.underMV {
  background-image: url(../images/first_bg.jpg);
}

.parts-title {
  padding-top: 60px;
}
.parts-title h2 {
  font-size: 28px;
}

/* first-about */
.first-about {
  padding-bottom: 100px;
}
.first-about .desc h3 {
  margin-bottom: 50px;
  color: #2444b5;
  font-size: 26px;
  font-weight: 600;
}
.first-about .desc p {
  margin-bottom: 35px;
  font-size: 22px;
  font-weight: 600;
}
.first-about .desc p span {
  color: #002daf;
}
.first-about .desc .thinking-card {
  padding: 25px;
  border: solid 1px #cfd5e6;
}
.first-about .desc .thinking-card h4 {
  margin-bottom: 10px;
  color: #001961;
  font-size: 22px;
  font-weight: 600;
}
.first-about .desc .thinking-card p {
  margin-bottom: unset;
  font-size: 18px;
}
.first-about .desc .thinking-card-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.first-about .desc .things-list {
  margin-bottom: 20px;
  padding: 25px;
  background-color: #eff4fa;
  color: #001961;
  font-size: 22px;
  font-weight: 600;
}
.first-about.about2 {
  background-image: url(../images/column_bg.webp);
  background-color: #fbfbfb;
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: contain;
}

/* first-three-things */
.first-three-things {
  padding-bottom: 100px;
  background-color: #f5f5f5;
}
.first-three-things__card {
  background-color: #fff;
  font-weight: 600;
}
.first-three-things__card h3 {
  padding: 35px 5px 35px 30px;
  background-color: #001961;
  color: #fff;
  font-size: 26px;
}
.first-three-things__card p {
  padding: 25px 5px 25px 20px;
  border: solid 1px #d9dde6;
  font-size: 22px;
  letter-spacing: 0;
}
.first-three-things__card p span {
  color: #2444b5;
}
.first-three-things__card-wrapper {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

@media screen and (max-width: 768px) {
  .parts-title {
    padding-top: 30px;
  }
  .parts-title h2 {
    font-size: 20px;
  }
  /* first-about sp */
  .first-about {
    padding-bottom: 50px;
  }
  .first-about .desc h3 {
    margin-bottom: 30px;
    font-size: 18px;
  }
  .first-about .desc p {
    margin-bottom: 20px;
    font-size: 14px;
  }
  .first-about .desc .thinking-card {
    padding: 15px;
  }
  .first-about .desc .thinking-card h4 {
    font-size: 16px;
  }
  .first-about .desc .thinking-card p {
    font-size: 14px;
  }
  .first-about .desc .things-list {
    padding: 15px;
    font-size: 14px;
  }
  /* first-three-things sp */
  .first-three-things {
    padding-bottom: 50px;
  }
  .first-three-things__card h3 {
    padding: 20px 5px 20px 15px;
    font-size: 18px;
  }
  .first-three-things__card p {
    padding: 15px 5px 15px 15px;
    font-size: 14px;
  }
  .first-three-things__card-wrapper {
    gap: 20px;
  }
}
/* ========================================
   FIRST｜Service Guide
======================================== */

.first-service-guide {
  padding: 80px 0;
  background-color: #f5f7fb;
}

.first-service-guide__lead {
  margin: 30px 0 40px;
  font-size: 18px;
  font-weight: 500;
  line-height: 2;
}

.first-service-guide__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.first-service-guide__card {
  display: flex;
  flex-direction: column;
  padding: 35px 30px;
  background-color: #fff;
  border: solid 1px #d9dde6;
}

.first-service-guide__card > small {
  margin-bottom: 7px;
  color: #235dc9;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
}

.first-service-guide__card h3 {
  margin-bottom: 18px;
  padding-bottom: 15px;
  border-bottom: solid 1px #d9dde6;
  color: #001961;
  font-size: 24px;
  font-weight: 600;
}

.first-service-guide__card .catch {
  margin-bottom: 15px;
  color: #001961;
  font-size: 17px;
  font-weight: 600;
}

.first-service-guide__card p {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.9;
}

.first-service-guide__card .parts-button {
  margin-top: auto;
  padding-top: 30px;
}

.first-service-guide__note {
  margin-top: 25px;
  font-size: 13px;
  line-height: 1.8;
}


/* SP */

@media screen and (max-width: 768px) {

  .first-service-guide {
    padding: 50px 0;
  }

  .first-service-guide__lead {
    margin: 25px 0 30px;
    font-size: 14px;
    line-height: 1.9;
  }

  .first-service-guide__cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .first-service-guide__card {
    padding: 28px 20px;
  }

  .first-service-guide__card h3 {
    font-size: 20px;
  }

  .first-service-guide__card .catch {
    font-size: 16px;
  }

  .first-service-guide__card p {
    font-size: 14px;
  }

  .first-service-guide__note {
    font-size: 12px;
  }

}