/* VUA BAI VIET - deep sky & ice modern system (prefix vb-) */
:root{
  --vb-navy:#0c4a6e;--vb-navy-deep:#082f49;--vb-navy-ink:#041c2a;
  --vb-sky:#0ea5e9;--vb-sky-soft:#bae6fd;--vb-ice:#f0f9ff;--vb-ice-2:#e3f1fb;
  --vb-ink:#10212e;--vb-mut:#5b7080;
  --vb-line:rgba(12,74,110,.14);--vb-line-sky:rgba(14,165,233,.4);
  --vb-head-font:'Sora','Be Vietnam Pro',sans-serif;--vb-sans:'Be Vietnam Pro','Segoe UI',sans-serif;
  --vb-r:14px;--vb-shadow:0 20px 44px -24px rgba(8,47,73,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.vb-body{font-family:var(--vb-sans);color:var(--vb-ink);background:#fff;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.vb-shell{max-width:1240px;margin:0 auto;padding:0 28px}
.vb-skip{position:fixed;left:-9999px;top:8px;z-index:200;background:var(--vb-navy);color:#fff;padding:10px 18px;border-radius:999px}
.vb-skip:focus{left:8px}
h1,h2,h3,.vb-h2{font-family:var(--vb-head-font);font-weight:700;letter-spacing:.005em}
::selection{background:var(--vb-sky);color:var(--vb-navy-ink)}

/* buttons */
.vb-btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;font-weight:600;font-size:15px;border-radius:999px;border:1.5px solid transparent;transition:all .28s ease;cursor:pointer}
.vb-btn b{font-weight:700;transition:transform .28s ease}
.vb-btn:hover b{transform:translateX(4px)}
.vb-btn-sky{background:var(--vb-sky);color:#fff;box-shadow:0 12px 26px -14px rgba(14,165,233,.9)}
.vb-btn-sky:hover{background:#0284c7;transform:translateY(-2px)}
.vb-btn-ghost{border-color:var(--vb-line-sky);color:var(--vb-navy);background:#fff}
.vb-btn-ghost:hover{background:var(--vb-ice);transform:translateY(-2px)}
.vb-btn-navy{background:var(--vb-navy);color:#fff}
.vb-btn-navy:hover{background:var(--vb-navy-deep);transform:translateY(-2px)}

/* chips / kicker / headings */
.vb-chip{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--vb-navy);background:var(--vb-sky-soft);padding:5px 12px;border-radius:999px}
.vb-more{font-size:13px;font-weight:700;letter-spacing:.05em;color:#0284c7;display:inline-flex;align-items:center;gap:6px}
.vb-kicker{font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--vb-sky);margin-bottom:12px}
.vb-kicker-sky{color:var(--vb-sky-soft)}
.vb-head{margin-bottom:44px}
.vb-head-center{text-align:center;max-width:720px;margin-left:auto;margin-right:auto}
.vb-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.vb-h2{font-size:clamp(28px,3.4vw,44px);color:var(--vb-navy-deep);line-height:1.16}
.vb-head-desc{color:var(--vb-mut);margin-top:12px;font-size:16px}
.vb-section{padding:88px 0}
.vb-section-tint{background:linear-gradient(180deg,var(--vb-ice),#fff)}
.vb-section-deep{background:linear-gradient(150deg,var(--vb-navy-deep),var(--vb-navy-ink));color:#fff}
.vb-section-deep .vb-h2{color:#fff}
.vb-section-deep .vb-head-desc{color:rgba(255,255,255,.7)}

/* reveal */
html.vb-js .vb-reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
html.vb-js .vb-reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.vb-js .vb-reveal{opacity:1;transform:none;transition:none}}

/* ============ header ============ */
.vb-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--vb-line)}
.vb-header-in{display:flex;align-items:center;gap:28px;padding-top:14px;padding-bottom:14px}
.vb-brand{flex:none}
.vb-brand-img{width:212px;height:auto}
.vb-nav{margin-left:auto}
.vb-nav-list{display:flex;gap:4px;flex-wrap:wrap}
.vb-nav-a{display:block;padding:9px 15px;font-size:14px;font-weight:600;color:var(--vb-ink);border-radius:999px;transition:all .25s ease}
.vb-nav-a:hover{background:var(--vb-ice);color:var(--vb-navy)}
.vb-nav-a.is-active{background:var(--vb-navy);color:#fff}
.vb-burger{display:none;background:#fff;border:1.5px solid var(--vb-line);border-radius:12px;width:46px;height:42px;padding:11px;cursor:pointer}
.vb-burger span{display:block;height:2px;background:var(--vb-navy);margin:4.5px 0;border-radius:2px;transition:all .3s ease}
.vb-burger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.vb-burger.is-open span:nth-child(2){opacity:0}
.vb-burger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
/* mobile app-drawer */
.vb-drawer{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--vb-line);box-shadow:0 30px 50px -30px rgba(8,47,73,.3);transform:translateY(-10px);opacity:0;visibility:hidden;transition:all .3s ease;max-height:calc(100vh - 72px);overflow:auto}
.vb-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.vb-drawer-note{padding:18px 0 6px;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--vb-mut)}
.vb-drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:12px 0 22px}
.vb-drawer-grid a{display:flex;align-items:center;gap:12px;background:var(--vb-ice);border:1px solid var(--vb-line);border-radius:12px;padding:14px 16px;font-weight:600;font-size:14.5px;color:var(--vb-navy-deep)}
.vb-drawer-grid a:active{background:var(--vb-sky-soft)}
.vb-drawer-ic{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--vb-navy);color:#fff;font-size:12px;font-weight:700;flex:none}

/* ============ hero ============ */
.vb-hero{background:
  radial-gradient(820px 400px at 85% -10%,rgba(14,165,233,.16),transparent 60%),
  radial-gradient(600px 320px at -10% 110%,rgba(12,74,110,.08),transparent 60%),
  var(--vb-ice);
  padding:92px 0 110px;overflow:hidden}
.vb-hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.vb-hero-kicker{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:#0284c7;margin-bottom:18px}
.vb-hero-kicker i{width:34px;height:2px;background:var(--vb-sky);border-radius:2px;display:inline-block}
.vb-hero-title{font-size:clamp(34px,4.6vw,58px);line-height:1.12;color:var(--vb-navy-deep)}
.vb-hero-desc{margin-top:18px;color:var(--vb-mut);font-size:16.5px;max-width:520px}
.vb-hero-acts{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.vb-hero-stats{display:flex;gap:0;margin-top:44px;border-top:1px solid var(--vb-line);padding-top:26px;flex-wrap:wrap}
.vb-hero-stats li{padding:0 34px 0 0;margin-right:34px;position:relative}
.vb-hero-stats li+li::before{content:"";position:absolute;left:-17px;top:6px;bottom:6px;width:1px;background:var(--vb-line)}
.vb-hero-stats strong{display:block;font-family:var(--vb-head-font);font-size:30px;color:var(--vb-navy);line-height:1.15}
.vb-hero-stats span{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--vb-mut)}
.vb-hero-media{position:relative;padding-bottom:64px}
.vb-hero-fig{margin:0;position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--vb-shadow)}
.vb-hero-fig::after{content:"";position:absolute;inset:0;border:1.5px solid rgba(255,255,255,.5);border-radius:22px;pointer-events:none}
.vb-hero-fig img{width:100%;aspect-ratio:12/9;object-fit:cover}
.vb-hero-badge{position:absolute;top:18px;left:18px;background:rgba(8,47,73,.9);color:var(--vb-sky-soft);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:9px 16px;border-radius:999px}
.vb-hero-minis{position:absolute;left:-24px;right:34px;bottom:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.vb-hero-minis a{display:grid;grid-template-columns:84px 1fr;gap:12px;align-items:center;background:#fff;border:1px solid var(--vb-line);border-radius:14px;padding:10px;box-shadow:0 14px 30px -18px rgba(8,47,73,.3);transition:all .28s ease}
.vb-hero-minis a:hover{transform:translateY(-3px);border-color:var(--vb-line-sky)}
.vb-hero-minis img{width:84px;height:64px;object-fit:cover;border-radius:9px}
.vb-hero-mini-body strong{display:block;font-size:13px;font-weight:600;color:var(--vb-ink);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-hero-mini-body time{font-size:11.5px;color:var(--vb-mut)}

/* ============ categories: 4x2 text cards ============ */
.vb-catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.vb-cat{position:relative;display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--vb-line);border-radius:var(--vb-r);padding:26px 22px 22px;overflow:hidden;height:100%;transition:all .3s ease}
.vb-cat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--vb-sky);transform:scaleY(0);transform-origin:top;transition:transform .3s ease}
.vb-cat:hover{border-color:var(--vb-line-sky);box-shadow:var(--vb-shadow);transform:translateY(-4px)}
.vb-cat:hover::before{transform:scaleY(1)}
.vb-cat-no{position:absolute;right:12px;top:6px;font-family:var(--vb-head-font);font-size:64px;font-weight:800;color:var(--vb-ice-2);line-height:1;pointer-events:none;transition:color .3s ease}
.vb-cat:hover .vb-cat-no{color:var(--vb-sky-soft)}
.vb-cat-name{font-family:var(--vb-head-font);font-size:19px;font-weight:700;color:var(--vb-navy-deep);position:relative}
.vb-cat-desc{font-size:13.5px;color:var(--vb-mut);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;position:relative}
.vb-cat-go{margin-top:auto;display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:1.5px solid var(--vb-line-sky);color:#0284c7;font-size:16px;transition:all .3s ease}
.vb-cat:hover .vb-cat-go{background:var(--vb-sky);border-color:var(--vb-sky);color:#fff}

/* ============ spotlight: L-shape ============ */
.vb-spot{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:auto auto;gap:20px}
.vb-spot-main{grid-row:1/3}
.vb-spot-main a{display:block;position:relative;border-radius:18px;overflow:hidden;height:100%;min-height:440px}
.vb-spot-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .6s ease}
.vb-spot-main a:hover img{transform:scale(1.05)}
.vb-spot-main-body{position:absolute;left:0;right:0;bottom:0;padding:28px 30px;background:linear-gradient(180deg,transparent,rgba(4,28,42,.94) 50%);display:block}
.vb-spot-main-body strong{display:block;font-family:var(--vb-head-font);font-size:clamp(20px,2.2vw,28px);color:#fff;margin:12px 0;line-height:1.3}
.vb-spot-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,.65)}
.vb-spot-meta .vb-more{color:var(--vb-sky-soft)}
.vb-spot-col{display:contents}
.vb-spot-mid a{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(186,230,253,.22);border-radius:14px;padding:12px;transition:all .3s ease;height:100%}
.vb-spot-mid a:hover{background:rgba(14,165,233,.14);border-color:var(--vb-sky)}
.vb-spot-mid img{width:150px;height:110px;object-fit:cover;border-radius:9px}
.vb-spot-mid-cat{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--vb-sky)}
.vb-spot-mid-body strong{display:block;font-size:16.5px;font-weight:600;color:#fff;margin-top:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.vb-spot-bar{grid-column:1/3}
.vb-spot-bar a{display:grid;grid-template-columns:220px 1fr auto;gap:22px;align-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(186,230,253,.22);border-radius:14px;padding:14px;transition:all .3s ease}
.vb-spot-bar a:hover{background:rgba(14,165,233,.14);border-color:var(--vb-sky)}
.vb-spot-bar img{width:220px;height:120px;object-fit:cover;border-radius:9px}
.vb-spot-bar-body{display:block}
.vb-spot-bar-body strong{display:block;font-family:var(--vb-head-font);font-size:19px;color:#fff;margin:8px 0 6px;line-height:1.35}
.vb-spot-bar-desc{display:block;font-size:13.5px;color:rgba(255,255,255,.68)}
.vb-spot-bar-go{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:1.5px solid rgba(186,230,253,.4);color:var(--vb-sky-soft);font-size:18px;flex:none}

/* ============ latest: 2-col horizontal rows ============ */
.vb-news-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px}
.vb-news-row{display:grid;grid-template-columns:130px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--vb-line);border-radius:14px;padding:12px;transition:all .28s ease;height:100%}
.vb-news-row:hover{border-color:var(--vb-line-sky);box-shadow:var(--vb-shadow);transform:translateY(-3px)}
.vb-news-row img{width:130px;height:96px;object-fit:cover;border-radius:9px}
.vb-news-body{display:block;min-width:0}
.vb-news-meta{display:flex;gap:12px;align-items:center;font-size:11.5px;color:var(--vb-mut)}
.vb-news-meta i{font-style:normal;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#0284c7;font-size:10.5px}
.vb-news-body strong{display:block;font-size:15.5px;font-weight:600;color:var(--vb-ink);line-height:1.45;margin:5px 0 4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-news-desc{display:block;font-size:12.5px;color:var(--vb-mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vb-news-go{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--vb-ice);color:var(--vb-navy);font-size:15px;flex:none;transition:all .28s ease}
.vb-news-row:hover .vb-news-go{background:var(--vb-sky);color:#fff}

/* ============ FAQ: 2x3 card grid ============ */
.vb-faq{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.vb-faq-item{background:#fff;border:1px solid var(--vb-line);border-radius:var(--vb-r);transition:all .3s ease}
.vb-faq-item:hover{border-color:var(--vb-line-sky)}
.vb-faq-item[open]{border-color:var(--vb-sky);box-shadow:var(--vb-shadow)}
.vb-faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;padding:20px 22px;list-style:none}
.vb-faq-item summary::-webkit-details-marker{display:none}
.vb-faq-q{font-family:var(--vb-head-font);font-size:16px;font-weight:600;color:var(--vb-navy-deep);line-height:1.45}
.vb-faq-ico{position:relative;flex:none;width:30px;height:30px;border-radius:50%;background:var(--vb-ice);transition:all .3s ease}
.vb-faq-ico::before,.vb-faq-ico::after{content:"";position:absolute;background:var(--vb-navy);left:50%;top:50%;transition:all .3s ease}
.vb-faq-ico::before{width:11px;height:1.6px;transform:translate(-50%,-50%)}
.vb-faq-ico::after{width:1.6px;height:11px;transform:translate(-50%,-50%)}
.vb-faq-item[open] .vb-faq-ico{background:var(--vb-sky)}
.vb-faq-item[open] .vb-faq-ico::before,.vb-faq-item[open] .vb-faq-ico::after{background:#fff}
.vb-faq-item[open] .vb-faq-ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.vb-faq-a{padding:0 22px 22px;color:var(--vb-mut);font-size:14.5px}

/* ============ about ============ */
.vb-about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.vb-about-desc{color:rgba(255,255,255,.78);margin:16px 0 26px;font-size:16px}
.vb-about-chips{display:flex;gap:14px;margin-bottom:30px;flex-wrap:wrap}
.vb-about-chips li{background:rgba(255,255,255,.07);border:1px solid rgba(186,230,253,.25);border-radius:12px;padding:14px 22px;min-width:130px}
.vb-about-chips strong{display:block;font-family:var(--vb-head-font);font-size:24px;color:var(--vb-sky-soft)}
.vb-about-chips span{font-size:12px;color:rgba(255,255,255,.65)}
.vb-about-media{position:relative;margin:0}
.vb-about-media img{width:100%;aspect-ratio:12/9;object-fit:cover;border-radius:20px;border:1px solid rgba(186,230,253,.3)}
.vb-about-cap{position:absolute;left:20px;bottom:20px;background:rgba(4,28,42,.9);color:var(--vb-sky-soft);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;padding:10px 18px;border-radius:999px;border:1px solid rgba(186,230,253,.3)}

/* ============ inner banner ============ */
.vb-ibanner{background:
  radial-gradient(500px 220px at 12% 0,rgba(14,165,233,.25),transparent 60%),
  linear-gradient(150deg,var(--vb-navy-deep),var(--vb-navy-ink));
  color:#fff;padding:66px 0;position:relative;overflow:hidden}
.vb-ibanner::after{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;border:38px solid rgba(14,165,233,.18);pointer-events:none}
.vb-ibanner-in{position:relative;text-align:center}
.vb-ibanner-kicker{font-size:11px;font-weight:700;letter-spacing:.28em;color:var(--vb-sky);margin-bottom:10px}
.vb-ibanner-title{font-family:var(--vb-head-font);font-size:clamp(26px,3.2vw,38px);font-weight:700}
.vb-ibanner-desc{max-width:640px;margin:10px auto 0;color:rgba(255,255,255,.7);font-size:14.5px}

/* ============ crumb ============ */
.vb-crumb{background:#fff;border-bottom:1px solid var(--vb-line)}
.vb-crumb-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-top:13px;padding-bottom:13px;font-size:13.5px}
.vb-crumb a{color:var(--vb-mut);transition:color .2s ease}
.vb-crumb a:hover{color:#0284c7}
.vb-crumb-sep{color:var(--vb-sky);font-size:12px}
.vb-crumb-now{color:var(--vb-navy-deep);font-weight:600;max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ============ page / list ============ */
.vb-page{padding:72px 0 88px}
.vb-page-head{max-width:760px;margin-bottom:40px}
.vb-page-h1{font-size:clamp(30px,3.6vw,46px);color:var(--vb-navy-deep);margin-bottom:14px}
.vb-page-desc{color:var(--vb-mut);font-size:16px}
.vb-page-acts{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.vb-list-wrap{display:grid;grid-template-columns:1fr 330px;gap:48px;align-items:start}
.vb-rows{display:flex;flex-direction:column;gap:18px}
.vb-row{background:#fff;border:1px solid var(--vb-line);border-radius:16px;overflow:hidden;transition:all .3s ease}
.vb-row:hover{border-color:var(--vb-line-sky);box-shadow:var(--vb-shadow);transform:translateY(-3px)}
.vb-row-link{display:grid;grid-template-columns:240px 1fr;min-height:170px}
.vb-row-media{display:block;overflow:hidden}
.vb-row-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.vb-row:hover .vb-row-media img{transform:scale(1.05)}
.vb-row-body{padding:20px 24px;display:flex;flex-direction:column;gap:8px}
.vb-row-meta{display:flex;gap:14px;align-items:center;font-size:12.5px;color:var(--vb-mut)}
.vb-row-meta i{font-style:normal;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#0284c7;font-size:11px}
.vb-row-title{font-family:var(--vb-head-font);font-size:19px;font-weight:700;color:var(--vb-navy-deep);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-row-desc{font-size:14px;color:var(--vb-mut);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-row-body .vb-more{margin-top:auto}
.vb-pagi{display:flex;justify-content:center;gap:8px;margin-top:38px;flex-wrap:wrap}
.vb-pagi a,.vb-pagi span{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;border:1px solid var(--vb-line);border-radius:12px;font-size:14px;font-weight:600;color:var(--vb-navy);background:#fff;transition:all .25s ease;cursor:pointer}
.vb-pagi a:hover{border-color:var(--vb-sky);color:#0284c7}
.vb-pagi .is-cur{background:var(--vb-navy);border-color:var(--vb-navy);color:#fff}
.vb-pagi .is-dis{opacity:.4;pointer-events:none}

/* sidebar */
.vb-side{display:flex;flex-direction:column;gap:26px;position:sticky;top:100px}
.vb-side-box{background:#fff;border:1px solid var(--vb-line);border-radius:16px;padding:24px 24px 26px}
.vb-side-h{font-family:var(--vb-head-font);font-size:19px;color:var(--vb-navy-deep);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--vb-ice-2);position:relative}
.vb-side-h::after{content:"";position:absolute;left:0;bottom:-2px;width:44px;height:2px;background:var(--vb-sky)}
.vb-side-hot{display:flex;flex-direction:column;gap:16px}
.vb-side-hot a{display:grid;grid-template-columns:86px 1fr;gap:14px;align-items:center}
.vb-side-hot img{width:86px;height:64px;object-fit:cover;border-radius:9px}
.vb-side-hot-body strong{display:block;font-size:14px;font-weight:600;color:var(--vb-ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.vb-side-hot a:hover strong{color:#0284c7}
.vb-side-hot-body time{font-size:12px;color:var(--vb-mut)}
.vb-side-more{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#0284c7}
.vb-side-more:hover{color:var(--vb-navy)}
.vb-side-list{display:flex;flex-direction:column}
.vb-side-list li{border-bottom:1px dashed var(--vb-line)}
.vb-side-list li:last-child{border-bottom:none}
.vb-side-list a{display:flex;gap:14px;padding:12px 0;align-items:flex-start}
.vb-side-num{font-family:var(--vb-head-font);font-size:22px;font-weight:800;color:var(--vb-sky);line-height:1.2;flex:none;min-width:24px}
.vb-side-list a span:last-child{font-size:14px;font-weight:500;color:var(--vb-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-side-list a:hover span:last-child{color:#0284c7}
.vb-side-note{background:linear-gradient(150deg,var(--vb-navy-deep),var(--vb-navy-ink));border-color:rgba(186,230,253,.25)}
.vb-side-note .vb-side-h{color:#fff;border-bottom-color:rgba(186,230,253,.25)}
.vb-side-note p{color:rgba(255,255,255,.72);font-size:14px;margin-bottom:20px}

/* ============ article ============ */
.vb-article-wrap{display:grid;grid-template-columns:1fr 330px;gap:48px;align-items:start}
.vb-article-h1{font-size:clamp(28px,3.2vw,42px);color:var(--vb-navy-deep);line-height:1.2;margin-bottom:18px}
.vb-article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:14px 0;border-top:1px solid var(--vb-line);border-bottom:1px solid var(--vb-line);margin-bottom:28px;font-size:13.5px;color:var(--vb-mut)}
.vb-meta-item b{color:var(--vb-navy);font-weight:600}
.vb-article-figure{margin-bottom:28px}
.vb-article-figure img{width:100%;border-radius:16px}
.vb-article-body{font-size:16.5px;line-height:1.85;color:#26333e}
.vb-article-body h2{font-size:26px;color:var(--vb-navy-deep);margin:36px 0 14px;padding-left:16px;border-left:4px solid var(--vb-sky)}
.vb-article-body h3{font-size:21px;color:var(--vb-navy);margin:28px 0 12px}
.vb-article-body p{margin-bottom:18px}
.vb-article-body ul,.vb-article-body ol{margin:0 0 18px 24px}
.vb-article-body li{margin-bottom:8px}
.vb-article-body ul li{list-style:disc}
.vb-article-body ol li{list-style:decimal}
.vb-article-body strong{color:var(--vb-navy-deep)}
.vb-article-body a{color:#0284c7;text-decoration:underline;text-underline-offset:3px}
.vb-article-body blockquote{margin:26px 0;padding:22px 28px;background:var(--vb-ice);border-left:4px solid var(--vb-sky);border-radius:0 14px 14px 0;font-style:italic;color:var(--vb-mut)}
.vb-article-body img{border-radius:14px;margin:10px 0}
.vb-article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid var(--vb-line)}
.vb-tag-label{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--vb-mut);margin-right:4px}
.vb-tag{font-size:13px;font-weight:600;color:var(--vb-navy);border:1px solid var(--vb-line-sky);border-radius:999px;padding:7px 16px;transition:all .25s ease}
.vb-tag:hover{background:var(--vb-sky);border-color:var(--vb-sky);color:#fff}
.vb-switcher{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px}
.vb-switcher-cell{background:var(--vb-ice);border:1px solid var(--vb-line);border-radius:14px;padding:22px 26px;transition:all .25s ease}
.vb-switcher-cell:hover{border-color:var(--vb-line-sky)}
.vb-switcher-next{text-align:right}
.vb-switcher-label{display:block;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#0284c7;margin-bottom:8px}
.vb-switcher-link{font-family:var(--vb-head-font);font-size:17px;font-weight:600;color:var(--vb-navy-deep);line-height:1.45;transition:color .2s ease}
.vb-switcher-link:hover{color:#0284c7}
.vb-switcher-empty{font-size:13.5px;color:var(--vb-mut);font-style:italic}
.vb-block-h{font-family:var(--vb-head-font);font-size:25px;color:var(--vb-navy-deep);margin-bottom:22px;display:flex;align-items:center;gap:16px}
.vb-block-h::after{content:"";flex:1;height:1px;background:var(--vb-line)}
.vb-related{margin-top:52px}

/* cards grid */
.vb-grid{display:grid;gap:20px}
.vb-grid-4{grid-template-columns:repeat(4,1fr)}
.vb-card{background:#fff;border:1px solid var(--vb-line);border-radius:16px;overflow:hidden;transition:all .3s ease;height:100%}
.vb-card:hover{transform:translateY(-5px);border-color:var(--vb-line-sky);box-shadow:var(--vb-shadow)}
.vb-card-link{display:flex;flex-direction:column;height:100%}
.vb-card-media{position:relative;display:block;overflow:hidden}
.vb-card-media img{width:100%;aspect-ratio:10/7;object-fit:cover;transition:transform .5s ease}
.vb-card:hover .vb-card-media img{transform:scale(1.06)}
.vb-card-media .vb-chip{position:absolute;left:12px;bottom:12px}
.vb-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.vb-card-title{font-family:var(--vb-head-font);font-size:16.5px;font-weight:700;color:var(--vb-navy-deep);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vb-card-desc{font-size:13.5px;color:var(--vb-mut);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.vb-card-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--vb-mut);border-top:1px solid var(--vb-line);padding-top:12px}

/* ============ other categories ============ */
.vb-other{margin-top:56px}
.vb-other-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.vb-other-list a{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--vb-line);border-radius:14px;padding:18px 22px;transition:all .28s ease}
.vb-other-list a:hover{border-color:var(--vb-line-sky);box-shadow:var(--vb-shadow);transform:translateY(-3px)}
.vb-other-no{font-family:var(--vb-head-font);font-size:28px;font-weight:800;color:var(--vb-sky);flex:none}
.vb-other-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.vb-other-body strong{font-family:var(--vb-head-font);font-size:16px;color:var(--vb-navy-deep)}
.vb-other-body span{font-size:13px;color:var(--vb-mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vb-other-go{margin-left:auto;color:#0284c7;font-size:18px;flex:none}

/* ============ flink ============ */
.vb-flink{background:var(--vb-ice);border-top:1px solid var(--vb-line);padding:56px 0}
.vb-flink-head{text-align:center;max-width:640px;margin:0 auto 30px}
.vb-flink-title{font-family:var(--vb-head-font);font-size:25px;color:var(--vb-navy-deep)}
.vb-flink-note{color:var(--vb-mut);font-size:14px;margin-top:8px}
.vb-flink-row{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.vb-flink-chip{display:flex;flex-direction:column;align-items:center;gap:10px;background:#fff;border:1px solid var(--vb-line);border-radius:14px;padding:18px 10px;font-size:13px;font-weight:600;color:var(--vb-navy);text-align:center;transition:all .28s ease}
.vb-flink-chip:hover{border-color:var(--vb-sky);transform:translateY(-3px);box-shadow:var(--vb-shadow)}
.vb-flink-logo{width:46px;height:46px;object-fit:contain}

/* ============ footer ============ */
.vb-footer{background:var(--vb-navy-ink);color:rgba(255,255,255,.8)}
.vb-foot-top{text-align:center;padding:56px 0 34px;border-bottom:1px solid rgba(186,230,253,.16)}
.vb-fbrand{display:inline-block}
.vb-fbrand-img{width:240px;height:auto;margin:0 auto}
.vb-foot-slogan{max-width:560px;margin:18px auto 0;font-size:14.5px;color:rgba(255,255,255,.6)}
.vb-foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:44px;padding:44px 0}
.vb-foot-h{font-family:var(--vb-head-font);font-size:17px;color:#fff;margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid rgba(186,230,253,.16);position:relative}
.vb-foot-h::after{content:"";position:absolute;left:0;bottom:-1px;width:38px;height:1px;background:var(--vb-sky)}
.vb-foot-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.vb-foot-list a{color:rgba(255,255,255,.66);transition:color .2s ease}
.vb-foot-list a:hover{color:var(--vb-sky-soft)}
.vb-foot-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}
.vb-foot-info{display:flex;flex-direction:column;gap:14px}
.vb-foot-info li{display:flex;flex-direction:column;gap:2px}
.vb-foot-key{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--vb-sky)}
.vb-foot-val{font-size:14px;color:rgba(255,255,255,.75)}
.vb-foot-base{border-top:1px solid rgba(186,230,253,.16);padding:22px 0 30px;text-align:center}
.vb-foot-copy{font-size:13px;color:rgba(255,255,255,.48);max-width:760px;margin:0 auto 10px}
.vb-foot-meta{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
.vb-foot-sitemap{color:var(--vb-sky-soft);text-decoration:underline;text-underline-offset:3px}
.vb-foot-sitemap:hover{color:var(--vb-sky)}

/* top button */
.vb-top-btn{position:fixed;right:22px;bottom:22px;z-index:80;width:46px;height:46px;border-radius:50%;border:none;background:var(--vb-navy);color:#fff;font-size:18px;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s ease;box-shadow:0 12px 26px -12px rgba(8,47,73,.6)}
.vb-top-btn.is-show{opacity:1;visibility:visible;transform:none}
.vb-top-btn:hover{background:var(--vb-sky)}

/* ============ 404 ============ */
.vb-404{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:90px 20px;background:radial-gradient(700px 340px at 50% 0,rgba(14,165,233,.12),transparent 60%),var(--vb-ice)}
.vb-404-in{max-width:620px}
.vb-404-no{font-family:var(--vb-head-font);font-size:110px;font-weight:800;color:var(--vb-sky);line-height:1}
.vb-404-title{font-size:clamp(24px,3vw,34px);color:var(--vb-navy-deep);margin:14px 0 12px}
.vb-404-desc{color:var(--vb-mut);font-size:15.5px;max-width:440px;margin:0 auto 30px}
.vb-404-acts{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ============ responsive ============ */
@media (max-width:1120px){
  .vb-grid-4{grid-template-columns:repeat(2,1fr)}
  .vb-catgrid{grid-template-columns:repeat(2,1fr)}
  .vb-flink-row{grid-template-columns:repeat(3,1fr)}
  .vb-list-wrap,.vb-article-wrap{grid-template-columns:1fr 300px;gap:36px}
  .vb-nav-list{gap:2px}
  .vb-nav-a{padding:9px 11px;font-size:13.5px}
}
@media (max-width:960px){
  .vb-shell{padding:0 20px}
  .vb-nav{display:none}
  .vb-burger{display:block;margin-left:auto}
  .vb-hero-in{grid-template-columns:1fr;gap:60px}
  .vb-hero{padding:64px 0 90px}
  .vb-spot{grid-template-columns:1fr;grid-template-rows:auto}
  .vb-spot-main{grid-row:auto}
  .vb-spot-main a{min-height:340px}
  .vb-spot-bar{grid-column:auto}
  .vb-news-grid{grid-template-columns:1fr}
  .vb-about-wrap{grid-template-columns:1fr;gap:44px}
  .vb-list-wrap,.vb-article-wrap{grid-template-columns:1fr}
  .vb-side{position:static}
  .vb-section{padding:64px 0}
}
@media (max-width:640px){
  .vb-grid-4{grid-template-columns:1fr}
  .vb-catgrid{grid-template-columns:1fr}
  .vb-faq{grid-template-columns:1fr}
  .vb-hero-minis{position:static;margin-top:14px;grid-template-columns:1fr}
  .vb-hero-media{padding-bottom:0}
  .vb-spot-bar a{grid-template-columns:1fr}
  .vb-spot-bar img{width:100%;height:auto;aspect-ratio:16/9}
  .vb-spot-bar-go{display:none}
  .vb-spot-mid a{grid-template-columns:1fr}
  .vb-spot-mid img{width:100%;height:auto;aspect-ratio:16/9}
  .vb-row-link{grid-template-columns:1fr}
  .vb-row-media img{aspect-ratio:16/9;height:auto}
  .vb-news-row{grid-template-columns:100px 1fr}
  .vb-news-row img{width:100px;height:80px}
  .vb-news-go{display:none}
  .vb-flink-row{grid-template-columns:repeat(2,1fr)}
  .vb-foot-grid{grid-template-columns:1fr;gap:32px}
  .vb-switcher{grid-template-columns:1fr}
  .vb-switcher-next{text-align:left}
  .vb-other-list{grid-template-columns:1fr}
  .vb-hero-stats li{padding:0 18px 0 0;margin-right:18px}
  .vb-hero-stats li+li::before{left:-9px}
  .vb-crumb-now{max-width:220px}
  .vb-404-no{font-size:78px}
  .vb-drawer-grid{grid-template-columns:1fr}
}