@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap);
@import url(https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap);
@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap);
@import url(https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap);

/* 导入Inter字体 */
/* 导入JetBrains Mono等宽字体 */

/* 导入统一字体设计系统 */

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

/* 导入Google Fonts */

/* 导入统一字体设计系统 */

/* Reset and base styles - youmind.ai style */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 字体设计系统 */
:root {
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'JetBrains Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  
  /* 字体大小系统 */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  
  /* 字体重量 */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
}

/* 强制第一个产品静态样式，覆盖所有可能的动效 */
.first-product-static {
  transition: none !important;
  transform: none !important;
  animation: none !important;
  will-change: auto !important;
  margin-top: 50px !important;
  position: relative !important;
  z-index: 100 !important;
}

.first-product-static:hover {
  transition: none !important;
  transform: none !important;
  animation: none !important;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  line-height: 1.6;
  color: #1a1a1a;
  background: #ffffff;
  font-size: 1rem;
  font-size: var(--text-base);
  font-weight: 400;
  font-weight: var(--font-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* 字体工具类 */
.font-primary { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif; font-family: var(--font-primary); }
.font-mono { font-family: 'JetBrains Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace; font-family: var(--font-mono); }

.text-xs { font-size: 0.75rem; font-size: var(--text-xs); }
.text-sm { font-size: 0.875rem; font-size: var(--text-sm); }
.text-base { font-size: 1rem; font-size: var(--text-base); }
.text-lg { font-size: 1.125rem; font-size: var(--text-lg); }
.text-xl { font-size: 1.25rem; font-size: var(--text-xl); }
.text-2xl { font-size: 1.5rem; font-size: var(--text-2xl); }
.text-3xl { font-size: 1.875rem; font-size: var(--text-3xl); }
.text-4xl { font-size: 2.25rem; font-size: var(--text-4xl); }
.text-5xl { font-size: 3rem; font-size: var(--text-5xl); }
.text-6xl { font-size: 3.75rem; font-size: var(--text-6xl); }

.font-light { font-weight: 300; font-weight: var(--font-light); }
.font-normal { font-weight: 400; font-weight: var(--font-normal); }
.font-medium { font-weight: 500; font-weight: var(--font-medium); }
.font-semibold { font-weight: 600; font-weight: var(--font-semibold); }
.font-bold { font-weight: 700; font-weight: var(--font-bold); }
.font-extrabold { font-weight: 800; font-weight: var(--font-extrabold); }

.App {
  min-height: 100vh;
}

/* Navigation - youmind.ai exact style */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  height: 72px;
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-left {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #1a1a1a;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

.navbar-logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 24px;
  height: 24px;
  color: #1a1a1a;
}

.navbar-title {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
  letter-spacing: -0.01em;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.navbar-menu-item {
  font-size: 15px;
  font-weight: 400;
  color: #666;
  text-decoration: none;
  transition: color 0.2s ease;
  padding: 8px 0;
  letter-spacing: -0.005em;
}

.navbar-menu-item:hover {
  color: #1a1a1a;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 0 0 auto;
}

.navbar-auth-link {
  font-size: 15px;
  font-weight: 400;
  color: #666;
  text-decoration: none;
  transition: color 0.2s ease;
  padding: 8px 12px;
}

.navbar-auth-link:hover {
  color: #1a1a1a;
}

.navbar-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #1a1a1a;
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
  border: none;
  outline: none;
  letter-spacing: -0.005em;
}

.navbar-cta-btn:hover {
  background: #333;
  transform: translateY(-1px);
}

/* Mobile menu styles */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #1a1a1a;
}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(254, 254, 254, 0.95);
    -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
  }

  .navbar-menu.mobile-open {
    display: flex;
  }

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

  .navbar-right {
    gap: 12px;
  }

  .navbar-auth-link {
    display: none;
  }
}

/* Hero Section - youmind.ai style */
.hero {
  padding: 100px 24px 60px;
  text-align: center;
  background: #ffffff;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.hero-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: clamp(48px, 10vw, 84px);
  font-weight: 800;
  font-weight: var(--font-extrabold);
  line-height: 1.1;
  color: #1a1a1a;
  letter-spacing: -0.03em;
  margin-bottom: 0;
}

.hero-subtitle {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: 1.25rem;
  font-size: var(--text-xl);
  color: #666;
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.5;
  font-weight: 400;
  font-weight: var(--font-normal);
  letter-spacing: -0.01em;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #1a1a1a;
  color: #ffffff;
  padding: 14px 28px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s ease;
  letter-spacing: -0.005em;
  min-width: 160px;
  border: none;
  outline: none;
  box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.15);
}

.hero-cta-glow {
  position: absolute;
  left: 50%;
  top: 90%;
  transform: translate(-50%, 0);
  width: 180px;
  height: 60px;
  pointer-events: none;
  z-index: 0;
  filter: blur(18px);
  background: radial-gradient(circle at 50% 30%, #ffe066 0%, #ff8a00 30%, #e52e71 60%, #43cea2 80%, #185a9d 100%, transparent 100%);
  opacity: 0.7;
  mix-blend-mode: screen;
  border-radius: 50%;
  overflow: visible;
}

.hero-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
  border-radius: 50px;
}

.hero-cta:hover {
  background: #333333;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.25);
}

.hero-cta:hover::before {
  left: 100%;
}

.hero-cta svg {
  transition: transform 0.2s ease;
}

.hero-cta:hover svg {
  transform: translateX(2px);
}

/* Reviews Section - youmind.ai style */
.reviews {
  padding: 15px 24px;
  background: #fafafa;
}

.reviews-container {
  max-width: 1200px;
  margin: 0 auto;
}

.reviews-title {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: 1.875rem;
  font-size: var(--text-3xl);
  font-weight: 600;
  font-weight: var(--font-semibold);
  text-align: center;
  color: #1a1a1a;
  margin-bottom: 15px;
  letter-spacing: -0.02em;
}

.reviews-row {
  display: flex;
  overflow: hidden;
  position: relative;
  width: 100%;
  mask: linear-gradient(to right, transparent, white 20px, white calc(100% - 20px), transparent);
  -webkit-mask: linear-gradient(to right, transparent, white 20px, white calc(100% - 20px), transparent);
}

.reviews-scroll {
  display: flex;
  gap: 24px;
  animation: scroll-reviews 60s linear infinite;
  width: -webkit-fit-content;
  width: fit-content;
}

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

.reviews-scroll:hover {
  animation-play-state: paused;
}

.review-card {
  background: #fff;
  padding: 18px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: all 0.2s ease;
  min-width: 280px;
  max-width: 280px;
  flex-shrink: 0;
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.review-quote {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-size: var(--text-base);
  line-height: 1.5;
  color: #1a1a1a;
  margin-bottom: 18px;
  font-style: italic;
  letter-spacing: -0.01em;
  font-weight: 400;
  font-weight: var(--font-normal);
}

.review-user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.review-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-placeholder {
  font-size: 18px;
  font-weight: 600;
  color: #666;
}

.review-name {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-size: var(--text-base);
  font-weight: 600;
  font-weight: var(--font-semibold);
  color: #1a1a1a;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.review-role {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-size: var(--text-sm);
  font-weight: 400;
  font-weight: var(--font-normal);
  color: #666;
  letter-spacing: -0.005em;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 120px 20px 80px;
  }

  .hero-title {
    font-size: clamp(32px, 8vw, 48px);
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-cta {
    padding: 14px 24px;
    font-size: 15px;
  }

  .reviews {
    padding: 80px 20px;
  }

  .reviews-title {
    font-size: 28px;
    margin-bottom: 60px;
  }

  .reviews-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .review-card {
    padding: 24px;
  }

  .review-quote {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .navbar-container {
    padding: 0 16px;
  }

  .hero {
    padding: 100px 16px 60px;
  }

  .reviews {
    padding: 60px 16px;
  }

  .review-card {
    padding: 20px;
  }
}

/* 加载动画 */
@keyframes spin {
  0% { 
    transform: rotate(0deg); 
  }
  100% { 
    transform: rotate(360deg); 
  }
}