/* <system section="theme" selected="reach"> */
@charset "UTF-8";/*!
  Theme: Reach
  Author: Hatena Blog Team
  Responsive: yes
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/* </system> */

/* <system section="background" selected="undefined"> */

/* </system> */
/* Ventiaデザイン最適化カラースキーム */
:root {
  --main-color: #2c3e50;
  --accent-color: #3498db;
  --emphasis-color: #e74c3c;
  --bg-color: #f9f9f9;
  --text-color: #333;
  --border-color: #eee;
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  :root {
    --main-color: #1a2634;
    --accent-color: #2980b9;
    --emphasis-color: #c0392b;
    --bg-color: #1a1a1a;
    --text-color: #eee;
    --border-color: #333;
  }
}

/* タイポグラフィ設定 - 2025年最適化版 */
.entry-title {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.entry-content {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', sans-serif;
  line-height: 1.9;
  font-size: 16px;
  letter-spacing: 0.5px;
  word-spacing: 1px;
}

/* 見出しスタイル - Font Awesome 6対応 */
.entry-content h2 {
  border-left: 5px solid var(--accent-color);
  padding-left: 12px;
  font-size: 1.4rem;
  margin: 2.5em 0 1.2em;
}

.entry-content h3 {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 6px;
  font-size: 1.2rem;
  margin: 2em 0 1em;
}

.entry-content h4 {
  font-size: 1.1rem;
  margin: 1.8em 0 0.8em;
  color: var(--main-color);
}

/* スマホ表示調整 */
@media screen and (max-width: 768px) {
  .entry-content {
    font-size: 15px;
    line-height: 1.8;
  }
  
  .entry-content h2 {
    font-size: 1.3rem;
  }
  
  .entry-content h3 {
    font-size: 1.1rem;
  }
}

/* テーブルの横スクロール対応 */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 1.5em;
}

/* 吹き出しスタイルの改善 */
.balloon-left {
  display: flex;
  align-items: flex-start;
  margin: 2em 0;
}

.balloon-image {
  margin: 0;
  min-width: 60px;
  width: 60px;
}

.balloon-text {
  position: relative;
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 1em;
  margin-left: 15px;
}

.balloon-text:before,
.balloon-text:after {
  content: "";
  position: absolute;
  left: -10px;
  top: 20px;
  border: 5px solid transparent;
}

.balloon-text:before {
  border-right: 10px solid var(--border-color);
  margin-left: -2px;
}

.balloon-text:after {
  border-right: 10px solid var(--bg-color);
}

/* ボックス共通スタイル */
.information-box,
.success-box,
.warning-box,
.solution-box {
  margin: 2em 0;
  padding: 1.5em;
  border-radius: 5px;
  position: relative;
}

/* 情報ボックス */
.information-box {
  background-color: rgba(52, 152, 219, 0.1);
  border-left: 5px solid var(--accent-color);
}

/* 成功ボックス */
.success-box {
  background-color: rgba(46, 204, 113, 0.1);
  border-left: 5px solid #2ecc71;
}

/* 警告ボックス */
.warning-box {
  background-color: rgba(231, 76, 60, 0.1);
  border-left: 5px solid var(--emphasis-color);
}

/* 対策ボックス */
.solution-box {
  background-color: rgba(241, 196, 15, 0.1);
  border-left: 5px solid #f1c40f;
}

/* モバイル最適化 */
@media (max-width: 480px) {
  .entry-content {
    padding: 0 10px;
  }
  
  a, button {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
  }
  
  .table-responsive table {
    font-size: 14px;
  }
}

/* 引用番号リンクの44pxタップ領域問題の修正（2026-08-07）
   上の a, button は全<a>に inline-flex + 44px を当てるため、
   引用番号 <sup><a href="#refN"> と href 無しのアンカー先 <a id="refN">
   まで44px角の箱になり行送りが壊れる。
   WCAG 2.5.8 はインラインリンクを対象外と定めるため除外してよい。 */
@media (max-width: 480px) {
  .entry-content sup a,
  .entry-content a:not([href]) {
    display: inline;
    min-width: 0;
    min-height: 0;
    line-height: inherit;
    vertical-align: baseline;
  }
  .entry-content sup a { padding: 0 1px; }
}

/* 本文中インラインリンクの44pxタップ領域の解除（2026-08-07）
   上の a, button の inline-flex は行内で分割できない原子的インラインボックスに
   なるため、文中リンクが1行に押し込まれて行送りが壊れる。
   WCAG 2.5.8 はインラインリンクを対象外と定めるので解除してよい。
   タップ領域は上下 padding 6px で確保する（inline 要素の上下 padding は
   行の高さを変えずにヒット領域だけ広げる。17px → 29px）。
   見出しアンカーと画像リンクは箱のままが正しいので除外。
   :has() 非対応ブラウザではブロック全体が無効になり従来表示へ戻るだけ。
   ロールバックはこのブロックの削除のみ。詳細と実測値:
   medical-content/blog/hatena-design-css/patch_inline_link_tap_target.css */
@media (max-width: 480px) {
  .entry-content a[href]:not(.heading-anchor-link):not(:has(img)) {
    display: inline;
    min-width: 0;
    min-height: 0;
    line-height: inherit;
    vertical-align: baseline;
    padding: 6px 0;
  }

  /* 引用番号は上のルールと同詳細度・後置で padding を戻す */
  .entry-content sup a[href]:not(.heading-anchor-link) {
    padding: 0 1px;
  }
}

/* === ichisouzo-home-20261013: reversible homepage layer === */
#blog-title{height:auto!important;max-width:960px;width:calc(100% - 32px);margin:24px auto 16px;border-radius:12px;overflow:hidden;box-sizing:border-box;}
#blog-title-inner{height:168px!important;min-height:0!important;background-size:cover!important;background-position:center 47%!important;display:flex;align-items:center;}
#blog-title-inner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,36,51,.8),rgba(7,36,51,.18));pointer-events:none;}
#blog-title-content{position:relative!important;top:auto!important;left:auto!important;width:100%;padding:24px!important;box-sizing:border-box;}
#title{margin:0 0 9px!important;line-height:1.45!important;font-size:27px!important;}
#title a{display:block;min-height:0;color:#fff!important;text-shadow:0 1px 3px #123;}
#blog-description{margin:0!important;color:#fff!important;font-size:14px!important;line-height:1.6!important;}
#top-editarea{width:calc(100% - 32px)!important;max-width:960px;box-sizing:border-box;padding:0!important;margin:0 auto 24px!important;border:0!important;background:transparent!important;box-shadow:none!important;}
.ich-nav-wrap{background:#fff;border:1px solid #dce6ec;border-radius:10px;overflow:hidden;}
.ich-primary-nav{display:flex;align-items:center;gap:4px 16px;flex-wrap:wrap;padding:12px 16px;}
.ich-primary-nav>a{font-size:15px;font-weight:700;color:#174c64;text-decoration:none;display:inline-flex;align-items:center;min-height:40px;}
.ich-primary-nav>a:hover,.ich-external-nav a:hover,.ich-topic-nav a:hover{text-decoration:underline;}
.ich-primary-nav .ich-nav-home{color:#23384d;}
.ich-search{display:flex;flex:1 1 255px;gap:6px;max-width:360px;margin-left:auto;}
.ich-search input{box-sizing:border-box;width:0;min-width:0;flex:1;border:1px solid #bbcdd8;border-radius:6px;padding:9px 10px;font:inherit;font-size:14px;background:#fff;color:#23384d;}
.ich-search button{border:0;border-radius:6px;padding:9px 14px;background:#1b607b;color:#fff;font-size:14px;cursor:pointer;min-width:54px;min-height:40px;}
.ich-external-nav{display:flex;flex-wrap:wrap;gap:4px 20px;padding:8px 16px;border-top:1px solid #edf1f4;}
.ich-external-nav a{color:#516879;font-size:13px;text-decoration:none;min-height:28px;display:inline-flex;align-items:center;}
.ich-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.ich-home-only{display:none;}
.page-index .ich-home-only{display:block;}
.ich-home-intro{padding:21px 0 0;color:#23384d;}
.ich-intro{margin:0 0 8px;font-size:17px;line-height:1.9;font-weight:600;}
.ich-author{margin:0 0 16px;font-size:13px;line-height:1.8;color:#526777;}
.ich-author a{color:#1b607b;display:inline;min-height:0;min-width:0;}
.ich-topic-nav{display:flex;flex-wrap:wrap;gap:8px;}
.ich-topic-nav a{background:#fff;border:1px solid #cbdbe4;border-radius:20px;padding:6px 13px;font-size:13px;color:#24536a;text-decoration:none;min-height:30px;box-sizing:border-box;display:inline-flex;align-items:center;}
.ich-all-categories{font-size:13px;margin-top:12px;line-height:1.8;}
.ich-all-categories summary{cursor:pointer;color:#24536a;padding:7px 0;}
#ich-category-list{background:#fff;border:1px solid #dce6ec;border-radius:8px;padding:12px;}
#ich-category-list ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px 12px;}
#ich-category-list li{margin:0;padding:0;border:0;overflow-wrap:anywhere;}
#ich-category-list a{display:block;min-height:30px;min-width:0;font-size:13px;line-height:1.6;color:#24536a;text-decoration:none;}
.ich-featured{margin-top:20px;color:#23384d;}
.ich-featured h2,.ich-latest-title{font-size:19px;line-height:1.5;margin:0 0 12px;font-weight:700;}
.ich-featured-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.ich-feature{display:flex!important;flex-direction:column;align-items:flex-start!important;gap:8px;min-width:0;min-height:0;box-sizing:border-box;padding:16px;background:#fff;border:1px solid #ccdde6;border-top:3px solid #2e8194;border-radius:8px;text-decoration:none!important;color:#253f50;line-height:1.6;}
.ich-feature:hover{border-color:#2e8194;background:#f5fbfd;}
.ich-eyebrow{font-size:11px;color:#2d728a;font-weight:700;letter-spacing:.04em;}
.ich-feature strong{font-size:16px;line-height:1.6;}
.ich-feature>span:last-child{font-size:12px;color:#526777;}
.ich-latest-title{margin:26px 0 0!important;color:#23384d;}
body.page-index{background:#f3f6f8;}
.page-index #content{max-width:960px;width:calc(100% - 32px);margin:0 auto;}
.page-index #wrapper,.page-index #main,.page-index #main-inner{width:100%;max-width:100%;float:none;box-sizing:border-box;margin:0;padding:0;border:0;background:transparent;box-shadow:none;}
.page-index #box2{display:none;}
.page-index .archive-entries{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.page-index .archive-entry{box-sizing:border-box;min-width:0;display:flex;flex-direction:column;margin:0;padding:0;background:#fff;border:1px solid #dce6ec;border-radius:10px;overflow:hidden;}
.page-index .archive-entry-header{padding:16px 18px 6px;}
.page-index .archive-date{font-size:12px;line-height:1.6;margin:0 0 8px;}
.page-index .archive-entry .entry-title{font-size:21px;line-height:1.55;margin:0;overflow-wrap:anywhere;}
.page-index .archive-entry .entry-title a{color:#203e50;text-decoration:none;display:block;min-width:0;min-height:0;}
.page-index .archive-entry .entry-title a:hover{text-decoration:underline;}
.page-index .archive-entry>.categories{padding:0 18px;margin:0;display:flex;flex-wrap:wrap;gap:5px;}
.page-index .archive-entry>.categories a{font-size:11px;line-height:1.5;padding:3px 7px;min-height:0;min-width:0;margin:0;display:inline-block;border-radius:3px;}
.page-index .entry-thumb-link{order:-1;display:block;min-height:0;min-width:0;}
.page-index .entry-thumb{float:none;width:100%;height:220px;margin:0;background-size:cover;background-position:center;}
.page-index .archive-entry-body{padding:10px 18px 16px;box-sizing:border-box;}
.page-index .entry-description{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;font-size:14px;line-height:1.85;color:#4d6270;margin:0 0 10px;}
.page-index .archive-entry .social-buttons{font-size:11px;}
.page-index .pager{margin:24px 0;}
@media(max-width:700px){
#blog-title{margin-top:16px;width:calc(100% - 24px);}
#blog-title-inner{height:150px!important;}
#blog-title-content{padding:17px!important;}
#title{font-size:21px!important;}
#blog-description{font-size:12px!important;}
#top-editarea,.page-index #content{width:calc(100% - 24px)!important;}
.ich-primary-nav{gap:2px 15px;padding:10px 12px;}
.ich-primary-nav>a{font-size:14px;}
.ich-search{flex-basis:100%;max-width:none;margin:5px 0 0;}
.ich-search input{font-size:16px;}
.ich-external-nav{gap:1px 15px;padding:7px 12px;}
.ich-external-nav a{font-size:12px;}
.ich-intro{font-size:15px;line-height:1.85;}
.ich-author{font-size:12px;}
.ich-topic-nav{gap:6px;}
.ich-topic-nav a{font-size:12px;padding:5px 10px;}
#ich-category-list ul{grid-template-columns:repeat(2,minmax(0,1fr));}
.ich-featured-grid{grid-template-columns:1fr;gap:9px;}
.ich-feature{padding:12px 14px;gap:4px;}
.ich-feature strong{font-size:15px;}
.ich-feature br{display:none;}
.page-index .archive-entries{grid-template-columns:1fr;gap:18px;}
.page-index .entry-thumb{height:200px;}
.page-index .archive-entry .entry-title{font-size:19px;line-height:1.6;}
.page-index .archive-entry-header{padding:14px 15px 7px;}
.page-index .archive-entry>.categories{padding:0 15px;}
.page-index .archive-entry-body{padding:10px 15px 15px;}
}
/* === end ichisouzo-home-20261013 === */

/* Reach theme specificity corrections verified at narrow widths */
#title{padding:0!important;}
#blog-description{padding:0!important;}
.page-index .archive-entry .entry-title{font-size:21px!important;}
.page-index .archive-entry .entry-title a{color:#203e50!important;}
@media(max-width:700px){.page-index .archive-entry .entry-title{font-size:19px!important;}}

/* === ichisouzo-discovery-20261013: reader pathways === */
.ich-external-nav{align-items:center;gap:7px 18px;padding:10px 16px;background:#f3f8fb;}
a.ich-lab-home-cta,.ich-external-nav a.ich-lab-home-cta{display:inline-flex;align-items:center;justify-content:center;gap:12px;box-sizing:border-box;min-height:44px;min-width:0;padding:10px 16px;border-radius:7px;background:#185c72;color:#fff!important;font-size:14px;font-weight:700;line-height:1.5;text-decoration:none!important;}
a.ich-lab-home-cta:hover,.ich-external-nav a.ich-lab-home-cta:hover{background:#10485c;}
.ich-subscribe-inline{display:flex;align-items:center;flex-wrap:wrap;gap:8px 14px;margin:14px 0;color:#526777;font-size:13px;line-height:1.7;}
.ich-subscribe-inline iframe{width:150px!important;height:28px!important;max-width:100%;border:0;display:block;}
.ich-popular{margin-top:22px;padding:18px;background:#fff;border:1px solid #d6e3eb;border-radius:10px;color:#23384d;scroll-margin-top:20px;}
.ich-popular-heading{display:flex;flex-wrap:wrap;align-items:baseline;gap:5px 16px;margin-bottom:10px;}
.ich-popular-heading h2{margin:0;font-size:19px;line-height:1.6;}
.ich-popular-heading>span{font-size:12px;color:#5a7080;}
.ich-popular ol{padding-left:27px;margin:0;}
.ich-popular li{padding:6px 0 6px 3px;line-height:1.65;border-bottom:1px solid #edf2f5;}
.ich-popular li::marker{color:#2b778f;font-size:13px;font-weight:bold;}
.ich-popular li a{color:#254b61;text-decoration:none;font-size:14px;line-height:1.7;display:block;min-width:0;min-height:0;overflow-wrap:anywhere;}
.ich-popular li a:hover{text-decoration:underline;}
.ich-popular-more summary{cursor:pointer;font-size:13px;color:#24536a;padding:11px 0;}
.ich-popular-note{margin:12px 0 7px;font-size:11px;color:#667d8b;line-height:1.6;}
.ich-hatena-discovery{display:flex;align-items:center;flex-wrap:wrap;gap:4px 16px;font-size:12px;color:#667d8b;}
.ich-hatena-discovery a{display:inline;min-height:0;min-width:0;color:#476c80;font-size:12px;line-height:1.7;text-decoration:underline;}
.ich-reader-cta{margin:28px 0;padding:22px;border:1px solid #c6d8e5;border-radius:10px;background:#f3f8fc;color:#23384d;line-height:1.8;}
.ich-reader-cta p{margin:0 0 12px;font-size:15px;}
.ich-reader-cta .ich-reader-title{font-size:18px;font-weight:bold;}
.ich-reader-cta .ich-reader-links{margin:14px 0 0;font-size:13px;}
.ich-reader-links a{display:inline;min-height:0;min-width:0;color:#24536a;font-size:13px;}
.ich-reader-cta .ich-subscribe-inline{margin-top:18px;}
@media(max-width:700px){
.ich-primary-nav{column-gap:13px;}
.ich-external-nav{padding:10px 12px;gap:7px 14px;}
.ich-external-nav a.ich-lab-home-cta{flex-basis:100%;justify-content:space-between;font-size:14px;}
.ich-popular{padding:14px;}
.ich-popular-heading h2{font-size:18px;}
.ich-popular-heading>span{font-size:11px;}
.ich-reader-cta{padding:18px;}
}
/* === end ichisouzo-discovery-20261013 === */

/* === ichisouzo-home-order-20261015: featured links below the current article list === */
.page-index #bottom-editarea{width:calc(100% - 32px);max-width:960px;box-sizing:border-box;padding:0;margin:28px auto 32px;border:0;background:transparent;box-shadow:none;}
.ich-home-bottom .ich-featured{margin-top:0;}
.ich-home-bottom .ich-hatena-discovery{margin-top:20px;padding:16px 0 0;border-top:1px solid #d7e2e9;}
body:not(.page-index) #bottom-editarea:has(>.ich-home-bottom){display:none;}
@media(max-width:700px){.page-index #bottom-editarea{width:calc(100% - 24px);margin-top:24px;}}
/* === end ichisouzo-home-order-20261015 === */

/* === ichisouzo-group-support-20261015: official banners and save button === */
.page-entry .entry-footer{display:flex;flex-direction:column;}
.page-entry .entry-footer > .customized-footer{order:-1;width:100%;box-sizing:border-box;display:flex;flex-direction:column;}
.page-entry .customized-footer > .entry-footer-html{order:-1;width:100%;box-sizing:border-box;}
.ich-group-support,.ich-save-article{box-sizing:border-box;margin:24px 0;padding:20px;border:1px solid #d8e2e8;border-radius:10px;background:#f5f9fb;color:#274552;}
.ich-group-support h2,.ich-save-article h2{margin:0 0 10px;padding:0;border:0;background:none;font-size:19px;line-height:1.5;}
.ich-group-support p,.ich-save-article p{margin:0 0 14px;font-size:15px;line-height:1.8;}
.ich-group-banner-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.ich-group-banner-grid .embed-group{margin:0;width:auto;max-width:none;border:1px solid #b9cdd6;border-radius:8px;background:#fff;overflow:hidden;}
.ich-group-banner-grid .embed-group-link{display:flex;align-items:center;gap:12px;box-sizing:border-box;min-height:84px;width:100%;max-width:none;box-shadow:none;border-radius:0;padding:12px;text-decoration:none;color:#184f63;}
.ich-group-banner-grid .embed-group-link:hover,.ich-group-banner-grid .embed-group-link:focus-visible{background:#eaf5fa;outline:2px solid #26718a;outline-offset:-2px;}
.ich-group-banner-grid .embed-group-icon{flex:0 0 40px;width:40px;margin:0;}
.ich-group-banner-grid .embed-group-icon img{display:block;width:40px;height:40px;margin:0;}
.ich-group-banner-grid .embed-group-content{min-width:0;margin:0;}
.ich-group-banner-grid .embed-group-title-label{display:block;font-size:11px;color:#687f89;line-height:1.5;}
.ich-group-banner-grid .embed-group-title{font-size:15px;font-weight:700;line-height:1.6;white-space:normal;overflow-wrap:anywhere;}
.ich-group-support .ich-group-note{margin:14px 0 0;font-size:12px;color:#62757f;}
.ich-group-note a{margin-left:6px;text-decoration:underline;}
.ich-save-article{background:#fff;border-left:4px solid #00a4de;}
.ich-bookmark-control{min-height:44px;}
.page-entry .entry-footer > .social-buttons .social-button-item:has(iframe.hatena-bookmark-button-frame){display:none;}
@media(max-width:700px){.ich-group-support,.ich-save-article{padding:16px;}.ich-group-banner-grid{grid-template-columns:1fr;}.ich-group-banner-grid .embed-group-link{min-height:76px;}}
/* === end ichisouzo-group-support-20261015 === */

/* Hide only the old ordinary participation module; official ranking banners remain. */
.page-entry #entry-footer-primary-modules > .hatena-module-circles{display:none;}