:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --secondary-color: #10B981;
    --bg-color: #F9FAFB;
    --text-main: #111827;
    --text-muted: #6B7280;
    --card-bg: #FFFFFF;
    --gradient-hero: linear-gradient(135deg, #4F46E5 0%, #8B5CF6 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

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

body {
    font-family: 'Outfit', 'Noto Sans SC', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Header & Nav */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-cn {
    color: var(--text-main);
    font-weight: 500;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 90vh;
}

.hero-content {
    flex: 1;
    padding-right: 4rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.highlight {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn-primary.large {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

.btn-secondary.large {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    border: 1px solid #E5E7EB;
    border-radius: 9999px;
    font-weight: 600;
}

.btn-secondary:hover {
    background-color: #F3F4F6;
}

.hero-visual {
    flex: 1;
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-bg {
    width: 350px;
    height: 350px;
    background: var(--gradient-hero);
    border-radius: 50%;
    opacity: 0.1;
    position: absolute;
    filter: blur(40px);
    z-index: -1;
}

.floating-card {
    background: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    position: absolute;
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    right: 10%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 20%;
    left: 10%;
    animation-delay: 3s;
}

.floating-card .icon {
    font-size: 2rem;
}

.floating-card .text {
    font-weight: 700;
    font-size: 1.1rem;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Services */
.services {
    padding: 4rem 2rem;
    background-color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.service-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-color);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.service-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    border-color: #E5E7EB;
    transform: translateY(-5px);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
}

/* Footer */
.footer {
    background-color: #1F2937;
    color: #F9FAFB;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
}

.footer-brand h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #9CA3AF;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.link-group h5 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: white;
}

.link-group a {
    display: block;
    color: #9CA3AF;
    margin-bottom: 0.8rem;
}

.link-group a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid #374151;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    color: #9CA3AF;
    font-size: 0.9rem;
}

.icp-info a {
    color: #9CA3AF;
}

.icp-info a:hover {
    color: white;
}

.company-info {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    text-align: center;
    color: #9CA3AF;
    font-size: 0.9rem;
}

.company-info p {
    margin: 0.5rem 0;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 4rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-cta {
        justify-content: center;
    }

    .nav-links {
        display: none; /* Simple hiding for mvp, normally would do burger menu */
    }
    
    .footer-content {
        flex-direction: column;
        gap: 3rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}