body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "メイリオ", sans-serif;
  background-color: #f9f9f9;
  margin: 0;
  padding: 40px 0;
  color: #333;
}

.container {
  max-width: 750px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  overflow: hidden;
}

h1 {
  background: #f3f3f3;
  padding: 20px;
  font-size: 1.4rem;
  border-bottom: 1px solid #ddd;
  text-align: center;
  margin: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 16px 20px;
  vertical-align: top;
  border-bottom: 1px solid #eee;
}

th {
  width: 30%;
  background-color: #fafafa;
  font-weight: bold;
  text-align: left;
  color: #444;
}

td a {
  color: #0078c2;
  text-decoration: none;
}

td a:hover {
  text-decoration: underline;
}

/* Mobile styles for viewport protection */
@media screen and (max-width: 600px) {
  .container {
    padding: 0 15px;
    box-shadow: none;
    border-radius: 0;
  }

  table, tbody, tr, th, td {
    display: block;
    width: 100%;
  }
  th {
    background-color: transparent;
    font-size: 0.95rem;
    border-bottom: none;
    padding: 8px 0 2px;
  }
  td {
    padding: 0 0 12px;
    font-size: 0.95rem;
  }
}