:root {
  --bg: #f2f4f8;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --green: #22c55e;
  --green-dark: #16a34a;
  --border: #e5e7eb;
  --shadow: 0 18px 45px rgba(0,0,0,.10);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  background: var(--bg);
  color: var(--text);
}

.wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.card {
  width: min(520px, 100%);
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 26px 26px 18px;
}

.hd {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}
.badge {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: rgba(34,197,94,.15);
  border: 1px solid rgba(34,197,94,.35);
  display: grid;
  place-items: center;
}
.badge::after {
  content: "";
  width: 9px; height: 5px;
  border-left: 2px solid var(--green-dark);
  border-bottom: 2px solid var(--green-dark);
  transform: rotate(-45deg);
  margin-top: -1px;
}

h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 700;
}
p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 14px;
}
ol {
  margin: 12px 0 0 18px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}
.hr {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.btn {
  width: 100%;
  border: 0;
  border-radius: 999px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  color: white;
  background: var(--green);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 10px 25px rgba(34,197,94,.25);
}
.btn:hover { background: var(--green-dark); }
.btn:disabled {
  opacity: .55;
  cursor: not-allowed;
  box-shadow: none;
}

.dot {
  width: 14px; height: 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(255,255,255,.65);
}

.small {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}

.field {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}
input[type="text"], input[type="password"], input[type="url"] {
  width: 100%;
  padding: 12px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  outline: none;
  font-size: 14px;
}
input:focus { border-color: rgba(34,197,94,.6); box-shadow: 0 0 0 4px rgba(34,197,94,.12); }

.alert {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
  font-size: 13px;
}