/* ainude.love 现代极简橙绿配色，移动优先 */
:root {
  --main-orange: #FF9800;
  --main-green: #43A047;
  --bg-light: #FFF8E1;
  --text-dark: #222;
  --accent: #fff;
}
html {
  font-size: 16px;
  font-family: 'Noto Sans Devanagari', Arial, sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  scroll-behavior: smooth;
}
body {
  margin: 0;
  padding: 0;
  background: var(--bg-light);
}
header {
  background: linear-gradient(90deg, var(--main-orange), var(--main-green));
  color: var(--accent);
  padding: 1rem 0 0.5rem 0;
  box-shadow: 0 2px 8px rgba(67,160,71,0.05);
}
.header-inner {
  max-width: 900px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.logo-icon {
  width: 38px;
  height: 38px;
}
.logo-text {
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent);
}
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.2rem;
}
nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  transition: color 0.2s;
}
nav a:hover {
  color: #222;
}
.hero {
  background: linear-gradient(120deg, #FFF8E1 50%, #FF9800 120%);
  padding: 2.5rem 0 2rem 0;
  text-align: center;
}
.hero h1 {
  font-size: 2.2rem;
  color: var(--main-orange);
  margin-bottom: 0.7rem;
}
.hero p {
  font-size: 1.18rem;
  color: #444;
  margin-bottom: 1.2rem;
}
.btn-primary {
  background: linear-gradient(90deg, var(--main-orange), var(--main-green));
  color: #fff;
  border: none;
  border-radius: 2.2rem;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.75rem 2.2rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255,152,0,0.08);
  transition: background 0.2s, transform 0.2s;
}
.btn-primary:hover {
  background: linear-gradient(90deg, var(--main-green), var(--main-orange));
  transform: translateY(-2px) scale(1.04);
}
.features {
  background: #fff;
  padding: 2rem 0 2rem 0;
}
.features-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}
.feature-card {
  background: #F1F8E9;
  border-radius: 1.2rem;
  box-shadow: 0 2px 8px rgba(67,160,71,0.06);
  padding: 1.2rem 1.1rem;
  width: 260px;
  text-align: center;
  transition: box-shadow 0.18s;
}
.feature-card:hover {
  box-shadow: 0 4px 18px rgba(255,152,0,0.10);
}
.feature-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 0.7rem;
}
.features h3 {
  color: var(--main-green);
  font-size: 1.16rem;
  margin: 0.4rem 0 0.3rem 0;
}
.features p {
  color: #333;
  font-size: 0.99rem;
}
.section-header {
  text-align: center;
  margin-bottom: 1.5rem;
}
.section-header h2 {
  color: var(--main-orange);
  font-size: 1.5rem;
}
.how-it-works {
  background: #fffde7;
  padding: 2rem 0;
}
.steps {
  display: flex;
  justify-content: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}
.step {
  background: #FFF3E0;
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  width: 210px;
  text-align: center;
  margin-bottom: 1rem;
}
.step-number {
  background: var(--main-green);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  width: 2.2rem;
  height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}
.cta {
  background: linear-gradient(90deg, #43A047 60%, #FF9800 100%);
  color: #fff;
  text-align: center;
  padding: 2.2rem 0 2rem 0;
}
.cta h2 {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}
.cta p {
  font-size: 1.09rem;
  margin-bottom: 1.3rem;
}
.faq {
  background: #fff;
  padding: 1.7rem 0 2rem 0;
}
.faq-container {
  max-width: 800px;
  margin: auto;
}
.faq-item {
  background: #FFFDE7;
  border-radius: 0.9rem;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.faq-item h3 {
  color: var(--main-orange);
  font-size: 1.09rem;
  margin-bottom: 0.3rem;
}
footer {
  background: #222;
  color: #fff;
  padding: 2.1rem 0 1.2rem 0;
}
.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 900px;
  margin: auto;
  align-items: flex-start;
  gap: 2rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.7rem;
}
.footer-logo svg {
  width: 48px;
  height: 48px;
}
.footer-links h4 {
  margin: 0 0 0.5rem 0;
  font-size: 1.01rem;
  color: var(--main-orange);
}
.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links a {
  color: #fff;
  text-decoration: none;
  font-size: 0.98rem;
}
.footer-links a:hover {
  color: var(--main-green);
}
.footer-bottom {
  text-align: center;
  margin-top: 1.2rem;
  color: #fff;
  font-size: 0.98rem;
  opacity: 0.85;
}

@media (max-width: 600px) {
  .header-inner, .footer-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
  }
  .features-grid, .steps {
    flex-direction: column;
    align-items: center;
  }
  .feature-card, .step {
    width: 95vw;
    max-width: 330px;
  }
}