:root {
  font-family: "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #3B2E20;
  background: #FFF9E6;
}
body, html {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: #FFF9E6;
}
.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px;
}
.shell {
  background: #FFF6D6;
  border: 1px solid #D8B057;
  border-left-width: 10px;
  border-left-color: #C08A2A;
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  padding: 30px;
}
.hidden {
  display: none;
}
.tag {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid #B38A40;
  border-radius: 999px;
  color: #8B4513;
  font-size: 14px;
  margin-bottom: 24px;
}
h1, h2 {
  margin: 0 0 18px 0;
  color: #8B0000;
  line-height: 1.2;
}
.lead {
  color: #4B3925;
  line-height: 1.8;
  font-size: 18px;
  margin-bottom: 32px;
}
.progress {
  color: #8B4513;
  font-size: 16px;
  margin-bottom: 18px;
}
.question-box {
  background: #FFF3D1;
  border: 1px solid #D8B057;
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 26px;
}
.question {
  font-size: 22px;
  line-height: 1.8;
}
.options {
  display: grid;
  gap: 14px;
}
.option-btn, .button {
  border-radius: 12px;
  padding: 18px 20px;
  border: 1px solid transparent;
  text-align: center;
  cursor: pointer;
  transition: all 0.16s ease;
  font-size: 18px;
}
.option-btn {
  background: #FFF6D6;
  border-color: #D8B057;
  color: #3B2E20;
}
.option-btn:hover {
  background: #F5E4B8;
}
.button {
  background: #C68F24;
  color: #FFF;
  font-weight: 700;
}
.button.secondary {
  background: #F2D18C;
  color: #3B2E20;
}
.button.pay {
  background: #A22E1A;
}
.button:hover {
  opacity: 0.95;
}
.card {
  background: #FFF8E0;
  border: 1px solid #D8B057;
  border-radius: 14px;
  padding: 22px;
  margin-bottom: 22px;
}
.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  color: #3B2E20;
}
.row strong {
  font-size: 18px;
  color: #8B0000;
}
.text {
  font-size: 17px;
  line-height: 1.8;
  color: #4A3927;
}
.note {
  margin-top: 18px;
  color: #7B5F3D;
  line-height: 1.7;
  font-size: 15px;
}
@media (max-width: 720px) {
  .page {
    padding: 18px;
  }
  .shell {
    padding: 22px;
  }
}