/**
 * 不動産資格記事 - WordPress SWELL準拠CSS
 * FTPでアップロード後、Code Snippetsでwp_enqueue_styleで読み込み
 *
 * 注意事項:
 * - 全スタイルは .fudosan-article-wrap でスコープ化（SWELL衝突回避）
 * - h1タグは使用せず div.fs-title-main で代替
 * - h2/h3タグは使用し、スコープ内で独自スタイルを適用
 * - カスタムプロパティはスコープ内で再定義
 */

/* ========================================
   CSS VARIABLES（スコープ内で定義）
   ======================================== */
.fudosan-article-wrap {
    /* 不動産業界の世界観: 信頼・安定・プロフェッショナル */
    --fs-primary-navy: #1a365d;
    --fs-primary-navy-light: #2c5282;
    --fs-accent-gold: #c59f4a;
    --fs-accent-gold-light: #d4af61;
    --fs-trust-green: #2f855a;
    --fs-trust-green-light: #38a169;
    --fs-warm-beige: #f7f3ed;
    --fs-warm-cream: #fdfcfa;
    --fs-text-dark: #2d3748;
    --fs-text-medium: #4a5568;
    --fs-text-light: #718096;
    --fs-border-subtle: #e2e0dc;

    /* レガシー互換（UI機能用） */
    --fs-primary: #1a365d;
    --fs-primary-light: #2c5282;
    --fs-primary-dark: #14355c;
    --fs-secondary: #c59f4a;
    --fs-secondary-light: #d4af61;
    --fs-accent: #2f855a;
    --fs-accent-light: #38a169;

    /* Semantic Colors */
    --fs-success: #2f855a;
    --fs-warning: #c59f4a;
    --fs-error: #c53030;
    --fs-info: #2c5282;

    /* Neutral Colors */
    --fs-neutral-50: #fdfcfa;
    --fs-neutral-100: #f7f3ed;
    --fs-neutral-200: #e2e0dc;
    --fs-neutral-300: #cbd5e1;
    --fs-neutral-400: #94a3b8;
    --fs-neutral-500: #64748b;
    --fs-neutral-600: #475569;
    --fs-neutral-700: #334155;
    --fs-neutral-800: #1e293b;
    --fs-neutral-900: #0f172a;

    /* TikTok UI Colors（紺×金テーマ統合） */
    --fs-navy: #1a365d;
    --fs-gold: #c59f4a;
    --fs-green: #2f855a;

    /* 影とラディウス */
    --fs-shadow-soft: 0 4px 20px rgba(26, 54, 93, 0.08);
    --fs-shadow-card: 0 2px 12px rgba(26, 54, 93, 0.06);
    --fs-shadow-hover: 0 8px 30px rgba(26, 54, 93, 0.12);

    /* Animation */
    --fs-transition-fast: 150ms;
    --fs-transition-normal: 300ms;
    --fs-easing: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   BASE STYLES
   ======================================== */
.fudosan-article-wrap {
    font-family: 'Hiragino Mincho ProN', 'Noto Serif JP', 'Yu Mincho', serif;
    font-size: 16px;
    line-height: 1.9;
    color: var(--fs-text-dark);
}

.fudosan-article-wrap * {
    box-sizing: border-box;
}

/* ========================================
   LAYOUT
   ======================================== */
.fs-article-container {
    max-width: 100%;
    margin: 0 auto;
}

/* ========================================
   HEADER - 不動産らしい重厚感
   ======================================== */
.fs-article-header {
    padding: 60px 20px 50px;
    background: linear-gradient(180deg, var(--fs-primary-navy) 0%, var(--fs-primary-navy-light) 100%);
    color: white;
    text-align: center;
    position: relative;
    margin-bottom: 0;
    border-radius: 8px 8px 0 0;
}

.fs-article-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--fs-accent-gold) 0%, var(--fs-accent-gold-light) 50%, var(--fs-accent-gold) 100%);
}

/* タイトル（h1代替）*/
.fs-title-main {
    font-size: 1.6rem;
    font-weight: 600;
    line-height: 1.5;
    color: white;
    margin-bottom: 0;
    letter-spacing: 0.03em;
}

@media (min-width: 768px) {
    .fs-title-main {
        font-size: 1.8rem;
    }
}

/* ========================================
   ARTICLE BODY
   ======================================== */
.fs-article-body {
    background: white;
    padding: 32px 20px;
    border-radius: 0 0 8px 8px;
}

@media (min-width: 480px) and (max-width: 767px) {
    .fs-article-body {
        padding: 32px 24px;
    }
}

@media (min-width: 768px) {
    .fs-article-body {
        padding: 48px 32px;
    }
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
/* H2スタイル - SWELLのデフォルトを上書き */
.fudosan-article-wrap h2 {
    font-size: 1.5rem !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    color: var(--fs-primary-navy) !important;
    margin-top: 60px !important;
    margin-bottom: 32px !important;
    padding: 0 0 0 20px !important;
    border: none !important;
    border-top: none !important;
    border-bottom: none !important;
    border-right: none !important;
    border-left: 4px solid var(--fs-accent-gold) !important;
    background: transparent !important;
    position: relative !important;
    letter-spacing: 0.02em;
    scroll-margin-top: 16px;
    overflow: visible !important;
}

/* SWELLの装飾ボーダーを完全にリセット */
.fudosan-article-wrap h2::before {
    content: attr(data-label) !important;
    position: absolute !important;
    top: -24px !important;
    left: 20px !important;
    right: auto !important;
    bottom: auto !important;
    width: auto !important;
    height: auto !important;
    font-size: 0.75rem !important;
    color: var(--fs-accent-gold) !important;
    letter-spacing: 0.1em !important;
    font-weight: 500 !important;
    background: transparent !important;
    border: none !important;
    transform: none !important;
    display: block !important;
}

.fudosan-article-wrap h2::after {
    content: none !important;
    display: none !important;
    width: 0 !important;
    height: 0 !important;
    border: none !important;
    background: transparent !important;
}

@media (min-width: 768px) {
    .fudosan-article-wrap h2 {
        font-size: 1.65rem !important;
        margin-top: 70px !important;
    }
}

/* H3スタイル - カードスタイル、SWELLのデフォルトを上書き */
.fudosan-article-wrap h3 {
    font-size: 1.1rem !important;
    font-weight: 600 !important;
    line-height: 1.4 !important;
    color: var(--fs-primary-navy) !important;
    margin-top: 32px !important;
    margin-bottom: 20px !important;
    padding: 24px 28px !important;
    background: white !important;
    border: 1px solid var(--fs-border-subtle) !important;
    border-radius: 10px !important;
    position: relative;
    transition: all 0.3s ease;
    scroll-margin-top: 16px;
}

.fudosan-article-wrap h3::before {
    content: '' !important;
    position: absolute !important;
    top: 16px !important;
    right: 16px !important;
    left: auto !important;
    width: 32px !important;
    height: 32px !important;
    background: var(--fs-accent-gold) !important;
    border-radius: 50% !important;
    opacity: 0.15 !important;
}

.fudosan-article-wrap h3::after {
    display: none !important;
}

.fudosan-article-wrap h3:hover {
    box-shadow: var(--fs-shadow-hover);
    transform: translateY(-3px);
}

@media (min-width: 768px) {
    .fudosan-article-wrap h3 {
        font-size: 1.15rem !important;
    }
}

/* H4スタイル（使用する場合） */
.fudosan-article-wrap h4 {
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: var(--fs-primary-navy) !important;
    margin-top: 24px !important;
    margin-bottom: 12px !important;
    padding: 0 !important;
    border: none !important;
    background: transparent !important;
}

.fudosan-article-wrap h4::before,
.fudosan-article-wrap h4::after {
    display: none !important;
}

/* 段落 */
.fudosan-article-wrap p {
    margin-bottom: 20px;
}

.fudosan-article-wrap strong {
    font-weight: 600;
    color: var(--fs-neutral-800);
}

/* ========================================
   MARKERS & HIGHLIGHTS
   ======================================== */
.fs-marker-yellow {
    background: linear-gradient(transparent 60%, rgba(197, 159, 74, 0.3) 60%);
    padding: 0 2px;
}

.fs-marker-pink {
    background: linear-gradient(transparent 60%, rgba(26, 54, 93, 0.15) 60%);
    padding: 0 2px;
}

.fs-marker-gradient {
    background: linear-gradient(90deg, rgba(197, 159, 74, 0.25) 0%, rgba(47, 133, 90, 0.25) 100%);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ========================================
   BOX STYLES
   ======================================== */
.fs-box-base {
    border-radius: 12px;
    padding: 20px 24px;
    margin: 24px 0;
}

.fs-box-checklist {
    background: var(--fs-warm-beige);
    border: 1px solid var(--fs-border-subtle);
    border-left: 4px solid var(--fs-trust-green);
}

.fs-box-checklist ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fs-box-checklist li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 8px;
}

.fs-box-checklist li:last-child {
    margin-bottom: 0;
}

.fs-box-checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--fs-success);
    font-weight: 600;
}

.fs-box-important {
    background: linear-gradient(135deg, var(--fs-warm-cream) 0%, #fff 100%);
    border-left: 4px solid var(--fs-primary-navy);
    box-shadow: var(--fs-shadow-card);
}

.fs-box-warning {
    background: #fffbeb;
    border: 1px solid var(--fs-border-subtle);
    border-left: 4px solid var(--fs-accent-gold);
}

.fs-box-summary {
    background: linear-gradient(135deg, var(--fs-warm-beige) 0%, var(--fs-warm-cream) 100%);
    border: 2px solid var(--fs-trust-green);
    border-radius: 16px;
}

.fs-box-tip {
    background: var(--fs-warm-beige);
    border: 1px solid var(--fs-border-subtle);
    border-left: 4px solid var(--fs-accent-gold);
}

/* ========================================
   SCENE COMPARISON (資格あり vs なし)
   ======================================== */
.fs-scene-comparison-wrap {
    margin: 40px 0;
    padding: 28px 24px;
    background: var(--fs-warm-beige);
    border-radius: 14px;
    border: 1px solid var(--fs-border-subtle);
}

.fs-comparison-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--fs-primary-navy);
    margin-bottom: 8px;
    text-align: center;
}

.fs-comparison-lead {
    font-size: 0.9rem;
    color: var(--fs-text-medium);
    text-align: center;
    margin-bottom: 24px;
}

.fs-scene-comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 640px) {
    .fs-scene-comparison-grid {
        grid-template-columns: 1fr;
    }
}

.fs-comparison-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--fs-shadow-card);
}

.fs-comparison-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--fs-primary-navy);
    color: white;
}

.fs-comparison-num {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--fs-accent-gold);
    color: var(--fs-primary-navy);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50%;
}

.fs-comparison-label {
    font-size: 0.95rem;
    font-weight: 600;
}

.fs-comparison-body {
    padding: 14px 16px;
}

.fs-comparison-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
}

.fs-comparison-row:first-child {
    border-bottom: 1px dashed var(--fs-border-subtle);
}

.fs-row-tag {
    flex-shrink: 0;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.fs-comparison-row.without .fs-row-tag {
    background: var(--fs-neutral-200);
    color: var(--fs-text-medium);
}

.fs-comparison-row.with .fs-row-tag {
    background: var(--fs-trust-green);
    color: white;
}

.fs-row-text {
    font-size: 0.88rem;
    line-height: 1.5;
    color: var(--fs-text-dark);
}

.fs-comparison-row.without .fs-row-text {
    color: var(--fs-text-medium);
}

/* ========================================
   READ PROGRESS BAR
   ======================================== */
.fs-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--fs-neutral-200);
    z-index: 9999;
}

.fs-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--fs-navy), var(--fs-gold));
    width: 0%;
    transition: width 100ms linear;
}

/* ========================================
   DIAGNOSIS TOOL
   ======================================== */
.fs-diagnosis-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 36px;
    background: white;
    border-radius: 14px;
    box-shadow: var(--fs-shadow-soft);
    border: 2px solid var(--fs-trust-green);
    position: relative;
    overflow: hidden;
}

.fs-diagnosis-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--fs-trust-green), var(--fs-trust-green-light), var(--fs-accent-gold));
}

.fs-diagnosis-header {
    text-align: center;
    margin-bottom: 24px;
}

.fs-diagnosis-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--fs-navy);
    margin-bottom: 8px;
}

.fs-diagnosis-subtitle {
    font-size: 14px;
    color: var(--fs-neutral-500);
}

.fs-diagnosis-progress {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 8px 0;
}

.fs-diagnosis-progress .fs-progress-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--fs-neutral-300);
    transition: all var(--fs-transition-normal) var(--fs-easing);
    cursor: pointer;
    flex-shrink: 0;
}

.fs-diagnosis-progress .fs-progress-dot.completed {
    background-color: var(--fs-trust-green);
}

.fs-diagnosis-progress .fs-progress-dot.current {
    background-color: var(--fs-accent-gold);
    transform: scale(1.3);
    box-shadow: 0 0 0 4px rgba(197, 159, 74, 0.2);
}

.fs-diagnosis-question {
    display: none;
    animation: fsFadeInUp 400ms var(--fs-easing);
}

.fs-diagnosis-question.active {
    display: block;
}

.fs-question-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--fs-navy);
    text-align: center;
    margin-bottom: 24px;
}

.fs-diagnosis-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.fs-diagnosis-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: #fff;
    border: 2px solid var(--fs-neutral-200);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--fs-transition-fast) var(--fs-easing);
}

.fs-diagnosis-option:hover {
    border-color: var(--fs-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(197, 159, 74, 0.2);
}

.fs-diagnosis-option:active {
    transform: scale(0.98);
    background: #fef3c7;
}

.fs-diagnosis-option.selected {
    border-color: var(--fs-gold);
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
}

.fs-option-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--fs-neutral-100);
    border-radius: 10px;
    font-size: 20px;
}

.fs-option-label {
    font-size: 16px;
    font-weight: 500;
    color: var(--fs-neutral-700);
}

.fs-diagnosis-result {
    display: none;
    animation: fsFadeInUp 800ms var(--fs-easing);
}

.fs-diagnosis-result.active {
    display: block;
}

.fs-result-card {
    background: linear-gradient(135deg, var(--fs-navy) 0%, #2d4a7c 100%);
    color: #fff;
    padding: 24px;
    border-radius: 16px;
    margin-bottom: 24px;
}

.fs-result-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.fs-result-qualification {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.fs-result-reason {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.6;
}

.fs-result-details {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
}

.fs-result-section {
    margin-bottom: 20px;
}

.fs-result-section:last-child {
    margin-bottom: 0;
}

.fs-result-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--fs-navy);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.fs-result-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fs-result-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    border-bottom: 1px solid var(--fs-neutral-100);
}

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

.fs-result-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--fs-gold);
}

.fs-diagnosis-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.fs-btn {
    flex: 1;
    padding: 14px 24px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--fs-transition-fast) var(--fs-easing);
    border: none;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.fs-btn-primary {
    background: var(--fs-gold);
    color: var(--fs-navy);
}

.fs-btn-primary:hover {
    background: #d4af5a;
    transform: translateY(-2px);
}

.fs-btn:active {
    transform: scale(0.98);
}

.fs-btn-secondary {
    background: var(--fs-neutral-100);
    color: var(--fs-neutral-700);
}

.fs-btn-secondary:hover {
    background: var(--fs-neutral-200);
}

/* ========================================
   COMPARISON TABLE
   ======================================== */
.fs-comparison-container {
    margin: 32px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.fs-comparison-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.fs-comparison-table thead {
    background: var(--fs-navy);
    color: #fff;
}

.fs-comparison-table th {
    padding: 16px 12px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: background var(--fs-transition-fast);
    user-select: none;
}

.fs-comparison-table th:hover {
    background: #2d4a7c;
}

.fs-comparison-table th.sorted-asc::after {
    content: ' ↑';
}

.fs-comparison-table th.sorted-desc::after {
    content: ' ↓';
}

.fs-comparison-table th:first-child {
    text-align: left;
    padding-left: 20px;
    position: sticky;
    left: 0;
    background: var(--fs-navy);
    z-index: 1;
}

.fs-comparison-table tbody tr {
    background: #fff;
    transition: background var(--fs-transition-fast);
}

.fs-comparison-table tbody tr:nth-child(even) {
    background: var(--fs-neutral-50);
}

.fs-comparison-table tbody tr:hover {
    background: #fef3c7;
    cursor: pointer;
}

.fs-comparison-table td {
    padding: 16px 12px;
    text-align: center;
    font-size: 14px;
    border-bottom: 1px solid var(--fs-neutral-200);
}

.fs-comparison-table td:first-child {
    text-align: left;
    padding-left: 20px;
    font-weight: 600;
    color: var(--fs-navy);
    position: sticky;
    left: 0;
    background: #fff;
    z-index: 1;
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.05);
}

.fs-comparison-table tbody tr:nth-child(even) td:first-child {
    background: var(--fs-neutral-50);
}

.fs-comparison-table tbody tr:hover td:first-child {
    background: #fef3c7;
}

.fs-rating {
    display: inline-flex;
    gap: 2px;
}

.fs-rating-star {
    color: var(--fs-neutral-300);
    font-size: 14px;
}

.fs-rating-star.filled {
    color: var(--fs-gold);
}

.fs-scroll-hint {
    display: none;
    text-align: center;
    font-size: 12px;
    color: var(--fs-neutral-500);
    margin-top: 8px;
}

@media (max-width: 640px) {
    .fs-scroll-hint {
        display: block;
    }
}

/* ========================================
   INSIGHT SUMMARY CARDS
   ======================================== */
.fs-insight-summary {
    margin: 32px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.fs-insight-card {
    background: white;
    border: 1px solid var(--fs-border-subtle);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.fs-insight-card:hover {
    box-shadow: var(--fs-shadow-card);
}

.fs-insight-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.fs-insight-header:hover {
    background: var(--fs-warm-beige);
}

.fs-insight-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.fs-insight-card.conclusion .fs-insight-icon {
    background: var(--fs-primary-navy);
    color: white;
}

.fs-insight-card.reason .fs-insight-icon {
    background: var(--fs-accent-gold);
    color: var(--fs-primary-navy);
}

.fs-insight-card.example .fs-insight-icon {
    background: var(--fs-trust-green);
    color: white;
}

.fs-insight-card.caution .fs-insight-icon {
    background: #c53030;
    color: white;
}

.fs-insight-title-area {
    flex: 1;
    min-width: 0;
}

.fs-insight-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.fs-insight-card.conclusion .fs-insight-label { color: var(--fs-primary-navy); }
.fs-insight-card.reason .fs-insight-label { color: var(--fs-accent-gold); }
.fs-insight-card.example .fs-insight-label { color: var(--fs-trust-green); }
.fs-insight-card.caution .fs-insight-label { color: #c53030; }

.fs-insight-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--fs-text-dark);
    line-height: 1.5;
}

.fs-insight-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--fs-neutral-100);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.fs-insight-toggle::after {
    content: '+';
    font-size: 20px;
    font-weight: 300;
    color: var(--fs-text-medium);
    line-height: 1;
}

.fs-insight-card.expanded .fs-insight-toggle {
    background: var(--fs-primary-navy);
    transform: rotate(45deg);
}

.fs-insight-card.expanded .fs-insight-toggle::after {
    color: white;
}

.fs-insight-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.fs-insight-card.expanded .fs-insight-body {
    max-height: 200px;
}

.fs-insight-content {
    padding: 0 24px 20px 88px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--fs-text-medium);
}

@media (max-width: 480px) {
    .fs-insight-header {
        padding: 16px;
        gap: 12px;
    }

    .fs-insight-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .fs-insight-title {
        font-size: 14px;
    }

    .fs-insight-content {
        padding: 0 16px 16px 68px;
    }
}

/* ========================================
   COMBINATION CARDS
   ======================================== */
.fs-combination-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 32px 0;
}

@media (min-width: 640px) {
    .fs-combination-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.fs-combination-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--fs-transition-normal) var(--fs-easing);
    cursor: pointer;
}

.fs-combination-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.fs-combination-header {
    padding: 20px;
    color: #fff;
}

.fs-combination-card[data-color="gold"] .fs-combination-header {
    background: linear-gradient(135deg, var(--fs-accent-gold) 0%, var(--fs-accent-gold-light) 100%);
}

.fs-combination-card[data-color="blue"] .fs-combination-header {
    background: linear-gradient(135deg, var(--fs-primary-navy) 0%, var(--fs-primary-navy-light) 100%);
}

.fs-combination-card[data-color="green"] .fs-combination-header {
    background: linear-gradient(135deg, var(--fs-trust-green) 0%, var(--fs-trust-green-light) 100%);
}

.fs-combination-card[data-color="purple"] .fs-combination-header {
    background: linear-gradient(135deg, #6b4a3a 0%, #8b6554 100%);
}

.fs-combination-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.fs-combination-subtitle {
    font-size: 14px;
    opacity: 0.9;
}

.fs-synergy-score {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 12px;
}

.fs-synergy-label {
    font-size: 12px;
    opacity: 0.8;
}

.fs-synergy-stars {
    display: flex;
    gap: 2px;
}

.fs-synergy-star {
    font-size: 14px;
}

.fs-combination-body {
    padding: 20px;
    display: none;
}

.fs-combination-card.expanded .fs-combination-body {
    display: block;
    animation: fsSlideDown 300ms var(--fs-easing);
}

.fs-combination-benefits {
    margin-bottom: 16px;
}

.fs-combination-benefits .fs-benefit-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--fs-navy);
    margin-bottom: 8px;
}

.fs-combination-benefits ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.fs-combination-benefits li {
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.fs-combination-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--fs-success);
}

.fs-combination-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--fs-secondary);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: gap var(--fs-transition-fast);
}

.fs-combination-link:hover {
    gap: 10px;
}

/* ========================================
   CHARTS
   ======================================== */
.fs-chart-container {
    margin: 32px 0;
    padding: 24px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.fs-chart-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--fs-navy);
    margin-bottom: 20px;
    text-align: center;
}

.fs-chart-wrapper {
    position: relative;
    height: 300px;
}

@media (min-width: 768px) {
    .fs-chart-wrapper {
        height: 400px;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fsFadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fsSlideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 500px;
    }
}

@keyframes fsBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-8px);
    }
}

@keyframes fsCountUp {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Scroll Animation */
.fs-animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all 500ms var(--fs-easing);
}

.fs-animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .fudosan-article-wrap *,
    .fudosan-article-wrap *::before,
    .fudosan-article-wrap *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   SECTION DIVIDER
   ======================================== */
.fudosan-article-wrap hr {
    border: none;
    height: 1px;
    background: var(--fs-neutral-200);
    margin: 32px 0;
}