ngle = (i / particlesPerRing) * Math.PI * 2;
              const particle = document.createElementNS(svgNS, "circle");
              particle.classList.add('ring-particle');
              
              const r = 0.8 + Math.random() * 0.7; // 粒子半径
              particle.setAttribute("r", r);
              particle.setAttribute("cx", Math.cos(angle) * currentRingRadius);
              particle.setAttribute("cy", Math.sin(angle) * currentRingRadius);
              
              particle.style.fill = 