/* Original sensor teaching diagrams; intentionally scoped to snf-* classes. */
.snf-atlas,.snf-lesson-visual{--snf-ink:#24382d;--snf-green:#356654;--snf-muted:#62736a;--snf-paper:#faf9f3;--snf-border:#dce3d8;--snf-warm:#9b653c;color:var(--snf-ink);min-width:0;max-width:100%;box-sizing:border-box}
.snf-atlas{padding:clamp(18px,4vw,38px);border:1px solid var(--snf-border);border-radius:22px;background:linear-gradient(145deg,#f9faf4,#f0f3e9);margin:24px 0 32px}
.snf-atlas-intro{max-width:640px}.snf-eyebrow{font-size:11px!important;font-weight:750;letter-spacing:.18em;line-height:1.5;color:var(--snf-green);margin:0 0 10px!important}.snf-atlas-intro h2{font-size:clamp(23px,3vw,34px);line-height:1.3;letter-spacing:-.025em;margin:0 0 14px}.snf-atlas-intro>p:last-child{color:#52675a;font-size:15px;line-height:1.85;margin:0}
.snf-figure{margin:18px 0 0;padding:clamp(8px,2vw,20px);min-width:0;border:1px solid var(--snf-border);border-radius:16px;background:var(--snf-paper);box-sizing:border-box;overflow:hidden}
.snf-atlas>.snf-figure{margin:24px auto 0;max-width:680px;background:rgba(255,255,255,.52)}
.snf-svg{display:block;width:100%;height:auto;max-width:590px;margin:0 auto;color:var(--snf-ink);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;overflow:visible}
.snf-svg text{fill:var(--snf-ink);font-size:18px;font-weight:500}.snf-svg .snf-label{font-size:19px;font-weight:680}.snf-svg .snf-small{font-size:16px;fill:#53675a}.snf-svg .snf-tick{font-size:16px;fill:#5b6b60;font-variant-numeric:tabular-nums}.snf-svg .snf-axis-label{font-size:17px;font-weight:620}.snf-svg .snf-panel{fill:#f1f4eb;stroke:#d6dfd2;stroke-width:1.5}.snf-svg .snf-shadow{fill:#cbd4c7;opacity:.35}
.snf-rule{stroke:#7e9083;stroke-width:1.8;fill:none}.snf-grid{stroke:#dce4d8;stroke-width:1;fill:none}.snf-flow{stroke:#356654;stroke-width:2.3;fill:none;stroke-linejoin:round}.snf-dash{stroke:#92a68e;stroke-width:1.8;stroke-dasharray:5 5;fill:none}.snf-leaders{stroke:#74917a;stroke-width:1.6;fill:none;stroke-linejoin:round}.snf-reference{stroke:#9b653c;stroke-width:2;fill:none}.snf-dot{fill:#356654;stroke:#faf9f3;stroke-width:2}.snf-dot-warm{fill:#a56b3e;stroke:#faf9f3;stroke-width:2}.snf-curve{stroke:#356654;stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round}.snf-curve-alt{stroke:#9caaa1;stroke-width:2.4;stroke-dasharray:6 4}.snf-resistor{stroke:#52695e;stroke-width:2.5;fill:none;stroke-linecap:round;stroke-linejoin:round}.snf-resistor.snf-active{stroke:#9b653c}.snf-plate{stroke:#356654;stroke-width:7;stroke-linecap:round;fill:none}.snf-coil{stroke:#356654;stroke-width:3;fill:none}.snf-eddy{stroke:#6e8771;stroke-width:1.5;fill:none}.snf-decision{fill:#e8eee1;stroke:#aabc9e;stroke-width:1.6}
.snf-figure figcaption{border-top:1px solid var(--snf-border);padding:13px 2px 2px;margin:4px 0 0;font-size:13px;line-height:1.8;color:#5b6d60;text-align:left;overflow-wrap:anywhere}
.snf-sensor-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px}.snf-sensor-card{min-width:0;padding:18px;border:1px solid #d7e0d1;background:#fcfcf8;border-radius:14px;box-sizing:border-box}.snf-sensor-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:13px}.snf-icon{width:31px;height:31px;flex:none;fill:none;stroke:#356654;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.snf-chip{font-size:11px;line-height:1.5;padding:4px 7px;border-radius:30px;background:#eaf0e4;color:#526f51;white-space:nowrap}.snf-sensor-card h3{font-size:18px;line-height:1.5;margin:0 0 3px;font-weight:700;overflow-wrap:anywhere}.snf-sensor-card .snf-output{font-size:13px;font-weight:650;color:#356654;line-height:1.6;margin:0 0 9px}.snf-sensor-card p:last-child{font-size:13px;line-height:1.85;color:#617062;margin:0;overflow-wrap:anywhere}
.snf-lesson-visual{margin:18px 0 24px}.snf-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:10px}.snf-fact{min-width:0;border-left:3px solid #b9cbaa;background:#f1f4eb;border-radius:0 9px 9px 0;padding:12px 14px;overflow-wrap:anywhere}.snf-fact-label{display:block;font-size:12px;line-height:1.6;color:#65735f;margin-bottom:4px}.snf-fact strong{display:block;font-size:14px;line-height:1.7;font-weight:650;color:#354c39}
.snf-reading{font-size:13px;border-top:1px solid var(--snf-border);padding-top:13px;margin-top:20px}.snf-reading summary{cursor:pointer;font-weight:600;line-height:1.7;color:#52684f}.snf-reading ul{padding-left:19px;margin:10px 0 0}.snf-reading li{margin:7px 0;line-height:1.8}.snf-reading a{color:#356654;text-underline-offset:3px}.snf-reading a:focus-visible,.snf-reading summary:focus-visible{outline:2px solid #356654;outline-offset:4px;border-radius:2px}
@media(min-width:1100px){.snf-sensor-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.snf-sensor-card{padding:16px}.snf-chip{font-size:10px;padding:3px 6px}}
@media(max-width:480px){.snf-atlas{padding:15px;border-radius:16px}.snf-atlas-intro h2{font-size:23px}.snf-atlas-intro>p:last-child{font-size:14px}.snf-sensor-grid{grid-template-columns:1fr;gap:9px}.snf-sensor-card{padding:16px}.snf-sensor-top{float:left;display:block;margin:1px 13px 6px 0}.snf-sensor-top .snf-chip{display:none}.snf-sensor-card h3{font-size:17px}.snf-sensor-card p:last-child{clear:both;font-size:14px;line-height:1.8;padding-top:5px}.snf-figure{padding:7px;border-radius:12px}.snf-figure figcaption{font-size:13px;line-height:1.85;padding:11px 4px 3px}.snf-facts{grid-template-columns:1fr;gap:7px}.snf-fact{padding:10px 12px}.snf-fact-label{margin-bottom:2px}.snf-svg .snf-small,.snf-svg .snf-tick{font-size:18px}.snf-svg .snf-axis-label{font-size:19px}.snf-svg .snf-label{font-size:20px}}
@media(prefers-reduced-motion:reduce){.snf-atlas *,.snf-lesson-visual *{scroll-behavior:auto;animation:none;transition:none}}