/* =========================================================
   KATA Corporate Site — Design System (WHITE base)
   Adapted from skill: jp-business-proposal-white
   - 白キャンバス + シアンアクセント1色（#38BDF8系）
   - BIZ UDPGothic / charcoal text (#0E1B29)
   - シグネチャモチーフ：タイトル左のシアン縦バー / 60×3px水色短線 / 1px区切り線
   - 青字下線禁止。強調は水色短線 or 太字濃色。
   ========================================================= */

:root { --has-biz-udp: "BIZ UDPGothic"; }

/* ---- Design Tokens（スキル chrome.css 準拠）---- */
:root {
  /* Text */
  --text-strong:  #0E1B29;  /* タイトル・強調（チャコール）*/
  --text-body:    #465C69;  /* 本文 */
  --text-caption: #646E8B;  /* キャプション・補足 */

  /* Cyan accent（1色運用）*/
  --cyan-strong: #036591;   /* eyebrow / 小見出し */
  --cyan-deep:   #0369A1;   /* アクセント濃 */
  --cyan:        #37B7F7;   /* アクセント中 */
  --cyan-light:  #38BDF8;   /* アクセント明（短線・縦バー）*/
  --cyan-pale:   #7DD3FC;   /* アクセント薄 */
  --cyan-sub:    #0284C7;   /* サブタイトル等 */

  /* Surfaces */
  --bg:          #FFFFFF;
  --bg-soft:     #F8FAFC;
  --bg-highlight:#F0F9FF;
  --bg-dark:     #0F172A;   /* ダークパネル（CTA帯など）*/

  /* Lines */
  --line:        #E2E8F0;
  --line-strong: #CBD5E1;

  --maxw: 1180px;
  --gap: 24px;
  --radius: 4px;            /* スキルはほぼ角ばり。控えめに */
  --bar-w: 4px;             /* シアン縦バー（accent-rail）*/

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-body);
  font-family: "BIZ UDPGothic", "BIZ UDPGothicJP", "Hiragino Kaku Gothic ProN",
               "Hiragino Sans", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.02em;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.4; letter-spacing: 0.01em; color: var(--text-strong); }
p { margin: 0; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 40px;
}

/* =========================================================
   Header / Global Nav（白・1px区切りのchrome）
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.brand {
  display: inline-flex;
  align-items: center;
}
.brand .brand-logo {
  display: block;
  width: auto;
  object-fit: contain;
}
.brand-horizontal .brand-logo { height: 30px; }
.brand-vertical .brand-logo { height: 64px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-links a {
  font-size: 14px;
  color: var(--text-body);
  transition: color 0.2s var(--ease);
  position: relative;
  padding: 6px 0;
}
.nav-links a:hover { color: var(--text-strong); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--cyan-light);
  transition: width 0.25s var(--ease);
}
.nav-links a:hover::after { width: 100%; }

.nav-links a.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cyan-deep);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 22px;
  border-radius: var(--radius);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-links a.nav-cta:hover { transform: translateY(-1px); background: var(--cyan-sub); color: #FFFFFF; }
.nav-links a.nav-cta::after { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text-strong);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   共通：セクション / アクションタイトル + シアン縦バー
   ========================================================= */
.section { padding: 100px 0; }
.section--alt { background: var(--bg-soft); border-block: 1px solid var(--line); }

/* eyebrow：大文字英字・letter-spacing 0.2em・シアン */
.eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan-strong);
  margin-bottom: 14px;
}

/* アクションタイトル（結論先出し）+ シアン縦バー（accent-rail） */
.action-title {
  position: relative;
  padding-left: 22px;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.4;
  color: var(--text-strong);
  margin-bottom: 14px;
}
.action-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  bottom: 0.12em;
  width: var(--bar-w);
  background: var(--cyan-light);
}
/* セクション見出し直後の eyebrow をタイトル下に置くパターン */
.section-head .eyebrow.under {
  margin: 0 0 0 22px;
  display: block;
}
.section-lead {
  color: var(--text-body);
  max-width: 820px;
  font-size: 19px;
  line-height: 1.7;
}
.section-head { margin-bottom: 48px; }
/* タイトル下の1px区切り線（chrome-divider相当） */
.head-divider {
  height: 1px;
  background: var(--line);
  margin: 24px 0 28px;
}

/* 60×3px 水色短線（シグネチャモチーフ） */
.cyan-tick {
  width: 60px;
  height: 3px;
  background: var(--cyan-light);
  margin: 22px 0;
}

/* =========================================================
   Hero（白・大きなタイトル・短線モチーフ・CLIENT×PARTNER風eyebrow）
   ========================================================= */
.hero {
  position: relative;
  padding: 110px 0 96px;
  background:
    linear-gradient(180deg, var(--bg-highlight) 0%, var(--bg) 60%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(60% 70% at 82% 18%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(60% 70% at 82% 18%, #000 0%, transparent 72%);
  opacity: 0.7;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-eyebrow {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--cyan-strong);
  margin-bottom: 8px;
}
.hero .hero-tick { width: 64px; height: 3px; background: var(--cyan-light); margin: 18px 0 30px; }
.hero h1 {
  font-size: clamp(40px, 7.6vw, 88px);
  line-height: 1.22;
  letter-spacing: 0.005em;
  color: var(--text-strong);
  margin-bottom: 28px;
}
.hero h1 .accent { color: var(--cyan-deep); }
.hero-lead {
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--text-strong);
  max-width: 720px;
  margin-bottom: 20px;
  line-height: 1.5;
}
.hero-sub {
  font-size: clamp(18px, 2.1vw, 23px);
  color: var(--text-body);
  max-width: 640px;
  margin-bottom: 40px;
  line-height: 1.65;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  padding: 15px 30px;
  border-radius: var(--radius);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--cyan-deep);
  color: #FFFFFF;
  box-shadow: 0 12px 26px -14px rgba(3,105,161,0.7);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--cyan-sub); box-shadow: 0 18px 34px -14px rgba(3,105,161,0.6); }
.btn-ghost {
  background: #FFFFFF;
  color: var(--text-strong);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--cyan-light); color: var(--cyan-deep); }
.btn .arrow { transition: transform 0.2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* =========================================================
   Problem（課題提起）
   ========================================================= */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.problem-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px 30px 32px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.problem-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.problem-card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -28px rgba(14,27,41,0.35); }
.problem-card .pc-no {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan-strong);
  margin-bottom: 14px;
}
.problem-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--text-strong); }
.problem-card p { font-size: 15px; color: var(--text-body); }

/* =========================================================
   Solution（KATAの解）
   ========================================================= */
.solution-wrap {
  display: block;
}
.solution-statement {
  font-size: clamp(23px, 3vw, 30px);
  line-height: 1.6;
  font-weight: 700;
  color: var(--text-strong);
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}
.solution-statement .accent { color: var(--cyan-deep); }
.solution-points-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--cyan-deep);
  text-align: center;
  margin-bottom: 18px;
}
.solution-points { display: grid; gap: 18px; }
.solution-points--pair { grid-template-columns: repeat(2, 1fr); }
.solution-point {
  display: flex;
  gap: 18px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
}
.solution-point .sp-icon {
  flex: none;
  width: 46px; height: 46px;
  border-radius: var(--radius);
  background: var(--bg-highlight);
  color: var(--cyan-deep);
  display: grid; place-items: center;
  border: 1px solid var(--cyan-pale);
}
.solution-point h4 { font-size: 17px; margin-bottom: 6px; color: var(--text-strong); }
.solution-point p { font-size: 15px; color: var(--text-body); }

/* WHAT WE DO — 全幅の結論ブロック */
.solution-conclusion {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-top: 22px;
  background: var(--bg-highlight);
  border: 1px solid var(--cyan-pale);
  border-radius: var(--radius);
  padding: 28px 32px;
}
.solution-conclusion .sc-icon {
  flex: none;
  width: 52px; height: 52px;
  border-radius: var(--radius);
  background: #FFFFFF;
  color: var(--cyan-deep);
  display: grid; place-items: center;
  border: 1px solid var(--cyan-pale);
}
.solution-conclusion .sc-body h4 {
  font-size: 20px;
  margin-bottom: 6px;
  color: var(--text-strong);
}
.solution-conclusion .sc-body h4 .sc-eq { color: var(--cyan-deep); margin-right: 4px; }
.solution-conclusion .sc-body p { font-size: 15px; color: var(--text-body); }

/* WHAT WE DO — 締め強調1行 */
.solution-closing {
  margin-top: 28px;
  padding: 22px 28px;
  border-left: 3px solid var(--cyan-deep);
  background: var(--bg-highlight);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: clamp(16px, 1.7vw, 19px);
  font-weight: 700;
  line-height: 1.7;
  color: var(--text-strong);
}

/* =========================================================
   Functions（提供機能の俯瞰 8機能グリッド）
   ========================================================= */
.func-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.func-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  overflow: hidden;
}
.func-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 0; height: var(--bar-w);
  background: var(--cyan-light);
  transition: width 0.3s var(--ease);
}
.func-card:hover { transform: translateY(-4px); border-color: var(--cyan-pale); box-shadow: 0 18px 40px -26px rgba(14,27,41,0.3); }
.func-card:hover::before { width: 100%; }
.func-card .fc-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius);
  background: var(--bg-highlight);
  color: var(--cyan-deep);
  display: grid; place-items: center;
  border: 1px solid var(--cyan-pale);
  margin-bottom: 18px;
}
.func-card .fc-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan-strong);
  display: block;
  margin-bottom: 8px;
}
.func-card h3 { font-size: 17px; margin-bottom: 10px; color: var(--text-strong); }
.func-card p { font-size: 14px; color: var(--text-body); line-height: 1.7; }
.func-note {
  margin-top: 28px;
  font-size: 14.5px;
  color: var(--text-caption);
  border-left: var(--bar-w) solid var(--cyan-light);
  padding-left: 16px;
}

/* =========================================================
   Process（進め方の型）
   ========================================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.process-step {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px 28px;
}
.process-step .ps-num {
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--cyan-strong);
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.process-step .ps-num span {
  width: 34px; height: 34px;
  border: 1px solid var(--cyan-pale);
  background: var(--bg-highlight);
  border-radius: var(--radius);
  display: grid; place-items: center;
  color: var(--cyan-deep);
}
.process-step h3 { font-size: 18px; margin-bottom: 10px; color: var(--text-strong); }
.process-step p { font-size: 14.5px; color: var(--text-body); }
.process-step::after {
  content: "→";
  position: absolute;
  right: -16px; top: 50%;
  transform: translateY(-50%);
  color: var(--line-strong);
  font-size: 20px;
  z-index: 2;
}
.process-step:last-child::after { display: none; }

/* =========================================================
   Works（実績・信頼の証）— 5層カード言語
   ========================================================= */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}
.work-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 34px 32px 36px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.work-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.work-card:hover { transform: translateY(-3px); box-shadow: 0 20px 44px -28px rgba(14,27,41,0.32); }
.work-card .wc-cat {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan-strong);
  margin-bottom: 12px;
}
.work-card h3 { font-size: 21px; margin-bottom: 16px; color: var(--text-strong); }
.work-card .wc-divider { height: 1px; background: var(--line); margin: 18px 0; }
.work-card .wc-row { margin-bottom: 14px; }
.work-card .wc-row:last-child { margin-bottom: 0; }
.work-card .wc-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-caption);
  display: block;
  margin-bottom: 4px;
}
.work-card .wc-text { font-size: 15px; color: var(--text-body); }
.trust-note {
  margin-top: 28px;
  font-size: 13.5px;
  color: var(--text-caption);
}

/* =========================================================
   Closing CTA（白基調パネルで締める＝chromeのlight-panel）
   ========================================================= */
.cta-band {
  position: relative;
  border-radius: var(--radius);
  background: var(--bg-highlight);
  border: 1px solid var(--line);
  padding: 66px 56px;
  text-align: center;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  left: 50%; top: 40px;
  transform: translateX(-50%);
  width: 64px; height: 3px;
  background: var(--cyan);
}
.cta-band h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.4;
  margin: 28px 0 18px;
  color: var(--text-strong);
}
.cta-band p { color: var(--text-body); max-width: 580px; margin: 0 auto 32px; font-size: 17px; }
.cta-band .hero-actions { justify-content: center; }
.cta-band .btn-ghost { background: #FFFFFF; color: var(--text-strong); border-color: var(--line-strong); }
.cta-band .btn-ghost:hover { border-color: var(--cyan-deep); color: var(--cyan-deep); }

/* =========================================================
   Footer（白・1px区切りのchrome-footer rail）
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 60px 0 36px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 44px;
  margin-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p { font-size: 14px; color: var(--text-caption); max-width: 340px; }
.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-caption);
  margin-bottom: 16px;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a, .footer-col span { font-size: 14.5px; color: var(--text-body); transition: color 0.2s var(--ease); }
.footer-col a:hover { color: var(--cyan-deep); }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-caption);
}

/* =========================================================
   Sub-page hero（会社概要・お問い合わせ・プライバシー）
   ========================================================= */
.page-hero {
  padding: 76px 0 52px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-highlight) 0%, var(--bg) 100%);
  position: relative;
}
.page-hero .eyebrow { margin-bottom: 12px; }
.page-hero h1 {
  position: relative;
  padding-left: 22px;
  font-size: clamp(30px, 4.6vw, 50px);
  color: var(--text-strong);
}
.page-hero h1::before {
  content: "";
  position: absolute;
  left: 0; top: 0.1em; bottom: 0.1em;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.page-hero p { color: var(--text-body); margin-top: 16px; max-width: 760px; font-size: 18px; }

/* =========================================================
   Company page
   ========================================================= */
.profile-table {
  width: 100%;
  border-collapse: collapse;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.profile-table th, .profile-table td {
  text-align: left;
  padding: 19px 26px;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  vertical-align: top;
}
.profile-table tr:last-child th, .profile-table tr:last-child td { border-bottom: 0; }
.profile-table th {
  width: 210px;
  color: var(--text-strong);
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--bg-soft);
}
.profile-table td { color: var(--text-body); }
.profile-table td a { color: var(--cyan-deep); font-weight: 700; }

.story {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 44px;
}
.story::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.story h3 { font-size: 22px; margin-bottom: 18px; color: var(--text-strong); }
.story p { color: var(--text-body); margin-bottom: 18px; font-size: 16px; }
.story p:last-child { margin-bottom: 0; }

.mvv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}
.mvv-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 30px;
}
.mvv-card .mvv-key {
  font-size: 13px; font-weight: 700; letter-spacing: 0.2em; color: var(--cyan-strong); margin-bottom: 12px; display: block;
}
.mvv-card h3 { font-size: 22px; margin-bottom: 12px; color: var(--text-strong); }
.mvv-card .mvv-tick { width: 60px; height: 3px; background: var(--cyan-light); margin: 0 0 16px; }
.mvv-card p { color: var(--text-body); font-size: 15.5px; }

/* =========================================================
   Contact page
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 48px;
  align-items: start;
}
.form-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 38px 42px;
}
.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 8px;
}
.field label .req {
  color: #FFFFFF;
  background: var(--cyan-deep);
  font-size: 11px;
  margin-left: 8px;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 3px;
  vertical-align: middle;
}
.field label .opt {
  color: var(--text-caption);
  font-size: 12px;
  margin-left: 8px;
  font-weight: 400;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text-strong);
  padding: 13px 15px;
  font-family: inherit;
  font-size: 16px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: #94A3B8; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  background: #FFFFFF;
  border-color: var(--cyan-light);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.18);
}
.field textarea { resize: vertical; min-height: 140px; }
.field select { appearance: none; cursor: pointer; }
.form-submit { width: 100%; justify-content: center; }
.form-note { font-size: 13px; color: var(--text-caption); margin-top: 16px; line-height: 1.7; }
.form-note a { color: var(--cyan-deep); font-weight: 700; }

.contact-aside .info-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px 28px 30px;
  margin-bottom: 20px;
}
.contact-aside .info-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.contact-aside .info-card h3 { font-size: 17px; margin-bottom: 14px; color: var(--text-strong); }
.contact-aside .info-card p { font-size: 14.5px; color: var(--text-body); margin-bottom: 8px; }
.contact-aside .info-card a { color: var(--cyan-deep); font-weight: 700; }
.contact-aside .mail-big {
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.thanks {
  display: none;
  position: relative;
  background: var(--bg-highlight);
  border: 1px solid var(--cyan-pale);
  border-radius: var(--radius);
  padding: 28px 30px 28px 34px;
  margin-bottom: 24px;
}
.thanks::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.thanks.is-visible { display: block; }
.thanks h3 { color: var(--cyan-deep); font-size: 19px; margin-bottom: 8px; }
.thanks p { color: var(--text-body); font-size: 15px; }

/* =========================================================
   Privacy / Legal page
   ========================================================= */
.legal-note {
  position: relative;
  background: var(--bg-highlight);
  border: 1px solid var(--cyan-pale);
  border-radius: var(--radius);
  padding: 18px 22px 18px 26px;
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 40px;
}
.legal-note::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.legal-body { max-width: 860px; }
.legal-body .lead { color: var(--text-body); margin-bottom: 36px; font-size: 16px; }
.legal-body h2 {
  position: relative;
  padding-left: 18px;
  font-size: 21px;
  color: var(--text-strong);
  margin: 42px 0 16px;
}
.legal-body h2::before {
  content: "";
  position: absolute;
  left: 0; top: 0.18em; bottom: 0.18em;
  width: var(--bar-w);
  background: var(--cyan-light);
}
.legal-body p { color: var(--text-body); margin-bottom: 14px; font-size: 16px; }
.legal-body ul, .legal-body ol { color: var(--text-body); padding-left: 22px; margin-bottom: 16px; font-size: 16px; }
.legal-body ul { list-style: disc; }
.legal-body ol { list-style: decimal; }
.legal-body li { margin-bottom: 8px; }
.legal-body blockquote {
  border-left: 3px solid var(--line-strong);
  margin: 16px 0;
  padding: 6px 18px;
  color: var(--text-caption);
  font-size: 14px;
}
.legal-body a { color: var(--cyan-deep); font-weight: 700; }
.legal-meta {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--text-caption);
  font-size: 15px;
}

/* =========================================================
   Motion（控えめなフェードイン / reduced-motion対応）
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .container { padding: 0 28px; }
  .solution-points--pair { grid-template-columns: 1fr; }
  .solution-conclusion { flex-direction: column; text-align: center; }
  .func-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step::after { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }
  .hero { padding: 80px 0 68px; }
  .nav-links {
    position: fixed;
    top: 70px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px -22px rgba(14,27,41,0.3);
    padding: 12px 24px 24px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
  }
  .nav-links.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-links a:last-of-type { border-bottom: 0; }
  .nav-links .nav-cta { margin-top: 12px; justify-content: center; color: #FFFFFF; }
  .nav-toggle { display: flex; }
  .problem-grid { grid-template-columns: 1fr; }
  .func-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .mvv-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .cta-band { padding: 46px 26px; }
  .story { padding: 28px 24px; }
  .form-card { padding: 26px 22px 30px; }
  .profile-table th { width: 130px; padding: 14px 16px; font-size: 14px; }
  .profile-table td { padding: 14px 16px; font-size: 14px; }
}