/* 全站「去除水印」浮动按钮（非 VIP 可见） */

.yt-wm-remove-btn {

    position: fixed;

    left: 20px;

    bottom: 24px;

    z-index: 1040;

    display: inline-flex;

    align-items: center;

    gap: 6px;

    padding: 8px 14px;

    border: 1px solid color-mix(in srgb, var(--nav-cta-from) 35%, var(--border-color));

    border-radius: 999px;

    background: linear-gradient(

        135deg,

        color-mix(in srgb, var(--nav-cta-from) 10%, var(--bg-card)) 0%,

        color-mix(in srgb, var(--nav-cta-to) 12%, var(--bg-card)) 100%

    );

    color: var(--primary-color);

    font-size: 0.82rem;

    font-weight: 600;

    line-height: 1.2;

    cursor: pointer;

    box-shadow: 0 4px 16px var(--nav-cta-shadow);

    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, opacity 0.2s;

}



.yt-wm-remove-btn i {

    font-size: 1rem;

    color: var(--nav-cta-to);

}



.yt-wm-remove-btn:hover {

    transform: translateY(-1px);

    border-color: color-mix(in srgb, var(--nav-cta-from) 50%, var(--border-color));

    box-shadow: 0 6px 20px var(--nav-cta-shadow);

    opacity: 0.92;

}



.yt-wm-remove-btn:active {

    transform: translateY(0);

}



body.has-anon-login-bar:not(.hub-embed) .yt-wm-remove-btn {

    bottom: 56px;

}



@media (max-width: 768px) {

    .yt-wm-remove-btn {

        left: 16px;

        bottom: 20px;

        padding: 7px 12px;

        font-size: 0.78rem;

    }



    body.has-anon-login-bar:not(.hub-embed) .yt-wm-remove-btn {

        bottom: 72px;

    }

}



html[data-theme="dark"] .yt-wm-remove-btn {

    border-color: color-mix(in srgb, var(--nav-cta-from) 28%, var(--border-color));

    background: linear-gradient(

        135deg,

        color-mix(in srgb, var(--nav-cta-from) 18%, var(--bg-card)) 0%,

        color-mix(in srgb, var(--nav-cta-to) 14%, var(--bg-card)) 100%

    );

    color: var(--text-primary);

    box-shadow: var(--shadow-md);

}



html[data-theme="dark"] .yt-wm-remove-btn i {

    color: var(--nav-cta-to);

}