:root {
    --lg-green: #2d5a3a;
    --lg-green-soft: #ecfdf5;
    --lg-orange: #f59e0b;
    --lg-ink: #1f2937;
    --lg-muted: #64748b;
    --lg-border: #e2e8f0;
    --lg-bg: #f8faf9;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Plus Jakarta Sans', 'Inter', Arial, sans-serif; color: var(--lg-ink); background: var(--lg-bg); line-height: 1.7; }
a { color: var(--lg-green); }
.lg-top { background: #fff; border-bottom: 1px solid var(--lg-border); position: sticky; top: 0; z-index: 10; }
.lg-top-inner { max-width: 1040px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.lg-brand { font-weight: 800; font-size: 1.25rem; color: var(--lg-green); text-decoration: none; letter-spacing: 0.3px; }
.lg-brand span { color: var(--lg-orange); }
.lg-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.lg-tabs a { text-decoration: none; font-size: 0.85rem; font-weight: 700; padding: 6px 12px; border-radius: 999px; color: var(--lg-muted); border: 1px solid var(--lg-border); background: #fff; }
.lg-tabs a.active, .lg-tabs a:hover { color: #fff; background: var(--lg-green); border-color: var(--lg-green); }
.lg-hero { max-width: 1040px; margin: 0 auto; padding: 36px 16px 8px; }
.lg-hero h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin: 0 0 6px; color: var(--lg-green); line-height: 1.25; }
.lg-meta { color: var(--lg-muted); font-size: 0.9rem; margin: 0; }
.lg-layout { max-width: 1040px; margin: 0 auto; padding: 20px 16px 56px; display: grid; grid-template-columns: 240px 1fr; gap: 28px; align-items: start; }
.lg-toc { position: sticky; top: 76px; background: #fff; border: 1px solid var(--lg-border); border-radius: 16px; padding: 16px; font-size: 0.85rem; }
.lg-toc strong { display: block; margin-bottom: 8px; color: var(--lg-ink); }
.lg-toc ol { margin: 0; padding-left: 18px; }
.lg-toc li { margin: 4px 0; }
.lg-toc a { text-decoration: none; color: var(--lg-muted); }
.lg-toc a:hover { color: var(--lg-green); }
.lg-content { background: #fff; border: 1px solid var(--lg-border); border-radius: 20px; padding: clamp(20px, 4vw, 40px); min-width: 0; }
.lg-content h2 { font-size: 1.2rem; color: var(--lg-green); margin: 2rem 0 0.6rem; scroll-margin-top: 90px; }
.lg-content h2:first-child { margin-top: 0; }
.lg-content h3 { font-size: 1rem; margin: 1.2rem 0 0.4rem; }
.lg-content p, .lg-content li { font-size: 0.97rem; }
.lg-content ul, .lg-content ol { padding-left: 22px; }
.lg-summary { background: var(--lg-green-soft); border: 1px solid #bbf7d0; border-radius: 14px; padding: 14px 18px; margin-bottom: 1.5rem; }
.lg-summary strong { color: var(--lg-green); }
.lg-table { width: 100%; border-collapse: collapse; margin: 0.75rem 0 1rem; font-size: 0.92rem; }
.lg-table th, .lg-table td { border: 1px solid var(--lg-border); padding: 8px 10px; text-align: left; vertical-align: top; }
.lg-table th { background: #f1f5f9; }
.lg-table-wrap { overflow-x: auto; }
.lg-note { font-size: 0.85rem; color: var(--lg-muted); }
.lg-footer { text-align: center; padding: 28px 16px 40px; font-size: 0.85rem; color: var(--lg-muted); }
.lg-footer a { margin: 0 8px; text-decoration: none; }
@media (max-width: 820px) {
    .lg-layout { grid-template-columns: 1fr; }
    .lg-toc { position: static; }
}
@media print {
    .lg-top, .lg-toc, .lg-footer { display: none; }
    .lg-layout { display: block; padding: 0; }
    .lg-content { border: none; padding: 0; }
}