/* 重口社 - 全站样式表 */
/* 品牌：重口社 | 域名：629tp.cn */
*{margin:0;padding:0;box-sizing:border-box}
:root{--brand-primary:#1a237e;--brand-secondary:#0d47a1;--brand-accent:#ff6f00;--brand-dark:#0a1628;--brand-light:#e3f2fd;--brand-gray:#f5f5f5;--text-primary:#212121;--text-secondary:#616161;--text-white:#ffffff;--shadow:0 4px 20px rgba(0,0,0,.12);--radius:12px;--transition:all .3s ease}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;color:var(--text-primary);background:#fff;line-height:1.8;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:var(--transition)}
a:hover{color:var(--brand-accent)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* 头部导航 */
.site-header{background:var(--brand-dark);position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-link img{height:48px;width:auto}
.logo-text{color:var(--text-white);font-size:22px;font-weight:700;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:var(--text-white);padding:12px 16px;font-size:15px;font-weight:500;transition:var(--transition);position:relative}
.main-nav a:hover,.main-nav a.active{color:var(--brand-accent);background:rgba(255,255,255,.08);border-radius:6px}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer}
/* 搜索框 */
.search-bar{background:var(--brand-secondary);padding:12px 0}
.search-bar .container{display:flex;justify-content:center}
.search-form{display:flex;max-width:600px;width:100%;background:#fff;border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}
.search-form input{flex:1;border:none;padding:12px 24px;font-size:15px;outline:none;color:var(--text-primary)}
.search-form button{background:var(--brand-accent);color:#fff;border:none;padding:12px 28px;font-size:15px;cursor:pointer;font-weight:600;transition:var(--transition)}
.search-form button:hover{background:#e65100}
/* Banner */
.lkhf98{position:relative;height:520px;overflow:hidden;background:var(--brand-dark)}
.lkhf98 img{width:100%;height:100%;object-fit:cover;opacity:.7}
.cpski{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(26,35,126,.85),rgba(13,71,161,.6));display:flex;align-items:center;justify-content:center}
.fxey0iu{text-align:center;color:#fff;max-width:800px;padding:0 20px}
.fxey0iu h1{font-size:42px;font-weight:800;margin-bottom:16px;text-shadow:2px 2px 8px rgba(0,0,0,.4);line-height:1.3}
.fxey0iu h2{font-size:22px;font-weight:400;margin-bottom:24px;opacity:.9}
.fxey0iu p{font-size:16px;line-height:1.8;opacity:.85;margin-bottom:30px}
.fl29l{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 36px;border-radius:30px;font-size:16px;font-weight:600;cursor:pointer;transition:var(--transition);border:none}
.btn-primary{background:var(--brand-accent);color:#fff}
.btn-primary:hover{background:#e65100;transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,111,0,.4)}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:var(--brand-primary)}
/* 通用区块 */
.section{padding:60px 0}
.section-alt{background:var(--brand-gray)}
.section-dark{background:var(--brand-dark);color:#fff}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:32px;font-weight:700;color:var(--brand-primary);margin-bottom:10px;position:relative;display:inline-block}
.section-dark .section-title h2{color:#fff}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:var(--brand-accent);margin:12px auto 0;border-radius:2px}
.section-title p{color:var(--text-secondary);font-size:16px;margin-top:8px}
.section-dark .section-title p{color:rgba(255,255,255,.7)}
/* 视频卡片 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.18)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#000}
.video-thumb img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:64px;height:64px;background:rgba(255,111,0,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition);z-index:2}
.video-card:hover .play-btn{opacity:1}
.play-btn::after{content:'';display:block;width:0;height:0;border-style:solid;border-width:12px 0 12px 22px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.8);color:#fff;padding:3px 8px;border-radius:4px;font-size:12px;z-index:2}
.video-stats{position:absolute;bottom:8px;left:8px;display:flex;gap:10px;z-index:2}
.video-stats span{color:#fff;font-size:12px;background:rgba(0,0,0,.6);padding:2px 8px;border-radius:4px}
.video-info{padding:16px}
.video-info h3{font-size:16px;font-weight:600;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-info .meta{display:flex;justify-content:space-between;align-items:center;color:var(--text-secondary);font-size:13px}
.video-info .tag{display:inline-block;background:var(--brand-light);color:var(--brand-secondary);padding:2px 10px;border-radius:20px;font-size:12px;margin-top:6px}
/* 专家卡片 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;padding:30px 20px;transition:var(--transition)}
.expert-card:hover{transform:translateY(-4px)}
.expert-avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;overflow:hidden;border:3px solid var(--brand-accent)}
.expert-avatar img{width:100%;height:100%;object-fit:cover}
.expert-card h4{font-size:18px;font-weight:600;margin-bottom:4px}
.expert-card .role{color:var(--brand-accent);font-size:14px;margin-bottom:10px}
.expert-card p{color:var(--text-secondary);font-size:14px;line-height:1.6;margin-bottom:16px}
.expert-links{display:flex;gap:10px;justify-content:center}
.expert-links a{padding:8px 16px;border-radius:20px;font-size:13px;border:1px solid var(--brand-secondary);color:var(--brand-secondary);transition:var(--transition)}
.expert-links a:hover{background:var(--brand-secondary);color:#fff}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.06);overflow:hidden}
.faq-question{padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-question:hover{background:var(--brand-light)}
.faq-question .icon{font-size:20px;transition:var(--transition);color:var(--brand-accent)}
.faq-question.active .icon{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;color:var(--text-secondary);line-height:1.8;font-size:15px}
.faq-answer.open{max-height:300px;padding:0 24px 20px}
/* 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:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:48px;height:48px;border-radius:50%;background:var(--brand-secondary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}
.review-name{font-weight:600;font-size:15px}
.review-date{color:var(--text-secondary);font-size:13px}
.review-stars{color:#ffc107;font-size:16px;margin-bottom:8px}
.review-text{color:var(--text-secondary);font-size:14px;line-height:1.7}
/* 合作品牌 */
.ie31ykl{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.ie31ykl img{height:50px;opacity:.6;transition:var(--transition);filter:grayscale(100%)}
.ie31ykl img:hover{opacity:1;filter:grayscale(0)}
/* 社交分享 */
.share-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:30px;color:#fff;font-size:14px;font-weight:500;transition:var(--transition)}
.share-btn:hover{transform:translateY(-2px);opacity:.9;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}
/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:18px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:3px;background:var(--brand-accent);border-radius:2px}
.footer-col p,.footer-col a{font-size:14px;line-height:2;color:rgba(255,255,255,.7);display:block}
.footer-col a:hover{color:var(--brand-accent)}
.footer-qr{display:flex;gap:20px;margin-top:12px}
.footer-qr img{width:100px;height:100px;border-radius:8px;border:2px solid rgba(255,255,255,.2)}
.footer-qr-label{text-align:center;font-size:12px;margin-top:4px;color:rgba(255,255,255,.5)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--brand-accent)}
/* 面包屑 */
.breadcrumb{padding:14px 0;font-size:14px;color:var(--text-secondary)}
.breadcrumb a{color:var(--brand-secondary)}
.breadcrumb span{margin:0 6px;color:#ccc}
/* 内页通用 */
.x950d53r{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));padding:60px 0;text-align:center;color:#fff}
.x950d53r h1{font-size:36px;font-weight:700;margin-bottom:10px}
.x950d53r p{font-size:16px;opacity:.85}
.dftc0omx{padding:40px 0}
.dftc0omx h2{font-size:26px;font-weight:700;color:var(--brand-primary);margin-bottom:20px}
.dftc0omx h3{font-size:20px;font-weight:600;color:var(--brand-secondary);margin:24px 0 12px}
.dftc0omx p{margin-bottom:16px;line-height:1.8;color:var(--text-secondary)}
/* AI赋能模块 */
.ai-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:linear-gradient(135deg,#1a237e,#0d47a1);color:#fff;border-radius:var(--radius);padding:30px;text-align:center;transition:var(--transition)}
.ai-card:hover{transform:translateY(-4px)}
.ai-card .ai-icon{font-size:48px;margin-bottom:16px}
.ai-card h4{font-size:18px;margin-bottom:10px}
.ai-card p{font-size:14px;opacity:.85;line-height:1.7}
/* 社区模块 */
.community-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:2px solid transparent}
.cat-card:hover{border-color:var(--brand-accent);transform:translateY(-4px)}
.cat-card .cat-icon{font-size:40px;margin-bottom:12px}
.cat-card h4{font-size:16px;font-weight:600;margin-bottom:6px}
.cat-card p{font-size:13px;color:var(--text-secondary)}
/* How-To指南 */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.step-card{text-align:center;padding:24px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--brand-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin:0 auto 14px}
.step-card h4{font-size:16px;margin-bottom:8px}
.step-card p{font-size:13px;color:var(--text-secondary)}
/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-card{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.contact-card h4{font-size:18px;font-weight:600;margin-bottom:16px;color:var(--brand-primary)}
.contact-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;font-size:14px;color:var(--text-secondary)}
.contact-item strong{color:var(--text-primary);min-width:70px}
/* 数据统计 */
.x9alw2j2{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:40px 0}
.w2pb7q{text-align:center}
.kf3348p{font-size:36px;font-weight:800;color:var(--brand-accent)}
.p55s6{font-size:14px;color:rgba(255,255,255,.7);margin-top:4px}
/* 响应式 */
@media(max-width:992px){
.footer-grid{grid-template-columns:repeat(2,1fr)}
.ai-features,.community-cats{grid-template-columns:repeat(2,1fr)}
.howto-steps{grid-template-columns:repeat(2,1fr)}
.fxey0iu h1{font-size:32px}
.expert-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.show{display:flex}
.mobile-menu-btn{display:block}
.lkhf98{height:400px}
.fxey0iu h1{font-size:26px}
.fxey0iu h2{font-size:18px}
.video-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr}
.ai-features,.community-cats{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.x9alw2j2{grid-template-columns:repeat(2,1fr)}
.expert-grid{grid-template-columns:1fr}
.review-grid{grid-template-columns:1fr}
.section{padding:40px 0}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.lkhf98{height:320px}
.fxey0iu h1{font-size:22px}
.btn{padding:12px 24px;font-size:14px}
}
/* 懒加载 */
img[loading="lazy"]{opacity:0;transition:opacity .5s ease}
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)}}
.p963q8{animation:fadeInUp .6s ease forwards}