/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    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;
}

.nav-logo .logo-link {
    display: flex;
    align-items: center;
    gap: 10px; /* 图片和文字之间的间距 */
    text-decoration: none;
    color: #1f2937; /* 文字颜色 */
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-logo img {
    height: 40px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin-left: auto; /* 将菜单推到右侧 */
}

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

.nav-menu a:hover {
    color: #2563eb;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    justify-content: center; /* 水平居中 flex 项目 */
    align-items: center;
    padding: 80px 20px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-container {
    flex: 1;
    max-width: 1200px;
    text-align: center; /* 将容器内所有文本居中 */
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

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

.maya-preview {
    width: 400px;
    height: 300px;
    background: #2a2a2a;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.preview-screen {
    width: 100%;
    height: 100%;
    background: #1a1a1a;
    border-radius: 5px;
    position: relative;
    overflow: hidden;
}

.preview-timeline {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to right, #4ade80, #06b6d4, #8b5cf6);
    opacity: 0.7;
}

.preview-curves {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    height: 150px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 100"><path d="M0,80 Q50,20 100,40 T200,30 T300,50" stroke="%2306b6d4" stroke-width="2" fill="none"/></svg>') no-repeat center;
    background-size: contain;
}

.preview-tools {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(34, 197, 94, 0.9);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: white;
    color: #2563eb;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

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

.feature-card {
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
}

/* Demo Section */
.demo {
    padding: 80px 0;
    background: #f9fafb;
}

.demo h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

.demo-container {
    max-width: 800px;
    margin: 0 auto;
}

.demo-placeholder {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    cursor: pointer;
    transition: transform 0.3s;
}

.demo-placeholder:hover {
    transform: scale(1.02);
}

.play-button {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1rem;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: white;
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

.pricing-card {
    max-width: 400px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border: 2px solid #2563eb;
    position: relative;
}

.pricing-card::before {
    content: "MOST POPULAR";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563eb;
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.price-header {
    text-align: center;
    margin-bottom: 2rem;
}

.price-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.currency {
    font-size: 1.2rem;
    color: #6b7280;
}

.amount {
    font-size: 4rem;
    font-weight: 700;
    color: #2563eb;
}

.period {
    font-size: 1.2rem;
    color: #6b7280;
}

.price-features {
    list-style: none;
    margin-bottom: 2rem;
}

.price-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.price-features li:last-child {
    border-bottom: none;
}

/* Download Section */
.download {
    padding: 80px 0;
    background: #f9fafb;
}

.download h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

.download-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.download-requirements h3 {
    margin-bottom: 1rem;
    color: #1f2937;
}

.download-requirements ul {
    list-style: none;
}

.download-requirements li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.download-requirements li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: bold;
}

.download-buttons {
    text-align: center;
}

.download-note {
    margin-top: 1rem;
    color: #6b7280;
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: white;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1f2937;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3,
.contact-form h3 {
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.contact-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f3f4f6;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 12px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #2563eb;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

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

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

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 20px 40px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-image {
        margin-top: 2rem;
    }
    
    .maya-preview {
        width: 300px;
        height: 225px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .download-info,
    .contact-content,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        display: none;
    }
}