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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    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);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    font-size: 32px;
    color: #f7931a;
    font-weight: bold;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

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

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    background: radial-gradient(circle at 50% 50%, rgba(247, 147, 26, 0.1) 0%, transparent 70%);
}

.hero-content {
    max-width: 900px;
}

.hero-content h1 {
    font-size: 48px;
    color: #fff;
    margin-bottom: 20px;
    text-shadow: 0 0 30px rgba(247, 147, 26, 0.5);
}

.hero-subtitle {
    font-size: 24px;
    color: #f7931a;
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-desc {
    font-size: 18px;
    color: #ccc;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
}

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

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: bold;
    color: #f7931a;
    text-shadow: 0 0 20px rgba(247, 147, 26, 0.5);
}

.stat-label {
    display: block;
    font-size: 16px;
    color: #ccc;
    margin-top: 10px;
}

.section-title {
    font-size: 36px;
    color: #fff;
    text-align: center;
    margin-bottom: 50px;
    text-shadow: 0 0 20px rgba(247, 147, 26, 0.3);
}

.products-section {
    padding: 100px 20px;
    background: rgba(255, 255, 255, 0.05);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(247, 147, 26, 0.3);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: #f7931a;
    box-shadow: 0 10px 40px rgba(247, 147, 26, 0.3);
}

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

.product-card h3 {
    font-size: 24px;
    color: #f7931a;
    margin-bottom: 15px;
}

.product-card p {
    color: #ccc;
    margin-bottom: 20px;
    line-height: 1.8;
}

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

.product-features li {
    color: #aaa;
    padding: 5px 0;
}

.news-section {
    padding: 100px 20px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(247, 147, 26, 0.3);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: #f7931a;
}

.news-date {
    color: #888;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-card h3 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-card p {
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-tag {
    display: inline-block;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    color: #fff;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 14px;
}

.contact-section {
    padding: 100px 20px;
    background: rgba(255, 255, 255, 0.05);
}

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

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(247, 147, 26, 0.3);
}

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

.contact-details h4 {
    color: #f7931a;
    margin-bottom: 5px;
}

.contact-details p {
    color: #ccc;
}

.contact-form {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(247, 147, 26, 0.3);
}

.contact-form h3 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 10px;
}

.contact-form p {
    color: #aaa;
    margin-bottom: 30px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(247, 147, 26, 0.3);
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #888;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(90deg, #f7931a, #ffb347);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(247, 147, 26, 0.5);
}

.about-section {
    padding: 100px 20px;
}

.about-content {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: 50px;
    border-radius: 15px;
    border: 1px solid rgba(247, 147, 26, 0.3);
}

.about-text h3 {
    color: #f7931a;
    font-size: 28px;
    margin: 40px 0 20px;
}

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

.about-text p {
    color: #ccc;
    line-height: 2;
    margin-bottom: 15px;
}

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

.advantage-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(247, 147, 26, 0.2);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

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

.advantage-item p {
    color: #aaa;
    font-size: 14px;
}

.timeline {
    margin-top: 30px;
}

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(247, 147, 26, 0.2);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-date {
    min-width: 100px;
    color: #f7931a;
    font-weight: bold;
    font-size: 18px;
}

.timeline-content h4 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 20px;
}

.timeline-content p {
    color: #aaa;
}

.features-section {
    padding: 100px 20px;
    background: rgba(255, 255, 255, 0.05);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: 15px;
    border: 1px solid rgba(247, 147, 26, 0.3);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    border-color: #f7931a;
    box-shadow: 0 10px 40px rgba(247, 147, 26, 0.3);
}

.feature-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.feature-item h3 {
    color: #f7931a;
    margin-bottom: 15px;
    font-size: 24px;
}

.feature-item p {
    color: #aaa;
    line-height: 1.8;
}

.faq-section {
    padding: 100px 20px;
}

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

.faq-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    border: 1px solid rgba(247, 147, 26, 0.3);
}

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

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

.footer {
    background: rgba(10, 10, 30, 0.95);
    padding: 60px 20px 30px;
    border-top: 1px solid rgba(247, 147, 26, 0.3);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: #f7931a;
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-section p {
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 10px;
}

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

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

.footer-section ul li a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(247, 147, 26, 0.2);
}

.footer-bottom p {
    color: #888;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .nav-menu {
        flex-wrap: wrap;
        gap: 15px;
    }

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

    .hero-subtitle {
        font-size: 18px;
    }

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

    .stat-number {
        font-size: 32px;
    }

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

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

    .about-content {
        padding: 30px;
    }

    .timeline-item {
        flex-direction: column;
        gap: 15px;
    }
}