:root{--brand:#425547;--dark:#212b24;--accent:#425547;--soft:#f3f6f4;--line:#d7e0d9;--page:#f8f7f2;--muted:#58625a;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--dark);background:var(--page);font-family:Inter,"Pretendard","Noto Sans KR",Arial,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}header{max-width:1280px;margin:auto;padding:24px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;letter-spacing:-1px}.brand-mark{display:grid;place-items:center;background:var(--brand);color:white;width:34px;height:37px;border-radius:5px;font-size:24px;font-family:Georgia,serif;font-weight:400}nav{display:flex;gap:32px;font-size:15px;font-weight:600}.header-link{border:1px solid var(--line);padding:8px 18px;border-radius:5px;font-size:14px}main{max-width:1280px;margin:auto}.hero{padding:80px 40px 65px;display:grid;grid-template-columns:1fr 1.13fr;gap:40px;align-items:center}.eyebrow{color:var(--accent);font-weight:700;font-size:14px;letter-spacing:.04em;margin-bottom:20px}h1{font-size:clamp(36px,4vw,55px);line-height:1.28;letter-spacing:-2.7px;margin:0 0 24px;font-weight:800}h1 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16px;display:flex;justify-content:space-between;align-items:center;font-size:14px}.app-top>span{font-size:12px;opacity:.8}.app-body{display:grid;grid-template-columns:150px 1fr;min-height:325px}.app aside{background:var(--soft);border-right:1px solid var(--line);padding:18px 8px;position:relative;font-size:13px}.tree-title{font-weight:700;padding:0 10px 15px}.folder{padding:9px 8px}.doc{width:100%;text-align:left;padding:8px 9px 8px 20px;border:0;background:transparent;border-radius:4px;font-size:13px;color:var(--muted)}.doc.active{color:var(--accent);background:var(--line);font-weight:700}.tree-bottom{position:absolute;bottom:14px;left:12px;font-size:12px;color:var(--muted)}#demo{padding:24px 22px;font-size:14px}.doc-label{font-size:12px;color:var(--muted)}#demo h2{font-size:22px;letter-spacing:-.8px;margin:18px 0 4px}.doc-sub{color:var(--muted);font-size:13px;margin:0 0 18px}hr{border:0;border-top:1px solid var(--line)}#demo h3{font-size:14px;margin:20px 0 12px}#demo label{display:block;font-size:13px;margin:8px 0}input{accent-color:var(--accent)}.note{background:var(--soft);padding:10px 12px;margin-top:18px;font-size:12px;color:var(--muted);border-left:2px solid var(--accent)}.app-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:7px 13px;color:var(--muted);font-size:12px}.benefits{margin:0 40px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0}.benefits>div{display:flex;gap:18px;align-items:center;justify-content:center;border-right:1px solid var(--line)}.benefits>div:last-child{border:0}.benefits b{color:var(--accent);font-size:14px}.benefits span{font-size:15px}.section{padding:80px 40px}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:35px}h2{font-size:34px;line-height:1.4;letter-spacing:-1.3px;margin:0}.section-heading p{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-grid article{background:white;border:1px solid var(--line);border-radius:7px;padding:28px}.feature-no{font-size:12px;letter-spacing:.07em;color:var(--accent);font-weight:700}.feature-grid h3{font-size:20px;letter-spacing:-.6px;margin-top:25px}.feature-grid p{font-size:15px;color:var(--muted);margin-bottom:0;line-height:1.9}.use-section{margin:0 40px;padding:42px;background:var(--brand);color:white;border-radius:8px;display:grid;grid-template-columns:1fr 1.1fr;gap:40px}.use-section .eyebrow{color:#ffffffb0}.use-section h2{font-size:30px}.use-list>div{display:grid;grid-template-columns:28px 1fr;column-gap:14px;border-bottom:1px solid #ffffff30;padding:17px 0}.use-list>div:first-child{padding-top:0}.use-list>div:last-child{border:0;padding-bottom:0}.use-list span{opacity:.65;font-size:14px}.use-list h3{font-size:18px;margin:0}.use-list p{grid-column:2;font-size:14px;opacity:.8;margin:6px 0 0}.faq{display:grid;grid-template-columns:1fr 1.5fr;gap:70px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:19px 0}summary{font-weight:600;cursor:pointer;font-size:16px}details p{color:var(--muted);font-size:15px;line-height:1.9;padding-right:20px;margin-bottom:2px}.closing{margin:0 40px 70px;padding:36px 40px;border:1px solid var(--line);background:var(--soft);display:flex;align-items:center;justify-content:space-between;gap:25px;border-radius:8px}.closing span{font-size:14px;color:var(--accent)}.closing h2{font-size:27px;margin:8px 0}.closing p{font-size:14px;color:var(--muted);margin:0}footer{max-width:1200px;margin:auto;padding:25px 0 40px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:14px}footer .brand{font-size:19px}#demo table{border-collapse:collapse;width:100%;font-size:13px}#demo td,#demo th{border-bottom:1px solid var(--line);padding:9px 5px;text-align:left}#demo td:last-child{text-align:right}@media(max-width:1000px){.hero{gap:24px;padding:55px 25px}.app-wrap{padding:18px 14px}h1{font-size:40px}.app-body{grid-template-columns:120px 1fr}.doc{padding-left:9px}.section{padding:60px 25px}.feature-grid article{padding:22px}.benefits,.use-section,.closing{margin-left:25px;margin-right:25px}footer{margin:0 25px}}@media(max-width:700px){header{padding:17px 20px}nav{display:none}.brand{font-size:21px}.hero{grid-template-columns:1fr;padding:44px 20px 34px;gap:32px}h1{font-size:40px}.hero-copy>p{font-size:16px}.hero-meta{font-size:12px}.app-wrap{padding:16px}.app-body{grid-template-columns:115px 1fr}#demo{padding:20px 12px}#demo h2{font-size:20px}.benefits{margin:0 20px;grid-template-columns:1fr;padding:10px 0}.benefits>div{justify-content:start;border:0;padding:8px}.section{padding:48px 20px}.section-heading{display:block}.section-heading>p{margin-top:20px;font-size:15px}h2{font-size:29px}.feature-grid{grid-template-columns:1fr;gap:12px}.feature-grid article{padding:23px}.feature-grid h3{margin-top:12px}.use-section{grid-template-columns:1fr;margin:0 20px;padding:28px;gap:30px}.faq{grid-template-columns:1fr;gap:24px}.closing{margin:0 20px 40px;padding:25px;display:block}.closing h2{font-size:24px}.closing .primary{margin-top:20px}footer{flex-wrap:wrap;gap:20px;margin:0 20px}.tree-bottom{font-size:10px}.doc{font-size:12px}.app-top>span{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.download-section{margin:0 40px;padding:60px 0 20px}.download-heading p{color:var(--muted)}.requirements{display:grid;grid-template-columns:repeat(3,1fr);margin:28px 0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:white}.requirements>div{padding:25px;border-right:1px solid var(--line)}.requirements>div:last-child{border:0}.requirements span{display:block;font-size:14px;color:var(--muted)}.requirements strong{display:block;font-size:20px;margin-top:8px}.requirements p{font-size:14px;margin:5px 0 0;color:var(--muted)}.install-guide{display:grid;grid-template-columns:1.2fr 1fr;gap:40px}.install-guide h3{font-size:18px}.install-guide ol{padding-left:22px;line-height:2;font-size:15px}.unsupported{font-size:14px;color:var(--muted)}.install-guide aside{background:var(--soft);border:1px solid var(--line);padding:24px;border-radius:7px}.install-guide aside h3{margin-top:0}.install-guide aside p{font-size:14px;color:var(--muted)}.version-note{margin-bottom:0}.app-caption{gap:15px}.app-caption span:last-child{text-align:right}@media(max-width:700px){.download-section{margin:0 20px;padding-top:45px}.requirements,.install-guide{grid-template-columns:1fr}.requirements>div{border-right:0;border-bottom:1px solid var(--line)}.install-guide{gap:15px}}

.hero{grid-template-columns:.82fr 1.18fr}.screen-preview{min-width:0}.screen-tabs{display:flex;gap:8px;margin-bottom:12px}.screen-tabs button{font-size:14px;padding:10px 13px;border:1px solid var(--line);background:white;color:var(--muted);border-radius:5px}.screen-tabs .selected{background:var(--brand);color:white;border-color:var(--brand)}.screen-image{position:relative;display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:white;box-shadow:0 15px 30px #14211a14}.screen-image img{display:block;width:100%;height:auto}.screen-image>span{position:absolute;right:10px;bottom:10px;background:var(--brand);color:white;font-size:13px;padding:5px 12px;border-radius:4px}.screen-preview>p{font-size:15px;margin:15px 0 6px}.screen-preview>small{display:block;font-size:12px;color:var(--muted)}dialog{border:0;border-radius:10px;padding:18px;width:min(1500px,96vw);max-width:96vw;max-height:94vh;background:white;color:var(--dark)}dialog::backdrop{background:#101827cc}.dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:12px}.dialog-bar button{background:var(--brand);color:white;border:0;border-radius:4px;padding:8px 18px}.zoom-area{overflow:auto;max-height:75vh}.zoom-area img{display:block;width:100%;min-width:1000px;height:auto}dialog>p{font-size:13px;color:var(--muted);margin-bottom:0}@media(max-width:700px){.hero{grid-template-columns:1fr}.screen-tabs button{font-size:13px;flex:1}.screen-preview>small{font-size:12px}dialog{padding:12px}.dialog-bar strong{font-size:14px}}

.screen-preview figure{margin:0 0 20px}.screen-preview figcaption{font-size:15px;font-weight:700;color:var(--brand);margin-bottom:9px}.download-pending{border:0;opacity:.65;cursor:default}.actions #download-status{flex-basis:100%;font-size:14px;color:var(--muted)}

#back-to-top{position:fixed;right:max(22px,env(safe-area-inset-right));bottom:calc(24px + env(safe-area-inset-bottom));z-index:20;padding:12px 18px;background:var(--brand);color:white;border:1px solid #ffffff70;border-radius:999px;font-size:14px;font-weight:700;box-shadow:0 5px 18px #14211a26}
#back-to-top[hidden]{display:none}
#back-to-top:hover{background:var(--dark)}
@media(max-width:700px){#back-to-top{right:16px;bottom:calc(18px + env(safe-area-inset-bottom));padding:11px 16px}.screen-preview{max-width:800px}}

/* Introduction beside both demonstration images. */
.hero{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);align-items:center;gap:40px;padding:60px 40px}
.hero-copy{min-width:0;text-align:left}
.hero-copy .actions,.hero-meta{justify-content:flex-start}
.screen-preview{display:grid;grid-template-columns:1fr;gap:18px;max-width:none;width:100%;margin:0}
.screen-preview figure{margin:0;min-width:0}
.screen-preview figcaption{font-size:15px;margin-bottom:8px;text-align:left}
.screen-preview>small{font-size:13px;line-height:1.7}
@media(max-width:1000px){.hero{gap:24px;padding:48px 25px}}
@media(max-width:700px){.hero{grid-template-columns:1fr;padding:36px 20px;gap:28px}.hero-meta{font-size:14px}.screen-preview{max-width:none}}

.screen-preview{display:block}
.screen-tabs{margin:16px 0 10px}
.screen-tabs button{min-width:100px;font-size:15px}
.screen-tabs button[aria-pressed="true"]{background:var(--brand);color:white;border-color:var(--brand);font-weight:700}
#screen-description{font-size:15px;color:var(--dark);line-height:1.8;margin:0 0 8px}

/* Balance the introduction and selected product screen. */
.hero{max-width:1160px;margin:0 auto;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;padding:72px 48px 64px;align-items:center}
.hero-copy{padding-left:20px}
.hero-copy h1{font-size:clamp(36px,3.7vw,50px);letter-spacing:-2px}
.hero-copy>p{font-size:17px}
.screen-preview{max-width:510px;justify-self:center;padding-top:36px}
.screen-tabs{justify-content:center}
#screen-description,.screen-preview>small{text-align:center}
@media(max-width:1000px){.hero{gap:28px;padding:56px 32px}.hero-copy{padding-left:8px}.hero-copy h1{font-size:38px}.hero-copy>p{font-size:16px}.screen-preview{padding-top:28px}}
@media(max-width:700px){.hero{grid-template-columns:1fr;padding:40px 24px;gap:28px}.hero-copy{padding-left:0}.hero-copy h1{font-size:clamp(34px,8vw,40px)}.screen-preview{padding-top:0;max-width:510px}}
.hero-copy>p.hero-sub{font-size:15px;line-height:1.7;margin:-14px 0 26px}.hero-sub strong{color:var(--accent)}
.live-stats{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;margin-top:22px;padding:12px 16px;background:white;border:1px solid var(--line);border-radius:7px;width:fit-content;max-width:100%;font-size:14px;color:var(--muted)}.live-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;letter-spacing:.08em;color:#c0392b}.live-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:#e74c3c;animation:livepulse 1.6s ease-in-out infinite}.live-stats .stat strong{font-size:18px;color:var(--dark);margin-right:3px;font-variant-numeric:tabular-nums}.live-stats .stat+.stat{padding-left:18px;border-left:1px solid var(--line)}@keyframes livepulse{50%{opacity:.35}}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.why-grid article{background:white;border:1px solid var(--line);border-radius:7px;padding:24px}.why-grid h3{font-size:18px;margin:0 0 10px;letter-spacing:-.5px}.why-grid p{font-size:14px;color:var(--muted);line-height:1.85;margin:0}.why-grid a{color:var(--accent);font-weight:700;text-decoration:underline}.download-heading .primary{margin-top:6px}
@media(max-width:1000px){.why-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:700px){.why-grid{grid-template-columns:1fr}.live-stats{font-size:12px;gap:8px 10px;padding:10px 12px;flex-wrap:nowrap;white-space:nowrap}.live-stats .stat strong{font-size:16px}.live-stats .stat+.stat{padding-left:10px}}@media(prefers-reduced-motion:reduce){.live-badge::before{animation:none}}