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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f17;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border-card: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --text-primary: #ffffff;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;
  --accent-orange: #FF6B35;
  --accent-orange-glow: rgba(255, 107, 53, 0.3);
  --accent-gold: #F5A623;
  --accent-gold-glow: rgba(245, 166, 35, 0.25);
  --accent-red: #8B0018;
  --gradient-brand: linear-gradient(135deg, #FF6B35 0%, #F5A623 50%, #FF6B35 100%);
  --gradient-hero: linear-gradient(180deg, rgba(255,107,53,0.15) 0%, rgba(245,166,35,0.08) 50%, transparent 100%);
  --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px var(--accent-orange-glow);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-sans: 'PingFang SC', 'SF Pro Display', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

::selection {
  background: var(--accent-orange);
  color: #fff;
}

#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(255,107,53,0.1) 0%, rgba(255,107,53,0.04) 35%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all var(--transition-smooth);
}

nav.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 0;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 20px;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-orange);
  border-radius: 1px;
  transition: width var(--transition-fast);
}

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

.nav-links a.active {
  color: var(--accent-orange);
}

.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  display: inline-block;
  text-decoration: none;
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 15px var(--accent-orange-glow);
  font-family: var(--font-sans);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 107, 53, 0.45);
}

.nav-ctas {
  display: flex;
  gap: 10px;
  align-items: center;
}

.nav-btn {
  padding: 8px 16px !important;
  font-size: 13px !important;
  height: auto !important;
  border-radius: 8px !important;
}

.nav-btn-outline {
  border: 1.5px solid rgba(59, 130, 246, 0.4) !important;
  color: #60a5fa !important;
  background: transparent !important;
  box-shadow: none !important;
}

.nav-btn-outline:hover {
  border-color: #3b82f6 !important;
  color: #93c5fd !important;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2) !important;
}

#hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,107,53,0.1) 0%, transparent 60%);
  pointer-events: none;
  animation: heroPulse 4s ease-in-out infinite;
}

@keyframes heroPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-block;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--accent-orange);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s var(--transition-bounce) both;
}

.hero-title {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 16px;
  animation: fadeInUp 0.8s 0.1s var(--transition-bounce) both;
  line-height: 1.1;
}

.gradient-text {
  background: linear-gradient(135deg, #FF6B35 0%, #F5A623 40%, #FF6B35 70%, #F5A623 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-subtitle {
  font-size: 22px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-weight: 500;
  letter-spacing: 2px;
  animation: fadeInUp 0.8s 0.2s var(--transition-bounce) both;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s 0.3s var(--transition-bounce) both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  animation: fadeInUp 0.8s 0.4s var(--transition-bounce) both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn-primary {
  display: inline-block;
  text-decoration: none;
  text-align: center;
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  padding: 14px 36px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px var(--accent-orange-glow);
  font-family: var(--font-sans);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  padding: 14px 36px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.btn-outline:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.15);
}

.btn-outline-blue {
  border-color: rgba(59, 130, 246, 0.35);
  color: #60a5fa;
}

.btn-outline-blue:hover {
  border-color: #3b82f6;
  color: #93c5fd;
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.25);
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 1px;
  animation: floatDown 2s ease-in-out infinite;
}

@keyframes floatDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
}

section {
  position: relative;
  z-index: 2;
  padding: 100px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  color: var(--accent-orange);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 100px;
  background: rgba(255, 107, 53, 0.05);
}

.section-title {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

.features-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition-smooth);
  cursor: default;
}

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

.feature-card.highlight {
  border-color: rgba(255, 107, 53, 0.25);
  background: linear-gradient(135deg, rgba(255,107,53,0.08), rgba(245,166,35,0.04));
}

.feature-card.highlight:hover {
  border-color: rgba(255, 107, 53, 0.4);
  box-shadow: 0 8px 40px rgba(255, 107, 53, 0.2);
}

.card-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--gradient-brand);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  box-shadow: 0 4px 15px var(--accent-orange-glow);
}

.card-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.icon-consumer {
  background: rgba(52, 211, 153, 0.1);
}

.icon-merchant {
  background: rgba(255, 107, 53, 0.1);
}

.icon-platform {
  background: rgba(245, 166, 35, 0.1);
}

.card-icon {
  font-size: 26px;
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

.card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-list li {
  font-size: 13px;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}

.card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent-orange);
  border-radius: 50%;
}

.core-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.core-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
}

.core-item:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(6px);
}

.core-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  color: var(--accent-orange);
}

.core-icon svg {
  width: 100%;
  height: 100%;
}

.core-info h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.core-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

#workflow {
  background: var(--bg-secondary);
}

.steps {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
}

.step.reverse {
  flex-direction: row-reverse;
}

.step-number {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient-brand);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  box-shadow: var(--shadow-glow);
  z-index: 2;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  flex: 1;
  transition: all var(--transition-smooth);
}

.step-card:hover {
  border-color: var(--border-hover);
  transform: scale(1.02);
}

.step-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.step-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.step-connector {
  display: none;
}

#stats {
  position: relative;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(255,107,53,0.05) 50%, var(--bg-primary) 100%);
}

.stats-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 56px;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-suffix {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-gold);
  margin-top: -4px;
}

.stat-label {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 12px;
  font-weight: 500;
}

#testimonials {
  background: var(--bg-secondary);
}

.testimonial-slider {
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: 24px;
  animation: slideTestimonials 30s linear infinite;
}

.testimonial-track:hover {
  animation-play-state: paused;
}

@keyframes slideTestimonials {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  min-width: 350px;
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-smooth);
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: 60px;
  color: var(--accent-orange);
  line-height: 1;
  font-family: Georgia, serif;
  margin-bottom: 8px;
  opacity: 0.5;
}

.testimonial-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.author-info strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
}

.author-info span {
  font-size: 13px;
  color: var(--text-muted);
}

.about-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content {
  padding-right: 20px;
}

.about-content .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.about-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.about-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
}

.about-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.contact-icon {
  width: 24px;
  text-align: center;
}

.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-orb {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%);
  animation: orbFloat 6s ease-in-out infinite;
}

.visual-orb.secondary {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(245,166,35,0.12) 0%, transparent 70%);
  animation: orbFloat 5s ease-in-out 1s infinite reverse;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -20px) scale(1.05); }
  66% { transform: translate(-10px, 10px) scale(0.95); }
}

.visual-card {
  position: relative;
  z-index: 2;
  background: rgba(15, 15, 23, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.visual-card-inner {
  display: flex;
  gap: 24px;
}

.mini-dashboard {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mini-stat {
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  min-width: 100px;
  text-align: center;
}

.mini-stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-orange);
}

.mini-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.mini-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 120px;
  flex: 1;
}

.chart-bar {
  flex: 1;
  background: var(--gradient-brand);
  border-radius: 4px 4px 0 0;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
  animation: barRise 1s var(--transition-bounce) both;
}

.chart-bar:nth-child(1) { animation-delay: 0.05s; }
.chart-bar:nth-child(2) { animation-delay: 0.1s; }
.chart-bar:nth-child(3) { animation-delay: 0.15s; }
.chart-bar:nth-child(4) { animation-delay: 0.2s; }
.chart-bar:nth-child(5) { animation-delay: 0.25s; }
.chart-bar:nth-child(6) { animation-delay: 0.3s; }
.chart-bar:nth-child(7) { animation-delay: 0.35s; }

.chart-bar:hover {
  opacity: 1;
}

@keyframes barRise {
  from { height: 0; }
}

#provider-intro {
  background: var(--bg-secondary);
}

#why-us {
  background: var(--bg-primary);
}

#flow {
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(255,107,53,0.03) 50%, var(--bg-primary) 100%);
}

/* 卡片（for 测算器） */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}

/* 收益测算行 */
.earn-row { display: flex; align-items: center; gap: 14px; padding: 10px 0; }
.earn-mult { display: flex; flex-direction: column; align-items: center; color: var(--text-secondary); font-size: 12px; gap: 4px; }
.earn-mult span { font-size: 22px; font-weight: 700; }
.earn-box { flex: 1; background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-md); padding: 16px; text-align: center; min-width: 0; }
.earn-box h4 { font-size: 26px; font-weight: 800; margin-bottom: 4px; }
.earn-box p { font-size: 11px; color: var(--text-muted); }
.earn-box.orange h4 { color: var(--accent-orange); }
.earn-box.blue h4 { color: #60a5fa; }
.earn-box.green h4 { color: #34d399; }
.monthly-tag { text-align: center; margin-top: 14px; color: var(--text-muted); font-size: 13px; }
.monthly-tag b { color: #34d399; font-weight: 700; }

/* 适合人群 */
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; max-width: 1000px; margin: 24px auto 0; }
.audience-card { background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-lg); padding: 24px 20px; text-align: center; transition: all var(--transition-smooth); }
.audience-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.audience-card .audience-icon { font-size: 36px; margin-bottom: 10px; }
.audience-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.audience-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* 为什么选择我们 */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 900px; margin: 0 auto; }
.why-item { display: flex; gap: 14px; padding: 18px; background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius-md); }
.why-item .why-num { flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700; }
.why-item .why-num.orange { background: rgba(255,107,53,.15); color: var(--accent-orange); }
.why-item .why-num.blue { background: rgba(59,130,246,.15); color: #60a5fa; }
.why-info h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.why-info p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* 对比表格 */
.comparison-table { max-width: 800px; margin: 0 auto; overflow-x: auto; }
.comparison-table table { width: 100%; border-collapse: collapse; font-size: 13px; }
.comparison-table th { background: rgba(255,107,53,.08); color: var(--accent-orange); padding: 14px 16px; text-align: left; font-weight: 600; font-size: 13px; border-bottom: 1px solid var(--border-card); }
.comparison-table th:last-child { background: rgba(59,130,246,.08); color: #60a5fa; }
.comparison-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-card); color: var(--text-secondary); }
.comparison-table tr:hover td { background: rgba(255,255,255,.03); }
.highlight-cell { color: #34d399; font-weight: 600; }

footer {
  position: relative;
  z-index: 2;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-card);
  padding: 60px 24px 30px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.footer-col a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-card);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-domain {
  color: var(--accent-orange);
  font-weight: 600;
}

.faq-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  transition: all var(--transition-smooth);
}

.faq-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.faq-q {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 900px) {
  .hero-title {
    font-size: 44px;
  }

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

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

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

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

  .about-content {
    padding-right: 0;
  }

  .footer-inner {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 30px;
  }

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

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

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

  .nav-links {
    display: none;
  }

  .section-title {
    font-size: 32px;
  }

  .step {
    flex-direction: column !important;
    text-align: center;
    gap: 16px;
  }

  .testimonial-card {
    min-width: 280px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 34px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

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

  .footer-links {
    flex-direction: column;
    gap: 20px;
  }
}