/* ============================================================
   门户 / 登录页
   ============================================================ */
body.theme-plain{background:#eef1f9;min-height:100vh}

.portal{
  min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
}
@media(max-width:940px){.portal{grid-template-columns:minmax(0,1fr)}}

/* ---------- 左侧品牌区 ---------- */
.portal-brand{
  background:var(--grad);color:#fff;padding:56px 60px;position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:center;
}
.portal-brand::after{content:"";position:absolute;right:-130px;top:-140px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.1)}
.portal-brand::before{content:"";position:absolute;left:-90px;bottom:-140px;width:330px;height:330px;border-radius:50%;background:rgba(255,255,255,.07)}
.portal-brand>*{position:relative;z-index:1}
.pb-logo{display:flex;align-items:center;gap:13px;margin-bottom:34px}
.pb-logo .mk{
  width:54px;height:54px;border-radius:17px;background:rgba(255,255,255,.2);border:1.5px solid rgba(255,255,255,.34);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.pb-logo b{font-size:24px;font-weight:820;letter-spacing:-.02em;display:block;line-height:1.2}
.pb-logo i{font-style:normal;font-size:12.6px;color:rgba(255,255,255,.78);letter-spacing:.06em}

.pb-title{font-size:38px;font-weight:830;line-height:1.24;letter-spacing:-.02em;margin-bottom:14px}
.pb-title em{font-style:normal;background:linear-gradient(120deg,#fff,#e9d5ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.pb-desc{font-size:14.6px;color:rgba(255,255,255,.84);max-width:470px;line-height:1.8}

.pb-feats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:34px;max-width:520px}
.pb-feat{
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:14px 15px;
  backdrop-filter:blur(6px);
}
.pb-feat .fi{width:34px;height:34px;border-radius:11px;background:rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;margin-bottom:9px}
.pb-feat b{font-size:13.6px;font-weight:750;display:block}
.pb-feat small{font-size:11.9px;color:rgba(255,255,255,.76);line-height:1.55;display:block;margin-top:2px}

/* ---------- 右侧登录区 ---------- */
.portal-panel{
  display:flex;align-items:center;justify-content:center;padding:40px 32px;
}
.login-card{
  width:100%;max-width:412px;background:#fff;border-radius:26px;padding:34px 32px 28px;
  box-shadow:0 24px 60px rgba(15,23,42,.14);border:1px solid var(--line);
}
.login-card h1{font-size:23px;font-weight:820;letter-spacing:-.02em}
.login-card .lc-sub{font-size:13.2px;color:var(--muted);margin:6px 0 22px}

.login-tabs{display:flex;gap:6px;background:var(--line-2);padding:5px;border-radius:14px;margin-bottom:20px}
.login-tabs button{
  flex:1;border:0;background:transparent;padding:9px 8px;border-radius:10px;cursor:pointer;
  font-weight:680;color:var(--muted);font-size:13.6px;transition:.16s;display:flex;align-items:center;justify-content:center;gap:6px;
}
.login-tabs button.on{background:#fff;color:var(--brand);box-shadow:var(--sh-1)}
.login-tabs button .ico{color:currentColor}

.login-field{margin-bottom:14px;position:relative}
.login-field>span{display:block;font-size:12.7px;font-weight:660;color:var(--ink-2);margin-bottom:6px}
.login-field .ico{position:absolute;left:13px;bottom:12px;color:var(--muted-2)}
.login-field input{
  width:100%;padding:11px 14px 11px 40px;border:1px solid var(--line);border-radius:13px;
  background:#fbfcfe;outline:none;font-size:14.5px;transition:.16s;
}
.login-field input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(79,70,229,.13)}

.login-err{
  background:var(--bad-soft);border:1px solid var(--bad-line);color:#b91c1c;
  border-radius:12px;padding:10px 13px;font-size:13.1px;margin-bottom:14px;display:flex;gap:8px;align-items:flex-start;
}
.login-ok{
  background:var(--ok-soft);border:1px solid var(--ok-line);color:#047857;
  border-radius:12px;padding:10px 13px;font-size:13.1px;margin-bottom:14px;
}
.login-hint{
  margin-top:18px;padding:12px 14px;background:var(--grad-soft);border:1px solid var(--brand-line);
  border-radius:13px;font-size:12.3px;color:#4b4a76;line-height:1.75;
}
.login-hint code{background:#fff;border:1px solid var(--brand-line);border-radius:6px;padding:1px 6px;font-size:12px;color:var(--brand)}

.p-foot{margin-top:22px;text-align:center;font-size:12px;color:var(--muted-2)}

@media(max-width:940px){
  .portal-brand{padding:34px 26px 30px;border-radius:0 0 30px 30px}
  .pb-title{font-size:27px}
  .pb-desc{font-size:13.4px}
  .pb-feats{margin-top:22px;grid-template-columns:repeat(2,minmax(0,1fr))}
  .portal-panel{padding:24px 18px 40px;margin-top:-16px}
  .login-card{padding:26px 22px 22px;border-radius:22px}
}
@media(max-width:520px){
  .pb-feats{grid-template-columns:minmax(0,1fr)}
  .pb-feat:nth-child(n+4){display:none}
}