/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Arial', sans-serif;
}

/* 导航栏样*/
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar:hover {
    background: rgba(0, 0, 0, 0.7);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled .nav-links .nav-link {
    color: #333;
}

.navbar.scrolled .nav-links .nav-link:hover {
    color: #ffd700;
    background: rgba(0, 0, 0, 0.05);
}

.navbar.scrolled .nav-links .nav-link.active {
    color: #ffd700;
}

.navbar.scrolled .language-selector select {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.2);
    color: #333;
}

.navbar.scrolled .nav-links .dropdown-menu {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar.scrolled .nav-links .dropdown-item {
    color: #333;
}

.navbar.scrolled .nav-links .dropdown-item:hover {
    background: rgba(0, 0, 0, 0.05);
    color: #ffd700;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 55px;
}

.logo {
    display: flex;
    align-items: center;
    height: 100%;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: 2px;
}

.logo img {
    height: 48px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links .nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-links .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffd700;
}

.nav-links .nav-link.active {
    color: #ffd700;
    border-bottom: 2px solid #ffd700;
}

/* 下拉菜单样式 */
.nav-links .dropdown {
    position: relative;
}

.nav-links .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(0, 0, 0, 0.9);
    min-width: 280px;
    border-radius: 8px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-links .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-links .dropdown-item {
    display: block;
    padding: 10px 18px;
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.nav-links .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffd700;
}

.language-selector {
    margin-left: 20px;
}

.language-selector select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 6px 14px;
    border-radius: 5px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

.language-selector select:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.language-selector select option {
    background: #333;
    color: #fff;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 全屏轮播Banner */
.hero-slider {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

.slider-container {
    position: relative;
    height: 100%;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.2s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
    z-index: 10;
    animation: zoomIn 8s ease-in-out infinite;
}

@keyframes zoomIn {
    0% {
        background-size: 100% 100%;
    }
    100% {
        background-size: 115% 115%;
    }
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    max-width: 900px;
    padding: 0 30px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pageFadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-content-animate {
    animation: pageFadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.page-content-animate.delay-1 {
    animation-delay: 0.1s;
}

.page-content-animate.delay-2 {
    animation-delay: 0.2s;
}

.page-content-animate.delay-3 {
    animation-delay: 0.3s;
}

.page-content-animate.delay-4 {
    animation-delay: 0.4s;
}

.page-content-animate.delay-5 {
    animation-delay: 0.5s;
}

.slide-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1.2;
}

.slide-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.slide-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-block;
    padding: 15px 45px;
    background: #fff;
    color: #333;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    font-size: 16px;
    min-width: 150px;
    text-align: center;
}

.btn-primary:hover {
    background: #ffd700;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    display: inline-block;
    padding: 15px 45px;
    background: transparent;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid #fff;
    transition: all 0.3s ease;
    font-size: 16px;
    min-width: 150px;
    text-align: center;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffd700;
    color: #ffd700;
}

/* 轮播指示�?*/
.slider-indicators {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 20;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 20;
}

.indicator:hover,
.indicator.active {
    width: 30px;
    border-radius: 6px;
    background: #fff;
}

/* 左右切换按钮 */
.slider-prev,
.slider-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    font-size: 45px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-prev:hover,
.slider-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

.slider-prev {
    left: 30px;
}

.slider-next {
    right: 30px;
}

/* 产品展示橱窗�?*/
.products-showcase {
    padding: 80px 30px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.products-showcase.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 关于我们页面产品橱窗 */
.products-showcase.about-products {
    padding-top: 40px;
    padding-bottom: 60px;
    background: #f8f9fa;
    margin-top: 20px;
    border-top: 1px solid #eee;
    opacity: 1;
    transform: translateY(0);
}

.products-showcase .container {
    max-width: 1200px;
    margin: 0 auto;
}

.products-showcase .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.products-showcase .section-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.products-showcase .section-header p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

.product-intro-box {
    max-width: 950px;
    margin: 20px auto 0;
    padding: 0;
    position: relative;
    text-align: center;
}

.intro-paragraph {
    font-size: 15px;
    color: #555;
    line-height: 1.8;
    text-align: center;
    margin-bottom: 20px;
    padding: 0 20px;
}

.products-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    align-items: center;
    min-height: 70px;
}

.product-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 8px 18px;
    border-radius: 8px;
    transition: all 0.3s ease;
    animation: float 4s ease-in-out infinite;
    text-decoration: none;
    color: inherit;
}

.product-item:nth-child(1) { animation-delay: 0s; }
.product-item:nth-child(2) { animation-delay: 0.2s; }
.product-item:nth-child(3) { animation-delay: 0.4s; }
.product-item:nth-child(4) { animation-delay: 0.6s; }
.product-item:nth-child(5) { animation-delay: 0.8s; }
.product-item:nth-child(6) { animation-delay: 1s; }
.product-item:nth-child(7) { animation-delay: 1.2s; }
.product-item:nth-child(8) { animation-delay: 1.4s; }

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-8px) translateX(3px);
    }
    50% {
        transform: translateY(-3px) translateX(-3px);
    }
    75% {
        transform: translateY(-10px) translateX(2px);
    }
}

.product-item:hover {
    animation-play-state: paused;
    border-color: #4a90d9;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.15);
    transform: translateY(-5px) !important;
}

.product-item span {
    font-size: 14px;
    color: #333;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-card {
    background: #e8f4f8;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 1;
    transform: translateY(0);
    position: relative;
}

.product-card:nth-child(1) { transition-delay: 0.1s; }
.product-card:nth-child(2) { transition-delay: 0.2s; }
.product-card:nth-child(3) { transition-delay: 0.3s; }
.product-card:nth-child(4) { transition-delay: 0.4s; }

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(74, 144, 217, 0.2);
}

.product-info {
    padding: 20px 15px;
}

.product-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    text-align: center;
    margin: 0;
    line-height: 1.4;
}

.product-image-wrapper {
    padding: 0;
    overflow: hidden;
    position: relative;
    line-height: 0;
    font-size: 0;
}

.product-image-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid transparent;
    border-radius: 8px;
    transition: all 0.3s ease;
    pointer-events: none;
}

.product-card:hover .product-image-wrapper::before {
    border-color: #4a90d9;
}

.product-image-wrapper img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: block;
    vertical-align: bottom;
}

.product-card:hover .product-image-wrapper img {
    transform: scale(1.08);
}

.product-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 15px 20px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.product-card:hover .product-link {
    color: #4a90d9;
}

.product-link .arrow {
    width: 32px;
    height: 32px;
    background: #4a90d9;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 14px;
}

.product-card:hover .product-link .arrow {
    transform: translateX(5px);
}

/* 页面内容区域 */
.content {
    padding: 80px 30px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 页面区域样式 */
.page-section {
    padding: 0 30px 60px;
}

/* 联系我们页面样式 */
.contact-container {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 30px 1fr;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 30px;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 20px;
}

.contact-info {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 40px;
}

.contact-item {
    margin-bottom: 35px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e0e0e0;
}

.contact-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.contact-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    gap: 12px;
}

.contact-item h3 i {
    width: 40px;
    height: 40px;
    background: #4a90d9;
    color: #fff;
    border-radius: 50%;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    font-size: 18px;
}

.contact-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.contact-item p .whatsapp-link:hover {
    color: #1da851;
    transform: scale(1.15);
    display: inline-block;
}

.contact-form {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    outline: none;
    background: #fafafa;
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
    border-color: #4a90d9;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

.contact-form .form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .form-group input::placeholder,
.contact-form .form-group textarea::placeholder {
    color: #999;
}

.contact-form .btn-primary {
    width: 100%;
    margin-top: auto;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    background: #4a90d9;
    color: #fff;
    transition: all 0.3s ease;
}

.contact-form .btn-primary:hover {
    background: #3a80c9;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 217, 0.3);
}

.page-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.page-section .section-header h1 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.page-section .section-header .section-subtitle {
    font-size: 19px;
    color: #666;
    font-weight: 300;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.page-section .section-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
    color: #555;
    font-size: 18px;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.page-section .section-content p {
    margin-bottom: 20px;
    text-align: justify;
    text-indent: 2em;
}

.page-section .section-content .btn-primary {
    margin-top: 30px;
}

/* 产品页面Hero区域 */
.products-hero {
    position: relative;
    background: url('../images/products-hero.jpg') top/100% auto no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 55px;
    aspect-ratio: 1920 / 450;
}

.about-hero {
    position: relative;
    background: url('../images/hero-about.jpg') top/100% auto no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 55px;
    aspect-ratio: 1920 / 450;
}

.contact-hero {
    position: relative;
    background: url('../images/contact.jpg') top/100% auto no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 55px;
    aspect-ratio: 1920 / 450;
}

.rnd-hero {
    position: relative;
    background: url('../images/rnd-hero.jpg') top/100% auto no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 55px;
    aspect-ratio: 1920 / 450;
}

.products-hero .hero-overlay,
.contact-hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.products-hero .hero-overlay h1,
.about-hero .hero-overlay h1,
.contact-hero .hero-overlay h1 {
    color: #fff;
    font-size: 36px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 4px;
}

/* 面包屑导�?*/
.breadcrumb {
    background: #f5f5f5;
    padding: 15px 30px;
    border-bottom: 1px solid #eee;
}

.breadcrumb .container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-link {
    color: #4a90d9;
    text-decoration: none;
    font-size: 17px;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: #999;
    font-size: 17px;
}

.breadcrumb-current {
    color: #666;
    font-size: 17px;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 产品列表样式 */
.products-section {
    padding-top: 30px;
    padding-bottom: 60px;
    padding-left: 30px;
    padding-right: 30px;
}

.products-section .products-list {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 20px 1fr;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 20px;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.products-section .product-item {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 22px 28px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    min-height: 60px;
}

.products-section .product-item:hover {
    border-color: #4a90d9;
    background: #f8fcff;
    -ms-transform: translateX(5px);
    transform: translateX(5px);
    box-shadow: 0 4px 20px rgba(74, 144, 217, 0.15);
}

.products-section .product-item span {
    color: #333333;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.5;
}

.products-section .product-item:hover span {
    color: #4a90d9;
}

/* 响应式设�?*/
@media (max-width: 992px) {
    .page-section .section-header h1 {
        font-size: 36px;
    }

    .products-hero,
    .about-hero,
    .contact-hero {
        height: 320px;
    }

    .products-hero .hero-overlay h1,
    .about-hero .hero-overlay h1,
    .contact-hero .hero-overlay h1 {
        font-size: 36px;
    }
    
    .products-section .products-list {
        -ms-grid-columns: 1fr;
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        -ms-grid-columns: 1fr;
        grid-template-columns: 1fr;
    }
    
    .contact-info,
    .contact-form {
        padding: 30px 20px;
    }
}

@media (max-width: 576px) {
    .page-section .section-header h1 {
        font-size: 36px;
    }

    .page-section .section-header .section-subtitle {
        font-size: 16px;
    }

    .page-section .section-content {
        font-size: 15px;
    }

    .products-hero,
    .about-hero,
    .contact-hero {
        height: 270px;
    }

    .products-hero .hero-overlay h1,
    .about-hero .hero-overlay h1,
    .contact-hero .hero-overlay h1 {
        font-size: 36px;
    }

    .breadcrumb {
        padding: 12px 20px;
    }

    .breadcrumb-link,
    .breadcrumb-separator,
    .breadcrumb-current {
        font-size: 14px;
    }
}

/* 产品详情页面样式 */
.product-detail {
    max-width: 1200px;
    margin: 0 auto;
}

.product-detail .product-content {
    display: -ms-flexbox;
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    background: #fff;
    border: 1px solid #d0d0d0;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 
        inset 0 2px 3px rgba(255, 255, 255, 0.8),
        inset 0 -2px 3px rgba(0, 0, 0, 0.05),
        0 4px 8px rgba(0, 0, 0, 0.08);
    -ms-flex-align: stretch;
    align-items: stretch;
}

.product-detail .product-image {
    -ms-flex: 0 0 50%;
    flex: 0 0 50%;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    line-height: 0;
    font-size: 0;
    aspect-ratio: 1/1;
}

.product-detail .product-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.product-detail .product-info {
    -ms-flex: 1;
    flex: 1;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

.product-detail .product-info h2 {
    font-size: 27px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.product-detail .product-info p {
    font-size: 13px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 25px;
}

.product-detail .product-features {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 0;
}

.product-detail .product-features h3 {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    text-align: center;
}

.product-detail .product-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-detail .product-features li {
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    gap: 12px;
    color: #555;
    font-size: 13px;
}

.product-detail .product-features li:last-child {
    border-bottom: none;
}

.product-detail .product-features li i {
    color: #4a90d9;
    font-size: 15px;
}

.product-detail .consult-wrapper {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: start;
    justify-content: flex-start;
    padding-top: 14px;
    border-top: 1px solid #e5e7eb;
    margin-top: auto;
}

.product-detail .consult-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #4a90d9 0%, #357abd 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.product-detail .consult-button:hover {
    background: linear-gradient(135deg, #357abd 0%, #286090 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

.product-detail .product-specs {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 40px;
}

.product-detail .product-specs h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.product-detail .product-specs table {
    width: 100%;
    border-collapse: collapse;
}

.product-detail .product-specs th,
.product-detail .product-specs td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.product-detail .product-specs th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
    width: 40%;
}

.product-detail .product-specs td {
    color: #555;
}

.product-detail .product-specs tr:last-child th,
.product-detail .product-specs tr:last-child td {
    border-bottom: none;
}

/* 纯描述规格列*/
.product-detail .product-specs .spec-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-detail .product-specs .spec-list li {
    padding: 12px 15px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
    font-size: 14px;
    line-height: 1.6;
    position: relative;
    padding-left: 20px;
}

.product-detail .product-specs .spec-list li:last-child {
    border-bottom: none;
}

.product-detail .product-specs .spec-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #4a90d9;
}

.product-detail .product-applications {
    background: #4a90d9;
    color: #fff;
    padding: 35px;
    border-radius: 12px;
}

.product-detail .product-applications h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
}

.product-detail .product-applications p {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.95;
}

/* 产品详情响应式设�?*/
@media (max-width: 992px) {
    .product-detail .product-content {
        -ms-grid-columns: 1fr;
        grid-template-columns: 1fr;
    }
    
    .product-detail .product-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .product-detail .product-image img {
        height: 100%;
    }

    .product-detail .product-info h2 {
        font-size: 32px;
    }
}

@media (max-width: 576px) {
    .product-detail .product-image {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .product-detail .product-image img {
        height: 100%;
    }

    .product-detail .product-info h2 {
        font-size: 32px;
    }
    
    .product-detail .product-specs,
    .product-detail .product-applications {
        padding: 20px;
    }
    
    .product-detail .product-specs th,
    .product-detail .product-specs td {
        padding: 10px 12px;
        font-size: 14px;
    }
}

/* 企业资质展示区块样式 */
.credentials-header {
    text-align: center;
    margin-bottom: 20px;
}
.credentials-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    text-transform: uppercase;
    letter-spacing: 2px;
}
.company-credentials {
    padding: 0 30px;
    background: #f8f9fa;
    margin: 20px 0;
}

.company-credentials .container {
    max-width: 1200px;
    margin: 0 auto;
}

.company-credentials .section-header {
    text-align: center;
    margin-bottom: 30px;
}

.company-credentials .section-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.credentials-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.credentials-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.credential-item {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.credential-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(74, 144, 217, 0.15);
}

.credential-item i {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4a90d9, #3a80c9);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 20px;
}

.credential-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.credential-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 横向证书样式 */
.credential-horizontal img {
    width: 100%;
    height: 225px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 12px;
    background: #fafafa;
}

/* 竖向证书样式 */
.credential-vertical img {
    width: 100%;
    height: 100%;
    aspect-ratio: 9/16;
    object-fit: contain;
    border-radius: 8px;
    margin-bottom: 12px;
    background: #fafafa;
}

/* 经营理念区块样式 */
.company-philosophy {
    padding: 60px 30px;
    background: linear-gradient(135deg, #4a90d9, #3a80c9);
    margin: 20px 0;
}

.company-philosophy .container {
    max-width: 900px;
    margin: 0 auto;
}

.philosophy-content {
    text-align: center;
}

.philosophy-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.philosophy-content .philosophy-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    margin: 0;
}

.philosophy-image {
    margin-top: 30px;
    text-align: center;
    border-radius: 12px;
    overflow: hidden;
}

.philosophy-image img {
    max-width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: 12px;
}

/* 首页公司简介样�?*/
.company-intro {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 10px;
    text-align: center;
}

/* 页脚样式 */
.footer {
    background: #2c2c2c;
    color: #ccc;
    padding: 50px 30px;
    display: flex;
    justify-content: center;
}

.footer-container {
    max-width: 1420px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.footer-left {
    flex: 1;
    min-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 60px;
    height: 60px;
}

.footer-company-name {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
}

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

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #999;
}

.footer-contact-item i {
    color: #e74c3c;
    width: 18px;
}

.footer-center {
    flex: 2;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.footer-column {
    min-width: 120px;
    margin-bottom: 20px;
}

.footer-column-title {
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 1px solid #444;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: #999;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #e74c3c;
}

.footer-right {
    flex: 1;
    text-align: right;
    min-width: 250px;
}

.footer-qr {
    display: flex;
    justify-content: flex-end;
    gap: 20px;
    margin-bottom: 20px;
}

.qr-icon {
    width: 45px;
    height: 45px;
    background: #3a3a3a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.3s;
}

.qr-icon:hover {
    background: #e74c3c;
}

.footer-copyright {
    font-size: 12px;
    color: #666;
    line-height: 1.8;
}

.footer-copyright p {
    margin-bottom: 5px;
}

.footer-bottom {
    background: #1a1a1a;
    padding: 15px 30px;
    text-align: center;
    font-size: 12px;
    color: #555;
}

@media (max-width: 992px) {
    .footer-container {
        flex-direction: column;
    }
    
    .footer-left, .footer-right {
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-qr {
        justify-content: center;
    }
    
    .footer-center {
        justify-content: center;
    }
}

/* 响应式设�?*/
/* 产品展示橱窗区响应式设计 */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .products-showcase .section-header h2 {
        font-size: 32px;
    }

    .products-showcase .section-header p {
        font-size: 15px;
    }

    .product-intro-box {
        padding: 0;
        margin: 15px auto 0;
    }

    .intro-paragraph {
        font-size: 14px;
        line-height: 1.6;
    }

    .product-item {
        padding: 6px 14px;
        animation: none;
    }

    .product-item span {
        font-size: 13px;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.9);
        width: 250px;
        height: calc(100vh - 70px);
        padding: 30px;
        transition: right 0.3s ease;
    }

    .nav-links.active {
        right: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .slide-content h1 {
        font-size: 48px;
    }

    .slide-content p {
        font-size: 18px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 30px;
        font-size: 16px;
    }

    .slider-prev,
    .slider-next {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .slider-prev {
        left: 15px;
    }

    .slider-next {
        right: 15px;
    }
}

@media (max-width: 576px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .products-showcase {
        padding: 60px 20px;
    }

    .product-intro-box {
        padding: 0;
        margin: 10px auto 0;
    }

    .intro-paragraph {
        font-size: 13px;
        line-height: 1.6;
    }

    .product-item {
        padding: 5px 12px;
        animation: none;
    }

    .product-item span {
        font-size: 12px;
    }

    .products-showcase .section-header h2 {
        font-size: 32px;
    }

    .product-image-wrapper img {
        height: 150px;
    }

    .nav-container {
        padding: 0 20px;
    }

    .slide-content h1 {
        font-size: 48px;
    }

    .slide-content p {
        font-size: 18px;
        margin-bottom: 30px;
    }

    .slider-indicators {
        bottom: 30px;
    }

    .slide-buttons {
        flex-direction: column;
        align-items: center;
    }
}
.page-products .content {
    padding-top: 40px;
}
/* 产品展示布局样式 */
.products-layout {
    display: flex;
    gap: 40px;
    width: 100%;
    margin: 0 auto;
    padding-top: 20px;
    padding-bottom: 40px;
}

.products-sidebar {
    flex: 0 0 250px;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.products-sidebar h3 {
    color: #333;
    font-size: 16px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #4a90d9;
}

.category-list {
    list-style: none;
}

.category-list li {
    margin-bottom: 15px;
}

.category-list a {
    color: #555;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: block;
    padding: 10px 15px;
    border-radius: 5px;
}

.category-list a:hover {
    color: #4a90d9;
    background: #e8f4fc;
    padding-left: 20px;
}

.products-content {
    flex: 1;
}

.product-categories-grid {
    background: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.product-category-nav {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.category-nav-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.category-nav-item {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: visible;
    z-index: 1;
}

.category-nav-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    z-index: 10;
}

.category-name {
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    display: block;
    text-align: center;
    text-decoration: none;
}

.category-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
    padding: 15px;
    margin-top: 10px;
}

.category-nav-item:hover .category-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.category-dropdown a {
    display: block;
    color: #555;
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-size: 14px;
}

.category-dropdown a:hover {
    background: #f0f4f8;
    color: #4a90d9;
    padding-left: 20px;
}

/* ����ͼƬ��ʽ */
.credential-item img {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
    transition: transform 0.3s ease;
}

.credential-item img:hover {
    transform: scale(1.05);
}

/* ��Ӧʽ���?*/
@media (max-width: 992px) {
    .products-layout {
        flex-direction: column;
    }
    
    .products-sidebar {
        flex: 1;
        width: 100%;
    }
    
    .category-nav-group {
        grid-template-columns: 1fr;
    }
    
    .credential-item img {
        max-width: 150px;
    }
}

@media (max-width: 576px) {
    .products-sidebar {
        padding: 20px;
    }
    
    .category-nav-item {
        padding: 20px;
    }
    
    .category-name {
        font-size: 14px;
    }
}

/* 研发中心页面样式 */
.rnd-equipment {
    padding: 60px 30px;
}

.rnd-equipment .container {
    max-width: 1200px;
    margin: 0 auto;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.equipment-item {
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.equipment-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(74, 144, 217, 0.12);
}

.equipment-image-wrapper {
    position: relative;
    height: 200px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.equipment-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.equipment-image:not(.placeholder) {
    display: block;
}

.equipment-image:not(.placeholder) + .equipment-placeholder {
    display: none;
}

.equipment-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
    gap: 10px;
}

.equipment-placeholder i {
    font-size: 48px;
    opacity: 0.5;
}

.equipment-placeholder span {
    font-size: 14px;
}

.equipment-info {
    padding: 20px;
}

.equipment-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.equipment-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.rnd-team {
    padding: 60px 30px;
    background: #f8f9fa;
}

.rnd-team .container {
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rnd-equipment,
    .rnd-team {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .equipment-grid {
        grid-template-columns: 1fr;
    }
    
    .equipment-image-wrapper {
        height: 160px;
    }
}

.equipment-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.equipment-section .section-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.equipment-section {
    margin-bottom: 60px;
}

.equipment-section .equipment-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    width: 1140px;
    margin: 0 auto;
}

.equipment-section .equipment-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    background: #fff;
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 260px;
    border: 1px solid #e0e0e0;
}

.equipment-section .equipment-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #ccc;
}

.equipment-section .equipment-image-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.equipment-section .equipment-item img {
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
    display: block;
    background: #f8f8f8;
    border-radius: 4px;
}

.equipment-section .equipment-name {
    font-size: 12px;
    color: #333;
    text-align: center;
    line-height: 1.4;
    padding: 10px 5px 0;
}

/* 面包屑导航样�?*/
.breadcrumb {
    background: #f5f5f5;
    padding: 15px 30px;
    border-bottom: 1px solid #eee;
}

.breadcrumb .container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-link {
    color: #4a90d9;
    text-decoration: none;
    font-size: 17px;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: #999;
    font-size: 17px;
}

.breadcrumb-current {
    color: #666;
    font-size: 17px;
    font-family: 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 企业文化轮播样式 */
.company-culture .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.company-culture .section-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.carousel-showcase {
    position: relative;
    height: 400px;
    overflow: hidden;
    margin-bottom: 60px;
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease;
}

.carousel-item {
    flex: 0 0 0;
    width: 0;
    height: 100%;
    position: relative;
    cursor: pointer;
    transition: flex 0.5s ease, opacity 0.5s ease, width 0.5s ease;
    opacity: 0;
}

.carousel-item.active {
    flex: 0 0 50%;
    width: 50%;
    opacity: 1;
}

.carousel-item.adjacent {
    flex: 0 0 25%;
    width: 25%;
    opacity: 0.8;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-item .carousel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: #fff;
    text-align: center;
}

.carousel-item .carousel-overlay h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.carousel-item .carousel-overlay p {
    font-size: 14px;
    line-height: 1.6;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.8);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: #333;
    z-index: 10;
}

.carousel-nav.prev {
    left: 20px;
}

.carousel-nav.next {
    right: 20px;
}

.carousel-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-dot.active {
    background: #fff;
}

/* 企业资质轮播样式 */
.credentials-carousel {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-bottom: 60px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.credentials-track {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.credentials-item {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    opacity: 0;
    z-index: 1;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100px;
    display: flex;
    justify-content: center;
}

.credentials-item.center {
    z-index: 10;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.credentials-item.left-1 {
    z-index: 8;
    opacity: 0.85;
    transform: translate(calc(-50% - 180px), -50%) scale(0.75);
}

.credentials-item.right-1 {
    z-index: 8;
    opacity: 0.85;
    transform: translate(calc(-50% + 180px), -50%) scale(0.75);
}

.credentials-item.left-2 {
    z-index: 6;
    opacity: 0.7;
    transform: translate(calc(-50% - 320px), -50%) scale(0.6);
}

.credentials-item.right-2 {
    z-index: 6;
    opacity: 0.7;
    transform: translate(calc(-50% + 320px), -50%) scale(0.6);
}

.credentials-item.left-3 {
    z-index: 4;
    opacity: 0.5;
    transform: translate(calc(-50% - 440px), -50%) scale(0.5);
}

.credentials-item.right-3 {
    z-index: 4;
    opacity: 0.5;
    transform: translate(calc(-50% + 440px), -50%) scale(0.5);
}

.credentials-item.left-4 {
    z-index: 2;
    opacity: 0.3;
    transform: translate(calc(-50% - 540px), -50%) scale(0.4);
}

.credentials-item.right-4 {
    z-index: 2;
    opacity: 0.3;
    transform: translate(calc(-50% + 540px), -50%) scale(0.4);
}

.credentials-item img {
    max-width: 200px;
    max-height: 260px;
    object-fit: contain;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    background: #fff;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.credentials-item.center img {
    max-width: 350px;
    max-height: 430px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.credentials-item.left-1 img,
.credentials-item.right-1 img {
    max-width: 262px;
    max-height: 322px;
}

.credentials-item.left-2 img,
.credentials-item.right-2 img {
    max-width: 210px;
    max-height: 258px;
}

.credentials-item.left-3 img,
.credentials-item.right-3 img {
    max-width: 175px;
    max-height: 215px;
}

.credentials-item.left-4 img,
.credentials-item.right-4 img {
    max-width: 140px;
    max-height: 175px;
}

.credentials-item.wide-cert.center img {
    max-width: 625px;
    max-height: 450px;
}

.credentials-item.wide-cert.left-1 img,
.credentials-item.wide-cert.right-1 img {
    max-width: 469px;
    max-height: 338px;
}

.credentials-item.wide-cert.left-2 img,
.credentials-item.wide-cert.right-2 img {
    max-width: 391px;
    max-height: 281px;
}

.credentials-item.wide-cert.left-3 img,
.credentials-item.wide-cert.right-3 img {
    max-width: 281px;
    max-height: 203px;
}

.credentials-item.wide-cert.left-4 img,
.credentials-item.wide-cert.right-4 img {
    max-width: 250px;
    max-height: 180px;
}



/* 关于页面厂区展示轮播样式 */
.factory-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.factory-section .section-header h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.factory-section {
    margin-bottom: 60px;
}

.factory-carousel {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.factory-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.factory-slide {
    flex-shrink: 0;
    width: 100%;
    height: 100%;
    position: relative;
}

.factory-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.factory-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.4), transparent);
    padding: 60px 40px 40px;
    color: #fff;
}

.factory-overlay h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.factory-overlay p {
    font-size: 16px;
    opacity: 0.9;
    max-width: 600px;
    text-shadow: 0 1px 5px rgba(0,0,0,0.3);
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #333;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.carousel-nav:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
}

.carousel-nav.prev {
    left: 20px;
}

.carousel-nav.next {
    right: 20px;
}

.carousel-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.carousel-dot.active {
    background: #fff;
    border-color: #4a90d9;
    transform: scale(1.2);
}

.carousel-dot:hover {
    background: rgba(255,255,255,0.8);
}