:root{
  --primary-color: #c72727;
  --secondary-color: #f99500;
  --light-color: #f1f1f1;
  --dark-color: #333;
  --max-width: 1100px;
}
.category{
  --univ-color: #f99500;
  --daily-color: #a66bbe;
  --publication-color: #009cff;
}
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  font-family: 'Lato', sans-serif;
  line-height: 1.5;
  background: var(--light-color);
}
a{
  color: var(--dark-color);
  text-decoration: none;
}
ul{
  list-style: none;
}
p{
  margin: 0.5rem 0;
}
img{
  width: 100%;
}
h1,h2,h3,h4,h5,h6{
  font-family: 'Staatliches', cursive;
  margin-bottom: .75rem;
  line-height: 1.3;
}

/* Utilities */
.container{
  max-width: var(--max-width);
  margin: auto;
  padding: 0 2rem;
  overflow: hidden;
}
.category{
  display: inline-block;
  color: #fff;
  font-size: 0.55rem;
  text-transform: uppercase;
  padding: 0.4rem 0.6rem;
  border-radius: 15px;
  margin-bottom: 0.5rem;
}
.category-univ{
  background: var(--univ-color);
}
.category-daily{
  background: var(--daily-color);
}
.category-publication{
  background: var(--publication-color);
}
.btn{
  display: inline-block;
  border: none;
  background: var(--dark-color);
  color: #fff;
  padding: 0.5rem 1.5rem;
}
.btn-light{
  background: var(--light-color);
  color: var(--dark-color);
}
.btn-primary{
  background: var(--primary-color);
}
.btn-secondary{
  background: var(--secondary-color);
}
.btn:hover{
  opacity: 0.9;
}
.btn-block{
  display: block;
  width: 100%;
  text-align: center;
}
.card{
  background: #fff;
  padding: 1rem;
}
.bg-dark{
  background: var(--dark-color);
  color: #fff;
}
.bg-primary{
  background: var(--primary-color);
  color: #fff;
}
.bg-secondary{
  background: var(--secondary-color);
  color: #fff;
}
.bg-dark h1,
.bg-dark h2,
.bg-dark h3,
.bg-dark a,
.bg-primary h1,
.bg-primary h2,
.bg-primary h3,
.bg-primary a,
.bg-secondary h1,
.bg-secondary h2,
.bg-secondary h3
.bg-secondary a{
  color: #fff;
}
.py-1{
  padding: 1.5rem 0;
}
.py-2{
  padding: 2rem 0;
}
.py-3{
  padding: 3rem 0;
}
.p-1{
  padding: 1.5rem;
}
.p-2{
  padding: 2rem;
}
.p-3{
  padding: 3rem;
}

.list li{
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
  border-bottom: #555 dotted 1px;
  width: 90%;
}
.list li a:hover{
  color: var(--primary-color) !important;
}
.page-container{
  display: grid;
  grid-template-columns: 5fr 2fr;
  margin: 2rem 0;
  grid-gap: 1.5rem;
}
.page-container > *:first-child{
  grid-row: 1 / span 3;
}
.l-heading{
  font-size: 2rem;
}

/* Navigation Bar */
#main-nav{
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 2;
}
#main-nav .container{
  display: grid;
  grid-template-columns: 6fr 3fr 2fr;
  padding: 1rem;
  align-items: center;
}
#main-nav .logo{
  width: 180px;
}
#main-nav ul{
  justify-self: end;
  display: flex;
}
#main-nav ul li a{
  padding: 1.5rem;
  font-weight: bold;
}
#main-nav ul li a.current{
  border-bottom: 4px solid var(--primary-color);
}
#main-nav ul li a:hover{
  background: var(--light-color);
  color: var(--dark-color);
}
#main-nav .social{
  justify-self: center;
}
#main-nav .social i{
  margin-right: 0.5rem;
}

/* Showcase */
#showcase{
  color: #fff;
  background: rgb(179, 176, 176);
  padding: 2rem;
  position: relative;
}
#showcase:before{
  content: '';
  background: transparent;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 1;
}

#showcase .heatmapcontainer{
  background: transparent;
  justify-content: center;
  align-items: center;
}

#showcase .showcase-container{
  display: grid;
  grid-template-columns: repeat(2,1fr);
  justify-content: center;
  align-items: center;
  height: 50vh;
}
#showcase .showcase-content{
  z-index: 1;
}
#showcase .showcase-content p {
  margin-bottom: 1rem;
}

/* Articles */
#home-articles .articles-container{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 1rem;
}
#home-articles .articles-container{
  display: grid;
  grid-template-columns: 	repeat(3, 1fr);
  grid-gap: 1rem;
  grid-column: span 3;
  align-items: center;
}
#home-articles .articles-container{
  grid-column: span 3;
}
#article .meta{
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #eee;
  padding: 0.5rem; 
}
#article .meta .category{
  margin-top: 0.4rem;
}

/* Footer */
#main-footer{
  background: var(--dark-color);
  color: #fff;
}
#main-footer img{
  width: 150px;
}
#main-footer a{
  color: #fff;
}
#main-footer .footer-container{
	display: grid;
	/*grid-template-columns: repeat(4, 1fr);*/
	grid-template-columns: 0.8fr 0.5fr 1fr 1fr;
	grid-gap: 10px; /*1rem*/
}
#main-footer .footer-container > *:last-child{
  background: #444;
  grid-column: 1 / span 4;
  padding: 0.5rem;
  text-align: center;
  font-size: 0.8rem;
}
#main-footer .footer-container input[type='email']{
  width: 90%;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
}
#main-footer .footer-container input[type='submit']{
  width: 90%;
}

.footer-container .contact-container {
	display: grid;
	grid-template-columns: 1fr 5fr; /* 两列，每列占用可用空间的等份 */
	gap: 10px; /* 行列间隙 */
  }
  
.footer-container .contact-item {
	background-color: transparent; /* 背景颜色 */
	border: none; /* 边框 */
	text-align: left; /* 文本居中 */
  }