:root {
  --sun: #ffc93c;
  --sun-deep: #e9b52a;
  --sun-pale: #fff6d8;
  --ink: #233059;
  --ink-soft: #5b6585;
  --mint: #22a884;
  --mint-pale: #e3f6ef;
  --shu: #e0482f;
  --mist: #f2f4f8;
  --line: #dfe3ec;
  --white: #ffffff;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-weight: 500;
  font-size: 16.5px;
  line-height: 1.85;
  overflow-wrap: anywhere;
}
a { color: var(--ink); }
button, input, select { font: inherit; color: inherit; }
img { max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 600px; margin: 0 auto; }

/* 先頭のPR表記（全ページ） */
.prbar { margin: 0; padding: 6px 16px; background: var(--sun-pale); color: #6a4b00; font-size: 14px; font-weight: 700; line-height: 1.6; text-align: center; }
.prbar a { color: #6a4b00; }
.pr { display: inline-block; margin-right: 6px; padding: 0 6px; border: 1.5px solid currentColor; border-radius: 4px; font-size: 12px; font-weight: 900; line-height: 1.6; vertical-align: 1px; }

/* ヘッダー（黄色の帯） */
.head { background: var(--sun); }
.head__in { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 58px; flex-wrap: wrap; }
.logo { color: var(--ink); font-weight: 900; font-size: 17px; text-decoration: none; letter-spacing: .03em; }
.head__nav { display: flex; gap: 16px; font-size: 14px; font-weight: 700; }
.head__nav a { text-decoration: none; }
.head__nav a:hover { text-decoration: underline; }

/* トップ */
.home-hero { background: var(--sun); padding: 10px 0 70px; }
.home-hero h1 { margin: 6px 0 8px; font-size: 30px; line-height: 1.45; font-weight: 900; }
.home-hero p { margin: 0; font-size: 15px; max-width: 34em; }
.tool-list { margin: -48px 0 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.tool-link { display: block; background: var(--white); border: 3px solid var(--ink); border-radius: 26px; box-shadow: 0 6px 0 var(--sun-deep); padding: 20px 22px; text-decoration: none; }
.tool-link:hover { transform: translateY(-2px); box-shadow: 0 8px 0 var(--sun-deep); }
.tool-link .tl-tag { display: inline-block; padding: 0 12px; border-radius: 99px; background: var(--ink); color: var(--white); font-size: 13px; font-weight: 700; }
.tool-link h2 { margin: 8px 0 4px; font-size: 22px; line-height: 1.45; font-weight: 900; }
.tool-link p { margin: 0 0 12px; color: var(--ink-soft); font-size: 15px; }
.tool-link .tl-go { display: inline-block; padding: 8px 20px; border-radius: 99px; background: var(--ink); color: var(--white); font-weight: 900; }
.home-hero__note { margin: 18px 0 0; color: var(--ink-soft); font-size: 14px; }
.list { padding: 36px 0 56px; }
.list__h, .more__h { margin: 0 0 16px; font-size: 21px; line-height: 1.4; font-weight: 900; }

/* 記事カード */
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.card { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; background: var(--white); border: 2px solid var(--line); border-radius: 20px; color: var(--ink); text-decoration: none; }
.card:hover { border-color: var(--ink); }
.card__meta { margin: 0; display: flex; gap: 10px; align-items: center; color: var(--ink-soft); font-size: 13px; }
.card__cat { padding: 0 10px; background: var(--mint-pale); color: #157a5f; border-radius: 99px; font-weight: 700; }
.card__title { margin: 0; font-size: 17px; line-height: 1.55; font-weight: 900; }
.card__desc { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.card__more { margin-top: auto; font-size: 14px; font-weight: 900; }

/* 記事 */
.page-bg { background: var(--mist); }
.crumbs { margin: 0; padding: 14px 0; font-size: 13px; color: var(--ink-soft); }
.crumbs span { margin: 0 6px; }
.art { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 26px; align-items: start; padding-bottom: 44px; }
.paper { background: var(--white); border-radius: 24px; padding: 34px 38px; }
.paper--narrow { max-width: 820px; margin: 24px auto 56px; }
.art__cat { margin: 0 0 6px; display: inline-block; padding: 0 12px; border-radius: 99px; background: var(--mint-pale); color: #157a5f; font-size: 13px; font-weight: 700; }
.art__title { margin: 0 0 10px; font-size: 26px; line-height: 1.5; font-weight: 900; }
.art__meta { margin: 0 0 22px; color: var(--ink-soft); font-size: 13px; }
.side { position: sticky; top: 16px; display: flex; flex-direction: column; gap: 16px; }
.toc { background: var(--white); border-radius: 20px; padding: 16px 18px; font-size: 14px; }
.toc__h { margin: 0 0 6px; font-weight: 900; }
.toc ol { margin: 0; padding-left: 1.3em; }
.toc li { margin: 4px 0; line-height: 1.6; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.toc--top { display: none; margin-bottom: 22px; background: var(--mist); }
.side-tool { display: block; padding: 16px 18px; border: 3px solid var(--ink); border-radius: 20px; background: var(--sun); text-decoration: none; box-shadow: 0 5px 0 var(--sun-deep); }
.side-tool b { display: block; font-size: 17px; font-weight: 900; }
.side-tool span { font-size: 14px; }

/* 本文 */
.prose h2 { margin: 44px 0 14px; padding: 0 0 8px; border-bottom: 4px solid var(--sun); font-size: 21px; line-height: 1.5; font-weight: 900; scroll-margin-top: 16px; }
.prose h3 { margin: 30px 0 10px; padding-left: 12px; border-left: 5px solid var(--ink); font-size: 18px; line-height: 1.5; font-weight: 900; }
.prose p { margin: 0 0 16px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 1.4em; }
.prose li { margin: 4px 0; }
.prose strong { background: linear-gradient(transparent 60%, #ffe28a 60%); font-weight: 900; }
.prose .point { margin: 0 0 26px; padding: 18px 20px; border: 3px solid var(--ink); border-radius: 20px; background: var(--sun-pale); }
.prose .point__h { margin: 0 0 8px; font-weight: 900; font-size: 17px; }
.prose .point ul, .prose .point ol { margin-bottom: 0; }
.prose .note { margin: 0 0 16px; padding: 14px 16px; background: var(--mist); border-radius: 16px; font-size: 15px; }
.prose .cite { margin: -6px 0 18px; color: var(--ink-soft); font-size: 13px; line-height: 1.6; }
.prose .cite a { color: var(--ink-soft); }
.prose .calc { margin: 0 0 18px; padding: 14px 16px; background: var(--mint-pale); border-radius: 16px; font-size: 15px; }
.prose .calc p { margin: 0 0 4px; }
.prose .to-tool { display: block; margin: 0 0 22px; padding: 14px 18px; border: 3px solid var(--ink); border-radius: 18px; background: var(--sun); text-decoration: none; font-weight: 900; box-shadow: 0 5px 0 var(--sun-deep); }
.prose .to-tool small { display: block; font-weight: 500; font-size: 14px; }

.tbl { margin: 0 0 18px; overflow-x: auto; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.6; }
.prose th, .prose td { padding: 8px 10px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--mist); }
.prose td.num { text-align: right; white-space: nowrap; }
.prose table.minchin { font-size: 14.5px; }
.prose table.minchin th, .prose table.minchin td { padding: 6px 7px; }
.prose table.minchin thead th { white-space: nowrap; }

.more { padding-bottom: 56px; }

/* 広告枠 */
.ad { margin: 26px 0; }
.ad__label { margin: 0 0 4px; font-size: 12px; color: var(--ink-soft); }
.ad--ph { padding: 22px; border: 2px dashed var(--line); border-radius: 16px; color: var(--ink-soft); font-size: 14px; text-align: center; background: var(--white); }

/* フッター */
.foot { background: var(--ink); color: #dfe4f2; padding: 28px 0; font-size: 13px; }
.foot a { color: #dfe4f2; }
.foot__nav { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 10px; }
.foot__note, .foot__copy { margin: 4px 0 0; }

/* はんこのキャラ */
.hero-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; }
.hero-row h1 { min-width: 0; }
.hero-chara { flex: 0 0 auto; width: 104px; height: auto; margin-bottom: -4px; }
.home-hero .hero-row { max-width: 640px; }
.talk { display: flex; align-items: flex-end; gap: 10px; margin: 0 0 18px; text-align: left; }
.talk img { flex: 0 0 64px; width: 64px; height: auto; }
.talk p { position: relative; flex: 1; min-width: 0; margin: 0 0 14px; padding: 10px 14px; background: var(--sun-pale); border: 2px solid var(--ink); border-radius: 18px; font-weight: 700; font-size: 15px; line-height: 1.7; }
.talk p::before { content: ""; position: absolute; left: -9px; bottom: 14px; width: 14px; height: 14px; background: var(--sun-pale); border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(45deg); }

/* ===== 道具（時給チェッカーなど）===== */
.tool-hero { background: var(--sun); padding: 6px 0 72px; }
.tool-hero h1 { margin: 10px 0 8px; font-size: 30px; line-height: 1.45; font-weight: 900; }
.tool-hero p { margin: 0; font-size: 15px; }
.tool-box { position: relative; margin: -52px 0 0; background: var(--white); border-radius: 28px; box-shadow: 0 6px 0 var(--sun-deep); border: 3px solid var(--ink); padding: 24px 20px 26px; }
.tool .steps { display: flex; gap: 8px; margin: 0 0 18px; padding: 0; list-style: none; }
.tool .steps li { flex: 1; height: 8px; border-radius: 99px; background: var(--mist); }
.tool .steps li.on { background: var(--ink); }
.tool .q { display: none; }
.tool .q.on { display: block; animation: q-in .25s ease-out; }
@keyframes q-in { from { opacity: 0; transform: translateX(14px); } to { opacity: 1; transform: none; } }
.tool .q-num { margin: 0; font-size: 14px; color: var(--ink-soft); font-weight: 700; }
.tool .q h2 { margin: 2px 0 14px; font-size: 23px; line-height: 1.5; font-weight: 900; }
.tool .hint { margin: 8px 0 0; font-size: 14px; color: var(--ink-soft); line-height: 1.7; }
.tool select, .tool input[type=text] { width: 100%; min-width: 0; padding: 14px 16px; border-radius: 16px; border: 2px solid var(--line); background: var(--mist); font-size: 20px; font-weight: 700; }
.tool select:focus, .tool input:focus { outline: 3px solid var(--sun); outline-offset: 1px; border-color: var(--ink); }
.tool .field { margin: 0 0 16px; }
.tool .field label { display: block; margin: 0 0 6px; font-weight: 700; }
.tool .unit { display: flex; align-items: center; gap: 8px; }
.tool .unit span { font-weight: 700; white-space: nowrap; }
.tool .pick { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tool .pick button { padding: 18px 12px; border-radius: 20px; border: 3px solid var(--line); background: var(--white); font-size: 20px; font-weight: 900; cursor: pointer; }
.tool .pick button small { display: block; font-size: 13px; font-weight: 500; color: var(--ink-soft); }
.tool .pick button[aria-pressed=true] { border-color: var(--ink); background: var(--mint-pale); }
.tool .chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 0; }
.tool .chips button { padding: 6px 14px; border-radius: 99px; border: 2px solid var(--line); background: var(--white); font-weight: 700; cursor: pointer; }
.tool .chips button:hover { border-color: var(--ink); }
.tool .nav { display: flex; gap: 10px; margin-top: 22px; }
.tool .nav button { flex: 1; padding: 15px; border-radius: 99px; border: 3px solid var(--ink); font-size: 18px; font-weight: 900; cursor: pointer; }
.tool .next { background: var(--ink); color: var(--white); }
.tool .back { background: var(--white); flex: 0 0 34%; }
.tool .err { margin: 10px 0 0; color: var(--shu); font-weight: 700; }
.tool .never { margin: 16px 0 0; padding: 12px 14px; background: var(--mist); border-radius: 14px; font-size: 14px; line-height: 1.7; }
.tool .result { display: none; text-align: center; }
.tool .result.on { display: block; }
.tool .stamp { width: 168px; height: 168px; margin: 4px auto 10px; border: 7px double var(--shu); border-radius: 50%; color: var(--shu); display: grid; place-items: center; font-size: 34px; font-weight: 900; line-height: 1.15; white-space: pre-line; transform: rotate(-8deg); animation: stamp .35s cubic-bezier(.2, 1.6, .4, 1); }
.tool .stamp.ok { border-color: var(--mint); color: var(--mint); }
@keyframes stamp { from { transform: rotate(-8deg) scale(1.6); opacity: 0; } to { transform: rotate(-8deg) scale(1); opacity: 1; } }
.tool .result h2 { margin: 0 0 18px; font-size: 22px; font-weight: 900; }
.tool .bars { text-align: left; margin: 0 0 18px; }
.tool .bar { margin: 0 0 12px; }
.tool .bar p { display: flex; justify-content: space-between; align-items: flex-end; gap: 10px; margin: 0 0 4px; font-weight: 700; }
.tool .bar p span { min-width: 0; line-height: 1.5; }
.tool .bar small { display: block; font-size: 12px; color: var(--ink-soft); font-weight: 500; }
.tool .bar b { font-size: 22px; white-space: nowrap; }
.tool .track { height: 16px; border-radius: 99px; background: var(--mist); overflow: hidden; }
.tool .track i { display: block; height: 100%; border-radius: 99px; background: var(--ink); }
.tool .bar.min .track i { background: var(--sun); }
.tool .diff { margin: 0 0 16px; font-size: 18px; font-weight: 900; }
.tool .notes { text-align: left; margin: 0; padding: 0; list-style: none; }
.tool .notes li { margin: 0 0 10px; padding: 12px 14px; background: var(--mist); border-radius: 14px; font-size: 15px; line-height: 1.75; }
.tool .again { margin-top: 8px; background: var(--white); border: 3px solid var(--ink); border-radius: 99px; padding: 12px 20px; font-weight: 900; cursor: pointer; }
.tool-after { padding: 10px 0 48px; }
.tool-after h2 { font-size: 19px; margin: 24px 0 10px; font-weight: 900; }
.next-links { margin: 0; padding: 0; list-style: none; }
.next-links a { display: block; padding: 14px 16px; margin: 0 0 10px; border: 2px solid var(--line); border-radius: 16px; text-decoration: none; font-weight: 700; }
.next-links a:hover { border-color: var(--ink); }
.next-links small { display: block; color: var(--ink-soft); font-weight: 500; font-size: 13px; }
.tool-cite { font-size: 13px; color: var(--ink-soft); line-height: 1.7; }
.tool-cite a { color: var(--ink-soft); }

@media (prefers-reduced-motion: reduce) {
  .tool .q.on, .tool .stamp { animation: none; }
  .tool-link:hover { transform: none; }
}

@media (max-width: 980px) {
  .art { grid-template-columns: minmax(0, 1fr); }
  .side { display: none; }
  .toc--top { display: block; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .paper { padding: 22px 16px; border-radius: 18px; }
  .art__title { font-size: 21px; }
  .home-hero h1, .tool-hero h1 { font-size: 27px; }
  .home-hero h1 { font-size: 22px; }
  .hero-chara { width: 84px; }
  .prose h2 { font-size: 19px; margin-top: 36px; }
  .prose h3 { font-size: 16.5px; }
  .prbar { font-size: 14px; }
  .head__nav { gap: 12px; font-size: 13px; }
}