/* 全ページ共通：藤色と銀鼠、明朝の見出し */
:root{--bg:#efeef4;--panel:#fff;--ink:#23202b;--sub:#625e70;--fuji:#6d5a9c;--fuji-deep:#54437f;--fuji-pale:#e6e0f2;--gin:#a9a8b3;--line:#d6d3e0;--enji:#9b3b4a;--enji-pale:#f6e7ea;--mincho:'Shippori Mincho',serif}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Noto Sans JP',sans-serif;line-height:1.8;font-variant-numeric:tabular-nums}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:var(--fuji-deep)}
:focus-visible{outline:3px solid var(--fuji);outline-offset:3px}
h1,h2,h3,h4,p{margin-top:0}
.skip{position:absolute;left:16px;top:-60px;background:var(--panel);padding:8px 14px;border-radius:6px}
.skip:focus{top:10px}

.site{display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding:14px 36px;background:var(--panel);border-bottom:1px solid var(--line)}
.logo{font-family:var(--mincho);font-weight:700;font-size:19px;letter-spacing:.08em;color:var(--ink);text-decoration:none}
.site nav{display:flex;gap:4px;flex-wrap:wrap}
.site nav a{padding:6px 14px;border-radius:999px;font-size:14px;font-weight:500;color:var(--sub);text-decoration:none}
.site nav a:hover{color:var(--fuji-deep)}
.site nav a[aria-current=page]{background:var(--fuji-pale);color:var(--fuji-deep)}

.page-head{padding:34px 36px 20px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.page-head h1{margin:0;font-family:var(--mincho);font-weight:700;font-size:clamp(24px,3vw,36px);line-height:1.5;letter-spacing:.02em}
.page-head p{margin:6px 0 0;color:var(--sub);font-size:14px;max-width:38em}

.facts{max-width:1120px;margin:0 auto;padding:0 36px 56px;font-size:13px}
.facts summary{cursor:pointer;font-weight:700;padding:10px 0}
.facts ul{margin:8px 0 0;padding-left:1.4em}
.facts li{margin-bottom:8px}

/* 相関図 */
.modes{display:flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:4px}
.modes button{padding:8px 18px;border-radius:999px;font-size:14px;font-weight:500;color:var(--sub);white-space:nowrap}
.modes button[aria-pressed=true]{background:var(--fuji);color:#fff}
.modes button[data-mode=pain][aria-pressed=true]{background:var(--enji)}
.stage{display:grid;grid-template-columns:minmax(0,1fr) 380px;margin:0 36px 40px;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stage>*{min-width:0}
.scroll{overflow-x:auto}
.map{position:relative;width:100%;min-width:900px;aspect-ratio:1000/640;background:radial-gradient(circle at 66% 47%,#f4f0fb 0,#fff 46%)}
.map svg{position:absolute;inset:0;width:100%;height:100%}
.edge path{fill:none;stroke-width:1.8}
.edge.money path{stroke:var(--fuji)}
.edge.lead path{stroke:var(--gin);stroke-dasharray:6 5}
.edge text{font-size:13px;font-family:'Noto Sans JP',sans-serif;paint-order:stroke;stroke:#fff;stroke-width:6px;stroke-linejoin:round}
.edge.money text{fill:var(--fuji)}
.edge.lead text{fill:#5e5c6b}
.edge.dim{opacity:.13}
.edge.hot path{stroke-width:3}
.node{position:absolute;transform:translate(-50%,-50%);width:15.5%;min-height:10.5%;padding:8px 6px;background:#fff;border:1.5px solid var(--line);border-radius:10px;text-align:center;transition:border-color .15s,box-shadow .15s}
.node strong{display:block;font-size:14px;font-weight:700;line-height:1.4}
.node small{display:block;font-size:11px;color:var(--sub);line-height:1.5}
.node:hover{border-color:var(--fuji)}
.node.selected{border-color:var(--fuji);box-shadow:0 0 0 5px var(--fuji-pale)}
.node.center{background:var(--ink);border-color:var(--ink)}
.node.center strong{color:#fff}
.node.center small{color:#cfcbe0}
.node.us{border-style:double;border-width:4px;border-color:var(--fuji)}
.badge{display:none;position:absolute;top:-11px;right:-9px;background:var(--enji);color:#fff;border-radius:999px;font-size:11px;font-weight:700;padding:1px 8px;line-height:1.7}
.map[data-mode=pain] .badge{display:block}
.legend{display:flex;gap:22px;flex-wrap:wrap;padding:12px 20px;border-top:1px solid var(--line);font-size:12px;color:var(--sub)}
.legend span{display:flex;align-items:center;gap:8px}
.legend i{width:26px;border-top:2px solid var(--fuji)}
.legend i.d{border-top:2px dashed var(--gin)}
.side{position:relative;border-left:1px solid var(--line)}
/* 図の高さに合わせ、解説だけを内側でスクロールさせる */
#panel{position:absolute;inset:0;padding:26px 26px 30px;overflow-y:auto}
#panel h2{margin:0;font-family:var(--mincho);font-size:24px;line-height:1.5}
.sub{margin:0 0 14px;font-size:13px;color:var(--sub)}
.role{margin:0 0 16px;font-size:15px}
.earn{background:var(--fuji-pale);border-radius:8px;padding:12px 14px;margin-bottom:18px}
.earn h3,.pain-list h3{margin:0 0 4px;font-size:13px;font-weight:700}
.earn p{margin:0;font-size:14px}
.pain-list{margin-bottom:14px}
.pain-list ul{margin:0;padding:0;list-style:none}
.pain-list li{font-size:14px;padding:9px 0 9px 14px;border-left:3px solid var(--ink);margin-bottom:6px;background:#faf9fc}
.pain-list.biz li{border-left-color:var(--enji);background:var(--enji-pale)}
.pain-list .none{font-size:13px;color:var(--sub);margin:0}
.links h3{margin:18px 0 6px;font-size:13px}
.links button{display:block;width:100%;text-align:left;font-size:13px;padding:7px 0;border-bottom:1px solid var(--line);color:var(--fuji-deep)}
.links button:hover{text-decoration:underline}
.hint{display:none;margin:0;padding:10px 20px 0;font-size:12px;color:var(--sub)}
.next{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:0 36px 44px}
.next a{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;text-decoration:none;color:var(--ink)}
.next a:hover{border-color:var(--fuji)}
.next strong{display:block;font-family:var(--mincho);font-size:18px}
.next span{font-size:13px;color:var(--sub)}

/* 見積書 */
.sheet-wrap{max-width:980px;margin:0 auto;padding:8px 24px 48px}
.sheet{position:relative;background:var(--panel);border:2px solid var(--fuji);padding:36px 40px 32px}
.sheet-title{margin:0;text-align:center;font-family:var(--mincho);font-size:30px;font-weight:700;letter-spacing:.5em;text-indent:.5em;color:var(--fuji-deep)}
.meta{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end;margin:28px 0 24px}
.to{font-size:20px;font-weight:700;border-bottom:1px solid var(--ink);padding:0 48px 4px 0;display:inline-block}
.subject{margin:10px 0 0;font-size:14px;color:var(--sub)}
.issuer{margin:0;font-size:13px;color:var(--sub);text-align:right;line-height:1.7;padding-right:92px}
.stamp{position:absolute;right:40px;top:112px;width:74px;height:74px;border:3px solid var(--enji);border-radius:50%;color:var(--enji);display:grid;place-items:center;font-weight:700;font-size:15px;line-height:1.25;text-align:center;transform:rotate(-9deg);opacity:.85}
.total{display:flex;align-items:baseline;gap:20px;border:2px solid var(--fuji);background:var(--fuji-pale);padding:14px 22px;margin:0 0 8px}
.total dt{font-weight:700;font-size:15px}
.total dd{margin:0 0 0 auto;white-space:nowrap;font-size:34px;font-weight:700;letter-spacing:.02em}
.total-note{font-size:13px;color:var(--sub);margin:0 0 24px}
.switch{display:flex;margin-bottom:18px;border:1px solid var(--fuji);width:max-content;max-width:100%}
.switch button{padding:9px 18px;font-size:14px;font-weight:500;color:var(--fuji-deep)}
.switch button[aria-pressed=true]{background:var(--fuji);color:#fff}
.rows{border-top:2px solid var(--fuji)}
.rows-head,.row>button{display:grid;grid-template-columns:minmax(0,1.6fr) 130px minmax(0,1fr) 28px;gap:16px;align-items:center;width:100%;text-align:left;padding:13px 10px}
.rows-head{font-size:12px;font-weight:700;color:var(--fuji-deep);background:var(--fuji-pale);border-bottom:1px solid var(--fuji)}
.rows-head span:nth-child(2),.amount{text-align:right}
.row{border-bottom:1px solid var(--line)}
.row>button:hover{background:#faf9fc}
.item strong{display:block;font-size:16px;font-weight:700}
.item small{display:block;font-size:12px;color:var(--sub)}
.amount{font-size:18px;font-weight:700}
.payee{font-size:13px}
.payee em{font-style:normal;display:block;color:var(--enji);font-size:12px;font-weight:700}
.mark{font-size:20px;color:var(--fuji);text-align:center;transition:transform .15s}
.row.open .mark{transform:rotate(45deg)}
.row-body{display:none;padding:6px 10px 22px;gap:14px}
.row.open .row-body{display:grid}
.how{margin:0;font-size:15px;max-width:44em}
.pains{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pain{border-left:4px solid var(--ink);background:#faf9fc;padding:12px 16px}
.pain.biz{border-left-color:var(--enji);background:var(--enji-pale)}
.pain h4{margin:0 0 4px;font-size:13px;font-weight:700}
.pain p{margin:0;font-size:14px}
.off{margin-top:26px;border:1px dashed var(--ink)}
.off .row{border-bottom:0}
.off-label{margin:0;padding:8px 10px;font-size:12px;font-weight:700;border-bottom:1px dashed var(--ink)}
.settle{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.settle section{border:1px solid var(--line);border-radius:12px;padding:18px 20px;background:var(--panel)}
.settle h2{margin:0 0 10px;font-family:var(--mincho);font-size:18px}
.settle dl{margin:0;display:grid;grid-template-columns:1fr auto;gap:6px 16px;font-size:14px}
.settle dd{margin:0;text-align:right;font-weight:700}
.settle .sum{border-top:1px solid var(--ink);padding-top:6px;font-size:17px}
.settle .minus{color:var(--enji)}
.note{font-size:12px;color:var(--sub);margin:22px 0 0}

/* ふたつの視点 */
.duo{max-width:1120px;margin:0 auto;padding:54px 36px 40px;display:grid;grid-template-columns:1fr 1fr}
.duo h1{margin:0;font-family:var(--mincho);font-weight:700;font-size:clamp(26px,3.4vw,44px);line-height:1.55}
.duo .l{padding-right:36px;border-right:6px solid var(--fuji)}
.duo .r{padding-left:36px;color:var(--enji)}
.duo p{grid-column:1/-1;margin:28px 0 0;max-width:38em;color:var(--sub);font-size:15px}
.cols{position:sticky;top:0;z-index:2;background:var(--bg);border-bottom:1px solid var(--line)}
.cols div{max-width:1120px;margin:0 auto;padding:12px 36px;display:grid;grid-template-columns:1fr 150px 1fr;gap:28px;font-weight:700;font-size:15px}
.cols span:last-child{color:var(--enji)}
.cols span:nth-child(2){text-align:center;color:var(--sub);font-weight:400;font-size:13px}
.view{display:none}
.timeline{max-width:1120px;margin:0 auto;padding:0 36px 64px}
.moment{display:grid;grid-template-columns:1fr 150px 1fr;gap:28px;align-items:stretch;padding:34px 0 0}
.spine{position:relative;text-align:center}
.spine:before{content:'';position:absolute;left:50%;top:0;bottom:-34px;width:2px;margin-left:-1px;background:repeating-linear-gradient(var(--fuji) 0 9px,transparent 9px 14px)}
.moment:last-of-type .spine:before{bottom:0}
.knot{position:relative;display:inline-block;background:var(--panel);border:2px solid var(--fuji);border-radius:10px;padding:10px 8px;width:100%}
.knot strong{display:block;font-family:var(--mincho);font-size:19px;line-height:1.4}
.knot small{display:block;font-size:12px;color:var(--sub)}
.knot em{display:block;font-style:normal;font-size:12px;margin-top:6px;color:var(--fuji-deep);text-decoration:underline;text-underline-offset:3px}
.knot[aria-expanded=true]{background:var(--fuji-pale)}
.card{background:var(--panel);border-top:5px solid var(--ink);border-radius:0 0 10px 10px;padding:20px 22px 22px}
.card.biz{border-top-color:var(--enji)}
.card h3{margin:0 0 8px;font-family:var(--mincho);font-size:20px;line-height:1.55}
.card p{margin:0;font-size:15px}
.card .trouble{margin-top:14px;padding:12px 14px;background:#faf9fc;font-size:14px}
.card.biz .trouble{background:var(--enji-pale)}
.trouble b{display:block;font-size:12px;margin-bottom:2px}
.money-note{grid-column:1/-1;display:none;background:var(--fuji-pale);border-left:6px solid var(--fuji);padding:14px 20px;font-size:15px}
.money-note.open{display:block}
.money-note b{display:block;font-size:12px}
.end{margin:56px 0 0;padding-top:26px;border-top:1px solid var(--line);font-size:13px;color:var(--sub);max-width:44em}

/* 読む */
.read{display:grid;grid-template-columns:220px minmax(0,42em);gap:56px;max-width:1040px;margin:0 auto;padding:48px 36px 72px}
.toc{position:sticky;top:24px;align-self:start;font-size:13px}
.toc p{margin:0 0 8px;font-weight:700}
.toc ol{margin:0;padding:0;list-style:none;border-left:2px solid var(--line)}
.toc a{display:block;padding:5px 0 5px 14px;color:var(--sub);text-decoration:none;line-height:1.6}
.toc a:hover{color:var(--fuji-deep)}
.prose h1{font-family:var(--mincho);font-size:clamp(28px,3.6vw,42px);line-height:1.5;margin:0 0 18px}
.prose .lede{font-size:17px;color:var(--sub);margin-bottom:40px}
.prose h2{font-family:var(--mincho);font-size:25px;line-height:1.55;margin:52px 0 16px;padding-top:20px;border-top:1px solid var(--line);scroll-margin-top:20px}
.prose h3{font-size:16px;margin:28px 0 8px}
.prose p{font-size:16px;line-height:2;margin:0 0 18px}
.prose ul{padding-left:1.3em;margin:0 0 18px}
.prose li{font-size:16px;line-height:1.9;margin-bottom:8px}
.prose .src{font-size:13px;color:var(--sub)}
.prose table{width:100%;border-collapse:collapse;margin:8px 0 10px;font-size:14px;background:var(--panel)}
.prose th,.prose td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:right}
.prose th:first-child,.prose td:first-child{text-align:left}
.prose thead th{background:var(--fuji-pale);color:var(--fuji-deep);font-size:12px}
.table-scroll{overflow-x:auto}
.aside{background:var(--panel);border-left:5px solid var(--fuji);padding:16px 20px;margin:0 0 22px}
.aside p{font-size:15px;margin:0}
.aside p+p{margin-top:8px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 22px}
.two div{background:var(--panel);border-top:5px solid var(--ink);padding:14px 18px}
.two div:last-child{border-top-color:var(--enji)}
.two h4{margin:0 0 4px;font-size:13px}
.two p{font-size:14px;line-height:1.85;margin:0}

/* ナレッジ */
.know{display:grid;grid-template-columns:230px minmax(0,1fr);gap:40px;max-width:1240px;margin:0 auto;padding:36px 36px 64px}
.lesson-list{position:sticky;top:24px;align-self:start;display:grid;gap:8px}
.lesson-list a{position:relative;display:block;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;line-height:1.5}
.lesson-list a small{display:block;font-size:11px;font-weight:400;color:var(--sub)}
.lesson-list a:hover{border-color:var(--fuji)}
.lesson-list a[aria-current=page]{border-color:var(--fuji);background:var(--fuji-pale);color:var(--fuji-deep)}
.lesson-list .done{position:absolute;right:10px;top:10px;font-size:11px;background:var(--fuji);color:#fff;border-radius:999px;padding:0 7px}
.article{outline:none;min-width:0}
.kicker{margin:0 0 4px;font-size:13px;color:var(--fuji-deep);font-weight:700}
.article h1{font-family:var(--mincho);font-size:clamp(25px,3vw,36px);line-height:1.55;margin:0 0 12px}
.article .lede{font-size:16px;color:var(--sub);max-width:40em;margin-bottom:24px}
.brief{display:flex;gap:18px;align-items:baseline;background:var(--fuji-pale);border-radius:10px;padding:14px 20px;margin-bottom:22px}
.brief strong{font-size:13px;white-space:nowrap;color:var(--fuji-deep)}
.brief p{margin:0;font-size:15px}
.kpanel{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.kmap{position:relative;width:100%;min-width:820px;aspect-ratio:1000/340;background:radial-gradient(circle at 50% 50%,#f4f0fb 0,#fff 55%)}
.kmap svg{position:absolute;inset:0;width:100%;height:100%}
.kmap .node{width:17%;min-height:20%}
.detail{border-top:1px solid var(--line);padding:16px 22px 18px}
.detail h3{margin:0 0 4px;font-family:var(--mincho);font-size:19px}
.detail p{margin:0;font-size:15px;max-width:46em}
.trace{display:flex;gap:18px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-top:14px}
.trace>p{margin:0;font-size:14px;color:var(--sub)}
.trace-start{background:var(--fuji);color:#fff;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:500;white-space:nowrap}
.trace.on{display:block;border-color:var(--fuji);padding:16px 20px}
.trace-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;font-size:13px;font-weight:700;color:var(--fuji-deep)}
.trace-top button{margin-left:8px;padding:5px 14px;border:1px solid var(--line);border-radius:6px;font-size:13px;font-weight:400;color:var(--ink);background:#faf9fc}
.trace-top button:disabled{opacity:.45;cursor:default}
.trace-top button.plain{border:0;background:none;text-decoration:underline;color:var(--sub)}
.trace.on h3{margin:0 0 4px;font-family:var(--mincho);font-size:19px}
.trace.on p{margin:0;font-size:15px;max-width:46em}
.article h2{font-family:var(--mincho);font-size:22px;margin:40px 0 14px}
.points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:start}
.point{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.point[open]{border-color:var(--fuji)}
.point summary{list-style:none;cursor:pointer;padding:18px 18px 14px}
.point summary::-webkit-details-marker{display:none}
.point h3{margin:0 0 8px;font-size:15px;line-height:1.6}
.point summary p{margin:0 0 12px;font-size:14px;color:var(--sub)}
.open-label{font-size:13px;color:var(--fuji-deep);text-decoration:underline;text-underline-offset:3px}
.point[open] .open-label{display:none}
.point-body{padding:16px 18px 18px;border-top:1px solid var(--line);background:#faf9fc}
.point-body p{margin:0 0 12px;font-size:14px;line-height:1.9}
.point-body p:last-child{margin-bottom:0}
.point-body h4{margin:0 0 4px;font-size:12px;color:var(--enji)}
.quiz{display:grid;grid-template-columns:200px 1fr;gap:26px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px;margin-top:36px}
.quiz h2{margin:0 0 6px;font-size:19px}
.quiz>div:first-child p{margin:0;font-size:13px;color:var(--sub)}
.quiz h3{margin:0 0 14px;font-size:15px;font-weight:500;line-height:1.8}
.choices{display:grid;gap:8px}
.choices button{display:flex;gap:14px;align-items:center;text-align:left;padding:11px 14px;border:1px solid var(--line);border-radius:8px;background:#faf9fc;font-size:14px}
.choices button span{font-size:12px;font-weight:700;color:var(--fuji)}
.choices button:hover{border-color:var(--fuji)}
.choices button[aria-pressed=true]{border-color:var(--fuji);background:var(--fuji-pale)}
.feedback{margin-top:14px;padding:14px 16px;border-radius:8px;background:var(--enji-pale);font-size:14px}
.feedback.ok{background:var(--fuji-pale)}
.feedback p{margin:6px 0 0}
.feedback small{display:block;margin-top:8px;color:var(--sub)}
.refs ul{margin:0 0 14px;padding-left:1.3em;font-size:14px}
.refs li{margin-bottom:6px}
.refs .notes{color:var(--sub)}

@media(max-width:1180px){.points{grid-template-columns:1fr}.stage{grid-template-columns:1fr}.side{border-left:0;border-top:1px solid var(--line)}#panel{position:static}}
@media(max-width:940px){.site{padding:12px 16px;gap:10px}.page-head{padding:24px 16px 16px}.stage{margin:0 12px 32px}.hint{display:block}.modes{max-width:100%;flex-wrap:wrap;border-radius:20px}.modes button{padding:8px 12px;font-size:13px}.next{grid-template-columns:1fr;margin:0 12px 36px}.facts{padding:0 16px 48px}.read{grid-template-columns:1fr;gap:24px;padding:32px 18px 56px}.toc{position:static}.know{grid-template-columns:1fr;gap:20px;padding:24px 16px 48px}.lesson-list{position:static;grid-template-columns:1fr 1fr}.brief{display:block}.trace{flex-wrap:wrap}.quiz{grid-template-columns:1fr;gap:14px}}
@media(max-width:820px){.duo{grid-template-columns:1fr;padding:36px 18px 28px}.duo .l{border-right:0;border-bottom:6px solid var(--fuji);padding:0 0 18px}.duo .r{padding:18px 0 0}.cols div{display:none}.view{display:flex;position:sticky;top:0;z-index:2;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 18px;gap:8px}.view button{flex:1;padding:9px;border:1px solid var(--line);border-radius:8px;background:var(--panel);font-size:14px;font-weight:700}.view button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.view button[data-view=biz][aria-pressed=true]{background:var(--enji);border-color:var(--enji)}.timeline{padding:0 18px 56px}.moment{grid-template-columns:1fr;gap:12px;padding-top:26px}.spine{order:-1}.spine:before{display:none}.timeline[data-view=user] .card.biz,.timeline[data-view=biz] .card.user{display:none}.two{grid-template-columns:1fr}}
@media(max-width:720px){.sheet-wrap{padding:0 14px 40px}.sheet{padding:26px 16px}.sheet-title{font-size:24px}.stamp{right:14px;top:74px;width:60px;height:60px;font-size:12px}.meta{grid-template-columns:1fr}.issuer{text-align:left;padding-right:0}.total{flex-wrap:wrap;gap:4px 16px}.total dd{font-size:24px}.rows-head{display:none}.row>button{grid-template-columns:1fr auto 24px;gap:10px}.payee{grid-column:1/-1;grid-row:2}.pains,.settle{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
@media(max-width:480px){.site nav{gap:0}.site nav a{padding:6px 9px;font-size:13px}}