/* 公共样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
}

a {
    text-decoration: none;
    color: #000;
}

.shell {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.top {
    width: 100%;
    height: 60px;
    display: flex;
    padding: 0 20px;
    background-color: #f8f8f8;
}

.back {
    display: flex;
    align-items: center;
}

.back a {
    display: flex;
    align-items: center;
}

.back a i {
    font-size: 20px;
}

.back a span {
    margin-left: 5px;
}

.title {
    font-size: 20px;
    /* 居中 */
    flex: 1;
    text-align: center;
}

.bottom {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 轮播图样式 */
.carousel {
    width: 800px;
    height: 400px;
    position: relative;
}

.carousel-box {
    width: 100%;
    height: 100%;
    display: flex;
    position: relative;
}

.carousel-item {
    width: 100%;
    height: 100%;
    display: none;
    position: absolute;
}

.carousel-item img {
    width: 100%;
    height: 100%;
}

.carousel-item:first-child {
    display: block;
}

.btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
}

button {
    width: 50px;
    height: 40px;
    background-color: #dbdbdbc0;
    border: 0;
    cursor: pointer;
}

button:hover {
    background-color: #000;
    color: #fff;
}

.dots {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.dot {
    width: 20px;
    height: 20px;
    background-color: #f8f8f8;
    border: 1px solid #000;
    display: inline-block;
    text-align: center;
    line-height: 20px;
    cursor: pointer;
    margin-right: 10px;
}

.dot:hover {
    background-color: #000;
    color: #fff;
}