:root{--black:#0c0c0c;--ink:#1a1a1a;--paper:#f7f7f7;--muted:#707070;--line:#d9d9d9;--sans:"Noto Sans KR",'Apple SD Gothic Neo','Noto Sans KR',Arial,sans-serif;--pad:clamp(24px,6.25vw,120px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:50px}body{margin:0;font-family:var(--sans);font-size:16px;line-height:1.6;background:var(--black);color:var(--ink);-webkit-font-smoothing:antialiased}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit}button,a{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:2px solid #a7a7a7;outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:400;word-break:keep-all}h2 span,h1 span{display:block}h2{font-size:clamp(34px,3.7vw,60px);line-height:1.24;letter-spacing:-.055em}p{word-break:keep-all}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;top:-80px;left:24px;background:white;color:black;padding:14px 24px;z-index:100}.skip-link:focus{top:12px}.section-dark{background:var(--black);color:#f5f5f5}.section-light{background:var(--paper);color:var(--ink)}.eyebrow{font-family:Arial,sans-serif;font-size:12px;letter-spacing:.16em;font-weight:500;line-height:1.5}.button{min-height:48px;padding:12px 34px;border-radius:3px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;line-height:1.5;transition:background .2s,color .2s,transform .2s;min-width:176px}.button:hover{transform:translateY(-2px)}.button:active{transform:translateY(0)}.button-light{background:#f5f5f5;color:#151515;border:1px solid #f5f5f5}.button-light:hover{background:#dddddd;border-color:#dddddd}.button-outline{border:1px solid #ffffff50;background:transparent;color:#f5f5f5}.button-outline:hover{background:#ffffff12}.text-button{border:0;border-bottom:1px solid currentColor;padding:8px 0;background:none;font-size:14px;text-align:left;line-height:1.6}.text-button:hover{opacity:.7}
.site-header{height:80px;width:100%;position:absolute;top:0;left:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:0 3.5vw;color:#ffffff;border-bottom:1px solid #ffffff12}.wordmark{font-family:Arial,sans-serif;font-size:19px;font-weight:500;letter-spacing:.09em;white-space:nowrap;line-height:1.1}.desktop-nav{display:flex;gap:36px;font-size:14px}.desktop-nav a{color:#bababa;transition:color .2s}.desktop-nav a:hover{color:white}.header-actions{display:flex;align-items:center;gap:26px}.header-contact{font:14px Arial,sans-serif}.header-contact span{padding-left:12px}.menu-toggle{display:none;border:0;background:none;width:30px;height:44px;padding:12px 0}.menu-toggle span{display:block;height:1px;background:white;width:22px;margin:6px 0}.mobile-menu{position:absolute;z-index:30;top:79px;left:0;right:0;padding:22px 24px 28px;background:#161616;box-shadow:0 20px 20px #00000066;color:white}.mobile-menu a{display:block;padding:14px 0;border-bottom:1px solid #ffffff1c;font-size:16px}
.hero{min-height:100svh;padding:137px var(--pad) 25px;overflow:hidden;background:#0c0c0c}.hero-intro{text-align:center;max-width:1030px;margin:0 auto}.hero-intro .eyebrow{color:#a0a0a0;margin-bottom:20px}.hero h1{font-size:clamp(42px,5.3vw,78px);letter-spacing:-.065em;line-height:1.18}.hero h1 span{display:inline}.hero h1 span+span:before{content:' '}.hero-description{color:#aaaaaa;font-size:16px;line-height:1.75;max-width:680px;margin:22px auto 0}.hero-actions{display:flex;gap:12px;justify-content:center;margin-top:27px}.step-label{font:12px Arial,sans-serif;letter-spacing:.1em;color:#848484;line-height:1.6}
.engine-section{padding:126px var(--pad) 114px}.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:0 8vw}.section-heading>.eyebrow{grid-column:1/-1;margin-bottom:23px;color:#6e6e6e}.section-heading h2{max-width:580px}.section-lead{align-self:end;max-width:430px;justify-self:end;color:#757575;font-size:17px;line-height:1.85;padding-bottom:3px}.value-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:73px;border-top:1px solid var(--line)}.value-item{padding:34px 30px 0 0;display:flex;flex-direction:column}.value-item+.value-item{border-left:1px solid var(--line);padding-left:36px}.value-number{font:13px Arial,sans-serif;color:#8e8e8e;margin-bottom:44px}.value-item h3{font-size:23px;line-height:1.5;letter-spacing:-.045em;margin-bottom:15px}.value-item p{font-size:16px;line-height:1.9;color:#797979;max-width:340px}.value-tag{display:block;margin-top:30px;font:12px Arial,sans-serif;letter-spacing:.06em;color:#878787}
.workflow-section{padding:118px var(--pad) 64px;background:#111111}.workflow-heading{display:flex;gap:50px;align-items:flex-end;justify-content:space-between}.workflow-heading .eyebrow{color:#878787;margin-bottom:22px}.workflow-heading>p{font-size:16px;color:#979797;max-width:350px;line-height:1.8;padding-bottom:5px}.workflow-tabs{display:grid;grid-template-columns:repeat(3,1fr);margin-top:60px;border-bottom:1px solid #484848}.workflow-tab{background:none;color:#979797;text-align:left;border:0;border-bottom:2px solid transparent;margin-bottom:-1px;padding:17px 20px 20px 0;display:flex;align-items:center;gap:17px;font-size:15px}.workflow-tab>span:first-child{font:12px Arial,sans-serif;color:#878787}.workflow-tab[aria-selected=true]{color:white;border-color:#e9e9e9}.workflow-tab[aria-selected=true]>span:first-child{color:#d8d8d8}.workflow-tab:hover{color:white}.workflow-stage{background:#090909;border:1px solid #2b2b2b;border-top:0;border-radius:0 0 4px 4px;overflow:hidden}.workflow-panel{display:grid;grid-template-columns:41% 59%;min-height:540px;animation:panel-in .38s ease both}.case-brief{padding:45px 45px 38px;position:relative;z-index:1;display:flex;flex-direction:column}.case-brief h3{font-size:clamp(24px,2.5vw,37px);line-height:1.36;letter-spacing:-.04em;margin-top:20px;max-width:340px}.case-brief>p:not(.step-label):not(.case-note){font-size:16px;line-height:1.85;color:#a5a5a5;margin-top:21px;max-width:360px}.case-specs{margin:27px 0 0}.case-specs>div{display:flex;gap:12px;justify-content:space-between;padding:9px 0;border-top:1px solid #ffffff13;font-size:14px}.case-specs dt{color:#9b9b9b}.case-specs dd{margin:0;font-family:Arial,sans-serif;color:#e5e5e5;text-align:right}.case-note{font-size:12px;color:#919191;margin-top:17px!important;line-height:1.75}.case-list{list-style:none;padding:0;margin:28px 0 30px;font-size:14px;color:#bebebe}.case-list li{padding:11px 0;border-top:1px solid #ffffff16}.case-brief .text-button{align-self:flex-start;margin-top:auto}.output-panel{background:#efefef;color:#202020}.output-panel .step-label{color:#787878}.workflow-footer{display:flex;justify-content:space-between;gap:40px;align-items:center;margin-top:18px}.workflow-footer p{font-size:12px;color:#919191;line-height:1.8}.next-step{display:flex;gap:30px;align-items:center;white-space:nowrap;background:none;border:0;font-size:14px;color:#cdcdcd;padding:10px 0 10px 12px}.next-step:hover{color:white}.next-step>span:last-child{font-family:Arial,sans-serif;font-size:22px;transition:transform .2s}.next-step:hover>span:last-child{transform:translateX(4px)}@keyframes panel-in{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
.company-section{padding:124px var(--pad) 104px}.company-intro{display:grid;grid-template-columns:1.15fr 1fr;gap:0 7vw}.company-intro>.eyebrow{grid-column:1/-1;color:#7e7e7e;margin-bottom:23px}.company-copy{max-width:460px;margin-top:7px;justify-self:end}.company-copy p{font-size:16px;line-height:1.95;color:#787878}.company-copy p:first-child{color:#282828;margin-bottom:18px;font-size:19px}
.craft-section{min-height:560px;display:grid;grid-template-columns:1fr 1fr;background:#111111;color:white;overflow:hidden}.craft-visual{position:relative;min-height:560px;overflow:hidden;background:#000000}.craft-visual>span{position:absolute;bottom:38px;left:var(--pad);font:12px Arial,sans-serif;letter-spacing:.05em;color:#8c8c8c}.craft-copy{padding:86px var(--pad) 74px 6vw;align-self:center}.craft-copy>.eyebrow{color:#8c8c8c;margin-bottom:23px}.craft-copy h2{font-size:clamp(34px,3.8vw,58px)}.craft-copy>p:not(.eyebrow){color:#9b9b9b;max-width:400px;font-size:16px;line-height:1.9;margin-top:24px}.craft-copy .button{margin-top:35px;min-width:220px}.contact-section{padding:120px var(--pad) 102px;text-align:center}.contact-section .eyebrow{color:#898989;margin-bottom:26px}.contact-section h2{font-size:clamp(37px,4.3vw,66px)}.contact-section>p:not(.eyebrow){font-size:16px;color:#848484;line-height:1.85;max-width:560px;margin:26px auto 0}.contact-main{font:500 clamp(30px,3vw,42px) Arial,sans-serif;letter-spacing:-.045em;display:inline-flex;gap:42px;align-items:center;border-bottom:1px solid #282828;padding:8px 0 13px;margin:38px auto 0;transition:gap .25s}.contact-main:hover{gap:65px}.contact-main span{font-size:34px}.email-line{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:17px;margin:27px auto 0;color:#797979;font:14px Arial,sans-serif}.copy-email{border:1px solid #cacaca;background:none;border-radius:2px;padding:8px 12px;font-size:12px;min-width:47px;min-height:36px}.copy-email:hover{background:#e6e6e6}.site-footer{background:#efefef;border-top:1px solid #dcdcdc;display:flex;align-items:center;justify-content:space-between;padding:31px var(--pad);gap:20px}.site-footer .wordmark{font-size:16px;color:#363636}.site-footer p,.site-footer>span,.site-footer>a:last-child{font:12px Arial,sans-serif;color:#7f7f7f;letter-spacing:.015em}
.image-dialog{padding:0;border:1px solid #343434;border-radius:7px;background:#131313;color:white;width:min(1200px,94vw);max-width:94vw;height:min(820px,90svh);max-height:90svh;overflow:hidden;box-shadow:0 30px 100px #00000088}.image-dialog::backdrop{background:#000000cc;backdrop-filter:blur(8px)}.dialog-toolbar{height:66px;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid #ffffff1a}.dialog-toolbar h2{font-size:16px;letter-spacing:-.02em;line-height:1.4}.dialog-toolbar>div{display:flex;align-items:center;gap:24px}.dialog-close{background:none;border:0;font:30px Arial,sans-serif;width:40px;height:44px}.dialog-zoom{font-size:14px;background:none;border:1px solid #5a5a5a;border-radius:3px;padding:7px 14px;min-height:38px}.dialog-content{height:calc(100% - 66px);overflow:auto;display:flex;align-items:center;background:#090909;overscroll-behavior:contain}.dialog-content>img{width:100%;max-width:none;flex-shrink:0;object-fit:contain}.dialog-content.zoomed{display:block}.dialog-content.zoomed>img{width:max(1700px,160%);height:auto}.dialog-content.proposal-content{background:#ffffff}.dialog-content.proposal-content>img{width:100%}.dialog-content.proposal-content.zoomed>img{width:max(2200px,260%);max-width:none}.reveal{opacity:1}.motion-enabled .reveal{transition:opacity .65s ease,transform .65s ease}.motion-enabled .reveal:not(.visible){opacity:0;transform:translateY(22px)}
@media(min-width:1600px){.hero{padding-top:157px}}
@media(max-width:1100px){.hero{padding-top:125px}.desktop-nav{gap:25px}.header-actions{gap:18px}.hero h1 span{display:block}.hero h1 span+span:before{content:none}.value-item h3{font-size:21px}.value-item+.value-item{padding-left:26px}.section-lead{font-size:16px}.workflow-panel{grid-template-columns:43% 57%}.case-brief{padding:35px 30px}.case-specs>div{flex-wrap:wrap;gap:5px}.case-specs dd{font-size:14px}.craft-copy{padding-left:5vw}.site-footer p{max-width:150px;line-height:1.6}}
@media(max-width:760px){:root{--pad:24px}html{scroll-padding-top:22px}.site-header{height:72px;padding:0 24px}.wordmark{font-size:16px}.desktop-nav{display:none}.header-actions{gap:19px}.header-contact{font-size:12px}.header-contact span{padding-left:5px}.menu-toggle{display:block}.mobile-menu{top:71px}.hero{padding-top:119px;padding-bottom:24px}.hero-intro .eyebrow{font-size:12px;letter-spacing:.09em;margin-bottom:21px}.hero h1{font-size:clamp(36px,9vw,61px);line-height:1.24;letter-spacing:-.06em}.hero-description{font-size:16px;max-width:400px;margin-top:21px;line-height:1.8}.hero-actions{margin-top:25px;gap:10px}.button{font-size:14px;padding:12px 20px;min-width:145px;min-height:46px}.step-label{font-size:12px}.engine-section,.company-section{padding:80px var(--pad)}.section-heading{display:block}.section-heading>.eyebrow{margin-bottom:22px}h2{font-size:clamp(31px,7.8vw,49px);line-height:1.3}.section-lead{margin-top:25px;font-size:16px;max-width:460px;line-height:1.9}.value-grid{grid-template-columns:1fr;margin-top:40px;border:0}.value-item{padding:25px 0 28px;border-top:1px solid var(--line)}.value-item+.value-item{padding:25px 0 28px;border-left:0}.value-number{margin-bottom:20px;font-size:12px}.value-item h3{font-size:23px;margin-bottom:12px}.value-item p{font-size:16px;max-width:100%}.value-tag{margin-top:23px}.value-item:last-child{padding-bottom:0}.workflow-section{padding:79px var(--pad) 38px}.workflow-heading{display:block}.workflow-heading>p{margin-top:25px;max-width:440px;font-size:16px}.workflow-tabs{margin-top:35px}.workflow-tab{font-size:14px;padding:16px 8px 17px 0;gap:8px;line-height:1.5;align-items:baseline}.workflow-tab>span:first-child{font-size:12px}.workflow-stage{margin:0 -7px}.workflow-panel{grid-template-columns:1fr;min-height:auto}.case-brief{padding:29px 22px 25px}.case-brief h3{font-size:30px;max-width:400px;margin-top:15px}.case-brief>p:not(.step-label):not(.case-note){font-size:16px;margin-top:16px;max-width:100%}.case-specs{margin-top:23px}.case-specs>div{font-size:14px;padding:10px 0;flex-wrap:nowrap}.case-specs dd{font-size:14px}.case-note{font-size:12px}.case-list{margin:22px 0 23px;font-size:14px}.workflow-footer{gap:15px;align-items:flex-start;margin-top:17px}.workflow-footer p{font-size:12px;max-width:72%}.next-step{font-size:14px;gap:12px;padding-top:0}.next-step>span:last-child{font-size:21px}.company-intro{display:block}.company-intro>.eyebrow{margin-bottom:22px}.company-copy{margin-top:28px;max-width:100%}.company-copy p:first-child{font-size:18px}.company-copy p{font-size:16px}.craft-section{grid-template-columns:1fr}.craft-visual{min-height:335px;order:2}.craft-visual>span{left:24px;bottom:22px}.craft-copy{padding:70px var(--pad) 40px}.craft-copy h2{font-size:40px}.craft-copy>p:not(.eyebrow){font-size:16px;max-width:100%}.craft-copy .button{min-width:210px;margin-top:27px}.contact-section{padding:83px var(--pad) 73px}.contact-section .eyebrow{margin-bottom:22px}.contact-section h2{font-size:clamp(30px,7.7vw,46px)}.contact-section>p:not(.eyebrow){font-size:16px;margin-top:25px;max-width:380px}.contact-main{margin-top:32px;font-size:34px;gap:36px}.contact-main span{font-size:29px}.email-line{font-size:14px;gap:13px}.site-footer{flex-wrap:wrap;padding:27px 24px;gap:22px}.site-footer .wordmark{width:calc(50% - 11px);font-size:15px}.site-footer p{width:calc(50% - 11px);max-width:none;font-size:12px;text-align:right}.site-footer>a:last-child{margin-left:auto}.image-dialog{width:96vw;max-width:96vw;height:84svh;max-height:84svh}.dialog-toolbar{height:60px;padding:10px 14px}.dialog-toolbar h2{font-size:14px}.dialog-toolbar>div{gap:12px}.dialog-content{height:calc(100% - 60px)}.dialog-zoom{font-size:14px;padding:5px 10px}.dialog-content.proposal-content{align-items:flex-start}.dialog-content.proposal-content>img{width:310%;margin-left:-105%}.dialog-content.proposal-content.zoomed>img{width:620%;margin-left:-210%}.dialog-content.zoomed>img{width:2000px}.dialog-close{font-size:26px;width:30px}}
@media(max-width:360px){:root{--pad:18px}.site-header{padding:0 18px}.header-actions{gap:13px}.hero h1{font-size:34px}.hero-actions .button{min-width:131px;padding:12px 14px}.case-brief h3{font-size:27px}.case-specs>div{flex-wrap:wrap}.workflow-tab{font-size:14px;gap:5px}.workflow-tab>span:first-child{display:none}}
.dialog-content.proposal-content>img,.dialog-content.proposal-content.zoomed>img{margin-left:0}
/* Visual evidence follows the existing three-column rhythm. */
.value-grid{gap:28px;border-top:0;margin-top:52px}
.value-item,.value-item+.value-item{padding:0;border:0;min-width:0}
.value-link{display:flex;flex-direction:column;flex:1;outline-offset:8px}

.value-metric{display:flex;gap:15px;align-items:baseline;margin-bottom:22px}
.value-number{font:400 clamp(58px,5.6vw,84px)/1 Arial,sans-serif;color:#252525;letter-spacing:-.07em;margin:0}
.value-unit{font-size:14px;color:#777777;line-height:1.5}
.value-item h3{font-size:23px}
.value-item p{max-width:none;flex:1}
.value-tag{border-top:1px solid #d3d3d3;padding-top:19px;margin-top:26px;font:14px var(--sans);color:#424242;transition:color .2s}
.value-link:hover .value-tag{color:#000000}













.evidence-note{font-size:12px;line-height:1.75;color:#898989;margin-top:24px}
.workflow-status{display:flex;align-items:center;gap:18px;padding:16px 22px;border:1px solid #2b2b2b;border-top:0;background:#1a1a1a;color:#bdbdbd;font-size:12px}
#step-counter{font:12px Arial,sans-serif;color:#f5f5f5;white-space:nowrap}
.workflow-status-tag{margin-left:auto;font:10px Arial,sans-serif;letter-spacing:.1em;color:#949494}
.workflow-tab>span:first-child{font:26px/1 Arial,sans-serif;letter-spacing:-.03em;transition:color .2s}
.workflow-tab{transition:color .2s,border-color .2s}
.document-parts{display:flex;flex-direction:column;margin:24px 0;gap:1px}
.document-part{display:grid;grid-template-columns:27px 1fr 15px;gap:10px;align-items:center;padding:12px 12px 12px 0;border:0;border-bottom:1px solid #d1d1d1;background:transparent;text-align:left;font-size:14px;color:#7b7b7b;transition:background .2s,color .2s,padding .2s;min-height:46px}
.document-part>span:first-child{font:11px Arial,sans-serif;color:#8e8e8e}
.document-part>span:last-child{opacity:0;transition:opacity .2s}
.document-part[aria-pressed=true]{padding-left:12px;background:#e0e0e0;color:#1b1b1b}
.document-part[aria-pressed=true]>span:last-child,.document-part:hover>span:last-child{opacity:1}
.document-part:hover{color:#171717}
.proposal-inspector{padding:27px 28px;background:#e4e4e4;min-width:0;display:flex;flex-direction:column;justify-content:center}
.inspector-chrome{display:flex;justify-content:space-between;gap:15px;padding-bottom:17px;font:10px Arial,sans-serif;letter-spacing:.1em;color:#757575;border-bottom:1px solid #cccccc}
.document-detail{animation:panel-in .3s ease both}
.document-detail-visual{min-height:305px;display:flex;align-items:center;padding:26px 0}



.document-detail-copy{border-top:1px solid #cccccc;padding-top:22px}
.document-detail-copy h4{font-size:20px;font-weight:400;letter-spacing:-.04em;margin:0 0 12px;line-height:1.5;word-break:keep-all}
.document-detail-copy p{color:#737373;font-size:14px;line-height:1.85}
.estimate-outline{background:#ffffff;width:100%;padding:28px 25px;box-shadow:0 8px 25px #00000007}
.estimate-outline>span{font:11px Arial,sans-serif;letter-spacing:.12em;color:#979797;display:block;margin-bottom:23px}
.estimate-outline>div{font-size:16px;color:#4a4a4a;padding:14px 0;border-top:1px solid #e1e1e1}
.heritage-row{display:grid;grid-template-columns:1fr 1.25fr;gap:36px;margin-top:55px;padding:35px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);align-items:center}
.heritage-number>span{font:400 clamp(49px,4.5vw,68px)/1.1 Arial,sans-serif;letter-spacing:-.055em}
.heritage-number small{font:11px Arial,sans-serif;color:#969696;letter-spacing:.06em;margin-left:8px}
.heritage-number p{font-size:12px;color:#828282;margin-top:13px;line-height:1.75}
.heritage-caption{font-size:16px;color:#6d6d6d;line-height:1.9;max-width:280px;justify-self:end}
.heritage-caption small{font-size:11px;color:#9b9b9b;display:block;margin-top:10px}
.engine-levels,.brand-section{margin-top:94px;scroll-margin-top:45px}
.subsection-heading{max-width:770px}
.subsection-heading .eyebrow{color:#868686;margin-bottom:21px}
.subsection-heading h3{font-size:clamp(28px,3vw,44px);line-height:1.3;letter-spacing:-.05em}
.subsection-heading>p:last-child{font-size:16px;color:#7d7d7d;line-height:1.9;margin-top:20px;max-width:670px}

.level-card{border-top:1px solid #cfcfcf;padding-top:25px;min-width:0;display:flex;flex-direction:column}
.level-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:23px}
.level-number{font:400 54px/1 Arial,sans-serif;letter-spacing:-.06em}
.level-status{font-size:11px;line-height:1.6;color:#757575;border:1px solid #d6d6d6;border-radius:2px;padding:5px 8px;text-align:right;max-width:140px}

.level-name{font:11px Arial,sans-serif;letter-spacing:.1em;color:#9a9a9a;margin-top:26px}
.level-card h4{font-weight:400;font-size:22px;letter-spacing:-.035em;margin:10px 0 15px;line-height:1.5;word-break:keep-all}


.brand-section{padding-top:65px;border-top:1px solid var(--line)}
.brand-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:38px}
.brand-photo{width:100%;aspect-ratio:1.5;object-fit:cover}
.brand-title{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-top:23px;flex-wrap:wrap}
.brand-title h4{font:500 22px Arial,sans-serif;letter-spacing:.12em;margin:0}
.brand-title>span{font-size:12px;color:#717171}
.brand-card>p{font-size:14px;color:#909090;line-height:1.9;margin-top:15px}
.craft-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.craft-visual:after{content:'';position:absolute;inset:65% 0 0;background:linear-gradient(transparent,#00000099)}
.craft-visual>span{z-index:1;color:#dddddd}
.contact-topics{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.contact-topics a{border:1px solid #d1d1d1;border-radius:2px;padding:11px 17px;font-size:13px;color:#747474;transition:background .2s,color .2s}
.contact-topics a:hover{background:#272727;color:#ffffff;border-color:#272727}

.stone-preview{background:#0b0b0b;position:relative;min-height:410px;overflow:hidden;transition:background .25s}
.stone-preview[data-mode=lightbox]{background:#e6e6e6}
.stone-capture{position:absolute;top:50%;left:50%;width:100%;aspect-ratio:900/657;transform:translate(-50%,-50%);overflow:hidden}
.stone-capture img{position:absolute;max-width:none;width:227.555556%;height:auto;left:-63.777778%;top:-38.05175%;transform:none}
.stone-preview-label{position:absolute;top:22px;left:23px;font:11px Arial,sans-serif;letter-spacing:.12em;color:#999999}
.stone-preview[data-mode=lightbox] .stone-preview-label{color:#6b6b6b}
.stone-modes{position:absolute;bottom:22px;left:23px;display:flex;border:1px solid #555555;background:#1b1b1b;border-radius:3px;overflow:hidden}
.stone-modes button{border:0;background:none;padding:9px 14px;min-height:42px;color:#b3b3b3;font-size:12px}
.stone-modes button[aria-pressed=true]{background:#ededed;color:#111111}




.stone-facts{display:flex;gap:25px;margin:26px 0}
.stone-facts>div{display:flex;flex-direction:column;gap:7px}
.stone-facts strong{font:400 29px/1 Arial,sans-serif;letter-spacing:-.045em}
.stone-facts span{font-size:11px;color:#898989}



@media(max-width:1100px){.value-grid,.level-grid,.brand-grid{gap:21px}.value-unit{font-size:12px}.value-metric{gap:11px}.value-number{font-size:62px}.proposal-inspector{padding:25px 22px}.heritage-row{gap:22px}.level-status{font-size:10px}.level-card h4{font-size:20px}.stone-facts{gap:20px}.stone-preview{min-height:440px}}
@media(max-width:760px){.value-grid{margin-top:37px;gap:36px}.value-item,.value-item+.value-item{padding:0;border:0}.value-number{font-size:65px}.value-unit{font-size:14px}.value-metric{margin-bottom:17px;gap:15px}.value-item p{font-size:15px}.value-tag{font-size:14px;padding-top:15px;margin-top:21px}.evidence-note{margin-top:24px;font-size:11px}.workflow-tab>span:first-child{font-size:22px;display:block}.workflow-tab{gap:11px}.workflow-status{margin:0 -7px;padding:14px 15px;gap:13px;font-size:11px}.workflow-status-tag{display:none}.document-parts{margin:21px 0}.document-part{min-height:47px}.proposal-inspector{padding:20px 21px 28px}.document-detail-visual{min-height:240px}.document-detail-copy h4{font-size:21px}.document-detail-copy p{font-size:14px}.heritage-row{grid-template-columns:1fr;margin-top:34px;padding:26px 0;gap:24px 20px}.heritage-number>span{font-size:52px}.heritage-number small{font-size:9px;margin-left:4px}.heritage-number p{font-size:11px}.heritage-caption{grid-column:1/-1;max-width:none;justify-self:start;font-size:15px;line-height:1.8}.heritage-caption small{font-size:10px;margin-top:5px}.engine-levels,.brand-section{margin-top:65px}.subsection-heading .eyebrow{font-size:10px;margin-bottom:19px}.subsection-heading h3{font-size:29px}.subsection-heading>p:last-child{font-size:15px;margin-top:18px}.level-grid,.brand-grid{grid-template-columns:1fr;gap:36px;margin-top:30px}.level-card-top{margin-bottom:20px}.level-number{font-size:57px}.level-status{font-size:12px;max-width:none}.level-card h4{font-size:24px;margin:10px 0 13px}.brand-section{padding-top:38px}.brand-title h4{font-size:24px}.brand-title>span{font-size:13px}.brand-card>p{margin-top:12px;font-size:14px}.brand-photo{aspect-ratio:1.6}.craft-visual{min-height:390px}.contact-topics{gap:8px;margin-top:25px}.contact-topics a{font-size:12px;padding:11px 13px}.stone-preview{min-height:300px}.stone-facts{gap:34px}.stone-preview-label{top:17px;left:18px;font-size:10px}.stone-modes{left:18px;bottom:18px}.stone-modes button{font-size:12px;padding:8px 14px}}
@media(max-width:360px){.workflow-tab{font-size:12px;gap:8px}.workflow-tab>span:first-child{font-size:18px}.value-number{font-size:59px}.heritage-number>span{font-size:46px}.level-status{font-size:10px}.stone-preview{min-height:270px}.stone-facts{gap:28px}.contact-topics a{padding:10px;font-size:11px}}

/* A stone, a ring, and the drawing screen lead the introduction. */
.hero.hero-stone{background:#0b0b0b;min-height:100svh;padding:125px var(--pad) 30px;display:flex;flex-direction:column;justify-content:center}
.hero-stone .hero-intro{width:100%;max-width:1050px;position:relative;z-index:2}
.hero-stone .hero-intro .eyebrow{font-size:11px;letter-spacing:.15em;margin-bottom:18px}
.hero-stone h1{font-size:clamp(42px,4.8vw,70px)}
.hero-stone .hero-description{font-size:15px;max-width:640px;margin-top:18px}
.hero-stone-canvas{width:100%;max-width:1180px;margin:8px auto 0}
.hero-stone .stone-preview{height:clamp(350px,47svh,540px);min-height:0;background:#0b0b0b;border-radius:3px}
.hero-stone .stone-preview[data-mode=lightbox]{background:#e6e6e6}
.hero-stone .stone-capture{width:min(800px,100%)}
.hero-stone .stone-preview-label{top:26px;left:0;font-size:10px;color:#828282}
.hero-stone .stone-preview[data-mode=lightbox] .stone-preview-label{left:22px;color:#6c6c6c}
.stone-view-actions{position:absolute;bottom:21px;left:0;right:0;display:flex;justify-content:space-between;align-items:center;gap:20px}
.hero-stone .stone-modes{position:static;display:flex;flex-shrink:0;border-color:#3c3c3c}
.hero-stone #stone-open{color:#aeaeae;font-size:12px;border-bottom-color:#4f4f4f;margin-right:1px}
.hero-stone .stone-preview[data-mode=lightbox] .stone-view-actions{left:22px;right:22px}
.hero-stone .stone-preview[data-mode=lightbox] #stone-open{color:#494949}
.hero-scene-footer{display:grid;grid-template-columns:1fr auto 1fr;gap:28px;align-items:center;border-top:1px solid #ffffff14;padding-top:27px;width:100%;max-width:1180px;margin:0 auto}
.hero-scene-footer .stone-facts{margin:0;gap:35px}
.hero-scene-footer .stone-facts strong{font-size:28px;color:#e9e9e9}
.hero-scene-footer .stone-facts span{font-size:10px;color:#929292}


.hero-source-note{text-align:right;font-size:10px;color:#808080}
.ring-section{background:#000000;padding:72px var(--pad);display:grid;grid-template-columns:.9fr 1.1fr;min-height:90svh;align-items:center;gap:38px;overflow:hidden;scroll-margin-top:0}
.ring-copy{position:relative;z-index:1;padding:26px 0}
.ring-copy .eyebrow{font-size:11px;color:#919191;letter-spacing:.13em;margin-bottom:26px}
.ring-copy h2{font-size:clamp(34px,3.8vw,57px);line-height:1.27}
.ring-description{font-size:16px;line-height:1.85;color:#9e9e9e;max-width:430px;margin-top:26px}
.ring-specs{margin:34px 0 0;display:flex;flex-direction:column;max-width:430px}
.ring-specs>div{display:flex;align-items:baseline;justify-content:space-between;gap:18px;border-top:1px solid #ffffff1c;padding:15px 0}
.ring-specs dt{font-size:12px;color:#9a9a9a}
.ring-specs dd{font:18px Arial,sans-serif;letter-spacing:.01em;margin:0;color:#d7d7d7;text-align:right}
.ring-specs dd small{font:11px Arial,sans-serif;color:#989898;margin-left:5px}
.ring-actions{display:flex;gap:23px;align-items:center;flex-wrap:wrap;margin-top:28px}
.ring-actions .text-button{font-size:12px;color:#acacac;border-color:#5c5c5c}
.ring-visual{position:relative;min-height:660px;align-self:stretch;min-width:0;background:#000000}

.ring-visual-caption{position:absolute;left:22px;right:22px;bottom:0;display:flex;justify-content:space-between;gap:16px;color:#8d8d8d;font:10px Arial,sans-serif;letter-spacing:.06em}
.ring-visual-caption>span:last-child{font:10px var(--sans);letter-spacing:0}
.drawing-first{background:#efefef;color:#232323;padding-top:101px;padding-bottom:50px}
.drawing-first .workflow-heading .eyebrow{color:#7c7c7c}
.drawing-first .workflow-heading>p{color:#787878;max-width:380px}
.drawing-first .workflow-tabs{border-color:#c1c1c1;margin-top:44px}
.drawing-first .workflow-tab{color:#868686}
.drawing-first .workflow-tab>span:first-child{color:#a8a8a8}
.drawing-first .workflow-tab[aria-selected=true]{color:#1c1c1c;border-color:#1a1a1a}
.drawing-first .workflow-tab[aria-selected=true]>span:first-child{color:#2a2a2a}
.drawing-first .workflow-tab:hover{color:#282828}
.drawing-first .workflow-status{background:#242424;border-color:#242424}
.drawing-first .workflow-stage{border-color:#c2c2c2;border-radius:0 0 5px 5px}
.drawing-first .workflow-panel:not(.output-panel){color:#f5f5f5;background:#090909}
.drawing-first .output-panel{grid-template-columns:1fr;background:#f8f8f8;min-height:0}
.drawing-first .output-panel .case-brief{display:grid;grid-template-columns:1fr auto;padding:22px 30px 0;gap:16px 22px;background:#f8f8f8}
.drawing-first .output-panel .case-brief .step-label{grid-column:1;grid-row:1;align-self:center;color:#808080;font-size:10px}
.drawing-first .output-panel .case-brief>.text-button{grid-column:2;grid-row:1;margin:0;align-self:center;font-size:12px;color:#616161;padding:5px 0}
.drawing-first .document-parts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;grid-column:1/-1;grid-row:2;margin:0}
.drawing-first .document-part{font-size:13px;grid-template-columns:20px 1fr 12px;gap:8px;padding:12px 10px;min-height:48px;border-bottom:2px solid transparent}
.drawing-first .document-part[aria-pressed=true]{background:#e9e9e9;border-color:#373737}
.drawing-first .document-part>span:first-child{font-size:10px}
.drawing-first .proposal-inspector{padding:25px 30px 31px;background:#f8f8f8}
.drawing-first .inspector-chrome{font-size:10px;padding-bottom:17px;border-color:#d6d6d6}
.drawing-first .document-detail-visual{padding:26px 0;min-height:290px}

.drawing-first .document-detail-copy{display:grid;grid-template-columns:1fr 1fr;gap:15px 35px;border-color:#d6d6d6;padding-top:23px}
.drawing-first .document-detail-copy h4{font-size:25px;line-height:1.4;letter-spacing:-.04em;margin:0}
.drawing-first .document-detail-copy p{font-size:14px;max-width:530px;line-height:1.85}
.drawing-first .document-detail:not([data-document-detail=drawings]) .document-detail-visual>*{max-width:730px;margin:0 auto}
.drawing-first .workflow-footer p{color:#898989}
.drawing-first .next-step{color:#636363}
#capabilities{padding-top:100px;padding-bottom:100px;border-top:1px solid #e2e2e2}
@media(min-width:1600px){.hero.hero-stone{padding-top:144px}.hero-stone .stone-preview{height:500px}.hero-stone .stone-capture{width:870px}.ring-visual{min-height:760px}}
@media(max-width:1100px){.hero.hero-stone{padding-top:125px}.hero-stone h1{font-size:49px}.hero-stone h1 span{display:inline}.hero-stone h1 span+span:before{content:' '}.hero-scene-footer{grid-template-columns:1fr auto;gap:22px}.hero-source-note{grid-column:1/-1;text-align:center}.hero-scene-footer .stone-facts{gap:27px}.ring-section{gap:25px;padding-top:65px;padding-bottom:60px}.ring-visual{min-height:600px}.ring-actions{gap:15px}.ring-specs dd{font-size:16px}.drawing-first .document-part{font-size:12px;grid-template-columns:16px 1fr;gap:7px;padding:12px 8px}.drawing-first .document-part>span:last-child{display:none}.drawing-first .document-parts{gap:6px}.drawing-first .document-detail-copy h4{font-size:22px}}
@media(max-width:760px){.hero.hero-stone{padding:111px var(--pad) 25px;min-height:100svh}.hero-stone .hero-intro .eyebrow{font-size:10px;margin-bottom:17px}.hero-stone h1{font-size:clamp(35px,8.6vw,59px);line-height:1.26}.hero-stone h1 span{display:block}.hero-stone h1 span+span:before{content:none}.hero-stone .hero-description{font-size:14px;line-height:1.85;max-width:390px;margin-top:18px}.hero-stone-canvas{margin-top:5px}.hero-stone .stone-preview{height:310px;min-height:0}.hero-stone .stone-capture{width:130%;max-width:550px}.hero-stone .stone-preview-label{top:15px;font-size:9px}.stone-view-actions{bottom:14px;gap:15px}.hero-stone .stone-modes button{font-size:11px;min-height:39px;padding:8px 13px}.hero-stone #stone-open{font-size:11px}.hero-scene-footer{grid-template-columns:1fr;gap:22px;padding-top:23px}.hero-scene-footer .stone-facts{justify-content:center;gap:48px;text-align:center}.hero-scene-footer .stone-facts strong{font-size:26px}.hero-scene-footer .stone-facts span{font-size:10px}.hero-source-note{margin-top:-9px;font-size:10px}.ring-section{grid-template-columns:1fr;gap:0;padding:70px var(--pad) 34px;min-height:0}.ring-copy{padding:0}.ring-copy .eyebrow{font-size:10px;margin-bottom:23px}.ring-copy h2{font-size:clamp(32px,8vw,46px)}.ring-description{font-size:15px;max-width:430px;margin-top:23px}.ring-specs{margin-top:26px;max-width:none}.ring-specs>div{padding:13px 0}.ring-specs dd{font-size:16px}.ring-specs dt{font-size:12px}.ring-actions{margin-top:23px;gap:20px}.ring-actions .button{font-size:13px;min-width:200px}.ring-visual{min-height:430px;margin-top:8px}.ring-visual-caption{left:0;right:0;font-size:9px}.ring-visual-caption>span:last-child{font-size:10px}.drawing-first{padding:73px var(--pad) 37px}.drawing-first .workflow-tabs{margin-top:29px}.drawing-first .workflow-heading>p{font-size:15px;line-height:1.85}.drawing-first .output-panel .case-brief{padding:20px 16px 0;gap:17px 12px}.drawing-first .output-panel .case-brief .step-label{font-size:9px;letter-spacing:.03em}.drawing-first .output-panel .case-brief>.text-button{font-size:11px;max-width:124px;line-height:1.7}.drawing-first .document-parts{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}.drawing-first .document-part{font-size:11px;min-height:43px;grid-template-columns:14px 1fr;gap:5px;padding:10px 7px}.drawing-first .proposal-inspector{padding:20px 16px 24px}.drawing-first .inspector-chrome{font-size:9px;letter-spacing:.05em}.drawing-first .document-detail-visual{padding:20px 0;min-height:225px}.drawing-first .document-detail-copy{grid-template-columns:1fr;gap:13px;padding-top:20px}.drawing-first .document-detail-copy h4{font-size:23px}.drawing-first .document-detail-copy p{font-size:14px}.drawing-first .next-step{font-size:12px;gap:9px}#capabilities{padding-top:77px;padding-bottom:77px}}
@media(max-width:360px){.hero.hero-stone{padding-top:105px}.hero-stone h1{font-size:34px}.hero-stone .stone-preview{height:285px}.hero-scene-footer .stone-facts{gap:39px}.ring-visual{min-height:400px}.ring-actions{gap:16px}.ring-actions .button{min-width:190px}.drawing-first .document-part{font-size:10px}.drawing-first .document-part>span:first-child{font-size:9px}.ring-visual-caption{font-size:8px}}

/* English first, with Korean and Japanese available throughout the page. */
.language-select{font:12px var(--sans);color:#e8e8e8;color-scheme:dark;background:#161616;border:1px solid #ffffff29;border-radius:3px;min-height:40px;width:108px;padding:8px 7px;cursor:pointer;touch-action:manipulation}
.language-select:focus-visible{outline:2px solid #a7a7a7;outline-offset:4px}
.language-select option{background:#161616;color:#ffffff}
.header-contact{font-family:var(--sans);white-space:nowrap}
.header-contact .contact-label{padding:0}
.contact-main{font-family:var(--sans)}
.contact-main .contact-label{font:inherit}
.hero-deliverables{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 24px;margin-top:20px;color:#d8d8d8;font-size:12px;letter-spacing:.025em}
.hero-deliverables>span{border-bottom:1px solid #ffffff30;padding-bottom:5px}
.output-formats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:34px;margin-top:44px;scroll-margin-top:32px}
.output-format{min-width:0;padding:25px 0 6px;border-top:1px solid #c2c2c2}
.output-format .file-format{font:400 clamp(33px,3.3vw,49px)/1.1 var(--sans);letter-spacing:-.04em;color:#292929;margin-bottom:20px}
.output-format h3{font-size:19px;line-height:1.45;margin-bottom:12px;letter-spacing:-.025em}
.output-format>p:last-child{font-size:14px;color:#757575;line-height:1.85;max-width:330px}
html[lang=ja] p,html[lang=ja] h1,html[lang=ja] h2,html[lang=ja] h3,html[lang=ja] h4{word-break:normal;line-break:strict;overflow-wrap:anywhere}
html[lang=ja] h1,html[lang=ja] h2{letter-spacing:-.035em}
html[lang=ja] .hero-stone .stone-modes button{padding:8px 10px}
@media(max-width:1100px){.desktop-nav{gap:19px}.header-actions{gap:18px}.output-formats{gap:24px}.output-format h3{font-size:18px}}
@media(max-width:760px){.header-actions{gap:12px}.language-select{width:94px;font-size:11px;min-height:38px;padding:7px 5px}.site-header .wordmark{font-size:16px}.header-contact{font-size:11px}.hero-deliverables{font-size:11px;gap:10px 20px;margin-top:18px}.output-formats{grid-template-columns:1fr;gap:0;margin-top:30px}.output-format{display:grid;grid-template-columns:100px 1fr;gap:10px 19px;padding:24px 0}.output-format .file-format{grid-column:1;grid-row:1/3;font-size:27px;line-height:1.3;margin:0;letter-spacing:-.03em}.output-format h3{grid-column:2;margin:0;font-size:18px}.output-format>p:last-child{grid-column:2;font-size:13px;max-width:none}.output-format:last-child{border-bottom:1px solid #c2c2c2}.output-format:last-child .file-format{font-size:17px;line-height:1.8;letter-spacing:-.025em}.drawing-first .workflow-tab{min-width:0;font-size:12px;gap:10px}.drawing-first .workflow-tab>span:last-child{overflow-wrap:anywhere}.drawing-first .workflow-status{align-items:flex-start}}
@media(max-width:430px){.header-contact{display:none}.header-actions{gap:15px}.language-select{width:100px}.site-header .wordmark{font-size:17px}.hero-stone .stone-view-actions{flex-wrap:wrap;gap:7px 12px}.hero-stone #stone-open{margin-left:auto}html[lang=ja] .hero-stone #stone-open{font-size:10px}.output-format{grid-template-columns:85px 1fr;gap:9px 16px}.output-format .file-format{font-size:24px}.output-format h3{font-size:17px}.output-format>p:last-child{font-size:13px}}

/* Monochrome product presentation: clear scale, paired actions, and device-led applications. */
:root{--paper:#ffffff;--ink:#171717;--muted:#666666;--line:#dddddd}
.section-light,.company-section,.contact-section{background:#ffffff}
.drawing-first{background:#f3f3f3}
.drawing-first .output-panel,.drawing-first .output-panel .case-brief,.drawing-first .proposal-inspector{background:#ffffff}
.drawing-first .document-part[aria-pressed=true]{background:#eeeeee;border-color:#222222}
.hero-stone h1{font-size:clamp(38px,4.3vw,64px);font-weight:400;letter-spacing:.025em;line-height:1.14}
.hero-stone h1 span{display:block}
.hero-stone h1 span+span:before{content:none}
.hero-stone .hero-description{max-width:710px;color:#bcbcbc}
.hero-stone .hero-intro .hero-actions{margin-top:25px;gap:12px}
.hero-intro .button{min-width:218px;min-height:45px;padding:12px 24px}
.hero-stone-canvas{margin-top:12px}
.hero-scene-footer{grid-template-columns:1fr auto;gap:24px}
.hero-scene-footer .stone-facts{gap:50px}
.hero-scene-footer .hero-source-note{grid-column:auto}
.button{border-radius:2px;box-shadow:none;font-size:13px;transition:background .22s,color .22s,border-color .22s;letter-spacing:.015em}
.button:hover,.button:active{transform:none}
.button-light:hover{background:#d9d9d9;border-color:#d9d9d9}
.button-outline:hover{background:#ffffff;color:#111111;border-color:#ffffff}
.button-dark{background:#141414;color:#ffffff;border:1px solid #141414}
.button-dark:hover{background:#3d3d3d;border-color:#3d3d3d}
.desktop-nav a{position:relative}
.desktop-nav a:after{content:'';position:absolute;left:0;right:0;bottom:-7px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .22s}
.desktop-nav a:hover:after,.desktop-nav a:focus-visible:after{transform:scaleX(1)}
button:focus-visible,a:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline-color:#777777}
.device-showcase{margin-top:110px;padding-top:75px;border-top:1px solid #dddddd}
.device-showcase .subsection-heading{max-width:850px}
.device-showcase .subsection-heading h3{white-space:pre-line;letter-spacing:-.02em;font-size:clamp(32px,3.5vw,51px);line-height:1.18}
.device-showcase .subsection-heading>p:last-child{color:#707070;max-width:620px}





.level-stage{margin-top:18px}
.level-panel.level-card{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.35fr);gap:44px;align-items:center;min-height:610px;padding:22px 0 0;border:0;animation:panel-in .3s ease both}
.level-copy{min-width:0;padding:20px 0 25px}
.level-copy .level-card-top{margin:0 0 23px;justify-content:flex-start;gap:17px;flex-wrap:wrap}
.level-copy .level-number{font:13px Arial,sans-serif;letter-spacing:.13em;color:#606060}
.level-copy .level-status{border-color:#d4d4d4;background:#f7f7f7;color:#707070;font-size:11px;text-align:left;padding:4px 8px;max-width:none}
.level-copy .level-name{display:block;font-size:10px;letter-spacing:.12em;color:#8a8a8a;margin:0 0 15px}
.level-copy h4{font-size:clamp(29px,2.8vw,43px);line-height:1.25;letter-spacing:-.035em;white-space:pre-line;margin:0 0 21px}
.level-copy>p{font-size:15px;line-height:1.85;color:#6b6b6b;max-width:450px}
.level-features{padding:0;margin:27px 0 22px;list-style:none;max-width:430px}
.level-features li{padding:11px 0;border-top:1px solid #e0e0e0;color:#434343;font-size:13px;line-height:1.65}
.level-copy>small{display:block;color:#858585;font-size:11px;line-height:1.7}
.level-actions{display:flex;align-items:center;flex-wrap:wrap;gap:13px 22px;margin-top:25px}
.level-actions .button{min-width:183px;min-height:45px;font-size:12px;padding:12px 21px}
.level-actions .text-button{font-size:12px;color:#666666}
.level-media{margin:0;min-width:0;align-self:center;position:relative;text-align:center;background:#ffffff}
.level-device-image{display:block;width:100%;height:auto;max-height:570px;object-fit:contain;border:0;margin:auto}
.level-media-l1 .level-device-image{height:610px;max-height:none}
.level-media figcaption{font-size:11px;line-height:1.6;letter-spacing:.1em;color:#666666;margin-top:12px}
.device-showcase>.evidence-note{max-width:870px;color:#737373;font-size:12px;margin-top:28px;line-height:1.8}
.dialog-content.device-content{background:#ffffff}
.dialog-content.device-content:not(.zoomed)>img{width:auto;max-width:100%;max-height:100%;height:auto;margin:auto}
.dialog-content.device-content.zoomed>img{width:1600px;height:auto;max-width:none;max-height:none}
.brand-section{border-top-color:#dedede}
@media(min-width:1600px){.level-panel.level-card{min-height:700px;gap:66px}.level-media-l1 .level-device-image{height:670px}.level-device-image{max-height:635px}.level-copy>p{font-size:16px}.level-copy h4{font-size:47px}}
@media(max-width:1100px){.hero-stone h1{font-size:47px}.hero-stone h1 span{display:block}.hero-stone h1 span+span:before{content:none}.level-panel.level-card{gap:27px;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);min-height:580px}.level-media-l1 .level-device-image{height:570px}.level-copy h4{font-size:34px}.level-copy>p{font-size:14px}.level-actions{gap:14px}.level-actions .button{min-width:170px}}
@media(max-width:760px){.hero-stone h1{font-size:clamp(29px,7.9vw,49px);line-height:1.2;letter-spacing:.015em}.hero-stone .hero-description{font-size:14px;max-width:440px}.hero-stone .hero-intro .hero-actions{margin-top:22px;flex-wrap:wrap;gap:10px}.hero-intro .button{font-size:12px;min-width:145px;padding:11px 18px;min-height:44px}.hero-stone-canvas{margin-top:12px}.hero-scene-footer{grid-template-columns:1fr;gap:22px}.hero-scene-footer .stone-facts{gap:46px}.hero-scene-footer .hero-source-note{grid-column:1;margin:0;text-align:center}.device-showcase{margin-top:70px;padding-top:46px}.device-showcase .subsection-heading h3{font-size:clamp(30px,7.7vw,43px);line-height:1.22}.level-panel.level-card{grid-template-columns:1fr;gap:4px;min-height:0;padding:0}.level-media{grid-row:1;margin-top:22px}.level-device-image{max-height:400px;width:100%}.level-media-l1 .level-device-image{height:420px}.level-media figcaption{font-size:10px;margin-top:5px}.level-copy{padding:23px 0 7px}.level-copy .level-card-top{margin-bottom:19px}.level-copy h4{font-size:33px;margin-bottom:17px}.level-copy>p{font-size:15px;max-width:100%}.level-features{max-width:none;margin:22px 0 18px}.level-features li{font-size:13px;padding:10px 0}.level-copy>small{font-size:11px}.level-actions{margin-top:22px;gap:17px}.level-actions .button{font-size:12px;min-width:179px}.level-copy .level-status{font-size:10px}.device-showcase>.evidence-note{font-size:11px;margin-top:23px}.dialog-content.device-content.zoomed>img{width:1250px}}
@media(max-width:360px){.hero-stone h1{font-size:27px}.hero-intro .button{min-width:133px;font-size:11px;padding:10px 13px}.level-media-l1 .level-device-image{height:385px}.level-copy h4{font-size:29px}.level-actions .button{min-width:165px}}

/* Continuous L1-L3 story and separate product, design and rendering imagery. */
.hero-stone,.ring-section{background:#000000}
.hero-stone .stone-capture{position:absolute;inset:0;width:100%;max-width:none;aspect-ratio:auto;transform:none}
.hero-stone .stone-capture img{position:static;width:100%;max-width:100%;height:100%;object-fit:contain;transform:none}
#stone-preview[data-mode=studio]{background:#000000}
#stone-preview[data-mode=lightbox]{background:#eeeeee}
.ring-product-image{position:absolute;inset:0;width:100%;height:100%;max-width:100%;object-fit:contain}
.ring-visual-caption{z-index:1;bottom:5px}
.level-stage{margin-top:38px}
.level-panel.level-card.level-story{min-height:640px;padding:52px 0;gap:52px;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);animation:none}
.level-story+.level-story{border-top:1px solid #dedede}
.level-story .level-number{font-size:42px;letter-spacing:-.045em;line-height:1}
.level-story .level-card-top{margin-bottom:26px}
.level-story .level-copy h4{font-size:clamp(32px,3.1vw,46px);line-height:1.2}
.level-story .level-copy{padding:15px 0}
.level-story .level-media{grid-row:auto}
.level-story .level-device-image{max-height:570px}
.level-story .level-media-l1 .level-device-image{height:580px;max-height:580px}
.device-showcase>.evidence-note{padding-top:24px;border-top:1px solid #dedede}
.studio-board{width:100%;margin:0;overflow:hidden;background:#f2f2f2;border:1px solid #dedede;color:#171717}
.board-heading{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:16px 23px;background:#ffffff;border-bottom:1px solid #dedede;font:10px/1.5 Arial,sans-serif;letter-spacing:.13em;color:#707070}
.board-heading>span:first-child{font-size:11px;letter-spacing:.28em;color:#181818}
.studio-viewport{width:100%;aspect-ratio:3/2;background:#f2f2f2;overflow:hidden}
.studio-viewport img{width:100%;height:100%;object-fit:contain}
.studio-readouts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:20px 23px;border-top:1px solid #dddddd;background:#ffffff;gap:20px}
.studio-readouts>div{display:flex;flex-direction:column;gap:7px}
.studio-readouts span{font-size:9px;letter-spacing:.1em;color:#777777}
.studio-readouts strong{font-size:13px;font-weight:400;line-height:1.5}
.studio-board figcaption{padding:13px 23px;border-top:1px solid #e4e4e4;background:#ffffff;color:#757575;font-size:11px;line-height:1.7}
.workflow-panel>.studio-board{align-self:center;border:0;border-left:1px solid #e0e0e0}
.drawing-first .document-detail-visual{padding:26px 0;min-height:0}
.drawing-first .document-detail-visual>.studio-board{max-width:100%;margin:0}
.drawing-first .document-detail-visual .studio-viewport{aspect-ratio:2/1}
.drawing-view-labels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;grid-column:1/-1;margin-top:6px}
.drawing-view-labels span{padding:13px 5px;border-top:1px solid #dddddd;font-size:11px;line-height:1.6;color:#6b6b6b}
.document-detail-copy>.text-button{justify-self:start;align-self:start;margin-top:0}
.brief-board,.spec-sheet,.stone-measurements,.production-sheet{background:#ffffff;width:100%;color:#1c1c1c;border:1px solid #dedede}
.brief-board{align-self:stretch;display:flex;flex-direction:column;border:0;border-left:1px solid #dedede}
.brief-weight{padding:35px 30px 25px}
.brief-weight strong{display:block;font:clamp(58px,6vw,86px)/1.15 Arial,sans-serif;letter-spacing:-.065em}
.brief-weight strong span{font-size:22px;letter-spacing:0;margin-left:8px;color:#808080}
.brief-weight p{color:#777777;font-size:12px;margin-top:10px}
.brief-condition{margin:0 30px;padding:15px 0;border-top:1px solid #e4e4e4;display:flex;justify-content:space-between;gap:18px;align-items:center}
.brief-condition>span{font-size:10px;color:#797979;letter-spacing:.08em}
.brief-condition strong{font-size:14px;font-weight:400;text-align:right}
.brief-condition small{font-size:11px}
.board-note{padding:18px 23px!important;font-size:11px!important;color:#757575!important;line-height:1.8!important;margin:0!important}
.brief-board>.board-note{margin-top:auto!important;padding:24px 30px!important}
.spec-sheet dl{padding:0 28px;margin:0}
.spec-sheet dl>div{display:flex;justify-content:space-between;gap:24px;padding:19px 0;border-bottom:1px solid #e4e4e4;align-items:center}
.spec-sheet dt{font-size:13px;color:#777777}
.spec-sheet dd{font-size:15px;margin:0;text-align:right}
.measurement-cut{padding:28px 28px 0;font-size:12px;letter-spacing:.12em}
.measurement-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;padding:35px 28px}
.measurement-grid>div{display:flex;flex-direction:column}
.measurement-grid span{font-size:12px;color:#747474;margin-bottom:14px}
.measurement-grid strong{font:clamp(32px,3.3vw,48px)/1.1 Arial,sans-serif;letter-spacing:-.04em}
.measurement-grid small{font-size:12px;color:#777777;margin-top:9px}
.production-sheet ol{list-style:none;counter-reset:production;margin:0;padding:10px 28px 23px}
.production-sheet li{counter-increment:production;position:relative;padding:22px 0 22px 36px;border-bottom:1px solid #e4e4e4}
.production-sheet li:before{content:'0' counter(production);position:absolute;left:0;top:24px;font:11px Arial,sans-serif;color:#909090}
.production-sheet li strong{font-size:15px;font-weight:400}
.production-sheet li p{font-size:12px;line-height:1.8;color:#777777;margin-top:7px}
.evidence-numbers .value-item{border-top:1px solid #cccccc;padding-top:24px}
.evidence-numbers .value-metric{margin-top:0}
.evidence-numbers .value-number{font-size:64px;line-height:1.1;letter-spacing:-.045em}
@media(min-width:1600px){.level-panel.level-card.level-story{gap:70px;min-height:700px}.level-story .level-media-l1 .level-device-image{height:630px;max-height:630px}}
@media(max-width:1100px){.level-panel.level-card.level-story{gap:30px;min-height:580px}.level-story .level-media-l1 .level-device-image{height:540px;max-height:540px}}
@media(max-width:760px){
 .hero-stone .stone-capture{inset:0;width:100%;max-width:none}
 .ring-product-image{width:100%;height:100%;object-fit:contain}
 .level-stage{margin-top:20px}
 .level-panel.level-card.level-story{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;padding:38px 0 46px;min-height:0}
 .level-story .level-copy{display:contents}
 .level-story .level-card-top{grid-row:1;margin:0 0 2px}
 .level-story .level-number{font-size:35px}
 .level-story .level-name{grid-row:2;margin:8px 0 0}
 .level-story .level-copy h4{grid-row:3;font-size:34px;margin:0}
 .level-story .level-media{grid-row:4;margin:8px 0 16px}
 .level-story .level-copy>p{grid-row:5;margin:0}
 .level-story .level-features{grid-row:6;margin:8px 0}
 .level-story .level-copy>small{grid-row:7;margin:0}
 .level-story .level-actions{grid-row:8;margin-top:10px}
 .level-story .level-media-l1 .level-device-image{height:420px;max-height:420px}
 .level-story .level-device-image{max-height:350px;width:100%;object-fit:contain}
 .board-heading{padding:14px 16px;font-size:9px;letter-spacing:.08em}
 .workflow-panel>.studio-board{border-left:0;border-top:1px solid #dedede}
 .studio-readouts{padding:16px;gap:12px}
 .studio-readouts strong{font-size:12px}
 .studio-readouts span{font-size:8px}
 .studio-board figcaption{padding:12px 16px;font-size:10px}
 .drawing-first .document-detail-visual .studio-viewport{aspect-ratio:3/2}
 .drawing-view-labels{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}
 .drawing-view-labels span{font-size:10px;padding:12px 0}
 .brief-board{border-left:0;border-top:1px solid #dedede}
 .brief-weight{padding:28px 22px 24px}
 .brief-condition{margin:0 22px}
 .brief-condition strong{font-size:12px}
 .brief-board>.board-note{padding:20px 22px!important}
 .spec-sheet dl{padding:0 18px}
 .spec-sheet dd{font-size:13px}
 .spec-sheet dt{font-size:12px}
 .measurement-cut{padding:24px 18px 0;font-size:11px}
 .measurement-grid{padding:27px 18px;gap:12px}
 .measurement-grid strong{font-size:32px}
 .measurement-grid span{font-size:11px}
 .production-sheet ol{padding:4px 18px 18px}
 .evidence-numbers .value-item{padding-top:25px}
 .evidence-numbers .value-number{font-size:56px}
}
@media(max-width:360px){.level-story .level-media-l1 .level-device-image{height:380px;max-height:380px}.level-story .level-copy h4{font-size:30px}.measurement-grid strong{font-size:28px}.studio-readouts{gap:7px;padding:14px 12px}}

/* QA: keep controls readable and images inside the unzoomed viewer. */
.image-dialog[open]{display:flex;flex-direction:column}
.dialog-toolbar{height:auto;min-height:66px;flex:0 0 auto;gap:16px}
.dialog-toolbar h2{min-width:0;flex:1;overflow-wrap:anywhere}
.dialog-toolbar>div{flex:0 0 auto;gap:12px}
.dialog-content{height:auto;min-height:0;flex:1}
.dialog-content:not(.zoomed):not(.proposal-content){justify-content:center}
.dialog-content:not(.zoomed):not(.proposal-content)>img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;margin:auto}
.dialog-content.proposal-content{align-items:flex-start}
.dialog-zoom,.dialog-close,.copy-email,.level-actions .text-button{min-width:44px;min-height:44px}
.language-select{font-size:14px;min-height:44px}
.copy-email,.level-actions .button,.level-actions .text-button{font-size:14px}
.level-actions .button{min-height:48px}
.copy-feedback{flex-basis:100%;font:13px/1.75 var(--sans);color:#595959;text-align:center;overflow-wrap:anywhere}
.copy-feedback:empty{display:none}
.email-line>a{overflow-wrap:anywhere;min-width:0}
.drawing-first .document-part{font-size:14px;min-height:48px;line-height:1.5;color:#595959}
.drawing-first .document-part>span:first-child{font-size:12px;color:#777777}
.drawing-first .document-part>span:nth-child(2){min-width:0;overflow-wrap:anywhere}
.drawing-first .workflow-tab{font-size:14px}
.drawing-first .document-detail-copy p{font-size:16px}
.studio-readouts span{font-size:12px}
.studio-readouts strong{font-size:14px}
.studio-board figcaption{font-size:12px}
.board-heading,.board-heading>span:first-child{font-size:12px}
.drawing-view-labels span{font-size:12px}
button[data-stone-mode]{font-size:14px;min-height:44px}
@media(min-width:761px){.mobile-menu{display:none}}
@media(max-width:760px){
 .dialog-toolbar{min-height:60px;padding:12px;gap:12px}
 .dialog-toolbar h2{font-size:14px;line-height:1.5}
 .dialog-toolbar>div{gap:8px}
 .dialog-zoom{font-size:14px;padding:8px}
 .dialog-content{height:auto}
 .menu-toggle{width:44px;min-width:44px;padding:12px 10px}
 .language-select{font-size:16px;width:100px;padding:7px 5px}
 .drawing-first .workflow-tab{flex-direction:column;align-items:flex-start;gap:9px;min-height:82px;font-size:14px;padding:14px 8px 14px 0}
 .drawing-first .workflow-tab>span:first-child{font-size:20px}
 .drawing-first .document-parts{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
 .drawing-first .document-part{grid-template-columns:20px minmax(0,1fr);font-size:14px;gap:8px;padding:12px 10px;min-height:48px}
 .studio-readouts{gap:10px;padding:16px 12px}
 .studio-readouts span{font-size:12px;letter-spacing:0}
 .studio-readouts strong{font-size:13px}
 .board-heading{letter-spacing:.06em}
 .level-actions .button,.level-actions .text-button{font-size:14px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.motion-enabled .reveal:not(.visible){opacity:1;transform:none}}

/* 7. 이식(2026-10-12): 보기는 그대로, 터치 대상 44px·실제 자산·확인 중 표시·영상 */
.site-header .wordmark,.site-footer .wordmark,.site-footer>a:last-child,.email-line>a{display:inline-flex;align-items:center;min-height:44px;margin-top:-11px;margin-bottom:-11px}
@media (min-width:431px){.header-contact{display:inline-flex;align-items:center;min-height:44px;margin-top:-11px;margin-bottom:-11px}}
.desktop-nav a{display:inline-flex;align-items:center;min-height:44px;margin-top:-11px;margin-bottom:-11px}
.text-button{display:inline-flex;align-items:center;min-height:44px;line-height:1.6}
.stone-modes button,.hero-stone .stone-modes button,.stone-preview .stone-modes button{min-height:44px;height:auto;box-sizing:border-box}
.next-step{min-height:44px;align-items:center}
.contact-topics a{display:inline-flex;align-items:center;min-height:44px}
.text-button.is-pending{border-bottom-style:dashed;color:var(--muted);cursor:default}
.case-flag:empty{display:none}
.case-flag{font-size:.72em;color:var(--muted);letter-spacing:.04em;white-space:nowrap}
.heritage-note{display:block;margin-top:8px;font-size:12px;color:var(--muted);line-height:1.6}
.studio-viewport video{display:block;width:100%;height:100%;object-fit:cover}
.brand-photo--pending{display:flex;align-items:center;justify-content:center;width:100%;background:#efefef;color:var(--muted);font-size:12px;letter-spacing:.08em}
/* BEARING 사진은 세로가 길어 위아래가 잘린다 — 머리가 잘리지 않게 위쪽에 맞춘다(2026-10-13) */
.brand-photo[src*="brand-bearing"]{object-position:50% 0}
.stone-preview[data-mode=lightbox]{background:#e6e6e6}
.motion-enabled .reveal:not(.visible){opacity:1;transform:translateY(8px)}
@media (max-width:760px){.image-dialog::backdrop{backdrop-filter:none;-webkit-backdrop-filter:none}}
html[lang=ja]{--sans:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",Arial,sans-serif}

/* 8. 계산기(2026-10-13): 조건 입력 탭의 브리프 보드 안. 보드와 같은 흑백·소문자 라벨 */
.brief-calc{margin:22px 30px 0;padding-top:22px;border-top:1px solid #e4e4e4}
.calc-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.calc-head>span:first-child{font:500 10px/1.4 Arial,sans-serif;letter-spacing:.14em;color:#8a8a8a}
.calc-tag{font-size:11px;color:var(--muted);letter-spacing:.02em}
.calc-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 14px}
.calc-field{display:flex;flex-direction:column;gap:6px;position:relative;min-width:0}
.calc-field--wide{grid-column:1/-1}
.calc-field>span{font:500 10px/1.4 Arial,sans-serif;letter-spacing:.12em;color:#8a8a8a;text-transform:uppercase}
.calc-field input,.calc-field select{width:100%;min-height:44px;border:1px solid var(--line);border-radius:2px;background:#fff;padding:0 12px;font:16px/1.4 var(--sans);color:var(--ink);font-variant-numeric:tabular-nums;-webkit-appearance:none;appearance:none}
.calc-field select{padding-right:28px;background-image:linear-gradient(45deg,transparent 50%,#555 50%),linear-gradient(135deg,#555 50%,transparent 50%);background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.calc-field input:focus-visible,.calc-field select:focus-visible{outline:2px solid #111;outline-offset:1px}
.calc-field>small{position:absolute;right:12px;bottom:14px;font-size:11px;color:var(--muted);pointer-events:none}
.calc-result{margin-top:18px;display:grid;gap:12px}
.calc-carat{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}
.calc-carat strong{font-size:34px;line-height:1.1;font-weight:400;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.calc-carat>span{font-size:14px;color:var(--muted)}
.calc-carat small{flex-basis:100%;font-size:11px;color:var(--muted);line-height:1.6}
.calc-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0}
.calc-stats>div{border-top:1px solid var(--line);padding-top:8px}
.calc-stats dt{font:500 10px/1.4 Arial,sans-serif;letter-spacing:.12em;color:#8a8a8a;text-transform:uppercase}
.calc-stats dd{margin:4px 0 0;font-size:15px;font-variant-numeric:tabular-nums}
.calc-mesh{font-size:12px;color:#444;line-height:1.6;margin:0}
.calc-warn{font-size:12px;color:#8a3b2b;line-height:1.6;margin:0;min-height:1.2em}
.calc-warn:empty{display:none}
#carat-calc[data-state=error] .calc-carat strong{color:#8a8a8a}
@media (max-width:760px){.calc-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.calc-stats{grid-template-columns:repeat(3,minmax(0,1fr))}.calc-carat strong{font-size:30px}}

/* 9. 반지 360° 드래그(2026-10-13): 탭 2 설계실 뷰포트. 영상이 돌다가 손을 대면 프레임 캔버스로 */
.ring360-host{position:relative;touch-action:pan-y;cursor:grab;user-select:none;-webkit-user-select:none}
.ring360-host[data-dragging]{cursor:grabbing}
.ring360-host:focus-visible{outline:2px solid #111;outline-offset:2px}
.ring360-canvas{position:absolute;inset:0;width:100%;height:100%;display:none}
.ring360-host[data-mode=frames] .ring360-canvas{display:block}
.ring360-host[data-mode=frames] video{visibility:hidden}
.ring360-hint{color:var(--ink)}

/* 10. 첫 화면 다이아몬드(2026-10-13): 평소에는 엔진 영상, 손을 대면 그 각도에서 실시간 3D(캔버스), 손을 떼면 다시 영상.
   캔버스는 투명 바탕(카드 바탕색이 곧 무대색)이라, 3D가 보일 때 뒤의 포스터·영상이 비치면 스톤이 두 개로 보인다 → 그때는 둘 다 감춘다 */
.stone-capture{position:relative}
.stone-canvas{position:absolute;inset:0;width:100%!important;height:100%!important;opacity:0;transition:opacity .2s ease;touch-action:pan-y;cursor:grab;outline:none}
/* 3D로 넘어갈 때는 바로(영상과 같은 장면이라 겹쳐 띄울 필요가 없다), 영상으로 돌아갈 때만 0.2초에 걸쳐 걷힌다 */
.stone-capture[data-stone-mode=refract] .stone-canvas,.stone-capture[data-stone-mode=mirror] .stone-canvas{opacity:1;transition:none}
.stone-capture[data-stone-mode=refract] img,.stone-capture[data-stone-mode=mirror] img,.stone-capture[data-video=ok] img{visibility:hidden}
.stone-capture[data-dragging] .stone-canvas{cursor:grabbing}
.stone-canvas:focus-visible{outline:2px solid #fff;outline-offset:-3px}
.stone-preview[data-mode=lightbox] .stone-canvas:focus-visible{outline-color:#111}
.stone-video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:none}
.stone-capture[data-stone-mode=video] .stone-video{display:block}
/* 3D가 보이는 동안 영상은 자리는 지키되 보이지 않게(돌아올 장면을 미리 맞춰 두려고 display:none 대신) */
.stone-capture[data-stone-mode=refract] .stone-video,.stone-capture[data-stone-mode=mirror] .stone-video{display:block;visibility:hidden}
.stone-hint{color:#d9d9d9}
@media (prefers-reduced-motion:reduce){.stone-canvas{transition:none}}
/* 10-1. 스톤 무대 칸을 미리보기 전체로(GPT는 AI 그림을 227%로 확대해 잘랐음). 포스터·영상은 contain.
   스튜디오 카드 바탕은 GPT대로 순검정(#000)이다. 엔진 무대색은 #0d0d0d 라서 포스터·영상을 그대로 올리면 16:10 네모 띠가 보인다
   → tools/make-stone-media.sh 가 배경 레벨만 0으로 맞춰 만든다(스톤 값은 그대로) */
.hero-stone .stone-capture,.stone-capture{position:absolute;inset:0;top:0;left:0;width:100%;height:100%;aspect-ratio:auto;transform:none}
.stone-capture img{position:absolute;inset:0;left:0;top:0;width:100%;height:100%;max-width:100%;object-fit:contain;transform:none}
/* 10-2. 라이트박스 바탕을 포스터·무대와 같은 #e6e6e6 으로(GPT의 #eeeeee 보다 뒤에서 이김) */
.hero-stone .stone-preview[data-mode=lightbox],.stone-preview[data-mode=lightbox]{background:#e6e6e6}
#stone-preview[data-mode=lightbox]{background:#e6e6e6} /* GPT의 #stone-preview 규칙(id 선택자)보다 뒤 */
/* 10-2b. 포스터·영상의 16:10 틀 둘레를 카드 바탕으로 풀어 준다(2026-10-13). 틀에 내접하는 타원의 78%까지는 그대로, 거기서 틀 끝까지 서서히 투명.
   영상은 기기마다 배경을 한두 단계 다르게 그린다 — 표준 범위(8비트)로는 230을 정확히 적을 수 없어(229.4 또는 230.6) 카드(230) 옆에서 231로 나온다.
   곧은 경계가 없으면 그 차이는 보이지 않고, 어떤 기기가 색을 크게 틀리게 읽어도(갤럭시 249 사건) 네모가 아니라 옅은 빛 번짐으로 끝난다.
   스톤·그림자는 타원의 72% 안에만 있다(영상 60장 측정). 틀 크기는 js/stone/index.js 가 --stone-frame-w/h 로 알려 준다(없으면 칸 전체 기준) */
.stone-capture img,.stone-video{-webkit-mask-image:radial-gradient(ellipse closest-side,#000 78%,transparent);mask-image:radial-gradient(ellipse closest-side,#000 78%,transparent);-webkit-mask-size:var(--stone-frame-w,100%) var(--stone-frame-h,100%);mask-size:var(--stone-frame-w,100%) var(--stone-frame-h,100%);-webkit-mask-position:center;mask-position:center;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
/* 10-3. 회전 버튼은 카드 오른쪽 위(라벨과 같은 줄). 아래 줄은 GPT 원본대로 무대 전환 + 크게 보기 둘만 둔다 —
   셋을 한 줄에 두면 좁은 화면 라이트박스에서 줄이 넘어가 스톤을 가렸다. 글자는 '이미지 크게 보기'와 같은 크기·색(라이트박스에서 흰 글자가 안 보였다) */
.stone-spin[hidden]{display:none}
.stone-preview .stone-spin{position:absolute;top:10px;right:0;margin:0;color:#aeaeae;font-size:12px;border-bottom-color:#4f4f4f}
.stone-preview[data-mode=lightbox] .stone-spin{right:22px;color:#494949}
@media(max-width:760px){.stone-preview .stone-spin{top:-1px}}
/* 아주 좁은 화면(접는 폰 바깥 화면 등): 영문·일문 라벨이 길어 같은 줄에 못 들어간다 → 라벨 아랫줄로 */
@media(max-width:372px){.stone-preview .stone-spin{top:26px}}