@import url('https://fonts.googleapis.com/css2?family=ZCOOL+XiaoWei&display=swap');

* {
    box-sizing: border-box;
}

/* 声明全局变量 */
:root {
    --theme-color-dark: #22254b;
    --theme-color-light: #373b69;
    --header-height: 100px;
}

body {
    font-family: 'ZCOOL XiaoWei', sans-serif;
    background-color: var(--theme-color-dark);
    margin: 0;

    /* 子元素按列排 */
    display: flex;
    flex-direction: column;
}

#title {
    color: white;
    text-align: center;
    line-height: var(--header-height);
    margin: 0;
}

.header {
    background-color: var(--theme-color-light);
    height: var(--header-height);
    box-shadow: 0 2px 6px 0 rgba(0,0,0,0.3);
}

.container {
    /* 子元素按行排 */
    display: flex;
    flex-wrap: wrap;        /* 排不下自动换行 */
    flex-direction: row;

    color: white;
    padding: 50px;
    width: 100%;
}

.card {
    /* 子元素按列排，水平居中 */
    display: flex;
    flex-direction: column;
    align-items: center;

    position: relative; /* 提供给intro定位 */

    width: 300px;
    background-color: var(--theme-color-light);
    box-shadow: 0 0 6px 0 rgba(0,0,0,0.3);
    border-radius: 10px;
    margin: 0 20px 40px;
    overflow: hidden;
}

.card img {
    height: 450px;
    min-width: 100%;
    border-radius: 10px 10px 0 0;
}

.info {
    /* 子元素按行排，垂直居中 */
    display: flex;
    flex-direction: row;
    align-items: center;

    position: relative; /* 提供给score定位 */
    padding: 0 70px;
    width: 100%;
    height: 100%;
}

.info .name {
    width: 100%;
    text-align: center;
}

.info .score {
    /* 基于info容器定位 */
    position: absolute;
    right: 20px;

    color: #f39c12;
    text-align: center;
    background-color: var(--theme-color-dark);
    height: 30px;
    line-height: 30px;
    width: 40px;
    border-radius: 5px;
}

.intro {
    /* 基于card容器定位 */
    position: absolute;
    bottom: 0;

    color: black;
    padding: 20px;
    z-index: 1;     /* 显示在其他元素上方 */
    background-color: rgb(236, 236, 236);
    box-shadow: 0 0 6px 0 rgba(0,0,0,0.3);

    transform: translateY(100%);    /* 默认隐藏 */
    transition: transform 0.5s ease-in-out;
}

.intro.hover {
    transform: translateY(0%);
    transition: transform 0.5s ease-in-out;
}