#nka_contents {
  font-family:'メイリオ', 'Meiryo','ＭＳ ゴシック','Hiragino Kaku Gothic ProN','ヒラギノ角ゴ ProN W3',sans-serif;
  font-size: 1.8rem;
}

#nka_contents main{
    position: relative;
}

#opv {
  display: block;
  width: 100.1%;
  opacity: 1;
  position: absolute;
  z-index: 102;
  top: 0;
  left: 0;
}


#nka_contents img{
  display: block;
  width: 100%;
  height: auto;
}


#nka_contents main .main_logo{
  position: absolute;
  z-index: 10;
  width: 50%;
  top: 13.5%;
  left: 26.5%;
}

.main_slide_item {
  position: relative;
  z-index: 1;
  width: auto;
}
.main_slide_box{
  opacity: 0;
}

.main_slide_box_sp{
  opacity: 0;
  display: none;
}

.ML_10{
  margin-left: 10%;
}
.MR_10{
  margin-right: 10%;
}

.sec_area{
  max-width: 1440px;
  margin: 0 auto;
}

.sec01{
  display: flex;
}

.sec01_left, .sec01_right{
  padding: 265px 0 160px;
}
.sec01_left{
  order: 1;
  width: 50%;
}
.sec01_right{
  order: 2;
  margin: 0 auto;
}

.nka_color_logo{
  max-width: 495px;
  width: 80%;
  margin: 0 auto;
}

.sec01_right_txt_1{
  font-size: 2.5rem;
}

.sec01_right_txt_2{
  font-size: 5.6rem;
  line-height: 8.4rem;
}

.sec01_right_txt_2 span{
  font-size: 5.6rem;
  line-height: 8.4rem;
}

.sec01_right_txt_3{
  font-size: 1.8rem;
  line-height: 4.5rem;
}

.sec02, .sec03{
  margin: 230px auto 0;
}

.sec04{
  max-width: 1440px;
  text-align: center;
  margin: 160px auto 0;
}

.sec_ttl{
  font-family: "Roboto", sans-serif;
  font-size: 5.2rem;
}

.sec_ttl_small{
  font-size: 1.8rem;
}

.sec02_item_box{
  display: flex;
  align-items: center;
}

.sec02_img{
  width: 80%;
  max-width: 810px;
}
.sec02_img_pc{
  display: block;
}
.sec02_img_sp{
  display: none;
}

.sec02_item_box_right{
  width: 45%;
  margin: 0 10% 0 2%;
  align-items: center;
  text-align: right;
}

.sec02_txt_box {
  text-align: left;
  margin: 5% 0;
}

.nka_icon_alpha {
  max-width: 72px;
  margin-left: auto;
}

.sec02_txt_01{
  font-size: 2.2rem;
  line-height: 1.4em;
}

.sec02_txt_02{
  font-size: 1.6rem;
  line-height: 1.8em;
}

.sec02_txt_03{
  font-family: "Roboto", sans-serif;
  font-weight: bold;
  font-size: 1.4rem;
  opacity: 0.6;
}

.view_more{
  font-size: 1.8rem;
  color: #fff;
  font-weight: bold;
  background: #d44521;
  max-width: 288px;
  text-align: center;
  border-radius: 10px;
  padding: 18px 0;
}


.sec02 .sec02_item_box .sec02_item_box_right a{
  display: inline-block;
  max-width: 288px;
  width: 100%;
}

.sec02 .sec02_item_box .sec02_item_box_right a:hover{
  opacity: 0.7;
}

.select_btn_box{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2%;
  margin: 0 10%;
}

.select_btn:hover{
  opacity: 0.7;
}

.select_btn_box_sp{
  display: none;
}

.select_btn_on{
  display: none;
}

.select_ttl{
  font-family: "Roboto", sans-serif;
  font-weight: bold;
  font-size: 3.7rem;
  text-align: center;
  margin-bottom: 15px;
}
.select_txt{
  font-size: 1.5rem;
}

.select_item_box {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin: 0 10%;
  margin-bottom: 35px;
}

.select_items {
  width: calc(33.333% - 20px); 
  box-sizing: border-box;
  margin-bottom: 60px;
}

.select_items a:hover{
  opacity: 0.7;
}

.select_items dl dt{
  font-weight: bold;
  font-size: 1.6rem;
  color: #d44521;
}

.select_items dl dd{
  font-family: "Roboto", sans-serif;
  font-weight: bold;
  font-size: 1.4rem;
  color: #000;
}

.view_more{
  font-size: 1.8rem;
  color: #fff;
  font-weight: bold;
  background: #d44521;
  max-width: 288px;
  text-align: center;
  border-radius: 10px;
  padding: 18px 0;
}


.view_more_box a{
  display: block;
  max-width: 288px;
  width: 100%;
  margin: 0 auto;
}

.view_more_box a:hover{
  opacity: 0.7;
}

#nka_contents img.k_mix_pc{
  display: block;
}

#nka_contents img.k_mix_sp{
  display: none;
}

.k_mix_btn{
  width: 80%;
  margin: 0 auto;
}

.k_mix_btn:hover{
  opacity: 0.7;
}


.slider-controls{
  position: absolute;
  z-index: 100;
  bottom: -5%;
  right: 5%;
  max-width: 18px;
  width: 10%;
}

.move_btn, .stop_btn{
  max-width: 65px;
  width: 40%;
}

@media (max-width: 1024px) {
.sec01_right_txt_1 {
  font-size: 2rem;
}
.sec01_right_txt_2{
  font-size: 4.6rem;
  line-height: 7.4rem;
}
.sec01_right_txt_2 span{
  font-size: 4.6rem;
  line-height: 7.4rem;
}
.sp_none{
  display: none;
}
.sec02_img {
  width: 50%;
}
}

@media (max-width: 775px) {
  .select_btn_box_sp{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2%;
  margin: 0 10%;
}

.select_items {
    width: calc(50% - 15px);
  }

.select_btn_box{
  display: none;
}

.select_item_box{
  margin: 0 5% 40px;
}

.sec02_item_box{
  flex-direction: column;
}

.sec01_right_txt_1{
  font-size: 1.5rem;
}

.sec01_right_txt_2{
  font-size: 3.5rem;
}

.sec01_right_txt_2 span{
  font-size: 3.5rem;
}

.sec01_right_txt_3{
  font-size: 1.4rem;
  line-height: 4.1rem;
}
.sec02_img{
  width: 100%;
}
.sec02_img_pc{
  display: none;
}
.sec02_img_sp{
  display: block;
}
.sec02_item_box_right {
  text-align: center;
  width: 100%;
  margin: 0 5%;
  background: #f4f4f4;
  padding-bottom: 100px;
}
.sec02_txt_box {
  margin: 10% 5%;
}
.select_btn_box_sp{
  margin: 0 5%;
}

.nka_icon_alpha{
  display: none;
}
}

@media (max-width: 480px) {
#opv {
  width: 100.5%;
}
  .main_slide_box{
    display: none;
  }
  .main_slide_box_sp{
    display: block;
  }
  main .main_logo {
    width: 80%;
    top: 34.5%;
    left: 12.5%;
}
.sec01{
  flex-direction: column;
}
.sec01_left{
  order: 2;
  width: 100%;
  padding: 100px 0;
}
.sec01_right{
  order: 1;
  padding: 190px 0 100px;
  margin: 0 5%;
}
.sec01_right_txt_1{
  font-size: 1.8rem;
}
.sec01_right_txt_2{
  font-size: 3.8rem;
  line-height: 5.7rem;
}
.sec01_right_txt_2 span{
  font-size: 3.8rem;
  line-height: 5.7rem;
}
.sec01_right_txt_3{
  font-size: 1.5rem;
  line-height: 3.8rem;
}
.sec02, .sec03{
  margin: 110px auto 0;
}
.ML_10{
  margin-left: 5%;
}
.MR_10{
  margin-right: 5%;
}
.sec_ttl{
  font-size: 3.6rem;
}
.sec_ttl_small{
  font-size: 1.3rem;
}

.select_item_box{
  margin: 0 5% 40px;
}

.select_items dl dt{
  font-size: 1.7rem;
}

.select_items dl dd{
  font-size: 1.3rem;
}

.select_items {
    width: 100%; 
  }

#nka_contents img.k_mix_pc{
  display: none;
}

#nka_contents img.k_mix_sp{
  display: block;
}

.k_mix_btn{
  width: 90%;
}
.sec02 .sec02_item_box .sec02_item_box_right a{
  max-width: 900px;
  width: 90%;
}
.view_more_box a{
  max-width: 900px;
  width: 90%;
}
.view_more{
  max-width: 900px;
  width: 100%;
}
.slider-controls{
  width: 3%;
}
}