/* --- 和の伝統色 ＆ トーンマナー --- */
    :root {
      --bg-base: #F8F7F5;           /* 胡粉（ごふん）のような温かみのある白 */
      --card-bg: #FFFFFF;
      --brand-green: #2D4B3E;       /* 千歳緑（ちとせみどり）：落ち着いた深緑 */
      --brand-red: #B22222;         /* 深緋（こきひ）：落款のような渋い赤 */
      --brand-peach: #FAD4C0;       /* 桃色/洗朱：岡山のあたたかさを出すアクセント */
      --text-main: #33312E;         /* 墨色（真っ黒ではなく、やや茶色がかった墨） */
      --text-sub: #706B65;          /* 灰褐色 */
      
      --shadow-soft: 0 12px 35px rgba(0, 0, 0, 0.035);
      --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.06);
      
      --font-mincho: 'Shippori Mincho', serif;
      --font-sans: 'Noto Sans JP', sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background-color: var(--bg-base);
      /* 和風のあしらい：ごく薄い七宝（しっぽう）文様のCSS背景 */
      background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 20c-5.523 0-10-4.477-10-10S14.477 0 20 0s10 4.477 10 10-4.477 10-10 10zm0 20c-5.523 0-10-4.477-10-10s4.477-10 10-10 10 4.477 10 10-4.477 10-10 10zm-20-20C0 14.477 4.477 10 10 10s10 4.477 10 10-4.477 10-10 10S0 25.523 0 20zm40 0c0-5.523-4.477-10-10-10s-10 4.477-10 10 4.477 10 10 10 10-4.477 10-10 10z' fill='%23DCD8D0' fill-opacity='0.15' fill-rule='evenodd'/%3E%3C/svg%3E");
      color: var(--text-main);
      font-family: var(--font-sans);
      line-height: 1.85;
      letter-spacing: 0.05em;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    /* --- メインビジュアル --- */
    .hero-header {
      padding: 90px 20px 70px;
      text-align: center;
      background:
        linear-gradient(rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.86)),
        url("../images/renku-okayama-kukai-02.jpg") center / cover no-repeat;
      backdrop-filter: blur(5px);
    }

    .hero-inner {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
    }

    /* 和のあしらい：短冊（たんざく）風のバッジ */
    .hero-badge {
      display: inline-block;
      background: var(--brand-peach);
      color: var(--brand-red);
      font-weight: 700;
      font-size: 0.9rem;
      padding: 6px 24px;
      border-radius: 2px;
      margin-bottom: 24px;
      letter-spacing: 0.1em;
      font-family: var(--font-mincho);
    }

    /* 和のあしらい：落款（らっかん）スタンプ */
    .rakkan {
      position: absolute;
      top: -10px;
      right: 50%;
      margin-right: -140px;
      width: 42px;
      height: 42px;
      border: 2px solid var(--brand-red);
      color: var(--brand-red);
      font-family: var(--font-mincho);
      font-size: 0.8rem;
      font-weight: 800;
      line-height: 1.15;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px 3px 6px 4px; /* 手彫り風のいびつな形 */
      transform: rotate(8deg);
      background: rgba(255,255,255,0.9);
      opacity: 0.9;
    }

    .hero-title {
      font-family: var(--font-mincho);
      font-size: 3.4rem;
      font-weight: 800;
      color: var(--brand-green);
      line-height: 1.2;
      margin-bottom: 15px;
      letter-spacing: 0.15em;
    }

    .hero-sub {
      font-size: 1.05rem;
      font-weight: 500;
      color: var(--text-main);
      letter-spacing: 0.08em;
    }

    /* --- 固定ナビゲーション --- */
    nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    }

    nav ul {
      display: flex;
      justify-content: center;
      list-style: none;
      flex-wrap: wrap;
      max-width: 900px;
      margin: 0 auto;
      padding: 5px 0;
    }

    nav li a {
      display: block;
      padding: 16px 20px;
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 500;
      transition: color 0.3s;
    }

    nav li a:hover {
      color: var(--brand-red);
    }

    /* --- メインコンテンツ --- */
    .container {
      max-width: 820px;
      margin: 0 auto;
      padding: 70px 20px;
    }

    section {
      margin-bottom: 60px;
    }

    .zukan-card {
      background: var(--card-bg);
      border-radius: 4px; /* 和風は角を丸めすぎず、少しシャープに */
      box-shadow: var(--shadow-soft);
      padding: 50px 55px;
      transition: transform 0.3s, box-shadow 0.3s;
    }

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

    /* スクロールで現れるフェードイン（JS有効時のみ。html.jsが付く前提の安全なプログレッシブエンハンスメント） */
    .js .zukan-card:not(.is-visible) {
      opacity: 0;
      transform: translateY(28px);
    }

    .js .zukan-card {
      transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s;
    }

    @media (prefers-reduced-motion: reduce) {
      .js .zukan-card:not(.is-visible) {
        opacity: 1;
        transform: none;
      }
    }

    /* --- 和のあしらい：カードヘッダー --- */
    .card-head {
      display: flex;
      align-items: center;
      gap: 18px;
      margin-bottom: 28px;
    }

    /* 印鑑や木札を模したインデックス */
    .card-num {
      background: var(--brand-green);
      color: #FFFFFF;
      font-family: var(--font-mincho);
      font-weight: 700;
      font-size: 1rem;
      padding: 6px 14px;
      border-radius: 2px;
      letter-spacing: 0.05em;
      position: relative;
    }
    
    .card-num.red {
      background: var(--brand-red);
    }

    .card-title {
      font-family: var(--font-mincho);
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.05em;
    }

    .lead-txt {
      font-weight: 700;
      font-size: 1.15rem;
      color: var(--brand-green);
      margin-bottom: 18px;
    }

    .body-txt {
      font-size: 0.98rem;
      color: var(--text-sub);
      margin-bottom: 18px;
      line-height: 1.9;
    }

    /* 和のあしらい：余白と背景色で作る注釈枠（和紙風の色合い） */
    .pop-box {
      background: #F4F5F2; /* うすい抹茶・灰白色系 */
      border-radius: 2px;
      padding: 24px 28px;
      margin-top: 30px;
      border-left: 4px solid var(--brand-green); /* 水引きのような細いアクセント */
    }

    .pop-box h4 {
      font-family: var(--font-mincho);
      font-size: 1.1rem;
      color: var(--brand-green);
      font-weight: 700;
      margin-bottom: 10px;
    }

    /* --- 概要リスト（例会情報・受付窓口） --- */
    .info-list {
      list-style: none;
      margin-top: 26px;
      border-top: 1px solid #EAE8E3;
    }

    .info-list li {
      display: flex;
      flex-direction: column;
      gap: 4px;
      padding: 16px 4px;
      border-bottom: 1px solid #EAE8E3;
      font-size: 0.98rem;
      color: var(--text-sub);
      line-height: 1.8;
    }

    @media (min-width: 560px) {
      .info-list li {
        flex-direction: row;
        gap: 24px;
        align-items: baseline;
      }

      /* 会場欄はラベルの下にコンテンツ（地図含む）を全幅で表示 */
      .info-list li.venue-item {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
      }
    }

    .info-label {
      font-family: var(--font-mincho);
      font-weight: 700;
      color: var(--brand-green);
      width: 100px;
      flex-shrink: 0;
      font-size: 0.95rem;
    }

    .info-list .note {
      display: block;
      font-size: 0.88rem;
      opacity: 0.85;
      margin-top: 2px;
    }

    .info-list a {
      color: var(--brand-red);
      border-bottom: 1px solid rgba(178, 34, 34, 0.3);
      transition: opacity 0.3s;
    }

    .info-list a:hover {
      opacity: 0.7;
    }

    /* --- 電話番号のボタン表示 --- */
    a.tel-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 24px;
      background: var(--brand-green);
      color: #FFFFFF;
      font-family: var(--font-mincho);
      font-weight: 700;
      font-size: 1.05rem;
      border-radius: 2px;
      border-bottom: none;
      transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    }

    .tel-icon {
      flex-shrink: 0;
    }

    a.tel-btn:hover {
      background: var(--brand-red);
      opacity: 1;
      transform: translateY(-2px);
      box-shadow: var(--shadow-soft);
    }

    /* --- 会場：住所＋写真＋Googleマップ --- */
    .venue-top {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-start;
      gap: 20px;
      margin-bottom: 18px;
    }

    .venue-address {
      flex: 0 1 auto;
    }

    .venue-photo {
      flex: 1 1 160px;
      min-width: 160px;
      overflow: hidden;
      border-radius: 4px;
      box-shadow: var(--shadow-soft);
    }

    .venue-photo img {
      display: block;
      width: 100%;
      height: 150px;
      object-fit: cover;
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .venue-photo:hover img {
      transform: scale(1.07);
    }

    .venue-photo figcaption {
      margin-top: 8px;
      font-size: 0.85rem;
      color: var(--text-sub);
      text-align: center;
    }

    .venue-map {
      width: 100%;
      height: 260px;
      border-radius: 4px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .venue-map iframe {
      width: 100%;
      height: 100%;
      border: 0;
      display: block;
    }

    /* --- 新着情報 (News) --- */
    .news-list {
      list-style: none;
    }

    .news-item {
      padding: 18px 0;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.98rem;
      border-bottom: 1px solid #EAE8E3;
    }

    .news-item:last-child {
      border-bottom: none;
    }

    @media (min-width: 520px) {
      .news-item {
        flex-direction: row;
        align-items: center;
        gap: 22px;
      }
    }

    .news-date {
      font-family: var(--font-mincho);
      font-weight: 700;
      color: var(--text-sub);
      font-size: 0.95rem;
      width: 95px;
      flex-shrink: 0;
    }

    .news-badge {
      font-size: 0.8rem;
      font-weight: 500;
      padding: 4px 14px;
      background: var(--brand-green);
      color: #FFFFFF;
      border-radius: 2px;
      flex-shrink: 0;
      text-align: center;
    }

    .news-badge.event {
      background: var(--brand-red);
    }

    .news-item a {
      transition: color 0.3s;
    }

    .news-item a:hover {
      color: var(--brand-red);
    }

    /* --- 会費カード --- */
    .fee-box-inner {
      display: flex;
      align-items: flex-start;
      justify-content: center;
      flex-wrap: wrap;
      gap: 20px 50px;
      text-align: center;
      padding: 45px 20px;
      background: #FAF6F4; /* 桜・桃の気配を感じる白 */
      border-radius: 2px;
      margin-top: 15px;
    }

    .fee-item {
      width: 220px;
      max-width: 260px;
    }

    .fee-item + .fee-item {
      border-left: 1px solid rgba(0,0,0,0.1);
      padding-left: 50px;
    }

    .fee-label {
      font-size: 1.05rem;
      font-weight: 500;
      color: var(--text-sub);
    }

    .fee-price {
      font-family: var(--font-mincho);
      font-size: 3.2rem;
      font-weight: 800;
      color: var(--brand-red);
      margin: 10px 0 15px;
    }

    .fee-unit {
      font-size: 0.5em;
    }

    .fee-note {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* --- 例会・会場の写真ギャラリー --- */
    .photo-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 18px;
      margin-top: 30px;
      list-style: none;
    }

    .photo-gallery figure {
      overflow: hidden;
      border-radius: 4px;
      box-shadow: var(--shadow-soft);
    }

    .photo-gallery img {
      display: block;
      width: 100%;
      height: 180px;
      object-fit: cover;
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .photo-gallery figure:hover img {
      transform: scale(1.07);
    }

    .photo-gallery figcaption {
      margin-top: 8px;
      font-size: 0.85rem;
      color: var(--text-sub);
      text-align: center;
    }

    /* --- お問い合わせフォーム --- */
    .contact-form {
      background: var(--bg-base);
      border-radius: 2px;
      padding: 40px 30px;
      margin-top: 30px;
    }

    .form-field {
      margin-bottom: 22px;
    }

    .form-field label {
      display: block;
      font-family: var(--font-mincho);
      font-weight: 700;
      color: var(--brand-green);
      margin-bottom: 8px;
      font-size: 0.95rem;
    }

    .form-field input,
    .form-field textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #DCD8D0;
      border-radius: 2px;
      background: var(--card-bg);
      color: var(--text-main);
      font-family: var(--font-sans);
      font-size: 0.98rem;
    }

    .form-field textarea {
      resize: vertical;
    }

    .form-note {
      font-size: 0.82rem;
      color: var(--text-sub);
      margin-top: 6px;
    }

    .hp-field {
      position: absolute;
      left: -9999px;
    }

    .form-submit {
      display: block;
      width: 100%;
      padding: 16px;
      background: var(--brand-green);
      color: #FFFFFF;
      font-family: var(--font-mincho);
      font-weight: 700;
      font-size: 1.05rem;
      border: none;
      border-radius: 2px;
      cursor: pointer;
      transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    }

    .form-submit:hover {
      background: var(--brand-red);
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }

    /* --- ページャー（新着情報一覧） --- */
    .pager {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 6px;
      margin: 30px 0;
    }

    .pager a {
      display: inline-block;
      padding: 8px 14px;
      background: var(--bg-base);
      border-radius: 2px;
      font-size: 0.9rem;
      color: var(--text-main);
      transition: all 0.3s;
    }

    .pager a:hover {
      background: var(--brand-peach);
      color: var(--brand-red);
    }

    .pager a.current {
      background: var(--brand-green);
      color: #FFFFFF;
    }

    .pager .overPagerPattern {
      display: inline-flex;
      align-items: center;
      padding: 0 4px;
      color: var(--text-sub);
    }

    /* --- フッター --- */
    footer {
      background: var(--brand-green);
      color: rgba(255,255,255,0.8);
      text-align: center;
      padding: 45px 20px;
      font-size: 0.85rem;
      font-weight: 500;
      letter-spacing: 0.1em;
    }

    /* フッター内・関連リンク（質素な一列表示） */
    .footer-links-label {
      font-size: 0.75rem;
      color: rgba(255,255,255,0.5);
      letter-spacing: 0.15em;
      margin-bottom: 12px;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      list-style: none;
      gap: 0;
      margin-bottom: 22px;
    }

    .footer-links li {
      position: relative;
      padding: 0 16px;
    }

    .footer-links li + li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 1px;
      height: 12px;
      background: rgba(255,255,255,0.35);
    }

    .footer-links a {
      color: rgba(255,255,255,0.85);
      font-size: 0.85rem;
      letter-spacing: 0.05em;
      transition: color 0.3s;
    }

    .footer-links a:hover {
      color: #FFFFFF;
    }

    /* モバイル微調整 */
    @media (max-width: 600px) {
      .hero-title {
        font-size: 2.3rem;
      }
      .zukan-card {
        padding: 40px 25px;
      }
      .card-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      /* 狭い画面では判子スタンプがバッジ文言に重なるため、通常フローに積んで回避 */
      .rakkan {
        position: static;
        margin: 0 auto 14px;
      }
      .fee-box-inner {
        flex-direction: column;
      }
      .fee-item + .fee-item {
        border-left: none;
        border-top: 1px solid rgba(0,0,0,0.1);
        padding-left: 0;
        padding-top: 20px;
      }
    }