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var(--paper-line);border-radius:8px;padding:14px 16px 14px 18px;background:linear-gradient(90deg,rgb(var(--brand-rgb) / .12),transparent 58%),var(--paper);color:#273f4b;box-shadow:var(--shadow)}.school-greeting strong{font-size:1.18rem;line-height:1.35}.school-greeting span{color:var(--muted);font-size:.94rem;font-weight:700;line-height:1.55}.school-greeting-start{margin-bottom:16px}.school-greeting-end{margin-top:26px}.teacher-panel,.lesson-summary,.care-sheet,.mini-product-cta,.next-lessons{display:grid;gap:12px;margin-bottom:18px;border:1px solid var(--line);border-radius:8px;padding:18px;background:var(--paper);box-shadow:var(--shadow)}.lesson-summary h2,.care-sheet h2,.mini-product-cta h2,.next-lessons h2{font-size:1.32rem}.teacher-panel h2{font-size:1.22rem}.teacher-panel{grid-template-columns:112px minmax(0,1fr);gap:14px;align-items:center;padding:12px;background:linear-gradient(rgb(var(--brand-rgb) / .045) 1px,transparent 1px) 0 18px / 100% 30px,var(--paper)}.teacher-portrait{width:112px;height:116px;border:1px solid #c7ddd3;border-radius:8px;background:#e8f2f4;object-fit:contain;object-position:bottom center}.teacher-copy{display:grid;gap:8px;min-width:0}.teacher-heading{display:flex;flex-wrap:wrap;gap:6px 8px;align-items:center}.teacher-heading h2{margin:0;line-height:1.25;overflow-wrap:anywhere}.teacher-subject{display:inline-flex;width:fit-content;margin:0;border-radius:999px;padding:3px 9px;background:#e8f2f4;color:var(--brand-dark);font-size:.78rem;font-weight:800}.teacher-panel blockquote{margin:0;border-left:4px solid var(--brand);padding:6px 0 6px 10px;color:var(--ink);font-size:.98rem;font-weight:900;line-height:1.45;overflow-wrap:anywhere;display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.teacher-profile-summary{margin:0;color:var(--muted);font-size:.9rem;font-weight:800;line-height:1.55;display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.teacher-details{margin-top:2px;border-top:1px solid rgb(var(--brand-rgb) / .16);padding-top:8px}.teacher-details summary{display:inline-flex;align-items:center;gap:6px;width:fit-content;cursor:pointer;color:var(--brand-dark);font-size:.86rem;font-weight:900;line-height:1.4;text-decoration:underline;text-underline-offset:4px}.teacher-details summary::-webkit-details-marker{display:none}.teacher-details summary:before{content:"+";display:inline-grid;place-items:center;width:18px;height:18px;border:1px solid rgb(var(--brand-rgb) / .34);border-radius:999px;background:#edf7fa;color:var(--brand);font-size:.82rem;line-height:1}.teacher-details[open] summary:before{content:"-"}.teacher-details-body{display:grid;gap:6px;margin-top:8px;border-radius:6px;padding:8px 10px;background:#ffffffb8}.teacher-details-body p{margin:0;color:var(--muted);font-size:.84rem;font-weight:750;line-height:1.55}.lesson-summary{border-left:5px solid var(--brand);padding:14px 16px;background:#fbfdf9}.lesson-summary h2{margin-bottom:12px}.lesson-summary ul{display:grid;gap:8px;margin:0;padding:0;list-style:none}.lesson-summary li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:9px;align-items:start;color:var(--ink);font-size:1rem;font-weight:900;line-height:1.45}.lesson-summary li:before{content:"";display:grid;width:22px;height:22px;place-items:center;border:2px solid var(--brand);border-radius:4px;background:linear-gradient(135deg,transparent 48%,var(--brand) 49%,var(--brand) 58%,transparent 59%),linear-gradient(45deg,transparent 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var(--warm);border-radius:8px;background:#fffbe8}.replacement-check-head{display:grid;gap:5px;min-width:0}.replacement-check-head h2{margin:0;font-size:1.22rem;line-height:1.35}.replacement-check-head p{margin:0;color:var(--muted);font-size:.92rem;font-weight:800;line-height:1.55}.replacement-check-grid{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:8px}.replacement-check-grid span{border:1px solid #edd8b8;border-radius:999px;padding:5px 10px;background:#fff;color:var(--ink);font-size:.86rem;font-weight:800}.replacement-check-actions{grid-row:1 / span 2;grid-column:2;display:flex;flex-wrap:wrap;gap:10px;margin-top:0}.replacement-check-actions .button{min-height:42px;white-space:nowrap}.next-lessons{margin-top:30px;padding:16px;background:#f8fbfa}.next-lessons h2{margin-bottom:12px}.next-lesson-grid{display:grid;gap:8px}.next-lesson-grid a{display:grid;grid-template-columns:82px minmax(0,1fr);gap:10px;align-items:center;border:1px solid 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.action-icon{background-color:#eef3fb;background-position:-76px 50%}.action-card[data-action-kind=replacement] .action-icon{background-color:#fff6d9;background-position:-114px 50%}.action-card[data-action-icon] .action-icon{background-image:url("data:image/svg+xml,%3Csvg width='96' height='24' viewBox='0 0 96 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%230b4d4a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 8h10M5 12h14M5 16h9'/%3E%3Cpath d='M17 6l3 3M20 6l-3 3M17 18l3-3M20 18l-3-3'/%3E%3Cpath d='M36 4c-4 5-6 8-6 11a6 6 0 0 0 12 0c0-3-2-6-6-11z'/%3E%3Cpath d='M54 8c2-2 6-2 8 0M52 14c4 3 10 3 14 0M55 18c2 1 6 1 8 0'/%3E%3Cpath d='M78 6h12v12H78zM81 9h6M81 13h4'/%3E%3Cpath d='M91 8c2 2 2 6 0 8'/%3E%3C/g%3E%3C/svg%3E")}.action-card[data-action-icon=cooling] .action-icon{background-color:#e8f6fb;background-position:0 50%}.action-card[data-action-icon=leak] .action-icon{background-color:#e7f4fb;background-position:-38px 50%}.action-card[data-action-icon=noise] .action-icon{background-color:#fff2e8;background-position:-76px 50%}.action-card[data-action-icon=remote] .action-icon{background-color:#eef3fb;background-position:-114px 50%}.chapter-list{display:grid;gap:14px}.chapter-card{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;border:1px solid var(--line);border-radius:8px;padding:20px;background:var(--surface);box-shadow:var(--shadow)}.chapter-card h3{font-size:1.32rem}.chapter-card p{color:var(--muted)}.chapter-figure{margin:14px 0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface-soft)}.chapter-figure img{width:100%;aspect-ratio:16 / 9;object-fit:cover}.chapter-figure figcaption{padding:10px 12px;font-size:.88rem;color:var(--muted)}.chapter-meta{display:grid;align-content:start;gap:8px}.chapter-meta span{display:inline-flex;align-items:center;justify-content:center;min-height:34px;border-radius:8px;padding:6px 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.12)}.diagnosis-recommendation{margin-bottom:12px}.diagnosis-recommendation-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;border:1px solid var(--brand-line);border-left:6px solid var(--brand);border-radius:8px;padding:14px;background:#fbfdf9}.diagnosis-recommendation-card.replacement{border-color:#ead2b8;border-left-color:var(--warm);background:#fffbe8}.diagnosis-recommendation-card.danger{border-color:#efc5c5;border-left-color:var(--danger);background:#fff7f5}.diagnosis-recommendation-card h3{font-size:1.18rem}.diagnosis-recommendation-card p:not(.eyebrow){margin:8px 0 0;color:var(--muted);font-size:.94rem;line-height:1.6}.diagnosis-recommendation-actions{display:grid;gap:8px;min-width:176px}.diagnosis-recommendation-actions .button{width:100%}.diagnosis-result{display:grid;gap:10px}.diagnosis-accordion{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.diagnosis-accordion 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small{color:var(--muted);font-weight:700;line-height:1.5}.product-card{display:flex;flex-direction:column;gap:10px;min-height:100%}.product-image{width:100%;aspect-ratio:1 / 1;border:1px solid var(--line);border-radius:8px;object-fit:cover;background:var(--surface-soft)}.comparison-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.comparison-product-card{display:grid;grid-template-columns:112px minmax(0,1fr);gap:12px;align-items:start}.comparison-product-card:not(.curation-product-card){grid-template-columns:1fr}.comparison-product-card .product-image{width:112px;aspect-ratio:4 / 3}.comparison-card-copy{min-width:0}.comparison-card-copy h3{margin:0 0 6px;font-size:1.16rem;line-height:1.35}.comparison-fit{margin:0 0 8px;color:var(--ink);font-weight:800}.comparison-specs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin:10px 0}.comparison-specs div{border:1px solid var(--line);border-radius:8px;padding:8px;background:var(--surface-soft)}.comparison-specs 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