/**
 * 🎨 BỘ MÃ NGUỒN CSS CHUẨN BRAND DESIGN SYSTEM CHO MOITRUONGXUYENVIET.COM
 * Căn cứ: wiki/brand-design-system.md
 * Đơn vị: Công Ty TNHH Môi Trường Xuyên Việt (MST: 0311351506)
 * Phiên bản: 2.0 (Custom PHP / Native HTML5 & CSS3)
 */

@import url("https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=Be+Vietnam+Pro:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap");

/* ==========================================================================
   1. DESIGN TOKENS & BIẾN MÀU SẮC (BRAND DESIGN SYSTEM 2026)
   ========================================================================== */
:root {
  /* Brand Primary & Accent — Sampled directly from corporate logo */
  --green-500: #136E3B;  /* Logo "VIỆT" + "Environment Company", nav, primary buttons, links */
  --green-600: #0F5C31;  /* Hover state */
  --green-700: #0C4A27;  /* Active state */
  --green-800: #08351C;  /* Dark technical sections, dark hero, sticky bar */
  --green-900: #052312;  /* Deepest footer, bottom bar */
  --green-50:  #EDF5F0;  /* Subtle green tint / badge background */
  --green-100: #D2E5D9;
  --green-200: #A6CBB4;
  --green-300: #72AE8A;
  --green-400: #3E8F61;

  --red-500:   #E92825;  /* Logo "XUYÊN" + bird mark, hotline, prices, primary CTA, eyebrow */
  --red-600:   #C51F1D;  /* Hover state for primary CTA */
  --red-700:   #9C1917;
  --red-800:   #731211;
  --red-900:   #4A0B0A;
  --red-50:    #FDEDEC;  /* Subtle red tint / alert background */

  /* Water (Support hue for treatment / process diagrams) */
  --water-500: #0F7A99;
  --water-50:  #EAF4F8;

  /* Neutrals — slightly cool grey ramp */
  --neutral-0:   #FFFFFF;
  --neutral-25:  #FAFBFA;
  --neutral-50:  #F4F6F4;  /* Surface subtle */
  --neutral-100: #E8EBE9;  /* Border subtle */
  --neutral-200: #D5DAD7;
  --neutral-300: #B4BBB7;
  --neutral-400: #8C948F;
  --neutral-500: #6B736E;  /* Text muted */
  --neutral-600: #4F5652;
  --neutral-700: #3A403C;  /* Text body */
  --neutral-800: #252A27;
  --neutral-900: #141814;  /* Text primary / headings */

  /* Accents */
  --mtxv-mint-400: #3FBF7F;   /* Status dot (Live/Active Indicator) */
  --mtxv-mint-300: #7FE3B0;   /* Text highlight on dark backgrounds */

  /* Typography */
  --font-display: 'Archivo', 'Be Vietnam Pro', Arial, sans-serif;
  --font-sans: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --mtxv-font-main: var(--font-sans);

  /* Legacy Mapping for full backwards-compatibility */
  --mtxv-green-600: var(--green-500);  /* #136E3B */
  --mtxv-green-700: var(--green-600);  /* #0F5C31 */
  --mtxv-green-800: var(--green-800);  /* #08351C */
  --mtxv-green-900: var(--green-900);  /* #052312 */

  --mtxv-red-500:   var(--red-500);    /* #E92825 */
  --mtxv-red-600:   var(--red-600);    /* #C51F1D */
  --mtxv-red-light: var(--red-50);     /* #FDEDEC */

  --mtxv-ink-heading: var(--neutral-900); /* #141814 */
  --mtxv-body:        var(--neutral-700); /* #3A403C */
  --mtxv-muted:       var(--neutral-500); /* #6B736E */
  --mtxv-border:      var(--neutral-100); /* #E8EBE9 */
  --mtxv-white:       var(--neutral-0);   /* #FFFFFF */

  --mtxv-paper:   var(--neutral-0);
  --mtxv-surface: var(--neutral-50);      /* #F4F6F4 */
  --mtxv-tint:    var(--green-50);        /* #EDF5F0 */
  --mtxv-field:   var(--neutral-50);

  /* Corner Radii — 4px controls, 6px cards (no pill buttons) */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-pill: 999px;
  --radius-control: var(--radius-sm);  /* 4px */
  --radius-card: var(--radius-md);     /* 6px */

  --mtxv-radius-sm: var(--radius-control); /* 4px */
  --mtxv-radius-md: var(--radius-card);    /* 6px */
  --mtxv-radius-lg: 10px;
  --mtxv-radius-full: 9999px;

  --mtxv-shadow-sm: 0 2px 8px rgba(20, 24, 20, 0.06);
  --mtxv-shadow-md: 0 6px 20px rgba(20, 24, 20, 0.08);
  --mtxv-shadow-lg: 0 12px 32px rgba(20, 24, 20, 0.12);
  --mtxv-shadow-cta: 0 4px 14px rgba(233, 40, 37, 0.35);
  --mtxv-shadow-cta-hover: 0 6px 20px rgba(197, 31, 29, 0.45);

  /* Layout Widths */
  --mtxv-container: 1180px;
}

/* ==========================================================================
   2. RESET & BASE TYPOGRAPHY
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--mtxv-font-main);
  font-size: 15px;
  line-height: 1.6;
  color: var(--mtxv-body);
  background-color: var(--mtxv-paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--mtxv-ink-heading);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

h1 { font-size: 2.25rem; letter-spacing: -0.02em; }
h2 { font-size: 1.75rem; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

a {
  color: var(--mtxv-green-600);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--mtxv-green-700);
}

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

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

/* ==========================================================================
   3. NÚT BẤM CHUẨN (BUTTONS - SECTION 05)
   ========================================================================== */
.btn-mtxv-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--mtxv-red-500);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--mtxv-radius-md);
  border: none;
  text-decoration: none;
  box-shadow: var(--mtxv-shadow-cta);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-mtxv-primary:hover {
  background-color: var(--mtxv-red-600);
  box-shadow: var(--mtxv-shadow-cta-hover);
  transform: translateY(-2px);
}

.btn-mtxv-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--mtxv-green-800);
  color: #FFFFFF !important;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--mtxv-radius-md);
  border: none;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-mtxv-dark:hover {
  background-color: var(--mtxv-green-600);
  transform: translateY(-1px);
}

.btn-mtxv-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #FFFFFF;
  color: var(--mtxv-ink-heading) !important;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 22px;
  border-radius: var(--mtxv-radius-md);
  border: 1px solid var(--mtxv-border);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-mtxv-outline:hover {
  border-color: var(--mtxv-green-600);
  color: var(--mtxv-green-600) !important;
  background-color: var(--mtxv-surface);
}

/* ==========================================================================
   4. NHÃN & CHIP TRẠNG THÁI (BADGES & CHIPS - SECTION 06)
   ========================================================================== */
.chip-status {
  display: inline-flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--mtxv-border);
  border-radius: var(--mtxv-radius-full);
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--mtxv-green-600);
  box-shadow: var(--mtxv-shadow-sm);
}
.chip-status::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mtxv-mint-400);
  margin-right: 8px;
  box-shadow: 0 0 6px rgba(63, 191, 127, 0.6);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.chip-dark {
  display: inline-flex;
  align-items: center;
  background: var(--mtxv-green-800);
  color: #FFFFFF;
  border-radius: var(--mtxv-radius-full);
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
}

.badge-green {
  display: inline-block;
  background: var(--mtxv-tint);
  color: var(--mtxv-green-600);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--mtxv-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-red {
  display: inline-block;
  background: var(--mtxv-red-light);
  color: var(--mtxv-red-500);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--mtxv-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ==========================================================================
   5. TOPBAR & HEADER ARCHITECTURE
   ========================================================================== */
.topbar {
  background-color: var(--mtxv-green-800);
  color: #FFFFFF;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar-links {
  display: flex;
  gap: 20px;
  align-items: center;
}
.topbar-highlight {
  color: var(--mtxv-mint-300);
  font-weight: 600;
}

.main-header {
  background-color: var(--mtxv-white);
  border-bottom: 1px solid var(--mtxv-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
  width: 100%;
}
.main-header.is-sticky {
  box-shadow: var(--mtxv-shadow-md);
}
.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
  max-width: 1280px;
  flex-wrap: nowrap !important;
  gap: 16px;
}

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.site-logo-img {
  height: 48px;
  width: auto;
  max-width: 165px;
  object-fit: contain;
  display: block;
}
.site-logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-control);
  background: var(--mtxv-mint-400);
  color: var(--green-800);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  font-family: var(--font-display);
  flex-shrink: 0;
  margin-right: 12px;
}
.site-logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.site-logo-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.site-logo-tagline {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 3px;
  line-height: 1.2;
}

.main-nav {
  display: flex;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap !important;
  white-space: nowrap !important;
}
.main-nav > li {
  list-style: none;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}
.main-nav > li > a {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--mtxv-ink-heading);
  padding: 8px 10px;
  position: relative;
  text-decoration: none;
  white-space: nowrap;
  display: inline-block;
  border-radius: var(--radius-control);
  transition: all 0.2s ease;
}
.main-nav > li > a:hover {
  color: var(--mtxv-green-600);
  background-color: var(--green-50);
}
.main-nav > li > a.active {
  color: var(--mtxv-green-600);
  font-weight: 700;
}
.main-nav > li > a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 8px;
  right: 8px;
  height: 3px;
  background: var(--mtxv-green-600);
  border-radius: 2px;
}

.header-cta-wrap {
  flex-shrink: 0;
}
.header-cta-wrap .btn-mtxv-primary {
  padding: 8px 16px;
  font-size: 13px;
  white-space: nowrap;
  gap: 6px;
}

.mobile-menu-toggle {
  display: none;
}

/* ==========================================================================
   6. HERO BANNER SECTION (EPC TOTAL SOLUTION)
   ========================================================================== */
.hero-section {
  background: linear-gradient(180deg, var(--mtxv-paper) 0%, var(--mtxv-surface) 100%);
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.hero-badge-wrap {
  margin-bottom: 20px;
}
.hero-title {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--mtxv-ink-heading);
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-title span {
  color: var(--mtxv-green-600);
}
.hero-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--mtxv-body);
  margin-bottom: 32px;
}
.hero-cta-group {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 36px;
}
.hero-trust-list {
  display: flex;
  gap: 24px;
  list-style: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--mtxv-ink-heading);
}
.hero-trust-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-card-preview {
  background: #FFFFFF;
  border-radius: var(--mtxv-radius-lg);
  border: 1px solid var(--mtxv-border);
  padding: 24px;
  box-shadow: var(--mtxv-shadow-lg);
  position: relative;
}

/* ==========================================================================
   7. TRUST & PROOF METRICS BAR (4 CỘT CHỨNG MINH THỰC TẾ)
   ========================================================================== */
.proof-bar {
  background: var(--mtxv-green-800);
  color: #FFFFFF;
  padding: 40px 0;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.proof-item {
  border-right: 1px solid rgba(255,255,255,0.12);
  padding: 0 16px;
}
.proof-item:last-child {
  border-right: none;
}
.proof-number {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--mtxv-mint-300);
  line-height: 1.1;
  margin-bottom: 6px;
}
.proof-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ==========================================================================
   8. CORE SERVICES CARDS MATRIX (4 TRỤ CỘT DỊCH VỤ)
   ========================================================================== */
.services-section {
  padding: 80px 0;
  background: var(--mtxv-white);
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-subtitle {
  color: var(--red-500);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section-subtitle::before {
  content: '';
  display: inline-block;
  width: 22px;
  height: 2px;
  background-color: var(--red-500);
  flex-shrink: 0;
}
.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--mtxv-ink-heading);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--mtxv-body);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--neutral-0);
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 2px rgba(20, 24, 20, 0.06);
  transition: all 0.2s cubic-bezier(.2, 0, .2, 1);
  position: relative;
}
.service-card:hover {
  border-color: var(--neutral-200);
  border-top-color: var(--green-600);
  box-shadow: 0 4px 12px rgba(20, 24, 20, 0.10);
  transform: translateY(-2px);
}
.service-icon {
  width: 44px;
  height: 44px;
  background: var(--green-50);
  color: var(--green-500);
  border-radius: var(--radius-control);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--mtxv-ink-heading);
}
.service-card p {
  font-size: 14px;
  color: var(--mtxv-body);
  margin-bottom: 20px;
  flex-grow: 1;
}
.service-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--mtxv-green-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 6px 0;
  transition: transform var(--transition-fast), color var(--transition-fast);
}
.service-link:hover {
  transform: translateX(4px);
  color: var(--mtxv-green-700);
}

/* ==========================================================================
   9. INTERACTIVE TECHNICAL WIDGETS (MÁY TÍNH CÔNG SUẤT & TRA CỨU QCVN)
   ========================================================================== */
.widget-section {
  padding: 80px 0;
  background: var(--mtxv-paper);
  border-top: 1px solid var(--mtxv-border);
  border-bottom: 1px solid var(--mtxv-border);
}
.widget-box {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-radius: var(--mtxv-radius-lg);
  padding: 36px;
  box-shadow: var(--mtxv-shadow-md);
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  margin-bottom: 6px;
}
.form-input, .form-select {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--mtxv-field);
  border: 1px solid var(--mtxv-border);
  border-radius: var(--mtxv-radius-md);
  font-size: 14px;
  color: var(--mtxv-ink-heading);
  outline: none;
  transition: border-color 0.2s ease;
}
.form-input:focus, .form-select:focus {
  border-color: var(--mtxv-green-600);
  background-color: #FFFFFF;
}

/* ==========================================================================
   10. LEAD CAPTURE SECTION (KHẢO SÁT 2H TẠI KCN)
   ========================================================================== */
.lead-capture-section {
  background: var(--mtxv-green-800);
  color: #FFFFFF;
  padding: 80px 0;
  position: relative;
}
.lead-capture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.lead-benefit-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}
.lead-benefit-icon {
  width: 36px;
  height: 36px;
  background: rgba(127, 227, 176, 0.15);
  color: var(--mtxv-mint-300);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
}
.lead-form-card {
  background: #FFFFFF;
  border-radius: var(--mtxv-radius-lg);
  padding: 36px;
  color: var(--mtxv-ink-heading);
  box-shadow: var(--mtxv-shadow-lg);
}

/* ==========================================================================
   11. FOOTER ARCHITECTURE & CROSS-SITE ROUTING
   ========================================================================== */
.main-footer {
  background: linear-gradient(180deg, #072e18 0%, #052312 100%);
  color: rgba(255, 255, 255, 0.78);
  font-size: 13.5px;
  padding: 0 0 30px;
  position: relative;
  border-top: 1px solid rgba(127, 227, 176, 0.2);
}

/* 11.1 Pre-Footer Quick Action Strip */
.footer-cta-strip {
  background: rgba(8, 53, 28, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 34px 0;
  backdrop-filter: blur(8px);
}
.footer-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.footer-cta-text {
  max-width: 680px;
}
.footer-cta-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--mtxv-mint-300);
  margin-bottom: 6px;
}
.footer-cta-eyebrow .eyebrow-line {
  width: 22px;
  height: 2px;
  background: var(--red-500);
  display: inline-block;
}
.footer-cta-title {
  font-family: var(--font-display);
  color: #FFFFFF;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 6px 0;
}
.footer-cta-desc {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0;
}
.footer-cta-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.footer-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red-500);
  color: #FFFFFF !important;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13.5px;
  padding: 11px 18px;
  border-radius: var(--radius-control);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(233, 40, 37, 0.35);
  transition: all 0.2s ease;
}
.footer-btn-primary:hover {
  background: var(--red-600);
  box-shadow: 0 6px 18px rgba(233, 40, 37, 0.5);
  transform: translateY(-2px);
}
.footer-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(127, 227, 176, 0.45);
  color: #FFFFFF !important;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 13.5px;
  padding: 10px 18px;
  border-radius: var(--radius-control);
  text-decoration: none;
  transition: all 0.2s ease;
}
.footer-btn-secondary:hover {
  background: rgba(127, 227, 176, 0.15);
  border-color: var(--mtxv-mint-300);
  color: var(--mtxv-mint-300) !important;
  transform: translateY(-2px);
}

/* 11.2 Main Footer Grid (4 Columns) */
.footer-main-body {
  padding-top: 44px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 1.05fr 1.15fr 1.15fr;
  gap: 36px;
  margin-bottom: 44px;
}
.footer-col-title {
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
}
.footer-col-title .col-title-bar {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--mtxv-mint-400);
  margin-top: 8px;
  border-radius: 1px;
}

/* Column 1: Brand & Headquarters */
.footer-logo-wrap {
  display: inline-block;
  margin-bottom: 10px;
  transition: opacity 0.2s ease;
}
.footer-logo-wrap:hover {
  opacity: 0.9;
}
.footer-logo-img {
  width: 190px;
  height: auto;
  display: block;
}
.footer-brand-tagline {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mtxv-mint-300);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-company-desc {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 18px;
}
.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 11px;
  font-size: 13px;
  line-height: 1.45;
}
.footer-contact-icon {
  flex-shrink: 0;
  color: var(--mtxv-mint-300);
  margin-top: 2px;
  display: flex;
}
.footer-contact-text {
  flex: 1;
  color: rgba(255, 255, 255, 0.78);
}
.footer-contact-text .contact-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.48);
  margin-bottom: 1px;
}
.footer-phone-link {
  color: var(--mtxv-mint-300) !important;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-phone-link:hover {
  color: #FFFFFF !important;
  text-decoration: underline;
}
.footer-email-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.3);
  transition: all 0.2s;
}
.footer-email-link:hover {
  color: var(--mtxv-mint-300) !important;
  border-bottom-color: var(--mtxv-mint-300);
}
.footer-mst {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--mtxv-mint-300);
}
.mst-note {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.5);
}

/* Columns 2 & 3: Navigation & Hubs */
.footer-nav-list,
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-nav-list li,
.footer-links li {
  margin-bottom: 9px;
}
.footer-nav-list a,
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.4;
  transition: all 0.2s ease;
}
.footer-nav-list a:hover,
.footer-links a:hover {
  color: #FFFFFF;
  transform: translateX(4px);
}
.footer-nav-list .nav-chevron {
  color: var(--mtxv-mint-300);
  flex-shrink: 0;
  transition: transform 0.2s ease, color 0.2s ease;
}
.footer-nav-list a:hover .nav-chevron {
  color: var(--red-500);
  transform: translateX(2px);
}
.footer-hub-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-hub-card {
  display: block;
  padding: 11px 13px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
}
.footer-hub-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--green-500);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.footer-hub-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(127, 227, 176, 0.35);
  transform: translateY(-2px);
}
.footer-hub-card:hover::before {
  opacity: 1;
}
.footer-hub-card .hub-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mtxv-mint-300);
  font-weight: 700;
  margin-bottom: 2px;
}
.footer-hub-card .hub-name {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13.5px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 2px;
}
.footer-hub-card .hub-desc {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.4;
}

/* Column 4: Credentials Card */
.footer-cred-card {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 3px solid var(--mtxv-mint-400);
  border-radius: var(--radius-card);
  padding: 16px 15px;
}
.cred-item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 13px;
}
.cred-item:last-of-type {
  margin-bottom: 14px;
}
.cred-icon {
  color: var(--mtxv-mint-400);
  flex-shrink: 0;
  margin-top: 1px;
  display: flex;
}
.cred-info {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  line-height: 1.4;
}
.cred-info strong {
  color: #FFFFFF;
  font-size: 12.5px;
  margin-bottom: 1px;
}
.cred-info span {
  color: rgba(255, 255, 255, 0.65);
}
.cred-action-card {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.cred-action-label {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.6);
}
.cred-hotline-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--red-500);
  color: #FFFFFF !important;
  padding: 6px 12px;
  border-radius: var(--radius-control);
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12.5px;
  transition: background 0.2s ease;
}
.cred-hotline-btn:hover {
  background: var(--red-600);
}

/* 11.3 Bottom Bar */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom-copy strong {
  color: #FFFFFF;
}
.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-bottom-links a:hover {
  color: var(--mtxv-mint-300);
}
.footer-bottom-links .sep {
  color: rgba(255, 255, 255, 0.25);
  font-size: 10px;
}
.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #FFFFFF;
  padding: 5px 11px;
  border-radius: var(--radius-control);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.back-to-top-btn:hover {
  background: var(--green-600);
  border-color: var(--green-500);
}

/* ==========================================================================
   12. MOBILE FLOATING ACTION BAR (3 NÚT NÓNG CHÂN TRANG)
   ========================================================================== */
.mobile-floating-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #FFFFFF;
  border-top: 1px solid var(--mtxv-border);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.1);
  z-index: 9999;
  padding: 8px 12px;
}
@media (min-width: 769px) {
  .mobile-floating-bar {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
}
.mobile-floating-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.mobile-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  font-weight: 700;
  padding: 6px 2px;
  border-radius: var(--mtxv-radius-sm);
  text-decoration: none;
  border: 1px solid var(--mtxv-border);
}
.mobile-action-btn.call {
  background: var(--mtxv-surface);
  color: var(--mtxv-ink-heading);
}
.mobile-action-btn.zalo {
  background: #0068FF;
  color: #FFFFFF;
  border-color: #0068FF;
}
.mobile-action-btn.email {
  background: var(--green-500);
  color: #FFFFFF;
  border-color: var(--green-500);
}
.mobile-action-btn.survey {
  background: var(--mtxv-red-500);
  color: #FFFFFF;
  border-color: var(--mtxv-red-500);
}

/* ==========================================================================
   11.1 FLOATING QUICK SUPPORT WIDGET (DESKTOP / TABLET 24/7 SUPPORT)
   ========================================================================== */
.floating-support-widget {
  position: fixed;
  right: 24px;
  bottom: 84px;
  z-index: 998;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
@media (max-width: 768px) {
  .floating-support-widget {
    display: none !important;
  }
}
.floating-support-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border-radius: 28px;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  color: #ffffff !important;
}
.floating-support-btn:hover {
  transform: translateX(-6px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.floating-btn-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
}
.floating-btn-label {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.floating-label-sub {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.9;
  line-height: 1.2;
}
.floating-label-main {
  font-size: 13.5px;
  font-weight: 700;
  font-family: var(--font-mono);
  line-height: 1.3;
}
.floating-support-btn.btn-hotline {
  background: var(--red-500);
}
.floating-support-btn.btn-hotline:hover {
  background: var(--red-600);
}
.floating-support-btn.btn-zalo {
  background: #0068FF;
}
.floating-support-btn.btn-zalo:hover {
  background: #0052cc;
}
.floating-support-btn.btn-email {
  background: var(--green-500);
}
.floating-support-btn.btn-email:hover {
  background: var(--green-600);
}

/* ==========================================================================
   12. NỘI DUNG MỞ RỘNG: WORKFLOW, TECH MATRIX, CASE STUDIES, ADVANTAGES, FAQ
   ========================================================================== */

/* Section wrapper */
.section-spacious {
  padding: 72px 0;
  position: relative;
}
.section-bg-subtle {
  background-color: var(--mtxv-surface);
}
.section-bg-white {
  background-color: var(--mtxv-white);
}

/* 1. EPC Workflow Steps */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
  margin-top: 36px;
}
.workflow-card {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-top: 4px solid var(--mtxv-green-600);
  border-radius: var(--radius-card);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.workflow-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--mtxv-shadow-md);
}
.workflow-step-num {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-control);
  background: var(--green-50);
  color: var(--mtxv-green-600);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.workflow-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  margin-bottom: 8px;
  line-height: 1.35;
}
.workflow-desc {
  font-size: 13px;
  color: var(--mtxv-body);
  line-height: 1.55;
  margin: 0;
}

/* Scroll Hint Indicator for Mobile / Tablet */
.tech-matrix-scroll-hint {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--mtxv-green-600);
  background: var(--green-50);
  border: 1px solid rgba(19, 110, 59, 0.15);
  border-radius: var(--radius-control);
  padding: 8px 16px;
  margin: 20px auto 0 auto;
  max-width: 420px;
  font-weight: 600;
  text-align: center;
}
.scroll-hint-icon {
  display: inline-flex;
  animation: scrollHintPulse 1.8s infinite ease-in-out;
}
@keyframes scrollHintPulse {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(5px); }
}
@media (max-width: 992px) {
  .tech-matrix-scroll-hint {
    display: flex;
  }
}

/* 2. Tech Matrix Comparison Table */
.tech-matrix-box {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-top: 4px solid var(--mtxv-green-600);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-top: 24px;
  overflow-x: auto;
  box-shadow: var(--mtxv-shadow-sm);
}
.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.tech-table th {
  background: var(--green-50);
  color: var(--mtxv-green-800);
  font-family: var(--font-display);
  font-weight: 700;
  padding: 12px 14px;
  text-align: left;
  border-bottom: 2px solid var(--mtxv-green-600);
  white-space: nowrap;
}
.tech-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--mtxv-border);
  color: var(--mtxv-body);
  line-height: 1.5;
  vertical-align: top;
}
.tech-table tr:hover td {
  background: rgba(19, 110, 59, 0.02);
}
.tech-name {
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  display: block;
  font-size: 14.5px;
}
.tech-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-control);
  background: var(--mtxv-surface);
  color: var(--mtxv-muted);
  margin-top: 4px;
}

/* 3. Featured Case Studies */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 32px;
}
.project-card {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-top: 4px solid var(--mtxv-green-600);
  border-radius: var(--radius-card);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--mtxv-shadow-md);
}
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
  gap: 10px;
}
.project-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  margin-bottom: 4px;
  line-height: 1.35;
}
.project-location {
  font-size: 12.5px;
  color: var(--mtxv-muted);
  margin-bottom: 12px;
}
.project-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: var(--mtxv-surface);
  border: 1px solid var(--mtxv-border);
  border-radius: var(--radius-control);
  padding: 12px;
  margin-bottom: 14px;
}
.project-stat-item {
  display: flex;
  flex-direction: column;
}
.project-stat-label {
  font-size: 11px;
  color: var(--mtxv-muted);
  margin-bottom: 2px;
}
.project-stat-value {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--mtxv-green-600);
  font-family: var(--font-mono);
}

/* ==========================================================================
   3.1 PROJECT STATS KPI & KCN DISTRIBUTION TRACK RECORD
   ========================================================================== */
.project-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.project-kpi-card {
  background: var(--neutral-0);
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  padding: 20px 16px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--mtxv-shadow-md);
}
.project-kpi-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  color: var(--green-600);
  line-height: 1.1;
  margin-bottom: 6px;
}
.project-kpi-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 4px;
  line-height: 1.35;
}
.project-kpi-sub {
  font-size: 11.5px;
  color: var(--neutral-500);
  line-height: 1.4;
}

/* KCN Regional Distribution Card */
.kcn-distribution-card {
  background: var(--neutral-0);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin-bottom: 32px;
}
.kcn-distribution-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}
.kcn-distribution-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--neutral-900);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.kcn-distribution-badge {
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--green-600);
  background: var(--green-50);
  padding: 3px 8px;
  border-radius: var(--radius-control);
}
.kcn-bars-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.kcn-bar-item {
  display: flex;
  flex-direction: column;
}
.kcn-bar-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 12px;
  margin-bottom: 6px;
}
.kcn-province-name {
  font-weight: 700;
  color: var(--neutral-800);
}
.kcn-project-count {
  font-weight: 700;
  color: var(--green-600);
  font-family: var(--font-mono);
}
.kcn-progress-track {
  height: 8px;
  background: var(--neutral-100);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 6px;
}
.kcn-progress-fill {
  height: 100%;
  background: var(--green-500);
  border-radius: 4px;
  transition: width 0.6s ease;
}
.kcn-zones-text {
  font-size: 11px;
  color: var(--neutral-500);
  line-height: 1.35;
}

/* ==========================================================================
   3.2 B2B BULK WAREHOUSE: FILTER MEDIA & ACTIVATED CARBON
   ========================================================================== */
.product-tabs-wrapper {
  margin-top: 32px;
}
.product-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 28px;
}
.product-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--neutral-0);
  color: var(--neutral-700);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-control);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.product-tab-btn:hover {
  border-color: var(--green-500);
  color: var(--green-600);
  background: var(--green-50);
}
.product-tab-btn.active {
  background: var(--green-500);
  border-color: var(--green-500);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(19, 110, 59, 0.25);
}
.product-tab-count {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  background: var(--neutral-100);
  color: var(--neutral-600);
}
.product-tab-btn.active .product-tab-count {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}
.product-tab-pane {
  display: none;
}
.product-tab-pane.active {
  display: block;
  animation: tabFadeIn 0.3s ease;
}
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 4-Column Product Grid */
.products-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.product-card {
  background: var(--neutral-0);
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--mtxv-shadow-md);
}
.product-img-box {
  position: relative;
  width: 100%;
  height: 180px;
  background: var(--neutral-50);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.product-card:hover .product-img-box img {
  transform: scale(1.05);
}
.product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--green-500);
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: var(--radius-control);
  z-index: 2;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}
.product-badge-red {
  background: var(--red-500);
}
.product-badge-water {
  background: var(--water-500);
}
.product-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.35;
  margin-bottom: 8px;
  min-height: 42px;
}
.product-desc {
  font-size: 12.5px;
  color: var(--neutral-700);
  line-height: 1.5;
  margin-bottom: 12px;
  flex: 1;
}
.product-specs {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius-control);
  padding: 10px 12px;
  margin-bottom: 12px;
}
.product-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 11.5px;
  padding: 3px 0;
  border-bottom: 1px dashed var(--neutral-200);
}
.product-spec-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.product-spec-key {
  color: var(--neutral-500);
}
.product-spec-val {
  color: var(--neutral-900);
  font-weight: 600;
  font-family: var(--font-mono);
  text-align: right;
}
.product-pricing-box {
  font-size: 12px;
  font-weight: 700;
  color: var(--red-600);
  background: var(--red-50);
  border: 1px solid rgba(233, 40, 37, 0.15);
  border-radius: var(--radius-control);
  padding: 6px 10px;
  margin-bottom: 12px;
  text-align: center;
}
.product-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}
.btn-product-call {
  flex: 1;
  background: var(--red-500);
  color: #ffffff !important;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 6px;
  border-radius: var(--radius-control);
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: background 0.2s ease;
}
.btn-product-call:hover {
  background: var(--red-600);
}
.btn-product-detail {
  flex: 1;
  background: #ffffff;
  color: var(--green-600) !important;
  border: 1px solid var(--green-500);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 6px;
  border-radius: var(--radius-control);
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.btn-product-detail:hover {
  background: var(--green-50);
}

/* Warehouse Footer Banner & Monorepo Links */
.warehouse-cta-banner {
  background: var(--green-800);
  color: #ffffff;
  border-radius: var(--radius-card);
  padding: 24px 28px;
  margin-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.warehouse-cta-info {
  max-width: 620px;
}
.warehouse-cta-title {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}
.warehouse-cta-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
  margin: 0;
}
.warehouse-cta-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}
.btn-warehouse-hub {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  color: var(--green-800) !important;
  font-size: 12.5px;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: var(--radius-control);
  text-decoration: none;
  transition: all 0.2s ease;
}
.btn-warehouse-hub:hover {
  background: var(--green-50);
  transform: translateY(-2px);
}

/* 4. Core Advantages (4 Grid) */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 32px;
}
.advantage-card {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-top: 4px solid var(--mtxv-green-600);
  border-radius: var(--radius-card);
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
}
.advantage-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-control);
  background: var(--green-50);
  color: var(--mtxv-green-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.advantage-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  margin-bottom: 8px;
  line-height: 1.35;
}
.advantage-desc {
  font-size: 13px;
  color: var(--mtxv-body);
  line-height: 1.55;
  margin: 0;
}

/* 5. FAQ Accordion Grid */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 32px;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}
.faq-card {
  background: var(--mtxv-white);
  border: 1px solid var(--mtxv-border);
  border-top: 4px solid var(--mtxv-green-600);
  border-radius: var(--radius-card);
  padding: 18px 22px;
  box-shadow: var(--mtxv-shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq-card:hover {
  border-color: rgba(19, 110, 59, 0.3);
  box-shadow: var(--mtxv-shadow-md);
}
.faq-q {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--mtxv-ink-heading);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.4;
  cursor: pointer;
  user-select: none;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 0;
  font-family: inherit;
}
.faq-q:focus-visible {
  outline: 2px solid var(--mtxv-green-600);
  outline-offset: 4px;
  border-radius: 4px;
}
.faq-q-badge {
  color: var(--mtxv-green-600);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 15px;
  flex-shrink: 0;
}
.faq-q-text {
  flex-grow: 1;
  font-family: var(--font-display);
}
.faq-chevron {
  color: var(--mtxv-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--mtxv-surface);
  transition: transform var(--transition-normal), background var(--transition-fast), color var(--transition-fast);
}
.faq-card.active .faq-chevron {
  transform: rotate(180deg);
  background: var(--green-50);
  color: var(--mtxv-green-600);
}
.faq-a-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease-out;
  overflow: hidden;
}
.faq-card.active .faq-a-wrapper {
  grid-template-rows: 1fr;
}
.faq-a-inner {
  min-height: 0;
}
.faq-a {
  font-size: 13.5px;
  color: var(--mtxv-body);
  line-height: 1.6;
  margin: 0;
  padding-top: 14px;
  padding-left: 32px;
}

/* Responsive adjustments for new sections */
@media (max-width: 992px) {
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 576px) {
  .workflow-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .project-stats-grid {
    grid-template-columns: 1fr;
  }
  .section-spacious {
    padding: 48px 0;
  }
  .faq-card {
    padding: 16px;
  }
  .faq-a {
    padding-left: 0;
  }
}

/* ==========================================================================
   13. RESPONSIVE BREAKPOINTS (5 FULL COVERAGE RANGES)
   ========================================================================== */

/* Widget Grid Helper */
.widget-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* 1. Large Screens & Desktop HD (1440px+) */
@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
  }
  .hero-title {
    font-size: 2.85rem;
  }
  .hero-desc {
    font-size: 1.125rem;
  }
}

/* 2. Laptop & Medium Desktop (1024px - 1200px) */
/* 2. Laptop & Medium Desktop (1024px - 1200px) */
@media (max-width: 1200px) {
  .main-nav {
    gap: 4px;
  }
  .main-nav > li > a {
    font-size: 12.5px;
    padding: 6px 7px;
  }
  .header-cta-wrap .btn-mtxv-primary {
    padding: 7px 12px;
    font-size: 12px;
  }
}

/* 3. Tablet & Mobile (< 1024px) */
@media (max-width: 1023px) {
  .topbar {
    display: none;
  }
  .header-cta-wrap {
    display: none;
  }
  .main-nav {
    display: none; /* Responsive Mobile Drawer */
  }
  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #FFFFFF;
    border-bottom: 2px solid var(--green-500);
    padding: 16px 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    z-index: 999;
  }
  .main-nav.is-open li {
    margin-bottom: 10px;
    width: 100%;
  }
  .main-nav.is-open a {
    font-size: 15px;
    display: block;
    padding: 8px 0;
  }
  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--mtxv-border);
    border-radius: var(--radius-control);
    padding: 8px 12px;
    cursor: pointer;
    color: var(--green-600);
    font-weight: 700;
  }
}

@media (max-width: 992px) {
  .hero-grid, .lead-capture-grid, .widget-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .proof-item {
    border-right: none;
  }
  .footer-cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .footer-cta-buttons {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .project-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .kcn-bars-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .products-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .warehouse-cta-banner {
    flex-direction: column;
    text-align: center;
  }
  .warehouse-cta-actions {
    justify-content: center;
    width: 100%;
  }
}

/* 4. Mobile L / Phablet (481px - 768px) */
@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .kcn-bars-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .product-tabs-nav {
    flex-direction: column;
    align-items: stretch;
  }
  .product-tab-btn {
    justify-content: center;
    width: 100%;
  }
  .warehouse-cta-actions {
    flex-direction: column;
  }
  .btn-warehouse-hub {
    justify-content: center;
    width: 100%;
  }
  .footer-cta-strip {
    padding: 24px 0;
  }
  .footer-cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .footer-cta-title {
    font-size: 18px;
  }
  .footer-cta-buttons {
    flex-direction: column;
    gap: 8px;
    width: 100%;
  }
  .footer-btn-primary,
  .footer-btn-secondary {
    width: 100%;
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .main-footer {
    padding-bottom: 75px;
  }
  .hero-title {
    font-size: 2rem;
  }
  .mobile-floating-bar {
    display: block;
  }
}

/* 5. Mobile Medium / iPhone standard (376px - 480px) */
@media (max-width: 480px) {
  .project-kpi-grid {
    grid-template-columns: 1fr;
  }
  .products-grid-4 {
    grid-template-columns: 1fr;
  }
  .product-card-actions {
    flex-direction: column;
  }
  .proof-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .hero-title {
    font-size: 1.85rem;
    line-height: 1.25;
  }
  .hero-cta-group {
    flex-direction: column;
    gap: 10px;
  }
  .btn-mtxv-primary, .btn-mtxv-dark, .btn-mtxv-outline {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .proof-number {
    font-size: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* 6. Mobile S / Small screens (320px - 375px) */
@media (max-width: 375px) {
  html, body {
    overflow-x: hidden;
  }
  .container {
    padding-left: 12px;
    padding-right: 12px;
  }
  .hero-title {
    font-size: 1.6rem;
    line-height: 1.22;
  }
  .hero-badge-wrap {
    margin-bottom: 12px;
  }
  .chip-status {
    font-size: 11px;
    padding: 4px 8px;
  }
  .lead-benefit-item {
    flex-direction: column;
    gap: 8px;
  }
  .lead-benefit-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    font-size: 14px;
  }
  .lead-form-card {
    padding: 16px 12px;
  }
  .widget-box {
    padding: 16px 12px;
  }
  .mobile-action-btn {
    font-size: 10px;
    padding: 6px 2px;
  }
}

/* ==========================================================================
   13. NEWS ARCHIVE & PAGINATION GRID (TIN TỨC & KỸ THUẬT 2026)
   ========================================================================== */
.news-hero-section {
  background: linear-gradient(135deg, var(--green-800) 0%, #052312 100%);
  padding: 44px 0 38px;
  color: #FFFFFF;
  border-bottom: 1px solid rgba(127, 227, 176, 0.2);
}
.news-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 18px;
}
.news-breadcrumb a {
  color: var(--mtxv-mint-300);
  text-decoration: none;
  transition: color 0.2s;
}
.news-breadcrumb a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}
.news-breadcrumb .bc-sep {
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
}
.news-breadcrumb .bc-current {
  color: #FFFFFF;
  font-weight: 600;
}
.news-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--mtxv-mint-300);
  margin-bottom: 8px;
}
.news-eyebrow .eyebrow-line {
  width: 22px;
  height: 2px;
  background: var(--red-500);
  display: inline-block;
}
.news-hero-title {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  margin: 0 0 10px 0;
}
.news-hero-desc {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.82);
  max-width: 820px;
  line-height: 1.6;
  margin: 0;
}

/* 13.0.1 News Search Bar & Topic Chips */
.news-search-bar {
  margin-top: 22px;
  max-width: 680px;
}
.news-search-input-wrap {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border-radius: var(--radius-control);
  padding: 4px 5px 4px 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.news-search-icon {
  color: var(--neutral-400);
  flex-shrink: 0;
  margin-right: 10px;
}
.news-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--neutral-900);
  background: transparent;
  padding: 8px 0;
}
.news-search-input::placeholder {
  color: var(--neutral-500);
}
.news-search-btn {
  background: var(--red-500);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-control);
  padding: 9px 20px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease;
  white-space: nowrap;
}
.news-search-btn:hover {
  background: var(--red-600);
}

.news-topic-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.news-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-control);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 600;
  transition: all 0.2s ease;
}
.news-chip:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.35);
  color: #FFFFFF;
}
.news-chip.active {
  background: var(--green-500);
  border-color: var(--green-400);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(19, 110, 59, 0.4);
}
.news-chip .chip-count {
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(0, 0, 0, 0.28);
  padding: 1px 6px;
  border-radius: 10px;
}

/* 13.1 Archive Layout & Grid */
.news-archive-section {
  padding: 36px 0 60px;
  background-color: var(--neutral-50);
}
.news-stats-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: #FFFFFF;
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius-card);
  margin-bottom: 26px;
  font-size: 13.5px;
  color: var(--neutral-700);
}
.news-stats-total {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.news-stats-total svg {
  color: var(--green-500);
  flex-shrink: 0;
}
.news-stats-total strong {
  color: var(--neutral-900);
  font-family: var(--font-mono);
}
.news-stats-page-pill {
  display: inline-flex;
  padding: 3px 10px;
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-control);
  font-size: 12.5px;
  color: var(--neutral-700);
}
.news-stats-page-pill strong {
  color: var(--green-600);
  font-family: var(--font-mono);
}
.news-archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 36px;
}

/* 13.2 News Card & Enhanced Thumbnail */
.news-card {
  background: #FFFFFF;
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-top-color 0.25s ease;
}
.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(19, 110, 59, 0.12);
  border-top-color: var(--green-600);
}
.news-card-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E8EBE9;
  border-bottom: 1px solid var(--neutral-100);
}
.news-card-thumb-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}
.news-card-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
}
.news-card:hover .news-card-thumb-img {
  transform: scale(1.06);
  filter: brightness(0.92);
}

/* Dark Vignette Overlay for Crisp Contrast */
.news-card-thumb-vignette {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, transparent 35%, transparent 65%, rgba(0, 0, 0, 0.55) 100%);
  pointer-events: none;
  transition: opacity 0.3s ease;
}

/* Hover Action Pill (Đọc Bài Viết) */
.news-card-thumb-hover-action {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 3;
}
.news-card:hover .news-card-thumb-hover-action {
  opacity: 1;
}
.thumb-hover-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--green-500);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-control);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  transform: translateY(4px);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease;
}
.news-card:hover .thumb-hover-btn {
  transform: translateY(0);
}
.thumb-hover-btn:hover {
  background: var(--green-600);
}

/* Dynamic Category Badges with SVG Lucide Icons */
.news-card-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  color: #FFFFFF;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: var(--radius-control);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  line-height: 1;
}
.news-card-badge svg {
  flex-shrink: 0;
}
.news-card-badge.badge-air {
  background: rgba(15, 122, 153, 0.92);
  color: #FFFFFF;
}
.news-card-badge.badge-water {
  background: rgba(19, 110, 59, 0.94);
  color: #FFFFFF;
}
.news-card-badge.badge-legal {
  background: rgba(205, 30, 30, 0.94);
  color: #FFFFFF;
}
.news-card-badge.badge-carbon {
  background: rgba(8, 53, 28, 0.96);
  color: var(--mtxv-mint-300);
}
.news-card-badge.badge-media {
  background: rgba(24, 98, 56, 0.94);
  color: #D1FAE5;
}
.news-card-badge.badge-default {
  background: rgba(20, 24, 20, 0.9);
  color: #FFFFFF;
}

/* Floating Reading Time Pill on Thumbnail */
.news-card-thumb-readtime {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(14, 20, 16, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: var(--radius-control);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  z-index: 2;
}
.news-card-thumb-readtime svg {
  color: var(--mtxv-mint-300);
}

.news-card-body {
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--neutral-500);
  margin-bottom: 8px;
}
.news-card-date {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
}
.news-card-verified {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--green-600);
}
.news-card-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 8px 0;
  height: 45px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-title a {
  color: var(--neutral-900);
  text-decoration: none;
  transition: color 0.2s ease;
}
.news-card-title a:hover {
  color: var(--green-500);
}
.news-card-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--neutral-700);
  margin: 0 0 16px 0;
  height: 60px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-footer {
  margin-top: auto;
  border-top: 1px solid var(--neutral-100);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.news-card-author-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--green-600);
}
.news-card-readmore {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--green-500);
  text-decoration: none;
  transition: all 0.2s ease;
}
.news-card-readmore:hover {
  color: var(--red-500);
  transform: translateX(3px);
}
.news-empty-box {
  grid-column: 1 / -1;
  background: #FFFFFF;
  padding: 48px 24px;
  text-align: center;
  border-radius: var(--radius-card);
  border: 1px solid var(--neutral-100);
  color: var(--neutral-500);
}

/* 13.3 B2B Consultation Strip */
.news-consultation-strip {
  background: linear-gradient(135deg, var(--green-800) 0%, #0d4e2a 100%);
  border-radius: var(--radius-card);
  padding: 30px 34px;
  margin-bottom: 36px;
  box-shadow: 0 8px 24px rgba(8, 53, 28, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}
.consultation-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
}
.consultation-info {
  flex: 1;
}
.consultation-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mtxv-mint-300);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.consultation-eyebrow .eyebrow-dot {
  width: 6px;
  height: 6px;
  background: var(--red-500);
  border-radius: 50%;
  display: inline-block;
}
.consultation-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: #FFFFFF;
  margin: 0 0 8px 0;
}
.consultation-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  max-width: 680px;
}
.consultation-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}
.btn-consultation-hotline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red-500);
  color: #FFFFFF;
  font-size: 13.5px;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 10px 18px;
  border-radius: var(--radius-control);
  text-decoration: none;
  transition: background-color 0.2s ease;
  white-space: nowrap;
}
.btn-consultation-hotline:hover {
  background: var(--red-600);
}
.btn-consultation-survey {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  font-size: 13.5px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-control);
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-consultation-survey:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: #FFFFFF;
}

/* 13.4 Pagination Control Deck */
.pagination-deck {
  background: #FFFFFF;
  border: 1px solid var(--neutral-100);
  border-top: 3px solid var(--green-500);
  border-radius: var(--radius-card);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  padding: 18px 24px;
  margin-top: 10px;
}
.pagination-deck-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--neutral-100);
}
.pagination-deck-info {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--neutral-700);
}
.pagination-deck-info strong {
  color: var(--neutral-900);
  font-family: var(--font-mono);
}
.deck-pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--green-500);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(19, 110, 59, 0.2);
  flex-shrink: 0;
}
.pagination-jump-form {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.jump-label {
  font-size: 12.5px;
  color: var(--neutral-600);
  font-weight: 600;
}
.jump-input {
  width: 58px;
  height: 32px;
  padding: 0 6px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--neutral-900);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-control);
  outline: none;
  transition: border-color 0.2s ease;
}
.jump-input:focus {
  border-color: var(--green-500);
}
.jump-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 32px;
  padding: 0 12px;
  background: var(--green-500);
  color: #FFFFFF;
  font-size: 12.5px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-control);
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.jump-btn:hover {
  background: var(--green-600);
}

.pagination-nav {
  display: flex;
  justify-content: center;
}
.pagination-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}
.pagination-item {
  display: inline-flex;
}
.pagination-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--radius-control);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--neutral-700);
  background: #FFFFFF;
  border: 1px solid var(--neutral-200);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.pagination-link.page-num {
  padding: 0 10px;
}
.pagination-link:hover {
  background: var(--green-50);
  border-color: var(--green-500);
  color: var(--green-600);
  transform: translateY(-2px);
  box-shadow: 0 3px 8px rgba(19, 110, 59, 0.15);
}
.pagination-link.active {
  background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
  border-color: var(--green-600);
  color: #FFFFFF !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(19, 110, 59, 0.35);
  pointer-events: none;
}
.pagination-link.disabled {
  opacity: 0.38;
  pointer-events: none;
  background: var(--neutral-50);
  color: var(--neutral-400);
  border-color: var(--neutral-200);
}
.pagination-link.nav-edge {
  background: var(--neutral-50);
  color: var(--neutral-600);
}
.pagination-link.nav-edge:hover {
  background: var(--green-50);
  color: var(--green-600);
  border-color: var(--green-500);
}
.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 38px;
  color: var(--neutral-500);
  font-size: 14px;
}

/* Responsive Queries for News Archive */
@media (max-width: 1024px) {
  .news-archive-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .consultation-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 768px) {
  .news-hero-section {
    padding: 28px 0 24px;
  }
  .news-hero-title {
    font-size: 22px;
  }
  .news-archive-section {
    padding: 24px 0 40px;
  }
  .news-stats-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 10px 14px;
    font-size: 12.5px;
  }
  .news-archive-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .news-consultation-strip {
    padding: 22px 18px;
  }
  .consultation-title {
    font-size: 17px;
  }
  .consultation-actions {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }
  .btn-consultation-hotline,
  .btn-consultation-survey {
    width: 100%;
    justify-content: center;
  }
  .pagination-deck {
    padding: 16px 14px;
  }
  .pagination-deck-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-bottom: 12px;
    margin-bottom: 12px;
  }
  .pagination-jump-form {
    width: 100%;
    justify-content: space-between;
  }
  .jump-input {
    flex: 1;
    max-width: 90px;
  }
  .pagination-list {
    gap: 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 2px 0;
    max-width: 100%;
    justify-content: center;
  }
  .pagination-link {
    min-width: 34px;
    height: 36px;
    padding: 0 8px;
    font-size: 12px;
  }
  .pagination-link .nav-text {
    display: none;
  }
  .pagination-link.nav-edge {
    padding: 0 6px;
  }
}

/* ==========================================================================
   14. HOMEPAGE HIGH-CONVERSION ENHANCEMENTS (2026 REFACTOR)
   ========================================================================== */

/* 14.1 Hero Interactive Project Switcher */
.hero-switcher-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  background: var(--neutral-50);
  padding: 4px;
  border-radius: var(--radius-control);
  border: 1px solid var(--neutral-100);
}
.hero-switcher-tab-btn {
  flex: 1;
  padding: 7px 10px;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--neutral-600);
  background: transparent;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-align: center;
}
.hero-switcher-tab-btn:hover {
  color: var(--green-600);
}
.hero-switcher-tab-btn.active {
  background: #FFFFFF;
  color: var(--green-600);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.hero-project-pane {
  display: none;
}
.hero-project-pane.active {
  display: block;
}
.hero-pane-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-control);
  overflow: hidden;
  margin-bottom: 14px;
  background: #E8EBE9;
}
.hero-pane-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-trust-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
  margin-bottom: 24px;
}
.hero-trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--green-50);
  border: 1px solid rgba(19, 110, 59, 0.2);
  border-radius: var(--radius-control);
  font-size: 12px;
  font-weight: 600;
  color: var(--green-600);
}

/* 14.2 Industrial Parks & Corporate Partners Showcase */
.partners-showcase-section {
  padding: 24px 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--neutral-100);
}
.partners-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 14px;
}
.partners-eyebrow {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--neutral-500);
}
.partners-badge-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.partner-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: var(--neutral-50);
  border: 1px solid var(--neutral-100);
  border-radius: var(--radius-control);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--neutral-700);
  transition: all 0.2s ease;
}
.partner-badge-item:hover {
  background: var(--green-50);
  border-color: var(--green-500);
  color: var(--green-600);
  transform: translateY(-2px);
}
.partner-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-500);
}

/* 14.3 Enhanced Project Cards (3 Columns with 16:9 Thumbnail) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 24px !important;
  margin-top: 32px;
}
.project-card {
  background: #FFFFFF;
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  overflow: hidden;
  padding: 0 !important;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(19, 110, 59, 0.12);
}
.project-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E8EBE9;
}
.project-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.project-card:hover .project-thumb-img {
  transform: scale(1.05);
}
.project-thumb-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 10px;
  border-radius: var(--radius-control);
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(19, 110, 59, 0.92);
  color: #FFFFFF;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2;
}
.project-thumb-badge.badge-water {
  background: rgba(15, 122, 153, 0.92);
}
.project-thumb-badge.badge-air {
  background: rgba(205, 30, 30, 0.92);
}
.project-body {
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.project-title {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 4px;
  line-height: 1.35;
  height: 44px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.project-location {
  font-size: 12.5px;
  color: var(--neutral-500);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.project-desc-short {
  font-size: 13px;
  line-height: 1.55;
  color: var(--neutral-700);
  margin-bottom: 14px;
  height: 60px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.project-card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 700;
  color: var(--green-500);
  text-decoration: none;
  transition: all 0.2s ease;
  padding-top: 10px;
  border-top: 1px solid var(--neutral-100);
}
.project-card-link:hover {
  color: var(--red-500);
  transform: translateX(3px);
}

/* 14.4 Contract Guarantee Seal in 4 Commitments */
.guarantee-contract-box {
  background: linear-gradient(135deg, var(--green-800) 0%, #0d4e2a 100%);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  margin-top: 28px;
  border: 1px solid rgba(127, 227, 176, 0.25);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #FFFFFF;
}
.guarantee-contract-info {
  display: flex;
  align-items: center;
  gap: 16px;
}
.guarantee-seal-icon {
  width: 52px;
  height: 52px;
  background: var(--red-500);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(233, 40, 37, 0.4);
}
.guarantee-contract-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 4px;
}
.guarantee-contract-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  line-height: 1.5;
}

/* 14.5 Latest Technical News Section on Homepage */
.home-news-section {
  padding: 64px 0;
  background: var(--neutral-50);
}
.home-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-top: 32px;
}
.home-news-card {
  background: #FFFFFF;
  border: 1px solid var(--neutral-100);
  border-top: 4px solid var(--green-500);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}
.home-news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(19, 110, 59, 0.12);
}
.home-news-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #E8EBE9;
}
.home-news-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.home-news-card:hover .home-news-thumb-img {
  transform: scale(1.05);
}
.home-news-thumb-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  border-radius: var(--radius-control);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: #FFFFFF;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.home-news-thumb-readtime {
  position: absolute;
  bottom: 8px;
  right: 8px;
  padding: 3px 8px;
  border-radius: var(--radius-control);
  font-size: 10.5px;
  font-family: var(--font-mono);
  background: rgba(14, 20, 16, 0.78);
  color: #FFFFFF;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2;
}
.home-news-body {
  padding: 18px 20px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.home-news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--neutral-500);
  margin-bottom: 8px;
}
.home-news-date {
  font-family: var(--font-mono);
}
.home-news-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  height: 45px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.home-news-title a {
  color: var(--neutral-900);
  text-decoration: none;
  transition: color 0.2s;
}
.home-news-title a:hover {
  color: var(--green-500);
}
.home-news-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--neutral-700);
  margin-bottom: 14px;
  height: 60px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.home-news-footer {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--neutral-100);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.home-news-author {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--green-600);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.home-news-readmore {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--green-500);
  text-decoration: none;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.home-news-readmore:hover {
  color: var(--red-500);
  transform: translateX(3px);
}
.home-news-cta-wrap {
  text-align: center;
  margin-top: 36px;
}
.btn-view-all-news {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-500);
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-control);
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.btn-view-all-news:hover {
  background: var(--green-600);
  transform: translateY(-2px);
}

/* 14.6 Social Proof & Testimonials Section */
.testimonials-section {
  padding: 64px 0;
  background: #FFFFFF;
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.testimonial-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-100);
  border-top: 3px solid var(--green-500);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
}
.testimonial-quote-icon {
  color: var(--green-500);
  opacity: 0.35;
  margin-bottom: 12px;
}
.testimonial-text {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--neutral-800);
  font-style: italic;
  margin-bottom: 20px;
  flex: 1;
}
.testimonial-author-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--neutral-200);
}
.testimonial-avatar {
  width: 42px;
  height: 42px;
  background: var(--green-500);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 14px;
  flex-shrink: 0;
}
.testimonial-name {
  font-weight: 700;
  font-size: 13.5px;
  color: var(--neutral-900);
}
.testimonial-role {
  font-size: 12px;
  color: var(--neutral-500);
}
.testimonial-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--green-600);
  font-weight: 600;
  margin-top: 2px;
}

/* 14.7 Workflow Connector Rail */
.workflow-grid {
  position: relative;
}
@media (min-width: 992px) {
  .workflow-grid::before {
    content: '';
    position: absolute;
    top: 34px;
    left: 40px;
    right: 40px;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--green-500) 0, var(--green-500) 8px, transparent 8px, transparent 16px);
    z-index: 1;
  }
  .workflow-card {
    position: relative;
    z-index: 2;
  }
}

/* Responsive Queries for Section 14 */
@media (max-width: 1024px) {
  .projects-grid,
  .home-news-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }
  .guarantee-contract-box {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 768px) {
  .projects-grid,
  .home-news-grid,
  .testimonials-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }
  .hero-switcher-tabs {
    flex-direction: column;
  }
  .partner-badge-list {
    gap: 6px;
  }
  .partner-badge-item {
    font-size: 11.5px;
    padding: 6px 12px;
  }
  .home-news-section,
  .testimonials-section {
    padding: 40px 0;
  }
}

/* =========================================================================
   15. CORE WEB VITALS & LAYOUT SHIFT (CLS/INP) OPTIMIZATIONS
   ========================================================================= */
/* Aspect-ratio preservation for all 16:9 thumbnails */
.hero-pane-img-wrap,
.project-thumb-wrap,
.home-news-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--neutral-50);
}

.hero-pane-img,
.project-thumb-img,
.home-news-thumb-img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* Defer rendering of deep below-the-fold content to optimize INP & main thread */
@supports (content-visibility: auto) {
  #du-an-tieu-bieu,
  #cam-ket-vang,
  #tin-tuc-chuyen-nganh,
  #danh-gia-khach-hang,
  .faq-section {
    content-visibility: auto;
    contain-intrinsic-size: 800px;
  }
}