/* ============================================
   有马信息 - 企业官网样式
   风格参考: Gigamon 深色科技风
   ============================================ */

:root {
  --primary: #0a1628;
  --primary-light: #132040;
  --primary-mid: #1a2d52;
  --accent: #00c9a7;
  --accent-dark: #00a88a;
  --accent-light: #00e6bf;
  --secondary: #4a90d9;
  --secondary-light: #6baaf0;
  --text: #1a1a2e;
  --text-light: #5a6578;
  --text-lighter: #8b95a5;
  --text-on-dark: #e0e6ef;
  --text-on-dark-muted: #9aa5b8;
  --bg: #ffffff;
  --bg-light: #f5f7fa;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-light: #f0f3f7;
  --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
  --shadow: 0 4px 20px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 12px 40px rgba(10, 22, 40, 0.12);
  --shadow-xl: 0 20px 60px rgba(10, 22, 40, 0.16);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

ul { list-style: none; }

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-family: var(--font);
}

.btn i { font-size: 0.85em; transition: transform 0.3s; }
.btn:hover i { transform: translateX(4px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 8px 25px rgba(0, 201, 167, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-secondary:hover {
  background: var(--accent);
  color: #fff;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  color: #fff;
  border: none;
  padding: 14px 30px;
}
.btn-accent:hover {
  box-shadow: 0 8px 30px rgba(0, 201, 167, 0.35);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}

.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #fff url("../img/logo.png") center/contain no-repeat;
  border-radius: 10px;
  color: transparent;
  font-size: 0;
}

.logo-text {
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.2;
}

.logo-sub {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 3px;
  opacity: 0.7;
  text-transform: uppercase;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 400;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

.nav-link i {
  font-size: 0.65rem;
  transition: transform 0.3s;
}

.nav-item.has-dropdown:hover .nav-link i {
  transform: rotate(180deg);
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding-top: 10px;
}

.nav-item.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-inner {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 32px;
  display: flex;
  gap: 40px;
  min-width: 560px;
}

.dropdown-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-light);
  margin-bottom: 16px;
  font-weight: 600;
}

.dropdown-col a {
  display: block;
  padding: 8px 0;
  color: var(--text);
  font-size: 0.9rem;
  transition: var(--transition);
}

.dropdown-col a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

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

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 10;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a1628 0%, #132040 40%, #1a2d52 70%, #0f2847 100%);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 50%, rgba(0, 201, 167, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 80% 30%, rgba(74, 144, 217, 0.1) 0%, transparent 60%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  background: rgba(0, 201, 167, 0.12);
  border: 1px solid rgba(0, 201, 167, 0.25);
  border-radius: 50px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 32px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 24px;
}

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

.hero-desc {
  max-width: 700px;
  margin: 0 auto 40px;
  color: var(--text-on-dark-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.5);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ============================================
   Stats
   ============================================ */
.stats {
  background: var(--bg);
  padding: 60px 0;
  border-bottom: 1px solid var(--border-light);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number span {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 600;
  margin-left: 2px;
}

.stat-label {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: 100px 0;
}

.section-dark {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
}

.section-gradient {
  background: linear-gradient(135deg, #0d1f3c 0%, #162b4d 50%, #0a1628 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(0, 201, 167, 0.08);
  border: 1px solid rgba(0, 201, 167, 0.2);
  border-radius: 50px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.badge-light {
  background: rgba(0, 201, 167, 0.15);
  border-color: rgba(0, 201, 167, 0.3);
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-title.light { color: #fff; }

.section-desc {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-light);
  font-size: 1.05rem;
}

.section-desc.light { color: var(--text-on-dark-muted); }

/* ============================================
   Products Grid
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.product-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border);
  transition: var(--transition);
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

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

.product-card.featured {
  border-color: rgba(0, 201, 167, 0.3);
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.03), rgba(74, 144, 217, 0.03));
}

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 14px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50px;
}

.product-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.1), rgba(74, 144, 217, 0.1));
  border-radius: 14px;
  margin-bottom: 24px;
}

.product-icon i {
  font-size: 1.4rem;
  color: var(--accent);
}

.product-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.product-card > p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.product-features {
  margin-bottom: 20px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  color: var(--text);
  font-size: 0.9rem;
}

.product-features li i {
  color: var(--accent);
  font-size: 0.8rem;
}

.product-models {
  padding: 12px 0;
  margin-bottom: 20px;
  border-top: 1px solid var(--border-light);
  color: var(--text-lighter);
  font-size: 0.82rem;
}

/* ============================================
   Solutions Grid
   ============================================ */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
}

.solution-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0, 201, 167, 0.3);
  transform: translateY(-4px);
}

.solution-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.15), rgba(74, 144, 217, 0.15));
  border-radius: 14px;
  margin-bottom: 20px;
}

.solution-icon i {
  font-size: 1.3rem;
  color: var(--accent);
}

.solution-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.solution-card p {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================
   Scenarios / Tabs
   ============================================ */
.scenarios { background: var(--bg-light); }

.tab-buttons {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 28px;
  border: 2px solid var(--border);
  background: var(--bg);
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition);
  font-family: var(--font);
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tab-content {
  display: none;
  animation: fadeInUp 0.5s ease;
}

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.scenario-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.scenario-info h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
}

.scenario-info > p {
  color: var(--text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.scenario-info ul {
  margin-bottom: 32px;
}

.scenario-info ul li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text);
  font-size: 0.95rem;
}

.scenario-info ul li i {
  color: var(--accent);
}

.visual-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.visual-flow {
  display: flex;
  align-items: center;
  gap: 20px;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  color: var(--text-on-dark-muted);
  min-width: 100px;
  text-align: center;
  transition: var(--transition);
}

.flow-node i { font-size: 1.8rem; }
.flow-node span { font-size: 0.8rem; font-weight: 500; }

.flow-node.accent {
  background: rgba(0, 201, 167, 0.12);
  border-color: rgba(0, 201, 167, 0.3);
  color: var(--accent);
}

.flow-arrow {
  color: rgba(255,255,255,0.3);
  font-size: 1.2rem;
  animation: arrowPulse 2s infinite;
}

@keyframes arrowPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ============================================
   Technology Section
   ============================================ */
.tech-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.tech-info h2 {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.tech-info > p {
  color: var(--text-on-dark-muted);
  margin-bottom: 32px;
  line-height: 1.8;
  font-size: 1.05rem;
}

.tech-chips {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.tech-chip {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: var(--transition);
}

.tech-chip:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0, 201, 167, 0.3);
}

.tech-chip strong {
  display: block;
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tech-chip span {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
}

.tech-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-card-stack {
  position: relative;
  width: 320px;
  height: 320px;
}

.tech-floating-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 36px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  cursor: default;
}

.tech-floating-card:hover {
  background: rgba(0, 201, 167, 0.12);
  border-color: rgba(0, 201, 167, 0.4);
  transform: scale(1.08) !important;
}

.tech-floating-card i {
  font-size: 2rem;
  color: var(--accent);
}

.tech-floating-card span {
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}

.card-1 { top: 0; left: 20px; animation: float1 6s ease-in-out infinite; }
.card-2 { top: 10px; right: 10px; animation: float2 7s ease-in-out infinite; }
.card-3 { bottom: 30px; left: 0; animation: float3 5s ease-in-out infinite; }
.card-4 { bottom: 10px; right: 30px; animation: float4 8s ease-in-out infinite; }

@keyframes float1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(8px, -12px); }
}
@keyframes float2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-10px, 10px); }
}
@keyframes float3 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(12px, 8px); }
}
@keyframes float4 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-8px, -10px); }
}

/* ============================================
   CTA Section
   ============================================ */
.cta { padding: 100px 0; }

.cta-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
  border-radius: var(--radius-xl);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 201, 167, 0.12), transparent 60%);
  border-radius: 50%;
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(74, 144, 217, 0.1), transparent 60%);
  border-radius: 50%;
}

.cta-box h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-box p {
  color: var(--text-on-dark-muted);
  font-size: 1.05rem;
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--primary);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.7;
}

.footer-contact-info {
  margin-top: 24px;
}

.footer-contact-info p {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-on-dark-muted);
  font-size: 0.85rem;
  margin-top: 8px;
}

.footer-links h4 {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links a {
  display: block;
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding: 24px 0;
  color: var(--text-on-dark-muted);
  font-size: 0.82rem;
}

/* ============================================
   Product Detail Pages
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 30% 50%, rgba(0, 201, 167, 0.06), transparent),
    radial-gradient(ellipse 50% 50% at 70% 40%, rgba(74, 144, 217, 0.08), transparent);
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}

.page-hero p {
  color: var(--text-on-dark-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.page-breadcrumb {
  position: relative;
  margin-bottom: 24px;
}

.page-breadcrumb a,
.page-breadcrumb span {
  color: var(--text-on-dark-muted);
  font-size: 0.85rem;
}

.page-breadcrumb a:hover { color: var(--accent); }
.page-breadcrumb span.current { color: #fff; }

/* Features Bar */
.features-bar {
  padding: 60px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border-light);
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.feature-item:hover { background: var(--bg-light); }

.feature-item i {
  color: var(--accent);
  font-size: 0.9rem;
  margin-top: 4px;
  flex-shrink: 0;
}

.feature-item span {
  color: var(--text);
  font-size: 0.95rem;
}

/* Product Detail Cards */
.product-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 32px;
  padding: 80px 0;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  transition: var(--transition);
}

.detail-card:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.detail-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.detail-card .subtitle {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 20px;
}

.detail-card ul {
  margin-bottom: 24px;
}

.detail-card ul li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-light);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border-light);
}

.detail-card ul li:last-child { border-bottom: none; }

.detail-card ul li i {
  color: var(--accent);
  font-size: 0.75rem;
}

/* About Page */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 0;
}

.about-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 24px;
  text-align: center;
}

.about-content > p {
  color: var(--text-light);
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 40px;
  text-indent: 2em;
}

.about-section {
  margin-bottom: 40px;
}

.about-section h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.about-section h3 i { color: var(--accent); }

.about-section ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-light);
}

.about-section ul li i {
  color: var(--accent);
  font-size: 0.8rem;
  margin-top: 6px;
}

/* ============================================
   Scroll Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: 1fr 1fr; }
  .solutions-grid { grid-template-columns: 1fr 1fr; }
  .tech-content { grid-template-columns: 1fr; gap: 40px; }
  .tech-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .scenario-detail { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: var(--primary);
    padding: 100px 32px 40px;
    transition: right 0.4s ease;
    z-index: 5;
    overflow-y: auto;
  }

  .nav.active { right: 0; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 1.05rem;
  }

  .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    padding: 0;
    display: none;
  }

  .nav-item.has-dropdown.open .dropdown { display: block; }

  .dropdown-inner {
    flex-direction: column;
    gap: 20px;
    min-width: 0;
    padding: 16px;
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius);
    margin-top: 8px;
  }

  .dropdown-col h4 { color: var(--accent); }
  .dropdown-col a { color: var(--text-on-dark-muted); }
  .dropdown-col a:hover { color: var(--accent); }

  .header-actions .btn { display: none; }

  .products-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 0.95rem; }

  .cta-box { padding: 48px 24px; }
  .section { padding: 60px 0; }

  .product-detail-grid { grid-template-columns: 1fr; }

  .visual-flow { flex-direction: column; }
  .flow-arrow i { transform: rotate(90deg); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .tab-buttons { flex-direction: column; align-items: center; }
}

/* Mobile nav overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 4;
  opacity: 0;
  transition: opacity 0.3s;
}

.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* Particle effects */
.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 201, 167, 0.15);
  pointer-events: none;
}

/* ============================================
   Solutions Page - Solution Blocks
   ============================================ */
.solutions-overview {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.solution-block {
  display: flex;
  gap: 32px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  align-items: flex-start;
}

.solution-block:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.solution-block-icon {
  width: 64px;
  height: 64px;
  min-width: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.1), rgba(74, 144, 217, 0.1));
  border-radius: 16px;
}

.solution-block-icon i {
  font-size: 1.6rem;
  color: var(--accent);
}

.solution-block-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.solution-block-content p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.solution-tags span {
  padding: 6px 16px;
  background: rgba(0, 201, 167, 0.06);
  border: 1px solid rgba(0, 201, 167, 0.15);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--accent-dark);
  font-weight: 500;
}

/* ============================================
   Contact Grid
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  transition: var(--transition);
}

.contact-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0, 201, 167, 0.3);
  transform: translateY(-4px);
}

.contact-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.15), rgba(74, 144, 217, 0.15));
  border-radius: 16px;
  margin: 0 auto 20px;
}

.contact-icon i {
  font-size: 1.5rem;
  color: var(--accent);
}

.contact-card h3 {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--text-on-dark-muted);
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  .solution-block {
    flex-direction: column;
    padding: 24px;
  }

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

/* ============================================
   Honors Grid (Homepage)
   ============================================ */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  text-align: center;
}

.honor-item {
  padding: 16px 8px;
}

.honor-year {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.honor-text {
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .honors-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* ============================================
   TAP Reasons
   ============================================ */
.tap-reasons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tap-reason {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.tap-reason:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.tap-reason-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  min-width: 48px;
  opacity: 0.6;
}

.tap-reason-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.tap-reason-content p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
}

.tap-reason-content p strong {
  color: var(--text);
}

@media (max-width: 768px) {
  .tap-reasons {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Products Overview Grid (Homepage)
   ============================================ */
.products-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.product-overview-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.product-overview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--secondary));
  opacity: 0;
  transition: var(--transition);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.product-overview-card:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.product-overview-card:hover::before { opacity: 1; }

.product-overview-card.featured {
  border-color: rgba(0, 201, 167, 0.3);
  background: linear-gradient(135deg, rgba(0, 201, 167, 0.02), rgba(74, 144, 217, 0.02));
}

.product-overview-image {
  width: 100%;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: hidden;
}

.product-overview-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  padding: 0;
  background: transparent;
}

.product-overview-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 8px;
}

.product-overview-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.product-overview-speed {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.product-overview-card > p {
  color: var(--text-light);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.product-overview-models {
  font-size: 0.78rem;
  color: var(--text-lighter);
  margin-bottom: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

@media (max-width: 1024px) {
  .products-overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .products-overview-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Cases Highlight Grid
   ============================================ */
.cases-highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.case-highlight-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}

.case-highlight-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0, 201, 167, 0.3);
  transform: translateY(-3px);
}

.case-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(0, 201, 167, 0.15);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

.case-highlight-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.case-highlight-card p {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-highlight-card a {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-highlight-card a:hover { gap: 10px; }

.section-action {
  text-align: center;
}

@media (max-width: 768px) {
  .cases-highlight-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Customers Bar
   ============================================ */
.customers-bar {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.customer-item {
  padding: 16px 32px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--text);
  font-size: 1rem;
  transition: var(--transition);
}

.customer-item:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.customers-note {
  text-align: center;
  color: var(--text-light);
  font-size: 0.95rem;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   Product Nav Bar
   ============================================ */
.product-nav-bar {
  position: sticky;
  top: 80px;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.product-nav-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.product-nav-scroll::-webkit-scrollbar { display: none; }

.product-nav-item {
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.product-nav-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 201, 167, 0.04);
}

/* ============================================
   Product Highlights Tags
   ============================================ */
.product-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 48px;
}

.product-highlights span {
  padding: 8px 18px;
  background: rgba(0, 201, 167, 0.06);
  border: 1px solid rgba(0, 201, 167, 0.15);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-dark);
  font-weight: 500;
}

.product-note {
  text-align: center;
  color: var(--text-lighter);
  font-size: 0.85rem;
  margin-top: 24px;
}

/* ============================================
   Section Alt Background
   ============================================ */
.section-alt {
  background: var(--bg-light);
}

/* ============================================
   Function Tags
   ============================================ */
.func-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 48px;
}

/* products-box 页面标签高亮 */
.products-box-page .func-tags span {
  display: inline-block;
  padding: 8px 18px;
  background: rgba(0, 201, 167, 0.08);
  border: 1px solid rgba(0, 201, 167, 0.25);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-dark);
  font-weight: 600;
}

/* products-box 页面图片列表高度减少100（260 -> 160） */
.products-box-page .models-grid .product-image img {
  height: 160px;
}

.func-tag {
  padding: 8px 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
}

.func-tag.highlight {
  background: rgba(0, 201, 167, 0.08);
  border-color: rgba(0, 201, 167, 0.25);
  color: var(--accent-dark);
  font-weight: 600;
}

/* ============================================
   Product Table
   ============================================ */
.product-table-wrap {
  overflow-x: auto;
  margin-bottom: 48px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.product-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.product-table thead {
  background: var(--primary);
  color: #fff;
}

.product-table th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.82rem;
  white-space: nowrap;
}

.product-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

.product-table tbody tr:hover {
  background: rgba(0, 201, 167, 0.03);
}

.product-table td strong {
  color: var(--primary);
}

/* ============================================
   Spec Grid
   ============================================ */
.spec-section {
  margin-top: 48px;
}

.spec-section > h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
  text-align: center;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.spec-item {
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

.spec-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.spec-value {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .spec-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   NIC Intro
   ============================================ */
.nic-intro {
  max-width: 800px;
  margin: 0 auto 40px;
  padding: 24px 32px;
  background: var(--bg-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.nic-intro p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ============================================
   Bypass Content
   ============================================ */
.bypass-content {
  max-width: 800px;
  margin: 0 auto;
}

.bypass-text p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

.bypass-text h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

.bypass-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.bypass-mode {
  padding: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.bypass-mode strong {
  display: block;
  color: var(--text);
  margin-bottom: 8px;
}

.bypass-mode p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .bypass-modes {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Case Blocks
   ============================================ */
.case-block {
  max-width: 900px;
  margin: 0 auto;
}

.case-header {
  margin-bottom: 32px;
}

.case-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin-top: 12px;
}

.case-body {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.case-section h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.case-section h3 i {
  color: var(--accent);
}

.case-section p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 12px;
}

.case-section ul, .case-section ol {
  padding-left: 0;
}

.case-section ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  color: var(--text-light);
  font-size: 0.95rem;
}

.case-section ol {
  padding-left: 20px;
}

.case-section ol li {
  padding: 6px 0;
  color: var(--text-light);
  font-size: 0.95rem;
}

.case-section ol li strong {
  color: var(--text);
}

/* Case Flow Diagram */
.case-flow {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  margin-bottom: 12px;
}

.case-flow-step {
  text-align: center;
  padding: 16px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 140px;
}

.case-flow-step strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 4px;
}

.case-flow-step span {
  font-size: 0.78rem;
  color: var(--text-light);
}

.case-flow > i {
  color: var(--accent);
  font-size: 1rem;
}

@media (max-width: 768px) {
  .case-flow {
    flex-direction: column;
  }
  .case-flow > i {
    transform: rotate(90deg);
  }
}

/* Case Table */
.case-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.case-table thead {
  background: var(--primary);
  color: #fff;
}

.case-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.82rem;
}

.case-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

.case-table tbody tr:hover {
  background: rgba(0, 201, 167, 0.03);
}

/* ============================================
   Honors Timeline (About page)
   ============================================ */
.honors-timeline {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.timeline-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  transition: var(--transition);
}

.timeline-item:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(0, 201, 167, 0.3);
}

.timeline-year {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  min-width: 60px;
  text-align: center;
}

.timeline-content h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 4px;
}

/* ============================================
   Product Image & Placeholder
   ============================================ */
.product-image {
  position: relative;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--bg-light);
}

.product-image img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  object-position: center;
  background: #fff;
  padding: 12px;
  display: block;
}

.img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 220px;
  background: linear-gradient(135deg, #f0f3f7, #e8ecf1);
  border: 2px dashed #cdd5df;
  border-radius: var(--radius);
  color: #9aa5b8;
  padding: 24px;
  text-align: center;
}

.img-placeholder i {
  font-size: 2.5rem;
  opacity: 0.5;
}

.img-placeholder .img-path {
  font-size: 0.78rem;
  font-family: monospace;
  background: rgba(0,0,0,0.04);
  padding: 4px 12px;
  border-radius: 4px;
}

.img-placeholder .img-hint {
  font-size: 0.82rem;
}

/* Product detail page - hero with image */
.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 40px 0;
}

.product-hero-info h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
}

.product-hero-info .product-subtitle {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.product-hero-info .product-desc {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .product-hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Product model card (for sub-pages) */
.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.model-card:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.model-card-image {
  background: var(--bg-light);
}

.model-card-image .img-placeholder {
  min-height: 200px;
  border: none;
  border-radius: 0;
}

.model-card-image img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  padding: 20px;
  background: var(--bg-light);
}

.model-card-body {
  padding: 28px;
  text-align: center;
}

.model-card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.model-card-body .subtitle {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.model-card-body ul li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 6px 0;
  color: var(--text-light);
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-light);
}

.model-card-body ul li:last-child { border-bottom: none; }

.model-card-body ul li i {
  color: var(--accent);
  font-size: 0.65rem;
}

.model-card-footer {
  padding: 0 28px 28px;
}

/* Models grid */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.model-info {
  padding: 0 24px 24px;
  text-align: center;
}

.model-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.model-info .model-subtitle {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .models-grid {
    grid-template-columns: 1fr;
  }
}

/* Case detail page */
.case-detail-hero {
  background: var(--bg-light);
  padding: 40px;
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
}

.case-detail-hero .case-tag {
  margin-bottom: 16px;
}

.case-detail-hero h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
}

.case-detail-hero p {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.8;
}

.case-image-placeholder {
  margin: 32px 0;
}

.case-image-placeholder .img-placeholder {
  min-height: 280px;
}

.case-image-placeholder .product-image {
  max-width: 900px;
  margin: 0 auto;
}

.case-image-placeholder .product-image img {
  height: 320px;
}

/* Case nav links */
.case-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}

.case-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
}

.case-nav a:hover {
  gap: 12px;
}

/* Product overview cards (updated for overview page) */
.product-overview-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.product-overview-link .product-overview-card {
  cursor: pointer;
}

.product-overview-link:hover .product-overview-card {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

/* Case overview cards */
.cases-overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.case-overview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.case-overview-card:hover {
  border-color: rgba(0, 201, 167, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.case-overview-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  flex-grow: 0;
}

.case-overview-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.case-overview-card .card-link {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-overview-card:hover .card-link { gap: 10px; }