body {
  margin: 16px;
  line-height: 1.8;           
  color: #2a2a2a;
  font-family: "Yu Gothic Medium","Hiragino Kaku Gothic ProN",Meiryo,sans-serif; 
  background-color: #ffffff;
}

body.page2{
  margin: 16px;
  line-height: 1.8;           
  color: #2a2a2a;
  font-family: "Yu Gothic Medium","Hiragino Kaku Gothic ProN",Meiryo,sans-serif; 
  background-color: #ffe6f0;
}

#container { 
  max-width: 960px; 
  margin: 0 auto; 
}

header { 
  padding: 16px 0; 
  border-bottom: 3px solid #26453f;          
  background-color: #f7f4ef;                
  margin-bottom: 24px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}
h1 { 
  text-align: center; 
  margin-bottom: 12px; 
  font-size: 1.9em;
  letter-spacing: 2px;
  color: #213a34;                          
  font-family: "Yu Mincho","Hiragino Mincho ProN",serif;
}

nav ul { 
  list-style: none; 
  padding: 0; 
  margin: 8px 0; 
  text-align: center;
}
nav li { 
  display: inline-block; 
  margin: 0 8px; 
}
nav a { 
  text-decoration: none; 
  padding: 6px 12px; 
  border: 1px solid #26453f;                 
  border-radius: 3px;
  background-color: transparent;
  color: #26453f;
  line-height: 2.5;
}
nav a:hover { 
  background-color: #c73e1d;               
  border-color: #c73e1d;
  color: #fff; 
}

article { 
  margin: 24px 0; 
  padding: 16px; 
  border: 1px solid #d9cfc2;                 
  border-radius: 4px;
  background: #fff; 
  box-shadow: 2px 2px 6px rgba(0,0,0,0.06);
}

/* h2：朱の見出し罫で和のメリハリ */
article h2 { 
  margin-bottom: 12px; 
  padding: 6px 10px; 
  background-color: transparent;
  color: #213a34;
  font-size: 1.25em;
  font-family: "Yu Mincho","Hiragino Mincho ProN",serif;
  border-left: 6px solid #c73e1d;            
  border-radius: 2px;
}

dl { margin: 12px 0; }
dt { 
  font-weight: bold; 
  margin-top: 12px; 
  color: #1f2d3d;                            
  letter-spacing: 0.5px;
}
dd { 
  margin-left: 16px; 
  color: #444; 
  border-left: 3px solid #e6dac3;            
  padding-left: 10px;
}

footer { 
  margin-top: 32px; 
  padding: 12px 0; 
  border-top: 2px solid #d9cfc2; 
  text-align: center;
  background-color: #f7f4ef;
}
footer small { 
  display: block; 
  margin-top: 8px; 
  color: #666; 
}