/* ==========================================================================
   SmallChecker サービスサイト デザインシステム
   配色：ジャパンブルー（ダッシュボードと共通）
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

:root{
  /* 基調ネイビー */
  --navy: #001A6E;
  --navy-mid: #2A4A9E;
  --navy-pale: #EFF2FA;
  /* アクセント（水色） */
  --cyan: #3EC6E8;
  --cyan-mid: #6FD6EE;
  --cyan-pale: #EEF9FC;
  /* アラート（ピンク〜マゼンタ）※警告用途に温存。ロゴ・CTAには使わない */
  --pink: #D6127A;
  --pink-mid: #E8459A;
  --pink-pale: #FDF1F6;
  /* グラデーション */
  --gradient-hero: linear-gradient(90deg, #001A6E 0%, #2A4A9E 55%, #3EC6E8 100%);
  /* ニュートラル */
  --ink: #16213E;
  --text: #2B3450;
  --text-sub: #6B7386;
  --line: #E3E7F0;
  --bg: #FFFFFF;
  --bg-soft: #F7F9FC;
  /* 形状 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(0,26,110,0.06);
  --shadow-md: 0 8px 28px rgba(0,26,110,0.10);
  --container: 1120px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: var(--navy-mid); text-decoration:none; }
a:hover{ text-decoration:underline; }
ul{ margin:0; padding:0; }
li{ list-style:none; }
h1,h2,h3,h4{ color: var(--ink); font-weight:700; margin:0 0 .6em; line-height:1.4; }
p{ margin:0 0 1em; }

.container{ max-width: var(--container); margin:0 auto; padding:0 24px; }
.visually-hidden{ position:absolute !important; width:1px;height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }

/* ---------- ロゴ ---------- */
.logo{
  font-family:'Noto Sans JP', sans-serif;
  font-weight:900;
  font-size:22px;
  letter-spacing: .01em;
  display:inline-flex;
  align-items:center;
  gap:8px;
  line-height:1;
}
.logo .lg-small{ color: var(--navy); }
.logo .lg-checker{ color: var(--cyan); }
.logo.on-navy .lg-small{ color:#fff; }
.logo-nav{ display:flex; align-items:center; }

/* ---------- ヘッダー ---------- */
.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.main-nav{ display:flex; align-items:center; gap:32px; }
.main-nav a{
  color: var(--text); font-weight:500; font-size:15px;
}
.main-nav a:hover{ color: var(--navy-mid); text-decoration:none; }
.main-nav a.active{ color: var(--navy); font-weight:700; }
.header-cta{ display:flex; align-items:center; gap:20px; }
.nav-toggle{
  display:none; background:none; border:none; cursor:pointer;
  width:40px; height:40px; align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; display:block; width:22px; height:2px; background:var(--navy);
  position:relative; transition:.2s;
}
.nav-toggle span::before{ position:absolute; top:-7px; }
.nav-toggle span::after{ position:absolute; top:7px; }

/* ---------- ボタン ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-weight:700; font-size:15px; border-radius: 999px;
  padding: 13px 28px; cursor:pointer; border:2px solid transparent;
  transition: transform .15s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn:hover{ text-decoration:none; transform: translateY(-2px); }
.btn-primary{
  background: var(--cyan); color: #00263A;
  box-shadow: 0 6px 18px rgba(62,198,232,0.4);
}
.btn-primary:hover{ background: var(--cyan-mid); }
.btn-navy{
  background: var(--navy); color:#fff;
  box-shadow: 0 6px 18px rgba(0,26,110,0.25);
}
.btn-navy:hover{ background: var(--navy-mid); color:#fff; }
.btn-outline{
  background: transparent; border-color: var(--navy); color: var(--navy);
}
.btn-outline:hover{ background: var(--navy-pale); }
.btn-outline-white{
  background: transparent; border-color: rgba(255,255,255,0.6); color:#fff;
}
.btn-outline-white:hover{ background: rgba(255,255,255,0.14); }
.btn-sm{ padding:9px 18px; font-size:13px; }
.btn-block{ width:100%; }

/* ---------- ヒーロー（グラデーション） ---------- */
.hero{
  background: var(--gradient-hero);
  color:#fff;
  padding: 88px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::after{
  content:''; position:absolute; inset:0;
  background: radial-gradient(circle at 85% 20%, rgba(255,255,255,0.12), transparent 55%);
}
.hero-inner{ position:relative; z-index:1; text-align:center; max-width: 780px; margin:0 auto; }
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  background: rgba(255,255,255,0.14); border:1px solid rgba(255,255,255,0.3);
  color:#fff; font-size:13px; font-weight:700; padding:7px 16px; border-radius:999px;
  margin-bottom:24px;
}
.hero h1{
  color:#fff; font-size: clamp(28px, 4.4vw, 44px); line-height:1.45; margin-bottom:20px;
  letter-spacing: .01em;
}
.hero-sub{ color: rgba(255,255,255,0.92); font-size: 17px; margin-bottom:36px; line-height:1.8; }
.hero-actions{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; margin-bottom:20px; }
.hero-note{ color: rgba(255,255,255,0.75); font-size:13px; }

/* ---------- セクション共通 ---------- */
.section{ padding: 84px 0; }
.section-soft{ background: var(--bg-soft); }
.section-navy{ background: var(--navy); color:#fff; }
.section-pale{ background: var(--navy-pale); }
.section-head{ text-align:center; max-width:680px; margin:0 auto 52px; }
.section-tag{
  display:inline-block; font-size:13px; font-weight:700; color: var(--navy-mid);
  background: var(--navy-pale); padding:5px 14px; border-radius:999px; margin-bottom:14px;
}
.section-head h2{ font-size: clamp(24px,3vw,32px); margin-bottom:14px; }
.section-head p{ color: var(--text-sub); font-size:16px; margin:0; }
.section-navy .section-head p{ color: rgba(255,255,255,0.8); }
.section-navy .section-head h2{ color:#fff; }

/* ---------- 3ステップ ---------- */
.step-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
.step-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding:32px 28px; box-shadow: var(--shadow-sm); position:relative;
}
.step-num{
  width:40px;height:40px; border-radius:50%; background: var(--navy); color:#fff;
  display:flex; align-items:center; justify-content:center; font-weight:900; font-size:16px;
  margin-bottom:20px;
}
.step-card h3{ font-size:18px; margin-bottom:10px; }
.step-card p{ color: var(--text-sub); font-size:14px; margin:0; }
.step-arrow{
  position:absolute; right:-30px; top:50%; transform:translateY(-50%);
  color: var(--cyan-mid); font-size:22px; font-weight:900;
}

/* ---------- 画面モックアップ（実画像なしの模式図） ---------- */
.mockup-frame{
  background:#fff; border-radius: var(--radius-md); border:1px solid var(--line);
  box-shadow: var(--shadow-md); overflow:hidden;
}
.mockup-bar{
  background: var(--navy-pale); padding:10px 16px; display:flex; align-items:center; gap:8px;
}
.mockup-bar span{ width:9px;height:9px;border-radius:50%; background: var(--line); }
.mockup-bar .mockup-title{
  font-size:12px; color: var(--navy-mid); font-weight:700; margin-left:6px;
}
.mockup-body{ padding:20px; }
.mockup-skel{
  background: var(--navy-pale); border-radius:6px; height:14px; margin-bottom:10px;
}
.mockup-skel.w60{ width:60%; }
.mockup-skel.w40{ width:40%; }
.mockup-skel.w90{ width:90%; }
.mockup-bar-chart{ display:flex; align-items:flex-end; gap:8px; height:100px; margin:16px 0; }
.mockup-bar-chart div{ flex:1; border-radius:4px 4px 0 0; }
.mockup-badge{
  display:inline-flex; align-items:center; gap:6px; font-size:12px; font-weight:700;
  padding:5px 12px; border-radius:999px; background: var(--cyan-pale); color:#00697F;
}
.mockup-badge.alert{ background: var(--pink-pale); color:#B23670; }
.mockup-caption{
  text-align:center; font-size:13px; color: var(--text-sub); margin-top:14px;
}

/* ---------- ベントーグリッド（LP個別解説） ---------- */
.bento-grid{
  display:grid; grid-template-columns: repeat(6, 1fr); gap:20px;
}
.bento-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding:28px; box-shadow: var(--shadow-sm); display:flex; flex-direction:column; gap:16px;
  transition: box-shadow .2s, transform .2s;
}
.bento-card:hover{ box-shadow: var(--shadow-md); transform: translateY(-3px); }
.bento-card .num{ font-size:12px; font-weight:800; color: var(--cyan-mid); letter-spacing:.05em; }
.bento-card h3{ font-size:18px; margin-bottom:6px; }
.bento-card p{ color: var(--text-sub); font-size:14px; margin:0; flex-grow:1; }
.bento-card .more{ font-size:13px; font-weight:700; color: var(--navy-mid); }
.bento-2x{ grid-column: span 3; }
.bento-1x{ grid-column: span 2; }
.bento-full{ grid-column: span 6; }

/* ---------- カテゴリグリッド（aboutハブ） ---------- */
.cat-grid{ display:grid; grid-template-columns: repeat(2,1fr); gap:24px; }
.cat-card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding:30px; box-shadow: var(--shadow-sm);
}
.cat-card h3{
  font-size:17px; display:flex; align-items:center; gap:10px; margin-bottom:16px;
  color: var(--navy);
}
.cat-icon{
  width:36px;height:36px;border-radius:10px; background:var(--navy-pale); color:var(--navy);
  display:flex;align-items:center;justify-content:center; flex-shrink:0;
}
.cat-list li{ border-top:1px solid var(--line); }
.cat-list li:first-child{ border-top:none; }
.cat-list a{
  display:flex; align-items:center; justify-content:space-between;
  padding:13px 2px; color: var(--text); font-size:14.5px; font-weight:500;
}
.cat-list a:hover{ color: var(--navy-mid); text-decoration:none; }
.cat-list a::after{ content:'›'; color: var(--cyan-mid); font-weight:900; font-size:18px; }
.cat-card.full{ grid-column: span 2; }

/* ---------- カード／リスト共通 ---------- */
.card{
  background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
  padding:28px; box-shadow: var(--shadow-sm);
}
.check-list li{
  display:flex; gap:10px; padding:8px 0; font-size:15px; align-items:flex-start;
}
.check-list li::before{
  content:'✓'; color: var(--cyan); font-weight:900; flex-shrink:0;
  background: var(--cyan-pale); width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center; font-size:12px; margin-top:2px;
}

/* ---------- 安心材料バッジ ---------- */
.trust-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:20px; }
.trust-item{
  text-align:center; padding:28px 20px; background:#fff; border:1px solid var(--line);
  border-radius: var(--radius-lg);
}
.trust-item .ic{
  width:52px;height:52px;border-radius:50%; margin:0 auto 16px; background: var(--navy-pale);
  color: var(--navy); display:flex; align-items:center; justify-content:center; font-size:22px;
}
.trust-item h4{ font-size:15px; margin-bottom:8px; }
.trust-item p{ font-size:13px; color: var(--text-sub); margin:0; }

/* ---------- パンくず ---------- */
.breadcrumb{
  font-size:13px; color: var(--text-sub); padding: 18px 0;
}
.breadcrumb a{ color: var(--text-sub); }
.breadcrumb span.sep{ margin:0 6px; }
.breadcrumb span.current{ color: var(--navy); font-weight:700; }

/* ---------- ページヘッダー（サブページ用） ---------- */
.page-hero{
  background: var(--navy-pale); padding: 44px 0 52px;
}
.page-hero .cat-eyebrow{
  font-size:13px; font-weight:700; color: var(--navy-mid); margin-bottom:10px;
  display:block;
}
.page-hero h1{ font-size: clamp(24px,3.4vw,34px); color: var(--navy); margin-bottom:12px; }
.page-hero p{ color: var(--text-sub); font-size:15.5px; max-width:680px; margin:0; }

/* ---------- 図解ボックス（判定ロジック等） ---------- */
.formula-box{
  background: var(--navy); color:#fff; border-radius: var(--radius-lg);
  padding:28px 32px; font-size:15px; line-height:2;
}
.formula-box .f-label{ font-size:12px; color: var(--cyan-mid); font-weight:700; letter-spacing:.05em; }
.formula-box code{
  background: rgba(255,255,255,0.12); padding:2px 8px; border-radius:6px; font-size:14px;
}
.two-col{ display:grid; grid-template-columns: 1fr 1fr; gap:32px; align-items:center; }
.num-badge-list{ display:flex; flex-direction:column; gap:18px; }
.num-badge-list li{ display:flex; gap:16px; }
.num-badge{
  width:32px;height:32px;border-radius:50%; background: var(--navy); color:#fff;
  display:flex;align-items:center;justify-content:center; font-weight:800; font-size:14px;
  flex-shrink:0;
}
.num-badge-list h4{ font-size:15.5px; margin-bottom:4px; }
.num-badge-list p{ font-size:13.5px; color: var(--text-sub); margin:0; }

/* ---------- テーブル ---------- */
table.data-table{ width:100%; border-collapse: collapse; font-size:14.5px; }
table.data-table th, table.data-table td{
  border-bottom:1px solid var(--line); padding:14px 12px; text-align:left;
}
table.data-table th{ background: var(--navy-pale); color: var(--navy); font-weight:700; }

/* ---------- 料金カード ---------- */
.price-grid{ display:grid; grid-template-columns: repeat(2,1fr); gap:24px; }
.price-card{
  background:#fff; border:2px solid var(--line); border-radius: var(--radius-lg);
  padding:36px; position:relative;
}
.price-card.featured{ border-color: var(--cyan); box-shadow: var(--shadow-md); }
.price-badge{
  position:absolute; top:-14px; right:28px; background: var(--pink-mid); color:#fff;
  font-size:12px; font-weight:700; padding:5px 14px; border-radius:999px;
}
.price-card h3{ font-size:18px; margin-bottom:6px; }
.price-card .price{ font-size:38px; font-weight:900; color: var(--navy); margin:14px 0 4px; }
.price-card .price small{ font-size:14px; font-weight:500; color: var(--text-sub); }
.price-card .price-note{ font-size:13px; color: var(--text-sub); margin-bottom:22px; }

/* ---------- FAQ アコーディオン ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-item:first-child{ border-top:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; cursor:pointer;
  padding:20px 4px; font-size:15.5px; font-weight:700; color: var(--ink);
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-q .q-mark{
  width:26px;height:26px;border-radius:50%; background: var(--navy-pale); color:var(--navy);
  display:flex; align-items:center; justify-content:center; font-size:13px; flex-shrink:0;
}
.faq-q .plus{ color: var(--cyan-mid); font-size:20px; font-weight:900; flex-shrink:0; transition: transform .2s; }
.faq-item.open .plus{ transform: rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition: max-height .25s ease; }
.faq-a-inner{ padding: 0 4px 22px 42px; color: var(--text-sub); font-size:14.5px; line-height:1.9; }
.faq-a-inner a{ text-decoration:underline; }

/* ---------- CTA帯 ---------- */
.cta-band{
  background: var(--gradient-hero); border-radius: var(--radius-lg); color:#fff;
  padding:52px 40px; text-align:center;
}
.cta-band h2{ color:#fff; font-size: clamp(22px,3vw,28px); margin-bottom:14px; }
.cta-band p{ color: rgba(255,255,255,0.88); margin-bottom:28px; }

/* ---------- フッター ---------- */
.site-footer{ background: var(--ink); color: rgba(255,255,255,0.72); padding: 56px 0 28px; }
.footer-top{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:40px; padding-bottom:32px;
  border-bottom:1px solid rgba(255,255,255,0.12); margin-bottom:24px;
}
.footer-brand p{ color: rgba(255,255,255,0.55); font-size:13.5px; max-width:280px; margin-top:14px; }
.footer-cols{ display:flex; gap:56px; flex-wrap:wrap; }
.footer-col h5{ color:#fff; font-size:13px; margin-bottom:14px; letter-spacing:.04em; }
.footer-col li{ margin-bottom:10px; }
.footer-col a{ color: rgba(255,255,255,0.65); font-size:13.5px; }
.footer-col a:hover{ color:#fff; text-decoration:none; }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:12.5px; color: rgba(255,255,255,0.4);
}

/* ---------- ユーティリティ ---------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }
.source-note{
  font-size:12.5px; color: var(--text-sub); background: var(--bg-soft);
  border-left:3px solid var(--cyan); padding:14px 18px; border-radius: 0 8px 8px 0;
}
.tag-list{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:20px; }
.tag-pill{
  font-size:12.5px; font-weight:700; background: var(--navy-pale); color: var(--navy-mid);
  padding:5px 13px; border-radius:999px;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px){
  .step-grid{ grid-template-columns:1fr; }
  .step-arrow{ display:none; }
  .bento-grid{ grid-template-columns: repeat(2,1fr); }
  .bento-2x, .bento-1x, .bento-full{ grid-column: span 2; }
  .cat-grid{ grid-template-columns:1fr; }
  .cat-card.full{ grid-column: span 1; }
  .two-col{ grid-template-columns:1fr; }
  .price-grid{ grid-template-columns:1fr; }
  .trust-grid{ grid-template-columns:1fr; }
}
@media (max-width: 720px){
  .main-nav{
    position:fixed; top:72px; left:0; right:0; bottom:0; background:#fff;
    flex-direction:column; align-items:flex-start; padding:24px; gap:22px;
    transform: translateX(100%); transition: transform .25s; overflow-y:auto;
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav a{ font-size:17px; }
  .nav-toggle{ display:flex; }
  .header-cta .btn{ padding:10px 18px; font-size:13px; }
  .bento-grid{ grid-template-columns: 1fr; }
  .bento-2x, .bento-1x, .bento-full{ grid-column: span 1; }
  .hero{ padding:64px 0 72px; }
  .section{ padding:60px 0; }
  .footer-cols{ gap:32px; }
}