html, body { margin: 0; }
.platform-launch { position: fixed; inset: 0; z-index: 10000; overflow: hidden; display: grid; place-items: center; min-width: 320px; color: #253653; background: #f6f9fe; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; opacity: 1; transition: opacity 180ms ease; }
.platform-launch--leaving { opacity: 0; pointer-events: none; }
.platform-launch__ambient { position: absolute; inset: 0; background: radial-gradient(ellipse at 18% 20%, #e6eeff 0, transparent 44%), radial-gradient(ellipse at 84% 77%, #e8f5f8 0, transparent 43%); }
.platform-launch__ambient::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(#6988bd09 1px, transparent 1px), linear-gradient(90deg, #6988bd09 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse at center, #000, transparent 70%); }
.platform-launch__content { position: relative; width: min(400px, calc(100% - 48px)); margin-top: -35px; text-align: center; }
.platform-launch__brand { position: relative; display: grid; place-items: center; width: 78px; height: 78px; margin: 0 auto 30px; border: 1px solid #dbe6f7; border-radius: 23px; background: #fff; box-shadow: 0 12px 30px #396be915; }
.platform-launch__brand img { display: block; width: 100%; height: 100%; object-fit: contain; }
.platform-launch__brand::after { content: ""; position: absolute; inset: -10px; border: 1px solid #5c83e91a; border-radius: 32px; }
.platform-launch__eyebrow { margin: 0 0 12px; color: #7b92b8; font-size: 10px; letter-spacing: 3px; font-weight: 600; }
.platform-launch h1 { margin: 0; color: #263855; font-size: 30px; letter-spacing: 4px; font-weight: 650; line-height: 1.5; }
.platform-launch h1 span { display: block; margin-top: 7px; color: #526884; font-size: 15px; letter-spacing: 2px; font-weight: 400; }
.platform-launch__description { margin: 23px 0 0; color: #8494ac; font-size: 12px; line-height: 1.8; letter-spacing: .8px; }
.platform-launch__track { position: relative; width: 168px; height: 3px; margin: 39px auto 15px; border-radius: 10px; overflow: hidden; background: #e0e8f6; }
.platform-launch__track i { display: block; width: 45%; height: 100%; border-radius: inherit; background: #5b85ee; animation: platform-launch-indeterminate 1.6s ease-in-out infinite; }
.platform-launch__message { margin: 0; color: #8998ae; font-size: 11px; line-height: 1.8; }
.platform-launch__retry { margin-top: 22px; padding: 10px 20px; border: 1px solid #d4dff4; border-radius: 7px; color: #3c6ddd; background: #fff; font: inherit; font-size: 12px; cursor: pointer; }.platform-launch__retry:focus-visible { outline: 3px solid #9db9f4; outline-offset: 3px; }.platform-launch__retry[hidden] { display: none; }
.platform-launch--failed .platform-launch__track { background: #e8d6ba; }.platform-launch--failed .platform-launch__track i { animation: none; width: 100%; background: #d7ad64; }
.platform-launch__footer { position: absolute; bottom: 30px; display: flex; align-items: center; gap: 7px; color: #98a6ba; font-size: 10px; letter-spacing: .6px; }.platform-launch__footer span { width: 5px; height: 5px; border-radius: 50%; background: #70b5a3; }
@keyframes platform-launch-indeterminate { from { transform: translateX(-110%); } to { transform: translateX(330%); } }
@media (max-width: 480px) { .platform-launch__brand { width: 68px; height: 68px; border-radius: 21px; }.platform-launch h1 { font-size: 27px; }.platform-launch h1 span { font-size: 14px; }.platform-launch__footer { bottom: 22px; } }
@media (prefers-reduced-motion: reduce) { .platform-launch { transition: none; }.platform-launch__track i { animation: none; margin-left: 28%; } }