/* 登录页 · 白色主调(用户 2026-08-14 拍板),版式与 fof123.com 登录卡对齐 */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: #ffffff;
  color: #1f2937;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card {
  width: 360px;
  max-width: calc(100vw - 48px);
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
  padding: 40px 36px 36px;
}
h1 { font-size: 20px; font-weight: 600; text-align: center; letter-spacing: 0.5px; }
.sub { text-align: center; color: #9ca3af; font-size: 12px; margin: 8px 0 26px; }
label { display: block; font-size: 13px; color: #4b5563; margin-bottom: 16px; }
input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 14px;
  color: #111827;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  outline: none;
}
input:focus { border-color: #64748b; box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.12); }
button {
  width: 100%;
  margin-top: 6px;
  padding: 11px 0;
  font-size: 15px;
  letter-spacing: 6px;
  text-indent: 6px;
  color: #ffffff;
  background: #334155;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
button:hover { background: #1f2937; }
.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  font-size: 13px;
  border-radius: 8px;
  padding: 9px 12px;
  margin-bottom: 16px;
  text-align: center;
}