/* 
 * 柠檬导航 - 原创CSS样式
 * 专业影视视频推荐平台
 * 版权所有 2025
 */

/* ===== CSS变量定义 ===== */
:root {
    --primary-color: #e74c3c;
    --primary-dark: #c0392b;
    --secondary-color: #3498db;
    --bg-dark: #1a1a2e;
    --bg-darker: #16213e;
    --bg-card: #0f3460;
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    --border-color: #2a2a4a;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    --gradient-dark: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--gradient-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

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

ul, ol {
    list-style: none;
}

/* ===== 容器布局 ===== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 头部导航 ===== */
.header {
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px var(--shadow-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.logo-icon {
    font-size: 2rem;
}

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

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

.main-nav a {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

/* ===== 面包屑导航 ===== */
.breadcrumb {
    background: var(--bg-dark);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

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

.breadcrumb-item.active {
    color: var(--primary-color);
}

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

/* ===== 主要内容区 ===== */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - 200px);
}

/* ===== 页面标题区 ===== */
.page-hero {
    text-align: center;
    margin-bottom: 50px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.page-hero h1 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-text {
    color: var(--text-secondary);
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.8;
}

/* ===== 视频板块 ===== */
.video-section {
    margin-bottom: 50px;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
}

.section-title h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-left: 15px;
}

.section-title h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 2px;
}

.more-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

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

/* ===== 视频卡片 ===== */
.video-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px var(--shadow-color);
    border-color: var(--primary-color);
}

.video-poster {
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
}

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

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

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.play-btn {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    position: relative;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.5);
}

.play-btn::after {
    content: '';
    position: absolute;
    left: 55%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent white;
}

.video-rating {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: #ffd700;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.video-meta span {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-darker);
    padding: 3px 8px;
    border-radius: 3px;
}

.video-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== 分类页描述 ===== */
.category-intro {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
}

.category-intro h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.category-intro p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== EEAT页面内容 ===== */
.content-page {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.content-page h1 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    text-align: center;
}

.content-page h2 {
    font-size: 1.4rem;
    margin: 30px 0 15px;
    color: var(--text-primary);
    padding-left: 15px;
    border-left: 4px solid var(--primary-color);
}

.content-page p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.content-page ul {
    margin: 15px 0;
    padding-left: 25px;
}

.content-page li {
    color: var(--text-secondary);
    margin-bottom: 10px;
    position: relative;
    padding-left: 15px;
}

.content-page li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.team-member {
    background: var(--bg-darker);
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
}

.team-member h3 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.team-member p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: 50px 0 30px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

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

.footer-nav a {
    display: inline-block;
    color: var(--text-secondary);
    margin-right: 15px;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

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

.footer-links a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 0.95rem;
}

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

.footer-statement {
    background: var(--bg-dark);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.footer-statement p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-statement strong {
    color: var(--primary-color);
}

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

.footer-update {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

@media (max-width: 992px) {
    .video-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .header-inner {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
        gap: 15px;
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .page-hero h1 {
        font-size: 1.6rem;
    }
    
    .section-title h2 {
        font-size: 1.2rem;
    }
    
    .content-page {
        padding: 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .main-nav a {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    
    .video-info {
        padding: 10px;
    }
    
    .video-info h3 {
        font-size: 0.85rem;
    }
}