.title-section {
    position: relative;
    height: 520px;
    padding-top: 100px;
    background-color: #353744;
    background-size: cover;
}

.title-section::after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    content: '';
    background-color: rgba(0, 0, 0, 0.75);
    z-index: 0;
}

.title-content {
    position: relative;
    margin: 0 auto;
    width: 100%;
    max-width: 1200px;
    height: 100%;
    background-position: right bottom;
    background-repeat: no-repeat;
    background-size: 400px auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    color: #fff;
    z-index: 1;
}

.title-content h1 {
    line-height: 1;
    font-size: 40px;
    font-weight: 200;
}

.title-content>.desc {
    margin-top: 20px;
}

.title-content p {
    font-size: 16px;
    max-width: 600px;
    z-index: 1;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 200;
    line-height: 2;
}

.details-section {
    padding: 60px 0;
}

.details-section h2 {
    width: 100%;
    text-align: center;
    margin-bottom: 40px;
}

.details-item {
    margin-top: 20px;
}

.details-item h5 {
    padding-top: 23px;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
}

.details-item p {
    padding-top: 7px;
    font-size: 14px;
    color: #aaa;
}

.details-item img {
    display: block;
    margin: 0 auto;
    width: 50%;
    text-align: center;
}

.special-section {
    width: 100%;
    padding: 40px 0;
}

.special-item {
    width: 100%;
    height: 338px;
    background-position-y: center;
    background-size: contain;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
}

.special-item:nth-of-type(even) {
    background-position-x: left;
    background-color: #fff;
}

.special-item:nth-of-type(odd) {
    background-position-x: right;
    background-color: rgb(247, 250, 255);
}

.special-text {
    margin: 0 auto;
    width: 100%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
}

.special-item:nth-of-type(even)>.special-text {
    align-items: flex-end;
}

.special-item:nth-of-type(odd)>.special-text {
    align-items: flex-start;
}

.special-text h3 {
    line-height: 1;
    color: #1F3349;
    font-size: 20px;
    font-weight: 400;
}

.special-text p {
    margin-top: 30px;
    max-width: 420px;
    color: rgba(31, 51, 73, .7);
    font-size: 14px;
}

.params-section {
    padding: 60px 0;
    background-color: #fafafa;
}

.params-section h2 {
    width: 100%;
    text-align: center;
    margin-bottom: 40px;
}

.param-line {
    padding: 10px 0;
    display: flex;
    align-items: center;
    border-bottom: solid 1px #ddd;
}

.param-line>.key {
    flex: 1;
    text-align: center;
    border-right: solid 1px #ddd;
    color: #888;
    font-size: 16px;
    font-weight: 500;
}

.param-line>.val {
    flex: 1;
    text-align: center;
}

.details-section {
    padding: 60px 0;
    background-repeat: no-repeat;
    background-size: cover;
}

.details-section h2 {
    width: 100%;
    text-align: center;
    margin-bottom: 40px;
}

.sol-list {
    width: 100%;
    height: 420px;
}

.sol-item {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.sol-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.sol-item>img {
    width: 100%;
    height: 200px;
    transition: 500ms;
}

.sol-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 500ms;
}

.sol-content>.iconfont {
    display: block;
    font-size: 3em;
}

.sol-item:hover>img {
    transform: scale(1.2);
}

.sol-item:hover>.sol-content {
    color: #3cb2b3;
}

.swiper-button-next,
.swiper-button-prev {
    color: #aaa;
    background-color: rgba(0, 0, 0, 0.8);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: 0 0 2px 1px #aaa;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 16px;
    display: none;
}

.swiper-button-next span,
.swiper-button-prev span {
    font-size: 16px;
}

.swiper-button-next,
.swiper-button-prev {
    margin-top: -20px !important;
}