/* ========================================
   大风视频 - 主样式文件
   深色主题视频网站样式
   ======================================== */

/* CSS 变量 */
:root {
    --primary-color: #ff6b6b;
    --primary-hover: #ff5252;
    --bg-dark: #0f0f0f;
    --bg-card: #1a1a1a;
    --bg-hover: #252525;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: #333333;
    --accent-color: #ff6b6b;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --transition: all 0.3s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   头部导航
   ======================================== */
.header {
    background: linear-gradient(180deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.7) 100%);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: 30px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    flex-shrink: 0;
}

.logo-icon {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: center;
}

.nav-item {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 15px;
    color: var(--text-secondary);
    transition: var(--transition);
    white-space: nowrap;
}

.nav-item:hover,
.nav-item.active {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 4px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary-color);
}

.search-input {
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 8px 12px;
    width: 200px;
    font-size: 14px;
    outline: none;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    padding: 8px 12px;
    color: var(--text-secondary);
    font-size: 16px;
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: var(--text-primary);
    padding: 8px;
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 10px;
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-item {
    display: block;
    padding: 12px 20px;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    margin-bottom: 4px;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* ========================================
   轮播图
   ======================================== */
.banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
}

/* Banner背景渐变 */
.banner-slide:nth-child(1) {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.banner-slide:nth-child(2) {
    background: linear-gradient(135deg, #2c1810 0%, #1a0f0a 50%, #0d0805 100%);
}

.banner-slide:nth-child(3) {
    background: linear-gradient(135deg, #ff4500 0%, #8b0000 50%, #2f0000 100%);
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.banner-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 60px 20px 40px;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
    max-width: 1400px;
    margin: 0 auto;
    z-index: 2;
}

.banner-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 12px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.banner-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 600px;
}

.banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

.banner-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-color);
    width: 30px;
    border-radius: 5px;
}

/* ========================================
   主要内容区
   ======================================== */
.main-content {
    padding: 40px 0;
}

.section {
    margin-bottom: 50px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 600;
}

.title-icon {
    font-size: 22px;
}

.more-link {
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}

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

/* 视频网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.video-card {
    position: relative;
    min-width: 0;
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-5px);
}

.video-link {
    display: block;
}

/* 视频缩略图使用CSS渐变背景 */
.video-thumb {
    position: relative;
    width: 100%;
    padding-bottom: 150%;
    height: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

/* 为不同卡片设置不同的渐变背景 */
.video-card:nth-child(6n+1) .video-thumb {
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
}

.video-card:nth-child(6n+2) .video-thumb {
    background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
}

.video-card:nth-child(6n+3) .video-thumb {
    background: linear-gradient(135deg, #ff4500 0%, #8b0000 100%);
}

.video-card:nth-child(6n+4) .video-thumb {
    background: linear-gradient(135deg, #4a4a4a 0%, #2a2a2a 100%);
}

.video-card:nth-child(6n+5) .video-thumb {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

.video-card:nth-child(6n+6) .video-thumb {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
    transition: var(--transition);
}

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

.video-tag {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 8px;
    background: rgba(0,0,0,0.8);
    color: var(--primary-color);
    font-size: 12px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.video-card:hover .video-overlay {
    opacity: 1;
}

.play-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    padding-left: 4px;
    transition: var(--transition);
}

.play-icon:hover {
    transform: scale(1.1);
    background: var(--primary-hover);
}

.video-info {
    padding: 12px 4px;
}

.video-title {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.video-meta {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   页面头部
   ======================================== */
.page-header {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-hover) 100%);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 12px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.separator {
    color: var(--text-muted);
}

.current {
    color: var(--text-primary);
}

/* ========================================
   筛选栏
   ======================================== */
.filter-section {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.filter-bar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.filter-group {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.filter-label {
    color: var(--text-secondary);
    font-size: 14px;
    white-space: nowrap;
    padding-top: 6px;
    min-width: 50px;
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-option {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.filter-option:hover,
.filter-option.active {
    color: var(--primary-color);
    background: rgba(255,107,107,0.1);
}

.sort-options {
    display: flex;
    gap: 16px;
}

.sort-option {
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.sort-option:hover,
.sort-option.active {
    color: var(--primary-color);
}

/* ========================================
   分页
   ======================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn,
.page-num {
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.page-btn:hover:not(.disabled),
.page-num:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.page-num.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-ellipsis {
    color: var(--text-muted);
    padding: 0 8px;
}

/* ========================================
   详情页
   ======================================== */
.detail-page {
    padding-top: 20px;
}

.detail-section {
    margin-bottom: 40px;
}

.detail-main {
    display: flex;
    gap: 40px;
}

.detail-poster {
    position: relative;
    width: 300px;
    flex-shrink: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 2/3;
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
}

.detail-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.poster-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.detail-poster:hover .poster-overlay {
    opacity: 1;
}

.play-btn-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 40px;
    background: var(--primary-color);
    border-radius: var(--radius-lg);
    color: white;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

.play-btn-large:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.play-icon-large {
    font-size: 40px;
}

.detail-info {
    flex: 1;
}

.detail-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 16px;
}

.detail-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.meta-item {
    color: var(--text-secondary);
    font-size: 14px;
}

.meta-separator {
    color: var(--text-muted);
}

.detail-rating {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 20px;
}

.rating-score {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
}

.rating-total {
    font-size: 18px;
    color: var(--text-muted);
}

.rating-count {
    font-size: 14px;
    color: var(--text-secondary);
    margin-left: 8px;
}

.detail-desc {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.detail-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* 剧集列表 */
.episode-section {
    margin-bottom: 40px;
}

.episode-tabs {
    display: flex;
    gap: 8px;
}

.episode-tab {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.episode-tab:hover,
.episode-tab.active {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: rgba(255,107,107,0.1);
}

.episode-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.episode-item {
    width: 60px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* ========================================
   播放页
   ======================================== */
.play-page {
    background: #000;
}

.play-page .header {
    background: rgba(0,0,0,0.9);
}

.player-section {
    background: #000;
    padding: 20px 0;
}

.player-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.video-player {
    position: relative;
    aspect-ratio: 16/9;
    background: #111;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.player-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-icon {
    font-size: 80px;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.placeholder-sub {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 10px;
}

.player-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
}

.progress-bar {
    position: relative;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    margin-bottom: 12px;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
}

.progress-handle {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.progress-bar:hover .progress-handle {
    opacity: 1;
}

.controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.controls-left,
.controls-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.control-btn {
    color: white;
    font-size: 18px;
    padding: 8px;
    transition: var(--transition);
}

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

.time-display {
    color: var(--text-secondary);
    font-size: 14px;
    margin-left: 8px;
}

/* 播放信息 */
.play-info-section {
    background: var(--bg-dark);
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
}

.play-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 12px;
}

.play-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.play-tag {
    padding: 4px 10px;
    background: var(--primary-color);
    color: white;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

.play-views,
.play-time {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 视频介绍 */
.play-desc {
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
}

.play-desc p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

.play-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
}

.action-btn:hover,
.action-btn.active {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: rgba(255,107,107,0.1);
}

/* 播放内容布局 */
.play-content {
    padding: 30px 0;
}

.play-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 30px;
}

.play-sidebar {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.episode-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.episode-header h3 {
    font-size: 18px;
}

.episode-tabs {
    display: flex;
    gap: 8px;
}

.ep-tab {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-hover);
    transition: var(--transition);
}

.ep-tab:hover,
.ep-tab.active {
    color: var(--primary-color);
    background: rgba(255,107,107,0.1);
}

.episode-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
}

.ep-item {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.ep-item:hover,
.ep-item.active {
    background: var(--primary-color);
    color: white;
}

/* 播放页推荐 */
.play-recommend {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.recommend-title {
    font-size: 18px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.recommend-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recommend-item {
    display: flex;
    gap: 12px;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.recommend-item:hover {
    background: var(--bg-hover);
}

.recommend-thumb {
    position: relative;
    width: 120px;
    aspect-ratio: 3/4;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.recommend-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.recommend-ep {
    position: absolute;
    bottom: 4px;
    right: 4px;
    padding: 2px 6px;
    background: rgba(0,0,0,0.8);
    color: white;
    font-size: 11px;
    border-radius: var(--radius-sm);
}

.recommend-info {
    flex: 1;
    min-width: 0;
}

.recommend-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recommend-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========================================
   底部 - 全新排版
   ======================================== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

/* 关于我们 - 第一列 */
.footer-section.about-section {
    grid-column: 1;
}

.footer-section.about-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 10px;
}

.footer-section.about-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.footer-section.about-section p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
}

/* 通用栏目样式 */
.footer-column h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 10px;
    font-weight: 600;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: var(--transition);
    display: inline-block;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

/* 关注我们 - 特殊样式 */
.footer-column.follow-section .social-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column.follow-section .social-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-column.follow-section .social-icon {
    width: 28px;
    height: 28px;
    background: var(--bg-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .play-layout {
        grid-template-columns: 1fr 300px;
    }
    
    .footer-content {
        gap: 40px;
    }
}

@media (max-width: 992px) {
    .video-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .detail-main {
        flex-direction: column;
        align-items: center;
    }
    
    .detail-poster {
        width: 250px;
    }
    
    .detail-title {
        font-size: 28px;
        text-align: center;
    }
    
    .detail-meta,
    .detail-rating {
        justify-content: center;
    }
    
    .detail-desc {
        text-align: center;
    }
    
    .detail-actions {
        justify-content: center;
    }
    
    .play-layout {
        grid-template-columns: 1fr;
    }
    
    .play-recommend {
        order: -1;
    }
    
    /* 底部响应式 - 平板 */
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .footer-section.about-section {
        grid-column: 1 / -1;
        text-align: center;
    }
    
    .footer-section.about-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    /* 平板端图片优化 - 使用基础 padding-bottom 方案，不添加冲突的 aspect-ratio */
    
    .banner {
        height: 350px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-desc {
        font-size: 15px;
    }
    
    .search-box {
        display: none;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .filter-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .filter-label {
        padding-top: 0;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .episode-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    /* 底部响应式 - 手机 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .footer-section.about-section {
        grid-column: 1 / -1;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column h4::after {
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
    
    .footer-column.follow-section .social-links {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    /* 移动端图片优化 - 使用基础 padding-bottom 方案，不添加冲突的 aspect-ratio */
    
    .video-title {
        font-size: 13px;
    }
    
    .video-meta {
        font-size: 11px;
    }
    
    .video-tag {
        font-size: 9px;
        padding: 2px 4px;
    }
    
    .banner {
        height: 280px;
    }
    
    .banner-title {
        font-size: 22px;
    }
    
    .banner-desc {
        font-size: 13px;
    }
    
    .container {
        padding: 0 12px;
    }
    
    .logo-text {
        display: none;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .detail-poster {
        width: 200px;
    }
    
    .detail-title {
        font-size: 22px;
    }
    
    .btn {
        padding: 10px 18px;
        font-size: 14px;
    }
    
    .episode-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .page-btn,
    .page-num {
        padding: 8px 12px;
        font-size: 13px;
    }
}

/* ========================================
   动画效果
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 选中文字样式 */
::selection {
    background: var(--primary-color);
    color: white;
}

/* 平板/窄窗口下导航横向滚动，避免栏目名被压缩成竖排 */
@media (max-width: 1199px) {
  .nav-menu {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex-wrap: nowrap;
  }
  .nav-menu::-webkit-scrollbar {
    display: none;
  }
  .nav-menu a {
    white-space: nowrap;
  }
}