:root {
      --bg: #f7f7f5;
      --card: #ffffff;
      --text: #222222;
      --sub: #666666;
      --line: #e7e7e2;
      --link: #2f6fed;
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      margin: 0;
      padding: 0;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
      line-height: 1.7;
    }

    .wrap {
      width: 100%;
      max-width: 720px;
      margin: 0 auto;
      padding: 24px 16px 48px;
    }

    .card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 24px 20px;
      box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
      text-align: center;
    }

    .brand {
      font-size: 14px;
      color: var(--sub);
      margin: 0 0 8px;
      letter-spacing: 0.04em;
    }

    h1 {
      font-size: 32px;
      line-height: 1.25;
      margin: 0 0 8px;
      font-weight: 700;
    }

    .subtitle {
      font-size: 18px;
      color: var(--sub);
      margin: 0 0 24px;
    }

    .desc {
      font-size: 16px;
      margin: 0 0 24px;
    }

    .links {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      margin-top: 8px;
    }

    .links .link-btn {
      width: 100%;
      max-width: 320px;
    }

    .link-btn {
      display: inline-block;
      padding: 10px 14px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--link);
      text-decoration: none;
      font-size: 15px;
      font-weight: 600;
      text-align: center;
    }

    .link-btn:hover {
      opacity: 0.9;
    }

    .note {
      margin-top: 24px;
      font-size: 13px;
      color: var(--sub);
    }

    footer {
      margin-top: 20px;
      font-size: 13px;
      color: var(--sub);
      text-align: center;
    }

    @media (max-width: 480px) {
      .wrap {
        padding: 16px 12px 36px;
      }

      .card {
        padding: 20px 16px;
        border-radius: 14px;
      }

      h1 {
        font-size: 28px;
      }

      .subtitle {
        font-size: 16px;
      }

      .desc {
        font-size: 15px;
      }

      .link-btn {
        width: 100%;
        text-align: center;
      }
    }

    .wide-wrap {
      max-width: 980px;
    }

    .sim-summary {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin: 22px 0;
    }

    .summary-box,
    .result-card,
    .chart-card,
    .rule-note,
    .sim-panel {
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
    }

    .summary-box {
      padding: 16px;
    }

    .summary-label {
      display: block;
      color: var(--sub);
      font-size: 13px;
      margin-bottom: 4px;
    }

    .summary-box strong {
      display: block;
      font-size: 28px;
      line-height: 1.2;
    }

    .sim-panel {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 14px;
      padding: 16px;
      margin: 22px 0;
    }

    .sim-panel label {
      display: block;
      font-size: 13px;
      color: var(--sub);
      margin-bottom: 6px;
    }

    .sim-panel select,
    .sim-panel button {
      min-height: 40px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: #fff;
      padding: 8px 12px;
      font: inherit;
    }

    .sim-panel button {
      color: var(--link);
      font-weight: 700;
      cursor: pointer;
    }

    .result-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin: 22px 0;
    }

    .result-card {
      padding: 16px;
    }

    .result-card h2,
    .chart-card h2,
    .table-section h2,
    .rule-note h2 {
      margin: 0 0 10px;
      font-size: 18px;
    }

    .result-card p {
      color: var(--sub);
      font-size: 13px;
      margin: 0 0 12px;
    }

    .result-card dl {
      margin: 0;
    }

    .result-card dl div {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      border-top: 1px solid var(--line);
      padding: 9px 0;
    }

    .result-card dt {
      color: var(--sub);
      font-size: 13px;
    }

    .result-card dd {
      margin: 0;
      font-weight: 700;
    }

    .chart-card,
    .rule-note {
      padding: 18px;
      margin: 22px 0;
    }

    .chart-legend {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      color: var(--sub);
      font-size: 13px;
      margin-bottom: 14px;
    }

    .legend-dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      margin-right: 6px;
      vertical-align: -1px;
    }

    .legend-dot.free,
    .bar.free {
      background: #dfe7f7;
    }

    .legend-dot.boost,
    .bar.boost {
      background: #dff2e5;
    }

    .legend-dot.sub,
    .bar.sub {
      background: #f7e8cf;
    }

    .chart-row {
      display: grid;
      grid-template-columns: 46px 1fr;
      gap: 10px;
      align-items: center;
      margin: 9px 0;
    }

    .chart-day {
      color: var(--sub);
      font-size: 13px;
    }

    .bars {
      display: grid;
      gap: 4px;
    }

    .bar {
      display: block;
      min-height: 20px;
      border-radius: 999px;
      padding: 1px 8px;
      white-space: nowrap;
    }

    .bar b {
      font-size: 12px;
      font-weight: 700;
    }

    .table-section {
      margin: 22px 0;
    }

    .table-scroll-note {
      display: none;
      margin: 0 0 8px;
      text-align: center;
      font-size: 13px;
      color: var(--sub);
    }

    @media (max-width: 720px) {
      .table-scroll-note {
        display: block;
      }
    }

    .table-wrap {
      overflow-x: auto;
      border: 1px solid var(--line);
      border-radius: 14px;
      -webkit-overflow-scrolling: touch;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      min-width: 560px;
    }

    th,
    td {
      padding: 10px 12px;
      border-bottom: 1px solid var(--line);
      text-align: right;
      font-size: 14px;
    }

    th:first-child,
    td:first-child {
      text-align: left;
    }

    th {
      background: #fafafa;
      color: var(--sub);
      font-weight: 700;
    }

    tr:last-child td {
      border-bottom: 0;
    }

    .first-hit {
      font-weight: 800;
      position: relative;
    }

    .hit-300 {
      background: #fff4c2;
    }

    .hit-600 {
      background: #e2f4df;
    }

    .first-hit::after {
      content: "到達";
      display: inline-block;
      margin-left: 6px;
      padding: 1px 6px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.72);
      color: var(--sub);
      font-size: 11px;
      font-weight: 700;
      vertical-align: 1px;
    }

    .rule-note p {
      margin: 0 0 8px;
      font-size: 14px;
      color: var(--sub);
    }

    .page-bottom-links {
      margin-top: 24px;
    }

    @media (max-width: 720px) {

      .sim-summary,
      .result-grid {
        grid-template-columns: 1fr;
      }

      .sim-panel {
        align-items: stretch;
        flex-direction: column;
      }

      .sim-panel button,
      .sim-panel select {
        width: 100%;
      }
    }

    .primary {
      background: #333;
      color: #fff;
    }

    .section-title {
      font-size: 12px;
      color: #888;
      margin: 12px 0 6px;
    }

    .app-icon {
      width: 120px;
      height: 120px;
      border-radius: 24px;
      display: block;
      margin: 16px auto 20px;
    }

    .policy {
      text-align: left;
    }

    .sim-note {
      text-align: left;
      max-width: 520px;
      margin: 0 auto;
    }

    .guide-wrap {
      max-width: 720px;
    }

    .guide-card {
      text-align: left;
    }

    .guide-card h1 {
      text-align: center;
    }

    .guide-lead {
      margin-bottom: 24px;
      color: var(--sub);
      line-height: 1.7;
      text-align: center;
    }

    .step {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      margin-bottom: 16px;
    }

    .step:last-child {
      margin-bottom: 0;
    }

    .stepNumber {
      width: 32px;
      height: 32px;
      border-radius: 999px;
      background: #4f8cff;
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    .stepBody {
      line-height: 1.7;
    }

    .simpleList {
      margin: 0;
      padding-left: 20px;
    }

    .simpleList li {
      margin-bottom: 10px;
      line-height: 1.7;
    }

    .simpleList li:last-child {
      margin-bottom: 0;
    }

    .guide-card p {
      line-height: 1.8;
      margin-top: 0;
    }

    .guide-card p:last-child {
      margin-bottom: 0;
    }

    .faqItem {
      margin-bottom: 18px;
    }

    .faqItem:last-child {
      margin-bottom: 0;
    }

    .faqQ {
      font-weight: bold;
      margin-bottom: 8px;
    }

    .faqA {
      color: var(--sub);
      line-height: 1.8;
    }

    .guide-card>section {
      margin-top: 18px;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
    }

    .guide-card>section:first-of-type {
      margin-top: 0;
    }

    .guide-card h2 {
      margin: 0 0 16px;
      font-size: 22px;
    }

    .guide-card .page-bottom-links {
      margin-top: 28px;
    }

    @media (max-width: 640px) {
      .guide-wrap {
        padding: 14px 10px 36px;
      }

      .guide-card {
        padding: 18px 14px;
        border-radius: 14px;
      }

      .guide-card h1 {
        font-size: 26px;
        line-height: 1.3;
        margin-bottom: 10px;
      }

      .guide-lead {
        margin-bottom: 18px;
        font-size: 14px;
        line-height: 1.75;
      }

      .guide-card>section {
        margin-top: 12px;
        padding: 14px 12px;
        border-radius: 12px;
      }

      .guide-card h2 {
        margin-bottom: 12px;
        font-size: 19px;
        line-height: 1.35;
      }

      .guide-card p {
        font-size: 15px;
        line-height: 1.75;
      }

      .step {
        gap: 10px;
        margin-bottom: 12px;
      }

      .stepNumber {
        width: 28px;
        height: 28px;
        font-size: 14px;
      }

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

      .simpleList {
        padding-left: 18px;
      }

      .simpleList li {
        margin-bottom: 8px;
        font-size: 15px;
        line-height: 1.75;
      }

      .faqItem {
        margin-bottom: 14px;
      }

      .faqQ {
        margin-bottom: 6px;
        font-size: 15px;
      }

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

      .guide-card .page-bottom-links {
        margin-top: 22px;
      }

      .guide-card .link-btn {
        width: 100%;
        max-width: none;
      }
    }

    @media (max-width: 360px) {
      .guide-card {
        padding: 16px 12px;
      }

      .guide-card h1 {
        font-size: 24px;
      }

      .guide-card>section {
        padding: 12px 10px;
      }

      .guide-card h2 {
        font-size: 18px;
      }
    }

    .guideMessage {
      margin: 28px 0 0;
      text-align: center;
      color: var(--sub);
      font-size: 15px;
      line-height: 1.8;
    }