.feature-header {
  background: #fff;
  padding: 40px 20px;
  text-align: center;
  margin: 30px;
  border-left: 4px solid #d40000;
}

.main-title {
  font-size: 2.4rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  color: #000;
  font-family: 'Arial Black', sans-serif;
  line-height: 1.2;
}

.subtitle {
  font-size: 1.2rem;
  font-style: italic;
  color: #222;
  margin-bottom: 20px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.byline {
  font-size: 0.95rem;
  color: #666;
  font-style: italic;
}

/* Адаптивность */
@media (max-width: 768px) {
  .main-title { font-size: 1.9rem; }
  .subtitle { font-size: 1.05rem; }
}
.article-body {
      background: #fff;
      padding: 10px;
      margin-bottom: 10px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      border-left: 0px solid #d40000;
    }

    .article-body p {
      font-size: 1.05rem;
      margin-bottom: 18px;
      text-align: justify;
    }

    .article-body blockquote {
      font-style: italic;
      margin: 24px 0;
      padding-left: 20px;
      border-left: 4px solid #d40000;
      color: #000;
      font-size: 1.15rem;
    }

    .article-body ul {
      padding-left: 24px;
      margin: 16px 0;
    }

    .article-body li {
      margin-bottom: 10px;
    }

    /* Адаптивность */
    @media (max-width: 768px) {
      .main-title { font-size: 1.9rem; }
      .subtitle { font-size: 1.05rem; }
      .article-body p,
      .article-body blockquote { font-size: 1rem; }
    }

.muscle-group {
      background: #fff;
      padding: 14px;
      margin-bottom: 24px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      border-left: 0px solid #d40000;
    }

    .group-title {
      font-size: 1.5rem;
      font-weight: bold;
      margin: 0 0 12px 0;
      color: #000;
      font-family: 'Arial', sans-serif;
    }

    .exercise-name {
      font-weight: bold;
      margin-bottom: 12px;
    }

    .grage-quote {
      font-style: italic;
      margin: 16px 0;
      padding-left: 20px;
      border-left: 4px solid #d40000;
      color: #000;
      font-size: 1.1rem;
    }

    /* Ссылки */
    .links-section {
      background: #fff;
      padding: 24px;
      margin-top: 20px;
      border-left: 0px solid #d40000;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }

    .links-title {
      font-size: 1.3rem;
      font-weight: bold;
      margin-bottom: 12px;
    }

    .links-section a {
      color: #d40000;
      text-decoration: none;
    }

    .links-section a:hover {
      text-decoration: underline;
    }

    /* Адаптивность */
    @media (max-width: 768px) {
      .main-title { font-size: 1.8rem; }
      .group-title { font-size: 1.35rem; }
      .grage-quote { font-size: 1rem; }
    }