/* =========================================
   AIDB サービスページ専用スタイル
   方針: AIDB本来のブランド（warm / gold パレット、明朝見出し）
   MAXISコーポレートの style.css とは独立させている
   ========================================= */

:root {
  /* 色の定義：アプリの warm / gold パレットと紹介資料の配色に準拠 */
  --bg: #FAF8F5;
  --surface: #FFFDF9;
  --surface-2: #F1EBE2;
  --ink: #1A1614;
  --body: #4E463F;
  --muted: #6B625A;
  --line: #E3D9CB;
  --accent: #8A6A2F;      /* 明るい面での金（文字用） */
  --gold: #C9A45C;        /* 暗い面・帯での金 */
  --night: #1A1614;
  --night-2: #241F1B;
  --night-ink: #F3EDE4;
  --night-body: #CFC6BA;
  --night-line: #3F3832;
  --focus: #B08040;
  --serif: "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", system-ui, sans-serif;
  --latin: "Cormorant Garamond", Georgia, "Times New Roman", serif;
}

/* ダークモード */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #171311; --surface: #1F1A17; --surface-2: #26201C;
    --ink: #F3EDE4; --body: #CFC6BA; --muted: #A89E91; --line: #3A332D;
    --accent: #D4B87A; --gold: #C9A45C;
    --night: #0F0C0B; --night-2: #1C1714; --night-line: #3A332D;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
h1, h2 { font-family: var(--serif); font-weight: 700; text-wrap: balance; line-height: 1.45; }
h3 { font-size: 1.125rem; line-height: 1.5; text-wrap: balance; }
a { color: inherit; }
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: 24px; }
section { padding-block: 104px; }

/* 固定ヘッダーにページ内リンクの見出しが隠れないようにする */
section[id] { scroll-margin-top: 68px; }

.eyebrow {
  font-family: var(--latin); font-size: 0.95rem; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--accent);
}
.sec-head { display: grid; gap: 14px; max-width: 720px; margin-bottom: 56px; }
.sec-head h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
.sec-head p { color: var(--body); }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; justify-content: center;
  font: 700 0.95rem/1 var(--sans); letter-spacing: 0.06em; text-decoration: none;
  padding: 16px 28px; border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn-gold { background: var(--gold); color: #1A1614; }
.btn-gold:hover { background: #D4B87A; transform: translateY(-1px); }
.btn-ghost { border-color: var(--night-line); color: var(--night-ink); background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--night) 92%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--night-line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.logo { display: flex; align-items: baseline; gap: 12px; text-decoration: none; color: var(--night-ink); }
.logo b { font-family: var(--latin); font-size: 1.75rem; font-weight: 600; letter-spacing: 0.14em; }
.logo span { font-size: 0.7rem; letter-spacing: 0.18em; color: var(--night-body); }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--night-body); text-decoration: none; font-size: 0.875rem; }
.nav a:hover { color: var(--gold); }
.nav .btn { padding: 11px 20px; font-size: 0.85rem; color: #1A1614; }

/* ---------- ヒーロー ---------- */
.hero { background: var(--night); color: var(--night-ink); padding-block: 88px 104px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 56px; align-items: center; }
.hero .eyebrow { color: var(--gold); }
.hero h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); line-height: 1.5; margin-block: 20px 24px; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero-lead { color: var(--night-body); max-width: 34em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-note { margin-top: 18px; font-size: 0.8rem; color: var(--night-body); }

/* 製品画面のモック（サンプルデータ） */
.mock {
  background: #FAF8F5; color: #1A1614; border-radius: 14px; overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,.45); border: 1px solid #3F3832;
  display: grid; grid-template-columns: 132px 1fr; font-size: 12px; line-height: 1.6;
}
.mock-side { background: #1A1614; padding: 16px 12px; display: grid; align-content: start; gap: 4px; }
.mock-side b { font-family: var(--latin); color: #F3EDE4; font-size: 18px; letter-spacing: .12em; margin: 0 6px 12px; }
.mock-side span { color: #A89E91; padding: 6px 8px; border-radius: 6px; }
.mock-side span.on { background: #2A2420; color: #C9A45C; }
.mock-main { padding: 18px; display: grid; gap: 12px; min-width: 0; }
.mock-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; flex-wrap: wrap; }
.mock-top h4 { margin: 0; font-size: 15px; }
.mock-top small { color: #7C7870; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: #F5EDD9; color: #7A5020; white-space: nowrap; }
.pill i { width: 6px; height: 6px; border-radius: 50%; background: #B08040; }
.mock-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; }
.mock-card { background: #FFFDF9; border: 1px solid #E8E3DC; border-radius: 8px; padding: 9px 10px; min-width: 0; }
.mock-card p { font-weight: 700; display: flex; justify-content: space-between; align-items: center; gap: 4px; }
.mock-card .bar { height: 5px; border-radius: 3px; background: #E8E3DC; margin-top: 6px; }
.mock-card .bar.s { width: 62%; margin-top: 4px; }
.mock-card.locked { border-color: #D4B87A; background: #FBF6EA; }
.mock-card.locked em { font-style: normal; font-size: 10px; color: #7A5020; display: inline-flex; gap: 3px; align-items: center; }
.mock-map { background: #1A1614; color: #F3EDE4; border-radius: 8px; padding: 12px 14px; display: grid; gap: 8px; }
.mock-map header { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.mock-map header b { font-family: var(--serif); font-size: 14px; }
.mock-map header small { color: #C9A45C; font-size: 10px; }
.mock-map ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.mock-map li { font-size: 10.5px; font-weight: 700; background: #C9A45C; color: #1A1614; padding: 2px 10px; border-radius: 999px; }
.mock-ltv { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; background: #FFFDF9; border: 1px solid #E8E3DC; border-radius: 8px; padding: 9px 12px; }
.mock-ltv b { font-size: 12px; }
.mock-ltv span { font-size: 11px; color: #7C7870; }
.mock-ltv strong { color: #7A5020; font-size: 13px; }
.mock-caption { font-size: 0.75rem; color: var(--night-body); margin-top: 12px; text-align: right; }

/* 読み込み時に調査結果が埋まっていく演出（初期状態でも全て表示済み） */
@media (prefers-reduced-motion: no-preference) {
  .mock-card { animation: fill .7s ease both; }
  .mock-card:nth-child(1) { animation-delay: .2s; }
  .mock-card:nth-child(2) { animation-delay: .35s; }
  .mock-card:nth-child(3) { animation-delay: .5s; }
  .mock-card:nth-child(4) { animation-delay: .65s; }
  .mock-card:nth-child(5) { animation-delay: .8s; }
  .mock-card:nth-child(6) { animation-delay: .95s; }
  .mock-map { animation: fill .8s ease 1.2s both; }
  .mock-ltv { animation: fill .8s ease 1.5s both; }
  @keyframes fill { from { opacity: .35; transform: translateY(4px); } to { opacity: 1; transform: none; } }
}

/* ---------- 課題 ---------- */
.problems { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.problem { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 32px; display: grid; gap: 10px; align-content: start; }
.problem h3 { font-size: 1.2rem; }
.problem p { color: var(--body); font-size: 0.95rem; }

/* ---------- 帯 ---------- */
.band { background: var(--gold); color: #1A1614; padding-block: 88px; }
.band h2 { font-size: clamp(1.7rem, 4vw, 2.7rem); line-height: 1.6; }
.band p { margin-top: 20px; font-size: 1.05rem; max-width: 36em; }

/* ---------- 仕組み：3層 → 攻略マップ ---------- */
.layers { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.layer { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 28px; display: grid; gap: 8px; align-content: start; }
.layer .who { font-size: 0.8rem; font-weight: 700; color: var(--accent); letter-spacing: .08em; }
.layer h3 { font-family: var(--serif); font-size: 1.4rem; }
.layer p { color: var(--body); font-size: 0.92rem; }
.converge { display: block; width: 100%; height: 72px; color: var(--accent); }
.map-card { background: var(--night); color: var(--night-ink); border-radius: 16px; padding: 36px 40px; display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.6fr); gap: 32px; align-items: center; }
.map-card h3 { font-family: var(--serif); font-size: 1.7rem; }
.map-card > div > p { color: var(--night-body); margin-top: 8px; font-size: 0.95rem; }
.map-card .eyebrow { color: var(--gold); }
.map-items { list-style: none; padding: 0; display: grid; }
.map-items li { display: grid; grid-template-columns: 11em 1fr; gap: 16px; padding-block: 12px; border-top: 1px solid var(--night-line); font-size: 0.93rem; }
.map-items li:first-child { border-top: 0; }
.map-items b { color: var(--gold); }
.map-items span { color: var(--night-body); }

/* ---------- 機能 ---------- */
.features { background: var(--surface-2); }
.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; padding-block: 48px; border-top: 1px solid var(--line); }
.feature:first-of-type { border-top: 0; padding-top: 0; }
.feature-text { display: grid; gap: 14px; }
.step-tag { font-family: var(--latin); font-size: 1rem; font-weight: 600; letter-spacing: .2em; color: var(--accent); }
.feature-text h3 { font-family: var(--serif); font-size: clamp(1.35rem, 2.6vw, 1.75rem); line-height: 1.5; }
.feature-text p { color: var(--body); }
.checks { list-style: none; padding: 0; display: grid; gap: 8px; margin-top: 6px; }
.checks li { display: flex; gap: 10px; align-items: baseline; color: var(--body); font-size: 0.95rem; }
.checks li::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 2px; background: var(--gold); transform: translateY(-1px); }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 24px; display: grid; gap: 12px; }
.panel-title { font-size: 0.8rem; font-weight: 700; color: var(--muted); letter-spacing: .08em; }
.topics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }
.topic { border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 0.85rem; display: grid; gap: 2px; }
.topic b { font-size: 0.92rem; }
.topic span { color: var(--muted); font-size: 0.78rem; line-height: 1.5; }
.topic.lock { border-color: var(--gold); background: color-mix(in srgb, var(--gold) 10%, var(--surface)); }
.lock-note { display: flex; gap: 12px; align-items: center; font-size: 0.88rem; color: var(--body); background: var(--surface-2); border-radius: 10px; padding: 12px 14px; }
.lock-note svg { flex: none; color: var(--accent); }

/* 人物相関図の簡易図 */
.relation svg { width: 100%; height: auto; display: block; }
.relation .node rect { fill: var(--surface); stroke: var(--line); }
.relation .node.key rect { fill: var(--night); stroke: var(--night); }
.relation .node text { fill: var(--ink); font-size: 12px; font-family: var(--sans); }
.relation .node.key text { fill: var(--night-ink); }
.relation .edge { stroke: var(--accent); stroke-width: 1.5; fill: none; }
.relation .edge.weak { stroke-dasharray: 4 4; opacity: .7; }
.relation .edge-label { fill: var(--accent); font-size: 10px; font-family: var(--sans); }
.relation .org { stroke: var(--muted); stroke-width: 1.2; fill: none; opacity: .55; }
.relation .arrow-head { fill: var(--accent); }
.relation .badge rect { fill: var(--surface-2); stroke: var(--accent); stroke-width: 1; }
.relation .badge text { fill: var(--accent); font-size: 9.5px; font-weight: 700; font-family: var(--sans); }
.relation .badge.dm rect { fill: var(--gold); stroke: var(--gold); }
.relation .badge.dm text { fill: #1A1614; }
.relation .legend text { fill: var(--muted); font-size: 10px; font-family: var(--sans); }
/* 部門グループ枠と兼務（アプリの部門枠表示に準拠） */
.relation .group text { fill: var(--muted); font-size: 10px; font-weight: 700; font-family: var(--sans); letter-spacing: .06em; }
.relation .group.hq rect { fill: color-mix(in srgb, var(--accent) 7%, transparent); stroke: color-mix(in srgb, var(--accent) 40%, transparent); }
.relation .group.dev rect { fill: color-mix(in srgb, #0F766E 8%, transparent); stroke: color-mix(in srgb, #0F766E 45%, transparent); }
.relation .group.buy rect { fill: color-mix(in srgb, #4A6FA5 8%, transparent); stroke: color-mix(in srgb, #4A6FA5 45%, transparent); }
.relation .badge.kenmu rect { fill: var(--surface); stroke: var(--muted); stroke-dasharray: 3 2; }
.relation .badge.kenmu text { fill: var(--body); }
.relation .kenmu-line { stroke: var(--muted); stroke-width: 1.4; stroke-dasharray: 2 3; fill: none; }
.relation .kenmu-head { fill: var(--muted); }
/* 人物相関図のスタンス色（アプリの凡例と同じ色） */
.st-champion { fill: #047857; } .st-favorable { fill: #34D399; } .st-neutral { fill: #A8A39C; } .st-opposed { fill: #E11D48; }

/* LTVポテンシャルマップの簡易表 */
.ltv-head { background: var(--night); color: var(--night-ink); border-radius: 10px; padding: 14px 16px; font-size: 0.88rem; line-height: 1.7; }
.ltv-head b { color: var(--gold); font-family: var(--serif); font-size: 1.05rem; }
.ltv-scroll { overflow-x: auto; }
.ltv { width: 100%; border-collapse: collapse; font-size: 0.82rem; min-width: 360px; }
.ltv th, .ltv td { border-top: 1px solid var(--line); padding: 9px 8px; text-align: left; vertical-align: top; }
.ltv thead th { border-top: 0; color: var(--muted); font-size: 0.75rem; font-weight: 700; }
.ltv tbody th { font-weight: 700; }
.ltv tbody th small { display: block; color: var(--muted); font-weight: 400; font-size: 0.72rem; }
.ltv td b { display: block; font-variant-numeric: tabular-nums; }
.ltv td.empty { color: var(--muted); }
.st { display: inline-block; font-size: 0.68rem; font-weight: 700; padding: 1px 8px; border-radius: 999px; margin-top: 3px; }
.st.c { background: var(--surface-2); color: var(--body); border: 1px solid var(--line); }
.st.n { background: color-mix(in srgb, #0F766E 16%, var(--surface)); color: color-mix(in srgb, #0F766E 70%, var(--ink)); }
.st.f { background: color-mix(in srgb, #059669 16%, var(--surface)); color: color-mix(in srgb, #047857 70%, var(--ink)); }
.frameworks { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }
.fw { border: 1px solid var(--line); border-radius: 10px; padding: 16px 14px; display: grid; gap: 4px; }
.fw b { font-family: var(--latin); font-size: 1.9rem; font-weight: 600; line-height: 1; color: var(--accent); }
.fw span { font-size: 0.82rem; color: var(--body); line-height: 1.6; }
.draft { display: grid; gap: 0; }
.draft div { display: grid; grid-template-columns: 9.5em 1fr; gap: 12px; padding-block: 10px; border-top: 1px solid var(--line); font-size: 0.88rem; }
.draft div:first-child { border-top: 0; }
.draft b { color: var(--ink); }
.draft span { color: var(--muted); }
.review-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 0.82rem; color: var(--muted); }
.review-row .mini { background: var(--night); color: var(--night-ink); border-radius: 999px; padding: 6px 14px; font-weight: 700; }

/* ---------- 選ばれる理由 ---------- */
.reasons { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0; border-top: 1px solid var(--line); }
.reason { padding: 32px 32px 32px 0; border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; }
.reason:nth-child(even) { padding-left: 32px; border-left: 1px solid var(--line); }
.reason h3 { font-family: var(--serif); font-size: 1.35rem; }
.reason p { color: var(--body); font-size: 0.95rem; }

/* ---------- 導入で変わること ---------- */
.shift { background: var(--night); color: var(--night-ink); }
.shift .eyebrow { color: var(--gold); }
.shift-list { display: grid; }
.shift-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 32px; align-items: center; padding-block: 28px; border-top: 1px solid var(--night-line); }
.shift-row:last-child { border-bottom: 1px solid var(--night-line); }
.shift-row p:first-child { font-family: var(--serif); font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; color: var(--gold); display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.shift-row p:first-child s { text-decoration: none; color: var(--night-body); font-weight: 400; }
.shift-row p:last-child { color: var(--night-body); }

/* ---------- 始め方 ---------- */
.flow { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; counter-reset: step; }
.flow li { counter-increment: step; display: grid; gap: 10px; align-content: start; padding-top: 24px; border-top: 2px solid var(--ink); }
.flow li::before { content: "STEP " counter(step); font-family: var(--latin); font-weight: 600; letter-spacing: .2em; color: var(--accent); }
.flow h3 { font-family: var(--serif); font-size: 1.3rem; }
.flow p { color: var(--body); font-size: 0.95rem; }

/* ---------- よくある質問 ---------- */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font-weight: 700; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-family: var(--latin); font-size: 1.6rem; color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--body); padding-bottom: 24px; max-width: 46em; }

/* 公開前に差し替える仮置きの文言 */
.tbd { color: #C2410C; font-weight: 700; }

/* ---------- CTA ---------- */
.cta { background: var(--night); color: var(--night-ink); }
.cta .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.cta .eyebrow { color: var(--gold); }
.cta h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); margin-block: 16px 20px; }
.cta-lead { color: var(--night-body); }
/* デモ依頼の案内カード（フォームはMAXISのお問い合わせページで受け付ける） */
.cta-card { background: var(--night-2); border: 1px solid var(--night-line); border-radius: 16px; padding: 32px; display: grid; gap: 18px; }
.cta-card h3 { font-family: var(--serif); font-size: 1.3rem; }
.cta-card .checks li { color: var(--night-body); }
.cta-card .btn { width: 100%; }

/* ---------- フッター ---------- */
footer { background: var(--night); color: var(--night-body); border-top: 1px solid var(--night-line); padding-block: 32px; font-size: 0.8rem; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer b { font-family: var(--latin); color: var(--night-ink); letter-spacing: .14em; font-size: 1rem; margin-right: 10px; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--night-body); text-decoration: none; }
footer a:hover { color: var(--gold); }

/* ---------- レスポンシブ ---------- */
@media (max-width: 920px) {
  .hero .wrap, .feature, .cta .wrap, .map-card { grid-template-columns: minmax(0, 1fr); }
  .feature { gap: 28px; }
  .nav a:not(.btn) { display: none; }
}

@media (max-width: 720px) {
  section { padding-block: 72px; }
  .wrap { padding-inline: 16px; }
  .problems, .layers, .reasons, .flow { grid-template-columns: minmax(0, 1fr); }
  .reason, .reason:nth-child(even) { padding: 24px 0; border-left: 0; }
  .converge { height: 48px; }
  .map-card { padding: 28px 22px; }
  .map-items li, .draft div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .shift-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .mock { grid-template-columns: minmax(0, 1fr); }
  .mock-side { display: none; }
  .mock-grid, .topics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .frameworks { grid-template-columns: minmax(0, 1fr); }
  .logo span { display: none; }
  .cta-card { padding: 22px; }
}