/* Trung tâm hướng dẫn (/huong-dan và tab Hướng dẫn trong app chủ nhà) */
.g-wrap { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 28px; align-items: start; }
.g-nav { position: sticky; top: 84px; display: grid; gap: 2px; padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.g-nav-h { font-size: 13px; padding: 4px 10px 10px; color: var(--muted); font-family: var(--mono); text-transform: uppercase; letter-spacing: .06em; font-weight: 500; }
.g-nav a { display: flex; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 10px; font-size: 14px; color: var(--ink-2); }
.g-nav a span { width: 22px; text-align: center; }
.g-nav a:hover { background: var(--bg-2); }
.g-nav a.on { background: var(--ink); color: #fff; font-weight: 600; }
.g-article { min-width: 0; max-width: 860px; }
.g-kicker { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.g-article h1 { font-size: 32px; font-weight: 800; letter-spacing: -.03em; margin: 6px 0 8px; }
.g-lead { color: var(--muted); font-size: 16.5px; margin-bottom: 22px; }
.g-steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.g-steps > li { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.g-no { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; background: var(--amber); color: var(--ink); font-weight: 800; font-family: var(--mono); }
.g-steps h3 { font-size: 17px; margin: 5px 0 6px; }
.g-steps p { color: var(--ink-2); font-size: 15px; line-height: 1.6; }
.g-steps a { color: var(--green-2); text-decoration: underline; }
.g-shot { margin: 14px 0 0; }
.g-shot img { width: 100%; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 10px 30px -18px rgba(14,23,18,.35); }
.g-shot figcaption { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
.g-next { display: inline-block; margin-top: 18px; font-weight: 600; padding: 10px 16px; border-radius: 12px; border: 1px solid var(--line-2); background: #fff; }
.g-next:hover { border-color: var(--ink); }
.g-faq { display: grid; gap: 8px; }
.g-faq details { border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 14px 16px; }
.g-faq summary { cursor: pointer; font-weight: 600; }
.g-faq p { margin-top: 8px; color: var(--ink-2); }
.g-help { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 26px; padding: 18px 20px; border-radius: 18px; background: var(--ink); color: #fff; }
.g-help p { color: rgba(255,255,255,.7); font-size: 14px; }
.g-page { padding: 34px 0 70px; background: var(--bg-2); }
@media (max-width: 860px) { .g-wrap { grid-template-columns: 1fr; } .g-nav { position: static; display: flex; overflow-x: auto; } .g-nav-h { display: none; } .g-nav a { flex: none; } .g-article h1 { font-size: 26px; } .g-steps > li { grid-template-columns: 1fr; } }