:root { --bg: #0b0f1a; --panel: #121a2b; --text: #e8eefc; --muted: #9fb0d0; --accent: #5aa9ff; --line: #26324a; }
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: "Segoe UI", "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif; line-height: 1.8; font-size: 16px; }
a { color: var(--accent); }
header.site { border-bottom: 1px solid var(--line); background: #0d1322; }
header.site .inner { max-width: 960px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
header.site img { height: 36px; width: auto; }
header.site nav a { margin-right: 16px; color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--text); }
main { max-width: 960px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.8rem; margin: 0.4em 0; }
h2 { font-size: 1.25rem; margin: 2em 0 0.6em; border-left: 4px solid var(--accent); padding-left: 10px; }
h3 { font-size: 1.05rem; margin: 1.4em 0 0.4em; }
p, li { color: var(--text); }
.lead { font-size: 1.1rem; color: var(--muted); }
.hero { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; padding: 20px 0; }
.hero img { width: min(420px, 100%); height: auto; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 14px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.btn { display: inline-block; background: var(--accent); color: #06101f; font-weight: 700; padding: 10px 18px; border-radius: 8px; text-decoration: none; }
.note { color: var(--muted); font-size: 0.95rem; }
table { border-collapse: collapse; width: 100%; margin: 10px 0; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #16203a; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0; }
.table-scroll table { margin: 0; min-width: 720px; }
.table-scroll.narrow table { min-width: 560px; }
.table-scroll:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.scroll-hint { display: none; color: var(--muted); font-size: 0.85rem; margin: 6px 0 0; }
@media (max-width: 752px) { .scroll-hint { display: block; } .scroll-hint.narrow { display: none; } }
@media (max-width: 630px) { .scroll-hint.narrow { display: block; } }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer.site .inner { max-width: 960px; margin: 0 auto; padding: 18px 16px; }
code { background: #16203a; padding: 1px 5px; border-radius: 4px; }
@media (max-width: 600px) { body { font-size: 15px; } h1 { font-size: 1.5rem; } }