/* trang chu - hien thi */
.home-title {text-align: center;padding-top: 10px;}
@media (min-width: 901px) {
.post_chung-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-template-rows:auto auto auto auto;gap:15px;padding:0 20px 20px}
.post_chung-grid > main{grid-column:1 / 13;display:grid;grid-template-columns:repeat(12,1fr);gap:15px}
.post_chung-grid > div.page-header:first-child{text-align:center;grid-column:1 / 13;grid-row:1;display:flex!important;flex-direction:column!important;align-items:center!important;border:0!important}
.post_chung-grid > div.page-header:first-child h1{text-align:center!important;display:block!important;width:100%!important;clear:both!important;float:none!important}
.post_chung-grid > div.page-header:first-child h2{text-align:center!important;margin:0!important;padding-bottom:10px!important;display:block!important;width:100%!important;clear:both!important;float:none!important;border-bottom:.5px solid rgba(0,0,0,0.1)!important}
.post_chung-grid > article:nth-child(2){grid-column:1 / 8;grid-row:2 / 4}
.post_chung-grid > article:nth-child(3){grid-column:8 / 13;grid-row:2 / 3}
.post_chung-grid > article:nth-child(4){grid-column:8 / 13;grid-row:3 / 4}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11){grid-column:1 / 13}
.post_chung-grid > article:nth-child(2),.post_chung-grid > article:nth-child(3),.post_chung-grid > article:nth-child(4){position:relative;color:#fff;height:100%;border-radius:10px;overflow:hidden;box-shadow:0 6px 20px rgba(0,0,0,0.15);transition:all .3s ease}
.post_chung-grid > article:nth-child(2):hover,.post_chung-grid > article:nth-child(3):hover,.post_chung-grid > article:nth-child(4):hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(0,0,0,0.25)}
.post_chung-grid > article:nth-child(2) .post_box,.post_chung-grid > article:nth-child(3) .post_box,.post_chung-grid > article:nth-child(4) .post_box{height:100%}
.post_chung-grid > article:nth-child(2) .post_box-left,.post_chung-grid > article:nth-child(3) .post_box-left,.post_chung-grid > article:nth-child(4) .post_box-left{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}
.post_chung-grid > article:nth-child(2) .post_box-left.img-small img,.post_chung-grid > article:nth-child(3) .post_box-left.img-small img,.post_chung-grid > article:nth-child(4) .post_box-left.img-small img{width:100%;height:100%;object-fit:fill;border-radius:10px}
.post_chung-grid > article:nth-child(2) .post_box-right,.post_chung-grid > article:nth-child(3) .post_box-right,.post_chung-grid > article:nth-child(4) .post_box-right{position:absolute;bottom:0;left:0;right:0;padding:15px;background:linear-gradient(to top,rgba(0,0,0,0.9) 0%,rgba(0,0,0,0.7) 50%,rgba(0,0,0,0.3) 80%,rgba(0,0,0,0) 100%);z-index:2;color:#fff}
.post_chung-grid > article:nth-child(2) .small_content h3,.post_chung-grid > article:nth-child(3) .small_content h3,.post_chung-grid > article:nth-child(4) .small_content h3{color:#fff;margin:0 0 10px;line-height:1.3;text-shadow:2px 2px 4px rgba(0,0,0,0.7);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post_chung-grid > article:nth-child(2) .small_content .summary{color:rgba(255,255,255,0.9);font-size:15px;line-height:1.4;margin:8px 0 12px;text-shadow:1px 1px 2px rgba(0,0,0,0.7);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post_chung-grid > article:nth-child(3) .small_content .summary,.post_chung-grid > article:nth-child(4) .small_content .summary{display:none}
.post_chung-grid > article:nth-child(2) .reading-info,.post_chung-grid > article:nth-child(3) .reading-info,.post_chung-grid > article:nth-child(4) .reading-info{font-size:.8em;text-shadow:1px 1px 2px rgba(0,0,0,0.7);border-top:1px solid rgba(255,255,255,0.2);padding-top:8px;margin-top:8px}
.post_chung-grid > article:nth-child(2) .post_box{min-height:250px}
.post_chung-grid > article:nth-child(2) .post_box-right{padding:20px}
.post_chung-grid > article:nth-child(2) .small_content h3{-webkit-line-clamp:4;margin-bottom:10px;text-align:center}
.post_chung-grid > article:nth-child(2) .small_content .summary{font-size:1em;-webkit-line-clamp:3;margin:12px 0 15px}
.post_chung-grid > article:nth-child(2) .reading-info{font-size:.9em;margin-top:10px;padding-top:10px}
.post_chung-grid > article:nth-child(n+3):nth-child(-n+4) .post_box{height:180px}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .post_box{background:#F5F5F5;border:.5px solid rgba(0,0,0,0.1);display:flex;flex-direction:row;align-items:center;border-radius:12px;margin:0!important;transition:all .3s ease;box-shadow:0 2px 8px rgba(0,0,0,0.05)}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .post_box:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,0.12)}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .post_box-left{flex-shrink:0}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .img-small img{border:.5px solid rgba(0,0,0,0.1);min-width:259px;max-width:259px;min-height:179px;max-height:179px;border-radius:10px;object-fit:fill;display:block;padding:1px}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .post_box-right{flex-shrink:1}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .small_content h3{color:#333;margin-top:0;margin-bottom:10px;text-align:left;width:100%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.3}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .small_content .summary{color:#666;font-size:.95em;line-height:1.4;margin:8px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post_chung-grid > article:nth-child(n+5):nth-child(-n+11) .reading-info{font-size:.85em;border-top:1px solid #eee;padding-top:8px;margin-top:8px}
}
@media (max-width: 900px) {
.post_chung-grid > article:nth-child(n+2):nth-child(-n+11) .img-small img{border:.5px solid rgba(0,0,0,0.1);min-width:160px;max-width:160px;min-height:130px;max-height:130px;border-radius:10px;object-fit:cover;display:block;padding:1px}
.page-header{text-align:center}
}
/* danh muc cha, con & bai viet trong danh muc */
.category-title{text-align:center;padding-top:15px}
.category-box{border:1px solid #e0e0e0;border-radius:10px;background:#fff;padding:20px;margin:20px}
.category-box h2::before{content:'\1F4C2';margin-right:10px}
.category-recent-posts-list,.category-recent-posts-empty{margin-top:10px;padding-top:8px;border-top:1px solid #e0e0e0}
.category-recent-posts-list ol{padding-left:15px}
.category-recent-posts-list li{padding-left:0;list-style-type:decimal}
.category-recent-posts-list li h3{font-size:1.09em;display:inline;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}
.category-empty{border:.5px solid #ccc;height:200px;font-weight:700;display:flex;justify-content:center;align-items:center;margin:20px;border-radius:10px}
.post_box{background:#F5F5F5;border:.5px solid rgba(0,0,0,0.1);display:flex;flex-direction:row;align-items:center;border-radius:10px;margin:15px}
.post_box-left{flex-shrink:0}
.post_box-right{flex-shrink:1}
.small_content{border-radius:10px;padding:0 15px;overflow:hidden}
.small_content h3{font-size:1.1em;font-weight:700;color:#000;margin-top:0;margin-bottom:6px;text-align:left;width:100%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reading-info{font-size:.9em;padding-bottom:5px}
.summary{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:15px}
.small_img img{border:.5px solid rgba(0,0,0,0.3);min-width:160px;max-width:160px;min-height:130px;max-height:130px;border-radius:10px;object-fit:fill;display:block;padding:1px}
@media (min-width: 901px) {
.small_img img{border:.5px solid rgba(0,0,0,0.3);min-width:259px;max-width:259px;min-height:179px;max-height:179px;border-radius:10px;object-fit:fill;display:block;padding:1px}
}
/* bai viet - noi dung */
.post-title{text-align:center}
.post-box{padding:20px}
.post-body{padding-top:10px}
.post-body ul{list-style:none;padding:0;margin:.5rem 0}
.post-body ul li{position:relative;padding-left:20px;line-height:1.6}
.post-body ul li::before{content:"•";position:absolute;left:0;top:0;color:#337ab7;font-weight:700}
/* bai viet - chia se */
.social-share{margin-top:20px;padding:5px;border-top:1px solid #e0e0e0;text-align:center}
.social-share h3{color:#555;margin-bottom:10px}
.social-share .share-btn{display:inline-block;padding:5px 10px;color:#fff;text-decoration:none;border-radius:5px;margin:0 5px;font-size:13px;transition:transform .2s ease,box-shadow .2s ease}
.social-share .share-btn:hover{transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,0.1)}
.social-share .facebook{background-color:#3b5998}
.social-share .twitter{background-color:#1da1f2}
.social-share .linkedin{background-color:#0077b5}
.social-share .share-btn i{margin-right:5px}
.inline-related h2{margin:10px 0 15px;color:#333;border-bottom:2px solid #007cba}
.inline-related ol{padding-left:15px}
.inline-related-ct li{padding-left:0}
.inline-related-ct li h3{font-size:1.09em;display:inline;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}
/* bai viet - nut binh luan */
.comments-box h3{margin:10px 0 15px;color:#333;border-bottom:1px solid #007cba}
.CommentForm_new{margin:20px auto;padding:20px;background-color:#f9f9f9;border:1px solid #ddd;border-radius:8px}
.CommentForm_new h2{font-size:24px;color:#333;margin-bottom:20px}
.CommentForm_new input[type="text"],.CommentForm_new textarea{width:100%;padding:10px;margin:5px 0 15px;border:1px solid #ccc;border-radius:4px;box-sizing:border-box;font-size:14px;transition:border-color .3s}
.CommentForm_new input[type="text"]:focus,.CommentForm_new textarea:focus{border-color:#007bff;outline:none}
.CommentForm_new label{display:block;margin-bottom:5px;font-weight:700;color:#555;font-size:14px}
.CommentForm_new button[type="submit"]{background-color:#007bff;color:#fff;padding:12px 20px;border:none;border-radius:4px;cursor:pointer;font-size:16px;transition:background-color .3s}
.CommentForm_new button[type="submit"]:hover{background-color:#0056b3}