/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', sans-serif;
    scroll-behavior: smooth;
}
body {
    background-color: #0b1224;
    color: #333;
    line-height: 1.6;
    width: 100%;
    overflow-x: hidden;
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    vertical-align: middle;
}
.section {
    padding: 80px 0;
    width: 100%;
    opacity: 0;
    transform: translateY(30px);
    /* 优化动画曲线更丝滑，提示浏览器优化 */
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
}
.section.show {
    opacity: 1;
    transform: translateY(0);
}
.section-title {
    text-align: center;
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 32px;
    color: #fff;
    margin-bottom: 10px;
    position: relative;
}
.section-title h2::after {
    content: '';
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #00aaff, #0066ff);
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 3px;
}
.section-title p {
    color: #d0d8e8;
    font-size: 16px;
    margin-top: 10px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, #0d1b35 0%, #1a2946 100%);
    z-index: 999;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 170, 255, 0.12);
    border-bottom: 1px solid rgba(0, 170, 255, 0.15);
}
.header.sticky {
    background: linear-gradient(135deg, #0a1428 0%, #0d1b35 100%);
    box-shadow: 0 5px 25px rgba(0,170,255,0.15);
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 20px;
}
.header .nav {
    display: flex;
    align-items: center;
}
.menu-toggle {
    display: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}
.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(90deg, #00aaff, #0066ff, #ffffff, #00aaff, #0066ff);
    background-size: 300% 100%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-fill-color: transparent;
    animation: logoGradient 4s ease-in-out infinite;
}

@keyframes logoGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
.logo i {
    color: #00aaff;
    margin-right: 10px;
    font-size: 28px;
    animation: rotateIcon 3s linear infinite;
}
@keyframes rotateIcon {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.nav-menu {
    display: flex;
}
.nav-menu > li {
    position: relative;
    margin-left: 22px;
}
.nav-menu .dropdown > a .fas.fa-angle-down {
    display: inline-block !important;
    opacity: 1 !important;
    visibility: visible !important;
    font-family: "Font Awesome 6 Free" !important;
    font-weight: 900 !important;
    width: 14px;
    text-align: right;
}
.nav-menu > li > a {
    color: #e0e6f2;
    font-size: 18px;
    font-weight: 700;
    padding: 10px 0;
    display: inline-block;
    transition: all 0.3s ease;
    position: relative;
}
.nav-menu > li > a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00aaff, #0066ff);
    transition: all 0.3s ease;
}
.nav-menu > li > a:hover::before,
.nav-menu > li > a.active::before {
    width: 100%;
}
.nav-menu > li > a:hover,
.nav-menu > li > a.active {
    color: #00aaff;
    transform: translateY(-3px);
}
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 180px;
    background: #111d36;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all 0.3s ease;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    border: 1px solid rgba(0,170,255,0.2);
}
.dropdown:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.submenu li a {
    color: #e0e6f2;
    padding: 12px 20px;
    display: block;
    transition: all 0.3s ease;
}
.submenu li a:hover {
    background: #00aaff;
    color: #fff;
    padding-left: 28px;
}

/* 轮播图 */
.banner {
    margin-top: 80px;
    position: relative;
    overflow: hidden;
    height: 600px;
    width: 100%;
}
.banner-slider {
    height: 100%;
    width: 100%;
    position: relative;
}
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.2s ease;
}
.slide.active {
    opacity: 1;
}
.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1);
    transition: transform 0s;
}
.slide.active img {
    animation: zoomImg 12s ease-out forwards;
}
.slide:not(.active) img {
    transform: scale(1.08);
}
@keyframes zoomImg {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}
.slide-text {
    position: absolute;
    top: 78%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
    opacity: 0;
    transition: all 1.2s ease 0.3s;
}
.slide.active .slide-text {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}
.slide-text h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 3px 15px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateX(-60px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.5s;
}
.slide-text p {
    font-size: 20px;
    text-shadow: 0 3px 15px rgba(0,0,0,0.5);
    opacity: 0;
    transform: translateX(60px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.7s;
}
.slide.active .slide-text h2 {
    opacity: 1;
    transform: translateX(0);
}
.slide.active .slide-text p {
    opacity: 1;
    transform: translateX(0);
}
.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
}
.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.5);
    margin: 0 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.dot.active {
    background: linear-gradient(90deg, #00aaff, #0066ff);
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(0,170,255,0.5);
}

/* 产品中心 */
.product {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    position: relative;
    overflow: hidden;
}
.product::before {
    content: '\f3ed';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 20px;
    left: 8%;
    font-size: 180px;
    color: rgba(0, 170, 255, 0.05);
    z-index: 1;
}
.product-slider {
    position: relative;
}
.product-group {
    display: none;
    opacity: 0;
    transform: rotateY(20deg) scale(0.9);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    min-height: 550px;
    height: 550px;
    will-change: opacity, transform;
}
.product-group.active {
    display: block;
    opacity: 1;
    transform: rotateY(0deg) scale(1);
}
.product-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.product-item {
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    text-align: center;
}
.product-item:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 15px 35px rgba(0,170,255,0.25);
}
.product-item a {
    display: block;
    width: 100%;
    background-color: #fff;
}
.product-item img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    background-color: #fff;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    display: block;
    will-change: transform;
}
.product-item:hover img {
    transform: scale(1.12);
}
.product-name {
    background-color: #fff;
    padding: 15px;
    font-size: 16px;
    color: #333;
    font-weight: 500;
    display: block;
    border-top: 1px solid #f0f0f0;
}

/* 解决方案 */
.solutions {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    position: relative;
    overflow: hidden;
}
.solutions::before {
    content: '\f559';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    bottom: 20px;
    right: 8%;
    font-size: 180px;
    color: rgba(0, 170, 255, 0.05);
    z-index: 1;
}
.solution-wrap {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 10px 0;
}
.solution-scroll {
    display: flex;
    gap: 30px;
    width: max-content;
}
.solution-item {
    min-width: 380px;
    flex-shrink: 0;
    text-align: center;
    transition: all 0.35s ease;
    border-radius: 12px;
}
.solution-item:hover {
    transform: translateY(-8px);
}
.solution-item a {
    display: block;
    width: 100%;
    color: inherit;
    text-decoration: none;
}
.solution-item img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 15px;
    transition: 0.4s ease;
    border: 2px solid transparent;
}
.solution-item:hover img {
    transform: scale(1.04);
    border-color: #00aaff;
    filter: brightness(1.12);
}
.solution-item h4 {
    font-size: 16px;
    color: #fff;
    transition: 0.3s ease;
    margin-top: 15px;
}
.solution-item:hover h4 {
    color: #00aaff;
}

/* 经典案例 */
.case {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    position: relative;
    overflow: hidden;
}
.case::before {
    content: '\f0b1';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 20px;
    right: 8%;
    font-size: 180px;
    color: rgba(0, 170, 255, 0.05);
    z-index: 1;
}
.case-page {
    display: none;
}
.case-page.active {
    display: block;
}
.case-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 50px;
}
.case-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: all 0.4s ease;
}
.case-item:hover {
    transform: translateY(-8px);
}
.case-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
}
.case-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    color: #fff;
}
.case-name {
    font-size: 18px;
    font-weight: 500;
}
.case-pagination {
    text-align: center;
    margin: 30px 0;
}
.case-pagination button {
    padding: 10px 25px;
    border: 1px solid #00aaff;
    background: #fff;
    color: #00aaff;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0 10px;
}
.case-pagination button:hover {
    background: #00aaff;
    color: #fff;
}

/* 新版经典案例展示样式：第一行左侧大图+右侧文字，第二行4小图轮播 */
.case-showcase {
    width: 100%;
}
/* 第一行 */
.case-main-row {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
    height: 420px;
}
.case-main-img {
    flex: 2;
    height: 420px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(0,170,255,0.15);
}
.case-main-img a {
    display: block;
    width: 100%;
    height: 100%;
}
.case-main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.case-main-img:hover img {
    transform: scale(1.08);
}
.case-main-info {
    flex: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 35px 30px;
    border: 1px solid rgba(0,170,255,0.15);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.case-main-info h3 {
    font-size: 30px;
    color: #00aaff;
    margin-bottom: 20px;
}
.case-main-info p {
    color: #d0d8e8;
    line-height: 1.9;
    font-size: 16px;
    margin-bottom: 25px;
}
.case-main-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
}
.case-main-meta span {
    color: #a8b8d0;
    font-size: 15px;
}
.case-main-meta i {
    color: #00aaff;
    margin-right: 8px;
}
.case-detail-btn {
    display: inline-block;
    align-self: flex-start;
    padding: 12px 32px;
    background: linear-gradient(90deg, #0066ff, #00aaff);
    color: #fff;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.case-detail-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,170,255,0.3);
}
/* 第二行 - 固定只显示4张小图，滑动轮播切换 */
.case-thumbs-row {
    width: 100%;
    height: 135px;
    overflow: hidden;
    position: relative;
    border-radius: 8px;
    background: rgba(255,255,255,0.02);
}
.case-thumbs-track {
    display: flex;
    gap: 15px;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}
.case-thumb-item {
    width: calc((100% - 45px) / 4);
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    opacity: 0.6;
    transition: all 0.4s ease;
}
.case-thumb-item:hover {
    opacity: 0.9;
}
.case-thumb-item.active {
    border-color: #00aaff;
    opacity: 1;
    box-shadow: 0 0 20px rgba(0,170,255,0.4);
}
.case-thumb-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}
/* 响应式适配 - 移动端统一第一排整体高度，切换案例保持一致 */
@media (max-width: 992px) {
    .case-showcase {
        width: 100%;
    }
    .case-main-row {
        display: flex;
        flex-direction: column;
        gap: 0;
        /* 🔥 给整个第一排设置固定总高度，切换时整体高度保持不变 */
        height: 760px !important;
        min-height: 760px !important;
        margin-bottom: 20px;
    }
    /* 🔥 强制第一排大图固定高度，不管切换哪个案例都保持一致 */
    .case-main-img {
        width: 100% !important;
        height: 320px !important;
        min-height: 320px !important;
        max-height: 320px !important;
        flex-shrink: 0;
        border-radius: 12px;
        overflow: hidden;
    }
    .case-main-img a {
        display: block;
        width: 100% !important;
        height: 100% !important;
    }
    .case-main-img img {
        width: 100% !important;
        height: 100% !important;
        display: block !important;
        object-fit: cover !important;
        object-position: center !important;
        background-color: rgba(255,255,255,0.05);
    }
    /* 🔥 介绍信息也固定高度，保证总高度完全一致 */
    .case-main-info {
        width: 100% !important;
        height: 420px !important;
        min-height: 420px !important;
        max-height: 420px !important;
        margin-top: 15px !important;
        flex-shrink: 0;
        box-sizing: border-box;
        overflow-y: auto;
        /* 隐藏滚动条但保留滚动功能 */
        scrollbar-width: none;
    }
    .case-main-info::-webkit-scrollbar {
        display: none;
    }
    /* 第二行小图容器固定高度 */
    .case-thumbs-row {
        width: 100%;
        height: 100px !important;
        min-height: 100px !important;
        overflow: hidden;
        flex-shrink: 0;
    }
    /* 平板及以下：一张一张整屏切换，每张占满宽度 */
    .case-thumb-item {
        width: 100% !important;
        height: 100px !important;
    }
    .case-thumb-item img {
        height: 85px !important;
        object-fit: cover;
    }
}
@media (max-width: 576px) {
    /* 🔥 更小屏幕重新计算总高度，保持一致 */
    .case-main-row {
        height: 730px !important;
        min-height: 730px !important;
    }
    /* 更小屏幕调整高度，保持一致 */
    .case-main-img {
        height: 260px !important;
        min-height: 260px !important;
        max-height: 260px !important;
    }
    .case-main-img img {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
    }
    .case-main-info {
        height: 440px !important;
        min-height: 440px !important;
        max-height: 440px !important;
        overflow-y: auto;
        scrollbar-width: none;
    }
    .case-main-info::-webkit-scrollbar {
        display: none;
    }
    /* 移动端：整屏切换，每张占满整屏宽度，一次只显示一张 */
    .case-thumb-item {
        width: 100% !important;
        height: 100px !important;
    }
    .case-thumbs-row {
        height: 100px !important;
        min-height: 100px !important;
    }
}

/* 关于我们 */
.about {
    background: linear-gradient(135deg, #0b1224, #121a2f);
    position: relative;
    overflow: hidden;
}
.about::before {
    content: '\f1ad';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    bottom: -20px;
    left: 10%;
    font-size: 200px;
    color: rgba(0, 170, 255, 0.06);
    z-index: 1;
}
.about-wrap {
    display: flex;
    align-items: center;
    gap: 60px;
    color: #fff;
    opacity: 0;
}
.about.section.show .about-wrap {
    opacity: 1;
}
.about-img {
    flex: 1;
    overflow: hidden;
    border-radius: 12px;
    transform: translateX(-80px);
    opacity: 0;
    transition: all 2s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.about.section.show .about-img {
    transform: translateX(0);
    opacity: 1;
}
.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.about-img:hover img {
    transform: scale(1.05);
}
.about-content {
    flex: 1;
    padding: 20px 0;
    transform: translateX(80px);
    opacity: 0;
    transition: all 2s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.about.section.show .about-content {
    transform: translateX(0);
    opacity: 1;
}
.about-content h3 {
    font-size: 24px;
    color: #ffffff;
    margin-bottom: 20px;
    font-weight: bold;
}
.about-content p {
    color: #d0d8e8;
    line-height: 1.8;
    margin-bottom: 15px;
}
.about-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    background: linear-gradient(90deg, #0066ff, #00aaff);
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.about-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 170, 255, 0.2);
}

/* 悬浮客服 */
.float-service {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9999;
}
.service-btn {
    width: 50px;
    height: 50px;
    background: linear-gradient(90deg, #00aaff, #0066ff);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 3px 15px rgba(0,170,255,0.3);
    animation: servicePulse 2s infinite;
}
@keyframes servicePulse {
    0% { box-shadow: 0 0 0 0 rgba(0,170,255,0.5); }
    70% { box-shadow: 0 0 0 15px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}
.service-panel {
    position: absolute;
    right: 60px;
    top: 0;
    width: 200px;
    background-color: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    transform: translateX(20px);
}
.float-service:hover .service-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.service-item {
    text-align: center;
    margin-bottom: 15px;
}
.service-item i {
    font-size: 24px;
    color: #00aaff;
    margin-bottom: 8px;
}
.service-item img {
    width: 100px;
    margin: 10px 0;
}

/* 底部 */
.footer {
    background: linear-gradient(135deg, #0a1428 0%, #0d1b35 100%);
    color: #d0d8e8;
    padding: 60px 0 0;
    border-top: 1px solid rgba(0,170,255,0.15);
    box-shadow: 0 -4px 15px rgba(0,170,255,0.08);
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}
.footer.animate {
    opacity: 1;
    transform: translateY(0);
}
.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #444;
}
.footer-about, .footer-links, .footer-contact {
    flex: 1;
    min-width: 250px;
}
.footer h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #00aaff;
    position: relative;
    padding-bottom: 10px;
}
.footer h3::after {
    content: '';
    width: 40px;
    height: 2px;
    background: #00aaff;
    position: absolute;
    bottom: 0;
    left: 0;
}
.footer p, .footer a {
    color: #d0d8e8;
    line-height: 1.8;
    transition: all 0.3s ease;
}
.footer a:hover {
    color: #00aaff;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-contact p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}
.footer-contact i {
    color: #00aaff;
    margin-right: 10px;
    width: 20px;
    text-align: center;
}
.footer-bottom {
    padding: 20px 0;
    text-align: center;
}
.copyright {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    color: #ccc;
}
.copyright img {
    width: 40px;
    height: 40px;
}

/* 响应式 */
@media (max-width: 1200px) {
    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: rgba(17, 29, 54, 0.98);
        flex-direction: column;
        padding: 30px;
        transition: all 0.3s ease;
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-menu > li {
        margin: 0 0 20px 0;
    }
    .menu-toggle {
        display: block;
    }
    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: transparent;
        display: none;
    }
    .dropdown.active .submenu {
        display: block;
    }
    .banner {
        height: 400px;
    }
    .slide-text {
        top: 65%;
        width: 90%;
    }
    .slide-text h2 {
        font-size: 28px;
        margin-bottom: 10px;
    }
    .slide-text p {
        font-size: 16px;
    }
    .case-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-wrap {
        flex-direction: column;
        gap: 40px;
    }
}
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    .product-list {
        grid-template-columns: 1fr;
    }
    .case-list {
        grid-template-columns: 1fr;
    }
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
}
/* ======================
   炫酷标题飞入动画（全站通用）
   优化后更丝滑流畅
====================== */
.section-title {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
}
.section-title h2 {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) 0.1s;
    will-change: opacity, transform;
}
.section-title p {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s;
    will-change: opacity, transform;
}
.section-title::after {
    opacity: 0;
    width: 0 !important;
    transition: all 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s;
    will-change: opacity, width;
}
/* 激活 → 飞入效果 */
.section-title.active {
    opacity: 1;
    transform: translateY(0) scale(1);
}
.section-title.active h2 {
    opacity: 1;
    transform: translateX(0);
}
.section-title.active p {
    opacity: 1;
    transform: translateX(0);
}
.section-title.active::after {
    opacity: 1;
    width: 60px !important;
}
/* 新闻资讯模块样式（与全站统一） */
.news-section {
    padding: 80px 0;
}
.news-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.05);
    transition: 0.3s;
    margin-bottom: 30px;
}
.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.news-img img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.news-content {
    padding: 25px;
}
.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    line-height: 1.5;
}
.news-content h3 a {
    color: #333;
    text-decoration: none;
}
.news-content h3 a:hover {
    color: #00aaff;
}
.news-time {
    font-size: 13px;
    color: #999;
    margin-bottom: 10px;
}
.news-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}
/* 资质证书 一行4个 同步3D翻转 */
.cert-group-wrap {
    width: 100%;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: center;
}
.cert-group-box {
    position: relative;
    width: 100%;
    max-width: 1100px;
    height: 160px;
    margin: 0 auto;
    perspective: 1200px;
}
.cert-group {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    gap: 20px;
    justify-content: center;
    opacity: 0;
    transform: rotateY(-90deg);
    transition: transform 1.2s ease, opacity 1.2s ease;
}
.cert-group.active {
    opacity: 1;
    transform: rotateY(0deg);
}
.cert-item {
    width: 220px;
    height: 160px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    background: #fff;
}
.cert-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .cert-group {
        gap: 10px;
    }
    .cert-item {
        width: 140px;
        height: 95px;
    }
}

/* 无限滚动动画 */
@keyframes certScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 移动端 */
@media (max-width: 768px) {
    .cert-item {
        width: 160px;
        height: 120px;
    }
}

/* 资质证书 4个均分宽度 + 顺序3D翻转 + 鼠标放大 */
.cert-4inrow {
    width: 100%;
    display: flex;
    justify-content: center;
}
.cert-container {
    width: 100%;
    max-width: 1140px;
    display: flex;
    gap: 25px;
    perspective: 1800px;
}
.cert-item {
    flex: 1;
    height: 210px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 2s ease; /* 翻转动画 */
}

/* 🔥 修复：鼠标悬停放大（不影响翻转）*/
.cert-item:hover {
    transform: scale(1.08) !important;
    z-index: 999 !important;
    cursor: pointer;
}

.cert-img {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}
.cert-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

/* 图片内部放大 */
.cert-item:hover .cert-img img {
    transform: scale(1.05);
}

.cert-img.back {
    transform: rotateY(180deg);
}

/* 移动端 */
@media (max-width:768px) {
    .cert-container {
        flex-wrap: wrap;
        gap: 12px;
    }
    .cert-item {
        height: 130px;
    }
}

/* 产品中心：2行4个布局，加大行间距 */
.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: space-between;
    row-gap: 35px;
}
.product-item {
    width: calc(25% - 12px) !important;
}
/* 移动端产品适配 */
@media (max-width: 991px) {
    .product-item {
        width: calc(50% - 10px) !important;
    }
}
@media (max-width: 575px) {
    .product-item {
        width: 100% !important;
    }
}


/* ======================
   服务支持模块样式
====================== */
.support-section {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}
.bg-light {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}
.support-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.support-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 170, 255, 0.15);
    border-radius: 12px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
}
.support-item:hover {
    transform: translateY(-10px);
    background: rgba(0, 170, 255, 0.08);
    border-color: rgba(0, 170, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0, 170, 255, 0.2);
}
.support-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #00aaff, #0066ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
}
.support-item:hover .support-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 5px 20px rgba(0, 170, 255, 0.4);
}
.support-icon i {
    font-size: 32px;
    color: #fff;
}
.support-content h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 12px;
    font-weight: 600;
}
.support-content p {
    color: #d0d8e8;
    line-height: 1.7;
    font-size: 15px;
}

/* 服务支持响应式适配 */
@media (max-width: 992px) {
    .support-list {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 576px) {
    .support-list {
        grid-template-columns: 1fr;
    }
    .support-item {
        padding: 25px 20px;
    }
}

/* ======================
   在线商城页面样式
====================== */
.page-banner {
    margin-top: 80px;
    background: linear-gradient(135deg, #0066ff, #00aaff);
    padding: 60px 0;
    text-align: center;
}
.page-banner h1 {
    font-size: 42px;
    color: #fff;
    margin-bottom: 10px;
}
.page-banner p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

.shop-section {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}
.shop-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.shop-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 170, 255, 0.15);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.4s ease;
}
.shop-item:hover {
    transform: translateY(-10px);
    background: rgba(0, 170, 255, 0.08);
    border-color: rgba(0, 170, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0, 170, 255, 0.2);
}
.shop-img {
    position: relative;
    overflow: hidden;
    height: 260px;
}
.shop-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.shop-item:hover .shop-img img {
    transform: scale(1.1);
}
.shop-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.shop-badge.new {
    background: linear-gradient(135deg, #00aaff, #0066ff);
}
.shop-info {
    padding: 20px;
}
.shop-info h3 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 10px;
    font-weight: 600;
}
.shop-info p {
    color: #d0d8e8;
    font-size: 14px;
    margin-bottom: 15px;
}
.shop-price {
    margin-bottom: 15px;
}
.shop-price .current {
    font-size: 24px;
    color: #ff4757;
    font-weight: bold;
    margin-right: 10px;
}
.shop-price .original {
    font-size: 16px;
    color: #888;
    text-decoration: line-through;
}
.shop-btn {
    display: block;
    text-align: center;
    padding: 10px;
    background: linear-gradient(135deg, #00aaff, #0066ff);
    color: #fff;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}
.shop-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 170, 255, 0.3);
}

/* 优惠活动区块 */
.discount-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}
.discount-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 170, 255, 0.15);
    border-radius: 12px;
    overflow: hidden;
}
.discount-item.reverse {
    flex-direction: row-reverse;
}
.discount-content {
    flex: 1;
    padding: 40px;
}
.discount-tag {
    display: inline-block;
    background: linear-gradient(135deg, #00aaff, #0066ff);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 15px;
}
.discount-content h3 {
    font-size: 26px;
    color: #fff;
    margin-bottom: 15px;
}
.discount-content p {
    color: #d0d8e8;
    font-size: 16px;
    margin-bottom: 12px;
    line-height: 1.7;
}
.discount-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    background: linear-gradient(135deg, #00aaff, #0066ff);
    color: #fff;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}
.discount-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 170, 255, 0.3);
}
.discount-img {
    flex: 1;
    height: 300px;
}
.discount-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 购物说明 */
.shop-note {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}
.note-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.note-item i {
    font-size: 50px;
    color: #00aaff;
    margin-bottom: 20px;
}
.note-item h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 10px;
}
.note-item p {
    color: #d0d8e8;
    line-height: 1.7;
}

/* 在线商城响应式适配 */
@media (max-width: 1200px) {
    .shop-list {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 992px) {
    .discount-item,
    .discount-item.reverse {
        flex-direction: column;
    }
    .discount-content {
        padding: 30px;
        width: 100%;
    }
    .discount-img {
        width: 100%;
    }
    .note-list {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .shop-list {
        grid-template-columns: 1fr;
    }
    .note-list {
        grid-template-columns: 1fr;
    }
    .page-banner h1 {
        font-size: 32px;
    }
}