@charset "utf-8";

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

html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
  background: #0d1b0e;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

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

ul {
  list-style: none;
}

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

.dynamic-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #0d1b0e 0%, #1a3a1c 25%, #0f2410 50%, #163018 75%, #0d1b0e 100%);
  background-size: 400% 400%;
  animation: gradientFlow 15s ease infinite;
}

.dynamic-bg::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 20% 50%, rgba(76, 175, 80, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(129, 199, 132, 0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(76, 175, 80, 0.05) 0%, transparent 50%);
  animation: orbFloat 20s ease-in-out infinite;
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  25% { background-position: 100% 0%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
  100% { background-position: 0% 50%; }
}

@keyframes orbFloat {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

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

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(13, 27, 14, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(76, 175, 80, 0.15);
  transition: background 0.3s;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: #81C784;
  letter-spacing: 1px;
}

.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav-menu a {
  font-size: 15px;
  color: #b8d4b9;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.3s, border-color 0.3s;
}

.nav-menu a:hover {
  color: #4CAF50;
  border-bottom-color: #4CAF50;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
  -webkit-tap-highlight-color: transparent;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #81C784;
  border-radius: 2px;
  transition: all 0.3s;
}

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

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

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

.nav-download-btn {
  display: none;
  padding: 8px 18px;
  background: linear-gradient(135deg, #4CAF50, #81C784);
  border-radius: 24px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

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

.hero {
  padding: 120px 0 80px;
}

.hero .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-content {
  flex: 1;
  max-width: 580px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(76, 175, 80, 0.12);
  border: 1px solid rgba(76, 175, 80, 0.25);
  border-radius: 50px;
  color: #81C784;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-title em {
  font-style: normal;
  color: #4CAF50;
}

.hero-subtitle {
  font-size: 18px;
  color: #8a9e8b;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-download {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
}

.hero-update {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #6a7f6b;
}

.hero-update i {
  display: block;
  width: 16px;
  height: 16px;
  background: rgba(76, 175, 80, 0.15);
  border: 2px solid #4CAF50;
  border-radius: 50%;
  position: relative;
}

.hero-update i::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: #4CAF50;
  border-radius: 50%;
  animation: pulse-update 2s infinite;
}

@keyframes pulse-update {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

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

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: #4CAF50;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: #7a8f7b;
}

.hero-visual {
  flex: 1;
  min-width: 280px;
  display: flex;
  justify-content: flex-end;
}

.hero-phone {
  max-width: 320px;
  width: 100%;
  background: #1a1a1a;
  border-radius: 36px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 24px;
  background: #1a1a1a;
  border-radius: 0 0 20px 20px;
  z-index: 10;
}

.phone-notch::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 6px;
  background: #333;
  border-radius: 3px;
}

.hero-phone-screen {
  width: calc(100% - 20px);
  background: #fff;
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  aspect-ratio: 9/16;
}

.hero-phone-screen .phone-statusbar {
  padding: 10px 24px 6px;
  font-size: 13px;
}

.hero-app-preview {
  flex: 1;
  background: linear-gradient(180deg, #f5f5f5 0%, #fff 100%);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

.hero-app-preview::-webkit-scrollbar {
  display: none;
}

.hero-app-preview {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.preview-header {
  display: flex;
  justify-content: space-around;
  padding: 12px 12px;
  font-size: 15px;
  font-weight: 600;
  color: #333;
  border-bottom: 1px solid #eee;
}

.preview-header span {
  padding: 6px 16px;
  border-radius: 20px;
  transition: background 0.2s;
}

.preview-header span:first-child {
  background: rgba(76, 175, 80, 0.1);
  color: #4CAF50;
}

.preview-banner {
  margin: 12px;
  min-height: 68px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4CAF50 0%, #81C784 50%, #A5D6A7 100%);
  display: flex;
  align-items: center;
  padding: 16px;
  overflow: hidden;
  position: relative;
}

.preview-banner::before {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  right: -20px;
  top: -20px;
}

.banner-content {
  position: relative;
  z-index: 1;
}

.banner-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  font-size: 12px;
  color: #fff;
  margin-bottom: 8px;
}

.banner-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 0 12px 12px;
}

.grid-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.grid-cover {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 10px;
  object-fit: cover;
}

.grid-title {
  font-size: 14px;
  font-weight: 600;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.grid-chapter {
  font-size: 12px;
  color: #999;
}

.phone-home-indicator {
  width: 130px;
  height: 5px;
  background: #ccc;
  border-radius: 3px;
  margin: 12px auto;
}

.btn-download {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  transition: transform 0.25s, box-shadow 0.25s;
  -webkit-tap-highlight-color: transparent;
}

.btn-download:hover {
  transform: translateY(-2px);
}

.btn-android {
  background: #4CAF50;
  color: #fff;
  box-shadow: 0 4px 20px rgba(76, 175, 80, 0.35);
}

.btn-android:hover {
  box-shadow: 0 6px 28px rgba(76, 175, 80, 0.5);
}

.btn-ios {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-ios:hover {
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.35);
}

.btn-download i {
  display: inline-block;
  width: 24px;
  height: 24px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.btn-android i::before {
  content: "";
  display: block;
  width: 24px;
  height: 24px;
  background: url(../images/安卓.svg) no-repeat center / contain;
}

.btn-ios i::before {
  content: "";
  display: block;
  width: 24px;
  height: 24px;
  background: url(../images/苹果.svg) no-repeat center / contain;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.2);
  border-radius: 50px;
  color: #81C784;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: #8a9e8b;
  max-width: 520px;
  margin: 0 auto;
}

.intro-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  flex-wrap: wrap;
}

.intro-text {
  flex: 1;
  min-width: 280px;
}

.intro-text h3 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.intro-text p {
  font-size: 15px;
  color: #8a9e8b;
  line-height: 1.8;
  margin-bottom: 12px;
}

.intro-visual {
  flex: 1;
  min-width: 280px;
  display: flex;
  justify-content: flex-start;
}

.intro-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  max-width: 320px;
}

.card-header {
  text-align: center;
  padding: 30px 20px 20px;
}

.card-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 12px;
  border-radius: 50%;
  object-fit: cover;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.card-line-divider {
  height: 1px;
  background: #eee;
  margin: 0 20px;
}

.card-content {
  padding: 0 20px;
}

.line-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #eee;
  font-size: 16px;
  color: #333;
}

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

.line-name {
  font-weight: 500;
}

.line-status {
  color: #4CAF50;
  font-weight: 600;
  background: rgba(76, 175, 80, 0.1);
  padding: 4px 12px;
  border-radius: 12px;
}

.card-footer {
  margin: 16px 16px 0;
  padding: 16px;
  background: #f8f8f8;
  border-radius: 12px;
}

.card-footer p {
  font-size: 12px;
  color: #666;
  margin: 0;
  text-align: center;
  line-height: 1.5;
}

.card-footer .highlight {
  color: #E53935;
  font-weight: 600;
}

.card-version {
  text-align: center;
  font-size: 12px;
  color: #999;
  padding: 16px 0;
}

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

.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 36px 24px;
  text-align: center;
  transition: transform 0.3s, background 0.3s, border-color 0.3s, box-shadow 0.3s;
  cursor: default;
}

.feature-card:hover {
  transform: translateY(-8px);
  background: rgba(76, 175, 80, 0.08);
  border-color: rgba(76, 175, 80, 0.25);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.feature-card i {
  display: inline-block;
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.feature-card:nth-child(1) i::before {
  content: "";
  display: block;
  width: 56px;
  height: 56px;
  background: url(../icons/feature-speed.svg) no-repeat center / contain;
}

.feature-card:nth-child(2) i::before {
  content: "";
  display: block;
  width: 56px;
  height: 56px;
  background: url(../icons/feature-rich.svg) no-repeat center / contain;
}

.feature-card:nth-child(3) i::before {
  content: "";
  display: block;
  width: 56px;
  height: 56px;
  background: url(../icons/feature-free.svg) no-repeat center / contain;
}

.feature-card:nth-child(4) i::before {
  content: "";
  display: block;
  width: 56px;
  height: 56px;
  background: url(../icons/feature-safe.svg) no-repeat center / contain;
}

.feature-card h4 {
  font-size: 18px;
  font-weight: 600;
  color: #e0e0e0;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: #7a8f7b;
  line-height: 1.6;
}

.screenshots {
  padding: 80px 0;
}

.screenshots-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 10px;
  scrollbar-width: thin;
  scrollbar-color: rgba(76, 175, 80, 0.3) transparent;
}

.screenshots-scroll::-webkit-scrollbar {
  height: 6px;
}

.screenshots-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.screenshots-scroll::-webkit-scrollbar-thumb {
  background: rgba(76, 175, 80, 0.3);
  border-radius: 3px;
}

.screenshot-item {
  flex: 0 0 auto;
  width: 260px;
  scroll-snap-align: start;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:hover {
  border-color: rgba(76, 175, 80, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: #d0d0d0;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  -webkit-tap-highlight-color: transparent;
}

.faq-question i {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.3s;
  position: relative;
}

.faq-question i::before,
.faq-question i::after {
  content: "";
  position: absolute;
  background: #81C784;
  border-radius: 1px;
  transition: transform 0.3s;
}

.faq-question i::before {
  top: 9px;
  left: 0;
  width: 20px;
  height: 2px;
}

.faq-question i::after {
  top: 0;
  left: 9px;
  width: 2px;
  height: 20px;
}

.faq-item.active .faq-question i::after {
  transform: rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 24px 20px;
  color: #8a9e8b;
  font-size: 14px;
  line-height: 1.7;
}

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

.review-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.review-avatar.avatar-green {
  background: linear-gradient(135deg, #4CAF50, #81C784);
}

.review-avatar.avatar-red {
  background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
}

.review-avatar.avatar-teal {
  background: linear-gradient(135deg, #4ECDC4, #7EDDD7);
}

.review-avatar.avatar-purple {
  background: linear-gradient(135deg, #9B59B6, #BB8FCE);
}

.review-avatar.avatar-blue {
  background: linear-gradient(135deg, #3498DB, #5DADE2);
}

.review-avatar.avatar-orange {
  background: linear-gradient(135deg, #F39C12, #F5B041);
}

.review-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.review-name {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

.review-stars {
  font-size: 12px;
  color: #FFD700;
  letter-spacing: 1px;
}

.review-text {
  font-size: 14px;
  color: #8a9e8b;
  line-height: 1.6;
  margin: 0;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 40px 0 30px;
  text-align: center;
}

.footer-info p {
  font-size: 13px;
  color: #6a7a6b;
  line-height: 1.8;
}

.footer-disclaimer {
  margin-top: 20px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-disclaimer p {
  font-size: 12px;
  color: #5a6a5b;
  line-height: 1.7;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 40px;
  width: 44px;
  height: 44px;
  background: rgba(76, 175, 80, 0.2);
  border: 1px solid rgba(76, 175, 80, 0.3);
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.3s;
  z-index: 999;
  -webkit-tap-highlight-color: transparent;
}

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

.back-to-top:hover {
  background: rgba(76, 175, 80, 0.35);
}

.back-to-top i {
  display: block;
  width: 100%;
  height: 100%;
}

.back-to-top i::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: url(../images/置顶_o.svg) no-repeat center / 20px;
  filter: brightness(0) invert(1);
}

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

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

  .hero .container {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
    order: 1;
  }

  .hero-visual {
    order: 2;
    justify-content: center;
  }

  .hero-title {
    font-size: 36px;
  }

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

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

  .section-title {
    font-size: 28px;
  }

  .intro-content {
    flex-direction: column;
    gap: 40px;
  }

  .intro-visual {
    order: 2;
    justify-content: center;
  }

  .intro-text {
    order: 1;
  }

  .intro-card {
    max-width: 300px;
  }

  .line-item {
    padding: 14px 18px;
    font-size: 15px;
  }

  .line-status {
    padding: 3px 10px;
    font-size: 14px;
  }

  .card-footer {
    padding: 14px;
    margin: 14px 14px 0;
  }

  .card-footer p {
    font-size: 12px;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-download-btn {
    display: inline-block;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(13, 27, 14, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 20px 0;
    gap: 0;
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid rgba(76, 175, 80, 0.15);
    z-index: 999;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-menu a {
    display: block;
    padding: 14px 32px;
    font-size: 16px;
    border-bottom: none;
    text-align: center;
  }

  .nav-menu a:hover {
    background: rgba(76, 175, 80, 0.08);
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-phone {
    max-width: 300px;
  }

  .preview-banner {
    min-height: 56px;
  }

  .preview-header {
    font-size: 14px;
    padding: 10px 10px;
  }

  .preview-header span {
    padding: 5px 12px;
  }

  .banner-title {
    font-size: 16px;
  }

  .grid-title {
    font-size: 13px;
  }

  .grid-chapter {
    font-size: 11px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-value {
    font-size: 26px;
  }

  .btn-download {
    padding: 12px 24px;
    font-size: 14px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .screenshot-item {
    width: 220px;
  }

  .intro-text h3 {
    font-size: 22px;
  }

  .intro-card {
    max-width: 280px;
  }

  .card-logo {
    width: 48px;
    height: 48px;
  }

  .card-header {
    padding: 24px 16px 16px;
  }

  .line-item {
    padding: 14px 16px;
    font-size: 15px;
  }

  .card-footer {
    padding: 14px;
    margin: 14px 14px 0;
  }

  .card-footer p {
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

  .hero-download {
    flex-direction: column;
    align-items: center;
    gap: 14px;
  }

  .hero-stats {
    gap: 16px;
  }

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

  .stat-value {
    font-size: 22px;
  }

  .hero-phone {
    max-width: 280px;
  }

  .preview-banner {
    min-height: 48px;
  }

  .banner-title {
    font-size: 15px;
  }

  .preview-header {
    font-size: 13px;
    padding: 8px 8px;
  }

  .preview-header span {
    padding: 4px 10px;
  }

  .grid-title {
    font-size: 12px;
  }

  .grid-chapter {
    font-size: 10px;
  }

  .preview-grid {
    gap: 6px;
    padding: 0 10px 10px;
  }

  .btn-download {
    width: 100%;
    max-width: 260px;
    justify-content: center;
  }

  .section-title {
    font-size: 22px;
  }

  .screenshot-item {
    width: 180px;
  }

  .faq-question {
    font-size: 14px;
    padding: 16px 18px;
  }

  .hero-phone {
    max-width: 240px;
  }

  .intro-card {
    max-width: 240px;
  }

  .card-logo {
    width: 40px;
    height: 40px;
  }

  .card-header {
    padding: 20px 12px 14px;
  }

  .card-title {
    font-size: 16px;
  }

  .line-item {
    padding: 12px 14px;
    font-size: 14px;
  }

  .line-status {
    padding: 3px 10px;
    font-size: 13px;
  }

  .card-footer {
    padding: 12px;
    margin: 12px 12px 0;
  }

  .card-footer p {
    font-size: 10px;
  }

  .card-version {
    font-size: 11px;
    padding: 12px 0;
  }
}