* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  
  /* Global Styles */
  
  body {
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background-color: #f4f4f4;
  }
  
  a {
    text-decoration: none;
    color: #333;
  }
  
  ul {
    list-style: none;
  }

  h2 {
    font-size: 36px;
    margin-bottom: 20px;
    text-align: center;
  }

  header {
    background-color: #f4f4f4;
    color: #fff;
    padding: 20px;
    position: relative;
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  nav ul {
    display: flex;
  }
  
  nav li {
    margin: 0 10px;
  }
  
  nav a {
    color: #333;
  }
  
  nav a:hover {
    text-decoration: underline;
  }
  
  nav::after {
    content: '';
    clear: both;
    display: table;
  }
  
  nav a.logo {
    font-size: 24px;
    font-weight: bold;
  }
  
  .hero {
    background-image: url('image/bg.jpg');
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #f4f4f4;
    text-shadow:
    3px 3px 3px #444, -3px -3px 3px #444,
    -3px 3px 3px #444,  3px -3px 3px #444,
    3px 0px 3px #444, -3px -0px 3px #444,
    0px 3px 3px #444,  0px -3px 3px #444;    
  }
  
  .hero p {
    font-size: 24px;
    max-width: 800px;
    margin-bottom: 40px;
    line-height: 1.5;
    padding: 0 20px;
    color: #f4f4f4;
    text-shadow:
    3px 3px 3px #444, -3px -3px 3px #444,
   -3px 3px 3px #444,  3px -3px 3px #444,
    3px 0px 3px #444, -3px -0px 3px #444,
    0px 3px 3px #444,  0px -3px 3px #444;       
  }
  
  .features {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin: 40px 0;
  }
  
  .feature-item {
    flex-basis: 400px;
    margin: 20px;
    text-align: center;
  }
  
  .feature-item img {
    max-width: 100%;
  }
  
  .feature-item h3 {
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 10px;
  }
  
  .feature-item p {
    font-size: 18px;
    line-height: 1.5;
  }
  
  .case {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin: 40px 0;
  }
  
  .case-item {
    flex-basis: 300px;
    margin: 20px;
    text-align: center;
  }
  
  .case-item img {
    max-width: 100%;
    border-radius: 50%;
  }
  
  .case-item h3 {
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 10px;
  }
  
  .case-item p {
    font-size: 18px;
    line-height: 1.5;
  }
  
  .contact {
    background-color: #fff;
    padding: 40px;
    text-align: center;
  }
  
  .contact form {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .contact label {
    display: block;
    margin-bottom: 10px;
    text-align: left;
  }
  
  .contact input, .contact textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
  }
  
  .contact input:focus, .contact textarea:focus {
    outline: none;
    border-color: #333;
  }
  
  .contact textarea {
    resize: vertical;
    min-height: 200px;
  }
  
  .contact button[type='submit'] {
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
  }
  
  .contact button[type='submit']:hover {
    background-color: #444;
  }
  
  table {
    margin: 20px auto;
    width: 720px;
  }
  .tbl-r02 th {
    background: #eee;
    border: solid 1px #ccc;
    color: #555;
    padding: 10px;
  }
  .tbl-r02 td {
    border: solid 1px #ccc;
    padding: 10px;
  }
  
  /* Responsive Styles */
  
  @media screen and (max-width: 768px) {
    nav {
      flex-direction: column;
      align-items: flex-start;
    }
    nav ul {
      margin-top: 10px;
      display: flex;
      flex-direction: column;
      width: 100%;
      display: none;
      text-align: center;
    }
    nav ul.show {
      display: flex;
    }
    nav li {
      margin: 10px 0;
    }
    nav a.menu-icon {
      color: #fff;
      font-size: 24px;
      position: absolute;
      top: 20px;
      right: 20px;
      cursor: pointer;
      display: block;
    }
    .hero h1 {
      font-size: 36px;
      margin-bottom: 10px;
    }
    .hero p {
      font-size: 20px;
      margin-bottom: 20px;
    }
    .feature-item, .case-item {
      flex-basis: 100%;
    }
    .case-item h3 {
      margin-top: 10px;
    }
    .contact form {
      max-width: 400px;
      width: 100%;
    }
    .last td:last-child {
        border-bottom: solid 1px #ccc;
        width: 100%;
      }
      .tbl-r02 {
        width: 80%;
      }
      .tbl-r02 th, .tbl-r02 td {
        border-bottom: none;
        display: block;
        width: 100%;
      }
  }