/* 启动与错误提示不依赖 Tailwind，旧版浏览器或主脚本未加载时也能正常显示。 */
.bsr-startup-screen{position:fixed;inset:0;top:0;right:0;bottom:0;left:0;z-index:2147483000;display:flex;align-items:center;justify-content:center;box-sizing:border-box;min-height:100vh;padding:24px;background:#edf7ff;color:#18324d;font-family:"Microsoft YaHei",sans-serif}
.bsr-startup-card{box-sizing:border-box;width:360px;max-width:100%;padding:30px;border:1px solid #c4e1f5;border-radius:22px;background:#fff;box-shadow:0 20px 55px rgba(55,96,128,.15);text-align:center}
.bsr-startup-card img{display:block;width:56px;height:56px;margin:0 auto 18px}
.bsr-startup-card h1{font-size:22px;margin:0 0 14px;font-weight:700;line-height:1.4}
.bsr-startup-card p{font-size:15px;line-height:1.8;margin:0;color:#5b7289}
.bsr-startup-card button{margin-top:20px;padding:10px 22px;border:1px solid #81c4ec;border-radius:10px;background:#eff8ff;color:#21669b;cursor:pointer;font-size:15px}
.bsr-startup-card [hidden]{display:none!important}