/* ==========================================================================
   工业+大气风格企业官网核心样式表 (Industrial & Atmospheric Theme CSS)
   ========================================================================== */

:root {
  --primary-dark: #0b132b;
  --secondary-dark: #1c2541;
  --card-dark: #1e293b;
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --accent-amber: #f59e0b;
  --accent-orange: #e28743;
  --accent-blue: #0284c7;
  --accent-cyan: #06b6d4;
  --border-light: #e2e8f0;
  --border-dark: #334155;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --container-max: 1240px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 36px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.25);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(11, 19, 43, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.header-topbar {
  background-color: #070d1d;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.topbar-info {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-info span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.topbar-tag {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.header-main {
  padding: 14px 0;
}

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

.site-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.site-title-box {
  display: flex;
  flex-direction: column;
}

.site-title-text {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.site-desc-text {
  font-size: 11px;
  color: var(--accent-amber);
  letter-spacing: 1px;
  font-weight: 500;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item a {
  display: block;
  padding: 8px 14px;
  color: #e2e8f0;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-item.current-menu-item a,
.nav-item.active a,
.nav-item a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-item.current-menu-item a::after,
.nav-item.active a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--accent-amber);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-rfq {
  background: linear-gradient(135deg, #f59e0b 0%, #e28743 100%);
  color: #ffffff !important;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
  border: none;
  cursor: pointer;
}

.btn-rfq:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 24px;
  cursor: pointer;
}

/* ==========================================================================
   Hero Section (工业震撼首屏)
   ========================================================================== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #070d1d 0%, #0b132b 50%, #1c2541 100%);
  color: #ffffff;
  padding: 85px 0 95px;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.12) 0%, transparent 40%),
                    radial-gradient(circle at 20% 80%, rgba(2, 132, 199, 0.15) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-amber);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 22px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title span.highlight {
  background: linear-gradient(135deg, #f59e0b 0%, #ffbe53 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 18px;
  color: #cbd5e1;
  max-width: 780px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 55px;
  flex-wrap: wrap;
}

.btn-primary-industrial {
  background: linear-gradient(135deg, #f59e0b 0%, #e28743 100%);
  color: #ffffff;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 18px rgba(245, 158, 11, 0.4);
}

.btn-primary-industrial:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.55);
}

.btn-outline-industrial {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-outline-industrial:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

/* Metric stats */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 36px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: var(--transition);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-amber);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--accent-amber);
  line-height: 1.1;
  margin-bottom: 6px;
  font-family: monospace, var(--font-family);
}

.stat-label {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.4;
}

/* ==========================================================================
   Section Title & Structure
   ========================================================================== */
.section-py {
  padding: 85px 0;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Dark Section Variant */
.section-dark {
  background: #080e1e;
  color: #ffffff;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-dark .section-subtitle {
  color: #94a3b8;
}

.section-dark .section-tag {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
}

/* Page Header (Internal Pages) */
.page-header-banner {
  background: linear-gradient(135deg, #070d1d 0%, #0b132b 60%, #1c2541 100%);
  color: #ffffff;
  padding: 60px 0;
  border-bottom: 2px solid var(--accent-amber);
}

.page-header-banner .breadcrumbs {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.page-header-banner .breadcrumbs a:hover {
  color: var(--accent-amber);
}

.page-header-banner h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 10px;
}

.page-header-banner p {
  font-size: 16px;
  color: #cbd5e1;
  max-width: 700px;
}

/* ==========================================================================
   Core Technologies (三大核心技术矩阵)
   ========================================================================== */
.tech-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.tech-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 34px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tech-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #f59e0b, #e28743);
  opacity: 0;
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #fcd34d;
}

.tech-card:hover::before {
  opacity: 1;
}

.tech-number {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-amber);
  background: #fef3c7;
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 16px;
  align-self: flex-start;
}

.tech-card-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.tech-card-en {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.tech-card-desc {
  font-size: 14px;
  color: #475569;
  line-height: 1.7;
  margin-bottom: 22px;
  flex-grow: 1;
}

.tech-highlights {
  border-top: 1px solid var(--border-light);
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tech-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: #334155;
  font-weight: 500;
}

.tech-highlight-item svg {
  flex-shrink: 0;
  color: #059669;
  margin-top: 2px;
}

/* ==========================================================================
   Product Matrix (六大拳头产品)
   ========================================================================== */
.product-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  background: #ffffff;
  border: 1px solid var(--border-light);
  color: var(--text-dark);
  padding: 9px 20px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(11, 19, 43, 0.2);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.product-img-box {
  position: relative;
  height: 240px;
  background: #f1f5f9;
  overflow: hidden;
}

.product-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img-box img {
  transform: scale(1.06);
}

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 19, 43, 0.85);
  backdrop-filter: blur(4px);
  color: var(--accent-amber);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

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

.product-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.product-en-title {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.product-desc {
  font-size: 14px;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.product-specs-list {
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}

.spec-label {
  color: var(--text-muted);
}

.spec-value {
  color: var(--primary-dark);
  font-weight: 600;
}

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

.btn-detail {
  flex: 1;
  text-align: center;
  background: var(--primary-dark);
  color: #ffffff;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
}

.btn-detail:hover {
  background: #1c2541;
}

.btn-inquire-sm {
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-inquire-sm:hover {
  background: var(--accent-amber);
  color: #ffffff;
}

/* ==========================================================================
   Industry Application (行业应用与案例)
   ========================================================================== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.industry-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: var(--transition);
}

.industry-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-amber);
  transform: translateY(-4px);
}

.industry-icon-box {
  width: 52px;
  height: 52px;
  background: rgba(245, 158, 11, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  margin-bottom: 20px;
}

.industry-card-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.industry-card-desc {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 16px;
}

.industry-parts-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.industry-part-tag {
  background: rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 4px;
}

/* ==========================================================================
   Field Cases Gallery & Comparison (现场实拍案例与数据对比)
   ========================================================================== */
.cases-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.case-img-card {
  position: relative;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #0f172a;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.case-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.case-img-card:hover img {
  transform: scale(1.08);
}

.case-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  color: #ffffff;
}

.case-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

/* Comparison Table */
.comparison-container {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th {
  background: #0b132b;
  color: #ffffff;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
}

.comparison-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:nth-child(even) td {
  background-color: #f8fafc;
}

.badge-winner {
  background: #dcfce7;
  color: #15803d;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
}

/* ==========================================================================
   Manufacturing Process (智能智造工序)
   ========================================================================== */
.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.process-step-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 20px 14px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.process-step-card:hover {
  border-color: var(--accent-amber);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #0b132b;
  color: var(--accent-amber);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.step-img-box {
  height: 95px;
  margin-bottom: 12px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.step-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.step-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.step-en {
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   Articles / News Section (文章与技术动态)
   ========================================================================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.news-img-box {
  height: 180px;
  background: #f1f5f9;
  overflow: hidden;
}

.news-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-card:hover .news-img-box img {
  transform: scale(1.06);
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.news-category-tag {
  background: #e0f2fe;
  color: #0369a1;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.news-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.45;
  margin-bottom: 12px;
}

.news-card-title a:hover {
  color: var(--accent-orange);
}

.news-excerpt {
  font-size: 14px;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.news-readmore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-orange);
}

.news-readmore:hover {
  gap: 10px;
}

/* ==========================================================================
   CTA Section (工况选型行动号召)
   ========================================================================== */
.cta-section {
  background: linear-gradient(135deg, #0b132b 0%, #1c2541 100%);
  color: #ffffff;
  padding: 65px 0;
  border-top: 2px solid var(--accent-amber);
}

.cta-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

.cta-text-box h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-text-box p {
  font-size: 16px;
  color: #cbd5e1;
}

.cta-btn-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   Footer (工业大气页脚)
   ========================================================================== */
.site-footer {
  background: #050a17;
  color: #94a3b8;
  padding-top: 70px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent-amber);
}

.footer-about-text {
  font-size: 14px;
  line-height: 1.7;
  margin: 16px 0 20px;
  color: #94a3b8;
}

.footer-links-list li {
  margin-bottom: 12px;
}

.footer-links-list a {
  color: #94a3b8;
  font-size: 14px;
}

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

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
}

.footer-contact-item svg {
  flex-shrink: 0;
  color: var(--accent-amber);
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0;
  font-size: 13px;
  text-align: center;
  color: #64748b;
}

.footer-bottom a {
  color: #64748b;
}

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

/* ==========================================================================
   Contact Form & Info
   ========================================================================== */
.contact-layout-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 40px;
  margin-top: 40px;
}

.contact-form-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.contact-info-box {
  background: #0b132b;
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 10px;
}

.contact-card-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--accent-amber);
}

.info-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.info-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-content h5 {
  font-size: 14px;
  color: var(--accent-amber);
  margin-bottom: 4px;
}

.info-content p {
  font-size: 15px;
  color: #e2e8f0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

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

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

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

.btn-submit {
  background: linear-gradient(135deg, #f59e0b 0%, #e28743 100%);
  color: #ffffff;
  border: none;
  padding: 14px 36px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

/* ==========================================================================
   Single Post & Content Typography
   ========================================================================== */
.post-layout-grid {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

.single-post-body {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.single-post-body h2 {
  font-size: 24px;
  color: var(--primary-dark);
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #f1f5f9;
}

.single-post-body h3 {
  font-size: 20px;
  color: var(--secondary-dark);
  margin: 24px 0 12px;
}

.single-post-body p {
  font-size: 16px;
  color: #334155;
  line-height: 1.8;
  margin-bottom: 20px;
}

.single-post-body ul, 
.single-post-body ol {
  margin: 16px 0 24px 24px;
}

.single-post-body li {
  list-style: disc;
  font-size: 15px;
  color: #334155;
  margin-bottom: 8px;
}

.single-post-body blockquote {
  border-left: 4px solid var(--accent-amber);
  background: #fefce8;
  padding: 16px 24px;
  margin: 24px 0;
  font-style: italic;
  color: #854d0e;
}

.sidebar-widget {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 24px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.widget-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent-amber);
}

/* ==========================================================================
   Modal Dialog (工况选型在线询价弹窗)
   ========================================================================== */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-content {
  background: #ffffff;
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  padding: 36px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 36px;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tech-cards-grid,
  .products-grid,
  .industries-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .cases-gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-layout-grid,
  .post-layout-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-topbar {
    display: none;
  }
  .main-navigation {
    display: none;
  }
  .main-navigation.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #0b132b;
    padding: 20px;
    border-bottom: 1px solid var(--border-dark);
  }
  .nav-menu {
    flex-direction: column;
    width: 100%;
  }
  .nav-item {
    width: 100%;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-stats-grid {
    grid-template-columns: 1fr;
  }
  .tech-cards-grid,
  .products-grid,
  .industries-grid,
  .news-grid,
  .cases-gallery-grid {
    grid-template-columns: 1fr;
  }
  .process-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .cta-box {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   全新响应式页头与移动端导航系统 (完美解决手机端挤压重叠与占幅过大)
   ========================================================================== */

/* 1. 桌面端模式 (屏幕宽度 > 992px) */
@media (min-width: 993px) {
  .header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .main-navigation {
    display: flex !important;
    align-items: center;
    gap: 16px;
  }
  .main-navigation .nav-menu,
  .main-navigation ul {
    display: flex !important;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .main-navigation a,
  .main-navigation .menu-item a,
  .main-navigation .nav-item a {
    display: block !important;
    padding: 8px 16px !important;
    color: #ffffff !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    transition: all 0.25s ease !important;
    letter-spacing: 0.5px !important;
  }
  .main-navigation a:hover,
  .main-navigation .menu-item a:hover {
    color: #f59e0b !important;
    background: rgba(255, 255, 255, 0.12) !important;
  }
  .main-navigation .current-menu-item a,
  .main-navigation .current_page_item a,
  .main-navigation .active a {
    color: #ffffff !important;
    background: rgba(255, 255, 255, 0.08) !important;
  }
  .main-navigation .current-menu-item a::after,
  .main-navigation .current_page_item a::after,
  .main-navigation .active a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: #f59e0b;
    border-radius: 2px;
  }
  .mobile-toggle {
    display: none !important;
  }
}

/* 2. 移动端与平板模式 (屏幕宽度 <= 992px) */
@media (max-width: 992px) {
  /* 隐藏顶部冗长联络栏，为手机屏幕释放空间 */
  .header-topbar {
    display: none !important;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: #0b132b !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .header-main {
    padding: 10px 0 !important;
  }

  .header-main .container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 0 16px !important;
    position: relative;
  }

  /* 移动端 Logo 紧凑优雅 */
  .site-brand {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    max-width: calc(100% - 130px);
  }

  .site-logo-img {
    height: 38px !important;
    width: auto !important;
  }

  .site-title-box {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .site-title-text {
    font-size: 16px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* 手机端隐藏过长的次级副标题文字，避免折行挤压 */
  .site-desc-text {
    display: none !important;
  }

  /* 右侧操作区：报价按钮 + 汉堡按钮并排 */
  .header-actions {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
  }

  /* 手机端选型报价按钮紧凑化 */
  .btn-rfq {
    padding: 6px 12px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    border-radius: 4px !important;
    white-space: nowrap !important;
    gap: 4px !important;
    height: 36px;
  }
  .btn-rfq svg {
    display: none !important;
  }

  /* 汉堡切换按钮精致化 */
  .mobile-toggle {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    border-radius: 4px !important;
    background: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.18) !important;
    color: #ffffff !important;
    font-size: 20px !important;
    cursor: pointer !important;
    line-height: 1 !important;
    transition: all 0.2s ease;
  }

  .mobile-toggle:hover,
  .mobile-toggle:active {
    background: rgba(245, 158, 11, 0.2) !important;
    color: #f59e0b !important;
    border-color: #f59e0b !important;
  }

  /* 核心：默认状态下绝对彻底隐藏 6 个导航链接！绝不在顶栏水平或垂直乱铺！ */
  .main-navigation {
    display: none !important;
  }

  /* 当用户点击汉堡按钮时，以高质感抽屉下拉展开 */
  .main-navigation.mobile-open {
    display: block !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    background: rgba(11, 19, 43, 0.98) !important;
    backdrop-filter: blur(20px) !important;
    border-bottom: 3px solid #f59e0b !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6) !important;
    padding: 12px 16px 20px !important;
    z-index: 9999 !important;
    max-height: 75vh;
    overflow-y: auto;
    animation: mobileMenuSlideDown 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .main-navigation.mobile-open .nav-menu,
  .main-navigation.mobile-open ul {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    gap: 2px !important;
  }

  .main-navigation.mobile-open .menu-item,
  .main-navigation.mobile-open .nav-item {
    width: 100% !important;
  }

  .main-navigation.mobile-open a {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    padding: 13px 14px !important;
    color: #f1f5f9 !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07) !important;
    border-radius: 4px !important;
    text-decoration: none !important;
    box-sizing: border-box !important;
  }

  .main-navigation.mobile-open a:hover,
  .main-navigation.mobile-open .current-menu-item a,
  .main-navigation.mobile-open .current_page_item a,
  .main-navigation.mobile-open .active a {
    color: #f59e0b !important;
    background: rgba(245, 158, 11, 0.12) !important;
  }

  .main-navigation.mobile-open a::after {
    display: none !important;
  }
}

@keyframes mobileMenuSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}