/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.highlight {
    color: #0052d9; /* Tencent Blue */
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #0052d9;
    color: #fff;
    border: 1px solid #0052d9;
}

.btn-primary:hover {
    background-color: #0040a8;
}

.btn-outline {
    background-color: transparent;
    color: #0052d9;
    border: 1px solid #0052d9;
}

.btn-outline:hover {
    background-color: #f2f7ff;
}

.btn-white {
    background-color: #fff;
    color: #333;
    border: 1px solid #fff;
}

.btn-white:hover {
    background-color: #f5f5f5;
}

.btn-outline-white {
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
}

.btn-outline-white:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Header */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 36px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.nav-menu a:hover, .nav-menu a.active {
    color: #0052d9;
}

.btn-download-nav {
    background-color: #0052d9;
    color: #fff !important;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px !important;
}

.btn-download-nav:hover {
    background-color: #0040a8;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background-color: #f8f9fb;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #111;
}

.hero-content p {
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
}

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

.hero-image {
    flex: 1;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #111;
}

.features-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.features-content {
    flex: 1;
}

.features-content h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #111;
}

.features-content ul {
    margin-bottom: 40px;
}

.features-content li {
    font-size: 18px;
    color: #666;
    margin-bottom: 15px;
    position: relative;
    padding-left: 20px;
}

.features-content li::before {
    content: "•";
    color: #0052d9;
    position: absolute;
    left: 0;
    font-size: 20px;
}

.highlight-text {
    color: #0052d9 !important;
    font-weight: bold;
}

.features-actions {
    display: flex;
    gap: 20px;
}

.features-image {
    flex: 1;
}

.features-image img {
    max-width: 100%;
    height: auto;
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: #f8f9fb;
}

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

.service-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card img {
    width: 36px;
    height: 36px;
}

.service-info h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #111;
}

.service-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* Partners Section */
.partners {
    padding: 80px 0;
    text-align: center;
}

.partners-image img {
    max-width: 100%;
    margin-top: 40px;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #0052d9, #0040a8);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.cta h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.footer {
    background-color: #1a1a1a;
    color: #999;
    padding: 60px 0 40px;
    text-align: center;
}

.footer-links {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: #ccc;
    font-size: 15px;
}

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

.copyright p {
    margin-bottom: 10px;
    font-size: 14px;
}

.copyright a {
    color: #999;
}

.copyright a:hover {
    color: #fff;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-inner, .features-inner {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-image, .features-image {
        text-align: center;
    }
    
    .hero-actions, .features-actions {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-actions {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Simplified for mobile */
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}