/* ===== 高清视频传媒 - 原创样式表 ===== */
/* 品牌色系: 珊瑚粉 #FF6B8A, 玫瑰红 #E84393, 深紫 #6C5CE7, 暖金 #FDCB6E, 深灰 #2D3436 */

/* --- 基础重置 --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#2D3436;background:#FAFAFA;line-height:1.8;overflow-x:hidden}
a{color:#E84393;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B8A}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#2D3436}

/* --- 容器 --- */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#2D3436;position:relative;display:inline-block;padding-bottom:12px}
.section-title h2::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,#FF6B8A,#E84393);border-radius:2px}
.section-title p{color:#636e72;margin-top:10px;font-size:1rem}

/* --- 头部导航 --- */
.site-header{background:#fff;box-shadow:0 2px 20px rgba(0,0,0,.06);position:sticky;top:0;z-index:1000;transition:box-shadow .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap span{font-size:1.4rem;font-weight:800;background:linear-gradient(135deg,#FF6B8A,#E84393);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;border-radius:8px;font-size:.95rem;font-weight:500;color:#2D3436;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:linear-gradient(135deg,#FF6B8A,#E84393);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#2D3436;border-radius:2px;transition:all .3s}

/* --- 搜索框 --- */
.search-bar{background:linear-gradient(135deg,#FF6B8A 0%,#E84393 50%,#6C5CE7 100%);padding:14px 0}
.search-wrap{max-width:600px;margin:0 auto;position:relative}
.search-wrap input{width:100%;padding:12px 50px 12px 20px;border:none;border-radius:30px;font-size:1rem;outline:none;background:#fff;box-shadow:0 4px 15px rgba(0,0,0,.1)}
.search-wrap button{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#FF6B8A,#E84393);border:none;color:#fff;width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:1.1rem;transition:transform .3s}
.search-wrap button:hover{transform:translateY(-50%) scale(1.1)}

/* --- Banner轮播 --- */
.hero-banner{position:relative;overflow:hidden;background:#1a1a2e}
.hero-slide{position:relative;height:480px;background-size:cover;background-position:center;display:none}
.hero-slide.active{display:block}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to right,rgba(45,52,54,.8) 0%,rgba(45,52,54,.3) 100%);display:flex;align-items:center}
.hero-content{padding:0 60px;max-width:600px}
.hero-content h1{font-size:2.6rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.hero-content p{color:rgba(255,255,255,.9);font-size:1.1rem;margin-bottom:24px;line-height:1.8}
.hero-btn{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#FF6B8A,#E84393);color:#fff;border-radius:30px;font-weight:600;transition:all .3s;box-shadow:0 4px 15px rgba(232,67,147,.4)}
.hero-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,67,147,.6);color:#fff}
.hero-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:all .3s}
.hero-dots span.active{background:#FF6B8A;transform:scale(1.2)}

/* --- 传媒卡片 --- */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.video-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(232,67,147,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.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(232,67,147,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .4s}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:"";border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-info{padding:16px}
.video-info h3{font-size:1rem;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:12px;color:#b2bec3;font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;padding:2px 10px;background:linear-gradient(135deg,#FF6B8A20,#E8439320);color:#E84393;border-radius:12px;font-size:.75rem;margin-top:8px}

/* --- 专家展示 --- */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.expert-card{background:#fff;border-radius:16px;padding:30px 20px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s}
.expert-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(108,92,231,.12)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid #FF6B8A;padding:3px}
.expert-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.expert-card h4{font-size:1.1rem;margin-bottom:4px}
.expert-card .role{color:#E84393;font-size:.85rem;margin-bottom:10px}
.expert-card p{color:#636e72;font-size:.85rem;line-height:1.6;margin-bottom:14px}
.expert-btns{display:flex;gap:8px;justify-content:center}
.expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:500;transition:all .3s}
.expert-btns .btn-primary{background:linear-gradient(135deg,#FF6B8A,#E84393);color:#fff}
.expert-btns .btn-outline{border:1px solid #E84393;color:#E84393}
.expert-btns .btn-outline:hover{background:#E84393;color:#fff}

/* --- FAQ --- */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.04);overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#FFF5F7}
.faq-question::after{content:"+";font-size:1.4rem;color:#E84393;transition:transform .3s}
.faq-item.open .faq-question::after{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.open .faq-answer{max-height:300px;padding:0 24px 18px}
.faq-answer p{color:#636e72;line-height:1.8}

/* --- 用户评论 --- */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.review-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s}
.review-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(232,67,147,.1)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#FF6B8A,#6C5CE7);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.review-name{font-weight:600;font-size:.95rem}
.review-date{color:#b2bec3;font-size:.8rem}
.review-stars{color:#FDCB6E;margin-bottom:8px;font-size:.9rem}
.review-text{color:#636e72;font-size:.9rem;line-height:1.7}

/* --- 合作品牌 --- */
.partner-section{background:linear-gradient(135deg,#f8f9fa,#fff5f7)}
.partner-img{border-radius:16px;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,.08)}
.partner-img img{width:100%;display:block}

/* --- How-To指南 --- */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px}
.howto-step{text-align:center;padding:30px 20px;background:#fff;border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s}
.howto-step:hover{transform:translateY(-4px)}
.step-num{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#FF6B8A,#E84393);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:800;margin:0 auto 16px}
.howto-step h4{margin-bottom:8px;font-size:1rem}
.howto-step p{color:#636e72;font-size:.85rem}

/* --- AI赋能 --- */
.ai-section{background:linear-gradient(135deg,#1a1a2e,#16213e);color:#fff}
.ai-section .section-title h2{color:#fff}
.ai-section .section-title p{color:rgba(255,255,255,.7)}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.ai-features{display:grid;gap:20px}
.ai-feature-item{display:flex;gap:16px;padding:20px;background:rgba(255,255,255,.06);border-radius:12px;border:1px solid rgba(255,255,255,.08);transition:all .3s}
.ai-feature-item:hover{background:rgba(255,255,255,.1);border-color:rgba(255,107,138,.3)}
.ai-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#FF6B8A,#E84393);display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.ai-feature-item h4{color:#fff;margin-bottom:4px;font-size:1rem}
.ai-feature-item p{color:rgba(255,255,255,.6);font-size:.85rem}
.ai-img{border-radius:16px;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.3)}

/* --- 社区功能 --- */
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.community-card{background:#fff;border-radius:16px;padding:30px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .4s;border-top:3px solid transparent}
.community-card:hover{transform:translateY(-4px);border-top-color:#E84393}
.community-icon{font-size:2.4rem;margin-bottom:14px}
.community-card h4{margin-bottom:8px;font-size:1.05rem}
.community-card p{color:#636e72;font-size:.85rem;line-height:1.7}

/* --- 联系我们 --- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{display:grid;gap:20px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.contact-icon{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#FF6B8A,#E84393);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;flex-shrink:0}
.contact-item h4{font-size:.95rem;margin-bottom:2px}
.contact-item p{color:#636e72;font-size:.85rem}
.contact-qr{display:flex;gap:24px;justify-content:center;align-items:flex-start}
.qr-item{text-align:center}
.qr-item img{width:160px;height:160px;border-radius:12px;margin-bottom:8px;object-fit:cover}
.qr-item p{font-size:.85rem;color:#636e72}

/* --- 社交分享 --- */
.share-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:24px;font-size:.85rem;font-weight:500;color:#fff;transition:all .3s}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#161823}
.share-bilibili{background:#00A1D6}

/* --- 页脚 --- */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo-wrap span{color:#fff;-webkit-text-fill-color:#fff}
.footer-brand p{margin-top:12px;font-size:.85rem;line-height:1.7}
.footer-col h4{color:#fff;margin-bottom:16px;font-size:1rem}
.footer-col a{display:block;padding:4px 0;color:rgba(255,255,255,.6);font-size:.85rem;transition:color .3s}
.footer-col a:hover{color:#FF6B8A}
.footer-bottom{padding:20px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5)}

/* --- 面包屑 --- */
.breadcrumb{padding:12px 0;font-size:.85rem;color:#b2bec3}
.breadcrumb a{color:#E84393}
.breadcrumb span{margin:0 6px}

/* --- 内页通用 --- */
.page-hero{background:linear-gradient(135deg,#FF6B8A,#E84393,#6C5CE7);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2.2rem;margin-bottom:10px}
.page-hero p{font-size:1rem;opacity:.9}
.content-section{padding:40px 0}
.content-section h2{font-size:1.6rem;margin-bottom:16px;color:#2D3436}
.content-section h3{font-size:1.2rem;margin-bottom:12px;color:#2D3436}
.content-section p{color:#636e72;line-height:1.8;margin-bottom:16px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-item{padding:4px 14px;background:#FFF5F7;color:#E84393;border-radius:16px;font-size:.8rem}

/* --- 响应式 --- */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
  .main-nav.open{display:flex}
  .nav-toggle{display:flex}
  .hero-slide{height:320px}
  .hero-content{padding:0 24px}
  .hero-content h1{font-size:1.8rem}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .section-title h2{font-size:1.6rem}
  .contact-qr{flex-direction:column;align-items:center}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-slide{height:260px}
  .hero-content h1{font-size:1.4rem}
}

/* --- 新闻滚动条 --- */
.news-ticker{display:flex;align-items:center;gap:12px;overflow:hidden;white-space:nowrap}
.ticker-text{display:inline-block;animation:ticker 30s linear infinite}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}
.news-ticker strong{flex-shrink:0}

/* --- 视频时长标签 --- */
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:500}