/* ============================================
   色虎 全站样式表 - 原创设计
   品牌色系：色虎粉 #FF6B9D / 深玫红 #C44569 / 暖金 #F8B500
   ============================================ */

/* === 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","Hiragino Sans GB",Arial,sans-serif;color:#2D2D3A;background:#FFF8FA;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .3s}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}

/* === 通用容器 === */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:2rem;color:#C44569;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,#FF6B9D,#F8B500);border-radius:2px}
.section-title p{color:#8E8EA0;margin-top:10px;font-size:1rem}

/* === 顶部导航 === */
.top-header{background:linear-gradient(135deg,#1A1A2E 0%,#2D2D3A 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.15)}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo-area{display:flex;align-items:center;gap:10px}
.logo-area img{height:42px;width:auto}
.logo-area .brand-name{color:#fff;font-size:1.4rem;font-weight:700}
.logo-area .brand-name span{color:#FF6B9D}
.nav-menu{display:flex;gap:6px}
.nav-menu a{color:#ddd;padding:8px 16px;border-radius:20px;font-size:.95rem;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{background:#FF6B9D;color:#fff}
.search-box{position:relative}
.search-box input{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;padding:8px 36px 8px 14px;border-radius:20px;font-size:.9rem;width:200px;transition:all .3s}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box input:focus{outline:none;border-color:#FF6B9D;width:260px;background:rgba(255,255,255,.18)}
.search-box .search-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;color:#FF6B9D;cursor:pointer;font-size:1.1rem}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* === Hero轮播 === */
.hero-section{position:relative;height:520px;overflow:hidden}
.hero-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity 1s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to bottom,rgba(26,26,46,.3),rgba(26,26,46,.75))}
.hero-content{position:absolute;bottom:80px;left:50%;transform:translateX(-50%);text-align:center;color:#fff;width:90%;max-width:800px}
.hero-content h1{font-size:2.6rem;margin-bottom:15px;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.hero-content p{font-size:1.15rem;opacity:.9;margin-bottom:25px}
.hero-content .hero-btn{display:inline-block;padding:12px 36px;background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff;border-radius:30px;font-size:1rem;font-weight:600;transition:transform .3s,box-shadow .3s}
.hero-content .hero-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,157,.4)}
.hero-dots{position:absolute;bottom:25px;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:#FF6B9D;transform:scale(1.2)}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:20px}
.video-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;cursor:pointer;position:relative}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(255,107,157,.15)}
.video-card .thumb{position:relative;padding-top:56.25%;overflow:hidden}
.video-card .thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .thumb img{transform:scale(1.08)}
.video-card .play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:50px;height:50px;background:rgba(255,107,157,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.video-card:hover .play-icon{opacity:1}
.video-card .play-icon::after{content:'';border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.video-card .card-info{padding:14px 16px}
.video-card .card-info h3{font-size:.95rem;color:#2D2D3A;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-card .card-info .meta{display:flex;justify-content:space-between;font-size:.8rem;color:#8E8EA0}
.video-card .card-info .meta .views{color:#FF6B9D}
.video-card .tag{position:absolute;top:10px;left:10px;background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff;padding:3px 10px;border-radius:12px;font-size:.75rem;font-weight:600}
.video-card .duration{position:absolute;top:10px;right:10px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:8px;font-size:.75rem}

/* === 服务模块 === */
.services-section{padding:70px 0;background:#fff}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.service-item{text-align:center;padding:40px 25px;border-radius:16px;background:linear-gradient(145deg,#FFF8FA,#fff);border:1px solid rgba(255,107,157,.1);transition:all .3s}
.service-item:hover{border-color:#FF6B9D;box-shadow:0 8px 30px rgba(255,107,157,.12)}
.service-item .icon{width:70px;height:70px;margin:0 auto 20px;background:linear-gradient(135deg,#FF6B9D,#F8B500);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.service-item h3{font-size:1.15rem;color:#C44569;margin-bottom:10px}
.service-item p{color:#8E8EA0;font-size:.9rem;line-height:1.6}

/* === AI赋能专区 === */
.ai-section{padding:70px 0;background:linear-gradient(135deg,#1A1A2E,#2D2D3A);color:#fff;position:relative;overflow:hidden}
.ai-section::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,107,157,.15),transparent);border-radius:50%}
.ai-section .section-title h2{color:#FF6B9D}
.ai-section .section-title p{color:rgba(255,255,255,.6)}
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.ai-grid .ai-image{border-radius:16px;overflow:hidden;box-shadow:0 10px 40px rgba(0,0,0,.3)}
.ai-grid .ai-image img{width:100%;height:auto}
.ai-features{display:flex;flex-direction:column;gap:20px}
.ai-feature-item{display:flex;gap:16px;padding:20px;background:rgba(255,255,255,.06);border-radius:12px;border:1px solid rgba(255,107,157,.15);transition:all .3s}
.ai-feature-item:hover{background:rgba(255,107,157,.1);border-color:#FF6B9D}
.ai-feature-item .num{width:40px;height:40px;min-width:40px;background:linear-gradient(135deg,#FF6B9D,#C44569);border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.ai-feature-item h4{color:#F8B500;margin-bottom:4px;font-size:1rem}
.ai-feature-item p{color:rgba(255,255,255,.7);font-size:.88rem}

/* === 社区模块 === */
.community-section{padding:70px 0;background:#FFF8FA}
.community-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.community-card{border-radius:14px;overflow:hidden;position:relative;height:380px;cursor:pointer}
.community-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.community-card:hover img{transform:scale(1.1)}
.community-card .overlay{position:absolute;bottom:0;left:0;width:100%;padding:25px 20px;background:linear-gradient(to top,rgba(26,26,46,.9),transparent);color:#fff}
.community-card .overlay h3{font-size:1.1rem;margin-bottom:6px}
.community-card .overlay p{font-size:.85rem;opacity:.8}

/* === 专家展示 === */
.experts-section{padding:70px 0;background:#fff}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{text-align:center;padding:30px 20px;border-radius:14px;background:#FFF8FA;border:1px solid rgba(255,107,157,.08);transition:all .3s}
.expert-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(255,107,157,.1)}
.expert-card .avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 15px;overflow:hidden;border:3px solid #FF6B9D}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h3{font-size:1rem;color:#2D2D3A;margin-bottom:4px}
.expert-card .role{color:#FF6B9D;font-size:.85rem;margin-bottom:10px}
.expert-card p{color:#8E8EA0;font-size:.82rem;line-height:1.5;margin-bottom:14px}
.expert-card .expert-btns{display:flex;gap:8px;justify-content:center}
.expert-card .expert-btns a{padding:6px 14px;border-radius:16px;font-size:.8rem;font-weight:600;transition:all .3s}
.expert-card .expert-btns .btn-contact{background:#FF6B9D;color:#fff}
.expert-card .expert-btns .btn-works{background:transparent;border:1px solid #FF6B9D;color:#FF6B9D}
.expert-card .expert-btns a:hover{opacity:.85}

/* === 品牌合作墙 === */
.partners-section{padding:60px 0;background:#FFF8FA}
.partner-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:40px;align-items:center;opacity:.7}
.partner-logos .partner-item{font-size:1.3rem;font-weight:700;color:#8E8EA0;padding:15px 30px;border:1px solid rgba(0,0,0,.06);border-radius:10px;transition:all .3s}
.partner-logos .partner-item:hover{color:#FF6B9D;border-color:#FF6B9D;opacity:1}

/* === 用户评价 === */
.reviews-section{padding:70px 0;background:#fff}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{padding:28px;border-radius:14px;background:#FFF8FA;border:1px solid rgba(255,107,157,.08);position:relative}
.review-card::before{content:'\201C';position:absolute;top:10px;left:20px;font-size:4rem;color:rgba(255,107,157,.15);font-family:Georgia,serif;line-height:1}
.review-card .stars{color:#F8B500;margin-bottom:10px;font-size:1rem}
.review-card p{color:#2D2D3A;font-size:.92rem;line-height:1.7;margin-bottom:14px;padding-top:10px}
.review-card .reviewer{display:flex;align-items:center;gap:10px}
.review-card .reviewer .r-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#F8B500);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.review-card .reviewer .r-info span{display:block}
.review-card .reviewer .r-info .r-name{font-weight:600;font-size:.9rem;color:#2D2D3A}
.review-card .reviewer .r-info .r-date{font-size:.78rem;color:#8E8EA0}

/* === FAQ === */
.faq-section{padding:70px 0;background:#FFF8FA}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{margin-bottom:12px;border-radius:12px;overflow:hidden;background:#fff;border:1px solid rgba(255,107,157,.08)}
.faq-item .faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#2D2D3A;transition:all .3s}
.faq-item .faq-q:hover{color:#FF6B9D}
.faq-item .faq-q .arrow{transition:transform .3s;color:#FF6B9D;font-size:1.2rem}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-item .faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}
.faq-item .faq-a p{color:#8E8EA0;font-size:.9rem;line-height:1.7}

/* === 联系我们 === */
.contact-section{padding:70px 0;background:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;gap:14px;align-items:flex-start}
.contact-item .c-icon{width:44px;height:44px;min-width:44px;background:linear-gradient(135deg,#FF6B9D,#C44569);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem}
.contact-item h4{font-size:.95rem;color:#2D2D3A;margin-bottom:2px}
.contact-item p{font-size:.88rem;color:#8E8EA0}
.contact-qrcodes{display:flex;gap:30px;justify-content:center;align-items:center}
.contact-qrcodes .qr-item{text-align:center}
.contact-qrcodes .qr-item img{width:160px;height:160px;border-radius:10px;border:2px solid rgba(255,107,157,.15)}
.contact-qrcodes .qr-item p{margin-top:8px;font-size:.85rem;color:#8E8EA0}

/* === 社交分享 === */
.share-bar{display:flex;gap:10px;justify-content:center;padding:20px 0}
.share-bar a{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.9rem;font-weight:700;transition:transform .3s}
.share-bar a:hover{transform:scale(1.15)}
.share-wechat{background:#07C160}
.share-weibo{background:#E6162D}
.share-douyin{background:#000}
.share-bilibili{background:#00A1D6}

/* === 页脚 === */
.site-footer{background:linear-gradient(135deg,#1A1A2E,#2D2D3A);color:rgba(255,255,255,.7);padding:50px 0 20px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.footer-col h4{color:#FF6B9D;margin-bottom:16px;font-size:1rem}
.footer-col p{font-size:.88rem;line-height:1.7;margin-bottom:8px}
.footer-col a{display:block;font-size:.88rem;padding:3px 0;transition:color .3s}
.footer-col a:hover{color:#FF6B9D}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;text-align:center;font-size:.82rem}
.footer-bottom a{color:#FF6B9D}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#8E8EA0}
.breadcrumb a{color:#FF6B9D}
.breadcrumb span{margin:0 6px}

/* === 内页通用 === */
.page-hero{height:280px;position:relative;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1A1A2E,#C44569);overflow:hidden}
.page-hero h1{color:#fff;font-size:2.2rem;z-index:2;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.page-content{padding:50px 0}

/* === 视频播放页 === */
.video-player-wrap{max-width:900px;margin:0 auto;background:#000;border-radius:14px;overflow:hidden;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.video-player-wrap video{width:100%;display:block}
.video-detail{max-width:900px;margin:20px auto 0;padding:24px;background:#fff;border-radius:14px}
.video-detail h1{font-size:1.5rem;color:#2D2D3A;margin-bottom:10px}
.video-detail .video-meta{display:flex;gap:20px;color:#8E8EA0;font-size:.88rem;margin-bottom:16px}
.video-detail .video-meta span{display:flex;align-items:center;gap:4px}
.video-detail .video-desc{color:#2D2D3A;line-height:1.8;font-size:.95rem}
.video-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.video-tags span{padding:4px 12px;background:#FFF8FA;border:1px solid rgba(255,107,157,.15);border-radius:14px;font-size:.8rem;color:#FF6B9D}

/* === 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:1fr 1fr}
}
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:70px;left:0;width:100%;background:#1A1A2E;flex-direction:column;padding:20px;gap:4px}
  .nav-menu.show{display:flex}
  .mobile-toggle{display:block}
  .search-box{display:none}
  .hero-section{height:380px}
  .hero-content h1{font-size:1.6rem}
  .video-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .service-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .community-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .partner-logos{gap:20px}
  .contact-qrcodes{flex-direction:column}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .hero-section{height:300px}
  .hero-content h1{font-size:1.3rem}
}

/* === 懒加载 === */
img[loading="lazy"]{opacity:0;transition:opacity .5s}
img[loading="lazy"].loaded,img[loading="lazy"][src]{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}

/* === 视频标签高亮 === */
.video-highlight{color:#FF6B9D;font-weight:600}
.tag-video{display:inline-block;background:linear-gradient(135deg,#FF6B9D,#C44569);color:#fff;padding:2px 10px;border-radius:10px;font-size:.78rem;font-weight:600}