/* =============================================================================
   テンプレート「クラシック」 v0.1
   濃い色のメニューバー、写真の見出し帯、斜線模様のサイドメニュー。
   画像は使わず CSS だけで描く。スマホ対応。スクリプトは使わない。
   ============================================================================= */
:root {
  --c-primary: #cc0000;
  --c-nav-bg: #2b2f2a;
  --c-page-bg: #c9c9c9;
  --c-text: #333333;
  --c-soft: #f3f3f3;
  --c-line: #d6d6d6;
  --c-link: #0a3d91;
  --page: 980px;
  --side: 190px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--c-page-bg); color: var(--c-text); font-family: var(--font-body); font-size: 15px; line-height: 1.8; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 100; background: #fff; padding: .5em 1em; }
.page { max-width: var(--page); margin: 0 auto; background: #fff; box-shadow: 0 0 10px rgba(0,0,0,.35); min-height: 100vh; }

/* ---- ヘッダー・メニューバー ---- */
.site-header { position: relative; }
.header-in { display: flex; flex-wrap: wrap; align-items: center; }
.brand { padding: 22px 24px 18px; font-size: 1.45rem; font-weight: 700; color: #222; text-decoration: none; letter-spacing: .03em; }
.brand img { display: block; width: auto; max-width: min(70vw, 420px); object-fit: contain; }
.main-nav { width: 100%; background: linear-gradient(#4a4f48, var(--c-nav-bg) 55%, #1d201c); border-bottom: 1px solid #111; }
.main-nav > ul { display: flex; list-style: none; margin: 0; padding: 4px 0 0 2px; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li + li::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 8px; border-left: 1px solid rgba(255,255,255,.45); }
.main-nav > ul > li > a { display: block; padding: 7px 30px 8px; color: #fff; text-decoration: none; font-weight: 700; font-size: .92rem; letter-spacing: .05em; }
.main-nav > ul > li > a:hover { background: rgba(255,255,255,.12); }
.main-nav > ul > .is-active > a:hover { background: #fff; }   /* 今いるセクションの白いタブは、マウスを乗せても白のまま */
.main-nav > ul > .is-active > a { background: #fff; color: #333; border: 1px solid #2e332d; border-bottom: 0; margin-bottom: -1px; padding-top: 9px; }
.main-nav > ul > .is-active::before, .main-nav > ul > .is-active + li::before { display: none; }
.nav-toggle, .nav-btn { display: none; }
.util-nav { margin-left: auto; margin-right: 18px; align-self: flex-start; padding-top: 10px; }
.util-nav ul { display: flex; list-style: none; margin: 0; padding: 0; }
.util-nav li { padding: 0 .9em; border-left: 1px solid #bbb; line-height: 1.2; }
.util-nav a { font-size: .75rem; color: #333; text-decoration: none; }
.util-nav a:hover { text-decoration: underline; }

/* ---- パンくず ---- */
.crumbs { font-size: .78rem; color: #555; padding: 5px 10px; border-bottom: 1px solid #cecece; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25em; }
.crumbs li + li::before { content: "＞"; margin-right: .25em; color: #777; }
.crumbs a { color: #555; text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }

/* ---- 写真の見出し帯（左側を白く抜いて文字を置く） ---- */
.band { position: relative; background: #e9e9e9 right center / auto 100% no-repeat; border-bottom: 1px solid #cecece; }
.band::before { content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, #fff 0%, #fff 38%, rgba(255,255,255,.75) 50%, rgba(255,255,255,0) 66%); }
.band-in { position: relative; min-height: 110px; display: flex; flex-direction: column; justify-content: center; padding: 0 36px; }
.band-sub { margin: 0; font-size: .78rem; letter-spacing: .12em; color: #777; text-transform: uppercase; }
.band-title { margin: 0; font-size: 1.45rem; color: #444; letter-spacing: .08em; text-shadow: 2px 2px 3px rgba(0,0,0,.18); }

/* ---- 2カラム ---- */
.cols { display: grid; grid-template-columns: minmax(0, 1fr) var(--side); align-items: stretch; }
.cols.side-left { grid-template-columns: var(--side) minmax(0, 1fr); }
.cols.side-left .side-nav { order: -1; }
.cols > main { padding: 22px 26px 50px; }
.one-col { padding: 22px 30px 50px; }
.full { padding: 30px 0 50px; }
.full > [data-block] { padding-inline: 30px; }
.main-top { padding: 26px 26px 50px; }

/* ---- サイドメニュー（斜線模様の帯、赤い矢印の印、点線の区切り） ---- */
.side-nav { background: repeating-linear-gradient(-45deg, #ececec 0 2px, #f7f7f7 2px 5px); padding: 4px 6px 30px 6px; }
.side-title { display: none; }
.side-nav ul { list-style: none; margin: 0; padding: 0; }
.side-nav > ul { background: #fff; border-left: 2px solid #c8b8b8; }
.side-nav a { position: relative; display: block; padding: 8px 8px 8px 24px; color: #333; text-decoration: none; font-weight: 700; font-size: .88rem;
  border-bottom: 1px dotted #b5b5b5; line-height: 1.5; }
.side-nav a::before { content: ""; position: absolute; left: 8px; top: 50%; translate: 0 -50%; width: 10px; height: 10px; background: var(--c-primary);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 0, 30% 20%, 30% 80%, 75% 50%, 30% 20%, 0 0); border-radius: 1px; }
.side-nav a:hover { background: #f6f6f6; }
.side-nav ul ul a { padding-left: 34px; font-size: .82rem; font-weight: 400; }
.side-nav ul ul a::before { left: 18px; width: 7px; height: 9px; clip-path: polygon(0 0, 100% 50%, 0 100%); border-radius: 0; }
.side-nav ul ul ul a { padding-left: 44px; }
.side-nav ul ul ul a::before { left: 28px; }
.side-nav .is-current > a { background: #efefef; box-shadow: inset 3px 0 0 var(--c-primary); }

/* ---- 部品の見た目の上書き（クラシックの見出し） ---- */
.t-classic .cms-content { line-height: 1.9; font-size: .95rem; --block-gap: 1.6rem; }
.t-classic [data-block="heading"] h1 { display: flex; align-items: center; gap: .5em; font-size: 1.7rem; font-weight: 700; color: #444;
  border: 0; padding: 0; letter-spacing: .05em; text-shadow: 2px 2px 3px rgba(0,0,0,.15); }
.t-classic [data-block="heading"] h1::before { content: ""; flex: none; width: 15px; height: 15px;
  background: radial-gradient(circle, var(--c-primary) 0 1.1px, transparent 1.4px) 0 0 / 3px 3px, #e88; }
.t-classic [data-block="heading"] h1::after { content: ""; flex: 1; height: 6px; margin-left: .4em; border-top: 2px solid #c8c8c8; border-bottom: 2px solid #c8c8c8; }
.t-classic .cms-content h2 { font-size: 1.05rem; padding: .35em .6em; border-left: 8px solid var(--c-primary); background: #f6f6f6; letter-spacing: .03em; }
.t-classic .cms-content h3 { font-size: 1rem; padding: 0 0 0 1.1em; border: 0; position: relative; }
.t-classic .cms-content h3::before { content: ""; position: absolute; left: 0; top: .45em; width: .7em; height: .7em; background: var(--c-primary); }
.t-classic .cms-content h4 { font-size: .95rem; padding-left: 1.1em; position: relative; }
.t-classic .cms-content h4::before { content: ""; position: absolute; left: 0; top: .45em; width: .7em; height: .7em; background: var(--c-primary); }
.t-classic [data-block="steps"] li > h3::before { position: static; width: auto; height: auto; }
.t-classic [data-block="steps"] li > h3 { padding-left: 0; }
.t-classic [data-block="cards"] .b-card h3 { padding-left: 0; }
.t-classic [data-block="cards"] .b-card h3::before { display: none; }
.t-classic [data-block="snippet"] { background: #fff; border: 1px solid #cfcfcf; border-radius: 0; padding: 0; }
.t-classic [data-block="snippet"] > h3:first-child { background: #eee; border-bottom: 1px solid #cfcfcf; margin: 0; padding: .4em 1em; }
.t-classic [data-block="snippet"] > h3:first-child::before { display: none; }
.t-classic [data-block="snippet"] > :not(h3:first-child) { margin-inline: 1.2em; }
.t-classic [data-block="snippet"] > :last-child { margin-bottom: 1em; }
.t-classic [data-block="snippet"] > h3:first-child + * { margin-top: .8em; }
.t-classic .cms-content img, .t-classic [data-block="cards"] .b-card, .t-classic [data-block="steps"] li { border-radius: 0; }
.t-classic [data-block="textpic"] .b-media img, .t-classic [data-block="image"] img { padding: 3px; border: 1px solid #ccc; background: #fff; }

/* ---- トップのメインビジュアル ---- */
.hero { background: #333 center / cover no-repeat; color: #fff; }
.hero-in { min-height: clamp(240px, 40vw, 426px); display: flex; flex-direction: column; justify-content: center; padding: 30px 40px;
  background: linear-gradient(90deg, rgba(0,0,0,.45), rgba(0,0,0,.05) 70%); text-shadow: 1px 1px 4px rgba(0,0,0,.7); }
.hero-sub { margin: 0; font-size: .8rem; letter-spacing: .2em; }
.hero-title { margin: .2em 0 0; font-size: clamp(1.4rem, 1rem + 1.8vw, 2.1rem); font-weight: 700; line-height: 1.45; word-break: auto-phrase; text-wrap: balance; }
.hero-text { margin: .9em 0 0; max-width: 30em; font-size: .88rem; line-height: 1.8; }
.hero-text:empty { display: none; }

/* ---- フッター ---- */
.site-footer { border-top: 1px solid #ccc; font-size: .82rem; }
.footer-nav { background: #eee; border-bottom: 1px solid #ccc; }
.footer-nav ul { list-style: none; margin: 0; padding: 3px 14px; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0 1.4em; }
.footer-nav a { color: #333; text-decoration: none; font-size: .78rem; }
.footer-nav a:hover { text-decoration: underline; }
.footer-in { display: flex; flex-direction: column; align-items: flex-end; gap: .4em; padding: 14px 20px 6px; text-align: right; }
.site-info p { margin: 0; }
.site-info a { color: inherit; }
.footer-name { margin: 0; font-weight: 700; }
.copy { margin: 0; padding: 4px 20px 14px; text-align: right; font-size: .75rem; font-weight: 700; color: #333; }

/* ---- スマホ ---- */
@media (max-width: 760px) {
  body { font-size: 15px; background: #fff; }
  .page { box-shadow: none; }
  .brand { padding: 14px 16px; font-size: 1.15rem; }
  .brand img { max-height: 40px; }
  .util-nav { padding-top: 0; margin-right: 0; align-self: center; }
  .nav-btn { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; margin-left: auto; margin-right: 8px;
    width: 48px; height: 44px; cursor: pointer; }
  .nav-btn span { display: block; width: 24px; height: 2px; background: #333; transition: transform .2s, opacity .2s; }
  .nav-btn b { font-size: .6rem; font-weight: 400; line-height: 1; margin-top: 2px; }
  .nav-toggle { display: block; position: absolute; opacity: 0; width: 1px; height: 1px; }
  .main-nav { display: none; }
  .nav-toggle:checked ~ .main-nav { display: block; }
  .nav-toggle:checked + .nav-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked + .nav-btn span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked + .nav-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-toggle:focus-visible + .nav-btn { outline: 2px solid var(--c-primary); }
  .main-nav > ul { flex-direction: column; padding: 0; }
  .main-nav > ul > li + li::before { display: none; }
  .main-nav > ul > li > a { padding: 12px 18px; border-top: 1px solid rgba(255,255,255,.15); }
  .main-nav > ul > .is-active > a { border: 0; margin: 0; box-shadow: inset 4px 0 0 var(--c-primary); }
  .band-in { min-height: 84px; padding: 0 16px; }
  .band::before { background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.85) 55%, rgba(255,255,255,.2) 100%); }
  .band-title { font-size: 1.2rem; }
  .cols, .cols.side-left { grid-template-columns: 1fr; }
  .cols.side-left .side-nav { order: 0; }
  .cols > main, .one-col, .main-top { padding: 18px 16px 36px; }
  .full > [data-block] { padding-inline: 16px; }
  .side-nav { padding: 10px; }
  .side-title { display: block; margin: 0; padding: .5em .8em; background: #555; color: #fff; font-weight: 700; font-size: .9rem; }
  .hero-in { padding: 24px 18px; }
  .footer-in, .footer-nav ul { align-items: flex-start; justify-content: flex-start; text-align: left; }
  .copy { text-align: left; }
}

/* メインビジュアルがあるページは見出し帯を出さない。パンくずが空（トップ）なら出さない */
.has-hero .band { display: none; }
.crumbs:empty { display: none; }

/* 帯（高さ「帯」のメインビジュアル）は、元の見出し帯と同じ「明るい背景に濃い文字」で出す */
.t-classic [data-block="hero"][data-height="band"] { background: #e9e9e9; color: #444; border-bottom: 1px solid #cecece; }
.t-classic [data-block="hero"][data-height="band"] .b-hero-slide::after { background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.9) 35%, rgba(255,255,255,0) 75%); }
.t-classic [data-block="hero"][data-height="band"] .b-hero-text { padding-inline: 36px; text-shadow: 2px 2px 3px rgba(0,0,0,.18); }
.t-classic [data-block="hero"][data-height="band"] .b-hero-sub { color: #777; letter-spacing: .12em; opacity: 1; }
.t-classic [data-block="hero"][data-height="band"] .b-hero-title { font-size: 1.45rem; letter-spacing: .08em; }
@media (max-width: 640px) {
  .t-classic [data-block="hero"][data-height="band"] .b-hero-text { padding-inline: 16px; }
  .t-classic [data-block="hero"][data-height="band"] .b-hero-title { font-size: 1.2rem; }
}

/* ドロップダウン・メガメニュー（濃いメニューバーと同じ色の面） */
.main-nav .sub, .main-nav .mega { background: var(--c-nav-bg); box-shadow: 0 8px 20px rgba(0,0,0,.35); }
.main-nav .sub a, .main-nav .mega a { color: #fff; font-size: .86rem; padding: 8px 20px; }
.main-nav .sub a:hover, .main-nav .mega a:hover { background: rgba(255,255,255,.12); }
.main-nav .mega a { padding: 4px 0; }
.main-nav .mega-h { border-left: 3px solid var(--c-primary); padding-left: 8px !important; font-size: .92rem !important; }
.main-nav .mega ul a { padding-left: 11px; opacity: .9; }
.main-nav .sub .is-current > a, .main-nav .mega .is-current > a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) { .main-nav .sub, .main-nav .mega { box-shadow: none; } .main-nav .sub a, .main-nav .mega a { border-top: 1px solid rgba(255,255,255,.1); padding-top: 10px; padding-bottom: 10px; } .main-nav .mega-h { border-left: 0; } }

.t-classic { --mega-gap: 3px; }   /* メニューの文字の下端から、メガメニューのパネルまでのすき間 */