@charset "UTF-8";

/* =========================================================
   リウマチ治療Q&A ─ 温かみ・安心感のあるカード型デザイン
   配色 / オフホワイト #F6F9FB, ソフトブルー #5B91C4(メイン),
        テラコッタ #C9744E(アクセント), ダークネイビー #2F3742
   ========================================================= */

:root {
  --bg:        #F6F9FB;
  --surface:   #FFFFFF;
  --ink:       #2F3742;
  --ink-soft:  #5E6B78;
  --sage:      #5B91C4;
  --sage-deep: #3E6FA0;
  --sage-tint: #E9F1F8;
  --coral:     #C9744E;
  --coral-deep:#AB5C39;
  --coral-tint:#F6E8DF;
  --line:      #DCE6EF;
  --shadow:    18px 18px 40px rgba(91, 145, 196, 0.14);
  --shadow-sm: 0 6px 18px rgba(47, 55, 66, 0.08);
  --radius:    20px;
  --radius-lg: 28px;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Sans", "ヒラギノ角ゴシック", "游ゴシック体", YuGothic, "Yu Gothic Medium", Meiryo, sans-serif;
  color: var(--ink);
  background-color: var(--bg);
  line-height: 1.9;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }

.sp-only { display: inline; }
@media (min-width: 768px) { .sp-only { display: none; } }

/* ===== ヘッダー ===== */
.site-header {
  position: relative;
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(201, 116, 78, 0.16), transparent 60%),
    radial-gradient(120% 100% at 0% 0%, rgba(91, 145, 196, 0.22), transparent 55%),
    var(--sage-tint);
  padding: 4rem 1.5rem 5rem;
  text-align: center;
  overflow: hidden;
}

@media (min-width: 768px) {
  .site-header { padding: 6rem 1.5rem 7rem; }
}

.header-inner { max-width: 760px; margin: 0 auto; }

.header-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--sage-deep);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  padding: 0.4em 1.4em;
  margin-bottom: 1.4rem;
  font-weight: 500;
}

.header-title {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  color: var(--ink);
  font-size: 2rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
  margin-bottom: 1.4rem;
}

@media (min-width: 768px) {
  .header-title { font-size: 3rem; }
}

.header-lead {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 2;
}

@media (min-width: 768px) {
  .header-lead { font-size: 1.05rem; }
}

.header-wave {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  line-height: 0;
}
.header-wave svg { width: 100%; height: 56px; display: block; }
.header-wave path { fill: var(--bg); }

@media (min-width: 768px) {
  .header-wave svg { height: 80px; }
}

/* ===== パンくず ===== */
.breadcrumb-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
}
.breadcrumb { display: flex; flex-wrap: wrap; gap: 0.4em; font-size: 0.78rem; color: var(--ink-soft); }
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before { content: "›"; margin: 0 0.6em; color: var(--line); }
.breadcrumb a { color: var(--sage-deep); border-bottom: 1px solid transparent; transition: border-color .2s; }
.breadcrumb a:hover { border-color: var(--sage); }

/* ===== セクション共通 ===== */
main { display: block; }

.intro {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 1rem;
  text-align: center;
}

.section-title {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: 0.9rem;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: "";
  display: block;
  width: 52px; height: 4px;
  margin: 0.7rem auto 0;
  border-radius: 999px;
  background: var(--coral);
}

@media (min-width: 768px) {
  .section-title { font-size: 1.9rem; }
}

.section-note {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.9;
}

/* ===== カードグリッド ===== */
.card-grid-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}
@media (min-width: 980px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
}

.qa-card { display: flex; }

.qa-card a {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.4rem 1.6rem 1.6rem;
  box-shadow: var(--shadow-sm);
  transition: transform .28s cubic-bezier(.2,.7,.3,1), box-shadow .28s, border-color .28s;
}

.qa-card a:hover,
.qa-card a:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--sage);
  outline: none;
}

/* Qバッジ ─ 手書き風の丸いバッジ（シグネチャー） */
.qa-badge {
  position: absolute;
  top: -16px;
  left: 22px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: #fff;
  background: var(--coral);
  border-radius: 50% 50% 50% 14px;
  box-shadow: 0 6px 14px rgba(210, 107, 83, 0.35);
  transition: transform .28s, background .28s;
}
.qa-card a:hover .qa-badge,
.qa-card a:focus-visible .qa-badge {
  transform: rotate(-8deg) scale(1.05);
  background: var(--coral-deep);
}

.qa-q {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 0.7rem;
}

.qa-sum {
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--ink-soft);
  flex-grow: 1;
  margin-bottom: 1.2rem;
}

.qa-more {
  align-self: flex-start;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--sage-deep);
  padding-right: 1.4em;
  position: relative;
  transition: color .2s;
}
.qa-more::after {
  content: "→";
  position: absolute;
  right: 0;
  transition: transform .25s;
}
.qa-card a:hover .qa-more { color: var(--coral-deep); }
.qa-card a:hover .qa-more::after { transform: translateX(4px); }

/* ===== 質問投稿エリア ===== */
.ask-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 1rem;
}

.ask-card {
  background:
    radial-gradient(140% 120% at 100% 0%, rgba(201, 116, 78, 0.20), transparent 55%),
    var(--sage);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 3rem 1.8rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.ask-title {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.6;
  margin-bottom: 0.9rem;
}
@media (min-width: 768px) {
  .ask-title { font-size: 1.7rem; }
}

.ask-text {
  font-size: 0.9rem;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 1.8rem;
}

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 0.95em 2.4em;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s;
  cursor: pointer;
}

.btn-primary {
  background: #fff;
  color: var(--sage-deep);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.16);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.22);
  background: var(--coral);
  color: #fff;
  outline: none;
}

.btn-ghost {
  background: transparent;
  color: var(--sage-deep);
  border: 2px solid var(--sage);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--sage);
  color: #fff;
  transform: translateY(-3px);
  outline: none;
}

/* ===== 関連リンク ===== */
.links-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) {
  .links-area { grid-template-columns: repeat(3, 1fr); }
}

.link-tile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.6rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.link-tile:hover,
.link-tile:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--coral);
  outline: none;
}
.link-tile-arrow {
  color: var(--coral);
  font-size: 1.1rem;
  transition: transform .25s;
}
.link-tile:hover .link-tile-arrow { transform: translateX(5px); }

/* ===== コラム ===== */
.column-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.column-card {
  background: var(--coral-tint);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.8rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .column-card { padding: 3rem 3rem; }
}

.column-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--coral-deep);
  background: #fff;
  border-radius: 999px;
  padding: 0.35em 1.2em;
  margin-bottom: 1rem;
}

.column-title {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 0.8rem;
}
@media (min-width: 768px) {
  .column-title { font-size: 1.8rem; }
}

.column-text {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 1.4rem;
}

.column-list { margin-bottom: 1.8rem; }
.column-list li { margin-bottom: 0.7rem; }
.column-list a {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--sage-deep);
  padding-left: 1.4em;
  position: relative;
  line-height: 1.7;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.column-list a::before {
  content: "♦";
  position: absolute;
  left: 0;
  color: var(--coral);
  font-size: 0.7em;
  top: 0.4em;
}
.column-list a:hover { color: var(--coral-deep); border-color: var(--coral); }

/* ===== フッター ===== */
.site-footer {
  background: var(--sage-deep);
  color: #fff;
  padding: 3rem 1.5rem 1.5rem;
  text-align: center;
}

.footer-inner { max-width: 640px; margin: 0 auto; }

.footer-supervisor-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  padding: 0.3em 1.2em;
  margin-bottom: 1.3rem;
}

.footer-clinic {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.footer-doctor { font-size: 0.95rem; margin-bottom: 0.4rem; }
.footer-doctor a { border-bottom: 1px dotted rgba(255, 255, 255, 0.7); }
.footer-doctor a:hover { border-color: #fff; }

.footer-license,
.footer-contact,
.footer-address {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.9;
}

.footer-copy {
  display: block;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ===== アクセシビリティ ===== */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* =========================================================
   個別Q&Aページ用スタイル（detail page）
   ========================================================= */

/* 記事ヘッダー(質問タイトル) */
.article-header {
  position: relative;
  background:
    radial-gradient(120% 90% at 85% -20%, rgba(201, 116, 78, 0.16), transparent 60%),
    radial-gradient(120% 110% at 0% 0%, rgba(91, 145, 196, 0.22), transparent 55%),
    var(--sage-tint);
  padding: 3.5rem 1.5rem 4rem;
  text-align: center;
  overflow: hidden;
}
@media (min-width: 768px) {
  .article-header { padding: 5rem 1.5rem 5.5rem; }
}

.article-header-inner { max-width: 820px; margin: 0 auto; }

.article-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--sage-deep);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 0.4em 1.4em;
  margin-bottom: 1.3rem;
  font-weight: 500;
}

.article-title {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
}
@media (min-width: 768px) {
  .article-title { font-size: 2.1rem; }
}

/* 本文ラッパ */
.article {
  max-width: 820px;
  margin: 0 auto;
  padding: 1rem 1.5rem 1rem;
}

.article-lead-img {
  border-radius: var(--radius);
  margin: 1.5rem auto 0.5rem;
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 600px;
}

/* Q&Aブロック */
.qa-block {
  margin: 2.5rem 0;
}

.qa-question {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--sage-tint);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin-bottom: 1.4rem;
}
.qa-question .mark {
  flex-shrink: 0;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  background: var(--sage);
  border-radius: 50% 50% 50% 12px;
}
.qa-question h2 {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.65;
  color: var(--sage-deep);
  padding-top: 4px;
}
@media (min-width: 768px) {
  .qa-question h2 { font-size: 1.3rem; }
}

.qa-answer {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 0.3rem;
}
.qa-answer .mark {
  flex-shrink: 0;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  background: var(--coral);
  border-radius: 50% 50% 50% 12px;
}
.qa-answer-body { flex: 1; min-width: 0; }

.qa-answer-body p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--ink);
  margin-bottom: 1rem;
  text-align: justify;
}

.qa-answer-body h3 {
  font-family: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  margin: 1.8rem 0 0.8rem;
  padding-left: 0.7rem;
  border-left: 4px solid var(--coral);
  line-height: 1.6;
}

.qa-answer-body h4 {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--sage-deep);
  margin: 1.4rem 0 0.6rem;
}

.qa-answer-body img {
  border-radius: var(--radius);
  margin: 1.2rem auto;
  box-shadow: var(--shadow-sm);
}

.qa-answer-body ul.points {
  margin: 1rem 0 1.4rem;
}
.qa-answer-body ul.points li {
  position: relative;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--ink);
  padding-left: 1.6em;
  margin-bottom: 0.6rem;
}
.qa-answer-body ul.points li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--coral);
}

.qa-answer-body .emph {
  font-weight: 700;
  color: var(--coral-deep);
}

/* 本文内の関連リンクボックス */
.inline-links {
  background: var(--coral-tint);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  margin: 2rem 0;
}
.inline-links .inline-links-title {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--coral-deep);
  background: #fff;
  border-radius: 999px;
  padding: 0.3em 1.1em;
  margin-bottom: 0.9rem;
}
.inline-links ul li { margin-bottom: 0.6rem; }
.inline-links ul li:last-child { margin-bottom: 0; }
.inline-links ul li a {
  display: inline-block;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--sage-deep);
  padding-left: 1.3em;
  position: relative;
  line-height: 1.7;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.inline-links ul li a::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--coral);
}
.inline-links ul li a:hover { color: var(--coral-deep); border-color: var(--coral); }

/* 一覧へ戻る導線 */
.back-to-list {
  text-align: center;
  padding: 1rem 1.5rem 0;
}

/* 他の質問セクション見出し */
.other-q-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 1rem;
}