/* ===== Reset & Variables - Cyberpunk Anime Style ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-deep: #070b18;
    --bg-dark: #0d1326;
    --bg-mid: #141c35;
    --bg-light: #1c2647;
    --neon-pink: #ff3d7f;
    --neon-pink-light: #ff7aa8;
    --neon-purple: #a855f7;
    --neon-purple-light: #c084fc;
    --neon-cyan: #00e5ff;
    --neon-cyan-light: #67e8f9;
    --neon-blue: #3b82f6;
    --neon-yellow: #fbbf24;
    --neon-green: #22d3ee;
    --text-primary: #eef2ff;
    --text-secondary: #a5b0cc;
    --text-muted: #64748b;
    --glass-bg: rgba(20, 28, 53, 0.7);
    --glass-border: rgba(168, 85, 247, 0.25);
    --shadow-pink: 0 0 30px rgba(255, 61, 127, 0.3);
    --shadow-purple: 0 0 40px rgba(168, 85, 247, 0.35);
    --shadow-cyan: 0 0 30px rgba(0, 229, 255, 0.25);
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== Cyberpunk Grid Background ===== */
.cyber-bg {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1;
    background:
        radial-gradient(ellipse at 15% 15%, rgba(255, 61, 127, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 85% 85%, rgba(0, 229, 255, 0.08) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 50%, rgba(168, 85, 247, 0.06) 0%, transparent 55%),
        linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 50%, var(--bg-deep) 100%);
}
.cyber-bg::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.scanlines {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 0, 0.08) 2px, rgba(0, 0, 0, 0.08) 4px);
    opacity: 0.4;
}

/* ===== Header ===== */
header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 0.9rem 2rem;
    background: rgba(7, 11, 24, 0.88);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}
header.scrolled { padding: 0.65rem 2rem; background: rgba(7, 11, 24, 0.96); box-shadow: 0 4px 30px rgba(0,0,0,0.6); }

nav { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--text-primary); }
.brand-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-purple) 100%);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; box-shadow: var(--shadow-pink);
    animation: pulse-glow 2.5s ease-in-out infinite;
    position: relative;
}
.brand-icon::after {
    content: ''; position: absolute; inset: -2px; border-radius: 12px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
    z-index: -1; filter: blur(8px); opacity: 0.5;
}
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 61, 127, 0.4); }
    50% { box-shadow: 0 0 35px rgba(255, 61, 127, 0.7); }
}
.brand-text {
    font-family: 'ZCOOL KuaiLe', 'Orbitron', sans-serif;
    font-size: 1.45rem; font-weight: 700;
    background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-purple-light) 50%, var(--neon-cyan) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    letter-spacing: 1px;
}

.nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; }
.nav-links a {
    color: var(--text-secondary); text-decoration: none; font-weight: 500; font-size: 0.92rem;
    position: relative; transition: var(--transition); padding: 0.4rem 0;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan)); transition: width 0.3s ease;
}
.nav-links a:hover { color: var(--neon-pink-light); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
    background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-purple) 100%);
    color: #fff !important; padding: 0.55rem 1.4rem !important; border-radius: 50px;
    font-weight: 700 !important; box-shadow: var(--shadow-pink); transition: var(--transition);
    position: relative; overflow: hidden;
}
.nav-cta::before {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent); transition: left 0.5s ease;
}
.nav-cta:hover::before { left: 100%; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 0 40px rgba(255, 61, 127, 0.55); }
.nav-cta::after { display: none !important; }

.mobile-menu-btn { display: none; background: none; border: none; color: var(--neon-pink); font-size: 1.6rem; cursor: pointer; padding: 0.4rem; }

/* ===== Hero ===== */
#hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 7rem 2rem 3rem; position: relative; overflow: hidden;
}
.hero-container { max-width: 1300px; margin: 0 auto; width: 100%; }

.hero-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 3rem; margin-bottom: 3rem; }
.hero-content { flex: 1; max-width: 650px; animation: fadeInUp 1s ease-out; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }

.hero-rating {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    padding: 0.4rem 1rem; border-radius: 50px; font-size: 0.82rem; color: var(--neon-pink-light);
    margin-bottom: 1.2rem; backdrop-filter: blur(10px);
}
.hero-rating .stars-inline { color: var(--neon-yellow); letter-spacing: 2px; }

.hero-title {
    font-family: 'ZCOOL KuaiLe', 'Orbitron', sans-serif;
    font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 900; line-height: 1.1; margin-bottom: 0.5rem;
}
.hero-title .main {
    background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-purple-light) 35%, var(--neon-cyan) 70%, var(--neon-pink) 100%);
    background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    animation: shine 3.5s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }
.hero-title .sub {
    display: block; font-size: clamp(0.9rem, 1.8vw, 1.3rem); font-family: 'Noto Sans SC', sans-serif;
    font-weight: 400; color: var(--neon-cyan-light); margin-top: 0.5rem; letter-spacing: 3px;
}

.hero-desc {
    font-size: 1.05rem; color: var(--text-secondary); margin: 1.5rem 0 2rem; line-height: 1.9; max-width: 560px;
}
.hero-desc strong { color: var(--neon-pink-light); font-weight: 600; }

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.9rem 2rem; border-radius: 50px; font-size: 0.98rem; font-weight: 700;
    text-decoration: none; cursor: pointer; border: none; transition: var(--transition);
    position: relative; overflow: hidden;
}
.btn-primary {
    background: linear-gradient(135deg, var(--neon-pink) 0%, var(--neon-purple) 100%);
    color: #fff; box-shadow: var(--shadow-pink);
}
.btn-primary::before {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.35), transparent); transition: left 0.5s ease;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 50px rgba(255, 61, 127, 0.55); }
.btn-secondary {
    background: var(--glass-bg); color: var(--text-primary); border: 1px solid var(--neon-cyan); backdrop-filter: blur(10px);
}
.btn-secondary:hover { background: rgba(0, 229, 255, 0.1); border-color: var(--neon-cyan); transform: translateY(-3px); box-shadow: var(--shadow-cyan); }

/* Hero Stats */
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; margin-bottom: 2rem; }
.stat-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    padding: 1.2rem 1rem; text-align: center; backdrop-filter: blur(10px); transition: var(--transition);
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan));
}
.stat-card:hover { border-color: var(--neon-pink); transform: translateY(-4px); box-shadow: var(--shadow-pink); }
.stat-number {
    font-family: 'Orbitron', sans-serif; font-size: 1.7rem; font-weight: 900;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 0.76rem; color: var(--text-muted); margin-top: 0.3rem; }

/* Hero Info Card */
.hero-info-card {
    flex-shrink: 0; width: 320px; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg); padding: 1.8rem; backdrop-filter: blur(15px);
    animation: fadeInRight 1s ease-out 0.3s both;
    position: relative; overflow: hidden;
}
.hero-info-card::before {
    content: ''; position: absolute; top: 0; right: 0; width: 80px; height: 80px;
    background: radial-gradient(circle, rgba(255, 61, 127, 0.15), transparent 70%);
}
@keyframes fadeInRight { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
.info-card-title {
    font-family: 'Orbitron', sans-serif; font-size: 0.85rem; color: var(--neon-cyan); margin-bottom: 1.2rem;
    padding-bottom: 0.8rem; border-bottom: 1px solid var(--glass-border); text-align: center; letter-spacing: 3px;
    text-transform: uppercase;
}
.info-row { display: flex; justify-content: space-between; align-items: center; padding: 0.6rem 0; border-bottom: 1px dashed rgba(168,85,247,0.15); font-size: 0.88rem; }
.info-row:last-child { border-bottom: none; }
.info-label { color: var(--text-muted); }
.info-value { color: var(--text-primary); font-weight: 500; }
.info-value .model-tag {
    display: inline-block; background: rgba(255, 61, 127, 0.15); color: var(--neon-pink-light);
    padding: 0.15rem 0.5rem; border-radius: 4px; font-size: 0.72rem; margin: 0 1px;
    border: 1px solid rgba(255, 61, 127, 0.2);
}

/* Hero Visual - Character Cards */
.hero-visual {
    display: flex; justify-content: center; align-items: center; margin-top: 2rem;
    perspective: 1200px;
}
.char-fan { position: relative; width: 520px; height: 300px; }
.char-card-fan {
    position: absolute; width: 150px; height: 240px; border-radius: 14px;
    background: linear-gradient(145deg, var(--bg-mid), var(--bg-dark));
    border: 2px solid var(--neon-purple); box-shadow: 0 10px 40px rgba(0,0,0,0.5), var(--shadow-purple);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    transition: var(--transition); cursor: pointer; overflow: hidden;
}
.char-card-fan::before {
    content: ''; position: absolute; inset: 5px; border: 1px solid rgba(168, 85, 247, 0.4); border-radius: 10px;
}
.char-card-fan .fan-emoji { font-size: 2.8rem; margin-bottom: 0.6rem; filter: drop-shadow(0 0 10px rgba(255,61,127,0.5)); }
.char-card-fan .fan-name { font-family: 'ZCOOL KuaiLe', sans-serif; font-size: 1.05rem; color: var(--neon-pink-light); letter-spacing: 1px; }
.char-card-fan .fan-role { font-size: 0.7rem; color: var(--neon-cyan-light); margin-top: 0.3rem; letter-spacing: 1px; }
.char-card-fan:nth-child(1) { left: 20px; top: 30px; transform: rotate(-16deg); z-index: 1; border-color: var(--neon-pink); }
.char-card-fan:nth-child(2) { left: 130px; top: 10px; transform: rotate(-7deg); z-index: 2; border-color: var(--neon-purple); }
.char-card-fan:nth-child(3) { left: 240px; top: 0; transform: rotate(0deg); z-index: 3; border-color: var(--neon-cyan); box-shadow: 0 10px 40px rgba(0,0,0,0.5), var(--shadow-cyan); }
.char-card-fan:nth-child(4) { left: 350px; top: 10px; transform: rotate(7deg); z-index: 2; border-color: var(--neon-purple); }
.char-card-fan:nth-child(5) { left: 460px; top: 30px; transform: rotate(16deg); z-index: 1; border-color: var(--neon-pink); }
.char-card-fan:hover { transform: translateY(-25px) rotate(0deg) scale(1.05) !important; z-index: 10 !important; }

/* ===== Section Common ===== */
section { padding: 5.5rem 2rem; position: relative; }
.section-container { max-width: 1300px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-tag {
    display: inline-block; padding: 0.35rem 1.1rem; background: var(--glass-bg);
    border: 1px solid var(--glass-border); border-radius: 50px; font-size: 0.75rem;
    color: var(--neon-cyan-light); margin-bottom: 1rem; letter-spacing: 3px; text-transform: uppercase;
    font-family: 'Orbitron', sans-serif;
}
.section-title {
    font-family: 'ZCOOL KuaiLe', 'Orbitron', sans-serif; font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 900; margin-bottom: 0.8rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--neon-pink-light) 60%, var(--neon-cyan) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    letter-spacing: 1px;
}
.section-desc { font-size: 1rem; color: var(--text-secondary); max-width: 680px; margin: 0 auto; line-height: 1.8; }

/* ===== About Section ===== */
#about { background: linear-gradient(180deg, transparent 0%, rgba(20, 28, 53, 0.4) 50%, transparent 100%); }
.about-content {
    max-width: 900px; margin: 0 auto; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg); padding: 3rem 2.5rem; backdrop-filter: blur(15px);
    position: relative; overflow: hidden;
}
.about-content::before {
    content: '🎮'; position: absolute; top: -30px; right: -10px; font-size: 12rem; color: rgba(255, 61, 127, 0.04);
    line-height: 1;
}
.about-content h3 {
    font-family: 'ZCOOL KuaiLe', sans-serif; font-size: 1.5rem; color: var(--neon-pink-light); margin-bottom: 1.2rem;
    letter-spacing: 1px; position: relative;
}
.about-content p { color: var(--text-secondary); font-size: 1rem; line-height: 2; margin-bottom: 1rem; position: relative; }
.about-content p:last-child { margin-bottom: 0; }
.about-content strong { color: var(--neon-cyan-light); }

/* ===== Features Section ===== */
#features { position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1.8rem; }
.feature-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
    padding: 2rem 1.8rem; backdrop-filter: blur(10px); transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-purple), var(--neon-cyan)); transform: scaleX(0);
    transform-origin: left; transition: transform 0.4s ease;
}
.feature-card:hover { transform: translateY(-8px); border-color: var(--neon-purple); box-shadow: var(--shadow-purple); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.feature-icon {
    width: 56px; height: 56px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; flex-shrink: 0;
}
.feature-icon.pink { background: linear-gradient(135deg, rgba(255,61,127,0.2), rgba(255,61,127,0.05)); border: 1px solid rgba(255,61,127,0.35); }
.feature-icon.purple { background: linear-gradient(135deg, rgba(168,85,247,0.2), rgba(168,85,247,0.05)); border: 1px solid rgba(168,85,247,0.35); }
.feature-icon.cyan { background: linear-gradient(135deg, rgba(0,229,255,0.2), rgba(0,229,255,0.05)); border: 1px solid rgba(0,229,255,0.35); }
.feature-icon.yellow { background: linear-gradient(135deg, rgba(251,191,36,0.2), rgba(251,191,36,0.05)); border: 1px solid rgba(251,191,36,0.35); }
.feature-icon.blue { background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(59,130,246,0.05)); border: 1px solid rgba(59,130,246,0.35); }
.feature-icon.green { background: linear-gradient(135deg, rgba(34,211,238,0.2), rgba(34,211,238,0.05)); border: 1px solid rgba(34,211,238,0.35); }
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-primary); }
.feature-card .feature-sub { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.2rem; }
.feature-card ul { list-style: none; margin-top: 1rem; }
.feature-card li {
    display: flex; align-items: flex-start; gap: 0.6rem; margin-bottom: 0.6rem; color: var(--text-secondary);
    font-size: 0.88rem; line-height: 1.6;
}
.feature-card li::before { content: '▸'; color: var(--neon-pink); font-size: 0.9rem; flex-shrink: 0; margin-top: 2px; font-weight: 700; }

/* ===== Characters Section ===== */
#characters { background: linear-gradient(180deg, transparent 0%, rgba(20, 28, 53, 0.4) 50%, transparent 100%); }
.characters-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.8rem; }
.character-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
    overflow: hidden; backdrop-filter: blur(10px); transition: var(--transition); cursor: pointer;
}
.character-card:hover { transform: translateY(-8px); border-color: var(--neon-pink); box-shadow: var(--shadow-pink); }
.char-image { position: relative; height: 200px; overflow: hidden; }
.char-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s ease; }
.character-card:hover .char-image img { transform: scale(1.08); }
.char-image::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 40%, var(--bg-dark) 100%);
}
.char-model-badge {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: rgba(7, 11, 24, 0.85); border: 1px solid var(--neon-cyan);
    padding: 0.25rem 0.7rem; border-radius: 50px; font-size: 0.72rem; color: var(--neon-cyan-light);
    backdrop-filter: blur(5px); font-family: 'Orbitron', sans-serif; letter-spacing: 1px;
}
.char-body { padding: 1.3rem 1.5rem 1.5rem; }
.char-name { font-family: 'ZCOOL KuaiLe', sans-serif; font-size: 1.3rem; color: var(--neon-pink-light); margin-bottom: 0.3rem; letter-spacing: 1px; }
.char-tags { display: flex; gap: 0.5rem; margin-bottom: 0.8rem; flex-wrap: wrap; }
.char-tag {
    background: rgba(168, 85, 247, 0.15); color: var(--neon-purple-light); padding: 0.2rem 0.6rem;
    border-radius: 4px; font-size: 0.75rem; border: 1px solid rgba(168,85,247,0.2);
}
.char-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.char-rating { display: flex; align-items: center; gap: 0.3rem; color: var(--neon-yellow); font-size: 0.88rem; font-weight: 700; }
.char-rating .star-icon { font-size: 0.8rem; }
.char-count { color: var(--text-muted); font-size: 0.82rem; }
.char-desc { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 1rem; line-height: 1.6; }
.char-btn {
    display: block; width: 100%; text-align: center; padding: 0.65rem; border-radius: 8px;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple)); color: #fff;
    font-weight: 700; font-size: 0.9rem; text-decoration: none; transition: var(--transition);
}
.char-btn:hover { box-shadow: var(--shadow-pink); transform: scale(1.02); }

/* ===== Immersive Chat ===== */
#divination { position: relative; }
.chat-wrapper {
    max-width: 800px; margin: 0 auto; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg); overflow: hidden; backdrop-filter: blur(15px);
    box-shadow: var(--shadow-purple);
}
.chat-header {
    display: flex; align-items: center; gap: 1rem; padding: 1.2rem 1.8rem;
    background: rgba(7, 11, 24, 0.6); border-bottom: 1px solid var(--glass-border);
}
.chat-avatar-lg {
    width: 48px; height: 48px; border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
    box-shadow: var(--shadow-pink);
}
.chat-info { flex: 1; }
.chat-name { font-family: 'ZCOOL KuaiLe', sans-serif; font-size: 1.15rem; color: var(--neon-pink-light); letter-spacing: 1px; }
.chat-status { font-size: 0.78rem; color: var(--neon-cyan-light); display: flex; align-items: center; gap: 0.4rem; }
.chat-status .online-dot { width: 7px; height: 7px; background: #22d3ee; border-radius: 50%; animation: blink 1.5s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.chat-url {
    font-family: 'Orbitron', monospace; font-size: 0.72rem; color: var(--text-muted);
    background: rgba(0,0,0,0.3); padding: 0.3rem 0.8rem; border-radius: 4px;
}

.chat-body { padding: 1.8rem; min-height: 320px; }
.chat-msg { display: flex; gap: 0.8rem; margin-bottom: 1.2rem; animation: msgIn 0.5s ease-out; }
@keyframes msgIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.chat-msg.ai { flex-direction: row; }
.chat-msg.user { flex-direction: row-reverse; }
.chat-avatar-sm {
    width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: 1rem;
}
.chat-msg.ai .chat-avatar-sm { background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple)); }
.chat-msg.user .chat-avatar-sm { background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue)); }
.chat-bubble {
    max-width: 75%; padding: 0.8rem 1.2rem; border-radius: 14px; font-size: 0.92rem; line-height: 1.7;
}
.chat-msg.ai .chat-bubble {
    background: rgba(168, 85, 247, 0.12); border: 1px solid rgba(168, 85, 247, 0.25);
    color: var(--text-primary); border-top-left-radius: 4px;
}
.chat-msg.user .chat-bubble {
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue)); color: var(--bg-deep);
    font-weight: 500; border-top-right-radius: 4px;
}
.chat-bubble .emphasis { color: var(--neon-pink-light); font-weight: 600; }
.chat-msg.user .chat-bubble .emphasis { color: var(--bg-deep); font-weight: 700; }
.chat-action {
    display: inline-block; margin-top: 0.5rem; padding: 0.3rem 0.8rem;
    background: rgba(255, 61, 127, 0.15); border: 1px solid rgba(255, 61, 127, 0.3);
    border-radius: 6px; font-size: 0.78rem; color: var(--neon-pink-light); cursor: pointer;
    transition: var(--transition);
}
.chat-action:hover { background: rgba(255, 61, 127, 0.25); }

/* ===== Changelog ===== */
#changelog { background: linear-gradient(180deg, transparent 0%, rgba(20, 28, 53, 0.4) 50%, transparent 100%); }
.changelog-list { max-width: 850px; margin: 0 auto; }
.changelog-item {
    display: flex; gap: 1.8rem; margin-bottom: 2rem; padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}
.changelog-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.changelog-version { flex-shrink: 0; width: 110px; text-align: center; }
.changelog-ver-num {
    font-family: 'Orbitron', serif; font-size: 1.05rem; font-weight: 900; color: var(--neon-cyan-light);
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 8px;
    padding: 0.5rem; margin-bottom: 0.5rem;
}
.changelog-date { font-size: 0.75rem; color: var(--text-muted); }
.changelog-content h4 { font-size: 1.1rem; color: var(--text-primary); margin-bottom: 0.8rem; font-weight: 700; }
.changelog-content ul { list-style: none; }
.changelog-content li {
    display: flex; align-items: flex-start; gap: 0.6rem; margin-bottom: 0.5rem;
    color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6;
}
.changelog-content li::before { content: '›'; color: var(--neon-pink); font-size: 1.1rem; font-weight: 700; flex-shrink: 0; }

/* ===== Roadmap ===== */
#roadmap { position: relative; }
.roadmap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; max-width: 1000px; margin: 0 auto; }
.roadmap-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    padding: 1.8rem 1.5rem; backdrop-filter: blur(10px); transition: var(--transition); text-align: center;
    position: relative;
}
.roadmap-card:hover { border-color: var(--neon-cyan); transform: translateY(-5px); box-shadow: var(--shadow-cyan); }
.roadmap-icon { font-size: 2.2rem; margin-bottom: 0.8rem; }
.roadmap-card h4 { font-size: 1rem; color: var(--text-primary); margin-bottom: 0.5rem; font-weight: 700; }
.roadmap-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
.roadmap-status {
    position: absolute; top: 10px; right: 10px; font-size: 0.68rem; padding: 0.2rem 0.6rem;
    border-radius: 50px; background: rgba(0, 229, 255, 0.15); color: var(--neon-cyan-light);
    border: 1px solid rgba(0,229,255,0.2);
}

/* ===== Reviews ===== */
#reviews { background: linear-gradient(180deg, transparent 0%, rgba(20, 28, 53, 0.4) 50%, transparent 100%); }
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.review-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    padding: 1.8rem; backdrop-filter: blur(10px); transition: var(--transition);
}
.review-card:hover { border-color: var(--neon-pink); transform: translateY(-4px); }
.review-stars { color: var(--neon-yellow); font-size: 0.9rem; margin-bottom: 0.8rem; letter-spacing: 2px; }
.review-text { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.8; margin-bottom: 1.2rem; font-style: italic; }
.review-text::before { content: '"'; color: var(--neon-pink); font-size: 1.5rem; font-family: Georgia, serif; }
.review-text::after { content: '"'; color: var(--neon-pink); font-size: 1.5rem; font-family: Georgia, serif; }
.review-author { display: flex; align-items: center; gap: 0.8rem; }
.review-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
    display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700; color: #fff;
}
.review-name { font-size: 0.9rem; color: var(--text-primary); font-weight: 600; }
.review-role { font-size: 0.75rem; color: var(--text-muted); }

/* ===== Invite Program ===== */
#invite { position: relative; }
.invite-container {
    max-width: 900px; margin: 0 auto;
    background: linear-gradient(135deg, var(--bg-mid) 0%, var(--bg-dark) 100%);
    border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
    padding: 3rem 2.5rem; text-align: center; position: relative; overflow: hidden;
    box-shadow: var(--shadow-purple);
}
.invite-container::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(255,61,127,0.08), transparent, rgba(0,229,255,0.08), transparent);
    animation: rotate-bg 12s linear infinite;
}
@keyframes rotate-bg { to { transform: rotate(360deg); } }
.invite-container > * { position: relative; z-index: 1; }
.invite-icon { font-size: 3.5rem; margin-bottom: 1rem; display: inline-block; animation: bounce 2.5s ease-in-out infinite; }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.invite-title {
    font-family: 'ZCOOL KuaiLe', sans-serif; font-size: 1.8rem; color: var(--neon-pink-light); margin-bottom: 1rem; letter-spacing: 1px;
}
.invite-desc { color: var(--text-secondary); font-size: 1rem; line-height: 1.8; max-width: 600px; margin: 0 auto 1.5rem; }
.invite-reward { display: inline-flex; align-items: baseline; gap: 0.5rem; margin-bottom: 1.5rem; }
.invite-reward .num {
    font-family: 'Orbitron', serif; font-size: 2.8rem; font-weight: 900;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.invite-reward .unit { color: var(--text-secondary); font-size: 1rem; }
.invite-platforms { display: flex; gap: 1rem; justify-content: center; margin-bottom: 2rem; flex-wrap: wrap; }
.invite-platform {
    background: var(--glass-bg); border: 1px solid var(--glass-border); padding: 0.5rem 1.2rem;
    border-radius: 50px; font-size: 0.85rem; color: var(--text-secondary); transition: var(--transition);
}
.invite-platform:hover { border-color: var(--neon-pink); color: var(--neon-pink-light); }
.invite-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== FAQ ===== */
#faq { background: linear-gradient(180deg, transparent 0%, rgba(20, 28, 53, 0.4) 50%, transparent 100%); }
.faq-list { max-width: 850px; margin: 0 auto; }
.faq-item {
    background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    margin-bottom: 1rem; overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: var(--neon-purple); }
.faq-question {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 1.3rem 1.8rem; cursor: pointer; transition: var(--transition);
}
.faq-question:hover { background: rgba(168, 85, 247, 0.08); }
.faq-question h4 { font-size: 1rem; color: var(--text-primary); font-weight: 600; }
.faq-toggle {
    width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%;
    background: rgba(255, 61, 127, 0.15); display: flex; align-items: center; justify-content: center;
    color: var(--neon-pink-light); font-size: 1.1rem; font-weight: 700; transition: var(--transition);
}
.faq-item.active .faq-toggle { transform: rotate(45deg); background: var(--neon-pink); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 1.8rem; }
.faq-item.active .faq-answer { max-height: 300px; padding: 0 1.8rem 1.5rem; }
.faq-answer p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.8; }

/* ===== Final CTA ===== */
#final-cta { position: relative; padding: 5rem 2rem; }
.final-cta-container {
    max-width: 900px; margin: 0 auto; text-align: center;
    background: linear-gradient(135deg, var(--bg-mid) 0%, var(--bg-dark) 100%);
    border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
    padding: 3.5rem 2.5rem; position: relative; overflow: hidden;
    box-shadow: var(--shadow-pink);
}
.final-cta-container::before {
    content: '🎮'; position: absolute; top: -20px; right: 30px; font-size: 8rem; opacity: 0.05;
}
.final-cta-title {
    font-family: 'ZCOOL KuaiLe', sans-serif; font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    color: var(--neon-pink-light); margin-bottom: 1rem; letter-spacing: 1px;
}
.final-cta-desc { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 2rem; line-height: 1.8; }
.final-cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
footer {
    background: rgba(7, 11, 24, 0.92); border-top: 1px solid var(--glass-border);
    padding: 3.5rem 2rem 1.8rem;
}
.footer-container { max-width: 1300px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.footer-brand .brand { margin-bottom: 1.2rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.8; max-width: 320px; }
.footer-col h4 {
    font-size: 0.95rem; font-weight: 700; color: var(--neon-pink-light); margin-bottom: 1.2rem;
    letter-spacing: 1px; padding-bottom: 0.6rem; border-bottom: 1px solid var(--glass-border);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.65rem; }
.footer-col a { color: var(--text-muted); text-decoration: none; font-size: 0.88rem; transition: var(--transition); }
.footer-col a:hover { color: var(--neon-pink-light); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid var(--glass-border); padding-top: 1.5rem;
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footer-copyright { color: var(--text-muted); font-size: 0.82rem; }
.footer-copyright a { color: var(--neon-pink-light); text-decoration: none; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.82rem; transition: var(--transition); }
.footer-links a:hover { color: var(--neon-pink-light); }

/* ===== Scroll Reveal ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-top { flex-direction: column; }
    .hero-info-card { width: 100%; max-width: 500px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .char-fan { width: 420px; height: 260px; }
    .char-card-fan { width: 120px; height: 200px; }
    .char-card-fan:nth-child(1) { left: 15px; }
    .char-card-fan:nth-child(2) { left: 105px; }
    .char-card-fan:nth-child(3) { left: 195px; }
    .char-card-fan:nth-child(4) { left: 285px; }
    .char-card-fan:nth-child(5) { left: 375px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    header { padding: 0.7rem 1rem; }
    .nav-links {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(7, 11, 24, 0.98); backdrop-filter: blur(20px);
        flex-direction: column; padding: 1.5rem; gap: 1.2rem;
        border-bottom: 1px solid var(--glass-border);
    }
    .nav-links.active { display: flex; }
    .mobile-menu-btn { display: block; }
    section { padding: 4rem 1rem; }
    #hero { padding: 6rem 1rem 2.5rem; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .stat-number { font-size: 1.4rem; }
    .char-fan { width: 340px; height: 220px; }
    .char-card-fan { width: 95px; height: 165px; }
    .char-card-fan .fan-emoji { font-size: 2rem; }
    .char-card-fan .fan-name { font-size: 0.85rem; }
    .char-card-fan:nth-child(1) { left: 8px; top: 25px; }
    .char-card-fan:nth-child(2) { left: 78px; top: 10px; }
    .char-card-fan:nth-child(3) { left: 148px; top: 0; }
    .char-card-fan:nth-child(4) { left: 218px; top: 10px; }
    .char-card-fan:nth-child(5) { left: 288px; top: 25px; }
    .about-content { padding: 2rem 1.5rem; }
    .features-grid { grid-template-columns: 1fr; }
    .changelog-item { flex-direction: column; gap: 1rem; }
    .changelog-version { width: 100%; display: flex; align-items: center; gap: 1rem; }
    .changelog-ver-num { margin-bottom: 0; }
    .chat-body { padding: 1.2rem; }
    .chat-bubble { max-width: 85%; font-size: 0.88rem; }
    .invite-container, .final-cta-container { padding: 2.5rem 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-buttons, .invite-buttons, .final-cta-buttons { flex-direction: column; width: 100%; }
    .btn { width: 100%; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
}