@media (max-width: 768px) {
    #img-left{
        left: 0;
    }
    .serious-content p{
        width: 650px;
        font-size: 15px;
    }
}


@media (max-width: 430px) {
    .header-icon{
        gap: 10px;

        padding-inline: 20px 10px;
        padding-block: 10px;
    
        position: fixed;
        left: -10px;
        top: 70%;
    }
    .header-icon i{
        height: 34px;
    
        gap: 5px;
        font-size: 40px;
        line-height: 35px;
    
    }
    .menu-header{
        display: none;
    }

    .header{
        height: 1000px;
    }
    
    .header-main{
        flex-direction: column-reverse;
    }

    .main-contact{
        padding-top: 100px;
    }

    .header-top{
        display: flex;
    }
    #logo{
        width: 62px;
    }

    .serious-content h3{
        font-size: 28px;
    }
    
    .serious-content p{
        width: 350px;
    }

    .download-brochure{
        scale: 90%;
    }
    .frame-user-content h1{
        width: 60%;
        font-size: 25px;
    }
    #car{
        /* scale: 50%; */
        width: 50%;
        right: 0;
        top: 0;
    }

    .user-experiment{
        height: auto;
    }
    .user-top{
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
    }
    .frame-text{
        width: 86%;
        margin-left: 0px;
        height: 175px;
    }
    .user-left, .user-right{
        width: 100%;
    }
    .user-content{
        margin-top: 30px;
    }
    .user-content img{
        width: 110px;
    }
    .content-experiment p{
        font-size: 13px;
    }
    .content-experiment h4{
        font-size: 15px;
        margin-top: 0px;
    }
    .content-experiment{
        margin-left: 65px;
        padding-right: 10px;
        gap: 3px;
        padding-top: 13px;
    }
    .content-experiment h3{
        font-size: 15px;
    }
    .img-user{
        height: auto;
        display: flex;
        justify-content: end;
        align-items: end;
    }
    .frame-right{
        height: 250px;
    }

    .user-bottom{
        flex-direction: column;
    }

    .frame-text-bottom{
        width: auto;
        height: 200px;
        margin-left: 50px;
        background-repeat: no-repeat;
    }
    .bottom-content img{
        position: absolute;
    }

}