/*联系我们相关*/
body {
    background-color: #212121;
}
.slider-container {
    width: 1680px;
    height: 880px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}
.slider {
    width: 400%;
    height: 100%;
    display: flex;
    transition: transform 0.5s ease-in-out;
}
.slide {
    width: 25%;
    height: 100%;
}
.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.slider-buttons {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
}
.slider-button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background-color: #fff;
    cursor: pointer;
}
.slider-button.active {
    background-color: #f17d38;
}
.nav-bar0{
    background-color: #000;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    margin: 0 auto;
}
.nav-bar {
    background-color: #000;
    width: 1700px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    margin: 0 auto;
}
.nav-menu {
    display: flex;
    list-style: none;
    height: 60px;
    margin: 0;
    padding: 0;
}
.nav-menu li {
    width: 100px;
    height: 60px;
    line-height: 60px;
    text-align: center;
}
.nav-menu li a {
    display: block;
    color: white;
    text-decoration: none;
    width: 100px;
    height: 58px;
    padding: 0 15px;
}
.logo img {
    height: 40px;
}
.nav-menu li a:hover {
    color: #f17d38;
    transition: color 0.3s ease;
}
.dqli {
    color: #f17d38 !important;
    border-bottom: 2px solid #f17d38 !important;
}
.qiehuan{
    position: relative;
    top: 16%;
    width: 30px;
}
.product-container-lxwm {
    width: 1920px;
    height: 860px;
    display: flex;
    justify-content: space-around;
    padding: 0 0%;
    margin: 0 auto;
    flex-wrap: wrap;
}
.product-container-lxwm img {
    width: 100%;
    height: 631px;
}
.lxwm-jzhz {
    position: relative;
    top: -200px;
    width: 1040px;
    height: 450px;
}
.company-info {
    float: left;
    width: 45%;
    height: 390px;
    padding: 30px;
    background-color: #f1f4f5;
}
.company-info h3 {
    color: #212121;
    font-size: 24px;
    margin-bottom: 20px;
}
.company-info p:nth-child(2) {
    color: #f17d38;
    font-size: 28px;
    font-weight: 600;
}
.company-info p {
    color: #212121;
    line-height: 2;
    font-size: 16px;
}
.contact-form {
    float: right;
    width: 45%;
    margin: 0 auto;
    padding: 22px;
    background-color: #333;
}
.contact-form h3 {
    color: #f17d38;
    font-size: 24px;
    margin-bottom: 20px;
}
.form-group {
    width: 80%;
    margin: 0 auto;
    margin-bottom: 15px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: transparent;
    color: #fff;
}
.form-group textarea {
    height: 100px;
    resize: none;
}
.submit-btn {
    background: #f17d38;
    color: #fff;
    border: none;
    padding: 10px 30px;
    border-radius: 4px;
    cursor: pointer;
}
.submit-btn:hover {
    background: #e56a25;
}
/*企业介绍相关*/
.about-container {
    width: 1700px;
    margin: 0px auto 0 auto;
    display: flex;
    border-radius: 10px;
    overflow: hidden;
    min-height: 420px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}
.about-text {
    flex: 1.2;
    padding: 80px 60px 60px 80px;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.about-text h2 {
    font-size: 38px;
    margin-bottom: 30px;
    color: #fff;
    letter-spacing: 2px;
}
.about-text p {
    font-size: 18px;
    line-height: 2;
    color: #dbdbdb;
    margin-bottom: 18px;
}
.about-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #232323;
}
.about-image img {
    width: 840px;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.18);
}
@media (max-width: 1100px) {
    .about-container {
        flex-direction: column;
        width: 98vw;
    }
    .about-text, .about-image {
        padding: 30px;
    }
    .about-image img {
        width: 90vw;
    }
}
/*产品介绍*/
.focus-box {
    width: 90%;
    margin: 80px auto 40px auto;
    background: #232323;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    padding: 40px 0 30px 0;
    text-align: center;
}
.focus-title {
    font-size: 32px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 80px;
    letter-spacing: 2px;
}
.focus-products {
    display: flex;
    justify-content: center;
    gap: 40px 100px;
    flex-wrap: wrap;
}
.focus-product-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 40%;
}
.focus-product-item img {
    width: 100%;
    object-fit: contain;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    margin-bottom: 18px;
}
.focus-product-item p {
    color: #fff;
    font-size: 30px;
    margin: 0;
    font-weight: 500;
    letter-spacing: 1px;
}
@media (max-width: 900px) {
    .focus-box {
        width: 98%;
        padding: 20px 0 10px 0;
    }
    .focus-products {
        flex-direction: column;
        gap: 30px;
    }
    .focus-product-item img {
        width: 120px;
        height: 120px;
    }
}
/*发展历程*/
.timeline-section {
    width: 90%;
    margin: 60px auto 0 auto;
    background: #232323;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    padding: 40px 0 50px 0;
}
.timeline-title {
    text-align: center;
    font-size: 32px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 80px;
    letter-spacing: 2px;
}
.timeline-progress {
    position: relative;
    width: 80%;
    height: 8px;
    border-radius: 4px;
    margin: 0 auto 60px auto;
}
.timeline-progress-bar {
    position: absolute;
    height: 100%;
    background: #f17d38;
    border-radius: 4px;
    transition: width 0.5s;
    top: -15px;
    width: 100%;
    z-index: 1;
}
.timeline-steps {
    position: absolute;
    width: 100%;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    z-index: 2;
}
.timeline-step {
    position: relative;
    text-align: center;
    flex: 1;
}
.timeline-dot {
    width: 22px;
    height: 22px;
    background: #fff;
    border: 4px solid #f17d38;
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.timeline-year {
    margin-top: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: 500;
}
.timeline-boxes {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    width: 80%;
    margin: 40px auto 0 auto;
    flex-wrap: wrap;
}
.timeline-box {
    background: #313131;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.10);
    padding: 30px 28px;
    flex: 1;
    min-width: 240px;
    max-width: 320px;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.timeline-box h4 {
    color: #f17d38;
    font-size: 22px;
    margin-bottom: 12px;
}
.timeline-box p {
    font-size: 16px;
    color: #dbdbdb;
    line-height: 1.8;
    text-align: center;
}
@media (max-width: 1100px) {
    .timeline-section {
        width: 98vw;
        padding: 20px 0 30px 0;
    }
    .timeline-progress, .timeline-boxes {
        width: 96vw;
    }
    .timeline-boxes {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    .timeline-box {
        max-width: 98vw;
    }
}
.timeline-carousel-container {
    width: 80%;
    margin: 40px auto 0 auto;
}
.timeline-box {
    min-width: 220px;
    max-width: 320px;
    flex: 0 0 23%;
}
.timeline-carousel {
    padding: 20px;
    gap: 50px;
}
/*合作伙伴*/
.partner-title {
    text-align: center;
    font-size: 32px;
    color: #fff;
    margin-top: 40px;
    font-weight: bold;
    letter-spacing: 4px;
}
.product-container-hzhb {
    width: 1400px;
    display: flex;
    justify-content: space-around;
    padding: 50px 0%;
    margin: 0px auto 40px auto;
    flex-wrap: wrap;
}
.partner-item {
    width: 200px;
    height: 200px;
    margin: 50px 50px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    overflow: hidden;
}
.partner-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/*资质展示*/
.qualification-carousel-container {
    width: 1600px;
    margin:80px auto 120px auto;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.qualification-carousel-title {
    text-align: center;
    font-size: 32px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 100px;
    letter-spacing: 2px;
}
.qualification-carousel {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}
.qualification-btn {
    background: rgba(241,125,56,0.85);
    border: none;
    color: #fff;
    font-size: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    margin: 0 18px;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qualification-btn:hover {
    background: #e56a25;
}
.qualification-box {
    background: #232323;
    border-radius: 14px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.13);
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 18px;
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
    opacity: 0.7;
    width: 400px;
    height: 272px;
}
.qualification-box.center {
    width: 540px;
    height: 370px;
    z-index: 2;
    transform: scale(1.13);
    box-shadow: 0 4px 32px rgba(241,125,56,0.18);
    opacity: 1;
}
.qualification-box img {
    width: 100%;
    height: 80%;
    object-fit: contain;
}
.qualification-box .qualification-text {
    color: #fff;
    font-size: 20px;
    text-align: center;
    padding: 18px 10px 0 10px;
    font-weight: 500;
    letter-spacing: 1px;
}
@media (max-width: 1200px) {
    .qualification-carousel-container {
        width: 98vw;
    }
}
@media (max-width: 900px) {
    .qualification-carousel-container {
        width: 100vw;
    }
    .qualification-box, .qualification-box.center {
        width: 90vw;
        max-width: 340px;
        min-width: 180px;
        height: 260px;
    }
    .qualification-carousel {
        gap: 0;
    }
}