/* T8 全站统一顶栏（官网 / 论坛共用这唯一实现，由 topbar.js 挂载）
   改这里的值，两边同时生效——不要再单独改 site.css 或 bridge.less 的顶栏 */
.t8bar{position:fixed;top:0;left:0;right:0;z-index:1100;background:#0b121e;
  backdrop-filter:none;border-bottom:1px solid rgba(255,255,255,.10);
  font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;letter-spacing:.1px}
/* 预留顶栏高度：fixed 顶栏脱离文档流，用 body 顶部内边距占位，
   使论坛里 topbar.js 晚挂载顶栏时内容不再被下推（消除重刷/跳动）。 */
body{padding-top:62px}
.t8bar .row{display:flex;align-items:center;gap:26px;height:62px;max-width:1200px;margin:0 auto;padding:0 32px}
.t8bar .logo{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;font-size:16px;letter-spacing:.2px;text-decoration:none;white-space:nowrap;flex:none}
.t8bar .logo b{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:7px;
  background:linear-gradient(135deg,#00d4ff,#2e5bff);color:#fff;font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:11.5px;font-weight:800;box-shadow:0 0 16px rgba(0,212,255,.5),inset 0 1px 0 rgba(255,255,255,.35)}
.t8bar .logo i{font-style:normal;font-size:14px;color:#fff;font-weight:700;letter-spacing:.5px}
.t8bar nav{display:flex;gap:2px;margin-left:auto}
.t8bar nav a{color:#aab3c0;padding:7px 11px;border-radius:6px;font-size:14px;line-height:1.75;white-space:nowrap;text-decoration:none;transition:.15s}
.t8bar nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.t8bar nav a.on{color:#fff;font-weight:600;background:rgba(255,255,255,.10)}
.t8bar .cd{font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-size:11.5px;color:#9aa6b6;letter-spacing:-.2px;white-space:nowrap;flex:none}
.t8bar .cta{flex:none;background:linear-gradient(135deg,#00d4ff,#0891b2);color:#06121f !important;font-weight:600;line-height:1.75;font-size:15.5px;padding:7px 15px;border-radius:6px;text-decoration:none;white-space:nowrap;box-shadow:0 0 36px -6px rgba(0,212,255,.55)}
.t8bar .cta:hover{background:linear-gradient(135deg,#33e0ff,#0071bd);color:#fff !important}
.t8bar .auth{display:flex;gap:6px;align-items:center}
.t8bar .auth a{color:#aab3c0;padding:7px 10px;border-radius:6px;font-size:14px;line-height:1.75;white-space:nowrap;text-decoration:none;transition:.15s}
.t8bar .auth a:hover{background:rgba(255,255,255,.08);color:#fff}
.t8bar .auth a.me{color:#e7ecf3;font-weight:600}
@media(max-width:720px){.t8bar nav{display:none}.t8bar .logo i{display:none}.t8bar .cd{display:none}}