/* 修复产品分类标签颜色问题 */
.category-tabs li:not(.active):not(:first-child) {
    background: white !important;
    background-color: white !important;
}

.category-tabs li:first-child.active {
    background: #0056b3 !important;
    background-color: #0056b3 !important;
}

.category-tabs li.active:not(:first-child) {
    background: #83913d !important;
    background-color: #83913d !important;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 自定义滚动条样式 - 模仿比亚迪官网 */
body ::-webkit-scrollbar,
html ::-webkit-scrollbar {
    width: 5px;
}

body ::-webkit-scrollbar-thumb,
html ::-webkit-scrollbar-thumb {
    background: #cccccc;
    border-radius: 3px;
}

body ::-webkit-scrollbar-thumb:hover,
html ::-webkit-scrollbar-thumb:hover {
    background: #999999;
}

body ::-webkit-scrollbar-track,
html ::-webkit-scrollbar-track {
    background: transparent;
}

/* Firefox 滚动条样式 */
html {
    scrollbar-width: thin;
    scrollbar-color: #cccccc transparent;
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    min-height: 100%;
    margin: 0;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, li {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* 图标样式 - 使用伪元素模拟 */
[class^="icon-"] {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 5px;
    position: relative;
    top: 2px;
}

.icon-phone:before {
    content: "☎";
}

.icon-email:before {
    content: "✉";
}

.icon-location:before {
    content: "⌖";
}

.icon-wechat:before {
    content: "W";
}

.icon-qq:before {
    content: "Q";
}

.icon-whatsapp:before {
    content: "📞";
}

.icon-telegram:before {
    content: "✈";
}

.icon-heart:before {
    content: "🧠";
}

.icon-target:before {
    content: "🎯";
}

.icon-shield:before {
    content: "💡";
}

.icon-award:before {
    content: "🏆";
}

.icon-star:before {
    content: "⭐";
}

.icon-mobile:before {
    content: "📱";
}

/* 顶部信息栏 */
.top-bar {
    background-color: #f5f5f5;
    padding: 8px 0;
    font-size: 14px;
    color: #666;
    border-bottom: 1px solid #eee;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info span {
    margin-right: 20px;
}

.social-links a {
    margin-left: 10px;
    color: #666;
}

.social-links a:hover {
    color: #83913d;
}

/* 头部样式 */
.header {
    background: transparent;
    box-shadow: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    padding: 20px 0;
    will-change: background-color, backdrop-filter, box-shadow, padding, transform;
}

/* 滚动后的头部样式 */
.header.scrolled {
    position: fixed;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 25px rgba(0, 0, 0, 0.08), 0 0 1px rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 8px 0;
    transform: translateY(0);
}

/* 滚动时的微妙动画效果 */
.header.scrolling {
    transform: translateY(-3px);
}

.header.scrolling.scrolled {
    transform: translateY(0);
}

.header.scrolled .logo img {
    max-height: 40px;
    transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .nav a {
    color: #ffffff;
    text-shadow: none;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .nav a:hover {
    color: #83913d;
}

.header.scrolled .nav a:after {
    background-color: #83913d;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .mobile-menu span {
    background-color: #333;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 滚动时语言切换器样式调整 */
.header.scrolled .nav .language-link {
    color: #ffffff !important;
}

.header.scrolled .nav .language-link:hover {
    color: #fff !important;
    background: #83913d;
}

/* 添加滚动时的微妙上升动画 */
.header.scrolling-up {
    transform: translateY(-5px);
}

.header.scrolling-down {
    transform: translateY(0);
}

/* 滚动时的额外动画效果 */
.header.scrolling {
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 头部出现动画 */
.header.scrolled {
    animation: slideDown 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 增强logo缩放动画 */
.header .logo img {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .logo img {
    transform: scale(0.85);
}

/* 菜单项悬停增强 */
.header.scrolled .nav a {
    position: relative;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .nav a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #83913d, #9ba548);
    transition: width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header.scrolled .nav a:hover::before {
    width: 100%;
}

/* 为滚动过程添加微妙的加载动画 */
.header.scrolled::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #83913d, transparent);
    opacity: 0;
    animation: headerGlow 0.8s ease-out;
}

@keyframes headerGlow {
    0% {
        opacity: 0;
        transform: translateX(-100%);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* 增强移动端滚动效果 */
@media (max-width: 992px) {
    .header {
        transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .header.scrolled {
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        padding: 5px 0;
    }
    
    .header.scrolled .logo img {
        max-height: 35px;
        transform: scale(0.9);
    }
    
    /* 移动端导航栏动画优化 */
    .header.scrolling {
        transform: translateY(-2px);
    }
    
    .header.scrolled {
        animation: mobileSlideDown 0.25s ease-out;
    }
}

@keyframes mobileSlideDown {
    from {
        transform: translateY(-80%);
        opacity: 0.8;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-right: 50px;
    max-width: calc(100% - 100px);
    padding-left: 20px;
}

.logo {
    margin-right: auto;
    margin-left: 0;
}

.logo img {
    max-height: 80px;
    transition: max-height 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin-right: 15px;
    will-change: max-height, transform;
}

/* 第一个logo图片与左边距协调 */
.logo img:first-child {
    margin-left: 0;
    margin-right: 40px;
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav ul li {
    padding-left: 5px;
    padding-right: 5px;
}

.nav a {
    color: #fff;
    font-size: 14px;
    font-weight: normal;
    padding: 10px 0;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.nav a:hover, .nav a.active {
    color: #fff;
    opacity: 0.8;
}

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

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

/* 语言切换样式 */
.nav .language-switcher {
    display: flex;
    align-items: center;
    margin-left: 20px;
    font-size: 14px;
}

.nav .language-link {
    color: #ffffff !important;
    text-decoration: none;
    padding: 4px 8px;
    transition: all 0.3s ease;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav .language-link:hover {
    color: #0056b3 !important;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 4px;
}

.nav .language-link:after {
    display: none;
}

.nav .language-separator {
    color: #ffffff;
    margin: 0 8px;
    font-weight: 300;
    opacity: 0.7;
}

/* 国旗图标样式 */
.nav .flag-icon {
    width: 18px;
    height: 12px;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.nav .language-link:hover .flag-icon {
    transform: scale(1.1);
}

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

.nav .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 160px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    padding: 8px 0;
    margin: 10px 0 0 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px) scale(0.95);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1000;
    border: none;
    display: block;
    text-align: center;
    overflow: hidden;
    font-size: 0; /* 消除行内元素间的空白 */
    backdrop-filter: blur(10px);
}

.nav .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    margin-top: 10px;
}

.nav .dropdown-menu li {
    list-style: none;
    width: 100%;
    margin: 0;
}

.nav .dropdown-menu li {
    border-bottom: 1px solid #eee;
    margin: 0;
    padding: 0;
    display: block;
}

.nav .dropdown-menu li:last-child {
    border-bottom: none;
}

.nav .dropdown-menu li:first-child a {
    font-weight: 500;
}

.nav .dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: #333;
    font-size: 14px;
    font-weight: 400;
    text-shadow: none;
    border-radius: 4px;
    margin: 2px 8px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-align: center;
    line-height: 1.4;
    width: calc(100% - 16px);
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.nav .dropdown-menu a:hover { 
     background-color: #83913d; 
     color: #fff; 
     opacity: 1; 
     transform: translateX(8px);
     box-shadow: 0 4px 12px rgba(131, 145, 61, 0.3);
 }

.nav .dropdown-menu a:after {
    display: none;
}

/* 下拉菜单项的逐项动画 */
.nav .dropdown-menu li {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.nav .dropdown:hover .dropdown-menu li:nth-child(1) {
    transition-delay: 0.05s;
}

.nav .dropdown:hover .dropdown-menu li:nth-child(2) {
    transition-delay: 0.1s;
}

.nav .dropdown:hover .dropdown-menu li:nth-child(3) {
    transition-delay: 0.15s;
}

.nav .dropdown:hover .dropdown-menu li:nth-child(4) {
    transition-delay: 0.2s;
}

.nav .dropdown:hover .dropdown-menu li:nth-child(5) {
    transition-delay: 0.25s;
}

/* 为菜单项添加微妙的悬停效果 */
.nav .dropdown-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.nav .dropdown-menu a:hover::before {
    transform: translateX(100%);
}

/* 优化导航栏在页面加载时的动画 */
.header {
    animation: slideInDown 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 为移动端菜单项添加微妙的悬停效果 */
@media (max-width: 992px) {
    .nav ul li a {
        transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        border-radius: 6px;
        margin: 2px 8px;
        padding: 14px 12px !important;
    }
    
    .nav ul li a:hover {
        background-color: rgba(131, 145, 61, 0.1);
        transform: translateX(8px);
        color: #83913d !important;
    }
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #fff;
    transition: all 0.3s ease;
}

/* 轮播图样式 */
.hero-slider {
    position: relative;
    height: 100vh;
    width: 100vw;
    margin: 0;
    overflow: hidden;
}

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

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

.slide.active {
    opacity: 1;
}

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

.slide-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: slideInUp 1s ease-out;
}

.slide-content p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    animation: slideInUp 1s ease-out 0.2s both;
}

.slide-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: slideInUp 1s ease-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: normal;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: #83913d;
    color: #f7f1f1;
    border-color: #83913d;
}

.btn-primary:hover {
    background: #003d80;
    border-color: #003d80;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.3);
}

.btn-secondary {
    background: transparent;
    color: black;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #83913d;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* 轮播页码指示器 */
.slider-pagination {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 3;
    font-family: 'Arial', sans-serif;
    font-size: 20px;
    font-weight: 500;
    color: white;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.current-slide {
    font-size: 32px;
    font-weight: 600;
    font-family: 'novecentowide-book';
}

.separator {
    margin: 0 5px;
    opacity: 0.8;
    font-size: 20px;
}

.total-slides {
    opacity: 0.8;
    font-size: 20px;
}

/* 导航按钮 */
.prev-nav, .next-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 70px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    z-index: 3;
}

.prev-nav {
    left: 20px;
}

.next-nav {
    right: 20px;
}

.prev-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) translateX(-5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.next-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* 快速导航 */
.quick-nav {
    background-color: #f8f8f8;
    padding: 40px 0;
    border-bottom: 1px solid #eee;
}

.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.quick-nav-item {
    text-align: center;
    padding: 30px 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.quick-nav-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.quick-nav-icon {
    margin-bottom: 15px;
    font-size: 40px;
    color: #83913d;
}

.quick-nav-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 0;
}

/* 通用部分标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.carousel-slide[data-index="2"] {
    min-height: 450px;
}

.carousel-slide[data-index="2"] .slide-content {
    height: 100%;
}

.carousel-slide[data-index="2"] .slide-image,
.carousel-slide[data-index="2"] .slide-text {
    min-height: 450px;
}

.section-header h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 700;
}

.section-header p {
    font-size: 16px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-line {
    width: 60px;
    height: 3px;
    background-color: #83913d;
    margin: 15px auto 0;
}

/* 实验室网格样式 */
.lab-grid {
    margin: 40px 0;
    padding: 20px;
}

.lab-grid ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.lab-grid li {
    margin: 0;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.lab-grid li:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.lab-grid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.lab-grid a:hover img {
    transform: scale(1.1);
}

/* 数字动画效果 */
@keyframes numberGlow {
    0% {
        text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
        transform: scale(1);
    }
    50% {
        text-shadow: 0 0 30px rgba(0, 212, 255, 0.8), 0 0 40px rgba(0, 212, 255, 0.6);
        transform: scale(1.05);
    }
    100% {
        text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
        transform: scale(1);
    }
}

.stat-number.animated {
    animation: numberGlow 2s ease-out;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .lab-grid ul {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .lab-grid ul {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .lab-grid {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .lab-grid ul {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .lab-grid {
        padding: 10px;
    }
}

/* 关于我们 */
.about-us {
    padding: 60px 0;
    background: #f8f9fa;
    position: relative;
}

.about-us .container {
    position: relative;
    z-index: 2;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 13px;
}

.more-btn, .view-more-btn {
    display: inline-block;
    padding: 8px 35px;
    background-color: #83913d;
    color: #fff;
    border-radius: 30px;
    font-weight: 500;
    font-family: 'novecentowide-book';
    font-size: 12px;
    transition: all 0.3s ease;
}

.more-btn:hover, .view-more-btn:hover {
    background-color: #003d80;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.3);
}

.about-image {
    max-width: 600px;
    margin-left: 140px;
}

.about-image img {
    width: 120%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 产品中心 */
.product-center {
    padding: 60px 0;
    background-color: #fffdfdf9;
}

.product-categories {
    margin-bottom: 30px;
}

.category-tabs {
    display: flex;
    flex-direction: column;
    width: 220px;
    margin-right: 25px;
    margin-bottom: 30px;
    background-color: #fff;
    border: 1px solid #e6e6e6;
    overflow: hidden;
}

.category-tabs li {
    padding: 0;
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 1px solid #e6e6e6;
}

.category-tabs li:first-child.active {
    background-color: #0056b3;
}

.category-tabs li:first-child.active a {
    color: #fff;
    font-weight: bold;
}

.category-tabs li:last-child {
    border-bottom: none;
}

.category-tabs li.active {
    background-color: #f5f5f5;
}

.category-tabs li.active a {
    color: #151718;
    font-weight: 500;
}

.category-tabs li:hover:not(.active):not(:first-child) {
    background-color: #f9f9f9;
}

.category-tabs li:first-child.active a {
    color: #fff !important;
}

.category-tabs li.active a {
    color: #181a1c;
}

.category-tabs li:hover:not(:first-child) a {
    color: #e3e8f1;
}

.category-tabs li:hover:not(.active):not(:first-child) a {
    color: #333;
}

.category-tabs li a {
    display: block;
    padding: 12px 15px;
    color: #333;
    font-weight: 400;
    transition: all 0.3s ease;
    white-space: nowrap;
    font-size: 14px;
    border: none;
    text-decoration: none;
    position: relative;
}

.category-tabs li a:hover {
    color: #0056b3;
}

/* 无产品提示 */
.no-products {
    text-align: center;
    padding: 60px 20px;
    color: #666;
    font-size: 20px;
    grid-column: 1 / -1;
}

.no-products p {
    margin: 0;
}

/* 产品分类导航 */
.product-nav {
    margin: 40px 0;
    padding: 20px 0;
    background: #f8f9fa;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.product-nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 30px;
    color: rgb(32, 30, 30);
    text-decoration: none;
    font-size: 16px;
    font-weight: normal;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.product-nav-item::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: white;
    transition: width 0.3s ease;
}

.product-nav-item:hover::after,
.product-nav-item:focus::after {
    width: 80%;
}

.product-nav-item:hover {
    transform: translateY(-2px);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.nav-separator {
    width: 1px;
    height: 30px;
    background: rgba(255,255,255,0.3);
    margin: 0 10px;
}

/* 产品分类导航 */
.product-nav {
    margin-bottom: 40px;
}

.product-nav-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-nav-item {
    color: black;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 10px 20px;
    position: relative;
    transition: all 0.3s ease;
    z-index: 1;
}

.product-nav-item:hover {
    color: black;
}

.nav-separator {
    width: 1px;
    height: 20px;
    background: rgba(255,255,255,0.3);
    margin: 0 10px;
}

/* 产品分类导航 */
.product-nav {
    margin-bottom: 40px;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.product-nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-nav-item {
    color: black;
    text-decoration: none;
    padding: 15px 25px;
    font-size: 20px;
    font-weight: normal;
    font-family: 'Source Han Sans CN', 'Source Han Sans SC', 'Source Han Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '微软雅黑', 'Heiti SC', '黑体', Arial, sans-serif;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.product-nav-item::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.product-nav-item:hover {
    color: black;
    transform: translateY(-2px);
}

.product-nav-item:hover::after {
    background: #3498db;
    width: 80%;
    opacity: 1;
}

.nav-separator {
    width: 1px;
    height: 30px;
    background: rgba(255,255,255,0.3);
    margin: 0 10px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .product-info h4 {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: repeat(1, 1fr);
    }
}

.product-item {
    background-color: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    border-color: #d9d9d9;
}

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #f0f0f0;
}

.product-image img {
    width: auto;
    max-width: 90%;
    height: auto;
    max-height: 90%;
    object-fit: contain;
    transition: all 0.3s ease;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.product-item:hover .product-overlay {
    opacity: 1;
}

.detail-btn {
    padding: 8px 20px;
    background-color: #fff;
    color: #333;
    border-radius: 2px;
    font-weight: 400;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.detail-btn:hover {
    background-color: #83913d;
    color: #fff;
}

.product-info {
    padding: 15px 10px;
    text-align: center;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #fff;
    width: 100%;
    margin: 0 auto;
}

.product-info h4 {
    font-size: 15px;
    margin-bottom: 8px;
    color: #333;
    line-height: 1.4;
    word-break: normal;
    word-wrap: break-word;
    height: auto;
    overflow: hidden;
    font-weight: 500;
    width: 100%;
    text-align: center;
}

.product-info p {
    color: #666;
    font-size: 13px;
    line-height: 1.4;
    word-break: normal;
    word-wrap: break-word;
    margin-bottom: 0;
    width: 100%;
    text-align: center;
}

.view-more-container {
    text-align: center;
    margin-top: 30px;
}

/* 企业数据统计 */
.company-stats {
    padding: 80px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.company-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23ffffff" stroke-width="0.1" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 60px;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    color: #83913d;
    position: relative;
    padding: 30px 20px;
    border-radius: 15px;
    background: rgba(131, 145, 61, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(131, 145, 61, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-10px);
    background: rgba(131, 145, 61, 0.1);
    box-shadow: 0 20px 40px rgba(131, 145, 61, 0.3);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: #83913d;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
    text-shadow: 0 0 20px rgba(131, 145, 61, 0.5);
}

.stat-label {
    font-size: 16px;
    color: #83913d;
    margin-bottom: 5px;
    font-weight: 500;
    letter-spacing: 1px;
}

.stat-unit {
    font-size: 12px;
    color: #83913d;
    font-weight: 600;
    letter-spacing: 2px;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .company-stats {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .stat-label {
        font-size: 14px;
    }
}

/* 技术优势 */
.technical-advantages {
    padding: 60px 0;
    background-color: #fff;
}

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

.advantage-item {
    text-align: center;
    padding: 30px 20px;
    background-color: #f8f8f8;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.advantage-icon {
    font-size: 40px;
    color: #0056b3;
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.advantage-item p {
    color: #777;
    font-size: 14px;
}

/* 新闻中心 */
.news-center {
    padding: 60px 0;
    background-color: #f8f8f8;
}

.news-tabs {
    margin-bottom: 30px;
}

.news-tabs ul {
    display: flex;
    justify-content: center;
    gap: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}

.news-tabs li {
    position: relative;
    padding: 0 10px;
}

.news-tabs li:after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: #0056b3;
    transition: width 0.3s ease;
}

.news-tabs li.active:after, .news-tabs li:hover:after {
    width: 100%;
}

.news-tabs a {
    font-size: 16px;
    color: #666;
    font-weight: 500;
}

.news-tabs li.active a, .news-tabs li:hover a {
    color: #0056b3;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.news-item:hover .news-image img {
    transform: scale(1.1);
}

.news-date {
    color: #6b7280;
    font-size: 14px;
    margin: 10px 0 0 0;
    text-align: left;
}

.news-content {
    padding: 20px;
}

.news-content h4 {
    margin-bottom: 10px;
}

.news-content h4 a {
    color: #333;
    font-size: 18px;
    transition: all 0.3s ease;
    font-family: 'Source Han Sans CN', 'Source Han Sans SC', 'Source Han Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '微软雅黑', 'Heiti SC', '黑体', Arial, sans-serif;
}

.news-content h4 a:hover {
    color: #83913d;
}

.news-content p {
    color: #777;
    margin-bottom: 12px;
    line-height: 1.6;
    font-size: 13px;
}

.read-more {
    color: #83913d;
    font-weight: 500;
    position: relative;
    padding-right: 20px;
}

.read-more:after {
    content: '→';
    position: absolute;
    right: 0;
    top: 0;
    transition: all 0.3s ease;
}

.read-more:hover:after {
    right: -5px;
}

/* 页脚 */
.footer {
    background-color: #3a3a3a;
    color: #fff;
}

.footer-main {
    padding: 40px 0 30px;
}

.footer-main .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-content {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

/* 联系信息部分 */
.footer-contact {
    flex: 1;
    max-width: 300px;
    margin-top: -20px;
    margin-left: 80px;
}

.contact-info h4 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #fff;
    font-weight: 400;
    border-bottom: 2px solid #d4af37;
    padding-bottom: 10px;
    display: inline-block;
}

.contact-details {
    margin-bottom: 25px;
    width: 600px;
}

.contact-item {
    margin-bottom: 15px;
}

.contact-item p {
    margin-bottom: 5px;
    color: #fff;
    font-size: 14px;
    line-height: 1.6;
}

/* 导航链接部分 */
.footer-navigation {
    flex: 2;
    position: relative;
    margin-left: 280px;
}

.nav-header {
    position: absolute;
    top: -30px;
    right: 0;
    display: flex;
    gap: 20px;
    align-items: center;
    font-size: 14px;
    color: #999;
}

.nav-subtitle {
    color: #666;
    font-size: 12px;
}

.nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    max-width: 500px;
}

.nav-item {
    background-color: #4a4a4a;
    border-radius: 25px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background-color: #5a5a5a;
    transform: translateY(-2px);
}

.nav-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.nav-item a span {
    flex: 1;
}

.nav-item a .arrow {
    font-size: 20px;
    color: #999;
    transition: all 0.3s ease;
}

.nav-item:hover a .arrow {
    color: #fff;
    transform: translateX(5px);
}

.qr-code {
    text-align: center;
}

.qr-code img {
    width: 120px;
    height: 120px;
    margin-bottom: 10px;
}

.qr-code p {
    color: #ccc;
    font-size: 14px;
}

.footer-bottom {
    background-color: #1a252f;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: #95a5a6;
    font-size: 14px;
    margin: 0;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-contact {
        max-width: 100%;
    }
    
    .footer-navigation {
        width: 100%;
    }
    
    .nav-header {
        position: static;
        margin-bottom: 20px;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-grid {
        max-width: 100%;
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .footer-main {
        padding: 30px 0 20px;
    }
    
    .footer-main .container {
        padding: 0 15px;
    }
    
    .contact-info h4 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .nav-item a {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .nav-item a .arrow {
        font-size: 18px;
    }
}

/* 动画效果 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .product-grid,
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .product-nav-container {
        flex-wrap: wrap;
    }
    
    .product-nav-item {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .nav-separator {
        display: none;
    }
    
    .quick-nav-grid,
    .product-grid,
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-content,
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .about-us {
        background-attachment: scroll;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .hero-slider {
        height: 400px;
    }
    
    .slide-content h1 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
}

/* 页面标题 */
.page-header {
    background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.1)), url('../imgs/other_bg_imgs/bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 180px 0 120px;
    border-bottom: 1px solid #eee;
    position: relative;
    min-height: 400px;
}

.page-title {
    text-align: center;
    display: block;
}

.page-title h1 {
    font-size: 42px;
    color: #fff;
    margin-bottom: 15px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.breadcrumb {
    color: #fff;
    font-size: 16px;
    opacity: 0.9;
}

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

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

/* 公司简介 */
.company-intro {
    padding: 60px 0;
    background-color: #fff;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.intro-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #555;
}

.intro-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 企业文化 */
.company-culture {
    padding: 60px 0;
    background-color: #f8f8f8;
}

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

.culture-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.culture-icon {
    font-size: 40px;
    color: #0056b3;
    margin-bottom: 20px;
}

.culture-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
}

/* 发展历程 */
.company-history {
    padding: 60px 0;
    background-color: #fff;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 30px 0;
}

.timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background-color: #0056b3;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: #0056b3;
    color: #fff;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 700;
    z-index: 2;
}

.timeline-content {
    width: 45%;
    background-color: #f8f8f8;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 55%;
}

.timeline-content:before {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background-color: #0056b3;
    border-radius: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content:before {
    right: -35px;
}

.timeline-item:nth-child(even) .timeline-content:before {
    left: -35px;
}

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

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

/* 荣誉资质 */
.honors {
    padding: 60px 0;
    background-color: #f8f8f8;
}

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

.honor-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.honor-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.honor-image {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

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

.honor-item h4 {
    font-size: 16px;
    color: #333;
}

/* 产品分类 */
.products-showcase {
    padding: 30px 0 50px;
    background-color: #f9f9f9;
}

.products-container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    gap: 25px;
    align-items: flex-start;
}

.products-content {
    flex: 1;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
    padding-bottom: 40px;
}

.page-btn {
    display: inline-block;
    padding: 10px 15px;
    background-color: #f8f8f8;
    color: #666;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
    background-color: #0056b3;
    color: #fff;
}

.page-btn.next,
.page-btn.prev {
    padding: 10px 20px;
}

/* 产品展示响应式设计 */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .products-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .category-tabs {
        width: 100%;
        margin-right: 0;
        margin-bottom: 20px;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
        background: none;
        box-shadow: none;
    }
    
    .category-tabs li {
        border: 1px solid #ddd;
        border-radius: 20px;
        border-bottom: 1px solid #ddd;
        margin-bottom: 0;
    }
    
    .category-tabs li:first-child {
        background-color: #e74c3c;
        border-color: #e74c3c;
    }
    
    .category-tabs li a {
        padding: 8px 15px;
        font-size: 12px;
    }
    
    .product-nav {
        padding: 15px;
    }
    
    .product-nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .product-nav-item {
        padding: 10px 15px;
        font-size: 14px;
        min-width: auto;
        width: 100%;
        text-align: center;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .product-nav-container {
        flex-direction: column;
    }
    
    .product-nav-item {
        padding: 10px 15px;
        font-size: 13px;
        text-align: center;
        width: 100%;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .page-btn {
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .product-nav {
        padding: 10px;
    }
    
    .product-nav-item {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .page-btn {
        font-size: 14px;
    }
    
    .page-btn.next,
    .page-btn.prev {
        padding: 8px 15px;
    }
}

/* 产品优势 */
.product-advantages {
    padding: 60px 0;
    background-color: #f8f8f8;
}

/* 图标 - 添加更多图标 */
.icon-tech:before {
    content: "T";
}

.icon-test:before {
    content: "✓";
}

.icon-innovation:before {
    content: "★";
}

.icon-integrity:before {
    content: "✓";
}

.icon-environment:before {
    content: "♲";
}

.icon-oil:before {
    content: "O";
}

.icon-coolant:before {
    content: "C";
}

.icon-brake:before {
    content: "B";
}

.icon-special:before {
    content: "S";
}

.icon-time:before {
    content: "⏱";
}

/* 联系信息 */
.contact-info-section {
    padding: 60px 0;
    background-color: #fff;
}

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

.contact-item {
    text-align: center;
    padding: 30px 20px;
    background-color: #f8f8f8;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.contact-icon {
    font-size: 40px;
    color: #0056b3;
    margin-bottom: 20px;
}

.contact-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.contact-item p {
    color: #666;
    margin-bottom: 5px;
}

/* 联系表单 */
.contact-form-section {
    padding: 60px 0;
    background-color: #f8f8f8;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #83913d;
}

.form-submit {
    text-align: center;
    margin-top: 20px;
}

.submit-btn {
    background-color: #0056b3;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: #003d80;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.3);
}

/* 地图 */
.map-section {
    padding: 60px 0;
    background-color: #fff;
}

.map-container {
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background-color: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.map-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.map-content p {
    color: #666;
    margin-bottom: 5px;
}

/* 企业风采样式 */
.company-style {
    padding: 60px 0;
    background-color: #fff;
}

.style-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.gallery-item {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.gallery-caption {
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.gallery-caption::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #83913d, #9ba548, #83913d);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.gallery-caption h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    position: relative;
}

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

/* 企业风采文字描述 */
.style-description {
    margin-top: 50px;
    padding: 40px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    border-left: 5px solid #83913d;
}

.style-description h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 600;
}

.style-description p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 16px;
}

/* 企业文化页面样式 */
.corporate-culture {
    padding: 20px 0;
    background: #f8f9fa;
    min-height: 600px;
}

/* 面包屑导航 */
.breadcrumb {
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #007bff;
    text-decoration: none;
}

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

/* 主要内容区域 */
.culture-main {
    display: flex;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 左侧导航 */
.culture-sidebar {
    flex: 0 0 200px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    height: fit-content;
}

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

.culture-nav-list li {
    border-bottom: 1px solid #eee;
}

.culture-nav-list li:last-child {
    border-bottom: none;
}

.culture-nav-list a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}

.culture-nav-list a:hover,
.culture-nav-list a.active {
    background: #007bff;
    color: white;
}

/* 右侧内容区域 */
.culture-content {
    flex: 1;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
}

/* 文化导航标签 */
.culture-tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.culture-nav-item {
    flex: 1;
    padding: 15px 20px;
    text-align: center;
    cursor: pointer;
    border-right: 1px solid #eee;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #666;
}

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

.culture-nav-item:hover,
.culture-nav-item.active {
    background: #83913d;
    color: white;
}

/* 文化内容展示区域 */
.culture-display {
    padding: 50px;
}

.culture-content-item {
    display: none;
}

.culture-content-item.active {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    animation: fadeInUp 0.5s ease;
}

.culture-image-container {
    flex: 0 0 350px;
}

.culture-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.2);
}

.culture-text-content {
    flex: 1;
}

.culture-text-content h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 25px;
    border-bottom: 2px solid #007bff;
    padding-bottom: 12px;
    display: inline-block;
}

.culture-description {
    font-size: 18px;
    line-height: 1.8;
    color: #555;
}

.culture-description p {
    margin-bottom: 18px;
}

.culture-description p:first-child {
    font-weight: 600;
    color: #007bff;
    font-size: 18px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .style-gallery {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
    }
    
    .culture-grid,
    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline:before {
        left: 30px;
    }
    
    .timeline-year {
        left: 30px;
        transform: none;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 80px;
        margin-right: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-content:before,
    .timeline-item:nth-child(even) .timeline-content:before {
        left: -35px;
        right: auto;
    }
    
    .culture-main {
        flex-direction: column;
    }
    
    .culture-sidebar {
        flex: none;
        margin-bottom: 20px;
    }
    
    .culture-nav-list {
        display: flex;
        overflow-x: auto;
    }
    
    .culture-nav-list li {
        border-bottom: none;
        border-right: 1px solid #eee;
        white-space: nowrap;
    }
    
    .culture-tabs {
        flex-wrap: wrap;
    }
    
    .culture-nav-item {
        flex: none;
        min-width: 80px;
        font-size: 14px;
        padding: 10px 15px;
    }
    
    .culture-content-item.active {
        flex-direction: column;
        gap: 20px;
    }
    
    .culture-image-container {
        flex: none;
        width: 100%;
    }
    
    .culture-display {
        padding: 20px;
    }
    
    .culture-text-content h3 {
        font-size: 20px;
    }
    
    .culture-description {
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .style-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .gallery-item img {
        height: 200px;
    }
    
    .gallery-caption {
        padding: 20px;
    }
    
    .style-description {
        padding: 25px;
        margin-top: 30px;
    }
    
    .intro-content,
    .culture-grid,
    .honors-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title h1 {
        font-size: 28px;
    }
    
    .timeline-content {
        padding: 15px;
    }
    
    .culture-nav-list {
        flex-direction: column;
    }
    
    .culture-nav-list li {
        border-right: none;
        border-bottom: 1px solid #eee;
    }
    
    .culture-nav-list a {
        padding: 15px;
    }
    
    .culture-tabs {
        flex-direction: column;
    }
    
    .culture-nav-item {
        border-right: none;
        border-bottom: 1px solid #eee;
        min-width: auto;
    }
    
    .culture-nav li:last-child .nav-item {
        border-bottom: none;
    }
    
    .culture-image {
        height: 200px;
    }
    
    .culture-text {
        padding: 20px;
    }
    
    .culture-text h3 {
        font-size: 20px;
    }
    
    .culture-description p {
        font-size: 14px;
    }
}

/* 新闻详情页样式 */
.news-detail {
    padding: 60px 0;
}

.news-detail-content {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    padding: 30px;
    margin-bottom: 40px;
}

.news-header {
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.news-header h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
}

.news-meta {
    display: flex;
    gap: 20px;
    color: #777;
    font-size: 14px;
}

.news-meta span {
    display: flex;
    align-items: center;
}

.news-meta i {
    margin-right: 5px;
}

.news-body {
    margin-bottom: 30px;
}

.news-featured-image {
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
}

.news-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.news-text {
    line-height: 1.8;
    color: #444;
}

.news-text h3 {
    font-size: 22px;
    color: #333;
    margin: 25px 0 15px;
    font-weight: 600;
}

.news-text p {
    margin-bottom: 15px;
}

/* 企业文化标签图标样式 */
.culture-nav-item i {
    margin-right: 8px;
    font-size: 16px;
}

/* 公司简介图片展示区域 */
.company-images {
    margin-top: 40px;
    margin-bottom: 30px;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.image-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.image-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .image-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .image-gallery {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .company-images {
        margin-top: 30px;
        margin-bottom: 20px;
    }
}

/* 图片放大模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    padding-top: 100px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease-in-out;
}

.modal-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 900px;
    max-height: 85%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease-in-out;
}

#caption {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 900px;
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: 150px;
    font-size: 16px;
    line-height: 1.5;
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
}

.gallery-item img {
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: scale(0.8); }
    to { transform: scale(1); }
}

/* 响应式设计 */
@media only screen and (max-width: 700px) {
    .modal-content {
        width: 100%;
    }
    
    #caption {
        width: 100%;
    }
    
    .close {
        top: 10px;
        right: 20px;
        font-size: 30px;
    }
}

/* 公司简介页面样式 */
.content-section {
    padding: 20px 0;
    background: #f8f9fa;
}

.content-wrapper {
    display: flex;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.breadcrumb-wrapper {
    width: 200px;
    flex-shrink: 0;
}

.breadcrumb {
    font-size: 12px;
    color: #666;
    margin-bottom: 20px;
    padding: 10px;
    background: #fff;
    border-radius: 4px;
}

.breadcrumb a {
    color: #0066cc;
    text-decoration: none;
}

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

.sidebar-nav {
    background: #fff;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sidebar-nav .nav-item {
    display: block;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s ease;
}

.sidebar-nav .nav-item:hover {
    background-color: #f0f0f0;
}

.sidebar-nav .nav-item.active {
    background-color: #0066cc;
    color: #fff;
}

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

.main-content {
    flex: 1;
    background: #fff;
    padding: 30px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.company-intro-content {
    line-height: 1.8;
    color: #333;
}

.company-intro-content p {
    margin-bottom: 20px;
    text-align: justify;
    font-size: 14px;
}

.company-intro-content img {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 轮播图样式 */
.tech-carousel {
    position: relative;
    max-width: 1100px;
    margin: 0 auto 70px;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,86,179,0.15), 0 8px 25px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    background-color: #f8f9fa;
}

.tech-carousel::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(45deg, #83913d, #9ba548, #83913d);
    border-radius: 17px;
    z-index: -1;
    opacity: 0.25;
    animation: borderGlow 4s ease-in-out infinite alternate;
}

@keyframes borderGlow {
    0% {
        opacity: 0.25;
        transform: scale(1);
    }
    100% {
        opacity: 0.5;
        transform: scale(1.001);
    }
}

.carousel-container {
    position: relative;
    width: 100%;
    height: fit-content;
    border-radius: 20px;
    overflow: hidden;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
}

.slide-content {
    display: flex;
    width: 100%;
    height: 100%;
    position: relative;
    min-height: 420px;
}

.slide-image {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.slide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.slide-image:hover img {
    transform: scale(1.03);
}

.slide-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,86,179,0.3), rgba(0,61,128,0.5));
    z-index: 1;
}

.slide-text {
    flex: 1;
    background: linear-gradient(135deg, #83913d, #9ba548);
    color: white;
    padding: 40px 35px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    min-height: auto;
}

.advantage-number {
    font-size: 5rem;
    font-weight: 800;
    opacity: 0.15;
    position: absolute;
    top: 20px;
    right: 25px;
    line-height: 1;
    color: rgba(255,255,255,0.5);
    font-family: 'Arial', sans-serif;
}

.slide-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    z-index: 2;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    text-align: left;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.slide-text p {
    font-size: 1.05rem;
    line-height: 1.7;
    opacity: 0.9;
    position: relative;
    z-index: 2;
    text-align: left;
    margin-bottom: 0;
    max-width: 90%;
}

.slide-text::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    width: 5px;
    height: 80px;
    background: linear-gradient(to bottom, #ffffff, rgba(255,255,255,0.3));
    border-radius: 3px;
}

/* 轮播控制按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 22px;
    color: #0056b3;
    transition: all 0.3s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.carousel-btn:hover {
    background: #ffffff;
    color: #0077cc;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(1);
}

.carousel-btn.prev {
    left: 15px;
}

.carousel-btn.next {
    right: 15px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .slide-content {
        min-height: 380px;
    }
    
    .slide-text {
        padding: 30px 25px;
    }
    
    .slide-text h3 {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    
    .advantage-number {
        font-size: 4rem;
    }
}

@media (max-width: 768px) {
    .slide-content {
        flex-direction: column;
        min-height: auto;
    }
    
    .slide-image {
        height: 250px;
    }
    
    .slide-text {
        padding: 25px 20px;
    }
    
    .slide-text h3 {
        font-size: 1.5rem;
        margin-bottom: 12px;
    }
    
    .slide-text p {
        font-size: 1rem;
        max-width: 100%;
    }
    
    .advantage-number {
        font-size: 3.5rem;
        top: 15px;
        right: 15px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
    background: rgba(255,255,255,0.25);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.6);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.indicator:hover {
    background: #ffffff;
    transform: scale(1.1);
}

.indicator.active {
    background: #0056b3;
    transform: scale(1.2);
    box-shadow: 0 2px 8px rgba(0,86,179,0.3);
}

.indicator.active::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .carousel-container {
        height: 550px;
    }
    
    .slide-text {
        padding: 40px 30px;
    }
    
    .slide-text h3 {
        font-size: 1.6rem;
    }
    
    .slide-text p {
        font-size: 0.95rem;
    }
    
    .advantage-number {
        font-size: 3rem;
        top: 12px;
        right: 20px;
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        flex-direction: column;
        gap: 20px;
    }
    
    .breadcrumb-wrapper {
        width: 100%;
    }
    
    .sidebar-nav {
        display: flex;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .sidebar-nav .nav-item {
        border-bottom: none;
        border-right: 1px solid #eee;
        flex-shrink: 0;
    }
    
    .sidebar-nav .nav-item:last-child {
        border-right: none;
    }
    
    .main-content {
        padding: 20px;
    }

    /* 轮播图移动端样式 */
    .carousel-container {
        height: auto;
        min-height: 300px;
    }

    .slide-content {
        flex-direction: column;
    }

    .slide-image {
        flex: 0 0 auto;
        height: 200px;
    }

    .slide-text {
        flex: 0 0 auto;
        padding: 25px 20px;
    }

    .slide-text h3 {
        font-size: 1.4rem;
        margin-bottom: 12px;
    }

    .slide-text p {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .advantage-number {
        font-size: 2.5rem;
        top: 8px;
        right: 15px;
    }
    
    .slide-text::before {
        height: 40px;
        width: 3px;
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
        font-size: 20px;
        left: 10px;
    }
    
    .carousel-btn.next {
        right: 10px;
    }
    
    .carousel-indicators {
        bottom: 15px;
        padding: 8px 15px;
    }
    
    .indicator {
        width: 12px;
        height: 12px;
    }
}

@media (max-width: 480px) {
    .carousel-container {
        height: auto;
        min-height: 250px;
    }

    .slide-image {
        flex: 0 0 auto;
        height: 150px;
    }

    .slide-text {
        flex: 0 0 auto;
        padding: 20px 15px;
    }

    .slide-text h3 {
        font-size: 1.2rem;
        margin-bottom: 10px;
    }

    .slide-text p {
        font-size: 0.85rem;
        line-height: 1.4;
    }

    .advantage-number {
        font-size: 2rem;
        top: 5px;
        right: 10px;
    }
    
    .slide-text::before {
        height: 30px;
        width: 2px;
    }
    
    .carousel-btn {
        width: 45px;
        height: 45px;
        font-size: 18px;
        left: 5px;
    }
    
    .carousel-btn.next {
        right: 5px;
    }
    
    .carousel-indicators {
        bottom: 10px;
        padding: 6px 12px;
        gap: 8px;
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
}

/* 技术优势轮播图样式 */
.technical-advantages {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 600;
}

.section-header p {
    font-size: 20px;
    color: #7f8c8d;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.section-line {
    width: 60px;
    height: 3px;
    background: #83913d;
    margin: 0 auto;
}

.tech-carousel {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.carousel-slides {
    position: relative;
    height: 350px; /* 增加高度以避免文字重叠 */
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    background-color: #f8f8f8;
    border: 1px solid #ddd;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.slide-content {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 30px;
    box-sizing: border-box;
}

.slide-image {
    flex: 0 0 35%;
    position: relative;
    margin-right: 20px;
}

.slide-image img {
    width: 100%;
    height: auto;
    border: 5px solid #007bff; /* 蓝色边框 */
    box-sizing: border-box;
}

.slide-image::before {
    content: '';
    position: absolute;
    bottom: -10px;
    left: -10px;
    width: 50px;
    height: 50px;
    background: #dc3545; /* 红色角 */
    z-index: -1;
}

.slide-text {
    flex: 1;
}

.advantage-number {
    font-size: 40px;
    color: #dc3545;
    font-weight: bold;
    margin-bottom: 10px;
}

.slide-text h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.4;
}

.slide-text p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 10px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 30px;
    color: #999;
    cursor: pointer;
    z-index: 10;
}

.carousel-btn.prev {
    left: -40px;
}

.carousel-btn.next {
    right: -40px;
}

.carousel-btn:hover {
    color: #333;
}

/* 移除指示器，因为参考中未显示 */
/* .carousel-indicators { display: none; } */

/* 研发实验室样式 */
.research-lab {
    padding: 80px 0;
    background: white;
}

.lab-content {
    max-width: 1200px;
    margin: 0 auto;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.lab-item {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.lab-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.lab-image {
    margin-right: 25px;
}

.lab-image img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 10px;
}

.lab-info h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 8px;
    font-weight: 600;
}

.lab-info p {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.5;
}

/* 轮播图响应式设计 */
@media (max-width: 768px) {
    .slide-content {
        flex-direction: column;
        padding: 40px 30px;
        text-align: center;
    }
    
    .slide-image {
        margin-right: 0;
        margin-bottom: 30px;
    }
    
    .slide-text {
        padding-left: 0;
    }
    
    .slide-text h3 {
        font-size: 24px;
    }
    
    .lab-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .lab-item {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .slide-content {
        padding: 30px 20px;
    }
    
    .slide-text h3 {
        font-size: 20px;
    }
    
    .slide-text p {
        font-size: 14px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* 塑料制品车间页面样式 */
.plastic-workshop {
    padding: 60px 0;
    background: #f8f9fa;
}

.plastic-workshop .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 车间介绍 */
.workshop-intro {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    margin-bottom: 40px;
    overflow: hidden;
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px;
}

.intro-text {
    flex: 1;
}

.intro-text h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 25px;
    font-weight: 700;
    position: relative;
}

.intro-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #83913d, #9ba548);
    border-radius: 2px;
}

.intro-description p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 15px;
}

.intro-image {
    flex: 0 0 400px;
}

.intro-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: 8px;
}

/* 设备与产能 */
.equipment-capacity {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.equipment-capacity h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.capacity-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.equipment-info h4,
.capacity-info h4 {
    font-size: 20px;
    color: #0056b3;
    margin-bottom: 20px;
    font-weight: 600;
}

.equipment-list,
.capacity-list {
    list-style: none;
    padding: 0;
}

.equipment-list li,
.capacity-list li {
    background: #f8f9fa;
    padding: 15px 20px;
    margin-bottom: 12px;
    border-radius: 8px;
    border-left: 4px solid #83913d;
    font-size: 15px;
    line-height: 1.6;
}

.capacity-list strong {
    color: #0056b3;
    font-weight: 700;
}

/* 产品应用 */
.product-application {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.product-application h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.application-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,86,179,0.15);
    border-color: #83913d;
}

.application-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

.application-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

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

/* 产品规格 */
.product-specs {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.product-specs h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.specs-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 25px;
    text-align: center;
}

.specs-range {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.spec-item {
    background: linear-gradient(135deg, #83913d, #9ba548);
    color: #fff;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
}

.spec-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
}

.spec-item p {
    font-size: 16px;
    opacity: 0.9;
}

/* 合作优势 */
.cooperation-advantages {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.cooperation-advantages h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.advantage-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.advantage-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,86,179,0.12);
    border-color: #0056b3;
}

.advantage-icon {
    font-size: 40px;
    margin-bottom: 15px;
    display: block;
}

.advantage-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 600;
}

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

/* 企业理念 */
.company-philosophy {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
    margin-bottom: 40px;
}

.company-philosophy h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
}

.philosophy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.philosophy-item {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 25px;
    border-radius: 12px;
    border-left: 5px solid #83913d;
}

.philosophy-item h4 {
    font-size: 18px;
    color: #0056b3;
    margin-bottom: 12px;
    font-weight: 600;
}

.philosophy-item p {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
    font-style: italic;
}

/* 联系合作 */
.contact-cooperation {
    background: linear-gradient(135deg, #0056b3, #007bff);
    color: #fff;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
}

.cooperation-text h3 {
    font-size: 28px;
    margin-bottom: 25px;
    font-weight: 700;
}

.cooperation-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    opacity: 0.95;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
        text-align: center;
    }
    
    .intro-image {
        flex: none;
        max-width: 500px;
    }
    
    .capacity-content {
        grid-template-columns: 1fr;
    }
    
    .application-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .plastic-workshop {
        padding: 40px 0;
    }
    
    .intro-content,
    .equipment-capacity,
    .product-application,
    .product-specs,
    .cooperation-advantages,
    .company-philosophy,
    .contact-cooperation {
        padding: 25px;
    }
    
    .intro-text h2 {
        font-size: 26px;
    }
    
    .equipment-capacity h3,
    .product-application h3,
    .product-specs h3,
    .cooperation-advantages h3,
    .company-philosophy h3 {
        font-size: 24px;
    }
    
    .application-grid,
    .advantages-grid,
    .philosophy-content {
        grid-template-columns: 1fr;
    }
    
    .specs-range {
        grid-template-columns: 1fr;
    }
    
    .intro-image {
        max-width: 100%;
    }
    
    .intro-image img {
        height: 200px;
    }
}

.news-text ul, .news-text ol {
    margin: 15px 0;
    padding-left: 20px;
}

.news-text li {
    margin-bottom: 8px;
    list-style-type: disc;
}

.news-text ol li {
    list-style-type: decimal;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}

.news-tags a {
    display: inline-block;
    background: #f5f5f5;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    color: #666;
    margin-right: 8px;
    margin-top: 5px;
}

.news-tags a:hover {
    background: #0056b3;
    color: #fff;
}

.news-share {
    display: flex;
    align-items: center;
}

.news-share a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f5f5f5;
    color: #666;
    margin-left: 8px;
    transition: all 0.3s ease;
}

.news-share a:hover {
    background: #0056b3;
    color: #fff;
}

.news-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.prev-news, .next-news {
    max-width: 48%;
}

.prev-news a, .next-news a {
    display: flex;
    align-items: center;
    color: #666;
    font-size: 15px;
}

.prev-news a:hover, .next-news a:hover {
    color: #0056b3;
}

.prev-news i, .next-news i {
    font-size: 18px;
}

.related-news {
    margin-top: 50px;
}

.related-news h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    position: relative;
    padding-left: 15px;
}

.related-news h3:before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    height: 70%;
    width: 4px;
    background: #0056b3;
}

/* 产品详情页样式 */
.product-detail {
    padding: 60px 0;
}

.product-detail-content {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.product-gallery {
    width: 45%;
}

.main-image {
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
}

.main-image img {
    width: 100%;
    height: auto;
    display: block;
}

.thumbnail-gallery {
    display: flex;
    gap: 10px;
}

.thumbnail {
    width: 80px;
    height: 80px;
    border: 1px solid #eee;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.thumbnail.active, .thumbnail:hover {
    opacity: 1;
    border-color: #0056b3;
}

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

.product-info {
    width: 55%;
}

.product-info h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
}

.product-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    color: #777;
    font-size: 14px;
}

.product-rating {
    margin-bottom: 20px;
}

.stars {
    color: #f8b84e;
    font-size: 18px;
}

.rating-count {
    color: #777;
    font-size: 14px;
    margin-left: 5px;
}

.product-price {
    margin-bottom: 20px;
}

.price {
    font-size: 24px;
    color: #e53935;
    font-weight: 600;
}

.original-price {
    font-size: 16px;
    color: #999;
    text-decoration: line-through;
    margin-left: 10px;
}

.product-short-desc {
    margin-bottom: 20px;
    line-height: 1.6;
    color: #555;
}

.product-specs {
    margin-bottom: 30px;
}

.product-specs h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.product-specs ul {
    list-style: none;
}

.product-specs li {
    margin-bottom: 8px;
    color: #555;
}

.product-specs li strong {
    color: #333;
    margin-right: 5px;
}

.product-actions {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.qty-btn {
    width: 36px;
    height: 36px;
    background: #f5f5f5;
    border: none;
    cursor: pointer;
    font-size: 18px;
}

.qty-input {
    width: 50px;
    height: 36px;
    border: none;
    text-align: center;
    font-size: 16px;
}

.add-to-cart, .add-to-inquiry {
    padding: 10px 25px;
}

.product-share {
    display: flex;
    align-items: center;
    margin-top: 20px;
}

.product-share span {
    margin-right: 15px;
    color: #666;
}

.product-share a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #f5f5f5;
    color: #666;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.product-share a:hover {
    background: #0056b3;
    color: #fff;
}

.product-tabs {
    margin-bottom: 60px;
}

.tabs-header {
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}

.tabs-nav {
    display: flex;
    gap: 5px;
}

.tabs-nav li {
    margin-bottom: -1px;
}

.tabs-nav a {
    display: block;
    padding: 12px 25px;
    font-size: 16px;
    color: #666;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    background: #f5f5f5;
}

.tabs-nav li.active a {
    color: #0056b3;
    background: #fff;
    border-color: #eee;
}

.tab-pane {
    display: none;
    padding: 20px;
    background: #fff;
    border-radius: 0 0 8px 8px;
}

.tab-pane.active {
    display: block;
}

.tab-pane h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.content-block {
    margin-bottom: 30px;
}

.content-block p {
    margin-bottom: 15px;
    line-height: 1.7;
    color: #555;
}

.content-block h4 {
    font-size: 18px;
    color: #333;
    margin: 25px 0 15px;
}

.content-block ul, .content-block ol {
    margin: 15px 0;
    padding-left: 20px;
}

.content-block li {
    margin-bottom: 8px;
    color: #555;
}

.product-images, .usage-images {
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.specs-table th, .specs-table td {
    padding: 12px 15px;
    border: 1px solid #eee;
    text-align: left;
}

.specs-table th {
    background: #f5f5f5;
    font-weight: 600;
    color: #333;
}

.specs-table tr:nth-child(even) {
    background: #fafafa;
}

.review-summary {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.average-rating {
    text-align: center;
    padding-right: 40px;
    border-right: 1px solid #eee;
}

.rating-number {
    font-size: 48px;
    font-weight: 600;
    color: #333;
    line-height: 1;
}

.rating-stars {
    font-size: 24px;
    color: #f8b84e;
    margin: 10px 0;
}

.total-reviews {
    color: #777;
    font-size: 14px;
}

.rating-distribution {
    flex: 1;
}

.rating-bar {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.rating-level {
    width: 40px;
    font-size: 14px;
    color: #777;
}

.bar-container {
    flex: 1;
    height: 12px;
    background: #f0f0f0;
    border-radius: 10px;
    margin: 0 10px;
}

.bar {
    height: 100%;
    background: #0056b3;
    border-radius: 10px;
}

.rating-percent {
    width: 40px;
    font-size: 14px;
    color: #777;
    text-align: right;
}

.review-list {
    margin-bottom: 30px;
}

.review-item {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.reviewer-info {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.reviewer-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 10px;
}

.reviewer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reviewer-name {
    font-weight: 500;
    color: #333;
}

.review-date {
    margin-left: auto;
    color: #999;
    font-size: 14px;
}

.review-rating {
    color: #f8b84e;
    margin-bottom: 10px;
}

.review-content p {
    color: #555;
    line-height: 1.6;
}

.review-pagination {
    margin: 30px 0;
    text-align: center;
}

.write-review {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
}

.write-review h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
}

.review-form .form-group {
    margin-bottom: 15px;
}

.rating-select {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
}

.rating-select input {
    display: none;
}

.rating-select label {
    font-size: 24px;
    color: #ddd;
    cursor: pointer;
    transition: color 0.3s ease;
}

.rating-select label:hover,
.rating-select label:hover ~ label,
.rating-select input:checked ~ label {
    color: #f8b84e;
}

.subscribe-section {
    background: #0056b3;
    padding: 40px 0;
    color: #fff;
    margin-top: 60px;
}

.subscribe-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.subscribe-text h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.subscribe-text p {
    opacity: 0.8;
}

.subscribe-form {
    width: 50%;
}

.subscribe-form form {
    display: flex;
    gap: 10px;
}

.subscribe-form input {
    flex: 1;
    height: 50px;
    padding: 0 20px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
}

.subscribe-btn {
    background: #fff;
    color: #0056b3;
    border: none;
    padding: 0 30px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.subscribe-btn:hover {
    background: #f5f5f5;
}

@media (max-width: 992px) {
    .product-detail-content {
        flex-direction: column;
    }
    
    .product-gallery,
    .product-info {
        width: 100%;
    }
    
    .subscribe-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .subscribe-form {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .news-footer,
    .news-navigation {
        flex-direction: column;
        gap: 15px;
    }
    
    .prev-news, 
    .next-news {
        max-width: 100%;
    }
    
    .review-summary {
        flex-direction: column;
        gap: 20px;
    }
    
    .average-rating {
        padding-right: 0;
        border-right: none;
        padding-bottom: 20px;
        border-bottom: 1px solid #eee;
    }
    
    .tabs-nav {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .hero-slider {
        height: 400px;
    }
    
    .slide-content h1 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .category-tabs {
        flex-direction: column;
        align-items: center;
    }
}

/* 页面标题 */
.page-header {
    background-color: #ffffff;
    padding: 60px 0 30px;
    border-bottom: 1px solid #eee;
}

.page-title {
    text-align: center;
}

.page-title h1 {
    font-size: 32px;
    color: #333;
    margin-bottom: 15px;
}

.breadcrumb {
    color: #777;
    font-size: 14px;
}

.breadcrumb a {
    color: #0056b3;
}

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

/* 公司简介 */
.company-intro {
    padding: 60px 0;
    background-color: #fff;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.intro-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #555;
}

.intro-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 企业文化 */
.company-culture {
    padding: 60px 0;
    background-color: #f8f8f8;
}

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

.culture-item {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.culture-icon {
    font-size: 40px;
    color: #0056b3;
    margin-bottom: 20px;
}

.culture-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
}

/* 发展历程 */
.company-history {
    padding: 60px 0;
    background-color: #fff;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 30px 0;
}

.timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background-color: #0056b3;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: #0056b3;
    color: #fff;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 700;
    z-index: 2;
}

.timeline-content {
    width: 45%;
    background-color: #f8f8f8;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 55%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 55%;
}

.timeline-content:before {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background-color: #0056b3;
    border-radius: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content:before {
    right: -35px;
}

.timeline-item:nth-child(even) .timeline-content:before {
    left: -35px;
}

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

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

/* 荣誉资质 */
.honors {
    padding: 60px 0;
    background-color: #f8f8f8;
}

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

.honor-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.honor-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.honor-image {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

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

.honor-item h4 {
    font-size: 16px;
    color: #333;
}

/* 产品分类 */
.products-showcase {
    padding: 40px 0 60px;
    background-color: #fff;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.page-btn {
    display: inline-block;
    padding: 10px 15px;
    background-color: #f8f8f8;
    color: #666;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
    background-color: #0056b3;
    color: #fff;
}

.page-btn.next {
    padding: 10px 20px;
}

/* 产品优势 */
.product-advantages {
    padding: 60px 0;
    background-color: #f8f8f8;
}

/* 图标 - 添加更多图标 */
.icon-tech:before {
    content: "T";
}

.icon-test:before {
    content: "✓";
}

.icon-innovation:before {
    content: "★";
}

.icon-integrity:before {
    content: "✓";
}

.icon-environment:before {
    content: "♲";
}

.icon-oil:before {
    content: "O";
}

.icon-coolant:before {
    content: "C";
}

.icon-brake:before {
    content: "B";
}

.icon-special:before {
    content: "S";
}

.icon-time:before {
    content: "⏱";
}

/* 联系信息 */
.contact-info-section {
    padding: 60px 0;
    background-color: #fff;
}

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

.contact-item {
    text-align: center;
    padding: 30px 20px;
    background-color: #f8f8f8;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.contact-icon {
    font-size: 40px;
    color: #0056b3;
    margin-bottom: 20px;
}

.contact-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.contact-item p {
    color: #666;
    margin-bottom: 5px;
}

/* 联系表单 */
.contact-form-section {
    padding: 60px 0;
    background-color: #f8f8f8;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0056b3;
}

.form-submit {
    text-align: center;
    margin-top: 20px;
}

.submit-btn {
    background-color: #0056b3;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: #003d80;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 86, 179, 0.3);
}

/* 地图 */
.map-section {
    padding: 60px 0;
    background-color: #fff;
}

.map-container {
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background-color: #f8f8f8;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.map-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.map-content p {
    color: #666;
    margin-bottom: 5px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .culture-grid,
    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline:before {
        left: 30px;
    }
    
    .timeline-year {
        left: 30px;
        transform: none;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 80px;
        margin-right: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-content:before,
    .timeline-item:nth-child(even) .timeline-content:before {
        left: -35px;
        right: auto;
    }
}

@media (max-width: 768px) {
    .intro-content,
    .culture-grid,
    .honors-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title h1 {
        font-size: 28px;
    }
    
    .timeline-content {
        padding: 15px;
    }
}

/* 新闻详情页样式 */
.news-detail {
    padding: 60px 0;
}

.news-detail-content {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    padding: 30px;
    margin-bottom: 40px;
}

.news-header {
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.news-header h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
}

.news-meta {
    display: flex;
    gap: 20px;
    color: #777;
    font-size: 14px;
}

.news-meta span {
    display: flex;
    align-items: center;
}

.news-meta i {
    margin-right: 5px;
}

.news-body {
    margin-bottom: 30px;
}

.news-featured-image {
    margin-bottom: 25px;
    border-radius: 8px;
    overflow: hidden;
}

.news-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.news-text {
    line-height: 1.8;
    color: #444;
}

.news-text h3 {
    font-size: 22px;
    color: #333;
    margin: 25px 0 15px;
    font-weight: 600;
}

.news-text p {
    margin-bottom: 15px;
}
/* --- Global override: unify logo scaling like index.html --- */
.logo img { max-height: 70px !important; transition: all 0.3s ease; }
.header.scrolled .logo img { max-height: 35px !important; }

/* --- Fix: keep dropdown menu text readable when header is scrolled --- */
.header.scrolled .dropdown-menu a { color: #000000 !important; }
.header.scrolled .dropdown-menu a:hover { color: #000000 !important; }
/* 通用分栏轮播：左图右文布局（按技术优势页样式） */
.split-carousel {
  max-width: 1000px;
  margin: 0 auto 50px;
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  background: #ffffff;
  height: 420px;
}
.split-carousel .carousel-track {
  display: flex;
  height: 100%;
}
.split-carousel .carousel-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  align-items: stretch;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}
.split-carousel .slide-image { width: 62%; position: relative; margin-right: 20px; }
.split-carousel .slide-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
/* 红色装饰条 */
.split-carousel .slide-image::after { content: ''; position: absolute; left: 20px; right: -20px; bottom: -20px; height: 18px; background: #e82011; }
.split-carousel .slide-image::before { content: ''; position: absolute; top: 15%; right: -20px; width: 18px; height: 70%; background: #e82011; }

.split-carousel .slide-content {
  width: 38%;
  padding: 40px 30px;
  background: #ffffff;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-left: 5px;
}
/* 文字区左侧细分隔线 */
.split-carousel .slide-content::before { content: ''; position: absolute; left: -10px; top: 20%; width: 70px; height: 2px; background: #999; }
.split-carousel .slide-number { position: absolute; top: 30px; right: 30px; font-size: 4rem; font-weight: 900; color: #83913d; opacity: 0.1; line-height: 1; }
.split-carousel .slide-title { font-size: 2.2rem; font-weight: 700; color: #0056b3; margin-bottom: 25px; line-height: 1.2; }
.split-carousel .slide-description { font-size: 1.1rem; line-height: 1.8; color: #555; margin: 0; overflow-y: auto; max-height: 320px; }

/* 控制按钮与指示器复用站点样式，仅做细节调优 */
.split-carousel .carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); width: 50px; height: 50px; border: none; border-radius: 50%; background: rgba(255, 255, 255, 0.9); color: #0056b3; font-size: 24px; cursor: pointer; transition: all 0.3s ease; display: flex; align-items: center; justify-content: center; pointer-events: auto; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); }
.split-carousel .carousel-btn:hover { background: #fff; transform: translateY(-50%) scale(1.1); box-shadow: 0 6px 25px rgba(0,0,0,0.15); }
.split-carousel .prev-btn { left: 20px; }
.split-carousel .next-btn { right: 20px; }
.split-carousel .carousel-indicators { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 10; }
.split-carousel .indicator { width: 12px; height: 12px; border-radius: 50%; background: rgba(0,0,0,0.3); cursor: pointer; transition: all 0.3s ease; }
.split-carousel .indicator.active { background: #83913d; transform: scale(1.3); }

/* 响应式 */
@media (max-width: 1024px) { .split-carousel { height: 360px; } .split-carousel .slide-title { font-size: 1.8rem; margin-bottom: 15px; } .split-carousel .slide-description { font-size: 1rem; max-height: 250px; } }
@media (max-width: 768px) {
  .split-carousel { height: auto; }
  .split-carousel .carousel-slide { flex-direction: column; height: auto; }
  .split-carousel .slide-image { width: 100%; height: 280px; margin-right: 0; }
  .split-carousel .slide-image::before, .split-carousel .slide-image::after, .split-carousel .slide-content::before { display: none; }
  .split-carousel .slide-content { width: 100%; height: auto; padding: 30px 20px 50px; margin-left: 0; }
  .split-carousel .slide-number { font-size: 3rem; top: 15px; right: 15px; }
  .split-carousel .carousel-btn { width: 40px; height: 40px; font-size: 18px; }
  .split-carousel .prev-btn { left: 10px; }
  .split-carousel .next-btn { right: 10px; }
}
@media (max-width: 480px) {
  .split-carousel .slide-image { height: 220px; }
  .split-carousel .slide-content { padding: 25px 15px 40px; }
  .split-carousel .slide-number { font-size: 2.5rem; top: 10px; right: 10px; }
  .split-carousel .slide-title { font-size: 1.4rem; margin-bottom: 10px; }
  .split-carousel .slide-description { font-size: 0.9rem; line-height: 1.5; }
  .split-carousel .carousel-indicators { bottom: 10px; }
  .split-carousel .indicator { width: 10px; height: 10px; }
}

/* === Footer unified styles (from index.html) === */
.footer-main {
    background: #111827;
    color: #cbd5e1;
    padding: 40px 0;
}
.footer .container {
    max-width: 1400px;
    padding-left: 16px;
    padding-right: 16px;
}
.footer-content {
    display: grid;
    grid-template-columns: 1.1fr 2fr;
    gap: 28px;
    align-items: start;
}
.footer-contact .contact-info h4 {
    color: #ffffff;
    margin: 0 0 12px 0;
    font-size: 16px;
}
.footer-contact .contact-details .contact-item p {
    margin: 6px 0;
    color: #e5e7eb;
    font-size: 14px;
}
.footer-navigation {
    flex: 1 1 520px;
}
.footer-navigation .nav-groups {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}
.footer-navigation .nav-group h5 {
    margin: 0 0 10px 0;
    font-size: 15px;
    color: #ffffff;
}
.footer-navigation .nav-group ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-navigation .nav-group li {
    line-height: 1.6;
}
.footer-navigation a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 14px;
}
.footer-navigation a:hover {
    color: #ffffff;
    text-decoration: underline;
}
.footer-bottom {
    background: #0b1220;
    color: #94a3b8;
    padding: 12px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}
@media (max-width: 1200px) {
    .footer-content { grid-template-columns: 1fr 1.6fr; }
    .footer-navigation .nav-groups { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
    .footer-content { grid-template-columns: 1fr; }
    .footer-navigation .nav-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
    .footer-content { gap: 20px; }
    .footer-navigation .nav-groups { grid-template-columns: 1fr; }
}

/* Reset legacy footer paddings/margins to unify spacing */
.footer { padding: 0 !important; background: transparent; }
.footer-contact { margin: 0 !important; max-width: none; }
.footer-navigation { margin: 0 !important; position: static; }

/* Ensure footer layout matches news.html across all pages */
.footer .footer-main .footer-content {
    display: grid;
    grid-template-columns: 1.1fr 2fr;
    gap: 28px;
    align-items: start;
}
.footer .footer-navigation .nav-groups {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}
.footer .footer-bottom {
    background: #0b1220;
    color: #94a3b8;
    padding: 12px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

@media (max-width: 1200px) {
    .footer .footer-main .footer-content { grid-template-columns: 1fr 1.6fr; }
    .footer .footer-navigation .nav-groups { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
    .footer .footer-main .footer-content { grid-template-columns: 1fr; }
    .footer .footer-navigation .nav-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
    .footer .footer-main .footer-content { gap: 20px; }
    .footer .footer-navigation .nav-groups { grid-template-columns: 1fr; }
}

/* Products page (#oil) - set first tab active color to #83913d */
#oil .category-tabs li:first-child.active {
    background: #83913d !important;
    background-color: #83913d !important;
    border-color: #83913d !important;
}
#oil .category-tabs li:first-child.active a {
    color: #fff !important;
}

/* Products pages - unify first tab active color to #83913d */
.products-showcase .category-tabs li:first-child.active {
    background: #83913d !important;
    background-color: #83913d !important;
    border-color: #83913d !important;
}
.products-showcase .category-tabs li:first-child.active a {
    color: #fff !important;
}

/* News detail: simplify prev/next navigation (500-558.html) */

@media (max-width: 768px) {

}