* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background: #f7f9fb;
  color: #0b1f3b;
}

header {
  background: #0b1f3b;
  padding: 20px 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: auto;
  padding: 0 20px;
}

.logo {
  height: 40px;
}

nav a {
  color: white;
  margin-left: 25px;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  background: linear-gradient(120deg, #0b1f3b, #132d53);
  color: white;
  padding: 60px 20px;
}

.hero .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  max-width: 1200px;
  margin: auto;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

.hero-text .cn {
  font-size: 18px;
  color: #f90;
  margin-bottom: 20px;
}

.features li {
  margin: 10px 0;
  list-style: none;
  display: flex;
  align-items: center;
}

.features li img {
  width: 24px;
  margin-right: 10px;
}

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

.advantages {
  padding: 50px 20px;
  text-align: center;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
}

.card img {
  width: 50px;
  margin-bottom: 10px;
}

.card p {
  font-weight: bold;
}

.app-section {
  background: #fff;
  padding: 60px 20px;
  text-align: center;
}

.app-img {
  max-width: 300px;
  margin-top: 20px;
}

footer {
  background: #0b1f3b;
  color: white;
  text-align: center;
  padding: 20px;
}