/* ============================================================
   登录页（参照计量器具数字化管理平台）
   深蓝科技风：渐变底 + 网格 + 玻璃拟态卡片 + 光晕装饰
   ============================================================ */
.login{
  min-height:100vh;display:flex;align-items:stretch;justify-content:flex-end;
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 620px at 12% 18%, rgba(24,86,150,.30), transparent 62%),
    radial-gradient(900px 560px at 82% 88%, rgba(18,140,124,.20), transparent 60%),
    linear-gradient(128deg,#061527 0%,#0a2240 42%,#071a30 70%,#04101f 100%);
}
/* 网格纹理 */
.login::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,180,235,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,235,.055) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(120% 95% at 50% 40%,#000 30%,transparent 100%);
  -webkit-mask-image:radial-gradient(120% 95% at 50% 40%,#000 30%,transparent 100%);
}
/* 底部光晕球 */
.login .orb{position:absolute;border-radius:50%;filter:blur(46px);pointer-events:none}
.login .orb1{width:190px;height:190px;right:31%;bottom:19%;background:rgba(52,168,142,.30)}
.login .orb2{width:230px;height:230px;right:9%;bottom:-11%;background:rgba(28,116,196,.26)}
.login .orb3{width:130px;height:130px;left:8%;bottom:26%;background:rgba(34,140,190,.16)}

/* 左侧标语 */
.login .slogan{
  position:absolute;left:6.2%;top:50%;transform:translateY(-52%);z-index:2;
  color:#dce9f6;
}
.login .slogan li{list-style:none;font-size:40px;line-height:1.62;letter-spacing:.30em;
  font-weight:300;text-shadow:0 2px 18px rgba(0,0,0,.45)}
.login .slogan li:nth-child(1){margin-left:0}
.login .slogan li:nth-child(2){margin-left:2.4em}
.login .slogan li:nth-child(3){margin-left:1.1em}
.login .slogan li:nth-child(4){margin-left:3.1em}

/* 左上角 logo */
.login .brandmark{position:absolute;left:3.4%;top:5.2%;z-index:3;display:flex;align-items:center;gap:11px}
.login .brandmark .bm-logo{width:38px;height:38px}
.login .brandmark .bm-txt b{display:block;color:#eef6ff;font-size:17px;font-weight:600;letter-spacing:.10em}
.login .brandmark .bm-txt span{display:block;color:#7fa5c8;font-size:10px;letter-spacing:.22em;margin-top:2px}

/* 登录卡片 */
.login .panel{
  position:relative;z-index:2;align-self:center;margin-right:6.4%;
  width:392px;padding:38px 40px 34px;border-radius:9px;
  background:linear-gradient(160deg,rgba(255,255,255,.085),rgba(255,255,255,.028));
  border:1px solid rgba(150,200,245,.20);
  box-shadow:0 22px 70px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.10);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.login .panel .welcome{font-size:12.5px;color:#8fb6d9;text-align:center;letter-spacing:.14em}
.login .panel h1{font-size:21px;color:#f2f8ff;text-align:center;font-weight:600;
  letter-spacing:.05em;margin:9px 0 26px;text-shadow:0 2px 12px rgba(0,0,0,.35)}
.login .panel .f{margin-bottom:16px}
.login .panel .f label{color:#a8c6e2;font-size:12.5px;display:block;margin-bottom:6px}
.login .panel .f input{
  width:100%;border:1px solid rgba(140,185,230,.26);background:rgba(4,14,28,.42);
  color:#eef6ff;border-radius:5px;padding:10px 13px;font-size:13.5px;
  transition:.16s;
}
.login .panel .f input::placeholder{color:#6d90b4}
.login .panel .f input:focus{
  outline:none;border-color:#4d9fe8;background:rgba(8,26,48,.62);
  box-shadow:0 0 0 3px rgba(77,159,232,.20);
}
.login .panel .btn-login{
  width:100%;margin-top:24px;padding:11px;border:0;border-radius:5px;cursor:pointer;
  background:linear-gradient(96deg,#2d86dc,#1668bb);color:#fff;font-size:15px;
  font-weight:500;letter-spacing:.30em;text-indent:.30em;
  box-shadow:0 7px 20px rgba(22,104,187,.42);transition:.16s;
}
.login .panel .btn-login:hover{background:linear-gradient(96deg,#3a95ee,#1a72c7);
  box-shadow:0 9px 26px rgba(22,104,187,.55)}
.login .panel .btn-login[disabled]{opacity:.55;cursor:not-allowed}
.login .panel .tips{margin-top:22px;padding-top:16px;border-top:1px solid rgba(150,200,245,.14);
  font-size:11.5px;color:#7ba1c4;line-height:1.85;text-align:center}
.login .panel .tips b{color:#9fc4e4;font-weight:500}
.login .panel .err{margin-top:12px;font-size:12.5px;color:#ff8b8b;text-align:center;min-height:18px}
.login .foot{position:absolute;left:0;right:0;bottom:18px;z-index:2;text-align:center;
  font-size:11px;color:#5d81a4;letter-spacing:.06em}

@media(max-width:900px){
  .login .slogan{display:none}
  .login .panel{margin:0 auto;width:min(392px,92vw)}
  .login .brandmark{left:6%;top:4%}
}