:root{--bg-primary: #0a0a0f;--bg-secondary: #10101a;--bg-surface: #16162a;--bg-surface-hover: #1e1e38;--bg-glass: rgba(255, 255, 255, .04);--bg-glass-hover: rgba(255, 255, 255, .08);--text-primary: #e8e6e3;--text-secondary: #a0a0b0;--text-muted: #6a6a7a;--text-inverse: #0a0a0f;--accent-gold: #d4a853;--accent-gold-light: #f0c97a;--accent-gold-dim: rgba(212, 168, 83, .15);--hsk-1: #4ecdc4;--hsk-2: #4ecdc4;--hsk-3: #f0a500;--hsk-4: #f0a500;--hsk-5: #e74c3c;--hsk-6: #e74c3c;--hsk-none: #9b59b6;--success: #2ecc71;--warning: #f39c12;--error: #e74c3c;--info: #3498db;--font-ui: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-hanzi: "Noto Serif SC", "Songti SC", serif;--font-vi: "Inter", sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 2.5rem;--text-hanzi: 1.35rem;--leading-tight: 1.3;--leading-normal: 1.6;--leading-relaxed: 1.8;--space-1: .25rem;--space-2: .5rem;--space-3: 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solid var(--glass-border);transition:all var(--transition-base)}.btn-ghost:hover{background:var(--bg-glass-hover);border-color:var(--accent-gold);color:var(--accent-gold)}.hsk-badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:600;letter-spacing:.5px}.hsk-badge--1,.hsk-badge--2{background:#4ecdc426;color:var(--hsk-1)}.hsk-badge--3,.hsk-badge--4{background:#f0a50026;color:var(--hsk-3)}.hsk-badge--5,.hsk-badge--6{background:#e74c3c26;color:var(--hsk-5)}.hsk-badge--none{background:#9b59b626;color:var(--hsk-none)}.section-title{font-size:var(--text-lg);font-weight:600;margin-bottom:var(--space-4);display:flex;align-items:center;gap:var(--space-2)}.page{opacity:0;transform:translateY(10px);animation:pageEnter .35s ease forwards}@keyframes pageEnter{to{opacity:1;transform:translateY(0)}}.empty-state{text-align:center;padding:var(--space-16) 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