/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary-color: #2563eb;
            --secondary-color: #1e40af;
            --accent-color: #3b82f6;
            --light-color: #f8fafc;
            --dark-color: #1e293b;
            --text-color: #334155;
            --border-color: #e2e8f0;
            --success-color: #10b981;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            color: var(--text-color);
            line-height: 1.6;
            background-color: #f1f5f9;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        ul {
            list-style: none;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        .section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--dark-color);
            margin-bottom: 15px;
        }
        
        .section-title p {
            color: #64748b;
            font-size: 1.1rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        
        .btn {
            display: inline-block;
            background: var(--primary-color);
            color: white;
            padding: 12px 28px;
            border-radius: 4px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--light-color);
            border: 2px solid var(--light-color);
        }
        
        .btn-secondary:hover {
            background: var(--primary-color);
            color: white;
        }
        
        /* 导航栏样式 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark-color);
        }
        
        .logo span {
            color: var(--primary-color);
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            font-weight: 600;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .nav-links a.active {
            color: var(--primary-color);
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark-color);
        }
        
        /* 英雄区域样式 */
        .hero {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            color: white;
            padding: 160px 0 100px;
            margin-top: 80px;
            text-align: center;
        }
        
        .hero-content h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero-content p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        
        /* 公司信息样式 */
        .about-content {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 50px;
            align-items: center;
        }
        
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark-color);
        }
        
        .about-text p {
            margin-bottom: 20px;
        }
        
        .about-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        
        .stat-item {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .stat-item .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
            line-height: 1;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 10px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        /* 产品中心样式 */
        .products-section {
            background-color: var(--light-color);
        }
        
        .products-filter {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }
        
        .filter-btn {
            padding: 8px 20px;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .filter-btn.active, .filter-btn:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
        }
        
        .product-img {
            height: 200px;
            background: linear-gradient(45deg, #93c5fd, #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        
        .product-info {
            padding: 25px;
        }
        
        .product-info h3 {
            margin-bottom: 10px;
            color: var(--dark-color);
        }
        
        /* 下载中心样式 */
     /* 下载中心样式 - 两列网格布局 */
.downloads-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.download-item {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.download-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.15);
    border-color: var(--primary-color);
}

.download-header {
    display: flex;
    align-items: flex-start;
    /* margin-bottom: 15px; */
}

.file-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: white;
    font-size: 1.5rem;
}

.download-title h4 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 5px;
    line-height: 1.3;
}

.download-title p {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.5;
}

.download-meta {
    display: flex;
    gap: 20px;
    margin-top: 10px;
    padding-top: 5px;
    border-top: 1px solid var(--border-color);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 0.9rem;
}

.meta-item i {
    color: var(--primary-color);
}

.download-actions {
    margin-top: auto;
    padding-top: 20px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-color);
    color: white;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
}

.download-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .downloads-list {
        gap: 20px;
    }
    
    .download-item {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .downloads-list {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .download-item {
        padding: 20px;
    }
}

@media (max-width: 576px) {
    .download-header {
        flex-direction: column;
    }
    
    .file-icon {
        margin-bottom: 15px;
    }
    
    .download-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
}
        
        /* 成功案例样式 */
        .cases-section {
            background-color: var(--light-color);
        }
        
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .case-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .case-img {
            height: 200px;
            background: linear-gradient(45deg, #7c3aed, #a78bfa);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
        }
        
        .case-info {
            padding: 25px;
        }
        
        .case-info h3 {
            margin-bottom: 10px;
            color: var(--dark-color);
        }
        
        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }
        
        .case-tag {
            background: #f1f5f9;
            color: #475569;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        
        /* 咨询中心样式 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: white;
            margin-bottom: 15px;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--dark-color);
        }
        
        .faq-question i {
            transition: transform 0.3s ease;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 20px 20px;
            max-height: 300px;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        /* 联系我们样式 */
        .contact-section {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            color: white;
        }
        
        .contact-section .section-title h2,
        .contact-section .section-title p {
            color: white;
        }
        
        .contact-content {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 50px;
        }
        
        .contact-info h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        
        .contact-details {
            margin-top: 30px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .contact-item i {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        
        .job-openings {
            margin-top: 40px;
        }
        
        .job-item {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 15px;
        }
        
        .job-item h4 {
            margin-bottom: 5px;
        }
        
        .job-item p {
            color: #cbd5e1;
            font-size: 0.9rem;
        }
        
        .contact-form input,
        .contact-form textarea {
            width: 100%;
            padding: 15px;
            margin-bottom: 20px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 5px;
            color: white;
            font-size: 1rem;
        }
        
        .contact-form input::placeholder,
        .contact-form textarea::placeholder {
            color: #cbd5e1;
        }
        
        /* 页脚样式 */
        footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 0px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a:hover {
            color: var(--accent-color);
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .about-content,
            .contact-content {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .hero-content h1 {
                font-size: 2.5rem;
            }
            
            .about-stats {
                grid-template-columns: 1fr;
            }
            
            .products-grid,
            .cases-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .hero {
                padding: 140px 0 80px;
            }
            
            .download-item {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .download-actions {
                margin-top: 15px;
            }
        }

        .case-img img{
            width: 370px;
            height: 200px;
        }
        /* 招贤纳士 - 两列布局样式 */
.recruitment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.recruitment-footer {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.recruitment-note {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: linear-gradient(to right, #f0f9ff, #f8fafc);
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.recruitment-note i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 3px;
}

.recruitment-note p {
    margin: 0;
    color: var(--text-color);
    line-height: 1.6;
}

.job-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.job-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(37, 99, 235, 0.15);
    border-color: var(--primary-color);
}

.job-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
}

.job-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(45deg);
}

.job-title-section h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.job-title-section h3 i {
    font-size: 1.1rem;
}

.job-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 5px;
}

.job-tag {
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.job-tag.tech {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.job-tag.exp {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.job-tag.location {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.salary-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 12px;
    border-radius: 8px;
    text-align: center;
    min-width: 70px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.salary-amount {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.salary-label {
    font-size: 0.7rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.job-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.job-section {
    margin-bottom: 20px;
}

.job-section h4 {
    color: var(--dark-color);
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f1f5f9;
}

.job-duties,
.job-requirements {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.job-duties li,
.job-requirements li {
    padding: 6px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

.job-duties li i {
    color: var(--success-color);
    font-size: 0.8rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.job-requirements li i {
    color: var(--primary-color);
    font-size: 0.8rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.benefits-section {
    margin-top: auto;
    margin-bottom: 20px;
}

.benefits-section h4 {
    color: var(--dark-color);
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f1f5f9;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f8fafc;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--dark-color);
    transition: all 0.2s ease;
}

.benefit-item:hover {
    background: #e2e8f0;
    transform: translateX(3px);
}

.benefit-item i {
    color: var(--primary-color);
    font-size: 0.9rem;
    width: 16px;
    text-align: center;
}

.job-footer {
    background: #f8fafc;
    margin: 0 -25px -25px -25px;
    padding: 20px 25px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.border-info p {
    margin: 0;
    color: var(--text-color);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.border-info p i {
    color: var(--primary-color);
}

.contact-info small {
    color: #64748b;
    font-size: 0.8rem;
    display: block;
    margin-top: 4px;
}

.apply-btn {
    background: linear-gradient(135deg, var(--success-color), #0da371);
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    white-space: nowrap;
}

.apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.3);
    color: white;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .recruitment-grid {
        gap: 25px;
    }
    
    .job-content {
        padding: 20px;
    }
    
    .job-footer {
        padding: 15px 20px;
        margin: 0 -20px -20px -20px;
    }
}

@media (max-width: 768px) {
    .recruitment-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .recruitment-note {
        flex-direction: column;
        text-align: center;
    }
    
    .job-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .salary-badge {
        align-self: flex-start;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .job-footer {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .contact-info p {
        justify-content: center;
    }
    
    .apply-btn {
        justify-content: center;
    }
    
    .job-tags {
        flex-direction: column;
        align-items: flex-start;
    }
}