/* しおざき内科 共通スタイル / コラムテンプレート用
   ＊本番化時は /css/column-style.css などのサーバ配置パスに置き換える */
*{margin:0;padding:0;box-sizing:border-box}
:root{--green:#7a9b6e;--green-dark:#5a7a5e;--green-darker:#3d6045;--coral:#e08a6f;--coral-dark:#c46b50;--cream:#faf6ef;--cream-dark:#f0e8d8;--beige:#e7d9c0;--pale-green:#cfe1bf;--brown:#3d2f24;--brown-light:#7a6a5a;--text:#3d2f24;--gray:#a08c70}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans JP',sans-serif;color:var(--text);line-height:1.85;background:#fff;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:var(--green-dark);transition:color .2s}
a:hover{color:var(--coral)}
img{max-width:100%;display:block}

/* === HEADER === */
.hdr{position:sticky;top:0;z-index:1000;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.hdr-top{display:flex;align-items:stretch;height:88px}
.hdr-logo{display:flex;align-items:center;padding:0 28px;flex-shrink:0;border-right:1px solid var(--cream-dark)}
.hdr-logo .logo-mark{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:700;color:var(--green);letter-spacing:.02em}
.hdr-logo .logo-en{font-size:10px;letter-spacing:.18em;color:var(--gray);margin-top:4px}
.hdr-spacer{flex:1}
.hdr-utils{display:flex;align-items:stretch}
.hdr-badge{display:flex;align-items:center;justify-content:center;padding:0 22px;font-family:'Noto Serif JP',serif;font-size:13px;font-weight:500;line-height:1.4;text-align:center;color:#fff}
.hdr-badge.badge1{background:var(--coral)}
.hdr-badge.badge2{background:var(--green)}
.hdr-badge small{display:block;font-size:10px;font-weight:400;opacity:.85;margin-bottom:3px;letter-spacing:.05em}
.hdr-icons{display:flex}
.hdr-icon-btn{width:64px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--green);border-left:1px solid var(--cream-dark);transition:all .2s;background:#fff}
.hdr-icon-btn:hover{background:var(--cream);color:var(--green-darker)}
.hdr-icon-btn svg{width:22px;height:22px;margin-bottom:3px}
.hdr-icon-btn .lbl{font-size:9px;letter-spacing:.08em}
.hdr-nav{display:flex;border-top:1px solid var(--cream-dark);position:relative}
.hdr-nav-item{flex:1;text-align:center;border-right:1px solid var(--cream-dark);background:#fff}
.hdr-nav-item:last-child{border-right:none}
.nav-link{display:block;padding:18px 12px;font-family:'Noto Serif JP',serif;font-weight:600;font-size:15px;color:var(--text);text-decoration:none;cursor:pointer;transition:all .2s}
.hdr-nav-item:hover .nav-link,.hdr-nav-item.is-open .nav-link{background:var(--cream);color:var(--green)}
.caret{font-size:9px;opacity:.5;margin-left:4px;vertical-align:1px}
.submenu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--cream);padding:36px 60px;border-bottom:1px solid var(--cream-dark);box-shadow:0 10px 30px rgba(0,0,0,.08);z-index:10;grid-template-columns:repeat(3,1fr);gap:16px 40px;text-align:left}
.hdr-nav-item:hover .submenu,.hdr-nav-item.is-open .submenu{display:grid}
.submenu a{display:flex;align-items:center;gap:10px;font-family:'Noto Sans JP',sans-serif;font-size:14px;font-weight:500;padding:10px 12px;transition:all .2s;color:var(--text);border-radius:6px;text-decoration:none}
.submenu a:hover{background:#fff;color:var(--green);transform:translateX(4px)}
.submenu a::before{content:"›";font-size:16px;color:var(--green);opacity:.7}

/* === ARTICLE HERO === */
.article-hero{padding:50px 48px;background:var(--cream);position:relative;overflow:hidden}
.article-hero::before{content:"";position:absolute;top:-80px;right:-60px;width:260px;height:260px;background:var(--beige);border-radius:50%;opacity:.45}
.article-hero-inner{position:relative;z-index:1;max-width:900px;margin:0 auto}
.breadcrumb{font-size:12px;color:var(--brown-light);margin-bottom:18px;letter-spacing:.04em}
.breadcrumb a{color:var(--green-dark)}
.breadcrumb a:hover{color:var(--coral)}
.breadcrumb .sep{margin:0 8px;color:var(--gray)}
.article-category{display:inline-block;padding:5px 14px;background:var(--green);color:#fff;border-radius:14px;font-family:'Noto Serif JP',serif;font-size:11px;font-weight:600;letter-spacing:.08em;margin-bottom:18px}
.article-category.vaccine{background:var(--green)}
.article-category.allergy{background:var(--coral)}
.article-category.infection{background:#8a6da0}
.article-category.treatment{background:#a08840}
.article-title{font-family:'Noto Serif JP',serif;font-size:32px;font-weight:700;line-height:1.55;color:var(--brown);margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--brown-light);margin-bottom:24px}
.article-meta .item{display:flex;align-items:center;gap:6px}
.article-meta svg{width:14px;height:14px;color:var(--green-dark)}
.article-lead{font-size:15px;color:var(--brown);line-height:1.95;padding:22px 26px;background:#fff;border-left:4px solid var(--green);border-radius:0 12px 12px 0;margin-bottom:24px}
.article-lead strong{color:var(--green-darker);font-weight:600}
.article-hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;background:var(--coral);color:#fff;border-radius:30px;font-family:'Noto Serif JP',serif;font-size:13px;font-weight:500;box-shadow:0 4px 12px rgba(224,138,111,.3)}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;background:#fff;border:1.5px solid var(--green-dark);color:var(--green-dark);border-radius:30px;font-family:'Noto Serif JP',serif;font-size:13px;font-weight:500}
.btn-outline:hover{background:var(--green-dark);color:#fff}
.btn-line{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;background:#06C755;color:#fff;border-radius:30px;font-family:'Noto Serif JP',serif;font-size:13px;font-weight:500}
.btn-line:hover{background:#05a347;color:#fff}

/* === TOC === */
.article-toc{max-width:900px;margin:36px auto 0;padding:0 48px}
.toc-inner{background:#fff;border:1px solid var(--cream-dark);border-radius:16px;padding:26px 30px;box-shadow:0 4px 18px rgba(180,140,90,.06)}
.toc-header{display:flex;align-items:center;gap:10px;padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--cream-dark)}
.toc-icon{width:30px;height:30px;background:var(--green);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:'Noto Serif JP',serif;font-size:13px;font-weight:700;flex-shrink:0}
.toc-title{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;color:var(--brown);margin:0}
.toc-title small{display:block;font-size:11px;color:var(--gray);font-weight:500;letter-spacing:.15em;margin-top:2px}
.toc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;list-style:none}
.toc-grid a{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;background:var(--cream);border:1px solid var(--cream-dark);border-radius:10px;transition:all .2s;color:var(--brown);font-size:13px;line-height:1.5;font-weight:500;min-height:54px}
.toc-grid a:hover{background:#fff;border-color:var(--green);transform:translateY(-2px);box-shadow:0 6px 16px rgba(122,155,110,.15);color:var(--green-darker)}
.toc-grid a .num{font-family:'Noto Serif JP',serif;font-size:16px;font-weight:700;color:var(--green);flex-shrink:0;min-width:24px;line-height:1.3}
.toc-grid a:hover .num{color:var(--coral)}
.toc-grid a .label{flex:1;padding-top:1px}
.toc-grid a.faq-link{background:linear-gradient(135deg,var(--cream) 0%,var(--cream-dark) 100%)}
.toc-grid a.faq-link .num{color:var(--coral)}

/* === ARTICLE BODY === */
.article-body{max-width:780px;margin:0 auto;padding:60px 48px}
.article-body h2{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:700;color:var(--brown);margin:60px 0 24px;padding-bottom:14px;border-bottom:2px solid var(--green)}
.article-body h2:first-child{margin-top:0}
.article-body h2 .num{display:inline-block;width:36px;height:36px;background:var(--green);color:#fff;border-radius:50%;text-align:center;line-height:36px;font-size:14px;margin-right:14px;vertical-align:2px}
.article-body h3{font-family:'Noto Serif JP',serif;font-size:19px;font-weight:600;color:var(--green-darker);margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--coral);line-height:1.5}
.article-body h4{font-family:'Noto Serif JP',serif;font-size:16px;font-weight:600;color:var(--brown);margin:28px 0 12px}
.article-body p{font-size:15px;line-height:1.95;color:var(--text);margin-bottom:18px}
.article-body p strong{color:var(--green-darker);font-weight:600}
.article-body p em{color:var(--coral-dark);font-style:normal;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 22px 0;padding-left:0;list-style:none}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px;font-size:15px;line-height:1.85;color:var(--text)}
.article-body ul li::before{content:"●";position:absolute;left:0;top:1px;color:var(--green);font-size:9px}
.article-body ol{counter-reset:list-counter}
.article-body ol li{counter-increment:list-counter}
.article-body ol li::before{content:counter(list-counter);position:absolute;left:0;top:1px;width:18px;height:18px;background:var(--green);color:#fff;border-radius:50%;text-align:center;line-height:18px;font-size:10px;font-weight:700;font-family:'Noto Serif JP',serif}

/* === Stat cards === */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0 28px}
.stat-grid.two{grid-template-columns:repeat(2,1fr)}
.stat-card{background:linear-gradient(135deg,var(--cream) 0%,var(--cream-dark) 100%);border-radius:12px;padding:22px 18px;text-align:center;border:1px solid var(--cream-dark)}
.stat-card .number{font-family:'Noto Serif JP',serif;font-size:30px;font-weight:700;color:var(--coral-dark);line-height:1.2;margin-bottom:6px}
.stat-card .label{font-size:12px;color:var(--brown-light);line-height:1.5}
.stat-card.green .number{color:var(--green-darker)}
.stat-card.brown .number{color:var(--brown)}

/* === Tables === */
.article-body table.data-table{width:100%;border-collapse:collapse;margin:20px 0 28px;background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--cream-dark);font-size:13px}
.article-body table.data-table th,.article-body table.data-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--cream-dark);border-right:1px solid var(--cream-dark);line-height:1.65;vertical-align:top}
.article-body table.data-table th:last-child,.article-body table.data-table td:last-child{border-right:none}
.article-body table.data-table thead th{background:var(--green);color:#fff;font-family:'Noto Serif JP',serif;font-weight:600;text-align:center;font-size:13px}
.article-body table.data-table tbody tr:nth-child(even){background:var(--cream)}
.article-body table.data-table tbody tr.group-row td{background:var(--cream-dark);font-family:'Noto Serif JP',serif;font-weight:700;color:var(--green-darker);font-size:13px}
.article-body table.data-table tbody th{background:var(--cream-dark);font-family:'Noto Serif JP',serif;color:var(--brown);font-weight:600;width:30%;font-size:13px}
.article-body table.data-table tbody td strong{color:var(--green-darker);font-weight:600}

/* === Boxes === */
.info-box{padding:20px 24px;background:#eef5ee;border-left:4px solid var(--green);border-radius:0 12px 12px 0;margin:20px 0 26px}
.info-box .box-title{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;color:var(--green-darker);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.info-box .box-title::before{content:"ℹ";font-size:16px;color:var(--green);background:#fff;width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.info-box p{font-size:14px;line-height:1.85;color:var(--brown);margin:0}
.info-box p+p{margin-top:10px}
.info-box ul{margin:8px 0 0;list-style:none}
.info-box ul li{position:relative;padding-left:18px;font-size:14px;line-height:1.85;color:var(--brown);margin-bottom:6px}
.info-box ul li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}

.warning-box{padding:20px 24px;background:#fcefe9;border-left:4px solid var(--coral);border-radius:0 12px 12px 0;margin:20px 0 26px}
.warning-box .box-title{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;color:var(--coral-dark);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.warning-box .box-title::before{content:"⚠";font-size:13px;color:#fff;background:var(--coral);width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.warning-box p{font-size:14px;line-height:1.85;color:var(--brown);margin:0}
.warning-box p+p{margin-top:10px}
.warning-box ul{margin:8px 0 0;list-style:none}
.warning-box ul li{position:relative;padding-left:18px;font-size:14px;line-height:1.85;color:var(--brown);margin-bottom:6px}
.warning-box ul li::before{content:"・";position:absolute;left:0;color:var(--coral);font-weight:700}

.highlight-box{padding:24px 28px;background:linear-gradient(135deg,var(--pale-green) 0%,var(--cream) 100%);border-radius:14px;margin:24px 0 28px;border:1px solid var(--cream-dark)}
.highlight-box p{margin:0;font-size:14px;line-height:1.9;color:var(--brown)}
.highlight-box p strong{color:var(--green-darker);font-weight:700}

/* === Compare / Mech grids === */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0 28px}
.compare-card{padding:24px 22px;border-radius:14px;border:1px solid var(--cream-dark)}
.compare-card.left{background:var(--cream)}
.compare-card.right{background:linear-gradient(135deg,var(--pale-green) 0%,var(--cream) 100%);border:1.5px solid var(--green)}
.compare-card h4{font-family:'Noto Serif JP',serif;font-size:16px;font-weight:700;color:var(--brown);margin:0 0 14px;padding-bottom:10px;border-bottom:2px solid var(--cream-dark)}
.compare-card.right h4{color:var(--green-darker);border-bottom-color:var(--green)}
.compare-card ul{margin:0;padding:0;list-style:none}
.compare-card ul li{position:relative;padding-left:18px;font-size:13px;line-height:1.7;color:var(--brown-light);margin-bottom:8px}
.compare-card ul li::before{content:"・";position:absolute;left:0;color:var(--green-dark);font-weight:700}
.compare-card.right ul li::before{color:var(--coral)}

.mech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:22px 0 28px}
.mech-card{padding:22px 20px;background:#fff;border:1px solid var(--cream-dark);border-radius:14px}
.mech-card h4{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;color:var(--green-darker);margin:0 0 8px;display:flex;align-items:center;gap:8px}
.mech-card h4::before{content:"";width:8px;height:8px;background:var(--coral);border-radius:50%;flex-shrink:0}
.mech-card p{font-size:13px;line-height:1.85;color:var(--brown-light);margin:0}

/* === Source / Image / CTA === */
.source{margin:8px 0 24px;font-size:12px;color:var(--gray);font-style:italic;padding-left:14px;border-left:2px solid var(--cream-dark);line-height:1.7}
.article-image{margin:24px 0 8px}
.article-image img{width:100%;border-radius:12px;border:1px solid var(--cream-dark)}
.article-image .caption{font-size:12px;color:var(--brown-light);text-align:center;margin-top:8px;line-height:1.6}
.article-image .placeholder{aspect-ratio:16/9;background:linear-gradient(135deg,var(--pale-green) 0%,var(--beige) 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:'Noto Serif JP',serif;color:var(--green-dark);font-size:14px}
.inline-cta{margin:30px 0;padding:24px 28px;background:var(--cream);border-radius:14px;text-align:center;border:1px dashed var(--coral)}
.inline-cta p{font-family:'Noto Serif JP',serif;font-size:15px;color:var(--brown);margin-bottom:14px;font-weight:600}
.inline-cta .buttons{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* === FAQ === */
.article-faq{max-width:780px;margin:30px auto;padding:0 48px 60px}
.article-faq h2{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:700;color:var(--brown);margin-bottom:24px;padding-bottom:14px;border-bottom:2px solid var(--green);text-align:left}
.faq-item{margin-bottom:18px;padding:22px 28px;background:#fff;border:1px solid var(--cream-dark);border-radius:14px}
.faq-item h3{font-family:'Noto Serif JP',serif;font-size:16px;font-weight:700;color:var(--green-darker);margin:0 0 12px;padding:0;border:none;display:flex;align-items:flex-start;gap:10px}
.faq-item h3::before{content:"Q";flex-shrink:0;width:28px;height:28px;background:var(--green);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.faq-item p{font-size:14px;line-height:1.95;color:var(--brown);margin:0;padding-left:38px;position:relative}
.faq-item p::before{content:"A";position:absolute;left:0;top:0;width:28px;height:28px;background:var(--coral);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-family:'Noto Serif JP',serif}

/* === Author === */
.article-author{max-width:780px;margin:40px auto;padding:0 48px}
.author-card{display:grid;grid-template-columns:120px 1fr;gap:24px;align-items:start;padding:28px 32px;background:var(--cream);border-radius:18px;border:1px solid var(--cream-dark)}
.author-photo{width:90px;aspect-ratio:1/1;background:linear-gradient(135deg,var(--pale-green) 0%,var(--beige) 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Noto Serif JP',serif;color:var(--green-dark);font-size:11px;text-align:center;line-height:1.4;overflow:hidden;flex-shrink:0}
/* 写真掲載NGの医師用：イニシャル1文字を大きく表示（多枝子先生など） */
.author-photo.no-photo{font-size:36px;font-weight:600;letter-spacing:0;color:var(--green-dark);background:linear-gradient(135deg,var(--pale-green) 0%,var(--beige) 100%)}
.author-info .label{font-family:'Noto Serif JP',serif;font-size:11px;color:var(--green-dark);letter-spacing:.15em;font-weight:600;margin-bottom:6px}
.author-info .role{font-family:'Noto Serif JP',serif;font-size:13px;color:var(--brown-light);margin-bottom:4px}
.author-info .name{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:700;color:var(--brown);margin-bottom:10px}
.author-info .bio{font-size:13px;line-height:1.85;color:var(--brown-light);margin-bottom:12px}
.author-info .comment{font-family:'Noto Serif JP',serif;font-size:13px;line-height:1.85;color:var(--brown);padding-top:12px;border-top:1px solid var(--cream-dark)}
.author-info .comment strong{color:var(--green-darker);font-weight:600}

.article-disclaimer{max-width:780px;margin:24px auto 60px;padding:0 48px;font-size:12px;color:var(--gray);line-height:1.85}
.article-disclaimer p{margin-bottom:6px}

/* === Related / Footer === */
.related-section{padding:60px 48px;background:var(--cream)}
.related-inner{max-width:1140px;margin:0 auto}
.related-section h2{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:700;text-align:center;color:var(--brown);margin-bottom:30px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{display:block;padding:22px 24px;background:#fff;border-radius:14px;border:1px solid var(--cream-dark);transition:all .3s}
.related-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(180,140,90,.12)}
.related-card .cat{display:inline-block;padding:3px 10px;background:var(--pale-green);color:var(--green-darker);border-radius:12px;font-size:11px;font-weight:600;margin-bottom:10px}
.related-card h3{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;color:var(--brown);line-height:1.5;margin-bottom:6px}
.related-card p{font-size:12px;color:var(--brown-light);line-height:1.7}

.footer-cta{padding:50px 48px;background:linear-gradient(135deg,var(--green) 0%,var(--green-dark) 100%);color:#fff;text-align:center}
.footer-cta h2{font-family:'Noto Serif JP',serif;font-size:24px;font-weight:600;margin-bottom:22px}
.footer-cta .ctabuttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.footer-cta .btn-white{padding:14px 28px;background:#fff;color:var(--green-dark);border-radius:30px;font-family:'Noto Serif JP',serif;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:all .2s;text-decoration:none}
.footer-cta .btn-white:hover{background:var(--cream);transform:translateY(-2px)}

.footer{padding:54px 48px 24px;background:var(--brown);color:#e7d9c0}
.footer-inner{max-width:1140px;margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:48px}
.footer-logo{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-logo small{display:block;font-size:11px;letter-spacing:.18em;color:var(--gray);font-weight:400;margin-top:4px}
.footer-addr{font-size:13px;line-height:1.9;margin-bottom:14px}
.footer-col h4{font-family:'Noto Serif JP',serif;font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.15)}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:13px;color:#cfc0a8;transition:color .2s}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{max-width:1140px;margin:36px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:12px;color:var(--gray)}

@media(max-width:840px){
  .hdr-top{flex-wrap:wrap;height:auto}
  .hdr-logo{padding:14px 16px;width:100%;justify-content:center;border-bottom:1px solid var(--cream-dark);border-right:none}
  .hdr-utils{width:100%}
  .hdr-spacer{display:none}
  .hdr-badge{flex:1;padding:10px 6px;font-size:11px}
  .hdr-icons{flex:0}
  .hdr-icon-btn{width:48px}
  .hdr-nav{overflow-x:auto;white-space:nowrap;flex-wrap:nowrap}
  .hdr-nav-item{flex:0 0 auto}
  .nav-link{padding:14px 16px;font-size:13px}
  .hdr-nav-item .submenu{position:static;display:none;padding:14px 18px;grid-template-columns:1fr}
  .article-hero,.article-toc,.article-body,.article-faq,.article-author,.article-disclaimer,.related-section,.footer-cta,.footer{padding-left:20px;padding-right:20px}
  .article-hero{padding-top:30px;padding-bottom:30px}
  .article-title{font-size:22px}
  .article-body{padding-top:40px;padding-bottom:40px}
  .article-body h2{font-size:20px;margin:40px 0 18px}
  .article-body h3{font-size:17px}
  .toc-grid{grid-template-columns:1fr;gap:8px}
  .toc-inner{padding:20px 22px}
  .stat-grid,.stat-grid.two{grid-template-columns:1fr;gap:10px}
  .compare-grid,.mech-grid{grid-template-columns:1fr;gap:12px}
  .article-body table.data-table{font-size:12px}
  .article-body table.data-table th,.article-body table.data-table td{padding:9px 11px}
  .author-card{grid-template-columns:1fr;gap:16px;padding:20px 22px;text-align:center}
  .author-photo{width:100px;justify-self:center}
  .related-grid{grid-template-columns:1fr;gap:14px}
  .footer-inner{grid-template-columns:1fr;gap:30px}
}

/* === FAQ アコーディオン（details/summary 版） === */
details.faq-item{cursor:pointer}
details.faq-item>summary{list-style:none;display:flex;align-items:flex-start;justify-content:space-between;cursor:pointer;user-select:none}
details.faq-item>summary::-webkit-details-marker{display:none}
details.faq-item>summary::marker{display:none}
details.faq-item>summary h3{margin:0;flex:1}
details.faq-item>summary::after{content:"▼";flex-shrink:0;font-size:11px;color:var(--green);margin-left:14px;margin-top:7px;transition:transform .25s ease}
details.faq-item[open]>summary::after{transform:rotate(-180deg)}
details.faq-item[open]>summary h3{margin-bottom:0}
details.faq-item>p{margin-top:14px}

/* === Sticky CTA Bar (5ボタン) === */
body{padding-bottom:64px}
.sticky-cta{position:fixed;bottom:0;left:0;right:0;z-index:9999;display:flex;height:64px;background:rgba(255,255,255,.97);backdrop-filter:blur(6px);box-shadow:0 -2px 12px rgba(0,0,0,.1);border-top:1px solid #e8ddd0}
.sticky-btn{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:6px 1px;text-decoration:none;font-size:8.5px;font-weight:700;gap:2px;transition:opacity .2s;letter-spacing:.01em;font-family:'Noto Sans JP',sans-serif;line-height:1.3}
.sticky-btn:hover{opacity:.82}
.sticky-btn svg{width:18px;height:18px;flex-shrink:0}
.sticky-line-ai{background:#06C755;color:#fff}
.sticky-line-rsv{background:#05a347;color:#fff}
.sticky-web{background:#E08A6F;color:#fff}
.sticky-tel{background:#5a8564;color:#fff}
.sticky-insta{background:linear-gradient(135deg,#f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%);color:#fff}