/* Основной контейнер по образцу about.css */
.page-container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

.page-container h1 {
  margin-bottom: 24px;
  color: #0073e6;
  font-size: 2rem;
  text-align: center;
  font-weight: 700;
}

/* Список контактов с dl/dt/dd */
.contacts-list {
  margin: 0 auto 32px;
}

.contacts-list dt {
  margin-top: 24px;
  font-weight: 600;
  color: #0073e6;
  font-size: 1rem;
}

.contacts-list dd {
  margin: 4px 0 0 20px;
  font-size: 1rem;
  line-height: 1.5;
  color: #222;
}

.contacts-list dt:first-of-type {
  margin-top: 0;
}

/* Ссылки */
.contacts-list a {
  color: #0073e6;
  text-decoration: none;
  transition: color .2s;
}
.contacts-list a:hover {
  color: #005bb5;
  text-decoration: underline;
}

/* Кнопка "На главную" */
.btn-back {
  display: inline-flex;
  align-items: center;
  margin: 24px 0 24px; /* убрали левый край, центрируем по контейнеру */
  padding: 10px 16px;
  background: #0073e6;
  color: #fff;
  text-decoration: none;
  border-radius: 40px;
  font-weight: 600;
  font-size: 16px;
  transition: background .2s;
}
.btn-back:hover {
  background: #005bb5;
}
.btn-back .btn-arrow {
  margin-right: 8px;
  display: inline-block;
  transition: transform .2s;
}
.btn-back:hover .btn-arrow {
  transform: translateX(-4px);
}

/* Адаптив */
@media (max-width: 680px) {
  .page-container {
    padding: 0 12px;
  }
  .contacts-list dt,
  .contacts-list dd {
    font-size: 0.95rem;
    margin-left: 0;
  }
  .contacts-list dd {
    margin-bottom: 12px;
  }
  .btn-back {
    width: 100%;
    justify-content: center;
  }
}