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14px);background:#fff;margin-top:15px;padding:30px 34px}.math-route-section>h2{letter-spacing:-.035em;margin:0 0 22px;font-size:clamp(24px,3vw,34px)}.math-route-section-lead{color:#62717a;margin:-8px 0 22px;font-size:12px;line-height:1.8}.math-route-principles{grid-template-columns:repeat(2,1fr);gap:8px;margin:0;padding:0;list-style:none;display:grid}.math-route-principles li{border:1px solid #dfe6e2;grid-template-columns:30px 1fr;align-items:start;gap:10px;min-height:86px;padding:14px;display:grid}.math-route-principles span{background:var(--accent-soft);width:26px;height:26px;color:var(--accent-dark);border-radius:50%;place-items:center;font:800 9px Arial,sans-serif;display:grid}.math-route-principles p{color:#46555d;margin:1px 0 0;font-size:13px;line-height:1.75}.math-route-entry-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.math-route-entry-grid>article{scroll-margin-top:calc(var(--math-header-h,72px) + 14px);border:1px solid 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14px;font-size:12px;line-height:1.8}.math-route-topic-list{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.math-route-topic-list>a{background:#fff;border:1px solid #e0e6e2;min-height:142px;padding:15px}.math-route-topic-list>a:hover{border-color:var(--accent);background:#f9fcfa}.math-route-topic-meta{flex-wrap:wrap;gap:4px;display:flex}.math-route-topic-meta span{color:#637169;background:#f0f3f2;border-radius:99px;padding:3px 6px;font-size:8px}.math-route-topic-meta .priority-must{color:var(--accent-dark);background:#e5f2e9;font-weight:800}.math-route-topic-meta .priority-should{color:#52637d;background:#eef1f8;font-weight:800}.math-route-topic-meta .status-open{color:#1f6d43;background:#dff1e5;font-weight:800}.math-route-topic-meta .status-planned{color:#8b6613;background:#fff2d5;font-weight:800}.math-route-topic-list h4{margin:12px 0 7px;font-size:15px}.math-route-topic-list p{color:#63727b;margin:0;font-size:11px;line-height:1.7}.math-route-task-box{background:#f5faf7;border:1px solid #d7e5dc;grid-template-columns:110px 1fr;gap:16px;margin-top:10px;padding:14px 16px;display:grid}.math-route-task-box b{color:var(--accent-dark);font-size:11px}.math-route-task-box ol{color:#4e6156;margin:0;padding-left:18px;font-size:11px;line-height:1.8}.math-route-exit{color:#68562c;background:#fffaf0;border:1px solid #eadfbe;margin:10px 0 0;padding:12px 14px;font-size:11px;line-height:1.75}.math-route-source-grid{grid-template-columns:repeat(2,1fr);gap:9px;display:grid}.math-route-source-grid>article{border:1px solid #e0e6e3;flex-direction:column;padding:17px;display:flex}.math-route-source-grid>article>div{justify-content:space-between;gap:10px;display:flex}.math-route-source-grid>article>div span{color:var(--accent-dark);font-size:9px;font-weight:800}.math-route-source-grid>article>div small{color:var(--muted);font-size:9px}.math-route-source-grid h3{margin:10px 0 8px;font-size:14px;line-height:1.55}.math-route-source-grid p{color:#65737c;margin:0;font-size:10.5px;line-height:1.7}.math-route-source-grid footer{color:#7b878d;justify-content:space-between;gap:10px;margin-top:auto;padding-top:14px;font-size:8.5px;display:flex}.math-route-source-grid code{color:#596962;font:9px Consolas,monospace}.math-route-archive-summary{border:1px solid var(--line);background:#f7f9f8;flex-wrap:wrap;align-items:center;gap:7px;margin-top:10px;padding:13px 15px;display:flex}.math-route-archive-summary b{margin-right:6px;font-size:11px}.math-route-archive-summary span{color:#607069;background:#fff;padding:4px 7px;font-size:9px}.math-route-gate-grid{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.math-route-gate-grid article{background:#f8fbf9;border:1px solid #dce4df;padding:16px}.math-route-gate-grid article:last-child{grid-column:1/-1}.math-route-gate-grid small{color:var(--accent-dark);letter-spacing:.08em;font-size:9px;font-weight:800}.math-route-gate-grid p{color:#53635a;margin:7px 0 0;font-size:11.5px;line-height:1.75}.math-system-workspace{--reader-top:var(--math-header-h,72px);background:#f6f7f4;grid-template-columns:282px minmax(0,1fr) 250px;grid-template-areas:"left main right";align-items:start;display:grid}.math-system-left,.math-system-right{top:var(--reader-top);z-index:32;height:calc(100vh - var(--reader-top));scrollbar-width:thin;background:#fff;align-self:start;min-width:0;position:sticky;overflow:auto}.math-system-left{border-right:1px solid var(--line);grid-area:left}.math-system-right{border-left:1px solid var(--line);grid-area:right}.math-system-reader-main{grid-area:main;width:100%;min-width:0;max-width:1040px;margin:0 auto;padding:30px 36px 80px}.math-system-workspace[data-left=hidden]{grid-template-columns:0 minmax(0,1fr) 250px}.math-system-workspace[data-left=hidden] 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