:root{--paper:#f2eddf;--paper-bright:#fffdf6;--ink:#17211d;--muted:#5f655f;--line:#b9b4a8;--line-dark:#676d66;--orange:#e85b38;--orange-dark:#b93d20;--blue:#214ddd;--green:#23694e;--yellow:#f4c84a;--shadow:7px 7px 0 #17211d24;--radius:2px;color:var(--ink);background:var(--paper);font-synthesis:none;font-family:Public Sans Variable,Apple SD Gothic Neo,Hiragino Sans,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background-color:var(--paper);background-image:linear-gradient(#17211d09 1px,#0000 1px),linear-gradient(90deg,#17211d09 1px,#0000 1px);background-size:28px 28px;min-width:320px;margin:0;font-size:16px;line-height:1.6}a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}button,input,select{font:inherit}button,summary,select,input[type=range],input[type=color]{cursor:pointer}button:disabled,select:disabled,input:disabled{cursor:not-allowed;opacity:.58}img{max-width:100%;display:block}.container{width:min(1180px,100% - 40px);margin-inline:auto}.narrow{width:min(820px,100% - 40px);margin-inline:auto}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:1000;background:var(--ink);color:#fff;padding:9px 14px;position:fixed;top:10px;left:10px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.site-header{z-index:50;border-bottom:1px solid var(--ink);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#f2eddff5;position:sticky;top:0}.header-inner{align-items:center;gap:28px;min-height:68px;display:flex}.brand{letter-spacing:-.035em;align-items:center;gap:10px;font-size:1.18rem;font-weight:760;text-decoration:none;display:inline-flex}.brand-mark{grid-template-rows:repeat(2,8px);grid-template-columns:repeat(2,8px);gap:3px;width:19px;height:19px;display:grid;position:relative}.brand-mark i{border:2px solid var(--ink);display:block}.brand-mark i:first-child{border-bottom:0;border-right:0}.brand-mark i:nth-child(2){border-bottom:0;border-left:0;border-color:var(--orange)}.brand-mark i:nth-child(3){border-top:0;border-right:0;border-color:var(--blue)}.brand-mark i:nth-child(4){border-top:0;border-left:0}.desktop-nav{align-items:center;gap:26px;margin-left:auto;display:flex}.desktop-nav a{font-size:.84rem;font-weight:690;text-decoration:none}.desktop-nav a:hover{color:var(--orange-dark)}.language-menu{position:relative}.language-menu summary{border:1px solid var(--ink);background:var(--paper-bright);align-items:center;gap:8px;padding:7px 10px;font-size:.78rem;font-weight:700;list-style:none;display:flex}.language-menu summary::-webkit-details-marker{display:none}.language-code{color:var(--blue);text-transform:uppercase}.language-popover{border:1px solid var(--ink);background:var(--paper-bright);width:220px;padding:6px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:5px 5px #17211d24}.language-popover a{justify-content:space-between;padding:8px 9px;text-decoration:none;display:flex}.language-popover a:hover,.language-popover a[aria-current=page]{background:#e7e0cf}.language-popover small{color:var(--muted)}.hero{padding:clamp(64px,9vw,118px) 0 48px;overflow:hidden}.hero-grid{grid-template-columns:minmax(0,1fr) minmax(300px,.7fr);align-items:center;gap:clamp(40px,8vw,110px);display:grid}.eyebrow{color:var(--orange-dark);letter-spacing:.14em;text-transform:uppercase;align-items:center;gap:9px;margin:0 0 18px;font-size:.76rem;font-weight:800;display:inline-flex}.eyebrow:before{content:"";background:currentColor;width:28px;height:2px}h1,h2,h3,p{margin-top:0}h1,h2{letter-spacing:-.045em;font-family:Newsreader Variable,Georgia,serif;font-weight:520;line-height:.98}h1,h2,h3{text-wrap:balance}h1{max-width:870px;margin-bottom:24px;font-size:clamp(3.1rem,7.2vw,6.9rem)}h2{font-size:clamp(2.25rem,4.6vw,4.3rem)}h3{font-size:1.05rem;line-height:1.3}html:lang(ko) :where(h1,h2,h3,p,li,summary,.trust-row span,.button){word-break:keep-all;overflow-wrap:break-word}html:lang(ko) :where(h1,h2){letter-spacing:-.055em;font-family:Apple SD Gothic Neo,Noto Sans KR,sans-serif;font-weight:760;line-height:1.12}html:lang(ko) h1{font-size:clamp(2.75rem,6.5vw,5.8rem)}html:lang(ko) h2{font-size:clamp(2.1rem,4vw,3.65rem)}html:lang(ja) :where(h1,h2){font-family:Hiragino Sans,Yu Gothic,sans-serif;font-weight:700;line-height:1.16}.hero-copy{color:#3f4641;max-width:680px;font-size:clamp(1rem,1.6vw,1.2rem)}.trust-row{flex-wrap:wrap;gap:9px;margin-top:28px;display:flex}.trust-row span{border:1px solid var(--line-dark);background:#fffdf680;align-items:center;gap:7px;padding:6px 9px;font-size:.75rem;font-weight:700;display:inline-flex}.hero-specimen{min-height:280px;position:relative}.file-sheet{border:1px solid var(--ink);background:var(--paper-bright);box-shadow:var(--shadow);padding:24px;position:absolute;inset:0 10% 0 0;transform:rotate(-2deg)}.file-sheet:nth-child(2){background:#e8e1d0;inset:42px 0 -25px 17%;transform:rotate(3deg)}.file-sheet .format{font-family:Newsreader Variable,serif;font-size:clamp(4.5rem,9vw,8rem);line-height:1}.file-sheet .spec{border-top:1px solid var(--ink);letter-spacing:.1em;justify-content:space-between;padding-top:10px;font-size:.68rem;font-weight:800;display:flex}.registration-mark{border:1px solid var(--ink);background:var(--yellow);white-space:pre-line;text-align:center;border-radius:50%;place-items:center;width:70px;height:70px;font-size:.67rem;font-weight:800;display:grid;position:absolute;bottom:-12px;right:0;transform:rotate(-8deg)}.converter-wrap{padding:18px 0 clamp(74px,9vw,120px)}.converter-shell{border:1px solid var(--ink);background:var(--paper-bright);box-shadow:var(--shadow)}.format-rail{border-bottom:1px solid var(--ink);background:#e7e0d0;align-items:center;gap:20px;min-height:70px;padding:12px 20px;display:flex}.format-rail>div{align-items:baseline;gap:10px;display:flex}.format-rail span{letter-spacing:.12em;text-transform:uppercase;font-size:.66rem;font-weight:800}.format-rail strong{font-family:Newsreader Variable,serif;font-size:1.65rem;line-height:1}.format-rail span,.format-rail strong{white-space:nowrap;word-break:keep-all}.format-rail .local-stamp{border:1px solid var(--green);color:var(--green);align-items:center;gap:6px;margin-left:auto;padding:5px 7px;display:inline-flex;transform:rotate(-2deg)}.converter-grid{grid-template-columns:minmax(0,1fr) 285px;min-height:410px;display:grid}.work-area{border-right:1px solid var(--ink);min-width:0;padding:clamp(18px,4vw,34px)}.drop-zone{border:1px dashed var(--line-dark);text-align:center;background:#faf7ed;flex-direction:column;justify-content:center;align-items:center;gap:11px;min-height:250px;transition:background .16s,border-color .16s,transform .16s;display:flex}.drop-zone:hover,.drop-zone.is-dragging{border-color:var(--blue);background:#eef1fb;transform:translateY(-2px)}.drop-zone strong,.drop-zone span,.drop-zone small{display:block}.drop-zone strong{font-family:Newsreader Variable,serif;font-size:1.65rem}.drop-zone>div span{color:var(--muted);font-size:.88rem}.drop-zone small{color:var(--muted);font-size:.72rem}.drop-icon{border:1px solid var(--ink);background:var(--yellow);place-items:center;width:54px;height:54px;display:grid;transform:rotate(-3deg)}.privacy-line{align-items:center;gap:6px;color:var(--green)!important;display:flex!important}.button{border:1px solid var(--ink);border-radius:var(--radius);justify-content:center;align-items:center;gap:8px;min-height:40px;padding:8px 15px;font-size:.82rem;font-weight:750;text-decoration:none;transition:transform .14s,box-shadow .14s,background .14s;display:inline-flex!important}.button:hover:not(:disabled){transform:translate(-2px,-2px);box-shadow:3px 3px #17211d40}.button-primary{color:#fff;background:var(--orange)}.button-primary:hover:not(:disabled){background:var(--orange-dark)}.button-secondary{background:var(--paper-bright)}.button-large{min-width:210px;min-height:48px}.settings-panel{background:#eee8d9;padding:22px}.panel-heading{border-bottom:1px solid var(--line);align-items:center;gap:8px;margin-bottom:18px;padding-bottom:16px;font-size:.82rem;display:flex}.field{gap:7px;margin-bottom:18px;display:grid}.field>span:first-child{letter-spacing:.04em;justify-content:space-between;font-size:.72rem;font-weight:760;display:flex}.field select,.field input[type=number]{border:1px solid var(--line-dark);background:var(--paper-bright);border-radius:0;width:100%;height:40px;padding:0 10px}.field input[type=range]{width:100%;accent-color:var(--orange)}.field small{color:var(--muted);font-size:.67rem;line-height:1.5}.field.is-muted{opacity:.55}.inline-value{position:relative}.inline-value>span{z-index:1;color:var(--muted);position:absolute;bottom:8px;right:10px}.color-control{align-items:center;gap:10px;display:flex}.color-control input{border:1px solid var(--ink);background:0 0;width:45px;height:35px;padding:2px}.color-control code{font-size:.72rem}.queue{border-top:1px solid var(--ink);margin-top:22px}.queue-heading{justify-content:space-between;padding:12px 0 8px;font-size:.76rem;display:flex}.queue ul{margin:0;padding:0;list-style:none}.file-row{border-top:1px solid var(--line);grid-template-columns:48px minmax(0,1fr) auto auto auto;align-items:center;gap:11px;min-height:68px;padding:9px 0;display:grid}.thumbnail{background:#ddd5c4;width:48px;height:48px;overflow:hidden}.thumbnail img{object-fit:cover;width:100%;height:100%}.file-copy{min-width:0}.file-copy strong,.file-copy span{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.file-copy strong{font-size:.78rem}.file-copy span{color:var(--muted);font-size:.67rem}.file-copy .delta-good{color:var(--green)}.file-copy .delta-warn,.file-copy .file-error{color:#a43a24}.status-icon{color:var(--muted);place-items:center;display:grid}.status-ready .status-icon{color:var(--green)}.status-error .status-icon{color:var(--orange-dark)}.icon-button,.text-button{color:var(--ink);background:0 0;border:0;align-items:center;gap:7px;display:inline-flex}.icon-button{justify-content:center;width:34px;height:34px}.icon-button:hover,.text-button:hover{color:var(--orange-dark)}.queue-actions{justify-content:space-between;align-items:center;padding-top:16px;display:flex}.convert-bar{border-top:1px solid var(--ink);background:#e7e0d0;justify-content:space-between;align-items:center;gap:20px;min-height:76px;padding:12px 20px;display:flex}.convert-bar>span{color:var(--green);align-items:center;gap:7px;font-size:.72rem;font-weight:700;display:flex}.global-error{border-left:3px solid var(--orange);color:#8e2e18;background:#fff0e9;margin:14px 0 0;padding:8px 12px;font-size:.8rem}.spin{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(1turn)}}.section{border-top:1px solid var(--line);padding:clamp(70px,9vw,120px) 0}.section-heading{grid-template-columns:minmax(0,.7fr) minmax(0,1fr);align-items:end;gap:40px;margin-bottom:44px;display:grid}.section-heading p{max-width:540px;color:var(--muted)}.card-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.tool-card,.benefit-card{border:1px solid var(--ink);background:var(--paper-bright);min-height:210px;padding:22px;text-decoration:none;transition:transform .15s,box-shadow .15s;position:relative}.tool-card:hover{transform:translate(-3px,-3px);box-shadow:5px 5px #17211d26}.tool-card .route{color:var(--muted);letter-spacing:.06em;font-size:.66rem}.tool-card .pair{align-items:center;gap:10px;margin:26px 0 12px;font-family:Newsreader Variable,serif;font-size:2rem;display:flex}.tool-card .arrow{color:var(--orange)}.tool-card p,.benefit-card p{color:var(--muted);font-size:.84rem}.tool-card .card-index{color:var(--line);font-family:Newsreader Variable,serif;font-size:2.7rem;position:absolute;bottom:12px;right:16px}.benefit-card{min-height:190px}.benefit-card .benefit-number{color:var(--blue);margin-bottom:38px;font-size:.72rem;font-weight:800;display:inline-block}.steps{counter-reset:step;border-block:1px solid var(--ink);grid-template-columns:repeat(3,1fr);margin:0;padding:0;list-style:none;display:grid}.steps li{counter-increment:step;border-right:1px solid var(--ink);padding:28px;font-family:Newsreader Variable,serif;font-size:1.35rem}.steps li:last-child{border-right:0}.steps li:before{content:"0" counter(step);color:var(--orange-dark);margin-bottom:24px;font-family:Public Sans Variable,sans-serif;font-size:.72rem;font-weight:800;display:block}.page-hero{padding:clamp(60px,8vw,105px) 0 35px}.page-hero h1{max-width:960px;font-size:clamp(3rem,6.8vw,6.3rem)}.page-hero .lede{color:#454c47;max-width:720px;font-size:1.1rem}.article-layout{grid-template-columns:210px minmax(0,1fr);gap:clamp(35px,7vw,90px);padding-bottom:100px;display:grid}.article-aside{color:var(--muted);align-self:start;font-size:.72rem;position:sticky;top:105px}.article-aside strong{color:var(--ink);margin-bottom:8px;display:block}.article-body{max-width:760px}.article-body section{border-top:1px solid var(--line);padding:32px 0}.article-body h2{font-size:clamp(1.8rem,3.5vw,2.8rem)}.article-body p{color:#424944;font-size:1.02rem}.privacy-resources{gap:10px;display:grid}.privacy-resources .eyebrow{margin-bottom:4px}.reason-grid{background:var(--ink);border:1px solid var(--ink);grid-template-columns:repeat(3,1fr);gap:1px;display:grid}.reason-grid article{background:var(--paper-bright);padding:26px}.faq-list{border-top:1px solid var(--ink)}.faq-list details{border-bottom:1px solid var(--ink)}.faq-list summary{justify-content:space-between;gap:20px;padding:22px 0;font-weight:740;list-style:none;display:flex}.faq-list summary:after{content:"+";color:var(--orange-dark);font-size:1.3rem}.faq-list details[open] summary:after{content:"−"}.faq-list p{max-width:720px;color:var(--muted);padding:0 0 22px}.guide-list{border-top:1px solid var(--ink);gap:0;display:grid}.guide-link{border-bottom:1px solid var(--ink);grid-template-columns:55px 1fr auto;align-items:center;gap:20px;padding:20px 0;text-decoration:none;display:grid}.guide-link:hover h3{color:var(--orange-dark)}.guide-link>span:first-child{color:var(--muted);font-size:.7rem}.guide-link h3,.guide-link p{margin:0}.guide-link p{color:var(--muted);font-size:.8rem}.ad-region{border-block:1px solid var(--line);background:#fffdf670;min-height:120px;margin:56px 0;padding:18px}.ad-label{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;font-size:.62rem;font-weight:700;display:block}.site-footer{border-top:1px solid var(--ink);background:#ded6c4}.footer-grid{grid-template-columns:2fr repeat(3,1fr);gap:50px;padding:65px 0 55px;display:grid}.footer-grid>div:not(.footer-brand){flex-direction:column;gap:8px;font-size:.78rem;display:flex}.footer-grid>div>strong{letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-size:.7rem}.footer-brand p{max-width:340px;color:var(--muted);margin:18px 0;font-size:.85rem}.privacy-stamp{border:1px solid var(--green);color:var(--green);letter-spacing:.07em;padding:4px 7px;font-size:.6rem;font-weight:800;display:inline-block;transform:rotate(-1deg)}.footer-bottom{border-top:1px solid var(--line-dark);letter-spacing:.06em;justify-content:space-between;padding:18px 0;font-size:.65rem;font-weight:700;display:flex}@media (max-width:850px){.desktop-nav{display:none}.language-menu{margin-left:auto}.hero-grid{grid-template-columns:1fr}.hero-specimen{width:100%;max-width:520px;min-height:250px}.converter-grid{grid-template-columns:1fr}.work-area{border-right:0;border-bottom:1px solid var(--ink)}.card-grid,.reason-grid{grid-template-columns:1fr 1fr}.section-heading{grid-template-columns:1fr;gap:10px}.footer-grid{grid-template-columns:2fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2}}@media (max-width:560px){.container,.narrow{width:min(100% - 24px,1180px)}.desktop-only{display:none}.hero{padding-top:48px}h1{font-size:clamp(2.8rem,16vw,4.4rem)}.hero-specimen{min-height:210px}.file-sheet{padding:17px}.converter-wrap{padding-top:2px}.format-rail{gap:11px;padding-inline:12px}.format-rail>div{gap:6px}.format-rail strong{font-size:1.3rem}.format-rail span{letter-spacing:.06em;font-size:.58rem}.format-rail .local-stamp{font-size:0}.format-rail .local-stamp svg{width:16px}.drop-zone{min-height:230px;padding:20px}.convert-bar{flex-direction:column;align-items:stretch}.convert-bar .button{width:100%}.file-row{grid-template-columns:42px minmax(0,1fr) auto auto}.file-row .status-icon{display:none}.card-grid,.reason-grid,.steps{grid-template-columns:1fr}.steps li{border-right:0;border-bottom:1px solid var(--ink)}.steps li:last-child{border-bottom:0}.article-layout{grid-template-columns:1fr}.article-aside{position:static}.guide-link{grid-template-columns:35px 1fr}.guide-link>svg{display:none}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}