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

    :root {
      --blue: #1a1af0;
      --blue-dark: #1212cc;
      --black: #0a0a18;
      --white: #ffffff;
      --bg: #f8f6f2;
      --text-sub: rgba(255,255,255,0.6);
      --border-white: rgba(255,255,255,0.2);
      --font-jp: 'Noto Sans JP', sans-serif;
      --font-en: 'Inter', sans-serif;
      --content-w: 1170px;
      --side: calc((100% - 1170px) / 2);
    }

    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-jp);
      background: var(--white);
      color: var(--black);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    /* ─────────────────────────────────────────────
       Layer: ヘッダー (4124:1571)
    ───────────────────────────────────────────── */
    #header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 var(--side);
      height: 68px;
      background: rgba(248,246,242,0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid #e8e4de;
    }

    .header-logo {
      font-family: var(--font-en);
      font-weight: 900;
      font-size: 24px;
      color: var(--black);
      letter-spacing: -1px;
      text-decoration: none;
    }

    .header-logo span { font-size: 20px; letter-spacing: 0; }

    .header-nav {
      display: flex;
      gap: 32px;
      list-style: none;
    }

    .header-nav a {
      font-size: 14px;
      font-weight: 500;
      color: #666;
      text-decoration: none;
      transition: color 0.2s;
    }

    .header-nav a:hover { color: var(--black); }

    .header-cta {
      display: flex;
      gap: 10px;
    }

    .btn {
      padding: 9px 22px;
      font-size: 14px;
      font-weight: 700;
      border-radius: 6px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.2s;
    }

    .btn-outline {
      color: #444;
      background: transparent;
      border: 1px solid #ccc;
    }

    .btn-outline:hover { border-color: var(--blue); color: var(--blue); }

    .btn-solid {
      color: #fff;
      background: var(--blue);
      border: 1px solid transparent;
    }

    .btn-solid:hover { background: var(--blue-dark); transform: translateY(-1px); }

    /* ─────────────────────────────────────────────
       Layer: FV + Rectangle 3116 (4124:1589, 4124:1590)
    ───────────────────────────────────────────── */
    #fv {
      padding-top: 68px;
      background: var(--bg);
    }

    .fv-inner {
      max-width: var(--content-w);
      margin: 0 auto;
      padding: 80px 0 0;
    }

    .fv-card {
      background: var(--blue);
      border-radius: 24px;
      padding: 80px 80px 72px;
      position: relative;
      overflow: hidden;
      min-height: 416px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .fv-card::before {
      content: '';
      position: absolute;
      top: -120px; right: -80px;
      width: 500px; height: 500px;
      background: rgba(255,255,255,0.04);
      border-radius: 50%;
    }

    .fv-card::after {
      content: '';
      position: absolute;
      bottom: -100px; right: 200px;
      width: 300px; height: 300px;
      background: rgba(255,255,255,0.03);
      border-radius: 50%;
    }

    .fv-eyebrow {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.5);
      margin-bottom: 20px;
    }

    .fv-title {
      font-size: clamp(40px, 4.5vw, 60px);
      font-weight: 900;
      color: #fff;
      line-height: 1.2;
      letter-spacing: -1.5px;
      margin-bottom: 24px;
      position: relative;
      z-index: 1;
    }

    .fv-sub {
      font-size: 16px;
      color: rgba(255,255,255,0.65);
      line-height: 1.85;
      max-width: 540px;
      margin-bottom: 44px;
    }

    .fv-actions {
      display: flex;
      gap: 14px;
    }

    .fv-btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      font-size: 15px;
      font-weight: 700;
      color: var(--blue);
      background: #fff;
      border-radius: 8px;
      text-decoration: none;
      transition: all 0.2s;
    }

    .fv-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

    .fv-btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 15px;
      font-weight: 600;
      color: rgba(255,255,255,0.85);
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 8px;
      text-decoration: none;
      transition: all 0.2s;
    }

    .fv-btn-ghost:hover { background: rgba(255,255,255,0.18); }

    /* ─────────────────────────────────────────────
       Layer: 課題セクション
       (Rectangle 3117–3119: 4124:1591–1593)
       (課題テキスト: 4124:1594–1596)
    ───────────────────────────────────────────── */
    #kadai {
      background: var(--bg);
      padding: 40px 0 80px;
    }

    .kadai-inner {
      max-width: var(--content-w);
      margin: 0 auto;
    }

    .kadai-header {
      text-align: center;
      margin-bottom: 40px;
    }

    .kadai-label {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: #999;
      margin-bottom: 12px;
    }

    .kadai-title {
      font-size: clamp(24px, 2.8vw, 36px);
      font-weight: 900;
      color: var(--black);
      letter-spacing: -0.5px;
    }

    .kadai-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    /* Rectangle 3117 / 3118 / 3119 — 課題カード */
    .kadai-card {
      background: #fff;
      border-radius: 20px;
      padding: 48px 40px;
      min-height: 416px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border: 1px solid #eee;
      transition: box-shadow 0.25s, transform 0.25s;
    }

    .kadai-card:hover {
      box-shadow: 0 20px 48px rgba(0,0,0,0.08);
      transform: translateY(-4px);
    }

    .kadai-num {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: #ccc;
      margin-bottom: 32px;
    }

    .kadai-icon {
      width: 48px;
      height: 48px;
      background: #f0f0f8;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
    }

    .kadai-card-title {
      font-size: 22px;
      font-weight: 900;
      color: var(--black);
      line-height: 1.5;
      letter-spacing: -0.3px;
      flex: 1;
    }

    .kadai-card-title span {
      color: var(--blue);
    }

    .kadai-card-body {
      font-size: 14px;
      color: #888;
      line-height: 1.8;
      margin-top: 16px;
    }

    /* ─────────────────────────────────────────────
       Layer: 企業メニュー (4124:1790, 4124:1791)
       Rectangle 3129 background
    ───────────────────────────────────────────── */
    #menu {
      background: var(--blue);
      padding: 80px 0;
    }

    .menu-inner {
      max-width: var(--content-w);
      margin: 0 auto;
    }

    .menu-header {
      text-align: center;
      margin-bottom: 56px;
    }

    .menu-label {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.4);
      margin-bottom: 12px;
    }

    .menu-title {
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 900;
      color: #fff;
      letter-spacing: -0.5px;
    }

    /* 2–2–1 grid matching Figma positions */
    .menu-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }

    .menu-grid-bottom {
      display: flex;
      justify-content: center;
    }

    /* service card */
    .menu-card {
      background: rgba(255,255,255,0.08);
      border: 1px solid var(--border-white);
      border-radius: 20px;
      padding: 48px 48px 44px;
      transition: background 0.25s;
      cursor: pointer;
    }

    .menu-card:hover { background: rgba(255,255,255,0.13); }

    .menu-card.center {
      max-width: 570px;
      width: 100%;
    }

    .menu-card-num {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.3);
      margin-bottom: 20px;
    }

    .menu-card-icon {
      width: 44px;
      height: 44px;
      background: rgba(255,255,255,0.12);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    .menu-card-title {
      font-size: 20px;
      font-weight: 900;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .menu-card-title small {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: rgba(255,255,255,0.5);
      margin-top: 4px;
    }

    .menu-card-body {
      font-size: 13px;
      color: rgba(255,255,255,0.55);
      line-height: 1.8;
    }

    /* ─────────────────────────────────────────────
       Layer: ユースケース (4124:1597)
       — 3タブ + Aさん・Bさんのカード
    ───────────────────────────────────────────── */
    #usecases {
      background: var(--blue);
      padding: 0 0 96px;
      border-top: 1px solid rgba(255,255,255,0.12);
    }

    .uc-inner {
      max-width: var(--content-w);
      margin: 0 auto;
    }

    .uc-header {
      text-align: center;
      padding: 80px 0 48px;
    }

    .uc-title {
      font-size: clamp(26px, 3vw, 40px);
      font-weight: 900;
      color: #fff;
      letter-spacing: -0.5px;
    }

    /* 3 tabs — each 390px / total 1170px, flush */
    .uc-tabs {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      border-radius: 14px;
      overflow: hidden;
      margin-bottom: 32px;
      border: 1px solid var(--border-white);
    }

    .uc-tab {
      padding: 22px 16px;
      text-align: center;
      font-size: 15px;
      font-weight: 700;
      color: rgba(255,255,255,0.5);
      background: rgba(255,255,255,0.05);
      border: none;
      cursor: pointer;
      transition: all 0.2s;
      border-right: 1px solid var(--border-white);
    }

    .uc-tab:last-child { border-right: none; }

    .uc-tab.active {
      background: rgba(255,255,255,0.15);
      color: #fff;
    }

    .uc-tab:hover:not(.active) { background: rgba(255,255,255,0.09); color: rgba(255,255,255,0.8); }

    /* tab panels */
    .uc-panel { display: none; }
    .uc-panel.active { display: block; }

    /* 2 cards per row */
    .uc-cards {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .uc-card {
      background: rgba(255,255,255,0.08);
      border: 1px solid var(--border-white);
      border-radius: 20px;
      padding: 44px 48px;
      min-height: 400px;
    }

    .uc-card-persona {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: rgba(255,255,255,0.12);
      border-radius: 100px;
      font-size: 13px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 28px;
    }

    .uc-card-persona-dot {
      width: 6px;
      height: 6px;
      background: #fff;
      border-radius: 50%;
    }

    .uc-card-title {
      font-size: 22px;
      font-weight: 900;
      color: #fff;
      line-height: 1.5;
      margin-bottom: 16px;
    }

    .uc-card-body {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
      line-height: 1.85;
    }

    .uc-card-result {
      margin-top: 28px;
      padding: 16px 20px;
      background: rgba(255,255,255,0.08);
      border-radius: 10px;
      border-left: 3px solid rgba(255,255,255,0.4);
    }

    .uc-card-result-label {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.4);
      margin-bottom: 6px;
    }

    .uc-card-result-body {
      font-size: 14px;
      color: rgba(255,255,255,0.8);
      font-weight: 600;
      line-height: 1.6;
    }

    /* ─────────────────────────────────────────────
       Layer: デザイナー向けのAI研修 (4124:1793)
    ───────────────────────────────────────────── */
    #training {
      background: var(--bg);
      padding: 96px 0;
    }

    .training-inner {
      max-width: var(--content-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }

    .training-label {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--blue);
      margin-bottom: 16px;
    }

    .training-title {
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 900;
      color: var(--black);
      line-height: 1.3;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .training-body {
      font-size: 16px;
      color: #666;
      line-height: 1.9;
      margin-bottom: 36px;
    }

    .training-points {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .training-point {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 16px 20px;
      background: #fff;
      border-radius: 10px;
      border: 1px solid #eee;
    }

    .training-point-icon {
      width: 32px;
      height: 32px;
      background: rgba(26,26,240,0.08);
      border-radius: 8px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .training-point-text {
      font-size: 14px;
      font-weight: 600;
      color: var(--black);
      line-height: 1.6;
    }

    .training-visual {
      background: var(--blue);
      border-radius: 24px;
      padding: 56px;
      min-height: 480px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }

    .training-visual::before {
      content: '';
      position: absolute;
      top: -60px; right: -60px;
      width: 240px; height: 240px;
      background: rgba(255,255,255,0.04);
      border-radius: 50%;
    }

    .training-visual-label {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.4);
      margin-bottom: 20px;
    }

    .training-visual-title {
      font-size: 28px;
      font-weight: 900;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 16px;
    }

    .training-visual-body {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
      line-height: 1.8;
    }

    .training-tools {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 32px;
    }

    .training-tool-tag {
      padding: 5px 12px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
      color: rgba(255,255,255,0.7);
      font-family: var(--font-en);
    }

    /* ─────────────────────────────────────────────
       Layer: 多様なAIデザイナー (4124:1609)
       — Designer type tags (4124:1612–1623)
    ───────────────────────────────────────────── */
    #designers {
      background: var(--white);
      padding: 96px 0 120px;
    }

    .designers-inner {
      max-width: var(--content-w);
      margin: 0 auto;
    }

    .designers-header {
      text-align: center;
      margin-bottom: 56px;
    }

    .designers-label {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: #999;
      margin-bottom: 14px;
    }

    .designers-title {
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 900;
      color: var(--black);
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }

    .designers-sub {
      font-size: 16px;
      color: #666;
      line-height: 1.8;
    }

    /* designer type grid — 3×2 matching Figma positions */
    .designers-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    /* Rectangle 3123–3128 — designer type cards */
    .designer-card {
      border: 1.5px solid #e8e8f0;
      border-radius: 16px;
      padding: 36px 36px 32px;
      height: 94px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      transition: all 0.22s;
      position: relative;
      overflow: hidden;
      min-height: 94px;
      height: auto;
      padding: 28px 36px;
    }

    .designer-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: var(--blue);
      opacity: 0;
      transition: opacity 0.22s;
    }

    .designer-card:hover::before { opacity: 1; }
    .designer-card:hover .designer-card-name { color: #fff; }
    .designer-card:hover .designer-card-arrow { color: #fff; opacity: 1; }

    .designer-card-name {
      font-size: 16px;
      font-weight: 800;
      color: var(--black);
      line-height: 1.4;
      position: relative;
      z-index: 1;
      transition: color 0.22s;
    }

    .designer-card-arrow {
      font-size: 18px;
      color: #ccc;
      opacity: 0;
      position: relative;
      z-index: 1;
      transition: all 0.22s;
    }

    /* ─────────────────────────────────────────────
       CTA
    ───────────────────────────────────────────── */
    #cta {
      background: var(--blue);
      padding: 96px 0;
      text-align: center;
    }

    .cta-inner {
      max-width: 760px;
      margin: 0 auto;
    }

    .cta-label {
      font-size: 14px;
      color: rgba(255,255,255,0.6);
      margin-bottom: 16px;
    }

    .cta-title {
      font-size: clamp(36px, 4.5vw, 56px);
      font-weight: 900;
      color: #fff;
      line-height: 1.2;
      letter-spacing: -1.5px;
      margin-bottom: 20px;
    }

    .cta-body {
      font-size: 15px;
      color: rgba(255,255,255,0.65);
      line-height: 1.9;
      margin-bottom: 48px;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      justify-content: center;
    }

    .cta-btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 40px;
      font-size: 16px;
      font-weight: 700;
      color: var(--blue);
      background: #fff;
      border-radius: 8px;
      text-decoration: none;
      transition: all 0.2s;
    }

    .cta-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.25); }

    .cta-btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 36px;
      font-size: 16px;
      font-weight: 600;
      color: rgba(255,255,255,0.85);
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.25);
      border-radius: 8px;
      text-decoration: none;
      transition: all 0.2s;
    }

    .cta-btn-ghost:hover { background: rgba(255,255,255,0.18); }

    /* ─────────────────────────────────────────────
       Footer
    ───────────────────────────────────────────── */
    footer {
      background: #04040c;
      padding: 48px 0 32px;
    }

    .footer-inner {
      max-width: var(--content-w);
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .footer-logo {
      font-family: var(--font-en);
      font-weight: 900;
      font-size: 22px;
      color: #fff;
      text-decoration: none;
    }

    .footer-logo span { color: #a78bfa; }

    .footer-copy {
      font-size: 13px;
      color: #444466;
      font-family: var(--font-en);
    }

    /* ─────────────────────────────────────────────
       Responsive
    ───────────────────────────────────────────── */
    @media (max-width: 1240px) {
      :root { --content-w: calc(100% - 80px); --side: 40px; }
    }