/* =============================================
   数果通 PC 网站首页样式
   主色调：绿色 #27AE60 / #1A5C35
   ============================================= */

/* ---------- CSS Variables ---------- */
:root {
  --green-primary: #27AE60;
  --green-dark: #1A5C35;
  --green-light: #2ECC71;
  --green-bg: #F0FBF4;
  --green-border: #A8E6C3;
  --orange-accent: #F39C12;
  --orange-dark: #E67E22;
  --text-dark: #1D2939;
  --text-medium: #4A5568;
  --text-light: #718096;
  --white: #FFFFFF;
  --gray-100: #F7F9F7;
  --gray-200: #EDF2F7;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.25s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul {
  list-style: none;
}

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

.section-tag {
  display: inline-block;
  background: var(--green-bg);
  color: var(--green-primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-medium);
  max-width: 580px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--green-primary);
  color: var(--white);
  border-color: var(--green-primary);
}

.btn-primary:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(39, 174, 96, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--green-primary);
  border-color: var(--green-primary);
}

.btn-outline:hover {
  background: var(--green-primary);
  color: var(--white);
  transform: translateY(-1px);
}

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

.btn-orange:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(243, 156, 18, 0.35);
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.25s ease;
}

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

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-img {
  height: 38px;
  width: auto;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--green-dark);
  letter-spacing: -0.02em;
}

.logo-text span {
  color: var(--green-primary);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-medium);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--green-primary);
  background: var(--green-bg);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 12px 24px 20px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu .nav-link {
  padding: 12px 8px;
  border-bottom: 1px solid var(--gray-200);
  border-radius: 0;
}

.mobile-menu .btn {
  margin-top: 12px;
  justify-content: center;
}

/* ---------- Hero ---------- */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--green-bg) 0%, #E8F8EE 40%, #F7FDF9 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(39,174,96,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(39,174,96,0.06) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--green-border);
  color: var(--green-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--green-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--green-primary);
  position: relative;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green-light), var(--green-primary));
  border-radius: 2px;
  opacity: 0.4;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 460px;
}

.hero-pain-points {
  display: flex;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.pain-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text-medium);
  box-shadow: var(--shadow-sm);
}

.pain-tag .icon {
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.qrcode-card {
  background: var(--white);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--gray-200);
  position: relative;
  z-index: 1;
}

.qrcode-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--green-light), var(--green-primary));
  z-index: -1;
  opacity: 0.2;
}

.qrcode-img-wrap {
  width: 160px;
  height: 160px;
  border-radius: var(--radius);
  background: var(--green-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border: 1px solid var(--green-border);
  overflow: hidden;
}

.qrcode-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.qrcode-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--green-primary);
}

.qrcode-placeholder svg {
  width: 64px;
  height: 64px;
  opacity: 0.6;
}

.qrcode-placeholder span {
  font-size: 12px;
  color: var(--text-light);
}

.qrcode-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.qrcode-sub {
  font-size: 13px;
  color: var(--text-light);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: 100%;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.stat-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--green-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-light);
}

/* ---------- Section: Features ---------- */
.features {
  padding: 96px 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green-light), var(--green-primary));
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--green-border);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon-wrap {
  width: 64px;
  height: 64px;
  background: var(--green-bg);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon-wrap {
  background: var(--green-primary);
  transform: scale(1.05);
}

.feature-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.65;
}

/* ---------- Section: How it Works ---------- */
.how-it-works {
  padding: 96px 0;
  background: var(--green-bg);
}

.steps-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}

.steps-track::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(10% + 18px);
  right: calc(10% + 18px);
  height: 2px;
  background: linear-gradient(90deg, var(--green-primary), var(--green-light));
  z-index: 0;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 12px;
  position: relative;
  z-index: 1;
}

.step-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--green-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.step-circle::after {
  content: attr(data-num);
  position: absolute;
  top: -8px;
  right: -8px;
  width: 22px;
  height: 22px;
  background: var(--green-primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.step-item:hover .step-circle {
  background: var(--green-primary);
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(39,174,96,0.3);
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-medium);
  line-height: 1.6;
}

/* ---------- Section: Roles ---------- */
.roles {
  padding: 96px 0;
  background: var(--white);
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.role-card {
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.role-card.boss {
  background: linear-gradient(145deg, #F0FBF4, #E8F8EE);
  border-color: var(--green-border);
}

.role-card.seller {
  background: linear-gradient(145deg, #EEF8FF, #E3F4FF);
  border-color: #A8D4F5;
}

.role-card.buyer {
  background: linear-gradient(145deg, #FFF8EE, #FFF3E3);
  border-color: #F5D0A8;
}

.role-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.role-avatar {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.role-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.role-subtitle {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 20px;
}

.role-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.role-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.5;
}

.role-feature-item::before {
  content: '✓';
  color: var(--green-primary);
  font-weight: 700;
  font-size: 13px;
  margin-top: 1px;
  flex-shrink: 0;
}

.role-card.seller .role-feature-item::before {
  color: #2D8BEF;
}

.role-card.buyer .role-feature-item::before {
  color: var(--orange-accent);
}

/* ---------- Section: FAQ ---------- */
.faq {
  padding: 96px 0;
  background: var(--gray-100);
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  user-select: none;
  transition: var(--transition);
}

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

.faq-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--green-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--green-primary);
  font-size: 18px;
  font-weight: 300;
}

.faq-item.open .faq-arrow {
  background: var(--green-primary);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.2s ease;
  padding: 0 24px;
}

.faq-answer-inner {
  font-size: 15px;
  color: var(--text-medium);
  line-height: 1.75;
  padding-bottom: 20px;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ---------- Section: CTA ---------- */
.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--green-dark) 0%, #22864B 60%, var(--green-primary) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-text .section-tag {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

.cta-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 12px;
}

.cta-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

.cta-qrcode {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 24px;
  text-align: center;
  flex-shrink: 0;
}

.cta-qrcode .qrcode-img-wrap {
  background: var(--white);
  border: none;
}

.cta-qrcode .qrcode-label {
  color: var(--white);
}

.cta-qrcode .qrcode-sub {
  color: rgba(255,255,255,0.6);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

.btn-white {
  background: var(--white);
  color: var(--green-dark);
  border-color: var(--white);
}

.btn-white:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.btn-ghost-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}

.btn-ghost-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-text {
  color: var(--white);
  font-size: 22px;
  margin-bottom: 12px;
}

.footer-brand .logo-text span {
  color: var(--green-light);
}

.footer-brand-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  max-width: 260px;
  margin-bottom: 20px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
}

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

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

.footer-icp {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

.footer-icp a {
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}

.footer-icp a:hover {
  color: rgba(255,255,255,0.7);
}

/* ---------- Scroll to top ---------- */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--green-primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .hero-title { font-size: 40px; }
  .section-title { font-size: 30px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-track { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .steps-track::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-right { order: -1; }
  .hero-desc { margin: 0 auto 36px; }
  .hero-pain-points { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-stats { max-width: 340px; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-text { display: flex; flex-direction: column; align-items: center; }
  .cta-actions { flex-direction: row; }
  .roles-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .navbar-nav, .navbar-actions { display: none; }
  .hamburger { display: flex; }
  
  .hero { padding: 100px 0 60px; }
  .hero-title { font-size: 32px; }
  .section-title { font-size: 26px; }
  .section-subtitle { font-size: 15px; }
  
  .features { padding: 64px 0; }
  .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  
  .how-it-works { padding: 64px 0; }
  .steps-track { grid-template-columns: 1fr; }
  .step-item { flex-direction: row; text-align: left; gap: 16px; }
  .step-circle { flex-shrink: 0; margin-bottom: 0; width: 56px; height: 56px; font-size: 22px; }
  
  .roles { padding: 64px 0; }
  .faq { padding: 64px 0; }
  .cta-section { padding: 64px 0; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn { justify-content: center; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
  
  .scroll-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
  .hero-title { font-size: 28px; }
  .section-title { font-size: 24px; }
}