body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--blue:#2563eb;--blue-hover:#1d4ed8;--blue-light:#eff6ff;--blue-mid:#3b82f6;--bg:#f9fafb;--white:#fff;--surface:#fff;--text:#111827;--text-sub:#6b7280;--text-muted:#9ca3af;--border:#e5e7eb;--border-light:#f3f4f6;--radius-sm:6px;--radius:10px;--radius-lg:16px;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000012, 0 2px 4px #0000000a;--shadow-lg:0 10px 30px #00000017, 0 4px 8px #0000000a;--ease:cubic-bezier(.4,0,.2,1);--duration:.2s}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Nanum Gothic,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;line-height:1.75}button{cursor:pointer;background:0 0;border:none;font-family:inherit}a{color:inherit;text-decoration:none}.site-header{z-index:100;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#ffffffeb;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;max-width:1280px;height:60px;margin:0 auto;padding:0 32px;display:flex}.logo-btn{padding:0;line-height:0}.logo{width:auto;height:32px;display:block}.site-nav{gap:2px;display:flex}.nav-btn{border-radius:var(--radius-sm);color:var(--text-sub);transition:color var(--duration) var(--ease), background var(--duration) var(--ease);letter-spacing:-.01em;padding:6px 14px;font-size:.875rem;font-weight:700}.nav-btn:hover{background:var(--border-light);color:var(--text)}.nav-btn.active{background:var(--blue-light);color:var(--blue)}.site-main{max-width:1280px;margin:0 auto;padding:0 32px 96px}.blog-hero{text-align:center;max-width:680px;margin:0 auto;padding:88px 24px 72px}.blog-hero-tag{background:var(--blue-light);color:var(--blue);letter-spacing:.04em;text-transform:uppercase;border-radius:999px;align-items:center;gap:6px;margin-bottom:24px;padding:5px 14px;font-size:.75rem;font-weight:700;display:inline-flex}.blog-hero-title{letter-spacing:-.025em;color:var(--text);word-break:keep-all;margin-bottom:20px;font-size:clamp(2rem,5vw,3.25rem);font-weight:800;line-height:1.25}.blog-hero-sub{color:var(--text-sub);margin-bottom:36px;font-size:1.125rem;line-height:1.7}.hero-cta{background:var(--blue);color:#fff;border-radius:var(--radius);letter-spacing:-.01em;transition:background var(--duration) var(--ease), transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);align-items:center;gap:6px;padding:13px 28px;font-size:.9375rem;font-weight:700;display:inline-flex;box-shadow:0 1px 2px #2563eb40}.hero-cta:hover{background:var(--blue-hover);transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.hero-cta:active{transform:translateY(0)}.columns-section{padding:0 0 48px}.section-header{flex-direction:column;gap:16px;margin-bottom:12px;display:flex}.section-title{color:var(--text-sub);letter-spacing:.06em;text-transform:uppercase;border-bottom:1px solid var(--border);margin-bottom:0;padding-bottom:16px;font-size:.875rem;font-weight:700}.blog-search-wrap{align-items:center;display:flex;position:relative}.blog-search-icon{color:var(--text-muted);pointer-events:none;font-size:1rem;line-height:1;position:absolute;left:13px}.blog-search-input{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--white);width:100%;color:var(--text);transition:border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);outline:none;padding:10px 36px 10px 38px;font-family:inherit;font-size:.9rem}.blog-search-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light)}.blog-search-input::placeholder{color:var(--text-muted)}.blog-search-clear{background:var(--border);width:22px;height:22px;color:var(--text-sub);cursor:pointer;transition:background var(--duration) var(--ease);border:none;border-radius:50%;justify-content:center;align-items:center;font-size:.9rem;line-height:1;display:flex;position:absolute;right:10px}.blog-search-clear:hover{background:#dde1e7}.filter-pills{flex-wrap:wrap;gap:6px;display:flex}.filter-pill{border:1px solid var(--border);background:var(--white);color:var(--text-sub);cursor:pointer;transition:border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);border-radius:999px;align-items:center;gap:5px;padding:5px 13px;font-family:inherit;font-size:.8rem;font-weight:700;display:inline-flex}.filter-pill:hover{border-color:var(--blue);color:var(--blue)}.filter-pill.active{background:var(--blue);border-color:var(--blue);color:#fff}.pill-count{opacity:.75;font-size:.7rem;font-weight:700}.result-count{color:var(--text-muted);margin-bottom:10px;font-size:.78rem}.column-list{border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;display:flex;overflow:hidden}.column-row{background:var(--white);cursor:pointer;border-bottom:1px solid var(--border);transition:background var(--duration) var(--ease);align-items:center;gap:14px;padding:15px 24px;display:flex;position:relative}.column-row:last-child{border-bottom:none}.column-row:after{content:"";opacity:0;box-shadow:inset 2px 0 0 var(--blue);pointer-events:none;transition:opacity var(--duration) var(--ease);position:absolute;inset:0}.column-row:hover{background:#fafbff}.column-row:hover:after{opacity:1}.row-category{color:var(--blue);background:var(--blue-light);white-space:nowrap;letter-spacing:.02em;border-radius:999px;flex-shrink:0;padding:2px 9px;font-size:.68rem;font-weight:700}.row-title{color:var(--text);word-break:keep-all;transition:color var(--duration) var(--ease);flex:1;font-size:.9375rem;font-weight:700;line-height:1.45}.column-row:hover .row-title{color:var(--blue)}.row-meta{flex-shrink:0;align-items:center;gap:10px;display:flex}.row-read{color:var(--text-muted);font-size:.75rem}.row-arrow{color:var(--blue);transition:transform var(--duration) var(--ease);font-size:.875rem;font-weight:700}.column-row:hover .row-arrow{transform:translate(3px)}.no-results{text-align:center;color:var(--text-muted);padding:48px 24px;font-size:.9rem}.article-wrap{max-width:680px;margin:0 auto;padding:48px 0 80px}.back-button{color:var(--text-sub);transition:color var(--duration) var(--ease), gap var(--duration) var(--ease);align-items:center;gap:6px;margin-bottom:32px;padding:8px 0;font-size:.875rem;font-weight:700;display:inline-flex}.back-button:hover{color:var(--blue);gap:10px}.back-button.bottom{margin-top:48px;margin-bottom:0}.article-meta{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:20px;display:flex}.article-tag{color:var(--blue);background:var(--blue-light);letter-spacing:.04em;text-transform:uppercase;border-radius:999px;padding:3px 12px;font-size:.7rem;font-weight:700}.article-date,.article-read{color:var(--text-muted);font-size:.8125rem}.article-title{letter-spacing:-.025em;color:var(--text);word-break:keep-all;margin-bottom:20px;font-size:clamp(1.625rem,4vw,2.25rem);font-weight:800;line-height:1.3}.article-lead{color:var(--text-sub);background:var(--blue-light);border-radius:var(--radius);border-left:3px solid var(--blue);margin-bottom:32px;padding:18px 22px;font-size:1rem;line-height:1.8}.article-divider{border:none;border-top:1px solid var(--border);margin-bottom:36px}.article-body{color:var(--text);font-size:1rem;line-height:1.9}.article-body h2{color:var(--text);border-bottom:2px solid var(--border-light);letter-spacing:-.015em;margin:48px 0 16px;padding-bottom:10px;font-size:1.25rem;font-weight:800}.article-body h3{color:var(--text);letter-spacing:-.01em;margin:28px 0 10px;font-size:1.0625rem;font-weight:800}.article-body p{margin:14px 0}.article-body ul,.article-body ol{margin:10px 0 16px;padding-left:22px}.article-body li{margin:7px 0}.article-body strong{color:var(--text);font-weight:800}.article-body hr{border:none;border-top:1px solid var(--border);margin:36px 0}.article-body blockquote{background:var(--bg);border-left:3px solid var(--blue);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-sub);margin:20px 0;padding:16px 20px;font-size:.9375rem}.article-body blockquote p{margin:0}.article-body table{border-collapse:collapse;width:100%;margin:20px 0 24px;font-size:.875rem;display:block;overflow-x:auto}.article-body thead{background:var(--bg)}.article-body th{color:var(--text);text-align:left;border:1px solid var(--border);letter-spacing:.01em;padding:10px 14px;font-size:.8125rem;font-weight:800}.article-body td{border:1px solid var(--border);vertical-align:top;padding:10px 14px}.article-body tr:nth-child(2n) td{background:#fafafa}.article-body code{background:var(--border-light);color:var(--blue);border-radius:4px;padding:2px 6px;font-family:Courier New,monospace;font-size:.875em}.tool-wrap{max-width:600px;margin:0 auto;padding:56px 0 72px}.tool-hero{text-align:center;margin-bottom:44px}.tool-title{letter-spacing:-.02em;word-break:keep-all;margin-bottom:12px;font-size:clamp(1.5rem,4vw,2rem);font-weight:800;line-height:1.3}.tool-subtitle{color:var(--text-sub);font-size:1rem;line-height:1.7}.search-form{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);flex-direction:column;gap:22px;margin-bottom:36px;padding:36px 40px;display:flex}.form-group{flex-direction:column;gap:8px;display:flex}.form-group label{color:var(--text);letter-spacing:.01em;font-size:.8125rem;font-weight:800}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.search-input{border:1px solid var(--border);border-radius:var(--radius);background:var(--white);color:var(--text);transition:border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);outline:none;padding:11px 16px;font-family:inherit;font-size:.9375rem}.search-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb1f}.search-button{background:var(--blue);color:#fff;border-radius:var(--radius);letter-spacing:-.01em;transition:background var(--duration) var(--ease), transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);padding:14px;font-size:1rem;font-weight:800;box-shadow:0 1px 2px #2563eb33}.search-button:hover{background:var(--blue-hover);transform:translateY(-1px);box-shadow:0 4px 12px #2563eb47}.search-button:active{transform:translateY(0)}.loading{text-align:center;padding:80px 0}.spinner{border:3px solid #2563eb1a;border-top-color:var(--blue);border-radius:50%;width:44px;height:44px;margin:0 auto 20px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--blue);letter-spacing:-.01em;margin-bottom:8px;font-size:1.0625rem;font-weight:800}.loading-sub{color:var(--text-muted);font-size:.875rem}.report-wrap{max-width:860px;margin:0 auto;padding:48px 0 72px}.report-content{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:52px 56px;font-size:.9375rem;line-height:1.875}.report-content h1{background:var(--blue);color:#fff;border-radius:var(--radius);letter-spacing:-.015em;margin:0 0 28px;padding:16px 24px;font-size:1.25rem;font-weight:800}.report-content h2{color:var(--text);border-bottom:2px solid var(--border-light);letter-spacing:-.015em;margin:36px 0 16px;padding-bottom:10px;font-size:1.125rem;font-weight:800}.report-content h3{letter-spacing:-.01em;margin:22px 0 10px;font-size:1rem;font-weight:800}.report-content p{margin:12px 0}.report-content ul,.report-content ol{margin:8px 0 14px;padding-left:22px}.report-content li{margin:6px 0}.report-content strong{font-weight:800}.report-content hr{border:none;border-top:1px solid var(--border);margin:28px 0}.report-content blockquote{background:var(--bg);border-left:3px solid var(--blue);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-sub);margin:16px 0;padding:12px 18px;font-size:.875rem}.report-content blockquote p{margin:0}.report-content table{border-collapse:collapse;width:100%;margin:16px 0 20px;font-size:.85rem;display:block;overflow-x:auto}.report-content thead{background:var(--bg)}.report-content th{color:var(--text);border:1px solid var(--border);text-align:left;padding:10px 14px;font-size:.8125rem;font-weight:800}.report-content td{border:1px solid var(--border);vertical-align:top;padding:10px 14px}.report-content tr:nth-child(2n) td{background:#fafafa}.reset-button{border:1px solid var(--border);border-radius:var(--radius);color:var(--text-sub);transition:border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);margin:36px auto 0;padding:11px 28px;font-size:.875rem;font-weight:700;display:block}.reset-button:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-light)}.ad-banner{border-radius:var(--radius-lg);max-width:640px;box-shadow:var(--shadow-md);transition:transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);margin:48px auto 0;display:block;overflow:hidden}.ad-banner:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}.ad-banner-img{width:100%;height:auto;display:block}.article-summary-box{border-radius:var(--radius-lg);background:linear-gradient(135deg,#eff6ff 0%,#f0f9ff 100%);border:1px solid #bfdbfe;margin:28px 0;padding:22px 26px}.summary-label{color:var(--blue);letter-spacing:.05em;text-transform:uppercase;margin-bottom:10px;font-size:.75rem;font-weight:800}.summary-text{color:var(--text);margin-bottom:14px;font-size:.9375rem;font-weight:700;line-height:1.8}.summary-stats{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.summary-stats li{color:var(--text-sub);border-top:1px solid #dbeafe;padding:5px 0;font-size:.8125rem}.faq-section{border-top:1px solid var(--border);margin:44px 0;padding-top:32px}.faq-title{color:var(--text);letter-spacing:-.01em;margin-bottom:18px;font-size:1.0625rem;font-weight:800}.faq-list{flex-direction:column;gap:6px;display:flex}.faq-item{border:1px solid var(--border);border-radius:var(--radius);transition:border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);overflow:hidden}.faq-item.open{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb14}.faq-q{background:var(--white);width:100%;color:var(--text);text-align:left;cursor:pointer;transition:background var(--duration) var(--ease);letter-spacing:-.01em;border:none;justify-content:space-between;align-items:flex-start;gap:14px;padding:15px 18px;font-family:inherit;font-size:.9rem;font-weight:800;display:flex}.faq-q:hover{background:var(--bg)}.faq-arrow{color:var(--blue);transition:transform var(--duration) var(--ease);flex-shrink:0;margin-top:3px;font-size:.65rem}.faq-item.open .faq-arrow{transform:rotate(180deg)}.faq-a{color:var(--text-sub);background:var(--bg);border-top:1px solid var(--border);margin:0;padding:14px 18px 16px;font-size:.875rem;line-height:1.8}.faq-a strong{color:var(--blue);margin-right:5px;font-weight:800}.author-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);align-items:flex-start;gap:18px;margin:44px 0 28px;padding:24px 28px;display:flex}.author-avatar{background:var(--bg);border-radius:var(--radius);border:1px solid var(--border);flex-shrink:0;padding:10px;font-size:2.25rem;line-height:1}.author-info{flex-direction:column;gap:6px;display:flex}.author-name{color:var(--text);letter-spacing:-.01em;font-size:.9375rem;font-weight:800}.author-desc{color:var(--text-sub);font-size:.875rem;line-height:1.7}.author-link{color:var(--blue);transition:gap var(--duration) var(--ease);align-items:center;gap:4px;font-size:.8125rem;font-weight:800;display:inline-flex}.author-link:hover{gap:8px}.site-footer{text-align:center;border-top:1px solid var(--border);color:var(--text-muted);padding:36px 24px;font-size:.8125rem}.footer-nav{margin-top:10px}.footer-nav a{color:var(--blue);transition:color var(--duration) var(--ease);font-size:.8125rem;font-weight:700}.footer-nav a:hover{color:var(--blue-hover)}@media (width<=768px){.header-inner{padding:0 20px}.site-main{padding:0 20px 72px}.blog-hero{padding:56px 0 48px}.column-row{gap:10px;padding:14px 18px}.row-read{display:none}.filter-pills{gap:5px}.filter-pill{padding:4px 11px;font-size:.76rem}.form-row{grid-template-columns:1fr}.search-form{padding:24px 22px}.report-content{padding:28px 22px}.article-wrap{padding:28px 0 48px}.tool-wrap{padding:40px 0 56px}.author-card{gap:14px;padding:18px 20px}}@media (width<=480px){.blog-hero-title,.article-title{letter-spacing:-.02em}}