/* CSS变量定义 */
:root {
    /* 主色调 - 香蕉黄色系 */
    --primary-color: #ffb347;
    --primary-light: #ffd700;
    --primary-dark: #ff8c00;
    --secondary-color: #32cd32;
    --secondary-light: #90ee90;
    --secondary-dark: #228b22;
    --accent-color: #ff6347;
    --accent-light: #ffa07a;
    
    /* 背景色 - 温暖渐变 */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-card: rgba(255, 255, 255, 0.08);
    --bg-glass: rgba(255, 255, 255, 0.12);
    --bg-overlay: rgba(0, 0, 0, 0.7);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.85);
    --text-muted: rgba(255, 255, 255, 0.65);
    --text-accent: var(--accent-color);
    
    /* 边框和阴影 */
    --border-color: rgba(255, 255, 255, 0.15);
    --border-hover: rgba(255, 179, 71, 0.5);
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 16px 72px rgba(0, 0, 0, 0.3);
    --glow-primary: 0 0 40px rgba(255, 179, 71, 0.4);
    --glow-secondary: 0 0 40px rgba(50, 205, 50, 0.4);
    
    /* 间距系统 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 字体大小 */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
    --font-4xl: 2.25rem;
    --font-5xl: 3rem;
    --font-6xl: 3.75rem;
    
    /* 字体粗细 */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 过渡动画 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index层级 */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-light), var(--secondary-light));
}

/* 选择文本样式 */
::selection {
    background: var(--primary-color);
    color: var(--bg-primary);
}

::-moz-selection {
    background: var(--primary-color);
    color: var(--bg-primary);
}

/* 动态背景 */
.dynamic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    opacity: 0.05;
    border-radius: 50%;
    filter: blur(80px);
    animation: wave-float 25s infinite ease-in-out;
}

.wave-1 {
    top: -50%;
    left: -50%;
    animation-delay: 0s;
}

.wave-2 {
    top: -30%;
    right: -50%;
    animation-delay: -8s;
}

.wave-3 {
    bottom: -50%;
    left: -30%;
    animation-delay: -16s;
}

@keyframes wave-float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    25% {
        transform: translate(100px, -100px) rotate(90deg) scale(1.2);
    }
    50% {
        transform: translate(-50px, 50px) rotate(180deg) scale(0.8);
    }
    75% {
        transform: translate(150px, 80px) rotate(270deg) scale(1.1);
    }
}

.particle-system {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particle-float 15s infinite linear;
}

.particle:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 20%; left: 80%; animation-delay: -2s; }
.particle:nth-child(3) { top: 60%; left: 20%; animation-delay: -4s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: -6s; }
.particle:nth-child(5) { top: 30%; left: 50%; animation-delay: -8s; }
.particle:nth-child(6) { top: 70%; left: 90%; animation-delay: -10s; }
.particle:nth-child(7) { top: 40%; left: 30%; animation-delay: -12s; }
.particle:nth-child(8) { top: 90%; left: 60%; animation-delay: -14s; }

@keyframes particle-float {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-100px) scale(1.2);
        opacity: 1;
    }
    100% {
        transform: translateY(-200px) scale(0.8);
        opacity: 0;
    }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand .logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    font-size: var(--font-2xl);
    filter: drop-shadow(0 0 10px rgba(255, 179, 71, 0.6));
}

.logo-text {
    font-size: var(--font-2xl);
    font-weight: var(--font-extrabold);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255, 179, 71, 0.5);
}

.logo-badge {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    padding: 2px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: var(--font-bold);
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--font-base);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 179, 71, 0.2), transparent);
    transition: left var(--transition-normal);
}

.nav-link:hover::before,
.nav-link.active::before {
    left: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 179, 71, 0.1);
    box-shadow: var(--glow-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 300px;
    height: 40px;
    padding: 0 var(--spacing-lg) 0 var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--font-sm);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
    width: 350px;
}

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

.search-btn {
    position: absolute;
    right: var(--spacing-xs);
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    font-size: var(--font-sm);
}

.search-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--glow-primary);
}

.user-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    font-size: var(--font-lg);
}

.user-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-color);
    z-index: var(--z-modal);
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    right: 0;
}

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

.mobile-menu-close {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-2xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.mobile-menu-close:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.mobile-nav-links {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-medium);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.mobile-nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

/* 主要内容 */
.main-content {
    margin-top: 70px;
}

/* 英雄区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    color: var(--text-accent);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 99, 71, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(255, 99, 71, 0);
    }
}

.badge-icon {
    font-size: var(--font-lg);
}

.hero-title {
    font-size: var(--font-6xl);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255, 179, 71, 0.5);
}

.hero-description {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-3xl);
    font-weight: var(--font-extrabold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-sm);
    color: var(--text-muted);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
}

.cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    z-index: 1;
}

.cta-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-lg);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--glow-primary);
}

.cta-btn.secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.cta-btn.secondary:hover {
    background: var(--bg-card);
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.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: left var(--transition-slow);
}

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

.btn-icon {
    font-size: var(--font-lg);
}

.btn-text {
    position: relative;
    z-index: 1;
}

/* 英雄视觉区域 */
.hero-visual {
    position: relative;
    z-index: 1;
}

.featured-showcase {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.showcase-main {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.showcase-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.showcase-main:hover img {
    transform: scale(1.05);
}

.showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.showcase-main:hover .showcase-overlay {
    opacity: 1;
}

.play-btn-large {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    font-size: var(--font-2xl);
}

.play-btn-large:hover {
    transform: scale(1.1);
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.showcase-info {
    position: absolute;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    color: white;
}

.showcase-info h3 {
    font-size: var(--font-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-xs);
}

.showcase-info p {
    font-size: var(--font-sm);
    opacity: 0.8;
}

.showcase-thumbnails {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.thumbnail-item {
    position: relative;
    width: 120px;
    aspect-ratio: 16/9;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.thumbnail-item.active {
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.thumbnail-item:hover {
    transform: translateY(-2px);
}

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

.thumbnail-overlay {
    position: absolute;
    bottom: var(--spacing-xs);
    right: var(--spacing-xs);
}

.duration {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: float-card 6s infinite ease-in-out;
    box-shadow: var(--shadow-lg);
}

.card-1 {
    top: 20%;
    right: -50px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    left: -50px;
    animation-delay: -2s;
}

.card-3 {
    top: 60%;
    right: -30px;
    animation-delay: -4s;
}

@keyframes float-card {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

.card-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-lg);
}

.card-content {
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: var(--font-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.card-subtitle {
    font-size: var(--font-xs);
    color: var(--text-muted);
}

/* 内容区域 */
.content-section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
}

.section-title-wrapper {
    flex: 1;
}

.section-title {
    font-size: var(--font-4xl);
    font-weight: var(--font-extrabold);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-lg);
    color: var(--text-secondary);
}

.section-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.filter-tabs {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--spacing-xs);
    backdrop-filter: blur(10px);
}

.filter-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: none;
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.filter-tab:hover,
.filter-tab.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--glow-primary);
}

.view-all-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

/* 内容网格 */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

/* 媒体卡片 */
.media-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(20px);
    position: relative;
}

.media-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-hover);
}

.card-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.media-card:hover .card-image img {
    transform: scale(1.05);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.play-btn {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    font-size: var(--font-xl);
}

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

.card-actions {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.media-card:hover .card-actions {
    opacity: 1;
}

.action-btn {
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    font-size: var(--font-sm);
}

.action-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.card-badges {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
}

.quality-badge,
.type-badge,
.episode-badge,
.live-badge,
.live-indicator {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.quality-badge {
    background: linear-gradient(135deg, var(--accent-color), #ff9800);
    color: white;
}

.type-badge {
    background: linear-gradient(135deg, var(--secondary-color), #4caf50);
    color: white;
}

.episode-badge,
.live-badge {
    background: linear-gradient(135deg, var(--primary-color), #e91e63);
    color: white;
}

.live-indicator {
    background: linear-gradient(135deg, #f44336, #ff5722);
    color: white;
    animation: pulse 2s infinite;
}

.card-content {
    padding: var(--spacing-lg);
}

.card-title {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-sm);
    color: var(--text-muted);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-color);
    font-weight: var(--font-semibold);
}

.card-description {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-actions-bottom {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn-small {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.action-btn-small.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.action-btn-small.primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.action-btn-small.secondary {
    background: var(--bg-glass);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.action-btn-small.secondary:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
    background: rgba(255, 179, 71, 0.1);
}

/* 直播卡片特殊样式 */
.live-card .card-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 179, 71, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.live-info {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
}

.viewer-count {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    backdrop-filter: blur(10px);
}

.live-status {
    color: var(--primary-color);
    font-weight: var(--font-medium);
}

/* 页脚 */
.footer {
    background: linear-gradient(to top, var(--bg-secondary), var(--bg-primary));
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.link-group h4 {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.link-group ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.link-group a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: color var(--transition-normal);
}

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

.download-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
    background: rgba(255, 179, 71, 0.1);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.copyright {
    color: var(--text-muted);
    font-size: var(--font-sm);
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: color var(--transition-normal);
}

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

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: var(--z-fixed);
    font-size: var(--font-xl);
}

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

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--glow-primary);
}

/* 动画类 */
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .floating-elements {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --font-6xl: 2.5rem;
        --font-5xl: 2rem;
        --font-4xl: 1.75rem;
        --font-3xl: 1.5rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .search-container {
        display: none;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section-header {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: flex-start;
    }
    
    .section-controls {
        width: 100%;
        justify-content: space-between;
    }
    
    .filter-tabs {
        overflow-x: auto;
        scrollbar-width: none;
    }
    
    .filter-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .section-container {
        padding: 0 var(--spacing-md);
    }
    
    .footer-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-actions {
        width: 100%;
    }
    
    .cta-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}