:root {
      --red: #d71920;
      --red-dark: #9f1017;
      --red-soft: #fff0f0;
      --gold: #d6a642;
      --gold-soft: #fff8e6;
      --text: #242424;
      --muted: #666;
      --line: #f0d8d8;
      --bg: #fff8f6;
      --white: #ffffff;
      --shadow: 0 18px 45px rgba(150, 22, 24, 0.12);
      --radius: 22px;
      --max: 1120px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(215, 25, 32, 0.08), transparent 34%),
        linear-gradient(180deg, #fff8f6 0%, #ffffff 44%, #fff8f6 100%);
      line-height: 1.8;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(215, 25, 32, 0.12);
    }

    .header-inner {
      max-width: var(--max);
      margin: 0 auto;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 900;
      letter-spacing: -0.03em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      box-shadow: 0 8px 18px rgba(215, 25, 32, 0.22);
      flex: 0 0 auto;
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 14px;
      flex-wrap: wrap;
      color: #555;
      font-size: 14px;
      font-weight: 700;
    }

    .nav a {
      transition: color 0.2s ease;
    }

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

    .nav-cta {
      padding: 9px 14px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff !important;
      box-shadow: 0 10px 20px rgba(215, 25, 32, 0.18);
    }

    .breadcrumb {
      max-width: var(--max);
      margin: 0 auto;
      padding: 16px 18px 0;
      font-size: 13px;
      color: #777;
    }

    .breadcrumb a {
      color: var(--red-dark);
      font-weight: 700;
    }

    .hero {
      max-width: var(--max);
      margin: 0 auto;
      padding: 30px 18px 42px;
    }

    .hero-box {
      position: relative;
      overflow: hidden;
      border-radius: 34px;
      padding: 44px;
      background:
        radial-gradient(circle at 84% 16%, rgba(255, 220, 120, 0.46), transparent 26%),
        linear-gradient(135deg, #fff 0%, #fff4f2 46%, #ffe8e3 100%);
      box-shadow: var(--shadow);
      border: 1px solid rgba(215, 25, 32, 0.12);
    }

    .hero-box::before {
      content: "";
      position: absolute;
      inset: auto -80px -120px auto;
      width: 300px;
      height: 300px;
      border-radius: 999px;
      background: rgba(215, 25, 32, 0.09);
    }

    .hero-box::after {
      content: "";
      position: absolute;
      left: 44px;
      bottom: 0;
      width: 180px;
      height: 6px;
      border-radius: 999px 999px 0 0;
      background: linear-gradient(90deg, var(--red), var(--gold));
    }

    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 34px;
      align-items: center;
      z-index: 1;
    }

    .eyebrow,
    .label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      margin-bottom: 16px;
      border-radius: 999px;
      background: #fff;
      color: var(--red-dark);
      border: 1px solid rgba(215, 25, 32, 0.14);
      font-size: 13px;
      font-weight: 900;
    }

    h1 {
      margin: 0 0 18px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -0.06em;
    }

    .hero-lead {
      margin: 0;
      max-width: 700px;
      color: #4d4d4d;
      font-size: 16px;
      line-height: 1.9;
    }

    .hero-actions,
    .cta-actions,
    .card-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 24px;
    }

    .btn,
    .mini-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      font-weight: 900;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn {
      min-height: 48px;
      padding: 13px 20px;
      font-size: 14px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff;
      box-shadow: 0 12px 24px rgba(215, 25, 32, 0.22);
    }

    .btn-secondary {
      background: #fff;
      color: var(--red-dark);
      border: 1px solid rgba(215, 25, 32, 0.2);
    }

    .btn:hover,
    .mini-btn:hover {
      transform: translateY(-2px);
    }

    .hero-side {
      position: relative;
      min-height: 390px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding-top: 22px;
    }

    .logo-panel {
      position: relative;
      z-index: 2;
      width: min(100%, 330px);
      padding: 28px;
      border-radius: 28px;
      background:
        radial-gradient(circle at top right, rgba(255, 248, 230, 0.96), transparent 48%),
        #fff;
      border: 1px solid rgba(215, 25, 32, 0.13);
      box-shadow: 0 18px 38px rgba(120, 20, 20, 0.12);
      text-align: center;
    }

    .casino-logo {
      width: min(100%, 220px);
      max-height: 110px;
      object-fit: contain;
      margin: 0 auto 18px;
    }

    .logo-panel h2 {
      margin: 0 0 8px;
      font-size: 22px;
      line-height: 1.35;
      color: var(--red-dark);
    }

    .logo-panel p {
      margin: 0;
      color: #666;
      font-size: 13px;
      line-height: 1.7;
    }

    .mascot-mini {
      position: absolute;
      right: 4px;
      bottom: 8px;
      width: 112px;
      z-index: 3;
      filter: drop-shadow(0 12px 16px rgba(120, 20, 20, 0.12));
    }

    .notice {
      max-width: var(--max);
      margin: 0 auto 18px;
      padding: 0 18px;
    }

    .notice-box {
      padding: 18px 20px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.16);
      color: #555;
      box-shadow: 0 10px 28px rgba(150, 22, 24, 0.08);
      font-size: 14px;
    }

    .notice-box strong {
      color: var(--red-dark);
    }

    .section {
      max-width: var(--max);
      margin: 0 auto;
      padding: 42px 18px;
    }

    .section-head {
      margin-bottom: 24px;
    }

    .section-title {
      margin: 0 0 10px;
      font-size: clamp(26px, 3.6vw, 40px);
      line-height: 1.28;
      letter-spacing: -0.04em;
    }

    .section-desc {
      margin: 0;
      color: var(--muted);
      max-width: 820px;
      font-size: 15px;
    }

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

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .card,
    .score-card,
    .point-card,
    .faq-item,
    .mascot-note,
    .responsible-box,
    .link-card {
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.12);
      border-radius: var(--radius);
      box-shadow: 0 12px 30px rgba(150, 22, 24, 0.08);
    }

    .card,
    .score-card,
    .point-card,
    .faq-item,
    .link-card {
      padding: 22px;
    }

    .card h3,
    .score-card h3,
    .point-card h3,
    .faq-item h3,
    .link-card h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.45;
    }

    .card p,
    .score-card p,
    .point-card p,
    .faq-item p,
    .link-card p {
      margin: 0;
      color: #5f5f5f;
      font-size: 14px;
    }

    .score-card {
      position: relative;
      overflow: hidden;
    }

    .score-card::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 5px;
      background: linear-gradient(90deg, var(--red), var(--gold));
    }

    .score-label {
      display: inline-flex;
      margin-bottom: 12px;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--gold-soft);
      color: #8b6114;
      border: 1px solid rgba(214, 166, 66, 0.28);
      font-size: 12px;
      font-weight: 900;
    }

    .score-value {
      display: block;
      color: var(--red-dark);
      font-size: 30px;
      line-height: 1;
      font-weight: 900;
      letter-spacing: -0.04em;
      margin-bottom: 8px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 4px 9px;
      border-radius: 999px;
      background: var(--gold-soft);
      color: #8b6114;
      border: 1px solid rgba(214, 166, 66, 0.28);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .tag-red {
      background: var(--red-soft);
      color: var(--red-dark);
      border-color: rgba(215, 25, 32, 0.14);
    }

    .table-wrap {
      width: 100%;
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(215, 25, 32, 0.14);
      box-shadow: 0 14px 34px rgba(150, 22, 24, 0.08);
      background: #fff;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      font-size: 14px;
    }

    thead {
      background: linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff;
    }

    th,
    td {
      padding: 15px 14px;
      text-align: left;
      vertical-align: top;
      border-bottom: 1px solid #f2dddd;
    }

    tbody tr:last-child td {
      border-bottom: none;
    }

    tbody th {
      color: var(--red-dark);
      background: #fffafa;
      font-weight: 900;
      width: 24%;
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding: 14px 16px 14px 42px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.11);
      color: #555;
      font-size: 14px;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 16px;
      top: 14px;
      width: 18px;
      height: 18px;
      border-radius: 999px;
      background: var(--red);
      color: #fff;
      font-size: 12px;
      line-height: 18px;
      text-align: center;
      font-weight: 900;
    }

    .point-card ul,
    .card ul {
      margin: 12px 0 0;
      padding-left: 1.2em;
      color: #5f5f5f;
      font-size: 14px;
    }

    .point-card li,
    .card li {
      margin: 5px 0;
    }

    .mascot-note {
      display: grid;
      grid-template-columns: 110px 1fr;
      gap: 18px;
      align-items: center;
      padding: 20px;
      background:
        radial-gradient(circle at 40px 40px, rgba(255, 248, 230, 0.9), transparent 42%),
        #fff;
    }

    .mascot-note img {
      width: 104px;
      max-height: 128px;
      object-fit: contain;
      filter: drop-shadow(0 10px 14px rgba(120, 20, 20, 0.12));
    }

    .mascot-note h3 {
      margin: 0 0 8px;
      color: var(--red-dark);
      font-size: 18px;
      line-height: 1.45;
    }

    .mascot-note p {
      margin: 0;
      color: #555;
      font-size: 14px;
    }

    .responsible-box {
      padding: 24px;
      background:
        linear-gradient(135deg, #fff 0%, #fff8f6 100%);
    }

    .responsible-box h2 {
      margin: 0 0 10px;
      font-size: 24px;
      line-height: 1.35;
      color: var(--red-dark);
    }

    .responsible-box p {
      margin: 0;
      color: #555;
      font-size: 14px;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-item h3 {
      color: var(--red-dark);
    }

    .link-grid {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 14px;
    }

    .link-card {
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .link-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(150, 22, 24, 0.1);
    }

    .link-card strong {
      display: block;
      color: var(--red-dark);
      margin-bottom: 6px;
      font-size: 14px;
    }

    .link-card span {
      display: block;
      color: #666;
      font-size: 13px;
      line-height: 1.6;
    }

    .cta {
      max-width: var(--max);
      margin: 0 auto;
      padding: 30px 18px 58px;
    }

    .cta-box {
      position: relative;
      overflow: hidden;
      padding: 34px;
      border-radius: 30px;
      background:
        radial-gradient(circle at 88% 20%, rgba(255, 224, 140, 0.35), transparent 28%),
        linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff;
      box-shadow: 0 18px 44px rgba(150, 22, 24, 0.18);
    }

    .cta-box h2 {
      margin: 0 0 10px;
      font-size: clamp(24px, 3.5vw, 38px);
      line-height: 1.28;
      letter-spacing: -0.04em;
    }

    .cta-box p {
      margin: 0;
      max-width: 780px;
      color: rgba(255, 255, 255, 0.88);
      font-size: 15px;
    }

    .cta-box .btn-secondary {
      color: var(--red-dark);
      background: #fff;
      border: none;
    }

    .cta-box .btn-primary {
      background: rgba(255, 255, 255, 0.14);
      border: 1px solid rgba(255, 255, 255, 0.34);
      box-shadow: none;
    }

    .site-footer {
      padding: 36px 18px;
      border-top: 1px solid rgba(215, 25, 32, 0.12);
      background: #fff;
    }

    .footer-inner {
      max-width: var(--max);
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

    .footer-links {
      display: flex;
      gap: 12px 16px;
      flex-wrap: wrap;
      color: #666;
      font-size: 13px;
      font-weight: 700;
    }

    .footer-links a:hover {
      color: var(--red);
    }

    .footer-copy {
      color: #777;
      font-size: 12px;
      line-height: 1.7;
    }

    @media (max-width: 1000px) {
      .link-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 900px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-side {
        min-height: 340px;
      }

      .grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 760px) {
      body {
        line-height: 1.75;
      }

      .site-header {
        position: static;
      }

      .header-inner {
        padding: 12px 16px;
        gap: 12px;
      }

      .brand {
        font-size: 14px;
        line-height: 1.35;
        white-space: normal;
      }

      .brand-mark {
        width: 30px;
        height: 30px;
        border-radius: 9px;
        flex: 0 0 auto;
      }

      .nav {
        width: 100%;
        justify-content: flex-start;
        gap: 8px 12px;
        font-size: 12px;
        line-height: 1.3;
      }

      .nav a {
        padding: 5px 0;
      }

      .nav-cta {
        padding: 7px 10px;
        font-size: 12px;
      }

      .breadcrumb {
        padding: 12px 16px 0;
        font-size: 12px;
      }

      .hero {
        padding: 20px 16px 26px;
      }

      .hero-box {
        padding: 24px 18px;
        border-radius: 22px;
      }

      .hero-box::after {
        left: 24px;
        width: 130px;
        height: 5px;
      }

      .hero-grid {
        gap: 24px;
      }

      .eyebrow,
      .label {
        font-size: 12px;
        padding: 6px 10px;
        margin-bottom: 14px;
      }

      h1 {
        font-size: clamp(28px, 9vw, 38px);
        line-height: 1.18;
        margin-bottom: 14px;
        letter-spacing: -0.04em;
      }

      .hero-lead {
        font-size: 15px;
        line-height: 1.75;
      }

      .hero-actions,
      .cta-actions,
      .card-actions {
        gap: 10px;
        margin-top: 18px;
      }

      .btn,
      .mini-btn {
        width: 100%;
        min-height: 44px;
        text-align: center;
      }

      .btn {
        padding: 12px 15px;
        font-size: 14px;
      }

      .mini-btn {
        padding: 10px 12px;
        font-size: 13px;
      }

      .hero-side {
        min-height: 300px;
        padding-top: 4px;
      }

      .logo-panel {
        width: min(100%, 300px);
        padding: 22px 18px;
        border-radius: 22px;
      }

      .casino-logo {
        max-width: 190px;
        max-height: 90px;
      }

      .mascot-mini {
        width: 86px;
        right: 0;
        bottom: 2px;
      }

      .notice {
        margin-bottom: 14px;
        padding: 0 16px;
      }

      .notice-box {
        padding: 15px 16px;
        font-size: 13px;
        line-height: 1.75;
        border-radius: 14px;
      }

      .section {
        padding: 30px 16px;
      }

      .section-head {
        margin-bottom: 18px;
      }

      .section-title {
        font-size: clamp(22px, 7vw, 30px);
        line-height: 1.3;
      }

      .section-desc {
        font-size: 14px;
        line-height: 1.75;
      }

      .grid-2,
      .grid-3,
      .link-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .card,
      .score-card,
      .point-card,
      .faq-item,
      .link-card {
        padding: 18px;
        border-radius: 18px;
      }

      .card h3,
      .score-card h3,
      .point-card h3,
      .faq-item h3,
      .link-card h3 {
        font-size: 17px;
      }

      .table-wrap {
        border-radius: 18px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
      }

      .table-wrap::after {
        content: "横にスクロールできます →";
        display: block;
        padding: 8px 12px;
        color: #777;
        font-size: 12px;
        background: #fffaf7;
        border-top: 1px solid #f2dddd;
      }

      table {
        min-width: 820px;
        font-size: 13px;
      }

      th,
      td {
        padding: 12px 10px;
      }

      .mascot-note {
        grid-template-columns: 82px 1fr;
        gap: 12px;
        padding: 16px;
        border-radius: 18px;
      }

      .mascot-note img {
        width: 82px;
        max-height: 104px;
      }

      .mascot-note h3 {
        font-size: 16px;
        margin-bottom: 6px;
      }

      .mascot-note p {
        font-size: 13px;
        line-height: 1.7;
      }

      .responsible-box {
        padding: 20px 18px;
        border-radius: 20px;
      }

      .responsible-box h2 {
        font-size: 21px;
      }

      .cta {
        padding: 24px 16px 42px;
      }

      .cta-box {
        padding: 24px 18px;
        border-radius: 22px;
      }

      .site-footer {
        padding: 28px 16px;
      }

      .footer-links {
        justify-content: flex-start;
        gap: 8px 10px;
        font-size: 12px;
        line-height: 1.5;
      }
    }

    @media (max-width: 420px) {
      h1 {
        font-size: clamp(26px, 10vw, 34px);
      }

      .hero-box {
        padding: 22px 16px;
      }

      .hero-side {
        min-height: 280px;
      }

      .logo-panel {
        padding: 20px 16px;
      }

      .casino-logo {
        max-width: 170px;
      }

      .mascot-mini {
        width: 74px;
      }

      .mascot-note {
        grid-template-columns: 70px 1fr;
      }

      .mascot-note img {
        width: 70px;
        max-height: 92px;
      }

      .tag {
        font-size: 11px;
      }

      .score-value {
        font-size: 26px;
      }
    }
  
/* Research-based review upgrade block */
.research-upgrade {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 18px 18px;
}
.research-panel {
  background: #fff;
  border: 1px solid rgba(215,25,32,.14);
  border-radius: 24px;
  box-shadow: 0 16px 36px rgba(150,22,24,.08);
  padding: 24px;
}
.research-head {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}
.research-logo {
  min-height: 92px;
  border-radius: 18px;
  border: 1px solid #f1d1d1;
  background: #fffafa;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}
.research-logo img {
  max-width: 100%;
  max-height: 64px;
  object-fit: contain;
}
.research-kicker {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--gold-soft);
  border: 1px solid rgba(214,166,66,.34);
  color: #8b6114;
  font-size: 12px;
  font-weight: 900;
  margin-bottom: 8px;
}
.research-panel h2 {
  margin: 0;
  color: var(--red-dark);
  font-size: clamp(23px, 2.8vw, 34px);
  line-height: 1.35;
  letter-spacing: -0.03em;
}
.research-lead {
  margin: 8px 0 0;
  color: #5c4545;
  font-size: 14px;
  line-height: 1.8;
}
.research-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin: 18px 0;
}
.research-fact {
  border: 1px solid #f2cccc;
  background: linear-gradient(180deg,#fff,#fff8f8);
  border-radius: 16px;
  padding: 14px;
}
.research-fact b {
  display: block;
  color: var(--red-dark);
  font-size: 13px;
  margin-bottom: 6px;
}
.research-fact span {
  display: block;
  color: #5c4545;
  font-size: 13px;
  line-height: 1.65;
}
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}
.research-card {
  border: 1px solid #f2cccc;
  background: #fffafa;
  border-radius: 18px;
  padding: 16px;
}
.research-card h3 {
  margin: 0 0 8px;
  color: var(--red-dark);
  font-size: 17px;
  line-height: 1.45;
}
.research-card p {
  margin: 0;
  color: #5c4545;
  font-size: 14px;
  line-height: 1.75;
}
.research-card ul {
  margin: 8px 0 0;
  padding-left: 1.2em;
  color: #5c4545;
  font-size: 14px;
  line-height: 1.75;
}
.research-cta {
  margin-top: 16px;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.research-cta p {
  margin: 0;
  color: rgba(255,255,255,.9);
  font-size: 14px;
  line-height: 1.75;
}
.research-cta a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  background: #fff;
  color: var(--red-dark);
  font-weight: 900;
}
.research-note {
  margin: 14px 0 0;
  padding: 13px 15px;
  border-radius: 14px;
  background: #fffbea;
  border: 1px solid #f0d36c;
  color: #594000;
  font-size: 13px;
  line-height: 1.8;
}
@media (max-width: 900px) {
  .research-facts {
    grid-template-columns: 1fr;
  }
  .research-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .research-upgrade {
    padding: 18px 12px;
  }
  .research-panel {
    padding: 18px;
    border-radius: 18px;
  }
  .research-head {
    grid-template-columns: 1fr;
  }
  .research-logo {
    justify-content: flex-start;
  }
  .research-logo img {
    max-width: 190px;
  }
  .research-cta {
    display: block;
  }
  .research-cta a {
    width: 100%;
    margin-top: 12px;
  }
}


    /* ===== Slottenkoku conversion upgrade ===== */
    .brand-mark img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: inherit;
    }

    .logo-box {
      width: fit-content;
      max-width: 190px;
      min-height: 54px;
      margin: 0 0 12px;
      padding: 10px 12px;
      border-radius: 16px;
      background: #fffafa;
      border: 1px solid rgba(215, 25, 32, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .logo-box img {
      width: auto;
      max-width: 160px;
      max-height: 54px;
      object-fit: contain;
    }

    .slottenkoku-quick-cta {
      max-width: var(--max);
      margin: 0 auto 18px;
      padding: 0 18px;
    }

    .quick-cta-box {
      position: relative;
      overflow: hidden;
      padding: 24px;
      border-radius: 26px;
      background:
        radial-gradient(circle at 90% 10%, rgba(255, 224, 140, 0.42), transparent 28%),
        linear-gradient(135deg, #fff 0%, #fff8f6 56%, #ffecea 100%);
      border: 1px solid rgba(215, 25, 32, 0.14);
      box-shadow: 0 16px 36px rgba(150, 22, 24, 0.1);
    }

    .quick-cta-head {
      display: grid;
      grid-template-columns: 94px 1fr;
      gap: 16px;
      align-items: center;
      margin-bottom: 18px;
    }

    .quick-cta-logo {
      min-height: 82px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 12px;
    }

    .quick-cta-logo img {
      max-width: 100%;
      max-height: 58px;
      object-fit: contain;
    }

    .quick-cta-box h2 {
      margin: 0 0 8px;
      color: var(--red-dark);
      font-size: clamp(22px, 3vw, 34px);
      line-height: 1.35;
      letter-spacing: -0.04em;
    }

    .quick-cta-box p {
      margin: 0;
      color: #5a4a4a;
      font-size: 14px;
      line-height: 1.8;
    }

    .quick-cta-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 16px;
    }

    .quick-cta-card {
      padding: 18px;
      border-radius: 20px;
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.12);
      box-shadow: 0 10px 24px rgba(150, 22, 24, 0.07);
    }

    .quick-cta-card strong {
      display: block;
      margin-bottom: 6px;
      color: var(--red-dark);
      font-size: 16px;
      line-height: 1.45;
    }

    .quick-cta-card span {
      display: block;
      color: #666;
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .quick-cta-card a,
    .route-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 8px 13px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--red), var(--red-dark));
      color: #fff;
      font-weight: 900;
      font-size: 13px;
      box-shadow: 0 10px 20px rgba(215, 25, 32, 0.16);
    }

    .slottenkoku-payment-route {
      margin-top: 18px;
      padding: 22px;
      border-radius: 22px;
      background:
        radial-gradient(circle at top right, rgba(255, 248, 230, 0.95), transparent 42%),
        #fff;
      border: 1px solid rgba(215, 25, 32, 0.14);
      box-shadow: 0 12px 30px rgba(150, 22, 24, 0.08);
    }

    .slottenkoku-payment-route h3 {
      margin: 0 0 10px;
      color: var(--red-dark);
      font-size: 21px;
      line-height: 1.4;
    }

    .slottenkoku-payment-route p {
      margin: 0;
      color: #555;
      font-size: 14px;
      line-height: 1.8;
    }

    .route-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 14px;
    }

    .route-card {
      padding: 16px;
      border-radius: 18px;
      background: #fff8f6;
      border: 1px solid rgba(215, 25, 32, 0.12);
    }

    .route-card b {
      display: block;
      color: var(--red-dark);
      margin-bottom: 6px;
      font-size: 15px;
    }

    .route-card span {
      display: block;
      color: #666;
      font-size: 13px;
      line-height: 1.65;
      margin-bottom: 10px;
    }

    .slottenkoku-final-check {
      padding: 24px;
      border-radius: 24px;
      background:
        radial-gradient(circle at 88% 16%, rgba(255, 224, 140, 0.35), transparent 28%),
        linear-gradient(135deg, #fff, #fff5f2);
      border: 1px solid rgba(215, 25, 32, 0.16);
      box-shadow: 0 12px 30px rgba(150, 22, 24, 0.08);
    }

    .slottenkoku-final-check h2 {
      margin: 0 0 10px;
      color: var(--red-dark);
      font-size: clamp(22px, 3vw, 32px);
      line-height: 1.35;
    }

    .final-check-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 16px;
    }

    .final-check-item {
      padding: 15px;
      border-radius: 17px;
      background: #fff;
      border: 1px solid rgba(215, 25, 32, 0.11);
    }

    .final-check-item b {
      display: block;
      color: var(--red-dark);
      font-size: 14px;
      margin-bottom: 5px;
    }

    .final-check-item span {
      display: block;
      color: #666;
      font-size: 13px;
      line-height: 1.65;
    }

    .slottenkoku-popup-overlay {
      position: fixed;
      inset: 0;
      z-index: 9999;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 18px;
      background: rgba(20, 6, 7, 0.62);
      backdrop-filter: blur(5px);
    }

    .slottenkoku-popup-overlay.is-visible {
      display: flex;
    }

    .slottenkoku-popup {
      position: relative;
      width: min(100%, 560px);
      max-height: calc(100vh - 36px);
      overflow-y: auto;
      border-radius: 26px;
      background: #fff;
      border: 1px solid rgba(255, 255, 255, 0.4);
      box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
    }

    .slottenkoku-popup-close {
      position: absolute;
      top: 10px;
      right: 10px;
      z-index: 2;
      width: 36px;
      height: 36px;
      border: none;
      border-radius: 999px;
      background: rgba(255,255,255,.94);
      color: var(--red-dark);
      font-size: 22px;
      line-height: 1;
      cursor: pointer;
      box-shadow: 0 8px 18px rgba(0,0,0,.12);
    }

    .slottenkoku-popup-image {
      width: 100%;
      aspect-ratio: 960 / 420;
      background:
        radial-gradient(circle at 85% 15%, rgba(255, 224, 140, 0.5), transparent 30%),
        linear-gradient(135deg, var(--red), var(--red-dark));
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .slottenkoku-popup-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .slottenkoku-popup-body {
      padding: 22px;
    }

    .slottenkoku-popup-body h2 {
      margin: 0 0 8px;
      color: var(--red-dark);
      font-size: 24px;
      line-height: 1.35;
    }

    .slottenkoku-popup-body p {
      margin: 0;
      color: #555;
      font-size: 14px;
      line-height: 1.75;
    }

    .slottenkoku-popup-body .btn {
      width: 100%;
      margin-top: 16px;
    }

    .slottenkoku-popup-note {
      margin-top: 12px !important;
      color: #777 !important;
      font-size: 12px !important;
    }

    @media (max-width: 760px) {
      .quick-cta-head,
      .quick-cta-grid,
      .route-grid,
      .final-check-grid {
        grid-template-columns: 1fr;
      }

      .quick-cta-box,
      .slottenkoku-payment-route,
      .slottenkoku-final-check {
        padding: 18px;
        border-radius: 20px;
      }

      .quick-cta-logo {
        justify-content: flex-start;
      }

      .slottenkoku-popup-body {
        padding: 18px;
      }

      .logo-box {
        max-width: 170px;
      }
    }


/* mobile final hardening phase5 */
html, body { max-width: 100%; overflow-x: hidden; }
body { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
img, video, iframe, svg { max-width: 100%; height: auto; }
pre, code { white-space: pre-wrap; word-break: break-word; }
table { width: 100%; max-width: 100%; border-collapse: collapse; }
.table-wrap, .table-scroll, .comparison-table, .ranking-table, .bonus-table, .payment-table { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
section, main, article, .container, .wrap, .section, .card, .hero, .hero-card, .content-card { max-width: 100%; }
@media (max-width: 768px) {
  :root { --radius: 18px; }
  body { overflow-x: hidden; }
  .site-header { position: sticky; top: 0; }
  .header-inner { padding: 10px 12px !important; gap: 10px !important; align-items: flex-start !important; }
  .brand { width: 100%; min-width: 0; font-size: 14px !important; white-space: normal !important; line-height: 1.35 !important; }
  .brand-mark { width: 34px !important; height: 34px !important; border-radius: 10px !important; flex: 0 0 auto; }
  .nav { width: 100%; display: flex !important; flex-wrap: nowrap !important; justify-content: flex-start !important; gap: 8px !important; overflow-x: auto !important; -webkit-overflow-scrolling: touch; padding: 2px 2px 8px !important; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { flex: 0 0 auto; white-space: nowrap; padding: 7px 10px; border-radius: 999px; background: #fff; border: 1px solid rgba(215,25,32,.12); font-size: 12px !important; line-height: 1.2; }
  .nav .nav-cta, .nav-cta { background: linear-gradient(135deg, var(--red), var(--red-dark)) !important; color: #fff !important; }
  .hero, .hero-card, .section, section, main { padding-left: 12px !important; padding-right: 12px !important; }
  .hero { padding-top: 14px !important; }
  .hero-card, .card, .content-card, .ranking-card, .casino-card, .bonus-card { border-radius: 18px !important; padding: 18px !important; }
  h1 { font-size: clamp(28px, 8.6vw, 40px) !important; line-height: 1.18 !important; letter-spacing: -0.05em !important; word-break: keep-all; overflow-wrap: anywhere; }
  h2 { font-size: clamp(22px, 6.2vw, 30px) !important; line-height: 1.25 !important; overflow-wrap: anywhere; }
  h3 { font-size: clamp(18px, 5vw, 23px) !important; line-height: 1.32 !important; overflow-wrap: anywhere; }
  p, li, td, th { font-size: 15px; line-height: 1.85; overflow-wrap: anywhere; }
  .cta-row, .hero-actions, .actions, .btn-row, .button-row { display: grid !important; grid-template-columns: 1fr !important; gap: 10px !important; width: 100% !important; }
  .btn, .button, .cta, .primary-btn, .secondary-btn, a[class*="btn"], a[class*="cta"] { width: 100%; max-width: 100%; min-height: 48px; display: inline-flex; align-items: center; justify-content: center; text-align: center; padding: 13px 16px !important; white-space: normal !important; line-height: 1.35 !important; }
  .grid, .cards, .ranking-grid, .casino-grid, .bonus-grid, .payment-grid, .article-grid { display: grid !important; grid-template-columns: 1fr !important; gap: 14px !important; }
  table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; border-radius: 14px; }
  th, td { white-space: normal; min-width: 120px; }
  .side-banner, .side-banners, .pc-side-banner, .floating-banner, .fixed-banner, [class*="sideBanner"], [class*="floating"] { display: none !important; }
  .mobile-banner-strip, .mobile-focus-strip, .sp-banner-strip { display: flex !important; gap: 10px !important; overflow-x: auto !important; -webkit-overflow-scrolling: touch; padding: 8px 2px 14px !important; scrollbar-width: none; }
  .mobile-banner-strip::-webkit-scrollbar, .mobile-focus-strip::-webkit-scrollbar, .sp-banner-strip::-webkit-scrollbar { display: none; }
  .mobile-banner-strip > *, .mobile-focus-strip > *, .sp-banner-strip > * { flex: 0 0 86%; max-width: 86%; }
  .popup, .modal, .campaign-popup, .slottenkoku-popup { max-width: calc(100vw - 24px) !important; left: 12px !important; right: 12px !important; bottom: calc(12px + env(safe-area-inset-bottom)) !important; }
  .site-footer, footer { padding-bottom: calc(28px + env(safe-area-inset-bottom)) !important; }
}
@media (max-width: 430px) {
  .hero-card, .card, .content-card { padding: 16px !important; }
  h1 { font-size: clamp(26px, 9.5vw, 36px) !important; }
  .section, section { padding-top: 28px !important; padding-bottom: 28px !important; }
}


/* === Mobile polish phase 9: navigation, readability and safe-area UX hardening === */
:root{--mobile-safe-bottom: env(safe-area-inset-bottom, 0px);}
html{overflow-x:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%;}
body{overflow-x:hidden;min-width:0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
a,button,.btn,.nav a,.nav-cta{touch-action:manipulation;-webkit-tap-highlight-color:rgba(215,25,32,.16);} 
:where(a,button,.btn,.nav a,.nav-cta):focus-visible{outline:3px solid rgba(215,25,32,.45);outline-offset:3px;border-radius:12px;}
:where(section,main,article,.card,.panel,.box,.hero-box,.ranking-card,.casino-card,.review-card,.info-card,.table-wrap){min-width:0;}
:where(img,svg,video,canvas,iframe){max-width:100%;height:auto;}
:where(table){width:100%;max-width:100%;border-collapse:collapse;}
:where(th,td){word-break:break-word;overflow-wrap:anywhere;}
:where(.table-wrap,.table-scroll,.comparison-table-wrap,.scroll-table){max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;}
@media (max-width: 767px){
  body{padding-bottom:calc(86px + var(--mobile-safe-bottom));}
  .site-header{position:sticky;top:0;z-index:80;}
  .header-inner{padding:10px 12px;gap:8px;align-items:flex-start;}
  .brand{max-width:100%;font-size:14px;line-height:1.25;white-space:normal;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .nav{width:100%;display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding:2px 0 6px;justify-content:flex-start;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;}
  .nav::-webkit-scrollbar{display:none;}
  .nav a{flex:0 0 auto;scroll-snap-align:start;min-height:38px;display:inline-flex;align-items:center;justify-content:center;padding:8px 11px;border:1px solid rgba(215,25,32,.14);border-radius:999px;background:#fff;font-size:12px;white-space:nowrap;box-shadow:0 6px 14px rgba(80,20,20,.06);}
  .nav .nav-cta,.nav-cta{background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff!important;border-color:transparent;}
  .hero,.section,.container,main{padding-left:14px!important;padding-right:14px!important;}
  h1{font-size:clamp(26px,8vw,38px)!important;line-height:1.18!important;letter-spacing:-.04em;}
  h2{font-size:clamp(21px,6vw,28px)!important;line-height:1.28!important;}
  h3{font-size:clamp(17px,5vw,22px)!important;line-height:1.35!important;}
  p,li,td,th{font-size:15px;line-height:1.78;}
  .btn,.cta,.button,.primary-cta,.secondary-cta,.nav-cta{min-height:44px;white-space:normal;text-align:center;line-height:1.35;}
  .cta-row,.btn-row,.hero-actions,.action-row,.button-row{display:flex!important;flex-direction:column!important;gap:10px!important;align-items:stretch!important;}
  .cta-row a,.btn-row a,.hero-actions a,.action-row a,.button-row a{width:100%;max-width:100%;}
  .card,.panel,.box,.hero-box,.ranking-card,.casino-card,.review-card,.info-card{border-radius:18px!important;overflow:hidden;}
  .grid,.cards,.ranking-grid,.casino-grid,.review-grid,.feature-grid,.two-col,.three-col{display:grid!important;grid-template-columns:1fr!important;gap:14px!important;}
  .side-banner,.floating-banner,.left-banner,.right-banner,.pc-side-banner,.desktop-side-banner,.fixed-side-banner{display:none!important;}
  .mobile-sticky-cta,.sticky-mobile-cta{left:10px!important;right:10px!important;bottom:calc(8px + var(--mobile-safe-bottom))!important;width:auto!important;max-width:none!important;border-radius:18px!important;box-shadow:0 14px 34px rgba(20,20,20,.22)!important;}
  .mobile-sticky-cta a,.sticky-mobile-cta a{min-height:44px!important;}
  .popup,.modal,.promo-popup{max-width:calc(100vw - 24px)!important;max-height:calc(100vh - 120px)!important;overflow:auto!important;}
}
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important;}}