.ld.lg { padding-bottom: 0; }
.lg-head { position: relative; overflow: hidden; padding: 44px 0 36px; background: radial-gradient(900px 360px at 85% -10%, rgba(99, 229, 208, .14), transparent 60%), linear-gradient(180deg, var(--bg-2), var(--bg)); border-bottom: 1px solid var(--line-2); }
.lg-head h1 { margin-top: 16px; font-size: clamp(1.9rem, 6vw, 2.8rem); font-weight: 800; color: #fff; }
.lg-head .ld-lead { margin-top: 14px; max-width: 680px; font-size: 1.05rem; color: var(--text-2); }
.lg-date { margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--faint); }

.lg-sum { display: grid; gap: 14px; margin-top: 28px; }
.lg-sum > div { padding: 20px 20px 18px; border-radius: 18px; background: rgba(14, 31, 49, .78); border: 1px solid var(--line-2); }
.lg-sum .ld-ic { width: 46px; height: 46px; border-radius: 14px; }
.lg-sum h3 { margin-top: 14px; font-size: 1.02rem; font-weight: 800; }
.lg-sum p { margin-top: 6px; font-size: 14px; color: var(--muted); }

.lg-body { display: grid; gap: 32px; padding: 40px 16px 64px; }
.lg-toc { display: none; }
.lg-toc b { display: block; margin-bottom: 12px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--text); }
.lg-toc a { display: block; padding: 7px 12px; border-left: 2px solid var(--line-2); font-size: 14px; color: var(--muted); }
.lg-toc a:hover { color: var(--primary); border-left-color: var(--primary); }

.lg-doc { min-width: 0; }
.lg-doc section { scroll-margin-top: 84px; }
.lg-doc section + section { margin-top: 36px; padding-top: 36px; border-top: 1px solid var(--line-2); }
.lg-doc h2 { display: flex; align-items: baseline; gap: 12px; font-size: clamp(1.25rem, 4vw, 1.55rem); font-weight: 800; }
.lg-doc h2 em { flex: none; font-style: normal; font-size: 13px; font-weight: 800; color: var(--primary); letter-spacing: .06em; }
.lg-doc h3 { margin-top: 22px; font-size: 1.02rem; font-weight: 800; color: var(--text); }
.lg-doc p, .lg-doc li { margin-top: 12px; font-size: 15.5px; line-height: 1.7; color: var(--text-2); }
.lg-doc ul { padding-left: 0; list-style: none; }
.lg-doc li { position: relative; padding-left: 22px; }
.lg-doc li::before { content: ""; position: absolute; left: 4px; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.lg-doc b { color: var(--text); }
.lg-doc a:not(.ld-btn) { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(99, 229, 208, .4); }

.lg-box { margin-top: 18px; padding: 18px 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line-2); }
.lg-box p:first-child, .lg-box li:first-child { margin-top: 0; }
.lg-box-brand { background: linear-gradient(180deg, rgba(99, 229, 208, .09), var(--surface)); border-color: var(--line); }

.lg-ret { margin-top: 18px; border-radius: 16px; overflow: hidden; border: 1px solid var(--line-2); background: var(--surface); }
.lg-ret div { display: grid; gap: 4px; padding: 14px 18px; }
.lg-ret div + div { border-top: 1px solid var(--line-2); }
.lg-ret span { font-size: 15px; font-weight: 650; color: var(--text); }
.lg-ret strong { font-size: 14px; font-weight: 700; color: var(--primary); }

.lg-steps { display: grid; gap: 14px; margin-top: 18px; counter-reset: lg; list-style: none; padding-left: 0; }
.lg-steps li { counter-increment: lg; margin: 0; padding: 18px 18px 18px 64px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line-2); }
.lg-steps li::before { content: counter(lg); left: 18px; top: 16px; width: 32px; height: 32px; display: grid; place-items: center; font-size: 14px; font-weight: 800; color: var(--on-primary); background: linear-gradient(135deg, var(--primary), var(--primary-2)); }

.lg-flow { max-width: 560px; margin-top: 22px; padding: 24px 22px; border-radius: 22px; background: rgba(14, 31, 49, .85); border: 1px solid var(--line); box-shadow: 0 24px 50px rgba(0, 0, 0, .28); }
.lg-flow h3 { margin: 0; font-size: 1.1rem; }
.lg-flow > p { margin-top: 6px; font-size: 14.5px; color: var(--muted); }
.lg-flow form, .lg-flow .lg-pane { display: grid; gap: 14px; margin-top: 18px; }
.lg-flow .input { min-height: 54px; font-size: 16px; }
.lg-code { letter-spacing: .5em; text-align: center; font-size: 1.4rem !important; font-weight: 800; font-family: var(--mono); }
.lg-flow .ld-btn { width: 100%; }
.lg-danger { background: var(--danger-2); color: #fff; box-shadow: 0 10px 28px rgba(239, 68, 68, .25); }
.lg-danger:hover { background: #dc2626; }
.lg-danger:disabled { opacity: .5; transform: none; cursor: default; }
.lg-msg { min-height: 1.4em; font-size: 14px; text-align: center; color: var(--muted); }
.lg-msg.is-err { color: var(--danger); }
.lg-link { justify-self: center; padding: 6px; border: 0; background: none; font: inherit; font-size: 14px; font-weight: 700; color: var(--primary); cursor: pointer; }
.lg-link:disabled { opacity: .5; cursor: default; }
.lg-choose { display: grid; gap: 10px; }
.lg-choose button { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 58px; padding: 10px 16px; border-radius: 14px; border: 1px solid var(--line-2); background: var(--surface); color: var(--text); font: inherit; font-weight: 700; text-align: start; cursor: pointer; }
.lg-choose button:hover { border-color: var(--primary); }
.lg-choose small { flex: none; font-size: 12.5px; font-weight: 700; color: var(--muted); }
.lg-est { padding: 14px 16px; border-radius: 14px; background: var(--danger-bg); border: 1px solid rgba(248, 113, 113, .35); }
.lg-est b { display: block; font-size: 1.05rem; color: #fff; }
.lg-est span { font-size: 13.5px; color: var(--muted); }
.lg-done { text-align: center; }
.lg-done .ld-ic { margin-inline: auto; color: var(--ok); background: var(--ok-bg); border-color: rgba(74, 222, 128, .35); }
.lg-done h3 { margin-top: 14px; }
[hidden] { display: none !important; }

.lg-old { margin-top: 22px; max-width: 560px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line-2); }
.lg-old summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; padding: 0 18px; font-weight: 700; cursor: pointer; list-style: none; }
.lg-old summary::-webkit-details-marker { display: none; }
.lg-old summary::after { content: "+"; font-size: 20px; color: var(--primary); }
.lg-old[open] summary::after { content: "–"; }
.lg-old > div { padding: 0 18px 18px; }
.lg-old .lg-flow { margin-top: 12px; padding: 18px; box-shadow: none; border-color: var(--line-2); }

@media (min-width: 640px) {
  .lg-sum { grid-template-columns: repeat(3, 1fr); }
  .lg-ret div { grid-template-columns: 1fr auto; align-items: center; gap: 16px; }
  .lg-ret strong { text-align: end; }
}
@media (min-width: 960px) {
  .lg-head { padding: 64px 0 48px; }
  .lg-body { grid-template-columns: 220px minmax(0, 1fr); gap: 56px; padding: 56px 16px 88px; }
  .lg-toc { display: block; position: sticky; top: 88px; align-self: start; }
}