@font-face{font-family:"TRT Fluke";font-weight:400;src:url(fonts/TrtFluke-Regular.otf)}
@font-face{font-family:"TRT Fluke";font-weight:500 900;src:url(fonts/TrtFluke-Semibold.otf)}
@font-face{font-family:"Space Grotesk";font-weight:400;src:url(fonts/SpaceGrotesk-Regular.otf)}
@font-face{font-family:"Space Grotesk";font-weight:500 900;src:url(fonts/SpaceGrotesk-Bold.otf)}
:root{--bg:#FFFDF7;--navy:#111827;--muted:#4B5563;--yellow:#FFCB05;--blue:#3B82F6;--border:#E5E7EB;--hf:"TRT Fluke",system-ui,sans-serif;--bf:"Space Grotesk",system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--navy);font:16px/1.55 var(--bf)}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
header{background:var(--bg);border-bottom:1px solid var(--border)}header .wrap{display:flex;align-items:center;gap:28px;height:64px}
header img{height:38px}nav{display:flex;gap:22px;font-size:14px;font-weight:600;color:var(--muted)}nav a{color:inherit;text-decoration:none}nav a.on{color:var(--blue)}
.sp{flex:1}.cart{border:1px solid var(--border);background:#fff;border-radius:99px;padding:8px 18px;font:700 14px var(--bf)}
h1,h2,h3{font-family:var(--hf);margin:0}h1{font-size:44px;line-height:1.15}h2{font-size:30px;margin-bottom:8px}h3{font-size:20px}
.hl{background:linear-gradient(transparent 60%,#FFE680 60%);color:var(--blue)}
.hero{padding:56px 0 24px;text-align:center}.hero p{color:var(--muted);max-width:640px;margin:14px auto 0;font-size:18px}
.crumb{font-size:13px;color:var(--muted);padding-top:18px}
section{padding:36px 0}.lead{color:var(--muted);margin:0 0 22px}
.ph{background:repeating-linear-gradient(45deg,#F3F4F6,#F3F4F6 12px,#EEF0F3 12px,#EEF0F3 24px);border:2px dashed #9CA3AF;border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:16px;color:#374151;min-height:200px}
.ph b{font-size:14px;background:#fff;border:1px solid #D1D5DB;border-radius:8px;padding:4px 10px;margin-bottom:8px}.ph span{font-size:13px;color:#6B7280;max-width:260px}
.ph::before{content:"🖼";font-size:28px;margin-bottom:6px}.ph.v::before{content:"▶"}
.g2,.g3,.g4{display:grid;gap:18px}.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px}.card p{color:var(--muted);margin:6px 0 0;font-size:14px}
.num{width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font:700 15px var(--bf);margin-bottom:10px}
.ico{width:42px;height:42px;border-radius:12px;background:#EFF6FF;display:grid;place-items:center;font-size:20px;margin-bottom:10px}
.btn{display:inline-block;background:var(--blue);color:#fff;border-radius:99px;padding:13px 28px;font:700 15px var(--bf);text-decoration:none;box-shadow:0 8px 20px rgba(59,130,246,.3)}.btn.y{background:var(--yellow);color:var(--navy);box-shadow:none}
.note{background:#FFFBEB;border:1px solid #FDE68A;border-radius:14px;padding:14px 18px;font-size:14px;color:#854D0E}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;font-size:15px}
th,td{padding:13px 18px;text-align:left;border-bottom:1px solid #F3F4F6}th{background:#F9FAFB;font-family:var(--hf);font-size:16px}td:first-child{font-weight:700}
.tbc{color:#B45309;background:#FEF3C7;border-radius:6px;padding:2px 8px;font-size:12px;font-weight:700}
.cta{background:var(--navy);color:#fff;border-radius:22px;padding:40px;text-align:center;margin:20px 0 48px}.cta p{color:#D1D5DB}

.cp{grid-column:1/-1;border-top:1px solid #1F2937;padding-top:16px;font-size:12px;color:#6B7280}
.zl{position:fixed;right:18px;bottom:18px;background:#0068FF;color:#fff;border-radius:99px;padding:12px 20px;font-weight:700;box-shadow:0 8px 24px rgba(0,104,255,.4);z-index:5}
.tag{background:#111827;color:#FFCB05;font:700 12px var(--bf);padding:6px 10px;text-align:center;letter-spacing:.04em}
.tl{display:flex;margin:10px 0}.tl div{flex:1;text-align:center;font-size:13px;position:relative;padding-top:30px;color:var(--muted)}.tl div::before{content:"";position:absolute;top:8px;left:50%;width:16px;height:16px;border-radius:50%;background:var(--blue);transform:translateX(-50%);z-index:1}.tl div::after{content:"";position:absolute;top:15px;left:50%;right:-50%;height:2px;background:#BFDBFE}.tl div:last-child::after{display:none}.tl b{display:block;color:var(--navy)}
.card:has(>.ico){display:grid;grid-template-columns:42px 1fr;column-gap:14px;align-items:center}
.card:has(>.ico) .ico{grid-row:span 2;margin:0}.card:has(>.ico) p{grid-column:2}
header{position:sticky;top:0;z-index:8}.mb{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;width:40px;height:36px;font-size:20px;line-height:1}
.hero{padding:44px 0 12px}section{padding:28px 0}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.steps li{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px 14px;text-align:center;position:relative}
.steps i{font:700 15px var(--bf);font-style:normal;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;margin:0 auto 10px}
.steps b{display:block;font-size:15px}.steps span{font-size:13px;color:var(--muted)}
.rw{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px 20px;display:flex;gap:14px;align-items:flex-start}
.rw h3{font-size:18px}.rw p{margin:4px 0 0;font-size:14px;color:var(--muted)}
.rw i{font-style:normal;flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font:700 15px var(--bf)}
.ck{background:#DCFCE7;color:#15803D}.nb{background:var(--navy);color:#fff}
@media(max-width:800px){
.steps{grid-template-columns:1fr 1fr;gap:10px}
.steps li{padding:14px 10px}.steps li:last-child{grid-column:1/-1}
.steps b{font-size:14px}
.qa{grid-template-columns:1fr 1fr!important;gap:10px}
.qa .rw{flex-direction:column;gap:8px;padding:14px 12px}.qa .rw h3{font-size:15px}.qa .rw p{font-size:13px}.qa .tbc{display:inline-block;margin-top:6px}
.rw{padding:14px}.rw h3{font-size:16px}.rw i{width:30px;height:30px}

.g2,.g3,.g4
.g4{grid-template-columns:1fr 1fr}
header .wrap{height:56px;gap:12px}header img{height:32px}
nav{display:none;position:absolute;top:56px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(17,24,39,.08);padding:6px 16px;font-size:16px}
body.mn nav{display:flex}nav a{padding:13px 4px;border-bottom:1px solid #F3F4F6}nav a:last-child{border:0}
.mb{display:block}
.gal{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0 16px;gap:12px;margin:0 -16px 18px!important;padding:0 16px 6px;scrollbar-width:none}
.gal::-webkit-scrollbar{display:none}
.gal>.ph{flex:0 0 62%;scroll-snap-align:start;min-height:120px!important;padding:10px}
.gal .ph span{display:none}.gal .ph::before{font-size:22px}
.cart{padding:6px 12px;font-size:13px}
h1{font-size:30px}h2{font-size:23px}h3{font-size:17px}.hero p{font-size:15px}.hero{padding:28px 0 8px}
section{padding:22px 0}.wrap{padding:0 16px}.card{padding:16px}
.ph{min-height:150px!important}
table{font-size:13px}th,td{padding:10px 10px}th{font-size:13px}td:first-child{white-space:nowrap}
.k2{grid-template-columns:1fr 1fr!important;gap:10px}
.k2 .card{display:block!important;padding:12px}.k2 .card .ico{width:34px;height:34px;font-size:16px;margin-bottom:8px}
.k2 .card h3{font-size:14px;white-space:nowrap}.k2 .card p{font-size:12px;line-height:1.5;margin-top:4px}
.k2 .card h3[style]{font-size:12px;white-space:nowrap;letter-spacing:-.2px}
.tl{display:grid;grid-template-columns:1fr 1fr;gap:12px 8px;margin:0}
.tl div{font-size:12px;padding-top:28px}.tl div::after{display:none}.tl b{font-size:13px}
section h2{font-size:20px}table{font-size:12px}th{font-size:12px}.tbc{font-size:11px;padding:2px 6px}.note{font-size:12px;padding:12px 14px}
.cta{padding:26px 18px;margin:12px 0 28px}

.zl{right:12px;bottom:12px;padding:10px 14px;font-size:13px}
}

.fi::before{display:none!important}.fi{min-height:44px!important;font-size:14px;color:#6B7280}
.soc{display:flex;justify-content:center;gap:12px;margin:12px 0 6px}.soc i{font:700 14px var(--bf);font-style:normal;width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center}
@media(max-width:800px){.card:has(>.ico){padding:12px 14px;align-items:center}.card:has(>.ico) .ico{grid-row:span 2;width:34px;height:34px;font-size:16px}.card:has(>.ico) h3{font-size:15px}.card:has(>.ico) p{margin:2px 0 0;font-size:13px}.fi{min-height:40px!important;padding:6px 12px!important}}

@media(max-width:800px){.ct{grid-template-columns:repeat(3,1fr)!important;gap:8px}.ct .card{display:block!important;text-align:center;padding:12px 4px!important}.ct .ico{width:34px;height:34px;margin:0 auto 6px!important;font-size:16px}.ct h3{font-size:13px!important}.ct p{font-size:11px!important;line-height:1.4;margin-top:4px!important}}

body{padding-bottom:76px}
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:9;background:rgba(255,253,247,.96);border-top:1px solid var(--border);padding:10px 16px;box-shadow:0 -6px 20px rgba(17,24,39,.08)}
.sticky .btn{display:block;max-width:480px;margin:0 auto;text-align:center;border-radius:12px;padding:14px;font-size:16px;letter-spacing:.02em}
.zl{bottom:90px!important}

/* footer chung */
footer{background:var(--navy);color:#D1D5DB;padding:56px 0 24px;font-size:14px;text-align:left}
footer a{color:var(--yellow)}.ft-logo{display:inline-block;margin:0 0 12px}.ft-logo img{height:46px;width:auto;display:block}
.ft{display:grid;grid-template-columns:1.2fr .8fr 1fr 1fr;gap:36px}.ft-menu{list-style:none;margin:0;padding:0;display:grid;gap:10px}.ft-menu a{text-decoration:none}.ft-menu a:hover{text-decoration:underline}
.ft-brand b{display:block;font:700 20px var(--font-head);color:#fff;margin-bottom:8px}
.ft-brand p{margin:0 0 18px;color:#9CA3AF}
.ft-info{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.ft-info li{display:flex;gap:10px;align-items:flex-start}.ft-info i{font-style:normal;color:var(--yellow)}
.ft-pol h4{margin:0 0 16px;font:700 15px var(--font-head);color:#fff}
.ft-grid{display:grid;grid-template-columns:1fr;gap:20px}
.ft-grid div{border-left:1px solid rgba(255,255,255,.2);padding-left:12px}
.ft-grid b{display:block;color:#fff;font-size:13px;margin-bottom:2px}
.ft-grid span{font-size:13px;line-height:1.5}.ft-grid em{font-style:normal;font-weight:700;color:var(--yellow)}
.ft-copy{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#9CA3AF}
@media(max-width:1000px){.ft{grid-template-columns:1fr 1fr}}@media(max-width:800px){.ft{grid-template-columns:1fr;gap:32px}.ft-grid{grid-template-columns:1fr}}
footer{font-family:var(--bf)}footer .wrap{display:block}.ft-logo img{margin:0}
/* chân trang luôn nằm đáy khi nội dung ngắn */
body{min-height:100vh;display:flex;flex-direction:column;padding-bottom:0}
body>.wrap{width:100%}
footer{margin-top:auto;padding-bottom:100px}

/* desktop: nút CTA nằm trên chân trang, nhấp nháy như bản mobile */
.sticky .btn{animation:ctaBlink 1.8s ease-in-out infinite}
@keyframes ctaBlink{0%{transform:scale(1);box-shadow:0 0 0 0 rgba(59,130,246,.55)}25%{transform:scale(1.04);box-shadow:0 0 0 12px rgba(59,130,246,0)}45%,100%{transform:scale(1);box-shadow:0 6px 20px rgba(59,130,246,.28)}}
@media(prefers-reduced-motion:reduce){.sticky .btn{animation:none}}
@media(min-width:801px){.sticky{position:static;order:1;margin-top:auto;background:none;border:0;box-shadow:none;padding:40px 16px}footer{order:2;margin-top:0;padding-bottom:24px}.zl{bottom:18px!important}}