.login-page { min-height: 100dvh; display: grid; place-items: center; padding: 24px; background: radial-gradient(ellipse at top left, #e3f1eb, transparent 65%), #f5f7f8; }
.login-card { width: min(420px, 100%); margin: 0; padding: 36px; background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 16px 48px #20312e0b; }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.login-card h1 { margin: 0 0 10px; font-size: 26px; letter-spacing: -.5px; }
.login-description { margin: 0 0 28px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.login-card label { display: block; margin: 18px 0 8px; font-size: 13px; font-weight: 600; }
.login-card input { width: 100%; height: 44px; border: 1px solid var(--control-line); border-radius: 8px; padding: 0 12px; }
.login-card .primary-button { width: 100%; margin-top: 24px; border-radius: 8px; }
.login-error { margin: 16px 0 0; padding: 10px 12px; border-radius: 8px; color: var(--danger); background: var(--danger-soft); font-size: 13px; line-height: 1.6; }
.login-note { margin: 22px 0 0; font-size: 11px; text-align: center; color: var(--muted); }
.feishu-login { display: flex; align-items: center; justify-content: space-between; padding: 15px 18px; background: var(--accent); border-radius: 9px; color: white; font-size: 14px; font-weight: 600; text-decoration: none; }
.feishu-login[hidden] { display: none; }
.login-card code { display: block; overflow-wrap: anywhere; margin: 14px 0 26px; padding: 12px; background: #f1f5f4; border-radius: 8px; font-size: 12px; }
@media (max-width: 480px) { .login-page { padding: 16px; } .login-card { padding: 28px 24px; } }