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

:root {
  /* Colors */
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --purple-500: #8b5cf6;
  --purple-600: #7c3aed;
  --pink-500: #ec4899;
  --pink-600: #db2777;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --orange-500: #f97316;
  --cyan-500: #06b6d4;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --teal-500: #14b8a6;
  --indigo-500: #6366f1;
  
  /* Neutrals */
  --white: #ffffff;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  
  /* Spacing */
  --container-max: 1200px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition: all 0.3s ease;
}

body {
  font-family: var(--font-family);
  background: var(--white);
  color: var(--slate-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  body {
    background: var(--slate-950);
    color: var(--slate-100);
  }
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
}

@media (prefers-color-scheme: dark) {
  .navbar {
    background: rgba(2, 6, 23, 0.8);
    border-bottom-color: var(--slate-800);
  }
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue-600), var(--purple-600));
  border-radius: 8px;
  color: white;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--blue-600), var(--purple-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-600);
  text-decoration: none;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--slate-900);
}

@media (prefers-color-scheme: dark) {
  .nav-link {
    color: var(--slate-400);
  }
  .nav-link:hover {
    color: white;
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-family);
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
}

.btn-lg {
  font-size: 1.125rem;
  padding: 0.75rem 2rem;
}

.btn-primary {
  background: linear-gradient(90deg, var(--blue-600), var(--purple-600));
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(90deg, var(--blue-700), var(--purple-600));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  background: transparent;
  color: var(--slate-600);
}

.btn-ghost:hover {
  background: var(--slate-100);
  color: var(--slate-900);
}

@media (prefers-color-scheme: dark) {
  .btn-ghost {
    color: var(--slate-400);
  }
  .btn-ghost:hover {
    background: var(--slate-800);
    color: white;
  }
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--slate-200);
  color: var(--slate-900);
}

.btn-outline:hover {
  background: var(--slate-100);
}

@media (prefers-color-scheme: dark) {
  .btn-outline {
    border-color: var(--slate-700);
    color: white;
  }
  .btn-outline:hover {
    background: var(--slate-800);
  }
}

.btn-white {
  background: white;
  color: var(--slate-900);
}

.btn-white:hover {
  background: var(--slate-100);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-white {
  background: transparent;
  border: 1px solid white;
  color: white;
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 6rem 0 8rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(226, 232, 240, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(226, 232, 240, 0.5) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, white, rgba(255, 255, 255, 0.6));
}

@media (prefers-color-scheme: dark) {
  .hero-bg {
    background-image: 
      linear-gradient(to right, rgba(51, 65, 85, 0.3) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(51, 65, 85, 0.3) 1px, transparent 1px);
    mask-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.5));
  }
}

.hero-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 2.75rem;
  }
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--slate-600);
  margin-bottom: 3rem;
  max-width: 42rem;
  line-height: 1.8;
}

@media (prefers-color-scheme: dark) {
  .hero-subtitle {
    color: var(--slate-400);
  }
}

/* Hero Stats Grid - 优化版 */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 900px;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .hero-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}

.stat-card {
  background: var(--white);
  border: 2px solid var(--slate-200);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

@media (prefers-color-scheme: dark) {
  .stat-card {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
}

.stat-card-blue { border-color: var(--blue-500); }
.stat-card-purple { border-color: var(--purple-500); }
.stat-card-pink { border-color: var(--pink-500); }
.stat-card-orange { border-color: var(--orange-500); }

.stat-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  flex-shrink: 0;
}

.stat-card-blue .stat-card-icon { background: linear-gradient(135deg, var(--blue-500), var(--blue-600)); color: white; }
.stat-card-purple .stat-card-icon { background: linear-gradient(135deg, var(--purple-500), var(--purple-600)); color: white; }
.stat-card-pink .stat-card-icon { background: linear-gradient(135deg, var(--pink-500), var(--pink-600)); color: white; }
.stat-card-orange .stat-card-icon { background: linear-gradient(135deg, var(--orange-500), var(--orange-600)); color: white; }

.stat-card-content {
  flex: 1;
}

.stat-card-value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

@media (min-width: 640px) {
  .stat-card-value {
    font-size: 2rem;
  }
}

.stat-card-blue .stat-card-value,
.stat-card-purple .stat-card-value,
.stat-card-pink .stat-card-value,
.stat-card-orange .stat-card-value {
  background: linear-gradient(90deg, var(--slate-700), var(--slate-900));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card-label {
  font-size: 0.8125rem;
  color: var(--slate-600);
  font-weight: 500;
}

@media (prefers-color-scheme: dark) {
  .stat-card-blue .stat-card-value,
  .stat-card-purple .stat-card-value,
  .stat-card-pink .stat-card-value,
  .stat-card-orange .stat-card-value {
    background: linear-gradient(90deg, var(--slate-200), var(--slate-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .stat-card-label {
    color: var(--slate-400);
  }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 450px;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

/* Sections */
.section {
  padding: 6rem 0;
}

.section-white {
  background: var(--white);
}

@media (prefers-color-scheme: dark) {
  .section-white {
    background: var(--slate-900);
  }
}

.section-gray {
  background: var(--slate-50);
}

@media (prefers-color-scheme: dark) {
  .section-gray {
    background: var(--slate-950);
  }
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--slate-100);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

@media (prefers-color-scheme: dark) {
  .section-badge {
    background: var(--slate-800);
  }
}

.section-title {
  font-size: 1.875rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--slate-600);
  max-width: 42rem;
  margin: 0 auto;
}

@media (prefers-color-scheme: dark) {
  .section-subtitle {
    color: var(--slate-400);
  }
}

/* Problems Container - 优化版 */
.problems-container {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.problem-item {
  display: flex;
  align-items: center;
  gap: 2rem;
}

@media (max-width: 767px) {
  .problem-item,
  .problem-item-reverse {
    flex-direction: column;
    text-align: center;
  }
}

.problem-item-reverse {
  flex-direction: row-reverse;
}

@media (min-width: 768px) {
  .problem-item-reverse {
    flex-direction: row-reverse;
  }
}

.problem-visual {
  flex-shrink: 0;
}

.problem-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.problem-circle::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  opacity: 0.2;
}

.problem-circle-orange::before {
  background: radial-gradient(circle, var(--orange-500) 0%, transparent 70%);
}

.problem-circle-red::before {
  background: radial-gradient(circle, var(--red-500) 0%, transparent 70%);
}

.problem-circle-purple::before {
  background: radial-gradient(circle, var(--purple-500) 0%, transparent 70%);
}

.problem-circle-blue::before {
  background: radial-gradient(circle, var(--blue-500) 0%, transparent 70%);
}

.problem-circle-orange { background: linear-gradient(135deg, rgba(249, 115, 22, 0.15), rgba(249, 115, 22, 0.05)); color: var(--orange-500); }
.problem-circle-red { background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05)); color: var(--red-500); }
.problem-circle-purple { background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05)); color: var(--purple-500); }
.problem-circle-blue { background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05)); color: var(--blue-500); }

.problem-info {
  flex: 1;
}

.problem-number {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(90deg, var(--slate-200), var(--slate-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

@media (prefers-color-scheme: dark) {
  .problem-number {
    background: linear-gradient(90deg, var(--slate-700), var(--slate-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
}

.problem-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.problem-description {
  font-size: 1.0625rem;
  color: var(--slate-600);
  line-height: 1.8;
}

@media (prefers-color-scheme: dark) {
  .problem-description {
    color: var(--slate-400);
  }
}

/* Timeline Container - 优化版 */
.timeline-container {
  position: relative;
  padding: 2rem 0;
}

.timeline-line {
  width: 4px;
  height: 40px;
  background: linear-gradient(to bottom, var(--slate-200), var(--slate-300));
  margin-left: 20px;
}

@media (prefers-color-scheme: dark) {
  .timeline-line {
    background: linear-gradient(to bottom, var(--slate-700), var(--slate-600));
  }
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
}

@media (min-width: 768px) {
  .timeline-item-right {
    flex-direction: row-reverse;
  }
  .timeline-item-right .timeline-marker {
    margin-left: 0;
    margin-right: 2rem;
  }
  .timeline-item-right .timeline-content {
    text-align: right;
  }
  .timeline-item-right .timeline-header {
    flex-direction: row-reverse;
  }
}

.timeline-marker {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 2rem;
}

.timeline-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: white;
}

.timeline-dot-1 { background: linear-gradient(135deg, var(--blue-500), var(--blue-600)); }
.timeline-dot-2 { background: linear-gradient(135deg, var(--purple-500), var(--purple-600)); }
.timeline-dot-3 { background: linear-gradient(135deg, var(--pink-500), var(--pink-600)); }
.timeline-dot-4 { background: linear-gradient(135deg, var(--green-500), var(--green-600)); }

.timeline-content {
  flex: 1;
  background: var(--white);
  border: 2px solid var(--slate-200);
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
  .timeline-content {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
  .timeline-content:hover {
    border-color: var(--blue-500);
  }
}

.timeline-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--slate-200);
}

@media (prefers-color-scheme: dark) {
  .timeline-header {
    border-bottom-color: var(--slate-800);
  }
}

.timeline-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--slate-100);
  border-radius: 12px;
  color: var(--slate-700);
}

@media (prefers-color-scheme: dark) {
  .timeline-number {
    background: var(--slate-800);
    color: var(--slate-300);
  }
}

.timeline-titles {
  flex: 1;
}

.timeline-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.timeline-phase {
  font-size: 0.875rem;
  color: var(--slate-500);
  font-weight: 500;
}

.timeline-product h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-product p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.8;
}

@media (prefers-color-scheme: dark) {
  .timeline-product p {
    color: var(--slate-400);
  }
}

.product-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: linear-gradient(90deg, var(--blue-600), var(--purple-600));
  color: white;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 9999px;
  margin-bottom: 1rem;
}

.product-badge-purple {
  background: linear-gradient(90deg, var(--purple-600), var(--pink-600));
}

.product-badge-pink {
  background: linear-gradient(90deg, var(--pink-600), var(--red-500));
}

.product-badge-green {
  background: linear-gradient(90deg, var(--green-600), var(--teal-500));
}

/* Advantages Container - 优化版 */
.advantages-container {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .advantages-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .advantages-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

.advantage-item {
  display: flex;
  justify-content: center;
}

.advantage-card {
  width: 100%;
  max-width: 380px;
  background: var(--white);
  border: 2px solid var(--slate-200);
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

@media (prefers-color-scheme: dark) {
  .advantage-card {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
}

.advantage-card-blue { border-color: var(--blue-500); }
.advantage-card-purple { border-color: var(--purple-500); }
.advantage-card-green { border-color: var(--green-500); }
.advantage-card-orange { border-color: var(--orange-500); }
.advantage-card-pink { border-color: var(--pink-500); }

.advantage-icon-large {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  margin-bottom: 1.5rem;
}

.advantage-card-blue .advantage-icon-large { background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05)); color: var(--blue-600); }
.advantage-card-purple .advantage-icon-large { background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05)); color: var(--purple-600); }
.advantage-card-green .advantage-icon-large { background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05)); color: var(--green-600); }
.advantage-card-orange .advantage-icon-large { background: linear-gradient(135deg, rgba(249, 115, 22, 0.15), rgba(249, 115, 22, 0.05)); color: var(--orange-500); }
.advantage-card-pink .advantage-icon-large { background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(236, 72, 153, 0.05)); color: var(--pink-600); }

.advantage-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.advantage-card p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.7;
  margin-bottom: 1rem;
}

@media (prefers-color-scheme: dark) {
  .advantage-card p {
    color: var(--slate-400);
  }
}

.advantage-badge {
  margin-top: auto;
  padding: 0.5rem 1rem;
  background: var(--slate-100);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--slate-700);
}

@media (prefers-color-scheme: dark) {
  .advantage-badge {
    background: var(--slate-800);
    color: var(--slate-300);
  }
}

/* Cases Grid */
.cases-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.case-card:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

@media (prefers-color-scheme: dark) {
  .case-card {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
  .case-card:hover {
    border-color: var(--blue-500);
  }
}

.case-badge {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: linear-gradient(90deg, var(--blue-600), var(--purple-600));
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  margin: 1.5rem 1.5rem 1rem;
}

.case-content {
  padding: 0 1.5rem 1.5rem;
}

.case-client {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.case-products {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.case-product {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  background: var(--slate-100);
  color: var(--slate-700);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 6px;
}

@media (prefers-color-scheme: dark) {
  .case-product {
    background: var(--slate-800);
    color: var(--slate-300);
  }
}

.case-challenge {
  padding: 1rem;
  background: var(--slate-50);
  border-radius: 8px;
  margin-bottom: 1rem;
}

@media (prefers-color-scheme: dark) {
  .case-challenge {
    background: var(--slate-800);
  }
}

.case-challenge h4 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
  color: var(--slate-700);
}

@media (prefers-color-scheme: dark) {
  .case-challenge h4 {
    color: var(--slate-300);
  }
}

.case-challenge p {
  font-size: 0.875rem;
  color: var(--slate-600);
}

@media (prefers-color-scheme: dark) {
  .case-challenge p {
    color: var(--slate-400);
  }
}

.case-results {
  display: flex;
  gap: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--slate-200);
}

@media (prefers-color-scheme: dark) {
  .case-results {
    border-top-color: var(--slate-800);
  }
}

.result-item {
  flex: 1;
}

.result-value {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--green-500), var(--teal-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-label {
  font-size: 0.8125rem;
  color: var(--slate-600);
  margin-top: 0.25rem;
}

@media (prefers-color-scheme: dark) {
  .result-label {
    color: var(--slate-400);
  }
}

/* About Section */
.about-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.about-mission,
.about-vision {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
}

.about-mission:hover,
.about-vision:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-lg);
}

@media (prefers-color-scheme: dark) {
  .about-mission,
  .about-vision {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
}

.about-mission h3,
.about-vision h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--blue-600);
}

.about-mission p,
.about-vision p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.7;
}

@media (prefers-color-scheme: dark) {
  .about-mission p,
  .about-vision p {
    color: var(--slate-400);
  }
}

.about-values {
  background: var(--slate-50);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

@media (prefers-color-scheme: dark) {
  .about-values {
    background: var(--slate-800);
  }
}

.about-values h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.values-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.value-tag {
  padding: 0.5rem 1rem;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-700);
}

@media (prefers-color-scheme: dark) {
  .value-tag {
    background: var(--slate-900);
    border-color: var(--slate-700);
    color: var(--slate-300);
  }
}

.about-team {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
}

.about-team:hover {
  border-color: var(--purple-500);
  box-shadow: var(--shadow-lg);
}

@media (prefers-color-scheme: dark) {
  .about-team {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
}

.about-team h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--purple-600);
}

.about-team p {
  font-size: 0.9375rem;
  color: var(--slate-600);
  line-height: 1.7;
}

@media (prefers-color-scheme: dark) {
  .about-team p {
    color: var(--slate-400);
  }
}

/* Resources Grid */
.resources-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.resource-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition);
  cursor: pointer;
}

.resource-card:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
  .resource-card {
    background: var(--slate-900);
    border-color: var(--slate-800);
  }
  .resource-card:hover {
    border-color: var(--blue-500);
  }
}

.resource-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 1rem;
}

.resource-icon-blue { background: rgba(59, 130, 246, 0.1); color: var(--blue-600); }
.resource-icon-purple { background: rgba(139, 92, 246, 0.1); color: var(--purple-600); }
.resource-icon-green { background: rgba(34, 197, 94, 0.1); color: var(--green-500); }
.resource-icon-orange { background: rgba(249, 115, 22, 0.1); color: var(--orange-500); }

@media (prefers-color-scheme: dark) {
  .resource-icon-blue { background: rgba(59, 130, 246, 0.2); }
  .resource-icon-purple { background: rgba(139, 92, 246, 0.2); }
  .resource-icon-green { background: rgba(34, 197, 94, 0.2); }
  .resource-icon-orange { background: rgba(249, 115, 22, 0.2); }
}

.resource-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.resource-description {
  font-size: 0.9375rem;
  color: var(--slate-600);
  margin-bottom: 1rem;
  line-height: 1.6;
}

@media (prefers-color-scheme: dark) {
  .resource-description {
    color: var(--slate-400);
  }
}

.resource-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue-600);
  text-decoration: none;
  transition: var(--transition);
}

.resource-link:hover {
  color: var(--blue-700);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(90deg, var(--blue-600), var(--purple-600), var(--pink-500));
  padding: 6rem 0;
}

.cta-content {
  text-align: center;
}

.cta-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .cta-title {
    font-size: 2.5rem;
  }
}

.cta-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

@media (min-width: 640px) {
  .cta-actions {
    flex-direction: row;
  }
}

/* Footer */
.footer {
  background: var(--slate-900);
  color: var(--slate-400);
  padding: 4rem 0 2rem;
}

@media (prefers-color-scheme: dark) {
  .footer {
    background: var(--slate-950);
  }
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-brand .logo-text {
  color: white;
  -webkit-text-fill-color: white;
}

.footer-intro {
  font-size: 0.875rem;
  margin-top: 1rem;
  line-height: 1.7;
}

.footer-title {
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  padding: 0.375rem 0;
}

.footer-links a {
  color: var(--slate-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid var(--slate-800);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
}

.footer-icp {
  margin-top: 0.5rem;
}

.footer-icp a {
  color: var(--slate-500);
  text-decoration: none;
  transition: var(--transition);
}

.footer-icp a:hover {
  color: white;
}

/* Responsive Hide */
.sm-hidden {
  display: block;
}

@media (min-width: 640px) {
  .sm-hidden {
    display: none;
  }
}