html, body {
      margin: 0;
      padding: 0;
      height: auto;
      overflow-y: auto;
      font-family: 'Segoe UI', sans-serif;
      background-color: #f8f8f8;
    }
    
    body {
      margin: 0;
      background-color: #f8f8f8;
    }

    #header {
      background-color: black;
      color: white;
    }

    /* Hero 영역 */
    .hero {
      background: url("../images/main/mainImg.jpg") no-repeat center center/cover;
      color: white;
      text-align: center;
      padding: 120px 20px;
      height: 300px;
      position: relative;
    }

    .hero h1 {
      font-size: 42px;
      font-weight: bold;
      margin-bottom: 10px;
    }

    .hero p {
      font-size: 20px;
    }

    /* 본문 레이아웃 */
    .main-container {
      display: flex;
      max-width: 1200px;
      margin: 50px auto;
      gap: 30px;
      padding: 0 20px;
    }

    .left-content {
      flex: 2;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .post-card {
      background: white;
      border-radius: 10px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.06);
      display: flex;
      align-items: center;
      padding: 15px;
      gap: 20px;
      cursor: pointer;
      transition: 0.2s ease;
    }

    .post-card:hover {
      transform: translateY(-3px);
    }

    .post-card img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 8px;
    }

    .post-card-content {
      flex: 1;
    }

    .post-card-title {
      font-size: 16px;
      font-weight: bold;
      margin-bottom: 6px;
    }

    .post-card-desc {
      font-size: 14px;
      color: #444;
    }

    .right-sidebar {
      flex: 1;
      background: white;
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.06);
      text-align: center;
      border: 9px solid papayawhip;
    }

    .right-sidebar h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }

    .right-sidebar p {
      font-size: 14px;
      color: #777;
    }

    @media screen and (max-width: 768px) {
      .main-container {
        flex-direction: column;
      }

      .post-card {
        flex-direction: column;
        text-align: center;
      }

      .post-card img {
        width: 80%;
        height: auto;
      }
    }
    
    #header {
      min-height: 45px;
    }