:root {
  --bg: #f3f5f1;
  --card: #ffffff;
  --ink: #1c241c;
  --muted: #6b756c;
  --line: #d8ddd6;
  --accent: #3d5a3d;
  --accent-soft: #e8efe6;
  --radius: 10px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

.top {
  padding: 1.15rem 1rem 0.75rem;
  background: linear-gradient(180deg, #e4ebe2 0%, var(--bg) 100%);
}

.top h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 650;
}

.top .sub {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.main {
  padding: 0.5rem 1rem 1.5rem;
}

.loading, .empty {
  margin: 0;
  color: var(--muted);
  text-align: center;
  padding: 2rem 0.5rem;
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.wechat {
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--accent);
  word-break: break-all;
  text-align: center;
}

.qr {
  width: 11rem;
  height: 11rem;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
}

.hint {
  margin: 1rem 0.25rem 0;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}