.lb-overlay{position:fixed;inset:0;background:rgba(0,0,0,.8);display:none;align-items:center;justify-content:center;z-index:60}
.lb-overlay.show{display:flex}
.lb-overlay img{max-width:92vw;max-height:88vh;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-overlay .close{position:absolute;top:18px;right:18px;background:#fff;border:none;border-radius:999px;width:42px;height:42px;cursor:pointer;font-weight:800}
.howto-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:900px){.howto-grid{grid-template-columns:1fr}}
.howto-step{border:1px solid #e5e7eb;border-radius:14px;padding:12px;background:#fff;box-shadow:0 10px 26px rgba(17,24,39,.04)}
.howto-step h3{margin:6px 0 8px}
.howto-step p{margin:6px 0 8px}
.howto-step img{width:100%;height:auto;border-radius:12px;cursor:zoom-in}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 20px}
.toc a{padding:8px 10px;border:1px solid #e5e7eb;border-radius:999px;background:#fff}