/* <system section="theme" selected="smooth"> */
@charset "UTF-8";/*!
Theme: Smooth
Author: Hatena Blog Team
Responsive: yes
*//*!
 * Bootstrap Reboot v4.2.1 (https://getbootstrap.com/)
 * Copyright 2011-2018 The Bootstrap Authors
 * Copyright 2011-2018 Twitter, Inc.
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
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/* </system> */

/* <system section="background" selected="default"> */
/* default */
/* </system> */
<style>
  .blog-deco-box {
    font-family:"Hiragino Sans","Yu Gothic","Helvetica",Arial,sans-serif;
    line-height:1.85;
  }

  /* 1. シンプル枠線ボックス */
  .box-simple {
    border:2px solid #ccc;
    padding:1em 1.2em;
    margin:1.5em 0;
    border-radius:6px;
    background:#fafafa;
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  /* 2. 影付きカード風ボックス */
  .box-shadow {
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    padding:1.2em 1.4em;
    margin:1.8em 0;
    background:#fff;
    box-shadow:0 2px 6px rgba(0,0,0,.15);
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  /* 3. 左線強調ボックス */
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    border-left:6px solid #4caf50;
    padding:0.8em 1em;
    margin:1.5em 0;
    background:#f9fff9;
  }

  /* 4. 点線枠メモ風ボックス */
  .box-dotted {
    border:2px dashed #888;
    padding:1em 1.2em;
    margin:1.5em 0;
    border-radius:6px;
    background:#fffef7;
  }

  /* 5. リボン付き見出しボックス */
  .box-ribbon {
    position:relative;
    padding:1.4em 1.2em 1.1em;
    margin:2em 0 1.5em;
    border-radius:8px;
    background:#f5f9ff;
    border:1px solid #bbdefb;
  }
  .box-ribbon-title {
    position:absolute;
    top:-0.9em;
    left:0.8em;
    padding:0.2em 0.8em;
    background:#2196f3;
    color:#fff;
    font-weight:bold;
    border-radius:4px;
    font-size:0.9em;
  }

  /* 6. 付箋メモ風ボックス */
  .box-sticky {
    position:relative;
    padding:1.2em 1.4em;
    margin:1.8em 0;
    background:#fff9c4;
    border-radius:4px;
    box-shadow:0 4px 0 rgba(0,0,0,.15);
  }
  .box-sticky:before {
    content:"";
    position:absolute;
    top:-10px;
    left:20px;
    width:60px;
    height:20px;
    background:rgba(0,0,0,0.12);
    transform:rotate(-4deg);
    z-index:-1;
    filter:blur(2px);
  }

  /* 7. 注意・警告ボックス */
  .box-warning {
    border-radius:8px;
    border:2px solid #f44336;
    background:#ffebee;
    padding:1em 1.2em;
    margin:1.5em 0;
  }
  .box-warning-title {
    font-weight:bold;
    color:#c62828;
    margin-bottom:0.3em;
  }

  /* 8. 引用・コラム枠ボックス */
  .box-quote {
    border-left:4px solid #9e9e9e;
    margin:1.5em 0;
    padding:0.5em 1.2em;
    background:#fafafa;
    font-style:italic;
    color:#555;
  }

  /* 9. 吹き出し（左） */
  .balloon-left {
    position:relative;
    display:inline-block;
    max-width:95%;
    margin:1em 0;
    padding:0.8em 1em;
    border-radius:12px;
    background:#e3f2fd;
  }
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    content:"";
    position:absolute;
    top:12px;
    left:-10px;
    border-width:8px 10px 8px 0;
    border-style:solid;
    border-color:transparent #e3f2fd transparent transparent;
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  /* 10. 吹き出し（右） */
  .balloon-right {
    position:relative;
    display:inline-block;
    max-width:95%;
    margin:1em 0 1em auto;
    padding:0.8em 1em;
    border-radius:12px;
    background:#e8f5e9;
  }
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    content:"";
    position:absolute;
    top:12px;
    right:-10px;
    border-width:8px 0 8px 10px;
    border-style:solid;
    border-color:transparent transparent transparent #e8f5e9;
  }

  /* 11. セクション区切り（飾り線） */
  .section-line {
    width:100%;
    border:0;
    border-top:2px dashed #c5c5c5;
    margin:2em 0;
  }

  /* 12. 強調見出しブロック */
  .headline-box {
    padding:0.7em 1em;
    background:#e8f0fe;
    border-left:6px solid #4285f4;
    font-weight:bold;
    margin:2em 0 1em;
    border-radius:4px;
  }

  /* 13. ノート風（上部タイトル線） */
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    border-top:4px solid #4caf50;
    padding:1em 1.2em;
    margin:1.8em 0;
    background:#f7fff7;
    border-radius:4px;
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  /* 14. チェックリストボックス */
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    border:2px solid #4caf50;
    padding:1em 1.4em;
    margin:1.8em 0;
    border-radius:8px;
    background:#f9fff9;
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  .checklist-box ul {
    margin:0;
    padding-left:1.2em;
  }
  .checklist-box li {
    margin-bottom:0.4em;
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  /* 15. 黄色つまみ付きボックス */
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    background:#fffde7;
    border-left:5px solid #fbc02d;
    padding:1em;
    margin:1.8em 0;
  }
  .yellow-tab:before {
    content:"";
    position:absolute;
    top:-8px;
    left:10px;
    width:20px;
    height:20px;
    background:#fbc02d;
    clip-path:polygon(0 0, 100% 0, 0 100%);
  }

  /* 16. セル風ボックス（ノートアプリ風） */
  .cell-box {
    border:1px solid #ddd;
    padding:1em 1.2em;
    margin:1.5em 0;
    background:#ffffff;
    border-radius:6px;
  }

  /* 17. グラデーション背景ボックス */
  .entry-content .grad-box {
    padding:1.2em 1.4em;
    margin:1.8em 0;
    background:linear-gradient(135deg, #e3f2fd, #fce4ec);
    border-radius:10px;
    color:#333;
  }

  /* 18. 和紙風ボックス */
  .washi {
    padding:1.4em;
    margin:1.8em 0;
    background:#faf7f0;
    border:1px solid #e0d7c6;
    border-radius:8px;
    box-shadow:inset 0 0 4px rgba(0,0,0,0.05);
  }

  /* 19. 画像キャプション用囲み */
  .caption-box {
    border-top:2px solid #bdbdbd;
    border-bottom:2px solid #bdbdbd;
    padding:0.8em;
    margin:1.8em 0;
    font-size:0.95em;
    text-align:center;
    color:#555;
    background:#fafafa;
  }

  /* 20. 2カラムのカード風 */
  .two-card {
    display:flex;
    gap:1em;
    margin:1.8em 0;
  }
  .two-card-item {
    flex:1;
    padding:1em;
    background:#ffffff;
    border:1px solid #ddd;
    border-radius:6px;
    box-shadow:0 2px 4px rgba(0,0,0,.1);
  }
  @media(max-width:600px){
    .two-card {flex-direction:column;}
  }

  /* 21. 目次ボックス */
  .toc-box {
    border:2px solid #90caf9;
    background:#e3f2fd;
    padding:1em 1.2em;
    margin:1.5em 0 2em;
    border-radius:8px;
  }
  .toc-title {
    font-weight:bold;
    margin-bottom:0.4em;
  }
  .toc-box ul {
    margin:0;
    padding-left:1.2em;
  }
  .toc-box li {
    margin-bottom:0.25em;
  }

  /* 22. TIP! 情報ボックス */
  .entry-content .tip-box {
    border-left:6px solid #29b6f6;
    background:#e1f5fe;
    padding:0.9em 1em;
    margin:1.5em 0;
  }
  .entry-content .tip-title {
    font-weight:bold;
    margin-bottom:0.2em;
  }

  /* 23. モノクロ枠（印刷向け） */
  .mono-box {
    border:1px solid #444;
    padding:1em 1.2em;
    margin:1.5em 0;
    background:#f7f7f7;
    border-radius:4px;
    color:#222;
  }

  /* 24. ラベル風ボックス（タグっぽい見出し） */
  .label-box {
    display:inline-block;
    padding:0.25em 0.8em;
    border-radius:999px;
    border:1px solid #9e9e9e;
    background:#f5f5f5;
    font-size:0.9em;
    margin:0.3em 0.2em;
  }

  /* 25. タイムライン風ボックス */
  .timeline-box {
    border-left:3px solid #9e9e9e;
    padding-left:1em;
    margin:1.8em 0;
  }
  .timeline-item {
    margin-bottom:0.8em;
    position:relative;
  }
  .timeline-item:before {
    content:"";
    position:absolute;
    left:-1.2em;
    top:0.35em;
    width:8px;
    height:8px;
    border-radius:50%;
    background:#9e9e9e;
  }
  .timeline-time {
    font-weight:bold;
    margin-right:0.4em;
  }

  /* 26. 番号付き強調ボックス */
  .number-box {
    display:flex;
    align-items:flex-start;
    margin:1.5em 0;
  }
  .number-box-num {
    flex:0 0 auto;
    margin-right:0.6em;
    padding:0.1em 0.6em;
    border-radius:999px;
    background:#3949ab;
    color:#fff;
    font-weight:bold;
  }
  .number-box-body {
    flex:1;
    background:#e8eaf6;
    padding:0.8em 1em;
    border-radius:6px;
  }

  /* 27. Q&Aボックス（質問） */
  .qa-q {
    border-left:4px solid #ffb300;
    background:#fff8e1;
    padding:0.8em 1em;
    margin:1.2em 0 0.4em;
  }

  /* 28. Q&Aボックス（回答） */
  .qa-a {
    border-left:4px solid #43a047;
    background:#e8f5e9;
    padding:0.8em 1em;
    margin:0 0 1.2em;
  }

  /* 29. コラム枠（囲み記事） */
  .column-box {
    border:1px solid #b0bec5;
    background:#eceff1;
    padding:1.2em 1.4em;
    margin:1.8em 0;
    border-radius:8px;
  }
  .column-title {
    font-weight:bold;
    margin-bottom:0.5em;
  }

  /* 30. フッターノートボックス */
  .footer-note {
    border-top:1px solid #cfd8dc;
    margin-top:3em;
    padding-top:1em;
    font-size:0.9em;
    color:#607d8b;
  }

  /* ページ先頭リンク */
  .back-to-top {
    text-align:right;
    font-size:0.9em;
    margin-top:0.5em;
  }
  .back-to-top a {
    text-decoration:none;
  }
</style>