/* ============================================
   茄子视频传媒 162675.cn - 原创样式表
   配色方案：樱花粉 #E8507A / 深紫 #3D1F5C / 暖金 #D4A843
   ============================================ */

/* === 基础重置与全局 === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --primary:#E8507A;
    --primary-dark:#C73D63;
    --secondary:#3D1F5C;
    --accent:#D4A843;
    --bg:#FAFAFA;
    --bg-alt:#F3EEF8;
    --text:#2D2D3A;
    --text-light:#6B6B80;
    --white:#FFFFFF;
    --border:#E8E0F0;
    --shadow:0 4px 20px rgba(61,31,92,0.08);
    --shadow-hover:0 8px 32px rgba(232,80,122,0.15);
    --radius:12px;
    --radius-sm:8px;
    --transition:all 0.3s ease;
    --max-width:1200px;
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}

/* === 头部导航 === */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:var(--transition)}
.site-header.scrolled{box-shadow:var(--shadow)}
.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 20px;display:flex;align-items:center;height:68px;gap:24px}
.logo-link{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.logo-text{font-size:1.25rem;font-weight:700;color:var(--secondary)}
.logo-text em{font-style:normal;color:var(--primary)}
.nav-list{display:flex;list-style:none;gap:4px}
.nav-list a{display:block;padding:8px 16px;border-radius:var(--radius-sm);color:var(--text);font-size:0.9rem;font-weight:500;transition:var(--transition)}
.nav-list a:hover,.nav-list a.nav-active{background:var(--primary);color:var(--white)}
.header-search{margin-left:auto}
.search-form{display:flex;border:1px solid var(--border);border-radius:24px;overflow:hidden}
.search-input{border:none;padding:8px 16px;font-size:0.85rem;width:200px;outline:none;background:transparent}
.search-btn{border:none;background:var(--primary);color:var(--white);padding:8px 18px;cursor:pointer;font-size:0.85rem;transition:var(--transition)}
.search-btn:hover{background:var(--primary-dark)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-menu-btn span{display:block;width:24px;height:2px;background:var(--text);transition:var(--transition)}

/* === Hero区域 === */
.hero-section{position:relative;min-height:600px;display:flex;align-items:center;justify-content:center;margin-top:68px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(61,31,92,0.75),rgba(232,80,122,0.55))}
.hero-content{position:relative;z-index:2;text-align:center;padding:60px 20px;max-width:800px}
.hero-title{font-size:2.8rem;font-weight:800;color:var(--white);margin-bottom:16px;line-height:1.3;text-shadow:0 2px 8px rgba(0,0,0,0.3)}
.hero-subtitle{font-size:1.15rem;color:rgba(255,255,255,0.9);margin-bottom:32px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;margin-bottom:40px;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:14px 36px;background:var(--primary);color:var(--white);border-radius:30px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);text-decoration:none}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,80,122,0.4);color:var(--white)}
.btn-outline{display:inline-block;padding:14px 36px;border:2px solid var(--white);color:var(--white);border-radius:30px;font-size:1rem;font-weight:600;transition:var(--transition);text-decoration:none}
.btn-outline:hover{background:var(--white);color:var(--primary)}
.hero-stats{display:flex;gap:40px;justify-content:center;flex-wrap:wrap}
.stat-item{text-align:center;color:var(--white)}
.stat-item strong{display:block;font-size:1.6rem;font-weight:800}
.stat-item span{font-size:0.85rem;opacity:0.85}

/* === 面包屑 === */
.breadcrumb{background:var(--bg-alt);padding:12px 0;font-size:0.85rem;color:var(--text-light)}
.breadcrumb a{color:var(--primary)}

/* === 通用区块 === */
.section{padding:60px 0}
.section-header{text-align:center;margin-bottom:48px}
.section-header.light .section-title,.section-header.light .section-desc{color:var(--white)}
.section-title{font-size:1.8rem;font-weight:700;color:var(--secondary);margin-bottom:12px}
.section-desc{font-size:1rem;color:var(--text-light);max-width:700px;margin:0 auto;line-height:1.8}
.sub-title{font-size:1.5rem;font-weight:700;color:var(--secondary);margin-bottom:28px;padding-left:16px;border-left:4px solid var(--primary)}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0);transition:var(--transition);cursor:pointer}
.video-card:hover .play-overlay{background:rgba(61,31,92,0.4)}
.play-btn{width:56px;height:56px;border-radius:50%;background:rgba(232,80,122,0.9);position:relative;opacity:0;transform:scale(0.8);transition:var(--transition)}
.video-card:hover .play-btn{opacity:1;transform:scale(1)}
.play-btn::after{content:'';position:absolute;top:50%;left:54%;transform:translate(-50%,-50%);border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:0.75rem}
.video-tag{position:absolute;top:8px;left:8px;background:var(--primary);color:#fff;padding:2px 10px;border-radius:4px;font-size:0.75rem;font-weight:600}
.video-info{padding:14px 16px}
.video-info h3{font-size:0.92rem;font-weight:600;line-height:1.4;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info h3 a{color:var(--text)}
.video-info h3 a:hover{color:var(--primary)}
.video-meta{display:flex;gap:12px;font-size:0.78rem;color:var(--text-light);flex-wrap:wrap}

/* === 分类卡片 === */
.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.category-card{background:var(--white);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.category-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.cat-icon{font-size:2.5rem;margin-bottom:12px}
.category-card h3{font-size:1rem;font-weight:600;color:var(--secondary);margin-bottom:10px}
.category-card p{font-size:0.85rem;color:var(--text-light);line-height:1.7;margin-bottom:14px}
.cat-link{font-size:0.85rem;font-weight:600;color:var(--primary)}

/* === 娱乐专区 === */
.entertainment-section{background:var(--bg-alt)}
.ent-grid{display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:auto auto;gap:16px}
.ent-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/10;cursor:pointer}
.ent-card.ent-large{grid-row:span 2}
.ent-card img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.ent-card:hover img{transform:scale(1.1)}
.ent-overlay{position:absolute;bottom:0;left:0;right:0;padding:20px;background:linear-gradient(transparent,rgba(0,0,0,0.8));color:#fff}
.ent-tag{display:inline-block;background:var(--primary);padding:2px 10px;border-radius:4px;font-size:0.75rem;margin-bottom:8px}
.ent-overlay h4{font-size:1rem;margin-bottom:4px}
.ent-overlay p{font-size:0.8rem;opacity:0.85}

/* === AI区域 === */
.ai-section{position:relative;background-size:cover;background-position:center;background-attachment:fixed}
.ai-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(61,31,92,0.88),rgba(45,15,75,0.92))}
.ai-content{position:relative;z-index:2}
.ai-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:36px}
.ai-card{background:rgba(255,255,255,0.1);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.15);border-radius:var(--radius);padding:28px 20px;text-align:center;color:#fff;transition:var(--transition)}
.ai-card:hover{background:rgba(255,255,255,0.18);transform:translateY(-4px)}
.ai-icon{font-size:2.2rem;margin-bottom:12px}
.ai-card h3{font-size:1rem;margin-bottom:10px;font-weight:600}
.ai-card p{font-size:0.85rem;opacity:0.85;line-height:1.7}
.ai-cta{text-align:center}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:var(--white);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.expert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.expert-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid var(--primary)}
.expert-card h4{font-size:1.1rem;font-weight:700;color:var(--secondary);margin-bottom:4px}
.expert-role{display:block;font-size:0.82rem;color:var(--primary);margin-bottom:12px;font-weight:500}
.expert-card p{font-size:0.85rem;color:var(--text-light);line-height:1.7;margin-bottom:10px}
.expert-awards{font-size:0.78rem;color:var(--accent);margin-bottom:14px}
.expert-actions{display:flex;gap:8px;justify-content:center}
.btn-sm{padding:6px 16px;background:var(--primary);color:#fff;border-radius:20px;font-size:0.8rem;font-weight:500;transition:var(--transition)}
.btn-sm:hover{background:var(--primary-dark);color:#fff}
.btn-sm-outline{padding:6px 16px;border:1px solid var(--primary);color:var(--primary);border-radius:20px;font-size:0.8rem;font-weight:500;transition:var(--transition)}
.btn-sm-outline:hover{background:var(--primary);color:#fff}

/* === 评价区 === */
.reviews-section{background:var(--bg-alt)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-grid.compact{grid-template-columns:repeat(2,1fr)}
.review-card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--border)}
.review-stars{color:var(--accent);font-size:1.2rem;margin-bottom:12px}
.review-text{font-size:0.9rem;color:var(--text);line-height:1.8;margin-bottom:16px;font-style:italic}
.reviewer strong{display:block;font-size:0.9rem;color:var(--secondary)}
.reviewer span{font-size:0.78rem;color:var(--text-light)}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;background:var(--white)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:none;border:none;cursor:pointer;text-align:left}
.faq-question h3{font-size:0.95rem;font-weight:600;color:var(--secondary)}
.faq-arrow{font-size:0.75rem;color:var(--text-light);transition:transform 0.3s ease}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease}
.faq-item.open .faq-answer{max-height:300px}
.faq-answer p{padding:0 20px 16px;font-size:0.9rem;color:var(--text-light);line-height:1.8}

/* === 合作伙伴 === */
.partner-wall{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.partner-item{padding:16px 32px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:0.95rem;font-weight:600;color:var(--secondary);transition:var(--transition)}
.partner-item:hover{border-color:var(--primary);color:var(--primary)}

/* === How-To步骤 === */
.howto-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.step-card{text-align:center;padding:32px 20px}
.step-num{font-size:3rem;font-weight:800;color:var(--primary);opacity:0.3;margin-bottom:12px}
.step-card h4{font-size:1.1rem;font-weight:700;color:var(--secondary);margin-bottom:10px}
.step-card p{font-size:0.9rem;color:var(--text-light);line-height:1.7}

/* === 分享栏 === */
.share-section{background:var(--secondary);padding:32px 0}
.share-bar{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}
.share-bar h3{color:var(--white);font-size:1.1rem}
.share-buttons{display:flex;gap:12px}
.share-btn{padding:8px 20px;border-radius:20px;font-size:0.85rem;font-weight:500;color:#fff;transition:var(--transition)}
.share-btn.wechat{background:#07C160}
.share-btn.weibo{background:#E6162D}
.share-btn.douyin{background:#161823}
.share-btn.bilibili{background:#00A1D6}
.share-btn:hover{transform:translateY(-2px);opacity:0.9;color:#fff}

/* === 页脚 === */
.site-footer{background:var(--secondary);color:rgba(255,255,255,0.8);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-brand img{width:56px;height:56px;border-radius:50%;margin-bottom:12px}
.footer-brand h4{font-size:1.2rem;color:#fff;margin-bottom:8px}
.footer-brand p{font-size:0.85rem;line-height:1.7}
.footer-links h5{color:#fff;font-size:0.95rem;margin-bottom:16px}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{color:rgba(255,255,255,0.7);font-size:0.85rem;transition:var(--transition)}
.footer-links a:hover{color:var(--primary)}
.footer-contact h5{color:#fff;font-size:0.95rem;margin-bottom:16px}
.footer-contact p{font-size:0.85rem;margin-bottom:6px}
.footer-qrcodes{display:flex;gap:16px;margin-top:16px}
.qr-item{text-align:center}
.qr-item img{width:100px;height:100px;border-radius:var(--radius-sm);background:#fff;padding:4px}
.qr-item span{display:block;font-size:0.75rem;margin-top:6px}
.footer-bottom{text-align:center;padding:20px 0;font-size:0.82rem}

/* === 内页Banner === */
.page-banner{position:relative;height:320px;display:flex;align-items:center;justify-content:center;margin-top:68px;background-size:cover;background-position:center}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(61,31,92,0.8),rgba(232,80,122,0.6))}
.banner-content{position:relative;z-index:2;text-align:center;color:#fff;padding:20px}
.banner-content h1{font-size:2.2rem;font-weight:800;margin-bottom:12px}
.banner-content p{font-size:1rem;opacity:0.9}

/* === 筛选栏 === */
.filter-bar{display:flex;gap:8px;margin-bottom:32px;flex-wrap:wrap}
.filter-btn{padding:8px 20px;border:1px solid var(--border);border-radius:20px;background:var(--white);color:var(--text);font-size:0.85rem;cursor:pointer;transition:var(--transition)}
.filter-btn:hover,.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* === 社区功能 === */
.community-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:48px}
.comm-card{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition)}
.comm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.comm-icon{font-size:2.2rem;margin-bottom:12px}
.comm-card h3{font-size:1.05rem;font-weight:700;color:var(--secondary);margin-bottom:10px}
.comm-card p{font-size:0.85rem;color:var(--text-light);line-height:1.7;margin-bottom:14px}
.comm-stats{display:flex;gap:16px;font-size:0.78rem;color:var(--primary);font-weight:500}

/* === 话题列表 === */
.topic-list{max-width:800px}
.topic-item{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--border)}
.topic-hot,.topic-new{display:inline-block;padding:2px 8px;border-radius:4px;font-size:0.75rem;font-weight:600;color:#fff;flex-shrink:0}
.topic-hot{background:#E8507A}
.topic-new{background:#D4A843}
.topic-item a{flex:1;font-size:0.9rem;color:var(--text)}
.topic-item a:hover{color:var(--primary)}
.topic-count{font-size:0.78rem;color:var(--text-light);flex-shrink:0}

/* === AI工具卡片 === */
.ai-tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:48px}
.ai-tool-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.tool-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.tool-icon{font-size:2rem}
.tool-header h3{font-size:1.15rem;font-weight:700;color:var(--secondary)}
.ai-tool-card p{font-size:0.9rem;color:var(--text-light);line-height:1.8;margin-bottom:16px}
.tool-features{list-style:none;margin-bottom:16px}
.tool-features li{padding:4px 0;font-size:0.85rem;color:var(--text);padding-left:20px;position:relative}
.tool-features li::before{content:'✓';position:absolute;left:0;color:var(--primary);font-weight:700}
.tool-stats{font-size:0.85rem;color:var(--primary);font-weight:500}

/* === 专家详情 === */
.expert-detail-grid{display:flex;flex-direction:column;gap:40px}
.expert-detail-card{display:flex;gap:32px;background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);border:1px solid var(--border)}
.expert-photo{flex-shrink:0}
.expert-photo img{width:200px;height:200px;border-radius:50%;object-fit:cover;border:3px solid var(--primary)}
.expert-bio h3{font-size:1.3rem;font-weight:700;color:var(--secondary);margin-bottom:4px}
.expert-bio .expert-role{margin-bottom:14px}
.expert-bio p{font-size:0.9rem;color:var(--text-light);line-height:1.8;margin-bottom:14px}
.expert-highlights{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.expert-highlights span{padding:4px 14px;background:var(--bg-alt);border-radius:20px;font-size:0.8rem;color:var(--primary);font-weight:500}
.expert-bio h4{font-size:1rem;font-weight:600;color:var(--secondary);margin-bottom:8px}
.expert-bio ul{list-style:none}
.expert-bio li{padding:3px 0;font-size:0.85rem;color:var(--text-light);padding-left:16px;position:relative}
.expert-bio li::before{content:'•';position:absolute;left:0;color:var(--primary)}

/* === 关于页面 === */
.about-content{max-width:800px;margin-bottom:48px}
.about-content p{font-size:0.95rem;line-height:1.9;margin-bottom:16px;color:var(--text)}
.timeline{max-width:700px;position:relative;padding-left:32px}
.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--primary)}
.timeline-item{position:relative;margin-bottom:32px;padding-left:24px}
.timeline-item::before{content:'';position:absolute;left:-28px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:2px solid var(--white);box-shadow:0 0 0 2px var(--primary)}
.timeline-date{font-size:0.85rem;color:var(--primary);font-weight:600;margin-bottom:4px}
.timeline-content h4{font-size:1rem;font-weight:700;color:var(--secondary);margin-bottom:4px}
.timeline-content p{font-size:0.85rem;color:var(--text-light)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px}
.stat-card{background:var(--white);border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border)}
.stat-number{font-size:2rem;font-weight:800;color:var(--primary);margin-bottom:4px}
.stat-label{font-size:0.85rem;color:var(--text-light)}
.legal-text{max-width:800px;margin-bottom:48px}
.legal-text p{font-size:0.9rem;color:var(--text-light);line-height:1.8}

/* === 联系页面 === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-items{margin-bottom:32px}
.contact-item{margin-bottom:20px;padding:16px;background:var(--bg-alt);border-radius:var(--radius-sm)}
.contact-item h4{font-size:0.9rem;color:var(--secondary);font-weight:600;margin-bottom:4px}
.contact-item p{font-size:1.05rem;color:var(--primary);font-weight:700;margin-bottom:2px}
.contact-item span{font-size:0.8rem;color:var(--text-light)}
.contact-qr{display:flex;gap:24px}
.contact-qr .qr-item img{width:150px;height:150px;border-radius:var(--radius-sm);background:#fff;padding:6px;border:1px solid var(--border)}
.contact-qr .qr-item span{display:block;text-align:center;font-size:0.82rem;color:var(--text-light);margin-top:8px}
.contact-form .form-group{margin-bottom:20px}
.contact-form label{display:block;font-size:0.9rem;font-weight:600;color:var(--secondary);margin-bottom:6px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:0.9rem;font-family:inherit;transition:var(--transition);background:var(--white)}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(232,80,122,0.1)}

/* === 播放页面 === */
.player-section{padding-top:24px}
.player-layout{display:grid;grid-template-columns:1fr 340px;gap:32px}
.video-player{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--radius);overflow:hidden}
.player-poster{width:100%;height:100%;object-fit:cover}
.player-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.3);cursor:pointer;transition:var(--transition)}
.player-overlay:hover{background:rgba(0,0,0,0.4)}
.big-play-btn{transition:transform 0.3s ease}
.big-play-btn:hover{transform:scale(1.1)}
.player-info{padding:20px 0}
.player-info h1{font-size:1.4rem;font-weight:700;color:var(--secondary);margin-bottom:12px}
.player-meta{display:flex;gap:16px;font-size:0.82rem;color:var(--text-light);margin-bottom:16px;flex-wrap:wrap}
.player-desc{font-size:0.9rem;color:var(--text);line-height:1.8;margin-bottom:16px}
.player-tags{display:flex;gap:8px;flex-wrap:wrap}
.player-tags a{padding:4px 14px;background:var(--bg-alt);border-radius:20px;font-size:0.8rem;color:var(--primary);transition:var(--transition)}
.player-tags a:hover{background:var(--primary);color:#fff}
.player-sidebar h3{font-size:1.1rem;font-weight:700;color:var(--secondary);margin-bottom:16px}
.recommend-list{display:flex;flex-direction:column;gap:12px}
.recommend-item{display:flex;gap:12px;padding:8px;border-radius:var(--radius-sm);transition:var(--transition)}
.recommend-item:hover{background:var(--bg-alt)}
.recommend-item img{width:140px;height:80px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}
.recommend-item h4{font-size:0.85rem;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.recommend-item span{font-size:0.75rem;color:var(--text-light)}

/* === 响应式 === */
@media(max-width:1024px){
    .video-grid{grid-template-columns:repeat(3,1fr)}
    .category-grid{grid-template-columns:repeat(3,1fr)}
    .ai-grid{grid-template-columns:repeat(2,1fr)}
    .expert-grid{grid-template-columns:repeat(2,1fr)}
    .review-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .player-layout{grid-template-columns:1fr}
}
@media(max-width:768px){
    .main-nav{display:none;position:fixed;top:68px;left:0;right:0;background:#fff;padding:20px;box-shadow:var(--shadow);z-index:999}
    .main-nav.open{display:block}
    .nav-list{flex-direction:column}
    .mobile-menu-btn{display:flex}
    .header-search{display:none}
    .hero-title{font-size:1.8rem}
    .hero-stats{gap:20px}
    .video-grid{grid-template-columns:repeat(2,1fr);gap:16px}
    .category-grid{grid-template-columns:1fr 1fr}
    .ent-grid{grid-template-columns:1fr;grid-template-rows:auto}
    .ent-card.ent-large{grid-row:span 1}
    .ai-grid{grid-template-columns:1fr}
    .expert-grid{grid-template-columns:1fr}
    .review-grid{grid-template-columns:1fr}
    .howto-steps{grid-template-columns:1fr}
    .community-features{grid-template-columns:1fr}
    .ai-tools-grid{grid-template-columns:1fr}
    .expert-detail-card{flex-direction:column;align-items:center;text-align:center}
    .contact-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .section{padding:40px 0}
    .section-title{font-size:1.4rem}
    .page-banner{height:240px}
    .banner-content h1{font-size:1.6rem}
}
@media(max-width:480px){
    .video-grid{grid-template-columns:1fr}
    .category-grid{grid-template-columns:1fr}
    .hero-section{min-height:480px}
    .hero-title{font-size:1.5rem}
    .hero-actions{flex-direction:column;align-items:center}
}