/**
 * 视频模块 — 公共样式
 *
 * @package huoqiao
 * @description CSS 变量定义 + 视频分类页样式
 *              首页小工具样式见 video-showcase.css
 */

/* ========================================
   设计令牌
   ======================================== */
:root {
    --video-brand: #5E6AD2;
    --video-brand-hover: #4A54C4;
    --video-brand-rgb: 94, 106, 210;

    --video-bg-dark: #0d0d12;
    --video-bg-card: #1a1a24;
    --video-bg-overlay: rgba(0, 0, 0, 0.45);

    --video-text-primary: rgba(255, 255, 255, 0.92);
    --video-text-secondary: rgba(255, 255, 255, 0.65);
    --video-text-muted: rgba(255, 255, 255, 0.40);

    --video-radius-sm: 8px;
    --video-radius-md: 12px;
    --video-radius-lg: 16px;

    --video-transition: var(--hover-duration, 0.35s) var(--hover-easing, cubic-bezier(0.34, 1.56, 0.64, 1));
}

/* ========================================
   视频分类页
   ======================================== */
.video-category-page {
    max-width: var(--page-width, 1450px);
    margin: 0 auto;
    padding: 0 var(--container-padding, 20px);
}

.video-category-header {
    margin-bottom: 32px;
    padding: 40px 0 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.video-category-header .category-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px;
}

.video-category-header .category-desc {
    font-size: 14px;
    color: var(--color-text-tertiary);
    margin: 0 0 16px;
    line-height: 1.6;
}

.video-category-header .category-count {
    font-size: 13px;
    color: var(--color-text-muted);
}

.video-subcategories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.video-subcategory-link {
    display: inline-block;
    padding: 6px 16px;
    font-size: 13px;
    border-radius: 20px;
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--video-transition);
}

.video-subcategory-link:hover,
.video-subcategory-link.active {
    background: var(--video-brand);
    color: #fff;
}

.video-grid-wrapper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding-bottom: 40px;
}

.video-grid-item {
    border-radius: var(--video-radius-md);
    overflow: hidden;
    background: var(--color-bg-elevated);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: transform var(--video-transition),
                box-shadow var(--video-transition);
    cursor: pointer;
}

.video-grid-item:hover {
    transform: var(--hover-lift, translateY(-4px)) var(--hover-scale, scale(1.02));
    box-shadow: var(--hover-shadow, 0 12px 32px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.06));
}

.video-grid-cover {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
    background: #e5e7eb;
}

.video-grid-cover img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--hover-duration, 0.35s) var(--hover-easing, cubic-bezier(0.34, 1.56, 0.64, 1));
}

.video-grid-item:hover .video-grid-cover img {
    transform: var(--thumb-hover-scale, scale(1.08));
}

.video-grid-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
}

.video-grid-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity var(--video-transition);
}

.video-grid-item:hover .video-grid-play { opacity: 1; }

.video-grid-play svg {
    width: 48px;
    height: 48px;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.video-grid-info { padding: 12px 14px; }

.video-grid-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-grid-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.video-grid-category {
    color: var(--video-brand);
    font-weight: 500;
}

@media (max-width: 1024px) {
    .video-grid-wrapper { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .video-category-page { padding: 0 12px; }
    .video-grid-wrapper { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .video-category-header .category-title { font-size: 22px; }
}

@media (max-width: 480px) {
    .video-grid-wrapper { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .video-grid-title { font-size: 13px; }
    .video-grid-info { padding: 8px 10px; }
}