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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    color: #fff;
    line-height: 1.6;
    min-height: 100vh;
}

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

.header {
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(74, 144, 226, 0.2);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 32px;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: #4a90e2;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
}

.download-btn {
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    color: #fff;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 14px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.4);
}

.hero {
    padding: 150px 0 100px;
    background: linear-gradient(180deg, rgba(74, 144, 226, 0.1) 0%, transparent 100%);
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-left {
    flex: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #4a90e2, #00d4ff, #4a90e2);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shine 3s linear infinite;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

.hero-subtitle {
    font-size: 28px;
    color: #e0e0e0;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 18px;
    color: #a0a0a0;
    margin-bottom: 30px;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(74, 144, 226, 0.1);
    padding: 12px 20px;
    border-radius: 10px;
    border: 1px solid rgba(74, 144, 226, 0.2);
}

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

.feature-text {
    font-size: 14px;
}

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

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: rgba(74, 144, 226, 0.1);
    color: #4a90e2;
    border: 2px solid #4a90e2;
}

.btn-secondary:hover {
    background: rgba(74, 144, 226, 0.2);
}

.hero-right {
    flex: 1;
}

.hero-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.card-icon {
    font-size: 24px;
}

.card-title {
    font-size: 20px;
    font-weight: bold;
}

.market-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.market-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(74, 144, 226, 0.05);
    border-radius: 10px;
}

.market-name {
    font-size: 16px;
    font-weight: bold;
}

.market-price {
    font-size: 16px;
    color: #e0e0e0;
}

.market-change {
    font-size: 14px;
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 15px;
}

.market-change.positive {
    color: #00ff88;
    background: rgba(0, 255, 136, 0.1);
}

.market-change.negative {
    color: #ff4757;
    background: rgba(255, 71, 87, 0.1);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 18px;
    color: #a0a0a0;
}

.products {
    padding: 100px 0;
}

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

.product-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(74, 144, 226, 0.5);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.2);
}

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

.product-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
}

.product-desc {
    font-size: 14px;
    color: #a0a0a0;
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-features {
    list-style: none;
}

.product-features li {
    font-size: 14px;
    margin-bottom: 8px;
    color: #e0e0e0;
}

.news {
    padding: 100px 0;
    background: rgba(74, 144, 226, 0.05);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: rgba(74, 144, 226, 0.5);
}

.news-card.featured {
    grid-column: span 2;
    display: flex;
}

.news-image {
    width: 200px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.2), rgba(0, 212, 255, 0.2));
}

.news-card.featured .news-image {
    width: 250px;
    height: 100%;
}

.news-emoji {
    font-size: 64px;
}

.news-card.featured .news-emoji {
    font-size: 80px;
}

.news-content {
    padding: 20px;
    flex: 1;
}

.news-tag {
    display: inline-block;
    background: rgba(74, 144, 226, 0.2);
    color: #4a90e2;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 12px;
    margin-bottom: 10px;
}

.news-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card.featured .news-title {
    font-size: 24px;
}

.news-desc {
    font-size: 14px;
    color: #a0a0a0;
    margin-bottom: 15px;
    line-height: 1.6;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #666;
}

.news-list {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.news-list-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.news-list-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.news-list-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: rgba(74, 144, 226, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.news-list-item:hover {
    background: rgba(74, 144, 226, 0.1);
}

.news-dot {
    color: #4a90e2;
    font-size: 18px;
}

.news-text {
    flex: 1;
    font-size: 15px;
    color: #e0e0e0;
}

.news-time-small {
    font-size: 13px;
    color: #666;
}

.contact {
    padding: 100px 0;
}

.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    font-size: 32px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(74, 144, 226, 0.1);
    border-radius: 15px;
}

.contact-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.contact-value {
    font-size: 16px;
    color: #e0e0e0;
}

.contact-form {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(74, 144, 226, 0.2);
}

.form-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: #a0a0a0;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(74, 144, 226, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 10px rgba(74, 144, 226, 0.3);
}

.form-group input::placeholder, .form-group textarea::placeholder {
    color: #666;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.4);
}

.about {
    padding: 100px 0;
    background: rgba(74, 144, 226, 0.05);
}

.about-content {
    display: flex;
    gap: 60px;
    margin-bottom: 50px;
}

.about-left, .about-right {
    flex: 1;
}

.about-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
}

.about-text {
    font-size: 16px;
    color: #a0a0a0;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: 15px;
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(90deg, #4a90e2, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: #a0a0a0;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.timeline-item {
    display: flex;
    gap: 20px;
}

.timeline-year {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4a90e2, #00d4ff);
    border-radius: 15px;
    font-size: 16px;
    font-weight: bold;
    flex-shrink: 0;
}

.timeline-content {
    flex: 1;
    padding: 15px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: 15px;
    border-left: 3px solid #4a90e2;
}

.timeline-content h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.timeline-content p {
    font-size: 14px;
    color: #a0a0a0;
}

.about-features {
    margin-top: 50px;
}

.about-features-title {
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
}

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

.feature-card {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(74, 144, 226, 0.2);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(74, 144, 226, 0.5);
}

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

.feature-card-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.feature-card-desc {
    font-size: 14px;
    color: #a0a0a0;
    line-height: 1.6;
}

.footer {
    background: rgba(15, 15, 35, 0.95);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(74, 144, 226, 0.2);
}

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

.footer-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #a0a0a0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4a90e2;
}

.download-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.badge-android, .badge-ios {
    display: inline-block;
    padding: 12px 20px;
    background: rgba(74, 144, 226, 0.1);
    border: 1px solid rgba(74, 144, 226, 0.3);
    border-radius: 10px;
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.badge-android:hover, .badge-ios:hover {
    background: rgba(74, 144, 226, 0.2);
}

.footer-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.social-link {
    color: #a0a0a0;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: #4a90e2;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    font-size: 14px;
    color: #666;
}

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

.footer-links-bottom a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links-bottom a:hover {
    color: #4a90e2;
}

@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-card.featured {
        grid-column: span 2;
        flex-direction: column;
    }
    
    .news-card.featured .news-image {
        width: 100%;
        height: 200px;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav ul {
        gap: 15px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 22px;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        height: auto;
        padding: 15px;
    }
    
    .nav ul {
        flex-direction: column;
        text-align: center;
        margin: 15px 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-card.featured {
        grid-column: span 1;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}