/* ==========================================================
   読みもの（/reading/...）の記事ページ専用
   クラス名は ar- で始める。色と書体は site-new.css のものを使う。
   文字を読むページなので、行の幅をせまくし、行間を広めにしている。
   ========================================================== */

.ar-wrap { width: 100%; max-width: calc(720px + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- 見出しの帯 ---------- */
.ar-hero { background: var(--mint); padding-block: clamp(24px, 3vw, 40px) clamp(40px, 6vw, 72px); }
.ar-tag { margin-top: 26px; display: inline-block; padding: 0.3em 1em; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; color: #5a7663; }
.ar-hero__title { margin-top: 18px; font-size: clamp(1.9rem, 1.2rem + 3.2vw, 3.1rem); font-weight: 700; line-height: 1.4; letter-spacing: 0.04em; }
.ar-hero__lead { margin-top: 20px; font-size: 1.05rem; color: var(--ink-soft); }
.ar-meta { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 0.82rem; color: var(--ink-soft); }
.ar-meta span + span { padding-left: 20px; border-left: 1px solid var(--line); }

/* ---------- 本文 ---------- */
.ar-body { padding-block: clamp(36px, 5vw, 64px) clamp(56px, 8vw, 100px); font-size: 1.06rem; line-height: 2.05; }
.ar-body section { margin-top: clamp(52px, 7vw, 84px); }
.ar-body h2 { position: relative; padding-left: 20px; font-size: clamp(1.35rem, 1.1rem + 1.1vw, 1.75rem); line-height: 1.55; letter-spacing: 0.04em; }
.ar-body h2::before { content: ""; position: absolute; left: 0; top: 0.3em; bottom: 0.3em; width: 5px; border-radius: 3px; background: var(--blue); }
.ar-body section > p { margin-top: 1.25em; }
.ar-body section > h2 + p { margin-top: 1.4em; }
.ar-body strong { background: linear-gradient(transparent 62%, #d9eedd 62%); font-weight: 700; }
.ar-note { font-size: 0.84rem; line-height: 1.75; color: var(--ink-soft); }
.ar-body section > p.ar-note { margin-top: 12px; }

/* 先に、答えだけ */
.ar-answer { padding: clamp(22px, 3.4vw, 36px); background: #fff; border: 2px solid var(--ink); border-radius: 14px; box-shadow: 6px 6px 0 var(--leaf); }
.ar-answer__label { display: inline-block; padding: 0.15em 0.9em; background: var(--ink); color: #fff; border-radius: 999px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; }
.ar-answer ul { margin-top: 14px; }
.ar-answer li { position: relative; padding: 10px 0 10px 1.5em; border-top: 1px dashed var(--line); line-height: 1.75; }
.ar-answer li:first-child { border-top: 0; }
.ar-answer li::before { content: ""; position: absolute; left: 0.2em; top: 1.2em; width: 0.5em; height: 0.5em; border-radius: 50%; background: var(--blue); }

/* 表 */
.ar-table-wrap { margin-top: 1.4em; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.ar-table { width: 100%; border-collapse: collapse; background: #fff; font-size: 0.98rem; line-height: 1.5; }
.ar-table th, .ar-table td { padding: 13px 16px; border-bottom: 1px solid var(--line); text-align: center; }
.ar-table thead th { background: var(--ink); color: #fff; font-size: 0.85rem; }
.ar-table tbody th { text-align: left; font-weight: 500; background: var(--paper); }
.ar-table tbody td:nth-child(2) { background: var(--mint); }
.ar-table tr:last-child th, .ar-table tr:last-child td { border-bottom: 0; }
.ar-table strong { background: none; font-size: 1.2rem; }

/* 3つの数字（ものさし） */
.ar-scale, .ar-chart { margin: 1.8em 0 0; padding: clamp(20px, 3vw, 32px); background: var(--wall); border-radius: 12px; }
.ar-scale figcaption, .ar-chart figcaption { font-size: 0.9rem; font-weight: 700; line-height: 1.5; }
.ar-scale__bar { position: relative; height: 14px; margin: 86px 6px 74px; border-radius: 999px; background: #fff; border: 1px solid var(--line); }
.ar-scale__fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 999px; background: var(--blue); }
.ar-scale__mark { position: absolute; top: 50%; width: 0; }
.ar-scale__mark::before { content: ""; position: absolute; left: -1px; width: 2px; background: var(--ink); }
.ar-scale__mark b, .ar-scale__mark small { position: absolute; left: 50%; transform: translateX(-50%); white-space: nowrap; text-align: center; line-height: 1.35; }
.ar-scale__mark b { font-size: 1.25rem; }
.ar-scale__mark small { font-size: 0.72rem; color: var(--ink-soft); }
.ar-scale__mark--now::before, .ar-scale__mark--ideal::before { top: 7px; height: 16px; }
.ar-scale__mark--now b, .ar-scale__mark--ideal b { top: 26px; }
.ar-scale__mark--now small, .ar-scale__mark--ideal small { top: 56px; }
.ar-scale__mark--goal::before { bottom: 7px; height: 16px; }
.ar-scale__mark--goal b { bottom: 58px; color: var(--blue-deep); }
.ar-scale__mark--goal small { bottom: 24px; }
.ar-scale__mark--now b, .ar-scale__mark--now small { transform: translateX(-80%); }

/* 年代ごとの棒グラフ */
.ar-chart__plot { position: relative; margin-top: 40px; }
.ar-chart ul { display: grid; gap: 12px; }
.ar-chart li { display: grid; grid-template-columns: 3em minmax(0, 1fr) 3.6em; align-items: center; gap: 10px; line-height: 1.3; }
.ar-chart__age { font-size: 0.88rem; font-weight: 700; }
.ar-chart__track { display: block; height: 24px; border-radius: 6px; background: #fff; overflow: hidden; }
.ar-chart__bar { display: block; height: 100%; width: var(--w); border-radius: 6px; background: var(--blue); transform-origin: left center; transform: scaleX(0); transition: transform 1.1s cubic-bezier(0.2, 0.7, 0.2, 1) 0.2s; }
.ar-chart__bar--ok { background: var(--sage); }
.ar-chart.is-in .ar-chart__bar { transform: none; }
.ar-chart__val { font-size: 0.92rem; font-weight: 700; text-align: right; }
/* 目標の線。棒の枠（年代の文字と数字を除いた部分）の72%の位置＝18g */
.ar-chart__line { position: absolute; top: -8px; bottom: -8px; left: calc(3em + 10px + (100% - 3em - 3.6em - 20px) * 0.72); width: 0; border-left: 2px dashed var(--ink); }
.ar-chart__line em { position: absolute; left: 50%; top: -26px; transform: translateX(-50%); padding: 0 0.6em; border-radius: 999px; background: var(--ink); color: #fff; font-size: 0.74rem; font-style: normal; font-weight: 700; white-space: nowrap; line-height: 1.8; }

/* あと3g の食べ物 */
.ar-foods { margin: 1.6em 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.ar-foods li { display: flex; flex-direction: column; padding: 18px 14px 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; text-align: center; line-height: 1.5; transition: transform 0.4s, box-shadow 0.4s, opacity 1s ease; }
.ar-foods li:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(43, 58, 56, 0.08); }
.ar-foods__name { font-weight: 700; font-size: 1.08rem; }
.ar-foods__amount { margin-top: 2px; font-size: 0.78rem; color: var(--ink-soft); flex: 1; }
.ar-foods__g { margin-top: 10px; padding-top: 8px; border-top: 1px dashed var(--line); font-size: 0.9rem; font-weight: 700; color: var(--blue-deep); }
.ar-foods__g b { font-size: 1.7rem; letter-spacing: 0; }

/* 2つの種類 */
.ar-types { margin-top: 1.6em; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ar-types__card { padding: clamp(18px, 2.6vw, 26px); border-radius: 12px; background: var(--mint); border: 1px solid var(--line); }
.ar-types__card:last-child { background: var(--wall); }
.ar-types__label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; color: #5a7663; line-height: 1.5; }
.ar-types__card h3 { margin-top: 2px; font-size: 1.12rem; line-height: 1.6; }
.ar-types__card p + p, .ar-types__card h3 + p { margin-top: 8px; font-size: 0.95rem; line-height: 1.85; color: var(--ink-soft); }

/* 土屋のひとこと（吹き出し） */
.ar-voice { position: relative; margin-top: 2em; padding: clamp(20px, 3vw, 28px) clamp(20px, 3vw, 30px); border-radius: 16px 16px 16px 4px; background: #fff; border: 1.5px solid var(--sage); font-size: 0.98rem; line-height: 1.95; }
.ar-voice__label { display: inline-block; margin-bottom: 6px; padding: 0.1em 0.9em; border-radius: 999px; background: var(--sage); color: #fff; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; line-height: 1.9; }
.ar-voice p + p { margin-top: 0.7em; }

/* 流れの図（1→2→3→4） */
.ar-flow { margin: 1.8em 0 0; padding: clamp(20px, 3vw, 32px); background: var(--wall); border-radius: 12px; }
.ar-flow figcaption { font-size: 0.9rem; font-weight: 700; line-height: 1.5; }
.ar-flow ol { margin: 18px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.ar-flow li { position: relative; display: flex; flex-direction: column; align-items: center; padding: 18px 8px 16px; background: #fff; border-radius: 12px; text-align: center; line-height: 1.5; }
.ar-flow li + li::before { content: ""; position: absolute; left: -16px; top: 50%; width: 8px; height: 8px; border-top: 2.5px solid var(--blue); border-right: 2.5px solid var(--blue); transform: translateY(-50%) rotate(45deg); }
.ar-flow__step { display: grid; place-items: center; width: 1.9em; height: 1.9em; border-radius: 50%; background: var(--blue); color: #fff; font-size: 0.85rem; font-weight: 700; }
.ar-flow b { margin-top: 8px; font-size: 0.98rem; }
.ar-flow small { margin-top: 4px; font-size: 0.74rem; color: var(--ink-soft); }
.ar-flow li:last-child { background: var(--ink); color: #fff; }
.ar-flow li:last-child small { color: #d5ddd3; }
.ar-flow li:last-child .ar-flow__step { background: #fff; color: var(--ink); }

/* 3つの酸 */
.ar-acids { margin-top: 1.6em; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.ar-acids__card { padding: 20px 16px; background: #fff; border: 1px solid var(--line); border-radius: 12px; line-height: 1.6; }
.ar-acids__card--main { background: var(--mint); border-color: var(--sage); }
.ar-acids__en { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; color: #5a7663; }
.ar-acids__card h3 { margin-top: 2px; font-size: 1.2rem; }
.ar-acids__card h3 small { margin-left: 0.5em; font-size: 0.72rem; font-weight: 500; color: var(--ink-soft); }
.ar-acids__card h3 + p { margin-top: 8px; font-size: 0.9rem; line-height: 1.8; color: var(--ink-soft); }

/* 4つのバイオティクス（庭のたとえ） */
.ar-four { margin: 1.6em 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.ar-four li { display: flex; flex-direction: column; padding: 20px 18px; background: #fff; border: 1px solid var(--line); border-radius: 12px; line-height: 1.6; }
.ar-four__mark { align-self: flex-start; padding: 0.1em 0.9em; border-radius: 999px; background: var(--blue); color: #fff; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.08em; line-height: 1.9; }
.ar-four li:nth-child(2) .ar-four__mark { background: var(--sage); }
.ar-four li:nth-child(3) .ar-four__mark { background: linear-gradient(90deg, var(--blue) 50%, var(--sage) 50%); }
.ar-four li:nth-child(4) .ar-four__mark { background: #8a8f8c; }
.ar-four b { margin-top: 10px; font-size: 1.08rem; }
.ar-four small { margin-top: 4px; font-size: 0.84rem; color: var(--ink-soft); }
.ar-table--left td { text-align: left; }
.ar-table--left tbody td:nth-child(2) { font-weight: 700; }
.ar-answer li strong { background: none; color: var(--blue-deep); }

.ar-types__card--new { background: #fff !important; border: 2px solid var(--blue); }
.ar-chart__plot--plain { margin-top: 18px; }
.ar-chart__plot--plain li { grid-template-columns: 4em minmax(0, 1fr) 3.6em; }

/* イヌリンの形（つぶのくさり） */
.ar-chain { margin: 1.8em 0 0; padding: clamp(20px, 3vw, 32px); background: var(--wall); border-radius: 12px; }
.ar-chain figcaption { font-size: 0.9rem; font-weight: 700; line-height: 1.5; }
.ar-chain__row { margin-top: 18px; padding: 16px 18px; background: #fff; border-radius: 12px; line-height: 1.5; }
.ar-chain__name { display: block; font-weight: 700; }
.ar-chain__beads { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; margin-top: 10px; }
.ar-chain i { display: inline-block; width: 20px; height: 20px; border-radius: 50%; background: var(--sage); flex: none; }
.ar-chain i.g { background: var(--blue); }
.ar-chain__beads em { margin-left: 4px; font-style: normal; font-weight: 700; color: var(--ink-soft); }
.ar-chain__len { display: block; margin-top: 8px; font-size: 0.82rem; color: var(--ink-soft); }
.ar-chain__key { margin-top: 14px; display: flex; align-items: center; gap: 6px; font-size: 0.8rem; color: var(--ink-soft); line-height: 1.5; }
.ar-chain__key i { width: 14px; height: 14px; }

/* 食べ物の名前（丸い札） */
.ar-chips { margin: 1.4em 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.ar-chips li { padding: 0.35em 1.2em; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-weight: 700; line-height: 1.7; }
.ar-chips li.is-main { background: var(--blue); border-color: var(--blue); color: #fff; }

/* 脳と腸の、行きと帰り */
.ar-loop { margin: 1.8em 0 0; padding: clamp(20px, 3vw, 32px); background: var(--wall); border-radius: 12px; }
.ar-loop figcaption { font-size: 0.9rem; font-weight: 700; line-height: 1.5; }
.ar-loop__box { margin-top: 18px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 14px; }
.ar-loop__node { display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%; background: var(--blue); color: #fff; font-size: 1.5rem; font-weight: 700; }
.ar-loop__node--gut { background: var(--sage); }
.ar-loop__arrows { display: grid; gap: 10px; }
.ar-loop__go, .ar-loop__back { position: relative; display: block; padding: 10px 16px; background: #fff; border-radius: 10px; font-size: 0.86rem; line-height: 1.6; }
.ar-loop__go b, .ar-loop__back b { display: inline-block; margin-right: 0.8em; padding: 0 0.7em; border-radius: 999px; background: var(--blue); color: #fff; font-size: 0.74rem; line-height: 1.9; }
.ar-loop__back b { background: var(--sage); }
.ar-loop__go::after, .ar-loop__back::before { content: ""; position: absolute; top: 50%; width: 9px; height: 9px; border-top: 2.5px solid var(--ink); border-right: 2.5px solid var(--ink); }
.ar-loop__go::after { right: -9px; transform: translateY(-50%) rotate(45deg); }
.ar-loop__back::before { left: -9px; transform: translateY(-50%) rotate(-135deg); }

/* 〇〇腸相関のカード */
.ar-axis { margin: 1.6em 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.ar-axis li { padding: 22px 20px; background: #fff; border: 1px solid var(--line); border-radius: 12px; line-height: 1.6; }
.ar-axis__pair { display: flex; align-items: center; gap: 10px; }
.ar-axis__pair span { padding: 0.15em 1em; border-radius: 999px; background: var(--blue); color: #fff; font-size: 0.9rem; font-weight: 700; line-height: 1.9; }
.ar-axis__pair span:last-child { background: var(--sage); }
.ar-axis__pair i { font-style: normal; font-weight: 700; color: var(--ink-soft); }
.ar-axis h3 { margin-top: 12px; font-size: 1.15rem; }
.ar-axis h3 + p { margin-top: 6px; font-size: 0.93rem; line-height: 1.85; color: var(--ink-soft); }

/* 1日の食事（朝・昼・夜） */
.ar-meals { margin: 1.6em 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.ar-meals li { padding: 20px 18px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.ar-meals__when { display: grid; place-items: center; width: 2.4em; height: 2.4em; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 700; }
.ar-meals li:nth-child(2) .ar-meals__when { background: var(--sage); }
.ar-meals li:nth-child(3) .ar-meals__when { background: var(--ink); }
.ar-meals p { margin-top: 12px; font-size: 0.95rem; line-height: 1.9; }
.ar-sign { font-weight: 700; text-align: right; }
.ar-chart__plot--wide li { grid-template-columns: 6em minmax(0, 1fr) 4.4em; }

/* 本文の中の箇条書き */
.ar-list { margin: 1.3em 0 0; padding: 4px clamp(16px, 2.6vw, 26px); background: var(--paper); border: 1px solid var(--line); border-radius: 12px; }
.ar-list li { position: relative; padding: 12px 0 12px 1.4em; border-top: 1px dashed var(--line); line-height: 1.8; }
.ar-list li:first-child { border-top: 0; }
.ar-list li::before { content: ""; position: absolute; left: 0.15em; top: 1.3em; width: 0.5em; height: 0.5em; border-radius: 50%; background: var(--sage); }

/* 分かっていること・はっきりしないこと */
.ar-honest { margin-top: 1.4em; padding: clamp(20px, 3vw, 30px); border-radius: 12px; background: #fff; border: 2px solid var(--ink); }
.ar-honest__label { display: inline-block; padding: 0.1em 0.9em; border-radius: 999px; background: var(--blue); color: #fff; font-size: 0.8rem; font-weight: 700; line-height: 1.9; }
.ar-honest__label--not { margin-top: 20px; background: #8a8f8c; }
.ar-honest ul { margin-top: 8px; }
.ar-honest li { position: relative; padding: 5px 0 5px 1.3em; line-height: 1.8; }
.ar-honest li::before { content: ""; position: absolute; left: 0.2em; top: 0.95em; width: 0.45em; height: 0.45em; border-radius: 50%; background: var(--ink); }

/* 前後の記事へのリンク */
.ar-next a { display: block; padding: 16px 20px; border-radius: 12px; background: var(--leaf); font-weight: 700; text-decoration: none; line-height: 1.6; transition: background-color 0.3s; }
.ar-next a::after { content: " →"; color: var(--blue); }
.ar-next a:hover { background: #d9e6d9; }

/* 引用・注意・まとめ */
.ar-quote { margin: 1.6em 0 0; padding: clamp(20px, 3vw, 30px) clamp(20px, 3vw, 32px); border-left: 5px solid var(--sage); background: var(--paper); border-radius: 0 10px 10px 0; }
.ar-quote p { font-weight: 700; line-height: 1.9; }
.ar-quote cite { display: block; margin-top: 10px; font-size: 0.82rem; font-style: normal; color: var(--ink-soft); }
.ar-caution { margin-top: 1.4em; padding: clamp(20px, 3vw, 30px); border-radius: 12px; background: #fdf6e9; border: 1px solid #ecdcbc; }
.ar-caution p + p { margin-top: 0.8em; }
.ar-caution strong { background: none; font-size: 1.08rem; }
.ar-summary { padding: clamp(24px, 3.6vw, 40px); background: var(--leaf); border-radius: 14px; }
.ar-body .ar-summary h2 { padding-left: 0; }
.ar-body .ar-summary h2::before { display: none; }
.ar-summary ul { margin-top: 12px; }
.ar-summary li { position: relative; padding: 8px 0 8px 1.7em; line-height: 1.75; }
.ar-summary li::before { content: ""; position: absolute; left: 0.2em; top: 0.95em; width: 0.9em; height: 0.5em; border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }

/* 書いた人・出典 */
.ar-author { margin-top: clamp(40px, 6vw, 64px); padding: clamp(20px, 3vw, 30px); border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.ar-author__label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; color: #5a7663; line-height: 1.5; }
.ar-author__name { margin-top: 2px; font-size: 1.2rem; font-weight: 700; line-height: 1.6; }
.ar-author__name small { display: block; font-size: 0.8rem; font-weight: 500; color: var(--ink-soft); }
.ar-author__name + p { margin-top: 10px; font-size: 0.95rem; line-height: 1.9; color: var(--ink-soft); }
.ar-body .ar-sources { margin-top: clamp(36px, 5vw, 56px); padding-top: 24px; border-top: 1px solid var(--line); }
.ar-body .ar-sources h2 { padding-left: 0; font-size: 1rem; }
.ar-body .ar-sources h2::before { display: none; }
.ar-sources ol { margin: 10px 0 14px; padding-left: 1.4em; font-size: 0.84rem; line-height: 1.8; color: var(--ink-soft); }
.ar-sources li + li { margin-top: 4px; }
.ar-back { margin-top: clamp(36px, 5vw, 56px); text-align: center; }

/* ---------- 一覧ページ（/reading） ---------- */
.ar-body .rd-first { margin-top: 0; }
.rd-list { margin: clamp(28px, 4vw, 44px) 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.rd-list a, .rd-list div { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: clamp(14px, 2.4vw, 24px); padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.8vw, 28px); background: #fff; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; line-height: 1.6; transition: transform 0.4s, box-shadow 0.4s, border-color 0.4s; }
.rd-list a:hover { transform: translateY(-3px); border-color: var(--blue); box-shadow: 0 12px 26px rgba(43, 58, 56, 0.08); }
.rd-list__num { display: grid; place-items: center; width: 2.6em; height: 2.6em; border-radius: 50%; background: var(--mint); border: 1px solid var(--line); font-size: 0.95rem; font-weight: 700; color: var(--blue-deep); letter-spacing: 0.04em; }
.rd-list__text b { display: block; font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.25rem); }
.rd-list__text small { display: block; margin-top: 4px; font-size: 0.88rem; line-height: 1.75; color: var(--ink-soft); }
.rd-list__min { padding: 0.1em 0.9em; border-radius: 999px; background: var(--leaf); font-size: 0.76rem; font-weight: 700; white-space: nowrap; line-height: 2; }
.rd-list .is-soon div { background: var(--paper); border-style: dashed; color: var(--ink-soft); }
.rd-list .is-soon .rd-list__min { background: #e6e6e3; }
.ar-body .rd-rule { margin-top: clamp(44px, 6vw, 68px); padding: clamp(22px, 3.4vw, 36px); background: var(--leaf); border-radius: 14px; }
.ar-body .rd-rule h2 { padding-left: 0; font-size: 1.2rem; }
.ar-body .rd-rule h2::before { display: none; }
.rd-rule ul { margin-top: 10px; }
.rd-rule li { position: relative; padding: 6px 0 6px 1.7em; line-height: 1.75; }
.rd-rule li::before { content: ""; position: absolute; left: 0.2em; top: 0.85em; width: 0.9em; height: 0.5em; border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }

/* ---------- 画面が狭いとき ---------- */
@media (max-width: 600px) {
  .ar-body { font-size: 1rem; line-height: 2; }
  .ar-foods { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ar-types { grid-template-columns: 1fr; }
  .ar-acids { grid-template-columns: 1fr; }
  .ar-four { grid-template-columns: 1fr; }
  .ar-meals { grid-template-columns: 1fr; }
  .ar-chart__plot--wide li { grid-template-columns: 5.4em minmax(0, 1fr) 4.2em; }
  .rd-list a, .rd-list div { grid-template-columns: auto minmax(0, 1fr); }
  .rd-list__min { grid-column: 2; justify-self: start; }
  .ar-axis { grid-template-columns: 1fr; }
  .ar-loop__box { grid-template-columns: 1fr; justify-items: center; gap: 16px; }
  .ar-loop__arrows { width: 100%; }
  .ar-loop__go::after { right: 50%; top: auto; bottom: -9px; transform: translateX(50%) rotate(135deg); }
  .ar-loop__back::before { left: 50%; top: -9px; transform: translateX(-50%) rotate(-45deg); }
  .ar-loop__node { width: 68px; height: 68px; font-size: 1.25rem; }
  .ar-chain i { width: 15px; height: 15px; }
  .ar-chain__beads { gap: 3px; }
  .ar-flow ol { grid-template-columns: 1fr; gap: 22px; }
  .ar-flow li + li::before { left: 50%; top: -15px; transform: translateX(-50%) rotate(135deg); }
  .ar-table th, .ar-table td { padding: 11px 8px; font-size: 0.9rem; }
  .ar-meta span + span { padding-left: 0; border-left: 0; }
  .ar-scale__mark b { font-size: 1.05rem; }
  .ar-scale__mark small { font-size: 0.66rem; }
  .ar-chart li { grid-template-columns: 2.6em minmax(0, 1fr) 3.4em; gap: 8px; }
  .ar-chart__line { left: calc(2.6em + 8px + (100% - 2.6em - 3.4em - 16px) * 0.72); }
}