:root{
  --yellow:#ffd400;
  --black:#111111;
  --ink:#1a1a1a;
  --muted:#5c5c5c;
  --bg:#ffffff;
  --bg-soft:#f5f5f4;
  --border:#e5e3e0;
  --radius:8px;
}

*{box-sizing:border-box;margin:0;padding:0;}

body{
  font-family:"Segoe UI",Arial,Helvetica,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
}

img{max-width:100%;display:block;}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

.container{
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}

a{color:inherit;text-decoration:none;}

/* Buttons */
.btn{
  display:inline-block;
  padding:13px 28px;
  border-radius:6px;
  font-weight:700;
  font-size:0.95rem;
  transition:all .15s ease;
  border:2px solid transparent;
  cursor:pointer;
}
.btn-primary{background:var(--yellow);color:#111;}
.btn-primary:hover{background:#e6bf00;}
.btn-outline-light{border-color:#fff;color:#fff;background:transparent;white-space:nowrap;}
.btn-outline-light:hover{background:#fff;color:var(--black);}

.link-arrow{font-weight:700;color:var(--ink);display:inline-block;}
.link-arrow:hover{color:#b89b00;}

.icon-btn{
  background:none;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  color:var(--black);padding:6px;
}

/* Top bar */
.top-bar{
  background:var(--bg-soft);border-bottom:1px solid var(--border);
  padding:9px 0;
}
.top-bar span{
  font-size:0.72rem;font-weight:700;letter-spacing:0.4px;
  text-transform:uppercase;color:var(--muted);
}

/* Header */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--black);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo-img{height:26px;width:auto;}
.main-nav{display:flex;gap:6px;align-items:stretch;align-self:stretch;}
.main-nav a{font-weight:600;font-size:0.92rem;color:#fff;}
.main-nav > a{display:flex;align-items:center;height:100%;padding:0 6px;}
.main-nav a:hover{color:var(--yellow);}
.main-nav a.active-link{color:var(--yellow);}
.header-actions{display:flex;gap:6px;align-items:center;}
.header-actions .icon-btn{color:#fff;}
/* Nút menu hamburger chỉ cần trên di động (desktop đã có main-nav đầy đủ) */
#menuToggle{display:none;}

/* Nav item với mega-menu / dropdown */
.nav-item{display:flex;align-items:center;}
/* Nav-item chứa dropdown hẹp (Ngành nghề) cần làm điểm neo định vị riêng.
   Nav-item chứa mega-menu (Sản phẩm) KHÔNG được làm điểm neo — để mega-menu
   trồi lên bám theo .site-header (positioned) và trải full-width, thay vì
   bị bó hẹp theo đúng bề rộng chữ "Sản phẩm". */
.nav-item:has(.dropdown-menu){position:relative;}
.nav-item > a{display:flex;align-items:center;gap:5px;height:100%;padding:0 6px;}
.nav-chev{width:9px;height:9px;flex-shrink:0;transition:transform .15s ease;}
.nav-item:hover .nav-chev,.nav-item:focus-within .nav-chev{transform:rotate(180deg);}

.mega-menu{
  display:none;position:absolute;top:100%;left:0;right:0;
  background:#fff;border-top:3px solid var(--yellow);
  box-shadow:0 16px 32px rgba(0,0,0,0.18);
  padding:32px 0;z-index:300;
}
.nav-item:hover .mega-menu,.nav-item:focus-within .mega-menu{display:block;}
.mega-menu-grid{
  max-width:1240px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:repeat(6,1fr);gap:24px;
}
.mega-col h4{
  font-size:0.78rem;text-transform:uppercase;letter-spacing:0.3px;
  color:var(--ink);font-weight:800;margin-bottom:12px;
  padding-bottom:10px;border-bottom:2px solid var(--border);
}
.mega-col h4 a{color:inherit;}
.mega-col h4 a:hover{color:#b89b00;}
.mega-col a{display:block;padding:6px 0;font-size:0.85rem;color:var(--muted);font-weight:500;}
.mega-col a:hover{color:#b89b00;}

.dropdown-menu{
  display:none;position:absolute;top:100%;left:0;min-width:260px;
  background:#fff;border-top:3px solid var(--yellow);
  box-shadow:0 16px 32px rgba(0,0,0,0.18);
  padding:10px 0;z-index:300;
}
.nav-item:hover .dropdown-menu,.nav-item:focus-within .dropdown-menu{display:block;}
.dropdown-menu a{display:block;padding:10px 20px;font-size:0.88rem;color:var(--ink);font-weight:500;}
.dropdown-menu a:hover{background:var(--bg-soft);color:#b89b00;}

/* Top bar: thương hiệu trái, liên hệ nhanh phải */
.top-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.top-bar-contact{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.top-bar-contact a,.top-bar-contact span{
  font-size:0.75rem;color:var(--muted);display:inline-flex;align-items:center;gap:5px;white-space:nowrap;
}
.top-bar-contact a:hover{color:#b89b00;}
.top-bar-contact svg{width:13px;height:13px;flex-shrink:0;}

.search-bar{
  max-height:0;overflow:hidden;
  background:var(--bg-soft);
  transition:max-height .25s ease;
  border-bottom:1px solid transparent;
}
.search-bar.open{max-height:80px;border-bottom:1px solid var(--border);}
.search-bar .container{padding-top:14px;padding-bottom:14px;}
.search-bar input{
  width:100%;padding:12px 16px;border-radius:6px;
  border:1px solid var(--border);font-size:0.95rem;
}

/* Overlay menu */
.menu-overlay{
  position:fixed;inset:0;background:var(--bg-soft);
  z-index:300;transform:translateX(100%);
  transition:transform .25s ease;
  overflow-y:auto;
}
.menu-overlay.open{transform:translateX(0);}
.menu-panel{max-width:600px;margin:0 auto;padding:20px 24px 40px;}
.menu-panel-head{display:flex;align-items:center;justify-content:space-between;padding:10px 0 24px;}
.accordion-item{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--border);padding:18px 20px;
  font-size:1.1rem;font-weight:700;cursor:pointer;margin-top:10px;border-radius:4px;
}
.accordion-item .plus{font-weight:400;font-size:1.4rem;transition:transform .2s ease;}
.accordion-item.open .plus{transform:rotate(45deg);}
.accordion-body{
  max-height:0;overflow:hidden;background:#fff;
  transition:max-height .2s ease;
  display:flex;flex-direction:column;
}
.accordion-body.open{max-height:300px;padding:6px 20px 16px;}
.accordion-body a{padding:8px 0;font-size:0.98rem;border-bottom:1px solid var(--border);}
.menu-foot-link{
  display:block;text-align:center;background:#fff;border:1px solid var(--border);
  padding:16px;margin-top:12px;font-weight:600;border-radius:4px;
}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;min-height:560px;display:flex;align-items:flex-end;}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.75) 10%,rgba(0,0,0,.25) 60%,rgba(0,0,0,.05) 100%);}
.hero-content{position:relative;padding:60px 24px 64px;max-width:640px;}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:1px;
  font-size:0.78rem;font-weight:700;color:var(--yellow);margin-bottom:14px;
}
.hero-content h1{font-size:3rem;line-height:1.1;margin-bottom:16px;font-weight:800;}
.hero-content p{color:#e4e4e4;font-size:1.05rem;margin-bottom:26px;}

/* Feature blocks */
.feature-block{padding:70px 0;}
.feature-alt{background:var(--bg-soft);}
.feature-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.feature-grid.reverse .feature-img{order:2;}
.feature-img img{border-radius:var(--radius);width:100%;height:340px;object-fit:cover;}
.eyebrow-dark{
  display:inline-block;text-transform:uppercase;letter-spacing:1px;
  font-size:0.78rem;font-weight:700;color:#b89b00;margin-bottom:12px;
}
.feature-text h2{font-size:1.9rem;margin-bottom:14px;}
.feature-text p{color:var(--muted);margin-bottom:18px;max-width:480px;}

/* Stat band */
.stat-band{background:var(--black);color:#fff;padding:48px 0;}
.stat-inner{display:grid;grid-template-columns:auto 1fr auto;gap:36px;align-items:center;}
.stat-number{font-size:3rem;font-weight:800;color:var(--yellow);white-space:nowrap;}
.stat-number span{display:block;font-size:1rem;font-weight:600;color:#fff;}
.stat-text h3{font-size:1.2rem;margin-bottom:6px;}
.stat-text p{color:#c9c9c9;font-size:0.92rem;max-width:520px;}

/* Products / category page style */
.products{padding:64px 0;}
.breadcrumb{font-size:0.85rem;color:var(--muted);margin-bottom:18px;}
.breadcrumb span{margin:0 6px;}
.page-title{font-size:2.1rem;margin-bottom:14px;}
.page-desc{color:var(--muted);max-width:680px;margin-bottom:30px;}

.search-box{
  position:relative;max-width:100%;margin-bottom:20px;
}
.search-box svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);}
.search-box input{
  width:100%;padding:14px 16px 14px 46px;border:1px solid var(--border);
  border-radius:6px;font-size:0.98rem;background:var(--bg-soft);
}
.search-box input:focus{outline:2px solid var(--yellow);background:#fff;}

.results-bar{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:14px 0;margin-bottom:6px;font-weight:600;color:var(--muted);
}
.filters-btn{
  display:flex;align-items:center;gap:8px;background:none;border:none;
  font-weight:700;color:var(--ink);cursor:pointer;font-size:0.95rem;
}

.filter-panel{
  display:none;flex-wrap:wrap;gap:10px;padding:18px 0;
}
.filter-panel.open{display:flex;}
.filter-chip{
  padding:8px 16px;border:1px solid var(--border);border-radius:20px;
  font-size:0.85rem;font-weight:600;cursor:pointer;color:var(--muted);
  transition:all .15s ease;
}
.filter-chip:hover{border-color:var(--ink);color:var(--ink);}
.filter-chip.active{background:var(--yellow);border-color:var(--yellow);color:#111;}

.product-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:26px;margin-top:20px;
}
.product-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  transition:box-shadow .2s ease,transform .2s ease;
}
.product-card:hover{box-shadow:0 10px 26px rgba(0,0,0,0.1);transform:translateY(-3px);}
.product-img{
  height:260px;background:#fff;display:flex;align-items:center;
  justify-content:center;padding:8px;border-radius:var(--radius);
  border:1px solid var(--border);
}
.product-img img{width:100%;height:100%;object-fit:contain;object-position:center;}
.product-body{padding:16px 4px 4px;}
.product-body h3{font-size:1rem;margin-bottom:8px;line-height:1.35;}
.product-body .desc{font-size:0.88rem;color:var(--muted);}
.product-card.hidden{display:none;}
.no-results{text-align:center;color:var(--muted);padding:40px 0;}

/* Industries */
.industries{padding:64px 0;background:var(--bg-soft);}
.section-title-center{text-align:center;font-size:1.9rem;margin-bottom:34px;}
.industry-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.industry-card{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--yellow);
  border-radius:6px;padding:20px;font-weight:700;font-size:0.95rem;
  transition:box-shadow .15s ease;
}
.industry-card:hover{box-shadow:0 6px 16px rgba(0,0,0,0.08);}

/* Know-how / news */
.knowhow{padding:64px 0;}
.section-head-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;flex-wrap:wrap;gap:10px;}
.section-head-row h2{font-size:1.9rem;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--bg-soft);border-radius:var(--radius);padding:24px;
  border-top:4px solid var(--yellow);
}
.news-tag{
  display:inline-block;font-size:0.72rem;font-weight:700;text-transform:uppercase;
  color:#b89b00;margin-bottom:10px;letter-spacing:0.4px;
}
.news-card h4{font-size:1.02rem;line-height:1.4;}

/* About */
.about{background:var(--black);color:#fff;padding:80px 0;}
.about-inner{max-width:720px;}
.about .eyebrow-dark{color:var(--yellow);}
.about h2{font-size:2.1rem;margin-bottom:18px;}
.about p{color:#cfcfcf;margin-bottom:20px;}
.about .link-arrow{color:var(--yellow);}
.stat-band .link-arrow{color:var(--yellow);}

/* Newsletter */
.newsletter{background:var(--yellow);padding:56px 0;}
.newsletter-inner{
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.newsletter-inner h2{font-size:1.6rem;margin-bottom:8px;color:#111;}
.newsletter-inner p{color:#3a3200;max-width:460px;}
.newsletter-form{display:flex;gap:10px;flex-wrap:wrap;}
.newsletter-form input{
  padding:13px 16px;border-radius:6px;border:2px solid #111;min-width:240px;font-size:0.95rem;
}
.newsletter-form .btn-primary{background:#111;color:var(--yellow);}
.newsletter-form .btn-primary:hover{background:#000;}

/* Footer */
.site-footer{background:#0d0d0d;color:#b8b8b8;padding:60px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;
}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px;}
.footer-col a{display:block;padding:6px 0;font-size:0.9rem;}
.footer-col a:hover{color:var(--yellow);}
.footer-brand p{font-size:0.85rem;margin:14px 0 18px;max-width:320px;}
.footer-logo{height:35px;}
.menu-logo{height:35px;}
.footer-cta{display:inline-block;}
.social-icons{display:flex;gap:14px;margin-top:16px;}
.social-icons a{
  display:flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:#1f1f1f;color:#9a9a9a;transition:background .15s ease,color .15s ease;
}
.social-icons a:hover{background:var(--yellow);color:#111;}
.social-icons svg{width:16px;height:16px;}
.footer-bottom{
  border-top:1px solid #2a2a2a;padding:18px 24px;
  display:flex;justify-content:space-between;font-size:0.8rem;flex-wrap:wrap;gap:8px;
}

/* Nav active state */
.btn-outline-dark{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline-dark:hover{background:var(--ink);color:#fff;}

/* Category tabs (catalog page) */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.cat-tab{
  padding:10px 20px;border:2px solid var(--border);border-radius:24px;
  background:#fff;font-weight:700;font-size:0.9rem;cursor:pointer;color:var(--muted);
  transition:all .15s ease;
}
.cat-tab:hover{border-color:var(--ink);color:var(--ink);}
.cat-tab.active{background:var(--black);border-color:var(--black);color:var(--yellow);}
.mini-tag{
  display:inline-block;font-size:0.68rem;font-weight:700;text-transform:uppercase;
  letter-spacing:0.3px;color:#b89b00;margin-bottom:6px;
}

/* Product detail page */
.pd-breadcrumb-wrap{padding:20px 0 0;}
.pd-main{padding:20px 0 50px;}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.pd-gallery{
  background:#fff;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;padding:30px;
  height:420px;position:sticky;top:90px;
  border:1px solid var(--border);
}
.pd-gallery img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;}
.pd-cat{
  display:inline-block;font-size:0.75rem;font-weight:700;text-transform:uppercase;
  color:#b89b00;letter-spacing:0.4px;margin-bottom:10px;
}
.pd-info h1{font-size:1.9rem;margin-bottom:14px;line-height:1.25;}
.pd-shortdesc{color:var(--muted);font-size:1.02rem;margin-bottom:24px;}
.pd-cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px;}
.pd-trust{list-style:none;display:flex;flex-direction:column;gap:8px;}
.pd-trust li{font-size:0.92rem;color:var(--muted);}

.pd-tabs-section{padding:0 0 70px;}
.pd-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:34px;}
.pd-tab{
  padding:14px 26px;background:none;border:none;font-weight:700;font-size:0.95rem;
  color:var(--muted);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;
}
.pd-tab.active{color:var(--ink);border-bottom-color:var(--yellow);}
.pd-tab-panel{max-width:820px;}
.pd-lead{font-size:1.05rem;color:var(--ink);margin-bottom:30px;line-height:1.7;}
.pd-tab-panel h3{font-size:1.25rem;margin:30px 0 16px;}
.pd-features{list-style:none;display:flex;flex-direction:column;gap:12px;margin-bottom:10px;}
.pd-features li{display:flex;align-items:flex-start;gap:12px;font-size:0.96rem;}
.pd-feat-icon{font-size:1.1rem;flex-shrink:0;}
.pd-specs{width:100%;border-collapse:collapse;}
.pd-specs tr{border-bottom:1px solid var(--border);}
.pd-specs td{padding:12px 10px;font-size:0.92rem;}
.pd-specs td:first-child{color:var(--muted);font-weight:600;width:45%;}
.pd-applications{list-style:none;display:flex;flex-direction:column;gap:10px;}
.pd-applications li{padding-left:22px;position:relative;font-size:0.96rem;}
.pd-applications li::before{content:"✔";position:absolute;left:0;color:#b89b00;font-weight:700;}
.pd-why{color:var(--muted);line-height:1.7;}
.pd-why-company{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:10px;}
.pd-why-company li{font-size:0.96rem;}
.pd-contact-band{
  margin-top:34px;background:var(--bg-soft);border-radius:var(--radius);
  padding:22px 26px;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;
}
.pd-no-review{color:var(--muted);}

.pd-related{padding:20px 0 70px;background:var(--bg-soft);}
.pd-related .container{padding-top:44px;}

/* Articles page */
.articles{padding:10px 0 70px;}
.article-list{display:flex;flex-direction:column;gap:22px;max-width:840px;}
.article-card{
  background:var(--bg-soft);border-radius:var(--radius);padding:28px 30px;
  border-left:4px solid var(--yellow);
}
.article-card h2{font-size:1.3rem;margin:8px 0 6px;line-height:1.35;}
.article-meta{font-size:0.82rem;color:var(--muted);margin-bottom:14px;}
.article-card > p{color:var(--ink);margin-bottom:6px;}
.article-card details{margin-top:10px;}
.article-card summary{
  cursor:pointer;font-weight:700;color:#b89b00;font-size:0.9rem;list-style:none;
}
.article-card summary::-webkit-details-marker{display:none;}
.article-card summary::after{content:" ▾";}
.article-card details[open] summary::after{content:" ▴";}
.article-card details p{margin:14px 0;color:var(--muted);line-height:1.7;}

/* Contact page */
.contact-grid{
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;margin-top:36px;
}
.contact-info{display:flex;flex-direction:column;gap:16px;}
.contact-card{
  background:var(--bg-soft);border-radius:var(--radius);padding:22px 24px;
  border-left:4px solid var(--yellow);
}
.contact-card-note{border-left-color:var(--border);}
.contact-value{font-size:1.15rem;font-weight:700;margin:6px 0 4px;}
.contact-value a{color:var(--ink);}
.contact-value a:hover{color:#b89b00;}
.contact-note{font-size:0.86rem;color:var(--muted);}
.contact-card-note p{font-size:0.92rem;color:var(--muted);line-height:1.6;}
.contact-form{
  background:var(--bg-soft);border-radius:var(--radius);padding:32px;
}
.contact-form h2{font-size:1.4rem;margin-bottom:8px;}
.contact-form-desc{color:var(--muted);font-size:0.92rem;margin-bottom:24px;}
.form-group{margin-bottom:18px;}
.form-group label{
  display:block;font-size:0.85rem;font-weight:700;margin-bottom:6px;color:var(--ink);
}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:6px;
  font-size:0.95rem;font-family:inherit;background:#fff;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:2px solid var(--yellow);
}
.form-group textarea{resize:vertical;}
.contact-submit{width:100%;font-size:1rem;}
.contact-submit:disabled{opacity:0.7;cursor:not-allowed;}
.contact-error{
  background:#fdeceb;border:1px solid #f3b9b4;color:#a3271b;
  border-radius:10px;padding:12px 14px;margin-top:16px;font-size:0.88rem;
}
.hp-field{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;overflow:hidden;}
.contact-success{
  background:var(--bg-soft);border-radius:var(--radius);padding:40px 32px;text-align:center;
}
.contact-success .contact-success-icon{font-size:2.4rem;margin-bottom:12px;}
.contact-success h2{font-size:1.3rem;margin-bottom:8px;}
.contact-success p{color:var(--muted);}

/* Responsive */
@media(max-width:960px){
  .main-nav{display:none;}
  #menuToggle{display:flex;}
  .feature-grid{grid-template-columns:1fr;gap:24px;}
  .feature-grid.reverse .feature-img{order:0;}
  .stat-inner{grid-template-columns:1fr;text-align:center;}
  .industry-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-content h1{font-size:2.2rem;}
  .pd-grid{grid-template-columns:1fr;gap:28px;}
  .pd-gallery{position:static;height:320px;}
  .contact-grid{grid-template-columns:1fr;gap:24px;}
}
@media(max-width:560px){
  .industry-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero{min-height:460px;}
  .newsletter-inner{flex-direction:column;align-items:flex-start;}
  .pd-tabs{gap:0;}
  .pd-tab{padding:12px 14px;font-size:0.88rem;}
  .article-card{padding:22px 18px;}
}

/* Floating contact widget: Zalo / bản đồ / Messenger / gọi điện */
.floating-contact{
  position:fixed;right:20px;bottom:26px;z-index:400;
  display:flex;flex-direction:column;align-items:flex-end;gap:14px;
}
.fc-expandable{
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  max-height:0;opacity:0;overflow:hidden;pointer-events:none;
  transform:translateY(8px);
  transition:max-height .28s ease,opacity .22s ease,transform .22s ease;
}
.fc-expandable.open{max-height:300px;opacity:1;pointer-events:auto;transform:translateY(0);}
.fc-toggle{
  position:relative;width:54px;height:54px;border-radius:50%;border:3px solid #fff;cursor:pointer;flex-shrink:0;
  background:linear-gradient(145deg,#ffe155,var(--yellow));color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(17,17,17,0.25);
  transition:transform .2s ease,box-shadow .2s ease;
}
.fc-toggle::before{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  border:2px solid rgba(255,212,0,0.55);
  animation:fc-ring 2.4s ease-out infinite;
}
.fc-toggle:hover{transform:scale(1.08);box-shadow:0 8px 22px rgba(17,17,17,0.32);}
.fc-toggle svg{width:24px;height:24px;position:relative;z-index:1;}
.fc-toggle .fc-toggle-icon-close{display:none;}
.fc-toggle.open .fc-toggle-icon-open{display:none;}
.fc-toggle.open .fc-toggle-icon-close{display:block;}
.fc-toggle.open::before{display:none;}
@keyframes fc-ring{
  0%{transform:scale(1);opacity:0.7;}
  100%{transform:scale(1.35);opacity:0;}
}
.fc-item{display:flex;align-items:center;gap:10px;text-decoration:none;}
.fc-label{
  background:#fff;color:var(--ink);font-weight:700;font-size:0.82rem;
  padding:8px 16px;border-radius:20px;white-space:nowrap;
  box-shadow:0 4px 12px rgba(17,17,17,0.14);border:1px solid rgba(17,17,17,0.06);
  opacity:0;transform:translateX(6px);transition:opacity .2s ease,transform .2s ease;
}
.fc-expandable.open .fc-label{opacity:1;transform:translateX(0);}
.fc-icon{
  width:50px;height:50px;border-radius:50%;flex-shrink:0;border:3px solid #fff;
  display:flex;align-items:center;justify-content:center;
  background:#fff;box-shadow:0 6px 16px rgba(17,17,17,0.22);
  transition:transform .18s ease,box-shadow .18s ease;
}
.fc-item:hover .fc-icon{transform:translateY(-2px) scale(1.06);box-shadow:0 8px 20px rgba(17,17,17,0.3);}
.fc-icon svg{width:24px;height:24px;}
.fc-icon.zalo{color:#0068ff;background:#fff;border-color:#0068ff;}
.fc-icon.map{background:linear-gradient(145deg,#3fbf67,#2e9e50);color:#fff;border-color:#fff;}
.fc-icon.messenger{background:linear-gradient(145deg,#3a9dff,#0084ff);color:#fff;border-color:#fff;}
.fc-phone-row{display:flex;align-items:center;gap:10px;}
.fc-phone-pill{
  background:linear-gradient(145deg,#e33246,#c81e2c);color:#fff;font-weight:800;font-size:0.9rem;
  padding:10px 18px;border-radius:24px;white-space:nowrap;text-decoration:none;
  box-shadow:0 6px 16px rgba(200,30,44,0.35);
  transition:transform .18s ease;
}
.fc-phone-pill:hover{transform:translateY(-2px);}
.fc-phone-btn{
  width:60px;height:60px;border-radius:50%;flex-shrink:0;border:3px solid #fff;
  background:linear-gradient(145deg,#e33246,#c81e2c);color:#fff;text-decoration:none;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(200,30,44,0.4);
  transition:transform .18s ease;
}
.fc-phone-btn:hover{transform:scale(1.06);}
.fc-phone-btn svg{width:20px;height:20px;}
.fc-phone-btn span{font-size:0.58rem;font-weight:800;margin-top:2px;letter-spacing:0.2px;}
@media(max-width:560px){
  .floating-contact{right:12px;bottom:16px;gap:10px;}
  .fc-label{display:none;}
  .fc-icon{width:44px;height:44px;}
  .fc-icon svg{width:20px;height:20px;}
  .fc-phone-pill{display:none;}
  .fc-toggle{width:50px;height:50px;}
  .fc-phone-btn{width:54px;height:54px;}
}