/* Cẩm nang v4 — a content-first editorial layout, isolated from legacy templates. */
body.v4-site{--v4-ink:#173846;--v4-muted:#607278;--v4-accent:#94733e;--v4-line:#dde4df;--v4-paper:#faf9f5;margin:0;background:var(--v4-paper);color:var(--v4-ink);font:400 15px/1.7 'Be Vietnam Pro',Arial,sans-serif;-webkit-font-smoothing:antialiased}
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/* Reading layout: compact title, image aligned with text, quiet sticky contents. */
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body.v4-site .v4-prose .vtb-article .vtb-cta{margin:28px 0!important;padding:23px 24px!important;border-radius:8px!important;border:1px solid #d5dece!important;border-top:2px solid #a58a5b!important;box-shadow:none!important;background:#f0f2e9!important}
body.v4-site .v4-prose .vtb-article .vtb-cta>strong{font-size:21px!important;line-height:1.5!important;margin-bottom:10px!important}
body.v4-site .v4-prose .vtb-article .vtb-cta p{font-size:14px!important;line-height:1.8!important;margin-bottom:15px!important}
body.v4-site .v4-prose .vtb-article .vtb-cta .vtb-kicker{font-size:9px!important;letter-spacing:.1em!important;margin-bottom:10px!important}
body.v4-site .v4-prose .vtb-article .vtb-cta a.vtb-btn,body.v4-site .v4-prose .vtb-article .vtb-cta a.vtb-btn-2{min-height:44px!important;padding:10px 16px!important;border-radius:5px!important;font-size:12px!important;font-weight:500!important}
body.v4-site .v4-prose .vtb-article .vtb-cta .vtb-note{font-size:10px!important;padding-top:12px!important;margin-top:12px!important;color:#586b65!important}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.v4-site *{animation:none!important;transition:none!important;scroll-behavior:auto!important}.v4-card:hover .v4-read span{transform:none}}

/* 20261014.2: constrain the native comment field on narrow screens. */
body.v4-site .comment-form textarea{display:block;box-sizing:border-box;width:100%;max-width:100%;min-width:0;resize:vertical;font:inherit}