#top-app-banner {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99;
    width: 100%;
    background: linear-gradient(90deg, #4F39F6 0%, #9810FA 50%, #372AAC 100%);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.10), 0 2px 4px -2px rgba(0, 0, 0, 0.10);
    color: #fff;
    box-sizing: border-box;
    margin: 0;
}

#top-app-banner.top-app-banner--hidden {
    display: none;
}

#top-app-banner .top-app-banner__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding:8px 0;
    max-width: 100%;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

#top-app-banner .top-app-banner__marquee-wrap {
    flex: 1;
    overflow: hidden;
    min-width: 0;
}

#top-app-banner .top-app-banner__marquee-track {
    display: flex;
    width: max-content;
    animation: tts-marquee 18s linear infinite;
    text-decoration: none;
    color: inherit;
}

#top-app-banner .top-app-banner__marquee-track:hover {
    animation-play-state: paused;
}

@keyframes tts-marquee {
    0%   { transform: translateX(0); }
    100% { transform: translateX(var(--marquee-shift, -50%)); }
}

#top-app-banner .top-app-banner__text {
    font-size: 24px;
    font-weight: 500;
    line-height: 1.4;
    color: #fff;
    white-space: nowrap;
    padding-right: 180px;
}

#top-app-banner .top-app-banner__close {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    font-size: 16px;
    cursor: pointer;
    padding: 0 14px;
    line-height: 1;
    transition: background 0.2s, color 0.2s;
    z-index: 10000;
    display: flex;
    align-items: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px); /* 兼容 Safari */
    background-color: rgba(0, 0, 0, 0.15); 
    border: 1px solid rgba(255, 255, 255, 0.2);
}

#top-app-banner .top-app-banner__close:hover {
    background-color: rgba(0, 0, 0, 0.3)
}