:root { --bg: #121212; --fg: #ffffff; --muted: #9a9a9a; --accent: #c05a4a; --panel: #1e1e1e; --border: #ffffff26; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif; line-height: 1.7; }
main { max-width: 960px; margin: 0 auto; padding: 16px 16px 64px; }
/* 言語切り替え: html[data-lang] と一致しない lang 要素を隠す */
html[data-lang="ja"] [lang="en"], html[data-lang="en"] [lang="ja"] { display: none !important; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 40px; }
.brand { color: var(--muted); font-size: .9rem; letter-spacing: .04em; }
.lang-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.lang-switch button { background: transparent; color: var(--muted); border: 0; padding: 6px 14px; font: inherit; font-size: .85rem; cursor: pointer; }
.lang-switch button[aria-pressed="true"] { background: var(--panel); color: var(--fg); }
.hero { display: flex; gap: 32px; align-items: center; flex-wrap: wrap; }
.hero img.icon { width: 120px; height: 120px; border-radius: 28px; flex: none; }
.hero h1 { font-size: 2.2rem; margin: 0 0 .2em; letter-spacing: .01em; }
.hero p.tag { color: var(--muted); font-size: 1.1rem; margin: 0; }
.cta { margin-top: 20px; display: inline-block; padding: 12px 22px; border-radius: 999px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; }
.cta.disabled { background: var(--panel); color: var(--muted); border: 1px solid var(--border); }
section { margin-top: 56px; }
h2 { font-size: 1.3rem; margin: 0 0 16px; }
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 20px; }
.feature h3 { margin: 0 0 .4em; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); font-size: .95rem; }
.shots { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 8px; }
.shots img, .shots video { height: 480px; border-radius: 20px; border: 1px solid var(--border); flex: none; background: #000; }
footer { margin-top: 64px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }
@media (max-width: 600px) { .hero { gap: 20px; } .hero h1 { font-size: 1.8rem; } .shots img, .shots video { height: 400px; } .features { grid-template-columns: 1fr; } }