:root{--nen:#f3f4f6;--nen2:#fff;--chu:#1f2937;--chu2:#6b7280;--vien:#e5e7eb;--nhan:#475569;--nhan-nen:#e2e8f0;
--bong:#e8edf3;--sang:#fff3c4;--ql:#334155}
@media(prefers-color-scheme:dark){:root{--nen:#111418;--nen2:#1a1f26;--chu:#e5e7eb;--chu2:#9aa3af;--vien:#2a313b;--nhan:#cbd5e1;--nhan-nen:#2a313b;--bong:#232a33;--sang:#4a4217;--ql:#cbd5e1}}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--nen);color:var(--chu);font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;-webkit-text-size-adjust:100%}
button{font:inherit;color:inherit;cursor:pointer}
.an{display:none!important}
#app{display:flex;flex-direction:column;height:100%;height:100dvh}
#top{display:flex;align-items:center;gap:6px;padding:8px 12px;background:var(--nen2);border-bottom:1px solid var(--vien);padding-top:max(8px,env(safe-area-inset-top))}
.tieude{flex:1;min-width:0}
#ten-nhom{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#phu-de{font-size:12px;color:var(--chu2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#top button{background:none;border:0;font-size:20px;padding:6px 10px;border-radius:8px}
#top button:hover{background:var(--bong)}
#chinh{flex:1;display:flex;min-height:0;position:relative}
#cot-tin{flex:1;min-width:0;position:relative}
#cot-cd{width:440px;max-width:50%;display:flex;flex-direction:column;background:var(--nen2);border-left:1px solid var(--vien)}
.cd-dau{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--vien)}
.cd-dau b{flex:1}
#cd-dong{background:none;border:0;font-size:18px;padding:4px 8px}
#cd-dem{font-size:12px;color:var(--chu2)}
.vl{overflow-y:auto;overflow-x:hidden;height:100%;position:relative;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
#cd.vl{flex:1;height:auto;min-height:0}
.vl-in{position:relative;width:100%}
.hang-vl{position:absolute;left:0;right:0;padding:0 12px}
.hang-vl>.ruot{max-width:820px;margin:0 auto}
/* ngay */
.ngay{text-align:center;padding:10px 0 6px}
.ngay span{background:var(--nhan-nen);color:var(--nhan);font-size:12px;padding:3px 12px;border-radius:12px}
.cho{text-align:center;color:var(--chu2);font-size:13px;padding:14px}
/* tin */
.tin{display:flex;gap:8px;padding:2px 0;border-radius:8px}
.tin.moi{padding-top:8px}
.avt{flex:0 0 36px;width:36px;height:36px;border-radius:50%;color:#fff;font-weight:600;font-size:14px;display:flex;align-items:center;justify-content:center;margin-top:2px}
.avt.trong{visibility:hidden;height:1px}
.noi{min-width:0;max-width:calc(100% - 44px)}
.dau{font-size:13px;margin-bottom:1px}
.dau b{font-weight:600}
.gio{color:var(--chu2);font-size:12px;margin-left:6px}
.bong{display:inline-block;background:var(--nen2);border:1px solid var(--vien);border-radius:4px 14px 14px 14px;padding:6px 10px;max-width:100%;vertical-align:top}
.bong.hethong{background:none;border:0;color:var(--chu2);font-style:italic;padding-left:0}
.van{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}
.van a{color:#2563eb}
.van .nhac{color:#2563eb}
.da-sua,.da-xoa{font-size:11px;color:var(--chu2);margin-left:6px}
.da-xoa-van{opacity:.55;text-decoration:line-through}
.tin.sang>.noi .bong{background:var(--sang);transition:background 2s}
.tin.sang-nhat>.noi .bong{transition:background 2s}
mark{background:#fde68a;color:inherit;border-radius:2px}
@media(prefers-color-scheme:dark){mark{background:#7a6a12}}
/* trich dan */
.ql{display:block;text-align:left;border:0;border-left:3px solid var(--ql);background:var(--bong);border-radius:4px;padding:3px 8px;margin-bottom:4px;max-width:100%;width:100%;font-size:13px;color:var(--chu2)}
.ql b{color:var(--chu);font-weight:600;display:block}
.ql span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60ch}
/* tep */
.anh-luoi{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}
.anh{height:220px;max-width:100%;border-radius:8px;background:var(--bong);cursor:zoom-in;object-fit:cover;display:block}
.anh.don{object-fit:contain;max-width:min(100%,520px)}
.anh-luoi.nhieu .anh{height:150px;width:150px}
video.vid{height:300px;max-width:100%;border-radius:8px;background:#000;margin-top:4px;display:block}
audio{width:260px;max-width:100%;margin-top:4px;display:block;height:40px}
.tep-the{display:flex;align-items:center;gap:8px;margin-top:4px;padding:8px 10px;border:1px solid var(--vien);border-radius:10px;background:var(--nen);color:var(--chu);text-decoration:none;max-width:100%}
.tep-the .bd{font-size:22px}
.tep-the .ten{overflow-wrap:anywhere;min-width:0;font-size:14px}
.tep-the small{color:var(--chu2);display:block}
.thieu{margin-top:4px;color:var(--chu2);font-size:13px;font-style:italic}
.sticker{margin-top:4px;color:var(--chu2);font-size:13px;padding:10px 16px;border-radius:10px;background:var(--bong);display:inline-block}
.sticker b{font-size:20px;display:block;text-align:center}
/* chu de */
.cd-nut{display:inline-flex;align-items:center;gap:6px;margin-top:4px;background:var(--nhan-nen);color:var(--nhan);border:0;border-radius:12px;padding:3px 10px;font-size:13px}
.cd-nut:hover{filter:brightness(.96)}
.cd-goc{border-bottom:2px solid var(--vien);margin-bottom:6px}
/* nut cuoi */
#nut-cuoi{position:absolute;right:14px;bottom:14px;width:40px;height:40px;border-radius:50%;border:1px solid var(--vien);background:var(--nen2);box-shadow:0 2px 8px #0003;font-size:18px}
/* lop */
.lop{position:fixed;inset:0;background:#0008;z-index:30;display:flex;justify-content:center;align-items:flex-start;padding:max(10px,env(safe-area-inset-top)) 10px 10px}
.hop{background:var(--nen2);border-radius:12px;width:min(680px,100%);max-height:calc(100dvh - 20px);display:flex;flex-direction:column;padding:12px;gap:8px}
.hop-nho{width:min(460px,100%)}
.hang{display:flex;gap:8px;align-items:center;justify-content:space-between}
.hang b{flex:1}
.hang input[type=search]{flex:1;font:inherit;padding:9px 12px;border:1px solid var(--vien);border-radius:8px;background:var(--nen);color:var(--chu);min-width:0}
.hang input[type=date]{font:inherit;padding:6px;border:1px solid var(--vien);border-radius:8px;background:var(--nen);color:var(--chu)}
.dong{background:none;border:0;font-size:18px;padding:4px 8px}
.nut{background:var(--ql);color:var(--nen2);border:0;border-radius:8px;padding:7px 16px}
.tuy{font-size:13px;color:var(--chu2)}
.tt{font-size:12px;color:var(--chu2);min-height:16px}
#tim-kq,#ds-thang{overflow-y:auto;min-height:0;flex:1}
.kq{display:block;width:100%;text-align:left;background:none;border:0;border-bottom:1px solid var(--vien);padding:8px 4px}
.kq:hover{background:var(--bong)}
.kq .a{font-size:12px;color:var(--chu2)}
.kq .b{overflow-wrap:anywhere;white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.thang-nut{display:flex;justify-content:space-between;width:100%;background:none;border:0;border-bottom:1px solid var(--vien);padding:9px 4px;text-align:left}
.thang-nut:hover{background:var(--bong)}
.thang-nut span{color:var(--chu2);font-size:13px}
/* xem anh */
#xem-anh{position:fixed;inset:0;background:#000e;z-index:40;display:flex;align-items:center;justify-content:center}
#xem-anh img{max-width:96vw;max-height:88vh;object-fit:contain}
#xem-anh button{position:absolute;background:#fff2;border:0;color:#fff;font-size:22px;width:44px;height:44px;border-radius:50%}
.xa-dong{top:max(12px,env(safe-area-inset-top));right:12px}
.xa-truoc{left:10px;top:50%}.xa-sau{right:10px;top:50%}
.xa-tt{position:absolute;bottom:14px;color:#ddd;font-size:13px}
#bao{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#111c;color:#fff;padding:8px 16px;border-radius:18px;z-index:50;font-size:14px}
@media(max-width:760px){
  #cot-cd{position:absolute;inset:0;width:auto;max-width:none;z-index:10;border:0}
  .anh{height:190px}
  .noi{max-width:calc(100% - 44px)}
  .avt{flex-basis:32px;width:32px;height:32px}
}
#ve-hub{color:inherit;text-decoration:none;font-size:20px;padding:4px 8px;border-radius:8px}
#ve-hub:hover{background:var(--bong)}