/* 玩物直播 - 主样式文件 */
/* 全局重置 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#222;background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{cursor:pointer;border:none;outline:none}
input,textarea{outline:none;border:none}

/* 颜色变量 */
:root{
  --primary:#e8392a;
  --primary-dark:#c42d1f;
  --primary-light:#ff6b5b;
  --accent:#ff9500;
  --dark:#1a1a2e;
  --dark2:#16213e;
  --text:#333;
  --text-muted:#888;
  --border:#eee;
  --bg-light:#f8f9fa;
  --bg-dark:#0f0f1a;
  --white:#fff;
  --shadow:0 4px 20px rgba(0,0,0,.1);
  --shadow-lg:0 8px 40px rgba(0,0,0,.15);
  --radius:10px;
  --radius-lg:16px;
}

/* 容器 */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container-fluid{width:100%;padding:0 20px}

/* 头部 */
.site-header{background:var(--dark);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo-wrap{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-img{width:44px;height:44px;border-radius:10px;object-fit:cover}
.logo-text{color:#fff;font-size:1.3rem;font-weight:700;letter-spacing:1px;white-space:nowrap}
.logo-text span{color:var(--primary)}

/* 导航 */
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{color:rgba(255,255,255,.85);padding:8px 14px;border-radius:6px;font-size:.92rem;transition:all .2s;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#fff;background:var(--primary)}

/* 搜索框 */
.search-wrap{display:flex;align-items:center;background:rgba(255,255,255,.1);border-radius:24px;padding:6px 16px;gap:8px;min-width:200px;max-width:280px;border:1px solid rgba(255,255,255,.15);transition:all .2s}
.search-wrap:focus-within{background:rgba(255,255,255,.15);border-color:var(--primary)}
.search-input{background:transparent;color:#fff;font-size:.9rem;flex:1;min-width:0}
.search-input::placeholder{color:rgba(255,255,255,.5)}
.search-btn{color:rgba(255,255,255,.7);font-size:1rem;background:none;padding:0;transition:color .2s}
.search-btn:hover{color:#fff}

/* 搜索栏下方 */
.search-bar-row{background:var(--dark2);padding:10px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.search-bar-inner{display:flex;align-items:center;gap:16px}
.hot-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hot-tags span{color:rgba(255,255,255,.5);font-size:.82rem}
.hot-tag{color:rgba(255,255,255,.7);font-size:.82rem;padding:3px 10px;border:1px solid rgba(255,255,255,.15);border-radius:12px;transition:all .2s}
.hot-tag:hover{color:#fff;border-color:var(--primary);background:rgba(232,57,42,.15)}

/* 轮播Banner */
.hero-banner{position:relative;overflow:hidden;background:var(--bg-dark)}
.swiper-container{position:relative;width:100%;height:520px}
.swiper-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity .8s ease}
.swiper-slide.active{opacity:1}
.slide-img{width:100%;height:100%;object-fit:cover}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(to right,rgba(0,0,0,.7) 0%,rgba(0,0,0,.2) 60%,transparent 100%)}
.slide-content{position:absolute;top:50%;left:10%;transform:translateY(-50%);color:#fff;max-width:500px}
.slide-tag{display:inline-block;background:var(--primary);color:#fff;font-size:.78rem;padding:4px 12px;border-radius:4px;margin-bottom:16px;letter-spacing:1px}
.slide-title{font-size:2.4rem;font-weight:700;line-height:1.3;margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.slide-desc{font-size:1rem;opacity:.85;margin-bottom:24px;line-height:1.6}
.slide-btns{display:flex;gap:12px}
.btn-primary{background:var(--primary);color:#fff;padding:12px 28px;border-radius:6px;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-outline{border:2px solid rgba(255,255,255,.7);color:#fff;padding:10px 24px;border-radius:6px;font-size:.95rem;transition:all .2s}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.swiper-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.swiper-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:all .3s}
.swiper-dot.active{background:#fff;width:24px;border-radius:4px}
.swiper-prev,.swiper-next{position:absolute;top:50%;transform:translateY(-50%);z-index:10;background:rgba(0,0,0,.4);color:#fff;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;font-size:1.2rem}
.swiper-prev{left:20px}
.swiper-next{right:20px}
.swiper-prev:hover,.swiper-next:hover{background:var(--primary)}

/* 统计数字 */
.stats-bar{background:var(--dark);padding:20px 0}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1)}
.stat-item{text-align:center;padding:16px;background:var(--dark)}
.stat-num{font-size:1.8rem;font-weight:700;color:var(--primary);line-height:1}
.stat-label{font-size:.82rem;color:rgba(255,255,255,.6);margin-top:4px}

/* 板块标题 */
.section{padding:60px 0}
.section-alt{background:var(--bg-light)}
.section-header{text-align:center;margin-bottom:40px}
.section-tag{display:inline-block;background:rgba(232,57,42,.1);color:var(--primary);font-size:.8rem;padding:4px 14px;border-radius:20px;margin-bottom:12px;font-weight:600;letter-spacing:1px}
.section-title{font-size:1.9rem;font-weight:700;color:var(--dark);margin-bottom:10px}
.section-title span{color:var(--primary)}
.section-desc{color:var(--text-muted);font-size:.95rem;max-width:500px;margin:0 auto}
.section-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.section-header-row .section-title{font-size:1.4rem;margin:0}
.more-link{color:var(--primary);font-size:.88rem;display:flex;align-items:center;gap:4px}
.more-link:hover{text-decoration:underline}

/* 视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.video-grid-3{grid-template-columns:repeat(3,1fr)}
.video-grid-2{grid-template-columns:repeat(2,1fr)}
.video-card{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:all .3s;cursor:pointer}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#111}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:52px;height:52px;background:rgba(255,255,255,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .3s;z-index:2}
.play-btn::after{content:'';border-left:18px solid var(--primary);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;font-size:.75rem;padding:2px 7px;border-radius:4px}
.video-live-badge{position:absolute;top:8px;left:8px;background:var(--primary);color:#fff;font-size:.72rem;padding:3px 8px;border-radius:4px;font-weight:600;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.7}}
.video-info{padding:14px}
.video-title{font-size:.92rem;font-weight:600;color:var(--text);line-height:1.4;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:var(--text-muted)}
.video-author{display:flex;align-items:center;gap:6px}
.author-avatar{width:22px;height:22px;border-radius:50%;object-fit:cover}
.video-stats{display:flex;gap:10px}
.video-tag{display:inline-block;background:rgba(232,57,42,.08);color:var(--primary);font-size:.72rem;padding:2px 8px;border-radius:10px;margin-top:6px}

/* 特色大卡片 */
.featured-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.featured-main{grid-row:span 2}
.featured-card{border-radius:var(--radius-lg);overflow:hidden;position:relative;cursor:pointer}
.featured-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.featured-card:hover img{transform:scale(1.03)}
.featured-card .play-btn{transform:translate(-50%,-50%) scale(0)}
.featured-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.featured-main{height:420px}
.featured-sub{height:196px}
.featured-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 60%)}
.featured-content{position:absolute;bottom:0;left:0;right:0;padding:20px;color:#fff}
.featured-content .video-title{color:#fff;font-size:1rem;-webkit-line-clamp:2}
.featured-content .video-meta{color:rgba(255,255,255,.7)}

/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:all .3s;text-align:center}
.expert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.expert-avatar-wrap{position:relative;padding:30px 30px 0}
.expert-avatar{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto;border:4px solid var(--primary)}
.expert-badge{position:absolute;top:20px;right:20px;background:var(--accent);color:#fff;font-size:.72rem;padding:3px 10px;border-radius:10px}
.expert-body{padding:16px 20px 24px}
.expert-name{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:4px}
.expert-title{color:var(--primary);font-size:.85rem;margin-bottom:10px}
.expert-desc{color:var(--text-muted);font-size:.85rem;line-height:1.6;margin-bottom:14px}
.expert-awards{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:14px}
.award-tag{background:rgba(232,57,42,.08);color:var(--primary);font-size:.72rem;padding:3px 10px;border-radius:10px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.btn-sm{padding:7px 16px;border-radius:6px;font-size:.82rem;font-weight:600;transition:all .2s}
.btn-sm-primary{background:var(--primary);color:#fff}
.btn-sm-primary:hover{background:var(--primary-dark)}
.btn-sm-outline{border:1px solid var(--primary);color:var(--primary)}
.btn-sm-outline:hover{background:rgba(232,57,42,.08)}

/* 新闻列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.news-img{position:relative;padding-top:60%;overflow:hidden}
.news-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-img img{transform:scale(1.05)}
.news-cat{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;font-size:.72rem;padding:3px 10px;border-radius:4px}
.news-body{padding:16px}
.news-title{font-size:.95rem;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title:hover{color:var(--primary)}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:var(--text-muted)}
.news-list-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.news-list-item:last-child{border-bottom:none}
.news-list-img{width:120px;height:80px;border-radius:8px;object-fit:cover;flex-shrink:0}
.news-list-body{flex:1}
.news-list-title{font-size:.92rem;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list-title:hover{color:var(--primary)}
.news-list-meta{font-size:.78rem;color:var(--text-muted)}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;cursor:pointer;font-weight:600;color:var(--dark);transition:background .2s}
.faq-q:hover{background:rgba(232,57,42,.04)}
.faq-q.open{background:rgba(232,57,42,.06);color:var(--primary)}
.faq-icon{width:24px;height:24px;border-radius:50%;background:var(--bg-light);display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:transform .3s;flex-shrink:0}
.faq-q.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-a{padding:0 20px;max-height:0;overflow:hidden;transition:all .3s;color:var(--text-muted);font-size:.92rem;line-height:1.7}
.faq-a.open{padding:0 20px 18px;max-height:300px}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.review-card{background:#fff;border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow);border-top:3px solid var(--primary)}
.review-stars{color:#f5a623;font-size:1rem;margin-bottom:10px;letter-spacing:2px}
.review-text{color:var(--text);font-size:.9rem;line-height:1.7;margin-bottom:14px}
.review-user{display:flex;align-items:center;gap:10px}
.review-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:.85rem;font-weight:700;flex-shrink:0}
.review-name{font-weight:600;font-size:.88rem;color:var(--dark)}
.review-date{font-size:.75rem;color:var(--text-muted)}

/* 合作品牌 */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;align-items:center}
.partner-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;transition:all .2s;font-weight:700;font-size:.9rem;color:var(--text-muted)}
.partner-item:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow)}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info h3{font-size:1.3rem;font-weight:700;color:var(--dark);margin-bottom:20px}
.contact-item{display:flex;gap:14px;margin-bottom:16px;align-items:flex-start}
.contact-icon{width:40px;height:40px;border-radius:10px;background:rgba(232,57,42,.1);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.1rem;flex-shrink:0}
.contact-label{font-size:.8rem;color:var(--text-muted);margin-bottom:2px}
.contact-value{font-size:.95rem;color:var(--text);font-weight:500}
.qr-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.qr-card{text-align:center;background:var(--bg-light);border-radius:var(--radius);padding:20px}
.qr-code{width:120px;height:120px;margin:0 auto 10px;background:#fff;border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.qr-label{font-size:.85rem;color:var(--text-muted)}

/* 社交分享 */
.share-bar{background:var(--bg-light);padding:20px 0;border-top:1px solid var(--border)}
.share-inner{display:flex;align-items:center;gap:16px}
.share-label{font-size:.9rem;color:var(--text-muted);flex-shrink:0}
.share-btns{display:flex;gap:10px;flex-wrap:wrap}
.share-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:20px;font-size:.85rem;font-weight:600;transition:all .2s;cursor:pointer}
.share-weixin{background:#07c160;color:#fff}
.share-weibo{background:#e6162d;color:#fff}
.share-douyin{background:#000;color:#fff}
.share-bilibili{background:#00a1d6;color:#fff}
.share-btn:hover{opacity:.85;transform:translateY(-1px)}

/* 底部 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo-text{font-size:1.4rem;margin-bottom:12px;display:block}
.footer-brand p{font-size:.88rem;line-height:1.8;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.social-btn{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:all .2s;color:rgba(255,255,255,.7)}
.social-btn:hover{background:var(--primary);color:#fff}
.footer-col h4{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid var(--primary);display:inline-block}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:.85rem;color:rgba(255,255,255,.5);transition:color .2s}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:gap}
.footer-copyright{font-size:.82rem;color:rgba(255,255,255,.4)}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:.82rem;color:rgba(255,255,255,.4);transition:color .2s}
.footer-links a:hover{color:rgba(255,255,255,.7)}
.update-time{font-size:.78rem;color:rgba(255,255,255,.35);margin-top:4px}

/* 面包屑 */
.breadcrumb{padding:14px 0;font-size:.85rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 6px;opacity:.5}

/* 内页标题 */
.page-hero{background:linear-gradient(135deg,var(--dark) 0%,var(--dark2) 100%);padding:50px 0;color:#fff;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-50%;right:-10%;width:600px;height:600px;border-radius:50%;background:rgba(232,57,42,.08);pointer-events:none}
.page-hero-title{font-size:2rem;font-weight:700;margin-bottom:8px}
.page-hero-desc{font-size:.95rem;opacity:.7;max-width:600px}

/* 侧边栏 */
.content-layout{display:grid;grid-template-columns:1fr 300px;gap:30px;align-items:start}
.sidebar-widget{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:20px}
.widget-title{font-size:1rem;font-weight:700;color:var(--dark);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--primary)}
.hot-list li{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);align-items:flex-start}
.hot-list li:last-child{border-bottom:none}
.hot-num{width:22px;height:22px;border-radius:4px;background:var(--bg-light);color:var(--text-muted);font-size:.78rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hot-list li:nth-child(1) .hot-num,.hot-list li:nth-child(2) .hot-num,.hot-list li:nth-child(3) .hot-num{background:var(--primary);color:#fff}
.hot-list a{font-size:.85rem;color:var(--text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-list a:hover{color:var(--primary)}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-item{background:var(--bg-light);color:var(--text-muted);font-size:.8rem;padding:5px 12px;border-radius:20px;transition:all .2s}
.tag-item:hover{background:var(--primary);color:#fff}

/* 用户评论区 */
.comment-section{margin-top:40px}
.comment-title{font-size:1.2rem;font-weight:700;color:var(--dark);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.comment-count{background:var(--primary);color:#fff;font-size:.78rem;padding:2px 10px;border-radius:10px}
.comment-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--border)}
.comment-item:last-child{border-bottom:none}
.comment-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem;flex-shrink:0}
.comment-body{flex:1}
.comment-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.comment-name{font-weight:600;font-size:.9rem;color:var(--dark)}
.comment-time{font-size:.78rem;color:var(--text-muted)}
.comment-text{font-size:.9rem;color:var(--text);line-height:1.7}
.comment-reply{font-size:.8rem;color:var(--primary);margin-top:6px;cursor:pointer}

/* 问答区 */
.qa-item{background:var(--bg-light);border-radius:var(--radius);padding:18px;margin-bottom:14px}
.qa-q{display:flex;gap:10px;margin-bottom:12px}
.qa-q-icon{background:var(--primary);color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0;margin-top:2px}
.qa-q-text{font-weight:600;color:var(--dark);font-size:.92rem;line-height:1.5}
.qa-a{display:flex;gap:10px;padding-left:4px}
.qa-a-icon{background:var(--accent);color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0;margin-top:2px}
.qa-a-text{color:var(--text-muted);font-size:.88rem;line-height:1.7}

/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:40px}
.page-btn{width:36px;height:36px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.88rem;border:1px solid var(--border);color:var(--text);transition:all .2s}
.page-btn:hover,.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 响应式 */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:10px}
  .main-nav{display:none}
  .search-wrap{min-width:0;flex:1}
  .swiper-container{height:280px}
  .slide-title{font-size:1.4rem}
  .slide-content{left:5%;max-width:90%}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .video-grid-3{grid-template-columns:repeat(2,1fr)}
  .featured-grid{grid-template-columns:1fr}
  .featured-main{height:240px;grid-row:auto}
  .expert-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .content-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center}
  .section{padding:40px 0}
  .section-title{font-size:1.5rem}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .slide-btns{flex-direction:column}
  .btn-primary,.btn-outline{text-align:center;justify-content:center}
}

/* 工具类 */
.text-center{text-align:center}
.text-primary{color:var(--primary)}
.mt-20{margin-top:20px}
.mt-40{margin-top:40px}
.mb-20{margin-bottom:20px}
.mb-40{margin-bottom:40px}
.d-flex{display:flex}
.align-center{align-items:center}
.gap-10{gap:10px}
.gap-20{gap:20px}
.w-100{width:100%}
.rounded{border-radius:var(--radius)}
.shadow{box-shadow:var(--shadow)}
.bg-white{background:#fff}
.p-20{padding:20px}

/* 动画 */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.fade-in-up{animation:fadeInUp .5s ease forwards}
.lazy{opacity:0;transition:opacity .4s}
.lazy.loaded{opacity:1}

/* 直播标签 */
.live-tag{display:inline-flex;align-items:center;gap:5px;background:var(--primary);color:#fff;font-size:.75rem;padding:3px 10px;border-radius:4px;font-weight:600}
.live-dot{width:7px;height:7px;border-radius:50%;background:#fff;animation:pulse 1.5s infinite}

/* 视频解说样式 */
.explain-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;gap:0;transition:all .3s}
.explain-card:hover{box-shadow:var(--shadow-lg)}
.explain-thumb{width:200px;flex-shrink:0;position:relative;overflow:hidden}
.explain-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.explain-card:hover .explain-thumb img{transform:scale(1.05)}
.explain-body{padding:16px;flex:1}
.explain-title{font-size:.95rem;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.5}
.explain-desc{font-size:.85rem;color:var(--text-muted);line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 移动端菜单 */
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.mobile-menu-btn span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
@media(max-width:768px){.mobile-menu-btn{display:flex}}

/* 回到顶部 */
.back-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 14px rgba(232,57,42,.4);transition:all .3s;z-index:999;opacity:0;pointer-events:none;font-size:1.1rem}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(232,57,42,.5)}

/* 加载动画 */
.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}