/* サンプル「文字で伝える」：ことのは行政書士事務所（架空）。言葉が主役。見出しは明朝、本文はゴシック。色は静かな墨と青緑。 */
:root {
  --paper: #F6F7F5;
  --ink: #1E2B2F;
  --teal: #2E5E63;
  --line: #D5DCD8;
  --mist: #E9EEEC;
  --mincho: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --gothic: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { word-break: auto-phrase; line-break: strict;  margin: 0; background: var(--paper); color: var(--ink); font: 400 1rem/1.9 var(--gothic); }
a { color: var(--teal); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }
.wrap { max-width: 64rem; margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 42rem; }

/* ヘッダーは画面の上に固定（ゆうき 2026-11-06）。背景がないと下の文字が透けるので紙の色を敷く。ページ内リンクの行き先がヘッダーの下に隠れないよう scroll-padding-top をヘッダーの高さ分あける */
.top { position: sticky; top: 0; z-index: 40; background: var(--paper); border-bottom: 1px solid var(--line); }
html { scroll-padding-top: 6.5rem; }
@media (min-width: 48rem) { html { scroll-padding-top: 4.5rem; } }
.top .wrap { display: flex; flex-wrap: wrap; gap: .5rem 2rem; align-items: center; justify-content: space-between; padding-block: .9rem; }
.name { font: 600 1.15rem/1.4 var(--mincho); color: var(--ink); text-decoration: none; letter-spacing: .06em; }
.top nav { display: flex; flex-wrap: wrap; gap: .2rem 1.2rem; font-size: .9rem; }
.top nav a { color: var(--ink); text-decoration: none; padding: .4rem 0; }
.top nav a:hover { color: var(--teal); }

.hero { padding-block: 3rem 4rem; }
.hero .wrap { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: end; }
.tate { margin: 0; writing-mode: vertical-rl; font: 600 clamp(2.4rem, 9vw, 4.6rem)/1.45 var(--mincho); letter-spacing: .12em; white-space: nowrap; justify-self: center; color: var(--ink); }
.hero-side .lead { font: 500 1.15rem/1.9 var(--mincho); margin-top: 0; }
.btn { display: inline-block; margin-top: .8rem; padding: .85rem 1.6rem; background: var(--teal); color: #fff; text-decoration: none; border-radius: 4px; box-shadow: 0 2px 0 #1C3E42, 0 6px 14px rgba(30, 43, 47, .18); font-weight: 600; }
.btn:hover { background: #26504F; }
@media (min-width: 48rem) {
  .hero { padding-block: 4.5rem 5.5rem; }
  .hero .wrap { grid-template-columns: auto 1fr; gap: 4rem; }
  .tate { order: 2; justify-self: end; }
  .hero-side { order: 1; max-width: 30rem; padding-bottom: 1rem; }
}

.sec { padding-block: 3.5rem; }
.sec.mist { background: var(--mist); }
h2 { font: 600 1.6rem/1.5 var(--mincho); letter-spacing: .08em; margin: 0 0 1.4rem; }

.help { margin: 0; display: grid; gap: 1.6rem 3rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.help div { border-top: 2px solid var(--teal); padding-top: .9rem; }
.help dt { font: 600 1.15rem/1.5 var(--mincho); }
.help dd { margin: .3rem 0 0; }

.flow { list-style: none; counter-reset: s; margin: 0; padding: 0; display: grid; gap: 1.4rem; }
.flow li { counter-increment: s; display: grid; grid-template-columns: 2.6rem 1fr; column-gap: 1rem; }
.flow li::before { content: counter(s); grid-row: span 2; font: 600 1.8rem/1.2 var(--mincho); color: var(--teal); }
.flow b { font-weight: 600; }
.flow span { color: #4A5A5E; font-size: .95rem; }

.facts { margin: 0; }
.facts div { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--line); }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; }

.ask .mail { font: 600 1.5rem/1.4 var(--mincho); color: var(--teal); user-select: all; }

.foot { border-top: 1px solid var(--line); padding-block: 2rem 3rem; font-size: .85rem; color: #56666A; }
.foot p { margin: .2rem 0; }