/* 登录/注册模态 + 顶栏账户控件(暗色,与地图一致) */
.auth-btn{
  height:40px;padding:0 15px;border-radius:11px;border:1px solid var(--line,#202a44);
  background:var(--panel,#0f1525);color:var(--dim,#93a0bb);font-weight:600;font-size:13px;
  display:inline-flex;align-items:center;gap:8px;transition:.16s;flex-shrink:0;cursor:pointer;
}
.auth-btn:hover{color:#fff;border-color:#34416a}
.auth-btn .avatar{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#5b8cff,#36d6b0);
  display:inline-flex;align-items:center;justify-content:center;color:#06122c;font-weight:800;font-size:11px}

.auth-menu{position:fixed;z-index:300;min-width:200px;background:#0f1525;border:1px solid #202a44;
  border-radius:12px;box-shadow:0 24px 70px rgba(0,0,0,.55);padding:8px;display:none}
.auth-menu.open{display:block}
.auth-menu .am-email{padding:8px 10px;color:#93a0bb;font-size:12px;border-bottom:1px solid #202a44;margin-bottom:6px;word-break:break-all}
.auth-menu button{width:100%;text-align:left;background:none;border:0;color:#eef2fb;padding:9px 10px;border-radius:8px;font-size:13px;cursor:pointer}
.auth-menu button:hover{background:#16203a}

.auth-overlay{position:fixed;inset:0;z-index:320;background:rgba(5,8,14,.66);backdrop-filter:blur(4px);
  display:none;align-items:center;justify-content:center}
.auth-overlay.open{display:flex}
.auth-card{width:min(400px,92vw);background:linear-gradient(180deg,#131b30,#0d1320);
  border:1px solid #202a44;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.6);padding:30px 28px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft Yahei",sans-serif;color:#eef2fb}
.auth-card h2{margin:0 0 4px;font-size:21px;color:#fff}
.auth-card .sub{margin:0 0 20px;color:#93a0bb;font-size:13px}
.auth-card label{display:block;margin:0 0 12px}
.auth-card label span{display:block;font-size:12px;color:#93a0bb;margin-bottom:6px}
.auth-card input{width:100%;height:42px;padding:0 13px;border-radius:11px;background:#0b1120;
  border:1px solid #202a44;color:#eef2fb;outline:none;transition:.15s;font-size:14px}
.auth-card input:focus{border-color:#5b8cff;box-shadow:0 0 0 3px rgba(91,140,255,.18)}
.auth-card .err{color:#ff8095;font-size:12.5px;margin:2px 0 12px;min-height:16px}
.auth-card .submit{width:100%;height:44px;border-radius:11px;border:0;margin-top:4px;
  background:linear-gradient(180deg,#5b8cff,#3f6fe0);color:#fff;font-weight:700;font-size:14px;cursor:pointer;transition:.15s}
.auth-card .submit:hover{filter:brightness(1.07)}
.auth-card .submit:disabled{opacity:.6;cursor:default}
.auth-card .toggle{margin-top:16px;text-align:center;color:#93a0bb;font-size:13px}
.auth-card .toggle a{color:#7aa2ff;cursor:pointer;font-weight:600}
.auth-card .x{position:absolute;top:14px;right:16px;background:none;border:0;color:#93a0bb;font-size:22px;cursor:pointer}
.auth-card{position:relative}