:root {
    --teal:#0E4D5C;
    --teal-dark:#093843;
    --offwhite:#F4F1EA;
    --white:#FFFFFF;
    --line:#E1DDD3;
    --text:#1f2d31;
    --accent-coral:#E97451;
  }
  * { box-sizing:border-box; }
  body {
    margin:0;
    background:var(--white);
    color:var(--text);
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:15px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
  }
  .site-header {
    position:fixed; top:0; left:0; right:0; height:64px;
    background:var(--teal-dark); color:var(--offwhite);
    padding:0 48px; display:flex; align-items:center; justify-content:space-between;
    z-index:1001;
  }
  .site-header a { color:var(--offwhite); text-decoration:none; }
  .logo {
    font-family:"Hoefler Text", "Baskerville", "Iowan Old Style", Constantia, Cambria, Georgia, serif;
    font-size:18px; letter-spacing:.04em;
  }
  .nav {
    display:flex; gap:32px;
    font-family:Arial, "Yu Gothic", sans-serif;
    font-size:12px; letter-spacing:.08em;
  }
  .nav a { color:var(--offwhite); opacity:.85; transition:opacity .2s ease; }
  .nav a:hover { opacity:1; }
  .menu-toggle {
    display:none; background:none; border:none; cursor:pointer;
    padding:12px; width:44px; height:44px;
    flex-direction:column; justify-content:space-between; align-items:center;
    z-index:1001; overflow:visible;
  }
  .menu-toggle span {
    display:block; width:20px; height:2px;
    background:var(--offwhite); transform-origin:center;
    transition:transform .3s ease, opacity .3s ease;
  }
  .menu-toggle.is-open span:nth-child(1) { transform:translateY(9px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2) { opacity:0; }
  .menu-toggle.is-open span:nth-child(3) { transform:translateY(-9px) rotate(-45deg); }
  .mobile-menu {
    position:fixed; inset:0;
    background:var(--teal-dark); z-index:1000;
    display:flex; flex-direction:column;
    align-items:center; justify-content:center;
    gap:28px; opacity:0; visibility:hidden;
    transition:opacity .3s ease, visibility .3s ease;
    padding:80px 24px;
  }
  .mobile-menu.is-open { opacity:1; visibility:visible; }
  .mobile-menu a {
    color:var(--offwhite); text-decoration:none;
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:20px; letter-spacing:.1em; padding:8px 16px;
  }
  .mobile-menu a:hover { color:var(--accent-coral); }
  @media (max-width:920px) {
    .nav { display:none; }
    .menu-toggle { display:flex; }
  }

  main { padding-top:64px; }

  .contact-hero {
    background:var(--teal-dark); color:var(--offwhite);
    padding:80px 32px 88px; text-align:center;
  }
  .contact-hero-eyebrow {
    font-family:"Hoefler Text", "Baskerville", "Iowan Old Style", Constantia, Cambria, Georgia, serif;
    font-size:12px; letter-spacing:.32em; text-transform:uppercase;
    color:var(--accent-coral); margin:0 0 18px;
  }
  .contact-hero h1 {
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:clamp(28px, 3.8vw, 42px); font-weight:600;
    line-height:1.4; margin:0 0 22px; color:#fff; letter-spacing:.04em;
  }
  .contact-hero p {
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:14px; line-height:2;
    color:rgba(244,241,234,.85);
    max-width:680px; margin:0 auto;
    letter-spacing:.06em;
  }

  .form-section {
    max-width:780px; margin:0 auto;
    padding:80px 32px;
  }
  .form-intro {
    margin:0 0 56px;
    padding:24px 28px;
    background:transparent;
    border:1px solid var(--accent-coral);
    font-size:13.5px;
    line-height:1.95;
    color:#3a4a4e;
  }
  .form-intro strong { color:var(--teal-dark); font-weight:600; }
  .panel-intro {
    margin:0 0 36px;
    padding:20px 24px;
    background:transparent;
    border:1px solid var(--accent-coral);
    font-size:13px;
    line-height:1.9;
    color:#3a4a4e;
  }
  .branch-tabs {
    display:flex;
    gap:0;
    margin:0 0 40px;
    border-bottom:1px solid var(--line);
  }
  .branch-tab {
    flex:1;
    padding:16px 12px;
    background:transparent;
    border:none;
    border-bottom:2px solid transparent;
    cursor:pointer;
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:14px;
    font-weight:600;
    color:#7a8a8e;
    letter-spacing:.06em;
    transition:color .2s ease, border-color .2s ease;
    margin-bottom:-1px;
  }
  .branch-tab.is-active {
    color:var(--accent-coral);
    border-bottom-color:var(--accent-coral);
  }
  .branch-panel { display:none; }
  .branch-panel.is-active { display:grid; gap:28px; }
  .form .row { display:grid; gap:28px; grid-template-columns:1fr 1fr; }
  @media (max-width:680px) {
    .form .row { grid-template-columns:1fr; gap:28px; }
  }
  .field {
    display:flex;
    flex-direction:column;
    gap:8px;
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:13px;
    color:var(--teal-dark);
    letter-spacing:.06em;
  }
  .field .req {
    color:var(--accent-coral);
    font-size:10px;
    margin-left:6px;
  }
  .field input,
  .field select,
  .field textarea {
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:14px;
    padding:12px 14px;
    border:1px solid var(--line);
    background:var(--white);
    color:var(--text);
    border-radius:0;
    width:100%;
  }
  .field textarea { min-height:120px; resize:vertical; }
  .field input:focus,
  .field select:focus,
  .field textarea:focus {
    outline:none;
    border-color:var(--accent-coral);
  }
  .form-note {
    margin-top:8px;
    font-size:11px;
    color:#7a8a8e;
    letter-spacing:.06em;
    line-height:1.85;
  }
  .submit-area { margin-top:24px; text-align:center; }
  .submit-btn {
    display:inline-block;
    padding:16px 56px;
    background:var(--accent-coral);
    color:#fff;
    border:none;
    cursor:pointer;
    font-family:Arial, "Yu Gothic", sans-serif;
    font-size:13px;
    font-weight:700;
    letter-spacing:.16em;
    text-transform:uppercase;
    transition:background .2s ease;
  }
  .submit-btn:hover { background:#d85f3b; }

  /* Google Form 送信後のサンクスメッセージ */
  .form-thanks {
    margin:40px auto;
    padding:48px 32px;
    border:1px solid var(--accent-coral);
    background:transparent;
    text-align:center;
  }
  .form-thanks h3 {
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:22px;
    font-weight:600;
    color:var(--teal-dark);
    margin:0 0 16px;
    letter-spacing:.04em;
  }
  .form-thanks p {
    font-family:"Yu Mincho", "YuMincho", "游明朝", "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", serif;
    font-size:14px;
    line-height:1.95;
    color:#3a4a4e;
    margin:0;
  }

  .back-link { text-align:center; padding:24px 32px 80px; }
  .back-link a {
    color:var(--teal-dark);
    text-decoration:none;
    font-family:Arial, "Yu Gothic", sans-serif;
    font-size:12px;
    letter-spacing:.12em;
    opacity:.7;
    transition:opacity .2s ease;
  }
  .back-link a:hover { opacity:1; }

  footer {
    background:var(--teal-dark);
    color:rgba(244,241,234,.7);
    padding:32px 48px;
    text-align:center;
    font-family:Arial, "Yu Gothic", sans-serif;
    font-size:11px;
    letter-spacing:.14em;
  }
  footer a { color:var(--offwhite); text-decoration:none; margin-left:24px; opacity:.85; }

  @media (max-width:680px) {
    .site-header { padding:0 22px; }
    .contact-hero { padding:64px 22px 72px; }
    .form-section { padding:56px 22px; }
  }