/* 登录弹窗：与访客主页共存，不再接管整页。 */
#login-gate { position: fixed; inset: 0; z-index: 9999; display: none; }
#login-gate.show { display: block; }
.login-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 20px; background: rgba(0, 0, 0, .48); animation: fadeIn .16s ease both; }
.login-dialog { width: min(100%, 460px); background: #fff; color: #111; border: 1px solid #e5e5e5; border-radius: 20px; box-shadow: 0 22px 70px rgba(0, 0, 0, .22); overflow: hidden; animation: fadeUp .2s ease both; }
.login-dialog-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 22px 0; }
.login-brand { display: flex; align-items: center; gap: 9px; font-size: 18px; font-weight: 700; letter-spacing: -.02em; }.login-brand img { width: 30px; height: 30px; color: #111; }
.login-close { width: 32px; height: 32px; border-radius: 8px; color: #666; font-size: 24px; line-height: 1; }.login-close:hover { background: #f3f3f3; color: #111; }
.login-dialog-body { padding: 24px 28px 28px; }.login-dialog-title { margin: 0 0 6px; font-size: 24px; letter-spacing: -.04em; }.login-dialog-desc { margin: 0 0 22px; color: #666; font-size: 14px; line-height: 1.55; }
.login-form { display: flex; flex-direction: column; gap: 15px; }.login-form .field { gap: 7px; }.login-form .field > label { color: #333; font-size: 13px; font-weight: 600; }
.login-form .input { height: 46px; padding: 10px 12px; border: 1px solid #d8d8d8; border-radius: 10px; color: #111; background: #fff; }.login-form .input:focus { border-color: #111; box-shadow: 0 0 0 3px rgba(0,0,0,.08); }
.login-code-row { display: flex; gap: 8px; }.login-code-row .input { flex: 1; min-width: 0; letter-spacing: .12em; }.login-code-row .btn { height: 46px; padding: 0 12px; border: 1px solid #d8d8d8; border-radius: 10px; color: #111; }.login-code-row .btn:hover { background: #f5f5f5; }
.login-submit { height: 46px; border-radius: 10px; background: #111; color: #fff; font-weight: 600; }.login-submit:hover { background: #333; }.login-hint { min-height: 18px; margin: -6px 0 0; color: #777; font-size: 12px; }.login-hint.error { color: #b42318; }.login-hint.success { color: #26734d; }.login-disclaimer { margin: 17px 0 0; color: #888; font-size: 11px; line-height: 1.65; text-align: center; }
.login-demo { height: 40px; border: 1px solid #d8d8d8; border-radius: 10px; color: #222; background: #fff; font-weight: 600; }.login-demo:hover { background: #f5f5f5; }.login-demo-note { margin: 0; text-align: center; color: #777; font-size: 11px; line-height: 1.6; }
@media (max-width: 520px) { .login-overlay { padding: 12px; align-items: flex-end; }.login-dialog { border-radius: 16px; }.login-dialog-body { padding: 20px; } }