.logo-loop {
    --logo-gap: clamp(36px, 3.8vw, 74px);
    width: 100%;
    height: 196px;
    box-sizing: border-box;
    position: relative;
    top: 0;
    overflow: hidden;
    isolation: isolate;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 极简通透磨砂带：透光率提升，能微微透见页面底层流动的背景 */
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.42) 0%,
        rgba(255, 255, 255, 0.24) 48%,
        rgba(255, 255, 255, 0.36) 100%
    );
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 
        inset 0 1px 0 0 rgba(255, 255, 255, 0.9),
        inset 0 -1px 0 0 rgba(0, 0, 0, 0.02),
        0 8px 30px -4px rgba(15, 23, 42, 0.025);
}

/* 下方 Logo 滚动视口 */
.logo-loop__viewport {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 7%, #000 93%, transparent 100%);
    mask-image: linear-gradient(90deg, transparent 0%, #000 7%, #000 93%, transparent 100%);
}

.logo-loop__track,
.logo-loop__sequence {
    display: flex;
    align-items: center;
    width: max-content;
    height: 100%;
}

.logo-loop__track {
    will-change: transform;
}

.logo-loop__sequence {
    flex: none;
    gap: var(--logo-gap);
    padding-right: var(--logo-gap);
}

.logo-loop__item {
    position: relative;
    display: flex;
    flex: none;
    width: 88px;
    height: 132px;
    align-items: center;
    justify-content: center;
    padding-bottom: 18px;
    cursor: default;
    outline: none;
}

.logo-loop__item img {
    display: block;
    width: 74px;
    height: 74px;
    object-fit: contain;
    transform: scale(var(--logo-scale, 1));
    transition: transform 260ms cubic-bezier(.2, .8, .2, 1);
    pointer-events: auto;
}

.logo-loop__item:is([data-logo-name="NotebookLM"], [data-logo-name="Trae Work"]) {
    --logo-scale: 1.14;
}

.logo-loop__item[data-logo-name="Kimi"] {
    --logo-scale: 1.22;
}

.logo-loop__item[data-logo-name="DeepSeek"] {
    --logo-scale: 1.2;
}

.logo-loop__item[data-logo-name="Stitch"] {
    --logo-scale: 1.32;
}

.logo-loop__item[data-logo-name="Google AI Studio"] {
    --logo-scale: 0.84;
}

.logo-loop__item::after {
    content: attr(data-logo-name);
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translate(-50%, 5px);
    white-space: nowrap;
    color: #1e293b;
    font-size: 12px;
    line-height: 1.4;
    font-weight: 500;
    letter-spacing: .01em;
    opacity: 0;
    transition: opacity 180ms ease, transform 180ms ease;
    pointer-events: none;
}

.logo-loop__item:hover img,
.logo-loop__item:focus-visible img {
    transform: scale(calc(var(--logo-scale, 1) + .09));
}

.logo-loop__item:hover::after,
.logo-loop__item:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, 0);
}

.logo-loop__item:focus-visible {
    border-radius: 12px;
    outline: 2px solid #304bd5;
    outline-offset: -4px;
}

@media (max-width: 768px) {
    .logo-loop {
        --logo-gap: 28px;
        height: 156px;
    }

    .logo-loop__item {
        width: 72px;
        height: 112px;
        padding-bottom: 14px;
    }

    .logo-loop__item img {
        width: 62px;
        height: 62px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .logo-loop__viewport {
        overflow-x: auto;
        -webkit-mask-image: none;
        mask-image: none;
    }

    .logo-loop__track {
        will-change: auto;
    }

    .logo-loop__item img,
    .logo-loop__item::after {
        transition: none;
    }
}