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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --dark: #0f172a;
  --dark-soft: #1e293b;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --bg: #f8fafc;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--dark);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  transition: box-shadow 0.3s;
}

.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--dark);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
}

.nav { display: flex; align-items: center; gap: 32px; }

.nav a {
  font-size: 0.95rem;
  color: var(--gray);
  font-weight: 500;
  transition: color 0.2s;
}

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

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

.header-phone {
  font-size: 0.9rem;
  color: var(--gray);
}

.header-phone strong { color: var(--primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
}

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

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

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(6, 182, 212, 0.15);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 50px;
  color: var(--accent-light);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: white;
  line-height: 1.25;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(90deg, #22d3ee, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--gray-light);
  margin-bottom: 36px;
  max-width: 520px;
}

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

.hero-visual {
  position: relative;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(8px);
}

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

.platform-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.platform-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.platform-icon.p1 { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.platform-icon.p2 { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.platform-icon.p3 { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.platform-icon.p4 { background: linear-gradient(135deg, #f59e0b, #d97706); }

.platform-item span {
  color: white;
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-badge {
  position: absolute;
  bottom: -20px;
  right: -10px;
  background: white;
  padding: 16px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-badge-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.hero-badge-text {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.4;
}

/* Section common */
section { padding: 100px 0; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-header p {
  color: var(--gray);
  font-size: 1.05rem;
}

/* Features */
.features { background: var(--white); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

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

.feature-num {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(37, 99, 235, 0.08);
  position: absolute;
  top: 12px;
  right: 16px;
  line-height: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray);
}

/* Why us */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.why-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.why-content > p {
  color: var(--gray);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.why-list li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.why-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: 700;
}

.why-list h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.why-list p {
  font-size: 0.9rem;
  color: var(--gray);
}

.why-visual {
  background: var(--gradient);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: white;
  position: relative;
  overflow: hidden;
}

.why-visual::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.why-visual h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  position: relative;
}

.why-visual p {
  opacity: 0.9;
  margin-bottom: 32px;
  position: relative;
}

.why-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  position: relative;
}

.why-stat {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.why-stat-num {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.why-stat-label {
  font-size: 0.8rem;
  opacity: 0.85;
}

/* Process */
.process { background: var(--white); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.process-step {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: all 0.3s;
  position: relative;
}

.process-step:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  color: white;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.process-step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--gray);
}

/* Stats bar */
.stats-bar {
  background: var(--dark);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item-num span { font-size: 1.5rem; }

.stat-item-label {
  color: var(--gray-light);
  font-size: 0.95rem;
}

/* Compare */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.compare-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: all 0.3s;
}

.compare-card:hover {
  box-shadow: var(--shadow-lg);
}

.compare-card.highlight {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.03) 0%, white 100%);
}

.compare-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.compare-badge {
  padding: 2px 10px;
  background: var(--gradient);
  color: white;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.compare-card ul li {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.92rem;
  color: var(--gray);
}

.compare-card ul li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.compare-card.negative ul li::before {
  content: '✗';
  color: #ef4444;
}

/* Services */
.services { background: var(--white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  text-align: center;
  transition: all 0.3s;
  border: 1px solid transparent;
}

.service-card:hover {
  background: white;
  border-color: rgba(37, 99, 235, 0.15);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(37, 99, 235, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.88rem;
  color: var(--gray);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  background: var(--gradient);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-image-inner {
  text-align: center;
  color: white;
  padding: 40px;
}

.about-image-inner h3 {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.about-image-inner p { opacity: 0.9; }

.about-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.about-content > p {
  color: var(--gray);
  margin-bottom: 16px;
  font-size: 1rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.about-tag {
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Cases */
.cases { background: var(--bg); }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: all 0.3s;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.case-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.case-thumb.c1 { background: linear-gradient(135deg, #dbeafe, #bfdbfe); }
.case-thumb.c2 { background: linear-gradient(135deg, #cffafe, #a5f3fc); }
.case-thumb.c3 { background: linear-gradient(135deg, #ede9fe, #ddd6fe); }
.case-thumb.c4 { background: linear-gradient(135deg, #fef3c7, #fde68a); }
.case-thumb.c5 { background: linear-gradient(135deg, #dcfce7, #bbf7d0); }
.case-thumb.c6 { background: linear-gradient(135deg, #fce7f3, #fbcfe8); }

.case-body { padding: 24px; }

.case-tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.case-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.case-body p {
  font-size: 0.85rem;
  color: var(--gray);
}

/* News */
.news { background: var(--white); }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.06);
  overflow: hidden;
  transition: all 0.3s;
}

.news-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(37, 99, 235, 0.15);
}

.news-date {
  padding: 20px 24px 0;
  font-size: 0.8rem;
  color: var(--gray-light);
}

.news-body { padding: 12px 24px 24px; }

.news-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.5;
  transition: color 0.2s;
}

.news-card:hover h3 { color: var(--primary); }

.news-body p {
  font-size: 0.88rem;
  color: var(--gray);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* CTA */
.cta {
  background: var(--gradient);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cta h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  color: white;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
}

.cta p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  margin-bottom: 32px;
  position: relative;
}

.cta .btn-white { position: relative; }

/* Footer */
.footer {
  background: var(--dark);
  color: var(--gray-light);
  padding: 60px 0 24px;
}

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

.footer-brand .logo { color: white; margin-bottom: 16px; }

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-links {
  width: 90%;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  margin-bottom: 8px;
  line-height: 2;
  font-size: 0.8rem;
  color: var(--gray-light);
}

.footer-links-label {
  color: rgba(255, 255, 255, 0.7);
  margin-right: 4px;
}

.footer-links a {
  color: var(--gray-light);
  transition: color 0.2s;
}

.footer-links a::after {
  content: '|';
  margin: 0 6px;
  color: rgba(255, 255, 255, 0.15);
}

.footer-links a:last-child::after {
  content: none;
}

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

.footer-links a.active {
  color: var(--accent-light);
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

.footer-bottom-right {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.footer-bottom a {
  color: var(--gray-light);
  transition: color 0.2s;
}

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

/* Floating widget */
.float-widget {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s;
}

.float-btn:hover { transform: scale(1.08); }

.float-btn.phone { background: var(--primary); color: white; }
.float-btn.wechat { background: #07c160; color: white; }
.float-btn.top { background: white; color: var(--dark); font-size: 1rem; display: none; }

.float-btn.top.show { display: flex; }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

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

.modal {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.modal h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.modal p { color: var(--gray); margin-bottom: 8px; }

.modal .wechat-id {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin: 16px 0;
}

.modal-close {
  margin-top: 20px;
}

/* GEO System */
.system {
  background: linear-gradient(180deg, #f0f7ff 0%, var(--bg) 100%);
}

.system-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.system-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.system-main h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.system-main > p {
  color: var(--gray);
  margin-bottom: 28px;
  font-size: 1rem;
  line-height: 1.8;
}

.system-points {
  margin-bottom: 32px;
}

.system-points li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.system-points li:last-child { border-bottom: none; }

.system-points strong {
  font-size: 1rem;
  color: var(--dark);
}

.system-points span {
  font-size: 0.9rem;
  color: var(--gray);
}

.system-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  background: var(--dark);
  border-radius: var(--radius-lg);
  color: white;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.flow-step-highlight {
  background: rgba(37, 99, 235, 0.25);
  border-color: rgba(96, 165, 250, 0.4);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.2);
}

.flow-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.flow-label {
  font-weight: 600;
  font-size: 0.95rem;
}

.flow-desc {
  font-size: 0.8rem;
  color: var(--gray-light);
  margin-left: auto;
  text-align: right;
}

.flow-arrow {
  text-align: center;
  color: var(--accent-light);
  font-size: 1.2rem;
  opacity: 0.6;
}

.system-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.system-card {
  padding: 28px 24px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: all 0.3s;
}

.system-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.15);
}

.system-card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.system-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.system-card p {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.7;
}

.feature-card-highlight,
.service-card-highlight {
  border-color: rgba(37, 99, 235, 0.2);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.04) 0%, var(--bg) 100%);
}

.feature-card-highlight .feature-icon,
.service-card-highlight .service-icon {
  background: var(--gradient);
  color: white;
  font-size: 1.5rem;
}

.service-card-highlight .service-icon {
  background: var(--gradient);
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid,
  .services-grid,
  .system-cards { grid-template-columns: repeat(2, 1fr); }
  .system-showcase { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav, .header-contact .header-phone { display: none; }

  .menu-toggle { display: flex; }

  .nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  }

  .hero-grid,
  .why-grid,
  .about-grid { grid-template-columns: 1fr; }

  .hero { padding: 120px 0 80px; }

  .hero-visual { margin-top: 20px; }

  .hero-badge { position: static; margin-top: 20px; }

  .features-grid,
  .services-grid,
  .system-cards,
  .cases-grid,
  .news-grid,
  .compare-grid,
  .stats-grid { grid-template-columns: 1fr; }

  .process-steps { grid-template-columns: 1fr; }

  section { padding: 60px 0; }

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