:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "Segoe UI", sans-serif; color: #202327; background: #f6f7f8; font-size: 16px; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: min(100%, 460px); background: #fff; border: 1px solid #d9dee5; border-radius: 14px; padding: 36px; }
.brand { margin: 0 0 30px; font-size: 24px; font-weight: 700; color: #176b5b; }
.brand span { margin-left: 8px; font-size: 16px; font-weight: 400; color: #69707a; }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 12px; }
.intro { margin: 0 0 26px; color: #59616c; line-height: 1.7; }
form { display: grid; gap: 12px; }
label { font-size: 16px; font-weight: 500; }
input:not([type="checkbox"]) { width: 100%; min-width: 0; height: 46px; border: 1px solid #aab4bf; border-radius: 6px; padding: 0 12px; font: inherit; margin-bottom: 8px; }
.remember { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 400; line-height: 1.5; }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: #176b5b; }
button { min-height: 46px; border: 0; border-radius: 6px; background: #176b5b; color: #fff; font: inherit; font-weight: 600; cursor: pointer; }
button:hover { background: #115747; }
button:disabled { opacity: .65; cursor: wait; }
:focus-visible { outline: 3px solid #278b76; outline-offset: 3px; }
.status { font-size: 14px; line-height: 1.6; margin: 0; }
.status:empty { display: none; }
.error { color: #9b3026; }
.footnote { margin: 24px 0 0; text-align: center; color: #59616c; font-size: 14px; }
.back { display: inline-block; margin-bottom: 24px; color: #176b5b; text-underline-offset: 4px; font-size: 14px; }
@media (max-width: 480px) { body { padding: 16px; } .auth-card { padding: 26px 22px; } h1 { font-size: 24px; } }