/* ============================================
   17c一起草 影视传媒 - 全站样式表
   品牌色系：藏青 #1A1E2E | 朱红 #E8453C | 琥珀金 #F5A623
   ============================================ */

/* === 基础重置与全局 === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#2C3E50;background:#F7F8FC;line-height:1.75;overflow-x:hidden}
a{color:#E8453C;text-decoration:none;transition:color .3s}
a:hover{color:#F5A623}
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:#1A1E2E}

/* === 容器 === */
.container{width:100%;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:#1A1E2E;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,#E8453C,#F5A623);border-radius:2px}
.section-title p{color:#6B7B8D;margin-top:10px;font-size:1rem}

/* === 头部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(26,30,46,.95);backdrop-filter:blur(10px);box-shadow:0 2px 20px rgba(0,0,0,.15);transition:all .3s}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px}
.logo img{height:42px;width:auto}
.logo span{font-size:1.4rem;font-weight:800;color:#fff;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{color:rgba(255,255,255,.85);font-size:.9rem;padding:8px 14px;border-radius:6px;transition:all .3s;font-weight:500}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(232,69,60,.2)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.search-bar{background:#1A1E2E;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%;background:rgba(255,255,255,.1);border-radius:30px;overflow:hidden;border:1px solid rgba(255,255,255,.15)}
.search-box input{flex:1;border:none;background:transparent;padding:10px 20px;color:#fff;font-size:.9rem;outline:none}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box button{background:linear-gradient(135deg,#E8453C,#F5A623);border:none;color:#fff;padding:10px 24px;cursor:pointer;font-size:.9rem;font-weight:600;transition:opacity .3s}
.search-box button:hover{opacity:.85}

/* === Hero Banner === */
.hero-banner{position:relative;height:75vh;min-height:480px;overflow:hidden;margin-top:68px}
.hero-banner .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-banner .hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,30,46,.88) 0%,rgba(26,30,46,.6) 50%,rgba(232,69,60,.3) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;color:#fff;padding:0 40px}
.hero-content h1{font-size:3rem;font-weight:900;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.3)}
.hero-content h1 .brand{color:#E8453C}
.hero-content p{font-size:1.15rem;max-width:600px;line-height:1.8;opacity:.9;margin-bottom:28px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:8px;font-weight:600;font-size:.95rem;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#E8453C,#d63a32);color:#fff;box-shadow:0 4px 15px rgba(232,69,60,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,69,60,.5);color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.5)}
.btn-outline:hover{border-color:#F5A623;color:#F5A623}
.hero-stats{display:flex;gap:40px;margin-top:36px}
.hero-stat{text-align:center}
.hero-stat .num{font-size:2rem;font-weight:800;color:#F5A623}
.hero-stat .label{font-size:.8rem;opacity:.7;margin-top:4px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .4s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.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%) scale(0);width:56px;height:56px;background:rgba(232,69,60,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .4s;opacity:0}
.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:3px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1);opacity:1}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;font-size:.75rem;padding:2px 8px;border-radius:4px}
.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;align-items:center;gap:16px;color:#8E99A4;font-size:.8rem}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tags{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.video-tags span{background:#F0F2F5;color:#6B7B8D;font-size:.72rem;padding:3px 10px;border-radius:20px}

/* === 模块卡片 === */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.module-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:all .4s}
.module-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.12)}
.module-card .card-img{height:200px;overflow:hidden}
.module-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.module-card:hover .card-img img{transform:scale(1.06)}
.module-card .card-body{padding:20px}
.module-card .card-body h3{font-size:1.1rem;margin-bottom:8px;color:#1A1E2E}
.module-card .card-body p{color:#6B7B8D;font-size:.9rem;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.module-card .card-footer{padding:0 20px 16px;display:flex;justify-content:space-between;align-items:center}
.card-link{color:#E8453C;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:4px}
.card-link:hover{color:#F5A623}

/* === 体育传媒 === */
.sports-section{background:linear-gradient(135deg,#1A1E2E 0%,#2D3A5C 100%);color:#fff}
.sports-section .section-title h2{color:#fff}
.sports-section .section-title p{color:rgba(255,255,255,.7)}
.sports-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sports-main{grid-column:1/2;grid-row:1/3;border-radius:12px;overflow:hidden;position:relative}
.sports-main img{width:100%;height:100%;object-fit:cover}
.sports-main .overlay-text{position:absolute;bottom:0;left:0;right:0;padding:24px;background:linear-gradient(transparent,rgba(0,0,0,.8))}
.sports-main .overlay-text h3{color:#fff;font-size:1.3rem;margin-bottom:6px}
.sports-main .overlay-text p{color:rgba(255,255,255,.8);font-size:.85rem}
.sports-side{border-radius:12px;overflow:hidden;position:relative}
.sports-side img{width:100%;height:100%;object-fit:cover}
.sports-side .overlay-text{position:absolute;bottom:0;left:0;right:0;padding:16px;background:linear-gradient(transparent,rgba(0,0,0,.8))}
.sports-side .overlay-text h4{color:#fff;font-size:1rem}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:12px;padding:28px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:all .4s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.12)}
.expert-card .avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid #E8453C}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1.1rem;margin-bottom:4px}
.expert-card .title{color:#E8453C;font-size:.85rem;margin-bottom:12px}
.expert-card p{color:#6B7B8D;font-size:.85rem;line-height:1.6;margin-bottom:16px}
.expert-card .expert-btns{display:flex;gap:10px;justify-content:center}
.expert-card .expert-btns a{padding:6px 16px;border-radius:20px;font-size:.8rem;font-weight:600}

/* === 合作品牌墙 === */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:32px;align-items:center}
.partner-item{width:140px;height:70px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(0,0,0,.06);padding:12px;filter:grayscale(1);opacity:.6;transition:all .4s}
.partner-item:hover{filter:grayscale(0);opacity:1;transform:scale(1.05)}
.partner-item span{font-size:1rem;font-weight:700;color:#1A1E2E}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;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;color:#1A1E2E;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#F7F8FC}
.faq-question .arrow{width:20px;height:20px;transition:transform .3s;color:#E8453C;font-size:1.2rem}
.faq-item.active .faq-question .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:300px;padding:0 24px 18px}
.faq-answer p{color:#6B7B8D;line-height:1.8;font-size:.9rem}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 16px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#E8453C,#F5A623);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.review-name{font-weight:600;color:#1A1E2E;font-size:.95rem}
.review-date{color:#8E99A4;font-size:.75rem}
.review-stars{color:#F5A623;margin-bottom:10px;font-size:.9rem;letter-spacing:2px}
.review-text{color:#6B7B8D;font-size:.9rem;line-height:1.7}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h3{font-size:1.3rem;margin-bottom:20px;color:#1A1E2E}
.contact-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.contact-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#E8453C,#F5A623);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;flex-shrink:0}
.contact-item .info h4{font-size:.95rem;color:#1A1E2E;margin-bottom:2px}
.contact-item .info p{color:#6B7B8D;font-size:.85rem}
.qrcode-group{display:flex;gap:24px;margin-top:24px}
.qrcode-item{text-align:center}
.qrcode-item img{width:140px;height:140px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.qrcode-item p{margin-top:8px;font-size:.8rem;color:#6B7B8D}

/* === 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 18px;border-radius:20px;font-size:.85rem;font-weight:500;color:#fff;transition:all .3s;cursor:pointer}
.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:#1A1E2E;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-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:.85rem;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:#E8453C}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.85rem;padding:4px 0;transition:color .3s}
.footer-col a:hover{color:#F5A623}
.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:16px 0;font-size:.85rem;color:#8E99A4}
.breadcrumb a{color:#E8453C}
.breadcrumb span{margin:0 8px;color:#ccc}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,#1A1E2E,#2D3A5C);padding:100px 0 50px;color:#fff;text-align:center;margin-top:68px}
.page-hero h1{font-size:2.2rem;color:#fff;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.7);font-size:1rem}
.content-area{padding:40px 0}
.content-area article{background:#fff;border-radius:12px;padding:32px;box-shadow:0 2px 16px rgba(0,0,0,.06);margin-bottom:24px}
.content-area article h2{font-size:1.4rem;margin-bottom:16px;color:#1A1E2E;border-left:4px solid #E8453C;padding-left:14px}
.content-area article h3{font-size:1.15rem;margin:20px 0 10px;color:#2D3A5C}
.content-area article p{color:#4A5568;line-height:1.85;margin-bottom:14px;font-size:.95rem}

/* === How-To 指南 === */
.howto-steps{counter-reset:step}
.howto-step{display:flex;gap:20px;margin-bottom:24px;align-items:flex-start}
.howto-step::before{counter-increment:step;content:counter(step);width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#E8453C,#F5A623);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;flex-shrink:0}
.howto-step .step-content h4{font-size:1rem;color:#1A1E2E;margin-bottom:6px}
.howto-step .step-content p{color:#6B7B8D;font-size:.9rem}

/* === 数据标签 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag{background:linear-gradient(135deg,rgba(232,69,60,.1),rgba(245,166,35,.1));color:#E8453C;padding:5px 14px;border-radius:20px;font-size:.8rem;font-weight:500;transition:all .3s}
.tag:hover{background:#E8453C;color:#fff}

/* === 响应式 === */
@media(max-width:1024px){
  .sports-grid{grid-template-columns:1fr}
  .sports-main{grid-column:auto;grid-row:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .hero-content h1{font-size:2rem}
  .hero-banner{height:60vh;min-height:400px}
  .hero-stats{gap:20px}
  .hero-stat .num{font-size:1.5rem}
  .main-nav{display:none;position:absolute;top:68px;left:0;width:100%;background:#1A1E2E;flex-direction:column;padding:20px;gap:4px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
  .main-nav.active{display:flex}
  .nav-toggle{display:flex}
  .video-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .section-title h2{font-size:1.6rem}
  .page-hero{padding:80px 0 40px}
  .page-hero h1{font-size:1.6rem}
}
@media(max-width:480px){
  .hero-content{padding:0 20px}
  .hero-content h1{font-size:1.6rem}
  .hero-btns{flex-direction:column}
  .hero-stats{flex-direction:column;gap:12px}
  .search-box{flex-direction:column;border-radius:12px}
  .search-box button{border-radius:0 0 12px 12px}
}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate-in{animation:fadeInUp .6s ease forwards;opacity:0}
.delay-1{animation-delay:.1s}
.delay-2{animation-delay:.2s}
.delay-3{animation-delay:.3s}
.delay-4{animation-delay:.4s}

/* === MCP服务前端占位 === */
.mcp-widget{background:linear-gradient(135deg,#1A1E2E,#2D3A5C);border-radius:12px;padding:24px;color:#fff;text-align:center;margin:20px 0}
.mcp-widget h4{margin-bottom:10px}
.mcp-widget .mcp-status{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.1);padding:6px 16px;border-radius:20px;font-size:.8rem}
.mcp-widget .mcp-status::before{content:"";width:8px;height:8px;border-radius:50%;background:#4ADE80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}