/* ════════════════════════════════════════
   index.css — トップページ固有スタイル
   hero, about, services, process, cases, contact, animations
════════════════════════════════════════ */
/* ─── HERO ─── */
  .hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding-top: 80px;
  }

  .hero-left {
    padding: 80px 48px 80px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
  }

  .hero-tag {
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .hero-tag::before {
    content: '';
    display: block;
    width: 32px;
    height: 1px;
    background: var(--accent);
  }

  .hero h1 {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(42px, 5vw, 64px);
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
  }

  .hero h1 em {
    font-style: italic;
    color: var(--accent);
  }

  .hero-sub {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.9;
    margin-bottom: 48px;
    max-width: 420px;
  }

  .hero-actions {
    display: flex;
    gap: 16px;
    align-items: center;
  }

  .btn-primary {
    background: var(--ink);
    color: var(--white);
    padding: 16px 32px;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
    display: inline-block;
  }
  .btn-primary:hover { background: var(--accent); transform: translateY(-2px); }

  .btn-ghost {
    color: var(--ink);
    font-size: 13px;
    letter-spacing: 0.08em;
    text-decoration: none;
    border-bottom: 1px solid var(--ink);
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
  }
  .btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

  .hero-right {
    background: var(--ink);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero-visual {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Grid pattern background */
  .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
  }

  .hero-diagram {
    position: relative;
    z-index: 2;
    padding: 60px;
    width: 100%;
  }

  .wwd-card {
    border: 1px solid rgba(255,255,255,0.12);
    padding: 16px 20px;
    background: rgba(255,255,255,0.03);
    transition: background 0.2s, border-color 0.2s;
    cursor: default;
  }
  .wwd-card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(255,255,255,0.25);
  }

  .diagram-title {
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.3);
    margin-bottom: 32px;
  }

  .flow-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .flow-step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    position: relative;
    padding-bottom: 28px;
  }

  .flow-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 19px;
    top: 42px;
    bottom: 0;
    width: 1px;
    background: rgba(255,255,255,0.15);
  }

  .step-num {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Mono', monospace;
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    flex-shrink: 0;
    background: rgba(255,255,255,0.03);
  }

  .step-content { padding-top: 8px; }
  .step-label {
    font-size: 14px;
    color: var(--white);
    font-weight: 500;
    margin-bottom: 4px;
    letter-spacing: 0.02em;
  }
  .step-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    line-height: 1.6;
  }

  .step-highlight .step-num {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--white);
  }
  .step-highlight .step-label { color: #7a9dff; }

  /* ─── NUMBERS ─── */
  .numbers {
    background: var(--white);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 48px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .number-item {
    text-align: center;
    padding: 20px;
    border-right: 1px solid var(--line);
  }
  .number-item:last-child { border-right: none; }

  .number-val {
    font-family: 'DM Serif Display', serif;
    font-size: 52px;
    line-height: 1;
    color: var(--ink);
    margin-bottom: 6px;
  }
  .number-val span {
    font-size: 24px;
    color: var(--accent);
  }

  .number-label {
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--muted);
  }

  /* ─── ABOUT ─── */
  .about {
    padding: 120px 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
  }

  .section-tag {
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.25em;
    color: var(--accent);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .section-tag::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--accent);
  }

  .about h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 24px;
  }

  .about p {
    color: var(--muted);
    line-height: 1.9;
    margin-bottom: 16px;
    font-size: 14px;
  }

  .about-visual {
    background: var(--ink);
    padding: 48px;
    position: relative;
    overflow: hidden;
  }

  .about-quote {
    font-family: 'DM Serif Display', serif;
    font-size: 28px;
    font-style: italic;
    color: var(--white);
    line-height: 1.4;
    position: relative;
    z-index: 2;
  }

  .about-quote-mark {
    font-family: 'DM Serif Display', serif;
    font-size: 120px;
    color: rgba(26,79,255,0.3);
    position: absolute;
    top: 16px; left: 32px;
    line-height: 1;
  }

  /* ─── SERVICES ─── */
  .services {
    background: var(--white);
    padding: 120px 48px;
  }

  .services-header {
    max-width: 1200px;
    margin: 0 auto 64px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
  }

  .services h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 40px;
  }

  .services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .services-row2 {
    max-width: 1200px;
    margin: 2px auto 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--line);
    border: 1px solid var(--line);
    border-top: none;
  }
  @media (min-width: 900px) {
    .services-grid { grid-template-columns: repeat(3, 1fr); }
  }

  .service-card {
    background: var(--white);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
    transition: background 0.3s;
    cursor: default;
  }
  .service-card:hover { background: var(--accent-light); }

  .service-num {
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.15em;
    margin-bottom: 24px;
  }

  .service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    position: relative;
  }

  .service-icon-it {
    border: 2px solid var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
  }

  .service-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
  }

  .service-card p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 28px;
  }

  .service-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .service-items li {
    font-size: 12px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .service-items li::before {
    content: '—';
    color: var(--accent);
    font-family: 'Space Mono', monospace;
  }

  /* ─── PROCESS ─── */
  .process {
    padding: 120px 48px;
    background: var(--paper);
    max-width: 100%;
  }
  .process > * {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
  }

  .process-header {
    margin-bottom: 64px;
  }

  .process h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 40px;
    margin-bottom: 56px;
  }

  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: relative;
    gap: 0;
  }

  .process-steps::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 10%;
    right: 10%;
    height: 1px;
    background: var(--line);
    z-index: 0;
  }

  .process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 24px;
    position: relative;
    z-index: 1;
  }

  .process-dot {
    width: 56px;
    height: 56px;
    background: var(--white);
    border: 2px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Mono', monospace;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
    transition: all 0.3s;
  }
  .process-step:hover .process-dot {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
  }

  .process-step h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .process-step p {
    font-size: 12px;
    color: var(--muted);
    line-height: 1.7;
  }

  /* ─── CASES ─── */
  .cases {
    background: var(--ink);
    padding: 120px 48px;
  }

  .cases-header {
    max-width: 1200px;
    margin: 0 auto 64px;
  }

  .cases-header .section-tag { color: rgba(255,255,255,0.4); }
  .cases-header .section-tag::before { background: rgba(255,255,255,0.4); }

  .cases h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 40px;
    color: var(--white);
  }

  .cases-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(255,255,255,0.1);
  }
  @media (max-width: 900px) {
    .cases-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 600px) {
    .cases-grid { grid-template-columns: 1fr; }
  }

  .case-card {
    background: var(--ink);
    padding: 40px;
    border: 1px solid rgba(255,255,255,0.06);
    transition: background 0.3s;
  }
  .case-card:hover { background: #1a1a1a; }

  .case-tag {
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    color: var(--accent);
    margin-bottom: 16px;
    background: rgba(26,79,255,0.15);
    display: inline-block;
    padding: 4px 10px;
  }

  .case-card h3 {
    font-size: 16px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.5;
  }

  .case-card p {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    line-height: 1.8;
    margin-bottom: 24px;
  }

  .case-result {
    font-family: 'DM Serif Display', serif;
    font-size: 28px;
    color: #7a9dff;
  }
  .case-result-label {
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    letter-spacing: 0.1em;
    margin-top: 4px;
  }

  /* ─── CTA ─── */
  .cta-section {
    padding: 120px 48px;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }

  .cta-section h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 16px;
  }

  .cta-section p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.9;
  }

  .cta-form {
    background: var(--white);
    padding: 48px;
    border: 1px solid var(--line);
  }

  .form-title {
    font-family: 'Space Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--muted);
    margin-bottom: 28px;
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
  }

  .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
  }

  .form-group label {
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--muted);
  }
  .label-en {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--muted);
    opacity: 0.6;
    margin-left: 4px;
    font-weight: 400;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    border: 1px solid var(--line);
    padding: 12px 14px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 14px;
    color: var(--ink);
    background: var(--paper);
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
  }

  .form-group input:focus,
  .form-group textarea:focus,
  .form-group select:focus {
    border-color: var(--accent);
    background: var(--white);
  }

  .form-group textarea { resize: vertical; min-height: 100px; }

  .form-submit {
    background: var(--ink);
    color: var(--white);
    border: none;
    padding: 16px 32px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 13px;
    letter-spacing: 0.1em;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
  }
  .form-submit:hover { background: var(--accent); }

  .form-success {
    display: none;
    text-align: center;
    padding: 48px 24px;
  }
  .form-success-icon {
    font-size: 48px;
    margin-bottom: 16px;
  }
  .form-success h3 {
    font-family: 'DM Serif Display', serif;
    font-size: 24px;
    margin-bottom: 12px;
  }
  .form-success p {
    font-size: 13px;
    color: var(--muted);
  }

  
/* ─── ANIMATIONS ─── */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .hero-tag { animation: fadeUp 0.6s ease both; }
  .hero h1 { animation: fadeUp 0.6s 0.15s ease both; }
  .hero-sub { animation: fadeUp 0.6s 0.3s ease both; }
  .hero-actions { animation: fadeUp 0.6s 0.45s ease both; }

  
/* ════════════════════════════════════════
     DESIGN ENHANCEMENTS
  ════════════════════════════════════════ */

  /* ── グレインオーバーレイ ── */
  .grain-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.045;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: grainShift 3s steps(5) infinite;
  }
  @keyframes grainShift {
    0%   { background-position: 0 0; }
    20%  { background-position: -40px -60px; }
    40%  { background-position: 30px -30px; }
    60%  { background-position: -20px 50px; }
    80%  { background-position: 60px 10px; }
    100% { background-position: 0 0; }
  }

  /* ── スクロールリビール ── */
  [data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  }
  [data-reveal][data-reveal-delay="100"] { transition-delay: 0.1s; }
  [data-reveal][data-reveal-delay="200"] { transition-delay: 0.2s; }
  [data-reveal][data-reveal-delay="300"] { transition-delay: 0.3s; }
  [data-reveal].visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ── ヒーロー h1 拡大 ── */
  .hero h1 {
    font-size: clamp(52px, 6.5vw, 84px);
    letter-spacing: -0.02em;
    line-height: 1.08;
  }

  /* ── サービスカード hover 改善 ── */
  .service-card {
    transition: background 0.3s ease;
  }
  .service-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .service-card:hover {
    background: var(--paper);
  }
  .service-card:hover::after {
    transform: scaleX(1);
  }
  .service-card:hover .service-num {
    font-size: 13px;
    letter-spacing: 0.2em;
  }

  /* ── Aboutビジュアルパネル 斜線テクスチャ ── */
  .about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 18px,
      rgba(255, 255, 255, 0.025) 18px,
      rgba(255, 255, 255, 0.025) 19px
    );
    pointer-events: none;
  }
  .about-quote {
    font-size: 32px;
  }
  .about-quote-mark {
    font-size: 160px;
    color: rgba(26, 79, 255, 0.2);
  }

  /* ── 事例カード hover リフト ── */
  .case-card {
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .case-card:hover {
    background: #141414;
    border-color: rgba(122, 157, 255, 0.28);
    transform: translateY(-5px);
  }
  .case-result {
    font-size: 32px !important;
    color: #7a9dff;
    line-height: 1;
    margin-bottom: 4px;
    transition: transform 0.3s ease;
  }
  .case-card:hover .case-result {
    transform: scale(1.06);
  }

  /* ── プロセスステップ アクセント ── */
  .process-step:first-child .process-dot {
    border-color: var(--accent);
    color: var(--accent);
  }
  .process-steps::before {
    background: linear-gradient(90deg, var(--accent), var(--line) 40%);
  }

  /* ── セクションタグ 洗練 ── */
  .section-tag {
    font-size: 11px;
    letter-spacing: 0.28em;
  }

  /* ── ボタン 洗練 ── */
  .btn-primary {
    letter-spacing: 0.12em;
    font-size: 12px;
    padding: 16px 36px;
  }

  /* ── フォームラベル英語テキスト 修正 ── */
  .label-en {
    color: var(--muted) !important;
    opacity: 0.55;
  }

  /* ── ヒーライトカード ボーダー洗練 ── */
  .wwd-card {
    border-left: 2px solid transparent;
    transition: background 0.25s, border-color 0.25s, border-left-color 0.25s;
  }
  .wwd-card:hover {
    border-left-color: var(--accent);
  }

  /* ── フッター ロゴ サイズ ── */
  .footer-logo img {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.85;
    margin-bottom: 12px;
  }

  
/* ── ヒーロー h1 拡大 ── */
  .hero h1 {
    font-size: clamp(52px, 6.5vw, 84px);
    letter-spacing: -0.02em;
    line-height: 1.08;
  }

  /* ── サービスカード hover 改善 ── */
  .service-card {
    transition: background 0.3s ease;
  }
  .service-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .service-card:hover {
    background: var(--paper);
  }
  .service-card:hover::after {
    transform: scaleX(1);
  }
  .service-card:hover .service-num {
    font-size: 13px;
    letter-spacing: 0.2em;
  }

  /* ── Aboutビジュアルパネル 斜線テクスチャ ── */
  .about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 18px,
      rgba(255, 255, 255, 0.025) 18px,
      rgba(255, 255, 255, 0.025) 19px
    );
    pointer-events: none;
  }
  .about-quote {
    font-size: 32px;
  }
  .about-quote-mark {
    font-size: 160px;
    color: rgba(26, 79, 255, 0.2);
  }

  /* ── 事例カード hover リフト ── */
  .case-card {
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .case-card:hover {
    background: #141414;
    border-color: rgba(122, 157, 255, 0.28);
    transform: translateY(-5px);
  }
  .case-result {
    font-size: 32px !important;
    color: #7a9dff;
    line-height: 1;
    margin-bottom: 4px;
    transition: transform 0.3s ease;
  }
  .case-card:hover .case-result {
    transform: scale(1.06);
  }

  /* ── プロセスステップ アクセント ── */
  .process-step:first-child .process-dot {
    border-color: var(--accent);
    color: var(--accent);
  }
  .process-steps::before {
    background: linear-gradient(90deg, var(--accent), var(--line) 40%);
  }

  /* ── セクションタグ 洗練 ── */
  .section-tag {
    font-size: 11px;
    letter-spacing: 0.28em;
  }

  /* ── ボタン 洗練 ── */
  .btn-primary {
    letter-spacing: 0.12em;
    font-size: 12px;
    padding: 16px 36px;
  }

  /* ── フォームラベル英語テキスト 修正 ── */
  .label-en {
    color: var(--muted) !important;
    opacity: 0.55;
  }

  /* ── ヒーライトカード ボーダー洗練 ── */
  .wwd-card {
    border-left: 2px solid transparent;
    transition: background 0.25s, border-color 0.25s, border-left-color 0.25s;
  }
  .wwd-card:hover {
    border-left-color: var(--accent);
  }

  /* ── フッター ロゴ サイズ ── */
  .footer-logo img {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.85;
    margin-bottom: 12px;
  }

  /* ─── TABLET (769px〜1024px) ─── */
  @media (min-width: 769px) and (max-width: 1024px) {

    /* ナビ */
    header { padding: 16px 32px; }
    nav { gap: 20px; }
    .nav-cta { padding: 10px 18px; }

    /* ヒーロー */
    .hero { grid-template-columns: 1fr 1fr; }
    .hero-left { padding: 60px 32px; }
    .hero h1 { font-size: clamp(32px, 4vw, 48px); }
    .hero-diagram { padding: 32px; }

    /* About */
    .about { padding: 80px 32px; gap: 48px; }
    .about h2 { font-size: 32px; }
    .about-quote { font-size: 24px; }
    .services-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .services-row2 { grid-template-columns: repeat(2, 1fr) !important; padding: 0 32px; }
    .service-card { padding: 36px 28px; }

    /* 支援の進め方 */
    .process { padding: 80px 32px; }
    .flow-steps { gap: 12px; }

    /* 支援事例 */
    .cases-header { padding: 0 32px 40px; }
    .cases-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .case-card { padding: 28px; }

    /* CTA・フォーム */
    .cta-section {
      grid-template-columns: 1fr 1fr !important;
      padding: 80px 32px !important;
      gap: 48px !important;
    }
    .form-row { grid-template-columns: 1fr 1fr !important; }

    /* フッター */
    .footer-top {
      grid-template-columns: repeat(2, 1fr) !important;
      padding: 48px 32px 32px;
    }
  }

  /* ─── MOBILE (〜768px) ─── */
  @media (max-width: 768px) {

    /* ナビ */
    header { padding: 14px 20px; }
    nav { gap: 0; }
    nav a:not(.nav-cta):not(.hamburger-btn) { display: none; }
    .nav-cta { display: none !important; }

    /* ハンバーガーボタン */
    .hamburger-btn {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      width: 28px;
      height: 20px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0;
      z-index: 200;
    }
    .hamburger-btn span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--ink);
      transition: all 0.3s;
      transform-origin: center;
    }
    .hamburger-btn.is-open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .hamburger-btn.is-open span:nth-child(2) { opacity: 0; }
    .hamburger-btn.is-open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

    /* ドロワーメニュー */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: var(--paper);
      z-index: 150;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 40px;
    }
    .mobile-menu.is-open { display: flex; }
    .mobile-close {
      position: absolute;
      top: 20px;
      right: 20px;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--ink);
      cursor: pointer;
      padding: 8px;
      line-height: 1;
    }
    .mobile-menu a {
      font-size: 22px;
      font-weight: 500;
      color: var(--ink);
      text-decoration: none;
      letter-spacing: 0.05em;
    }
    .mobile-menu .mobile-cta {
      margin-top: 16px;
      background: var(--ink);
      color: var(--white) !important;
      padding: 14px 32px;
      font-size: 15px !important;
    }

    /* ヒーロー */
    .hero {
      grid-template-columns: 1fr;
      min-height: auto;
      padding-top: 64px;
    }
    .hero-left { padding: 48px 24px 40px; }
    .hero h1 { font-size: 36px; }
    .hero-sub { font-size: 14px; margin-bottom: 32px; }
    .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
    .hero-right { display: none; }

    /* About */
    .about {
      grid-template-columns: 1fr;
      padding: 64px 24px;
      gap: 40px;
    }
    .about h2 { font-size: 24px; }
    .about-visual { padding: 32px; }
    .about-quote { font-size: 22px; }

    /* サービス */
    .services { padding: 64px 0; }
    .services-header { padding: 0 24px 40px; flex-direction: column; align-items: flex-start; gap: 16px; }
    .services-grid { grid-template-columns: 1fr !important; }
    .services-row2 { grid-template-columns: 1fr !important; padding: 0; }
    .service-card { padding: 36px 24px; }

    /* 支援の進め方 */
    .process { padding: 64px 24px; }
    .process-header { margin-bottom: 40px; }
    .flow-steps { flex-direction: column; gap: 0; }
    .flow-step { flex-direction: row; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
    .flow-step::after { display: none; }
    .step-num { font-size: 28px; min-width: 40px; }

    /* process-steps 縦積み */
    .process-steps {
      grid-template-columns: 1fr;
      gap: 0;
    }
    .process-steps::before { display: none; }
    .process-step {
      flex-direction: row;
      align-items: flex-start;
      text-align: left;
      padding: 24px 0;
      border-bottom: 1px solid var(--line);
      gap: 20px;
    }
    .process-dot {
      width: 44px;
      height: 44px;
      min-width: 44px;
      font-size: 13px;
    }
    .process-step h4 { margin-top: 0; margin-bottom: 6px; font-size: 15px; }
    .process-step p { font-size: 13px; }

    /* 支援事例 */
    .cases { padding: 64px 0; }
    .cases-header { padding: 0 24px 40px; }
    .cases-grid {
      grid-template-columns: 1fr !important;
    }
    .case-card { padding: 28px 24px; }

    /* CTA・フォーム */
    .cta-section {
      grid-template-columns: 1fr !important;
      padding: 64px 24px !important;
      gap: 48px !important;
    }
    .cta-section h2 { font-size: 32px; }
    .form-row { grid-template-columns: 1fr !important; }

    /* フッター */
    .footer-top {
      grid-template-columns: 1fr !important;
      padding: 48px 24px 32px;
      gap: 36px;
    }
    .footer-bottom { padding: 16px 24px; flex-direction: column; gap: 8px; text-align: center; }
  } /* end @media 768px */

  /* ─── 小型スマホ (〜375px) ─── */
  @media (max-width: 375px) {
    header { padding: 14px 16px; }
    .hero-left { padding: 40px 16px 32px; }
    .hero h1 { font-size: 28px; }
    .about { padding: 48px 16px; }
    .about h2 { font-size: 20px; }
    .services-header { padding: 0 16px 32px; }
    .service-card { padding: 28px 16px; }
    .process { padding: 48px 16px; }
    .cases-header { padding: 0 16px 32px; }
    .case-card { padding: 24px 16px; }
    .cta-section { padding: 48px 16px !important; }
    .footer-top { padding: 40px 16px 24px; }
  }