:root{--dt-navy:#0B1E3F;--dt-navy-2:#122B5F;--dt-blue:#1E40AF;--dt-blue-2:#2563EB;--dt-amber:#F59E0B;--dt-amber-2:#FBBF24;--dt-green:#10B981;--dt-red:#DC2626;--dt-ink:#0F172A;--dt-body:#334155;--dt-muted:#64748B;--dt-line:#E2E8F0;--dt-bg:#F8FAFC;--dt-card:#FFFFFF;--dt-r:14px;--dt-shadow:0 4px 16px rgba(15,23,42,.06)}body.p-dang-tin{margin:0;background:var(--dt-bg);color:var(--dt-body);font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}.p-dang-tin *{box-sizing:border-box}.dt-wrap{max-width:1180px;margin:0 auto;padding:0 24px}.dt-head{text-align:center;max-width:760px;margin:0 auto 34px}.dt-head h2{font-size:29px;line-height:1.3;font-weight:800;color:var(--dt-ink);margin:0 0 10px;letter-spacing:-.4px}.dt-head p{margin:0;font-size:16px;color:var(--dt-muted)}.dt-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--dt-amber);color:#1F2937;font-weight:700;font-size:15.5px;padding:13px 26px;border-radius:10px;text-decoration:none;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}.dt-btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(245,158,11,.4)}.dt-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.dt-btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5)}.dt-btn.ghost:hover{background:rgba(255,255,255,.12);box-shadow:none}.dt-btn.blue{background:var(--dt-blue-2);color:#fff}.dt-btn.blue:hover{box-shadow:0 10px 24px rgba(37,99,235,.35)}.dt-hero{position:relative;overflow:hidden;background:linear-gradient(150deg,#123d82 0%,#0a2758 60%,#061a3d 100%);color:#fff;border-bottom:3px solid var(--dt-amber);padding:14px 0 clamp(150px,19vw,235px)}.dt-hero-band{position:absolute;left:0;right:0;bottom:0;width:100%;height:clamp(200px,31vw,335px);background-image:url('../hero-city.png');background-position:bottom center;background-size:cover;background-repeat:no-repeat;-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 70px,#000 100%);mask-image:linear-gradient(180deg,transparent 0,#000 70px,#000 100%);z-index:1;pointer-events:none}.dt-hero>.dt-wrap{position:relative;z-index:2}.dt-crumb{font-size:13px;color:#93A0C2;padding:16px 0 0;margin-bottom:16px}.dt-crumb a{color:#CBD5E1;text-decoration:none}.dt-crumb a:hover{text-decoration:underline}.dt-crumb span{margin:0 7px;color:#5B6B92}.dt-hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:44px;align-items:center}.dt-eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--dt-amber-2);background:rgba(245,158,11,.14);border:1px solid rgba(245,158,11,.35);padding:5px 12px;border-radius:999px;margin-bottom:16px}.dt-hero h1{font-size:38px;line-height:1.24;font-weight:800;color:#fff;margin:0 0 14px;letter-spacing:-.6px}.dt-hero h1 em{font-style:normal;color:var(--dt-amber-2)}.dt-lead{font-size:17px;color:#C7D0E6;margin:0 0 26px}.dt-cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}.dt-trust{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 24px}.dt-trust li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#C7D0E6}.dt-trust svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:var(--dt-green);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}.dt-hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:26px 28px;backdrop-filter:blur(2px)}.dt-hero-card h3{margin:0 0 18px;font-size:13px;letter-spacing:.9px;text-transform:uppercase;color:var(--dt-amber-2);font-weight:800}.dt-hero-card dl{margin:0;display:grid;gap:14px}.dt-hero-card .dt-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.09)}.dt-hero-card .dt-row:last-child{border-bottom:0;padding-bottom:0}.dt-hero-card dt{font-size:14.5px;color:#AEBBD8}.dt-hero-card dd{margin:0;font-size:15.5px;font-weight:700;color:#fff;text-align:right}.dt-hero-card dd b{color:var(--dt-amber-2);font-weight:800}.dt-stats{background:#fff;border-bottom:1px solid var(--dt-line)}.dt-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.dt-stat{padding:26px 22px;text-align:center;border-right:1px solid var(--dt-line)}.dt-stat:last-child{border-right:0}.dt-stat b{display:block;font-size:30px;font-weight:800;color:var(--dt-blue);letter-spacing:-.6px;line-height:1.2}.dt-stat span{display:block;margin-top:5px;font-size:14px;color:var(--dt-muted)}.dt-sec{padding:62px 0}.dt-sec.alt{background:#fff;border-top:1px solid var(--dt-line);border-bottom:1px solid var(--dt-line)}.dt-why{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.dt-why-card{background:var(--dt-card);border:1px solid var(--dt-line);border-radius:var(--dt-r);padding:26px 24px;box-shadow:var(--dt-shadow)}.dt-sec.alt .dt-why-card{background:var(--dt-bg)}.dt-ico{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:#EFF6FF;margin-bottom:15px}.dt-ico svg{width:23px;height:23px;fill:none;stroke:var(--dt-blue-2);stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round}.dt-ico.amber{background:#FEF3C7}.dt-ico.amber svg{stroke:#D97706}.dt-ico.green{background:#ECFDF5}.dt-ico.green svg{stroke:var(--dt-green)}.dt-why-card h3{margin:0 0 8px;font-size:17.5px;font-weight:800;color:var(--dt-ink);line-height:1.4}.dt-why-card p{margin:0;font-size:14.8px;color:var(--dt-body);line-height:1.68}.dt-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:buoc}.dt-step{position:relative;background:var(--dt-card);border:1px solid var(--dt-line);border-radius:var(--dt-r);padding:30px 24px 24px;box-shadow:var(--dt-shadow)}.dt-step::before{counter-increment:buoc;content:counter(buoc);position:absolute;top:-17px;left:24px;width:38px;height:38px;border-radius:50%;background:linear-gradient(140deg,#2563EB,#1E40AF);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;box-shadow:0 4px 12px rgba(37,99,235,.35)}.dt-step h3{margin:6px 0 8px;font-size:17.5px;font-weight:800;color:var(--dt-ink)}.dt-step p{margin:0;font-size:14.8px;color:var(--dt-body);line-height:1.68}.dt-step p a{color:var(--dt-blue);font-weight:600}.dt-tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.dt-tier{background:var(--dt-card);border:1px solid var(--dt-line);border-radius:var(--dt-r);overflow:hidden;box-shadow:var(--dt-shadow);display:flex;flex-direction:column}.dt-tier-top{padding:20px 22px 16px;border-bottom:1px solid var(--dt-line)}.dt-tier-nm{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:800;color:var(--dt-ink)}.dt-tier-nm i{width:11px;height:11px;border-radius:50%;flex-shrink:0}.dt-tier.dangcap .dt-tier-nm i{background:var(--dt-amber)}.dt-tier.vip .dt-tier-nm i{background:var(--dt-blue-2)}.dt-tier.gap .dt-tier-nm i{background:var(--dt-red)}.dt-tier.dangcap{border-color:#FCD34D}.dt-price{margin-top:9px;font-size:14.5px;color:var(--dt-muted)}.dt-price b{font-size:22px;font-weight:800;color:var(--dt-ink);letter-spacing:-.4px}.dt-tier img{display:block;width:100%;height:auto;background:#F1F5F9}.dt-tier ul{margin:0;padding:18px 22px 20px 38px;font-size:14.5px;line-height:1.62}.dt-tier li{margin-bottom:8px}.dt-tier li:last-child{margin-bottom:0}.dt-tier li::marker{color:var(--dt-blue-2)}.dt-tier strong{color:var(--dt-ink)}.dt-fit{margin:auto 22px 20px;padding:12px 14px;border-radius:9px;background:#F1F5F9;font-size:13.8px;line-height:1.6;color:var(--dt-body)}.dt-fit b{color:var(--dt-navy)}.dt-tier-note{margin:24px auto 0;max-width:840px;text-align:center;font-size:14.5px;color:var(--dt-muted)}.dt-tier-note b{color:var(--dt-ink)}.dt-chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;max-width:900px;margin:0 auto}.dt-chip{display:inline-block;background:#fff;color:var(--dt-navy);border:1px solid var(--dt-line);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:500;text-decoration:none}.dt-sec.alt .dt-chip{background:var(--dt-bg)}a.dt-chip:hover{background:#E0E7FF;border-color:#C7D2FE;color:var(--dt-blue)}.dt-faq{max-width:880px;margin:0 auto}.dt-faq details{background:#fff;border:1px solid var(--dt-line);border-radius:10px;padding:0 20px;margin-bottom:10px}.dt-sec.alt .dt-faq details{background:var(--dt-bg)}.dt-faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:var(--dt-ink);font-size:16px;display:flex;justify-content:space-between;gap:12px}.dt-faq summary::-webkit-details-marker{display:none}.dt-faq summary::after{content:'+';color:var(--dt-blue-2);font-size:23px;line-height:1;flex-shrink:0}.dt-faq details[open] summary::after{content:'−'}.dt-faq details[open] summary{border-bottom:1px solid var(--dt-line)}.dt-faq-a{padding:14px 0 17px;font-size:15px;line-height:1.72}.dt-faq-a p{margin:0 0 11px}.dt-faq-a p:last-child{margin-bottom:0}.dt-faq-a a{color:var(--dt-blue);font-weight:600}.dt-final{background:linear-gradient(135deg,#1E40AF,#2563EB);color:#fff;padding:52px 0;text-align:center}.dt-final h2{margin:0 0 10px;font-size:29px;font-weight:800;color:#fff;letter-spacing:-.4px}.dt-final p{margin:0 auto 26px;font-size:16px;color:#DBEAFE;max-width:640px}.dt-final .dt-cta-row{justify-content:center;margin-bottom:0}.dt-final .dt-btn.ghost{border-color:rgba(255,255,255,.6)}.dt-foot{background:linear-gradient(150deg,#123d82 0%,#0a2758 55%,#061a3d 100%);color:#93A0C2;border-top:3px solid var(--dt-amber);padding:34px 0 26px;font-size:14px}.dt-foot a{color:#C7D0E6;text-decoration:none}.dt-foot a:hover{color:#fff;text-decoration:underline}.dt-foot-row{display:flex;flex-wrap:wrap;gap:14px 26px;margin-bottom:18px}.dt-foot-bot{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;font-size:13px;color:#7C8AAE}@media (max-width:1024px){.dt-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}.dt-hero h1{font-size:32px}.dt-why,.dt-steps,.dt-tiers{grid-template-columns:repeat(2,1fr)}.dt-stats-grid{grid-template-columns:repeat(2,1fr)}.dt-stat:nth-child(2){border-right:0}.dt-stat:nth-child(1),.dt-stat:nth-child(2){border-bottom:1px solid var(--dt-line)}}