/* ========================
   CSS Variables
   ======================== */
:root {
  --blue-dark:    #003366;
  --blue-mid:     #0052A3;
  --blue-light:   #0066CC;
  --blue-pale:    #3399FF;
  --yellow:       #FFB90F;
  --yellow-light: #FFA500;
  --red:          #E63946;
  --red-light:    #FF6B6B;
  --text-dark:    #333333;
  --text-mid:     #666666;
  --text-light:   #999999;
  --bg-white:     #FFFFFF;
  --bg-pale:      #F0F4F8;
  --bg-paler:     #F8FAFC;
  --border:       #E0E8F0;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;

  --sp-xs:  8px;
  --sp-sm:  16px;
  --sp-md:  24px;
  --sp-lg:  40px;
  --sp-xl:  60px;
  --sp-xxl: 80px;

  --max-w: 1200px;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0,51,102,0.10);
  --shadow-hover: 0 8px 32px rgba(0,51,102,0.18);
  --transition: 0.3s ease;
}

/* ========================
   Reset & Base
   ======================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

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

.section-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: var(--sp-sm);
}
.section-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--blue-dark);
  margin-bottom: var(--sp-sm);
}
.section-desc {
  font-size: 19px;
  color: var(--text-mid);
  max-width: 640px;
  line-height: 1.8;
}
.section-header { margin-bottom: var(--sp-lg); }
.section-header.center { text-align: center; }
.section-header.center .section-desc { margin: 0 auto; }

/* ========================
   Header / Navigation
   ======================== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: #ffffff;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--blue-dark);
  box-shadow: 0 2px 12px rgba(0,51,102,0.10);
  transition: background var(--transition), box-shadow var(--transition);
}
#header.scrolled {
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0,51,102,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  flex-shrink: 0;
}
.logo-link img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

/* Desktop Nav */
.nav-desktop { display: flex; align-items: center; gap: 4px; }
.nav-desktop a {
  display: block;
  padding: 8px 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--blue-dark);
  border-radius: 6px;
  letter-spacing: 0.3px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--blue-light);
  background: rgba(0,102,204,0.08);
}

/* Nav CTA */
.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  flex-shrink: 0;
}
.btn-quote {
  padding: 9px 22px;
  background: var(--yellow);
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 700;
  border-radius: 6px;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-quote:hover { background: var(--yellow-light); transform: translateY(-1px); }

/* Hamburger */
#menuToggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px; height: 40px;
  gap: 5px;
  border-radius: 6px;
  transition: background var(--transition);
}
#menuToggle:hover { background: rgba(0,51,102,0.08); }
#menuToggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--blue-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
#menuToggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#menuToggle.open span:nth-child(2) { opacity: 0; }
#menuToggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Drawer */
#navDrawer {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: var(--blue-dark);
  border-bottom: 2px solid var(--yellow);
  padding: var(--sp-md) 20px;
  z-index: 999;
  transform: translateY(-10px);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
}
#navDrawer.open {
  transform: translateY(0);
  opacity: 1;
}
#navDrawer a {
  display: block;
  padding: 12px 0;
  font-size: 16px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color var(--transition);
}
#navDrawer a:last-child { border-bottom: none; }
#navDrawer a:hover { color: var(--yellow); }

/* ========================
   Hero Banner
   ======================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(0, 31, 63, 0.88) 0%,
    rgba(0, 51, 102, 0.72) 50%,
    rgba(0, 82, 163, 0.40) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 120px 0 80px;
  max-width: 700px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,185,15,0.15);
  border: 1px solid rgba(255,185,15,0.4);
  border-radius: 30px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}
.hero-tag i { font-size: 11px; }
.hero-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.10;
  color: #fff;
  margin-bottom: var(--sp-md);
  letter-spacing: -0.5px;
}
.hero-title span { color: var(--yellow); }
.hero-desc {
  font-size: 20px;
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--sp-lg);
  line-height: 1.75;
  max-width: 560px;
}
.hero-actions { display: flex; gap: var(--sp-sm); flex-wrap: wrap; margin-bottom: var(--sp-xl); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--yellow);
  color: var(--blue-dark);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--yellow-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,185,15,0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-secondary:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.10);
  transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  gap: var(--sp-lg);
  flex-wrap: wrap;
}
.stat-item { text-align: left; }
.stat-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--yellow);
  line-height: 1;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.70);
  margin-top: 4px;
  letter-spacing: 0.5px;
}

/* ========================
   Product Parameters Table
   ======================== */
#product-specs {
  padding: var(--sp-xl) 0;
  background: var(--bg-white);
}
.specs-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.specs-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  font-size: 14px;
}
.specs-table thead tr {
  background: var(--blue-dark);
  color: #fff;
}
.specs-table thead th {
  padding: 14px 12px;
  text-align: center;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.3px;
  white-space: nowrap;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.specs-table thead th:first-child { text-align: left; padding-left: 20px; }
.specs-table thead th.highlight { background: var(--yellow); color: var(--blue-dark); }
.specs-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.specs-table tbody tr:nth-child(even) { background: var(--bg-pale); }
.specs-table tbody tr:hover { background: #e8f1ff; }
.specs-table tbody td {
  padding: 12px 12px;
  text-align: center;
  color: var(--text-dark);
  border-right: 1px solid var(--border);
  white-space: nowrap;
}
.specs-table tbody td:first-child {
  text-align: left;
  padding-left: 20px;
  font-weight: 700;
  color: var(--blue-dark);
}
.model-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--blue-dark);
  color: #fff;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
}
.specs-note {
  font-size: 13px;
  color: var(--text-mid);
  margin-top: var(--sp-sm);
  padding: 0 4px;
}

/* ========================
   Products Grid
   ======================== */
#products {
  padding: var(--sp-xl) 0;
  background: var(--bg-pale);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}
.product-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.product-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-pale);
}
.product-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.06); }
.product-card-badge {
  position: absolute;
  top: 12px; left: 12px;
  padding: 4px 10px;
  background: var(--blue-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 4px;
}
.product-card-body {
  padding: var(--sp-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--blue-dark);
  margin-bottom: 6px;
}
.product-card-energy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--yellow-light);
  background: #fff8e6;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: var(--sp-sm);
}
.product-card-params {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.9;
  flex: 1;
}
.product-card-params span { display: block; }
.product-card-params strong { color: var(--text-dark); }
.product-card-footer {
  padding: 0 var(--sp-md) var(--sp-md);
}
.btn-learn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  background: var(--bg-pale);
  color: var(--blue-mid);
  font-size: 14px;
  font-weight: 700;
  border-radius: 6px;
  width: 100%;
  transition: background var(--transition), color var(--transition);
}
.btn-learn:hover {
  background: var(--blue-dark);
  color: var(--yellow);
}

/* ========================
   Applications
   ======================== */
#applications {
  padding: var(--sp-xl) 0;
  background: var(--bg-white);
}
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}
.app-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.app-card-bg { position: absolute; inset: 0; }
.app-card-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.app-card:hover .app-card-bg img { transform: scale(1.08); }
.app-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,31,63,0.88) 0%, rgba(0,51,102,0.30) 60%, transparent 100%);
  transition: background var(--transition);
}
.app-card:hover .app-card-overlay {
  background: linear-gradient(0deg, rgba(0,31,63,0.95) 0%, rgba(0,51,102,0.55) 70%, transparent 100%);
}
.app-card-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-md);
}
.app-card-icon {
  width: 44px; height: 44px;
  background: var(--yellow);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--blue-dark);
  margin-bottom: 10px;
  transition: transform var(--transition);
}
.app-card:hover .app-card-icon { transform: scale(1.1); }
.app-card-title {
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.3;
}
.app-card-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.80);
  line-height: 1.6;
  transform: translateY(4px);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
}
.app-card:hover .app-card-desc {
  transform: translateY(0);
  opacity: 1;
}
.app-card-models {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.app-model-tag {
  padding: 2px 8px;
  background: rgba(255,185,15,0.25);
  border: 1px solid rgba(255,185,15,0.5);
  color: var(--yellow);
  font-size: 11px;
  font-weight: 700;
  border-radius: 3px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition), transform var(--transition);
}
.app-card:hover .app-model-tag {
  opacity: 1;
  transform: translateY(0);
}

/* ========================
   Company Strength
   ======================== */
#strength {
  padding: var(--sp-xl) 0;
  background: var(--blue-dark);
  position: relative;
  overflow: hidden;
}
.strength-bg-pattern {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.06;
}
.strength-bg-pattern img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.strength-inner {
  position: relative;
  z-index: 1;
}
.strength-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl);
  align-items: center;
}
.strength-left .section-label { color: var(--yellow); }
.strength-left .section-title { color: #fff; }
.strength-left .section-desc { color: rgba(255,255,255,0.75); max-width: 500px; }

.strength-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
}
.strength-item {
  display: flex;
  gap: var(--sp-md);
  align-items: flex-start;
}
.strength-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(255,185,15,0.15);
  border: 1px solid rgba(255,185,15,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--yellow);
  flex-shrink: 0;
}
.strength-item-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.strength-item-text p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}

.strength-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-md);
}
.strength-stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: var(--sp-md) var(--sp-lg);
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
.strength-stat-card:hover {
  background: rgba(255,185,15,0.10);
  border-color: rgba(255,185,15,0.3);
}
.strength-stat-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 8px;
}
.strength-stat-unit {
  font-size: 20px;
  font-weight: 700;
}
.strength-stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}

/* ========================
   Project Cases
   ======================== */
#projects {
  padding: var(--sp-xl) 0;
  background: var(--bg-pale);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}
.project-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}
.project-card-bg { position: absolute; inset: 0; }
.project-card-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-card-bg img { transform: scale(1.08); }
.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,31,63,0.92) 0%, rgba(0,51,102,0.35) 55%, transparent 100%);
}
.project-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--sp-md);
}
.project-country {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--yellow);
  margin-bottom: 6px;
}
.project-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 8px;
}
.project-meta {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}
.project-tag {
  padding: 3px 8px;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.85);
  font-size: 11px;
  border-radius: 4px;
}

/* ========================
   Video Section
   ======================== */
#videos {
  padding: var(--sp-xl) 0;
  background: var(--bg-white);
}
.videos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
}
.video-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--blue-dark);
  transition: transform var(--transition), box-shadow var(--transition);
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  cursor: pointer;
}
.video-thumb-bg { position: absolute; inset: 0; }
.video-thumb-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb-bg img { transform: scale(1.05); }
.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,31,63,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.video-card:hover .video-play-overlay { background: rgba(0,31,63,0.55); }
.play-btn {
  width: 64px; height: 64px;
  background: var(--yellow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--blue-dark);
  padding-left: 4px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}
.video-card:hover .play-btn {
  transform: scale(1.12);
  box-shadow: 0 6px 28px rgba(255,185,15,0.5);
}
.video-duration {
  position: absolute;
  bottom: 10px; right: 12px;
  background: rgba(0,0,0,0.65);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info {
  padding: var(--sp-md);
}
.video-cat {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--yellow);
  margin-bottom: 6px;
}
.video-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 8px;
}
.video-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.60);
  line-height: 1.6;
}

/* ========================
   Company Vision
   ======================== */
#vision {
  padding: var(--sp-xl) 0;
}
.vision-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.vision-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
}
#vision {
  position: relative;
  overflow: hidden;
}
.vision-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.vision-inner {
  position: relative;
  z-index: 2;
}
.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}
.vision-card {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: var(--sp-lg) var(--sp-md);
  text-align: center;
  border-top: 4px solid var(--blue-light);
  box-shadow: var(--shadow);
  transition: transform var(--transition), border-color var(--transition);
}
.vision-card:hover { transform: translateY(-6px); border-top-color: var(--yellow); }
.vision-icon {
  width: 60px; height: 60px;
  background: var(--blue-dark);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  color: var(--yellow);
  margin: 0 auto var(--sp-md);
}
.vision-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--blue-dark);
  margin-bottom: var(--sp-sm);
}
.vision-card p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ========================
   CTA Section
   ======================== */
#cta {
  padding: var(--sp-xl) 0;
  position: relative;
  overflow: hidden;
  background: var(--blue-dark);
}
.cta-bg { position: absolute; inset: 0; z-index: 0; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; }
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,31,63,0.96) 0%, rgba(0,51,102,0.90) 100%);
  z-index: 1;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.cta-inner .section-label { color: var(--yellow); }
.cta-inner .section-title { color: #fff; font-size: 40px; }
.cta-inner .section-desc { color: rgba(255,255,255,0.78); margin: 0 auto var(--sp-lg); }
.cta-actions {
  display: flex;
  gap: var(--sp-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-lg);
}
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: #25D366;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.btn-whatsapp:hover { background: #20be5b; transform: translateY(-2px); }
.btn-email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-email:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }
.cta-trust {
  display: flex;
  gap: var(--sp-lg);
  justify-content: center;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.70);
}
.trust-item i { color: var(--yellow); font-size: 16px; }

/* ========================
   Footer
   ======================== */
#footer {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 50%, #90caf9 100%);
  padding: var(--sp-xl) 0 var(--sp-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-xl);
  padding-bottom: var(--sp-xl);
  border-bottom: 1px solid rgba(0,51,102,0.15);
}
.footer-brand img {
  height: 40px;
  width: auto;
  margin-bottom: var(--sp-md);
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.75;
  margin-bottom: var(--sp-md);
}
.footer-social {
  display: flex;
  gap: var(--sp-xs);
}
.social-btn {
  width: 36px; height: 36px;
  background: rgba(0,51,102,0.10);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue-dark);
  font-size: 15px;
  transition: background var(--transition), color var(--transition);
}
.social-btn:hover { background: var(--blue-dark); color: var(--yellow); }

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #000000;
  margin-bottom: var(--sp-md);
  letter-spacing: 0.5px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 14px;
  font-weight: 700;
  color: #000000;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a:hover { color: var(--blue-light); }
.footer-col ul li a i { font-size: 12px; width: 14px; color: var(--blue-light); }

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #000000;
  line-height: 1.6;
  margin-bottom: 12px;
}
.footer-contact li i { color: var(--blue-light); margin-top: 3px; flex-shrink: 0; width: 14px; }

.footer-brand p {
  font-size: 14px;
  font-weight: 700;
  color: #000000;
  line-height: 1.75;
  margin-bottom: var(--sp-md);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--sp-md);
  flex-wrap: wrap;
  gap: var(--sp-sm);
}
.footer-bottom p {
  font-size: 13px;
  font-weight: 700;
  color: #000000;
}
.footer-bottom a { color: #000000; font-weight: 700; transition: color var(--transition); }
.footer-bottom a:hover { color: var(--blue-dark); }

/* ========================
   Video Modal
   ======================== */
#videoModal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.88);
  align-items: center;
  justify-content: center;
}
#videoModal.active { display: flex; }
.modal-inner {
  position: relative;
  width: 90vw;
  max-width: 900px;
}
.modal-close {
  position: absolute;
  top: -44px; right: 0;
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  transition: background var(--transition);
}
.modal-close:hover { background: var(--red); }
.modal-video {
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}
.modal-video iframe {
  width: 100%; height: 100%;
  border: none;
}

/* ========================
   Scroll To Top
   ======================== */
#scrollTop {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--yellow);
  color: var(--blue-dark);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  cursor: pointer;
  z-index: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  pointer-events: none;
}
#scrollTop.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
#scrollTop:hover { background: var(--yellow-light); }

/* ========================
   Utility
   ======================== */
.mt-lg { margin-top: var(--sp-lg); }
.text-center { text-align: center; }
.view-all-wrap { text-align: center; margin-top: var(--sp-lg); }
.btn-view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border: 2px solid var(--blue-dark);
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn-view-all:hover {
  background: var(--blue-dark);
  color: var(--yellow);
  transform: translateY(-2px);
}

/* ========================
   Responsive — Tablet 640–1024px
   ======================== */
@media (max-width: 1024px) {
  .section-title { font-size: 36px; }
  .hero-title { font-size: 50px; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .strength-grid { grid-template-columns: 1fr; gap: var(--sp-xl); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-lg); }
  .nav-desktop { display: none; }
  .nav-cta { display: none; }
  #menuToggle { display: flex; }
  #navDrawer { display: block; }
}

@media (max-width: 768px) {
  .vision-grid { grid-template-columns: 1fr 1fr; }
  .videos-grid { grid-template-columns: 1fr; }
  .strength-stats { grid-template-columns: 1fr 1fr; }
}

/* ========================
   Responsive — Mobile < 640px
   ======================== */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section-title { font-size: 30px; }
  .hero-title { font-size: 38px; }
  .hero-desc { font-size: 18px; }
  .hero-stats { gap: var(--sp-md); }
  .stat-num { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-secondary { justify-content: center; }
  .products-grid { grid-template-columns: 1fr; }
  .apps-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .vision-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-inner .section-title { font-size: 32px; }
  .strength-stats { grid-template-columns: 1fr 1fr; }
  .strength-stat-num { font-size: 40px; }
  .specs-table { font-size: 14px; }
  body { font-size: 17px; }
}

/* ========================
   Animations
   ======================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-fade-up {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}
.animate-fade-up.delay-1 { animation-delay: 0.15s; }
.animate-fade-up.delay-2 { animation-delay: 0.30s; }
.animate-fade-up.delay-3 { animation-delay: 0.45s; }
.animate-fade-up.delay-4 { animation-delay: 0.60s; }

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}