/* 登录页 —— 独立样式，不依赖主工作台 */
:root{
  /* 主题强调色：theme.js 依据系统设置动态覆盖，这里只作兜底 */
  --primary:#2f7d4f; --primary-d:#256140; --primary-rgb:47,125,79;
  --line:#e3e8ee; --text:#1f2733; --muted:#7a8699;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1f2a44 0%,var(--primary-d) 100%)}
.login-wrap{padding:24px}
.login-card{width:400px;max-width:92vw;background:#fff;border-radius:18px;padding:34px 34px 26px;
  box-shadow:0 20px 50px rgba(0,0,0,.28)}
.login-brand{display:flex;align-items:center;gap:13px;margin-bottom:26px}
.login-brand .logo{font-size:40px;line-height:1}
.login-brand h1{font-size:22px;font-weight:700}
.login-brand small{color:var(--muted);font-size:12.5px}
#loginForm{display:flex;flex-direction:column;gap:16px}
#loginForm label{display:flex;flex-direction:column;gap:7px;font-size:13.5px;color:var(--muted)}
#loginForm input{padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .15s}
#loginForm input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(var(--primary-rgb),.12)}
.btn-login{margin-top:6px;padding:13px;background:var(--primary);color:#fff;border:none;
  border-radius:10px;font-size:16px;font-weight:600;letter-spacing:2px;font-family:inherit;
  cursor:pointer;transition:background .15s}
.btn-login:hover{background:var(--primary-d)}
.btn-login:disabled{opacity:.6;cursor:not-allowed}
.login-err{min-height:20px;color:#d9534f;font-size:13px;text-align:center}
.login-tip{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  color:var(--muted);font-size:12.5px;line-height:1.7}
.login-tip b{color:var(--primary)}