/* ===================================================================
   Muc in Minh Tien - Static SEO site
   Shared stylesheet included by every page
   =================================================================== */

/* Be Vietnam Pro — self-host, font-display swap */
@font-face {
  font-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../fonts/bvp-400-vietnamese.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../fonts/bvp-400-latin.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../fonts/bvp-600-vietnamese.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../fonts/bvp-600-latin.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../fonts/bvp-700-vietnamese.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../fonts/bvp-700-latin.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url(../fonts/bvp-800-vietnamese.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-display: swap;
  font-family: 'Be Vietnam Pro';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url(../fonts/bvp-800-latin.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 {
  --primary: #0b5fae;
  --primary-dark: #073d73;
  --primary-light: #eaf3fc;
  --accent: #ff7a30;
  --accent-dark: #bf4a08;
  --ink: #1c2733;
  --ink-soft: #56626e;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --border: #e3e9f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(15, 45, 90, .07);
  --shadow-md: 0 14px 34px rgba(15, 45, 90, .12);
  --max-width: 1180px;
  --font: 'Be Vietnam Pro', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 { line-height: 1.28; margin: 0 0 .5em; font-weight: 700; color: var(--ink); }
h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul { padding-left: 1.2em; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--primary); color: #fff;
  padding: 10px 16px; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

section { padding: 64px 0; }
section.tight { padding: 40px 0; }
.section-head { max-width: 700px; margin: 0 auto 36px; text-align: center; }
.section-head .eyebrow {
  display: inline-block; color: var(--accent-dark); font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; font-size: .8rem; margin-bottom: 10px;
}
.bg-soft { background: var(--bg-soft); }

.breadcrumb { color: var(--ink-soft); font-size: .92rem; margin: 18px 0 8px; }
.breadcrumb a { color: var(--ink-soft); }
.breadcrumb a:hover { color: var(--primary); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: .98rem;
  border: 2px solid transparent; cursor: pointer; transition: all .18s ease; text-align: center;
}
.btn-primary { background: var(--accent-dark); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: #9c3c06; color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-block { width: 100%; }

.hotline-btn {
  display: inline-flex; align-items: center; gap: 6px; background: var(--accent-dark); color: #fff !important;
  padding: 10px 18px; border-radius: 999px; font-weight: 700; white-space: nowrap; transition: background .18s;
}
.hotline-btn:hover { background: #9c3c06; }
.hotline-btn-mobile { display: none; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 500; background: rgba(255,255,255,.97); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.header-inner { position: relative; display: flex; align-items: center; gap: 20px; padding: 12px 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.05rem; color: var(--ink); flex-shrink: 0; }
.logo:hover { color: var(--ink); }
.logo-icon { flex-shrink: 0; }
.logo-text-1 { color: var(--accent-dark); }
.logo-text-2 { color: var(--primary-dark); }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text small { font-weight: 600; color: var(--ink-soft); font-size: .68rem; letter-spacing: .03em; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px;
  border: 1px solid var(--border); border-radius: 8px; background: #fff; cursor: pointer; margin-left: auto;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); margin: 0 auto; transition: all .2s ease; }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.main-nav { display: flex; align-items: center; gap: 26px; margin-left: 12px; flex: 1; }
.main-nav ul { list-style: none; display: flex; gap: 22px; padding: 0; margin: 0; flex-wrap: wrap; }
.main-nav a { color: var(--ink); font-weight: 600; font-size: .96rem; padding: 6px 2px; position: relative; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px; background: var(--accent);
  transition: right .18s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.main-nav a.active { color: var(--primary-dark); }
.main-nav > .hotline-btn-mobile { margin-left: auto; }

/* Mobile CTA + Float CTA */
.mobile-cta-bar { display: none; }
.float-cta { position: fixed; right: 18px; bottom: 90px; z-index: 600; display: flex; flex-direction: column; gap: 10px; }
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: #fff !important; font-size: .72rem; font-weight: 700; box-shadow: var(--shadow-md); text-align: center;
}
.float-zalo { background: #0068ff; }
.float-call { background: var(--accent-dark); font-size: 1.3rem; animation: pulse 2.2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,122,48,.55); }
  70% { box-shadow: 0 0 0 14px rgba(255,122,48,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,122,48,0); }
}

/* Promo slider */
.promo-slider { position: relative; overflow: hidden; padding: 0; }
.slider-track { display: flex; transition: transform .6s ease; }
.slide { min-width: 100%; padding: 56px 0; text-align: center; color: #fff; }
.slide-inner { max-width: 640px; margin: 0 auto; }
.slide-tag {
  display: inline-block; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.35);
  padding: 6px 16px; border-radius: 999px; font-size: .8rem; font-weight: 700; letter-spacing: .03em;
  text-transform: uppercase; margin-bottom: 14px;
}
.slide .slide-h { color: #fff; margin: 0 0 10px; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; line-height: 1.28; }
.slide p { color: rgba(255,255,255,.92); margin-bottom: 22px; }
.slide-a { background: linear-gradient(120deg, var(--accent-dark), var(--accent)); }
.slide-b { background: linear-gradient(120deg, var(--primary-dark), var(--primary)); }
.slide-c { background: linear-gradient(120deg, #1c2733, #3a4b5c); }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%;
  border: none; background: rgba(255,255,255,.25); color: #fff; font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: background .18s; z-index: 5;
}
.slider-arrow:hover { background: rgba(255,255,255,.45); }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; justify-content: center; gap: 8px; z-index: 5; margin: 0; padding: 0; }
.dot { width: 12px; height: 12px; border-radius: 50%; border: 6px solid transparent; background: rgba(255,255,255,.6); background-clip: padding-box; cursor: pointer; padding: 0; box-sizing: content-box; }
.dot.active { background: #fff; background-clip: padding-box; width: 24px; border-radius: 7px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 70%);
  color: #fff; padding: 68px 0;
}
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.hero h1 { color: #fff; }
.hero p.lead { color: rgba(255,255,255,.9); font-size: 1.08rem; max-width: 520px; }
.hero .btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.hero-badges { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero-badge { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25); border-radius: var(--radius-sm); padding: 12px 16px; font-size: .86rem; font-weight: 600; }
.hero-panel { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius); padding: 26px; }
.hero-panel h3 { color: #fff; }
.hero-panel ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.hero-panel li { display: flex; gap: 10px; align-items: flex-start; color: rgba(255,255,255,.92); font-size: .94rem; }
.hero-panel li::before { content: "✓"; color: #7fe0c0; font-weight: 800; }

/* Cards grid */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
  box-shadow: var(--shadow-sm); transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card .icon-badge {
  width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 14px;
}
.card h3 { margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }
.card a.card-link { font-weight: 700; font-size: .9rem; }

/* Price table */
.price-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
table.price-table { width: 100%; border-collapse: collapse; min-width: 480px; background: #fff; }
table.price-table th, table.price-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); }
table.price-table th { background: var(--primary-light); color: var(--primary-dark); font-size: .88rem; text-transform: uppercase; letter-spacing: .03em; }
table.price-table td.price { font-weight: 700; color: var(--accent-dark); white-space: nowrap; }
table.price-table tr:last-child td { border-bottom: none; }
table.price-table tr:hover td { background: var(--bg-soft); }
.brand-block { margin-bottom: 36px; }
.brand-block h2, .brand-block h3 { display: flex; align-items: center; gap: 10px; font-size: 1.15rem; }
.price-note { background: var(--primary-light); border-left: 4px solid var(--primary); padding: 16px 20px; border-radius: var(--radius-sm); font-size: .92rem; color: var(--ink); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; padding-top: 8px; }
.step-num {
  width: 42px; height: 42px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 1.05rem;
}

/* Tag list */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-list span { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 999px; padding: 8px 16px; font-size: .88rem; color: var(--ink-soft); }

/* CTA banner */
.cta-banner {
  background: linear-gradient(120deg, var(--accent-dark), var(--accent)); color: #fff; border-radius: var(--radius);
  padding: 40px; text-align: center;
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,.92); }
.cta-banner .btn-outline { background: #fff; border-color: #fff; color: var(--accent-dark); }
.cta-banner .btn-outline:hover { background: transparent; color: #fff; }

/* Footer */
.site-footer { background: var(--ink); color: rgba(255,255,255,.75); padding: 56px 0 24px; }
.footer-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer-col h2 { color: #fff; font-size: 1.05rem; margin-bottom: 14px; }
.footer-col p, .footer-col a { color: rgba(255,255,255,.68); font-size: .92rem; }
.footer-col a:hover { color: #fff; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.site-footer .copyright { text-align: center; border-top: 1px solid rgba(255,255,255,.12); margin-top: 36px; padding-top: 20px; font-size: .84rem; }
.map-embed { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.map-embed iframe { width: 100%; height: 320px; border: 0; display: block; }

/* Prose / bai viet dai */
.prose { max-width: 820px; margin: 0 auto; }
.prose p { color: var(--ink-soft); margin: 0 0 16px; line-height: 1.75; }
.prose h2 { font-size: 1.5rem; margin: 40px 0 14px; color: var(--ink); }
.prose h3 { font-size: 1.15rem; margin: 26px 0 10px; color: var(--ink); }
.prose ul { margin: 0 0 18px; padding-left: 22px; color: var(--ink-soft); line-height: 1.7; }
.prose ul li { margin-bottom: 8px; }
.prose ul li strong { color: var(--ink); }

/* Danh sach khu vuc phuc vu (link theo quan) */
.area-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin: 8px 0 4px; }
.area-grid a {
  display: block; text-align: center; padding: 12px 10px; border-radius: var(--radius-sm);
  background: var(--primary-light); color: var(--primary-dark); font-weight: 600; font-size: .92rem;
  border: 1px solid var(--border); transition: .16s;
}
.area-grid a:hover { background: var(--primary); color: #fff; }
.area-grid span {
  display: block; text-align: center; padding: 12px 10px; border-radius: var(--radius-sm);
  background: var(--bg-soft); color: var(--ink-soft); font-size: .92rem; border: 1px dashed var(--border);
}

/* Bai viet huong dan */
.prose ol { margin: 0 0 18px; padding-left: 22px; color: var(--ink-soft); line-height: 1.7; }
.prose ol li { margin-bottom: 10px; }
.prose ol li strong, .prose p strong { color: var(--ink); }
.post-meta { color: var(--ink-soft); font-size: .88rem; margin: 6px 0 0; }
.prose figure { margin: 26px 0; }
.prose figure svg { width: 100%; height: auto; display: block; border: 1px solid var(--border); border-radius: var(--radius-sm); background: #fff; }
.prose figcaption { text-align: center; font-size: .86rem; color: var(--ink-soft); margin-top: 8px; }
.callout {
  border-left: 4px solid var(--primary); background: var(--primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 18px; margin: 22px 0;
  color: var(--ink-soft); line-height: 1.7; font-size: .95rem;
}
.callout strong { color: var(--primary-dark); }
.callout.warn { border-left-color: var(--accent); background: #fff4ec; }
.callout.warn strong { color: var(--accent-dark); }
.post-card h2, .post-card h3 { margin: 8px 0 8px; font-size: 1.06rem; line-height: 1.45; }
.post-card h2 a, .post-card h3 a { color: var(--ink); }
.post-card h2 a:hover, .post-card h3 a:hover { color: var(--primary); }
.post-tag { display: inline-block; font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; color: var(--primary); background: var(--primary-light); border-radius: 20px; padding: 3px 10px; }

/* Trang san pham */
.grid > * { min-width: 0; } /* chan ten SP dai lam banh track grid */
.product-card h3, .product-card h3 a { overflow-wrap: anywhere; }
.product-detail { display: grid; grid-template-columns: minmax(280px, 420px) 1fr; gap: 40px; align-items: start; }
.product-detail-img img {
  width: 100%; height: auto; border: 1px solid var(--border); border-radius: var(--radius);
  background: #fff; padding: 14px;
}
.product-price { font-size: 1.7rem; font-weight: 800; color: var(--accent-dark); margin: 4px 0 2px; }
.product-stock { color: #1d8a4e; font-weight: 600; font-size: .94rem; }
.product-card { display: flex; flex-direction: column; }
.product-card .p-img { position: relative; padding: 10px 10px 0; }
.product-card .p-img img {
  width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: contain;
  background: #fff; border-radius: var(--radius-sm);
}
.product-card h3 { font-size: .98rem; line-height: 1.45; margin: 10px 0 6px; flex: 1; }
.product-card h3 a { color: var(--ink); }
.product-card h3 a:hover { color: var(--primary); }
.product-card .p-price { font-weight: 800; color: var(--accent-dark); font-size: 1.06rem; margin: 0 0 4px; }
@media (max-width: 720px) {
  .product-detail { grid-template-columns: 1fr; gap: 22px; }
}

/* Bang gia day du */
.bg-group { margin: 34px 0 12px; font-size: 1.12rem; scroll-margin-top: 80px; }
.bg-count { color: var(--ink-soft); font-weight: 600; font-size: .85rem; }
.bg-table td a { color: var(--ink); }
.bg-table td a:hover { color: var(--primary); }
.price-filter {
  width: 100%; max-width: 560px; display: block; margin: 0 auto;
  padding: 14px 20px; font-size: 1rem; font-family: var(--font);
  border: 2px solid var(--primary); border-radius: 999px; outline: none;
}
.price-filter:focus { box-shadow: 0 0 0 4px var(--primary-light); }
.bg-empty { text-align: center; color: var(--ink-soft); padding: 26px 0; display: none; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px;
  background: #fff; box-shadow: var(--shadow-sm); overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 16px 20px; font-weight: 600; color: var(--ink); list-style: none;
  position: relative; padding-right: 46px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  font-size: 1.35rem; color: var(--primary); font-weight: 400;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details[open] summary { color: var(--primary-dark); }
.faq details > div { padding: 0 20px 18px; color: var(--ink-soft); line-height: 1.7; }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .hotline-btn-desktop { display: none; }
  .main-nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0; z-index: 501;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 6px 20px 18px; gap: 2px;
    border-top: 1px solid var(--border); box-shadow: var(--shadow-md);
    max-height: calc(100vh - 64px); overflow-y: auto;
  }
  body.nav-open .main-nav { display: flex; }
  .main-nav ul { flex-direction: column; gap: 0; width: 100%; }
  .main-nav ul li { width: 100%; border-bottom: 1px solid var(--border); }
  .main-nav ul li a { display: block; padding: 14px 4px; }
  .main-nav > .hotline-btn-mobile { display: inline-flex; margin: 10px 0 0; }
  .mobile-cta-bar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 550; background: #fff;
    border-top: 1px solid var(--border); box-shadow: 0 -6px 18px rgba(0,0,0,.08);
  }
  .mobile-cta { flex: 1; text-align: center; padding: 14px 8px; font-weight: 700; font-size: .9rem; color: #fff !important; }
  .mobile-cta.call { background: var(--accent-dark); }
  .mobile-cta.zalo { background: #0068ff; }
  body { padding-bottom: 58px; }
  .float-cta { bottom: 74px; right: 14px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  section { padding: 44px 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 26px; }
  .cta-banner { padding: 28px 20px; }
  .slide { padding: 40px 0 46px; }
  .slide-inner { padding: 0 36px; }
  .slider-arrow { width: 34px; height: 34px; font-size: .9rem; }
  .slider-arrow.prev { left: 6px; }
  .slider-arrow.next { right: 6px; }
}