* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}

ul,
li {
    list-style: none;
    padding: 0;
    margin: 0;
}

html {
    scroll-behavior: smooth;
    scroll-behavior: auto;
}

a {
    color: inherit;
}

body {
    scroll-behavior: smooth;
    scroll-behavior: auto;
}

.container {
    max-width: 1530px;
    margin: 0 auto;

}

svg.icon {
    width: 1em;
    height: 1em;
    fill: currentColor;
    overflow: hidden;
    vertical-align: -0.1em;
}

.navbar {
    background: #ffffff;
    padding: 12px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .nav-link {
    color: #333333 !important;
    margin: 0 8px;
}

.navbar .nav-link:hover {
    color: #1a4b8c !important;
}

.navbar_box .collapse .nav-item {
    position: relative;
}

.navbar_box .navbar-brand {
    margin-bottom: 0;
    color: #1a4b8c;
    font-size: 24px;
    font-weight: bold;
}

.navbar_box .collapse .nav-item.active::after {
    content: "";
    width: 50%;
    height: 4px;
    background: #1a4b8c;
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
}

.navbar_box .phone_fr {
    font-size: 16px;
    padding: 8px 15px;
    border-radius: 8px;
    background-color: #1a4b8c;
    text-decoration: none;
    color: #ffffff;
}

.navbar_box .phone_fr p {
    margin: 0;
}

.banner-section {
    min-height: 400px;
    margin-top: 64px;
    padding: 45px 0;
    background: #1a4b8c;
    color: #ffffff;
    display: flex;
    align-items: center;
}

.banner-text h1 {
    font-size: clamp(28px, 5vw, 56px);
    font-weight: bold;
    margin-bottom: 16px;
}

.btn_group a {
    background-color: #d4af37;
    color: #ffffff;
    border: 1px solid #d4af37;
}

.btn_group a:hover {
    background-color: #ffffff;
    color: #d4af37;
}

.btn_group .btn_shop {
    background-color: transparent;
    border: 1px solid #ffffff;
    margin-left: 15px;
}

.banner-text .text {
    font-size: 20px;
    line-height: 28px;
}

.banner-text .tag {
    font-size: 16px;
    opacity: 0.9;
}

.banner-text .tel {
    font-size: 20px;
    margin: 10px 0;
}

.section-title {
    font-size: clamp(24px, 3vw, 30px);
    color: #1e293b;
    position: relative;
    padding-bottom: 15px;
    font-weight: 700;
    margin-bottom: 35px;
}

.section-title::after {
    content: "";
    width: 80px;
    height: 4px;
    background: #1a4b8c;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.product-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
}

.product-card img {
    width: 100%;
    height: 260px;
    object-fit: cover;
}

.product-card h4 {
    padding: 15px 15px 8px;
    font-size: 15px;
    text-align: center;
}

.product-card p {
    padding: 0 15px;
    color: #666;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}

.case-desc {
    text-align: center;
    font-size: 20px;
    color: #444;
    line-height: 1.8;
}

.newsSwiper {
    padding-bottom: 50px;
}

.news-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
}

.news-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.news-info {
    padding: 18px;
}

.news-info h5 {
    margin-bottom: 10px;
}

footer {
    background: #1e293b;
}

footer p {
    margin-bottom: 0;
    font-size: 15px;
}

footer .nav-link {
    color: #fff !important;
}

.advantage-card {
    position: relative;
    overflow: hidden;
    border: none;
    transition: all 0.4s ease;
    cursor: pointer;
    background: #fff;
    padding: 20px 0;
}

.advantage-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 15px 30px rgba(52, 152, 219, 0.25) !important;
}

.advantage-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(180deg, #1a4b8c, #2980b9);
    transition: width 0.4s ease;
}

.advantage-card:hover::before {
    width: 100%;
    opacity: 0.1;
}

.advantage-icon {
    width: 70px;
    height: 70px;
    line-height: 70px;
    margin: 0 auto 20px;
    font-size: 35px;
    color: #1a4b8c;
    border: 2px solid #1a4b8c;
    border-radius: 50%;
    transition: all 0.4s ease;
}

.advantage-card:hover .advantage-icon {
    background: #1a4b8c;
    color: #fff;
}

.advantage-card h4 {
    transition: color 0.3s ease;
}

.advantage-card:hover h4 {
    color: #2980b9;
}

.navbar_box .navbar-toggler {
    padding: 0;
    border: none;
    font-size: 25px;
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.menu-overlay.show {
    opacity: 1;
    visibility: visible;
}

.menu-sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background: #2c3e50;
    z-index: 99;
    padding-top: 70px;
    transition: all 0.35s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
}

.menu-sidebar.show {
    left: 0;
}

.menu-sidebar .nav-link {
    color: #fff !important;
    padding: 15px 25px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.menu-sidebar .nav-link:hover {
    background: #1a4b8c;
    color: #fff !important;
    padding-left: 30px;
}

.call-btn {
    width: 50px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    background: #1a4b8c;
    border-radius: 50%;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    display: none;
}


.call-btn a {
    color: #fff !important;
}

.contact-section {
    background-color: #1a4b8c;
}

.contact-section .section-title::after {
    background-color: #fff;
}

.contact-section .fs-4 {
    font-size: 20px !important;
    font-weight: bold;
}

.contact-section p {
    font-size: 18px;
    color: #fff;
}

.contact-section p .icon{
    font-size: 20px;
}

.contact-section p.phone {
    font-size: 24px;
}

.contact-section p a:hover {
    color: #d4af37;
}

.about-section .about_fl {
    padding-right: 20px;
}

.about-section .about_fr {
    padding-left: 90px;
}

/* 分站公司 美观样式 */
.branch-wrap {
    margin-top: 20px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.branch-title {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
    font-weight: 600;
}

.branch-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 24px;
}

.branch-list span a {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50px;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.branch-list span:hover a {
    background: #1a4b8c;
    color: #fff;
}

.wrap-box {
    width: 100%;
}

.title-main {
    font-size: 32px;
    color: #002699;
    margin-bottom: 30px;
    padding-left: 8px;
    border-left: 4px solid #0033cc;
}

.card-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 22px;
}


.item-card {
    background: #fff;
    padding: 26px 20px;
    border-radius: 12px;
    box-shadow: 0 3px 12px rgb(47 140 202 / 20%);
    border: 1px solid #e8eeff;
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s ease forwards;
}

.about-section .space-y .icon {
    color: #d4af37;
    margin-right: 5px;
    font-size: 20px;
}

.about-section .space-y li {
    font-size: 16px;
    color: #333333;
    line-height: 2;
    display: flex;
    align-items: center;
}

/*逐个延迟出现动画*/
.item-card:nth-child(1) {
    animation-delay: 0.1s;
}

.item-card:nth-child(2) {
    animation-delay: 0.25s;
}

.item-card:nth-child(3) {
    animation-delay: 0.4s;
}

.item-card:nth-child(4) {
    animation-delay: 0.55s;
}

.item-card:nth-child(5) {
    animation-delay: 0.7s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-label {
    font-size: 20px;
    font-weight: bold;
    color: #666;
    margin-bottom: 5px;
}

.card-value {
    font-size: 15px;
    color: #1a4b8c;
    /*数值滚动动画*/
    opacity: 0;
    animation: textShow 1s ease forwards 0.5s;
}

@keyframes textShow {
    from {
        opacity: 0;
        transform: translateX(-8px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/*hover上浮动效*/
.item-card:hover {
    transform: translateY(-6px);
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgb(47 140 202 / 40%);
}

/* PC端隐藏侧边栏 */
@media (min-width: 992px) {

    .navbar-toggler,
    .menu-overlay,
    .menu-sidebar {
        display: none !important;
    }


    .navbar_box .collapse {
        display: flex !important;
    }
}

@media (max-width: 992px) {

    .about-section .about_fl {
        padding-right:calc(var(--bs-gutter-x) * .5);
    }

    .about-section .about_fr {
        padding-left: calc(var(--bs-gutter-x) * .5);
    }
}

@media screen and (max-width: 768px) {
    .call-btn {
        display: flex;
    }
.case-desc{
    font-size: 14px;
}
    .section-title {
        font-size: 20px;
    }

    .about-section .space-y li {
        font-size: 14px;
    }

    .navbar_box .navbar-brand {
        font-size: 17px;
    }

    .navbar_box .phone_fr {
        font-size: 12px;
        padding: 5px 6px;
    }

    .navbar_box .phone_fr .icon {
        font-size: 14px;
    }

    .banner-section {
        margin-top: 58px;
        min-height: 320px;
    }

    .banner-text h1 {
        font-size: 20px;
        font-weight: bold;
    }

    .advantage-card h4 {
        font-size: 20px;
    }

    .advantage-back p {
        font-size: 14px;
    }

    .banner-text .tag {
        font-size: 14px;
    }

    .banner-text p {
        font-size: 14px !important;
    }

    .banner-text .btn {
        font-size: 14px;
        padding: 10px 15px;
    }

    .about-section h4 {
        font-size: 18px;
        font-weight: bold;
    }

    .about-section p {
        font-size: 14px !important;
    }

    .about-section .mt-3 {
        font-size: 16px;
        font-weight: bold;
    }

    .product-section h4 {
        font-size: 18px;
        font-weight: bold;
    }

    .product-section p {
        font-size: 14px !important;
    }

    .product-section .mt-3 {
        font-size: 16px;
        font-weight: bold;
    }
    .contact-section p{
        font-size: 14px;
    }
    .contact-section p.phone{
        font-size: 16px;
    }
    footer p{
        font-size: 14px;
    }
}