/* 高清视频 - 原创CSS样式 | 粉紫渐变影视传媒主题 */
*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#FF6B9D;--secondary:#A855F7;--accent:#FF8E53;--dark:#1A0A2E;--dark2:#2D1B4E;--light:#FFF5F8;--text:#333;--text-light:#666;--gradient:linear-gradient(135deg,#FF6B9D,#A855F7);--gradient2:linear-gradient(135deg,#FF8E53,#FF6B9D);--shadow:0 4px 20px rgba(168,85,247,.15);--radius:12px}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;color:var(--text);background:var(--light);line-height:1.8}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
a{color:var(--primary);text-decoration:none;transition:all .3s}
a:hover{color:var(--secondary)}
img{max-width:100%;height:auto}
.jammer-wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* 顶部导航 - 原创毛玻璃风格 */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(26,10,46,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,107,157,.2)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto;height:64px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff}
.nav-logo img{border-radius:8px}
.nav-logo span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-menu{display:flex;list-style:none;gap:4px}
.nav-menu a{color:rgba(255,255,255,.8);padding:8px 16px;border-radius:8px;font-size:14px;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{color:#fff;background:rgba(255,107,157,.2)}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer}

/* 搜索栏 - 原创渐变风格 */
.search-bar{background:var(--dark);padding:14px 0;border-bottom:1px solid rgba(168,85,247,.15)}
.search-box{display:flex;max-width:560px;margin:0 auto;border-radius:28px;overflow:hidden;background:var(--dark2);border:1px solid rgba(255,107,157,.3)}
.search-box input{flex:1;padding:10px 20px;border:none;background:transparent;color:#fff;font-size:14px;outline:none}
.search-box input::placeholder{color:rgba(255,255,255,.4)}
.search-box button{padding:10px 28px;background:var(--gradient);border:none;color:#fff;cursor:pointer;font-size:14px;font-weight:600;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* Hero区域 - 原创全屏视觉 */
.hero-section{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;background:var(--dark)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,10,46,.85),rgba(168,85,247,.4))}
.hero-content{position:relative;z-index:2;padding:60px 20px;max-width:1200px;margin:0 auto;width:100%}
.hero-content h1{font-size:42px;color:#fff;margin-bottom:16px;line-height:1.3}
.hero-content h1 span{background:var(--gradient2);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-content p{color:rgba(255,255,255,.85);font-size:18px;max-width:600px;margin-bottom:28px;line-height:1.8}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:var(--gradient);color:#fff;border-radius:28px;font-weight:600;font-size:15px;transition:transform .3s,box-shadow .3s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,157,.4);color:#fff}
.btn-outline{display:inline-block;padding:12px 32px;border:2px solid rgba(255,255,255,.5);color:#fff;border-radius:28px;font-weight:600;font-size:15px;transition:all .3s}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}

/* 通用Section */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-dark{background:var(--dark);color:#fff}
.section-gradient{background:linear-gradient(180deg,#FFF5F8,#F0E6FF)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:28px;margin-bottom:10px;position:relative;display:inline-block}
.section-title h2::after{content:'';position:absolute;bottom:-6px;left:50%;transform:translateX(-50%);width:50px;height:3px;background:var(--gradient);border-radius:3px}
.section-dark .section-title h2{color:#fff}
.section-title p{color:var(--text-light);margin-top:14px;font-size:15px}
.section-dark .section-title p{color:rgba(255,255,255,.7)}

/* 视频卡片网格 - 原创双排瀑布流 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(168,85,247,.2)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;cursor:pointer;background:#1A0A2E}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.08)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;background:rgba(255,107,157,.85);border-radius:50%;opacity:0;transition:opacity .3s,transform .3s;display:flex;align-items:center;justify-content:center}
.play-btn::after{content:'';width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1.1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px}
.video-stats{position:absolute;bottom:8px;left:8px;display:flex;gap:10px;color:#fff;font-size:12px}
.video-stats span{background:rgba(0,0,0,.6);padding:2px 8px;border-radius:4px}
.video-info{padding:16px}
.video-info h3{font-size:15px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .meta{display:flex;justify-content:space-between;color:var(--text-light);font-size:13px}
.video-info .tags{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}
.video-info .tags span{background:linear-gradient(135deg,rgba(255,107,157,.1),rgba(168,85,247,.1));color:var(--primary);padding:3px 10px;border-radius:12px;font-size:12px}

/* 横向滚动视频条 - 原创TikTok风格 */
.scroll-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.scroll-row::-webkit-scrollbar{height:4px}
.scroll-row::-webkit-scrollbar-thumb{background:var(--gradient);border-radius:4px}
.scroll-card{flex:0 0 220px;scroll-snap-align:start;border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.scroll-card .thumb{position:relative;height:300px;overflow:hidden}
.scroll-card .thumb img{width:100%;height:100%;object-fit:cover}
.scroll-card .play-btn{width:44px;height:44px}
.scroll-card:hover .play-btn{opacity:1}
.scroll-card .info{padding:10px 12px}
.scroll-card .info h4{font-size:13px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* AI赋能卡片 - 原创玻璃态 */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,.08);backdrop-filter:blur(10px);border:1px solid rgba(255,107,157,.2);border-radius:var(--radius);padding:28px;text-align:center;transition:transform .3s,border-color .3s}
.ai-card:hover{transform:translateY(-4px);border-color:var(--primary)}
.ai-icon{font-size:40px;margin-bottom:16px}
.ai-card h4{font-size:17px;margin-bottom:10px;color:#fff}
.ai-card p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.7}

/* 专家展示 - 原创卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);border-top:3px solid transparent;background-image:linear-gradient(#fff,#fff),var(--gradient);background-origin:border-box;background-clip:padding-box,border-box;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-avatar{width:80px;height:80px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:36px;color:#fff}
.expert-card h4{font-size:18px;margin-bottom:6px}
.expert-card .role{color:var(--primary);font-size:13px;margin-bottom:12px}
.expert-card p{color:var(--text-light);font-size:14px;line-height:1.7}
.expert-btns{display:flex;gap:10px;justify-content:center;margin-top:16px}
.expert-btns a{padding:6px 18px;border-radius:20px;font-size:13px;border:1px solid var(--primary);color:var(--primary);transition:all .3s}
.expert-btns a:hover{background:var(--primary);color:#fff}

/* FAQ - 原创手风琴 */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid rgba(168,85,247,.15);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:border-color .3s}
.faq-item:hover{border-color:var(--primary)}
.faq-q{padding:18px 24px;cursor:pointer;font-weight:600;display:flex;justify-content:space-between;align-items:center;background:rgba(255,107,157,.03)}
.faq-q::after{content:'+';font-size:22px;color:var(--primary);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s,padding .4s;color:var(--text-light);line-height:1.8}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}

/* 用户评论 - 原创气泡风格 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.review-card::before{content:'\201C';position:absolute;top:12px;left:16px;font-size:48px;color:rgba(255,107,157,.15);font-family:Georgia,serif;line-height:1}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:700}
.review-name{font-weight:600;font-size:15px}
.review-date{color:var(--text-light);font-size:12px}
.review-stars{color:#FFB800;font-size:14px;margin-bottom:8px}
.review-text{color:var(--text-light);font-size:14px;line-height:1.8}

/* 联系卡片 */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.contact-card h4{font-size:17px;margin-bottom:12px;color:var(--dark)}
.contact-card p{color:var(--text-light);font-size:14px;line-height:2}
.contact-card img{border-radius:8px;margin-top:8px}

/* 社交分享 */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:20px;color:#fff;font-size:13px;transition:transform .3s}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#000}
.share-bilibili{background:#00A1D6}

/* 合作品牌墙 */
.brand-wall{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;align-items:center}
.brand-wall span{background:#fff;padding:14px 28px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.06);font-size:15px;color:var(--text-light);font-weight:600}

/* HowTo步骤 */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.howto-step{text-align:center;padding:24px 16px}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--gradient);color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.howto-step h4{font-size:15px;margin-bottom:8px}
.howto-step p{color:var(--text-light);font-size:13px;line-height:1.6}

/* 面包屑 */
.breadcrumb{margin-bottom:16px;font-size:13px;color:rgba(255,255,255,.6)}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb span{margin:0 6px}

/* 页面Hero */
.page-hero{background:var(--dark);padding:48px 0 36px;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-50%;right:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,107,157,.15),transparent 70%);border-radius:50%}
.page-hero h1{color:#fff;font-size:32px;margin-bottom:10px;position:relative}
.page-hero p{color:rgba(255,255,255,.7);font-size:15px;position:relative}

/* 分类标签 */
.category-tabs{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap;justify-content:center}
.tab{padding:8px 22px;border-radius:20px;border:1px solid rgba(168,85,247,.2);background:transparent;color:var(--text-light);cursor:pointer;font-size:14px;transition:all .3s}
.tab.active,.tab:hover{background:var(--gradient);color:#fff;border-color:transparent}

/* 页脚 - 原创深色风格 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--gradient)}
.footer-col p{font-size:13px;line-height:2}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{color:rgba(255,255,255,.6);font-size:13px;transition:color .3s}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{text-align:center;padding:20px 0;font-size:13px;color:rgba(255,255,255,.5)}

/* 响应式 */
@media(max-width:992px){
.video-grid,.ai-grid,.expert-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
.howto-steps{grid-template-columns:repeat(2,1fr)}
.contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
.nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--dark);flex-direction:column;padding:16px;gap:4px}
.nav-menu.show{display:flex}
.mobile-toggle{display:block}
.hero-content h1{font-size:28px}
.hero-content p{font-size:15px}
.video-grid,.ai-grid,.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr 1fr}
.section-title h2{font-size:22px}
}