:root {
  --main-red: #E42C2C;
  --font-size-base: 16px;
  --font-color: #333333;
}
html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}
@media screen and (max-width: 768px) {
  html { font-size: 15px; }
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Noto Sans JP', sans-serif;
  background: #f5f7fa;
  color: #333;
  line-height: 1.7;
  font-size: 1rem;
}
a {
  text-decoration: none;
  color: inherit;
}
section {
  scroll-margin-top: 100px;
}

/* ヘッダー */
header {
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--main-red);
}

/* ヒーローセクション */
.hero h1 {
  font-size: 2em;
  margin-bottom: 16px;
}
.hero p {
  font-size: 1.1em;
}

/* メインコンテンツ */
.container {
  max-width: 1100px;
  margin: 50px auto;
  padding: 0 16px;
}
.section-heading {
  font-size: 1.3em;
  border-left: 4px solid var(--main-red);
  padding-left: 12px;
  margin-bottom: 24px;
  color: var(--main-red);
}

/* STEP3独自のクラス - 最小限にとどめる */

/* サブリスト関連 */
.sub-list {
  list-style-type: disc;
  margin-top: 0.3rem;
  padding-left: .5rem;
}

.sub-list li {
  font-size: 0.95rem;
  color: #666;
}

/* サマリーアピール関連 */
.sum-appeal {
  text-align: center;
  padding: 1rem 2rem;
  line-height: 1.8;
}

.sum-appeal p {
  font-size: 1.1rem;
  font-weight: 500;
}

/* レスポンシブ対応 */
@media screen and (max-width: 768px) {
  .sub-list {
    padding-left: .4rem;
  }
  
  .sum-appeal p {
    font-size: 1rem;
  }
  
  /* 実事業展開のレスポンシブ対応 */
  .buisiness__content-lists li:not(:first-child) {
    margin-top: 0.25rem;
  }
  
  .buisiness__howToWork-lists > li:not(:first-child) {
    margin-top: 0.4rem;
  }
  
  .buisiness__result-lists li:not(:first-child) {
    margin-top: 0.25rem;
  }
}

@media screen and (max-width: 640px) {
  .sub-list {
    padding-left: .3rem;
  }
  
  .sub-list li {
    font-size: 0.9rem;
  }
  
  .sum-appeal {
    padding: 0.8rem 1.2rem;
  }
  
  .sum-appeal p {
    font-size: 0.95rem;
  }
  
  /* 実事業展開のレスポンシブ対応 */
  .buisiness__content-lists li:not(:first-child) {
    margin-top: 0.2rem;
  }
  
  .buisiness__howToWork-lists > li:not(:first-child) {
    margin-top: 0.3rem;
  }
  
  .buisiness__result-lists li:not(:first-child) {
    margin-top: 0.2rem;
  }
}

/* フッター */
footer {
  width: 100%;
  background: #000;
  color: #fff;
  text-align: center;
  padding: 20px 24px;
  font-size: 0.85em;
}

.program-flow__lists {
  margin-top: 1rem;
}

.buisiness__content-lists {
  margin-top: .6rem;
}

.buisiness__content-lists li:not(:first-child) {
  margin-top: .3rem;
}

.buisiness__howToWork-ttl {
  margin-top: 1.7rem;
}

.buisiness__howToWork-lists {
  margin-top: .7rem;
}

.buisiness__howToWork-lists > li:not(:first-child) {
  margin-top: .8rem;
}

.buisiness__result-ttl {
  margin-top: 1.7rem;
}

.buisiness__result-lists {
  margin-top: .5rem;
}