@font-face {
    font-family: 'Digits';
    src: local('Times New Roman'), local('Georgia'), local('Arial');
    unicode-range: U+0030-0039, U+002B, U+002D, U+002E, U+002F, U+0025,
                   U+00B2, U+00B3, U+00B9, U+2070-209F, U+2150-218F,
                   U+2212, U+00D7, U+00F7, U+221A, U+2260, U+2264, U+2265,
                   U+FF10-FF19, U+FF0B, U+FF0D, U+FF0E, U+FF0F, U+FF05;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: 'Digits';
    src: local('Times New Roman Bold'), local('Georgia Bold'), local('Arial Bold');
    unicode-range: U+0030-0039, U+002B, U+002D, U+002E, U+002F, U+0025,
                   U+00B2, U+00B3, U+00B9, U+2070-209F, U+2150-218F,
                   U+2212, U+00D7, U+00F7, U+221A, U+2260, U+2264, U+2265,
                   U+FF10-FF19, U+FF0B, U+FF0D, U+FF0E, U+FF0F, U+FF05;
    font-weight: 600 700;
    font-display: swap;
}

:root {
    /* Refined Editorial Palette */
    --color-primary: #151a22; /* Deeper Navy/Charcoal */
    --color-accent: #b59250;  /* Sophisticated Muted Gold */
    --color-bg: #fcfbf8;      /* Warm Alabaster */
    --color-bg-sub: #ffffff;  /* Pure White */
    --color-text-main: #2b303a;
    --color-text-light: #6a7382;
    --color-border: #e6e2d8;

    --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
    --container-width: 1100px;
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.08);
    --radius-main: 6px;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.8;
    overflow-x: hidden;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23b59250' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-accent);
}

/* Accessibility: clear keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Utility for semantic headings hidden visually */
.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Header */
.site-header {
    background-color: rgba(252, 251, 248, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
}

.site-logo {
    width: 34px;
    height: 34px;
    object-fit: contain;
    display: block;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-primary);
}

.main-nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.main-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.main-nav a:hover::after {
    width: 100%;
}

.header-right {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.lang-switch {
    display: inline-flex;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    overflow: hidden;
    background: #fff;
}

.lang-switch a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    padding: 0.28rem 0.55rem;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--color-text-light);
}

.lang-switch a.active {
    background: var(--color-primary);
    color: #fff;
}

.search-toggle, .mobile-menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--color-primary);
}

.search-toggle svg,
.search-form button svg {
    display: block;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
}
.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--color-primary);
}

/* Featured Area */
.featured-area {
    padding: 3rem 2rem;
    background-color: transparent;
}

.featured-container {
    max-width: var(--container-width);
    margin: 0 auto;
}

.featured-mini-grid {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.featured-mini-card {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0.8rem;
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-mini-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.featured-mini-thumb {
    min-height: 96px;
    background-size: cover;
    background-position: center;
}

.featured-mini-body {
    padding: 0.65rem 0.75rem 0.65rem 0;
}

.featured-mini-body span {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--color-accent);
    margin-bottom: 0.2rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.featured-mini-body p {
    font-size: 0.9rem;
    line-height: 1.35;
    color: var(--color-text-main);
    font-family: var(--font-serif);
    font-weight: 600;
}

.featured-post {
    position: relative;
    border-radius: var(--radius-main);
    overflow: hidden;
    height: 500px;
    display: flex;
    align-items: flex-end;
    box-shadow: var(--shadow-soft);
}

.featured-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

.featured-post:hover .featured-image {
    transform: scale(1.03);
}

.featured-content {
    position: relative;
    z-index: 1;
    background: linear-gradient(to top, rgba(21, 26, 34, 0.9), transparent);
    width: 100%;
    padding: 3rem;
    color: #fff;
}

.featured-content .category-tag {
    background-color: var(--color-accent);
    color: #fff;
    padding: 0.3rem 0.8rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 4px;
    margin-bottom: 1rem;
    display: inline-block;
}

.featured-content h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.featured-content h2 a:hover {
    color: #fff;
    text-decoration: underline;
}

.post-meta {
    font-size: 0.9rem;
    opacity: 0.9;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.post-meta-icon {
    display: inline-block;
    vertical-align: middle;
}

/* Layout Container */
.container {
    max-width: var(--container-width);
    margin: 3rem auto;
    padding: 0 2rem;
}

.blog-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 4rem;
    align-items: start;
}

.main-content {
    min-width: 0;
}

.sidebar {
    position: sticky;
    top: 5.5rem;
}

/* Main Content */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    gap: 1.5rem;
}

.section-header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-primary);
    border-left: 4px solid var(--color-accent);
    padding-left: 1rem;
}

.filter-tabs {
    display: inline-flex;
    gap: 0.55rem;
    flex-wrap: wrap;
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

.filter-groups {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-end;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--color-text-light);
    padding: 0.55rem 1.15rem;
    position: relative;
    transition: all 0.3s ease;
    font-size: 1rem;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.filter-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-accent);
    background-color: rgba(181, 146, 80, 0.05);
}

.filter-btn.active {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-soft);
}

.filter-btn.active::after {
    display: none;
}

.genre-filter-tabs {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

.genre-filter-btn {
    background-color: transparent;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0.4rem 0.9rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    cursor: pointer;
    color: #666;
    transition: all 0.2s ease;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.genre-filter-btn:hover {
    background-color: transparent;
    color: #333;
    border-color: #999;
}

.genre-filter-btn.active {
    background-color: var(--color-text-main);
    color: #fff;
    border-color: var(--color-text-main);
    box-shadow: none;
}

/* Blog List Items - Upgraded */
.blog-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem 1.8rem;
}

.blog-item {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 0;
}

.blog-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.blog-thumb-link {
    display: block;
    width: 100%;
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
}

.blog-thumb-wrapper {
    width: 100%;
    height: 0;
    padding-top: 56.25%;
    border-radius: 0;
    box-shadow: none;
    position: relative;
    overflow: hidden;
}

.blog-item:hover .blog-thumb-wrapper {
    box-shadow: none;
}

.blog-thumb-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.blog-item:hover .blog-thumb-img {
    transform: scale(1.08);
}

.blog-content {
    display: flex;
    flex-direction: column;
    padding: 1.6rem 1.8rem;
    flex: 1;
}

.blog-meta-top {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.blog-category {
    color: var(--color-accent);
    text-transform: uppercase;
}

.blog-separator {
    display: inline-block;
    width: 4px;
    height: 4px;
    background-color: var(--color-border);
    border-radius: 50%;
    margin: 0 0.8rem;
}

.blog-genre {
    color: var(--color-text-light);
    text-transform: uppercase;
}

.blog-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
    line-height: 1.45;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-primary);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.blog-title a {
    background-image: linear-gradient(var(--color-accent), var(--color-accent));
    background-position: 0% 100%;
    background-repeat: no-repeat;
    background-size: 0% 1px;
    transition: background-size 0.3s ease, color 0.3s ease;
    padding-bottom: 2px;
}

.blog-item:hover .blog-title a {
    background-size: 100% 1px;
    color: var(--color-primary);
}

.blog-excerpt {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex: 1;
}

.blog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: auto;
}

.blog-author-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-author-label {
    color: #bbb;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-author {
    color: var(--color-primary);
    font-weight: 600;
}

.blog-date {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1rem;
    color: var(--color-text-light);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    margin-top: 3.5rem;
    grid-column: 1 / -1;
}

.page-num {
    width: 38px;
    height: 38px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    font-weight: 600;
    color: var(--color-text-light);
    background: #fff;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    padding: 0;
}

.page-num.active, .page-num:hover {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.next-btn {
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Sidebar */
.widget {
    margin-bottom: 3rem;
}

.widget-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    color: var(--color-primary);
}

/* Profile Widget */
.profile-content {
    text-align: center;
    background-color: var(--color-bg-sub);
    padding: 2rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    box-shadow: var(--shadow-soft);
}

.profile-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
}

.profile-name {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.profile-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.social-icons a {
    margin: 0 5px;
    font-size: 1.1rem;
    color: var(--color-text-light);
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--color-accent);
}

.social-icons a svg {
    display: inline-block;
    vertical-align: middle;
}

/* Search Widget */
.search-form {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
}

.search-form input {
    flex: 1;
    padding: 0.8rem;
    border: none;
    outline: none;
    font-family: var(--font-sans);
}

.search-form button {
    background-color: #f8f8f8;
    border: none;
    padding: 0 1rem;
    cursor: pointer;
    color: var(--color-text-light);
    transition: background 0.2s ease;
}

.search-form button:hover {
    background-color: #eee;
    color: var(--color-primary);
}

.search-widget.search-jump-highlight .search-form {
    box-shadow: 0 0 0 3px rgba(192, 139, 92, 0.28);
    border-color: var(--color-accent);
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

/* Popular Posts Widget */
.popular-list {
    list-style: none;
}

.popular-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.2rem;
    align-items: center;
}

.popular-thumb {
    width: 70px;
    height: 70px;
    border-radius: 4px;
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

.popular-info h5 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 0.3rem;
    font-family: var(--font-serif);
    font-weight: 600;
}

.popular-date {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* Category Widget */
.category-widget ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.category-widget li {
    border-bottom: 1px solid var(--color-border);
}

.category-widget a {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    font-size: 0.95rem;
}

.category-widget a.active-era-link {
    color: var(--color-accent);
    font-weight: 700;
}

.category-widget span {
    color: var(--color-text-light);
    font-size: 0.85rem;
}

.sidebar-sub-title {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    font-weight: 700;
    border-left: 3px solid var(--color-accent);
    padding-left: 0.5rem;
}

/* Newsletter Widget */
.newsletter-widget {
    background-color: #f9f9f9;
    color: var(--color-text-main);
    padding: 2rem;
    border-radius: var(--radius-main);
}

.newsletter-widget .widget-title {
    color: var(--color-primary);
    border-bottom-color: var(--color-accent);
}

.newsletter-widget p {
    color: var(--color-text-main);
    margin-bottom: 1rem;
}

.donate-widget {
    background-color: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    padding: 1.2rem;
    box-shadow: var(--shadow-soft);
}

.donate-widget .widget-title {
    margin-bottom: 0.8rem;
}

.donate-widget p {
    color: var(--color-text-main);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.9rem;
}

.donate-button {
    display: block;
    width: fit-content;
    margin: 0 auto;
    transition: transform 0.25s ease;
}

.donate-button:hover {
    transform: scale(1.05);
}

.sidebar-newsletter input {
    width: 100%;
    padding: 0.8rem;
    margin: 1rem 0;
    border: 1px solid #ddd;
    background: #fff;
    color: var(--color-text-main);
    border-radius: 4px;
}

.sidebar-newsletter input::placeholder {
    color: var(--color-text-light);
}

.sidebar-newsletter button {
    width: 100%;
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    padding: 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
}

.sidebar-newsletter button:hover {
    background-color: #2b3648;
}

/* Footer */
.site-footer {
    background-color: var(--color-primary);
    color: rgba(255,255,255,0.8);
    padding: 4rem 0 0;
    margin-top: 4rem;
}

.footer-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem 4rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-col h5 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    font-family: var(--font-serif);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.8rem;
}

.footer-col a {
    color: rgba(255,255,255,0.78);
}

.footer-col a:hover {
    color: #fff;
}

.copyright {
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    padding: 1.5rem;
    color: rgba(255,255,255,0.58);
    font-size: 0.85rem;
}

/* Article Content Styles */
.article-category {
    font-family: 'Digits', var(--font-sans);
    color: var(--color-accent);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.article-image {
    width: 100%;
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-main);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-soft);
}

.article-text {
    line-height: 2.02;
    color: var(--color-text-main);
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.article-text .article-intro {
    font-size: 1.15rem;
    color: var(--color-text-main);
    border-left: 3px solid var(--color-accent);
    padding-left: 1.5rem;
    margin-bottom: 2.5rem;
    line-height: 2.02;
    font-family: 'Digits', var(--font-serif);
}

.article-text .article-section {
    margin-bottom: 2.5rem;
}

.article-text h3 {
    font-family: 'Digits', var(--font-serif);
    font-size: 1.6rem;
    line-height: 1.55;
    color: var(--color-primary);
    margin-top: 3.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.article-text h3.article-subheading-with-top {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
}

.article-subheading-text {
    min-width: 0;
}

.back-to-top-inline {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.26rem 0.58rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: #fff;
    color: var(--color-text-light);
    font-size: 0.72rem;
    font-family: var(--font-sans);
    font-weight: 700;
    letter-spacing: 0.03em;
    line-height: 1;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.back-to-top-inline:hover {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.article-text h4 {
    font-family: 'Digits', var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.7;
    font-weight: 700;
    color: var(--color-primary);
    margin: 2.8rem 0 1.2rem;
    padding-left: 0.8rem;
    border-left: 3px solid var(--color-accent);
}

.article-text p {
    font-family: 'Digits', var(--font-serif);
    margin-bottom: 1.8rem;
    text-align: justify;
    text-justify: inter-ideograph;
}

.article-text strong,
.article-text b {
    background: linear-gradient(transparent 70%, rgba(181, 146, 80, 0.25) 70%);
    font-weight: 700;
    color: var(--color-primary);
}

.article-text a:not([class]) {
    color: var(--color-text-main);
    border-bottom: 1px solid var(--color-accent);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.article-text a:not([class]):hover {
    background-color: rgba(181, 146, 80, 0.1);
    color: var(--color-primary);
}

.article-text ul:not([class]),
.article-text ol:not([class]) {
    margin: 1.5rem 0 2rem;
    padding-left: 1.8rem;
    line-height: 1.95;
}

.article-text ul:not([class]) li,
.article-text ol:not([class]) li {
    font-family: 'Digits', var(--font-serif);
    margin-bottom: 0.8rem;
}

.article-text .book-list {
    list-style: none;
    padding: 0;
}

.article-text .book-list li {
    font-family: 'Digits', var(--font-serif);
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--color-border);
    line-height: 1.8;
}

.article-text .book-list li:last-child {
    border-bottom: none;
}

.article-text .article-quotes {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.article-text .article-quotes h3 {
    border-bottom: none;
    margin-bottom: 1.5rem;
}

.article-text blockquote {
    font-family: 'Digits', var(--font-serif);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-text-main);
    border-left: 3px solid var(--color-accent);
    padding: 1rem 1.5rem;
    margin: 1rem 0;
    background-color: #fff;
    border-radius: 0 4px 4px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.article-text blockquote cite {
    font-family: 'Digits', var(--font-serif);
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
    font-style: normal;
}

.article-subtitle {
    font-family: 'Digits', var(--font-serif);
    font-size: 1rem;
    color: var(--color-text-light);
    font-style: italic;
    line-height: 1.7;
    margin-top: 0.3rem;
}

/* Article Template Lists */
.article-points {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
}

.article-points li {
    padding: 0.8rem 1rem 0.8rem 1.3rem;
    margin-bottom: 0.6rem;
    background: #fff;
    border-left: 3px solid var(--color-accent);
    border-radius: 0 6px 6px 0;
    line-height: 1.9;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}

.timeline-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
    position: relative;
}

.timeline-list::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 0.6rem;
    bottom: 0.6rem;
    width: 2px;
    background: var(--color-accent);
    opacity: 0.3;
}

.timeline-list li {
    padding: 0.5rem 0 0.5rem 2rem;
    position: relative;
    line-height: 1.8;
}

.timeline-list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 0.85rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
}

.question-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
    counter-reset: question-counter;
}

.question-list li {
    counter-increment: question-counter;
    padding: 0.9rem 1rem 0.9rem 3rem;
    margin-bottom: 0.5rem;
    background: #fff;
    border-radius: 6px;
    position: relative;
    line-height: 1.9;
    font-style: italic;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.question-list li::before {
    content: 'Q' counter(question-counter);
    position: absolute;
    left: 0.8rem;
    top: 0.9rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    font-style: normal;
}

.reference-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0.5rem;
}

.reference-list li {
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--color-border);
    line-height: 1.8;
    font-size: 0.95rem;
}

.reference-list li:last-child {
    border-bottom: none;
}

/* Static article page */
.article-page {
    background: var(--color-bg-sub);
    padding-bottom: 2rem;
    border-radius: var(--radius-main);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.article-page h1 {
    font-family: 'Digits', var(--font-serif);
    font-size: 2.4rem;
    line-height: 1.35;
    letter-spacing: 0.03em;
    margin: 0.8rem 0 0.6rem;
    color: var(--color-primary);
}

.article-page .article-meta {
    font-family: 'Digits', var(--font-serif);
    color: var(--color-text-light);
    margin-bottom: 2rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1.5rem;
}

.article-toc {
    margin: 0 0 4rem;
    max-width: 427px;
    margin-left: auto;
    margin-right: auto;
}

.article-toc-box {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    background: var(--color-bg-sub);
    box-shadow: var(--shadow-soft);
    padding: 1rem 1.05rem 0.95rem;
}

.article-toc-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 0.8rem;
    border-left: 3px solid var(--color-accent);
    padding-left: 0.6rem;
}

.article-toc-list,
.article-toc-sublist {
    list-style: none;
    margin: 0;
    padding: 0;
}

.article-toc-sublist {
    margin-top: 0.38rem;
    padding-left: 1.05rem;
}

.toc-item {
    margin-bottom: 0.46rem;
}

.toc-item a {
    display: inline-block;
    color: var(--color-text-main);
    font-size: 0.9rem;
    line-height: 1.55;
    border-bottom: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.toc-item a:hover {
    color: var(--color-primary);
    border-color: var(--color-accent);
}

.toc-h3 > a {
    font-weight: 600;
}

.toc-h4 a {
    color: var(--color-text-light);
    font-size: 0.84rem;
}

.article-page .article-text {
    max-width: 100%;
    font-family: 'Digits', "Noto Serif JP", "Noto Sans JP", serif;
    font-size: 1.08rem;
    line-height: 2.02;
    letter-spacing: 0.01em;
}

.article-page .article-text .article-section {
    font-family: 'Digits', var(--font-serif);
    font-size: 1.15rem;
    line-height: 2.02;
}

.article-page .article-text .article-section p,
.article-page .article-text .article-section li {
    font-family: inherit;
    line-height: inherit;
}

/* Ruby表示時はさらに行間を確保して可読性を上げる */
body:not(.ruby-off) .article-page .article-text,
body:not(.ruby-off) .article-page .article-text p,
body:not(.ruby-off) .article-page .article-text li,
body:not(.ruby-off) .article-page .article-text blockquote {
    line-height: 2.02;
}

/* Ruby と両端揃えの相性対策: 不自然な字間拡張を防ぐ */
.article-page .article-text p,
.article-page .article-text li,
.article-page .article-text blockquote {
    text-align: left;
    text-justify: auto;
}

/* ── Ruby annotations ── */
ruby {
    ruby-position: over;
}

.article-page .article-text ruby {
    line-height: 1.6;
    ruby-align: center;
}

rt {
    font-size: 0.5em;
    color: var(--color-text-light);
    font-style: normal;
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1;
    /* Adjust ruby-to-base gap in a browser-compatible way */
    padding-bottom: 0.1em;
    user-select: none;
}

.article-text blockquote rt {
    font-size: 0.45em;
}

body.ruby-off rt {
    display: none;
}

body.ruby-off rp {
    display: inline;
}

/* Ruby toggle toolbar */
.article-toolbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--color-border);
}

.ruby-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.22rem;
    min-width: 38px;
    padding: 0.28rem 0.55rem;
    font-size: 0.76rem;
    font-family: var(--font-sans);
    color: var(--color-text-light);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    line-height: 1;
    font-weight: 700;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.ruby-toggle:hover {
    color: var(--color-text-light);
}

.ruby-toggle[aria-pressed="true"] {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.header-ruby-toggle {
    min-width: 64px;
    padding: 0.28rem 0.55rem;
    font-size: 0.76rem;
}

.ruby-toggle-icon {
    font-size: 0.82em;
}

.article-share {
    margin-top: 2rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--color-border);
}

.article-share-title {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 0.8rem;
}

.article-share-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1;
    transition: all 0.2s ease;
    cursor: pointer;
}

.share-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-1px);
}

.share-x:hover {
    background: #111;
    border-color: #111;
    color: #fff;
}

.share-facebook:hover {
    background: #1877f2;
    border-color: #1877f2;
    color: #fff;
}

.share-line:hover {
    background: #06c755;
    border-color: #06c755;
    color: #fff;
}

.share-threads:hover {
    background: #000;
    border-color: #000;
    color: #fff;
}

.share-copy:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.article-prev-next {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1.4rem 0 2rem;
}

.article-prev-next a,
.article-prev-next .disabled-link {
    display: block;
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    padding: 0.9rem 1rem;
    font-size: 0.92rem;
    transition: all 0.3s ease;
}

.article-prev-next a:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.article-prev-next .next-item {
    text-align: right;
}

.article-prev-next .disabled-link {
    color: #aaa;
}

.article-related {
    margin-top: 1.2rem;
    margin-bottom: 2.4rem;
}

.article-related h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.related-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.related-card-main-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
}

.related-card-body {
    padding: 0.8rem;
    flex: 1;
}

.related-card-thumb {
    position: relative;
    width: 100%;
    height: 0;
    padding-top: 56.25%; /* 16:9 fallback-safe */
    overflow: hidden;
    background: #eef2f7;
    flex-shrink: 0;
}

.related-card-thumb-image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.related-card-era {
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 600;
}

.related-card h3 {
    font-size: 1rem;
    line-height: 1.4;
    margin: 0.35rem 0;
    font-family: var(--font-serif);
    color: var(--color-primary);
}

.related-card p {
    color: var(--color-text-light);
    font-size: 0.84rem;
    line-height: 1.5;
}

.related-tags {
    margin-top: 0.55rem;
}

.related-tags span {
    display: inline-block;
    margin-right: 0.38rem;
    margin-bottom: 0.2rem;
    font-size: 0.72rem;
    color: var(--color-accent);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.12rem 0.45rem;
}

.related-tag-link {
    display: inline-block;
    margin-right: 0.38rem;
    margin-bottom: 0.2rem;
    font-size: 0.72rem;
    color: var(--color-text-main);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.12rem 0.45rem;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.related-tag-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sidebar-tag-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    color: var(--color-text-main);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.2rem 0.55rem;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.sidebar-tag-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.sidebar-tag-link span {
    color: var(--color-accent);
    font-size: 0.72rem;
    font-weight: 700;
}

.index-entry-link {
    display: block;
    padding: 0.8rem 1rem;
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.index-entry-link:hover {
    background: #fff;
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.tag-empty {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.tag-page h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    margin-bottom: 0.35rem;
    color: var(--color-primary);
}

.tag-page-desc {
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.tag-related {
    margin-bottom: 1.1rem;
}

.tag-related-title {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 0.45rem;
}

.static-main {
    max-width: 860px;
    margin: 6rem auto 3rem;
    padding: 0 2rem;
}

.static-card {
    background: var(--color-bg-sub);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-main);
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.static-card h1 {
    font-family: var(--font-serif);
    font-size: 2rem;
    margin-bottom: 0.8rem;
    color: var(--color-primary);
}

.static-card h2 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    margin: 1.8rem 0 0.6rem;
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
}

.static-card p,
.static-card li {
    color: var(--color-text-main);
}

.static-card ul {
    margin-left: 1.2rem;
}

.index-table-wrap {
    overflow-x: auto;
    margin: 0.8rem 0 1.4rem;
}

.index-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
    background: #fff;
    border: 1px solid var(--color-border);
}

.index-table th,
.index-table td {
    border-bottom: 1px solid var(--color-border);
    padding: 0.7rem 0.75rem;
    text-align: left;
    vertical-align: top;
    font-size: 0.95rem;
}

.index-table th {
    background: var(--color-bg-sub);
    color: var(--color-primary);
    font-weight: 700;
}

.index-note {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Contact Form Styles */
#contact-form label {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.95rem;
}

#contact-form input[type="text"],
#contact-form input[type="email"],
#contact-form select,
#contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-top: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 1rem;
    background-color: #fcfcfc;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#contact-form input:focus,
#contact-form select:focus,
#contact-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(181, 146, 80, 0.15);
    background-color: #fff;
}

#contact-form button[type="submit"] {
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-top: 1rem;
    letter-spacing: 0.05em;
}

#contact-form button[type="submit"]:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}

#contact-form input[type="checkbox"] {
    accent-color: var(--color-accent);
    margin-right: 0.5rem;
}

/* Animations */
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    animation: slideUp 0.8s ease forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
        margin-top: 4rem;
    }
    
    .blog-list {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-header {
        flex-direction: column;
    }

    .filter-groups {
        width: 100%;
        align-items: flex-start;
    }

    .genre-filter-tabs {
        justify-content: flex-start;
    }

    .featured-mini-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .static-main {
        padding: 0 1rem;
    }

    .header-inner {
        padding: 0 0.9rem;
        gap: 0.6rem;
    }

    .logo {
        font-size: 1.35rem;
        letter-spacing: 0.02em;
    }

    .site-logo {
        width: 28px;
        height: 28px;
    }

    .header-right {
        gap: 0.5rem;
    }

    .lang-switch a {
        min-width: 32px;
        padding: 0.22rem 0.42rem;
        font-size: 0.7rem;
    }

    .header-ruby-toggle {
        min-width: 56px;
        padding: 0.22rem 0.42rem;
        font-size: 0.7rem;
    }
    
    .main-nav {
        display: block;
        position: fixed;
        top: 0;
        right: -100%;
        width: min(84vw, 320px);
        height: 100vh;
        background-color: #fff;
        padding: 5rem 2rem;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        z-index: 999;
    }

    .search-toggle {
        display: none;
    }

    .main-nav.active {
        right: 0;
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
        position: relative;
    }
    
    .featured-content {
        padding: 2rem 1.2rem;
    }

    .featured-content h2 {
        font-size: 1.7rem;
    }

    .featured-area {
        padding: 1.8rem 1rem;
    }

    .featured-post {
        height: 380px;
    }

    .featured-mini-card {
        grid-template-columns: 96px 1fr;
    }

    .featured-mini-body p {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .article-page {
        padding: 0.8rem 1rem;
        background: var(--color-bg-sub);
        box-shadow: none;
        border-radius: 0;
        overflow-x: hidden;
    }

    main.container[style*="max-width: 860px"] {
        padding-left: 0;
        padding-right: 0;
    }

    .article-page h1 {
        font-size: 1.55rem;
        line-height: 1.35;
        overflow-wrap: break-word;
        word-break: normal;
    }

    .article-text h3.article-subheading-with-top {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
        gap: 0.8rem;
    }

    .article-page .article-text {
        font-size: 0.98rem;
        line-height: 2.02;
        overflow-x: hidden;
    }

    .article-toc {
        max-width: 100%;
    }

    body:not(.ruby-off) .article-page .article-text,
    body:not(.ruby-off) .article-page .article-text p,
    body:not(.ruby-off) .article-page .article-text li,
    body:not(.ruby-off) .article-page .article-text blockquote {
        line-height: 2.08;
    }

    .article-text p {
        margin-bottom: 1.25rem;
        overflow-wrap: break-word;
        word-break: normal;
    }

    .article-text blockquote {
        font-size: 0.96rem;
        line-height: 1.95;
        padding: 0.95rem 1.1rem;
        overflow-wrap: break-word;
        word-break: normal;
    }

    .article-text li,
    .article-text h3,
    .article-text h4,
    .article-subtitle,
    .article-meta {
        overflow-wrap: break-word;
        word-break: normal;
    }

    .article-image {
        height: min(58vw, 320px) !important;
    }

    .article-text ruby {
        line-height: 1.6;
    }

    .article-text rt {
        font-size: 0.5em;
        overflow-wrap: break-word;
        word-break: normal;
    }

    .article-prev-next {
        grid-template-columns: 1fr;
    }

    .article-prev-next .next-item {
        text-align: left;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}