的动画
          group.style.animationDuration = `${config.duration}s`;
          group.style.animationTimingFunction = 'linear';
          group.style.animationIterationCount = 'infinite';
          if (config.direction) {
              group.style.animationDirection = config.direction;
          }
          
          const currentRingRadius = ringBaseRadius * (1 + ringIndex * 0.4 + Math.random()*0.2); // 半径随环增加
  
          for (let i = 0; i < particlesPerRing; i++) {
              const a