:root{
  --bg:#faf8f4;
  --bg-alt:#f2eee7;
  --ink:#2b2925;
  --ink-soft:#6b665e;
  --line:#e2ddd3;
  --accent:#8a7c5f;
  --accent-ink:#6f6247;
  --up:#c0764a;
  --up-bg:#faf1ea;
  --down:#7a8b6f;
  --down-bg:#f0f3ed;
  --white:#ffffff;
  --radius:14px;
  --maxw:840px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Zen Kaku Gothic New",-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN",sans-serif;
  line-height:1.95;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.mincho{font-family:"Zen Old Mincho",serif;}

/* header */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,244,.85);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.navbar{
  max-width:1080px;margin:0 auto;padding:16px 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{font-family:"Zen Old Mincho",serif;font-size:22px;font-weight:600;letter-spacing:.08em;color:var(--ink);text-decoration:none;}
.logo span{color:var(--accent);}
.nav-links{display:flex;gap:26px;font-size:13px;align-items:center;}
.nav-links a{color:var(--ink-soft);text-decoration:none;transition:color .2s;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.nav-cta{
  background:#06C755;color:#fff;font-weight:700;
  padding:8px 18px;border-radius:999px;
}
.nav-links a.nav-cta:hover{background:#05a847;color:#fff;}
@media(max-width:640px){.nav-links a:not(.nav-cta){display:none;}}

/* breadcrumb */
.breadcrumb{
  max-width:var(--maxw);margin:0 auto;padding:20px 28px 0;
  font-size:12.5px;color:var(--ink-soft);
}
.breadcrumb a{color:var(--ink-soft);text-decoration:none;}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;}
.breadcrumb span{margin:0 6px;color:var(--line);}

/* article */
article{padding:36px 0 72px;}
.eyebrow{
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;font-weight:500;
}
h1{
  font-family:"Zen Old Mincho",serif;
  font-size:clamp(25px,3.6vw,33px);
  font-weight:600;line-height:1.55;letter-spacing:.02em;
  margin-bottom:22px;
}
.article-lead{
  font-size:16px;color:var(--ink-soft);
  border-left:3px solid var(--accent);
  padding-left:18px;margin-bottom:44px;
}
.article-lead strong{color:var(--ink);}
h2{
  font-family:"Zen Old Mincho",serif;
  font-size:22px;font-weight:600;line-height:1.6;letter-spacing:.02em;
  margin:56px 0 20px;
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
h3{font-size:16.5px;font-weight:700;margin:30px 0 10px;}
article p{margin-bottom:18px;}
article ul,article ol{margin:0 0 18px 24px;}
article li{margin-bottom:8px;}
article strong{font-weight:700;}

/* figure (SVG illustration block) */
.figure{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px 14px;margin:28px 0 32px;text-align:center;
}
.figure svg{width:100%;max-width:640px;height:auto;display:block;margin:0 auto;}
.figure figcaption{font-size:12.5px;color:var(--ink-soft);margin-top:10px;}

/* check list box */
.checkbox-list{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;margin:24px 0;list-style:none;margin-left:0;
}
.checkbox-list li{
  padding-left:30px;position:relative;margin-bottom:12px;
}
.checkbox-list li:last-child{margin-bottom:0;}
.checkbox-list li::before{
  content:"✓";position:absolute;left:0;top:0;
  color:var(--accent);font-weight:700;
}

/* before/after table */
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;background:var(--white);border-radius:var(--radius);overflow:hidden;}
th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;line-height:1.7;}
th{background:var(--bg-alt);font-weight:700;white-space:nowrap;}

/* point box */
.point-box{
  background:var(--down-bg);border:1px solid #d3dccc;border-radius:var(--radius);
  padding:22px 26px;margin:24px 0;font-size:15px;
}
.point-box .point-label{
  display:block;font-weight:700;color:var(--down);font-size:13px;
  letter-spacing:.1em;margin-bottom:8px;
}
.note-box{
  background:var(--up-bg);border:1px solid #e8d5c4;border-radius:var(--radius);
  padding:22px 26px;margin:24px 0;font-size:14.5px;color:var(--ink-soft);
}
.note-box .point-label{
  display:block;font-weight:700;color:var(--up);font-size:13px;
  letter-spacing:.1em;margin-bottom:8px;
}

/* FAQ */
.faq-list{list-style:none;margin-left:0;}
.faq-list li{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 26px;margin-bottom:14px;
}
.faq-q{font-weight:700;margin-bottom:8px;display:flex;gap:10px;}
.faq-q::before{content:"Q";color:var(--accent);font-weight:700;flex:0 0 auto;}
.faq-a{color:var(--ink-soft);font-size:14.5px;display:flex;gap:10px;margin-bottom:0;}
.faq-a::before{content:"A";color:var(--up);font-weight:700;flex:0 0 auto;}

/* related links */
.related-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  list-style:none;margin-left:0;
}
@media(max-width:640px){.related-grid{grid-template-columns:1fr;}}
.related-grid li{margin-bottom:0;}
.related-grid a{
  display:block;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 18px;
  color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;
  transition:border-color .2s;line-height:1.6;
}
.related-grid a:hover{border-color:var(--accent);}
.related-grid a span{display:block;font-size:12px;color:var(--accent);margin-bottom:4px;letter-spacing:.06em;}

/* CTA */
.cta-block{
  background:var(--bg-alt);border-radius:var(--radius);
  padding:40px 32px;margin:56px 0 0;text-align:center;
}
.cta-block h2{border:none;margin:0 0 12px;padding:0;font-size:21px;}
.cta-block p{color:var(--ink-soft);font-size:14.5px;max-width:560px;margin:0 auto 24px;}
.btn{
  display:inline-block;text-decoration:none;font-size:15px;font-weight:500;
  padding:15px 34px;border-radius:999px;transition:all .2s;cursor:pointer;
}
.btn-primary{background:#06C755;color:#fff;box-shadow:0 2px 10px rgba(6,199,85,.25);}
.btn-primary:hover{background:#05a847;}
.btn-primary .line-mark{
  display:inline-block;margin-right:8px;font-weight:700;
  background:#fff;color:#06C755;border-radius:6px;
  font-size:11px;padding:1px 6px;vertical-align:1px;
}

/* footer */
footer{border-top:1px solid var(--line);padding:40px 0;background:var(--bg-alt);margin-top:72px;}
.footer-inner{max-width:1080px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
.footer-inner .logo{font-size:18px;}
.footer-inner .copy{font-size:12px;color:var(--ink-soft);}

/* guides hub */
.hub-lead{font-size:16px;color:var(--ink-soft);margin-bottom:40px;max-width:720px;}
.hub-section-title{
  font-family:"Zen Old Mincho",serif;font-size:21px;font-weight:600;
  margin:48px 0 8px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.hub-section-desc{font-size:14px;color:var(--ink-soft);margin-bottom:20px;}