.chat__fv {
  background-image: url(../img/chat/sp/back-image_sp.jpg);
}
@media (min-width: 768px) {
  .chat__fv {
    background-image: url(../img/chat/back-image_pc.jpg);
  }
}

.chat__section {
  padding-top: 32px;
}
@media (min-width: 768px) {
  .chat__section {
    padding-top: 60px;
    margin-top: 90px;
  }
}

.chat__heading {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}
@media (min-width: 768px) {
  .chat__heading {
    font-size: 30px;
  }
}

.chat__step-contents {
  margin-top: 20px;
  padding-block: 40px;
}

.chat__list {
  margin-top: 64px;
  padding: 0 60px 18px;
}

@media (min-width: 768px) {
  .chat__item {
    padding-block: 40px 60px;
  }
}
@media (min-width: 768px) {
  .chat__item:nth-of-type(1) {
    border-bottom: 1px solid #000;
  }
}
.chat__item:nth-of-type(1) .chat__img img {
  width: 82.0289855072%;
  aspect-ratio: 283/36;
}
@media (min-width: 768px) {
  .chat__item:nth-of-type(1) .chat__img img {
    width: 100%;
    margin-top: 24px;
  }
}
.chat__item:nth-of-type(1) .chat__text {
  margin-top: 36px;
}
@media (min-width: 768px) {
  .chat__item:nth-of-type(2) {
    border-bottom: 1px solid #000;
  }
}
.chat__item:nth-of-type(2) .chat__img img {
  width: 66.9565217391%;
  aspect-ratio: 231/132;
}
@media (min-width: 768px) {
  .chat__item:nth-of-type(2) .chat__img img {
    width: 69.3457943925%;
    aspect-ratio: 371/226;
  }
}
.chat__item:nth-of-type(3) .chat__img img {
  width: 42.6086956522%;
  aspect-ratio: 147/158;
}
@media (min-width: 768px) {
  .chat__item:nth-of-type(3) .chat__img img {
    width: 216px;
    aspect-ratio: 216/233;
  }
}
.chat__item:nth-of-type(3) .chat__text:not(:first-child) {
  margin-top: 30px;
}

.chat__step {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
}
@media (min-width: 768px) {
  .chat__step {
    text-align: left;
  }
}
.chat__step .text-lg {
  font-size: 40px;
  font-weight: 500;
  line-height: 1;
  vertical-align: bottom;
}

.chat__area {
  margin-top: 16px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.chat__img {
  width: 100%;
  text-align: center;
}

.chat__text-wrap {
  width: 50.462962963%;
  -ms-flex-negative: 0;
      flex-shrink: 0;
}

.chat__text {
  font-size: 16px;
  font-weight: 500;
}

.chat__bottom {
  padding-block: 16px 160px;
}

.chat__btn {
  margin-top: 14px;
  max-width: 500px;
  margin-inline: auto;
}
@media (min-width: 768px) {
  .chat__btn {
    margin: 30px 0 0 0;
    max-width: 380px;
  }
}
.chat__btn .btn-item {
  display: inline-block;
  width: 100%;
  text-align: center;
}
@media (min-width: 768px) {
  .chat__btn .btn-item {
    text-align: left;
  }
}