/* Khối mở rộng của trang giới thiệu (tools/gioithieu_them.py) — 7/10/2026, trang AP "hữu ích".
   Màu nhấn theo --gtc của từng kỳ thi; nền, chữ, viền dùng biến của /style.css. */
.gx-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:22px;align-items:start}
.gx-2b{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}
.gx-chu-nho{font-size:13px;color:var(--muted);line-height:1.6;margin:8px 0 0}
.gx-cuon{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px;background:#fff}
.gx-hop{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.gx-hop h3{margin:0 0 8px;font-size:16px;color:var(--navy)}
.gx-hop ul{margin:0;padding-left:18px}.gx-hop li{margin:7px 0;font-size:14.5px;line-height:1.6}

/* --- vì sao --- */
.gx-hinh{margin:0;background:linear-gradient(160deg,#f6f8fd,#fff);border:1px solid var(--line);border-radius:16px;padding:14px}
.gx-bacs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-items:end;min-height:300px}
.gx-bac{display:flex;flex-direction:column;justify-content:flex-end;gap:8px}
.gx-bac-chu b{display:block;font-size:17px;color:var(--navy)}
.gx-bac-chu em{display:block;font-style:normal;font-weight:700;font-size:12.5px;color:var(--gtc);margin:2px 0}
.gx-bac-chu span{display:block;font-size:12.5px;line-height:1.5;color:var(--muted)}
.gx-bac-khoi{border-radius:12px 12px 4px 4px;background:var(--gtc);display:flex;align-items:flex-end;padding:10px}
.gx-bac-khoi i{font-style:normal;color:#fff;font-weight:800;font-size:22px;opacity:.9}
.gx-bac1 .gx-bac-khoi{height:60px;opacity:.38}.gx-bac2 .gx-bac-khoi{height:110px;opacity:.65}.gx-bac3 .gx-bac-khoi{height:170px}
.gx-hinh figcaption{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.55}
.gx-the4{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gx-the{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 15px;position:relative}
.gx-the i{font-style:normal;display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:color-mix(in srgb,var(--gtc) 14%,#fff);color:var(--gtc);font-weight:800;font-size:13px;margin-bottom:6px}
.gx-the b{display:block;color:var(--navy);font-size:15px;line-height:1.35}
.gx-the p{margin:6px 0 0;font-size:13.5px;line-height:1.6;color:var(--txt)}
.gx-ss{width:100%;border-collapse:collapse;font-size:14px;min-width:620px}
.gx-ss th,.gx-ss td{padding:10px 12px;border-top:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.5}
.gx-ss thead th{background:#f4f6fb;color:var(--navy);border-top:0;font-size:13.5px}
.gx-ss thead th:last-child{background:color-mix(in srgb,var(--gtc) 12%,#fff);color:var(--gtc)}
.gx-ss tbody th{color:var(--navy);width:150px;font-weight:700}
.gx-ss tbody td:last-child{background:color-mix(in srgb,var(--gtc) 5%,#fff);font-weight:600}
.gx-phi tbody td:last-child{background:none;font-weight:400}.gx-phi thead th:last-child{background:#f4f6fb;color:var(--navy)}

/* --- thang điểm --- */
.gx-dl{display:grid;gap:8px}
.gx-d{display:grid;grid-template-columns:52px 1fr auto;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.gx-d > b{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;font-size:22px;color:#fff;background:#94a3b8}
.gx-d5 > b{background:#15803d}.gx-d4 > b{background:#22a35a}.gx-d3 > b{background:#d9a40f}.gx-d2 > b{background:#e07a2f}.gx-d1 > b{background:#c2410c}
.gx-d strong{display:block;color:var(--navy);font-size:14.5px}.gx-d span{font-size:13px;color:var(--muted)}
.gx-d em{font-style:normal;font-size:13px;font-weight:700;color:var(--navy);text-align:right;max-width:150px}
.gx-bd{display:grid;gap:6px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.gx-bd1{display:grid;grid-template-columns:190px 1fr 46px 40px;gap:10px;align-items:center;font-size:13.5px}
.gx-bd1 span{color:var(--navy);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gx-bd-o{position:relative;height:14px;background:#eef1f7;border-radius:7px;overflow:hidden}
.gx-bd-o i{position:absolute;left:0;top:0;bottom:0;border-radius:7px}
.gx-bd3,.gx-c3{background:color-mix(in srgb,var(--gtc) 28%,#fff)}.gx-bd5,.gx-c5{background:var(--gtc)}
.gx-c3,.gx-c5{display:inline-block;width:10px;height:10px;border-radius:3px;vertical-align:-1px}
.gx-bd1 b{color:var(--gtc);text-align:right}.gx-bd1 small{color:var(--muted);text-align:right}

/* --- tab dùng chung --- */
.gx-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 12px}
.gx-tab{border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:999px;padding:7px 14px;
  font:600 13.5px/1.2 inherit;cursor:pointer}
.gx-tab:hover{border-color:var(--gtc)}
.gx-tab.on{background:var(--gtc);border-color:var(--gtc);color:#fff}

/* --- lịch thi --- */
.gx-lt{width:100%;border-collapse:collapse;font-size:13.5px;min-width:620px}
.gx-lt th,.gx-lt td{padding:9px 12px;border-top:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.55}
.gx-lt thead th{background:#f4f6fb;border-top:0;color:var(--navy)}
.gx-lt tbody th{white-space:nowrap;color:var(--navy);width:130px}
.gx-qc{display:grid;gap:8px}
.gx-faq{background:#fff;border:1px solid var(--line);border-radius:12px}
.gx-faq summary{cursor:pointer;list-style:none;padding:13px 44px 13px 16px;font-weight:700;color:var(--navy);font-size:15px;position:relative;line-height:1.45}
.gx-faq summary::-webkit-details-marker{display:none}
.gx-faq summary::after{content:"";position:absolute;right:18px;top:50%;width:9px;height:9px;border-right:2px solid var(--gtc);
  border-bottom:2px solid var(--gtc);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.gx-faq[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.gx-faq p,.gx-faq ul{margin:0;padding:0 16px 14px;font-size:14.5px;line-height:1.7;color:var(--txt)}
.gx-faq ul{padding-left:34px}.gx-faq li{margin:4px 0}

/* --- video --- */
.gx-vids{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.gx-vid{position:relative;border:0;padding:0;background:#fff;border-radius:14px;overflow:hidden;cursor:pointer;text-align:left;
  box-shadow:0 1px 0 var(--line),0 0 0 1px var(--line)}
.gx-vid img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.gx-vid b{display:block;padding:10px 12px;font-size:14px;color:var(--navy)}
.gx-play{position:absolute;left:50%;top:38%;width:56px;height:40px;margin:-20px 0 0 -28px;border-radius:12px;background:rgba(237,14,87,.92)}
.gx-play::after{content:"";position:absolute;left:23px;top:12px;border-left:14px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
.gx-vid iframe{display:block;width:100%;aspect-ratio:16/9;border:0}

/* --- chọn môn theo ngành --- */
.gx-muc3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 14px}
.gx-muc3 div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.gx-muc3 b{color:var(--navy);font-size:15px}.gx-muc3 span{margin-left:6px;font-weight:800;color:var(--gtc)}
.gx-muc3 p{margin:4px 0 0;font-size:13px;color:var(--muted);line-height:1.5}
.gx-ng-mo{margin:0 0 10px;font-size:14.5px;color:var(--txt);line-height:1.6}
.gx-lops{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;position:relative}
.gx-lop{padding:14px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:7px;align-items:flex-start}
.gx-lop:first-child{border-left:0}
.gx-lop-td{font-weight:800;color:var(--navy);font-size:14px;padding:4px 10px;border-radius:8px;background:#f4f6fb;margin-bottom:2px}
.gx-chip{display:inline-block;text-decoration:none;font-size:13.5px;font-weight:600;color:var(--navy);background:#f4f6fb;
  border:1px solid var(--line);border-radius:10px;padding:6px 10px;line-height:1.3}
.gx-chip:hover{border-color:var(--gtc);color:var(--gtc)}
.gx-chip.loi{background:color-mix(in srgb,var(--gtc) 12%,#fff);border-color:color-mix(in srgb,var(--gtc) 40%,#fff);color:var(--gtc)}
.gx-chip.mini{padding:1px 7px;font-size:12px;border-radius:6px}

/* --- danh mục môn --- */
.gx-loc{padding:8px 0 2px}
.gx-tim{width:100%;max-width:420px;box-sizing:border-box;padding:10px 14px;border:1px solid #d5dbe8;border-radius:10px;font:inherit;font-size:15px;background:#fff}
.gx-tabs-loc{margin-top:8px}
.gx-nhom h3 small{color:var(--muted);font-weight:500;font-size:13px}
.gx-mon{background:#fff;border:1px solid var(--line);border-radius:12px;margin:0 0 8px;scroll-margin-top:170px}
.gx-mon[open]{border-color:color-mix(in srgb,var(--gtc) 45%,#fff);box-shadow:0 6px 22px rgba(20,40,80,.07)}
.gx-mon summary{cursor:pointer;list-style:none;padding:12px 40px 12px 15px;display:grid;gap:3px;position:relative}
.gx-mon summary::-webkit-details-marker{display:none}
.gx-mon summary::after{content:"";position:absolute;right:16px;top:20px;width:8px;height:8px;border-right:2px solid var(--gtc);border-bottom:2px solid var(--gtc);transform:rotate(45deg)}
.gx-mon[open] summary::after{transform:rotate(-135deg);top:24px}
.gx-mon-ten{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.gx-mon-ten b{color:var(--navy);font-size:15.5px;margin-right:4px}
.gx-mon-vi{font-size:13px;color:var(--muted)}
.gx-mon-tom{font-size:13px;color:var(--txt)}
.gx-nh{font-style:normal;font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:999px}
.gx-nh.sach{background:#fff1f5;color:#c2185b}.gx-nh.khu{background:#eef4ff;color:#2a4a85}
.gx-nh.lop{background:#ecfdf3;color:#15803d}.gx-nh.pilot{background:#fff7e6;color:#b45309}
.gx-mon-than{padding:2px 15px 15px;border-top:1px solid var(--line)}
.gx-mon-than h4{margin:16px 0 7px;font-size:14px;color:var(--navy)}
.gx-tb{width:100%;border-collapse:collapse;font-size:13.5px;min-width:560px}
.gx-tb th,.gx-tb td{padding:8px 11px;border-top:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.5}
.gx-tb thead th{background:#f4f6fb;border-top:0;color:var(--navy);font-size:12.5px}
.gx-tb tbody th{color:var(--navy);font-weight:650}
.gx-tb th small{display:block;font-weight:400;color:var(--muted);font-size:12.5px;margin-top:2px}
.gx-rb .gx-so{font-weight:800;color:var(--gtc);white-space:nowrap}
.gx-frq,.gx-ul{margin:0;padding-left:18px;font-size:13.5px;line-height:1.6}
.gx-frq li{margin:5px 0}.gx-frq b{color:var(--navy)}.gx-frq em{font-style:normal;color:var(--gtc);font-weight:700;margin-left:6px}
.gx-frq span{display:block;color:var(--txt)}
.gx-cr{margin:14px 0 0;background:#fffaf0;border:1px solid #f4e2b8;border-radius:12px;padding:10px 14px;font-size:13.5px}
.gx-cr b{color:#92400e}.gx-cr ul{margin:4px 0 0;padding-left:18px;line-height:1.6}
.gx-moi{font-size:13.5px;background:#f4f6fb;border-radius:10px;padding:9px 12px;margin:12px 0 0;line-height:1.6}
.gx-moi b{color:var(--navy)}.gx-moi ul{margin:4px 0 0;padding-left:18px}
.gx-pp-o{display:flex;height:16px;border-radius:8px;overflow:hidden;background:#eef1f7}
.gx-pp-o i{display:block;height:100%}
.gx-p5{background:#15803d}.gx-p4{background:#22a35a}.gx-p3{background:#d9a40f}.gx-p2{background:#e07a2f}.gx-p1{background:#c2410c}
.gx-pp small{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}
.gx-tl{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:7px}
.gx-tl a{display:flex;justify-content:space-between;gap:8px;align-items:center;text-decoration:none;border:1px solid var(--line);
  border-radius:10px;padding:8px 11px;background:#fbfcfe;font-size:13px;color:var(--navy)}
.gx-tl a:hover{border-color:var(--gtc)}
.gx-tl a b{font-weight:650}.gx-tl a span{color:var(--muted);font-size:12px;white-space:nowrap}
.gx-tl a::before{content:"PDF";font-size:10px;font-weight:800;color:#fff;background:#c2410c;border-radius:4px;padding:2px 4px;order:-1}
.gx-tl a[href$="questions"]::before,.gx-tl a:not([href$=".pdf"])::before{content:"WEB";background:var(--navy)}
.gx-mon-nut{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.gx-mon-nut .btn{padding:8px 14px;font-size:13.5px}

/* --- sách --- */
.gx-sachl{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.gx-sach{background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;display:flex;flex-direction:column;gap:4px;scroll-margin-top:130px}
.gx-sach:target{outline:3px solid var(--gtc)}
.gx-sach-hinh{position:relative;border:0;padding:0;background:#eef1f7;border-radius:10px;aspect-ratio:4/3;overflow:hidden;cursor:zoom-in;margin-bottom:6px}
.gx-bia{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:8% 50%}
.gx-trong{position:absolute;right:8px;bottom:-34px;width:40%;border-radius:4px;box-shadow:0 8px 22px rgba(10,20,40,.35);
  transform:rotate(4deg);transition:transform .25s}
.gx-sach-hinh:hover .gx-trong{transform:rotate(0) translateY(-18px)}
.gx-sach b{color:var(--navy);font-size:15px}.gx-sach > span{font-size:12.5px;color:var(--muted)}
.gx-sach-nut{display:flex;gap:6px;margin-top:8px}
.gx-sach-nut .btn{flex:1;justify-content:center;text-align:center;padding:8px 10px;font-size:13.5px}
.gx-pdf{position:fixed;inset:0;z-index:1000;background:rgba(10,18,36,.72);display:flex;align-items:center;justify-content:center;padding:16px}
.gx-pdf[hidden]{display:none}
.gx-pdf-hop{background:#fff;border-radius:14px;width:min(1000px,100%);height:min(92vh,1200px);display:flex;flex-direction:column;overflow:hidden}
.gx-pdf-dau{display:flex;gap:8px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line)}
.gx-pdf-dau b{flex:1;color:var(--navy);font-size:15px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gx-pdf-dau .btn{padding:7px 12px;font-size:13.5px}
.gx-pdf iframe{flex:1;width:100%;border:0;background:#525659}

/* --- e-learning --- */
.gx-so4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 16px}
.gx-so4 div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.gx-so4 b{display:block;font-size:26px;color:var(--gtc);line-height:1.1}.gx-so4 span{font-size:13px;color:var(--muted)}
.gx-mays{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.gx-may{margin:0}
.gx-may-khung{background:#fff;border:1px solid #d9dfeb;border-radius:12px;box-shadow:0 10px 28px rgba(20,40,80,.10);
  padding:30px 12px 12px;position:relative;min-height:230px;font-size:12px}
.gx-may-cham{position:absolute;left:10px;top:10px;display:flex;gap:4px}
.gx-may-cham i{width:8px;height:8px;border-radius:50%;background:#e3e8f0}
.gx-may-cham i:first-child{background:#f87171}.gx-may-cham i:nth-child(2){background:#fbbf24}.gx-may-cham i:nth-child(3){background:#34d399}
.gx-may figcaption{margin-top:9px;font-weight:700;color:var(--navy);font-size:14px;text-align:center}
.gx-m-td{font-weight:800;color:var(--navy);font-size:12px;margin-bottom:8px}
.gx-m-unit{list-style:none;margin:0;padding:0;display:grid;gap:7px}
.gx-m-unit li{display:grid;grid-template-columns:1fr 42px;gap:2px 6px;align-items:center}
.gx-m-unit span{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--txt)}
.gx-m-unit em{grid-row:1/3;grid-column:2;font-style:normal;font-size:9.5px;white-space:nowrap;color:var(--muted);text-align:right}
.gx-m-unit i{height:5px;border-radius:3px;background:linear-gradient(90deg,var(--gtc) var(--w),#eef1f7 var(--w))}
.gx-m-cau{margin:0 0 8px;font-size:12px;line-height:1.5;color:var(--txt)}
.gx-m-ch{border:1px solid var(--line);border-radius:7px;padding:4px 8px;margin:4px 0;font-size:11.5px}
.gx-m-ch.dung{border-color:#22a35a;background:#ecfdf3;color:#15803d;font-weight:700}
.gx-m-giai{margin-top:8px;background:#f4f6fb;border-radius:7px;padding:6px 8px;font-size:11px;line-height:1.5}
.gx-m-thi{display:flex;justify-content:space-between;gap:6px;align-items:center;background:var(--navy);color:#fff;border-radius:7px;padding:6px 8px}
.gx-m-thi b{color:#fff;font-size:12px;white-space:nowrap}.gx-m-thi span{font-weight:600;font-size:10.5px}
.gx-m-luoi{display:grid;grid-template-columns:repeat(6,1fr);gap:4px;margin:6px 0}
.gx-m-luoi i{font-style:normal;font-size:10px;text-align:center;border:1px solid var(--line);border-radius:5px;padding:4px 0;color:var(--muted)}
.gx-m-luoi i.x{background:#eef4ff;border-color:#c7d6f5;color:var(--navy)}
.gx-m-luoi i.d{background:#fff7e6;border-color:#f4c56a;color:#b45309}
.gx-m-luoi i.c{background:var(--gtc);border-color:var(--gtc);color:#fff}
.gx-m-chu{margin:6px 0 0;font-size:11px;color:var(--muted);line-height:1.45}
.gx-m-bc{display:flex;gap:6px;align-items:flex-end;height:120px;padding-top:6px}
.gx-m-bc div{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;height:100%;justify-content:flex-end}
.gx-m-bc i{width:100%;height:var(--h);background:color-mix(in srgb,var(--gtc) 70%,#fff);border-radius:4px 4px 0 0}
.gx-m-bc i.yeu{background:#f59e0b}
.gx-m-bc span{font-size:9.5px;color:var(--muted)}
.gx-quy{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0;padding:0}
.gx-quy li{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px 6px 6px;font-size:13.5px;font-weight:600;color:var(--navy)}
.gx-quy i{font-style:normal;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--gtc);color:#fff;font-size:12px}

/* --- khác biệt + học viên --- */
.gx-kbl{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gx-kb{background:linear-gradient(170deg,color-mix(in srgb,var(--gtc) 7%,#fff),#fff 60%);border:1px solid var(--line);border-radius:16px;padding:16px}
.gx-kb svg{width:34px;height:34px;fill:none;stroke:var(--gtc);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.gx-kb b{display:block;color:var(--navy);font-size:15.5px;margin:8px 0 6px;line-height:1.35}
.gx-kb p{margin:0;font-size:13.5px;line-height:1.65;color:var(--txt)}
.gx-hvl{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gx-hv{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.gx-hv a{display:block;height:220px;overflow:hidden;background:#eef1f7}
.gx-hv img{width:100%;height:100%;object-fit:cover;object-position:top}
.gx-hv figcaption{padding:12px 14px 14px;display:flex;flex-direction:column;gap:3px}
.gx-hv b{color:var(--gtc);font-size:16px}.gx-hv small{color:var(--muted);font-size:12.5px}
.gx-hv q{font-size:14px;line-height:1.55;color:var(--navy);font-weight:600;margin-top:4px}
.gx-hv span{font-size:12px;color:var(--muted)}

@media (max-width:980px){
  .gx-2,.gx-2b{grid-template-columns:1fr}
  .gx-mays,.gx-kbl,.gx-hvl{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .gx-the4,.gx-muc3,.gx-lops,.gx-mays,.gx-kbl,.gx-hvl{grid-template-columns:1fr}
  .gx-so4{grid-template-columns:1fr 1fr}
  .gx-lop{border-left:0;border-top:1px solid var(--line)}.gx-lop:first-child{border-top:0}
  .gx-bd1{grid-template-columns:120px 1fr 40px}.gx-bd1 small{display:none}
  .gx-d{grid-template-columns:44px 1fr}.gx-d em{grid-column:2;text-align:left;max-width:none}
  .gx-loc{top:96px}
  .gx-pdf{padding:0}.gx-pdf-hop{border-radius:0;height:100%}
}
.gx-h4-nho{font-weight:500;color:var(--muted);font-size:12px;margin-left:6px}
.gx-nguon{margin:14px 0 0;font-size:13px;color:var(--muted)}
.gx-nguon summary{cursor:pointer;font-weight:600}
.gx-nguon ul{margin:6px 0 0;padding-left:18px;columns:2;column-gap:28px}.gx-nguon li{margin:3px 0;break-inside:avoid}
@media (max-width:640px){.gx-nguon ul{columns:1}}
.gx-lt tr.gx-muon th,.gx-lt tr.gx-muon td{background:#fbf7ee;color:#6b5a2e}
.gx-hops{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;align-items:start}
.gx-hop p{margin:0 0 6px;font-size:13.5px;line-height:1.6}.gx-hop a{font-size:13.5px;font-weight:600}
.gx-hop ul{margin:0 0 6px;padding-left:18px}.gx-hop li{margin:4px 0;font-size:13.5px;line-height:1.55}
.gx-hop-rong{grid-column:1/-1}
.gx-hop h3{font-size:15px}
@media (max-width:640px){.gx-hops{grid-template-columns:1fr}}
.gx-2c{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.gx-h3-dau{margin-top:0}
.gx-2c .gx-bd1{grid-template-columns:150px 1fr 40px 36px}
@media (max-width:980px){.gx-hops{grid-template-columns:1fr 1fr}.gx-2c{grid-template-columns:1fr}}
.gx-nh.iig{background:#eefaf3;color:#166534}.gx-nh.ngoai{background:#f3f4f6;color:#6b7280}
.gx-vn{background:linear-gradient(160deg,color-mix(in srgb,var(--gtc) 8%,#fff),#fff 55%);border:1px solid color-mix(in srgb,var(--gtc) 30%,#fff);
  border-radius:18px;padding:18px 20px;margin:4px 0 18px}
.gx-vn-dau h3{margin:0;color:var(--navy);font-size:18px}.gx-vn-dau p{margin:4px 0 12px;font-size:14px;color:var(--txt);line-height:1.6}
.gx-vn-2{display:grid;grid-template-columns:1fr 1.2fr;gap:22px}
.gx-vn h4{margin:0 0 8px;font-size:14px;color:var(--navy)}
.gx-vn-phi{display:grid;gap:6px;margin-bottom:8px}
.gx-vn-phi div{display:flex;justify-content:space-between;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 12px}
.gx-vn-phi span{font-size:13.5px}.gx-vn-phi b{color:var(--gtc);font-size:16px;white-space:nowrap}
.gx-vn-buoc{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:7px}
.gx-vn-buoc li{display:flex;gap:9px;font-size:13.5px;line-height:1.55}
.gx-vn-buoc i{font-style:normal;flex:0 0 22px;height:22px;border-radius:50%;background:var(--gtc);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:800}
.gx-vn-mon{font-size:13px;line-height:1.7;margin:0;color:var(--navy)}
@media (max-width:760px){.gx-vn-2{grid-template-columns:1fr}}
@media (max-width:640px){
  .gx-tabs-ng,.gx-tabs-loc,.gx-tabs[data-nhom="lt"]{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-left:-11px;margin-right:-11px;padding:0 11px}
  .gx-tabs-ng::-webkit-scrollbar,.gx-tabs-loc::-webkit-scrollbar{display:none}
  .gx-tab{flex:0 0 auto;white-space:nowrap}
  .gx-muc3{grid-template-columns:repeat(3,1fr);gap:6px}.gx-muc3 div{padding:9px 10px}.gx-muc3 p{display:none}
  .gx-muc3 b{display:block;font-size:14px}.gx-muc3 span{margin:0;font-size:13px}
}
/* thang điểm khuôn chung: mức là chữ (Vàng, Bạc, C1, 1400…) chứ không phải số 1–5 */
.gx-dm > b{width:auto;min-width:44px;height:auto;min-height:44px;padding:4px 10px;font-size:14px;line-height:1.25;text-align:center;background:var(--gtc)}
.gx-dm em{max-width:220px}
.gx-vn-2>div{min-width:0}.gx-vn,.gx-vn *{overflow-wrap:anywhere}
.gx-vn-phi div{flex-wrap:wrap}
.gx-vn-phi b{white-space:normal;text-align:right}
/* khối video (video.json): thẻ 16:9 có thời lượng; short khung dọc */
.gx-vids{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-bottom:14px}
.gx-vids-s{grid-template-columns:repeat(auto-fill,minmax(150px,170px))}
.gx-vid{display:flex;flex-direction:column}
.gx-vid-anh{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#0f172a}
.gx-vid-anh img{width:100%;height:100%;object-fit:cover;aspect-ratio:auto}
.gx-vid-s .gx-vid-anh{aspect-ratio:9/16}
.gx-vid .gx-play{top:50%}
.gx-vid-tg{position:absolute;right:8px;bottom:8px;font-style:normal;font-size:12px;font-weight:700;color:#fff;background:rgba(0,0,0,.75);border-radius:5px;padding:2px 6px}
.gx-vid b{font-size:13.5px;line-height:1.4}
.gx-vid-s iframe{aspect-ratio:9/16}
.gx-vid .gx-play{width:46px;height:32px;margin:-16px 0 0 -23px;border-radius:9px;opacity:.88;transition:opacity .15s,transform .15s}
.gx-vid .gx-play::after{left:18px;top:9px;border-left-width:12px;border-top-width:7px;border-bottom-width:7px}
.gx-vid:hover .gx-play{opacity:1;transform:scale(1.08)}
.gx-lops-1{grid-template-columns:1fr}.gx-lops-2{grid-template-columns:1fr 1fr}.gx-lops-4{grid-template-columns:repeat(4,1fr)}
.gx-ltr-mo{margin:0 0 4px;font-size:13.5px;color:var(--txt);line-height:1.5}
@media (max-width:640px){.gx-lops-2,.gx-lops-4{grid-template-columns:1fr}}

/* Ảnh thật trang trí dưới khối khác biệt (ANH_KB) */
.gx-anh3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.gx-anh3 figure{margin:0;border-radius:14px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.gx-anh3 img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.gx-anh3 figcaption{padding:8px 11px;font-size:12.5px;color:var(--muted);line-height:1.45}
@media(max-width:640px){.gx-anh3{grid-template-columns:1fr 1fr}.gx-anh3 figure:first-child{grid-column:1/-1}}