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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

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

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #2c5aa0;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #2c5aa0;
    transition: width 0.3s ease;
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #fff;
    color: #2c5aa0;
}

.btn-primary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
    background: #fff;
    color: #2c5aa0;
    transform: translateY(-2px);
}

.hero-graphic {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    font-size: 4rem;
    opacity: 0.8;
}

.hero-graphic i {
    animation: float 3s ease-in-out infinite;
}

.hero-graphic i:nth-child(2) {
    animation-delay: 1s;
}

.hero-graphic i:nth-child(3) {
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #2c5aa0;
    margin-bottom: 1rem;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2c5aa0, #667eea);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    font-size: 1.2rem;
    color: #666;
}

/* 优势展示样式 */
.advantages {
    padding: 100px 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2c5aa0, #667eea);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: #2c5aa0;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border: 2px solid #2c5aa0;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.advantage-icon i {
    font-size: 2rem;
    color: #2c5aa0;
    transition: transform 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    background: linear-gradient(135deg, #2c5aa0, #667eea);
    transform: scale(1.1);
}

.advantage-card:hover .advantage-icon i {
    color: white;
    transform: scale(1.1);
}

.advantage-card h3 {
    color: #2c5aa0;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

/* 关于我们样式 */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.about-text h3 {
    font-size: 2rem;
    color: #2c5aa0;
    margin-bottom: 1.5rem;
}

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

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-item h4 {
    font-size: 2.5rem;
    color: #2c5aa0;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #666;
    font-weight: 500;
}

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

.about-img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: cover;
}

.about-img:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* 服务流程样式 */
.process {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
    overflow: hidden;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(44,90,160,0.05)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.process-container {
    position: relative;
    z-index: 1;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.process-step {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2c5aa0, #667eea);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2c5aa0, #667eea);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.3);
}

.step-content h3 {
    color: #2c5aa0;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

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

.process-cta {
    text-align: center;
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.2rem;
    border-radius: 50px;
    box-shadow: 0 5px 20px rgba(44, 90, 160, 0.3);
    transition: all 0.3s ease;
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(44, 90, 160, 0.4);
}

/* 流程步骤连接线 */
.process-steps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #2c5aa0, transparent);
    z-index: -1;
    display: none;
}

@media (min-width: 1200px) {
    .process-steps {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .process-steps::before {
        display: block;
    }
}

/* 服务项目样式 */
.services {
    padding: 100px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: #2c5aa0;
    margin-bottom: 1rem;
}

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

/* 成功案例样式 */
.cases {
    padding: 100px 0;
    background: #f8f9fa;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.case-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 3rem;
}

.case-content {
    padding: 2rem;
}

.case-content h3 {
    font-size: 1.5rem;
    color: #2c5aa0;
    margin-bottom: 1rem;
}

.case-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.case-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.case-stats span {
    background: #e3f2fd;
    color: #2c5aa0;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 新闻动态样式 */
.news {
    padding: 100px 0;
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    display: flex;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-date {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 1.5rem;
    text-align: center;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-date .day {
    font-size: 2rem;
    font-weight: 700;
    display: block;
}

.news-date .month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.news-content {
    padding: 1.5rem;
    flex: 1;
}

.news-content h3 {
    font-size: 1.2rem;
    color: #2c5aa0;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.news-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.9rem;
}

.read-more {
    color: #2c5aa0;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
}

.read-more:hover {
    text-decoration: underline;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: #f8f9fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.2rem;
    margin-right: 1rem;
    flex-shrink: 0;
}

.contact-details h3 {
    color: #2c5aa0;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #666;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2c5aa0;
}

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

.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
    background-color: white;
}

.form-group select:focus {
    outline: none;
    border-color: #2c5aa0;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-status.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-status.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.form-status.loading {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
    display: block;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section ul li a:hover {
    color: #fff;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #34495e;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    text-decoration: none;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #2c5aa0;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .logo-img {
        height: 40px;
        max-width: 150px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-img {
        max-width: 300px;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
    }

    .process-step {
        margin-bottom: 1rem;
    }

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

    .advantage-card {
        margin-bottom: 1rem;
    }

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

    .hero-graphic {
        font-size: 3rem;
    }

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

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

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .service-card,
    .case-card,
    .news-card {
        margin: 0 10px;
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 微信弹窗样式 */
.wechat-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.wechat-modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    overflow: hidden;
}

.wechat-modal-header {
    background: linear-gradient(135deg, #2c5aa0, #667eea);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wechat-modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.close {
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.close:hover {
    opacity: 0.7;
}

.wechat-modal-body {
    padding: 2rem;
}

.wechat-qr-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.wechat-qr-code {
    text-align: center;
}

.qr-image {
    width: 150px;
    height: 150px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.qr-tip {
    color: #666;
    font-size: 0.9rem;
    margin: 0;
}

.wechat-info h4 {
    color: #2c5aa0;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.wechat-info p {
    color: #666;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.wechat-features {
    margin-top: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
}

.feature-item i {
    color: #4caf50;
    margin-right: 0.8rem;
    font-size: 1.1rem;
}

.feature-item span {
    color: #666;
    font-size: 0.9rem;
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .wechat-modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .wechat-qr-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .qr-image {
        width: 120px;
        height: 120px;
    }
    
    .wechat-modal-header {
        padding: 1rem 1.5rem;
    }
    
    .wechat-modal-body {
        padding: 1.5rem;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}