:root{--bg-main: #f8fafc;--bg-card: #ffffff;--bg-sub: #f1f5f9;--text-main: #0f172a;--text-muted: #64748b;--border-color: #e2e8f0;--primary-color: #2563eb;--primary-hover: #1d4ed8;--header-bg: rgba(248, 250, 252, .85)}[data-theme=dark]{--bg-main: #020617;--bg-card: #0f172a;--bg-sub: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border-color: #334155;--primary-color: #3b82f6;--primary-hover: #60a5fa;--header-bg: rgba(2, 6, 23, .85)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard Variable,Pretendard,sans-serif;background-color:var(--bg-main);color:var(--text-main);display:flex;flex-direction:column;min-height:100vh}main{flex:1}.main-header{position:sticky;top:0;background-color:var(--header-bg);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-color);z-index:100}.header-container{max-width:1200px;margin:0 auto;padding:1rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:800;text-decoration:none;color:var(--text-main)}.logo span{color:var(--primary-color)}.header-controls{display:flex;gap:1rem}.icon-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-main);padding:.5rem;border-radius:8px;transition:.2s}.icon-btn:hover{background-color:var(--border-color)}.menu-overlay{position:fixed;top:0;left:0;width:100%;height:100vh;background-color:var(--bg-main);z-index:200;transform:translateY(-100%);transition:transform .3s ease-in-out;overflow-y:auto}.menu-overlay.active{transform:translateY(0)}.overlay-header{max-width:1200px;margin:0 auto;padding:1rem 1.5rem;display:flex;justify-content:flex-end}.overlay-content{max-width:650px;width:90%;margin:0 auto;padding:0 0 5rem}.menu-search-wrapper{position:sticky;top:0;background:var(--bg-main);padding:1rem 0;z-index:10}.menu-search-box{display:flex;align-items:center;background:var(--bg-sub);border:2px solid var(--border-color);border-radius:50px;padding:.8rem 1.5rem;transition:.3s}.menu-search-box:focus-within{border-color:var(--primary-color);box-shadow:0 0 15px #3b82f626}.search-icon{margin-right:.8rem;font-size:1.1rem}#menuSearchInput{background:transparent;border:none;color:var(--text-main);font-size:1.1rem;width:100%;outline:none}.menu-section{border-bottom:1px solid var(--border-color);padding-bottom:1.6rem;margin-bottom:2rem}.menu-section:last-child{border-bottom:none}.menu-section h3{color:var(--primary-color);margin-bottom:1.2rem;font-size:1rem;border-left:4px solid var(--primary-color);padding-left:12px}.menu-section ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:.8rem}.menu-section a{text-decoration:none;color:var(--text-main);font-weight:500;font-size:1.2rem;transition:.2s;display:block}.menu-section a:hover{color:var(--primary-color);transform:translate(10px)}footer{border-top:1px solid var(--border-color);background-color:var(--bg-sub);padding:4rem 1rem;margin-top:auto}.footer-container{max-width:900px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:1.5rem}.footer-disclaimer{font-size:.8rem;color:var(--text-muted);max-width:600px;text-align:center;margin:1rem 0;line-height:1.5}.footer-info{text-align:center;color:var(--text-muted);font-size:.9rem}.legal-links{display:flex;gap:1.5rem}.legal-links a{color:var(--text-muted);text-decoration:none;font-size:.85rem}.legal-links a:hover{color:var(--primary-color)}.page-wrapper{max-width:1200px;margin:0 auto;padding:1rem 1rem 4rem;color:var(--text-main)}.breadcrumb{display:flex;align-items:center;gap:.35rem;margin-bottom:2rem;font-size:.95rem;font-weight:500}.crumb-link{color:var(--text-muted);text-decoration:none;transition:color .2s}.crumb-link:hover{color:var(--primary-color)}.crumb-text{color:var(--text-muted)}.crumb-icon{width:14px;height:14px;color:var(--border-color)}.crumb-current{color:var(--primary-color);font-weight:600}.tool-hero{text-align:center;margin-bottom:3.5rem}.tool-hero h1{font-size:clamp(1.5rem,6vw,3.5rem);font-weight:900;margin-bottom:.8rem;letter-spacing:-1px}.accent{color:var(--primary-color)}.tool-hero p{font-size:clamp(.8rem,4.5vw,1.2rem);color:var(--text-muted);word-break:keep-all}.tool-container{background:var(--bg-card);padding:2rem;border-radius:24px;border:1px solid var(--border-color);box-shadow:0 15px 35px #00000008;margin-bottom:3rem}textarea{width:100%;height:300px;padding:1.5rem;border-radius:14px;box-sizing:border-box;border:2px solid var(--border-color);background:var(--bg-sub);color:var(--text-main);font-size:1rem;line-height:1.6;resize:vertical;outline:none}textarea:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.status-bar{display:flex;justify-content:flex-end;gap:1rem;margin-top:.6rem;font-size:.85rem;color:var(--text-muted);font-weight:600}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:2rem 0}.btn-primary,.btn-secondary{padding:1.2rem;border-radius:12px;font-size:1.15rem;font-weight:800;cursor:pointer}.btn-primary{background:var(--primary-color);color:#fff;border:none}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px)}.btn-secondary{background:transparent;color:var(--text-main);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:#fff}.utility-group{display:flex;justify-content:flex-end;gap:1rem}.btn-util{padding:.7rem 1.4rem;border-radius:8px;border:1px solid var(--border-color);background:transparent;cursor:pointer;font-weight:600;color:var(--text-main)}.btn-util:hover{background:var(--bg-sub)}.btn-danger{color:#ef4444;border-color:#ef444466}.btn-danger:hover{background:#ef44441a;border-color:#ef4444}.info-section{line-height:1.8}.info-section h2{margin:0 0 1rem;font-size:clamp(1.2rem,5vw,1.75rem);color:var(--text-main)}.section-divider{height:1px;background:linear-gradient(90deg,transparent,var(--border-color),transparent);margin:2.5rem}.spec-bg{background:var(--bg-sub);padding:2rem;border-radius:20px;border:1px solid var(--border-color)}.seo-content p{color:var(--text-muted);font-size:clamp(.85rem,3vw,1.05rem);word-break:keep-all;margin-bottom:1rem}.seo-content strong{color:var(--text-main)}.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.step-card{background:var(--bg-card);padding:2rem;border-radius:18px;border:1px solid var(--border-color);position:relative}.step-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.step-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.2rem}.step-number{background:var(--primary-color);color:#fff;font-size:.85rem;font-weight:800;padding:.3rem .8rem;border-radius:20px}.step-card h3{color:var(--text-main);font-size:1.25rem;margin:0}.step-card p{color:var(--text-muted);font-size:1rem;margin:0;word-break:keep-all;line-height:1.6}.comparison-table{width:100%;border-collapse:collapse;margin-top:2rem;background:var(--bg-card);border-radius:12px;overflow:hidden}.comparison-table th,.comparison-table td{padding:1.2rem;text-align:left;border-bottom:1px solid var(--border-color);color:var(--text-main)}.comparison-table th{background:var(--primary-color);color:#fff;font-weight:700;border-bottom:none}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.info-card{background:var(--bg-sub);padding:2rem;border-radius:18px;border:1px solid var(--border-color);transition:.3s}.info-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.info-card h3{color:var(--primary-color);margin-bottom:1rem;font-size:1.25rem}.info-card p{color:var(--text-muted);font-size:1rem;margin:0;word-break:keep-all}.faq-list{display:flex;flex-direction:column;gap:2rem}.faq-item strong{font-size:1.15rem;color:var(--text-main);margin-bottom:.5rem;display:block}.faq-item p{color:var(--text-muted);margin:0}.security-pledge{background:var(--bg-sub);border:2px dashed var(--border-color);padding:3rem;border-radius:24px;text-align:center}.pledge-inner h3{color:var(--text-main);margin-bottom:1rem;font-size:1.4rem}.pledge-inner p{color:var(--text-muted);word-break:keep-all}.warning-text{color:#ef4444!important;font-weight:700;margin-top:1.5rem;font-size:.95rem}@media(max-width:768px){.action-grid{grid-template-columns:1fr}.spec-bg,.security-pledge{padding:1.5rem}.step-grid{grid-template-columns:1fr}.comparison-table{font-size:.85rem}}