{"id":1788,"date":"2026-08-21T19:18:16","date_gmt":"2026-08-21T12:18:16","guid":{"rendered":"https:\/\/hatdau.com\/?page_id=1788"},"modified":"2026-08-21T19:40:09","modified_gmt":"2026-08-21T12:40:09","slug":"bai-giang","status":"publish","type":"page","link":"https:\/\/hatdau.com\/?page_id=1788","title":{"rendered":"B\u00e0i Gi\u1ea3ng"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1788\" class=\"elementor elementor-1788\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e6c016c e-con e-atomic-element e-flexbox-base e-3659eed \" data-id=\"e6c016c\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"e6c016c\">\n    \t\t<div class=\"elementor-element elementor-element-6afb1cf elementor-widget elementor-widget-shortcode\" data-id=\"6afb1cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><style>\n        .entry-header, .page-header, h1.entry-title, h1.page-title {\n            display: none !important;\n        }\n\n        .bai-giang-main-wrapper, .bai-giang-main-wrapper * {\n            font-family: \"Bitter\", serif !important;\n            box-sizing: border-box !important;\n        }\n\n        .bai-giang-main-title {\n            color: #ffffff !important;\n            font-size: 28px !important;\n            font-weight: 700 !important;\n            margin-top: 0 !important;\n            margin-bottom: 24px !important;\n            text-shadow: 0 2px 8px rgba(0,0,0,0.4) !important;\n            font-family: \"Bitter\", serif !important;\n            line-height: 1.3 !important;\n        }\n\n        .ppt-lock-card-box {\n            background: #ffffff;\n            padding: 28px;\n            border-radius: 16px;\n            box-shadow: 0 4px 20px rgba(0,0,0,0.05);\n            margin-bottom: 25px;\n            border: 1px solid #e8f5e9;\n            width: 100% !important;\n        }\n\n        .ppt-iframe-wrapper {\n            position: relative;\n            width: 100%;\n            height: 0;\n            padding-bottom: 56.25%;\n            overflow: hidden;\n            border-radius: 12px;\n            border: 1px solid #cbd5e1;\n            background: #ffffff;\n        }\n        .ppt-iframe-wrapper iframe {\n            position: absolute;\n            top: 0;\n            left: 0;\n            width: 100% !important;\n            height: 100% !important;\n            border: 0;\n        }\n\n        .ppt-contact-overlay {\n            background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 100%);\n            border: 2px dashed #006414;\n            border-radius: 12px;\n            padding: 22px;\n            text-align: center;\n            margin-top: 20px;\n        }\n\n        .btn-contact-group {\n            display: flex;\n            align-items: center;\n            justify-content: center;\n            gap: 12px;\n            flex-wrap: wrap;\n            margin-top: 14px;\n        }\n        .btn-contact-zalo {\n            background: #006414;\n            color: #ffffff !important;\n            padding: 10px 22px;\n            border-radius: 8px;\n            text-decoration: none;\n            font-weight: 700;\n            font-size: 14px;\n            display: inline-block;\n            transition: all 0.2s ease;\n            text-shadow: none !important;\n        }\n        .btn-contact-fb {\n            background: #1877f2;\n            color: #ffffff !important;\n            padding: 10px 22px;\n            border-radius: 8px;\n            text-decoration: none;\n            font-weight: 700;\n            font-size: 14px;\n            display: inline-block;\n            transition: all 0.2s ease;\n            text-shadow: none !important;\n        }\n        .btn-contact-zalo:hover, .btn-contact-fb:hover {\n            opacity: 0.9;\n            transform: translateY(-1px);\n        }\n\n        .bg-comments-box {\n            background: #ffffff;\n            padding: 28px;\n            border-radius: 16px;\n            box-shadow: 0 4px 20px rgba(0,0,0,0.05);\n            border: 1px solid #e8f5e9;\n            margin-top: 30px;\n        }\n        .bg-comments-box h3 {\n            color: #006414 !important;\n            font-size: 22px;\n            font-weight: 700;\n            border-bottom: 2px solid #f0f4f1;\n            padding-bottom: 12px;\n            margin-bottom: 20px;\n            text-shadow: none !important;\n        }\n\n        @media (max-width: 1024px) {\n            .ppt-lock-card-box, .bg-comments-box { padding: 16px !important; }\n            .btn-contact-group { flex-direction: column; }\n            .btn-contact-zalo, .btn-contact-fb { width: 100%; }\n        }\n    <\/style><script>\n        function xacNhanXoaLoiNhac(url) {\n            if (confirm(\"B\u1ea1n c\u00f3 ch\u1eafc ch\u1eafn mu\u1ed1n x\u00f3a l\u1eddi nh\u1eafc n\u00e0y?\")) {\n                window.location.href = url;\n            }\n            return false;\n        }\n\n        document.addEventListener(\"DOMContentLoaded\", function() {\n            var navLinks = document.querySelectorAll(\"header nav a, .main-navigation a, .elementor-nav-menu a\");\n            navLinks.forEach(function(link) {\n                if (link.getAttribute(\"href\") && link.getAttribute(\"href\").indexOf(\"bai-giang\") !== -1) {\n                    link.style.setProperty(\"color\", \"#006414\", \"important\");\n                    link.style.setProperty(\"font-weight\", \"700\", \"important\");\n                }\n            });\n        });\n    <\/script><div class=\"bai-giang-main-wrapper\" style=\"max-width: 1080px; margin: 0 auto; padding: 20px 0;\"><h2 class=\"bai-giang-main-title\">B\u00e0i Gi\u1ea3ng<\/h2><div style=\"margin-bottom: 35px;\"><div style=\"display: inline-block; background: #006414; color: #ffffff !important; padding: 8px 24px; border-radius: 10px; font-weight: 700; font-size: 18px; margin-bottom: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); text-shadow: none !important;\">Kh\u1ed1i 10<\/div><div style=\"background: #ffffff; border-radius: 16px; padding: 26px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); border: 1px solid #e8f5e9;\"><div style=\"display: flex; flex-direction: column; gap: 14px;\"><div style=\"background: #fcfdfe; border-radius: 12px; padding: 18px 22px; border: 1px solid #eef2ed; display: flex; align-items: center; justify-content: space-between;\"><div><h4 style=\"margin: 0 0 4px 0; color: #006414 !important; font-size: 17px; font-weight: 700; text-shadow: none !important;\">Ch\u1ee7 \u0111\u1ec1 1: ...<\/h4><span style=\"color: #6b7280; font-size: 13px;\">B\u1ea5m n\u00fat b\u00ean c\u1ea1nh \u0111\u1ec3 xem danh s\u00e1ch b\u00e0i gi\u1ea3ng<\/span><\/div><a href=\"https:\/\/hatdau.com\/?page_id=1788&#038;chude_id=17\" style=\"background: #006414; color: #ffffff !important; padding: 8px 20px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 14px; text-shadow: none !important;\">Xem B\u00e0i Gi\u1ea3ng \u203a<\/a><\/div><\/div><\/div><\/div><div style=\"margin-bottom: 35px;\"><div style=\"display: inline-block; background: #006414; color: #ffffff !important; padding: 8px 24px; border-radius: 10px; font-weight: 700; font-size: 18px; margin-bottom: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); text-shadow: none !important;\">Kh\u1ed1i 11<\/div><div style=\"background: #ffffff; border-radius: 16px; padding: 26px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); border: 1px solid #e8f5e9;\"><div style=\"color: #6b7280; font-size: 14px; font-style: italic;\">Ch\u01b0a c\u00f3 b\u00e0i gi\u1ea3ng n\u00e0o \u0111\u01b0\u1ee3c th\u00eam v\u00e0o kh\u1ed1i n\u00e0y.<\/div><\/div><\/div><div style=\"margin-bottom: 35px;\"><div style=\"display: inline-block; background: #006414; color: #ffffff !important; padding: 8px 24px; border-radius: 10px; font-weight: 700; font-size: 18px; margin-bottom: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); text-shadow: none !important;\">Kh\u1ed1i 12<\/div><div style=\"background: #ffffff; border-radius: 16px; padding: 26px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); border: 1px solid #e8f5e9;\"><div style=\"color: #6b7280; font-size: 14px; font-style: italic;\">Ch\u01b0a c\u00f3 b\u00e0i gi\u1ea3ng n\u00e0o \u0111\u01b0\u1ee3c th\u00eam v\u00e0o kh\u1ed1i n\u00e0y.<\/div><\/div><\/div><div style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin-top: 25px;\"><div style=\"background: #ffffff; padding: 26px; border-radius: 16px; border-left: 6px solid #006414; box-shadow: 0 4px 18px rgba(0,0,0,0.05); border-top: 1px solid #e8f5e9; border-right: 1px solid #e8f5e9; border-bottom: 1px solid #e8f5e9;\"><h3 style=\"margin-top: 0; color: #006414 !important; font-size: 20px; font-weight: 700; margin-bottom: 16px; text-shadow: none !important;\">L\u1eddi Nh\u1eafc T\u1eeb Gi\u00e1o Vi\u00ean<\/h3><form method=\"POST\" style=\"margin-bottom: 20px;\"><input type=\"hidden\" name=\"action_loi_nhac\" value=\"add_loi_nhac\" \/><textarea name=\"noi_dung_loi_nhac\" placeholder=\"Nh\u1eadp l\u1eddi nh\u1eafc cho h\u1ecdc sinh...\" rows=\"3\" required style=\"width: 100%; border: 1px solid #c8e6c9; border-radius: 10px; padding: 10px; font-size: 14px; margin-bottom: 10px;\"><\/textarea><button type=\"submit\" style=\"background: #006414; color: #ffffff !important; border: none; padding: 8px 20px; border-radius: 8px; font-weight: 600; font-size: 14px; cursor: pointer; text-shadow: none !important;\">\u0110\u0103ng L\u1eddi Nh\u1eafc<\/button><\/form><div style=\"display: flex; flex-direction: column; gap: 12px; max-height: 280px; overflow-y: auto;\"><div style=\"background: #f0fdf4; border: 1px solid #c8e6c9; padding: 12px 16px; border-radius: 10px; position: relative;\"><div style=\"display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px;\"><strong style=\"color: #006414; font-size: 14px;\">\u0110\u1ee9c Ng\u1ecdc<\/strong><span style=\"font-size: 11px; color: #6b7280;\">06\/09\/2026 14:40<\/span><\/div><p style=\"margin: 0; color: #1f2937; font-size: 14px; line-height: 1.5;\">Nh\u1edb h\u1ecdc b\u00e0i n\u00e9<\/p><\/div><\/div><\/div><div style=\"background: #ffffff; padding: 26px; border-radius: 16px; border: 1px solid #e8f5e9; box-shadow: 0 4px 18px rgba(0,0,0,0.05);\"><h3 style=\"margin-top: 0; color: #006414 !important; font-size: 20px; font-weight: 700; margin-bottom: 16px; text-shadow: none !important;\">H\u1ecdc Sinh Ti\u00eau Bi\u1ec3u Tu\u1ea7n N\u00e0y<\/h3><div style=\"display: flex; flex-direction: column; gap: 8px; max-height: 380px; overflow-y: auto;\"><div style=\"background: #fcfdfe; border: 1px solid #eef2ed; padding: 10px 14px; border-radius: 10px; display: flex; align-items: center; justify-content: space-between;\"><div><strong style=\"color: #006414; font-size: 14px; display: block;\">Ki\u00ean (Ch\u1ee7 \u0111\u1ec1 2: Xin ch\u00e0o)<\/strong><span style=\"font-size: 12px; color: #6b7280; font-weight: 600;\">T\u1ed5ng: 10.4 \u0111i\u1ec3m \u0111i\u1ec3m<\/span><\/div><span style=\"background: #e8f5e9; color: #006414; font-weight: 700; font-size: 11px; padding: 3px 10px; border-radius: 20px;\">Top 1<\/span><\/div><div style=\"background: #fcfdfe; border: 1px solid #eef2ed; padding: 10px 14px; border-radius: 10px; display: flex; align-items: center; justify-content: space-between;\"><div><strong style=\"color: #006414; font-size: 14px; display: block;\">hi (Ch\u1ee7 \u0111\u1ec1 2: Xin ch\u00e0o)<\/strong><span style=\"font-size: 12px; color: #6b7280; font-weight: 600;\">T\u1ed5ng: 5.6 \u0111i\u1ec3m \u0111i\u1ec3m<\/span><\/div><span style=\"background: #e8f5e9; color: #006414; font-weight: 700; font-size: 11px; padding: 3px 10px; border-radius: 20px;\">Top 2<\/span><\/div><div style=\"background: #fcfdfe; border: 1px solid #eef2ed; padding: 10px 14px; border-radius: 10px; display: flex; align-items: center; justify-content: space-between;\"><div><strong style=\"color: #006414; font-size: 14px; display: block;\">Tr\u1ea7n Ch\u00ed Ki\u00ean (Ch\u1ee7 \u0111\u1ec1 2: Xin ch\u00e0o)<\/strong><span style=\"font-size: 12px; color: #6b7280; font-weight: 600;\">T\u1ed5ng: 3 \u0111i\u1ec3m \u0111i\u1ec3m<\/span><\/div><span style=\"background: #e8f5e9; color: #006414; font-weight: 700; font-size: 11px; padding: 3px 10px; border-radius: 20px;\">Top 3<\/span><\/div><\/div><\/div><\/div><\/div><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1788","page","type-page","status-publish","hentry"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/pages\/1788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hatdau.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1788"}],"version-history":[{"count":5,"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/pages\/1788\/revisions"}],"predecessor-version":[{"id":1793,"href":"https:\/\/hatdau.com\/index.php?rest_route=\/wp\/v2\/pages\/1788\/revisions\/1793"}],"wp:attachment":[{"href":"https:\/\/hatdau.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}