@font-face{font-family:SiteFallback;src:local('Malgun Gothic');font-display:swap}
:root{--ink:#17262d;--muted:#58666b;--line:#dce2e4;--accent:#5751db;--green:#126557;--pale:#f3f6f6;--blue:#164e9e}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;color:var(--ink);font-family:'Segoe UI',SiteFallback,Arial,sans-serif;font-size:16px;line-height:1.7;letter-spacing:0;background:#fff}button,input{font:inherit}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{max-width:100%;display:block}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #6c66ed;outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{word-break:keep-all;line-height:1.35}h2{font-size:38px;font-weight:650}h3{font-size:21px;font-weight:650}ul{margin:0;padding:0;list-style:none}i[data-lucide],svg{width:20px;height:20px;flex-shrink:0;stroke-width:1.65}.shell{width:min(1240px,calc(100% - 96px));margin:auto}.header{height:76px;position:sticky;top:0;z-index:20;background:#ffffffed;border-bottom:1px solid #e7ebed;backdrop-filter:blur(16px)}.nav{display:flex;align-items:center;justify-content:space-between;height:100%}.brand{display:inline-flex;align-items:center;gap:11px;font-size:23px;font-weight:600;line-height:1;white-space:nowrap}.brand img{flex-shrink:0}.nav nav{display:flex;align-items:center;gap:34px;font-size:14px;font-weight:600}.nav a:not(.brand):hover{color:var(--accent)}.nav-contact{display:flex;gap:8px;align-items:center;border-left:1px solid var(--line);padding-left:30px}.nav-contact svg{width:17px}.icon-button{border:1px solid var(--line);border-radius:6px;width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;background:#fff;color:var(--ink);flex-shrink:0}.icon-button:hover{background:#f0f2fc}.menu-button{display:none}.skip{position:fixed;top:-80px;left:20px;z-index:100;background:#fff;padding:10px}.skip:focus{top:10px}
.hero{position:relative;min-height:610px;height:calc(100svh - 210px);max-height:720px;isolation:isolate;overflow:hidden}.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;z-index:-1}.hero-content{padding-top:77px;padding-bottom:70px}.eyebrow{font-size:11px;line-height:1.6;font-weight:700;color:var(--green);margin-bottom:19px}.hero .eyebrow{color:#3b5055}.hero h1{font-size:68px;font-weight:700;line-height:1.2;margin-bottom:23px}.hero-message{font-size:29px;line-height:1.45;font-weight:600;margin-bottom:20px}.hero-description{font-size:15px;color:#35454b;line-height:1.85}.actions{display:flex;align-items:center;gap:12px;margin-top:27px}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:13px 20px;border:1px solid transparent;border-radius:5px;font-size:14px;font-weight:600;min-height:48px}.button svg{width:17px}.primary{background:var(--ink);color:white}.primary:hover{background:#30515a}.light{background:#fffffff0;border-color:#cad2d6}.light:hover{background:#fff}.image-credit{position:absolute;right:24px;bottom:15px;font-size:10px;color:white;background:#17262d9c;padding:2px 7px}.audience-strip{border-bottom:1px solid var(--line)}.audience-inner{display:flex;align-items:center;justify-content:space-between;min-height:80px;gap:25px}.audience-inner>span{font-size:13px;color:var(--muted)}.audience-inner ul{display:flex;align-items:center;gap:50px;font-size:14px;font-weight:600}.section{padding-top:102px;padding-bottom:102px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:42px}.section-intro{font-size:15px;color:var(--muted);line-height:1.9;padding-bottom:4px}.feature-tabs{display:flex;border-bottom:1px solid var(--line);gap:22px;overflow-x:auto;scrollbar-width:thin}.feature-tabs button{display:flex;align-items:center;gap:9px;min-height:58px;background:none;border:0;border-bottom:3px solid transparent;padding:0 4px 15px;color:var(--muted);font-size:15px;white-space:nowrap;font-weight:600}.feature-tabs button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}.feature-tabs svg{width:19px}.feature-summary{display:flex;align-items:center;justify-content:space-between;gap:42px;margin:29px 0 24px;min-height:80px}.feature-summary h3{font-size:22px;flex:0 0 36%}.feature-summary p{font-size:14px;color:var(--muted);max-width:610px;line-height:1.9}.product-view{position:relative;margin:0;border:1px solid #cfd6dd;border-radius:6px;overflow:hidden;background:#eff3fa;aspect-ratio:16/9;box-shadow:0 18px 50px #162d4410}.product-view>img{width:100%;height:100%;object-fit:contain}.enlarge{position:absolute;bottom:17px;right:17px;box-shadow:0 2px 8px #0002}.feature-footer{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:21px}.feature-footer ul{display:flex;gap:27px;font-size:13px;color:#344a51}.feature-footer li:before{content:'';display:inline-block;width:5px;height:5px;background:var(--green);margin-right:9px;vertical-align:3px}.text-link{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;white-space:nowrap}.text-link:hover{color:var(--accent)}.text-link svg{width:17px}.caption{font-size:11px;color:#758186;margin-top:15px;line-height:1.8}.lesson-band{background:#f2f6f4}.lesson-flow{padding:0;list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:33px;margin:60px 0 0}.lesson-flow li{position:relative;border-top:1px solid #b6c9c1;padding-top:27px;min-width:0}.step-no{position:absolute;top:-14px;right:0;font-size:13px;font-weight:600;background:#f2f6f4;padding-left:12px;color:#688077}.lesson-flow>li>svg{color:var(--green);width:29px;height:29px;margin-bottom:24px}.lesson-flow h3{font-size:24px;margin-bottom:16px}.lesson-flow p{color:#54685f;font-size:14px;line-height:1.9;min-height:110px}.step-label{display:block;margin-top:23px;font-size:11px;font-weight:600;color:var(--green)}.system-layout{display:grid;grid-template-columns:minmax(0,1fr) 64px minmax(0,1.1fr) 64px minmax(0,1fr);align-items:center;margin-top:60px}.system-layout article{border-top:2px solid #cad5d9;padding:29px 0 10px;min-height:255px;position:relative}.system-layout article>svg{position:absolute;right:0;top:27px;width:25px;height:25px;color:#6d818b}.component-label{font-size:11px;font-weight:700;color:#58717b}.system-layout h3{font-size:22px;margin:28px 0 15px}.system-layout p{font-size:14px;color:var(--muted);line-height:1.9}.system-layout .server-component{border-top-color:var(--accent)}.connection{display:flex;justify-content:center;color:#86959a}.environment-note{display:flex;gap:13px;margin-top:28px;padding-top:23px;border-top:1px solid var(--line);font-size:12px;line-height:1.9;color:var(--muted)}.environment-note svg{width:17px;margin-top:3px}.guide-band{background:#f3f3fa;padding:72px 0}.guide-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:85px;align-items:center}.guide-inner h2{font-size:32px}.guide-inner p:not(.eyebrow){font-size:14px;color:var(--muted);margin-top:20px;line-height:1.9}.guide-links a{display:flex;align-items:center;gap:20px;border-bottom:1px solid #d9d9e8;padding:22px 0}.guide-links a:first-child{border-top:1px solid #d9d9e8}.guide-links a>svg:first-child{color:var(--accent);width:26px;height:26px}.guide-links a>svg:last-child{margin-left:auto}.guide-links a:hover strong{color:var(--accent)}.guide-links strong{font-size:17px;font-weight:600;display:block}.guide-links small{font-size:12px;color:var(--muted);display:block;margin-top:3px}.faq-section{display:grid;grid-template-columns:.8fr 1.4fr;gap:80px}.faq-section h2{font-size:31px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{list-style:none;display:flex;gap:25px;align-items:center;justify-content:space-between;padding:24px 0;font-size:15px;font-weight:600;cursor:pointer;word-break:keep-all}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary svg{width:17px;transition:transform .2s}.faq-list details[open] summary svg{transform:rotate(45deg)}.faq-list details p{font-size:14px;line-height:1.9;color:var(--muted);padding:0 35px 24px 0}.contact-band{background:#e9f2ee;padding:81px 0}.contact-inner{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}.contact-inner h2{font-size:36px}.contact-inner p:not(.eyebrow){font-size:14px;color:#50685e;margin-top:21px;line-height:1.9}.contact-methods{display:flex;flex-direction:column;align-items:flex-start}.contact-email{font-size:25px;font-weight:600;display:inline-flex;align-items:center;gap:15px;max-width:100%;overflow-wrap:anywhere;line-height:1.6}.contact-email:hover{color:var(--green)}.contact-phone{font-size:23px;margin-top:13px;color:#345b4a}.contact-methods>span{font-size:12px;color:#6b8076;margin-top:27px}.footer{padding-top:38px;padding-bottom:32px}.footer-top{display:flex;justify-content:space-between;align-items:center}.footer .brand{font-size:20px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:23px;margin-top:30px;font-size:11px;color:#6f7d82}dialog{border:0;border-radius:7px;padding:0;width:min(1540px,96vw);max-width:96vw;max-height:94svh;box-shadow:0 25px 90px #0005}dialog::backdrop{background:#16272eaa}dialog>img{width:100%;height:auto;max-height:calc(94svh - 62px);object-fit:contain;background:#f3f5f7}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;padding:9px 15px;font-size:14px;font-weight:600;border-bottom:1px solid var(--line)}.dialog-toolbar .icon-button{height:36px;width:36px}.manual-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:65px;padding-top:55px;padding-bottom:90px}.manual-sidebar{position:sticky;top:110px;align-self:start}.manual-sidebar h2{font-size:15px;margin-bottom:18px}.manual-sidebar a{display:block;font-size:13px;color:var(--muted);padding:9px 0}.manual-sidebar a:hover{color:var(--accent)}.manual-content{min-width:0}.manual-content h1{font-size:42px;margin:0 0 18px}.manual-lead{color:var(--muted);font-size:16px;margin-bottom:35px}.manual-content section{padding:43px 0;border-top:1px solid var(--line);scroll-margin-top:100px}.manual-content h2{font-size:27px;margin-bottom:20px}.manual-content h3{font-size:17px;margin:24px 0 10px}.manual-content p,.manual-content li{font-size:14px;line-height:1.95;color:var(--muted)}.manual-content ol{padding-left:20px}.manual-content li{padding-left:6px;margin-bottom:10px}.manual-content img{border:1px solid var(--line);border-radius:5px;margin:24px 0 12px;width:100%;height:auto}.manual-note{border-left:3px solid #9bafe2;background:#f3f6fc;padding:15px 19px;margin:20px 0;font-size:13px;color:#405779}.manual-content .text-link{color:var(--blue);margin-top:15px}.manual-top{background:#f5f7f7;padding:25px 0;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}
@media(min-width:1600px){.hero-content{padding-top:105px}.hero-photo{object-position:center 20%}}
@media(max-width:1050px){.shell{width:calc(100% - 60px)}h2{font-size:32px}.hero h1{font-size:60px}.hero{min-height:580px}.section{padding-top:78px;padding-bottom:78px}.section-heading{gap:28px}.section-intro{font-size:13px}.feature-tabs{gap:14px}.feature-tabs button{font-size:13px;gap:7px}.feature-summary h3{font-size:19px}.lesson-flow{gap:22px}.lesson-flow p{font-size:13px;min-height:130px}.system-layout{grid-template-columns:minmax(0,1fr) 36px minmax(0,1fr) 36px minmax(0,1fr)}.system-layout h3{font-size:19px}.system-layout p{font-size:13px}.guide-inner{gap:45px}.guide-inner h2{font-size:28px}.contact-email{font-size:21px}.contact-inner h2{font-size:30px}.faq-section{gap:45px}.manual-layout{gap:35px;grid-template-columns:180px minmax(0,1fr)}}
@media(max-width:700px){html{scroll-padding-top:82px}.shell{width:calc(100% - 40px)}.header{height:66px}.brand{font-size:21px;gap:9px}.brand img{width:29px;height:29px}.menu-button{display:inline-flex;width:38px;height:38px}.nav nav{display:none;position:absolute;left:0;right:0;top:65px;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 20px;box-shadow:0 15px 20px #17262d0d}.nav nav.is-open{display:flex}.nav nav a{padding:13px 4px}.nav-contact{border-left:0;border-top:1px solid var(--line);margin-top:8px;justify-content:space-between}.hero{height:590px;min-height:0;max-height:none}.hero-photo{object-position:left top}.hero-content{padding-top:50px;padding-bottom:40px}.eyebrow{font-size:10px;margin-bottom:17px}.hero h1{font-size:46px;margin-bottom:22px}.hero-message{font-size:27px;margin-bottom:20px}.hero-description{font-size:13px;line-height:1.9;max-width:330px}.actions{margin-top:26px;gap:9px}.button{font-size:13px;padding:12px 15px;gap:12px}.image-credit{right:13px;bottom:12px;font-size:9px}.audience-inner{align-items:flex-start;flex-direction:column;gap:12px;padding:22px 0;min-height:0}.audience-inner>span{font-size:11px}.audience-inner ul{font-size:12px;gap:17px;flex-wrap:wrap}.section{padding-top:62px;padding-bottom:62px}h2{font-size:29px}.section-heading{align-items:flex-start;flex-direction:column;gap:20px;margin-bottom:28px}.section-intro{font-size:13px}.section-intro br{display:none}.feature-tabs{gap:20px;margin-right:-20px;padding-right:20px}.feature-tabs button{font-size:13px;min-height:52px;padding-bottom:12px}.feature-tabs svg{width:17px}.feature-summary{display:block;margin:24px 0 19px;min-height:142px}.feature-summary h3{font-size:20px;margin-bottom:12px}.feature-summary p{font-size:13px}.product-view{border-radius:4px;box-shadow:0 10px 30px #162d440c}.enlarge{width:33px;height:33px;right:8px;bottom:8px}.enlarge svg{width:15px}.feature-footer{align-items:flex-start;gap:17px}.feature-footer ul{flex-direction:column;gap:3px;font-size:11px}.feature-footer .text-link{font-size:12px}.caption{font-size:10px;line-height:1.8}.lesson-flow{grid-template-columns:1fr 1fr;gap:40px 26px;margin-top:38px}.lesson-flow li{padding-top:23px}.lesson-flow>li>svg{width:25px;height:25px;margin-bottom:18px}.lesson-flow h3{font-size:21px;margin-bottom:13px}.lesson-flow p{font-size:12px;min-height:124px;line-height:1.9}.step-label{font-size:10px;line-height:1.8;margin-top:16px}.step-no{font-size:11px}.system-layout{grid-template-columns:1fr;margin-top:34px}.system-layout article{min-height:0;padding-top:23px;padding-bottom:15px}.system-layout h3{font-size:21px;margin:21px 0 12px}.system-layout p{font-size:13px;max-width:500px}.connection{height:38px;transform:rotate(90deg)}.environment-note{font-size:11px;margin-top:24px;padding-top:22px}.guide-band{padding:54px 0}.guide-inner{grid-template-columns:1fr;gap:31px}.guide-inner h2{font-size:28px}.guide-inner p:not(.eyebrow){font-size:13px}.guide-links a{padding:18px 0}.guide-links strong{font-size:16px}.faq-section{grid-template-columns:1fr;gap:30px}.faq-section h2{font-size:28px}.faq-list summary{font-size:14px;padding:21px 0;gap:15px}.faq-list details p{font-size:13px;padding-right:10px}.contact-band{padding:55px 0}.contact-inner{grid-template-columns:1fr;gap:34px}.contact-inner h2{font-size:29px}.contact-inner p:not(.eyebrow){font-size:13px}.contact-inner p br{display:none}.contact-email{font-size:22px;gap:10px}.contact-phone{font-size:21px;margin-top:10px}.contact-methods>span{font-size:11px;margin-top:16px}.footer{padding-top:28px;padding-bottom:25px}.footer .brand{font-size:18px}.footer .text-link{font-size:11px}.footer-bottom{flex-direction:column;gap:5px;font-size:10px;margin-top:24px;padding-top:20px}.manual-layout{display:block;padding-top:30px}.manual-sidebar{position:static;display:flex;gap:19px;overflow:auto;border-bottom:1px solid var(--line);margin-bottom:32px;padding-bottom:12px;white-space:nowrap}.manual-sidebar h2{display:none}.manual-sidebar a{font-size:12px;padding:5px 0}.manual-content h1{font-size:34px}.manual-lead{font-size:14px}.manual-content h2{font-size:24px}.manual-content section{padding:34px 0}.manual-content p,.manual-content li{font-size:13px}.manual-content .actions{flex-wrap:wrap}.manual-note{font-size:12px;padding:13px 15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.hero{min-height:540px;height:calc(100svh - 170px);max-height:700px}.hero-content{padding-top:54px}.hero .actions{margin-top:25px}
@media(min-width:1600px){.hero-content{padding-top:83px}}
@media(max-width:700px){.hero{height:530px;min-height:0}.hero-content{padding-top:50px}.hero .actions{margin-top:27px}}
@media(max-width:360px){.hero h1{font-size:40px}.hero-message{font-size:25px}.audience-inner ul{gap:12px;font-size:11px}}