:root {
  --primary: #DC2626;
  --primary-dark: #B91C1C;
  --primary-light: #FEE2E2;
  --primary-bg: #FEF2F2;
  --bg-white: #FFFFFF;
  --bg-gray: #F9FAFB;
  --text-dark: #111827;
  --text-medium: #4B5563;
  --text-light: #9CA3AF;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --radius: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-medium);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.bg-gray {
  background: var(--bg-gray);
}

.text-red {
  color: var(--primary);
}

.section {
  padding: 80px 0;
}

.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: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-light);
  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;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

.btn-block {
  width: 100%;
}

.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(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-medium);
  border-color: var(--border);
}

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

.btn-ghost {
  background: var(--bg-gray);
  color: var(--text-dark);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--border-light);
  border-color: var(--text-light);
}

.top-bar {
  background: var(--primary);
  color: white;
  font-size: 13px;
  padding: 8px 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.top-bar-right a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.top-bar-right a:hover {
  opacity: 0.9;
}

.top-bar-right .divider {
  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);
}

.navbar-inner {
  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 16px;
  font-size: 14px;
  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 {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-nav {
  display: none;
}

.cdn-hero {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, var(--primary-bg) 0%, var(--bg-white) 100%);
}

.cdn-hero-content {
  text-align: center;
  margin-bottom: 48px;
}

.cdn-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: white;
  border: 1px solid var(--primary-light);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.cdn-hero-eyebrow i {
  color: var(--primary);
}

.cdn-hero-title {
  font-size: 48px;
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 20px;
}

.cdn-hero-subtitle {
  font-size: 17px;
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 32px;
}

.cdn-hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.cdn-hero-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
}

.cdn-hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.cdn-hero-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.cdn-hero-card-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
}

.cdn-hero-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
}

.cdn-hero-card-icon.speed {
  background: linear-gradient(135deg, #F59E0B, #D97706);
}

.cdn-hero-card-icon.shield {
  background: linear-gradient(135deg, #10B981, #059669);
}

.cdn-hero-card-icon.anonymous {
  background: linear-gradient(135deg, #6366F1, #4F46E5);
}

.cdn-hero-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.cdn-hero-card p {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 20px;
}

.cdn-hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cdn-hero-card-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-medium);
}

.cdn-hero-card-list i {
  color: var(--primary);
  font-size: 12px;
}

.cdn-stats-section {
  padding: 48px 0;
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-light);
}

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

.cdn-stat-item {
  text-align: center;
  padding: 24px;
}

.cdn-stat-number {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.cdn-stat-label {
  font-size: 14px;
  color: var(--text-medium);
  font-weight: 500;
}

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

.cdn-feature-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
}

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

.cdn-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: var(--transition);
}

.cdn-feature-card:hover::before {
  opacity: 1;
}

.cdn-feature-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.cdn-feature-num {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
  transition: var(--transition);
}

.cdn-feature-card:hover .cdn-feature-num {
  color: var(--primary);
}

.cdn-feature-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;
}

.cdn-feature-card:hover .cdn-feature-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.cdn-feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.cdn-feature-card p {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 16px;
}

.cdn-feature-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cdn-feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-medium);
}

.cdn-feature-list i {
  color: var(--primary);
  font-size: 12px;
}

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

.cdn-partner-card {
  position: relative;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.cdn-partner-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.cdn-partner-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.cdn-partner-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--primary);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
}

.cdn-partner-icon {
  width: 72px;
  height: 72px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.cdn-partner-card:hover .cdn-partner-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.cdn-partner-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.cdn-partner-card p {
  font-size: 14px;
  color: var(--text-medium);
  margin-bottom: 20px;
}

.cdn-partner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.cdn-partner-tags span {
  padding: 4px 12px;
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
  color: var(--text-medium);
}

.cdn-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.cdn-pricing-card {
  position: relative;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.cdn-pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.cdn-pricing-card.popular {
  border-color: var(--primary);
  border-width: 2px;
}

.cdn-pricing-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: var(--primary);
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
}

.cdn-pricing-header {
  margin-bottom: 24px;
}

.cdn-pricing-header h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.cdn-pricing-header p {
  font-size: 14px;
  color: var(--text-medium);
}

.cdn-pricing-price {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-light);
}

.cdn-pricing-price .price-currency {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  vertical-align: top;
}

.cdn-pricing-price .price-amount {
  font-size: 48px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin: 0 4px;
}

.cdn-pricing-price .price-period {
  font-size: 14px;
  color: var(--text-light);
}

.cdn-pricing-price .price-text {
  font-size: 36px;
  font-weight: 900;
  color: var(--text-dark);
  margin-right: 8px;
}

.cdn-pricing-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.cdn-pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.6;
}

.cdn-pricing-features i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 3px;
  flex-shrink: 0;
}

.cdn-pricing-note {
  text-align: center;
  font-size: 14px;
  color: var(--text-light);
  margin-top: 32px;
}

.cdn-pricing-note i {
  color: var(--primary);
  margin-right: 6px;
}

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

.cdn-scenario-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.cdn-scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.cdn-scenario-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-light), white);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.cdn-scenario-card:hover .cdn-scenario-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}

.cdn-scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.cdn-scenario-card p {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.7;
}

.cdn-xiumiyun-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: white;
}

.cdn-xiumiyun-content {
  color: white;
}

.cdn-xiumiyun-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.cdn-xiumiyun-badge i {
  color: #FBBF24;
}

.cdn-xiumiyun-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cdn-xiumiyun-desc {
  font-size: 16px;
  opacity: 0.9;
  line-height: 1.8;
  margin-bottom: 24px;
}

.cdn-xiumiyun-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.cdn-xiumiyun-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
}

.cdn-xiumiyun-feature i {
  color: #FBBF24;
  font-size: 18px;
}

.cdn-xiumiyun-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.cdn-xiumiyun-visual-icon {
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  color: white;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 20px rgba(255, 255, 255, 0);
  }
}

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

.cdn-process-step {
  position: relative;
  text-align: center;
  padding: 32px 24px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.cdn-process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.cdn-step-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 40px;
  font-weight: 900;
  color: var(--primary-light);
  line-height: 1;
}

.cdn-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);
}

.cdn-process-step:hover .cdn-step-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}

.cdn-process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.cdn-process-step p {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.6;
}

.cdn-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.cdn-faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.cdn-faq-item:hover {
  border-color: var(--primary-light);
}

.cdn-faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  transition: var(--transition);
}

.cdn-faq-question:hover {
  color: var(--primary);
  background: var(--bg-gray);
}

.cdn-faq-question i {
  color: var(--text-light);
  font-size: 12px;
  transition: var(--transition);
  flex-shrink: 0;
}

.cdn-faq-item.active .cdn-faq-question i {
  transform: rotate(180deg);
  color: var(--primary);
}

.cdn-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.cdn-faq-item.active .cdn-faq-answer {
  max-height: 500px;
}

.cdn-faq-answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.8;
}

.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 64px 0;
  color: white;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-content {
  flex: 1;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-content p {
  font-size: 16px;
  opacity: 0.9;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

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

.btn-white:hover {
  transform: translateY(-1px);
  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: rgba(255, 255, 255, 0.1);
  border-color: white;
}

.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-btn:hover {
  transform: translateY(-3px) scale(1.05);
  color: white;
}

.float-telegram {
  background: #0088cc;
}

.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) {
  .cdn-hero-cards {
    grid-template-columns: 1fr;
  }

  .cdn-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cdn-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cdn-partners-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cdn-pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .cdn-scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cdn-xiumiyun-banner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .cdn-xiumiyun-features {
    justify-content: center;
  }

  .cdn-process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
    max-width: none;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .cdn-hero-title {
    font-size: 36px;
  }

  .section-title {
    font-size: 28px;
  }

  .cdn-hero-cards {
    grid-template-columns: 1fr;
  }

  .cdn-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .cdn-stat-number {
    font-size: 32px;
  }

  .cdn-features-grid {
    grid-template-columns: 1fr;
  }

  .cdn-partners-grid {
    grid-template-columns: 1fr;
  }

  .cdn-scenarios-grid {
    grid-template-columns: 1fr;
  }

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

  .cdn-xiumiyun-banner {
    padding: 32px;
  }

  .cdn-xiumiyun-title {
    font-size: 24px;
  }

  .cdn-xiumiyun-features {
    grid-template-columns: 1fr;
  }

  .cdn-xiumiyun-visual-icon {
    width: 140px;
    height: 140px;
    font-size: 60px;
  }

  .top-bar {
    display: none;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .nav-actions .btn span {
    display: none;
  }
}

@media (max-width: 480px) {
  .navbar-inner {
    height: 64px;
  }

  .logo-main {
    font-size: 16px;
  }

  .cdn-hero-title {
    font-size: 30px;
  }

  .section-title {
    font-size: 24px;
  }

  .cdn-hero-card {
    padding: 24px;
  }

  .cdn-feature-card {
    padding: 24px;
  }

  .cdn-pricing-card {
    padding: 32px 24px;
  }

  .cdn-pricing-price .price-amount {
    font-size: 40px;
  }

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }
}