@charset "UTF-8";
/* 手機版與共用樣式 */
* {
  margin: 0;
  padding: 0;
}

body {
  width: 100%; 
  max-width: 1140px;		
  margin: 0 auto;  
}

header, nav, main, footer {
  display: block; 
  width: 96%;  
  margin: 0 auto;  
}

header {
  color: white;
  background: seagreen;
}

nav > ul {
  display: flex;
  margin-top: 20px;
}

nav > ul > li {  
  width: 75px;  
  margin-right: 10px;
  padding: 10px;  
  list-style: none;
  border: 1px solid silver;
  border-radius: 5px;
}

nav > ul > li > a {
  display: block;
  text-align: center;  
  text-decoration: none; 
  color: black;  
}	



#title1 {
  margin: 10px;
  padding: 10px;
}

#title2 {
  text-align: center;
  margin: 50px 0 20px;  
}

.gridcontainer {
  display: grid; 
  gap: 20px;
  grid-template-columns: 1fr;
}  

.img-photo {  
  max-width: 100%;
  height: auto;
}

.a-detail {  
  text-decoration: none; 
  color: #0066ff;
  font-weight: bold;
}

.a-about {
  text-decoration: none; 
  color: #000000;
  padding: 20px 0;
}
	 
.a-back {  
  float: right;
  text-decoration: none; 
  color: #0066ff; 
  font-family: "Arial";
}	

/* 平板電腦版樣式 (501px ~ 768px) */
@media screen and (min-width: 501px) {
  .gridcontainer {
    grid-template-columns: 1fr 1fr;
  }	  
} 

/* PC版樣式 (≧769px) */
@media screen and (min-width: 769px) {
  .gridcontainer {
    grid-template-columns: 1fr 1fr 1fr;
  }	
}