.learn-hero[data-astro-cid-c2taxyin]{padding:120px 0 64px}.learn-hero-inner[data-astro-cid-c2taxyin]{max-width:760px;margin:0 auto;padding:0 var(--container-padding)}.learn-badge[data-astro-cid-c2taxyin]{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent);margin-bottom:16px}.learn-hero[data-astro-cid-c2taxyin] h1[data-astro-cid-c2taxyin]{font-family:var(--font-serif);font-size:clamp(32px,4vw,48px);font-weight:700;color:var(--color-text);line-height:1.15;margin-bottom:20px;letter-spacing:-.5px}.learn-subtitle[data-astro-cid-c2taxyin]{font-size:19px;line-height:1.6;color:var(--color-text-muted);max-width:600px;margin-bottom:16px}.learn-reading-time[data-astro-cid-c2taxyin]{font-size:13px;font-weight:600;color:#9ca3af;letter-spacing:.02em}.toc-section[data-astro-cid-c2taxyin]{max-width:760px;margin:0 auto;padding:20px var(--container-padding)}.toc-inner[data-astro-cid-c2taxyin]{border-left:3px solid var(--color-accent);padding-left:24px}.toc-label[data-astro-cid-c2taxyin]{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-accent);margin-bottom:12px}.toc-list[data-astro-cid-c2taxyin]{list-style:none;padding:0;margin:0;counter-reset:toc}.toc-list[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin]{counter-increment:toc;margin-bottom:6px}.toc-list[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin]:last-child{margin-bottom:0}.toc-list[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin] a[data-astro-cid-c2taxyin]{font-size:15px;color:var(--color-text-muted);text-decoration:none;transition:color .15s;line-height:1.6}.toc-list[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin] a[data-astro-cid-c2taxyin]:before{content:counter(toc) ".";display:inline-block;width:24px;color:#d1d5db;font-weight:600;font-size:14px}.toc-list[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin] a[data-astro-cid-c2taxyin]:hover{color:var(--color-accent)}.learn-article[data-astro-cid-c2taxyin]{padding:40px 0 80px}.learn-article-inner[data-astro-cid-c2taxyin]{max-width:760px;margin:0 auto;padding:0 var(--container-padding)}.learn-article-inner[data-astro-cid-c2taxyin] section[data-astro-cid-c2taxyin]{margin-bottom:64px;scroll-margin-top:calc(var(--nav-height) + 32px)}.learn-article-inner[data-astro-cid-c2taxyin] section[data-astro-cid-c2taxyin]:last-child{margin-bottom:0}.learn-article-inner[data-astro-cid-c2taxyin] h2[data-astro-cid-c2taxyin]{font-family:var(--font-serif);font-size:clamp(22px,2.5vw,30px);font-weight:700;color:var(--color-text);margin-bottom:24px;padding-top:16px}.learn-article-inner[data-astro-cid-c2taxyin] h3[data-astro-cid-c2taxyin]{font-size:18px;font-weight:600;color:var(--color-text);margin-top:32px;margin-bottom:12px;line-height:1.4}.learn-article-inner[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:17px;line-height:1.8;color:var(--color-text-muted);margin-bottom:20px}.learn-article-inner[data-astro-cid-c2taxyin] ul[data-astro-cid-c2taxyin]{padding-left:20px;margin-bottom:24px}.learn-article-inner[data-astro-cid-c2taxyin] ul[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin]{font-size:17px;line-height:1.8;color:var(--color-text-muted);margin-bottom:8px}.learn-article-inner[data-astro-cid-c2taxyin] ul[data-astro-cid-c2taxyin] li[data-astro-cid-c2taxyin] strong[data-astro-cid-c2taxyin]{color:var(--color-text);font-weight:600}.learn-image[data-astro-cid-c2taxyin]{margin:48px 0;border-radius:var(--radius-lg);overflow:hidden}.callout[data-astro-cid-c2taxyin]{margin:32px 0;padding:24px 28px;border-radius:var(--radius-lg);border-left:3px solid}.callout--insight[data-astro-cid-c2taxyin]{background:#f5f3ff;border-color:var(--color-accent)}.callout--practice[data-astro-cid-c2taxyin]{background:#f0fdf4;border-color:#22c55e}.callout-label[data-astro-cid-c2taxyin]{display:block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}.callout--insight[data-astro-cid-c2taxyin] .callout-label[data-astro-cid-c2taxyin]{color:var(--color-accent)}.callout--practice[data-astro-cid-c2taxyin] .callout-label[data-astro-cid-c2taxyin]{color:#16a34a}.callout[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:16px;line-height:1.7;color:var(--color-text);margin:0;font-weight:450}.problem-grid[data-astro-cid-c2taxyin]{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0}.problem-card[data-astro-cid-c2taxyin]{border:1px solid #E5E7EB;border-radius:var(--radius-lg);padding:24px;background:#fff;border-top:3px solid #EF4444}.problem-card[data-astro-cid-c2taxyin] h3[data-astro-cid-c2taxyin]{font-size:16px;font-weight:700;color:var(--color-text);margin:0 0 8px}.problem-card[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:15px;line-height:1.7;color:var(--color-text-muted);margin:0}.capability-grid[data-astro-cid-c2taxyin]{display:grid;grid-template-columns:1fr;gap:20px;margin:32px 0}.capability-card[data-astro-cid-c2taxyin]{border:1px solid #E5E7EB;border-radius:var(--radius-lg);padding:24px;background:#fff}.capability-card[data-astro-cid-c2taxyin] h3[data-astro-cid-c2taxyin]{font-size:17px;font-weight:700;color:var(--color-text);margin:0 0 12px}.capability-card[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:16px;line-height:1.7;color:var(--color-text-muted);margin:0}.positioning-table-wrap[data-astro-cid-c2taxyin]{overflow-x:auto;margin:32px 0;border:1px solid #E5E7EB;border-radius:var(--radius-lg)}.positioning-table[data-astro-cid-c2taxyin]{width:100%;border-collapse:collapse;font-size:15px}.positioning-table[data-astro-cid-c2taxyin] th[data-astro-cid-c2taxyin]{text-align:left;padding:14px 20px;font-weight:600;color:var(--color-text);background:#f9fafb;border-bottom:1px solid #E5E7EB}.positioning-table[data-astro-cid-c2taxyin] td[data-astro-cid-c2taxyin]{padding:14px 20px;color:var(--color-text-muted);line-height:1.6;border-bottom:1px solid #F3F4F6;vertical-align:top}.positioning-table[data-astro-cid-c2taxyin] tr[data-astro-cid-c2taxyin]:last-child td[data-astro-cid-c2taxyin]{border-bottom:none}.positioning-table[data-astro-cid-c2taxyin] td[data-astro-cid-c2taxyin]:first-child{font-weight:600;color:var(--color-text);white-space:nowrap}.pitfall-list[data-astro-cid-c2taxyin]{display:flex;flex-direction:column;gap:24px;margin-top:24px}.pitfall[data-astro-cid-c2taxyin]{border-left:3px solid #E5E7EB;padding-left:24px}.pitfall[data-astro-cid-c2taxyin] h3[data-astro-cid-c2taxyin]{font-size:17px;font-weight:600;color:var(--color-text);margin:0 0 8px}.pitfall[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:16px;line-height:1.7;color:var(--color-text-muted);margin:0}.bridge-section[data-astro-cid-c2taxyin]{padding:64px 0;background:#f9fafb;border-top:1px solid #E5E7EB;border-bottom:1px solid #E5E7EB}.bridge-inner[data-astro-cid-c2taxyin]{max-width:760px;margin:0 auto;padding:0 var(--container-padding)}.bridge-inner[data-astro-cid-c2taxyin] h2[data-astro-cid-c2taxyin]{font-family:var(--font-serif);font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--color-text);margin-bottom:16px}.bridge-inner[data-astro-cid-c2taxyin] p[data-astro-cid-c2taxyin]{font-size:17px;line-height:1.7;color:var(--color-text-muted);margin-bottom:16px}.bridge-inline[data-astro-cid-c2taxyin]{color:var(--color-accent);text-decoration:none;font-weight:500;transition:color .15s}.bridge-inline[data-astro-cid-c2taxyin]:hover{color:var(--color-dark)}.bridge-link[data-astro-cid-c2taxyin]{font-size:16px;font-weight:600;color:var(--color-dark);text-decoration:none;transition:color .15s}.bridge-link[data-astro-cid-c2taxyin]:hover{color:var(--color-accent)}.related-section[data-astro-cid-c2taxyin]{padding:80px 0}.related-inner[data-astro-cid-c2taxyin]{max-width:760px;margin:0 auto;padding:0 var(--container-padding)}.related-inner[data-astro-cid-c2taxyin] h2[data-astro-cid-c2taxyin]{font-family:var(--font-serif);font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--color-text);margin-bottom:32px}.related-grid[data-astro-cid-c2taxyin]{display:grid;grid-template-columns:1fr 1fr;gap:16px}.related-card[data-astro-cid-c2taxyin]{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid #E5E7EB;border-radius:var(--radius-lg);text-decoration:none;transition:border-color .15s}.related-card[data-astro-cid-c2taxyin]:hover{border-color:var(--color-accent)}.related-title[data-astro-cid-c2taxyin]{font-size:16px;font-weight:600;color:var(--color-text)}.related-desc[data-astro-cid-c2taxyin]{font-size:14px;color:var(--color-text-muted);line-height:1.5}@media(max-width:768px){.problem-grid[data-astro-cid-c2taxyin],.related-grid[data-astro-cid-c2taxyin]{grid-template-columns:1fr}}@media(max-width:640px){.learn-hero[data-astro-cid-c2taxyin]{padding:80px 0 40px}.learn-article[data-astro-cid-c2taxyin]{padding:24px 0 48px}.learn-article-inner[data-astro-cid-c2taxyin] section[data-astro-cid-c2taxyin]{margin-bottom:48px}.bridge-section[data-astro-cid-c2taxyin],.related-section[data-astro-cid-c2taxyin]{padding:48px 0}.callout[data-astro-cid-c2taxyin]{padding:20px}.learn-hero-inner[data-astro-cid-c2taxyin],.toc-inner[data-astro-cid-c2taxyin],.learn-article-inner[data-astro-cid-c2taxyin],.bridge-inner[data-astro-cid-c2taxyin],.related-inner[data-astro-cid-c2taxyin]{padding:0 20px}}