.problem-summary[data-astro-cid-qq7dmpn3]{padding-top:clamp(18px,3vw,28px);padding-bottom:0}.summary-grid[data-astro-cid-qq7dmpn3]{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;overflow:hidden;border:1px solid var(--line);border-radius:6px;background:var(--line);box-shadow:0 18px 44px -34px #14253f47}.summary-grid[data-astro-cid-qq7dmpn3]>[data-astro-cid-qq7dmpn3]{min-height:118px;padding:18px;background:var(--paper)}.summary-grid[data-astro-cid-qq7dmpn3] div[data-astro-cid-qq7dmpn3]{display:grid;align-content:center;gap:3px}.summary-label[data-astro-cid-qq7dmpn3]{color:var(--gold);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.summary-grid[data-astro-cid-qq7dmpn3] strong[data-astro-cid-qq7dmpn3]{font-family:var(--serif);font-size:34px;line-height:1;color:var(--ink)}.summary-grid[data-astro-cid-qq7dmpn3] span[data-astro-cid-qq7dmpn3]:last-child{color:var(--muted);font-size:13px}.summary-grid[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3]{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(135deg,var(--ink),#21375b);color:#fff;text-decoration:none;font-weight:800}.summary-grid[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3] .icon{color:var(--gold)}.summary-grid[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3]:hover{background:linear-gradient(135deg,#0f1c30,var(--ink))}.problem-page[data-astro-cid-qq7dmpn3]{padding-top:0}.problem-layout[data-astro-cid-qq7dmpn3]{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(28px,5vw,56px);align-items:start}.problem-main[data-astro-cid-qq7dmpn3]{display:grid;gap:28px}.problem-section[data-astro-cid-qq7dmpn3]{padding:clamp(22px,3vw,30px);background:var(--paper);border:1px solid var(--line);border-radius:6px;box-shadow:0 16px 38px -34px #14253f38}.problem-section[data-astro-cid-qq7dmpn3].muted{padding:24px;background:var(--paper-2);border:1px solid var(--line);border-radius:6px}.problem-head[data-astro-cid-qq7dmpn3]{display:flex;align-items:baseline;gap:12px;margin-bottom:18px}.problem-head[data-astro-cid-qq7dmpn3] span[data-astro-cid-qq7dmpn3]{color:var(--accent-deep);font-size:13px;font-weight:800;letter-spacing:.08em}.problem-head[data-astro-cid-qq7dmpn3] h2[data-astro-cid-qq7dmpn3]{font-family:var(--serif);font-size:clamp(24px,3vw,34px);font-weight:500;margin:0}.problem-list[data-astro-cid-qq7dmpn3]{display:grid;gap:12px;margin:0;padding:0;list-style:none}.problem-list[data-astro-cid-qq7dmpn3] li[data-astro-cid-qq7dmpn3]{display:grid;grid-template-columns:22px 1fr;gap:10px;color:var(--ink-2);line-height:1.6}.problem-list[data-astro-cid-qq7dmpn3] .icon-check-circle{color:var(--accent-deep);margin-top:3px}.problem-list[data-astro-cid-qq7dmpn3] .icon-file-text{color:var(--gold);margin-top:3px}.problem-list[data-astro-cid-qq7dmpn3] .icon-x{color:#8b2f39;margin-top:3px}.problem-list[data-astro-cid-qq7dmpn3].compact{gap:10px}.problem-steps[data-astro-cid-qq7dmpn3]{display:grid;gap:12px;margin:0;padding:0;list-style:none}.problem-steps[data-astro-cid-qq7dmpn3] li[data-astro-cid-qq7dmpn3]{display:grid;grid-template-columns:46px 1fr;gap:12px;align-items:start;padding:14px 0;border-top:1px solid var(--line-soft)}.problem-steps[data-astro-cid-qq7dmpn3] li[data-astro-cid-qq7dmpn3]:first-child{border-top:0}.problem-steps[data-astro-cid-qq7dmpn3] b[data-astro-cid-qq7dmpn3]{color:var(--gold);font-size:13px;letter-spacing:.08em}.problem-steps[data-astro-cid-qq7dmpn3] span[data-astro-cid-qq7dmpn3]{color:var(--ink-2);line-height:1.6}.method-grid[data-astro-cid-qq7dmpn3]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.method-item[data-astro-cid-qq7dmpn3]{padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:5px}.method-item[data-astro-cid-qq7dmpn3] span[data-astro-cid-qq7dmpn3]{display:block;color:var(--gold);font-size:12px;font-weight:800;letter-spacing:.08em;margin-bottom:10px}.method-item[data-astro-cid-qq7dmpn3] p[data-astro-cid-qq7dmpn3]{color:var(--ink-2);line-height:1.55;margin:0}.problem-side[data-astro-cid-qq7dmpn3]{position:sticky;top:96px;display:grid;gap:16px}.side-box[data-astro-cid-qq7dmpn3]{padding:22px;background:radial-gradient(420px 180px at 100% 0%,color-mix(in oklch,var(--gold) 12%,transparent),transparent 64%),var(--paper);border:1px solid var(--line);border-radius:6px}.side-box[data-astro-cid-qq7dmpn3] h2[data-astro-cid-qq7dmpn3]{font-size:18px;margin:0 0 10px}.side-box[data-astro-cid-qq7dmpn3] p[data-astro-cid-qq7dmpn3]{color:var(--ink-soft);line-height:1.6;margin:0 0 18px}.side-box[data-astro-cid-qq7dmpn3] nav[data-astro-cid-qq7dmpn3]{display:grid}.side-box[data-astro-cid-qq7dmpn3] nav[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3]{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line-soft);color:var(--ink);text-decoration:none}.side-box[data-astro-cid-qq7dmpn3] nav[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3]:first-child{border-top:0}.side-box[data-astro-cid-qq7dmpn3] nav[data-astro-cid-qq7dmpn3] a[data-astro-cid-qq7dmpn3]:hover{color:var(--accent-deep)}.side-mini[data-astro-cid-qq7dmpn3]{display:inline-flex;margin-top:12px;color:var(--gold);font-weight:800;text-decoration:none}.side-mini[data-astro-cid-qq7dmpn3]:hover{text-decoration:underline}@media(max-width:900px){.summary-grid[data-astro-cid-qq7dmpn3]{grid-template-columns:repeat(2,minmax(0,1fr))}.problem-layout[data-astro-cid-qq7dmpn3]{grid-template-columns:1fr}.problem-side[data-astro-cid-qq7dmpn3]{position:static}}@media(max-width:620px){.summary-grid[data-astro-cid-qq7dmpn3],.method-grid[data-astro-cid-qq7dmpn3]{grid-template-columns:1fr}}