*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial;
  background:#f4f6fb;
  color:#333;
}
a{text-decoration:none;color:inherit;}
img{width:100%;display:block;}

.header{
  height:48px;
  padding:0 14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:#fff;
  background:linear-gradient(90deg,#1e2b4d,#243f8f);
}
.header div{font-size: 22px;font-weight: bold}
.menu{font-size:16px!important}

.section{
  background:#fff;
  margin:10px;
  padding:12px;
  border-radius:12px;
}
.section-title{
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
}

.text-small{
  font-size:12px;
  line-height:1.6;
  color:#555;
}

.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}

.card{
  background:#fff;
  border-radius:14px;
  overflow:hidden;
  box-shadow:0 6px 14px rgba(0,0,0,.08);
  font-size:13px;
}

.card-body{
  padding:8px;
  text-align:center;
}

/* news */
.news{
  margin-bottom:12px;
}
.news-title{
  font-size:13px;
  margin:6px 0;
}
.news-time{
  font-size:11px;
  color:#999;
}

/* menu */
.mask{
  position:fixed;inset:0;
  background:rgba(0,0,0,.45);
  opacity:0;pointer-events:none;
  transition:.3s;z-index:99;
}
.side-menu{
  position:fixed;left:0;top:0;
  width:70%;max-width:280px;height:100%;
  background:linear-gradient(180deg,#1e2b4d,#243f8f);
  transform:translateX(-100%);
  transition:.3s;z-index:100;
}
.side-menu.show{transform:translateX(0);}
.mask.show{opacity:1;pointer-events:auto;}
.menu-list{padding:40px 20px;}
.menu-list a{
  display:block;color:#fff;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.15);
  font-size:14px;
}

/* video modal */
.video-mask{
  position:fixed;inset:0;
  background:rgba(0,0,0,.7);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:200;
}
.video-box{
  width:90%;
  background:#000;
}
.video-box video{width:100%}

/* footer */
.footer{
  background:#0f1c3f;
  color:#fff;
  padding:16px 12px;
}
.footer-title{
  font-size:14px;
  margin-bottom:8px;
}
.footer p{
  font-size:12px;
  line-height:1.6;
  opacity:.9;
}
.footer-icons{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-top:12px;
}
.footer-icons .item{
  background:#16275c;
  border-radius:10px;
  padding:10px;
  text-align:center;
}
.footer-icons img{
  width:60px;
  margin:0 auto 6px;
  border-radius:6px;
}
.footer-icons div{
  font-size:11px;
}
/* 开放时间 */
.open-time{
  background:#fff;
  margin:10px;
  padding:12px;
  border-radius:12px;
}

.open-title{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:6px;
}

.open-title .left{
  display:flex;
  align-items:center;
  font-size:14px;
  font-weight:600;
}

.open-title .icon{
  margin-right:6px;
}

.open-title .date{
  font-size:12px;
  color:#666;
}

.open-desc p{
  font-size:12px;
  line-height:1.6;
  color:#333;
}

.open-desc .tip{
  color:#888;
}

/* 三馆入口 */
.museum-links{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:10px;
  margin-top:12px;
}

.museum-links a{
  display:block;
  background:#f3f5fb;
  border-radius:12px;
  padding:5px 4px 0px;
  text-align:center;
}

.museum-links img{
  width:100%;
  border-radius:10px;
  margin-bottom:6px;
}

.museum-links span{
  font-size:12px;
}