* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: Arial, sans-serif;
    }

    body {
      background: #f4f6fb;
      padding: 20px 0;
    }

    .container {
      max-width: 750px;
      margin: 0 auto;
      background: #fff;
      border-radius: 18px;
      box-shadow: 0 8px 24px rgba(0,0,0,.08);
      overflow: hidden;
      padding-bottom: 30px;
    }

    .main-banner {
      width: 100%;
      aspect-ratio: 3 / 2;
      max-height: 30vw;
      min-height: 140px;
      object-fit: cover;
      object-position: top;
      background: #e2e8f0;
      display: block;
    }

    .main-title {
      text-align: center;
      color: #d40000;
      font-size: 32px;
      font-weight: bold;
      margin-top: 25px;
      margin-bottom: 5px;
      text-transform: uppercase;
    }

    .sub-title {
      text-align: center;
      color: #555;
      font-size: 16px;
      margin-bottom: 30px;
    }

    .gallery-content {
      padding: 0 22px;
    }

    .gallery-item {
      border-top: 1px dashed #ddd;
      padding: 25px 0;
      text-align: center;
    }

    .gallery-item:first-child {
      border-top: none;
      padding-top: 10px;
    }

    .item-title {
      color: #d40000;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 12px;
    }

    .item-img {
      width: 100%;
      max-width: 600px;
      height: auto;
      min-height: 200px;
      background: #f1f5f9;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      display: inline-block;
      object-fit: cover;
      transition: transform 0.2s ease;
    }

    .item-img:hover {
      transform: scale(1.02);
    }

    .btn-wrap {
      text-align: center;
      margin-top: 30px;
      border-top: 1px solid #eee;
      padding-top: 20px;
    }

    .back {
      display: inline-block;
      background: navy;
      color: #fff;
      text-decoration: none;
      padding: 12px 25px;
      border-radius: 10px;
      font-weight: bold;
      transition: opacity 0.2s;
    }

    .back:hover {
      opacity: .85;
    }

    @media(max-width:600px) {
      .container {
        margin: 10px;
        border-radius: 12px;
      }
      .main-title {
        font-size: 26px;
      }
      .item-title {
        font-size: 17px;
      }
    }