:root {
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.5);
    --secondary: #06b6d4;
    --bg: #030712;
    --card-bg: rgba(17, 24, 39, 0.7);
    --text: #f9fafb;
    --text-muted: #9ca3af;
    --border: rgba(255, 255, 255, 0.1);
    --glass: rgba(255, 255, 255, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Gradients */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15), transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.15), transparent 40%);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--text);
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(to bottom, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--primary-glow);
}

.btn-outline {
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--glass);
}

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

/* Features Section */
.features {
    padding: 6rem 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 24px;
    transition: transform 0.3s, border-color 0.3s;
    backdrop-filter: blur(5px);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--glass);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer & ICP */
footer {
    padding: 6rem 0 3rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.icp-info {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.icp-info a {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 10px;
}

.icp-info a:hover {
    color: var(--text);
}

.beian-icon {
    vertical-align: middle;
    width: 18px;
    margin-right: 4px;
}

/* Responsive */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .cta-group {
        flex-direction: column;
    }
    
    header nav {
        display: none;
    }
}