.video-container {
    position: relative;
    width: 100%;
    margin: 20px auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); transition: all 0.3s ease;
}
video {
    width: 100%;
    max-height: 420px;
    display: block;
}
.main-btn{
    position: absolute;
    width: 100px;
    height: 100px;
    text-align: center;
    line-height: 100px;
    background-color: rgb(10 95 68 / 0.3);
    border-radius: 50%; 
    top: 50%;
    left: 50%;
    margin-top: -50px;
    margin-left: -50px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 1;
}
.main-btn i{
    color: #fff;
    font-size: 60px;
}
.controls-container {
    position: absolute;
    bottom: 0px;
    left: 0px;
    right: 0px;
    padding: 10px 15px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    transition: opacity 0.3s;
}
.progress-bar {
    height: 5px;
    background: rgba(255,255,255,0.2);
    margin-bottom: 10px;
    position: relative;
    cursor: pointer;
}
.progress, .buffered {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
}
.progress {
    background: #ff4757;
    width: 0;
}
.buffered {
    background: rgba(255,255,255,0.3);
    width: 0;
}
.main-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}
button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 18px;
}
.volume-btn{
    cursor: default;
}
.play-btn i, .volume-btn i, .fullscreen-btn i{
    font-size: 24px;
}
.time-display {
    color: white;
    font-family: monospace;
    flex-grow: 1;
}
.time-display .current-time, .time-display .duration{
    font-size: 14px;
    font-family:  'Microsoft YaHei';
}
.volume-slider {
    width: 80px;
}
.time-tooltip {
    position: absolute;
    top: -30px;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 3px 6px;
    border-radius: 3px;
    font-size: 12px;
    display: none;
}
@media screen and (max-width: 768px) {
    .main-btn{
        width: 50px;
        height: 50px;
        line-height: 50px;
        margin-top: -25px;
        margin-left: -25px;
    }
    .main-btn i{
        color: #fff;
        font-size: 30px;
    }
}