:root{
  --ink:#0b1224;--muted:#64748b;--line:#e6ebf2;--blue:#1769ff;--blue2:#0f5be7;
  --green:#15b86a;--purple:#7c4dff;--orange:#ff8b2b;--navy:#08162b;--soft:#f7faff;
  --shadow:0 18px 60px rgba(15,23,42,.10);--radius:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Noto Sans KR","Malgun Gothic",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.55}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,235,242,.9)}.header-in{height:74px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;white-space:nowrap}.brand img{width:34px;height:34px;object-fit:contain}.brand span b{color:#0c5df4}.site-nav{display:flex;gap:25px;margin-left:auto;align-items:center;font-size:14px;font-weight:700}.site-nav a{padding:27px 0 23px;border-bottom:3px solid transparent}.site-nav a:hover,.site-nav a.active{color:var(--blue);border-color:var(--blue)}.lang{border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:12px}.menu-toggle{display:none;margin-left:auto;border:0;background:transparent;font-size:26px}
.hero{position:relative;overflow:hidden;padding:78px 0 58px;background:radial-gradient(circle at 72% 35%,#eef5ff 0,#fff 46%)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.eyebrow{font-size:12px;color:var(--blue);font-weight:900;letter-spacing:.04em}.hero h1{font-size:58px;line-height:1.03;margin:14px 0 18px;letter-spacing:-.04em}.hero h1 em{font-style:normal;color:var(--blue)}.lead{font-size:18px;color:#46546a;max-width:600px}.hero-actions{display:flex;gap:12px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:13px 20px;font-weight:800;font-size:14px;border:1px solid var(--line);background:#fff;transition:.2s}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(15,23,42,.12)}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.green{background:var(--green);border-color:var(--green);color:#fff}.btn.purple{background:var(--purple);border-color:var(--purple);color:#fff}.btn.orange{background:var(--orange);border-color:var(--orange);color:#fff}.hero-art{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center}.coin-main{width:330px;filter:drop-shadow(0 24px 35px rgba(206,146,0,.22))}.mascot-boy,.mascot-girl{position:absolute;bottom:0;width:210px;filter:drop-shadow(0 20px 25px rgba(15,23,42,.16))}.mascot-boy{left:-4px}.mascot-girl{right:-4px}.orb{position:absolute;border-radius:50%;border:1px dashed #bcd4ff;inset:35px;animation:spin 28s linear infinite}.orb:after,.orb:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 7px rgba(23,105,255,.08)}.orb:before{top:4px;left:50%}.orb:after{bottom:28px;right:18px}@keyframes spin{to{transform:rotate(360deg)}}
.section{padding:72px 0}.section.soft{background:var(--soft)}.section-title{text-align:center;margin-bottom:30px}.section-title h2{font-size:34px;letter-spacing:-.03em;margin:0 0 9px}.section-title p{margin:0;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.app-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 8px 28px rgba(15,23,42,.05);display:flex;flex-direction:column}.app-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font-size:26px;margin-bottom:16px}.app-card h3{margin:0 0 6px;font-size:20px}.app-card p{color:var(--muted);font-size:14px;min-height:44px}.app-meta{font-size:12px;color:#8290a6;margin:7px 0 16px}.app-card .btn{margin-top:auto}.blue-bg{background:#eef4ff;color:var(--blue)}.green-bg{background:#ebfbf3;color:var(--green)}.purple-bg{background:#f2efff;color:var(--purple)}.orange-bg{background:#fff3e9;color:var(--orange)}
.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.benefit{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff}.benefit b{display:block;margin-bottom:4px}.benefit span{font-size:13px;color:var(--muted)}
.product-hero{padding:64px 0 44px;background:linear-gradient(135deg,#fff,#f8fbff)}.product-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}.product-hero h1{font-size:46px;line-height:1.05;letter-spacing:-.035em;margin:10px 0 12px}.checks{list-style:none;padding:0;margin:24px 0}.checks li{margin:10px 0;padding-left:25px;position:relative}.checks li:before{content:"✓";position:absolute;left:0;color:var(--accent,var(--blue));font-weight:900}.download-box{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.download-meta{font-size:12px;color:var(--muted)}.product-preview{position:relative;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow);padding:18px;min-height:360px}.window{border:1px solid #cfd8e5;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 14px 35px rgba(15,23,42,.12)}.window-bar{height:34px;background:#f4f6f9;border-bottom:1px solid #dfe5ed;display:flex;align-items:center;padding:0 12px;font-size:11px;font-weight:800}.dots{margin-left:auto;letter-spacing:5px;color:#91a0b5}.mock-body{padding:16px}.files{display:grid;gap:8px}.file-row{display:grid;grid-template-columns:1.8fr .7fr .7fr;gap:10px;padding:10px 12px;background:#f8fafc;border-radius:8px;font-size:12px}.browser-shot{height:285px;background:linear-gradient(#85c7ff 0 36%,#e8f5ff 36%);border-radius:10px;overflow:hidden;position:relative}.mountains{position:absolute;left:0;right:0;bottom:0;height:145px;background:linear-gradient(145deg,transparent 0 12%,#4a729d 12% 26%,transparent 26%),linear-gradient(215deg,transparent 0 18%,#315778 18% 38%,transparent 38%),linear-gradient(#78a8c4,#315879);clip-path:polygon(0 70%,12% 38%,24% 68%,40% 25%,51% 65%,65% 31%,79% 68%,91% 40%,100% 62%,100% 100%,0 100%)}.browser-logo{position:absolute;top:75px;left:0;right:0;text-align:center;color:#fff;font-size:34px;font-weight:900;text-shadow:0 2px 10px rgba(0,0,0,.2)}.searchbar{position:absolute;top:127px;left:22%;right:22%;height:32px;border-radius:20px;background:#fff;box-shadow:0 5px 14px rgba(0,0,0,.12)}.video-shot{display:grid;grid-template-columns:1fr 160px;background:#141921;border-radius:10px;overflow:hidden;color:#dce4ee;height:300px}.video-screen{position:relative;background:linear-gradient(#4577a8,#182330)}.video-screen:before{content:"";position:absolute;left:0;right:0;bottom:35px;height:130px;background:linear-gradient(150deg,transparent 0 18%,#263b50 18% 36%,transparent 36%),linear-gradient(210deg,transparent 0 20%,#38546c 20% 43%,transparent 43%)}.controls{position:absolute;left:14px;right:14px;bottom:12px;height:5px;border-radius:3px;background:#5d6570}.controls:after{content:"";display:block;width:43%;height:100%;background:#ff3d57;border-radius:3px}.playlist{padding:12px;background:#202630}.thumb{height:36px;background:#35404e;border-radius:5px;margin-bottom:9px}.image-shot{height:300px;background:linear-gradient(#6bc4ff,#dff2ff 52%,#3d8251 53%,#1f5230);border-radius:10px;position:relative;overflow:hidden}.image-shot:before{content:"";position:absolute;bottom:52px;left:0;right:0;height:145px;background:linear-gradient(150deg,transparent 0 18%,#405f79 18% 37%,transparent 37%),linear-gradient(215deg,transparent 0 22%,#2b4d67 22% 43%,transparent 43%)}.filmstrip{position:absolute;left:10px;right:10px;bottom:10px;height:34px;background:rgba(9,21,33,.85);border-radius:7px}
.eco-hero{padding:66px 0 48px;background:radial-gradient(circle at 72% 40%,#fff6d7,#fff 47%)}.eco-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.eco-visual{position:relative;min-height:410px;display:flex;align-items:center;justify-content:center}.eco-visual .big-logo{width:330px;filter:drop-shadow(0 25px 30px rgba(177,123,0,.24))}.eco-visual .boy,.eco-visual .girl{position:absolute;bottom:-5px;width:170px}.eco-visual .boy{left:0}.eco-visual .girl{right:0}.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.flow-step{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;text-align:center;position:relative}.flow-step:not(:last-child):after{content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:var(--blue);font-weight:900}.flow-icon{font-size:28px;margin-bottom:10px}.flow-step b{display:block;font-size:14px}.flow-step span{font-size:12px;color:var(--muted)}
footer{background:var(--navy);color:#dbe7f7;padding:34px 0}.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.foot h4{margin:0 0 10px;color:#fff}.foot p,.foot a{font-size:13px;color:#9eb0c6}.foot-brand{display:flex;gap:10px;align-items:center;font-weight:800;color:#fff}.foot-brand img{width:34px}.copyright{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#7790ad;display:flex;justify-content:space-between;gap:20px}
.accent-green{--accent:var(--green)}.accent-purple{--accent:var(--purple)}.accent-orange{--accent:var(--orange)}
@media(max-width:900px){.site-nav{display:none;position:absolute;left:0;right:0;top:74px;background:#fff;border-bottom:1px solid var(--line);padding:16px 24px;flex-direction:column;align-items:flex-start}.site-nav.open{display:flex}.site-nav a{padding:8px 0}.menu-toggle{display:block}.lang{display:none}.hero-grid,.product-grid,.eco-grid{grid-template-columns:1fr}.hero h1{font-size:45px}.hero-art{min-height:380px}.cards{grid-template-columns:repeat(2,1fr)}.benefits{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:1fr}.flow-step:not(:last-child):after{content:"↓";right:auto;left:50%;top:auto;bottom:-18px}.foot{grid-template-columns:1fr 1fr}.product-preview{min-height:auto}}
@media(max-width:560px){.wrap{width:min(100% - 26px,1180px)}.hero{padding-top:48px}.hero h1{font-size:38px}.lead{font-size:16px}.hero-actions{flex-direction:column}.hero-art{min-height:300px}.coin-main{width:240px}.mascot-boy,.mascot-girl{width:145px}.cards,.benefits{grid-template-columns:1fr}.product-hero h1{font-size:38px}.product-grid{gap:30px}.eco-visual{min-height:320px}.eco-visual .big-logo{width:240px}.eco-visual .boy,.eco-visual .girl{width:120px}.foot{grid-template-columns:1fr}.copyright{flex-direction:column}.video-shot{grid-template-columns:1fr}.playlist{display:none}}

/* Language selector: Korean / English / Simplified Chinese */
.language-switcher{position:relative;flex:0 0 auto}.lang-button{border:1px solid var(--line);border-radius:999px;padding:8px 12px;background:#fff;color:var(--ink);font-size:12px;font-weight:700;cursor:pointer;white-space:nowrap}.lang-menu{display:none;position:absolute;right:0;top:44px;min-width:132px;padding:7px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:0 16px 35px rgba(15,23,42,.14);z-index:40}.language-switcher.open .lang-menu{display:grid}.lang-menu button{border:0;background:transparent;text-align:left;padding:9px 11px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--ink)}.lang-menu button:hover{background:#f3f7fd}.language-switcher button{font-family:inherit}
@media(max-width:900px){.language-switcher{margin-left:0}.lang-button{padding:8px 10px}.header-in{gap:14px}.brand{margin-right:auto}}
@media(max-width:560px){.brand span{font-size:14px}.brand img{width:30px;height:30px}.lang-button{font-size:11px;padding:7px 9px}.header-in{height:68px}.site-nav{top:68px}}