@charset "UTF-8";

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2ecc71;
  --primary-dark: #27ae60;
  --primary-light: #e8f8f0;
  --secondary: #3498db;
  --accent: #e67e22;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --text-lighter: #95a5a6;
  --bg: #ffffff;
  --bg-light: #f8f9fa;
  --bg-dark: #2c3e50;
  --border: #e9ecef;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
  --header-height: 70px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

body * {
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

a {
  text-decoration: none;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

ul,
ol {
  list-style: none;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.section-title p {
  font-size: 16px;
  color: var(--text-light);
}

.section-title .subtitle {
  display: inline-block;
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

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

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

.nav-menu {
  display: flex;
  gap: 8px;
}

.nav-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

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

.nav-menu li a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(46, 204, 113, 0.4);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--primary-light);
}

.menu-toggle i {
  font-size: 24px;
  color: var(--text);
}

.hero {
  padding-top: calc(var(--header-height) + 80px);
  padding-bottom: 80px;
  background: linear-gradient(180deg, var(--primary-light) 0%, #fff 100%);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

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

.hero-content .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(46, 204, 113, 0.1);
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--bg-dark);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

.download-btn img {
  width: 24px;
  height: 24px;
}

.download-btn .download-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.download-btn .download-text small {
  font-size: 11px;
  opacity: 0.8;
  font-weight: 400;
}

.download-btn .download-text strong {
  font-size: 14px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.hero-stats .stat-item {
  text-align: left;
}

.hero-stats .stat-item strong {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

.hero-stats .stat-item span {
  font-size: 14px;
  color: var(--text-light);
}

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

.hero-visual .phone-mockup {
  width: 280px;
  height: 560px;
  background: var(--bg-dark);
  border-radius: 40px;
  padding: 20px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
  position: relative;
}

.hero-visual .phone-mockup::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 25px;
  background: var(--bg-dark);
  border-radius: 15px;
  z-index: 2;
}

.hero-visual .phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 28px;
  overflow: hidden;
  position: relative;
}

.hero-visual .phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual .floating-card {
  position: absolute;
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 3s ease-in-out infinite;
}

.hero-visual .floating-card.card-1 {
  top: 60px;
  left: -30px;
}

.hero-visual .floating-card.card-2 {
  bottom: 60px;
  right: -30px;
  animation-delay: 1.5s;
}

.hero-visual .floating-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
}

.hero-visual .floating-card .card-icon i {
  color: var(--primary);
}

.hero-visual .floating-card .card-info strong {
  display: block;
  font-size: 14px;
  color: var(--text);
}

.hero-visual .floating-card .card-info span {
  font-size: 12px;
  color: var(--text-light);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.product-showcase {
  background: var(--bg-light);
}

.showcase-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

.showcase-content {
  display: none;
}

.showcase-content.active {
  display: block;
}

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

.showcase-item {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.showcase-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.showcase-item img {
  width: 250px;
  height: 450px;
  object-fit: contain;
  background: var(--bg-light);
}

.showcase-item .showcase-info {
  padding: 20px;
}

.showcase-item .showcase-info h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.showcase-item .showcase-info p {
  font-size: 14px;
  color: var(--text-light);
}

.version-section {
  background: var(--bg);
}

.version-timeline {
  max-width: 800px;
  margin: 0 auto;
}

.version-item {
  display: flex;
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.version-item:last-child {
  border-bottom: none;
}

.version-date {
  flex-shrink: 0;
  width: 120px;
}

.version-date .version-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 8px;
}

.version-date span {
  font-size: 14px;
  color: var(--text-light);
}

.version-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.version-content ul {
  padding-left: 0;
}

.version-content ul li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 6px;
  line-height: 1.6;
}

.version-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.device-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
}

.device-section .section-title h2,
.device-section .section-title p {
  color: #fff;
}

.device-section .section-title p {
  opacity: 0.9;
}

.device-section .section-title .subtitle {
  color: rgba(255, 255, 255, 0.8);
}

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

.device-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
}

.device-card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.device-card .device-icon {
  width: 70px;
  height: 70px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.device-card .device-icon i {
  font-size: 32px;
  color: #fff;
}

.device-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.device-card p {
  font-size: 14px;
  opacity: 0.85;
  line-height: 1.6;
  margin-bottom: 20px;
}

.device-card .device-specs {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.device-card .device-specs .spec-item {
  text-align: center;
}

.device-card .device-specs strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
}

.device-card .device-specs span {
  font-size: 12px;
  opacity: 0.8;
}

.reviews-section {
  background: var(--bg-light);
}

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

.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}

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

.review-card .quote-icon {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 40px;
  color: var(--primary-light);
}

.review-card .review-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.review-card .avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 600;
}

.review-card .reviewer-info h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.review-card .reviewer-info span {
  font-size: 13px;
  color: var(--text-light);
}

.review-card .rating {
  display: flex;
  gap: 4px;
  margin-bottom: 15px;
}

.review-card .rating i {
  font-size: 16px;
  color: var(--accent);
}

.review-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

.faq-section {
  background: var(--bg);
}

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

.faq-item {
  background: var(--bg-light);
  border-radius: var(--radius);
  margin-bottom: 15px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}

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

.faq-question .arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
}

.faq-item.open .faq-question {
  color: var(--primary);
}

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

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

.faq-answer-content {
  padding: 0 25px 20px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

.cta-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a2e 100%);
  color: #fff;
  text-align: center;
}

.cta-section h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 15px;
}

.cta-section p {
  font-size: 18px;
  opacity: 0.8;
  margin-bottom: 30px;
}

.cta-downloads {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer {
  background: #1a1a2e;
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px;
}

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

.footer-brand .logo {
  color: #fff;
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-social a i {
  color: #fff;
  font-size: 18px;
}

.footer-links h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links ul li {
  margin-bottom: 12px;
}

.footer-links ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.footer-links ul li a:hover {
  color: var(--primary);
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(46, 204, 113, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(46, 204, 113, 0.5);
}

.back-to-top i {
  font-size: 24px;
}

i.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

i.icon-home {
  background-image: url("../icons/home.svg");
  width: 20px;
  height: 20px;
}

i.icon-product {
  background-image: url("../icons/product.svg");
  width: 20px;
  height: 20px;
}

i.icon-version {
  background-image: url("../icons/version.svg");
  width: 20px;
  height: 20px;
}

i.icon-device {
  background-image: url("../icons/device.svg");
  width: 20px;
  height: 20px;
}

i.icon-faq {
  background-image: url("../icons/faq.svg");
  width: 20px;
  height: 20px;
}

i.icon-star {
  background-image: url("../icons/star.svg");
  width: 16px;
  height: 16px;
}

i.icon-menu {
  background-image: url("../icons/menu.svg");
  width: 24px;
  height: 24px;
}

i.icon-close {
  background-image: url("../icons/close.svg");
  width: 24px;
  height: 24px;
}

i.icon-download {
  background-image: url("../icons/download.svg");
  width: 20px;
  height: 20px;
}

i.icon-arrow-right {
  background-image: url("../icons/arrow-right.svg");
  width: 16px;
  height: 16px;
}

i.icon-arrow-left {
  background-image: url("../icons/arrow-left.svg");
  width: 16px;
  height: 16px;
}

i.icon-arrow-up {
  background-image: url("../icons/arrow-up.svg");
  width: 24px;
  height: 24px;
}

i.icon-user {
  background-image: url("../icons/user.svg");
  width: 20px;
  height: 20px;
}

i.icon-message {
  background-image: url("../icons/message.svg");
  width: 20px;
  height: 20px;
}

i.icon-phone {
  background-image: url("../icons/phone.svg");
  width: 20px;
  height: 20px;
}

i.icon-email {
  background-image: url("../icons/email.svg");
  width: 20px;
  height: 20px;
}

i.icon-settings {
  background-image: url("../icons/settings.svg");
  width: 24px;
  height: 24px;
}

i.icon-file {
  background-image: url("../icons/file.svg");
  width: 24px;
  height: 24px;
}

i.icon-check {
  background-image: url("../icons/check.svg");
  width: 20px;
  height: 20px;
}

i.icon-circle {
  background-image: url("../icons/circle.svg");
  width: 20px;
  height: 20px;
}

i.icon-shield {
  background-image: url("../icons/shield.svg");
  width: 24px;
  height: 24px;
}

i.icon-lightning {
  background-image: url("../icons/lightning.svg");
  width: 24px;
  height: 24px;
}

@media (max-width: 1024px) {
  :root {
    --header-height: 60px;
  }

  .section {
    padding: 60px 0;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .hero-visual .phone-mockup {
    width: 240px;
    height: 480px;
  }

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

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

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

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

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  body {
    font-size: 15px;
  }

  .container {
    padding: 0 15px;
  }

  .section {
    padding: 40px 0;
  }

  .section-title h2 {
    font-size: 24px;
  }

  .section-title {
    margin-bottom: 30px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    height: auto;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu {
    flex-direction: column;
    gap: 5px;
    width: 100%;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu li a {
    padding: 12px 15px;
    width: 100%;
  }

  .nav-menu li a.active::after {
    display: none;
  }

  .nav-actions {
    width: 100%;
    margin-top: 15px;
  }

  .nav-actions .btn {
    width: 100%;
  }

  .hero {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 40px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .hero-content p {
    font-size: 16px;
  }

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

  .hero-stats {
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
  }

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

  .hero-visual {
    order: -1;
  }

  .hero-visual .phone-mockup {
    width: 220px;
    height: 440px;
  }

  .hero-visual .floating-card {
    padding: 12px 16px;
  }

  .hero-visual .floating-card.card-1 {
    left: -10px;
  }

  .hero-visual .floating-card.card-2 {
    right: -10px;
  }

  .showcase-tabs {
    gap: 8px;
  }

  .tab-btn {
    padding: 8px 16px;
    font-size: 14px;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .showcase-item img {
    width: 200px;
    height: 360px;
  }

  .version-item {
    flex-direction: column;
    gap: 15px;
    padding: 20px 0;
  }

  .version-date {
    width: 100%;
  }

  .device-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cta-section h2 {
    font-size: 26px;
  }

  .cta-section p {
    font-size: 16px;
  }

  .cta-downloads {
    flex-direction: column;
    align-items: center;
  }

  .download-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .footer {
    padding: 40px 0 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 24px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .download-btn {
    padding: 12px 20px;
  }

  .download-btn .download-text strong {
    font-size: 13px;
  }

  .download-btn .download-text small {
    font-size: 10px;
  }
}