.title {
    text-align: center;
}

.title a {
    color: gold;
}

a {
    text-decoration: none;
}

html,
body {
    height: 100vh;
    /* 很重要 */
}

#wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin: 0 auto;
    border-radius: 9px;
}

.post-detail {
    font-size: 12px;
    align-self: flex-start;
    margin-top: .5rem;
    margin-bottom: .2rem;
    color: #939393;
}

.post-detail:hover {
    color: #eb7350;
}

.select-page {
    font-size: 14px;
    color: #333;
    align-self: center;
}

.card {
    background-color: rgba(220, 240, 234, .5);
    padding: .5rem;
    margin-bottom: 2rem;
    border-radius: 6px;
}

.card p {
    font-size: medium;
    letter-spacing: 2px;
}

#nav {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 5;
    margin-right: 1rem;
    padding: .5rem;
}

#nav > a {
    display: block;
    padding: .5rem 0;
    color: #333;
    cursor: pointer;
    width: 9rem;
    margin-right: .5rem;
    justify-content: center;
    text-align: center;
}

#nav > a:hover {
    color: #eb7350;
}

#nav-head {
    display: flex;
    justify-content: space-around;
    margin: .5rem;

}

.arrow {
    display: inline;
    width: 25px;
    height: 30px;
    line-height: 30px;
    letter-spacing: -2px;
    background-image: linear-gradient(135deg, #edcd50 40%, #a6da46);
    border-radius: 5px;
    font-weight: bold;
    color: white;
    cursor: pointer;
    margin: 2px;
    padding-right: 2px;
    text-align: center;
}

.arrow:active {
    box-shadow: 2px 2px 5px #f7ab82;
}

h6 {
    text-align: left;
}

img {
    max-width: 250px;
    max-height: 350px;
    border-radius: 9px;
}

p {
    color: #333;
    line-height: 24px;
    font-size: 14px;
    margin: 0 0 .5rem 0;
    padding: 0;
}

.active {
    background-color: azure;
    color: #eb7350;
}

@media only screen and (min-width: 578px) {
    #wrapper {
        width: 40%;

    }

    #page-bar {
        display: flex;
        flex-direction: column;
        position: fixed;
        right: 1px;
        top: 10px;
        background-color: beige;
        margin: 1rem 1rem;
        border-radius: 9px;
    }
}

@media only screen and (max-width: 414px) {
    img {
        max-width: 100%;
    }

    #page-bar a {
        display: none;
    }
}

/*博文详情上下翻页*/
.post-prev {
    position: absolute;
    bottom: -2rem;
    left: 6rem;
}

.post-next {
    position: absolute;
    bottom: -2rem;
    right: 6rem;
}