* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #fff;
  color: #222;
}

a,
a:visited,
a:hover,
a:active {
  color: inherit !important;
  text-decoration: underline !important;
}
.wrap {
  margin: 0 auto;
  background: #fff;
  box-shadow: 0 6px 28px rgba(0,0,0,.08);
}
h1 { margin: 0 0 14px 0; line-height: 1.3; }
p { line-height: 1.6; }
input[type=email], input[type=number], input[type=text] {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #d9dce3;
  border-radius: 12px;
  font-size: 16px;
}
button {
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-radius: 12px;
  background: #333;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}
.copy-btn {
  width: auto;
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 10px;
  background: #333;
  color: #fff;
  border: 0;
  cursor: pointer;
}
.addr-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.addr-text { word-break: break-all; }
.top-actions { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.top-actions a {
  display: block;
  text-align: center;
  padding: 10px 12px;
  border: 1px solid #cfcfcf;
  border-radius: 10px;
  color: #222;
  background: #fff;
}
.msg {
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f3f4f6;
  color: #333;
  border: 1px solid #d1d5db;
}
.err {
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f3f4f6;
  color: #333;
  border: 1px solid #d1d5db;
}
.sub { color: #555; font-size: 14px; }
.topbar { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 18px; }
.topbar a { color: #222; font-size: 14px; }
.tpbox { margin-top: 18px; }
.coin-grid-mobile { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.coin-grid-pc { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
.coin-item { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border: 0; border-radius: 0; }
.footer-note { margin-top: 18px; color: #666; font-size: 13px; }
@media (max-width: 640px) {
  .topbar { flex-direction: column; align-items: stretch; }
  .top-actions { width: 100%; }
}