/* 社内IT道具箱 共通スタイル
   方針：白・薄いベージュ・深緑を中心にした静かな画面。
   赤は「期限切れ・不足」、黄は「期限間近」の状態表示だけに使い、装飾には使わない。 */

:root {
  --color-primary: #176B4D;
  --color-primary-dark: #0F563E;
  --color-primary-light: #EAF5EF;

  --color-bg: #FFFFFF;
  --color-bg-subtle: #F7F8F6;
  --color-bg-warm: #F4F1E9;

  --color-text: #102235;
  --color-text-secondary: #56616B;
  --color-border: #D9DFE3;

  /* 状態表示専用（ブランドカラー・装飾には使わない） */
  --color-danger: #D94B45;
  --color-danger-bg: #FDE8E6;
  --color-danger-text: #B3312B;
  --color-warning: #D69D25;
  --color-warning-bg: #FFF2CC;
  --color-warning-text: #7A5500;

  --color-disabled-bg: #B7BDC5;
  --color-muted-bg: #EEF0F2;
  --color-muted-text: #5E6873;
  --color-info-bg: #F5FBF7;
  --color-info-border: #8FC7AA;

  --font-base: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", sans-serif;
  --container: 1200px;
  --gutter: 40px;
  --radius: 6px;
  --radius-lg: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .06);
  --transition: 180ms ease;
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 16px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.8;
  line-break: strict;
  overflow-wrap: anywhere;
}

img, svg { max-width: 100%; }
img { height: auto; }
a { color: var(--color-primary); text-underline-offset: 3px; }
a:hover { color: var(--color-primary-dark); }
:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 3px; }
h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.4; }
p, ul, ol { margin: 0; }
button { font: inherit; }

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
@media (max-width: 1024px) { :root { --gutter: 32px; } }
@media (max-width: 767px) { :root { --gutter: 16px; } }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -80px; z-index: 30;
  padding: 8px 14px; border-radius: var(--radius);
  background: var(--color-primary); color: #fff;
}
.skip-link:focus { top: 8px; color: #fff; }
.nowrap { white-space: nowrap; }
@media (max-width: 767px) { .pc-only { display: none; } }

/* ===== Header ===== */
.site-header { position: relative; z-index: 20; background: var(--color-bg); border-bottom: 1px solid var(--color-border); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: var(--header-h); }
.site-logo {
  display: inline-flex; align-items: center; gap: 10px; flex: none;
  color: var(--color-text); font-size: 22px; font-weight: 800; line-height: 1.2; text-decoration: none; white-space: nowrap;
}
.site-logo:hover { color: var(--color-text); }
.site-logo svg { color: var(--color-primary); flex: none; }
.site-nav ul { list-style: none; padding: 0; display: flex; align-items: center; }
.site-nav a {
  display: block; padding: 6px 0; color: var(--color-text); font-size: 14px; text-decoration: none;
  transition: color var(--transition);
}
.site-nav li + li { margin-left: 20px; padding-left: 20px; border-left: 1px solid var(--color-border); }
.site-nav a:hover { color: var(--color-primary); text-decoration: underline; }
.menu-toggle { display: none; }

@media (max-width: 767px) {
  :root { --header-h: 60px; }
  .site-logo { font-size: 20px; }
  .js .menu-toggle {
    display: inline-grid; place-items: center; width: 44px; height: 44px; margin-right: -8px;
    border: 0; border-radius: var(--radius); background: transparent; color: var(--color-text); cursor: pointer;
  }
  .menu-toggle:hover { background: var(--color-bg-subtle); }
  .menu-toggle .icon-close { display: none; }
  .menu-toggle[aria-expanded="true"] .icon-open { display: none; }
  .menu-toggle[aria-expanded="true"] .icon-close { display: block; }
  /* JSが動くときだけ折りたたむ（動かない環境ではリンクを常に表示） */
  .js .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--color-bg); border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow);
  }
  .js .site-nav:not(.is-open) { display: none; }
  .js .site-nav ul { display: block; padding: 4px var(--gutter) 12px; }
  .js .site-nav li + li { margin-left: 0; padding-left: 0; border-left: 0; border-top: 1px solid var(--color-border); }
  .js .site-nav a { padding: 12px 0; font-size: 15px; }
  html:not(.js) .site-header__inner { flex-wrap: wrap; gap: 4px 16px; padding-top: 10px; padding-bottom: 10px; }
  html:not(.js) .site-nav li + li { margin-left: 14px; padding-left: 14px; }
}

/* ===== Section ===== */
.section { padding: 72px 0; }
.section--subtle { background: var(--color-bg-subtle); }
.section-title { font-size: 34px; font-weight: 800; line-height: 1.35; text-wrap: balance; }
.section-title::after { content: ""; display: block; width: 48px; height: 3px; margin-top: 16px; background: var(--color-primary); }
.section-lead { margin-top: 18px; font-size: 16px; }
@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .section-title { font-size: 26px; }
  .section-title::after { width: 40px; margin-top: 12px; }
  .section-lead { margin-top: 14px; font-size: 15px; }
}

/* ===== Button / Badge ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px; padding: 12px 28px; border: 1px solid transparent; border-radius: var(--radius);
  font-size: 16px; font-weight: 700; line-height: 1.4; text-align: center; text-decoration: none; cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), opacity var(--transition);
}
.btn svg { flex: none; }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn--primary:focus-visible { outline-color: var(--color-primary-dark); }
/* 公開準備中などで押せないボタン */
.btn:disabled { background: var(--color-disabled-bg); color: #fff; cursor: not-allowed; }
.btn--soft:disabled { background: var(--color-muted-bg); color: var(--color-muted-text); border-color: var(--color-border); font-weight: 500; }
.btn--block { display: flex; width: 100%; }

.badge {
  display: inline-flex; align-items: center; min-height: 26px; padding: 2px 12px;
  border-radius: 999px; font-size: 13px; font-weight: 700; line-height: 1.4; white-space: nowrap;
}
.badge--free { background: var(--color-primary); color: #fff; }
.badge--soon { background: var(--color-muted-bg); color: var(--color-muted-text); }
.badge--active { background: var(--color-primary-light); color: var(--color-primary-dark); }

.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
/* ボタンの横に置く、控えめなリンク（例：Excel形式でダウンロード） */
.cta-sub-link { font-size: 14px; font-weight: 500; }
@media (max-width: 767px) {
  .cta-row { display: grid; justify-items: center; gap: 10px; }
  .cta-row .btn { width: 100%; }
}

/* ===== Icon ===== */
.icon-tile {
  display: inline-grid; place-items: center; flex: none;
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--color-primary-light); color: var(--color-primary);
}
.icon-tile svg { width: 38px; height: 38px; }
.icon-tile--sm { width: 52px; height: 52px; border-radius: var(--radius-lg); }
.icon-tile--sm svg { width: 28px; height: 28px; }
.icon-tile--muted { background: var(--color-muted-bg); color: var(--color-muted-text); }

/* ===== Footer ===== */
.site-footer { background: var(--color-primary-dark); color: rgba(255, 255, 255, .88); font-size: 13px; }
.site-footer__inner { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 24px 56px; padding-top: 36px; padding-bottom: 36px; }
.footer-logo { color: #fff; font-size: 20px; font-weight: 800; text-decoration: none; white-space: nowrap; }
.footer-logo:hover { color: #fff; }
.footer-tagline { margin-top: 6px; }
.footer-links { margin-top: 10px; }
.footer-links a { color: #fff; }
.footer-links a:hover { color: #fff; opacity: .85; }
.footer-legal { text-align: right; line-height: 1.8; }
@media (max-width: 767px) {
  .site-footer__inner { grid-template-columns: 1fr; gap: 16px; padding-top: 28px; padding-bottom: 32px; }
  .footer-legal { text-align: left; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .2); }
}

/* ===== トップ：ファーストビュー（4枚のスライド） ===== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(90deg, var(--color-bg) 0%, var(--color-bg-warm) 100%);
  border-bottom: 1px solid var(--color-border);
}
.hero-carousel__viewport { overflow: hidden; touch-action: pan-y; }
.hero-carousel__track { display: flex; align-items: stretch; }
.hero-carousel__track.is-animating { transition: transform 700ms cubic-bezier(.4, 0, .2, 1); }
.hero-slide { flex: 0 0 100%; min-width: 0; }
/* JSが動かないときは1枚目だけを見せる（道具は下の一覧で全部見られる） */
html:not(.js) .hero-slide:not(:first-child) { display: none; }
.hero-slide__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center;
  min-height: 460px; padding-top: 48px; padding-bottom: 24px;
}
.hero-slide__eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-bottom: 16px; }
.hero__title { color: var(--color-primary-dark); font-size: 60px; font-weight: 800; line-height: 1.2; letter-spacing: .01em; white-space: nowrap; }
.hero__tool-title { color: var(--color-primary-dark); font-size: 42px; font-weight: 800; line-height: 1.3; text-wrap: balance; }
.hero__target { margin-top: 24px; font-size: 24px; font-weight: 700; line-height: 1.6; }
.hero__text { margin-top: 12px; font-size: 17px; line-height: 1.8; }
.hero__tool-title + .hero__text { margin-top: 18px; }
.hero__status { margin-top: 20px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
.hero__note { color: var(--color-text-secondary); font-size: 13px; }
.hero__actions { margin-top: 28px; }
.hero__actions .btn { min-width: 220px; }
/* 写真：コンテナの右カラムに収め、左端だけ背景に溶け込ませる */
.hero-slide__media { margin: 0; }
.hero-slide__media img {
  display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: 72% 50%;
  border-radius: var(--radius-lg);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 14%);
          mask-image: linear-gradient(90deg, transparent 0%, #000 14%);
}

/* 操作（ドット・前へ・次へ）。JSが動くときだけ表示 */
.hero-carousel__controls { display: none; }
.js .hero-carousel__controls { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 8px; padding-bottom: 28px; }
.hero-carousel__dots { list-style: none; padding: 0; display: flex; gap: 6px; }
.hero-carousel__dot {
  display: grid; place-items: center; width: 32px; height: 32px; padding: 0; border: 0; background: transparent; cursor: pointer;
}
.hero-carousel__dot::before {
  content: ""; width: 10px; height: 10px; border-radius: 50%;
  border: 1.5px solid var(--color-primary); background: transparent; transition: background-color var(--transition), width var(--transition);
}
.hero-carousel__dot[aria-current="true"]::before { width: 28px; border-radius: 999px; background: var(--color-primary); }
.hero-carousel__buttons { display: flex; gap: 8px; }
.hero-carousel__btn {
  display: grid; place-items: center; width: 40px; height: 40px; padding: 0;
  border: 1px solid var(--color-border); border-radius: 50%; background: var(--color-bg); color: var(--color-text); cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
}
.hero-carousel__btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

@media (max-width: 1024px) {
  .hero-slide__inner { gap: 32px; min-height: 400px; }
  .hero__title { font-size: 48px; }
  .hero__tool-title { font-size: 34px; }
  .hero__target { font-size: 20px; }
}
@media (max-width: 767px) {
  .hero { background: var(--color-bg); }
  /* スライドの高さは一番高いものに揃う。写真は下端に揃えて、切り替えても位置が動かないようにする */
  .hero-slide__inner { grid-template-columns: 1fr; grid-template-rows: 1fr auto; gap: 20px; min-height: 0; height: 100%; align-items: start; padding-top: 28px; padding-bottom: 8px; }
  .hero-slide__media { align-self: end; }
  .hero__title { font-size: 38px; }
  .hero__tool-title { font-size: 28px; }
  .hero__target { margin-top: 14px; font-size: 19px; }
  .hero__text { font-size: 15px; }
  .hero__actions { margin-top: 20px; }
  .hero__actions .btn { width: 100%; }
  .hero-slide__media img { aspect-ratio: 3 / 2; object-position: 70% 50%; -webkit-mask-image: none; mask-image: none; }
  .js .hero-carousel__controls { padding-top: 12px; padding-bottom: 20px; }
}
@media (max-width: 360px) {
  .hero__title { font-size: 34px; }
  .hero-carousel__dots { gap: 0; }
  .hero-carousel__dot { width: 28px; }
  .hero-carousel__buttons { gap: 6px; }
  .hero-carousel__btn { width: 36px; height: 36px; }
}

/* ===== トップ：道具の一覧 ===== */
.tool-grid { list-style: none; padding: 0; margin-top: 32px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.tool-card {
  display: flex; flex-direction: column; align-items: center; height: 100%;
  padding: 32px 24px 24px; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}
.tool-card--active:hover { border-color: var(--color-primary); }
.tool-card__title { margin-top: 20px; font-size: 20px; font-weight: 700; text-align: center; text-wrap: balance; }
.tool-card__desc { margin-top: 14px; width: 100%; color: var(--color-text-secondary); font-size: 15px; line-height: 1.8; }
.tool-card__status { margin-top: 18px; width: 100%; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 10px; }
.tool-card__note { color: var(--color-text-secondary); font-size: 13px; }
.tool-card__action { margin-top: auto; padding-top: 22px; width: 100%; }
@media (max-width: 1024px) { .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) {
  .tool-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 24px; }
  .tool-card {
    display: grid; grid-template-columns: 56px minmax(0, 1fr); column-gap: 16px; align-items: start;
    padding: 20px 18px 18px;
  }
  .tool-card .icon-tile { grid-row: span 3; width: 56px; height: 56px; }
  .tool-card .icon-tile svg { width: 30px; height: 30px; }
  .tool-card__title { margin-top: 0; font-size: 18px; text-align: left; }
  .tool-card__desc { margin-top: 6px; font-size: 14px; line-height: 1.7; }
  .tool-card__status { margin-top: 10px; justify-content: flex-start; }
  .tool-card__action { grid-column: 1 / -1; padding-top: 16px; }
  .tool-card__action .btn { min-height: 48px; }
}

/* 道具の一覧：これから増える道具の「空き棚」 */
.shelf-note {
  display: flex; align-items: center; gap: 16px; margin-top: 24px; padding: 20px 24px;
  border: 1.5px dashed var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg-subtle);
}
.shelf-note .icon-tile { width: 48px; height: 48px; }
.shelf-note .icon-tile svg { width: 26px; height: 26px; }
.shelf-note__title { font-size: 16px; font-weight: 700; }
.shelf-note__text { color: var(--color-text-secondary); font-size: 14px; line-height: 1.7; }
@media (max-width: 767px) {
  .shelf-note { align-items: flex-start; margin-top: 14px; padding: 16px; gap: 14px; }
}

/* ===== トップ：開発中の道具 ===== */
.lab-card {
  display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 28px; align-items: start;
  margin-top: 32px; padding: 32px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg);
}
.lab-card__logo { display: block; width: 96px; height: 96px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.lab-card__status { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
.lab-card__title { margin-top: 12px; font-size: 24px; font-weight: 800; }
.lab-card__kind { margin-left: 12px; color: var(--color-text-secondary); font-size: 15px; font-weight: 500; }
.lab-card__desc { margin-top: 10px; font-size: 16px; line-height: 1.8; }
.lab-card__notes { margin-top: 14px; padding-left: 1.3em; color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }
.lab-card__notes li + li { margin-top: 2px; }
.lab-card__actions { margin-top: 22px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.lab-card__foot { margin-top: 12px; color: var(--color-text-secondary); font-size: 13px; }
@media (max-width: 767px) {
  /* スマホ：ロゴの右にバッジと名前、説明から下は全幅 */
  .lab-card { grid-template-columns: 56px minmax(0, 1fr); gap: 0 16px; margin-top: 24px; padding: 20px 18px; }
  .lab-card__body { display: contents; }
  .lab-card__logo { grid-row: span 2; width: 56px; height: 56px; }
  .lab-card__title { margin-top: 8px; font-size: 20px; }
  .lab-card__kind { display: block; margin: 2px 0 0; font-size: 14px; }
  .lab-card__desc { margin-top: 14px; font-size: 15px; line-height: 1.7; }
  .lab-card__desc, .lab-card__notes, .lab-card__actions, .lab-card__foot { grid-column: 1 / -1; }
  .lab-card__actions { display: grid; justify-items: center; gap: 12px; }
  .lab-card__actions .btn { width: 100%; min-height: 48px; }
}

/* ===== トップ：比較 ===== */
.compare { width: 100%; margin-top: 32px; border-collapse: collapse; background: var(--color-bg); font-size: 15px; }
.compare th, .compare td { padding: 16px 20px; border: 1px solid var(--color-border); text-align: left; vertical-align: middle; line-height: 1.7; }
.compare thead th { background: var(--color-bg-subtle); font-size: 15px; font-weight: 700; }
.compare thead th.is-ours { background: var(--color-primary-light); color: var(--color-primary-dark); }
.compare tbody th { width: 22%; font-weight: 700; }
.compare td { width: 39%; }
.compare-note { margin-top: 16px; color: var(--color-text-secondary); font-size: 14px; }
.compare-cards { display: none; }
@media (max-width: 767px) {
  .compare { display: none; }
  .compare-cards { display: grid; gap: 12px; list-style: none; padding: 0; margin-top: 24px; }
  .compare-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-bg); }
  .compare-card__title { padding: 12px 16px; background: var(--color-bg-subtle); border-bottom: 1px solid var(--color-border); font-size: 16px; font-weight: 700; }
  .compare-card dl { margin: 0; }
  .compare-card__row { padding: 10px 16px; }
  .compare-card__row + .compare-card__row { border-top: 1px solid var(--color-border); }
  .compare-card__row.is-ours { background: var(--color-primary-light); }
  .compare-card dt { color: var(--color-text-secondary); font-size: 12px; line-height: 1.6; }
  .compare-card__row.is-ours dt { color: var(--color-primary-dark); font-weight: 700; }
  .compare-card dd { margin: 2px 0 0; font-size: 15px; line-height: 1.7; }
}

/* ===== 紹介ページ：ファーストビュー ===== */
.page-hero { background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-warm) 100%); border-bottom: 1px solid var(--color-border); }
.page-hero__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 56px; align-items: center;
  grid-template-areas: "title media" "desc media" "cta media";
  grid-template-rows: auto auto 1fr;
  padding-top: 56px; padding-bottom: 64px;
}
.page-hero__title { grid-area: title; align-self: end; font-size: 48px; font-weight: 800; line-height: 1.3; }
.page-hero__desc { grid-area: desc; margin-top: 20px; font-size: 17px; line-height: 1.9; }
.page-hero__cta { grid-area: cta; align-self: start; margin-top: 32px; }
.page-hero__cta .btn { min-width: 260px; }
.page-hero__media { grid-area: media; margin: 0; }
.page-hero__media img { display: block; width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
@media (max-width: 1024px) {
  .page-hero__inner { column-gap: 32px; }
  .page-hero__title { font-size: 40px; }
}
@media (max-width: 767px) {
  .page-hero__inner {
    grid-template-columns: 1fr; grid-template-areas: "title" "desc" "media" "cta"; grid-template-rows: none;
    padding-top: 32px; padding-bottom: 40px;
  }
  .page-hero__title { font-size: 32px; }
  .page-hero__desc { margin-top: 14px; font-size: 15px; line-height: 1.8; }
  .page-hero__media { margin-top: 24px; }
  .page-hero__cta { margin-top: 20px; }
  .page-hero__cta .btn { min-width: 0; }
}

/* ===== 紹介ページ：台帳の見本 ===== */
.ledger-preview { margin-top: 28px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-bg); box-shadow: var(--shadow); }
.ledger-preview__bar { display: flex; align-items: center; gap: 10px; padding: 12px 20px; background: var(--color-bg-subtle); border-bottom: 1px solid var(--color-border); font-size: 15px; font-weight: 700; }
.ledger-preview__bar svg { color: var(--color-primary); }
.ledger { width: 100%; border-collapse: collapse; font-size: 15px; }
.ledger th, .ledger td { height: 54px; padding: 8px 20px; border-bottom: 1px solid var(--color-border); text-align: left; white-space: nowrap; }
.ledger th + th, .ledger td + td { border-left: 1px solid var(--color-border); }
.ledger tbody tr:last-child td { border-bottom: 0; }
.ledger thead th { background: var(--color-bg-subtle); font-size: 14px; font-weight: 700; }
.ledger thead th.is-auto { background: var(--color-primary-light); color: var(--color-primary-dark); }
.ledger .num { font-variant-numeric: tabular-nums; }
.ledger td.is-expired { background: var(--color-danger-bg); color: var(--color-danger-text); font-weight: 700; }
.ledger td.is-soon { background: var(--color-warning-bg); color: var(--color-warning-text); font-weight: 700; }
.ledger-caption { margin-top: 12px; color: var(--color-text-secondary); font-size: 14px; }
@media (max-width: 767px) {
  .ledger-preview { margin-top: 20px; }
  .ledger-preview__bar { padding: 10px 14px; font-size: 14px; }
  .ledger .col-sub { display: none; }
  .ledger { font-size: 14px; }
  .ledger th, .ledger td { height: 46px; padding: 6px 10px; }
  .ledger thead th { font-size: 13px; }
  .ledger-caption { font-size: 13px; }
}

/* ===== 紹介ページ：無料版でできること ===== */
.feature-grid { list-style: none; padding: 0; margin-top: 32px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.feature-card { padding: 24px 22px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg); }
.feature-card__title { margin-top: 16px; font-size: 18px; font-weight: 700; }
.feature-card__desc { margin-top: 8px; color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }
@media (max-width: 1024px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 767px) {
  .feature-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 24px; }
  .feature-card { display: grid; grid-template-columns: 52px minmax(0, 1fr); column-gap: 16px; padding: 16px; }
  .feature-card .icon-tile { grid-row: span 2; }
  .feature-card__title { margin-top: 0; font-size: 17px; }
  .feature-card__desc { margin-top: 2px; }
}

/* ===== 紹介ページ：手順 ===== */
.steps { list-style: none; padding: 0; margin-top: 32px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; counter-reset: step; }
.steps li {
  counter-increment: step; position: relative;
  display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; align-items: center;
  padding-right: 20px; font-size: 16px; line-height: 1.7;
}
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-size: 20px; font-weight: 700;
}
/* 手順の間の矢印（装飾） */
.steps li:not(:last-child)::after {
  content: ""; position: absolute; right: -14px; top: 50%; width: 10px; height: 10px; margin-top: -5px;
  border-top: 2px solid #9AA5AE; border-right: 2px solid #9AA5AE; transform: rotate(45deg);
}
.steps-cta { margin-top: 32px; }
@media (max-width: 767px) {
  .steps { grid-template-columns: 1fr; gap: 14px; margin-top: 24px; }
  .steps li { grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding-right: 0; font-size: 15px; }
  .steps li::before { width: 40px; height: 40px; font-size: 17px; }
  .steps li:not(:last-child)::after { display: none; }
  .steps-cta { margin-top: 24px; }
}

/* ===== 情報ボックス ===== */
.info-box {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 16px; align-items: start;
  margin-top: 32px; padding: 20px 24px; border: 1px solid var(--color-info-border); border-radius: var(--radius-lg); background: var(--color-info-bg);
}
.info-box svg { grid-row: span 2; color: var(--color-primary); margin-top: 2px; }
.info-box__title { font-size: 16px; font-weight: 700; }
.info-box__body { font-size: 15px; line-height: 1.8; }
@media (max-width: 767px) {
  .info-box { margin-top: 24px; padding: 16px; gap: 4px 12px; }
  .info-box__body { font-size: 14px; }
}

/* ===== 紹介ページ：有料版 ===== */
.paid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px 56px; align-items: start; }
.paid__lead { margin-top: 18px; }
.paid__note { margin-top: 12px; color: var(--color-text-secondary); font-size: 14px; }
.paid__subtitle { margin-top: 24px; font-size: 17px; }
.paid__terms { margin-top: 10px; padding-left: 1.3em; font-size: 14px; line-height: 1.8; }
.paid__terms li + li { margin-top: 4px; }
.paid__cta { margin-top: 16px; }
.check-list { list-style: none; padding: 24px 28px; display: grid; gap: 14px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg); }
.check-list li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; font-size: 16px; line-height: 1.6; }
.check-list svg { color: var(--color-primary); margin-top: 1px; }
@media (max-width: 767px) {
  .paid { grid-template-columns: 1fr; gap: 20px; }
  .check-list { padding: 18px 16px; gap: 12px; }
  .check-list li { font-size: 15px; }
}

/* ===== よくある質問 ===== */
.accordion { margin-top: 32px; display: grid; gap: 10px; }
.accordion__item { border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.accordion__heading { margin: 0; font-size: 16px; }
.accordion__button {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%;
  padding: 16px 20px; border: 0; border-radius: var(--radius); background: transparent;
  color: var(--color-text); font-size: 16px; font-weight: 700; text-align: left; cursor: pointer;
  transition: background-color var(--transition);
}
.accordion__button:hover { background: var(--color-bg-subtle); }
.accordion__icon { position: relative; flex: none; width: 16px; height: 16px; }
.accordion__icon::before, .accordion__icon::after {
  content: ""; position: absolute; left: 0; top: 7px; width: 16px; height: 2px; background: var(--color-text-secondary);
}
.accordion__icon::after { transform: rotate(90deg); transition: opacity var(--transition); }
.accordion__button[aria-expanded="true"] .accordion__icon::after { opacity: 0; }
.accordion__panel { padding: 0 20px 18px; color: var(--color-text-secondary); font-size: 15px; line-height: 1.9; }
.accordion__panel[hidden] { display: none; }
@media (max-width: 767px) {
  .accordion { margin-top: 24px; gap: 8px; }
  .accordion__button { padding: 14px 16px; font-size: 15px; }
  .accordion__panel { padding: 0 16px 16px; font-size: 14px; }
}

/* ===== 記事 ===== */
.article { padding: 40px 0 72px; }
.article__inner { max-width: calc(760px + var(--gutter) * 2); }
.breadcrumb ol { display: flex; flex-wrap: wrap; list-style: none; padding: 0; color: var(--color-text-secondary); font-size: 13px; }
.breadcrumb li + li::before { content: "›"; margin: 0 8px; color: var(--color-text-secondary); }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.article__header { margin-top: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--color-border); }
.article__title { font-size: 32px; font-weight: 800; line-height: 1.45; }
.article__date { margin-top: 12px; color: var(--color-text-secondary); font-size: 14px; }
.article__back { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--color-border); }

/* 本文（原稿のMarkdownから作ったHTML） */
.prose { font-size: 16px; line-height: 1.9; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 56px; padding-bottom: 10px; border-bottom: 2px solid var(--color-primary); font-size: 25px; font-weight: 800; }
.prose h3 { margin-top: 36px; padding-left: 12px; border-left: 4px solid var(--color-primary); font-size: 19px; }
.prose h2 + *, .prose h3 + * { margin-top: 16px; }
.prose ul, .prose ol { padding-left: 1.5em; }
.prose li + li { margin-top: 6px; }
.prose strong { font-weight: 700; background: linear-gradient(transparent 62%, var(--color-primary-light) 62%); }
.prose code { padding: 1px 6px; border-radius: 4px; background: var(--color-muted-bg); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.prose pre {
  padding: 16px 18px; border: 1px solid var(--color-border); border-radius: var(--radius);
  background: var(--color-bg-subtle); font-size: 14px; line-height: 1.7;
  white-space: pre-wrap; word-break: break-all;
}
.prose pre code { padding: 0; background: none; font-size: inherit; }
.prose hr { margin: 48px 0 0; border: 0; border-top: 1px solid var(--color-border); }
.prose hr + p { margin-top: 20px; color: var(--color-text-secondary); font-size: 14px; }
.table-scroll { overflow-x: auto; }
.prose table { width: 100%; min-width: 480px; border-collapse: collapse; font-size: 15px; line-height: 1.7; }
.prose th, .prose td { padding: 10px 14px; border: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.prose thead th { background: var(--color-bg-subtle); font-weight: 700; white-space: nowrap; }
@media (max-width: 767px) {
  .article { padding: 24px 0 48px; }
  .article__title { font-size: 24px; }
  .prose { font-size: 15px; }
  .prose h2 { margin-top: 44px; font-size: 21px; }
  .prose h3 { margin-top: 30px; font-size: 17px; }
  .prose pre { padding: 12px 14px; font-size: 13px; }
  .prose table { font-size: 14px; }
  .prose th, .prose td { padding: 8px 10px; }
}

/* 記事の一覧 */
.article-list { list-style: none; padding: 0; margin-top: 32px; display: grid; gap: 16px; }
.article-list__item { padding: 20px 24px; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg); }
.article-list__link { font-size: 19px; font-weight: 700; line-height: 1.5; }
.article-list__desc { margin-top: 8px; color: var(--color-text-secondary); font-size: 15px; }
.article-list__date { margin-top: 8px; color: var(--color-text-secondary); font-size: 13px; }
@media (max-width: 767px) {
  .article-list { margin-top: 24px; gap: 12px; }
  .article-list__item { padding: 16px; }
  .article-list__link { font-size: 17px; }
}