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

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

/* Header 样式 */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #4a90e2 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 93px;
    height: 50px;
    border-radius: 8px;
    background: white;
    padding: 5px;
}

.company-name .name-zh {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 2px;
}

.company-name .name-en {
    font-size: 0.8rem;
    opacity: 0.9;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    background: rgba(255,255,255,0.1);
    color: #7ed321;
    transform: translateY(-2px);
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.lang-btn:hover, .lang-btn.active {
    background: #7ed321;
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #4a90e2 100%);
    color: white;
    padding: 10rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent 0px,
            transparent 20px,
            rgba(255,255,255,0.08) 20px,
            rgba(255,255,255,0.08) 22px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent 0px,
            transparent 40px,
            rgba(255,255,255,0.04) 40px,
            rgba(255,255,255,0.04) 42px
        ),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 80px,
            rgba(255,255,255,0.06) 80px,
            rgba(255,255,255,0.06) 85px
        );
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(126, 211, 33, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease-out;
}

.hero .slogan {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .hero-desc {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-button {
    background: linear-gradient(45deg, #7ed321, #9ee547);
    color: white;
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(126, 211, 33, 0.3);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(126, 211, 33, 0.4);
    background: linear-gradient(45deg, #9ee547, #7ed321);
}

/* 产品展示区 */
.products-section {
    padding: 6rem 0;
    background: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.products-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            30deg,
            transparent 0px,
            transparent 60px,
            rgba(30, 60, 114, 0.02) 60px,
            rgba(30, 60, 114, 0.02) 62px
        ),
        repeating-linear-gradient(
            -30deg,
            transparent 0px,
            transparent 120px,
            rgba(74, 144, 226, 0.03) 120px,
            rgba(74, 144, 226, 0.03) 122px
        );
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    color: #1e3c72;
    margin-bottom: 4rem;
    font-weight: bold;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #7ed321, #4a90e2);
    border-radius: 2px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.product-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(30, 60, 114, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    border: 1px solid rgba(30, 60, 114, 0.05);
    cursor: pointer;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(126, 211, 33, 0.02) 0%, 
        rgba(74, 144, 226, 0.02) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.product-card:hover::before {
    opacity: 1;
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(30, 60, 114, 0.15);
    border-color: rgba(126, 211, 33, 0.2);
}

.product-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 60, 114, 0.8) 0%, 
        rgba(126, 211, 33, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2;
}

.product-overlay i {
    color: white;
    font-size: 2rem;
    transform: scale(0.5);
    transition: transform 0.3s ease;
}

.product-card:hover .product-image {
    transform: scale(1.1);
}

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

.product-card:hover .product-overlay i {
    transform: scale(1);
}

.product-content {
    padding: 1.5rem;
    position: relative;
    z-index: 2;
}

.product-category {
    display: inline-block;
    background: linear-gradient(45deg, #7ed321, #9ee547);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.product-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e3c72;
    margin-bottom: 0.8rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-desc {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.product-btn {
    background: linear-gradient(45deg, #1e3c72, #4a90e2);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(30, 60, 114, 0.2);
}

.product-btn:hover {
    background: linear-gradient(45deg, #4a90e2, #7ed321);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 60, 114, 0.3);
}

.product-btn i {
    font-size: 0.9rem;
}

/* 产品卡片点击提示 */
.product-click-hint {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 60, 114, 0.85) 0%, 
        rgba(126, 211, 33, 0.85) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 3;
    color: white;
    gap: 0.5rem;
}

.product-click-hint i {
    font-size: 2rem;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.product-click-hint span {
    font-size: 0.9rem;
    font-weight: 600;
    transform: translateY(10px);
    transition: transform 0.3s ease;
}

.product-card:hover .product-click-hint {
    opacity: 1;
}

.product-card:hover .product-click-hint i {
    transform: scale(1);
}

.product-card:hover .product-click-hint span {
    transform: translateY(0);
}

/* 产品详情弹窗 */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 2rem;
    backdrop-filter: blur(5px);
    animation: modalFadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 24px;
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(0, 0, 0, 0.1);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    color: #666;
}

.modal-close:hover {
    background: rgba(255, 0, 0, 0.1);
    color: #ff4757;
    transform: scale(1.1);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.modal-images {
    position: relative;
}

.image-gallery {
    position: sticky;
    top: 0;
}

.main-image {
    width: 100%;
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 1rem;
    background: #f8f9fa;
}

.gallery-main-img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* 改为 contain 以完整显示图片 */
    transition: transform 0.3s ease;
}

.image-thumbnails {
    width: 100%;
}

.thumbnail-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.thumbnail-nav {
    background: linear-gradient(45deg, #1e3c72, #4a90e2);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.thumbnail-nav:hover {
    background: linear-gradient(45deg, #4a90e2, #7ed321);
    transform: scale(1.1);
}

.thumbnails-container {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    flex: 1;
}

.thumbnail {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.thumbnail:hover {
    border-color: #4a90e2;
    transform: scale(1.05);
}

.thumbnail.active {
    border-color: #7ed321;
    box-shadow: 0 4px 12px rgba(126, 211, 33, 0.3);
}

.modal-info {
    padding-left: 1rem;
}

.product-category-modal {
    display: inline-block;
    background: linear-gradient(45deg, #7ed321, #9ee547);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1e3c72;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.modal-description {
    color: #666;
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.product-specs {
    margin-bottom: 2rem;
}

.product-specs h3 {
    color: #1e3c72;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.specs-list {
    display: grid;
    gap: 0.8rem;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #7ed321;
}

.spec-label {
    font-weight: 600;
    color: #1e3c72;
}

.spec-value {
    color: #666;
}

.modal-actions {
    display: flex;
    gap: 1rem;
}

.contact-btn {
    background: linear-gradient(45deg, #7ed321, #9ee547);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: 0 4px 15px rgba(126, 211, 33, 0.3);
}

.contact-btn:hover {
    background: linear-gradient(45deg, #9ee547, #7ed321);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(126, 211, 33, 0.4);
}

/* 原图预览弹窗 */
.image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(8px);
    animation: modalFadeIn 0.3s ease;
}

.preview-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.preview-close {
    position: absolute;
    top: -40px;
    right: -40px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    font-size: 1.2rem;
}

.preview-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .preview-close {
        top: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.5);
    }
}

/* 弹窗动画 */
@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 关于我们简介 */
.about-section {
    padding: 6rem 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    color: #1e3c72;
    margin-bottom: 2rem;
    position: relative;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, #7ed321, #4a90e2);
    border-radius: 2px;
}

.about-text p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.feature-item {
    background: linear-gradient(135deg, #1e3c72, #4a90e2);
    color: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: #7ed321;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.feature-item p {
    opacity: 0.9;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            -45deg,
            transparent 0px,
            transparent 30px,
            rgba(255,255,255,0.03) 30px,
            rgba(255,255,255,0.03) 32px
        ),
        repeating-linear-gradient(
            45deg,
            transparent 0px,
            transparent 60px,
            rgba(255,255,255,0.02) 60px,
            rgba(255,255,255,0.02) 62px
        );
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: #7ed321;
    font-size: 1.3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.contact-item:hover {
    color: #7ed321;
}

.contact-item i {
    width: 20px;
    color: #7ed321;
}

.contact-item a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.product-list li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    transition: color 0.3s ease;
}

.product-list li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #7ed321;
}

.product-list li:hover {
    color: #7ed321;
    cursor: pointer;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.8;
    position: relative;
    z-index: 2;
}

/* 加载动画 */
.loading-container {
    text-align: center;
    padding: 4rem 2rem;
    color: #1e3c72;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e3f2fd;
    border-top: 4px solid #1e3c72;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* 汉堡菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

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

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 导航包装器 */
.nav-wrapper {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

@media (max-width: 768px) {
    /* 显示汉堡菜单按钮 */
    .mobile-menu-btn {
        display: flex;
    }

    /* 头部布局调整 */
    .nav-container {
        justify-content: space-between;
        padding: 0.8rem 1.5rem;
    }

    .header {
        padding: 0;
    }

    /* 隐藏桌面端导航 */
    .nav-wrapper {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding: 80px 0 2rem;
        transition: right 0.3s ease;
        z-index: 1000;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    }

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

    .nav-menu {
        flex-direction: column;
        gap: 0;
        width: 100%;
        margin-bottom: 2rem;
    }

    .nav-menu a {
        display: block;
        padding: 1rem 2rem;
        border-radius: 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        text-align: left;
        font-size: 1.1rem;
    }

    .nav-menu a:hover {
        background: rgba(255,255,255,0.1);
        transform: none;
    }

    .language-switcher {
        flex-direction: column;
        gap: 0.8rem;
        padding: 0 2rem;
        width: 100%;
    }

    .lang-btn {
        width: 100%;
        padding: 0.8rem;
        border-radius: 8px;
        font-size: 1rem;
    }

    /* Logo区域调整 */
    .logo-section {
        gap: 0.8rem;
    }

    .logo-img {
        width: 74px;
        height: 40px;
    }

    .company-name .name-zh {
        font-size: 1.1rem;
    }

    .company-name .name-en {
        font-size: 0.7rem;
    }

    /* Hero区域调整 */
    .hero {
        padding: 6rem 0 4rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero .slogan {
        font-size: 1.1rem;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .product-card {
        border-radius: 20px;
    }
    
    .product-image-wrapper {
        height: 160px;
    }
    
    .product-content {
        padding: 1.2rem;
    }
    
    .product-title {
        font-size: 1.1rem;
    }
    
    .product-desc {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .product-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }
}

/* 移动端遮罩层 */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 0.8rem 1rem;
    }


    .company-name .name-zh {
        font-size: 1rem;
    }

    .company-name .name-en {
        font-size: 0.65rem;
    }

    .nav-wrapper {
        width: 260px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .cta-button {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

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

    .product-card {
        border-radius: 16px;
    }
    
    .product-image-wrapper {
        height: 140px;
    }
    
    .product-content {
        padding: 1rem;
    }
    
    .product-category {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
        margin-bottom: 0.8rem;
    }
    
    .product-title {
        font-size: 1rem;
        margin-bottom: 0.6rem;
    }
    
    .product-desc {
        font-size: 0.85rem;
        margin-bottom: 1rem;
        -webkit-line-clamp: 2;
        line-clamp: 2;
    }
    
    .product-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .product-btn span {
        display: none;
    }
    
    .product-btn i {
        font-size: 1rem;
    }
    
    /* 移动端弹窗样式 */
    .product-modal {
        padding: 1rem;
    }
    
    .modal-content {
        border-radius: 20px;
        max-height: 95vh;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .main-image {
        height: 250px;
    }
    
    .modal-info {
        padding-left: 0;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-description {
        font-size: 1rem;
    }
    
    .contact-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .product-click-hint span {
        font-size: 0.8rem;
    }
    
    .product-click-hint i {
        font-size: 1.5rem;
    }

    .feature-item {
        padding: 2rem 1.5rem;
    }
}

/* 懒加载图片样式 */
.lazy-image {
    transition: opacity 0.3s ease, filter 0.3s ease;
    opacity: 0.7;
    filter: blur(2px);
}

.lazy-image.loading {
    opacity: 0.5;
    filter: blur(4px);
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

.lazy-image.loaded {
    opacity: 1;
    filter: none;
}

.lazy-image.error {
    opacity: 0.6;
    filter: grayscale(100%);
    background: #f5f5f5;
}

/* 加载动画 */
@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* 产品图片懒加载特定样式 */
.product-image.lazy-image {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.product-image.lazy-image.loading {
    background: linear-gradient(90deg, #f8f9fa 25%, #e9ecef 50%, #f8f9fa 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

/* 弹窗图片懒加载样式 */
.gallery-main-img.lazy-image {
    background: #f8f9fa;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumbnail.lazy-image {
    background: #f0f0f0;
    min-height: 60px;
}

.thumbnail.lazy-image.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1s infinite;
}