/* 全幅背景 */
.video-fullwidth {
    width: 100%;
    background-color: #f9fafb;
    border-radius: 24px;
    margin: 24px 0;
}
.video-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
    box-sizing: border-box;
}
.video-title {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    font-size: 28px;
    color: #333333;
    text-align: center;
    margin-bottom: 10px;
}
.video-sub {
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    font-size: 14px;
    color: #555555;
    text-align: center;
    margin-bottom: 20px;
}
.video-wrapper {
    position: relative;
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.video-player {
    width: 100%;
    height: auto;
    display: block;
}
@media (max-width: 768px) {
    .video-inner {
        padding: 20px 16px;
    }
    .video-title {
        font-size: 24px;
        margin-bottom: 8px;
    }
    .video-sub {
        font-size: 13px;
        margin-bottom: 16px;
    }
}