/* ========================================
   2025 现代玻璃态影视模板 - 全局样式
   版本：2.0
   设计理念：玻璃态 + 渐变 + 微动画
   移动端优先 + 百度 SEO 深度优化
======================================== */

/* CSS Variables - 色彩系统 */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(10px);
    
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(255, 255, 255, 0.05);
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6c6c7c;
    
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
    
    --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);
}

/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(118, 75, 162, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(240, 147, 251, 0.1) 0px, transparent 50%);
    min-width: 320px;
    min-height: 100vh;
    overflow-x: hidden;
}

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

a:hover {
    color: #667eea;
}

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

ul, ol {
    list-style: none;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ========================================
   玻璃态效果基础类
======================================== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2);
}

/* ========================================
   头部导航 - 玻璃态
======================================== */
.header {
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 8px 0;
    background: rgba(15, 15, 35, 0.95);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo h1 {
    font-size: 22px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.nav ul {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav a {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 14px;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: transform var(--transition-fast);
}

.nav a:hover,
.nav a.active {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.nav a:hover::after,
.nav a.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* 搜索框 - 玻璃态 */
.search-box {
    position: relative;
}

.search-box form {
    display: flex;
    align-items: center;
}

.search-box input {
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
    outline: none;
    width: 180px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(102, 126, 234, 0.5);
    width: 220px;
}

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

.search-box button {
    padding: 10px 18px;
    background: var(--primary-gradient);
    color: #fff;
    border: none;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.search-box button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

/* ========================================
   面包屑导航
======================================== */
.breadcrumb {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.breadcrumb nav {
    font-size: 13px;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

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

.breadcrumb a:hover {
    color: #667eea;
}

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

/* ========================================
   主要内容区
======================================== */
.main-content {
    padding: 24px 0;
    min-height: calc(100vh - 400px);
}

/* ========================================
   区块标题
======================================== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.section-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-header h2::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.section-header .more a {
    color: var(--text-secondary);
    font-size: 13px;
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.05);
    transition: all var(--transition-fast);
}

.section-header .more a:hover {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
}

/* ========================================
   视频网格 - 移动端优先
======================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
    position: relative;
}

.video-card:hover {
    transform: translateY(-4px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.15);
}

.video-cover {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
}

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

.video-card:hover .video-cover img {
    transform: scale(1.08);
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 48px;
    height: 48px;
    background: rgba(102, 126, 234, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    opacity: 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.video-card:hover .play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-score {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--secondary-gradient);
    color: #fff;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    backdrop-filter: blur(10px);
}

.video-info {
    padding: 12px;
}

.video-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color var(--transition-fast);
}

.video-card:hover .video-title {
    color: #667eea;
}

.video-desc {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========================================
   播放页面
======================================== */
.player-section {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.player-wrapper {
    margin-bottom: 24px;
}

.player-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.video-player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-detail {
    margin-bottom: 32px;
}

.video-main-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 13px;
}

.meta-item {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.score {
    color: #f5576c !important;
    font-weight: 700;
}

.video-actors,
.video-director {
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.video-plot {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.video-plot h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.video-plot p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 集数列表 */
.episodes-section {
    margin-bottom: 32px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.episodes-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.episode-btn {
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    transition: all var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.episode-btn:hover,
.episode-btn.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
    transform: scale(1.05);
}

/* 相关推荐 */
.related-section {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ========================================
   列表页
======================================== */
.list-header {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.list-header h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
}

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

.filter-item span {
    color: var(--text-muted);
    font-weight: 600;
}

.filter-item a {
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    background: rgba(255, 255, 255, 0.03);
}

.filter-item a:hover,
.filter-item a.active {
    background: var(--primary-gradient);
    color: #fff;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    transition: all var(--transition-fast);
}

.pagination a:hover,
.pagination span.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
    transform: scale(1.05);
}

/* ========================================
   页脚 - 玻璃态
======================================== */
.footer {
    background: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-links {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links a {
    color: var(--text-secondary);
    margin: 0 12px;
    font-size: 13px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #667eea;
}

.footer-info {
    text-align: center;
    margin-bottom: 20px;
}

.footer-info p {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

/* ========================================
   广告位样式
======================================== */
.ad-container {
    margin: 20px 0;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.ad-banner {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 16px;
    text-align: center;
}

.ad-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
}

/* ========================================
   响应式设计 - 平板
======================================== */
@media (min-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .search-box input {
        width: 220px;
    }
    
    .search-box input:focus {
        width: 280px;
    }
    
    .video-main-title {
        font-size: 26px;
    }
    
    .section-header h2 {
        font-size: 22px;
    }
}

/* ========================================
   响应式设计 - 桌面
======================================== */
@media (min-width: 1024px) {
    .video-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    
    .container {
        padding: 0 24px;
    }
    
    .header .container {
        gap: 24px;
    }
    
    .nav a {
        font-size: 15px;
        padding: 10px 18px;
    }
}

@media (min-width: 1280px) {
    .video-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ========================================
   移动端优化 (< 768px)
======================================== */
@media (max-width: 767px) {
    .menu-toggle {
        display: block;
    }
    
    .nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(15, 15, 35, 0.98);
        backdrop-filter: blur(20px);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-normal);
        z-index: 999;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav ul {
        flex-direction: column;
        gap: 8px;
    }
    
    .nav a {
        display: block;
        padding: 12px 16px;
        font-size: 15px;
    }
    
    .search-box {
        order: 3;
        width: 100%;
    }
    
    .search-box form {
        width: 100%;
    }
    
    .search-box input {
        flex: 1;
        width: auto;
    }
    
    .search-box input:focus {
        width: auto;
    }
    
    .header .container {
        flex-wrap: wrap;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .video-cover {
        aspect-ratio: 3/4;
    }
    
    .video-info {
        padding: 10px;
    }
    
    .video-title {
        font-size: 13px;
    }
    
    .video-desc {
        font-size: 11px;
    }
    
    .player-section {
        padding: 16px;
    }
    
    .video-main-title {
        font-size: 18px;
    }
    
    .video-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .episodes-grid {
        gap: 8px;
    }
    
    .episode-btn {
        padding: 8px 14px;
        font-size: 12px;
    }
}

/* ========================================
   微动画效果
======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.video-card {
    animation: fadeIn 0.5s ease-out;
}

.video-card:nth-child(1) { animation-delay: 0.05s; }
.video-card:nth-child(2) { animation-delay: 0.1s; }
.video-card:nth-child(3) { animation-delay: 0.15s; }
.video-card:nth-child(4) { animation-delay: 0.2s; }
.video-card:nth-child(5) { animation-delay: 0.25s; }
.video-card:nth-child(6) { animation-delay: 0.3s; }

/* ========================================
   骨架屏加载动画
======================================== */
@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 25%,
        rgba(255, 255, 255, 0.08) 50%,
        rgba(255, 255, 255, 0.05) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

/* ========================================
   工具类
======================================== */
.text-center {
    text-align: center;
}

.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

/* ========================================
   滚动条美化
======================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.7);
}