/* ==================== 全局 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, li {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ==================== 容器 ==================== */
.container {
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
}


/* ==================== 头部导航 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
}

/* LOGO */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 50px;
    width: auto;
}

/* LOGO白色版本 - 滚动时显示 */
.header:not(.scrolled) .logo-light,
.header.scrolled .logo-dark {
    display: none;
}

.header:not(.scrolled) .logo-dark,
.header.scrolled .logo-light {
    display: block;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

/* LOGO */
.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

/* 主导航 */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-list {
    display: flex;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 28px 22px;
    font-size: 16px;
    color: #333;
    transition: all 0.3s ease;
}

/* 悬停效果：加粗 + 下划线 */
.nav-link:hover,
.nav-item.current > .nav-link {
    font-weight: 700;
    color: #333;
}

.nav-item > .nav-link:hover::after,
.nav-item.current > .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 22px;
    right: 22px;
    height: 2px;
    background: #0f62ea;
}

/* 下拉箭头 */
.arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform 0.3s;
}

.nav-item:hover .arrow {
    transform: rotate(180deg);
}

/* ==================== 二级菜单 ==================== */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    padding: 10px 0;
    z-index: 9999;
}

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

.submenu li a {
    display: block;
    padding: 12px 24px;
    font-size: 14px;
    color: #333;
    transition: all 0.3s ease;
}

.submenu li a:hover {
    background: #f0f5ff;
    color: #0f62ea;
    padding-left: 30px;
}

/* ==================== 搜索框 ==================== */
.search-wrapper {
    margin-left: 30px;
}

.search-form {
    display: flex;
    align-items: stretch;
}

.search-input {
    width: 120px;
    padding: 9px 15px;
    border: 2px solid #0f62ea;
    border-right: none;
    border-radius: 20px 0 0 20px;
    font-size: 14px;
    outline: none;
    background: #0f62ea;
    color: #fff;
}

.search-btn {
    width: 40px;
    height: 40px;
    background: #0f62ea;
    border: 2px solid #0f62ea;
    border-left: none;
    border-radius: 0 20px 20px 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.search-btn svg {
    width: 18px;
    height: 18px;
    stroke: #fff;
}

.search-btn:hover {
    background: #0f62ea;
}

.search-btn:hover svg {
    stroke: #fff;
}

/* ==================== 移动端菜单按钮 ==================== */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

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

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

/* ==================== 全屏轮播 ==================== */
.banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

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

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

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

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

/* 指示器 */
.banner-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

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

.dot.active {
    width: 40px;
    border-radius: 6px;
    background: #fff;
}

/* 左右箭头 */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.3s ease;
}

.banner-arrow svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

.banner-arrow:hover {
    background: #0f62ea;
}

.banner-arrow.prev {
    left: 30px;
}

.banner-arrow.next {
    right: 30px;
}

/* ==================== 产品中心 ==================== */
.products-section {
    padding: 60px 0;
    background: url('../img/cpbj.jpg') no-repeat center center;
    background-size: cover;
    text-align: center;
}

/* ==================== 关于我们 ==================== */
.about-section {
    padding: 60px 0;
    background: url('../img/jjbj.jpg') no-repeat center center;
    background-size: cover;
    text-align: center;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
    text-align: left;
    margin-top: 40px;
}

.about-left {
    flex: 1;
}

.about-left-inner {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

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

.about-company {
    font-size: 24px;
    font-weight: bold;
    color: #0f62ea;
    margin-bottom: 20px;
}

.about-desc {
    font-size: 15px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 30px;
}

.about-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: #0f62ea;
    color: #fff;
    border-radius: 25px;
    font-size: 14px;
    text-decoration: none;
    transition: background 0.3s;
}

.about-more:hover {
    background: #0a4dc4;
}

.about-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon {
    width: 50px;
    height: 50px;
}

.stat-number {
    font-size: 28px;
    font-weight: bold;
    color: #000;
    line-height: 1;
}

.stat-unit {
    font-size: 16px;
}

.stat-plus {
    font-size: 20px;
}

.stat-label {
    font-size: 13px;
    color: #333;
    font-weight: 500;
    margin-top: 5px;
}

/* ==================== 企业资质 ==================== */
.qualification-section {
    padding: 60px 0;
    background: url('../img/rybj.jpg') no-repeat center center;
    background-size: cover;
    text-align: center;
}

.qualification-scroll {
    overflow: hidden;
    margin-top: 40px;
    padding: 20px 0;
}

.qualification-track {
    display: flex;
    gap: 20px;
    animation: scroll-left 30s linear infinite;
    width: max-content;
}

.qualification-item {
    flex-shrink: 0;
    width: 260px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.qualification-item:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2), 0 8px 20px rgba(0, 0, 0, 0.1);
}

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

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.qualification-scroll:hover .qualification-track {
    animation-play-state: paused;
}

@media (max-width: 768px) {
    .about-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-top: 30px;
    }

    .stat-item {
        justify-content: center;
    }
}

.about-right {
    flex: 1;
}

.about-video {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #f0f0f0;
}

.about-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.play-btn svg {
    width: 24px;
    height: 24px;
    fill: #0f62ea;
    margin-left: 4px;
}

@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    .about-left, .about-right {
        width: 100%;
    }
}

.products-title {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.products-title-line {
    width: 30px;
    height: 1px;
    background: #0f62ea;
    margin: 0 auto 40px;
}

.products-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    width: 100%;
}

.product-item {
    padding: 12px 5px;
    border: 1px solid #333;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    color: #333;
    transition: all 0.3s ease;
    text-align: center;
    flex: 1;
    min-width: 0;
}

@media (max-width: 768px) {
    .products-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .product-item {
        flex: none;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

.product-item:hover {
    background: #0f62ea;
    border-color: #0f62ea;
    color: #fff;
}

/* 产品网格 - 两行四列 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

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

.product-card:hover {
    background: #0f62ea;
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(15, 98, 234, 0.3);
}

.product-card:hover .product-card-name {
    color: #fff;
}

.product-card-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.product-card-name {
    padding: 15px 10px;
    font-size: 16px;
    color: #333;
    transition: color 0.3s ease;
}

.product-item.active {
    background: #0f62ea;
    border-color: #0f62ea;
    color: #fff;
}

/* ==================== 响应式 ==================== */

/* 笔记本 */
@media (max-width: 1400px) {
    .container {
        padding: 0 30px;
    }
    .search-wrapper {
        display: none;
    }

    .nav-link {
        padding: 28px 18px;
        font-size: 15px;
    }
}

/* 平板 */
@media (max-width: 1200px) {
    .nav-link {
        padding: 28px 14px;
        font-size: 14px;
    }

    .search-box.active .search-input {
        width: 160px;
    }
}

/* 大平板 */
@media (max-width: 1024px) {
    .header-inner {
        height: 70px;
    }

    .logo img {
        height: 48px;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

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

    .nav-list {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-item > .nav-link:hover::after {
        display: none;
    }

    .nav-link {
        padding: 15px 30px;
        font-size: 16px;
    }

    .submenu {
        position: relative;
        box-shadow: none;
        padding: 0;
        display: none;
        background: #f8f9fa;
    }

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

    .submenu li a {
        padding: 12px 50px;
    }

    .search-wrapper {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .banner-arrow {
        width: 40px;
        height: 40px;
    }

    .banner-arrow.prev {
        left: 15px;
    }

    .banner-arrow.next {
        right: 15px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .qualification-item {
        width: 180px;
    }
    .container {
        padding: 0 20px;
    }
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .logo img {
        height: 42px;
    }

    .banner {
        height: 350px;
        min-height: 350px;
    }

    .banner-dots {
        bottom: 25px;
    }

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

    .dot.active {
        width: 30px;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .qualification-item {
        width: 160px;
    }

    .logo img {
        height: 36px;
    }

    .menu-toggle {
        width: 24px;
        height: 18px;
    }

    .banner {
        height: 280px;
        min-height: 280px;
    }

    .banner-arrow {
        width: 36px;
        height: 36px;
    }

    .banner-arrow svg {
        width: 20px;
        height: 20px;
    }

    .products-title {
        font-size: 22px;
    }

    .products-title-line {
        width: 24px;
        margin-bottom: 25px;
    }
}

/* 生产设备区域 */
.equipment-section {
    padding: 60px 0;
    background: #fff;
    text-align: center;
}

.equipment-scroll {
    overflow: hidden;
    margin-top: 40px;
    padding: 20px 0;
}

.equipment-track {
    display: flex;
    gap: 20px;
    animation: scroll-left 25s linear infinite;
    width: max-content;
}

.equipment-item {
    flex-shrink: 0;
    width: calc((100vw - 200px) / 3);
    max-width: 400px;
    min-width: 250px;
    text-decoration: none;
    display: block;
}

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

.equipment-item img {
    width: 100%;
    height: auto;
    display: block;
}

.equipment-item .equipment-name {
    padding: 15px 10px;
    text-align: center;
    font-size: 16px;
    color: #333;
}

/* 行业应用区 */
.application-section {
    width: 100%;
    height: auto;
    min-height: 800px;
    position: relative;
    background-color: #0f62ea;
    background-image: url('../img/yybj.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
    padding: 50px 0;
}

.application-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    z-index: 1;
    background-color: transparent;
}

.application-col {
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    height: 800px;
}

.application-col::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
    z-index: 1;
    transition: opacity 0.3s ease;
    background: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.3));
}

.application-col::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.application-col:nth-child(1)::after {
    background-image: url('../img/yy1.jpg');
}

.application-col:nth-child(2)::after {
    background-image: url('../img/yy2.jpg');
}

.application-col:nth-child(3)::after {
    background-image: url('../img/yy3.jpg');
}

.application-col:nth-child(4)::after {
    background-image: url('../img/yy4.jpg');
}

.application-col:nth-child(5)::after {
    background-image: url('../img/yy5.jpg');
}

.application-col:hover::before {
    opacity: 0;
}

.application-col:hover::after {
    opacity: 1;
}

.application-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding: 0;
    text-align: center;
    padding-bottom: 50px;
}

.application-icon {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 20px;
    transition: opacity 0.3s ease;
}

.application-col:hover .application-icon {
    opacity: 0;
}

.application-text {
    background: rgba(255, 255, 255, 0);
    padding: 30px 50px;
    border-radius: 0;
    width: 100%;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    transition: background 0.3s ease;
}

.application-text-cn {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 8px 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    transition: color 0.3s ease;
}

.application-text-en {
    font-size: 16px;
    font-weight: 400;
    color: #fff;
    margin: 0 0 12px 0;
    font-family: 'Arial', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
    position: relative;
}

.application-text-en::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background: linear-gradient(to right, transparent, #000, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.application-text p {
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    margin: 20px 0 0 0;
    text-align: left;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.3s ease, max-height 0.3s ease;
}

.application-col:hover .application-text {
    background: rgba(255, 255, 255, 0.5);
}

.application-col:hover .application-text-cn {
    color: #333;
}

.application-col:hover .application-text-en {
    color: #333;
}

.application-col:hover .application-text-en::after {
    opacity: 1;
}

.application-col:hover .application-text p {
    opacity: 1;
    max-height: 500px;
}

.application-section .products-title {
    color: #fff;
}

.application-section .products-title-line {
    background: #fff;
}

.application-section .application-container {
    position: relative;
    z-index: 2;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
    padding-top: 20px;
    text-align: center;
}

/* ==================== 新闻资讯区 ==================== */
.news-section {
    padding: 60px 0;
    background: #fff;
    text-align: center;
}

.news-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.news-tab {
    padding: 10px 25px;
    border: 1px solid #0f62ea;
    border-radius: 25px;
    font-size: 15px;
    color: #0f62ea;
    transition: all 0.3s ease;
    text-decoration: none;
}

.news-tab span {
    margin-left: 5px;
}

.news-tab:hover,
.news-tab.active {
    background: #0f62ea;
    color: #fff;
}

.news-content {
    display: flex;
    gap: 30px;
    text-align: left;
}

.news-left {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.news-featured {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
}

.news-featured img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: 0;
    margin-bottom: 0;
}

.news-featured-info {
    padding: 20px;
    flex: 1;
}

.news-featured-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-featured-date {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
}

.news-featured-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.news-item {
    display: flex;
    gap: 0;
    padding: 0;
    background: #f6f6f6;
    border-radius: 0;
    text-decoration: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

.news-item:hover {
    background: #e8e8e8;
}

.news-item-date {
    flex-shrink: 0;
    width: 90px;
    height: 100%;
    background: #0f62ea;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.date-day {
    display: block;
    font-size: 28px;
    font-weight: bold;
    line-height: 1;
}

.date-month {
    display: block;
    font-size: 13px;
    margin-top: 4px;
}

.news-item-info {
    flex: 1;
    min-width: 0;
    padding: 20px 15px;
}

.news-item-title {
    font-size: 15px;
    font-weight: bold;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-item-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 768px) {
    .news-content {
        flex-direction: column;
    }

    .news-featured img {
        height: auto;
    }

    .news-tabs {
        gap: 10px;
        margin-bottom: 25px;
    }

    .news-tab {
        padding: 8px 18px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .news-section {
        padding: 40px 0;
    }

    .news-item {
        padding: 15px;
        gap: 12px;
        align-items: stretch;
    }

    .news-item-date {
        width: 55px;
        padding: 8px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-self: stretch;
    }

    .date-day {
        font-size: 18px;
    }

    .date-month {
        font-size: 10px;
    }

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

    .news-item-title {
        font-size: 14px;
    }
}

.equipment-scroll:hover .equipment-track {
    animation-play-state: paused;
}

@media (max-width: 768px) {
    .application-col {
        flex: 0 0 50%;
        height: 280px;
    }

    .application-col:nth-child(1),
    .application-col:nth-child(2),
    .application-col:nth-child(3),
    .application-col:nth-child(4),
    .application-col:nth-child(5) {
        height: 280px;
    }

    .application-content {
        padding-bottom: 0;
        justify-content: flex-end;
    }

    .application-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 15px;
    }

    .application-text-cn {
        font-size: 18px;
        margin-bottom: 6px;
    }

    .application-text-en {
        font-size: 12px;
        margin-bottom: 0;
    }

    .application-text {
        padding: 20px 15px;
        min-height: auto;
    }
}

@media (max-width: 480px) {
    .application-col {
        flex: 0 0 50%;
        height: 220px;
    }

    .application-col:nth-child(5) {
        flex: 0 0 100%;
        height: 220px;
    }

    .application-content {
        padding-bottom: 15px;
    }

    .application-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 10px;
    }

    .application-text-cn {
        font-size: 14px;
        margin-bottom: 4px;
    }

    .application-text-en {
        font-size: 9px;
    }

    .application-text {
        padding: 15px 10px;
    }
}

/* 页脚 */
.footer {
    position: relative;
    background: url('../img/fo.jpg') no-repeat center center;
    background-size: cover;
    padding: 50px 0 25px;
    color: #fff;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding-bottom: 35px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-left {
    flex: 1;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-info {
    font-size: 13px;
    margin: 8px 0;
    color: #fff;
}

.footer-center {
    text-align: center;
    flex: 0 0 160px;
}

.footer-title {
    font-size: 16px;
    font-weight: normal;
    color: #fff;
    margin: 10px 0 0 0;
}

.footer-qrcode {
    width: 110px;
    height: 110px;
    background: #fff;
    padding: 6px;
    border-radius: 4px;
}

.footer-right {
    flex: 1;
    max-width: 500px;
}

.footer-nav {
    display: flex;
    justify-content: flex-end;
    gap: 80px;
}

.footer-col h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col li {
    margin-bottom: 8px;
}

.footer-col a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: #ccc;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    font-size: 12px;
    color: #fff;
}

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

.footer-bottom a:hover {
    text-decoration: underline;
}

/* 移动端页脚 */
@media (max-width: 768px) {
    .footer {
        padding: 35px 0 20px;
    }

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

    .footer-left {
        flex: none;
        order: 2;
    }

    .footer-logo {
        height: 45px;
    }

    .footer-center {
        order: 1;
        flex: none;
    }

    .footer-center img,
    .footer-center p {
        display: none;
    }

    .footer-right {
        order: 3;
        max-width: 100%;
    }

    .footer-nav {
        justify-content: center;
        gap: 30px;
    }

    .footer-bottom {
        font-size: 11px;
        line-height: 1.6;
    }
}

/* ==================== 页面通用 Banner ==================== */
.page-banner {
    position: relative;
    height: 250px;
    margin-top: 80px;
    overflow: hidden;
}

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

.page-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.35) 100%);
}

.page-banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 1;
}

.page-banner-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.page-banner-subtitle {
    font-size: 18px;
    letter-spacing: 4px;
    opacity: 0.9;
}

/* ==================== 面包屑导航 ==================== */
.breadcrumb-container {
    background: #f5f5f5;
    padding: 15px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #666;
}

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

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

.breadcrumb-sep {
    margin: 0 10px;
    color: #999;
}

.breadcrumb-current {
    color: #0066cc;
}

/* ==================== 页面主体 - 左右分栏 ==================== */
.page-main-section {
    padding: 40px 0 60px;
}

.page-main-layout {
    display: flex;
    gap: 40px;
}

/* 左侧栏目导航 */
.page-sidebar {
    width: 240px;
    flex-shrink: 0;
}

.page-sidebar-title {
    font-size: 18px;
    color: #333;
    font-weight: bold;
    padding-bottom: 15px;
    margin-bottom: 20px;
    border-bottom: 2px solid #0066cc;
}

.page-sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #f8f8f8;
    border-radius: 4px;
    overflow: hidden;
}

.page-sidebar-item {
    border-bottom: 1px solid #eee;
}

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

.page-sidebar-item a {
    display: block;
    padding: 14px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.page-sidebar-item a:hover,
.page-sidebar-item.active a {
    background: #0066cc;
    color: #fff;
}

/* 右侧内容区 */
.page-content {
    flex: 1;
    min-width: 0;
}

/* 左侧栏目样式 */
.products-grid-section {
    padding: 0;
}

/* 右侧内容区产品网格 - 3列 */
.page-content .products-grid {
    grid-template-columns: repeat(3, 1fr);
    margin-top: 0;
}

/* 响应式 - 768px以下显示2列 */
@media (max-width: 768px) {
    .page-content .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

/* 响应式 */
@media (max-width: 1024px) {
    .page-main-layout {
        flex-direction: column;
        gap: 30px;
    }
    
    .page-sidebar {
        width: 100%;
    }
    
    .page-sidebar-nav {
        display: flex;
        flex-wrap: wrap;
    }
    
    .page-sidebar-item {
        border-bottom: none;
    }
    
    .page-sidebar-item a {
        padding: 10px 16px;
    }
    
    .products-grid-section .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

/* ==================== 单页内容 ==================== */
.single-content {
    padding: 20px 0;
}

.single-content h2 {
    font-size: 28px;
    color: #333;
    border-bottom: 2px solid #0066cc;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.single-body {
    line-height: 1.8;
    color: #666;
}

.single-body h3 {
    font-size: 20px;
    color: #333;
    margin: 25px 0 15px;
    padding-left: 10px;
    border-left: 4px solid #0066cc;
}

.single-body p {
    margin-bottom: 15px;
}

.single-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
}

.single-body ul {
    list-style: none;
    padding-left: 0;
}

.single-body ul li {
    padding: 5px 0 5px 20px;
    position: relative;
}

.single-body ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #0066cc;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.pagination-item:hover {
    background: #0066cc;
    border-color: #0066cc;
    color: #fff;
}

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

.pagination-item.prev,
.pagination-item.next {
    padding: 0 16px;
}

/* ==================== 产品详情页 ==================== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.product-detail-gallery {
    display: flex;
    align-items: flex-start;
}

.product-detail-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.product-detail-thumbs {
    display: flex;
    gap: 10px;
}

.product-detail-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.product-detail-thumb:hover,
.product-detail-thumb.active {
    border-color: #0066cc;
}

.product-detail-info {
    padding: 20px 0;
}

.product-detail-title {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
}

.product-detail-model {
    font-size: 14px;
    color: #999;
    margin-bottom: 20px;
}

.product-detail-desc {
    color: #666;
    line-height: 1.8;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid #eee;
}

.product-detail-specs {
    list-style: none;
    padding: 0;
    margin: 0 0 30px;
}

.product-detail-specs li {
    padding: 8px 0;
    font-size: 14px;
    color: #666;
    border-bottom: 1px dashed #eee;
}

.product-detail-specs li strong {
    color: #333;
    font-weight: 500;
}

.product-detail-inquiry {
    display: flex;
    gap: 15px;
}

.product-inquiry-btn {
    display: inline-block;
    padding: 14px 40px;
    background: #0066cc;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    transition: background 0.3s;
}

.product-inquiry-btn:hover {
    background: #0055aa;
}

.product-back-btn {
    display: inline-block;
    padding: 14px 30px;
    background: #f5f5f5;
    color: #333;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    transition: background 0.3s;
}

.product-back-btn:hover {
    background: #eee;
}

/* 产品详情内容区 */
.product-detail-content {
    margin-top: 40px;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
}

.product-detail-tabs {
    display: flex;
    background: #f8f8f8;
    border-bottom: 1px solid #eee;
}

.product-detail-tab {
    padding: 15px 30px;
    color: #666;
    text-decoration: none;
    font-size: 15px;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

.product-detail-tab:hover,
.product-detail-tab.active {
    color: #0066cc;
    background: #fff;
    border-bottom-color: #0066cc;
}

.product-detail-body {
    padding: 30px;
    line-height: 2;
}

.product-detail-body h3 {
    font-size: 18px;
    color: #333;
    margin: 25px 0 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.product-detail-body h3:first-child {
    margin-top: 0;
}

.product-detail-body p {
    color: #666;
    margin-bottom: 10px;
}

/* 相关产品 */
.related-products-section {
    padding: 40px 0 60px;
    background: #f8f8f8;
}

/* 响应式 */
@media (max-width: 1024px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-detail-gallery {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .page-banner {
        height: 180px;
        margin-top: 60px;
    }
    
    .page-banner-title {
        font-size: 32px;
    }
    
    .page-banner-subtitle {
        font-size: 14px;
    }
    
    .product-detail-title {
        font-size: 22px;
    }
    
    .product-detail-inquiry {
        flex-direction: column;
    }
    
    .product-inquiry-btn,
    .product-back-btn {
        text-align: center;
    }
}

/* ==================== 搜索结果页 ==================== */
.search-page-header {
    margin-bottom: 30px;
}

.search-box-form {
    display: flex;
    border: 2px solid #0066cc;
    border-radius: 4px;
    overflow: hidden;
}

.search-box-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    font-size: 15px;
    outline: none;
}

.search-box-form button {
    padding: 12px 30px;
    background: #0066cc;
    color: #fff;
    border: none;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.3s;
}

.search-box-form button:hover {
    background: #0052a3;
}

.search-results {
    border-top: 1px solid #eee;
}

.search-results-title {
    font-size: 15px;
    color: #666;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.search-results-title span {
    color: #0066cc;
    font-weight: bold;
}

.search-keyword {
    color: #e74c3c;
    font-weight: bold;
}

.search-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
    transition: background 0.3s;
}

.search-item:hover {
    background: #f9f9f9;
}

.search-item-img {
    width: 160px;
    height: 110px;
    object-fit: cover;
    border-radius: 6px;
    flex-shrink: 0;
}

.search-item-content {
    flex: 1;
}

.search-item-title {
    font-size: 17px;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.search-item-title a {
    color: #333;
    text-decoration: none;
}

.search-item-title a:hover {
    color: #0066cc;
}

.search-item-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-item-meta {
    margin-top: 8px;
    font-size: 13px;
    color: #999;
}

.search-item-meta span {
    margin-right: 20px;
}

@media (max-width: 768px) {
    .search-box-form {
        flex-direction: column;
    }
    
    .search-box-form input {
        padding: 10px 15px;
    }
    
    .search-box-form button {
        padding: 10px;
    }
    
    .search-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .search-item-img {
        width: 100%;
        height: 180px;
    }
    
    .search-item-title {
        font-size: 16px;
    }
}