:root {
    --jnb-ivory: #f7f3e9;
    --jnb-paper: #fffdf8;
    --jnb-ink: #252a2d;
    --jnb-navy: #17354d;
    --jnb-red: #b34a35;
    --jnb-line: rgba(23, 53, 77, .18);
    --jnb-muted: #687077;
    --jnb-shadow: 0 16px 44px rgba(37, 42, 45, .08);
    --jnb-serif: "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Noto Serif JP", serif;
    --jnb-sans: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
}

body.jena-shogi-blog {
    margin: 0;
    color: var(--jnb-ink);
    background:
        radial-gradient(circle at 18% 12%, rgba(179, 74, 53, .035), transparent 30%),
        radial-gradient(circle at 82% 48%, rgba(23, 53, 77, .03), transparent 28%),
        var(--jnb-ivory);
    font-family: var(--jnb-sans);
    line-height: 1.8;
}

.jena-shogi-blog *,
.jena-shogi-blog *::before,
.jena-shogi-blog *::after {
    box-sizing: border-box;
}

.jena-shogi-blog a {
    color: inherit;
    text-decoration: none;
}

.jena-shogi-blog img {
    display: block;
    max-width: 100%;
}

.jnb-site-header {
    position: sticky;
    z-index: 1000;
    top: 0;
    width: 100%;
    border-bottom: 1px solid rgba(37, 42, 45, .1);
    background: rgba(255, 253, 248, .96);
    backdrop-filter: blur(14px);
}

.admin-bar .jnb-site-header {
    top: 32px;
}

.jnb-header-inner {
    display: flex;
    width: min(calc(100% - 40px), 1440px);
    min-height: 74px;
    margin: 0 auto;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.jnb-brand,
.jnb-footer-brand {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 12px;
    color: var(--jnb-navy);
    font-family: var(--jnb-serif);
    font-size: 21px;
    font-weight: 700;
    letter-spacing: .04em;
}

.jnb-brand-logo {
    width: 238px;
    height: auto;
    padding: 3px 7px;
    border: 1px solid rgba(23, 53, 77, .14);
    background: #fff;
}

.jnb-brand-mark {
    display: inline-grid;
    width: 34px;
    height: 39px;
    place-items: center;
    color: #fff;
    background: var(--jnb-navy);
    font-family: var(--jnb-serif);
    font-size: 17px;
    line-height: 1;
    clip-path: polygon(50% 0, 92% 16%, 86% 100%, 14% 100%, 8% 16%);
}

.jnb-desktop-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(18px, 2vw, 34px);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

.jnb-desktop-nav > a:not(.jnb-header-cta) {
    position: relative;
    padding: 25px 0 23px;
}

.jnb-desktop-nav > a:not(.jnb-header-cta)::after {
    position: absolute;
    right: 0;
    bottom: 17px;
    left: 0;
    height: 2px;
    content: "";
    background: var(--jnb-red);
    transform: scaleX(0);
    transition: transform .2s ease;
}

.jnb-desktop-nav > a:hover::after,
.jnb-desktop-nav > a.is-current::after {
    transform: scaleX(1);
}

.jnb-desktop-nav > a.is-current {
    color: var(--jnb-red);
}

.jnb-header-cta {
    padding: 11px 20px;
    border-radius: 8px;
    color: #fff !important;
    background: var(--jnb-navy);
    box-shadow: 0 7px 18px rgba(23, 53, 77, .16);
}

.jnb-mobile-nav {
    display: none;
    position: relative;
}

.jnb-mobile-nav summary {
    display: grid;
    width: 42px;
    height: 42px;
    padding: 10px;
    cursor: pointer;
    list-style: none;
    align-content: space-between;
}

.jnb-mobile-nav summary::-webkit-details-marker {
    display: none;
}

.jnb-mobile-nav summary span {
    display: block;
    height: 2px;
    background: var(--jnb-navy);
}

.jnb-mobile-panel {
    position: absolute;
    top: 50px;
    right: 0;
    display: grid;
    width: min(320px, calc(100vw - 32px));
    padding: 14px;
    border: 1px solid var(--jnb-line);
    border-radius: 12px;
    background: var(--jnb-paper);
    box-shadow: var(--jnb-shadow);
}

.jnb-mobile-panel a {
    padding: 12px 10px;
    border-bottom: 1px solid rgba(23, 53, 77, .1);
}

.jnb-mobile-panel a:last-child {
    border-bottom: 0;
    color: var(--jnb-red);
    font-weight: 700;
}

.jnb-archive {
    width: min(calc(100% - 48px), 1140px);
    margin: 0 auto;
    padding: 72px 0 100px;
}

.jnb-archive-hero {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: center;
    gap: 56px;
}

.jnb-archive-heading {
    position: relative;
    padding: 34px 0;
}

.jnb-archive-heading > p:first-of-type,
.jnb-related > p {
    margin: 0 0 7px;
    color: var(--jnb-red);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .18em;
}

.jnb-archive-heading h1 {
    margin: 0;
    font-family: var(--jnb-serif);
    font-size: clamp(38px, 3.5vw, 52px);
    font-weight: 600;
    letter-spacing: .1em;
    line-height: 1.35;
    word-break: keep-all;
}

.jnb-heading-line {
    width: 72px;
    height: 2px;
    margin: 24px 0 20px;
    background: var(--jnb-red);
}

.jnb-archive-lead {
    margin: 0;
    font-family: var(--jnb-serif);
    font-size: 18px;
    letter-spacing: .04em;
}

.jnb-piece-pair {
    position: absolute;
    right: 8px;
    bottom: -12px;
    display: flex;
    align-items: flex-end;
    opacity: .8;
    transform: rotate(-7deg);
}

.jnb-piece-pair i {
    display: grid;
    width: 45px;
    height: 51px;
    margin-left: -8px;
    place-items: center;
    color: #3a3124;
    background: #dfb36e;
    clip-path: polygon(50% 0, 92% 17%, 87% 100%, 13% 100%, 8% 17%);
    font-family: var(--jnb-serif);
    font-size: 18px;
    font-style: normal;
    font-weight: 700;
    filter: drop-shadow(0 5px 5px rgba(37, 42, 45, .16));
}

.jnb-piece-pair i:last-child {
    width: 52px;
    height: 60px;
    transform: rotate(12deg);
}

.jnb-featured-card {
    display: grid;
    overflow: hidden;
    grid-template-columns: minmax(300px, .95fr) 1.15fr;
    min-height: 330px;
    border: 1px solid rgba(23, 53, 77, .12);
    border-radius: 14px;
    background: rgba(255, 255, 255, .84);
    box-shadow: var(--jnb-shadow);
}

.jnb-featured-image,
.jnb-post-image,
.jnb-hero-image {
    overflow: hidden;
    background: #d7c29d;
}

.jnb-featured-image img,
.jnb-post-image img,
.jnb-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
}

.jnb-featured-card:hover .jnb-featured-image img,
.jnb-post-card:hover .jnb-post-image img {
    transform: scale(1.035);
}

.jnb-featured-body {
    display: flex;
    padding: clamp(28px, 4vw, 48px);
    flex-direction: column;
    justify-content: center;
}

.jnb-category-badge,
.jnb-post-image span {
    display: inline-flex;
    align-self: flex-start;
    padding: 5px 13px;
    border-radius: 5px;
    color: #fff;
    background: var(--jnb-red);
    font-size: 12px;
    font-weight: 700;
}

.jnb-featured-body h2 {
    margin: 18px 0 12px;
    font-family: var(--jnb-serif);
    font-size: clamp(25px, 2.4vw, 35px);
    font-weight: 600;
    line-height: 1.45;
}

.jnb-featured-body > p {
    margin: 0;
    color: #51575b;
    font-size: 14px;
}

.jnb-card-meta {
    display: flex;
    margin-top: 30px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    color: var(--jnb-muted);
    font-size: 13px;
}

.jnb-card-meta a,
.jnb-read-more {
    color: var(--jnb-red);
    font-weight: 700;
}

.jnb-card-meta a span,
.jnb-read-more span {
    margin-left: 8px;
    font-size: 22px;
    line-height: 0;
}

.jnb-category-filter {
    display: flex;
    margin: 40px auto 34px;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.jnb-category-filter a {
    min-width: 132px;
    padding: 8px 18px;
    border: 1px solid var(--jnb-navy);
    border-radius: 999px;
    color: var(--jnb-navy);
    background: rgba(255, 255, 255, .54);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: .2s ease;
}

.jnb-category-filter a:hover,
.jnb-category-filter a.is-active {
    border-color: var(--jnb-red);
    color: #fff;
    background: var(--jnb-red);
}

.jnb-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.jnb-post-card {
    overflow: hidden;
    border: 1px solid rgba(23, 53, 77, .12);
    border-radius: 12px;
    background: rgba(255, 255, 255, .86);
    box-shadow: 0 11px 28px rgba(37, 42, 45, .07);
    transition: transform .2s ease, box-shadow .2s ease;
}

.jnb-post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--jnb-shadow);
}

.jnb-post-image {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
}

.jnb-post-image span {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--jnb-navy);
}

.jnb-post-body {
    padding: 20px 22px 22px;
}

.jnb-post-body time {
    color: var(--jnb-muted);
    font-size: 12px;
}

.jnb-post-body h2,
.jnb-post-body h3 {
    margin: 8px 0 9px;
    font-family: var(--jnb-serif);
    font-size: 21px;
    font-weight: 600;
    line-height: 1.5;
}

.jnb-post-body h3 {
    font-size: 18px;
}

.jnb-post-body p {
    margin: 0 0 18px;
    color: #5c6266;
    font-size: 13px;
    line-height: 1.8;
}

.jnb-read-more {
    display: block;
    font-size: 13px;
    text-align: right;
}

.jnb-subscribe-cta,
.jnb-empty-state {
    display: grid;
    margin-top: 36px;
    padding: 25px 32px;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 24px;
    border: 1px solid rgba(23, 53, 77, .12);
    border-radius: 12px;
    background: rgba(255, 255, 255, .86);
    box-shadow: 0 10px 26px rgba(37, 42, 45, .06);
}

.jnb-mail-icon {
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--jnb-navy);
    font-size: 22px;
}

.jnb-subscribe-cta h2,
.jnb-empty-state h2 {
    margin: 0;
    font-family: var(--jnb-serif);
    font-size: 21px;
    font-weight: 600;
}

.jnb-subscribe-cta p,
.jnb-empty-state p {
    margin: 3px 0 0;
    color: var(--jnb-muted);
    font-size: 13px;
}

.jnb-subscribe-cta > a {
    padding: 12px 23px;
    border-radius: 6px;
    color: #fff;
    background: var(--jnb-red);
    font-weight: 700;
}

.jnb-empty-state {
    display: block;
    text-align: center;
}

.jnb-pagination {
    margin-top: 38px;
    text-align: center;
}

.jnb-pagination .nav-links {
    display: inline-flex;
    gap: 7px;
}

.jnb-pagination .page-numbers {
    display: grid;
    min-width: 38px;
    height: 38px;
    padding: 0 11px;
    place-items: center;
    border: 1px solid var(--jnb-line);
    border-radius: 5px;
    background: var(--jnb-paper);
}

.jnb-pagination .current {
    color: #fff;
    background: var(--jnb-navy);
}

.jnb-site-footer {
    padding: 54px 24px 36px;
    color: rgba(255, 255, 255, .78);
    background: var(--jnb-navy);
}

.jnb-footer-inner {
    width: min(100%, 1120px);
    margin: 0 auto;
    text-align: center;
}

.jnb-footer-brand {
    color: #fff;
}

.jnb-footer-brand .jnb-brand-logo {
    width: 260px;
    border-color: rgba(255, 255, 255, .28);
}

.jnb-footer-brand .jnb-brand-mark {
    color: var(--jnb-navy);
    background: var(--jnb-ivory);
}

.jnb-footer-inner > p {
    margin: 15px 0 22px;
    font-family: var(--jnb-serif);
}

.jnb-footer-inner nav {
    display: flex;
    margin-bottom: 24px;
    justify-content: center;
    gap: 28px;
    font-size: 13px;
}

.jnb-footer-inner small {
    font-size: 11px;
}

/* Single article */
.jnb-single {
    padding: 30px 24px 100px;
}

.jnb-breadcrumbs {
    display: flex;
    overflow: hidden;
    width: min(100%, 920px);
    margin: 0 auto 36px;
    align-items: center;
    gap: 12px;
    color: var(--jnb-muted);
    font-size: 12px;
    white-space: nowrap;
}

.jnb-breadcrumbs > span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
}

.jnb-article {
    width: min(100%, 920px);
    margin: 0 auto;
}

.jnb-article-header {
    margin-bottom: 22px;
}

.jnb-article-meta {
    display: flex;
    margin-bottom: 14px;
    align-items: center;
    gap: 24px;
    font-size: 13px;
}

.jnb-article-meta a {
    color: var(--jnb-red);
    font-weight: 700;
}

.jnb-article-meta time {
    color: var(--jnb-muted);
}

.jnb-article-header h1 {
    margin: 0;
    font-family: var(--jnb-serif);
    font-size: clamp(34px, 4.5vw, 54px);
    font-weight: 600;
    letter-spacing: .035em;
    line-height: 1.4;
}

.jnb-article-subtitle {
    margin: 3px 0 22px;
    font-family: var(--jnb-serif);
    font-size: clamp(17px, 2vw, 22px);
    font-weight: 600;
    letter-spacing: .08em;
}

.jnb-hero-image {
    width: 100%;
    aspect-ratio: 16 / 7;
    border-radius: 12px;
    box-shadow: 0 15px 38px rgba(37, 42, 45, .11);
}

.jnb-key-points,
.jnb-toc,
.jnb-article-content,
.jnb-bottom-cta {
    width: min(100%, 760px);
    margin-right: auto;
    margin-left: auto;
}

.jnb-key-points {
    display: grid;
    margin-top: 22px;
    margin-bottom: 30px;
    padding: 17px 22px;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 18px;
    border: 1px solid rgba(179, 74, 53, .25);
    border-radius: 8px;
    background: rgba(255, 253, 248, .72);
}

.jnb-bulb {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(145deg, #d35b3e, var(--jnb-red));
    font-family: var(--jnb-serif);
    font-size: 23px;
    font-weight: 700;
}

.jnb-key-points h2 {
    margin: 0 0 3px;
    color: var(--jnb-red);
    font-size: 14px;
}

.jnb-key-points p {
    margin: 0;
    color: #51575b;
    font-size: 13px;
    line-height: 1.75;
}

.jnb-toc {
    margin-bottom: 42px;
    padding: 0 32px 18px;
    border: 1px solid rgba(23, 53, 77, .34);
    border-radius: 7px;
    background: rgba(255, 255, 255, .44);
}

.jnb-toc h2 {
    display: grid;
    margin: -17px 0 4px;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
    color: var(--jnb-navy);
    font-family: var(--jnb-serif);
    font-size: 20px;
    text-align: center;
}

.jnb-toc h2 span {
    height: 1px;
    background: rgba(23, 53, 77, .35);
}

.jnb-toc ol {
    margin: 0;
    padding: 0;
    list-style-position: inside;
}

.jnb-toc li {
    border-bottom: 1px dotted rgba(23, 53, 77, .2);
    color: var(--jnb-navy);
    font-family: var(--jnb-serif);
    font-size: 14px;
    font-weight: 600;
}

.jnb-toc li:last-child {
    border-bottom: 0;
}

.jnb-toc li a {
    display: inline-flex;
    width: calc(100% - 26px);
    padding: 6px 0;
    align-items: center;
    justify-content: space-between;
}

.jnb-toc li a span {
    font-size: 20px;
}

.jnb-article-content {
    color: #34393c;
    font-size: 16px;
    line-height: 2.05;
}

.jnb-article-content > p,
.jnb-article-content > ul,
.jnb-article-content > ol {
    margin-top: 0;
    margin-bottom: 28px;
}

.jnb-article-content h2 {
    position: relative;
    margin: 58px 0 24px;
    padding: 0 0 13px 20px;
    border-bottom: 1px solid rgba(23, 53, 77, .24);
    color: var(--jnb-ink);
    font-family: var(--jnb-serif);
    font-size: clamp(25px, 3vw, 32px);
    font-weight: 600;
    line-height: 1.55;
}

.jnb-article-content h2::before {
    position: absolute;
    top: .18em;
    bottom: .38em;
    left: 0;
    width: 4px;
    content: "";
    border-radius: 99px;
    background: var(--jnb-red);
}

.jnb-article-content h3 {
    margin: 40px 0 18px;
    color: var(--jnb-navy);
    font-family: var(--jnb-serif);
    font-size: 23px;
}

.jnb-article-content ul,
.jnb-article-content ol {
    padding: 21px 24px 21px 48px;
    border-left: 4px solid var(--jnb-navy);
    background: rgba(255, 255, 255, .62);
}

.jnb-article-content .wp-block-buttons {
    display: flex;
    margin: 34px 0;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.jnb-article-content .wp-block-button__link {
    display: inline-flex;
    min-height: 48px;
    padding: 11px 24px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--jnb-navy);
    border-radius: 6px;
    color: #fff;
    background: var(--jnb-navy);
    font-weight: 700;
}

.jnb-article-content .is-style-outline .wp-block-button__link {
    color: var(--jnb-navy);
    background: transparent;
}

.fukuda-lecture-meta {
    display: flex;
    margin-bottom: 30px;
    align-items: center;
    gap: 12px;
    color: var(--jnb-muted);
    font-size: 13px;
}

.fukuda-lecture-meta span {
    padding: 3px 11px;
    border: 1px solid rgba(179, 74, 53, .34);
    border-radius: 99px;
    color: var(--jnb-red);
    background: rgba(179, 74, 53, .05);
    font-size: 11px;
    font-weight: 700;
}

.fukuda-lecture-transcript p {
    margin: 0 0 18px;
}

.fukuda-lecture-materials > p {
    color: var(--jnb-muted);
}

.fukuda-lecture-sheets {
    display: grid;
    margin-top: 28px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.fukuda-lecture-sheet {
    margin: 0;
    padding: 12px;
    border: 1px solid var(--jnb-line);
    border-radius: 6px;
    background: #fff;
    box-shadow: var(--jnb-shadow);
}

.fukuda-lecture-sheet img {
    width: 100%;
    height: auto;
}

.fukuda-lecture-sheet figcaption {
    padding: 9px 2px 0;
    color: var(--jnb-muted);
    font-size: 11px;
    text-align: center;
}

.fukuda-lecture-back {
    margin-top: 44px;
    text-align: center;
}

.fukuda-lecture-back a {
    display: inline-flex;
    padding: 12px 20px;
    border: 1px solid var(--jnb-navy);
    border-radius: 5px;
    align-items: center;
    gap: 28px;
    color: var(--jnb-navy);
    font-weight: 700;
}

.jnb-inline-cta,
.jnb-bottom-cta {
    position: relative;
    overflow: hidden;
    margin-top: 48px;
    margin-bottom: 48px;
    padding: 28px 30px;
    border-radius: 10px;
    color: #fff;
    background:
        linear-gradient(120deg, rgba(255, 255, 255, .045) 25%, transparent 25%) 0 0 / 24px 24px,
        var(--jnb-navy);
}

.jnb-inline-cta {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
}

.jnb-inline-cta span {
    color: #f1c2b7;
    font-size: 12px;
    font-weight: 700;
}

.jnb-inline-cta h2,
.jnb-bottom-cta h2 {
    margin: 3px 0;
    color: #fff;
    font-family: var(--jnb-serif);
    font-size: 24px;
}

.jnb-inline-cta h2::before {
    display: none;
}

.jnb-inline-cta p,
.jnb-bottom-cta p {
    margin: 3px 0 0;
    color: rgba(255, 255, 255, .76);
    font-size: 13px;
}

.jnb-inline-cta > a,
.jnb-bottom-cta > a {
    display: inline-flex;
    min-height: 52px;
    padding: 12px 22px;
    align-items: center;
    justify-content: center;
    gap: 18px;
    border: 1px solid rgba(255, 255, 255, .82);
    border-radius: 6px;
    color: #fff;
    background: var(--jnb-red);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.jnb-bottom-cta {
    margin-top: 70px;
    padding: 38px;
    text-align: center;
}

.jnb-bottom-cta h2 {
    margin: 5px 0 20px;
    font-size: 30px;
}

.jnb-related {
    margin-top: 78px;
    padding-top: 44px;
    border-top: 1px solid var(--jnb-line);
}

.jnb-related > h2 {
    margin: 0 0 24px;
    font-family: var(--jnb-serif);
    font-size: 30px;
    font-weight: 600;
}

@media (max-width: 1180px) {
    .jnb-desktop-nav {
        gap: 18px;
        font-size: 13px;
    }
    .jnb-desktop-nav > a:nth-child(3),
    .jnb-desktop-nav > a:nth-child(4) {
        display: none;
    }
}

@media (max-width: 900px) {
    .jnb-desktop-nav {
        display: none;
    }
    .jnb-mobile-nav {
        display: block;
    }
    .jnb-archive {
        width: min(100% - 32px, 720px);
        padding-top: 44px;
    }
    .jnb-archive-hero {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .jnb-archive-heading {
        padding: 10px 0 22px;
        text-align: center;
    }
    .jnb-heading-line {
        margin-right: auto;
        margin-left: auto;
    }
    .jnb-piece-pair {
        right: 12%;
        bottom: -18px;
        transform: scale(.8) rotate(-7deg);
    }
    .jnb-featured-card {
        grid-template-columns: 1fr;
    }
    .jnb-featured-image {
        aspect-ratio: 16 / 8.5;
    }
    .jnb-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .jnb-inline-cta {
        grid-template-columns: 1fr;
    }
    .jnb-inline-cta > a {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .admin-bar .jnb-site-header {
        top: 46px;
    }
    .jnb-header-inner {
        width: calc(100% - 28px);
        min-height: 64px;
    }
    .jnb-brand {
        gap: 9px;
        font-size: 16px;
    }
    .jnb-brand-logo {
        width: 188px;
    }
    .fukuda-lecture-sheets {
        grid-template-columns: 1fr;
    }
    .jnb-brand-mark {
        width: 29px;
        height: 33px;
        font-size: 14px;
    }
    .jnb-archive {
        padding-bottom: 72px;
    }
    .jnb-archive-heading h1 {
        font-size: 38px;
    }
    .jnb-featured-body {
        padding: 25px 22px;
    }
    .jnb-featured-body h2 {
        font-size: 25px;
    }
    .jnb-category-filter {
        justify-content: flex-start;
    }
    .jnb-category-filter a {
        min-width: 0;
        padding: 7px 13px;
    }
    .jnb-card-grid {
        grid-template-columns: 1fr;
    }
    .jnb-subscribe-cta {
        grid-template-columns: auto 1fr;
        padding: 22px;
    }
    .jnb-subscribe-cta > a {
        grid-column: 1 / -1;
        text-align: center;
    }
    .jnb-single {
        padding: 22px 16px 72px;
    }
    .jnb-breadcrumbs {
        margin-bottom: 25px;
    }
    .jnb-article-header h1 {
        font-size: 32px;
        line-height: 1.48;
    }
    .jnb-article-subtitle {
        font-size: 17px;
    }
    .jnb-hero-image {
        aspect-ratio: 4 / 3;
    }
    .jnb-key-points {
        grid-template-columns: 1fr;
        padding: 19px;
    }
    .jnb-bulb {
        width: 38px;
        height: 38px;
    }
    .jnb-toc {
        padding: 0 19px 15px;
    }
    .jnb-toc li {
        font-size: 13px;
    }
    .jnb-article-content {
        font-size: 15px;
        line-height: 2;
    }
    .jnb-article-content h2 {
        margin-top: 46px;
        padding-left: 14px;
        font-size: 24px;
    }
    .jnb-inline-cta,
    .jnb-bottom-cta {
        padding: 25px 20px;
    }
    .jnb-inline-cta h2,
    .jnb-bottom-cta h2 {
        font-size: 23px;
    }
    .jnb-footer-inner nav {
        gap: 16px;
        flex-wrap: wrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    .jena-shogi-blog *,
    .jena-shogi-blog *::before,
    .jena-shogi-blog *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}

/* Fukuda video lesson archive */
.fvl-article { --fvl-navy:#17354d; --fvl-red:#ae4634; --fvl-cream:#f7f2e8; --fvl-line:#e4dacb; color:#293036; }
.fvl-lead { margin: 0 0 48px; padding: 42px; display:grid; grid-template-columns:1fr auto; gap:30px; align-items:center; color:#fff; background:linear-gradient(135deg,#17354d,#244d69); border-radius:10px; overflow:hidden; position:relative; }
.fvl-lead::after { content:"将"; position:absolute; right:15px; bottom:-55px; color:rgba(255,255,255,.05); font-family:var(--jnb-serif); font-size:180px; line-height:1; }
.fvl-lead > * { grid-column:1; position:relative; z-index:1; }
.fvl-kicker { margin:0 0 8px!important; color:var(--fvl-red); font-family:Georgia,serif; font-size:11px; font-weight:700; letter-spacing:.2em; }
.fvl-lead .fvl-kicker { color:#e5b4a2; }
.fvl-lead h2 { margin:0 0 14px!important; padding:0!important; color:#fff!important; border:0!important; font-size:30px!important; }
.fvl-lead h2::before { display:none!important; }
.fvl-lead > p:nth-of-type(2) { margin:0; color:rgba(255,255,255,.78); font-size:14px; }
.fvl-stats { grid-column:2; grid-row:1 / 4; display:grid; grid-template-columns:repeat(3,92px); gap:9px; position:relative; z-index:1; }
.fvl-stats > div { min-height:92px; padding:13px 8px; display:grid; place-content:center; color:rgba(255,255,255,.72); background:rgba(255,255,255,.09); border:1px solid rgba(255,255,255,.18); border-radius:6px; font-size:10px; text-align:center; }
.fvl-stats strong { display:block; color:#fff; font-family:var(--jnb-serif); font-size:27px; line-height:1.25; }
.fvl-article h2 { margin-top:58px; }
.fvl-breakdown { margin:25px 0 45px; display:grid; grid-template-columns:repeat(4,1fr); gap:10px; }
.fvl-breakdown > div { padding:18px 13px; background:var(--fvl-cream); border:1px solid var(--fvl-line); border-radius:6px; text-align:center; }
.fvl-breakdown > div > span { width:32px; height:4px; margin:0 auto 12px; display:block; background:#738ba0; border-radius:2px; }
.fvl-breakdown .is-green { background:#6e9a7a; }.fvl-breakdown .is-deep-green { background:#3e776b; }.fvl-breakdown .is-orange { background:#c9794f; }.fvl-breakdown .is-purple { background:#806887; }.fvl-breakdown .is-gold { background:#b69452; }.fvl-breakdown .is-gray { background:#8a8f91; }
.fvl-breakdown strong { display:block; color:var(--fvl-navy); font-family:var(--jnb-serif); font-size:15px; }
.fvl-breakdown b { display:block; margin-top:4px; color:var(--fvl-red); font-size:20px; }
.fvl-index { margin:55px 0; }
.fvl-index > p:not(.fvl-kicker) { color:#68737a; font-size:13px; }
.fvl-index ol { margin:25px 0 45px; padding:0; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px 14px; counter-reset:fvl; list-style:none; }
.fvl-index li { margin:0; counter-increment:fvl; min-width:0; }
.fvl-index a { min-height:86px; padding:12px 36px 12px 48px; display:grid; grid-template-columns:auto 1fr; gap:2px 10px; align-content:center; position:relative; color:#3d474e; background:#fff; border:1px solid var(--fvl-line); border-radius:5px; font-size:12px; line-height:1.45; transition:border-color .2s,transform .2s; }
.fvl-index a::before { content:counter(fvl,decimal-leading-zero); position:absolute; left:13px; top:15px; color:var(--fvl-red); font-family:Georgia,serif; font-size:11px; font-weight:700; }
.fvl-index time { color:#7a858b; font-size:10px; }
.fvl-category { color:var(--fvl-red); font-size:10px; font-weight:700; text-align:right; }
.fvl-index a strong { grid-column:1 / -1; color:var(--fvl-navy); font-size:12px; }
.fvl-index-arrow { position:absolute; right:12px; top:50%; color:var(--fvl-red); transform:translateY(-50%); }
.fvl-index a:hover { border-color:var(--fvl-red); transform:translateY(-1px); }
.fvl-document { margin-top:50px; }
.fvl-document details { background:var(--fvl-cream); border:1px solid var(--fvl-line); border-radius:8px; }
.fvl-document summary { padding:20px 24px; color:var(--fvl-navy); cursor:pointer; font-weight:700; list-style-position:inside; }
.fvl-document summary::marker { color:var(--fvl-red); }
.fvl-document details[open] summary { border-bottom:1px solid var(--fvl-line); }
.fvl-document > p:not(.fvl-kicker) { color:#68737a; font-size:13px; }
.fvl-document details { margin-top:24px; }
.fvl-page-stack { padding:20px; display:grid; gap:24px; }
.fvl-page { margin:0; padding:12px; background:#fff; border:1px solid #ddd3c4; border-radius:5px; box-shadow:0 10px 30px rgba(51,45,36,.07); scroll-margin-top:95px; }
.fvl-page img { width:100%; max-width:900px; height:auto; margin:auto; display:block; }
.fvl-page figcaption { padding:9px 4px 0; color:#7b858b; font-size:10px; text-align:center; }

@media (max-width:760px) {
  .fvl-lead { padding:28px 22px; grid-template-columns:1fr; }
  .fvl-stats { grid-column:1; grid-row:auto; grid-template-columns:repeat(3,1fr); }
  .fvl-lead h2 { font-size:24px!important; }
  .fvl-breakdown { grid-template-columns:repeat(2,1fr); }
  .fvl-index ol { grid-template-columns:1fr; }
  .fvl-document summary { padding:17px; }
  .fvl-page-stack { padding:10px; gap:14px; }
  .fvl-page { padding:6px; }
}

/* Imported note articles */
.jna-note-import { color:#333c42; }
.jna-note-import > :first-child { margin-top:0; }
.jna-note-import > p { margin:1.25em 0; }
.jna-note-import > h2 { margin-top:2.4em; }
.jna-note-import > h3 { margin:2em 0 .8em; color:var(--jnb-navy); font-family:var(--jnb-serif); font-size:22px; }
.jna-note-import > figure { margin:32px auto; }
.jna-note-import > figure img { width:auto; max-width:100%; height:auto; margin:auto; display:block; border-radius:5px; box-shadow:0 12px 35px rgba(37,43,47,.08); }
.jna-note-import > figure figcaption { margin-top:8px; color:#7b858b; font-size:11px; text-align:center; }
.jna-note-import > blockquote { margin:30px 0; padding:22px 25px; color:#48545b; background:#f7f2e8; border-left:4px solid var(--jnb-red); }
.jna-note-import > p a, .jna-note-import > h2 a, .jna-note-import > h3 a { color:var(--jnb-red); text-decoration:underline; text-underline-offset:3px; }
.jna-note-import > iframe { max-width:100%; }
.jna-note-source { margin-top:65px; padding:18px 22px; display:flex; align-items:center; justify-content:space-between; gap:20px; color:#6f797f; background:#f7f2e8; border:1px solid #e4dacb; border-radius:6px; font-size:12px; }
.jna-note-source span { font-weight:700; }
.jna-note-source a { color:var(--jnb-red); font-weight:700; }

@media (max-width:600px) {
  .jna-note-import > h3 { font-size:19px; }
  .jna-note-source { align-items:flex-start; flex-direction:column; gap:5px; }
}