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

body {
    font-family: 'Microsoft YaHei', 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

/* 导航栏 */
.navbar {
    background-color: #ffffff;
    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: bold;
    color: #2e89f5;
    margin: 0;
}

.logo span {
    font-size: 14px;
    color: #666;
    margin-left: 10px;
}

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

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #2e89f5;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #52b6ff 0%, #2e89f5 100%);
    color: white;
    padding: 120px 0 80px;
    margin-top: 70px;
}

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

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: white;
    color: #2e89f5;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid white;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 特色功能 */
.features {
    padding: 100px 0;
    background-color: white;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #1f2d3d;
}

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

.feature-item {
    text-align: center;
    padding: 40px 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #52b6ff 0%, #2e89f5 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 32px;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1f2d3d;
}

.feature-item p {
    color: #666;
    font-size: 16px;
}

/* 产品介绍 */
.product-intro {
    padding: 100px 0;
    background-color: #f5f7fa;
}

.product-intro h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #1f2d3d;
}

.product-intro p {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.product-features {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.product-feature {
    flex: 1;
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.product-feature h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1f2d3d;
}

.product-feature p {
    color: #666;
    font-size: 16px;
}

/* 应用下载 */
.download {
    padding: 100px 0;
    background-color: white;
}

.download h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #1f2d3d;
}

.download p {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 60px;
}

.download-options {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
}

.qrcode img {
    width: 200px;
    height: 200px;
    border-radius: 10px;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.btn-download {
    display: flex;
    align-items: center;
    background-color: #f9f9f9;
    padding: 15px 30px;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

.btn-download i {
    font-size: 32px;
    margin-right: 20px;
}

.btn-download div span {
    font-size: 18px;
    font-weight: bold;
    display: block;
}

.btn-download div p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* 客户评价 */
.testimonials {
    padding: 100px 0;
    background-color: #f5f7fa;
}

.testimonials h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #1f2d3d;
}

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

.testimonial-item {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.testimonial-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 30px;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #e0e0e0;
    margin-right: 15px;
}

.testimonial-author h4 {
    font-size: 16px;
    font-weight: bold;
    margin: 0;
    color: #1f2d3d;
}

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

/* 页脚 */
.footer {
    background-color: #1f2d3d;
    color: white;
    padding: 80px 0 40px;
}

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

.footer-info h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
}

.footer-info p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
}

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

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

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-contact li {
    display: flex;
    align-items: center;
    font-size: 14px;
    opacity: 0.8;
}

.footer-contact i {
    margin-right: 10px;
    font-size: 16px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    opacity: 0.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        padding: 10px 20px;
    }

    .nav-links {
        margin-top: 15px;
    }

    .nav-links li {
        margin-left: 20px;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-content h1 {
        font-size: 36px;
    }

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

    .product-features {
        flex-direction: column;
        align-items: center;
    }

    .product-feature {
        width: 100%;
        max-width: 400px;
    }

    .download-options {
        flex-direction: column;
        gap: 40px;
    }

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

    .testimonial-item {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 28px;
    }

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

    .features h2,
    .product-intro h2,
    .download h2,
    .testimonials h2 {
        font-size: 28px;
    }

    .feature-item,
    .product-feature,
    .testimonial-item {
        padding: 30px 20px;
    }
}

/* 产品展示页面样式 */
.product-showcase {
    padding: 100px 0;
    background-color: white;
}

.product-showcase h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #1f2d3d;
}

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

.showcase-item {
    text-align: center;
    padding: 40px 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
    transition: all 0.3s ease;
}

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

.showcase-item img {
    width: 200px;
    height: 200px;
    margin-bottom: 20px;
    border-radius: 10px;
}

.showcase-item h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1f2d3d;
}

.showcase-item p {
    color: #666;
    font-size: 16px;
    margin-bottom: 20px;
}

/* 用户协议页面样式 */
.user-agreement {
    padding: 100px 0;
    background-color: white;
}

.user-agreement h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #1f2d3d;
}

.agreement-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
}

.agreement-content h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #1f2d3d;
}

.agreement-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: #666;
}

.agreement-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.agreement-content li {
    margin-bottom: 10px;
    line-height: 1.6;
    color: #666;
}

/* 联系方式页面样式 */
.contact {
    padding: 100px 0;
    background-color: white;
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #1f2d3d;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #1f2d3d;
}

.contact-info ul {
    list-style: none;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    color: #666;
}

.contact-info i {
    font-size: 24px;
    margin-right: 20px;
    color: #2e89f5;
}

.contact-form {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
}

.contact-form h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #1f2d3d;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: 'Microsoft YaHei', 'Arial', sans-serif;
}

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

.btn-submit {
    background-color: #2e89f5;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: #1a73e8;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}