/* 母狗官网 - 原创样式表 */
/* 配色：深靛蓝 #1A1A3E | 蜜糖粉 #E8527A | 星辉金 #F0C040 | 幻紫 #8B5CF6 */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-deep:#1A1A3E;--bg-card:#242450;--bg-alt:#1E1E45;
  --pink:#E8527A;--gold:#F0C040;--purple:#8B5CF6;--cyan:#22D3EE;
  --text:#E8E8F0;--text-muted:#9CA3BF;--radius:12px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg-deep);color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:var(--pink);text-decoration:none;transition:color .25s}
a:hover{color:var(--gold)}
img{max-width:100%;height:auto;display:block}
.tx-container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 头部 */
.tx-header{position:sticky;top:0;z-index:100;background:rgba(26,26,62,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,82,122,.15)}
.tx-header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.tx-logo img{height:42px;width:auto}
.tx-nav{display:flex;gap:6px}
.tx-nav-link{padding:8px 16px;border-radius:8px;color:var(--text);font-size:.95rem;transition:all .25s}
.tx-nav-link:hover,.tx-nav-link.active{background:var(--pink);color:#fff}
.tx-hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.tx-hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.tx-search-bar{background:var(--bg-alt);padding:10px 0;border-bottom:1px solid rgba(139,92,246,.1)}
.tx-search-bar .tx-container{display:flex;gap:8px}
.tx-search-input{flex:1;padding:10px 18px;border-radius:24px;border:1px solid rgba(139,92,246,.3);background:var(--bg-card);color:var(--text);font-size:.9rem;outline:none;transition:border-color .3s}
.tx-search-input:focus{border-color:var(--pink)}
.tx-search-btn{padding:10px 28px;border-radius:24px;border:none;background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;font-size:.9rem;cursor:pointer;transition:opacity .3s}
.tx-search-btn:hover{opacity:.85}

/* Banner */
.tx-banner{position:relative;height:420px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.tx-banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.45)}
.tx-banner-content{position:relative;z-index:2;text-align:center;padding:0 20px}
.tx-banner h1{font-size:2.6rem;font-weight:800;margin-bottom:12px;background:linear-gradient(135deg,var(--gold),var(--pink));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tx-banner h1 em{font-style:normal}
.tx-banner p{font-size:1.1rem;color:var(--text-muted);max-width:640px;margin:0 auto}

/* 通用区块 */
.tx-section{padding:56px 0}
.tx-section-alt{background:var(--bg-alt)}
.tx-section-head{text-align:center;margin-bottom:40px}
.tx-section-head h2{font-size:1.8rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.tx-section-head h2 em{font-style:normal;color:var(--pink)}
.tx-section-head p{color:var(--text-muted);font-size:1rem}

/* 视频卡片网格 */
.tx-grid{display:grid;gap:24px}
.tx-grid-3{grid-template-columns:repeat(3,1fr)}
.tx-grid-4{grid-template-columns:repeat(4,1fr)}
.tx-grid-2{grid-template-columns:repeat(2,1fr)}
.tx-video-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer;border:1px solid rgba(139,92,246,.1)}
.tx-video-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(232,82,122,.15)}
.tx-video-thumb{position:relative;overflow:hidden;aspect-ratio:3/4}
.tx-video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.tx-video-card:hover .tx-video-thumb img{transform:scale(1.06)}
.tx-play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(26,26,62,.5);opacity:0;transition:opacity .3s}
.tx-video-card:hover .tx-play-btn{opacity:1}
.tx-play-btn::after{content:"";width:56px;height:56px;border-radius:50%;background:rgba(232,82,122,.9);display:flex;align-items:center;justify-content:center;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:28px}
.tx-video-info{padding:14px 16px}
.tx-video-info h3{font-size:.95rem;font-weight:600;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tx-video-meta{display:flex;gap:12px;font-size:.8rem;color:var(--text-muted)}
.tx-video-meta span::before{margin-right:3px}
.tx-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.7rem;background:var(--pink);color:#fff;margin-bottom:6px}

/* 服务卡片 */
.tx-service-card{background:var(--bg-card);border-radius:var(--radius);padding:28px 24px;text-align:center;border:1px solid rgba(139,92,246,.1);transition:all .3s}
.tx-service-card:hover{border-color:var(--pink);box-shadow:0 8px 24px rgba(232,82,122,.12)}
.tx-service-icon{font-size:2.4rem;margin-bottom:14px}
.tx-service-card h3{font-size:1.1rem;margin-bottom:8px;color:var(--gold)}
.tx-service-card p{font-size:.88rem;color:var(--text-muted)}

/* 专家卡片 */
.tx-expert-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid rgba(139,92,246,.1)}
.tx-expert-card img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid var(--pink)}
.tx-expert-card h3{font-size:1rem;margin-bottom:4px}
.tx-expert-card .tx-role{color:var(--gold);font-size:.85rem;margin-bottom:8px}
.tx-expert-card p{font-size:.85rem;color:var(--text-muted);margin-bottom:12px}
.tx-expert-card .tx-btn{display:inline-block;padding:6px 18px;border-radius:20px;font-size:.82rem;background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;margin:0 4px}

/* 品牌墙 */
.tx-brand-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:20px;padding:20px 0}
.tx-brand-item{background:var(--bg-card);border-radius:8px;padding:16px 28px;font-size:1rem;font-weight:600;color:var(--text-muted);border:1px solid rgba(139,92,246,.1);transition:all .3s}
.tx-brand-item:hover{border-color:var(--gold);color:var(--gold)}

/* How-To步骤 */
.tx-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.tx-step{background:var(--bg-card);border-radius:var(--radius);padding:24px 20px;text-align:center;position:relative;border:1px solid rgba(139,92,246,.1);counter-increment:step}
.tx-step::before{content:counter(step);display:block;width:40px;height:40px;line-height:40px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;font-weight:700;font-size:1.1rem;margin:0 auto 12px}
.tx-step h3{font-size:.95rem;margin-bottom:6px;color:var(--gold)}
.tx-step p{font-size:.85rem;color:var(--text-muted)}

/* FAQ */
.tx-faq-item{background:var(--bg-card);border-radius:var(--radius);margin-bottom:10px;border:1px solid rgba(139,92,246,.1);overflow:hidden}
.tx-faq-q{padding:16px 20px;cursor:pointer;font-weight:600;font-size:.95rem;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.tx-faq-q:hover{background:rgba(232,82,122,.08)}
.tx-faq-q::after{content:"+";font-size:1.3rem;color:var(--pink);transition:transform .3s}
.tx-faq-item.active .tx-faq-q::after{transform:rotate(45deg)}
.tx-faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 20px;font-size:.9rem;color:var(--text-muted)}
.tx-faq-item.active .tx-faq-a{max-height:300px;padding:0 20px 16px}

/* 评论 */
.tx-review-card{background:var(--bg-card);border-radius:var(--radius);padding:20px;border:1px solid rgba(139,92,246,.1)}
.tx-review-card .tx-stars{color:var(--gold);font-size:.9rem;margin-bottom:8px}
.tx-review-card blockquote{font-size:.9rem;color:var(--text-muted);margin-bottom:10px;font-style:italic;line-height:1.6}
.tx-review-card .tx-reviewer{font-size:.82rem;color:var(--pink);font-weight:600}

/* 标签云 */
.tx-tag-cloud{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.tx-tag{padding:6px 16px;border-radius:20px;font-size:.85rem;background:var(--bg-card);color:var(--text-muted);border:1px solid rgba(139,92,246,.15);transition:all .3s}
.tx-tag:hover{border-color:var(--pink);color:var(--pink);background:rgba(232,82,122,.08)}

/* 联系区块 */
.tx-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.tx-contact-info h3{font-size:1.1rem;margin-bottom:12px;color:var(--gold)}
.tx-contact-info p{font-size:.9rem;color:var(--text-muted);margin-bottom:6px}

/* 底部 */
.tx-footer{background:#12122E;padding:48px 0 24px;border-top:1px solid rgba(232,82,122,.1)}
.tx-footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-bottom:30px}
.tx-footer-col h4{font-size:1rem;margin-bottom:14px;color:var(--gold)}
.tx-footer-col a,.tx-footer-col p{font-size:.88rem;color:var(--text-muted);line-height:2}
.tx-footer-col a:hover{color:var(--pink)}
.tx-qr-group{display:flex;gap:16px}
.tx-qr-group div{text-align:center}
.tx-qr-group img{border-radius:8px;margin-bottom:4px}
.tx-qr-group p{font-size:.75rem;color:var(--text-muted)}
.tx-footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(139,92,246,.1)}
.tx-footer-bottom p{font-size:.82rem;color:var(--text-muted);margin-bottom:4px}
.tx-share{margin-top:10px}
.tx-share span{font-size:.82rem;color:var(--text-muted)}
.tx-share a{margin:0 6px;font-size:.82rem;color:var(--pink)}

/* 面包屑 */
.tx-breadcrumb{padding:14px 0;font-size:.85rem;color:var(--text-muted)}
.tx-breadcrumb a{color:var(--pink)}
.tx-breadcrumb span{margin:0 6px}

/* 内页通用 */
.tx-page-hero{padding:48px 0;text-align:center;background:var(--bg-alt)}
.tx-page-hero h1{font-size:2rem;font-weight:700;margin-bottom:8px}
.tx-page-hero h1 em{font-style:normal;color:var(--pink)}
.tx-page-hero p{color:var(--text-muted);font-size:1rem}
.tx-content-block{padding:40px 0}
.tx-content-block h2{font-size:1.4rem;margin-bottom:16px;color:var(--text)}
.tx-content-block h2 em{font-style:normal;color:var(--pink)}
.tx-content-block p{font-size:.95rem;color:var(--text-muted);margin-bottom:14px;line-height:1.8}

/* 响应式 */
@media(max-width:992px){
  .tx-grid-4{grid-template-columns:repeat(2,1fr)}
  .tx-grid-3{grid-template-columns:repeat(2,1fr)}
  .tx-steps{grid-template-columns:repeat(2,1fr)}
  .tx-footer-grid{grid-template-columns:1fr}
  .tx-contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .tx-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-deep);flex-direction:column;padding:16px;border-bottom:1px solid rgba(232,82,122,.15)}
  .tx-nav.active{display:flex}
  .tx-hamburger{display:flex}
  .tx-banner{height:320px}
  .tx-banner h1{font-size:1.8rem}
  .tx-grid-4,.tx-grid-3,.tx-grid-2{grid-template-columns:1fr}
  .tx-steps{grid-template-columns:1fr}
  .tx-section{padding:36px 0}
  .tx-section-head h2{font-size:1.4rem}
}