/* ===== 003模板 - 霓虹科技风格 ===== */

/* 基础重置和变量 */
:root {
    /* 主色调 */
    --primary-color: #00ffff;
    --secondary-color: #ff00ff;
    --accent-color: #ffff00;
    --success-color: #00ff00;
    --warning-color: #ff8800;
    --error-color: #ff0040;
    
    /* 背景色 */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --bg-card: rgba(26, 26, 26, 0.8);
    --bg-overlay: rgba(0, 0, 0, 0.8);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --text-accent: var(--primary-color);
    
    /* 边框和阴影 */
    --border-color: rgba(0, 255, 255, 0.3);
    --border-glow: 0 0 10px rgba(0, 255, 255, 0.5);
    --shadow-primary: 0 0 20px rgba(0, 255, 255, 0.3);
    --shadow-secondary: 0 0 15px rgba(255, 0, 255, 0.3);
    
    /* 字体 */
    --font-primary: 'Rajdhani', sans-serif;
    --font-accent: 'Orbitron', monospace;
    
    /* 动画 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body.loaded {
    animation: pageLoad 0.8s ease-out;
}

@keyframes pageLoad {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 背景动画 */
.cyber-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.grid-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: float linear infinite;
    box-shadow: 0 0 6px var(--primary-color);
}

@keyframes float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

/* 头部导航 */
.cyber-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--border-glow);
}

.header-container {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.header-logo {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-normal);
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 24px;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.logo-text {
    font-family: var(--font-accent);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo-accent {
    color: var(--secondary-color);
    text-shadow: 0 0 10px var(--secondary-color);
}

.header-search {
    flex: 1;
    max-width: 500px;
    margin: 0 20px;
}

.search-wrapper {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    height: 40px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0 50px 0 20px;
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--border-glow);
    background: rgba(26, 26, 26, 0.95);
}

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

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50%;
    color: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
}

.header-menu {
    flex-shrink: 0;
}

.menu-toggle {
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: var(--transition-normal);
}

.menu-toggle:hover {
    border-color: var(--primary-color);
    box-shadow: var(--border-glow);
}

.menu-line {
    width: 20px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
    box-shadow: 0 0 5px var(--primary-color);
}

.menu-toggle:hover .menu-line {
    box-shadow: 0 0 10px var(--primary-color);
}

/* 侧边栏 */
.cyber-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    visibility: hidden;
    opacity: 0;
    transition: var(--transition-normal);
}

.cyber-sidebar.active {
    visibility: visible;
    opacity: 1;
}

.sidebar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    backdrop-filter: blur(5px);
}

.sidebar-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.95), rgba(26, 26, 26, 0.95));
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-color);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    transform: translateX(100%);
    transition: var(--transition-normal);
}

.cyber-sidebar.active .sidebar-content {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
    font-family: var(--font-accent);
    font-size: 18px;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.sidebar-close {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-close:hover {
    border-color: var(--error-color);
    color: var(--error-color);
    box-shadow: 0 0 10px rgba(255, 0, 64, 0.3);
}

.sidebar-menu {
    padding: 20px 0;
    height: calc(100% - 80px);
    overflow-y: auto;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    border-left: 3px solid transparent;
}

.menu-item:hover {
    color: var(--text-primary);
    background: rgba(0, 255, 255, 0.1);
    border-left-color: var(--primary-color);
}

.menu-item.active {
    color: var(--primary-color);
    background: rgba(0, 255, 255, 0.15);
    border-left-color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.menu-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.menu-text {
    font-size: 14px;
    font-weight: 500;
}

.menu-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.menu-item:hover .menu-glow,
.menu-item.active .menu-glow {
    opacity: 1;
}

/* 主要内容区域 */
.cyber-main {
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    padding-bottom: 80px;
}

/* 页面标题 */
.cyber-page-header {
    position: relative;
    padding: 40px 16px;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), rgba(255, 0, 255, 0.1));
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

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

.title-text {
    font-family: var(--font-accent);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.title-accent {
    font-family: var(--font-accent);
    font-size: 16px;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
    opacity: 0.8;
}

.page-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-family: var(--font-accent);
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.header-bg-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* 特色推荐区域 */
.cyber-featured {
    padding: 20px 16px; /* 改为padding，与播放器保持一致 */
    background: var(--bg-primary);
}

.featured-container {
    max-width: 1200px; /* 与播放器容器相同宽度 */
    margin: 0 auto; /* 与播放器容器相同居中方式 */
    position: relative;
    border-radius: 12px; /* 与播放器相同的圆角 */
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3); /* 与播放器相同的阴影效果 */
}

.featured-content {
    display: flex;
    height: auto; /* 改为自动高度，由图片区域控制 */
}

.featured-image {
    flex: 1;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9; /* 与播放器相同的16:9比例 */
}

.featured-bg {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保持图片比例，裁剪超出部分 */
    transition: var(--transition-slow);
}

.featured-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 0, 0, 0.7), rgba(0, 255, 255, 0.2));
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.6);
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.8);
}

.featured-info {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(45deg, var(--accent-color), var(--warning-color));
    color: var(--bg-primary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    width: fit-content;
}

.featured-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.featured-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.meta-item i {
    color: var(--primary-color);
}

.featured-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-primary);
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    width: fit-content;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
}

.featured-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 25px rgba(0, 255, 255, 0.6);
}

/* 筛选控制栏 */
.cyber-filter-bar {
    padding: 20px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.filter-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 200px;
}

.filter-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-label i {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

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

.filter-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition-normal);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.filter-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 255, 255, 0.3);
}

.filter-btn.active {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: var(--bg-primary);
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.filter-btn.active:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 25px rgba(0, 255, 255, 0.6);
}

.filter-btn .btn-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 22px;
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.filter-btn:hover .btn-glow,
.filter-btn.active .btn-glow {
    opacity: 0.3;
    animation: filterGlow 2s ease-in-out infinite;
}

.filter-btn.clicked {
    transform: scale(0.95);
}

@keyframes filterGlow {
    0%, 100% { 
        opacity: 0.3; 
        transform: scale(1); 
    }
    50% { 
        opacity: 0.6; 
        transform: scale(1.05); 
    }
}

/* 视频网格 */
.cyber-video-section {
    margin: 20px 16px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.section-header {
    margin-bottom: 20px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
}

.title-icon {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.title-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    margin-left: 16px;
}

.cyber-video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.cyber-video-card {
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-normal);
}

.cyber-video-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.card-container {
    position: relative;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.card-container:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

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

.lazy-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
    opacity: 0;
}

.lazy-img.loaded {
    opacity: 1;
}

.thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 0, 0, 0.3), rgba(0, 255, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.card-container:hover .thumbnail-overlay {
    opacity: 1;
}

.play-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--bg-primary);
    transform: scale(0.8);
    transition: var(--transition-normal);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.6);
}

.card-container:hover .play-icon {
    transform: scale(1);
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

.video-info {
    padding: 12px;
}

.video-title {
    margin-bottom: 8px;
}

.video-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition-normal);
}

.video-title a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

.video-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
}

.video-category,
.video-views,
.video-time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.video-category i,
.video-views i,
.video-time i {
    color: var(--primary-color);
    font-size: 10px;
}

.card-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
    border-radius: 14px;
    opacity: 0;
    z-index: -1;
    transition: var(--transition-normal);
    filter: blur(8px);
}

.card-container:hover .card-glow {
    opacity: 0.3;
}

/* 分页导航 */
.cyber-pagination-wrapper {
    margin: 40px 16px 20px;
    display: flex;
    justify-content: center;
}

.pagination-container {
    background: var(--bg-card);
    border-radius: 25px;
    padding: 8px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-primary);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pagination a,
.pagination .current,
.pagination .dots {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: 18px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pagination a {
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
}

.pagination a:hover {
    color: var(--primary-color);
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

.pagination .current {
    color: var(--bg-primary);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    font-weight: 700;
}

.pagination .dots {
    color: var(--text-muted);
    cursor: default;
}

/* 底部导航 */
.cyber-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 1000;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    padding: 8px 12px;
    border-radius: 12px;
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary-color);
    background: rgba(0, 255, 255, 0.1);
}

.nav-icon {
    font-size: 20px;
    transition: var(--transition-normal);
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
    text-shadow: 0 0 10px var(--primary-color);
    transform: scale(1.1);
}

.nav-text {
    font-size: 11px;
    font-weight: 500;
}

.nav-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(0, 255, 255, 0.2), transparent);
    border-radius: 12px;
    opacity: 0;
    transition: var(--transition-normal);
}

.nav-item:hover .nav-glow,
.nav-item.active .nav-glow {
    opacity: 1;
}

/* 返回顶部按钮 */
.cyber-back-to-top {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50%;
    color: var(--bg-primary);
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
}

.cyber-back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.cyber-back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 5px 30px rgba(0, 255, 255, 0.6);
}

.rocket-trail {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 20px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.cyber-back-to-top:hover .rocket-trail {
    opacity: 1;
    animation: trail 0.5s ease-out;
}

@keyframes trail {
    0% { height: 0; }
    100% { height: 20px; }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cyber-video-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .featured-content {
        flex-direction: column;
        height: auto;
    }
    
    .featured-image {
        aspect-ratio: 16/9; /* 保持16:9比例 */
    }
    
    .featured-info {
        padding: 16px;
    }
    
    .title-text {
        font-size: 24px;
    }
    
    .page-stats {
        gap: 16px;
    }
    
    .header-search {
        margin: 0 12px;
    }
    
    .sidebar-content {
        width: 260px;
    }
    
    /* 筛选控制栏移动端样式 */
    .cyber-filter-bar {
        padding: 16px 12px;
    }
    
    .filter-container {
        flex-direction: column;
        gap: 16px;
    }
    
    .filter-group {
        min-width: auto;
    }
    
    .filter-label {
        font-size: 13px;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .cyber-video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }
    
    .cyber-page-header {
        padding: 20px 16px;
    }
    
    .title-text {
        font-size: 20px;
    }
    
    .featured-image {
        aspect-ratio: 16/9; /* 保持16:9比例 */
    }
    
    .featured-title {
        font-size: 16px;
    }
    
    .header-search {
        margin: 0 8px;
    }
    
    .search-input {
        height: 36px;
        font-size: 13px;
    }
    
    /* 筛选控制栏小屏幕样式 */
    .cyber-filter-bar {
        padding: 12px 8px;
    }
    
    .filter-container {
        gap: 12px;
    }
    
    .filter-label {
        font-size: 12px;
        gap: 6px;
    }
    
    .filter-options {
        gap: 6px;
    }
    
    .filter-btn {
        padding: 5px 10px;
        font-size: 10px;
        border-radius: 15px;
    }
}

/* 加载动画 */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.lazy-img:not(.loaded) {
    opacity: 0;
    background: linear-gradient(90deg, #2a2a2a 25%, #3a3a3a 50%, #2a2a2a 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

.lazy-img.loaded {
    opacity: 1;
    animation: none;
    background: none;
    transition: opacity 0.3s ease;
}

/* 推荐视频区域样式 */
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.related-video-card {
    background: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    overflow: hidden;
}

.related-video-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.related-thumbnail {
    position: relative;
    width: 100%;
    height: 120px;
    overflow: hidden;
}

.related-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    font-size: 14px;
    transition: var(--transition-normal);
}

.related-video-card:hover .play-overlay {
    background: var(--primary-color);
    transform: translate(-50%, -50%) scale(1.1);
}

.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: 11px;
}

.related-info {
    padding: 12px;
}

.related-title {
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.related-views i {
    color: var(--primary-color);
    margin-right: 4px;
}

/* 通知提示 */
.cyber-notification {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    max-width: 300px;
    z-index: 3000;
    transform: translateX(100%);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-primary);
}

.cyber-notification.show {
    transform: translateX(0);
}

.cyber-notification.success {
    border-color: var(--success-color);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
}

.cyber-notification.error {
    border-color: var(--error-color);
    box-shadow: 0 0 20px rgba(255, 0, 64, 0.3);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    font-size: 14px;
}

.notification-content i {
    font-size: 16px;
}

.cyber-notification.success .notification-content i {
    color: var(--success-color);
}

.cyber-notification.error .notification-content i {
    color: var(--error-color);
}

/* 侧边栏打开时的body样式 */
body.sidebar-open {
    overflow: hidden;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
    box-shadow: 0 0 5px var(--primary-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
    box-shadow: 0 0 8px var(--secondary-color);
}

/* ===== 播放页面样式 ===== */

/* 播放页头部 */
.cyber-play-header {
    position: relative;
    padding: 45px 16px 12px; /* 大幅减少padding：从80px减少到45px，底部从20px减少到12px */
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.play-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), rgba(255, 0, 255, 0.1));
    overflow: hidden;
}

.header-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 0, 255, 0.1) 0%, transparent 50%);
    animation: patternMove 10s ease-in-out infinite;
}

@keyframes patternMove {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

.header-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.2) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.play-header-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 8px 16px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition-normal);
    cursor: pointer;
}

.back-btn:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
    transform: translateX(-5px);
}

.play-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-accent);
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.title-icon {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

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

.title-accent {
    color: var(--secondary-color);
    text-shadow: 0 0 10px var(--secondary-color);
}

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

.action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 0, 255, 0.1);
    border: 1px solid var(--secondary-color);
    border-radius: 6px;
    padding: 6px 12px;
    color: var(--secondary-color);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.action-btn:hover {
    background: rgba(255, 0, 255, 0.2);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.4);
}

/* 视频播放器 */
.cyber-video-player {
    padding: 20px 16px;
    background: var(--bg-primary);
}

.player-container {
    max-width: 1200px;
    margin: 0 auto;
}

.player-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

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

.player-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    cursor: pointer;
    transition: var(--transition-normal);
}

.play-button-large {
    position: relative;
    width: 80px;
    height: 80px;
    background: rgba(0, 255, 255, 0.2);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary-color);
    transition: var(--transition-normal);
}

.play-button-large:hover {
    transform: scale(1.1);
    background: rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.6);
}

.play-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.3) 0%, transparent 70%);
    animation: playGlow 2s ease-in-out infinite;
}

@keyframes playGlow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--primary-color);
}

.loading-spinner {
    position: relative;
    width: 60px;
    height: 60px;
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-ring:nth-child(2) {
    animation-delay: 0.3s;
    border-top-color: var(--secondary-color);
}

.spinner-ring:nth-child(3) {
    animation-delay: 0.6s;
    border-top-color: var(--accent-color);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 14px;
    font-weight: 500;
}

/* 视频详情 */
.cyber-video-details {
    padding: 20px 16px;
    background: var(--bg-secondary);
}

.details-container {
    max-width: 1200px;
    margin: 0 auto;
}

.video-main-info {
    margin-bottom: 20px;
}

.video-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.video-stats {
    margin-bottom: 20px;
}

.stat-group {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.stat-item i {
    color: var(--primary-color);
}

.stat-number {
    color: var(--text-primary);
    font-weight: 500;
}

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

.action-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 10px 16px;
    color: var(--primary-color);
    cursor: pointer;
    transition: var(--transition-normal);
    overflow: hidden;
}

.action-btn:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
    transform: translateY(-2px);
}

.action-btn.active {
    background: rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.btn-icon {
    font-size: 16px;
}

.btn-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.btn-number {
    font-size: 12px;
    font-weight: 600;
}

.btn-text {
    font-size: 12px;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.action-btn:hover .btn-glow {
    left: 100%;
}

/* 作者信息 */
.cyber-author-section {
    padding: 20px 16px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.author-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-glow {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    z-index: -1;
    animation: avatarGlow 3s ease-in-out infinite;
}

@keyframes avatarGlow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.author-details h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.author-followers {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.author-description {
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 300px;
}

.follow-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    color: var(--bg-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.follow-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 255, 0.4);
}

.follow-btn.following {
    background: rgba(0, 255, 0, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.btn-bg {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.follow-btn:hover .btn-bg {
    left: 100%;
}

/* 视频描述 */
.cyber-description-section {
    padding: 20px 16px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.description-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.title-icon {
    color: var(--primary-color);
    font-size: 20px;
}

.description-content {
    max-height: 60px;
    overflow: hidden;
    transition: var(--transition-normal);
}

.description-content.expanded {
    max-height: none;
}

.description-text {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

.expand-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 16px;
    color: var(--primary-color);
    font-size: 12px;
    cursor: pointer;
    margin-top: 12px;
    transition: var(--transition-normal);
}

.expand-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--primary-color);
}

/* 评论区 */
.cyber-comments-section {
    padding: 20px 16px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.comments-container {
    max-width: 1200px;
    margin: 0 auto;
}

.comments-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.comments-count {
    color: var(--text-secondary);
    font-size: 16px;
    margin-left: 8px;
}

.comments-sort {
    display: flex;
    gap: 8px;
}

.sort-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 12px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.sort-btn.active,
.sort-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.comment-input-section {
    margin-bottom: 24px;
}

.input-container {
    display: flex;
    gap: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.input-wrapper {
    flex: 1;
}

.comment-input {
    width: 100%;
    min-height: 60px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    resize: vertical;
    outline: none;
    font-family: inherit;
}

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

.input-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
}

.emoji-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-normal);
}

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

.submit-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    color: var(--bg-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 15px rgba(0, 255, 255, 0.4);
}

.comments-list {
    margin-bottom: 20px;
}

.comment-item {
    display: flex;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.username {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.comment-time {
    color: var(--text-muted);
    font-size: 12px;
}

.comment-text {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 12px;
}

.comment-actions {
    display: flex;
    gap: 16px;
}

.comment-like,
.comment-reply {
    display: flex;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.comment-like:hover,
.comment-reply:hover {
    color: var(--primary-color);
}

.load-more-comments {
    text-align: center;
}

.load-more-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 12px 24px;
    color: var(--primary-color);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-normal);
    margin: 0 auto;
}

.load-more-btn:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
}

/* 相关推荐 */
.cyber-related-section {
    padding: 20px 16px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.related-container {
    max-width: 1200px;
    margin: 0 auto;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 固定每排2个 */
    gap: 16px;
    margin-top: 16px;
}

.related-video-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
}

.related-video-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary);
    border-color: var(--primary-color);
}

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

.related-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.related-thumbnail .play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: 14px;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.related-thumbnail .video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 500;
}

.related-info {
    padding: 12px;
}

.related-title {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.3;
}

.related-title a {
    color: var(--text-primary);
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-muted);
}

.related-views,
.related-time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.related-views i,
.related-time i {
    font-size: 10px;
    color: var(--primary-color);
}

/* ===== 搜索页面样式 ===== */

.cyber-search-header {
    position: relative;
    padding: 40px 16px 16px; /* 减少垂直padding：从80px减少到40px，底部从20px减少到16px */
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.search-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), rgba(255, 0, 255, 0.1));
    overflow: hidden;
}

.search-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 30% 30%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 0, 255, 0.1) 0%, transparent 50%);
    animation: searchPattern 8s ease-in-out infinite;
}

@keyframes searchPattern {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(10px, -10px) rotate(180deg); }
}

.search-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: searchGlow 4s ease-in-out infinite;
}

@keyframes searchGlow {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.3); }
}

.search-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.search-toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-title {
    text-align: center;
    margin-bottom: 24px;
}

.search-bar-container {
    flex: 1;
    max-width: none;
    margin: 0;
}

.search-wrapper {
    position: relative;
    display: flex;
    background: rgba(26, 26, 26, 0.8);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-primary);
}

.search-input-container {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 16px;
}

.search-input {
    width: 100%;
    height: 50px;
    background: none;
    border: none;
    padding: 0 50px 0 50px;
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
}

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

.clear-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.clear-btn:hover {
    color: var(--error-color);
}

.search-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 0 24px;
    color: var(--bg-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
}

.search-btn:hover {
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.2);
}

.cyber-search-results {
    padding: 20px 16px;
    background: var(--bg-primary);
}

.results-header {
    max-width: 1200px;
    margin: 0 auto 20px;
}

.results-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.title-icon {
    color: var(--primary-color);
}

.title-accent {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: auto;
}

.results-info {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-secondary);
    font-size: 14px;
}

.keyword-highlight {
    color: var(--primary-color);
    font-weight: 500;
}

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

.search-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 固定每排2个视频 */
    gap: 16px; /* 稍微减少间距 */
    padding: 16px 0; /* 减少padding */
}

.cyber-no-results {
    padding: 60px 20px;
    text-align: center;
}

.no-results-container {
    max-width: 400px;
    margin: 0 auto;
}

.no-results-icon {
    position: relative;
    display: inline-block;
    margin-bottom: 24px;
}

.no-results-icon i {
    font-size: 64px;
    color: var(--text-muted);
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    animation: iconGlow 3s ease-in-out infinite;
}

@keyframes iconGlow {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.2); }
}

.no-results-title {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.no-results-text {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.5;
}

.retry-btn {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: var(--bg-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 255, 0.4);
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.retry-btn:hover .btn-glow {
    opacity: 1;
}

.cyber-search-suggestions {
    padding: 20px 16px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.suggestions-container {
    max-width: 1200px;
    margin: 0 auto;
}

.suggestion-section {
    margin-bottom: 24px;
}

.suggestion-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.suggestion-title i {
    color: var(--primary-color);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 16px;
    padding: 6px 12px;
    color: var(--primary-color);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.tag-item:hover {
    background: rgba(0, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.4);
}

.tag-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.tag-item:hover .tag-glow {
    opacity: 1;
}

/* 分类推荐样式 */
.category-suggestions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.category-suggestion {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.category-suggestion:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.category-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    transition: var(--transition-normal);
}

.category-suggestion:hover .category-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.category-icon i {
    font-size: 18px;
    color: var(--bg-primary);
}

.category-name {
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

.category-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.category-suggestion:hover .category-glow {
    opacity: 1;
}

.recent-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.recent-item {
    background: rgba(255, 0, 255, 0.1);
    border: 1px solid var(--secondary-color);
    border-radius: 16px;
    padding: 6px 12px;
    color: var(--secondary-color);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.recent-item:hover {
    background: rgba(255, 0, 255, 0.2);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.4);
}

.recent-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 0, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.recent-item:hover .recent-glow {
    opacity: 1;
}

.clear-history-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 10px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.clear-history-btn:hover {
    border-color: var(--danger-color);
    color: var(--danger-color);
    background: rgba(255, 0, 64, 0.1);
}

/* 响应式设计 - 播放和搜索页面 */
@media (max-width: 768px) {
    /* 优化手机端播放页面头部布局 */
    .cyber-play-header {
        padding: 35px 12px 6px; /* 大幅减少内边距：从70px减少到35px */
        border-bottom: none; /* 移除边框，更简洁 */
    }
    
    .play-header-content {
        flex-direction: row; /* 水平布局，三个按钮一行 */
        gap: 8px;
        text-align: left;
        align-items: center;
        justify-content: space-between; /* 左右分布 */
    }
    
    /* 完全隐藏中间的标题部分 */
    .play-title {
        display: none; /* 隐藏整个标题区域 */
    }
    
    .back-btn {
        padding: 8px 12px; /* 稍大一点的按钮 */
        font-size: 14px;
        gap: 6px;
        flex-shrink: 0;
    }
    
    .play-actions {
        display: flex;
        gap: 8px;
        flex-shrink: 0;
    }
    
    .action-btn {
        padding: 8px 12px; /* 与返回按钮统一大小 */
        font-size: 14px;
        gap: 6px;
    }
    
    /* 保留按钮文字，但可以选择性隐藏 */
    .action-btn span {
        display: inline; /* 显示文字 */
    }
    
    /* 降低背景效果强度 */
    .header-pattern,
    .header-glow {
        opacity: 0.2;
    }
    
    /* 优化视频播放器间距 */
    .cyber-video-player {
        padding: 12px 12px 16px; /* 减少播放器区域的内边距 */
    }
    
    .player-wrapper {
        border-radius: 8px; /* 稍小的圆角 */
        box-shadow: 0 0 20px rgba(0, 255, 255, 0.2); /* 减弱阴影 */
    }
    
    /* 优化视频详情区域间距 */
    .cyber-video-details {
        padding: 16px 12px; /* 减少详情区域内边距 */
    }
    
    .video-title {
        font-size: 20px; /* 稍小的标题 */
        margin-bottom: 12px;
    }
    
    .video-actions {
        justify-content: center;
    }
    
    .author-container {
        flex-direction: column;
        text-align: center;
    }
    
    /* 搜索页面头部优化 */
    .cyber-search-header {
        padding: 30px 12px 12px; /* 进一步减少移动端头部空间 */
    }
    
    .search-toolbar {
        gap: 12px;
    }
    
    .back-btn {
        flex-shrink: 0;
        padding: 8px 12px;
        font-size: 14px;
    }
    
    .search-bar-container {
        flex: 1;
        max-width: none;
        padding: 0;
        margin: 0;
    }
    
    .search-wrapper {
        border-radius: 8px; /* 移动端稍小的圆角 */
    }
    
    .search-input {
        height: 44px; /* 移动端稍小的高度 */
        font-size: 14px;
        padding: 0 45px 0 45px;
    }
    
    .search-btn {
        padding: 0 16px; /* 移动端减少按钮padding */
        font-size: 14px;
    }
    
    /* 搜索结果网格优化 */
    .search-grid {
        grid-template-columns: repeat(2, 1fr); /* 平板设备保持每排2个 */
        gap: 12px;
        padding: 12px 0;
    }
    
    .related-grid {
        grid-template-columns: repeat(2, 1fr); /* 保持每排2个 */
        gap: 12px;
    }
    
    /* 优化相关推荐视频卡片在2列布局下的显示 */
    .related-video-card {
        border-radius: 8px; /* 稍小的圆角 */
    }
    
    .related-info {
        padding: 8px 10px; /* 减少内边距 */
    }
    
    .related-title {
        font-size: 13px; /* 稍小的字体 */
        margin-bottom: 6px;
    }
    
    .related-meta {
        font-size: 10px; /* 更小的元信息字体 */
        gap: 8px;
    }
    
    .related-thumbnail .video-duration {
        padding: 1px 4px; /* 更小的时长标签 */
        font-size: 9px;
    }
}

@media (max-width: 480px) {
    /* 更极致的手机端优化 */
    .cyber-play-header {
        padding: 30px 8px 4px; /* 极致紧凑的内边距：从65px减少到30px */
    }
    
    .play-header-content {
        gap: 6px;
    }
    
    /* 标题仍然隐藏 */
    .play-title {
        display: none;
    }
    
    .back-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .action-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    /* 小屏幕可以选择只显示图标 */
    .action-btn span {
        display: none; /* 小屏幕隐藏文字，只显示图标 */
    }
    
    /* 进一步优化播放器区域 */
    .cyber-video-player {
        padding: 8px; /* 最小化播放器内边距 */
    }
    
    .player-wrapper {
        border-radius: 6px;
    }
    
    /* 优化视频详情 */
    .cyber-video-details {
        padding: 12px 8px;
    }
    
    .video-title {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .stat-group {
        gap: 16px;
    }
    
    /* 小屏幕搜索页面优化 */
    .cyber-search-header {
        padding: 24px 8px 8px; /* 小屏幕进一步减少头部空间 */
    }
    
    .search-toolbar {
        gap: 8px;
    }
    
    .back-btn {
        padding: 6px 8px;
        font-size: 12px;
        gap: 4px;
    }
    
    .back-btn span {
        display: none; /* 小屏幕只显示返回图标 */
    }
    
    .search-input {
        height: 40px;
        font-size: 14px;
        padding: 0 40px 0 40px;
    }
    
    .search-icon {
        left: 12px;
        font-size: 14px;
    }
    
    .clear-btn {
        right: 12px;
        font-size: 14px;
    }
    
    .search-btn {
        padding: 0 12px;
        font-size: 13px;
    }
    
    /* 搜索结果优化 */
    .search-grid {
        grid-template-columns: repeat(2, 1fr); /* 小屏幕也保持每排2个 */
        gap: 8px;
        padding: 8px 0;
    }
    
    .results-header {
        margin-bottom: 12px;
    }
    
    .results-title {
        font-size: 20px;
    }
    
    .results-info {
        font-size: 13px;
        gap: 12px;
    }
    
    .related-grid {
        grid-template-columns: repeat(2, 1fr); /* 小屏幕也保持每排2个 */
        gap: 8px; /* 减小间距适应小屏幕 */
    }
    
    /* 极小屏幕下的相关推荐优化 */
    .related-video-card {
        border-radius: 6px;
    }
    
    .related-info {
        padding: 6px 8px; /* 更紧凑的内边距 */
    }
    
    .related-title {
        font-size: 12px; /* 更小的标题字体 */
        margin-bottom: 4px;
        line-height: 1.2;
    }
    
    .related-title a {
        -webkit-line-clamp: 2; /* 限制为2行 */
        display: -webkit-box;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .related-meta {
        font-size: 9px; /* 最小的元信息字体 */
        gap: 6px;
        flex-direction: column; /* 垂直排列元信息 */
        align-items: flex-start;
    }
    
    .related-thumbnail .video-duration {
        padding: 1px 3px;
        font-size: 8px;
        bottom: 4px;
        right: 4px;
    }
    
    .related-thumbnail .play-overlay {
        width: 30px; /* 更小的播放按钮 */
        height: 30px;
        font-size: 12px;
    }
}

/* ===== Infinite页面样式 ===== */

.content-description {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin: 20px 0;
}

.content-description p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.highlight {
    color: var(--primary-color);
    font-weight: 500;
}

.cyber-tag-cloud {
    margin-top: 20px;
}

.tag-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.tag-title i {
    color: var(--primary-color);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cyber-tag {
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 16px;
    padding: 6px 12px;
    color: var(--primary-color);
    font-size: 12px;
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cyber-tag:hover {
    background: rgba(0, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 255, 0.3);
}

.tag-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.cyber-tag:hover .tag-glow {
    opacity: 1;
}

.cyber-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.cyber-category-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 16px;
}

.cyber-category-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.cyber-category-card .category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cyber-category-card .category-icon i {
    font-size: 20px;
    color: var(--bg-primary);
}

.category-info {
    flex: 1;
}

.category-name {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.category-count {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
}

.category-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.cyber-category-card:hover .category-glow {
    opacity: 1;
}

.cyber-keyword-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.cyber-keyword {
    background: rgba(255, 0, 255, 0.1);
    border: 1px solid var(--secondary-color);
    border-radius: 16px;
    padding: 6px 12px;
    color: var(--secondary-color);
    font-size: 12px;
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.cyber-keyword:hover {
    background: rgba(255, 0, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 0, 255, 0.3);
}

.keyword-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 0, 255, 0.2), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.cyber-keyword:hover .keyword-glow {
    opacity: 1;
}

.cyber-features {
    margin-top: 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-primary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.feature-icon i {
    font-size: 24px;
    color: var(--bg-primary);
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.feature-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-glow {
    opacity: 1;
}

/* 响应式设计 - Infinite页面 */
@media (max-width: 768px) {
    .cyber-category-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cyber-category-card {
        padding: 16px;
    }
    
    .feature-card {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .content-description {
        padding: 16px;
    }
    
    .tag-list {
        gap: 6px;
    }
    
    .cyber-tag,
    .cyber-keyword {
        font-size: 11px;
        padding: 4px 8px;
    }
}