:root{color-scheme:light;--ink:#202925;--muted:#637069;--green:oklch(.400 .087 160);--border:#e2e8e4;--focus:#418561;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f5f7f5;font-synthesis:none}
*{box-sizing:border-box}
body{margin:0;min-height:100svh;display:grid;place-items:center;padding:48px 24px}
.login-shell{width:100%;max-width:420px}
.brand{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:32px;font-size:19px;font-weight:650;line-height:1.4}
.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--green);color:#fff;font-size:23px;font-weight:600}
.brand small{display:block;margin-top:3px;font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.04em}
.login-panel{padding:36px;border:1px solid var(--border);border-radius:14px;background:#fff}
h1{margin:0;font-size:27px;font-weight:650;line-height:1.4;letter-spacing:-.02em}
header p{margin:8px 0 28px;font-size:14px;line-height:1.6;color:var(--muted)}
.field{margin-bottom:20px}
label{display:block;margin-bottom:8px;font-size:14px;line-height:1.5;font-weight:550}
input,button{font:inherit;font-size:15px}
input{width:100%;height:48px;border:1px solid #cbd5ce;border-radius:8px;padding:0 13px;color:var(--ink);background:#fff;transition:border-color .15s}
input::placeholder{color:var(--muted)}
input:hover{border-color:#9baa9f}
input:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.password-field{position:relative}
.password-field input{padding-right:66px}
button{cursor:pointer;touch-action:manipulation}
.password-toggle{position:absolute;right:4px;top:2px;height:44px;min-width:54px;padding:0 10px;border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:13px}
.password-toggle:hover{color:var(--green);background:#edf5ef}
.primary{display:block;width:100%;min-height:48px;margin-top:28px;border:0;border-radius:8px;background:var(--green);color:#fff;font-weight:600;transition:background .15s}
.primary:hover{background:oklch(.345 .075 160)}
.primary:active{background:oklch(.300 .065 160)}
.primary:disabled{cursor:wait;background:#637a6b}
.error{margin:0;padding:12px 14px;border-radius:8px;background:#fff2ef;color:#a2312d;font-size:14px;line-height:1.6}
.error[hidden]{display:none}
.session-note{margin:20px 0 0;text-align:center;color:var(--muted);font-size:12px;line-height:1.6}
@media(max-width:480px){body{padding:32px 20px}.brand{margin-bottom:28px}.login-panel{padding:28px 24px}h1{font-size:25px}input{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}