/* ==========================================================================
   Japan BESS Management Center Inc. — 共通スタイル
   株式会社日本蓄電所管理センター
   配色は ScienceX（Navy #1B2A4A / Gold #C49A3C）とは別系統。
   管理会社としての中立性を配色で示すため、深緑＋ウォームグレーを基調とする。
   ========================================================================== */

:root {
  /* 深緑 — 保安・インフラの信頼色 */
  --ink-deep: #0E3D21;
  --ink:      #14532D;
  --ink-2:    #2F6B46;
  --ink-pale: #EAF1EC;

  /* ブロンズ — 差し色。文字用は AA を満たす濃い方を使う */
  --bronze:      #B08D57;   /* 面（CTA背景・罫） */
  --bronze-text: #8A6A3B;   /* 文字・ラベル */
  --bronze-pale: #FBF6EC;

  /* ニュートラル */
  --paper:  #FFFFFF;
  --cream:  #F7F6F3;
  --cream-2:#EFEDE7;
  --line:   #E3E0D9;
  --text:   #3A3A38;
  --text-2: #6B6A65;
  --text-3: #97958E;

  --font-sans:  "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;

  --wrap: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--paper);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* ---------- セクション見出し ---------- */
.sec { padding: 84px 0; }
.sec.cream { background: var(--cream); }
.sec.ink { background: var(--ink); color: #fff; }
.sec.tight { padding: 56px 0; }

.eyebrow {
  font-size: .7rem; font-weight: 600; letter-spacing: .22em;
  text-transform: uppercase; color: var(--bronze-text); margin-bottom: 14px;
}
.sec.ink .eyebrow { color: #D9BC8B; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; color: var(--ink); line-height: 1.5; }
.sec.ink h1, .sec.ink h2, .sec.ink h3 { color: #fff; }

h2.sec-title { font-size: clamp(1.5rem, 3.4vw, 2.05rem); margin-bottom: 18px; letter-spacing: .01em; }
h3.sub-title { font-size: clamp(1.1rem, 2.2vw, 1.3rem); margin-bottom: 12px; }

.lede { font-size: .98rem; color: var(--text-2); max-width: 680px; }
.sec.ink .lede { color: rgba(255,255,255,.8); }

/* ---------- ページヘッダー（下層共通） ---------- */
.pagehead {
  background: linear-gradient(155deg, var(--ink-deep) 0%, var(--ink) 62%, #1C6339 100%);
  color: #fff; padding: 66px 0 58px; position: relative; overflow: hidden;
}
.pagehead::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 380px; height: 380px; border-radius: 50%;
  background: rgba(176,141,87,.13);
}
.pagehead .eyebrow { color: #D9BC8B; position: relative; }
.pagehead h1 { color: #fff; font-size: clamp(1.7rem, 4.2vw, 2.45rem); position: relative; }
.pagehead p { color: rgba(255,255,255,.82); margin-top: 16px; max-width: 660px; font-size: .96rem; position: relative; }

/* ---------- パンくず ---------- */
.crumbs { background: var(--cream); border-bottom: 1px solid var(--line); font-size: .76rem; }
.crumbs .wrap { padding-top: 12px; padding-bottom: 12px; }
.crumbs a { color: var(--text-2); text-decoration: none; }
.crumbs a:hover { color: var(--ink); text-decoration: underline; }
.crumbs span { color: var(--text-3); }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 4px; text-decoration: none;
  font-size: .92rem; font-weight: 700; letter-spacing: .02em;
  transition: transform .2s, box-shadow .2s, background .2s; border: 1px solid transparent;
}
.btn-primary { background: var(--ink); color: #fff; box-shadow: 0 4px 16px rgba(20,83,45,.24); }
.btn-primary:hover { background: var(--ink-2); transform: translateY(-1px); box-shadow: 0 7px 22px rgba(20,83,45,.3); }
.btn-bronze { background: var(--bronze); color: #2A2118; box-shadow: 0 4px 16px rgba(176,141,87,.35); }
.btn-bronze:hover { background: #C29C63; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink-pale); }
.sec.ink .btn-ghost, .pagehead .btn-ghost { color: #fff; border-color: rgba(255,255,255,.55); }
.sec.ink .btn-ghost:hover, .pagehead .btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---------- カード ---------- */
.cards { display: grid; gap: 20px; }
.cards.c2 { grid-template-columns: repeat(2, 1fr); }
.cards.c3 { grid-template-columns: repeat(3, 1fr); }
.cards.c4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
  padding: 28px 26px; transition: box-shadow .25s, transform .25s;
}
.card.on-cream { background: var(--paper); }
.card:hover { box-shadow: 0 10px 30px rgba(24,40,30,.09); transform: translateY(-2px); }
.card h3 { font-size: 1.04rem; margin-bottom: 10px; }
.card p { font-size: .89rem; color: var(--text-2); line-height: 1.85; }
.card .card-no {
  font-family: var(--font-serif); font-size: .8rem; color: var(--bronze-text);
  letter-spacing: .16em; margin-bottom: 8px;
}
a.card { text-decoration: none; display: block; }
a.card .more { display: inline-block; margin-top: 14px; font-size: .82rem; font-weight: 600; color: var(--bronze-text); }

/* ---------- 数字ブロック ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.stat { background: var(--paper); padding: 30px 26px; }
.sec.ink .stats { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.18); }
.sec.ink .stat { background: var(--ink); }
.stat .n { font-family: var(--font-serif); font-size: clamp(1.7rem, 4vw, 2.3rem); font-weight: 700; color: var(--ink); line-height: 1.2; }
.sec.ink .stat .n { color: #fff; }
.stat .n small { font-size: .95rem; font-weight: 600; margin-left: 3px; }
.stat .k { font-size: .78rem; font-weight: 600; color: var(--bronze-text); letter-spacing: .08em; margin-bottom: 10px; }
.sec.ink .stat .k { color: #D9BC8B; }
.stat .d { font-size: .8rem; color: var(--text-2); margin-top: 8px; line-height: 1.8; }
.sec.ink .stat .d { color: rgba(255,255,255,.72); }

/* ---------- 表 ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 26px 0; }
table.t { width: 100%; border-collapse: collapse; font-size: .89rem; min-width: 560px; background: var(--paper); }
table.t th, table.t td { border: 1px solid var(--line); padding: 13px 16px; text-align: left; vertical-align: top; line-height: 1.75; }
table.t thead th { background: var(--ink); color: #fff; font-weight: 600; font-size: .84rem; letter-spacing: .03em; border-color: var(--ink); }
table.t tbody th { background: var(--cream); font-weight: 600; color: var(--ink); white-space: nowrap; }
table.t td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.t tr.total th, table.t tr.total td { background: var(--ink-pale); font-weight: 700; color: var(--ink); }
table.t tr.indent th { padding-left: 30px; font-weight: 400; background: var(--paper); color: var(--text); }
table.t td .neg { color: #8C3A2E; }

/* ---------- 注記 ---------- */
.note { font-size: .78rem; color: var(--text-2); line-height: 1.85; }
.notice {
  border: 1px solid var(--line); border-left: 3px solid var(--bronze);
  background: var(--bronze-pale); border-radius: 6px; padding: 18px 22px;
  font-size: .83rem; color: var(--text); line-height: 1.9; margin: 26px 0;
}
.notice strong { color: var(--ink); }

/* ---------- 本文リスト ---------- */
.prose p { margin-bottom: 18px; font-size: .95rem; }
.prose h3 { margin: 40px 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.prose ul, .prose ol { margin: 0 0 20px 1.3em; }
.prose li { margin-bottom: 9px; font-size: .93rem; }
.prose a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

.checks { list-style: none; margin: 0; }
.checks li { position: relative; padding-left: 28px; margin-bottom: 13px; font-size: .92rem; line-height: 1.85; }
.checks li::before {
  content: ""; position: absolute; left: 4px; top: .62em; width: 8px; height: 8px;
  border-radius: 50%; background: var(--bronze);
}

/* ---------- 図 ---------- */
figure.diagram { margin: 34px 0; }
figure.diagram svg { width: 100%; height: auto; display: block; }
figure.diagram figcaption { font-size: .78rem; color: var(--text-2); margin-top: 12px; }

/* ---------- CTA 帯 ---------- */
.cta-band { background: linear-gradient(150deg, var(--ink-deep), var(--ink) 70%, #1C6339); color: #fff; padding: 70px 0; text-align: center; }
.cta-band h2 { color: #fff; margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.82); font-size: .93rem; max-width: 560px; margin: 0 auto; }
.cta-band .btn-row { justify-content: center; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
  .cards.c3, .cards.c4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .sec { padding: 58px 0; }
  .cards.c2, .cards.c3, .cards.c4 { grid-template-columns: 1fr; }
  .pagehead { padding: 48px 0 44px; }
  body { line-height: 1.85; }
}

/* ==========================================================================
   所有と管理の分離 — フロー図（SVGではなくHTMLで組み、狭い画面で自然に縦積みする）
   ========================================================================== */
.flow { margin: 34px 0 8px; }
.flow-box {
  background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
  padding: 18px 20px; text-align: center;
}
.flow-box .t { font-weight: 700; color: var(--ink); font-size: .95rem; line-height: 1.6; }
.flow-box .s { display: block; font-size: .78rem; color: var(--text-2); margin-top: 6px; line-height: 1.75; font-weight: 400; }
.flow-box.hero-box { background: var(--ink); border-color: var(--ink); padding: 24px 22px; }
.flow-box.hero-box .t { color: #fff; font-size: 1.05rem; }
.flow-box.hero-box .s { color: rgba(255,255,255,.78); }
.flow-box.owner { border-left: 3px solid var(--bronze); }
.flow-box.muted { background: var(--cream); }

.flow-pair { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 14px; }
.flow-pair .link-lbl {
  font-size: .72rem; color: var(--bronze-text); font-weight: 600; text-align: center;
  line-height: 1.6; white-space: nowrap; position: relative; padding: 0 6px;
}
.flow-pair .link-lbl::before {
  content: ""; position: absolute; left: -8px; right: -8px; top: 50%;
  border-top: 1px dashed var(--bronze); z-index: -1;
}
.flow-arrow {
  text-align: center; font-size: .76rem; color: var(--text-2); font-weight: 600;
  padding: 12px 0 10px; position: relative;
}
.flow-arrow::before {
  content: ""; display: block; width: 1px; height: 14px; background: var(--line); margin: 0 auto 8px;
}
.flow-arrow::after {
  content: ""; display: block; width: 0; height: 0; margin: 6px auto 0;
  border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 7px solid var(--line);
}
.flow-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 700px) {
  .flow-pair { grid-template-columns: 1fr; }
  .flow-pair .link-lbl { white-space: normal; padding: 4px 0; }
  .flow-pair .link-lbl::before { display: none; }
  .flow-trio { grid-template-columns: 1fr; }
}

/* ---------- 信頼の帯 ---------- */
.trust { display: flex; flex-wrap: wrap; gap: 1px; background: rgba(255,255,255,.16); border-radius: 8px; overflow: hidden; }
.trust div { flex: 1 1 190px; background: var(--ink); padding: 20px 18px; font-size: .84rem; color: rgba(255,255,255,.9); line-height: 1.7; }
.trust div strong { display: block; color: #D9BC8B; font-size: .72rem; letter-spacing: .1em; margin-bottom: 6px; }

/* ---------- お知らせ ---------- */
.news { list-style: none; border-top: 1px solid var(--line); }
.news li { border-bottom: 1px solid var(--line); padding: 18px 4px; display: flex; gap: 22px; flex-wrap: wrap; font-size: .9rem; }
.news li time { color: var(--bronze-text); font-weight: 600; font-size: .82rem; flex-shrink: 0; font-variant-numeric: tabular-nums; }

/* ---------- 準備中バッジ ---------- */
.badge {
  display: inline-block; font-size: .66rem; font-weight: 700; letter-spacing: .08em;
  padding: 3px 9px; border-radius: 3px; background: var(--cream-2); color: var(--text-2);
  vertical-align: middle; margin-left: 8px;
}
.card.soon { background: var(--cream); border-style: dashed; }
.card.soon:hover { transform: none; box-shadow: none; }

/* ---------- 定義リスト（会社概要） ---------- */
dl.spec { border-top: 1px solid var(--line); }
dl.spec > div { display: grid; grid-template-columns: 190px 1fr; border-bottom: 1px solid var(--line); }
dl.spec dt { padding: 16px 18px; background: var(--cream); font-weight: 600; color: var(--ink); font-size: .87rem; }
dl.spec dd { padding: 16px 20px; font-size: .89rem; line-height: 1.85; }
@media (max-width: 620px) {
  dl.spec > div { grid-template-columns: 1fr; }
  dl.spec dt { padding: 12px 16px; }
  dl.spec dd { padding: 12px 16px 18px; }
}

/* ==========================================================================
   フォーム
   ========================================================================== */
.form-card { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 34px 32px; }
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label.fl { display: block; font-size: .82rem; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
label.fl .req { color: #B4392B; font-size: .75rem; margin-left: 5px; }
input[type=text], input[type=email], input[type=tel], textarea, select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 5px;
  font-family: inherit; font-size: .9rem; color: var(--text); background: var(--paper);
  transition: border-color .2s, box-shadow .2s;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--ink-2); box-shadow: 0 0 0 3px rgba(47,107,70,.13);
}
textarea { min-height: 150px; resize: vertical; line-height: 1.8; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 6px; }
.chip {
  display: inline-flex; align-items: center; padding: 9px 16px; border: 1px solid var(--line);
  border-radius: 999px; font-size: .84rem; cursor: pointer; background: var(--paper);
  transition: background .2s, border-color .2s, color .2s; user-select: none;
}
.chip:hover { border-color: var(--ink-2); }
.chip.active { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 600; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 34px; align-items: start; }
.side-card { background: var(--cream); border: 1px solid var(--line); border-radius: 10px; padding: 26px 24px; font-size: .86rem; line-height: 1.9; }
.side-card h3 { font-size: .98rem; margin-bottom: 12px; }
.side-card + .side-card { margin-top: 18px; }
.form-fallback {
  margin-top: 20px; padding: 18px 20px; border: 1px solid var(--line); border-left: 3px solid var(--bronze);
  border-radius: 6px; background: var(--bronze-pale); font-size: .87rem; line-height: 1.85;
}
@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 26px 20px; }
}