* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  color: #17202a;
  background: #f5f7fb;
}

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
  display: grid;
  gap: 16px;
}

.panel {
  background: #fff;
  border: 1px solid #dbe3ef;
  border-radius: 8px;
  padding: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #4b6b8f;
  font-size: 13px;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0 0 12px;
}

.desc {
  margin: 0 0 20px;
  color: #526171;
}

.hint {
  margin: 12px 0 0;
  color: #526171;
  font-size: 14px;
}

.price {
  margin-bottom: 20px;
  font-size: 36px;
  font-weight: 700;
}

label {
  display: grid;
  gap: 6px;
  margin: 12px 0;
  color: #526171;
}

input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #c9d4e2;
  border-radius: 6px;
  font: inherit;
}

select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #c9d4e2;
  border-radius: 6px;
  background: #fff;
  font: inherit;
}

button,
.link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: #0f766e;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

pre {
  min-height: 180px;
  overflow: auto;
  padding: 14px;
  border: 1px solid #dbe3ef;
  border-radius: 6px;
  background: #f8fafc;
  white-space: pre-wrap;
}