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

/* 基础样式 */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: #6366F1;
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: #4F46E5;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-outline {
    background: transparent;
    color: #6366F1;
    border: 2px solid #6366F1;
}

.btn-outline:hover {
    background: #6366F1;
    color: white;
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(135deg, #2d1b6b 0%, #3730a3 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(45, 27, 107, 0.3);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo .logo-image {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.nav-logo .logo-image:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-menu a:hover {
    color: #FFB74D;
}

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

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 12px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.15), 0 5px 20px rgba(99, 102, 241, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px) scale(0.95);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    min-width: 220px;
    list-style: none;
    padding: 15px 0;
    margin-top: 15px;
    z-index: 1001;
    border: 1px solid rgba(99, 102, 241, 0.1);
    backdrop-filter: blur(10px);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-menu li {
    padding: 0;
    position: relative;
}

.dropdown-menu a {
    padding: 12px 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-radius: 8px;
    color: #475569 !important;
    font-size: 14px;
    font-weight: 500;
    margin: 0 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.dropdown-menu a i {
    color: #6366F1;
    font-size: 12px;
    width: 16px;
    text-align: center;
}

.dropdown-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

/* 取消二级菜单悬停效果
.dropdown-menu a:hover {
    background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    color: white !important;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.dropdown-menu a:hover::before {
    left: 100%;
}
*/

/* 移动端导航切换 */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

    .nav-toggle span {
        width: 25px;
        height: 3px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 2px;
        transition: all 0.3s ease;
    }

/* Hero区域 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(79, 70, 229, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    animation: techBackground 20s ease-in-out infinite;
}

@keyframes techBackground {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-background {
    display: none;
}

.hero-overlay {
    display: none;
}

.hero-content {
    width: 100%;
    color: white;
    z-index: 1;
}

.hero-content .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 500px;
    gap: 60px;
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.highlight {
    color: #FFB74D;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-features {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    font-size: 14px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-stats {
    display: flex;
    gap: 40px;
    animation: fadeInUp 1s ease 0.8s both;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: #FFB74D;
}

.stat-item p {
    font-size: 14px;
    opacity: 0.9;
}

/* 核心优势 */
.advantages {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #6366F1;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #6366F1;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: #6366F1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.advantage-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

/* 产品方案 */
.products {
    padding: 100px 0;
    background: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.product-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.product-card.featured {
    border: 2px solid #6366F1;
    transform: scale(1.05);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(99, 102, 241, 0.15);
}

.product-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.product-badge {
    position: absolute;
    top: -10px;
    right: 30px;
    background: #6366F1;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

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

.product-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: #6366F1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.product-subtitle {
    color: #666;
    font-size: 14px;
}

.product-features ul {
    list-style: none;
    margin-bottom: 30px;
}

.product-features li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-features i {
    color: #6366F1;
    font-size: 14px;
}

.product-highlight {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
}

.product-highlight h4 {
    margin-bottom: 15px;
    color: #333;
    font-size: 16px;
}

.highlight-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.highlight-tags span {
    background: #6366F1;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
}

/* 功能模块 */
.features {
    padding: 100px 0;
    background: #f8f9fa;
}

.features-tabs {
    margin-top: 60px;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background: white;
    border: 2px solid #e9ecef;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    color: #333;
}

.tab-btn.active,
.tab-btn:hover {
    background: #6366F1;
    border-color: #6366F1;
    color: white;
}

.tab-content {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.feature-text h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.feature-text ul {
    list-style: none;
}

.feature-text li {
    padding: 8px 0;
    position: relative;
    padding-left: 20px;
}

.feature-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #6366F1;
    font-weight: bold;
}

.feature-image {
    text-align: center;
}

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

/* 统计数据 */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.stat-card {
    text-align: center;
    padding: 20px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

/* 文章列表模块 */
.articles {
    padding: 100px 0;
    background: #f8f9fa;
}

.articles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.article-column {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.column-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #6366F1;
}

.column-title i {
    color: #6366F1;
    font-size: 1.3rem;
}

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

.article-item {
    padding: 20px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

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

.article-item:hover {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px 15px;
    margin: 0 -15px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.article-meta time {
    font-size: 14px;
    color: #666;
}

.article-tag {
    background: #6366F1;
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.article-tag.hot {
    background: #e74c3c;
}

.article-item h4 {
    margin-bottom: 8px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
}

.article-item h4 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-item h4 a:hover {
    color: #6366F1;
}

.article-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.article-more {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h3 {
    margin-bottom: 10px;
    color: #FFB74D;
}

.footer-contact {
    margin-top: 20px;
}

.footer-contact p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: #ecf0f1;
}

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

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

.footer-section ul a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #34495e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #6366F1;
    transform: translateY(-3px);
}

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

.footer-qr img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.footer-qr span {
    font-size: 12px;
    color: #bdc3c7;
}

.footer-qr-image {
    width: 200px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.footer-qr-image:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0,0,0,0.3);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright p {
    margin-bottom: 5px;
    color: #bdc3c7;
    font-size: 14px;
}

.footer-copyright a {
    color: #bdc3c7;
    text-decoration: none;
}

.footer-copyright a:hover {
    color: white;
}

.footer-keywords {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-keywords span {
    color: #bdc3c7;
    font-size: 14px;
}

.footer-keywords a {
    color: #6366F1;
    text-decoration: none;
    font-size: 14px;
}

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

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #6366F1;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.back-to-top:hover {
    background: #4F46E5;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* 悬浮联系按钮 */
.floating-contact {
    position: fixed;
    right: 30px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.float-btn.phone {
    background: #34A853;
}

.float-btn.wechat {
    background: #1DD47F;
}

.float-btn:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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



/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    /* 导航栏移动端优化 */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: auto;
        max-height: calc(100vh - 70px);
        background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding: 30px 0 40px 0;
        transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
        border-radius: 0 0 25px 25px;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
        transform: translateX(0);
    }

    .nav-menu li {
        margin: 0;
        padding: 0 30px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .nav-menu > li > a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 0;
        font-size: 16px;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.95);
        border-radius: 0;
        transition: all 0.3s ease;
        min-height: 50px;
    }

    .nav-menu > li > a:hover,
    .nav-menu > li > a:active {
        color: #FFB74D;
        background: rgba(255, 255, 255, 0.1);
        padding-left: 10px;
        transform: translateX(5px);
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
        background: #FFB74D;
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
        background: #FFB74D;
    }

    /* 移动端下拉菜单优化 */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        margin: 0;
        border-radius: 15px;
        margin-top: 10px;
        padding: 15px 0;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .dropdown-menu li {
        padding: 0 20px;
        border-bottom: none;
    }

    .dropdown-menu a {
        color: rgba(255, 255, 255, 0.9) !important;
        padding: 12px 0;
        margin: 0;
        border-radius: 0;
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 12px;
        transition: all 0.3s ease;
    }

    .dropdown-menu a:hover {
        color: #FFB74D !important;
        background: rgba(255, 255, 255, 0.1);
        padding-left: 10px;
        transform: translateX(5px);
    }

    .dropdown-menu a i {
        color: #FFB74D;
        font-size: 14px;
        width: 18px;
        text-align: center;
    }

    /* 移动端导航背景遮罩 */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(5px);
        z-index: 999;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

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

    /* Hero区域移动端 */
    .hero {
        min-height: 80vh;
        padding: 20px 0;
    }

    .hero-content .container {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
        order: 1;
    }

    .hero-image {
        order: 2;
        margin-top: 20px;
    }

    .hero-image img {
        max-width: 300px;
        border-radius: 10px;
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .hero-features {
        justify-content: center;
        flex-direction: column;
        gap: 10px;
    }

    .feature-tag {
        font-size: 13px;
        padding: 6px 12px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        margin-bottom: 40px;
    }

    .hero-stats {
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }

    .stat-item h3 {
        font-size: 1.8rem;
    }

    .stat-item p {
        font-size: 13px;
    }

    /* 网格布局移动端 */
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .product-card.featured {
        transform: none;
    }

    .product-card.featured:hover {
        transform: translateY(-10px);
    }

    .tab-buttons {
        gap: 10px;
    }

    .tab-btn {
        padding: 10px 16px;
        font-size: 14px;
    }

    .feature-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

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

    .contact-qr {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .article-column {
        padding: 30px 20px;
    }

    .column-title {
        font-size: 1.3rem;
    }

    .article-item h4 {
        font-size: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .floating-contact {
        right: 20px;
        bottom: 80px;
    }

    .back-to-top {
        right: 20px;
        bottom: 20px;
    }
}

/* 平板设备优化 */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-container {
        padding: 0 30px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .nav-menu a {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .advantage-card,
    .product-card {
        padding: 30px 20px;
    }

    .tab-content {
        padding: 20px;
    }

    .contact-form {
        padding: 20px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 15px;
    }

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

    /* 移动端导航进一步优化 */
    .nav-menu {
        padding: 20px 0 30px 0;
        border-radius: 0 0 20px 20px;
    }

    .nav-menu li {
        padding: 0 20px;
    }

    .nav-menu > li > a {
        padding: 15px 0;
        font-size: 15px;
        min-height: 45px;
    }

    .dropdown-menu {
        margin-top: 8px;
        border-radius: 12px;
        padding: 12px 0;
    }

    .dropdown-menu a {
        padding: 10px 0;
        font-size: 13px;
        gap: 10px;
    }

    .dropdown-menu a i {
        width: 16px;
        font-size: 13px;
    }

    /* 汉堡包菜单按钮优化 */
    .nav-toggle span {
        width: 22px;
        height: 2.5px;
    }
}

/* 图片弹窗模态框样式 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.image-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    animation: scaleIn 0.3s ease;
}

.modal-image {
    width: 100%;
    height: auto;
    max-width: 600px;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    object-fit: contain;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: -10px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

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

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* 移动端模态框优化 */
@media (max-width: 768px) {
    .modal-content {
        margin: 20px;
        max-width: calc(100vw - 40px);
        max-height: calc(100vh - 40px);
    }
    
    .modal-image {
        max-width: 100%;
        border-radius: 10px;
    }
    
    .modal-close {
        top: -30px;
        right: 5px;
        font-size: 30px;
        width: 35px;
        height: 35px;
    }
}