/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1a1a2e;
  background: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: default;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Progress Bar ===== */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px;
  background: linear-gradient(90deg, #6c5ce7, #a29bfe, #fd79a8);
  z-index: 10000; width: 0%;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ===== Particle Canvas ===== */
.particle-canvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
  opacity: 0.4;
}

/* ===== Custom Cursor ===== */
.cursor {
  width: 8px; height: 8px; border-radius: 50%;
  background: #a29bfe; position: fixed; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%); mix-blend-mode: difference;
  transition: width 0.2s, height 0.2s, background 0.2s;
}
.cursor-follower {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1.5px solid rgba(162,155,254,0.4);
  position: fixed; pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, border-color 0.3s, transform 0.08s ease-out;
}
.cursor.hover { width: 16px; height: 16px; background: #a29bfe; }
.cursor-follower.hover {
  width: 48px; height: 48px; border-color: rgba(162,155,254,0.7);
  background: rgba(162,155,254,0.05);
}
@media (max-width: 768px) {
  .cursor, .cursor-follower { display: none; }
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left {
  opacity: 0; transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0; transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ===== Navigation ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,26,0.85); backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(108,92,231,0.1);
  transition: box-shadow 0.4s, background 0.4s;
}
.nav-cta { margin-left: 4px; }
.nav-hotline {
  display: flex; align-items: center; gap: 8px;
  color: rgba(220,215,235,0.85);
}
.nav-hotline svg { color: #a29bfe; flex-shrink: 0; }
.nav-hotline-text { display: flex; align-items: center; gap: 6px; line-height: 1; }
.nav-hotline-label { font-size: 13px; color: rgba(220,215,235,0.8); letter-spacing: 0.3px; }
.nav-hotline-number {
  font-size: 15px; font-weight: 700; color: #fff;
  text-decoration: none; letter-spacing: 0.3px;
  transition: color 0.2s;
}
.nav-hotline-number:hover { color: #a29bfe; }
.nav-hotline-note { font-size: 12px; color: rgba(200,195,220,0.7); }
.nav.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  background: rgba(10,10,26,0.95);
}
.nav .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; color: #e8e6f0;
}
.nav-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; font-weight: 800;
  animation: logo-shine 3s ease-in-out infinite;
}
@keyframes logo-shine {
  0%, 100% { box-shadow: 0 0 0 0 rgba(108,92,231,0.3); }
  50% { box-shadow: 0 0 0 8px rgba(108,92,231,0); }
}
.nav-links { display: flex; gap: 36px; font-size: 14px; font-weight: 500; color: rgba(220,215,235,0.8); }
.nav-links a { transition: color 0.2s; position: relative; }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: #6c5ce7; border-radius: 1px; transition: width 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: #a29bfe; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; padding: 10px 24px; border-radius: 24px;
  font-size: 14px; font-weight: 600;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}
.nav-cta::before {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}
.nav-cta:hover { transform: translateY(-2px) translateZ(0); box-shadow: 0 6px 24px rgba(108,92,231,0.5); }
.nav-cta:hover::before { left: 100%; }

/* ===== Hero ===== */
.hero {
  padding: 120px 0 100px; position: relative; overflow: hidden;
  background: #f5f3ff; min-height: 100vh; display: flex; align-items: center;
}
/* Neural Network Canvas */
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
/* Grid Overlay */
.hero-grid {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background-image:
    linear-gradient(rgba(108,92,231,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,92,231,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 20%, transparent 70%);
}
/* Scan Lines */
.hero-scanlines { display: none; }
/* Floating Keywords */
.hero-keywords { position: absolute; inset: 0; z-index: 2; pointer-events: none; }
.kw {
  position: absolute; font-size: 13px; font-weight: 600; opacity: 0.06;
  color: #6c5ce7; white-space: nowrap; animation: kw-float 12s ease-in-out infinite;
}
.kw-1 { top: 15%; left: 8%; animation-delay: 0s; }
.kw-2 { top: 25%; right: 10%; animation-delay: -2s; }
.kw-3 { top: 60%; left: 5%; animation-delay: -4s; }
.kw-4 { top: 70%; right: 8%; animation-delay: -6s; }
.kw-5 { top: 40%; left: 12%; animation-delay: -1s; font-size: 11px; }
.kw-6 { top: 50%; right: 15%; animation-delay: -3s; font-size: 11px; }
.kw-7 { top: 80%; left: 45%; animation-delay: -5s; }
.kw-8 { top: 10%; right: 30%; animation-delay: -7s; }
@keyframes kw-float {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.04; }
  25% { transform: translateY(-20px) translateX(10px); opacity: 0.08; }
  50% { transform: translateY(-10px) translateX(-5px); opacity: 0.06; }
  75% { transform: translateY(15px) translateX(-10px); opacity: 0.07; }
}

.hero .container {
  display: flex; align-items: center; gap: 60px; position: relative; z-index: 4;
}
.hero-text { flex: 1; animation: heroTextIn 1s cubic-bezier(0.22, 1, 0.36, 1) both; }
@keyframes heroTextIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(108,92,231,0.08); color: #6c5ce7;
  padding: 8px 18px; border-radius: 20px;
  font-size: 13px; font-weight: 600; margin-bottom: 28px;
  border: 1px solid rgba(108,92,231,0.15);
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #6c5ce7; animation: pulse-dot 1.5s infinite;
  box-shadow: 0 0 8px rgba(108,92,231,0.8);
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.8); }
}
.typing-cursor {
  color: #a29bfe; font-weight: 400; animation: blink 0.8s infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.hero h1 {
  font-size: 58px; font-weight: 800; line-height: 1.15; margin-bottom: 24px;
}
.hero-line { display: block; color: #1a1a2e; }
.hero-line.line-1 {
  animation: heroLine1 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}
.hero-line.line-2 {
  animation: heroLine2 1s cubic-bezier(0.22, 1, 0.36, 1) 0.5s both;
}
@keyframes heroLine1 {
  from { opacity: 0; transform: translateX(-40px); filter: blur(10px); }
  to { opacity: 1; transform: translateX(0); filter: blur(0); }
}
@keyframes heroLine2 {
  from { opacity: 0; transform: translateY(20px); filter: blur(8px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.gradient-text {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe, #fd79a8, #6c5ce7);
  background-size: 300% 300%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 5s ease infinite;
  text-shadow: none;
}
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.hero-desc {
  font-size: 17px; color: #666; line-height: 1.7;
  margin-bottom: 36px; max-width: 500px;
  animation: heroTextIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.6s both;
}
.hero-btns { display: flex; gap: 16px; animation: heroTextIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.8s both; }
.hero-btn-glow, .cta-btn {
  background: linear-gradient(135deg, #7c6ff7, #b8a9ff); color: #fff;
  box-shadow: 0 0 40px rgba(124,111,247,0.6), 0 0 80px rgba(124,111,247,0.3), 0 0 120px rgba(162,155,254,0.15);
  padding: 16px 36px;
}
.hero-btn-glow:hover, .cta-btn:hover {
  background: linear-gradient(135deg, #8f7fff, #c8bbff);
  box-shadow: 0 0 60px rgba(124,111,247,0.8), 0 0 100px rgba(124,111,247,0.4), 0 0 160px rgba(162,155,254,0.25);
  transform: translateY(-3px);
}
.hero-btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 16px 36px; border-radius: 12px; font-size: 16px; font-weight: 600;
  border: 1.5px solid rgba(108,92,231,0.35); color: #6c5ce7;
  background: transparent; transition: all 0.3s ease;
}
.hero-btn-outline:hover { border-color: #6c5ce7; background: rgba(108,92,231,0.06); }

/* Hero Stats */
.hero-stats {
  display: flex; gap: 40px; margin-top: 40px;
  padding-top: 32px; border-top: 1px solid rgba(108,92,231,0.12);
  animation: heroTextIn 1s cubic-bezier(0.22, 1, 0.36, 1) 1s both;
}
.hero-stat .hs-num {
  font-size: 28px; font-weight: 800; display: block;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .hs-label { font-size: 12px; color: #888; }

/* Hero Visual */
.hero-visual { flex: 1; position: relative; display: flex; align-items: center; justify-content: center; min-height: 420px; }
.hero-visual { animation: heroVisualIn 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both; }
@keyframes heroVisualIn {
  from { opacity: 0; transform: scale(0.9) translateX(40px); }
  to { opacity: 1; transform: scale(1) translateX(0); }
}

/* Central Neural Orb */
.hero-orb {
  position: absolute; width: 240px; height: 240px; z-index: 2;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.hero-orb-core { position: relative; width: 100%; height: 100%; }
.hero-orb-core svg { width: 100%; height: 100%; animation: orb-spin 20s linear infinite; }
@keyframes orb-spin { to { transform: rotate(360deg); } }
.hero-orb-pulse {
  position: absolute; inset: 20%; border-radius: 50%;
  background: radial-gradient(circle, rgba(108,92,231,0.15), transparent 70%);
  animation: orb-pulse 3s ease-in-out infinite;
}
@keyframes orb-pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.3); opacity: 0.2; }
}
.hero-orb-ring {
  position: absolute; border-radius: 50%; border: 1px solid rgba(108,92,231,0.2);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  animation: ring-expand 4s ease-out infinite;
}
.ring-1 { width: 120px; height: 120px; animation-delay: 0s; }
.ring-2 { width: 120px; height: 120px; animation-delay: 1.5s; }
.ring-3 { width: 120px; height: 120px; animation-delay: 3s; }
@keyframes ring-expand {
  0% { width: 80px; height: 80px; opacity: 0.6; }
  100% { width: 280px; height: 280px; opacity: 0; }
}

/* Doubao-style AI Card */
.hero-card {
  position: relative; z-index: 3;
  background: #fff; border-radius: 16px; padding: 20px;
  border: 1px solid #e8ecf1;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
  width: 100%; max-width: 420px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.hero-card-border {
  position: absolute; inset: 0; border-radius: 16px; padding: 1px;
  background: linear-gradient(135deg, rgba(79,110,247,0.15), rgba(123,92,247,0.08), rgba(79,110,247,0.05));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
/* Doubao Header */
.doubao-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
  padding-bottom: 12px; border-bottom: 1px solid #f0f2f5;
}
.doubao-avatar { flex-shrink: 0; }
.doubao-meta { display: flex; flex-direction: column; flex: 1; }
.doubao-name { font-size: 15px; font-weight: 700; color: #1a1a2e; }
.doubao-tag { font-size: 11px; color: #999; margin-top: 1px; }
.doubao-header-actions { flex-shrink: 0; cursor: pointer; opacity: 0.5; }
/* Doubao Body - Chat */
.doubao-body {
  display: flex; flex-direction: column; gap: 12px;
  max-height: 320px; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: #e0e0e0 transparent;
}
.doubao-body::-webkit-scrollbar { width: 4px; }
.doubao-body::-webkit-scrollbar-thumb { background: #e0e0e0; border-radius: 2px; }

/* Chat Row */
.db-chat-row { display: flex; gap: 8px; }
.db-chat-user { justify-content: flex-end; }
.db-chat-ai { justify-content: flex-start; }
.db-chat-avatar { flex-shrink: 0; align-self: flex-start; margin-top: 4px; }

/* Chat Bubble */
.db-chat-bubble {
  max-width: 88%; padding: 10px 14px; border-radius: 14px;
  font-size: 13px; line-height: 1.5; position: relative;
}
.user-bubble {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; border-bottom-right-radius: 4px;
  display: flex; flex-direction: column; gap: 2px;
}
.user-bubble .bubble-label { font-size: 10px; opacity: 0.7; font-weight: 500; }
.user-bubble .bubble-text { font-size: 13px; font-weight: 500; }

.ai-bubble {
  background: #f5f7fb; color: #333;
  border-bottom-left-radius: 4px;
  border: 1px solid #eef0f5;
}
.ai-bubble-title { font-size: 13px; font-weight: 600; color: #1a1a2e; margin-bottom: 8px; }
.ai-bubble-item {
  display: flex; gap: 8px; align-items: flex-start; padding: 6px 0;
  border-bottom: 1px solid #f0f0f4;
}
.ai-bubble-item:last-of-type { border-bottom: none; }
.ai-item-rank {
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; font-size: 11px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 1px;
}
.ai-item-info { flex: 1; min-width: 0; }
.ai-item-name { font-size: 13px; font-weight: 600; color: #1a1a2e; }
.ai-item-desc { font-size: 11px; color: #888; margin-top: 1px; }
.ai-bubble-ref {
  display: flex; align-items: center; gap: 4px;
  margin-top: 6px; padding-top: 6px; border-top: 1px solid #eef0f5;
  font-size: 11px; color: #4F6EF7; opacity: 0.7;
}

/* Chat Input Area */
.doubao-input-area {
  margin-top: 12px; padding-top: 12px; border-top: 1px solid #f0f2f5;
}
.doubao-input-wrapper {
  display: flex; align-items: center; gap: 8px;
  background: #f5f7fb; border-radius: 24px; padding: 8px 8px 8px 16px;
  border: 1px solid #eef0f5; transition: border-color 0.2s, box-shadow 0.2s;
}
.doubao-input-wrapper:hover { border-color: #c8c8e0; }
.doubao-input-text {
  flex: 1; font-size: 13px; color: #666; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.doubao-input-btn {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
}
.doubao-input-btn:hover { transform: scale(1.08); box-shadow: 0 4px 12px rgba(108,92,231,0.3); }

/* Demo Note */
.hero-demo-note {
  text-align: center; font-size: 12px; color: #e67e22; margin-top: 8px;
  font-weight: 500;
}

/* Hero Text Disclaimer */
.hero-text-disclaimer {
  display: flex; align-items: center; gap: 6px;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid rgba(230,126,34,0.2);
  font-size: 14px; color: #e67e22; line-height: 1.4;
}
.hero-text-disclaimer svg { flex-shrink: 0; color: #e67e22; }

/* Hero Float Badge */
.hero-float {
  position: absolute; bottom: 10px; right: -10px; z-index: 4;
  background: rgba(15,12,30,0.9); border-radius: 14px; padding: 14px 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  display: flex; align-items: center; gap: 12px;
  backdrop-filter: blur(8px); border: 1px solid rgba(108,92,231,0.2);
  animation: float-bounce 4s ease-in-out infinite;
}
@keyframes float-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-float .trend-up {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, #00b894, #55efc4);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.hero-float .trend-text .big { font-size: 20px; font-weight: 700; color: #e8e6f0; }
.hero-float .trend-text .small { font-size: 11px; color: rgba(200,195,220,0.7); }

/* ===== Stats Bar ===== */
.stats-bar {
  padding: 48px 0; position: relative; z-index: 1;
  background: #fff; border-top: 1px solid #f0edfa; border-bottom: 1px solid #f0edfa;
}
.stats-bar .container { display: flex; justify-content: space-around; gap: 40px; }
.stat-item { text-align: center; }
.stat-item .stat-num {
  font-size: 42px; font-weight: 800;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 4px;
}
.stat-item .stat-label { font-size: 14px; color: #888; font-weight: 500; }

/* ===== Section Common ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .tag {
  display: inline-block; background: rgba(108,92,231,0.08);
  color: #6c5ce7; padding: 6px 18px; border-radius: 20px;
  font-size: 13px; font-weight: 600; margin-bottom: 16px;
  border: 1px solid rgba(108,92,231,0.1);
}
.section-header h2 {
  font-size: 36px; font-weight: 800; color: #1a1a2e; margin-bottom: 12px;
}
.section-header p { font-size: 16px; color: #888; max-width: 560px; margin: 0 auto; }

/* ===== GEO Flow ===== */
.geo-flow { background: #faf9ff; }
.flow-steps { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.flow-step {
  background: #fff; border-radius: 20px; padding: 36px 28px;
  flex: 1; min-width: 200px; max-width: 260px;
  text-align: center; position: relative;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s;
  border: 1px solid #f0edfa;
}
.flow-step:hover { transform: translateY(-8px) translateZ(0); box-shadow: 0 16px 40px rgba(108,92,231,0.15); }
.flow-step .step-num {
  width: 48px; height: 48px; border-radius: 14px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; transition: transform 0.3s;
}
.flow-step:hover .step-num { transform: scale(1.1) rotate(-5deg) translateZ(0); }
.flow-step .step-arrow {
  position: absolute; right: -30px; top: 50%;
  color: #c4b5fd; font-size: 24px;
}
.flow-step:last-child .step-arrow { display: none; }
.flow-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: #1a1a2e; }
.flow-step p { font-size: 14px; color: #888; line-height: 1.6; }
.flow-step .step-features { margin-top: 16px; text-align: left; }
.flow-step .step-features li {
  font-size: 13px; color: #666; padding: 4px 0;
  display: flex; align-items: center; gap: 6px;
}
.flow-step .step-features li::before {
  content: '✓'; color: #6c5ce7; font-weight: 700;
}

/* ===== AI Platform Cards ===== */
.platforms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.platform-card {
  background: #fff; border-radius: 16px; padding: 28px 24px;
  border: 1px solid #f0edfa;
  text-align: center; transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s;
}
.platform-card:hover { transform: translateY(-6px) translateZ(0); box-shadow: 0 12px 32px rgba(108,92,231,0.12); }
.platform-card .p-icon {
  width: 56px; height: 56px; border-radius: 16px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  background: #f8f9fc; transition: transform 0.3s;
}
.platform-card .p-icon img {
  width: 36px; height: 36px; object-fit: contain;
}
.platform-card:hover .p-icon { transform: scale(1.1) translateZ(0); }
.platform-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.platform-card p { font-size: 13px; color: #888; line-height: 1.5; }

/* ===== Features ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: #fff; border-radius: 16px; padding: 32px;
  border: 1px solid #f0edfa; transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s;
  position: relative; overflow: hidden;
}
.feature-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, #6c5ce7, #a29bfe, #fd79a8);
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s;
}
.feature-card:hover { transform: translateY(-6px) translateZ(0); box-shadow: 0 12px 36px rgba(0,0,0,0.08); }
.feature-card:hover::after { transform: scaleX(1); }
.feature-card .f-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 18px; transition: transform 0.3s;
}
.feature-card:hover .f-icon { transform: scale(1.1) rotate(-3deg) translateZ(0); }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #1a1a2e; }
.feature-card p { font-size: 14px; color: #888; line-height: 1.6; }

/* ===== Case Studies ===== */
.cases { background: #faf9ff; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.case-card {
  background: #fff; border-radius: 20px; overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
  border: 1px solid #f0edfa;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s;
  display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-6px) translateZ(0); box-shadow: 0 16px 40px rgba(108,92,231,0.12); }
.case-card .case-header-img {
  height: 160px; position: relative; overflow: hidden;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 16px;
  background-color: #e8e6f0;
}
.case-card .case-header-img::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.45) 100%);
  z-index: 0;
}
.case-card .case-header-img > * { position: relative; z-index: 1; }
.case-card .case-category {
  display: inline-block; align-self: flex-start;
  background: rgba(255,255,255,0.9); color: #1a1a2e;
  font-size: 13px; font-weight: 700; padding: 5px 14px;
  border-radius: 20px; backdrop-filter: blur(4px);
}
.case-card .case-keywords {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.case-card .case-keywords span {
  background: rgba(255,255,255,0.85); color: #333;
  font-size: 11px; font-weight: 600; padding: 3px 10px;
  border-radius: 12px; backdrop-filter: blur(4px);
}
.case-card .case-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.case-card .case-body h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #1a1a2e; }
.case-card .case-body p { font-size: 13px; color: #666; line-height: 1.7; margin-bottom: 18px; flex: 1; }
.case-card .case-metrics { display: flex; gap: 16px; margin-bottom: 16px; }
.case-card .case-metrics .metric { flex: 1; text-align: center; }
.case-card .case-metrics .metric .m-val {
  font-size: 20px; font-weight: 800; color: #6c5ce7;
}
.case-card .case-metrics .metric .m-label { font-size: 12px; color: #999; }
.case-card .case-platforms-label { font-size: 12px; font-weight: 600; color: #6c5ce7; margin-bottom: 8px; }
.case-card .case-platforms { display: flex; flex-wrap: wrap; gap: 8px; }
.cp-tag { font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 14px; color: #fff; }
.cp-blue { background: #4F6EF7; }
.cp-orange { background: #f39c12; }
.cp-purple { background: #6c5ce7; }
.cp-red { background: #e74c3c; }

/* ===== Comparison ===== */
.compare-wrapper { overflow: hidden; border-radius: 16px; }
.compare-table {
  width: 100%; border-collapse: collapse; border-radius: 16px;
  overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.compare-table th {
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; padding: 16px 24px; font-size: 14px; font-weight: 600;
  text-align: left;
}
.geo-highlight {
  background: linear-gradient(135deg, #f6c445, #f9a825);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; font-weight: 700;
}
.compare-table td {
  padding: 16px 24px; font-size: 14px; border-bottom: 1px solid #f0edfa;
  background: #fff; transition: background 0.3s;
}
.compare-table tbody tr:hover td { background: #faf8ff; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .check { color: #00b894; font-weight: 700; }

/* ===== CTA ===== */
.cta {
  background: linear-gradient(135deg, #f5f3ff 0%, #ede8ff 50%, #f0edfa 100%);
  color: #1a1a2e; text-align: center; position: relative; overflow: hidden;
}
.cta-bg-particles { position: absolute; inset: 0; overflow: hidden; }
.cta-bg-particles .cta-dot {
  position: absolute; width: 4px; height: 4px; background: rgba(108,92,231,0.15);
  border-radius: 50%; animation: cta-float-up linear infinite;
}
@keyframes cta-float-up {
  0% { transform: translateY(100%) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100%) scale(1); opacity: 0; }
}
.cta .container { position: relative; z-index: 1; }
.cta h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.cta p { font-size: 16px; color: #666; margin-bottom: 36px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta .btn-primary { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }
.cta .cta-sub { margin-top: 20px; font-size: 13px; color: #999; }

/* ===== Footer ===== */
.footer {
  background: #f5f3ff; color: #888;
  padding: 40px 0; border-top: 1px solid #e8e4f0;
}
.footer .container {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 20px;
}
.footer .footer-brand {
  font-weight: 700; font-size: 18px; color: #1a1a2e;
  display: flex; align-items: center; gap: 8px;
}
.footer .footer-brand .logo-icon {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px; font-weight: 800;
}
.footer .footer-links { display: flex; gap: 28px; font-size: 13px; }
.footer .footer-links a { transition: color 0.2s; }
.footer .footer-links a:hover { color: #6c5ce7; }
.footer-copy { font-size: 13px; }

/* ===== Disclaimer ===== */
.disclaimer {
  background: #fff6e5; border-top: 2px solid #f0b429;
  padding: 20px 0;
}
.disclaimer-content {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  flex-wrap: wrap; font-size: 15px; color: #8b6914;
}
.disclaimer-divider { color: #d4a84b; }
.disclaimer-warning { color: #c0392b; font-weight: 700; font-size: 15px; }

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 999;
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(108,92,231,0.3);
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: opacity 0.3s, transform 0.3s, box-shadow 0.3s;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { box-shadow: 0 8px 24px rgba(108,92,231,0.5); transform: translateY(-3px) translateZ(0); }

/* ===== Tilt Card ===== */
.tilt-card { transform-style: preserve-3d; perspective: 1000px; }
.tilt-card-inner { transition: transform 0.1s ease-out; }
.tilt-card, .tilt-card * { backface-visibility: hidden; }

/* ===== 3D Tilt Styles ===== */
.tilt-card { will-change: transform; }

/* ===== GEO Quiz ===== */
.geo-quiz { background: linear-gradient(180deg, #faf9ff, #fff); }
.quiz-wrapper { max-width: 680px; margin: 0 auto; }
.quiz-progress-bar {
  height: 4px; background: #f0edfa; border-radius: 2px; margin-bottom: 40px; overflow: hidden;
}
.quiz-progress-fill {
  height: 100%; background: linear-gradient(90deg, #6c5ce7, #a29bfe);
  border-radius: 2px; transition: width 0.4s ease;
}
.quiz-step { display: none; animation: fadeSlideIn 0.4s ease; }
.quiz-step.active { display: block; }
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.quiz-question {
  font-size: 20px; font-weight: 700; color: #1a1a2e; margin-bottom: 28px;
  text-align: center; line-height: 1.5;
}
.quiz-options { display: flex; flex-direction: column; gap: 12px; }
.quiz-option {
  padding: 16px 24px; background: #fff; border: 2px solid #f0edfa;
  border-radius: 14px; font-size: 15px; color: #444; cursor: pointer;
  text-align: left; transition: all 0.3s; font-family: inherit;
}
.quiz-option:hover { border-color: #6c5ce7; background: #faf8ff; transform: translateX(4px) translateZ(0); }
.quiz-option.selected {
  border-color: #6c5ce7; background: rgba(108,92,231,0.06); color: #6c5ce7; font-weight: 600;
}

/* Quiz Result */
.quiz-result { text-align: center; animation: fadeSlideIn 0.5s ease; }
.result-circle { width: 120px; height: 120px; margin: 0 auto 24px; position: relative; }
.result-circle svg { width: 100%; height: 100%; }
.result-score {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.result-score span { font-size: 36px; font-weight: 800; color: #6c5ce7; }
.result-score small { font-size: 14px; color: #999; margin-top: -4px; }
.result-level { font-size: 22px; font-weight: 700; margin-bottom: 12px; color: #1a1a2e; }
.result-tips { font-size: 14px; color: #888; margin-bottom: 28px; line-height: 1.6; max-width: 400px; margin-left: auto; margin-right: auto; }
.result-actions { display: flex; gap: 16px; justify-content: center; }

/* Quiz Retry Button - Outline Style */
.quiz-btn-retry {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 30px; font-size: 15px; font-weight: 600;
  background: #fff; color: #6c5ce7; border: 2px solid #6c5ce7;
  cursor: pointer; transition: all 0.3s ease; position: relative; overflow: hidden;
}
.quiz-btn-retry:hover {
  background: #faf9ff; transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108,92,231,0.15);
}
.quiz-btn-retry svg { transition: transform 0.4s ease; }
.quiz-btn-retry:hover svg { transform: rotate(-180deg); }

/* Quiz Contact Button - Solid Gradient Style */
.quiz-btn-contact {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 30px; font-size: 15px; font-weight: 600;
  background: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%); color: #fff;
  text-decoration: none; cursor: pointer; position: relative; overflow: hidden;
  transition: all 0.3s ease; border: none;
  box-shadow: 0 4px 15px rgba(108,92,231,0.3);
}
.quiz-btn-contact:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108,92,231,0.45);
  background: linear-gradient(135deg, #5f4fd6 0%, #8f7fff 100%);
}
.quiz-btn-contact::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%); transition: transform 0.5s;
}
.quiz-btn-contact:hover::before { transform: translateX(100%); }
.quiz-btn-contact svg { transition: transform 0.3s ease; }
.quiz-btn-contact:hover svg { transform: translateX(4px); }

/* ===== Before/After ===== */
.ba-section { background: #fff; }
.ba-comparison { max-width: 900px; margin: 0 auto; }
.ba-slider {
  position: relative; border-radius: 20px; overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08); min-height: 360px;
}
.ba-before, .ba-after {
  position: absolute; top: 0; left: 0; width: 100%; padding: 36px 48px; min-height: 360px;
}
.ba-before { background: #fff; z-index: 2; }
.ba-after { background: #faf9ff; z-index: 1; }
.ba-label {
  display: inline-block; padding: 4px 14px; border-radius: 12px;
  font-size: 12px; font-weight: 700; margin-bottom: 20px;
  background: #f0edfa; color: #888;
}
.ba-label.after { background: rgba(108,92,231,0.1); color: #6c5ce7; }
.ba-label-row { display: flex; justify-content: flex-end; }
.ba-query { font-size: 14px; color: #6c5ce7; font-weight: 600; margin-bottom: 16px; }
.ba-items { display: flex; flex-direction: column; gap: 12px; }
.ba-item {
  padding: 14px 18px; border-radius: 10px; font-size: 14px; line-height: 1.5;
  background: #f5f5f5; color: #666;
}
.ba-item.highlight { background: rgba(108,92,231,0.06); color: #1a1a2e; border-left: 3px solid #6c5ce7; }
.ba-item.highlight strong { color: #6c5ce7; }
.ba-note { font-size: 12px; color: #999; margin-top: 14px; font-style: italic; }
.ba-note.good { color: #00b894; }
.ba-handle {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 40px;
  z-index: 10; cursor: ew-resize; display: flex; align-items: center; justify-content: center;
  transform: translateX(-50%);
}
.ba-handle::before {
  content: ''; position: absolute; top: 0; width: 3px; height: calc(50% - 28px);
  background: #6c5ce7; box-shadow: 0 0 8px rgba(108,92,231,0.5);
}
.ba-handle::after {
  content: ''; position: absolute; bottom: 0; width: 3px; height: calc(50% - 28px);
  background: #6c5ce7; box-shadow: 0 0 8px rgba(108,92,231,0.5);
}
.ba-handle-btn {
  position: relative; width: 44px; height: 44px; border-radius: 50%;
  background: #6c5ce7; color: #fff; display: flex; align-items: center; justify-content: center;
  gap: 3px; font-size: 11px; box-shadow: 0 4px 16px rgba(108,92,231,0.5);
  cursor: ew-resize; z-index: 1; transition: transform 0.2s;
}
.ba-handle:hover .ba-handle-btn { transform: scale(1.1); }

/* ===== Testimonials ===== */
.testimonials { background: #faf9ff; }
.testimonial-carousel { position: relative; max-width: 800px; margin: 0 auto; }
.testimonial-carousel-inner { overflow: hidden; border-radius: 16px; }
.testimonial-track { display: flex; transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1); }
.testimonial-card {
  min-width: 100%; padding: 20px 70px;
  box-sizing: border-box;
}
.testimonial-quote {
  font-size: 72px; line-height: 1; color: #6c5ce7; opacity: 0.2;
  font-family: Georgia, serif; margin-bottom: -20px;
}
.testimonial-card p {
  font-size: 16px; line-height: 1.8; color: #444; margin-bottom: 24px;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.ta-avatar {
  width: 44px; height: 44px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center; font-size: 16px; font-weight: 700;
  color: #fff;
}
.ta-avatar.ta1 { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }
.ta-avatar.ta2 { background: linear-gradient(135deg, #00b894, #55efc4); }
.ta-avatar.ta3 { background: linear-gradient(135deg, #f6c445, #f9a825); }
.ta-avatar.ta4 { background: linear-gradient(135deg, #fd79a8, #e84393); }
.testimonial-author strong { display: block; font-size: 14px; color: #1a1a2e; }
.testimonial-author span { font-size: 12px; color: #999; }
.testimonial-dots { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }
.t-dot {
  width: 10px; height: 10px; border-radius: 50%; background: #e0dcee;
  cursor: pointer; transition: all 0.3s;
}
.t-dot.active { background: #6c5ce7; width: 28px; border-radius: 5px; }
.t-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 42px; height: 42px; border-radius: 50%; background: #fff;
  border: 1px solid #f0edfa; cursor: pointer; display: flex;
  align-items: center; justify-content: center; color: #6c5ce7;
  transition: all 0.3s; box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.t-arrow:hover { background: #6c5ce7; color: #fff; border-color: #6c5ce7; }
.t-prev { left: 10px; }
.t-next { right: 10px; }

/* ===== Pricing ===== */
.pricing { background: #fff; }
.pricing-grid { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.pricing-card {
  background: #fff; border-radius: 20px; padding: 36px; flex: 1; min-width: 280px; max-width: 360px;
  border: 1px solid #f0edfa; text-align: center;
  transition: transform 0.4s, box-shadow 0.4s;
}
.pricing-card:hover { transform: translateY(-6px) translateZ(0); box-shadow: 0 16px 40px rgba(0,0,0,0.08); }
.pricing-card.popular {
  border-color: #6c5ce7; box-shadow: 0 8px 32px rgba(108,92,231,0.15);
  position: relative;
}
.pricing-card.popular::before {
  content: '最受欢迎'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, #6c5ce7, #a29bfe); color: #fff;
  padding: 4px 20px; border-radius: 12px; font-size: 12px; font-weight: 600;
}
.pricing-badge { font-size: 14px; font-weight: 700; color: #6c5ce7; margin-bottom: 16px; }
.pricing-badge.elite { color: #f9a825; }
.pricing-entries {
  display: flex; align-items: baseline; justify-content: center; gap: 4px;
  margin-bottom: 4px;
}
.pe-num {
  font-size: 42px; font-weight: 800;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.pe-text {
  font-size: 16px; font-weight: 600; color: #6c5ce7;
}
.pricing-price { margin-bottom: 8px; }
.pricing-price .currency { font-size: 20px; font-weight: 600; color: #1a1a2e; vertical-align: top; }
.pricing-price .amount { font-size: 44px; font-weight: 800; color: #1a1a2e; }
.pricing-price .period { font-size: 14px; color: #999; }
.pricing-name { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: #1a1a2e; }
.pricing-desc { font-size: 13px; color: #888; margin-bottom: 24px; }
.pricing-features { text-align: left; margin-bottom: 28px; }
.pricing-features li {
  font-size: 14px; padding: 8px 0; color: #333; display: flex; align-items: center; gap: 10px;
}
.pricing-features li::before { content: '✓'; color: #e74c3c; font-weight: 700; font-size: 14px; }
.pricing-features li.disabled { color: #bbb; }
.pricing-features li.disabled::before { content: '✗'; color: #ccc; }
.pricing-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 36px; border-radius: 30px; font-size: 15px; font-weight: 600;
  text-decoration: none; cursor: pointer; position: relative; overflow: hidden;
  border: none;
  background: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(108,92,231,0.25);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.pricing-btn::after {
  content: '→'; font-size: 18px; font-weight: 400;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.pricing-btn:hover { }
.pricing-btn:hover::after { transform: translateX(6px); }
.pricing-btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: translateX(-100%); transition: none;
}
.pricing-btn:hover::before { transform: translateX(100%); }

.pricing-card.popular .pricing-btn {
  background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
  box-shadow: 0 4px 20px rgba(255,107,107,0.35);
}
.pricing-card.popular .pricing-btn:hover { }

/* ===== FAQ ===== */
.faq { background: #faf9ff; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid #f0edfa; }
.faq-question {
  width: 100%; padding: 22px 0; background: none; border: none;
  font-size: 17px; font-weight: 600; color: #1a1a2e; cursor: pointer;
  text-align: left; display: flex; justify-content: space-between; align-items: center;
  font-family: inherit; transition: color 0.3s;
}
.faq-question:hover { color: #6c5ce7; }
.faq-icon { font-size: 20px; color: #6c5ce7; transition: transform 0.3s; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .faq-answer { max-height: 300px; padding-bottom: 20px; }
.faq-answer p { font-size: 15px; color: #666; line-height: 1.7; }

/* ===== Contact ===== */
.contact { background: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-form .tag { margin-bottom: 16px; }
.contact-form h2 { font-size: 32px; font-weight: 800; margin-bottom: 8px; color: #1a1a2e; }
.contact-form > p { font-size: 15px; color: #888; margin-bottom: 32px; }
.contact-info-cards { display: flex; flex-direction: column; gap: 16px; }
.info-card {
  display: flex; align-items: center; gap: 16px; padding: 20px;
  background: #faf9ff; border-radius: 14px; border: 1px solid #f0edfa;
  transition: transform 0.3s, box-shadow 0.3s;
}
.info-card:hover { transform: translateY(-2px) translateZ(0); box-shadow: 0 8px 24px rgba(108,92,231,0.1); }
.info-icon { font-size: 28px; flex-shrink: 0; }
.info-text h4 { font-size: 15px; font-weight: 600; color: #1a1a2e; margin-bottom: 4px; }
.info-text p { font-size: 15px; color: #444; font-weight: 500; }
.contact-side { min-height: 200px; display: flex; flex-direction: column; gap: 20px; }
.contact-about-card {
  background: #faf9ff;
  border-radius: 16px; padding: 32px;
  border: 1px solid #f0edfa;
}
.about-header { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.about-logo {
  width: 44px; height: 44px; border-radius: 12px; overflow: hidden; flex-shrink: 0;
  background: #fff; border: 1px solid #f0edfa;
}
.about-logo img { width: 100%; height: 100%; object-fit: cover; }
.about-header h3 {
  font-size: 22px; font-weight: 700; color: #1a1a2e;
}
.contact-about-card p {
  font-size: 14px; color: #555; line-height: 1.8;
}
.contact-side-bottom { flex: 1; }
.wechat-card {
  background: #faf9ff;
  border-radius: 16px; padding: 24px;
  border: 1px solid #f0edfa;
  text-align: center;
}
.wechat-card h4 { font-size: 16px; font-weight: 700; color: #1a1a2e; margin-bottom: 6px; }
.wechat-card p { font-size: 13px; color: #888; margin-bottom: 16px; }
.wechat-qrcode {
  width: 160px; height: 160px; margin: 0 auto;
  border-radius: 12px; overflow: hidden;
  border: 1px solid #f0edfa;
  background: #fff;
}
.wechat-qrcode img { width: 100%; height: 100%; object-fit: contain; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero .container { flex-direction: column; gap: 48px; }
  .hero h1 { font-size: 32px; }
  .hero-visual { width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .flow-steps { flex-direction: column; align-items: center; }
  .flow-step { max-width: 100%; }
  .flow-step .step-arrow { display: none; }
  .case-grid { grid-template-columns: 1fr; }
  .stats-bar .container { flex-wrap: wrap; gap: 24px; }
  .platforms { grid-template-columns: repeat(2, 1fr); }
  .hero-float { display: none; }
  .hero-canvas, .hero-grid, .hero-scanlines, .hero-keywords { display: none; }
  .hero-orb { display: none; }
  .hero h1 { font-size: 32px; }
  .hero-stats { gap: 24px; }
  .hero-visual { min-height: 320px; }
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
  .particle-canvas { display: none; }
  .pricing-grid { flex-direction: column; align-items: center; }
  .pricing-card { max-width: 100%; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-info-cards { flex-direction: column; }
  .contact-side { min-height: auto; }
  .contact-side-bottom { min-height: 120px; }
  .t-arrow { display: none; }
  .ba-handle { display: none; }
  .ba-before, .ba-after { position: relative; padding: 20px; min-height: auto; }
  .ba-before { clip-path: none !important; }
}