/* 掲載文AI サイト共通CSS */
:root {
  --ink: #1c2b3a;
  --ink-soft: #44566b;
  --bg: #f5f7f8;
  --panel: #ffffff;
  --accent: #ce3a2b;
  --accent-dark: #a92e22;
  --line: #d8dee3;
  --ok: #2e6e4e;
  --radius: 10px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
}

h1, h2, h3, .display {
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-weight: 600;
  line-height: 1.4;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* ヘッダー */
.site-header {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.site-header .container { display: flex; justify-content: space-between; align-items: center; }
.brand {
  font-family: "Shippori Mincho", serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}
.brand small { font-size: 12px; color: var(--ink-soft); font-family: "Noto Sans JP", sans-serif; margin-left: 8px; }
.header-cta {
  font-size: 14px; text-decoration: none; color: var(--ink);
  border: 1px solid var(--line); border-radius: 6px; padding: 8px 14px;
}
.header-cta:hover { border-color: var(--ink); }

/* ヒーロー */
.hero { padding: 56px 0 40px; }
.hero h1 { font-size: clamp(26px, 5vw, 40px); margin-bottom: 16px; }
.hero .lede { font-size: 17px; color: var(--ink-soft); max-width: 640px; margin-bottom: 28px; }
.hero .lede strong { color: var(--ink); }

.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  padding: 16px 36px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}
.cta-btn:hover { background: var(--accent-dark); }
.cta-note { font-size: 13px; color: var(--ink-soft); margin-top: 10px; }

/* Before/After 車両カード比較(シグネチャー) */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 40px 0 8px; }
@media (max-width: 720px) { .compare { grid-template-columns: 1fr; } }

.listing-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.listing-card .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.listing-card.before .tag { background: #eceff2; color: var(--ink-soft); }
.listing-card.after .tag { background: var(--accent); color: #fff; }
.listing-card .card-head {
  padding: 14px 18px 0;
}
.listing-card .car-name { font-weight: 700; font-size: 15px; font-family: "Noto Sans JP", sans-serif; }
.listing-card .car-spec { font-size: 12px; color: var(--ink-soft); border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.listing-card .card-body { padding: 12px 18px 18px; font-size: 13.5px; }
.listing-card.before .card-body { color: var(--ink-soft); }
.listing-card .card-body p + p { margin-top: 8px; }
.listing-card .points { list-style: none; margin-top: 8px; }
.listing-card .points li { padding-left: 1.2em; text-indent: -1.2em; }
.listing-card .points li::before { content: "◎ "; color: var(--accent); font-weight: 700; }

/* セクション共通 */
.section { padding: 56px 0; }
.section.alt { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: clamp(22px, 4vw, 30px); margin-bottom: 8px; }
.section .section-lede { color: var(--ink-soft); margin-bottom: 32px; }

/* 課題 */
.pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 720px) { .pains { grid-template-columns: 1fr; } }
.pain {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px;
}
.section.alt .pain { background: var(--bg); }
.pain h3 { font-size: 17px; margin-bottom: 8px; }
.pain p { font-size: 14px; color: var(--ink-soft); }

/* 使い方ステップ */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: block;
  font-family: "Shippori Mincho", serif;
  font-size: 34px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 10px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--ink-soft); }

/* 料金 */
.price-card {
  background: var(--panel);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  max-width: 480px;
  margin: 0 auto;
  padding: 32px;
  text-align: center;
}
.price-card .plan-name { font-size: 15px; font-weight: 700; letter-spacing: 0.1em; }
.price-card .price {
  font-family: "Shippori Mincho", serif;
  font-size: 46px;
  font-weight: 700;
  margin: 6px 0;
}
.price-card .price small { font-size: 16px; font-weight: 400; }
.price-card ul { list-style: none; text-align: left; margin: 18px 0 24px; font-size: 14.5px; }
.price-card ul li { padding: 7px 0 7px 1.6em; text-indent: -1.6em; border-bottom: 1px dashed var(--line); }
.price-card ul li::before { content: "✓ "; color: var(--ok); font-weight: 700; }
.price-compare { font-size: 13px; color: var(--ink-soft); text-align: center; margin-top: 14px; }

/* FAQ */
.faq-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; padding: 18px 22px; }
.faq-item h3 { font-size: 15.5px; font-family: "Noto Sans JP", sans-serif; font-weight: 700; margin-bottom: 6px; }
.faq-item h3::before { content: "Q. "; color: var(--accent); }
.faq-item p { font-size: 14px; color: var(--ink-soft); }
.faq-item p::before { content: "A. "; color: var(--ok); font-weight: 700; }

/* フォーム */
.form-panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  max-width: 560px; margin: 0 auto; padding: 30px;
}
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.form-field label .req { color: var(--accent); font-size: 12px; margin-left: 6px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  font-size: 16px;
  font-family: inherit;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
}
.form-field input:focus, .form-field textarea:focus {
  outline: 2px solid var(--ink); outline-offset: 1px;
}
.form-field .hint { font-size: 12.5px; color: var(--ink-soft); margin-top: 4px; }
.form-errors {
  background: #fdf0ee; border: 1px solid var(--accent); border-radius: 6px;
  color: var(--accent-dark); font-size: 14px; padding: 12px 16px; margin-bottom: 18px;
}
.form-success {
  background: #eef6f1; border: 1px solid var(--ok); border-radius: 6px;
  color: var(--ok); font-size: 15px; font-weight: 700; padding: 14px 18px; margin-bottom: 18px;
}
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* フッター */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  font-size: 13px;
  color: var(--ink-soft);
}
.site-footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.site-footer a { color: var(--ink-soft); }