:root{
  --bg:#06070d; --bg2:#0a0c16; --panel:#10131f; --panel2:#161b2b;
  --ink:#eef2fb; --muted:#8b93a9; --faint:#565d72;
  --gold:#4c8dff; --gold-lt:#8fbcff;
  --line:rgba(255,255,255,.07); --line2:rgba(255,255,255,.15);
  --disp:"Cormorant Garamond",serif;
  --serif:"Noto Serif JP",serif;
  --sans:"Noto Sans JP",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-weight:300;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
.eyebrow{font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:.42em;text-transform:uppercase;color:var(--gold);margin-bottom:22px}
h1.sec,h2.sec{font-family:var(--serif);font-weight:600;font-size:clamp(28px,4vw,46px);line-height:1.25;letter-spacing:.01em}
p.lead{color:var(--muted);font-size:16px;max-width:640px;margin-top:20px;font-weight:300}

header{border-bottom:1px solid var(--line);background:rgba(6,7,13,.9);backdrop-filter:blur(14px)}
nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;flex:none}
.brand img{flex:none;height:32px;width:auto;display:block}
.navlinks{display:flex;gap:34px;font-size:13px;letter-spacing:.04em;color:var(--muted);font-weight:400}
.navlinks a{transition:.25s}
.navlinks a:hover{color:var(--ink)}
.navcta{font-size:13px;border:1px solid var(--line2);padding:9px 20px;border-radius:40px;color:var(--ink);transition:.3s}
.navcta:hover{background:var(--gold);border-color:var(--gold);color:#04102b}
.navcta.is-disabled{opacity:.4;color:var(--faint);cursor:not-allowed;pointer-events:none}
.navcta.is-disabled:hover{background:none;border-color:var(--line2);color:var(--faint)}
.navburger{display:none;flex:none;width:38px;height:38px;border:1px solid var(--line2);border-radius:10px;background:transparent;position:relative;cursor:pointer}
.navburger span{position:absolute;left:9px;right:9px;height:1.5px;background:var(--ink);transition:.3s}
.navburger span:nth-child(1){top:13px}
.navburger span:nth-child(2){top:18px}
.navburger span:nth-child(3){top:23px}
.navburger[aria-expanded="true"] span:nth-child(1){top:18px;transform:rotate(45deg)}
.navburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.navburger[aria-expanded="true"] span:nth-child(3){top:18px;transform:rotate(-45deg)}
.mobilenav{display:none;flex-direction:column;padding:8px 32px 20px;gap:2px;border-top:1px solid var(--line);background:rgba(6,7,13,.97);backdrop-filter:blur(14px)}
.mobilenav a{padding:14px 2px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line)}
.mobilenav a:hover{color:var(--ink)}
.mobilenav .navcta{display:block;text-align:center;margin-top:12px;padding:13px 20px;border:1px solid var(--line2);border-radius:40px}
@media(max-width:820px){
  .navlinks{display:none}
  nav>.navcta{display:none}
  .navburger{display:flex}
  .mobilenav.open{display:flex}
  .brand img{height:24px}
}

main{padding:120px 0 140px}

/* news list */
.news-list{margin-top:56px;display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:140px 110px 1fr;gap:24px;align-items:center;padding:22px 8px;border-bottom:1px solid var(--line);transition:.3s}
.news-row:hover{background:var(--panel);padding-left:16px}
.news-row .news-date{font-family:var(--disp);color:var(--faint);font-size:15px;letter-spacing:.02em}
.news-row .news-title{font-family:var(--serif);font-size:16px;color:var(--ink);font-weight:500}
.news-row .news-cat{font-size:11.5px;color:var(--gold-lt);border:1px solid rgba(143,188,255,.35);padding:5px 14px;border-radius:20px;letter-spacing:.04em;white-space:nowrap;justify-self:start}
@media(max-width:700px){.news-row{grid-template-columns:1fr;gap:6px;padding:18px 8px}}

/* article */
.article-head{border-bottom:1px solid var(--line);padding-bottom:36px;margin-bottom:40px}
.article-meta{display:flex;gap:16px;align-items:center;margin-top:18px}
.article-date{font-family:var(--disp);color:var(--faint);font-size:15px}
.article-cat{font-size:11.5px;color:var(--gold-lt);border:1px solid rgba(143,188,255,.35);padding:5px 14px;border-radius:20px;letter-spacing:.04em}
.article-body{color:var(--ink);font-size:15.5px;max-width:720px}
.article-body p{margin-bottom:1.4em}
.article-body h2{font-family:var(--serif);font-weight:600;font-size:20px;margin:2.2em 0 .7em;color:var(--ink)}
.article-body h3{font-family:var(--serif);font-weight:600;font-size:15.5px;margin:2.2em 0 .6em;color:var(--gold-lt)}
.article-body a{color:var(--gold-lt);border-bottom:1px solid rgba(143,188,255,.4)}
.article-body .small{font-size:13.5px;color:var(--muted)}

.btn{padding:13px 28px;border-radius:44px;font-size:13.5px;font-weight:500;letter-spacing:.03em;transition:.3s;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.btn-g{border:1px solid var(--line2);color:var(--ink)}
.btn-g:hover{border-color:var(--ink)}
.back-row{margin-top:52px}

footer{border-top:1px solid var(--line);padding:40px 0;color:var(--faint);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}