body {
      margin: 0;
      font-family: "Helvetica Neue", sans-serif;
      background-color: #f0f3f8;
      color: #2a2a3c;
      padding: 1rem 1.5rem 3rem;
      line-height: 1.6;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    header {
      position: relative;
      display: flex;
      align-items: center;
      padding: 1rem 0;
    }

    button.back-btn {
      position: relative;
      z-index: 10;
      background-color: #f0f3f8;
      border: none;
      color: #2a3a62;
      font-size: 1.1rem;
      cursor: pointer;
      padding: 0.3rem 0.8rem;
      border-radius: 6px;
      transition: background-color 0.25s ease;
      user-select: none;
      margin-left: 0;
      padding-left: 0.1rem;
    }

    button.back-btn:hover {
      background-color: #e0e6f1;
    }

    h1 {
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      margin: 0;
      font-weight: 700;
      font-size: 1.6rem;
      color: #2a3a62;
      letter-spacing: 0.8px;
      pointer-events: none;
    }

    h2 {
      color: #2a3a62;
      font-weight: 600;
      margin-top: 2rem;
      margin-bottom: 0.8rem;
      font-size: 1.25rem;
    }

    p {
      margin-bottom: 1rem;
      font-size: 1rem;
      color: #4a4a5a;
      text-indent: 2em;
    }

strong {
  font-weight: 600;
  color: #2a3a62;
  padding: 0 0.15em;
  border-radius: 3px;
}




    img {
      display: block;
      max-width: 100%;
      margin: 1.5rem auto;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    footer {
      text-align: center;
      font-size: 0.85rem;
      color: #888a94;
      margin-top: 4rem;
      user-select: none;
    }

    @media (max-width: 600px) {
      body {
        padding: 1rem 1rem 2rem;
      }
    }