* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    scroll-behavior: smooth;
}

ul li {
    list-style: none;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

img {
    vertical-align: top;
    outline-width: 0ch;
}

 :root {
    --main-color: #041e33;
    --main-color-white: #ffffff;
    --main-color-333: #333333;
    --main-color-555: #555555;
    --main-color-888: #888888;
    --main-color-666: #666666;
    --main-color-999: #999999;
    --main-transition: all ease 0.4s;
    --main-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}


/* ========== HEADER ========== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: #e8e8e8;
}

.header-inner {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 60px;
    height: 80px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 36px;
    height: 45px;
}

.logo-text {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--main-color-333);
}

.header-nav>ul {
    display: flex;
    align-items: center;
    gap: 0;
}

.header-nav>ul>li {
    position: relative;
}

.header-nav>ul>li>a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #1a1a3e;
    border-radius: 30px;
    transition: var(--main-transition);
}

.header-nav>ul>li>a:hover {
    background-color: var(--main-color);
    color: #fff;
}


/* 下拉菜单 */

.header-nav .has-dropdown {
    position: relative;
}

.header-nav .dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: var(--main-transition);
    padding: 8px 0;
}

.header-nav .has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
}

.header-nav .dropdown li a {
    display: block;
    padding: 12px 24px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    color: #1a1a3e;
    transition: var(--main-transition);
}

.header-nav .dropdown li a:hover {
    background-color: var(--main-color);
    color: #fff;
}


/* 汉堡按钮（桌面端隐藏） */

.header-hamburger {
    display: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger-icon {
    width: 28px;
    height: 28px;
}


/* 移动端侧边栏（桌面端隐藏） */

.mobile-overlay {
    display: none;
}

.mobile-sidebar {
    display: none;
}

@media only screen and (min-width: 996px) {
    .header-hamburger,
    .mobile-overlay,
    .mobile-sidebar {
        display: none !important;
    }
    .header-logo img {
        height: 65px;
    }
    .ml_banner {
        width: 100%;
        margin-top: 80px !important;
    }
    .ml_banner .swiper-slide>img {
        width: 100%;
    }
    .bpos {
        position: absolute;
        width: 100%;
        height: 100%;
        left: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        top: 0;
    }
    .bpos img {
        width: 170px;
        display: block;
        margin: 0 auto;
    }
    .bpos h1 {
        margin-top: 150px;
        color: var(--main-color-white);
        font-size: 65px;
        font-weight: normal;
        text-align: center;
    }
    .bannerbtn {
        background-image: none !important;
        width: 45px !important;
        height: 45px !important;
        opacity: 0;
        display: flex;
        background: rgba(0, 0, 0, .67);
        align-items: center;
        border-radius: 50%;
        justify-content: center;
        color: #fff !important;
        font-weight: bold;
        font-size: 20px !important;
        transition: var(--main-transition);
    }
    .ml_banner:hover .bannerbtn {
        opacity: 1 !important;
    }
    .bannerpage .swiper-pagination-bullet {
        width: 18px !important;
        height: 18px !important;
        background-color: #999999;
        opacity: 1;
        border: 3px solid #fff;
    }
    .swiper-pagination-bullet-active {
        border: 3px solid #000 !important;
        background-color: #fff !important;
    }
    .con1 {
        margin: 30px 0;
        padding: 160px 0;
        background-image: url(../images/con1pic.jpg);
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
    }
    .con1con {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background-color: #fff;
        padding: 40px;
    }
    .con1left {
        width: 48%;
    }
    .con1left img {
        width: 100%;
    }
    .con1right {
        width: 48%;
    }
    .con1right strong {
        position: relative;
        display: inline-block;
        color: var(--main-color);
        font-size: 41px;
        margin-bottom: 50px;
        font-weight: normal;
    }
    .con1right strong::after {
        content: '';
        position: absolute;
        width: 80%;
        height: 3px;
        background-color: var(--main-color);
        bottom: -15px;
        left: 0;
    }
    .con1right p {
        font-size: 20px;
        color: var(--main-color);
        line-height: 35px;
    }
    .con2 {
        padding: 80px 0;
    }
    .con_tit {
        display: flex;
        padding: 0 7%;
        justify-content: space-between;
        margin-bottom: 45px;
    }
    .con_tit strong {
        display: inline-block;
        color: var(--main-color);
        font-weight: normal;
        position: relative;
        font-size: 41px;
    }
    .con_tit strong::after {
        content: '';
        position: absolute;
        width: 100%;
        height: 2px;
        background-color: var(--main-color);
        left: 0;
        bottom: -10px;
    }
    .con_tit img {
        height: 65px;
    }
    .con2con {
        padding: 15px 0;
        background-color: #e6e6e6;
    }
    .con2box {
        display: flex;
        align-items: center;
        max-width: 1350px;
        margin: 0 auto;
        justify-content: space-between;
    }
    .con2left {
        width: 45%;
    }
    .con2left img {
        width: 100%;
    }
    .con2right {
        width: 50%;
    }
    .con2right p {
        font-size: 20px;
        color: var(--main-color);
        line-height: 35px;
    }
    .con3con {
        width: 100%;
       
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
        padding: 30px 0;
    }
    .con3box {
        max-width: 1200px;
        margin: 0 auto;
        overflow: hidden;
    }
    .con3box ul {
        display: flex;
        width: 100%;
    }
    .con3box ul li {
        transition: var(--main-transition);
        width: calc(100% / 3);
        height: 600px;
        overflow: hidden;
        cursor: pointer;
    }
    .con3box ul li img {
        height: 600px;
        transition: var(--main-transition);
    }
    .con3box ul:hover li {
        width: 20%;
    }
    .con3box ul li:hover {
        width: 60%;
    }
    .con3box ul li:hover img {
        width: 100%;
        object-fit: cover;
    }
    .con4 {
        padding: 80px 0;
    }
    .con4con {
        padding: 50px 0;
        background-color: #e6e6e6;
    }
    .con4list {
        max-width: 1000px;
        margin: 0 auto;
    }
    .con4list ul {
        display: flex;
        flex-wrap: wrap;
    }
    .con4list ul li {
        width: calc(100% / 6);
    }
    .con4list ul li img {
        width: 100%;
        height: 56px;
        object-fit: contain;
    }
    .con5 .ml_banner {
        margin-top: 0 !important;
    }
    /* con6 Contact Us */
    .con6 {
        padding: 80px 0;
        background-color: #f0f4f8;
    }
    .con6-inner {
        max-width: 630px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .con6-title {
        text-align: center;
        color: var(--main-color);
        font-size: 36px;
        font-weight: 700;
        margin-bottom: 40px;
    }
    .con6-row {
        display: flex;
        gap: 20px;
        margin-bottom: 20px;
    }
    .con6-full {
        flex-direction: column;
    }
    .con6-field {
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .con6-field label {
        font-size: 15px;
        font-weight: 600;
        color: var(--main-color);
        margin-bottom: 8px;
    }
    .con6-field input,
    .con6-field select,
    .con6-field textarea {
        width: 100%;
        padding: 14px 16px;
        border: 1px solid #ddd;
        border-radius: 6px;
        font-size: 15px;
        font-family: Arial, Helvetica, sans-serif;
        color: var(--main-color-333);
        background: #fff;
        outline: none;
        transition: var(--main-transition);
        appearance: auto;
    }
    .con6-field input:focus,
    .con6-field select:focus,
    .con6-field textarea:focus {
        border-color: var(--main-color);
    }
    .con6-field textarea {
        resize: vertical;
        min-height: 120px;
    }
    .con6-submit {
        text-align: center;
        margin-top: 10px;
    }
    .con6-submit button {
        display: inline-block;
        padding: 14px 60px;
        background: var(--main-color);
        color: #fff;
        border: none;
        border-radius: 30px;
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 2px;
        cursor: pointer;
        transition: var(--main-transition);
    }
    .con6-submit button:hover {
        opacity: 0.85;
        transform: translateY(-2px);
    }
    /* ========== FOOTER ========== */
    .foot {
        background-color: #3a3f47;
        color: #fff;
    }
    .foot-inner {
        max-width: 1400px;
        margin: 0 auto;
        padding: 60px 40px 40px;
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 40px;
    }
    .foot-left {
        flex-shrink: 0;
        width: 220px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding-top: 20px;
    }
    .foot-left img {
        max-width: 100%;
        height: auto;
    }
    .foot-center {
        display: flex;
        flex-direction: column;
        gap: 22px;
    }
    .foot-info {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 15px;
        color: #fff;
    }
    .foot-info i {
        font-size: 20px;
        color: #ccc;
        width: 24px;
        flex-shrink: 0;
        text-align: center;
    }
    .foot-right {
        flex-shrink: 0;
        width: 300px;
    }
    .foot-right h3 {
        font-size: 22px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 30px;
    }
    .foot-social {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .foot-social a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px !important;
        height: 40px !important;
        border-radius: 50% !important;
        background: rgba(255, 255, 255, 0.1);
        color: #fff;
        font-size: 20px;
        transition: var(--main-transition);
    }
    .foot-social a img {
        width: 20px;
    }
    .foot-social a:hover {
        background: var(--main-color);
    }
    .foot-xhs {
        width: auto !important;
        padding: 0 14px;
        font-size: 14px !important;
        border-radius: 20px !important;
    }
    .foot-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 40px;
        text-align: center;
    }
    .foot-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.5);
    }
    .ab1 {
        padding: 80px 0;
        margin-top: 80px;
    }
    .ab1con {
        width: 100%;
        position: relative;
    }
    .ab1T {
        width: 100%;
        height: 120px;
        background-color: var(--main-color);
    }
    .ab1bg {
        height: 600px;
      
        background-size: cover;
        background-attachment: fixed;
        width: 100%;
    }
    .ab1box {
        width: 1200px;
        position: absolute;
        left: 50%;
        padding: 70px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    background-color: #fff;
    transform: translateX(-50%);
    top: -20px;
    align-items: center;
    }
    .ab1left {
        width: 48%;
    }
    .ab1left strong {
        font-size: 41px;
        color: var(--main-color);
        font-weight: normal;
        margin-bottom: 20px;
        display: block;
    }
    .ab1left p {
        font-size: 18px;
        color: var(--main-color);
        line-height: 35px;text-align: justify;
    }
    .ab1right {
        width: 48%;
    }
    .ab1right img {
        width: 100%;
    }
    .p_nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: 80px;
        padding: 40px 5%;
        background-color: #033d70;
    }
    .p_nav a {
        text-align: center;
        color: var(--main-color);
        font-size: 16px;
        font-weight: bold;
        background-color: #fff;
        padding: 15px 120px;
    }
    .pro_box {
        padding: 50px 0;
    }
    .pro_box strong {
        display: block;
        text-align: center;
        color: var(--main-color);
        font-size: 40px;
        font-weight: normal;
        margin-bottom: 50px;
    }
    .pro_box ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .pro_box ul li {
        width: 50%;
        margin-bottom: 35px;
        text-align: center;
        overflow: hidden;
    }
    .pro_box ul li img {
        width: 100%;
        transition: var(--main-transition);height: 400px;
    object-fit: cover;
    }
    .li_box {
        position: relative;
        overflow: hidden;
    }
    .propos {
        position: absolute;
        width: 100%;
        transition: var(--main-transition);
        opacity: 0;
        height: 100%;
        left: 0;
        text-align: center;
        top: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        font-weight: bold;
        color: #fff;
        line-height: 35px;
        font-size: 25px;
    }
    .pro_box ul li a {
        display: inline-block;
        padding: 15px 100px;
        text-align: center;
        margin-top: 35px;
        color: #fff;
        font-weight: bold;
        background-color: var(--main-color);
    }
    .pro_box ul li:hover img {
        transform: scale(1.1);
    }
    .pro_box ul li:hover .propos {
        opacity: 1 !important;
        background: rgba(0, 0, 0, 0.5) !important;
        backdrop-filter: blur(3px);
        -webkit-backdrop-filter: blur(10px)
    }
    .contact {
        padding: 80px 0;
    }
    /* con_box */
    .con_box {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        margin-top: 120px;
    }
    .con_box-item {
        margin-bottom: 50px;
    }
    .con_box-title {
        font-size: 32px;
        font-weight: 700;
        color: var(--main-color);
        margin-bottom: 20px;
        display: inline-block;
        border-bottom: 3px solid var(--main-color);
        padding-bottom: 5px;
    }
    .con_box-bar {
        background: var(--main-color);
        box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
        border-radius: 15px;
        padding: 25px 40px;
        display: flex;
        align-items: center;
        justify-content: space-around;
    }
    .con_box-info {
        display: flex;
        align-items: center;
        gap: 12px;
        color: #fff;
        font-size: 16px;
    }
    .con_box-info i {
        font-size: 20px;
        opacity: 0.9;
    }
    .inside {
        max-width: 1200px;
        margin: 0 auto;
        margin-top: 120px;
        margin-bottom: 60px;
    }
    .de1 {
        padding: 80px 0;
    }
    .de1con {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .de1left {
        width: 48%;
    }
    .de1right {
        width: 48%;
    }
    .de1right img {
        width: 100%;
    }
    .de1left strong {
        font-size: 41px;
        color: #182869;
        display: block;
        margin-bottom: 50px;
    }
    .de1left p {
        color: #7a7a7a;
        font-size: 20px;
        line-height: 35px;
    }
    /* de2 Project Summary */
    .de2 {
        padding: 80px 0;
        background-color: #e8e8e8;
    }
    .de2-title {
        text-align: center;
        font-size: 36px;
        font-weight: 700;
        color: #182869;
        margin-bottom: 50px;
    }
    .de2-inner {
        max-width: 1250px;
        margin: 0 auto;
        padding: 0 110px;
        display: flex;
        justify-content: space-between;
        gap: 60px;
    }
    .de2-col {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 30px;
    }
    .de2-item {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .de2-icon {
        width: 55px;
        height: 55px;
        border-radius: 50%;
        background: #3a3f7a;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .de2-icon i {
        font-size: 22px;
        color: #fff;
    }
    .de2-text strong {
        display: block;
        font-size: 18px;
        font-weight: 700;
        color: #3a3f7a;
        margin-bottom: 4px;
    }
    .de2-text span {
        font-size: 16px;
        color: #7a7a7a;
    }
    .de3 {
        padding: 40px 0;
    
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
    }
    .de3con {
        max-width: 1500px;
        margin: 0 auto;
    }
    .de3Item {
            padding: 40px;
    background-color: #fff;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;    margin-top: 50px;
    }
    .de3left {
        width: 49%;
    }
    .de3right {
        width: 49%;
    }
    .de3left img {
        width: 100%;    max-height: 600px;
    object-fit: contain;
    }
    .de3right strong {
        display: block;
        font-size: 40px;
        color: #182869;
        margin-bottom: 40px;
    }
    .de3right p {
        color: #7a7a7a;
        font-size: 20px;
        line-height: 30px;
    }
    .de3con .de3Item:nth-child(even) {
        flex-direction: row-reverse;
    }
    .de4 {
        padding: 80px 0;
    }
    .de4con {
        max-width: 1200px;
        margin: 0 auto;
    }
    .de4con ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .de4con ul li {
        width: 32%;
        margin-bottom: 20px;
    }
    .de4con ul li img {
        width: 100%;    height: 300px;
    object-fit: cover;
    }
    .de5 {
        padding: 80px 0;
    }
    .de5con {
        max-width: 1200px;
        margin: 0 auto;
    }
    .de5con ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    .de5con ul li a {
        color: #6ec1e4;
        font-size: 28px;
        font-weight: bold;
        margin: 0 40px;
    }
    .ab2 .con_tit {
        max-width: 1000px;
        margin: 0 auto;
        padding: 0 !important;
        margin-bottom: 50px;
    }
    /* ab2con */
    .ab2out {
        background-color: #033d70;
        padding: 80px 0;
    }
    .ab2 {
        padding: 80px 0;
    }
    .ab2con {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .ab2-text {
        /*margin-bottom: 50px;*/
    }
    .ab2-text p {
        color: #fff;
        font-size: 18px;
        line-height: 30px;
        margin-bottom: 10px;
    }
    .ab2-video {
        display: flex;
        gap: 0;
        background: #2a2a2a;
    }
    .ab2-player {
        flex: 1;
        min-height: 400px;
        background: #1a1a1a;
        position: relative;
        overflow: hidden;
    }
    .ab2-video-panel {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s ease;
    }
    .ab2-video-panel.active {
        opacity: 1;
        visibility: visible;
        z-index: 1;
    }
    .ab2-video-panel iframe {
        width: 100%;
        height: 100%;
        border: none;
    }
    .ab2-list {
        width: 280px;
        flex-shrink: 0;
        background: #333;
    }
    .ab2-list-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 16px 18px;
        cursor: pointer;
        transition: var(--main-transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .ab2-list-item:hover {
        background: rgba(255, 255, 255, 0.05);
    }
    .ab2-list-item.active {
        background: #444;
    }
    .ab2-list-item.active .ab2-thumb {
        border: 2px solid #e74c3c;
    }
    .ab2-thumb {
        width: 60px;
        height: 40px;
        flex-shrink: 0;
        overflow: hidden;
        border: 2px solid transparent;
        transition: var(--main-transition);
    }
    .ab2-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .ab2-list-item span {
        color: #fff;
        font-size: 14px;
        line-height: 1.4;
    }
}

@media only screen and (max-width: 996px) {
    .ab2out {
        background-color: #033d70;
        padding: 30px 15px;
    }
    .ab2 {}
    .ab2con {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .ab2-text {
        margin-bottom: 50px;
    }
    .ab2-text p {
        color: #fff;
        font-size: 18px;
        line-height: 30px;
        margin-bottom: 10px;
    }
    .ab2-video {
        display: flex;
        gap: 0;
        background: #2a2a2a;
    }
    .ab2-player {
        flex: 1;
        min-height: 400px;
        background: #1a1a1a;
        position: relative;
        overflow: hidden;
    }
    .ab2-video-panel {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s ease;
    }
    .ab2-video-panel.active {
        opacity: 1;
        visibility: visible;
        z-index: 1;
    }
    .ab2-video-panel iframe {
        width: 100%;
        height: 100%;
        border: none;
    }
    .ab2-list {
        width: 280px;
        flex-shrink: 0;
        background: #333;
    }
    .ab2-list-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 16px 18px;
        cursor: pointer;
        transition: var(--main-transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .ab2-list-item:hover {
        background: rgba(255, 255, 255, 0.05);
    }
    .ab2-list-item.active {
        background: #444;
    }
    .ab2-list-item.active .ab2-thumb {
        border: 2px solid #e74c3c;
    }
    .ab2-thumb {
        width: 60px;
        height: 40px;
        flex-shrink: 0;
        overflow: hidden;
        border: 2px solid transparent;
        transition: var(--main-transition);
    }
    .ab2-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .ab2-list-item span {
        color: #fff;
        font-size: 14px;
        line-height: 1.4;
    }
    .de5 {
        padding: 30px 15px;
    }
    .de5con {
        margin: 0 auto;
    }
    .de5con ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    .de5con ul li a {
        color: #6ec1e4;
        font-size: 15px;
        font-weight: bold;
        margin: 0 20px;
        margin-bottom: 10px;
    }
    .de4 {
        padding: 30px 15px;
    }
    .de4con {
        margin: 0 auto;
    }
    .de4con ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .de4con ul li {
        width: 100%;
        margin-bottom: 20px;
    }
    .de4con ul li img {
        width: 100%;
    }
    .de3 {
        padding: 30px 15px;
        background-image: url(../images/debg.png);
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
    }
    .de3con {
        margin: 0 auto;
    }
    .de3Item {
        padding: 20px;
        background-color: #fff;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .de3left {
        width: 100%;
    }
    .de3right {
        width: 100%;
        margin-top: 20px;
    }
    .de3left img {
        width: 100%;
    }
    .de3right strong {
        display: block;
        font-size: 20px;
        color: #182869;
        margin-bottom: 20px;
    }
    .de3right p {
        color: #7a7a7a;
        font-size: 16px;
        line-height: 25px;
    }
    .de1 {
        padding: 30px 15px;
    }
    .de1con {
        margin: 0 auto;
        display: flex;
        align-items: center;
        flex-direction: column-reverse;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .de1left {
        width: 100%;
        margin-top: 20px;
    }
    .de1right {
        width: 100%;
    }
    .de1right img {
        width: 100%;
    }
    .de1left strong {
        font-size: 20px;
        color: #182869;
        display: block;
        margin-bottom: 20px;
    }
    .de1left p {
        color: #7a7a7a;
        font-size: 15px;
        line-height: 25px;
    }
    .inside {
        margin-top: 60px;
        padding: 15px;
        margin: 0 auto;
    }
    /* de2 移动端 */
    .de2 {
        padding: 40px 15px;
    }
    .de2-title {
        font-size: 24px;
        margin-bottom: 30px;
    }
    .de2-inner {
        flex-direction: column;
        gap: 30px;
        padding: 0;
    }
    .de2-col {
        gap: 20px;
    }
    .de2-item {
        gap: 15px;
    }
    .de2-icon {
        width: 45px;
        height: 45px;
    }
    .de2-icon i {
        font-size: 18px;
    }
    .de2-text strong {
        font-size: 16px;
    }
    .de2-text span {
        font-size: 14px;
    }
    .p_nav {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        margin-top: 60px;
        padding: 30px 15px;
        background-color: #033d70;
    }
    .p_nav a {
        text-align: center;
        color: var(--main-color);
        font-size: 14px;
        font-weight: bold;
        background-color: #fff;
        padding: 15px;
    }
    .pro_box {
        padding: 20px 10px;
    }
    .pro_box strong {
        display: block;
        text-align: center;
        color: var(--main-color);
        font-size: 20px;
        font-weight: normal;
        margin-bottom: 30px;
    }
    .pro_box ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .pro_box ul li {
        width: 100%;
        margin-bottom: 35px;
        text-align: center;
        overflow: hidden;
    }
    .pro_box ul li img {
        width: 100%;
        transition: var(--main-transition);
    }
    .li_box {
        position: relative;
        overflow: hidden;
    }
    .propos {
        position: absolute;
        width: 100%;
        transition: var(--main-transition);
        opacity: 0;
        height: 100%;
        left: 0;
        text-align: center;
        top: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        font-weight: bold;
        color: #fff;
        line-height: 30px;
        font-size: 16px;
    }
    .pro_box ul li a {
        display: inline-block;
        padding: 15px 100px;
        text-align: center;
        margin-top: 35px;
        color: #fff;
        font-weight: bold;
        background-color: var(--main-color);
    }
    .pro_box ul li:hover img {
        transform: scale(1.1);
    }
    .pro_box ul li:hover .propos {
        opacity: 1 !important;
        background: rgba(0, 0, 0, 0.5) !important;
        backdrop-filter: blur(3px);
        -webkit-backdrop-filter: blur(10px)
    }
    .ab1 {
        margin-top: 60px;
        padding: 30px 0;
    }
    .ab1 .con_tit {
        padding: 15px 15px;
    }
    .ab1con {
        width: 100%;
        position: relative;
        background-image: url(../images/abbg.jpg);
        background-size: cover;
        background-attachment: fixed;
        padding: 30px;
    }
    .ab1T {
        display: none;
    }
    .ab1bg {
        display: none;
    }
    .ab1box {
        width: 100%;
        padding: 20px;
        display: flex;
        flex-wrap: wrap;
        flex-direction: column-reverse;
        justify-content: space-between;
        background-color: #fff;
    }
    .ab1left {
        width: 100%;
    }
    .ab1left strong {
        font-size: 20px;
        color: var(--main-color);
        font-weight: normal;
        margin-bottom: 20px;
        display: block;
    }
    .ab1left p {
        font-size: 14px;
        color: var(--main-color);
        line-height: 25px;
    }
    .ab1right {
        width: 100%;
        margin-bottom: 20px;
    }
    .ab1right img {
        width: 100%;
    }
    .con5 .ml_banner {
        margin-top: 0 !important;
    }
    .con5 {
        padding: 30px 15px;
    }
    .con4 {
        padding: 30px 15px;
    }
    .con4con {
        background-color: #e6e6e6;
        padding: 20px;
    }
    .con4list {
        max-width: 800px;
        margin: 0 auto;
    }
    .con4list ul {
        display: flex;
        flex-wrap: wrap;
    }
    .con4list ul li {
        width: calc(100% / 2);
    }
    .con4list ul li img {
        width: 100%;
        height: 56px;
        object-fit: contain;
    }
    .con2 {
        padding: 30px 15px;
    }
    .con_tit {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        margin-bottom: 30px;
    }
    .con_tit strong {
        display: inline-block;
        color: var(--main-color);
        font-weight: normal;
        position: relative;
        font-size: 20px;
    }
    .con_tit strong::after {
        content: '';
        position: absolute;
        width: 100%;
        height: 2px;
        background-color: var(--main-color);
        left: 0;
        bottom: 0px;
    }
    .con_tit img {
        height: 35px;
    }
    .con2con {
        padding: 15px 0;
        background-color: #e6e6e6;
    }
    .con2box {
        display: flex;
        align-items: center;
        margin: 0 auto;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .con2left {
        width: 100%;
        margin-bottom: 20px;
    }
    .con2left img {
        width: 100%;
    }
    .con2right {
        width: 100%;
        padding: 20px;
    }
    .con2right p {
        font-size: 14px;
        color: var(--main-color);
        line-height: 25px;
    }
    .con1 {
        padding: 30px 15px;
       
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
    }
    .con1con {
        flex-wrap: wrap;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background-color: #fff;
        padding: 15px;
    }
    .con1left {
        width: 100%;
        margin-bottom: 20px;
    }
    .con1left img {
        width: 100%;
    }
    .con1right {
        width: 100%;
    }
    .con1right strong {
        position: relative;
        display: inline-block;
        color: var(--main-color);
        font-size: 20px;
        margin-bottom: 30px;
        font-weight: normal;
    }
    .con1right strong::after {
        content: '';
        position: absolute;
        width: 80%;
        height: 3px;
        background-color: var(--main-color);
        bottom: -15px;
        left: 0;
    }
    .con1right p {
        font-size: 14px;
        color: var(--main-color);
        line-height: 25px;
    }
    .ml_banner {
        width: 100%;
        margin-top: 60px !important;
    }
    .ml_banner .swiper-slide>img {
        width: 100%;
    }
    .bpos {
        position: absolute;
        width: 100%;
        height: 100%;
        left: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        top: 0;
    }
    .bpos img {
        width: 100px;
        display: block;
        margin: 0 auto;
    }
    .bpos h1 {
        margin-top: 30px;
        color: var(--main-color-white);
        font-size: 20px;
        font-weight: normal;
        text-align: center;
    }
    .bannerbtn {
        background-image: none !important;
        width: 30px !important;
        height: 30px !important;
        display: flex;
        background: rgba(0, 0, 0, .67);
        align-items: center;
        border-radius: 50%;
        justify-content: center;
        color: #fff !important;
        font-weight: bold;
        font-size: 16px !important;
        transition: var(--main-transition);
    }
    .bannerpage .swiper-pagination-bullet {
        width: 14px !important;
        height: 14px !important;
        background-color: #999999;
        opacity: 1;
        border: 2px solid #fff;
    }
    .swiper-pagination-bullet-active {
        border: 2px solid #000 !important;
        background-color: #fff !important;
    }
    .header-logo img {
        height: 50px;
    }
    .header-inner {
        padding: 0 20px;
        height: 60px;
    }
    .header-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .header-nav {
        display: none;
    }
    .header-hamburger {
        display: block;
    }
    /* 侧边栏遮罩 */
    .mobile-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1001;
    }
    .mobile-overlay.active {
        display: block;
    }
    /* 侧边栏 */
    .mobile-sidebar {
        display: block;
        position: fixed;
        top: 0;
        left: -300px;
        width: 280px;
        height: 100%;
        background: #1a2a2a;
        z-index: 1002;
        transition: left 0.3s ease;
        overflow-y: auto;
        padding: 0;
    }
    .mobile-sidebar.active {
        left: 0;
    }
    .sidebar-close {
        position: absolute;
        top: 16px;
        right: 16px;
        font-size: 28px;
        color: #fff;
        cursor: pointer;
        line-height: 1;
        z-index: 10;
    }
    .mobile-sidebar>ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .mobile-sidebar>ul>li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .mobile-sidebar>ul>li>a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 24px;
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        text-decoration: none;
        transition: var(--main-transition);
    }
    .mobile-sidebar>ul>li>a:hover,
    .mobile-sidebar>ul>li.active>a {
        background: var(--main-color);
    }
    .dropdown-arrow {
        font-size: 12px;
        transition: transform 0.3s ease;
    }
    .mobile-sidebar>ul>li.mobile-dropdown-open>a .dropdown-arrow {
        transform: rotate(180deg);
    }
    .mobile-dropdown {
        list-style: none;
        padding: 0;
        margin: 0;
        /*max-height: 0;*/ display:none;
        overflow: hidden;
        transition: max-height 0.3s ease;
        background: rgba(0, 0, 0, 0.15);
    }
    .mobile-dropdown.open {
        /*max-height: 300px;*/
    }
    .mobile-dropdown li a {
        display: block;
        padding: 14px 24px 14px 40px;
        font-size: 13px;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.8);
        text-decoration: none;
        letter-spacing: 1px;
        transition: var(--main-transition);
    }
    .mobile-dropdown li a:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.05);
    }
    /* con3 移动端手风琴 */
    .con3 {
        padding: 30px 15px;
    }
    .con3con {
        width: 100%;
        padding: 15px 0;
    }
    .con3box ul {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    .con3box ul li {
        transition: var(--main-transition);
        width: 100%;
        height: 120px;
        overflow: hidden;
        cursor: pointer;
        border-radius: 8px;
    }
    .con3box ul li img {
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: var(--main-transition);
    }
    .con3box ul:hover li {
        height: 80px;
    }
    .con3box ul li:hover {
        height: 260px;
    }
    .con3box ul li:hover img {
        transform: scale(1.05);
    }
    /* con6 移动端 */
    .con6 {
        padding: 80px 0;
        background-color: #f0f4f8;
    }
    .con6-inner {
        max-width: 630px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .con6-title {
        text-align: center;
        color: var(--main-color);
        font-size: 36px;
        font-weight: 700;
        margin-bottom: 40px;
    }
    .con6-row {
        gap: 20px;
        margin-bottom: 20px;
    }
    .con6-full {
        flex-direction: column;
    }
    .con6-field {
        flex: 1;
        margin-bottom: 20px;
        display: flex;
        flex-direction: column;
    }
    .con6-field label {
        font-size: 15px;
        font-weight: 600;
        color: var(--main-color);
        margin-bottom: 8px;
    }
    .con6-field input,
    .con6-field select,
    .con6-field textarea {
        width: 100%;
        padding: 14px 16px;
        border: 1px solid #ddd;
        border-radius: 6px;
        font-size: 15px;
        font-family: Arial, Helvetica, sans-serif;
        color: var(--main-color-333);
        background: #fff;
        outline: none;
        transition: var(--main-transition);
        appearance: auto;
    }
    .con6-field input:focus,
    .con6-field select:focus,
    .con6-field textarea:focus {
        border-color: var(--main-color);
    }
    .con6-field textarea {
        resize: vertical;
        min-height: 120px;
    }
    .con6-submit {
        text-align: center;
        margin-top: 10px;
    }
    .con6-submit button {
        display: inline-block;
        padding: 14px 60px;
        background: var(--main-color);
        color: #fff;
        border: none;
        border-radius: 30px;
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 2px;
        cursor: pointer;
        transition: var(--main-transition);
    }
    .con6-submit button:hover {
        opacity: 0.85;
        transform: translateY(-2px);
    }
    /* foot 移动端 */
    .foot {
        background-color: #3a3f47;
        color: #fff;
    }
    .foot-inner {
        margin: 0 auto;
        padding: 30px 15px;
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }
    .foot-left {
        flex-shrink: 0;
        width: 150px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding-top: 20px;
    }
    .foot-left img {
        max-width: 100%;
        height: auto;
    }
    .foot-center {
        display: flex;
        flex-direction: column;
        gap: 22px;
    }
    .foot-info {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 15px;
        color: #fff;
    }
    .foot-info i {
        font-size: 20px;
        color: #ccc;
        width: 24px;
        flex-shrink: 0;
        text-align: center;
    }
    .foot-right {
        flex-shrink: 0;
        width: 300px;
    }
    .foot-right h3 {
        font-size: 22px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 30px;
    }
    .foot-social {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .foot-social a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px !important;
        height: 40px !important;
        border-radius: 50% !important;
        background: rgba(255, 255, 255, 0.1);
        color: #fff;
        font-size: 20px;
        transition: var(--main-transition);
    }
    .foot-social a img {
        width: 20px;
    }
    .foot-social a:hover {
        background: var(--main-color);
    }
    .foot-xhs {
        width: auto !important;
        padding: 0 14px;
        font-size: 14px !important;
        border-radius: 20px !important;
    }
    .foot-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 40px;
        text-align: center;
    }
    .foot-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.5);
    }
    /* con_box 移动端 */
    .contact {
        padding: 30px 15px;
    }
    /* con_box */
    .con_box {
        max-width: 1200px;
        margin: 0 auto;
        margin-top: 40px;
    }
    .con_box-item {
        margin-bottom: 30px;
    }
    .con_box-title {
        font-size: 20px;
        font-weight: 700;
        color: var(--main-color);
        margin-bottom: 15px;
        display: inline-block;
        border-bottom: 3px solid var(--main-color);
        padding-bottom: 5px;
    }
    .con_box-bar {
        background: var(--main-color);
        box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
        border-radius: 15px;
        padding: 25px 40px;
        display: flex;
        flex-wrap: wrap;
    }
    .con_box-info {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 10px;
        color: #fff;
        font-size: 16px;
    }
    .con_box-info i {
        font-size: 20px;
        opacity: 0.9;
    }
    .con_box-info i {
        font-size: 20px;
        opacity: 0.9;
    }
    /* de2 Project Summary */
    .de2 {
        padding: 80px 0;
        background-color: #e8e8e8;
    }
    .de2-title {
        text-align: center;
        font-size: 36px;
        font-weight: 700;
        color: #182869;
        margin-bottom: 50px;
    }
    .de2-inner {
        max-width: 1250px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        justify-content: space-between;
        gap: 60px;
    }
    .de2-col {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 30px;
    }
    .de2-item {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .de2-icon {
        width: 55px;
        height: 55px;
        border-radius: 50%;
        background: #3a3f7a;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .de2-icon i {
        font-size: 22px;
        color: #fff;
    }
    .de2-text strong {
        display: block;
        font-size: 18px;
        font-weight: 700;
        color: #3a3f7a;
        margin-bottom: 4px;
    }
    .de2-text span {
        font-size: 16px;
        color: #7a7a7a;
    }
    /* ab2con 移动端 */
    .ab2 {
        padding: 40px 15px;
    }
    .ab2con {
        padding: 0;
    }
    .ab2-text p {
        font-size: 15px;
        line-height: 26px;
    }
    .ab2-video {
        flex-direction: column;
    }
    .ab2-player {
        min-height: 250px;
    }
    .ab2-video-placeholder {
        min-height: 250px;
    }
    .ab2-list {
        width: 100%;
    }
}