.bk-og {
  --og-ink: #17243a;
  --og-muted: #68788f;
  --og-line: #dfe7f1;
  --og-soft: #f5f8fc;
  --og-blue: #1769e0;
  --og-blue-dark: #1056bf;
  --og-good: #0f9f6e;
  --og-warn: #b86e09;
  --og-bad: #d64545;
  color: var(--og-ink);
  padding: 8px 0 56px;
}
.bk-og, .bk-og * { box-sizing: border-box; }
.bk-og button, .bk-og input, .bk-og summary { font-family: inherit; }
.bk-og-back { display: inline-flex; align-items: center; margin: 0 0 18px; padding: 9px 14px; border: 1px solid var(--og-line); border-radius: 999px; color: var(--og-ink); background: #fff; font-size: 14px; font-weight: 700; line-height: 1; text-decoration: none; }
.bk-og-back:hover { border-color: var(--og-blue); color: var(--og-blue); }
.bk-og-hero { max-width: 760px; margin: 0 auto 28px; text-align: center; }
.bk-og-hero__eyebrow { display: inline-block; margin-bottom: 12px; color: var(--og-blue); font-size: 11px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.bk-og-hero h1 { margin: 0; color: var(--og-ink); font-size: clamp(30px, 5vw, 46px); font-weight: 800; letter-spacing: -.04em; line-height: 1.12; }
.bk-og-hero p { margin: 14px auto 0; color: var(--og-muted); font-size: 16px; line-height: 1.65; }
.bk-og-form, .bk-og-panel, .bk-og-article, .bk-og-faq { border: 1px solid var(--og-line); border-radius: 20px; background: #fff; box-shadow: 0 18px 50px rgba(31, 54, 88, .08); }
.bk-og-form { padding: 22px; }
.bk-og-form label { display: block; margin-bottom: 8px; color: #34455e; font-size: 13px; font-weight: 700; }
.bk-og-form__row { display: flex; gap: 10px; }
.bk-og-form input { flex: 1 1 auto; min-width: 0; min-height: 52px; padding: 12px 14px; border: 1px solid var(--og-line); border-radius: 12px; color: var(--og-ink); background: var(--og-soft); font-size: 15px; outline: none; }
.bk-og-form input:focus { border-color: var(--og-blue); background: #fff; box-shadow: 0 0 0 4px rgba(23, 105, 224, .12); }
.bk-og-form button[type="submit"] { flex: 0 0 auto; min-width: 150px; border: 0; border-radius: 12px; color: #fff; background: var(--og-blue); cursor: pointer; font-size: 15px; font-weight: 750; }
.bk-og-form button[type="submit"]:hover:not(:disabled) { background: var(--og-blue-dark); }
.bk-og-form button[type="submit"]:disabled { cursor: wait; opacity: .7; }
.bk-og-form__hint { margin: 10px 0 0; color: var(--og-muted); font-size: 13px; line-height: 1.5; }
.bk-og-example { margin-top: 10px; padding: 0; border: 0; color: var(--og-blue); background: transparent; cursor: pointer; font-size: 13px; font-weight: 700; }
.bk-og-error { margin: 14px 0 0; padding: 14px 16px; border-radius: 14px; color: #8d2b2b; background: #fff1f1; font-size: 14px; line-height: 1.5; }
.bk-og-panel { margin-top: 16px; padding: 18px; }
.bk-og-panel h2 { margin: 0 0 6px; font-size: 20px; letter-spacing: -.02em; }
.bk-og-panel > p, .bk-og-checked { margin: 0 0 14px; color: var(--og-muted); font-size: 13px; line-height: 1.5; word-break: break-word; }
.bk-og-checked a { color: var(--og-blue); }
.bk-og-notice { margin: 0 0 14px; color: var(--og-warn); font-size: 13px; line-height: 1.5; }
.bk-og-layout { display: grid; grid-template-columns: minmax(260px, 420px) minmax(0, 1fr); gap: 18px; align-items: start; }
.bk-og-card { overflow: hidden; border: 1px solid var(--og-line); border-radius: 16px; background: #fff; }
.bk-og-card__media { display: flex; align-items: center; justify-content: center; aspect-ratio: 1.91 / 1; background: #e8eef6; color: var(--og-muted); font-size: 14px; font-weight: 700; }
.bk-og-card__media img { width: 100%; height: 100%; object-fit: cover; }
.bk-og-card__body { padding: 12px 14px 14px; }
.bk-og-card__domain { margin: 0 0 6px; color: #8b98ab; font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.bk-og-card__title { margin: 0; color: var(--og-ink); font-size: 17px; font-weight: 750; letter-spacing: -.02em; line-height: 1.35; }
.bk-og-card__title.is-empty, .bk-og-card__text.is-empty { color: var(--og-muted); font-weight: 600; }
.bk-og-card__text { margin: 8px 0 0; color: #41536c; font-size: 14px; line-height: 1.45; }
.bk-og-card__note { margin: 10px 0 0; color: var(--og-muted); font-size: 12px; line-height: 1.4; }
.bk-og-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 12px; }
.bk-og-stat { padding: 10px 12px; border-radius: 12px; background: var(--og-soft); }
.bk-og-stat b { display: block; font-size: 22px; letter-spacing: -.03em; line-height: 1; }
.bk-og-stat span { display: block; margin-top: 4px; color: var(--og-muted); font-size: 12px; }
.bk-og-stat--good b { color: var(--og-good); }
.bk-og-stat--warn b { color: var(--og-warn); }
.bk-og-stat--bad b { color: var(--og-bad); }
.bk-og-field { margin-top: 8px; padding: 12px; border-radius: 14px; background: var(--og-soft); }
.bk-og-field__top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.bk-og-field__top strong { font-size: 14px; }
.bk-og-badge { flex: 0 0 auto; padding: 4px 8px; border-radius: 999px; font-size: 12px; font-weight: 750; }
.bk-og-badge--good { color: var(--og-good); background: #e8f8f1; }
.bk-og-badge--warn { color: var(--og-warn); background: #fff4e4; }
.bk-og-badge--bad { color: var(--og-bad); background: #ffecec; }
.bk-og-value { margin-top: 8px; padding: 10px 12px; border-radius: 10px; background: #fff; font-size: 14px; line-height: 1.45; overflow-wrap: anywhere; }
.bk-og-value.is-empty { color: var(--og-muted); }
.bk-og-advice { margin: 8px 0 0; color: #41536c; font-size: 14px; line-height: 1.5; }
.bk-og-extra { margin: 8px 0 0; padding-left: 18px; color: #41536c; font-size: 14px; line-height: 1.45; }
.bk-og-extra li { margin: 4px 0; overflow-wrap: anywhere; }
.bk-og-article, .bk-og-faq { margin-top: 22px; padding: 22px 24px 8px; }
.bk-og-article h2, .bk-og-faq h2 { margin: 8px 0 10px; font-size: 24px; letter-spacing: -.03em; }
.bk-og-article p, .bk-og-faq p { margin: 0 0 16px; color: #41536c; font-size: 15px; line-height: 1.65; }
.bk-og-article code { padding: 1px 5px; border-radius: 6px; background: var(--og-soft); font-size: .92em; }
.bk-og-faq details { border-top: 1px solid var(--og-line); }
.bk-og-faq details:last-child { border-bottom: 1px solid var(--og-line); margin-bottom: 14px; }
.bk-og-faq summary { padding: 14px 0; cursor: pointer; font-size: 16px; font-weight: 750; }
.bk-og-faq details p { margin-top: 0; }
@media (max-width: 860px) {
  .bk-og-form__row, .bk-og-layout, .bk-og-field__top { display: block; }
  .bk-og-form button[type="submit"] { width: 100%; min-height: 48px; margin-top: 10px; }
  .bk-og-card { max-width: 520px; }
  .bk-og-stats { margin-top: 14px; }
  .bk-og-badge { display: inline-block; margin-top: 8px; }
}