/* Cẩm nang (blog) */
#cam-nang{padding:64px 0}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--ink);text-decoration:none;transition:transform .18s,box-shadow .18s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.post-card .pc-cover{aspect-ratio:1200/630;background:var(--cream-2);overflow:hidden}
.post-card .pc-cover img{width:100%;height:100%;object-fit:cover;display:block}
.pc-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px}
.pc-body time{font-size:13px;color:var(--muted)}
.pc-body h3{font-size:18px;line-height:1.35;margin:0}
.pc-body p{font-size:15px;line-height:1.55;color:var(--ink-2);margin:0;max-height:4.65em;overflow:hidden;text-wrap:pretty}
.blog-more{text-align:center;margin:28px 0 0}
.page-main{padding-top:24px}
.blog-hd{padding:36px 0 8px}
.blog-hd h1{font-size:34px;margin:6px 0 8px;line-height:1.2}
.blog-hd p{color:var(--ink-2);max-width:640px;margin:0}
.blog-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 26px}
.blog-tags a{padding:7px 14px;border-radius:99px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14px;text-decoration:none}
.blog-tags a.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.blog-list{padding-bottom:64px}
.post{max-width:800px;margin:0 auto;padding-top:28px;padding-bottom:56px}
.crumb{font-size:14px;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--accent-2);text-decoration:none}
.post h1{font-size:34px;line-height:1.22;margin:0 0 12px}
.post .meta{display:flex;flex-wrap:wrap;gap:8px 14px;color:var(--muted);font-size:14px;margin-bottom:20px}
.post .meta .tag{background:var(--accent-soft);color:var(--accent-2);padding:2px 10px;border-radius:99px}
.post-cover{border-radius:var(--radius);overflow:hidden;margin-bottom:26px;background:var(--cream-2)}
.post-cover img{width:100%;height:auto;display:block}
.prose{font-size:17px;line-height:1.75;color:var(--ink)}
.prose h2{font-size:24px;line-height:1.3;margin:34px 0 10px}
.prose h3{font-size:19px;margin:24px 0 8px}
.prose p{margin:0 0 14px}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px}
.prose li{margin:0 0 6px}
.prose a{color:var(--accent-2)}
.prose img{max-width:100%;height:auto;border-radius:12px;margin:8px 0 16px}
.prose blockquote{margin:18px 0;padding:14px 18px;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 12px 12px 0}
.post-cta{margin:34px 0 0;padding:22px;border-radius:var(--radius);background:var(--navy);color:#fff;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.post-cta img{width:64px;height:64px;flex:none}
.post-cta div{flex:1;min-width:200px}
.post-cta b{display:block;font-size:18px;margin-bottom:4px}
.post-cta span{opacity:.85;font-size:15px}
.post-cta .acts{display:flex;gap:10px;flex-wrap:wrap}
.post-tk{margin:22px 0 0;font-size:15px}
.related{border-top:1px solid var(--line);margin-top:40px;padding-top:28px}
.related h2{font-size:22px;margin:0 0 16px}
.related .blog-grid{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.blog-grid,.related .blog-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){
  #cam-nang{padding:44px 0}
  .blog-grid,.related .blog-grid{grid-template-columns:1fr;gap:16px}
  .blog-hd h1,.post h1{font-size:26px}
  .prose{font-size:16px}
  .prose h2{font-size:21px}
  .post{padding-top:16px;padding-bottom:40px}
  .post-cta{padding:18px}
  .post-cta .acts{width:100%}
  .post-cta .acts .btn{flex:1}
}
.prose figure{margin:22px 0 24px}
.prose figure img{display:block;width:100%;height:auto;border-radius:14px;margin:0;border:1px solid var(--line)}
.prose figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:8px;line-height:1.45}
.vcard{display:flex;gap:18px;align-items:center;margin:20px 0 26px;padding:14px;border:1px solid var(--line);border-radius:16px;background:#fff;text-decoration:none!important;color:var(--ink)!important;transition:box-shadow .18s}
.vcard:hover{box-shadow:var(--shadow)}
.vthumb{position:relative;flex:none;width:120px;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--cream-2)}
.vthumb img{width:100%;height:100%;object-fit:cover;display:block;margin:0;border-radius:0}
.vthumb i{position:absolute;inset:0;margin:auto;width:42px;height:42px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;font-style:normal;display:grid;place-items:center;font-size:16px;padding-left:3px}
.vtxt{display:flex;flex-direction:column;gap:4px;min-width:0}
.vtxt small{font-size:13px;color:var(--muted)}
.vtxt b{font-size:18px;line-height:1.35}
.vtxt em{font-style:normal;font-size:14px;color:var(--muted)}
.vgo{font-weight:600;color:var(--accent-2);font-size:15px;margin-top:4px}
@media (max-width:640px){.vthumb{width:96px}.vtxt b{font-size:16px}}
/* Trang riêng */
.pg-crumb{padding-top:22px;padding-bottom:0}
.page-main > section:first-of-type{padding-top:28px}
.lede{font-size:19px;line-height:1.6;color:var(--ink-2);margin:0 0 22px}
.pg-rel{padding:40px 0 10px}
.pg-rel h2{font-size:24px;margin:0 0 18px}
.page-main > .wrap > .post-cta{margin:36px 0 10px}
.post.wide{max-width:1000px}
.rules-page{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:8px 0 18px}
.rule-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.rule-card h2{font-size:20px;margin:0 0 10px}
.rule-card ul{margin:0;padding-left:20px;line-height:1.65;color:var(--ink-2)}
.rule-card li{margin-bottom:6px}
.post .policy{margin:8px 0 26px}
.price-wrap.embed{margin:12px 0 22px}
.price-wrap.embed .ptable{display:block}
.svc h3 a{color:inherit;text-decoration:none}
.svc h3 a:hover{color:var(--accent)}
.menu a.on{color:var(--accent);font-weight:600}
@media (max-width:760px){.rules-page{grid-template-columns:1fr}.lede{font-size:17px}}
/* Thanh tiêu đề: không xuống dòng */
.logo-txt,.menu a{white-space:nowrap}
@media (width<=1360px){.cbtn .txt{display:none}.cbtn.z,.cbtn.m{padding:0;width:40px;justify-content:center}.nav{gap:18px}.menu{gap:18px}}
@media (980px<width<=1120px){
  .menu{display:none}
  .menu.open{border-bottom:1px solid var(--line);background:#fff;flex-direction:column;gap:0;padding:8px 24px 14px;display:flex;position:absolute;top:68px;left:0;right:0;box-shadow:0 18px 30px -18px #13294b55}
  .menu.open a{padding:12px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--navy)}
  .menu.open a:last-child{border-bottom:0}
  .lang-dd{margin-left:auto}
  .burger{margin-left:0;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid var(--line)}
}
/* Nút Messenger nổi: tròn giống Zalo (tránh trùng kiểu bong bóng chat .msg) */
.fbtn.msg{border-radius:50%;max-width:none;padding:0;width:54px;height:54px;white-space:normal;line-height:1}
@media (width<=600px){.fbtn.msg{width:46px;height:46px}}
.page-main .tools-band{background:none;padding-top:8px}