/* ===========================
   Spatial 视差效果样式
   =========================== */

/* 视差图片容器 */
.spatial-image-container {
    position: relative;
    overflow: hidden;
    perspective: 1000px;
    transform-style: preserve-3d;
}

/* 深度图层 */
.spatial-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    will-change: transform;
    backface-visibility: hidden;
}

.spatial-layer-bg {
    z-index: 1;
    transform: translateZ(-50px) scale(1.1);
}

.spatial-layer-mid {
    z-index: 2;
    transform: translateZ(0px);
}

.spatial-layer-fg {
    z-index: 3;
    transform: translateZ(50px) scale(0.95);
}

/* 主图片样式 */
.spatial-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* 滚动视差效果 */
.news-card[data-scroll-parallax] .news-card-image-wrapper {
    transform-style: preserve-3d;
    perspective: 500px;
}

.news-card[data-scroll-parallax] .news-card-image {
    transition: transform 0.15s ease-out;
}

/* 陀螺仪/鼠标视差效果 */
.spatial-active .spatial-image {
    transition: transform 0.08s ease-out;
}

/* 深度遮罩效果 - 模拟景深 */
.depth-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s;
}

.spatial-active .depth-mask {
    opacity: 1;
}

/* 边缘模糊效果 */
.edge-blur {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.1);
    z-index: 5;
}

/* 高光反射效果 */
.specular-highlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at var(--highlight-x, 50%) var(--highlight-y, 30%),
        rgba(255,255,255,0.15) 0%,
        transparent 50%
    );
    pointer-events: none;
    z-index: 6;
    opacity: 0;
    transition: opacity 0.3s;
}

.spatial-active .specular-highlight {
    opacity: 1;
}

/* 文章详情页中的Spatial图片 */
.article-spatial-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 16px 0;
    cursor: grab;
}

.article-spatial-image:active {
    cursor: grabbing;
}

.article-spatial-image .spatial-image {
    transform-origin: center center;
}

/* 全屏Spatial模式 */
.spatial-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: black;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spatial-fullscreen .spatial-image-container {
    width: 100%;
    height: 100%;
}

.spatial-fullscreen .close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    z-index: 10001;
    backdrop-filter: blur(10px);
}

/* Gaussian Splat渲染容器 */
.splat-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.splat-container canvas {
    width: 100%;
    height: 100%;
}

/* 加载中状态 */
.spatial-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: white;
    z-index: 20;
}

.spatial-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spatial-loading-text {
    font-size: 12px;
    opacity: 0.8;
}

/* 视差强度指示器 */
.parallax-intensity {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    padding: 4px 8px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 15;
}

.parallax-intensity-bar {
    width: 40px;
    height: 4px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    overflow: hidden;
}

.parallax-intensity-fill {
    height: 100%;
    background: white;
    border-radius: 2px;
    transition: width 0.2s;
}

/* 深度可视化（调试用） */
.depth-debug {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.depth-debug.visible {
    opacity: 0.5;
}

/* 触摸反馈 */
.spatial-touch-feedback {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 50%;
    pointer-events: none;
    z-index: 30;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.3s ease-out;
}

.spatial-touch-feedback.active {
    transform: translate(-50%, -50%) scale(1);
}

/* 动画过渡效果 */
.spatial-transition-enter {
    animation: spatialEnter 0.5s ease-out;
}

@keyframes spatialEnter {
    from {
        transform: scale(1.1) translateZ(-100px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateZ(0);
        opacity: 1;
    }
}

/* 陀螺仪提示 */
.gyro-hint {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(10px);
    color: white;
    padding: 12px 20px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    z-index: 50;
    animation: fadeInUp 0.5s ease-out;
}

.gyro-hint-icon {
    animation: tilt 2s ease-in-out infinite;
}

@keyframes tilt {
    0%, 100% { transform: rotate(-10deg); }
    50% { transform: rotate(10deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 媒体查询 - 桌面端 */
@media (min-width: 768px) {
    .gyro-hint {
        display: none;
    }
    
    /* 桌面端显示鼠标提示 */
    .mouse-hint {
        display: flex;
    }
}

@media (max-width: 767px) {
    .mouse-hint {
        display: none;
    }
}