:root{--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--bg-primary:#0a0a0f;--bg-secondary:#1a1a2e;--bg-card:#16213e;--glass-bg:#ffffff14;--glass-border:1px solid #ffffff26;--glass-border-focus:1px solid #fff6;--action-primary-start:#6366f1;--action-primary-end:#8b5cf6;--action-success:#10b981;--action-error:#ef4444;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-hint:#fff6}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0;font-family:Inter,Noto Sans TC,system-ui,sans-serif}*{box-sizing:border-box}.glass-panel{background:var(--glass-bg);border:var(--glass-border);-webkit-backdrop-filter:blur(8px);border-radius:12px}.btn-primary{background:linear-gradient(135deg, var(--action-primary-start), var(--action-primary-end));color:#fff;padding:var(--space-sm) var(--space-md);cursor:pointer;border:none;border-radius:8px;font-weight:500;transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}a,button{transition:opacity .2s}a:active,button:active{opacity:.7}.hero-number{font-family:Inter,monospace;font-size:3rem;font-weight:700}