/* ========================================
   智汇星脉官网 - 主样式表
   ======================================== */

/* ===== CSS Variables ===== */
:root {
  --primary: #6D28D9;
  --primary-dark: #4C1D95;
  --primary-light: #F3E8FF;
  --accent: #FF6B35;
  --accent-light: #FFF3EC;
  --success: #10B981;
  --dark: #1a1a2e;
  --gray-900: #212529;
  --gray-700: #495057;
  --gray-500: #6c757d;
  --gray-300: #dee2e6;
  --gray-100: #f8f9fa;
  --white: #ffffff;
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  color: var(--gray-700);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 24px; border-radius: 8px; font-weight: 500;
  font-size: 0.95rem; border: 2px solid transparent;
  cursor: pointer; transition: var(--transition);
  white-space: nowrap;
}
.btn-sm { padding: 8px 18px; font-size: 0.875rem; }
.btn-lg { padding: 14px 36px; font-size: 1.05rem; }
.btn-block { display: flex; width: 100%; }
.btn-primary {
  background: var(--primary); color: var(--white); border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26,115,232,0.3); }
.btn-outline {
  background: transparent; color: var(--primary); border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
.btn-white {
  background: var(--white); color: var(--primary); border-color: var(--white);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline-white {
  background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover { background: var(--white); color: var(--primary); }

/* ===== Navbar ===== */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: var(--transition);
}
header.scrolled { background: rgba(255,255,255,0.98); border-bottom-color: var(--gray-300); box-shadow: 0 2px 12px rgba(0,0,0,0.05); }
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 80px;
}
.logo { display: flex; align-items: center; gap: 0; }
.logo-img { height: 40px; width: auto; display: block; }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-size: 0.95rem; font-weight: 500; color: var(--gray-700);
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 0;
  height: 2px; background: var(--primary); transition: var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }

/* 下拉菜单 */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: 100%; left: 0;
  background: var(--white); border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  min-width: 180px; padding: 8px 0;
  opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all 0.3s;
  list-style: none; z-index: 1001;
}
.dropdown:hover .dropdown-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown-menu a {
  display: block; padding: 12px 20px; color: var(--gray-700);
  font-weight: 500; transition: var(--transition);
}
.dropdown-menu a:hover {
  background: var(--gray-50); color: var(--primary);
}
.dropdown-menu a::after { display: none; }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.hamburger {
  display: none; flex-direction: column; gap: 5px; background: none;
  border: none; cursor: pointer; padding: 8px;
}
.hamburger span {
  display: block; width: 24px; height: 2.5px; background: var(--gray-900);
  border-radius: 2px; transition: var(--transition);
}
.mobile-menu {
  display: none; position: absolute; top: 72px; left: 0; right: 0;
  background: var(--white); padding: 20px 24px; box-shadow: var(--shadow);
  flex-direction: column; gap: 16px;
}
.mobile-menu.active { display: flex; }
.mobile-menu a { font-size: 1rem; font-weight: 500; padding: 8px 0; color: var(--gray-700); }

/* ===== Hero ===== */
#hero {
  position: relative; min-height: 100vh; display: flex;
  align-items: center; justify-content: center; overflow: hidden;
  background: linear-gradient(135deg, #1e0a3c 0%, #3b0764 40%, #2d1050 100%);
}
#heroCanvas {
  position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.4;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(10,22,40,0.6) 100%);
}
.hero-content {
  position: relative; z-index: 2; text-align: center;
  padding: 120px 24px 80px; max-width: 800px;
}
.hero-badge {
  display: inline-block; background: rgba(255,107,53,0.15); color: var(--accent);
  padding: 6px 20px; border-radius: 20px; font-size: 0.9rem; font-weight: 500;
  margin-bottom: 24px; border: 1px solid rgba(255,107,53,0.2);
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem); color: var(--white);
  font-weight: 900; line-height: 1.2; margin-bottom: 20px;
}
.highlight {
  background: linear-gradient(120deg, var(--accent), #FF9A5C);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem); color: rgba(255,255,255,0.7);
  margin-bottom: 36px; max-width: 600px; margin-left: auto; margin-right: auto;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  padding: 32px 0; border-top: 1px solid rgba(255,255,255,0.1);
}
.stat-item { text-align: center; }
.stat-number {
  font-size: 2rem; font-weight: 900; color: var(--white);
  line-height: 1; margin-bottom: 4px;
}
.stat-number::after { content: '+'; font-weight: 500; }
.stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.4); font-size: 0.8rem;
}
.mouse {
  width: 24px; height: 38px; border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px; position: relative;
}
.wheel {
  width: 4px; height: 8px; background: rgba(255,255,255,0.5);
  border-radius: 2px; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  animation: scroll-wheel 2s ease-in-out infinite;
}
@keyframes scroll-wheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

/* ===== Sections ===== */
.section { padding: 100px 0; }
.section-alt { background: var(--gray-100); }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  padding: 4px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 500;
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem); color: var(--gray-900);
  font-weight: 700; margin-bottom: 12px;
}
.section-header p { font-size: 1.1rem; color: var(--gray-500); max-width: 600px; margin: 0 auto; }

/* ===== Capabilities ===== */
.capabilities-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.capability-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 40px 32px;
  border: 1px solid var(--gray-300); transition: var(--transition);
  position: relative; overflow: hidden;
}
.capability-card:hover {
  transform: translateY(-8px); box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.capability-card.featured {
  background: linear-gradient(135deg, #6D28D9, #8B5CF4); color: var(--white);
  border-color: transparent;
}
.capability-card.featured .capability-icon svg rect:first-child { fill: rgba(255,255,255,0.15); }
.capability-card.featured .capability-icon svg { stroke: white !important; fill: rgba(255,255,255,0.15) !important; }
.capability-card.featured h3 { color: var(--white); }
.capability-card.featured p { color: rgba(255,255,255,0.8); }
.capability-card.featured .capability-list li { color: rgba(255,255,255,0.9); }
.capability-card.featured .card-link { color: rgba(255,255,255,0.9); }
.capability-badge {
  position: absolute; top: 20px; right: 20px; background: rgba(255,255,255,0.2);
  color: var(--white); padding: 4px 12px; border-radius: 12px; font-size: 0.75rem;
}
.capability-icon { margin-bottom: 24px; }
.capability-card h3 { font-size: 1.35rem; color: var(--gray-900); margin-bottom: 12px; font-weight: 700; }
.capability-card p { color: var(--gray-500); margin-bottom: 20px; font-size: 0.95rem; }
.capability-list { margin-bottom: 24px; }
.capability-list li {
  padding: 6px 0; font-size: 0.9rem; color: var(--gray-700);
  padding-left: 20px; position: relative;
}
.capability-list li::before {
  content: ''; position: absolute; left: 0; top: 50%;
  width: 8px; height: 8px; border-radius: 2px;
  background: var(--primary); opacity: 0.4;
  transform: translateY(-50%) rotate(45deg);
}
.capability-card.featured .capability-list li::before {
  background: white; opacity: 0.5;
}
.card-link { color: var(--primary); font-weight: 500; font-size: 0.9rem; }
.card-link:hover { color: var(--accent); }

/* ===== Products ===== */
.products-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.product-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--gray-300); transition: var(--transition);
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary);
}
.product-visual {
  padding: 48px 32px; display: flex; justify-content: center; align-items: center;
  min-height: 200px;
  background: linear-gradient(135deg, rgba(109,40,217,0.08) 0%, rgba(139,92,246,0.04) 100%);
}
.product-card:nth-child(2) .product-visual {
  background: linear-gradient(135deg, rgba(255,107,53,0.08) 0%, rgba(255,154,92,0.04) 100%);
}
.product-card:nth-child(3) .product-visual {
  background: linear-gradient(135deg, rgba(16,185,129,0.08) 0%, rgba(52,211,153,0.04) 100%);
}
.product-card:nth-child(4) .product-visual {
  background: linear-gradient(135deg, rgba(109,40,217,0.08) 0%, rgba(139,92,246,0.04) 100%);
}
.product-info { padding: 0 32px 32px; }
.product-tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  padding: 3px 12px; border-radius: 12px; font-size: 0.8rem; font-weight: 500;
  margin-bottom: 12px;
}
.product-tag-new { background: #FFF3E0; color: #E65100; }
.product-info h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 10px; font-weight: 700; }
.product-info p { font-size: 0.9rem; color: var(--gray-500); margin-bottom: 16px; }
.product-features { display: flex; flex-wrap: wrap; gap: 8px; }
.feature-tag {
  background: var(--gray-100); padding: 4px 12px; border-radius: 6px;
  font-size: 0.8rem; color: var(--gray-700);
}

/* ===== Partners ===== */
.partners-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 32px;
  align-items: center;
}
.partner-logo {
  display: flex; align-items: center; justify-content: center;
  padding: 20px 16px; background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--gray-300); transition: var(--transition);
}
.partner-logo:hover {
  transform: translateY(-4px); box-shadow: var(--shadow);
  border-color: var(--primary);
}
.partner-logo img {
  height: 70px; width: auto; opacity: 0.6; transition: var(--transition);
}
.partner-logo:hover img { opacity: 1; }

/* ===== Solutions ===== */
.solutions-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.solution-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--gray-300); transition: var(--transition);
  display: flex; flex-direction: column; position: relative;
}
.solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.solution-card-primary {
  background: linear-gradient(135deg, #1e0a3c, #4c1d95);
  color: var(--white); border-color: transparent;
}
.solution-card-secondary {
  background: linear-gradient(135deg, rgba(16,185,129,0.05), rgba(52,211,153,0.02));
  border-color: rgba(16,185,129,0.25);
}
.solutions-grid .solution-card:nth-child(2) {
  background: linear-gradient(135deg, rgba(16,185,129,0.05), rgba(52,211,153,0.02));
  border-color: rgba(16,185,129,0.25);
}
.solutions-grid .solution-card:nth-child(3) {
  background: linear-gradient(135deg, rgba(255,107,53,0.05), rgba(255,154,92,0.02));
  border-color: rgba(255,107,53,0.25);
}
.solutions-grid .solution-card:nth-child(4) {
  background: linear-gradient(135deg, rgba(109,40,217,0.05), rgba(139,92,246,0.02));
  border-color: rgba(109,40,217,0.25);
}
.solution-badge {
  position: absolute; top: 20px; right: 20px; background: rgba(255,107,53,0.2);
  color: var(--accent); padding: 6px 14px; border-radius: 16px; font-size: 0.8rem; font-weight: 600;
}
.solution-visual {
  padding: 40px 32px; display: flex; justify-content: center; align-items: center;
  min-height: 200px; background: rgba(255,255,255,0.05); border-bottom: 1px solid rgba(0,0,0,0.05);
}
.solution-content { padding: 32px; flex: 1; display: flex; flex-direction: column; }
.solution-card-primary .solution-content { color: var(--white); }
.solution-card h3 { font-size: 1.35rem; margin-bottom: 12px; font-weight: 700; }
.solution-card p { font-size: 0.95rem; opacity: 0.85; margin-bottom: 20px; line-height: 1.6; }
.solution-card-primary p { color: rgba(255,255,255,0.8); }
.solution-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.solution-feature { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.sf-icon svg { flex-shrink: 0; display: block; }
.solution-list li {
  padding: 8px 0 8px 18px; font-size: 0.95rem; color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100); position: relative;
}
.solution-list li::before {
  content: ''; position: absolute; left: 0; top: 16px;
  width: 7px; height: 7px; border-radius: 2px;
  background: var(--primary); opacity: 0.4;
  transform: rotate(45deg);
}
.solution-list li:last-child { border-bottom: none; }
.solution-visual { display: flex; align-items: flex-end; margin-top: 24px; }

/* ===== Cases ===== */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.case-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--gray-300); transition: var(--transition);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-metric {
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  padding: 28px; text-align: center;
}
.metric-value { font-size: 2.5rem; font-weight: 900; color: var(--white); display: block; }
.metric-label { font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.case-body { padding: 24px; }
.case-body h4 { font-size: 1.1rem; color: var(--gray-900); margin-bottom: 8px; }
.case-body p { font-size: 0.9rem; color: var(--gray-500); }
.case-tags { padding: 0 24px 24px; display: flex; gap: 8px; }
.case-tag {
  background: var(--primary-light); color: var(--primary);
  padding: 3px 10px; border-radius: 6px; font-size: 0.8rem;
}

/* ===== About ===== */
.about-grid {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: start;
}
.about-main h3 { font-size: 1.5rem; color: var(--gray-900); margin-bottom: 20px; }
.about-main p { margin-bottom: 16px; font-size: 0.95rem; }
.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.value-item { text-align: center; padding: 20px; background: var(--gray-100); border-radius: var(--radius); }
.value-icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.value-item h4 { color: var(--gray-900); font-size: 1rem; margin-bottom: 4px; }
.value-item p { color: var(--gray-500); font-size: 0.85rem; margin-bottom: 0; }
.about-stats-side { display: flex; flex-direction: column; gap: 16px; }
.about-stat-card {
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  color: var(--white); padding: 20px 28px; border-radius: var(--radius);
  text-align: center;
}
.about-stat-card:nth-child(2) { background: linear-gradient(135deg, #FF6B35, #FF9A5C); }
.about-stat-card:nth-child(3) { background: linear-gradient(135deg, #10B981, #34D399); }
.about-stat-card:nth-child(4) { background: linear-gradient(135deg, #2d1050, #6D28D9); }
.about-stat-number { font-size: 1.8rem; font-weight: 900; line-height: 1; }
.about-stat-text { font-size: 0.85rem; opacity: 0.8; margin-top: 4px; }
.about-parent {
  background: var(--white); border: 1px solid var(--gray-300);
  border-radius: var(--radius); padding: 20px; margin-top: 8px;
}
.parent-label { font-size: 0.75rem; color: var(--gray-500); text-transform: uppercase; letter-spacing: 1px; }
.parent-info { display: flex; align-items: center; gap: 12px; margin-top: 8px; }
.parent-logo { font-size: 2rem; }
.parent-info strong { color: var(--gray-900); font-size: 1.1rem; }
.parent-info p { font-size: 0.85rem; color: var(--gray-500); margin: 0; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #1e0a3c, #3b0764); padding: 80px 0;
  text-align: center;
}
.cta-content h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); color: var(--white); margin-bottom: 12px; font-weight: 700; }
.cta-content p { color: rgba(255,255,255,0.7); font-size: 1.1rem; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; }
.contact-form { background: var(--white); border-radius: var(--radius-lg); padding: 36px; border: 1px solid var(--gray-300); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.9rem; font-weight: 500;
  color: var(--gray-900); margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--gray-300);
  border-radius: 8px; font-size: 0.95rem; font-family: var(--font);
  transition: var(--transition); background: var(--white); color: var(--gray-900);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}
.form-group textarea { resize: vertical; }
.contact-info-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid var(--gray-300);
}
.contact-info-card h3 { font-size: 1.3rem; color: var(--gray-900); margin-bottom: 24px; }
.info-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--gray-100); }
.info-item:last-child { border-bottom: none; }
.info-icon { flex-shrink: 0; }
.info-icon svg { display: block; }
.info-item strong { display: block; color: var(--gray-900); font-size: 0.95rem; }
.info-item p { color: var(--gray-500); font-size: 0.9rem; margin: 0; }

/* ===== Footer ===== */
footer {
  background: #0d1117; color: rgba(255,255,255,0.6); padding: 64px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-logo { margin-bottom: 12px; }
.footer-logo-img { height: 38px; width: auto; }
.footer-brand p { font-size: 0.9rem; margin-bottom: 8px; }
.footer-company { color: rgba(255,255,255,0.4) !important; font-size: 0.85rem !important; }
.footer-links h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 16px; }
.footer-links a { display: block; padding: 6px 0; font-size: 0.9rem; color: rgba(255,255,255,0.5); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px;
  display: flex; justify-content: space-between; font-size: 0.85rem;
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; width: 48px; height: 48px;
  background: var(--primary); color: var(--white); border: none; border-radius: 50%;
  font-size: 1.2rem; cursor: pointer; opacity: 0; visibility: hidden;
  transition: var(--transition); box-shadow: var(--shadow); z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-4px); }

/* ===== Animations ===== */
[data-aos] {
  opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-aos].visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .partners-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .capabilities-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .products-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .solutions-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .nav-links { display: none; }
  .nav-actions .btn { display: none; }
  .hamburger { display: flex; }
  .hero-content h1 { font-size: 2rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-number { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 280px; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }
  .cases-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .about-values { grid-template-columns: 1fr; }
  .solution-features { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 280px; }
}