@charset "utf-8";
/* ============================================================
   ヒカリデンキ 公式サイト スタイルシート
   2026-07 リニューアル / モバイルファースト
   ============================================================ */

:root{
  --c-primary:#00A0E9;
  --c-primary-d:#0084C2;
  --c-dark:#0B3A5C;
  --c-dark-2:#14587F;
  --c-accent:#F08300;
  --c-accent-d:#D97400;
  --text:#1E2A32;
  --muted:#5B6B78;
  --border:#DCE5EC;
  --bg:#fff;
  --bg-soft:#F4F8FB;
  --radius:10px;
  --shadow:0 2px 12px rgba(11,58,92,.10);
  --wrap:1080px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:70px}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:"Noto Sans JP","Hiragino Sans","ヒラギノ角ゴ ProN","Yu Gothic","游ゴシック体",Meiryo,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;vertical-align:middle;border:0}
a{color:var(--c-primary-d)}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul{padding:0;list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.sec{padding:48px 0}
.sec--soft{background:var(--bg-soft)}
.sec--dark{background:var(--c-dark);color:#fff}
.sec--dark a{color:#8FD6F7}

/* ---- 見出し ---- */
.sec-h{
  font-size:1.5rem;line-height:1.5;font-weight:700;
  margin:0 0 8px;letter-spacing:.01em;
}
.sec-h::after{
  content:"";display:block;width:44px;height:4px;
  background:var(--c-primary);border-radius:2px;margin-top:14px;
}
.sec-lead{color:var(--muted);margin:18px 0 28px}
.sec--dark .sec-lead{color:#B9DFF2}
h3.blk{font-size:1.15rem;font-weight:700;margin:32px 0 10px}

/* ============================ ヘッダー ============================ */
.site-header{
  position:sticky;top:0;z-index:90;	/*スマホ固定CTA(60)より上。ドロワーがCTAを覆うようにするため*/
  background:#fff;border-bottom:1px solid var(--border);
}
.site-header__in{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 20px;max-width:var(--wrap);margin:0 auto}
.site-logo{margin:0;line-height:1;font-size:1rem}
.site-logo img{width:190px}
.site-header__tel{display:none}
/*ハンバーガーボタン（開くと×印に変化）*/
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--border);background:#fff;
  border-radius:8px;cursor:pointer;padding:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  position:relative;z-index:2;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--c-dark);border-radius:2px;
  transition:transform .25s ease,opacity .15s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/*スマホ・タブレット用ドロワーメニュー（ヘッダーの下を覆う）*/
.site-nav{
  position:fixed;left:0;right:0;top:var(--hdr-h,64px);bottom:0;z-index:1;
  background:rgba(8,40,63,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.site-nav.is-open{opacity:1;visibility:visible}
.site-nav ul{
  position:absolute;top:0;right:0;bottom:0;width:min(82%,300px);
  margin:0;padding:6px 22px 28px;background:#fff;overflow-y:auto;
  box-shadow:-6px 0 24px rgba(8,40,63,.22);
  transform:translateX(100%);transition:transform .28s ease;
}
.site-nav.is-open ul{transform:translateX(0)}
.site-nav li+li{border-top:1px solid var(--border)}
.site-nav a{display:block;padding:15px 2px;color:var(--text);text-decoration:none;font-weight:600}
.site-nav a:hover{color:var(--c-primary-d)}
body.nav-open{overflow:hidden}

/* ============================ ボタン ============================ */
.btn{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:16px 24px;border-radius:var(--radius);border:2px solid transparent;
  font-weight:700;font-size:1.05rem;text-decoration:none;line-height:1.5;
  text-align:center;cursor:pointer;transition:.2s;
}
.btn--accent{background:var(--c-accent);color:#fff}
.btn--accent:hover{background:var(--c-accent-d);color:#fff}
.btn--tel{background:#fff;color:var(--c-dark);border-color:var(--c-dark)}
.btn--tel:hover{background:var(--c-dark);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn--block{display:flex;width:100%}
.btn small{display:block;font-size:.75rem;font-weight:500;opacity:.9}
.btn-row{display:grid;gap:12px;margin:24px 0 10px}
.btn-note{font-size:.85rem;color:var(--muted);margin-top:4px}

/* ============================ ヒーロー ============================ */
.hero{
  background:linear-gradient(140deg,var(--c-dark) 0%,var(--c-dark-2) 100%);
  color:#fff;padding:40px 0 44px;
}
.hero h1{font-size:1.75rem;line-height:1.45;font-weight:700;letter-spacing:.01em;margin:0 0 18px}
.hero h1 .mark{color:#5FCBF5}
.hero p{color:#CFE7F5;font-size:1rem}
.hero .btn-row{margin-top:26px}
.hero .btn-note{color:#9FC9DF}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.hero-badges li{
  font-size:.82rem;font-weight:600;color:#CFE7F5;
  border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:5px 12px;
}

/* ============================ チェックリスト ============================ */
.checklist{display:grid;gap:10px;margin:0 0 24px}
.checklist li{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px 14px 48px;position:relative;font-weight:600;
}
.checklist li::before{
  content:"";position:absolute;left:16px;top:19px;width:18px;height:18px;
  border:2px solid var(--c-primary);border-radius:4px;
}
.checklist li::after{
  content:"";position:absolute;left:21px;top:22px;width:7px;height:12px;
  border-right:3px solid var(--c-primary);border-bottom:3px solid var(--c-primary);
  transform:rotate(42deg);
}
.callout{
  background:#fff;border-left:5px solid var(--c-accent);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow);font-weight:700;
}

/* ============================ 2カラム比較 ============================ */
.compare{display:grid;gap:16px}
.compare__col{border-radius:var(--radius);padding:22px;border:1px solid var(--border);background:#fff}
.compare__col--keep{border-top:5px solid var(--c-primary)}
.compare__col--change{border-top:5px solid var(--c-accent)}
.compare__col h3{font-size:1.1rem;font-weight:700;margin:0 0 12px}
.compare__col li{padding:8px 0 8px 26px;position:relative;border-top:1px dashed var(--border)}
.compare__col li:first-child{border-top:0}
.compare__col li::before{position:absolute;left:0;top:8px;font-weight:700}
.compare__col--keep li::before{content:"◎";color:var(--c-primary)}
.compare__col--change li::before{content:"→";color:var(--c-accent)}

/* ============================ 理由カード ============================ */
.cards{display:grid;gap:16px}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card__no{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:1.05rem;margin-bottom:12px;
}
.card h3{font-size:1.15rem;font-weight:700;margin:0 0 8px}
.card p{color:var(--muted);font-size:.95rem}

/* ============================ 料金表 ============================ */
.rate{margin:0 0 28px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.rate__head{background:var(--c-dark);color:#fff;padding:14px 20px}
.rate__head h3{font-size:1.1rem;font-weight:700;margin:0}
.rate__head span{display:block;font-size:.82rem;color:#B9DFF2;font-weight:500}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.rate-t{width:100%;border-collapse:collapse;font-size:.98rem;min-width:340px}
table.rate-t th,table.rate-t td{border-bottom:1px solid var(--border);padding:14px 20px;text-align:left;vertical-align:top}
table.rate-t th{background:var(--bg-soft);font-weight:600;white-space:nowrap;width:42%}
table.rate-t td{font-weight:700}
table.rate-t td small{display:block;font-weight:400;font-size:.82rem;color:var(--muted);margin-top:2px}
table.rate-t tr:last-child th,table.rate-t tr:last-child td{border-bottom:0}
.rate__note{padding:14px 20px;background:var(--bg-soft);font-size:.85rem;color:var(--muted);border-top:1px solid var(--border)}
.notes{font-size:.9rem;color:var(--muted);margin-top:8px}
.notes li{padding-left:1.1em;text-indent:-1.1em;margin-bottom:6px}
.notes li::before{content:"・"}

/* ============================ 正直セクション ============================ */
.honest{background:#fff;border:2px solid var(--c-accent);border-radius:var(--radius);padding:24px}
.honest dt{font-weight:700;margin-top:18px}
.honest dt:first-of-type{margin-top:0}
.honest dd{margin:4px 0 0;color:var(--muted);font-size:.95rem}

/* ============================ 事例 ============================ */
.case{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.case__meta{font-size:.85rem;color:var(--muted);font-weight:600}
.case__num{font-size:1.6rem;font-weight:700;color:var(--c-accent);line-height:1.3;margin:6px 0 10px}
.case__num span{font-size:.9rem;color:var(--text)}
.case__voice{font-size:.95rem;color:var(--muted);border-top:1px dashed var(--border);padding-top:12px;margin-top:12px}
.is-placeholder{background:repeating-linear-gradient(45deg,#FFF9F0,#FFF9F0 10px,#FFF3E0 10px,#FFF3E0 20px)}

/* ============================ ステップ ============================ */
.steps{counter-reset:step;display:grid;gap:16px}
.step{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 22px 22px 68px;position:relative}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:20px;top:20px;width:34px;height:34px;border-radius:50%;
  background:var(--c-dark);color:#fff;display:grid;place-items:center;font-weight:700;
}
.step h3{font-size:1.1rem;font-weight:700;margin:0 0 4px}
.step .term{font-size:.8rem;color:var(--c-primary-d);font-weight:700}
.step p{color:var(--muted);font-size:.95rem;margin-top:4px}

/* ============================ FAQ ============================ */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq-item summary{
  cursor:pointer;padding:18px 46px 18px 52px;font-weight:700;position:relative;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"Q";position:absolute;left:18px;top:18px;width:24px;height:24px;border-radius:4px;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:.85rem;
}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:.2s;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item .a{padding:0 20px 20px 52px;color:var(--muted);font-size:.96rem;position:relative}
.faq-item .a::before{
  content:"A";position:absolute;left:18px;top:0;width:24px;height:24px;border-radius:4px;
  background:var(--bg-soft);color:var(--c-dark);display:grid;place-items:center;font-size:.85rem;font-weight:700;
}

/* ============================ 会社情報テーブル ============================ */
table.info{width:100%;border-collapse:collapse;background:#fff;font-size:.96rem}
table.info th,table.info td{border:1px solid var(--border);padding:13px 16px;text-align:left;vertical-align:top}
table.info th{background:var(--bg-soft);font-weight:600;width:34%;white-space:nowrap}
table.info caption{
  caption-side:top;background:var(--c-dark);color:#fff;font-weight:700;
  padding:12px 16px;text-align:left;border-radius:var(--radius) var(--radius) 0 0;
}
table.info+table.info{margin-top:28px}

/* ============================ フォーム ============================ */
.form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.field{margin-bottom:22px}
.field>label,.field .lb{display:block;font-weight:700;margin-bottom:8px}
.req{background:var(--c-accent);color:#fff;font-size:.7rem;border-radius:4px;padding:2px 7px;margin-left:8px;vertical-align:2px}
.opt{background:var(--bg-soft);color:var(--muted);font-size:.7rem;border-radius:4px;padding:2px 7px;margin-left:8px;vertical-align:2px}
.field .hint{font-size:.85rem;color:var(--muted);margin-top:6px}
input[type=text],input[type=tel],input[type=email],input[type=file],select,textarea{
  width:100%;padding:13px 14px;font-size:1rem;font-family:inherit;color:var(--text);
  border:1px solid #B9C6D1;border-radius:8px;background:#fff;
}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px}
textarea{min-height:150px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(0,160,233,.28);border-color:var(--c-primary);outline-offset:0}
.field-row{display:grid;gap:16px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form__submit{margin-top:28px}
.form__note{font-size:.88rem;color:var(--muted);text-align:center;margin-top:12px}
.privacy-box{background:var(--bg-soft);border-radius:8px;padding:14px 16px;font-size:.88rem;color:var(--muted);margin-bottom:20px}

/* ============================ CTA帯 ============================ */
.cta{background:linear-gradient(140deg,var(--c-dark) 0%,var(--c-dark-2) 100%);color:#fff;padding:44px 0}
.cta h2{font-size:1.5rem;font-weight:700;margin:0 0 10px}
.cta p{color:#CFE7F5;font-size:.98rem}
.cta__tel{margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.2)}
.cta__tel a{font-size:1.7rem;font-weight:700;color:#fff;text-decoration:none;letter-spacing:.02em}
.cta__tel span{display:block;font-size:.85rem;color:#9FC9DF}

/* ============================ フッター ============================ */
.site-footer{background:#08283F;color:#B9DFF2;padding:36px 0 96px;font-size:.9rem}
.site-footer a{color:#B9DFF2;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer__nav{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:22px;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.15)}
.site-footer__name{color:#fff;font-weight:700;margin-bottom:6px}
.site-footer__cr{margin-top:22px;font-size:.8rem;color:#7FA6BF}

/* ============================ スマホ固定CTA ============================ */
.fixed-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px;
  background:rgba(255,255,255,.96);border-top:1px solid var(--border);
  box-shadow:0 -2px 12px rgba(11,58,92,.12);
}
.fixed-cta .btn{padding:12px 8px;font-size:.95rem;border-radius:8px}

/* ============================ パンくず ============================ */
.crumb{font-size:.82rem;color:var(--muted);padding:14px 0 0}
.crumb a{color:var(--muted)}
.crumb span{margin:0 6px}

/* ============================ 汎用 ============================ */
.page-head{background:var(--bg-soft);padding:26px 0 30px;border-bottom:1px solid var(--border)}
.page-head h1{font-size:1.5rem;font-weight:700;margin:0}
.page-head p{color:var(--muted);font-size:.95rem;margin-top:6px}
.prose h2{font-size:1.25rem;font-weight:700;margin:36px 0 12px}
.prose h3{font-size:1.05rem;font-weight:700;margin:26px 0 8px}
.prose p{margin-bottom:14px}
.prose ul{margin:0 0 16px}
.prose ul li{padding-left:1.1em;text-indent:-1.1em;margin-bottom:6px}
.prose ul li::before{content:"・"}
.doc-list{display:grid;gap:12px}
.doc-list a{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--text);font-weight:600;
}
.doc-list a:hover{border-color:var(--c-primary);color:var(--c-primary-d)}
.doc-list .ico{
  flex:none;width:34px;height:34px;border-radius:6px;background:#E8462F;color:#fff;
  display:grid;place-items:center;font-size:.68rem;font-weight:700;
}
.doc-list small{display:block;font-weight:500;color:var(--muted);font-size:.82rem}
.mt0{margin-top:0}
.center{text-align:center}

/* ============================ タブレット以上 ============================ */
@media (min-width:768px){
  body{font-size:17px}
  .sec{padding:64px 0}
  .sec-h{font-size:1.85rem}
  .hero{padding:64px 0 68px}
  .hero h1{font-size:2.5rem}
  .hero p{font-size:1.08rem}
  .btn-row{grid-template-columns:auto auto;justify-content:start}
  .compare{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:repeat(3,1fr)}
  .checklist{grid-template-columns:1fr 1fr}
  .field-row{grid-template-columns:1fr 1fr}
  .cta h2{font-size:1.9rem}
  .site-footer{padding-bottom:36px}
  .fixed-cta{display:none}
  .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
}

/* ============================ PC ============================ */
@media (min-width:960px){
  .site-header__in{padding:14px 20px}
  .site-logo img{width:240px}
  .nav-toggle{display:none}
  /*PCではドロワーを解除して通常の横並びメニューに戻す*/
  .site-nav{
    position:static;opacity:1;visibility:visible;background:none;order:2;
    transition:none;
  }
  .site-nav ul{
    position:static;transform:none;width:auto;height:auto;
    display:flex;gap:26px;padding:0;background:none;box-shadow:none;overflow:visible;
  }
  .site-nav li+li{border-top:0}
  .site-nav a{padding:4px 0;font-size:.95rem}
  .site-header__tel{display:block;text-align:right;order:3}
  .site-header__tel a{font-size:1.25rem;font-weight:700;color:var(--c-dark);text-decoration:none;letter-spacing:.02em}
  .site-header__tel span{display:block;font-size:.72rem;color:var(--muted);line-height:1.4}
  .steps{grid-template-columns:repeat(3,1fr)}
  .hero__in{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}