/* ============================================
   LPに追加した要素（コラム導線）のスタイル
   既存LPのデザインに合わせた水色ベース
   ============================================ */

/* サブナビ（ヘッダー直下） */
.lp-subnav {
  background: #50c0e9;
  border-top: 1px solid rgba(255, 255, 255, 0.4);
}
.lp-subnav ul {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.lp-subnav ul::-webkit-scrollbar { display: none; }
.lp-subnav li { flex: 0 0 auto; }
.lp-subnav a {
  display: block;
  padding: 11px 18px;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background 0.2s;
}
.lp-subnav a:hover { background: rgba(255, 255, 255, 0.18); color: #fff; }
.lp-subnav .is-column a {
  background: #fff;
  color: #0079c4;
  border-radius: 999px;
  margin: 6px 8px;
  padding: 5px 18px;
}
.lp-subnav .is-column a::before { content: "\270E\00a0"; }
.lp-subnav .is-column a:hover { background: #fffbbc; color: #0079c4; }
@media (max-width: 768px) {
  .lp-subnav ul { justify-content: flex-start; padding: 0 6px; }
  .lp-subnav a { font-size: 13px; padding: 10px 11px; }
  .lp-subnav .is-column a { padding: 4px 12px; margin: 6px 4px; }
}

/* お役立ちコラム（新着） */
.lp-column {
  background: #eef9fe;
  padding: 72px 20px 80px;
}
.lp-column__inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.lp-column__en {
  font-family: futura-pt, "Inter", sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.2em;
  color: #50c0e9;
  margin: 0 0 4px;
}
.lp-column__title {
  font-size: 36px;
  font-weight: 900;
  color: #0079c4;
  margin: 0 0 16px;
  line-height: 1.4;
}
.lp-column__lead {
  font-size: 16px;
  color: #444;
  margin: 0 0 40px;
}
.lp-column__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}
.lp-column__card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: #222;
  box-shadow: 0 6px 20px rgba(0, 121, 196, 0.12);
  transition: transform 0.2s, box-shadow 0.2s;
}
.lp-column__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 121, 196, 0.2);
  color: #222;
}
.lp-column__thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #dff3fb; }
.lp-column__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; margin: 0; }
.lp-column__body { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 22px; flex: 1; }
.lp-column__cat {
  align-self: flex-start;
  background: #50c0e9;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
}
.lp-column__name { font-weight: 700; font-size: 17px; line-height: 1.6; }
.lp-column__date { font-size: 13px; color: #888; margin-top: auto; }
.lp-column__more {
  display: inline-block;
  margin-top: 44px;
  background: #0079c4;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  padding: 16px 56px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 4px 5px #004f80;
  transition: 0.1s;
}
.lp-column__more::after { content: "　›"; }
.lp-column__more:hover { box-shadow: none; transform: translateY(4px); color: #fff; }
@media (max-width: 900px) {
  .lp-column__list { grid-template-columns: 1fr; gap: 16px; }
  .lp-column__card { flex-direction: row; }
  .lp-column__card { align-items: center; padding-left: 8px; }
  .lp-column__thumb { flex: 0 0 44%; aspect-ratio: 16 / 9; border-radius: 8px; }
  .lp-column__body { padding: 12px 14px; gap: 4px; }
  .lp-column__name { font-size: 15px; }
}
@media (max-width: 578px) {
  .lp-column { padding: 48px 15px 56px; }
  .lp-column__title { font-size: 24px; }
  .lp-column__lead { font-size: 14px; margin-bottom: 28px; text-align: left; }
  .lp-column__more { font-size: 16px; padding: 14px 40px; margin-top: 32px; }
}

/* フッターリンク */
.lp-footer-links {
  list-style: none;
  margin: 0 auto 24px;
  padding: 0 15px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
}
.lp-footer-links a { color: #0079c4; text-decoration: none; font-weight: 700; font-size: 14px; }
.lp-footer-links a:hover { text-decoration: underline; }

/* 送信ボタン（送信中） */
#sendBtn[disabled] { opacity: 0.6; cursor: wait; }