@media screen and (max-width: 640px) {

    html
    {
      position: relative;
      padding: 0;
      margin: 0;
      font-size: 29px; 
      background: white;  
      color:#000; 
      font-family: 'GTE', sans-serif;
      max-width: 640px; 
      min-width: unset;
      width: 640px;
      min-height: unset;
      height: auto;
    }
    
    body 
    {
        margin: 0;
        padding: 0;
        background-color: white;
        height: auto;
        min-width: unset;
      overflow-x: hidden;

    }
    
    section 
    {
        max-width: 640px;
        width: 640px;
    }

    .block-content
    {
        width: 640px;
        max-width: 640px;
        height: 100%;
        margin: auto;
        position: relative;
        margin-top: 0;
        padding: 0 20px;
    
    }

    .block1 
    {
        height: 1100px; 
        background: url(../img/block1.jpg?) no-repeat scroll -550px -1px white;    
    }

    .block1 .lamp {
        top: 20px;
        left: 347px;
    }

    .block1 .title
    {
        width: 500px;
        font-size: 38px;
        top: 470px;
        left: -10px;
    }

    .block1 .frame
    {
        top: 50px;
    }

    .block1 h1
    {
        font-size: 48px;
        line-height: 54px;
    }

    .block1 .frame p {
        font-size: 31px;
        line-height: normal;
        width: 220px;
        top: 230px;
        position: absolute;
    }    

    .block1 h2
    {
        top: 980px;
        left: 40px;
    }


    .block1 .button
    {
        width: 90%;
        top: 880px;
        left: 40px;
    }

    .block1 .desc {
        position: absolute;
        width: 560px;
        top: 600px;
        left: 40px;
        font-size: 26px;
    }

    .block1 .ra
    {
        display: none;
    }

    .block2 {
        background: url(../img/block2.jpg?) no-repeat scroll -1400px 1px white;
        height: 764px;
        background-size: cover;
    }

    .block2 .c
    {
        display: none;
    }

    .block2 .t {
        float: initial;
        margin: 60px 40px 0 40px;
        width: 520px;
    }

    .block2 h2
    {
        left: 40px;
        font-size: 28px;
        line-height: inherit;
    }

    .block3 {
        height: 180px;
    }

    .block3 img {
        float: none;
        width: 600px;
    }

    .block4 {
        background: url(../img/block4.jpg?) no-repeat scroll -1200px -1px white;
        height: 900px;
        background-size: cover;
    }

    .block4 h3
    {
        left: 40px;
    }

    .block_form {
        background: url(../img/block_form.jpg?) no-repeat scroll center -1px white;
        height: 800px;
        margin-top: -50px;
        background-size: cover;
    }

    .block_form .r {
        position: absolute;
        left: 40px;
        top: -746px;
        width: 600px;
    }

    .block_form h2 {
        left: 40px;
        font-size: 30px;
        top: 52px;
        line-height: inherit;
    }


    .block_form .download
    {
        left: 344px;
        top: 50px;
    }

    .block_form .desc
    {
        width: 600px;
    }

    .block_form h3
    {
        font-size: 33px;
        left: 40px;
        top: 200px;
    }

    .block_form .desc {
        width: 540px;
        left: 40px;
        font-size: 22px;
        line-height: inherit;
        top: 260px;
    }

    #nav_form form {
        z-index: 2;
        position: inherit;
        position: absolute;
        top: 354px;
        left: 40px;
    }

    form input
    {
        height: 60px;
        border: 1px solid #f2f2f2;
        padding: 0 13px;
        font-size: 24px;
        color: black;
        width: 567px;
    }

    form input[type='submit'] {
        width: 570px;
        left: 0;
        bottom: 0px;
        position: relative;
    }    


    form input::placeholder
    {
        color: black;
        font-size: 24px;
    }


    form p {
        color: white;
        text-align: left;
        float: left;
        margin-top: 30px;
    }    

    form input[type='submit'] {
        width: 568px;
        font-size: 24px;
    }

    .et {
        position: absolute;
        top: 165px;
        left: 40px;
        font-size: 24px;
    }

}