/* ==========================================================================
   Modern B2B Premium Style Sheet - Iron Bed Factory Website Template
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- Design Tokens & CSS Variables --- */
:root {
  /* Color Palette - Light Mode (重构为极度醒目、高对比度的白色底、B2B工业红与高对比度粗黑体) */
  --primary-color: #ba1d1e;      /* Elegant warm Chinese B2B Red (Ba1d1e) */
  --primary-hover: #990000;
  --secondary-color: #111111;    /* Deep solid black instead of slate-blue */
  --secondary-hover: #000000;
  --accent-color: #e60012;       /* Accent highlight B2B Red */
  
  --bg-primary: #ffffff;         /* Pure bright white background */
  --bg-secondary: #ffffff;       /* Pure solid white sections */
  --bg-tertiary: #f8fafc;
  
  --text-primary: #111111;       /* Deep solid black text for extreme contrast */
  --text-secondary: #333333;     /* Dark charcoal secondary text */
  --text-muted: #666666;         /* Clear grey muted text */
  --text-on-primary: #ffffff;
  
  /* Solid header background details in light mode (清除杂乱玻璃模糊与暗底，回归纯白极简) */
  --glass-bg: #ffffff;
  --glass-border: #e2e8f0;
  --glass-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  --card-shadow-hover: 0 16px 36px rgba(186, 29, 30, 0.12);
  
  /* Layout */
  --max-width: 1200px;
  --border-radius-sm: 4px;       /* Sharper borders matching industrial aesthetics */
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  /* Transition Constants */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Color Palette Overrides */
[data-theme="dark"] {
  --bg-primary: #0b0f19;         /* Rich Dark Navy */
  --bg-secondary: #131b2e;       /* Deep Steel Slate */
  --bg-tertiary: #1e293b;
  
  --text-primary: #f8fafc;       /* Light Muted Gray */
  --text-secondary: #cbd5e1;     /* Gray Text */
  --text-muted: #64748b;
  
  --glass-bg: rgba(19, 27, 46, 0.9);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 20px 40px -15px rgba(186, 29, 30, 0.25);
}

/* --- Global Resets & Base Styles --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  transition: color var(--transition-normal);
}

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

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

ul, ol {
  list-style: none;
}

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

/* --- Common Components & Utilities --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section-bg {
  background-color: var(--bg-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(185, 28, 28, 0.3);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-on-primary);
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(30, 41, 59, 0.3);
}

.btn-outline {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--text-on-primary);
  transform: translateY(-2px);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2.25rem;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

.section-title p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Header & Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-normal);
}

.top-bar {
  background-color: #ffffff;      /* Solid white background in light mode */
  color: #333333;                 /* Deep charcoal text */
  font-size: 0.875rem;
  padding: 10px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #f1f5f9;
  transition: all var(--transition-normal);
}

[data-theme="dark"] .top-bar {
  background-color: #111b2d;
  color: rgba(255, 255, 255, 0.85);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.top-bar-left span {
  margin-right: 20px;
  display: inline-flex;
  align-items: center;
}

/* Header giant telephone number prominence */
.top-bar-left .cfg-phone {
  font-size: 1.4rem !important;
  font-weight: 800 !important;
  color: var(--primary-color) !important;
  background: none !important;
  border: none !important;
  padding: 0 !important;
  box-shadow: none !important;
  display: inline-block;
  vertical-align: middle;
  margin-left: 8px;
  letter-spacing: 0.5px;
}

.top-bar-right a {
  color: inherit;
  margin-left: 15px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.top-bar-right a:hover {
  color: var(--primary-color);
}

.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-container img {
  height: 48px;
  border-radius: var(--border-radius-sm);
}

.logo-text h1 {
  font-size: 1.6rem;
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo-text span {
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: var(--text-muted);
  display: block;
  font-weight: 500;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-weight: 600;               /* Heavy weight matching B2B traditional site headers */
  padding: 6px 16px;
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  border: 1px solid transparent;  /* Pre-allocate border size so page doesn't shift */
  transition: all var(--transition-fast);
}

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

.nav-link.active {
  color: var(--text-primary) !important;
  background-color: transparent !important;
  border: 1px solid #222222 !important; /* Replicates the solid border-box around '网站首页' */
}

[data-theme="dark"] .nav-link.active {
  color: #ffffff !important;
  border-color: #ffffff !important;
}

/* Dropdown Menu styling */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background-color: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--card-shadow);
  padding: 10px 0;
  min-width: 180px;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
}

.nav-item-dropdown:hover .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: 8px 20px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.dropdown-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--primary-color);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.theme-toggle {
  background: none;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--text-primary);
  padding: 8px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: rgba(186, 29, 30, 0.08);
  color: var(--primary-color);
}

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* Spacer for Fixed Header */
.header-spacer {
  height: 116px; /* Accounts for top bar and nav bar */
}

/* --- Mobile Drawer --- */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background-color: var(--bg-secondary);
  z-index: 1010;
  box-shadow: -10px 0 30px rgba(0,0,0,0.15);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 30px;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-drawer-close {
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.mobile-nav-link {
  font-size: 1.1rem;
  font-weight: 600;
  padding: 10px;
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background-color: rgba(185, 28, 28, 0.08);
  color: var(--primary-color);
}

.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 1005;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* --- Hero Banner Slider --- */
.hero-slider {
  position: relative;
  height: 600px;
  overflow: hidden;
  background-color: #000;
}

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

.slide-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  z-index: 1;
  transition: opacity var(--transition-slow) ease-in-out;
  display: flex;
  align-items: center;
}

.slide-item.active {
  opacity: 1;
  z-index: 2;
}

.slide-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4);
}

.slide-content {
  position: relative;
  z-index: 5;
  color: #ffffff;
  max-width: 800px;
  padding: 0 40px;
  transform: translateY(30px);
  opacity: 0;
  transition: all var(--transition-slow) var(--transition-fast) ease-out;
}

.slide-item.active .slide-content {
  transform: translateY(0);
  opacity: 1;
}

.slide-tag {
  background: var(--primary-color);
  color: #fff;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 30px;
  display: inline-block;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.slide-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff !important;         /* Force white color on dark background banner */
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.8) !important;
}

.slide-desc {
  font-size: 1.25rem;
  margin-bottom: 35px;
  color: rgba(255, 255, 255, 0.95) !important; /* Force high contrast white */
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8) !important;
}

.slider-controls {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-dot.active {
  background-color: var(--primary-color);
  width: 32px;
  border-radius: 6px;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition-fast);
  backdrop-filter: blur(4px);
}

.slider-arrow:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.slider-arrow-prev {
  left: 30px;
}

.slider-arrow-next {
  right: 30px;
}

/* --- Slogan & Search Box --- */
.slogan-search-bar {
  background-color: var(--bg-secondary);
  padding: 40px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
  border-bottom: 1px solid var(--glass-border);
}

.slogan-search-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
}

.slogan-text h3 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.slogan-text p {
  color: var(--text-secondary);
}

.search-box {
  display: flex;
  width: 100%;
  max-width: 450px;
  border: 2px solid var(--glass-border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background-color: var(--bg-primary);
  transition: border-color var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--primary-color);
}

.search-input {
  flex-grow: 1;
  padding: 12px 18px;
  background: none;
}

.search-btn {
  background-color: var(--primary-color);
  color: #fff;
  padding: 0 24px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-btn:hover {
  background-color: var(--primary-hover);
}

/* --- Grid Architecture (Advantages / Product Grid) --- */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

/* Advantage Card */
.advantage-card {
  background-color: var(--bg-secondary);
  padding: 35px 25px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  text-align: center;
  transition: all var(--transition-normal);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
}

.advantage-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: rgba(185, 28, 28, 0.08);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 20px;
  transition: all var(--transition-fast);
}

.advantage-card:hover .advantage-icon {
  background-color: var(--primary-color);
  color: #ffffff;
}

.advantage-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.advantage-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

/* Product Card */
.product-card {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
}

.product-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-img-wrapper img {
  transform: scale(1.1);
}

.product-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary-color);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--border-radius-sm);
  z-index: 5;
}

.product-info {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-title {
  font-size: 1.2rem;
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 15px;
}

.product-actions {
  margin-top: auto;
  display: flex;
  gap: 10px;
}

.product-actions .btn {
  flex-grow: 1;
  padding: 10px;
  font-size: 0.9rem;
}

/* --- Feature Banner "好料好生意" --- */
.feature-banner {
  position: relative;
  padding: 120px 0;
  background-color: #000;
  color: #fff;
  overflow: hidden;
}

.feature-banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  transition: transform var(--transition-slow);
}

.feature-banner:hover .feature-banner-bg {
  transform: scale(1.05);
}

.feature-banner-content {
  position: relative;
  z-index: 5;
  max-width: 700px;
}

.feature-banner-content h2 {
  color: #fff;
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
}

.feature-banner-content p {
  font-size: 1.2rem;
  margin-bottom: 40px;
  opacity: 0.85;
}

.feature-stats {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}

.stat-item h3 {
  color: var(--primary-color);
  font-size: 2.5rem;
  font-weight: 800;
  font-family: 'Outfit', sans-serif;
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

/* --- Success Cases (Cascading Portfolio) --- */
.case-card {
  position: relative;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  box-shadow: var(--card-shadow);
  cursor: pointer;
}

.case-img {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
}

.case-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.4) 60%, rgba(15,23,42,0) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  opacity: 0.9;
  transition: opacity var(--transition-normal);
}

.case-card:hover .case-img {
  transform: scale(1.1);
}

.case-category {
  color: var(--primary-color);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.case-title {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.case-desc {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.case-card:hover .case-desc {
  transform: translateY(0);
  opacity: 1;
}

/* --- Product Filter Component (Inner Page) --- */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 10px 24px;
  border-radius: 30px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-tab:hover, .filter-tab.active {
  background-color: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

/* --- In-page Layout Templates (About Page Time-axis / Contact) --- */
/* About Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background-color: var(--glass-border);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: var(--bg-secondary);
  border: 4px solid var(--primary-color);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
  transition: all var(--transition-fast);
}

.timeline-item:hover::after {
  background-color: var(--primary-color);
  transform: scale(1.2);
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.right::after {
  left: -10px;
}

.timeline-content {
  padding: 24px;
  background-color: var(--bg-secondary);
  position: relative;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
}

.timeline-year {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  color: var(--primary-color);
  font-weight: 800;
  margin-bottom: 8px;
}

/* Contact Grid & Map */
.contact-info-block {
  background-color: var(--bg-secondary);
  padding: 40px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  height: 100%;
}

.contact-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.contact-icon-wrapper {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-sm);
  background-color: rgba(185, 28, 28, 0.08);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.contact-item p {
  color: var(--text-secondary);
}

/* Form Styles */
.form-container {
  background-color: var(--bg-secondary);
  padding: 40px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--glass-border);
  background-color: var(--bg-primary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary-color);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* --- Inquiry / Contact Modal --- */
.inquiry-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15,23,42,0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.inquiry-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.inquiry-modal-content {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  width: 90%;
  max-width: 550px;
  padding: 40px;
  position: relative;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.inquiry-modal.open .inquiry-modal-content {
  transform: scale(1);
}

.inquiry-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.inquiry-modal-close:hover {
  color: var(--primary-color);
}

/* Form success feedback micro-modal */
.toast-success {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: #059669; /* Emeral Green */
  color: #fff;
  padding: 16px 28px;
  border-radius: var(--border-radius-sm);
  box-shadow: 0 10px 15px -3px rgba(5, 150, 105, 0.3);
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.toast-success.show {
  transform: translateY(0);
  opacity: 1;
}

/* --- Floating Service Sidebar (Right Panel) --- */
.floating-service {
  position: fixed;
  right: 24px;
  bottom: 80px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-item {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.service-item:hover {
  background-color: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
}

.service-tooltip {
  position: absolute;
  right: 65px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--card-shadow);
  white-space: nowrap;
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transform: translateX(10px);
  transition: all var(--transition-fast);
}

.service-item:hover .service-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* --- Footer Area --- */
.footer {
  background-color: var(--secondary-color);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 30px;
  font-size: 0.9rem;
}

.footer h3, .footer h4 {
  color: #ffffff;
  margin-bottom: 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 60px;
}

.footer-logo img {
  height: 40px;
  margin-bottom: 15px;
  border-radius: var(--border-radius-sm);
}

.footer-logo p {
  line-height: 1.6;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  transition: color var(--transition-fast);
}

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

.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
}

.footer-contact-icon {
  color: var(--accent-color);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copyright a:hover {
  color: var(--accent-color);
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow) ease-out, transform var(--transition-slow) ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
  
  .header-spacer {
    height: 77px;
  }
  
  .nav-menu, .nav-actions .theme-toggle:not(.mobile-hide), .btn-consultation {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero-slider {
    height: 480px;
  }
  
  .slide-title {
    font-size: 2.25rem;
  }
  
  .slide-desc {
    font-size: 1rem;
    margin-bottom: 25px;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .slogan-search-container {
    flex-direction: column;
    text-align: center;
  }
  
  .feature-banner-content h2 {
    font-size: 2rem;
  }
  
  .feature-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .timeline::after {
    left: 31px;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }
  
  .timeline-item::after {
    left: 21px;
  }
  
  .right {
    left: 0%;
  }
  
  .right::after {
    left: 21px;
  }
}

@media (max-width: 480px) {
  .grid-4, .grid-3 {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Prominent Contact Details Styling (电话和地址高亮醒目)
   ========================================================================== */
.cfg-phone {
  font-size: 1.15em;
  font-weight: 800 !important;
  color: #b91c1c !important; /* Bold Crimson */
  background: linear-gradient(120deg, rgba(185, 28, 28, 0.08) 0%, rgba(217, 119, 6, 0.08) 100%);
  padding: 4px 12px;
  border-radius: var(--border-radius-sm);
  border: 1px dashed rgba(185, 28, 28, 0.4);
  display: inline-block;
  box-shadow: 0 2px 8px rgba(185, 28, 28, 0.05);
  transition: all var(--transition-fast) !important;
}

[data-theme="dark"] .cfg-phone {
  color: #ef4444 !important; /* Brighter Red in Dark mode */
  background: linear-gradient(120deg, rgba(239, 68, 68, 0.15) 0%, rgba(245, 158, 11, 0.15) 100%);
  border-color: rgba(239, 68, 68, 0.5);
}

.cfg-phone:hover {
  transform: scale(1.05);
  border-style: solid;
  box-shadow: 0 4px 12px rgba(185, 28, 28, 0.15);
}

.cfg-address-factory, .cfg-address-office {
  font-weight: 700 !important;
  color: var(--text-primary) !important;
  border-bottom: 2px dotted var(--primary-color);
  padding-bottom: 2px;
  display: inline-block;
}

[data-theme="dark"] .cfg-address-factory, [data-theme="dark"] .cfg-address-office {
  border-bottom-color: #ef4444;
}