:root{--bg:#f0f2f5;--card:#fff;--text:#1c1e21;--sub:#65676b;--line:#dadde1;--pri:#1877f2;--hover:#f2f2f2}
@media (prefers-color-scheme:dark){:root{--bg:#18191a;--card:#242526;--text:#e4e6eb;--sub:#b0b3b8;--line:#3e4042;--hover:#3a3b3c}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.4 system-ui,sans-serif}a{color:var(--pri);text-decoration:none}
header{position:sticky;top:0;z-index:5;background:var(--card);border-bottom:1px solid var(--line);padding:10px 14px}
.hin{max-width:640px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}h1{font-size:18px;margin:0}h3{margin:0 0 10px}
.meta{font-size:12px;color:var(--sub)}.live{display:inline-block;width:8px;height:8px;border-radius:50%;background:#31a24c;margin-right:5px;animation:p 1.5s infinite}@keyframes p{50%{opacity:.3}}
main{max-width:640px;margin:12px auto;padding:0 10px}
.card{display:block;background:var(--card);border-radius:10px;box-shadow:0 1px 2px rgba(0,0,0,.15);padding:12px;margin-bottom:12px}
.pg{color:#fff;padding:22px 16px}.pg b{font-size:18px;display:block}.pg span{opacity:.9;font-size:13px}
.banner{color:#fff;padding:34px 14px}.bin{max-width:640px;margin:auto}.bt{font-size:26px;font-weight:800}.bs{opacity:.92;margin-top:6px}
.row{display:flex;gap:10px;align-items:center}.av{width:40px;height:40px;border-radius:50%;background:#7b2cbf;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}
textarea,input[type=text],input[type=password]{width:100%;border:0;background:var(--bg);color:var(--text);border-radius:12px;padding:10px 14px;font:inherit;resize:none;outline:none}
.btn{border:0;background:var(--pri);color:#fff;border-radius:6px;padding:8px 16px;font-weight:600;cursor:pointer}.btn.g{background:var(--bg);color:var(--text)}
.name{font-weight:600}.body{margin:10px 0;white-space:pre-wrap;word-wrap:break-word}
.stat{display:flex;justify-content:space-between;color:var(--sub);font-size:13px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.acts{display:flex;margin-top:4px}.acts button{flex:1;border:0;background:none;color:var(--sub);font:600 14px inherit;padding:8px;border-radius:6px;cursor:pointer}.acts button:hover{background:var(--hover)}.acts .on{color:var(--pri)}
.cm{display:flex;gap:8px;margin-top:8px}.cm .b{background:var(--bg);border-radius:16px;padding:6px 12px;flex:1}
#pill{position:fixed;left:50%;transform:translateX(-50%);top:70px;z-index:9;display:none;box-shadow:0 2px 8px rgba(0,0,0,.3);border-radius:20px;padding:9px 18px}
.new{animation:in .6s}@keyframes in{from{background:#d8e8ff;transform:translateY(-8px)}}
h1.bt{margin:0}p.bs{margin:6px 0 0}
.acts form{flex:1;display:flex;margin:0}.acts form button{width:100%}
.cf{align-items:center}.cf .nm{width:28%;flex:none}.cf input{border-radius:16px}.cf .btn{padding:7px 12px}
#pill{position:fixed;left:50%;transform:translateX(-50%);top:70px;z-index:9;display:none;box-shadow:0 2px 8px rgba(0,0,0,.3);border-radius:20px;padding:9px 18px}
.new{animation:in .6s}@keyframes in{from{background:#d8e8ff;transform:translateY(-8px)}}
.cmbox{display:none}.tg:checked~.cmbox{display:block}
.lb{flex:1;text-align:center;font-weight:600;font-size:14px;color:var(--sub);padding:8px;border-radius:6px;cursor:pointer}.lb:hover{background:var(--hover)}.tg:checked~.acts .lb{color:var(--pri)}
.notice{background:#fff8e1;color:#7a5b00;border:1px solid #f3a712}
@media (prefers-color-scheme:dark){.notice{background:#3b3320;color:#ffd978}}
label.fl{display:block;font-size:12px;color:var(--sub);margin:10px 0 3px}a.btn{display:inline-block;text-decoration:none}
input[type=color]{width:46px;height:30px;border:0;padding:0;background:none}
.anav a{margin-right:14px;font-weight:600;color:var(--sub)}.anav a.on{color:var(--pri)}
.pager{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:12px}.pager a,.pager b,.pager span{padding:6px 11px;border-radius:6px;background:var(--bg)}.pager b{background:var(--pri);color:#fff}
select{border:0;background:var(--bg);color:var(--text);border-radius:12px;padding:10px;font:inherit}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.linkbtn{background:none;border:0;color:var(--pri);cursor:pointer;font:inherit;padding:0}
input.hp{position:absolute!important;left:-9999px!important;top:auto;width:1px!important;height:1px!important;opacity:0;overflow:hidden;pointer-events:none}
.banner.has-img{padding:70px 14px;background-size:cover;background-position:center;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.pg{background-size:cover;background-position:center}
.thumb{width:48px;height:32px;object-fit:cover;border-radius:4px;vertical-align:middle;margin-right:8px}.bprev{max-width:100%;max-height:140px;border-radius:8px;margin:4px 0}

/* ===== Trang chủ & khung giao diện công khai ===== */
:root{--brand:#f5b700;--navy:#14213d}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
header.sh{padding:8px 0;z-index:8}.shin{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}.brand b{display:block;font-size:17px;line-height:1.1}.brand small{display:block;font-size:11px;color:var(--sub)}
.snav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.snav a{color:var(--text);font-weight:600;font-size:14px;padding:8px 10px;border-radius:8px}.snav a:hover,.snav a.on{background:var(--hover)}
.snav a.btn.hot{color:var(--navy);padding:8px 14px}
.btn.hot{background:var(--brand);color:var(--navy)}.btn.lg{padding:13px 22px;font-size:16px;border-radius:10px}.btn.ghost{background:transparent;border:2px solid rgba(255,255,255,.55);color:#fff}
.hero{background:radial-gradient(900px 380px at 88% -10%,rgba(245,183,0,.38),transparent 60%),linear-gradient(135deg,#0d1b3a,#14213d 55%,#1d2f5c);color:#fff;padding:76px 0 70px}
.hero h1{font-size:clamp(28px,5vw,46px);line-height:1.15;margin:8px 0 14px;max-width:760px}.hero .kicker{color:var(--brand);font-weight:700;margin:0}.hero .lead{font-size:18px;opacity:.92;max-width:620px;margin:0 0 26px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.trust{background:var(--card);border-bottom:1px solid var(--line)}.tgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;padding-top:22px;padding-bottom:22px}
.tgrid div{display:flex;flex-direction:column;gap:2px}.tgrid span{font-size:26px}.tgrid small{color:var(--sub)}
.sec{padding:54px 0}.sec.alt{background:var(--bg)}.sec h2{font-size:26px;margin:0 0 6px}.sec .sub{color:var(--sub);margin:0 0 22px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:22px}
.steps div{background:var(--card);border-radius:12px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.12)}.steps i{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--brand);color:var(--navy);align-items:center;justify-content:center;font-style:normal;font-weight:800;margin-bottom:10px}
.steps b{display:block;font-size:17px}.steps p{color:var(--sub);margin:6px 0 0}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}.pgrid .pg{margin:0;min-height:140px;display:flex;flex-direction:column;justify-content:flex-end;text-decoration:none;transition:transform .15s}.pgrid .pg:hover{transform:translateY(-3px)}
.band{background:var(--navy);color:#fff;text-align:center;padding:44px 0}.band h2{margin:0 0 16px}
.sf{background:#0d1428;color:#cfd6e6;padding-top:44px}.sfg{display:grid;grid-template-columns:2fr 1.4fr 1.2fr;gap:28px}
.sf h4{color:#fff;margin:0 0 12px}.sf ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}.sf a{color:#cfd6e6}.sf a:hover{color:var(--brand)}
.brand.light{color:#fff}.brand.light small{color:#9aa6c0}.sf p{color:#9aa6c0;max-width:360px}
.sfb{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:16px;padding-bottom:22px;font-size:13px;color:#9aa6c0}
.bstat{font-size:12px;margin-top:10px;opacity:.95}
@media (max-width:760px){.sfg{grid-template-columns:1fr}.snav a:not(.btn){display:none}.hero{padding:52px 0 48px}.brand small{display:none}}

/* ===== Nút liên hệ nổi: gọi hotline + Zalo ===== */
.fab{position:fixed;right:16px;bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:60;display:flex;flex-direction:column;gap:12px}
.fab a{position:relative;display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;color:#fff;text-decoration:none;box-shadow:0 4px 14px rgba(0,0,0,.35);transition:transform .15s}
.fab a:hover{transform:scale(1.08)}
.fab i{font-style:normal;font-size:24px;line-height:1}.fab-zalo i{font-size:13px;font-weight:800;letter-spacing:.2px}
.fab span{display:none}
.fab-call{background:#e53935}.fab-zalo{background:#0068ff}
.fab-call::before{content:"";position:absolute;inset:0;border-radius:50%;background:#e53935;opacity:.5;z-index:-1;animation:fabring 1.8s infinite}
@keyframes fabring{to{transform:scale(1.7);opacity:0}}
.fab a:hover span{display:block;position:absolute;right:66px;white-space:nowrap;background:#14213d;color:#fff;padding:7px 12px;border-radius:8px;font-size:13px;font-weight:600;line-height:1.25}
.fab a:hover span small{display:block;font-weight:400;opacity:.85;font-size:11px}
@media (prefers-reduced-motion:reduce){.fab-call::before{animation:none}.fab a{transition:none}}
@media (max-width:760px){
 .fab{left:0;right:0;bottom:0;flex-direction:row;gap:0;padding-bottom:env(safe-area-inset-bottom,0px);background:var(--card);box-shadow:0 -2px 10px rgba(0,0,0,.25)}
 .fab a{flex:1;width:auto;height:54px;border-radius:0;box-shadow:none;gap:8px}.fab a:hover{transform:none}.fab-call::before{display:none}
 .fab span,.fab a:hover span{display:block;position:static;background:none;padding:0;font-size:14px;font-weight:700;text-align:left}
 .fab span small,.fab a:hover span small{font-size:11px}
 .fab i{font-size:20px}.fab-zalo i{font-size:12px}
 .sfb{padding-bottom:78px}
}