right {
        left: 0;
        margin-left: 0;
        float: left;
    }
    
    .vote {
        width: 100%;
    }
    
    
    .contact .contact_row .form_site .add_form .form_group .form_control .input_field {
        width: 47%;
    }
    
    .contact .contact_row .form_site .add_txt {
        width: 100%;
    }
    
    .contact .contact_row .form_site .add_form {
        width: 100%;
    }

    .footer {
        margin-bottom: 60px;
    }
}

@media screen and (min-width: 750px) and (max-width: 992px) {
    
    .main_content .itmes .item_col {
        width: 350px;
        margin: 20px 0;
        margin-left: 20px;
        float: left;
    }
    .main_content .itmes .item_col:last-child {
    width: 100%;
    float: left;
        margin: 0;
}
    
    
    
    .contact .contact_row .form_site .add_form .form_group .form_control .input_field {
        width: 45%;
    }
}

@media screen and (min-width: 993px) and (max-width: 1199px) {
    
    .main_content .itmes .item_col {
        width: 286px;
    }
    
    .contact .contact_row .form_site .add_form .form_group .form_control .input_field {
        width: 47%;
    }
}