body {
  font-family: "Helvetica Neue", "PingFang SC", sans-serif;
  margin: 0;
  padding: 0;
  background: #fdfdfd;
  color: #333;
  line-height: 1.6;
}

header, footer {
  text-align: center;
  padding: 20px;
  background: #f6f6f6;
}

header h1 {
  font-size: 2rem;
  margin: 0.5em 0 0;
}

header p {
  margin: 0.2em 0 1em;
  color: #666;
}

main {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}

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

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.work-item {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.work-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.work-item img {
  width: 100%;
  height: auto;
  display: block;
}

.work-item p {
  padding: 10px;
  font-size: 1rem;
  text-align: center;
}

.back-btn {
  display: inline-block;
  margin: 10px;
  text-decoration: none;
  color: #0077ff;
  font-weight: 500;
}

footer {
  font-size: 0.9em;
  color: #777;
  border-top: 1px solid #eee;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 1.6rem;
  }

  .work-item p {
    font-size: 0.95rem;
  }

  main {
    padding: 15px;
  }
}

@media (max-width: 480px) {
  header p {
    font-size: 0.9rem;
  }

  .work-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .work-item {
    border-radius: 8px;
  }

  footer {
    font-size: 0.8rem;
    padding: 15px;
  }
}