/* ============================================================
   登录页（管理后台 / 学员端共用）
   ============================================================ */

/* ---------- 登录页 ---------- */
.login-page{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:var(--surface)}
.login-brand{
  position:relative;overflow:hidden;padding:56px;color:#fff;
  display:flex;flex-direction:column;justify-content:space-between;
  background:linear-gradient(150deg,#0B1B2D 0%,#0E2A4C 52%,#123E6E 100%);
}
.login-brand::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(90% 90% at 20% 10%,#000,transparent 78%);
}
.login-brand::after{
  content:"";position:absolute;width:600px;height:600px;right:-260px;bottom:-300px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.5),transparent 62%);filter:blur(30px);
}
.login-brand > *{position:relative;z-index:1}
.login-logo{display:flex;align-items:center;gap:11px}
.login-logo .side-mark{width:40px;height:40px}
.login-logo b{font-size:15px;display:block}
.login-logo span{font-size:10.5px;color:rgba(255,255,255,.4);letter-spacing:.1em}
.login-copy h1{font-size:34px;line-height:1.24;letter-spacing:-.035em;font-weight:800;max-width:440px}
.login-copy p{font-size:13.5px;color:rgba(255,255,255,.55);line-height:1.85;margin-top:16px;max-width:400px}
.login-feats{display:flex;flex-direction:column;gap:12px;margin-top:34px}
.login-feat{display:flex;align-items:center;gap:11px;font-size:12.5px;color:rgba(255,255,255,.72)}
.login-feat .fi{
  width:28px;height:28px;border-radius:8px;display:grid;place-items:center;flex:none;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.1);color:#8FB6FF;
}
.login-feat .fi .ico{width:15px;height:15px}
.login-foot{font-size:11px;color:rgba(255,255,255,.3);line-height:1.8}
.login-foot .copy{display:inline-block;margin-top:8px;font-size:11px;color:rgba(255,255,255,.42);letter-spacing:.02em}

.login-form-wrap{display:flex;align-items:center;justify-content:center;padding:40px}
.login-form{width:100%;max-width:368px}
.login-form h2{font-size:23px;letter-spacing:-.025em}
.login-form .lead{font-size:13px;color:var(--text-2);margin-top:7px;margin-bottom:28px}
.login-form .field{margin-bottom:15px}
.login-form .input{height:44px;border-radius:11px}
.login-err{
  display:none;margin-bottom:14px;padding:10px 13px;border-radius:9px;font-size:12.5px;
  background:var(--danger-50);border:1px solid #F6CBCB;color:#9B1C20;
}
.login-err.show{display:block;animation:pageIn .18s}
.login-form .btn.lg{margin-top:8px}
.login-tip{margin-top:22px;font-size:11.5px;color:var(--text-3);line-height:1.75;padding-top:18px;border-top:1px solid var(--line)}
.login-tip code{font-family:var(--mono);background:var(--surface-3);padding:1px 5px;border-radius:4px;color:var(--text-2)}

@media (max-width:900px){
  .login-page{grid-template-columns:1fr}
  .login-brand{display:none}
}


/* ---------- 学员登录补充 ---------- */
.login-form .input{font-size:14px}
.login-form .input::placeholder{color:var(--text-3)}
.pwd-wrap{position:relative}
.pwd-wrap .input{padding-right:50px}
.pwd-eye{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border:0;background:none;border-radius:8px;
  color:var(--text-3);cursor:pointer;display:grid;place-items:center;
}
.pwd-eye:hover{background:var(--surface-3);color:var(--text-2)}
.pwd-eye .ico{width:16px;height:16px}
.login-meta{
  display:flex;align-items:center;gap:10px;margin:-2px 0 18px;
  font-size:11.5px;color:var(--text-3);
}
.login-meta .spacer{flex:1}
.login-form .btn.lg{height:46px;font-size:14px}
.login-alt{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:11.5px;color:var(--text-3);line-height:1.85;
}
.login-alt b{color:var(--text-2);font-weight:600}
.login-brand .login-badge{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:18px;
  padding:5px 11px;border-radius:99px;font-size:11.5px;font-weight:600;
  background:rgba(0,181,137,.14);border:1px solid rgba(0,181,137,.28);color:#5BE7BE;
}
.login-brand .login-badge i{width:5px;height:5px;border-radius:50%;background:#00B589}
.login-sess-preview{display:flex;flex-direction:column;gap:9px;margin-top:30px}
.login-sess-preview .row{
  display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  font-size:12px;color:rgba(255,255,255,.72);
}
.login-sess-preview .row .dot{width:6px;height:6px;border-radius:50%;background:#00B589;flex:none}
.login-sess-preview .row .dot.blue{background:#4C86FF}
.login-sess-preview .row .dot.gray{background:rgba(255,255,255,.3)}
.login-sess-preview .row .tm{margin-left:auto;color:rgba(255,255,255,.4);font-family:var(--mono);font-size:11px}