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

body {
  font-family: system-ui, -apple-system, sans-serif;
  color: #0a0a0a;
  line-height: 1.6;
}

.theme-5 {
  --brand-color: #ef4444;
  --brand-hover: #dc2626;
  --dark-text: #0a0a0a;
  --light-text: #737373;
  --surface: #fafafa;
}

.content-wrapper {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
}

.main-nav {
  background: white;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.nav-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
}

.brand-section {
  font-size: 23px;
  font-weight: 700;
  color: var(--brand-color);
}

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

.links-section a {
  text-decoration: none;
  color: var(--light-text);
  font-weight: 500;
  transition: color 0.2s;
}

.links-section a:hover {
  color: var(--brand-color);
}

.intro-section {
  padding: 110px 0;
  background: linear-gradient(to bottom right, #fee2e2, #fef2f2);
}

.intro-content {
  max-width: 750px;
  margin: 0 auto;
  text-align: center;
}

.display-title {
  font-size: 56px;
  font-weight: 900;
  margin-bottom: 24px;
  color: var(--dark-text);
  line-height: 1.1;
}

.display-text {
  font-size: 21px;
  color: var(--light-text);
  margin-bottom: 36px;
  line-height: 1.7;
}

.action-group {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.action-link {
  display: inline-block;
  padding: 15px 40px;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s;
}

.action-link.primary {
  background: var(--brand-color);
  color: white;
}

.action-link.primary:hover {
  background: var(--brand-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(239, 68, 68, 0.3);
}

.features-area {
  padding: 90px 0;
  background: white;
}

.area-title {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  color: var(--dark-text);
}

.grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 36px;
}

.feature-block {
  padding: 36px;
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid #e5e5e5;
  transition: all 0.3s;
}

.feature-block:hover {
  border-color: var(--brand-color);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.block-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.block-emoji {
  font-size: 36px;
}

.block-header h3 {
  font-size: 22px;
  color: var(--dark-text);
}

.feature-block p {
  color: var(--light-text);
  line-height: 1.7;
}

.method-section {
  padding: 90px 0;
  background: var(--surface);
}

.method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.method-text h2 {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--dark-text);
}

.method-text p {
  font-size: 18px;
  color: var(--light-text);
  margin-bottom: 24px;
  line-height: 1.7;
}

.benefits-list {
  list-style: none;
  padding: 0;
}

.benefits-list li {
  padding: 12px 0;
  padding-left: 28px;
  position: relative;
  color: var(--light-text);
}

.benefits-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand-color);
  font-weight: 700;
}

.method-visual {
  display: flex;
  justify-content: center;
}

.visual-box {
  width: 100%;
  max-width: 320px;
  padding: 56px 40px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.metric-display {
  text-align: center;
}

.metric-number {
  font-size: 56px;
  font-weight: 900;
  color: var(--brand-color);
  margin-bottom: 12px;
}

.metric-label {
  font-size: 18px;
  color: var(--light-text);
}

.info-section {
  padding: 90px 0;
  background: white;
}

.info-box {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: 56px 40px;
  background: linear-gradient(135deg, var(--brand-color), var(--brand-hover));
  border-radius: 18px;
  color: white;
}

.info-box h2 {
  font-size: 36px;
  margin-bottom: 16px;
  font-weight: 700;
}

.info-box p {
  font-size: 19px;
  opacity: 0.95;
}

.page-footer {
  background: var(--dark-text);
  color: white;
  padding: 30px 0;
  text-align: center;
}

@media (max-width: 768px) {
  .display-title {
    font-size: 38px;
  }

  .method-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .links-section {
    gap: 16px;
    font-size: 14px;
  }
}