* {
  padding: 0;
  margin: 0;
}
body {
  font-family: Arial, sans-serif;
  padding: 0 0 200px;
  background-color: #fafafa;
}
.navbar-box {
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 0;
}
.navbar-box .main-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.navbar {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.navbar a {
  color: #24292b;
  text-decoration: none;
  font-weight: bold;
  width: 100px;
  text-align: center;
  padding: 15px 0;
}
.navbar .active {
  position: absolute;
  bottom: 0;
  width: 45px;
  height: 5px;
  transform: translateX(-50%);
  transition: 0.5s;
  background-color: #7a64e7;
  border-radius: 3px;
}
.navbar-box .download-btn {
  background-color: #e6e6ff;
  color: #7a64e7;
  font-size: 14px;
  font-weight: bold;
  padding: 8px 16px;
  border-radius: 10px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 5px;
}
.download-btn img {
  width: 18px;
  height: 18px;
}
.app-title {
  font-size: 25px;
  color: #070d0f;
  padding: 35px 0;
  scroll-margin-top: 48px;
}
.main-box {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.content-box {
  padding-top: 50px;
}
.app-logo-img {
  width: 120px;
  height: 120px;
  border-radius: 20px;
  margin-right: 25px;
}
.app-info {
  display: flex;
  align-items: center;
  padding: 35px;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
.app-name {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 13px;
}
.app-description {
  font-size: 16px;
  line-height: 1.6;
}
.about-us {
  padding: 35px;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
.about-us img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 20px;
}
.about-us p {
  font-size: 16px;
  line-height: 1.6;
}
.footer {
  margin-top: 35px;
}
.footer h3 {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 15px;
}
.footer p {
  font-size: 12px;
  color: #070d0f;
  font-weight: 700;
  line-height: 1.6;
}
.footer .footer-p-span {
  margin: 0 15px;
}
.footer .footer-p-text a {
  color: #477bf5;
  text-decoration: none;
}

@media (max-width: 650px) {
  .app-info,
  .about-us {
    padding: 15px;
  }
}

@media (max-width: 575px) {
  .app-info,
  .about-us {
    padding: 15px;
  }
  .app-info {
    flex-direction: column;
  }
  .app-title {
    font-size: 22px;
    padding: 20px 0;
  }
  .app-info .app-name {
    text-align: center;
    margin-top: 20px;
  }
  .footer-p-box {
    display: flex;
    flex-direction: column;
  }
  .footer-p-box .footer-p-span {
    display: none;
  }
  .footer-p-box .footer-p-text {
    margin-top: 5px;
  }
  .app-description {
    font-size: 14px;
  }
  .about-us p {
    font-size: 14px;
  }
  .footer {
    margin-top: 20px;
  }
}