*{margin: 0;padding: 0;}
body{font-family:'微软雅黑';font-size:16px;}
.header{position:fixed;width:100%;z-index:999
}
.header-container{max-width:640px;background:#0000ff;padding:6px 0;margin:0 auto;}
.header img{height:41px;margin-left:6px;}
img {
	display: block;
	max-width: 100%;
}
.container{margin:0 auto;max-width:640px;}

.title0{display:flex;align-items:center;padding:0 12px;margin-top:16px;}
.title0 i{width:5px;height:21px;background:#0000ff;border-radius:5px;}
.title0 span{font-weight:bold;margin-left:10px;font-size:18px;}

.title1{display:flex;align-items:center;padding:0 12px 0 24px;margin-top:12px;}
.title1 i{width:5px;height:5px;background:#0000ff;border-radius:50%;}
.title1 span{font-weight:bold;margin-left:10px;font-size:16px;}

.category-item{display:flex;flex-wrap:wrap;margin:0 0 0 36px;}
.category-item a{margin:12px 12px 0 0}

.margin-top0{margin-top:26px}

.category-title{padding:8px;background:#d9faed;color:#000;font-weight:bold;font-size:16px;}
.category-title a{color:#000}
.qt-title{margin:8px;padding:6px 18px;background:#0000ff;border-radius:8px;display:inline-block;
          color:#fff;
}
.exam-title{font-size:18px;line-height:1.8;margin:8px 12px 0 12px;font-weight:bold}
.exam-answer{margin:8px 12px 0 12px}
.exam-answer label{display:block;margin:10px 6px;}

.answer-info{margin:22px 12px 0 12px}



.qt-link{display:flex;}
.qt-link a{margin:16px 0 6px 12px;padding:6px 18px;background:#666;border-radius:8px;display:inline-block;
          color:#fff;text-decoration:none}
.qt-link a.on{background:#0000ff}

.exam-link-container{position:fixed;bottom:0;width:100%;}
.exam-link{display:flex;max-width:640px;margin:0 auto;justify-content:center;align-items:center}
.exam-link-item{width:50%;align-self:center;text-align:center;border-top:1px solid #666;box-sizing:border-box;
                padding:6px 0;
}
.exam-link-item:first-child{border-right:1px solid #666}