* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;

}

.wrapper {
    width: 1200px;
    margin: 0 auto;
}

.rect {
    filter: drop-shadow(0 6px 8px rgba(0, 0, 0, .15));
    border-top: 10px solid rgba(0, 122, 186, 1);
}

.rect .card {
    width: 100%;
    background: #fff;
    --cut: 40px;

    clip-path: polygon(0 0,
            100% 0,
            100% calc(100% - var(--cut)),
            calc(100% - var(--cut)) 100%,
            0 100%);
}


/* section-1 styles */


.section-1 .section-title {
    /*color: rgba(92, 90, 90, 1);*/
   /* font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;*/
    /*text-align: center;*/
    /*margin-bottom: 64px;*/
}

.section-1 .content-p {
    margin-bottom: 28px;
    color: rgba(92, 90, 90, 1);

    font-size: 30px;
    font-weight: 400;
    line-height: 50px;
    letter-spacing: 0px;
    text-align: left;
}

/* section-2 styles */

.section-2 .section-title {
    color: rgba(92, 90, 90, 1);

    font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;
    text-align: center;
}

.section-2 .img-box {
    margin-top: 63px;
}

.section-2 .img-box img {
    width: 100%;
    height: auto;
    display: block;
}
.section-2 .img-box .desktop-img {
    display: block;
}
.section-2 .img-box .mobile-img {
    display: none;
}


/* section-3 styles */
.section-3 {
    margin-top: 89px;
}

.section-3 .card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 150px;padding: 0.5rem;
}

.section-3 .tel {
    color: rgba(0, 122, 186, 1);

    font-style: Bold;
    font-size: 31px!important;
    font-weight: 700;
    line-height: 37px;
    letter-spacing: 0px;
    text-align: left;
}

.section-3 .tel-info {
    color: rgba(0, 122, 186, 1);

    font-size: 22px;
    font-weight: 350;
    line-height: 26px;
    letter-spacing: 0px;
    text-align: left;
}

/* section-4 styles */


.section-4 .section-title {
    color: rgba(92, 90, 90, 1);
    font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;
    text-align: center;
}

.section-4 .content-p {
    color: rgba(92, 90, 90, 1);

    font-size: 30px;
    font-weight: 400;
    line-height: 50px;
    letter-spacing: 0px;
    text-align: left;
    margin-top: 63px;
}

.section-4 .img-box {
    margin-top: 20px;
}

.section-4 .img-box img {
    width: 100%;
    height: auto;
    display: block;
}




.section-5 .section-title {
    color: rgba(92, 90, 90, 1);

    font-style: Bold;
    font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;
    text-align: center;
    margin-bottom: 23px;
}

.section-5 .section-item {
    width: 100%;
    padding: 45px 70px;
    /* display: grid;
  grid-template-columns: repeat(2, 1fr); */
    display: flex;
    background: rgba(246, 247, 247, 1);
    margin-bottom: 29px;
    gap: 35px;
}

.section-5 .section-item.reverse {
    flex-direction: row-reverse;
}

.section-5 .left {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.section-5 .left .group {
    position: relative;
    color: rgba(0, 122, 194, 1);
    font-style: Bold;
    font-size: 28px;
    font-weight: 700;
    line-height: 34px;
    letter-spacing: 0px;
    text-align: center;
    margin-bottom: 20px;
}

.section-5 .left .group .bar {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 2px;
    background: rgba(0, 122, 194, 1);
}

.section-5 .left .group .bar::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 74px;
    height: 4px;
    background: rgba(0, 122, 194, 1);
    border-radius: 5px;
}

.section-5 .left .group .tit {
    padding: 21px 27px;

}


.section-5 .left li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    color: rgba(92, 90, 90, 1);

    font-size: 20px;
    font-weight: 400;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
}

.section-5 .left li img {
    width: 18px;margin-right: 0.5rem;
}

.section-5 .right {
    flex: 1;
    overflow: hidden;
}

.section-5 .right img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* section-6 styles */
.section-6 {
    /*margin-top: 110px;*/
}

.section-6 .section-title {
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 32px;
    color: #333;
}

.section-6 .tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.section-6 .tech-grid2 {
    margin-top: 24px;
}

.section-6 .card {
    background: #fff;
    padding: 24px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 24px;
    height: 150px;
    ;
    --cut: 20px;
    clip-path: polygon(0 0,
            100% 0,
            100% calc(100% - var(--cut)),
            calc(100% - var(--cut)) 100%,
            0 100%);
}

.section-6 .tech-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.section-6 .tech-icon img {
    width: 80px;
    object-fit: contain;
}

.section-6 .tech-content {
    display: flex;
    flex-direction: column;
    gap: 13px;
    ;
}

.section-6 .tech-content h3 {
    color: rgba(0, 122, 194, 1);
    font-size: 25px;
    font-weight: 700;
    line-height: 30px;
    letter-spacing: 0px;
}

.section-6 .tech-content p {
    color: rgba(92, 90, 90, 1);

    font-size: 20px;
    font-weight: 400;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
}

/* section-7 styles */
.section-7 {
    margin-top: 89px;
    text-align: center;
}

.section-7 a {
    color: rgba(0, 122, 194, 1);
    font-size: 20px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
    text-decoration-line: underline;
}

/* section-8 styles */
.section-8 {
    margin-top: 105px;
}

.section-8 .section-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;
    text-align: center;
}

.section-8 .img-box {
    margin-top: 63px;
}

.section-8 .img-box img {
    width: 100%;
    height: auto;
    display: block;
}


/*  */
/* section-9 styles */
.section-9 {
    padding: 43px 86px 32px;
    background: rgba(246, 247, 247, 1);
}

/* 顶部标题区域 */
.section-9 .section-title {
    color: rgba(0, 122, 194, 1);
    font-size: 30px;
    font-weight: 700;
    line-height: 36px;
    letter-spacing: 3px;
    text-align: center;
}

.section-9 .sub-title {
    margin-top: 20px;
}


/* 配件卡片容器（双列布局） */
.section-9 .parts-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 35px;
}

/* 单个配件卡片 */
.section-9 .parts-card {
    position: relative;
    filter: drop-shadow(0 6px 8px rgba(0, 0, 0, .15));
    border-top: 5px solid rgba(0, 122, 186, 1);
}

.section-9 .card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    padding-bottom: 40px;
    --cut: 40px;
    clip-path: polygon(0 0,
            100% 0,
            100% calc(100% - var(--cut)),
            calc(100% - var(--cut)) 100%,
            0 100%);
}

/* 卡片标题 */
.section-9 .card-title {
    color: rgba(92, 90, 90, 1);
    font-size: 30px;
    font-weight: 700;
    line-height: 36px;
    letter-spacing: 3px;
    text-align: center;
    margin-top: 32px;
}

/* 配件列表 */
.section-9 .parts-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    /* 选装配件自动分两列 */
    gap: 12px;
    color: #555;
    font-size: 14px;
    margin-top: 16px;
}

/* 标准配件列表（单列） */
.section-9 .parts-list.single-col {
    grid-template-columns: 1fr;
}

.section-9 .parts-list li {
    /*list-style: square;*/
    position: relative;
    /*padding-left: 26px;*/
    color: rgba(92, 90, 90, 1);

    font-size: 20px;
    font-weight: 350;
    line-height: 40px;
    letter-spacing: 0px;
    text-align: left;
}
.section-9 .parts-list li p{margin-left:12px}
/* 列表项前的方块符号 */
.section-9 .parts-list li .square-mark::before {
    content: " ";
    position: absolute;
    width: 10px;
    height: 10px;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(92, 90, 90, 1);

}

/* section-10 styles */

.section-10 {
    margin-top: 105px;
}

.section-10 .section-title {
    color: rgba(92, 90, 90, 1);
    /*font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;*/
    text-align: center;
}

.section-10 .section-desc {
    color: rgba(92, 90, 90, 1);

    font-size: 30px;
    font-weight: 400;
    line-height: 50px;
    letter-spacing: 0px;
    text-align: left;
    margin-top: 55px;
}

.section-10 .app-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 33px;
}

.section-10 .app-card {
    display: flex;
    flex-direction: column;
    border-radius: 4px;
    overflow: hidden;
}

.section-10 .app-img {
    width: 100%;
    /* height: 200px; */
    object-fit: cover;
}

.section-10 .app-tag {
    background-color:#007ac2;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    text-align: center;
    --cut: 10px;
    clip-path: polygon(0 0,
            100% 0,
            100% calc(100% - var(--cut)),
            calc(100% - var(--cut)) 100%,
            0 100%);

}

/* section-11 styles */
.section-11 {
    margin-top: 40px;
}

.section-11 img {
    width: 100%;
    height: auto;
    display: block;
}

.section-11 .tips {
    margin-top: 40px;
    color: rgba(92, 90, 90, 1);
    font-size: 20px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: center;
}

/* about-us styles */
.about-us {
    /*margin-top: 110px;margin-bottom: 50px;*/
}

.about-us .section-title {
  color: rgba(92, 90, 90, 1);

    /* 
 font-size: 40px;
    font-weight: 700;
    line-height: 48px;
    letter-spacing: 0px;*/
    text-align: center;
}

.about-us .group-desc {
    color: rgba(92, 90, 90, 1);

    font-size: 30px;
    font-weight: 400;
    line-height: 50px;
    letter-spacing: 0px;
    text-align: left;
    margin-top: 55px;
}



/* 蓝色横幅区域 */
.about-us .banner {
    margin-top: 30px;
}

.about-us .banner img {
    width: 100%;
    height: auto;
    display: block;
}

/* 咨询热线区域 */
.about-us .contact-section {
    text-align: center;
    padding: 24px 0;
    border-top: 2px solid #0066cc;
}

.about-us .card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 40px;
}

.about-us .contact-icon {
    width: 108px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 41px;

}

.about-us .contact-title {
    color: rgba(92, 90, 90, 1);
    font-size: 30px;
    font-weight: 700;
    line-height: 36px;
    margin-top: 5px;
    ;
}

.about-us .contact-phone {
    color: rgba(92, 90, 90, 1);
    font-size: 38px;
    font-weight: 700;
    line-height: 46px;
    margin-top: 10px;
}

.about-us .contact-desc {
    color: rgba(92, 90, 90, 1);

    font-size: 30px;
    font-weight: 400;
    line-height: 36px;
    margin-top: 20px;
}


/* contact-us styles */
.contact-us {
    margin-top: 170px;
    background-color: #f9f9f9;
    padding: 70px 120px;
}

.contact-us .form-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
}

.contact-us .section-title {
    font-size: 38px;
    font-weight: bold;
    color: rgba(92, 90, 90, 1);
    margin-bottom: 12px;
    text-align: center;
}

.contact-us .title-line {
    width: 380px;
    height: 2px;
    background-color: rgba(0, 122, 194, 1);
    ;
    margin: 0 auto 24px;
    position: relative;
}

.contact-us .title-line::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background-color: #0066cc;
}

.contact-us .contact-desc {
    font-size: 22px;
    color: rgba(92, 90, 90, 1);
    text-align: center;
}

.contact-us a {
    color: #007BE6;
    text-decoration: none;
}

.contact-us .contact-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-us .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.contact-us .form-group {
    width: 100%;
    font-size: 22px;
}

.contact-us .form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    outline: none;
}

.contact-us .form-group input:focus,
.contact-us .form-group select:focus,
.contact-us .form-group textarea:focus {
    border-color: #007BE6;
    box-shadow: 0 0 4px rgba(0, 123, 230, 0.2);
}

.contact-us .full-width {
    grid-column: 1 / -1;
}

.contact-us .submit-form {
    font-size: 22px;
}

.contact-us .submit-btn {
    padding: 12px;
    font-size: 16px;
    color: #fff;
    background: #007BE6;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s;
}

.contact-us .submit-btn:hover {
    background: #005CAE;
}


.mm{display:none!important}
/*.wrapper h2{font-size:40px!important}*/
/*.wrapper p{font-size:20px!important;line-height:40px!important}*/
/* 响应式：小屏幕（≤768px）改为1列 */
@media (max-width: 768px) {
   
    .section-9 .parts-list li{
        padding-left:0;font-size: 16px;
    line-height: 26px;}
    .section-5 .section-item{padding:0}
    .section-9{padding:5px}
    .wrapper {
        width: 100%;
        box-sizing: border-box;
        /*padding-left: 20px;*/
        /*padding-right: 20px;*/
    }
   .mm{display:block!important}
   .pc{display:none!important}
    .section-2 .img-box .desktop-img {
        display: none;
    }
    .section-2 .img-box .mobile-img {
        display: block;
    }

    .section-5 .section-item {
        /* grid-template-columns: 1fr; */
        flex-direction: column-reverse;
    }

    .section-5 .section-item.reverse {
        flex-direction: column-reverse;
    }

    .section-5 .group {
        border-top: 7px solid rgba(0, 122, 186, 1);
        filter: drop-shadow(0 6px 8px rgba(0, 0, 0, .15));
    }

    .section-5 .group .tit {
        background-color: #fff;
        --cut: 20px;
        clip-path: polygon(0 0,
                100% 0,
                100% calc(100% - var(--cut)),
                calc(100% - var(--cut)) 100%,
                0 100%);
    }

    .section-5 .group .bar {
        display: none;
    }

    .section-5 .tech-grid {
        grid-template-columns: 1fr;
    }

    .section-6 .tech-grid {
        grid-template-columns: 1fr;
    }


    .section-9 .parts-container {
        grid-template-columns: 1fr;
    }

    .contact-us .form-row {
        grid-template-columns: 1fr;
    }
}