@import url('https://fonts.googleapis.com/css2?family=Jost:wght@400;500&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap');

/* =========================================================
   CUVIC SAITAMA / 金属看板（ステンレス腐食銘板・エッチング銘板）
   接頭辞: etlp  /  スラッグ: stainless-steel-nameplate
   ========================================================= */

.etlp-root {
  --etlp-bg: #f5f9fc;
  --etlp-blue-50: #e8f1f8;
  --etlp-blue-100: #d3e4f0;
  --etlp-blue-300: #8fb4d1;
  --etlp-blue-600: #3f6e93;
  --etlp-navy: #22415c;
  --etlp-amber-50: #f9f2e6;
  --etlp-amber-300: #d9ab63;
  --etlp-amber-600: #a2762c;
  --etlp-text: #33424f;
  --etlp-cyan: #3aa6cf;
  --etlp-magenta: #c9257e;
  --etlp-en: "futura-pt", "Jost", sans-serif;
  --etlp-jp: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;

  width: 100vw; max-width: none;
  margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw);
  font-family: var(--etlp-jp); color: var(--etlp-text);
  background: var(--etlp-bg); line-height: 1.9; font-size: 16px;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
.etlp-root *, .etlp-root *::before, .etlp-root *::after { box-sizing: border-box; }
.etlp-root img { max-width: 100%; height: auto; display: block; }

/* wpautop対策 */
.etlp-root > p:empty, .etlp-root > br,
.etlp-slider__track > p:empty, .etlp-slider__track > br,
.etlp-finish-grid > p:empty, .etlp-finish-grid > br,
.etlp-combo-grid > p:empty, .etlp-combo-grid > br,
.etlp-merit-grid > p:empty, .etlp-merit-grid > br,
.etlp-use-grid > p:empty, .etlp-use-grid > br,
.etlp-faq > p:empty, .etlp-faq > br,
.etlp-sum__needs > p:empty, .etlp-sum__needs > br,
.etlp-sum-btns > p:empty, .etlp-sum-btns > br,
.etlp-other-grid > p:empty, .etlp-other-grid > br { display: none !important; }

/* ---------- 共通レイアウト ---------- */
.etlp-sect { padding: 76px 5%; }
.etlp-inner { max-width: 1040px; margin: 0 auto !important; }
.etlp-sect--bg { background: var(--etlp-bg); }
.etlp-sect--white { background: #fff; }
.etlp-sect--blue { background: var(--etlp-blue-50); }
.etlp-sect--navy { background: var(--etlp-navy); color: #fff; }

/* ---------- 見出しパーツ ---------- */
.etlp-root .etlp-eyebrow {
  display: block; text-align: center; font-family: var(--etlp-en);
  font-size: 13px; font-weight: 500; letter-spacing: .28em; text-transform: uppercase;
  color: var(--etlp-amber-600); margin: 0 0 14px !important;
}
.etlp-root h2.etlp-secttl {
  text-align: center; font-family: var(--etlp-jp);
  font-size: clamp(21px, 2.8vw, 28px) !important; font-weight: 700;
  color: var(--etlp-navy); line-height: 1.5; margin: 0 auto 18px !important; padding: 0 !important;
}
.etlp-sect--navy h2.etlp-secttl { color: #fff; }
.etlp-root .etlp-sectlead {
  max-width: 820px; margin: 0 auto !important; text-align: center;
  font-size: 15.5px; color: var(--etlp-text);
}
.etlp-root h2.etlp-secttl::after {
  content: ""; display: block; width: 46px; height: 2px;
  background: var(--etlp-amber-300); margin: 16px auto 0;
}

/* =========================================================
   1. ヒーロー
   ========================================================= */
.etlp-hero {
  position: relative; min-height: 480px; display: flex;
  align-items: center; justify-content: center; text-align: center;
  padding: 90px 6%; background: var(--etlp-navy); overflow: hidden;
}
.etlp-root .etlp-hero .etlp-hero__bg {
  position: absolute !important; inset: 0 !important; top: 0 !important; left: 0 !important;
  width: 100% !important; height: 100% !important; min-height: 100% !important;
  max-width: none !important; object-fit: cover !important; object-position: center !important;
  opacity: .45;
}
.etlp-hero__inner { position: relative; z-index: 2; color: #fff; }
.etlp-hero__en {
  display: block; font-family: var(--etlp-en); letter-spacing: .3em; font-size: 14px;
  color: var(--etlp-amber-300); margin-bottom: 18px; text-transform: uppercase;
}
.etlp-hero__ttl {
  font-family: var(--etlp-jp); font-weight: 700; font-size: clamp(24px, 4.2vw, 42px);
  line-height: 1.45; margin: 0; text-shadow: 0 2px 18px rgba(0,0,0,.4);
}
.etlp-hero__sub { margin-top: 20px; font-size: 15px; color: rgba(255,255,255,.9); }

/* =========================================================
   2. 上部スライダー
   ========================================================= */
.etlp-slider { background: #fff; padding: 46px 0 50px; overflow: hidden; }
.etlp-slider__view { overflow: hidden; width: 100%; }
.etlp-slider__track { display: flex; gap: 18px; width: max-content; animation: etlp-marquee 44s linear infinite; }
.etlp-slider:hover .etlp-slider__track { animation-play-state: paused; }
.etlp-slide {
  flex: 0 0 auto; width: 340px; aspect-ratio: 4 / 3; border-radius: 10px; overflow: hidden;
  box-shadow: 0 6px 18px rgba(34,65,92,.12);
}
.etlp-slide img { width: 100%; height: 100%; object-fit: cover; }
@keyframes etlp-marquee { from { transform: translateX(0); } to { transform: translateX(calc(-50% - 9px)); } }

/* =========================================================
   3. 腐食銘板とは
   ========================================================= */
.etlp-intro__lead {
  max-width: 880px; margin: 0 auto 22px !important; text-align: center; font-size: 16px;
}
.etlp-intro__lead strong { color: var(--etlp-navy); font-weight: 700; }
.etlp-intro__body { max-width: 860px; margin: 0 auto !important; font-size: 15px; }
.etlp-intro__body p { margin: 0 0 12px; }
.etlp-intro__body p:last-child { margin-bottom: 0; }
.etlp-intro__note { color: var(--etlp-amber-600); font-weight: 500; font-size: 14px; }

/* =========================================================
   4. 表面加工（凹部／凸部）中央に画像・左右に説明
   ========================================================= */
.etlp-surface {
  display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 24px;
  align-items: center; margin-top: 44px;
}
.etlp-surface__fig {
  margin: 0; border-radius: 14px; overflow: hidden; aspect-ratio: 1 / 1;
  background: var(--etlp-blue-50); border: 1px solid var(--etlp-blue-100); cursor: zoom-in;
}
.etlp-surface__fig img { width: 100%; height: 100%; object-fit: contain; }
.etlp-surface__card {
  background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 12px; padding: 24px 22px; height: 100%;
}
.etlp-surface__tag {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px;
  color: var(--etlp-navy); margin-bottom: 12px;
}
.etlp-surface__tag i {
  width: 30px; height: 30px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--etlp-en); font-weight: 700; font-size: 15px; font-style: normal;
}
.etlp-surface__tag--concave i { background: var(--etlp-magenta); }
.etlp-surface__tag--convex i { background: var(--etlp-cyan); }
.etlp-surface__card p { font-size: 14px; margin: 0; }

/* =========================================================
   5. 凸部・凹部の種類
   ========================================================= */
.etlp-finish-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; align-items: stretch; margin-top: 44px;
}
.etlp-finish-card {
  height: 100%; background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 14px;
  padding: 30px 28px 32px; text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
}
.etlp-finish-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(34,65,92,.14); }
.etlp-finish-card__img {
  width: 200px; height: 200px; margin: 0 auto 20px; border-radius: 50%; overflow: hidden;
  background: var(--etlp-blue-50); box-shadow: inset 0 0 0 1px rgba(34,65,92,.08); cursor: zoom-in;
}
.etlp-finish-card__img img { width: 100%; height: 100%; object-fit: cover; }
.etlp-finish-card__ttl { font-weight: 700; font-size: 17px; color: var(--etlp-navy); margin-bottom: 12px; }
.etlp-finish-card__desc { font-size: 14px; }
.etlp-finish-note {
  max-width: 820px; margin: 34px auto 0; text-align: center; font-size: 14.5px;
  color: var(--etlp-amber-600); font-weight: 500;
}

/* =========================================================
   6. 凹部・凸部の組み合わせ事例（2×2）
   ========================================================= */
.etlp-combo-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; align-items: stretch; margin-top: 44px;
}
.etlp-combo-card {
  height: 100%; background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 14px; overflow: hidden;
}
.etlp-combo-card__img { width: 100%; aspect-ratio: 2 / 1; background: var(--etlp-blue-50); cursor: zoom-in; }
.etlp-combo-card__img img { width: 100%; height: 100%; object-fit: cover; }
.etlp-combo-card__body { padding: 18px 20px 22px; }
.etlp-combo-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.etlp-combo-row:last-child { margin-bottom: 0; }
.etlp-combo-row i {
  flex: 0 0 auto; width: 28px; height: 28px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--etlp-en); font-weight: 700; font-size: 14px; font-style: normal;
}
.etlp-combo-row--convex i { background: var(--etlp-cyan); }
.etlp-combo-row--concave i { background: var(--etlp-magenta); }
.etlp-combo-row span { font-size: 14px; font-weight: 500; }

/* =========================================================
   7. 3つのメリット
   ========================================================= */
.etlp-merit-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; margin-top: 44px;
}
.etlp-merit-card {
  height: 100%; background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 14px; padding: 30px 24px 32px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.etlp-merit-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(34,65,92,.14); }
.etlp-merit-card__no { font-family: var(--etlp-en); font-weight: 700; font-size: 26px; color: var(--etlp-amber-300); line-height: 1; margin-bottom: 12px; }
.etlp-merit-card__ttl { font-weight: 700; font-size: 17px; color: var(--etlp-navy); margin-bottom: 12px; line-height: 1.5; }
.etlp-merit-card__desc { font-size: 14px; }

/* =========================================================
   8. 主な用途・おすすめ設置場所
   ========================================================= */
.etlp-use-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; margin-top: 40px;
}
.etlp-use-card {
  height: 100%; background: var(--etlp-blue-50); border: 1px solid var(--etlp-blue-100); border-radius: 12px; padding: 24px 22px;
}
.etlp-use-card__ttl {
  font-weight: 700; font-size: 15.5px; color: var(--etlp-navy); margin-bottom: 10px;
  padding-left: 12px; border-left: 4px solid var(--etlp-amber-300); line-height: 1.4;
}
.etlp-use-card__list { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.etlp-use-card__list li { position: relative; padding-left: 18px; margin-bottom: 4px; }
.etlp-use-card__list li::before { content: "・"; position: absolute; left: 0; color: var(--etlp-amber-600); }

/* =========================================================
   9. FAQ
   ========================================================= */
.etlp-faq { max-width: 880px; margin: 44px auto 0; }
.etlp-faq__item { background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 10px; margin-bottom: 14px; overflow: hidden; }
.etlp-root button.etlp-faq__q {
  width: 100%; display: flex; align-items: center; gap: 14px; background: #fff; border: none;
  padding: 20px 22px; cursor: pointer; text-align: left; font-family: var(--etlp-jp);
  font-size: 16px; font-weight: 700; color: var(--etlp-navy); line-height: 1.5;
}
.etlp-faq__q .etlp-faq__mark {
  flex: 0 0 auto; width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--etlp-blue-600); color: #fff; font-family: var(--etlp-en); font-weight: 700; border-radius: 5px; font-size: 14px;
}
.etlp-faq__q .etlp-faq__toggle { margin-left: auto; flex: 0 0 auto; width: 22px; height: 22px; position: relative; }
.etlp-faq__q .etlp-faq__toggle::before, .etlp-faq__q .etlp-faq__toggle::after { content: ""; position: absolute; background: var(--etlp-blue-600); left: 50%; top: 50%; }
.etlp-faq__q .etlp-faq__toggle::before { width: 2px; height: 14px; transform: translate(-50%,-50%); }
.etlp-faq__q .etlp-faq__toggle::after { width: 14px; height: 2px; transform: translate(-50%,-50%); }
.etlp-faq__item.is-open .etlp-faq__toggle::before { opacity: 0; }
.etlp-faq__a { display: none; padding: 0 22px 22px 64px; }
.etlp-faq__item.is-open .etlp-faq__a { display: block; }
.etlp-faq__a-inner { display: flex; gap: 14px; align-items: flex-start; border-top: 1px dashed var(--etlp-blue-100); padding-top: 18px; }
.etlp-faq__a .etlp-faq__mark--a {
  flex: 0 0 auto; width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center;
  background: #c0655f; color: #fff; font-family: var(--etlp-en); font-weight: 700; border-radius: 5px; font-size: 14px; margin-left: -50px;
}
.etlp-faq__a p { margin: 0 0 8px; font-size: 14.5px; }
.etlp-faq__a p:last-child { margin-bottom: 0; }

/* =========================================================
   10. まとめ
   ========================================================= */
.etlp-sum { text-align: center; }
.etlp-sum__body { max-width: 840px; margin: 0 auto 24px !important; font-size: 15px; text-align: center; }
.etlp-sum__body p { margin: 0 0 12px; }
.etlp-sum__body p:last-child { margin-bottom: 0; }
.etlp-sum__needs { max-width: 560px; margin: 0 auto 30px; list-style: none; padding: 0; text-align: left; }
.etlp-sum__needs li {
  position: relative; padding: 12px 16px 12px 46px; background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18); border-radius: 8px; margin-bottom: 10px; font-weight: 700; font-size: 14.5px;
}
.etlp-sum__needs li::before { content: "✓"; position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--etlp-amber-300); font-weight: 700; }
.etlp-sum-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 6px; }

/* ---------- ボタン ---------- */
.etlp-root .etlp-btn {
  display: inline-block; min-width: 240px; padding: 16px 32px; background: var(--etlp-navy);
  color: #fff !important; text-decoration: none !important; font-weight: 500; font-size: 15px;
  border-radius: 6px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.etlp-root .etlp-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(34,65,92,.28); }
.etlp-root .etlp-btn--amber { background: var(--etlp-amber-600); }
.etlp-root .etlp-btn--line { background: #33aa5e; }

/* =========================================================
   11. 他の看板8種
   ========================================================= */
.etlp-other-grid { display: grid !important; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: stretch; margin-top: 40px; }
.etlp-root a.etlp-other-card {
  display: flex !important; flex-direction: column !important; height: 100%;
  background: #fff; border: 1px solid var(--etlp-blue-100); border-radius: 12px;
  overflow: hidden; text-decoration: none !important; color: var(--etlp-navy) !important;
  transition: transform .22s ease, box-shadow .22s ease;
}
.etlp-root a.etlp-other-card:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(34,65,92,.16); }
.etlp-root a.etlp-other-card .etlp-other-card__img {
  display: block !important; width: 100% !important; aspect-ratio: 4 / 3; height: auto;
  background: var(--etlp-blue-50); overflow: hidden; flex: 0 0 auto;
}
@supports not (aspect-ratio: 1 / 1) { .etlp-root a.etlp-other-card .etlp-other-card__img { height: 165px !important; } }
.etlp-root a.etlp-other-card .etlp-other-card__img img { display: block !important; width: 100% !important; height: 100% !important; object-fit: cover !important; }
.etlp-root a.etlp-other-card .etlp-other-card__name {
  display: block !important; text-align: center !important; font-weight: 700 !important; font-size: 14.5px !important;
  color: var(--etlp-navy) !important; padding: 14px 8px 16px !important; margin: 0 !important; line-height: 1.5 !important;
}

/* =========================================================
   ライトボックス
   ========================================================= */
.etlp-lightbox[hidden] { display: none; }
.etlp-lightbox {
  position: fixed; inset: 0; z-index: 9999; background: rgba(17,28,38,.9);
  display: flex; align-items: center; justify-content: center; padding: 5vw; cursor: zoom-out;
}
.etlp-lightbox img { max-width: 92vw; max-height: 90vh; border-radius: 6px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.etlp-lightbox__close {
  position: absolute; top: 20px; right: 26px; width: 44px; height: 44px;
  background: rgba(255,255,255,.12); border: none; border-radius: 50%; color: #fff; font-size: 26px; cursor: pointer; line-height: 1;
}

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width: 900px) {
  .etlp-surface { grid-template-columns: 1fr !important; }
  .etlp-surface__fig { order: -1; max-width: 420px; margin: 0 auto; aspect-ratio: 4 / 3; }
  .etlp-combo-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .etlp-merit-grid { grid-template-columns: 1fr !important; max-width: 480px; margin-left: auto; margin-right: auto; }
  .etlp-use-grid { grid-template-columns: 1fr !important; max-width: 480px; margin-left: auto; margin-right: auto; }
  .etlp-other-grid { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 640px) {
  .etlp-sect { padding: 56px 6%; }
  .etlp-hero { min-height: 400px; padding: 70px 6%; }
  .etlp-slide { width: 260px; }
  .etlp-finish-grid { grid-template-columns: 1fr !important; }
  .etlp-combo-grid { grid-template-columns: 1fr !important; }
  .etlp-other-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .etlp-btn { width: 100%; min-width: 0; }
}

/* =========================================================
   5b. 凹部の種類（4カラム）— 凸部の仕上げの下に追加
   ========================================================= */
.etlp-finish-lead {
  max-width: 900px; margin: 0 auto 6px !important; text-align: center; font-size: 14.5px;
}
.etlp-finish-lead p { margin: 0 0 6px; }
.etlp-finish-grid--4 { grid-template-columns: repeat(4, 1fr); gap: 20px; }
.etlp-finish-grid--4 .etlp-finish-card { padding: 26px 18px 28px; border-top: 3px solid var(--etlp-magenta); }
.etlp-finish-grid--4 .etlp-finish-card__img { width: 150px; height: 150px; margin-bottom: 18px; }
.etlp-finish-grid--4 .etlp-finish-card__ttl { font-size: 15px; }
.etlp-finish-grid--4 .etlp-finish-card__desc { font-size: 13.5px; text-align: left; }
@media (max-width: 900px) { .etlp-finish-grid--4 { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 640px) { .etlp-finish-grid--4 { grid-template-columns: 1fr !important; } .etlp-finish-grid--4 .etlp-finish-card__desc { text-align: center; } }