/* v7 preserve-brand editorial reading UI, scoped to the guarded preview column. */
.renew-video-reading-preview {
    --renew-reading-page: #fcfcfa;
    --renew-reading-surface: #f3f2ef;
    --renew-reading-ink: #292825;
    --renew-reading-muted: #625f5b;
    --renew-reading-line: #d8d5ce;
    --renew-reading-accent: #610706;
    --renew-reading-active: #f4e8e5;
    --renew-video-header-offset: 24px;
    display: block;
    min-width: 0;
    max-width: 100%;
    margin: 0;
    padding: 0;
    background: var(--renew-reading-page);
    color: var(--renew-reading-ink);
    color-scheme: light;
    font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

.renew-video-reading-preview *,
.renew-video-reading-preview *::before,
.renew-video-reading-preview *::after {
    box-sizing: border-box;
}

/* Keep the existing site wrapper from creating a horizontal page scroll. */
.wrapper.renew-video-reading-host {
    overflow-x: clip;
    overflow-y: visible;
}

.renew-video-reading-preview a {
    color: var(--renew-reading-accent);
    text-underline-offset: .22em;
    text-decoration-thickness: 1px;
}

.renew-video-reading-preview a:hover {
    text-decoration-thickness: 2px;
}

.renew-video-reading-preview :focus-visible {
    outline: 2px solid var(--renew-reading-accent);
    outline-offset: 4px;
}

.renew-video-reading-preview [hidden] {
    display: none !important;
}

.renew-video-reading-preview .renew-video-reading-stage {
    display: grid;
    grid-template-columns: 208px minmax(0, 740px);
    gap: 56px;
    align-items: start;
    width: 100%;
    max-width: 100%;
}

.renew-video-reading-preview .renew-video-reading-main {
    min-width: 0;
    max-width: 100%;
}

.renew-video-reading-preview .renew-article-header {
    margin: 0 0 28px;
}

.renew-video-reading-preview h1 {
    margin: 0 0 20px;
    font-size: clamp(27px, 2.65vw, 38px);
    line-height: 1.45;
    font-weight: 700;
    letter-spacing: .015em;
    overflow-wrap: anywhere;
}

.renew-video-reading-preview .article-byline {
    color: var(--renew-reading-muted);
    font-size: 15px;
    line-height: 1.8;
}

.renew-video-reading-preview .article-byline p {
    margin: 0;
}

.renew-video-reading-preview .video-content {
    margin: 0 0 32px;
    scroll-margin-top: var(--renew-video-anchor-offset, 86px);
}

.renew-video-reading-preview .video-embed {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--renew-reading-surface);
}

.renew-video-reading-preview .video-embed iframe {
    display: block;
    width: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
}

.renew-video-reading-preview .video-thumbnail {
    display: none;
}

.renew-video-reading-preview .renew-article {
    min-width: 0;
    max-width: 100%;
    font-size: 19px;
    line-height: 1.95 !important;
    overflow-wrap: anywhere;
}

.renew-video-reading-preview .renew-article > blockquote {
    margin: 0 0 28px;
    padding: 0;
    border: 0;
    color: var(--renew-reading-muted);
    font-size: 15px;
    line-height: 1.8;
}

.renew-video-reading-preview .renew-article > blockquote p {
    margin: 0;
}

.renew-video-reading-preview .renew-article p {
    margin: 0 0 1.25em;
}

.renew-video-reading-preview .renew-article > p:first-child,
.renew-video-reading-preview .renew-article > blockquote + p {
    font-size: 20px;
    line-height: 1.9;
}

.renew-video-reading-preview .renew-article h2 {
    margin: 2.75em 0 .9em;
    color: var(--renew-reading-ink);
    font-size: 26px;
    line-height: 1.55;
    font-weight: 700;
    letter-spacing: .01em;
}

.renew-video-reading-preview .renew-article h3 {
    margin: 1.7em 0 .65em;
    font-size: 21px;
    line-height: 1.6;
}

.renew-video-reading-preview .renew-video-reading-main h2,
.renew-video-reading-preview .renew-video-reading-main h3,
.renew-video-reading-preview .renew-video-reading-main .video-content {
    scroll-margin-top: var(--renew-video-anchor-offset, 86px);
}

.renew-video-reading-preview .renew-article ul,
.renew-video-reading-preview .renew-article ol {
    margin: .8em 0 1.5em;
    padding-left: 1.5em;
}

.renew-video-reading-preview .renew-article li {
    margin: .3em 0;
    padding-left: .2em;
}

.renew-video-reading-preview .renew-article strong {
    font-weight: 700;
}

.renew-video-reading-preview .renew-timecode {
    color: #a00000 !important;
    font-size: .88em;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.renew-video-reading-preview .renew-timecode:hover {
    color: var(--renew-reading-accent) !important;
}

.renew-video-reading-preview .renew-article-table {
    max-width: 100%;
    margin: 1.6em 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.renew-video-reading-preview table {
    width: 100%;
    border-collapse: collapse;
    font-size: 16px;
    line-height: 1.75;
}

.renew-video-reading-preview th {
    background: var(--renew-reading-surface);
    font-weight: 600;
}

.renew-video-reading-preview th,
.renew-video-reading-preview td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--renew-reading-line);
    text-align: left;
    vertical-align: top;
}

.renew-video-reading-preview .renew-video-reading-toc {
    position: sticky;
    top: var(--renew-video-header-offset, 84px);
    align-self: start;
    max-height: calc(100dvh - var(--renew-video-header-offset, 84px) - 20px);
    padding: 8px 0 0;
    overflow: hidden;
    background: var(--renew-reading-page);
    color: var(--renew-reading-muted);
}

.renew-video-reading-preview .renew-video-reading-toc > summary {
    padding: 0 14px 16px;
    color: var(--renew-reading-ink);
    font-size: 15px;
    line-height: 1.5;
    font-weight: 700;
    cursor: pointer;
}

.renew-video-reading-preview .renew-video-reading-toc-nav {
    max-height: calc(100dvh - var(--renew-video-header-offset, 84px) - 80px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
}

.renew-video-reading-preview .renew-video-reading-toc-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.renew-video-reading-preview .renew-video-reading-toc-item {
    margin: 0;
    padding: 0;
}

.renew-video-reading-preview .renew-video-reading-toc a {
    display: block;
    margin: 2px 0;
    padding: 10px 12px;
    border-left: 2px solid transparent;
    color: var(--renew-reading-muted);
    font-size: 15px;
    line-height: 1.6;
    text-decoration: none;
}

.renew-video-reading-preview .renew-video-reading-toc-item[data-level="3"] a {
    padding-left: 24px;
    font-size: 14px;
}

.renew-video-reading-preview .renew-video-reading-toc a:hover {
    color: var(--renew-reading-accent);
    background: var(--renew-reading-surface);
}

.renew-video-reading-preview .renew-video-reading-toc a.is-active {
    color: var(--renew-reading-accent);
    border-left-color: var(--renew-reading-accent);
    background: var(--renew-reading-active);
    font-weight: 700;
}

.renew-video-reading-preview .renew-video-timecode-return {
    margin: 12px 8px 0 0;
    padding: 10px 16px;
    color: var(--renew-reading-accent);
    background: var(--renew-reading-page);
    border: 1px solid var(--renew-reading-accent);
    border-radius: 4px;
    font: inherit;
    font-size: 14px;
    line-height: 1.5;
    cursor: pointer;
}

.renew-video-reading-preview .renew-video-timecode-return:hover {
    background: var(--renew-reading-active);
}

.renew-video-reading-preview .renew-video-timecode-return:active {
    transform: translateY(1px);
}

.renew-video-reading-preview .renew-video-timecode-status {
    display: inline-block;
    color: var(--renew-reading-muted);
    font-size: 13px;
    line-height: 1.6;
}

.renew-video-reading-preview .renew-faq {
    margin-top: 64px;
    padding-top: 2px;
    border-top: 2px solid var(--renew-reading-accent);
}

.renew-video-reading-preview .renew-faq > h2 {
    margin-top: 28px;
}

.renew-video-reading-preview .renew-faq h3 {
    margin-top: 30px;
}

.renew-video-reading-preview .renew-faq p {
    font-size: 18px;
}

.renew-video-reading-preview .renew-doctor {
    margin-top: 44px;
    padding: 24px;
    background: var(--renew-reading-surface);
    border-radius: 4px;
}

.renew-video-reading-preview .renew-doctor h2 {
    margin: 0 0 8px;
    font-size: 20px;
}

.renew-video-reading-preview .renew-doctor p {
    margin: 0;
    font-size: 16px;
}

.renew-video-reading-preview .renew-video-reading-toc > summary:focus-visible,
.renew-video-reading-preview .renew-video-reading-toc a:focus-visible,
.renew-video-reading-preview .renew-timecode:focus-visible,
.renew-video-reading-preview .renew-video-timecode-return:focus-visible {
    outline: 2px solid var(--renew-reading-accent);
    outline-offset: 4px;
}

@media (max-width: 1099px) {
    .renew-video-reading-preview .renew-video-reading-stage {
        display: block;
    }

    .renew-video-reading-preview .renew-video-reading-toc {
        position: sticky;
        z-index: 2;
        width: 100%;
        max-width: 100%;
        max-height: none;
        margin: 0 0 24px;
        padding: 0;
        overflow: visible;
        border: 1px solid var(--renew-reading-line);
        border-radius: 4px;
    }

    .renew-video-reading-preview .renew-video-reading-toc > summary {
        padding: 12px 16px;
    }

    .renew-video-reading-preview .renew-video-reading-toc-nav {
        position: absolute;
        top: 100%;
        left: -1px;
        right: -1px;
        max-height: min(45dvh, 340px);
        padding: 0 8px 8px;
        background: var(--renew-reading-page);
        border: 1px solid var(--renew-reading-line);
        border-top: 0;
        border-radius: 0 0 4px 4px;
    }

    .renew-video-reading-preview .renew-video-reading-toc a {
        padding: 10px 12px;
    }

    .renew-video-reading-preview .renew-video-reading-toc-item[data-level="3"] a {
        padding-left: 24px;
    }
}

@media (max-width: 599px) {
    .renew-video-reading-preview h1 {
        margin-bottom: 16px;
        font-size: 27px;
        line-height: 1.5;
    }

    .renew-video-reading-preview .renew-article {
        font-size: 18px;
        line-height: 1.95 !important;
    }

    .renew-video-reading-preview .renew-article > p:first-child,
    .renew-video-reading-preview .renew-article > blockquote + p {
        font-size: 18px;
    }

    .renew-video-reading-preview .renew-article h2 {
        margin-top: 2.4em;
        font-size: 23px;
    }

    .renew-video-reading-preview .renew-article h3 {
        font-size: 20px;
    }

    .renew-video-reading-preview .renew-faq p {
        font-size: 17px;
    }

    .renew-video-reading-preview .renew-doctor {
        padding: 20px;
    }

    .renew-video-reading-preview .renew-doctor h2 {
        margin-top: 0;
    }

    .renew-video-reading-preview th,
    .renew-video-reading-preview td {
        min-width: 100px;
        padding: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .renew-video-reading-preview *,
    .renew-video-reading-preview *::before,
    .renew-video-reading-preview *::after {
        scroll-behavior: auto !important;
        animation: none !important;
        transition: none !important;
    }
}

@media print {
    .renew-video-reading-preview .renew-video-reading-toc,
    .renew-video-reading-preview .video-content {
        display: none;
    }

    .renew-video-reading-preview {
        --renew-reading-page: white;
        --renew-reading-ink: #222;
        --renew-reading-muted: #555;
        --renew-reading-accent: #610706;
    }

    .renew-video-reading-preview .renew-video-reading-stage {
        display: block;
    }

    .renew-video-reading-preview .renew-article {
        font-size: 12pt;
    }

    .renew-video-reading-preview h2,
    .renew-video-reading-preview h3 {
        break-after: avoid;
    }
}