/* 粉色科技感加载效果 - 霓虹扫描光 + 浮动粒子 */
.loading-spinner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 50%, #fbcfe8 100%);
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.loading-spinner::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(236, 72, 153, 0.3), 
        rgba(244, 63, 94, 0.6), 
        rgba(236, 72, 153, 0.3), 
        transparent
    );
    animation: scan 2s infinite;
}

.loading-spinner::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    margin: -40px 0 0 -40px;
    background: radial-gradient(circle, rgba(244, 63, 94, 0.8) 0%, transparent 70%);
    filter: blur(10px);
    animation: pulse 2s ease-in-out infinite;
}

/* 粒子效果 */
.loading-spinner .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: linear-gradient(135deg, #ec4899, #f472b6);
    border-radius: 50%;
    animation: float 3s infinite;
    box-shadow: 0 0 15px rgba(236, 72, 153, 0.5);
}

.loading-spinner .particle:nth-child(1) {
    top: 15%;
    left: 20%;
    animation-delay: 0s;
}

.loading-spinner .particle:nth-child(2) {
    top: 70%;
    left: 75%;
    animation-delay: 1s;
}

.loading-spinner .particle:nth-child(3) {
    top: 45%;
    left: 55%;
    animation-delay: 2s;
}

.loading-spinner .particle:nth-child(4) {
    top: 80%;
    left: 15%;
    animation-delay: 0.5s;
}

.loading-spinner .particle:nth-child(5) {
    top: 25%;
    left: 80%;
    animation-delay: 1.5s;
}

/* 扫描光动画 */
@keyframes scan {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* 脉冲光晕效果 */
@keyframes pulse {
    0%, 100% {
        transform: scale(0.8);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.9;
    }
}

/* 粒子浮动动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 0.7;
    }
    25% {
        transform: translateY(-15px) translateX(10px) scale(1.1);
        opacity: 1;
    }
    50% {
        transform: translateY(0) translateX(20px) scale(1);
        opacity: 0.7;
    }
    75% {
        transform: translateY(15px) translateX(10px) scale(1.1);
        opacity: 0.9;
    }
}

/* 为不同容器适配 */
.post-card-thumb .loading-spinner,
.topic-thumb .loading-spinner,
.media-content .loading-spinner {
    border-radius: 8px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .loading-spinner::after {
        width: 60px;
        height: 60px;
        margin: -30px 0 0 -30px;
    }
    
    .loading-spinner .particle {
        width: 4px;
        height: 4px;
    }
}