:root {
      --font-heading: 'Montserrat', sans-serif;
      --font-body: 'Roboto', 'Noto Sans JP', sans-serif;
      --color-bg: #ffffff;
      --color-panel: #ffffff;
      --color-border: #cccccc;
      --color-border-hover: #999999;
      --color-text: #000000;
      /* 余白の統一 */
      --space-sm: 1rem;
      /* 段落間・要素内 */
      --space-md: 1.5rem;
      /* テーブル下など */
      --space-lg: 2.5rem;
      /* ブロック間（区切り線の下〜次の見出し/本文） */
      --space-head-line: 1.25rem;
      /* 見出しと区切り線の間 */
      --space-en-ja: 0.5rem;
      /* 英字見出しと和文見出しの間 */
      --space-section: 4.5rem;
      /* セクション先頭 */
    }

    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      height: 100%;
      scroll-behavior: smooth;
    }

    body {
      height: 100%;
    }

    body {
      font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
      color: #fff;
      background: #000;
      line-height: 1.8;
      overflow-x: hidden;
      padding-top: 70px;
    }

    .wrap {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    /* SECTION BASE */
    .section {
      padding: 6rem 0;
      border-bottom: 1px solid #333;
    }

    .section:last-child {
      border-bottom: none;
    }

    .section-label {
      font-size: 0.7rem;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      margin-bottom: 0.5rem;
    }

    .section-title {
      font-size: 1.9rem;
      font-weight: 800;
      letter-spacing: 0.03em;
      margin-bottom: 3.5rem;
    }

    /* GREETING */
    .greeting-title {
      font-size: 2.4rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 2.5rem;
      letter-spacing: 0.02em;
    }

    .greeting-body {
      font-size: 1rem;
      color: #ccc;
      max-width: 660px;
      line-height: 2.1;
    }

    .greeting-body p+p {
      margin-top: 1.2rem;
    }

    /* COMPANY PROFILE */
    .profile-table {
      width: 100%;
      border-collapse: collapse;
    }

    .profile-table tr {
      border-bottom: 1px solid #333;
    }

    .profile-table tr:first-child {
      border-top: 1px solid #333;
    }

    .profile-table th {
      text-align: left;
      padding: 1.5rem 1rem 1.5rem 0;
      font-size: 0.75rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      font-weight: 600;
      width: 200px;
      vertical-align: top;
    }

    .profile-table td {
      padding: 1.5rem 0;
      font-size: 0.96rem;
      color: #ddd;
      line-height: 1.9;
    }

    /* BUSINESS */
    .business-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-top: 1px solid #333;
    }

    .business-item {
      padding: 2.8rem 2.5rem 2.8rem 0;
      border-bottom: 1px solid #333;
    }

    .business-item:nth-child(even) {
      padding-left: 2.5rem;
      padding-right: 0;
      border-left: 1px solid #333;
    }

    .business-item:nth-last-child(-n+2) {
      border-bottom: none;
    }

    .business-num {
      font-size: 0.68rem;
      letter-spacing: 0.18em;
      margin-bottom: 1rem;
    }

    .business-item h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 0.9rem;
      letter-spacing: 0.02em;
      color: #fff;
    }

    .business-item p {
      font-size: 0.88rem;
      line-height: 1.95;
    }

    /* GOVERNANCE */
    .governance-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      border-top: 1px solid #333;
      margin-bottom: 3rem;
    }

    .governance-item {
      padding: 2.5rem 2rem 2.5rem 0;
      border-right: 1px solid #333;
    }

    .governance-item:last-child {
      border-right: none;
      padding-left: 2rem;
      padding-right: 0;
    }

    .governance-item:nth-child(2) {
      padding-left: 2rem;
    }

    .governance-num {
      font-size: 0.68rem;
      letter-spacing: 0.18em;
      color: #444;
      margin-bottom: 1rem;
    }

    .governance-item h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 0.8rem;
      color: #fff;
    }

    .governance-item p {
      font-size: 0.86rem;
      line-height: 1.9;
    }

    .governance-desc {
      font-size: 0.92rem;
      color: #aaa;
      line-height: 2.1;
      max-width: 700px;
      padding-top: 2.5rem;
      border-top: 1px solid #333;
    }

    /* CONTACT */

    .contact-email {
      display: inline-block;
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      text-decoration: none;
      border-bottom: 2px solid #fff;
      padding-bottom: 0.2rem;
      transition: opacity 0.2s;
    }

    .contact-email:hover {
      opacity: 0.35;
    }

    .contact-note {
      margin-top: 1.4rem;
      font-size: 0.78rem;
      color: #444;
    }

    /* FOOTER */
    footer {
      border-top: 1px solid #333;
      padding: 2.5rem 2rem;
      text-align: center;
      font-size: 0.76rem;
      letter-spacing: 0.06em;
    }

    @media (max-width: 768px) {
      .greeting-title {
        font-size: 1.7rem;
      }

      .section-title {
        font-size: 1.5rem;
      }

      .business-grid {
        grid-template-columns: 1fr;
      }

      .business-item:nth-child(even) {
        padding-left: 0;
        border-left: none;
      }

      .business-item:nth-last-child(-n+2) {
        border-bottom: 1px solid #333;
      }

      .business-item:last-child {
        border-bottom: none;
      }

      .governance-grid {
        grid-template-columns: 1fr;
      }

      .governance-item {
        border-right: none;
        border-bottom: 1px solid #333;
        padding: 2rem 0 !important;
      }

      .governance-item:last-child {
        border-bottom: none;
      }

      .profile-table th {
        width: 120px;
      }
    }

    /* MAIN VISUAL（動画のみ・ループ再生） */
    .main-visual {
      position: relative;
      width: 100%;
      height: 67.2vw;
      /* 56vw × 1.2 */
      max-height: 84vh;
      /* 70vh × 1.2 */
      min-height: 336px;
      /* 280px × 1.2 */
      overflow: hidden;
      background: #000;
    }

    .main-visual__video {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0;
      transition: opacity 0.35s ease;
      will-change: opacity;
    }

    .main-visual__video.is-active {
      opacity: 1;
    }

    /* メインビジュアル直下：黒グラデーション（フルワイド・重ねて表示） */
    .main-visual-gradient {
      width: 100%;
      height: 14rem;
      margin-top: -14rem;
      background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, #000 100%);
      pointer-events: none;
      position: relative;
      z-index: 2;
    }

    .main-visual__catch {
      position: absolute;
      left: 2.5rem;
      top: 50%;
      transform: translateY(-50%);
      z-index: 2;
      margin: 0;
      font-size: clamp(1.5rem, 3.5vw, 2.8rem);
      font-weight: 700;
      letter-spacing: 0.06em;
      line-height: 1.5;
      color: #fff;
      text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    }

    /* SP・タブレット：キャッチャー右端よせ・「新たなものがたりが、」で改行 */
    @media (max-width: 1024px) {
      .main-visual__catch .catch-br {
        display: block;
      }
    }

    /* 960px以上：メインビジュアル（動画）をセンター配置 */
    @media (min-width: 960px) {
      .main-visual__video {
        object-position: center center;
      }
    }

    @media (min-width: 1025px) {
      .main-visual__catch .catch-br {
        display: none;
      }
    }

    /* 959px以下：動画を右端スタートで表示 */
    @media (max-width: 959px) {
      .main-visual__video {
        object-position: right center;
      }
    }

    /* ===== ヘッダー（黒背景・白文字・ロゴは黒で目立たせる） ===== */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 5;
      padding: 10px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: #ffffff;
      color: #000000;
    }

    .header.is-scrolled {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
    }

    .header-inner {
      width: 100%;
      max-width: 1400px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .header .logo {
      flex: none;
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: bold;
      font-size: 18px;
      letter-spacing: 0.02em;
      color: #000000;
      text-decoration: none;
    }

    .header-logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      flex-shrink: 0;
      animation: logo-spin 10s linear infinite;
      background: #ffffff;
      border-radius: 50%;
      padding: 2px;
    }

    .header-logo-icon svg {
      width: 100%;
      height: 100%;
      display: block;
    }

    /* ロゴはSVGのインライン指定・currentColorをそのまま使用（元の色） */
    @keyframes logo-spin {
      from {
        transform: rotate(0deg);
      }

      to {
        transform: rotate(360deg);
      }
    }

    .header .nav {
      display: flex;
      flex-direction: row;
      gap: 24px;
      align-items: center;
    }

    /* ===== ハンバーガーボタン（全幅常時表示・参考: code - コピー） ===== */
    .spNav {
      position: fixed;
      z-index: 200;
      top: 10px;
      right: 20px;
      left: auto;
      width: 50px;
      height: 50px;
      cursor: pointer;
    }

    .spNav .spNav-line {
      position: absolute;
      height: 4px;
      right: 0;
      border-radius: 10px;
      background-color: #000;
      transform-origin: center center;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .spNav .spNav-line:first-child {
      top: 16px;
      width: 30px;
    }

    .spNav .spNav-line:last-child {
      top: 30px;
      width: 20px;
    }

    .spNav.act .spNav-line:first-child {
      width: 35%;
      top: 50%;
      transform: rotate(45deg);
      background-color: #fff;
    }

    .spNav.act .spNav-line:last-child {
      width: 35%;
      top: 50%;
      transform: rotate(-45deg);
      background-color: #fff;
    }

    /* 丸背景（メニュー展開時） */
    .site-header__circle-bg {
      position: fixed;
      z-index: 99;
      width: 100px;
      height: 100px;
      border-radius: 50%;
      top: -150px;
      right: -150px;
      left: auto;
      background-color: rgba(0, 0, 0, 0.95);
      transition: transform 0.6s ease-in-out;
      pointer-events: none;
    }

    .site-header__circle-bg.act {
      transform: scale(50);
    }

    /* フルスクリーンスライドメニュー */
    .navsp {
      position: fixed;
      z-index: -1;
      top: 0;
      left: 0;
      width: 0;
      height: 0;
      opacity: 0;
    }

    .navsp.act {
      z-index: 101;
      width: 100%;
      height: 100%;
      opacity: 1;
    }

    .site-header__nav-list {
      position: relative;
      z-index: -1;
      top: 0;
      left: 0;
      /* overflow: hidden;
      overflow-y: auto; */
      width: 100%;
      height: 100%;
      box-sizing: border-box;
      padding: 20% 5% 1rem;
      opacity: 0;
      transition: opacity 0.5s ease-in-out 0s;
      -webkit-overflow-scrolling: touch;
      display: flex;
      flex-direction: column;
    }

    .site-header__nav-list.act {
      z-index: 100;
      background-color: #000;
      opacity: 1;
    }

    .site-header__nav-title {
      font-size: 1.1rem;
      font-weight: 400;
      color: #fff;
      letter-spacing: 0.05em;
      margin: 0 0 6%;
      padding: 0;
    }

    .site-header__nav-contact {
      background: rgba(255, 255, 255, 0.1);
      margin-bottom: 8%;
      border-radius: 4px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .site-header__nav-contact a {
      display: block;
      padding: 12px 20px;
      text-align: center;
      text-decoration: none;
      color: #fff;
    }

    .site-header__nav-contact-en {
      display: block;
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      margin-bottom: 0.25em;
    }

    .site-header__nav-contact-jp {
      display: block;
      font-size: 0.95rem;
      font-weight: 500;
    }

    .site-header__nav-list-menu {
      list-style: none;
      margin: 0 0 4%;
      padding: 0 0 0 4px;
    }

    .site-header__nav-list-menu li {
      margin: 0 0 3%;
      padding-left: 1.4em;
      position: relative;
      font-size: 1rem;
      font-weight: 500;
    }

    .site-header__nav-list-menu li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.65em;
      width: 0.6em;
      height: 1px;
      background: #fff;
    }

    .site-header__nav-list-menu a {
      color: #fff;
      text-decoration: none;
    }

    .site-header__nav-list-menu a:hover {
      opacity: 0.85;
    }

    body.act, html.act {
      overflow: hidden;
    }

    /* ===== お問い合わせフォーム（ダークテーマ） ===== */
    .contact-form-msg {
      padding: 12px 16px;
      margin-bottom: 1.5rem;
      border-radius: 6px;
      font-size: 14px;
      line-height: 1.5;
    }

    .contact-form-msg.is-success {
      background: rgba(0, 128, 0, 0.2);
      color: #8f8;
      border: 1px solid rgba(0, 255, 0, 0.3);
    }

    .contact-form-msg.is-error {
      background: rgba(180, 0, 0, 0.2);
      color: #f88;
      border: 1px solid rgba(255, 100, 100, 0.3);
    }

    .contact-form {
      max-width: 560px;
      margin-top: 1rem;
    }

    .contact-form-row {
      margin-bottom: 1.25rem;
    }

    .contact-form-label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: #ccc;
      margin-bottom: 0.35rem;
    }

    .contact-form-label .required {
      color: #f66;
      font-size: 12px;
      font-weight: 400;
    }

    .contact-form-input,
    .contact-form-select,
    .contact-form-textarea {
      width: 100%;
      padding: 10px 14px;
      font-size: 16px;
      line-height: 1.5;
      color: #fff;
      background: #1a1a1a;
      border: 1px solid #444;
      border-radius: 6px;
      font-family: inherit;
      box-sizing: border-box;
    }

    .contact-form-input::placeholder,
    .contact-form-textarea::placeholder {
      color: #888;
    }

    .contact-form-input:focus,
    .contact-form-select:focus,
    .contact-form-textarea:focus {
      outline: none;
      border-color: #666;
      box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.08);
    }

    .contact-form-select option {
      background: #1a1a1a;
      color: #fff;
    }

    .contact-form-textarea {
      resize: vertical;
      min-height: 120px;
    }

    .contact-form-submit {
      margin-top: 1.5rem;
      margin-bottom: 0;
    }

    .contact-form-btn {
      display: inline-block;
      padding: 12px 32px;
      font-size: 16px;
      font-weight: 700;
      color: #000;
      background: #fff;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      font-family: inherit;
      transition: background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
    }

    .contact-form-btn:hover {
      opacity: 0.9;
    }

    .contact-form-btn:active {
      transform: scale(0.98);
    }

    @media (max-width: 768px) {

      .contact-form-input,
      .contact-form-select,
      .contact-form-textarea {
        font-size: 16px;
      }
    }

    /* 確認画面・完了画面 */
    .sendmail-page {
      min-height: calc(100vh - 70px - 60px);
      display: flex;
      align-items: flex-start;
    }

    .confirm-table {
      width: 100%;
      max-width: 560px;
      margin-top: 1.5rem;
      border-collapse: collapse;
    }

    .confirm-table th,
    .confirm-table td {
      padding: 12px 16px;
      border-bottom: 1px solid #333;
      text-align: left;
      vertical-align: top;
      font-size: 14px;
    }

    .confirm-table th {
      width: 160px;
      color: #aaa;
      font-weight: 700;
      white-space: nowrap;
    }

    .confirm-table td {
      color: #fff;
    }

    .confirm-message {
      white-space: pre-wrap;
      word-break: break-word;
    }

    .confirm-actions {
      margin-top: 2rem;
      max-width: 560px;
    }

    .confirm-btn-group {
      display: flex;
      gap: 1rem;
      justify-content: center;
    }

    .contact-form-btn.is-back {
      background: transparent;
      color: #fff;
      border: 1px solid #666;
    }

    .contact-form-btn.is-back:hover {
      border-color: #999;
    }

    .complete-box {
      max-width: 560px;
      text-align: center;
      margin-top: 1rem;
    }

    .complete-box p {
      margin-bottom: 1rem;
      line-height: 1.8;
    }

    .complete-message {
      font-size: 18px;
      font-weight: 700;
    }

    .error-message {
      font-size: 18px;
      font-weight: 700;
      color: #f88;
    }

    .complete-btn-wrap {
      margin-top: 2rem;
    }

    .complete-btn-wrap .contact-form-btn {
      text-decoration: none;
      display: inline-block;
    }

    @media (max-width: 768px) {
      .confirm-table th {
        display: block;
        width: 100%;
        padding-bottom: 4px;
        border-bottom: none;
      }
      .confirm-table td {
        display: block;
        padding-top: 0;
      }
    }

    /* reCAPTCHA バッジを非表示 */
    .grecaptcha-badge {
      visibility: hidden !important;
    }