*{
    font-family: Microsoft JhengHei;
}

body,html{
    min-width: 1300px;
    min-height: 630px;
    margin: 0;
    background: linear-gradient(150deg,#5cacee 20%,#104ebb 90%);
    height: 100%;
}

main{
    height: 100%;
    width: 90%;
    margin: 0 auto;
}

.legend{
    margin: -2.5em 0 0.2em;
    background: #ff6a6a;
    width: 5em;
    height: 5em;
    box-sizing: border-box;
    text-align: center;
    line-height: 5em;
    padding: 0 0.5em;
    border-radius: 50%;
    box-shadow: 1px 1px 1px gray;

}

.fieldset-container{
    display: flex;
}

fieldset{
    flex: 1;
    /*display: inline-block;*/
    box-sizing: border-box;
    box-shadow: 1px 1px 3px gray;
    /*width: 47.5%;*/
    height: 7em;
    padding: 10px;
    margin:2.5em 0 2em;
    border: 0;
    background:white;
    text-align: center;
    border-radius: 5px;
}

#form-gra-time label{
    color: white;
    font-size:16px ;
    display: inline-block;
    height: 2em;
    width: 5em;
    padding: 1em auto;
    text-align: center;
    line-height: 2em;
    box-sizing: border-box;
    background: linear-gradient(to bottom,#98fb98 10%,#00ff7f 90%);
    font-family: "Microsoft Yahei";
    border-radius: 5px;
    margin: 0.5em 0.5em 0;
    box-shadow: 0 0 5px gray;
    transition: all 0.35s;
    cursor: pointer;
}


#form-gra-time{
    margin-right: 4.6%;
 }

input[type="radio"]{
    position: absolute;
    clip: rect(0,0,0,0);
}

#city-select{
    font-family: "Microsoft Yahei";
    position: relative;
    color: white;
    font-size: 20px;
    box-sizing: border-box;
    height: 2em;
    padding:0 1.5em;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: linear-gradient(to top,#98fb98 10%,#00ff7f 90%);
    border: 0;
    background-clip: padding-box;
    box-shadow: 1px 1px 5px gray;
    transition: all 0.35s;
    cursor: pointer;
}

#city-select option{
    display: block;
    color: #757575;
}

#city-select:hover,#city-select:active{
    background: linear-gradient(to bottom,#5cacee 10%,#aeeeee 90%);
    box-shadow: 1px 1px 10px gray;
}

#form-gra-time input[type="radio"]:hover+label{
    background: linear-gradient(to top,#5cacee 10%,#aeeeee 90%);
    box-shadow: 1px 1px 10px gray;
}


#form-gra-time input[type="radio"]:active+label,
#form-gra-time input[type="radio"]:checked+label{
    background: linear-gradient(to top,#4f94cd 10%,#aeeeee 90%);
    box-shadow:inset 1px 1px 10px gray;
}

.aqi-chart-wrap{
    min-width: 90%;
    box-sizing: border-box;
    height: calc(100% - 14em);
    box-shadow: 1px 1px 3px gray;
    background: white;
    border-radius: 5px;
    padding: 2%;
}

.aqi-chart-figure{
    /*overflow: auto;*/
    min-width:96%;
    position: relative;
    width: 100%;
    height: 93%;
    box-shadow: inset 0 0 10px gray;
    border-radius: 5px;
    text-align: center;
    background: #fffff0;
}

.boxWrap{
    position: absolute;
    display: block;
    white-space: nowrap;  /*防止柱形图换行*/
    width: 100%;
    bottom: 0;
}

.boxWrap div{
    position: relative;
    display: inline-block;
    box-shadow: 0 0 3px #8B8B8B;
    transform: scale(1,0);
    transform-origin: bottom;
    transition: transform 0.45s ease-out;
}

.boxWrap div div{
    height: 100%;
    width: 100%;
}

.boxWrap div div:hover + span{
    display: block;
}

.boxWrap div span{
    display: block;
    color: black;
    position: absolute;
    right: 0;
    padding: 5px;
    background: springgreen;
    box-shadow: 0 0 8px gray;
    opacity: 0.6;
    border-radius: 5px;
    top: -3em;
    transform: scale(0);
    transition: transform 0.15s ease-out;
}

.boxWrap div span::before{
    position: absolute;
    display: block;
    content: "";
    width: 0;
    height: 0;
    right: 1%;
    bottom: -9px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 10px solid springgreen;
}

.title{
    text-align: center;
    width: 100%;
    position:relative;
    top:0.8em;
    font-size: 18px;
}