/* =============================================
   資材ワールド LP v5 - スタイルシート
   ============================================= */

:root {
  --color-primary: #0a3d62;
  --color-primary-light: #1e6091;
  --color-accent: #e84118;
  --color-accent-dark: #c0392b;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7fb;
  --color-bg-dark: #0a3d62;
  --color-text: #1a1a2e;
  --color-text-secondary: #555e6d;
  --color-border: #dde3ed;
  --color-trust-bg: #f0f4fa;
  --font-main: 'Noto Sans JP', sans-serif;
  --shadow-card: 0 4px 20px rgba(10,61,98,0.10);
  --shadow-btn: 0 4px 14px rgba(232,65,24,0.30);
  --radius-card: 12px;
  --radius-btn: 8px;
  --max-width: 960px;
  --section-pad: 80px 16px;
  --section-pad-sm: 48px 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  font-size: 16px;
  padding-bottom: 70px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* キーボードフォーカス可視化（アクセシビリティ） */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid #ffe066;
  outline-offset: 2px;
}

/* 共通レイアウト */
.lp-container { max-width: var(--max-width); margin: 0 auto; padding: 0 12px; }
.lp-section { padding: var(--section-pad); }
.lp-section--alt { background: var(--color-bg-alt); }
.lp-section-title { font-size: clamp(22px, 4vw, 32px); font-weight: 700; text-align: center; margin-bottom: 16px; line-height: 1.4; }
.lp-section-subtitle { font-size: 15px; color: var(--color-text-secondary); text-align: center; margin-bottom: 48px; line-height: 1.7; }

/* ボタン */
.lp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  text-align: center;
  justify-content: center;
}
.lp-btn:hover { background: var(--color-primary-light); transform: translateY(-2px); }
.lp-btn--accent { background: var(--color-accent); box-shadow: var(--shadow-btn); }
.lp-btn--accent:hover { background: var(--color-accent-dark); }
.lp-btn--large { font-size: 18px; padding: 18px 40px; white-space: nowrap; }

/* ファーストビュー */
.hero { background: linear-gradient(rgba(10,61,98,0.3), rgba(10,61,98,0.3)), url('../image/hero-bg.webp') center/cover no-repeat; color: #fff; padding: 80px 20px 72px; text-align: center; }
.hero .lp-container { background: rgba(255,255,255,0.7); border-radius: 16px; padding: 48px 36px; color: #1a1a2e; max-width: 780px; }
.hero-label { display: inline-flex; align-items: center; gap: 6px; background: var(--color-primary); color: #fff; font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 99px; margin-bottom: 28px; letter-spacing: 0.05em; }
.hero h1 { font-size: clamp(32px, 6vw, 56px); font-weight: 900; line-height: 1.25; margin-bottom: 24px; letter-spacing: -0.01em; }
.hero h1 strong { color: var(--color-accent); }
.hero-sub { font-size: clamp(14px, 2.2vw, 17px); color: var(--color-text-secondary); max-width: 680px; margin: 0 auto 40px; line-height: 1.8; }
.hero-cta-area { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.hero-phone { display: flex; align-items: center; gap: 8px; font-size: 15px; color: var(--color-text-secondary); }
.hero-phone a { color: var(--color-primary); font-weight: 700; text-decoration: underline; }

/* 信頼バー */
.trust-bar { background: var(--color-trust-bg); border-bottom: 1px solid var(--color-border); padding: 28px 20px; }
.trust-bar-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; justify-items: center; }
.trust-item { display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; }
.trust-item i { font-size: 22px; color: var(--color-primary); margin-bottom: 2px; }
.trust-item-number { font-size: 20px; font-weight: 700; color: var(--color-primary); line-height: 1.2; }
.trust-item-label { font-size: 12px; color: var(--color-text-secondary); line-height: 1.5; }

/* お悩み提起 */
.problem-list { display: flex; flex-direction: column; gap: 16px; max-width: 700px; margin: 0 auto 32px; }
.problem-item { display: flex; align-items: flex-start; gap: 14px; background: #fff; border: 1px solid var(--color-border); border-left: 4px solid var(--color-accent); border-radius: 8px; padding: 16px 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.problem-item i { color: var(--color-accent); font-size: 18px; margin-top: 2px; flex-shrink: 0; }
.problem-item p { font-size: 15px; line-height: 1.65; }
.problem-item strong { color: var(--color-accent-dark); }
.problem-resolve { text-align: center; margin-top: 8px; }
.problem-resolve-text { display: inline-flex; align-items: center; gap: 10px; background: var(--color-primary); color: #fff; font-weight: 700; font-size: 17px; padding: 14px 32px; border-radius: 8px; white-space: nowrap; }
.problem-resolve-text i { color: #ffe066; font-size: 20px; }

/* 市場背景テーブル */
.market-table { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 14px; }
.market-table th { background: var(--color-primary); color: #fff; text-align: left; padding: 12px 16px; font-weight: 600; }
.market-table th:first-child { width: 30%; }
.market-table td { padding: 12px 16px; border-bottom: 1px solid var(--color-border); vertical-align: top; line-height: 1.6; }
.market-table tr:nth-child(even) td { background: #f7f9fc; }
.market-note { margin-top: 24px; background: var(--color-primary); color: #fff; border-radius: 8px; padding: 16px 24px; font-size: 14px; font-weight: 600; text-align: center; line-height: 1.7; }

/* ソリューション */
.solution-box { max-width: 780px; margin: 0 auto; }
.solution-text { font-size: 15px; color: var(--color-text-secondary); line-height: 1.95; text-align: left; }
.solution-text strong { color: var(--color-primary); }
.solution-sub-title { font-size: 18px; font-weight: 700; color: var(--color-primary); text-align: center; margin: 40px 0 16px; position: relative; padding-bottom: 12px; }
.solution-sub-title::after { content: ''; display: block; width: 40px; height: 3px; background: var(--color-accent); position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); }
.solution-sub-lead { text-align: center; font-size: 14px; color: var(--color-text-secondary); margin-bottom: 20px; }
.bases-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; box-shadow: var(--shadow-card); border-radius: 8px; overflow: hidden; }
.bases-table th { background: var(--color-primary); color: #fff; padding: 14px 16px; font-weight: 600; text-align: left; font-size: 14px; }
.bases-table th:nth-child(1) { width: 28%; }
.bases-table th:nth-child(2) { width: 32%; }
.bases-table td { padding: 14px 16px; vertical-align: top; line-height: 1.7; background: #fff; border-bottom: 1px solid var(--color-border); }
.bases-table tr:last-child td { border-bottom: none; }
.bases-table .base-name { font-weight: 700; color: var(--color-primary); font-size: 15px; white-space: nowrap; }
.bases-table .base-name small { display: block; font-size: 12px; color: var(--color-text-secondary); font-weight: 500; margin-top: 2px; }

/* CTAセクション */
.cta-section { background: linear-gradient(135deg, #e84118 0%, #c0392b 100%); color: #fff; padding: 48px 20px; text-align: center; }
.cta-lead { font-size: 16px; margin-bottom: 24px; opacity: 0.92; }
.cta-phone-row { margin-top: 16px; font-size: 14px; opacity: 0.85; }
.cta-phone-row a { color: #fff; font-weight: 700; text-decoration: underline; }
.cta-section .lp-btn { background: #fff; color: var(--color-accent); }
.cta-section .lp-btn:hover { background: #f8f8f8; }

/* 構造比較 */
.structure-lead { max-width: 720px; margin: 0 auto 32px; font-size: 15px; line-height: 1.85; color: var(--color-text-secondary); text-align: left; }
.structure-lead strong { color: var(--color-accent-dark); font-weight: 700; }
.structure-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 8px; }
.structure-card { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); }
.structure-card-title { font-size: 14px; font-weight: 700; padding: 12px 20px; text-align: center; }
.structure-card--before .structure-card-title { background: #c0392b; color: #fff; }
.structure-card--after .structure-card-title { background: var(--color-primary); color: #fff; }
.structure-card-body { background: #fff; padding: 20px; }
.structure-flow { display: flex; flex-direction: column; align-items: center; gap: 0; }
.structure-node { background: #f0f4fa; border: 1px solid var(--color-border); border-radius: 6px; padding: 8px 16px; font-size: 14px; font-weight: 600; text-align: center; width: 100%; }
.structure-node--factory { background: #eaf4ff; border-color: var(--color-primary); color: var(--color-primary); }
.structure-node--mbj { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.structure-arrow-down { display: flex; flex-direction: column; align-items: center; gap: 0; width: 100%; }
.structure-arrow-line { width: 2px; height: 10px; background: var(--color-border); }
.structure-margin-tag { font-size: 11px; font-weight: 700; color: var(--color-accent); background: #fff0ee; border: 1px solid var(--color-accent); border-radius: 4px; padding: 2px 8px; margin: 2px 0; }
.structure-direct-tag { font-size: 11px; font-weight: 700; color: var(--color-primary); background: #eaf4ff; border: 1px solid var(--color-primary); border-radius: 4px; padding: 2px 8px; margin: 2px 0; }
.structure-note { margin-top: 12px; font-size: 13px; color: var(--color-text-secondary); text-align: center; line-height: 1.6; }
.structure-note--bad { color: var(--color-accent); font-weight: 600; }
.structure-note--good { color: var(--color-primary); font-weight: 600; margin-top: 12px; }
.structure-closing { max-width: 720px; margin: 32px auto 0; font-size: 15px; line-height: 1.85; color: var(--color-text-secondary); text-align: left; background: #fff; border-left: 4px solid var(--color-primary); padding: 20px 24px; border-radius: 4px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.solution-box .structure-closing { margin-top: 32px; }
.structure-closing strong { color: var(--color-primary); }

/* 3つの強み */
.strength-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 8px; }
.strength-card { background: #fff; border-radius: var(--radius-card); padding: 32px 24px; text-align: center; box-shadow: var(--shadow-card); border-top: 4px solid var(--color-primary); }
.strength-card i { font-size: 36px; color: var(--color-primary); margin-bottom: 16px; }
.strength-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--color-primary); }
.strength-card .strength-sub { font-size: 13px; font-weight: 700; color: var(--color-accent); margin-bottom: 12px; }
.strength-card p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.8; }

/* 代表メッセージ */
.message-box { max-width: 760px; margin: 0 auto; background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 40px 48px; border-top: 4px solid var(--color-primary); position: relative; }
.message-quote-icon { position: absolute; top: -18px; left: 32px; background: var(--color-primary); color: #fff; width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.message-name-row { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--color-border); }
.message-name-text .message-company { font-size: 12px; color: var(--color-text-secondary); margin-bottom: 2px; }
.message-name-text .message-title { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 2px; }
.message-name-text .message-name { font-size: 18px; font-weight: 700; color: var(--color-primary); }
.message-body p { font-size: 15px; line-height: 1.95; color: var(--color-text-secondary); margin-bottom: 16px; }
.message-body p:last-child { margin-bottom: 0; }
.message-body strong { color: var(--color-primary); font-weight: 700; }

/* 対応商品・資材一覧 */
.products-intro { text-align: center; font-size: 14px; color: var(--color-text-secondary); margin-bottom: 40px; }
.products-section-heading { margin-top: 2em; margin-bottom: 0.5em; font-size: 1.1em; text-align: center; font-size: 14px; color: var(--color-text-secondary); }
.products-section-heading i { margin-right: 0.3em; }
.product-category { margin-bottom: 40px; }
.product-category-header { display: flex; align-items: center; gap: 12px; background: var(--color-primary); color: #fff; border-radius: 8px 8px 0 0; padding: 14px 20px; }
.product-category-header i { font-size: 18px; color: #ffe066; }
.product-category-title { font-size: 16px; font-weight: 700; }
.product-category-desc { font-size: 12px; color: rgba(255,255,255,0.75); margin-top: 2px; }
.product-category-body { background: #fff; border: 1px solid var(--color-border); border-top: none; border-radius: 0 0 8px 8px; padding: 20px 24px; }
.product-list { display: flex; flex-wrap: wrap; gap: 6px; }
.product-tag { display: inline-block; background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 4px; padding: 3px 10px; font-size: 12px; color: var(--color-text); font-weight: 500; line-height: 1.5; }
.products-closing { text-align: center; margin-top: 16px; font-size: 14px; color: var(--color-text-secondary); background: var(--color-bg-alt); border-radius: 8px; padding: 16px 20px; }
.products-closing strong { color: var(--color-primary); }

/* ご利用の流れ */
.flow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; margin-top: 8px; }
.flow-step { background: #fff; border-radius: var(--radius-card); padding: 28px 24px; box-shadow: var(--shadow-card); text-align: center; position: relative; }
.flow-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; color: var(--color-primary); }
.flow-step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; text-align: left; }
.flow-step i.step-icon { display: block; font-size: 28px; color: var(--color-primary); margin-bottom: 12px; }
.flow-note { margin-top: 28px; background: #eaf4ff; border: 1px solid var(--color-primary); border-radius: 8px; padding: 14px 20px; text-align: center; font-size: 14px; color: var(--color-primary); font-weight: 600; }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; text-align: left; }
.faq-item { border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; background: #fff; }
.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  background: #fff;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-main);
  color: var(--color-text);
  line-height: 1.6;
  transition: background 0.2s;
}
.faq-question:hover { background: #f8fafc; }
.faq-q-icon { color: var(--color-accent); font-weight: 700; font-size: 16px; flex-shrink: 0; }
.faq-q-text { flex: 1; }
.faq-arrow {
  margin-left: auto;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 16px 20px 18px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--color-border);
}

/* 最終CTA・フォーム */
.final-cta { background: var(--color-bg-alt); padding: var(--section-pad); text-align: center; }
.final-cta .lp-section-subtitle { margin-bottom: 32px; }
.form-wrapper { background: #fff; border-radius: 16px; box-shadow: var(--shadow-card); padding: 40px 40px; max-width: 600px; margin: 0 auto; text-align: left; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
.required { font-size: 11px; font-weight: 700; color: #fff; background: var(--color-accent); border-radius: 4px; padding: 2px 6px; margin-left: 6px; }
.optional { font-size: 11px; color: var(--color-text-secondary); background: #e9ecef; border-radius: 4px; padding: 2px 6px; margin-left: 6px; }
.form-input, .form-textarea { display: block; width: 100%; font-family: var(--font-main); font-size: 15px; border: 1.5px solid var(--color-border); border-radius: 8px; padding: 12px 14px; color: var(--color-text); transition: border-color 0.2s; background: #fafbfc; }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--color-primary); background: #fff; }
.form-textarea { height: 120px; resize: vertical; }
.form-submit-area { margin-top: 24px; }
.form-submit-btn { width: 100%; justify-content: center; font-size: 17px; padding: 18px; }
.form-phone-area { margin-top: 20px; text-align: center; padding-top: 20px; border-top: 1px solid var(--color-border); }
.form-phone-area p { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 6px; }
.form-phone-area a { font-size: 24px; font-weight: 700; color: var(--color-primary); display: inline-flex; align-items: center; gap: 8px; }
.form-note { margin-top: 20px; font-size: 13px; color: var(--color-text-secondary); text-align: center; }
.form-note i { color: var(--color-primary); margin-right: 4px; }

/* フッター */
.lp-footer { background: #0d1f35; color: rgba(255,255,255,0.75); padding: 48px 20px 24px; }
.footer-main { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-company-name { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-address { font-size: 13px; line-height: 1.7; margin-bottom: 10px; }
.footer-address i { margin-right: 6px; color: rgba(255,255,255,0.5); }
.footer-map-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: #82c4f8; margin-top: 4px; }
.footer-contact-heading { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.footer-contact-hours { font-size: 12px; margin-bottom: 8px; }
.footer-contact-tel { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-contact-tel a { color: #fff; }
.footer-contact-block { margin-bottom: 20px; }
.footer-form-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: #82c4f8; }
.footer-site-heading { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.footer-site-link { font-size: 14px; color: #82c4f8; }
.footer-bottom { max-width: var(--max-width); margin: 20px auto 0; text-align: center; font-size: 12px; }

/* フローティングCTA */
.floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10,61,98,0.97);
  backdrop-filter: blur(6px);
  z-index: 100;
  border-top: 1px solid rgba(255,255,255,0.15);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}
.floating-cta.visible { transform: translateY(0); }
.floating-cta-inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 20px; padding: 10px 16px; }
.floating-cta-phone { display: flex; align-items: center; gap: 6px; color: #fff; font-size: 15px; font-weight: 700; white-space: nowrap; }
.floating-cta-phone i { color: #ffe066; }
.floating-cta-phone a { color: #fff; }
.floating-cta .lp-btn { font-size: 15px; padding: 12px 24px; }

/* スクロールフェードインアニメーション */
.fade-in-section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* モーション削減設定への配慮 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-in-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .floating-cta { transition: none; }
  .faq-arrow { transition: none; }
  .faq-answer { transition: none; }
}

.sp-only { display: none; }

/* レスポンシブ */
@media (max-width: 768px) {
  .sp-only { display: inline; }
  .structure-grid { grid-template-columns: 1fr; }
  .strength-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; }
  .trust-bar-inner { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
  .form-wrapper { padding: 20px 14px; }
  .lp-section { padding: var(--section-pad-sm); }
  .floating-cta-phone { display: none; }
  .floating-cta-inner { padding: 10px 16px; }
  .floating-cta .lp-btn { width: 100%; font-size: 15px; padding: 14px 16px; justify-content: center; }
  .product-category-body { padding: 14px 12px; }
  .product-category-header { padding: 12px 14px; }
  .lp-container { padding: 0 10px; }
  .message-box { padding: 32px 20px 28px; }
  .bases-table th, .bases-table td { padding: 10px 12px; font-size: 13px; }
  .bases-table .base-name { white-space: normal; }
}
@media (max-width: 480px) {
  .hero { padding: 48px 12px 44px; }
  .trust-item-number { font-size: 14px; }
  .trust-item-label { font-size: 11px; }
  .trust-bar-inner { gap: 20px 8px; }
  .lp-section-title { font-size: 20px; }
  .problem-resolve-text { font-size: 15px; padding: 14px 20px; }
  .lp-btn--large { font-size: 15px; padding: 16px 20px; }
}