.section-title-left {
  font-size: 28px;
  margin-bottom: 30px;
  color: var(--text-color);
  text-align: left;
  font-weight: 700;
  line-height: 1.2;
}

.section-title-center {
  font-size: 24px;
  color: var(--text-color);
  margin-bottom: 20px;
  text-align: center;
  font-weight: 600;
}

.section-title-large {
  font-size: 28px;
  color: var(--text-color);
  margin-bottom: 20px;
  font-weight: 600;
  text-align: center;
}

.intro-text {
  font-size: 16px;
  color: #666;
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.intro-text-small {
  font-size: 16px;
  color: #6b7280;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
  text-align: center;
}

.content-text p {
  font-size: 16px;
  margin-bottom: 20px;
  text-align: justify;
  line-height: 1.6;
  color: var(--text-color);
}

.content-text-wide p {
  font-size: 16px;
  margin-bottom: 20px;
  text-align: justify;
  line-height: 1.6;
  color: var(--text-color);
}

.full-width-text p {
  font-size: 16px;
  margin-bottom: 20px;
  text-align: justify;
  line-height: 1.6;
  color: var(--text-color);
}

.highlight-text,
.highlight-text-simple {
  background: linear-gradient(135deg, var(--light-bg) 0%, #e8f4f8 100%);
  padding: 20px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
  margin-top: 20px;
  font-style: italic;
  text-align: left;
}

.content-title {
  font-size: 28px;
  margin-bottom: 20px;
  color: var(--text-color);
}

.content-subtitle {
  font-size: 22px;
  margin-bottom: 15px;
  color: var(--primary-color);
}

@media screen and (max-width: 768px) {
  .section-title-left {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .section-title-center,
  .section-title-large {
    font-size: 20px;
  }

  .content-text p,
  .content-text-wide p,
  .full-width-text p {
    font-size: 15px;
    margin-bottom: 18px;
  }

  .highlight-text,
  .highlight-text-simple {
    padding: 15px;
    font-size: 14px;
  }

  .content-title {
    font-size: 24px;
  }

  .content-subtitle {
    font-size: 20px;
  }
}

@media screen and (max-width: 480px) {
  .section-title-left {
    font-size: 20px;
  }

  .section-title-center,
  .section-title-large {
    font-size: 18px;
  }

  .content-text p,
  .content-text-wide p,
  .full-width-text p {
    font-size: 14px;
  }

  .highlight-text,
  .highlight-text-simple {
    padding: 12px;
    font-size: 13px;
  }

  .content-title {
    font-size: 20px;
  }

  .content-subtitle {
    font-size: 18px;
  }
}