/* teikan.css */
/* =====================================================
   Teikan page CSS（Page-only / site.css+site.js compatible）
   - 共通（font / header / nav / dropdown / burger / backdrop / reveal / underline / footer / buttons）は site.css に委譲
   - ここには「ページ固有（定款UI）」のみを置く
===================================================== */

:root{
  --ink:#163a5c;
  --ink2:#244e7a;

  --paper1:#faf7ef;
  --paper2:#f5f1e8;

  --card:#ffffff;
  --border: rgba(19,41,61,.14);
  --shadow: 0 18px 36px rgba(0,0,0,.10);
}

/* services系ページの配色：site.css のCSS変数で差し替える（正攻法） */
body.services-page{
  --page-bg:
    radial-gradient(1200px 800px at 10% -10%, rgba(255,255,255,.8) 0%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, var(--paper1) 0%, var(--paper2) 100%);
  --page-fg: var(--ink);
  color: var(--page-fg);
}

/* ===== Sub Hero（teikan固有） ===== */
.sub-hero{
  position:relative;
  min-height:220px;
  display:grid;
  place-items:center;
  text-align:center;
  overflow:hidden;
  margin-top:64px; /* fixed header offset */
}
.sub-hero--teikan{
  /* ★背景画像の指定はここ */
  background: url("../images/company01.jpg") center/cover no-repeat;
}
.sub-hero__overlay{
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, rgba(10,24,40,.82) 0%, rgba(19,41,61,.76) 100%);
}
.sub-hero__inner{ position:relative; z-index:1; }
.sub-hero__title{
  margin:0;
  font-size:clamp(26px,3vw,36px);
  font-weight:900;
  letter-spacing:.02em;
  color:#eaf4ff;
  text-shadow:0 2px 14px rgba(0,0,0,.38);
}
.sub-hero__lead{
  margin:6px 0 0;
  font-size:14px;
  letter-spacing:.14em;
  color:#bfe2ff;
  text-transform:uppercase;
}

/* ===== Layout ===== */
.sub-main{ padding:34px 0 0; }
.sub-container{
  max-width:1100px;
  margin:0 auto;
  padding:40px 20px;
}

/* ===== Intro（ページ固有） ===== */
.teikan-intro{
  background: rgba(255,255,255,.60);
  border:1px solid rgba(19,41,61,.14);
  border-radius:16px;
  padding:22px 22px;
  box-shadow: 0 14px 28px rgba(0,0,0,.08);
  backdrop-filter: blur(10px) saturate(130%);
  -webkit-backdrop-filter: blur(10px) saturate(130%);
  position:relative;
  overflow:hidden;
}
.teikan-intro::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(255,255,255,.40), rgba(255,255,255,0) 52%);
  pointer-events:none;
}
.teikan-kicker{
  margin:0 0 10px;
  font-size:12px;
  letter-spacing:.18em;
  color:#195aa6;
  font-weight:900;
  text-transform:uppercase;
  position:relative;
  z-index:1;
}
.teikan-title{
  position:relative;
  z-index:1;
  margin:0 0 10px;
}
.teikan-note{
  margin:0;
  color: var(--ink2);
  font-size:15px;
  line-height:1.95;
  position:relative;
  z-index:1;
}

/* ===== Main Card ===== */
.teikan-card{
  margin-top:18px;
  background: var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow: var(--shadow);
  overflow:hidden;
}
.teikan-head{
  padding:18px 20px 14px;
  border-bottom:1px solid rgba(19,41,61,.10);
  background: linear-gradient(180deg, rgba(19,41,61,.04), rgba(255,255,255,0));
}
.teikan-head__label{
  margin:0;
  font-weight:900;
  letter-spacing:.20em;
  color:#0f2740;
}
.teikan-head__sub{
  margin:8px 0 0;
  color:#2a527f;
  font-size:14px;
  letter-spacing:.06em;
}

/* ===== details/summary ===== */
.teikan-details{
  border-top:1px solid rgba(19,41,61,.10);
}
.teikan-details:first-of-type{ border-top:none; }

.teikan-summary{
  list-style:none;
  cursor:pointer;
  padding:16px 20px;
  display:flex;
  align-items:center;
  gap:10px;
  background: rgba(19,41,61,.02);
  transition: background-color .18s ease;
}
.teikan-summary:hover{
  background: rgba(19,41,61,.05);
}
.teikan-details[open] .teikan-summary{
  background: rgba(14,165,233,.08);
}
.teikan-summary::-webkit-details-marker{ display:none; }

.teikan-summary__chap{
  font-weight:900;
  color:#195aa6;
  letter-spacing:.06em;
  flex:0 0 auto;
}
.teikan-summary__title{
  font-weight:900;
  color:#0f2740;
  letter-spacing:.02em;
}
.teikan-summary__hint{
  margin-left:auto;
  font-size:12px;
  letter-spacing:.16em;
  color:#2b5584;
  opacity:.70;
}
/* open時はヒント非表示（静かに） */
.teikan-details[open] .teikan-summary__hint{ opacity:0; }

/* body */
.teikan-body{
  padding:16px 20px 18px;
  color: var(--ink2);
  line-height:1.95;
}
.teikan-h3{
  margin:14px 0 6px;
  font-size:15px;
  font-weight:900;
  color:#195aa6;
  letter-spacing:.02em;
}
.teikan-p{
  margin:0 0 10px;
  font-size:15px;
}
.teikan-ol{
  margin:8px 0 12px;
  padding-left:20px;
  color:#2a527f;
  line-height:1.9;
}
.teikan-ol li{ margin:6px 0; }

.teikan-sign{
  margin-top:14px;
  padding-top:14px;
  border-top:1px dashed rgba(19,41,61,.18);
}

/* ===== CTA（低ノイズ） ===== */
.teikan-cta{
  margin:20px 0 0;
  padding:18px 18px;
  border-radius:16px;
  background: linear-gradient(180deg, rgba(19,41,61,.92) 0%, rgba(19,41,61,.84) 100%);
  color:#f6fbff;
  border:1px solid rgba(174,227,255,.14);
  box-shadow: 0 18px 34px rgba(0,0,0,.18);
  text-align:center;
}
.teikan-cta__title{
  margin:0 0 6px;
  font-size:18px;
  font-weight:900;
  letter-spacing:.03em;
}
.teikan-cta__text{
  margin:0 0 12px;
  font-size:14px;
  line-height:1.8;
  color:#d8e7ff;
}
.teikan-cta__btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 22px;
  border-radius:28px;
  background: rgba(255,255,255,.08);
  border:1px solid rgba(174,227,255,.28);
  color:#ffffff;
  text-decoration:none;
  font-weight:800;
  letter-spacing:.04em;
  transition: transform .2s ease, background .3s ease, box-shadow .3s ease;
  box-shadow: 0 16px 32px rgba(0,0,0,.22);
}
.teikan-cta__btn:hover{
  transform: translateY(-2px);
  background: rgba(174,227,255,.20);
  box-shadow: 0 22px 36px rgba(0,0,0,.28);
}

/* ===== Responsive（ページ固有のみ） ===== */
@media (max-width: 640px){
  .sub-container{ padding:34px 14px; }
  .teikan-intro{ padding:18px 16px; }
  .teikan-head{ padding:16px 16px 12px; }
  .teikan-summary{ padding:14px 16px; }
  .teikan-body{ padding:14px 16px 16px; }
  .teikan-p{ font-size:15px; }
}