/* ==========================================================================
   ANHONG MACHINERY - GLOBAL EXPORT LANDING PAGE STYLESHEET
   Heavy Machinery & Industrial Export Theme
   ========================================================================== */

:root {
  /* Core Color Palette - Industrial Slate & Safety Amber */
  --bg-main: #0a0e17;
  --bg-darker: #06090f;
  --bg-card: #121a2d;
  --bg-card-hover: #19243e;
  --bg-card-glass: rgba(18, 26, 45, 0.85);
  --bg-surface: #18233a;
  
  /* Primary Construction Accent (Caterpillar Gold / Amber) */
  --primary: #f59e0b;
  --primary-light: #fbbf24;
  --primary-dark: #d97706;
  --primary-glow: rgba(245, 158, 11, 0.35);
  --primary-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gold-metallic: linear-gradient(135deg, #ffe082 0%, #f59e0b 50%, #b45309 100%);

  /* Communication & Accent Colors */
  --accent-whatsapp: #25d366;
  --accent-whatsapp-dark: #128c7e;
  --accent-whatsapp-glow: rgba(37, 211, 102, 0.4);
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;

  /* Typography Colors */
  --text-white: #ffffff;
  --text-light: #f3f4f6;
  --text-sub: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Borders & Shadows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.15);
  --border-primary: rgba(245, 158, 11, 0.35);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.3);

  /* Layout & Sizing */
  --container-max: 1540px;
  --header-height: 80px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   CSS RESET & BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-light);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(245, 158, 11, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(37, 99, 235, 0.04) 0%, transparent 45%);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ==========================================================================
   BREATHING EFFECT ANIMATIONS (CRITICAL REQUIREMENT)
   ========================================================================== */
@keyframes breathing-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.65), 0 4px 18px rgba(245, 158, 11, 0.35);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(245, 158, 11, 0), 0 8px 30px rgba(245, 158, 11, 0.7);
    transform: scale(1.03);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0), 0 4px 18px rgba(245, 158, 11, 0.35);
    transform: scale(1);
  }
}

@keyframes breathing-whatsapp {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7), 0 4px 16px rgba(37, 211, 102, 0.4);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 13px rgba(37, 211, 102, 0), 0 6px 26px rgba(37, 211, 102, 0.7);
    transform: scale(1.035);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0), 0 4px 16px rgba(37, 211, 102, 0.4);
    transform: scale(1);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.15);
    opacity: 0.2;
  }
  100% {
    transform: scale(0.95);
    opacity: 0.8;
  }
}

@keyframes shimmer-sweep {
  0% { transform: translateX(-150%) rotate(25deg); }
  100% { transform: translateX(250%) rotate(25deg); }
}

.btn-breathing-primary {
  animation: breathing-pulse 2.8s infinite cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-breathing-primary:hover {
  animation: none;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.6);
}

.btn-breathing-whatsapp {
  animation: breathing-whatsapp 2.6s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-breathing-whatsapp:hover {
  animation: none;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.65);
}

/* ==========================================================================
   LAYOUT CONTAINERS & TYPOGRAPHY
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(18px, 4vw, 50px);
  padding-right: clamp(18px, 4vw, 50px);
}

.section {
  padding: clamp(60px, 8vw, 110px) 0;
  position: relative;
}

.section-darker {
  background-color: var(--bg-darker);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

/* Section Header Styling */
.section-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto clamp(36px, 5vw, 60px) auto;
  position: relative;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--primary-light);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-white);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-subtitle-zh {
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.section-desc {
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   BUTTONS & ACTIONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 14px 30px;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  text-align: center;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #0b0f17;
  border: 1px solid #fbbf24;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-white);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 16px var(--accent-whatsapp-glow);
}

.btn-whatsapp:hover {
  background: linear-gradient(135deg, #2ef176 0%, #17a999 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.5);
}

.btn-video {
  background: rgba(245, 158, 11, 0.12);
  color: var(--primary-light);
  border: 1px solid rgba(245, 158, 11, 0.4);
  font-size: 0.88rem;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.btn-video:hover {
  background: var(--primary);
  color: #0b0f17;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.btn-video-wa {
  background: rgba(37, 211, 102, 0.12);
  color: #25d366;
  border: 1px solid rgba(37, 211, 102, 0.4);
  font-size: 0.88rem;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-video-wa:hover {
  background: #25d366;
  color: #08110b;
  border-color: #25d366;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.45);
}

.btn-video-wa svg {
  flex-shrink: 0;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.08rem;
}

/* ==========================================================================
   NAVIGATION BAR (HEADER)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  background: rgba(10, 14, 23, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header.scrolled {
  height: 72px;
  background: rgba(6, 9, 15, 0.96);
  border-bottom-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.logo-img {
  height: 48px;
  width: auto;
  border-radius: var(--radius-sm);
  background: #ffffff;
  padding: 2px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name-en {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--text-white);
  line-height: 1.1;
}

.brand-name-zh {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.2vw, 20px);
  flex-shrink: 1;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-sub);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 32px;
  justify-content: center;
  cursor: pointer;
}

.nav-mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-white);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* Mobile menu is HIDDEN on desktop */
.nav-mobile-menu {
  display: none !important;
}

/* ==========================================================================
   SCREEN 1: HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 60px;
  overflow: hidden;
}

.hero-wrapper {
  position: relative;
  z-index: 3;
  width: 100%;
}

.hero-bg-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-slider {
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-picture img,
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.82) contrast(1.08) saturate(1.05);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, 
    rgba(10, 14, 23, 0.65) 0%, 
    rgba(10, 14, 23, 0.30) 45%, 
    rgba(10, 14, 23, 0.88) 100%),
    radial-gradient(ellipse at 30% 40%, rgba(10, 14, 23, 0.25) 0%, rgba(10, 14, 23, 0.7) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.45);
  color: var(--primary-light);
}

.hero-badge.live-indicator {
  background: rgba(37, 211, 102, 0.15);
  border-color: rgba(37, 211, 102, 0.45);
  color: #34d399;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-ring 2s infinite ease-in-out;
}

.hero-title {
  font-size: clamp(2.4rem, 4.6vw, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  color: var(--text-white);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.hero-title .highlight {
  color: var(--primary);
  text-shadow: 0 0 30px rgba(245, 158, 11, 0.45);
}

.hero-title-zh {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  color: var(--text-light);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-punchline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  color: var(--text-sub);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.punchline-sep {
  color: var(--primary);
}

.hero-punchline-zh {
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 24px;
}

.brand-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.brand-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-white);
  transition: all var(--transition-fast);
}

.brand-chip:hover {
  border-color: var(--primary);
  background: rgba(245, 158, 11, 0.15);
  color: var(--primary-light);
  transform: translateY(-2px);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 30px;
}

.hero-prompt-box {
  background: rgba(18, 26, 45, 0.7);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  backdrop-filter: blur(8px);
}

.prompt-en {
  font-size: 0.95rem;
  color: var(--text-white);
  font-weight: 500;
  margin-bottom: 4px;
}

.prompt-zh {
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* Hero Stats Box (Right Column) */
.hero-stats-card {
  background: var(--bg-card-glass);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3.5vw, 36px);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.hero-stats-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gradient);
}

.stats-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.stats-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 14px;
  transition: all var(--transition-normal);
}

.stat-item:hover {
  background: rgba(245, 158, 11, 0.08);
  border-color: var(--border-primary);
  transform: translateY(-3px);
}

.stat-num {
  font-size: clamp(1.6rem, 2.2vw, 2.1rem);
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label-en {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.25;
}

.stat-label-zh {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.stats-card-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-sub);
}

.feature-pill svg {
  color: var(--primary);
  flex-shrink: 0;
}

/* Quick Navigation Anchor Bar */
.hero-quick-anchors {
  margin-top: clamp(30px, 4vw, 50px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  position: relative;
  z-index: 3;
}

.anchor-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(18, 26, 45, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal);
}

.anchor-card:hover {
  background: rgba(24, 35, 58, 0.95);
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.anchor-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.anchor-text {
  display: flex;
  flex-direction: column;
}

.anchor-text-en {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-white);
}

.anchor-text-zh {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   PC IMAGE HOVER INTERACTIONS (CRITICAL REQUIREMENT)
   ========================================================================== */
.img-interactive-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: #000;
  cursor: pointer;
}

.img-interactive-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s cubic-bezier(0.16, 1, 0.3, 1), filter 0.65s ease;
  will-change: transform;
}

.img-interactive-wrap:hover img {
  transform: scale(1.08);
}

/* Metallic Light Sheen Swipe */
.img-interactive-wrap::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -70%;
  width: 50%;
  height: 220%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.22) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.img-interactive-wrap:hover::before {
  opacity: 1;
  animation: shimmer-sweep 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Overlay Specs Revealed on Hover */
.img-hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 14, 23, 0.1) 0%, rgba(10, 14, 23, 0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
  opacity: 0.85;
  transition: opacity var(--transition-normal);
  z-index: 3;
}

.img-interactive-wrap:hover .img-hover-overlay {
  opacity: 1;
}

.img-zoom-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(10, 14, 23, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(-8px);
  transition: all var(--transition-normal);
  z-index: 4;
}

.img-interactive-wrap:hover .img-zoom-btn {
  opacity: 1;
  transform: translateY(0);
}

.img-zoom-btn:hover {
  background: var(--primary);
  color: #0b0f17;
}

/* ==========================================================================
   TAB INTERACTIONS (SCREEN 2 & SCREEN 3)
   ========================================================================== */
.tabs-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(30px, 4vw, 45px);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-sub);
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.tab-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-2px);
}

.tab-btn.active {
  background: var(--primary-gradient);
  border-color: var(--primary-light);
  color: #0b0f17;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.tab-btn .tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.25);
  color: inherit;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   SCREEN 2: WEIGHT CLASS EXCAVATORS
   ========================================================================== */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 1.8vw, 24px);
}

.equipment-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.equipment-card:hover {
  border-color: var(--border-primary);
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 25px rgba(245, 158, 11, 0.15);
}

.card-img-holder {
  height: 230px;
  position: relative;
}

.card-badge-weight {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10, 14, 23, 0.85);
  border: 1px solid var(--border-primary);
  color: var(--primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 700;
  backdrop-filter: blur(4px);
  z-index: 3;
}

.card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.card-brand {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.05em;
}

.card-model {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.2;
}

.card-status {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.card-specs-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin: 12px 0 16px 0;
}

.spec-mini {
  display: flex;
  flex-direction: column;
}

.spec-mini-label {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.spec-mini-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-light);
}

.card-applications {
  margin-bottom: 20px;
  flex-grow: 1;
}

.app-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.app-tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-sub);
  font-size: 0.76rem;
  padding: 3px 8px;
  border-radius: 4px;
}

.card-footer-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
}

/* ==========================================================================
   SCREEN 3: POPULAR USED EXCAVATOR MODELS
   ========================================================================== */
.brand-models-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 2.5vw, 32px);
}

.model-card-detailed {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.model-card-detailed:hover {
  border-color: var(--border-primary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(245, 158, 11, 0.12);
}

.model-img-header {
  height: 240px;
  position: relative;
}

.model-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.model-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.brand-pill {
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--primary-light);
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.model-name {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--text-white);
  margin-bottom: 14px;
}

.model-app-box {
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 20px;
  border-left: 3px solid var(--primary);
}

.app-box-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.app-bullets {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-sub);
  line-height: 1.4;
}

.bullet-item svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.model-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: auto;
}

/* Other Brands Carousel Card */
.other-brands-banner {
  margin-top: 50px;
  background: linear-gradient(135deg, rgba(18, 26, 45, 0.9) 0%, rgba(24, 35, 58, 0.9) 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 36px);
  text-align: center;
}

.other-brands-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 6px;
}

.other-brands-sub {
  font-size: 0.92rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.brand-logos-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: clamp(16px, 3vw, 36px);
}

.brand-logo-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 24px;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-sub);
  letter-spacing: 0.06em;
  transition: all var(--transition-normal);
}

.brand-logo-pill:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--primary);
  color: var(--primary-light);
  transform: scale(1.05);
}

/* ==========================================================================
   SCREEN 4: HEAVY TRUCKS & CONSTRUCTION VEHICLES
   ========================================================================== */
.trucks-swiper-container {
  width: 100%;
  padding: 10px 0 50px 0;
  position: relative;
}

.truck-slide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.truck-slide-card:hover {
  border-color: var(--border-primary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.truck-img-wrap {
  height: 230px;
  position: relative;
}

.truck-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.truck-category {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.truck-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 8px;
}

.truck-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.truck-specs-mini {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-bottom: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

/* Swiper Controls Customization */
.swiper-pagination-bullet {
  background: var(--text-dim) !important;
  opacity: 0.6 !important;
  width: 10px !important;
  height: 10px !important;
  transition: all var(--transition-normal) !important;
}

.swiper-pagination-bullet-active {
  background: var(--primary) !important;
  opacity: 1 !important;
  width: 28px !important;
  border-radius: var(--radius-full) !important;
}

.swiper-btn-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(10, 14, 23, 0.85);
  border: 1px solid var(--border-light);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(8px);
}

.swiper-btn-nav:hover {
  background: var(--primary);
  color: #0b0f17;
  border-color: var(--primary);
}

.swiper-btn-prev { left: -24px; }
.swiper-btn-next { right: -24px; }

/* ==========================================================================
   SCREEN 5: REAL EXPORT WORKFLOW & YARD VIDEO
   ========================================================================== */
.workflow-stepper-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: clamp(40px, 5vw, 60px);
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  position: relative;
  transition: all var(--transition-normal);
}

.step-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  background: var(--bg-surface);
}

.step-card::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 800;
  z-index: 2;
}

.step-card:last-child::after {
  display: none;
}

.step-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
}

.step-title-en {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-white);
}

.step-title-zh {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Video & Export Showcase Grid */
.export-showcase-grid {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  gap: clamp(20px, 2.5vw, 36px);
  align-items: stretch;
}

.video-player-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.video-screen-wrap {
  position: relative;
  background: #000;
  height: clamp(320px, 40vw, 480px);
  width: 100%;
}

.video-screen-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-card-footer {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--bg-card-glass);
}

.video-info-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-white);
}

.video-info-sub {
  font-size: 0.85rem;
  color: var(--primary);
}

.export-gallery-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.export-mini-item {
  position: relative;
  height: 255px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.export-mini-item:hover {
  border-color: var(--border-primary);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), 0 0 20px rgba(245, 158, 11, 0.15);
}

.export-mini-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.export-mini-item:hover img {
  transform: scale(1.08);
}

.export-mini-tag {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 23, 0.92) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  padding: 18px 14px 10px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  backdrop-filter: blur(4px);
}

/* ==========================================================================
   SCREEN 6: INVENTORY SPECIFICATION COMPARISON TABLE
   ========================================================================== */
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.table-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-pill {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-sub);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover, .filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #0b0f17;
}

.table-search-box {
  position: relative;
  width: 280px;
}

.table-search-box input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 9px 18px 9px 40px;
  color: var(--text-white);
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.table-search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.25);
}

.table-search-box svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

.specs-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 860px;
}

.specs-table th {
  background: rgba(24, 35, 58, 0.95);
  color: var(--text-light);
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 20px;
  border-bottom: 2px solid var(--border-primary);
}

.specs-table td {
  padding: 16px 20px;
  font-size: 0.92rem;
  color: var(--text-sub);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.specs-table tbody tr {
  transition: background var(--transition-fast);
}

.specs-table tbody tr:hover {
  background: rgba(245, 158, 11, 0.06);
}

.brand-cell {
  font-weight: 800;
  color: var(--text-white);
}

.brand-cell span {
  display: block;
  font-size: 0.76rem;
  color: var(--primary);
  font-weight: 600;
}

.model-cell {
  font-weight: 800;
  color: var(--primary-light);
  font-size: 1.05rem;
}

.table-disclaimer {
  margin-top: 18px;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--text-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   SCREEN 7: REMOTE INSPECTION ASSURANCE (01 - 08)
   ========================================================================== */
.inspection-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2.5vw, 24px);
  margin-bottom: 40px;
}

.inspection-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.inspection-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.inspection-img-box {
  height: 185px;
  position: relative;
}

.inspection-card-body {
  padding: 16px;
  flex-grow: 1;
}

.inspection-num {
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
}

.inspection-name-en {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.25;
}

.inspection-name-zh {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.inspection-banner-cta {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(18, 26, 45, 0.9) 100%);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 36px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.cta-statement-en {
  font-size: clamp(1.3rem, 2.2vw, 1.9rem);
  font-weight: 900;
  color: var(--text-white);
  line-height: 1.2;
}

.cta-statement-zh {
  font-size: clamp(0.95rem, 1.4vw, 1.2rem);
  color: var(--primary);
  font-weight: 700;
  margin-top: 4px;
}

/* ==========================================================================
   SCREEN 8: 5-STEP PURCHASE PROCESS
   ========================================================================== */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.process-card:hover {
  border-color: var(--primary);
  background: var(--bg-surface);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.process-step-badge {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.12);
  border: 2px solid var(--primary);
  color: var(--primary-light);
  font-size: 1.25rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.2);
}

.process-title-en {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.process-desc-zh {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   SCREEN 9: ABOUT US & CREDENTIALS
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(30px, 5vw, 60px);
  align-items: center;
}

.about-text-col {
  display: flex;
  flex-direction: column;
}

.about-headline-en {
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.25;
  margin-bottom: 6px;
}

.about-headline-zh {
  font-size: 1.15rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 20px;
}

.about-body-en {
  font-size: 0.98rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-body-zh {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 16px;
  border-left: 2px solid var(--border-light);
  margin-bottom: 26px;
}

.about-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.about-media-col {
  position: relative;
}

.license-preview-card {
  background: var(--bg-card);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.7);
  cursor: pointer;
  position: relative;
}

.license-preview-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #0a0e17;
  display: block;
  transition: transform 0.6s ease;
}

.license-preview-card:hover img {
  transform: scale(1.04);
}

.license-tag-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 23, 0.95) 100%);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.license-tag-text {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-white);
}

.license-tag-sub {
  font-size: 0.78rem;
  color: var(--primary);
}

/* ==========================================================================
   SCREEN 10: 24/7 AFTER-SALES SUPPORT
   ========================================================================== */
.support-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.support-pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 40px) 28px;
  text-align: center;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.support-pillar-card:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), 0 0 25px rgba(245, 158, 11, 0.15);
}

.pillar-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.pillar-title-en {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 6px;
}

.pillar-title-zh {
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 16px;
}

.pillar-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   SCREEN 11: LEAD GENERATION INQUIRY FORM
   ========================================================================== */
.inquiry-section {
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-darker) 100%);
  position: relative;
}

.inquiry-card {
  background: var(--bg-card-glass);
  border: 2px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 55px);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(245, 158, 11, 0.2);
  max-width: 980px;
  margin: 0 auto;
}

.inquiry-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-label span {
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 600;
}

.form-control {
  background: rgba(10, 14, 23, 0.75);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 13px 18px;
  color: var(--text-white);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  background: rgba(10, 14, 23, 0.95);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.3);
}

.form-control::placeholder {
  color: var(--text-dim);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f59e0b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 42px;
}

textarea.form-control {
  resize: vertical;
  min-height: 95px;
}

.form-submit-row {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.form-privacy-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #05070d;
  border-top: 1px solid var(--border-subtle);
  padding: clamp(50px, 7vw, 85px) 0 30px 0;
  color: var(--text-muted);
}

.footer-main-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: clamp(24px, 4vw, 45px);
  margin-bottom: 50px;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo-img {
  height: 44px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 2px;
}

.footer-brand-desc-en {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 4px;
}

.footer-brand-desc-sub {
  font-size: 0.84rem;
  color: var(--primary);
  margin-bottom: 14px;
}

.footer-brand-text {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-dim);
}

.footer-col-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-links-list a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.45;
}

.contact-item svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom-row {
  border-top: 1px solid var(--border-subtle);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-legal-links {
  display: flex;
  gap: 16px;
}

.footer-legal-links a:hover {
  color: var(--primary);
}

/* ==========================================================================
   PC FIXED RIGHT-SIDE TOOLBAR (CRITICAL REQUIREMENT)
   ========================================================================== */
.pc-fixed-sidebar {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 990;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pc-dock-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(18, 26, 45, 0.92);
  border: 1px solid var(--border-light);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-normal);
}

.pc-dock-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #0b0f17;
  transform: translateX(-4px) scale(1.05);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.pc-dock-btn.dock-whatsapp {
  background: #25d366;
  color: #ffffff;
  border-color: #25d366;
}

.pc-dock-btn.dock-whatsapp:hover {
  background: #2ef176;
  transform: translateX(-4px) scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* Tooltip on Hover */
.pc-dock-btn .dock-tooltip {
  position: absolute;
  right: 58px;
  background: rgba(10, 14, 23, 0.95);
  border: 1px solid var(--border-primary);
  color: var(--text-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(8px);
  transition: all var(--transition-fast);
  box-shadow: 0 4px 15px rgba(0,0,0,0.6);
}

.pc-dock-btn:hover .dock-tooltip {
  opacity: 1;
  transform: translateX(0);
}

#btnBackToTop {
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

#btnBackToTop.visible {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   MOBILE FIXED BOTTOM BAR (CRITICAL REQUIREMENT)
   ========================================================================== */
.mobile-fixed-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: rgba(10, 14, 23, 0.96);
  border-top: 1px solid rgba(245, 158, 11, 0.35);
  backdrop-filter: blur(14px);
  z-index: 1000;
  padding: 8px 14px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.7);
}

.mobile-bar-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  gap: 8px;
  height: 100%;
}

.mobile-bar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  height: 100%;
  text-align: center;
}

.mobile-bar-whatsapp {
  background: #25d366;
  color: #fff;
  border: 1px solid #20ba5a;
}

.mobile-bar-email {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-light);
  color: var(--text-white);
}

.mobile-bar-quote {
  background: var(--primary-gradient);
  color: #0b0f17;
  font-weight: 800;
}

/* ==========================================================================
   MODALS (VIDEO PLAYER & IMAGE LIGHTBOX & LICENSE)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  max-width: 920px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  position: relative;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(245, 158, 11, 0.2);
  transform: scale(0.94);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.modal-backdrop.active .modal-container {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(10, 14, 23, 0.8);
  border: 1px solid var(--border-light);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--primary);
  color: #0b0f17;
}

.modal-video-box {
  background: #000;
  width: 100%;
  height: clamp(280px, 50vw, 520px);
}

.modal-video-box video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.modal-content-details {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--bg-surface);
}

/* Lightbox Image */
.lightbox-img-box {
  width: 100%;
  height: clamp(300px, 60vh, 650px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  padding: 10px;
}

.lightbox-img-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1440px) {
  .nav-links {
    gap: clamp(8px, 1vw, 15px);
  }
  .nav-link {
    font-size: 0.86rem;
  }
  .brand-name-en {
    font-size: 1.15rem;
  }
  .brand-name-zh {
    font-size: 0.72rem;
  }
}

@media (max-width: 1200px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-stats-card {
    max-width: 650px;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .export-showcase-grid {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
  }

  .nav-links {
    gap: 8px;
  }

  .nav-link {
    font-size: 0.82rem;
  }

  .nav-actions {
    gap: 8px;
  }

  .nav-actions .btn-sm {
    padding: 7px 12px;
    font-size: 0.82rem;
  }

  .equipment-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .brand-models-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-main-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .equipment-grid, .brand-models-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  .hero-quick-anchors {
    grid-template-columns: repeat(2, 1fr);
  }

  .workflow-stepper-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .step-card::after {
    display: none;
  }

  .inspection-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .support-pillars-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  body {
    padding-bottom: 70px; /* Space for mobile bottom bar */
  }

  .pc-fixed-sidebar {
    display: none; /* Hide PC sidebar on mobile */
  }

  .mobile-fixed-bottom-bar {
    display: block; /* Show mobile bar */
  }

  .nav-links, .nav-actions .btn {
    display: none;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .nav-mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.98);
    border-bottom: 1px solid var(--border-primary);
    padding: 20px;
    display: none;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
  }

  .nav-mobile-menu.active {
    display: flex !important;
  }

  .nav-mobile-menu .nav-link {
    font-size: 1.1rem;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
  }

  .hero-section {
    padding-top: calc(var(--header-height) + 20px);
    padding-bottom: 40px;
    min-height: auto;
  }

  .hero-picture img,
  .hero-slide img {
    object-position: center 20%;
    filter: brightness(0.85) contrast(1.08) saturate(1.08);
  }

  .hero-overlay {
    background: linear-gradient(180deg, 
      rgba(10, 14, 23, 0.60) 0%, 
      rgba(10, 14, 23, 0.35) 25%, 
      rgba(10, 14, 23, 0.65) 60%, 
      rgba(10, 14, 23, 0.95) 100%);
  }

  .hero-stats-card .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-quick-anchors {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

  .inquiry-form-grid {
    grid-template-columns: 1fr;
  }

  .footer-main-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom-row {
    flex-direction: column;
    text-align: center;
  }

  .footer-legal-links {
    justify-content: center;
  }

  .inspection-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .inspection-img-box {
    height: clamp(230px, 62vw, 290px);
  }

  .inspection-banner-cta {
    flex-direction: column;
    text-align: center;
  }

  .swiper-btn-nav {
    display: none;
  }
}