/* 母狗影视传媒 - 原创样式表 sghmyf.cn */
*{margin:0;padding:0;box-sizing:border-box}
:root{--pk:#d4467a;--pk-light:#f5a0c0;--pk-dark:#a8325e;--gold:#c9a84c;--bg:#fdf6f8;--bg2:#fff0f5;--txt:#2d1b2e;--txt2:#6b4c6e;--white:#fff;--shadow:0 4px 20px rgba(212,70,122,.12);--radius:14px}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--txt);background:var(--bg);line-height:1.7}
a{color:var(--pk);text-decoration:none;transition:color .3s}
a:hover{color:var(--pk-dark)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 头部导航 */
.site-header{background:linear-gradient(135deg,#2d1b2e 0%,#4a2050 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 16px rgba(45,27,46,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-link{display:flex;align-items:center;gap:10px}
.logo-link img{height:42px;width:auto}
.logo-text{color:var(--white);font-size:22px;font-weight:700;letter-spacing:2px}
.nav-menu{display:flex;list-style:none;gap:6px}
.nav-menu a{color:rgba(255,255,255,.85);padding:8px 16px;border-radius:8px;font-size:15px;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{background:var(--pk);color:var(--white)}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:26px;cursor:pointer}

/* 搜索框 */
.search-wrap{background:linear-gradient(90deg,var(--pk),var(--pk-dark));padding:10px 0}
.search-form{display:flex;max-width:600px;margin:0 auto;padding:0 20px}
.search-form input{flex:1;padding:10px 18px;border:none;border-radius:8px 0 0 8px;font-size:15px;outline:none}
.search-form button{background:var(--gold);color:var(--white);border:none;padding:10px 24px;border-radius:0 8px 8px 0;font-size:15px;cursor:pointer;font-weight:600;transition:background .3s}
.search-form button:hover{background:#b8943e}

/* Banner */
.hero{position:relative;overflow:hidden;min-height:480px;display:flex;align-items:center;justify-content:center}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.7)}
.hero-content{position:relative;z-index:2;text-align:center;color:var(--white);padding:60px 20px;max-width:900px}
.hero-content h1{font-size:42px;font-weight:800;margin-bottom:16px;text-shadow:0 3px 16px rgba(0,0,0,.5);line-height:1.3}
.hero-content h1 span{color:var(--pk-light)}
.hero-content h2{font-size:16px;font-weight:400;opacity:.92;line-height:1.8;text-shadow:0 2px 8px rgba(0,0,0,.4)}

/* 通用section */
.section{padding:60px 0}
.section-alt{background:var(--bg2)}
.section-dark{background:linear-gradient(135deg,#2d1b2e,#4a2050);color:var(--white)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:32px;font-weight:700;color:var(--pk-dark);margin-bottom:8px}
.section-dark .section-title h2{color:var(--pk-light)}
.section-title h3{font-size:18px;color:var(--txt2);font-weight:400}
.section-dark .section-title h3{color:rgba(255,255,255,.7)}
.section-sub{text-align:center;color:var(--txt2);margin-bottom:32px;font-size:15px;max-width:800px;margin-left:auto;margin-right:auto}

/* 视频卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(212,70,122,.2)}
.card-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#2d1b2e}
.card-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .card-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(45,27,46,.45);opacity:0;transition:opacity .3s}
.video-card:hover .play-btn{opacity:1}
.play-btn span{width:56px;height:56px;background:var(--pk);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);font-size:24px;box-shadow:0 4px 16px rgba(212,70,122,.4)}
.card-body{padding:16px}
.card-body h4{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}
.card-body p{font-size:13px;color:var(--txt2);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;gap:12px;font-size:12px;color:var(--txt2)}
.card-tag{display:inline-block;background:var(--bg2);color:var(--pk);font-size:12px;padding:2px 10px;border-radius:20px;margin-right:6px;margin-bottom:4px}

/* 横向滚动卡片 */
.scroll-row{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-thumb{background:var(--pk-light);border-radius:3px}
.scroll-row .video-card{min-width:280px;scroll-snap-align:start;flex-shrink:0}

/* AI功能区 */
.ai-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.ai-card{background:linear-gradient(135deg,#2d1b2e,#4a2050);border-radius:var(--radius);padding:28px;color:var(--white);text-align:center;transition:transform .3s}
.ai-card:hover{transform:translateY(-4px)}
.ai-icon{font-size:42px;margin-bottom:14px}
.ai-card h4{font-size:18px;margin-bottom:8px;color:var(--pk-light)}
.ai-card p{font-size:14px;color:rgba(255,255,255,.75);line-height:1.6}

/* 社区模块 */
.community-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.community-item{background:var(--white);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);transition:transform .3s}
.community-item:hover{transform:translateY(-4px)}
.community-item h4{color:var(--pk-dark);font-size:17px;margin-bottom:8px}
.community-item p{font-size:14px;color:var(--txt2)}

/* 专家展示 */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.expert-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;padding:28px 20px;transition:transform .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:110px;height:110px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid var(--pk-light)}
.expert-card h4{font-size:17px;font-weight:600;margin-bottom:4px}
.expert-card .role{color:var(--pk);font-size:14px;margin-bottom:8px}
.expert-card p{font-size:13px;color:var(--txt2);line-height:1.6;margin-bottom:12px}
.expert-card .btn-group{display:flex;gap:8px;justify-content:center}
.btn{display:inline-block;padding:8px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.btn-pk{background:var(--pk);color:var(--white)}
.btn-pk:hover{background:var(--pk-dark);color:var(--white)}
.btn-outline{border:1px solid var(--pk);color:var(--pk);background:transparent}
.btn-outline:hover{background:var(--pk);color:var(--white)}

/* 合作品牌 */
.partner-row{display:flex;flex-wrap:wrap;justify-content:center;gap:28px;align-items:center}
.partner-row span{background:var(--white);padding:14px 28px;border-radius:10px;font-size:15px;font-weight:600;color:var(--txt2);box-shadow:var(--shadow);transition:transform .3s}
.partner-row span:hover{transform:scale(1.06)}

/* How-To */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;counter-reset:step}
.howto-step{background:var(--white);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--shadow);position:relative;counter-increment:step}
.howto-step::before{content:counter(step);position:absolute;top:-14px;left:50%;transform:translateX(-50%);width:32px;height:32px;background:var(--pk);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.howto-step h4{margin-top:8px;font-size:16px;color:var(--pk-dark);margin-bottom:6px}
.howto-step p{font-size:14px;color:var(--txt2)}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--white);border-radius:var(--radius);margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-q{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:15px;transition:background .3s}
.faq-q:hover{background:var(--bg2)}
.faq-q::after{content:"+";font-size:22px;color:var(--pk);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;font-size:14px;color:var(--txt2);line-height:1.7}
.faq-item.open .faq-a{padding:0 24px 18px;max-height:500px}

/* 用户评论 */
.review-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.review-card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.review-card .stars{color:var(--gold);font-size:16px;margin-bottom:8px}
.review-card blockquote{font-size:14px;color:var(--txt2);line-height:1.7;margin-bottom:12px;font-style:italic}
.review-card .reviewer{font-size:13px;font-weight:600;color:var(--pk-dark)}

/* 分享按钮 */
.share-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.share-btn{padding:10px 22px;border-radius:8px;color:var(--white);font-size:14px;font-weight:600;cursor:pointer;transition:opacity .3s;border:none}
.share-btn:hover{opacity:.85;color:var(--white)}
.share-btn[data-platform="wechat"]{background:#07c160}
.share-btn[data-platform="weibo"]{background:#e6162d}
.share-btn[data-platform="douyin"]{background:#161823}
.share-btn[data-platform="bilibili"]{background:#00a1d6}

/* 联系信息 */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.contact-card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);text-align:center}
.contact-card h4{color:var(--pk-dark);font-size:17px;margin-bottom:10px}
.contact-card p{font-size:14px;color:var(--txt2);line-height:1.7}
.contact-card img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* 页脚 */
.site-footer{background:linear-gradient(135deg,#2d1b2e,#1a0e1c);color:rgba(255,255,255,.7);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:30px}
.footer-col h5{color:var(--pk-light);font-size:16px;margin-bottom:12px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:14px;padding:3px 0;transition:color .3s}
.footer-col a:hover{color:var(--pk-light)}
.footer-col p{font-size:13px;line-height:1.7}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.footer-bottom img{height:36px;margin:0 auto 10px}

/* 面包屑 */
.breadcrumb{padding:14px 0;font-size:13px;color:var(--txt2)}
.breadcrumb a{color:var(--pk)}

/* 内页通用 */
.page-hero{background:linear-gradient(135deg,#2d1b2e,#4a2050);padding:50px 0;text-align:center;color:var(--white)}
.page-hero h1{font-size:34px;font-weight:700;margin-bottom:8px}
.page-hero h1 span{color:var(--pk-light)}
.page-hero p{font-size:15px;opacity:.8}
.page-content{padding:40px 0}

/* 响应式 */
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;top:100%;left:0;right:0;background:#2d1b2e;flex-direction:column;padding:16px}
  .nav-menu.show{display:flex}
  .nav-toggle{display:block}
  .hero-content h1{font-size:28px}
  .hero-content h2{font-size:14px}
  .hero{min-height:360px}
  .section{padding:40px 0}
  .section-title h2{font-size:24px}
  .card-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .header-inner{flex-wrap:wrap}
}