.content{
    display: flex;
}
@media(max-width:991px){
    .content{
        flex-direction: column;
    }
}
.content aside{
    padding-right: 55px;
}
@media(max-width:991px){
    .content aside{
        padding-right: 0;
    }
}
.content aside ul{
    list-style: none;
    padding: 0;
    margin: 0;
}
@media(max-width:991px){
    .content aside ul{
        display: grid;
        grid-template-columns: repeat(3,1fr);
        column-gap: 10px;
        row-gap: 10px;
        margin-bottom: 40px;
    }
}
@media(max-width:767px){
    .content aside ul{
        grid-template-columns: repeat(2,1fr);
    }
}
.content aside ul li{
    position: relative;
    background-color: attr(data-color);
    margin-bottom: 15px;
    transition: .3s;
}
@media(max-width:991px){
    .content aside ul li{
        margin-bottom: 0;
    }
}
.content aside ul li.current::before{
    content: '';
    position: absolute;
    width: 15px;
    height: 100%;
    right: -20px;
    bottom: 0;
}
@media(max-width:991px){
    .content aside ul li.current::before{
        right: auto;
        left: 0;
        bottom: -5px;
        width: 100%;
        height: 3px;
    }
}
.content aside ul li a{
    width: 255px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #FFF;
    padding: 15px;
    text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.5);
    font-size: var(--font-h7);
}
@media(max-width:991px){
    .content aside ul li a{
        flex-direction: row;
        width: 100%;
        font-size: var(--font-h7);
        padding: 10px;
    }
}
.content aside ul li a i{
    text-shadow: none;
    position: absolute;
    z-index: 0;
    opacity: .05;
    font-size: 8rem;
    top: 1.2rem;
    left: 0rem;
}
@media(max-width:991px){
    .content aside ul li a i{
        display: none;
    }
}
.content aside ul li a header{
    font-size: var(--font-h5);
    font-weight: bold;
}
@media(max-width:991px){
    .content aside ul li a header{
        margin-right: 20px;
        font-size: var(--font-h6);

    }
}
@media(max-width:767px){
    .content aside ul li a header{
        margin-right: 15px;
        font-size: var(--font-h6);

    }
}
@media(max-width:575px){
    .content aside ul li a header{
        margin-right: 6px;
    }
}
.content aside ul li a hr{
    background-color: transparent;
    border-top: 1px solid#FFF;
    margin: 10px;
    width: 100%;
}
@media(max-width:991px){
    .content aside ul li a hr{
        display: none;
    }
}
.content aside ul li a :last-child{
    font-size: var(--font-h4);
    font-weight: bold;
}
@media(max-width:991px){
    .content aside ul li a :last-child{
        font-size: var(--font-h8);
    }
    .content aside ul li a span:nth-child(4){
        display: none;
    }
}
.content aside ul li:nth-child(1){
    background-color: var(--member-red);
}
.content aside ul li:nth-child(1)::before{
    background-color: var(--member-red);
}
.content aside ul li:nth-child(1):hover{
    background-color: var(--member-red-hover);
}
.content aside ul li:nth-child(1) i{
    left: -1rem;
}

.content aside ul li:nth-child(2){
    background-color: var(--member-orange);
}
.content aside ul li:nth-child(2)::before{
    background-color: var(--member-orange);
}
.content aside ul li:nth-child(2):hover{
    background-color: var(--member-orange-hover);
}

.content aside ul li:nth-child(3){
    background-color: var(--member-purple);
}
.content aside ul li:nth-child(3)::before{
    background-color: var(--member-purple);
}
.content aside ul li:nth-child(3):hover{
    background-color: var(--member-purple-hover);
}
.content aside ul li:nth-child(3) i{
    left: -1.1rem;
}

.content aside ul li:nth-child(4){
    background-color: var(--member-blue);
}
.content aside ul li:nth-child(4)::before{
    background-color: var(--member-blue);
}
.content aside ul li:nth-child(4):hover{
    background-color: var(--member-blue-hover);
}
.content aside ul li:nth-child(4) i{
    font-size: 8rem;
    top: 2rem;
    left: 0.7rem;
}

.content aside ul li:nth-child(5){
    background-color: var(--member-green);
}
.content aside ul li:nth-child(5)::before{
    background-color: var(--member-green);
}
.content aside ul li:nth-child(5):hover{
    background-color: var(--member-green-hover);
}
.content aside ul li:nth-child(5) i{
    font-size: 6rem;
    top: 2rem;
    left: -1rem;
}


/* 右側 */
.content section{
    min-width: 1px;
    flex: 1;
}
.content section header{
    padding-bottom: 20px;
    margin-bottom: 30px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--input-boder);
}
@media(max-width:767px){
    .content section header{
        flex-direction: column;
        border-bottom: 0px;
        padding-bottom: 25px;
        margin-bottom: 0;
    }
}
.content section header h3{
    font-size: var(--font-h4);
    letter-spacing: 1px;
    font-weight: bold;
    margin-bottom: 10px;
}
@media(max-width:767px){
    .content section header h3{
        border-bottom: 1px solid var(--input-boder);
        padding-bottom: 10px;
    }
}
.content section header h3::before{
    content: '●';
    margin-right: 10px;
}

.content section header ul{
    padding: 0; 
    margin: 0;
    list-style: none;
    display: flex;
}
.content section header ul li a ,.content section header ul li button{
    width: 120px;
    height: 40px;
    border:1px solid var(--label-bg-yellow);
    border-radius: 1px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: var(--font-h5);
    color: var(--label-bg-yellow);
    margin-left: 10px;
    transition: .3s;
    background-color: transparent;
}
@media(max-width:767px){
    .content section header ul li a ,.content section header ul li button{
        width: 90px;
        margin-left: 0;
        margin-right: 10px;
        font-size: var(--font-h6);
    }
}
@media(max-width:575px){
    .content section header ul li a ,.content section header ul li button{
        margin-right: 5px;
        font-size: var(--font-h7);
    }
}


.content section header ul li.current a,
.content section header ul li:hover a,
.content section header ul li.current button,
.content section header ul li:hover button
{
    background-color: var(--btn-bg-yellow);
    border:1px solid var(--btn-bg-yellow);
    color: var(--black);
}

.content section header ul li.current:hover a,
.content section header ul li.current:hover button
{
    background-color: var(--btn-bg-yellow-hover);
    border:1px solid var(--btn-bg-yellow-hover);
}

.title-red{
    color: var(--member-red);    
}
.title-orange{
    color: var(--member-orange);
}
.title-purple{
    color: var(--member-purple);
}
.title-blue{
    color: var(--member-blue);
}
.title-green{
    color: var(--member-green);
}

.empty{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 50px 0 200px;
}
.empty img{
    width: 400px;
    height: 260px;
    margin-bottom: 25px;
}
.empty span{
    font-size: var(--font-h4);
    color: var(--title-font-blue);
}
@media(max-width:575px){
    .empty{
        padding: 20px 0 100px;
    }
    .empty img{
        width: 100%;
    }
    .empty span{
        font-size: var(--font-h5);
        color: var(--title-font-blue);
    }
}