a {
    text-decoration: none;
    color: inherit;
}

img, video {
    max-width: 100%;
    display: block;
}

/* 主容器 限制最大宽度1560px */
.videos-download-wrapper {
    max-width: 1560px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* 页面标题区域 */
.videos-page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.videos-page-header h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 0.8rem;
    background: linear-gradient(90deg, #0891b2, #06b6d4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.videos-page-header p {
    color: #64748b;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    max-width: 700px;
    margin: 0 auto;
}

/* 分类筛选栏 - 移动端单行横向滚动，支持当前项居中 */
.videos-filter-bar {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.75rem;
    justify-content: flex-start;
    margin-bottom: 2.5rem;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.5rem;
    scrollbar-width: none;
}

.videos-filter-bar::-webkit-scrollbar {
    display: none;
}

@media (min-width: 769px) {
    .videos-filter-bar {
        justify-content: center;
        flex-wrap: wrap;
        overflow-x: visible;
    }
}

/* 筛选按钮a标签，固定宽高180px*80px */
.videos-filter-link {
    width: 175px;
    height: 80px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: #f8fafc;
    backdrop-filter: blur(10px);
    border-radius: 12px;
    color: #1e293b;
    transition: all 0.3s ease;
    font-size: 15px;
    text-align: center;
}

.videos-filter-link.videos-active, .videos-filter-link:hover {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 0 16px rgba(6, 182, 212, 0.25);
}

/* 视频卡片网格 */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.8rem;
    margin-bottom: 3rem;
}

.videos-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.videos-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(6, 182, 212, 0.14);
}

.videos-card-preview {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.videos-card-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.videos-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(6, 182, 212, 0.9);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: scale 0.25s ease;
}

.videos-play-icon svg {
    width: 18px;
    fill: white;
}

.videos-card-preview:hover .videos-play-icon {
    scale: 1.12;
}

.videos-card-info {
    padding: 1.2rem;
}

.videos-card-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0;
    color: #0f172a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 空状态 */
.videos-empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: #64748b;
    font-size: 1.05rem;
}

/* 分页样式 - 按钮纯白背景 */
.videos-pagination-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
}

.videos-page-btn {
    min-width: 41px;
    height: 38px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: #ffffff;
    border-radius: 10px;
    color: #0f172a;
    cursor: pointer;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.videos-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
    background: #ffffff;
}

.videos-page-btn.videos-active {
    background: linear-gradient(135deg, #0891b2, #06b6d4);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 12px rgba(6, 182, 212, 0.2);
}

.videos-page-btn:not(:disabled):hover {
    border-color: #06b6d4;
    color: #0891b2;
    background: #ffffff;
}

.videos-page-dot {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    color: #64748b;
    font-weight: 600;
}

/* 预览弹窗遮罩 */
.videos-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    display: grid;
    place-items: center;
    padding: 1.5rem;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.videos-modal-overlay.videos-open {
    opacity: 1;
    visibility: visible;
}

.videos-modal-box {
    width: 100%;
    max-width: 720px;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.videos-modal-overlay.videos-open .videos-modal-box {
    transform: translateY(0);
}

.videos-modal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.videos-modal-head h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
}

.videos-close-modal {
    background: transparent;
    border: none;
    color: #64748b;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    transition: background 0.2s;
}

.videos-close-modal:hover {
    background: rgba(6, 182, 212, 0.1);
    color: #0891b2;
}

.videos-modal-video-wrap {
    padding: 1.5rem;
}

.videos-modal-video {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #000000;
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .videos-filter-link {
        width: 150px;
        height: 70px;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .videos-download-wrapper {
        padding: 2.5rem 1rem;
    }

    .videos-filter-bar {
        gap: 0.5rem;
    }

    .videos-filter-link {
        width: 130px;
        height: 64px;
        font-size: 0.8rem;
    }

    .videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1.2rem;
    }

    .videos-page-btn {
        min-width: 38px;
        height: 38px;
    }

    .videos-page-dot {
        width: 38px;
        height: 38px;
    }
}

@media (max-width: 480px) {
    .videos-filter-link {
        width: 130px;
        height: 60px;
    }

    .videos-grid {
        grid-template-columns: 1fr;
    }

    .videos-modal-head {
        padding: 1rem;
    }

    .videos-modal-video-wrap {
        padding: 1rem;
    }

    .videos-pagination-wrap {
        flex-wrap: wrap;
    }
}