:root{
  --tb-bg:#ffffff;
  --tb-paper:#f6f8fb;
  --tb-ink:#10131a;
  --tb-muted:#6f7785;
  --tb-line:#e7eaf0;
  --tb-blue:#1677ff;
  --tb-blue-2:#5fa4ff;
  --tb-dark:#060a12;
  --tb-radius:14px;
  --tb-radius-lg:22px;
  --tb-container:min(1320px,calc(100vw - 64px));
  --tb-shadow:0 16px 40px rgba(20,33,61,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--tb-bg);
  color:var(--tb-ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body.tb-menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img,video{max-width:100%;height:auto}
.tb-container{width:var(--tb-container);margin-inline:auto}
.tb-page-narrow{max-width:920px}
.screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.tb-main{min-height:60vh}
.tb-eyebrow{margin:0 0 16px;font-size:12px;letter-spacing:.2em;font-weight:800;color:#7f8ba0}
.tb-tags{display:flex;flex-wrap:wrap;gap:6px}
.tb-tags span{padding:4px 9px;border-radius:999px;background:#f2f4f7;color:#667085;font-size:11px;line-height:1.2}