/* 力鼎科技 - 企业官网 */

:root {
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --violet-600: #7c3aed;
  --cyan-500: #06b6d4;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --font: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--slate-800);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600), var(--cyan-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.icon-sm { width: 18px; height: 18px; flex-shrink: 0; }
.icon-xs { width: 16px; height: 16px; }

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  padding: 12px 0;
  box-shadow: var(--shadow);
}

.header.scrolled .nav-links a { color: var(--slate-600); }
.header.scrolled .nav-links a:hover { color: var(--blue-600); }
.header.scrolled .logo-text { color: var(--slate-900); }
.header.scrolled .logo-domain { color: var(--slate-500); }

.nav { display: flex; align-items: center; justify-content: space-between; }

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600));
  border-radius: 10px;
  font-weight: 700;
  font-size: 11px;
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.logo-meta { display: flex; flex-direction: column; }
.logo-text { font-size: 1.1rem; font-weight: 700; color: #fff; line-height: 1.2; transition: color var(--transition); }
.logo-domain { font-size: 10px; letter-spacing: 0.1em; color: rgba(255,255,255,0.6); transition: color var(--transition); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 8px;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  transform: scale(1.2);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.nav-cta {
  margin-left: 8px !important;
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600)) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.nav-cta:hover {
  opacity: 0.92;
  background: linear-gradient(135deg, #1d4ed8, #6d28d9) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

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

.header.scrolled .nav-toggle span { background: var(--slate-800); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600));
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.btn-block { width: 100%; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 0;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0f172a 0%, #172554 40%, #2e1065 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 20%, transparent 90%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: pulseGlow 6s ease-in-out infinite;
}

.hero-glow-1 { top: 20%; left: 20%; width: 400px; height: 400px; background: rgba(59, 130, 246, 0.25); }
.hero-glow-2 { bottom: 20%; right: 15%; width: 320px; height: 320px; background: rgba(124, 58, 237, 0.2); animation-delay: 2s; }
.hero-glow-3 { top: 45%; right: 35%; width: 260px; height: 260px; background: rgba(6, 182, 212, 0.15); animation-delay: 4s; }

@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding-bottom: 140px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease;
}

.hero-badge svg { color: #facc15; }

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.stat-num {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #fff;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

.hero-wave {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 3;
  color: var(--white);
  line-height: 0;
}

.hero-wave svg { width: 100%; height: 80px; }

/* Sections */
.section { padding: 80px 0; }
.section-light { background: var(--white); }
.section-muted { background: var(--slate-50); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .text-left { text-align: left; }

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-tag-blue {
  background: #eff6ff;
  color: var(--blue-600);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 12px;
}

.section-title.text-left { text-align: left; }

.section-desc {
  color: var(--slate-500);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

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

.product-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-card-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s;
}

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

.product-blue .product-card-bg { background: linear-gradient(135deg, #eff6ff, #ecfeff); }
.product-violet .product-card-bg { background: linear-gradient(135deg, #f5f3ff, #faf5ff); }
.product-amber .product-card-bg { background: linear-gradient(135deg, #fffbeb, #fff7ed); }
.product-emerald .product-card-bg { background: linear-gradient(135deg, #ecfdf5, #f0fdfa); }

.product-card-inner { position: relative; padding: 32px 36px 28px; }

.product-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.product-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.product-card:hover .product-icon { transform: scale(1.08); }

.product-icon svg { width: 28px; height: 28px; }

.product-blue .product-icon { background: #dbeafe; color: var(--blue-600); }
.product-violet .product-icon { background: #ede9fe; color: var(--violet-600); }
.product-amber .product-icon { background: #fef3c7; color: #d97706; }
.product-emerald .product-icon { background: #d1fae5; color: #059669; }

.product-title { font-size: 1.35rem; font-weight: 700; color: var(--slate-900); }
.product-subtitle { font-size: 0.8rem; color: var(--slate-500); margin-top: 2px; }

.product-summary {
  color: var(--slate-600);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.feature-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--slate-700);
}

.feature-tag::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.product-blue .feature-tag::before { background: linear-gradient(135deg, var(--blue-500), var(--cyan-500)); }
.product-violet .feature-tag::before { background: linear-gradient(135deg, #8b5cf6, #a855f7); }
.product-amber .feature-tag::before { background: linear-gradient(135deg, #f59e0b, #f97316); }
.product-emerald .feature-tag::before { background: linear-gradient(135deg, #10b981, #14b8a6); }

.product-bar {
  height: 3px;
  opacity: 0;
  transition: opacity 0.5s;
}

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

.product-blue .product-bar { background: linear-gradient(90deg, var(--blue-500), var(--cyan-500)); }
.product-violet .product-bar { background: linear-gradient(90deg, #8b5cf6, #a855f7); }
.product-amber .product-bar { background: linear-gradient(90deg, #f59e0b, #f97316); }
.product-emerald .product-bar { background: linear-gradient(90deg, #10b981, #14b8a6); }

/* Tech Banner */
.section-tech { padding: 0 0 80px; }

.tech-banner {
  background: linear-gradient(135deg, #0f172a, #1e3a8a, #4c1d95);
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.tech-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.tech-banner-text { position: relative; z-index: 1; }
.tech-banner-text h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.tech-banner-text p { color: rgba(255,255,255,0.7); font-size: 0.95rem; }

.tech-items {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.tech-item {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 16px 20px;
  backdrop-filter: blur(8px);
  min-width: 140px;
}

.tech-item strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.tech-item span { font-size: 0.75rem; color: rgba(255,255,255,0.6); }

/* Scenarios */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scenario-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}

.scenario-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.scenario-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 8px;
}

.scenario-card p { font-size: 0.875rem; color: var(--slate-500); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--slate-700);
  margin-bottom: 16px;
}

.about-p.text-muted { color: var(--slate-500); margin-bottom: 32px; }

.values-list { display: flex; flex-direction: column; gap: 20px; }

.value-item {
  display: flex;
  gap: 16px;
}

.value-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue-600);
}

.value-icon svg { width: 24px; height: 24px; }

.value-item h4 { font-size: 1rem; font-weight: 700; color: var(--slate-900); margin-bottom: 4px; }
.value-item p { font-size: 0.875rem; color: var(--slate-500); line-height: 1.6; }

.about-visual { position: relative; }

.about-card-gradient {
  position: relative;
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600));
  border-radius: var(--radius-xl);
  padding: 40px;
  color: #fff;
  overflow: hidden;
}

.about-card-deco {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
}

.about-card-deco-1 { width: 160px; height: 160px; top: -40px; right: -40px; }
.about-card-deco-2 { width: 120px; height: 120px; bottom: -30px; left: -30px; }

.about-card-body { position: relative; z-index: 1; }

.about-brand { font-size: 3.5rem; font-weight: 700; line-height: 1; }
.about-brand-en { font-size: 1.1rem; color: rgba(255,255,255,0.75); margin-bottom: 24px; }
.about-divider { width: 64px; height: 3px; background: rgba(255,255,255,0.35); border-radius: 2px; margin-bottom: 24px; }

.about-highlights { list-style: none; margin-bottom: 32px; }

.about-highlights li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
}

.about-highlights .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan-500);
  flex-shrink: 0;
}

.about-card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.about-stat-num { display: block; font-size: 2rem; font-weight: 700; }
.about-stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); }

.float-badge {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  animation: float 4s ease-in-out infinite;
}

.float-badge-1 { top: -16px; right: -16px; }
.float-badge-2 { bottom: -16px; left: -16px; animation-delay: 1.5s; }

.float-badge-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}

.float-badge-icon.ai { background: linear-gradient(135deg, var(--blue-500), var(--cyan-500)); }
.float-badge-icon.rag { background: linear-gradient(135deg, var(--violet-600), #a855f7); }

.float-badge strong { display: block; font-size: 0.85rem; color: var(--slate-900); }
.float-badge small { font-size: 0.7rem; color: var(--slate-500); }

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

/* Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

.advantage-card {
  position: relative;
  text-align: center;
  padding: 32px 24px;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  overflow: hidden;
}

.advantage-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.advantage-watermark {
  position: absolute;
  top: 12px; right: 16px;
  font-size: 3rem;
  font-weight: 700;
  opacity: 0.06;
  line-height: 1;
}

.advantage-blue .advantage-watermark { color: var(--blue-600); }
.advantage-amber .advantage-watermark { color: #d97706; }
.advantage-violet .advantage-watermark { color: var(--violet-600); }
.advantage-emerald .advantage-watermark { color: #059669; }

.advantage-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--blue-600);
  transition: transform 0.3s;
}

.advantage-card:hover .advantage-icon { transform: scale(1.08); }
.advantage-icon svg { width: 32px; height: 32px; }

.advantage-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--slate-900); margin-bottom: 10px; }
.advantage-card p { font-size: 0.875rem; color: var(--slate-500); line-height: 1.6; }

/* Process */
.process-section { margin-top: 20px; }
.process-title { font-size: 1.75rem; font-weight: 700; color: var(--slate-900); margin-bottom: 8px; }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.process-step {
  position: relative;
  text-align: center;
}

.process-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-600), var(--violet-600));
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.process-step h4 { font-size: 1rem; font-weight: 700; color: var(--slate-900); margin-bottom: 8px; }
.process-step p { font-size: 0.85rem; color: var(--slate-500); }

.process-line {
  display: none;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #0f172a, #1e40af, #5b21b6);
  padding: 64px 0;
  color: #fff;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-text h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin-bottom: 8px; }
.cta-text p { color: rgba(255,255,255,0.7); font-size: 1rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-desc {
  color: var(--slate-500);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-list { list-style: none; }

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

.contact-list-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--blue-600);
}

.contact-list-icon svg { width: 22px; height: 22px; }

.contact-list .label { display: block; font-size: 0.8rem; color: var(--slate-500); margin-bottom: 2px; }
.contact-list a, .contact-list .value { font-weight: 600; color: var(--slate-900); text-decoration: none; }
.contact-list a.contact-phone { display: block; margin-top: 6px; }
.contact-list a:hover { color: var(--blue-600); }

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.form-top-bar {
  height: 4px;
  background: linear-gradient(90deg, var(--blue-600), var(--violet-600), var(--cyan-500));
}

.form-body { padding: 36px 40px; }

.form-body h3 { font-size: 1.5rem; font-weight: 700; color: var(--slate-900); margin-bottom: 8px; }
.form-body > p { font-size: 0.9rem; color: var(--slate-500); margin-bottom: 28px; line-height: 1.6; }

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--slate-200);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--slate-900);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-note { margin-top: 12px; font-size: 0.9rem; text-align: center; }
.form-note.success { color: #059669; }
.form-note.error { color: #dc2626; }
.form-privacy { font-size: 0.75rem; color: var(--slate-400); text-align: center; margin-top: 12px; }

/* Footer */
.footer {
  background: var(--slate-900);
  color: #fff;
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand strong { display: block; font-size: 1rem; }
.footer-brand span { font-size: 0.8rem; color: rgba(255,255,255,0.5); }

.footer-brand-col p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 400px;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-link:hover { color: #fff; }

.footer-col h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p { font-size: 0.85rem; color: rgba(255,255,255,0.4); }
.footer-icp { font-size: 0.75rem !important; }

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1024px) {
  .advantages-grid,
  .scenarios-grid,
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .float-badge { display: none; }
}

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

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 28px 28px;
    background: var(--white);
    border-left: 1px solid var(--slate-200);
    gap: 4px;
    transition: right var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open { right: 0; }
  .nav-links a { color: var(--slate-700) !important; width: 100%; }
  .nav-links a:hover { background: var(--slate-100); }

  .products-grid { grid-template-columns: 1fr; }
  .product-features { grid-template-columns: 1fr; }
  .advantages-grid,
  .scenarios-grid,
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .tech-banner { flex-direction: column; padding: 28px; }
  .tech-items { width: 100%; }
  .tech-item { flex: 1; min-width: calc(50% - 8px); }
  .hero-stats { gap: 32px; }
  .section { padding: 56px 0; }
  .form-body { padding: 28px 24px; }
  .cta-inner { flex-direction: column; text-align: center; }
}