body {
  font-family: "Helvetica Neue", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 14px;
  color: #333;
  background-color: #f9f9f9;
  margin: 0;
  padding: 40px 20px;
  line-height: 1.8;
}

.content-wrapper {
  max-width: 800px;
  margin: auto;
  background: #fff;
  padding: 40px;
  box-shadow: 0 0 8px rgba(0,0,0,0.05);
}

h1, h2 {
  color: #222;
  font-weight: normal;
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.3em;
  margin-top: 2em;
}

ul {
  padding-left: 1.2em;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1em;
}

th, td {
  border: 1px solid #ddd;
  padding: 8px 12px;
  text-align: left;
}

p {
  margin: 1em 0;
}