.lgl-hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(2rem, 4vw, 3.4rem) clamp(1rem, 2vw, 1.6rem);
}

.lgl-hero__glow {
    position: absolute;
    top: -30%;
    right: -8%;
    width: 36rem;
    height: 36rem;
    background: radial-gradient(circle, var(--sp-glow-c3), transparent 68%);
    pointer-events: none;
}

.lgl-wrap {
    position: relative;
    z-index: 1;
    width: min(100% - 2.6rem, 54rem);
    margin-inline: auto;
}

.lgl-hero__h1 { margin-top: 0.8rem; }

.lgl-hero__h1 em {
    font-style: italic;
    color: var(--sp-c4-text);
}

.lgl-meta {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.2rem;
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-sb);
    font-size: var(--sp-fz-tc);
    color: var(--sp-ink-muted);
}

.lgl-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
}

.lgl-meta-ic {
    width: 1em;
    height: 1em;
    filter: brightness(0) saturate(100%) invert(46%) sepia(46%) saturate(420%) hue-rotate(124deg) brightness(90%);
}

.lgl-lead {
    margin-top: 1rem;
}

.lgl-main {
    padding-block: clamp(1.4rem, 3vw, 2.4rem) clamp(3rem, 6vw, 5rem);
}

.lgl-toc {
    margin: 0 0 2.6rem;
    padding: 1.2rem 1.4rem;
    background: var(--sp-surface);
    border: 2px solid var(--sp-edge-soft);
    border-radius: var(--sp-radius-md);
}

.lgl-toc__h {
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-bd);
    font-size: var(--sp-fz-tc);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sp-c4-text);
}

.lgl-toc__list {
    list-style: none;
    margin: 0.8rem 0 0;
    padding: 0;
    columns: 2;
    column-gap: 1.6rem;
}

.lgl-toc__list li {
    margin-bottom: 0.4rem;
    break-inside: avoid;
}

.lgl-toc__list a {
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-sb);
    font-size: var(--sp-fz-sm);
    color: var(--sp-c4-text);
    transition: color 0.25s ease;
}

.lgl-toc__list a:hover { color: var(--sp-ink); }

.lgl-body { counter-reset: lgl; }

.lgl-sec {
    margin-top: 2.4rem;
    scroll-margin-top: calc(var(--sp-header-h) + 20px);
}

.lgl-sec:first-child { margin-top: 0; }

.lgl-sec__h {
    display: flex;
    align-items: baseline;
    gap: 0.7rem;
    font-family: var(--sp-ff-display);
    font-weight: var(--sp-fw-bd);
    font-size: var(--sp-fz-h3);
    letter-spacing: -0.01em;
    line-height: 1.15;
    color: var(--sp-ink);
    margin: 0;
}

.lgl-sec__h::before {
    counter-increment: lgl;
    content: counter(lgl, decimal-leading-zero);
    flex: none;
    font-size: 0.92rem;
    font-weight: 800;
    color: var(--sp-c4-text);
}

.lgl-sec p {
    margin: 0.8rem 0 0;
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-md);
    font-size: 1.04rem;
    line-height: 1.72;
    color: var(--sp-ink-soft);
}

.lgl-sec h3 {
    margin: 1.3rem 0 0;
    font-family: var(--sp-ff-display);
    font-weight: var(--sp-fw-sb);
    font-size: var(--sp-fz-h5);
    color: var(--sp-ink);
}

.lgl-sec ul {
    margin: 0.8rem 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.5rem;
}

.lgl-sec li {
    position: relative;
    padding-left: 1.4em;
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-md);
    font-size: 1.02rem;
    line-height: 1.6;
    color: var(--sp-ink-soft);
}

.lgl-sec li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 0.7em;
    height: 0.7em;
    background: var(--sp-maze-turn) center / contain no-repeat;
}

.lgl-sec a {
    color: var(--sp-c4-text);
    font-weight: var(--sp-fw-sb);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.lgl-note {
    margin-top: 2.8rem;
    padding-top: 1.4rem;
    box-shadow: inset 0 2px 0 var(--sp-edge-soft);
    font-family: var(--sp-ff-body);
    font-weight: var(--sp-fw-sb);
    font-size: var(--sp-fz-sm);
    line-height: 1.6;
    color: var(--sp-ink-muted);
}

.lgl-note a {
    color: var(--sp-c4-text);
    text-decoration: underline;
    text-underline-offset: 3px;
}

@media (max-width: 540px) {
    .lgl-toc__list { columns: 1; }
}