*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
    body {
      font-family: "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
      color: oklch(14% 0.012 255);
      background-color: #fff;
      line-height: 1.8;
    }
    h1, h2, h3 { font-family: "Noto Serif JP", Georgia, serif; line-height: 1.2; color: oklch(14% 0.012 255); letter-spacing: -0.01em; }
    a { color: var(--color-accent); text-decoration: none; transition: color 0.15s ease; }
    a:hover { color: var(--color-accent-hover); }

    /* CSS変数 */
    :root {
      --color-text: oklch(14% 0.012 255);
      --color-text-muted: oklch(55% 0.01 255);
      --color-border: oklch(91.5% 0.006 240);
      --color-accent: #245f96;
      --color-accent-hover: #194b76;
      --color-bg: #fff;
    }

    .site-container { width: 100%; max-width: 1100px; margin-left: auto; margin-right: auto; padding-left: 2rem; padding-right: 2rem; }

    /* Navigation */
    .site-header { position: sticky; top: 0; z-index: 50; background: #fff; border-bottom: 1px solid transparent; transition: border-color 0.15s ease; }
    .site-header.scrolled { border-bottom-color: oklch(91.5% 0.006 240); }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 1.5rem; }
    .nav-links { display: none; align-items: center; gap: 0.25rem; margin-left: auto; justify-content: flex-end; }
    .nav-link { padding: 0.5rem 0.75rem; font-size: 0.9375rem; font-weight: 500; color: oklch(14% 0.012 255); text-decoration: none; border-radius: 0.375rem; transition: background-color 0.15s ease; }
    .nav-link:hover { background-color: oklch(97.3% 0.006 240); color: oklch(14% 0.012 255); }
    .nav-cta { display: none; }
    @media (min-width: 1024px) { .nav-links { display: flex; } .nav-cta { display: flex; align-items: center; } }

    /* Buttons */
    .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 2rem; background-color: var(--color-accent); color: #fff; font-family: "Noto Sans JP", sans-serif; font-size: 0.9375rem; font-weight: 600; border-radius: 0.375rem; border: none; transition: background-color 0.15s ease, box-shadow 0.15s ease; min-height: 48px; white-space: nowrap; letter-spacing: 0.01em; text-decoration: none; cursor: pointer; }
    .btn-primary:hover { background-color: var(--color-accent-hover); box-shadow: 0 2px 8px rgba(36, 95, 150, 0.25); color: #fff; }
    .btn-primary-sm { padding: 0.5rem 1.25rem; font-size: 0.875rem; min-height: 40px; }
    .btn-secondary { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.75rem 1.5rem; background-color: transparent; color: oklch(14% 0.012 255); font-family: "Noto Sans JP", sans-serif; font-size: 0.9375rem; font-weight: 500; border-radius: 0.375rem; border: 1px solid oklch(80% 0.006 240); transition: background-color 0.15s ease; min-height: 44px; text-decoration: none; cursor: pointer; }
    .btn-secondary:hover { background-color: oklch(97.3% 0.006 240); color: oklch(14% 0.012 255); }

    /* Typography */
    .eyebrow { font-family: "DM Sans", sans-serif; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent); display: block; }
    .section-label { font-family: "DM Sans", sans-serif; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent); display: block; margin-bottom: 0.75rem; }
    .display-heading { font-family: "Noto Serif JP", serif; font-size: 1.75rem; font-weight: 700; color: oklch(14% 0.012 255); line-height: 1.15; letter-spacing: -0.02em; }
    @media (min-width: 1024px) { .display-heading { font-size: 2.5rem; } }
    .section-heading { font-family: "Noto Serif JP", serif; font-size: 1.25rem; font-weight: 700; color: oklch(14% 0.012 255); line-height: 1.3; }
    @media (min-width: 1024px) { .section-heading { font-size: 1.5rem; } }
    .sub-heading { font-family: "Noto Serif JP", serif; font-size: 1rem; font-weight: 700; color: oklch(14% 0.012 255); line-height: 1.3; }
    .lead-text { font-size: 1rem; color: oklch(43% 0.012 255); line-height: 1.85; }
    @media (min-width: 1024px) { .lead-text { font-size: 1.0625rem; } }
    .prose-text { font-size: 0.9375rem; color: oklch(43% 0.012 255); line-height: 1.85; }
    @media (min-width: 1024px) { .prose-text { font-size: 1rem; } }
    .mb-2 { margin-bottom: 0.5rem; } .mb-4 { margin-bottom: 1rem; } .mb-6 { margin-bottom: 1.5rem; } .mb-8 { margin-bottom: 2rem; } .mb-10 { margin-bottom: 2.5rem; }

    /* Layout */
    .bg-white { background-color: #fff; }

    /* CTA */
    .cta-section { padding: 5rem 1.5rem; text-align: center; }
    .cta-inner { max-width: 760px; margin: 0 auto; }
    .cta-heading { font-size: 1.5rem; font-weight: 600; letter-spacing: 0.01em; margin-bottom: 1.25rem; line-height: 1.4; color: oklch(14% 0.012 255); }
    .cta-body { font-size: 1rem; line-height: 1.8; color: #555; margin-bottom: 2rem; }

    /* Footer */
    .site-footer { background-color: oklch(14% 0.012 255); color: oklch(55% 0.01 255); }
    .footer-inner { padding-top: 3rem; padding-bottom: 3rem; }
    @media (min-width: 1024px) { .footer-inner { padding-top: 4rem; padding-bottom: 4rem; } }
    .footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
    @media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
    @media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; } }
    .footer-col-title { font-family: "DM Sans", sans-serif; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: #fff; margin-bottom: 1rem; }
    .footer-link { display: block; font-size: 0.875rem; color: oklch(50% 0.01 255); text-decoration: none; transition: color 0.15s ease; margin-bottom: 0.625rem; }
    .footer-link:hover { color: #fff; }
    .footer-bottom { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid oklch(22% 0.01 255); display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 0.75rem; }
    @media (min-width: 640px) { .footer-bottom { flex-direction: row; } }
    .footer-copyright { font-size: 0.75rem; color: oklch(38% 0.01 255); }
    .footer-policy-link { font-size: 0.75rem; color: oklch(38% 0.01 255); text-decoration: none; transition: color 0.15s ease; }
    .footer-policy-link:hover { color: #fff; }

    /* Form */
    .form-field { display: flex; flex-direction: column; gap: 0.5rem; }
    .form-input { width: 100%; padding: 0.75rem 1rem; border: 1px solid oklch(91.5% 0.006 240); border-radius: 0; font-size: 1rem; color: oklch(14% 0.012 255); background: white; outline: none; font-family: "Noto Sans JP", sans-serif; transition: border-color 0.15s ease; }
    .form-input:focus { border-color: oklch(14% 0.012 255); }
    .form-select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, oklch(43% 0.012 255) 50%), linear-gradient(135deg, oklch(43% 0.012 255) 50%, transparent 50%); background-position: calc(100% - 1.25rem) calc(50% - 0.15rem), calc(100% - 0.85rem) calc(50% - 0.15rem); background-size: 0.45rem 0.45rem, 0.45rem 0.45rem; background-repeat: no-repeat; padding-right: 2.5rem; cursor: pointer; }
    .form-textarea { resize: vertical; line-height: 1.75; min-height: 10rem; }
    .form-label { font-size: 0.875rem; font-weight: 500; color: oklch(14% 0.012 255); }
    .form-required { color: var(--color-accent); margin-left: 0.375rem; font-size: 0.75rem; font-weight: 400; }
    .form-optional { color: oklch(55% 0.01 255); margin-left: 0.375rem; font-size: 0.75rem; font-weight: 400; }
    .form-error { font-size: 0.8rem; color: var(--color-accent); margin: 0; }
    .form-note { font-size: 0.8rem; color: oklch(55% 0.01 255); line-height: 1.75; margin: 0; }
    .form-note a { color: oklch(14% 0.012 255); }

    /* Contact Form 7 */
    .contact-form-wrap { display: flex; flex-direction: column; gap: 1.75rem; }
    .contact-form-wrap--placeholder {
      padding: 1.5rem;
      border: 1px dashed oklch(80% 0.006 240);
      border-radius: 0.375rem;
      font-size: 0.875rem;
      line-height: 1.75;
      color: oklch(43% 0.012 255);
    }
    .contact-form-wrap .wpcf7 { margin: 0; }
    .contact-form-wrap .wpcf7-form { display: flex; flex-direction: column; gap: 1.75rem; }
    .contact-form-wrap .wpcf7-form p { margin: 0; display: flex; flex-direction: column; gap: 0.5rem; }
    .contact-form-wrap .wpcf7-form .form-label { font-size: 0.875rem; font-weight: 500; color: oklch(14% 0.012 255); }
    .contact-form-wrap .wpcf7-form .form-required,
    .contact-form-wrap .wpcf7-form .form-optional { margin-left: 0.375rem; font-size: 0.75rem; font-weight: 400; }
    .contact-form-wrap .wpcf7-form .form-required { color: var(--color-accent); }
    .contact-form-wrap .wpcf7-form .form-optional { color: oklch(55% 0.01 255); }
    .contact-form-wrap .wpcf7-form-control-wrap { display: block; }
    .contact-form-wrap .wpcf7-form-control:not(.wpcf7-submit) {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid oklch(91.5% 0.006 240);
      border-radius: 0;
      font-size: 1rem;
      color: oklch(14% 0.012 255);
      background: white;
      outline: none;
      font-family: "Noto Sans JP", sans-serif;
      transition: border-color 0.15s ease;
    }
    .contact-form-wrap .wpcf7-form-control:not(.wpcf7-submit):focus { border-color: oklch(14% 0.012 255); }
    .contact-form-wrap .wpcf7-select {
      appearance: none;
      background-image: linear-gradient(45deg, transparent 50%, oklch(43% 0.012 255) 50%), linear-gradient(135deg, oklch(43% 0.012 255) 50%, transparent 50%);
      background-position: calc(100% - 1.25rem) calc(50% - 0.15rem), calc(100% - 0.85rem) calc(50% - 0.15rem);
      background-size: 0.45rem 0.45rem, 0.45rem 0.45rem;
      background-repeat: no-repeat;
      padding-right: 2.5rem;
      cursor: pointer;
    }
    .contact-form-wrap .wpcf7-textarea { resize: vertical; line-height: 1.75; min-height: 10rem; }
    .contact-form-wrap .wpcf7-submit {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.875rem 2rem;
      background-color: var(--color-accent);
      color: #fff;
      font-family: "Noto Sans JP", sans-serif;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: 0.375rem;
      border: none;
      transition: background-color 0.15s ease, box-shadow 0.15s ease;
      min-height: 48px;
      white-space: nowrap;
      letter-spacing: 0.01em;
      cursor: pointer;
    }
    .contact-form-wrap .wpcf7-submit:hover {
      background-color: var(--color-accent-hover);
      box-shadow: 0 2px 8px rgba(36, 95, 150, 0.25);
    }
    .contact-form-wrap .wpcf7-not-valid-tip { font-size: 0.8rem; color: var(--color-accent); margin-top: 0.25rem; }
    .contact-form-wrap .wpcf7-response-output {
      margin: 0;
      padding: 1rem;
      border: 1px solid oklch(91.5% 0.006 240);
      font-size: 0.875rem;
      line-height: 1.75;
    }