/* ========== CSS Variables ========== */
:root {
  --color-primary: #071528;
  --color-secondary: #071528;
  --color-accent: #b1b3df;
  --color-accent2: #4cc2f8;
  --color-accent3: #4d50b3;
  --color-white: #ffffff;
  --color-light: #f0f1fa;
  --color-gray: #8a8ea8;
  --color-dark-text: #e8e9f3;
  --color-card-bg: rgba(255,255,255,0.04);
  --color-card-border: rgba(177,179,223,0.12);
  --gradient-hero: linear-gradient(135deg, #071528 0%, #0e2444 50%, #1a1e5a 100%);
  --gradient-cta: linear-gradient(135deg, #4d50b3 0%, #4cc2f8 100%);
  --gradient-accent: linear-gradient(135deg, #4cc2f8 0%, #4d50b3 100%);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.18);
  --shadow-btn: 0 4px 20px rgba(76,194,248,0.3);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --font-en: 'Inter', sans-serif;
  --font-zh: 'Noto Sans SC', 'Inter', sans-serif;
}

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

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

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

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
button { border: none; cursor: pointer; font-family: inherit; }

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

/* ========== Animation Keyframes ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-10px); }
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(76,194,248,.4); }
  50%     { box-shadow: 0 0 0 16px rgba(76,194,248,0); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .7s var(--transition), transform .7s var(--transition);
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Header / Navbar ========== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled {
  background: rgba(7,21,40,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 24px rgba(0,0,0,.3);
  padding: 10px 0;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
}
.nav-logo img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-accent2); }
.nav-links a i { font-size: .85rem; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}
.lang-btn {
  background: transparent;
  color: var(--color-accent);
  font-size: .9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-card-border);
  transition: all var(--transition);
}
.lang-btn:hover {
  border-color: var(--color-accent2);
  color: var(--color-accent2);
}
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(14,36,68,.96);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}
.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-dropdown a {
  display: block;
  padding: 8px 20px;
  font-size: .88rem;
  color: var(--color-accent);
  transition: all var(--transition);
}
.lang-dropdown a:hover {
  background: rgba(76,194,248,.08);
  color: var(--color-accent2);
}
.lang-dropdown a.active {
  color: var(--color-accent2);
  font-weight: 600;
}

/* CTA Button */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--gradient-cta);
  color: var(--color-white);
  font-size: .92rem;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--transition);
  box-shadow: var(--shadow-btn);
}
.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(76,194,248,.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  color: var(--color-accent2);
  font-size: .92rem;
  font-weight: 600;
  border-radius: 50px;
  border: 1.5px solid var(--color-accent2);
  transition: all var(--transition);
}
.btn-secondary:hover {
  background: rgba(76,194,248,.1);
  transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  padding: 4px;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: all var(--transition);
}
.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; right: 0; bottom: 0;
  background: rgba(7,21,40,.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}
.mobile-nav a {
  font-size: 1.3rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--color-accent2); }
.mobile-nav .btn-cta { margin-top: 12px; font-size: 1.1rem; padding: 14px 36px; }
.mobile-lang-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 8px;
}
.mobile-lang-links a {
  font-size: .9rem;
  padding: 4px 12px;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
}

/* ========== Hero Section ========== */
.hero {
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 80px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(76,194,248,.12) 0%, transparent 70%);
  top: -200px; right: -100px;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}
.hero::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(77,80,179,.15) 0%, transparent 70%);
  bottom: -100px; left: -50px;
  border-radius: 50%;
  animation: float 8s ease-in-out infinite reverse;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  animation: fadeInUp .8s ease-out;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--color-white) 30%, var(--color-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.18rem;
  color: var(--color-accent);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .btn-cta {
  font-size: 1.05rem;
  padding: 14px 36px;
  animation: pulse 2.5s ease-in-out infinite;
}

/* ========== Section Common ========== */
section {
  padding: 90px 0;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-white);
}
.section-header p {
  font-size: 1.05rem;
  color: var(--color-gray);
  max-width: 600px;
  margin: 0 auto;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-cta);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(76,194,248,.25);
  box-shadow: 0 8px 32px rgba(76,194,248,.1);
}
.feature-card:hover::before { opacity: 1; }
.feature-card .icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(76,194,248,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  color: var(--color-accent2);
}
.feature-card h3 {
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-white);
}
.feature-card p {
  font-size: .92rem;
  color: var(--color-gray);
  line-height: 1.7;
}
.features-cta {
  text-align: center;
  margin-top: 48px;
}

/* ========== Use Cases ========== */
.use-cases {
  background: linear-gradient(180deg, var(--color-primary) 0%, #0a1d35 100%);
}
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.use-case-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}
.use-case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(76,194,248,.08);
}
.use-case-card .icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 1.5rem;
}
.use-case-card:nth-child(1) .icon { background: rgba(76,194,248,.12); color: var(--color-accent2); }
.use-case-card:nth-child(2) .icon { background: rgba(77,80,179,.15); color: var(--color-accent3); }
.use-case-card:nth-child(3) .icon { background: rgba(177,179,223,.12); color: var(--color-accent); }
.use-case-card:nth-child(4) .icon { background: rgba(76,194,248,.12); color: var(--color-accent2); }
.use-case-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-white);
}
.use-case-card p {
  font-size: .88rem;
  color: var(--color-gray);
  line-height: 1.6;
}

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

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}
.pricing-card.popular {
  border-color: var(--color-accent2);
  box-shadow: 0 0 40px rgba(76,194,248,.12);
  transform: scale(1.04);
}
.pricing-card.popular::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-cta);
}
.popular-badge {
  display: inline-block;
  padding: 4px 16px;
  background: var(--gradient-cta);
  color: var(--color-white);
  font-size: .78rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.pricing-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-white);
}
.pricing-card .price {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-accent2);
  margin-bottom: 6px;
}
.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gray);
}
.pricing-card .price-desc {
  font-size: .88rem;
  color: var(--color-gray);
  margin-bottom: 28px;
}
.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}
.pricing-features li {
  padding: 8px 0;
  font-size: .9rem;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(177,179,223,.06);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li i.fa-check { color: var(--color-accent2); }
.pricing-features li i.fa-xmark { color: var(--color-gray); opacity: .5; }
.pricing-card .btn-cta { width: 100%; justify-content: center; }
.pricing-card .btn-secondary { width: 100%; justify-content: center; }

/* ========== Testimonials ========== */
.testimonials {
  background: linear-gradient(180deg, #0a1d35 0%, var(--color-primary) 100%);
}
.testimonials-overview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.rating-big {
  text-align: center;
}
.rating-big .score {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-accent2);
  line-height: 1;
}
.rating-big .stars {
  color: #f5a623;
  font-size: 1.2rem;
  margin: 8px 0;
}
.rating-big .count {
  font-size: .9rem;
  color: var(--color-gray);
}
.rating-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.rating-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
  color: var(--color-gray);
}
.rating-bar .bar {
  width: 140px;
  height: 8px;
  background: rgba(255,255,255,.06);
  border-radius: 4px;
  overflow: hidden;
}
.rating-bar .bar-fill {
  height: 100%;
  background: var(--gradient-cta);
  border-radius: 4px;
}

.testimonials-slider {
  position: relative;
  overflow: hidden;
}
.testimonials-track {
  display: flex;
  transition: transform .5s ease;
}
.testimonial-card {
  min-width: 100%;
  padding: 0 12px;
}
.testimonial-card-inner {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 700px;
  margin: 0 auto;
}
.testimonial-card .stars {
  color: #f5a623;
  margin-bottom: 14px;
}
.testimonial-card blockquote {
  font-size: 1.02rem;
  color: var(--color-accent);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-card .author {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-white);
}
.testimonial-card .role {
  font-size: .82rem;
  color: var(--color-gray);
}
.slider-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}
.slider-btn {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  transition: all var(--transition);
}
.slider-btn:hover {
  background: rgba(76,194,248,.12);
  color: var(--color-accent2);
  border-color: var(--color-accent2);
}

.testimonial-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 32px;
}
.testimonial-tags span {
  padding: 6px 16px;
  background: rgba(76,194,248,.08);
  border: 1px solid rgba(76,194,248,.15);
  border-radius: 50px;
  font-size: .82rem;
  color: var(--color-accent2);
}

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

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius);
  overflow: hidden;
}
.comparison-table thead th {
  padding: 18px 20px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--color-white);
  background: rgba(76,194,248,.06);
  text-align: center;
  border-bottom: 1px solid var(--color-card-border);
}
.comparison-table thead th:first-child { text-align: left; }
.comparison-table thead th.highlight {
  background: rgba(76,194,248,.14);
  color: var(--color-accent2);
}
.comparison-table tbody td {
  padding: 16px 20px;
  font-size: .9rem;
  color: var(--color-accent);
  text-align: center;
  border-bottom: 1px solid rgba(177,179,223,.06);
}
.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--color-white);
}
.comparison-table tbody td.highlight {
  background: rgba(76,194,248,.04);
}
.comparison-table tbody td i.fa-check { color: var(--color-accent2); font-size: 1.1rem; }
.comparison-table tbody td i.fa-xmark { color: var(--color-gray); opacity: .4; }

/* ========== FAQ ========== */
.faq {
  background: linear-gradient(180deg, var(--color-primary) 0%, #0a1d35 100%);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open { border-color: rgba(76,194,248,.2); }
.faq-question {
  width: 100%;
  background: var(--color-card-bg);
  color: var(--color-white);
  padding: 20px 24px;
  font-size: .98rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--transition);
}
.faq-question:hover { background: rgba(76,194,248,.04); }
.faq-question i {
  font-size: .85rem;
  color: var(--color-accent2);
  transition: transform var(--transition);
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: .92rem;
  color: var(--color-accent);
  line-height: 1.8;
}

/* ========== Final CTA ========== */
.final-cta {
  background: var(--gradient-cta);
  text-align: center;
  padding: 80px 24px;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,.08) 0%, transparent 70%);
  top: -200px; right: -100px;
  border-radius: 50%;
}
.final-cta h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 14px;
  position: relative;
}
.final-cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 36px;
  position: relative;
}
.final-cta .btn-cta {
  background: var(--color-white);
  color: var(--color-accent3);
  font-size: 1.12rem;
  padding: 16px 42px;
  box-shadow: 0 4px 24px rgba(0,0,0,.2);
  position: relative;
  animation: pulse 2.5s ease-in-out infinite;
}
.final-cta .btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}

/* ========== Footer ========== */
.footer {
  background: #050e1c;
  padding: 48px 0 24px;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(177,179,223,.08);
  flex-wrap: wrap;
}
.footer-brand {
  max-width: 280px;
}
.footer-brand .nav-logo { margin-bottom: 12px; }
.footer-brand p {
  font-size: .88rem;
  color: var(--color-gray);
  line-height: 1.7;
}
.footer-links-group {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: .85rem;
  color: var(--color-gray);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-accent2); }
.footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: .82rem;
  color: var(--color-gray);
}

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-cta);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-btn);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 900;
  cursor: pointer;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-3px);
}

/* ========== 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: 1fr; max-width: 420px; margin: 0 auto; }
  .pricing-card.popular { transform: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }

  .lang-btn { padding: 8px 10px; }
  .lang-btn-text { display: none; }
  .lang-btn i { font-size: 1rem; }

  .hero { padding: 120px 20px 60px; min-height: auto; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }

  section { padding: 60px 0; }
  .section-header h2 { font-size: 1.7rem; }

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

  .testimonials-overview { gap: 24px; }

  .comparison-table { font-size: .82rem; }
  .comparison-table thead th,
  .comparison-table tbody td { padding: 12px 10px; }

  .final-cta h2 { font-size: 1.7rem; }

  .footer-content { flex-direction: column; align-items: center; text-align: center; }
  .footer-links-group { justify-content: center; gap: 32px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.65rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .btn-cta, .btn-secondary { width: 100%; justify-content: center; }
  .pricing-grid { max-width: 100%; }
  .rating-bars { display: none; }
}