:root {
      --red: #dc0017;
      --red-dark: #b80014;
      --ink: #333333;
      --muted: #64737c;
      --surface: #f2f4f5;
      --surface-2: #f7f8f9;
      --border: #d4d9dc;
      --soft-red: #fff1f2;
      --white: #ffffff;
      --shadow: 0 24px 70px rgba(30, 42, 50, 0.12);
      --font-ja: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
      --font-en: "Open Sans", Arial, sans-serif;
    }

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

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      color: var(--ink);
      background: var(--surface-2);
      font-family: var(--font-ja);
      font-size: 16px;
      line-height: 1.85;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    button, a { font: inherit; }

    button { -webkit-tap-highlight-color: transparent; }

    a { color: inherit; }

    img { display: block; max-width: 100%; }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .skip-link {
      position: fixed;
      top: 8px;
      left: 8px;
      z-index: 20;
      padding: 10px 14px;
      color: var(--white);
      background: var(--ink);
      transform: translateY(-150%);
    }

    .skip-link:focus { transform: translateY(0); }

    .page {
      width: min(100%, 760px);
      min-height: 100vh;
      margin: 0 auto;
      background: var(--white);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .site-header {
      position: relative;
      display: grid;
      grid-template-columns: 118px minmax(0, 1fr);
      align-items: center;
      gap: 24px;
      min-height: 150px;
      padding: 16px 24px;
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }

    .brand-link {
      position: relative;
      z-index: 2;
      width: 118px;
      flex: 0 0 auto;
    }

    .brand-link img { width: 118px; height: auto; }

    .header-campaign {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 156px;
      align-items: center;
      gap: 16px;
      width: 100%;
    }

    .campaign-copy {
      min-width: 0;
      line-height: 1.5;
      text-align: left;
    }

    .campaign-kicker {
      display: inline-block;
      margin-bottom: 7px;
      padding: 3px 8px;
      color: var(--white);
      background: var(--red);
      border-radius: 3px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.08em;
    }

    .campaign-benefit {
      display: block;
      color: var(--ink);
      font-size: 13px;
      font-weight: 700;
    }

    .campaign-benefit strong {
      color: var(--red);
      font-family: var(--font-en);
      font-size: 18px;
    }

    .campaign-book {
      display: block;
      margin-top: 2px;
      color: var(--red);
      font-size: 16px;
      font-weight: 700;
      line-height: 1.45;
    }

    .campaign-side {
      display: grid;
      justify-items: center;
      gap: 6px;
      width: 156px;
    }

    .campaign-visual {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 148px;
      height: 100px;
      padding: 10px 8px;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 9px;
      box-shadow: 0 6px 18px rgba(26, 19, 17, 0.12);
    }

    .campaign-book-cover {
      display: block;
      width: auto;
      max-width: 58px;
      height: 76px;
      object-fit: contain;
      background: var(--white);
      box-shadow: 0 3px 8px rgba(26, 19, 17, 0.18);
    }

    .quiz-shell { min-height: 700px; }

    .question-screen { padding: 34px 40px 52px; }

    .progress-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 10px;
    }

    .eyebrow {
      margin: 0;
      color: var(--red);
      font-family: var(--font-en);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.11em;
    }

    .progress-count {
      margin: 0;
      color: var(--ink);
      font-family: var(--font-en);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.08em;
    }

    .progress-track {
      height: 6px;
      margin-bottom: 28px;
      background: var(--border);
      overflow: hidden;
    }

    .progress-bar {
      display: block;
      width: 20%;
      height: 100%;
      background: var(--red);
      transition: width 220ms ease-out;
    }

    .question-visual {
      margin: 0 -40px 32px;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--surface);
    }

    .question-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
    }

    .question-title {
      margin: 0 0 28px;
      font-size: clamp(1.44rem, 4.4vw, 1.9rem);
      font-weight: 700;
      line-height: 1.55;
      letter-spacing: 0.015em;
      white-space: pre-line;
    }

    .question-title:focus, .result-heading:focus { outline: none; }

    .options {
      display: grid;
      gap: 12px;
    }

    .option {
      display: grid;
      grid-template-columns: 38px minmax(0, 1fr);
      align-items: center;
      gap: 13px;
      width: 100%;
      min-height: 66px;
      padding: 13px 18px;
      color: var(--ink);
      text-align: left;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 10px;
      cursor: pointer;
      transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease, transform 150ms ease;
    }

    .option:hover:not(:disabled) {
      border-color: var(--red);
      transform: translateY(-1px);
    }

    .option:focus-visible, .next-button:focus-visible, .form-fallback-link:focus-visible, .footer-link:focus-visible {
      outline: 3px solid rgba(220, 0, 23, 0.28);
      outline-offset: 3px;
    }

    .option:disabled { cursor: default; opacity: 1; }

    .option.is-selected {
      color: var(--white);
      background: var(--red);
      border-color: var(--red);
    }

    .option-key {
      display: grid;
      place-items: center;
      width: 34px;
      height: 34px;
      border: 1px solid currentColor;
      border-radius: 50%;
      font-family: var(--font-en);
      font-size: 14px;
      font-weight: 700;
    }

    .option-text { font-weight: 600; line-height: 1.55; }

    .feedback {
      margin-top: 22px;
      padding: 22px 22px 24px;
      background: var(--surface-2);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    [hidden] { display: none !important; }

    .feedback-verdict {
      margin: 0 0 8px;
      font-size: 19px;
      font-weight: 700;
    }

    .feedback-answer {
      margin: 0 0 12px;
      font-weight: 700;
    }

    .feedback-copy { margin: 0; white-space: pre-line; }

    .selected-answer {
      display: block;
      margin: 12px 0 14px;
      padding: 10px 13px;
      color: var(--red-dark);
      background: var(--soft-red);
      border: 1px solid rgba(220, 0, 23, 0.25);
      font-weight: 700;
      line-height: 1.55;
    }

    .next-button {
      display: block;
      width: 100%;
      min-height: 64px;
      margin-top: 20px;
      color: var(--white);
      background: var(--ink);
      border: 0;
      border-radius: 10px;
      font-size: 17px;
      font-weight: 700;
      cursor: pointer;
    }

    .next-button:hover { background: #171717; }

    .result-screen { background: var(--white); }

    .final-feedback {
      margin: 0;
      padding: 30px 40px 32px;
      border-top: 0;
    }

    .result-band {
      padding: 48px 40px 52px;
      text-align: center;
      background: var(--ink);
      color: var(--white);
    }

    .result-label {
      margin: 0 0 10px;
      color: #d7dde0;
      font-family: var(--font-en);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.16em;
    }

    .result-heading { margin: 0; font-size: 19px; font-weight: 700; }

    .score-line {
      display: flex;
      align-items: baseline;
      justify-content: center;
      gap: 8px;
      margin: 5px 0 4px;
    }

    .score-number {
      color: var(--white);
      font-family: var(--font-en);
      font-size: clamp(3.8rem, 12vw, 4.8rem);
      font-weight: 800;
      line-height: 1;
    }

    .score-unit { font-size: 25px; font-weight: 700; }

    .score-note { margin: 0; color: #d7dde0; font-size: 14px; }

    .section { padding: 58px 40px 62px; }

    .section + .section { border-top: 1px solid var(--border); }

    .section-label {
      margin: 0 0 14px;
      color: var(--red);
      font-family: var(--font-en);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.14em;
    }

    .section-title {
      margin: 0 0 24px;
      font-size: clamp(1.55rem, 5vw, 2.15rem);
      line-height: 1.5;
      letter-spacing: 0.02em;
    }

    .lead {
      margin: 0;
      font-size: 17px;
      font-weight: 600;
      line-height: 1.9;
    }

    .body-copy { margin: 20px 0 0; white-space: pre-line; }

    .thanks { text-align: center; }

    .thanks .lead { font-size: 19px; }

    .purpose-section { background: var(--surface-2); }

    .stats {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin: 38px 0 0;
    }

    .client-logos {
      margin: 36px -40px 40px;
      padding: 16px 0 12px;
      overflow: hidden;
      background: var(--white);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .client-logos-label {
      margin: 0 0 10px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-align: center;
    }

    .client-logo-track {
      width: 100%;
      height: 90px;
      background: url("../../images/image-0e0779d28362.png") repeat-x center top / 900px auto;
      animation: clientLogosMove 30s linear infinite;
    }

    @keyframes clientLogosMove {
      from { background-position: 900px 0; }
      to { background-position: 0 0; }
    }

    .stat {
      position: relative;
      min-width: 0;
      padding: 23px 8px 20px;
      text-align: center;
      background: var(--white);
      border-top: 4px solid var(--red);
    }

    .stat strong {
      display: block;
      color: var(--red);
      font-family: var(--font-en);
      font-size: clamp(1.35rem, 5vw, 2rem);
      line-height: 1.25;
      white-space: nowrap;
    }

    .stat span {
      display: block;
      margin-top: 8px;
      font-size: 12px;
      font-weight: 700;
      line-height: 1.5;
    }

    .offer-section { padding-bottom: 68px; }

    .bridge {
      margin: 0 0 26px;
      padding: 18px 20px;
      background: var(--ink);
      color: var(--white);
      font-size: 18px;
      font-weight: 700;
      line-height: 1.7;
    }

    .book-intro { margin: 22px 0 0; }

    .books {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
      margin-top: 30px;
    }

    .book {
      display: grid;
      grid-template-rows: auto 1fr;
      min-width: 0;
      padding: 24px 20px 22px;
      background: var(--surface-2);
      border: 1px solid var(--border);
    }

    .book-image-wrap {
      display: grid;
      place-items: center;
      min-height: 252px;
      margin-bottom: 18px;
    }

    .book img {
      width: auto;
      height: 232px;
      box-shadow: 0 10px 22px rgba(30, 42, 50, 0.16);
    }

    .book h3 { margin: 0 0 9px; font-size: 16px; line-height: 1.65; }

    .book p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }

    .form-embed-wrap { margin-top: 34px; }

    .form-heading {
      margin: 0 0 8px;
      font-size: 22px;
      line-height: 1.5;
      text-align: center;
    }

    .form-intro {
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      text-align: center;
    }

    .google-form-frame {
      display: block;
      width: 100%;
      height: 1351px;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 12px;
    }

    .form-fallback { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; text-align: center; }

    .form-fallback-link { color: var(--red); font-weight: 700; text-underline-offset: 3px; }

    .cta-note { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; text-align: center; }

    .site-footer {
      padding: 38px 34px 40px;
      color: var(--white);
      background: var(--red);
    }

    .footer-logo {
      display: inline-block;
      padding: 10px 12px;
      background: var(--white);
    }

    .footer-logo img { width: 98px; }

    .footer-company { margin: 22px 0 0; font-size: 14px; font-weight: 700; }

    .footer-link { display: inline-block; margin-top: 5px; font-size: 14px; }

    .source-note { margin: 20px 0 0; font-size: 12px; line-height: 1.7; }

    .copyright { margin: 18px 0 0; font-family: var(--font-en); font-size: 11px; letter-spacing: 0.06em; }

    .noscript {
      margin: 24px;
      padding: 18px;
      background: var(--soft-red);
      border: 1px solid rgba(220, 0, 23, 0.25);
    }

    @media (max-width: 760px) {
      body { background: var(--white); }
      .page { box-shadow: none; }
      .site-header { grid-template-columns: 100px minmax(0, 1fr); gap: 16px; min-height: 154px; padding: 14px 16px; }
      .brand-link, .brand-link img { width: 100px; }
      .header-campaign { grid-template-columns: minmax(0, 1fr) 156px; gap: 12px; width: 100%; }
      .campaign-side { width: 156px; }
      .campaign-visual { width: 148px; height: 96px; padding: 9px 8px; }
      .campaign-book-cover { max-width: 56px; height: 72px; }
      .question-screen { padding: 28px 22px 42px; }
      .progress-track { margin-bottom: 30px; }
      .question-visual { margin-left: -22px; margin-right: -22px; }
      .final-feedback, .result-band, .section { padding-left: 22px; padding-right: 22px; }
      .client-logos { margin-left: -22px; margin-right: -22px; }
      .site-footer { padding-left: 22px; padding-right: 22px; }
    }

    @media (max-width: 540px) {
      .site-header { grid-template-columns: 74px minmax(0, 1fr); gap: 10px; min-height: 166px; padding: 12px 10px; }
      .brand-link, .brand-link img { width: 74px; }
      .header-campaign { grid-template-columns: minmax(0, 1fr) 96px; gap: 8px; width: 100%; }
      .campaign-kicker { margin-bottom: 4px; padding: 2px 6px; font-size: 9px; }
      .campaign-benefit { font-size: 10px; line-height: 1.45; }
      .campaign-benefit strong { font-size: 13px; }
      .campaign-book { margin-top: 2px; font-size: 11px; line-height: 1.4; }
      .campaign-side { gap: 4px; width: 96px; }
      .campaign-visual { gap: 6px; width: 92px; height: 68px; padding: 5px; border-radius: 6px; }
      .campaign-book-cover { max-width: 36px; height: 54px; }
      .question-title { margin-bottom: 24px; }
      .option { grid-template-columns: 34px minmax(0, 1fr); gap: 11px; min-height: 62px; padding: 12px 14px; }
      .option-key { width: 31px; height: 31px; }
      .feedback { padding: 19px 17px 21px; }
      .result-band { padding-top: 42px; padding-bottom: 45px; }
      .section { padding-top: 48px; padding-bottom: 52px; }
      .stats { gap: 6px; }
      .stat { padding: 19px 3px 17px; }
      .stat span { font-size: 11px; }
      .books { grid-template-columns: 1fr; }
      .book { grid-template-columns: 122px minmax(0, 1fr); grid-template-rows: auto; gap: 18px; align-items: center; }
      .book-image-wrap { min-height: 0; margin: 0; }
      .book img { height: 174px; }
      .google-form-frame { height: 1500px; }
    }

    @media (max-width: 370px) {
      .question-screen, .final-feedback, .result-band, .section { padding-left: 17px; padding-right: 17px; }
      .question-visual { margin-left: -17px; margin-right: -17px; }
      .client-logos { margin-left: -17px; margin-right: -17px; }
      .book { grid-template-columns: 98px minmax(0, 1fr); padding: 18px 14px; gap: 14px; }
      .book img { height: 145px; }
      .stats { grid-template-columns: 1fr; }
      .stat { display: grid; grid-template-columns: 1fr 1fr; align-items: center; text-align: left; padding: 14px 18px; }
      .stat span { margin-top: 0; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
      .client-logo-track { animation: none !important; background-position: center top; }
    }
