/* ==========================================================================
   BINDER — shared stylesheet
   ブランド独自のトーン：墨（ink）＋ 紙（paper）＋ 炎（flame）＋ 真鍮（brass）
   炎＝「挑む人」、真鍮＝「支える人」。二色を綴じるのがBINDER。
   ※ Synapsis Group / 虎ノ門ファミリーオフィスの濃紺＋ゴールドとは意図的に分けている。
   ========================================================================== */

:root {
  /* ---- 墨（ベース） */
  --ink:        #0C1017;
  --ink-2:      #151B26;
  --ink-3:      #222A38;
  --line-on-ink:#39424F;
  --on-ink:     #C8D0DC;   /* 墨地の本文（12.3:1） */
  --on-ink-2:   #9AA5B4;   /* 墨地の補足（7.6:1） */

  /* ---- 紙 */
  --paper:      #F6F3ED;
  --paper-2:    #EBE6DC;
  --white:      #FFFFFF;
  --text:       #1A1F28;
  --text-muted: #5A6472;   /* 紙地で5.4:1 */
  --line:       #DCD6CA;

  /* ---- 炎：挑む人 */
  --flame-700:  #8F2F14;
  --flame-600:  #B03A19;   /* 白文字でAA（6.1:1）。ボタン地 */
  --flame-500:  #D4501F;   /* 面。上に置く文字は墨（4.5:1） */
  --flame-400:  #E8763F;   /* 墨地の上の文字（6.4:1） */
  --flame-100:  #FBEAE1;

  /* ---- 真鍮：支える人 */
  --brass-700:  #6E5321;
  --brass-600:  #8A6A2C;   /* 紙地で4.5:1 */
  --brass-500:  #B48A3C;   /* 面。上に置く文字は墨（6.0:1） */
  --brass-400:  #D4AE64;   /* 墨地の上の文字（9.1:1） */
  --brass-100:  #F5EEDF;

  --ease: cubic-bezier(.22,.61,.36,1);
  --sans:  "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --mincho:"Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --disp:  "Archivo", "Helvetica Neue", Arial, sans-serif;

  --container: 1180px;
  --header-h: 84px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; }
p { margin: 0; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 860px; margin: 0 auto; padding: 0 32px; }

/* 読み上げ専用 */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 2000;
  background: var(--flame-600); color: #fff; padding: 10px 18px; border-radius: 4px;
  font-weight: 700;
}
.skip-link:focus { top: 12px; }

/* ------------------------------------------------------------- 共通パーツ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--disp);
  font-size: 13px; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--flame-600);
  margin-bottom: 20px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--flame-500); }
.on-ink .eyebrow, .bg-ink .eyebrow { color: var(--flame-400); }
.on-ink .eyebrow::before, .bg-ink .eyebrow::before { background: var(--flame-400); }
.eyebrow.is-brass { color: var(--brass-600); }
.eyebrow.is-brass::before { background: var(--brass-500); }
.bg-ink .eyebrow.is-brass { color: var(--brass-400); }
.bg-ink .eyebrow.is-brass::before { background: var(--brass-400); }

.h-jp {
  font-family: var(--mincho);
  font-weight: 900;
  line-height: 1.42;
  letter-spacing: .01em;
  font-size: clamp(28px, 4.2vw, 44px);
  word-break: auto-phrase;   /* 対応ブラウザでは文節で折り返す */
  line-break: strict;
}
.h-jp-sm { font-size: clamp(23px, 3vw, 32px); }
.lead { font-size: clamp(16px, 1.6vw, 18px); color: var(--text-muted); }
.bg-ink .lead, .on-ink .lead { color: var(--on-ink); }
.u-nb { display: inline-block; }

/* 綴じ穴のレール（装飾） */
.holes {
  position: absolute; left: 0; top: 0; bottom: 0; width: 34px;
  display: flex; flex-direction: column; justify-content: center; gap: 46px;
  align-items: center; pointer-events: none;
}
.holes i {
  width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid var(--line); background: transparent; display: block;
}
.bg-ink .holes i, .on-ink .holes i { border-color: var(--line-on-ink); }

/* ボタン */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 17px 34px; font-size: 16px; font-weight: 700;
  border-radius: 2px; border: 2px solid transparent; cursor: pointer;
  font-family: var(--sans); text-align: center;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn .arrow { transition: transform .25s var(--ease); font-family: var(--disp); }
.btn:hover .arrow { transform: translateX(5px); }
.btn-flame { background: var(--flame-600); color: #fff; }           /* 6.1:1 */
.btn-flame:hover { background: var(--flame-700); color: #fff; }
.btn-brass { background: var(--brass-500); color: var(--ink); }     /* 6.0:1 */
.btn-brass:hover { background: var(--brass-400); color: var(--ink); }
.btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-ghost:hover { border-color: var(--flame-400); color: var(--flame-400); }
.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-lg { padding: 20px 42px; font-size: 17px; }
.btn-block { width: 100%; }

/* テキストリンク */
.tlink {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 700; color: var(--flame-600);
  border-bottom: 2px solid transparent; padding-bottom: 2px;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}
.tlink:hover { border-color: var(--flame-600); }
.bg-ink .tlink, .on-ink .tlink { color: var(--flame-400); }
.bg-ink .tlink:hover, .on-ink .tlink:hover { border-color: var(--flame-400); }
.tlink .arrow { transition: transform .25s var(--ease); }
.tlink:hover .arrow { transform: translateX(4px); }

/* ---------------------------------------------------------------- header */
.site-header {
  position: fixed; inset: 0 0 auto 0; height: var(--header-h);
  background: rgba(12,16,23,.94);
  backdrop-filter: saturate(140%) blur(8px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
/* ロックアップ（シンボル＋文字ロゴ）を上段、サービス定義を下段に「均等割り付け」で置く。
   下段は text-align-last: justify でロゴの幅にぴったり収まる。幅を変えるときは
   --brand-w だけを直せば、上下ともに追随する。 */
.brand {
  --brand-w: 208px;
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  width: var(--brand-w);
}
.brand__lockup { display: flex; align-items: center; gap: 11px; width: 100%; }
.brand__mark { width: 46px; height: auto; flex: none; }
/* 文字ロゴはアウトライン化したSVG（フォント読み込みに依存させない） */
.brand__wordmark { flex: 1 1 auto; width: auto; height: auto; color: #fff; display: block; }
.brand__sub {
  display: block; width: 100%;
  font-size: 10.5px; line-height: 1.4; color: var(--on-ink-2);
  text-align: justify; text-align-last: justify;
  word-break: keep-all;
}

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a { color: var(--on-ink); font-size: 15px; font-weight: 500; transition: color .2s; }
.main-nav a:hover, .main-nav a.active { color: var(--flame-400); }
.nav-cta {
  background: var(--flame-600); color: #fff !important;
  padding: 12px 22px; border-radius: 2px; font-weight: 700; font-size: 14.5px;
}
.nav-cta:hover { background: var(--flame-700); color: #fff !important; }
.nav-toggle {
  display: none; width: 44px; height: 44px; background: none; border: 0; cursor: pointer;
  flex-direction: column; justify-content: center; gap: 6px; padding: 0;
}
.nav-toggle span { display: block; height: 2px; background: #fff; transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

main { padding-top: var(--header-h); }

/* ------------------------------------------------------------------ hero */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink); color: #fff;
  padding: 104px 0 96px;
}
.hero__rings {
  position: absolute; right: -180px; top: -110px; width: 720px; height: 720px;
  opacity: .5; pointer-events: none;
}
.hero__rings circle { fill: none; stroke-width: 1.5; }
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  font-family: var(--mincho); font-weight: 900;
  font-size: clamp(34px, 6.2vw, 74px);
  line-height: 1.28; letter-spacing: .005em;
  margin: 0 0 26px;
}
.hero h1 .accent { color: var(--flame-400); }
.hero__sub {
  font-family: var(--disp); font-weight: 800; text-transform: uppercase;
  letter-spacing: .2em; font-size: clamp(12px, 1.4vw, 15px);
  color: var(--brass-400); margin-bottom: 26px;
}
.hero__tagline {
  display: inline-block;
  font-family: var(--mincho); font-weight: 700;
  font-size: clamp(18px, 2.2vw, 25px);
  color: var(--brass-400);
  border-left: 3px solid var(--brass-500);
  padding-left: 18px; margin-bottom: 30px;
}
.hero__lead { max-width: 720px; color: var(--on-ink); font-size: clamp(15.5px, 1.6vw, 18px); margin-bottom: 40px; }
.hero__lead strong { color: #fff; font-weight: 700; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.hero__note { font-size: 13.5px; color: var(--on-ink-2); }


/* 利用者ティッカー */
.ticker {
  background: var(--ink-2); border-top: 1px solid var(--line-on-ink);
  overflow: hidden; padding: 16px 0;
}
.ticker__track { display: flex; gap: 0; width: max-content; animation: ticker 42s linear infinite; }
.ticker__set { display: flex; gap: 0; }
.ticker__item {
  display: inline-flex; align-items: center; gap: 16px; padding: 0 26px;
  font-size: 14px; font-weight: 700; letter-spacing: .04em; color: var(--on-ink);
  white-space: nowrap;
}
.ticker__item::after { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--flame-500); }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .ticker__track { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; }
  .ticker__set { flex-wrap: wrap; justify-content: center; }
  .ticker__set + .ticker__set { display: none; }
}

/* -------------------------------------------------------------- sections */
section { padding: 108px 0; position: relative; }
section[id] { scroll-margin-top: calc(var(--header-h) + 12px); }
.bg-paper  { background: var(--paper); }
.bg-paper2 { background: var(--paper-2); }
.bg-white  { background: var(--white); }
.bg-ink    { background: var(--ink); color: #fff; }
.bg-ink h2, .bg-ink h3 { color: #fff; }
.bg-ink p  { color: var(--on-ink); }

.section-head { max-width: 780px; margin-bottom: 56px; }
.section-head .lead { margin-top: 18px; }

/* --------------------------------------- BINDERとは：2枚をロゴが綴じる図 */
/* 中央の帯は 2026.08 にユーザー指示で廃止。左右のカードを「大きなダブルリング」が
   またいで繋ぐ構図にしている。帯（.bind__core）を復活させないこと。 */
.bind {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 116px;                 /* リングが渡る"すきま"。リング幅と連動させる */
  align-items: stretch;
  margin-top: 56px;
}
.bind__side {
  background: var(--white); border: 1px solid var(--line);
  padding: 46px 42px;
}
.bind__side--challenger { border-top: 5px solid var(--flame-500); }
.bind__side--sponsor    { border-top: 5px solid var(--brass-500); }
.bind__label {
  font-family: var(--disp); font-weight: 900; font-size: 12px;
  letter-spacing: .2em; text-transform: uppercase; margin-bottom: 14px;
}
.bind__side--challenger .bind__label { color: var(--flame-600); }
.bind__side--sponsor    .bind__label { color: var(--brass-600); }
.bind__side h3 { font-family: var(--mincho); font-weight: 900; font-size: 30px; margin-bottom: 16px; }
.bind__side p { color: var(--text-muted); font-size: 16px; }

/* 2枚をまたぐリング。左右のカードに少しかかることで「綴じている」ように見せる */
.bind__link {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2; pointer-events: none;
  line-height: 0;
}
.bind__rings { width: 212px; height: auto; }

/* ------------------------------------------------------------- case cards */
/* 2026.08 ユーザー指示：カードの高さを揃える。
   タイトル=2行固定（墨地に白文字）／タグ=2段固定／本文=4行固定／リンク=右下固定。
   はみ出した文字は「…」で切る。行数を変えるときは高さ（em）も一緒に直すこと。 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  position: relative; display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.case-card:hover, .case-card:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(12,16,23,.12);
  border-color: var(--ink);
}

/* --- タイトル（墨地・白文字・2行固定） */
.case-card__head {
  background: var(--ink); padding: 18px 22px;
  transition: background .3s var(--ease);
}
.case-card:hover .case-card__head,
.case-card:focus-within .case-card__head { background: var(--flame-700); }  /* 白文字で7.3:1 */
.case-card__head h3 {
  font-family: var(--mincho); font-weight: 900;
  font-size: 18px; line-height: 1.55; color: #fff;
  height: 3.1em;                       /* 2行ぶん */
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- 本文まわり */
.case-card__body { display: flex; flex-direction: column; flex: 1; padding: 16px 22px 16px; }
.case-card__tags {
  display: flex; flex-wrap: wrap; align-content: flex-start; gap: 6px;
  height: 60px; overflow: hidden;      /* 2段ぶん */
  margin-bottom: 12px;
}
.case-card__tag, .case-card__form {
  font-size: 11.5px; font-weight: 700; letter-spacing: .06em; line-height: 1.5;
  padding: 5px 10px; align-self: flex-start;
}
.case-card__tag  { color: var(--flame-700); background: var(--flame-100); }
.case-card__form { color: var(--brass-700); background: var(--brass-100); }
.case-card p {
  color: var(--text-muted); font-size: 14.5px; line-height: 1.8;
  height: 7.2em;                       /* 4行ぶん */
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical;
  overflow: hidden;
}
.case-card__foot { margin-top: auto; padding-top: 14px; display: flex; justify-content: flex-end; }
.case-card__foot .tlink { font-size: 14.5px; }
.case-card a.stretched::after { content: ""; position: absolute; inset: 0; }

/* ------------------------------------------------------------ 特長（主張） */
/* 情報の優先順位：主文（.claim）＞ 副文（.claim__sub）＞ 補足（.note）。
   比較（.note）を大きくすると「クラファン／VCの一種」に見えてしまうため、
   このサイズ差は意図的なもの。大きくしないこと。 */
.claim {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 6px solid var(--flame-500);
  padding: 60px 64px 52px;
}
.claim__lead {
  font-family: var(--mincho); font-weight: 900;
  font-size: clamp(22px, 3.0vw, 36px);
  line-height: 1.66; letter-spacing: .01em;
  text-align: center;        /* 2026.08 ユーザー指示：中央揃え */
  max-width: 27em; margin: 0 auto;
  word-break: auto-phrase;   /* 対応ブラウザでは文節で折り返す */
  line-break: strict;
}
.claim__lead .hl {
  color: var(--flame-700); font-weight: 900;
  /* 蛍光ペン風の下線。折り返しても行ごとにきれいに付く */
  background-image: linear-gradient(transparent 62%, rgba(212, 80, 31, .16) 62%);
}
.claim__chips {
  list-style: none; display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  margin-top: 38px; padding-top: 32px; border-top: 1px solid var(--line);
}
.claim__chips li {
  font-size: 14px; font-weight: 700; letter-spacing: .06em;
  color: var(--ink); background: var(--paper-2);
  padding: 10px 20px;
}
.claim__sub {
  margin-top: 20px; background: var(--ink); color: #fff;
  padding: 30px 40px;
  font-size: clamp(16.5px, 1.9vw, 21px); font-weight: 700; line-height: 1.75;
}
.claim__sub .hl { color: var(--brass-400); }

.notes { margin-top: 54px; }
.notes__title {
  display: flex; align-items: center; gap: 16px;
  font-size: 13.5px; font-weight: 700; color: var(--text-muted);
  letter-spacing: .06em; margin-bottom: 20px;
}
.notes__title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.note-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.note {
  background: var(--white); border: 1px solid var(--line);
  padding: 26px 26px 28px;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.note:hover { border-color: var(--flame-500); transform: translateY(-2px); }
.note__vs {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 2px;
  margin-bottom: 12px; line-height: 1.5;
}
.note__target { font-size: 15px; font-weight: 700; color: var(--ink); }
.note__suffix { font-size: 13.5px; font-weight: 700; color: var(--brass-700); }
.note p { font-size: 14.5px; color: var(--text-muted); line-height: 1.85; }

/* -------------------------------------------------------------- ストーリー */
.story { position: relative; }
/* 左の見出しブロックの上端を、右の本文の1行目に揃える（2026.08 ユーザー指示） */
.story__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.story__body p { margin-bottom: 22px; font-size: 16.5px; }

/* ------------------------------------------------- 進め方（縦のフロー図） */
.flow { list-style: none; max-width: 880px; margin: 0; counter-reset: none; }
.flow__step {
  position: relative;
  display: grid; grid-template-columns: 86px 1fr; gap: 32px;
  padding-bottom: 46px;
}
.flow__step:last-child { padding-bottom: 0; }
/* 番号どうしを結ぶ縦線 */
.flow__step::before {
  content: ""; position: absolute; left: 42px; top: 92px; bottom: 4px;
  width: 2px; background: var(--brass-100);
  background-image: linear-gradient(var(--line) 60%, transparent 60%);
  background-size: 2px 12px;
}
/* 下向きの矢じり */
.flow__step::after {
  content: ""; position: absolute; left: 36px; bottom: 12px;
  width: 13px; height: 13px;
  border-right: 2px solid var(--flame-500); border-bottom: 2px solid var(--flame-500);
  transform: rotate(45deg);
}
.flow__step:last-child::before, .flow__step:last-child::after { display: none; }
.flow__rail { position: relative; z-index: 1; }
.flow__num {
  display: flex; align-items: center; justify-content: center;
  width: 86px; height: 86px; border-radius: 50%;
  border: 2px solid var(--flame-500); background: var(--white);
  font-family: var(--disp); font-weight: 900; font-size: 29px;
  color: var(--flame-600); letter-spacing: .02em;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.flow__step:hover .flow__num { background: var(--flame-600); color: #fff; border-color: var(--flame-600); }
.flow__body { padding-top: 12px; }
.flow__body h3 { font-family: var(--mincho); font-weight: 900; font-size: clamp(20px, 2.4vw, 26px); margin-bottom: 8px; }
.flow__meta {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--brass-700); background: var(--brass-100);
  padding: 5px 12px; margin-bottom: 14px;
}
.flow__body p:last-child { font-size: 15.5px; color: var(--text-muted); line-height: 1.9; }

/* ------------------------------------------------------------- 登録カード */
.entry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.entry {
  position: relative; overflow: hidden;
  background: var(--ink-2); border: 1px solid var(--line-on-ink);
  padding: 52px 46px 46px; display: flex; flex-direction: column;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.entry::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px;
  transition: width .35s var(--ease);
}
.entry--challenger::before { background: var(--flame-500); }
.entry--sponsor::before    { background: var(--brass-500); }
.entry:hover { transform: translateY(-4px); }
.entry--challenger:hover { border-color: var(--flame-500); }
.entry--sponsor:hover    { border-color: var(--brass-500); }
.entry:hover::before { width: 10px; }
.entry__en {
  font-family: var(--disp); font-weight: 900; font-size: 12px;
  letter-spacing: .2em; text-transform: uppercase; margin-bottom: 14px;
}
.entry--challenger .entry__en { color: var(--flame-400); }
.entry--sponsor    .entry__en { color: var(--brass-400); }
.entry h3 { font-family: var(--mincho); font-weight: 900; font-size: clamp(25px, 3vw, 33px); color: #fff; margin-bottom: 18px; }
.entry p { color: var(--on-ink); font-size: 15.5px; margin-bottom: 32px; }
.entry .btn { margin-top: auto; align-self: flex-start; }

/* -------------------------------------------------------------------- FAQ */
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 26px 44px 26px 0; position: relative;
  font-weight: 700; font-size: 17px; line-height: 1.7;
  display: flex; gap: 16px; align-items: flex-start;
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--flame-600); }
.faq-item summary::after {
  content: ""; position: absolute; right: 8px; top: 34px;
  width: 12px; height: 12px; border-right: 2px solid var(--flame-600);
  border-bottom: 2px solid var(--flame-600); transform: rotate(45deg);
  transition: transform .25s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(-135deg); top: 38px; }
.faq-q {
  font-family: var(--disp); font-weight: 900; color: var(--flame-600);
  font-size: 17px; flex: none; line-height: 1.55;
}
.faq-item__body { padding: 0 44px 30px 34px; color: var(--text-muted); font-size: 16px; }
.faq-item__tag { font-size: 12px; color: var(--brass-600); font-weight: 700; letter-spacing: .08em; margin-bottom: 8px; }

/* -------------------------------------------------------------- CTA 帯 */
.cta {
  background: var(--ink); color: #fff; padding: 96px 0; position: relative; overflow: hidden;
}
.cta::after {
  content: ""; position: absolute; right: -140px; bottom: -180px;
  width: 460px; height: 460px; border: 1px solid rgba(212,80,31,.35); border-radius: 50%;
}
.cta .container { position: relative; z-index: 1; text-align: center; }
.cta h2 { font-family: var(--mincho); font-weight: 900; font-size: clamp(24px, 3.6vw, 38px); line-height: 1.5; margin-bottom: 18px; }
.cta p { color: var(--on-ink); margin-bottom: 36px; }
.cta__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------------------------------------------------------------- 下層頭 */
.page-head { background: var(--ink); color: #fff; padding: 72px 0 66px; position: relative; overflow: hidden; }
.page-head::after {
  content: ""; position: absolute; right: -100px; top: -150px;
  width: 420px; height: 420px; border: 1px solid rgba(196,154,74,.30); border-radius: 50%;
}
.page-head .container { position: relative; z-index: 1; }
.page-head h1 { font-family: var(--mincho); font-weight: 900; font-size: clamp(28px, 4.4vw, 46px); line-height: 1.35; margin-bottom: 18px; }
.page-head p { color: var(--on-ink); max-width: 720px; }
.crumbs { display: flex; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--on-ink-2); margin-bottom: 22px; }
.crumbs a:hover { color: var(--flame-400); }
.crumbs span::before { content: "/"; margin-right: 10px; color: var(--line-on-ink); }
.crumbs a::before { content: "/"; margin-right: 10px; color: var(--line-on-ink); }
.crumbs :first-child::before { content: none; }

/* ------------------------------------------------------------- 記事本文 */
.article { background: var(--white); border: 1px solid var(--line); padding: 56px 60px; }
.article__meta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
.article__meta span {
  font-size: 12px; font-weight: 700; letter-spacing: .08em;
  background: var(--paper-2); color: var(--text-muted); padding: 6px 12px;
}
.article__lead {
  font-family: var(--mincho); font-weight: 700; font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.8; padding-bottom: 30px; margin-bottom: 34px; border-bottom: 2px solid var(--flame-500);
}
.rich h3 {
  font-family: var(--mincho); font-weight: 900; font-size: 22px;
  margin: 44px 0 16px; padding-left: 16px; border-left: 4px solid var(--flame-500);
}
.rich h3:first-child { margin-top: 0; }
.rich p { margin-bottom: 18px; }
.rich-list { list-style: none; margin: 0 0 20px; }
.rich-list li { position: relative; padding-left: 26px; margin-bottom: 10px; }
.rich-list li::before {
  content: ""; position: absolute; left: 2px; top: .72em;
  width: 9px; height: 9px; border: 2px solid var(--flame-500); border-radius: 50%;
}
.rich blockquote {
  margin: 24px 0; padding: 20px 24px; background: var(--paper);
  border-left: 4px solid var(--brass-500); color: var(--text-muted);
}
.article__note { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--text-muted); }

/* -------------------------------------------------------------- フォーム */
.form-wrap { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 40px; align-items: start; }
.card { background: var(--white); border: 1px solid var(--line); padding: 46px 48px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 26px; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid label,
.fieldset > legend {
  display: block; font-weight: 700; font-size: 14.5px; margin-bottom: 9px;
}
.req, .opt {
  font-size: 11px; font-weight: 700; letter-spacing: .06em;
  padding: 3px 8px; margin-left: 10px; vertical-align: 2px;
}
.req { background: var(--flame-600); color: #fff; }
.opt { background: var(--paper-2); color: var(--text-muted); }
.hint { display: block; font-weight: 400; font-size: 13px; color: var(--text-muted); margin: -4px 0 9px; }
input[type=text], input[type=email], input[type=tel], input[type=url],
input[type=password], select, textarea {
  width: 100%; font-family: var(--sans); font-size: 16px; color: var(--text);
  background: var(--paper); border: 1px solid var(--line); border-radius: 2px;
  padding: 13px 14px; transition: border-color .2s, box-shadow .2s;
}
textarea { min-height: 140px; resize: vertical; line-height: 1.8; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), linear-gradient(135deg, var(--text-muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px, 6px 6px; background-repeat: no-repeat; }
input[type=file] { width: 100%; font-size: 14px; padding: 12px; background: var(--paper); border: 1px dashed var(--line); border-radius: 2px; }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--flame-600); box-shadow: 0 0 0 3px rgba(176,58,25,.16);
}
a:focus-visible, button:focus-visible, summary:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--flame-500); outline-offset: 3px;
}
.fieldset { border: 0; padding: 0; margin: 0; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px 20px; }
.check {
  display: flex; align-items: flex-start; gap: 10px; font-weight: 400; font-size: 15px;
  margin: 0; cursor: pointer; line-height: 1.6;
}
.check input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--flame-600); flex: none; }
.form-foot { margin-top: 34px; padding-top: 28px; border-top: 1px solid var(--line); }
.form-consent { margin-bottom: 22px; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* 会員登録の入力エラー表示 */
.form-error {
  background: var(--flame-100); color: var(--flame-700);
  border-left: 4px solid var(--flame-600);
  padding: 14px 18px; margin-bottom: 26px;
  font-size: 15px; font-weight: 700; line-height: 1.7;
}
.form-error[hidden] { display: none; }

.side-note { background: var(--ink); color: #fff; padding: 34px 32px; }
.side-note h2 { font-family: var(--mincho); font-weight: 900; font-size: 19px; margin-bottom: 18px; color: #fff; }
.side-note ul { list-style: none; }
.side-note li { position: relative; padding-left: 20px; margin-bottom: 16px; font-size: 14px; color: var(--on-ink); line-height: 1.8; }
.side-note li::before { content: ""; position: absolute; left: 0; top: .7em; width: 7px; height: 7px; border-radius: 50%; background: var(--flame-500); }
.side-note .tlink { margin-top: 6px; font-size: 14px; }

/* ------------------------------------------------------------- 完了ページ */
.done { text-align: center; padding: 110px 0 120px; }
.done__mark { width: 76px; margin: 0 auto 30px; }
.done h1 { font-family: var(--mincho); font-weight: 900; font-size: clamp(26px, 3.6vw, 38px); margin-bottom: 20px; }
.done p { color: var(--text-muted); max-width: 620px; margin: 0 auto 36px; }

/* ------------------------------------------------------------------ 規約 */
.legal { background: var(--white); border: 1px solid var(--line); padding: 54px 58px; }
.legal h2 { font-family: var(--mincho); font-weight: 900; font-size: 22px; margin: 40px 0 14px; padding-left: 14px; border-left: 4px solid var(--flame-500); }
.legal h2:first-child { margin-top: 0; }
.legal p { margin-bottom: 16px; color: var(--text-muted); }
.legal ol { margin: 0 0 18px 1.3em; color: var(--text-muted); }
.legal li { margin-bottom: 8px; }
.legal .updated { font-size: 13.5px; color: var(--text-muted); margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); }

/* ---------------------------------------------------------------- footer */
.site-footer { background: var(--ink); color: var(--on-ink); padding: 72px 0 34px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid var(--line-on-ink); }
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p { font-size: 14px; color: var(--on-ink-2); line-height: 1.9; max-width: 380px; }
.footer-col h3 { font-family: var(--disp); font-weight: 800; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--brass-400); margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { font-size: 14.5px; color: var(--on-ink); transition: color .2s; }
.footer-col a:hover { color: var(--flame-400); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 26px; flex-wrap: wrap; font-size: 12.5px; color: var(--on-ink-2); }

/* ---------------------------------------------------------- reveal 演出 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn:hover, .case-card:hover, .entry:hover, .diff:hover { transform: none; }
}

/* ------------------------------------------------------------ responsive */
@media (max-width: 1080px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .note-grid { grid-template-columns: 1fr; }
  .story__grid { grid-template-columns: 1fr; gap: 32px; align-items: start; }
  .form-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  :root { --header-h: 72px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    background: var(--ink); flex-direction: column; align-items: stretch;
    gap: 0; padding: 12px 0 26px; display: none;
    border-bottom: 1px solid var(--line-on-ink);
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 16px 32px; font-size: 16px; }
  .nav-cta { margin: 14px 32px 0; text-align: center; }
  .bind { grid-template-columns: 1fr; gap: 96px; }
  .bind__rings { width: 176px; transform: rotate(90deg); }
  .entry-grid { grid-template-columns: 1fr; }
  section { padding: 76px 0; }
  .article, .card, .legal { padding: 34px 24px; }
  .claim { padding: 34px 24px 30px; }
  .claim__sub { padding: 24px 24px; }
  .flow__step { grid-template-columns: 62px 1fr; gap: 20px; padding-bottom: 38px; }
  .flow__num { width: 62px; height: 62px; font-size: 22px; }
  .flow__step::before { left: 30px; top: 68px; }
  .flow__step::after { left: 24px; bottom: 10px; }
  .flow__body { padding-top: 4px; }
  .hero { padding-top: 68px; }
  .hero__note { margin-bottom: 46px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .container, .container-narrow { padding: 0 20px; }
  .case-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .check-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 34px; }
  .hero-actions .btn { width: 100%; }
  .entry { padding: 38px 26px 34px; }
  .entry .btn { align-self: stretch; padding: 16px 18px; font-size: 15px; }
  .claim__chips li { font-size: 13px; padding: 8px 14px; }
  .brand { --brand-w: 186px; }
  .brand__mark { width: 40px; }
  .brand__sub { font-size: 9.5px; }
  .hero__rings { right: -240px; width: 520px; height: 520px; }
}

/* ------------------------------------------- ログイン・マイページ（会員機能） */

/* 保存成功などの前向きな知らせ。エラー表示と対になる真鍮色 */
.form-ok {
  background: var(--brass-100); color: var(--brass-700);
  border-left: 4px solid var(--brass-500);
  padding: 14px 18px; margin-bottom: 26px;
  font-size: 15px; font-weight: 700; line-height: 1.7;
}
.form-ok[hidden] { display: none; }

.account-card { max-width: 640px; margin: 0 auto 28px; }
.account-h {
  font-family: var(--mincho); font-weight: 900; font-size: 21px;
  margin-bottom: 14px; line-height: 1.5;
}
.hint-block {
  font-size: 14px; color: var(--text-muted); line-height: 1.9; margin-bottom: 22px;
}
.account-links {
  margin-top: 20px; text-align: center; font-size: 14px; color: var(--text-muted);
}
.account-links a, .linklike {
  color: var(--flame-600); font-weight: 700; text-decoration: underline;
  background: none; border: 0; padding: 0; font: inherit; cursor: pointer;
}
.account-links a:hover, .linklike:hover { color: var(--flame-700); }

.mypage-loading { text-align: center; color: var(--text-muted); padding: 60px 0; }

.mypage-status {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  max-width: 640px; margin: 0 auto 24px; padding: 22px 24px;
  background: var(--ink); color: #fff;
}
.mypage-kind {
  font-family: var(--mincho); font-weight: 900; font-size: 19px; color: #fff;
  margin-top: 6px;
}
.mypage-meta { font-size: 13px; color: var(--brass-400); margin-top: 6px; }
.status-chip {
  flex: none; background: var(--brass-500); color: var(--ink);
  font-size: 13px; font-weight: 700; padding: 7px 14px; white-space: nowrap;
}
.status-chip[hidden] { display: none; }

/* すでに登録済みの方に見せる案内（登録セクション・CTA帯の差し替え） */
.member-banner {
  max-width: 640px; margin: 0 auto; padding: 34px 32px; text-align: center;
  background: rgba(255,255,255,.06); border: 1px solid var(--line-on-ink);
}
.member-banner h3 {
  font-family: var(--mincho); font-weight: 900; font-size: 21px; color: #fff;
  margin-bottom: 12px;
}
.member-banner p { color: var(--on-ink); font-size: 15px; margin-bottom: 22px; }
.member-banner[hidden] { display: none; }

.nav-login { font-size: 14px; }

@media (max-width: 720px) {
  .mypage-status { flex-direction: column; align-items: flex-start; }
  .member-banner { padding: 28px 22px; }
}

/* hidden 属性を必ず効かせる（.entry-grid のような display 指定に負けないように） */
[hidden] { display: none !important; }

/* 変更できない欄（ログインIDなど）は、見た目でもそうと分かるようにする */
.account-card input[readonly] {
  background: var(--paper-2); color: var(--text-muted); cursor: not-allowed;
}