.video-player {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    background-color: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}
.video-player.fullscreen {
    max-width: 100%;
    border-radius: 0;
}
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #000;
}
.controls-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 20%, transparent 80%, rgba(0,0,0,0.7) 100%);
    transition: opacity 0.3s;
}
.controls-top {
    padding: 20px;
    flex-shrink: 0;
}
.video-title {
    color: white;
    font-size: 22px;
    font-weight: 600;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.8);
}
.controls-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.controls-center .control-btn {
    width: 100px;
    height: 100px;
    font-size: 50px;
    background: rgba(0, 0, 0, 0.7);
    border: 3px solid rgba(255, 255, 255, 0.9);
    color: white;
}
.controls-bottom {
    padding: 20px;
    background: rgba(0, 0, 0, 0.8);
}
.progress-container {
    margin-bottom: 15px;
}
.progress-bar {
    position: relative;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    cursor: pointer;
    margin-bottom: 10px;
}
.progress-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
}
.progress-filled {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, #ff4757, #ff6b81);
    border-radius: 4px;
    transition: width 0.1s;
}
.progress-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: #ff4757;
    border-radius: 50%;
    box-shadow: 0 3px 6px rgba(0,0,0,0.4);
    opacity: 0;
    transition: opacity 0.2s;
}
.progress-bar:hover .progress-thumb {
    opacity: 1;
}
.time-display {
    color: white;
    font-size: 16px;
    font-family: monospace;
    text-align: right;
    opacity: 0.9;
}
.controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.left-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}
.right-controls {
    display: flex;
    align-items: center;
}
.control-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.2s;
}
.control-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}
.control-btn:active {
    transform: scale(0.95);
}
.volume-control {
    display: flex;
    align-items: center;
    gap: 10px;
}
.volume-slider-container {
    width: 100px;
    opacity: 0;
    transition: opacity 0.2s;
}
.volume-control:hover .volume-slider-container {
    opacity: 1;
}
.volume-slider {
    width: 100%;
    height: 5px;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    outline: none;
}
.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: #ff4757;
    border-radius: 50%;
    cursor: pointer;
}
.volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: #ff4757;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}
@media (max-width: 768px) {
    .controls-center .control-btn {
        width: 80px;
        height: 80px;
        font-size: 40px;
    }
    .control-btn {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }
    .video-title {
        font-size: 18px;
    }
    .volume-slider-container {
        width: 80px;
    }
}
/* 视频切换消息样式 */
.video-message {
    margin: 20px auto;
    max-width: 800px;
    animation: fadeIn 0.3s ease;
}
.message-content {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 15px 25px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
    border-left: 5px solid #ff4757;
}
.message-content i {
    font-size: 1.3rem;
    flex-shrink: 0;
}
.message-content span {
    flex: 1;
    font-weight: 500;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 768px) {
    .video-message {
        margin: 15px;
    }
    .message-content {
        padding: 12px 20px;
        font-size: 1rem;
    }
}