/* Bài viết công khai (/bai-viet) & trang Về chúng tôi */
:root { --ink: #1d2742; --mut: #6b7590; --acc: #f26b38; --bg: #fbf7f1; --line: #efe6da; }
* { box-sizing: border-box; }
body { margin: 0; font: 16.5px/1.75 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--ink); background: var(--bg); }
a { color: #c2410c; }
.bl-wrap { max-width: 980px; margin: 0 auto; padding: 0 18px; }
.bl-top { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 30; }
.bl-top .bl-wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; }
.bl-logo { font-weight: 800; font-size: 20px; color: var(--ink); text-decoration: none; }
.bl-top nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.bl-top nav a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 15px; }
.bl-btn { background: var(--acc); color: #fff !important; padding: 7px 14px; border-radius: 999px; }
main.bl-wrap { padding-top: 26px; padding-bottom: 50px; }
.bl-h1 { font-size: 32px; line-height: 1.25; margin: 0 0 12px; }
.bl-tags a { display: inline-block; margin: 2px 4px 2px 0; padding: 2px 10px; border-radius: 999px; background: #fff; border: 1px solid var(--line); text-decoration: none; font-size: 14px; }
.bl-tags a.on { background: var(--acc); color: #fff; border-color: var(--acc); }
.bl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; margin-top: 16px; }
.bl-card { display: flex; flex-direction: column; background: #fff; border-radius: 18px; overflow: hidden; text-decoration: none; color: var(--ink); border: 1px solid var(--line); transition: transform 0.15s, box-shadow 0.15s; }
.bl-card:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(29, 39, 66, 0.1); }
.bl-card img, .bl-noimg { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.bl-noimg { display: grid; place-items: center; font-size: 48px; background: linear-gradient(135deg, #ffe6d5, #e0f2fe); }
.bl-card > div { padding: 12px 16px 16px; }
.bl-card h2 { font-size: 18.5px; line-height: 1.35; margin: 0 0 6px; }
.bl-card p { margin: 0 0 6px; color: var(--mut); font-size: 15px; }
.bl-card small { color: var(--mut); }
.bl-empty { color: var(--mut); }
.bl-article { background: #fff; border-radius: 20px; padding: 26px 30px 34px; border: 1px solid var(--line); max-width: 760px; margin: 0 auto; }
.bl-article h1 { font-size: 34px; line-height: 1.25; margin: 6px 0 6px; }
.bl-crumb, .bl-meta { color: var(--mut); font-size: 14.5px; margin: 0; }
.bl-crumb a { color: var(--mut); }
.bl-cover { width: 100%; border-radius: 14px; margin: 16px 0 6px; }
.bl-lead { font-size: 19px; color: #374151; font-weight: 500; }
.bl-body h2 { font-size: 24px; margin: 28px 0 8px; }
.bl-body h3 { font-size: 20px; margin: 22px 0 6px; }
.bl-body img { max-width: 100%; border-radius: 12px; }
.bl-body blockquote { margin: 14px 0; padding: 10px 16px; border-left: 4px solid var(--acc); background: #fff7ed; border-radius: 0 12px 12px 0; }
.bl-body hr { border: 0; border-top: 1px solid var(--line); margin: 24px 0; }
.bl-cta { max-width: 760px; margin: 18px auto; padding: 14px 18px; border-radius: 16px; background: #fff7ed; border: 1px solid #fed7aa; }
.bl-more { max-width: 760px; margin: 30px auto 0; font-size: 22px; }
.bl-foot { border-top: 1px solid var(--line); background: #fff; padding: 18px 0; font-size: 14px; color: var(--mut); }
.bl-foot .bl-wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.bl-foot nav { display: flex; gap: 14px; flex-wrap: wrap; }
.bl-foot a { color: var(--mut); }
@media (max-width: 600px) { .bl-article { padding: 18px 16px 24px; border-radius: 0; margin: 0 -18px; } .bl-article h1 { font-size: 27px; } .bl-h1 { font-size: 26px; } }
@media (max-width: 600px) {
  .bl-top .bl-wrap { min-height: 50px; gap: 4px 10px; padding-top: 6px; padding-bottom: 6px; }
  .bl-logo { font-size: 17px; }
  .bl-top nav { gap: 10px; }
  .bl-top nav a { font-size: 13.5px; }
  .bl-btn { padding: 4px 11px; }
}