html {
  background-color: #f6f4a5;
  scroll-behavior: smooth;
}

a {
  user-select: none;
}

body {
  margin: 0;
  padding: 0;
  color: #333;
  line-height: 1.85;
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", "メイリオ", sans-serif;
}

.page-inner {
  max-width: 660px;
  margin: 0 auto;
  background: #ffffe9;
  padding: 80px 6% 48px;
}

/* ========== 固定ナビ ========== */
#article-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #eee183;
  border-bottom: 1px solid #ddd;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px max(16px, calc(50% - 330px + 16px));
  z-index: 200;
  box-sizing: border-box;
}
#article-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: #666;
  text-decoration: none;
  font-size: 0.62rem;
  padding: 0;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: rgba(255,255,255,0.75);
  box-shadow: 0 1px 4px rgba(0,0,0,0.13);
  border: 1px solid rgba(220,220,220,0.7);
  transition: color 0.2s, box-shadow 0.2s;
}
#article-nav a:hover {
  color: #4a7c2d;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
#article-nav .nav-icon { font-size: 1.35rem; line-height: 1; }
#article-nav .fa-home  { font-size: 1.25rem; }

/* ========== 記事内画像 ========== */
.article-img {
  display: block;
  width: 80%;
  max-width: 640px;
  height: auto;
  margin: 0 auto 36px;
  border-radius: 14px;
  box-shadow: 0 3px 14px rgba(0,0,0,0.12);
}

/* PC: 横並び2枚 / スマホ: 縦積み。子の .article-img は幅・マージンを上書き */
.img-pair {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.img-pair .article-img {
  width: 48%;
  margin: 0;
}
@media screen and (max-width: 640px) {
  .img-pair {
    display: block;
  }
  .img-pair .article-img {
    width: 100%;
    margin: 0 auto 36px;
  }
}

/* ========== タイトル ========== */
h1 {
  font-size: 1.95rem;
  font-weight: 800;
  color: #3a6522;
  border-bottom: 3px solid #d8edc8;
  padding-bottom: 10px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}
h1::before { content: "🐾"; font-size: 1.4rem; }

/* ========== 本文 ========== */
p {
  font-size: 1.5rem;
  /* margin-bottom: 1.4em; */
}
li {
  font-size: 1.3rem;
}
/* p:last-of-type { margin-bottom: 0; } */

/* ========== ユーティリティ ========== */
.red    { color: #c0392b; }
.orange { color: #e07800; }
.green  { color: #5a9a00; }
.blue   { color: #2e7db8; }
span { display: inline-block; }

/* ========== フッター ========== */
footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px dashed #ccc;
  text-align: center;
}
.article-dates {
  margin-top: 16px;
  font-size: 0.82rem;
  color: #999;
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* ========== スマホ ========== */
@media screen and (max-width: 640px) {
  body {
    margin: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .page-inner { padding: 80px 3% 48px; }
  h1 { font-size: 1.55rem; }
  p  { font-size: 1.2rem; }
  li { font-size: 1.2rem; }
  .article-img { width: 100%; }
}