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

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

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

/* Header */
.header {
    background: #13776d;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: 70px;
}

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

.logo {
    display: flex;
    align-items: center;
    color: white;
    font-size: 20px;
    font-weight: bold;
}

.logo img {
    width: 150px !important;
    height: 50px !important;
    margin-right: 10px;
    border-radius: 0;
    object-fit: contain;
    max-width: 150px;
    max-height: 50px;
}

.nav {
    display: flex;
    gap: 30px;
}

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

.nav a:hover {
    opacity: 0.8;
}

.login-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s;
}

.login-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Hero Section */
.hero {
    background: #0d9488;
    padding: 0;
    color: white;
    position: relative;
    overflow: hidden;
    height: 500px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    width: 100%;
    height: 100%;
    background-size: contain;
    background-position: center top;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-btn {
    padding: 14px 40px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: normal;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.hero-btn.primary {
    background: white;
    color: #0d9488;
}

.hero-btn.primary:hover {
    background: #f5f5f5;
}

.hero-btn.secondary {
    background: transparent;
    border: 1px solid white;
    color: white;
}

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

/* Feature Buttons */
.primary-btn {
    background: #4CAF50;
    border: none;
    color: white;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(76, 175, 80, 0.3);
}

.secondary-btn {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #333;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    border-radius: 12px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.feature-card p {
    font-size: 14px;
    color: #666;
}

/* Showcase Section */
.showcase {
    padding: 80px 0;
}

.showcase.bg-gray {
    background: #f8f9fa;
}

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

.showcase-content {
    flex: 1;
    max-width: 500px;
}

.showcase-content h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #333;
}

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

.showcase-content ul {
    list-style: none;
    margin-bottom: 30px;
}

.showcase-content li {
    padding: 10px 0;
    font-size: 16px;
    color: #555;
}

.showcase-image img {
    width: 800px;
    height: auto;
    max-width: 100%;
    object-fit: contain;
    border-radius: 0;
    box-shadow: none;
}

/* All-in-one Section */
.all-in-one {
    padding: 80px 0;
}

.all-in-one h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
    color: #333;
}

.all-in-one p {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 50px;
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.scene-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.scene-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.scene-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
}

.scene-card p {
    font-size: 13px;
    color: #666;
}

/* File Preview Section */
.file-preview {
    padding: 80px 0;
    background: #f8f9fa;
}

.file-preview h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
    color: #333;
}

.file-preview p {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 50px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.preview-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

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

.preview-item h4 {
    padding: 20px;
    text-align: center;
    color: #333;
}

/* Apps Grid */
.apps-grid {
    padding: 80px 0;
}

.apps-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.app-item {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    transition: transform 0.3s;
}

.app-item:hover {
    transform: translateY(-5px);
}

/* News Section */
.news {
    padding: 80px 0;
    background: #f8f9fa;
}

.news h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
    color: #333;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

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

.news-card h3 {
    padding: 20px 20px 10px;
    font-size: 16px;
    color: #333;
    line-height: 1.4;
}

.news-card h3 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.news-card h3 a:hover {
    color: #0d9488;
    text-decoration: underline;
}

.news-card p {
    padding: 0 20px 20px;
    font-size: 13px;
    color: #999;
}

.news-btn {
    display: block;
    margin: 0 auto;
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.news-btn:hover {
    background: #667eea;
    color: white;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    text-align: center;
}

.stats h2 {
    font-size: 28px;
    margin-bottom: 50px;
    color: #333;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-box {
    text-align: center;
}

.stat-box .number {
    display: block;
    font-size: 48px;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 10px;
}

.stat-box .label {
    font-size: 14px;
    color: #666;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    text-align: center;
    color: white;
}

.cta h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

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

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

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 15px 30px;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.download-btn .icon {
    font-size: 32px;
}

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

.download-btn .small {
    display: block;
    font-size: 12px;
    opacity: 0.8;
}

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

/* Footer */
.footer {
    background: #2c3e50;
    padding: 60px 0 30px;
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 16px;
}

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

.footer-section li {
    padding: 8px 0;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #bdc3c7;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.social-links a:hover {
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .hero .container,
    .showcase .container {
        flex-direction: column;
        text-align: center;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero-image img,
    .showcase-image img {
        margin-top: 30px;
        width: 100%;
    }

    .feature-grid,
    .scene-grid,
    .preview-grid,
    .news-grid,
    .stats-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .nav {
        display: none;
    }

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