/* Cổng nội bộ NOUS — safari.nous.vn. Màu + chữ theo bộ nhận diện các web NOUS (Be Vietnam Pro, hồng đất #DB9087,
   nền kem #F8F7F6, chữ than #333234) + vàng kem của logo. Nền = tường ảnh model NOUS trôi chậm.
   NHẸ: chỉ animate transform/opacity (GPU tự ghép lớp), KHÔNG filter blur / backdrop-filter trên nền đang chuyển động,
   hiệu ứng nặng (viền xoay) chỉ chạy khi rê chuột. Không style nội tuyến (CSP style-src 'self'). */
@property --goc { syntax: "<angle>"; initial-value: 0deg; inherits: false; }

:root{
  --nen:#F8F5F1; --mat:rgba(255,252,249,.84); --mat-dac:#fff; --vien:rgba(51,50,52,.10);
  --chu:#58595B; --chu-dam:#2B2A2C; --chu-mo:#837E79;
  --hong:#DB9087; --hong-dam:#B8645B; --hong-nhat:#F4D9D3; --vang:#CFAE7A; --vang-dam:#A8834A; --kem:#F6E9D4;
  --loi:#B3261E; --loi-nen:#FDEBE9; --ok:#2F6B3A; --ok-nen:#E6F2E7;
  --phu-1:rgba(248,245,241,.94); --phu-2:rgba(248,245,241,.80); --phu-3:rgba(248,245,241,.62);
  --bong:0 1px 2px rgba(60,40,30,.06),0 14px 34px -14px rgba(120,70,55,.30);
  --bong-cao:0 2px 4px rgba(60,40,30,.08),0 30px 60px -18px rgba(150,80,65,.42);
  --mx:0; --my:0;
  color-scheme:light;
  font-family:"Be Vietnam Pro",ui-sans-serif,system-ui,"Segoe UI",Roboto,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --nen:#141213; --mat:rgba(32,28,29,.86); --mat-dac:#231F20; --vien:rgba(255,240,235,.10);
  --chu:#D9D3CF; --chu-dam:#FFF8F4; --chu-mo:#A39B95;
  --hong:#E3A097; --hong-dam:#DB9087; --hong-nhat:#4A2A26; --vang:#D9BC8C; --vang-dam:#E6CB9C; --kem:#3A2E22;
  --loi:#FF9A8F; --loi-nen:rgba(220,59,47,.16); --ok:#8FD19C; --ok-nen:rgba(60,160,80,.16);
  --phu-1:rgba(20,18,19,.93); --phu-2:rgba(20,18,19,.80); --phu-3:rgba(20,18,19,.62);
  --bong:0 1px 2px rgba(0,0,0,.3),0 14px 34px -14px rgba(0,0,0,.6);
  --bong-cao:0 2px 4px rgba(0,0,0,.35),0 34px 70px -20px rgba(219,144,135,.30);
  color-scheme:dark}}

*{box-sizing:border-box}
html{min-height:100%;background:var(--nen)}
body{margin:0;min-height:100vh;color:var(--chu);font:15px/1.55 inherit;font-family:inherit;background:transparent;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--hong-dam)}
::selection{background:var(--hong);color:#fff}

/* ---------- Nền: tường ảnh model nghiêng, các cột trôi chậm ngược chiều ---------- */
.nen{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;background:var(--nen)}
.tuong-nen{position:absolute;left:50%;top:50%;width:max(125vw,1300px);display:grid;grid-template-columns:repeat(7,minmax(0,1fr));
  gap:20px;transform:translate(-50%,-50%) rotate(-9deg);
  translate:calc(var(--mx) * -30px) calc(var(--my) * -24px);transition:translate 1.4s cubic-bezier(.2,.8,.2,1)}
.cot-nen{display:flex;flex-direction:column;gap:20px;animation:cuon-len 120s linear infinite;will-change:transform}
.cot-nen:nth-child(even){animation-name:cuon-xuong;animation-duration:140s}
.cot-nen:nth-child(3n){animation-duration:105s}
.cot-nen img{display:block;width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:24px;background:var(--kem)}
@keyframes cuon-len{from{transform:translateY(0)}to{transform:translateY(calc(-50% - 10px))}}
@keyframes cuon-xuong{from{transform:translateY(calc(-50% - 10px))}to{transform:translateY(0)}}
/* lớp phủ kem: giữa đặc hơn (chữ dễ đọc), mép trong hơn (thấy ảnh), thoảng hồng / vàng kem */
.phu-nen{position:absolute;inset:0;
  background:radial-gradient(ellipse 75% 65% at 38% 40%,var(--phu-1) 0,var(--phu-2) 55%,var(--phu-3) 100%),
             linear-gradient(135deg,rgba(219,144,135,.14),rgba(207,174,122,.12))}
body.trang-dn .phu-nen{
  background:radial-gradient(ellipse 34% 48% at 50% 50%,var(--phu-2) 0,rgba(248,245,241,.30) 70%,rgba(248,245,241,.12) 100%),
             linear-gradient(135deg,rgba(219,144,135,.18),rgba(207,174,122,.14))}
@media (prefers-color-scheme:dark){body.trang-dn .phu-nen{
  background:radial-gradient(ellipse 34% 48% at 50% 50%,var(--phu-2) 0,rgba(20,18,19,.42) 70%,rgba(20,18,19,.25) 100%)}}

/* ---------- Đầu trang ---------- */
header{position:relative;z-index:2;display:flex;align-items:center;gap:14px;padding:18px clamp(16px,4vw,40px)}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--chu-dam)}
.logo .chu-ky{font-weight:300;letter-spacing:.28em;font-size:22px;margin-right:-.28em}
.logo .gach{width:1px;height:22px;background:var(--vien)}
.logo .ten-web{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--hong-dam)}
header .cach{flex:1}
header .ten{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--chu-mo);
  padding:6px 12px;border-radius:999px;background:var(--mat);border:1px solid var(--vien)}
header .ten::before{content:"";width:8px;height:8px;border-radius:50%;background:#5CB176;box-shadow:0 0 0 3px rgba(92,177,118,.18)}
header > a:not(.logo){font-size:13px;font-weight:600;text-decoration:none;color:var(--chu-dam);padding:6px 12px;border-radius:999px;
  background:var(--mat)}
header form{margin:0}

main{position:relative;z-index:1;max-width:1120px;margin:0 auto;padding:12px clamp(16px,4vw,40px) 64px}
h1{font-size:24px;margin:0 0 18px;color:var(--chu-dam);letter-spacing:-.01em}
h2{font-size:15px;margin:30px 0 12px;color:var(--chu-dam);font-weight:600}
.phu{color:var(--chu-mo);font-size:13px}

/* ---------- Nút ---------- */
.nut{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:13px 16px;
  border-radius:12px;border:1px solid var(--vien);background:var(--mat-dac);color:var(--chu-dam);font:inherit;font-weight:600;
  font-size:15px;text-decoration:none;cursor:pointer;transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,border-color .25s}
.nut+.nut{margin-top:12px}
.nut:hover{transform:translateY(-2px);box-shadow:var(--bong);border-color:rgba(219,144,135,.55)}
.nut:active{transform:translateY(0) scale(.99)}
.nut.chinh{background:linear-gradient(135deg,var(--hong) 0%,var(--hong-dam) 100%);border-color:transparent;color:#fff;
  box-shadow:0 10px 24px -10px rgba(184,100,91,.65)}
.nut.nho{display:inline-flex;width:auto;padding:6px 12px;font-weight:500;font-size:13px;border-radius:999px}
.nut.nho+.nut.nho{margin-top:0}
.nut .ico{width:20px;height:20px;flex:none}

/* ---------- Hộp (đăng nhập, 2 lớp) ---------- */
.hop{position:relative;max-width:420px;margin:8vh auto 0;padding:34px 30px 30px;border-radius:24px;
  background:var(--mat);border:1px solid var(--vien);box-shadow:var(--bong-cao);animation:noi .8s cubic-bezier(.2,.8,.2,1) both}
body.trang-dn .hop{margin-top:12vh}
.hop.rong{max-width:640px}.hop.rong p{line-height:1.7}
.hop h1{text-align:center;font-size:22px;margin-bottom:6px}
.hop .mo-ta{text-align:center;color:var(--chu-mo);font-size:13.5px;margin:0 0 24px}
.hop .dau{display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:22px}
.hop .dau .chu-ky{font-weight:300;letter-spacing:.34em;font-size:42px;margin-right:-.34em;
  background:linear-gradient(100deg,var(--chu-dam) 20%,var(--hong) 45%,var(--vang) 55%,var(--chu-dam) 80%);
  background-size:300% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:anh-kim 6s ease-in-out infinite}
.hop .dau .ten-web{font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--hong-dam)}
@keyframes noi{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:none}}
@keyframes anh-kim{0%,100%{background-position:100% 0}50%{background-position:0 0}}

.bao{padding:11px 14px;border-radius:12px;margin:0 0 16px;font-size:14px}
.bao.loi{background:var(--loi-nen);color:var(--loi)}
.bao.ok{background:var(--ok-nen);color:var(--ok)}
label{display:block;margin:14px 0 6px;font-weight:600;font-size:13px;color:var(--chu-mo)}
input[type=text],input[type=email],select,textarea{width:100%;padding:11px 12px;border:1px solid var(--vien);border-radius:12px;
  background:var(--mat-dac);color:var(--chu-dam);font:inherit;transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--hong);box-shadow:0 0 0 4px rgba(219,144,135,.18)}
input.ma{font-size:26px;letter-spacing:.42em;text-align:center;font-weight:600;padding:14px 12px}
.tich{display:flex;align-items:center;gap:10px;font-weight:500;color:var(--chu);margin:14px 0}
.tich input{accent-color:var(--hong-dam);width:16px;height:16px}
.qr{display:block;width:210px;height:210px;margin:6px auto 4px;padding:10px;background:#fff;border-radius:16px;
  box-shadow:0 0 0 1px var(--vien),0 18px 40px -18px rgba(184,100,91,.5)}
.khoa{font-family:ui-monospace,Consolas,monospace;text-align:center;font-size:12.5px;color:var(--chu-mo);word-break:break-all;margin:8px 0 4px}

/* ---------- Màn chọn app: lời chào gọn ở góc trên, 10 app vừa một màn hình ---------- */
body.trang-chon main{max-width:1480px;padding-top:4px;padding-bottom:28px}
.chao{display:flex;align-items:flex-end;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;margin:4px 0 20px}
.chao .loi-chao{margin:0;font-size:13px;color:var(--chu-mo);font-weight:500;animation:hien .9s .05s both}
.chao h1{margin:0;font-size:clamp(24px,2.4vw,32px);line-height:1.15;font-weight:300;letter-spacing:-.02em;color:var(--chu-dam)}
.chao h1 span{display:inline-block;animation:chu-len .9s cubic-bezier(.2,.8,.2,1) both}
.chao h1 span:nth-child(2){animation-delay:.06s}.chao h1 span:nth-child(3){animation-delay:.12s}
.chao h1 span:nth-child(4){animation-delay:.18s}.chao h1 span:nth-child(5){animation-delay:.24s}
.chao h1 .goi{font-weight:500;padding-right:.06em;
  background:linear-gradient(100deg,var(--hong-dam) 0%,var(--hong) 25%,var(--vang) 50%,var(--hong) 75%,var(--hong-dam) 100%);
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:chu-len .9s cubic-bezier(.2,.8,.2,1) both,anh-kim 5s 1s ease-in-out infinite}
.chao .ngay{margin:0 0 4px;padding:6px 14px;border-radius:999px;background:var(--mat);border:1px solid var(--vien);
  color:var(--chu-mo);font-size:13px;animation:hien .9s .3s both}
.chao .ngay b{color:var(--hong-dam);font-weight:600}
@keyframes chu-len{from{opacity:0;transform:translateY(.45em) rotate(2deg)}to{opacity:1;transform:none}}
@keyframes hien{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.luoi{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;perspective:1200px}
.luoi.mot{grid-template-columns:minmax(0,420px)}

.o{--a:var(--hong);--a2:var(--vang);--rx:0deg;--ry:0deg;--x:50%;--y:50%;--ty:0px;--sc:1;
  position:relative;display:flex;flex-direction:column;min-height:clamp(160px,26vh,240px);padding:20px 20px 18px;border-radius:22px;
  text-decoration:none;color:var(--chu-dam);background:var(--mat);border:1px solid var(--vien);
  box-shadow:var(--bong);transform-style:preserve-3d;isolation:isolate;overflow:hidden;
  transform:translateY(var(--ty)) rotateX(var(--rx)) rotateY(var(--ry)) scale(var(--sc));
  transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .4s,border-color .4s;
  animation:the-len .8s cubic-bezier(.2,.8,.2,1) both}
.luoi.mot .o{min-height:240px;padding:30px 28px 26px}
.o:nth-child(1){animation-delay:.12s}.o:nth-child(2){animation-delay:.17s}.o:nth-child(3){animation-delay:.22s}
.o:nth-child(4){animation-delay:.27s}.o:nth-child(5){animation-delay:.32s}.o:nth-child(6){animation-delay:.37s}
.o:nth-child(7){animation-delay:.42s}.o:nth-child(8){animation-delay:.47s}.o:nth-child(9){animation-delay:.52s}
.o:nth-child(10){animation-delay:.57s}
@keyframes the-len{from{opacity:0;transform:translateY(30px) rotateX(12deg) scale(.95)}to{opacity:1;transform:none}}
.o.hover-dang{transition:transform .12s linear,box-shadow .4s,border-color .4s}
/* viền sáng xoay — chỉ chạy khi rê chuột (không tốn gì lúc đứng yên) */
.o::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:2px;z-index:-1;opacity:0;
  background:conic-gradient(from var(--goc),transparent 0 40%,var(--a) 62%,#fff 70%,var(--a2) 80%,transparent 96%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0);transition:opacity .4s}
/* vệt sáng theo con trỏ */
.o::after{content:"";position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .4s;
  background:radial-gradient(360px circle at var(--x) var(--y),color-mix(in srgb,var(--a) 26%,transparent),transparent 60%)}
.o:hover,.o:focus-visible{--ty:-6px;--sc:1.02;box-shadow:var(--bong-cao);border-color:transparent;outline:none}
.o:hover::before,.o:focus-visible::before{opacity:1;animation:xoay 3.2s linear infinite}
.o:hover::after{opacity:1}
@keyframes xoay{to{--goc:360deg}}
/* vệt bóng loáng quét qua thẻ khi rê chuột */
.o .sang{position:absolute;inset:0;z-index:2;pointer-events:none;border-radius:inherit;overflow:hidden}
.o .sang::before{content:"";position:absolute;top:-20%;bottom:-20%;left:0;width:45%;transform:translateX(-160%) skewX(-18deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent)}
.o:hover .sang::before{transition:transform .9s cubic-bezier(.2,.8,.2,1);transform:translateX(330%) skewX(-18deg)}

.o .bieu{position:relative;display:grid;place-items:center;width:76px;height:76px;border-radius:22px;margin-bottom:auto;
  color:#fff;background:linear-gradient(140deg,var(--a),var(--a2));
  box-shadow:0 12px 24px -10px color-mix(in srgb,var(--a) 75%,transparent),inset 0 1px 0 rgba(255,255,255,.35);
  transform:translateZ(40px);transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.o .bieu svg{width:38px;height:38px;stroke-width:1.6}
.o:hover .bieu{transform:translateZ(60px) translateY(-4px) rotate(-6deg) scale(1.06)}
.o b{display:block;margin-top:18px;padding-right:40px;font-size:17px;font-weight:600;line-height:1.25;letter-spacing:-.01em;
  transform:translateZ(30px)}
.luoi.mot .o b{font-size:24px}
.o .mo{display:block;margin-top:4px;padding-right:40px;font-size:12.5px;line-height:1.4;color:var(--chu-mo);transform:translateZ(20px)}
.o .di{position:absolute;right:16px;bottom:16px;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--vien);color:var(--chu-dam);background:var(--mat-dac);transform:translateZ(36px);
  transition:background .3s,color .3s,transform .5s cubic-bezier(.2,.8,.2,1),border-color .3s}
.o .di svg{width:15px;height:15px;transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.o:hover .di{background:var(--a);border-color:var(--a);color:#fff;transform:translateZ(50px) scale(1.08)}
.o:hover .di svg{transform:rotate(45deg)}
.o .so{position:absolute;right:14px;top:4px;font-size:58px;font-weight:700;line-height:1;letter-spacing:-.06em;
  color:transparent;-webkit-text-stroke:1px color-mix(in srgb,var(--a) 35%,transparent);opacity:.7;pointer-events:none;
  transform:translateZ(10px);transition:opacity .4s,transform .6s cubic-bezier(.2,.8,.2,1)}
.o:hover .so{opacity:1;transform:translateZ(10px) translateX(-6px)}

/* màu nhấn từng web — cùng họ hồng đất / vàng kem của NOUS */
.o.w-baocaobod{--a:#C9A46A;--a2:#E3C893}
.o.w-pkd{--a:#DB9087;--a2:#E9B8A5}
.o.w-khhh{--a:#B8645B;--a2:#DB9087}
.o.w-vtp{--a:#A9786B;--a2:#D8A98C}
.o.w-chungtu{--a:#8E7368;--a2:#C9A46A}
.o.w-pkt{--a:#C98A6B;--a2:#E2B48E}
.o.w-livestream{--a:#D1767B;--a2:#EAA5A0}
.o.w-chaohang{--a:#B89366;--a2:#DCC08F}
.o.w-planogram{--a:#9C8A7D;--a2:#C9B29A}
.o.w-hr{--a:#A87A86;--a2:#D6A9B0}

/* màn mở web: thẻ bung ra phủ màn hình rồi mới chuyển trang */
.man{position:fixed;z-index:50;border-radius:24px;display:grid;place-items:center;color:#fff;pointer-events:none;
  background:linear-gradient(140deg,var(--a,#DB9087),var(--a2,#CFAE7A));
  transition:left .55s cubic-bezier(.7,0,.2,1),top .55s cubic-bezier(.7,0,.2,1),width .55s cubic-bezier(.7,0,.2,1),
    height .55s cubic-bezier(.7,0,.2,1),border-radius .55s}
.man.day{left:0 !important;top:0 !important;width:100vw !important;height:100vh !important;border-radius:0}
.man span{font-size:clamp(26px,4vw,44px);font-weight:300;letter-spacing:-.02em;opacity:0;transform:translateY(12px);
  transition:opacity .35s .25s,transform .45s .25s cubic-bezier(.2,.8,.2,1)}
.man.day span{opacity:1;transform:none}
.man i{position:absolute;bottom:18vh;width:120px;height:2px;border-radius:2px;background:rgba(255,255,255,.35);overflow:hidden}
.man i::after{content:"";position:absolute;inset:0;width:40%;background:#fff;animation:chay 1s ease-in-out infinite}
@keyframes chay{from{transform:translateX(-100%)}to{transform:translateX(260%)}}

/* xin thêm quyền / chưa có quyền */
.xin{margin-top:44px;padding:24px;border-radius:20px;background:var(--mat);border:1px solid var(--vien);animation:hien .9s .6s both}
.xin summary{cursor:pointer;font-weight:600;color:var(--chu-dam);list-style:none;display:flex;align-items:center;gap:10px}
.xin summary::-webkit-details-marker{display:none}
.xin summary::before{content:"+";display:grid;place-items:center;width:24px;height:24px;border-radius:50%;
  background:var(--hong-nhat);color:var(--hong-dam);font-weight:700;transition:transform .3s}
.xin[open] summary::before{transform:rotate(45deg)}
.xin[open] summary{margin-bottom:14px}
.ds-web{display:flex;flex-wrap:wrap;gap:10px}
.chip-chon{position:relative;margin:0}
.chip-chon input{position:absolute;opacity:0;pointer-events:none}
.chip-chon span{display:inline-block;padding:9px 16px;border-radius:999px;border:1px solid var(--vien);background:var(--mat-dac);
  font-size:14px;font-weight:500;color:var(--chu);cursor:pointer;transition:all .25s}
.chip-chon input:checked+span{background:linear-gradient(135deg,var(--hong),var(--hong-dam));border-color:transparent;color:#fff;
  box-shadow:0 8px 18px -8px rgba(184,100,91,.6)}
.chip-chon input:disabled+span{opacity:.45;cursor:not-allowed}
.chip-chon input:focus-visible+span{box-shadow:0 0 0 4px rgba(219,144,135,.3)}
.trong{max-width:620px;margin:6vh auto 0;text-align:center;animation:noi .8s both}
.trong .vong{width:88px;height:88px;margin:0 auto 22px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--hong),var(--vang));box-shadow:0 20px 40px -16px rgba(184,100,91,.6);
  animation:tho 3.6s ease-in-out infinite}
.trong .vong svg{width:38px;height:38px}
.trong h1{font-size:clamp(28px,4vw,40px);font-weight:300;letter-spacing:-.02em}
.trong p{color:var(--chu-mo)}
.trong .xin{text-align:left}
@keyframes tho{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}

/* ---------- Bảng (quản trị) ---------- */
.cuon{overflow-x:auto;border-radius:16px}
table{width:100%;border-collapse:separate;border-spacing:0;background:var(--mat);border:1px solid var(--vien);border-radius:16px;overflow:hidden}
th,td{padding:10px 12px;border-bottom:1px solid var(--vien);text-align:left;vertical-align:top;font-size:14px}
tr:last-child td{border-bottom:0}
th{font-size:12px;font-weight:600;color:var(--chu-mo);text-transform:uppercase;letter-spacing:.06em}
td form{display:inline}
.chip{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;background:var(--hong-nhat);
  color:var(--chu-dam);font-size:12px;margin:2px 4px 2px 0}
.chip .nut.nho{padding:0 6px;border:0;background:transparent;font-size:14px}
tr.tat{opacity:.5}
.dong{display:flex;flex-wrap:wrap;gap:8px;align-items:end;margin-top:6px}
.dong>*{flex:1 1 160px}
.dong>.nut{flex:0 0 auto;width:auto}

@media (max-width:1280px){.luoi{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:1024px){.luoi{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:900px){
  .tuong-nen{grid-template-columns:repeat(4,minmax(0,1fr));width:max(170vw,900px)}
  .cot-nen:nth-child(n+5){display:none}
}
@media (max-width:640px){
  header{padding:14px 16px;gap:8px}header .ten{display:none}header > a:not(.logo),header .nut.nho{padding:6px 10px}
  .hop{margin-top:3vh;padding:26px 20px}body.trang-dn .hop{margin-top:6vh}.luoi{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .o{min-height:150px;padding:16px}.o b{font-size:15px;padding-right:0}.o .mo{padding-right:0}.o .so{font-size:44px}
  .o .di{display:none}.o .bieu{width:54px;height:54px;border-radius:16px}.o .bieu svg{width:28px;height:28px}
}
@media (max-width:420px){.logo .gach,.logo .ten-web{display:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .o{transform:none !important}
}