/* tsumilab.com（つみたての出口）— ラボ/実験レポート型の骨格を継承 / 2026-09-17 改訂
   フォント: Sawarabi Gothic（本文）× Kaisei HarunoUmi 700（見出し）＝typography-jp §7.2 #22
   配色: color-system-rules §7.3 ファンド #11 (V173)
   幅: 1100px ／ 角丸は原則0（2pxまで）／影なし・罫線で区切る */
:root{
  --bg:#FBFEFD; --surface:#EFF8F5; --text:#1C2A25; --muted:#697974; --border:#7C948C;
  --line:rgba(124,148,140,.45); --accent:#00856C; --link:#008B70; --ink:#0F1A16;
  --grid:rgba(0,133,108,.09);
  --sans:"Sawarabi Gothic","Hiragino Sans","Yu Gothic",sans-serif;
  --serif:"Kaisei HarunoUmi","Hiragino Mincho ProN","Yu Mincho",serif;
  --w:1100px;
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#09100E; --surface:#111B17; --text:#E0EBE7; --muted:#9FB3AB; --border:#5E7A70; --line:rgba(94,122,112,.55); --accent:#2FA88E; --link:#3FB79C; --ink:#F2F7F5; --grid:rgba(47,168,142,.12); }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.95;letter-spacing:.01em}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.45;color:var(--ink);margin:0}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:8px 12px}
.skip:focus{left:8px;top:8px;z-index:99}
.sec-label{font-size:12px;letter-spacing:.22em;color:var(--accent);margin:0 0 6px;font-weight:700}
.sec-lead{color:var(--muted);margin:8px 0 0;max-width:720px}
.sec-head{margin:0 0 20px}
.sec-head h1,.sec-head h2{font-size:30px}
.chip{display:inline-block;border:1px solid var(--accent);color:var(--accent);font-size:12px;line-height:1;padding:5px 8px;letter-spacing:.06em}

/* masthead */
.mast{border-bottom:1px solid var(--line);position:relative}
.mast::after{content:"";display:block;height:3px;background:var(--accent);max-width:var(--w);margin:0 auto}
.mast-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;flex-wrap:wrap}
.brand{text-decoration:none;color:var(--ink);display:flex;flex-direction:column;line-height:1.2}
.brand-ja{font-family:var(--serif);font-size:26px;font-weight:700;letter-spacing:.04em}
.brand-en{font-size:11px;letter-spacing:.18em;color:var(--muted);margin-top:4px}
.gnav{display:flex;gap:22px;flex-wrap:wrap}
.gnav a{text-decoration:none;color:var(--text);font-size:14px;letter-spacing:.04em;border-bottom:2px solid transparent;padding-bottom:2px}
.gnav a:hover{border-bottom-color:var(--accent);color:var(--text)}
.menu-btn{display:none;background:none;border:1px solid var(--border);color:var(--text);font:inherit;font-size:13px;padding:6px 12px;cursor:pointer}
@media (max-width:770px){
  .menu-btn{display:inline-block}
  .gnav{display:none;width:100%;flex-direction:column;gap:0;border-top:1px solid var(--line);padding-top:6px}
  .gnav.is-open{display:flex}
  .gnav a{padding:10px 0;border-bottom:1px solid var(--line)}
  .brand-ja{font-size:22px}
}

/* hero */
.hero-top{background-color:var(--surface);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;padding:56px 20px}
.hero-txt h1{font-size:40px;letter-spacing:.02em}
.hero-lead{margin:18px 0 0;max-width:520px}
.hero-facts{list-style:none;margin:26px 0 0;padding:0;display:flex;gap:28px;flex-wrap:wrap}
.hero-facts li{display:flex;flex-direction:column;border-left:2px solid var(--accent);padding-left:12px;line-height:1.3}
.hero-facts b{font-family:var(--serif);font-size:32px;color:var(--accent)}
.hero-facts span{font-size:13px;color:var(--muted)}
.hero-fig{margin:0;border:1px solid var(--border);padding:8px;background:var(--bg)}
.hero-fig img{aspect-ratio:16/9;object-fit:cover;width:100%}
@media (max-width:860px){.hero-in{grid-template-columns:1fr;gap:26px;padding:34px 20px}.hero-txt h1{font-size:30px}}

/* reports grid */
.reports{padding:44px 20px 10px}
.catfilter{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 22px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.catfilter button{font:inherit;font-size:13px;background:none;border:1px solid var(--border);color:var(--text);padding:6px 14px;cursor:pointer;letter-spacing:.04em}
.catfilter button.is-on{background:var(--accent);border-color:var(--accent);color:#fff}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px 22px}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid{grid-template-columns:1fr}}
.card{border:1px solid var(--line);background:var(--bg);display:flex}
.card.is-hidden{display:none}
.card a{text-decoration:none;color:inherit;display:flex;flex-direction:column;width:100%}
.card-fig{margin:0;border-bottom:1px solid var(--line)}
.card-fig img{aspect-ratio:16/9;object-fit:cover;width:100%}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-top{margin:0;display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.rno{font-size:11px;letter-spacing:.16em;color:var(--accent);font-weight:700}
.card h3{font-size:17px;line-height:1.5}
.card a:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.card a:hover{outline:1px solid var(--accent);outline-offset:-1px}
.card-ex{margin:0;font-size:13.5px;color:var(--muted);line-height:1.75}
.card-meta{margin:auto 0 0;font-size:12px;color:var(--muted);letter-spacing:.04em;padding-top:8px;border-top:1px dashed var(--line)}

/* calculator */
.calc{margin:48px 0 0;border:1px solid var(--border);background-color:var(--surface);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;padding:28px 26px}
.calc-head h2{font-size:26px}
.calc-form{display:grid;grid-template-columns:repeat(3,1fr) auto;gap:14px;align-items:end;margin:22px 0 0}
.calc-form label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:6px}
.calc-form input{font:inherit;font-size:18px;padding:8px 10px;border:1px solid var(--border);background:var(--bg);color:var(--text);width:100%}
.calc-form button,.cform button{font:inherit;background:var(--accent);color:#fff;border:0;padding:12px 22px;cursor:pointer;letter-spacing:.06em}
.calc-form button:hover,.cform button:hover{background:var(--ink)}
@media (max-width:770px){.calc-form{grid-template-columns:1fr 1fr}.calc-form button{grid-column:1/-1}.calc{padding:22px 16px}}
.calc-out{margin:22px 0 0}
.calc-out dl{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0 0 16px}
.calc-out dl div{border:1px solid var(--line);background:var(--bg);padding:12px 14px}
.calc-out dt{font-size:12px;color:var(--muted);letter-spacing:.08em}
.calc-out dd{margin:4px 0 0;font-family:var(--serif);font-size:26px;color:var(--accent)}
.calc-out dd.neg{color:#B23A3A}
@media (max-width:560px){.calc-out dl{grid-template-columns:1fr}}
.calc-note{font-size:13px;color:var(--muted);margin:12px 0 0;line-height:1.8}

/* policy */
.policy{padding:52px 20px 60px}
.policy h2{font-size:26px}
.policy-list{margin:16px 0 0;padding:0 0 0 1.4em}
.policy-list li{margin:0 0 10px}

/* article */
.article-wrap{padding:30px 20px 60px}
.crumb{font-size:13px;color:var(--muted);margin:0 0 14px}
.crumb a{color:var(--muted)}
.report-no{font-size:12px;letter-spacing:.22em;color:var(--accent);font-weight:700;margin:0 0 8px}
.report-head h1{font-size:32px;letter-spacing:.01em;max-width:900px}
.pr-note{margin:14px 0 0;font-size:16px;color:var(--text);border-left:3px solid var(--accent);padding-left:10px}
.report-meta{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;font-size:13.5px;color:var(--muted);margin:14px 0 0;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.orig{width:100%;font-size:12.5px}
.hero{margin:22px 0 0;border:1px solid var(--line)}
.hero img{aspect-ratio:16/9;object-fit:cover;width:100%}
.report-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:44px;margin:34px 0 0}
@media (max-width:960px){.report-grid{grid-template-columns:minmax(0,1fr);gap:26px}}
.report-body{max-width:100%;min-width:0;font-size:16.5px}
.report-body p{margin:0 0 1.35em}
.report-body .lead{font-size:17.5px;border:1px solid var(--line);background:var(--surface);padding:16px 18px}
.report-body h2{font-size:24px;margin:2.2em 0 .9em;padding:0 0 .35em;border-bottom:1px solid var(--line);position:relative}
.report-body h2::before{content:"";position:absolute;left:0;bottom:-1px;width:56px;height:3px;background:var(--accent)}
.report-body h3{font-size:19px;margin:1.8em 0 .7em;padding-left:12px;border-left:3px solid var(--accent)}
.report-body ul,.report-body ol{margin:0 0 1.4em;padding-left:1.5em}
.report-body .tbl{max-width:100%}
.report-body li{margin:0 0 .45em}
.report-body blockquote{margin:0 0 1.5em;padding:12px 16px;border-left:3px solid var(--border);background:var(--surface);color:var(--text)}
.report-body blockquote p{margin:0}
.report-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:var(--surface);padding:1px 5px}
.report-body .note{font-size:14px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px;margin-top:2.5em}
.tbl{overflow-x:auto;margin:0 0 1.6em;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:420px}
th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
thead th{background:var(--surface);font-weight:700;letter-spacing:.04em}
tbody th{background:var(--surface);font-weight:700;width:32%}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}
.ad-banner{display:inline-block;margin:6px 0 1.6em;border:1px solid var(--line);padding:6px;background:var(--bg)}
.ad-banner img{display:block}
.author-box{margin:3em 0 0;border:1px solid var(--border);padding:18px 20px;background:var(--surface)}
.author-name{font-family:var(--serif);font-size:22px;margin:0 0 6px}
.author-box p:last-child{margin:0;font-size:15px}
.report-side{position:sticky;top:20px;align-self:start}
.toc{border:1px solid var(--line);padding:16px 18px;font-size:14px}
.toc ol{margin:0;padding-left:1.4em}
.toc li{margin:0 0 6px}
.toc a{text-decoration:none;color:var(--text)}
.toc a:hover{text-decoration:underline}
.side-tool{margin:16px 0 0;border:1px solid var(--accent);padding:14px 18px;font-size:14px}
.side-tool p{margin:0}
@media (max-width:960px){.report-side{position:static}}
.related{margin:56px 0 0;padding-top:30px;border-top:1px solid var(--line)}
.related h2{font-size:24px;margin:0 0 18px}

/* static pages & form */
.static{padding:30px 0 40px}
.static .report-head{margin:0 0 22px}
.static h2{font-size:22px;margin:2em 0 .8em;padding:0 0 .3em;border-bottom:1px solid var(--line)}
.static p{margin:0 0 1.3em}
.static .small{font-size:13px;color:var(--muted)}
.cform{display:flex;flex-direction:column;gap:18px;margin:26px 0 0;border:1px solid var(--line);padding:24px 22px;background:var(--surface)}
.cform label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--text)}
.cform input[type=text],.cform input[type=email],.cform textarea{font:inherit;padding:10px 12px;border:1px solid var(--border);background:var(--bg);color:var(--text);width:100%}
.cform .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.cform .agree{flex-direction:row;align-items:center;gap:8px}
.cform button{align-self:flex-start}

/* footer */
.foot{margin:60px 0 0;border-top:1px solid var(--line);background:var(--surface)}
.foot-in{display:flex;justify-content:space-between;gap:30px;padding:34px 20px 20px;flex-wrap:wrap}
.foot-name{font-family:var(--serif);font-size:22px;margin:0 0 6px;color:var(--ink)}
.foot-note{margin:0;max-width:520px;font-size:13.5px;color:var(--muted)}
.foot-nav{display:flex;flex-direction:column;gap:8px;font-size:14px}
.foot-nav a{text-decoration:none;color:var(--text)}
.foot-nav a:hover{text-decoration:underline}
.copy{text-align:center;font-size:12px;color:var(--muted);margin:0;padding:12px 20px 22px;letter-spacing:.08em}

/* 追加 2026-09-17: カテゴリ0件の明示・シミュレータの表 */
.grid-empty{border:1px dashed var(--border);color:var(--muted);padding:18px 16px;margin:18px 0 0;font-size:14px}
.calc-out .tbl{margin-top:4px}
.calc-out table td.neg{color:#B23A3A}
.calc-out dd{font-size:23px;line-height:1.35;word-break:break-all}
.report-body blockquote{margin:20px 0;padding:14px 18px;border-left:3px solid var(--accent);background:var(--surface);font-family:var(--serif)}
.report-body blockquote p{margin:0}
.report-body ol{padding-left:1.3em}
.report-body ol li{margin:6px 0}