:root {
    --bg: #0a0a12;
    --surface: #12121e;
    --surface-light: #1a1a2e;
    --cyber-purple: #9d4edd;
    --cyber-pink: #ff006e;
    --cyber-cyan: #00f5d4;
    --cyber-blue: #4361ee;
    --neon-pink: #ff2a6d;
    --neon-cyan: #05ffa1;
    --text: #c8cad0;
    --text-dim: #5a5c66;
    --glow-purple: rgba(157, 78, 221, 0.5);
    --glow-pink: rgba(255, 0, 110, 0.5);
    --glow-cyan: rgba(0, 245, 212, 0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

.rain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.raindrop {
    position: absolute;
    top: -20px;
    width: 1px;
    height: 15px;
    background: linear-gradient(to bottom, transparent, rgba(0, 245, 212, 0.3));
    animation: fall linear infinite;
}

@keyframes fall {
    to { transform: translateY(105vh); }
}

.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
}

.cyber-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    background: rgba(10, 10, 18, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--surface-light);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 800;
    color: var(--cyber-cyan);
    text-shadow: 0 0 8px var(--glow-cyan);
}

.nav-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: 1px solid var(--cyber-cyan);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--cyber-pink);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: text-shadow 0.3s;
}

.nav-links a:hover {
    text-shadow: 0 0 10px var(--glow-pink);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 2rem;
    overflow: hidden;
}

.city-skyline {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background:
        linear-gradient(to top, var(--bg), transparent),
        linear-gradient(to top, rgba(157, 78, 221, 0.1), transparent 60%);
    clip-path: polygon(0% 80%, 3% 60%, 5% 65%, 8% 40%, 10% 45%, 12% 30%, 14% 35%, 16% 50%, 18% 45%, 20% 25%, 22% 30%, 25% 55%, 28% 50%, 30% 35%, 32% 40%, 35% 20%, 37% 25%, 40% 45%, 42% 40%, 45% 55%, 48% 50%, 50% 30%, 52% 35%, 55% 15%, 57% 20%, 60% 40%, 62% 35%, 65% 50%, 68% 45%, 70% 60%, 72% 55%, 75% 35%, 78% 40%, 80% 25%, 82% 30%, 85% 50%, 88% 45%, 90% 60%, 92% 55%, 95% 70%, 97% 65%, 100% 75%, 100% 100%, 0% 100%);
}

.hero-content {
    position: relative;
    z-index: 5;
}

.cyber-badge {
    display: inline-block;
    padding: 0.4rem 1.5rem;
    border: 1px solid var(--cyber-pink);
    color: var(--cyber-pink);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 3px;
    margin-bottom: 2rem;
    text-shadow: 0 0 5px var(--glow-pink);
}

.hero-icon {
    width: 90px;
    height: 90px;
    border-radius: 16px;
    border: 2px solid var(--cyber-purple);
    box-shadow: 0 0 30px var(--glow-purple);
    margin-bottom: 2rem;
}

.glitch {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: var(--cyber-cyan);
    position: relative;
    text-shadow: 0 0 10px var(--glow-cyan);
    margin-bottom: 1.5rem;
    animation: glitchText 5s infinite;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    color: var(--cyber-pink);
    animation: glitch1 3s infinite;
    clip-path: inset(20% 0 60% 0);
}

.glitch::after {
    color: var(--cyber-purple);
    animation: glitch2 3s infinite;
    clip-path: inset(60% 0 10% 0);
}

@keyframes glitch1 {
    0%, 95% { transform: translate(0); }
    96% { transform: translate(-3px, 1px); }
    97% { transform: translate(3px, -1px); }
    98% { transform: translate(-2px, 2px); }
    99% { transform: translate(2px, -2px); }
}

@keyframes glitch2 {
    0%, 93% { transform: translate(0); }
    94% { transform: translate(3px, -1px); }
    95% { transform: translate(-3px, 1px); }
    96% { transform: translate(2px, 2px); }
    97% { transform: translate(-2px, -1px); }
}

@keyframes glitchText {
    0%, 92%, 100% { opacity: 1; }
    93% { opacity: 0.8; }
    94% { opacity: 1; }
    95% { opacity: 0.6; }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text);
    max-width: 550px;
    margin: 0 auto 2rem;
}

.btn-google-play {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--cyber-purple), var(--cyber-pink));
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: box-shadow 0.3s, transform 0.3s;
    clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
    padding-left: 2.5rem;
}

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

.btn-google-play small { display: block; font-size: 0.6rem; letter-spacing: 2px; opacity: 0.8; }
.btn-google-play strong { display: block; font-size: 1rem; }

.neon-signs {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.neon-ja, .neon-zh {
    font-size: 1.5rem;
    animation: neonPulse 2s infinite alternate;
}

.neon-ja {
    color: var(--neon-pink);
    text-shadow: 0 0 10px var(--glow-pink), 0 0 30px var(--glow-pink);
}

.neon-zh {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--glow-cyan), 0 0 30px var(--glow-cyan);
    animation-delay: 1s;
}

@keyframes neonPulse {
    from { opacity: 0.8; }
    to { opacity: 1; }
}

.cyber-divider {
    text-align: center;
    padding: 2rem;
    color: var(--text-dim);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 4px;
}

.about-section { padding: 2rem 2rem 4rem; }

.about-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--cyber-cyan);
    margin-bottom: 2rem;
    text-align: center;
    text-shadow: 0 0 8px var(--glow-cyan);
}

.blink { animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0; } }

.about-text h2 { text-align: left; }
.about-text p { margin-bottom: 1rem; color: var(--text); }

.about-stats { display: flex; flex-direction: column; gap: 1.5rem; }

.stat {
    text-align: center;
    padding: 1rem;
    border: 1px solid var(--surface-light);
    border-radius: 4px;
    background: var(--surface);
}

.stat-num {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--cyber-pink);
    text-shadow: 0 0 8px var(--glow-pink);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.screenshots-section { padding: 4rem 2rem; }

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.cyber-card {
    background: var(--surface);
    border: 1px solid var(--surface-light);
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.cyber-card:hover {
    border-color: var(--cyber-purple);
    box-shadow: 0 0 20px rgba(157, 78, 221, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-family: 'Orbitron', sans-serif;
    border-bottom: 1px solid var(--surface-light);
}

.card-tag { color: var(--text-dim); }
.card-status { color: var(--cyber-cyan); font-size: 0.7rem; }

.screenshot-card img { width: 100%; display: block; }

.features-section { padding: 4rem 2rem; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.feature-card {
    padding: 2rem;
}

.feature-hex {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--cyber-purple);
    text-shadow: 0 0 8px var(--glow-purple);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    color: var(--cyber-cyan);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

.feature-card p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 1rem; }

.feature-bar {
    height: 3px;
    background: var(--surface-light);
    border-radius: 2px;
    overflow: hidden;
}

.feature-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--cyber-purple), var(--cyber-pink));
    box-shadow: 0 0 6px var(--glow-pink);
    border-radius: 2px;
}

.faq-section { padding: 4rem 2rem; }

.faq-terminal {
    max-width: 700px;
    margin: 0 auto;
    border: 1px solid var(--surface-light);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--surface-light);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    margin-left: 0.5rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--text-dim);
}

.terminal-body { padding: 1rem; }

.faq-item { border-bottom: 1px solid var(--surface-light); }
.faq-item:last-child { border-bottom: none; }

.faq-q {
    width: 100%;
    padding: 1rem 0;
    background: none;
    border: none;
    color: var(--text);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.05rem;
    cursor: pointer;
    text-align: left;
    display: flex;
    gap: 0.5rem;
}

.prompt { color: var(--cyber-cyan); font-weight: 700; }

.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s; }
.faq-item.open .faq-a { max-height: 150px; }

.faq-a p {
    padding: 0 0 1rem 1.5rem;
    color: var(--text-dim);
}

.faq-a a {
    color: var(--cyber-cyan);
    text-decoration: none;
}

.cyber-footer {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--surface-light);
}

.footer-icon {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    margin-bottom: 1rem;
    border: 1px solid var(--cyber-purple);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.footer-links a:hover { color: var(--cyber-cyan); }

.footer-copy {
    color: var(--text-dim);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 1px;
}

.fade-in {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.6s, transform 0.6s;
}

.fade-in.shown {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .glitch { font-size: 2.2rem; }
    .about-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 1.5rem; }
    .about-stats { flex-direction: row; }
}