/* 乳康贝悦视频点播 - 前端播放器样式 */

.rukan-video-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.rukan-video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 比例 */
    height: 0;
    overflow: hidden;
}

.rukan-video-player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
}

.rukan-video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: opacity 0.3s;
    opacity: 0;
    z-index: 20;
}

.rukan-video-container:hover .rukan-video-controls {
    opacity: 1;
}

.rukan-video-controls-left,
.rukan-video-controls-center,
.rukan-video-controls-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.rukan-video-controls button {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 20px;
    padding: 5px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.rukan-video-controls button:hover {
    opacity: 1;
}

.rukan-video-controls button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.rukan-video-progress {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
    margin: 0 15px;
}

.rukan-video-progress-bar {
    position: absolute;
    height: 100%;
    background: #ff4757;
    border-radius: 2px;
    width: 0;
}

.rukan-video-progress-buffer {
    position: absolute;
    height: 100%;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    width: 0;
}

.rukan-video-time {
    color: #fff;
    font-size: 14px;
    font-family: monospace;
    min-width: 100px;
    text-align: center;
}

.rukan-video-volume {
    display: flex;
    align-items: center;
    gap: 5px;
}

.rukan-video-volume-slider {
    width: 80px;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
    display: none;
}

.rukan-video-volume-slider.active {
    display: block;
}

.rukan-video-volume-level {
    position: absolute;
    height: 100%;
    background: #fff;
    border-radius: 2px;
    width: 70%;
}

.rukan-video-settings {
    position: relative;
}

.rukan-video-settings-menu {
    position: absolute;
    bottom: 100%;
    right: 0;
    background: rgba(0,0,0,0.9);
    border-radius: 4px;
    padding: 10px;
    min-width: 150px;
    display: none;
    z-index: 30;
}

.rukan-video-settings:hover .rukan-video-settings-menu {
    display: block;
}

.rukan-video-settings-menu select {
    width: 100%;
    background: #333;
    color: #fff;
    border: 1px solid #555;
    border-radius: 3px;
    padding: 5px;
    margin-bottom: 5px;
    font-size: 12px;
}

.rukan-video-settings-menu label {
    display: block;
    color: #fff;
    font-size: 12px;
    margin-bottom: 3px;
}

/* 水印画布 */
.rukan-video-watermark {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

/* 加载状态 */
.rukan-video-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 16px;
    text-align: center;
}

.rukan-video-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: #ff4757;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 错误状态 */
.rukan-video-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.8);
    color: #ff4757;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    max-width: 80%;
    z-index: 40;
}

.rukan-video-error .error-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.rukan-video-error .error-message {
    font-size: 16px;
    margin-bottom: 15px;
}

.rukan-video-error .error-retry {
    background: #ff4757;
    color: #fff;
    border: none;
    padding: 8px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

/* 全屏样式 */
.rukan-video-container:-webkit-full-screen {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
}

.rukan-video-container:-moz-full-screen {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
}

.rukan-video-container:-ms-fullscreen {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
}

.rukan-video-container:fullscreen {
    width: 100%;
    height: 100%;
    max-width: none;
    border-radius: 0;
}

/* 响应式 */
@media (max-width: 768px) {
    .rukan-video-controls {
        padding: 5px 10px;
    }
    
    .rukan-video-controls button {
        font-size: 16px;
    }
    
    .rukan-video-time {
        font-size: 12px;
        min-width: 80px;
    }
    
    .rukan-video-volume-slider {
        width: 60px;
    }
}

/* 课程视频样式 */
.rukan-video-preview {
    position: relative;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    margin: 20px 0;
}

.preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    padding: 20px;
    z-index: 50;
}

.preview-overlay h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #fff;
}

.preview-overlay .button {
    background: #ff4757;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    transition: background 0.3s;
}

.preview-overlay .button:hover {
    background: #ff2e43;
}

/* 播放列表 */
.rukan-video-playlist {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

.rukan-video-playlist h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333;
}

.rukan-video-playlist-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.rukan-video-playlist-item {
    display: flex;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #e9ecef;
    cursor: pointer;
    transition: background 0.2s;
}

.rukan-video-playlist-item:hover {
    background: #e9ecef;
}

.rukan-video-playlist-item.active {
    background: #007bff;
    color: #fff;
}

.rukan-video-playlist-item .playlist-thumb {
    width: 60px;
    height: 40px;
    background: #ccc;
    border-radius: 4px;
    margin-right: 10px;
    overflow: hidden;
}

.rukan-video-playlist-item .playlist-title {
    flex: 1;
    font-size: 14px;
}

.rukan-video-playlist-item .playlist-duration {
    font-size: 12px;
    color: #666;
    margin-left: 10px;
}

.rukan-video-playlist-item.active .playlist-duration {
    color: #fff;
}

/* 统计信息 */
.rukan-video-stats {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

.rukan-video-stats .stats-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

/* 工具提示 */
.rukan-video-tooltip {
    position: absolute;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.rukan-video-tooltip.show {
    opacity: 1;
}

/* 无障碍支持 */
.rukan-video-container:focus-within {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.rukan-video-controls button:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* 暗色主题 */
@media (prefers-color-scheme: dark) {
    .rukan-video-playlist {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .rukan-video-playlist h3 {
        color: #e2e8f0;
    }
    
    .rukan-video-playlist-item {
        border-bottom-color: #4a5568;
    }
    
    .rukan-video-playlist-item:hover {
        background: #4a5568;
    }
    
    .rukan-video-stats {
        background: #2d3748;
        color: #a0aec0;
    }
}