/* ========================================
   新异改善 - 企业官网样式
   风格：简约大气、专业、现代
======================================== */

/* CSS Reset & Variables */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #1a3a5c;
  --primary-light: #2563a8;
  --accent: #e8862a;
  --accent-light: #f4a44a;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #9ca3af;
  --bg-white: #ffffff;
  --bg-light: #f7f9fc;
  --bg-section: #f0f4f8;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.10);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Keyboard users can reach the page content without traversing every menu. */
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2000;
  padding: 0.65rem 1rem;
  color: var(--bg-white);
  background: var(--primary);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 3px;
}
#main-content, #contactForm, .series-section { scroll-margin-top: 90px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
h4 { font-size: 1.15rem; }

p { line-height: 1.8; color: var(--text-secondary); }

a { color: inherit; text-decoration: none; }

/* ========== Layout ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
}

.section-alt {
  background: var(--bg-light);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(232, 134, 42, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-desc {
  max-width: 600px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.text-center { text-align: center; }
.text-center .section-desc { margin-left: auto; margin-right: auto; }

/* ========== Navigation ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-mark svg {
  width: 22px;
  height: 22px;
  fill: white;
  color: white;
}

.logo-mark .logo-icon {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
}

.logo-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(26, 58, 92, 0.06);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-cta {
  background: var(--primary) !important;
  color: white !important;
  padding: 0.5rem 1.2rem !important;
  border-radius: 6px !important;
  font-weight: 500;
}

.nav-cta:hover {
  background: var(--primary-light) !important;
  color: white !important;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 32px;
  background: rgba(26, 58, 92, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  font-family: var(--font-sans);
  transition: var(--transition);
  margin-left: 0.5rem;
}

.lang-toggle:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

html.lang-switching * {
  transition: opacity 0.15s ease;
}

html.lang-switching {
  opacity: 0.85;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========== Page Content ========== */
.page-content {
  padding-top: 70px;
}

/* ========== Hero Section ========== */
.hero {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #f7f9fc 0%, #eef2f8 60%, #e8eef8 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(37, 99, 168, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 40%;
  height: 60%;
  background: radial-gradient(ellipse at center, rgba(232, 134, 42, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  padding: 5rem 0;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-title .highlight {
  color: var(--primary-light);
  position: relative;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.6;
}

.hero-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--primary);
  color: white;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 168, 0.25);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: transparent;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(26, 58, 92, 0.04);
  transform: translateY(-1px);
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat-item strong {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-item span {
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-stack {
  position: relative;
  width: 100%;
  max-width: 440px;
}

.hero-main-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  position: relative;
  z-index: 3;
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.hero-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: #059669;
  background: #d1fae5;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.status-badge::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: #059669;
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.tool-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.75rem;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.tool-icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.75rem;
  color: white;
  font-weight: 700;
}

.tool-icon.orange { background: var(--accent); }
.tool-icon.teal { background: #0891b2; }
.tool-icon.green { background: #059669; }

.tool-name {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
}

.hero-float-card {
  position: absolute;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 0.9rem 1.2rem;
  border: 1px solid var(--border);
  animation: float 4s ease-in-out infinite;
}

.hero-float-card:nth-child(2) {
  top: -30px;
  right: -20px;
  z-index: 4;
  animation-delay: -1s;
}

.hero-float-card:nth-child(3) {
  bottom: -20px;
  left: -20px;
  z-index: 4;
  animation-delay: -2.5s;
}

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

.float-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.float-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
}

.float-sub {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.bg-grid {
  position: absolute;
  inset: -20px;
  background-image: 
    linear-gradient(rgba(37, 99, 168, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 168, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  border-radius: var(--radius-lg);
  z-index: 1;
}

/* ========== Features / Services Grid ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(26, 58, 92, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========== Product Series ========== */
.series-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3rem;
  background: var(--bg-light);
  padding: 0.4rem;
  border-radius: var(--radius-md);
  width: fit-content;
}

.tab-btn {
  padding: 0.65rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.tab-btn.active {
  background: var(--bg-white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.products-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: start;
}

.series-info {
  background: var(--primary);
  color: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky;
  top: 90px;
}

.series-info h3 {
  color: white;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.series-info p {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  line-height: 1.7;
}

.series-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(232, 134, 42, 0.15);
  padding: 0.3rem 0.7rem;
  border-radius: 100px;
  margin-bottom: 1rem;
}

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

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.product-card:hover {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 168, 0.08);
  transform: translateY(-1px);
}

.product-card-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-light);
  background: rgba(37, 99, 168, 0.08);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.6rem;
}

.product-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.product-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== Consulting Modes ========== */
.consulting-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.consulting-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.consulting-card::after {
  content: attr(data-step);
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(26, 58, 92, 0.05);
  line-height: 1;
  letter-spacing: -0.05em;
}

.consulting-phase {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.consulting-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.consulting-card p {
  font-size: 0.88rem;
  line-height: 1.7;
}

.consulting-duration {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

/* ========== About Page ========== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-main-img {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-img-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background-image: repeating-linear-gradient(
    45deg,
    white 0,
    white 1px,
    transparent 0,
    transparent 50%
  );
  background-size: 30px 30px;
}

.about-img-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
}

.about-img-content h3 {
  color: white;
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.about-img-content p {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
}

.about-stat-card {
  position: absolute;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 1rem 1.4rem;
  border: 1px solid var(--border);
}

.about-stat-card:first-of-type {
  bottom: -20px;
  right: -20px;
}

.about-stat-card:last-of-type {
  top: -15px;
  left: -15px;
}

.about-stat-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.about-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.about-text .section-label { margin-top: 0; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.value-card {
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--bg-white);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.value-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.value-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  display: block;
}

.value-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.85rem;
  line-height: 1.65;
}

/* ========== Team ========== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.team-card {
  text-align: center;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--bg-white);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: white;
}

.team-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.team-role {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.team-card p {
  font-size: 0.84rem;
  line-height: 1.65;
}

/* ========== Contact Page ========== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.contact-info p {
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(26, 58, 92, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-text strong {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

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

.contact-form {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.contact-form h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.contact-form .form-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-light);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(37, 99, 168, 0.1);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.btn-submit {
  width: 100%;
  padding: 0.9rem;
  background: var(--primary);
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-submit:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 168, 0.25);
}

/* ========== CTA Banner ========== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, #1e4d8a 100%);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 50%;
  height: 160%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.04) 0%, transparent 60%);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  right: -10%;
  width: 50%;
  height: 160%;
  background: radial-gradient(ellipse, rgba(232, 134, 42, 0.12) 0%, transparent 60%);
}

.cta-banner .container { position: relative; z-index: 1; }

.cta-banner h2 {
  color: white;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

.cta-banner .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  font-size: 1rem;
  padding: 1rem 2.4rem;
}

.cta-banner .btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
}

.cta-banner .btn-secondary {
  color: white;
  border-color: rgba(255,255,255,0.35);
}

.cta-banner .btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.6);
}

/* ========== Footer ========== */
.footer {
  background: #111827;
  color: rgba(255,255,255,0.7);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 1rem;
  color: rgba(255,255,255,0.5);
}

.footer-logo-name {
  font-size: 1rem;
  font-weight: 700;
  color: white;
}

.footer-logo-sub {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
}

.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-col a:hover { color: white; }

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: 0 0 1.5rem;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

.footer-icp {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

/* ========== Page Hero (inner pages) ========== */
.page-hero {
  background: linear-gradient(160deg, var(--primary) 0%, #1e4d8a 100%);
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(255,255,255,0.02) 0,
    rgba(255,255,255,0.02) 1px,
    transparent 0,
    transparent 50%
  );
  background-size: 40px 40px;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero h1 {
  text-wrap: balance;
  color: white;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.page-hero p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}
.page-hero h1 span { display: inline-block; }

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}

.breadcrumb a {
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.breadcrumb a:hover { color: white; }

.breadcrumb-sep { color: rgba(255,255,255,0.3); }

/* ========== Divider ========== */
.divider {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
  margin: 1rem 0 1.5rem;
}

.divider.center {
  margin: 1rem auto 1.5rem;
}

/* ========== Animations ========== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger delay */
.fade-up:nth-child(1) { transition-delay: 0ms; }
.fade-up:nth-child(2) { transition-delay: 80ms; }
.fade-up:nth-child(3) { transition-delay: 160ms; }
.fade-up:nth-child(4) { transition-delay: 240ms; }
.fade-up:nth-child(5) { transition-delay: 320ms; }
.fade-up:nth-child(6) { transition-delay: 400ms; }

/* ========== Success Toast ========== */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #059669;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 9999;
}

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

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about-intro { gap: 3rem; }
}

@media (max-width: 768px) {
  body.nav-menu-open { overflow-anchor: none; }
  .nav-menu-open .navbar { position: relative; }
  .nav-menu-open .navbar-inner { height: auto; display: grid; grid-template-columns: 1fr auto auto; grid-template-rows: 70px auto; gap: 0 1rem; }
  .nav-menu-open .logo { grid-column: 1; grid-row: 1; }
  .nav-menu-open .lang-toggle { grid-column: 2; grid-row: 1; }
  .nav-menu-open .menu-toggle { grid-column: 3; grid-row: 1; }
  .nav-menu-open .nav-links { position: static; grid-column: 1 / -1; grid-row: 2; }
  .nav-menu-open .page-content { padding-top: 0; }
  .section { padding: 4rem 0; }
  .container { padding: 0 1.25rem; }
  
  .menu-toggle { display: flex; }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; width: 100%; }
  
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
    padding: 3rem 0;
  }
  
  .hero-desc { max-width: 100%; margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-label { justify-content: center; }
  .hero-title .highlight::after { display: none; }
  
  .hero-visual { display: none; }
  
  .features-grid { grid-template-columns: 1fr; }
  .products-layout { grid-template-columns: 1fr; }
  .series-info { position: static; }
  .products-grid { grid-template-columns: 1fr; }
  .consulting-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  
  .footer-bottom { flex-direction: column; text-align: center; }

  .series-tabs {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
  }
}

@media (max-width: 480px) {
  .values-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}