.laixe-scope{--color-black:#000;--color-red:#d00;--color-gold:#fc0;--card-bg:#14141ecc;--card-border:#ffffff1a;--accent:#fc0;--accent-red:#d00;--success:#22c55e;--error:#ef4444}.glass-card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:16px}.gradient-text{background:linear-gradient(135deg,var(--color-gold)0%,#fff 50%,var(--color-red)100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.laixe-btn-primary{background:linear-gradient(135deg,var(--color-gold)0%,#e6b800 100%);color:#000;cursor:pointer;border:none;border-radius:12px;padding:12px 24px;font-weight:600;transition:all .2s}.laixe-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ffcc004d}.btn-secondary{color:#fff;cursor:pointer;background:#ffffff1a;border:1px solid #fff3;border-radius:12px;padding:12px 24px;font-weight:500;transition:all .2s}.btn-secondary:hover{background:#ffffff26;border-color:#ffffff4d}.answer-option{cursor:pointer;background:#ffffff0d;border:2px solid #ffffff26;border-radius:12px;padding:16px;transition:all .2s}.answer-option:hover{background:#ffffff1a;border-color:#ffcc0080}.answer-option.selected{border-color:var(--color-gold);background:#ffcc0026}.answer-option.correct{border-color:var(--success);background:#22c55e26}.answer-option.incorrect{border-color:var(--error);background:#ef444426}.laixe-progress-bar{background:#ffffff1a;border-radius:4px;height:8px;overflow:hidden}.laixe-progress-bar-fill{background:linear-gradient(90deg,var(--color-gold)0%,var(--color-red)100%);border-radius:4px;height:100%;transition:width .3s}.theme-card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--card-border);cursor:pointer;border-radius:16px;padding:20px;transition:all .3s}.theme-card:hover{border-color:#ffcc0080;transform:translateY(-4px);box-shadow:0 12px 40px #0006}.nav-link{color:#ffffffb3;border-radius:8px;padding:8px 16px;font-weight:500;transition:all .2s}.nav-link:hover{color:#fff;background:#ffffff1a}.nav-link.active{color:var(--color-gold);background:#ffcc001a}@keyframes laixeFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.laixe-animate-fade-in{animation:.3s forwards laixeFadeIn}