/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 20, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(66, 153, 225, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    color: #4299e1;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #4299e1;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a14 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
}

.hero-content {
    text-align: center;
    z-index: 2;
    color: #fff;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-text {
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.8s forwards;
    color: #cbd5e0;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 1s ease 1.1s forwards;
    color: #a0aec0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 1s ease 1.4s forwards;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(90deg, #4299e1, #805ad5);
    color: #fff;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #4299e1;
    border: 2px solid #4299e1;
}

.btn-secondary:hover {
    background: #4299e1;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.3);
}

/* 英雄区域动画 */
.hero-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%234299e1" opacity="0.3"/></svg>');
    animation: particleFloat 20s ease-in-out infinite;
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(66, 153, 225, 0.1), rgba(128, 90, 213, 0.1));
    animation: float 15s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation-delay: -5s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 10%;
    left: 20%;
    animation-delay: -10s;
}

/* 核心业务 */
.services {
    padding: 100px 0;
    background: #fff;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1a202c;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a202c;
}

.service-description {
    color: #718096;
    margin-bottom: 25px;
    line-height: 1.7;
}

.service-link {
    color: #4299e1;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.service-link:hover {
    color: #805ad5;
    transform: translateX(5px);
}

.service-link::after {
    content: ' →';
    margin-left: 5px;
    transition: all 0.3s ease;
}

.service-card:hover .service-link::after {
    margin-left: 10px;
}

/* 解决方案 */
.solutions {
    padding: 100px 0;
    background: #f7fafc;
}

.solutions-content {
    margin-top: 60px;
}

.solution-item {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 1s ease forwards;
}

.solution-item:nth-child(1) {
    animation-delay: 0.2s;
}

.solution-item:nth-child(2) {
    animation-delay: 0.4s;
}

.solution-item:nth-child(3) {
    animation-delay: 0.6s;
}

.solution-item.reverse {
    flex-direction: row-reverse;
}

.solution-image {
    flex: 1;
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(66, 153, 225, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.image-placeholder::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 ease;
}

.solution-item:hover .image-placeholder::before {
    left: 100%;
}

.solution-text {
    flex: 1;
}

.solution-text h4 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a202c;
}

.solution-text p {
    font-size: 1.1rem;
    color: #718096;
    line-height: 1.8;
}

/* 优势 */
.advantages {
    padding: 100px 0;
    background: #fff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background: #f7fafc;
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    background: #fff;
}

.advantage-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.advantage-item p {
    color: #718096;
    line-height: 1.6;
}

/* 联系我们区域 */
.contact-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a14 0%, #1a1a2e 50%, #16213e 100%);
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="1" fill="%234299e1" opacity="0.2"/></svg>');
}

.contact-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.contact-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-content p {
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: #a0aec0;
}

/* 页脚 */
.footer {
    background: #0a0a14;
    color: #a0aec0;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #4299e1;
}

.footer-info p {
    margin-bottom: 10px;
    line-height: 1.7;
}

.footer-links h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

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

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: #a0aec0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: #4299e1;
    padding-left: 8px;
}

.footer-contact h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-contact p {
    margin-bottom: 12px;
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #718096;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0) rotate(0deg);
    }
    33% {
        transform: translateY(-30px) translateX(20px) rotate(120deg);
    }
    66% {
        transform: translateY(-15px) translateX(-20px) rotate(240deg);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .solution-item {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .solution-item.reverse {
        flex-direction: column;
    }
    
    .image-placeholder {
        height: 250px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 10, 20, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 20px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content h3 {
        font-size: 2rem;
    }
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #0a0a14 0%, #1a1a2e 50%, #16213e 100%);
    padding: 120px 0 60px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><circle cx="10" cy="10" r="1" fill="%234299e1" opacity="0.2"/></svg>');
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.2rem;
    color: #a0aec0;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* 产品分类 */
.product-categories {
    padding: 100px 0;
    background: #fff;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.category-card {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    background: #fff;
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    transition: all 0.3s ease;
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
}

.category-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.category-card p {
    color: #718096;
    line-height: 1.6;
}

/* 产品展示 */
.product-showcase {
    padding: 100px 0;
    background: #f7fafc;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.product-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

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

.product-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.product-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    transition: all 0.3s ease;
}

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

.product-info {
    padding: 30px;
}

.product-info h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a202c;
}

.product-info p {
    color: #718096;
    margin-bottom: 25px;
    line-height: 1.7;
}

/* 服务优势 */
.service-advantages {
    padding: 100px 0;
    background: #fff;
}

.advantages-content {
    text-align: center;
}

.advantages-text h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1a202c;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.advantages-text p {
    font-size: 1.1rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto 50px;
}

/* 解决方案 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.solution-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.solution-card:hover::before {
    transform: scaleX(1);
}

.solution-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a202c;
}

.solution-card p {
    color: #718096;
    margin-bottom: 25px;
    line-height: 1.7;
}

.solution-card ul {
    list-style: none;
    padding: 0;
}

.solution-card ul li {
    padding: 8px 0;
    color: #718096;
    position: relative;
    padding-left: 25px;
    line-height: 1.6;
}

.solution-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4299e1;
    font-weight: 600;
}

/* 图标样式 */
.icon-office::before {
    content: '📋';
}

.icon-ip::before {
    content: '🔒';
}

.icon-project::before {
    content: '📊';
}

.icon-experience::before {
    content: '⭐';
}

.icon-professional::before {
    content: '👨💼';
}

.icon-efficiency::before {
    content: '⚡';
}

.icon-reliability::before {
    content: '🛡️';
}

.icon-stationery::before {
    content: '📝';
}

.icon-electronics::before {
    content: '💻';
}

.icon-furniture::before {
    content: '🪑';
}

.icon-consumables::before {
    content: '🖨️';
}

.icon-cleaning::before {
    content: '🧹';
}

.icon-breakroom::before {
    content: '☕';
}

.icon-quality::before {
    content: '🏆';
}

.icon-price::before {
    content: '💰';
}

.icon-delivery::before {
    content: '🚚';
}

.icon-service::before {
    content: '🤝';
}

/* 知识产权服务 */
.ip-services {
    padding: 100px 0;
    background: #fff;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.service-card ul li {
    padding: 8px 0;
    color: #718096;
    position: relative;
    padding-left: 25px;
    line-height: 1.6;
}

.service-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4299e1;
    font-weight: 600;
}

/* 服务流程 */
.service-process {
    padding: 100px 0;
    background: #f7fafc;
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 50px;
}

.process-step {
    flex: 1;
    min-width: 200px;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1) rotate(5deg);
}

.step-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.step-content p {
    color: #718096;
    line-height: 1.6;
}

.process-arrow {
    font-size: 2rem;
    color: #4299e1;
    font-weight: 600;
    margin: 0 10px;
    opacity: 0.6;
}

/* 知识产权优势 */
.ip-advantages {
    padding: 100px 0;
    background: #fff;
}

/* 成功案例 */
.success-cases {
    padding: 100px 0;
    background: #f7fafc;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.case-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.case-card:hover::before {
    transform: scaleX(1);
}

.case-content h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a202c;
}

.case-content p {
    color: #718096;
    line-height: 1.7;
}

/* 知识产权图标 */
.icon-patent::before {
    content: '📋';
}

.icon-trademark::before {
    content: '™️';
}

.icon-copyright::before {
    content: '©️';
}

.icon-trade-secret::before {
    content: '🔒';
}

.icon-ip-strategy::before {
    content: '📊';
}

.icon-ip-dispute::before {
    content: '⚖️';
}

.icon-expert-team::before {
    content: '👥';
}

.icon-rich-experience::before {
    content: '⭐';
}

.icon-high-success::before {
    content: '🏆';
}

.icon-efficient-service::before {
    content: '⚡';
}

.icon-comprehensive-service::before {
    content: '📦';
}

.icon-reasonable-price::before {
    content: '💰';
}

/* 项目类型 */
.project-types {
    padding: 100px 0;
    background: #fff;
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.type-card {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.type-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    background: #fff;
}

.type-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    transition: all 0.3s ease;
}

.type-card:hover .type-icon {
    transform: scale(1.1) rotate(5deg);
}

.type-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.type-card p {
    color: #718096;
    line-height: 1.6;
}

/* 申报流程 */
.application-process {
    padding: 100px 0;
    background: #f7fafc;
}

/* 服务内容 */
.application-services {
    padding: 100px 0;
    background: #fff;
}

/* 申报优势 */
.application-advantages {
    padding: 100px 0;
    background: #f7fafc;
}

/* 项目申报图标 */
.icon-tech-project::before {
    content: '🔬';
}

.icon-industry-project::before {
    content: '🏭';
}

.icon-fund-project::before {
    content: '💰';
}

.icon-innovation-project::before {
    content: '🚀';
}

.icon-green-project::before {
    content: '🌱';
}

.icon-export-project::before {
    content: '🌍';
}

.icon-consultation::before {
    content: '💬';
}

.icon-analysis::before {
    content: '📊';
}

.icon-material::before {
    content: '📝';
}

.icon-submission::before {
    content: '📤';
}

.icon-tracking::before {
    content: '🔍';
}

.icon-implementation::before {
    content: '⚙️';
}

.icon-policy-expert::before {
    content: '📚';
}

.icon-professional-team::before {
    content: '👥';
}

.icon-personalized::before {
    content: '🎯';
}

.icon-full-process::before {
    content: '🔄';
}

.icon-success-rate::before {
    content: '🏆';
}

/* 公司简介 */
.company-profile {
    padding: 100px 0;
    background: #fff;
}

.profile-content {
    display: flex;
    gap: 60px;
    align-items: center;
    flex-wrap: wrap;
}

.profile-text {
    flex: 1;
    min-width: 300px;
}

.profile-text h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a202c;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-text p {
    color: #718096;
    margin-bottom: 20px;
    line-height: 1.8;
}

.profile-image {
    flex: 1;
    min-width: 300px;
    height: 400px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.profile-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    transition: all 0.3s ease;
}

.profile-image:hover .image-placeholder {
    transform: scale(1.1);
}

/* 发展历程 */
.development-history {
    padding: 100px 0;
    background: #f7fafc;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, #4299e1, #805ad5);
    border-radius: 2px;
}

.timeline-item {
    display: flex;
    margin-bottom: 50px;
    position: relative;
    width: 100%;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    z-index: 2;
    box-shadow: 0 5px 15px rgba(66, 153, 225, 0.3);
}

.timeline-content {
    flex: 1;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: calc(50% + 40px);
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: calc(50% + 40px);
    text-align: left;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.timeline-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.timeline-content p {
    color: #718096;
    line-height: 1.6;
}

/* 团队介绍 */
.team-intro {
    padding: 100px 0;
    background: #fff;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.team-member {
    background: #f7fafc;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    text-align: center;
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.member-image {
    height: 250px;
    overflow: hidden;
}

.member-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    transition: all 0.3s ease;
}

.team-member:hover .image-placeholder {
    transform: scale(1.1);
}

.member-info {
    padding: 30px;
}

.member-info h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #1a202c;
}

.member-info p {
    color: #718096;
    line-height: 1.6;
}

.member-info p:first-of-type {
    font-weight: 500;
    color: #4299e1;
    margin-bottom: 10px;
}

/* 企业文化 */
.company-culture {
    padding: 100px 0;
    background: #f7fafc;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.culture-item {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    transition: all 0.3s ease;
}

.culture-item:hover .culture-icon {
    transform: scale(1.1) rotate(5deg);
}

.culture-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a202c;
}

.culture-item p {
    color: #718096;
    line-height: 1.6;
}

/* 企业文化图标 */
.icon-mission::before {
    content: '🎯';
}

.icon-vision::before {
    content: '🌟';
}

.icon-values::before {
    content: '💎';
}

.icon-philosophy::before {
    content: '📜';
}

/* 联系信息 */
.contact-info {
    padding: 100px 0;
    background: #fff;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.info-item {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.info-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.info-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    transition: all 0.3s ease;
}

.info-item:hover .info-icon {
    transform: scale(1.1) rotate(5deg);
}

.info-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #1a202c;
}

.info-item p {
    color: #718096;
    line-height: 1.6;
    margin-bottom: 8px;
}

.info-item p:last-child {
    margin-bottom: 0;
}

/* 联系表单 */
.contact-form-section {
    padding: 100px 0;
    background: #f7fafc;
}

.form-content {
    display: flex;
    gap: 60px;
    align-items: center;
    flex-wrap: wrap;
    background: #fff;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-text {
    flex: 1;
    min-width: 300px;
}

.form-text h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a202c;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-text p {
    color: #718096;
    line-height: 1.8;
}

.contact-form {
    flex: 1;
    min-width: 300px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 250px;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #1a202c;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
    background: #fff;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form button {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    background: linear-gradient(90deg, #4299e1, #805ad5);
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.contact-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
}

/* 地图 */
.map-section {
    padding: 100px 0;
    background: #fff;
}

.map-container {
    margin-top: 50px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    height: 400px;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #4299e1, #805ad5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.map-placeholder:hover {
    transform: scale(1.02);
}

.map-content h4 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.map-content p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 联系图标 */
.icon-phone::before {
    content: '📞';
}

.icon-email::before {
    content: '📧';
}

.icon-address::before {
    content: '📍';
}

.icon-time::before {
    content: '⏰';
}

/* 响应式设计 */
@media (max-width: 992px) {
    .profile-content {
        flex-direction: column;
        text-align: center;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-year {
        left: 30px;
        transform: translateX(-50%);
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 80px;
        margin-right: 0;
        text-align: left;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: stretch;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }
    
    .process-step {
        min-width: auto;
    }
    
    .types-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .profile-image {
        height: 300px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .team-grid,
    .culture-grid,
    .types-grid {
        grid-template-columns: 1fr;
    }
}