.news-block {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
  max-width: 1000px;
  margin: auto;
  padding: 20px;
  box-sizing: border-box;
  font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.mat1 {
  flex: 1 1 calc(50.00% - 20px);
  box-sizing: border-box;
  /*min-width: 280px;*/
}

.news-item {
  flex: 1 1 calc(33.333% - 20px);
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  font-family: Arial, sans-serif;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);

}

.news-item img {
  width: 100%;
  height: 129px;
  /*width: 292px;
  height: 165px;*/
  display: block;
  border-radius: 8px;
}

.news-item h3 {
  font-size: 14px;
  color: #d60000;
  margin: 10px;
  line-height: 1.2em;
  /*font-size: 20px;*/
  line-height: 20px;
  text-decoration: none;
}

.news-item ul {
  list-style-type: disc;
  color: #d5d5d5;
  font-size: 14px;
  padding: 0 20px 10px 20px;
}

.news-item ul li {
  margin-top: 5px;
  font-size: 14px;  
}

.mat1 ul li a h3 {
    color: #0077cc;
    font-size: 14px;
    margin: 0;
    font-weight: normal;
    text-decoration: none;
}

@media (max-width: 1200px) {
  .news-block {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;
    max-width: 1000px;
    margin: auto;
    padding: 20px;
    box-sizing: border-box;
    font-family: 'Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  }

  .mat1 {
    flex: 1 1 calc(33.33% - 20px);
    box-sizing: border-box;
    /*min-width: 280px;*/
  }
}

/* Responsivo: em telas menores que 768px, as colunas ficam em uma por linha */
@media (max-width: 640px) {
  .news-block {
    flex-direction: column;
    gap: 0;
  }

  .mat1 {
    flex: 1 1 100%;
    min-width: 0;
    /*min-width: 280px;*/
  }

  .news-item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    flex: 1 1 100%;
    padding: 10px 0;
  }

  .news-item img {
    width: 134px;
    height: 101px;
    margin-right: 12px;
    border-radius: 8px;
    display: block;
  }

  .news-item h3,
  .news-item ul {
    margin-top: 0;
  }

  .news-item>div,
  .news-item h3,
  .news-item ul {
    flex: 1;
  }

  .news-item ul {
    padding: 0 0 0 20px;
  }

  .news-item ul,
  .news-item ul li {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0 0 0 20px;
    box-sizing: border-box;
    white-space: normal;
    font-size: 14px;
  }

}