*{box-sizing:border-box}body{margin:0;font-family:Arial;background:#faf5fc;color:#27344a}body:before{content:"BƯỚC CHẠY SỐNG KHỎE 2026";position:fixed;z-index:-1;top:45%;left:-5%;font-size:70px;font-weight:900;color:#79248b08;transform:rotate(-10deg);white-space:nowrap}header{max-width:1000px;margin:18px auto;padding:38px;border-radius:28px;color:white;background:linear-gradient(120deg,#55207d,#922695,#df3e9a);box-shadow:0 18px 45px #63217b30}header h1{font-size:44px;margin:0}header h1 b{color:#ffd86a}header strong{display:inline-block;margin-top:8px;background:white;color:#71248e;padding:9px 14px;border-radius:99px}main{max-width:1000px;margin:auto}.stats,.lotus,.form{background:white;border:1px solid #eaddec;border-radius:19px;box-shadow:0 8px 22px #5b1c720d}.stats{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:8px;padding:12px}.stats div{text-align:center;padding:13px;background:#fbf6fc;border-radius:13px}.stats b{display:block;color:#75258e}.stats small{font-size:10px}.lotus{display:grid;grid-template-columns:65px 1fr;gap:14px;align-items:center;margin-top:12px;padding:16px}.lotus img,.follow img{width:58px;height:58px;border-radius:14px}.lotus>div>b{color:#76258e}.lotus p{font-size:11px;line-height:1.45}.form{margin-top:12px;padding:22px}.form h2,.form h3{color:#5d207a}.grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.grid label{font-size:11px;font-weight:800}.grid input,.grid select{display:block;width:100%;margin-top:6px;padding:12px;border:1px solid #ddd1e4;border-radius:11px}.choices{display:grid;grid-template-columns:1fr 1fr;gap:10px}.choices label{padding:14px;border:1px solid #dfd4e5;border-radius:12px}.check{display:block;margin:16px 0;font-size:11px}button{width:100%;border:0;border-radius:13px;padding:14px;background:linear-gradient(90deg,#68228b,#ca3c98);color:white;font-weight:900}#done{position:fixed;inset:0;z-index:20;overflow:auto;background:linear-gradient(#f4edf8,#fff);padding:8px}.box{max-width:820px;margin:auto;background:white;border:2px solid #8b2a9c;border-radius:20px;overflow:hidden}.top{display:grid;grid-template-columns:1fr 1fr;padding:16px 20px;color:white;background:linear-gradient(110deg,#57207f,#8b2792,#cf3b97);border-bottom:3px solid #f0bd43}.top>div:first-child b{display:block;font-size:30px;color:#ffd86b}.top>div:last-child{text-align:center}.top p{margin:4px;display:flex;justify-content:center;align-items:center;gap:7px;font-weight:900}.top img{width:32px;height:32px;border-radius:7px}.ok{margin:12px;padding:14px;display:grid;grid-template-columns:46px 1fr;gap:10px;align-items:center;background:#effcf5;border:1px solid #bce5cc;border-radius:13px}.ok i{width:43px;height:43px;border-radius:50%;display:grid;place-items:center;background:#1aad58;color:white;font-size:27px;font-style:normal}.ok h2{margin:0;color:#16774c}.ok p{font-size:10px}.meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 12px}.meta div{padding:11px;border:1px solid #e0d6e7;border-radius:12px;font-size:9px;font-weight:900;color:#6d2588}.meta b{display:block;margin-top:5px;font-size:17px;color:#52206f}.box>h3{text-align:center;color:#5d2179}.cards{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 12px}.cards section{border:1px solid #dce4ec;border-radius:13px;overflow:hidden}.cards h4{margin:0;padding:9px;background:#f5effa;color:#70268a}.cards p{display:grid;grid-template-columns:90px 1fr;gap:6px;margin:0;padding:7px 9px;border-top:1px solid #edf0f3;font-size:9px;color:#718090}.cards p b{color:#27344a;overflow-wrap:anywhere}.follow{display:flex;align-items:center;gap:10px;margin:10px 12px;padding:10px;background:#f7effb;border:1px solid #dfc5e9;border-radius:12px;color:#71258d}.follow img{width:44px;height:44px}.slogan{text-align:center;margin:12px;color:#79298e;font-style:italic;font-weight:800}.box>button{width:calc(100% - 24px);margin:0 12px 14px}@media(max-width:650px){header{margin:0;border-radius:0;padding:23px 17px}header h1{font-size:34px}.stats{grid-template-columns:1fr 1fr}.stats div:first-child{grid-column:1/-1}main{margin:9px 8px}.lotus{grid-template-columns:52px 1fr}.lotus img{width:49px;height:49px}.grid,.choices{grid-template-columns:1fr}.form{padding:15px}.box{border-radius:14px}.ok h2{font-size:16px}.meta b{font-size:13px}.cards{grid-template-columns:1fr 1fr}.cards p{grid-template-columns:65px 1fr;padding:6px;font-size:7.5px}.cards h4{font-size:9px}}.ok p strong{display:block;margin-top:5px;color:#315e4a;line-height:1.4}.support-note{text-align:center;margin:-6px 16px 14px;font-size:9px;color:#6e6175}.box>button{font-size:11px}
.officialBanner{max-width:1040px;margin:12px auto 0;padding:0 8px}
.officialBanner img{display:block;width:100%;height:auto;border-radius:22px;box-shadow:0 12px 30px rgba(88,27,115,.18)}
.dobSelects{display:grid;grid-template-columns:.8fr 1fr 1.1fr;gap:7px;margin-top:6px}
.dobSelects select{width:100%;min-width:0;min-height:48px;padding:9px 7px;border:1px solid #d8c9e2;border-radius:11px;background:#fff;font-size:15px;font-weight:700;color:#3f2752}
.dobEasy small{display:block;margin-top:5px;font-size:10px;color:#74677b;font-weight:500}
@media(max-width:650px){.officialBanner{margin:7px auto 0;padding:0 6px}.officialBanner img{border-radius:14px}.dobSelects{gap:5px}.dobSelects select{min-height:52px;font-size:14px;padding:8px 4px}}

/* V5 - banner gộp chính thức */
.officialBanner{
  max-width:1040px!important;
  margin:10px auto 8px!important;
  padding:0 8px!important;
}
.officialBanner img{
  display:block!important;
  width:100%!important;
  height:auto!important;
  object-fit:contain!important;
  border-radius:20px!important;
  box-shadow:0 12px 30px rgba(79,22,105,.18)!important;
}
@media(max-width:650px){
  .officialBanner{margin:5px auto 7px!important;padding:0 5px!important}
  .officialBanner img{border-radius:12px!important}
}