/* ===== 黑料 - 视频社区 全站样式表 ===== */
/* 网站: lnvv.cn */
/* 配色: 深碳灰#1a1a2e + 热门红#e63946 + 钛金银#c0c0c0 + 深蓝钢#16213e */

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;background:#0d0d1a;color:#e0e0e0;line-height:1.75}
a{color:#e63946;text-decoration:none;transition:color .3s}
a:hover{color:#ff6b6b}
img{max-width:100%;height:auto}
.container{max-width:1280px;margin:0 auto;padding:0 20px}

/* === 隐藏干扰标签 === */
.itf-wrap{position:absolute;width:0;height:0;overflow:hidden;opacity:0;pointer-events:none;z-index:-9999}

/* === 顶部导航 === */
.top-header{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);border-bottom:2px solid #e63946;position:sticky;top:0;z-index:1000;backdrop-filter:blur(10px)}
.top-header .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo-area{display:flex;align-items:center;gap:12px}
.logo-area img{height:48px;width:auto}
.logo-area .brand-name{font-size:1.6rem;font-weight:800;color:#fff;letter-spacing:2px}
.logo-area .brand-name span{color:#e63946}
.main-nav{display:flex;gap:6px}
.main-nav a{color:#c0c0c0;padding:8px 16px;border-radius:6px;font-size:.95rem;font-weight:500;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#e63946;color:#fff}

/* === 搜索框 === */
.search-bar{background:#16213e;padding:14px 0;border-bottom:1px solid #2a2a4a}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;width:600px;max-width:100%}
.search-box input{flex:1;padding:12px 20px;border:2px solid #3a3a5a;border-right:none;border-radius:8px 0 0 8px;background:#1a1a2e;color:#fff;font-size:1rem;outline:none;transition:border-color .3s}
.search-box input:focus{border-color:#e63946}
.search-box button{padding:12px 28px;background:#e63946;color:#fff;border:none;border-radius:0 8px 8px 0;font-size:1rem;cursor:pointer;transition:background .3s;font-weight:600}
.search-box button:hover{background:#ff4757}

/* === Banner区域 === */
.hero-banner{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-banner .bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.45)}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px;padding:0 20px}
.hero-content h1{font-size:2.8rem;font-weight:900;color:#fff;margin-bottom:16px;text-shadow:0 4px 20px rgba(0,0,0,.6)}
.hero-content h1 span{color:#e63946}
.hero-content p{font-size:1.15rem;color:#d0d0d0;margin-bottom:28px;line-height:1.8}
.hero-content .cta-btn{display:inline-block;padding:14px 40px;background:linear-gradient(135deg,#e63946,#ff6b6b);color:#fff;border-radius:50px;font-size:1.1rem;font-weight:700;transition:transform .3s,box-shadow .3s}
.hero-content .cta-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(230,57,70,.4)}

/* === 通用区块标题 === */
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:2rem;font-weight:800;color:#fff;margin-bottom:10px}
.section-title h2 span{color:#e63946}
.section-title p{color:#999;font-size:1rem}
.section-title .update-time{font-size:.8rem;color:#666;margin-top:6px}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-bottom:40px}
.video-card{background:#16213e;border-radius:12px;overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer;border:1px solid #2a2a4a}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(230,57,70,.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 .4s}
.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:64px;height:64px;background:rgba(230,57,70,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s;z-index:3}
.play-btn::after{content:'';width:0;height:0;border-left:22px solid #fff;border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:4px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:2px 8px;border-radius:4px;font-size:.8rem;z-index:3}
.video-info{padding:16px}
.video-info h3{font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:16px;color:#888;font-size:.85rem}
.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:#1a1a2e;color:#e63946;padding:3px 10px;border-radius:20px;font-size:.75rem;border:1px solid #3a3a5a}

/* === 各内容区块 === */
section{padding:60px 0}
section:nth-child(even){background:#12122a}
section:nth-child(odd){background:#0d0d1a}

/* === 视频传媒模块 === */
.media-modules{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.media-card{background:linear-gradient(145deg,#1a1a2e,#16213e);padding:28px;border-radius:12px;text-align:center;border:1px solid #2a2a4a;transition:all .3s}
.media-card:hover{border-color:#e63946;transform:translateY(-4px)}
.media-card .icon{font-size:2.5rem;margin-bottom:14px}
.media-card h4{color:#fff;font-size:1.1rem;margin-bottom:8px}
.media-card p{color:#999;font-size:.9rem;line-height:1.6}

/* === AI赋能模块 === */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(145deg,#16213e,#1a1a2e);padding:32px;border-radius:16px;text-align:center;border:1px solid #2a2a4a;position:relative;overflow:hidden}
.ai-card::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent,#e63946,transparent);animation:aiGlow 4s linear infinite;opacity:.1}
@keyframes aiGlow{to{transform:rotate(360deg)}}
.ai-card h4{color:#e63946;font-size:1.15rem;margin-bottom:10px;position:relative}
.ai-card p{color:#bbb;font-size:.9rem;line-height:1.7;position:relative}

/* === 专家展示 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#16213e;border-radius:12px;padding:24px;text-align:center;border:1px solid #2a2a4a;transition:all .3s}
.expert-card:hover{border-color:#e63946}
.expert-card .avatar{width:80px;height:80px;border-radius:50%;background:#e63946;margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff;font-weight:800}
.expert-card h4{color:#fff;font-size:1rem;margin-bottom:4px}
.expert-card .role{color:#e63946;font-size:.85rem;margin-bottom:8px}
.expert-card p{color:#999;font-size:.85rem;line-height:1.5;margin-bottom:12px}
.expert-card .btn-sm{display:inline-block;padding:6px 18px;background:transparent;border:1px solid #e63946;color:#e63946;border-radius:20px;font-size:.8rem;transition:all .3s}
.expert-card .btn-sm:hover{background:#e63946;color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#16213e;border-radius:10px;margin-bottom:12px;border:1px solid #2a2a4a;overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#fff;font-weight:600;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#1e1e3a}
.faq-question::after{content:'+';font-size:1.4rem;color:#e63946;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.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:#bbb;font-size:.95rem;line-height:1.7}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#16213e;border-radius:12px;padding:24px;border:1px solid #2a2a4a}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:#e63946;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.review-name{color:#fff;font-weight:600;font-size:.95rem}
.review-date{color:#666;font-size:.8rem}
.review-stars{color:#ffd700;margin-bottom:8px;font-size:1rem}
.review-text{color:#bbb;font-size:.9rem;line-height:1.7}

/* === 合作品牌 === */
.brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.brand-wall .brand-item{background:#16213e;padding:16px 32px;border-radius:10px;border:1px solid #2a2a4a;color:#c0c0c0;font-size:1.1rem;font-weight:700;transition:all .3s}
.brand-wall .brand-item:hover{border-color:#e63946;color:#e63946}

/* === 联系我们 === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info{display:flex;flex-direction:column;gap:16px}
.contact-item{background:#16213e;padding:18px 24px;border-radius:10px;border:1px solid #2a2a4a;color:#ccc;font-size:.95rem}
.contact-item strong{color:#e63946}
.qr-codes{display:flex;gap:24px;justify-content:center}
.qr-item{text-align:center}
.qr-item img{width:160px;height:160px;border-radius:10px;border:2px solid #2a2a4a}
.qr-item p{color:#999;font-size:.85rem;margin-top:8px}

/* === 社交分享 === */
.share-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{padding:10px 24px;border-radius:8px;color:#fff;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.share-btn.wechat{background:#07c160}.share-btn.weibo{background:#e6162d}
.share-btn.douyin{background:#161823}.share-btn.bilibili{background:#00a1d6}
.share-btn:hover{transform:translateY(-2px);opacity:.9}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.howto-step{text-align:center;padding:24px;background:#16213e;border-radius:12px;border:1px solid #2a2a4a}
.howto-step .step-num{width:48px;height:48px;background:#e63946;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.2rem;margin:0 auto 14px}
.howto-step h4{color:#fff;font-size:1rem;margin-bottom:8px}
.howto-step p{color:#999;font-size:.85rem;line-height:1.5}

/* === 页脚 === */
.site-footer{background:#0a0a18;padding:48px 0 20px;border-top:2px solid #e63946}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid #e63946;display:inline-block}
.footer-col a,.footer-col p{color:#888;font-size:.9rem;line-height:2;display:block}
.footer-col a:hover{color:#e63946}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #1a1a2e;color:#666;font-size:.85rem}
.footer-bottom a{color:#e63946}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;color:#888;font-size:.9rem}
.breadcrumb a{color:#e63946}
.breadcrumb span{margin:0 8px;color:#555}

/* === 内页通用 === */
.page-hero{padding:60px 0;text-align:center;background:linear-gradient(135deg,#1a1a2e,#16213e)}
.page-hero h1{font-size:2.2rem;color:#fff;font-weight:800;margin-bottom:10px}
.page-hero h1 span{color:#e63946}
.page-hero p{color:#999;font-size:1rem}

/* === 时间线 === */
.timeline{position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:16px;top:0;bottom:0;width:2px;background:#e63946}
.timeline-item{position:relative;margin-bottom:30px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-28px;top:6px;width:14px;height:14px;background:#e63946;border-radius:50%;border:3px solid #1a1a2e}
.timeline-item h4{color:#fff;font-size:1rem;margin-bottom:4px}
.timeline-item p{color:#999;font-size:.9rem}

/* === 响应式 === */
@media(max-width:1024px){
.expert-grid{grid-template-columns:repeat(2,1fr)}
.media-modules{grid-template-columns:repeat(2,1fr)}
.ai-features{grid-template-columns:repeat(2,1fr)}
.howto-steps{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.top-header .container{flex-direction:column;height:auto;padding:12px 20px;gap:10px}
.main-nav{flex-wrap:wrap;justify-content:center}
.hero-banner{height:380px}
.hero-content h1{font-size:1.8rem}
.video-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.media-modules{grid-template-columns:1fr}
.ai-features{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.search-box{width:100%}
section{padding:40px 0}
}
@media(max-width:480px){
.hero-content h1{font-size:1.4rem}
.section-title h2{font-size:1.5rem}
.main-nav a{padding:6px 10px;font-size:.85rem}
}