ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

[class*="container"] {
  margin: 0 auto;
  padding: 0 50px;
  /*1498px = 1398px + 50px + 50px не менять*/
  max-width: 1500px;
}

.part {
  width: 50%;
}

.is-hidden {
  display: none;
}

.acc {
  padding-bottom: 26px;
}

.acc-375 {
  display: none;
}

button.acc__link {
  display: inline-block;
  margin: 0;
  padding: 0;
  border: none;
  width: auto;
  font: inherit;
  text-align: left;
  color: inherit;
  background: none;
  cursor: pointer;
}


@media (max-width: 545px) {
  [class*="__container"] {
    padding: 0 15px;
  }

  .acc {
    padding-bottom: 0;
  }

  .acc-1920 {
    display: none;
  }

  .acc-375 {
    display: block;
  }
}