/* login 2026.29 — 干净圆角输入，手机无双层不规则框 */
*{margin:0;padding:0;box-sizing:border-box}
body.xff-login-body{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  font-family:"Nunito","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  color:#0f172a;overflow-x:hidden;position:relative;
  background:
    radial-gradient(900px 520px at 8% 12%,rgba(56,189,248,.45),transparent 55%),
    radial-gradient(820px 480px at 92% 18%,rgba(167,139,250,.42),transparent 52%),
    radial-gradient(700px 420px at 50% 100%,rgba(52,211,153,.28),transparent 55%),
    linear-gradient(135deg,#dbeafe 0%,#e0e7ff 40%,#f5f3ff 100%);
  background-size:140% 140%,140% 140%,140% 140%,160% 160%;
  animation:xffBgDrift 16s ease-in-out infinite alternate;
}
@keyframes xffBgDrift{
  from{background-position:0% 30%,100% 20%,50% 100%,0% 40%}
  to{background-position:30% 60%,70% 50%,40% 80%,100% 60%}
}
body.xff-login-body::before,
body.xff-login-body::after{
  content:"";position:fixed;border-radius:50%;pointer-events:none;z-index:0;
  filter:blur(2px);opacity:.55;
}
body.xff-login-body::before{
  width:220px;height:220px;left:8%;top:18%;
  background:radial-gradient(circle,rgba(14,165,233,.55),transparent 70%);
  animation:xffOrbFloat 9s ease-in-out infinite alternate;
}
body.xff-login-body::after{
  width:280px;height:280px;right:6%;bottom:12%;
  background:radial-gradient(circle,rgba(124,58,237,.42),transparent 70%);
  animation:xffOrbFloat 11s ease-in-out infinite alternate-reverse;
}
@keyframes xffOrbFloat{
  from{transform:translate(0,0) scale(1)}
  to{transform:translate(18px,-22px) scale(1.08)}
}
.xff-orb{display:none!important}
.xff-login-wrap{width:100%;max-width:420px;position:relative;z-index:1}
.xff-login-card{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.95);border-radius:26px;padding:36px 28px 22px;
  box-shadow:0 24px 56px rgba(37,99,235,.16);
  position:relative;overflow:hidden;
  animation:xffCardIn .5s cubic-bezier(.22,1,.36,1) both;
}
@keyframes xffCardIn{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
.xff-login-card::before{
  content:"";position:absolute;inset:0 auto auto 0;width:100%;height:4px;
  background:linear-gradient(90deg,#06b6d4,#2563eb,#7c3aed,#ec4899,#06b6d4);
  background-size:300% 100%;animation:xffBar 5s linear infinite;
}
@keyframes xffBar{to{background-position:300% 0}}
/* 装饰光斑挪到角落，避免压在输入框上形成「不规则外框」 */
.xff-login-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:100px;height:100px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.16),transparent 70%);pointer-events:none;z-index:0;
}
.xff-brand{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px;position:relative;z-index:1}
.xff-logo{
  width:58px;height:58px;border-radius:18px;overflow:hidden;border:2px solid #fff;
  box-shadow:0 12px 26px rgba(37,99,235,.22);flex-shrink:0;
}
.xff-logo img{width:100%;height:100%;object-fit:cover}
.xff-brand-name{
  font-size:18px;font-weight:800;line-height:1.35;
  background:linear-gradient(90deg,#0ea5e9,#2563eb,#7c3aed);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.xff-form-group{
  position:relative;margin-bottom:14px;z-index:1;
  background:transparent;border:0;box-shadow:none;outline:none;
}
.xff-form-control{
  width:100%;padding:14px 16px 14px 46px;
  border:1px solid #dbe3f0;border-radius:14px;
  font-size:16px;line-height:1.4;color:#0f172a;
  background:#fff;outline:none;appearance:none;-webkit-appearance:none;
  box-shadow:none;transform:none;
  transition:border-color .2s, box-shadow .2s;
}
.xff-form-control:focus{
  border-color:#2563eb;
  box-shadow:0 0 0 3px rgba(37,99,235,.12);
  transform:none;
}
.xff-form-control::placeholder{color:#94a3b8}
/* 浏览器自动填充：避免黄底+圆角错位形成双框 */
.xff-form-control:-webkit-autofill,
.xff-form-control:-webkit-autofill:hover,
.xff-form-control:-webkit-autofill:focus{
  -webkit-box-shadow:0 0 0 1000px #fff inset !important;
  box-shadow:0 0 0 1000px #fff inset !important;
  -webkit-text-fill-color:#0f172a !important;
  border:1px solid #dbe3f0 !important;
  transition:background-color 99999s ease-out;
}
.xff-form-icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#94a3b8;z-index:2;pointer-events:none}
.xff-btn{
  width:100%;border:0;border-radius:999px;padding:13px;color:#fff;font-size:16px;font-weight:800;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#06b6d4,#2563eb 45%,#7c3aed 85%,#ec4899);background-size:220% 220%;
  transition:transform .18s ease, box-shadow .18s ease, background-position .4s ease;
  box-shadow:0 12px 26px rgba(37,99,235,.28);
}
.xff-btn:hover{transform:translateY(-2px);background-position:100% 50%;box-shadow:0 16px 32px rgba(124,58,237,.32)}
.xff-btn:active{transform:translateY(0) scale(.98)}
.xff-btn:disabled{opacity:.65;cursor:not-allowed;transform:none}
.xff-spin{width:16px;height:16px;border:2px solid rgba(255,255,255,.85);border-top-color:transparent;border-radius:50%;animation:spin .8s linear infinite;display:none}
.xff-btn.loading .xff-spin{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.xff-error{display:none;margin-bottom:12px;padding:10px 12px;border-radius:12px;font-size:14px;color:#be123c;background:rgba(244,63,94,.08);border-left:4px solid #f43f5e}
.xff-copy{text-align:center;margin-top:16px;color:#64748b;font-size:12px;line-height:1.7}
.xff-kefu{
  display:flex;align-items:center;justify-content:center;gap:8px;margin-top:12px;
  width:100%;padding:11px;border-radius:999px;text-decoration:none;font-weight:800;font-size:14px;
  color:#0369a1;background:rgba(14,165,233,.1);border:1px solid rgba(14,165,233,.22);
  transition:transform .18s ease, background .18s ease, box-shadow .18s;
}
.xff-kefu:hover{transform:translateY(-1px);background:rgba(14,165,233,.16);box-shadow:0 8px 18px rgba(14,165,233,.15)}
@media screen and (max-width:992px){
  html,body.xff-login-body{
    height:auto!important;min-height:100%!important;overflow-x:hidden!important;overflow-y:auto!important;
    align-items:flex-start!important;padding:8vh 16px 32px!important;-webkit-overflow-scrolling:touch;
    animation:none;
    background:linear-gradient(160deg,#dbeafe 0%,#eef2ff 45%,#f5f3ff 100%);
  }
  body.xff-login-body::before,body.xff-login-body::after{opacity:.22;animation:none}
  .xff-login-card{
    padding:24px 16px 16px;border-radius:20px;
    background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none;
    box-shadow:0 12px 32px rgba(15,23,42,.08);
  }
  .xff-login-card::after{display:none}
  .xff-brand-name{font-size:16px}
  .xff-form-group{margin-bottom:12px}
  .xff-form-control{
    font-size:16px!important;
    border-radius:12px!important;
    border:1px solid #e2e8f0!important;
    background:#fff!important;
    box-shadow:none!important;
    transform:none!important;
  }
  .xff-form-control:focus{
    border-color:#2563eb!important;
    box-shadow:0 0 0 3px rgba(37,99,235,.12)!important;
    transform:none!important;
  }
}
@media (prefers-reduced-motion:reduce){
  body.xff-login-body,body.xff-login-body::before,body.xff-login-body::after,
  .xff-login-card,.xff-login-card::before,.xff-btn{animation:none!important}
}