:root{--paper:#f5f7f5;--ink:#1d342c;--text:#34483f;--muted:#66776d;--line:#dfe7df;--green:#235f48;--mint:#e9f2e9;--header:112px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 22px)}body{margin:0;background:var(--paper);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}button,select,textarea{font:inherit}button,select{cursor:pointer}button{color:inherit;touch-action:manipulation}a{color:inherit;text-decoration:none}button,a,select{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid #699e7d;outline-offset:4px}h1,h2,h3,p,figure,ul,ol,dl{margin:0}h1,h2,h3{color:var(--ink)}h1{font-size:clamp(34px,4.2vw,52px);font-weight:650;line-height:1.32;letter-spacing:-1.8px}h2{font-size:28px;line-height:1.45;font-weight:650;letter-spacing:-.6px}h3{font-size:21px;line-height:1.55;font-weight:650}strong{font-weight:650}svg{display:block}section{scroll-margin-top:12px}.skip-link{position:fixed;z-index:100;left:16px;top:8px;transform:translateY(-150%);background:var(--green);color:white;padding:10px 16px;border-radius:8px}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:20;background:rgba(245,247,245,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner,.nav-inner{max-width:1120px;margin:auto;padding:0 32px}.header-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{font-size:24px;letter-spacing:-1.5px;font-weight:750;color:var(--ink);line-height:1}.brand-mark>span{display:inline-block;width:6px;height:6px;background:#81a98c;border-radius:50%;margin:0 0 2px 3px}.brand-name{font-size:14px;font-weight:600;border-left:1px solid #cbd6ce;padding-left:14px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:11px 21px;border:1px solid transparent;border-radius:9px;font-weight:600;font-size:14px;line-height:1.5;transition:background .16s,transform .16s;white-space:nowrap}.button:active{transform:translateY(1px)}.button-primary{background:var(--green);color:white}.button-primary:hover{background:#184b37}.button-outline{background:transparent;border-color:#bccfc0;color:var(--green)}.button-outline:hover{background:var(--mint)}.button-small{min-height:38px;padding:7px 13px;font-size:13px}.section-nav{border-top:1px solid #e9eeea}.nav-inner{height:47px;display:flex;gap:30px;overflow-x:auto;scrollbar-width:none}.nav-inner::-webkit-scrollbar{display:none}.nav-inner>a{flex-shrink:0;display:flex;align-items:center;font-size:14px;white-space:nowrap;border-bottom:2px solid transparent;color:var(--muted)}.nav-inner>a[aria-current]{color:var(--green);border-bottom-color:var(--green);font-weight:650}
.page-shell{max-width:1120px;margin:auto;padding:0 32px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:64px;align-items:center;padding:66px 0 58px}.eyebrow{font-size:12px;color:var(--green);font-weight:650;letter-spacing:1px;display:flex;align-items:center;gap:8px;line-height:1.6}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#639271;flex-shrink:0}.hero h1{margin-top:20px}.title-dot{color:#86a88b}.hero-description{color:var(--muted);margin-top:20px;font-size:16px;line-height:1.85;max-width:450px}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:30px}.text-link{font-size:14px;color:var(--green);font-weight:600}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.version-line{font-size:12px;color:var(--muted);margin-top:22px}.version-line>span{margin:0 8px}.overview-card{padding:28px;background:#eaf0e7;border:1px solid #d9e4d7;border-radius:18px}.overview-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:#596e5c;font-weight:600}.small-chip{padding:3px 9px;background:#f8fbf5;border:1px solid #d7e3d5;border-radius:5px;font-size:11px;color:#527052;white-space:nowrap}.overview-question{font-size:29px;line-height:1.5;font-weight:600;color:#2a4934;margin-top:22px;letter-spacing:-.7px}.overview-explanation{font-size:14px;line-height:1.9;color:#5c705e;margin-top:14px}.overview-bottom{display:grid;grid-template-columns:repeat(3,1fr);margin-top:28px;padding-top:20px;border-top:1px solid #d2dfce}.overview-bottom>div{display:flex;flex-direction:column;gap:2px}.overview-bottom>div+div{padding-left:20px;border-left:1px solid #d2dfce}.overview-bottom strong{font-size:24px;color:#34543a;line-height:1.4;font-weight:550;letter-spacing:-.8px}.overview-bottom span{font-size:11px;color:#657a64}
.content-section{padding:42px 0 46px;border-top:1px solid var(--line)}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-heading h2{margin-top:9px}.section-number{font-size:11px;color:#778577;letter-spacing:1.3px}.section-description{color:var(--muted);font-size:13px;padding-bottom:4px;max-width:280px}.section-intro{color:var(--muted);font-size:15px;margin-top:-10px;margin-bottom:24px;max-width:760px}.improvement-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.improvement-card{background:white;border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.priority{font-size:11px;font-weight:650;padding:3px 8px;border-radius:4px;line-height:1.6}.priority-core{background:var(--mint);color:var(--green)}.priority-extra{background:#f8f1e2;color:#846224}.item-number{font-size:13px;color:#a0aea3}.old-behavior{color:var(--muted);font-size:14px;line-height:1.85;margin-top:14px;padding-bottom:17px;border-bottom:1px solid #edf1ed}.old-behavior>span{font-size:11px;display:block;color:#8a968d;margin-bottom:4px}.change-list{list-style:none;padding:18px 0 22px;display:grid;gap:9px;font-size:15px;line-height:1.8}.change-list li{position:relative;padding-left:15px}.change-list li:before{content:"";width:4px;height:4px;border-radius:50%;background:#8aab91;position:absolute;top:11px;left:0}.change-list strong{color:#2a4835}.card-link{font-size:12px;font-weight:600;color:var(--green);margin-top:auto;width:fit-content}.card-link:hover{text-decoration:underline;text-underline-offset:4px}.section-footnote{color:#728076;font-size:12px;line-height:1.9;margin-top:16px}
.sync-badge{font-size:12px;color:var(--green);display:flex;align-items:center;gap:7px;background:#e8efe6;border:1px solid #d8e4d7;border-radius:20px;padding:5px 12px;white-space:nowrap}.simulator-frame{background:white;border:1px solid #d4dfd4;border-radius:20px;overflow:hidden;box-shadow:0 8px 30px #173e1d04}.scenario-toolbar{background:#edf3eb;padding:22px 26px;border-bottom:1px solid #dce6d9;display:flex;align-items:center;gap:22px}.scenario-toolbar>label{font-size:13px;font-weight:650;color:#476148;white-space:nowrap}.scenario-controls{display:flex;align-items:center;gap:10px;flex:1}.scenario-controls>select{flex:1;min-width:0;max-width:450px}.scenario-controls>.button{min-height:42px;padding:9px 16px;font-size:13px}select{background:white;border:1px solid #cbd9cc;border-radius:7px;padding:9px 30px 9px 12px;color:var(--ink);font-size:14px;min-height:42px;max-width:100%}.shared-controls{padding:23px 26px 18px;border-bottom:1px solid #edf1ed}.control-caption{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:11px;margin-bottom:12px}.control-caption>strong{font-size:12px;color:#4c5e50}.action-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.action-button{background:#fff;border:1px solid #dce5dc;border-radius:9px;min-height:72px;display:flex;align-items:center;justify-content:center;gap:9px;padding:10px 5px;text-align:left;font-size:13px;line-height:1.5}.action-button:hover{background:var(--paper);border-color:#9ab79f}.action-button:active{background:var(--mint)}.action-button small{font-size:10px;line-height:1.7;display:block;color:#79867c;font-weight:400}.action-icon{font-size:24px;color:#41694d;line-height:1;width:22px;text-align:center}.click-dots{font-size:16px;letter-spacing:1px}.gesture-details{margin-top:14px;color:var(--muted);font-size:12px}.gesture-details>summary{cursor:pointer;min-height:32px;align-content:center}.gesture-row{display:flex;align-items:center;gap:22px;margin-top:14px;background:var(--paper);padding:14px;border-radius:10px}.gesture-row p{font-size:12px;line-height:1.9}.gesture-row button{background:white;border:1px solid #d2ded1;border-radius:10px;width:140px;flex-shrink:0;padding:14px 8px 10px;display:flex;flex-direction:column;align-items:center;font-size:12px;touch-action:none;user-select:none;-webkit-user-select:none}.gesture-row button.is-pressed{background:#e7f0e5;border-color:var(--green)}.cap-illustration{width:75px;height:31px;border:1.5px solid #7c9380;border-radius:35px 35px 5px 5px;background:linear-gradient(100deg,#f7faf4,#e6eee4);margin-bottom:10px;position:relative}.cap-illustration:after{content:"";position:absolute;bottom:-6px;left:-3px;width:79px;height:1px;background:#7c9380}.device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding:24px 26px 20px}.device-card{border:1px solid #dfe4e0;border-radius:14px;min-width:0;overflow:hidden;background:#fafbfa}.device-card[data-variant="new"]{border-color:#bdd0b9;background:#f5f9f2}.device-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 17px;border-bottom:1px solid #e6ebe4;font-size:13px;color:#617064;font-weight:600}.device-card[data-variant="new"] .device-heading{color:#35613e;border-color:#dce7d8}.device-heading small{font-size:10px;font-weight:450;color:#8a968c}.device-picture{display:flex;justify-content:center;padding-top:14px}.device-picture svg{width:100px;height:133px}.device-status{text-align:center;padding:6px 12px 16px}.power-label{font-size:19px;color:#4a5b50;font-weight:650;line-height:1.4}.device-card[data-variant="new"] .power-label{color:#2e5a36}.state-caption{font-size:11px;color:#819084;margin-top:5px;min-height:20px}.device-facts{padding:0 17px 17px;display:grid;gap:10px}.fact-row{display:flex;align-items:baseline;justify-content:space-between;gap:8px;font-size:12px;color:#7b877d}.fact-row strong{color:#435348;font-size:13px;font-weight:550;text-align:right;font-variant-numeric:tabular-nums}.device-card[data-variant="new"] .fact-row strong{color:#31583a}.volume-track{height:4px;border-radius:3px;background:#e2e8e1;overflow:hidden;margin-top:-4px}.volume-track>span{display:block;height:100%;background:#91a496;border-radius:3px;transition:width .15s}.device-card[data-variant="new"] .volume-track>span{background:#67936b}.led-status{display:inline-flex;align-items:center;gap:5px}.led-swatch{width:6px;height:6px;border-radius:50%;background:var(--led-color,#c8d0c9);flex-shrink:0}.difference{margin:0 26px 20px;padding:16px 18px;border-radius:10px;border:1px solid #d6e3d2;background:#edf4e9;display:flex;align-items:flex-start;gap:12px}.difference-marker{font-size:22px;line-height:1.3;color:#59815c}.difference strong{color:#345b3c;font-size:14px;font-weight:650}.difference p{font-size:12px;color:#638068;line-height:1.85;margin-top:3px}.difference[data-kind="neutral"]{background:#f4f6f3;border-color:#e2e8e0}.difference[data-kind="neutral"] strong{color:#526556}.simulation-options{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:17px 26px;border-top:1px solid #e6ece4;font-size:11px;color:var(--muted)}.time-options,.sound-options{display:flex;align-items:center;gap:8px}.simulation-options select{font-size:11px;min-height:38px;padding:5px 22px 5px 8px;border-color:#dce4da}.text-button{border:0;background:none;color:var(--green);font-size:13px;font-weight:550;padding:8px 0;min-height:40px;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap}.text-button:hover{text-decoration:underline;text-underline-offset:4px}.simulation-options .text-button{font-size:11px}.reset-button{margin-left:auto}.event-log{border-top:1px solid #e7ece5;padding:0 26px;font-size:12px}.event-log>summary{padding:14px 0;color:#697c6d;cursor:pointer}.event-log>summary span{margin-left:8px;color:#91a094;font-size:10px}.event-log ol{padding:0 0 16px 20px;color:#6f7e72;max-height:260px;overflow:auto;font-size:11px;line-height:1.8}.event-log li{padding:7px 0 7px 4px;border-bottom:1px solid #f0f3ee}.event-log li>strong{color:#435b49;font-size:12px}.event-log li>span{display:block;margin-top:3px}
.spec-list{display:grid;gap:10px}.spec-item{border:1px solid var(--line);border-radius:12px;background:white;overflow:hidden;scroll-margin-top:calc(var(--header) + 20px)}.spec-item>summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 22px;min-height:74px}.spec-item>summary::-webkit-details-marker{display:none}.spec-item>summary:after{content:"＋";color:#7c9380;font-size:19px;flex-shrink:0}.spec-item[open]>summary:after{content:"−"}.spec-item>summary strong{font-size:16px;color:#344d3b}.spec-item>summary span{font-size:12px;color:#7b887c;display:block;margin-top:3px}.spec-item[open]>summary{border-bottom:1px solid #ebf0e9}.spec-body{padding:20px 22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.spec-body dt{font-size:11px;color:#849082;margin-bottom:6px}.spec-body dd{font-size:15px;line-height:1.9;color:#4b6050;margin:0}.spec-note{font-size:12px;line-height:1.8;color:#7d8a7c;padding:0 22px 20px}.factory-footer{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:24px}.factory-footer p{font-size:12px;color:#7a887b}.factory-footer .button{font-size:12px;min-height:40px;padding:9px 14px}.evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.evidence-card{background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden;min-width:0}.image-open{position:relative;display:block;width:100%;background:#fff;border:0;padding:16px;cursor:zoom-in}.image-open img{width:100%;height:190px;object-fit:contain;display:block}.zoom-label{position:absolute;bottom:10px;right:12px;display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;border:1px solid #dbe4d9;background:#ffffffea;color:#5a795f;font-size:13px}.evidence-card figcaption{padding:17px 20px 20px;border-top:1px solid #edf1eb}.evidence-card figcaption strong{font-size:14px;color:#425b48}.evidence-card figcaption p{font-size:12px;color:#7a877b;line-height:1.9;margin-top:7px}.site-footer{max-width:1120px;padding:26px 32px 40px;margin:auto;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;color:#879387;font-size:11px}.site-footer>div{display:flex;align-items:center;gap:15px}.site-footer strong{font-size:19px;color:#648168;letter-spacing:-1px}.site-footer>a{color:#5c795f}.toast{position:fixed;bottom:calc(24px + env(safe-area-inset-bottom));left:50%;transform:translate(-50%,12px);padding:11px 20px;border-radius:9px;color:white;background:#254e35;box-shadow:0 4px 20px #1c3c2522;font-size:13px;pointer-events:none;opacity:0;transition:opacity .18s,transform .18s;z-index:60;max-width:calc(100% - 32px);text-align:center}.toast.is-visible{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid #d7e1d4;border-radius:15px;max-width:calc(100vw - 28px);padding:16px 20px 20px;box-shadow:0 20px 80px #0e211a55;color:var(--text)}dialog::backdrop{background:#15221be0;backdrop-filter:blur(4px)}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:12px;font-size:13px}.dialog-toolbar h2{font-size:20px}.icon-button{border:0;border-radius:6px;background:#edf3e9;font-size:25px;line-height:1;width:40px;height:40px;flex-shrink:0;color:#4c6a50}.image-dialog{max-height:94dvh}.image-dialog>img{display:block;max-width:100%;max-height:calc(94dvh - 136px);object-fit:contain;margin:auto}.image-dialog>.text-link{font-size:12px;margin-top:12px;display:inline-block}.copy-dialog{width:680px}.copy-dialog>p{font-size:13px;color:var(--muted);margin-bottom:12px}.copy-dialog textarea{width:100%;height:min(55dvh,500px);font-family:inherit;font-size:14px;line-height:1.9;border:1px solid #d7e0d4;border-radius:8px;padding:14px;resize:vertical;background:var(--paper);color:var(--text)}
@media(max-width:900px){.hero{gap:32px}.overview-card{padding:24px}.overview-question{font-size:25px}.hero-actions{gap:16px}.hero-actions .button{padding:11px 16px}.action-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.action-button{justify-content:flex-start;padding:12px 17px;gap:14px;min-height:65px}.section-heading{gap:16px}.section-description{max-width:190px}.scenario-toolbar{padding:20px}.simulation-options{gap:12px}.evidence-grid{gap:12px}.evidence-card figcaption{padding:14px 16px}.image-open img{height:165px}}
@media(max-width:640px){:root{--header:105px}.header-inner,.nav-inner{padding:0 20px}.header-inner{height:59px}.brand-name{font-size:12px;padding-left:10px}.brand{gap:10px}.brand-mark{font-size:23px}.button-small{font-size:11px;min-height:36px;padding:7px 9px}.nav-inner{height:45px;gap:25px}.nav-inner>a{font-size:13px}.page-shell{padding:0 20px}.hero{display:block;padding:37px 0 32px}.hero h1{margin-top:17px;font-size:36px;letter-spacing:-1px;line-height:1.4}.eyebrow{font-size:11px}.hero-description{font-size:15px;line-height:1.9;margin-top:18px}.hero-actions{gap:20px;margin-top:25px;flex-wrap:wrap}.hero-actions .button{font-size:13px;min-height:46px;padding:12px 16px}.hero-actions .text-link{font-size:12px}.version-line{font-size:10px;margin-top:17px}.overview-card{margin-top:28px;padding:20px;border-radius:14px}.overview-question{font-size:23px;margin-top:14px;line-height:1.55}.overview-question br{display:none}.overview-explanation{font-size:13px;line-height:1.9;margin-top:10px}.overview-bottom{padding-top:14px;margin-top:18px}.overview-bottom strong{font-size:22px}.overview-bottom span{font-size:10px}.overview-bottom>div+div{padding-left:17px}.content-section{padding:30px 0 34px}.section-heading{align-items:flex-start;margin-bottom:19px;gap:14px}.section-heading h2{font-size:24px;letter-spacing:-.6px;margin-top:7px}.section-number{font-size:10px}.section-description{display:none}.improvement-grid{grid-template-columns:1fr;gap:14px}.improvement-card{padding:22px;border-radius:14px}.card-top{margin-bottom:12px}h3{font-size:20px}.priority{font-size:10px}.old-behavior{font-size:14px;line-height:1.9;margin-top:12px;padding-bottom:15px}.change-list{font-size:16px;line-height:1.85;gap:10px;padding:16px 0 20px}.change-list li:before{top:12px}.card-link{font-size:12px;min-height:30px;align-content:center}.section-footnote{font-size:11px;margin-top:14px;line-height:1.9}.sync-badge{font-size:10px;gap:5px;padding:4px 8px;margin-top:27px}.sync-badge .live-dot{width:5px;height:5px}.simulator-section .section-heading h2{font-size:23px}.section-intro{font-size:14px;line-height:1.9;margin-top:-4px;margin-bottom:19px}.simulator-frame{border-radius:15px}.scenario-toolbar{display:block;padding:17px 15px}.scenario-toolbar>label{font-size:11px;display:block;margin-bottom:9px}.scenario-controls{gap:7px}.scenario-controls>select{font-size:12px;padding-left:9px;padding-right:24px;min-height:42px;width:100%}.scenario-controls>.button{padding:10px 12px;font-size:12px}.shared-controls{padding:17px 15px 13px}.control-caption{font-size:10px;gap:10px}.control-caption>strong{font-size:11px}.action-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.action-button{padding:11px 12px;gap:12px;min-height:61px;font-size:13px}.action-button small{font-size:10px;margin-top:2px}.action-icon{font-size:22px;width:20px}.click-dots{font-size:14px}.gesture-details{font-size:11px;line-height:1.8;margin-top:10px}.gesture-details>summary{padding:7px 0}.gesture-row{gap:12px;padding:12px}.gesture-row button{width:108px;font-size:11px;min-height:86px}.gesture-row p{font-size:10px}.cap-illustration{width:64px;height:28px}.cap-illustration:after{width:68px}.device-grid{gap:10px;padding:18px 12px 14px}.device-heading{padding:11px 12px;font-size:12px;display:block;line-height:1.5}.device-heading small{display:block;font-size:9px;margin-top:3px}.device-picture{padding-top:12px}.device-picture svg{width:77px;height:104px}.device-status{padding:6px 8px 13px}.power-label{font-size:16px}.state-caption{font-size:10px;margin-top:5px;line-height:1.65;min-height:17px}.device-facts{padding:0 12px 14px;gap:10px}.fact-row{font-size:10px;gap:6px}.fact-row strong{font-size:11px}.timer-fact strong{max-width:76px;line-height:1.5}.volume-track{height:3px}.difference{margin:0 12px 16px;padding:13px 12px;gap:9px;border-radius:8px}.difference-marker{font-size:18px}.difference strong{font-size:13px;line-height:1.65;display:block}.difference p{font-size:11px;line-height:1.9;margin-top:4px}.simulation-options{padding:14px 15px;gap:10px 16px;font-size:10px}.simulation-options select{font-size:10px;min-height:38px;padding:5px 18px 5px 7px}.time-options,.sound-options{gap:6px}.simulation-options .text-button{font-size:10px}.reset-button{margin-left:auto}.event-log{padding:0 15px;font-size:11px}.event-log>summary{padding:12px 0}.spec-item>summary{padding:16px 18px;gap:12px;min-height:76px}.spec-item>summary strong{font-size:16px}.spec-item>summary span{font-size:12px;line-height:1.7;margin-top:5px}.spec-body{padding:16px 18px;grid-template-columns:1fr;gap:16px}.spec-body dd{font-size:16px;line-height:1.85}.spec-note{font-size:12px;line-height:1.9;padding:0 18px 18px}.factory-footer{display:block;margin-top:20px}.factory-footer p{font-size:11px}.factory-footer .button{margin-top:13px;min-height:44px;font-size:12px}.section-heading>.text-button{margin-top:24px;font-size:11px;min-height:36px}.evidence-grid{grid-template-columns:1fr;gap:14px}.evidence-card{display:grid;grid-template-columns:112px 1fr;align-items:center;border-radius:12px}.image-open{padding:12px}.image-open img{height:110px}.zoom-label{width:20px;height:20px;font-size:11px;right:8px;bottom:8px}.evidence-card figcaption{padding:16px 16px 16px 5px;border-top:0}.evidence-card figcaption strong{font-size:14px}.evidence-card figcaption p{font-size:12px;margin-top:7px;line-height:1.85}.site-footer{padding:22px 20px 32px;font-size:10px}.site-footer>div{gap:10px}.site-footer strong{font-size:17px}.dialog-toolbar{font-size:11px;gap:10px}.image-dialog{padding:12px 12px 16px}.icon-button{width:36px;height:36px;font-size:23px}.copy-dialog{padding:16px}}
@media(max-width:360px){.page-shell,.header-inner,.nav-inner{padding-left:16px;padding-right:16px}.brand-name{display:none}.hero h1{font-size:33px}.hero-actions{gap:14px}.hero-actions .button{padding:11px 13px}.hero-actions .text-link{font-size:11px}.improvement-card{padding:19px}.overview-card{padding:18px}.overview-question{font-size:21px}.section-heading h2{font-size:22px}.simulator-section .section-heading{display:block}.sync-badge{width:fit-content;margin-top:10px}.simulator-section .section-heading h2{font-size:22px}.scenario-toolbar,.shared-controls{padding-left:12px;padding-right:12px}.scenario-controls>.button{padding:10px 9px;font-size:11px}.scenario-controls>select{font-size:11px}.action-button{padding:10px 9px;gap:9px}.action-button small{font-size:9px}.device-grid{padding-left:9px;padding-right:9px;gap:8px}.device-heading{padding:11px 9px;font-size:11px}.device-facts{padding-left:9px;padding-right:9px}.fact-row{font-size:9px}.fact-row strong{font-size:10px}.power-label{font-size:15px}.state-caption{font-size:9px}.difference{margin-left:9px;margin-right:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{.site-header,.hero-actions,.simulator-section,.card-link,.factory-footer button,.section-heading button{display:none!important}body{background:white}.page-shell{padding:0}.hero{padding:20px 0;gap:25px}h1{font-size:30px}h2{font-size:22px}.content-section{padding:25px 0}.improvement-card,.spec-item,.evidence-card{break-inside:avoid}}
@media(max-width:640px){.overview-question{text-wrap:balance}.action-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.action-button{justify-content:center;padding:9px 4px;min-height:56px;text-align:center;font-size:12px}.action-icon{display:none}.action-button small{font-size:9px}.device-card{position:relative}.device-picture{position:absolute;right:9px;top:50px;padding:0;opacity:.65}.device-picture svg{width:33px;height:45px}.device-status{text-align:left;padding:14px 11px 14px}.power-label{font-size:15px;padding-right:24px}.state-caption{font-size:9px;max-width:calc(100% - 20px);min-height:17px}.device-heading{padding-left:11px;padding-right:11px}.device-facts{gap:9px}.device-grid{padding-top:15px}.simulator-section .section-heading h2{font-size:22px}}
@media(max-width:360px){.device-picture{display:none}.device-status{padding-left:9px}.power-label{font-size:14px;padding-right:0}.state-caption{max-width:100%;font-size:9px}.action-button{font-size:11px}.action-button small{font-size:8px}.simulator-section .section-heading{display:block}}
/* v2.1: readable state values and explicit control semantics. */
.operation-rules{margin-top:24px;padding:22px 24px;border:1px solid var(--line);border-radius:14px;background:#edf3eb}
.operation-rules h3{font-size:17px;margin-bottom:14px}.operation-rules dl{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}.operation-rules dl>div{display:flex;gap:14px;font-size:14px;line-height:1.85}.operation-rules dt{font-weight:650;color:var(--green);flex-shrink:0}.operation-rules dd{margin:0}.operation-rules>p{font-size:13px;color:#5b715f;line-height:1.9;border-top:1px solid #d8e3d5;margin-top:16px;padding-top:13px}
.fact-row{font-size:13px;align-items:flex-start}.fact-row>span{flex-shrink:0}.fact-row strong{font-size:15px;min-width:0}.output-fact strong{font-weight:650}.volume-track{height:5px}.timer-fact strong{white-space:pre-line;max-width:none;line-height:1.65}.led-status>span{min-width:0;overflow-wrap:anywhere}.difference p{white-space:pre-line;font-size:14px;line-height:1.9}.difference strong{font-size:15px}
@media(max-width:640px){.operation-rules{padding:19px;margin-top:20px}.operation-rules h3{font-size:17px}.operation-rules dl{grid-template-columns:1fr;gap:11px}.operation-rules dl>div{font-size:14px;gap:16px}.operation-rules>p{font-size:13px}.device-picture{display:none}.device-heading{font-size:14px;padding:12px}.device-heading small{font-size:11px;color:#718173}.device-status{text-align:left;min-height:99px;padding:14px 12px 8px}.power-label{font-size:17px;padding-right:0;text-wrap:balance;line-height:1.5}.state-caption{font-size:12px;max-width:100%;min-height:38px;color:#687c6b;line-height:1.6}.device-facts{padding:0 12px 16px;gap:11px}.fact-row{font-size:12px;gap:6px;color:#617466;line-height:1.7;min-height:22px}.fact-row strong{font-size:14px;line-height:1.7;color:#354d3c}.device-grid{gap:10px;padding-left:12px;padding-right:12px}.led-status{gap:4px}.volume-track{height:5px}.difference strong{font-size:15px}.difference p{font-size:14px;line-height:1.9}.difference{padding:15px 13px}.difference-marker{font-size:20px}.control-caption,.control-caption>strong{font-size:12px}.action-button{font-size:13px;min-height:63px}.action-button small{font-size:11px}.gesture-details{font-size:13px}.gesture-row p,.gesture-row button{font-size:12px}.simulation-options{font-size:12px}.simulation-options select{font-size:12px;min-height:44px}.simulation-options .text-button{font-size:12px;min-height:44px}.time-options{flex-wrap:wrap}.event-log{font-size:13px}.event-log>summary span{font-size:12px}.event-log ol,.event-log li>strong{font-size:13px}.event-log ol{line-height:1.9}.section-footnote{font-size:12px}}
@media(max-width:360px){.device-grid{padding-left:9px;padding-right:9px;gap:8px}.device-heading{padding:12px 9px;font-size:13px}.device-status{padding-left:9px;padding-right:9px;min-height:98px}.power-label{font-size:16px}.state-caption{font-size:12px}.device-facts{padding-left:9px;padding-right:9px}.fact-row{font-size:12px}.fact-row strong{font-size:13px}.action-button{font-size:12px}.action-button small{font-size:10px}}