/* Hợp Tiến – bản mẫu website (prototype) */
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/be-vietnam-pro-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/be-vietnam-pro-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:800;font-display:swap;src:url(fonts/be-vietnam-pro-vietnamese-800-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:800;font-display:swap;src:url(fonts/be-vietnam-pro-latin-800-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/inter-vietnamese-400-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/inter-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/inter-vietnamese-500-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/inter-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/inter-vietnamese-600-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/inter-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/inter-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url(fonts/inter-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  --green:#267336; --green-dark:#1B5427; --green-light:#8BD025; --green-pale:#EAF5EC;
  --red:#E21D25; --ink:#1B1F1C; --muted:#5C665E; --line:#DCE3DD; --bg:#F5F7F5; --white:#fff;
  --radius:10px; --shadow:0 6px 24px rgba(20,40,25,.08);
  --font:"Inter","Segoe UI",Roboto,Arial,sans-serif; --font-head:"Be Vietnam Pro","Inter","Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.15;margin:0 0 .5em;font-weight:800;letter-spacing:-.015em}
h1{font-size:2.6rem}h2{font-size:2rem}h3{font-size:1.15rem;font-weight:700;letter-spacing:0}h4{font-size:1rem;letter-spacing:0}
p{margin:0 0 1em}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.section.alt{background:var(--bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.section-head p{color:var(--muted);margin:0;max-width:640px}
.eyebrow{color:var(--green);font-weight:800;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:8px;font-family:var(--font-head)}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.grid{display:grid;gap:20px}
.grid>*{min-width:0}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-main{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr)}
@media(max-width:900px){.grid-main{grid-template-columns:1fr}}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}
.grid-6{grid-template-columns:repeat(6,1fr)}
@media(max-width:960px){.grid-5{grid-template-columns:repeat(3,1fr)}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.grid-6{grid-template-columns:repeat(3,1fr)}h1{font-size:2rem}}
@media(max-width:640px){.btn{white-space:normal;text-align:center}.grid-5{grid-template-columns:repeat(2,1fr);gap:12px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.grid-6{grid-template-columns:repeat(2,1fr)}.section{padding:40px 0}h1{font-size:1.7rem}h2{font-size:1.45rem}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:8px;font-weight:600;border:2px solid transparent;cursor:pointer;font-size:.95rem;transition:.15s;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark)}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#B8151C}
.btn-outline{border-color:var(--green);color:var(--green);background:#fff}
.btn-outline:hover{background:var(--green-pale)}
.btn-white{background:#fff;color:var(--green)}
.btn-sm{padding:8px 14px;font-size:.85rem}
.btn-block{width:100%;justify-content:center}

/* Topbar + header */
.topbar{background:var(--green-dark);color:#DDEBDF;font-size:.82rem}
@media (max-width:1240px){.topbar .hide-l{display:none}}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px;gap:12px;white-space:nowrap}
.topbar .container>div:first-child{overflow:hidden;text-overflow:ellipsis;min-width:0}
.topbar .container>div:last-child{flex:none}
.topbar a{color:#fff}
.topbar .langs{display:inline-flex;gap:5px}  /* V72: hai nút VN / EN kèm cờ */
.topbar .lang{color:#fff;display:inline-flex;align-items:center;gap:5px;border:1px solid rgba(255,255,255,.45);border-radius:4px;padding:1px 6px;font-weight:700;letter-spacing:.3px;line-height:1.4;opacity:.72}
.topbar .lang.on{opacity:1;background:rgba(255,255,255,.16);border-color:#fff}
.topbar .lang svg{width:17px;height:12px;border-radius:2px;flex:none;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.topbar .lang a{padding:0 6px;opacity:.7}.topbar .lang a.on{opacity:1;font-weight:700;text-decoration:underline}
header.site{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(0,0,0,.04)}
header.site .container{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.logo img{height:44px;width:auto}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
nav.main a{display:block;white-space:nowrap;padding:10px 12px;color:var(--ink);font-weight:600;font-size:.93rem;border-radius:6px}
nav.main a:hover,nav.main a.active{background:var(--green-pale);color:var(--green);text-decoration:none}
.header-cta{display:flex;gap:10px;align-items:center}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:1.1rem;cursor:pointer}
@media(max-width:1024px){
  nav.main{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 16px}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;gap:0}
  .header-cta .btn{display:none}
  .burger{display:block}
  .topbar .hide-m{display:none}
}

/* Hero */
.hero{position:relative;color:#fff;background:linear-gradient(105deg,#173F1F 0%,#267336 55%,#2F8A42 100%);overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 85% 20%,rgba(139,208,37,.25),transparent 40%),
  repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 2px,transparent 2px 22px)}
.hero .container{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero h1{font-size:2.85rem;margin-bottom:16px;letter-spacing:-.02em;line-height:1.08}
.hero p.lead{font-size:1.15rem;opacity:.92;max-width:600px;line-height:1.55}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.hero .trust{margin-top:26px;display:flex;gap:18px;flex-wrap:wrap;font-size:.85rem;opacity:.9}
.hero .trust span{display:inline-flex;align-items:center;gap:6px}
.hero-visual{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:22px;backdrop-filter:blur(2px)}
.hero-visual .ph{aspect-ratio:4/3;border-radius:10px;background:repeating-linear-gradient(45deg,rgba(255,255,255,.08) 0 10px,rgba(255,255,255,.02) 10px 20px);display:flex;align-items:center;justify-content:center;text-align:center;padding:20px;color:#DDEBDF;font-size:.9rem}
@media(max-width:900px){.hero .container{grid-template-columns:1fr}.hero h1{font-size:2.2rem}}

/* Stats */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:22px 16px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:2.6rem;color:var(--green);line-height:1;font-family:var(--font-head);font-weight:800;letter-spacing:-.02em}
.stat span{color:var(--muted);font-size:.9rem}
@media(max-width:640px){.stats .container{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat{border-bottom:1px solid var(--line)}}

/* Cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:.15s;position:relative}
.card:hover{box-shadow:var(--shadow);border-color:#C9D9CC}
.card h3{font-size:1.05rem}
.card .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--green);background:var(--green-pale);padding:3px 8px;border-radius:4px;margin-bottom:8px}
.card .tag.red{color:var(--red);background:#FCE8E9}
.card .tag.grey{color:var(--muted);background:#EEF1EE}
.card p{color:var(--muted);font-size:.92rem;margin-bottom:10px}
.card .more{font-weight:600;font-size:.9rem}
.card.link{cursor:pointer}
.icon-card{display:flex;gap:14px;align-items:flex-start}
.icon{width:44px;height:44px;border-radius:10px;background:var(--green-pale);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;flex:none;font-size:1.05rem}

/* Product card */
.pcard{display:flex;flex-direction:column;gap:8px}
.pcard .pimg{aspect-ratio:16/9;border-radius:8px;background:linear-gradient(135deg,#EEF4EE,#DCE8DE);display:flex;align-items:center;justify-content:center;color:#7C8C7F;font-size:.78rem;text-align:center;padding:10px}
.pcard .brand{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:700}
.pcard h3{margin:0;font-size:1.02rem}
.pcard .certs{display:flex;gap:6px;flex-wrap:wrap}
.chip{display:inline-block;font-size:.72rem;padding:3px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:#fff}
.chip.h1{border-color:#BFE3C4;color:var(--green);background:var(--green-pale)}
.pcard .actions{display:flex;gap:8px;margin-top:auto;padding-top:6px}
.note-demo{font-size:.72rem;color:#9A6B00;background:#FFF5DB;border:1px solid #F5E1A4;padding:2px 8px;border-radius:4px;display:inline-block}

/* Brand strip */
.brands{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.brand-badge{border:1px solid var(--line);border-radius:8px;padding:12px 18px;font-weight:800;color:#3B4A3E;background:#fff;letter-spacing:.02em;min-width:120px;text-align:center}
.brand-badge small{display:block;font-weight:500;color:var(--muted);font-size:.72rem;letter-spacing:0}
.brand-badge:hover{border-color:var(--green);color:var(--green);text-decoration:none}

/* Certs */
.cert{display:flex;gap:12px;align-items:flex-start}
.cert .badge{width:56px;height:56px;border-radius:50%;border:3px solid var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.7rem;color:var(--green);text-align:center;flex:none;line-height:1.05;padding:4px}
.cert h4{margin:0 0 4px;font-size:.98rem}
.cert p{margin:0;font-size:.85rem;color:var(--muted)}

/* Industries */
.ind{--c:var(--green);padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;align-items:flex-start;gap:14px;color:var(--ink);transition:.15s;position:relative;overflow:hidden}
.ind:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--c)}
.ind:hover{border-color:var(--c);text-decoration:none;box-shadow:var(--shadow);transform:translateY(-2px)}
.ind:hover b{color:var(--c)}
.ind-t{display:flex;flex-direction:column;gap:3px;min-width:0}
.ind-t b{font-weight:700;font-size:.98rem;line-height:1.3}
.ind-t small{color:var(--muted);font-size:.8rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ind-ic{--c:var(--green);flex:none;width:52px;height:52px;border-radius:12px;background:var(--c);color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
.ind-ic svg{width:28px;height:28px}
.ind-ic.sm{width:40px;height:40px;border-radius:10px}.ind-ic.sm svg{width:22px;height:22px}
.card-ic-row{display:flex;align-items:center;gap:12px;margin-bottom:8px}.card-ic-row h3{margin:0}

/* Switch-check block */
.switch{background:var(--green-dark);color:#fff;border-radius:16px;padding:32px;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.switch h2{color:#fff}
.switch p{color:#D6E6D9}
.switch form{background:#fff;border-radius:12px;padding:18px;color:var(--ink)}
@media(max-width:900px){.switch{grid-template-columns:1fr}}

/* Forms */
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #C9D2CB;border-radius:6px;font:inherit;font-size:.95rem;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid var(--green-light);border-color:var(--green)}
.field{margin-bottom:12px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}
.promise{display:flex;gap:10px;align-items:center;font-size:.85rem;color:var(--green);font-weight:600;margin-top:8px}

/* Case studies */
.case{border-left:4px solid var(--green-light)}
.case .num{font-size:1.9rem;font-weight:800;color:var(--green);line-height:1}
.case .who{font-size:.82rem;color:var(--muted)}

/* Customers */
.customers{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.customers span{padding:8px 14px;border-radius:6px;background:#fff;border:1px solid var(--line);font-weight:600;color:#4A574D;font-size:.85rem}

/* CTA band */
.cta-band{background:linear-gradient(90deg,var(--green),#2F8A42);color:#fff;border-radius:16px;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0 0 6px}
.cta-band p{margin:0;opacity:.9}

/* Footer */
footer.site{background:#132E19;color:#B9CDBD;padding:48px 0 24px;font-size:.9rem;margin-top:40px}
footer.site h4{color:#fff;font-size:.95rem;margin-bottom:12px}
footer.site a{color:#DDEBDF}
footer.site ul{list-style:none;margin:0;padding:0}
footer.site li{margin-bottom:6px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}
footer .legal{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;font-size:.8rem;color:#8FA894}
footer .legal>span{min-width:0;flex:1 1 320px;line-height:1.5}footer .legal>span:last-child{flex:0 1 auto;text-align:right}
@media(max-width:640px){footer .legal>span:last-child{text-align:left}}
footer .logo-w{background:#fff;display:inline-block;padding:8px 12px;border-radius:8px;margin-bottom:12px}
footer .logo-w img{height:34px}
@media(max-width:900px){footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){footer .cols{grid-template-columns:1fr}}

/* Floating Zalo */

.callbar{display:none}
@media(max-width:640px){
  .callbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);padding:8px 10px;gap:8px}
  .callbar a{flex:1;justify-content:center}

  body{padding-bottom:64px}
}

/* Page header */
.page-head{background:var(--bg);border-bottom:1px solid var(--line);padding:30px 0}
.page-head h1{margin:6px 0 6px;font-size:2rem}
.page-head p{color:var(--muted);margin:0;max-width:760px}
.crumbs{font-size:.82rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px}

/* Product listing */
.listing{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:start}
.filters{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px;position:sticky;top:90px}
.filters h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:14px 0 8px}
.filters h4:first-child{margin-top:0}
.filters label{display:flex;align-items:center;gap:8px;font-weight:500;font-size:.9rem;margin:5px 0;cursor:pointer}
.filters label.child{padding-left:22px;font-size:.86rem;color:#3F4B42}
.filters input[type=checkbox]{width:auto}
.filters .clear{font-size:.82rem}
.results-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.results-head .count{color:var(--muted);font-size:.9rem}
.active-chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.active-chips .chip{background:var(--green-pale);border-color:#BFE3C4;color:var(--green);cursor:pointer}
@media(max-width:900px){.listing{grid-template-columns:1fr}.filters{position:static}}
.empty{padding:40px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:10px}

/* Product detail */
.pd-top{display:grid;grid-template-columns:1fr 1.3fr;gap:32px;align-items:start}
.pd-img{aspect-ratio:4/3;border-radius:12px;background:linear-gradient(135deg,#EEF4EE,#DCE8DE);display:flex;align-items:center;justify-content:center;color:#7C8C7F;text-align:center;padding:20px;font-size:.85rem}
.pd-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.spec{width:100%;border-collapse:collapse;font-size:.92rem}
.spec th,.spec td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:48%;color:var(--muted);font-weight:600}
.pd-side{background:var(--bg);border-radius:12px;padding:20px}
.pd-side h4{margin-bottom:10px}
.docs a{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;margin-bottom:8px;font-weight:600;font-size:.9rem}
.docs a:hover{border-color:var(--green);text-decoration:none}
.faq details{border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin-bottom:8px;background:#fff}
.faq summary{font-weight:600;cursor:pointer}
.faq p{margin:8px 0 0;color:var(--muted);font-size:.92rem}
@media(max-width:900px){.pd-top{grid-template-columns:1fr}}

/* Anchored company page */
.anchor-nav{position:sticky;top:74px;background:#fff;border-bottom:1px solid var(--line);z-index:40}
.anchor-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;overflow-x:auto}
.anchor-nav a{display:block;padding:12px 14px;font-weight:600;font-size:.9rem;color:var(--ink);white-space:nowrap;border-bottom:3px solid transparent}
.anchor-nav a:hover{color:var(--green);text-decoration:none;border-color:var(--green-light)}
.prose{max-width:800px}
.prose p{font-size:1.02rem}
.photo-ph{aspect-ratio:16/9;border-radius:12px;background:repeating-linear-gradient(45deg,#E9EFEA 0 12px,#F5F7F5 12px 24px);display:flex;align-items:center;justify-content:center;color:#7C8C7F;font-size:.85rem;text-align:center;padding:20px}
.timeline{list-style:none;padding:0;margin:0;border-left:2px solid var(--green-light)}
.timeline li{padding:0 0 18px 18px;position:relative}
.timeline li:before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--green)}
.timeline b{color:var(--green)}

/* Service steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px}
.step:before{counter-increment:s;content:counter(s);display:flex;width:30px;height:30px;border-radius:50%;background:var(--green);color:#fff;align-items:center;justify-content:center;font-weight:700;margin-bottom:10px}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}

/* Article */
.article{max-width:780px}
.article h2{font-size:1.35rem;margin-top:1.6em}
.article blockquote{border-left:4px solid var(--green-light);margin:1.2em 0;padding:8px 16px;background:var(--bg);color:#3F4B42}
.callout{background:var(--green-pale);border:1px solid #BFE3C4;border-radius:10px;padding:16px 18px;margin:1.2em 0}

/* Proto banner */
.proto{background:#FFF5DB;color:#6B4B00;border-bottom:1px solid #F5E1A4;font-size:.8rem;text-align:center;padding:6px 12px}

/* Certificates */
.certfig{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}
.certfig img{border-radius:8px;border:1px solid var(--line);width:100%}
.certfig figcaption{margin-top:10px;font-size:.9rem;line-height:1.45}
.certfig.compact{max-width:520px}
.certgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;align-items:start}
@media(max-width:800px){.certgrid{grid-template-columns:1fr}}

/* View-only & gated docs */
.viewonly{position:relative;user-select:none;-webkit-user-select:none}
.viewonly img{pointer-events:none}
.viewonly .vo-tag{position:absolute;left:8px;bottom:8px;background:rgba(27,84,39,.85);color:#fff;font-size:.7rem;padding:3px 8px;border-radius:4px}
.gate{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--bg)}
.gate-list{display:grid;gap:6px;font-size:.92rem;margin-bottom:12px}
.gate-form{background:#fff;border-radius:8px;padding:14px}

/* Consent (bảo vệ dữ liệu cá nhân) */
.consent{display:flex;gap:8px;align-items:flex-start;font-size:.8rem;color:var(--muted);margin:10px 0 12px;line-height:1.4}
.consent input{margin-top:3px;flex:none;width:auto;height:auto;padding:0}.consent span{min-width:0;flex:1 1 0;overflow-wrap:anywhere}
.legal-page h2{font-size:1.25rem;margin-top:28px}.legal-page p,.legal-page li{font-size:.95rem}

footer .tagline{color:#B7E36A;font-weight:700;font-size:.95rem;margin:10px 0 14px;letter-spacing:.01em}

.customers span.logo-ph{height:78px;min-width:132px;height:56px;display:inline-flex;align-items:center;justify-content:center;background:#F3F5F3;border:1px dashed #C9D3CC;color:#7C8C7F;font-weight:700;font-size:.8rem;letter-spacing:.02em;filter:grayscale(1)}

/* Đang dùng dầu khác? – thanh trên trang danh sách sản phẩm */
.swbar{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--green-pale);border:1px solid #BFE3C4;border-radius:10px;padding:12px 16px;margin:0 0 18px}
.swbar>div:first-child{min-width:0;font-size:.92rem}
.swbar-in{display:flex;gap:8px;flex:none;width:min(46%,480px)}
.swbar-in input{flex:1;min-width:0;padding:9px 10px;border:1px solid var(--line);border-radius:6px;font:inherit;font-size:.9rem}
@media(max-width:900px){.swbar{flex-direction:column;align-items:stretch}.swbar-in{width:100%}}


.customers span.logo{min-width:132px;height:78px;display:inline-flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:6px;padding:8px 14px;transition:.15s}
.customers span.logo:hover{box-shadow:var(--shadow)}
.customers span.logo img{max-height:58px;max-width:128px;width:auto;height:auto}

/* photos */
img.photo{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:12px;background:#E9EFEA}
.hero-visual img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px}
.card.card-img{padding:0;overflow:hidden}
.card.card-img img.photo,.card.card-img .photo-ph.thumb{border-radius:0;aspect-ratio:16/9;height:auto}
.card.card-img .card-body{padding:18px 20px 20px}
.icon-card .icon:has(img){width:112px;height:80px;flex:none;border-radius:8px;overflow:hidden;background:none;padding:0}
.icon-card .icon img.photo{width:100%;height:100%;aspect-ratio:auto;border-radius:0}
.team-grid figure{margin:0}.team-grid img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:12px}
.team-grid figcaption{font-size:.85rem;color:var(--muted);margin-top:8px;text-align:center}
figure.photo-cap{margin:0}figure.photo-cap figcaption{font-size:.82rem;color:var(--muted);margin-top:8px}
@media(max-width:600px){.icon-card .icon:has(img){width:88px;height:64px}}

.brand-badge.has-logo{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-width:150px;height:104px;padding:10px 18px}
.brand-badge.has-logo img{max-height:56px;max-width:140px;width:auto;height:auto;display:block}
.brand-head{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.brand-head img{height:48px;width:auto;background:#fff;padding:6px 10px;border-radius:8px;border:1px solid var(--line)}
.supplier-card img{height:40px;width:auto;display:block;margin-bottom:12px}

@media(max-width:600px){.ind{padding:12px;gap:10px}.ind-ic{width:44px;height:44px}.ind-ic svg{width:24px;height:24px}}

.pcard .pimg.has-img{padding:0;background:#fff;border:1px solid var(--line);overflow:hidden}
.pcard .pimg.has-img img{width:100%;height:100%;object-fit:contain;display:block}
.pd-img.has-img{padding:0;background:#fff;border:1px solid var(--line);overflow:hidden}
.pd-img.has-img img{width:100%;height:100%;object-fit:contain;display:block}

.team-cards .card .ind-ic{margin-bottom:12px}

.brand-photos figcaption{font-size:.8rem;line-height:1.35}

/* social + dock */
footer .social{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 0}
footer .social a.soc{display:inline-flex;align-items:center;gap:7px;padding:7px 14px 7px 9px;border-radius:999px;background:var(--c);color:#fff;font-weight:700;font-size:.85rem;border:0;box-shadow:0 3px 10px rgba(0,0,0,.25)}
footer .social a.soc svg{width:20px;height:20px;flex:none}
footer .social a.soc-zalo svg{width:22px;height:22px;border-radius:5px}
footer .social a.soc:hover{filter:brightness(1.12);text-decoration:none}
.dock{position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:10px}
.dock a{--c:#2F8A42;position:relative;width:48px;height:48px;border-radius:50%;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.28);transition:.15s}
.dock a svg{width:26px;height:26px}
.dock a.dock-zalo svg{width:34px;height:34px;border-radius:8px}
.dock a b{position:absolute;right:56px;top:50%;transform:translateY(-50%);background:#173F1F;color:#fff;font-size:.8rem;font-weight:600;padding:5px 10px;border-radius:6px;white-space:nowrap;opacity:0;pointer-events:none;transition:.15s}
.dock a:hover{transform:scale(1.08);text-decoration:none}.dock a:hover b{opacity:1}
.dock a.dock-phone{animation:ring 2.4s ease-in-out infinite}
@keyframes ring{0%,80%,100%{box-shadow:0 6px 18px rgba(0,0,0,.28)}40%{box-shadow:0 0 0 8px rgba(47,138,66,.25),0 6px 18px rgba(0,0,0,.28)}}
@media(max-width:640px){.dock{right:10px;gap:8px;top:auto;bottom:86px;transform:none}.dock a{width:42px;height:42px}.dock a svg{width:22px;height:22px}.dock a.dock-zalo svg{width:30px;height:30px}.dock a b{display:none}.dock a.dock-facebook,.dock a.dock-linkedin,.dock a.dock-mail{display:none}}

/* type refinements */
.section-head p,.card p,.page-head p{font-size:1rem}
.card h3{font-size:1.1rem}
.btn{font-weight:700;letter-spacing:.005em}
nav.main a{font-weight:600}
.small{font-size:.875rem}
figcaption,.photo-cap figcaption{font-size:.82rem}
.page-head h1{font-size:2.5rem}
@media(max-width:640px){body{font-size:16px}h2{font-size:1.55rem}.page-head h1{font-size:1.8rem}.stat b{font-size:2rem}}

/* =====================================================================
   V41 – LÀM MỚI THẨM MỸ TOÀN SITE (màu, chữ, khoảng cách, hiệu ứng)
   Một lớp ghi đè thống nhất cho mọi trang. Tông: kỹ thuật – chuyên nghiệp – tối giản.
   ===================================================================== */
:root{
  --green:#1F7A3B; --green-dark:#155C2B; --green-deep:#0E3D1E; --green-light:#8BD025; --lime:#A6E23A; --green-pale:#EAF6EC; --green-tint:#F2F8F3;
  --red:#D91E26; --red-dark:#B3141B;
  --ink:#10201A; --ink-2:#1B2E24; --ink-3:#2E4237; --muted:#5E6B63; --muted-2:#8A968E;
  --line:#E2E8E4; --line-2:#CFD9D2; --bg:#F4F7F5; --bg-2:#EDF2EE;
  --radius:14px; --radius-sm:10px; --radius-lg:20px;
  --shadow:0 10px 30px -10px rgba(16,32,26,.18),0 2px 6px rgba(16,32,26,.05);
  --shadow-lg:0 30px 60px -20px rgba(16,32,26,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}
html{-webkit-text-size-adjust:100%}
body{font-size:16.5px;line-height:1.65;color:var(--ink);font-feature-settings:"ss01","cv11"}
::selection{background:var(--lime);color:var(--ink)}
a{color:var(--green);transition:color .15s}
a:hover{color:var(--green-dark)}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.02em}
h1{font-size:3rem;line-height:1.06}
h2{font-size:2.15rem;line-height:1.12}
h3{font-size:1.15rem;line-height:1.3;letter-spacing:-.01em}
.section{padding:72px 0}
.section.alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.section-head{margin-bottom:34px}
.section-head p{font-size:1.05rem;line-height:1.6}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.72rem;letter-spacing:.16em;color:var(--green)}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--green-light);border-radius:2px}
.muted{color:var(--muted)}

/* Nút */
.btn{border-radius:10px;padding:12px 22px;font-size:.95rem;font-weight:700;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .15s,color .15s,border-color .15s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--green);box-shadow:0 8px 18px -8px rgba(31,122,59,.6)}
.btn-primary:hover{background:var(--green-dark);box-shadow:0 12px 22px -8px rgba(31,122,59,.65)}
.btn-red{background:var(--red);box-shadow:0 8px 18px -8px rgba(217,30,38,.6)}
.btn-red:hover{background:var(--red-dark);box-shadow:0 12px 22px -8px rgba(217,30,38,.65)}
.btn-outline{border-color:var(--line-2);color:var(--ink-3);background:#fff}
.btn-outline:hover{border-color:var(--green);color:var(--green);background:var(--green-tint)}
.btn-white{background:#fff;color:var(--green-deep);box-shadow:0 10px 24px -10px rgba(0,0,0,.5)}
.btn-white:hover{background:#F2F8F3}
.btn-sm{padding:9px 16px;font-size:.86rem;border-radius:9px}

/* Thanh trên + header */
.proto{background:#FFF8E5;color:#7A5300;border-bottom:1px solid #F3E2B0;font-size:.78rem}
.topbar{background:#1A4A2D;color:#D5E5DA;font-size:.8rem;letter-spacing:.01em}
.topbar a{color:#fff;font-weight:600}
header.site{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(16,32,26,.02),0 8px 24px -18px rgba(16,32,26,.25)}
header.site .container{height:78px}
.logo img{height:46px}
nav.main a{font-size:.94rem;font-weight:600;padding:10px 13px;border-radius:8px;color:var(--ink-2);position:relative}
nav.main a:hover{background:var(--green-tint);color:var(--green)}
nav.main a.active{background:none;color:var(--green)}
nav.main a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:var(--green-light)}
@media(max-width:1024px){nav.main{top:78px;box-shadow:0 20px 30px -20px rgba(0,0,0,.3)}nav.main a.active{background:var(--green-tint)}nav.main a.active:after{display:none}}

/* Hero: nền tối kỹ thuật + lưới bản vẽ + ánh xanh */
.hero{background:radial-gradient(1100px 560px at 80% 8%,rgba(139,208,37,.20),transparent 60%),radial-gradient(700px 420px at 8% 100%,rgba(255,255,255,.07),transparent 60%),linear-gradient(160deg,#1A4A2D 0%,#1F5A36 50%,#25693E 100%)}
.hero:before{background:
  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:linear-gradient(180deg,rgba(0,0,0,.7),rgba(0,0,0,.15));-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25))}
.hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(166,226,58,.5),transparent)}
.hero .container{padding-top:76px;padding-bottom:76px;gap:56px}
.hero .eyebrow{color:var(--lime)!important}
.hero .eyebrow:before{background:var(--lime)}
.hero h1{font-size:3.15rem;color:#fff;letter-spacing:-.025em;text-wrap:balance}
.hero p.lead{font-size:1.12rem;color:#E3EEE6;opacity:1;line-height:1.6}
.hero .trust{color:#DCEADF;font-size:.86rem;gap:10px 22px}
.hero .trust span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);padding:6px 12px;border-radius:999px}
.hero-visual{background:none;border:0;padding:0;backdrop-filter:none;position:relative}
.hero-visual:before{content:"";position:absolute;inset:-14px;border-radius:24px;border:1px solid rgba(166,226,58,.25);pointer-events:none}
.hero-visual:after{content:"";position:absolute;right:-18px;bottom:-18px;width:120px;height:120px;border-right:2px solid rgba(166,226,58,.55);border-bottom:2px solid rgba(166,226,58,.55);border-radius:0 0 24px 0;pointer-events:none}
.hero-visual img{border-radius:18px;box-shadow:0 34px 70px -30px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.12)}
@media(max-width:900px){.hero .container{padding-top:48px;padding-bottom:56px;gap:32px}.hero h1{font-size:2.25rem}.hero-visual:after{display:none}.hero-visual:before{inset:-8px;border-radius:22px}}

/* Con số */
.stats{background:#fff;border-bottom:1px solid var(--line);position:relative}
.stat{padding:30px 16px}
.stat b{font-size:2.8rem;color:var(--green-dark);letter-spacing:-.03em;position:relative;display:inline-block}
.stat b:after{content:"";display:block;width:34px;height:3px;border-radius:3px;background:var(--green-light);margin:10px auto 0}
.stat span{display:block;margin-top:6px;font-size:.9rem;color:var(--muted)}

/* Thẻ */
.card{border-radius:var(--radius);border:1px solid var(--line);box-shadow:0 1px 2px rgba(16,32,26,.03);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.card h3{font-size:1.12rem}
.card p{font-size:.94rem;line-height:1.6}
.card .tag{border-radius:6px;font-size:.7rem;letter-spacing:.08em;padding:4px 9px}
.card .more{color:var(--green);font-weight:700}
.card .more:after{content:"";display:inline-block;width:0;transition:width .2s}
.icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--green-pale),#DDF0E1);color:var(--green-dark)}
.icon-card .icon:has(img){border-radius:10px}

/* Sản phẩm */
.pcard{gap:10px;padding:16px}
.pcard .pimg{aspect-ratio:4/3;border-radius:10px;background:linear-gradient(160deg,#F7FAF8,#E9F0EB)}
.pcard .pimg.has-img{border:1px solid var(--line);background:#fff;position:relative}
.pcard .pimg.has-img img{transition:transform .5s var(--ease)}
.pcard:hover .pimg.has-img img{transform:scale(1.04)}
.pcard .brand{font-size:.72rem;letter-spacing:.1em;color:var(--green)}
.pcard h3{font-size:1.04rem;letter-spacing:-.01em}
.chip{border-radius:999px;font-size:.72rem;padding:3px 9px;font-weight:600}
.chip.h1{border-color:#BFE3C4;background:var(--green-pale);color:var(--green-dark)}
.note-demo{border-radius:6px}
.pd-img{border-radius:var(--radius)}
.pd-img.has-img{box-shadow:var(--shadow)}
.spec{font-size:.93rem}
.spec th{color:var(--muted);font-weight:600}
.spec tr:hover td,.spec tr:hover th{background:var(--green-tint)}
.pd-side{border:1px solid var(--line);background:linear-gradient(180deg,#fff,var(--bg));border-radius:var(--radius)}
.docs a{border-radius:10px}
.docs a:hover{box-shadow:var(--shadow);transform:translateY(-1px);color:var(--green)}
.faq details{border-radius:10px}
.faq details[open]{border-color:#BFE3C4;background:var(--green-tint)}

/* Thương hiệu */
.brand-badge{border-radius:12px;box-shadow:0 1px 2px rgba(16,32,26,.03);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s}
.brand-badge:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.brand-badge.has-logo{min-width:156px;height:108px}
.brand-badge.has-logo img{filter:saturate(.95)}
.brand-photos img.photo{border-radius:12px;box-shadow:0 1px 2px rgba(16,32,26,.05);transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.brand-photos figure:hover img.photo{transform:translateY(-3px);box-shadow:var(--shadow)}

/* Ngành */
.ind{border-radius:var(--radius);padding:18px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s}
.ind:before{width:4px}
.ind:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.ind-ic{border-radius:13px;box-shadow:inset 0 -3px 0 rgba(0,0,0,.14),0 6px 14px -8px var(--c)}
.ind-t b{font-size:1rem}

/* Chứng nhận / huy hiệu tròn */
.cert .badge{border-width:2px;border-color:var(--green);color:var(--green-dark);background:var(--green-tint)}

/* Khối tìm dầu thay thế + dải CTA */
.switch{background:radial-gradient(700px 300px at 90% 0%,rgba(139,208,37,.22),transparent 60%),linear-gradient(140deg,#0E3D1E,#155C2B 60%,#1F7A3B);border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow-lg)}
.switch form{border-radius:14px;padding:22px;box-shadow:0 20px 40px -20px rgba(0,0,0,.4)}
.cta-band{background:radial-gradient(600px 300px at 100% 0%,rgba(166,226,58,.25),transparent 60%),linear-gradient(120deg,#155C2B,#1F7A3B 60%,#2A8F48);border-radius:var(--radius-lg);padding:42px 44px;box-shadow:var(--shadow-lg)}
.cta-band h2{color:#fff;font-size:1.8rem}
.cta-band p{color:#DCEBDF}
.swbar{border-radius:12px;background:var(--green-tint);border-color:#CFE6D4}

/* Biểu mẫu */
label{font-size:.84rem;color:var(--ink-2)}
input,select,textarea{border-radius:10px;padding:11px 13px;border-color:var(--line-2);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(31,122,59,.14)}
.promise{color:var(--green-dark)}

/* Đầu trang con: tối kỹ thuật, đồng bộ với hero */
.page-head{background:radial-gradient(900px 300px at 85% 0%,rgba(139,208,37,.18),transparent 60%),linear-gradient(160deg,#1A4A2D,#215E38);border-bottom:0;padding:44px 0 40px;position:relative;overflow:hidden}
.page-head:before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}
.page-head:after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(166,226,58,.5),transparent)}
.page-head .container{position:relative}
.page-head h1{color:#fff;font-size:2.5rem;letter-spacing:-.025em;margin:10px 0 10px}
.page-head p{color:#DCEADF;font-size:1.02rem}
.page-head .crumbs,.page-head .crumbs a{color:#B3CCBB}
.page-head .crumbs a:hover{color:#fff}
.page-head .brand-head img{border:0}
.page-head .btn-outline{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.25);color:#fff}
.page-head .btn-outline:hover{background:#fff;color:var(--green-deep)}
.page-head .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#DCEBDF}
.page-head .muted,.page-head .small{color:#B3CCBB}
.anchor-nav{top:78px;box-shadow:0 8px 20px -16px rgba(16,32,26,.3)}
.anchor-nav a:hover,.anchor-nav a.on{border-color:var(--green-light);color:var(--green)}

/* Bộ lọc & danh sách */
.filters{border-radius:var(--radius);top:94px;box-shadow:0 1px 2px rgba(16,32,26,.03)}
.filters h4{color:var(--green-dark);letter-spacing:.1em;font-size:.74rem}
.filters label:hover{color:var(--green)}
.empty{border-radius:var(--radius)}

/* Khách hàng */
.customers{gap:12px}
.customers span.logo{border-radius:12px;height:84px;min-width:140px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .2s}
.customers span.logo:hover{transform:translateY(-3px);border-color:var(--line-2)}
.customers span.logo img{max-height:60px;max-width:132px}

/* Dòng thời gian, bước dịch vụ, bài viết */
.timeline{border-left-color:#CFE6D4}
.timeline li:before{background:var(--green);box-shadow:0 0 0 4px var(--green-pale)}
.step{border-radius:var(--radius)}
.step:before{background:var(--green-deep);box-shadow:0 6px 12px -6px rgba(14,61,30,.6)}
.article p{font-size:1.06rem;line-height:1.75}
.article h2{font-size:1.5rem}
.article blockquote{border-radius:0 12px 12px 0;border-left-color:var(--green-light)}
.callout{border-radius:12px}
.photo-ph{border-radius:var(--radius)}
img.photo{border-radius:12px}
.certfig{border-radius:var(--radius)}
.certfig img{border-radius:10px}
.viewonly .vo-tag{border-radius:6px;background:rgba(14,61,30,.88)}

/* Chân trang */
footer.site{background:radial-gradient(900px 400px at 100% 0%,rgba(139,208,37,.12),transparent 60%),linear-gradient(180deg,#173F27,#12321E);color:#BCD0C3;padding:64px 0 28px;margin-top:64px;position:relative}
footer.site:before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(166,226,58,.5),transparent)}
footer.site h4{color:#fff;letter-spacing:.06em;text-transform:uppercase;font-size:.78rem;font-weight:700}
footer.site a{color:#DCEBDF}
footer.site a:hover{color:var(--lime)}
footer .logo-w{border-radius:10px;padding:10px 14px}
footer .tagline{color:var(--lime)}
footer .legal{color:#8FA897;border-top-color:rgba(255,255,255,.12)}
footer .legal .muted{color:#8FA897}
footer .social a.soc{box-shadow:0 8px 18px -10px rgba(0,0,0,.6)}
.zalo-mini{display:flex;gap:12px;align-items:center;margin-top:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:10px}
.zalo-mini img{width:84px;height:84px;border-radius:8px;background:#fff;padding:4px;flex:none}
.zalo-mini p{margin:0;line-height:1.45}
.zalo-card{display:flex;gap:18px;align-items:center}
.zalo-card img{width:132px;height:132px;flex:none;border-radius:10px;border:1px solid var(--line);padding:4px}
.zalo-card h3{margin-bottom:6px}.zalo-card p{margin-bottom:10px}
@media(max-width:480px){.zalo-card{flex-direction:column;align-items:flex-start}}

/* Dock liên hệ nhanh */
.dock a{box-shadow:0 10px 24px -8px rgba(0,0,0,.45)}
.dock a b{background:var(--green-deep);border-radius:8px}

/* Điện thoại */
@media(max-width:640px){
  body{font-size:16px}
  h1{font-size:1.9rem}h2{font-size:1.6rem}
  .section{padding:48px 0}
  .page-head{padding:30px 0 28px}.page-head h1{font-size:1.85rem}
  .stat b{font-size:2.1rem}
  .switch,.cta-band{padding:26px 22px;border-radius:16px}
  .cta-band h2{font-size:1.45rem}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ===== Kết quả thực tế (case study) ===== */
.case-card img.photo{aspect-ratio:16/10}
.case-card h3{font-size:1.08rem;line-height:1.35}
.case-card .card-body p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:0 1px 2px rgba(16,32,26,.03)}
.kpi b{display:block;font-family:var(--font-head);font-size:1.7rem;font-weight:800;color:var(--green-dark);letter-spacing:-.02em;line-height:1.1}
.kpi b:after{content:"";display:block;width:28px;height:3px;border-radius:3px;background:var(--green-light);margin:8px 0 8px}
.kpi span{font-size:.86rem;color:var(--muted);line-height:1.45;display:block}
.case-body{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}
.case-body>*{min-width:0}
.case-body h2{font-size:1.5rem;margin-top:1.4em}
.case-body p{font-size:1.04rem;line-height:1.7}
.case-hero{aspect-ratio:16/9;margin-bottom:8px;box-shadow:var(--shadow)}
.case-body aside .pd-side{position:sticky;top:94px}
ul.plain{list-style:none;margin:0;padding:0}ul.plain li{margin-bottom:8px;line-height:1.4}
.table-wrap{overflow-x:auto;margin:10px 0 6px;border:1px solid var(--line);border-radius:12px}
.case-table{font-size:.86rem;min-width:760px}
.case-table caption{caption-side:bottom;text-align:left;font-size:.8rem;color:var(--muted);padding:10px 12px;line-height:1.4}
.case-table thead th{background:var(--green-tint);color:var(--green-dark);font-weight:700;width:auto;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase}
.case-table tbody th{width:auto;min-width:230px;color:var(--ink);font-weight:600;white-space:normal}
.case-table td{white-space:nowrap}.case-table td:last-child{white-space:normal;min-width:220px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery figure.wide{grid-column:span 2}.gallery figure.wide img.photo{aspect-ratio:8/3}
.gallery img.photo{aspect-ratio:4/3;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.gallery figure:hover img.photo{transform:translateY(-3px);box-shadow:var(--shadow)}
.callout.case-link a{font-weight:700}
@media(max-width:1024px){.kpis{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.case-body{grid-template-columns:1fr}.case-body aside .pd-side{position:static}.gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.kpis{grid-template-columns:1fr 1fr;gap:10px}.kpi b{font-size:1.4rem}.gallery{grid-template-columns:1fr}.gallery figure.wide{grid-column:auto}.gallery figure.wide img.photo{aspect-ratio:2/1}}
.map-wrap{aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--bg)}
.map-wrap iframe{width:100%;height:100%;border:0;display:block}

/* ===== Logo Hợp Tiến (SVG vector, sắc nét mọi kích cỡ) ===== */
header.site .container{height:84px}
.logo{display:flex;align-items:center;flex:none}
.logo img{height:56px;width:auto;display:block}
nav.main{top:84px}
.anchor-nav{top:84px}
.filters{top:100px}
.case-body aside .pd-side{top:100px}
footer .logo-w{padding:12px 16px;border-radius:12px}
footer .logo-w img{height:48px;width:auto}
@media(max-width:1024px){nav.main{top:84px}}
@media(max-width:640px){header.site .container{height:68px}.logo img{height:42px}nav.main{top:68px}.anchor-nav{top:68px}}

/* Thanh neo trang Về chúng tôi: dàn đều, cân đối */
.anchor-nav ul{justify-content:center;gap:0}
.anchor-nav li{flex:1 1 0;text-align:center;min-width:0}
.anchor-nav a{padding:14px 10px;font-size:.92rem;border-bottom-width:3px}
.anchor-nav a.on{color:var(--green);border-color:var(--green-light)}
@media(max-width:900px){.anchor-nav ul{justify-content:flex-start}.anchor-nav li{flex:0 0 auto}.anchor-nav a{padding:12px 14px}}
[id]{scroll-margin-top:150px}

/* Mục Trang chủ dạng biểu tượng ngôi nhà trên menu (điện thoại hiện kèm chữ) */
nav.main a.home{display:inline-flex;align-items:center;gap:8px}
nav.main a.home svg{width:21px;height:21px;flex:none}
@media(min-width:1025px){nav.main a.home span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}nav.main a.home{padding-left:11px;padding-right:11px}nav.main a.home.active:after{left:9px;right:9px}}
@media(max-width:1024px){nav.main a.home{display:flex}}

/* =====================================================================
   HEADER THEO TỪNG CỠ MÀN HÌNH (v49) – một khối duy nhất, thay cho các vá trước
   Nguyên tắc: logo, cỡ chữ menu, khoảng cách và số nút thu dần theo bề rộng;
   mọi cỡ đều đo thử để không tràn.
   ===================================================================== */
header.site .container{height:84px;gap:16px;max-width:1380px}
.logo img{height:56px}
nav.main ul{gap:2px}
nav.main a{padding:10px 11px;font-size:.94rem}
.header-cta{gap:10px}
.header-cta .btn-sm{padding:9px 15px;font-size:.86rem;white-space:nowrap}
/* Màn hình bàn / laptop lớn ≥1400 */
/* Laptop 1241–1399 */
@media(min-width:1241px) and (max-width:1399px){.logo img{height:52px}nav.main a{padding:10px 9px;font-size:.9rem}header.site .container{gap:12px}}
/* Laptop nhỏ 1121–1240 */
@media(min-width:1121px) and (max-width:1240px){.logo img{height:46px}nav.main a{padding:10px 7px;font-size:.86rem}header.site .container{gap:10px}.header-cta{gap:8px}.header-cta .btn-sm{padding:8px 12px;font-size:.82rem}}
/* Laptop 13" ở tỉ lệ phóng lớn 1025–1120 */
@media(min-width:1025px) and (max-width:1120px){.logo img{height:42px}nav.main a{padding:10px 5px;font-size:.83rem}header.site .container{gap:8px}.header-cta{gap:6px}.header-cta .btn-sm{padding:8px 11px;font-size:.8rem}.header-cta .btn-outline{display:none}}
/* Máy tính bảng 641–1024: menu gập, giữ 2 nút */
@media(min-width:641px) and (max-width:1024px){header.site .container{height:76px;gap:12px}.logo img{height:48px}.header-cta .btn{display:inline-flex}.header-cta .btn-sm{padding:8px 13px;font-size:.84rem}nav.main{top:76px}.anchor-nav{top:76px}.filters{top:92px}}
/* Điện thoại ≤640: logo + nút menu; nút gọi/báo giá nằm ở thanh dưới màn hình */
@media(max-width:640px){header.site .container{height:66px;gap:8px}.logo img{height:40px}.header-cta .btn{display:none}nav.main{top:66px}.anchor-nav{top:66px}}
@media(max-width:360px){.logo img{height:36px}}
/* Dải con số: 4 ô co theo bề rộng; tablet 641–900 xếp 2×2 */
.stats .container{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{min-width:0;padding:26px 10px}
.stat b{font-size:clamp(1.7rem,3.2vw,2.8rem);white-space:nowrap}
.stat span{font-size:.86rem}
@media(min-width:641px) and (max-width:900px){.stats .container{grid-template-columns:repeat(2,minmax(0,1fr))}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:640px){.stats .container{grid-template-columns:repeat(2,minmax(0,1fr))}.stat b{font-size:clamp(1.5rem,7vw,2.1rem);white-space:normal}.btn{max-width:100%}}
/* Nút dài trong nội dung được xuống dòng ở màn hình hẹp; nút trên thanh menu vẫn một dòng */
@media(max-width:900px){.section .btn,.page-head .btn{white-space:normal;text-align:center;max-width:100%}}
/* Bài Kiến thức: bảng và danh sách trong thân bài */
.article ul{padding-left:22px;margin:0 0 1.1em}.article li{margin-bottom:8px;line-height:1.6}
.article .table-wrap{margin:14px 0 18px}
.article .case-table{min-width:640px;font-size:.9rem}.article .case-table td{white-space:normal}
.article .callout a{font-weight:700}

/* ===== BẢNG SẢN PHẨM HÃNG KHÁC THƯỜNG ĐƯỢC HỎI CHUYỂN ĐỔI (v50) ===== */
.swl-bar{display:flex;gap:10px;margin:0 0 14px}
.swl-bar input,.swl-bar select{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:.95rem;background:#fff}
.swl-bar input{flex:1;min-width:0}.swl-bar select{flex:none;max-width:46%}
table.swl th{width:auto}table.swl thead th{color:var(--muted);font-weight:600;white-space:nowrap}
table.swl td{font-size:.92rem}table.swl td:last-child{white-space:nowrap;text-align:right}
table.swl tr.swl-group th{background:var(--green-pale);color:var(--green-dark,#1F5A36);font-weight:800;font-size:.85rem;letter-spacing:.02em;text-transform:uppercase;padding-top:14px}
.swl-note{margin-top:12px}
.sw-hint{margin:-6px 0 14px;font-size:.9rem}.sw-hint:empty{display:none}.sw-hint ul.plain{margin:6px 0 4px}.sw-hint li{padding:3px 0}
@media(max-width:700px){.swl-bar{flex-direction:column}.swl-bar select{max-width:none}
  table.swl thead{display:none}table.swl,table.swl tbody{display:block;width:100%}
  table.swl tr{display:block;padding:10px 0;border-bottom:1px solid var(--line)}table.swl tr.swl-group{padding:0;border:0}table.swl tr.swl-group th{display:block;border:0}
  table.swl td{display:block;border:0;padding:2px 0;font-size:.92rem}
  table.swl td:first-child{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
  table.swl td:nth-child(3){color:var(--muted)}table.swl td:nth-child(4)::before{content:"Nhóm Hợp Tiến: ";color:var(--muted)}
  table.swl td:last-child{white-space:normal;text-align:left;padding-top:8px}}

/* ===== TRANG CHUYỂN ĐỔI: trả lời ngắn, bảng thông tin nhanh, bài liên quan (v51) ===== */
.answer{background:var(--green-pale);border-left:4px solid var(--green);border-radius:0 12px 12px 0;padding:16px 20px;margin:0 0 22px}
.answer h2{margin:0 0 8px;font-size:1.15rem}.answer p{margin:0;font-size:1.02rem;line-height:1.6}
table.facts th{width:38%}table.facts td{font-weight:500}
table.facts td,table.facts th{overflow-wrap:anywhere;word-break:break-word}
@media(max-width:640px){table.facts th{width:36%}}
table.spec.cols th,table.spec.cols td{width:auto;min-width:150px;overflow-wrap:normal;word-break:normal;font-weight:400}
table.spec.cols thead th{color:var(--ink,#10201A);font-weight:700;background:var(--green-pale,#EAF4EC)}
table.spec.cols td:first-child{min-width:130px}
table.spec.cols tbody th{font-weight:600;color:var(--ink,#10201A)}
.related-list{list-style:none;padding:0;margin:0}.related-list li{padding:8px 0;border-bottom:1px solid var(--line)}.related-list li a{font-weight:600}

/* ===== KHỐI GIÁ · CHÍNH HÃNG · GIAO HÀNG trên trang sản phẩm (v52) ===== */
.buybox{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0 0 6px}
.buybox>div{background:var(--green-pale);border-radius:10px;padding:12px 14px;font-size:.92rem;line-height:1.5}
.buybox a{font-weight:700;white-space:nowrap}
@media(max-width:900px){.buybox{grid-template-columns:1fr}}

/* ===== TRANG THEO MÁY, MÁY TÍNH CHI PHÍ (v52) ===== */
ol.proc{padding-left:22px}ol.proc li{margin:0 0 10px;line-height:1.55}
.calc .calc-col h4{margin:6px 0 8px;font-size:.95rem;color:var(--green-dark,#1F5A36)}
.calc .calc-out{margin-top:10px}.calc .kpi b{font-size:1.25rem}

/* ===== DẢI SỰ KIỆN TRÊN TRANG CHỦ (v54) – gỡ sau khi sự kiện kết thúc ===== */
.event-strip{background:#D0342C;color:#fff}
.event-strip .container{display:flex;align-items:center;gap:14px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.event-strip .es-tag{font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;background:rgba(255,255,255,.18);padding:4px 8px;border-radius:6px}
.event-strip .es-text{flex:1;min-width:240px;font-size:.95rem;line-height:1.4}
.event-strip .btn-white{background:#fff;color:#D0342C;border-color:#fff;white-space:nowrap}
@media(max-width:640px){.event-strip .container{gap:8px}.event-strip .es-text{font-size:.9rem}}

/* ===== TRANG NHÓM THEO ỨNG DỤNG (v55) ===== */
.group-item{margin-top:28px;padding-top:18px;border-top:1px solid var(--line,#e5e7eb)}
.group-item h2{margin-bottom:4px}
.toc{columns:2;gap:24px;margin:8px 0 6px;padding-left:18px}
.toc li{break-inside:avoid;margin:2px 0}
@media(max-width:640px){.toc{columns:1}}
.src-line{margin-top:8px;overflow-wrap:anywhere}

/* V64: thẻ dòng sản phẩm Hợp Tiến ở cột bên trang chuyển đổi */
.sw-lines{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.sw-line{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:10px;color:inherit;text-decoration:none;background:#fff}
a.sw-line:hover{border-color:var(--green);box-shadow:0 2px 8px rgba(16,32,26,.08)}
.sw-img{flex:0 0 64px;width:64px;height:48px;border-radius:6px;background:#F5F7F5;overflow:hidden;display:flex;align-items:center;justify-content:center}
.sw-img img{width:100%;height:100%;object-fit:cover}
.sw-img-empty{background:repeating-linear-gradient(45deg,#E9EFEA 0 6px,#F5F7F5 6px 12px)}

/* V66 – form dùng chung: ô bẫy spam, gợi ý sản phẩm, dòng tài liệu, nút tải, lỗi gửi */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.field.has-dd{position:relative}
.sw-dd{position:absolute;left:0;right:0;top:100%;z-index:30;background:#fff;border:1px solid #DCE5DE;border-radius:8px;box-shadow:0 10px 28px rgba(0,0,0,.14);max-height:300px;overflow:auto;margin-top:4px;text-align:left}
.sw-dd-head{font-size:.72rem;color:var(--muted);padding:8px 12px 4px;text-transform:uppercase;letter-spacing:.04em}
.sw-dd-item{padding:8px 12px;cursor:pointer;display:flex;flex-direction:column;gap:2px;font-size:.92rem;line-height:1.3}
.sw-dd-item span{color:var(--muted);font-size:.8rem;font-weight:400}
.sw-dd-item.on,.sw-dd-item:hover{background:#EAF4EC}
.doc-line{padding:10px 12px;background:#F2F5F3;border-radius:8px;font-size:.92rem}
.dl-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.form-err{margin:10px 0}
form[data-kind] .sw-hint{margin-top:-6px}
/* V66 – cột bên dính (sticky): chỉ hoạt động khi ô lưới được kéo dài bằng hàng (các lưới hai cột đang đặt align-items:start nên form chưa từng dính).
   Ô đặt chỗ data-render="form" không tạo khung riêng (display:contents). Form dính chỉ khi nó là phần tử cuối trong cột (có thẻ khác phía dưới thì để tĩnh, tránh che). Trình duyệt cũ không hiểu :has thì giữ như cũ. */
[data-render="form"]{display:contents}
.grid:has([style*="sticky"]){align-items:stretch !important}
.grid > div:has(> [style*="sticky"] ~ *) > [style*="sticky"],
.grid > div:has(> [data-render="form"] ~ *) > [data-render="form"] > [style*="sticky"]{position:static !important}

/* ===== V80–V81 (07/10/2026): logo khách hàng và logo hãng gọn trên điện thoại; dòng ghi chú chứng nhận; gợi ý "không có trong danh sách" ===== */
.cert-note{margin:14px 0 0}
.customers span.logo img{height:auto}
@media(max-width:1024px){
  .customers{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
  .customers span.logo,.customers span.logo-ph{min-width:0;width:auto;height:64px;padding:6px 8px;border-radius:10px}
  .customers span.logo img{max-height:42px;max-width:100%}
  .brands{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
  .brand-badge.has-logo{min-width:0;width:auto;height:88px;padding:8px 10px;gap:4px}
  .brand-badge.has-logo img{max-height:40px;max-width:100%}
  .brand-badge small{font-size:.68rem}
}
@media(max-width:640px){
  .customers{grid-template-columns:repeat(3,minmax(0,1fr))}
  .brands{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:340px){.customers{grid-template-columns:repeat(2,minmax(0,1fr))}}
.swbar-in{position:relative}
.sw-wrap{flex:1;min-width:0;display:flex}
.sw-wrap input{flex:1;min-width:0;padding:9px 10px;border:1px solid var(--line);border-radius:6px;font:inherit;font-size:.9rem}
.swbar-in .sw-dd{top:100%;left:0;right:0}
.sw-dd-other{padding:9px 12px;border-top:1px solid #E3EAE5;font-size:.82rem;color:var(--muted);background:#F7FAF8;cursor:pointer;line-height:1.35}

/* V85 D6: nhãn "Ảnh minh hoạ" trên thẻ sản phẩm dùng ảnh đại diện hãng */
.pimg{position:relative}.pimg .img-note{position:absolute;right:6px;bottom:6px;font-size:11px;line-height:1;padding:4px 6px;border-radius:4px;background:rgba(255,255,255,.85);color:#5a645f;border:1px solid #dde3df}

/* V85: khối 3 ô số (kpis k3) – xuống 2 cột trên màn hình hẹp, số dài được ngắt dòng */
.kpis.k3{grid-template-columns:repeat(3,1fr)}.kpi b{overflow-wrap:anywhere}
@media(max-width:1024px){.kpis.k3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.kpis.k3{grid-template-columns:1fr 1fr}}

/* V85 F4: ô tuỳ chọn nhận tin hội thảo (không bắt buộc), cùng kiểu với ô đồng ý */
.optin{display:flex;gap:8px;align-items:flex-start;font-size:.8rem;color:var(--muted);margin:4px 0 10px;line-height:1.4}.optin input{margin-top:3px;flex:none;width:auto;height:auto;padding:0}.optin span{min-width:0;flex:1 1 0;overflow-wrap:anywhere}