:root { --bg: #fbf7f0; --surface: #fff; --text: #3d3631; --muted: #7d736a; --line: #eee5d8; --accent: #d8684e; color-scheme: light; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif; line-height: 1.85; }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.top { position: sticky; top: 0; z-index: 5; background: rgba(251, 247, 240, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 10px; height: 54px; max-width: 1040px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; color: var(--text); text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 8px; }
header.top nav { margin-left: auto; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 6px 14px; border-radius: 999px; font-weight: 700; font-size: 13px; text-decoration: none; border: 1.5px solid var(--accent); white-space: nowrap; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.big { padding: 13px 26px; font-size: 17px; }
.crumbs { font-size: 13px; color: var(--muted); margin: 14px 0 0; }
.crumbs a { color: var(--muted); }
.hero { text-align: center; padding: 28px 0 12px; }
.hero-ic { font-size: 56px; line-height: 1; }
.hero h1 { font-size: clamp(26px, 6vw, 38px); line-height: 1.35; margin: 10px 0 12px; }
.lead { font-size: 16px; text-align: left; margin: 0 0 20px; }
.note { color: var(--muted); font-size: 13px; }
section { margin: 28px 0; }
h2 { font-size: 21px; margin: 0 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--line); }
ul, ol { padding-left: 1.3em; }
li { margin: 6px 0; }
ol.steps { counter-reset: s; list-style: none; padding: 0; }
ol.steps li { counter-increment: s; position: relative; padding: 10px 12px 10px 48px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
ol.steps li::before { content: counter(s); position: absolute; left: 12px; top: 10px; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; text-align: center; line-height: 26px; font-size: 14px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px; margin-bottom: 10px; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 8px 0 0; }
.final { text-align: center; background: linear-gradient(135deg, #fff1e8 0%, #ffe9d6 100%); border-radius: 24px; padding: 32px 18px; margin: 32px 0; }
.final h2 { border: none; }
.rels { display: grid; gap: 10px; }
@media (min-width: 640px) { .rels { grid-template-columns: repeat(3, 1fr); } }
.rel { display: flex; align-items: center; gap: 8px; padding: 12px 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px; line-height: 1.4; }
.rel span { font-size: 22px; }
.article-h1 { font-size: clamp(24px, 5.6vw, 32px); line-height: 1.4; margin: 16px 0 4px; }
.article .lead { font-size: 16px; }
.article p { margin: 0 0 12px; }
footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 13px; }
footer a { color: var(--muted); margin-right: 12px; }