/* 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;
    background-color: #f5f5f5;
}

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

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #1989fa;
}

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

.nav-links li {
    margin-left: 30px;
}

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

.nav-links a:hover {
    color: #1989fa;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #1989fa 0%, #0056b3 100%);
    color: #fff;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 16px;
}

.primary-btn {
    background-color: #fff;
    color: #1989fa;
    border: 2px solid #fff;
}

.primary-btn:hover {
    background-color: transparent;
    color: #fff;
}

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

.secondary-btn:hover {
    background-color: #fff;
    color: #1989fa;
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 服务介绍样式 */
.services {
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border-color: #1989fa;
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(25, 137, 250, 0.1);
    border-radius: 50%;
    color: #1989fa;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

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

/* 解决方案样式 */
.solutions {
    background-color: #f5f5f5;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.solution-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.solution-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 20px;
    color: #333;
}

.solution-card p {
    color: #666;
    line-height: 1.6;
    margin: 0 20px 20px;
}

/* 成功案例样式 */
.cases {
    background-color: #fff;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-card {
    background-color: #f9f9f9;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.case-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.case-info {
    padding: 20px;
}

.case-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.case-info p {
    color: #666;
    line-height: 1.6;
}

/* 关于我们样式 */
.about {
    background-color: #f5f5f5;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

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

.about-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #333;
}

.about-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    min-width: 100px;
}

.stat-item h3 {
    font-size: 36px;
    font-weight: 700;
    color: #1989fa;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* 联系我们样式 */
.contact {
    background-color: #fff;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 20px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: #1989fa;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
}

.contact-item p {
    color: #666;
    margin: 0;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1989fa;
    box-shadow: 0 0 0 2px rgba(25, 137, 250, 0.1);
}

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

/* 页脚样式 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1989fa;
}

.footer-logo p {
    color: #ccc;
    line-height: 1.6;
}

.footer-links {
    flex: 1;
    min-width: 200px;
}

.footer-links h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #1989fa;
}

.footer-contact {
    flex: 1;
    min-width: 250px;
}

.footer-contact h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-contact p {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #ccc;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

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

    .nav-links li {
        margin: 25px 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero h2 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .about-content {
        flex-direction: column;
    }

    .contact-content {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    section {
        padding: 60px 0;
    }

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

    .about-stats {
        justify-content: center;
    }
}

/* 微信咨询区域样式 */
.wechat-section {
    margin-top: 30px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
}

.wechat-section h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    text-align: center;
}

.wechat-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.wechat-qr-static {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    background-color: #fff;
    padding: 10px;
    border: 1px solid #e0e0e0;
    display: block;
    margin: 0 auto;
    object-fit: cover;
}

.wechat-details {
    width: 100%;
    text-align: center;
}

.wechat-label {
    font-size: 16px;
    color: #666;
    margin-bottom: 12px;
    font-weight: 500;
    display: block;
}

.wechat-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.wechat-id {
    font-size: 18px;
    font-weight: 700;
    color: #1989fa;
    background-color: #f0f8ff;
    padding: 8px 16px;
    border-radius: 8px;
    border: 2px solid #e0f0ff;
    min-width: auto;
    max-width: 100%;
    text-align: center;
    word-break: break-all;
}

.copy-btn {
    background-color: #1989fa;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: auto;
}

.copy-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(25, 137, 250, 0.3);
}

.copy-btn:active {
    transform: translateY(0);
}

.wechat-tip {
    font-size: 14px;
    color: #999;
    margin-top: 15px;
    font-style: italic;
    line-height: 1.5;
}