/*-------------------------------------------
B.F.System紹介セクション
-------------------------------------------*/
.sec-bf-system {
  margin: 0;
}
.sec-bf-system__description-container {
  background-color: var(--main-bg-color);
}
.sec-bf-system__description-inner {
  padding: 60px 20px 50px;
  max-width: calc(100vw - 40px);
  margin: 0 auto;
}
.sec-bf-system__header-container {
  margin: 0 0 20px 0;
  text-align: center;
}
.sec-bf-system__sub-header {
  margin: 0 0 20px 0;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.8;
  color: var(--main-font-color);
  text-align: justify;
}
.sec-bf-system__header {
  margin: 0 0 40px 0;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--main-font-color);
}
.sec-bf-system__header-text {
  margin: 0 0 50px 0;
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 2.0;
  text-align: justify;
  letter-spacing: 0.1rem;
  color: var(--main-font-color);
  font-feature-settings: "pwid" 0, "fwid" 1;
  text-align: left;
}
.sec-bf-system__description-spec-container {
  margin: 0 0 30px 0;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  justify-content: center;
  gap: 30px;
}
.sec-bf-system__description-spec {
  width: calc(100vw - 40px);
}
.sec-bf-system__description-spec-img-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
}
.sec-bf-system__description-spec-sub-header {
  margin: 0 0 10px 0;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--main-font-color);
}
.sec-bf-system__description-spec-header {
  margin: 0 0 20px 0;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--main-font-color);
}
.sec-bf-system__description-spec-text-container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.sec-bf-system__description-spec-text {
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.1rem;
  color: var(--main-font-color);
  text-align: left;
}
.ec-bf-system__description-spec-hr {
  width: 100%;
}
.sec-bf-system__chart-container {
  background-color: var(--sub-bg-color);
}
.sec-bf-system__chart-inner {
  padding: 60px 20px 50px;
  width: calc(100vw - 40px);
  margin: 0 auto;
}
.sec-bf-system__chart-img-wrp {
  margin: 0 auto 50px auto;
  text-align: center;
}
.sec-bf-system__chart-txt-wrp {
  margin: 0 auto 0 auto;
  padding: 0 20px;
}
.sec-bf-system__chart-txt {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.1rem;
  color: var(--main-font-color);
  text-align: left;
}

/* pc */
@media screen and (min-width: 768px) {
  .sec-bf-system__description-inner {
    padding: 100px 0 80px 0;
    max-width: var(--pc-contents-width);
    margin: 0 auto;
  }
  .sec-bf-system__header-container {
    margin: 0 0 100px 0;
  }
  .sec-bf-system__header {
    margin: 0 0 60px 0;
    font-size: 4.0rem;
  }
  .sec-bf-system__sub-header {
    margin: 0 0 40px 0;
    font-size: 2.5rem;
    text-align: center;
  }
  .sec-bf-system__description-spec-container {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    gap: 60px;
  }
  .sec-bf-system__header-text {
    margin: 0 auto 0 auto;
    font-size: 2.0rem;
    width: 860px;
    text-align: left;
  }
  .sec-bf-system__description-spec {
    max-width: var(--pc-contents-width);
  }

  .sec-bf-system__description-spec-sub-header {
    font-size: 3.5rem;
  }
  .sec-bf-system__description-spec-header {
    font-size: 3.5rem;
  }
  .sec-bf-system__description-spec-text {
    font-size: 1.6rem;
  }
  .sec-bf-system__chart-inner {
    padding: 95px 0 95px 0;
    max-width: var(--pc-contents-width);
    margin: 0 auto;
  }
  .sec-bf-system__chart-img-wrp {
   padding: 0 0 100px 0;
  }
  .sec-bf-system__chart-txt-wrp {
    margin: 0 auto 0 auto;
  }
  .sec-bf-system__chart-txt {
    margin: 0 auto 0 auto;
    width: 860px;
    font-size: 2.0rem;
  }

}