/* ===== CSS Variables ===== */
:root {
  --primary: #E53935;
  --primary-dark: #C62828;
  --primary-light: #FF5252;
  --secondary: #FF6F00;
  --accent: #FFD600;
  --dark: #1a1a2e;
  --dark-light: #16213e;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --bg: #ffffff;
  --bg-light: #f8f9fa;
  --bg-gray: #f0f2f5;
  --border: #e0e0e0;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 0.95rem;
  color: var(--text-light);
  font-weight: 500;
  position: relative;
}

.nav a:hover, .nav a.active {
  color: var(--primary);
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.nav a:hover::after, .nav a.active::after {
  width: 100%;
}

.nav-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white !important;
  padding: 10px 24px;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.9rem;
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(229,57,53,0.4);
}

.nav-btn::after {
  display: none !important;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(135deg, #fff5f5 0%, #fff8e1 50%, #f3e5f5 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(229,57,53,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(229,57,53,0.1);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--dark);
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 36px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(229,57,53,0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(229,57,53,0.4);
}

.btn-outline {
  background: white;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-mockup {
  width: 300px;
  height: 600px;
  background: linear-gradient(135deg, var(--dark), var(--dark-light));
  border-radius: 40px;
  padding: 12px;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: perspective(1000px) rotateY(-5deg);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  padding: 20px;
}

.phone-screen h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.phone-screen p {
  font-size: 0.9rem;
  opacity: 0.9;
  color: white;
}

/* ===== Stats Section ===== */
.stats {
  padding: 60px 0;
  background: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* ===== Features Section ===== */
.features {
  padding: 100px 0;
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  background: rgba(229,57,53,0.1);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.05);
}

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

.feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(229,57,53,0.1), rgba(255,111,0,0.1));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--dark);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 100px 0;
  background: white;
}

.steps {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.2;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  position: relative;
  z-index: 2;
}

.step h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--dark);
}

.step p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== Testimonials ===== */
.testimonials {
  padding: 100px 0;
  background: var(--bg-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid rgba(0,0,0,0.05);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 1rem;
}

.testimonial-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
}

.testimonial-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== CTA Section ===== */
.cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--dark), var(--dark-light));
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(229,57,53,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
}

.cta p {
  font-size: 1.15rem;
  opacity: 0.8;
  margin-bottom: 36px;
  position: relative;
}

.cta .btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-size: 1.1rem;
  padding: 16px 40px;
  position: relative;
}

/* ===== Download Page ===== */
.download-section {
  padding: 140px 0 100px;
  background: linear-gradient(135deg, #fff5f5 0%, #fff8e1 100%);
  text-align: center;
}

.download-section h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.download-section > .container > p {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 50px;
}

.download-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.download-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.download-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.download-card-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.download-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--dark);
}

.download-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.download-card .btn {
  width: 100%;
  justify-content: center;
}

/* ===== About Page ===== */
.about-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #fff5f5 0%, #f3e5f5 100%);
  text-align: center;
}

.about-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.about-hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

.about-content {
  padding: 80px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-values {
  padding: 80px 0;
  background: var(--bg-light);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.value-card {
  text-align: center;
  padding: 30px 20px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,0.05);
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.value-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--dark);
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== FAQ Page ===== */
.faq-hero {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, #fff5f5 0%, #fff8e1 100%);
  text-align: center;
}

.faq-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.faq-hero p {
  font-size: 1.15rem;
  color: var(--text-light);
}

.faq-section {
  padding: 80px 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(229,57,53,0.1);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--dark);
  font-size: 1.05rem;
}

.faq-question .arrow {
  font-size: 1.2rem;
  transition: var(--transition);
  color: var(--text-muted);
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 24px 20px;
  max-height: 500px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== Legal Pages (Privacy & Terms) ===== */
.legal-hero {
  padding: 140px 0 60px;
  background: var(--bg-light);
  text-align: center;
}

.legal-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.legal-hero p {
  font-size: 1rem;
  color: var(--text-muted);
}

.legal-content {
  padding: 60px 0 100px;
}

.legal-body {
  max-width: 800px;
  margin: 0 auto;
}

.legal-body h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bg-gray);
}

.legal-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--dark);
  margin-top: 24px;
  margin-bottom: 12px;
}

.legal-body p {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-body ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-body ul li {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 8px;
  position: relative;
  padding-left: 16px;
}

.legal-body ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* ===== Features Page ===== */
.features-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #fff5f5 0%, #fff8e1 50%, #f3e5f5 100%);
  text-align: center;
}

.features-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.features-hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.features-detail {
  padding: 80px 0;
}

.feature-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 80px;
}

.feature-row:nth-child(even) {
  flex-direction: row-reverse;
}

.feature-row-content {
  flex: 1;
}

.feature-row-content .feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 0 16px;
  font-size: 1.5rem;
}

.feature-row-content h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
}

.feature-row-content p {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.feature-row-content ul {
  padding-left: 0;
}

.feature-row-content ul li {
  font-size: 0.95rem;
  color: var(--text-light);
  padding: 6px 0;
  padding-left: 24px;
  position: relative;
}

.feature-row-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

.feature-row-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.feature-img-placeholder {
  width: 100%;
  max-width: 400px;
  height: 300px;
  background: linear-gradient(135deg, rgba(229,57,53,0.08), rgba(255,111,0,0.08));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  opacity: 0.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: white;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  opacity: 0.7;
  padding: 6px 0;
  color: rgba(255,255,255,0.8);
}

.footer-col a:hover {
  opacity: 1;
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

.footer-bottom a {
  color: rgba(255,255,255,0.8);
}

.footer-bottom a:hover {
  color: var(--primary-light);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 12px 0;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
}

.breadcrumb ul {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-light);
}

.breadcrumb a:hover {
  color: var(--primary);
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 45px;
  height: 45px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(229,57,53,0.3);
  border: none;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(229,57,53,0.4);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero p {
    margin: 0 auto 36px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-row {
    flex-direction: column !important;
  }

  .download-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow);
    gap: 16px;
  }

  .nav.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    flex-direction: column;
    gap: 30px;
  }

  .steps::before {
    display: none;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cta h2 {
    font-size: 1.8rem;
  }

  .download-cards {
    grid-template-columns: 1fr;
  }

  .download-section h1 {
    font-size: 2rem;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }
}