:root{--sky:#eaf4fb;--paper:#f6f8ef;--white:#fff;--ink:#17312a;--muted:#56665c;--blue:#2f6a93;--green:#2e6b3a;--line:#c7d5d3;--serif:'Gowun Batang',serif;--sans:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--sky);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;word-break:keep-all;overflow-wrap:anywhere}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:var(--serif);font-weight:700;text-wrap:balance;letter-spacing:-.035em;line-height:1.25}h1{font-size:72px}h2{font-size:46px}h3{font-size:24px;line-height:1.4;letter-spacing:-.025em;text-wrap:balance}p+p{margin-top:16px}a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:5px}a,button{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px;border-radius:4px}img{max-width:100%;height:auto;display:block}[hidden]{display:none!important}.wrap{max-width:1200px;width:calc(100% - 80px);margin-inline:auto}.skip{position:absolute;z-index:10;left:20px;top:10px;padding:10px 18px;background:white;transform:translateY(-180%)}.skip:focus{transform:none}.site-header{min-height:100px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none;flex-shrink:0}.brand img{border-radius:11px;width:44px;height:44px}.brand span{font-weight:700;font-size:17px;line-height:1.4;letter-spacing:-.025em}.brand em{display:block;font-family:'Instrument Serif',serif;font-weight:400;font-size:19px;letter-spacing:0}.site-header nav{display:flex;align-items:center;gap:26px}.site-header nav>a:not(.button){font-size:14px;text-decoration:none;min-height:44px;display:flex;align-items:center;color:var(--ink)}.site-header nav>a[aria-current]{text-decoration:underline;text-underline-offset:7px}.button{display:inline-flex;min-height:52px;gap:25px;align-items:center;justify-content:center;background:var(--blue);color:white;border:1px solid var(--blue);border-radius:99px;padding:12px 24px;text-decoration:none;font-size:15px;font-weight:600;line-height:1.45;transition:background .14s}.button:hover{background:#235574}.header-cta{min-height:44px;font-size:13px;padding:10px 19px;gap:16px}.text-link{display:inline-flex;align-items:center;gap:16px;min-height:44px;font-weight:600;font-size:15px;text-decoration:none;border-bottom:1px solid currentColor}.eyebrow{font-size:12px;letter-spacing:.045em;font-weight:600;line-height:1.5}.eyebrow>span{margin-right:16px;font-variant-numeric:tabular-nums}.caption,figcaption{font-size:12px;color:var(--muted);line-height:1.65}.caption{margin-top:20px}figcaption{margin-top:10px}.lead{font-size:20px;line-height:1.7;letter-spacing:-.025em}.hero{display:grid;grid-template-columns:1.3fr 1fr;column-gap:54px;margin-bottom:100px}.observation{grid-area:1 / 1 / 2 / 3;position:relative;aspect-ratio:2.8/1;overflow:hidden;border-radius:3px;background:#a9c6d8}.observation-photo{width:100%;height:100%;object-fit:cover;object-position:50% 48%}.static-bubbles{position:absolute;inset:0;pointer-events:none}.static-bubbles img{position:absolute;width:170px;top:32%;left:28%}.static-bubbles img:nth-child(2){width:95px;top:18%;left:49%}.static-bubbles img:nth-child(3){width:66px;top:46%;left:59%}.static-bubbles img:nth-child(4){width:112px;top:57%;left:39%}#bubble-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.blow-button{position:absolute;bottom:28px;right:34px;width:76px;height:76px;border:1px solid #fff8;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;touch-action:none;user-select:none;transition:box-shadow .14s,background .14s}.blow-button svg{width:32px;height:32px}.blow-button[aria-pressed=true]{box-shadow:0 0 0 5px #fff8;background:#245b81}.blow-button:focus-visible{outline-color:white}.observation-controls{grid-area:2 / 1 / 3 / 3;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:8px 0 26px;color:var(--muted);font-size:12px}.observation-controls>p{display:flex;align-items:center;gap:10px}.tiny-ring{display:inline-block;flex-shrink:0;width:17px;height:17px;border:1px solid #7c8895;border-radius:50%;box-shadow:inset 1px 0 #f2b6d6,inset -1px 0 #7cd9af}.demo-controls{display:flex;align-items:center;gap:20px}.quiet-button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;gap:16px;color:var(--blue);padding:6px 16px;background:transparent;border:1px solid #b0c4d0;border-radius:30px;font-size:12px;font-weight:600}.quiet-button:hover{background:#fff9}.hero-copy{grid-area:3 / 1 / 4 / 2}.hero-copy>.eyebrow{margin-bottom:17px}.hero-actions{display:flex;gap:26px;align-items:center;margin-top:24px}.price-note{font-size:12px;color:var(--muted);margin-top:14px}.price-note span{display:inline-block}.hero-aside{grid-area:3 / 2 / 4 / 3;padding-top:34px}.hero-aside>p:nth-child(2){font-size:14px;color:var(--muted);margin-top:14px}.hero-ui{margin-top:24px;max-width:400px}.hero-ui img{width:100%;border-radius:5px}.hero-ui figcaption{font-size:11px;margin-top:5px}.demo-note{grid-area:4 / 1 / 5 / 3;font-size:11px;color:var(--muted);margin-top:20px}.section-heading{margin-bottom:45px}.section-heading>.eyebrow{margin-bottom:16px}.section-intro{margin-top:22px;max-width:560px;color:var(--muted)}section:not(.hero,.section-band,.guide-cover,.guide-section,.guide-modes,.device-guide,.guide-trouble,.final-cta){margin-bottom:100px}.section-band{padding:90px 0;margin-bottom:100px;background:var(--paper)}.postcards{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.1fr;gap:28px;align-items:start}.postcard{position:relative}.postcard:nth-child(2){margin-top:68px}.postcard:nth-child(3){margin-top:22px}.postcard:nth-child(4){margin-top:110px}.postcard img{width:100%;height:240px;object-fit:cover;object-position:50% 45%;border:8px solid #fff}.postcard:nth-child(2) img{height:190px}.postcard:nth-child(3) img{height:270px}.postcard:nth-child(4) img{height:180px}.postcard h3{font-size:19px;margin-top:18px}.postcard p{font-size:14px;color:var(--muted);margin-top:8px}.specimen-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.specimen{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px;min-height:320px;display:flex;flex-direction:column}.specimen.giant{grid-row:span 2}.spec-number{font-size:11px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}.specimen-visual{position:relative;height:138px;width:100%}.specimen.giant .specimen-visual{flex:1;min-height:350px}.specimen-visual img{max-width:none;height:auto;position:absolute;transform:translate(-50%,-50%)}.spec-label{margin-top:auto}.spec-label h3{font-size:18px}.spec-label p{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.65;min-height:43px}.spec-label small{font-size:11px;color:var(--green);display:block;margin-top:17px}.space-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 32px}.space img{width:100%;aspect-ratio:2.25/1;object-fit:cover;object-position:50% 45%}.space figcaption{display:grid;grid-template-columns:24px 1fr 40px;gap:0 14px;align-items:center;margin-top:15px}.space-num{font-size:11px;font-variant-numeric:tabular-nums}.space h3{font-size:23px;color:var(--ink)}.wind{font-size:32px;line-height:1;color:var(--blue);justify-self:end}.space figcaption p{grid-column:2/4;font-size:12px;margin-top:4px}.space-how{display:grid;grid-template-columns:1fr 340px;gap:90px;align-items:center;max-width:850px;margin:70px auto 0;padding:40px 0 0;border-top:1px solid var(--line)}.space-how h3{font-family:var(--serif);font-size:32px;margin-top:16px}.space-how p:not(.eyebrow){font-size:15px;color:var(--muted);margin-top:22px}.space-how a{margin-top:22px}.space-how figure{max-width:240px;justify-self:center}.space-how img{border-radius:18px;border:1px solid var(--line)}.mode-row{display:grid;grid-template-columns:1fr 320px;gap:90px;align-items:center;border-top:1px solid var(--line);padding:42px 70px;min-height:390px}.mode-row:nth-child(even){grid-template-columns:320px 1fr}.mode-row:nth-child(even) .mode-copy{order:2}.mode-row h3{font-family:var(--serif);font-size:34px;margin-top:14px}.mode-copy>p:not(.eyebrow){margin-top:22px;max-width:470px}.mode-copy .ui-flow{font-size:13px;color:var(--green);background:#fff8;display:table;padding:8px 13px}.mode-copy .text-link{margin-top:12px}.mode-row figure{max-width:188px;justify-self:center}.mode-row img{max-height:400px;object-fit:contain;border-radius:10px}.physics-note{border-top:1px solid var(--line);margin-top:40px;padding-top:36px;max-width:740px}.physics-note h3{margin-top:14px;font-size:25px}.physics-note p:not(.eyebrow){margin-top:16px;color:var(--muted)}.physics-note a{margin-top:12px}.table-wrap{width:100%}.input-table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}.input-table caption{text-align:left;margin-bottom:16px;color:var(--muted);font-size:12px}.input-table th,.input-table td{padding:21px 12px;border-bottom:1px solid var(--line);vertical-align:middle}.input-table thead th{border-top:1px solid var(--ink);font-size:12px;font-weight:500;color:var(--muted)}.input-table tbody th{font-size:15px;font-weight:600}.input-table td{color:var(--muted)}.vision-wide{margin-top:45px}.vision-wide img{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:3px}.other-devices{display:grid;grid-template-columns:400px 1fr;gap:65px;align-items:center;margin-top:45px}.other-devices>figure{max-width:300px;justify-self:center}.other-devices>figure img{border:1px solid var(--line);border-radius:5px}.watch-shots{display:flex;gap:15px;max-width:500px}.watch-shots img{width:calc((100% - 30px)/3);border-radius:18px}.watch-panel h3{margin-top:26px}.watch-panel>p{font-size:14px;margin-top:14px}.watch-panel>.caption{font-size:12px;color:var(--muted)}.quick-steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0;margin:0 0 42px;gap:30px}.quick-steps li{border-top:1px solid var(--line);padding-top:20px}.step-number{font-size:13px;display:block;margin-bottom:26px;font-variant-numeric:tabular-nums;color:var(--blue)}.quick-steps h3{font-size:19px}.quick-steps p{margin-top:14px;color:var(--muted);font-size:14px}.privacy-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:70px}.sound-flow{display:flex;align-items:center;gap:18px;padding:22px 0;border-block:1px solid var(--line);font-size:14px;font-weight:600;margin-bottom:25px}.sound-flow span:nth-child(even){color:var(--blue)}.privacy-layout p{font-size:15px;color:var(--muted)}.privacy-layout a{margin-top:15px}.safety{border-left:1px solid var(--line);padding:4px 0 0 40px}.safety h3{font-size:21px;margin:16px 0}.safety p+p{margin-top:12px}.free-line{display:flex;align-items:center;gap:75px;border-top:1px solid var(--line);margin-top:65px;padding-top:35px}.free-line h2{font-size:72px}.free-line p{font-size:20px}.free-line span{font-size:12px;color:var(--muted);display:block;margin-top:9px}.faq-list{border-top:1px solid var(--line);margin-bottom:24px}details{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;gap:25px;align-items:center;justify-content:space-between;cursor:pointer;min-height:80px;padding:18px 0;font-weight:600;font-size:18px;line-height:1.55}summary::-webkit-details-marker{display:none}summary>span{font-size:26px;font-weight:400;flex-shrink:0;min-width:25px;text-align:center;color:var(--blue)}details[open] summary>span{transform:rotate(45deg)}details p{padding:0 50px 26px 0;color:var(--muted);max-width:850px}details[open]{background:#ffffff55}.final-cta{display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:center;margin-bottom:110px}.final-cta>div:first-child img{width:100%;aspect-ratio:1.2;object-fit:cover}.final-cta h2{margin:20px 0 30px;font-size:44px}.final-cta .text-link{margin-left:22px}.final-cta .caption{max-width:400px}.site-footer{background:var(--ink);color:#f6f8ef;padding:48px 0 24px}.footer-top{display:grid;grid-template-columns:1fr 1fr;gap:18px 50px;align-items:start}.footer-top>p{grid-column:1;font-size:13px;color:#c9d7d0}.footer-links{grid-column:2;grid-row:1/3;display:flex;gap:25px;justify-content:flex-end;flex-wrap:wrap}.site-footer a:not(.brand){color:#eaf4fb;font-size:12px;min-height:44px;display:inline-flex;align-items:center;text-decoration:none}.footer-bottom{display:flex;justify-content:space-between;gap:35px;border-top:1px solid #63786b;margin-top:34px;padding-top:18px;font-size:11px;color:#c9d7d0}.family{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.family>span{font-size:11px}.guide-cover{padding:52px 0 55px;border-bottom:1px solid var(--line);margin-bottom:55px}.guide-cover h1{margin-top:18px;font-size:64px}.guide-cover>.lead{margin-top:22px}.guide-toc{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 22px;margin-top:35px;max-width:850px}.guide-toc a{display:flex;align-items:center;min-height:44px;font-size:13px;text-decoration:none;border-bottom:1px solid #b9cbd5}.guide-section{display:grid;grid-template-columns:1fr 440px;gap:80px;align-items:center;padding:50px 0 65px;border-bottom:1px solid var(--line);margin-bottom:30px;scroll-margin-top:30px}.guide-copy h2{font-size:40px;margin:15px 0 24px}.guide-copy p,.guide-copy li,.guide-copy dd{font-size:15px}.guide-copy ol,.guide-copy ul,.guide-mode ol{padding-left:23px;margin:22px 0}.guide-copy li+li,.guide-mode li+li{margin-top:13px}.guide-copy strong,.guide-mode strong{font-weight:600}.guide-visual>img{max-width:280px;margin-inline:auto;border-radius:16px;border:1px solid var(--line)}.guide-visual>figcaption{max-width:400px;margin:15px auto 0}.ui-recreation{background:#fff;border:1px solid #ccd6d9;border-radius:22px;padding:26px 25px;max-width:440px;color:#17201c}.recreation-label{font-size:11px!important;color:var(--muted);margin-bottom:22px}.ui-recreation h3{font-size:30px;font-weight:700;margin-bottom:18px}.ui-recreation>p:not(.recreation-label){font-size:13px;line-height:1.7;color:var(--muted)}.ui-item{display:flex;gap:17px;align-items:flex-start;margin-top:28px}.ui-item strong,.ui-option strong{font-size:17px;font-weight:700;letter-spacing:-.02em}.ui-item p{font-size:13px;line-height:1.6;margin-top:6px;color:var(--muted)}.ui-symbol{font-size:24px;line-height:1.2;min-width:28px;color:#007aff}.ui-button{background:#007aff;color:white;font-weight:700;text-align:center;border-radius:13px;padding:12px;margin-top:30px;font-size:16px}.tip{padding:18px 22px;border-left:2px solid var(--blue);background:#fff9;font-size:13px;line-height:1.75;margin-top:25px;color:var(--muted)}.screen-legend{margin:0}.screen-legend>div{margin-bottom:22px}.screen-legend dt{font-weight:600;font-size:15px}.screen-legend dd{margin:4px 0 0;color:var(--muted)}.annotated{position:relative}.annotated>img{width:100%;border-radius:9px}.mark{position:absolute;width:25px;height:25px;display:grid;place-items:center;font-weight:700;font-size:12px;line-height:1;color:var(--ink);background:#fff;border-radius:50%;border:1px solid #7f74be;box-shadow:1px 0 0 #7cd9af,-1px 0 0 #fcbe9e}.mark-space{left:61%;top:16%}.mark-settings{right:1%;top:16%}.mark-mode{left:3%;top:54%}.mark-style{left:2%;bottom:2%}.mark-waft{right:3%;bottom:2%}.mark-input{left:43%;bottom:12%}.ui-quote{font-size:12px;padding:16px;color:var(--muted);background:#fff;margin-top:16px;border-radius:4px}.ui-option{position:relative;background:#f4f4f4;border-radius:12px;padding:16px 35px 16px 15px;margin-top:16px}.ui-option p{font-size:12px;color:var(--muted);margin-top:5px;line-height:1.65}.ui-check{position:absolute;right:15px;top:20px;color:#007aff;font-weight:700}.ui-toggle{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:25px 0;font-size:14px}.ui-toggle>span{width:45px;height:27px;background:#34c759;border-radius:20px;flex-shrink:0;position:relative}.ui-toggle>span:after{content:'';position:absolute;width:23px;height:23px;top:2px;right:2px;border-radius:50%;background:#fff}.ui-heading{display:flex;justify-content:space-between;gap:20px;align-items:center}.ui-heading span{color:#007aff;font-size:15px}.ui-setting-row{margin-top:25px;padding:16px 0;border-bottom:1px solid #e1e6e3;font-weight:600;display:flex;justify-content:space-between}.guide-modes{padding:50px 0 60px;border-bottom:1px solid var(--line);margin-bottom:30px}.guide-mode{display:grid;grid-template-columns:300px 1fr;gap:90px;align-items:center;padding:40px 45px;border-top:1px solid var(--line)}.guide-mode figure{max-width:200px;justify-self:center}.guide-mode img{border-radius:12px}.guide-mode h3{font-family:var(--serif);font-size:32px;margin:14px 0 24px}.guide-mode p,.guide-mode li{font-size:15px}.guide-mode p{color:var(--muted)}.device-guide{padding:50px 0 60px;border-bottom:1px solid var(--line);margin-bottom:30px}.device-guide-row{display:grid;grid-template-columns:340px 1fr;gap:80px;align-items:center;margin-top:45px}.device-guide-row figure{max-width:300px}.device-guide-row:first-of-type figure{max-width:165px;justify-self:center}.device-guide-row:last-of-type figure{max-width:235px;justify-self:center}.device-guide-row figure img{border-radius:12px}.device-guide-row h3{margin-bottom:20px}.device-guide-row li,.device-guide-row p{font-size:15px}.device-guide-row p{color:var(--muted)}.guide-trouble{padding:65px 0 100px}.guide-trouble>.button{margin-top:24px}.guide-trouble>.text-link{margin-left:24px}.not-found{padding:100px 0 140px}.not-found h1{margin:25px 0}.not-found .button{margin-top:35px}.not-found .text-link{margin-left:25px}
@media(min-width:1500px){.hero{padding-top:10px}}
@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.site-header nav{gap:17px}.hero{column-gap:30px}h1{font-size:58px}h2{font-size:42px}.hero-actions{gap:15px}.hero-actions .button{font-size:13px;padding:12px 19px}.hero-aside .lead{font-size:17px}.postcards{gap:18px}.postcard img{height:205px}.postcard:nth-child(3) img{height:215px}.specimen{padding:18px;min-height:300px}.specimen.giant .specimen-visual{min-height:335px}.specimen-visual.giant img{width:155px!important}.mode-row{padding:35px 25px;gap:40px;grid-template-columns:1fr 230px}.mode-row:nth-child(even){grid-template-columns:230px 1fr}.mode-row h3{font-size:30px}.other-devices{grid-template-columns:300px 1fr;gap:30px}.privacy-layout{gap:35px}.sound-flow{gap:12px;font-size:12px}.safety{padding-left:25px}.guide-section{grid-template-columns:1fr 330px;gap:40px}.guide-copy h2{font-size:34px}.guide-mode{grid-template-columns:240px 1fr;gap:45px;padding:35px 15px}.device-guide-row{grid-template-columns:280px 1fr;gap:40px}.final-cta{gap:35px}.final-cta h2{font-size:37px}.final-cta .text-link{margin:12px 0 0}.footer-links{gap:17px}}
@media(max-width:760px){.site-header{min-height:88px}.site-header nav{gap:15px}.header-cta{display:none}.hero{grid-template-columns:1fr 1fr;column-gap:24px}.hero-copy{grid-area:1 / 1 / 2 / 3;margin-bottom:26px}.hero-copy h1{font-size:56px}.observation{grid-area:2 / 1 / 3 / 3;aspect-ratio:2/1}.observation-controls{grid-area:3 / 1 / 4 / 3;flex-wrap:wrap;gap:3px;padding-bottom:24px}.hero-aside{grid-area:4 / 1 / 5 / 3;display:grid;grid-template-columns:1fr 1fr;gap:10px 30px;padding-top:0}.hero-aside .lead{font-size:17px}.hero-aside>p:nth-child(2){grid-column:1;margin-top:6px}.hero-ui{grid-column:2;grid-row:1/3;margin-top:0;align-self:center}.demo-note{grid-area:5 / 1 / 6 / 3}.postcards{grid-template-columns:1fr 1fr;gap:25px}.postcard:nth-child(2){margin-top:35px}.postcard:nth-child(3){margin-top:0}.postcard:nth-child(4){margin-top:45px}.postcard img,.postcard:nth-child(3) img{height:230px}.postcard:nth-child(2) img,.postcard:nth-child(4) img{height:190px}.specimen-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.specimen.giant{grid-row:span 2}.specimen.giant .specimen-visual{min-height:340px}.space-how{gap:30px;grid-template-columns:1fr 230px}.mode-row,.mode-row:nth-child(even){grid-template-columns:1fr 185px;gap:30px;padding:32px 0}.mode-row:nth-child(even) .mode-copy{order:0}.mode-row h3{font-size:27px}.input-table{font-size:12px}.input-table th,.input-table td{padding:15px 6px}.input-table tbody th{font-size:12px}.other-devices{grid-template-columns:210px 1fr;gap:30px}.watch-shots{gap:8px}.watch-shots img{width:calc((100% - 16px)/3);border-radius:8px}.quick-steps{grid-template-columns:1fr 1fr;gap:30px}.privacy-layout{grid-template-columns:1fr}.safety{border-left:0;border-top:1px solid var(--line);padding:28px 0 0;max-width:500px}.sound-flow{font-size:14px;gap:20px}.free-line{gap:30px}.free-line h2{font-size:60px}.free-line p{font-size:17px}.final-cta{grid-template-columns:1fr 1fr;gap:28px}.final-cta h2{font-size:30px}.footer-top{grid-template-columns:1fr}.footer-links{grid-column:1;grid-row:auto;justify-content:flex-start}.footer-bottom{flex-direction:column;gap:12px}.guide-section{grid-template-columns:1fr;gap:30px}.guide-visual{width:100%;max-width:450px;margin-inline:auto}.guide-visual>img{max-width:260px}.guide-copy h2{font-size:37px}.guide-mode{grid-template-columns:180px 1fr;gap:35px}.guide-mode figure{max-width:180px}.guide-toc{grid-template-columns:repeat(4,1fr);gap:8px 15px}.guide-toc a{font-size:12px}.device-guide-row{grid-template-columns:230px 1fr;gap:30px}}
@media(max-width:540px){.wrap{width:calc(100% - 40px)}body{font-size:15px}.site-header{min-height:82px;gap:12px}.brand{gap:9px}.brand span{font-size:14px}.brand em{font-size:17px}.brand img{width:38px;height:38px;border-radius:9px}.site-header nav{gap:14px}.site-header nav>a:not(.button){font-size:12px}.hero{display:flex;flex-direction:column;margin-bottom:65px}.hero-copy{order:0;margin-bottom:26px}.hero-copy>.eyebrow{font-size:11px;margin:12px 0 16px}.hero-copy h1{font-size:40px;line-height:1.25;letter-spacing:-.03em}.hero-actions{flex-wrap:wrap;gap:10px 20px;margin-top:21px}.hero-actions .button{font-size:13px;padding:12px 18px;gap:12px;min-height:48px}.hero-actions .text-link{font-size:12px}.price-note{font-size:10px;margin-top:12px;line-height:1.75}.observation{order:1;aspect-ratio:4/3;width:100%}.observation-photo{object-position:50% 49%}.static-bubbles img{width:120px;top:29%;left:14%}.static-bubbles img:nth-child(2){width:70px;top:12%;left:50%}.static-bubbles img:nth-child(3){width:48px;top:44%;left:63%}.static-bubbles img:nth-child(4){width:70px;top:57%;left:36%}.blow-button{width:62px;height:62px;right:20px;bottom:20px}.blow-button svg{width:28px;height:28px}.observation-controls{order:2;display:block;padding:10px 0 20px}.observation-controls>p{font-size:10px}.demo-controls{gap:10px;justify-content:space-between;margin-top:9px}.demo-controls>span{font-size:10px}.quiet-button{font-size:10px;padding:6px 10px;min-height:44px}.hero-aside{order:3;display:block}.hero-aside .lead{font-size:17px}.hero-aside>p:nth-child(2){font-size:13px;margin-top:12px}.hero-ui{margin-top:20px;max-width:none}.hero-ui figcaption{font-size:10px}.demo-note{order:4;font-size:10px;margin-top:16px}.section-heading{margin-bottom:30px}.section-heading>.eyebrow{font-size:11px;margin-bottom:15px}h2{font-size:33px;line-height:1.3}.section-intro{font-size:14px;margin-top:20px}section:not(.hero,.section-band,.guide-cover,.guide-section,.guide-modes,.device-guide,.guide-trouble,.final-cta){margin-bottom:65px}.section-band{padding:60px 0;margin-bottom:65px}.postcards{gap:26px 17px}.postcard img,.postcard:nth-child(3) img{height:185px;border-width:5px}.postcard:nth-child(2) img,.postcard:nth-child(4) img{height:150px}.postcard:nth-child(2){margin-top:38px}.postcard:nth-child(4){margin-top:38px}.postcard h3{font-size:17px;margin-top:12px}.postcard p{font-size:12px;margin-top:6px;line-height:1.7}.specimen{padding:16px 12px;min-height:286px}.specimen-visual{height:123px}.specimen.giant .specimen-visual{min-height:335px}.specimen-visual.giant img{width:143px!important}.specimen-visual.classic img,.specimen-visual.rainbow img{width:63px!important}.specimen-visual.twin img{scale:.86}.specimen-visual.foam img{scale:.86}.spec-label h3{font-size:16px}.spec-label p{font-size:12px;line-height:1.6;min-height:40px}.spec-label small{font-size:10px;margin-top:12px}.spec-number{font-size:10px}.caption,figcaption{font-size:11px}.space-grid{grid-template-columns:1fr;gap:28px}.space img{aspect-ratio:1.9/1}.space figcaption{margin-top:11px}.space h3{font-size:21px}.space figcaption p{font-size:12px}.space-how{grid-template-columns:1fr;gap:27px;margin-top:40px;padding-top:30px}.space-how h3{font-size:28px}.space-how p:not(.eyebrow){font-size:14px}.space-how figure{max-width:245px}.mode-row,.mode-row:nth-child(even){display:flex;flex-direction:column;align-items:stretch;gap:26px;padding:35px 0}.mode-row figure{order:0;max-width:215px;align-self:center}.mode-copy,.mode-row:nth-child(even) .mode-copy{order:1}.mode-row img{max-height:none;max-width:215px}.mode-row h3{font-size:29px;margin-top:12px}.mode-copy>p:not(.eyebrow){font-size:14px;margin-top:17px}.mode-copy .ui-flow{font-size:11px!important}.mode-row figcaption{font-size:10px}.physics-note{padding-top:28px;margin-top:30px}.physics-note h3{font-size:21px}.physics-note p:not(.eyebrow){font-size:14px}.physics-note .text-link{font-size:12px}.input-table,.input-table tbody{display:block;width:100%}.input-table thead{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.input-table caption{display:block}.input-table tr{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;border-top:1px solid var(--line);padding:20px 0}.input-table th,.input-table td{display:block;padding:0;border:0}.input-table tbody th{grid-column:1/3;font-size:19px}.input-table tbody td{font-size:12px}.input-table td:before{display:block;color:var(--muted);font-size:10px;margin-bottom:2px}.input-table td:nth-child(2):before{content:'마이크'} .input-table td:nth-child(3):before{content:'불기 버튼'}.input-table td:nth-child(4):before{content:'스페이스바'}.input-table td:nth-child(5):before{content:'바람 보내기'}.input-table td:nth-child(6){grid-column:1/3}.input-table td:nth-child(6):before{content:'요구 사항'}.vision-wide{margin-top:30px}.vision-wide img{aspect-ratio:1.4/1}.other-devices{grid-template-columns:1fr;gap:30px;margin-top:35px}.other-devices>figure{max-width:235px}.watch-shots{gap:10px}.watch-shots img{width:calc((100% - 20px)/3);border-radius:10px}.watch-panel h3{font-size:22px;margin-top:20px}.watch-panel p{font-size:13px}.quick-steps{gap:27px 20px;margin-bottom:28px}.step-number{margin-bottom:17px;font-size:11px}.quick-steps h3{font-size:16px}.quick-steps p{font-size:12px;margin-top:10px}.quick-start .button{font-size:12px;padding-inline:18px}.privacy-layout{gap:25px}.sound-flow{gap:10px;font-size:12px;padding:17px 0}.privacy-layout p{font-size:14px}.safety h3{font-size:20px}.free-line{align-items:flex-start;gap:25px;margin-top:35px}.free-line h2{font-size:50px;flex-shrink:0}.free-line p{font-size:14px}.free-line span{font-size:10px;margin-top:9px}summary{font-size:15px;min-height:72px;gap:20px;padding:16px 0}details p{font-size:13px;padding:0 20px 22px 0}.faq>.text-link{font-size:13px}.final-cta{display:flex;flex-direction:column;gap:28px;align-items:stretch;margin-bottom:65px}.final-cta>div:first-child img{aspect-ratio:1.75;object-position:50% 40%}.final-cta h2{font-size:34px;margin:17px 0 24px}.final-cta .text-link{font-size:13px;margin-left:20px}.final-cta .button{font-size:13px;padding-inline:18px}.final-cta .caption{font-size:10px;max-width:300px}.site-footer{padding-top:35px}.footer-top{gap:14px}.footer-links{gap:10px 20px}.site-footer a:not(.brand){font-size:11px}.footer-bottom{margin-top:22px;padding-top:20px}.family{gap:10px 20px}.family>span{width:100%}.guide-cover{padding:26px 0 35px;margin-bottom:20px}.guide-cover h1{font-size:40px;margin-top:16px}.guide-cover>.lead{font-size:16px;margin-top:18px}.guide-toc{grid-template-columns:1fr 1fr;gap:5px 20px;margin-top:25px}.guide-toc a{font-size:12px}.guide-section{padding:35px 0 45px;margin-bottom:15px;gap:27px}.guide-copy h2{font-size:32px;margin:15px 0 22px}.guide-copy p,.guide-copy li,.guide-copy dd{font-size:14px}.guide-copy li+li{margin-top:13px}.guide-visual>img{max-width:250px}.guide-visual>figcaption{font-size:10px}.ui-recreation{border-radius:17px;padding:22px 20px}.ui-recreation h3{font-size:26px}.ui-item{gap:12px;margin-top:23px}.ui-item strong,.ui-option strong{font-size:16px}.ui-item p{font-size:12px}.tip{font-size:12px;padding:16px 18px;margin-top:22px}.screen-legend dt{font-size:14px}.screen-legend dd{font-size:13px}.mark{width:22px;height:22px;font-size:11px}.ui-quote{font-size:11px;padding:13px}.ui-toggle{font-size:13px}.ui-option p{font-size:12px}.guide-modes{padding:35px 0 45px;margin-bottom:15px}.guide-mode{display:flex;flex-direction:column;gap:25px;padding:30px 0;align-items:stretch}.guide-mode figure{max-width:210px;align-self:center}.guide-mode h3{font-size:29px;margin:10px 0 20px}.guide-mode p,.guide-mode li{font-size:14px}.device-guide{padding:35px 0 45px}.device-guide-row{grid-template-columns:1fr;gap:25px;margin-top:35px;padding-bottom:30px;border-bottom:1px solid var(--line)}.device-guide-row:last-child{border:0;padding-bottom:0}.device-guide-row figure,.device-guide-row:last-of-type figure{max-width:245px;justify-self:center}.device-guide-row:first-of-type figure{max-width:150px}.device-guide-row h3{font-size:23px}.device-guide-row p,.device-guide-row li{font-size:14px}.guide-trouble{padding:45px 0 65px}.guide-trouble>.text-link{margin-left:16px;font-size:12px}.guide-trouble>.button{font-size:13px}.not-found{padding:65px 0 90px}.not-found h1{font-size:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
/* 재현 화면도 웹 대비 기준에 맞춘다. */
.ui-button{font-size:20px}.ui-heading span{color:#0065d1}
.ui-family-label{margin-top:25px!important;font-size:11px!important}.ui-family-row{display:flex;gap:10px;justify-content:space-between;align-items:center;border-bottom:1px solid #e1e6e3;padding:15px 0;font-size:13px}.ui-family-row small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.ui-family-row>span{font-size:10px;flex-shrink:0;color:var(--muted)}

/* 리뷰: 조작 영역, 표의 읽기 순서, 작은 안내의 가독성을 보강한다. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.brand{min-height:44px}
.site-header nav>a:not(.button){min-width:44px;justify-content:center}
#main:focus{outline:none}
.ui-button{background:#0065d1}
.ui-check{color:#0065d1}
.ui-toggle>span{background:var(--green)}
.guide-mode{scroll-margin-top:30px}
@media (min-width:761px) and (max-width:940px){
 .hero-copy{grid-area:1 / 1 / 2 / 3;margin-bottom:26px}
 .hero-copy h1{font-size:58px}
 .observation{grid-area:2 / 1 / 3 / 3;aspect-ratio:2.8/1}
 .observation-controls{grid-area:3 / 1 / 4 / 3;padding-bottom:24px}
 .hero-aside{grid-area:4 / 1 / 5 / 3;display:grid;grid-template-columns:1fr 1fr;gap:10px 30px;padding-top:0}
 .hero-aside>p:nth-child(2){grid-column:1;margin-top:6px}
 .hero-ui{grid-column:2;grid-row:1/3;margin-top:0;align-self:center}
 .demo-note{grid-area:5 / 1 / 6 / 3}
}
@media(max-width:540px){
 .price-note,.observation-controls>p,.demo-controls>span,.quiet-button,.demo-note,.hero-ui figcaption,.guide-visual>figcaption,.mode-row figcaption{font-size:12px}
 .postcard p,.spec-label p,.quick-steps p,.input-table tbody td{font-size:13px}
 .spec-label small,.input-table td:before,.free-line span,.final-cta .caption{font-size:12px}
 .spec-label p{min-height:44px}
 .guide-trouble>.text-link{margin-left:0;margin-top:12px;display:flex;width:fit-content}
}

/* 사진 밝기와 무관하게 관찰 창의 키보드 포커스를 구별한다. */
.blow-button:focus-visible{outline:3px solid #fff;outline-offset:3px;box-shadow:0 0 0 8px var(--ink)}
