/* page banner */
    .page-banner {
      margin-top: 80px;
      background: linear-gradient(145deg, #0a192f 0%, #1e3a5f 100%);
      padding: 100px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .page-banner::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('https://picsum.photos/id/95/1600/600');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      z-index: 0;
    }
    .page-banner .container {
      position: relative;
      z-index: 2;
    }
    .page-banner h1 {
      font-size: 56px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 20px;
      text-shadow: 0 2px 8px rgba(0,0,0,0.2);
    }
    .page-banner p {
      font-size: 22px;
      color: #e0e4e8;
      max-width: 700px;
      margin: 0 auto;
    }
    .page-banner .gold-line {
      width: 100px;
      height: 4px;
      background: #d4af37;
      margin: 25px auto 0;
    }

    /* solutions grid (card style) */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 40px;
      margin: 80px 0;
    }
    .solution-card {
      background: #ffffff;
      border-radius: 24px;
      padding: 40px 32px;
      box-shadow: 0 15px 35px rgba(0,20,40,0.06);
      border: 1px solid #eef2f6;
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    }
    .solution-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 25px 50px rgba(0,30,60,0.12);
      border-color: rgba(212,175,55,0.3);
    }
    .solution-icon {
      width: 80px;
      height: 80px;
      background: #0a192f;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 30px;
      color: #d4af37;
      font-size: 40px;
      border: 2px solid #d4af37;
    }
    .solution-card h2 {
      font-size: 28px;
      font-weight: 600;
      color: #0a192f;
      margin-bottom: 20px;
      border-bottom: 2px solid #d4af37;
      padding-bottom: 12px;
      display: inline-block;
    }
    .solution-description {
      font-size: 16px;
      color: #33475b;
      margin-bottom: 25px;
      line-height: 1.7;
    }
    .solution-key-points {
      list-style: none;
      margin-top: 15px;
    }
    .solution-key-points li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 12px;
      font-size: 15px;
      color: #2b3f59;
    }
    .solution-key-points i {
      color: #d4af37;
      font-size: 18px;
      margin-top: 2px;
      flex-shrink: 0;
    }

    /* responsive */
    @media (max-width: 992px) {
      .solutions-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer .container { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-menu { display: none; }
      .page-banner h1 { font-size: 42px; }
      .solution-card { padding: 30px 20px; }
    }