/* ========== CSS Variables ========== */
:root {
  --color-primary: #25324c;
  --color-secondary: #efeff8;
  --color-accent: #8e67b8;
  --color-gold: #bda554;
  --color-white: #ffffff;
  --color-dark: #1a2236;
  --color-text: #4a5568;
  --color-text-light: #718096;
  --color-border: #e2e8f0;
  --color-bg-light: #f7f8fc;
  --gradient-primary: linear-gradient(135deg, #25324c 0%, #3d4f6f 100%);
  --gradient-accent: linear-gradient(135deg, #8e67b8 0%, #a67dd4 50%, #bda554 100%);
  --gradient-hero: linear-gradient(160deg, #1a2236 0%, #25324c 40%, #3d4f6f 100%);
  --shadow-sm: 0 1px 3px rgba(37, 50, 76, 0.08);
  --shadow-md: 0 4px 16px rgba(37, 50, 76, 0.1);
  --shadow-lg: 0 8px 32px rgba(37, 50, 76, 0.12);
  --shadow-xl: 0 16px 48px rgba(37, 50, 76, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-en: 'Inter', sans-serif;
  --font-zh: 'Noto Sans SC', 'Inter', sans-serif;
  --font-ko: 'Noto Sans KR', 'Inter', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-en);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body[lang="zh"],
body[lang="zh-TW"],
body[lang="ja"] {
  font-family: var(--font-zh);
}

body[lang="ko"] {
  font-family: var(--font-ko);
}

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  line-height: 1.3;
  font-weight: 700;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Header / Navigation ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  transition: var(--transition);
}

.header.scrolled .logo {
  color: var(--color-primary);
}

.logo img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.header.scrolled .nav-link {
  color: var(--color-text);
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .nav-link:hover {
  color: var(--color-accent);
  background: rgba(142, 103, 184, 0.08);
}

.nav-link i {
  font-size: 0.8rem;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  margin-left: 8px;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.header.scrolled .lang-btn {
  color: var(--color-text);
  background: var(--color-secondary);
  border-color: var(--color-border);
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.header.scrolled .lang-btn:hover {
  border-color: var(--color-accent);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 100;
  overflow: hidden;
}

.lang-switcher.active .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--color-text);
  transition: var(--transition);
}

.lang-dropdown a:hover,
.lang-dropdown a.active {
  background: var(--color-secondary);
  color: var(--color-accent);
}

/* CTA Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary:hover {
  background: #7a56a3;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(142, 103, 184, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  background: transparent;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}

.header.scrolled .hamburger span {
  background: var(--color-primary);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(26, 34, 54, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: var(--transition);
}

.mobile-nav.active {
  display: flex;
  opacity: 1;
}

.mobile-nav a {
  font-size: 1.2rem;
  color: var(--color-white);
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mobile-nav a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-gold);
}

.mobile-nav .btn-primary {
  margin-top: 16px;
  font-size: 1.1rem;
  padding: 14px 32px;
}

/* ========== Hero Section ========== */
.hero {
  background: var(--gradient-hero);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  min-height: auto;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(142, 103, 184, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(189, 165, 84, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(142, 103, 184, 0.2);
  border: 1px solid rgba(142, 103, 184, 0.3);
  border-radius: 50px;
  color: #c4a8e0;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 20px;
  line-height: 1.2;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero h1 span {
  background: linear-gradient(135deg, #c4a8e0, #bda554);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.6;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-cta .btn-primary {
  padding: 14px 36px;
  font-size: 1.05rem;
  background: var(--gradient-accent);
  border: none;
}

.hero-cta .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(142, 103, 184, 0.4);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* ========== Section Headers ========== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(142, 103, 184, 0.1);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ========== Features Section ========== */
.features {
  background: var(--color-bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(142, 103, 184, 0.15);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(142, 103, 184, 0.1);
  color: var(--color-accent);
  font-size: 1.4rem;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.features-cta {
  text-align: center;
  margin-top: 48px;
}

/* ========== Use Cases Section ========== */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.use-case-card {
  text-align: center;
  padding: 40px 24px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.use-case-card:nth-child(1) { border-top: 3px solid var(--color-accent); }
.use-case-card:nth-child(2) { border-top: 3px solid var(--color-gold); }
.use-case-card:nth-child(3) { border-top: 3px solid #5b9bd5; }
.use-case-card:nth-child(4) { border-top: 3px solid #e07b7b; }

.use-case-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.6rem;
  border-radius: 50%;
}

.use-case-card:nth-child(1) .use-case-icon {
  background: rgba(142, 103, 184, 0.1);
  color: var(--color-accent);
}

.use-case-card:nth-child(2) .use-case-icon {
  background: rgba(189, 165, 84, 0.1);
  color: var(--color-gold);
}

.use-case-card:nth-child(3) .use-case-icon {
  background: rgba(91, 155, 213, 0.1);
  color: #5b9bd5;
}

.use-case-card:nth-child(4) .use-case-icon {
  background: rgba(224, 123, 123, 0.1);
  color: #e07b7b;
}

.use-case-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.use-case-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ========== Pricing Section ========== */
.pricing {
  background: var(--color-bg-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
}

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

.pricing-card.popular {
  border: 2px solid var(--color-accent);
  transform: scale(1.03);
}

.pricing-card.popular:hover {
  transform: scale(1.03) translateY(-4px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: var(--gradient-accent);
  color: var(--color-white);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 50px;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 16px 0 8px;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.pricing-card .price-desc {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.pricing-features li i.fa-check {
  color: #22c55e;
  font-size: 0.8rem;
}

.pricing-features li i.fa-xmark {
  color: #cbd5e1;
  font-size: 0.8rem;
}

.pricing-features li.disabled {
  color: var(--color-text-light);
}

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

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

/* ========== Testimonials Section ========== */
.testimonials-overview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-bottom: 48px;
  padding: 32px;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
}

.rating-big {
  text-align: center;
}

.rating-big .score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
}

.rating-big .stars {
  color: var(--color-gold);
  font-size: 1.2rem;
  margin: 8px 0;
}

.rating-big .count {
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.rating-bars {
  flex: 1;
  max-width: 320px;
}

.rating-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 0.82rem;
  color: var(--color-text-light);
}

.rating-bar-row span:first-child {
  width: 48px;
  text-align: right;
}

.rating-bar {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.rating-bar-fill {
  height: 100%;
  background: var(--color-gold);
  border-radius: 4px;
  transition: width 1s ease;
}

.rating-bar-row span:last-child {
  width: 36px;
}

.testimonials-carousel {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
  min-width: calc(33.333% - 16px);
  margin: 0 8px;
  padding: 32px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.testimonial-stars {
  color: var(--color-gold);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

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

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.9rem;
}

.testimonial-author-info h4 {
  font-size: 0.9rem;
  font-weight: 600;
}

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

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.85rem;
}

.carousel-btn:hover {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: var(--transition);
}

.carousel-dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 4px;
}

.testimonial-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 40px;
}

.testimonial-tag {
  padding: 8px 18px;
  background: var(--color-bg-light);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

/* ========== Comparison Section ========== */
.comparison {
  background: var(--color-bg-light);
}

.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  min-width: 640px;
}

.comparison-table thead th {
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-secondary);
  text-align: center;
  border-bottom: 2px solid var(--color-border);
}

.comparison-table thead th:first-child {
  text-align: left;
}

.comparison-table thead th.highlight {
  background: var(--color-accent);
  color: var(--color-white);
}

.comparison-table tbody td {
  padding: 16px 24px;
  font-size: 0.9rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--color-primary);
}

.comparison-table tbody td.highlight {
  background: rgba(142, 103, 184, 0.04);
}

.comparison-table tbody td i.fa-check {
  color: var(--color-accent);
  font-weight: 700;
}

.comparison-table tbody td i.fa-xmark {
  color: #cbd5e1;
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* ========== FAQ Section ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(142, 103, 184, 0.3);
}

.faq-item.active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.98rem;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question i {
  font-size: 0.85rem;
  color: var(--color-accent);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--color-text);
  line-height: 1.7;
}

/* ========== Final CTA Section ========== */
.final-cta {
  background: var(--gradient-hero);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(142, 103, 184, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta .container {
  position: relative;
  z-index: 1;
}

.final-cta h2 {
  font-size: 2.4rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
}

.final-cta .btn-primary {
  padding: 18px 48px;
  font-size: 1.15rem;
  background: var(--gradient-accent);
}

.final-cta .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(142, 103, 184, 0.5);
}

/* ========== Footer ========== */
.footer {
  background: var(--color-dark);
  padding: 48px 0 24px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-brand span {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-white);
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: var(--transition);
  z-index: 900;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #7a56a3;
  transform: translateY(-4px);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .pricing-card.popular {
    transform: none;
  }

  .pricing-card.popular:hover {
    transform: translateY(-4px);
  }

  .testimonial-card {
    min-width: calc(50% - 16px);
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header .btn-primary {
    display: none;
  }

  .header .lang-switcher {
    margin-right: 8px;
  }

  .hero {
    padding: 120px 0 60px;
  }

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

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

  .hero-stats {
    gap: 24px;
  }

  .hero-stat-value {
    font-size: 1.4rem;
  }

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

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

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .testimonials-overview {
    flex-direction: column;
    gap: 24px;
  }

  .testimonial-card {
    min-width: calc(100% - 16px);
  }

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .comparison-table-wrapper {
    margin: 0 -24px;
    border-radius: 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 16px 32px;
    justify-content: center;
  }

  .hero-stat {
    width: calc(50% - 20px);
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn-primary,
  .hero-cta .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .pricing-card {
    padding: 32px 20px;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }
}