@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/bvp-vi-400.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/bvp-la-400.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/bvp-vi-600.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/bvp-la-600.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/bvp-vi-800.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/bvp-la-800.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--cam: #ea621c;--cam-dam: #c94e10;--cam-nhat: #fff1e8;--do: #d71b1c;--do-nhat: #fdeaea;--navy: #1E5BB8;--navy-dam: #153657;--navy-nhat: #EAF1FB;--chu: #1d2433;--chu-phu: #5b6475;--vien: #e3e7ee;--nen: #f6f8fb;--trang: #fff;--xanh-ok: #16794a;--xanh-ok-nhat: #e6f5ee;--vang: #b7791f;--vang-nhat: #fdf6e3;--r: 12px;--r-lon: 18px;--bong: 0 2px 10px rgba(21, 54, 87, .08);--bong-lon: 0 10px 30px rgba(21, 54, 87, .14);--rong: 1160px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:Be Vietnam Pro,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--chu);background:var(--trang);line-height:1.6;font-size:16px}img{max-width:100%;height:auto}a{color:var(--navy)}a:hover{color:var(--cam-dam)}h1,h2,h3,h4{line-height:1.25;color:var(--navy-dam);margin:0 0 .5em}h1{font-size:clamp(1.6rem,4.5vw,2.4rem);font-weight:800}h2{font-size:clamp(1.3rem,3.4vw,1.8rem);font-weight:800}h3{font-size:1.15rem;font-weight:600}p{margin:0 0 1em}.wrap{max-width:var(--rong);margin:0 auto;padding:0 16px}.sr{position:absolute!important;left:0;width:1px!important;height:1px!important;min-height:0!important;padding:0!important;border:0!important;overflow:hidden;clip:rect(0 0 0 0)}.muted{color:var(--chu-phu)}.small{font-size:.875rem}.center{text-align:center}.mb0{margin-bottom:0}.stack>*+*{margin-top:12px}.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.between{justify-content:space-between}.grid{display:grid;gap:20px}@media (min-width: 640px){.g2,.g3{grid-template-columns:repeat(2,1fr)}}@media (min-width: 960px){.g3{grid-template-columns:repeat(3,1fr)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 20px;border-radius:999px;border:2px solid transparent;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;transition:.15s;background:var(--navy);color:#fff;line-height:1.2;text-align:center}.btn:hover{background:var(--navy-dam);color:#fff}.btn-cam{background:var(--cam)}.btn-cam:hover{background:var(--cam-dam)}.btn-do{background:var(--do)}.btn-do:hover{background:#b01414}.btn-vien{background:transparent;color:var(--navy);border-color:var(--navy)}.btn-vien:hover{background:var(--navy-nhat);color:var(--navy)}.btn-trang{background:#fff;color:var(--navy)}.btn-trang:hover{background:var(--cam-nhat);color:var(--cam-dam)}.btn-nho{min-height:36px;padding:6px 14px;font-size:.9rem}@media (max-width: 759px){body:not(.is-admin) .btn-nho{min-height:44px;padding:8px 16px}}.btn-khoi{width:100%}.btn[disabled]{opacity:.55;cursor:not-allowed}.top{position:sticky;top:0;z-index:50;background:#fffffff7;border-bottom:1px solid var(--vien);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.top .wrap{display:flex;align-items:center;gap:16px;min-height:64px}.logo{display:inline-flex;align-items:center;min-height:44px}.logo img{display:block;height:44px;width:auto}.nav{margin-left:auto;display:flex;align-items:center;gap:4px}.nav a{padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--navy-dam);font-weight:600;font-size:.95rem}.nav a:hover,.nav a[aria-current]{background:var(--cam-nhat);color:var(--cam-dam)}.nav .btn{color:#fff;margin-left:6px}.menu-mobile{display:none;margin-left:auto}.menu-mobile summary{list-style:none;cursor:pointer;padding:10px;border-radius:8px;font-weight:600;color:var(--navy);border:1px solid var(--vien)}.menu-mobile summary::-webkit-details-marker{display:none}.menu-mobile[open] .menu-panel{display:flex}.menu-panel{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;flex-direction:column;padding:8px 16px 16px;border-bottom:1px solid var(--vien);box-shadow:var(--bong-lon)}.menu-panel a{padding:12px 4px;border-bottom:1px solid var(--vien);text-decoration:none;font-weight:600;color:var(--navy-dam)}.menu-panel .btn{margin-top:12px;border:0;color:#fff}@media (max-width: 959px){.nav{display:none}.menu-mobile{display:block}.logo img{height:38px}}.section{padding:48px 0}.section-nen{background:var(--nen)}.section-head{text-align:center;max-width:720px;margin:0 auto 28px}.eyebrow{display:inline-block;color:var(--cam-dam);font-weight:600;font-size:.9rem;margin-bottom:6px}.article>*,.learn>*,.grid>*{min-width:0}.card{background:#fff;border:1px solid var(--vien);border-radius:var(--r-lon);overflow:hidden;display:flex;flex-direction:column;transition:.15s}.card:hover{box-shadow:var(--bong-lon);transform:translateY(-2px)}.card-img{aspect-ratio:16 / 9;background:var(--navy-nhat) center / cover no-repeat;display:block}.card-img img{width:100%;height:100%;object-fit:cover;display:block}.card-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}.card-body h3{margin:0;font-size:1.05rem}.card-body h3 a{color:var(--navy-dam);text-decoration:none}.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.price{font-weight:800;color:var(--do);font-size:1.15rem}.box{background:#fff;border:1px solid var(--vien);border-radius:var(--r-lon);padding:20px}.note{border-left:4px solid var(--cam);background:var(--cam-nhat);padding:12px 16px;border-radius:8px}.note-ok{border-color:var(--xanh-ok);background:var(--xanh-ok-nhat)}.note-navy{border-color:var(--navy);background:var(--navy-nhat)}.prose{font-size:1.04rem;line-height:1.75;overflow-wrap:anywhere}.prose h2{margin-top:1.6em}.prose h3{margin-top:1.3em}.prose img{border-radius:10px;display:block;margin:12px auto}.prose figure{margin:16px 0}.prose figcaption{text-align:center;font-size:.9rem;color:var(--chu-phu)}.prose table{width:100%;border-collapse:collapse;display:block;overflow-x:auto;font-size:.95rem}.prose td,.prose th{border:1px solid var(--vien);padding:8px;vertical-align:top}.prose ul,.prose ol{padding-left:1.4em}.prose blockquote{margin:16px 0;padding:12px 16px;border-left:4px solid var(--cam);background:var(--cam-nhat);border-radius:8px}.prose button{display:none}.article{display:grid;gap:32px}@media (min-width: 1000px){.article{grid-template-columns:minmax(0,1fr) 320px}}.aside .box{position:sticky;top:84px}.breadcrumb{font-size:.875rem;color:var(--chu-phu);margin:16px 0}.breadcrumb a{color:var(--chu-phu)}.pager{display:flex;gap:8px;justify-content:center;margin-top:28px;flex-wrap:wrap}.pager a,.pager span{min-width:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--vien);text-decoration:none}.pager span{background:var(--navy);color:#fff;border-color:var(--navy)}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.chip{display:inline-flex;align-items:center;min-height:44px;padding:6px 14px;border-radius:999px;border:1px solid var(--vien);text-decoration:none;color:var(--navy-dam);font-weight:600;font-size:.9rem}.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}.toc{border:1px solid var(--vien);border-radius:var(--r-lon);overflow:hidden}.toc details{border-bottom:1px solid var(--vien)}.toc details:last-child{border-bottom:0}.toc summary{padding:14px 16px;font-weight:600;cursor:pointer;background:var(--nen);display:flex;justify-content:space-between;gap:8px}.toc ol{margin:0;padding:0;list-style:none}.toc li{display:flex;gap:10px;align-items:center;padding:10px 16px;border-top:1px solid var(--vien);font-size:.95rem}.toc li .t{flex:1}.toc li a{text-decoration:none}.toc li .done{color:var(--xanh-ok);font-weight:800}.toc li.dang-hoc{background:var(--cam-nhat)}.form{display:grid;gap:14px}.field label,.label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}.field small{color:var(--chu-phu)}input:not([type]),input[type=text],input[type=tel],input[type=email],input[type=password],input[type=number],input[type=search],input[type=url],input[type=date],select,textarea{width:100%;min-height:46px;padding:10px 14px;border:1px solid #cfd6e2;border-radius:10px;font:inherit;background:#fff;color:var(--chu)}textarea{min-height:120px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid rgba(234,98,28,.25);border-color:var(--cam)}.choices{display:grid;gap:8px}.choice{display:flex;gap:10px;align-items:center;padding:12px 14px;border:1px solid var(--vien);border-radius:10px;cursor:pointer;background:#fff}.choice:has(input:checked){border-color:var(--cam);background:var(--cam-nhat)}.choice input{width:20px;height:20px;accent-color:var(--cam);flex:none}.err{color:var(--do);font-weight:600}.ok{color:var(--xanh-ok);font-weight:600}.quiz-q{padding:18px;border:1px solid var(--vien);border-radius:var(--r-lon);background:#fff}.quiz-q h3{font-size:1.05rem}.quiz-q .num{color:var(--cam-dam);font-weight:800;margin-right:6px}.scale{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.scale label{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 4px;border:1px solid var(--vien);border-radius:10px;cursor:pointer;text-align:center;font-size:.78rem;line-height:1.25}.scale label b{font-size:1.1rem;color:var(--navy)}.scale label:has(input:checked){border-color:var(--cam);background:var(--cam-nhat)}.scale input{position:absolute;opacity:0;pointer-events:none}.progress{position:sticky;top:64px;z-index:5;background:#fff;padding:10px 0}.bar{height:10px;background:var(--vien);border-radius:999px;overflow:hidden}.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cam),var(--do));transition:width .2s}.result-type{border-radius:var(--r-lon);padding:20px;background:#fff;border:2px solid var(--vien)}.result-type.top1{border-color:var(--cam)}.result-type .code{display:inline-flex;width:48px;height:48px;border-radius:12px;align-items:center;justify-content:center;font-weight:800;color:#fff;background:var(--navy);font-size:1.2rem;margin-right:10px}.result-type.top1 .code{background:var(--cam)}.table-wrap{overflow-x:auto;border:1px solid var(--vien);border-radius:var(--r);background:#fff}table.t{width:100%;border-collapse:collapse;font-size:.92rem}table.t th,table.t td{padding:10px 12px;border-bottom:1px solid var(--vien);text-align:left;vertical-align:top}table.t th{background:var(--nen);font-weight:600;white-space:nowrap}table.t tr:last-child td{border-bottom:0}@media (max-width: 759px){.t-the-wrap{border:0;background:none;overflow:visible}.t-the-wrap table.t-the{min-width:0}table.t-the thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}table.t-the,table.t-the tbody,table.t-the tr,table.t-the td{display:block;width:100%}table.t-the tr{border:1px solid var(--vien);border-radius:var(--r);background:#fff;margin-bottom:12px;padding:4px 0}table.t-the tr:last-child td,table.t-the td{border-bottom:0}table.t-the td{padding:6px 12px;overflow-wrap:anywhere}table.t-the td:before{content:attr(data-label);display:block;font-size:.78rem;font-weight:600;color:var(--chu-phu)}table.t-the td form{display:grid;gap:8px}table.t-the td input{width:100%!important}}.foot{background:var(--navy-dam);color:#c9d6ea;padding:40px 0 90px;font-size:.95rem}.foot a{color:#fff}.foot h3{color:#fff;font-size:1rem}.foot ul{list-style:none;padding:0;margin:0}.foot li{padding:4px 0}.foot .copy{border-top:1px solid rgba(255,255,255,.15);margin-top:24px;padding-top:16px;font-size:.85rem}.float-zalo{position:fixed;right:14px;bottom:16px;z-index:60;display:flex;flex-direction:column;gap:10px}.float-zalo a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;text-decoration:none;box-shadow:var(--bong-lon);font-size:.8rem}.float-zalo .z{background:#0068ff}.float-zalo .p{background:var(--do)}.dev-banner{background:var(--vang-nhat);color:var(--vang);text-align:center;font-size:.85rem;padding:4px 8px;font-weight:600}.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;text-align:left}.kv dt{color:var(--chu-phu)}.kv dd{margin:0;font-weight:600;overflow-wrap:anywhere}.admin{display:grid;min-height:100vh;grid-template-columns:minmax(0,1fr)}@media (min-width: 900px){.admin{grid-template-columns:230px minmax(0,1fr)}}.flash{padding:10px 14px;border-radius:10px;margin-bottom:16px;font-weight:600}.flash.ok{background:var(--xanh-ok-nhat);color:var(--xanh-ok)}.flash.err{background:var(--do-nhat);color:var(--do)}code.k{background:var(--navy-nhat);padding:1px 6px;border-radius:6px}:root{--dem: #0f2a4a;--giay: #f2f6fb;--kem: #fff8f3;--cam-sang: #ff8a4c}.landing h1,.landing h2{letter-spacing:-.02em}.landing h1{font-size:clamp(1.9rem,5vw,3.2rem);line-height:1.12}.landing h2{font-size:clamp(1.35rem,3.4vw,1.9rem)}.btn-lon{min-height:52px;padding:12px 26px;font-size:1.05rem;border-radius:12px}.landing .btn{border-radius:10px}.btn-ghost{background:transparent;color:#fff;border-color:#ffffff8c}.btn-ghost:hover{background:#ffffff1a;color:#fff}.nav-login{padding:8px 10px;font-weight:600;text-decoration:none;color:var(--navy-dam);margin-left:6px}:focus-visible{outline:3px solid var(--cam-sang);outline-offset:2px}.bund-kicker{font-weight:600;font-size:.9rem;color:var(--cam-dam);margin:0 0 6px}.h-hero{background:linear-gradient(180deg,var(--kem),#fff 90%);color:var(--chu);padding:44px 0 56px;overflow:hidden;border-bottom:1px solid var(--vien)}.h-hero-in{display:grid;gap:36px;align-items:center}@media (min-width: 960px){.h-hero-in{grid-template-columns:1.1fr .9fr}.h-hero{padding:64px 0 72px}}.h-hero h1{color:var(--navy-dam);margin-bottom:18px;max-width:18ch}.h-lead{font-size:clamp(1.02rem,2vw,1.15rem);line-height:1.65;max-width:56ch;color:var(--chu-phu);margin-bottom:26px}.h-cta{display:flex;flex-wrap:wrap;gap:12px}.h-cta form{margin:0}.h-who{display:flex;gap:14px;align-items:center;margin-top:30px;max-width:56ch}.h-who img{width:56px;height:56px;border-radius:50%;object-fit:cover;background:var(--navy-nhat);color:transparent;flex:none}.h-who p{margin:0;font-size:.92rem;color:var(--chu-phu)}.h-who b{color:var(--navy-dam)}.hex{position:relative;max-width:400px;justify-self:center;width:100%}.hex svg{width:100%;height:auto;display:block;overflow:visible}.hex-grid polygon,.hex-grid line{fill:none;stroke:#c9d6ea;stroke-width:1.2}.hex-grid polygon:first-child{fill:#fff;stroke:#9fb3d1}.hex-node{cursor:pointer}.hex-node circle{fill:#fff;stroke:var(--navy);stroke-width:2;transition:fill .2s,stroke .2s}.hex-node text{fill:var(--navy-dam);font-weight:800;font-size:22px;text-anchor:middle;pointer-events:none}.hex-node:hover circle,.hex-node:focus circle{stroke:var(--cam)}.hex-node:focus{outline:none}.hex-node.on circle{fill:var(--cam);stroke:var(--cam)}.hex-node.on text{fill:#fff}.hex-panels{min-height:112px;margin-top:8px;background:#fff;border:1px solid var(--vien);border-left:3px solid var(--cam);border-radius:0 12px 12px 0;padding:14px 16px}.hex-panel b{color:var(--navy-dam);font-size:1.05rem}.hex-panel p{margin:6px 0 0;font-size:.92rem;color:var(--chu-phu)}.hex-hint{font-size:.82rem;color:var(--chu-phu);margin:10px 0 0}.mua{background:var(--navy-nhat);border-bottom:1px solid var(--vien)}.mua-in{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;padding-top:10px;padding-bottom:10px;font-size:.95rem}.mua-in p{color:var(--navy-dam)}.mua-in a{font-weight:600;white-space:nowrap}.sec{padding:64px 0}.sec-paper{background:var(--giay)}.sec-navy{background:var(--dem);color:#dfe8f5}.sec-navy h2{color:#fff}.sec-head{max-width:640px;margin-bottom:30px}.sec-head p{color:var(--chu-phu);font-size:1.05rem}.two{display:grid;gap:40px}@media (min-width: 960px){.two{grid-template-columns:1fr 1fr}}.pains{display:grid;gap:0;border-top:2px solid var(--navy-dam)}@media (min-width: 800px){.pains{grid-template-columns:repeat(3,1fr)}.pains>div+div{border-left:1px solid var(--vien)}}.pains>div{padding:22px 20px 6px 0}@media (min-width: 800px){.pains>div{padding:22px 24px 6px}.pains>div:first-child{padding-left:0}}.pains p{color:var(--chu-phu)}.spot-main{padding:30px 28px}.spot-main h2{margin-top:14px}.facts{list-style:none;padding:0;margin:18px 0;display:flex;flex-wrap:wrap;gap:8px 22px;color:var(--chu-phu)}.facts b{color:var(--navy-dam);font-size:1.25rem;margin-right:4px}.chap{margin:0;padding-left:1.3em;columns:2 260px;column-gap:32px}.chap li{break-inside:avoid;padding:3px 0}.spot-buy{background:var(--giay);padding:30px 28px;display:flex;flex-direction:column;gap:12px;justify-content:center}.spot-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px}.spot-price b{font-size:2.2rem;color:var(--do);font-weight:800;letter-spacing:-.02em}.spot-price s{color:var(--chu-phu)}.spot-buy p{color:var(--chu-phu);font-size:.9rem;margin:0}.consult-lead{font-size:1.08rem}.ticks{list-style:none;padding:0;margin:18px 0 26px;display:grid;gap:10px}.ticks li{padding-left:30px;position:relative}.ticks li:before{content:"";position:absolute;left:4px;top:.45em;width:12px;height:7px;border-left:3px solid var(--cam-sang);border-bottom:3px solid var(--cam-sang);transform:rotate(-45deg)}.ticks-dark li:before{border-color:var(--cam)}.book{background:#fff;color:var(--chu);border-radius:18px;padding:24px;display:grid;gap:12px}.book h3{margin:0;font-size:1.25rem}.book>p{margin:0;color:var(--chu-phu);font-size:.92rem}.book label{display:grid;gap:6px;font-weight:600;font-size:.92rem}.book-row{display:grid;gap:12px;grid-template-columns:1fr 1fr}@media (max-width: 420px){.book-row{grid-template-columns:1fr}}.book-note{font-size:.88rem;color:var(--chu-phu);margin:0;text-align:center}.book-ok{border:2px solid var(--xanh-ok)}.sec .book{border:1px solid var(--vien)}.quotes{display:grid;gap:18px}@media (min-width: 900px){.sec>.wrap>.quotes{grid-template-columns:repeat(3,1fr)}}.quotes figure{margin:0;padding:22px;background:var(--giay);border-radius:16px;display:flex;flex-direction:column;gap:12px}.sec-paper .quotes figure{background:#fff}.quotes blockquote{margin:0;font-size:1.04rem;line-height:1.6}.quotes figcaption{font-size:.88rem;color:var(--chu-phu);display:grid}.quotes figcaption b{color:var(--navy-dam)}.about{display:grid;gap:24px;align-items:center}@media (min-width: 760px){.about{grid-template-columns:160px 1fr}}.about img{width:160px;height:160px;border-radius:50%;object-fit:cover;background:var(--giay);color:transparent}.about p{color:var(--chu-phu);max-width:70ch}.trust{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-wrap:wrap;gap:14px 32px}.trust b{display:block;font-size:1.5rem;color:var(--navy-dam);letter-spacing:-.02em}.trust span{font-size:.88rem;color:var(--chu-phu)}.faq details{border-bottom:1px solid var(--vien)}.faq summary{cursor:pointer;padding:16px 28px 16px 0;font-weight:700;color:var(--navy-dam);list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:4px;top:12px;font-size:1.4rem;color:var(--cam)}.faq details[open] summary:after{content:"\2013"}.faq details>div{padding:0 0 16px;color:var(--chu-phu)}.news{list-style:none;padding:0;margin:0 0 18px}.news a{display:grid;gap:4px;padding:14px 0;border-bottom:1px solid var(--vien);text-decoration:none;color:var(--chu)}.news b{color:var(--navy-dam)}.news span{color:var(--chu-phu);font-size:.92rem}.news time{font-size:.8rem;color:var(--chu-phu)}.final{background:var(--cam);color:#fff;padding:52px 0}.final h2{color:#fff}.final .btn-cam{background:#fff;color:var(--cam-dam)}.final .btn-cam:hover{background:var(--dem);color:#fff}.c-hero{background:var(--dem);color:#dfe8f5;padding:24px 0 56px}.c-hero .breadcrumb,.c-hero .breadcrumb a{color:#8ea4c2}.c-hero h1{color:#fff;font-size:clamp(1.9rem,4.6vw,3rem);max-width:18ch}.c-hero-in{display:grid;gap:32px;align-items:center}@media (min-width: 900px){.c-hero-in{grid-template-columns:1fr 260px}}.c-price{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin:0 0 24px}.c-price b{font-size:2rem;color:#fff}.c-price span{color:#b9c8dd}.c-who{text-align:center}.c-who img{width:220px;height:220px;border-radius:50%;object-fit:cover;border:4px solid var(--cam);background:#284a72;color:transparent}.c-who p{margin:10px 0 0;display:grid;font-size:.9rem;color:#b9c8dd}.c-who b{color:#fff;font-size:1.05rem}.timeline{list-style:none;margin:0;padding:0;counter-reset:b;display:grid;gap:0}@media (min-width: 900px){.timeline{grid-template-columns:repeat(3,1fr);column-gap:28px}}.timeline li{counter-increment:b;padding:18px 0 18px 56px;position:relative;border-top:1px solid var(--vien)}.timeline li:before{content:counter(b);position:absolute;left:0;top:18px;width:40px;height:40px;border-radius:50%;background:var(--navy-dam);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}.timeline h3{margin-bottom:4px}.timeline p{color:var(--chu-phu);margin-bottom:6px}.timeline small{color:var(--cam-dam);font-weight:600}.nv td:first-child{color:var(--chu-phu);width:32px}.tier{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.82rem;font-weight:700;white-space:nowrap}.tier-1{background:var(--do-nhat);color:var(--do)}.tier-2{background:var(--navy-nhat);color:var(--navy)}.tier-3{background:var(--xanh-ok-nhat);color:var(--xanh-ok)}.consult-grid{display:grid;gap:40px;align-items:start}@media (min-width: 960px){.consult-grid{grid-template-columns:1fr 440px}}.rules{padding-left:1.2em;color:var(--chu-phu)}.rules li{margin-bottom:8px}.pay{margin-top:18px;padding:20px;border-radius:16px;background:var(--giay)}.pay h3{font-size:1.05rem}.pay p{font-size:.9rem;color:var(--chu-phu);margin:12px 0 0}.pkgs{display:grid;gap:18px}@media (min-width: 900px){.pkgs{grid-template-columns:repeat(3,1fr)}}.pkg2{background:#fff;border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:8px;border:2px solid transparent}.pkg2.best{border-color:var(--cam)}.pkg2-sub{color:var(--chu-phu);font-size:.9rem;margin:0}.pkg2-price{font-size:1.6rem;font-weight:800;color:var(--do)}.pkg2 ul{padding-left:1.2em;margin:4px 0 12px;flex:1}.pkg2 form{margin-top:auto}.m-bar{display:none}@media (max-width: 759px){.float-zalo{display:none}.m-bar{display:grid;grid-template-columns:1fr 1fr 1.4fr;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--vien);box-shadow:0 -4px 16px #0f2a4a14;padding-bottom:env(safe-area-inset-bottom)}.m-bar a{min-height:54px;display:flex;align-items:center;justify-content:center;text-decoration:none;font-weight:700;font-size:.9rem;color:var(--navy-dam)}.m-bar .m-bar-main{background:var(--cam);color:#fff}.m-bar-2{grid-template-columns:1fr 1.6fr}.is-admin .m-bar,.learn-page .m-bar,.ban-khoa .float-zalo{display:none}}@media (max-width: 959px){.nav-login{display:none}}@media (prefers-reduced-motion: reduce){*{transition:none!important;scroll-behavior:auto!important}}.k-hero{background:var(--dem);color:#dfe8f5;padding:20px 0 48px}.k-hero .breadcrumb,.k-hero .breadcrumb a{color:#8ea4c2}.k-hero h1{color:#fff;font-size:clamp(1.8rem,4.4vw,2.8rem);max-width:22ch}.k-hero-in{display:grid;gap:28px;align-items:start}@media (min-width: 960px){.k-hero-in{grid-template-columns:1fr 400px}}.facts-dark{color:#b9c8dd}.facts-dark b{color:#fff}.k-who{color:#b9c8dd;font-size:.95rem}.k-who b{color:#fff}.k-buy{background:#fff;color:var(--chu);border-radius:18px;overflow:hidden}.k-buy img{display:block;width:100%;aspect-ratio:16 / 9;object-fit:cover;background:var(--giay);color:transparent}.k-buy-in{padding:20px;display:grid;gap:10px}.k-buy-in form{margin:0}.k-body{display:grid;gap:40px}@media (min-width: 1000px){.k-body{grid-template-columns:minmax(0,1fr) 320px}.k-side{position:sticky;top:88px;align-self:start}}.k-side-box{background:var(--giay);border-radius:18px;padding:22px;display:grid;gap:10px}.k-side-box p{color:var(--chu-phu);margin:0}.k-side-box h3{margin:0}.k-side-box .btn+.btn{margin-top:0}.ve{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:10px;font-weight:800;font-size:1.05rem;letter-spacing:-.01em;background:var(--navy-nhat);color:var(--navy);flex:none;line-height:1;text-align:center;padding:0 4px}.ve-toan{background:var(--navy);color:#fff}.ve-tsa{background:var(--cam);color:#fff}.ve-hsa{background:var(--do);color:#fff}.ve-vact{background:var(--navy-dam);color:#fff;font-size:.82rem;white-space:nowrap}.ve-lon{width:72px;height:72px;font-size:1.25rem}.ve-lon.ve-vact{font-size:.95rem}.chip-ve{display:inline-flex;align-items:center;padding:5px 11px;border-radius:8px;border:1px solid var(--vien);background:#fff;color:var(--chu-phu);font-weight:700;font-size:.82rem;text-decoration:none}.chip-ve.on{border-color:var(--xanh-ok);color:var(--xanh-ok);background:var(--xanh-ok-nhat)}.chip-ve:hover{border-color:var(--navy);color:var(--navy)}.bund-chips{display:flex;flex-wrap:wrap;gap:8px}.ve-luoi{list-style:none;margin:0;padding:0;display:grid;gap:14px}@media (min-width: 640px){.ve-luoi{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1000px){.ve-luoi{grid-template-columns:repeat(4,1fr)}}.ve-o{display:flex;flex-direction:column;gap:10px;padding:16px;border:1px solid var(--vien);border-radius:14px;background:#fff;text-decoration:none;color:var(--chu);min-width:0}a.ve-o{flex-direction:row;align-items:center;flex-wrap:wrap}a.ve-o .ve-o-t{flex:1}.ve-o-t{font-weight:700;color:var(--navy-dam);line-height:1.35}.ve-o-d{margin:0;font-size:.9rem;color:var(--chu-phu);flex:1}.btn.da-xong{background:var(--xanh-ok-nhat);color:var(--xanh-ok);border-color:var(--xanh-ok)}.spot{display:grid;gap:0;border:2px solid var(--navy-dam);border-radius:20px;overflow:hidden;background:#fff}@media (min-width: 960px){.spot{grid-template-columns:1.5fr 1fr}}.spot-main h2{margin-top:0}.bund-list{list-style:none;padding:0;margin:14px 0 18px;display:grid;gap:10px}.bund-list li{padding-left:26px;position:relative;color:var(--chu-phu)}.bund-list li:before{content:"";position:absolute;left:2px;top:.5em;width:11px;height:6px;border-left:3px solid var(--cam);border-bottom:3px solid var(--cam);transform:rotate(-45deg)}.bund-list b{color:var(--chu)}.spot-buy .bund-chips{margin-bottom:6px}.bund{display:grid;gap:0;border:2px solid var(--navy-dam);border-radius:20px;overflow:hidden;background:#fff}@media (min-width: 900px){.bund{grid-template-columns:1.4fr 1fr}}.bund-main{padding:26px 24px}.bund-title{font-size:1.35rem;margin:0 0 6px}.bund-buy{background:var(--giay);padding:26px 24px;display:grid;gap:10px;align-content:center}.bund-gon .bund-main,.bund-gon .bund-buy{padding:20px}.about-lines{padding-left:1.2em;margin:0 0 10px;color:var(--chu-phu)}.kien-thuc h3{font-size:1.05rem;color:var(--cam-dam);font-weight:600;margin-bottom:4px}.tv-ngan{display:grid;gap:24px;align-items:center}@media (min-width: 900px){.tv-ngan{grid-template-columns:1fr auto}}.tv-ngan .consult-lead{margin:0;color:#dfe8f5}.lt-hero{background:linear-gradient(180deg,var(--kem),#fff 90%);padding:8px 0 44px;border-bottom:1px solid var(--vien)}.lt-hero h1{max-width:24ch}.lt-note{margin:18px 0 0;padding:12px 16px;background:#fff;border:1px solid var(--vien);border-left:3px solid var(--vang);border-radius:0 10px 10px 0;color:var(--chu-phu);font-size:.95rem;max-width:60ch}.lt-hero-in{display:grid;gap:28px;align-items:start}@media (min-width: 960px){.lt-hero-in{grid-template-columns:1fr 400px}}.lt-title{display:flex;gap:14px;align-items:center;margin-bottom:12px}.lt-title h1{margin:0}.lt-own{color:var(--xanh-ok);font-weight:600;width:100%;margin:0 0 4px}.cach-hoc{list-style:none;margin:0;padding:0;counter-reset:b;display:grid;gap:14px}@media (min-width: 900px){.cach-hoc{grid-template-columns:repeat(3,1fr);gap:24px}}.cach-hoc li{counter-increment:b;position:relative;padding:4px 0 0 52px;display:grid;gap:4px}.cach-hoc li:before{content:counter(b);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--navy-dam);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}.cach-hoc b{color:var(--navy-dam);font-size:1.05rem}.cach-hoc span{color:var(--chu-phu)}.lt-group{font-size:1.15rem;margin:0 0 12px}.lt-group~.lt-group{margin-top:34px}.lt-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.lt-row{display:grid;grid-template-columns:56px 1fr;gap:12px 14px;padding:16px;background:#fff;border:1px solid var(--vien);border-radius:14px;align-items:start}@media (min-width: 760px){.lt-row{grid-template-columns:56px 1fr auto;align-items:center}}.lt-row h3{margin:0 0 4px;font-size:1.05rem}.lt-row h3 a{text-decoration:none;color:var(--navy-dam)}.lt-row p{margin:0 0 8px;color:var(--chu-phu);font-size:.95rem}.lt-row-meta{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center}.lt-row-cta{grid-column:1 / -1}.lt-row-cta .btn{width:100%}@media (min-width: 760px){.lt-row-cta{grid-column:auto}.lt-row-cta .btn{width:auto}}.lt-body{display:grid;gap:36px}.lt-body>*,.lo-trinh li>div{min-width:0;overflow-wrap:anywhere}@media (min-width: 1000px){.lt-body{grid-template-columns:minmax(0,1fr) 320px}.lt-side{position:sticky;top:88px;align-self:start}}.lo-trinh{list-style:none;margin:0;padding:0;counter-reset:c;display:grid;gap:0;border-top:1px solid var(--vien)}.lo-trinh li{counter-increment:c;display:flex;gap:14px;align-items:center;justify-content:space-between;padding:14px 0 14px 44px;border-bottom:1px solid var(--vien);position:relative}.lo-trinh .badge,.lt-row-meta .badge,.ve-o-f .badge{white-space:nowrap;flex:none}.lo-trinh li:before{content:counter(c);position:absolute;left:0;top:14px;width:30px;height:30px;border-radius:8px;background:var(--navy-nhat);color:var(--navy);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:.9rem}.dang-cap-nhat{padding:16px 18px;border:1px dashed #c9d6ea;border-radius:12px;background:var(--giay);color:var(--chu-phu)}.ky-thi .kv{margin-bottom:12px}.cho-mo{background:#fff;border:1px solid var(--vien);border-radius:18px;padding:22px;display:grid;gap:12px}.cho-mo-t{margin:0;font-weight:800;color:var(--navy-dam);font-size:1.15rem}.cho-mo-x{margin:0;color:var(--chu-phu);font-size:.92rem}.cho-mo label{display:grid;gap:6px;font-weight:600;font-size:.92rem}.cho-mo-row{display:grid;gap:12px;grid-template-columns:1fr 1fr}@media (max-width: 420px){.cho-mo-row{grid-template-columns:1fr}}.cho-mo-ok{border-color:var(--xanh-ok)}.cho-mo-ok p{margin:0;color:var(--chu-phu)}.cho-mo-nho[hidden]{display:none}.bk-kicker{font-weight:600;font-size:.9rem;color:var(--cam-dam);margin:6px 0 8px}.bk-page{background:linear-gradient(180deg,var(--kem),#fff 480px);padding:8px 0 56px}.bk-page h1{max-width:18ch}.bk-grid{display:grid;gap:28px;align-items:start}.bk-hr{border:0;border-top:1px solid var(--vien);margin:36px 0 44px}.bk-side{display:none}@media (min-width: 1000px){.bk-grid{grid-template-columns:minmax(0,1fr) 360px}.bk-side{display:block;position:sticky;top:88px}.bk-hero-buy{display:none}}.bk-buy{background:#fff;border:2px solid var(--navy-dam);border-radius:18px;padding:22px;display:grid;gap:10px}.bk-buy form{margin:0}.bk-buy-list{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:6px;color:var(--chu-phu);font-size:.92rem}.bk-buy-list li{padding-left:22px;position:relative}.bk-buy-list li:before{content:"";position:absolute;left:2px;top:.5em;width:10px;height:5px;border-left:3px solid var(--cam);border-bottom:3px solid var(--cam);transform:rotate(-45deg)}.bk-main{max-width:760px;min-width:0}.danh-cho{list-style:none;margin:0;padding:0;display:grid;gap:10px}.danh-cho li{padding:12px 0 12px 22px;border-bottom:1px solid var(--vien);position:relative;color:var(--chu-phu)}.danh-cho li:before{content:"";position:absolute;left:2px;top:1.1em;width:8px;height:8px;border-radius:50%;background:var(--cam)}.danh-cho b{color:var(--chu)}.gia-tri{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:10px}@media (min-width: 640px){.gia-tri{grid-template-columns:1fr 1fr}}.gia-tri li{padding:12px 14px;border:1px solid var(--vien);border-radius:10px;color:var(--chu-phu);font-size:.95rem}.gia-tri b{color:var(--navy-dam)}.chuong-ds-ngoai{display:grid;gap:12px}.chuong-intro{border:1px solid var(--vien);border-radius:14px;padding:16px;background:var(--cam-nhat)}.chuong-h{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;margin-bottom:4px}.chuong-h b{color:var(--navy-dam);font-size:1.05rem}.chuong{display:grid;gap:10px}.chuong-d{border:1px solid var(--vien);border-radius:14px;background:#fff}.chuong-d summary{display:flex;gap:12px;align-items:center;min-height:56px;padding:10px 14px;cursor:pointer;list-style:none}.chuong-d summary::-webkit-details-marker{display:none}.chuong-d summary:after{content:"+";margin-left:auto;font-size:1.4rem;line-height:1;color:var(--cam-dam);font-weight:700}.chuong-d[open] summary:after{content:"\2212"}.chuong-d[open]{border-color:var(--navy-dam)}.chuong-so{flex:none;width:30px;height:30px;border-radius:50%;background:var(--navy-dam);color:#fff;font-weight:800;font-size:.88rem;display:flex;align-items:center;justify-content:center}.chuong-tt{display:grid;gap:2px;min-width:0}.chuong-tt b{color:var(--navy-dam);font-size:1.02rem}.chuong-nd{padding:0 14px 16px}.chuong-mt{margin:0 0 10px;color:var(--chu-phu)}.chuong-ds{list-style:none;margin:0;padding:0;display:grid;gap:8px}.chuong-ds li{padding:8px 0;border-top:1px solid var(--vien)}.chuong-bt{display:block}.chuong-bm{display:block;margin-top:2px;font-size:.9rem;color:var(--chu-phu)}.chuong-thu{display:inline-block;margin-left:6px;font-weight:700;font-size:.88rem;color:var(--cam-dam);min-height:24px}.chuong-tap{margin:12px 0 0;font-size:.92rem;color:var(--chu-phu)}.dmp-tools{margin:4px 0 0;padding-left:1.1em;font-size:.9rem;color:var(--chu-phu)}.mag-nut{margin:14px 0 0;display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}.ket-qua-chang{margin:0 0 24px;padding:16px 18px;border-radius:14px;background:var(--cam-nhat);border:1px solid #f6d9c6}.ket-qua-chang h2,.lt-ket h3{font-size:1.05rem;margin:0 0 8px;color:var(--navy-dam)}.ket-qua-chang ul,.lt-ket ul{margin:0;padding-left:1.2em}.ket-qua-chang li,.lt-ket li{padding:2px 0}.da-doc{display:inline-block;padding:2px 9px;border-radius:999px;background:#e6f4ea;color:#1b6e3a;font-size:.76rem;font-weight:700}.da-doc[hidden]{display:none}.bai-anh{display:block;aspect-ratio:640 / 344;overflow:hidden;background:var(--cam-nhat)}.bai-anh img{width:100%;height:100%;object-fit:cover;display:block}.the-hang{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center;margin-bottom:6px}.bai-so{font-size:.8rem;font-weight:800;color:var(--navy-dam)}.viec-tiep{margin:28px 0 0;padding:18px 20px;border-radius:14px;background:var(--navy-dam);color:#fff}.viec-tiep .bund-kicker{color:var(--cam-sang)}.viec-tiep-x{margin:0 0 12px;font-size:1.05rem}.chang-nav{display:grid;gap:10px;margin:24px 0 0}.chang-nav a{display:grid;gap:2px;padding:12px 16px;min-height:56px;border:1px solid var(--vien);border-radius:12px;text-decoration:none;color:var(--navy-dam);background:#fff}.chang-nav a small{color:var(--chu-phu);font-weight:600}.chang-nav-s{text-align:right}@media (min-width: 700px){.chang-nav{grid-template-columns:1fr 1fr}}.dang-bien-soan{padding:14px 16px;border:1px dashed var(--vien);border-radius:12px;color:var(--chu-phu)}.lo-trinh{padding-bottom:40px}.lt-muc{position:sticky;top:0;z-index:5;display:flex;gap:8px;overflow-x:auto;padding:8px 0;margin:0 0 18px;background:var(--nen);scrollbar-width:none}.lt-muc a{flex:none;display:grid;align-content:center;min-height:44px;padding:4px 14px;border:1px solid var(--vien);border-radius:999px;background:#fff;text-decoration:none;color:var(--navy-dam);font-weight:700;font-size:.9rem;line-height:1.2}.lt-muc a small{font-weight:500;color:var(--chu-phu);font-size:.72rem}.lt-chang{scroll-margin-top:70px;margin:0 0 28px;padding:18px 16px;border:1px solid var(--vien);border-radius:16px;background:#fff}.lt-dau{display:grid;gap:4px;margin-bottom:8px}.lt-dau h2{margin:0;font-size:1.3rem}.lt-dau h2 a{text-decoration:none;color:var(--navy-dam)}.lt-so{font-size:.8rem;font-weight:800;color:var(--cam-dam);text-transform:uppercase;letter-spacing:.04em}.lt-meta{margin:0;font-size:.88rem;color:var(--chu-phu)}.lt-intro{margin:0 0 12px;color:var(--chu-phu)}.lt-ket{margin:0 0 12px;padding:12px 14px;border-radius:12px;background:var(--cam-nhat)}.lt-bai{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:2px}.lt-bai li{display:flex;gap:6px;align-items:flex-start;padding:2px 0}.lt-tru .lt-nd a{font-weight:800}.lt-tich{position:relative;flex:none;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer}.lt-tich input{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;opacity:0;margin:0;cursor:pointer}.lt-hop{width:22px;height:22px;border:2px solid var(--navy-dam);border-radius:6px;background:#fff;display:block}.lt-tich input:checked+.lt-hop{background:var(--navy-dam);box-shadow:inset 0 0 0 3px #fff}.lt-tich input:focus-visible+.lt-hop{outline:3px solid var(--cam);outline-offset:2px}.lt-nd{display:grid;gap:0;padding:10px 0;min-width:0}.lt-nd a{text-decoration:none;color:var(--chu)}.lt-nd a:hover{color:var(--cam-dam)}.lt-viec{margin:0;padding:10px 14px;border-left:4px solid var(--cam);background:var(--kem);border-radius:0 10px 10px 0}.lt-khoa{margin:32px 0 0}@media (min-width: 900px){.lt-chang{padding:24px 28px}}.prose figure.hinh{margin:28px 0}.prose figure.hinh img{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--vien);background:var(--cam-nhat)}.prose figure.hinh figcaption{margin-top:8px;font-size:.86rem;color:var(--chu-phu)}.ph-the{display:grid;gap:6px;padding:16px;border:1px solid var(--vien);border-radius:14px;background:#fff}.ph-nut{display:flex;align-items:center;min-height:44px}.buoc-ghi{margin:14px 0 0;color:var(--chu-phu);font-size:.95rem}.so-gia{display:grid;gap:14px}@media (min-width: 760px){.so-gia{grid-template-columns:1fr 1fr}}.so-gia-col{border:1px solid var(--vien);border-radius:14px;padding:18px;background:#fff}.so-gia-on{border:2px solid var(--navy-dam)}.so-gia-h{font-weight:800;color:var(--navy-dam);margin:0 0 10px}.so-gia-col ul{list-style:none;margin:0;padding:0}.so-gia-col li{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--vien);color:var(--chu-phu);font-size:.95rem}.so-gia-sum{display:flex;justify-content:space-between;gap:10px;margin:10px 0 6px;font-size:1.05rem}.so-gia-sum b{color:var(--do);font-size:1.3rem}.quotes-doc{grid-template-columns:1fr!important}.bk-ket{margin-top:40px;padding:24px;border-radius:18px;background:var(--giay);display:grid;gap:14px}.bk-ket form{margin:0}.sticky-buy{display:none}@media (max-width: 999px){.sticky-buy{display:flex;gap:12px;align-items:center;justify-content:space-between;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--vien);box-shadow:0 -4px 16px #0f2a4a14;padding:10px 16px calc(10px + env(safe-area-inset-bottom))}.sticky-buy form{margin:0}.sticky-price b{color:var(--do);font-weight:800;font-size:1.2rem}.sticky-price s{margin-left:8px;color:var(--chu-phu);font-size:.85rem}.ban-khoa .foot{padding-bottom:110px}.ban-khoa .float-zalo{display:none}}.author{display:grid;grid-template-columns:96px 1fr;gap:18px;align-items:center;padding:18px;border:1px solid var(--vien);border-radius:16px;background:#fff;margin-bottom:14px}.author img{width:96px;height:96px;border-radius:50%;object-fit:cover;background:var(--giay);color:transparent}.author-n{font-weight:800;color:var(--navy-dam);margin:0 0 4px;font-size:1.1rem}.author-l{margin:0;padding-left:1.1em;color:var(--chu-phu);font-size:.95rem}.author-s{margin:6px 0 0;font-size:.9rem;color:var(--chu-phu)}@media (max-width: 480px){.author{grid-template-columns:1fr;text-align:center}.author img{margin:0 auto}.author-l{text-align:left}}.cta-k{display:grid;gap:14px;padding:22px;border-radius:16px;margin:28px 0;align-items:center}@media (min-width: 760px){.cta-k{grid-template-columns:1fr auto}}.cta-giay{background:var(--giay)}.cta-navy{background:var(--navy-dam);color:#fff}.cta-cam{background:var(--cam);color:#fff}.cta-t{font-weight:800;font-size:1.1rem;margin:0 0 4px}.cta-x{margin:0;opacity:.9}.cta-navy .cta-t,.cta-cam .cta-t{color:#fff}.khoa-le{list-style:none;margin:0;padding:0;display:grid;gap:12px}.khoa-le li{display:grid;gap:12px;padding:16px 18px;border:1px solid var(--vien);border-radius:14px;background:#fff}@media (min-width: 700px){.khoa-le li{grid-template-columns:1fr auto;align-items:center}}.khoa-le li a{text-decoration:none;color:var(--navy-dam)}.khoa-le-r{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.khoa-free{margin-top:28px;display:grid;gap:14px;padding:22px;border-radius:16px;background:var(--giay);align-items:center}@media (min-width: 760px){.khoa-free{grid-template-columns:1fr auto}}.tron-bo{border:2px solid var(--navy-dam);background:#fff}.bao-gom{display:grid;gap:24px;align-items:center;padding:26px;border:2px solid var(--navy-dam);border-radius:20px;background:#fff}@media (min-width: 900px){.bao-gom{grid-template-columns:1fr 260px}}.bao-gom p{color:var(--chu-phu)}.bao-gom-so{display:grid;gap:2px;padding:20px;border-radius:14px;background:var(--giay);text-align:center}.bao-gom-so span{font-size:.85rem;color:var(--chu-phu)}.bao-gom-so b{font-size:1.5rem;color:var(--navy-dam);margin-bottom:10px}.bao-gom-so .bao-gom-con{color:var(--do);margin-bottom:0}.chu-de{list-style:none;margin:0;padding:0;display:grid;gap:12px}@media (min-width: 640px){.chu-de{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1000px){.chu-de{grid-template-columns:repeat(3,1fr)}}.chu-de a{display:grid;gap:6px;padding:18px;border:1px solid var(--vien);border-left:4px solid var(--cam);border-radius:12px;text-decoration:none;color:var(--chu);background:#fff}.chu-de a:hover{border-color:var(--navy)}.chu-de b{color:var(--navy-dam);font-size:1.05rem}.chu-de span{color:var(--chu-phu);font-size:.92rem}.chu-de small{color:var(--chu-phu)}.bai-tru{display:grid;gap:4px;padding:20px 22px;margin:0 0 24px;border:2px solid var(--navy-dam);border-radius:16px;text-decoration:none;color:var(--chu);background:var(--kem)}.bai-tru b{color:var(--navy-dam);font-size:1.15rem}.bai-tru span{color:var(--chu-phu);font-size:.95rem}.bai-meta{color:var(--chu-phu);font-size:.92rem;margin:-6px 0 18px}.bai-meta a{font-weight:600}.bai h1{font-size:clamp(1.6rem,4.4vw,2.4rem)}.muc-luc{border:1px solid var(--vien);border-radius:12px;padding:0 16px;margin:0 0 22px;background:var(--giay)}.muc-luc summary{padding:12px 0;font-weight:700;cursor:pointer;color:var(--navy-dam)}.muc-luc-ds{margin:0;padding:0 0 12px;list-style:none}.muc-luc-ds li{padding:3px 0}.muc-luc-ds a{text-decoration:none}.muc-luc-ben{display:none}.aside-in{display:grid;gap:16px}@media (min-width: 1000px){.muc-luc{display:none}.muc-luc-ben{display:block}.muc-luc-ben .muc-luc-ds{padding-top:8px;padding-bottom:0;font-size:.92rem}.aside .aside-in{position:sticky;top:84px}.aside .box{position:static}}.tong-quan{margin:24px 0;padding:14px 18px;border-left:4px solid var(--navy);background:var(--navy-nhat);border-radius:0 12px 12px 0;display:grid;gap:2px}.the-lt{margin:20px 0}.the-lt .ve-o-t{flex:1}.bai-faq-h{margin-top:36px}.bai .author{margin-top:28px}.tac-gia{display:grid;gap:24px;align-items:start}@media (min-width: 800px){.tac-gia{grid-template-columns:200px 1fr;gap:36px}}.tac-gia img{width:200px;height:200px;border-radius:50%;object-fit:cover;background:var(--giay);color:transparent;border:4px solid var(--cam-nhat)}.tac-gia h1{margin-bottom:4px}.app-hero{display:grid;gap:24px;align-items:center;padding:12px 0 36px}@media (min-width: 900px){.app-hero{grid-template-columns:1fr auto}}.app-shots{display:flex;gap:10px}.app-shots img{width:150px;height:auto;border-radius:14px;border:1px solid var(--vien)}.app-muc{list-style:none;margin:0;padding:0;display:grid;gap:12px}@media (min-width: 700px){.app-muc{grid-template-columns:repeat(2,1fr)}}.app-muc li{display:grid;gap:4px;padding:16px 18px;border:1px solid var(--vien);border-radius:12px}.app-muc b{color:var(--navy-dam)}.app-muc span{color:var(--chu-phu);font-size:.95rem}.mag-k,.h-kicker{display:flex;align-items:center;gap:10px;margin:0 0 10px;font-weight:700;font-size:.92rem;color:var(--cam-dam);letter-spacing:.01em}.mag-k:before,.h-kicker i{content:"";width:26px;height:3px;border-radius:2px;background:var(--cam);flex:none}.h-kicker i{display:block}.hl{background:linear-gradient(transparent 62%,#ea621c47 62%);padding:0 .08em}.h-hero h1{max-width:16ch}.h-hero-in{gap:32px}.h-who a{font-weight:600}.mag-head{max-width:760px;padding:8px 0 26px}.mag-head h1{margin-bottom:12px}.mag-lead{font-size:1.1rem;color:var(--chu-phu);line-height:1.65;margin:0}.mag-h2{margin:40px 0 16px;padding-top:12px;border-top:3px solid var(--navy-dam);font-size:clamp(1.2rem,3vw,1.5rem)}.sec-head .mag-k{margin-bottom:8px}.the-k{display:inline-flex;align-items:center;min-height:44px;align-self:flex-start;padding:3px 14px;border-radius:999px;background:var(--cam-nhat);color:var(--cam-dam);font-weight:700;font-size:.8rem;text-decoration:none;line-height:1.5}a.the-k:hover{background:var(--cam);color:#fff}.the-m{margin-top:auto;padding-top:6px;font-size:.82rem;color:var(--chu-phu)}.bai-the h3{font-size:1.1rem;line-height:1.35}.bai-the h3 a:hover{color:var(--cam-dam)}.bai-the{border-top:3px solid var(--navy-dam);border-radius:12px}.tn-card{background:#fff;border:1px solid var(--vien);border-top:4px solid var(--cam);border-radius:20px;padding:22px 20px 20px;box-shadow:var(--bong-lon);margin:0;min-width:0}.tn-t{font-size:1.25rem;margin:0 0 4px}.tn-sub{margin:0 0 14px;color:var(--chu-phu);font-size:.92rem}.tn-prog{margin:0 0 8px;color:var(--navy-dam);font-size:.92rem}.tn-prog[hidden],.tn-back[hidden]{display:none}.tn-prog-t{display:flex;align-items:center;justify-content:space-between;font-weight:700}.tn-bar{height:6px;margin-top:4px;border-radius:3px;background:var(--vien);overflow:hidden}.tn-bar i{display:block;height:100%;width:0;background:var(--cam);border-radius:3px;transition:width .25s}.tn-back{background:none;border:0;color:var(--navy);font:inherit;font-weight:600;text-decoration:underline;cursor:pointer;padding:6px 0;min-height:44px}.tn-q{border:0;border-top:1px solid var(--vien);margin:0;padding:12px 0 10px;min-width:0}.tn-q legend{float:left;width:100%;padding:0;font-weight:600;line-height:1.4;font-size:.98rem;color:var(--chu)}.tn-q legend+*{clear:both}.tn-n{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;margin-right:8px;border-radius:50%;background:var(--navy-dam);color:#fff;font-size:.8rem;font-weight:800;vertical-align:1px}.tn-opts{display:flex;gap:8px;margin-top:10px}.tn-opts label{flex:1;position:relative;cursor:pointer}.tn-opts input{position:absolute;opacity:0;top:0;right:0;bottom:0;left:0;width:100%;height:100%;margin:0;cursor:pointer}.tn-opts span{display:flex;align-items:center;justify-content:center;min-height:44px;border:2px solid var(--vien);border-radius:12px;font-weight:800;color:var(--navy-dam);background:#fff;transition:.12s}.tn-opts label:hover span{border-color:var(--navy)}.tn-opts input:checked+span{background:var(--navy);border-color:var(--navy);color:#fff}.tn-opts input:focus-visible+span{outline:3px solid var(--cam-sang);outline-offset:2px}.tn-ends{display:flex;justify-content:space-between;margin:6px 0 0;font-size:.76rem;color:var(--chu-phu)}.tn-live{margin:4px 0 12px}.tn-live:not(:empty){padding:12px 14px;background:var(--cam-nhat);border-left:3px solid var(--cam);border-radius:0 10px 10px 0;font-size:.92rem}.tn-live p{margin:0}.tn-go{margin-top:6px}.tn-alt{margin:12px 0 0;text-align:center;font-size:.9rem;color:var(--chu-phu)}.tn-js .tn-q:not(.on){display:none}.tn-js .tn-q{border-top:0}.tn-js .tn-q legend{font-size:1.08rem}.tn-js .tn-opts span{min-height:52px}.tn-js .tn-go{display:none}.tn-js.tn-xong .tn-go{display:inline-flex}.tn-xong .tn-q,.tn-xong .tn-prog,.tn-xong .tn-live{display:none}@media (min-width: 760px){.tn-q{padding:9px 0 8px}.tn-opts{margin-top:8px}.tn-opts span{min-height:38px}.tn-ends{display:none}.tn-js .tn-opts span{min-height:48px}.tn-js .tn-ends{display:flex}}.tn-gon .tn-q{padding:8px 0}.tn-kq{margin:6px 0 14px}.tn-kq-t{margin:0 0 10px;font-weight:800;color:var(--navy-dam);font-size:1.05rem}.tn-kq-ds{display:grid;gap:10px}.tn-kq-the{padding:14px 16px;border:1px solid var(--vien);border-left:4px solid var(--cam);border-radius:0 12px 12px 0;background:var(--cam-nhat)}.tn-kq-the p{margin:0 0 6px}.tn-kq-n{display:flex;align-items:center;gap:10px;color:var(--navy-dam);font-size:1.05rem}.tn-kq-ma{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--navy-dam);color:#fff;font-weight:800}.tn-kq-d,.tn-kq-m{font-size:.92rem}.tn-kq-l{display:inline-flex;align-items:center;min-height:44px;font-weight:700;color:var(--navy)}.tn-moi{display:none;margin:4px 0 14px;padding:16px;border:1px solid var(--vien);border-radius:12px;background:#fff}.tn-xong .tn-moi,.tn-moi-hien{display:block}.tn-moi p{margin:0 0 8px}.tn-moi-t{font-weight:800;color:var(--navy-dam);font-size:1.05rem}.tn-moi-d{font-size:.93rem}.tn-moi-g b{font-size:1.25rem;color:var(--cam-dam)}.tn-moi-g s{color:var(--chu-phu);margin-left:6px}.tn-moi-nut{display:flex;flex-wrap:wrap;gap:10px}.tn-moi-nut .btn{flex:1 1 160px}.tn-kq-g{margin:12px 0 2px;font-size:.88rem;color:var(--chu-phu)}.tn-nudge{display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;justify-content:space-between;margin:28px 0;padding:20px 22px;border-radius:16px;background:var(--navy-nhat);border:1px solid #cddcf0}.tn-nudge>div:first-child{display:grid;gap:4px;flex:1 1 320px}.tn-nudge b{color:var(--navy-dam);font-size:1.1rem}.tn-nudge span{color:var(--chu-phu);font-size:.95rem}.tn-nudge .row{display:flex;gap:10px;flex-wrap:wrap}.tn-nudge-gon{display:grid;margin:0}.tn-nudge-gon .row .btn{width:100%}.myth{list-style:none;margin:0;padding:0;display:grid;gap:14px}@media (min-width: 640px){.myth{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1100px){.myth{grid-template-columns:repeat(4,1fr)}}.myth li{display:flex;flex-direction:column;gap:8px;padding:20px 18px;border:1px solid var(--vien);border-top:4px solid var(--do);border-radius:14px;background:#fff}.myth-k{font-size:.78rem;font-weight:700;color:var(--do)}.myth-q{margin:0;font-size:1.08rem;font-weight:700;line-height:1.4;color:var(--navy-dam)}.myth-a{margin:0;color:var(--chu-phu);font-size:.95rem;flex:1}.myth a{font-weight:700;text-decoration:none;color:var(--navy)}.myth a:hover{color:var(--cam-dam)}.buoc{list-style:none;margin:0;padding:0;border-top:3px solid var(--navy-dam)}.buoc li{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;padding:20px 0;border-bottom:1px solid var(--vien);align-items:start}@media (min-width: 860px){.buoc li{grid-template-columns:76px 1fr 230px;gap:24px;align-items:center}}.buoc-so{font-size:2.1rem;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--cam);letter-spacing:-.02em}.buoc-nd h3{margin:0 0 4px;font-size:1.15rem}.buoc-nd h3 a{text-decoration:none;color:var(--navy-dam)}.buoc-nd h3 a:hover{color:var(--cam-dam)}.buoc-nd p{margin:0;color:var(--chu-phu);font-size:.95rem}.buoc-ph{grid-column:2;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline}@media (min-width: 860px){.buoc-ph{grid-column:auto;flex-direction:column;align-items:flex-start;gap:4px}}.buoc-n{font-weight:700;font-size:.92rem;color:var(--navy)}.buoc-n-0{color:var(--chu-phu);font-weight:600}.buoc-k{font-size:.82rem;color:var(--chu-phu)}.soc{list-style:none;display:flex;flex-wrap:wrap;gap:8px 10px;margin:14px 0;padding:0}.foot .soc li{padding:0}.soc a{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:6px 14px 6px 8px;border-radius:999px;border:1px solid rgba(255,255,255,.22);color:#fff;text-decoration:none;font-weight:600;font-size:.9rem}.soc a:hover{background:#ffffff1a}.soc-i{display:inline-flex;width:26px;height:26px;border-radius:50%;background:#ffffff24;align-items:center;justify-content:center}.soc-i svg{width:15px;height:15px;fill:currentColor}.soc b{font-weight:800;color:var(--cam-sang)}.soc-the{display:grid;gap:14px;margin-top:24px}@media (min-width: 760px){.soc-the{grid-template-columns:1fr 1fr}}.soc-card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:22px;border-radius:18px;text-decoration:none;color:var(--chu);border:1px solid var(--vien);background:#fff}.soc-card b{font-size:1.5rem;color:var(--navy-dam);letter-spacing:-.01em;line-height:1.2}.soc-card>span:not(.soc-card-k){color:var(--chu-phu);font-size:.95rem;flex:1}.soc-card i{margin-top:8px;font-style:normal}.soc-card-k{font-weight:700;font-size:.88rem;color:var(--cam-dam)}.soc-card-tt{background:var(--dem);border-color:var(--dem)}.soc-card-tt b{color:#fff}.soc-card-tt>span:not(.soc-card-k){color:#c9d6ea}.soc-card-tt .soc-card-k{color:var(--cam-sang)}.soc-card-fb{border-top:4px solid var(--navy)}.soc-card-fb i{background:var(--navy);color:#fff}.soc-card:hover{box-shadow:var(--bong-lon);transform:translateY(-2px);transition:.15s}.theo-doi{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin:28px 0 0;padding:16px 18px;border-radius:14px;background:var(--giay);border:1px solid var(--vien)}.theo-doi-t{margin:0;font-weight:700;color:var(--navy-dam)}.theo-doi-l{display:flex;flex-wrap:wrap;gap:8px 10px}.theo-doi-l a{padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--vien);text-decoration:none;color:var(--chu);font-size:.92rem}.theo-doi-l a:hover{border-color:var(--cam)}.theo-doi-l span{color:var(--chu-phu)}.vid-nb{margin-top:24px}.vid-ds{display:flex;flex-wrap:wrap;gap:10px}.vid-khung{width:100%;max-width:340px;aspect-ratio:9 / 16;border:0;border-radius:14px;background:var(--giay)}.about-n{margin:0 0 6px}.foot-grid{display:grid;gap:28px}@media (min-width: 760px){.foot-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1060px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}}.foot-about p{max-width:38ch}.foot-addr{font-size:.85rem;color:#9fb3d1}.foot h3{margin-bottom:8px}.trong-khoa{margin:32px 0;padding:22px;border:1px solid #cddcf0;border-left:5px solid var(--navy);border-radius:0 16px 16px 0;background:var(--navy-nhat)}.tk-t{font-size:1.2rem;margin:0 0 12px}.tk-ds{list-style:none;margin:0 0 12px;padding:0}.tk-ds li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:2px 14px;padding:9px 0;border-top:1px solid #cddcf0}.tk-ds a{font-weight:600;text-decoration:none}.tk-ds b{color:var(--cam-dam)}.tk-ds span{color:var(--chu-phu);font-size:.88rem}.tk-x{color:var(--chu)}.trong-khoa .row{display:flex;flex-wrap:wrap;gap:10px}.nguon{margin:28px 0 0;padding:14px 0 0;border-top:1px solid var(--vien);font-size:.9rem;color:var(--chu-phu)}.nguon-t{font-size:1rem;margin:0 0 6px}.nguon ul{margin:0;padding-left:1.2em}.nguon li{padding:2px 0;overflow-wrap:anywhere}.bat-dau-ds{list-style:none;margin:0;padding:0;display:grid;gap:12px}@media (min-width: 640px){.bat-dau-ds{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1000px){.bat-dau-ds{grid-template-columns:repeat(3,1fr)}}.bat-dau-ds a{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:6px;height:100%;padding:18px 18px 16px;border:1px solid var(--vien);border-radius:14px;background:#fff;text-decoration:none;color:var(--chu)}.bat-dau-ds a:hover{border-color:var(--cam);box-shadow:var(--bong)}.bat-dau-ds b{color:var(--navy-dam);font-size:1.05rem;line-height:1.35}.bat-dau-so{font-size:1.7rem;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.2px var(--cam)}.bat-dau-d{color:var(--chu-phu);font-size:.9rem}.bat-dau{margin-bottom:8px}.bai-dau{margin:0 0 20px}.bai-dau h1{margin:12px 0 10px}.bai-deck{font-size:1.15rem;line-height:1.6;color:var(--chu-phu);margin:0 0 14px}.bai .prose{font-size:1.06rem;line-height:1.8}.bai .prose h2{padding-top:.6em;border-top:1px solid var(--vien);margin-top:2em}.bai .prose h2:first-child{border-top:0;margin-top:0}.tong-quan{margin:26px 0;padding:14px 18px;border-left:4px solid var(--cam);background:var(--cam-nhat);border-radius:0 12px 12px 0;display:grid;gap:2px}.tong-quan a{font-weight:700}.table-wrap{overflow-x:auto;margin:16px 0;-webkit-overflow-scrolling:touch}.table-wrap table{display:table;min-width:460px;width:100%}.prose .table-wrap table{display:table;overflow:visible}.prose th{background:var(--giay);text-align:left;color:var(--navy-dam)}.doc-ds{list-style:none;margin:0;padding:0;display:grid;gap:10px}@media (min-width: 760px){.doc-ds{grid-template-columns:repeat(3,1fr)}}.doc-ds a{display:grid;gap:6px;height:100%;padding:16px;border:1px solid var(--vien);border-radius:14px;background:#fff;text-decoration:none;color:var(--chu)}.doc-ds a:hover{border-color:var(--cam)}.doc-ds b{color:var(--navy-dam)}.doc-ds span{color:var(--chu-phu);font-size:.9rem}.hex-sec{display:grid;gap:24px;align-items:center;margin:36px 0;padding:26px 22px;border-radius:20px;background:var(--giay)}@media (min-width: 860px){.hex-sec{grid-template-columns:1fr 1fr;padding:32px;gap:40px}}.dmp{border:1px solid var(--vien);border-radius:14px;overflow:hidden;background:#fff}.dmp-h{display:none}.dmp-r{display:grid;gap:10px;padding:16px;border-top:1px solid var(--vien)}.dmp-r ul{margin:0 0 4px;padding-left:1.1em}.dmp-r li{padding:2px 0}.dmp-r>b a{text-decoration:none;color:var(--navy-dam);font-size:1.02rem}.dmp-l{display:block;margin-bottom:4px;font-size:.76rem;font-weight:700;color:var(--cam-dam)}@media (min-width: 860px){.dmp-h,.dmp-r{grid-template-columns:190px 1.2fr 1.2fr;gap:24px}.dmp-h{display:grid;padding:12px 16px;background:var(--navy-dam);color:#fff;font-weight:700;font-size:.88rem}.dmp-h+.dmp-r{border-top:0}.dmp-l{display:none}}.spot-tang{margin:0 0 10px;color:var(--navy-dam)}.consult-up{margin:14px 0 0;padding:10px 14px;border-radius:10px;background:#ffffff1a;color:#fff}.consult-up b{color:var(--cam-sang)}.sec-qua{background:var(--cam-nhat);border-top:1px solid #f6d9c6;border-bottom:1px solid #f6d9c6;padding:26px 0}.qua-in{display:grid;gap:14px;align-items:center}@media (min-width: 900px){.qua-in{grid-template-columns:1fr auto;gap:40px}}.sec-qua h2{font-size:1.3rem;margin-bottom:6px}.sec-qua p{margin:0;color:var(--chu-phu);max-width:62ch}.qua-r{display:grid;gap:10px;justify-items:start}.qua-r a:not(.chip-ve){font-weight:700}.final-app{margin:22px 0 0;font-size:.92rem;color:#ffffffeb}.final-app a{color:#fff}.lt-row-main{min-width:0}.soan-thao-thanh{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px;padding:8px;border:1px solid var(--vien);border-radius:10px;background:var(--giay)}.soan-thao-thanh[hidden],.soan-thao[hidden],textarea[data-html][hidden]{display:none!important}.soan-thao-thanh .st-nut{min-height:36px;padding:6px 10px;font-size:.86rem;border-radius:8px;color:#0d2b5e;border-color:#c9d4e4;background:#fff}.soan-thao-thanh .st-nut:hover{color:#f57c00;border-color:#f57c00;background:#fff7ef}.soan-thao{min-height:420px;padding:14px 16px;border:1px solid var(--vien);border-radius:10px;background:#fff;color:var(--chu);overflow-wrap:anywhere}.soan-thao:focus{outline:3px solid rgba(245,124,0,.25);border-color:#f57c00}.soan-thao p{margin:0 0 .9em}.soan-thao h2{font-size:1.35rem;margin:1.1em 0 .5em;color:#0d2b5e}.soan-thao h3{font-size:1.15rem;margin:1em 0 .4em;color:#0d2b5e}.soan-thao blockquote{margin:14px 0;padding:10px 14px;border-left:4px solid #F57C00;background:var(--cam-nhat);border-radius:8px}.soan-thao ul,.soan-thao ol{margin:0 0 .9em;padding-left:1.4em}.soan-thao table{width:100%;border-collapse:collapse;margin:12px 0}.soan-thao th,.soan-thao td{border:1px solid var(--vien);padding:8px;text-align:left;vertical-align:top}.soan-thao th{background:var(--giay);color:#0d2b5e}.soan-thao img,.soan-thao iframe{max-width:100%}.soan-thao iframe{width:100%;aspect-ratio:16 / 9;height:auto}.soan-thao figure{margin:14px 0}.soan-thao figcaption{font-size:.9rem;color:var(--chu-phu)}.seo-diem{display:grid;gap:8px}.seo-diem>b{color:#0d2b5e}.seo-diem ul{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:.9rem}.seo-diem li.dat{color:var(--xanh-ok)}.seo-diem li.chua{color:#d32f2f}@media (max-width: 480px){.soan-thao-thanh{gap:4px;padding:6px}.soan-thao-thanh .st-nut{min-height:32px;padding:5px 8px;font-size:.8rem}.soan-thao{min-height:320px;padding:10px 12px}}.dc-ket-qua{margin:12px 0}.dc-ket-qua .dc-tom-tat{margin:0 0 10px;font-weight:600}.dc-ket-qua .dc-loi-ds{margin:8px 0 0;padding-left:20px;color:var(--do, #b3261e);font-size:.92rem;max-height:260px;overflow:auto}.dc-ket-qua .dc-ok{color:#0e5e46;font-weight:700}.dc-ket-qua .dc-bao-loi{color:var(--do, #b3261e);font-weight:700}.dc-ket-qua .table-wrap table{min-width:720px;font-size:.88rem}.dc-bo-loi{display:inline-flex;gap:8px;align-items:center}.dc-bo-loi[hidden],[data-dc-ghi][hidden]{display:none}