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

body {
    font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
a{
    text-decoration: none;
}
.text-center {
    text-align: center;
}

/* 头部导航 */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
    max-height: 200px;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                padding 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 桌面端滚动时隐藏header-top */
@media (min-width: 769px) {
    .header.scrolled .header-top {
        max-height: 0;
        padding: 0;
        opacity: 0;
        border-bottom: none;
        pointer-events: none;
    }
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.logo a {
    display: block;
    line-height: 0;
}

.logo-image {
    height: 50px;
    width: auto;
    display: block;
    object-fit: contain;
}

.logo-desc {
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-left: 1px solid #ddd;
    padding-left: 15px;
}

.logo-desc-title {
    font-size: 18px;
    color: #333;
    font-weight: bold;
}

.logo-desc-subtitle {
    font-size: 14px;
    color: #999;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.header-phone {
    display: flex;
    flex-direction: column;
    gap: 5px;
    text-align: right;
}

.header-phone-label {
    font-size: 14px;
    color: #999;
}

.header-phone-number {
    font-size: 16px;
    color: #ff6600;
    font-weight: bold;
}

.language-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    color: #666;
}

.language-switch a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.language-switch a.active {
    color: #004a99;
    font-weight: bold;
}

.language-switch a:hover {
    color: #004a99;
}

.search-box {
    display: flex;
    align-items: center;
    border: 1px solid #ddd;
    border-radius: 20px;
    padding: 5px 15px;
    transition: border-color 0.3s;
}

.search-box:focus-within {
    border-color: #004a99;
}

.search-box input {
    border: none;
    outline: none;
    padding: 5px;
    width: 150px;
}

.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
}

.main-nav {
    padding: 15px 0;
}

.header.scrolled .main-nav {
    /* 保持不变 */
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.main-nav a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #004a99;
    transition: width 0.3s;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
    color: #004a99;
}

/* 顶部导航栏三级菜单样式 */
.main-nav li {
    position: relative;
}

.main-nav .nav-has-submenu {
    position: relative;
}

/* 二级菜单 */
.nav-submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 74, 153, 0.15);
    min-width: 220px;
    z-index: 1000;
    margin-top: 4px;
    padding: 20px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.nav-has-submenu:hover .nav-submenu {
    display: block;
    opacity: 1;
    visibility: visible;
}

.nav-submenu-item {
    position: relative;
}

.nav-submenu-item>a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
}

.nav-submenu-item>a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: #0066cc;
    transition: width 0.3s ease;
    border-radius: 0 4px 4px 0;
}

.nav-submenu-item>a:hover {
    background: #f0f8ff 0%;
    color: #004a99;
    padding-left: 28px;
}

.nav-submenu-item>a:hover::before {
    width: 4px;
}

.nav-submenu-item>a::after {
    display: none;
}

/* 三级菜单 */
.nav-third-menu {
    display: none;
    position: absolute;
    top: -12px;
    left: 100%;
    background: #fff;
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 74, 153, 0.15);
    min-width: 200px;
    z-index: 1001;
    margin-left: 1px;
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-submenu-item.nav-has-third:hover .nav-third-menu {
    display: block;
    opacity: 1;
    visibility: visible;
}

.nav-third-item {
    position: relative;
}

.nav-third-item>a {
    display: block;
    padding: 10px 18px;
    color: #333;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
}

.nav-third-item>a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: #0088ff;
    transition: width 0.3s ease;
    border-radius: 0 4px 4px 0;
}

.nav-third-item>a:hover {
    background: #f0f8ff;
    color: #0066cc;
    padding-left: 26px;
}

.nav-third-item>a:hover::before {
    width: 4px;
}

.nav-third-item>a::after {
    display: none;
}

/* 四级菜单 */
.nav-fourth-menu {
    display: none;
    position: absolute;
    top: -12px;
    left: 100%;
    background: #fff;
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 74, 153, 0.15);
    min-width: 180px;
    z-index: 1002;
    margin-left: 1px;
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-third-item.nav-has-fourth:hover .nav-fourth-menu {
    display: block;
    opacity: 1;
    visibility: visible;
}

.nav-fourth-item>a {
    display: block;
    padding: 10px 18px;
    color: #333;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
}

.nav-fourth-item>a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: #00aaff;
    transition: width 0.3s ease;
    border-radius: 0 4px 4px 0;
}

.nav-fourth-item>a:hover {
    background: #f0f8ff;
    color: #0088ff;
    padding-left: 26px;
}

.nav-fourth-item>a:hover::before {
    width: 4px;
}

.nav-fourth-item>a::after {
    display: none;
}


.language-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-left: 20px;
    padding-left: 20px;
    border-left: 1px solid #ddd;
}

.lang-btn {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    padding: 5px 8px;
}

.lang-btn:hover {
    color: #004a99;
}

.lang-btn.active {
    color: #004a99;
    font-weight: bold;
}

.lang-separator {
    color: #ddd;
}

/* 菜单切换按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: #333;
    transition: all 0.3s ease;
    display: block;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 0px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(10px, -5px);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 1024px) {
    .header-top {
        padding: 12px 0;
        height: 70px;
    }

    .logo {
        gap: 10px;
    }

    .logo-image {
        height: 45px;
    }

    .logo-desc-title {
        font-size: 12px;
    }

    .logo-desc-subtitle {
        font-size: 11px;
    }

    .header-right {
        display: none;
        gap: 20px;
    }

    .header-phone-number {
        font-size: 14px;
    }

}

@media (max-width: 768px) {
    .header-top {
        flex-direction: row;
        gap: 0;
        padding: 10px 15px;
        height: auto;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #eee;
    }

    .header.scrolled .header-top {
        height: auto !important;
        opacity: 1 !important;
        padding: 10px 15px !important;
        border-bottom: 1px solid #eee !important;
        pointer-events: auto !important;
        visibility: visible !important;
    }

    .logo-image {
        height: 40px;
    }

    .logo-desc {
        display: none;
    }

    .header-right {
        display: none;
    }

    .header-phone {
        display: none;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 15px 0;
        border-bottom: 1px solid #eee;
        z-index: 999;
    }

    .main-nav.active {
        display: flex;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }

    .main-nav a {
        font-size: 14px;
        padding: 12px 15px;
        display: block;
    }

    /* 移动端菜单样式 */
    .nav-submenu,
    .nav-third-menu,
    .nav-fourth-menu {
        position: static;
        display: none;
        box-shadow: none;
        border: none;
        border-left: 3px solid #0066cc;
        margin: 0;
        padding: 0;
        background: #f8f9fa;
    }

    .nav-has-submenu.active .nav-submenu,
    .nav-submenu-item.nav-has-third.active .nav-third-menu,
    .nav-third-item.nav-has-fourth.active .nav-fourth-menu {
        display: block;
    }

    .nav-submenu-item>a,
    .nav-third-item>a,
    .nav-fourth-item>a {
        padding-left: 30px;
        border-bottom: 1px solid #e0e0e0;
    }

    .nav-third-item>a {
        padding-left: 45px;
    }

    .nav-fourth-item>a {
        padding-left: 60px;
    }

    .nav-has-submenu.active>a::before,
    .nav-submenu-item.nav-has-third.active>a::before,
    .nav-third-item.nav-has-fourth.active>a::before {
        content: '−';
    }

    .language-switch {
        width: auto;
        justify-content: center;
        border-left: none;
        border-top: none;
        padding: 0;
        margin-left: 0;
        padding-left: 0;
        gap: 8px;
        order: 2;
        display: flex;
    }

    .lang-btn {
        font-size: 12px;
    }

    .menu-toggle {
        order: 3;
    }
}

@media (max-width: 480px) {
    .header-top {
        flex-direction: row;
        gap: 0;
        padding: 8px 12px;
        height: auto;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #eee;
    }

    .header.scrolled .header-top {
        height: auto !important;
        opacity: 1 !important;
        padding: 8px 12px !important;
        border-bottom: 1px solid #eee !important;
        pointer-events: auto !important;
        visibility: visible !important;
    }


    .logo-image {
        height: 35px;
    }

    .logo-desc {
        display: none;
    }

    .header-right {
        display: none;
    }

    .header-phone {
        display: none;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 50px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 10px 0;
        border-bottom: 1px solid #eee;
        z-index: 999;
    }

    .main-nav.active {
        display: flex;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }

    .main-nav a {
        font-size: 12px;
        padding: 10px 12px;
        display: block;
    }

    .language-switch {
        width: auto;
        justify-content: center;
        border-left: none;
        border-top: none;
        padding: 0;
        margin-left: 0;
        padding-left: 0;
        gap: 6px;
        order: 2;
        display: flex;
    }

    .lang-btn {
        font-size: 11px;
    }

    .menu-toggle {
        order: 3;
    }
}

/* Banner轮播 */
.banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

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

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

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

.slide.active {
    opacity: 1;
}

.slide-content {
    text-align: center;
    color: #fff;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    animation: fadeInUp 1s;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    animation: fadeInUp 1s 0.2s backwards;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    line-height: 1.6;
}

.btn-primary {
    display: inline-block;
    padding: 12px 40px;
    background: #fff;
    color: #004a99;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: all 0.3s;
    animation: fadeInUp 1s 0.4s backwards;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 40px;
    background: #004a99;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    transition: all 0.3s;
    border: 2px solid #004a99;
}

.btn-secondary:hover {
    background: transparent;
    color: #004a99;
}

.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

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

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

.banner-arrows {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 10;
}

.arrow {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: #fff;
    font-size: 40px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.arrow:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* 产品中心 */
.products-section {
    padding: 40px 0;
    background: #fff;
}

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

.section-header h2 {
    font-size: 32px;
    color: #000;
    margin-bottom: 5px;
    font-weight: bold;
}

.section-header p {
    color: #999;
    font-size: 14px;
    margin-bottom: 0;
}

/* 产品分类导航 */
.products-category-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    padding: 20px 0;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
}

.products-category-nav .category-item {
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    background: #fff;
    font-size: 14px;
}

.products-category-nav .category-item:hover {
    border-color: #0066cc;
    color: #0066cc;
}

.products-category-nav .category-item.active {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

/* 产品布局 */
.products-layout {
    display: block;
}

/* 产品展示区域 */
.products-main {
    width: 100%;
}

/* 左侧分类导航 - 已删除 */

/* 面包屑导航 */
.breadcrumb-nav {
    background: #f5f5f5;
    padding: 10px 15px;
    margin-bottom: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-nav a {
    color: #666;
    text-decoration: none;
}

.breadcrumb-nav a:hover {
    color: #004a99;
}

.breadcrumb-nav span {
    color: #999;
}

.process-section {
    text-align: center;
    padding: 100px 8%;
    position: relative;
}

.fa-spray-can:before {
    content: "\f5bd";
}

.process-container {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    position: relative;
    flex-wrap: wrap;
    gap: 20px;
}

.process-step {
    flex: 1;
    min-width: 150px;
    position: relative;
}

.section-title {
    font-size: 32px;
    color: #0066cc;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: #00A3E0;
}

.icon-circle {
    width: 80px;
    height: 80px;
    background: white;
    border: 2px solid #00A3E0;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: #00A3E0;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 2;
    position: relative;
}

.process-step:hover .icon-circle {
    background: #00A3E0;
    color: white;
    transform: rotateY(360deg);
}

.line-connector {
    position: absolute;
    top: 40px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #eee;
    z-index: 0;
}

/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

/* 首页产品网格 - 4列布局 */
.products-grid-section .products-grid {
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 20px;
}

.product-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    transition: all 0.3s ease;
    border-radius: 4px;
    cursor: pointer;
}

.product-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
    border-color: #0066cc;
}

.product-image {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
    padding-top: 100%; /* 创建1:1的正方形 */
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-info {
    padding: 15px;
    text-align: center;
}

.product-info h3 {
    font-size: 14px;
    color: #333;
    margin: 0;
    font-weight: normal;
}


/* 产品底部 - 分页 */
.products-footer {
    margin-top: 30px;
    padding-top: 20px;
}

/* 分页导航 */
.pagination-section {
    padding: 40px 0;
    background: #fff;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.page-btn,
.page-number,
.page-link {
    display: inline-block;
    padding: 8px 15px;
    border: 1px solid #ddd;
    background: #fff;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
    min-width: 40px;
    text-align: center;
    border-radius: 4px;
}

.page-btn:hover,
.page-number:hover,
.page-link:hover {
    background: #f5f5f5;
    color: #0066cc;
    border-color: #0066cc;
}

.page-number.active,
.page-link.active {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

/* 产品六大特色 */
.features-section {
    padding: 60px 0;
    background: #f5f5f5;
}

.features-section .section-header h2 {
    font-size: 32px;
    color: #333;
}

.features-section .highlight {
    color: #0066cc;
}

.features-layout {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    margin-top: 50px;
    align-items: center;
}

.features-left,
.features-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-box {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.feature-box:hover {
    transform: translateX(-5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.features-right .feature-box:hover {
    transform: translateX(5px);
}

.feature-number {
    font-size: 48px;
    font-weight: bold;
    color: #333;
    min-width: 80px;
    text-align: center;
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.feature-content p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.features-center {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}

.magnet-image {
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.magnet-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 合作流程 */
.cooperation-section {
    padding: 60px 0;
    background: #fff;
    border-top: 1px solid #e0e0e0;
    border-bottom: 1px solid #e0e0e0;
}

.cooperation-section .section-header h2 {
    color: #0066cc;
    font-size: 32px;
}

.cooperation-section .section-header p {
    color: #999;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.process-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.process-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.process-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: #ff9933;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(255, 136, 0, 0.3);
    transition: all 0.3s;
    border: 4px solid #0066cc;
    position: relative;
}

.process-circle::before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border-radius: 50%;
    border: 2px solid #0066cc;
}

.process-circle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(255, 136, 0, 0.5);
}

.process-num {
    font-size: 18px;
    margin-bottom: 5px;
}

.process-text {
    font-size: 16px;
}

/* 为什么选择诚泰磁业 */
.why-choose-section {
    padding: 0;
    background: #fff;
}

.why-choose-bg {
    background: #004a99;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.why-choose-bg::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to bottom right, transparent 49%, #fff 50%);
}

.why-choose-section .section-header h2 {
    color: #fff;
    font-size: 36px;
    font-weight: bold;
}

.why-choose-section .section-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
}

.why-choose-content {
    margin-top: 50px;
}

.choose-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
}

.choose-row.reverse {
    direction: rtl;
}

.choose-row.reverse>* {
    direction: ltr;
}

.choose-left,
.choose-right {
    position: relative;
}

.choose-badge-hex {
    width: 80px;
    height: 80px;
    background: #0066cc;
    color: #fff;
    font-size: 32px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.choose-info h3 {
    font-size: 24px;
    color: #fff;
    margin-bottom: 20px;
    font-weight: bold;
}

.choose-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.choose-list li {
    color: #fff;
    font-size: 14px;
    line-height: 2;
    padding-left: 0;
    position: relative;
}

.choose-row img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* 底部联系信息 */
.why-choose-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 10px;
    margin-top: 60px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-left {
    flex: 1;
}

.company-logo-large {
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 10px;
}

.company-slogan {
    font-size: 16px;
    color: #fff;
    margin-bottom: 5px;
}

.company-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-right {
    text-align: right;
}

.contact-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 10px;
}

/* 中间导航栏 */
.middle-nav-section {
    margin: 60px 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.company-info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
}

.company-logo-section {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-icon {
    font-size: 24px;
    font-weight: bold;
    color: #0066cc;
    background: #f0f8ff;
    padding: 10px 15px;
    border-radius: 5px;
}

.company-details {
    color: #333;
}

.company-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 5px;
}

.company-desc {
    font-size: 14px;
    color: #666;
}

.contact-phones {
    text-align: right;
}

.phone-label {
    font-size: 12px;
    color: #666;
    margin-bottom: 5px;
}

.phone-number {
    font-size: 16px;
    font-weight: bold;
    color: #ff8800;
    margin-bottom: 3px;
}

.nav-menu {
    display: flex;
    justify-content: center;
    background: #0066cc;
    padding: 0;
}

.nav-item {
    color: #fff;
    text-decoration: none;
    padding: 15px 20px;
    font-size: 14px;
    transition: all 0.3s;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-item:last-child {
    border-right: none;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(255, 255, 255, 0.2);
}

/* 客服联系 */
.service-contact {
    position: relative;
    text-align: center;
}

.service-contact img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.service-phone {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 10px 15px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.phone-icon {
    font-size: 18px;
}

.service-number {
    font-size: 16px;
    font-weight: bold;
    color: #ff8800;
}

/* 性能参数表格 */
.parameters-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.parameters-section .section-header h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
}

.parameters-section .section-header p {
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
}

.parameters-table-wrapper {
    overflow-x: auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    padding: 20px;
}

.parameters-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 1400px;
    font-size: 12px;
}

.parameters-table thead {
    background: linear-gradient(135deg, #0066cc 0%, #004a99 100%);
    color: #fff;
}

.parameters-table th {
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 11px;
    line-height: 1.4;
}

.parameters-table tbody tr:nth-child(even) {
    background: #f8f9fa;
}

.parameters-table tbody tr:hover {
    background: #e3f2fd;
    transition: background 0.3s;
}

.parameters-table td {
    padding: 10px 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
    color: #333;
}

.parameters-table td:first-child {
    font-weight: bold;
    background: #f0f8ff;
    color: #0066cc;
}

.parameters-table tbody tr td:nth-child(2) {
    font-weight: 600;
    color: #004a99;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .parameters-table {
        font-size: 11px;
        min-width: 1200px;
    }
    
    .parameters-table th,
    .parameters-table td {
        padding: 8px 6px;
    }
}

@media (max-width: 768px) {
    .parameters-section {
        padding: 40px 0;
    }
    
    .parameters-table-wrapper {
        padding: 15px;
    }
    
    .parameters-table {
        font-size: 10px;
        min-width: 1000px;
    }
    
    .parameters-table th,
    .parameters-table td {
        padding: 6px 4px;
    }
}

/* 关于我们 */
.about-section {
    padding: 80px 0;
    background: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text .section-header {
    text-align: left;
}

.about-text .underline {
    margin: 15px 0;
}

.about-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #004a99;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

.about-image {
    position: relative;
}

.image-placeholder {
    height: 400px;
    background-image: url(/images/about.jpg);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 应用领域 */
.applications-section {
    padding: 80px 0;
    background: #f8f9fa;
}



.applications-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    margin-top: 50px;
    align-items: center;
}

.applications-list {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}

.app-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 25px;
    border-bottom: 1px solid #f0f0f0;
    cursor: pointer;
    transition: all 0.3s;
    background: #fff;
}

.app-item:last-child {
    border-bottom: none;
}

.app-item:hover {
    background: #f8f9fa;
}

.app-item.active {
    background: #0066cc !important;
    color: #fff !important;
}

.app-item.active .app-name {
    color: #fff !important;
}

.app-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f8ff;
    border-radius: 8px;
    flex-shrink: 0;
}

.app-item.active .app-icon {
    background: rgba(255, 255, 255, 0.2) !important;
}

.app-name {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    transition: color 0.3s;
}

.applications-display {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    padding: 25px;
}

.display-content {
    display: none;
}

.display-content.active {
    display: block;
}

.display-header {
    margin-bottom: 25px;
    border-bottom: 1px solid #f0f0f0;
    padding-bottom: 20px;
}

.display-header h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

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

.display-image {
    width: 100%;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

.display-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.display-title {
    padding: 25px;
    border-top: 1px solid #f0f0f0;
}

.display-title h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
    font-weight: bold;
}

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

/* 新闻资讯 */
.news-section {
    padding: 80px 0;
    background: #fff;
}

.news-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    display: flex;
    gap: 30px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s;
}

.news-item:hover {
    background: #fff;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transform: translateX(10px);
}

.news-date {
    min-width: 80px;
    text-align: center;
    background: #004a99;
    color: #fff;
    padding: 15px;
    border-radius: 8px;
}

.news-date .day {
    display: block;
    font-size: 32px;
    font-weight: bold;
}

.news-date .month {
    display: block;
    font-size: 12px;
    margin-top: 5px;
}

.news-content h3 {
    margin-bottom: 10px;
}

.news-content h3 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.news-content h3 a:hover {
    color: #004a99;
}

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

/* 页脚 */
.footer {
    background: #191B28;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-column p {
    color: #bdc3c7;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 10px;
}

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

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

.footer-column ul li a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #95a5a6;
    font-size: 14px;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #004a99;
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #0066cc;
    transform: translateY(-5px);
}

.phone-number,
.phone-title {
    font-size: 18px;
}

/* 产品页样式（作用于 body.products-page 以避免与首页冲突） */
.hero-banner {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-banner-image {
    width: 100%;
    height: 100%;
}

.hero-banner-image img {
    width: 100%;
    height: 50vh;
    object-fit: cover;
    display: block;
}

.products-page .breadcrumb-section {
    padding: 20px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.products-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.products-page .breadcrumb-icon {
    color: #0066cc;
}

.products-page .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.products-page .breadcrumb a:hover {
    color: #0066cc;
}

.products-page .separator {
    color: #999;
}

.products-page .current {
    color: #333;
    font-weight: bold;
}

.products-page .products-center-header {
    padding: 40px 0;
    background: #fff;
    text-align: center;
}

.products-page .products-center-header .section-header h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
    font-weight: bold;
}

.products-page .products-center-header .section-header p {
    color: #999;
    font-size: 14px;
}

/* 产品页面布局 - 左侧边栏 + 右侧产品网格 */
.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    align-items: flex-start;
}

/* 左侧分类导航栏 */
.products-sidebar {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    position: sticky;
    top: 20px;
    border-right: 1px solid #f0f0f0;
}

.sidebar-category-nav {
    display: flex;
    flex-direction: column;
    padding: 20px 10px;
}

.sidebar-category-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    color: #333;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
    border-radius: 4px;
}

.sidebar-category-item:hover {
    background: #f5f5f5;
    color: #1890FF;
}

.sidebar-category-item.active {
    background: #e6f7ff;
    color: #1890FF;
    font-weight: 600;
}

.sidebar-category-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: #1890FF;
    border-radius: 0 2px 2px 0;
}

.sidebar-category-item span {
    color: inherit;
    font-size: inherit;
}

/* 侧边栏子菜单样式 */
.sidebar-sub-category-menu {
    display: none;
    background: transparent;
    padding: 4px 0;
}

.sidebar-category-item.has-submenu.active .sidebar-sub-category-menu {
    display: block;
}

.sidebar-sub-category-item {
    padding: 10px 16px 10px 32px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    color: #666;
    font-size: 14px;
    font-weight: 400;
    border-radius: 6px;
}

.sidebar-sub-category-item>div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.sidebar-sub-category-item .sub-arrow {
    font-size: 10px;
    transition: transform 0.3s;
    color: #999;
    margin-left: 8px;
}

.sidebar-sub-category-item.has-third.active .sub-arrow {
    transform: rotate(90deg);
}

.sidebar-sub-category-item:hover {
    color: #1890FF;
}

.sidebar-sub-category-item.active {
    color: #1890FF;
    font-weight: 500;
}

/* 侧边栏三级菜单样式 */
.sidebar-third-category-menu {
    display: none;
    flex-direction: column;
    background: transparent;
    padding: 4px 0;
}

.sidebar-sub-category-item.has-third.active .sidebar-third-category-menu {
    display: flex;
}

.sidebar-third-category-item {
    padding: 10px 70px 10px 16px;
    cursor: pointer;
    transition: all 0.3s;
    color: #666;
    font-size: 14px;
    font-weight: 400;
    position: relative;
    margin-bottom: 4px;
    border-radius: 4px;
}

.sidebar-third-category-item:hover {
    background: #f5f7fb;
    color: #1890FF;
}

.sidebar-third-category-item.active {
    background: #E6F7FF;
    color: #1677FF;
    font-weight: 500;
    margin-right: 10px;
}

.sidebar-third-category-item span {
    color: inherit;
    font-size: inherit;
}

.sidebar-third-category-item.active {
    color: #52c41a;
    font-weight: 600;
}

.sidebar-third-category-item span {
    color: inherit;
    font-size: inherit;
}

/* 侧边栏产品中心导航（类似头部导航样式） */
.sidebar-product-center-nav {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    /* 桌面端默认显示 */
    max-height: none;
    display: block;
}

.sidebar-nav-title {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    padding: 18px 20px;
    background: linear-gradient(135deg, #1890FF 0%, #0066cc 100%);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    border-bottom: none;
}

.sidebar-nav-menu {
    display: flex;
    flex-direction: column;
    padding: 10px 0;
}

.sidebar-nav-item {
    position: relative;
    border-bottom: 1px solid #f0f0f0;
    cursor: pointer;
}

.sidebar-nav-item:last-child {
    border-bottom: none;
}

.nav-item-content {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    color: #333;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
}

.sidebar-nav-item:hover .nav-item-content {
    background: linear-gradient(90deg, #f0f8ff 0%, transparent 100%);
    color: #1890FF;
    padding-left: 25px;
}

.nav-item-content::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: #1890FF;
    transition: width 0.3s ease;
}

.sidebar-nav-item:hover .nav-item-content::before,
.sidebar-nav-item.active .nav-item-content::before {
    width: 4px;
}

.sidebar-nav-item.active .nav-item-content {
    background: linear-gradient(90deg, #e6f7ff 0%, transparent 100%);
    color: #1890FF;
    font-weight: 600;
}

.nav-arrow {
    margin-left: auto;
    font-size: 16px;
    transition: transform 0.3s ease;
    color: #999;
    font-weight: bold;
}

.sidebar-nav-item.has-submenu.active .nav-item-content .nav-arrow {
    transform: rotate(90deg);
    color: #1890FF;
}

.sidebar-nav-third-item.active {
    color: #1890FF;
}

/* 二级菜单 */
.sidebar-nav-submenu {
    display: none;
    background: #fafbfc;
    margin: 0;
    padding: 8px 0;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }

    to {
        opacity: 1;
        max-height: 500px;
    }
}

.sidebar-nav-item.has-submenu.active .sidebar-nav-submenu {
    display: block;
}

.sidebar-nav-subitem {
    position: relative;
    cursor: pointer;
}

.nav-subitem-content {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px 10px 35px;
    color: #666;
    font-size: 13px;
    transition: all 0.3s ease;
    position: relative;
}


.sidebar-nav-subitem:hover .nav-subitem-content {
    background: #fff;
    color: #1890FF;
    padding-left: 40px;
}

.sidebar-nav-subitem.active .nav-subitem-content {
    color: #1890FF;
    font-weight: 600;
    padding-left: 37px;
}

.sidebar-nav-subitem.has-third .nav-subitem-content .nav-arrow {
    margin-left: auto;
    font-size: 14px;
    transition: transform 0.3s ease;
    color: #999;
}

.sidebar-nav-subitem.has-third.active .nav-subitem-content .nav-arrow {
    transform: rotate(90deg);
    color: #1890FF;
}

/* 三级菜单 */
.sidebar-nav-third {
    display: none;
    margin: 4px 0 4px 35px;
    padding: 6px 0;
    border-radius: 4px;
    animation: slideDown 0.3s ease;
}

.sidebar-nav-subitem.has-third.active .sidebar-nav-third {
    display: block;
}

.sidebar-nav-third-item {
    cursor: pointer;
}

.nav-third-content {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px 8px 25px;
    color: #666;
    font-size: 13px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-third-dash {
    font-size: 16px;
    min-width: 12px;
    font-weight: bold;
}

.sidebar-nav-third-item:hover .nav-third-content {
    background: rgba(255, 255, 255, 0.8);
    padding-left: 30px;
}

.sidebar-nav-third-item.active .nav-third-content {
    font-weight: 600;
    color: #1890FF;
    padding-left: 27px;
}



/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar-product-center-nav {
        margin-bottom: 20px;
    }

    .sidebar-nav-title {
        font-size: 16px;
        padding: 15px 18px;
    }

    .nav-item-content {
        padding: 12px 18px;
        font-size: 13px;
    }

    .nav-subitem-content {
        padding: 9px 18px 9px 30px;
        font-size: 12px;
    }

    .nav-third-content {
        padding: 7px 18px 7px 22px;
        font-size: 12px;
    }
}

/* 右侧产品网格区域 */
.products-main {
    flex: 1;
}

/* 移动端筛选按钮 - 桌面端隐藏 */
.mobile-filter-toggle {
    display: none;
}

/* 桌面端侧边栏默认显示 */
@media (min-width: 769px) {
    .sidebar-product-center-nav {
        display: block !important;
        max-height: none !important;
    }
}

/* 修复菜单激活状态显示问题 */
/* 所有一级菜单的默认激活样式 */
.sidebar-nav-item.active .nav-item-content {
    background: #1890FF;
    color: #fff;
    font-weight: 600;
}

.sidebar-nav-item.active .nav-item-content::before {
    width: 4px;
    background: #1890FF;
}

/* 当一级菜单有子菜单被激活时的淡化样式 */
.sidebar-nav-item.has-active-child .nav-item-content {
    background: rgba(24, 144, 255, 0.1) !important;
    color: #666 !important;
    font-weight: normal !important;
}

.sidebar-nav-item.has-active-child .nav-item-content::before {
    width: 2px !important;
    background: #ddd !important;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

/* 产品分类导航样式 */
.category-nav-section {
    padding: 30px 0;
    background: #fff;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
}

.category-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.category-item {
    padding: 12px 24px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    position: relative;
}

.category-item:hover {
    border-color: #0066cc;
    color: #0066cc;
}

.category-item.active {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

.category-item span {
    font-size: 14px;
}


/* 产品页面特定样式 */
.products-page .category-nav-section {
    padding: 30px 0;
    background: #fff;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
}

.products-page .category-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.products-page .category-item {
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    background: #fff;
    position: relative;
}

.products-page .category-item:hover {
    border-color: #0066cc;
    color: #0066cc;
}

.products-page .category-item.active {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

.products-page .category-item span {
    font-size: 14px;
}

/* 产品分类子菜单样式 */
.sub-category-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    z-index: 100;
    margin-top: 1px;
}

.category-item.has-submenu:hover .sub-category-menu {
    display: block;
}

.sub-category-item {
    padding: 9px 16px;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    color: #333;
    font-size: 14px;
}

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

.sub-category-item:last-child {
    border-bottom: none;
}

.sub-category-item:hover {
    background: #f5f7fb;
    color: #0066cc;
}

.sub-category-item.active {
    background: #eef3fb;
    color: #0066cc;
    font-weight: 600;
}

.sub-category-item.active span {
    color: #0066cc;
}

/* 产品分类三级菜单样式 */
.third-category-menu {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    z-index: 101;
    margin-left: 1px;
}

.sub-category-item.has-third:hover .third-category-menu {
    display: block;
}

.third-category-item {
    padding: 9px 14px;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
    font-size: 13px;
}

.third-category-item span {
    color: #333;
    font-size: 13px;
}

.third-category-item:last-child {
    border-bottom: none;
}

.third-category-item:hover {
    background: #f5f7fb;
    color: #0066cc;
}

.third-category-item:hover span {
    color: #0066cc;
}

.third-category-item.active {
    background: #eef3fb;
    color: #0066cc;
    font-weight: 600;
}

.third-category-item.active span {
    color: #0066cc;
}

.products-grid-section {
    padding: 40px 0;
    background: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.products-page .products-grid-section {
    padding: 40px 0;
    background: #fff;
}

/* 产品页面专用样式 - 强制3列布局 */
.products-page .products-main .products-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 30px !important;
    margin-bottom: 40px !important;
}

.products-page .products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 30px;
    margin-bottom: 40px;
}

/* 额外的强制规则 */
body.products-page .products-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 30px !important;
}

.products-page .product-card {
    border-radius: 8px;
    cursor: pointer;
}

.products-page .product-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.products-page .product-card {
    cursor: pointer;
}

.products-page .product-image {
    aspect-ratio: 1 / 1;
    background: #f8f9fa;
}

.products-page .product-image img {
    transition: transform 0.3s;
}

.products-page .product-card:hover .product-image img {
    transform: scale(1.05);
}

.products-page .product-info {
    padding: 20px;
}

.products-page .product-info h3 {
    font-size: 16px;
    font-weight: normal;
    margin-bottom: 10px;
}

.product-detail {
    font-size: 14px;
    color: #0066cc;
    margin: 0;
}

.products-page .product-detail {
    font-size: 14px;
    color: #0066cc;
    margin: 0;
}

.products-page .pagination-section {
    padding: 20px 0;
    text-align: center;
}

.news-page .pagination-section {
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid #e0e0e0;
}

/* 新闻页样式 */
.news-page .news-banner {
    width: 100%;
    height: 50vh;
    overflow: hidden;
    position: relative;
}

.news-page .news-banner-image {
    width: 100%;
    height: 100%;
}

.news-page .news-banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.news-page .breadcrumb-section {
    padding: 20px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.news-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.news-page .breadcrumb-icon {
    color: #0066cc;
}

.news-page .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.news-page .breadcrumb a:hover {
    color: #0066cc;
}

.news-page .separator {
    color: #999;
}

.news-page .current {
    color: #333;
    font-weight: bold;
}

.news-page .news-category-section {
    padding: 30px 0;
    background: #fff;
    text-align: center;
}

.news-page .category-tabs {
    display: inline-flex;
    gap: 0;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.news-page .category-tab {
    padding: 12px 30px;
    background: #666;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    border: none;
}

.news-page .category-tab:hover {
    background: #555;
}

.news-page .category-tab.active {
    background: #0066cc;
}

.news-page .category-tab:not(:last-child) {
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.news-page .news-list-section {
    padding: 40px 0;
    background: #fff;
}

.news-page .news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.news-page .news-item {
    display: flex;
    gap: 30px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s;
    cursor: pointer;
}

.news-page .news-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.news-page .news-image {
    position: relative;
    flex-shrink: 0;
    width: 200px;
    height: 150px;
    border-radius: 8px;
    overflow: hidden;
}

.news-page .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-page .news-date {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: #0066cc;
    color: #fff;
    padding: 8px 12px;
    border-radius: 4px;
    text-align: center;
    min-width: 60px;
}

.news-page .date-day {
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
}

.news-page .date-month {
    font-size: 12px;
    margin-top: 2px;
}

.news-page .news-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-page .news-title {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
    font-weight: bold;
    line-height: 1.4;
}

.news-page .news-title:hover {
    color: #0066cc;
}

.news-page .news-summary {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    display: -webkit-box;
    line-clamp: 3;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-page .news-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.news-page .news-source {
    font-size: 12px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 5px;
}

.products-page .floating-service,
.news-page .floating-service {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.products-page .service-item,
.news-page .service-item {
    background: #0066cc;
    color: #fff;
    padding: 12px 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    box-shadow: 0 2px 10px rgba(0, 102, 204, 0.3);
}

.products-page .service-item:hover,
.news-page .service-item:hover {
    background: #004a99;
    transform: translateX(-5px);
}

.products-page .service-icon,
.news-page .service-icon {
    font-size: 16px;
}

.products-page .footer-blue,
.news-page .footer-blue {
    background: #34495e;
    padding: 20px 0;
    color: #fff;
    text-align: center;
}

.products-page .footer-content span,
.news-page .footer-content span {
    font-size: 16px;
    font-weight: bold;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.fade-in {
    animation: fadeInUp 0.8s ease-out;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 32px;
    }

    /* 首页平板端产品网格 - 3列布局 */
    .products-grid-section .products-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 20px;
    }

    .features-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .pagination {
        gap: 4px;
    }

    .features-center {
        order: -1;
    }

    .magnet-image {
        width: 200px;
        height: 200px;
    }

    .process-steps {
        flex-wrap: wrap;
    }

    .choose-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .choose-item.reverse {
        direction: ltr;
    }

    .choose-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .choose-row.reverse {
        direction: ltr;
    }

    .why-choose-footer {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-right {
        text-align: center;
    }

    .middle-nav-section {
        margin: 40px 0;
    }

    .company-info-bar {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .nav-menu {
        flex-wrap: wrap;
    }

    .nav-item {
        flex: 1;
        min-width: 100px;
        text-align: center;
    }
}

@media (max-width: 768px) {

    .main-nav ul {
        flex-wrap: wrap;
        gap: 20px;
        justify-content: center;
    }

    .banner {
        height: 400px;
    }

    .slide-content h2 {
        font-size: 32px;
        margin-bottom: 15px;
    }

    .slide-content p {
        font-size: 16px;
        margin-bottom: 25px;
    }

    .btn-primary {
        padding: 10px 30px;
        font-size: 14px;
    }

    .banner-arrows {
        padding: 0 20px;
    }

    .arrow {
        width: 40px;
        height: 40px;
        font-size: 30px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-category-nav {
        gap: 10px;
        padding: 15px 0;
    }

    .products-category-nav .category-item {
        padding: 8px 15px;
        font-size: 12px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .applications-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .applications-list {
        order: 2;
    }

    .applications-display {
        order: 1;
    }

    .app-item {
        padding: 15px 20px;
    }

    .app-name {
        font-size: 14px;
    }

    .display-image {
        height: 250px;
    }

    .display-title {
        padding: 20px;
    }

    .display-title h3 {
        font-size: 18px;
    }

    .display-title p {
        font-size: 13px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .news-page .news-item {
        flex-direction: column;
    }

    .features-layout {
        grid-template-columns: 1fr;
    }

    .feature-box {
        padding: 20px;
    }

    .feature-number {
        font-size: 36px;
        min-width: 60px;
    }

    .process-circle {
        width: 90px;
        height: 90px;
    }

    .process-num {
        font-size: 14px;
    }

    .process-text {
        font-size: 13px;
    }

    .process-steps {
        gap: 15px;
    }

    .contact-info-box {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .hotline-large {
        flex-direction: column;
        text-align: center;
    }

    .choose-badge-hex {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }

    .choose-info h3 {
        font-size: 20px;
    }

    .choose-list li {
        font-size: 13px;
    }

    .why-choose-bg::before {
        height: 100px;
    }
}

@media (max-width: 480px) {

    .banner {
        height: 300px;
    }

    .slide-content {
        padding: 0 15px;
    }

    .slide-content h2 {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .slide-content p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .btn-primary {
        padding: 8px 25px;
        font-size: 13px;
    }

    .banner-arrows {
        padding: 0 15px;
    }

    .arrow {
        width: 35px;
        height: 35px;
        font-size: 24px;
    }

    .banner-dots {
        bottom: 20px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }

    .dot.active {
        width: 25px;
    }

    .products-category-nav {
        gap: 8px;
        padding: 12px 0;
    }

    .products-category-nav .category-item {
        padding: 6px 12px;
        font-size: 11px;
    }

    .products-grid,
    .applications-grid {
        grid-template-columns: 1fr;
    }

    .applications-layout {
        grid-template-columns: 1fr;
    }

    .app-item {
        padding: 12px 15px;
    }

    .app-icon {
        width: 35px;
        height: 35px;
        font-size: 20px;
    }

    .app-name {
        font-size: 13px;
    }

    .display-image {
        height: 200px;
    }

    .display-title {
        padding: 15px;
    }

    .display-title h3 {
        font-size: 16px;
    }

    .display-title p {
        font-size: 12px;
    }

    .slide-content h2 {
        font-size: 24px;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .stats {
        grid-template-columns: 1fr 1fr;
    }

    .process-circle {
        width: 80px;
        height: 80px;
    }

    .process-num {
        font-size: 12px;
    }

    .process-text {
        font-size: 11px;
    }

    .process-steps {
        gap: 10px;
    }

    .hotline-number {
        font-size: 18px;
    }

    .feature-number {
        font-size: 28px;
        min-width: 50px;
    }

    .feature-content h3 {
        font-size: 16px;
    }

    .feature-content p {
        font-size: 12px;
    }

    .contact-phone {
        font-size: 18px;
    }

    .company-logo-large {
        font-size: 28px;
    }

    .choose-badge-hex {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .choose-info h3 {
        font-size: 18px;
    }

    .choose-list li {
        font-size: 12px;
    }

    .nav-item {
        padding: 12px 15px;
        font-size: 12px;
    }

    .company-title {
        font-size: 14px;
    }

    .company-desc {
        font-size: 12px;
    }

    .service-phone {
        bottom: 10px;
        left: 10px;
        padding: 8px 12px;
    }

    .service-number {
        font-size: 14px;
    }
}

/* 产品页响应式 */
@media (max-width: 1024px) {
    .products-layout {
        grid-template-columns: 250px 1fr;
        gap: 30px;
    }

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

    .products-page .products-grid,
    .products-page .products-main .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 20px;
    }

    .hero-banner {
        height: 250px;
    }
}

@media (max-width: 768px) {
    .products-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .products-sidebar {
        position: static;
        order: 1;
        margin-top: 20px;
    }

    .products-main {
        order: 1;
    }

    /* 移动端筛选按钮 */
    .mobile-filter-toggle {
        display: block;
        width: 100%;
        padding: 12px 20px;
        background: #1890FF;
        color: #fff;
        border: none;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 15px;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .mobile-filter-toggle:hover {
        background: #0066cc;
    }

    .mobile-filter-toggle::after {
        content: '▼';
        float: right;
        transition: transform 0.3s ease;
    }

    .mobile-filter-toggle.active::after {
        transform: rotate(180deg);
    }

    /* 移动端侧边栏可折叠 */
    .sidebar-product-center-nav {
        background: #fff;
        border-radius: 8px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        margin-bottom: 20px;
        overflow: hidden;
        max-height: 0;
        transition: max-height 0.3s ease;
    }

    .sidebar-product-center-nav.show {
        max-height: 2000px !important;
    }

    .sidebar-nav-title {
        font-size: 16px;
        padding: 15px 18px;
        background: #1890FF;
        color: #fff;
        border-radius: 8px 8px 0 0;
    }

    .nav-item-content {
        padding: 12px 18px;
        font-size: 14px;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-subitem-content {
        padding: 10px 18px 10px 35px;
        font-size: 13px;
        background: #f8f9fa;
    }

    .nav-third-content {
        padding: 8px 18px 8px 50px;
        font-size: 12px;
        background: #f0f2f5;
    }

    /* 移动端箭头优化 */
    .nav-arrow {
        font-size: 16px;
        color: #999;
    }

    .sidebar-nav-item.has-submenu.active .nav-arrow {
        transform: rotate(90deg);
        color: #1890FF;
    }

    .sidebar-nav-subitem.has-third.active .nav-arrow {
        transform: rotate(90deg);
        color: #1890FF;
    }

    /* 移动端产品网格 */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .products-page .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px;
    }

    /* 首页移动端产品网格 - 2列布局 */
    .products-grid-section .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px;
    }

    .product-card {
        border-radius: 8px;
        overflow: hidden;
    }

    .product-info h3 {
        font-size: 14px;
        margin-bottom: 8px;
    }

    .product-detail {
        font-size: 12px;
    }

    .hero-banner {
        height: 200px;
    }

    .products-page .products-center-header {
        padding: 30px 0;
    }

    .products-page .products-center-header .section-header h2 {
        font-size: 24px;
    }

    .products-page .floating-service {
        right: 10px;
    }

    .products-page .service-item {
        padding: 8px 12px;
        font-size: 10px;
    }

    /* 移动端分页 */
    .pagination {
        justify-content: center;
        gap: 8px;
    }

    .page-number,
    .page-link {
        padding: 8px 12px;
        font-size: 14px;
        min-width: 36px;
    }
}

@media (max-width: 480px) {
    .products-layout {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .products-sidebar {
        order: 1;
        margin-top: 15px;
    }

    .products-main {
        order: 1;
    }

    /* 超小屏幕侧边栏优化 */
    .sidebar-nav-title {
        font-size: 15px;
        padding: 12px 15px;
    }

    .nav-item-content {
        padding: 10px 15px;
        font-size: 13px;
    }

    .nav-subitem-content {
        padding: 8px 15px 8px 30px;
        font-size: 12px;
    }

    .nav-third-content {
        padding: 6px 15px 6px 45px;
        font-size: 11px;
    }

    /* 超小屏幕产品网格 - 单列显示 */
    .products-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .products-page .products-grid ,
    .products-page .products-main .products-grid{
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    .product-card {
        max-width: 100%;
    }

    .product-info h3 {
        font-size: 16px;
        margin-bottom: 6px;
    }

    .product-detail {
        font-size: 13px;
    }

    /* 超小屏幕标题优化 */
    .products-page .products-center-header {
        padding: 20px 0;
    }

    .products-page .products-center-header .section-header h2 {
        font-size: 20px;
    }

    .products-page .products-center-header .section-header p {
        font-size: 12px;
    }

    /* 超小屏幕分页优化 */
    .pagination {
        gap: 4px;
        flex-wrap: wrap;
    }

    .page-number,
    .page-link {
        padding: 6px 10px;
        font-size: 12px;
        min-width: 32px;
    }

    /* 超小屏幕浮动服务按钮 */
    .products-page .floating-service {
        right: 8px;
        bottom: 20px;
    }

    .products-page .service-item {
        padding: 6px 8px;
        font-size: 9px;
        margin-bottom: 4px;
    }
}

.products-page .products-grid {
    grid-template-columns: 1fr !important;
}

.products-page .products-center-header {
    padding: 20px 0;
}

.products-page .products-center-header .section-header h2 {
    font-size: 20px;
}

.products-page .pagination {
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
}

.products-page .page-btn,
.products-page .page-number {
    padding: 6px 10px;
    font-size: 12px;
    min-width: 36px;
}

.products-page .floating-service {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    flex-direction: row;
    justify-content: center;
    margin: 20px 0;
}


/* 新闻页响应式 */
@media (max-width: 1024px) {
    .news-page .news-item {
        flex-direction: column;
        gap: 20px;
    }

    .news-page .news-image {
        width: 100%;
        height: 200px;
    }

    .news-page .news-banner {
        height: 150px;
    }
}

@media (max-width: 768px) {
    .news-page .news-item {
        padding: 15px;
        gap: 15px;
    }

    .news-page .news-image {
        height: 150px;
    }

    .news-page .news-title {
        font-size: 16px;
    }

    .news-page .news-summary {
        font-size: 13px;
        line-clamp: 2;
        -webkit-line-clamp: 2;
    }

    .news-page .category-tabs {
        flex-direction: column;
        width: 100%;
    }

    .news-page .category-tab {
        padding: 10px 20px;
    }

    .news-page .floating-service {
        right: 10px;
    }

    .news-page .service-item {
        padding: 8px 12px;
        font-size: 10px;
    }

    .news-page .pagination {
        flex-wrap: wrap;
        gap: 6px;
        justify-content: center;
    }

    .news-page .page-btn,
    .news-page .page-number {
        padding: 6px 10px;
        font-size: 12px;
        min-width: 36px;
    }

    .news-page .page-info {
        margin-right: 0;
        margin-bottom: 10px;
    }

    .news-page .jump-to {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .news-page .news-banner {
        height: 130px;
    }

    .news-page .news-list {
        gap: 20px;
    }
}

/* 关于我们页面样式 */
.about-page .about-hero-banner {
    padding: 80px 0;
    color: #fff;
    text-align: center;
}

.about-page .about-hero-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-page .about-hero-content p {
    font-size: 18px;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

.about-page .breadcrumb-section {
    padding: 20px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.about-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.about-page .breadcrumb-icon {
    color: #0066cc;
}

.about-page .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.about-page .breadcrumb a:hover {
    color: #0066cc;
}

.about-page .separator {
    color: #999;
}

.about-page .current {
    color: #333;
    font-weight: bold;
}

/* 公司简介 */
.about-page .about-intro-section {
    padding: 80px 0;
    background: #fff;
}

.about-page .about-intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-page .about-intro-left h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 30px;
    font-weight: bold;
    position: relative;
    padding-bottom: 15px;
}

.about-page .about-intro-left h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: #0066cc;
}

.about-page .about-intro-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-page .about-intro-text p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    text-align: justify;
}

.about-page .about-intro-image {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.about-page .about-intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 核心数据 */
.about-page .about-stats-section {
    padding: 80px 0;
    background: #f5f7fb;
}

.about-page .about-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-page .about-stat-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.about-page .about-stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.about-page .about-stat-number {
    font-size: 48px;
    font-weight: bold;
    color: #0066cc;
    margin-bottom: 10px;
}

.about-page .about-stat-label {
    font-size: 16px;
    color: #666;
    font-weight: 500;
}

/* 企业文化 */
.about-page .about-culture-section {
    padding: 80px 0;
    background: #fff;
}

.about-page .about-section-title {
    font-size: 36px;
    color: #333;
    text-align: center;
    margin-bottom: 60px;
    font-weight: bold;
    position: relative;
    padding-bottom: 20px;
}

.about-page .about-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #0066cc;
}

.about-page .about-culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.about-page .about-culture-item {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
    border-top: 4px solid transparent;
}

.about-page .about-culture-item:hover {
    border-top-color: #0066cc;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.about-page .about-culture-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: inline-block;
}

.about-page .about-culture-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
    font-weight: bold;
}

.about-page .about-culture-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

/* 发展历程 */
.about-page .about-timeline-section {
    padding: 80px 0;
    background: #f5f7fb;
}

.about-page .about-timeline {
    position: relative;
    padding: 40px 0;
}

.about-page .about-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #0066cc;
    transform: translateX(-50%);
}

.about-page .about-timeline-item {
    margin-bottom: 50px;
    position: relative;
}

.about-page .about-timeline-item:nth-child(odd) {
    margin-left: 0;
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.about-page .about-timeline-item:nth-child(even) {
    margin-left: 50%;
    margin-right: 0;
    text-align: left;
    padding-left: 40px;
}

.about-page .about-timeline-year {
    font-size: 20px;
    font-weight: bold;
    color: #0066cc;
    margin-bottom: 10px;
}

.about-page .about-timeline-content {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.about-page .about-timeline-content h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: bold;
}

.about-page .about-timeline-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.about-page .about-timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 16px;
    height: 16px;
    background: #0066cc;
    border: 4px solid #fff;
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 0 2px #0066cc;
}

/* 团队风采 */
.about-page .about-team-section {
    padding: 80px 0;
    background: #fff;
}

.about-page .about-team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-page .about-team-item {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.about-page .about-team-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.about-page .about-team-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #e0e0e0;
}

.about-page .about-team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.about-page .about-team-item:hover .about-team-image img {
    transform: scale(1.05);
}

.about-page .about-team-item h4 {
    font-size: 18px;
    color: #333;
    padding: 20px 20px 10px;
    margin: 0;
    font-weight: bold;
}

.about-page .about-team-item p {
    font-size: 13px;
    color: #666;
    padding: 0 20px 20px;
    margin: 0;
    line-height: 1.6;
}

/* 荣誉资质 */
.about-page .about-honors-section {
    padding: 80px 0;
    background: #f5f7fb;
}

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

.about-page .about-honor-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.about-page .about-honor-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.about-page .about-honor-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: inline-block;
}

.about-page .about-honor-item p {
    font-size: 16px;
    color: #333;
    font-weight: 500;
    margin: 0;
}

/* 联系我们 */
.about-page .about-contact-section {
    padding: 80px 0;
    background: #fff;
}

.about-page .about-contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-page .about-contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-page .about-contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.about-page .about-contact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f8ff;
    border-radius: 10px;
    flex-shrink: 0;
}

.about-page .about-contact-text h4 {
    font-size: 18px;
    color: #333;
    margin: 0 0 8px 0;
    font-weight: bold;
}

.about-page .about-contact-text p {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.6;
}

.about-page .about-contact-cta {
    background-image: url(/images/c-4.jpg);
    color: #fff;
    padding: 50px 40px;
    border-radius: 10px;
    text-align: center;
}

.about-page .about-contact-cta h3 {
    font-size: 28px;
    margin: 0 0 15px 0;
    font-weight: bold;
}

.about-page .about-contact-cta p {
    font-size: 16px;
    margin: 0 0 30px 0;
    opacity: 0.95;
}

.about-page .about-contact-cta .btn-primary {
    background: #fff;
    color: #0066cc;
    padding: 14px 40px;
    font-weight: bold;
    display: inline-block;
    border-radius: 25px;
    transition: all 0.3s;
}

.about-page .about-contact-cta .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.about-page .floating-service {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.about-page .service-item {
    background: #0066cc;
    color: #fff;
    padding: 12px 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    box-shadow: 0 2px 10px rgba(0, 102, 204, 0.3);
}

.about-page .service-item:hover {
    background: #004a99;
    transform: translateX(-5px);
}

.about-page .service-icon {
    font-size: 16px;
}

/* 关于我们页响应式 */
@media (max-width: 1024px) {
    .about-page .about-intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-page .about-culture-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .about-page .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-page .about-team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-page .about-honors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-page .about-contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .about-page .about-hero-content h1 {
        font-size: 32px;
    }

    .about-page .about-hero-content p {
        font-size: 16px;
    }

    .about-page .about-intro-left h2 {
        font-size: 28px;
    }

    .about-page .about-section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .about-page .about-culture-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .about-page .about-stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .about-page .about-team-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .about-page .about-honors-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .about-page .about-timeline-item:nth-child(odd),
    .about-page .about-timeline-item:nth-child(even) {
        margin-left: 0;
        margin-right: 0;
        text-align: left;
        padding-left: 40px;
        padding-right: 0;
    }

    .about-page .about-timeline::before {
        left: 0;
        transform: translateX(0);
    }

    .about-page .about-timeline-item::before {
        left: 0;
        transform: translateX(-50%);
    }

    .about-page .floating-service {
        right: 10px;
    }

    .about-page .service-item {
        padding: 8px 12px;
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .about-page .about-hero-banner {
        padding: 50px 0;
    }

    .about-page .about-hero-content h1 {
        font-size: 24px;
    }

    .about-page .about-hero-content p {
        font-size: 14px;
    }

    .about-page .about-intro-section,
    .about-page .about-stats-section,
    .about-page .about-culture-section,
    .about-page .about-timeline-section,
    .about-page .about-team-section,
    .about-page .about-honors-section,
    .about-page .about-contact-section {
        padding: 50px 0;
    }

    .about-page .about-intro-left h2 {
        font-size: 22px;
    }

    .about-page .about-section-title {
        font-size: 22px;
        margin-bottom: 30px;
    }

    .about-page .about-stat-number {
        font-size: 36px;
    }

    .about-page .about-stat-item {
        padding: 25px 15px;
    }

    .about-page .about-culture-item {
        padding: 25px 15px;
    }

    .about-page .about-culture-icon {
        font-size: 36px;
    }

    .about-page .about-culture-item h3 {
        font-size: 16px;
    }

    .about-page .about-culture-item p {
        font-size: 12px;
    }

    .about-page .about-team-item h4 {
        font-size: 16px;
        padding: 15px 15px 8px;
    }

    .about-page .about-team-item p {
        font-size: 12px;
        padding: 0 15px 15px;
    }

    .about-page .about-honor-item {
        padding: 25px 15px;
    }

    .about-page .about-honor-icon {
        font-size: 36px;
    }

    .about-page .about-honor-item p {
        font-size: 14px;
    }

    .about-page .about-contact-cta {
        padding: 30px 20px;
    }

    .about-page .about-contact-cta h3 {
        font-size: 22px;
    }

    .about-page .about-contact-cta p {
        font-size: 14px;
    }
}

/* 应用领域页面样式 */
.applications-page .app-hero-banner {
    background: #4a90e2;
    padding: 60px 0;
    color: #fff;
}

.applications-page .app-hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.applications-page .app-hero-left {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.applications-page .app-hero-title {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.applications-page .app-hero-years {
    font-size: 48px;
    font-weight: bold;
    line-height: 1;
}

.applications-page .app-hero-subtitle {
    font-size: 14px;
    opacity: 0.9;
    padding-top: 5px;
}

.applications-page .app-hero-main {
    font-size: 36px;
    font-weight: bold;
    line-height: 1.3;
    margin: 0;
}

.applications-page .app-hero-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.applications-page .app-feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.applications-page .app-feature-icon {
    font-size: 32px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    flex-shrink: 0;
}

.applications-page .app-feature-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.applications-page .app-feature-title {
    font-size: 16px;
    font-weight: bold;
}

.applications-page .app-feature-desc {
    font-size: 13px;
    opacity: 0.9;
}

.applications-page .app-hero-right {
    display: flex;
    align-items: center;
    justify-content: center;
}

.applications-page .app-hero-products {
    position: relative;
    width: 400px;
    height: 300px;
}

.applications-page .app-product-card {
    position: absolute;
    width: 150px;
    height: 150px;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.applications-page .app-product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.applications-page .app-product-1 {
    top: 0;
    right: 0;
    transform: rotate(15deg);
}

.applications-page .app-product-2 {
    top: 75px;
    left: 50%;
    transform: translateX(-50%) rotate(-10deg);
    z-index: 10;
}

.applications-page .app-product-3 {
    bottom: 0;
    left: 0;
    transform: rotate(20deg);
}

.applications-page .breadcrumb-section {
    padding: 20px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.applications-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.applications-page .breadcrumb-icon {
    color: #0066cc;
}

.applications-page .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.applications-page .breadcrumb a:hover {
    color: #0066cc;
}

.applications-page .separator {
    color: #999;
}

.applications-page .current {
    color: #333;
    font-weight: bold;
}

.applications-page .app-showcase-section {
    padding: 60px 0;
    background: #fff;
}

.applications-page .app-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.applications-page .app-showcase-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    cursor: pointer;
}

.applications-page .app-showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.applications-page .app-showcase-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.applications-page .app-showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.applications-page .app-showcase-item:hover .app-showcase-image img {
    transform: scale(1.05);
}

.applications-page .app-showcase-title {
    padding: 20px;
    text-align: center;
    font-size: 16px;
    color: #333;
    font-weight: bold;
    border-top: 3px solid #0066cc;
}

.applications-page .floating-service {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.applications-page .service-item {
    background: #0066cc;
    color: #fff;
    padding: 12px 16px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    box-shadow: 0 2px 10px rgba(0, 102, 204, 0.3);
}

.applications-page .service-item:hover {
    background: #004a99;
    transform: translateX(-5px);
}

.applications-page .service-icon {
    font-size: 16px;
}

/* 应用领域页响应式 */
@media (max-width: 1024px) {
    .applications-page .app-hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .applications-page .app-hero-products {
        width: 300px;
        height: 250px;
    }

    .applications-page .app-product-card {
        width: 120px;
        height: 120px;
    }

    .applications-page .app-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .applications-page .app-hero-banner {
        padding: 40px 0;
    }

    .applications-page .app-hero-main {
        font-size: 28px;
    }

    .applications-page .app-hero-years {
        font-size: 36px;
    }

    .applications-page .app-showcase-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .applications-page .app-showcase-image {
        height: 150px;
    }

    .applications-page .floating-service {
        right: 10px;
    }

    .applications-page .service-item {
        padding: 8px 12px;
        font-size: 10px;
    }

    .category-nav-section {
        padding: 14px 0;
    }

    .products-section {
        padding: 24px 0;
    }

    .section-header {
        margin-bottom: 0;
    }

    .category-nav {
        gap: 10px;
    }

    .category-item {
        padding: 6px 16px;
    }



}

@media (max-width: 480px) {
    .applications-page .app-hero-banner {
        padding: 30px 0;
    }

    .applications-page .app-hero-main {
        font-size: 24px;
    }

    .applications-page .app-hero-years {
        font-size: 32px;
    }

    .applications-page .app-hero-features {
        gap: 10px;
    }

    .applications-page .app-feature-item {
        gap: 10px;
    }

    .applications-page .app-feature-icon {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }

    .applications-page .app-showcase-section {
        padding: 40px 0;
    }

    .applications-page .app-showcase-image {
        height: 120px;
    }

    .applications-page .app-showcase-title {
        padding: 15px;
        font-size: 14px;
    }
}

/* 新闻详情保留（便于 page 复用） */
.news-detail-page {
    background: #f8f9fb;
}

.news-detail-hero {
    background: #004a99;
    color: #fff;
    padding: 40px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.news-detail-hero .hero-text h2 {
    font-size: 30px;
    margin: 10px 0 12px;
    font-weight: bold;
}

.news-detail-hero .hero-subtitle {
    letter-spacing: 2px;
    opacity: 0.9;
    font-size: 14px;
}

.news-detail-hero .hero-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    opacity: 0.95;
}

.news-detail-main {
    padding: 40px 0 60px;
}

.news-article {
    background: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.article-header h1 {
    font-size: 26px;
    color: #222;
    margin-bottom: 12px;
    line-height: 1.4;
    font-weight: bold;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: #999;
}

.article-body {
    margin-top: 25px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    color: #444;
    line-height: 1.9;
    font-size: 15px;
}

.article-body p {
    margin: 0;
}

.article-body .article-em {
    padding: 12px 16px;
    background: #f1f6ff;
    border-left: 4px solid #0066cc;
    border-radius: 6px;
    color: #1b3d6d;
}

.article-pagination {
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.article-pagination a {
    color: #0066cc;
    text-decoration: none;
    font-size: 14px;
}

.article-pagination a:hover {
    text-decoration: underline;
}

.news-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.side-card {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.side-card h3 {
    font-size: 16px;
    color: #222;
    margin-bottom: 14px;
    font-weight: bold;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-list a {
    padding: 6px 12px;
    background: #f5f7fb;
    color: #0066cc;
    border-radius: 16px;
    text-decoration: none;
    font-size: 13px;
    border: 1px solid #e3e8f0;
    transition: all 0.2s;
}

.tag-list a:hover {
    background: #e8f0ff;
    border-color: #cddaf5;
}

.side-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.side-list li a {
    color: #444;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.6;
}

.side-list li a:hover {
    color: #0066cc;
}

.contact-card {
    text-align: center;
}

.contact-card .phone {
    font-size: 22px;
    font-weight: bold;
    color: #ff8800;
    margin-bottom: 6px;
}

.contact-card .desc {
    color: #666;
    font-size: 13px;
    margin-bottom: 12px;
}

.contact-card .contact-btn {
    background: #0066cc;
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 22px;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    font-size: 14px;
}

.contact-card .contact-btn:hover {
    background: #004a99;
    transform: translateY(-2px);
}

.news-detail-page .back-to-top {
    right: 25px;
}

/* 产品详情页 */
.product-detail-page {
    background: #f8f9fb;
}

.product-detail-page .breadcrumb-section {
    padding: 20px 0;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
}

.product-detail-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.product-detail-page .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.product-detail-page .breadcrumb a:hover {
    color: #0066cc;
}

.product-detail-page .breadcrumb .separator {
    color: #999;
}

.product-detail-page .breadcrumb .current {
    color: #333;
    font-weight: 500;
}

.pd-hero {
    background: #004a99;
    color: #fff;
    padding: 40px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.pd-hero-text h1 {
    font-size: 32px;
    margin: 8px 0 12px;
    font-weight: bold;
}

.pd-hero-sub {
    letter-spacing: 2px;
    opacity: 0.9;
    font-size: 14px;
}

.pd-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    opacity: 0.95;
}

.pd-main {
    padding: 40px 0 60px;
}

.pd-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: stretch;
}

.pd-gallery {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
}

.pd-main-image {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    background: #f5f7fb;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e8eef5;
}

.pd-main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 产品规格表 */
.pd-specs-table {
    margin-top: 0;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e8eef5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    grid-column: 1 / -1;
}

.pd-specs-table h3 {
    padding: 20px;
    background: #0066cc;
    font-size: 18px;
    color: #fff;
    margin: 0;
    font-weight: 600;
}

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

.pd-specs-table table tbody tr {
    border-bottom: 1px solid #f0f0f0;
    transition: background-color 0.3s ease;
}

.pd-specs-table table tbody tr:hover {
    background-color: #f9fafb;
}

.pd-specs-table table tbody tr:last-child {
    border-bottom: none;
}

.pd-specs-table table td {
    padding: 16px 20px;
    font-size: 14px;
    color: #666;
}

.pd-specs-table table td:first-child {
    width: 35%;
    background: #f5f7fb;
    color: #004a99;
    font-weight: 600;
    border-right: 2px solid #e8eef5;
}

.pd-specs-table table tbody tr:hover td:first-child {
    background: #eef3fb;
}

.pd-specs-table table td:last-child {
    width: 65%;
    color: #333;
    font-weight: 500;
}

.pd-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 14px;
}

.pd-thumb {
    border: 1px solid #e6e9f0;
    border-radius: 10px;
    padding: 6px;
    cursor: pointer;
    transition: all 0.2s;
    background: #fff;
    position: relative;
    overflow: hidden;
}

.pd-thumb img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    border-radius: 8px;
    display: block;
}

.pd-thumb:hover {
    border-color: #0066cc;
}

.pd-thumb.active {
    border-color: #0066cc;
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.12);
}

.pd-info {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.pd-title {
    font-size: 26px;
    margin-bottom: 10px;
    color: #222;
    font-weight: bold;
}

.pd-subtitle {
    color: #666;
    line-height: 1.7;
    margin-bottom: 16px;
}

.pd-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.pd-tag {
    background: #f1f6ff;
    color: #0066cc;
    border: 1px solid #d9e6ff;
    padding: 6px 12px;
    border-radius: 14px;
    font-size: 13px;
}

.pd-cta {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
}

.pd-btn {
    border: none;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.pd-btn-primary {
    background: #0066cc;
    color: #fff;
}

.pd-btn-primary:hover {
    background: #004fa5;
    transform: translateY(-2px);
}

.pd-btn-outline {
    background: #fff;
    color: #0066cc;
    border: 1px solid #0066cc;
}

.pd-btn-outline:hover {
    background: #f0f6ff;
}

.pd-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.pd-highlights h4 {
    font-size: 15px;
    color: #222;
    margin-bottom: 6px;
}

.pd-highlights p {
    color: #555;
    font-size: 13px;
    line-height: 1.6;
}

.pd-section {
    padding: 40px 0;
}

.pd-section-header {
    text-align: center;
    margin-bottom: 24px;
}

.pd-section-header h3 {
    font-size: 24px;
    color: #222;
    margin-bottom: 6px;
    font-weight: bold;
}

.pd-section-header p {
    color: #777;
}

.pd-spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.pd-spec-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.pd-spec-card h4 {
    font-size: 18px;
    color: #222;
    margin-bottom: 12px;
}

.pd-spec-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pd-spec-card li {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    font-size: 14px;
    color: #444;
}

.pd-spec-card li span:first-child {
    color: #666;
    min-width: 110px;
}

.pd-apps .pd-app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.pd-app-card {
    background: #fff;
    border-radius: 12px;
    padding: 18px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    transition: all 0.2s;
}

.pd-app-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.pd-app-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #f1f6ff;
    color: #0066cc;
    display: grid;
    place-items: center;
    font-size: 20px;
    margin-bottom: 10px;
}

.pd-app-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: #222;
}

.pd-app-card p {
    color: #666;
    font-size: 13px;
    line-height: 1.7;
    margin: 0;
}

.pd-contact {
    background: #f5f8ff;
}

.pd-contact-card {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    align-items: start;
    background: #fff;
    border-radius: 16px;
    padding: 26px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.pd-contact h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.pd-contact p {
    color: #555;
    line-height: 1.7;
    margin-bottom: 14px;
}

.pd-contact-list {
    list-style: none;
    padding: 0;
    margin: 0 0 14px 0;
    color: #444;
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
}

.pd-contact-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.pd-contact-btn {
    padding: 10px 16px;
    border-radius: 10px;
    background: #0066cc;
    color: #fff;
    font-size: 14px;
    border: none;
}

.pd-contact-secondary {
    background: #f1f6ff;
    color: #0066cc;
    border: 1px solid #d9e6ff;
}

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

.pd-contact-form input,
.pd-contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #dfe5ee;
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.pd-contact-form input:focus,
.pd-contact-form textarea:focus {
    border-color: #0066cc;
}

.pd-contact-form textarea {
    resize: vertical;
}


/* 产品详情页 - 新增样式 */

/* 产品描述区块 */
.pd-description {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e8eef5;
}

.pd-description p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* 产品特点区块 */
.pd-features {
    margin-bottom: 24px;
}

.pd-features h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

.pd-features-content {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    padding-left: 0;
}

/* 操作按钮区 */
.pd-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.pd-actions .btn-primary,
.pd-actions .btn-secondary {
    flex: 1;
    text-align: center;
    padding: 12px 24px;
    font-size: 14px;
    border-radius: 6px;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.pd-actions .btn-primary {
    background: #0066cc;
    color: #fff;
    border: 2px solid #0066cc;
}

.pd-actions .btn-primary:hover {
    background: #004fa5;
    border-color: #004fa5;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.pd-actions .btn-secondary {
    background: #fff;
    color: #0066cc;
    border: 2px solid #0066cc;
}

.pd-actions .btn-secondary:hover {
    background: #f0f6ff;
    transform: translateY(-2px);
}

/* 产品详情区块 */
.pd-details-section {
    background: #f8f9fa;
    padding: 40px 0;
    margin-top: 40px;
}

/* 标签页导航 */
.pd-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #e8eef5;
    margin-bottom: 30px;
}

.pd-tab-item {
    padding: 12px 30px;
    font-size: 15px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    position: relative;
}

.pd-tab-item:hover {
    color: #0066cc;
    background: #f8f9fa;
}

.pd-tab-item.active {
    color: #0066cc;
    font-weight: 600;
    border-bottom-color: #0066cc;
    background: #fff;
}

/* 标签页内容 */
.pd-tab-content {
    position: relative;
}

.pd-tab-pane {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.pd-tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 应用领域内容 */
.pd-applications-content {
    background: #fff;
    padding: 24px;
    border-radius: 8px;
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .pd-actions {
        flex-direction: column;
    }
    
    .pd-actions .btn-primary,
    .pd-actions .btn-secondary {
        width: 100%;
    }
    
    .pd-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .pd-tab-item {
        padding: 10px 20px;
        font-size: 14px;
        white-space: nowrap;
    }
    
    .pd-details-section {
        padding: 30px 0;
    }
}

@media (max-width: 480px) {
    .pd-description p,
    .pd-features-content,
    .pd-applications-content {
        font-size: 13px;
    }
    
    .pd-features h3 {
        font-size: 15px;
    }
    
    .pd-tab-item {
        padding: 8px 16px;
        font-size: 13px;
    }
}


.product-detail-page .back-to-top {
    right: 25px;
}

@media (max-width: 1024px) {
    .pd-main-image {
        height: 350px;
    }
    
    .pd-layout {
        grid-template-columns: 1fr;
    }

    .pd-contact-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .pd-main-image {
        height: 300px;
    }
    
    .pd-main {
        padding: 30px 0;
    }

    .pd-hero-text h1 {
        font-size: 24px;
    }

    .pd-title {
        font-size: 22px;
    }

    .pd-cta {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .pd-hero {
        padding: 28px 0;
    }

    .pd-main-image {
        height: 250px;
    }

    .pd-spec-card li {
        flex-direction: column;
        align-items: flex-start;
    }

    .pd-contact-actions {
        flex-direction: column;
    }

    .pd-btn {
        width: 100%;
        text-align: center;
    }
}




/* ========== 联系我们页面样式 ========== */

/* 新闻详情页面 */
.news-detail-hero {
    background: #4a90e2;
    padding: 60px 0;
    color: #fff;
}

.news-detail-hero .hero-text {
    text-align: center;
}

.hero-subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 15px;
}

.news-detail-hero h2 {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.4;
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 14px;
    opacity: 0.9;
}

.news-detail-main {
    padding: 40px 0;
    background: #fff;
}

.news-article {
    background: #fff;
}

/* 联系我们部分 */
.contact-us-section {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.contact-header {
    flex-shrink: 0;
    min-width: 200px;
}

.contact-title {
    font-size: 48px;
    font-weight: bold;
    color: #0066cc;
    line-height: 1.2;
    margin-bottom: 20px;
}

.contact-subtitle {
    font-size: 18px;
    color: #333;
    font-weight: bold;
    position: relative;
    padding-bottom: 15px;
}

.contact-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: #0066cc;
}

.contact-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
}

.contact-left {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-person img {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-middle,
.contact-right {
    display: flex;
    align-items: center;
}

.contact-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    position: relative;
}

.contact-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 80px;
    color: rgba(0, 102, 204, 0.1);
    line-height: 1;
}

.card-title {
    font-size: 18px;
    color: #0066cc;
    font-weight: bold;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #0066cc;
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    font-weight: bold;
}

.card-text {
    font-size: 13px;
    color: #666;
    line-height: 1.8;
    text-align: justify;
}

.company-name {
    font-size: 14px;
    color: #333;
    font-weight: bold;
    margin-bottom: 15px;
}

.contact-info {
    font-size: 13px;
    color: #666;
    line-height: 2;
}

.contact-info p {
    margin-bottom: 8px;
}

.contact-info strong {
    color: #333;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .contact-us-section {
        flex-direction: column;
        gap: 40px;
    }

    .contact-content {
        grid-template-columns: 1fr 2fr;
    }

    .contact-left {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .contact-title {
        font-size: 36px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-card {
        padding: 20px;
    }

    .hero-meta {
        flex-direction: column;
        gap: 10px;
    }

    .news-detail-hero h2 {
        font-size: 24px;
    }

    .news-page .news-list-section {
        padding: 0;
    }
}

@media (max-width: 480px) {
    .contact-title {
        font-size: 28px;
    }

    .contact-subtitle {
        font-size: 16px;
    }

    .card-title {
        font-size: 16px;
    }

    .card-text,
    .contact-info {
        font-size: 12px;
    }
}

/* 产品详情标题 */
.pd-details-title {
    display: none;
}

/* 产品详情内容 */
.pd-details-content {
    background: #fff;
    padding: 40px;
    line-height: 1.8;
    color: #333;
}

.pd-details-content h1,
.pd-details-content h2,
.pd-details-content h3,
.pd-details-content h4,
.pd-details-content h5,
.pd-details-content h6 {
    margin: 20px 0 15px;
    color: #333;
    font-weight: 600;
}

.pd-details-content h1 { font-size: 26px; }
.pd-details-content h2 { font-size: 24px; }
.pd-details-content h3 { font-size: 20px; }
.pd-details-content h4 { font-size: 18px; }
.pd-details-content h5 { font-size: 16px; }
.pd-details-content h6 { font-size: 14px; }

.pd-details-content p {
    margin: 15px 0;
    font-size: 15px;
}

.pd-details-content img {
    max-width: 100%;
    width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
}

.pd-details-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #fff;
}

.pd-details-content table th,
.pd-details-content table td {
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    text-align: left;
}

.pd-details-content table th {
    background: #f5f5f5;
    font-weight: 600;
    color: #333;
}

.pd-details-content table tr:hover {
    background: #f9f9f9;
}

.pd-details-content ul,
.pd-details-content ol {
    margin: 15px 0;
    padding-left: 30px;
}

.pd-details-content li {
    margin: 8px 0;
    font-size: 15px;
}

.pd-details-content blockquote {
    margin: 20px 0;
    padding: 15px 20px;
    background: #f8f9fa;
    border-left: 4px solid #0066cc;
    color: #666;
}

.pd-details-content code {
    background: #f5f5f5;
    padding: 2px 6px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #e83e8c;
}

.pd-details-content pre {
    background: #f5f5f5;
    padding: 15px;
    overflow-x: auto;
    margin: 20px 0;
}

.pd-details-content pre code {
    background: none;
    padding: 0;
    color: #333;
}

.pd-details-content a {
    color: #0066cc;
    text-decoration: none;
}

.pd-details-content a:hover {
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 768px) {
    .pd-details-title h2 {
        font-size: 22px;
    }
    
    .pd-details-content {
        padding: 20px;
    }
    
    .pd-details-content h1 { font-size: 22px; }
    .pd-details-content h2 { font-size: 20px; }
    .pd-details-content h3 { font-size: 18px; }
    .pd-details-content h4 { font-size: 16px; }
}