:root{--ink:#1E2A28;--soft:#5B6A65;--line:#E7E3DA;--teal:#2F6F5E;--teal-d:#20544A;--teal-deep:#0E362C;--teal-panel:#154438;--bg:#F6F4EC;--red:#B8433B;--clay:#B8613F;--gold:#D9A441;--cream:#F6F4EC;
  --ql-blue-deep:#0B2F6B;--ql-blue:#155FE0;--ql-blue-2:#2E7CF6;--ql-blue-light:#EAF1FE;--ql-orange:#FF9A2E;--ql-orange-d:#E8830F;--ql-green:#1FAE6E}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 -apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--ql-blue)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(11,47,107,.02)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:var(--ink);text-decoration:none}
.brand span{color:var(--ql-blue)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:var(--ql-blue-light);color:var(--ql-blue);overflow:hidden;flex:none}
.brand-logo-img{width:100%;height:100%;object-fit:contain}
.nav{display:flex;align-items:center}
.nav a{margin-left:22px;text-decoration:none;color:var(--ink);font-weight:600;font-size:14.5px}
.nav a:hover{color:var(--ql-blue)}
.nav-cta{margin-left:22px!important;padding:9px 20px!important;border-radius:999px!important}
.nav-toggle{display:none;background:none;border:none;padding:6px;cursor:pointer}
.nav-toggle span,.nav-toggle span:before,.nav-toggle span:after{content:"";display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:transform .15s ease}
.nav-toggle span:before{position:absolute;top:-7px}
.nav-toggle span:after{position:absolute;top:7px}
.qlnt-btn{display:inline-block;background:var(--ql-blue);color:#fff!important;border:1px solid var(--ql-blue);padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600;cursor:pointer;font-size:15px}
.qlnt-btn:hover{background:var(--ql-blue-deep);border-color:var(--ql-blue-deep)}
.qlnt-btn-ghost{background:#fff;color:var(--ql-blue)!important}
.qlnt-btn-ghost:hover{background:var(--ql-blue-light)}
@media (max-width:760px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:6px 20px 16px;max-height:0;overflow:hidden;transition:max-height .2s ease}
  .nav.is-open{max-height:260px;padding:10px 20px 18px}
  .nav a{margin-left:0;padding:10px 0;width:100%}
  .nav-cta{margin-left:0!important;margin-top:8px!important;display:inline-block;width:auto!important}
}
.hero{padding:72px 0 56px;text-align:center}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.2;margin:0 0 14px}
.hero p{font-size:18px;color:var(--soft);max-width:680px;margin:0 auto 28px}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.page{padding:40px 0 64px}
.page h1{margin-top:0}
.site-footer{border-top:1px solid var(--line);background:#fff;padding:22px 0;color:var(--soft);font-size:14px;text-align:center}
.qlnt-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:18px;max-width:640px}
.qlnt-box h3{margin-top:0}
.qlnt-key{font:700 24px/1.3 ui-monospace,Consolas,monospace;letter-spacing:1px;background:#EAF4EF;border:1px dashed #AFD2BE;border-radius:8px;padding:12px 14px;margin:0 0 10px;word-break:break-all}
.qlnt-dl{display:grid;grid-template-columns:150px 1fr;gap:4px 12px;margin:16px 0}
.qlnt-dl dt{color:var(--soft)}.qlnt-dl dd{margin:0;font-weight:600}
.qlnt-warn{background:#FFF3CD;border:1px solid #F0DC9A;border-radius:8px;padding:10px 12px;color:#7A5B00}
.qlnt-notice{background:#EAF4EF;border:1px solid #CFE7DC;border-radius:8px;padding:10px 12px;margin-bottom:14px;max-width:640px}
.qlnt-dev{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line)}

/* Ví xu / Nạp tiền / Gói thuê */
.qlnt-btn-sm{padding:7px 12px;font-size:13px;width:100%;text-align:center}
.qlnt-box-wide{max-width:920px}

/* --- Gói thuê: thẻ dạng bảng giá (badge, giá lớn, checklist, nút CTA) --- */
.qlnt-cycles{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-top:14px}
.qlnt-plan-card{position:relative;display:flex;flex-direction:column;text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:22px 20px 20px;transition:border-color .15s,box-shadow .15s}
.qlnt-plan-card.is-featured{border-color:var(--gold);box-shadow:0 6px 20px rgba(217,164,65,.16)}
.qlnt-plan-badge{position:absolute;top:14px;right:14px;background:var(--gold);color:var(--teal-deep);font-size:10.5px;font-weight:800;letter-spacing:.4px;text-transform:uppercase;padding:4px 10px;border-radius:20px}
.qlnt-plan-save{position:absolute;top:14px;left:14px;background:var(--ql-green,#1FAE6E);color:#fff;font-size:10.5px;font-weight:800;padding:4px 10px;border-radius:20px}
.qc-label{font-weight:700;font-size:14px;color:var(--soft);margin-bottom:8px}
.qc-cost-old{font-size:13px;color:var(--soft);text-decoration:line-through;margin-bottom:1px}
.qc-cost{font-size:27px;font-weight:800;color:var(--ink);line-height:1.1}
.qc-cost span{font-size:13px;font-weight:600;color:var(--soft);margin-left:4px}
.qc-vnd{font-size:13px;color:var(--soft);margin:3px 0 14px}
.qc-save-vnd{color:var(--ql-green,#1FAE6E);font-weight:700}
.qlnt-plan-feats{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:8px;font-size:13px}
.qlnt-plan-feats li{display:flex;gap:8px;align-items:flex-start;color:var(--ink)}
.qlnt-plan-feats li:before{content:"✓";flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:#EAF4EF;color:var(--teal);font-size:10.5px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:1px}
.qlnt-plan-cta{margin-top:auto}
.qlnt-plan-cta .qlnt-btn,.qlnt-plan-cta .qlnt-btn-ghost{width:100%;text-align:center;padding:11px 14px}

/* --- Nạp tiền: mệnh giá dạng thẻ chọn nhanh --- */
.qlnt-amounts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin:12px 0}
.qlnt-amt{position:relative;display:block;border:1.5px solid var(--line);border-radius:12px;padding:14px 10px;cursor:pointer;text-align:center;background:#fff;transition:border-color .15s,box-shadow .15s,background .15s}
.qlnt-amt input{position:absolute;opacity:0;pointer-events:none}
.qlnt-amt .qa-vnd{font-size:17px;font-weight:800;color:var(--ink);display:block}
.qlnt-amt .qa-xu{font-size:11.5px;color:var(--soft);display:block;margin-top:3px}
.qlnt-amt.is-selected{border-color:var(--gold);box-shadow:0 0 0 2px rgba(217,164,65,.22);background:#FFFBF2}
.qlnt-amt-badge{position:absolute;top:-9px;right:8px;background:var(--gold);color:var(--teal-deep);font-size:9.5px;font-weight:800;letter-spacing:.3px;text-transform:uppercase;padding:2px 8px;border-radius:20px}
.qlnt-amount-input{margin-left:8px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;width:160px}
.qlnt-topup-form label{display:block;margin:10px 0}
.qlnt-qr-box{display:flex;gap:18px;flex-wrap:wrap;align-items:flex-start;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.qlnt-qr-img{width:220px;height:220px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff}
.qlnt-qr-info{flex:1;min-width:220px}
.qlnt-qr-info p{margin-top:0;font-size:13px;color:var(--soft)}
.qlnt-hist{width:100%;border-collapse:collapse;font-size:13.5px}
.qlnt-hist th,.qlnt-hist td{text-align:left;padding:7px 6px;border-bottom:1px solid var(--line)}
@media(max-width:560px){.qlnt-qr-box{flex-direction:column;align-items:center}.qlnt-qr-info{text-align:center}}
@media(max-width:560px){.qlnt-dl{grid-template-columns:1fr}.nav a{margin-left:12px}}

/* ============================= Trang chủ (Landing) ============================= */
h1,h2,h3{font-weight:800;letter-spacing:-.01em}
.ql-landing h2{font-size:clamp(24px,3.4vw,32px);margin:0 0 8px;line-height:1.25;color:var(--ql-blue-deep)}
.ql-section-sub{color:var(--soft);font-size:16px;max-width:640px;margin:0 0 32px}
.ql-center{margin-left:auto;margin-right:auto;text-align:center}
.ql-btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease,box-shadow .15s ease}
.ql-btn:hover{transform:translateY(-1px)}
.ql-btn-primary{background:var(--ql-orange);color:#fff!important;border-color:var(--ql-orange);box-shadow:0 10px 22px rgba(255,154,46,.32)}
.ql-btn-primary:hover{background:var(--ql-orange-d)}
.ql-btn-outline{background:rgba(255,255,255,.08);color:#fff!important;border-color:rgba(255,255,255,.55)}
.ql-btn-outline:hover{background:rgba(255,255,255,.18)}
.ql-btn-outline-dark{background:#fff;color:var(--ql-blue-deep)!important;border-color:#fff}
.ql-btn-outline-dark:hover{background:var(--ql-blue-light)}

/* 1. Hero */
.ql-hero{background:linear-gradient(150deg,var(--ql-blue-deep) 0%,var(--ql-blue) 62%,var(--ql-blue-2) 100%);color:#F1F5FF;padding:64px 0 84px;position:relative;overflow:hidden}
.ql-hero-blob{position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none}
.ql-hero-blob-1{width:420px;height:420px;right:-140px;top:-160px;background:radial-gradient(circle,rgba(255,255,255,.14),rgba(255,255,255,0) 70%)}
.ql-hero-blob-2{width:320px;height:320px;left:-120px;bottom:-160px;background:radial-gradient(circle,rgba(255,154,46,.22),rgba(255,154,46,0) 70%)}
.ql-hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;position:relative;z-index:1}
.ql-badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700;margin-bottom:18px;color:#fff}
.ql-hero h1{font-size:clamp(30px,4.6vw,46px);line-height:1.22;margin:0 0 16px;color:#fff}
.ql-hero h1 .ql-hl{color:var(--ql-orange)}
.ql-hero-sub{font-size:17px;line-height:1.6;color:#DCE6FB;max-width:480px;margin:0 0 30px}
.ql-hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.ql-hero-art svg{width:100%;height:auto;max-width:400px;display:block;margin:0 auto}

/* Thẻ QR tải nhanh nổi trên banner */
.ql-qr-card{display:flex;align-items:center;gap:16px;background:#fff;border-radius:16px;padding:16px 18px;margin-top:30px;max-width:420px;box-shadow:0 16px 40px rgba(11,47,107,.28)}
.ql-qr-img{flex:none;border-radius:8px;background:#fff}
.ql-qr-info{display:flex;flex-direction:column;gap:4px}
.ql-qr-info strong{color:var(--ql-blue-deep);font-size:14.5px}
.ql-qr-info span{color:var(--soft);font-size:12.5px;line-height:1.4}
.ql-qr-badges{display:flex;gap:8px;margin-top:6px;flex-wrap:wrap}
.ql-store-badge{display:inline-flex;align-items:center;gap:6px;background:var(--ql-blue-deep);color:#fff;font-size:12px;font-weight:700;padding:6px 11px;border-radius:8px}

/* Dải "được tin dùng" mỏng ngay dưới banner */
.ql-logos{background:#fff;border-bottom:1px solid var(--line);padding:16px 0}
.ql-logos .wrap{text-align:center}
.ql-logos span{color:var(--soft);font-size:13.5px;font-weight:600;letter-spacing:.3px;text-transform:uppercase}

/* 2. Tính năng — carousel "spotlight" một tính năng lớn + danh sách rút gọn bên dưới */
.ql-features{padding:68px 0 20px;background:var(--bg)}
.ql-features h2{text-align:center;margin-bottom:8px}

.ql-spot{display:flex;align-items:stretch;gap:14px;max-width:880px;margin:34px auto 18px}
.ql-spot-arrow{flex:none;align-self:center;width:44px;height:44px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:var(--ql-blue-deep);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,border-color .15s}
.ql-spot-arrow:hover{background:var(--ql-blue-light);border-color:var(--ql-blue-2)}
.ql-spot-track{flex:1;position:relative;min-height:230px;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}
.ql-spot-slide{position:absolute;inset:0;display:grid;grid-template-columns:220px 1fr;align-items:center;gap:0;opacity:0;visibility:hidden;transition:opacity .35s ease}
.ql-spot-slide.is-active{opacity:1;visibility:visible;position:relative}
.ql-spot-visual{height:100%;min-height:230px;background:linear-gradient(155deg,var(--ql-blue-deep),var(--ql-blue-2));display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#fff}
.ql-spot-num{font-size:13px;font-weight:800;background:rgba(255,255,255,.18);border-radius:999px;padding:4px 12px}
.ql-spot-emoji{font-size:44px;line-height:1}
.ql-spot-body{padding:30px 34px}
.ql-spot-tag{display:inline-block;color:var(--ql-blue);font-weight:700;font-size:12.5px;text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px}
.ql-spot-body h3{margin:0 0 10px;font-size:21px;color:var(--ql-blue-deep)}
.ql-spot-body p{margin:0;color:var(--soft);font-size:15px;line-height:1.6}
.ql-spot-dots{display:flex;justify-content:center;gap:8px;margin-bottom:44px}
.ql-spot-dot{width:8px;height:8px;border-radius:50%;border:none;background:var(--line);cursor:pointer;padding:0}
.ql-spot-dot.is-active{background:var(--ql-blue);width:22px;border-radius:5px;transition:width .2s ease}

.ql-feature-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column}
.ql-feature-row{display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
.ql-feature-row:last-child{border-bottom:1px solid var(--line)}
.ql-feature-icon{flex:none;width:52px;height:52px;border-radius:50%;background:var(--ql-blue-light);display:flex;align-items:center;justify-content:center;font-size:22px}
.ql-feature-body h3{margin:2px 0 5px;font-size:17px;font-weight:700}
.ql-feature-body p{margin:0;color:var(--soft);font-size:15px;line-height:1.55}

/* 3. Bảng giá */
.ql-pricing{padding:68px 0;background:#fff}
.ql-pricing h2{text-align:center}
.ql-pricing .ql-section-sub{margin:0 auto 40px;text-align:center}
.ql-cycles{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:56px}
.ql-cycle-card,a.ql-cycle-card,a.ql-cycle-card:link,a.ql-cycle-card:visited,a.ql-cycle-card:hover,a.ql-cycle-card:active,a.ql-cycle-card:focus{position:relative;display:block;background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:24px 18px;text-align:center;text-decoration:none!important;color:var(--ink)!important;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.ql-cycle-card:hover{transform:translateY(-3px);border-color:var(--ql-blue-2);box-shadow:0 14px 30px rgba(21,95,224,.16)}
.ql-cycle-card.is-popular{border-color:var(--ql-blue);box-shadow:0 8px 24px rgba(21,95,224,.14)}
.ql-cycle-tag{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--ql-orange);color:#fff;font-size:11.5px;font-weight:700;padding:3px 12px;border-radius:999px;white-space:nowrap}
.ql-cycle-label{font-weight:700;font-size:16px;margin-top:4px;text-decoration:none}
.ql-cycle-price{font-size:24px;font-weight:800;color:var(--ql-blue)!important;margin:8px 0 4px;text-decoration:none}
.ql-cycle-xu{font-size:12.5px;color:var(--soft);text-decoration:none}
.ql-cycle-cta{display:block;margin-top:14px;font-size:13px;font-weight:700;color:var(--ql-blue)!important;text-decoration:none!important}
.ql-cycle-save{position:absolute;top:14px;right:14px;background:var(--ql-green);color:#fff;font-size:11.5px;font-weight:800;padding:3px 9px;border-radius:999px}
.ql-cycle-price-old{font-size:13.5px;color:var(--soft);text-decoration:line-through;margin-top:2px}
.ql-cycle-note{text-align:center;color:var(--soft);font-size:13.5px;margin:18px 0 0}
.ql-pricing-guide{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;background:var(--ql-blue-light);border:1px solid var(--line);border-radius:20px;padding:36px}
.ql-pricing-guide-text h3{margin:0 0 18px;font-size:19px;color:var(--ql-blue-deep)}
.ql-pricing-guide-img svg,.ql-pricing-guide-img img{width:100%;height:auto;display:block;max-width:300px;margin:0 auto}
.ql-link-cta{display:inline-block;margin-top:6px;color:var(--ql-blue);font-weight:700;text-decoration:none;font-size:14.5px}
.ql-link-cta:hover{text-decoration:underline}

.ql-steps{list-style:none;margin:0;padding:0}
.ql-steps li{display:flex;gap:14px;padding:9px 0}
.ql-steps li p{margin:0;font-size:15px;line-height:1.5}
.ql-steps .ql-step-num{flex:none;width:26px;height:26px;border-radius:50%;background:var(--ql-blue);color:#fff;font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}
.ql-steps:not(.ql-steps-numbered) li .ql-step-num{width:8px;height:8px;background:var(--ql-orange);margin-top:8px}

/* 4. Đồng bộ Windows–Web */
.ql-sync{padding:20px 0 68px;background:#fff}
.ql-sync h2{text-align:center}
.ql-sync .ql-section-sub{margin:0 auto 40px;text-align:center}
.ql-sync-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:36px}
.ql-sync-img svg,.ql-sync-img img{width:100%;height:auto;display:block;max-width:320px;margin:0 auto}

/* 5. Đánh giá khách hàng */
.ql-testimonials{padding:64px 0 72px;background:var(--bg)}
.ql-testimonials h2{text-align:center;margin-bottom:36px}
.ql-testi-row{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 4px 10px;-webkit-overflow-scrolling:touch}
.ql-testi-card{scroll-snap-align:start;flex:0 0 280px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}
.ql-stars{color:var(--ql-orange);font-size:16px;letter-spacing:2px;margin-bottom:10px}
.ql-testi-quote{font-size:15px;line-height:1.6;color:var(--ink);margin:0 0 18px;min-height:76px}
.ql-testi-who{display:flex;align-items:center;gap:12px}
.ql-avatar{flex:none;width:38px;height:38px;border-radius:50%;background:var(--ql-blue-deep);color:#EAF1FE;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:16px}
.ql-testi-who strong{display:block;font-size:14.5px}
.ql-testi-role{font-size:12.5px;color:var(--soft)}

/* 6. CTA cuối trang */
.ql-final-cta{background:linear-gradient(150deg,var(--ql-blue-deep),var(--ql-blue));padding:52px 0}
.ql-final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ql-final-cta h2{color:#fff;margin:0 0 6px;font-size:clamp(20px,2.6vw,26px)}
.ql-final-cta p{color:#DCE6FB;margin:0}

/* Thanh CTA nổi kiểu ứng dụng trên di động */
.ql-mobile-cta{display:none}

@media (max-width:860px){
  .ql-hero-grid{grid-template-columns:1fr;text-align:center}
  .ql-hero-text{order:2}
  .ql-hero-art{order:1;margin-bottom:8px}
  .ql-hero-sub{margin-left:auto;margin-right:auto}
  .ql-hero-cta{justify-content:center}
  .ql-qr-card{margin-left:auto;margin-right:auto;text-align:left}
  .ql-pricing-guide,.ql-sync-grid{grid-template-columns:1fr;padding:26px}
  .ql-pricing-guide-img{order:-1}
  .ql-spot-slide{grid-template-columns:1fr}
  .ql-spot-visual{min-height:120px}
  .ql-final-cta-inner{text-align:center;justify-content:center}
}
@media (max-width:640px){
  .ql-hero{padding:40px 0 92px}
  .ql-features,.ql-pricing,.ql-sync,.ql-testimonials{padding-left:0;padding-right:0}
  .ql-feature-row{padding:18px 0}
  .ql-spot{gap:8px}
  .ql-spot-arrow{width:36px;height:36px}
  .ql-spot-body{padding:22px}
  main.ql-landing{padding-bottom:76px}
  .ql-mobile-cta{
    display:flex;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:40;
    background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
    border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));
  }
  .ql-mobile-cta .ql-btn{flex:1;justify-content:center;padding:12px 10px;font-size:14px}
  .ql-mobile-cta .ql-btn-outline{background:var(--ql-blue);color:#fff!important;border-color:var(--ql-blue)}
  .ql-mobile-cta .ql-btn-outline:hover{background:var(--ql-blue-deep)}
}

/* ============================= Footer nhiều cột ============================= */
.site-footer{background:#fff;border-top:1px solid var(--line);color:var(--soft);font-size:14px}
.sf-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;padding:52px 20px 40px}
.sf-col h4{margin:0 0 16px;color:var(--ink);font-size:14.5px;font-weight:800}
.sf-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.sf-col ul a{color:var(--soft);text-decoration:none;font-size:14px}
.sf-col ul a:hover{color:var(--ql-blue)}
.sf-tagline{margin:10px 0 18px;font-size:13.5px;line-height:1.55;max-width:280px}
.sf-download{display:flex;gap:10px;flex-wrap:wrap}
.sf-badge{display:inline-flex;align-items:center;gap:8px;background:var(--ql-blue-deep);color:#fff!important;text-decoration:none;padding:8px 12px;border-radius:10px;font-size:11.5px;line-height:1.25}
.sf-badge:hover{background:var(--ql-blue)}
.sf-badge strong{font-size:13px}
.sf-contact{text-align:center}
.sf-contact-list{gap:12px!important;align-items:center}
.sf-contact-list li{display:flex;align-items:center;justify-content:center;gap:9px;font-size:13.5px;text-align:center}
.sf-contact-list svg{flex:none;color:var(--ql-blue)}
.sf-contact-list a{color:var(--soft);text-decoration:none}
.sf-contact-list a:hover{color:var(--ql-blue)}
.sf-social{display:flex;gap:10px;margin-top:16px;justify-content:center}
.sf-social a{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--ql-blue-light);color:var(--ql-blue-deep);transition:background .15s,color .15s,transform .15s}
.sf-social a:hover{transform:translateY(-2px)}
/* Mỗi mạng xã hội đổi sang đúng màu thương hiệu khi rê chuột — dễ nhận ra icon nào là gì hơn là để cùng một màu xanh */
.sf-social-fb:hover{background:#1877F2;color:#fff}
.sf-social-zalo:hover{background:#0068FF;color:#fff}
.sf-social-yt:hover{background:#FF0000;color:#fff}
.sf-social-yt .yt-play{fill:#fff}
.sf-social-yt:hover .yt-play{fill:#FF0000}
.sf-bottom{border-top:1px solid var(--line);padding:16px 0;text-align:center;font-size:12.5px;color:var(--soft)}
@media (max-width:860px){
  .sf-grid{grid-template-columns:1fr 1fr;padding:40px 20px 28px}
}
@media (max-width:560px){
  .sf-grid{grid-template-columns:1fr;gap:28px;text-align:left}
}