/* AAP — AdultAntigravityPortal */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;900&display=swap');

:root {
    --bg-primary: #07070d;
    --bg-secondary: #0e0e18;
    --bg-card: #151525;
    --bg-card-hover: #1c1c35;
    --text-primary: #e8e8f0;
    --text-secondary: #7878a0;
    --text-muted: #55557a;
    --accent: #e91e63;
    --accent-hover: #ff4081;
    --accent-glow: rgba(233, 30, 99, 0.3);
    --accent-gold: #ffd700;
    --accent-gold-glow: rgba(255, 215, 0, 0.2);
    --accent-blue: #6c5ce7;
    --accent-purple: #a855f7;
    --border: #1e1e35;
    --border-hover: #2e2e4e;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', 'Hiragino Sans', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   年齢確認ゲート
   =================================== */
.age-gate {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

.age-gate.hidden {
    display: none;
}

.age-gate-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    text-align: center;
    max-width: 460px;
    width: 90%;
    box-shadow: var(--shadow), var(--shadow-glow);
    animation: fadeInScale 0.5s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.age-gate-box .warning-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.age-gate-box h2 {
    font-size: 1.6rem;
    font-weight: 900;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.age-gate-box .age-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.age-gate-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-enter {
    background: linear-gradient(135deg, var(--accent), #c2185b);
    color: #fff;
    border: none;
    padding: 14px 40px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.btn-enter:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-leave {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-leave:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ===================================
   ヘッダー
   =================================== */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    background: rgba(14, 14, 24, 0.9);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: baseline;
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: -1px;
    text-decoration: none;
}

.logo-aap {
    background: linear-gradient(135deg, #e91e63, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-gz {
    color: #ffd700;
    text-shadow: 0 0 12px rgba(255, 215, 0, 0.3);
}

.site-tagline {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.main-nav {
    display: flex;
    gap: 4px;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
}

.main-nav a:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

.main-nav a:hover::after {
    width: 60%;
}

/* ===================================
   ヒーローセクション
   =================================== */
.hero {
    position: relative;
    text-align: center;
    padding: 100px 0 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.4;
}

.hero h2 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 16px;
    position: relative;
    line-height: 1.2;
}

.hero h2 .gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-gold), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 虹色アニメーションテキスト */
.rainbow-text {
    background: linear-gradient(
        90deg,
        #ff0000, #ff8800, #ffff00,
        #00cc00, #0088ff, #8800ff,
        #ff00ff, #ff0000, #ff8800,
        #ffff00, #00cc00, #0088ff
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rainbowFlow 4s linear infinite;
    font-weight: 900;
}

@keyframes rainbowFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

.hero .subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 40px;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 8px 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    position: relative;
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 var(--accent-glow);
    }

    50% {
        opacity: 0.7;
        box-shadow: 0 0 0 8px transparent;
    }
}

/* ===================================
   カテゴリカード
   =================================== */
.categories {
    padding: 0 0 80px;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-primary);
}

.section-title span {
    color: var(--accent);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, var(--card-accent, var(--accent-glow)) 100%);
    opacity: 0;
    transition: var(--transition);
}

.category-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.category-card:hover::before {
    opacity: 0.15;
}

.card-icon {
    font-size: 2.4rem;
    position: relative;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    position: relative;
}

.card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    position: relative;
    line-height: 1.7;
}

.card-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    color: var(--accent);
    background: rgba(233, 30, 99, 0.1);
    padding: 4px 10px;
    border-radius: 100px;
    font-weight: 600;
    position: relative;
    width: fit-content;
}

/* カード別アクセントカラー */
.category-card[data-category="av"] {
    --card-accent: rgba(233, 30, 99, 0.3);
}

.category-card[data-category="doujin"] {
    --card-accent: rgba(168, 85, 247, 0.3);
}

.category-card[data-category="ranking"] {
    --card-accent: rgba(255, 215, 0, 0.3);
}

.category-card[data-category="games"] {
    --card-accent: rgba(108, 92, 231, 0.3);
}

.category-card[data-category="doujin"] .card-tag {
    color: var(--accent-purple);
    background: rgba(168, 85, 247, 0.1);
}

.category-card[data-category="ranking"] .card-tag {
    color: var(--accent-gold);
    background: var(--accent-gold-glow);
}

.category-card[data-category="games"] .card-tag {
    color: var(--accent-blue);
    background: rgba(108, 92, 231, 0.1);
}

.category-card[data-category="goods"] {
    --card-accent: rgba(255, 152, 0, 0.3);
}

.category-card[data-category="goods"] .card-tag {
    color: #ff9800;
    background: rgba(255, 152, 0, 0.1);
}

.category-card[data-category="comics"] {
    --card-accent: rgba(76, 175, 80, 0.3);
}

.category-card[data-category="comics"] .card-tag {
    color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
}

/* ===================================
   FANZA検索フォーム
   =================================== */
.fanza-search-section {
    padding: 0 0 80px;
}

.search-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
}

.search-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(233, 30, 99, 0.05), rgba(168, 85, 247, 0.05));
    pointer-events: none;
}

.search-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
    position: relative;
}

.search-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr auto;
    gap: 12px;
    align-items: end;
    position: relative;
}

.search-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.search-field label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.search-field select,
.search-field input {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.search-field select:focus,
.search-field input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-field select {
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237878a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.search-btn {
    background: linear-gradient(135deg, var(--accent), #c2185b);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    letter-spacing: 0.5px;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.search-note {
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-top: 12px;
    position: relative;
}

@media (max-width: 768px) {
    .search-form {
        grid-template-columns: 1fr 1fr;
    }
    .search-field:nth-child(3) {
        grid-column: span 2;
    }
    .search-btn {
        grid-column: span 2;
    }
}

/* ===================================
   特徴セクション
   =================================== */
.features {
    padding: 0 0 80px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    border-color: var(--border-hover);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   商品カード・アイテムグリッド
   =================================== */
.item-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 40px;
}

@media (min-width: 769px) {
    .item-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


@media (max-width: 768px) {
    .item-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .item-card {
        flex-direction: column;
    }
    .item-thumb {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
    .item-thumb img {
        object-position: center;
    }
    .item-info {
        padding: 8px 12px;
        gap: 0;
    }
    .item-title {
        font-size: 1rem;
        -webkit-line-clamp: 2;
        line-clamp: 2;
    }
    .item-meta {
        padding-top: 0;
    }
    .item-price {
        font-size: 0.85rem;
        padding: 3px 10px;
        flex: 1;
        text-align: center;
    }
    .item-detail-link {
        font-size: 0.85rem;
        padding: 4px 12px;
        flex: 1;
        text-align: center;
    }
}

/* min-width: 1100px の item-grid は上部に統合済み */

.item-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    overflow: hidden;
    display: flex !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

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

.item-rank {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 2;
    background: linear-gradient(135deg, var(--accent-gold), #f0a500);
    color: #000;
    font-size: 0.75rem;
    font-weight: 900;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.4);
}

/* ランキング 金銀銅 */
.rank-gold,
.rank-silver,
.rank-bronze {
    border: 2px solid transparent;
}

.rank-gold {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #ffd700, #ffaa00, #ffe066);
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.6), 0 0 24px rgba(255, 215, 0, 0.4), inset 0 0 8px rgba(255, 255, 255, 0.3);
    animation: rankGlow 2s ease-in-out infinite;
    border-color: #ffe066;
}

.rank-gold::before {
    content: '👑';
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    filter: drop-shadow(0 2px 4px rgba(255, 215, 0, 0.6));
}

.rank-silver {
    width: 38px;
    height: 38px;
    font-size: 1.05rem;
    background: linear-gradient(135deg, #f0f0f0, #b0b0b0, #e0e0e0);
    color: #222;
    box-shadow: 0 4px 12px rgba(192, 192, 192, 0.5), 0 0 16px rgba(192, 192, 192, 0.3), inset 0 0 6px rgba(255, 255, 255, 0.4);
    border-color: #d0d0d0;
}

.rank-silver::before {
    content: '✨';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
}

.rank-bronze {
    width: 36px;
    height: 36px;
    font-size: 1rem;
    background: linear-gradient(135deg, #e8a050, #a0522d, #cd7f32);
    color: #fff;
    box-shadow: 0 4px 12px rgba(205, 127, 50, 0.5), 0 0 16px rgba(205, 127, 50, 0.3), inset 0 0 6px rgba(255, 255, 255, 0.2);
    border-color: #d49a5a;
}

.rank-bronze::before {
    content: '✨';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
}

@keyframes rankGlow {
    0%, 100% { box-shadow: 0 4px 16px rgba(255, 215, 0, 0.6), 0 0 24px rgba(255, 215, 0, 0.4), inset 0 0 8px rgba(255, 255, 255, 0.3); }
    50% { box-shadow: 0 4px 28px rgba(255, 215, 0, 0.9), 0 0 40px rgba(255, 215, 0, 0.6), inset 0 0 12px rgba(255, 255, 255, 0.5); }
}

.item-thumb {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform 0.4s ease;
    background: var(--bg-secondary);
}

.item-card:hover .item-thumb img {
    transform: scale(1.05);
}

.item-info {
    padding: 8px 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
    flex: 1;
}

.item-title {
    font-size: 1.32rem;
    font-weight: 700;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-primary);
    word-break: break-all;
}

.item-circle {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 0;
}

.item-tag {
    font-size: 0.65rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
}

.item-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.item-meta .item-source {
    order: -1;
    width: 100%;
}

@media (max-width: 768px) {
    .item-meta {
        gap: 6px;
    }
    .item-price {
        font-size: 0.85rem;
        padding: 3px 10px;
        flex: 1;
        text-align: center;
    }
    .item-detail-link {
        font-size: 0.85rem;
        padding: 4px 12px;
        flex: 1;
        text-align: center;
    }
}

.item-price {
    font-size: 0.95rem;
    font-weight: 900;
    color: var(--accent);
    padding: 4px 12px;
    background: rgba(233, 30, 99, 0.08);
    border-radius: 6px;
    flex: 1;
    text-align: center;
}

.item-source {
    font-size: 0.55rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.source-fanza {
    background: rgba(233, 30, 99, 0.15);
    color: var(--accent);
}

.source-dlsite {
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent-blue);
}

/* 個別ページ詳細リンク */
.item-detail-link {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-decoration: none;
    padding: 10px 24px;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: var(--transition);
    white-space: nowrap;
    flex: 1;
    text-align: center;
}

.item-detail-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(233, 30, 99, 0.1);
}

/* 更新日時バッジ */
.update-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 4px 14px;
    margin-top: 12px;
}

/* 日付グループヘッダー */
.date-header {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    padding: 16px 0 8px;
    margin-top: 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.date-header:first-child {
    margin-top: 0;
}

/* ランキング折りたたみボタン */
.ranking-toggle-btn {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: 20px auto;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ranking-toggle-btn:hover {
    background: var(--accent-gold);
    color: #000;
    border-color: var(--accent-gold);
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
}

/* ランキングセクション（ジャンル別） */
.ranking-section {
    margin-bottom: 32px;
    padding-bottom: 8px;
}

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

.ranking-section-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    padding: 12px 0 8px;
    margin-bottom: 12px;
    border-left: 3px solid var(--accent);
    padding-left: 12px;
    background: linear-gradient(90deg, rgba(233, 30, 99, 0.08), transparent);
    border-radius: 0 8px 8px 0;
}

/* ナビゲーション アクティブ状態 */
.nav-active {
    color: var(--text-primary) !important;
    background: var(--bg-card);
}

.nav-active::after {
    width: 60% !important;
}

/* ===================================
   個別ページ
   =================================== */
.page-hero {
    padding: 60px 0 40px;
    text-align: center;
}

.page-hero h2 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 8px;
}

.page-hero-desc {
    color: var(--text-secondary);
    font-size: 1rem;
}

.content-grid {
    padding: 0 0 80px;
}

.content-placeholder {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.content-placeholder h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.content-placeholder p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.placeholder-checklist {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
    max-width: 400px;
    margin: 0 auto;
}

.check-item {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 6px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

/* ===================================
   法的ページ（プラポリ・規約・お問い合わせ）
   =================================== */
.legal-content {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 0 80px;
}

.legal-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 32px 0 12px;
    color: var(--text-primary);
}

.legal-content p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.8;
    margin-bottom: 12px;
}

.legal-content ul {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.8;
    padding-left: 24px;
    margin-bottom: 12px;
}

.legal-date {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.8rem;
}

.contact-detail {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    display: inline-block;
}

.contact-note {
    margin-top: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* メールフォーム埋め込み */
.contact-form-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin: 12px 0 24px;
    overflow: hidden;
}

.contact-form-wrap .mailform {
    width: 100%;
    min-height: 500px;
    border: none;
    border-radius: 8px;
}

/* ===================================
   フッター
   =================================== */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
}

.footer-warning {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(233, 30, 99, 0.08);
    border: 1px solid rgba(233, 30, 99, 0.2);
    border-radius: var(--radius);
    padding: 10px 20px;
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text-secondary);
}

.footer-counter {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.7;
    flex-wrap: wrap;
}

.counter-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.counter-sep {
    color: var(--border);
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.7rem;
}

.footer-disclaimer {
    color: var(--text-muted);
    font-size: 0.65rem;
    margin-top: 12px;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   レスポンシブ
   =================================== */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 0.95rem;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        flex-direction: column;
        gap: 12px;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-nav a {
        font-size: 0.8rem;
        padding: 6px 12px;
    }

    .age-gate-box {
        padding: 32px 24px;
    }

    .age-gate-buttons {
        flex-direction: column;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 16px;
    }

    .item-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0 50px;
    }

    .hero h2 {
        font-size: 1.6rem;
    }

    .category-card {
        padding: 24px 20px;
    }
}

/* ===================================
   バナー広告
   =================================== */
.ad-banner-section {
    padding: 0 0 40px;
}

.ad-banner-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    text-align: center;
    position: relative;
}

.ad-banner-label {
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    opacity: 0.6;
}

.ad-banner-embed {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60px;
    overflow: hidden;
}

.ad-banner-embed img {
    max-width: 100%;
    height: auto;
}

/* ===================================
   スライドイン広告
   =================================== */
.slide-in-ad {
    position: fixed;
    top: 80px;
    left: -310px;
    z-index: 9999;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: left 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 284px;
}

.slide-in-ad.visible {
    left: 20px;
}

.slide-in-close {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 0.7rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 1;
}

.slide-in-close:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.slide-in-label {
    font-size: 0.55rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    opacity: 0.6;
    margin-bottom: 6px;
}

.slide-in-content iframe {
    display: block;
    width: 260px;
    height: 274px;
    border: none;
    border-radius: 6px;
    overflow: hidden;
}

@media (max-width: 480px) {
    .slide-in-ad {
        top: auto;
        bottom: 10px;
        left: -100%;
        transform: none;
        width: calc(100vw - 20px);
    }
    .slide-in-ad.visible {
        left: 10px;
    }
    .slide-in-content iframe {
        width: 100%;
    }
}

/* ランク説明 */
.rank-note {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

/* ==========================================
   個別作品ページ
   ========================================== */

.detail-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}
.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.detail-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}
.detail-breadcrumb a:hover { color: var(--accent); }
.detail-breadcrumb .sep { color: var(--text-muted); }

.detail-main {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    margin-bottom: 40px;
    align-items: center;
}
.detail-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    position: relative;
}
.detail-image img {
    width: 100%;
    height: auto;
    display: block;
}
.detail-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.detail-title {
    font-size: 1.3rem;
    font-weight: 800;
    line-height: 1.4;
}
.detail-maker {
    display: flex;
    align-items: center;
    gap: 12px;
}
.detail-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    min-width: 60px;
}
.detail-value {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.detail-tag {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 14px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: var(--transition);
}
.detail-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.detail-price-box {
    display: flex;
    align-items: center;
    gap: 12px;
}
.detail-price {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.detail-rank-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: linear-gradient(135deg, var(--accent-gold), #f0a500);
    color: #000;
    font-weight: 900;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: 100px;
    width: fit-content;
}
.detail-rank-badge .rank-number { font-size: 1.3rem; }
.detail-source {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    width: fit-content;
}
.detail-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #c2185b);
    color: #fff;
    text-decoration: none;
    padding: 16px 40px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 700;
    transition: var(--transition);
    letter-spacing: 0.5px;
    margin-top: 8px;
}
.detail-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

/* サンプル画像ギャラリー */
.sample-section { margin-top: 40px; }
.sample-heading {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.sample-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}
.sample-thumb {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.sample-thumb:hover {
    border-color: var(--accent);
    transform: scale(1.02);
}
.sample-thumb img {
    width: 100%;
    height: auto;
    display: block;
}

/* ライトボックスモーダル */
.sample-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.92);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    user-select: none;
    -webkit-user-select: none;
}
.sample-modal.active { display: flex; }
.sample-modal img {
    max-width: 95vw;
    max-height: 90vh;
    border-radius: var(--radius);
    transition: opacity 0.2s;
}
.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    backdrop-filter: blur(4px);
}
.modal-nav:hover { background: rgba(255,255,255,0.3); }
.modal-prev { left: 20px; }
.modal-next { right: 20px; }
.modal-counter {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    margin-top: 12px;
    font-weight: 600;
}
.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: rgba(255,255,255,0.7);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.2s;
}
.modal-close:hover { color: #fff; }

/* 関連作品 */
.related-section { margin-top: 60px; }
.related-heading {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
}
.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
.related-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}
.related-thumb {
    aspect-ratio: 3/2;
    overflow: hidden;
    background: var(--bg-secondary);
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.related-title {
    padding: 8px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    margin-top: 32px;
}
.back-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}

@media (max-width: 768px) {
    .detail-main {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .detail-title { font-size: 1.1rem; }
    .sample-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    .related-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    }
    .modal-nav {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    .modal-prev { left: 8px; }
    .modal-next { right: 8px; }
}

/* 過去アーカイブセクション */
.past-archive-section {
    margin-top: 40px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.past-archive-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.archive-day-link {
    display: inline-block;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}
.archive-day-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* アーカイブheroボタン */
.archive-hero-btn {
    display: inline-block;
    margin-top: 12px;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition);
}
.archive-hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(var(--accent-rgb, 139, 92, 246), 0.4);
}