.guide-page[data-astro-cid-kifpy4aa]{max-width:var(--content-width);margin:0 auto;padding-bottom:5rem}.breadcrumb[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.5rem;font-size:.875rem;display:flex}.breadcrumb[data-astro-cid-kifpy4aa] a[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);text-underline-offset:3px;text-decoration:underline}.breadcrumb[data-astro-cid-kifpy4aa] a[data-astro-cid-kifpy4aa]:hover{color:var(--color-accent)}.breadcrumb[data-astro-cid-kifpy4aa] .sep[data-astro-cid-kifpy4aa]{color:var(--color-ink-subtle,#a39e93)}.breadcrumb[data-astro-cid-kifpy4aa] .current[data-astro-cid-kifpy4aa]{color:var(--color-ink);font-weight:500}.page-head[data-astro-cid-kifpy4aa]{margin-bottom:3rem}.page-head[data-astro-cid-kifpy4aa] h1[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin:.5rem 0 1rem;font-size:clamp(2.1rem,4.5vw,3.25rem);font-weight:700;line-height:1.15}.page-head[data-astro-cid-kifpy4aa] .lead[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);max-width:820px;margin-bottom:2rem;font-size:clamp(1.1rem,2vw,1.25rem);line-height:1.6}.quick-nav-pills[data-astro-cid-kifpy4aa]{flex-wrap:wrap;gap:.65rem;margin-top:1.5rem;display:flex}.quick-nav-btn[data-astro-cid-kifpy4aa]{color:var(--color-ink);background-color:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:9999px;align-items:center;gap:.4rem;padding:.55rem .95rem;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .15s;display:inline-flex}.quick-nav-btn[data-astro-cid-kifpy4aa]:hover{border-color:var(--color-accent,#c95d3b);color:var(--color-accent,#c95d3b);background-color:var(--color-accent-subtle,#c95d3b0d);transform:translateY(-1px)}.calc-card[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:16px;margin-bottom:4rem;padding:2.25rem;box-shadow:0 4px 20px #0000000a}.calc-header[data-astro-cid-kifpy4aa]{margin-bottom:1.75rem}.calc-title-wrap[data-astro-cid-kifpy4aa]{align-items:flex-start;gap:1rem;display:flex}.calc-icon[data-astro-cid-kifpy4aa]{font-size:2.2rem;line-height:1}.calc-title[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin:0 0 .4rem;font-size:1.65rem}.calc-subtitle[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0;font-size:.95rem}.preset-group[data-astro-cid-kifpy4aa]{border-bottom:1px solid var(--color-border-light,#eee8df);flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1.75rem;padding-bottom:1.5rem;display:flex}.preset-label[data-astro-cid-kifpy4aa]{text-transform:uppercase;letter-spacing:.05em;color:var(--color-ink-light);font-size:.85rem;font-weight:600}.preset-buttons[data-astro-cid-kifpy4aa]{flex-wrap:wrap;gap:.5rem;display:flex}.preset-btn[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);color:var(--color-ink);cursor:pointer;border-radius:8px;padding:.45rem .8rem;font-size:.85rem;font-weight:500;transition:all .15s}.preset-btn[data-astro-cid-kifpy4aa]:hover{border-color:var(--color-accent);color:var(--color-accent)}.preset-btn[data-astro-cid-kifpy4aa].is-active{background:var(--color-ink);border-color:var(--color-ink);color:#fff}.calc-inputs-grid[data-astro-cid-kifpy4aa]{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.25rem;margin-bottom:2rem;display:grid}.calc-field[data-astro-cid-kifpy4aa]{flex-direction:column;gap:.4rem;display:flex}.calc-field[data-astro-cid-kifpy4aa] label[data-astro-cid-kifpy4aa]{color:var(--color-ink);font-size:.85rem;font-weight:600}.calc-field[data-astro-cid-kifpy4aa] input[data-astro-cid-kifpy4aa],.calc-field[data-astro-cid-kifpy4aa] select[data-astro-cid-kifpy4aa]{border:1px solid var(--color-border,#e5e0d8);background:var(--color-bg,#fbf9f5);color:var(--color-ink);border-radius:8px;padding:.65rem .85rem;font-family:inherit;font-size:1rem;transition:border-color .15s}.calc-field[data-astro-cid-kifpy4aa] input[data-astro-cid-kifpy4aa]:focus,.calc-field[data-astro-cid-kifpy4aa] select[data-astro-cid-kifpy4aa]:focus{border-color:var(--color-accent);outline:none;box-shadow:0 0 0 3px #c95d3b26}.calc-field--actions[data-astro-cid-kifpy4aa]{justify-content:flex-end}.calc-field--actions[data-astro-cid-kifpy4aa] button[data-astro-cid-kifpy4aa]{width:100%;height:42px}.calc-results-wrap[data-astro-cid-kifpy4aa]{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;display:grid}.result-tile[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);border-radius:12px;flex-direction:column;padding:1.25rem;display:flex;position:relative}.result-tile--primary[data-astro-cid-kifpy4aa]{border-color:var(--color-accent,#c95d3b);background:#c95d3b08}.result-tile--highlight[data-astro-cid-kifpy4aa]{background:#2b7a4b08;border-color:#2b7a4b}.result-tile-label[data-astro-cid-kifpy4aa]{text-transform:uppercase;letter-spacing:.05em;color:var(--color-ink-light);margin-bottom:.4rem;font-size:.78rem;font-weight:600}.result-tile-value[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin-bottom:.35rem;font-size:1.45rem;font-weight:700}.result-tile--primary[data-astro-cid-kifpy4aa] .result-tile-value[data-astro-cid-kifpy4aa]{color:var(--color-accent,#c95d3b)}.result-tile--highlight[data-astro-cid-kifpy4aa] .result-tile-value[data-astro-cid-kifpy4aa]{color:#2b7a4b}.result-tile-sub[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin-bottom:.75rem;font-size:.85rem}.btn-copy-small[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);color:var(--color-ink);cursor:pointer;border-radius:6px;align-self:flex-start;margin-top:auto;padding:.35rem .65rem;font-size:.78rem;font-weight:500;transition:all .15s}.btn-copy-small[data-astro-cid-kifpy4aa]:hover{border-color:var(--color-ink);background:var(--color-ink);color:#fff}.section-heading[data-astro-cid-kifpy4aa]{margin-bottom:2rem}.section-heading[data-astro-cid-kifpy4aa] h2[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin:.4rem 0 .85rem;font-size:clamp(1.75rem,3.5vw,2.35rem)}.section-lead[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);max-width:820px;font-size:1.1rem;line-height:1.6}.paper-fold-box[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:16px;grid-template-columns:1fr 1fr;align-items:center;gap:2rem;margin-bottom:2.5rem;padding:2rem;display:grid}.paper-fold-text[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:0 0 1rem;font-size:1.35rem}.paper-fold-text[data-astro-cid-kifpy4aa] ul[data-astro-cid-kifpy4aa]{flex-direction:column;gap:.5rem;margin:0;padding:0;font-size:.95rem;list-style:none;display:flex}.paper-fold-text[data-astro-cid-kifpy4aa] li[data-astro-cid-kifpy4aa] strong[data-astro-cid-kifpy4aa]{color:var(--color-accent)}.paper-fold-diagram[data-astro-cid-kifpy4aa]{justify-content:center;align-items:center;display:flex}.fold-visual-a0[data-astro-cid-kifpy4aa]{border:2px solid var(--color-ink);background:#00000005;width:280px;height:198px;position:relative}.fold-visual-a1[data-astro-cid-kifpy4aa]{border-right:2px solid var(--color-ink);width:50%;height:100%;position:absolute;top:0;left:0}.fold-visual-a2[data-astro-cid-kifpy4aa]{border-bottom:2px solid var(--color-ink);width:100%;height:50%;position:absolute;top:0;left:0}.fold-visual-a3[data-astro-cid-kifpy4aa]{border-right:2px solid var(--color-ink);width:50%;height:100%;position:absolute;top:0;left:0}.fold-visual-a4[data-astro-cid-kifpy4aa]{border-bottom:2px solid var(--color-accent);background:#c95d3b14;width:100%;height:50%;position:absolute;top:0;left:0}.fold-visual-a5[data-astro-cid-kifpy4aa]{border-right:1px solid var(--color-accent);width:50%;height:100%;position:absolute;top:0;left:0}.fold-visual-a6[data-astro-cid-kifpy4aa]{background:#2b7a4b26;border-bottom:1px solid #2b7a4b;width:100%;height:50%;position:absolute;top:0;left:0}.fold-label[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);padding:2px 4px;font-size:.7rem;font-weight:700;position:absolute}.fold-visual-a0[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa],.fold-visual-a1[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa],.fold-visual-a2[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa],.fold-visual-a3[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa]{bottom:8px;right:8px}.fold-visual-a4[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa]{color:var(--color-accent);bottom:4px;right:4px}.fold-visual-a5[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa]{bottom:2px;right:2px}.fold-visual-a6[data-astro-cid-kifpy4aa]>.fold-label[data-astro-cid-kifpy4aa]{color:#2b7a4b;font-size:.65rem;top:2px;left:2px}.table-responsive[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:12px;margin-bottom:3.5rem;overflow-x:auto}.format-table[data-astro-cid-kifpy4aa]{border-collapse:collapse;text-align:left;width:100%;font-size:.9rem}.format-table[data-astro-cid-kifpy4aa] th[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border-bottom:2px solid var(--color-border,#e5e0d8);white-space:nowrap;color:var(--color-ink);padding:1rem 1.15rem;font-weight:600}.format-table[data-astro-cid-kifpy4aa] td[data-astro-cid-kifpy4aa]{border-bottom:1px solid var(--color-border-light,#eee8df);color:var(--color-ink);vertical-align:middle;padding:.85rem 1.15rem}.format-table[data-astro-cid-kifpy4aa] tr[data-astro-cid-kifpy4aa]:hover td[data-astro-cid-kifpy4aa]{background:#00000004}.format-table[data-astro-cid-kifpy4aa] tr[data-astro-cid-kifpy4aa].highlight-row td[data-astro-cid-kifpy4aa]{background:#c95d3b0a}.format-table[data-astro-cid-kifpy4aa] code[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border-radius:4px;padding:.15rem .35rem;font-family:monospace;font-size:.85rem}.badge--pill[data-astro-cid-kifpy4aa]{background:var(--color-ink);color:#fff;border-radius:9999px;margin-right:.3rem;padding:.15rem .5rem;font-size:.75rem;font-weight:600;display:inline-block}.vs-card[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:16px;margin-bottom:2.5rem;padding:2rem}.vs-header[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin:0 0 1.25rem;font-size:1.35rem}.vs-grid[data-astro-cid-kifpy4aa]{grid-template-columns:1fr auto 1fr;align-items:center;gap:1.5rem;margin-bottom:1.5rem;display:grid}.vs-col[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);border-radius:12px;padding:1.5rem}.vs-badge[data-astro-cid-kifpy4aa]{text-transform:uppercase;letter-spacing:.05em;color:var(--color-accent);margin-bottom:.5rem;font-size:.8rem;font-weight:700;display:inline-block}.vs-dims[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin-bottom:.5rem;font-size:1.6rem;font-weight:700}.vs-desc[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0;font-size:.95rem;line-height:1.5}.vs-divider[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink-light);padding:0 .5rem;font-size:1.4rem;font-weight:700}.vs-tip[data-astro-cid-kifpy4aa]{border-left:4px solid var(--color-accent);background:#c95d3b0f;border-radius:0 8px 8px 0;padding:1rem 1.25rem;font-size:.95rem;line-height:1.5}.comparison-card-grid[data-astro-cid-kifpy4aa]{grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:2rem;display:grid}.comp-box[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:14px;padding:1.75rem}.comp-box--accent[data-astro-cid-kifpy4aa]{background:#c95d3b05;border-color:#c95d3b}.comp-badge[data-astro-cid-kifpy4aa]{text-transform:uppercase;color:var(--color-ink-light);font-size:.8rem;font-weight:600}.comp-badge--warm[data-astro-cid-kifpy4aa]{color:var(--color-accent)}.comp-header[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-ink);margin:.35rem 0 1rem;font-size:1.6rem}.comp-body[data-astro-cid-kifpy4aa] p[data-astro-cid-kifpy4aa]{color:var(--color-ink);margin:0 0 .5rem;font-size:.95rem}.comp-note[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border-radius:8px;margin-top:1.25rem;padding:.85rem;font-size:.85rem;line-height:1.45}.comp-note--warn[data-astro-cid-kifpy4aa]{color:var(--color-ink);background:#c95d3b14}.tips-banner[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:14px;gap:1.5rem;margin-bottom:3.5rem;padding:1.75rem;display:flex}.tips-icon[data-astro-cid-kifpy4aa]{font-size:2.2rem;line-height:1}.tips-content[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:0 0 .65rem;font-size:1.25rem}.tips-content[data-astro-cid-kifpy4aa] p[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0 0 .85rem;font-size:.95rem}.tips-content[data-astro-cid-kifpy4aa] ol[data-astro-cid-kifpy4aa]{color:var(--color-ink);flex-direction:column;gap:.4rem;margin:0;padding-left:1.25rem;font-size:.9rem;display:flex}.formula-grid[data-astro-cid-kifpy4aa]{grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:2rem;display:grid}.formula-card[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:14px;padding:1.75rem}.formula-tag[data-astro-cid-kifpy4aa]{text-transform:uppercase;letter-spacing:.05em;color:var(--color-accent);font-size:.75rem;font-weight:700}.formula-card[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:.35rem 0 1rem;font-size:1.3rem}.formula-math[data-astro-cid-kifpy4aa]{background:var(--color-ink);color:#fff;text-align:center;border-radius:8px;margin-bottom:1rem;padding:.85rem 1rem;font-family:monospace;font-size:1.15rem;font-weight:600}.formula-desc[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0 0 1rem;font-size:.9rem;line-height:1.5}.formula-example[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border-left:3px solid var(--color-ink);padding:.75rem 1rem;font-size:.85rem;line-height:1.5}.rule-of-thumb-card[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:14px;margin-bottom:3.5rem;padding:1.75rem}.rule-of-thumb-card[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:0 0 1.25rem;font-size:1.3rem}.rules-list[data-astro-cid-kifpy4aa]{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem;display:grid}.rule-item[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);border-radius:10px;padding:1.25rem}.rule-badge[data-astro-cid-kifpy4aa]{text-transform:uppercase;color:var(--color-ink-light);font-size:.78rem;font-weight:700}.rule-math[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);color:var(--color-accent);margin:.4rem 0;font-size:1.35rem;font-weight:700}.rule-item[data-astro-cid-kifpy4aa] p[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0;font-size:.85rem;line-height:1.45}.bleed-guide-card[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:16px;margin-bottom:4rem;padding:2.25rem}.bleed-guide-card[data-astro-cid-kifpy4aa] h2[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:.4rem 0 .85rem;font-size:1.65rem}.bleed-math-box[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);border-radius:8px;margin:1.25rem 0 1.5rem;padding:1.15rem;font-size:.95rem;line-height:1.6}.related-box[data-astro-cid-kifpy4aa]{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e5e0d8);border-radius:16px;padding:2.25rem}.related-box[data-astro-cid-kifpy4aa] h3[data-astro-cid-kifpy4aa]{font-family:var(--font-display,serif);margin:0 0 1.5rem;font-size:1.35rem}.related-links-grid[data-astro-cid-kifpy4aa]{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.25rem;display:grid}.related-card[data-astro-cid-kifpy4aa]{background:var(--color-bg,#fbf9f5);border:1px solid var(--color-border,#e5e0d8);color:var(--color-ink);border-radius:10px;align-items:flex-start;gap:1rem;padding:1.25rem;text-decoration:none;transition:all .15s;display:flex}.related-card[data-astro-cid-kifpy4aa]:hover{border-color:var(--color-accent);transform:translateY(-2px)}.rel-icon[data-astro-cid-kifpy4aa]{font-size:1.75rem;line-height:1}.related-card[data-astro-cid-kifpy4aa] strong[data-astro-cid-kifpy4aa]{color:var(--color-ink);margin-bottom:.25rem;font-size:1rem;display:block}.related-card[data-astro-cid-kifpy4aa] p[data-astro-cid-kifpy4aa]{color:var(--color-ink-light);margin:0;font-size:.85rem;line-height:1.4}@media (width<=768px){.calc-card[data-astro-cid-kifpy4aa]{padding:1.5rem}.paper-fold-box[data-astro-cid-kifpy4aa]{grid-template-columns:1fr}.vs-grid[data-astro-cid-kifpy4aa]{text-align:center;grid-template-columns:1fr}.vs-divider[data-astro-cid-kifpy4aa]{padding:.5rem 0}.comparison-card-grid[data-astro-cid-kifpy4aa],.formula-grid[data-astro-cid-kifpy4aa]{grid-template-columns:1fr}.tips-banner[data-astro-cid-kifpy4aa]{flex-direction:column}}