:root{--color-bg: #f6f8fc;--color-surface: #ffffff;--color-text: #0f172a;--color-muted: #64748b;--color-border: #dbe3ef;--color-primary: #2554d9;--color-primary-soft: #eef4ff;--color-warning: #8a5a00;--shadow-soft: 0 18px 45px rgba(15, 23, 42, .08);--radius: 8px;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--color-text);background:var(--color-bg)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--color-bg);color:var(--color-text)}a{color:inherit;text-decoration:none}a:hover{color:var(--color-primary)}.site-shell{min-height:100vh}.site-header{position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(219,227,239,.85);background:#fffffff0;backdrop-filter:blur(12px)}.site-nav{display:flex;width:min(1120px,calc(100% - 40px));min-height:72px;align-items:center;justify-content:space-between;gap:24px;margin:0 auto}.brand{display:flex;flex-direction:column;gap:2px;font-weight:800;line-height:1.1}.brand small{color:var(--color-muted);font-size:13px;font-weight:700}.nav-links{display:flex;align-items:center;gap:18px;color:var(--color-muted);font-size:15px;font-weight:700}.main{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:56px 0 72px}.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,440px);gap:44px;align-items:start;padding:36px 0 44px}.eyebrow{margin:0 0 14px;color:var(--color-primary);font-size:15px;font-weight:800}h1,h2,h3,p{margin-top:0}h1{margin-bottom:16px;font-size:clamp(32px,5vw,48px);line-height:1.12;letter-spacing:0}h2{margin-bottom:14px;font-size:clamp(22px,3vw,30px);line-height:1.24;letter-spacing:0}h3{margin-bottom:10px;font-size:19px;line-height:1.28;letter-spacing:0}.lead{margin-bottom:24px;color:var(--color-muted);font-size:18px;line-height:1.55}.button-row{display:flex;flex-wrap:wrap;gap:12px}.button{display:inline-flex;min-height:52px;align-items:center;justify-content:center;border-radius:var(--radius);padding:0 20px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);font-size:16px;font-weight:800}.button.primary{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.preview-card,.surface{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);box-shadow:var(--shadow-soft)}.preview-card{padding:22px}.phone-preview{border:1px solid var(--color-border);border-radius:18px;overflow:hidden;background:#fff}.phone-header{display:flex;justify-content:space-between;padding:22px;color:var(--color-muted);font-weight:800}.phone-menu{width:28px;height:18px;border-top:3px solid var(--color-text);border-bottom:3px solid var(--color-text);position:relative}.phone-menu:before{content:"";position:absolute;top:5px;left:0;width:100%;border-top:3px solid var(--color-text)}.phone-body{display:grid;gap:14px;padding:0 22px 22px}.mini-card{border:1px solid var(--color-border);border-radius:var(--radius);padding:18px}.mini-card.blue{border-color:#d8e4ff;background:var(--color-primary-soft)}.mini-card strong{display:block;margin-bottom:8px;font-size:17px}.mini-card span{color:var(--color-muted);line-height:1.5}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}.grid .surface h2{margin-bottom:12px;font-size:clamp(20px,2.2vw,24px);line-height:1.3}.surface{padding:24px}.surface p,.surface li{color:var(--color-muted);font-size:17px;line-height:1.7}.document{max-width:860px}.document h1{margin-bottom:12px;font-size:clamp(24px,3vw,34px);line-height:1.22}.document .doc-section h2,.document .surface h2{margin-bottom:10px;font-size:clamp(18px,2vw,22px);line-height:1.3}.document-header{margin-bottom:30px}.document-header p{color:var(--color-muted);font-size:17px;line-height:1.65}.notice{margin:24px 0;border:1px solid #f1d89b;border-radius:var(--radius);background:#fff9e8;color:var(--color-warning);padding:18px;line-height:1.65}.doc-section{margin-top:18px;padding:24px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface)}.doc-section ul{margin:12px 0 0;padding-left:20px}.doc-section li{margin:8px 0;color:var(--color-muted);line-height:1.7}.definition-list{display:grid;gap:12px;margin:0}.definition-list div{display:grid;grid-template-columns:180px minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--color-border)}.definition-list dt{color:var(--color-muted);font-weight:800}.definition-list dd{margin:0;line-height:1.6}.site-footer{border-top:1px solid var(--color-border);background:var(--color-surface)}.footer-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;width:min(1120px,calc(100% - 40px));min-height:112px;align-items:start;justify-content:space-between;gap:20px;margin:0 auto;padding:22px 0;color:var(--color-muted);font-size:14px;line-height:1.6}.footer-business{display:grid;gap:4px}.footer-business strong{color:var(--color-text);font-size:14px}.footer-business span{display:block}.footer-note{padding-top:6px;color:#7c8aa0;font-size:12px;line-height:1.5}.footer-contact{text-align:right}@media(max-width:820px){.site-nav,.footer-inner{width:min(100% - 28px,1120px)}.site-nav{align-items:flex-start;flex-direction:column;padding:18px 0}.nav-links{flex-wrap:wrap;gap:12px}.main{width:min(100% - 28px,1120px);padding-top:34px}.hero{grid-template-columns:1fr;gap:28px}.lead{font-size:17px}.grid{grid-template-columns:1fr}.definition-list div{grid-template-columns:1fr;gap:4px}.footer-inner{align-items:flex-start;grid-template-columns:1fr}.footer-contact{text-align:left}}