:root{
  --paper:#F6F4EE;
  --surface:#FFFFFF;
  --ink:#202622;
  --ink-2:#4E5751;
  --muted:#858D87;
  --line:#E3DFD4;
  --green:#1F5B4C;
  --green-2:#17493D;
  --danger:#B4473F;
  --danger-soft:#FBEDEA;
  --shadow:0 24px 60px rgba(28,42,36,.11), 0 3px 10px rgba(28,42,36,.05);
}
*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;min-height:100dvh;background:var(--paper);color:var(--ink);
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
h1,p{margin:0}
svg{display:block}

body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 460px at 50% -140px, rgba(31,91,76,.10), transparent 70%),
    radial-gradient(600px 420px at 100% 100%, rgba(178,122,46,.06), transparent 70%);
}
.login-page{
  position:relative;z-index:1;
  min-height:100dvh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:96px 18px calc(28px + env(safe-area-inset-bottom));
}
.top-brand{
  position:absolute;top:calc(24px + env(safe-area-inset-top));left:clamp(20px,4vw,42px);
  display:flex;align-items:center;gap:10px;
}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--green);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:19px;flex:none;
  box-shadow:0 7px 16px rgba(31,91,76,.20);
}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.2px}

.login-card{
  width:100%;max-width:390px;
  background:var(--surface);
  border:1px solid rgba(227,223,212,.8);
  border-radius:24px;
  padding:34px 32px 26px;
  box-shadow:var(--shadow);
}
.card-head{margin-bottom:28px}
.card-head h1{font-size:28px;line-height:1.25;letter-spacing:-.8px;font-weight:750}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;font-weight:650;color:var(--ink-2);margin-bottom:7px;letter-spacing:.2px}
.field input{
  width:100%;height:50px;border:1px solid var(--line);border-radius:12px;
  background:#FCFBF8;padding:0 14px;font-size:16px;outline:none;
  transition:border-color .16s,box-shadow .16s,background .16s;
}
.field input::placeholder{color:#B1B6B1}
.field input:focus{
  border-color:var(--green);background:#fff;
  box-shadow:0 0 0 3px rgba(31,91,76,.10);
}
.password-wrap{position:relative}
.password-wrap input{padding-right:58px}
.toggle-pw{
  position:absolute;right:7px;top:7px;height:36px;padding:0 9px;
  border-radius:8px;color:var(--muted);font-size:12px;font-weight:600;
}
.toggle-pw:hover{background:var(--paper);color:var(--ink)}
.form-msg{
  background:var(--danger-soft);border:1px solid #F0D2CD;color:var(--danger);
  border-radius:10px;padding:9px 11px;font-size:12.5px;line-height:1.5;margin:2px 0 14px;
}
.form-msg.info{background:#E5F0EB;border-color:#D2E5DC;color:var(--green)}
.submit{
  width:100%;height:52px;border-radius:13px;
  background:var(--green);color:#fff;font-size:15px;font-weight:700;letter-spacing:.2px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 8px 20px rgba(31,91,76,.20);
  transition:background .16s,transform .12s,opacity .16s;
}
.submit svg{width:19px;height:19px;transition:transform .16s}
.submit:hover{background:var(--green-2)}
.submit:hover svg{transform:translateX(3px)}
.submit:active{transform:scale(.99)}
.submit:disabled{opacity:.65;cursor:not-allowed;transform:none}
.submit .spinner{
  width:17px;height:17px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;
  border-radius:50%;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:480px){
  .login-page{padding:82px 14px calc(24px + env(safe-area-inset-bottom))}
  .top-brand{top:calc(18px + env(safe-area-inset-top));left:18px}
  .brand-mark{width:37px;height:37px;border-radius:11px;font-size:18px}
  .brand-name{font-size:15px}
  .login-card{padding:27px 20px 22px;border-radius:20px}
  .card-head h1{font-size:25px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}