.banner-wrap {
    background: url('/frontend/web/image/product/cold-station/banner.png') no-repeat center;
    background-size: cover;
}

.banner-wrap .banner>h1 {
    text-align: left;
    color: rgba(47, 45, 45, 1);
    font-size: 32px;
    line-height: 1.4;
    font-weight: bold;
    margin-bottom: 20px;
}

.banner-wrap .banner>h3 {
    text-align: left;
    color: rgba(137, 142, 156, 1);
    font-size: 16px;
    line-height: 1.8;
}

.tongdian .desc h2 {
    margin-top: 0;
}

.tongdian {
    padding-top: 100px;
    padding-bottom: 60px;
}

.tongdian .desc .num-ac {
    padding-top: 25px;
    padding-right: 20px;
    width: 478px;
    height: 132px;
    background: url('/frontend/web/image/product/qiyebangong/c_bg.png') no-repeat top left;
}

.tongdian .desc .dditem {
    width: 450px;
    box-sizing: border-box;
    margin-bottom: 20px;
    padding: 25px 40px;
    border-radius: 8px;
    cursor: pointer;
    background: #fff;
    transition: all 0.3s;
}

.tongdian .desc .dditem.active {
    box-shadow: 0px 0px 20px 5px rgba(0, 0, 0, 0.08);
}

.tongdian .desc .dditem h4 {
    margin-bottom: 10px;
}

.tongdian .desc .dditem h4 span:first-child {
    display: inline-block;
    margin-right: 16px;
    width: 30px;
    height: 30px;
    text-align: center;
    font-size: 16px;
    line-height: 30px;
    color: #262626;
    border: 1px solid #262626;
    border-radius: 15px;
    float: left;
}

.tongdian .desc .dditem.active h4 span:first-child {
    color: #fff;
    border: none;
    background: url('/frontend/web/image/product/index/num_ac_bg.png') no-repeat top left;
}

.tongdian .desc .dditem.active p {
    display: block;
    margin-left: 46px;
    margin-top: 10px;
}

.tongdian .desc .dditem p {
    display: none;
    font-size: 14px;
    color: #8c8c8c;
    line-height: 1.6;
}

.tongdian .r-img {
    padding-right: 50px;
    float: right;
    margin-top: -30px;
}

.tongdian .desc {
    float: left;
    width: 480px;
}

.tongdian .r-img img {
    max-width: 100%;
}

.part2 {
    padding: 104px 0 88px 0;
}

/* part2 居中布局 */
.part2-centered .wd-container {
    max-width: 1150px;
    margin: 0 auto;
}

.part2-centered h1 {
    text-align: center;
    font-size: 32px;
    color: #262626;
    margin-bottom: 16px;
}

.part2-centered h3 {
    text-align: center;
    font-size: 16px;
    color: #8c8c8c;
    line-height: 1.8;
    margin-bottom: 48px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.part2-diagram-wrap {
    border-radius: 12px;
    padding: 6px;
    margin-bottom: 48px;
    margin: 48px auto;
}

.part2-diagram-wrap video {
    width: 900px;
    height: auto;
    display: block;
    border-radius: 8px;
    margin: auto;
}

.part2-features-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.part2-features-row .feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.part2-features-row .feature-item span {
    font-size: 20px;
    color: #262626;
    margin: 0;
}

.part2 h1 {
    margin-bottom: 48px;
    text-align: center;
    font-size: 40px;
    line-height: 40px;
    color: #262626;
}

.part2 h3 {
    text-align: center;
    font-size: 16px;
    line-height: 24px;
    color: #595959;
    margin-bottom: 48px;
    letter-spacing: 4px;
}

.flex-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 120px;
    margin-top: 60px;
}

.left-img img {
    max-width: 600px;
    border-radius: 10px;
}

.right-features {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.feature-item .icon-diamond {
    width: 24px;
    height: 24px;
    background: url('/frontend/web/image/product/cold-station/icon4.png') no-repeat center;
    background-size: contain;
    margin-right: 16px;
    flex-shrink: 0;
}

.feature-item span {
    font-size: 18px;
}


/* cards part */
.part3-cards {
    padding: 120px 0 40px 0;
}

.part3-cards .dashboard-img {
    text-align: center;
    margin-bottom: 60px;
}

.part3-cards .dashboard-img img {
    max-width: 900px;
}

.part3-cards h1 {
    text-align: center;
    font-size: 40px;
    color: #262626;
    margin-bottom: 80px;
}

.cards-wrapper {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.card {
    padding: 30px;
    width: 300px;
    text-align: center;
    position: relative;
    box-sizing: border-box;
    border: 3px solid rgba(151, 211, 253, 1);
    border-radius: 4px;
    box-shadow: 0px 11px 35px 0px rgba(115, 197, 255, 0.34);
    background: rgba(255, 255, 255, 1);
}

.cards-wrapper p {
    width: 850px;
    color: rgba(95, 104, 129, 1);
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 4px;
    line-height: 1.5;
    text-align: left;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    margin-top: -30px;
    margin-bottom: 30px;
    width: 100%;
    position: relative;
}


.card-header .line {
    width: 20px;
    height: 4px;
    background: #33AAFF;
    display: block;
}

.card-header .title {
    color: #8c8c8c;
    font-size: 14px;
}


.icon-circle {
    width: 160px;
    height: 160px;
    background: url('/frontend/web/image/product/cold-station/icon5.png') no-repeat center;
    display: flex;
    background-size: contain;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    position: relative;
}


.icon-circle img {
    width: 48px;
    height: 48px;
}

.card h3 {
    font-size: 24px;
    color: #262626;
    margin-bottom: 15px;
}

.card p {
    font-size: 14px;
    color: #595959;
    line-height: 1.6;
}



.part4 {
    padding-top: 80px;
}

.part4 h1 {
    margin-bottom: 60px;
    text-align: center;
    font-size: 40px;
    line-height: 40px;
    color: #262626;
}

.part4 .dashboard-img {
    text-align: center;
    margin-bottom: 60px;
}

.part4 .dashboard-img img {
    max-width: 900px;
}

.highlights-list {
    max-width: 800px;
    margin: 0 auto;
}

.highlights-list ul li {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    font-size: 16px;
    color: #595959;
    line-height: 1.6;
    letter-spacing: 4px;
    margin-bottom: 52px;
}

.highlights-list ul li .icon-diamond {
    width: 24px;
    height: 24px;
    background: url('/frontend/web/image/product/cold-station/icon4.png') no-repeat center;
    background-size: contain;
    margin-right: 16px;
    flex-shrink: 0;
}

.cross-bg {
    background: linear-gradient(180deg, rgb(138 206 244 / 10%) 0%, rgba(255, 255, 255, 0.35) 32%);
}

/* part4 values */
.part4-values {
    padding: 80px 0 120px;
    background: #fff;
}

.part4-main-title {
    text-align: center;
    font-size: 40px;
    color: #262626;
    margin-bottom: 24px;
}

.part4-subtitle {
    text-align: center;
    font-size: 16px;
    color: #8c8c8c;
    margin-bottom: 80px;
}

.values-grid {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.value-item {
    flex: 1;
    background: #fff;
    border-radius: 12px;
    padding: 0 0 40px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    transition: all 0.3s;
    overflow: visible;
}

.value-item:hover {
    box-shadow: 0 12px 36px rgba(51, 170, 255, 0.12);
    transform: translateY(-5px);
}

.value-icon-wrap {
    background: rgba(239, 249, 255, 1);
    border-radius: 12px 12px 0 0;
    padding: 24px;
    overflow: visible;
    position: relative;
}

.value-icon-wrap img {
    width: 160px;
    transform: scale(1.15);
    position: relative;
    z-index: 1;
    margin-top: -56px;
}

.value-item h4 {
    font-size: 18px;
    color: #262626;
    margin: 16px 0;
    padding: 0 16px;
}

.value-item p {
    font-size: 14px;
    color: #8c8c8c;
    line-height: 1.6;
    padding: 0 16px;
}