/**
 * 基本スタイル
 * リセットCSS、共通スタイルを定義
 */

/* ========================================
 * リセット・ノーマライズ
 * ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
}

/* ========================================
 * コンテナ
 * ======================================== */
.container {
  width: 100%;
  max-width: var(--container-title-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

}

/* ========================================
 * セクション
 * ======================================== */
.section {
  padding: var(--section-padding) 0;
}

.section--alt {
  background-color: var(--color-background-alt);
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-xxl) 0;
  }
}

/* ========================================
 * セクションヘッダー
 * ======================================== */
.section-header {
  text-align: left;
  margin-bottom: var(--spacing-3xl);
}

.section-header__en {
  display: block;
  font-family: var(--font-family-en);
  font-size: var(--font-size-md);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-secondary);
}

.section-header__title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-text-primary);
  display: inline-block;
  position: relative;
}

.section-header__title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  /* 文字色と同じ色 */
}

@media (max-width: 768px) {

  .section-header {
    text-align: left;
    margin-bottom: var(--spacing-xl);
  }

}


/* ========================================
 * ボタン
 * ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-md);
  font-weight: 600;
  transition: all var(--transition-normal);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  border-color: var(--color-secondary);
}

.btn--primary:hover {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-light);
  border-color: var(--color-text-light);
}

.btn--secondary:hover {
  background-color: var(--color-text-light);
  color: var(--color-primary);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn--large {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: var(--font-size-lg);
  background-color: var(--color-secondary);
  max-width: var(--container-max-width);
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* ========================================
 * テキストユーティリティ
 * ======================================== */
.text-center {
  text-align: center;
}

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

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

.text-primary {
  color: var(--color-primary);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-accent {
  color: var(--color-secondary);
}

/* ========================================
 * スペーシングユーティリティ
 * ======================================== */
.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

/* ========================================
 * フェードインアニメーション
 * ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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




/**
 * コンポーネントスタイル
 * 各セクションのスタイルを定義
 */

/* ========================================
 * ヘッダー
 * ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
}


.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  max-width: 1920px;
  width: 100%;
  margin: 0 auto;
  gap: var(--spacing-xl);
}

/* ロゴ */
.header__logo {
  display: flex;
  align-items: baseline;
  padding-left: var(--spacing-sm);
  gap: var(--spacing-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.header__logo-main {
  font-family: serif;
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: 2px;
  width: 160px;
}

.header__logo-sub {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  font-weight: 500;
  margin: auto;
}

/* ナビゲーション */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  row-gap: 4px;
  flex-wrap: wrap;
  margin-left: auto;
  justify-content: flex-end;
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.header__nav-link:hover,
.header__nav-link:focus-visible {
  color: var(--color-secondary);
}

.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  /* 文字色と同期 */
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.header__nav-link:hover::after,
.header__nav-link:focus-visible::after {
  transform: scaleX(1);
}



.header__nav-link--dropdown svg {
  transition: transform var(--transition-fast);
}

.header__nav-dropdown {
  position: relative;
}

/* エントリーボタン */
.header__entry-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: var(--spacing-md) calc(var(--spacing-xl) + 56px) var(--spacing-md) var(--spacing-xl);

  background-color: var(--color-secondary);
  color: var(--color-text-light);

  border: 2px solid var(--color-secondary);
  font-size: var(--font-size-xl);
  font-weight: 600;
  text-decoration: none;

  transition: all 0.3s ease;
  max-width: 320px;
  width: 30%;
  height: 100%;
  margin-left: var(--spacing-md);
  overflow: hidden;
}

.header__entry-btn svg {
  position: absolute;
  right: 0;
  top: 0;
  height: 62px;
  width: 62px;
  padding: 0 16px;
  background: #ffffff;
  color: var(--color-secondary);
  transition: all 0.3s ease;
}

.entry__icon {
  width: 30px;
  height: 30px;
}


.header__entry-btn:hover {
  background-color: #ffffff;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}


/* モバイルメニューボタン */
.header__menu-btn {
  display: none;
  width: 65px;
  height: 65px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  background: var(--color-primary);
}

.header__menu-btn span {
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--color-primary-contrast);
  transition: var(--transition-normal);
}

.header__menu-btn.is-active span:nth-child(1) {
  transform: translateY(12px) rotate(45deg);
}

.header__menu-btn.is-active span:nth-child(2) {
  opacity: 0;
}

.header__menu-btn.is-active span:nth-child(3) {
  transform: translateY(-12px) rotate(-45deg);
}




@media (max-width: 1080px) {

  .entry__icon {
    display: none;
  }

  .header__inner {
    gap: unset;
  }

  .header__entry-btn {
    min-width: unset;
    width: 140px;
    padding: unset;
  }

  .header__menu-btn {
    display: flex;
    width: 65px;
    height: 65px;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 200px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--color-background);
    padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    margin-left: 0;
    justify-content: unset;
  }

  .header__entry-btn svg {
    display: none;
  }

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

  .header__nav-link {
    color: var(--color-text-primary);
    padding: var(--spacing-md) 0;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-xl);
  }

  .header__nav-dropdown {
    width: 100%;
  }

  .header__logo-main {
    width: 100px;
  }

  .header__logo {
    flex-direction: column;
    gap: 2px;
    margin-right: auto;
  }

}


@media (max-width: 768px) {
  .header__menu-btn {
    display: flex;
    width: 60px;
    height: 60px;
  }
}


/* ========================================
 * ヒーローセクション
 * ======================================== */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--color-background);
  overflow: hidden;
  padding-top: var(--header-height);
  padding-bottom: 320px;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--spacing-xl);
  max-width: 1000px;
}

.hero__brand {
  font-family: var(--font-family-en);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.hero__label {
  display: inline-block;
  font-family: var(--font-family-num);
  font-size: var(--font-size-3xl);
  font-weight: 500;
  letter-spacing: 6px;
  color: var(--color-text-light);
  background-color: var(--color-secondary);
  margin-bottom: var(--spacing-xl);
  min-width: clamp(240px, 60vw, 320px);
  line-height: 1;
  padding-top: 0.08em;
  padding-bottom: 0;
}

.hero__title-wrapper {
  position: relative;
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-xl);
}

.hero__title-wrapper::before,
.hero__title-wrapper::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 820px;
  height: 2px;
  background-color: var(--color-text-primary);
}

.hero__title-wrapper::before {
  top: 0;
}

.hero__title-wrapper::after {
  bottom: 0;
}

.hero__title {
  font-family: 'Noto Serif JP', 'Times New Roman', Times, serif;
  font-size: var(--font-size-7xl);
  font-weight: 900;
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  font-feature-settings: "palt" 1;
  letter-spacing: -0.02em;
}

.hero__title-line {
  display: block;
}

.hero__text {
  max-width: 920px;
  margin: 0 auto;
}

.hero__period {
  display: inline-block;
  transform: translateX(0.5em);

}


.hero__description {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-loose);
}



/* 画像スライダー */
.hero__slider {
  position: absolute;
  bottom: 80px;
  left: 0;
  right: 0;
  overflow: hidden;
  padding: var(--spacing-md) 0;
}

.hero__slider-track {
  display: flex;
  gap: var(--spacing-xs);
  animation: slide 60s linear infinite;
  width: max-content;
}

.hero__slider-item {
  flex-shrink: 0;
  width: 320px;
  height: 220px;
  overflow: hidden;
}

.hero__slider-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes slide {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}


@media (max-width: 768px) {
  .hero {
    padding-bottom: 160px;
  }

  .hero__content {
    padding: var(--spacing-lg);
  }

  .hero__description {
    line-height: var(--line-height-normal);
  }

  .hero__label {
    letter-spacing: 4px;
    padding: var(--spacing-xs) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .hero__title-wrapper {
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
  }



  .hero__title-wrapper::before,
  .hero__title-wrapper::after {
    width: 90%;
  }

  .hero__scroll {
    bottom: 260px;
  }

  .hero__slider {
    bottom: 0;
  }

  .hero__slider-item {
    width: 180px;
    height: 140px;
  }

}

/* ========================================
 * トップメッセージセクション
 * ======================================== */

.message__inner {
  display: block;
  max-width: var(--container-max-width);
  text-align: justify;
  margin: auto;
}

.message__inner::after {
  content: "";
  display: block;
  clear: both;
}


.message__photo {
  float: left;
  width: 360px;
  margin: 0 var(--spacing-xxl) var(--spacing-lg) 0;
}


.message__photo-img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
}

.message__photo-caption {
  margin-top: var(--spacing-md);
  text-align: center;
}

.message__photo-name {
  font-size: var(--font-size-3xl);
  font-weight: 500;
  color: var(--color-text-primary);
}

.message__photo-title {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}


.message__text {
  font-size: var(--font-size-xl);
  line-height: var(--line-height-loose);
  color: var(--color-text-primary);
  text-indent: 1em;
}

.message__text p {
  margin-bottom: var(--spacing-xxl);
}

.message__text p:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .message__inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .message__photo {
    float: none;
    width: 250px;
    margin: 0 auto var(--spacing-lg);
  }

  .message__photo-img {
    width: 200px;
    margin: auto;
  }

  .message__text {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-normal);
  }

  .message__text p {
    margin-bottom: var(--spacing-md);
  }

}

/* ========================================
 * 会社紹介セクション
 * ======================================== */

.company__video {
  position: relative;
  max-width: 800px;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  cursor: pointer;
  overflow: hidden;
}

.company__video iframe {
  position: absolute;
  top: 0;
  left: -1px;
  width: 100.2%;
  height: 100%;
  border: 0;
}


/* サムネ */
/* 
.company__video-thumb {
  width: 100%;
  height: 100%;
  position: relative;
}

.company__video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
} */

/* 下からのグラデーション */
/* .company__video-thumb::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 15%;
  background: linear-gradient(to top,
      rgba(0, 0, 0, 0.75) 0%,
      rgba(0, 0, 0, 0.4) 50%,
      rgba(0, 0, 0, 0) 100%);
  pointer-events: none;
} */

/* 青い再生ボタン */
/* .company__video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  background: var(--color-secondary);
  border-radius: 50%;
  border: 2px solid #fff;
  /* ← 三角と同色 */
/*   transform: translate(-50%, -50%);
  transition: background-color .3s ease, border-color .3s ease;
} */

/* 三角 */
/* .company__video-play::before {
  content: '';
  position: absolute;
  left: 40%;
  top: 32%;
  border-left: 30px solid #fff;
  border-top: 18px solid transparent;
  border-bottom: 18px solid transparent;
  transition: border-left-color .3s ease;
}
 */
/* ホバー時 */
/* .company__video:hover .company__video-play {
  background: #fff;
  border-color: var(--color-secondary);
} */

/* .company__video:hover .company__video-play::before {
  border-left-color: var(--color-secondary);
} */


/* ========================================
 * バリューセクション
 * ======================================== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  background-color: var(--color-background);
  max-width: var(--container-max-width);
  margin: auto;
}

.values-card {
  position: relative;
  background-color: #e8eef4;
  padding: var(--spacing-xl) var(--spacing-lg);
  overflow: hidden;
}

.values-card__content {
  position: relative;
  z-index: 2;
}

.values-card__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
  padding-bottom: var(--spacing-sm);
  position: relative;
  padding-bottom: 8px;
}

.values-card__title::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 100% 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
}


.values-card__description {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-loose);
  margin-top: var(--spacing-sm);
  text-align: justify;
}

/* 透かしアイコン */
.values-card__icon {
  position: absolute;
  right: -20px;
  top: -5px;
  width: 200px;
  height: 200px;
  color: var(--color-background);
  z-index: 1;
  opacity: 0.8;
}

.values-card__icon svg {
  width: 100%;
  height: 100%;
}

@media (max-width: 768px) {
  .values-card__title {
    margin-bottom: var(--spacing-xs);
  }


  .values-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .values-card__description {
    line-height: var(--line-height-normal);
  }

  .values-card {
    padding: var(--spacing-md);
    min-height: auto;
  }

  .values-card__icon {
    width: 120px;
    height: 120px;
    right: -10px;
  }
}

/* ========================================
 * 歴史セクション（タイムライン）
 * ======================================== */

/* 折りたたみ状態（初期） */
.history-timeline.is-collapsed {
  overflow: hidden;
  position: relative;
  transition: height 0.45s ease;
  will-change: height;
}

.history-timeline.is-collapsed {
  overflow: hidden;
  position: relative;
}

/* 下端をうっすらフェード（読み切れてない感を出す） */
.history-timeline.is-collapsed::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 90px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1));
  pointer-events: none;
}

.history__more {
  text-align: center;
  margin: -100px 0 100px 0;
}


.history__toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  border: 2px solid var(--color-secondary);
  font-size: var(--font-size-xl);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  max-width: 320px;
  width: 95%;
  height: 50px;
  overflow: hidden;
  margin: 0px 0 0 0;
}


.history-timeline {
  position: relative;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-lg);
  background-color: var(--color-background);
  padding-bottom: 200px;
}

/* 中央の縦ライン */
.history-timeline__line {
  position: absolute;
  left: calc(50% - 2px);
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--color-secondary);
  transform: translateX(-50%);
  margin: 30px 0 120px;
}

/* 各アイテム */
.history-timeline__item {
  position: relative;
  display: flex;
  margin-bottom: var(--spacing-lg);
}

.history-timeline__item:last-child {
  margin-bottom: 0;
}

/* 左側配置 */
.history-timeline__item--left {
  justify-content: flex-start;
  padding-right: calc(50% + 40px);
}

/* 右側配置 */
.history-timeline__item--right {
  justify-content: left;
  padding-left: calc(50% + 40px);
}

.history-timeline__item--right .history-timeline__content {
  text-align: left;
}

/* ドット */
.history-timeline__dot {
  position: absolute;
  left: 50%;
  top: 3px;
  width: 14px;
  height: 14px;
  background-color: var(--color-secondary);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 2;
}


.history-timeline__dot_xl {
  width: 20px;
  height: 20px;
}

/* コンテンツ */
.history-timeline__content {
  max-width: 480px;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}

/* 年号 */
.history-timeline__year {
  display: flex;
  align-items: baseline;
  flex-direction: column;
  line-height: var(--line-height-sm);
  margin-top: 4px;
  flex: 0 0 60px;
}


.history-timeline__item--right .history-timeline__year {
  justify-content: flex-start;
}

.history-timeline__year-num {
  font-family: "Bebas Neue", system-ui, sans-serif;
  font-size: var(--font-size-3xl);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1;
}

.history-timeline__year-era {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* テキスト */
.history-timeline__text {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-normal);
  flex: 1;
}

/* 画像 */
.history-timeline__image {
  display: block;
  overflow: hidden;
  margin: auto;
  margin-top: var(--spacing-md);
  flex: 0 0 100%;
}

.history-timeline__image img {
  display: block;
  height: auto;
  margin: 0 auto;
  border: 1px solid #000;
  box-sizing: border-box;
}

.history-timeline__item--left .history-timeline__image {
  margin-left: auto;
}

.history-timeline--tight {
  margin-top: -400px;
}

.history-timeline--tight2 {
  margin-top: -80px;
}

.history-timeline--tight3 {
  margin-top: -230px;
}

.history-timeline--tight4 {
  margin-top: -300px;
}

.history-timeline__em {
  color: var(--color-secondary);
}

.history-timeline__text.history-timeline__em {
  font-size: var(--font-size-xl);
}

/* レスポンシブ */
@media (max-width: 1020px) {

  .history-timeline {
    padding: 20px 10px 120px 0;
  }

  .history-timeline__line {
    left: 18px;
    margin: 30px 0 50px;
  }

  .history-timeline__item--left,
  .history-timeline__item--right {
    padding-left: var(--spacing-xl);
    padding-right: 0;
    justify-content: flex-start;
    margin-bottom: var(--spacing-md);
  }

  .history-timeline__item--left .history-timeline__content,
  .history-timeline__item--right .history-timeline__content {
    text-align: left;
  }

  .history-timeline__item--left .history-timeline__year,
  .history-timeline__item--right .history-timeline__year {
    justify-content: flex-start;
  }

  .history-timeline__dot {
    left: 20px;
    width: 10px;
    height: 10px;
  }

  .history-timeline__dot_xl {
    width: 15px;
    height: 15px;
  }

  .history-timeline__content {
    max-width: 100%;
  }

  .history-timeline__image {
    width: 65%;
    max-width: 850px;
  }

  .history-timeline__image img {
    max-width: 70%;
  }

  .history-timeline--tight,
  .history-timeline--tight2,
  .history-timeline--tight3,
  .history-timeline--tight4 {
    margin-top: unset;
  }

  .history__more {
    margin: -60px 0 0 0;
  }

}

/* ========================================
 * 制作フローセクション（ジグザグレイアウト）
 * ======================================== */
.process-flow {
  max-width: var(--container-max-width);
  margin: 0 auto;
  position: relative;
}

.process-flow__item {
  display: flex;
  align-items: flex-start;
  margin-bottom: -150px;
  position: relative;
}


.process-flow__item:last-child {
  margin-bottom: 0;
}

/* 左側配置 */
.process-flow__item--left {
  justify-content: flex-start;
}

.process-flow__item--left .process-flow__card {
  margin-right: auto;
}

/* 右側配置 */
.process-flow__item--right {
  justify-content: flex-end;
}

.process-flow__item--right .process-flow__card {
  margin-left: auto;
}

.process-flow>.process-flow__item:last-child {
  margin-bottom: 0;
}


/* カード */
.process-flow__card {
  width: 100%;
  max-width: 520px;
  padding: var(--spacing-lg);
  position: relative;
  z-index: 2;
}

/* 5段階でだんだん濃くする（最濃:#CBD4DB） */
.process-flow__item:nth-child(1) .process-flow__card {
  background-color: #F3F6F8;
}

.process-flow__item:nth-child(2) .process-flow__card {
  background-color: #E7EDF1;
}

.process-flow__item:nth-child(3) .process-flow__card {
  background-color: #DCE4EA;
}

.process-flow__item:nth-child(4) .process-flow__card {
  background-color: #D1DBE2;
}

.process-flow__item:nth-child(5) .process-flow__card {
  background-color: #CBD4DB;
}

.process-flow__card {
  padding: calc(var(--spacing-md) + 15px) var(--spacing-md);
}

.process-flow__card::before,
.process-flow__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  margin: auto var(--spacing-md);
}

.process-flow__card::before {
  top: 15px;
}

.process-flow__card::after {
  bottom: 15px;
}



.process-flow__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.process-flow__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: var(--color-primary-dark);
  color: var(--color-text-light);
  font-family: var(--font-family-num);
  font-size: 58px;
  font-weight: 200;
  flex-shrink: 0;
  line-height: 1;
  /* これ重要 */
}

.process-flow__number span {
  position: relative;
  top: 3px;
  /* ← 下げたいなら +、上げたいなら - */
}


.process-flow__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.process-flow__image {
  width: 100%;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.process-flow__image img {
  width: 100%;
  height: auto;
  display: block;
}

.process-flow__description {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-loose);
  text-align: justify;
}

/* 矢印 */
.process-flow__arrow {
  position: absolute;
  width: 100px;
  height: 100px;
  color: var(--color-accent);
  z-index: 1;
}

.process-flow__arrow svg {
  width: 100%;
  height: 100%;
}

/* 左側カードの右矢印 */
.process-flow__item--left .process-flow__arrow--right {
  right: calc(50% - 10px);
  bottom: -120px;
}

/* 右側カードの左矢印 */
.process-flow__item--right .process-flow__arrow--left {
  left: calc(50% - 10px);
  bottom: -120px;
}

/* レスポンシブ */
@media (max-width: 768px) {

  .process-flow__header {
    margin-bottom: var(--spacing-sm);
  }


  .process-flow__image {
    width: 70%;
    margin: 0 auto var(--spacing-sm);
  }

  .process-flow__description {
    line-height: var(--line-height-normal);
  }


  .process-flow__number {
    width: 40px;
    height: 40px;
    font-size: 40px;
  }

  .process-flow__item--left,
  .process-flow__item--right {
    justify-content: center;
  }

  .process-flow__item--left .process-flow__card,
  .process-flow__item--right .process-flow__card {
    margin: 0 auto;
  }

  .process-flow__card {
    max-width: 100%;
  }



  .process-flow__arrow {
    display: none;
  }

  .process-flow__item {
    margin-bottom: var(--spacing-xl);
  }

  /* モバイル用の縦矢印を追加 */
  .process-flow__item:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: -28px;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 16px solid #CBD4DB;
  }

  .process-flow__card {
    padding: calc(var(--spacing-md) + 10px) var(--spacing-md);
  }

  .process-flow__card::before,
  .process-flow__card::after {
    margin: auto var(--spacing-md);
  }


}

@media (min-width: 769px) {
  .process-flow__item--left .process-flow__card {
    margin-left: 0;
    margin-right: calc(50% + 20px);
  }

  .process-flow__item--right .process-flow__card {
    margin-left: calc(50% + 20px);
    margin-right: 0;
  }



}

/* ========================================
 * 社員紹介セクション
 * ======================================== */
.employees__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: auto;
}

.employee-card {
  display: block;
  text-decoration: none;
  color: inherit;
  /*   background-color: var(--color-background);
 */
  overflow: hidden;
}


.employee-card__media {
  overflow: hidden;
}

.employee-card__photo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.5s ease;
  transform-origin: center;
}

/* 枠の高さを固定（比率を統一） */
.employee-card__media {
  aspect-ratio: 3 / 5;
}


.employee-card:hover .employee-card__photo {
  transform: scale(1.08);
}

.employee-card__content {
  padding: var(--spacing-sm) 0;
}

.employee-card__department {
  font-size: var(--font-size-md);
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.employee-card__name {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  position: relative;
  display: inline-block;
  /* 下線幅を文字幅に合わせる */
}


.employee-card__name::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  /* 下線位置調整 */
  width: 100%;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.employee-card:hover .employee-card__name::after {
  transform: scaleX(1);
}


@media (max-width: 768px) {
  .employees__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .employee-card__content {
    padding: 4px 0px;
  }

}


/* ========================================
 * スナップショットセクション
 * ======================================== */
.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  max-width: var(--container-max-width);
  margin: auto;
}

.snapshot-grid__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
  aspect-ratio: 1;
}

.snapshot-grid__item--small {
  aspect-ratio: 1;
}

.snapshot-grid__item--wide {
  grid-column: span 2;
  aspect-ratio: 2/1;
}

.snapshot-grid__item--large {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: 1;
}

.snapshot-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.snapshot-grid__item:hover img {
  transform: scale(1.1);
}

.snapshot-grid__item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0);
  transition: background var(--transition-normal);
}

.snapshot-grid__item:hover::after {
  background: rgba(0, 0, 0, 0.2);
}

/* ポップアップ */
.snapshot-popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.snapshot-popup.is-open {
  opacity: 1;
  visibility: visible;
}

.snapshot-popup__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(150, 150, 150, 0.75);
}

.snapshot-popup__content {
  position: relative;
  z-index: 1;
  width: min(760px, 90vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  text-align: justify;
  background: var(--color-background);
}

.snapshot-popup.is-open .snapshot-popup__content {
  transform: scale(1);
}

.snapshot-popup__close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(50, 50, 50, 0.5);
  border: none;
  color: var(--color-text-light);
  cursor: pointer;
  z-index: 2;
  transition: background var(--transition-fast);
}

.snapshot-popup__close:hover {
  background: rgba(0, 0, 0, 0.8);
}

.snapshot-popup__info {
  padding: var(--spacing-sm);
  flex: 0 0 auto;
}

.snapshot-popup__image {
  min-height: 0;
  margin: 0 auto;
}

.snapshot-popup__image img {
  max-width: 100.1%;
  max-height: calc(90vh - 140px);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}


.snapshot-popup__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.snapshot-popup__description {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
}

@media (max-width: 768px) {
  .snapshot-grid__item {
    border-radius: 12px;
  }

  .snapshot-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .snapshot-grid__item--wide {
    grid-column: span 2;
  }

  .snapshot-grid__item--large {
    grid-column: span 1;
    grid-row: span 1;
    aspect-ratio: 1/1;
  }

  .snapshot-popup__content {
    width: 85%;
    max-height: 85vh;
  }

  .snapshot-popup__image {
    min-height: 180px;
  }

  .snapshot-popup__image img {
    max-height: calc(85vh - 120px);
  }

  .snapshot-popup__info {
    max-height: none;
  }

  .snapshot-popup__info {
    padding: var(--spacing-sm) var(--spacing-sm);
  }


}

/* ========================================
 * FAQセクション
 * ======================================== */
.faq__tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--spacing-lg);
  max-width: var(--container-max-width);
  margin: auto;
  margin-bottom: var(--spacing-xl);
}

.faq__tab {
  padding: var(--spacing-sm) clamp(18px, 4vw, 32px);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq__tab:hover,
.faq__tab.is-active {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.faq__list {
  max-width: var(--container-max-width);
  margin: 0 auto;
  background-color: var(--color-background);
  padding: var(--spacing-lg) var(--spacing-xxl);
}


.faq__list>.faq__item {
  border-bottom: 1px solid var(--color-primary);
}

.faq__list>.faq__item:not([hidden]):not(:has(~ .faq__item:not([hidden]))) {
  border-bottom: none;
}


.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--color-secondary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
  gap: var(--spacing-md);
  padding: var(--spacing-xs) 0;
}

.faq__question>span {
  min-width: 0;
}


.faq__question::before {
  content: 'Q.';
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-family: var(--font-family-en);
  font-weight: 700;
  font-size: var(--font-size-5xl);
  flex-shrink: 0;
}

.faq__icon-box {
  width: 50px;
  height: 50px;
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  margin-left: auto;
}

.faq__icon {
  width: 40px;
  height: 40px;
  background: none;
  flex: 0 0 auto;
  transform-origin: 50% 50%;
  transition: transform 160ms ease-out;
}

.faq__item.is-open .faq__icon {
  transform: rotate(180deg);
}


.faq__item.is-open .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq__item.is-open .faq__answer {
  max-height: 500px;
}

.faq__answer-inner {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  line-height: var(--line-height-normal);
  text-align: justify;
}

@media (max-width: 768px) {

  .faq__answer-inner {
    padding-top: unset;
  }

  .faq__list {
    padding: var(--spacing-sm) var(--spacing-sm);
  }

  .faq__icon-box {
    width: 30px;
    height: 30px;
  }

  .faq__tab {
    padding: var(--spacing-sm) var(--spacing-sm);
  }

  .faq__tabs {
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
  }


}

/* ========================================
 * CTAセクション
 * ======================================== */
.cta {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  padding: var(--spacing-4xl) 0;
  text-align: center;
}

.cta__content {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.cta__subtitle {
  font-family: var(--font-family-en);
  font-size: var(--font-size-md);
  color: var(--color-secondary);
}

.cta__title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-3xl);
  letter-spacing: 2px;
}

.cta__title__number {
  font-size: 1.175em;
  transform: translateY(0.07em);
  display: inline-block;
}

.cta__buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  padding-bottom: var(--spacing-md);
}

.cta__btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  width: 100%;
  font-weight: 600;
  font-size: var(--font-size-3xl);
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  height: 90px;
  border: 2px solid var(--color-secondary);
  text-decoration: none;
  cursor: pointer;

  transition:
    background-color 0.3s ease,
    color 0.3s ease,
}

.cta__btn svg {
  position: absolute;
  right: 15px;
  height: 60px;
  width: 60px;
  padding: 0 16px;
  background: #ffffff;
  color: var(--color-secondary);
  transition: all 0.3s ease;
}


.cta__btn:hover {
  background-color: #ffffff;
  color: var(--color-secondary);
}


.cta__note {
  padding-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {

  .cta {
    padding: var(--spacing-xl) 0;
  }

  .cta__title {
    margin-bottom: var(--spacing-xl);
  }

  .cta__btn {
    height: 70px;
    padding-right: 60px;
  }

  .cta__btn svg {
    right: 3px;
  }


}

/* ========================================
 * フッター
 * ======================================== */
.footer {
  background-color: var(--color-background-alt);
  color: var(--color-primary);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__inner {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer__logo {
  display: block;
  font-family: var(--font-family-en);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-light);
  width: 200px;
  margin: auto;
}

.footer__org {
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  margin-top: var(--font-size-sm);
}

.footer__bottom {
  margin-top: var(--font-size-sm);
  text-align: center;
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
}

.footer__logo-img {
  width: 180px;
  height: auto;
  display: block;
}


@media (max-width: 768px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__logo {
    width: 160px;
  }

  .footer__nav {
    justify-content: center;
  }
}

/* ========================================
 * レスポンシブ非表示
 * ======================================== */
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .hide-desktop {
    display: none !important;
  }
}