:root { --primary: #80deea; --dark: #00acc1; --bg: #e0f7fa; --text: #004d57; --muted: #4a7a82; --card: #fff; }
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: Meiryo, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
.block { scroll-margin-top: 60px; }
a { color: var(--dark); }
img { max-width: 100%; height: auto; display: block; }
.sport-header { background: var(--card); padding: 1rem 1.25rem; display: flex; align-items: center; justify-content: space-between; }
.sport-header h1 { font-size: 1.25rem; color: var(--dark); }
.zigzag { max-width: 900px; margin: 0 auto; padding: 1rem; }
.zigzag .row { display: flex; align-items: center; gap: 1.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
.zigzag .row:nth-child(even) { flex-direction: row-reverse; }
.zigzag .row img { width: 45%; min-width: 260px; height: 220px; object-fit: cover; border-radius: 12px; cursor: pointer; }
.zigzag .row .text { flex: 1; min-width: 200px; }
.zigzag .price { color: var(--dark); font-weight: 700; font-size: 1.2rem; }
.grid-sport { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; padding: 1rem; max-width: 900px; margin: 0 auto; }
.grid-sport article { background: var(--card); border-radius: 10px; overflow: hidden; cursor: pointer; }
.grid-sport img { height: 160px; width: 100%; object-fit: cover; }
.grid-sport .pad { padding: 0.75rem; }
.bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); display: flex; justify-content: space-around; padding: 0.5rem 0; border-top: 2px solid var(--primary); z-index: 100; }
.bottom-nav button { flex: 1; border: none; background: none; font: inherit; font-size: 0.75rem; color: var(--muted); cursor: pointer; padding: 0.5rem; }
.bottom-nav button.active { color: var(--dark); font-weight: 700; }
.bottom-nav button span { display: block; font-size: 1.2rem; margin-bottom: 0.15rem; }
.prose { padding: 1.5rem; max-width: 700px; margin: 0 auto; }
.prose h1 { color: var(--dark); margin-bottom: 0.75rem; }
.prose p { color: var(--muted); margin-bottom: 0.65rem; }
.detail-full { padding: 1.25rem; max-width: 600px; margin: 0 auto; }
.detail-full img { width: 100%; height: 320px; object-fit: cover; border-radius: 12px; }