:root{--nav:#12251d;--green:#1e5a3f;--lime:#d4f268;--ink:#162019;--muted:#6a746e;--line:#dfe5e1;--paper:#f3f5f2}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink)}body{min-height:100vh;background:var(--paper)}.login-shell{min-height:100vh;display:grid;grid-template-columns:minmax(360px,.9fr) minmax(520px,1.1fr)}.brand-panel{position:relative;overflow:hidden;padding:9vh 9vw;background:radial-gradient(circle at 80% 20%,#2a6a4a 0,transparent 32%),linear-gradient(145deg,#173829,var(--nav) 70%);color:#fff;display:flex;flex-direction:column;justify-content:center}.brand-panel:after{content:"";position:absolute;width:480px;height:480px;border:1px solid #d4f2682b;border-radius:50%;right:-230px;bottom:-190px;box-shadow:0 0 0 70px #d4f2680d,0 0 0 140px #d4f26808}.brand-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:16px;background:var(--lime);color:#173525;font-weight:900;font-size:29px;box-shadow:0 14px 35px #07150d66}.eyebrow{margin:32px 0 8px;color:#a8bcb0;font-size:12px;letter-spacing:.22em}.brand-panel h1{margin:0;font-size:64px;line-height:1;letter-spacing:.08em}.subtitle{margin:14px 0 0;color:#e5eee8;font-size:22px;letter-spacing:.08em}.brand-rule{width:54px;height:3px;background:var(--lime);margin:34px 0 20px}.brand-copy{max-width:360px;color:#9fb3a7;line-height:1.8;font-size:14px}.login-panel{display:grid;place-items:center;padding:48px;background:linear-gradient(150deg,#fff,#eef3ef)}.login-card{width:min(440px,100%);padding:42px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 70px #183a2820}.login-card header{display:flex;gap:14px;align-items:flex-start;margin-bottom:33px}.secure-dot{width:12px;height:12px;margin-top:9px;border-radius:50%;background:#45a16d;box-shadow:0 0 0 6px #e1f1e7}.login-card h2{font-size:27px;margin:0}.login-card header p{margin:7px 0 0;color:var(--muted);font-size:14px}.login-card label{display:block;margin-top:20px}.login-card label>span{display:block;margin-bottom:8px;color:#445049;font-size:13px;font-weight:700}.login-card input{width:100%;height:50px;padding:0 14px;border:1px solid #d4dcd6;border-radius:10px;outline:none;background:#fbfcfb;font-size:16px;transition:.15s}.login-card input:focus{border-color:#4c8a68;box-shadow:0 0 0 4px #deeee4;background:#fff}.password-field{position:relative}.password-field input{padding-right:66px}.password-field button{position:absolute;right:8px;top:8px;height:34px;padding:0 11px;border:0;border-radius:7px;background:#edf4ef;color:#285d43;cursor:pointer}.submit{width:100%;height:50px;margin-top:26px;border:0;border-radius:10px;background:var(--green);color:#fff;font-size:16px;font-weight:800;cursor:pointer;box-shadow:0 10px 24px #1e5a3f35}.submit:hover{background:#174b34}.submit:disabled{opacity:.65;cursor:wait}.error{margin:17px 0 -8px;padding:11px 13px;border-radius:8px;background:#fff1ef;color:#b42318;font-size:13px}.privacy{text-align:center;color:#849088;font-size:12px;margin:18px 0 0}@media(max-width:820px){.login-shell{grid-template-columns:1fr}.brand-panel{min-height:260px;padding:48px 34px}.brand-panel h1{font-size:44px}.eyebrow{margin-top:22px}.brand-rule,.brand-copy{display:none}.login-panel{padding:26px 18px 50px}.login-card{padding:30px 24px;margin-top:-38px;position:relative;z-index:2}}@media(max-width:480px){.brand-panel{min-height:230px}.subtitle{font-size:17px}.login-card h2{font-size:23px}}

/* 登录页整体视觉优化 */
html { background: #f5f7f4; }
body { letter-spacing: .005em; }
.brand-panel {
  background:
    radial-gradient(circle at 78% 18%,rgba(77,142,102,.55),transparent 30%),
    radial-gradient(circle at 18% 88%,rgba(216,237,114,.08),transparent 24%),
    linear-gradient(145deg,#173f2e,#0d291d 72%);
}
.brand-panel:after { border-color: rgba(216,237,114,.14); box-shadow: 0 0 0 70px rgba(216,237,114,.035),0 0 0 140px rgba(216,237,114,.018); }
.brand-mark { background: linear-gradient(145deg,#e3f48b,#cce85a); box-shadow: 0 18px 42px rgba(4,20,11,.38),inset 0 0 0 1px rgba(255,255,255,.45); }
.brand-panel h1 { letter-spacing: .1em; text-shadow: 0 4px 24px rgba(0,0,0,.16); }
.brand-copy { color: #b4c7bc; }
.login-panel { background: radial-gradient(circle at 50% 10%,#fff 0,#f3f7f4 58%,#edf3ef 100%); }
.login-card {
  border-color: #d8e2db;
  border-radius: 22px;
  box-shadow: 0 28px 80px rgba(20,59,38,.13);
}
.login-card h2 { color: #173d2a; letter-spacing: -.025em; }
.login-card input { border-color: #d3ded6; border-radius: 11px; background: #fcfdfc; }
.login-card input:hover { border-color: #b7c9bd; }
.login-card input:focus { border-color: #38805a; box-shadow: 0 0 0 4px rgba(56,128,90,.12); }
.password-field button { border: 1px solid #d8e5dc; border-radius: 8px; background: #f0f6f2; font-weight: 650; }
.submit { border-radius: 11px; background: linear-gradient(180deg,#216e48,#175e3a); box-shadow: 0 12px 28px rgba(23,94,58,.23); transition: transform .16s ease,box-shadow .16s ease,background .16s ease; }
.submit:hover { transform: translateY(-1px); background: linear-gradient(180deg,#287952,#196641); box-shadow: 0 15px 32px rgba(23,94,58,.27); }
.submit:active { transform: translateY(0); }
button:focus-visible,input:focus-visible { outline: 3px solid rgba(35,116,73,.18); outline-offset: 2px; }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { transition-duration:.01ms!important; animation-duration:.01ms!important; } }