/*
Theme Name: AI博客引流
Theme URI: https://loverphub.top
Description: 专注AI博文引流的轻量主题
Version: 3.1
Author: loverphub
*/

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#1e293b;background:#f8fafc;line-height:1.7}
a{color:#2563eb;text-decoration:none;transition:color .2s}
a:hover{color:#1d4ed8}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid #e2e8f0;position:sticky;top:0;z-index:100}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:60px}
.logo{font-size:20px;font-weight:800;background:linear-gradient(135deg,#2563eb,#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav .nav-menu{display:flex;list-style:none;gap:24px;padding:0;margin:0}
.main-nav .nav-menu li{display:flex}
.main-nav .nav-menu a{font-size:14px;font-weight:500;color:#475569;padding:6px 0;white-space:nowrap}
.main-nav .nav-menu a:hover{color:#2563eb}

/* Hero */
.hero{background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;padding:64px 0 52px;text-align:center}
.hero h1{font-size:32px;font-weight:800;margin-bottom:8px;line-height:1.2}
.hero p{font-size:15px;color:#94a3b8;margin-bottom:24px}
.hero-search{max-width:460px;margin:0 auto}
.hero-search input{width:100%;padding:12px 18px;border:none;border-radius:10px;font-size:14px;outline:none;background:#fff;color:#1e293b;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.hero-search input::placeholder{color:#94a3b8}

/* Browse Section */
.browse-section{padding:40px 0 0}
.browse-header{display:flex;align-items:center;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.section-title{font-size:20px;font-weight:700;color:#1e293b;white-space:nowrap}
.breadcrumb{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.breadcrumb-item{font-size:13px;color:#64748b;cursor:pointer;padding:4px 10px;border-radius:6px;transition:all .2s}
.breadcrumb-item:hover{background:#e2e8f0;color:#1e293b}
.breadcrumb-item.active{color:#2563eb;font-weight:600;background:#eff6ff;cursor:default}
.breadcrumb-sep{color:#94a3b8;font-size:14px}

/* Sub Categories */
.sub-cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;padding:12px 0;border-bottom:1px solid #e2e8f0}
.cat-btn{padding:6px 16px;border:1px solid #e2e8f0;border-radius:8px;font-size:13px;font-weight:500;color:#475569;background:#fff;cursor:pointer;transition:all .2s}
.cat-btn:hover{border-color:#2563eb;color:#2563eb;background:#f8faff}
.cat-btn.active{border-color:#2563eb;background:#2563eb;color:#fff}

/* Posts Grid */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;margin-bottom:40px}
.post-card{background:#fff;border-radius:12px;overflow:hidden;border:1px solid #e2e8f0;transition:all .25s}
.post-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.1)}
.card-image{height:180px;overflow:hidden;background:#e2e8f0}
.card-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.post-card:hover .card-image img{transform:scale(1.05)}
.card-image.no-image{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:36px;font-weight:700}
.card-body{padding:18px}
.card-meta{display:flex;gap:8px;font-size:12px;color:#64748b;margin-bottom:6px;flex-wrap:wrap;align-items:center}
.card-cat{display:inline-block;padding:2px 10px;background:#eff6ff;color:#2563eb;border-radius:20px;font-size:12px;font-weight:600}
.card-title{font-size:16px;font-weight:700;margin-bottom:8px;line-height:1.4}
.card-title a{color:#1e293b;transition:color .2s}
.card-title a:hover{color:#2563eb}
.card-excerpt{color:#64748b;font-size:13px;line-height:1.6}
.empty-state{text-align:center;padding:60px 0;color:#94a3b8;font-size:14px}

/* Single Post */
.post-full{max-width:760px;margin:0 auto;padding-bottom:40px}
.post-full h1{font-size:28px;font-weight:800;margin-bottom:12px;line-height:1.3}
.post-meta{display:flex;gap:12px;font-size:13px;color:#64748b;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid #e2e8f0;flex-wrap:wrap}
.post-content{font-size:16px;line-height:1.9;color:#1e293b}
.post-content h2{font-size:22px;font-weight:700;margin:32px 0 14px}
.post-content h3{font-size:18px;font-weight:600;margin:24px 0 10px}
.post-content p{margin-bottom:16px}
.post-content img{border-radius:10px;margin:16px 0;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.post-content blockquote{border-left:4px solid #2563eb;padding:14px 20px;margin:20px 0;background:#f8fafc;border-radius:0 10px 10px 0;font-style:italic;color:#475569}
.post-content pre{background:#0f172a;color:#e2e8f0;padding:18px;border-radius:10px;overflow-x:auto;font-size:14px;line-height:1.6;margin:20px 0}
.post-content ul,.post-content ol{padding-left:22px;margin-bottom:16px}
.post-content li{margin-bottom:6px}
.post-content h1{display:none}

/* AI Apps Section */
.ai-apps-section{padding:40px 0}
.section-subtitle{font-size:14px;color:#64748b;margin-bottom:20px}
.ai-apps-scroll{display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.ai-apps-scroll::-webkit-scrollbar{height:6px}
.ai-apps-scroll::-webkit-scrollbar-track{background:#e2e8f0;border-radius:3px}
.ai-apps-scroll::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:3px}
.ai-app-card{flex:0 0 260px;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:20px 16px;display:flex;flex-direction:column;align-items:center;text-align:center;scroll-snap-align:start;transition:all .2s}
.ai-app-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px)}
.ai-app-info h3{font-size:16px;font-weight:700;margin-bottom:6px;color:#1e293b}
.ai-app-info p{font-size:13px;color:#64748b;line-height:1.5;margin-bottom:12px}
.ai-app-qr{margin-bottom:12px}
.ai-app-qr img{width:160px;height:160px;object-fit:contain;border-radius:8px;display:block;background:#f8fafc;padding:8px}
.ai-app-btn{display:inline-block;padding:8px 24px;background:var(--primary,#2563eb);color:#fff;border-radius:6px;font-size:13px;font-weight:600;transition:background .2s}
.ai-app-btn:hover{background:var(--primary-dark,#1d4ed8);color:#fff}

/* WeChat Lead */
.wechat-lead{background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;padding:56px 0;text-align:center}
.wechat-lead h2{font-size:22px;font-weight:700;margin-bottom:8px}
.wechat-lead p{font-size:14px;color:#94a3b8;margin-bottom:20px;max-width:400px;margin-left:auto;margin-right:auto}
.wechat-btn{display:inline-block;padding:12px 32px;background:#07c160;color:#fff;border-radius:10px;font-weight:600;font-size:14px;transition:all .2s}
.wechat-btn:hover{background:#06ad56;color:#fff;transform:translateY(-1px)}

/* Footer */
.site-footer{background:#0f172a;color:#94a3b8;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:12px}
.footer-col p{font-size:13px;line-height:1.7}
.footer-col ul{list-style:none;padding:0}
.footer-col ul li{margin-bottom:6px}
.footer-col ul a{color:#94a3b8;font-size:13px;transition:color .2s}
.footer-col ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;padding:20px 0;display:flex;justify-content:space-between;align-items:center;font-size:13px;flex-wrap:wrap;gap:12px}
.footer-social a{color:#94a3b8;padding:6px 12px;border:1px solid #1e293b;border-radius:8px;font-size:13px;transition:all .2s}
.footer-social a:hover{color:#fff;border-color:#2563eb}

.pagination{display:flex;justify-content:center;gap:8px;margin:40px 0}
.pagination a,.pagination span{padding:10px 16px;border:1px solid #e2e8f0;border-radius:8px;font-size:14px;color:#1e293b;transition:all .2s}
.pagination a:hover{background:#2563eb;color:#fff;border-color:#2563eb}
.pagination .current{background:#2563eb;color:#fff;border-color:#2563eb}

@media(max-width:768px){
  .header-inner{flex-direction:column;height:auto;padding:12px 0;gap:8px}
  .main-nav .nav-menu{flex-wrap:wrap;justify-content:center;gap:16px}
  .hero h1{font-size:24px}
  .hero{padding:48px 0 36px}
  .posts-grid{grid-template-columns:1fr}
  .post-full h1{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .browse-header{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
}