/* 基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, sans-serif;
}

:root {
    --primary: #165DFF;
    --secondary: #FF7D00;
    --dark-100: #333333;
    --dark-200: #222222;
    --dark-300: #1A1A1A;
    --dark-400: #121212;
    --dark-500: #0F172A;
    --light-100: #FFFFFF;
    --light-200: #F5F5F5;
    --light-300: #E5E5E5;
    --light-400: #CCCCCC;
    --light-500: #999999;
}

body {
    background-color: var(--dark-400);
    color: var(--light-100);
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 头部导航 */
.header {
    background-color: var(--dark-500);

    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--light-300);
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

.search-bar {
    display: flex;
    flex: 0 0 300px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border-radius: 20px;
    background-color: var(--dark-300);
    border: 1px solid var(--dark-100);
    color: var(--light-200);
    outline: none;
    transition: all 0.3s;
}

.search-bar input:focus {
    border-color: var(--primary);
    background-color: var(--dark-200);
}

.search-bar i {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-500);
}

.user-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.user-actions i {
    font-size: 1.2rem;
    color: var(--light-300);
    cursor: pointer;
    transition: color 0.3s;
}

.user-actions i:hover {
    color: var(--primary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    cursor: pointer;.video-title
}

/* 标签样式 */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.tag {
    padding:0.2rem;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    background-color: var(--primary);
    color: white;
    border: 1px solid transparent;
}
.tags2 .tag{
    background-color: var(--dark-300);
    color: var(--light-300);
}
.tag:hover {
    background-color: var(--dark-300);
    color: var(--light-300);
}

.tag.active {
    background-color: var(--primary);
    color: white;
}

.tag i {
    margin-right: 0.3rem;
}

/* 首页样式 */
.hero-section {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 1rem;
    margin-bottom: 2rem;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 3rem;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.hero-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    color: var(--light-300);
}

.hero-desc {
    max-width: 700px;
    margin-bottom: 1.5rem;
    color: var(--light-200);
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.6rem 1.5rem;
    border-radius: 0.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: #0E4CD1;
}

.btn-secondary {
    background-color: rgba(255,255,255,0.2);
    color: white;
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.3);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-title a {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 500;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.video-card {
    border-radius: 0.5rem;
    overflow: hidden;
    background-color: var(--dark-300);
    transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.video-duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    background-color: rgba(0,0,0,0.8);
    padding: 0.1rem 0.5rem;
    border-radius: 0.2rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.video-info {
    padding: 0.2rem;
}

.video-title {
    font-weight: 600;
    line-height: 1.8em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 35px;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--light-500);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;

}

.pagination-btn {
    padding: 0.5rem 1rem;
    background-color: var(--dark-300);
    border-radius: 0.3rem;
    color: var(--light-200);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn:hover {
    background-color: var(--primary);
}

.pagination-btn.prev:disabled,
.pagination-btn.next:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--dark-300);
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination-number {
    width: 36px;
    height: 36px;
    border-radius: 0.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--dark-300);
    transition: all 0.3s;
}

.pagination-number:hover {
    background-color: var(--dark-200);
}

.pagination-number.active {
    background-color: var(--primary);
    color: white;
}

.pagination-ellipsis {
    color: var(--light-500);
    padding: 0 0.5rem;
}

/* 列表页样式 */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--dark-300);
}

.filter-options {
    display: flex;
    gap: 1rem;
}

.filter-select {
    background-color: var(--dark-300);
    color: var(--light-200);
    border: 1px solid var(--dark-100);
    padding: 0.4rem 1rem;
    border-radius: 0.3rem;
    outline: none;
    cursor: pointer;
}

.list-view {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.list-item {
    display: flex;
    gap: 1.5rem;
    background-color: var(--dark-300);
    border-radius: 0.5rem;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.list-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.list-thumbnail {
    flex: 0 0 300px;
    position: relative;
}

.list-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.list-info {
    flex: 1;
    padding: 1.5rem 1rem 1.5rem 0;
    display: flex;
    flex-direction: column;
}

.list-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.list-desc {
    color: var(--light-400);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.list-meta {
    margin-top: auto;
    display: flex;
    gap: 1.5rem;
    color: var(--light-500);
    font-size: 0.9rem;
}

/* 搜索页样式 */
.search-header {
    padding: 2rem 0;
    text-align: center;
}

.search-query {
    color: var(--primary);
}

.search-results-count {
    color: var(--light-500);
    margin: 0.5rem 0;
}

/* 播放页样式 */
.play-container {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.video-player {
    background-color: black;
    border-radius: 0.8rem;
    overflow: hidden;
    aspect-ratio: 16/9;
    position: relative;
}

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

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-player:hover .video-controls {
    opacity: 1;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: rgba(255,255,255,0.3);
    border-radius: 2px;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.progress {
    height: 100%;
    background-color: var(--primary);
    width: 35%;
}

.control-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.control-group {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.control-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1rem;
}

.video-title-large {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 1rem 0;
}

.video-meta-large {
    display: flex;
    gap: 1.5rem;
    color: var(--light-500);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--dark-300);
}

.video-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.video-description {
    background-color: var(--dark-300);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
}

.description-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--light-200);
}

.sidebar-title {
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-500);
    padding: 0.2rem;
    margin-top: 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-column h3 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--light-200);
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--light-500);
    transition: color 0.3s;
}

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

.copyright {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--dark-300);
    color: var(--light-500);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .play-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .search-bar {
        order: 4;
        flex: 1 0 100%;
    }
    
    .hero-section {
        height: 350px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .list-item {
        flex-direction: column;
    }
    
    .list-thumbnail {
        flex: 0 0 200px;
    }

    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    .nav-links {
        display: none;
    }
    
    .hero-overlay {
        padding: 1.5rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-desc {
        display: none;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }

    .pagination-numbers {
        display: none;
    }
}