@charset "UTF-8";
/*
 * ======================================
 * 追加クラス一覧（共通SCSS取り込み検討用）
 * ======================================
 *
 * .ikb-section / --step / --sm   - セクション外枠（上下 clamp(80px,10vw,140px)・左右 clamp(20px,5vw,40px)、段差分 +40px）
 * .ikb-inner / --narrow          - コンテンツ幅 1400px / 1000px
 * .ikb-step / --black / --paper  - セクション上端の段差区切り（前セクション色で 940→900px の段差を描く）
 * .ikb-vlines / --front          - 背景の4分割縦線（rgba(140,140,140,0.13)）
 * .ikb-hero-line                 - ヒーロー下端の段差ライン（SVG）
 * .ikb-ttl / __en / __ja         - 大英字＋日本語明朝の下辺揃え重ね見出し（heading-big--overlap の値上書き）
 * .ikb-more / --dark             - 「VIEW MORE」下線リンク
 * .ikb-label                     - 横線＋英日ラベル（MESSAGE ／ 代表の想い 等）
 * .ikb-cutphoto                  - 右上を斜めカットした写真＋ずらし枠線
 * .ikb-card                      - 事業案内カード（写真＋英字＋見出し＋本文）
 * .ikb-cells / .ikb-cell         - 罫線区切りの番号付きセル（強み・自社加工ステップ）
 * .ikb-works / .ikb-work         - 施工実績サムネイル（4列基準 flex）
 * .ikb-tag                       - 施工カテゴリ枠ラベル
 * .ikb-badge / --outline         - 正社員募集・未経験歓迎バッジ
 * .ikb-telbox / .ikb-linkbox     - TEL・フォーム・Instagram の誘導ボックス
 * .ikb-cmsform                   - CMSお問い合わせフォームの暗背景上書き
 * .ikb-dl                        - 会社概要・募集要項の定義リスト
 * .ikb-page-hero                 - 下層ページヒーロー
 * .ikb-fcta                      - フッター上の2分割CTAバナー
 * .ikb-footer                    - フッター本体
 * .ikb-lightbox                  - 施工実績ライトボックス
 * .ikb-loader                    - TOPのOP演出（ロゴ表示→幕が上に抜ける）
 * .ikb-spbar                     - SP固定バー（お問い合わせ・採用情報）の値上書き
 *
 * ======================================
 * 共通SCSSに不足していたもの
 * ======================================
 *
 * 値の粒度不足  : clamp() による可変余白・可変文字サイズ（section padding / 見出しサイズ）。gap 14/22/28/56/64px、fz 11/15/17/21px。
 *               header の非表示ブレークポイント（共通 1100px → 本案件 1079px）。
 * 指定方向不足  : ヘッダーで「ナビ＋右側エリア」を1塊にして右寄せする配置（--spread は3分散になる）。
 * 状態不足      : hover 時の「枠線＋文字色」同時変更、透明→黒のヘッダー背景切替（header-bar に状態なし）。
 * 構造不足      : 英字と日本語を grid で下辺揃えに重ねる見出し（--overlap は縦積み前提）、
 *               SPメニューのヘッダー直下ドロップダウン型（sp-nav はフルスクリーン前提）。
 * 装飾パターン不足: セクション境界の段差区切り、4分割縦線背景、写真の斜めカット＋ずらし枠、縦書き英字あしらい。
 *
 */

/* ==========================================================================
   Base（claude-design-output/assets/css/style.css の値に合わせる）
   ========================================================================== */
html {
  -webkit-text-size-adjust: 100%; /* iOS 横向き時の文字自動拡大を防ぐ */
  text-size-adjust: 100%;
}
body {
  color: #fff;
  font-size: 1.6rem;
}
a {
  color: #c9cfae;
  transition: none;
}
a:hover {
  opacity: 1;
}
input,
select,
textarea,
button {
  font-family: inherit;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.ikb-section {
  isolation: isolate;
  position: relative;
  padding: clamp(80px, 10vw, 140px) clamp(20px, 5vw, 40px);
}
.ikb-section--step {
  padding-top: calc(clamp(80px, 10vw, 140px) + 40px);
}
.ikb-section--sm {
  padding: calc(clamp(64px, 8vw, 104px) + 40px) clamp(20px, 5vw, 40px) clamp(64px, 8vw, 104px);
}
.ikb-inner {
  max-width: 1400px;
  margin: 0 auto;
}
.ikb-inner--narrow {
  max-width: 1000px;
}

.ikb-gap-4 { gap: 4px; }
.ikb-gap-12 { gap: 12px; }
.ikb-gap-14 { gap: 14px; }
.ikb-gap-16 { gap: 16px; }
.ikb-gap-18 { gap: 18px; }
.ikb-gap-24 { gap: 24px; }
.ikb-gap-28 { gap: 28px; }
.ikb-gap-32 { gap: 32px; }
.ikb-gap-48 { gap: 48px; }
.ikb-gap-56 { gap: 56px; }
.ikb-gap-64 { gap: 64px; }
.ikb-gap-section { gap: clamp(40px, 5vw, 64px); }
.ikb-gap-works { gap: clamp(40px, 5vw, 56px); }
.ikb-gap-appeal { gap: clamp(48px, 6vw, 80px); }
.ikb-gap-entry { gap: clamp(32px, 4vw, 48px); }

/* 2カラム（auto-fit 460px） */
.ikb-grid-2col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr));
  gap: clamp(40px, 6vw, 96px);
  align-items: stretch;
}
.ikb-grid-2col--center {
  align-items: center;
}
/* 誘導ボックス並び（auto-fit 300px） */
.ikb-grid-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 16px;
}

/* ==========================================================================
   装飾：段差区切り / 縦線 / ヒーロー下ライン
   ========================================================================== */
.ikb-step::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 40px;
  pointer-events: none;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
/* viewBox 1440×40（preserveAspectRatio:none）：M0 0 H940 L900 40 H0 Z */
.ikb-step--black::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 40' preserveAspectRatio='none'%3E%3Cpath d='M0 0 H940 L900 40 H0 Z' fill='%231e1e1e'/%3E%3C/svg%3E"); }
.ikb-step--paper::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 40' preserveAspectRatio='none'%3E%3Cpath d='M0 0 H940 L900 40 H0 Z' fill='%23f3f2ee'/%3E%3C/svg%3E"); }

.ikb-vlines {
  position: absolute;
  inset: 0;
  z-index: -1;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
.ikb-vlines--front {
  z-index: auto;
}
.ikb-vlines::before {
  content: "";
  width: 100%;
  max-width: 1400px;
  height: 100%;
  padding: 0 clamp(20px, 5vw, 40px);
  background:
    linear-gradient(90deg, rgba(140, 140, 140, 0.13) 0 1px, transparent 1px) 0 0 / 25% 100% repeat-x,
    linear-gradient(270deg, rgba(140, 140, 140, 0.13) 0 1px, transparent 1px) 100% 0 / 100% 100% no-repeat;
  background-origin: content-box;
  background-clip: content-box;
}

.ikb-hero-line {
  position: absolute;
  left: 0;
  bottom: 0;
  display: block;
  width: 100%;
  height: 40px;
}

/* ==========================================================================
   見出し（heading-big--overlap ベース：英字と日本語を下辺揃えで重ねる）
   ========================================================================== */
.ikb-ttl {
  display: grid;
  align-items: end;
}
.ikb-ttl--center {
  justify-items: center;
  text-align: center;
}
.ikb-ttl--left {
  text-align: start;
}
.ikb-ttl .ikb-ttl__en,
.ikb-ttl .ikb-ttl__ja {
  grid-area: 1 / 1;
}
.ikb-ttl .ikb-ttl__en {
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  font-size: clamp(56px, 8vw, 104px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: #3a3a3a;
}
.ikb-ttl .ikb-ttl__ja {
  position: relative;
  line-height: 1.2;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(18px, 1.6vw, 22px);
  letter-spacing: 0.16em;
  color: #c9cfae;
}
.ikb-ttl--paper .ikb-ttl__en { color: #dedcd4; }
.ikb-ttl--paper .ikb-ttl__ja { color: #4f5732; }
.ikb-ttl--photo .ikb-ttl__en { color: rgba(255, 255, 255, 0.14); }
.ikb-ttl--gray .ikb-ttl__en { color: #404040; }
.ikb-ttl--max96 .ikb-ttl__en { font-size: clamp(56px, 8vw, 96px); }
.ikb-ttl--long .ikb-ttl__en { font-size: clamp(48px, 7.4vw, 104px); }

/* リード見出し（明朝 clamp 20–26px） */
.ikb-lead-ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.8;
  letter-spacing: 0.08em;
  text-wrap: pretty;
}

/* 本文 16px / lh2.2 */
.ikb-txt {
  font-size: 16px;
  line-height: 2.2;
  color: #dcdcdc;
  text-wrap: pretty;
}
.ikb-txt--ls03 { letter-spacing: 0.03em; }
.ikb-txt--ls04 { letter-spacing: 0.04em; }
.ikb-txt--ls06 { letter-spacing: 0.06em; }
.ikb-txt--lh19 { line-height: 1.9; }
.ikb-txt--lh21 { line-height: 2.1; }
.ikb-txt--dark { color: #333; }
.ikb-txt--plain { text-wrap: wrap; }
.ikb-txt--max960 { max-width: 960px; }
.ikb-txt--center960 {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

/* ラベル（横線＋英日） */
.ikb-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: "Outfit", sans-serif;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: #c9cfae;
}
.ikb-label--paper {
  font-weight: 600;
  color: #4f5732;
}
.ikb-label--fw600 {
  font-weight: 600;
}
.ikb-label__line {
  display: block;
  width: 40px;
  height: 1px;
  background: #6b7546;
}

/* VIEW MORE */
.ikb-more {
  align-self: center;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
  font-family: "Outfit", sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  padding-bottom: 6px;
  border-bottom: 1px solid #fff;
}
.ikb-more:hover {
  color: #c9cfae;
  border-color: #c9cfae;
}
.ikb-more--dark {
  color: #1e1e1e;
  border-bottom-color: #1e1e1e;
}
.ikb-more--dark:hover {
  color: #6b7546;
  border-color: #6b7546;
}
.ikb-more--about {
  margin-top: clamp(24px, 3vw, 40px);
}

/* 署名 */
.ikb-sign {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid #3a3a3a;
}
.ikb-sign--message {
  border-top-color: #3e3e3e;
}
.ikb-sign__pos {
  font-size: 12px;
  color: #bdbdbd;
  letter-spacing: 0.1em;
}
.ikb-sign__name {
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  letter-spacing: 0.2em;
}

/* 斜めカット写真＋ずらし枠 */
.ikb-cutphoto {
  position: relative;
  min-height: 300px;
  margin-right: 18px;
}
.ikb-cutphoto--about {
  margin-top: -24px;
  margin-bottom: -6px;
}
.ikb-cutphoto--message {
  margin-bottom: 18px;
}
.ikb-cutphoto__frame,
.ikb-cutphoto__img {
  position: absolute;
  inset: 0;
  clip-path: polygon(0 0, 82% 0, 100% 14%, 100% 100%, 0 100%);
}
.ikb-cutphoto__frame {
  transform: translate(18px, 18px);
  border: 1px solid #6b7546;
}
.ikb-cutphoto__img {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

/* 写真背景＋黒の乗算 */
.ikb-photo-bg,
.ikb-photo-bg__multiply {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.ikb-photo-bg {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.ikb-photo-bg__multiply {
  background: #1e1e1e;
  mix-blend-mode: multiply;
  opacity: 0.8;
}

/* ==========================================================================
   Header（header / header-bar の値上書き）
   ========================================================================== */
.ikb-header.header {
  z-index: 50;
}
.ikb-header.header-bar {
  right: 0;
  background: transparent;
  box-shadow: none;
  border-bottom: 0;
  transition: background 0.3s;
  color: #fff;
}
.ikb-header.is-solid {
  background: #1e1e1e;
}
.ikb-header .header__inner {
  width: 96%;
  max-width: none;
  height: 76px;
  margin: 0 auto;
  padding: 0;
  gap: 24px;
  transition: height 0.3s;
}
.ikb-header .header__logo {
  display: flex;
  align-items: center;
  gap: 14px;
}
.ikb-header .header__logo img {
  display: block;
  width: auto;
  height: 34px;
  transition: height 0.3s;
}
.ikb-header .header__logo img + img {
  height: 29px;
}
/* ナビ＋右側を1塊で右寄せ（design: .gnav-pc gap 28px） */
.ikb-header .header__nav {
  gap: 26px;
  margin-left: auto;
  margin-right: 4px;
}
.ikb-header .header__nav-item a {
  transition: none;
  gap: 3px;
  padding: 6px 0;
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.08em;
}
.ikb-header .header__nav-item a::after {
  content: none;
}
.ikb-header .header__nav-item a:hover {
  color: #c9cfae;
}
.ikb-header .header__nav-ja {
  margin-top: 0;
  white-space: nowrap;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: inherit;
  line-height: normal;
  color: inherit;
}
.ikb-header .header__nav-en {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 10px;
  line-height: normal;
  letter-spacing: 0.18em;
  color: #a8a8a8;
}
.ikb-header .header__nav-item--current a,
.ikb-header .header__nav-item--current .header__nav-en {
  color: #b5bf8c;
}
.ikb-header .header__right {
  gap: 16px;
  height: auto;
  padding-left: 24px;
  border-left: 1px solid #353535;
}
.ikb-header .header__tel {
  flex-direction: column;
  align-items: stretch;
  transition: none;
  font-family: inherit;
  font-weight: 400;
  font-size: inherit;
  color: #fff;
  line-height: 1.3;
}
.ikb-header .header__tel::before {
  content: none;
}
.ikb-header .header__tel:hover {
  opacity: 1;
}
.ikb-header__tel-num {
  font-family: "Outfit", sans-serif;
  font-size: 17px;
  letter-spacing: 0.06em;
}
.ikb-header__tel-time {
  font-size: 10px;
  color: #bdbdbd;
  letter-spacing: 0.05em;
}
.ikb-header__insta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid #555;
  color: #fff;
}
.ikb-header__insta:hover {
  border-color: #6b7546;
  background: #6b7546;
  color: #fff;
}
.ikb-header .header__cta {
  transition: none;
  flex-direction: row;
  height: 40px;
  padding: 0 18px;
  background: #6b7546;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
}
.ikb-header .header__cta:hover {
  background: #59623a;
  color: #fff;
}
.ikb-header__sptel {
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  margin-left: auto;
  margin-right: 52px; /* ハンバーガー 44px + gap 8px */
  border: 1px solid #444;
  color: #fff;
}
.ikb-header__sptel:hover {
  color: #fff;
}

/* ハンバーガー（header 外・fixed。design の .js-menu 位置に重ねる） */
.nav-toggle {
  top: 16px;
  right: 2%;
  z-index: 60;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: #6b7546;
  backdrop-filter: none;
  border-radius: 0;
}
.nav-toggle__line,
.nav-toggle.is-active .nav-toggle__line:nth-child(n) {
  position: static;
  width: 20px;
  height: 1.5px;
  background: #fff;
  transform: none;
  transition: none;
  opacity: 1;
}
.nav-toggle__line:nth-child(3) {
  width: 14px;
  margin-left: 6px;
}

/* SPメニュー（ヘッダー直下のドロップダウン） */
.sp-nav {
  top: 76px;
  bottom: auto;
  z-index: 50;
  display: none;
  max-height: calc(100vh - 76px);
  padding: 8px 20px 28px;
  background: #1e1e1e;
  border-top: 1px solid #353535;
  border-bottom: 1px solid #353535;
  visibility: visible;
  opacity: 1;
  transition: none;
}
.sp-nav.is-open {
  display: block;
}
.sp-nav__list {
  max-width: none;
  text-align: left;
}
.sp-nav__item,
.sp-nav__item:first-child {
  border-top: 0;
  border-bottom: 1px solid #353535;
  transform: none;
  opacity: 1;
  transition: none;
}
.sp-nav__link {
  justify-content: space-between;
  padding: 16px 0;
  color: #fff;
  font-size: 15px;
  font-weight: 400;
  transition: none;
}
.sp-nav__link::after {
  content: none;
}
.sp-nav__link:hover {
  background: none;
  color: #c9cfae;
}
.ikb-spnav__ja {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
}
.sp-nav__en {
  margin-right: 0;
  padding-left: 0;
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: #a8a8a8;
  opacity: 1;
}
.sp-nav__item.is-current .sp-nav__link,
.sp-nav__item.is-current .sp-nav__en {
  color: #b5bf8c;
}
.sp-nav__bottom {
  max-width: none;
  margin-top: 0;
  opacity: 1;
  transform: none;
  transition: none;
}
.ikb-spnav__btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}
.ikb-spnav__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  color: #fff;
  font-size: 14px;
}
.ikb-spnav__btn:hover {
  color: #fff;
}
.ikb-spnav__btn--contact {
  background: #6b7546;
  font-weight: 400;
}
.ikb-spnav__btn--insta {
  border: 1px solid #555;
}
.sp-nav .ikb-spnav__tel {
  display: block;
  margin-top: 16px;
  font-family: "Outfit", sans-serif;
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: #fff;
  text-align: center;
}
.sp-nav .ikb-spnav__tel::before {
  content: none;
}
.ikb-spnav__time {
  margin-top: 4px;
  font-size: 11px;
  color: #bdbdbd;
  text-align: center;
}

/* ブレークポイント：design は 1079px 以下でハンバーガー（共通は 1100px） */
@media (min-width: 1080px) {
  .ikb-header .header__nav,
  .ikb-header .header__right {
    display: flex;
  }
  .ikb-header .header__cta {
    display: flex;
  }
  .nav-toggle,
  .sp-nav,
  .sp-nav.is-open {
    display: none;
  }
}
/* 1080〜1279px はナビの間隔を詰めて1行に収める */
@media (min-width: 1080px) and (max-width: 1279px) {
  .ikb-header .header__nav {
    gap: 16px;
  }
  .ikb-header .header__inner {
    gap: 16px;
  }
}
/* PC の FV（スクロール前）はロゴを大きく表示し、固定ヘッダー（.is-solid）で通常サイズに戻す
   1279px 以下はナビが折り返すため対象外 */
@media (min-width: 1280px) {
  .ikb-header:not(.is-solid) .header__inner {
    height: 100px;
  }
  .ikb-header:not(.is-solid) .header__logo img {
    height: 50px;
  }
  .ikb-header:not(.is-solid) .header__logo img + img {
    height: 43px;
  }
}
@media (max-width: 1079px) {
  .ikb-header .header__nav,
  .ikb-header .header__right {
    display: none;
  }
  .ikb-header__sptel {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
}

/* ==========================================================================
   Footer CTA / Footer
   ========================================================================== */
.ikb-fcta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  background: #1e1e1e;
  border-top: 1px solid #353535;
}
.ikb-fcta__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: clamp(32px, 4vw, 52px) clamp(20px, 5vw, 72px);
  color: #fff;
}
.ikb-fcta__item:hover {
  color: #fff;
}
.ikb-fcta__item--contact { background: #6b7546; }
.ikb-fcta__item--contact:hover { background: #5d663c; }
.ikb-fcta__item--recruit { background: #353535; }
.ikb-fcta__item--recruit:hover { background: #2b2b2b; }
.ikb-fcta__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ikb-fcta__en {
  font-family: "Outfit", sans-serif;
  font-size: 12px;
  letter-spacing: 0.3em;
}
.ikb-fcta__item--recruit .ikb-fcta__en { color: #c9cfae; }
.ikb-fcta__ttl {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 500;
  letter-spacing: 0.08em;
}
.ikb-fcta__txt {
  font-size: 13px;
  line-height: 1.8;
}
.ikb-fcta__item--recruit .ikb-fcta__txt { color: #d6d6d6; }

.ikb-footer {
  background: #1e1e1e;
  color: #fff;
}
.ikb-footer__body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 48px;
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) clamp(20px, 4vw, 40px) 40px;
}
.ikb-footer__col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ikb-footer__col--info {
  gap: 24px;
}
.ikb-footer__logo {
  display: block;
  width: 170px;
  height: auto;
}
.ikb-footer__addr {
  font-size: 13px;
  line-height: 2;
  color: #d6d6d6;
}
.ikb-footer__label {
  font-family: "Outfit", sans-serif;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: #a8a8a8;
}
.ikb-footer__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}
.ikb-footer__nav a,
.ikb-footer__insta {
  color: #fff;
  font-size: 14px;
}
.ikb-footer__nav a:hover,
.ikb-footer__insta:hover {
  color: #c9cfae;
}
.ikb-footer__tel {
  font-family: "Outfit", sans-serif;
  font-size: 24px;
  letter-spacing: 0.06em;
  color: #fff;
}
.ikb-footer__tel:hover {
  color: #fff;
}
.ikb-footer__time {
  font-size: 13px;
  line-height: 1.9;
  color: #d6d6d6;
}
.ikb-footer__insta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}
.ikb-footer__bottom.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px clamp(20px, 4vw, 40px) 28px;
  border-top: 1px solid #353535;
  text-align: start;
}
.ikb-footer__bottom .ikb-footer__copy {
  font-family: inherit;
  font-size: 11px;
  color: #a8a8a8;
  letter-spacing: 0.08em;
}
.ikb-footer__area {
  font-family: "Outfit", sans-serif;
  font-size: 11px;
  color: #a8a8a8;
  letter-spacing: 0.2em;
}

/* ==========================================================================
   TOP：MV（#slideshow は CMS スライダー差し替え前提の外枠）
   ========================================================================== */
.ikb-mv {
  isolation: isolate;
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(600px, 100vh, 960px);
  padding-top: 76px;
  background: #262626;
  color: #fff;
  overflow: hidden;
}
#slideshow {
  position: absolute;
  inset: 0;
  height: 100%;
}
#slideshow .swiper-slide,
#slideshow .main_slider__inner {
  width: 100%;
  height: 100%;
}
#slideshow img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.ikb-mv__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(270deg, rgba(20, 20, 20, 0.88) 0%, rgba(20, 20, 20, 0.62) 55%, rgba(20, 20, 20, 0.55) 100%);
}
.ikb-mv__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) clamp(20px, 5vw, 72px) clamp(72px, 8vw, 100px);
}
.ikb-mv__en {
  font-family: "Jost", sans-serif;
  font-weight: 500;
  font-size: clamp(16px, 1.6vw, 24px);
  line-height: 2;
  letter-spacing: 0.45em;
  color: #fff;
}
.ikb-mv__copy {
  flex: 0 1 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
  text-align: left;
}
.ikb-mv__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(30px, 4.8vw, 68px);
  line-height: 1.5;
  letter-spacing: 0.1em;
}
.ikb-mv__ttl-em {
  color: #a9b382;
}
.ikb-mv__lead {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 2.1;
  letter-spacing: 0.05em;
  color: #e6e6e6;
}

/* ==========================================================================
   TOP：ABOUT 内 MESSAGE ボックス
   ========================================================================== */
.ikb-message {
  position: relative;
  display: flex;
  justify-content: center;
  width: fit-content;
  max-width: 100%;
  margin: clamp(72px, 9vw, 120px) auto 0;
  padding: clamp(44px, 5vw, 64px) clamp(28px, 5vw, 72px);
  background: #2a2a2a;
  clip-path: polygon(48px 0, 100% 0, 100% 100%, 0 100%, 0 48px);
}
.ikb-message__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 40px;
  align-items: end;
  width: fit-content;
  max-width: 100%;
}
.ikb-message__copy {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.9;
  letter-spacing: 0.08em;
  text-wrap: pretty;
}
.ikb-message__slash {
  position: absolute;
  left: 0;
  top: 0;
  width: 68px;
  height: 1px;
  background: #6b7546;
  transform-origin: 0 0;
  transform: translate(0, 48px) rotate(-45deg);
}

/* ==========================================================================
   カード（事業案内）
   ========================================================================== */
.ikb-grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(20px, 2.5vw, 32px);
}
.ikb-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
  color: #1e1e1e;
}
.ikb-card:hover {
  color: #1e1e1e;
}
.ikb-card__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #d8d6ce;
}
.ikb-card__img--wide {
  aspect-ratio: 16 / 10;
}
.ikb-card__img img,
.ikb-work__img img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ikb-card__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ikb-card__en-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: -8px;
}
.ikb-card__en {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 11px;
  color: #77746b;
  letter-spacing: 0.2em;
}
.ikb-card__body > .ikb-card__en {
  margin-bottom: -8px;
}
.ikb-card__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 21px;
  letter-spacing: 0.06em;
  line-height: 1.6;
}
.ikb-card__txt {
  font-size: 16px;
  line-height: 2;
  color: #444;
  text-wrap: pretty;
}

/* ==========================================================================
   罫線セル（強み・自社加工ステップ）
   ========================================================================== */
.ikb-cells {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  border-top: 1px solid #3a3a3a;
}
.ikb-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 44px clamp(20px, 2.5vw, 36px) 48px;
  border-bottom: 1px solid #3a3a3a;
  border-right: 1px solid #3a3a3a;
}
.ikb-cell--center {
  align-items: center;
  text-align: center;
}
.ikb-cell--center .ikb-cell__ttl {
  text-wrap: wrap;
}
.ikb-cell__num {
  font-family: "Outfit", sans-serif;
  font-size: 44px;
  line-height: 1;
  color: #a9b382;
}
.ikb-cell__en {
  font-family: "Outfit", sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #a8a8a8;
}
.ikb-cell__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 20px;
  line-height: 1.7;
  letter-spacing: 0.05em;
  text-wrap: pretty;
}
.ikb-cell__txt {
  font-size: 15px;
  line-height: 2.1;
  color: #dcdcdc;
  text-wrap: pretty;
}

/* ==========================================================================
   施工実績サムネイル
   ========================================================================== */
.ikb-works {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}
.ikb-works--list {
  gap: 40px 24px;
}
.ikb-work {
  flex: 0 0 calc((100% - 72px) / 4);
  min-width: min(100%, 240px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  color: #1e1e1e;
}
.ikb-work--top {
  min-width: min(100%, 260px);
}
.ikb-work:hover {
  color: #1e1e1e;
}
.ikb-work__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #d8d6ce;
}
.ikb-work__cap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.ikb-tag {
  font-size: 11px;
  padding: 3px 10px;
  border: 1px solid #6b7546;
  color: #4f5732;
  letter-spacing: 0.08em;
}
.ikb-work__name {
  font-size: 12px;
  color: #77746b;
}
.ikb-work__name:empty {
  display: none;
}

/* ==========================================================================
   TOP：RECRUIT
   ========================================================================== */
.ikb-recruit {
  isolation: isolate;
  position: relative;
}
.ikb-recruit__bg,
.ikb-recruit__overlay {
  position: absolute;
  inset: 0;
}
.ikb-recruit__bg {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.ikb-recruit__overlay {
  background: linear-gradient(90deg, rgba(30, 30, 30, 0.96) 40%, rgba(30, 30, 30, 0.6));
}
.ikb-recruit__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 5vw, 64px);
  max-width: 1400px;
  margin: 0 auto;
  padding: calc(clamp(80px, 10vw, 140px) + 40px) clamp(20px, 5vw, 40px) clamp(80px, 10vw, 140px);
}
.ikb-recruit__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: clamp(36px, 5vw, 96px);
}
.ikb-recruit__head {
  flex: 1 1 380px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.ikb-recruit__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.7;
  letter-spacing: 0.1em;
}
.ikb-recruit__body {
  flex: 1 1 380px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-left: clamp(0px, 3vw, 48px);
  border-left: 1px solid #3a3a3a;
}
.ikb-recruit__photo {
  position: relative;
  align-self: center;
  width: min(calc(100% - 64px), 800px);
}
.ikb-recruit__img {
  height: clamp(240px, 30vw, 420px);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.ikb-vtext {
  position: absolute;
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.4em;
  color: #8a8a8a;
  writing-mode: vertical-rl;
  white-space: nowrap;
}
.ikb-vtext--left {
  right: 100%;
  top: 0;
  margin-right: 14px;
}
.ikb-vtext--right {
  left: 100%;
  bottom: 0;
  margin-left: 14px;
}

/* バッジ */
.ikb-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ikb-badges--center {
  justify-content: center;
}
.ikb-badge {
  padding: 6px 14px;
  background: #6b7546;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.1em;
}
.ikb-badge--outline {
  background: none;
  border: 1px solid #6b7546;
  color: #e6ead5;
}

/* ==========================================================================
   誘導ボックス（TEL / FORM / Instagram）
   ========================================================================== */
.ikb-telbox,
.ikb-linkbox {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px;
  background: #1e1e1e;
  border: 1px solid #3a3a3a;
  color: #fff;
}
.ikb-telbox__label,
.ikb-linkbox__label {
  font-family: "Outfit", sans-serif;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: #c9cfae;
}
.ikb-telbox__num {
  font-family: "Outfit", sans-serif;
  font-size: clamp(24px, 2.4vw, 30px);
  letter-spacing: 0.06em;
  color: #fff;
}
.ikb-telbox__num--lg {
  font-size: clamp(26px, 2.6vw, 32px);
}
.ikb-telbox__num:hover {
  color: #fff;
}
.ikb-telbox__time {
  font-size: 12px;
  color: #cfcfcf;
}
.ikb-linkbox:hover {
  border-color: #6b7546;
  color: #fff;
}
.ikb-linkbox--form {
  background: #6b7546;
  border: 0;
}
.ikb-linkbox--form:hover {
  background: #59623a;
}
.ikb-linkbox--form .ikb-linkbox__label {
  color: #fff;
}
.ikb-linkbox--insta {
  background: #2b2b2b;
  border-color: #4a4a4a;
}
.ikb-linkbox__ttl {
  padding-top: 6px;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.08em;
}
.ikb-linkbox__id {
  padding-top: 6px;
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.06em;
}

/* 右端の矢印アイコン（VIEW MORE・CTA と共通の矢印） */
.ikb-linkbox--arrow {
  position: relative;
  padding-right: 64px;
}
.ikb-linkbox__arrow {
  position: absolute;
  top: 50%;
  right: 28px;
  transform: translateY(-50%);
}

.ikb-instabar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: #2b2b2b;
  border: 1px solid #4a4a4a;
  color: #fff;
}
.ikb-instabar:hover {
  border-color: #6b7546;
  color: #c9cfae;
}
.ikb-instabar__label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

/* ==========================================================================
   お問い合わせフォーム（CMS：cms-contact-1-1 / form-pattern-1 を暗背景デザインに合わせて上書き）
   ※ CMS の mail-form.css が後から読み込まれるため、.ikb-cmsform を先頭に付けて詳細度を上げる
   ========================================================================== */
.ikb-cmsform .form-contents {
  padding: clamp(28px, 4vw, 52px);
  background: #1e1e1e;
  border: 1px solid #3a3a3a;
  color: #fff;
}
.ikb-cmsform .form-contents form dl {
  margin-bottom: 0;
}
/* 項目名（上）＋入力欄（下）の縦積み */
.ikb-cmsform .form-contents form dl dt:not(.pattern-exclusion) {
  float: none;
  width: auto;
  margin: 0 0 8px;
  padding: 0;
  font-size: 14px;
}
.ikb-cmsform .form-contents form dl dd:not(.pattern-exclusion) {
  width: auto;
  margin: 0;
  padding: 0 0 22px;
  border-bottom: 0;
  line-height: normal;
}
/* 必須バッジ（項目名の後ろ） */
.ikb-cmsform .form-pattern-1 dl dt:not(.pattern-exclusion) span.required::before,
.ikb-cmsform .form-pattern-1 dl dt:not(.pattern-exclusion) span.optional::before {
  content: none;
}
.ikb-cmsform .form-pattern-1 dl dt:not(.pattern-exclusion) span.required::after {
  content: "必須";
  margin-left: 6px;
  padding: 2px 6px;
  background: #6b7546;
  font-size: 11px;
  color: #fff;
}
/* 同意チェックの項目名（全角スペース）は非表示 */
.ikb-cmsform .form-contents form dl dt:not(.pattern-exclusion):last-of-type {
  display: none;
}

/* 入力欄 */
.ikb-cmsform .form-pattern-1 dd:not(.pattern-exclusion) .textarea {
  width: 100%;
  height: 50px;
  padding: 0 14px;
  border: 1px solid #4a4a4a;
  border-radius: 0;
  background: #2b2b2b;
  color: #fff;
  font-size: 16px;
}
.ikb-cmsform .form-pattern-1 dd:not(.pattern-exclusion) textarea.textarea {
  height: calc(6 * 1.8em + 30px); /* rows 6 相当 */
  padding: 14px;
  line-height: 1.8;
  resize: vertical;
}
.ikb-cmsform .form-pattern-1 dd:not(.pattern-exclusion) .textarea::placeholder {
  color: #8a8a8a;
}
/* 入力エラー（CMS のインライン配色を common.js で is-error に置き換え） */
.ikb-cmsform .form-pattern-1 dd:not(.pattern-exclusion) .textarea.is-error {
  border-color: #c4614f;
  background: #3a2a28;
}

/* お問い合わせ種別：ラジオをボタン型に */
.ikb-cmsform .form-contents form dl dd:has(.radio) {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ikb-cmsform dd label:has(.radio) {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 18px;
  border: 1px solid #4a4a4a;
  font-size: 14px;
  cursor: pointer;
}
.ikb-cmsform dd label:has(.radio:checked) {
  border-color: #6b7546;
  background: #6b7546;
}
.ikb-cmsform dd label:has(.radio:focus-visible) {
  outline: 1px solid #c9cfae;
  outline-offset: 2px;
}
.ikb-cmsform dd .radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

/* プライバシーポリシー同意 */
.ikb-cmsform dd label:has(.checkbox) {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #cfcfcf;
  cursor: pointer;
}
.ikb-cmsform dd .checkbox {
  width: 18px;
  height: 18px;
  margin: 3px 3px 3px 4px;
  accent-color: #6b7546;
}

/* 送信ボタン */
.ikb-cmsform .form-pattern-1 .submit-btn {
  width: 100%;
  height: 60px;
  margin: 0;
  padding: 0;
  background: #6b7546;
  border: 0;
  border-radius: 0;
  color: #fff;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.16em;
}
.ikb-cmsform .form-pattern-1 .submit-btn::before {
  content: none;
}
.ikb-cmsform .form-pattern-1 :not(.pattern-exclusion) button.submit-btn:hover {
  background: #59623a;
}

/* 送信完了・エラーメッセージ */
.ikb-cmsform .form-pattern-1 .form-thanks-msg {
  background: none;
  border: 0;
  padding: 0;
}
.ikb-cmsform .form-contents .form-thanks-msg p {
  font-size: 16px;
  line-height: 2.1;
  color: #dcdcdc;
}
.ikb-cmsform .form-pattern-1 .form-thanks-msg .back-home-btn a {
  border: 0;
  border-radius: 0;
  background: #6b7546;
  color: #fff;
  font-weight: 400;
  letter-spacing: 0.16em;
}
.ikb-cmsform .form-pattern-1 .form-thanks-msg .back-home-btn a:hover {
  background: #59623a;
}
.ikb-cmsform .form-contents .form-err-msg {
  margin: 0 0 22px;
  padding: 16px 20px;
  background: #2b2b2b;
  border: 1px solid #c4614f;
  color: #f0a597;
  font-size: 14px;
  line-height: 1.8;
}

.ikb-privacy__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.1em;
  text-align: center;
}
.ikb-privacy__box {
  display: flex;
  flex-direction: column;
  gap: 20px;
  height: 260px;
  overflow-y: auto;
  padding: clamp(24px, 3vw, 36px);
  background: #1e1e1e;
  border: 1px solid #3a3a3a;
}
.ikb-privacy__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ikb-privacy__head {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.ikb-privacy__txt {
  font-size: 14px;
  line-height: 2;
  color: #dcdcdc;
}

/* ==========================================================================
   下層ページヒーロー（page-hero の値上書き）
   ========================================================================== */
.ikb-page-hero {
  isolation: isolate;
  display: flex;
  align-items: center;
  min-height: clamp(420px, 56vh, 560px);
  padding-top: 76px;
  background: #262626;
  color: #fff;
}
.ikb-page-hero__bg {
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.ikb-page-hero__bg--pos35 {
  background-position: center 35%;
}
.ikb-page-hero .ikb-page-hero__overlay {
  background: linear-gradient(90deg, rgba(20, 20, 20, 0.88) 0%, rgba(20, 20, 20, 0.6) 60%, rgba(20, 20, 20, 0.5) 100%);
}
.ikb-page-hero__content {
  gap: 20px;
  width: 100%;
  max-width: 1400px;
  height: auto;
  margin: 0 auto;
  padding: clamp(40px, 5vw, 64px) clamp(20px, 5vw, 40px) clamp(64px, 7vw, 88px);
}
.ikb-page-hero__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(26px, 2.8vw, 38px);
  line-height: 1.5;
  letter-spacing: 0.12em;
}
.ikb-page-hero__en {
  margin-top: -8px;
  font-family: "Jost", sans-serif;
  font-weight: 500;
  font-size: clamp(13px, 1.1vw, 16px);
  letter-spacing: 0.45em;
  color: #fff;
}
.ikb-page-hero .ikb-hero-line {
  z-index: 3;
}

/* ==========================================================================
   定義リスト（会社概要・募集要項）
   ========================================================================== */
.ikb-dl {
  border-top: 1px solid #1e1e1e;
}
.ikb-dl--profile {
  background: #f3f2ee;
}
.ikb-dl__row {
  display: grid;
  grid-template-columns: minmax(110px, 220px) minmax(0, 1fr);
  border-bottom: 1px solid #d8d6ce;
}
.ikb-dl--recruit .ikb-dl__row {
  grid-template-columns: minmax(100px, 220px) minmax(0, 1fr);
}
.ikb-dl__dt,
.ikb-dl__dd {
  padding: 24px clamp(12px, 2vw, 24px);
  font-size: 16px;
}
.ikb-dl__dt {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: #4f5732;
}
.ikb-dl__dd {
  line-height: 1.9;
}
.ikb-dl--recruit .ikb-dl__dd {
  color: #1e1e1e;
}

/* ロゴに込めた想い */
.ikb-logo-concept {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-top: clamp(16px, 3vw, 32px);
}
.ikb-logo-concept__img {
  flex: 0 1 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  padding: 24px;
}
.ikb-logo-concept__img img {
  display: block;
  width: 100%;
  height: auto;
}
.ikb-logo-concept__body {
  flex: 1 1 320px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.ikb-logo-concept__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.7;
  letter-spacing: 0.06em;
}
.ikb-logo-concept__txt {
  font-size: 15px;
  line-height: 2;
  color: #333;
  text-wrap: pretty;
}

/* 沿革 */
.ikb-history {
  border-top: 1px solid #6b7546;
}
.ikb-history__row {
  display: grid;
  grid-template-columns: minmax(110px, 220px) minmax(0, 1fr);
  align-items: baseline;
  border-bottom: 1px solid #3a3a3a;
}
.ikb-history__year,
.ikb-history__txt {
  padding: 24px clamp(12px, 2vw, 24px);
}
.ikb-history__year {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.08em;
  color: #a9b382;
}
.ikb-history__txt {
  font-size: 16px;
  line-height: 2;
  color: #dcdcdc;
}

/* Googleマップ（embed の値上書き） */
.ikb-map.embed {
  aspect-ratio: 16 / 7;
  min-height: 320px;
  background: #1e1e1e;
  border-radius: 0;
}
.ikb-map iframe {
  filter: grayscale(1);
}

/* ==========================================================================
   事業案内
   ========================================================================== */
/* ページ内リンク */
.ikb-anchor-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 48px;
  margin-top: 8px;
}
.ikb-anchor-nav__link {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
  font-size: 15px;
  letter-spacing: 0.08em;
  padding-bottom: 8px;
  border-bottom: 1px solid #fff;
}
.ikb-anchor-nav__link:hover {
  color: #c9cfae;
  border-color: #c9cfae;
}
.ikb-anchor-nav__num {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  color: #a9b382;
}

/* 斜めカット写真（枠なし） */
.ikb-cutphoto-solid {
  aspect-ratio: 4 / 3;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  clip-path: polygon(0 0, 86% 0, 100% 16%, 100% 100%, 0 100%);
}

/* 対応工事・品目チップ */
.ikb-chips-box {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid #d8d6ce;
}
.ikb-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ikb-chip {
  padding: 8px 14px;
  background: #fff;
  font-size: 15px;
}

/* 関連工事 2列 */
.ikb-grid-related {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: clamp(24px, 3vw, 40px);
}

/* ==========================================================================
   施工実績
   ========================================================================== */
.ikb-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.ikb-filter__btn {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 22px;
  font-size: 15px;
  letter-spacing: 0.06em;
  cursor: pointer;
  border: 1px solid #cfccc2;
  background: transparent;
  color: #1e1e1e;
}
.ikb-filter__btn.is-active {
  border-color: #1e1e1e;
  background: #1e1e1e;
  color: #fff;
}
.ikb-filter__count {
  font-family: "Outfit", sans-serif;
  font-size: 12px;
  opacity: 0.8;
}
.ikb-work--zoom {
  cursor: zoom-in;
}
.ikb-work--zoom:hover {
  opacity: 0.85;
}
.ikb-work.is-hidden {
  display: none;
}

/* Instagramバナー */
.ikb-insta-bnr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 32px clamp(24px, 4vw, 48px);
  background: #1e1e1e;
  border: 1px solid #4a4a4a;
  color: #fff;
}
.ikb-insta-bnr:hover {
  border-color: #6b7546;
  color: #c9cfae;
}
.ikb-insta-bnr__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.06em;
}
.ikb-insta-bnr__id {
  font-family: "Outfit", sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: #a8a8a8;
  letter-spacing: 0.08em;
}

/* ライトボックス */
.ikb-lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(56px, 6vw, 88px) clamp(12px, 6vw, 96px);
  background: rgba(15, 15, 15, 0.94);
}
.ikb-lightbox.is-open {
  display: flex;
}
.ikb-lightbox__figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 100%;
  max-height: 100%;
}
.ikb-lightbox__photo {
  width: min(88vw, 1400px);
  height: calc(100vh - 200px);
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
}
.ikb-lightbox__cap {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}
.ikb-lightbox__tag {
  font-size: 11px;
  padding: 3px 10px;
  border: 1px solid #a9b382;
  color: #c9cfae;
  letter-spacing: 0.08em;
}
.ikb-lightbox__count {
  font-family: "Outfit", sans-serif;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #bdbdbd;
}
.ikb-lightbox__btn {
  position: absolute;
  width: 48px;
  height: 48px;
  border: 1px solid #555;
  background: transparent;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}
.ikb-lightbox__btn:hover {
  border-color: #a9b382;
  color: #c9cfae;
}
.ikb-lightbox__btn--prev,
.ikb-lightbox__btn--next {
  top: 50%;
  transform: translateY(-50%);
}
.ikb-lightbox__btn--prev { left: clamp(4px, 2vw, 32px); }
.ikb-lightbox__btn--next { right: clamp(4px, 2vw, 32px); }
.ikb-lightbox__btn--close {
  right: clamp(8px, 2vw, 32px);
  top: clamp(8px, 2vw, 24px);
  font-family: "Outfit", sans-serif;
  font-size: 20px;
}

/* ==========================================================================
   求人・採用
   ========================================================================== */
.ikb-recruit-lead {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.7;
  letter-spacing: 0.1em;
}
.ikb-appeal {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: clamp(32px, 3vw, 48px);
}
.ikb-appeal__item {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.ikb-appeal__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #2e2e2e;
  clip-path: polygon(0 0, 84% 0, 100% 18%, 100% 100%, 0 100%);
}
.ikb-appeal__img img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.ikb-appeal__img .ikb-appeal__img-pos80 {
  object-position: center 80%;
}
.ikb-appeal__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #3a3a3a;
}
.ikb-appeal__num {
  font-family: "Outfit", sans-serif;
  font-size: 40px;
  line-height: 1;
  color: #a9b382;
}
.ikb-appeal__ttl {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(19px, 1.6vw, 21px);
  line-height: 1.6;
  letter-spacing: 0.06em;
}
.ikb-appeal__txt {
  font-size: 16px;
  line-height: 2.1;
  color: #dcdcdc;
  text-wrap: pretty;
}

/* 福利厚生・職場環境 */
.ikb-benefits {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
  max-width: 960px;
  margin: clamp(8px, 2vw, 24px) auto 0;
  padding: clamp(32px, 4vw, 56px) clamp(20px, 4vw, 56px);
  background: #2b2b2b;
}
.ikb-benefits__list {
  border-top: 1px solid #6b7546;
}
.ikb-benefits__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 22px 8px;
  border-bottom: 1px solid #3a3a3a;
}
.ikb-benefits__ttl {
  flex: 1 0 180px;
  max-width: 220px;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.06em;
}
.ikb-benefits__txt {
  flex: 1 1 320px;
  font-size: 15px;
  line-height: 1.9;
  color: #dcdcdc;
}

/* ==========================================================================
   SP 調整（639px 以下）
   デザインデータは PC 基準の値のみのため、SP での崩れ・はみ出し・1文字残りを補正
   ========================================================================== */
@media (max-width: 639px) {
  /* 長い英字見出し（SHEET METAL / REQUIREMENTS）を1行で画面内に収める */
  .ikb-ttl--sp-fit .ikb-ttl__en {
    font-size: 10.5vw;
    white-space: nowrap;
  }

  /* PC 用の強制改行を外して自然に折り返す */
  .ikb-txt--sp-flow br {
    display: none;
  }
  .ikb-txt--sp-flow .d-inline-block {
    display: inline;
  }

  /* 見出しの1文字残り防止 */
  .ikb-lead-ttl {
    font-size: 22px;
  }
  .ikb-recruit-lead {
    font-size: 24px;
  }

  /* TOP：MESSAGE ボックスを1列に */
  .ikb-message__grid {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 28px;
  }
  .ikb-message__copy {
    font-size: 20px;
  }
  /* 本文の行分けは SP では外して自然に折り返す */
  .ikb-message .ikb-txt .d-block {
    display: inline;
  }
  /* 署名：役職・氏名は途中で折らず、入りきらない場合は氏名を次行へ */
  .ikb-sign {
    flex-wrap: wrap;
    row-gap: 4px;
  }
  .ikb-sign__pos,
  .ikb-sign__name {
    white-space: nowrap;
  }

  /* 求人：魅力カードの見出し */
  .ikb-appeal__ttl {
    font-size: 20px;
  }

  /* 会社概要・募集要項・沿革：項目名の列を詰めて本文幅を確保 */
  .ikb-dl__row,
  .ikb-dl--recruit .ikb-dl__row,
  .ikb-history__row {
    grid-template-columns: 104px minmax(0, 1fr);
  }
  .ikb-dl__dt,
  .ikb-dl__dd,
  .ikb-history__year,
  .ikb-history__txt {
    padding: 20px 10px;
  }
  .ikb-dl__dt {
    font-size: 18px;
  }
  .ikb-history__year {
    font-size: 22px;
  }

  /* 会社概要の表は SP では項目名（上）・内容（下）の縦積み */
  .ikb-dl--profile .ikb-dl__row {
    grid-template-columns: minmax(0, 1fr);
  }
  .ikb-dl--profile .ikb-dl__dt {
    padding: 20px 10px 0;
  }
  .ikb-dl--profile .ikb-dl__dd {
    padding: 6px 10px 20px;
  }

  /* 沿革も SP では年（上）・内容（下）の縦積み */
  .ikb-history__row {
    grid-template-columns: minmax(0, 1fr);
  }
  .ikb-history__year {
    padding: 20px 10px 0;
  }
  .ikb-history__txt {
    padding: 4px 10px 20px;
  }

  /* TOP強み・事業案内の自社加工のセル：左右の罫線を外し、左右余白をセクションと揃えて均等に */
  .ikb-cell {
    padding: 40px 0 44px;
    border-right: 0;
    border-left: 0;
  }

  /* 左揃えの本文：右端の余白が不揃いに見えないよう両端揃え＋通常の折り返しに（中央揃えの文は対象外） */
  .ikb-txt:not(.ikb-txt--plain):not(.ikb-txt--sp-flow),
  .ikb-card__txt,
  .ikb-cell__txt,
  .ikb-appeal__txt,
  .ikb-logo-concept__txt,
  .ikb-benefits__txt,
  .ikb-privacy__txt,
  .ikb-history__txt,
  .ikb-dl__dd,
  .ikb-mv__lead {
    text-align: justify;
    text-wrap: wrap;
  }
  /* Safari は日本語の両端揃えが効かず、1文字に満たない余りが右側にだけ出るため、
     本文の幅を1文字分（1em）の倍数に丸めて中央寄せし、余りを左右均等に振り分ける。
     文字間隔があると Safari は両端揃えをしないので SP では 0 にする */
  .ikb-txt:not(.ikb-txt--plain):not(.ikb-txt--sp-flow),
  .ikb-card__txt,
  .ikb-cell__txt,
  .ikb-appeal__txt,
  .ikb-logo-concept__txt,
  .ikb-privacy__txt,
  .ikb-mv__lead {
    width: round(down, 100%, 1em);
    margin-inline: auto;
    letter-spacing: 0;
  }

  /* フッターのサイトマップは SP では非表示（SP はハンバーガーメニューで遷移） */
  .ikb-footer__col--nav {
    display: none;
  }

  /* 施工実績のサムネイルを少し大きく */
  .ikb-work,
  .ikb-work--top {
    min-width: min(100%, 300px);
  }
}

/* ==========================================================================
   OP演出（ローダー）：ロゴマーク → ライン → 社名ロゴ → 幕が上に抜ける
   ========================================================================== */
html.is-loading {
  overflow: hidden;
}
.ikb-loader {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1e1e1e;
  transition: transform 1.6s cubic-bezier(0.65, 0, 0.35, 1);
}
.ikb-loader.is-skip {
  display: none;
}
.ikb-loader.is-done {
  transform: translateY(-100%);
  pointer-events: none;
}
.ikb-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  transition: opacity 0.8s ease, transform 1.2s ease;
}
.ikb-loader.is-done .ikb-loader__inner {
  opacity: 0;
  transform: translateY(-24px);
}
.ikb-loader__mark {
  display: block;
  width: auto;
  height: 56px;
  opacity: 0;
  animation: ikb-loader-mark 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.2s forwards;
}
.ikb-loader__line {
  display: block;
  width: 120px;
  height: 1px;
  background: #6b7546;
  transform: scaleX(0);
  transform-origin: left center;
  animation: ikb-loader-line 0.7s cubic-bezier(0.65, 0, 0.35, 1) 0.9s forwards;
}
.ikb-loader__text {
  display: block;
  width: auto;
  height: 40px;
  opacity: 0;
  animation: ikb-loader-text 0.8s ease 1.4s forwards;
}
@keyframes ikb-loader-mark {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes ikb-loader-line {
  to { transform: scaleX(1); }
}
@keyframes ikb-loader-text {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (max-width: 639px) {
  .ikb-loader__inner { gap: 18px; }
  .ikb-loader__mark { height: 42px; }
  .ikb-loader__line { width: 90px; }
  .ikb-loader__text { height: 30px; }
}

/* ==========================================================================
   SP固定バー（sp-fixed-bar の値上書き）：639px 以下で画面下部に常時表示
   ========================================================================== */
.ikb-spbar.sp-fixed-bar {
  display: none;
  padding: 0;
  padding-bottom: env(safe-area-inset-bottom);
  background: #1e1e1e;
  border-top: 0;
  box-shadow: none;
}
.ikb-spbar__link.sp-fixed-bar__link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 4px;
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.08em;
}
.ikb-spbar__link--contact { background: #6b7546; }
.ikb-spbar__link--recruit { background: #353535; }
.ikb-spbar__link.sp-fixed-bar__link:hover { color: #fff; }
.ikb-spbar__link--contact:hover { background: #59623a; }
.ikb-spbar__link--recruit:hover { background: #2b2b2b; }

@media (max-width: 639px) {
  .ikb-spbar.sp-fixed-bar {
    display: flex;
  }
  /* 固定バーの高さ分、フッター最下部とSPメニューの下端を空ける */
  .ikb-footer__bottom.footer-bottom {
    padding-bottom: calc(28px + 56px + env(safe-area-inset-bottom));
  }
  .sp-nav {
    max-height: calc(100vh - 76px - 56px);
  }
}

/* ==========================================================================
   SP 文字サイズ（639px 以下）：PC 基準の値を約120%に拡大
   ※ 装飾の大きな英字見出し・番号（.ikb-ttl__en / .ikb-cell__num / .ikb-appeal__num）は対象外
   ※ 見出し系の一部は上の「SP 調整」内で指定済み
   ========================================================================== */
@media (max-width: 639px) {
  body { font-size: 19px; }

  /* 共通 */
  .ikb-ttl .ikb-ttl__ja { font-size: 22px; }
  .ikb-txt { font-size: 19px; }
  .ikb-label,
  .ikb-more { font-size: 14px; }
  .ikb-sign__pos { font-size: 14px; }
  .ikb-sign__name { font-size: 26px; }
  .ikb-vtext { font-size: 14px; }
  .ikb-badge { font-size: 16px; }
  .ikb-tag { font-size: 13px; }
  .ikb-page-hero__ttl { font-size: 31px; }
  .ikb-page-hero__en { font-size: 16px; }

  /* SPメニュー・固定バー */
  .sp-nav__link { font-size: 18px; }
  .sp-nav__en { font-size: 13px; }
  .ikb-spnav__btn { font-size: 17px; }
  .sp-nav .ikb-spnav__tel { font-size: 24px; }
  .ikb-spnav__time { font-size: 13px; }
  .ikb-spbar__link.sp-fixed-bar__link { font-size: 17px; }

  /* フッターCTA・フッター */
  .ikb-fcta__en { font-size: 14px; }
  .ikb-fcta__ttl { font-size: 24px; }
  .ikb-fcta__txt { font-size: 16px; }
  .ikb-footer__addr,
  .ikb-footer__time,
  .ikb-footer__insta { font-size: 16px; }
  .ikb-footer__label,
  .ikb-footer__area,
  .ikb-footer__bottom .ikb-footer__copy { font-size: 13px; }
  .ikb-footer__tel { font-size: 29px; }

  /* MV */
  .ikb-mv__en { font-size: 19px; }
  .ikb-mv__lead { font-size: 18px; }

  /* カード・セル・施工実績 */
  .ikb-card__en,
  .ikb-cell__en { font-size: 13px; }
  .ikb-card__ttl { font-size: 25px; }
  .ikb-card__txt { font-size: 19px; }
  .ikb-cell__ttl { font-size: 24px; }
  .ikb-cell__txt { font-size: 18px; }
  .ikb-work__name { font-size: 14px; }
  .ikb-recruit__ttl { font-size: 26px; } /* 29px だと「か。」が1文字残りになるため */

  /* 電話・リンクボックス */
  .ikb-telbox__label,
  .ikb-linkbox__label { font-size: 13px; }
  .ikb-telbox__num { font-size: 29px; }
  .ikb-telbox__num--lg { font-size: 31px; }
  .ikb-telbox__time { font-size: 14px; }
  .ikb-linkbox__ttl,
  .ikb-linkbox__id { font-size: 24px; }
  .ikb-instabar__label { font-size: 17px; }
  .ikb-insta-bnr__ttl { font-size: 24px; }
  .ikb-insta-bnr__id { font-size: 16px; }

  /* プライバシーポリシー */
  .ikb-privacy__ttl { font-size: 24px; }
  .ikb-privacy__head,
  .ikb-privacy__txt { font-size: 17px; }

  /* 会社概要・沿革・ロゴコンセプト */
  .ikb-dl__dd { font-size: 19px; }
  .ikb-logo-concept__ttl { font-size: 22px; }
  .ikb-logo-concept__txt { font-size: 18px; }
  .ikb-history__txt { font-size: 19px; }

  /* 事業案内・施工実績の絞り込み */
  .ikb-anchor-nav__link,
  .ikb-chip,
  .ikb-filter__btn { font-size: 18px; }
  .ikb-filter__count { font-size: 14px; }
  .ikb-lightbox__tag { font-size: 13px; }
  .ikb-lightbox__count { font-size: 16px; }

  /* 求人 */
  .ikb-appeal__txt { font-size: 19px; }
  .ikb-benefits__ttl { font-size: 22px; }
  .ikb-benefits__txt { font-size: 18px; }
}