/* 轮播图滑动动画效果 */

/* 为轮播图容器添加平滑过渡 */
.carousel-inner {
    position: relative;
    overflow: hidden;
}

/* 轮播图项目基础样式 - 优化向左切换速度 */
.carousel-item {
    position: relative;
    display: none;
    float: left;
    width: 100%;
    margin-right: -100%;
    backface-visibility: hidden;
    /* 优化动画时间，减少白屏 */
    transition: 
        transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        filter 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

/* 激活状态的轮播图项目 */
.carousel-item.active,
.carousel-item-next,
.carousel-item-prev {
    display: block;
}

.carousel-item.active {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: blur(0px) brightness(1);
}

/* 左滑动画 - 下一张图片从右侧滑入 */
.carousel-item-next {
    position: absolute;
    top: 0;
    transform: translateX(100%) scale(0.95);
    opacity: 0;
    filter: blur(2px) brightness(0.8);
}

.carousel-item-prev {
    position: absolute;
    top: 0;
    transform: translateX(-100%) scale(0.95);
    opacity: 0;
    filter: blur(2px) brightness(0.8);
}

/* 滑动过渡动画 - 增强淡入淡出效果 */
.carousel-item-next.carousel-item-start {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item-prev.carousel-item-start {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item.active.carousel-item-start {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item-next.carousel-item-end {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item-prev.carousel-item-end {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

/* 当前激活项目的退出动画 */
.carousel-item.active.carousel-item-end {
    transform: translateX(-100%) scale(0.95);
    opacity: 0;
    filter: blur(2px) brightness(0.8);
}

.carousel-item.active.carousel-item-start {
    transform: translateX(100%) scale(0.95);
    opacity: 0;
    filter: blur(2px) brightness(0.8);
}

/* 向右滑动（上一张）- 优化快速切换 */
.carousel-item-prev.carousel-item-end {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item.active.carousel-item-start {
    transform: translateX(100%) scale(0.98);
    opacity: 0.3;
    filter: blur(1px) brightness(0.9);
}

/* 向左滑动（下一张）- 保持正常效果 */
.carousel-item-next.carousel-item-end {
    transform: translateX(0) scale(1);
    opacity: 1;
    filter: blur(0px) brightness(1);
}

.carousel-item.active.carousel-item-end {
    transform: translateX(-100%) scale(0.98);
    opacity: 0.3;
    filter: blur(1px) brightness(0.9);
}

/* 增强的滑动效果 */
@media (prefers-reduced-motion: no-preference) {
    .carousel-item {
        transition: 
            transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
            opacity 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
            filter 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    /* 添加更明显的缩放和模糊效果 */
    .carousel-item.active {
        transform: translateX(0) scale(1);
        opacity: 1;
        filter: blur(0px) brightness(1);
    }
    
    .carousel-item-next,
    .carousel-item-prev {
        transform: translateX(100%) scale(0.9);
        opacity: 0;
        filter: blur(3px) brightness(0.7);
    }
    
    .carousel-item-prev {
        transform: translateX(-100%) scale(0.9);
    }
}

/* 轮播图内容的淡入动画增强 */
.carousel-caption {
    animation: fadeInUpEnhanced 1s ease-out 0.4s both;
    opacity: 0;
}

.carousel-item.active .carousel-caption {
    animation: fadeInUpEnhanced 1s ease-out 0.4s both;
}

@keyframes fadeInUpEnhanced {
    0% {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
        filter: blur(2px);
    }
    50% {
        opacity: 0.7;
        transform: translateY(20px) scale(0.98);
        filter: blur(1px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0px);
    }
}

/* CSS自定义属性 - 可调节的发光效果参数 */
:root {
    --glow-color: #FFFFFF; /* 默认主流白色 */
    --glow-intensity-low: 0.4;
    --glow-intensity-medium: 0.7;
    --glow-intensity-high: 1.0;
    --glow-blur-small: 10px;  /* 从8px扩大到10px */
    --glow-blur-medium: 18px; /* 从16px扩大到18px */
    --glow-blur-large: 26px;  /* 从24px扩大到26px */
}

/* 纯线条指示器容器 - 无背景 */
.carousel-indicators {
    bottom: 30px;
    margin-bottom: 0;
    z-index: 15;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 0;
    /* 完全透明，无背景，无边框 */
    background: none;
    border: none;
    backdrop-filter: none;
    width: fit-content;
    margin: 0 auto;
    /* 无阴影效果 */
    box-shadow: none;
}

/* 透明发光的指示器按钮 */
.carousel-indicators [data-bs-target] {
    width: 32px;
    height: 4px;
    border-radius: 2px;
    margin: 0;
    /* 透明背景 */
    background: transparent;
    /* 主流白色发光边框 */
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: visible;
    /* 基础白色发光效果 */
    box-shadow: 
        0 0 6px rgba(255, 255, 255, var(--glow-intensity-low)),
        inset 0 0 4px rgba(255, 255, 255, 0.1);
}

.carousel-indicators [data-bs-target]::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent
    );
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.carousel-indicators [data-bs-target]:hover {
    border-color: rgba(255, 255, 255, 0.9);
    transform: scaleY(1.5);
    /* 增强白色发光效果 */
    box-shadow: 
        0 0 var(--glow-blur-small) rgba(255, 255, 255, var(--glow-intensity-medium)),
        0 0 var(--glow-blur-medium) rgba(255, 255, 255, calc(var(--glow-intensity-medium) * 0.5)),
        inset 0 0 6px rgba(255, 255, 255, 0.2);
}

.carousel-indicators [data-bs-target]:hover::before {
    opacity: 1;
}

.carousel-indicators [data-bs-target].active {
    width: 48px;
    border-color: rgba(255, 255, 255, 1);
    transform: scaleY(1.2);
    /* 最强白色发光效果 */
    box-shadow: 
        0 0 var(--glow-blur-small) rgba(255, 255, 255, var(--glow-intensity-high)),
        0 0 var(--glow-blur-medium) rgba(255, 255, 255, calc(var(--glow-intensity-high) * 0.7)),
        0 0 var(--glow-blur-large) rgba(255, 255, 255, calc(var(--glow-intensity-high) * 0.4)),
        inset 0 0 8px rgba(255, 255, 255, 0.3);
    /* 内部白色填充发光 */
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.15), 
        rgba(255, 255, 255, 0.25), 
        rgba(255, 255, 255, 0.15)
    );
}

.carousel-indicators [data-bs-target].active::before {
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.7), 
        transparent
    );
    animation: activeIndicatorGlow 2s ease-in-out infinite;
    opacity: 1;
}

/* 激活指示器的发光脉冲动画 */
@keyframes activeIndicatorGlow {
    0%, 100% {
        opacity: 0.6;
        transform: scaleX(1);
    }
    50% {
        opacity: 1;
        transform: scaleX(1.1);
    }
}

/* 自定义发光颜色类 */
.carousel-indicators.glow-blue {
    --glow-color: #4A90E2;
}

.carousel-indicators.glow-green {
    --glow-color: #5CB85C;
}

.carousel-indicators.glow-purple {
    --glow-color: #9B59B6;
}

.carousel-indicators.glow-orange {
    --glow-color: #F39C12;
}

.carousel-indicators.glow-red {
    --glow-color: #E74C3C;
}

/* 发光强度调节类 */
.carousel-indicators.glow-subtle {
    --glow-intensity-low: 0.2;
    --glow-intensity-medium: 0.4;
    --glow-intensity-high: 0.6;
}

.carousel-indicators.glow-normal {
    --glow-intensity-low: 0.3;
    --glow-intensity-medium: 0.6;
    --glow-intensity-high: 0.9;
}

.carousel-indicators.glow-intense {
    --glow-intensity-low: 0.5;
    --glow-intensity-medium: 0.8;
    --glow-intensity-high: 1.2;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .carousel-indicators {
        bottom: 20px;
        padding: 8px 16px;
        gap: 6px;
        --glow-blur-small: 6px;
        --glow-blur-medium: 12px;
        --glow-blur-large: 18px;
    }
    
    .carousel-indicators [data-bs-target] {
        width: 24px;
        height: 3px;
    }
    
    .carousel-indicators [data-bs-target].active {
        width: 36px;
    }
}

/* 深色主题适配 */
@media (prefers-color-scheme: dark) {
    .carousel-indicators {
        border-color: rgba(74, 144, 226, 0.6);
    }
    
    .carousel-indicators [data-bs-target] {
        border-color: rgba(74, 144, 226, 0.7);
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .carousel-indicators {
        border-width: 2px;
    }
    
    .carousel-indicators [data-bs-target] {
        border-width: 2px;
    }
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
    .carousel-indicators [data-bs-target] {
        transition: none;
    }
    
    .carousel-indicators [data-bs-target].active::before {
        animation: none;
    }
}

/* 轮播图控制按钮 - 贴紧边缘半隐藏样式 */
.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 80px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 0;
    transition: all 0.3s ease;
    opacity: 0.7;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(15px);
    border: none;
    z-index: 10;
}

/* 左按钮贴紧左边缘半隐藏 */
.carousel-control-prev {
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 0 25px 25px 0;
    padding-left: 20px;
    justify-content: flex-end;
}

/* 右按钮贴紧右边缘半隐藏 */
.carousel-control-next {
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 25px 0 0 25px;
    padding-right: 20px;
    justify-content: flex-start;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
}

/* 左按钮悬停时完全显示 */
.carousel-control-prev:hover {
    left: 0;
    transform: translateY(-50%) translateX(0);
}

/* 右按钮悬停时完全显示 */
.carousel-control-next:hover {
    right: 0;
    transform: translateY(-50%) translateX(0);
}

/* 按钮图标样式 */
.carousel-control-prev i,
.carousel-control-next i {
    font-size: 22px;
    color: white;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* 移动端隐藏左右按钮 */
@media (max-width: 768px) {
    .carousel-control-prev,
    .carousel-control-next {
        display: none !important;
    }
}

/* 平板设备优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .carousel-control-prev,
    .carousel-control-next {
        width: 45px;
        height: 70px;
    }
    
    .carousel-control-prev {
        left: -12px;
        padding-left: 18px;
    }
    
    .carousel-control-next {
        right: -12px;
        padding-right: 18px;
    }
    
    .carousel-control-prev i,
    .carousel-control-next i {
        font-size: 20px;
    }
}

/* 轮播图内容淡入动画 */
.carousel-caption {
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .carousel-item {
        transition: transform 0.6s ease-in-out;
    }
    
    .carousel-caption {
        animation: fadeInUp 0.6s ease-out 0.2s both;
    }
}

/* 触摸滑动支持 */
.carousel-inner {
    touch-action: pan-y;
}

/* 防止图片拖拽 */
.carousel-item img {
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}