:root{--bg:#fbfbfc;--panel:#fff;--text:#202124;--muted:#666b73;--line:#e5e7eb;--accent:#c62828;--accent-soft:#fff1f1;--link:#315f96;--shadow:0 10px 30px rgba(0,0,0,.06);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Segoe UI","Yu Gothic UI","Yu Gothic","Meiryo","Malgun Gothic",sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1080px,calc(100% - 36px));margin:0 auto}
header{position:sticky;top:0;z-index:20;background:rgba(251,251,252,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;letter-spacing:-.02em;color:var(--text);font-size:21px}
.navlinks{display:flex;align-items:center;gap:20px;font-size:14px}.lang{display:flex;gap:6px}.lang button{border:1px solid var(--line);background:var(--panel);color:var(--muted);padding:6px 9px;border-radius:9px;cursor:pointer;font-size:12px}.lang button.active{border-color:#bbb;color:var(--text);font-weight:700}
.hero{padding:88px 0 64px}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:center}.eyebrow{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;text-transform:uppercase}
h1{font-size:clamp(42px,7vw,72px);line-height:1.05;margin:12px 0 22px;letter-spacing:-.045em}.lead{font-size:clamp(18px,2.2vw,22px);color:var(--muted);max-width:700px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-block;padding:12px 17px;border-radius:12px;border:1px solid var(--line);background:var(--panel);color:var(--text);font-weight:700}.btn.primary{background:var(--text);border-color:var(--text);color:#fff}
.demo{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.demo .name{color:var(--link);font-weight:700;font-size:15px;margin-bottom:4px}.demo .msg{font-size:24px;line-height:1.8}ruby rt{color:var(--accent);font-size:.52em;font-weight:700}.demo .note{margin-top:14px;font-size:13px;color:var(--muted)}
section{padding:58px 0}.section-title{font-size:32px;letter-spacing:-.025em;margin:0 0 10px}.section-sub{color:var(--muted);margin:0 0 28px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.card h3{margin:0 0 9px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:15px}.callout{background:var(--accent-soft);border:1px solid #f1c9c9;border-radius:16px;padding:22px}
.footer{border-top:1px solid var(--line);padding:30px 0 50px;color:var(--muted);font-size:13px}.footer-row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.legal{padding:60px 0 80px}.legal article{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,5vw,52px);box-shadow:var(--shadow)}.legal h1{font-size:42px}.legal h2{font-size:21px;margin-top:34px}.legal p,.legal li{color:#383c42}.legal .meta{color:var(--muted)}
.lang-block{display:none}.lang-block.active{display:block}
.lang-block[data-lang="ko"]{word-break:keep-all}.lang-block[data-lang="ko"] h1{font-size:clamp(40px,5.8vw,64px)}@media (max-width:780px){.hero{padding-top:56px}.hero-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.navlinks>a{display:none}.demo .msg{font-size:21px}}