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

html {
    scroll-behavior: smooth;
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(99, 102, 241, 0.3);
}

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

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

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 22px;
    font-weight: bold;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #6366f1;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
}

.download-btn a {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    color: #fff;
    padding: 10px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.download-btn a:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
}

.hero {
    padding: 150px 0 100px;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
}

.hero-content {
    text-align: center;
    margin-bottom: 80px;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 20px;
    color: #94a3b8;
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(99, 102, 241, 0.1);
    padding: 15px 25px;
    border-radius: 30px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

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

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

.btn-primary {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    color: #fff;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: #6366f1;
    padding: 15px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: 2px solid #6366f1;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
}

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

.stat {
    background: rgba(99, 102, 241, 0.1);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.stat-value {
    font-size: 36px;
    font-weight: bold;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    color: #94a3b8;
    font-size: 14px;
}

section {
    padding: 80px 0;
}

h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 20px;
}

.section-desc {
    text-align: center;
    color: #94a3b8;
    font-size: 16px;
    margin-bottom: 50px;
}

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

.product-card {
    background: rgba(99, 102, 241, 0.1);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
}

.product-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #fff;
}

.product-card p {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-card ul {
    list-style: none;
}

.product-card li {
    padding: 8px 0;
    color: #cbd5e1;
    font-size: 14px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

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

.news-card {
    display: flex;
    gap: 20px;
    background: rgba(99, 102, 241, 0.1);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateX(5px);
    border-color: rgba(99, 102, 241, 0.4);
}

.news-image {
    font-size: 45px;
    flex-shrink: 0;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #fff;
    line-height: 1.4;
}

.news-content p {
    color: #94a3b8;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: #64748b;
}

.news-tag {
    background: rgba(99, 102, 241, 0.2);
    padding: 3px 10px;
    border-radius: 10px;
    color: #a5b4fc;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.feature-box {
    display: flex;
    gap: 25px;
    background: rgba(99, 102, 241, 0.1);
    padding: 35px;
    border-radius: 20px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    align-items: center;
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateX(10px);
    border-color: rgba(99, 102, 241, 0.4);
}

.feature-number {
    font-size: 48px;
    font-weight: bold;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
}

.feature-info h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #fff;
}

.feature-info p {
    color: #94a3b8;
    line-height: 1.8;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

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

.contact-icon {
    font-size: 28px;
    background: rgba(99, 102, 241, 0.2);
    padding: 12px;
    border-radius: 12px;
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: #fff;
}

.contact-item p {
    color: #94a3b8;
}

.contact-form {
    background: rgba(99, 102, 241, 0.1);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

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

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.2);
    color: #fff;
    font-size: 14px;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.contact-form textarea {
    height: 120px;
    resize: none;
}

.contact-form button {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    color: #fff;
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
}

.about-text h3 {
    font-size: 26px;
    margin-bottom: 25px;
    color: #fff;
}

.about-text p {
    color: #94a3b8;
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 15px;
}

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

.about-stat {
    background: rgba(99, 102, 241, 0.1);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    align-items: center;
    gap: 15px;
}

.about-icon {
    font-size: 35px;
}

.about-stat-value {
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-stat-label {
    color: #94a3b8;
    font-size: 13px;
}

.download-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

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

.download-btn-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(99, 102, 241, 0.1);
    padding: 25px 40px;
    border-radius: 15px;
    border: 1px solid rgba(99, 102, 241, 0.3);
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 280px;
}

.download-btn-item:hover {
    transform: translateY(-3px);
    border-color: #6366f1;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.download-icon {
    font-size: 45px;
}

.download-title {
    color: #fff;
    font-weight: 600;
    font-size: 18px;
}

.download-desc {
    color: #94a3b8;
    font-size: 14px;
}

.download-qrcode {
    display: flex;
    justify-content: center;
}

.qrcode-box {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.qrcode-icon {
    font-size: 80px;
}

.qrcode-text {
    color: #1a1a2e;
    font-weight: 600;
    margin-top: 10px;
}

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

.download-feature {
    color: #94a3b8;
    font-size: 15px;
}

footer {
    background: rgba(99, 102, 241, 0.05);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 60px 0 30px;
}

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

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

.footer-section p {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 20px;
}

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

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

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #6366f1;
}

.footer-icons {
    display: flex;
    gap: 15px;
}

.footer-icons span {
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.footer-icons span:hover {
    transform: translateY(-3px);
}

.footer-qrcode span {
    font-size: 50px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    color: #64748b;
    font-size: 13px;
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-features {
        gap: 15px;
    }
    
    .feature {
        padding: 10px 15px;
        font-size: 14px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-box {
        flex-direction: column;
        text-align: center;
    }
    
    .download-content {
        gap: 30px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}