/* ============================================
   久久综合 - 动物写真视频社区 | 全站样式表
   品牌色彩: #1a1a2e #e94560 #0f3460 #16213e
   ============================================ */

/* === 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;background:#0d1117;color:#eaeaea;line-height:1.8;overflow-x:hidden}
a{color:#e94560;text-decoration:none;transition:color .3s}
a:hover{color:#ff6b81}
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:#fff}

/* === 容器 === */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section-wrap{padding:60px 0}

/* === 顶部导航 === */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:9999;background:rgba(13,17,23,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(233,69,96,.15);transition:all .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.site-logo{display:flex;align-items:center;gap:10px}
.site-logo img{width:42px;height:42px;border-radius:8px}
.site-logo span{font-size:22px;font-weight:800;color:#fff;letter-spacing:1px}
.site-logo .brand-dot{color:#e94560}

/* 导航菜单 */
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:8px 16px;font-size:15px;color:#c9d1d9;border-radius:6px;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(233,69,96,.12)}
.main-nav a::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:0;height:2px;background:#e94560;transition:width .3s;border-radius:2px}
.main-nav a:hover::after,.main-nav a.active::after{width:60%}

/* 移动端菜单 */
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.mobile-toggle span{width:24px;height:2px;background:#eaeaea;border-radius:2px;transition:all .3s}

/* 搜索框 */
.search-bar{background:rgba(15,52,96,.4);border-bottom:1px solid rgba(233,69,96,.1);padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%}
.search-box input{flex:1;padding:10px 18px;background:rgba(30,40,60,.8);border:1px solid rgba(233,69,96,.25);border-right:none;border-radius:8px 0 0 8px;color:#eaeaea;font-size:14px;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#e94560}
.search-box input::placeholder{color:#6e7681}
.search-box button{padding:10px 24px;background:linear-gradient(135deg,#e94560,#0f3460);border:none;color:#fff;font-size:14px;cursor:pointer;border-radius:0 8px 8px 0;transition:opacity .3s;white-space:nowrap}
.search-box button:hover{opacity:.85}

/* === Banner区域 === */
.hero-banner{position:relative;margin-top:68px;height:520px;overflow:hidden}
.hero-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.6)}
.hero-banner .banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,17,23,.3) 0%,rgba(13,17,23,.85) 100%)}
.hero-banner .banner-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 20px}
.hero-banner h1{font-size:42px;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.hero-banner h1 .highlight{color:#e94560}
.hero-banner .banner-desc{font-size:18px;color:#b0b8c4;max-width:700px;margin-bottom:28px;line-height:1.7}
.hero-banner .banner-tags{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.hero-banner .banner-tags span{padding:6px 18px;background:rgba(233,69,96,.15);border:1px solid rgba(233,69,96,.3);border-radius:20px;font-size:13px;color:#e94560}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:13px;color:#6e7681}
.breadcrumb a{color:#8b949e}
.breadcrumb a:hover{color:#e94560}
.breadcrumb span{margin:0 6px;color:#484f58}

/* === 通用标题 === */
.section-title{text-align:center;margin-bottom:45px}
.section-title h2{font-size:32px;margin-bottom:10px}
.section-title h2 .accent{color:#e94560}
.section-title p{color:#8b949e;font-size:16px;max-width:600px;margin:0 auto}
.section-title .title-line{width:60px;height:3px;background:linear-gradient(90deg,#e94560,#0f3460);margin:12px auto 0;border-radius:3px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.video-card{position:relative;border-radius:12px;overflow:hidden;background:#161b22;border:1px solid rgba(233,69,96,.08);transition:all .35s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(233,69,96,.15);border-color:rgba(233,69,96,.25)}
.video-card .card-thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .card-thumb img,.video-card .card-thumb video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .card-thumb img,.video-card:hover .card-thumb video{transform:scale(1.08)}
.video-card .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;background:rgba(233,69,96,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;box-shadow:0 4px 20px rgba(233,69,96,.4)}
.video-card .play-btn::after{content:'';border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card:hover .play-btn,.video-card .play-btn.visible{opacity:1;z-index:5}
.video-card .card-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);padding:2px 8px;border-radius:4px;font-size:12px;color:#fff}
.video-card .card-info{padding:14px}
.video-card .card-title{font-size:14px;font-weight:600;color:#e6edf3;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.5}
.video-card .card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:#6e7681}
.video-card .card-meta .views::before{content:'▶ '}
.video-card .card-meta .likes::before{content:'♥ '}
.video-card .card-meta .comments::before{content:'💬 '}

/* === 动物传媒模块 === */
.media-section{background:linear-gradient(180deg,#0d1117 0%,#111820 100%)}
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.media-item{background:#161b22;border-radius:12px;padding:28px;border:1px solid rgba(233,69,96,.08);transition:all .3s;text-align:center}
.media-item:hover{border-color:rgba(233,69,96,.3);transform:translateY(-4px)}
.media-item .media-icon{width:56px;height:56px;margin:0 auto 16px;background:linear-gradient(135deg,#e94560,#0f3460);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px}
.media-item h3{font-size:18px;margin-bottom:8px}
.media-item p{font-size:14px;color:#8b949e;line-height:1.6}

/* === AI赋能模块 === */
.ai-section{background:#111820}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(145deg,#161b22,#1a2332);border-radius:14px;padding:30px;border:1px solid rgba(15,52,96,.4);position:relative;overflow:hidden;transition:all .3s}
.ai-card:hover{border-color:rgba(233,69,96,.3);box-shadow:0 8px 30px rgba(15,52,96,.2)}
.ai-card::before{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(233,69,96,.05) 0%,transparent 70%);transition:all .5s}
.ai-card:hover::before{top:-30%;right:-30%}
.ai-card h3{font-size:20px;margin-bottom:10px;position:relative}
.ai-card p{font-size:14px;color:#8b949e;line-height:1.7;position:relative}

/* === 社区模块 === */
.community-section{background:linear-gradient(180deg,#111820 0%,#0d1117 100%)}
.community-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.community-card{display:flex;gap:20px;background:#161b22;border-radius:12px;padding:22px;border:1px solid rgba(233,69,96,.08);transition:all .3s}
.community-card:hover{border-color:rgba(233,69,96,.2);transform:translateX(4px)}
.community-card .comm-thumb{width:140px;min-width:140px;border-radius:10px;overflow:hidden}
.community-card .comm-thumb img{width:100%;height:100%;object-fit:cover}
.community-card .comm-info h3{font-size:16px;margin-bottom:6px}
.community-card .comm-info p{font-size:13px;color:#8b949e;line-height:1.6;margin-bottom:8px}
.community-card .comm-stats{display:flex;gap:16px;font-size:12px;color:#6e7681}

/* === 专家展示 === */
.expert-section{background:#0d1117}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#161b22;border-radius:14px;overflow:hidden;border:1px solid rgba(233,69,96,.08);transition:all .3s;text-align:center}
.expert-card:hover{border-color:rgba(233,69,96,.25);transform:translateY(-4px)}
.expert-card .expert-avatar{width:100%;aspect-ratio:1;overflow:hidden}
.expert-card .expert-avatar img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.expert-card:hover .expert-avatar img{transform:scale(1.05)}
.expert-card .expert-info{padding:20px}
.expert-card .expert-info h3{font-size:17px;margin-bottom:4px}
.expert-card .expert-info .role{color:#e94560;font-size:13px;margin-bottom:8px}
.expert-card .expert-info p{font-size:13px;color:#8b949e;line-height:1.5;margin-bottom:12px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:6px 14px;border-radius:6px;font-size:12px;transition:all .3s}
.btn-primary{background:linear-gradient(135deg,#e94560,#c73650);color:#fff;border:none}
.btn-primary:hover{opacity:.85;color:#fff}
.btn-outline{border:1px solid rgba(233,69,96,.4);color:#e94560;background:transparent}
.btn-outline:hover{background:rgba(233,69,96,.1)}

/* === FAQ模块 === */
.faq-section{background:#111820}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#161b22;border-radius:10px;margin-bottom:12px;border:1px solid rgba(233,69,96,.08);overflow:hidden}
.faq-item .faq-q{padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;color:#e6edf3;transition:background .3s}
.faq-item .faq-q:hover{background:rgba(233,69,96,.05)}
.faq-item .faq-q .faq-arrow{transition:transform .3s;color:#e94560;font-size:18px}
.faq-item.open .faq-q .faq-arrow{transform:rotate(180deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:300px;padding:0 22px 18px}
.faq-item .faq-a p{font-size:14px;color:#8b949e;line-height:1.7}

/* === 用户评论 === */
.review-section{background:linear-gradient(180deg,#111820 0%,#0d1117 100%)}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.review-card{background:#161b22;border-radius:12px;padding:24px;border:1px solid rgba(233,69,96,.08)}
.review-card .review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-card .review-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#e94560,#0f3460);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#fff}
.review-card .review-name{font-weight:600;font-size:15px}
.review-card .review-date{font-size:12px;color:#6e7681}
.review-card .review-stars{color:#e94560;font-size:14px;margin-bottom:8px;letter-spacing:2px}
.review-card .review-text{font-size:14px;color:#b0b8c4;line-height:1.7}

/* === 联系我们 === */
.contact-section{background:#0d1117}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-info{background:#161b22;border-radius:14px;padding:30px;border:1px solid rgba(233,69,96,.08)}
.contact-info h3{font-size:20px;margin-bottom:18px;color:#e94560}
.contact-info .info-item{display:flex;gap:12px;margin-bottom:14px;font-size:14px;color:#b0b8c4}
.contact-info .info-item .label{color:#6e7681;min-width:80px}
.contact-qr{display:flex;gap:24px;justify-content:center;align-items:flex-start}
.contact-qr .qr-item{text-align:center}
.contact-qr .qr-item img{width:160px;height:160px;border-radius:10px;margin-bottom:8px}
.contact-qr .qr-item p{font-size:13px;color:#8b949e}

/* === 社交分享 === */
.share-bar{display:flex;gap:10px;justify-content:center;padding:20px 0}
.share-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;transition:all .3s;cursor:pointer}
.share-btn:hover{transform:scale(1.15)}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#fb7299}

/* === 合作品牌 === */
.partner-section{background:#111820}
.partner-logos{display:flex;gap:30px;justify-content:center;align-items:center;flex-wrap:wrap}
.partner-logos .partner-item{width:120px;height:60px;background:#161b22;border-radius:10px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(233,69,96,.08);transition:all .3s;font-size:14px;color:#6e7681;font-weight:600}
.partner-logos .partner-item:hover{border-color:rgba(233,69,96,.3);color:#e94560}

/* === How-To指南 === */
.howto-section{background:linear-gradient(180deg,#0d1117 0%,#111820 100%)}
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto}
.howto-step{text-align:center;padding:24px 16px}
.howto-step .step-num{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#e94560,#0f3460);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:20px;font-weight:800;color:#fff}
.howto-step h4{font-size:15px;margin-bottom:6px}
.howto-step p{font-size:13px;color:#8b949e;line-height:1.5}

/* === 页脚 === */
.site-footer{background:#080c12;border-top:1px solid rgba(233,69,96,.1);padding:40px 0 20px}
.footer-top{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{font-size:16px;margin-bottom:14px;color:#e94560}
.footer-col a{display:block;font-size:13px;color:#6e7681;padding:3px 0;transition:color .3s}
.footer-col a:hover{color:#e94560}
.footer-col p{font-size:13px;color:#6e7681;line-height:1.6}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(233,69,96,.06);font-size:13px;color:#484f58}
.footer-bottom .update-time{margin-top:6px;font-size:12px;color:#6e7681}

/* === 内页通用 === */
.page-hero{margin-top:68px;padding:60px 0;background:linear-gradient(135deg,#0f3460,#1a1a2e);text-align:center}
.page-hero h1{font-size:36px;margin-bottom:10px}
.page-hero p{color:#8b949e;font-size:16px}
.page-content{padding:50px 0}

/* === 响应式 === */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:repeat(2,1fr)}
  .howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:68px;left:0;width:100%;background:#0d1117;flex-direction:column;padding:16px;border-bottom:1px solid rgba(233,69,96,.15)}
  .main-nav.show{display:flex}
  .mobile-toggle{display:flex}
  .hero-banner{height:400px}
  .hero-banner h1{font-size:28px}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .media-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .section-title h2{font-size:24px}
  .footer-top{grid-template-columns:1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .hero-banner{height:320px}
  .hero-banner h1{font-size:22px}
}

/* === 懒加载 === */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

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

/* === MCP前端占位 === */
.mcp-widget{background:#161b22;border-radius:12px;padding:20px;border:1px solid rgba(233,69,96,.08);text-align:center;margin-top:20px}
.mcp-widget .mcp-title{font-size:14px;color:#6e7681;margin-bottom:8px}
.mcp-widget .mcp-status{display:inline-block;padding:4px 12px;background:rgba(233,69,96,.1);border-radius:20px;font-size:12px;color:#e94560}