:root {
  --cap-widget-width: 270px;
}
* {
  box-sizing: content-box;
}
body {
  padding: 0;
  margin: 0;
  background-color: #f5f7fa;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  color: #333;
}
.nav {
  display: flex;
  background: rgba(0, 0, 0, 0.7);
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  justify-content: center;
  align-items: center;
  padding: 10px 20px;
}
.nav .logo {
  width: 10rem;
  height: 2rem;
  background: url(../img/logo.svg) no-repeat 100% 100%;
}
.nav h1 {
  color: #fff;
  font-size: 1rem;
  margin-left: 12px;
}
.container {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 40px 20px;
  max-width: 400px;
  text-align: center;
}
.container .icon {
  font-size: 60px;
}
.container .title {
  font-weight: 700;
  font-size: 18px;
  margin: 24px auto 12px;
}
.container .check-btn {
  margin: 50px auto;
  width: 270px;
}
.container .footer {
  padding-top: 20px;
  border-top: 1px solid #eee;
  font-size: 13px;
  color: #666;
  line-height: 1.8;
}
@media (max-width: 600px) {
  .nav h1 {
    font-size: 0.5rem;
  }
}