/* =============================================
   Banner 下方优势条
   ============================================= */
.feature-strip {
    background-image: url(/images/adv-bg.jpg);
    padding: 28px 0;
    background-repeat: no-repeat;
    background-size: cover;
    border-bottom: 1px solid #e2eaf3;
}

.feature-strip-list {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 20px;
}

.feature-strip-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: relative;
    padding: 0 10px;
}

.feature-strip-item + .feature-strip-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60%;
    background: #c9d6e5;
}

.feature-strip-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.feature-strip-text {
    font-size: 16px;
    font-weight: 600;
    color: #0357ce;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .feature-strip { padding: 18px 0; }
    .feature-strip-list { gap: 8px; }
    .feature-strip-icon { width: 28px; height: 28px; }
    .feature-strip-text { font-size: 13px; letter-spacing: 0; }
    .feature-strip-item { padding: 0 4px; }
}

/* =============================================
   热门产品模块
   ============================================= */
.hot-products {
    padding: 60px 0;
    background-image: url(/images/hot-pro-bg.png);
    background-repeat: no-repeat;
    background-position: center top;
    background-size: cover;
    background-color: #f6fbff;
}

.hot-products-header {
    text-align: center;
    margin-bottom: 40px;
}

.hot-products-title {
    font-size: 50px;
    font-weight: 700;
    color: #595757;
    letter-spacing: 4px;
    margin: 0 0 12px;
}

h2.hot-products-title span {
    color: #0357ce;
}

.hot-products-subtitle {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: #0357ce;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 4px;
}

.hot-products-subtitle .en {
    font-size: 24px;
    color: #c9caca;
}

span.line img {
    width: 100%;
}

.hot-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    align-items: stretch;
}

.hot-product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 380px;
    border-radius: 8px;
    text-decoration: none;
    color: #1a1a1a;
    text-align: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.hot-product-card:hover,
.hot-product-card-active {
    transform: translateY(-3px);
}

.hot-product-img {
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 14px;
    background: #0357ce;
    border-radius: 12px;
    padding: 6px;
    border: 2px solid #0357ce;
}

.hot-product-img img {
    width: 100%;
    height: 100%;
    display: block;
    transition: transform 0.3s ease;
    object-fit: contain;
}

.hot-product-card:hover .hot-product-img img {
    transform: scale(1.05);
}

.hot-product-name {
    font-size: 18px;
    font-weight: 600;
    color: #0357ce;
    letter-spacing: 0.5px;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 0 5%;
}

@media (max-width: 1100px) {
    .hot-products-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .hot-products { padding: 40px 0; }
    .hot-products-title { font-size: 24px; letter-spacing: 2px; }
    .hot-products-subtitle { font-size: 13px; letter-spacing: 2px; }
    .hot-products-subtitle .line { width: 36px; }
    .hot-products-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .hot-product-name { font-size: 13px; }
    .hot-product-img { padding: 4px; }
    .hot-product-card { min-height: 260px; }
}

/* =============================================
   产品展示模块（深蓝底）
   ============================================= */
.product-show {
    padding: 70px 0;
    background-image: url(/images/show-bg.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.product-show-title {
    color: #ffffff;
}

.product-show-title span {
    color: #8bc34a !important;
}

.product-show-subtitle {
    color: #ffffff;
}

.product-show-subtitle .en {
    color: rgba(255, 255, 255, 0.85);
}

.product-show-subtitle .line img {
    filter: brightness(0) invert(1);
}

.product-show-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    align-items: stretch;
}

.product-show-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 380px;
    background: #ffffff;
    border-radius: 6px;
    overflow: hidden;
    text-decoration: none;
    color: #1a1a1a;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.product-show-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.28);
}

.product-show-tag {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #8bc34a;
    color: #ffffff;
    padding: 10px 18px;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: background 0.25s ease;
}

.product-show-card:hover .product-show-tag {
    background: #7cb342;
}

.product-show-tag span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.product-show-arrow {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    position: relative;
    flex-shrink: 0;
    margin-left: 10px;
    transition: background 0.25s ease, transform 0.25s ease;
}

.product-show-arrow::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    border-top: 2px solid #ffffff;
    border-right: 2px solid #ffffff;
    transform: translate(-65%, -50%) rotate(45deg);
}

.product-show-card:hover .product-show-arrow {
    background: rgba(255, 255, 255, 0.45);
    transform: translateX(2px);
}

.product-show-img {
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #ffffff;
    padding: 16px;
    box-sizing: border-box;
}

.product-show-img img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
    object-fit: contain;
}

.product-show-card:hover .product-show-img img {
    transform: scale(1.04);
}

@media (max-width: 1100px) {
    .product-show-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .product-show { padding: 40px 0; }
    .product-show-title { font-size: 26px; letter-spacing: 2px; }
    .product-show-subtitle { font-size: 13px; letter-spacing: 2px; }
    .product-show-subtitle .line { width: 30px; }
    .product-show-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .product-show-tag { font-size: 14px; padding: 8px 14px; }
    .product-show-img { padding: 12px; }
    .product-show-card { min-height: 240px; }
}

/* =============================================
   工程案例模块
   ============================================= */
.engineering-case {
    padding: 70px 0;
    background: #ffffff;
}

.engineering-case-title span {
    color: #0357ce;
}

.engineering-case-subtitle .en {
    color: #c9caca;
}

.engineering-case-slider-wrap {
    position: relative;
    padding: 0 52px;
}

.engineering-case-slider {
    overflow: hidden;
}

.engineering-case-card {
    display: block;
    text-decoration: none;
    color: #333333;
    background: #ffffff;
    box-shadow: 0 4px 14px rgba(3, 87, 206, 0.18);
    transition: transform .25s ease, box-shadow .25s ease;
}

.engineering-case-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(3, 87, 206, 0.25);
}

.engineering-case-img {
    overflow: hidden;
    height: 190px;
}

.engineering-case-img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .35s ease;
}

.engineering-case-card:hover .engineering-case-img img {
    transform: scale(1.04);
}

.engineering-case-name {
    min-height: 54px;
    padding: 10px 12px;
    background-image: url(/images/cases-bg.png);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    color: #333333;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.6;
    text-align: center;
}

.engineering-case-prev,
.engineering-case-next {
    position: absolute;
    top: 50%;
    width: 42px;
    height: 42px;
    margin-top: -21px;
    background-image: url(/images/arr.png);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
    cursor: pointer;
    z-index: 2;
}

.engineering-case-prev {
    left: 0;
    transform: rotate(180deg);
}

.engineering-case-next {
    right: 0;
}

.engineering-case-prev::before,
.engineering-case-next::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border-top: 2px solid #2d8cff;
    border-right: 2px solid #2d8cff;
    transform: translate(-65%, -50%) rotate(45deg);
}

@media (max-width: 768px) {
    .engineering-case { padding: 40px 0; }
    .engineering-case-slider-wrap { padding: 0 42px; }
    .engineering-case-name { font-size: 13px; min-height: 48px; }
    .engineering-case-prev,
    .engineering-case-next {
        width: 34px;
        height: 34px;
        margin-top: -17px;
    }
}

/* =============================================
   选择科航四大理由
   ============================================= */
.choose-reasons {
    padding: 54px 0 60px;
    background-image: url(/images/4re-bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.choose-reasons-header {
    margin-bottom: 32px;
}

.choose-reasons-title {
    font-size: 42px;
    color: #595757;
}

.choose-reasons-title span {
    color: #67bd43;
}

.choose-reasons-subtitle .en {
    color: #c9caca;
}

.choose-reasons-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    min-height: 360px;
    align-items: stretch;
    overflow: hidden;
}

.choose-reasons-content::before,
.choose-reasons-content::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    background: rgba(196, 232, 247, 0.9);
    box-shadow: 0 0 12px rgba(80, 170, 210, 0.2);
    transform: translate(-50%, -50%);
    z-index: 3;
    pointer-events: none;
}

.choose-reasons-content::before {
    width: 100%;
    height: 14px;
    background-image: linear-gradient(90deg, rgba(196, 232, 247, 0.45), rgba(196, 232, 247, 0.95), rgba(196, 232, 247, 0.45));
}

.choose-reasons-content::after {
    width: 14px;
    height: 100%;
    background-image: linear-gradient(180deg, rgba(196, 232, 247, 0.45), rgba(196, 232, 247, 0.95), rgba(196, 232, 247, 0.45));
}

.choose-reasons-center {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 250px;
    transform: translate(-50%, -50%);
    z-index: 4;
    pointer-events: none;
}

.choose-reasons-center img {
    width: 100%;
    display: block;
    filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.18));
}

.choose-reason {
    position: relative;
    width: auto;
    min-height: 142px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.14);
    z-index: 2;
}

.choose-reason-1,
.choose-reason-3 {
    padding: 28px 170px 24px 32px;
}

.choose-reason-2,
.choose-reason-4 {
    text-align: right;
    padding: 28px 32px 24px 170px;
}

.choose-reason-1,
.choose-reason-3 {
    text-align: left;
}

.choose-reason h3 {
    position: relative;
    margin: 0 0 14px;
    color: #67bd43;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
}

.choose-reason-2 h3,
.choose-reason-3 h3 {
    color: #178bd2;
}

.choose-reason h3::before {
    content: "";
    display: inline-block;
    width: 9px;
    height: 9px;
    margin-right: 12px;
    vertical-align: middle;
    background: currentColor;
}

.choose-reason-2 h3::before,
.choose-reason-4 h3::before {
    display: none;
}

.choose-reason-2 h3::after,
.choose-reason-4 h3::after {
    content: "";
    display: inline-block;
    width: 9px;
    height: 9px;
    margin-left: 12px;
    vertical-align: middle;
    background: currentColor;
}

.choose-reason p {
    margin: 0 0 5px;
    color: #555555;
    font-size: 14px;
    line-height: 1.7;
}

.choose-reason p::before {
    content: "•";
    margin-right: 5px;
}

.choose-reason-2 p::before,
.choose-reason-4 p::before {
    content: "";
    margin-right: 0;
}

.choose-reason-2 p::after,
.choose-reason-4 p::after {
    content: "•";
    margin-left: 5px;
}

@media (max-width: 1200px) {
    .choose-reasons-center {
        width: 210px;
    }

    .choose-reason-1,
    .choose-reason-3 {
        padding-right: 130px;
    }

    .choose-reason-2,
    .choose-reason-4 {
        padding-left: 130px;
    }

    .choose-reason h3 {
        font-size: 21px;
    }

    .choose-reason p {
        font-size: 13px;
    }
}

@media (max-width: 992px) {
    .choose-reasons-content {
        min-height: auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .choose-reasons-center {
        position: static;
        grid-column: 1 / -1;
        margin: 0 auto;
        transform: none;
        order: -1;
    }

    .choose-reasons-content::before,
    .choose-reasons-content::after {
        display: none;
    }

    .choose-reason,
    .choose-reason-1,
    .choose-reason-2,
    .choose-reason-3,
    .choose-reason-4 {
        position: static;
        width: auto;
        min-height: auto;
        padding: 24px;
        text-align: left;
    }

    .choose-reason-2 h3::before,
    .choose-reason-4 h3::before {
        display: inline-block;
    }

    .choose-reason-2 h3::after,
    .choose-reason-4 h3::after,
    .choose-reason-2 p::after,
    .choose-reason-4 p::after {
        display: none;
    }

    .choose-reason-2 p::before,
    .choose-reason-4 p::before {
        content: "•";
        margin-right: 5px;
    }
}

@media (max-width: 768px) {
    .choose-reasons {
        padding: 40px 0;
    }

    .choose-reasons-title {
        font-size: 28px;
    }

    .choose-reasons-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .choose-reasons-center {
        display: none;
    }

    .choose-reason h3 {
        font-size: 18px;
    }

    .choose-reason p {
        font-size: 12px;
    }
}

/* =============================================
   关于科航模块
   ============================================= */
.about-kehang {
    padding: 64px 0 0;
    background: #ffffff;
}

.about-kehang-header {
    margin-bottom: 40px;
}

.about-kehang-title {
    font-size: 42px;
    color: #595757;
}

.about-kehang-title span {
    color: #0357ce;
}

.about-kehang-subtitle .en {
    color: #c9caca;
}

.about-kehang-main {
    display: grid;
    grid-template-columns: 48% 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 26px;
}

.about-kehang-img img {
    width: 100%;
    display: block;
}

.about-kehang-text {
    color: #4d4d4d;
    font-size: 18px;
    font-weight: 600;
    line-height: 2;
    text-align: left;
}
.about-kehang-text p{font-size: 18px !important;font-weight: 600;}

.about-kehang-text p {
    margin: 0 0 10px;
    text-indent: 2em;
}

.about-kehang-gallery {
    position: relative;
    padding: 30px 0;
    overflow: hidden;
    background-image: url(/images/pro-l-bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}

.about-kehang-gallery::before,
.about-kehang-gallery::after {
    content: "";
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    pointer-events: none;
}


.about-gallery-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.about-gallery-item {
    overflow: hidden;
    border: 2px solid #78c84d;
    border-radius: 6px;
    background: #ffffff;
}

.about-gallery-item img {
    width: 100%;
    height: 145px;
    display: block;
    object-fit: cover;
}

@media (max-width: 992px) {
    .about-kehang-main {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .about-kehang-text {
        font-size: 16px;
    }

    .about-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }
}

@media (max-width: 768px) {
    .about-kehang {
        padding-top: 40px;
    }

    .about-kehang-title {
        font-size: 28px;
    }

    .about-kehang-header {
        margin-bottom: 24px;
    }

    .about-kehang-main {
        margin-bottom: 20px;
    }

    .about-kehang-text {
        font-size: 14px;
        line-height: 1.8;
        font-weight: 500;
    }

    .about-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .about-gallery-item img {
        height: 110px;
    }
}

/* =============================================
   新闻资讯模块
   ============================================= */
.news-info {
    padding: 64px 0 70px;
    background: #ffffff;
}

.news-info-header {
    margin-bottom: 34px;
}

.news-info-title {
    font-size: 42px;
    color: #595757;
}

.news-info-title span {
    color: #67bd43;
}

.news-info-subtitle .en {
    color: #c9caca;
}

.news-block {
    margin-bottom: 36px;
}

.news-block-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 44px;
    padding-right: 32px;
    background: linear-gradient(90deg, #69bd45 0%, rgba(105, 189, 69, 0.12) 72%, rgba(105, 189, 69, 0) 100%);
}

.news-industry .news-block-head {
    background: linear-gradient(90deg, #0477d8 0%, rgba(4, 119, 216, 0.12) 72%, rgba(4, 119, 216, 0) 100%);
}

.news-head-title {
    display: flex;
    align-items: center;
    height: 44px;
    color: #ffffff;
    font-size: 24px;
    font-weight: 700;
}

.news-head-title i {
    width: 44px;
    height: 44px;
    margin-right: 14px;
    border-right: 5px solid #ffffff;
    background: rgba(255, 255, 255, 0.18);
    position: relative;
}

.news-head-title i::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 12px;
    width: 16px;
    height: 16px;
    border: 3px solid #ffffff;
    box-sizing: border-box;
}

.news-head-title i::after {
    content: "";
    position: absolute;
    left: 16px;
    top: 17px;
    width: 8px;
    height: 2px;
    background: #ffffff;
    box-shadow: 0 5px 0 #ffffff;
}

.news-more {
    display: flex;
    align-items: center;
    height: 44px;
    color: #58ad3e;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    line-height: 44px;
}

.news-industry .news-more {
    color: #0477d8;
}

.news-block-body {
    display: grid;
    grid-template-columns: 47% 1fr;
    gap: 42px;
    padding-top: 22px;
}

.news-feature-card {
    display: block;
    color: #333333;
    text-decoration: none;
    border: 1px solid #d4e9c8;
    background: #ffffff;
}

.news-industry .news-feature-card {
    border-color: #d7e8fb;
}

.news-feature-img img {
    width: 100%;
    height: 215px;
    display: block;
    object-fit: cover;
}

.news-feature-info {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px 12px;
    padding: 10px 14px;
}

.news-feature-info h3 {
    margin: 0;
    overflow: hidden;
    color: #4d4d4d;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.5;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
}

.news-feature-info time {
    color: #666666;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.news-feature-info p {
    grid-column: 1 / -1;
    margin: 0;
    overflow: hidden;
    color: #777777;
    font-size: 13px;
    line-height: 1.5;
    text-align: left;
    justify-self: stretch;
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.news-feature-card .news-feature-info p {
    text-align: left !important;
    margin-left: 0;
    margin-right: 0;
}

.news-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.news-list li {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 18px;
    align-items: center;
    min-height: 32px;
    border-bottom: 1px solid #eeeeee;
}

.news-list a {
    position: relative;
    overflow: hidden;
    padding-left: 16px;
    color: #4f4f4f;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
}

.news-list a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    margin-top: -3px;
    background: #67bd43;
}

.news-industry .news-list a::before {
    background: #0477d8;
}

.news-list time {
    color: #666666;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.news-list a:hover {
    color: #0357ce;
}

@media (max-width: 992px) {
    .news-block-body {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .news-info {
        padding: 40px 0;
    }

    .news-info-title {
        font-size: 28px;
    }

    .news-block-head {
        padding-right: 14px;
    }

    .news-head-title {
        font-size: 20px;
    }

    .news-list li,
    .news-feature-info {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .news-feature-img img {
        height: auto;
    }

    .news-info time {
        display: none;
    }
}