/*
  IKR51 — 視覚トーン: 株式会社井上製麺公式サイト準拠
  https://www.is-seimen.co.jp/ （theme.css / uniontheme）
*/

:root {
  --is-text: #444444;
  --is-black: #111111;
  --is-orange: #ff8a2c;
  --is-panel: #282828;
  --is-bg01: #ebe8e3;
  --is-bg02: #e3dfd8;
  --is-line: #cccccc;
  --container: 1140px;
  --sidebar-w: 140px;
  --font-body-jp: "Noto Sans JP", "游ゴシック", YuGothic, "ヒラギノ角ゴ Pro W3",
    "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, sans-serif;
  --font-mincho: "Noto Serif JP", "游明朝", YuMincho, "ヒラギノ明朝 Pro W3",
    "Hiragino Mincho Pro", serif;
  --font-judson: "Judson", Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 900ms;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .main-visual__media {
    animation: none !important;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body-jp);
  font-size: 1.3rem;
  line-height: 1.8;
  color: var(--is-text);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

body.lang-en {
  font-family: "Noto Sans", var(--font-body-jp);
}

body.lang-zh {
  font-family: "Noto Sans SC", var(--font-body-jp);
}

/* 参考サイトどおりリンク色（フッター内は上書き） */
#contents-area a:link,
#contents-area a:visited {
  color: var(--is-orange);
}

#contents-area a:hover {
  color: var(--is-orange);
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: top;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
  z-index: 99999;
  padding: 8px 14px;
  background: #fff;
  outline: 2px solid var(--is-black);
}

/* ----- HOME: メインビジュアルラッパ ----- */
.mv-wrap {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

/* 左サイドバー（.home .l-header 相当） */
.l-header--home {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 40;
  width: var(--sidebar-w);
  height: 100%;
  min-height: 100vh;
  background: rgba(17, 17, 17, 0.9);
  text-align: center;
  padding: 40px 10px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.h-logo-wrap .tagline-home {
  margin: 0 0 28px;
  color: #cccccc;
  font-size: 1.1rem;
  writing-mode: vertical-rl;
  letter-spacing: 0.35em;
  line-height: 1.6;
  font-weight: 400;
}

.h-logo-wrap .site-logo {
  margin: 0;
  line-height: 1.2;
}

.h-logo-wrap .site-logo a {
  display: block;
  color: #ffffff;
  font-family: var(--font-mincho);
  font-size: 2.6rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.h-logo-wrap .site-logo a:hover {
  color: var(--is-orange);
}

/* 右上ナビ＋言語 */
.hdr-float {
  position: absolute;
  top: 40px;
  right: 50px;
  z-index: 35;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}

.gnavi--home ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gnavi--home a {
  font-family: var(--font-mincho);
  font-size: 1.4rem;
  color: #ffffff;
  text-decoration: none;
  position: relative;
}

.gnavi--home a:hover {
  color: var(--is-orange);
}

.gnavi--home a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 0;
  border-bottom: 1px solid #ffffff;
  transition: width 0.3s ease;
}

.gnavi--home a:hover::after {
  width: 100%;
  border-color: var(--is-orange);
}

.gnavi--home a[aria-current="page"]::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  gap: 6px;
  align-items: center;
}

.lang-switch a {
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  color: #ffffff !important;
  text-decoration: none;
  font-family: var(--font-judson);
}

.lang-switch a[aria-current="true"] {
  border-bottom: 1px solid var(--is-orange);
  padding-bottom: 1px;
}

.lang-switch a:hover {
  color: var(--is-orange) !important;
}

.menu_btn {
  display: none;
  width: 36px;
  height: 22px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.menu_btn::before,
.menu_btn::after,
.menu_btn span {
  content: "";
  display: block;
  height: 2px;
  background: #ffffff;
  position: absolute;
  left: 0;
  right: 0;
}

.menu_btn::before {
  top: 2px;
}

.menu_btn span {
  top: 10px;
}

.menu_btn::after {
  bottom: 2px;
}

.home .menu_btn::before,
.home .menu_btn::after,
.home .menu_btn span {
  background: #111111;
}

.menu_btn::before,
.menu_btn::after,
.menu_btn span {
  transition:
    transform 0.28s var(--ease),
    opacity 0.22s ease,
    top 0.28s var(--ease),
    bottom 0.28s var(--ease);
}

.menu_btn[aria-expanded="true"] span {
  opacity: 0;
}

.menu_btn[aria-expanded="true"]::before {
  top: 10px;
  transform: rotate(45deg);
}

.menu_btn[aria-expanded="true"]::after {
  bottom: 10px;
  transform: rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
  .menu_btn::before,
  .menu_btn::after,
  .menu_btn span {
    transition: none;
  }
}

/* メインビジュアル */
.main-visual {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 480px;
  overflow: hidden;
}

.main-visual__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1);
  animation: isKen 22s ease-in-out infinite alternate;
}

@keyframes isKen {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08);
  }
}

.main-visual__catch {
  position: absolute;
  top: 50%;
  left: 310px;
  transform: translateY(-55%);
  z-index: 12;
  max-width: 420px;
}

.catch-title {
  margin: 0 0 18px;
  font-family: var(--font-mincho);
  font-size: 3.2rem;
  line-height: 1.35;
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 0.06em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
}

.catch-lead {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.85;
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.scroll-ind {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  font-family: var(--font-judson);
  color: #ffffff;
  position: absolute;
  bottom: 0;
  right: 30px;
  z-index: 15;
  font-size: 1.3rem;
  letter-spacing: 1px;
  border-left: 1px solid #ffffff;
  padding: 10px 0 27px 9px;
}

/* ニューススライダー風バー */
.main-news {
  position: absolute;
  z-index: 15;
  left: var(--sidebar-w);
  bottom: 0;
  height: 70px;
  width: min(980px, calc(100% - var(--sidebar-w)));
  background: #ffffff;
  padding: 5px 80px 5px 15px;
  display: flex;
  align-items: center;
}

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

.main-news li {
  margin-bottom: 4px;
}

.main-news a {
  display: block;
  text-decoration: none;
  color: var(--is-black) !important;
  font-size: 1.3rem;
}

.main-news a:hover .news-ttl {
  color: var(--is-orange);
}

.main-news time {
  display: inline-block;
  margin-right: 12px;
  color: #666666;
  font-variant-numeric: tabular-nums;
}

.news-ttl {
  font-weight: 600;
}

.main-news__btn {
  position: absolute;
  right: 0;
  top: 0;
}

.main-news__btn a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 70px;
  background: var(--is-black);
  color: #ffffff !important;
  text-decoration: none;
  font-size: 1.8rem;
  transition: background 0.3s ease;
}

.main-news__btn a:hover {
  background: #444444;
}

/* ----- コンテンツエリア ----- */
#contents-area {
  background: #ffffff;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 15px;
}

/* index_concept 相当 */
.index-concept {
  background-color: var(--is-bg01);
  padding: 80px 0;
}

.index-concept__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 40px 0;
}

.index-concept__ttl {
  flex: 0 0 17%;
  min-width: 120px;
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  font-family: var(--font-mincho);
  font-size: 2.8rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--is-black);
  line-height: 1.25;
  margin: 0;
  padding-top: 8px;
}

.index-concept__body {
  flex: 1 1 78%;
  min-width: 280px;
}

.index-concept__figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 768px) {
  .index-concept__figures {
    grid-template-columns: 1fr 1fr;
    gap: 24px 40px;
  }
}

.figure-detail {
  margin: 0;
}

.figure-detail img {
  width: 100%;
  display: block;
}

.figure-detail figcaption {
  margin-top: 18px;
  font-size: 1.3rem;
  line-height: 1.85;
}

.common-link {
  margin: 30px auto 0;
  width: 100%;
  max-width: 350px;
  text-align: center;
}

.common-link a {
  display: block;
  padding: 18px 12px;
  background: var(--is-black);
  color: #ffffff !important;
  font-size: 1.6rem;
  text-decoration: none;
  transition: background 0.3s ease;
}

.common-link a:hover {
  background: var(--is-orange);
}

/* index_products 相当 */
.index-products {
  background-color: var(--is-bg02);
  padding: 105px 0 120px;
}

.index-products__ttl-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 36px;
}

.index-products__ttl {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  font-family: var(--font-mincho);
  font-size: 2.6rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--is-black);
  margin: 0;
}

.index-products__lead {
  flex: 1;
  text-align: right;
  padding-right: 0;
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.9;
  max-width: 560px;
}

@media (min-width: 900px) {
  .index-products__ttl-row {
    flex-wrap: nowrap;
  }

  .index-products__lead {
    padding-right: 40px;
  }
}

.products-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: 48px;
}

@media (min-width: 900px) {
  .products-feature {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }
}

.products-feature__img {
  position: relative;
  margin: 0;
  min-height: 280px;
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

.products-feature__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.products-feature__img--blank {
  background: #cfcac3;
  min-height: 280px;
}

.products-feature__panel {
  background: #ffffff;
  padding: 32px 32px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.products-feature__panel .ttl {
  display: block;
  font-family: var(--font-mincho);
  font-size: 2rem;
  color: var(--is-black);
  margin-bottom: 16px;
}

.products-feature__panel .txt {
  margin: 0 0 20px;
  font-size: 1.3rem;
}

.products-subgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .products-subgrid {
    grid-template-columns: 1fr 1fr;
  }
}

.products-sub {
  margin: 0;
}

.products-sub .imgarea img {
  width: 100%;
  display: block;
}

.products-sub .txtarea {
  padding: 20px 4px 0;
}

.products-sub .ttl {
  font-family: var(--font-mincho);
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.products-sub .txt {
  margin: 0 0 14px;
}

/* ラインナップ（中央見出し＋区切り線） */
.index-lineup {
  padding: 60px 0 70px;
  position: relative;
  background: #ffffff;
}

.index-lineup::before {
  content: "";
  border-left: 1px solid var(--is-black);
  height: 60px;
  position: absolute;
  left: 50%;
  top: -30px;
  transform: translateX(-50%);
}

.index-lineup .common-ttl01 {
  margin-bottom: 36px;
}

.lineup-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}

.lineup-strip li {
  font-family: var(--font-mincho);
  font-size: 1.35rem;
  padding: 10px 18px;
  border-bottom: 1px solid var(--is-line);
}

/* common_ttl01（井上製麺の見出しパターン） */
.common-ttl01 {
  text-align: center;
  font-family: var(--font-mincho);
  color: var(--is-black);
  font-size: 3.2rem;
  font-weight: 500;
  margin: 0 0 40px;
  line-height: 1.4;
}

.common-ttl01::before {
  content: "";
  display: block;
  height: 3px;
  border-top: 2px solid var(--is-orange);
  border-bottom: 2px solid var(--is-black);
  width: 100px;
  margin: 0 auto 40px;
}

/* Visit / 情報 */
.index-visit {
  padding: 70px 0 90px;
  background-color: var(--is-bg01);
}

.visit-split {
  display: grid;
  gap: 40px;
}

@media (min-width: 900px) {
  .visit-split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.visit-split .txt-block p {
  margin: 0 0 18px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1.3rem;
}

.info-table th,
.info-table td {
  padding: 12px 0;
  border-bottom: 1px solid var(--is-line);
  vertical-align: top;
  text-align: left;
}

.info-table th {
  width: 30%;
  color: #666666;
  font-weight: 500;
}

.menu-board {
  width: 100%;
  max-width: 44em;
  border-collapse: collapse;
  margin: 12px auto 32px;
  font-size: 1.35rem;
}

.menu-board th,
.menu-board td {
  padding: 11px 0;
  border-bottom: 1px solid var(--is-line);
  vertical-align: top;
}

.menu-board th {
  font-weight: 500;
  text-align: center;
  color: var(--is-text);
  padding-right: 10px;
  padding-left: 10px;
}

.menu-board td {
  text-align: center;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  color: var(--is-black);
  padding-right: 10px;
  padding-left: 10px;
}

.menu-board-caption {
  margin: 0 auto 14px;
  font-size: 1.3rem;
  line-height: 1.85;
  color: #555555;
  max-width: 52em;
  text-align: center;
}

.menu-board-note {
  margin: -8px auto 28px;
  font-size: 1.2rem;
  line-height: 1.75;
  color: #666666;
  max-width: 52em;
  text-align: center;
}

/* メニューページ：画像なしブロックの中央レイアウト */
.l-main--menu .inner-section--menu-intro .container,
.l-main--menu .inner-section--menu-body .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.l-main--menu .inner-section--menu-intro p {
  max-width: 52em;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.l-main--menu .inner-section--menu-intro p + p {
  margin-top: 16px;
}

.l-main--menu .inner-section--menu-body h2.common-ttl01 {
  margin-top: 56px;
  margin-bottom: 28px;
  width: 100%;
}

.l-main--menu .inner-section--menu-body h2.common-ttl01:first-of-type {
  margin-top: 0;
}

.l-main--menu .menu-board {
  max-width: min(44em, 94vw);
}

.l-main--menu .menu-board th {
  width: 58%;
}

.l-main--menu .menu-board td {
  width: 42%;
}

.l-main--menu .inner-section--menu-foot .inner-split > div:first-child {
  text-align: center;
}

.l-main--menu .inner-section--menu-foot .inner-split > div:first-child > p {
  max-width: 38em;
  margin-left: auto;
  margin-right: auto;
}

.l-main--menu .inner-section--menu-foot .common-ttl01 {
  margin-bottom: 24px;
}

.l-main--menu .inner-section--menu-foot .common-link {
  margin-top: 16px;
  margin-left: auto;
  margin-right: auto;
  max-width: 320px;
}

.l-main--menu .inner-section--menu-foot figcaption.txt {
  text-align: center;
}

@media (min-width: 900px) {
  .l-main--menu .inner-section--menu-foot .inner-split {
    align-items: center;
  }
}

/* ----- INNER ページヘッダー ----- */
.l-header--inner {
  position: relative;
  z-index: 50;
  width: 100%;
  background: #ffffff;
  border-bottom: 1px solid #e8e8e8;
}

.inner-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  max-width: 2500px;
}

.logo-low a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 18px 32px;
  background: var(--is-panel);
  color: #ffffff !important;
  font-family: var(--font-mincho);
  font-size: 2.2rem;
  letter-spacing: 0.14em;
  text-decoration: none;
}

.logo-low a:hover {
  color: var(--is-orange) !important;
}

.tagline-low {
  display: none;
  align-items: center;
  padding: 12px 28px;
  font-size: 1.2rem;
  color: var(--is-text);
}

@media (min-width: 900px) {
  .tagline-low {
    display: flex;
  }
}

.gnavi--inner {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.gnavi--inner ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
  list-style: none;
  margin: 0;
  padding: 12px 18px;
}

.gnavi--inner a {
  font-family: var(--font-mincho);
  font-size: 1.4rem;
  color: var(--is-black);
  text-decoration: none;
  position: relative;
}

.gnavi--inner a:hover {
  color: var(--is-orange);
}

.gnavi--inner a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  border-bottom: 1px solid #444444;
  transition: width 0.3s ease;
}

.gnavi--inner a:hover::after {
  width: 100%;
}

.gnavi--inner a[aria-current="page"]::after {
  width: 100%;
}

.inner-lang {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-left: 1px solid #eeeeee;
}

.inner-lang a {
  font-family: var(--font-judson);
  font-size: 1.2rem;
  color: var(--is-black) !important;
  text-decoration: none;
}

.inner-lang a[aria-current="true"] {
  border-bottom: 1px solid var(--is-orange);
}

.hdr-tools-mobile {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding-right: 12px;
}

/* lower_ttl（サブページヒーロー） */
.lower-ttl {
  position: relative;
  min-height: 100vh;
  height: auto;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.lower-ttl__title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: min(90vw, 720px);
  margin: 0;
  font-family: var(--font-mincho);
  font-size: clamp(2.8rem, 4vw, 4.2rem);
  font-weight: 500;
  color: #ffffff;
  line-height: 1.25;
  letter-spacing: 0.08em;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 0 24px rgba(0, 0, 0, 0.25);
}

.scroll-ind--sub {
  bottom: 40px;
}

/* l-contents */
.l-contents {
  padding-bottom: 40px;
}

.l-main {
  line-height: 1.8;
}

.inner-section {
  padding: 70px 0;
}

.inner-section--tone {
  background-color: var(--is-bg01);
}

.inner-split {
  display: grid;
  gap: 36px;
}

@media (min-width: 900px) {
  .inner-split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 48px;
  }
}

.map-embed {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 0;
  margin-top: 16px;
}

.faq-list details {
  border-bottom: 1px solid var(--is-line);
  padding: 18px 0;
}

.faq-list summary {
  cursor: pointer;
  font-family: var(--font-mincho);
  font-size: 1.6rem;
  color: var(--is-black);
}

.faq-list details p {
  margin: 12px 0 0;
  color: var(--is-text);
}

/* フッター（写真背景の代わりにダークトーン） */
.l-footer {
  background: #1f1f1f url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cg fill='%23282828'%3E%3Cpath d='M0 0h40v40H0zM40 40h40v40H40z'/%3E%3C/g%3E%3C/svg%3E");
  color: #ffffff;
}

.l-footer a:link,
.l-footer a:visited {
  color: #ffffff !important;
}

.l-footer a:hover {
  color: var(--is-orange) !important;
}

.l-footer__in {
  max-width: var(--container);
  margin: 0 auto;
  padding: 44px 15px 50px;
}

.f-info .corp {
  margin-bottom: 16px;
}

.f-info .corp strong {
  display: block;
  font-family: var(--font-mincho);
  font-size: 2.4rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.f-menu ul {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
}

.f-menu li {
  border-right: 1px solid rgba(255, 255, 255, 0.45);
  padding: 0 10px;
}

.f-menu li:last-child {
  border-right: 0;
}

.f-menu a {
  text-decoration: none;
  font-size: 1.3rem;
}

.f-copy {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid #444444;
  text-align: center;
  font-family: var(--font-mincho);
  font-size: 1.3rem;
  color: #aaaaaa;
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-shift {
  transform: translateY(30px);
}

/* ----- レスポンシブ（767px以下は井上製麺SP準拠） ----- */
.overlay-nav {
  display: none;
}

@media (max-width: 767px) {
  html {
    font-size: 56%;
  }

  body {
    font-size: 1.4rem;
  }

  body:not(.home) {
    padding-top: 50px;
  }

  .l-header--inner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 70;
  }

  .l-header--inner .inner-bar {
    flex-wrap: nowrap;
    align-items: center;
    min-height: 50px;
  }

  .l-header--inner .hdr-tools-mobile {
    flex-shrink: 0;
  }

  .l-header--inner .logo-low {
    flex-shrink: 0;
  }

  .l-header--inner .menu_btn::before,
  .l-header--inner .menu_btn::after,
  .l-header--inner .menu_btn span {
    background: #111111;
  }

  .l-header--inner .menu_btn {
    min-width: 44px;
    min-height: 44px;
    padding: 11px 9px;
    box-sizing: border-box;
  }

  .home .menu_btn::before,
  .home .menu_btn::after,
  .home .menu_btn span {
    background: #111111;
  }

  .home #contents-area {
    margin-top: 0;
  }

  .l-header--home {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    min-height: 0;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 0 12px;
    background: #ffffff;
    border-bottom: 1px solid #eeeeee;
    z-index: 70;
  }

  .h-logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .h-logo-wrap .tagline-home {
    display: none;
  }

  .h-logo-wrap .site-logo a {
    color: var(--is-black);
    font-size: 2rem;
    padding: 10px 14px;
    background: var(--is-panel);
    color: #ffffff !important;
  }

  .hdr-float {
    position: fixed;
    top: 50px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(28, 28, 28, 0.98);
    padding: 32px 28px 40px;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 36px;
    z-index: 65;
    min-height: calc(100vh - 50px);
    min-height: calc(100dvh - 50px);
  }

  .hdr-float.is-open {
    transform: translateX(0);
  }

  .gnavi--home ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
  }

  .gnavi--home li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .gnavi--home li:first-child {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .gnavi--home a {
    display: block;
    color: #ffffff;
    font-size: 1.7rem;
    padding: 16px 4px;
    letter-spacing: 0.08em;
  }

  .gnavi--home a::after {
    content: none;
  }

  .gnavi--home a[aria-current="page"] {
    color: var(--is-orange);
  }

  .lang-switch {
    justify-content: center;
    gap: 14px;
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    padding-top: 8px;
  }

  .lang-switch a {
    color: #ffffff !important;
    font-size: 1.3rem;
    padding: 6px 4px;
  }

  .menu_btn {
    display: block;
  }

  .mv-wrap {
    padding-top: 50px;
  }

  .main-visual {
    height: calc(100vh - 50px);
    min-height: 420px;
  }

  .main-visual__catch {
    left: 50%;
    transform: translate(-50%, -52%);
    width: min(300px, 88vw);
    text-align: center;
  }

  .catch-title {
    font-size: 2.6rem;
  }

  .scroll-ind {
    bottom: 120px;
    right: 15px;
    font-size: 1rem;
    padding: 6px 0 16px 6px;
  }

  .main-news {
    left: 0;
    width: 100%;
    opacity: 0.94;
    padding-right: 0;
    height: auto;
    min-height: 70px;
    flex-wrap: wrap;
  }

  .main-news__btn {
    display: none;
  }

  .index-concept__ttl {
    writing-mode: horizontal-tb;
    flex: 1 1 100%;
    letter-spacing: 0.08em;
  }

  .inner-bar .logo-low a {
    min-height: 50px;
    padding: 12px 18px;
    font-size: 1.8rem;
  }

  .gnavi--inner {
    display: none;
  }

  .inner-lang {
    display: none;
  }

  .hdr-tools-mobile {
    display: flex;
  }

  .menu_btn--dark::before,
  .menu_btn--dark::after,
  .menu_btn--dark span {
    background: #111111;
  }

  .overlay-nav {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 36px;
    position: fixed;
    inset: 50px 0 0 0;
    min-height: calc(100vh - 50px);
    min-height: calc(100dvh - 50px);
    background: rgba(28, 28, 28, 0.98);
    z-index: 60;
    padding: 32px 28px 40px;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    overflow-y: auto;
  }

  .overlay-nav.is-open {
    transform: translateX(0);
  }

  .overlay-nav nav {
    width: 100%;
  }

  .overlay-nav ul {
    list-style: none;
    margin: 0 auto;
    padding: 0;
    max-width: 360px;
    width: 100%;
  }

  .overlay-nav li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .overlay-nav li:first-child {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .overlay-nav a {
    display: block;
    padding: 16px 4px;
    color: #ffffff !important;
    font-family: var(--font-mincho);
    font-size: 1.7rem;
    letter-spacing: 0.08em;
    text-decoration: none;
    border-bottom: 0;
  }

  .overlay-nav a[aria-current="page"] {
    color: var(--is-orange) !important;
  }

  .overlay-lang {
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 14px;
    width: 100%;
    max-width: 360px;
    padding-top: 8px;
  }

  .overlay-lang a {
    border: 0;
    font-size: 1.3rem;
    padding: 6px 4px;
    color: var(--is-orange) !important;
  }

  .lower-ttl__title {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    padding: 0 16px;
  }
}

@media (min-width: 768px) {
  .overlay-nav {
    display: none !important;
  }

  .hdr-tools-mobile {
    display: none !important;
  }
}

/* 下層ヒーロー背景（各ページ） */
.lower-ttl--concept {
  background-image: url("../img/concept-hero.png");
}

.lower-ttl--menu {
  background-image: url("../img/menu-hero.png");
}

.lower-ttl--access {
  background-image: url("../img/access-hero.png");
}

.lower-ttl--faq {
  background-image: url("../img/faq-hero.png");
}