/* Hoang Anh Group — design system 2026.10 */
:root{--red:#bd202b;--ink:#152c39;--muted:#60717b;--cream:#f4f6f8;--line:#e2e8ee;--radius:18px}html{scroll-padding-top:110px}body{background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.75;margin:0}*{box-sizing:border-box}img{max-width:100%;height:auto}a{text-decoration:none;color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d89218;outline-offset:4px}.wrap{width:100%;max-width:1240px;margin:auto;padding-left:32px;padding-right:32px}.ha-header{position:sticky;top:0;z-index:50;background:#fffffff7;border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.ha-nav{height:88px;display:flex;align-items:center;justify-content:space-between;gap:28px}.ha-brand{display:flex;align-items:center;gap:12px;line-height:1.2}.ha-monogram{width:48px;height:48px;display:grid;place-items:center;background:var(--red);color:white;border-radius:13px;font-size:24px;font-weight:800}.ha-brand strong{display:block;font-size:18px;letter-spacing:.025em}.ha-brand small{display:block;font-size:11px;color:var(--muted);margin-top:6px;letter-spacing:.08em}.ha-links{display:flex;gap:24px;font-size:14px;font-weight:600}.ha-links a:hover{color:var(--red)}.ha-header-cta{display:flex;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border:1px solid var(--red);border-radius:10px;color:#fff;background:var(--red);font-size:14px;line-height:1.5;font-weight:700;cursor:pointer}.btn:hover{background:#971923;border-color:#971923}.btn.light{background:white;color:var(--ink);border-color:var(--line)}.btn.zalo{background:#075da8;border-color:#075da8;color:#fff}.ha-menu{display:none;background:white;border:1px solid var(--line);border-radius:9px;padding:10px;font:inherit}.skip-link{position:fixed;top:-100px;background:white;z-index:100;padding:10px}.skip-link:focus{top:0}.quick-search{padding:20px 0!important;background:#f4f6f8!important;border-bottom:1px solid var(--line)}.quick-search .quick-search-form{display:grid;grid-template-columns:minmax(0,1fr) 260px auto;align-items:end;gap:12px;padding:0!important;background:none!important;border:0!important}.quick-search label{text-align:left!important;color:var(--muted);font-size:12px;font-weight:700}.quick-search input,.quick-search select{display:block;width:100%;height:48px;border:1px solid #d5dee5;border-radius:10px;padding:0 14px;font:14px Arial;background:white;color:var(--ink);margin-top:6px}.quick-search button{height:48px}.ha-hero{background:#fff;padding:68px 0 64px}.ha-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.ha-kicker{font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:700;color:var(--red);margin-bottom:18px;display:block}.ha-hero h1{font-size:clamp(38px,4.3vw,62px);line-height:1.12;letter-spacing:-.045em;margin:0 0 24px}.ha-hero h1 span{color:var(--red)}.ha-hero p{font-size:17px;color:var(--muted);max-width:510px}.ha-hero figure{margin:0;position:relative}.ha-hero img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px}.ha-hero figcaption{font-size:11px;color:var(--muted);margin-top:10px}.ha-tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.ha-tags span{background:#f4f6f8;border:1px solid var(--line);border-radius:30px;padding:7px 12px;font-size:12px}.ha-section{padding:64px 0}.ha-section.shade{background:#f4f6f8}.ha-section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}.ha-section-head h2{font-size:34px;line-height:1.25;max-width:700px;letter-spacing:-.025em;margin:0}.ha-section-head p{color:var(--muted);max-width:480px;margin:10px 0 0}.ha-section-head>a{font-size:14px;color:var(--red);font-weight:700;white-space:nowrap}.ha-service-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.ha-service{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}.ha-service .ha-index{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:11px;background:#fbedee;color:var(--red);font-size:14px;font-weight:700}.ha-service h3{font-size:20px;line-height:1.35;margin:18px 0 10px}.ha-service p{font-size:14px;color:var(--muted);margin:0}.ha-service a{display:inline-block;color:var(--red);font-size:13px;font-weight:700;margin-top:18px}.ha-service:hover{border-color:#bc8e92;box-shadow:0 10px 30px #152c3909}.ha-principles{display:grid;grid-template-columns:1fr 1fr;gap:48px}.ha-principles h2{font-size:34px;line-height:1.25}.ha-principles p{color:var(--muted)}.ha-point{padding:18px 0;border-bottom:1px solid var(--line)}.ha-point strong{display:block;font-size:17px}.ha-point p{font-size:14px;margin:6px 0}.ha-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.ha-step{border-top:2px solid var(--red);padding:20px 0}.ha-step b{font-size:28px;color:var(--red)}.ha-step h3{font-size:17px}.ha-step p{font-size:14px;color:var(--muted)}.latest-posts{padding:40px 0!important;background:#f4f6f8!important;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.latest-posts .wrap>div{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.latest-posts h2{font-size:26px;margin:0}.latest-posts ol{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:0 32px!important;padding:0!important;list-style:none;counter-reset:recent}.latest-posts li{position:relative;padding:16px 0 16px 38px!important;min-width:0;border-top:1px solid #dde5eb;counter-increment:recent}.latest-posts li:before{content:counter(recent,decimal-leading-zero);position:absolute;left:0;top:16px;color:#9b5360;font-size:13px;font-weight:700}.latest-posts li>a{display:block;font-size:15px;font-weight:700;line-height:1.5}.latest-posts time,.latest-posts .date-unavailable{display:block;font-size:12px;color:var(--muted);margin-top:7px}.topic-block{padding:28px!important;border:1px solid var(--line)!important;border-radius:20px!important;background:white!important;margin:0 0 32px!important}.topic-top{display:flex;align-items:start;justify-content:space-between;gap:20px;margin-bottom:24px}.topic-top h2{font-size:25px;line-height:1.35;margin:0;max-width:800px}.topic-top p{font-size:14px;color:var(--muted);margin:8px 0 0}.topic-top>a{padding:9px 13px;border-radius:8px;background:#f4f6f8;color:var(--ink);font-size:12px;white-space:nowrap}.topic-grid{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;gap:20px!important}.article-card{background:white;border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;display:flex;flex-direction:column;min-width:0;box-shadow:none!important}.article-card>a{display:block;overflow:hidden}.article-card img{display:block;width:100%;height:auto!important;aspect-ratio:4/3;object-fit:cover;transition:transform .25s}.article-card:hover img{transform:scale(1.025)}.article-card>div{padding:20px!important;display:flex;flex-direction:column;flex:1}.article-card small{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.035em;color:var(--red)}.article-card :is(h2,h3){font-size:19px!important;line-height:1.4!important;margin:10px 0!important;font-weight:700}.article-card p{font-size:13px;line-height:1.65;color:var(--muted)}.article-card>div>p:not(.publication-info){display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 16px}.article-card .publication-info{font-size:11px!important;line-height:1.6;margin:auto 0 12px!important;padding-top:12px;border-top:1px solid var(--line);color:var(--muted)!important}.article-card>div>a:last-child{color:var(--red);font-size:13px;font-weight:700}.publication-info time{display:block}.date-unavailable{color:#697781;font-style:normal}.ha-contact-panel{background:var(--ink);color:white;border-radius:24px;padding:40px;display:grid;grid-template-columns:1.2fr 1fr;gap:48px}.ha-contact-panel h2{font-size:34px;color:white;line-height:1.3}.ha-contact-panel p{color:#cfdae1}.ha-contact-panel .ha-contact-box{background:#ffffff0d;border:1px solid #ffffff28;border-radius:16px;padding:26px}.ha-contact-panel .ha-contact-box a.ha-phone{display:block;color:white;font-size:30px;font-weight:800}.ha-faq{display:grid;grid-template-columns:1fr 1.4fr;gap:60px}.ha-faq h2{font-size:34px}.ha-faq details{background:#fff;padding:19px 0;border-bottom:1px solid var(--line)}.ha-faq summary{font-size:16px;font-weight:700;cursor:pointer}.ha-faq p{font-size:14px;color:var(--muted)}.ha-footer{background:#102330;color:#c5d0d9;padding:48px 0 100px}.ha-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:50px;font-size:13px}.ha-footer h3{font-size:15px;color:white}.ha-footer p{margin:8px 0}.ha-footer a{display:block;margin:8px 0}.ha-footer .ha-copyright{font-size:12px;border-top:1px solid #ffffff20;padding-top:20px;margin-top:30px}.ha-float{position:fixed;right:20px;bottom:18px;display:flex;gap:8px;z-index:60;box-shadow:0 6px 24px #10233015;border-radius:12px}.article-hero{padding:46px 0!important;background:#f4f6f8!important;border-bottom:1px solid var(--line)}.article-hero>.wrap> a{font-size:13px;color:var(--muted)}.article-hero .eyebrow{margin:20px 0 14px;color:var(--red);font-size:12px;letter-spacing:.07em}.article-hero h1{font-size:clamp(30px,3.3vw,46px)!important;line-height:1.25!important;letter-spacing:-.03em!important;max-width:1000px;margin:12px 0 20px!important}.article-hero .publication-info{font-size:13px!important;display:flex;flex-wrap:wrap;gap:5px 22px;align-items:center;margin:0!important}.article-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(230px,1fr);gap:40px;align-items:start}.article-layout .article-body{min-width:0;font-size:17px;color:#263e4b;max-width:none}.article-body h2{font-size:27px;line-height:1.4;margin:42px 0 16px;letter-spacing:-.02em;max-width:none;color:var(--ink);scroll-margin-top:110px}.article-body h3{font-size:21px;line-height:1.45;margin:28px 0 12px;scroll-margin-top:110px}.article-body p{margin:16px 0}.article-body .lead{font-size:18px;line-height:1.8;max-width:none;color:#435d6a}.article-body figure{margin:0 0 28px}.article-body figure img{border-radius:16px;max-height:650px;object-fit:cover}.article-body figcaption{font-size:11px;color:var(--muted);margin-top:8px;line-height:1.6}.article-body .toc{display:block;height:auto;padding:22px 24px;background:#f4f6f8;border:1px solid var(--line);border-radius:14px;margin:28px 0}.toc summary,.toc strong{font-size:15px;font-weight:700}.toc ol{margin:12px 0 0;padding-left:20px;columns:2;column-gap:28px}.toc li{font-size:13px;line-height:1.6;margin:6px 0;break-inside:avoid}.toc .toc-h3{margin-left:12px}.toc a:hover{text-decoration:underline;color:var(--red)}.article-body .table-wrap{overflow-x:auto;width:100%;max-width:100%;border:1px solid var(--line);border-radius:12px;margin:22px 0}.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:0}.article-body th,.article-body td{padding:14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere}.article-body th{background:#edf2f6;color:var(--ink)}.article-body aside{background:#fff6ed;padding:20px;border-radius:12px}.article-layout>aside,.article-layout>.article-side{position:sticky;top:110px;border:1px solid var(--line);border-radius:18px;padding:24px;background:white;box-shadow:0 8px 30px #152c3906}.article-layout>aside h2,.article-layout>aside h3{font-size:21px;margin-top:0}.article-layout>aside p{font-size:14px;color:var(--muted)}.article-layout>aside .btn{display:flex;margin:10px 0}.ha-related{margin-top:42px;padding:24px;background:#f4f6f8;border-radius:16px}.ha-related h2{margin:0 0 16px;font-size:22px}.ha-related a{display:block;border-top:1px solid var(--line);padding:12px 0;font-size:14px;color:var(--ink)}.pager{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;height:auto;padding:24px 0}.pager a,.pager span{display:grid;place-items:center;min-width:42px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:9px;font-size:14px}.pager [aria-current]{background:var(--red);border-color:var(--red);color:white}main>section{padding-top:44px;padding-bottom:44px}.search-result-date{display:block;font-size:12px;color:var(--muted);margin-top:10px}body.ha-modern main{min-height:50vh}body.ha-modern input,body.ha-modern select,body.ha-modern textarea{font:inherit;max-width:100%}.ha-mobile-contact{display:none}
@media(min-width:1000px){.topic-grid .article-card:nth-child(n+4){display:grid;grid-template-columns:130px 1fr;grid-column:span 1}.topic-grid .article-card:nth-child(n+4){display:flex}}
@media(max-width:1050px){.ha-links{gap:15px;font-size:12px}.ha-header-cta .zalo{display:none}.ha-hero-grid{gap:30px}.article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:24px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.ha-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.wrap{padding-left:20px;padding-right:20px}.ha-nav{height:76px;gap:10px}.ha-brand strong{font-size:15px}.ha-brand small{font-size:9px}.ha-monogram{width:42px;height:42px;font-size:21px}.ha-header-cta{display:none}.ha-menu{display:block}.ha-links{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;box-shadow:0 12px 22px #0001;padding:20px;flex-direction:column;font-size:15px}.ha-links.open{display:flex}.quick-search .quick-search-form{grid-template-columns:minmax(0,1fr) auto;gap:10px}.quick-search .search-word{grid-column:1/-1}.quick-search .search-topic{min-width:0}.quick-search{padding:14px 0!important}.ha-hero{padding:36px 0}.ha-hero-grid{grid-template-columns:1fr;gap:26px}.ha-hero h1{font-size:40px}.ha-hero p{font-size:16px}.ha-hero figure img{border-radius:18px}.ha-section{padding:40px 0}.ha-section-head{align-items:start;flex-direction:column;gap:12px}.ha-section-head h2,.ha-principles h2,.ha-faq h2,.ha-contact-panel h2{font-size:28px}.ha-service-grid{grid-template-columns:1fr 1fr;gap:12px}.ha-service{padding:18px}.ha-service h3{font-size:17px}.ha-principles,.ha-faq,.ha-contact-panel{grid-template-columns:1fr;gap:24px}.ha-footer-grid{grid-template-columns:1fr;gap:20px}.ha-contact-panel{padding:24px;border-radius:18px}.ha-contact-panel .ha-contact-box{padding:20px}.latest-posts ol{grid-template-columns:1fr!important}.latest-posts{padding:28px 0!important}.topic-block{padding:18px!important}.topic-top{display:block}.topic-top>a{display:inline-block;margin-top:14px}.topic-top h2{font-size:23px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px!important}.article-card>div{padding:14px!important}.article-card :is(h2,h3){font-size:16px!important}.article-card small{font-size:10px}.article-card .publication-info{font-size:10px!important}.article-hero{padding:28px 0!important}.article-layout{display:block}.article-layout>aside{position:static;margin-top:30px}.article-body{font-size:16px!important}.article-body .lead{font-size:17px}.article-body h2{font-size:24px;margin-top:32px}.article-body h3{font-size:20px}.toc ol{columns:1}.article-body .toc{padding:18px}.article-body table{font-size:12px}.article-body td,.article-body th{padding:9px}.ha-float{right:12px;bottom:12px;left:12px;justify-content:center;background:#ffffffed;padding:8px;border:1px solid var(--line);backdrop-filter:blur(8px)}.ha-float .btn{flex:1;font-size:13px;padding:10px}.ha-footer{padding-bottom:110px}.ha-steps{gap:16px}.article-hero .publication-info{display:block}.article-hero .publication-info>*{display:block;margin:5px 0}}
@media(max-width:450px){.topic-grid{grid-template-columns:1fr!important}.ha-service-grid{grid-template-columns:1fr}.article-card{display:grid;grid-template-columns:120px minmax(0,1fr)}.article-card>a{height:100%}.article-card img{height:100%!important;aspect-ratio:auto}.article-card :is(h2,h3){font-size:16px!important}.article-card>div>p:not(.publication-info){display:none}.article-card .publication-info{margin-top:10px!important}.ha-hero h1{font-size:36px}.ha-steps{grid-template-columns:1fr}.ha-service .ha-index{float:left;margin-right:15px}.ha-service h3{margin-top:4px}.ha-service p,.ha-service>a{clear:both}.topic-grid .article-card:nth-child(n+4){display:grid}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.quick-search .quick-search-form label{display:block!important;text-align:left!important;align-items:stretch!important}.quick-search .quick-search-form input,.quick-search .quick-search-form select{height:48px!important;border-radius:10px!important}.quick-search .quick-search-form .btn{height:48px!important;border-radius:10px!important}.quick-search .wrap{padding-left:32px;padding-right:32px}.ha-modern .article-hero .publication-info{color:#60717b!important}@media(max-width:760px){.quick-search .wrap{padding-left:20px;padding-right:20px}}@media(max-width:450px){.topic-grid .article-card{display:flex}.article-card>a{height:auto}.article-card img{height:auto!important;aspect-ratio:4/3}.article-card>div>p:not(.publication-info){display:-webkit-box}.topic-grid .article-card:nth-child(n+4){display:flex}}
.ha-header{padding:0!important}.ha-header button{color:var(--ink)}.ha-breadcrumb{font-size:13px;color:var(--muted);margin-bottom:16px}.ha-breadcrumb a:hover{color:var(--red)}

.eyebrow{display:block;color:var(--red);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}h1,h2,h3{color:var(--ink)}main.wrap{padding-top:38px;padding-bottom:48px}main.wrap>h1,.topic-intro h1{font-size:clamp(30px,3.5vw,46px);line-height:1.25;letter-spacing:-.03em;margin:16px 0}.topic-intro{max-width:900px;padding:10px 0 30px}.topic-intro p{color:var(--muted);font-size:15px}main.wrap>nav[aria-label="Đường dẫn"]{display:block;height:auto;font-size:13px;color:var(--muted)}.article-body ul,.article-body ol{padding-left:24px}.article-body li{margin:9px 0}.article-body a:not(.btn){color:#a51c27;text-decoration:underline;text-underline-offset:3px}.article-body .toc a,.article-body .ha-related a{text-decoration:none}.article-body .actions .btn{color:white}.article-body .actions .btn.light{color:var(--ink)}.article-hero .wrap{padding-top:0}.aside-box .btn{width:100%}.ha-modern p{overflow-wrap:break-word}

/* Shared editorial design: Hoang Anh Group, release 4 */
:root{--red:#bc1829;--ink:#152c38;--muted:#61727e;--cream:#f5f6f7;--line:#dfe5e9;--radius:14px}body{font-family:Arial,Helvetica,sans-serif;background:#fcfcfd;line-height:1.75;color:var(--ink)}.wrap{max-width:1280px}.ha-header{background:#fff;border-bottom:1px solid #e4e8ed;backdrop-filter:none}.ha-nav{height:76px}.ha-monogram{border-radius:10px;background:var(--red);width:44px;height:44px}.ha-brand strong{font-size:17px;letter-spacing:.06em}.ha-brand small{font-size:10px;letter-spacing:.13em}.ha-links{font-size:13px;gap:25px}.btn{border-radius:7px;padding:12px 18px;letter-spacing:.01em;box-shadow:none}.btn.light{background:#fff;border-color:#d5dee5}.ha-header-cta .btn{padding:10px 15px}.quick-search{background:#f2f4f6!important;padding:13px 0!important}.quick-search .quick-search-form{grid-template-columns:minmax(0,1fr) 240px auto;gap:16px}.quick-search .quick-search-form input,.quick-search .quick-search-form 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@media(max-width:450px){.ha-service-grid{grid-template-columns:1fr}.r4-service{min-height:0;padding:20px;display:block}.r4-service .ha-index{float:left;margin:0 12px 10px 0}.r4-service h3{margin:4px 0 13px;min-height:32px}.r4-service p{clear:both;display:block}.r4-service a{margin-top:7px}.r4-count{display:inline-block;margin-left:12px}.topic-disclosure>.topic-top h2{font-size:17px}.topic-toggle:after{font-size:0;content:'+';font-size:20px}.topic-disclosure[open] .topic-toggle:after{content:'−';font-size:20px}.article-card{display:flex}.article-card>a{height:auto}.article-card img{height:auto!important;aspect-ratio:4/3}.article-card>div>p:not(.publication-info){display:-webkit-box}.topic-grid .article-card:nth-child(n+4){display:flex}.ha-steps{grid-template-columns:1fr}.r4-hero .actions .btn{font-size:12px;padding:11px 14px}}
.ha-header-cta .btn.zalo{background:#eaf3fc!important;color:#075da8!important;border-color:#c9dfef!important}.article-reading-info a{border-bottom:1px solid #bf8f95}