/* 公開前用。元の紹介ページとは独立したスタイル。 */
:root{--bg:#f6f6f5;--surface:#fff;--ink:#252629;--muted:#686b70;--line:#dedfe1}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Kaku Gothic ProN",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:5px}
a:focus-visible{outline:2px solid #597aa4;outline-offset:6px}
header,main,footer{width:100%;max-width:1300px;margin-inline:auto}
header{padding:30px 6% 20px}
.brand{font-size:46px;font-weight:650;letter-spacing:-.06em}
.coming-soon{flex:1;padding:65px 6% 80px}
.announcement{padding:35px 0 65px}
h1{font-size:clamp(27px,3.5vw,40px);line-height:1.6;letter-spacing:-.04em;font-weight:550;margin:0 0 28px}
p{font-size:16px;line-height:2.1;color:var(--muted);margin:0 0 20px}
.contact{border-top:1px solid var(--line);padding-top:35px;max-width:680px}
h2{font-size:19px;font-weight:550;margin:0 0 18px}
.draft{padding:15px 18px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font-size:14px}
footer{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding:25px 6% 30px;font-size:14px;color:var(--muted)}
.article{flex:1;max-width:850px;padding:55px 6% 80px}
.article h1{font-size:32px}
.article h2{margin-top:34px}
.article .back{display:inline-block;margin-top:25px;border-bottom:1px solid var(--line);padding-bottom:7px;font-size:14px}
@media(max-width:650px){header{padding-top:24px}.coming-soon{padding-top:30px;padding-bottom:50px}.announcement{padding-top:24px;padding-bottom:35px}p{font-size:15px}.announcement br{display:none}footer{flex-direction:column;gap:18px;font-size:13px}.article{padding-top:30px}.article h1{font-size:27px}}

.email-link{text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}