/* ========================================
   洛希尔国际官网 - 全局样式 v2
   Grand Infrastructure & Trust 设计风格
   ======================================== */

/* ===========================================
   ANIMATION KEYFRAMES - 入场交互动效
   =========================================== */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-left {
  from { opacity: 0; transform: translateX(-50px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fade-right {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(80px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes reveal-up {
  from { opacity: 0; transform: translateY(60px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 0; }
}
@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(249,115,22,0.3); }
  50% { box-shadow: 0 0 40px rgba(249,115,22,0.6); }
}
@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Animation Classes */
@keyframes anim-fallback-opaque { to { opacity: 1 !important; transform: none !important; } }
.animate-on-scroll {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  animation: anim-fallback-opaque 0s cubic-bezier(0,0,0.2,1) 1.5s forwards;
}
.animate-on-scroll.visible {
  opacity: 1;
  animation: none;
}

/* Fade Up */
.animate-on-scroll.effect-fade-up { transform: translateY(40px); }
.animate-on-scroll.effect-fade-up.visible { transform: translateY(0); }

/* Fade Left */
.animate-on-scroll.effect-fade-left { transform: translateX(-50px); }
.animate-on-scroll.effect-fade-left.visible { transform: translateX(0); }

/* Fade Right */
.animate-on-scroll.effect-fade-right { transform: translateX(50px); }
.animate-on-scroll.effect-fade-right.visible { transform: translateX(0); }

/* Scale In */
.animate-on-scroll.effect-scale { transform: scale(0.9); }
.animate-on-scroll.effect-scale.visible { transform: scale(1); }

/* Slide Up */
.animate-on-scroll.effect-slide-up { transform: translateY(80px); }
.animate-on-scroll.effect-slide-up.visible { transform: translateY(0); }

/* Reveal Up */
.animate-on-scroll.effect-reveal { transform: translateY(60px) scale(0.95); }
.animate-on-scroll.effect-reveal.visible { transform: translateY(0) scale(1); }

/* Stagger Delays */
.stagger-1 { transition-delay: 0.1s !important; }
.stagger-2 { transition-delay: 0.2s !important; }
.stagger-3 { transition-delay: 0.3s !important; }
.stagger-4 { transition-delay: 0.4s !important; }
.stagger-5 { transition-delay: 0.5s !important; }
.stagger-6 { transition-delay: 0.6s !important; }
.stagger-7 { transition-delay: 0.7s !important; }
.stagger-8 { transition-delay: 0.8s !important; }

/* Legacy Animation Classes (保持兼容) */
.fade-in, .fade-in-left, .fade-in-right, .scale-in {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  animation: anim-fallback-opaque 0s cubic-bezier(0,0,0.2,1) 1.5s forwards;
}
.fade-in { transform: translateY(30px); }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-left { transform: translateX(-40px); }
.fade-in-left.visible { opacity: 1; transform: translateX(0); }
.fade-in-right { transform: translateX(40px); }
.fade-in-right.visible { opacity: 1; transform: translateX(0); }
.scale-in { transform: scale(0.92); }
.scale-in.visible { opacity: 1; transform: scale(1); }

/* Legacy Delay Classes */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.15s !important; }
.delay-3 { transition-delay: 0.2s !important; }
.delay-4 { transition-delay: 0.25s !important; }
.delay-5 { transition-delay: 0.3s !important; }
.delay-6 { transition-delay: 0.35s !important; }
.delay-7 { transition-delay: 0.4s !important; }
.delay-8 { transition-delay: 0.45s !important; }

:root {
  --primary-dark: #0B1D35;
  --brand-blue: #1A56DB;
  --accent-blue: #3B82F6;
  --cta-orange: #F97316;
  --cta-orange-hover: #EA580C;
  --text-dark: #1F2937;
  --text-secondary: #6B7280;
  --border-light: #E5E7EB;
  --bg-white: #FFFFFF;
  --bg-light: #F3F4F6;
  --hero-overlay: rgba(11, 29, 53, 0.65);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --container-max: 1280px;
  --section-padding: 120px;
  --section-padding-mobile: 72px;
  --nav-height: 100px;
  --transition: all 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  font-size: 1rem; line-height: 1.6; color: var(--text-dark);
  background-color: var(--bg-white); overflow-x: hidden;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
p { margin-bottom: 1rem; }
.text-large { font-size: 1.125rem; }
.text-small { font-size: 0.875rem; }
.text-caption { font-size: 0.75rem; }
.text-secondary { color: var(--text-secondary); }
.text-white { color: #fff; }
.text-center { text-align: center; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-padding) 0; }
.section-light { background-color: var(--bg-white); }
.section-gray { background-color: var(--bg-light); }
.section-dark { background-color: var(--primary-dark); color: #fff; }

/* --- NAVBAR --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height);
  z-index: 1000; transition: var(--transition); background: transparent;
}
.navbar.scrolled { background-color: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); box-shadow: 0 2px 20px rgba(0,0,0,0.15); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.navbar-brand { display: flex; align-items: center; gap: 12px; font-size: 1.5rem; font-weight: 700; color: #fff; }
.navbar-brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--cta-orange), var(--brand-blue));
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.25rem; color: #fff;
}
.navbar-logo {
  height: 65px;
  width: auto;
  transition: var(--transition);
}
.navbar.scrolled .navbar-logo {
  filter: none;
}
.navbar-nav { display: flex; align-items: center; gap: 20px; flex: 1; justify-content: center; min-width: 0; }
.navbar-nav a {
  color: var(--text-dark); font-weight: 500; font-size: 1.05rem;
  position: relative; padding: 4px 0; letter-spacing: 0.02em;
}
.navbar-nav a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
  background-color: var(--cta-orange); transition: width 0.3s ease;
}
.navbar-nav a:hover, .navbar-nav a.active { color: var(--brand-blue); }
.navbar-nav a:hover::after, .navbar-nav a.active::after { width: 100%; }
.inner-page .navbar-nav a { color: var(--text-dark); }
.inner-page .navbar-nav a:hover, .inner-page .navbar-nav a.active { color: var(--brand-blue); }
.navbar.scrolled .navbar-nav a { color: var(--text-dark); }
.navbar.scrolled .navbar-nav a:hover,
.navbar.scrolled .navbar-nav a.active { color: var(--brand-blue); }
.navbar-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.navbar-toggle span { display: block; width: 24px; height: 2px; background-color: var(--text-dark); transition: var(--transition); }
.inner-page .navbar-toggle span { background-color: var(--text-dark); }
.navbar.scrolled .navbar-toggle span { background-color: var(--text-dark); }
[ctype="languages"] { position: static !important; margin-left: 16px; display: inline-flex !important; align-items: center !important; flex-shrink: 0; }
[ctype="languages"] > * { position: static !important; }
.mobile-nav [ctype="languages"] { display: none !important; }
.mobile-nav {
  display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
  background-color: var(--primary-dark); padding: 32px 24px; z-index: 999;
}
.mobile-nav.active { display: flex; flex-direction: column; gap: 24px; }
.mobile-nav a { color: #fff; font-size: 1.25rem; font-weight: 500; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }


/* --- BUTTONS --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 16px 36px; font-size: 0.95rem; font-weight: 600; border-radius: var(--radius-sm);
  border: 2px solid transparent; cursor: pointer; transition: var(--transition); white-space: nowrap;
  position: relative; overflow: hidden;
}
.btn-primary { background-color: var(--cta-orange); color: #fff; border-color: var(--cta-orange); }
.btn-primary:hover { background-color: var(--cta-orange-hover); border-color: var(--cta-orange-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249,115,22,0.35); }
.btn-secondary { background-color: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn-secondary:hover { background-color: #fff; color: var(--primary-dark); border-color: #fff; }
.btn-outline-blue { background-color: transparent; color: var(--brand-blue); border-color: var(--brand-blue); }
.btn-outline-blue:hover { background-color: var(--brand-blue); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.25); }
.btn-arrow { transition: transform 0.3s ease; }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* --- PAGE BANNER --- */
.page-banner {
  position: relative; height: 400px; display: flex; align-items: center; justify-content: center;
  text-align: center; color: #fff; overflow: hidden; margin-top: var(--nav-height);
}
.page-banner-bg { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.page-banner-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,29,53,0.85), rgba(26,86,219,0.6)); z-index: 1; }
.page-banner-content { position: relative; z-index: 2; }
.page-banner-content h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); margin-bottom: 16px; }
.page-banner-content p { font-size: 1.25rem; opacity: 0.9; }

/* ===========================================
   HERO V2 - 全新设计
   =========================================== */
.hero-v2 {
  position: relative; height: calc(100vh - var(--nav-height)); min-height: 700px; display: flex;
  align-items: center; overflow: hidden; background: var(--primary-dark);
  margin-top: var(--nav-height);
}
.hero-v2-bg {
  position: absolute; inset: 0; z-index: 0;
}
.hero-v2-bg img {
  width: 100%; height: 100%; object-fit: cover;
  animation: hero-zoom 20s ease-in-out infinite alternate;
}
@keyframes hero-zoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}
.hero-v2-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(11,29,53,0.88) 0%, rgba(11,29,53,0.55) 50%, rgba(26,86,219,0.3) 100%);
  z-index: 1;
}
.hero-v2-grid {
  position: absolute; inset: 0; z-index: 2;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.hero-v2 .container {
  position: relative; z-index: 3;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center;
  height: 100%;
}
.hero-v2-content { color: #fff; }
.hero-v2-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  border-radius: 40px; padding: 8px 20px; margin-bottom: 32px;
  font-size: 0.85rem; color: rgba(255,255,255,0.9); backdrop-filter: blur(8px);
}
.hero-v2-dot {
  width: 8px; height: 8px; background: var(--cta-orange); border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.hero-v2 h1 {
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  line-height: 1.08; margin-bottom: 28px; font-weight: 800;
  letter-spacing: -0.02em;
}
.hero-v2 h1 .highlight {
  background: linear-gradient(90deg, var(--cta-orange), #FBBF24);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-v2-subtitle {
  font-size: clamp(1.1rem, 1.5vw, 1.3rem); opacity: 0.85; line-height: 1.7;
  margin-bottom: 40px; max-width: 560px;
}
.hero-v2-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-v2-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.hero-stat-card {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px; padding: 28px 24px; backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.hero-stat-card::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(249,115,22,0.2), transparent);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: transform 0.6s ease, opacity 0.6s ease;
  pointer-events: none;
}
.hero-stat-card:hover::before {
  transform: translate(-50%, -50%) scale(2.5);
  opacity: 1;
}
.hero-stat-card:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); transform: translateY(-4px); }
.hero-stat-number {
  font-size: clamp(2rem, 3vw, 2.8rem); font-weight: 800; color: var(--cta-orange);
  line-height: 1; margin-bottom: 8px; font-family: 'Inter', sans-serif;
  position: relative;
}
.hero-stat-number::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cta-orange);
  transition: width 0.4s ease;
}
.hero-stat-card:hover .hero-stat-number::after {
  width: 100%;
}
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); line-height: 1.4; }
.hero-stat-icon {
  width: 40px; height: 40px; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--cta-orange), var(--brand-blue));
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
}
.hero-stat-icon svg {
  width: 20px; height: 20px; color: #fff;
}

.scroll-indicator {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 3; display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.5); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.scroll-mouse {
  width: 26px; height: 40px; border: 2px solid rgba(255,255,255,0.3); border-radius: 14px;
  position: relative;
}
.scroll-mouse::after {
  content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 3px; height: 8px; background: rgba(255,255,255,0.5); border-radius: 2px;
  animation: scroll-bounce 1.8s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  50% { transform: translateX(-50%) translateY(10px); opacity: 0.3; }
}

/* ===========================================
   STATS BAR - 数字滚动条
   =========================================== */
.stats-bar {
  background: var(--primary-dark); padding: 48px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: relative;
  overflow: hidden;
}
.stats-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cta-orange), transparent);
  animation: shimmer 3s ease-in-out infinite;
  background-size: 200% 100%;
}
.stats-bar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -100%;
  width: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand-blue), transparent);
  animation: shimmer 4s ease-in-out infinite reverse;
  background-size: 200% 100%;
  animation-delay: 1s;
}
.stats-bar-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.stats-bar-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--cta-orange);
  border-radius: 50%;
  opacity: 0.3;
  animation: float-particle 8s ease-in-out infinite;
}
.stats-bar-particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.stats-bar-particle:nth-child(2) { left: 25%; top: 60%; animation-delay: 1.5s; }
.stats-bar-particle:nth-child(3) { left: 50%; top: 30%; animation-delay: 3s; }
.stats-bar-particle:nth-child(4) { left: 75%; top: 70%; animation-delay: 4.5s; }
.stats-bar-particle:nth-child(5) { left: 90%; top: 40%; animation-delay: 6s; }
.stats-bar-particle:nth-child(6) { left: 40%; top: 80%; animation-delay: 2s; }

@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.3; }
  25% { transform: translateY(-20px) translateX(10px); opacity: 0.6; }
  50% { transform: translateY(-10px) translateX(-10px); opacity: 0.4; }
  75% { transform: translateY(-30px) translateX(5px); opacity: 0.5; }
}
.stats-bar-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.stats-bar-item { text-align: center; }
.stats-bar-number {
  font-size: clamp(2.2rem, 3.5vw, 3rem); font-weight: 800; color: var(--cta-orange);
  font-family: 'Inter', sans-serif; line-height: 1.1;
  position: relative;
  display: inline-block;
}
.stats-bar-number.counting {
  animation: glow-number 1.5s ease-in-out infinite;
}
@keyframes glow-number {
  0%, 100% { text-shadow: 0 0 10px rgba(249,115,22,0.3); }
  50% { text-shadow: 0 0 20px rgba(249,115,22,0.6); }
}
.stats-bar-label {
  font-size: 0.9rem; color: rgba(255,255,255,0.5); margin-top: 8px;
}
.stats-bar-divider {
  width: 40px; height: 2px; background: rgba(255,255,255,0.1); margin: 12px auto 0;
}

/* ===========================================
   FEATURES V2 - 不对称优势区
   =========================================== */
.features-v2 { position: relative; overflow: hidden; }
.features-v2::before {
  content: ''; position: absolute; top: -200px; right: -200px;
  width: 500px; height: 500px; background: radial-gradient(circle, rgba(249,115,22,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.features-v2-header { margin-bottom: 72px; }
.features-v2-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; font-weight: 600; color: var(--cta-orange);
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px;
}
.features-v2-label::before { content: ''; width: 24px; height: 2px; background: var(--cta-orange); }
.features-v2-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 64px; align-items: start;
}
.features-v2-left h2 { font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.15; margin-bottom: 20px; }
.features-v2-left p { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.7; }
.features-v2-right {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.feature-v2-card {
  background: var(--bg-white); border: 1px solid var(--border-light);
  border-radius: 16px; padding: 32px 28px; transition: var(--transition);
  position: relative; overflow: hidden;
}
.feature-v2-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--cta-orange), var(--brand-blue));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease;
}
.feature-v2-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(249,115,22,0.08), transparent);
  border-radius: 50%;
  transition: transform 0.6s ease, opacity 0.6s ease;
  opacity: 0;
  pointer-events: none;
}
.feature-v2-card:hover { border-color: transparent; box-shadow: 0 12px 40px rgba(0,0,0,0.08); transform: translateY(-4px); }
.feature-v2-card:hover::before { transform: scaleX(1); }
.feature-v2-card:hover::after {
  transform: translate(-50%, 50%) scale(4);
  opacity: 1;
}
.feature-v2-num {
  font-size: 3rem; font-weight: 800; color: var(--bg-light);
  font-family: 'Inter', sans-serif; line-height: 1; margin-bottom: 16px;
  transition: color 0.3s ease, transform 0.3s ease;
  display: inline-block;
}
.feature-v2-card:hover .feature-v2-num {
  color: rgba(249,115,22,0.15);
  transform: scale(1.1) rotate(-5deg);
}
.feature-v2-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-v2-card p { color: var(--text-secondary); font-size: 0.9rem; margin: 0; line-height: 1.6; }

/* ===========================================
   PRODUCTS V2 - Bento Grid
   =========================================== */
.products-v2-grid {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-template-rows: auto auto;
  gap: 24px;
}
.product-v2-card {
  position: relative; border-radius: 16px; overflow: hidden;
  background: var(--primary-dark); min-height: 300px;
  cursor: pointer; transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  will-change: transform;
}
.product-v2-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.6s ease;
  pointer-events: none;
  z-index: 2;
}
.product-v2-card:hover::after {
  left: 150%;
}
.product-v2-card:first-child { grid-row: span 2; min-height: 100%; }
.product-v2-card img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.product-v2-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(249,115,22,0.15);
}
.product-v2-card:hover img { transform: scale(1.08); }
.product-v2-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,29,53,0.9) 0%, rgba(11,29,53,0.2) 50%, transparent 100%);
  transition: var(--transition);
}
.product-v2-card:hover .product-v2-overlay { background: linear-gradient(to top, rgba(11,29,53,0.95) 0%, rgba(11,29,53,0.4) 60%, rgba(11,29,53,0.2) 100%); }
.product-v2-content {
  position: absolute; bottom: 0; left: 0; right: 0; padding: 32px; color: #fff; z-index: 1;
  transform: translateY(20px); transition: transform 0.4s ease;
}
.product-v2-card:hover .product-v2-content { transform: translateY(0); }
.product-v2-tag {
  display: inline-block; font-size: 0.7rem; font-weight: 600;
  background: var(--cta-orange); padding: 4px 12px; border-radius: 4px;
  margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em;
}
.product-v2-content h3 { font-size: 1.3rem; margin-bottom: 8px; }
.product-v2-content p { font-size: 0.9rem; opacity: 0.8; margin: 0; }
.product-v2-link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 12px;
  font-size: 0.85rem; font-weight: 600; color: var(--cta-orange); opacity: 0;
  transform: translateY(10px); transition: all 0.3s ease 0.1s;
}
.product-v2-card:hover .product-v2-link { opacity: 1; transform: translateY(0); }

/* ===========================================
   CASES V2 - Zig-zag 交替布局
   =========================================== */
.cases-v2-list { display: flex; flex-direction: column; gap: 80px; }
.case-v2-item {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center;
}
.case-v2-item.reverse { direction: rtl; }
.case-v2-item.reverse > * { direction: ltr; }
.case-v2-img {
  position: relative; border-radius: 20px; overflow: hidden;
  aspect-ratio: 16/10; box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}
.case-v2-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.case-v2-item:hover .case-v2-img img { transform: scale(1.05); }
.case-v2-badge {
  position: absolute; top: 24px; left: 24px;
  background: var(--cta-orange); color: #fff; font-size: 0.75rem;
  font-weight: 700; padding: 6px 16px; border-radius: 6px;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.case-v2-content .case-v2-location {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.85rem; color: var(--cta-orange); font-weight: 600; margin-bottom: 16px;
}
.case-v2-content h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); margin-bottom: 16px; line-height: 1.25; }
.case-v2-content p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px; }

/* ===========================================
   ENTERPRISE V2 - 全宽背景 + 双面板
   =========================================== */
.enterprise-v2 {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0d2642 100%);
  color: #fff;
}
.enterprise-v2-bg {
  position: absolute; inset: 0; opacity: 0.12;
  background-image: url('../images/production-base.jpg');
  background-size: cover; background-position: center;
}
.enterprise-v2 .container { position: relative; z-index: 1; }
.enterprise-v2-header { text-align: center; margin-bottom: 72px; }
.enterprise-v2-header h2 { margin-bottom: 16px; }
.enterprise-v2-header p { color: rgba(255,255,255,0.6); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.enterprise-v2-panels {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.enterprise-v2-panel {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px; padding: 40px 32px; backdrop-filter: blur(8px);
  transition: var(--transition);
}
.enterprise-v2-panel:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); transform: translateY(-6px); }
.enterprise-v2-panel-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--cta-orange), var(--brand-blue));
  display: flex; align-items: center; justify-content: center; margin-bottom: 24px;
}
.enterprise-v2-panel-icon svg { width: 24px; height: 24px; color: #fff; }
.enterprise-v2-panel h3 { font-size: 1.25rem; margin-bottom: 14px; }
.enterprise-v2-panel p { color: rgba(255,255,255,0.6); font-size: 0.95rem; line-height: 1.7; margin: 0; }

/* ===========================================
   ARTICLES V2 - 非对称网格
   =========================================== */
.articles-v2-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px;
}
.article-v2-featured {
  position: relative; border-radius: 20px; overflow: hidden;
  background: var(--primary-dark);
  cursor: pointer;
}
.article-v2-featured img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.article-v2-featured:hover img { transform: scale(1.05); }
.article-v2-featured-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,29,53,0.95) 0%, rgba(11,29,53,0.3) 60%, transparent 100%);
}
.article-v2-featured-content {
  position: absolute; bottom: 0; left: 0; right: 0; padding: 40px;
  color: #fff; z-index: 1;
}
.article-v2-date {
  font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
}
.article-v2-featured-content h3 { font-size: clamp(1.3rem, 2vw, 1.75rem); margin-bottom: 12px; line-height: 1.3; }
.article-v2-featured-content p { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin: 0; }

.articles-v2-sidebar { display: flex; flex-direction: column; gap: 16px; }
.article-v2-card {
  display: flex; gap: 20px; background: var(--bg-white); border: 1px solid var(--border-light);
  border-radius: 16px; overflow: hidden; transition: var(--transition); cursor: pointer;
}
.article-v2-card:hover { border-color: transparent; box-shadow: 0 12px 40px rgba(0,0,0,0.08); transform: translateX(4px); }
.article-v2-card-img {
  width: 140px; flex-shrink: 0; overflow: hidden;
}
.article-v2-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; min-height: 100%; }
.article-v2-card:hover .article-v2-card-img img { transform: scale(1.08); }
.article-v2-card-body { padding: 20px 20px 20px 0; }
.article-v2-card-body .article-v2-date { color: var(--text-secondary); }
.article-v2-card-body h4 { font-size: 1rem; margin-bottom: 8px; line-height: 1.4; }
.article-v2-card-body p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }

/* ===========================================
   CTA V2
   =========================================== */
.cta-v2 {
  position: relative; padding: 120px 0; overflow: hidden;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--brand-blue) 100%);
  color: #fff;
}
.cta-v2::before {
  content: ''; position: absolute; top: -200px; right: -100px;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-v2::after {
  content: ''; position: absolute; bottom: -150px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-v2 .container { position: relative; z-index: 1; text-align: center; }
.cta-v2 h2 { font-size: clamp(2rem, 4vw, 3.2rem); margin-bottom: 20px; font-weight: 800; }
.cta-v2 p { font-size: 1.2rem; opacity: 0.85; margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-v2-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- FOOTER --- */
.footer { background-color: #060F1D; color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; }
.footer-brand h3 { color: #fff; font-size: 1.5rem; margin-bottom: 16px; }
.footer-brand p { font-size: 0.95rem; line-height: 1.7; }
.footer h4 { color: #fff; font-size: 1.1rem; margin-bottom: 20px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255,255,255,0.7); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--cta-orange); }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; font-size: 0.95rem; }
.footer-contact .icon { color: var(--cta-orange); flex-shrink: 0; width: 20px; text-align: center; }
/* --- SVG Icons Global --- */
svg use { color: inherit; }
.icon svg { width: 18px; height: 18px; vertical-align: middle; }
.footer-contact .icon svg { width: 18px; height: 18px; vertical-align: middle; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; text-align: center; font-size: 0.875rem; }
.enterprise-v2-panel-icon svg { width: 24px; height: 24px; color: #fff; }
.feature-icon svg { width: 28px; height: 28px; }

/* --- Legacy Feature Icons (used in about.html) --- */
.features-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.feature-item {
  text-align: center; padding: 32px 24px; border-radius: var(--radius-lg);
  background: var(--bg-white); box-shadow: var(--shadow-card); transition: var(--transition);
}
.feature-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.feature-icon {
  width: 64px; height: 64px; margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--brand-blue), var(--accent-blue));
  border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff;
}
.feature-item h3 { margin-bottom: 12px; font-size: 1.25rem; }
.feature-item p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }

/* --- CARDS (Inner pages) --- */
.cards-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 32px;
}
.card {
  background: var(--bg-white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-card);
  transition: var(--transition); border: 1px solid var(--border-light);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.card:hover .card-img img { transform: scale(1.05); }
.card-img { position: relative; overflow: hidden; aspect-ratio: 16 / 9; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card-body { padding: 24px; }
.card-body h3 { margin-bottom: 12px; font-size: 1.15rem; }
.card-body p { color: var(--text-secondary); margin-bottom: 16px; font-size: 0.95rem; }
.card-link { color: var(--brand-blue); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.card-link:hover { color: var(--accent-blue); gap: 10px; }

/* Section Header */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--text-secondary); max-width: 640px; margin: 0 auto; }

/* CTA Banner */
.cta-banner {
  position: relative; padding: 80px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--brand-blue) 100%);
  color: #fff; text-align: center;
}
.cta-banner::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%);
}
.cta-banner h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: 16px; position: relative; }
.cta-banner p { font-size: 1.125rem; opacity: 0.9; margin-bottom: 32px; position: relative; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-banner .btn { position: relative; }

/* Form */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 0.875rem; color: var(--text-dark); font-weight: 500; }
.form-control { width: 100%; padding: 12px 16px; border: 1px solid #D1D5DB; border-radius: var(--radius-md); font-size: 1rem; font-family: inherit; transition: var(--transition); background-color: var(--bg-white); }
.form-control:focus { outline: none; border-color: var(--brand-blue); border-width: 2px; padding: 11px 15px; }
textarea.form-control { min-height: 140px; resize: vertical; }

/* ===========================================
   GALLERY - 设备图集
   =========================================== */
.gallery-grid {
  position: relative;
}
.gallery-page {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.gallery-page.active {
  display: grid;
}
.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img {
  transform: scale(1.05);
}
.gallery-pagination {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}
.gallery-page-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid #E5E7EB;
  background: #fff;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: #6B7280;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-page-btn:hover {
  border-color: #1A56DB;
  color: #1A56DB;
}
.gallery-page-btn.active {
  background: #1A56DB;
  border-color: #1A56DB;
  color: #fff;
}

@media (max-width: 767px) {
  .gallery-page {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

/* --- TWO COL GRID --- */
.two-col-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.contact-grid { gap: 64px; align-items: start; }

/* --- BREADCRUMB --- */
.section-light > .container > nav[style*="margin-bottom"] {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
}

/* --- MAP CONTAINER --- */
.map-container {
  height: 450px; background: var(--bg-light); display: flex;
  align-items: center; justify-content: center; position: relative; overflow: hidden;
}

/* --- RESPONSIVE --- */
@media (max-width: 1023px) {
  :root { --section-padding: var(--section-padding-mobile); }
  .hero-v2 .container { grid-template-columns: 1fr; text-align: center; }
  .hero-v2-stats { max-width: 480px; margin: 0 auto; }
  .hero-v2-subtitle { margin-left: auto; margin-right: auto; }
  .hero-v2-buttons { justify-content: center; }
  .features-v2-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-v2-right { order: -1; }
  .products-v2-grid { grid-template-columns: 1fr 1fr 1fr; }
  .product-v2-card:first-child { grid-row: auto; min-height: 300px; }
  .case-v2-item, .case-v2-item.reverse { grid-template-columns: 1fr; gap: 32px; }
  .case-v2-item.reverse { direction: ltr; }
  .enterprise-v2-panels { grid-template-columns: 1fr; }
  .articles-v2-grid { grid-template-columns: 1fr; }
  .articles-v2-sidebar { flex-direction: row; gap: 20px; }
  .article-v2-card { flex: 1; }
  .stats-bar-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col-grid { grid-template-columns: 1fr; gap: 40px; }
  .map-container { height: 350px; }
  .page-banner { height: 280px; }
  .section-light > .container > nav[style*="margin-bottom"] { padding-top: 8px; }
}

@media (max-width: 767px) {
  .navbar-nav { display: none; }
  .navbar-toggle { display: flex; }
  .navbar [ctype="languages"] { display: none !important; }
  .mobile-nav [ctype="languages"] { display: flex !important; margin-top: 24px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); }
  .products-v2-grid { grid-template-columns: 1fr; }
  .articles-v2-sidebar { flex-direction: column; }
  .article-v2-card { flex-direction: column; }
  .article-v2-card-img { width: 100%; height: 160px; }
  .article-v2-card-body { padding: 16px; }
  .hero-v2 { min-height: calc(100vh - var(--nav-height)); }
  .hero-stat-card { padding: 20px 16px; }
  .scroll-indicator { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-bar-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .features-v2-right { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .map-container { height: 280px; }
  .page-banner { height: 200px; margin-top: var(--nav-height); }
  .page-banner-content h1 { font-size: clamp(1.5rem, 6vw, 2.25rem); }
  .page-banner-content p { font-size: 1rem; }
  .section-light > .container > nav[style*="margin-bottom"] {
    font-size: 0.8rem; word-break: break-all;
  }
}