/* =========================================================
   QUYẾT THẮNG - LDP BÀN THAO TÁC CÔNG NGHIỆP
   FINAL CLEAN CSS
   Font: Inter
   ========================================================= */

/* ---------- TOKENS ---------- */
:root{
  --red:#d11212;
  --red-dark:#ae0e0e;
  --blue:#194aaa;
  --ink:#0f172a;
  --text:#475569;
  --muted:#64748b;
  --line:#e2e8f0;
  --soft:#f5f7fa;
  --dark:#11151b;
  --dark-card:#1a2028;
  --white:#fff;
  --max:1240px;
  --radius:14px;
  --shadow:0 14px 36px rgba(15,23,42,.08);
  --font:"Inter",Arial,Helvetica,sans-serif;
}

/* ---------- RESET ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
button{color:inherit}
p{margin:0 0 1em}
.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}

/* ---------- TYPOGRAPHY ---------- */
h1,h2,h3,h4,h5,h6{
  margin-top:0;
  font-family:var(--font);
  font-weight:750;
  letter-spacing:-.025em;
}
.section-kicker,.eyebrow{
  display:block;
  color:var(--red);
  font-size:12px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:.14em;
}
.section-head{
  max-width:820px;
  margin:0 auto 38px;
  text-align:center;
}
.section-head h2{
  margin:8px 0 12px;
  font-size:clamp(32px,3vw,42px);
  line-height:1.12;
  color:var(--ink);
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  line-height:1.7;
}
#san-pham .section-kicker{
  width:max-content;
  max-width:100%;
  margin:0 auto 13px;
  padding:9px 19px;
  color:#fff;
  background:linear-gradient(135deg,#ed1c24 0%,#cf1118 100%);
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;
  box-shadow:0 7px 18px rgba(209,18,18,.2);
  font-size:12px;
  letter-spacing:.13em;
  text-align:center;
}
.section-head.light h2{color:#fff}
.section-head.light p{color:#aeb8c6}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 20px;
  border:1px solid transparent;
  border-radius:6px;
  font-size:14px;
  font-weight:800;
  letter-spacing:.01em;
  cursor:pointer;
  transition:.2s ease;
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark)}
.btn-dark{background:#111;color:#fff}
.btn-ghost{
  color:#fff;
  background:rgba(0,0,0,.18);
  border-color:rgba(255,255,255,.55);
}
.btn-outline{background:#fff;color:#111;border-color:#cfd5de}
.btn-lg{min-height:52px;padding-inline:26px}
.btn-block{width:100%}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:linear-gradient(90deg,#0d2b59 0%,#123b77 55%,#194aaa 100%);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.16);
  box-shadow:0 5px 18px rgba(9,35,75,.18);
}
.header-inner{
  min-height:82px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  flex:0 0 auto;
}
.brand img{width:224px;height:60px;object-fit:contain;object-position:left center}
.desktop-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:28px;
}
.desktop-nav a{
  font-size:13px;
  font-weight:800;
  letter-spacing:.01em;
}
.desktop-nav a:hover{color:#ff4a4f}
.header-actions{
  display:flex;
  align-items:center;
  gap:15px;
}
.phone{
  font-size:15px;
  font-weight:800;
  white-space:nowrap;
}
.menu-btn{
  display:none;
  margin-left:auto;
  padding:10px 14px;
  border:1px solid rgba(255,255,255,.42);
  border-radius:7px;
  background:rgba(255,255,255,.1);
  color:#fff;
  font-size:13px;
  font-weight:800;
}
.mobile-menu{
  padding:10px 20px 18px;
  background:#102f61;
  border-top:1px solid rgba(255,255,255,.14);
}
.mobile-menu a{
  display:block;
  padding:11px 0;
  color:#fff;
  font-size:14px;
  font-weight:700;
  border-bottom:1px solid rgba(255,255,255,.12);
}

/* =========================================================
   HERO - PC + MOBILE
   ========================================================= */

/* ---------- DESKTOP / TABLET ---------- */
.hero{
  position:relative;
  min-height:600px;
  display:flex;
  align-items:center;
  color:#fff;

  background:
    linear-gradient(
      90deg,
      rgba(7,25,52,.90) 0%,
      rgba(10,34,69,.74) 34%,
      rgba(13,43,82,.43) 58%,
      rgba(15,49,91,.10) 100%
    ),
    url("assets/products/hero-ban-thao-tac.png")
    center center / cover no-repeat;
}

.hero-content{
  position:relative;
  z-index:2;
  width:100%;
  max-width:var(--max);
  padding:52px 0 58px;
}

.hero .eyebrow{
  margin-bottom:12px;
  color:#ff4a50;
  font-size:12px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:.14em;
}

.hero h1{
  width:100%;
  max-width:860px;
  margin:0 0 24px;
  color:#fff;
  font-size:clamp(44px,3.25vw,58px);
  line-height:1.1;
  font-weight:800;
  letter-spacing:-.035em;
}

.hero h1 span{
  display:block;
  width:max-content;
  max-width:100%;
  color:#fff;
  white-space:nowrap;
}
.hero-title-main b{display:inline;font:inherit;color:inherit}
.hero h1>span+span{margin-top:8px}

.hero-sub{
  max-width:690px;
  margin:0;
  color:#f5f8fc;
  font-size:16px;
  line-height:1.62;
  font-weight:400;
}

.hero-sub strong{
  color:#fff;
  font-weight:700;
}

.hero-points{
  max-width:560px;
  margin:18px 0 20px;
  display:grid;
  grid-template-columns:repeat(2,minmax(220px,1fr));
  gap:8px 22px;
}

.hero-points span{
  color:#fff;
  font-size:14px;
  line-height:1.4;
  font-weight:650;
}
.hero-points i{width:20px;color:#ff3b40;text-align:center}

.hero-cta{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}

.hero-cta .btn{
  min-height:50px;
  padding-inline:25px;
  font-size:14px;
}

/* ---------- MOBILE ---------- */
@media(max-width:768px){

  .hero{
    min-height:590px;
    align-items:flex-start;

    background:
      linear-gradient(
        180deg,
        rgba(7,25,52,.88) 0%,
        rgba(8,29,60,.77) 48%,
        rgba(9,33,67,.50) 76%,
        rgba(9,31,61,.68) 100%
      ),
      url("assets/products/hero-ban-thao-tac.png")
      66% center / cover no-repeat;
  }

  .hero-content{
    width:100%;
    max-width:none;
    padding:35px 0 38px;
  }

  .hero .eyebrow{
    margin-bottom:11px;
    font-size:11px;
    line-height:1.35;
    letter-spacing:.11em;
  }

  .hero h1{
    width:100%;
    max-width:100%;
    margin:0 0 20px;
    color:#fff;
    font-size:clamp(27px,7.7vw,32px);
    line-height:1.08;
    font-weight:800;
    letter-spacing:-.035em;
  }
  .hero h1>span+span{margin-top:5px}

  .hero h1 span{
    display:block;
    width:100%;
    max-width:100%;
    color:#fff;
    white-space:normal;
    overflow-wrap:normal;
  }
  .hero-title-main b{display:block}

  .hero-sub{
    max-width:100%;
    margin:0;
    font-size:14px;
    line-height:1.58;
  }

  .hero-points{
    max-width:100%;
    margin:18px 0 22px;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px 10px;
  }

  .hero-points span{
    font-size:12.5px;
    line-height:1.35;
  }

  .hero-cta{
    width:100%;
    display:grid;
    grid-template-columns:1fr;
    gap:10px;
  }

  .hero-cta .btn{
    width:100%;
    min-height:48px;
  }
}
/* ---------- STATS ---------- */
.stats{
  background:linear-gradient(180deg,#f8fbff 0%,#eef4fc 100%);
  border-top:1px solid #dce7f6;
  border-bottom:1px solid #d6e2f1;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  padding:26px 0;
}
.stats-grid div{
  position:relative;
  padding:2px 14px;
  text-align:center;
  border-right:1px solid #cfdaea;
}
.stats-grid div:last-child{border-right:0}
.stats-grid b{
  display:block;
  color:var(--blue);
  font-size:32px;
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.035em;
}
.stats-grid span{
  display:block;
  margin-top:7px;
  color:#586b84;
  font-size:13px;
  font-weight:500;
}

/* ---------- GENERIC SECTIONS ---------- */
.section{padding:76px 0}
.section-soft{background:var(--soft)}
#featured{
  background:linear-gradient(180deg,#f5f8fc 0%,#edf3fa 100%);
  border-top:1px solid #e0e8f3;
  border-bottom:1px solid #dce6f2;
}
#featured .section-kicker{
  width:max-content;
  max-width:100%;
  margin:0 auto 13px;
  padding:9px 19px;
  color:#fff;
  background:linear-gradient(135deg,#194aaa 0%,#123675 100%);
  border:1px solid rgba(255,255,255,.25);
  border-radius:999px;
  box-shadow:0 7px 18px rgba(25,74,170,.2);
  font-size:12px;
  letter-spacing:.13em;
  text-align:center;
}
.section-dark{background:var(--dark);color:#fff}
.section-dark .section-head h2,
.section-dark h2,
.section-dark h3,
.section-dark b{color:#fff}
.section-dark .section-head p{color:#aeb8c6}

/* ---------- CATEGORY ---------- */
.category-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.category-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid #d9e4f2;
  border-radius:var(--radius);
  box-shadow:0 10px 28px rgba(25,74,170,.07);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.category-card:hover{transform:translateY(-5px);border-color:#b8ccea;box-shadow:0 16px 34px rgba(25,74,170,.13)}
.category-card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:contain;
  padding:12px;
  background:linear-gradient(180deg,#f8fbff 0%,#eef4fb 100%);
}
.category-card>div{flex:1;padding:21px 20px 22px;display:flex;flex-direction:column}
.category-card h3{
  margin:0 0 8px;
  color:var(--ink);
  font-size:19px;
  line-height:1.3;
}
.category-card p{
  min-height:66px;
  color:var(--text);
  font-size:14px;
  line-height:1.65;
}
.category-card a{
  margin-top:auto;
  color:var(--red);
  font-size:13px;
  font-weight:800;
}
.icon-card{display:flex;flex-direction:column}
.big-icon{
  height:210px;
  display:grid;
  place-items:center;
  background:#f5f7fb;
  font-size:52px;
}

/* ---------- PRODUCT CARDS ---------- */
.product-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.product-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid #d8e3f1;
  border-radius:var(--radius);
  box-shadow:0 8px 24px rgba(25,74,170,.055);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.product-card:hover{
  transform:translateY(-5px);
  border-color:#b8cbe8;
  box-shadow:0 16px 34px rgba(25,74,170,.13);
}
.product-card>img{
  width:100%;
  height:300px;
  object-fit:contain;
  padding:14px;
  background:linear-gradient(180deg,#fff 0%,#f7faff 100%);
}
.product-body{flex:1;padding:19px;display:flex;flex-direction:column}
.tag{
  display:inline-block;
  padding:5px 9px;
  border-radius:999px;
  background:#eef3ff;
  color:var(--blue);
  font-size:12px;
  line-height:1.3;
  font-weight:800;
}
.product-body h3{
  margin:10px 0 7px;
  color:var(--ink);
  font-size:23px;
  line-height:1.2;
}
.product-body p{
  min-height:72px;
  color:var(--text);
  font-size:15px;
  line-height:1.65;
}
.product-actions{
  margin-top:auto;
  padding-top:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  border-top:1px solid var(--line);
}
.product-actions a,.btn-link{
  min-height:42px;
  padding:10px 15px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid #b9c9e2;
  border-radius:6px;
  background:#fff;
  color:var(--blue);
  font-size:14px;
  font-weight:800;
  cursor:pointer;
  transition:.2s ease;
}
.product-actions .btn-link:hover{background:#eef3fc;border-color:var(--blue)}
.product-actions a{background:var(--red);border-color:var(--red);color:#fff}
.product-actions a:hover{background:var(--red-dark);border-color:var(--red-dark)}

/* ---------- CONFIG / OPTIONS ---------- */
.split{
  display:grid;
  grid-template-columns:1.45fr .55fr;
  gap:42px;
  align-items:start;
}
.split h2{
  margin:8px 0 10px;
  color:var(--ink);
  font-size:clamp(32px,3vw,40px);
  line-height:1.14;
}
#tuy-chon .section-kicker{
  width:max-content;
  max-width:100%;
  margin-bottom:13px;
  padding:8px 15px;
  color:#fff;
  background:linear-gradient(135deg,#ed1c24 0%,#cf1118 100%);
  border-radius:999px;
  box-shadow:0 7px 18px rgba(209,18,18,.18);
  font-size:11px;
  line-height:1.3;
  letter-spacing:.11em;
  white-space:nowrap;
}
.lead{
  color:var(--muted);
  font-size:16px;
  line-height:1.7;
}
.option-grid{
  margin-top:26px;
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
}
.option-grid>div{
  min-height:66px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--ink);
  font-size:15px;
  line-height:1.45;
  font-weight:500;
}
.option-grid>div b{
  flex:0 0 36px;
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:8px;
  background:#edf2ff;
  color:var(--blue);
  font-weight:800;
}
.config-grid{align-items:start}
.config-item{
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.config-item[open]{border-color:#9eb7df;box-shadow:0 8px 22px rgba(25,74,170,.09)}
.config-item.is-filled{border-color:#77a0df;background:#f9fbff}
.config-item summary{
  min-height:64px;
  padding:13px 14px;
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
}
.config-item summary::-webkit-details-marker{display:none}
.config-item summary b{
  flex:0 0 36px;
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:8px;
  background:#edf2ff;
  color:var(--blue);
  font-weight:800;
}
.config-item summary span{flex:1}
.config-item summary i{
  color:var(--blue);
  font-size:21px;
  font-style:normal;
  transition:transform .2s ease;
}
.config-item[open] summary i{transform:rotate(45deg)}
.config-item.is-filled summary i::before{content:'✓';font-size:15px}
.config-item.is-filled summary i{font-size:0;transform:none;color:#178447}
.config-fields{
  padding:4px 14px 16px;
  display:grid;
  grid-template-columns:1fr;
  gap:10px;
  border-top:1px solid #edf1f7;
}
.dimensions-fields{grid-template-columns:repeat(3,1fr)}
.config-fields-2{grid-template-columns:1fr 1fr}
.config-fields label{
  padding-top:10px;
  color:#394b64;
  font-size:11px;
  font-weight:700;
}
.config-fields input:not([type="checkbox"]),.config-fields select{
  width:100%;
  min-height:42px;
  margin-top:5px;
  padding:8px 10px;
  border:1px solid #cfd9e8;
  border-radius:7px;
  background:#fff;
  color:var(--ink);
  font:inherit;
  font-size:13px;
  outline:none;
}
.config-fields input:focus,.config-fields select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(25,74,170,.1)}
.check-fields{grid-template-columns:repeat(3,1fr);padding-top:12px}
.check-fields label{
  min-height:42px;
  padding:9px;
  display:flex;
  align-items:center;
  gap:7px;
  background:#f4f7fc;
  border-radius:7px;
  font-size:12px;
  cursor:pointer;
}
.check-fields input{accent-color:var(--blue)}
.config-preview{
  margin:18px 0 8px;
  padding:14px;
  background:#1c1c1c;
  border:1px solid #333;
  border-radius:9px;
}
.config-preview b{display:block;margin-bottom:6px;color:#fff;font-size:13px}
.config-preview span{display:block;color:#bfc9d7;font-size:12px;line-height:1.55;white-space:pre-line}
.quote-box{
  position:sticky;
  top:105px;
  padding:28px;
  border-radius:var(--radius);
  background:#111;
  color:#fff;
}
.quote-box h3{
  margin:0 0 10px;
  color:#fff;
  font-size:19px;
  line-height:1.25;
  letter-spacing:-.025em;
  white-space:nowrap;
}
.quote-box p{
  color:#dbe4f0;
  font-size:15px;
  line-height:1.6;
}
.quote-box .btn{margin-top:10px}

/* ---------- PROCESS ---------- */
#nang-luc{padding:70px 0;background:linear-gradient(135deg,#10151c 0%,#161e28 100%)}
#nang-luc .section-head{margin-bottom:32px}
#nang-luc .section-head .section-kicker,
#du-an .section-head .section-kicker,
.trust-strip .section-head .section-kicker{
  width:max-content;
  max-width:100%;
  margin:0 auto 16px;
  padding:8px 16px;
  color:#fff;
  background:linear-gradient(135deg,#ed1c24 0%,#cf1118 100%);
  border-radius:999px;
  box-shadow:0 7px 18px rgba(209,18,18,.18);
  font-size:10px;
  line-height:1.3;
  letter-spacing:.12em;
  text-align:center;
  white-space:nowrap;
}
#nang-luc .section-head h2,
#du-an .section-head h2,
.trust-strip .section-head h2{margin-top:0}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.process-grid div{
  position:relative;
  min-height:158px;
  padding:22px;
  background:var(--dark-card);
  border:1px solid #2a323d;
  border-radius:12px;
  transition:transform .2s ease,border-color .2s ease;
}
.process-grid div:hover{transform:translateY(-4px);border-color:#44566f}
.process-grid span{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  color:#fff;
  background:var(--red);
  border-radius:50%;
  font-size:11px;
  font-weight:800;
}
.process-grid b{
  display:block;
  margin:14px 0 7px;
  color:#fff;
  font-size:18px;
  line-height:1.3;
}
.process-grid small{
  display:block;
  color:#b7c0cd;
  font-size:13px;
  line-height:1.55;
}
.process-cta{
  margin-top:28px;
  display:flex;
  justify-content:center;
  gap:10px;
}

/* ---------- APPLICATION / TRUST ---------- */
#du-an{background:#f7f9fc}
.application-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.application-grid div{
  padding:26px 22px;
  text-align:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  box-shadow:0 7px 22px rgba(25,74,170,.05);
  transition:transform .2s ease,border-color .2s ease;
}
.application-grid div:hover{transform:translateY(-4px);border-color:#b8cae5}
.application-grid i{display:block;margin-bottom:12px;color:var(--blue);font-size:34px}
.application-grid b{
  display:block;
  margin:8px 0 3px;
  color:var(--ink);
  font-size:16px;
}
.application-grid span{
  display:block;
  color:var(--muted);
  font-size:13px;
  line-height:1.55;
}
.application-note{
  margin:24px 0 0;
  color:var(--muted);
  text-align:center;
  font-size:14px;
}
.application-note a{color:var(--red);font-weight:800}
.trust-strip{padding:54px 0 62px}
.trust-strip .section-head{margin-bottom:26px}
.trust-strip .section-head h2{font-size:clamp(29px,2.5vw,37px)}
.logo-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:12px;
}
.logo-grid div{
  height:72px;
  display:grid;
  place-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:12px;
}
.logo-grid img{width:100%;height:48px;object-fit:contain;filter:grayscale(100%);opacity:.78;transition:.2s ease}
.logo-grid div:hover img{filter:none;opacity:1}

/* ---------- QUOTE / FORM ---------- */
.quote-section{
  background:var(--red);
  color:#fff;
}
.quote-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:55px;
  align-items:center;
}
.quote-copy .section-kicker{color:rgba(255,255,255,.66)}
.quote-copy h2{
  margin:10px 0 16px;
  color:#fff;
  font-size:clamp(34px,3.2vw,44px);
  line-height:1.08;
}
.quote-copy p{
  color:#fff;
  font-size:16px;
  line-height:1.65;
}
.quote-copy ul{
  margin:24px 0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:8px 20px;
  list-style:none;
}
.quote-copy li{
  color:#fff;
  font-size:15px;
  line-height:1.5;
}
.contact-cards{display:flex;gap:10px}
.contact-cards a{
  min-width:170px;
  padding:14px 18px;
  background:#fff;
  color:#111;
  border-radius:8px;
}
.contact-cards b{display:block;font-size:15px}
.contact-cards span{
  display:block;
  margin-top:2px;
  color:var(--muted);
  font-size:12px;
}
.lead-form{
  padding:28px;
  background:#fff;
  color:#111;
  border-radius:var(--radius);
  box-shadow:0 18px 50px rgba(0,0,0,.18);
}
.lead-form h3{
  margin:0 0 24px;
  color:var(--ink);
  font-size:28px;
  line-height:1.2;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.lead-form label{
  display:block;
  margin-bottom:12px;
  color:#111;
  font-size:13px;
  font-weight:700;
}
.lead-form input,
.lead-form select,
.lead-form textarea{
  width:100%;
  margin-top:6px;
  padding:12px;
  color:#111;
  background:#fff;
  border:1px solid #d9dde4;
  border-radius:7px;
  outline:none;
  font-size:14px;
}
.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(25,74,170,.1);
}
.form-note{
  margin-top:12px;
  color:var(--muted);
  font-size:11px;
  text-align:center;
}
.form-status{
  margin-top:8px;
  font-size:13px;
  font-weight:700;
}
.form-status.ok{color:#11833c}
.form-status.err{color:#b32020}
.honeypot{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}

/* ---------- FOOTER ---------- */
.footer{
  padding:30px 0;
  background:linear-gradient(90deg,#0d2b59 0%,#123b77 55%,#194aaa 100%);
  color:#fff;
  border-top:1px solid rgba(255,255,255,.2);
  box-shadow:0 -8px 24px rgba(9,35,75,.12);
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.footer-inner b{font-size:16px;letter-spacing:.025em}
.footer-inner span{
  display:block;
  margin-top:3px;
  color:#c9d7ed;
  font-size:12px;
}
.footer-inner>div:last-child{
  padding:10px 15px;
  border:1px solid rgba(255,255,255,.25);
  border-radius:999px;
  background:rgba(255,255,255,.08);
  font-size:13px;
}
.footer a{color:#fff;font-weight:800}

/* ---------- MODAL PRODUCT ---------- */
.modal{
  position:fixed;
  inset:0;
  z-index:100;
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.modal.is-open{display:flex}
.modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.66);
}
.modal-card{
  position:relative;
  z-index:2;
  width:min(1080px,100%);
  max-height:90vh;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(420px,1fr) minmax(420px,1fr);
  background:#fff;
  border-radius:16px;
}
.modal-close{
  position:absolute;
  top:10px;
  right:12px;
  z-index:5;
  width:40px;
  height:40px;
  padding:0;
  border:0;
  border-radius:50%;
  background:#111;
  color:#fff;
  font-size:25px;
  line-height:1;
  cursor:pointer;
}
.modal-gallery{
  min-height:0;
  padding:18px;
  display:flex;
  flex-direction:column;
  background:#f7f8fa;
}
.modal-gallery>img{
  width:100%;
  height:470px;
  object-fit:contain;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
}
.modal-thumbs{
  padding-top:10px;
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:7px;
}
.modal-thumb{
  width:100%;
  aspect-ratio:1/1;
  padding:3px;
  overflow:hidden;
  background:#fff;
  border:2px solid transparent;
  border-radius:8px;
  cursor:pointer;
}
.modal-thumb.is-active{border-color:var(--red)}
.modal-thumb img{
  width:100%;
  height:100%;
  object-fit:contain;
}
.modal-content{
  padding:34px 34px 30px;
  overflow:auto;
}
.modal-content .section-kicker{color:var(--red)}
.modal-content h3{
  margin:8px 0 14px;
  color:var(--ink);
  font-size:29px;
  line-height:1.28;
}
.modal-content p{
  color:var(--text);
  font-size:15px;
  line-height:1.65;
}
.modal-spec{
  margin-top:18px;
  border-top:1px solid var(--line);
  font-size:14px;
}
.modal-spec div{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:20px;
  padding:10px 0;
  border-bottom:1px solid var(--line);
}
.modal-spec b{
  flex:0 0 35%;
  color:var(--ink);
  font-weight:700;
}
.modal-spec span{
  color:#111827;
  text-align:right;
  line-height:1.45;
}
.modal-actions{
  margin-top:20px;
  display:flex;
  gap:10px;
}

/* ---------- MOBILE BAR ---------- */
.mobile-bar{display:none}

/* ---------- TABLET ---------- */
@media(max-width:1024px){
  .desktop-nav,.header-actions{display:none}
  .menu-btn{display:block}
  .category-grid,.product-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .quote-box{position:static}
  .modal-card{grid-template-columns:1fr 1fr}
}

/* ---------- MOBILE ---------- */
@media(max-width:768px){
  body{padding-bottom:90px}
  .container{width:min(calc(100% - 28px),var(--max))}
  .header-inner{min-height:70px}
  .brand img{width:200px;height:50px}

  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid div{
    min-height:92px;
    padding:17px 8px;
    background:#fff;
    border:1px solid #dce6f3;
    border-radius:10px;
    box-shadow:0 5px 16px rgba(25,74,170,.06);
  }
  .stats-grid{gap:10px;padding:16px 0}
  .stats-grid div:nth-child(2n){border-right:1px solid #dce6f3}
  .stats-grid div:last-child{grid-column:1/-1;border-right:1px solid #dce6f3}
  .stats-grid b{font-size:27px}
  .stats-grid span{font-size:12px}

  .section{padding:54px 0}
  .section-head{margin-bottom:30px}
  .section-head h2,.split h2{
    font-size:28px;
    line-height:1.18;
  }
  .section-head p{font-size:14px;line-height:1.6}
  #san-pham .section-kicker{padding:8px 14px;font-size:10px;letter-spacing:.1em}
  #featured .section-kicker{padding:8px 14px;font-size:10px;letter-spacing:.1em}

  .quote-layout,
  .application-grid{grid-template-columns:1fr}
  .category-grid,.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .category-card img{padding:9px}
  .category-card>div{padding:14px}
  .category-card h3{font-size:15px}
  .category-card p{display:none}
  .category-card a{font-size:11px}
  .big-icon{height:145px;font-size:42px}
  .product-card>img{height:180px;padding:8px}
  .product-body{padding:13px}
  .tag{font-size:10px;padding:4px 7px}
  .product-body h3{font-size:18px}
  .product-body p{display:none}
  .product-actions{align-items:stretch;flex-direction:column;gap:8px;margin-top:10px;padding-top:10px}
  .product-actions a,.btn-link{width:100%;min-height:40px;padding:8px 5px;text-align:center;border-radius:5px;font-size:12px}

  .option-grid{grid-template-columns:1fr}
  .config-item summary{min-height:58px;padding:10px 12px;font-size:14px}
  .config-item summary b{flex-basis:34px;width:34px;height:34px}
  .dimensions-fields,.config-fields-2{grid-template-columns:1fr}
  .check-fields{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .process-grid div{min-height:145px;padding:18px}
  .process-grid b{font-size:16px}
  .process-cta{display:grid;grid-template-columns:1fr;gap:8px}
  .process-cta .btn{width:100%}
  .logo-grid{grid-template-columns:repeat(2,1fr)}

  .quote-layout{gap:34px}
  .quote-box h3{font-size:19px}
  .quote-copy h2{font-size:32px}
  .quote-copy ul{grid-template-columns:1fr}
  .contact-cards{display:grid}
  .form-grid{grid-template-columns:1fr}
  .lead-form{padding:22px}
  .lead-form h3{font-size:24px}

  .footer-inner{display:grid;justify-items:center;text-align:center}

  .mobile-bar{
    position:fixed;
    left:10px;
    right:10px;
    bottom:max(10px,env(safe-area-inset-bottom));
    z-index:80;
    height:66px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    overflow:hidden;
    background:#fff;
    border:1px solid rgba(255,255,255,.35);
    border-radius:16px;
    box-shadow:0 10px 30px rgba(7,23,50,.3);
  }
  .mobile-bar a{
    min-width:0;
    padding:8px 4px 7px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    color:#fff;
    background:#102f61;
    border-right:1px solid rgba(255,255,255,.18);
    font-weight:800;
    transition:filter .2s ease;
  }
  .mobile-bar a:last-child{border-right:0}
  .mobile-bar a:nth-child(2){background:linear-gradient(135deg,#194aaa,#315df6)}
  .mobile-bar a:nth-child(3){background:linear-gradient(135deg,#ed1c24,#cf1118)}
  .mobile-bar a:active{filter:brightness(.88)}
  .mobile-bar i{font-size:18px;line-height:1}
  .mobile-bar span{
    display:block;
    margin:0;
    overflow:hidden;
    font-size:10px;
    line-height:1.1;
    letter-spacing:.02em;
    text-overflow:ellipsis;
    white-space:nowrap;
  }

  body.modal-open{overflow:hidden;padding-bottom:0}
  body.modal-open .mobile-bar{display:none}
  .modal{padding:8px}
  .modal-card{
    width:min(100%,430px);
    height:calc(100dvh - 16px);
    max-height:calc(100dvh - 16px);
    grid-template-columns:1fr;
    grid-template-rows:max-content max-content;
    overflow:auto;
    overscroll-behavior:contain;
    border-radius:13px;
  }
  .modal-gallery,.modal-content{min-width:0}
  .modal-gallery{
    min-height:286px;
    padding:12px 12px 8px;
    flex:none;
  }
  .modal-gallery>img{
    height:210px;
    min-height:210px;
    flex:0 0 210px;
    padding:6px;
  }
  .modal-thumbs{
    display:flex;
    gap:7px;
    overflow-x:auto;
    padding:8px 0 3px;
    scrollbar-width:thin;
  }
  .modal-thumb{
    flex:0 0 56px;
    width:56px;
    height:56px;
    aspect-ratio:auto;
  }
  .modal-content{
    position:relative;
    z-index:2;
    padding:17px 18px 0;
    overflow:visible;
    background:#fff;
  }
  .modal-content h3{
    margin:0 42px 10px 0;
    font-size:21px;
    line-height:1.28;
    white-space:normal;
    overflow-wrap:anywhere;
  }
  .modal-content p{font-size:13px;line-height:1.55}
  .modal-spec{margin-top:14px;font-size:12.5px}
  .modal-spec div{
    display:grid;
    grid-template-columns:minmax(92px,36%) minmax(0,1fr);
    gap:10px;
    padding:9px 0;
  }
  .modal-spec b{flex:auto}
  .modal-spec span{text-align:right;overflow-wrap:anywhere}
  .modal-actions{
    position:sticky;
    bottom:0;
    z-index:4;
    margin:16px -18px 0;
    padding:12px 18px calc(12px + env(safe-area-inset-bottom));
    display:grid;
    grid-template-columns:1.35fr 1fr;
    gap:8px;
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 -8px 20px rgba(15,35,70,.08);
  }
  .modal-actions .btn{min-height:44px;padding:0 10px;font-size:12px}
  .modal-close{
    position:fixed;
    top:18px;
    right:max(18px,calc((100vw - 430px)/2 + 10px));
    width:40px;
    height:40px;
  }
}

/* ---------- SMALL MOBILE ---------- */
@media(max-width:420px){
  .hero{min-height:570px}
  .hero-content{padding-top:31px}
  .hero h1{font-size:clamp(25px,7.35vw,28px);line-height:1.1}
  .hero h1 span{white-space:normal}
  .process-grid{grid-template-columns:1fr}
  .modal-actions{grid-template-columns:1.35fr 1fr}
  .brand img{width:190px;height:46px}
  .menu-btn{padding:9px 10px;font-size:11px}
  .product-card>img{height:160px}
}