body {
    margin: 0;
    font-family: "Microsoft YaHei", Arial, sans-serif;
    background: #f7f9fb;
    color: #222;
}

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

.navbar {
    background: #fff;
    border-bottom: 1px solid #e6e6e6;
    padding: 0 0 0 0;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    color: #1976d2;
    display: inline-block;
    padding: 20px 0;
}

.nav-links {
    display: inline-block;
    margin-left: 40px;
}

.nav-links a {
    color: #222;
    text-decoration: none;
    margin: 0 32px;
    font-size: 1rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #1976d2;
}

.nav-actions {
    float: right;
    padding: 20px 0;
}

.login {
    color: #1976d2;
    text-decoration: none;
    border: 1px solid #1976d2;
    border-radius: 4px;
    padding: 6px 18px;
    margin-left: 20px;
    transition: background 0.2s, color 0.2s;
}

.login:hover {
    background: #1976d2;
    color: #fff;
}

.hero {
    background: linear-gradient(120deg, #e3f0ff 0%, #f7f9fb 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0 40px 0;
    text-align: center;
}

.hero-content {
    flex: none;
    padding: 0 0 32px 0;
}

.hero-content h1 {
    font-size: 2.2rem;
    color: #1976d2;
    margin-bottom: 24px;
}

.hero-btn {
    display: inline-block;
    background: #1976d2;
    color: #fff;
    padding: 12px 32px;
    border-radius: 24px;
    text-decoration: none;
    font-size: 1.1rem;
    transition: background 0.2s;
}

.hero-btn:hover {
    background: #1256a3;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(25, 118, 210, 0.08);
}

.features {
    background: #fff;
    padding: 32px 0;
    text-align: center;
}

.features button {
    background: #1976d2;
    color: #fff;
    border: none;
    border-radius: 20px;
    padding: 12px 36px;
    margin: 0 16px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.features button:hover {
    background: #1256a3;
}

.about {
    background: #f7f9fb;
    padding: 48px 0 32px 0;
    text-align: center;
}

.about h2 {
    font-size: 2rem;
    color: #1976d2;
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 32px;
}

.about-stats div {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.06);
    padding: 24px 32px;
    font-size: 1.1rem;
    color: #1976d2;
    min-width: 120px;
}

.core-products, .industry-applications, .clients, .news {
    background: #fff;
    margin: 32px 0;
    padding: 40px 0;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.06);
}

.core-products h2, .industry-applications h2, .clients h2, .news h2 {
    color: #1976d2;
    text-align: center;
    margin-bottom: 32px;
}

.product-list, .industry-list {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.product-item, .industry-item {
    background: #f7f9fb;
    border-radius: 10px;
    padding: 32px 40px;
    font-size: 1.1rem;
    color: #1976d2;
    box-shadow: 0 1px 4px rgba(25, 118, 210, 0.04);
    min-width: 160px;
    text-align: center;
}

.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
    margin-top: 24px;
}

.client-logos img {
    width: 120px;
    height: 48px;
    object-fit: contain;
    background: #f7f9fb;
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 1px 4px rgba(25, 118, 210, 0.04);
}

.news-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
}

.news-item {
    background: #f7f9fb;
    border-radius: 8px;
    padding: 20px 32px;
    color: #1976d2;
    font-size: 1rem;
    min-width: 220px;
    box-shadow: 0 1px 4px rgba(25, 118, 210, 0.04);
}

.footer {
    background: #fff;
    border-top: 1px solid #e6e6e6;
    padding: 32px 0;
    margin-top: 40px;
}

.footer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0;
}

.footer-info > * {
    flex: 1;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    color: #1976d2;
    font-weight: bold;
}

.footer-info a {
    color: #1976d2;
    text-decoration: none;
    font-size: 1rem;
}

.footer-info a:hover {
    text-decoration: underline;
}

.footer-qr img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin-left: 40px;
    background: #f7f9fb;
    padding: 8px;
}

@media (max-width: 900px) {
    .container { padding: 0 8px; }
    .about-stats, .product-list, .industry-list, .client-logos, .news-list, .footer-info {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    .hero { flex-direction: column; text-align: center; }
    .hero-content { padding-right: 0; }
    .footer-qr img { margin-left: 0; margin-top: 20px; }
    .hero-image img {
        width: 100%;
    }
}