.l-sec-btn{
  display: flex;
  justify-content: center;
}
.l-sec-btn .sec__btn {
    width: fit-content;
    max-width: 100%;
    margin: 4rem 0 0 60px;
    text-align: center;
    font-size: .77778rem;
    font-weight: 700;
}

.l-sec-btn .c-btn02 {
    margin: 0;
    min-width: 500px
}

@media only screen and (max-width:900px) {
  .l-sec-btn{
    display: block;
  }
  .l-sec-btn .sec__btn {
    width: auto;
    margin: 1.5rem 0 1rem 0;
    font-size: .6rem;
  }
  .l-sec-btn .c-btn02 {
      padding: 10px 0;
  }
}