/* 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: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    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 h2 {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient 3s ease infinite;
    font-weight: 700;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-menu a:hover {
    color: #ff6b6b;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    transition: width 0.3s ease;
}

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

/* 英雄区域样式 */
.hero {
    padding: 120px 0 80px;
    display: flex;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding: 0 20px 0 60px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

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

.btn-secondary:hover {
    background: white;
    color: #667eea;
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
    border-radius: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.app-preview {
    text-align: center;
    color: white;
}

.app-header {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.feature-text {
    font-size: 1.1rem;
    font-weight: 500;
}

/* APP截图展示区域 */
.screenshots {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f4fd 100%);
}

.screenshots h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #333;
    position: relative;
}

.screenshots h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.screenshots p {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 50px;
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    max-width: 1000px;
    margin: 0 auto;
}

.screenshot-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background: white;
}

.screenshot-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.screenshot-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

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

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 30px 20px 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    text-align: left;
}

.screenshot-item:hover .screenshot-overlay {
    transform: translateY(0);
}

.screenshot-overlay h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    font-weight: 600;
    text-align: left;
}

.screenshot-overlay p {
    font-size: 0.9rem;
    margin: 0;
    opacity: 0.9;
    color: white;
    text-align: left;
}

/* 功能特色区域 */
.features {
    padding: 100px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #333;
    position: relative;
}

.features h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-card .feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

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

/* 个人开发特色区域 */
.personal-dev {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.personal-dev h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: white;
    position: relative;
}

.personal-dev h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.personal-dev-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.personal-dev-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: white;
}

.personal-dev-text p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.8;
}

.dev-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.dev-feature {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.dev-feature:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.dev-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.dev-details h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: white;
    font-weight: 600;
}

.dev-details p {
    font-size: 0.9rem;
    margin: 0;
    opacity: 0.8;
    line-height: 1.5;
}

.personal-dev-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.dev-stat {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.dev-stat:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.dev-stat h3 {
    font-size: 3rem;
    color: #4ecdc4;
    margin-bottom: 10px;
    font-weight: 700;
}

.dev-stat p {
    color: white;
    font-size: 1.1rem;
    margin: 0;
    opacity: 0.9;
}

/* 关于我们区域 */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #333;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    margin-top: 20px;
}

.about-text li {
    padding: 10px 0;
    color: #666;
    position: relative;
    padding-left: 30px;
}

.about-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4ecdc4;
    font-weight: bold;
    font-size: 1.2rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: #ff6b6b;
    margin-bottom: 10px;
    font-weight: 700;
}

.stat-item p {
    color: #666;
    font-size: 1.1rem;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.download h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.download-info {
    margin-bottom: 50px;
}

.platform-status {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.current-platform,
.coming-soon {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    min-width: 200px;
}

.current-platform:hover,
.coming-soon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.platform-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.platform-text h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: white;
    font-weight: 600;
}

.platform-text p {
    font-size: 0.9rem;
    margin: 0;
    opacity: 0.8;
}

.coming-soon {
    opacity: 0.7;
}

.coming-soon .platform-text p {
    color: #ffd700;
    font-weight: 500;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    text-align: left;
}

.btn-title {
    display: block;
    font-weight: 600;
    font-size: 1.1rem;
}

.btn-subtitle {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 页脚样式 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3, .footer-section h4 {
    margin-bottom: 20px;
    color: #4ecdc4;
}

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

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

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

.footer-section a:hover {
    color: #4ecdc4;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: #999;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 60px;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
        margin-bottom: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .platform-status {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .current-platform,
    .coming-soon {
        min-width: 250px;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        max-width: 90%;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .features h2, .about-text h2, .download h2 {
        font-size: 2rem;
    }
    
    .about-stats {
        flex-direction: column;
    }
    
    .screenshot-gallery {
        grid-template-columns: 1fr;
        gap: 15px;
        max-width: 90%;
    }
    
    .personal-dev-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .dev-features {
        grid-template-columns: 1fr;
    }
    
    .personal-dev-stats {
        flex-direction: row;
        justify-content: space-around;
    }
}