/* ========================================
   完整响应式布局 - XVideos风格
======================================== */

/* 基础变量 */
:root {
    --container-desktop: 1200px;
    --container-tablet: 100%;
    --container-mobile: 100%;
}

/* ========================================
   容器
======================================== */
.container {
    max-width: var(--container-desktop);
    margin: 0 auto;
    padding: 0 15px;
}

/* ========================================
   导航栏
======================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 15px;
    max-width: var(--container-desktop);
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    white-space: nowrap;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-search {
    flex: 1;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: 8px 12px;
    transition: color 0.3s;
}

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

.mobile-menu-btn {
    display: none;
}

.language-switcher {
    position: relative;
}

/* ========================================
   视频网格（首页）
======================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.video-card {
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s;
    border: 1px solid var(--border);
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%; /* 16:9 */
    background: #000;
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.video-info {
    padding: 12px;
}

.video-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    color: var(--text-primary);
}

.video-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========================================
   视频播放页
======================================== */
.player-section {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 30px;
    border: 1px solid var(--border);
}

.player-wrapper {
    position: relative;
    padding-top: 56.25%;
    background: #000;
}

.player-wrapper video,
.player-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-info-section {
    padding: 30px;
}

.action-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 25px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}

.action-btn:hover {
    background: var(--bg-card);
    border-color: var(--primary);
}

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

/* ========================================
   分类标签
======================================== */
.category-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 5px;
}

.category-tabs::-webkit-scrollbar {
    display: none;
}

.category-tab {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-primary);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s;
    font-size: 14px;
}

.category-tab:hover,
.category-tab.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ========================================
   分页
======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.pagination a {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.pagination a:hover {
    background: var(--bg-secondary);
}

.pagination a.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-weight: bold;
}

/* ========================================
   评论区
======================================== */
.comments-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border);
}

.comment-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    resize: vertical;
    min-height: 100px;
}

/* ========================================
   平板端 (768px - 1024px)
======================================== */
@media (max-width: 1024px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .nav-container {
        gap: 15px;
    }
    
    .nav-menu {
        gap: 15px;
    }
    
    .nav-search {
        max-width: 400px;
    }
    
    .video-info-section {
        padding: 25px;
    }
}

/* ========================================
   手机横屏 (480px - 768px)
======================================== */
@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .video-info {
        padding: 10px;
    }
    
    .video-title {
        font-size: 13px;
    }
    
    .video-meta {
        font-size: 11px;
    }
    
    /* 导航栏折叠 */
    .nav-container {
        flex-wrap: wrap;
        position: relative;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .nav-search {
        order: 3;
        flex: 1 1 100%;
        max-width: 100%;
        margin-top: 10px;
    }
    
    .mobile-menu-btn {
        display: block;
        font-size: 24px;
        background: none;
        border: none;
        color: var(--text-primary);
        cursor: pointer;
        padding: 8px;
        margin-left: auto;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--border);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        display: block;
        padding: 15px 20px;
    }
    
    /* 视频播放页 */
    .video-info-section {
        padding: 20px;
    }
    
    .video-info-section .video-title {
        font-size: 22px;
    }
    
    .action-buttons {
        gap: 10px;
    }
    
    .action-btn {
        padding: 10px 18px;
        font-size: 13px;
    }
    
    /* 分类标签 */
    .category-tabs {
        gap: 8px;
        margin-bottom: 15px;
    }
    
    .category-tab {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    /* 分页 */
    .pagination {
        gap: 8px;
        margin-top: 30px;
    }
    
    .pagination a {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    /* 评论 */
    .comments-section {
        padding: 20px;
    }
}

/* ========================================
   手机竖屏 (<480px)
======================================== */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .video-info {
        padding: 8px;
    }
    
    .video-title {
        font-size: 12px;
        -webkit-line-clamp: 2;
    }
    
    .video-meta {
        font-size: 10px;
        gap: 8px;
    }
    
    .video-duration {
        font-size: 11px;
        padding: 2px 4px;
    }
    
    /* 导航 */
    .nav-container {
        padding: 10px;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .search-input {
        font-size: 14px;
        padding: 6px 10px;
    }
    
    .search-btn {
        padding: 6px 12px !important;
        font-size: 13px !important;
    }
    
    /* 视频播放页 */
    .video-info-section {
        padding: 15px;
    }
    
    .video-info-section .video-title {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .video-meta {
        gap: 15px;
        font-size: 12px;
    }
    
    .action-buttons {
        gap: 8px;
    }
    
    .action-btn {
        padding: 8px 14px;
        font-size: 12px;
        flex: 1;
        justify-content: center;
    }
    
    .action-btn span {
        display: none;
    }
    
    /* 分类 */
    .category-tabs {
        gap: 6px;
        margin-bottom: 12px;
    }
    
    .category-tab {
        padding: 5px 10px;
        font-size: 12px;
    }
    
    /* 分页 */
    .pagination {
        gap: 6px;
        margin-top: 20px;
    }
    
    .pagination a {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    /* 评论 */
    .comments-section {
        padding: 15px;
    }
    
    .comment-form textarea {
        padding: 10px;
        font-size: 14px;
    }
}

/* ========================================
   语言切换器响应式
======================================== */
@media (max-width: 768px) {
    .language-switcher {
        margin-left: 0;
    }
    
    .lang-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .lang-dropdown {
        right: 0;
        left: auto;
    }
}

/* ========================================
   视频播放页额外优化
======================================== */

/* 相关视频列表 */
.related-videos-section {
    margin-top: 40px;
}

.related-videos-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

/* 演员列表 */
.actors-list {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.actor-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s;
}

.actor-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.actor-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* 标签云 */
.tags-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag-item {
    padding: 6px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    font-size: 13px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.tag-item:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* 手机端视频播放页优化 */
@media (max-width: 768px) {
    .related-videos-title {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .actor-card {
        padding: 10px;
        gap: 10px;
    }
    
    .actor-avatar {
        width: 50px;
        height: 50px;
    }
    
    .tags-list {
        gap: 8px;
    }
    
    .tag-item {
        padding: 5px 12px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .related-videos-section {
        margin-top: 30px;
    }
    
    .related-videos-title {
        font-size: 16px;
    }
    
    .actor-card {
        flex: 1 1 calc(50% - 8px);
        min-width: 150px;
    }
    
    .tags-list {
        gap: 6px;
    }
    
    .tag-item {
        padding: 4px 10px;
        font-size: 11px;
    }
}

/* ========================================
   搜索页面响应式
======================================== */
.search-results-header {
    margin-bottom: 30px;
}

.search-results-header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.search-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-select {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .search-results-header h1 {
        font-size: 22px;
    }
    
    .search-filters {
        gap: 10px;
    }
    
    .filter-select {
        flex: 1;
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .search-results-header h1 {
        font-size: 18px;
    }
    
    .search-filters {
        gap: 8px;
    }
    
    .filter-select {
        font-size: 13px;
        padding: 6px 12px;
    }
}

/* ========================================
   演员页面响应式
======================================== */
.actors-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.actor-item {
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
}

.actor-item-avatar {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 10px;
    border: 2px solid var(--border);
    transition: all 0.3s;
}

.actor-item:hover .actor-item-avatar {
    border-color: var(--primary);
    transform: scale(1.05);
}

@media (max-width: 1024px) {
    .actors-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .actors-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .actors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

/* ========================================
   会员页面响应式
======================================== */
.membership-plans {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.plan-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.plan-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.plan-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(var(--primary-rgb), 0.1) 100%);
}

@media (max-width: 1024px) {
    .membership-plans {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .membership-plans {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }
    
    .plan-card {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .plan-card {
        padding: 20px;
    }
}