:root {
      --navy: #071827;
      --blue: #0b74d1;
      --cyan: #34c7ff;
      --ice: #f3f9ff;
      --white: #ffffff;
      --text: #25364a;
      --muted: #657789;
      --line: #dce9f4;
      --soft: #f7fbff;
      --green: #16a37b;
      --amber: #f59e0b;
      --red: #e75b5b;
      --shadow: 0 20px 55px rgba(7, 24, 39, 0.12);
      --radius: 28px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(52, 199, 255, 0.12), transparent 30%),
        linear-gradient(180deg, #f6fbff 0%, #ffffff 42%, #f8fbff 100%);
      line-height: 1.72;
    }

    a {
      color: var(--blue);
      font-weight: 800;
      text-decoration: none;
    }

    a:hover {
      text-decoration: underline;
    }

    .eml-blog {
      width: 100%;
      overflow: hidden;
    }

    .wrap {
      width: min(1180px, calc(100% - 36px));
      margin: 0 auto;
    }

    .eml-blog img {
      max-width: 100%;
      height: auto;
    }

    .media-box {
      width: 100%;
      overflow: hidden;
      border-radius: 24px;
      background: linear-gradient(135deg, #eaf6ff, #ffffff);
      border: 1px solid rgba(255,255,255,0.14);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-box img {
      width: 100% !important;
      height: 100% !important;
      display: block;
      object-fit: contain !important;
      object-position: center center !important;
    }

    .media-cover img {
      object-fit: cover !important;
    }

    .ratio-1200-900 {
      aspect-ratio: 1200 / 900;
    }

    .ratio-1200-800 {
      aspect-ratio: 1200 / 800;
    }

    .ratio-square {
      aspect-ratio: 1 / 1;
    }

    .hero {
      position: relative;
      padding: 78px 0 56px;
      background:
        linear-gradient(135deg, rgba(7, 24, 39, 0.98), rgba(9, 47, 83, 0.96)),
        linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,0.045) 1px, transparent 1px);
      background-size: auto, 46px 46px, 46px 46px;
      color: #fff;
    }

    .hero::after {
      content: "";
      position: absolute;
      right: -160px;
      top: -170px;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(52,199,255,0.28), transparent 70%);
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.03fr 0.97fr;
      gap: 42px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 1.1px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 34px;
      height: 2px;
      background: var(--cyan);
      display: inline-block;
    }

    h1 {
      margin: 0 0 22px;
      color: #fff;
      font-size: clamp(36px, 5.4vw, 68px);
      line-height: 1.04;
      letter-spacing: -1.7px;
    }

    .hero-lead {
      color: rgba(255,255,255,0.78);
      font-size: 18px;
      max-width: 740px;
      margin: 0 0 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }

    .btn {
      min-height: 48px;
      padding: 13px 22px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      transition: 0.25s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--cyan), var(--blue));
      color: #fff;
      box-shadow: 0 16px 34px rgba(52,199,255,0.24);
    }

    .btn-light {
      background: rgba(255,255,255,0.08);
      color: #fff;
      border: 1px solid rgba(255,255,255,0.2);
      backdrop-filter: blur(10px);
    }

    .btn-white {
      background: #fff;
      color: var(--navy);
      box-shadow: none;
    }

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

    .hero-card {
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 34px;
      padding: 14px;
      box-shadow: 0 30px 80px rgba(0,0,0,0.26);
      backdrop-filter: blur(14px);
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 12px;
    }

    .hero-point {
      text-align: center;
      padding: 13px 10px;
      border-radius: 18px;
      border: 1px solid rgba(255,255,255,0.13);
      background: rgba(255,255,255,0.08);
    }

    .hero-point strong {
      display: block;
      color: #fff;
      line-height: 1.2;
      font-size: 16px;
    }

    .hero-point span {
      color: rgba(255,255,255,0.68);
      font-size: 12px;
    }

    .summary-strip {
      transform: translateY(-26px);
      position: relative;
      z-index: 3;
    }

    .summary-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 30px;
      box-shadow: var(--shadow);
      padding: 26px;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 18px;
    }

    .summary-item {
      padding: 18px;
      border-radius: 22px;
      background: var(--soft);
      border: 1px solid var(--line);
    }

    .summary-item small {
      display: block;
      color: var(--blue);
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 0.7px;
      margin-bottom: 6px;
    }

    .summary-item strong {
      color: var(--navy);
      display: block;
      font-size: 19px;
      line-height: 1.25;
      margin-bottom: 6px;
    }

    .summary-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14.5px;
    }

    .layout {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 34px;
      align-items: start;
      padding: 24px 0 70px;
    }

    .toc {
      position: sticky;
      top: 22px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .toc-head {
      padding: 22px;
      background: linear-gradient(135deg, var(--navy), #0a355c);
      color: #fff;
    }

    .toc-head small {
      color: var(--cyan);
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .toc-head h2 {
      color: #fff;
      font-size: 23px;
      line-height: 1.18;
      margin: 8px 0 0;
    }

    .toc-links {
      padding: 14px;
      display: grid;
      gap: 8px;
    }

    .toc-links a {
      color: var(--text);
      font-size: 14px;
      padding: 11px 13px;
      border-radius: 15px;
      background: #f8fbff;
      border: 1px solid transparent;
      font-weight: 800;
    }

    .toc-links a:hover {
      color: var(--blue);
      background: #eef8ff;
      border-color: var(--line);
      text-decoration: none;
    }

    .article {
      display: grid;
      gap: 28px;
    }

    .block {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 32px;
      padding: 34px;
      box-shadow: 0 16px 48px rgba(7,24,39,0.08);
    }

    .kicker {
      color: var(--blue);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    h2 {
      color: var(--navy);
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.14;
      letter-spacing: -0.7px;
      margin: 0 0 16px;
    }

    h3 {
      color: var(--navy);
      font-size: 22px;
      line-height: 1.25;
      margin: 0 0 10px;
    }

    p {
      color: var(--muted);
      margin: 0 0 14px;
    }

    .answer-box {
      background: linear-gradient(135deg, #eaf7ff, #ffffff);
      border: 1px solid #cfe9fb;
      border-left: 6px solid var(--blue);
      border-radius: 24px;
      padding: 24px;
      margin-top: 18px;
    }

    .answer-box strong {
      color: var(--navy);
      display: block;
      font-size: 20px;
      margin-bottom: 8px;
    }

    .answer-box p {
      margin: 0;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: start;
    }

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

    .mini-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 24px;
      padding: 22px;
      box-shadow: 0 10px 28px rgba(7,24,39,0.06);
    }

    .mini-icon {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      background: #eaf6ff;
      color: var(--blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .mini-card p {
      font-size: 15px;
      margin: 0;
    }

    .dark-panel {
      background: linear-gradient(135deg, rgba(7,24,39,0.98), rgba(10,53,92,0.96));
      color: #fff;
      border-radius: 34px;
      padding: 38px;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .dark-panel::after {
      content: "";
      position: absolute;
      right: -120px;
      top: -120px;
      width: 330px;
      height: 330px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(52,199,255,0.25), transparent 70%);
    }

    .dark-panel h2,
    .dark-panel p,
    .dark-panel a,
    .dark-panel .grid-3 {
      position: relative;
      z-index: 1;
    }

    .dark-panel h2 {
      color: #fff;
    }

    .dark-panel p {
      color: rgba(255,255,255,0.76);
    }

    .protocol-list {
      list-style: none;
      margin: 18px 0 0;
      padding: 0;
      display: grid;
      gap: 12px;
    }

    .protocol-list li {
      position: relative;
      padding: 14px 16px 14px 46px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: #f8fbff;
      color: var(--muted);
    }

    .protocol-list li::before {
      content: "✓";
      position: absolute;
      left: 16px;
      top: 13px;
      color: var(--green);
      font-weight: 900;
    }

    .warning-list li::before {
      content: "!";
      color: var(--amber);
    }

    .table-wrap {
      margin-top: 22px;
      border: 1px solid var(--line);
      border-radius: 24px;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
    }

    table {
      width: 100%;
      min-width: 760px;
      border-collapse: collapse;
      background: #fff;
    }

    th,
    td {
      padding: 17px 18px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
      font-size: 15px;
    }

    th {
      background: var(--navy);
      color: #fff;
    }

    td {
      color: var(--muted);
    }

    td:first-child {
      color: var(--navy);
      font-weight: 900;
    }

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

    .badge {
      display: inline-flex;
      padding: 5px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      margin-top: 7px;
    }

    .badge-green {
      background: #e8fff6;
      color: var(--green);
    }

    .badge-amber {
      background: #fff7e8;
      color: #a76a00;
    }

    .badge-blue {
      background: #eaf6ff;
      color: var(--blue);
    }

    .faq {
      display: grid;
      gap: 13px;
      margin-top: 22px;
    }

    details {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 18px 20px;
      box-shadow: 0 8px 22px rgba(7,24,39,0.05);
    }

    summary {
      cursor: pointer;
      color: var(--navy);
      font-weight: 900;
      font-size: 17px;
    }

    details p {
      margin: 12px 0 0;
    }

    .notice {
      margin-top: 22px;
      padding: 18px 20px;
      border-radius: 20px;
      border-left: 5px solid var(--amber);
      background: #fff9eb;
      color: #76521a;
      font-size: 15px;
    }

    .cta {
      background:
        linear-gradient(135deg, rgba(11,116,209,0.96), rgba(52,199,255,0.94));
      border-radius: 34px;
      padding: 38px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      align-items: center;
      box-shadow: var(--shadow);
    }

    .cta h2 {
      color: #fff;
      margin-bottom: 10px;
    }

    .cta p {
      color: rgba(255,255,255,0.9);
      margin: 0;
    }

    .cta .btn-white {
      justify-self: end;
    }

    .footer-note {
      text-align: center;
      color: var(--muted);
      font-size: 14px;
      padding: 26px 0 44px;
    }

    @media (max-width: 980px) {
      .hero-grid,
      .layout,
      .grid-2,
      .cta {
        grid-template-columns: 1fr;
      }

      .toc {
        position: relative;
        top: auto;
      }

      .grid-3,
      .summary-card {
        grid-template-columns: 1fr;
      }

      .cta .btn-white {
        justify-self: start;
      }
    }

    @media (max-width: 640px) {
      .wrap {
        width: min(100% - 24px, 1180px);
      }

      .hero {
        padding: 54px 0 44px;
      }

      h1 {
        font-size: 36px;
      }

      .hero-lead {
        font-size: 16px;
      }

      .hero-points {
        grid-template-columns: 1fr;
      }

      .block,
      .dark-panel,
      .cta {
        padding: 24px;
        border-radius: 26px;
      }

      .summary-strip {
        transform: translateY(-16px);
      }
    }