/**
 * YZ Index JP - 統合CSSスタイル（ライトテーマ・和モダン）
 * 対象: yz-index 全ページ共通
 */

/* =====================================================
   CSS カスタムプロパティ（ライトテーマ）
   ===================================================== */
:root {
    --yz-bg: #ffffff;
    --yz-bg-subtle: #fafaf9;
    --yz-bg-muted: #f5f5f3;
    --yz-border: #e5e5e3;
    --yz-border-light: #d4d4d2;
    --yz-text: #1c1c1e;
    --yz-text-secondary: #6b6b6e;
    --yz-text-muted: #9b9b9e;
    --yz-accent: #c5342e;
    --yz-accent-light: #d94f49;
    --yz-accent-bg: rgba(197, 52, 46, 0.06);
    --yz-gold: #b8860b;
    --yz-gold-light: #d4a017;
    --yz-green: #16a34a;
    --yz-green-bg: rgba(22, 163, 74, 0.08);
    --yz-red: #dc2626;
    --yz-red-bg: rgba(220, 38, 38, 0.08);
    --yz-yellow: #ca8a04;
    --yz-yellow-bg: rgba(202, 138, 4, 0.08);
    --yz-card: #ffffff;
    --yz-card-hover: #fafaf9;
    --yz-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --yz-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --yz-shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
    --yz-radius: 10px;
    --yz-radius-sm: 6px;
    --yz-font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --yz-font-serif: 'Noto Serif JP', 'Noto Sans JP', serif;
}

/* =====================================================
   ベースレイアウト
   ===================================================== */
.yz-main {
    background: var(--yz-bg);
    padding-bottom: 3rem;
}

.yz-main .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* =====================================================
   サブナビゲーション (.yz-nav)
   ===================================================== */
.yz-nav {
    background: var(--yz-bg);
    border-bottom: 1px solid var(--yz-border);
    position: sticky;
    top: 0;
    z-index: 90;
}

.yz-nav__inner {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 0 1.25rem;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.yz-nav__inner::-webkit-scrollbar {
    display: none;
}

.yz-nav__item {
    flex-shrink: 0;
}

.yz-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.75rem 0.85rem;
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--yz-text-secondary);
    text-decoration: none;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.yz-nav__link:hover {
    color: var(--yz-text);
}

.yz-nav__link--active {
    color: var(--yz-accent);
    border-bottom-color: var(--yz-accent);
    font-weight: 600;
}

.yz-nav__link--home {
    font-weight: 600;
}

.yz-nav__sep {
    width: 1px;
    height: 20px;
    background: var(--yz-border);
    margin: 0 0.25rem;
    flex-shrink: 0;
}

/* =====================================================
   ドロップダウン (.yz-dropdown)
   ===================================================== */
.yz-dropdown {
    position: relative;
    flex-shrink: 0;
}

.yz-dropdown__btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.75rem 0.85rem;
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--yz-text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color 0.2s;
    font-family: var(--yz-font);
}

.yz-dropdown__btn:hover {
    color: var(--yz-text);
}

.yz-dropdown__btn--active {
    color: var(--yz-accent);
    border-bottom-color: var(--yz-accent);
    font-weight: 600;
}

.yz-dropdown__btn svg {
    width: 10px;
    height: 6px;
    transition: transform 0.2s;
}

.yz-dropdown[data-open="1"] .yz-dropdown__btn svg {
    transform: rotate(180deg);
}

.yz-dropdown__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--yz-card);
    border: 1px solid var(--yz-border);
    border-radius: var(--yz-radius);
    box-shadow: var(--yz-shadow-lg);
    padding: 0.4rem 0;
    z-index: 100;
}

.yz-dropdown[data-open="1"] .yz-dropdown__menu {
    display: block;
}

.yz-dropdown__menu a {
    display: block;
    padding: 0.55rem 1rem;
    font-size: 0.84rem;
    color: var(--yz-text-secondary);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.yz-dropdown__menu a:hover {
    background: var(--yz-bg-muted);
    color: var(--yz-text);
}

.yz-dropdown__menu--active {
    color: var(--yz-accent) !important;
    font-weight: 600;
    background: var(--yz-accent-bg);
}

/* =====================================================
   パンくずリスト
   ===================================================== */
.yz-breadcrumb {
    padding: 0.75rem 0;
    font-size: 0.83rem;
    color: var(--yz-text-muted);
}

.yz-breadcrumb a {
    color: var(--yz-text-secondary);
    text-decoration: none;
}

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

.yz-breadcrumb__sep {
    margin: 0 0.4rem;
    color: var(--yz-border-light);
}

/* =====================================================
   ヒーローセクション（ホーム用）
   ===================================================== */
.yz-home-hero {
    text-align: center;
    padding: 3rem 0 2rem;
}

.yz-home-hero__row {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 2.5rem;
    text-align: left;
}

.yz-home-hero__left {
    flex: 1;
    min-width: 0;
    text-align: center;
}

.yz-home-hero__badge {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: linear-gradient(135deg, var(--yz-accent), #8b2920);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 1.25rem;
}

.yz-home-hero__title {
    font-family: var(--yz-font-serif);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--yz-text);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.yz-home-hero__subtitle {
    color: var(--yz-text-secondary);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.yz-home-hero__stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: var(--yz-text-secondary);
    font-size: 0.84rem;
}

.yz-home-hero__stats span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.yz-home-hero__stats i {
    color: var(--yz-accent);
    font-size: 0.8rem;
}

.yz-home-hero__status-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.25rem;
    padding: 0.75rem 1.25rem;
    background: var(--yz-bg-muted);
    border: 1px solid var(--yz-border);
    border-radius: var(--yz-radius);
    font-size: 0.78rem;
    color: var(--yz-text-secondary);
}

.yz-home-hero__status-bar span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.yz-home-hero__status-bar i {
    color: var(--yz-accent);
    font-size: 0.72rem;
}

/* =====================================================
   CTAボタン
   ===================================================== */
.yz-home-hero__cta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.yz-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    border: 1px solid var(--yz-border);
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--yz-text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    background: var(--yz-bg);
}

.yz-cta-btn:hover {
    border-color: var(--yz-accent);
    color: var(--yz-accent);
    background: var(--yz-accent-bg);
}

.yz-cta-btn--primary {
    background: var(--yz-accent);
    border-color: transparent;
    color: #fff;
    font-weight: 600;
}

.yz-cta-btn--primary:hover {
    background: var(--yz-accent-light);
    color: #fff;
}

/* =====================================================
   スナップショットカード
   ===================================================== */
.yz-home-snapshot {
    flex-shrink: 0;
    width: 280px;
    background: var(--yz-bg-subtle);
    border: 1px solid var(--yz-border);
    border-radius: 12px;
    padding: 1.25rem;
}

.yz-home-snapshot__title {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--yz-accent);
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.yz-home-snapshot__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.yz-home-snapshot__list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--yz-border);
    font-size: 0.82rem;
}

.yz-home-snapshot__list li:last-child {
    border-bottom: none;
}

.yz-home-snapshot__label {
    color: var(--yz-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.yz-home-snapshot__label i {
    font-size: 0.7rem;
    color: var(--yz-accent);
    width: 14px;
    text-align: center;
}

.yz-home-snapshot__value {
    font-weight: 600;
    color: var(--yz-text);
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 140px;
}

.yz-home-snapshot__item--up .yz-home-snapshot__label i { color: var(--yz-green); }
.yz-home-snapshot__item--up .yz-home-snapshot__value strong { color: var(--yz-green); }
.yz-home-snapshot__item--down .yz-home-snapshot__label i { color: var(--yz-red); }
.yz-home-snapshot__item--down .yz-home-snapshot__value strong { color: var(--yz-red); }

/* =====================================================
   セクション共通
   ===================================================== */
.yz-home-section {
    margin-bottom: 2.5rem;
}

.yz-home-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--yz-border);
}

.yz-home-section__header h2 {
    font-family: var(--yz-font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--yz-text);
}

.yz-home-section__header h2 i {
    color: var(--yz-accent);
}

.yz-home-section__week {
    font-size: 0.78rem;
    color: var(--yz-text-muted);
    padding: 0.2rem 0.7rem;
    border: 1px solid var(--yz-border);
    border-radius: 12px;
}

.yz-home-section__link {
    font-size: 0.82rem;
    color: var(--yz-accent);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
    text-decoration: none;
}

.yz-home-section__link:hover {
    color: var(--yz-accent-light);
}

/* =====================================================
   ハイライトカード
   ===================================================== */
.yz-home-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.yz-highlight-card {
    background: var(--yz-card);
    border: 1px solid var(--yz-border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.2s;
    display: block;
    text-decoration: none;
    color: var(--yz-text);
}

.yz-highlight-card:hover {
    border-color: var(--yz-border-light);
    transform: translateY(-2px);
    box-shadow: var(--yz-shadow-md);
}

.yz-highlight-card--featured {
    border-color: rgba(197, 52, 46, 0.25);
    background: linear-gradient(135deg, var(--yz-card) 0%, var(--yz-accent-bg) 100%);
}

.yz-highlight-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.6rem;
}

.yz-highlight-card__icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--yz-bg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.yz-highlight-card__delta {
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.yz-highlight-card__delta.up { color: var(--yz-green); }
.yz-highlight-card__delta.down { color: var(--yz-red); }
.yz-highlight-card__delta.stable { color: var(--yz-text-muted); }

.yz-highlight-card__name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--yz-text);
}

.yz-highlight-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.yz-highlight-card__dim {
    font-size: 0.72rem;
    color: var(--yz-text-muted);
    padding: 0.15rem 0.6rem;
    background: var(--yz-bg-muted);
    border-radius: 10px;
}

.yz-highlight-card__run-type {
    font-size: 0.68rem;
    color: var(--yz-text-muted);
    padding: 0.1rem 0.5rem;
    border: 1px solid var(--yz-border);
    border-radius: 8px;
}

.yz-highlight-card__run-type--full {
    color: var(--yz-gold);
    border-color: rgba(184, 134, 11, 0.25);
    background: rgba(184, 134, 11, 0.06);
}

/* =====================================================
   入口カード (.yz-entry-card)
   ===================================================== */
.yz-entry-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.yz-entry-card {
    background: var(--yz-card);
    border: 1px solid var(--yz-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.2s;
    display: block;
    text-decoration: none;
    color: var(--yz-text);
}

.yz-entry-card:hover {
    border-color: var(--yz-accent);
    transform: translateY(-2px);
    box-shadow: var(--yz-shadow-md);
}

.yz-entry-card__icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--yz-accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--yz-accent);
    margin-bottom: 0.75rem;
}

.yz-entry-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--yz-text);
}

.yz-entry-card p {
    font-size: 0.82rem;
    color: var(--yz-text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* =====================================================
   テーブル共通 (.yz-table)
   ===================================================== */
.yz-table-wrap {
    overflow-x: auto;
    margin-bottom: 2rem;
    border: 1px solid var(--yz-border);
    border-radius: 12px;
    background: var(--yz-card);
    box-shadow: var(--yz-shadow-sm);
}

.yz-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.yz-table thead {
    background: var(--yz-bg-muted);
    border-bottom: 1px solid var(--yz-border);
}

.yz-table th {
    padding: 1rem 0.75rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--yz-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.yz-table td {
    padding: 0.9rem 0.75rem;
    border-bottom: 1px solid var(--yz-border);
    color: var(--yz-text);
}

.yz-table__row:last-child td {
    border-bottom: none;
}

.yz-table__row {
    transition: background 0.15s;
}

.yz-table__row:hover {
    background: var(--yz-bg-subtle);
}

/* ランク列 */
.yz-table__rank {
    width: 50px;
    text-align: center !important;
    font-size: 1.1rem;
}

.yz-table__row--top1 .yz-table__rank { font-size: 1.3rem; }
.yz-table__row--top2 .yz-table__rank { font-size: 1.2rem; }

.yz-table__row--top1 {
    background: rgba(184, 134, 11, 0.06);
}

.yz-table__row--top1:hover {
    background: rgba(184, 134, 11, 0.1);
}

.yz-table__row--top2 {
    background: rgba(184, 134, 11, 0.03);
}

.yz-table__row--top3 {
    background: rgba(184, 134, 11, 0.015);
}

/* モデル列 */
.yz-table__model {
    min-width: 200px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

th.yz-table__model {
    display: table-cell;
}

.yz-table__provider-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--yz-bg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.yz-table__model-name {
    font-weight: 600;
    color: var(--yz-text);
    white-space: nowrap;
}

a.yz-table__model-name {
    text-decoration: none;
}

a.yz-table__model-name:hover {
    color: var(--yz-accent);
}

.yz-table__provider-label {
    font-size: 0.72rem;
    color: var(--yz-text-muted);
    white-space: nowrap;
}

/* スコア列 */
.yz-table__score {
    text-align: center !important;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    min-width: 60px;
}

.yz-table__score--main {
    min-width: 140px;
}

/* =====================================================
   スコアバー (.yz-score-bar)
   ===================================================== */
.yz-score-bar {
    position: relative;
    height: 28px;
    background: var(--yz-bg-muted);
    border-radius: 6px;
    overflow: hidden;
    min-width: 100px;
}

.yz-score-bar__fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    border-radius: 6px;
    background: linear-gradient(90deg, var(--yz-accent), var(--yz-gold));
    transition: width 0.6s ease;
    opacity: 0.2;
}

.yz-table__row--top1 .yz-score-bar__fill {
    background: linear-gradient(90deg, var(--yz-gold), var(--yz-gold-light));
    opacity: 0.3;
}

.yz-score-bar__num {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--yz-text);
}

/* =====================================================
   バージョンバッジ (.yz-version-badge)
   ===================================================== */
.yz-version-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
    padding: 0.2em 0.65em;
    font-size: 0.76rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--yz-text-muted);
    background: var(--yz-bg-muted);
    border: 1px solid var(--yz-border);
    border-radius: 6px;
    white-space: nowrap;
}

.yz-version-badge i {
    font-size: 0.7em;
    opacity: 0.6;
}

/* マイグレーションバッジ */
.yz-migration-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    padding: 0.15em 0.55em;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--yz-yellow);
    background: var(--yz-yellow-bg);
    border: 1px solid rgba(202, 138, 4, 0.3);
    border-radius: 5px;
    white-space: nowrap;
}

.yz-migration-badge i {
    font-size: 0.7em;
}

/* =====================================================
   About セクション
   ===================================================== */
.yz-home-about {
    background: var(--yz-bg-subtle);
    border: 1px solid var(--yz-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
    text-align: center;
}

.yz-home-about h2 {
    font-family: var(--yz-font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--yz-accent);
}

.yz-home-about__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.yz-home-about__item {
    text-align: center;
}

.yz-home-about__num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--yz-text);
    line-height: 1.2;
}

.yz-home-about__label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--yz-accent);
    margin: 0.25rem 0;
}

.yz-home-about__detail {
    font-size: 0.75rem;
    color: var(--yz-text-secondary);
    line-height: 1.4;
}

.yz-home-about__footer {
    font-size: 0.88rem;
    color: var(--yz-text-secondary);
    padding-top: 1.25rem;
    border-top: 1px solid var(--yz-border);
}

.yz-home-about__footer strong {
    color: var(--yz-text);
}

/* =====================================================
   ランキングヒーロー
   ===================================================== */
.yz-hero {
    text-align: center;
    padding: 2.5rem 0 2rem;
}

.yz-hero__badge {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: linear-gradient(135deg, var(--yz-accent), #8b2920);
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 1rem;
}

.yz-hero__title {
    font-family: var(--yz-font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--yz-text);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.yz-hero__icon {
    color: var(--yz-accent);
    margin-right: 0.3rem;
}

.yz-hero__desc {
    color: var(--yz-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* タブボタン（ランキングページ上部） */
.yz-hero__weeks {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.yz-week-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.9rem;
    border: 1px solid var(--yz-border);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--yz-text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    background: var(--yz-bg);
}

.yz-week-btn:hover {
    border-color: var(--yz-accent);
    color: var(--yz-accent);
}

.yz-week-btn.active {
    background: var(--yz-accent);
    border-color: var(--yz-accent);
    color: #fff;
    font-weight: 600;
}

/* =====================================================
   フッター情報
   ===================================================== */
.yz-footer-info {
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.82rem;
    color: var(--yz-text-secondary);
    border-top: 1px solid var(--yz-border);
    margin-top: 1rem;
}

.yz-footer-info p {
    margin: 0.35rem 0;
}

.yz-footer-info__brand {
    margin-top: 0.75rem !important;
    color: var(--yz-text-muted);
}

.yz-footer-info__brand strong {
    color: var(--yz-text);
}

/* =====================================================
   空状態
   ===================================================== */
.yz-empty {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--yz-text-muted);
}

.yz-empty__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.4;
}

.yz-empty p {
    font-size: 1rem;
}

/* =====================================================
   FAQ セクション
   ===================================================== */
.yz-faq-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--yz-border);
    padding-bottom: 1rem;
}

.yz-faq-item summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--yz-text);
    padding: 0.25rem 0;
}

.yz-faq-item summary:hover {
    color: var(--yz-accent);
}

.yz-faq-item p {
    margin: 0.75rem 0 0;
    font-size: 0.88rem;
    color: var(--yz-text-secondary);
    line-height: 1.7;
}

/* =====================================================
   テキストブロック（方法論・About等）
   ===================================================== */
.yz-prose {
    max-width: 800px;
    margin: 0 auto;
    font-size: 0.9rem;
    color: var(--yz-text-secondary);
    line-height: 1.8;
}

.yz-prose p {
    margin: 0 0 1rem;
}

.yz-prose strong {
    color: var(--yz-text);
}

/* =====================================================
   サイドパネル警告
   ===================================================== */
.yz-side-panel-warn {
    background: var(--yz-yellow-bg);
    border: 1px solid rgba(202, 138, 4, 0.3);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin: 0 0 1rem;
    font-size: 0.85rem;
    color: var(--yz-yellow);
}

.yz-side-panel-warn strong {
    font-weight: 700;
}

/* =====================================================
   レスポンシブ
   ===================================================== */
@media (max-width: 768px) {
    .yz-home-hero { padding: 2rem 0 1.5rem; }
    .yz-home-hero__title { font-size: 1.8rem; }
    .yz-home-hero__stats { gap: 1rem; }

    .yz-home-hero__row {
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
    }

    .yz-home-snapshot { width: 100%; }
    .yz-home-highlights { grid-template-columns: 1fr; }
    .yz-entry-cards { grid-template-columns: repeat(2, 1fr); }

    .yz-home-about__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .yz-hero__title { font-size: 1.6rem; }

    .yz-table { font-size: 0.82rem; }
    .yz-table th, .yz-table td { padding: 0.7rem 0.5rem; }
    .yz-table__model { min-width: 150px; }
    .yz-table__provider-label { display: none; }
    .yz-table__score--main { min-width: 100px; }
    .yz-score-bar { min-width: 70px; }
}

@media (max-width: 480px) {
    .yz-home-hero__title { font-size: 1.5rem; }
    .yz-home-hero__stats { flex-direction: column; gap: 0.5rem; }
    .yz-home-hero__cta { flex-direction: column; align-items: stretch; }
    .yz-cta-btn { justify-content: center; }

    .yz-home-hero__status-bar {
        flex-direction: column;
        gap: 0.4rem;
        padding: 0.6rem 1rem;
        font-size: 0.72rem;
    }

    .yz-home-snapshot__value { max-width: 120px; font-size: 0.78rem; }
    .yz-home-snapshot__label { font-size: 0.75rem; }
    .yz-home-snapshot__list li { padding: 0.35rem 0; }

    .yz-entry-cards { grid-template-columns: 1fr; }

    .yz-home-about__grid { grid-template-columns: repeat(2, 1fr); }
    .yz-home-about__num { font-size: 1.5rem; }
    .yz-home-about { padding: 1.25rem; }

    .yz-hero__title { font-size: 1.3rem; }
    .yz-hero__weeks { gap: 0.35rem; }
    .yz-week-btn { font-size: 0.75rem; padding: 0.35rem 0.65rem; }

    .yz-table__provider-icon { display: none; }
    .yz-table th, .yz-table td { padding: 0.6rem 0.35rem; }
    .yz-table { font-size: 0.75rem; }
    .yz-table__model { min-width: 110px; }
    .yz-table__score { min-width: 45px; font-size: 0.72rem; }
    .yz-table__score--main { min-width: 80px; }
    .yz-score-bar { min-width: 55px; height: 24px; }
    .yz-score-bar__num { font-size: 0.75rem; }
    .yz-table__rank { width: 36px; font-size: 0.95rem; }
    .yz-table th { white-space: normal; font-size: 0.7rem; }
}

@media (max-width: 375px) {
    .yz-home-hero__title { font-size: 1.3rem; }
    .yz-home-hero__subtitle { font-size: 0.85rem; }
    .yz-home-snapshot { padding: 1rem; }
    .yz-home-snapshot__value { max-width: 100px; }

    .yz-table { font-size: 0.7rem; }
    .yz-table__model { min-width: 90px; }
    .yz-table__score { min-width: 38px; font-size: 0.68rem; }
    .yz-table__score--main { min-width: 65px; }
    .yz-score-bar { min-width: 45px; height: 22px; }
    .yz-score-bar__num { font-size: 0.7rem; }
    .yz-table__rank { width: 30px; font-size: 0.85rem; }
    .yz-table th, .yz-table td { padding: 0.5rem 0.25rem; }
    .yz-table__model-name { font-size: 0.72rem; }
}

@media (prefers-reduced-motion: reduce) {
    .yz-highlight-card,
    .yz-entry-card,
    .yz-table__row,
    .yz-score-bar__fill {
        transition: none;
    }
}