/* Douyin CMS - 主样式表 */

:root {
    --primary: #fe2c55;
    --primary-dark: #e0264a;
    --secondary: #25f4ee;
    --bg: #f5f7fa;
    --card-bg: #ffffff;
    --text: #1a1a1a;
    --text-light: #666666;
    --text-muted: #999999;
    --border: #e8e8e8;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
    --radius: 12px;
    --header-height: 64px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}

.header .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

.logo:hover {
    color: var(--primary);
}

.logo-icon {
    font-size: 24px;
}

.nav {
    display: flex;
    gap: 4px;
    flex: 1;
    overflow-x: auto;
}

.nav a {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    color: var(--text-light);
}

.nav a:hover, .nav a.active {
    background: rgba(254, 44, 85, 0.08);
    color: var(--primary);
}

.search-box form {
    display: flex;
    align-items: center;
    background: var(--bg);
    border-radius: 20px;
    padding: 4px;
}

.search-box input {
    border: none;
    background: transparent;
    padding: 8px 16px;
    font-size: 14px;
    width: 180px;
    outline: none;
}

.search-box button {
    background: var(--primary);
    border: none;
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
}

/* Main */
.main {
    min-height: calc(100vh - var(--header-height) - 200px);
    padding: 30px 0;
}

/* Page Title */
.page-title {
    margin-bottom: 24px;
}

.page-title h1 {
    font-size: 24px;
    font-weight: 700;
}

.page-title p {
    color: var(--text-light);
    margin-top: 4px;
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.video-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.video-card .cover {
    position: relative;
    aspect-ratio: 9/16;
    overflow: hidden;
    background: #000;
}

.video-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .cover img {
    transform: scale(1.05);
}

.video-card .cover .duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.video-card .cover .play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background: rgba(254, 44, 85, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.video-card:hover .cover .play-icon {
    opacity: 1;
}

.video-card .cover .play-icon::after {
    content: '';
    border-style: solid;
    border-width: 10px 0 10px 16px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.video-card .info {
    padding: 12px;
}

.video-card .info h3 {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.video-card .info .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}

.video-card .info .meta .likes {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Category Tags */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.category-tags a {
    padding: 6px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-light);
    transition: all 0.2s;
}

.category-tags a:hover, .category-tags a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* Video Detail */
.video-detail {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 30px;
    align-items: start;
}

.video-player {
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 9/16;
    max-height: 80vh;
}

.video-player video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-info {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.video-info h1 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.video-info .stats {
    display: flex;
    gap: 16px;
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.video-info .desc {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.video-info .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.video-info .tags a {
    padding: 4px 12px;
    background: var(--bg);
    border-radius: 16px;
    font-size: 12px;
    color: var(--text-light);
}

.video-info .tags a:hover {
    background: var(--primary);
    color: #fff;
}

.video-info .author {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.video-info .author img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.video-info .author .name {
    font-weight: 500;
    font-size: 14px;
}

/* Share Buttons */
.share-bar {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.share-bar button {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.share-bar button:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.pagination a {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-light);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination span.active {
    background: var(--primary);
    color: #fff;
}

.pagination span:not(.active) {
    color: var(--text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 8px;
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 40px 0 20px;
    margin-top: 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.footer-info h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.footer-info p {
    color: var(--text-light);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 20px;
        gap: 10px;
    }
    
    .nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
    }
    
    .search-box {
        flex: 1;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .video-detail {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
}

/* Toast */
.toast {
    position: fixed;
    top: 80px;
    right: 20px;
    background: #333;
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}