:root {
  --primary: #DC2626;
  --primary-dark: #B91C1C;
  --primary-light: #FEE2E2;
  --bg-white: #FFFFFF;
  --bg-gray: #F9FAFB;
  --bg-red-light: #FEF2F2;
  --text-dark: #111827;
  --text-medium: #4B5563;
  --text-light: #9CA3AF;
  --border: #E5E7EB;
  --gold: #D97706;
  --radius: 8px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s ease;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
ul {
  list-style: none;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: var(--transition);
}
.text-red {
  color: var(--primary);
}
.section {
  padding: 80px 0;
}
.section-gray {
  background: var(--bg-gray);
}
.section-red-light {
  background: var(--bg-red-light);
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.section-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-medium);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2);
}
.btn-white {
  background: white;
  color: var(--primary);
  border-color: white;
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.btn-outline-white {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-outline-white:hover {
  background: white;
  color: var(--primary);
  border-color: white;
  transform: translateY(-2px);
}
.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}
.btn-block {
  width: 100%;
}
.top-bar {
  background: var(--primary);
  color: white;
  font-size: 13px;
  padding: 8px 0;
}
.top-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.top-bar-text {
  font-weight: 500;
  opacity: 0.95;
}
.top-bar-text i {
  margin-right: 6px;
}
.top-bar-contacts {
  display: flex;
  align-items: center;
  gap: 12px;
}
.top-bar-contacts a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  opacity: 0.9;
}
.top-bar-contacts a:hover {
  opacity: 1;
}
.top-bar-contacts .sep {
  opacity: 0.4;
}
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-img {
  width: 40px;
  height: 40px;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-main {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
}
.logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-medium);
  border-radius: var(--radius);
}
.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-actions {
  flex-shrink: 0;
}
.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--primary);
  color: white;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
}
.nav-cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}
.mobile-nav-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: white;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}
.mobile-nav-overlay.active .mobile-nav-panel {
  transform: translateX(0);
}
.mobile-nav-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-medium);
  border-radius: var(--radius);
}
.mobile-nav-close:hover {
  background: var(--bg-gray);
  color: var(--text-dark);
}
.mobile-nav-links {
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav-link {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  border-radius: var(--radius);
}
.mobile-nav-link:hover {
  background: var(--bg-gray);
  color: var(--primary);
}
.mobile-nav-contacts {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mobile-contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--primary);
  color: white;
  font-weight: 600;
  border-radius: var(--radius);
}
.hero-section {
  padding: 80px 0;
  background: var(--bg-white);
}
.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: stretch;
  min-height: 480px;
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 0;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat {
  text-align: left;
}
.hero-stat-number {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
}
.hero-stat-label {
  font-size: 12px;
  color: var(--text-medium);
  font-weight: 500;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-gray);
  color: var(--text-medium);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.hero-badge i {
  color: var(--primary);
}
.hero-title {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-dark);
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 16px;
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.hero-cards .hero-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-card {
  position: relative;
  display: block;
  padding: 32px;
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.hero-card-red {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--bg-white) 0%, var(--primary-light) 100%);
}
.hero-card-icon {
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.hero-card:not(.hero-card-red) .hero-card-icon {
  background: var(--bg-gray);
  color: var(--primary);
}
.hero-card-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.hero-card-desc {
  font-size: 14px;
  color: var(--text-medium);
  margin-bottom: 16px;
  line-height: 1.6;
}
.hero-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.hero-card-tags span {
  padding: 4px 10px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-medium);
  border-radius: var(--radius);
}
.hero-card-arrow {
  position: absolute;
  top: 32px;
  right: 32px;
  width: 36px;
  height: 36px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}
.hero-card:hover .hero-card-arrow {
  background: var(--primary);
  color: white;
  transform: translateX(4px);
}
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.advantage-card {
  position: relative;
  padding: 0 28px 28px 28px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  overflow: hidden;
}
.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  opacity: 0;
  transition: var(--transition);
}
.advantage-card:hover::before {
  opacity: 1;
}
.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.advantage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-top: 28px;
}
.advantage-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
  transition: var(--transition);
}
.advantage-card:hover .advantage-num {
  color: var(--primary);
}
.advantage-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transition: var(--transition);
  flex-shrink: 0;
}
.advantage-card:hover .advantage-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}
.advantage-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.advantage-desc {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.7;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  padding: 36px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-card-left {
  border-top: 4px solid var(--primary);
}
.service-card-right {
  border-top: 4px solid var(--text-dark);
}
.service-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.service-card-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.service-card-right .service-card-icon {
  background: var(--bg-gray);
  color: var(--text-dark);
}
.service-card-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.service-card-subtitle {
  font-size: 14px;
  color: var(--text-medium);
}
.service-feature-list {
  margin-bottom: 28px;
}
.service-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-medium);
}
.service-feature-list i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 3px;
  flex-shrink: 0;
}
.service-card-brands {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-bottom: 28px;
  padding: 20px;
  background: var(--bg-gray);
  border-radius: var(--radius);
}
.brand-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 8px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.brand-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.brand-item img {
  max-height: 24px;
  max-width: 100%;
  object-fit: contain;
}
.ai-brands {
  grid-template-columns: repeat(5, 1fr);
}
.ai-brand-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 72px;
  padding: 8px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-medium);
  transition: var(--transition);
}
.ai-brand-item:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.ai-brand-item i {
  font-size: 20px;
}
.ai-brand-item span {
  font-size: 11px;
  font-weight: 500;
}
.xiumiyun-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.xiumiyun-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--primary);
  color: white;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  margin-bottom: 20px;
}
.xiumiyun-badge i {
  color: #FBBF24;
}
.xiumiyun-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.xiumiyun-desc {
  font-size: 16px;
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 24px;
}
.xiumiyun-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.xiumiyun-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
}
.xiumiyun-feature i {
  color: var(--primary);
  font-size: 18px;
}
.xiumiyun-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.xiumiyun-server {
  width: 100%;
  max-width: 360px;
}
.server-rack {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}
.server-unit {
  height: 40px;
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.server-unit::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary);
  animation: blink 2s ease-in-out infinite;
}
.server-unit::after {
  content: '';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 6px;
  background: #374151;
  border-radius: 3px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  padding: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.partner-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.partner-card img {
  max-height: 36px;
  max-width: 100%;
  object-fit: contain;
}
.partners-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.partner-stat {
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.partner-stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.partner-stat-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}
.partner-stat-label {
  font-size: 14px;
  color: var(--text-medium);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-step {
  position: relative;
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.step-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 40px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
}
.step-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 20px;
  transition: var(--transition);
}
.process-step:hover .step-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}
.step-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.step-desc {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.6;
}
.step-line {
  position: absolute;
  top: 64px;
  right: -12px;
  width: 24px;
  height: 2px;
  background: var(--border);
  z-index: 1;
}
.process-step:last-child .step-line {
  display: none;
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  position: relative;
  padding: 32px 28px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.testimonial-quote {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 36px;
  color: var(--primary-light);
}
.testimonial-content {
  font-size: 15px;
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 24px;
  padding-right: 20px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.author-avatar {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}
.author-info {
  flex: 1;
  min-width: 0;
}
.author-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 2px;
}
.author-role {
  font-size: 12px;
  color: var(--text-light);
}
.author-rating {
  color: #FBBF24;
  font-size: 12px;
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 64px 0;
  color: white;
}
.cta-content {
  text-align: center;
}
.cta-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-desc {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 32px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.footer {
  background: var(--text-dark);
  color: var(--text-light);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid #1F2937;
}
.footer-brand-col {
  max-width: 320px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer-logo-img {
  width: 40px;
  height: 40px;
}
.footer-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.footer-logo-main {
  font-size: 18px;
  font-weight: 700;
  color: white;
}
.footer-logo-sub {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
  color: #9CA3AF;
}
.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-contacts a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #1F2937;
  color: #D1D5DB;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  width: fit-content;
}
.footer-contacts a:hover {
  background: var(--primary);
  color: white;
}
.footer-contacts i {
  color: #0088cc;
  font-size: 16px;
}
.footer-contacts a:hover i {
  color: white;
}
.footer-links-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  color: #9CA3AF;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  flex-wrap: wrap;
}
.footer-copyright {
  font-size: 13px;
  color: #6B7280;
}
.footer-badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: #1F2937;
  font-size: 12px;
  color: #9CA3AF;
  border-radius: var(--radius);
}
.footer-badge i {
  color: var(--primary);
  font-size: 12px;
}
.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 999;
}
.float-btn {
  position: relative;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 22px;
  color: white;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}
.float-logo {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: contain;
}
.float-btn:hover {
  transform: translateY(-3px) scale(1.05);
  color: white;
}
.float-telegram {
  background: #0088cc;
  color: white;
}
.float-top {
  background: var(--primary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}
.float-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.float-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 14px;
  background: var(--text-dark);
  color: white;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  pointer-events: none;
}
.float-tooltip::after {
  content: '';
  position: absolute;
  right: -4px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: var(--text-dark);
}
.float-btn:hover .float-tooltip {
  opacity: 1;
  visibility: visible;
  right: calc(100% + 16px);
}
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .xiumiyun-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-line {
    display: none;
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .partners-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand-col {
    grid-column: 1 / -1;
    max-width: none;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 56px 0;
  }
  .top-bar {
    display: none;
  }
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .nav-cta-btn span {
    display: none;
  }
  .hero-title {
    font-size: 36px;
  }
  .section-title {
    font-size: 28px;
  }
  .section-subtitle {
    font-size: 15px;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .service-card-brands {
    grid-template-columns: repeat(3, 1fr);
  }
  .ai-brands {
    grid-template-columns: repeat(3, 1fr);
  }
  .partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .cta-title {
    font-size: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .nav-container {
    height: 64px;
  }
  .logo-main {
    font-size: 16px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-badges {
    gap: 8px;
  }
  .hero-badge {
    font-size: 12px;
    padding: 5px 10px;
  }
  .section-title {
    font-size: 24px;
  }
  .service-card {
    padding: 24px;
  }
  .service-card-brands {
    grid-template-columns: repeat(2, 1fr);
  }
  .ai-brands {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .partners-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .partner-stat-number {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-large {
    padding: 14px 24px;
    font-size: 15px;
  }
}