:root {
  --ink: #17211f;
  --leaf: #1f8f65;
  --mint: #dff7ed;
  --coral: #ff6f61;
  --amber: #f9b44b;
  --line: #dce9e3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, rgba(223, 247, 237, 0.9), #fff 38%);
  color: var(--ink);
  font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  min-height: 100vh;
  width: min(100%, 460px);
  margin: 0 auto;
  padding: 24px 16px 30px;
  display: grid;
  align-content: start;
  gap: 20px;
}

.center {
  text-align: center;
}

.eyebrow {
  margin: 0;
  color: var(--leaf);
  font-size: 14px;
  font-weight: 800;
}

h1 {
  margin: 8px 0 0;
  font-size: 34px;
  line-height: 1.12;
  letter-spacing: 0;
}

p {
  margin: 0;
}

.desc {
  margin-top: 12px;
  color: #5f6d68;
  font-size: 16px;
  line-height: 1.75;
}

.media {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 18px 45px rgba(23, 33, 31, 0.12);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 18px;
  box-shadow: 0 12px 28px rgba(23, 33, 31, 0.06);
}

.grid {
  display: grid;
  gap: 12px;
}

.btn {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: var(--coral);
  color: #fff;
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 900;
  text-align: center;
  cursor: pointer;
}

.btn.secondary {
  border: 1px solid rgba(31, 143, 101, 0.25);
  background: #fff;
  color: var(--leaf);
}

.tip {
  display: none;
  border: 1px solid rgba(249, 180, 75, 0.7);
  border-radius: 8px;
  background: rgba(249, 180, 75, 0.15);
  padding: 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 800;
}

.code {
  margin-top: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.qr {
  width: 176px;
  aspect-ratio: 1;
  display: block;
  margin: 14px auto 0;
  border: 1px solid #eef3f0;
  border-radius: 8px;
}

.small {
  color: #64726d;
  font-size: 13px;
  line-height: 1.7;
}