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

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #22d3ee;
    --accent: #f472b6;
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #1e293b;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
    --gradient-2: linear-gradient(135deg, #f472b6 0%, #6366f1 100%);
    --gradient-3: linear-gradient(135deg, #22d3ee 0%, #10b981 100%);
    --glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-icon {
    font-size: 2rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.logo-text {
    color: #ffffff;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 120px 24px 80px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.1s backwards;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.3s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

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

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--glow);
}

.card-1 {
    width: 280px;
    animation-delay: 0s;
    z-index: 3;
}

.card-2 {
    top: 20%;
    right: 10%;
    animation-delay: 1s;
    z-index: 2;
}

.card-3 {
    bottom: 15%;
    left: 5%;
    animation-delay: 2s;
    z-index: 1;
}

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

.card-header {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.card-content {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.875rem;
}

.terminal-line {
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.terminal-output {
    color: var(--secondary);
    margin-bottom: 4px;
}

.stats {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card.featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(34, 211, 238, 0.1) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    background: var(--gradient-1);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-icon {
    width: 60px;
    height: 60px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary-light);
}

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.product-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 12px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--primary-light);
}

.features {
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.03) 50%, transparent 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-item {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
    margin-bottom: 16px;
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.experience-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.experience-card:hover {
    border-color: var(--primary);
    transform: translateX(8px);
    box-shadow: var(--glow);
}

.exp-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.exp-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--primary-light);
}

.exp-info {
    flex: 1;
}

.exp-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.exp-info p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.exp-badge {
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.exp-badge.beta {
    background: rgba(244, 114, 182, 0.2);
    color: var(--accent);
}

.exp-badge.stable {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.github-section {
    background: linear-gradient(180deg, transparent 0%, rgba(34, 211, 238, 0.03) 50%, transparent 100%);
}

.github-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 400px;
    margin: 0 auto;
}

.github-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.github-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: var(--glow);
}

.github-icon {
    width: 48px;
    height: 48px;
    fill: var(--text-primary);
    margin-bottom: 20px;
}

.github-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.github-card p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.github-arrow {
    font-size: 1.5rem;
    color: var(--primary-light);
    transition: transform 0.3s ease;
}

.github-card:hover .github-arrow {
    transform: translateX(8px);
}

.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 12px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h5 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-qq {
    display: block;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 4px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 140px;
    }

    .hero-content {
        max-width: 100%;
    }

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

    .hero-visual {
        width: 100%;
        margin-top: 60px;
        min-height: 300px;
    }

    .floating-card.card-1 {
        position: relative;
        margin: 0 auto;
    }

    .card-2, .card-3 {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 16px 60px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .experience-grid {
        grid-template-columns: 1fr;
    }
}