.megaMenu__inner {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
}

.megaMenu__inner li {
  width: 25%;
  box-sizing: border-box;
}

.megaMenu__iconbutton img {
  width: 100%;
  height: auto;
  display: block;
}

/* スマホ */
@media (max-width: 768px) {
  .megaMenu__inner li {
    width: 50%;
  }
}

@media (max-width: 480px) {
  .megaMenu__inner li {
    width: 100%;
  }
}
<!-- ↑ネクタイFPスマホ用カテゴリーのみタテに表示して、黒丸を消すため(後付け) -->

.sliderandtextSec {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  padding: 80px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.sat_slider {
  flex: 1;
  display: flex;
}

.sat_slider_unit {
  width: 100%;
}

.sat_slider_unit img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  object-fit: cover;
}

.sat_text {
  flex: 1;
}

.sat_text h2 {
  font-size: 28px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.sat_text p {
  font-size: 15px;
  line-height: 2;
  color: #333;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: left;
}

.slider-left {
  order: 2;
}

.slider-right {
  order: 1;
}





<!-- 元-->
table.tbl_calendar {
    text-align: center;
    width: 100%;
    margin-bottom: 15px;
}
table.tbl_calendar caption{
  font-weight: bold;
  margin: 10px auto;
}

      .product__fav-item {
          margin-top: 10px;
        }

        .product__fav-item button {
          padding: 0;
          cursor: pointer;
          transition: .2s;
          color: #999;
          border: 0;
          outline: none;
          background: transparent;
        }

        .product__fav-item .fav-items {
          color: #ff7373;
        }

        .product__fav-item svg {
          width: 20px;
          height: 20px;
          vertical-align: -.35em;
          fill: currentColor;
        }


.fav-item{
  position: absolute;
  left: 25px;
  top: 10px;
}
@media (max-width: 767px) {
  .fav-item{
    position: absolute;
    left: 15px;
    top: 10px;
  }
  .itemList-sp--3 .fav-item {
    right: 10px;
    top: 5px;
  }
}
.fav-item button {
    animation: none;
    border: none;
    background: none;
    padding: 0;
    color: rgba(0,0,0, 0.5);
   cursor: pointer;
}
.fav-item button.is-added {
    color: rgba(255, 115, 115, 0.5);
}

h1#logo_i img {
    max-width: 100%;
}

#validation_select_yes a, #validation_select_no a {
    font-size: 12px;
    padding: 12px 25px;
}

#validation_select_yes, #validation_select_no{
  margin:0;
}

#main_i,#header_i,#footer_i{
  margin:0;
  font-size:14px;
}

.validation_txt {
    font-size: 14px;
}
#main_i {
    padding: 20px;
}
.footstamp {
    margin-top: 15px;
}

.d_favoritebtn img {
  vertical-align: -6px;
  max-width: 30px;
  padding-right: 5px;
}
.d_favoritebtn {
  display: block;
  margin-top: 8px;
}



<!-- 追加 -->
/* この3ブロックだけ absolute を解除 */
.sliderandtextSec.type-a .sat_text,
.sliderandtextSec.type-a .sat_slider {
  position: static !important;
  top: auto !important;
  left: auto !important;
  right: auto !important;
  bottom: auto !important;
}