/* CapCutGuide: saved body buttons, with a progressive article navigation rail. */
body .dl-cta > a.tr-download-btn,
body .cg-home-download > a.tr-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 52px;
    max-width: 100%;
    padding: 13px 25px;
    border: 1px solid transparent !important;
    border-radius: 12px;
    background: var(--cyan, #00D9E8);
    color: #06171D !important;
    font: 750 15px/1.5 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    letter-spacing: -.01em;
    text-align: center;
    text-decoration: none !important;
    box-shadow: 0 8px 28px -16px rgba(0, 217, 232, .7);
    transition: background .16s ease, box-shadow .16s ease;
}
body a.tr-download-btn::before {
    content: '\2193';
    flex: 0 0 16px;
    width: 16px;
    font-size: 22px;
    font-weight: 600;
    line-height: 1;
}
body .dl-cta > a.tr-download-btn:hover,
body .cg-home-download > a.tr-download-btn:hover {
    background: #48E8F0;
    color: #06171D !important;
    box-shadow: 0 10px 30px -15px rgba(0, 217, 232, .65);
}
body a.tr-download-btn:focus-visible {
    outline: 3px solid var(--paper, #F2F3FA);
    outline-offset: 5px;
}
.cg-home-download { margin: 25px auto 0; }
.cg-home-download .tr-download-btn { min-width: 210px; }
.dl-cta { margin: 24px 0; }
.cg-hub-download { margin: 24px 0 30px; }
.cg-hub-download .tr-download-btn { min-width: 220px; }

/* The single saved card stays in its original article DOM. Only its visual
   coordinates follow the adjacent rail; the theme never creates an anchor. */
.cg-download-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 760px);
    align-items: start;
    justify-content: center;
    gap: 40px;
    max-width: 1180px;
}
.cg-download-layout > .cg-download-body { min-width: 0; position: relative; }
.cg-download-layout > .hub-content { margin-top: 0; }
.cg-download-layout > .cg-article-side {
    position: sticky;
    top: 88px;
    min-width: 0;
    padding-top: calc(var(--cg-download-height, 86px) + 22px);
}
.cg-download-layout [data-cg-download-card] {
    position: absolute;
    top: var(--cg-download-top, 0px);
    left: var(--cg-download-left, 0px);
    width: var(--cg-download-width, 220px);
    margin: 0 !important;
    padding: 14px;
    border: 1px solid var(--line2);
    border-radius: 17px;
    background: linear-gradient(145deg, rgba(0, 217, 232, .075), transparent 72%), var(--panel);
    z-index: 2;
}
.cg-download-layout [data-cg-download-card] > a.tr-download-btn {
    display: flex;
    width: 100%;
    padding-inline: 16px;
}
.cg-article-toc {
    color: var(--dim);
    border-top: 1px solid var(--line2);
    padding-top: 17px;
}
.cg-article-toc > summary {
    color: var(--paper);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: .1em;
    text-transform: uppercase;
    cursor: pointer;
}
.cg-article-toc > summary:focus-visible,
.cg-article-toc a:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 4px;
    border-radius: 3px;
}
.cg-article-toc nav {
    max-height: max(100px, calc(100dvh - var(--cg-download-height, 86px) - 175px));
    margin-top: 13px;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--line2) transparent;
}
.cg-article-toc ol { list-style: none; padding: 0 10px 0 0; margin: 0; }
.cg-article-toc li + li { margin-top: 3px; }
.cg-article-toc a {
    display: block;
    padding: 7px 0;
    color: var(--dim);
    font-size: 12px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}
.cg-article-toc a:hover { color: var(--cyan); }
.cg-download-body h2[id] { scroll-margin-top: 92px; }

@media (max-width: 960px) {
    .cg-download-layout {
        display: block;
        max-width: 824px;
    }
    .cg-download-layout > .cg-article-side {
        position: relative;
        top: auto;
        margin-bottom: 26px;
        padding-top: calc(var(--cg-download-height, 52px) + 16px);
    }
    .cg-download-layout [data-cg-download-card] {
        padding: 0;
        border: 0;
        border-radius: 0;
        background: none;
    }
    .cg-article-toc {
        padding: 13px 16px;
        border: 1px solid var(--line);
        border-radius: 12px;
        background: var(--panel);
    }
    .cg-article-toc > summary { padding: 2px 0; font-size: 11px; }
    .cg-article-toc nav { max-height: min(52vh, 360px); }
    .cg-article-toc a { padding: 8px 0; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
    body a.tr-download-btn { transition: none; }
    .cg-download-layout { scroll-behavior: auto; }
}