/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(to bottom, #f5f7fa 0%, #c3cfe2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

.logo h1 {
    font-size: 1.9rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    letter-spacing: 1.5px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.3rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(255,255,255,0.15);
    transition: width 0.3s ease;
    z-index: -1;
    border-radius: 25px;
}

.nav-links a:hover::before,
.nav-links a.active::before {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255,255,255,0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255,255,255,0.2);
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
    pointer-events: none;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    animation: rotate 25s linear infinite reverse;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
    letter-spacing: 2px;
    font-weight: 700;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s both;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮样式 */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    color: #667eea;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #f8f8f8 0%, #e8e8e8 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.btn-secondary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a3f91 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* 通用区块样式 */
section {
    padding: 70px 0;
    position: relative;
}

/* 页面间过渡效果 */
.page-transition {
    animation: fadeIn 0.5s ease;
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 55px;
    color: #333;
    position: relative;
    font-weight: 700;
    letter-spacing: 1.5px;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% 100%;
    margin: 25px auto 0;
    border-radius: 3px;
    animation: gradientMove 3s ease infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* 公司简介预览 */
.about-preview {
    background-color: white;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.15rem;
    line-height: 2;
    margin-bottom: 25px;
    color: #555;
    text-align: justify;
}

/* 核心业务 */
.services {
    background-color: #f9f9f9;
}

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

.service-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    padding: 45px 35px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.08), transparent);
    transition: left 0.6s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}

.service-icon {
    font-size: 4.5rem;
    margin-bottom: 25px;
    filter: drop-shadow(0 4px 8px rgba(102, 126, 234, 0.3));
    transition: transform 0.4s ease;
    display: inline-block;
}

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

.service-card h3 {
    font-size: 1.6rem;
    margin-bottom: 18px;
    color: #667eea;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.service-card h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.service-card:hover h3::after {
    width: 60px;
}

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

/* 优势特点 */
.features {
    background-color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 35px 25px;
    border-left: 4px solid transparent;
    transition: all 0.4s ease;
    border-radius: 10px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.feature-item:hover::before {
    opacity: 1;
}

.feature-item > * {
    position: relative;
    z-index: 1;
}

.feature-item:hover {
    border-left-color: #667eea;
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.3);
}

.feature-item:hover h4,
.feature-item:hover p {
    color: white;
}

.feature-item h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #667eea;
    font-weight: 700;
    transition: color 0.4s ease;
}

.feature-item p {
    color: #666;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 60px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h4 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: #667eea;
    font-weight: 700;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.footer-section p {
    line-height: 1.8;
    opacity: 0.9;
}

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

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

.footer-section ul li a {
    color: white;
    text-decoration: none;
    opacity: 0.85;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 0;
}

.footer-section ul li a::before {
    content: '›';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: all 0.3s ease;
    color: #667eea;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: #a8b5ff;
    padding-left: 12px;
}

.footer-section ul li a:hover::before {
    opacity: 1;
    left: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    margin-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.9;
}

.icp-link {
    color: #a8b5ff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.icp-link:hover {
    color: white;
    text-decoration: underline;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links a {
        padding: 0.5rem 0.9rem;
        font-size: 0.9rem;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .service-grid,
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-grid,
    .service-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px !important;
        padding-right: 0 !important;
        justify-content: flex-start !important;
    }

    .timeline-year {
        left: 20px !important;
        right: auto !important;
        transform: none !important;
    }

    .timeline-content {
        max-width: 100%;
    }
}

/* ========== 内页专用样式 ========== */

/* 页面标题头 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
}

.page-header p {
    font-size: 1.15rem;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
}

/* 关于我们页面 */
.about-detail {
    background-color: white;
    padding: 70px 0;
}

.company-intro h2,
.company-values h2,
.company-strengths h2 {
    font-size: 2rem;
    margin-bottom: 35px;
    color: #667eea;
    font-weight: 700;
    position: relative;
    padding-left: 15px;
}

.company-intro h2::before,
.company-values h2::before,
.company-strengths h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    height: calc(100% - 10px);
    width: 5px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 3px;
}

.company-intro p {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: 25px;
    color: #555;
    text-align: justify;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 45px;
}

.value-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    padding: 35px 30px;
    border-radius: 15px;
    text-align: center;
    border-left: 4px solid #667eea;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.value-card h3 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: #667eea;
    font-weight: 700;
}

.value-card p {
    color: #666;
    line-height: 1.8;
}

.strengths-list {
    margin-top: 45px;
}

.strength-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    padding: 30px 25px;
    margin-bottom: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.strength-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.strength-item h4 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: #667eea;
    font-weight: 700;
}

.strength-item p {
    color: #666;
    line-height: 1.8;
}

/* 时间轴 */
.timeline-section {
    background-color: #f9f9f9;
    padding: 70px 0;
}

.timeline-section h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 55px;
    color: #667eea;
    font-weight: 700;
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 3px;
}

.timeline-item {
    display: flex;
    margin-bottom: 45px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    justify-content: flex-start;
    padding-left: 50%;
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
    padding-right: 50%;
}

.timeline-year {
    position: absolute;
    top: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: bold;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    font-size: 1.05rem;
}

.timeline-item:nth-child(odd) .timeline-year {
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item:nth-child(even) .timeline-year {
    right: 50%;
    transform: translateX(50%);
}

.timeline-content {
    background: white;
    padding: 30px 25px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    max-width: 400px;
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}

.timeline-content h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: #667eea;
    font-weight: 700;
}

.timeline-content p {
    color: #666;
    line-height: 1.8;
}

/* 产品与服务页面 */
.products-section {
    background-color: white;
    padding: 70px 0;
}

.product-category {
    margin-bottom: 60px;
}

.product-category h3 {
    font-size: 2rem;
    margin-bottom: 40px;
    color: #667eea;
    border-left: 5px solid #667eea;
    padding-left: 15px;
    font-weight: 700;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    padding: 40px 35px;
    border-radius: 15px;
    position: relative;
    transition: all 0.4s ease;
    border: 2px solid transparent;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 18px;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: #667eea;
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.product-card h4 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: #333;
    font-weight: 700;
}

.product-card > p {
    color: #666;
    margin-bottom: 25px;
    line-height: 1.8;
}

.product-features {
    list-style: none;
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px dashed #e0e0e0;
}

.product-features li {
    padding: 10px 0;
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 服务详情 */
.services-detail {
    background-color: #f9f9f9;
    padding: 70px 0;
}

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

.service-detail-card {
    background: white;
    padding: 45px 35px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
}

.service-detail-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.service-detail-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.service-number {
    font-size: 3rem;
    font-weight: bold;
    color: #667eea;
    opacity: 0.2;
    margin-bottom: 20px;
}

.service-detail-card h3 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: #333;
    font-weight: 700;
}

.service-detail-card > p {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.service-details {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.service-details span {
    background: linear-gradient(135deg, #f0f0ff 0%, #e8eaff 100%);
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 0.9rem;
    color: #667eea;
    font-weight: 500;
    border: 2px solid #d0d5ff;
    transition: all 0.3s ease;
}

.service-details span:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
    transform: translateY(-2px);
}

/* 合作流程 */
.process-section {
    background-color: white;
    padding: 70px 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 25px;
    margin-top: 50px;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 85px;
    height: 85px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    font-weight: bold;
    margin: 0 auto 25px;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    transition: all 0.4s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1) rotate(360deg);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
}

.process-step h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: #333;
    font-weight: 700;
}

.process-step p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* CTA 区域 */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 20px;
}

.cta-content {
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 25px;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 35px;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 联系我们页面 */
.contact-section {
    background-color: white;
    padding: 70px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2,
.contact-form h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: #667eea;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.contact-info h2::after,
.contact-form h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 3px;
}

.intro-text,
.form-intro {
    color: #666;
    margin-bottom: 35px;
    line-height: 1.8;
    font-size: 1.05rem;
}

.contact-item {
    display: flex;
    gap: 25px;
    margin-bottom: 35px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    border-radius: 15px;
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.contact-item:hover {
    transform: translateX(10px);
    border-color: #667eea;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.contact-icon {
    font-size: 2.8rem;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: #333;
    font-weight: 700;
}

.contact-details p {
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

.social-links {
    margin-top: 45px;
    padding-top: 35px;
    border-top: 2px dashed #e0e0e0;
}

.social-links h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #333;
    font-weight: 700;
}

.social-icons {
    display: flex;
    gap: 20px;
}

.social-icons span {
    font-size: 2.5rem;
    cursor: pointer;
    transition: transform 0.3s ease;
    display: inline-block;
}

.social-icons span:hover {
    transform: scale(1.2) rotate(10deg);
}

/* 表单样式 */
.form-group {
    margin-bottom: 28px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #333;
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.submit-btn:active {
    transform: translateY(-1px);
}

/* FAQ 部分 */
.faq-section {
    background-color: #f9f9f9;
    padding: 70px 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.faq-item {
    background: white;
    padding: 35px 30px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    border-left: 4px solid transparent;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.15);
    border-left-color: #667eea;
}

.faq-item h4 {
    font-size: 1.2rem;
    margin-bottom: 18px;
    color: #667eea;
    font-weight: 700;
}

.faq-item p {
    color: #666;
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 地图占位 */
.map-section {
    background-color: white;
    padding: 70px 0;
}

.map-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.map-placeholder p {
    font-size: 1.2rem;
    margin: 12px 0;
    opacity: 0.95;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.3);
}