/* =========================================
   XENANG — Frontend CSS (v2, matched to xenangnguoichothue.vn)
   Palette: primary #347ab6, accent #b70100, highlight #eba11e
   ========================================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Roboto",system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;font-size:14px;line-height:1.6;color:#333;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:#347ab6;text-decoration:none;transition:color .15s}
a:hover{color:#b70100}
h1,h2,h3,h4{font-family:inherit;margin:0 0 .5em;line-height:1.3;color:#224}
h1{font-size:26px;font-weight:700}h2{font-size:22px;font-weight:700}h3{font-size:16px;font-weight:700}
p{margin:0 0 1em}
ul{padding-left:20px;margin:0 0 1em}
:root{
  --nav:#347ab6;        /* primary blue */
  --nav-d:#2a5f8e;      /* darker blue hover */
  --nav-dd:#1e456a;     /* deep blue footer */
  --accent:#b70100;     /* brand red */
  --accent-d:#8e0100;
  --hi:#eba11e;         /* highlight orange-yellow */
  --bg:#f5f7fa;
  --border:#e4e8ee;
  --muted:#6b7280;
  --text:#333;
}
.container{max-width:1200px;margin:0 auto;padding:0 15px}
button,.btn{display:inline-block;padding:9px 18px;border:0;border-radius:3px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer;font-size:13px;text-align:center;text-transform:uppercase;letter-spacing:.3px;transition:background .2s,transform .15s,box-shadow .2s;line-height:1.4}
.btn:hover{background:var(--accent-d);color:#fff;box-shadow:0 4px 12px rgba(183,1,0,.25)}
.btn-outline{background:transparent;border:2px solid var(--accent);color:var(--accent);padding:7px 16px}
.btn-outline:hover{background:var(--accent);color:#fff}
.btn-nav{background:var(--nav)}
.btn-nav:hover{background:var(--nav-d);box-shadow:0 4px 12px rgba(52,122,182,.25)}
.btn-hi{background:var(--hi);color:#222}
.btn-hi:hover{background:#d88f0e;color:#fff}
/* Variant: trắng trên dark hero — hover sang màu accent */
.btn-light{background:#fff;color:var(--accent);border:2px solid #fff;padding:7px 16px}
.btn-light:hover{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 4px 14px rgba(183,1,0,.35)}
/* Zalo CTA — màu xanh Zalo */
.btn-zalo{background:#0068ff;color:#fff}
.btn-zalo:hover{background:#0050c8;color:#fff;box-shadow:0 4px 14px rgba(0,104,255,.4)}

/* ===== Topbar ===== */
.topbar{background:var(--nav-dd);color:#e5eaf1;font-size:12.5px;padding:6px 0}
.topbar a{color:#fff}
.topbar a:hover{color:var(--hi)}
.topbar-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ===== Header ===== */
.site-header{background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 4px 24px rgba(13,59,102,.08),0 1px 3px rgba(0,0,0,.04)}
.icon{width:1em;height:1em;display:inline-block;vertical-align:-0.15em;flex-shrink:0;stroke-width:2;stroke:currentColor;fill:none;stroke-linecap:round;stroke-linejoin:round}
.icon-md{width:16px;height:16px;vertical-align:-0.2em}
.icon-lg{width:22px;height:22px}
.topbar .icon{color:var(--hi);margin-right:2px}
.topbar-row>div{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.hotline-btn .icon{color:#fff}
.service-card .icon{width:30px;height:30px;color:#fff}
.service-card .icon svg{width:30px;height:30px}
.service-card>.icon{display:inline-flex;align-items:center;justify-content:center}
.testi-card .avatar svg{width:32px;height:32px;color:var(--muted)}
.contact-cards .icon svg{width:28px;height:28px;color:#fff}
.info-line .ic svg{color:var(--accent)}
.floating-actions{right:18px;bottom:18px;gap:12px}
.floating-actions a{width:56px;height:56px;flex-direction:column;font-size:0;position:relative}
.floating-actions a svg{width:24px;height:24px}
.floating-actions .fa-label{position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%);background:#222;color:#fff;font-size:12px;padding:5px 10px;border-radius:4px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.floating-actions .fa-label::after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:5px solid transparent;border-left-color:#222}
.floating-actions a:hover .fa-label{opacity:1;transform:translateY(-50%) translateX(-4px)}

/* Process steps */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.process-step{background:#fff;border-radius:8px;padding:24px 18px 18px;text-align:center;position:relative;border:1px solid var(--border);transition:transform .2s,box-shadow .2s}
.process-step:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(13,59,102,.12);border-color:var(--accent)}
.process-step .step-num{position:absolute;top:-18px;left:50%;transform:translateX(-50%);width:42px;height:42px;background:linear-gradient(135deg,var(--accent),#d40100);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;box-shadow:0 4px 12px rgba(183,1,0,.3)}
.process-step h3{margin-top:18px;color:var(--nav);font-size:15px}
.process-step p{font-size:13.5px;color:var(--muted);margin:0}
@media(max-width:768px){.process-grid{grid-template-columns:repeat(2,1fr)}}
.header-row{display:flex;align-items:center;gap:18px;padding:10px 0;min-height:76px}
.logo{display:inline-flex;align-items:center;flex-shrink:0;text-decoration:none}
.logo img{height:54px;width:auto;transition:transform .5s cubic-bezier(.34,1.56,.64,1),filter .3s}
.logo:hover img{transform:rotate(-8deg) scale(1.08);filter:drop-shadow(0 4px 12px rgba(13,59,102,.25))}
.logo-fallback{font-size:36px;display:inline-block;transition:transform .5s cubic-bezier(.34,1.56,.64,1)}
.logo:hover .logo-fallback{transform:rotate(360deg)}
.logo-text small{display:block;margin-top:2px}
.main-nav{flex:1;display:flex;justify-content:center}
.main-nav ul{display:flex;gap:2px;list-style:none;padding:0;margin:0}
.main-nav>ul>li>a{display:block;padding:12px 14px;font-weight:700;color:#224;text-transform:uppercase;font-size:13px;border-radius:3px;white-space:nowrap;position:relative}
.main-nav>ul>li>a::after{content:"";position:absolute;left:50%;right:50%;bottom:6px;height:2px;background:var(--accent);transition:left .2s,right .2s;border-radius:1px}
.main-nav>ul>li>a:hover::after,.main-nav .active>a::after{left:35%;right:35%}
.main-nav>ul>li>a:hover,.main-nav .active>a{color:var(--accent);background:transparent}
.main-nav li{position:relative}
/* Mega menu — căn giữa container, không lệch */
.main-nav .has-mega{position:static}
.main-nav .has-mega .mega-menu{display:none;position:absolute;top:100%;left:0;right:0;margin:0 auto;background:#fff;box-shadow:0 12px 32px rgba(0,0,0,.15);max-width:1200px;padding:18px 24px;border-top:1px solid var(--accent);border-radius:0 0 6px 6px;z-index:50;grid-template-columns:repeat(4,1fr);gap:8px 24px;align-items:start}
.main-nav .has-mega:hover .mega-menu,.main-nav .has-mega:focus-within .mega-menu,.main-nav .has-mega.open .mega-menu{display:grid}
.main-nav .has-mega>a{position:relative}
/* Bridge invisible — vùng hover nối link với mega-menu */
.main-nav .has-mega .mega-menu::before{content:"";position:absolute;top:-18px;left:0;right:0;height:18px;background:transparent}
.mega-col{min-width:0;display:flex;flex-direction:column}
.mega-col h4{color:var(--nav);font-size:12px;text-transform:uppercase;letter-spacing:.5px;margin:0 0 10px;padding-bottom:8px;border-bottom:2px solid var(--accent);font-weight:700;display:flex;align-items:center;gap:6px}
.mega-col h4::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%;display:inline-block}
.mega-col ul{list-style:none!important;padding:0!important;margin:0!important;display:block!important;position:static!important;background:transparent!important;box-shadow:none!important;border:0!important;min-width:0!important}
.mega-col li{margin:0;position:static}
.mega-col li a{display:block!important;padding:6px 8px!important;color:#333!important;font-size:13px!important;font-weight:500!important;text-transform:none!important;border:0!important;transition:all .15s;white-space:normal!important;line-height:1.4!important;border-radius:4px}
.mega-col li a:hover{color:var(--accent)!important;background:var(--bg)!important;padding-left:14px!important}
@media(max-width:1100px){.main-nav .has-mega .mega-menu{min-width:680px;grid-template-columns:repeat(3,1fr)}}
@media(max-width:1024px){
  /* Tắt hover/focus-within mở mega-menu trên mobile/tablet — chỉ mở bằng class .open (JS toggle) */
  .main-nav .has-mega:hover .mega-menu,
  .main-nav .has-mega:focus-within .mega-menu{display:none!important}
  /* Mobile mega-menu: xổ DỌC accordion full-width, KHÔNG grid horizontal */
  .main-nav .has-mega .mega-menu{
    display:none!important;
    position:static!important;
    top:auto!important;left:auto!important;right:auto!important;
    transform:none!important;
    width:100%!important;min-width:0!important;max-width:100%!important;
    grid-template-columns:1fr!important;
    box-shadow:none!important;border:0!important;border-top:0!important;border-radius:0!important;
    padding:4px 0 8px 12px!important;margin:0!important;
    background:var(--bg)!important;
    z-index:auto!important;
    gap:0!important;
  }
  .main-nav .has-mega.open .mega-menu{display:block!important}
  .main-nav .has-mega .mega-menu::before{display:none!important}
  .mega-col{display:block!important;width:100%!important;margin:6px 0 4px}
  .mega-col h4{font-size:12.5px;margin:10px 0 4px;padding:0 0 4px;border-bottom:1px solid var(--border);color:var(--nav);text-transform:uppercase}
  .mega-col h4::before{display:none}
  .mega-col ul{display:block!important;padding-left:6px!important}
  .mega-col li{display:block!important;width:100%}
  .mega-col li a{display:block!important;padding:8px 10px 8px 14px!important;font-size:13px!important;border-bottom:1px dashed #eee!important;border-radius:0!important}
  .mega-col li a:hover{padding-left:18px!important}
}

.main-nav ul ul{display:none;position:absolute;top:100%;left:0;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.15);min-width:260px;padding:6px 0;border-top:3px solid var(--accent);border-radius:0 0 4px 4px;z-index:10}
.main-nav ul ul li a{padding:9px 18px;text-transform:none;font-weight:500;color:#333;display:block;font-size:13.5px;border-bottom:1px dashed #eee}
.main-nav ul ul li:last-child a{border-bottom:0}
.main-nav ul ul li a:hover{background:var(--bg);color:var(--accent);padding-left:22px}
.main-nav li:hover>ul,.main-nav li:focus-within>ul{display:block}
.hotline-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:linear-gradient(135deg,var(--accent),#d40100);color:#fff;border-radius:30px;font-weight:700;font-size:14px;white-space:nowrap;box-shadow:0 4px 12px rgba(183,1,0,.3);animation:pulseRing 2s infinite}
.hotline-btn:hover{background:var(--accent-d);color:#fff;transform:translateY(-1px)}
@keyframes pulseRing{0%{box-shadow:0 0 0 0 rgba(183,1,0,.5)}70%{box-shadow:0 0 0 12px rgba(183,1,0,0)}100%{box-shadow:0 0 0 0 rgba(183,1,0,0)}}
.hamburger{display:none;background:none;border:0;font-size:26px;color:var(--nav);cursor:pointer;padding:4px 8px}

/* ===== Header search ===== */
.header-search{display:flex;flex:0 0 230px;max-width:230px;border:1px solid var(--border);border-radius:22px;overflow:hidden;background:#fff;transition:border-color .2s,box-shadow .2s}
.header-search:focus-within{border-color:var(--nav);box-shadow:0 0 0 3px rgba(52,122,182,.12)}
.header-search input{flex:1;border:0;padding:8px 14px;background:transparent;font:inherit;outline:none;font-size:13px;min-width:0}
.header-search button{background:var(--nav);border:0;color:#fff;padding:0 16px;cursor:pointer;font-size:13px;border-radius:0 22px 22px 0}
.header-search button:hover{background:var(--nav-d)}
@media(max-width:1100px){.header-search{display:none}}

/* ===== Hero slider ===== */
.slider{position:relative;width:100%;aspect-ratio:1200/470;max-height:520px;overflow:hidden;background:#1e456a}
.slider .slide{position:absolute;inset:0;opacity:0;animation:slideFade 18s infinite cubic-bezier(.65,0,.35,1)}
.slider .slide img{width:100%;height:100%;object-fit:cover;display:block;animation:slideZoom 18s infinite cubic-bezier(.4,0,.2,1)}
.slider .slide:nth-child(1) img{animation-delay:0s}
.slider .slide:nth-child(2) img{animation-delay:6s}
.slider .slide:nth-child(3) img{animation-delay:12s}
.slider .slide-caption{transform:translateY(-50%);transition:transform .6s}
.slider .slide:nth-child(1){animation-delay:0s}
.slider .slide:nth-child(2){animation-delay:6s}
.slider .slide:nth-child(3){animation-delay:12s}
@keyframes slideZoom{0%,33.33%{transform:scale(1.08)}33.34%,100%{transform:scale(1.02)}}
.slider .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(30,69,106,.75) 0%,rgba(30,69,106,.25) 55%,transparent 100%)}
.slider .slide-caption{position:absolute;left:8%;top:50%;transform:translateY(-50%);color:#fff;max-width:580px;z-index:2}
.slider .slide-caption h1,.slider .slide-caption h2{color:#fff;font-size:38px;margin-bottom:12px;text-shadow:0 2px 14px rgba(0,0,0,.5);font-weight:700;line-height:1.15}
.slider .slide-caption p{font-size:17px;margin-bottom:20px;text-shadow:0 1px 6px rgba(0,0,0,.5);line-height:1.5}
.slider .slide-caption .btn{margin-right:10px;padding:11px 24px;font-size:13px}
@keyframes slideFade{0%{opacity:0;z-index:1}5%,33.33%{opacity:1;z-index:1}38%,100%{opacity:0;z-index:0}}
@media(prefers-reduced-motion:reduce){.slider .slide{animation:none}.slider .slide:nth-child(1){opacity:1;z-index:1}.hotline-btn{animation:none}}
.slider-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.slider-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.4);display:block;border:2px solid rgba(255,255,255,.7);cursor:pointer;transition:all .2s}
.slider-dots span.active,.slider-dots span:hover{background:var(--hi);border-color:var(--hi);transform:scale(1.2)}
@media(max-width:768px){
  .slider{aspect-ratio:16/10}
  .slider .slide-caption h1,.slider .slide-caption h2{font-size:20px}
  .slider .slide-caption p{font-size:13px;margin-bottom:12px}
  .slider .slide-caption .btn{padding:8px 14px;font-size:11px}
}

/* ===== Sections ===== */
.section{padding:50px 0}
.section.alt{background:var(--bg)}
.section-head{text-align:center;margin-bottom:32px}
.section-head h2{display:inline-block;position:relative;padding:0 30px 14px;font-size:24px;letter-spacing:.5px;text-transform:uppercase;color:#224}
.section-head h2::before,.section-head h2::after{content:"";position:absolute;top:50%;width:40px;height:2px;background:var(--accent);transform:translateY(-70%)}
.section-head h2::before{right:100%;margin-right:-30px}
.section-head h2::after{left:100%;margin-left:-30px}
.section-head h2 span.dot{display:inline-block;width:10px;height:10px;background:var(--hi);border-radius:50%;margin:0 6px;vertical-align:middle}
.section-head p{color:var(--muted);margin-top:6px;font-size:14px}
/* Legacy single-underline style reserved for pages that explicitly opt in via .underline */
.section-head.underline h2::before{display:none}
.section-head.underline h2::after{left:50%;top:auto;bottom:0;width:60px;margin-left:-30px;transform:none;border-radius:2px}

/* ===== Category cards ===== */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.cat-card{display:block;background:#fff;border:1px solid var(--border);border-radius:6px;padding:22px 18px;text-align:center;transition:transform .2s,box-shadow .2s,border-color .2s}
.cat-card:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(52,122,182,.15);border-color:var(--nav)}
.cat-card img{height:110px;width:auto;margin:0 auto 12px;object-fit:contain}
.cat-card h3{font-size:15px;color:var(--nav);margin:0}

/* ===== Product grid — 3 cột ===== */
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.products-grid{grid-template-columns:repeat(2,1fr);gap:14px}}
@media(max-width:480px){.products-grid{grid-template-columns:repeat(2,1fr);gap:10px}}
.product-card{background:#fff;border:1px solid var(--border);border-radius:4px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative}
.product-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(0,0,0,.12);border-color:#d6dde7}
.product-card .thumb{aspect-ratio:1/1;overflow:hidden;background:#fafbfc;position:relative;display:block}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.product-card:hover .thumb img{transform:scale(1.08)}
.product-card .body{padding:14px;flex:1;display:flex;flex-direction:column;border-top:1px solid #f0f2f5}
.product-card h3{font-size:14px;margin:0 0 8px;line-height:1.4;min-height:40px;color:#224;font-weight:500}
.product-card h3 a{color:inherit}
.product-card h3 a:hover{color:var(--accent)}
.product-card .price{color:var(--accent);font-weight:700;font-size:15px;margin:auto 0 10px}
.product-card .actions{display:flex;gap:8px}
.product-card .actions .btn{flex:1;padding:8px 6px;font-size:11.5px;border-radius:3px;letter-spacing:.2px}
.product-card .actions .btn:first-child{background:var(--accent)}
.product-card .actions .btn-nav{background:#fff;color:var(--nav);border:1.5px solid var(--nav)}
.product-card .actions .btn-nav:hover{background:var(--nav);color:#fff}

.view-all{text-align:center;margin-top:30px}
.view-all .btn{padding:10px 28px;font-size:12.5px}

/* ===== About section ===== */
.about-home{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.about-home img{width:100%;border-radius:8px;box-shadow:0 14px 36px rgba(30,69,106,.18)}
.about-home h3{color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:3px;margin-bottom:8px;font-weight:700}
.about-home h2{font-size:28px;margin-bottom:16px;text-align:left;color:#224;position:relative;padding-bottom:12px}
.about-home h2::after{content:"";position:absolute;left:0;bottom:0;width:60px;height:3px;background:var(--accent);border-radius:2px}
.about-home p{margin-bottom:14px;color:#555;line-height:1.75}
@media(max-width:768px){.about-home{grid-template-columns:1fr;gap:24px}}

/* ===== Services ===== */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service-card{background:#fff;border:1px solid var(--border);border-radius:6px;padding:28px 18px;text-align:center;transition:all .25s;position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.service-card:hover::before{transform:scaleX(1)}
.service-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(30,69,106,.14);border-color:#d6dde7}
.service-card .icon{width:72px;height:72px;margin:0 auto 14px;background:linear-gradient(135deg,var(--nav),var(--nav-dd));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;box-shadow:0 6px 16px rgba(52,122,182,.3);transition:transform .3s}
.service-card:hover .icon{transform:rotate(-5deg) scale(1.08)}
.service-card h3{font-size:15px;color:#224;margin:0 0 8px;text-transform:uppercase;letter-spacing:.3px}
.service-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.6}
@media(max-width:768px){.services-grid{grid-template-columns:repeat(2,1fr)}}

/* ===== Testimonials ===== */
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi-card{background:#fff;border:1px solid var(--border);border-radius:6px;padding:28px 22px 22px;text-align:center;position:relative;border-top:3px solid var(--accent);transition:transform .2s,box-shadow .2s}
.testi-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.testi-card::before{content:"\201C";position:absolute;top:-2px;left:20px;font-size:72px;color:var(--hi);line-height:1;font-family:Georgia,serif;font-weight:700;opacity:.8}
.testi-card .avatar{width:70px;height:70px;border-radius:50%;background:linear-gradient(135deg,#eef2f7,#dbe5f0);margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--nav);border:3px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.testi-card .name{font-weight:700;color:var(--nav);margin-bottom:6px;font-size:15px}
.testi-card p{font-size:13.5px;color:#555;margin:0;line-height:1.7;font-style:italic}
@media(max-width:768px){.testimonials-grid{grid-template-columns:1fr}}

/* ===== Partners — text card không cần ảnh ===== */
.partners-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.brand-card{aspect-ratio:5/2;border:2px solid var(--border);border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;transition:all .25s;position:relative;overflow:hidden}
.brand-card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--nav),var(--nav-dd));opacity:0;transition:opacity .25s;z-index:0}
.brand-card .brand-name{position:relative;z-index:1;font-weight:700;font-size:20px;letter-spacing:2px;color:var(--nav);text-transform:uppercase;transition:color .25s}
.brand-card:hover{transform:translateY(-4px);border-color:var(--nav);box-shadow:0 10px 24px rgba(13,59,102,.18)}
.brand-card:hover::before{opacity:1}
.brand-card:hover .brand-name{color:#fff}
@media(max-width:768px){.partners-row{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.partners-row{grid-template-columns:repeat(2,1fr)}}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:12px 0;background:var(--bg);font-size:13px;color:var(--muted);border-bottom:1px solid var(--border)}
.breadcrumb ol{display:flex;list-style:none;padding:0;margin:0;flex-wrap:wrap;gap:4px}
.breadcrumb li+li::before{content:"›";margin:0 6px;color:#999}

/* ===== Layout 2 columns ===== */
.layout-2col{display:grid;grid-template-columns:260px 1fr;gap:24px;padding:24px 0 40px}
.sidebar{background:#fff;border:1px solid var(--border);border-radius:6px;padding:18px;height:fit-content;margin-bottom:16px}
/* Chỉ wrapper ngoài cùng sticky, các aside con bên trong stack bình thường */
.layout-2col>div:first-child{position:sticky;top:88px;align-self:flex-start;height:fit-content;max-height:calc(100vh - 100px);overflow-y:auto;scrollbar-width:thin}
.layout-2col>div:first-child::-webkit-scrollbar{width:6px}
.layout-2col>div:first-child::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
@media(max-width:900px){.layout-2col>div:first-child{position:static;max-height:none;overflow:visible}}
.sidebar h3{font-size:15px;text-transform:uppercase;border-bottom:2px solid var(--accent);padding-bottom:10px;margin-bottom:12px;color:var(--nav)}
.sidebar ul{list-style:none;padding:0;margin:0}
.sidebar li a{display:block;padding:8px 0;color:#333;font-size:14px;border-bottom:1px dashed #eee;transition:all .15s}
.sidebar li a:hover,.sidebar li.active a{color:var(--accent);font-weight:600;padding-left:6px}

/* ===== Product detail ===== */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:24px 0}
.product-gallery .main-img{aspect-ratio:1/1;background:#fafbfc;border-radius:6px;overflow:hidden;border:1px solid var(--border)}
.product-gallery .main-img img{width:100%;height:100%;object-fit:contain}
.product-gallery .thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:10px}
.product-gallery .thumbs img{border:1px solid var(--border);border-radius:4px;aspect-ratio:1/1;object-fit:cover;cursor:pointer;transition:border-color .15s}
.product-gallery .thumbs img:hover{border-color:var(--accent)}
.product-info h1{font-size:24px;margin-bottom:10px;color:#224}
.product-info .price{font-size:26px;color:var(--accent);font-weight:700;margin-bottom:16px}
.product-info .specs{background:var(--bg);border-radius:6px;padding:16px;margin-bottom:18px;border-left:3px solid var(--nav)}
.product-info .specs table{width:100%;border-collapse:collapse;font-size:14px;table-layout:auto}
.product-info .specs td{padding:8px 10px;border-bottom:1px solid #e4e8ee;vertical-align:top;line-height:1.5;word-break:normal}
.product-info .specs td:first-child{font-weight:600;color:var(--nav);width:45%;white-space:normal}
.product-tabs .tab-panel table{width:100%;border-collapse:collapse;font-size:14px;margin:10px 0}
.product-tabs .tab-panel table td{padding:10px 14px;border-bottom:1px solid #e4e8ee;vertical-align:top;line-height:1.5}
.product-tabs .tab-panel table td:first-child{font-weight:600;color:var(--nav);width:38%;min-width:160px;background:#f5f7fa}
.product-tabs #tab-specs table{table-layout:auto}
.product-info .cta-row{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.product-info .cta-row .btn{padding:12px 24px;font-size:13.5px}
.product-content{padding:20px 0 36px}
.product-content h2{font-size:20px;border-left:4px solid var(--accent);padding-left:12px;color:#224}
.product-content img{margin:12px 0;border-radius:4px}
.product-content table{border-collapse:collapse;width:100%;margin:12px 0}
.product-content td,.product-content th{border:1px solid var(--border);padding:8px}

/* ===== Forms ===== */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-weight:600;font-size:13px;margin-bottom:5px;color:var(--nav)}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:4px;font:inherit;background:#fff;transition:border-color .15s,box-shadow .15s}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--nav);box-shadow:0 0 0 3px rgba(52,122,182,.12)}
.form-row textarea{min-height:110px;resize:vertical}
.form-inline{background:#fff;border:1px solid var(--border);border-radius:6px;padding:20px}
.honeypot{position:absolute;left:-9999px;visibility:hidden}
.skip-link{position:absolute;left:-9999px;top:0;background:#012b53;color:#fff;padding:8px 14px;z-index:9999;border-radius:0 0 4px 0;text-decoration:none;font-weight:600}
.skip-link:focus{left:0;outline:2px solid #ffd02f}
#main-content{outline:none}
.flash{padding:12px 16px;border-radius:4px;margin-bottom:16px;font-weight:500}
.flash-ok{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}
.flash-err{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}

/* ===== Features ===== */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.feature{text-align:center;padding:22px 16px}
.feature .icon{font-size:42px;color:var(--accent);margin-bottom:10px;line-height:1}
.feature h3{font-size:16px;color:var(--nav);margin-bottom:6px}
.feature p{color:var(--muted);font-size:14px;margin:0}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:6px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.news-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.1)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#eee;display:block}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .thumb img{transform:scale(1.05)}
.news-card .body{padding:16px}
.news-card h3{font-size:15px;margin-bottom:6px;line-height:1.4}
.news-card h3 a{color:#224}
.news-card h3 a:hover{color:var(--accent)}
.news-card .meta{font-size:12px;color:var(--muted);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.news-card p{font-size:13px;color:#555;margin:0;line-height:1.6}

/* ===== Article ===== */
.article{max-width:820px;margin:0 auto;padding:24px 0}
.article h1{font-size:28px}
.article .meta{color:var(--muted);font-size:13px;margin-bottom:18px}
.article img{max-width:100%;border-radius:6px;margin:14px 0}

/* ===== Footer ===== */
.site-footer{background:var(--nav-dd);color:#cbd5e1;padding:48px 0 20px;margin-top:40px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--hi),var(--nav))}
.site-footer h3{color:#fff;font-size:15px;text-transform:uppercase;margin-bottom:14px;padding-bottom:8px;display:inline-block;position:relative;letter-spacing:.5px}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:2px;background:var(--hi)}
.site-footer a{color:#cbd5e1}
.site-footer a:hover{color:var(--hi)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.4fr;gap:24px}
.footer-grid>div{min-width:0}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:8px;font-size:13px;line-height:1.5;word-wrap:break-word;overflow-wrap:break-word}
.footer-grid li a{display:inline-block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}
@media(max-width:1100px){.footer-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.site-footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:16px;text-align:center;font-size:12.5px;color:#94a3b8}
.social-links{display:flex;gap:8px;margin-top:12px}
.social-links a{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:rgba(255,255,255,.08);border-radius:50%;font-size:14px;font-weight:700;transition:all .2s}
.social-links a:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}

/* ===== Floating actions ===== */
.floating-actions{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:99}
.floating-actions a{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;font-size:22px;box-shadow:0 6px 16px rgba(0,0,0,.25);transition:transform .2s}
.floating-actions a:hover{transform:scale(1.1);color:#fff}
.floating-actions .zalo{background:#0068ff}
.floating-actions .phone{animation:pulse 1.5s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(183,1,0,.6)}70%{box-shadow:0 0 0 16px rgba(183,1,0,0)}100%{box-shadow:0 0 0 0 rgba(183,1,0,0)}}

/* ===== Pagination ===== */
.pagination{display:flex;gap:4px;justify-content:center;margin:28px 0;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-block;padding:8px 14px;border:1px solid var(--border);border-radius:3px;font-size:14px;color:#333;transition:all .15s}
.pagination a:hover,.pagination .current{background:var(--nav);color:#fff;border-color:var(--nav)}

/* ===== Breadcrumb enhancements ===== */
.breadcrumb ol li:first-child a::before{content:"\1F3E0";margin-right:5px;filter:grayscale(.2)}
.breadcrumb a{color:var(--nav)}
.breadcrumb li:last-child{color:#333;font-weight:600}

/* ===== Toolbar (category filter bar) ===== */
.cat-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-radius:6px;padding:10px 14px;margin-bottom:18px;flex-wrap:wrap}
.cat-toolbar .count{font-size:13px;color:var(--muted)}
.cat-toolbar .count b{color:var(--accent)}
.cat-toolbar .view-toggle{display:inline-flex;gap:4px}
.cat-toolbar .view-toggle button{background:#f0f3f7;color:#555;border:1px solid var(--border);padding:6px 10px;font-size:13px;text-transform:none;letter-spacing:0;border-radius:3px;cursor:pointer}
.cat-toolbar .view-toggle button.active{background:var(--nav);color:#fff;border-color:var(--nav)}
.cat-toolbar select{padding:7px 28px 7px 12px;border:1px solid var(--border);border-radius:3px;background:#fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M0 0l5 6 5-6z' fill='%23347ab6'/></svg>") no-repeat right 10px center;-webkit-appearance:none;appearance:none;font:inherit;font-size:13px;color:#333;cursor:pointer}
.cat-toolbar select:focus{outline:none;border-color:var(--nav)}

/* ===== Sidebar category list enhancements ===== */
.sidebar .cat-list li a{display:flex;justify-content:space-between;align-items:center}
.sidebar .cat-list li a::before{content:"\25B8";color:var(--accent);margin-right:8px;font-size:10px;transition:transform .15s}
.sidebar .cat-list li a:hover::before,.sidebar .cat-list li.active a::before{transform:translateX(3px)}
.sidebar .cat-list .count{background:#eef2f7;color:var(--nav);font-size:11px;padding:2px 8px;border-radius:10px;font-weight:600}

/* Sidebar groups (accordion) */
.sidebar-cats .cat-group{margin-bottom:8px;border-radius:6px;background:#fff;border:1px solid var(--border);overflow:hidden}
.sidebar-cats .cat-group[open]{border-color:var(--nav)}
.sidebar-cats .cat-group summary{list-style:none;padding:10px 12px;font-weight:700;color:var(--nav);font-size:13px;text-transform:uppercase;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:#f8fafc;transition:background .15s;position:relative;letter-spacing:.3px}
.sidebar-cats .cat-group summary::-webkit-details-marker{display:none}
.sidebar-cats .cat-group summary::after{content:"\25BE";font-size:14px;color:var(--accent);transition:transform .2s;margin-left:6px}
.sidebar-cats .cat-group[open] summary::after{transform:rotate(180deg)}
.sidebar-cats .cat-group summary:hover{background:#eef2f7}
.sidebar-cats .cat-group[open] summary{background:linear-gradient(135deg,var(--nav),var(--nav-d));color:#fff}
.sidebar-cats .cat-group[open] summary::after{color:#fff}
.sidebar-cats .cat-group .cat-count{background:var(--accent);color:#fff;font-size:10px;padding:1px 7px;border-radius:8px;font-weight:600;margin-left:auto;margin-right:6px;line-height:1.3}
.sidebar-cats .cat-group[open] .cat-count{background:var(--hi);color:#222}
.sidebar-cats .cat-group .cat-list{margin:0;padding:6px 0;list-style:none}
.sidebar-cats .cat-group .cat-list li{border:0}
.sidebar-cats .cat-group .cat-list li a{padding:8px 14px;font-size:13px;border:0}
.sidebar-cats .cat-group .cat-list li.active a{background:#fff5f5;color:var(--accent);font-weight:600}
.sidebar.highlight-contact{background:linear-gradient(135deg,var(--nav),var(--nav-dd));color:#fff;border:0;margin-top:16px;padding:22px 18px}
.sidebar.highlight-contact h3{color:#fff;border-bottom-color:var(--hi)}
.sidebar.highlight-contact p,.sidebar.highlight-contact a{color:#fff;font-size:13.5px;margin:6px 0}
.sidebar.highlight-contact a:hover{color:var(--hi)}
.sidebar.highlight-contact .big-phone{font-size:20px;font-weight:700;color:var(--hi);letter-spacing:.5px;margin-top:8px}

/* ===== List view for products ===== */
/* List view — override grid 1 column, card horizontal */
.products-list{grid-template-columns:1fr!important;gap:14px!important}
.products-list .product-card{flex-direction:row;align-items:stretch;max-width:100%}
.products-list .product-card .thumb{flex:0 0 240px;aspect-ratio:1/1;width:240px}
.products-list .product-card .body{border-top:0;border-left:1px solid #f0f2f5;padding:18px 22px;flex:1;min-width:0}
.products-list .product-card h3{font-size:17px;min-height:0;margin-bottom:10px}
.products-list .product-card h3 a{color:var(--nav)}
.products-list .product-card p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;font-size:13.5px!important;color:#555!important;line-height:1.6;margin-bottom:12px;min-height:0!important}
.products-list .product-card .price{font-size:18px;margin:0 0 12px;color:var(--accent)}
.products-list .product-card .actions{max-width:280px;gap:10px}
.products-list .product-card .actions .btn{padding:10px 16px;font-size:13px}
@media(max-width:700px){
  .products-list .product-card{flex-direction:column}
  .products-list .product-card .thumb{flex:0 0 auto;aspect-ratio:16/10;width:100%}
  .products-list .product-card .body{border-left:0;border-top:1px solid #f0f2f5}
}

/* ===== Product gallery thumb active ===== */
.product-gallery .thumbs img.active{border-color:var(--accent);box-shadow:0 0 0 2px rgba(183,1,0,.15)}

/* ===== Product info extras ===== */
.product-info .meta-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:14px;padding:8px 0;border-top:1px dashed #e4e8ee;border-bottom:1px dashed #e4e8ee;font-size:13px;color:#555}
.product-info .meta-row b{color:var(--nav);margin-right:4px}
.product-info .specs table tr:nth-child(odd) td{background:rgba(52,122,182,.04)}
.product-info .cta-row .btn.zalo{background:#0068ff;color:#fff}
.product-info .cta-row .btn.zalo:hover{background:#0052cc}
.product-info .form-inline{background:#f8fafc;border-color:#dde4ec}
.product-info .form-inline strong{color:var(--accent)}

/* ===== Product tabs ===== */
.product-tabs{margin:24px 0}
.product-tabs .tabs-nav{display:flex;border-bottom:2px solid var(--nav);margin-bottom:0}
.product-tabs .tabs-nav button{background:#eef2f7;border:0;color:#555;padding:11px 22px;font-weight:600;cursor:pointer;font-size:13.5px;text-transform:uppercase;letter-spacing:.3px;border-radius:4px 4px 0 0;margin-right:4px}
.product-tabs .tabs-nav button.active{background:var(--nav);color:#fff}
.product-tabs .tab-panel{background:#fff;border:1px solid var(--border);border-top:0;padding:22px;border-radius:0 0 6px 6px}

/* ===== News page enhancements ===== */
.page-head{background:linear-gradient(135deg,var(--nav),var(--nav-dd));color:#fff;padding:40px 0 42px;margin-bottom:28px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-60px;top:-40px;width:220px;height:220px;background:radial-gradient(circle,var(--hi) 0%,transparent 70%);opacity:.25}
.page-head h1{color:#fff;font-size:30px;margin:0 0 6px;position:relative}
.page-head p{color:#e2ecf7;margin:0;font-size:15px;position:relative;max-width:700px}
.bc-inline{display:flex;gap:0;font-size:12.5px;color:#c9d8e8;margin:0 0 10px;list-style:none;padding:0;flex-wrap:wrap}
.bc-inline li{list-style:none}
.bc-inline a{color:var(--hi)}
.bc-inline a:hover{color:#fff}
.bc-inline li+li::before{content:"/";margin:0 8px;color:#c9d8e8;opacity:.6}
.about-hero .bc-inline{justify-content:center}

.featured-news{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:26px;transition:box-shadow .2s}
.featured-news:hover{box-shadow:0 14px 30px rgba(0,0,0,.1)}
.featured-news .thumb{aspect-ratio:16/10;overflow:hidden;display:block}
.featured-news .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.featured-news:hover .thumb img{transform:scale(1.04)}
.featured-news .body{padding:26px;display:flex;flex-direction:column;justify-content:center}
.featured-news .badge{background:var(--accent);color:#fff;font-size:11px;padding:3px 10px;border-radius:2px;text-transform:uppercase;letter-spacing:.5px;align-self:flex-start;margin-bottom:12px;font-weight:600}
.featured-news h2{font-size:22px;margin-bottom:10px;line-height:1.3}
.featured-news h2 a{color:#224}
.featured-news h2 a:hover{color:var(--accent)}
.featured-news .meta{color:var(--muted);font-size:12.5px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.4px}
.featured-news p{color:#555;margin:0 0 14px;font-size:14px;line-height:1.7}
.featured-news .read-more{color:var(--accent);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.3px}
@media(max-width:768px){.featured-news{grid-template-columns:1fr}.featured-news .body{padding:18px}}

/* ===== Article page polish ===== */
.article-layout{display:grid;grid-template-columns:1fr 280px;gap:34px;padding:24px 0 40px;max-width:1200px;margin:0 auto}
.article-main{max-width:100%}
.article-main h1{font-size:30px;line-height:1.25;margin-bottom:14px}
.article-main>.meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--border)}
.article-main>.meta span{display:inline-flex;align-items:center;gap:5px}
.article-main .hero-img{width:100%;border-radius:8px;margin-bottom:22px}
.article-main .content{font-size:15.5px;line-height:1.85;color:#333}
.article-main .content p{margin-bottom:1.1em}
.article-main .content h2,.article-main .content h3{margin-top:1.5em;margin-bottom:.5em;color:#224}
.article-main .content h2{border-left:4px solid var(--accent);padding-left:12px}
.article-main .content img{border-radius:6px;margin:14px 0}
.article-main .content blockquote{border-left:4px solid var(--hi);padding:10px 18px;background:#fff8ea;margin:18px 0;font-style:italic;color:#5a4820}
.share-row{display:flex;gap:10px;margin:24px 0;padding:14px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);align-items:center;flex-wrap:wrap}
.share-row .label{font-size:13px;font-weight:700;color:var(--nav);margin-right:6px}
.share-row a{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:20px;font-size:12.5px;font-weight:600;color:#fff;transition:transform .15s}
.share-row a:hover{transform:translateY(-1px);color:#fff}
.share-row .fb{background:#1877f2}
.share-row .zl{background:#0068ff}
.share-row .cp{background:#6b7280}
.article-sidebar .block{background:#fff;border:1px solid var(--border);border-radius:6px;padding:18px;margin-bottom:16px}
.article-sidebar .block h3{font-size:14px;text-transform:uppercase;color:var(--nav);border-bottom:2px solid var(--accent);padding-bottom:8px;margin-bottom:12px;letter-spacing:.3px}
.article-sidebar .mini-post{display:flex;gap:10px;padding:8px 0;border-bottom:1px dashed #eee}
.article-sidebar .mini-post:last-child{border-bottom:0}
.article-sidebar .mini-post img{width:72px;height:52px;object-fit:cover;border-radius:4px;flex:0 0 72px}
.article-sidebar .mini-post h4{font-size:13px;margin:0;line-height:1.35;font-weight:500}
.article-sidebar .mini-post h4 a{color:#224}
.article-sidebar .mini-post h4 a:hover{color:var(--accent)}
.article-sidebar .mini-post .d{font-size:11px;color:var(--muted);margin-top:3px}
@media(max-width:900px){.article-layout{grid-template-columns:1fr}.article-sidebar{order:2}}

/* ===== About page (gioi-thieu) ===== */
.about-hero{background:linear-gradient(rgba(30,69,106,.82),rgba(30,69,106,.82)),linear-gradient(135deg,var(--nav) 0%,var(--nav-dd) 100%);color:#fff;padding:60px 0;text-align:center;position:relative}
.about-hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:30px;background:#fff;clip-path:polygon(0 100%,100% 100%,100% 0,50% 100%,0 0)}
.about-hero h1{color:#fff;font-size:38px;margin-bottom:10px;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.about-hero p{color:#e2ecf7;font-size:16px;max-width:760px;margin:0 auto}
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:40px 0}
.about-split.reverse>*:first-child{order:2}
.about-split img{width:100%;border-radius:8px;box-shadow:0 14px 36px rgba(30,69,106,.18)}
.about-split h3{color:var(--accent);font-size:12.5px;text-transform:uppercase;letter-spacing:3px;margin-bottom:8px;font-weight:700}
.about-split h2{font-size:26px;margin-bottom:14px;color:#224;position:relative;padding-bottom:12px}
.about-split h2::after{content:"";position:absolute;left:0;bottom:0;width:60px;height:3px;background:var(--accent);border-radius:2px}
.about-split p{color:#555;line-height:1.8;margin-bottom:12px}
.about-stats{background:linear-gradient(135deg,var(--nav),var(--nav-dd));color:#fff;padding:40px 0}
.about-stats .row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.about-stats .stat .num{font-size:38px;font-weight:700;color:var(--hi);line-height:1;display:block;margin-bottom:6px}
.about-stats .stat .label{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:#e2ecf7}
@media(max-width:768px){.about-hero h1{font-size:26px}.about-split{grid-template-columns:1fr;gap:20px;padding:24px 0}.about-split.reverse>*:first-child{order:0}.about-stats .row{grid-template-columns:repeat(2,1fr)}}

/* ===== Contact page ===== */
.contact-map{width:100%;height:340px;border:0;border-radius:8px;background:#eef2f7;display:block}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:28px 0}
.contact-cards .card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:28px 22px 22px;text-align:center;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.contact-cards .card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--nav),var(--accent),var(--hi));border-radius:12px 12px 0 0;opacity:.85}
.contact-cards .card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(13,59,102,.14);border-color:var(--nav)}
.contact-cards .card:hover::before{opacity:1}
.contact-cards .card .icon{width:64px;height:64px;margin:0 auto 14px;background:linear-gradient(135deg,var(--nav) 0%,var(--nav-d) 100%);color:#fff;border-radius:18px;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(52,122,182,.3),inset 0 -2px 0 rgba(0,0,0,.1);transition:transform .25s}
.contact-cards .card:hover .icon{transform:scale(1.06) rotate(-3deg)}
.contact-cards .card h3{font-size:15px;color:var(--nav);margin-bottom:10px;text-transform:uppercase;letter-spacing:1px;font-weight:700}
.contact-cards .card p{font-size:13.5px;color:#555;margin:0 0 8px;line-height:1.6;min-height:42px}
.contact-cards .card .phone-row{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:#fff5f5;border:1px solid #fecaca;border-radius:20px;font-weight:700;color:var(--accent);font-size:14px;margin-top:6px;transition:all .2s}
.contact-cards .card .phone-row:hover{background:var(--accent);color:#fff;border-color:var(--accent);transform:scale(1.04)}
.contact-cards .card .phone-row .icon{width:14px;height:14px;background:none;color:inherit;box-shadow:none;margin:0;border-radius:0}
.contact-cards .card .phone-row .icon svg{width:14px;height:14px}
.contact-cards .card a{color:var(--accent);font-weight:600;text-decoration:none}
.contact-grid-v2{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;margin-top:10px}
.contact-grid-v2 .info-panel{background:#fff;border:1px solid var(--border);border-radius:8px;padding:26px}
.contact-grid-v2 .info-panel h2{font-size:20px;color:var(--nav);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--accent);display:inline-block}
.contact-grid-v2 .info-panel .info-line{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed #eee;align-items:flex-start}
.contact-grid-v2 .info-panel .info-line:last-child{border-bottom:0}
.contact-grid-v2 .info-panel .ic{width:34px;height:34px;flex:0 0 34px;background:rgba(52,122,182,.1);color:var(--nav);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px}
.contact-grid-v2 .info-panel .info-line b{display:block;color:#224;font-size:13px;margin-bottom:2px}
.contact-grid-v2 .info-panel .info-line span{font-size:13.5px;color:#555;line-height:1.6}
@media(max-width:768px){.contact-cards{grid-template-columns:1fr}.contact-grid-v2{grid-template-columns:1fr}}

/* ===== Responsive ===== */
@media(max-width:1100px){
  .main-nav>ul>li>a{padding:12px 10px;font-size:12.5px}
}
@media(max-width:900px){
  .layout-2col{grid-template-columns:1fr}
  .sidebar{position:static}
  .product-detail{grid-template-columns:1fr}
  .services-grid{grid-template-columns:repeat(2,1fr)}
}
/* === Mobile/Tablet nav: ẩn menu desktop, hiện hamburger từ 1024px trở xuống ===
   Trước đây breakpoint chỉ là 768px nên ở 769-1100px menu ngang bị "rớt" cạnh logo do thiếu chỗ.
   Dùng !important để chặn .main-nav{display:flex} ở rule gốc (line 85) khỏi tái áp dụng. */
@media(max-width:1024px){
  .hamburger{display:block!important;order:2;flex:0 0 auto}
  .header-row{display:flex;flex-wrap:wrap;align-items:center;padding:8px 0;min-height:60px;gap:10px;row-gap:0}
  .header-row .logo{order:1;flex:0 0 auto;margin-right:auto}
  .header-row .hotline-btn{order:3;flex:0 0 auto;margin-left:auto}
  .header-search{order:98;flex:0 0 100%;display:none}
  .main-nav.open ~ .header-search,.header-row.menu-open .header-search{display:flex}
  .main-nav{order:99;flex:0 0 100%!important;display:none!important;padding:10px 0;border-top:1px solid var(--border);width:100%}
  .main-nav.open{display:block!important}
  .main-nav>ul{flex-direction:column;gap:0;width:100%}
  .main-nav>ul>li{width:100%}
  .main-nav>ul>li>a{padding:12px;border-bottom:1px solid var(--border);border-radius:0}
  .main-nav>ul>li>a::after{display:none}
  .main-nav ul ul,.main-nav .mega-menu{display:none;position:static;box-shadow:none;padding-left:16px;border-top:0;background:var(--bg);width:100%;left:auto;right:auto;transform:none;min-width:0}
  .main-nav li:hover>ul,.main-nav li:focus-within>ul,.main-nav li:hover>.mega-menu,.main-nav li:focus-within>.mega-menu{display:none}
  .main-nav li.open>ul,.main-nav li.has-mega.open>.mega-menu{display:block}
}
@media(max-width:768px){
  h1{font-size:22px}h2{font-size:19px}
  .logo img{height:42px}
  .section{padding:30px 0}
  .section-head{margin-bottom:22px}
  .section-head h2{font-size:19px;padding:0 10px 12px}
  .section-head h2::before,.section-head h2::after{width:20px}
  .section-head h2::before{margin-right:-14px}
  .section-head h2::after{margin-left:-14px}
  .products-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .product-card h3{font-size:13px;min-height:34px}
  .product-card .actions .btn{font-size:10.5px;padding:7px 4px}
  .logo-text{display:none}
  .topbar{display:none}
  .hotline-btn{padding:8px 12px;font-size:12px}
  .floating-actions{right:10px;bottom:10px}
  .floating-actions a{width:46px;height:46px;font-size:18px}
}
@media(max-width:420px){
  .products-grid{grid-template-columns:repeat(2,1fr)}
  .hotline-btn span,.hotline-btn{font-size:11px}
}

/* Filter sidebar */
.filter-sidebar h3{display:flex;justify-content:space-between;align-items:center}
.filter-sidebar .filter-clear{font-size:12px;font-weight:400;color:var(--accent);text-decoration:underline}
.filter-sidebar fieldset{border:0;padding:0;margin:0 0 14px;border-top:1px solid #eee;padding-top:10px}
.filter-sidebar fieldset:first-of-type{border-top:0;padding-top:0}
.filter-sidebar legend{font-size:13px;font-weight:600;color:#222;margin-bottom:6px;padding:0;text-transform:uppercase;letter-spacing:.3px}
.filter-sidebar label{display:flex;align-items:center;gap:6px;font-size:13.5px;color:#444;padding:4px 0;cursor:pointer;line-height:1.3}
.filter-sidebar label:hover{color:var(--accent)}
.filter-sidebar input[type=radio]{margin:0;accent-color:var(--accent)}
.filter-active-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 14px;padding:10px 14px;background:#fff8f0;border-left:3px solid var(--accent);border-radius:6px;font-size:13px}
.filter-active-bar .badge-count{background:var(--accent);color:#fff;padding:3px 10px;border-radius:12px;font-weight:600;font-size:12.5px}
.filter-active-bar .filter-chip{background:#fff;border:1px solid #ddd;padding:2px 9px;border-radius:12px;color:#444}
.filter-active-bar .filter-clear-link{margin-left:auto;color:var(--accent);text-decoration:underline;font-size:12.5px}
@media (max-width:860px){.filter-sidebar fieldset{display:inline-block;margin-right:14px;vertical-align:top}}