/**
 * 视频列表页：X 平台式信息流
 * 每条内容直接展示标题、可播放视频、文字介绍与标签
 */
.video-list-main .video-layout {
    margin-top: 0;
}
.video-breadcrumb-title {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: inherit;
    color: var(--c-text-2, #475569);
    display: inline;
}
.video-feed-list {
    display: flex;
    flex-direction: column;
}
.video-feed-item {
    padding: 24px 0 28px;
    border-bottom: 1px solid var(--c-line, #e2e8f0);
}
.video-feed-item:first-child {
    padding-top: 4px;
}
.video-feed-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.video-feed-title {
    margin: 0 0 6px;
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--c-text, #1e293b);
}
.video-feed-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}
.video-feed-title a:hover {
    color: var(--c-accent, #2563eb);
}
.video-feed-time {
    margin: 0 0 12px;
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--c-text-3, #94a3b8);
}
.video-feed-media {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: transparent;
    line-height: 0;
}
.video-feed-player {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: transparent;
    object-fit: cover;
}
.video-player-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16 / 9;
    padding: 20px;
    background: #0f172a;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.875rem;
    text-align: center;
}
.video-player-fallback i {
    margin-right: 6px;
}
.video-feed-fallback {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #0f172a;
    color: #fff;
    text-decoration: none;
}
.video-feed-fallback img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.82;
    transition: transform 0.35s ease, opacity 0.2s ease;
}
.video-feed-fallback:hover img {
    transform: scale(1.03);
    opacity: 1;
}
.video-feed-fallback-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.video-feed-fallback-play i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-size: 1.125rem;
    backdrop-filter: blur(4px);
}
.video-feed-desc {
    display: block;
    margin: 12px 0 0;
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--c-text-2, #475569);
}
.video-feed-desc a {
    color: var(--c-accent, #2563eb);
    text-decoration: none;
    word-break: break-all;
}
.video-feed-desc a:hover {
    text-decoration: underline;
}
.video-feed-desc-wrap {
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.video-feed-desc-toggle {
    display: inline-block;
    margin-top: 6px;
    padding: 0;
    border: 0;
    background: none;
    font-size: 0.84rem;
    color: var(--c-accent, #2563eb);
    cursor: pointer;
}
.video-feed-desc-toggle:hover {
    text-decoration: underline;
}
.video-feed-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0 12px;
    margin-top: 10px;
    font-size: 0.78rem;
    max-height: 1.6em;
    overflow: hidden;
}
.video-feed-tags span {
    flex: 0 0 auto;
    font-size: 0.78rem;
    line-height: 1.6;
    white-space: nowrap;
    color: var(--c-text-3, #94a3b8);
}
.video-feed-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
    font-size: 0.78rem;
    color: var(--c-text-3, #94a3b8);
}
.video-feed-actions i {
    margin-right: 4px;
    opacity: 0.7;
}
@media (max-width: 640px) {
    .video-page-crumb {
        margin-bottom: 0;
    }
    .video-page-crumb > a,
    .video-page-crumb > .breadcrumb-sep {
        display: none;
    }
    .video-breadcrumb-title {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        clip-path: inset(50%);
        white-space: nowrap;
        border: 0;
    }
    .video-feed-item {
        padding: 20px 0 22px;
    }
    .video-feed-media,
    .video-feed-fallback,
    .video-player-fallback {
        border-radius: 0;
    }
    .video-feed-title {
        font-size: 1.0625rem;
        white-space: nowrap;
        overflow: hidden;
    }
    .video-feed-title a {
        display: block;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .video-feed-desc {
        display: none;
    }
    .video-feed-tags {
        display: none;
    }
    .video-sidebar {
        display: none;
    }
}
html.io-dark-mode .video-feed-item {
    border-bottom-color: var(--c-line, rgba(185, 203, 226, 0.16));
}