#main .main_visual .main_img img {
  filter: brightness(0.5);
}
#main .main_visual .main_banner_logo img {
  filter: none;
}

.dot_txt {
  margin-left: 14px;
}
.dot_txt .dot {
  font-size: 15px;
  margin: 10px 0;
  position: relative;
  color: #6b6b6b;
}
.dot_txt .dot::before {
  content: "";
  position: absolute;
  left: -15px;
  top: 8px;
  width: 5px;
  height: 5px;
  background: #6b6b6b;
  border-radius: 50%;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
}

.content1 {
  padding: 100px 0;
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(../img/brain_bg.jpg) no-repeat center center/cover;
  color: #fff;
}
.content1 .inner p {
  font-size: 0.9375rem;
  line-height: 2;
  margin: 20px 0;
  max-width: unset;
  
}
.content1 .inner .in_btn a {
  background: #fff;
  color: #29ABE2;
  display: block;
  font-weight: 700;
  font-size: 1.125rem;
  padding: 10px 20px;
  border-radius: 20px;
  margin-top: 20px;
  text-align: center;
  max-width: 180px;
}
.content1 .iframe_box {
  margin-top: 40px;
}
.content1 .iframe_box iframe {
  width: 100%;
  height: 100%;
  aspect-ratio: 16/9;
}

.content2 {
  padding: 100px 0;
}
.content2 .inner h3 {
  font-size: 1.5625rem;
  margin: 40px 0;
}
.content2 .inner .box_wrap {
  display: flex;
  gap: 22.5px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.content2 .inner .box_wrap .box {
  width: calc(33.3333333333% - 15px);
  margin-bottom: 20px;
}
.content2 .inner .box_wrap .box .img_box {
  border-radius: 15px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}
.content2 .inner .box_wrap .box .img_box img {
  width: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 614/369;
}
.content2 .inner .box_wrap .box .txt_box {
  text-align: center;
  padding: 10px 0;
}
.content2 .inner p.txt {
  margin: 20px 0;
  font-size: 0.9375rem;
  line-height: 2;
  /* max-width: 575px; */
}
.content2 .inner img {
  width: 100%;
}

.content3 {
  padding: 100px 0;
  background: #29ABE2;
  color: #fff;
}
.content3 .product_title {
  margin: 40px 0;
}
.content3 .dot {
  color: #fff;
  font-weight: 700;
}
.content3 .dot::before {
  background: #fff;
}
.content3 .product_box {
  display: flex;
  gap: 60px;
  flex-direction: column;
}
.content3 .product_box .left {
  width: calc(66.6666666667% - 10px);
}
.content3 .product_box .left .box_img {
  border-radius: 15px;
  overflow: hidden;
}
.content3 .product_box .right .img_box {
  border-radius: 15px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}
.content3 .product_box .right .img_box img {
  aspect-ratio: 1160/641;
}
.content3 .product_box img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.content3 .product_box .box_wrap {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}
.content3 .product_box .box_wrap .box {
  width: calc(50% - 10px);
}
.content3 .product_box .box_wrap .box img {
  aspect-ratio: 372/371;
}
.content3 .product_box .box_wrap .box p {
  text-align: center;
  padding: 20px 0;
  height: 40px;
}

.content4 {
  padding: 100px 0;
}
.content4 .inner p {
  margin: 20px 0;
  font-size: 0.9375rem;
  line-height: 2;
  /* max-width: 445px; */
}
.content4 .big_inner {
  padding: 0;
}
.content4 .big_inner .review {
  position: relative;
  padding: 0 50px;
  margin-top: 60px;
}
.content4 .big_inner .review .review_img {
  border-radius: 15px;
  overflow: hidden;
}
.content4 .big_inner .review .review_img img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 480/360;
}
.content4 .swiper-button-next:after, .content4 .swiper-button-prev:after {
  color: #000;
  font-size: 1.875rem;
}

.content6 {
  padding: 100px 0;
  background: #29ABE2;
  color: #fff;
}

.content6 .inner .left a {

  background: #fff;
  color: #29ABE2;
 
}

.content6 .right {
  width: 50%;
  display: flex;
  justify-content: end;
}
.content6 .right_img {
  width: 100%;
  max-width: 250px;
}
.content6 .right_img img {
  width: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 580/317;
}

@media screen and (max-width: 950px) {
  #main .content3 .product_box {
    flex-direction: column;
  }
  #main .content3 .product_box .left {
    width: 100%;
  }
  #main .content3 .product_box .left .box_wrap {
    justify-content: center;
  }
  #main .content3 .product_box .left .box_wrap .box {
    max-width: 300px;
  }
  #main .content3 .product_box .right {
    margin: 0 auto;
  }
}
@media screen and (max-width: 650px) {
  #main .content1 .inner h4 {
    font-size: 1.875rem;
  }
  #main .content2 h4 {
    font-size: 1.875rem;
  }
  #main .content6 .inner {
    flex-direction: column;
  }
  #main .content6 .inner .left {
    display: flex;
    gap: 10px;
    align-items: center;
  }
  #main .content6 .inner .left a {
    margin-top: 0;
    height: 60px;
  }
  #main .content6 .inner .right {
    width: 100%;
  }
  #main .content6 .inner .right .right_img {
    margin-top: 20px;
  }
}
@media screen and (max-width: 550px) {
  #main .content2 .inner .box_wrap .box {
    width: 90%;
    margin: 0 auto;
  }
}
@media screen and (max-width: 460px) {
  #main .content1 .inner h4 {
    font-size: 1.5625rem;
  }
  #main .content2 h4 {
    font-size: 1.5625rem;
  }
  #main .content6 .inner .left {
    flex-direction: column;
    gap: 30px;
  }
  #main .content6 .inner .left a {
    margin: 10px 0;
  }
  #main .content6 .inner .left .left_flex_box p:nth-of-type(1) {
    margin: 10px 0;
  }
  #main .content6 .inner .right {
    min-width: 300px;
    justify-content: center;
  }
}