/* ベースレイアウト */
.about-us-sec {
  display: flex;
}

/* セクションタイトル */
.about-us-sec .sec-title {
  margin-left: 5%;
  margin-top: 3rem;
  align-items: center;
}

.about-us-sec .top {
  color: #616161;
  font-size: 3rem;
}

.about-us-sec .middle {
  letter-spacing: -0.1rem;
  margin-top: -12px;
  font-size: 3.5rem;
  font-weight: 800;
  display: flex;
}

.about-us-sec .middle .right {
  background: linear-gradient(to right, #00fffb, #0d00ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-right: 2px;
}

.about-us-sec .bottom {
  color: #616161;
  margin-top: -12px;
  font-size: 3rem;
}

/* アウトライン装飾 */
.about-us-sec .out-line {
  border-radius: 0 40px 40px 0;
  margin-top: -40px;
  left: 0;
  position: absolute;
  outline: solid #367cff;
  width: calc(450px + 5%);
  height: 270px;
  z-index: -1;
}

/* 説明セクション */
.description-sec {
  margin: 20px 10% 0 15%;
}

.description-sec .desc-title {
  margin-left: -15px;
  font-size: 2rem;
  font-weight: 700;
}

.about-us-sec .description-sec .desc-title-second {
  margin: 1rem 0;
  font-size: 1.4rem;
  font-weight: 600;
}

/* 講師メニュー */
.teacher-menu {
  width: 80%;
  margin: 8rem auto 10rem;
}

.teacher-menu button {
  cursor: pointer;
  padding: 7px 25px;
  border: none;
  border-radius: 20px;
  color: white;
  background-color: #367cff;
  display: flex;
  align-items: center;
}

.teacher-intro-link {
  display: flex;
  pointer-events: none; /* 親リンクはクリック不可 */
  justify-content: flex-end;
}

.teacher-intro-link > button {
  pointer-events: auto; /* ボタンのみクリック可 */
}

.teacher-intro-link > button > .svg {
  align-items: center;
  margin-left: 4px;
  height: 24px;
}

/* レスポンシブデザイン */
@media (max-width: 1127px) {
  .about-us-sec {
    display: block;
  }

  .about-us-sec .description-sec {
    margin: 10rem auto 0;
    width: 800px;
  }
}

@media (max-width: 850px) {
  .about-us-sec .description-sec {
    margin: 10rem auto 0;
    width: 75%;
  }

  .about-us-sec .top {
    font-size: 2rem;
  }

  .about-us-sec .middle {
    font-size: 3rem;
  }

  .about-us-sec .bottom {
    font-size: 2rem;
  }

  .about-us-sec .out-line {
    border-radius: 0 30px 30px 0;
    width: calc(380px + 5%);
    height: 210px;
  }
}

@media (max-width: 610px) {
  .about-us-sec {
    padding-top: 2rem;
  }

  .about-us-sec .description-sec {
    margin: 5rem auto 0;
    width: 75%;
  }

  .description-sec .desc-title {
    font-size: 1.2rem;
  }

  .about-us-sec .description-sec .desc-title-second {
    font-size: 1rem;
  }

  .about-us-sec .top {
    font-size: 1.3rem;
  }

  .about-us-sec .middle {
    margin-top: -10px;
    font-size: 2rem;
  }

  .about-us-sec .bottom {
    margin-top: -10px;
    font-size: 1.3rem;
  }

  .about-us-sec .out-line {
    width: calc(220px + 5%);
    height: 150px;
  }

  .teacher-menu button {
    font-size: 1rem;
    padding: 7px 20px;
  }
}