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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
}

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

.header {
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo h1 {
    font-size: 28px;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    padding: 8px 16px;
    border-radius: 20px;
}

.nav a:hover,
.nav a.active {
    background: linear-gradient(90deg, #f7931a, #ffb347);
    color: #000;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 100px 0;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    background-size: 50px 50px;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-desc {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 50px;
}

.btn {
    padding: 15px 40px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(90deg, #f7931a, #ffb347);
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(247, 147, 26, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    text-align: center;
    color: #ccc;
    margin-bottom: 50px;
    font-size: 18px;
}

.features,
.products,
.download,
.news,
.contact,
.about,
.faq {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.03);
    color: #fff;
}

.features-grid,
.products-grid,
.news-grid,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card,
.product-card,
.news-card,
.contact-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s;
}

.feature-card:hover,
.product-card:hover,
.news-card:hover,
.contact-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(247, 147, 26, 0.5);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3,
.product-card h3,
.news-card h3,
.contact-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #f7931a;
}

.feature-card p,
.product-card p,
.news-card p,
.contact-card p {
    color: #ccc;
    line-height: 1.8;
}

.product-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.product-icon {
    font-size: 36px;
}

.product-features {
    list-style: none;
    margin-top: 20px;
}

.product-features li {
    padding: 8px 0;
    color: #ccc;
}

.download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
}

.download-desc {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 20px 40px;
    border-radius: 15px;
    text-decoration: none;
    color: #fff;
    transition: all 0.3s;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

.btn-icon {
    font-size: 48px;
}

.btn-label {
    display: block;
    font-size: 18px;
    font-weight: 600;
}

.btn-desc {
    display: block;
    font-size: 14px;
    opacity: 0.8;
}

.download-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.news-date {
    color: #999;
    font-size: 14px;
}

.news-tag {
    background: linear-gradient(90deg, #f7931a, #ffb347);
    color: #000;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.news-link {
    display: inline-block;
    margin-top: 15px;
    color: #f7931a;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.news-link:hover {
    color: #ffb347;
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-link {
    display: inline-block;
    margin-top: 15px;
    color: #f7931a;
    text-decoration: none;
    font-weight: 500;
}

.social-links {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.social-link {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.social-link:hover {
    color: #f7931a;
}

.contact-address {
    display: block;
    margin-top: 15px;
    color: #ccc;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

.about-text h3 {
    font-size: 24px;
    color: #f7931a;
    margin-bottom: 20px;
    margin-top: 30px;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: #ccc;
    line-height: 1.8;
    margin-bottom: 15px;
}

.timeline {
    margin-top: 20px;
}

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border-left: 3px solid #f7931a;
}

.timeline-year {
    font-weight: 700;
    color: #f7931a;
    min-width: 80px;
}

.timeline-item p {
    margin: 0;
    color: #ccc;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-box {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
}

.stat-icon {
    font-size: 36px;
    display: block;
    margin-bottom: 10px;
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #f7931a;
    margin-bottom: 5px;
}

.stat-label {
    display: block;
    color: #ccc;
    font-size: 14px;
}

.about-values {
    margin-top: 60px;
}

.about-values h3 {
    font-size: 28px;
    text-align: center;
    color: #f7931a;
    margin-bottom: 40px;
}

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

.value-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.value-card:hover {
    transform: translateY(-5px);
    border-color: rgba(247, 147, 26, 0.5);
}

.value-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

.value-card h4 {
    font-size: 20px;
    color: #f7931a;
    margin-bottom: 10px;
}

.value-card p {
    color: #ccc;
    font-size: 14px;
}

.faq {
    background: rgba(15, 12, 41, 0.95);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 20px;
}

.faq-item h3 {
    font-size: 20px;
    color: #f7931a;
    margin-bottom: 15px;
}

.faq-item p {
    color: #ccc;
    line-height: 1.8;
}

.footer {
    background: rgba(10, 8, 28, 0.98);
    padding: 60px 0 30px;
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p {
    color: #999;
    line-height: 1.8;
}

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

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #f7931a;
}

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

.footer-bottom p {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }

    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .nav a {
        font-size: 14px;
        padding: 6px 12px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 16px;
    }

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

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

    .section-title {
        font-size: 28px;
    }

    .features-grid,
    .products-grid,
    .news-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 24px;
    }

    .hero h2 {
        font-size: 26px;
    }

    .btn {
        padding: 12px 30px;
        font-size: 16px;
    }

    .stat-number {
        font-size: 28px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
}