/* Banner Slider Styles */
.banner-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 30%; /* 保持16:9的宽高比 */
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 15px;
    background: var(--bg-color);
    box-shadow: var(--card-shadow);
    animation: fadeIn 0.5s ease-out;
}

.banner-container.loading {
    background: linear-gradient(
        90deg,
        var(--border-color) 25%,
        var(--bg-color) 50%,
        var(--border-color) 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 768px) {
    .banner-container {
        padding-bottom: 50%; /* 移动端使用更高的比例 */
        overflow: hidden;
    }
    .slide img {
        --webkit-transform: translateZ(0); /* 修复iOS图片缩放问题 */
    }
    
    .slider-btn {
        width: 44px;
        height: 44px;
        margin: 0 5px;
    }
    
    .slider-dot {
        width: 10px;
        height: 10px;
    }
    
    .slider {
        transition-duration: 0.3s; /* 移动端更快的过渡 */
    }
}

.slider {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); /* 更平滑的缓动函数 */
    height: 100%;
    will-change: transform; /* 优化动画性能 */
    touch-action: pan-y; /* 允许垂直滚动但阻止水平滚动 */
    user-select: none; /* 防止触摸时选中文本 */
    outline: none; /* 移除默认焦点轮廓 */
    cursor: grab;
    scroll-snap-type: x mandatory;
    overscroll-behavior-x: contain;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.slider:active {
    cursor: grabbing;
    transition: none;
}

.slider:focus-visible {
    box-shadow: 0 0 0 3px var(--active-color);
}

/* 添加调试样式 */
.slide img {
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    background: var(--border-color); /* 图片加载失败时的背景色 */
    max-width: 100%;
    max-height: 100%;
    --webkit-transform: translateZ(0); /* 修复iOS图片缩放问题 */
}

.slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    scroll-snap-align: start;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    border-radius: 8px;
    transition: opacity 0.3s ease;
    opacity: 0;
    animation: fadeIn 0.5s ease-out forwards;
    animation-delay: 0.3s;
    position: absolute; /* 改为绝对定位 */
    top: 0;
    left: 0;
}

.slide img::after {
    content: "图片加载失败";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--border-color);
    color: var(--texts-color);
    font-size: 14px;
    opacity: 0;
}

.slide img[data-error]::after {
    opacity: 1;
}

.slide img:hover {
    opacity: 0.9;
}

.slider-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
}

.slider-btn {
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 10px;
    z-index: 20; /* 提高z-index确保按钮始终可见 */
    transition: background 0.2s ease, transform 0.2s ease;
}

.slider-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.slider-dots {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 15; /* 确保指示点在内容之上但在按钮之下 */
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}

.slider-dot:hover {
    transform: scale(1.2);
}

.slider-dot.active {
    background: var(--active-color);
    transform: scale(1.2);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(var(--active-color-rgb), 0.7); }
    70% { box-shadow: 0 0 0 6px rgba(var(--active-color-rgb), 0); }
    100% { box-shadow: 0 0 0 0 rgba(var(--active-color-rgb), 0); }
}