/* G-Network — dựa trên bố cục template "Startup" (HTML Codex, CC BY 4.0), viết lại CSS thuần, không Bootstrap/jQuery */
:root {
  --primary: #06A3DA; --secondary: #34AD54; --light: #EEF9FF; --dark: #091E3E; --text: #6B6A75; --line: #e7edf3;
  --radius: 6px; --shadow: 0 10px 30px rgba(9, 30, 62, .08);
  --head: 'Nunito', system-ui, sans-serif; --body: 'Rubik', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 16px/1.7 var(--body); color: var(--text); background: #fff; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4, h5 { font-family: var(--head); color: var(--dark); margin: 0; line-height: 1.25; font-weight: 800; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--dark); }
img { max-width: 100%; display: block; }
.ic { width: 1em; height: 1em; fill: currentColor; flex: none; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.mt { margin-top: 40px; }
.muted { color: #94a3b8; }
.empty { text-align: center; padding: 60px 16px; color: #94a3b8; }

/* nút */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 30px; border: 0; border-radius: var(--radius);
  background: var(--primary); color: #fff; font: 600 15px var(--head); cursor: pointer; transition: background .25s, color .25s, box-shadow .25s; }
.btn:hover { background: var(--dark); color: #fff; }
.btn.outline { background: transparent; color: var(--primary); box-shadow: inset 0 0 0 2px var(--primary); }
.btn.outline:hover { background: var(--primary); color: #fff; }
.btn.outline-light { background: transparent; box-shadow: inset 0 0 0 2px #fff; }
.btn.outline-light:hover { background: #fff; color: var(--dark); }

/* thanh trên */
.topbar { background: var(--dark); color: #cbd5e1; font-size: 14px; }
.topbar-in { display: flex; justify-content: space-between; align-items: center; min-height: 44px; gap: 16px; }
.tb-info { display: flex; gap: 24px; flex-wrap: wrap; }
.tb-info span, .tb-info a { display: inline-flex; align-items: center; gap: 8px; color: #cbd5e1; }
.tb-info .ic { color: var(--primary); }
.tb-social { display: flex; gap: 8px; }
.tb-social a, .ftr-social a { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3); color: #fff; }
.tb-social a:hover, .ftr-social a:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
@media (max-width: 900px) { .topbar { display: none; } }

/* menu */
.nav { position: sticky; top: 0; z-index: 50; background: #fff; transition: box-shadow .25s; }
.nav.scrolled { box-shadow: 0 6px 24px rgba(9,30,62,.1); }
.nav-in { display: flex; align-items: center; gap: 24px; min-height: 80px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--primary); font: 800 30px/1 var(--head); }
.logo img { height: 40px; width: auto; }
.logo:hover { color: var(--primary); }
.logo.light { color: #fff; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links > a { position: relative; padding: 28px 14px; color: var(--dark); font: 700 16px var(--head); }
.nav-links > a::after { content: ""; position: absolute; left: 50%; bottom: 20px; width: 0; height: 2px; background: var(--primary); transition: .3s; transform: translateX(-50%); }
.nav-links > a:hover, .nav-links > a.on { color: var(--primary); }
.nav-links > a:hover::after, .nav-links > a.on::after { width: calc(100% - 28px); }
.nav-search { display: flex; margin-left: 12px; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.nav-search input { width: 160px; border: 0; padding: 0 14px; height: 40px; font: inherit; font-size: 14px; outline: none; color: var(--dark); transition: width .25s; }
.nav-search input:focus { width: 220px; }
.nav-search button { border: 0; background: var(--primary); color: #fff; width: 42px; cursor: pointer; }
.nav-toggle { display: none; margin-left: auto; border: 1px solid var(--line); background: #fff; color: var(--primary); width: 46px; height: 42px; border-radius: var(--radius); font-size: 22px; cursor: pointer; }
@media (max-width: 1100px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; background: #fff; padding: 8px 20px 20px; box-shadow: 0 16px 30px rgba(9,30,62,.12); display: none; }
  .nav-links.open { display: flex; }
  .nav-links > a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links > a::after { display: none; }
  .nav-search { margin: 14px 0 0; }
  .nav-search input, .nav-search input:focus { width: 100%; flex: 1; }
  .nav-in { min-height: 70px; }
}

/* slide đầu trang */
.hero { position: relative; height: min(88vh, 760px); min-height: 520px; overflow: hidden; background: var(--dark); }
.slide { position: absolute; inset: 0; background: center/cover no-repeat; opacity: 0; transition: opacity 1s; display: grid; place-items: center; text-align: center; }
.slide::before { content: ""; position: absolute; inset: 0; background: rgba(9, 30, 62, .72); }
.slide.on { opacity: 1; z-index: 1; }
.slide-in { position: relative; max-width: 960px; padding: 0 24px 60px; }
.slide h5 { color: #fff; text-transform: uppercase; letter-spacing: .08em; font-size: 18px; margin-bottom: 16px; }
.slide .slide-title { color: #fff; font-size: clamp(34px, 6vw, 72px); line-height: 1.15; margin-bottom: 32px; }
.slide.on h5, .slide.on .slide-title, .slide.on .slide-btns { animation: rise .9s both; }
.slide.on .slide-title { animation-delay: .12s; }
.slide.on .slide-btns { animation-delay: .25s; }
@keyframes rise { from { opacity: 0; transform: translateY(26px); } }
.slide-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-nav { position: absolute; z-index: 2; top: 50%; transform: translateY(-50%); width: 54px; height: 54px; border: 0; border-radius: var(--radius); background: rgba(255,255,255,.12); color: #fff; font-size: 28px; cursor: pointer; display: grid; place-items: center; }
.hero-nav:hover { background: var(--primary); }
.hero-nav.prev { left: 20px; } .hero-nav.next { right: 20px; }
@media (prefers-reduced-motion: reduce) { .slide, .slide.on * { transition: none; animation: none !important; } }

/* số liệu */
.facts { position: relative; z-index: 3; padding: 40px 0; }
.facts.overlap { margin-top: -80px; padding: 0 0 20px; }
.facts-grid { display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 0; box-shadow: var(--shadow); border-radius: var(--radius); overflow: hidden; }
.fact { display: flex; align-items: center; gap: 18px; padding: 34px 30px; background: var(--primary); color: #fff; min-height: 150px; }
.fact.alt { background: var(--light); color: var(--dark); }
.fact-ic { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 6px; background: #fff; color: var(--primary); font-size: 28px; flex: none; }
.fact.alt .fact-ic { background: var(--primary); color: #fff; }
.fact h5 { color: inherit; font-size: 17px; opacity: .9; text-transform: none; }
.fact b { display: block; font: 800 40px/1.1 var(--head); color: inherit; }
@media (max-width: 800px) { .facts-grid { grid-template-columns: 1fr; } .facts.overlap { margin-top: 0; padding-top: 30px; } }

/* khối chung */
.sec { padding: 90px 0; }
.sec.light { background: var(--light); }
@media (max-width: 700px) { .sec { padding: 60px 0; } }
.sec-title { margin-bottom: 44px; max-width: 720px; }
.sec-title.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-title h5 { color: var(--primary); text-transform: uppercase; letter-spacing: .06em; font-size: 16px; margin-bottom: 10px; }
.sec-title h2 { font-size: clamp(26px, 3.4vw, 40px); position: relative; padding-bottom: 22px; }
.sec-title h2::before { content: ""; position: absolute; left: 0; bottom: 0; width: 90px; height: 5px; border-radius: 3px; background: var(--primary); }
.sec-title h2::after { content: ""; position: absolute; left: 96px; bottom: 0; width: 26px; height: 5px; border-radius: 3px; background: var(--primary); }
.sec-title.center h2::before { left: calc(50% - 58px); }
.sec-title.center h2::after { left: calc(50% + 38px); }
.lead { font-size: 17px; margin: 0 0 24px; }
.ticks { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; }
.ticks.inline { display: flex; flex-wrap: wrap; }
.ticks li { display: flex; align-items: center; gap: 10px; color: var(--dark); font: 700 16px var(--head); }
.ticks .ic { color: var(--primary); font-size: 20px; }
.callbox { display: flex; align-items: center; gap: 16px; margin: 0 0 30px; }
.callbox-ic { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 6px; background: var(--primary); color: #fff; font-size: 26px; }
.callbox small { display: block; }
.callbox b { color: var(--primary); font: 800 24px var(--head); }
.sq { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 6px; background: var(--primary); color: #fff; font-size: 26px; flex: none; }

/* giới thiệu */
.about { display: grid; grid-template-columns: 7fr 5fr; gap: 56px; align-items: center; }
.about-img img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; border-radius: var(--radius); }
@media (max-width: 900px) { .about { grid-template-columns: 1fr; } .about-img img { min-height: 300px; } }
@media (max-width: 520px) { .ticks { grid-template-columns: 1fr; } }

/* lý do */
.features { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; align-items: center; }
.features.no-img { grid-template-columns: 1fr 1fr; }
.feat-col { display: grid; gap: 40px; }
.feat h4 { font-size: 21px; margin: 16px 0 8px; }
.feat p { margin: 0; }
.feat-img img { width: 100%; min-height: 360px; object-fit: cover; border-radius: var(--radius); }
@media (max-width: 900px) { .features, .features.no-img { grid-template-columns: 1fr; } .feat-img { order: -1; } }

/* dịch vụ */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.svc { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; padding: 48px 30px 56px; background: var(--light); border-radius: var(--radius); transition: background .3s, transform .3s; }
.svc:hover { background: var(--primary); transform: translateY(-6px); }
.svc-ic { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 6px; background: var(--primary); color: #fff; font-size: 30px; transform: rotate(-45deg); margin-bottom: 26px; transition: .3s; }
.svc-ic .ic { transform: rotate(45deg); }
.svc:hover .svc-ic { background: #fff; color: var(--primary); }
.svc h4 { font-size: 21px; margin-bottom: 12px; transition: color .3s; }
.svc p { margin: 0; transition: color .3s; }
.svc:hover h4, .svc:hover p { color: #fff; }
.svc-more { position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 6px; background: var(--primary); color: #fff; font-size: 24px; transition: .3s; }
.svc:hover .svc-more { background: var(--dark); color: #fff; }
.svc.cta { background: var(--primary); justify-content: center; }
.svc.cta h4, .svc.cta p { color: #fff; }
.svc.cta b { color: #fff; font: 800 30px var(--head); margin-top: 14px; }
.svc.cta b.sm { font-size: 18px; word-break: break-all; }
@media (max-width: 1000px) { .services { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .services { grid-template-columns: 1fr; } }

/* bảng giá */
.plans { display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 30px; align-items: center; }
.plan { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column; }
.plan.featured { transform: scale(1.04); box-shadow: 0 20px 50px rgba(6, 163, 218, .25); z-index: 1; }
.plan-head { padding: 34px 30px 20px; border-bottom: 2px solid var(--light); }
.plan-head h4 { color: var(--primary); font-size: 24px; }
.plan-head small { text-transform: uppercase; letter-spacing: .04em; font-size: 13px; }
.plan-price { padding: 22px 30px; }
.plan-price b { font: 800 42px var(--head); color: var(--dark); }
.plan-price span { margin-left: 4px; }
.plan ul { list-style: none; margin: 0; padding: 0 30px 20px; display: grid; gap: 12px; }
.plan li { display: flex; gap: 10px; align-items: center; }
.plan li .ic { color: var(--primary); }
.plan .btn { margin: 10px 30px 34px; }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; } .plan.featured { transform: none; } }

/* đội ngũ */
.team { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 300px)); justify-content: center; gap: 30px; }
.member { background: var(--light); border-radius: var(--radius); overflow: hidden; transition: transform .3s, box-shadow .3s; }
.member:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.member-img { aspect-ratio: 1; overflow: hidden; background: #dbeafe; }
.member-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.member:hover .member-img img { transform: scale(1.06); }
.member-body { text-align: center; padding: 22px 16px; }
.member-body h4 { color: var(--primary); font-size: 21px; }
.member-body h4 a { color: inherit; }
.member-body small { text-transform: uppercase; letter-spacing: .03em; }
.initial { display: grid; place-items: center; width: 100%; height: 100%; font: 800 56px var(--head); color: #fff; background: linear-gradient(135deg, var(--primary), var(--dark)); }

/* nhận xét */
.testis { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(300px, 1fr); gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }
.testi { margin: 0; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; scroll-snap-align: start; border-top: 4px solid var(--primary); }
.testi figcaption { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.testi figcaption img, .testi .initial { width: 60px; height: 60px; border-radius: 6px; object-fit: cover; font-size: 24px; flex: none; }
.testi b { display: block; color: var(--primary); font: 800 18px var(--head); }
.testi small { text-transform: uppercase; font-size: 12.5px; }
.testi blockquote { margin: 0; }

/* thẻ video */
.vgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 30px; }
.vcard { display: flex; flex-direction: column; background: var(--light); border-radius: var(--radius); overflow: hidden; color: var(--text); transition: transform .3s, box-shadow .3s; }
.vcard:hover { transform: translateY(-6px); box-shadow: var(--shadow); color: var(--text); }
.vthumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--dark); }
.vthumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.vcard:hover .vthumb img { transform: scale(1.06); }
.vthumb .ph { position: absolute; inset: 0; background: linear-gradient(135deg, var(--primary), var(--dark)); }
.vplay { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; font-size: 54px; opacity: 0; background: rgba(9,30,62,.35); transition: opacity .3s; }
.vcard:hover .vplay { opacity: 1; }
.dur { position: absolute; right: 10px; bottom: 10px; background: rgba(9,30,62,.85); color: #fff; font: 600 12px/1 var(--body); padding: 5px 7px; border-radius: 4px; font-style: normal; }
.vbody { padding: 22px 24px 24px; display: grid; gap: 10px; }
.vmeta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.vmeta span, .vbody small span { display: inline-flex; align-items: center; gap: 6px; }
.vmeta .ic, .vbody small .ic { color: var(--primary); }
.vbody b { color: var(--dark); font: 800 20px/1.35 var(--head); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.vbody small { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13.5px; }
.vbody small .ok { color: var(--secondary); }
.vbody small .ok .ic { color: var(--secondary); }
.count { margin: -10px 0 26px; font-weight: 500; }
.pager { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-top: 44px; }
.pager a, .pager span { display: grid; place-items: center; min-width: 44px; height: 44px; padding: 0 12px; border-radius: var(--radius); background: var(--light); color: var(--dark); font: 700 16px var(--head); }
.pager a:hover { background: var(--primary); color: #fff; }
.pager .on { background: var(--primary); color: #fff; }
.pager .gap { background: none; }

/* yêu cầu báo giá */
.quote { display: grid; grid-template-columns: 7fr 5fr; gap: 56px; align-items: center; }
.quote-form { display: grid; gap: 14px; background: var(--primary); padding: 40px 34px; border-radius: var(--radius); }
.quote-form input, .quote-form select, .quote-form textarea { width: 100%; border: 0; border-radius: var(--radius); padding: 0 16px; height: 54px; font: inherit; background: var(--light); color: var(--dark); outline: none; }
.quote-form textarea { height: auto; padding: 14px 16px; resize: vertical; }
.quote-form .btn { background: var(--dark); }
.quote-form .btn:hover { background: #fff; color: var(--dark); }
.quote-form small { color: #e0f2fe; }
@media (max-width: 900px) { .quote { grid-template-columns: 1fr; } }

/* tiêu đề trang con */
.page-hero { background: linear-gradient(rgba(9,30,62,.82), rgba(9,30,62,.82)), url('img/hero-1.jpg') center/cover; padding: 90px 0 80px; text-align: center; }
.page-hero h1 { color: #fff; font-size: clamp(30px, 5vw, 56px); margin-bottom: 14px; overflow-wrap: anywhere; }
.crumbs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; color: #cbd5e1; font: 600 16px var(--head); }
.crumbs a { color: #fff; }
.crumbs a:hover { color: var(--primary); }
.crumbs b { color: var(--primary); font-weight: 700; }

/* liên hệ */
.contact-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 30px; }
.ccard { display: flex; align-items: center; gap: 18px; background: var(--light); padding: 30px; border-radius: var(--radius); color: var(--text); }
.ccard small { display: block; }
.ccard b { color: var(--primary); font: 800 19px var(--head); overflow-wrap: anywhere; }
a.ccard:hover { box-shadow: var(--shadow); color: var(--text); }

/* trang video */
.watch { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 34px; align-items: start; }
@media (max-width: 980px) { .watch { grid-template-columns: 1fr; } }
.player { background: #000; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; display: grid; }
.player video { width: 100%; height: 100%; background: #000; }
.ph-player { display: grid; place-items: center; color: #94a3b8; }
.byline { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; padding: 18px 0; border-bottom: 1px solid var(--line); }
.owner { display: flex; align-items: center; gap: 12px; color: var(--dark); }
.owner .initial { width: 48px; height: 48px; border-radius: 6px; font-size: 22px; }
.owner b { display: block; font: 800 18px var(--head); }
.owner small { display: block; }
.views { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.views .ic { color: var(--primary); }
.desc { margin-top: 18px; background: var(--light); padding: 18px 20px; border-radius: var(--radius); position: relative; overflow-wrap: anywhere; }
.desc.clamped { max-height: 11em; overflow: hidden; }
.desc.clamped::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3em; background: linear-gradient(transparent, var(--light)); }
.more-btn { margin-top: 10px; border: 0; background: none; color: var(--primary); font: 700 15px var(--head); cursor: pointer; padding: 0; }
.evidence { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; border-top: 4px solid var(--secondary); display: grid; gap: 14px; }
.evidence h3 { display: flex; align-items: center; gap: 10px; font-size: 20px; }
.evidence h3 .ic { color: var(--secondary); font-size: 24px; }
.evidence h4 { font-size: 14px; text-transform: uppercase; letter-spacing: .05em; color: var(--text); }
.evidence dl { margin: 0; display: grid; gap: 12px; }
.evidence dt { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; font-weight: 500; }
.evidence dd { margin: -10px 0 0; color: var(--dark); font: 700 16px var(--head); overflow-wrap: anywhere; }
.evidence dd small { display: block; font: 400 12.5px var(--body); color: var(--text); }
.hash { display: block; font: 12px/1.5 ui-monospace, Consolas, monospace; background: var(--light); padding: 6px 8px; border-radius: 4px; word-break: break-all; cursor: copy; color: var(--dark); }
.olinks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.olinks a { display: grid; padding: 10px 12px; background: var(--light); border-radius: var(--radius); }
.olinks b { color: var(--dark); font-family: var(--head); }
.olinks span { font-size: 12.5px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legal { margin: 0; font-size: 13px; border-top: 1px solid var(--line); padding-top: 14px; }

/* 404 */
.nf b { display: block; font: 800 140px/1 var(--head); color: var(--primary); }
.nf h2 { font-size: 34px; margin: 10px 0; }
.nf p { margin: 0 auto 28px; max-width: 520px; }

/* chân trang */
.ftr { background: var(--dark); color: #cbd5e1; padding-top: 70px; }
.ftr-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.ftr h3 { color: #fff; font-size: 22px; margin-bottom: 22px; }
.ftr p { margin: 16px 0; }
.ftr .small { font-size: 14.5px; margin-top: 0; }
.ftr-list, .ftr-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.ftr-list li { display: flex; gap: 12px; align-items: flex-start; }
.ftr-list .ic { color: var(--primary); margin-top: 5px; }
.ftr a { color: #cbd5e1; }
.ftr a:hover { color: var(--primary); }
.ftr-links a::before { content: "›"; margin-right: 10px; color: var(--primary); }
.ftr-social { display: flex; gap: 8px; }
.ftr-bottom { background: #061429; padding: 22px 0; font-size: 14.5px; }
.ftr-bottom .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.ftr-bottom a { color: #fff; border-bottom: 1px solid currentColor; }
@media (max-width: 1000px) { .ftr-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .ftr-grid { grid-template-columns: 1fr; } }

.to-top { position: fixed; right: 26px; bottom: 26px; z-index: 40; display: grid; place-items: center; width: 50px; height: 50px; border-radius: var(--radius); background: var(--primary); color: #fff; font-size: 28px; opacity: 0; pointer-events: none; transition: opacity .3s; }
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { background: var(--dark); color: #fff; }
@media (max-width: 700px) { .hero-nav { display: none; } .slide h5 { font-size: 14px; } .hero { min-height: 480px; } }

/* ---------- Tin tức tự động ---------- */
.pcard .vthumb img { position: relative; z-index: 1; }
.pcard .src { position: absolute; z-index: 2; left: 14px; bottom: 14px; max-width: calc(100% - 28px); padding: 4px 12px; border-radius: 999px; background: var(--primary); color: #fff; font: 700 13px var(--head); font-style: normal; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pcard .vmeta .ic { flex: none; }
.psum { font-style: normal; font-size: 15px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-sec { background: #f7fbfe; }
.article { max-width: 860px; }
.article h1 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 16px; overflow-wrap: anywhere; }
.art-meta { padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.art-meta a { color: var(--primary); font-weight: 500; }
.art-img { margin: 0 0 26px; }
.art-img img { width: 100%; max-height: 480px; object-fit: cover; border-radius: var(--radius); background: var(--light); }
.art-img figcaption, .art-body figcaption { font-size: 13px; color: #94a3b8; margin-top: 6px; }
.art-lead { font-size: 19px; line-height: 1.75; color: var(--dark); margin: 0 0 26px; }
.art-body { font-size: 17px; line-height: 1.8; overflow-wrap: anywhere; }
.art-body img { max-width: 100%; height: auto; border-radius: var(--radius); }
.art-body h2, .art-body h3, .art-body h4 { margin: 1.6em 0 .6em; }
.art-body blockquote { margin: 1.4em 0; padding: 4px 0 4px 20px; border-left: 4px solid var(--primary); color: var(--dark); }
.art-body pre { overflow: auto; padding: 16px; background: var(--light); border-radius: var(--radius); font-size: 14px; }
.art-body table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
.art-body th, .art-body td { border: 1px solid var(--line); padding: 8px 10px; }
.art-src { margin-top: 30px; padding: 20px 24px; border-radius: var(--radius); background: var(--light); color: var(--dark); line-height: 1.7; }
.art-src a:not(.btn) { color: var(--primary); }
.art-src .btn { white-space: normal; text-align: center; line-height: 1.3; padding-top: 10px; padding-bottom: 10px; }
.art-more { margin-top: 60px; }
.art-more h3 { font-size: 26px; margin-bottom: 24px; }
@media (max-width: 520px) { .art-src { padding: 16px; } .art-lead { font-size: 17px; } }
.art-src .mt { margin-top: 16px; }