/* ===== Syscall Việt Nam – màu & font chính (đổi tại đây) ===== */
:root{
  --dark:#262D38;      /* than chì */
  --accent:#C2410C;    /* cam */
  --accent-2:#9A3412;  /* cam đậm khi hover */
  --accent-soft:#FFF1E7;
  --ink:#1B2029; --steel:#5A616C; --line:#DDE0E5; --paper:#F5F5F6; --plate:#EDEEF1; --white:#FFFFFF;
  --ok:#17784A; --font:"Be Vietnam Pro","Segoe UI",system-ui,sans-serif;
  --r:16px; --wrap:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.6;font-size:16px}
img{max-width:100%}
a{color:var(--dark)} a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
h1,h2,h3{line-height:1.2;margin:0;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%}
.muted{color:var(--steel)}
.section{padding:72px 0}
.h2{font-size:clamp(26px,3vw,34px);font-weight:800}
.sec-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px}
.sec-head p{margin-top:8px;max-width:58ch}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:999px;font:inherit;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;border:0;transition:background .15s}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent-2);color:#fff}
.btn-dark{background:var(--dark);color:#fff}.btn-dark:hover{background:#3A4250;color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}.btn-ghost:hover{border-color:var(--steel);color:var(--ink)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* Header */
.topbar{background:var(--ink);color:#C9CDD4;font-size:13px}
.topbar .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 20px;min-height:38px;align-items:center}
.topbar a{color:#C9CDD4;text-decoration:none;display:inline-flex;align-items:center;gap:6px}.topbar a:hover{color:#fff}
.tb-l,.tb-r{display:flex;align-items:center;gap:22px}
.tb-soc{display:flex;gap:12px;padding-left:18px;border-left:1px solid #3A414D}
.header{background:rgba(255,255,255,.97);backdrop-filter:blur(8px);position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.header.scrolled{box-shadow:0 10px 30px -18px rgba(27,32,41,.35)}
.header>.wrap{display:flex;align-items:center;gap:18px;min-height:76px;position:relative}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--dark);flex:none}
.logo-mark{width:38px;height:38px;border-radius:50%;background:var(--dark);display:grid;place-items:center;box-shadow:inset 0 0 0 3px #3A4250}
.logo-mark i{width:13px;height:13px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(194,65,12,.28)}
.logo b{display:block;font-size:21px;font-weight:800;letter-spacing:.04em;line-height:1.05}
.logo small{font-size:11px;color:var(--steel);letter-spacing:.02em}
.logo-dark{color:#fff}.logo-dark small{color:#9AA0A9}.logo-dark .logo-mark{background:#fff;box-shadow:none}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav>a,.has-mega>a{display:inline-flex;align-items:center;gap:4px;padding:10px 11px;white-space:nowrap;border-radius:8px;text-decoration:none;font-weight:500;font-size:15px;color:var(--ink);position:relative}
.nav>a:hover,.has-mega>a:hover{color:var(--accent)}
.nav a.active{font-weight:700;color:var(--ink)}
.nav a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent)}
.has-mega{position:static}
.mega{position:absolute;left:24px;right:24px;top:100%;padding-top:10px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility .18s;z-index:50}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:none}
.mega-in{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 60px -30px rgba(27,32,41,.4);display:grid;grid-template-columns:1fr 280px;overflow:hidden}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:16px}
.mega-item{display:flex;gap:12px;align-items:center;padding:10px;border-radius:12px;text-decoration:none;color:var(--ink)}
.mega-item:hover{background:var(--paper);color:var(--ink)}
.mega-item .thumb{width:52px;height:52px}
.mega-item b{display:block;font-size:15px}.mega-item small{color:var(--steel);font-size:13px}
.mega-promo{background:var(--dark);color:#C9CDD4;padding:24px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.mega-promo b{color:#fff;font-size:18px;line-height:1.3}.mega-promo p{font-size:14px}
.mega-all{color:#fff;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px;margin-top:auto}
.mega-sm{left:auto;right:auto;width:340px;margin-left:-20px}
.mega-list{grid-template-columns:1fr;padding:10px}
.hd-r{display:flex;align-items:center;gap:12px;flex:none}
.hd-cta{white-space:nowrap}
.icon-btn{width:44px;height:44px;border-radius:12px;border:1.5px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.icon-btn:hover{border-color:var(--dark)}
.hotline{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);line-height:1.15}
.hl-ic{width:40px;height:40px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center}
.hotline small{display:block;font-size:12px;color:var(--steel)}.hotline b{font-size:17px}
.menu-btn{display:none}
.search-pop{border-top:1px solid var(--line);background:#fff;padding:14px 0}
.search-pop .wrap{display:flex;align-items:center;gap:12px;color:var(--steel)}
.search-in{flex:1;border:0;font:inherit;font-size:17px;padding:8px 0;outline:none;color:var(--ink);background:transparent}
.tb-hot b{color:#fff;font-weight:700}
@media (max-width:1100px){
  .menu-btn{display:grid}
  .hd-r{margin-left:auto}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;padding:10px 24px 18px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(0,0,0,.25)}
  .nav.open{display:flex}
  .mega{display:none}
  .nav a.active::after{display:none}
}
@media (max-width:560px){.hd-cta{display:none}.tb-l a+a,.tb-soc{display:none}}

/* Footer */
.site-foot{margin-top:auto}
.btn-white{background:#fff;color:var(--ink)}.btn-white:hover{background:#F1F2F4;color:var(--ink)}
.btn-outline-white{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}.btn-outline-white:hover{border-color:#fff;color:#fff}
.btn-lg{min-height:52px;padding:0 26px;font-size:16px}
.prefoot{background:var(--accent);color:#fff}
.prefoot .wrap{display:flex;flex-wrap:wrap;gap:24px 40px;align-items:center;justify-content:space-between;padding-top:40px;padding-bottom:40px}
.pf-copy{flex:1 1 420px}.pf-copy h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:#fff}.pf-copy p{color:#FFE4D3;margin-top:8px}
.pf-act{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.pf-phone{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:24px;font-weight:800;margin-right:8px;line-height:1.1}
.pf-phone small{display:block;font-size:12px;font-weight:500;color:#FFE4D3}
.pf-phone:hover{color:#fff}
.footer{background:var(--ink);color:#AEB4BD;padding:64px 0 0;font-size:15px}
.footer a{color:#AEB4BD;text-decoration:none}.footer a:hover{color:#fff}
.ft-grid{display:grid;grid-template-columns:1.35fr .9fr 1fr 1.35fr;gap:40px}
.ft-brand{display:flex;flex-direction:column;gap:16px}
.footer h4{color:#fff;margin:0 0 14px;font-size:15px;letter-spacing:.01em}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.badges{display:flex;flex-wrap:wrap;gap:8px}
.badges span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#D9DCE1;border:1px solid #343B47;border-radius:999px;padding:5px 12px}
.soc{display:flex;gap:10px}
.soc a{width:40px;height:40px;border-radius:12px;background:#262D38;display:grid;place-items:center;color:#D9DCE1}
.soc a:hover{background:var(--accent);color:#fff}
.soc .zl{font-size:12px;font-weight:800}
.ft-contact p{display:flex;gap:12px;margin:0 0 14px;line-height:1.5}
.ft-contact b{display:block;color:#fff;font-size:14px;font-weight:600}
.ci{flex:none;width:32px;height:32px;border-radius:10px;background:#262D38;display:grid;place-items:center;color:var(--accent)}
.news-form{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.news-form label{color:#fff;font-weight:600;font-size:14px}
.news-form div{display:flex;gap:8px;background:#262D38;border-radius:12px;padding:5px}
.news-form input{flex:1;min-width:0;border:0;background:transparent;color:#fff;font:inherit;padding:0 10px;outline:none}
.news-form small{color:#9AA0A9}
.footer .legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid #343B47;margin-top:48px;padding:20px 0;font-size:13px;color:#8A919C}
.footer .legal span:last-child{display:flex;gap:18px}
@media (max-width:980px){.ft-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.ft-grid{grid-template-columns:1fr}}
.float{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:30}
.float a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;text-decoration:none;font-weight:800;font-size:13px;box-shadow:0 10px 24px -8px rgba(0,0,0,.45)}
.float .z{background:#0068FF}.float .p{background:var(--accent)}
.float .p::after{content:"";position:absolute;width:52px;height:52px;border-radius:50%;box-shadow:0 0 0 0 rgba(194,65,12,.5);animation:ring 2.4s infinite}
@keyframes ring{70%{box-shadow:0 0 0 14px rgba(194,65,12,0)}100%{box-shadow:0 0 0 0 rgba(194,65,12,0)}}
@media (prefers-reduced-motion:reduce){.float .p::after{animation:none}}

/* Hero slider */
.hs{position:relative;background:#EEF0F3;overflow:hidden}
.hs-track{display:grid}
.hs-slide{grid-area:1/1;position:relative;min-height:600px;display:flex;align-items:center;opacity:0;visibility:hidden;transition:opacity .7s,visibility .7s}
.hs-slide.on{opacity:1;visibility:visible}
.hs-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center}
.hs-slide.light::before,.hs-slide.dark::before{content:"";position:absolute;inset:0;z-index:1}
.hs-slide.light::before{background:linear-gradient(90deg,rgba(242,243,245,.96) 0%,rgba(242,243,245,.75) 38%,rgba(242,243,245,0) 62%)}
.hs-slide.dark{background:#2B3240}
.hs-slide.dark::before{background:linear-gradient(90deg,rgba(23,28,36,.92) 0%,rgba(23,28,36,.6) 42%,rgba(23,28,36,0) 66%)}
.hs-slide.care{background:radial-gradient(900px 500px at 78% 55%,#FFFFFF 0%,#ECEEF1 60%,#E3E6EA 100%)}
.hs-slide .wrap{position:relative;z-index:2;padding-top:64px;padding-bottom:150px}
.hs .copy{max-width:640px;display:flex;flex-direction:column;gap:18px}
.hs h1,.hs .h1{font-size:clamp(34px,4.4vw,54px);font-weight:800;line-height:1.1;letter-spacing:-.02em}
.hs .lede{font-size:18px;color:#3F4550;max-width:52ch}
.hs .dark h2,.hs .dark .eyebrow{color:#fff}.hs .dark .lede,.hs .dark .ticks{color:#C9CDD4}
.eyebrow{font-weight:700;color:var(--accent);font-size:15px}
.ticks{list-style:none;padding:0;margin:4px 0 0;display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:#3F4550;font-weight:500}
.ticks li{display:flex;align-items:center;gap:6px}.ticks svg{color:var(--accent)}
.hs-slide.on .copy>*{animation:rise .6s both}
.hs-slide.on .copy>*:nth-child(2){animation-delay:.06s}.hs-slide.on .copy>*:nth-child(3){animation-delay:.12s}.hs-slide.on .copy>*:nth-child(4){animation-delay:.18s}.hs-slide.on .copy>*:nth-child(5){animation-delay:.24s}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hs-art{position:absolute;right:max(24px,calc((100% - 1240px)/2));top:0;bottom:0;width:52%;z-index:1}
.hs-art img{position:absolute;object-fit:contain;filter:drop-shadow(0 24px 30px rgba(27,32,41,.18))}
.hs-art .a1{width:62%;right:6%;top:14%}.hs-art .a2{width:28%;left:4%;bottom:12%}.hs-art .a3{width:26%;left:30%;bottom:6%}.hs-art .a4{width:30%;right:2%;bottom:6%}
.hs-ctrl{position:absolute;left:0;right:0;bottom:80px;z-index:3;display:flex;justify-content:space-between;align-items:center;pointer-events:none}
.hs-ctrl>*{pointer-events:auto}
.hs-dots{display:flex;gap:8px}
.hs-dots button{width:28px;height:6px;border-radius:3px;border:0;background:rgba(27,32,41,.22);cursor:pointer;padding:0;transition:width .25s,background .25s}
.hs-dots button[aria-current="true"]{width:48px;background:var(--accent)}
.hs-arrows{display:flex;gap:8px}
.hs-arrows button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.hs-arrows button:hover{border-color:var(--dark)}
.trust-wrap{position:relative;z-index:5;margin-top:-56px}
.trust{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 50px -30px rgba(27,32,41,.35);display:grid;grid-template-columns:repeat(4,1fr)}
.trust>div{display:flex;gap:14px;align-items:center;padding:22px 24px;border-left:1px solid var(--line)}
.trust>div:first-child{border-left:0}
.t-ic{flex:none;width:46px;height:46px;border-radius:14px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center}
.trust b{display:block;font-size:16px}.trust small{color:var(--steel);font-size:13px}
@media (max-width:980px){.trust{grid-template-columns:1fr 1fr}.trust>div:nth-child(3){border-left:0}.trust>div:nth-child(n+3){border-top:1px solid var(--line)}}
@media (max-width:760px){
  .hs-slide{min-height:560px}.hs-bg{opacity:.12}.hs-art{opacity:.14;width:90%}
  .hs-slide.light::before,.hs-slide.dark::before{background:none}
  .hs-ctrl{bottom:76px}.hs-arrows{display:none}
}
@media (max-width:520px){.trust{grid-template-columns:1fr}.trust>div{border-left:0;border-top:1px solid var(--line)}.trust>div:first-child{border-top:0}}
@media (prefers-reduced-motion:reduce){.hs-slide,.hs-slide.on .copy>*{transition:none;animation:none}}

/* Bento danh mục */
.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(200px,auto);gap:16px;grid-auto-flow:dense}
.tile{position:relative;overflow:hidden;border-radius:20px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--ink);padding:22px 22px 64px;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s}
.tile:hover{border-color:var(--dark);box-shadow:0 22px 44px -30px rgba(27,32,41,.45);color:var(--ink)}
.tile h3{font-size:18px;font-weight:800;margin:10px 0 6px}
.tile p{font-size:14px;color:var(--steel);max-width:30ch}
.t-top{position:relative;z-index:2}
.cnt{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:3px 10px}
.t-img{position:absolute;right:10px;bottom:10px;width:48%;max-height:58%;object-fit:contain;transition:transform .35s}
.tile:hover .t-img,.tile:hover .t-collage img{transform:scale(1.05)}
.go{position:absolute;left:22px;bottom:20px;width:36px;height:36px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;color:var(--ink);transition:background .2s,color .2s,border-color .2s;z-index:2}
.tile:hover .go{background:var(--accent);border-color:var(--accent);color:#fff}
.tile:not(.wide):not(.big):not(.cta) .t-img{width:42%;max-height:42%;right:14px;bottom:14px}
.bento{grid-auto-rows:minmax(230px,auto)}
.tile.wide{grid-column:span 2}
.tile.wide p{max-width:26ch}
.tile.wide .t-img{width:46%;max-height:82%;right:16px;bottom:50%;transform:translateY(50%)}
.tile.wide:hover .t-img{transform:translateY(50%) scale(1.05)}
.tile.big{grid-column:span 2;grid-row:span 2;background:var(--dark);border-color:var(--dark);color:#fff}
.tile.big:hover{color:#fff;border-color:var(--accent)}
.tile.big h3{font-size:28px;color:#fff}.tile.big p{color:#C9CDD4;font-size:15px;max-width:34ch}
.tile.big .cnt{background:rgba(194,65,12,.2);color:#FFB487}
.t-models{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.t-models span{font-size:12px;font-weight:700;color:#D9DCE1;border:1px solid #47505E;border-radius:6px;padding:3px 8px}
.t-collage{position:absolute;right:0;bottom:0;width:78%;height:62%}
.t-collage img{position:absolute;object-fit:contain;filter:drop-shadow(0 18px 24px rgba(0,0,0,.35));transition:transform .35s}
.t-collage img:nth-child(1){width:52%;right:6%;bottom:12%}
.t-collage img:nth-child(2){width:44%;left:8%;bottom:4%}
.t-collage img:nth-child(3){width:34%;right:42%;top:2%}
.tile.big .go{border-color:#47505E;color:#fff}
.tile.cta{background:var(--accent);border-color:var(--accent);color:#fff;justify-content:space-between;padding-bottom:22px}
.tile.cta h3{color:#fff;font-size:20px;margin-top:0}.tile.cta p{color:#FFE4D3}
.tile.cta .btn{align-self:flex-start}
.tile.cta:hover{color:#fff;border-color:var(--accent-2);background:var(--accent-2)}
@media (max-width:980px){.bento{grid-template-columns:repeat(2,minmax(0,1fr))}.tile.big{grid-row:span 1;min-height:380px}}
@media (max-width:540px){.bento{grid-template-columns:1fr}.tile.wide,.tile.big{grid-column:span 1}.tile.wide .t-img{width:40%}}

/* Hero */
.hero{position:relative;background:#EEF0F3;overflow:hidden}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center}
.hero .wrap{position:relative;padding:96px 24px 110px}
.hero .copy{max-width:560px;display:flex;flex-direction:column;gap:20px}
.hero h1{font-size:clamp(34px,4.6vw,52px);font-weight:800;line-height:1.12}
.hero .lede{font-size:18px;color:#3F4550}
.hero.dark{background:#2B3240}.hero.dark h1,.hero.dark h2{color:#fff}.hero.dark p{color:#C9CDD4}
@media (max-width:760px){.hero>img{opacity:.25}}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.facts{background:#fff;border-bottom:1px solid var(--line)}
.facts .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.facts div{padding:24px 20px;border-left:1px solid var(--line)}.facts div:first-child{border-left:0}
.facts b{display:block;font-size:17px}.facts span{color:var(--steel);font-size:14px}

/* Cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.grid{display:grid;gap:20px}
.grid-prod{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.prod{display:flex;flex-direction:column;overflow:hidden}
.prod .ph{position:relative;display:flex;align-items:center;justify-content:center;background:var(--plate);height:210px;padding:16px}
.prod .ph img{max-width:100%;max-height:100%;object-fit:contain}
.tag{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
.prod .bd{padding:18px;display:flex;flex-direction:column;gap:6px;flex-grow:1}
.prod .cat{font-size:12px;color:var(--steel)}
.prod .code{font-size:22px;font-weight:800;color:var(--dark);text-decoration:none;line-height:1.1}
.prod h3{font-size:16px;font-weight:600}
.prod p{color:var(--steel);font-size:14px}
.prod .ft{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px}
.price{font-weight:700;color:var(--accent)}
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:16px}
.cat-tile{overflow:hidden;text-decoration:none;color:var(--ink);display:flex;flex-direction:column}
.cat-tile .ph{height:140px;background:var(--plate);display:flex;align-items:center;justify-content:center;padding:14px}
.cat-tile .ph img{max-height:100%;max-width:100%}
.cat-tile span{padding:12px 16px;font-weight:700}.cat-tile small{display:block;font-weight:400;color:var(--steel)}

/* Page head */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:32px 0 36px}
.page-head .wrap{display:flex;flex-direction:column;gap:12px}
.page-head h1{font-size:clamp(30px,4vw,42px);font-weight:800}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--steel)}
.crumbs a{color:var(--steel);text-decoration:none}

/* Forms */
label.lb{font-weight:600;font-size:14px}
.input{width:100%;min-height:44px;border:1.5px solid var(--line);background:#fff;border-radius:10px;padding:10px 14px;font:inherit;color:var(--ink)}
.input:focus{outline:none;border-color:var(--dark)}
.field{display:flex;flex-direction:column;gap:6px}
.check{display:flex;align-items:center;gap:10px;min-height:36px;font-size:15px;cursor:pointer}
.check input{width:18px;height:18px;accent-color:var(--accent)}
.check .n{margin-left:auto;font-size:13px;color:var(--steel)}

/* Shop layout */
.shop{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start}
.filters{flex:1 1 250px;max-width:290px;padding:22px;position:sticky;top:90px}
.filters fieldset{border:0;padding:0 0 16px;margin:0 0 16px;border-bottom:1px solid var(--line)}
.filters legend{font-weight:700;margin-bottom:6px;padding:0}
.shop-main{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:20px}
.toolbar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:38px;padding:0 14px;border-radius:999px;background:#fff;border:1.5px solid var(--line);font:inherit;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.chip[aria-pressed="true"]{background:var(--dark);border-color:var(--dark);color:#fff}
.empty{padding:40px 20px;text-align:center;color:var(--steel)}
@media (max-width:760px){.filters{position:static;max-width:none}}

/* Detail */
.detail{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start}
.gallery{flex:1 1 440px;display:flex;flex-direction:column;gap:12px}
.gallery .main{height:440px;display:flex;align-items:center;justify-content:center;padding:30px;background:#fff}
.gallery .main img{max-height:100%;max-width:100%;object-fit:contain}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}
.thumbs button{height:90px;border-radius:10px;border:1px solid var(--line);background:#fff;padding:6px;cursor:pointer}
.thumbs button[aria-current="true"]{border:2px solid var(--dark)}
.thumbs img{max-width:100%;max-height:100%}
.info{flex:1 1 400px;display:flex;flex-direction:column;gap:16px}
.info h1{font-size:52px;line-height:1;color:var(--dark);font-weight:800}
.buybox{background:var(--plate);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:12px}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{font-size:13px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 12px;text-decoration:none;color:var(--ink)}
table.specs{width:100%;border-collapse:collapse;font-size:15px}
table.specs th{text-align:left;width:220px;color:var(--steel);font-weight:500}
table.specs th,table.specs td{padding:13px 18px;border-bottom:1px solid var(--line)}
ul.feat{margin:0;padding-left:20px;display:grid;gap:4px}

/* Configurator */
.cfg{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start}
.cfg-form{flex:1 1 380px;max-width:460px;padding:24px;display:flex;flex-direction:column;gap:18px;position:sticky;top:90px}
.cfg-out{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;gap:18px}
.ind-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.ind-pick label{border:1.5px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;font-weight:600;font-size:14px;display:flex;gap:8px;align-items:center;background:#fff}
.ind-pick input{accent-color:var(--accent)}
.ind-pick label:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.num-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.cfg-table{width:100%;border-collapse:collapse;font-size:15px}
.cfg-table th{text-align:left;font-size:13px;color:var(--steel);font-weight:600;background:var(--paper);padding:10px 16px;border-bottom:1px solid var(--line)}
.cfg-table td{padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
.cfg-table .q{font-size:20px;font-weight:800;text-align:right;white-space:nowrap}
.thumb{width:56px;height:56px;border-radius:8px;background:var(--plate);display:inline-flex;align-items:center;justify-content:center;padding:4px;flex:none}
.thumb img{max-width:100%;max-height:100%}
.note{background:var(--accent-soft);border-radius:12px;padding:14px 18px;font-size:14px}
@media (max-width:760px){.cfg-form{position:static;max-width:none}}

/* Articles */
.art-card{overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:var(--ink)}
.art-card img{width:100%;height:200px;object-fit:cover;display:block}
.art-card .bd{padding:20px;display:flex;flex-direction:column;gap:8px}
.art-card .ind{font-size:13px;color:var(--accent);font-weight:700}
.art-card h3{font-size:19px;line-height:1.3}
.article{max-width:780px;margin:0 auto}
.article .cover{width:100%;border-radius:18px;max-height:440px;object-fit:cover;display:block}
.article .body{font-size:17px;line-height:1.75}
.article .body h2{font-size:24px;margin:36px 0 12px}
.article .body p,.article .body ul,.article .body ol{margin:0 0 14px}
.art-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}
.art-gallery img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px}
.art-prods{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin:12px 0 18px}
.mini{display:flex;gap:12px;align-items:center;padding:10px;text-decoration:none;color:var(--ink);font-size:14px;line-height:1.35}
.mini b{color:var(--dark)}
.logos{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;margin:12px 0}
.logos div{background:#fff;border:1px solid var(--line);border-radius:12px;aspect-ratio:8/5;display:flex;align-items:center;justify-content:center;padding:6px}
.logos img{max-width:100%;max-height:100%}
.cta-box{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center;padding:28px;margin-top:40px}

/* Contact */
.map{width:100%;height:420px;border:0;border-radius:16px;display:block}
.contact{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start}

@media print{.topbar,.header,.footer,.float,.cfg-form,.no-print{display:none!important}.cfg-out{flex-basis:100%}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.footer .logo{color:#fff}.footer .logo:hover{color:#fff}

/* ===== v3.1: logo, checkbox, đầu trang ===== */
.logo{flex-direction:column;align-items:flex-start;gap:3px}
.logo img{height:34px;width:auto;display:block}
.logo small{font-size:11px;color:var(--steel);letter-spacing:.01em;white-space:nowrap}
.footer .logo img{height:36px}
.footer .logo small{color:#9AA0A9}
.legal .lg-l{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.bct img{height:46px;width:auto;display:block}
@media (max-width:560px){.logo img{height:28px}.logo small{display:none}}

/* Checkbox */
.check{display:flex;align-items:flex-start;gap:12px;min-height:0;padding:7px 8px;margin:0 -8px;border-radius:8px;font-size:15px;line-height:1.4;cursor:pointer}
.check:hover{background:var(--paper)}
.check input{appearance:none;-webkit-appearance:none;flex:none;width:20px;height:20px;margin:0;border:1.5px solid #B4B9C1;border-radius:6px;background:#fff;display:grid;place-content:center;cursor:pointer;transition:background .12s,border-color .12s}
.check input::before{content:"";width:11px;height:11px;background:#fff;clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,80% 0,43% 62%);transform:scale(0);transition:transform .12s}
.check input:checked{background:var(--accent);border-color:var(--accent)}
.check input:checked::before{transform:scale(1)}
.check input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.check:has(input:checked){font-weight:600}
.check .n{margin-left:auto;flex:none;font-size:12px;font-weight:600;color:var(--steel);background:var(--plate);border-radius:999px;padding:1px 8px;margin-top:1px}

/* Chip dạng link */
a.chip{text-decoration:none;color:var(--ink)}a.chip:hover{border-color:var(--dark);color:var(--ink)}

/* Đầu trang trong */
.page-head{position:relative;overflow:hidden;background:radial-gradient(700px 320px at 85% 60%,#FFFFFF 0%,rgba(255,255,255,0) 70%),linear-gradient(120deg,#FFFFFF 0%,#EEF0F3 100%);padding:40px 0 48px}
.page-head .wrap{position:relative;z-index:2}
.page-head h1{max-width:16ch}
.page-head .muted{max-width:560px}
.ph-art{position:absolute;top:0;bottom:0;right:max(24px,calc((100% - 1240px)/2));width:40%;z-index:1;pointer-events:none}
.ph-art img{position:absolute;object-fit:contain;filter:drop-shadow(0 18px 22px rgba(27,32,41,.16))}
.ph-art .pa1{width:46%;right:30%;bottom:8%}
.ph-art .pa2{width:34%;right:0;top:10%}
.ph-art .pa3{width:28%;right:6%;bottom:4%}
@media (max-width:900px){.ph-art{display:none}}
.ph-art .pa1{width:36%;left:0;right:auto;bottom:14%;top:auto}
.ph-art .pa2{width:28%;left:38%;right:auto;bottom:16%;top:auto}
.ph-art .pa3{width:30%;right:0;left:auto;bottom:14%;top:auto}
.filters{flex:1 1 280px;max-width:310px}
.filters .check{font-size:14.5px}

/* ===== v5: thanh danh mục, bộ lọc theo danh mục, giao diện điện thoại giống máy tính ===== */
.cat-bar{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--line);padding-bottom:0;-webkit-overflow-scrolling:touch}
.cat-bar::-webkit-scrollbar{display:none}
.cat-tab{flex:none;background:none;border:0;border-bottom:3px solid transparent;padding:10px 12px;font:inherit;font-size:15px;font-weight:600;color:var(--steel);cursor:pointer;white-space:nowrap;display:inline-flex;gap:6px;align-items:center;margin-bottom:-1px}
.cat-tab span{font-size:12px;color:var(--steel);background:var(--plate);border-radius:999px;padding:0 7px;font-weight:600}
.cat-tab:hover{color:var(--ink)}
.cat-tab[aria-pressed="true"]{color:var(--ink);border-bottom-color:var(--accent)}
.cat-tab[aria-pressed="true"] span{background:var(--accent-soft);color:var(--accent)}
.cur-cat{display:flex;gap:12px;align-items:center;padding:10px;border-radius:12px;background:var(--paper);margin-bottom:8px}
.cur-cat b{display:block;font-size:15px}.cur-cat small{color:var(--steel);font-size:13px}
.link-btn{background:none;border:0;padding:4px 0;font:inherit;font-size:14px;font-weight:600;color:var(--accent);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
button.check{width:calc(100% + 16px);background:none;border:0;font:inherit;text-align:left;color:var(--ink)}
.check .dot{flex:none;width:8px;height:8px;border-radius:50%;background:#B4B9C1;margin:7px 6px 0}
.cat-pick:hover .dot{background:var(--accent)}
.filter-toggle{display:none}

/* Điện thoại: bố cục giống máy tính – lưới 2 cột, thẻ gọn */
@media (max-width:760px){
  .section{padding:48px 0}
  .wrap{padding:0 14px}
  .grid-prod{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .prod .ph{height:130px;padding:10px}
  .prod .bd{padding:10px 10px 12px;gap:3px}
  .prod .cat{display:none}
  .prod .code{font-size:16px}
  .prod h3{font-size:13px;line-height:1.35}
  .prod p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:12px;line-height:1.45}
  .prod .ft{padding-top:8px;flex-wrap:wrap;gap:6px}
  .prod .ft .price{font-size:13px}
  .prod .ft .btn{min-height:34px;padding:0 10px;font-size:12px;width:100%}
  .tag{font-size:10px;padding:2px 8px;top:8px;left:8px}
  .cat-tab{font-size:14px;padding:9px 10px}
  .shop{gap:14px}
  .filter-toggle{display:inline-flex}
  .filters{display:none;max-width:none;flex-basis:100%;order:2}
  .filters.open{display:block}
  .shop-main{order:3}
  .toolbar label{font-size:13px}
  .art-prods{grid-template-columns:1fr 1fr}
  .grid-prod.news{grid-template-columns:1fr}
}
@media (max-width:360px){.grid-prod{gap:8px}.prod .code{font-size:15px}}
.cat-bar{flex-wrap:wrap;position:relative}
@media (max-width:760px){.cat-bar{flex-wrap:nowrap}}

/* ===== v6: banner lớn, danh mục dạng danh sách ===== */
.cat-pick{border-radius:8px}
.cat-pick.on{background:var(--accent-soft);font-weight:700}
.cat-pick.on .dot{background:var(--accent);box-shadow:0 0 0 3px rgba(194,65,12,.2)}
.cat-pick.on .n{background:#fff;color:var(--accent)}
.pbanner,.sbanner{position:relative;overflow:hidden;background:#EEF0F3;min-height:440px;display:flex;align-items:center}
.pb-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center}
.pbanner::before,.sbanner::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(242,243,245,.97) 0%,rgba(242,243,245,.8) 40%,rgba(242,243,245,0) 64%)}
.pbanner .wrap,.sbanner .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:64px}
.pb-copy{max-width:600px;display:flex;flex-direction:column;gap:14px}
.pb-copy h1{font-size:clamp(32px,4.2vw,50px);font-weight:800;line-height:1.1;letter-spacing:-.02em}
.pb-copy p{font-size:18px;color:#3F4550;max-width:50ch}
.pb-count{align-self:flex-start;font-size:13px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:3px 12px}
.pbanner.dark,.sbanner{background:#2B3240}
.pbanner.dark::before,.sbanner::before{background:linear-gradient(90deg,rgba(23,28,36,.94) 0%,rgba(23,28,36,.7) 42%,rgba(23,28,36,0) 68%)}
.pbanner.dark h1,.sbanner h1{color:#fff}
.pbanner.dark p,.sbanner p{color:#C9CDD4}
.pbanner.dark .crumbs,.pbanner.dark .crumbs a,.sbanner .crumbs,.sbanner .crumbs a{color:#AEB4BD}
.pbanner.dark .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.pbanner.dark .pb-count{background:rgba(194,65,12,.25);color:#FFB487}
.sb-chips .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff}
.sb-chips .chip:hover{background:#fff;color:var(--ink)}
.sol-banners{margin-top:-40px;position:relative;z-index:3}
.sol-banners .wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.sb-card{position:relative;display:block;border-radius:20px;overflow:hidden;box-shadow:0 26px 50px -30px rgba(27,32,41,.5);text-decoration:none}
.sb-card img{width:100%;display:block;aspect-ratio:2000/1414;object-fit:cover;transition:transform .4s}
.sb-card:hover img{transform:scale(1.03)}
.sb-cap{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(255,255,255,.95);border-radius:14px;padding:12px 16px;display:flex;flex-direction:column;color:var(--ink)}
.sb-cap b{font-size:17px}.sb-cap span{font-size:14px;color:var(--steel)}
@media (max-width:760px){
  .pbanner,.sbanner{min-height:360px}
  .pb-bg{opacity:.14}
  .pbanner::before,.sbanner::before{background:none}
  .pbanner.dark .pb-bg,.sbanner .pb-bg{opacity:.22}
  .pb-copy p{font-size:16px}
  .sol-banners{margin-top:16px}
  .sol-banners .wrap{grid-template-columns:1fr}
}
.sbanner .wrap{padding-bottom:96px}@media (max-width:760px){.sbanner .wrap{padding-bottom:48px}}

/* ===== v7: tổng quan ngành (Giải pháp) ===== */
.ind-overview{margin-top:-48px;position:relative;z-index:3}
.ind-feats{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ind-feat{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 28px 54px -36px rgba(27,32,41,.45)}
.if-img{display:block;overflow:hidden;background:#1B2029}
.if-img img{width:100%;aspect-ratio:2000/1414;object-fit:cover;display:block;transition:transform .45s}
.if-img:hover img{transform:scale(1.03)}
.if-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:16px;flex-grow:1}
.if-body h2{font-size:22px;font-weight:800}
.if-pts{list-style:none;margin:0;padding:0;display:grid;gap:8px;color:#3F4550;font-size:15px}
.if-pts li{display:flex;gap:10px;align-items:flex-start}
.if-pts svg{flex:none;color:var(--accent);margin-top:3px}
.if-models{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.if-models a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px 8px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);font-size:12px;font-weight:700;background:var(--paper)}
.if-models a:hover{border-color:var(--dark);color:var(--ink)}
.if-models img{height:46px;width:100%;object-fit:contain}
.if-act{margin-top:auto;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding-top:4px}
.if-link{display:inline-flex;align-items:center;gap:4px;font-weight:700;font-size:14px;text-decoration:none;color:var(--ink)}
.if-link:hover{color:var(--accent)}
.ind-minis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.ind-mini{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 16px 12px 12px;text-decoration:none;color:var(--ink)}
.ind-mini:hover{border-color:var(--dark);color:var(--ink)}
.im-ph{flex:none;width:72px;height:60px;border-radius:12px;background:var(--plate);display:flex;align-items:center;justify-content:center;padding:6px}
.im-ph img{max-width:100%;max-height:100%}
.im-tx{flex:1;display:flex;flex-direction:column;line-height:1.35}
.im-tx b{font-size:16px}.im-tx span{font-size:13px;color:var(--steel)}
.im-go{flex:none;width:34px;height:34px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center}
.ind-mini:hover .im-go{background:var(--accent);border-color:var(--accent);color:#fff}
@media (max-width:900px){.ind-feats,.ind-minis{grid-template-columns:1fr}}
@media (max-width:760px){.ind-overview{margin-top:16px}.if-body{padding:18px}.if-models{grid-template-columns:repeat(2,1fr)}}

/* ===== v8: Tin tức, Liên hệ, footer điện thoại ===== */
.news-hero{background:#fff;border-bottom:1px solid var(--line);padding:30px 0 40px}
.nh-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:10px 40px;margin-bottom:24px}
.nh-top h1{font-size:clamp(28px,3.4vw,40px);font-weight:800;margin-top:10px}
.nh-top p{max-width:46ch}
.nh-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:22px}
.nh-feat{position:relative;display:block;border-radius:20px;overflow:hidden;min-height:420px;height:100%;text-decoration:none;color:#fff;background:#1B2029}
.nh-feat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.nh-feat:hover img{transform:scale(1.03)}
.nh-feat::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,20,26,0) 30%,rgba(17,20,26,.88) 100%)}
.nh-feat-tx{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:28px;display:flex;flex-direction:column;gap:8px}
.nh-feat-tx .ind{font-size:13px;font-weight:700;color:#FFB487}
.nh-feat-tx b{font-size:clamp(22px,2.4vw,30px);line-height:1.25}
.nh-feat-tx>span:not(.ind):not(.nh-read){color:#D9DCE1;max-width:60ch}
.nh-read{align-self:flex-start;margin-top:6px;background:var(--accent);color:#fff;font-weight:700;font-size:14px;border-radius:999px;padding:8px 16px}
.nh-feat:hover{color:#fff}
.nh-side{display:flex;flex-direction:column;gap:12px}
.nh-item{display:flex;gap:14px;align-items:center;text-decoration:none;color:var(--ink);padding:10px;border:1px solid var(--line);border-radius:14px;background:#fff}
.nh-item:hover{border-color:var(--dark);color:var(--ink)}
.nh-item img{width:110px;height:78px;border-radius:10px;object-fit:cover;flex:none}
.nh-item .ind{display:block;font-size:12px;font-weight:700;color:var(--accent)}
.nh-item b{font-size:15px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nh-cta{margin-top:auto;display:flex;flex-direction:column;gap:2px;padding:16px 18px;border-radius:14px;background:var(--dark);color:#fff;text-decoration:none}
.nh-cta span{color:#FFB487;font-weight:600;font-size:14px}.nh-cta:hover{color:#fff;background:#3A4250}
@media (max-width:900px){.nh-grid{grid-template-columns:1fr}.nh-feat{min-height:320px}}

.contact-hero{background:var(--dark);color:#C9CDD4;padding:34px 0 0;position:relative}
.contact-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:56px;background:var(--paper)}
.contact-hero .wrap{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px}
.contact-hero .crumbs,.contact-hero .crumbs a{color:#AEB4BD}
.contact-hero h1{color:#fff;font-size:clamp(30px,4vw,44px);font-weight:800}
.contact-hero p{max-width:58ch}
.qa{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.qa-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;text-decoration:none;color:var(--ink);box-shadow:0 20px 40px -28px rgba(27,32,41,.45)}
.qa-card:hover{border-color:var(--accent);color:var(--ink)}
.qa-card small{display:block;font-size:13px;color:var(--steel)}
.qa-card b{font-size:20px;letter-spacing:.01em}
.qa-ic{flex:none;width:48px;height:48px;border-radius:14px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center}
.qa-ic.zl{background:#E6F0FF;color:#0068FF;font-weight:800;font-size:13px}
.qa-card.hot{background:var(--accent);border-color:var(--accent);color:#fff}
.qa-card.hot small{color:#FFE4D3}.qa-card.hot .qa-ic{background:rgba(255,255,255,.18);color:#fff}
.qa-card.hot:hover{background:var(--accent-2);color:#fff}
@media (max-width:900px){.qa{grid-template-columns:1fr}}
.contact2{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:start}
.ct-info{display:flex;flex-direction:column;gap:18px}
.ct-card{padding:24px;display:flex;flex-direction:column;gap:14px}
.ct-card h2,.ct-form h2{font-size:22px;font-weight:800}
.ct-co{font-weight:700;color:var(--dark);font-size:15px;margin-top:-6px}
.ct-row{display:flex;gap:14px;align-items:flex-start;padding-top:14px;border-top:1px solid var(--line);line-height:1.5}
.ct-row small{display:block;font-size:13px;color:var(--steel);font-weight:600}
.ct-ic{flex:none;width:38px;height:38px;border-radius:12px;background:var(--plate);color:var(--accent);display:grid;place-items:center}
.ct-row a{color:var(--ink);font-weight:600;text-decoration:none}.ct-row a:hover{color:var(--accent)}
.ct-mail{display:flex;align-items:center;gap:8px}
.copy-btn{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;color:var(--steel)}
.copy-btn.ok{background:var(--ok);border-color:var(--ok);color:#fff}
.ct-map{overflow:hidden}
.ct-map .map{height:280px;border-radius:0}
.ct-map-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px}
.ct-map-bar small{display:block;color:var(--steel);font-size:13px}
.ct-form{padding:28px;display:flex;flex-direction:column;gap:16px}
.need{border:0;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.need legend{margin-bottom:6px}
.ct-alt{font-size:14px;color:var(--steel);border-top:1px solid var(--line);padding-top:14px}
@media (max-width:900px){.contact2{grid-template-columns:1fr}.need{grid-template-columns:1fr}}

/* Footer accordion */
.ft-acc summary{list-style:none;cursor:default}
.ft-acc summary::-webkit-details-marker{display:none}
.ft-sub{margin-top:18px!important;padding-top:16px!important;border-top:1px solid #343B47}
.mbar{display:none}
@media (max-width:760px){
  .footer{padding-top:36px}
  .ft-grid{gap:0}
  .ft-brand{padding-bottom:22px}
  .ft-acc{border-top:1px solid #343B47}
  .ft-acc summary{cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:16px 0}
  .ft-acc summary h4{margin:0}
  .ft-acc summary::after{content:"+";font-size:22px;color:#AEB4BD;line-height:1}
  .ft-acc[open] summary::after{content:"–"}
  .ft-acc ul{padding-bottom:16px}
  .ft-contact{border-top:1px solid #343B47;padding-top:18px}
  .footer .legal{margin-top:24px}
  .float{display:none}
  .mbar{display:grid;grid-template-columns:1fr 1fr 1.2fr;position:fixed;left:0;right:0;bottom:0;z-index:45;background:#fff;border-top:1px solid var(--line);box-shadow:0 -10px 30px -18px rgba(0,0,0,.3);padding-bottom:env(safe-area-inset-bottom,0px)}
  .mbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:60px;text-decoration:none;color:var(--ink);font-size:12px;font-weight:600}
  .mbar .zl{font-size:13px;color:#0068FF;line-height:20px}
  .mbar .mb-cta{background:var(--accent);color:#fff}
  .mbar a:first-child{color:var(--accent)}
  body{padding-bottom:60px}
}

/* ===== v9: chống sao chép (trừ thông tin liên hệ) ===== */
html.protect body{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
html.protect img{-webkit-user-drag:none;user-drag:none;pointer-events:auto}
html.protect .allow-copy,html.protect .allow-copy *,html.protect a[href^="tel:"],html.protect a[href^="mailto:"],html.protect input,html.protect textarea,html.protect select{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}

/* ===== v10: sửa giao diện điện thoại ===== */
@media (max-width:640px){
  .tile.big{padding-bottom:70px}
  .t-collage{position:relative;right:auto;bottom:auto;width:100%;height:210px;margin-top:16px}
  .t-collage img:nth-child(1){width:46%;right:4%;bottom:6%}
  .t-collage img:nth-child(2){width:40%;left:4%;bottom:0}
  .t-collage img:nth-child(3){width:30%;right:40%;top:0}
}

.logos-more{display:none}
@media (max-width:640px){
  /* Ô cam kết 2 x 2 */
  .trust{grid-template-columns:1fr 1fr}
  .trust>div{padding:14px;gap:10px;border-left:1px solid var(--line);border-top:0;align-items:flex-start;flex-direction:column}
  .trust>div:nth-child(odd){border-left:0}
  .trust>div:nth-child(n+3){border-top:1px solid var(--line)}
  .t-ic{width:38px;height:38px;border-radius:12px}
  .trust b{font-size:15px}.trust small{font-size:12px}
  .trust-wrap{margin-top:-40px}
  .hs-slide .wrap{padding-top:40px;padding-bottom:120px}
  .hs .lede{font-size:16px}
  .hs .actions .btn{flex:1 1 auto}
  .ticks{font-size:13px;gap:6px 14px}
  /* Danh mục: 2 cột, ô nhỏ gọn */
  .bento{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:auto;gap:10px}
  .tile.big,.tile.wide,.tile.cta{grid-column:span 2}
  .tile{padding:16px 16px 56px;min-height:190px}
  .tile h3{font-size:16px;margin:8px 0 4px}
  .tile:not(.big):not(.cta) p{max-width:58%;font-size:13px}
  .tile:not(.wide):not(.big):not(.cta) p{display:none}
  .tile:not(.wide):not(.big):not(.cta) .t-img{width:58%;max-height:46%;right:10px;bottom:10px}
  .tile.wide{min-height:170px}
  .tile.wide .t-img{width:38%;max-height:70%;right:10px}
  .go{left:16px;bottom:14px;width:32px;height:32px}
  .tile.cta{min-height:0;padding-bottom:16px;gap:12px}
  /* Khách hàng: 3 cột, hiện 12 logo */
  .logos{grid-template-columns:repeat(3,1fr);gap:8px}
  .logos div{border-radius:10px;padding:4px}
  #homeClients:not(.all) .logos div:nth-child(n+13){display:none}
  .logos-more{display:flex;margin:14px auto 0}
  /* Bài viết trang chủ: vuốt ngang */
  #homeNews{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding-bottom:6px;margin:0 -14px;padding-left:14px;padding-right:14px;scrollbar-width:none}
  #homeNews::-webkit-scrollbar{display:none}
  #homeNews .art-card{flex:0 0 82%;scroll-snap-align:start}
  #homeNews .art-card img{height:170px}
  /* Ảnh in logo: 2 x 2 */
  .section .wrap>div[style*="repeat(4,1fr)"]{grid-template-columns:repeat(2,1fr)!important}
}
@media (max-width:640px){
  #homeNews{scroll-padding-left:14px}
  .section .wrap>div[style*="repeat(4,1fr)"] img{aspect-ratio:1/1!important}
}
@media (max-width:640px){
  .gallery .main{height:300px;padding:18px}
  .thumbs{grid-template-columns:repeat(4,1fr)}.thumbs button{height:70px}
  .info h1{font-size:40px}
  .detail{gap:24px}
  #solList section>div:first-child{display:none}
  #solList{gap:48px!important;padding-top:36px!important}
  .contact-hero .qa-card b{font-size:18px}
}