a {
    text-decoration: none;
    color: inherit;
}
.head {
    width: 1200px;
    margin: 20px auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.head-left {
    display: flex;
    align-items: center;
}
.logo {
    width: 80px;
    height: 80px;
}
.logo img {
    width: 100%;
    height: 100%;
}
.head-title {
    margin-left: 20px;
    font-size: 32px;
    font-weight: bold;
}
.head-right {
    display: flex;
    align-items: center;
    font-size: 16px;
}
.head-right-btn {
    margin-left: 20px;
    display: flex;
    align-items: center;
    height: 25px;
}
.head-right-btn img {
    margin-right: 5px;
    height: 100%;
}
.download-button {
    width: 140px;
    height: 40px;
    /* 渐变左到右 */
    background: linear-gradient(to right, #40cdff, #6c8fff);
    border-radius: 10px;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
.dropdown {
    width: 12px;
    height: 12px;
    background: url("../assets/dropdown.png") no-repeat center center;
    background-size: cover;
    margin-left: 5px;
}

.dropdown-box {
    position: absolute;
    top: 80px;
    right: 280px;
    /* width: 200px; */
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 20px;
    z-index: 999;
    display: none;
}
.dropdown-box-active {
    display: block;
}
.dropdown-line {
    width: 100%;
    height: 1px;
    background: #e5e5e5;
    margin: 10px 0;
}
.dropdown-item {
    display: flex;
    cursor: pointer;
    align-items: center;
}
.dropdown-item img {
    margin-right: 10px;
}
.line {
    width: 100%;
    height: 1px;
    background: #e5e5e5;
}
.carousel-content {
    display: flex;
    justify-content: space-between;
    width: 1350px;
    margin: 0 auto;
    align-items: center;
}
.carousel-box {
    width: 1200px;
    margin: 20px auto;
    overflow: hidden;
}
.carousel {
    width: 1600px;
    display: flex;
    justify-content: space-between;
    flex-shrink: 0;
    position: relative;
    left: 0;
}
.carousel-1 {
    left: -395px;
    transition: left 1s ease;
}
.carousel-item {
    width: 375px;
    height: 812px;
    flex-shrink: 0;
}
.carousel-item img {
    width: 100%;
    height: 100%;
}
.arrow-left {
    width: 60px;
    height: 60px;
    background: url("../assets/arrow-left.png") no-repeat center center;
    flex-shrink: 0;
    cursor: pointer;
}
.arrow-right {
    width: 60px;
    height: 60px;
    background: url("../assets/arrow-right.png") no-repeat center center;
    flex-shrink: 0;
    cursor: pointer;
}
.desc {
    width: 1200px;
    margin: 20px auto;
    padding-bottom: 50px;
}
.desc-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}
.desc-item {
    margin-bottom: 20px;
    font-size: 16px;
}