body{background:#0e0520}.ak-hero{background:linear-gradient(135deg,#4a0e1a,#2d0a2e,#16082b);padding:calc(var(--header-h) + var(--sp-12)) var(--sp-4) var(--sp-12);position:relative;overflow:hidden}.ak-hero:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle,rgba(245,200,66,.05) 1px,transparent 1px);background-size:26px 26px}.hero-layout{display:grid;gap:var(--sp-10);align-items:center;grid-template-columns:1fr;position:relative;z-index:1;max-width:var(--max-w);margin:0 auto}@media(min-width:768px){.hero-layout{grid-template-columns:1fr 1fr}}@keyframes floatAK{0%,to{transform:rotate(-5deg) translateY(0)}50%{transform:rotate(-5deg) translateY(-12px)}}.hero-card-wrap .iridescent-card{animation:floatAK 3.8s ease-in-out infinite}.wild-cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3)}.wild-card-item{display:flex;flex-direction:column;align-items:center;gap:var(--sp-2);padding:var(--sp-4) var(--sp-2);background:#f5c84212;border:1px solid rgba(245,200,66,.2);border-radius:var(--r-lg);text-align:center}.wild-card-rank{font-size:1.8rem;font-weight:800;color:var(--gold);line-height:1}.wild-card-label{font-size:.68rem;color:var(--text-muted)}.in-page-nav{position:sticky;top:var(--header-h);z-index:50;background:#0e0520f2;backdrop-filter:blur(10px);border-bottom:1px solid rgba(245,200,66,.1);overflow-x:auto;scrollbar-width:none}.in-page-nav::-webkit-scrollbar{display:none}.in-page-nav-inner{display:flex;width:max-content;min-width:100%}.in-page-nav a{padding:13px 16px;font-size:.82rem;font-weight:600;color:var(--text-muted);white-space:nowrap;border-bottom:2px solid transparent;transition:all var(--t-sm) ease}.in-page-nav a:hover{color:var(--text-primary)}.in-page-nav a.active{color:var(--gold);border-bottom-color:var(--gold)}.rule-block{display:flex;gap:var(--sp-4);align-items:flex-start;padding:var(--sp-5);background:#ffffff08;border:1px solid rgba(245,200,66,.08);border-radius:var(--r-lg)}.rule-num{width:40px;height:40px;border-radius:50%;background:var(--grad-gold);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;color:#1a0a04;flex-shrink:0}.rule-title{font-weight:700;font-size:.98rem;margin-bottom:4px}.rule-desc{font-size:.88rem;color:var(--text-muted);line-height:1.7}.rule-desc strong{color:var(--text-primary)}.example-card{background:linear-gradient(145deg,#16082be6,#2d0a2eb3);border:1px solid rgba(245,200,66,.15);border-radius:var(--r-xl);padding:var(--sp-6)}.example-hand-display{display:flex;gap:var(--sp-2);align-items:center;margin:var(--sp-4) 0;flex-wrap:wrap}.hand-card{width:48px;height:66px;border-radius:8px;background:linear-gradient(145deg,#1e1e2a,#2e2e3e);border:1px solid rgba(245,200,66,.25);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-weight:800;font-size:1rem;color:var(--gold)}.hand-card.red{color:#f44;border-color:#ff444440}.hand-card.wild{border-color:#9b5de580;background:linear-gradient(145deg,#1a102a,#2a1a3e);box-shadow:0 0 12px #9b5de533}.hand-card.wild .card-rank{color:var(--peacock-violet)}.hand-suit{font-size:.8rem}.hand-arrow{font-size:1.2rem;color:var(--gold-antique)}.hand-result{display:flex;align-items:center;gap:var(--sp-2);padding:var(--sp-2) var(--sp-3);border-radius:var(--r-sm);background:#f5c8421a;border:1px solid rgba(245,200,66,.2);font-weight:700;font-size:.9rem;color:var(--gold)}.example-step{font-size:.88rem;color:var(--text-muted);line-height:1.7}.example-step strong{color:var(--text-primary)}.strategy-grid{display:grid;gap:var(--sp-4);grid-template-columns:1fr}@media(min-width:640px){.strategy-grid{grid-template-columns:1fr 1fr}}.strategy-card{padding:var(--sp-5);background:#ffffff08;border:1px solid rgba(245,200,66,.1);border-radius:var(--r-lg)}.strategy-icon{font-size:1.8rem;margin-bottom:var(--sp-2);line-height:1}.strategy-title{font-weight:700;font-size:.98rem;color:var(--gold);margin-bottom:var(--sp-1)}.strategy-text{font-size:.87rem;color:var(--text-muted);line-height:1.65}.mistake-item{display:flex;gap:var(--sp-3);padding:var(--sp-4);background:#c0392b0f;border:1px solid rgba(192,57,43,.15);border-radius:var(--r-md);align-items:flex-start}.mistake-icon{font-size:1.2rem;flex-shrink:0;line-height:1.3}.mistake-text{font-size:.88rem;color:var(--text-muted);line-height:1.65}.mistake-text strong{color:#ff6b6b}.related-grid{display:flex;gap:var(--sp-4);overflow-x:auto;scrollbar-width:none;padding-bottom:var(--sp-2)}.related-grid::-webkit-scrollbar{display:none}.related-item{display:flex;flex-direction:column;align-items:center;gap:var(--sp-3);min-width:140px;text-decoration:none;color:inherit;padding:var(--sp-4);border:1px solid rgba(245,200,66,.1);border-radius:var(--r-lg);transition:all var(--t-md) ease}.related-item:hover{border-color:#f5c8424d;transform:translateY(-2px)}.related-name{font-size:.88rem;font-weight:700;color:var(--gold);text-align:center}.related-tag{font-size:.68rem;color:var(--text-dim);text-align:center}