.about-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:  #99afb0;
  padding: 80px 40px;
}

.about-content {
  display: flex;
  align-items: center;
  gap: 60px;   /* ロゴと文章の間 */
}

.about-logo {
  width: 300px;
 
}

.about-text {
  width: 500px;
  max-width: 100%;
 
}



.feature-section {
  min-height: 100vh;
  padding: 120px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 80px;
}

/* タイトル中央 */
.feature-title {
  text-align: center;
}

.feature-title img {
  width: 440px;
  
}

/* 図＋説明 */
.feature-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  
}

.feature-image {
  width: 300px;
}

.feature-text {
  width: 470px;
}

.preset-section {
  min-height: 100vh;
  padding: 120px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 80px;
}

.preset-title {
  text-align: center;
  padding-bottom: 100px;
  
}

.preset-title img {
  width: 480px;
  
}

/* プリセット画像を縦に並べる */
.preset-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 180px;  /* 画像同士の間 */
}

.preset-item01 {
  width: 600px;
  max-width: 90%;
  transition: 0.3s;
 
}

.preset-item02 {
  width: 400px;
  max-width: 90%;
  transition: 0.3s;
 
}


.preset-item03 {
  width: 400px;
  max-width: 90%;
  transition: 0.3s;
 
}


/* ==============================
   スマホ対応（最大幅430px以下）
============================== */
@media screen and (max-width: 430px) {

  /* ------------------------------
     about-section（概要）
  ------------------------------ */
  .about-section {
    padding: 40px 20px;
  }

  .about-content {
    flex-direction: column; /* 上にロゴ、下に説明文 */
    gap: 50px;
    align-items: center;
  }

  .about-logo {
    width: 150px;
  }

  .about-text {
    width: 90%;
  }

  /* ------------------------------
     feature-section（機能説明）
  ------------------------------ */
  .feature-section {
    padding: 60px 20px;
    gap: 50px;
  }

  .feature-title img {
    width: 320px;
  }

  .feature-content {
    flex-direction: column;
    gap: 60px;
  }

  .feature-image {
    width: 200px;
  }

  .feature-text {
    width: 90%;
  }

  /* ------------------------------
     preset-section（プリセット）
  ------------------------------ */
  .preset-section {
    padding-top: 100px;
    padding-bottom: 20px;
    padding-left: 20px;
    padding-right: 20px;
    gap: 10px;
  }

  .preset-title img {
    width: 330px;
  }

  .preset-list {
    gap: 85px;
  }


  .preset-item01 {
  width: 400px;
  max-width: 80%;
  transition: 0.3s;
  padding-bottom: 10px;
 
}

.preset-item02 {
  width: 200px;
  max-width: 85%;
  transition: 0.3s;
 
}


.preset-item03 {
  width: 200px;
  max-width: 85%;
  transition: 0.3s;
 
}

}