/*
//////////////////////////////////////////////////////////////////////////////////////////////
                                            common
//////////////////////////////////////////////////////////////////////////////////////////////
*/
.topics {
  margin-inline: auto;
  position: relative;
}
.topics__container .index {
  margin: 0 auto;
  font-style: normal;
  letter-spacing: 0.05em;
}
.topics__container .index__category {
  color: #737373;
  font-weight: 600;
  transition-duration: 0.2s;
  cursor: pointer;
}
.topics__container .index__category.current {
  color: var(--color-basis);
}
.topics__container .index {
  display: flex;
}
/* .topics__wrapper {
  margin-inline: auto;
} */
.topics__list {
  display: grid;
  grid-template-columns: repeat(var(--column), 1fr);
}
.topics .archive__unit {
  display: none;
}
.topics .archive__unit figcaption {
  font-size: var(--capt-fz, 1.1rem);
  line-height: 1.5;
}
.topics .archive__date {
  color: #666;
}
/*
//////////////////////////////////////////////////////////////////////////////////////////////
                                      for mobile phone
//////////////////////////////////////////////////////////////////////////////////////////////
*/
@media screen and (max-width: 767px) {
  .topics {
    -webkit-padding-after: 25.3333333333vw;
            padding-block-end: 30.333333vw;
  }
  .topics__container {
    -webkit-padding-before: 23.333333vw;
    padding-block-start: 0;
    width: calc(710 *(100vw /750));
    margin: 0 auto;
  }
  .topics__container .index {
    margin-inline: 6.6666666667vw;
    -webkit-margin-after: 4.8vw;
            margin-block-end: 4.8vw;
    padding-bottom: 3.3333333333vw;
    font-size: 6vw;
    border-bottom: 1px solid #000;
  }
  .topics__container .index__category:not(:nth-of-type(1)) {
    margin-left: 4vw;
  }
  /* .topics__wrapper {
    padding-inline: 6.6666666667vw;
    position: relative;
    margin-top: calc(57 *(100vw /750));
  } */
  
  #breadcrumb .cateList {
    display: flex;
  }

  #breadcrumb {
    position: absolute;
    top: calc(40*(100vw /750));
    left: calc(20 *(100vw /750));
    display: inline-block;
    width: auto;
  }
  #breadcrumb .cateList {
    display: flex;
  }
  #breadcrumb .cateList li:nth-of-type(1) {
    font-size: calc(23 *(100vw /750));
    font-family: "font-en";
    color: #000;
    letter-spacing: 0.06em;
  }
  #breadcrumb .cateList li:nth-of-type(2) {
    font-size: calc(23 *(100vw /750));
    font-family: "font-en";
    color: #000;
    letter-spacing: 0.06em;
    margin-left: calc(23 *(100vw /750));
  }

  #breadcrumb .cateList span {
    font-size: calc(23 *(100vw /750));
    margin-left: calc(24 *(100vw /750));
  }

  .topics .topics__ttl {
    padding-bottom: calc(5 *(100vw /750));
    width: calc(605 *(100vw /750));
    margin: 0 auto;
    border-bottom: 1px solid #000;
    padding-top: calc(117 *(100vw /750));
  }
  
  .topics .topics__ttl .sentence {
    font-size: calc(23 *(100vw /750));
    letter-spacing: 0.06em;
  }
  .topics__list {
    gap: calc(34 *(100vw /750)) 0;
    width: calc(605 *(100vw /750));
    margin: calc(40 *(100vw /750)) auto 0;
  }
  .topics__list .archive__txt {
    margin-top: calc(12 *(100vw /750));
    font-family: "font-en";
    color: #000;
  }
  .topics .archive__txt .archive__date {
    font-size: calc(20 *(100vw /750));
    letter-spacing: 0.06em;
    color: #000;
  }

  .topics .archive__txt .archive__ttl {
    font-size: calc(25 *(100vw /750));
    letter-spacing: 0.06em;
    margin-top: 0.8rem;
  }

  .topics .archive__unit figcaption {
    -webkit-margin-before: 3.3333333333vw;
            margin-block-start: 3.3333333333vw;
  }
  .topics .c-breadcrumb {
    -webkit-margin-before: 17.3333333333vw;
            margin-block-start: 17.3333333333vw;
    padding-inline: 6.6666666667vw;
  }
}
/*
//////////////////////////////////////////////////////////////////////////////////////////////
                                        for desktop
//////////////////////////////////////////////////////////////////////////////////////////////
*/
@media screen and (min-width: 768px) {
  .topics {
    -webkit-padding-after: 70px;
            padding-block-end: 70px;
  }
  .topics__container {
    -webkit-padding-before: 175px;
    padding-block-start: 28px;
    margin-bottom: 12.6rem;
  }
  .topics__container .index {
    display: flex;
    max-width: 820px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #000;
    font-size: 30px;
  }
  .topics__container .index__category:not(:nth-of-type(1)) {
    margin-left: 60px;
  }
  .topics__container .index {
    display: flex;
  }
  /* .topics__wrapper {
    max-width: 904px;
    width: 100%;
    position: relative;
  } */

  #breadcrumb {
    position: absolute;
    top: 0;
    /* left: -11.7rem; */
    left: 0;
    display: inline-block;
    width: auto;
  }
  #breadcrumb .cateList {
    display: flex;
  }
  #breadcrumb .cateList li:nth-of-type(1) {
    font-size: 1.3rem;
    font-family: "font-en";
    color: #000;
    letter-spacing: 0.06em;
  }
  #breadcrumb .cateList li:nth-of-type(2) {
    font-size: 1.3rem;
    font-family: "font-en";
    color: #000;
    letter-spacing: 0.06em;
    margin-left: 1.3rem;
  }

  #breadcrumb .cateList span {
    font-size: 1.3rem;
    margin-left: 1.4rem;
  }

  .topics .topics__ttl {
    padding-bottom: 0.7rem;
    max-width: 80rem;
    width: 100%;
    margin: 0 auto;
    font-family: "font-en";
    border-bottom: 1px solid #000;
    padding-top: 74px;
  }

  .topics .topics__ttl .sentence {
    font-size: 2rem;
    letter-spacing: 0.06em;
  }


  .topics__list {
    --column: 2;
    width: 80rem;
    margin: 5rem auto 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 9.2rem 2.5rem;
  }
  .topics .archive__unit figcaption {
    --capt-fz: 12px;
    -webkit-margin-before: 15px;
            margin-block-start: 15px;
  }
  .topics .archive__txt {
    color: #000;
    font-family: "font-en";
    margin-top: 2rem;
  }

  .topics .archive__txt .archive__date {
    font-size: 1.3rem;
    letter-spacing: 0.06em;
    color: #000;
  }

  .topics .archive__txt .archive__ttl {
    font-size: 1.8rem;
    letter-spacing: 0.06em;
    margin-top: 0.8rem;
  }
  
  .topics .c-breadcrumb {
    max-width: 820px;
    width: 95%;
    -webkit-margin-before: 100px;
            margin-block-start: 100px;
    margin-inline: auto;
    padding: 0;
  }
}





/*
//////////////////////////////////////////////////////////////////////////////////////////////
                                        cont_inner
//////////////////////////////////////////////////////////////////////////////////////////////
*/

.cont_inner {
  max-width: 1330px;
  width: 100%;
  margin: 0 auto;
  position: relative;
}

@media screen and (max-width: 767px) {
	.cont_inner {
		max-width: none;
	}
}

.topics_inner {
  max-width: 904px;
  width: 100%;
  margin: 0 auto;
  position: relative;
}

@media screen and (max-width: 767px) {
	.topics_inner {
		max-width: none;
	}
}


@media only screen and (min-width: 768px) and (max-width: 904px) {
  html,
	body {
    font-size: calc(10 *(100vw / 1400));
  }
}