#container.main .txt_box strong { font-size: 30px; }
#container.main .txt_box span { font-size: 22px; line-height: 35px; word-break: keep-all; }

.main_introduce_1_text { width: 100%; margin: 0 auto; }
.main_content4 .text_box p br { display:none; }
.main_title h4 { font-size: 30px; line-height: 43px; }
.main_title p { margin-top: 20px; }
.btnMreImg { margin-top:30px; }
.main_content03_bg { height: 250px; }
.main_content03_bg h3 { line-height: 250px; }

#popup {
    width: 78%;
    height: 104vw;
}

#popup .text_box h2 {
    color: #000;
    font-size: 30px;
}

#popup .text_box p {
    margin-top: 50px;
    font-size: 18px;
}

.youtube__btn a {    
    padding: 15px 10px;
    margin-top: 50px;
    width: 100%;
  }

  .youtube__btn a span {  
    font-size: 14px;
  }

  #videos a {
    width: 100%;
    height: 100%;
    flex: initial;
  }

  #videos a h2 {
    font-size: 15px;
    margin-top: 10px;
    color: #000;
    line-height: 1.4;
    word-break: keep-all;
  }