body {
  font-family: Arial, sans-serif;
  max-width: 768px;
  margin: 0;
  padding: 10px;
  line-height: 1.6;
  color: #333;
}
.site-header {
  background-color: #f8f9fa;
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid #e9ecef;
}
.site-header h1 {
  margin: 0;
  font-size: 2.2rem;
  color: #2c3e50;
}
.site-header h2 {
  margin: 5px 0 0;
  font-size: 1.2rem;
  color: #7f8c8d;
  font-weight: normal;
}
.flexmenu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  position: absolute;
  top: 20px;
  right: 20px;
}
.flexmenu-line {
  display: block;
  width: 25px;
  height: 3px;
  background-color: #2c3e50;
  margin: 5px 0;
}
.main-menu ul {
  list-style: none;
  padding: 0;
  margin: 15px 0 0;
  display: flex;
  justify-content: center;
  gap: 20px;
}
.main-menu li {
  margin: 0;
}
.main-menu a {
  text-decoration: none;
  color: #2c3e50;
  font-weight: bold;
  padding: 5px 10px;
  border-radius: 4px;
  transition: background-color 0.3s;
}
.main-menu a:hover {
  background-color: #e9ecef;
}
.main-content {
  max-width: 768px;
  margin: 20px auto;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.site-footer {
  background-color: #2c3e50;
  color: #ecf0f1;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.footer-contact {
  flex: 1;
  min-width: 250px;
  padding: 0 15px;
}
.footer-contact h3 {
  margin-top: 0;
  font-size: 1.2rem;
}
.footer-contact p {
  margin: 5px 0;
}
.footer-image {
  flex: 1;
  min-width: 250px;
  padding: 0 15px;
  text-align: center;
}
.footer-image img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}
.center {
  text-align: center;
}
@media (max-width: 768px) {
  .flexmenu {
    display: block;
    position: absolute;
    top: 10px;
    right: 20px;
  }
  .main-menu ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 50px;
    left: 0;
    width: 100%;
    background-color: #f8f9fa;
    padding: 10px;
    border-top: 1px solid #e9ecef;
    z-index: 1000;
  }
  .main-menu ul.active {
    display: flex;
  }
  .site-header h1,
  .site-header h2 {
    margin-top: 20px;
  }
  .site-footer {
    flex-direction: column;
  }
  .footer-contact,
  .footer-image {
    text-align: center;
    width: 100%;
    margin-bottom: 20px;
  }
}