:root {
  --ink: #2A2420;
  --line-green: #06C755;
  --line-green-d: #05B24C;
  --accent: #A98B6F;
  --beige-light: #F7F4F0;
  --cream: #FFFFFF;
  --text-dark: #221E1A;
  --text-medium: #5A534C;
  --text-light: #776F65;
  --accent-text: #876B51;
  --line: #E7E1D9;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
picture { display: contents; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans JP', sans-serif; font-weight: 300; color: var(--text-dark); background: var(--cream); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.04); } }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.94); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 12px 24px; }
.nav-logo { font-family: 'Cormorant Garamond', serif; font-weight: 500; font-size: 18px; letter-spacing: 4px; color: var(--ink); text-decoration: none; }
.nav-logo span { font-size: 11px; letter-spacing: 3px; color: var(--text-light); display: block; margin-top: 2px; }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a { text-decoration: none; font-size: 10px; letter-spacing: 2px; color: var(--text-light); transition: color 0.3s; text-align: center; }
.nav-links a:hover { color: var(--ink); }
.nav-links .nav-en { display: block; font-family: 'Cormorant Garamond', serif; font-size: 13px; letter-spacing: 1px; color: var(--text-dark); margin-bottom: 2px; }
@media (max-width: 767px) { .nav-links { display: none; } }

/* ARTICLE HEAD */
.art-head { padding: 122px 24px 48px; background: var(--beige-light); }
.art-head-inner { max-width: 720px; margin: 0 auto; }
.crumb { font-size: 12px; letter-spacing: 1px; color: var(--text-light); margin-bottom: 18px; }
.crumb a { color: var(--text-light); text-decoration: none; }
.crumb a:hover { color: var(--ink); }
.art-cat { display: inline-block; padding: 5px 14px; background: var(--accent); color: #fff; font-size: 11px; letter-spacing: 2px; border-radius: 2px; margin-bottom: 16px; }
h1.art-title { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: clamp(21px, 4.2vw, 30px); line-height: 1.75; letter-spacing: 1.5px; color: var(--text-dark); }
.art-meta { margin-top: 18px; font-size: 12px; letter-spacing: 1px; color: var(--text-light); }

/* ARTICLE BODY */
.art { max-width: 720px; margin: 0 auto; padding: 56px 24px 24px; }
.art .lead { font-size: 16px; line-height: 2.2; color: var(--text-dark); margin-bottom: 44px; }
.art h2 { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: clamp(18px, 3.4vw, 22px); letter-spacing: 1.5px; line-height: 1.7; color: var(--text-dark); margin: 56px 0 20px; padding-left: 16px; border-left: 3px solid var(--accent); }
.art h3 { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: 16px; letter-spacing: 1px; color: var(--text-dark); margin: 36px 0 14px; }
.art p { font-size: 15px; line-height: 2.2; color: var(--text-medium); }
.art p + p { margin-top: 20px; }
.art strong { font-weight: 500; color: var(--text-dark); }
.art ul, .art ol { margin: 20px 0; padding-left: 0; list-style: none; }
.art li { position: relative; padding-left: 20px; font-size: 15px; line-height: 2.1; color: var(--text-medium); }
.art li + li { margin-top: 6px; }
.art ul li::before { content: ''; position: absolute; left: 4px; top: 14px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.art ol { counter-reset: n; }
.art ol li { padding-left: 28px; }
.art ol li::before { counter-increment: n; content: counter(n) '.'; position: absolute; left: 2px; font-family: 'Cormorant Garamond', serif; font-size: 15px; color: var(--accent-text); }
.art figure { margin: 32px 0; }
.art figure img { width: 100%; height: auto; border-radius: 4px; display: block; }
.art figcaption { margin-top: 10px; font-size: 12px; line-height: 1.9; color: var(--text-light); text-align: center; }
.art table { width: 100%; border-collapse: collapse; margin: 28px 0; background: #fff; font-size: 14px; }
.art th, .art td { padding: 14px 12px; text-align: left; line-height: 1.9; border-bottom: 1px solid var(--line); vertical-align: top; }
.art thead th { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: 13px; letter-spacing: 1px; color: var(--text-light); border-bottom: 2px solid var(--ink); }
.art td:first-child { color: var(--text-dark); font-weight: 500; white-space: nowrap; }
.callout { margin: 32px 0; padding: 22px 24px; background: var(--beige-light); border-radius: 4px; }
.callout p { font-size: 14px; line-height: 2.1; color: var(--text-dark); }
.callout .callout-head { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: 15px; letter-spacing: 1px; color: var(--text-dark); margin-bottom: 10px; }
.note { margin: 40px 0 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 4px; }
.note p { font-size: 14px; line-height: 2; color: var(--text-dark); }

/* RELATED + CTA */
.related { max-width: 720px; margin: 60px auto 0; padding: 0 24px; }
.related h2 { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: 17px; letter-spacing: 1.5px; color: var(--text-dark); margin-bottom: 18px; padding-left: 14px; border-left: 3px solid var(--accent); }
.related ul { list-style: none; }
.related li { border-bottom: 1px solid var(--line); }
.related a { display: block; padding: 16px 0; font-size: 15px; line-height: 1.8; color: var(--text-medium); text-decoration: none; transition: color 0.3s; }
.related a:hover { color: var(--accent-text); }
.cta-area { text-align: center; padding: 64px 24px 96px; }
.cta-lead { font-family: 'Noto Serif JP', serif; font-size: 16px; line-height: 2.1; color: var(--text-dark); margin-bottom: 26px; letter-spacing: 1px; }
.btn-line { display: inline-flex; align-items: center; gap: 10px; padding: 18px 44px; background: var(--line-green); color: #fff; font-weight: 500; font-size: 15px; letter-spacing: 2px; text-decoration: none; border-radius: 50px; box-shadow: 0 10px 30px rgba(6,199,85,0.32); transition: all 0.3s ease; }
.btn-line:hover { background: var(--line-green-d); transform: translateY(-2px); }
.btn-line .ico { width: 22px; height: 22px; display: inline-flex; }
.btn-line .ico svg { width: 100%; height: 100%; fill: #fff; }
.back-link { display: block; text-align: center; margin-top: 26px; font-size: 13px; letter-spacing: 1px; color: var(--text-light); text-decoration: none; }
.back-link:hover { color: var(--ink); }

/* FOOTER */
.footer { padding: 48px 24px; background: var(--ink); text-align: center; }
.footer-brand { font-family: 'Cormorant Garamond', serif; font-weight: 400; font-size: 20px; letter-spacing: 8px; color: #fff; margin-bottom: 6px; }
.footer-sub { font-size: 10px; letter-spacing: 3px; color: rgba(255,255,255,0.4); margin-bottom: 20px; }
.footer-nap { font-size: 11px; line-height: 2.1; color: rgba(255,255,255,0.55); letter-spacing: 0.5px; }
.footer-nap a { color: rgba(255,255,255,0.55); text-decoration: none; }
.footer-nap a:hover { color: #fff; }

/* FLOATING CTA */
.floating-cta { position: fixed; bottom: 24px; right: 24px; z-index: 99; animation: pulse 2.5s ease infinite; }
.floating-cta a { display: flex; align-items: center; gap: 8px; padding: 15px 28px; background: var(--line-green); color: #fff; font-weight: 500; font-size: 13px; letter-spacing: 1px; text-decoration: none; border-radius: 50px; box-shadow: 0 8px 28px rgba(6,199,85,0.45); transition: all 0.3s; }
.floating-cta a:hover { background: var(--line-green-d); transform: scale(1.05); }
.floating-cta .ico { width: 20px; height: 20px; display: inline-flex; }
.floating-cta .ico svg { width: 100%; height: 100%; fill: #fff; }

@media (max-width: 767px) {
  .art-head { padding: 104px 20px 40px; }
  .art { padding: 44px 20px 16px; }
  .art .lead { font-size: 15px; }
  .art p, .art li { font-size: 14px; }
  .related { padding: 0 20px; }
  .art th, .art td { padding: 12px 8px; font-size: 13px; }
  .floating-cta a { padding: 13px 22px; font-size: 12px; }
}

/* ===== 著者（施術者）プロフィール ===== */
.author { max-width: 720px; margin: 56px auto 0; padding: 0 24px; }
.author-box { display: flex; gap: 20px; padding: 24px; background: var(--beige-light); border-radius: 4px; align-items: flex-start; }
.author-photo { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.author-body { flex: 1; }
.author-label { font-family: 'Cormorant Garamond', serif; font-size: 11px; letter-spacing: 3px; color: var(--accent-text); margin-bottom: 6px; }
.author-name { font-family: 'Noto Serif JP', serif; font-weight: 500; font-size: 17px; letter-spacing: 1px; color: var(--text-dark); }
.author-role { font-size: 12px; letter-spacing: 1px; color: var(--text-light); margin-top: 4px; }
.author-bio { font-size: 13px; line-height: 2; color: var(--text-medium); margin-top: 12px; }
.author-facts { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.author-facts span { font-size: 11px; letter-spacing: 0.5px; color: var(--text-dark); background: #fff; border: 1px solid var(--line); border-radius: 2px; padding: 4px 10px; }
@media (max-width: 767px) {
  .author { padding: 0 20px; }
  .author-box { flex-direction: column; gap: 14px; padding: 20px; }
  .author-photo { width: 84px; height: 84px; }
}

/* 記事内の図解（SVG）。スマホでは文字が潰れるので横スクロールにする */
.art figure svg.fig-svg { width: 100%; height: auto; display: block; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
@media (max-width: 767px) {
  .art figure:has(svg.fig-svg) { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .art figure svg.fig-svg { min-width: 660px; }
  .art figure:has(svg.fig-svg) figcaption::after { content: '　（図は横にスクロールできます）'; color: var(--accent-text); }
}