/* CSS变量 */
:root {
    --primary-color: #1a5fad;
    --primary-dark: #0d3d6e;
    --secondary-color: #e8a033;
    --text-dark: #333333;
    --text-light: #666666;
    --text-gray: #999999;
    --bg-light: #f5f7fa;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --container-width: 1600px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* 主内容区 */
.container {
    width: 1600px;
    max-width: 96%;
    margin: 0 auto;
}

/* ========================================
   轮播图区域
   ======================================== */
.banner-section {
    position: relative;
    width: 100%;
    height: 100vh;
    max-height: 900px;
    min-height: 600px;
    overflow: hidden;
    padding-top: 80px;
}

.banner-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

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

.banner-overlay {
    display: none;
}

/* 导航区域 */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: padding 0.3s ease;
    background: transparent;
}

.nav-container.scrolled {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding-top: 0;
    padding-bottom: 0;
}

.nav-container.scrolled .nav-wrapper {
    margin-top: 0;
}

.nav-wrapper {
    width: 1600px;
    max-width: 96%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--white);
    border-radius: 8px;
    padding: 0 30px;
    transition: border-radius 0.3s ease;
}

/* Logo */
.logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo h1 {
    font-size: 25px;
    font-weight: 700;
    color: #016de6;
    white-space: nowrap;
    line-height: 1.3;
}

.logo p {
    font-size: 12.5px;
    color: #333333;
    white-space: nowrap;
    line-height: 1.3;
}

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

.nav-list {
    display: flex;
    gap: 50px;
}

.nav-link {
    display: block;
    padding: 25px 0;
    font-size: 16px;
    color: #333333;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 15px;
    left: 0;
    width: 0;
    height: 1px;
    background: #016de6;
    transition: var(--transition);
}

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

.nav-link:hover,
.nav-link.active {
    color: #016de6;
}

/* 二级菜单 */
.has-submenu {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 160px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    padding: 10px 0;
    z-index: 100;
}

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

.submenu li a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: #333;
    transition: all 0.3s ease;
}

.submenu li a:hover {
    background: #f5f7fa;
    color: #016de6;
}

/* 导航搜索 */
.nav-search {
    margin-left: 30px;
}

.search-form {
    display: flex;
    align-items: center;
    border: 1px solid #016de6;
    border-radius: 20px;
    overflow: hidden;
}

.search-form input {
    width: 130px;
    height: 34px;
    padding: 0 15px;
    border: none;
    font-size: 14px;
    outline: none;
    background: transparent;
}

.search-form input::placeholder {
    color: #999;
}

.search-btn {
    width: 34px;
    height: 34px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn svg {
    width: 22px;
    height: 22px;
    fill: #016de6;
}

.search-btn:hover svg {
    fill: #015bb8;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* 轮播控制按钮 */
.banner-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.banner-dots {
    display: flex;
    gap: 10px;
}

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

.dot.active,
.dot:hover {
    background: var(--white);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* ========================================
   产品中心
   ======================================== */
.product-section {
    padding: 60px 0;
    background: #fff;
}

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

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 8px;
}

.section-title-cn {
    font-size: 32px;
    font-weight: 700;
    color: #016de6;
}

.section-divider {
    width: 1px;
    height: 30px;
    background: #016de6;
}

.section-title-en {
    font-size: 16px;
    color: #a0c4e8;
}

.section-desc {
    font-size: 14px;
    color: #333;
}

/* 产品分类 */
.product-categories {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.category-btn {
    padding: 12px 25px;
    background: #016de6;
    color: #fff;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
    flex: 1;
    margin: 0 5px;
}

.category-btn:first-child {
    margin-left: 0;
}

.category-btn:last-child {
    margin-right: 0;
}

.category-btn:hover {
    background: #c8e2fb;
    color: #333;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(1, 109, 230, 0.3);
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-card {
    display: block;
    background: #fff;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.product-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    background: #c8e2fb;
    transition: all 0.3s ease;
}

.product-card:hover .product-info {
    background: #016de6;
}

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

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

.product-arrow {
    width: 32px;
    height: 32px;
    border: 2px solid #016de6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.product-arrow svg {
    width: 18px;
    height: 18px;
    fill: #016de6;
    transition: all 0.3s ease;
}

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

.product-card:hover .product-arrow svg {
    fill: #fff;
}

/* ========================================
   公司简介
   ======================================== */
.about-section {
    position: relative;
    background: url('../img/jjbj.jpg') no-repeat center center;
    background-size: cover;
}

.about-bg {
    width: 100%;
    background: url('../img/jjr.jpg') no-repeat right bottom;
    background-size: auto;
}

.about-bga {
    width: 100%;
    background: url('../img/jjb.jpg') no-repeat center bottom;
    background-size: auto;
}

.about-top {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
    padding-top: 80px;
}

.about-intro {
    flex: 1;
    padding: 40px;
}

.about-intro h2,
.about-intro .intro-slogan {
    font-size: 24px;
    line-height: 1.4;
    margin: 0 0 5px 0;
    color: #016de6;
}

.about-intro h2 {
    font-weight: 700;
}

.intro-slogan {
    margin-bottom: 25px;
}

.intro-desc {
    font-size: 16px;
    color: #333;
    line-height: 1.8;
    margin: 40px 0;
}

.about-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #016de6;
    color: #fff;
    border-radius: 25px;
    font-size: 14px;
}

.about-video {
    flex: 1;
}

.about-video video {
    width: 100%;
    height: 100%;
    background: #000;
}

.about-bottom {
    display: flex;
    justify-content: space-around;
    height: 170px;
    align-items: center;
    width: 100%;
}

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

.stat-icon {
    width: 70px;
    height: 70px;
    display: inline-block;
    vertical-align: middle;
    margin-right: 15px;
}

.stat-info {
    display: inline;
    line-height: 1.2;
}

.stat-num {
    display: inline;
    font-size: 48px;
    font-weight: 700;
    color: #016de6;
}

.stat-unit {
    font-size: 20px;
    font-weight: 700;
    color: #016de6;
}

.stat-label {
    display: block;
    font-size: 16px;
    color: #333;
}

/* ========================================
   响应式设计 - 平板
   ======================================== */
@media (max-width: 1200px) {
    .container {
        width: 96%;
    }
    
    .nav-search {
        display: none;
    }
    
    .nav-list {
        gap: 30px;
    }
    
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   响应式设计 - 大手机/平板
   ======================================== */
@media (max-width: 992px) {
    .banner-section {
        height: 400px;
        min-height: 400px;
        padding-top: 0;
    }
    
    .nav-wrapper {
        padding: 10px;
    }
    
    .nav-container {
        padding-top: 0;
    }
    
    .logo p {
        display: none;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 80px;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }
    
    .nav-link {
        padding: 18px 30px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* 公司简介 */
    .about-bg {
        background: url('') no-repeat right bottom;
    }
    
    .about-top {
        flex-direction: column;
        padding-top: 5px;
        margin-bottom: 0;
    }
    
    .about-intro {
        padding-left: 0;
        padding-right: 0;
    }
    
    .about-video {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
    
    .about-bottom-wrapper {
        justify-content: stretch;
    }
    
    .about-bottom {
        max-width: 100%;
        height: auto;
        padding: 40px 0;
        flex-wrap: wrap;
        gap: 30px;
    }
}

/* ========================================
   响应式设计 - 平板
   ======================================== */
@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-categories {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .category-btn {
        padding: 12px 5px;
        font-size: 12px;
        margin: 0;
        flex: none;
    }
    
    .category-btn:first-child {
        display: none;
    }
}

/* ========================================
   响应式设计 - 小手机
   ======================================== */
@media (max-width: 480px) {
    .banner-section {
        height: 250px;
        min-height: 250px;
        padding-top: 0;
    }
    
    .nav-wrapper {
        padding: 10px;
    }
    
    .logo h1 {
        font-size: 18px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .section-title-cn {
        font-size: 24px;
    }
    
    .section-title-en {
        font-size: 12px;
    }
    
    /* 数字统计 */
    .stat-num {
        font-size: 28px !important;
    }
    
    .stat-unit {
        font-size: 14px !important;
    }
    
    .stat-label {
        font-size: 11px;
    }
}

/* ========================================
   特殊尺寸
   ======================================== */
@media (min-width: 1600px) {
    .nav-container:not(.scrolled) .nav-wrapper {
        margin-top: 20px;
    }
    
    .about-bottom {
        max-width: calc(1600px + (100vw - 1600px) / 2 - 624px);
    }
}

@media (max-width: 768px) {
    .about-bottom .stat-icon {
        display: none;
    }
}

@media (max-width: 1599px) and (min-width: 993px) {
    .about-bottom {
        max-width: calc(96vw - 624px);
    }
}

/* ========================================
   荣誉资质
   ======================================== */
.honor-section {
    padding: 60px 0;
    background: #f5f7fa;
    overflow: visible;
}

.honor-grid {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    flex-wrap: nowrap;
}

.honor-item {
    display: block;
    margin-right: -30px;
    text-decoration: none;
}

.honor-item:last-child {
    margin-right: 0;
}

.honor-item img {
    width: auto;
    height: auto;
    transition: transform 0.3s ease;
}

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

.honor-center {
    width: 40%;
    height: auto;
    z-index: 7;
    display: inline-block;
    margin-right: -30px;
}

.honor-center img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.honor-level-1 {
    width: 28.5%;
    z-index: 6.5;
}

.honor-level-1 img {
    height: 95%;
}

.honor-level-2 {
    width: 27%;
    z-index: 6;
}

.honor-level-2 img {
    height: 90%;
}

.honor-level-3 {
    width: 24.3%;
    z-index: 5;
}

.honor-level-3 img {
    height: 81%;
}

/* ========================================
   生产设备
   ======================================== */
.equipment-section {
    position: relative;
    padding: 60px 0;
    background: #fff;
}

.equipment-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/sbbj.jpg') no-repeat center center;
    background-size: cover;
    z-index: 0;
}

.equipment-section .container {
    position: relative;
    z-index: 1;
}

.equipment-scroll {
    overflow: hidden;
}

.equipment-track {
    display: flex;
    gap: 30px;
    animation: scroll 20s linear infinite;
}

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

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

.equipment-item {
    flex-shrink: 0;
    width: calc(25% - 15px);
    min-width: 250px;
    display: block;
    text-decoration: none;
}

.equipment-item img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.equipment-name {
    display: block;
    text-align: center;
    padding: 15px 0;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    transition: color 0.3s ease;
}

.equipment-item:hover .equipment-name {
    color: #016de6;
}

@media (max-width: 768px) {
    .equipment-item {
        width: calc(33.333% - 13px);
    }
}

@media (max-width: 480px) {
    .equipment-item {
        width: calc(50% - 10px);
        min-width: 150px;
    }
}

.honor-grid {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    flex-wrap: nowrap;
}

.honor-item {
    display: block;
    margin-right: -30px;
    text-decoration: none;
}

.honor-item:last-child {
    margin-right: 0;
}

.honor-item img {
    width: auto;
    height: auto;
    transition: transform 0.3s ease;
}

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

.honor-center img {
    height: 400px;
    width: auto;
    object-fit: contain;
}

.honor-center {
    width: 40%;
    height: auto;
    z-index: 7;
    display: inline-block;
    margin-right: -30px;
}

.honor-center img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.honor-level-1 {
    width: 28.5%;
    z-index: 6.5;
}

.honor-level-1 img {
    height: 95%;
}

.honor-level-2 {
    width: 27%;
    z-index: 6;
}

.honor-level-2 img {
    height: 90%;
}

.honor-level-3 {
    width: 24.3%;
    z-index: 5;
}

.honor-level-3 img {
    height: 81%;
}

.honor-level-3 img {
    height: 81%;
}

.honor-row2 {
    display: none;
}

@media (max-width: 992px) {
    .honor-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }
    
    .honor-center {
        grid-column: span 2;
        grid-row: span 2;
    }
    
    .honor-row2 {
        display: none;
    }
}

@media (max-width: 480px) {
    .honor-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        justify-content: center;
    }
    
    .honor-item {
        margin-right: 0;
    }
    
    .honor-level-3,
    .honor-level-2 {
        display: none;
    }
    
    .honor-center {
        width: 100%;
        grid-column: span 1;
    }
    
    .honor-center img {
        height: auto;
        width: 100%;
    }
    
    .honor-level-1,
    .honor-level-2 {
        width: 100%;
    }
    
    .honor-level-1 img,
    .honor-level-2 img {
        height: auto;
        width: 100%;
    }
}

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

.news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 20px 15px;
    border-bottom: 1px solid #eee;
    text-decoration: none;
    transition: all 0.3s ease;
}

.news-item:hover {
    background: #ecf6ff;
    transform: translateX(10px);
}

.news-date {
    width: 100px;
    flex-shrink: 0;
    text-align: left;
    margin-right: 25px;
}

.date-month {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #016de6;
    line-height: 1.2;
}

.date-year {
    display: block;
    font-size: 16px;
    color: #666;
    margin-top: 8px;
}

.news-image {
    width: 200px;
    height: 140px;
    flex-shrink: 0;
    margin-right: 20px;
    overflow: hidden;
}

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

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

.news-content {
    flex: 1;
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.news-item:hover .news-title {
    color: #016de6;
}

.news-meta {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.news-icon {
    width: 18px;
    height: 18px;
    margin-right: 5px;
    display: flex;
    align-items: center;
}

.news-icon svg {
    width: 100%;
    height: 100%;
}

.news-date-text {
    font-size: 14px;
    color: #999;
}

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

.news-more {
    width: 100px;
    flex-shrink: 0;
    text-align: center;
    margin-left: 20px;
}

.news-more::before {
    content: 'MORE +';
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid #016de6;
    border-radius: 20px;
    font-size: 14px;
    color: #016de6;
    transition: all 0.3s ease;
}

.news-item:hover .news-more::before {
    background: #016de6;
    color: #fff;
}

@media (max-width: 768px) {
    .news-item {
        flex-wrap: wrap;
        transition: none;
    }
    
    .news-item:hover {
        transform: none;
    }
    
    .news-date {
        display: none;
    }
    
    .news-image {
        width: 100%;
        height: 180px;
        margin-bottom: 15px;
    }
    
    .news-content {
        width: 100%;
    }
    
    .news-more {
        width: 100%;
        margin-left: 0;
        margin-top: 15px;
    }
}
.application-section {
    position: relative;
    padding: 60px 0;
    background: #f5f7fa;
}

.application-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/yybj.jpg') no-repeat center bottom;
    background-size: cover;
    z-index: 0;
}

.application-section .container {
    position: relative;
    z-index: 1;
}

.application-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.application-item {
    position: relative;
    width: calc(20% - 16px);
    overflow: hidden;
    display: block;
    text-decoration: none;
}

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

.application-item:hover {
    transform: translateY(-10px);
    transition: transform 0.3s ease;
}

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

.app-offset {
    margin-top: 40px;
}

.app-offset-bottom {
    margin-bottom: 40px;
}

.application-item:nth-child(1),
.application-item:nth-child(3),
.application-item:nth-child(5) {
    margin-bottom: 40px;
}

.application-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 25%;
    background: linear-gradient(to bottom, rgba(1, 109, 230, 0) 0%, rgba(1, 109, 230, 1) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.app-name-cn {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 5px;
}

.app-name-en {
    font-size: 15px;
    font-weight: 500;
    color: #fff;
}

@media (max-width: 768px) {
    .application-grid {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1px;
    }
    
    .application-item {
        margin-top: 0;
        margin-bottom: 0;
        width: calc(33.333% - 1px);
    }
    
    .application-item:nth-child(4),
    .application-item:nth-child(5) {
        width: calc(50% - 0.5px);
        margin-left: auto;
        margin-right: auto;
    }
    
    .app-offset {
        margin-top: 0;
    }
    
    .application-item:nth-child(1),
    .application-item:nth-child(3),
    .application-item:nth-child(5) {
        margin-bottom: 0;
    }
    
    .app-name-cn {
        font-size: 15px;
    }
    
    .app-name-en {
        font-size: 9px;
    }
}

/* ========================================
   页脚
   ======================================== */
.footer-section {
    position: relative;
    padding: 60px 0 30px;
    background: #333;
    color: #fff;
}

.footer-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/fo.jpg') no-repeat center center;
    background-size: cover;
    z-index: 0;
}

.footer-section .container {
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-left {
    width: 30%;
}

.footer-logo {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.footer-info {
    font-size: 14px;
    color: #fff;
    line-height: 2;
}

.footer-center {
    width: 20%;
    text-align: center;
}

.footer-qrcodes {
    display: flex;
    justify-content: center;
    gap: 20px;
}

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

.qrcode {
    width: 100px;
    height: 100px;
    margin: 0 auto 8px;
    background: #fff;
    padding: 5px;
}

.qrcode img {
    width: 100%;
    height: 100%;
}

.qrcode-text {
    font-size: 13px;
    color: #fff;
}

.footer-right {
    width: 40%;
    display: flex;
    justify-content: space-around;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 15px;
}

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

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

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

.footer-column a:hover {
    color: #016de6;
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
}

.footer-bottom .copyright,
.footer-bottom .footer-links {
    display: inline;
    font-size: 13px;
    color: #fff;
    margin-right: 20px;
}

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

.footer-links a:hover {
    color: #016de6;
}

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

.footer-links a:hover {
    color: #016de6;
}

@media (max-width: 992px) {
    .footer-content {
        flex-wrap: wrap;
    }
    
    .footer-left,
    .footer-center,
    .footer-right {
        width: 100%;
        margin-bottom: 30px;
    }
    
    .footer-center {
        order: -1;
    }
    
    .footer-center {
        width: 100%;
        margin-bottom: 20px;
    }
    
    .footer-qrcodes {
        flex-direction: row;
        gap: 30px;
    }
    
    .qrcode {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 768px) {
    .footer-center,
    .footer-right {
        display: none;
    }
    
    .footer-right {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   右侧浮动按钮
   ======================================== */
.float-btns {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.float-btn {
    width: 50px;
    height: 50px;
    background: #016de6;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: transform 0.3s ease;
    border-radius: 5px;
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-btn img {
    width: 30px;
    height: 30px;
}

.float-tip {
    position: absolute;
    right: 60px;
    background: #016de6;
    color: #fff;
    padding: 8px 15px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.float-btn:hover .float-tip {
    opacity: 1;
    visibility: visible;
}

.float-qrcode {
    padding: 10px;
    right: 60px;
}

.float-qrcode img {
    width: 100px;
    height: 100px;
}

/* ========================================
   单页样式
   ======================================== */
.page-banner {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

.page-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
}

.page-content {
    padding: 60px 0;
    background: #f8f9fa;
}

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

.page-sidebar {
    width: 280px;
    flex-shrink: 0;
}

.sidebar-header {
    background: linear-gradient(135deg, #016de6 0%, #0d3d6e 100%);
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 10px;
}

.sidebar-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 5px;
}

.sidebar-subtitle {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 2px;
}

.sidebar-nav {
    list-style: none;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.sidebar-nav li {
    border-bottom: 1px solid #f0f0f0;
}

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

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

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: #016de6;
    color: #fff;
}

.sidebar-nav a .arrow {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(-45deg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-nav a:hover .arrow,
.sidebar-nav a.active .arrow {
    opacity: 1;
}

.page-main {
    flex: 1;
    background: #fff;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.page-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #016de6;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.page-breadcrumb {
    font-size: 14px;
    color: #999;
}

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

.page-breadcrumb a:hover {
    color: #016de6;
}

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

.page-text {
    margin-bottom: 40px;
}

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

.page-highlight {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4ff 100%);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 40px;
}

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

.highlight-icon {
    width: 60px;
    height: 60px;
}

.highlight-icon img {
    width: 100%;
    height: 100%;
}

.highlight-info {
    display: flex;
    flex-direction: column;
}

.highlight-num {
    font-size: 32px;
    font-weight: 700;
    color: #016de6;
}

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

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

.page-images {
    display: flex;
    gap: 20px;
}

.page-img-item {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
}

.page-img-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.img-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: #fff;
    font-size: 14px;
    text-align: center;
}

@media (max-width: 992px) {
    .page-layout {
        flex-direction: column;
    }
    
    .page-sidebar {
        width: 100%;
    }
    
    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        border-radius: 10px;
    }
    
    .sidebar-nav li {
        border-bottom: none;
    }
    
    .sidebar-nav a {
        padding: 12px 20px;
    }
    
    .page-main {
        padding: 25px;
    }
    
    .page-highlight {
        flex-direction: column;
        gap: 20px;
    }
    
    .highlight-item {
        justify-content: center;
    }
    
    .page-images {
        flex-direction: column;
    }
}

/* ========================================
   联系我们样式
   ======================================== */
.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: #ecf6ff;
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: #016de6;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: #333;
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 14px;
    color: #666;
}

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

/* ========================================
   产品列表样式
   ======================================== */
.product-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.product-list-item {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    text-decoration: none;
}

.product-list-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.product-list-img {
    width: 100%;
    overflow: hidden;
}

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

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

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

.product-list-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

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

@media (max-width: 576px) {
    .product-list-grid {
        grid-template-columns: 1fr;
    }
}

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

.pagination a {
    display: inline-block;
    min-width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #666;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background: #016de6;
    border-color: #016de6;
    color: #fff;
}

.pagination a.active {
    background: #016de6;
    border-color: #016de6;
    color: #fff;
}

/* ========================================
   产品详情样式
   ======================================== */
.product-detail {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.product-detail-images {
    width: 50%;
    flex-shrink: 0;
}

.product-detail-main {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
}

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

.product-detail-info {
    flex: 1;
}

.product-detail-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.product-detail-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-detail-specs,
.product-detail-apply {
    margin-bottom: 20px;
}

.product-detail-specs h4,
.product-detail-apply h4 {
    font-size: 16px;
    font-weight: 700;
    color: #016de6;
    margin-bottom: 10px;
}

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

.product-detail-specs li {
    font-size: 14px;
    color: #666;
    padding: 5px 0;
}

.product-detail-specs li span {
    font-weight: 600;
    color: #333;
}

.product-detail-apply p {
    font-size: 14px;
    color: #666;
}

.product-detail-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #016de6;
    color: #fff;
    border-radius: 25px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.product-detail-btn:hover {
    background: #015bb8;
    transform: translateY(-3px);
}

.product-detail-content {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
}

.product-detail-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.product-detail-text {
    color: #666;
    line-height: 1.8;
}

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

.product-detail-text ul {
    list-style: disc;
    padding-left: 20px;
}

.product-detail-text li {
    margin-bottom: 10px;
}

@media (max-width: 992px) {
    .product-detail {
        flex-direction: column;
    }
    
    .product-detail-images {
        width: 100%;
    }
}

/* ========================================
   文章列表样式
   ======================================== */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.article-item {
    display: flex;
    padding: 25px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.05);
    text-decoration: none;
    transition: all 0.3s ease;
}

.article-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 25px rgba(0,0,0,0.1);
}

.article-date {
    width: 120px;
    flex-shrink: 0;
    text-align: center;
    margin-right: 25px;
    padding-right: 25px;
    border-right: 1px solid #eee;
}

.article-date .date-month {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #016de6;
    line-height: 1.2;
}

.article-date .date-year {
    display: block;
    font-size: 14px;
    color: #999;
    margin-top: 5px;
}

.article-content {
    flex: 1;
}

.article-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.article-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 10px;
}

.article-more {
    font-size: 14px;
    color: #016de6;
}

@media (max-width: 768px) {
    .article-item {
        flex-direction: column;
    }
    
    .article-date {
        width: auto;
        display: flex;
        align-items: baseline;
        gap: 10px;
        margin-right: 0;
        padding-right: 0;
        border-right: none;
        margin-bottom: 15px;
    }
}

/* ========================================
   文章详情样式
   ======================================== */
.article-detail {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
}

.article-info {
    display: flex;
    gap: 30px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
    color: #999;
}

.article-body {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

.article-body p {
    margin-bottom: 20px;
}

.article-prev-next {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 14px;
}

.article-prev-next a {
    color: #666;
    text-decoration: none;
}

.article-prev-next a:hover {
    color: #016de6;
}

@media (max-width: 768px) {
    .article-info {
        flex-direction: column;
        gap: 10px;
    }
    
    .article-prev-next {
        flex-direction: column;
        gap: 15px;
    }
}

/* ========================================
   搜索结果页面样式
   ======================================== */
.search-tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.search-tabs a {
    font-size: 15px;
    color: #666;
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.search-tabs a:hover,
.search-tabs a.active {
    background: #016de6;
    color: #fff;
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.search-section-title {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    padding-left: 15px;
    border-left: 4px solid #016de6;
}

.article-category {
    width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-name {
    font-size: 14px;
    font-weight: 600;
    color: #016de6;
    background: #ecf6ff;
    padding: 5px 12px;
    border-radius: 15px;
    white-space: nowrap;
}