.sds-auth-form{max-width:420px;margin:30px auto;padding:24px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.sds-auth-form h2{margin:0 0 20px;font-size:22px}
.sds-auth-form p{margin:0 0 14px}
.sds-auth-form label{display:block;font-size:13px;color:#4b5563;margin-bottom:4px}
.sds-auth-form input{width:100%;padding:8px 10px;border:1px solid #d1d5db;border-radius:6px;font-size:14px;box-sizing:border-box}
.sds-auth-form button{padding:8px 14px;border:0;border-radius:6px;background:#2563eb;color:#fff;font-size:14px;cursor:pointer}
.sds-auth-form button:hover{background:#1d4ed8}
.sds-auth-form button:disabled{background:#9ca3af;cursor:not-allowed}
#sds-send-code{width:auto;margin-top:6px;background:#10b981}
#sds-send-code:hover{background:#059669}
.sds-auth-form button[type=submit]{width:100%;padding:10px;font-size:15px}
.sds-msg{margin-top:14px;font-size:13px;min-height:18px}
.sds-msg.ok{color:#059669}
.sds-msg.err{color:#dc2626}
.sds-invites{max-width:560px;margin:30px auto;padding:24px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;font-family:-apple-system,BlinkMacSystemFont,sans-serif}
.sds-invites h3{margin:0 0 12px}
.sds-invite-code{font-size:28px;font-weight:700;letter-spacing:6px;color:#2563eb;text-align:center;padding:14px;background:#f0f9ff;border-radius:8px}
.sds-invites code{background:#f3f4f6;padding:2px 6px;border-radius:4px;font-size:12px}
.sds-invites ul{padding-left:20px}
.sds-invites li{font-size:14px;color:#374151;margin-bottom:6px}