/* ============================================================
   KOSO Corporate Site — Global Stylesheet v2
   Direction: KOKUYO参考 — 余白・抑制されたタイポグラフィ・フラット
   Palette: 青・緑・白のみ（文字・ボタン・図形）
   Display: Zen Kaku Gothic New Bold（差し替え可）
   ============================================================ */

:root {
  /* Base（白） */
  --white:  #FFFFFF;
  --ivory:  #FFFFFF;            /* 旧トークン互換 */
  --cream:  #FFFFFF;            /* 旧トークン互換 */
  --mint:   #EEF5F0;            /* ごく淡い緑 */
  --leaf:   #E2EEE6;            /* 淡い緑 */
  --sky:    #EAF1F8;            /* ごく淡い青 */
  --field:  #F5F7F5;            /* 入力欄 */
  --line:   #DCE6DF;            /* 罫線（緑系グレー） */

  /* 青・緑 */
  --blue:   #2E5FA3;            /* アクション（ボタン・リンク） */
  --blue-d: #244C85;
  --green:  #2E5A3E;            /* 見出し */
  --green-2:#3E7050;
  --ink:    #2F473A;            /* 本文（緑系ダーク） */
  --muted:  #6E8377;            /* 補足（緑系グレー） */
  --fuva:    #003E34;           /* Fuva.チームカラー（深緑） */
  --vu:      #A1D8E6;           /* V-Unitedイメージカラー（明るい青） */
  --vu-tint: #E6F4F9;           /* V-United淡背景 */
  --vu-ink:  #1C4956;           /* V-Unitedカラー上の文字色 */

  --radius-l: 20px;
  --radius-m: 14px;
  --radius-s: 8px;

  --font-display: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-ui: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-en: "Quicksand", sans-serif;

  --w-max: 1120px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 2.1;
  font-size: 15px;
  letter-spacing: .04em;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-2); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.wrap { max-width: var(--w-max); margin: 0 auto; padding: 0 28px; }

/* 見出しまわり — サイズの種類を絞る（英字ラベル / 見出し / 本文の3段） */
.eyebrow {
  font-family: var(--font-en);
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  font-size: .72rem;
  color: var(--green-2);
  display: block;
  margin: 0 0 2em;
}
h1, h2, h3 { font-family: var(--font-display); color: var(--green); line-height: 1.6; letter-spacing: .05em; font-weight: 700; }
h2.sec-title { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 1.3em; }
.sec-lead { max-width: 640px; margin: 0; }

section { padding: 160px 0; }
@media (max-width: 720px) { section { padding: 92px 0; } }

/* ---------- Buttons（フラット・影なし） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .88rem;
  padding: .95em 2.2em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background .25s ease, color .25s ease, border-color .25s ease;
  line-height: 1.5;
  letter-spacing: .06em;
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: #22452F; }
.btn-deep { background: var(--green-2); color: #fff; }
.btn-deep:hover { background: var(--green); }
.btn-ghost { background: var(--white); color: var(--green); border-color: var(--green); }
.btn-ghost:hover { background: var(--mint); }
.ext::after { content: "↗"; font-size: .85em; }

/* ---------- Line button（テキスト＋丸囲み矢印＋下線） ---------- */
.btn-line {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: .86rem;
  letter-spacing: .16em;
  color: var(--green);
  text-decoration: none;
  padding: .8em 2px 1em;
  transition: color .25s ease;
}
.btn-line::after { /* ボタン全体の下線（両端に少しはみ出す） */
  content: "";
  position: absolute;
  left: -12px;
  right: -12px;
  bottom: 0;
  height: 1px;
  background: var(--green);
  transition: background .25s ease;
}
.btn-circle { /* 丸囲みの矢印 */
  position: relative;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--green);
  border-radius: 50%;
  background: var(--mint);
  transition: background .3s ease, transform .3s ease;
}
.btn-circle::before { /* ＞ 型の矢印 */
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid var(--green);
  border-right: 1.5px solid var(--green);
  transform: translate(-65%, -50%) rotate(45deg);
  transition: border-color .3s ease;
}
.btn-line:hover { color: #22452F; }
.btn-line:hover::after { background: #22452F; }
.btn-line:hover .btn-circle { background: var(--green); transform: translateX(4px); }
.btn-line:hover .btn-circle::before { border-color: #fff; }
.hero-cta.hero-cta-lines { gap: 22px 56px; align-items: center; }

/* ---------- ヒーローのマスコット（ぺんポメ）: フロー配置で全幅崩れなし ---------- */
.hero-lead-row {
  display: flex;
  align-items: flex-end;
  gap: 32px;
}
.hero-lead-row .lead { flex: 1 1 auto; }
.hero-mascots {
  flex: none;
  margin-left: auto;
  margin-bottom: -52px; /* ボタン列との間の余白へ少し食い込ませる（モックアップの位置） */
  pointer-events: none;
}
.hero-mascots img { width: 215px; height: auto; }
@media (max-width: 1180px) { .hero-mascots img { width: 180px; } .hero-mascots { margin-bottom: -40px; } }
@media (max-width: 860px) {
  .hero-lead-row { flex-direction: column; align-items: flex-start; gap: 24px; }
  .hero-mascots { margin: 0; }
  .hero-mascots img { width: 150px; }
}

/* ---------- 手書きイラスト ---------- */
.doodle { display: flex; justify-content: center; margin-top: 88px; }
.about .doodle { margin-top: 28px; justify-content: flex-start; }
.about .doodle img { width: min(520px, 82%); }
.footer-mascots { display: flex; justify-content: center; margin: 64px 0 8px; }
.footer-mascots img { width: 190px; height: auto; }
.doodle img { width: min(620px, 88%); height: auto; }
.doodle-hero { justify-content: flex-start; margin-top: 68px; }
.doodle-hero img { width: min(440px, 78%); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled { background: rgba(255,255,255,.97); }
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.brand img { height: 24px; width: auto; }
.gnav { display: flex; align-items: center; gap: 2px; }
.gnav a {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: .86rem;
  color: var(--ink);
  text-decoration: none;
  padding: .5em .9em;
  transition: color .2s ease;
  white-space: nowrap;
  letter-spacing: .05em;
}
.gnav a:hover { color: var(--green); }
.header-cta { display: flex; gap: 10px; }
.header-cta .btn { padding: .55em 1.4em; font-size: .8rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 44px; height: 44px;
  cursor: pointer;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 10px; right: 10px;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { top: -8px; left: 0; right: 0; }
.nav-toggle span::after { top: 8px; left: 0; right: 0; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(8px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 1080px) {
  .nav-toggle { display: block; }
  .gnav, .header-cta { display: none; }
  .nav-open .mobile-menu { transform: translateX(0); visibility: visible; }
}
.mobile-menu {
  position: fixed;
  top: 76px; right: 0; bottom: 0;
  width: min(320px, 86vw);
  background: var(--white);
  border-left: 1px solid var(--line);
  transform: translateX(105%);
  visibility: hidden;
  transition: transform .35s ease, visibility .35s;
  padding: 28px 26px 40px;
  overflow-y: auto;
  z-index: 99;
}
.mobile-menu a {
  display: block;
  font-family: var(--font-ui);
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  padding: .85em .2em;
  border-bottom: 1px solid var(--line);
  font-size: .95rem;
}
.mobile-menu .btn { margin-top: 18px; width: 100%; border-bottom: none; }
/* メニュー内ボタン: 共通リンクスタイルの上書きを解除して中央揃え・正しい配色に */
.mobile-menu a.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 1em 1.2em;
}
.mobile-menu a.btn-primary { background: var(--green); color: #fff; }
.mobile-menu a.btn-ghost { color: var(--green); border: 1px solid var(--green); }
@media (min-width: 1081px) { .mobile-menu { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(96vh, 920px);
  display: flex;
  align-items: center;
  padding: 190px 0 130px;
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media video, .hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(255,255,255,.72) 0%, rgba(255,255,255,.55) 45%, rgba(255,255,255,.98) 100%);
}
.hero-inner { position: relative; }
.hero h1 {
  font-size: clamp(1.9rem, 4.8vw, 3.2rem);
  margin: 0 0 1.7em;
  color: var(--green);
  line-height: 1.7;
}
.hero .lead {
  max-width: 560px;
  font-size: .92rem;
  margin: 0;
  color: var(--ink);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 76px; }
.hero-sub-links { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 52px; font-family: var(--font-ui); }
.hero-sub-links a {
  font-weight: 500;
  font-size: .84rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
}
.hero-sub-links a:hover { color: var(--green); border-color: var(--green); }
.hero-scroll {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-en); font-size: .66rem; letter-spacing: .3em; color: var(--muted);
  writing-mode: vertical-rl;
}

/* ---------- Scroll reveal（控えめ） ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- 番号ラベル（絵文字の代替） ---------- */
.pillar-num, .uc-num {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--green-2);
  flex: none;
}
.uc-num { display: block; margin-bottom: 18px; }
.uc-num::after { content: ""; display: block; width: 22px; height: 1px; background: var(--green-2); margin-top: 10px; }

/* ---------- About ---------- */
.about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 104px; align-items: start; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; gap: 44px; } }
.about-pillars { display: grid; }
.pillar {
  padding: 26px 8px;
  display: flex;
  gap: 24px;
  align-items: baseline;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.pillar:first-child { border-top: 1px solid var(--line); }
.pillar:hover { background: var(--mint); }
.pillar h3 { margin: 0; font-size: 1rem; }
.pillar p { margin: 2px 0 0; font-size: .82rem; color: var(--muted); line-height: 1.8; }
.pillar-icon { display: none; } /* 旧要素の保険 */

/* ---------- Business ---------- */
.business { background: var(--mint); }
.biz-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 88px; }
@media (max-width: 860px) { .biz-cards { grid-template-columns: 1fr; } }
.biz-card {
  border-radius: var(--radius-l);
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--white);
  border: 1px solid var(--line);
}
@media (max-width: 620px) { .biz-card { padding: 40px 28px; } }
.biz-card .logo-row img { height: 30px; width: auto; }
.biz-card.fuva .logo-row img { height: 44px; }
.biz-type { font-family: var(--font-en); font-weight: 600; font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin: 0; }
.biz-vision {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--green);
  padding: 0 0 0 18px;
  border-left: 2px solid var(--green);
  margin: 10px 0;
  line-height: 1.9;
}
.biz-card p.desc { margin: 0; font-size: .9rem; flex: 1; }
.biz-card .btn { align-self: flex-start; margin-top: 14px; }
.biz-card.fuva .biz-vision { border-color: var(--fuva); color: var(--fuva); }
.biz-card.fuva .btn { background: var(--fuva); color: #fff; }
.biz-card.vunited .biz-vision { border-color: var(--blue); color: var(--blue); }
.biz-card.vunited .btn { background: var(--blue); color: #fff; }
.biz-card.vunited .btn:hover { background: var(--blue-d); }

/* ---------- AIVTuber section ---------- */
.aiv { background: var(--white); }
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 92px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
@media (max-width: 960px) { .usecase-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .usecase-grid { grid-template-columns: 1fr; } }
.usecase {
  background: var(--white);
  padding: 44px 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.usecase h3 { margin: 0 0 .6em; font-size: 1rem; }
.usecase p { margin: 0; font-size: .86rem; line-height: 2; }
.aiv-cta-row { margin-top: 84px; display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Characters ---------- */
.characters { background: var(--vu-tint); overflow: hidden; }
.characters .sec-title, .characters .chara-name { color: var(--blue); }
.vu-mark { display: flex; justify-content: center; margin: 0 0 30px; }
.vu-mark img { height: 42px; width: auto; }
.characters .eyebrow, .vu-page .eyebrow { color: var(--blue); }
.vu-page .uc-num { color: var(--blue); }
.vu-page .uc-num::after { background: var(--blue); }
.vu-page .backlink, .vu-page a { color: var(--blue); }
.chara-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 92px; }
@media (max-width: 860px) { .chara-grid { grid-template-columns: 1fr; } }
.chara-card {
  border-radius: var(--radius-l);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
}
.chara-visual { position: relative; }
.chara-visual img { width: 100%; height: auto; display: block; aspect-ratio: 16 / 9; object-fit: cover; }
.chara-card.vtuber .btn { background: var(--blue); color: #fff; }
.chara-card.vtuber .btn:hover { background: var(--blue-d); }
.chara-body { padding: 36px 40px 44px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
@media (max-width: 620px) { .chara-body { padding: 28px 24px 36px; } }
.chara-tag {
  align-self: flex-start;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  padding: .35em 1.2em;
  border-radius: 999px;
  border: 1px solid;
}
.chara-card.aivtuber .chara-tag { color: var(--blue); border-color: var(--blue); }
.chara-card.aivtuber .btn { background: var(--blue); color: #fff; }
.chara-card.aivtuber .btn:hover { background: var(--blue-d); }
.chara-card.vtuber .chara-tag { color: #fff; border-color: var(--blue); background: var(--blue); }
.chara-name { font-size: 1.4rem; margin: .2em 0 0; }
.chara-copy { font-family: var(--font-display); font-weight: 700; color: var(--blue); margin: 0; font-size: .9rem; }
.chara-desc { margin: .4em 0 0; font-size: .88rem; flex: 1; }
.chara-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; align-items: center; }
.sns-stub {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid; place-items: center;
  color: var(--muted);
  font-family: var(--font-en);
  font-size: .66rem;
  font-weight: 600;
  text-decoration: none;
}
.chara-links .btn { padding: .6em 1.5em; font-size: .8rem; }

/* ---------- News（KOKUYO風の罫線リスト） ---------- */
.news { background: var(--white); }
.news-list { margin-top: 76px; border-top: 1px solid var(--line); }
.news-item {
  display: flex;
  gap: 28px;
  align-items: baseline;
  padding: 26px 8px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: background .2s ease;
  flex-wrap: wrap;
}
.news-item:hover { background: var(--mint); }
.news-date { font-family: var(--font-en); font-weight: 500; color: var(--muted); font-size: .82rem; flex: none; min-width: 84px; }
.news-cat {
  flex: none;
  font-size: .68rem;
  font-weight: 500;
  color: var(--green-2);
  border: 1px solid var(--green-2);
  padding: .15em 1em;
  border-radius: 999px;
}
.news-title { font-weight: 400; font-size: .92rem; }
.news-more { margin-top: 40px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--green);
  border-radius: var(--radius-l);
  padding: 116px 48px;
  text-align: center;
}
@media (max-width: 620px) { .cta-band { padding: 64px 24px; } }
.cta-band h2 { font-size: clamp(1.3rem, 2.6vw, 1.8rem); margin: 0 0 1em; color: #fff; }
.cta-band p { max-width: 600px; margin: 0 auto; color: rgba(255,255,255,.86); font-size: .9rem; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 48px; }
.cta-band .btn-primary { background: #fff; color: var(--green); }
.cta-band .btn-primary:hover { background: var(--mint); }
.cta-band .btn-deep { background: var(--mint); color: var(--green); }
.cta-band .btn-deep:hover { background: #fff; }
.cta-band .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.cta-band .btn-ghost:hover { background: rgba(255,255,255,.1); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 60px;
  background: var(--white);
  border-top: 1px solid var(--line);
  padding: 88px 0 44px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 52px;
}
@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { height: 26px; width: auto; margin-bottom: 20px; }
.footer-brand p { font-size: .82rem; margin: 0; max-width: 320px; color: var(--muted); line-height: 2; }
.footer-col h3 {
  font-family: var(--font-en);
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--green-2);
  margin: 0 0 18px;
  font-weight: 600;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col a { text-decoration: none; color: var(--ink); font-size: .86rem; }
.footer-col a:hover { color: var(--green); }
.footer-bottom {
  margin-top: 72px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .74rem;
  color: var(--muted);
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  padding: 190px 0 80px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin: 0 0 .6em; }
.page-hero .lead { max-width: 680px; font-size: .92rem; }

/* ---------- V-United LP ---------- */
.vu-hero {
  position: relative;
  padding: 200px 0 110px;
  background: linear-gradient(180deg, var(--white) 0%, var(--vu-tint) 100%);
  overflow: hidden;
}
.vu-page h1, .vu-page h2, .vu-page h3, .vu-page .chara-name { color: var(--blue); }
.vu-hero .vu-logo { height: clamp(42px, 6.5vw, 64px); width: auto; margin-bottom: 34px; }
.vu-hero h1 { font-size: clamp(1.6rem, 4vw, 2.5rem); margin: 0 0 .7em; }
.wwd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 72px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
@media (max-width: 900px) { .wwd-grid { grid-template-columns: 1fr; } }
.wwd-card {
  background: var(--white);
  padding: 52px 40px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.wwd-card h3 { margin: 0 0 .6em; font-size: 1.05rem; }
.wwd-card p { margin: 0; font-size: .88rem; line-height: 2; }
.usecase-list { margin: 56px 0 0; padding: 0; list-style: none; max-width: 720px; border-top: 1px solid var(--line); }
.usecase-list li {
  padding: 18px 8px;
  border-bottom: 1px solid var(--line);
  font-size: .9rem;
  display: flex;
  gap: 16px;
  align-items: baseline;
}
.usecase-list li::before {
  content: "—";
  color: var(--blue);
  flex: none;
}

/* ---------- Forms ---------- */
.form-wrap {
  max-width: 720px;
  margin: 0 auto;
  background: var(--white);
  padding: 24px 0 0;
}
.form-field { margin-bottom: 34px; }
.form-field > label, .form-field > .field-label {
  display: block;
  font-family: var(--font-ui);
  font-weight: 700;
  margin-bottom: 10px;
  font-size: .9rem;
  color: var(--green);
}
.req {
  display: inline-block;
  color: var(--green-2);
  border: 1px solid var(--green-2);
  font-size: .64rem;
  border-radius: 999px;
  padding: .05em .9em;
  margin-left: .8em;
  vertical-align: middle;
  font-weight: 500;
  background: var(--white);
}
.opt { color: var(--muted); border-color: var(--muted); }
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%;
  font: inherit;
  padding: .85em 1.1em;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--field);
  color: var(--ink);
  transition: border-color .2s ease, background .2s ease;
}
input:focus, select:focus, textarea:focus { border-color: var(--green); background: var(--white); outline: none; }
textarea { min-height: 150px; resize: vertical; }
.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 620px) { .check-grid { grid-template-columns: 1fr; } }
.check-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  padding: .7em 1.1em;
  cursor: pointer;
  font-size: .88rem;
  transition: border-color .2s ease, background .2s ease;
}
.check-pill:hover { border-color: var(--green); }
.check-pill input { accent-color: var(--green); width: 17px; height: 17px; flex: none; }
.check-pill:has(input:checked) { background: var(--mint); border-color: var(--green); }
.agree-row { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; }
.agree-row input { accent-color: var(--green); width: 19px; height: 19px; margin-top: .35em; flex: none; }
.form-error { color: #B0472F; font-size: .8rem; margin-top: 8px; display: none; }
.form-field.invalid .form-error { display: block; }
.form-field.invalid input, .form-field.invalid textarea, .form-field.invalid select { border-color: #B0472F; }
.form-success { display: none; text-align: center; padding: 60px 20px; }
.form-success.show { display: block; }
.form-success .bubble-ok {
  width: 72px; height: 72px;
  margin: 0 auto 26px;
  border-radius: 50%;
  border: 1px solid var(--green);
  color: var(--green);
  display: grid; place-items: center;
  font-size: 1.8rem;
}
.form-submit-row { text-align: center; margin-top: 48px; }
.form-network-error { color: #B0472F; font-size: .85rem; margin-top: 16px; display: none; }
.form-network-error.show { display: block; }

/* ---------- News article ---------- */
.article { max-width: 720px; margin: 0 auto; padding: 24px 0 0; }
.article h1 { font-size: clamp(1.35rem, 2.8vw, 1.8rem); line-height: 1.8; }
.article .meta { display: flex; gap: 16px; align-items: center; color: var(--muted); font-size: .82rem; margin-bottom: 32px; }
.article p { font-size: .94rem; }
.article h2 { font-size: 1.05rem; }

/* ---------- Company ---------- */
.mission-band {
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 88px 48px;
  text-align: center;
  background: var(--white);
}
@media (max-width: 620px) { .mission-band { padding: 56px 22px; } }
.mission-band .mission {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  color: var(--green);
  margin: .3em 0 .8em;
  letter-spacing: .06em;
}
.mission-band p { color: var(--muted); font-size: .88rem; margin: 0; }
.company-table { width: 100%; border-collapse: collapse; margin-top: 56px; border-top: 1px solid var(--line); }
.company-table th, .company-table td { text-align: left; padding: 22px 12px; border-bottom: 1px solid var(--line); font-size: .9rem; vertical-align: top; }
.company-table th { width: 180px; font-family: var(--font-ui); color: var(--green); font-weight: 700; }
@media (max-width: 620px) {
  .company-table th, .company-table td { display: block; width: 100%; }
  .company-table th { padding-bottom: 4px; border-bottom: none; }
  .company-table td { padding-top: 0; }
}
.exec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 56px; }
@media (max-width: 720px) { .exec-grid { grid-template-columns: 1fr; } }
.exec-card { border-top: 2px solid var(--green); padding: 28px 4px 0; }
.exec-card .role { font-family: var(--font-en); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: var(--green-2); font-weight: 600; }
.exec-card h3 { margin: .4em 0 .6em; font-size: 1.2rem; }
.exec-card p { margin: 0; font-size: .86rem; color: var(--muted); }

/* ---------- Misc ---------- */
.backlink { display: inline-flex; align-items: center; gap: .4em; text-decoration: none; font-size: .86rem; font-weight: 500; font-family: var(--font-ui); color: var(--green-2); }
.center { text-align: center; }
.mt-l { margin-top: 56px; }
.sp-only { display: none; }
@media (max-width: 720px) { .sp-only { display: inline; } }

/* ---------- V-United LP: 青系統に全面切り替え ---------- */
.vu-page {
  --green: var(--blue);     /* 見出し・強調 → 青 */
  --green-2: var(--blue);   /* ラベル・リンク → 青 */
  --mint: var(--sky);       /* 淡緑背景 → 淡青 */
  --leaf: #D8E6F4;
  --line: #D9E3EF;          /* 罫線 → 青グレー */
  --ink: #36455B;           /* 本文 → 青系ダーク */
  --muted: #6E7F96;         /* 補足 → 青グレー */
  --field: #F3F6FA;
  color: var(--ink);
}
/* ボタンは全て #2E5FA3 × 白文字 */
.vu-page .btn { background: var(--blue); color: #fff; border-color: var(--blue); }
.vu-page .btn:hover { background: var(--blue-d); color: #fff; }
/* CTAバンドは淡青背景＋青見出し（青ボタンが見えるように） */
.vu-page .cta-band { background: var(--sky); }
.vu-page .cta-band h2 { color: var(--blue); }
.vu-page .cta-band p { color: var(--ink); }


/* ---------- レスポンシブ調整（スマホ・タブレット） ---------- */
@media (max-width: 720px) {
  .hero { padding: 130px 0 90px; min-height: 0; }
  .hero h1 { margin-bottom: 1.2em; }
  .hero-cta { margin-top: 44px; }
  .hero-cta.hero-cta-lines { gap: 18px 40px; }
  .hero-sub-links { margin-top: 36px; }
  .doodle-hero { margin-top: 44px; }
  .doodle-hero img { width: min(320px, 82%); }
  .hero-scroll { display: none; }
  .eyebrow { margin: 0 0 1.4em; }
  h2.sec-title { margin: 0 0 1em; }
  .about-grid { gap: 36px; }
  .biz-cards, .usecase-grid, .chara-grid { margin-top: 52px; }
  .news-list { margin-top: 48px; }
  .aiv-cta-row { margin-top: 52px; }
  .cta-band { padding: 72px 24px; }
  .cta-buttons { margin-top: 36px; }
  .vu-hero { padding: 140px 0 80px; }
  .page-hero { padding: 140px 0 56px; }
  .wwd-grid, .usecase-list { margin-top: 52px; }
  .footer-mascots { margin: 44px 0 8px; }
  .footer-mascots img { width: 150px; }
  .vu-mark img { height: 34px; }
  .form-field { margin-bottom: 26px; }
}
@media (max-width: 400px) {
  .btn-line { font-size: .8rem; letter-spacing: .1em; }
  .btn { padding: .9em 1.7em; font-size: .84rem; }
}