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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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



/* 导航栏 */
.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: #4a6cf7;
}

.logo h1 a {
    text-decoration: none;
    color: inherit;
}

.logo h1 i {
    margin-right: 8px;
    color: #4a6cf7;
    font-size: 20px;
}

.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: #4a6cf7;
}

.btn-primary {
    display: inline-block;
    background-color: #4a6cf7;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #3a5ad8;
    color: #fff;
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: #4a6cf7;
    padding: 10px 20px;
    border: 1px solid #4a6cf7;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #4a6cf7;
    color: #fff;
}

.btn-molili {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 105, 180, 0.5);
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    color: #fff;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-molili:hover {
    box-shadow: 0 0 20px rgba(255, 105, 180, 0.8), 0 0 30px rgba(255, 105, 180, 0.5);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #ff8fab 0%, #d6487d 100%);
}

.btn-molili i {
    font-size: 18px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

.mobile-menu {
    display: none;
    cursor: pointer;
}

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

/* 英雄区 */
.hero {
    margin-top: 70px;
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.hero-content {
    text-align: center;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #333;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #666;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

/* 核心卖点 */
.core-values {
    padding: 100px 0;
    background-color: #fff;
}

.core-values h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

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

.value-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.value-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: #4a6cf7;
}

.value-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

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

/* 核心功能 */
.features {
    padding: 100px 0;
    background-color: #f5f7fa;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

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

/* 应用场景 */
.scenarios {
    padding: 100px 0;
    background-color: #fff;
}

.scenarios h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

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

.scenario-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.scenario-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    color: #4a6cf7;
}

.scenario-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

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

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

/* 应用场景 */
.usage-scenarios {
    padding: 100px 0;
    background-color: #f5f7fa;
}

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

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

.scenarios-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.scenario-category {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.scenario-category h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #4a6cf7;
}

.scenario-category ul {
    list-style: none;
}

.scenario-category li {
    margin-bottom: 10px;
    color: #666;
    position: relative;
    padding-left: 20px;
}

.scenario-category li:before {
    content: "•";
    color: #4a6cf7;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 使用教程 */
.tutorial {
    padding: 100px 0;
    background-color: #f5f7fa;
}

.tutorial h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

.tutorial-content {
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.tutorial-tab {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 1px solid #e0e0e0;
}

.tab-btn {
    background: none;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #666;
}

.tab-btn.active {
    color: #4a6cf7;
    border-bottom: 2px solid #4a6cf7;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.tab-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

.tab-content li {
    margin-bottom: 15px;
    color: #333;
}

.tab-content ul {
    margin-left: 20px;
    margin-top: 10px;
}

.tab-content ul li {
    margin-bottom: 8px;
    color: #666;
}

.tab-content code {
    background-color: #f0f0f0;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}

/* 常见问题 */
.faq {
    padding: 100px 0;
    background-color: #fff;
}

.faq h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
}

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

.faq-category {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.faq-category h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.faq-item {
    margin-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 20px;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.faq-question {
    font-weight: 500;
    margin-bottom: 10px;
    color: #333;
    cursor: pointer;
}

.faq-answer {
    color: #666;
    line-height: 1.6;
}

/* 邀请制内测 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #4a6cf7 0%, #3a5ad8 100%);
    color: #fff;
    text-align: center;
}

.download h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.download p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.download-buttons .btn-primary {
    background-color: #fff;
    color: #4a6cf7;
}

.download-buttons .btn-primary:hover {
    background-color: #f0f0f0;
}

.download-buttons .btn-secondary {
    background-color: transparent;
    color: #fff;
    border-color: #fff;
}

.download-buttons .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 页脚 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
}

.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: 700;
    margin-bottom: 15px;
    color: #4a6cf7;
}

.footer-info p {
    opacity: 0.8;
}

.footer-links h4,
.footer-social h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

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

.footer-links a,
.footer-social a {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        padding: 20px;
        flex-direction: column;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 10px 0;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .core-values h2,
    .features h2,
    .scenarios h2,
    .tutorial h2,
    .faq h2,
    .download h2 {
        font-size: 28px;
    }
    
    .tutorial-content {
        padding: 20px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 16px;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .core-values h2,
    .features h2,
    .scenarios h2,
    .tutorial h2,
    .faq h2,
    .download h2 {
        font-size: 24px;
    }
    
    .value-card,
    .feature-card,
    .scenario-card,
    .faq-category {
        padding: 20px;
    }
}

/* 移动端菜单动画 */
.mobile-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 常见问题动画 */
.faq-question.active {
    font-weight: 600;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}