@charset "UTF-8";
/* CSS Document */
@font-face {
  src: url("../fonts/NotoSansJP-japanese-400.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  src: url("../fonts/NotoSansJP-latin-400.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  src: url("../fonts/NotoSansJP-japanese-700.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  src: url("../fonts/NotoSansJP-latin-700.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 700;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  src: url("../fonts/NotoSansJP-japanese-900.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  src: url("../fonts/NotoSansJP-latin-900.woff2") format("woff2");
  font-family: "Noto Sans JP";
  font-weight: 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 750px) {
  .spNone {
    display: none !important;
  }
}

@media (min-width: 751px) {
  .pcNone {
    display: none !important;
  }
}

.switch {
  visibility: hidden;
}

.bold {
  font-weight: bold;
}

@media (max-width: 750px) {
  .spleft {
    text-align: left !important;
  }
}

.right {
  text-align: right;
}

.center {
  text-align: center;
}
.center img {
  margin-right: auto;
  margin-left: auto;
}

.red {
  color: #e11c24;
}

.theme {
  color: #8f8975;
}

/* タイトル */
/* メインビジュアル（静的1枚画像。Swiperは使用しない） */
.mainvisualTop {
  position: relative;
  background: url(../images/top/kv.jpg) no-repeat center center;
  background-size: cover;
  background-color: #313131;
  height: 43.75em;
  overflow: hidden;
}
@media (min-width: 751px) {
  .mainvisualTop {
    font-size: clamp(11.2px, 1.1111vw, 16px);
  }
}
@media (max-width: 750px) {
  .mainvisualTop {
    height: auto;
    padding-block: 3.124rem;
  }
}
.mainvisualTop::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(to left, white 26%, #5e5e5e 60%);
  mix-blend-mode: multiply;
}
.mainvisualTop .inner {
  position: relative;
  z-index: 1;
  max-width: 74.75em;
  height: 100%;
}
.mainvisualTop .h1default {
  color: white;
  font-size: 3em;
  line-height: 1.52;
  text-align: left;
  padding-top: 1em;
}
@media (max-width: 750px) {
  .mainvisualTop .h1default {
    font-size: 1.5rem;
    padding-top: 0;
  }
}
.mainvisualTop .mv-diagram {
  position: relative;
  width: 42.4375em;
  aspect-ratio: 679/282;
  margin-top: 2.5em;
  margin-left: calc(50% - 50vw);
}
@media (max-width: 750px) {
  .mainvisualTop .mv-diagram {
    width: 100%;
    margin-left: 0;
  }
}
.mainvisualTop .mv-diagram .badge {
  position: absolute;
  top: 2.84%;
  left: 61%;
  width: 39.6%;
}
.mainvisualTop .mv-diagram .label {
  position: absolute;
  left: 0;
  z-index: 1;
}
.mainvisualTop .mv-diagram .label1 {
  top: 0;
  width: 68.04%;
}
.mainvisualTop .mv-diagram .label2 {
  top: 28.7%;
  width: 59.79%;
}
.mainvisualTop .mv-diagram .label3 {
  top: 57.1%;
  width: 67.6%;
}
.mainvisualTop .linkbox_wrap {
  position: absolute;
  right: 0;
  bottom: 8.1%;
  left: 0;
}
@media (max-width: 750px) {
  .mainvisualTop .linkbox_wrap {
    position: static;
    flex-wrap: wrap;
    margin-top: 2.375rem;
  }
}
.mainvisualTop .linkbox {
  color: black;
  background-color: white;
  border-color: white;
  font-size: 1.25em;
  min-height: 3.3em;
}
@media (min-width: 751px) {
  .mainvisualTop .linkbox {
    width: 14.75em;
    max-width: 100%;
    padding-left: 0.75em;
    padding-right: 1.7em;
  }
}
.mainvisualTop .linkbox::after {
  background-color: black;
}
@media (min-width: 751px) {
  .mainvisualTop .linkbox::after {
    right: 0.6em;
  }
}
.mainvisualTop .linkbox:hover {
  color: white;
  background-color: #8f8975;
  border-color: #8f8975;
}
.mainvisualTop .linkbox:hover::after {
  background-color: white;
}
@media (max-width: 750px) {
  .mainvisualTop .linkbox {
    font-size: 1em;
  }
  .mainvisualTop .linkbox:not(:last-of-type) {
    margin-bottom: 0.7031rem !important;
  }
}
.mainvisualTop .mv-icons {
  position: absolute;
  top: 6.86%;
  z-index: 1;
  width: 17.22%;
  right: max(-4.35%, 50% - 50vw + 4vw);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.82em 8.3%;
  padding: 0;
  margin: 0;
  list-style: none;
}
@media (max-width: 750px) {
  .mainvisualTop .mv-icons {
    position: static;
    width: 18.4675rem;
    margin-right: auto;
    margin-left: auto;
    margin-top: 1.459rem;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.7rem 0.636rem;
  }
}
.mainvisualTop .mv-icons a {
  position: relative;
  display: block;
  transition: all ease 0.5s;
}
.mainvisualTop .mv-icons a:hover {
  opacity: 0.7;
}
.mainvisualTop .mv-icons img {
  display: block;
  width: 100%;
}
.mainvisualTop .mv-icons a[href="#date"]::after {
  content: "";
  display: block;
  position: absolute;
  right: 10%;
  bottom: 5.5%;
  left: 10%;
  height: 1px;
  background-color: black;
}

section, .contentwrap section {
  padding: 4.3em 0;
}
@media (max-width: 750px) {
  section, .contentwrap section {
    padding: 3.124rem 0;
  }
}

/* 本文の基本（Figma実測：17px / 行送り24px）
   ※行送り 1.4 は日本語本文としてはかなり詰まっている。可読性を優先するなら 1.6〜1.8 を推奨（要判断） */
main p {
  font-size: 1.0625em;
  line-height: 1.45;
}
@media (max-width: 750px) {
  main p {
    font-size: 1rem;
  }
}
main figure {
  margin: 0;
}
main figure img {
  width: 100%;
}

/* 個別 */
/* News（見出し＋帯） */
@media (min-width: 751px) {
  .news .newsticker {
    display: flex;
    align-items: center;
  }
}
.news .newsticker .label {
  color: #8f8975;
  font-size: 1.625em;
  font-weight: bold;
  margin: 0;
}
@media (min-width: 751px) {
  .news .newsticker .label {
    flex: 0 0 6.3125rem;
  }
}
.news .newsticker .band {
  background-color: rgba(143, 137, 117, 0.15);
  border-radius: 2px;
  padding: 0.75em 1em;
}
@media (max-width: 750px) {
  .news .newsticker .band {
    margin-top: 0.4688rem;
  }
}
@media (min-width: 751px) {
  .news .newsticker .band {
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    height: 3.4375em;
    padding-block: 0;
  }
}
.news .newsticker .category {
  color: white;
  background-color: black;
  display: inline-block;
  font-size: 1em;
  border-radius: 2px;
  padding: 0.1875em 1.25em;
  margin: 0;
  white-space: nowrap;
}
.news .newsticker .date {
  font-size: 1em;
  margin: 0;
}
@media (min-width: 751px) {
  .news .newsticker .date {
    margin-left: 1.5em;
  }
}
@media (max-width: 750px) {
  .news .newsticker .date {
    margin-top: 0.2344rem;
  }
}
.news .newsticker .text {
  margin: 0;
}
@media (min-width: 751px) {
  .news .newsticker .text {
    margin-left: 1.5em;
  }
}
.news .newsticker .text a {
  color: inherit;
  text-decoration: none;
}
.news .newsticker .text a:hover {
  text-decoration: underline;
}
.news .more {
  color: #313131;
  text-decoration: none;
}
.news .more:hover {
  text-decoration: underline;
}
@media (max-width: 750px) {
  .news .newslist {
    margin-top: 5rem;
  }
}
.news .newslist > ul > li {
  grid-row: span 2;
}
.news .newslist .imgbox img {
  aspect-ratio: 313/538;
  -o-object-fit: cover;
     object-fit: cover;
}

/* アルセンのコア技術 */
.coretech figure img {
  border-radius: 2px;
}

/* 素材選定の課題3項目（テーマ色のグラデーション帯） */
.challengelist {
  padding: 0;
  list-style: none;
}
@media (max-width: 750px) {
  .challengelist {
    margin-top: 3.6875rem;
  }
}
.challengelist > li {
  background: linear-gradient(to right, #aea075 0%, #8f8975 100%);
  color: white;
  padding: 0 2.5em 0 2.375em;
}
@media (min-width: 751px) {
  .challengelist > li {
    display: flex;
    align-items: flex-end;
    min-height: 10.375em;
  }
}
@media (max-width: 750px) {
  .challengelist > li {
    padding: 1.172rem;
  }
}
.challengelist > li:not(:last-of-type) {
  margin-bottom: 1.9375em;
}
@media (min-width: 751px) {
  .challengelist > li .imgbox {
    flex: 0 0 7.75em;
    max-width: 7.75em;
  }
}
@media (max-width: 750px) {
  .challengelist > li .imgbox {
    width: 7.75rem;
    margin-inline: auto;
  }
}
.challengelist > li .imgbox img {
  width: 100%;
  display: block;
}
.challengelist > li .textbox {
  padding: 2.25em 0 2.25em 2em;
}
@media (max-width: 750px) {
  .challengelist > li .textbox {
    padding: 0.7031rem 0 0;
  }
}
.challengelist > li .textbox h3, .challengelist > li .textbox p {
  color: white;
}
.challengelist > li .textbox h3 {
  margin-bottom: 0.5em;
}
@media (max-width: 750px) {
  .challengelist > li .textbox h3 {
    font-size: 1.375rem;
  }
}

/* アルセンが選ばれる5つの理由 */
.numbercard {
  padding: 0;
  list-style: none;
}
@media (min-width: 751px) {
  .numbercard {
    margin-top: 5.1875em;
    display: flex;
    justify-content: space-between;
    gap: 1.5625em;
  }
}
.numbercard > li {
  position: relative;
  background-color: white;
  border-radius: 2px;
}
@media (min-width: 751px) {
  .numbercard > li {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3.125em 1em 1.5em;
    text-align: center;
    flex: 0 0 calc((100% - 6.25em) / 5);
    max-width: calc((100% - 6.25em) / 5);
    min-height: 15.6875em;
  }
}
@media (max-width: 750px) {
  .numbercard > li {
    display: flex;
    align-items: center;
    min-height: 5.625rem;
    margin-left: 2.1875rem;
    padding-left: 3.875rem;
    padding-right: 1.25rem;
  }
  .numbercard > li:not(:first-child) {
    margin-top: 0.8125rem;
  }
}
@media (min-width: 751px) {
  .numbercard > li .num {
    position: absolute;
    top: -2.1875em;
    right: 0;
    left: 0;
    margin-right: auto;
    margin-left: auto;
    width: 4.375em;
    height: 4.375em;
  }
}
@media (max-width: 750px) {
  .numbercard > li .num {
    position: absolute;
    top: 50%;
    left: -1.5625rem;
    transform: translateY(-50%);
    width: 3.125rem;
    height: 3.125rem;
  }
}
.numbercard > li .title {
  font-size: 1.125em;
  font-weight: bold;
  line-height: 1.67;
  margin: 0;
}
@media (max-width: 750px) {
  .numbercard > li .title {
    font-size: 1.125rem;
    text-align: left;
  }
}

/* アルセンを支える3つの独自技術 */
.technology .techblock:not(:first-child) {
  margin-top: 3.75em;
}
.technology .techblock .h3default {
  color: #8f8975;
  margin-bottom: 1em;
}
.technology .techblock .h3default > span {
  border-bottom: 1px solid #8f8975;
  padding-bottom: 0.3em;
}
@media (max-width: 750px) {
  .technology .techblock .h3default > span {
    border-bottom: none;
    padding-bottom: 0;
  }
}
@media (max-width: 750px) {
  .technology .techblock .h3default {
    border-bottom: 1px solid #8f8975;
    padding-bottom: 0.3em;
  }
}
.technology .techblock .imgflex {
  align-items: center;
}
@media (min-width: 751px) {
  .technology .techblock .imgflex {
    -moz-column-gap: 2.5em;
         column-gap: 2.5em;
  }
}
@media (min-width: 751px) {
  .technology .techblock .imgflex .imgbox {
    flex: 0 0 61.8%;
    max-width: 61.8%;
  }
}
.technology .techblock .imgflex .imgbox img {
  width: 100%;
}
@media (min-width: 751px) {
  .technology .techblock .imgflex .textbox {
    padding-left: 0;
    flex: 1;
  }
}
@media (min-width: 751px) {
  .technology .techblock:nth-of-type(1) .imgflex .imgbox img {
    display: block;
    width: 71.84%;
    margin-right: auto;
    margin-left: auto;
  }
}
.technology .techblock .h4default {
  line-height: 1.45;
  margin-bottom: 0.8em;
}
@media (min-width: 751px) {
  .technology .techblock .btnbox {
    margin-top: 1.875em;
  }
}
@media (max-width: 750px) {
  .technology .techblock .btnbox {
    margin-top: 2.5rem;
  }
}
@media (min-width: 751px) {
  .technology .techblock .linkbox {
    min-width: 15.875em;
    max-width: 100%;
    margin-left: 0;
  }
}

/* すべての機能に、証明書がある */
.certificate .imgbox img {
  width: 100%;
  border-radius: 2px;
}

/* 事例紹介 */
.caselist {
  padding: 0;
  list-style: none;
}

.casecard {
  background-color: white;
  border-radius: 2px;
  padding: 3em 4.5em;
}
@media (max-width: 750px) {
  .casecard {
    padding: 1.406rem 1.172rem;
  }
}
.casecard:not(:last-of-type) {
  margin-bottom: 2em;
}
.casecard .imgflex {
  align-items: flex-start;
}
@media (min-width: 751px) {
  .casecard .imgflex .imgbox {
    flex: 0 0 29.6%;
    max-width: 29.6%;
  }
}
.casecard .imgflex .imgbox img {
  width: 100%;
  aspect-ratio: 252/193;
  -o-object-fit: cover;
     object-fit: cover;
  border-radius: 2px;
}
@media (min-width: 751px) {
  .casecard .imgflex .textbox {
    padding-left: 2.0625em;
  }
}
.casecard .date {
  font-size: 1em;
  margin: 0.5em 0 0;
}
.casecard .title {
  font-size: 1.25em;
  font-weight: bold;
  line-height: 1.5;
  margin: 0.4em 0 0;
  letter-spacing: normal;
}
.casecard .title a {
  color: inherit;
  text-decoration: none;
}
.casecard .title a:hover {
  text-decoration: underline;
}
.casecard .text {
  margin-top: 0.6em;
}
.casecard .text a {
  display: inline;
}
.casecard .text a:hover {
  text-decoration: underline;
}
@media (min-width: 751px) {
  .casecard .linkbox {
    max-width: 21.25em;
  }
}

.tagbox {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4375em;
  margin-top: 1.875em;
  padding: 0;
  list-style: none;
}
.tagbox li {
  color: white;
  background-color: black;
  border-radius: 2px;
  padding: 0.1875em 1.25em;
  line-height: 1.5;
  white-space: nowrap;
}

/* 導入・共同開発に関する評価（コンテンツ未確定のため枠のみ） */
.voicelist {
  background-color: gainsboro;
  border-radius: 2px;
  height: 30.5em;
}
@media (max-width: 750px) {
  .voicelist {
    height: 14.06rem;
  }
}

/* お問い合わせからの流れ（6ステップ） */
@media (max-width: 750px) {
  .flow .center {
    text-align: left;
  }
}

.stepflow {
  position: relative;
  padding: 0;
  list-style: none;
}
@media (min-width: 751px) {
  .stepflow {
    display: flex;
    justify-content: space-between;
    gap: 0.625em;
  }
  .stepflow::before {
    content: "";
    position: absolute;
    top: 14.75em;
    right: 2.625em;
    left: 1.8125em;
    height: 1px;
    background-color: #8f8975;
  }
  .stepflow::after {
    content: "";
    position: absolute;
    top: 14.28em;
    right: 1.6875em;
    background: url(../images/top/flow_arrow.svg) no-repeat center center;
    background-size: contain;
    width: 0.9375em;
    height: 0.9375em;
  }
}
.stepflow > li {
  background-color: rgba(143, 137, 117, 0.15);
  border-radius: 2px;
  text-align: center;
}
@media (min-width: 751px) {
  .stepflow > li {
    flex: 0 0 calc((100% - 3.125em) / 6);
    max-width: calc((100% - 3.125em) / 6);
    min-height: 17.125em;
    padding-top: 1.75em;
  }
}
@media (max-width: 750px) {
  .stepflow > li {
    display: flex;
    align-items: center;
    padding: 0.7031rem 0.9375rem;
  }
  .stepflow > li:not(:last-of-type) {
    margin-bottom: 0.4688rem;
  }
}
.stepflow > li .icon {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 3.75em;
}
.stepflow > li .icon img {
  max-height: 100%;
}
@media (max-width: 750px) {
  .stepflow > li .icon {
    flex: 0 0 3.75em;
    margin-right: 0.9375rem;
  }
}
.stepflow > li .label {
  font-size: 1.0625em;
  font-weight: bold;
  line-height: 2.24;
  margin-top: 1.5em;
  border-bottom: 1px solid white;
  background-image: repeating-linear-gradient(to bottom, white 0 1px, transparent 1px 1lh);
}
@media (min-width: 751px) {
  .stepflow > li .label {
    width: 83.54%;
    margin-right: auto;
    margin-left: auto;
  }
}
@media (max-width: 750px) {
  .stepflow > li .label {
    flex: 1;
    margin-top: 0;
    line-height: 1.6;
    text-align: left;
  }
}

/* コラム（画像・カテゴリ・日付・タイトル・本文の5要素） */
.columnlist > ul > li {
  grid-row: span 5;
}
.columnlist .imgbox img {
  aspect-ratio: 312/202;
  -o-object-fit: cover;
     object-fit: cover;
  border-radius: 2px;
}
.columnlist .date {
  font-size: 1em;
  margin: 0;
}

/* 補足：抗菌・制菌のエビデンステーブル */
section.date .tablelist {
  border-radius: 2px;
}
section.date table {
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 2px;
  overflow: hidden;
  table-layout: fixed;
  min-width: 1000px;
  font-size: 16px;
}
section.date th, section.date td {
  border: none;
  border-left: 1px solid rgba(0, 0, 0, 0.2);
  text-align: left;
  white-space: normal;
  vertical-align: middle;
  padding: 1em;
}
section.date th:nth-child(1), section.date td:nth-child(1) {
  width: 22.8%;
}
section.date th:nth-child(2), section.date td:nth-child(2) {
  width: 22.8%;
}
section.date th:nth-child(3), section.date td:nth-child(3) {
  width: 15.2%;
}
section.date th:nth-child(4), section.date td:nth-child(4) {
  width: 22.8%;
}
section.date th:nth-child(5), section.date td:nth-child(5) {
  width: 16.4%;
}
section.date th:first-child, section.date td:first-child {
  border-left: none;
}
section.date thead th {
  text-align: center;
  border-right: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  white-space: nowrap;
}
section.date time {
  white-space: nowrap;
}
section.date tbody {
  background-color: rgba(143, 137, 117, 0.15);
}
section.date tbody th, section.date tbody td {
  background-color: transparent;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}
section.date tbody th {
  font-weight: normal;
}
section.date tbody tr:last-of-type th, section.date tbody tr:last-of-type td {
  border-bottom: none;
}
section.date tbody .center {
  text-align: center;
}