```css
/* ============================================
   樱花视频 - 全站样式表
   风格：暗色科技感 + 紫色渐变 + 毛玻璃
   ============================================ */

:root {
    /* 主色调 */
    --primary: #7b5ea7;
    --primary-light: #a78bfa;
    --primary-dark: #4c1d95;
    --secondary: #ec4899;
    --accent: #06b6d4;

    /* 背景色 */
    --bg-primary: #0a0a1a;
    --bg-secondary: #12122a;
    --bg-card: rgba(30, 30, 60, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.05);

    /* 文字色 */
    --text-primary: #f1f5f9;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    /* 边框 */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(167, 139, 250, 0.5);

    /* 阴影 */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(167, 139, 250, 0.3);

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #7b5ea7 0%, #ec4899 50%, #06b6d4 100%);
    --gradient-banner: linear-gradient(135deg, rgba(124, 94, 167, 0.3) 0%, rgba(236, 72, 153, 0.2) 50%, rgba(6, 182, 212, 0.2) 100%);
    --gradient-card: linear-gradient(145deg, rgba(124, 94, 167, 0.1) 0%, rgba(30, 30, 60, 0.5) 100%);

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 40px;
    --spacing-2xl: 60px;

    /* 字体 */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-md: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 28px;
    --font-size-2xl: 36px;

    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 动画 */
    --animation-fade-in: fadeIn 0.5s ease;
    --animation-slide-up: slideUp 0.5s ease;
    --animation-zoom-in: zoomIn 0.5s ease;
}

/* ========== 基础样式重置 ========== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(ellipse at 20% 20%, rgba(124, 94, 167, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 0%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    font-size: var(--font-size-md);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-primary);
}

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

/* 通用链接样式 */
a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary);
}

/* 通用图片样式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* 通用列表样式 */
ul, ol {
    list-style-position: inside;
}

/* ========== Header 头部导航 ========== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

header:hover {
    background: rgba(10, 10, 26, 0.95);
}

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

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

.logo-container h1 {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.logo-container h1::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.logo-container h1:hover::after {
    transform: scaleX(1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    position: relative;
    letter-spacing: 0.5px;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.nav-menu a:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
    box-shadow: var(--shadow-glow);
}

.nav-menu a:hover::before {
    width: 60%;
}

.nav-menu a:active {
    transform: scale(0.95);
}

/* ========== Main 主区域 ========== */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 90px var(--spacing-lg) var(--spacing-2xl);
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
    position: relative;
}

/* ========== 通用 Section 样式 ========== */
section {
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

section h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(90deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

section h2::before {
    content: '';
    width: 4px;
    height: 28px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow);
}

/* ========== 热门影视区 ========== */
.hot-section {
    animation: var(--animation-fade-in);
}

.movie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    perspective: 1000px;
}

.movie-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    animation: var(--animation-slide-up);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.movie-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.movie-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(124, 94, 167, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.movie-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.movie-card:hover::before {
    transform: scaleX(1);
}

.movie-card:hover::after {
    opacity: 1;
}

.movie-card img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.movie-card:hover img {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.movie-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    transition: color var(--transition-normal);
    position: relative;
    z-index: 1;
}

.movie-card:hover h3 {
    color: var(--primary-light);
}

.movie-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    position: relative;
    z-index: 1;
    line-height: 1.4;
}

.movie-card p:last-child {
    margin-bottom: 0;
}

/* 评分标签 */
.movie-card p:nth-last-child(2) {
    display: inline-block;
    padding: 2px 10px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

/* ========== 精品推荐 ========== */
.featured-section {
    animation: var(--animation-fade-in);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.featured-card {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    animation: var(--animation-slide-up);
    cursor: pointer;
}

.featured-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

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

.featured-card:hover::before {
    opacity: 1;
}

.featured-card img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.featured-card:hover img {
    transform: scale(1.03);
}

.featured-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.featured-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.featured-card p:first-of-type {
    color: var(--text-muted);
    font-style: italic;
    border-left: 3px solid var(--primary);
    padding-left: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* ========== 影视详细介绍 ========== */
.detail-section {
    animation: var(--animation-fade-in);
}

.detail-content {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.detail-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.detail-content img {
    max-width: 300px;
    border-radius: var(--radius-md);
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.detail-content img:hover {
    transform: scale(1.02);
}

.detail-content h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.detail-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.detail-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.detail-content p:last-child {
    background: var(--bg-glass);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--primary-light);
}

/* ========== 演员介绍 ========== */
.cast-section {
    animation: var(--animation-fade-in);
}

.cast-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.cast-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    animation: var(--animation-slide-up);
    cursor: pointer;
}

.cast-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.cast-card img {
    width: 200px;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.cast-card:hover img {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.cast-card h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.cast-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.cast-card p:last-child {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

/* ========== 平台介绍 ========== */
.platform-section {
    animation: var(--animation-fade-in);
}

.platform-section article {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.platform-section article::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.platform-section h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.platform-section h3:first-of-type {
    margin-top: 0;
}

.platform-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

/* ========== APP下载 ========== */
.app-section {
    animation: var(--animation-fade-in);
}

.app-content {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.app-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.app-content h3 {
    font-size: var(--font-size-lg);
    color: var(--primary-light);
    margin-bottom: var(--spacing-md);
}

.app-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.app-content ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.app-content ul li {
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    padding-left: var(--spacing-xl);
}

.app-content ul li::before {
    content: '✓';
    position: absolute;
    left: var(--spacing-md);
    color: var(--primary-light);
    font-weight: bold;
}

.app-content ul li:hover {
    border-color: var(--border-hover);
    transform: translateX(5px);
}

.app-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-md);
}

.btn::before {
    content: '';
    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-normal);
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(-1px) scale(0.98);
}

.btn:nth-child(2) {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn:nth-child(3) {
    background: linear-gradient(135deg, var(--accent), var(--primary));
}

/* ========== 用户评论 ========== */
.reviews-section {
    animation: var(--animation-fade-in);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.review-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    animation: var(--animation-slide-up);
    position: relative;
    overflow: hidden;
}

.review-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    right: 10px;
    font-size: 80px;
    color: var(--primary);
    opacity: 0.1;
    font-family: serif;
}

.review-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
    background: var(--bg-glass);
}

.review-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.review-card p:first-child {
    color: var(--primary-light);
    font-weight: 600;
    font-size: var(--font-size-md);
}

.review-card p:last-child {
    color: var(--text-muted);
    font-style: italic;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* ========== 侧边栏 ========== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    position: sticky;
    top: 90px;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
}

.sidebar-block {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    animation: var(--animation-fade-in);
}

.sidebar-block:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.sidebar-block h2 {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-left: 0;
    color: var(--text-primary);
    -webkit-text-fill-color: var(--text-primary);
    background: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-block h2::before {
    content: '';
    width: 3px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.sidebar-block ol {
    list-style: none;
    counter-reset: sidebar-counter;
}

.sidebar-block ol li {
    counter-increment: sidebar-counter;
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    padding-left: var(--spacing-xl);
    cursor: pointer;
}

.sidebar-block ol li::before {
    content: counter(sidebar-counter);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: bold;
    opacity: 0.8;
    transition: all var(--transition-normal);
}

.sidebar-block ol li:hover {
    color: var(--primary-light);
    padding-left: var(--spacing-2xl);
}

.sidebar-block ol li:hover::before {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-glow);
}

.sidebar-block ul {
    list-style: none;
}

.sidebar-block ul li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    padding-left: var(--spacing-md);
    cursor: pointer;
}

.sidebar-block ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-light);
    transition: transform var(--transition-normal);
}

.sidebar-block ul li:hover {
    color: var(--primary-light);
    padding-left: var(--spacing-lg);
}

.sidebar-block ul li:hover::before {
    transform: translateX(3px);
}

.sidebar-block ul li:last-child {
    border-bottom: none;
}

/* 热门分类特殊样式 */
.sidebar-block:last-child ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.sidebar-block:last-child ul li {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    margin: 0;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.sidebar-block:last-child ul li::before {
    display: none;
}

.sidebar-block:last-child ul li:hover {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-color: transparent;
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

/* ========== Footer 页脚 ========== */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.footer-links {
    max-width: 1400px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.footer-links h2 {
    font-size: var(--font-size-md);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    -webkit-text-fill-color: var(--text-primary);
    background: none;
    justify-content: center;
}

.footer-links h2::before {
    display: none;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.footer-links ul li a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    display: inline-block;
}

.footer-links ul li a:hover {
    color: var(--primary-light);
    background: var(--bg-glass);
    transform: translateY(-2px);
}

.footer-info {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-info p {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.footer-info p:last-child {
    margin-bottom: 0;
}

.footer-info a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

/* ========== 动画关键帧 ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    main {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }

    .sidebar-block {
        margin-bottom: 0;
    }
}

@media (max-width: 992px) {
    nav {
        flex-direction: column;
        padding: var(--spacing-md) var(--spacing-lg);
        gap: var(--spacing-sm);
    }

    .logo-container h1 {
        font-size: var(--font-size-lg);
    }

    .nav-menu {
        justify-content: center;
        gap: var(--spacing-xs);
    }

    .nav-menu a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }

    main {
        padding-top: 130px;
    }

    .movie-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--spacing-md);
    }

    .featured-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .cast-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .reviews-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-2xl: 28px;
        --font-size-xl: 24px;
        --font-size-lg: 18px;
        --font-size-md: 14px;
        --font-size-sm: 12px;
        --font-size-xs: 11px;
    }

    main {
        padding: 120px var(--spacing-md) var(--spacing-xl);
    }

    section {
        margin-bottom: var(--spacing-xl);
    }

    .movie-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-sm);
    }

    .movie-card {
        padding: var(--spacing-sm);
    }

    .movie-card h3 {
        font-size: var(--font-size-md);
    }

    .featured-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }

    .featured-card {
        padding: var(--spacing-md);
    }

    .detail-content,
    .platform-section article,
    .app-content {
        padding: var(--spacing-lg);
    }

    .detail-content img {
        max-width: 200px;
    }

    .cast-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing-md);
    }

    .cast-card {
        padding: var(--spacing-md);
    }

    .cast-card img {
        width: 140px;
        height: 200px;
    }

    .app-content ul {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }

    .reviews-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .sidebar {
        grid-template-columns: 1fr;
    }

    .footer-links ul {
        gap: var(--spacing-xs);
    }

    .footer-links ul li a {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    main {
        padding: 110px var(--spacing-sm) var(--spacing-lg);
    }

    .movie-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
    }

    .movie-card {
        padding: var(--spacing-xs);
    }

    .movie-card p {
        font-size: var(--font-size-xs);
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }

    .cast-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
    }

    .cast-card {
        padding: var(--spacing-sm);
    }

    .cast-card img {
        width: 100%;
        height: auto;
        aspect-ratio: 3/4;
    }

    .cast-card p {
        font-size: var(--font-size-xs);
    }

    .detail-content,
    .platform-section article,
    .app-content {
        padding: var(--spacing-md);
    }

    .detail-content img {
        max-width: 150px;
    }

    .app-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .footer-info p {
        font-size: var(--font-size-xs);
    }
}

/* ========== 暗色模式优化 ========== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #050510;
        --bg-secondary: #0a0a1a;
        --text-primary: #ffffff;
        --text-secondary: #a1a1aa;
    }
}

/* ========== 无障碍访问 ========== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========== 打印样式 ========== */
@media print {
    header,
    footer,
    .sidebar,
    .app-buttons,
    .nav-menu {
        display: none !important;
    }

    body {
        background: #ffffff;
        color: #000000;
    }

    main {
        padding: 0;
        display: block;
    }

    section {
        break-inside: avoid;
        margin-bottom: var(--spacing-lg);
    }

    .movie-card,
    .featured-card,
    .cast-card,
    .review-card,
    .detail-content,
    .platform-section article,
    .app-content {
        background: #ffffff;
        border: 1px solid #cccccc;
        box-shadow: none;
        backdrop-filter: none;
    }

    img {
        max-width: 200px;
    }
}
```