/* ==========================================================================
   Additional Styles
   ========================================================================== */

/* Responsive display utilities */
.sp-only {
    display: none;
}

@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
    .pc-only {
        display: none;
    }
}

/* Hero Section */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: var(--spacing-3xl) var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-2xl);
    overflow: hidden;
}

/* Hero with background image */
.hero-section--with-image {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section--with-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.75) 100%);
    z-index: 1;
}

.hero-section--with-image .hero-inner {
    position: relative;
    z-index: 2;
}

.hero-inner {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    color: #fff;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin: 0;
}

/* Hero Mobile */
@media (max-width: 768px) {
    .hero-section {
        padding: var(--spacing-lg) var(--spacing-md);
        margin-bottom: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .hero-title {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
        margin-bottom: var(--spacing-xs);
    }

    .hero-description {
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }

    .hero-description br {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
    }

    .hero-title {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-xs);
    }

    .hero-description {
        font-size: var(--font-size-xs);
        line-height: 1.5;
    }
}

/* ==========================================================================
   Compact Hero (New Layout)
   ========================================================================== */

.hero-compact {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-lg);
}

.hero-compact__title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.hero-compact__description {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Category Pills */
.category-pills {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.category-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.category-pill:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* ==========================================================================
   Featured Article (New Layout)
   ========================================================================== */

.featured-article {
    display: grid;
    grid-template-columns: 3fr 2fr;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-2xl);
    transition: box-shadow var(--transition-base);
}

.featured-article:hover {
    box-shadow: var(--shadow-lg);
}

/* 画像をコンテンツの高さに合わせて親要素いっぱいに表示 */
.featured-article__image {
    position: relative;
    overflow: hidden;
    display: block;
    min-height: 250px;
}

.featured-article__image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-slow);
}

.featured-article:hover .featured-article__image img {
    transform: scale(1.05);
}

.featured-article__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    color: var(--color-text-muted);
}

.featured-article__category {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.featured-article__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--spacing-xl);
}

.featured-article__title {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.featured-article__title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.featured-article__title a:hover {
    color: var(--color-accent-dark);
}

.featured-article__excerpt {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-article__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.featured-article__meta .read-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Featured Article Responsive */
@media (max-width: 768px) {
    .featured-article {
        grid-template-columns: 1fr;
    }

    .featured-article__image {
        aspect-ratio: 16 / 9;
    }

    .featured-article__content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-compact {
        padding: var(--spacing-md) 0;
    }

    .hero-compact__title {
        font-size: 1.25rem;
    }

    .hero-compact__description {
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }

    .category-pill {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-xs);
    }

    .featured-article__content {
        padding: var(--spacing-md);
    }

    .featured-article__title {
        font-size: 1.1rem;
    }

    .featured-article__excerpt {
        font-size: var(--font-size-sm);
        -webkit-line-clamp: 2;
    }
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.articles-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 992px) {
    .articles-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {

    .articles-grid,
    .articles-grid--3 {
        grid-template-columns: 1fr;
    }
}

/* Archive Header */
.archive-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-primary);
}

.archive-title {
    margin-bottom: var(--spacing-sm);
}

.archive-description {
    color: var(--color-text-light);
}

/* Search */
.search-header {
    margin-bottom: var(--spacing-xl);
}

.search-title {
    font-size: var(--font-size-2xl);
}

.search-result-count {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* Error 404 */
.error-404 {
    padding: var(--spacing-3xl);
}

.error-404__actions {
    margin: var(--spacing-xl) 0;
}

.error-404__search {
    margin-top: var(--spacing-2xl);
}

.error-404__categories {
    margin-top: var(--spacing-2xl);
}

.category-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.category-list li {
    border: none;
    padding: 0;
}

.category-list a {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

/* Article Tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.article-tags__label {
    font-weight: 500;
    color: var(--color-text-light);
}

.article-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.article-tag:hover {
    background-color: var(--color-primary);
    color: #fff;
    text-decoration: none;
}

/* Author Box */
.author-box {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
}

.author-box__avatar img {
    border-radius: var(--radius-full);
}

.author-box__name {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.author-box__bio {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Related Posts */
.related-posts {
    margin-top: var(--spacing-2xl);
}

.related-posts__title {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

/* Single Article Thumbnail */
.single-article__thumbnail {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.single-article__thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* LINE CTA Compact Style */
.line-cta--compact {
    background: linear-gradient(135deg, #06C755 0%, #00B900 100%);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
}

.line-cta--compact .line-cta__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.line-cta--compact .line-cta__text {
    color: #fff;
}

.line-cta__button--small {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Sidebar LINE CTA */
.line-cta--sidebar {
    padding: var(--spacing-lg);
}

.line-cta--sidebar .line-cta__icon {
    margin-bottom: var(--spacing-md);
}

.line-cta--sidebar .line-cta__title {
    font-size: var(--font-size-lg);
    color: #fff;
}

.line-cta--sidebar .line-cta__description {
    font-size: var(--font-size-sm);
}

.line-cta--sidebar .line-cta__button {
    width: 100%;
    justify-content: center;
}

/* FAQ Styles */
.faq-item {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.faq-question {
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-sm);
}

.faq-question::before {
    content: 'Q';
    color: var(--color-accent);
    font-family: var(--font-family-heading);
    font-weight: 700;
    flex-shrink: 0;
}

.faq-answer {
    display: flex;
    gap: var(--spacing-sm);
    color: var(--color-text-light);
    line-height: 1.8;
}

.faq-answer::before {
    content: 'A';
    color: #3B82F6;
    font-family: var(--font-family-heading);
    font-weight: 700;
    flex-shrink: 0;
}

/* HowTo Styles */
.howto {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    color: #fff;
}

.howto-step {
    position: relative;
    padding-left: 60px;
    margin-bottom: var(--spacing-xl);
}

.howto-step:last-child {
    margin-bottom: 0;
}

.howto-step::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 48px;
    bottom: -24px;
    width: 2px;
    background: rgba(255, 255, 255, 0.15);
}

.howto-step:last-child::before {
    display: none;
}

.howto-step__title {
    color: #fff;
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.howto-step__content {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.howto-step__content p {
    margin: 0;
}

.step-number {
    position: absolute;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

/* Table Styles - 記事内テーブル */
.single-article__content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    font-size: var(--font-size-sm);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.single-article__content table th,
.single-article__content table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.single-article__content table th {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 600;
    white-space: nowrap;
}

.single-article__content table tr:last-child td {
    border-bottom: none;
}

.single-article__content table tr:nth-child(even) {
    background: var(--color-bg);
}

.single-article__content table tr:hover {
    background: var(--color-bg-warm);
}

/* Point Box内のテーブル */
.point-box table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.point-box table th,
.point-box table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--color-text-inverse);
}

.point-box table th {
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
    color: var(--color-accent-light);
}

.point-box table tr:last-child td {
    border-bottom: none;
}

/* レスポンシブテーブル */
@media (max-width: 768px) {
    .single-article__content table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .single-article__content table th,
    .single-article__content table td {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
}

/* Point Box - 黒板風ポイント解説ボックス */
.point-box {
    position: relative;
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-primary-lighter);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.05),
        var(--shadow-lg);
}

.point-box::before {
    content: 'POINT';
    position: absolute;
    top: 0;
    left: var(--spacing-lg);
    transform: translateY(-50%);
    background: var(--color-accent);
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
}

.point-box p,
.point-box li {
    color: var(--color-text-inverse);
    line-height: 1.8;
}

.point-box p:last-child {
    margin-bottom: 0;
}

.point-box strong {
    color: var(--color-accent-light);
}

.point-box ul,
.point-box ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.point-box li {
    margin-bottom: var(--spacing-xs);
}

.point-box li::marker {
    color: var(--color-accent);
}

/* Point Box Mobile - スマホで画面幅いっぱいに広げる */
@media (max-width: 768px) {
    .point-box {
        /* 親要素のパディングを打ち消して画面幅いっぱいに */
        margin-left: calc(-1 * var(--spacing-lg));
        margin-right: calc(-1 * var(--spacing-lg));
        padding: var(--spacing-md) var(--spacing-lg);
        border-radius: 0;
    }

    .point-box ul,
    .point-box ol {
        padding-left: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .point-box {
        margin-left: calc(-1 * var(--spacing-md));
        margin-right: calc(-1 * var(--spacing-md));
        padding: var(--spacing-md) var(--spacing-md);
    }

    .point-box p,
    .point-box li {
        font-size: var(--font-size-sm);
        line-height: 1.7;
    }

    .point-box ul,
    .point-box ol {
        padding-left: var(--spacing-sm);
    }
}

/* カテゴリーバッジ統一スタイル */
.category-tag,
.single-article__header .category-tag,
.featured-article__content .category-tag {
    display: inline-block;
    width: fit-content;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    text-decoration: none;
}

/* Hide category badge on single article thumbnail */
.single-article .article-card__category,
.single-article__thumbnail .article-card__category,
.single-post .article-card__category,
.single-post .featured-article__category,
body.single-post .article-card__category {
    display: none;
}

/* Search Form */
.search-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.search-form .search-field {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
}

.search-form .search-submit {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.search-form .search-submit:hover {
    background-color: var(--color-primary-dark);
}

/* No Posts */
.no-posts {
    text-align: center;
    padding: var(--spacing-3xl);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-description {
        font-size: var(--font-size-base);
    }

    .single-article {
        padding: var(--spacing-lg);
    }

    .single-article__title {
        font-size: var(--font-size-lg);
    }

    .cta-box-v2__title {
        font-size: var(--font-size-lg);
    }

    .author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .line-cta--compact .line-cta__inner {
        flex-direction: column;
        text-align: center;
    }
}

/* ==========================================================================
   Category Navigation Cards
   ========================================================================== */

.category-nav {
    margin-bottom: var(--spacing-2xl);
}

.category-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-bg);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    transition: all var(--transition-normal);
}

.category-card:hover .category-card__icon {
    background-color: var(--color-primary);
    color: #fff;
}

.category-card__icon--accent {
    color: var(--color-accent);
}

.category-card:hover .category-card__icon--accent {
    background-color: var(--color-accent);
}

.category-card__icon--tertiary {
    color: #059669;
}

.category-card:hover .category-card__icon--tertiary {
    background-color: #059669;
}

.category-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    white-space: nowrap;
}

.category-card__desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0 0 var(--spacing-md);
    white-space: nowrap;
}

.category-card__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-lighter);
    transition: all var(--transition-normal);
}

.category-card:hover .category-card__arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .category-nav {
        margin-bottom: var(--spacing-lg);
    }

    .category-cards {
        display: flex;
        gap: var(--spacing-sm);
    }

    .category-card {
        flex: 1;
        flex-direction: row;
        align-items: center;
        text-align: left;
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .category-card::before {
        display: none;
    }

    .category-card__icon {
        width: 36px;
        height: 36px;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .category-card__icon svg {
        width: 20px;
        height: 20px;
    }

    .category-card__title {
        font-size: var(--font-size-sm);
        margin-bottom: 0;
    }

    .category-card__desc {
        display: none;
    }

    .category-card__arrow {
        display: none;
    }
}

@media (max-width: 480px) {
    .category-cards {
        gap: var(--spacing-xs);
    }

    .category-card {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .category-card__icon {
        width: 32px;
        height: 32px;
    }

    .category-card__icon svg {
        width: 18px;
        height: 18px;
    }

    .category-card__title {
        font-size: var(--font-size-xs);
    }
}

/* ==========================================================================
   Section Header
   ========================================================================== */

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: 0;
}

.section-title__text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    white-space: nowrap;
}

.section-title__line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, transparent 100%);
}

/* ==========================================================================
   Improved Article Card
   ========================================================================== */

.article-card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.article-card__image {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.article-card:hover .article-card__image img {
    transform: scale(1.05);
}

.article-card__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg) 0%, #e2e8f0 100%);
    color: var(--color-text-lighter);
}

/* article-card__category styles are in style.css */

.article-card__content {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--spacing-lg);
}

.article-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.article-card__title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.article-card__title a:hover {
    color: var(--color-primary);
}

.article-card__excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.7;
    margin: 0 0 var(--spacing-md);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
}

.article-card__footer time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.read-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.read-time svg {
    opacity: 0.7;
}

/* ==========================================================================
   Background Decoration
   ========================================================================== */

.bg-decoration {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.bg-gradient-orb--1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    animation: float-slow 20s ease-in-out infinite;
}

.bg-gradient-orb--2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3B82F6 0%, transparent 70%);
    bottom: 20%;
    left: -150px;
    opacity: 0.2;
    animation: float-slow 25s ease-in-out infinite reverse;
}

.bg-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.015;
}

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, 20px) scale(1.05); }
}

/* Print styles */
@media print {

    .line-cta,
    .sidebar,
    .site-header,
    .site-footer,
    .breadcrumb,
    .bg-decoration {
        display: none !important;
    }

    .site-content {
        display: block;
    }

    .single-article {
        box-shadow: none;
        padding: 0;
    }
}

/* ==========================================================================
   Table of Contents
   ========================================================================== */

.table-of-contents {
    background: #F8F7F4;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.table-of-contents h4 {
    font-size: var(--font-size-xl);
    font-family: var(--font-family-heading);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-lg) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.table-of-contents h4::before {
    content: '\2261';
    font-size: 1.2em;
}

.table-of-contents h4::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.table-of-contents ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.table-of-contents li {
    margin-bottom: var(--spacing-sm);
}

.table-of-contents a {
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    transition: all 150ms ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

.table-of-contents a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

.table-of-contents .toc-h3 {
    padding-left: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

/* Easy Table of Contents Plugin */
#ez-toc-container {
    background: #F8F7F4 !important;
    border-radius: var(--radius-lg) !important;
    padding: var(--spacing-xl) !important;
    margin-bottom: var(--spacing-xl) !important;
    border: 1px solid var(--color-border) !important;
    box-shadow: none !important;
}

#ez-toc-container .ez-toc-title-container {
    margin-bottom: var(--spacing-lg);
}

#ez-toc-container .ez-toc-title {
    font-size: var(--font-size-xl) !important;
    font-family: var(--font-family-heading) !important;
    color: var(--color-primary) !important;
    font-weight: 500 !important;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#ez-toc-container .ez-toc-title::before {
    content: '\2261';
    font-size: 1.2em;
}

#ez-toc-container .ez-toc-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
    margin-left: var(--spacing-md);
}

#ez-toc-container nav ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

#ez-toc-container nav ul li {
    margin-bottom: var(--spacing-sm) !important;
    padding: 0 !important;
}

#ez-toc-container nav ul li::before {
    display: none !important;
}

#ez-toc-container nav ul li a {
    color: var(--color-text-light) !important;
    font-size: var(--font-size-base) !important;
    transition: all 150ms ease !important;
    text-decoration: none !important;
    display: inline-block;
}

#ez-toc-container nav ul li a:hover {
    color: var(--color-accent) !important;
    transform: translateX(4px);
}

#ez-toc-container nav ul ul {
    padding-left: var(--spacing-lg) !important;
    margin-top: var(--spacing-sm) !important;
}

#ez-toc-container nav ul ul li a {
    font-size: var(--font-size-sm) !important;
}

/* Hide default toggle icon */
#ez-toc-container .ez-toc-toggle,
#ez-toc-container .ez-toc-icon-toggle-span {
    display: none !important;
}

/* ==========================================================================
   Widget Styles - Premium Design
   ========================================================================== */

.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Widget Base */
.widget {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-light);
}

.widget__title,
.widget-title,
.widget h2,
.widget h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family-heading);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    margin: 0 0 var(--spacing-md) 0;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border-light);
}

.widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.widget ul li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.widget ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.widget ul li a {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all 200ms ease;
    display: block;
}

.widget ul li a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* Search Widget */
.widget_search .search-form {
    display: flex;
    gap: var(--spacing-sm);
}

.widget_search .search-field {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: border-color 200ms ease;
}

.widget_search .search-field:focus {
    outline: none;
    border-color: var(--color-accent);
}

.widget_search .search-submit {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all 200ms ease;
}

.widget_search .search-submit:hover {
    background: var(--color-primary-light);
}

/* LINE CTA Widget */
.line-cta-widget {
    background: linear-gradient(135deg, #06C755 0%, #00a040 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    color: var(--color-text-inverse);
    border: none;
}

.line-cta-widget__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.line-cta-widget__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
}

.line-cta-widget__icon svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

.line-cta-widget__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
    color: var(--color-text-inverse);
}

.line-cta-widget__body {
    padding: 0; /* 親要素に既にパディングがあるため */
}

.line-cta-widget__features {
    list-style: none;
    margin: 0 0 var(--spacing-md);
    padding: 0;
}

.line-cta-widget__features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    border-bottom: none;
}

/* SVGアイコンがHTML内に既に存在するため::beforeは不要 */

.line-cta-widget__button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-surface);
    color: var(--color-line);
    font-size: var(--font-size-base);
    font-weight: 700;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 200ms ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.line-cta-widget__button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.line-cta-widget__button svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Recent Posts Widget - Premium */
.widget_recent_entries li,
.widget_recent_comments li {
    padding: var(--spacing-sm) 0;
}

.widget_recent_entries li a {
    display: block;
    line-height: 1.5;
}

/* Categories Widget */
.widget_categories li {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.widget_categories li a {
    flex: 1;
}

.widget_categories .count,
.widget_categories li > span {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* Archives Widget */
.widget_archive li {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Section Titles - Premium */
.section-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--color-border), transparent);
}

/* ==========================================================================
   キャラクター会話スタイル
   ========================================================================== */

/* 話者名の基本スタイル */
.speaker {
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-right: 4px;
}

/* 日向 - 明るいオレンジ系 */
.speaker--hinata {
    background: #FFF3E0;
    color: #E65100;
}

/* 冴島 - 落ち着いたブルー系 */
.speaker--saejima {
    background: #E3F2FD;
    color: #1565C0;
}

/* ==========================================================================
   CTA Box V2 - シンプル＆高コンバージョン
   ========================================================================== */

.cta-box-v2,
section.cta-box-v2,
.single-article__footer .cta-box-v2,
.sidebar .cta-box-v2 {
    background: linear-gradient(135deg, #06C755 0%, #00B900 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.cta-box-v2__lead,
.single-article__content .cta-box-v2__lead {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.9) !important;
    margin: 0 0 var(--spacing-xs);
}

.cta-box-v2__title,
.single-article__content .cta-box-v2__title,
.single-article__content .cta-box-v2 h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #fff !important;
    margin: 0 0 var(--spacing-lg);
    line-height: 1.4;
}

.cta-box-v2__title strong {
    color: #FFE066;
}

.cta-box-v2__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 280px;
    padding: var(--spacing-md) var(--spacing-xl);
    background: #fff;
    color: #06C755;
    font-size: var(--font-size-lg);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    min-height: 56px;
}

.cta-box-v2__button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    color: #00a040;
}

.cta-box-v2__button svg {
    flex-shrink: 0;
}

/* スマホ対応 */
@media (max-width: 480px) {
    .cta-box-v2 {
        padding: var(--spacing-lg);
        margin: var(--spacing-lg) 0;
    }

    .cta-box-v2__title {
        font-size: var(--font-size-lg);
    }

    .cta-box-v2__button {
        max-width: 100%;
        font-size: var(--font-size-base);
        padding: var(--spacing-md);
    }
}