/* Phụ Liệu Giá Sỉ – giao diện v3 (catalogue B2B cao cấp) */
:root{
  --bg:#fff;--bg2:#f4f6f9;--bg3:#eaeef3;--line:#e3e8ee;--line2:#d0d8e1;
  --ink:#121c27;--ink2:#4d5966;--ink3:#7a8592;
  --navy:#0f2a47;--navy2:#0a1f36;--navy3:#163a61;--steel:#2f6ea5;--steel2:#5b93c4;--tint:#eaf2f9;
  --ok:#23845a;--zalo:#0068ff;--warn:#b42318;
  --r:12px;--r-sm:8px;--max:1240px;--hdr:76px;
  --sh1:0 1px 2px rgba(15,42,71,.06),0 1px 3px rgba(15,42,71,.06);
  --sh2:0 10px 30px -12px rgba(15,42,71,.25);
  --sh3:0 24px 60px -24px rgba(15,42,71,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--steel);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.ico{width:18px;height:18px;flex-shrink:0}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:200}
.skip:focus{left:8px;top:8px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;font-weight:600;font-size:14.5px;border:1.5px solid transparent;white-space:nowrap;transition:background .2s,border-color .2s,color .2s,transform .2s,box-shadow .2s}
.btn-p{background:var(--navy);color:#fff;box-shadow:0 6px 16px -8px rgba(15,42,71,.7)}
.btn-p:hover{background:var(--navy3);transform:translateY(-1px)}
.btn-o{border-color:var(--line2);color:var(--navy);background:#fff}
.btn-o:hover{border-color:var(--navy);background:var(--tint)}
.btn-g{background:var(--bg3);color:var(--ink)}.btn-g:hover{background:var(--line)}
.btn-light{background:#fff;color:var(--navy)}.btn-light:hover{background:var(--tint);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.35)}.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-w{width:100%}
.btn[disabled]{opacity:.6;cursor:default;transform:none}

/* ===== A. Topbar ===== */
.topbar{background:var(--navy2);color:#b9c9da;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:12px}
.topbar .l{display:flex;gap:22px;align-items:center}
.topbar .l a{display:flex;gap:7px;align-items:center;white-space:nowrap}
.topbar .l a:hover{color:#fff}
.topbar .ico{width:14px;height:14px;opacity:.85}
.tb-btn{background:rgba(255,255,255,.1);color:#fff;font-weight:600;padding:5px 14px;border-radius:999px;font-size:12.5px;border:1px solid rgba(255,255,255,.18)}
.tb-btn:hover{background:#fff;color:var(--navy)}
@media(max-width:700px){.topbar .l a.hide-sm{display:none}}

/* ===== B. Header ===== */
header.hd{background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;transition:box-shadow .25s}
header.hd.sh{box-shadow:0 8px 24px -16px rgba(15,42,71,.35)}
.hd-row{display:flex;align-items:center;gap:28px;height:var(--hdr)}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:46px;height:46px;border-radius:12px;background:linear-gradient(145deg,var(--navy3),var(--navy2));color:#cfe0f0;display:grid;place-items:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.15),0 6px 14px -6px rgba(15,42,71,.6)}
.brand-img{height:50px;width:auto;max-width:190px;object-fit:contain}
.brand b{display:block;font-size:18px;line-height:1.15;color:var(--navy);letter-spacing:.3px;font-weight:700}
.brand small{display:block;font-size:12px;color:var(--ink3);line-height:1.35;margin-top:2px}
.search{flex:1;max-width:640px;position:relative}
.search form{display:flex;background:var(--bg2);border:1.5px solid transparent;border-radius:999px;transition:border-color .2s,background .2s,box-shadow .2s}
.search form:focus-within{background:#fff;border-color:var(--steel2);box-shadow:0 0 0 4px rgba(47,110,165,.12)}
.search input{flex:1;min-width:0;height:48px;border:0;background:transparent;padding:0 20px;outline:none;font-size:15px}
.search button{height:40px;margin:4px;border:0;background:var(--navy);color:#fff;padding:0 18px;border-radius:999px;display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px}
.search button:hover{background:var(--navy3)}
.sg{position:absolute;top:56px;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh3);display:none;z-index:60;max-height:440px;overflow:auto;padding:6px 0}
.sg.on{display:block}
.sg .h{font-size:11.5px;color:var(--ink3);text-transform:uppercase;letter-spacing:.8px;padding:10px 16px 4px;font-weight:600}
.sg a{display:flex;gap:12px;align-items:center;padding:8px 16px;font-size:14px}
.sg a:hover,.sg a:focus{background:var(--bg2);outline:none}
.sg a img{width:40px;height:40px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}
.sg a .t{flex:1;min-width:0}
.sg a small{display:block;color:var(--ink3);font-size:12px}
.sg mark{background:#fff0b3;color:inherit;border-radius:2px}
.sg .chips{display:flex;flex-wrap:wrap;gap:6px;padding:6px 16px 12px}
.sg .chips a{padding:5px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px}
.hd-cta{display:flex;gap:8px;flex-shrink:0}
.mb{display:none;width:46px;height:46px;border:1.5px solid var(--line2);border-radius:12px;background:#fff;place-items:center}

nav.nav{border-top:1px solid var(--line)}
nav.nav>.wrap>ul{list-style:none;display:flex;gap:4px;align-items:center;height:50px}
nav.nav>.wrap>ul>li{position:relative}
.nl{display:flex;align-items:center;gap:5px;padding:9px 14px;font-weight:600;font-size:14.5px;border-radius:999px;background:none;border:0;color:var(--ink2);transition:color .2s,background .2s}
.nl:hover,.nl.act{color:var(--navy);background:var(--tint)}
.mega{position:absolute;top:48px;left:0;width:min(1000px,calc(100vw - 40px));background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh3);padding:24px;display:none;grid-template-columns:repeat(4,1fr);gap:24px;z-index:55}
li.has:hover .mega,li.has:focus-within .mega{display:grid}
.mega h4{font-size:11.5px;text-transform:uppercase;letter-spacing:.9px;color:var(--steel);margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.mega a.mi{display:flex;gap:10px;align-items:center;font-size:13.5px;padding:6px;margin:0 -6px;border-radius:10px;color:var(--ink);line-height:1.35}
.mega a.mi:hover{background:var(--bg2);color:var(--navy)}
.mega a.mi img{width:40px;height:40px;border-radius:8px;object-fit:cover;background:var(--bg2);flex-shrink:0}
.mega .all{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--ink2);gap:12px;flex-wrap:wrap}
.mega .all a{color:var(--steel);font-weight:600}
.mega:empty{display:none!important}
@media(max-width:1000px){
  .hd-row{height:auto;flex-wrap:wrap;padding:12px 20px;gap:12px}
  .search{order:3;flex-basis:100%;max-width:none}
  .hd-cta{display:none}
  .mb{display:grid;margin-left:auto}
  nav.nav{display:none;max-height:calc(100vh - 150px);overflow:auto}
  nav.nav.open{display:block}
  nav.nav>.wrap>ul{flex-direction:column;align-items:stretch;height:auto;padding:8px 0}
  .nl{width:100%;justify-content:space-between;padding:12px 10px;font-size:15.5px;border-radius:10px}
  .mega{position:static;width:auto;box-shadow:none;border:0;padding:0 6px 8px;grid-template-columns:1fr;gap:14px;display:none}
  li.has.open .mega{display:grid}
  li.has:hover .mega{display:none}li.has.open:hover .mega{display:grid}
}

/* ===== C. Hero ===== */
.hero{position:relative;color:#fff;overflow:hidden;background:radial-gradient(1200px 600px at 85% -10%,#24527f 0%,rgba(36,82,127,0) 60%),radial-gradient(800px 500px at -10% 110%,#173e66 0%,rgba(23,62,102,0) 60%),linear-gradient(160deg,var(--navy) 0%,var(--navy2) 100%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%)}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:64px;padding-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:#cfe0f0;text-transform:uppercase;letter-spacing:1.2px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);padding:6px 14px;border-radius:999px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:#6fd3a5;box-shadow:0 0 0 4px rgba(111,211,165,.18)}
.hero h1{font-size:50px;line-height:1.18;font-weight:700;margin:20px 0 16px;letter-spacing:-.5px}
.hero h1 span{display:block;padding:.12em 0 .04em;background:linear-gradient(90deg,#d8e6f3,#8fb8de 60%,#c9d9e8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.sub{font-size:17.5px;color:#c4d4e4;max-width:560px}
.hero-find{display:flex;align-items:center;gap:10px;background:#fff;border-radius:999px;padding:6px 6px 6px 20px;margin-top:28px;max-width:580px;box-shadow:0 18px 40px -18px rgba(0,0,0,.6)}
.hero-find .ico{color:var(--ink3)}
.hero-find input{flex:1;min-width:0;border:0;outline:none;height:46px;font-size:15.5px;color:var(--ink);background:transparent}
.hero-find button{height:46px;border:0;border-radius:999px;background:var(--navy);color:#fff;padding:0 22px;font-weight:600;white-space:nowrap}
.hero-find button:hover{background:var(--navy3)}
.hero .chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:16px;font-size:13px}
.hero .chips span{color:#9fb6cc}
.hero .chips a{padding:5px 13px;border:1px solid rgba(255,255,255,.22);border-radius:999px;color:#e3edf6;transition:background .2s}
.hero .chips a:hover{background:rgba(255,255,255,.12)}
.hero .ctas{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.hero-visual{position:relative;padding:24px 0 40px 32px}
.hv-frame{border-radius:28px;overflow:hidden;aspect-ratio:5/4;background:#1d4167;box-shadow:var(--sh3);border:1px solid rgba(255,255,255,.12);transform:rotate(1.5deg)}
.hv-frame img{width:100%;height:100%;object-fit:cover;object-position:50% 85%}
.hf{position:absolute;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.97);color:var(--ink);border-radius:16px;padding:10px 16px 10px 10px;box-shadow:var(--sh3);max-width:280px;transition:transform .25s}
.hf:hover{transform:translateY(-3px)}
.hf img{width:56px;height:56px;border-radius:10px;object-fit:cover;background:var(--bg2);flex-shrink:0}
.hf small{display:block;font-size:11.5px;color:var(--steel);font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.hf b{display:block;font-size:14px;line-height:1.3}
.hf1{left:-8px;bottom:6px}
.hf2{right:-12px;top:0}
.stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12);border-radius:18px;overflow:hidden;margin:8px 0 48px}
.stats div{background:rgba(10,31,54,.55);padding:18px 22px;backdrop-filter:blur(6px)}
.stats b{display:block;font-size:26px;line-height:1.1;font-weight:700;color:#fff}
.stats span{font-size:13px;color:#a9bfd4}
@media(max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:28px;padding-top:36px;padding-bottom:20px}
  .hero h1{font-size:34px}
  .hero-visual{padding:8px 0 24px}
  .hv-frame{aspect-ratio:16/10;transform:none;border-radius:20px}
  .hf{max-width:240px}.hf2{display:none}.hf1{left:12px;bottom:0}
  .stats{grid-template-columns:repeat(2,1fr);margin-bottom:32px}
}
@media(max-width:560px){
  .hero h1{font-size:28px}
  .hero p.sub{font-size:15.5px}
  .hero-find{padding:5px 5px 5px 14px}
  .hero-find button{padding:0 14px;font-size:13.5px}
  .hero-find .ico{display:none}
  .hero .ctas .btn{flex:1}
  .stats div{padding:14px 16px}.stats b{font-size:21px}
}

/* ===== Sections ===== */
section.s{padding:72px 0}
section.s.alt{background:var(--bg2)}
.sh2{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.sh2.center{justify-content:center;text-align:center}
.kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--steel);margin-bottom:8px}
.sh2 h2{font-size:32px;line-height:1.2;font-weight:700;letter-spacing:-.3px}
.sh2 p{color:var(--ink2);font-size:15px;margin-top:6px}
.sh2 .more{color:var(--navy);font-weight:600;font-size:14.5px;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--line2);border-radius:999px;background:#fff;transition:border-color .2s,background .2s}
.sh2 .more:hover{border-color:var(--navy);background:var(--tint)}
@media(max-width:640px){section.s{padding:48px 0}.sh2 h2{font-size:24px}.sh2{margin-bottom:20px}}

/* ===== Apps (chọn theo ứng dụng) ===== */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app{position:relative;display:block;border-radius:20px;overflow:hidden;aspect-ratio:16/10;background:var(--navy3);isolation:isolate;box-shadow:var(--sh1)}
.app img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1);z-index:-2}
.app::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,31,54,0) 30%,rgba(10,31,54,.88) 100%);z-index:-1}
.app:hover img{transform:scale(1.06)}
.app-t{position:absolute;left:22px;right:70px;bottom:20px;color:#fff}
.app-t b{display:block;font-size:20px;line-height:1.2}
.app-t small{display:block;font-size:13.5px;color:#cbd9e7;margin-top:4px}
.app-go{position:absolute;right:20px;bottom:20px;width:42px;height:42px;border-radius:50%;background:#fff;color:var(--navy);display:grid;place-items:center;font-weight:700;transition:transform .25s}
.app:hover .app-go{transform:translateX(3px)}
@media(max-width:900px){.apps{grid-template-columns:repeat(2,1fr);gap:12px}.app-t b{font-size:17px}.app-t{left:16px;bottom:14px;right:60px}.app-go{right:14px;bottom:14px;width:36px;height:36px}}
@media(max-width:520px){.apps{grid-template-columns:1fr}.app{aspect-ratio:16/8}}

/* ===== D. Categories ===== */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.tab{border:1px solid var(--line2);background:#fff;border-radius:999px;padding:8px 16px;font-size:13.5px;color:var(--ink2);font-weight:500;transition:all .2s}
.tab.on,.tab:hover{border-color:var(--navy);color:#fff;background:var(--navy)}
.cats{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cat{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;transition:transform .25s,box-shadow .25s,border-color .25s}
.cat:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:transparent}
.cat .im{aspect-ratio:1/1;border-radius:12px;overflow:hidden;background:var(--bg2)}
.cat .im img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.cat:hover .im img{transform:scale(1.05)}
.cat h3{font-size:14px;font-weight:600;line-height:1.4;padding:12px 4px 4px;color:var(--ink)}
.cat[hidden]{display:none}
@media(max-width:1100px){.cats{grid-template-columns:repeat(4,1fr)}}
@media(max-width:700px){.cats{grid-template-columns:repeat(3,1fr);gap:10px}.cat{padding:6px;border-radius:12px}.cat h3{font-size:12.5px;padding:8px 2px 2px}
  .tabs{flex-wrap:nowrap;overflow-x:auto;margin:0 -20px 16px;padding:0 20px 4px;scrollbar-width:none}.tab{white-space:nowrap}}
@media(max-width:420px){.cats{grid-template-columns:repeat(2,1fr)}}

/* ===== Product cards ===== */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:transparent}
.card .ph{position:relative;aspect-ratio:1/1;background:linear-gradient(180deg,#f6f8fa,#eef2f6);display:grid;place-items:center;overflow:hidden;margin:8px 8px 0;border-radius:12px}
.card .ph img{width:100%;height:100%;object-fit:contain;transition:transform .5s}
.card:hover .ph img{transform:scale(1.05)}
.ph.fail::after{content:"Ảnh đang cập nhật";font-size:12px;color:var(--ink3)}
.badge{position:absolute;top:10px;left:10px;font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(15,42,71,.9);color:#fff;letter-spacing:.3px;backdrop-filter:blur(4px)}
.badge.new{background:rgba(35,132,90,.92)}
.card .bd{padding:14px 16px 16px;display:flex;flex-direction:column;gap:4px;flex:1}
.card .grp{font-size:11.5px;color:var(--steel);font-weight:600;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card h3{font-size:15px;font-weight:600;line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card h3 a:hover{color:var(--steel)}
.card .code{font-size:12.5px;color:var(--ink3)}
.card .code b{font-weight:600;color:var(--ink2)}
.card .act{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.card .act .btn{height:38px;font-size:13px;padding:0 8px}
@media(max-width:1100px){.grid4{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.grid4{grid-template-columns:repeat(2,1fr);gap:12px}.card{border-radius:14px}.card .ph{margin:6px 6px 0;border-radius:10px}}
@media(max-width:440px){.card .act{grid-template-columns:1fr}.card .act .btn-o{display:none}.card h3{font-size:13.5px}.card .bd{padding:10px 12px 12px}}

/* rail */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 66px)/4);gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 12px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail>.card{scroll-snap-align:start}
.rail-nav{display:flex;gap:8px}
.rail-nav button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);background:#fff;display:grid;place-items:center;font-size:20px;color:var(--navy);transition:all .2s}
.rail-nav button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
@media(max-width:1100px){.rail{grid-auto-columns:calc((100% - 44px)/3)}}
@media(max-width:800px){.rail{grid-auto-columns:46%;gap:12px}}
@media(max-width:520px){.rail{grid-auto-columns:72%}.rail-nav{display:none}}

/* ===== Process ===== */
.process-s{background:linear-gradient(180deg,#fff,var(--bg2))}
.process{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.process li{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px 22px;counter-increment:st;box-shadow:var(--sh1)}
.process li::before{content:counter(st,decimal-leading-zero);display:block;font-size:34px;font-weight:700;line-height:1;margin-bottom:14px;background:linear-gradient(135deg,var(--steel),var(--navy));-webkit-background-clip:text;background-clip:text;color:transparent}
.process li::after{content:"";position:absolute;top:44px;right:-20px;width:20px;height:2px;background:var(--line2)}
.process li:last-child::after{display:none}
.process b{display:block;font-size:16.5px;margin-bottom:6px}
.process span{font-size:14px;color:var(--ink2)}
@media(max-width:900px){.process{grid-template-columns:1fr 1fr;gap:12px}.process li::after{display:none}}
@media(max-width:480px){.process{grid-template-columns:1fr}}

/* ===== About ===== */
.about{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about h2{font-size:32px;line-height:1.25;margin-bottom:16px;letter-spacing:-.3px}
.about p{color:var(--ink2);margin-bottom:14px}
.about-media{position:relative;min-height:420px}
.about-media img{position:absolute;object-fit:cover;border-radius:22px;box-shadow:var(--sh3)}
.about-media .a1{left:0;top:0;width:78%;height:78%}
.about-media .a2{right:0;bottom:0;width:56%;height:56%;border:6px solid var(--bg2)}
.checks{list-style:none;margin:18px 0 26px;display:grid;gap:10px}
.checks li{position:relative;padding-left:32px;color:var(--ink)}
.checks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232f6ea5' stroke-width='3'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center/12px no-repeat}
.about .ctas{display:flex;gap:12px;flex-wrap:wrap}
.svc{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.svc div{border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff}
.svc b{display:block;color:var(--navy);margin-bottom:4px;font-size:15.5px}
.svc span{font-size:14px;color:var(--ink2)}
.apps-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.apps-list span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink2)}
@media(max-width:900px){.about{grid-template-columns:1fr;gap:32px}.about-media{min-height:300px}.about h2{font-size:25px}}
@media(max-width:480px){.svc{grid-template-columns:1fr}.about-media{min-height:240px}}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.post:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.post .im{aspect-ratio:16/10;background:var(--bg2);overflow:hidden}
.post .im img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.post:hover .im img{transform:scale(1.04)}
.post .bd{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.post h2,.post h3{font-size:17px;line-height:1.4;font-weight:600}
.post time{font-size:12.5px;color:var(--ink3)}
.post .more{margin-top:auto;padding-top:8px;font-size:13.5px;color:var(--steel);font-weight:600}
.news-grid.news-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.news-grid,.news-grid.news-4{grid-template-columns:1fr 1fr;gap:12px}}
@media(max-width:520px){.news-grid,.news-grid.news-4{grid-template-columns:1fr}}
.article{max-width:820px;margin:0 auto;padding:8px 0 48px}
.article h1{font-size:34px;line-height:1.25;margin:6px 0 10px;letter-spacing:-.3px}
.article .meta{color:var(--ink3);font-size:13.5px;margin-bottom:22px}
.article .cover{border-radius:18px;margin-bottom:26px;width:100%;height:auto}
@media(max-width:900px){.article h1{font-size:25px}}

/* ===== H. Contact ===== */
.contact-s{background:linear-gradient(160deg,var(--navy) 0%,var(--navy2) 100%);color:#fff;position:relative;overflow:hidden}
.contact-s::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 10% 0%,rgba(91,147,196,.25),transparent 60%)}
.contact-s .wrap{position:relative}
.contact-s .kicker{color:#8fb8de}
.contact-s .sh2 h2{color:#fff}
.contact-s .sh2 p{color:#b9cadb}
.contact{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
.qlinks{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.qlinks a{display:flex;flex-direction:column;gap:2px;padding:16px;border:1px solid rgba(255,255,255,.16);border-radius:14px;font-size:14px;font-weight:600;background:rgba(255,255,255,.05);transition:background .2s}
.qlinks a:hover{background:rgba(255,255,255,.12)}
.qlinks small{font-weight:400;color:#a9bfd4;font-size:12.5px;overflow:hidden;text-overflow:ellipsis}
.addr-cards{display:grid;gap:12px}
.addr{border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:18px 20px;background:rgba(255,255,255,.04)}
.addr h3{font-size:16px;color:#fff;margin-bottom:6px}
.addr p{font-size:14px;color:#c4d4e4;display:flex;gap:10px;margin-top:6px}
.addr p svg{margin-top:3px;color:#8fb8de}
.form{border-radius:20px;padding:28px;background:#fff;color:var(--ink);box-shadow:var(--sh3)}
.form h3{font-size:21px;margin-bottom:4px}
.form>p{color:var(--ink2);font-size:14px;margin-bottom:18px}
.fld{margin-bottom:14px}
.fld label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.fld label span{font-weight:400;color:var(--ink3)}
.fld input,.fld textarea{width:100%;border:1.5px solid var(--line2);border-radius:12px;padding:12px 14px;font-size:16px;outline:none;background:#fff;transition:border-color .2s,box-shadow .2s}
.fld input:focus,.fld textarea:focus{border-color:var(--steel);box-shadow:0 0 0 4px rgba(47,110,165,.12)}
.fld textarea{min-height:110px;resize:vertical}
.fld .err{color:var(--warn);font-size:12.5px;margin-top:4px;display:none}
.fld.bad input,.fld.bad textarea{border-color:#d92d20}.fld.bad .err{display:block}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hp{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.ok-msg{display:none;background:#ecfdf3;border:1px solid #abefc6;color:#05603a;border-radius:10px;padding:12px;font-size:14px;margin-top:12px}
.fail-msg{display:none;background:#fef3f2;border:1px solid #fecdca;color:var(--warn);border-radius:10px;padding:12px;font-size:14px;margin-top:12px}
@media(max-width:900px){.contact{grid-template-columns:1fr;gap:28px}}
@media(max-width:520px){.row2{grid-template-columns:1fr;gap:0}.form{padding:20px}.qlinks{grid-template-columns:1fr}}

/* ===== Footer ===== */
footer.ft{background:#07182b;color:#9fb2c6;font-size:14px}
.ft-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding:56px 20px 36px}
.ft h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.ft ul{list-style:none}
.ft li{margin-bottom:9px}
.ft a:hover{color:#fff}
.ft p{margin-bottom:10px;line-height:1.6}
.ft b{color:#e3ecf5}
.ft .bank{font-size:13px;border-top:1px solid #1d3550;padding-top:12px;margin-top:12px;color:#8197ad}
.ft-bot{border-top:1px solid #1d3550}
.ft-bot .wrap{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px;font-size:12.5px;color:#7186a0}
@media(max-width:900px){.ft-cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ft-cols{grid-template-columns:1fr;gap:26px}}

/* ===== Floating contact ===== */
.fab{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:40}
.fab a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 10px 24px -8px rgba(0,0,0,.45);font-size:11.5px;font-weight:700;transition:transform .2s}
.fab a:hover{transform:scale(1.06)}
.fab .z{background:var(--zalo)}.fab .c{background:var(--ok)}
.fab .lbl{display:none}
@media(max-width:640px){
  .fab{left:0;right:0;bottom:0;flex-direction:row;gap:8px;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-top:1px solid var(--line);padding:8px 12px calc(8px + env(safe-area-inset-bottom))}
  .fab a{flex:1;width:auto;height:46px;border-radius:12px;box-shadow:none;font-size:14.5px;gap:6px;display:flex;justify-content:center;align-items:center}
  .fab .lbl{display:inline}
  body{padding-bottom:64px}
}

/* ===== Category page ===== */
.crumb{font-size:13px;color:var(--ink3);padding:20px 0 6px}
.crumb a{color:var(--steel)}.crumb a:hover{text-decoration:underline}
.crumb span{color:var(--ink2)}
.ch{padding:8px 0 26px;margin-bottom:26px;border-bottom:1px solid var(--line);display:flex;gap:24px;align-items:flex-end;justify-content:space-between;flex-wrap:wrap}
.ch h1{font-size:34px;line-height:1.2;letter-spacing:-.3px}
.ch p{color:var(--ink2);max-width:760px;margin-top:8px}
.ch p a{color:var(--steel)}
.ch .meta{display:inline-block;font-size:13px;color:var(--steel);background:var(--tint);border-radius:999px;padding:4px 12px;margin-top:12px;font-weight:600}
.layout{display:grid;grid-template-columns:270px 1fr;gap:36px;padding-bottom:64px;align-items:start}
aside.side{position:sticky;top:calc(var(--hdr) + 66px)}
.box{border:1px solid var(--line);border-radius:16px;padding:18px;margin-bottom:14px;background:#fff}
.box h3{font-size:11.5px;text-transform:uppercase;letter-spacing:.9px;color:var(--ink3);margin-bottom:12px}
.box ul{list-style:none}
.box li a{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;border-radius:10px;font-size:13.5px;line-height:1.35;color:var(--ink2)}
.box li a:hover{background:var(--bg2);color:var(--ink)}
.box li a.on{background:var(--navy);color:#fff;font-weight:600}
.box input[type=search]{width:100%;height:42px;border:1.5px solid var(--line2);border-radius:10px;padding:0 12px;font-size:15px;outline:none}
.box input[type=search]:focus{border-color:var(--steel)}
.box .note{font-size:12px;color:var(--ink3);margin-top:8px}
.box form{margin:0}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:12px;flex-wrap:wrap}
.toolbar .cnt{font-size:14px;color:var(--ink2)}
.toolbar form{margin:0}
.toolbar select{height:40px;border:1px solid var(--line2);border-radius:999px;padding:0 14px;font-size:14px;background:#fff}
.layout .grid4{grid-template-columns:repeat(3,1fr)}
.pager{display:flex;gap:6px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{min-width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line2);border-radius:999px;font-size:14px;padding:0 12px;background:#fff}
.pager span{border:0;background:none;color:var(--ink3)}
.pager a.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager a:hover:not(.on){border-color:var(--navy)}
.fbtn{display:none}
.empty{grid-column:1/-1;text-align:center;padding:48px 20px;border:1.5px dashed var(--line2);border-radius:18px;color:var(--ink2)}
.empty a{text-decoration:underline}
@media(max-width:1000px){
  .layout{grid-template-columns:1fr}
  aside.side{display:none;position:static}
  aside.side.open{display:block}
  .fbtn{display:inline-flex}
  .layout .grid4{grid-template-columns:repeat(2,1fr);gap:12px}
  .ch h1{font-size:25px}
}

/* ===== Product page ===== */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;padding:10px 0 56px}
.gal-main{border:1px solid var(--line);border-radius:22px;aspect-ratio:1/1;overflow:hidden;background:linear-gradient(180deg,#f6f8fa,#eef2f6);cursor:zoom-in;position:relative}
.gal-main img{width:100%;height:100%;object-fit:contain}
.gal-main .zoom-hint{position:absolute;right:12px;bottom:12px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:999px;font-size:12px;padding:5px 12px;color:var(--ink2)}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.thumbs button{border:2px solid transparent;border-radius:12px;aspect-ratio:1/1;overflow:hidden;background:var(--bg2);padding:0;transition:border-color .2s}
.thumbs button.on,.thumbs button:hover{border-color:var(--navy)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.pd-video{margin-top:14px;width:100%;border-radius:16px;background:#000}
.pd-info{position:sticky;top:calc(var(--hdr) + 70px);align-self:start}
.pd-info .grp{font-size:12.5px;color:var(--steel);font-weight:700;text-transform:uppercase;letter-spacing:.6px}
.pd-info h1{font-size:34px;line-height:1.2;margin:8px 0 12px;letter-spacing:-.3px}
.pd-info .code{display:inline-block;background:var(--bg2);border:1px solid var(--line);border-radius:999px;padding:4px 14px;font-size:13.5px;margin-bottom:18px}
.pd-info .desc{color:var(--ink2);margin-bottom:24px;font-size:16px}
.pd-cta{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--bg2)}
.pd-cta .btn{height:50px}
.pd-cta .wide{grid-column:1/-1}
.pd-note{font-size:13px;color:var(--ink3);margin-top:14px}
.rich{color:var(--ink);font-size:16px;line-height:1.75;overflow-wrap:anywhere;max-width:880px}
.rich img{height:auto;border-radius:14px;margin:14px auto}
.rich p{margin:0 0 12px}
.rich table{max-width:100%;border-collapse:collapse;display:block;overflow-x:auto}
.rich td,.rich th{border:1px solid var(--line);padding:6px 10px}
@media(max-width:900px){.pd{grid-template-columns:1fr;gap:24px}.pd-info{position:static}.pd-info h1{font-size:25px}}
.lb{position:fixed;inset:0;background:rgba(7,24,43,.92);z-index:100;display:none;place-items:center;padding:16px}
.lb.on{display:grid}
.lb img{max-width:100%;max-height:90vh;background:#fff;border-radius:12px}
.lb button{position:absolute;top:16px;right:16px;width:46px;height:46px;border-radius:50%;border:0;background:#fff;font-size:22px}

/* ===== Quote modal ===== */
.md{position:fixed;inset:0;background:rgba(7,24,43,.6);backdrop-filter:blur(4px);z-index:90;display:none;align-items:center;justify-content:center;padding:16px}
.md.on{display:flex}
.md .form{width:100%;max-width:540px;max-height:92vh;overflow:auto;position:relative}
.md .x{position:absolute;top:14px;right:14px;width:38px;height:38px;border-radius:50%;border:0;background:var(--bg3);font-size:18px}
.md .prod{display:flex;gap:12px;align-items:center;background:var(--bg2);border-radius:12px;padding:10px;margin-bottom:16px;font-size:14px}
.md .prod img{width:48px;height:48px;object-fit:cover;background:#fff;border-radius:8px}
@media(max-width:520px){.md{align-items:flex-end;padding:0}.md .form{border-radius:20px 20px 0 0;max-height:94vh}}

/* ===== Simple pages ===== */
.page-head{padding:8px 0 26px;border-bottom:1px solid var(--line);margin-bottom:32px}
.page-head h1{font-size:34px;line-height:1.2;letter-spacing:-.3px}
.page-head p{color:var(--ink2);margin-top:8px;max-width:760px}
@media(max-width:900px){.page-head h1{font-size:25px}}
@media(max-width:700px){.hero-visual{display:none}.hero-in{padding-bottom:28px}}

.brand-img{height:58px;width:auto;max-width:none}
.ft-logo{height:80px;width:auto;background:#fff;border-radius:14px;padding:6px 10px;margin-bottom:14px}
@media(max-width:1000px){.brand-img{height:50px}}