:root {
      --em-blue: #009fe3;
      --em-blue-2: #38c7f3;
      --em-blue-dark: #005f95;
      --em-navy: #0e314f;
      --em-ink: #243648;
      --em-muted: #667a8c;
      --em-light: #f3fbff;
      --em-sky: #e7f8ff;
      --em-line: #d7edf7;
      --em-white: #ffffff;
      --em-green: #20b486;
      --em-orange: #f5a524;
      --em-red: #ef5b5b;
      --em-purple: #8067dc;
      --em-radius: 26px;
      --em-shadow: 0 22px 58px rgba(0, 95, 149, 0.13);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      color: var(--em-ink);
      background:
        radial-gradient(circle at 7% 2%, rgba(0,159,227,0.16), transparent 31%),
        radial-gradient(circle at 93% 10%, rgba(56,199,243,0.16), transparent 34%),
        linear-gradient(180deg, #ffffff 0%, #f4fbff 38%, #ffffff 70%, #f7fcff 100%);
      line-height: 1.72;
    }

    a { color: inherit; text-decoration: none; }
    .em-blog { overflow: hidden; }
    .em-wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }

    .em-badge {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 15px;
      border-radius: 999px;
      background: var(--em-sky);
      color: var(--em-blue-dark);
      border: 1px solid rgba(0,159,227,0.18);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .em-badge::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: var(--em-blue);
      box-shadow: 0 0 0 6px rgba(0,159,227,0.13);
    }

    .em-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 52px;
      padding: 14px 22px;
      border-radius: 999px;
      font-weight: 900;
      transition: 0.25s ease;
      white-space: nowrap;
    }

    .em-btn-primary {
      color: #ffffff;
      background: linear-gradient(135deg, var(--em-blue), var(--em-blue-2));
      box-shadow: 0 16px 36px rgba(0,159,227,0.28);
    }

    .em-btn-secondary {
      color: var(--em-navy);
      background: #ffffff;
      border: 1px solid var(--em-line);
      box-shadow: 0 12px 28px rgba(0,95,149,0.07);
    }

    .em-btn:hover { transform: translateY(-2px); text-decoration: none; }

    .hero {
      min-height: 720px;
      padding: 68px 0 48px;
      display: grid;
      grid-template-columns: 1.03fr 0.97fr;
      gap: 42px;
      align-items: center;
    }

    .hero h1 {
      margin: 22px 0 18px;
      color: var(--em-navy);
      font-size: clamp(38px, 5.2vw, 70px);
      line-height: 1.02;
      letter-spacing: -0.06em;
    }

    .hero p { margin: 0; max-width: 700px; color: #4f6477; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
    .hero-proof { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

    .proof-pill {
      padding: 8px 12px;
      border-radius: 999px;
      background: #ffffff;
      border: 1px solid var(--em-line);
      color: var(--em-muted);
      font-size: 13px;
      font-weight: 800;
      box-shadow: 0 10px 24px rgba(0,95,149,0.05);
    }

    .image-frame {
      margin: 0;
      position: relative;
      overflow: hidden;
      border-radius: 44px;
      background: #ffffff;
      border: 1px solid rgba(0,159,227,0.22);
      box-shadow: var(--em-shadow);
    }

    .image-frame img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center;
    }

    .hero-image-frame {
      aspect-ratio: 3 / 2;
      min-height: 520px;
    }

    .hero-image-frame img {
      aspect-ratio: 3 / 2;
    }

    .product-img-frame {
      aspect-ratio: 4 / 3;
      border-radius: 34px;
      border-color: rgba(255,255,255,0.24);
      box-shadow: none;
      background: rgba(255,255,255,0.12);
    }

    .product-img-frame img {
      aspect-ratio: 4 / 3;
      border-radius: 34px;
    }

    .answer-box {
      margin: 0 0 54px;
      padding: 34px;
      border-radius: 34px;
      color: #ffffff;
      background:
        radial-gradient(circle at 88% 10%, rgba(56,199,243,0.34), transparent 36%),
        linear-gradient(135deg, var(--em-navy), var(--em-blue-dark));
      box-shadow: 0 26px 65px rgba(0,95,149,0.22);
      display: grid;
      grid-template-columns: 0.43fr 1fr;
      gap: 28px;
      align-items: center;
    }

    .answer-box h2 {
      margin: 0;
      color: #ffffff;
      font-size: clamp(28px, 3.2vw, 42px);
      line-height: 1.1;
      letter-spacing: -0.045em;
    }

    .answer-box p { margin: 0; color: rgba(255,255,255,0.88); font-size: 17px; }

    .toc { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0 0 60px; }

    .toc-card {
      min-height: 142px;
      padding: 22px;
      border-radius: 24px;
      background: rgba(255,255,255,0.9);
      border: 1px solid var(--em-line);
      box-shadow: 0 16px 36px rgba(0,95,149,0.06);
      transition: 0.25s ease;
    }

    .toc-card:hover { transform: translateY(-4px); }
    .toc-card span { display: block; margin-bottom: 12px; color: var(--em-blue); font-size: 28px; font-weight: 900; letter-spacing: -0.05em; }
    .toc-card a { color: var(--em-navy); font-size: 15px; font-weight: 900; }

    section { margin: 64px 0; }

    .section-head {
      display: grid;
      grid-template-columns: 0.55fr 1fr;
      gap: 28px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--em-navy);
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.1;
      letter-spacing: -0.05em;
    }

    .section-head p { margin: 0; color: var(--em-muted); font-size: 17px; }

    .skin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

    .skin-card {
      min-height: 260px;
      padding: 26px;
      border-radius: var(--em-radius);
      background: #ffffff;
      border: 1px solid var(--em-line);
      box-shadow: 0 16px 36px rgba(0,95,149,0.07);
      position: relative;
      overflow: hidden;
    }

    .skin-card::after {
      content: "";
      position: absolute;
      width: 154px;
      height: 154px;
      right: -72px;
      bottom: -72px;
      border-radius: 999px;
      background: rgba(0,159,227,0.08);
    }

    .skin-icon {
      width: 54px;
      height: 54px;
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: #ffffff;
      font-size: 22px;
      font-weight: 900;
      background: linear-gradient(135deg, var(--em-blue), var(--em-blue-2));
      box-shadow: 0 12px 26px rgba(0,159,227,0.22);
    }

    .skin-icon.green { background: linear-gradient(135deg, var(--em-green), #71d8bb); }
    .skin-icon.orange { background: linear-gradient(135deg, var(--em-orange), #ffd37a); }
    .skin-icon.purple { background: linear-gradient(135deg, var(--em-purple), #a895ff); }

    .skin-card h3 { margin: 0 0 10px; color: var(--em-navy); font-size: 21px; line-height: 1.22; position: relative; z-index: 1; }
    .skin-card p { margin: 0; color: var(--em-muted); font-size: 15px; position: relative; z-index: 1; }

    .table-card { overflow: hidden; border-radius: 32px; background: #ffffff; border: 1px solid var(--em-line); box-shadow: var(--em-shadow); }

    .table-top {
      padding: 26px 28px;
      background:
        radial-gradient(circle at top right, rgba(56,199,243,0.28), transparent 36%),
        linear-gradient(135deg, #ecfbff, #ffffff);
      border-bottom: 1px solid var(--em-line);
    }

    .table-top strong { display: block; color: var(--em-navy); font-size: 23px; margin-bottom: 5px; }
    .table-top span { color: var(--em-muted); font-size: 15px; }
    .table-wrap { overflow-x: auto; }
    table { width: 100%; border-collapse: collapse; min-width: 920px; }
    th, td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid #edf6fb; }
    th { color: var(--em-navy); background: #f5fcff; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; }
    td:first-child { color: var(--em-navy); font-weight: 900; }
    tr:last-child td { border-bottom: none; }

    .status { display: inline-flex; padding: 5px 10px; border-radius: 999px; color: #ffffff; font-size: 12px; font-weight: 900; white-space: nowrap; }
    .status.good { background: var(--em-green); }
    .status.ok { background: var(--em-blue); }
    .status.caution { background: var(--em-orange); }
    .status.stop { background: var(--em-red); }

    .protocol-panel { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 24px; align-items: stretch; }

    .protocol-left, .protocol-right {
      padding: 32px;
      border-radius: 32px;
      background: #ffffff;
      border: 1px solid var(--em-line);
      box-shadow: var(--em-shadow);
    }

    .protocol-left {
      background:
        radial-gradient(circle at top right, rgba(56,199,243,0.22), transparent 35%),
        linear-gradient(135deg, #ebfaff, #ffffff);
    }

    .protocol-left h3, .protocol-right h3 { margin: 0 0 12px; color: var(--em-navy); font-size: 30px; line-height: 1.14; letter-spacing: -0.04em; }
    .protocol-left p, .protocol-right p { margin: 0; color: var(--em-muted); font-size: 16px; }

    .steps { display: grid; gap: 12px; margin-top: 20px; }

    .step {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 13px;
      align-items: start;
      padding: 14px;
      border-radius: 18px;
      background: #ffffff;
      border: 1px solid var(--em-line);
    }

    .step b {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      background: linear-gradient(135deg, var(--em-blue), var(--em-blue-2));
      font-size: 14px;
    }

    .step strong { display: block; color: var(--em-navy); font-size: 16px; margin-bottom: 3px; }
    .step span { color: var(--em-muted); font-size: 14px; line-height: 1.45; }

    .note-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; }
    .note-list li { position: relative; padding-left: 34px; color: #4b6175; font-weight: 700; }

    .note-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 2px;
      width: 23px;
      height: 23px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--em-green), #71d8bb);
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 900;
    }

    .mistake-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

    .mistake-card {
      padding: 24px;
      border-radius: 24px;
      background: #ffffff;
      border: 1px solid var(--em-line);
      box-shadow: 0 16px 36px rgba(0,95,149,0.07);
    }

    .mistake-card strong { display: block; color: var(--em-navy); font-size: 19px; margin-bottom: 8px; }
    .mistake-card p { margin: 0; color: var(--em-muted); font-size: 15px; }

    .product-cta {
      display: grid;
      grid-template-columns: 1fr 0.95fr;
      gap: 30px;
      align-items: center;
      padding: 38px;
      border-radius: 42px;
      overflow: hidden;
      color: #ffffff;
      background:
        radial-gradient(circle at 82% 14%, rgba(56,199,243,0.35), transparent 34%),
        linear-gradient(135deg, var(--em-navy), var(--em-blue-dark));
      box-shadow: 0 28px 72px rgba(0,95,149,0.24);
    }

    .product-cta h2 {
      margin: 0 0 14px;
      color: #ffffff;
      font-size: clamp(30px, 3.5vw, 48px);
      line-height: 1.1;
      letter-spacing: -0.05em;
    }

    .product-cta p { margin: 0 0 24px; color: rgba(255,255,255,0.86); font-size: 17px; }
    .product-cta .em-btn { background: #ffffff; color: var(--em-navy); width: fit-content; }

    .faq { display: grid; gap: 14px; }
    details { background: #ffffff; border: 1px solid var(--em-line); border-radius: 22px; padding: 20px 22px; box-shadow: 0 14px 32px rgba(0,95,149,0.06); }
    summary { cursor: pointer; color: var(--em-navy); font-size: 17px; font-weight: 900; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; float: right; color: var(--em-blue); font-size: 24px; line-height: 1; }
    details[open] summary::after { content: "−"; }
    details p { margin: 12px 0 0; color: var(--em-muted); }

    .final-cta {
      margin: 70px 0 86px;
      padding: 42px 28px;
      text-align: center;
      border-radius: 36px;
      background: #ffffff;
      border: 1px solid var(--em-line);
      box-shadow: var(--em-shadow);
    }

    .final-cta h2 { margin: 0 0 12px; color: var(--em-navy); font-size: clamp(28px, 3.4vw, 44px); line-height: 1.12; letter-spacing: -0.045em; }
    .final-cta p { max-width: 780px; margin: 0 auto 24px; color: var(--em-muted); font-size: 17px; }
    .disclaimer { margin-top: 18px; color: #8798a7; font-size: 13px; line-height: 1.55; }

    @media (max-width: 980px) {
      .hero, .answer-box, .section-head, .protocol-panel, .product-cta { grid-template-columns: 1fr; }
      .hero { min-height: auto; }
      .toc, .skin-grid, .mistake-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-image-frame { min-height: auto; }
      .product-cta .em-btn { width: fit-content; }
    }

    @media (max-width: 700px) {
      .em-wrap { width: min(100% - 22px, 1180px); }
      .hero { padding-top: 42px; gap: 28px; }
      .hero h1 { font-size: 38px; }
      .hero p, .section-head p { font-size: 16px; }
      .hero-actions { flex-direction: column; }
      .em-btn { width: 100%; }
      .image-frame, .hero-image-frame, .product-img-frame, .product-img-frame img { border-radius: 30px; }
      .answer-box, .protocol-left, .protocol-right, .product-cta, .final-cta { padding: 24px; border-radius: 28px; }
      .toc, .skin-grid, .mistake-grid { grid-template-columns: 1fr; }
      .product-cta .em-btn { width: 100%; }
    }