:root {
  --primary:#1e3a8a;--primary-light:#2563eb;--text-main:#0f172a;--text-sub:#334155;
  --text-muted:#64748b;--bg-main:#f8fafc;--bg-card:#fff;--primary-bg:#eff6ff;
  --accent-light:#f59e0b;--border-color:#e2e8f0;--control-border:#64748b;
  --notice-bg:#fffbeb;--notice-text:#92400e;--danger-bg:#fef2f2;--danger-text:#991b1b;
  --success-bg:#ecfdf5;--success-text:#065f46;--radius-sm:8px;--radius-md:12px;
  --radius-lg:18px;--shadow:0 2px 6px rgba(15,23,42,.06);--header-height:76px;
}
.direct-answer{font-size:17px;font-weight:650;line-height:1.85;color:var(--text-main)}
.table-wrap{max-width:100%;overflow-x:auto;margin-top:16px}
.reference-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px;table-layout:fixed}
.reference-table caption{text-align:left;font-weight:700;color:var(--text-sub);padding:0 0 10px}
.reference-table th,.reference-table td{padding:12px 10px;vertical-align:top;border-bottom:1px solid var(--border-color);overflow-wrap:anywhere}
.reference-table th{width:25%;color:var(--text-sub);font-weight:700}
.reference-table a{display:inline-block;max-width:100%}
.hub-overview .reference-table th{width:32%}
@media(max-width:480px){.reference-table th,.reference-table td{padding:10px 7px}.reference-table th{width:30%}.hub-overview .reference-table th{width:35%}}
*{box-sizing:border-box;min-width:0}html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--bg-main);color:var(--text-main);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--primary);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select{touch-action:manipulation}
button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--primary-light);outline-offset:4px}
[hidden]{display:none!important}.skip-link{position:fixed;top:-100px;left:16px;z-index:100;background:#fff;padding:12px}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border-color);z-index:20}
.header-inner{max-width:840px;margin:auto;min-height:var(--header-height);padding:12px 20px;display:flex;align-items:center;gap:20px;justify-content:space-between}
.brand{display:flex;gap:10px;align-items:center;color:var(--text-main);font-size:24px;font-weight:850;letter-spacing:-1px;text-decoration:none;white-space:nowrap}
.brand img{width:36px;height:36px}.brand span:last-child{color:var(--primary-light)}.desktop-nav{display:flex;gap:20px;align-items:center}.desktop-nav a{text-decoration:none;font-size:14px;font-weight:700;min-height:44px;display:flex;align-items:center;color:var(--text-sub)}
.desktop-nav a[aria-current=page]{color:var(--primary-light)}.menu-button{display:none;border:1px solid var(--control-border);border-radius:8px;background:#fff;padding:8px 12px;min-height:44px;color:var(--primary)}
.mobile-nav{max-width:800px;margin:auto;padding:8px 20px 20px}.mobile-nav a{display:block;padding:12px 0;text-decoration:none;border-bottom:1px solid var(--border-color)}
.container{width:100%;max-width:840px;margin:auto;padding:0 20px}.hero{padding:56px 0 28px}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--primary);font-size:13px;font-weight:750;letter-spacing:.08em}.eyebrow::before{content:"";width:24px;height:3px;background:var(--accent-light)}
h1,h2,h3{line-height:1.4;letter-spacing:-.035em;margin:0 0 12px}h1{font-size:38px;font-weight:850;margin-top:16px}h1 em{font-style:normal;color:var(--primary-light)}h2{font-size:25px;font-weight:800}h3{font-size:20px;font-weight:750}
p{margin:0 0 16px}.hero p{color:var(--text-sub);max-width:650px;margin-top:16px}.hero .lead{font-size:17px}.hero-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--text-muted);margin-top:20px}
.section{margin:36px 0}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}.section-head h2{margin:0}.section-head p{margin:0;color:var(--text-muted);font-size:14px}
.card,.calc-form-card,.procedure-step-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:26px;margin-bottom:20px}
.tool-heading{display:flex;justify-content:space-between;gap:16px;align-items:center;border-bottom:1px solid var(--border-color);padding-bottom:20px;margin-bottom:24px}.tool-heading h2{font-size:23px;margin:0}.tool-heading p{font-size:14px;color:var(--text-muted);margin:4px 0 0}.tool-icon{width:48px;height:48px;display:grid;place-items:center;background:var(--primary-bg);color:var(--primary);border-radius:12px;font-size:24px;flex-shrink:0}
.step-label{display:flex;align-items:center;gap:9px;font-weight:750;margin-bottom:12px}.step-dot{width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;display:inline-grid;place-items:center;font-size:12px;flex-shrink:0}
fieldset{border:0;margin:0 0 24px;padding:0}legend{padding:0;margin-bottom:12px}.choice-list{display:flex;flex-direction:column;gap:8px}.choice{position:relative;display:flex;align-items:center;gap:12px;min-height:50px;padding:10px 16px;border:2px solid var(--control-border);border-radius:var(--radius-sm);cursor:pointer;background:#fff}.choice:has(input:checked){background:var(--primary-bg);border-color:var(--primary-light);color:var(--primary);font-weight:700}.choice input{width:18px;height:18px;accent-color:var(--primary-light);margin:0;flex-shrink:0}.choice small{margin-left:auto;color:var(--text-sub);font-size:12px}
.field{margin:0 0 24px}.field label{display:block;font-weight:750;margin-bottom:10px}.field input,.field select,.field textarea{width:100%;min-height:52px;border:2px solid var(--control-border);border-radius:8px;background:white;color:var(--text-main);padding:12px 14px}.field textarea{min-height:130px;resize:vertical}.field input[aria-invalid=true]{border-color:var(--danger-text)}.help,.muted{color:var(--text-muted);font-size:14px}.help{margin:8px 0 0}.field-error{color:var(--danger-text);font-size:14px;margin-top:8px}
.button{min-height:48px;padding:12px 20px;border:2px solid transparent;border-radius:10px;background:var(--primary);color:#fff;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;line-height:1.5}.button--wide{width:100%}.button--secondary{background:#fff;color:var(--primary);border-color:var(--control-border)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.form-actions{padding-top:20px;border-top:1px solid var(--border-color)}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.tag{padding:8px 12px;border:1px solid var(--control-border);border-radius:24px;background:#fff;color:var(--text-sub);min-height:44px;font-size:13px}.tag[aria-pressed=true]{background:var(--primary);color:#fff;border-color:var(--primary)}
.calc-result-card{border:1px solid var(--border-color);border-radius:18px;background:#fff;overflow:hidden;box-shadow:var(--shadow);margin:24px 0;scroll-margin-top:100px}.result-header{background:var(--primary);border-bottom:4px solid var(--accent-light);padding:20px 26px;color:#fff}.result-header h2{font-size:21px;margin:0}.result-header p{color:#dbeafe;font-size:14px;margin:4px 0 0}.result-body{padding:26px}.result-body h3{font-size:24px}.risk{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:6px;font-size:13px;font-weight:750}.risk--safe{color:var(--success-text);background:var(--success-bg)}.risk--caution{color:var(--notice-text);background:var(--notice-bg)}.risk--danger{color:var(--danger-text);background:var(--danger-bg)}
.summary-row{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:12px 0;border-bottom:1px solid var(--border-color)}.summary-row span:first-child{color:var(--text-sub)}.summary-row strong{max-width:70%;text-align:right}.geo-summary-box{background:var(--primary-bg);border-left:4px solid var(--primary-light);padding:24px;border-radius:0 12px 12px 0;margin:24px 0}.geo-summary-box h2{font-size:20px}.geo-summary-box p:last-child{margin:0}
.notice{padding:18px 20px;border-radius:12px;margin:20px 0;border:1px solid transparent}.notice p:last-child{margin:0}.notice--caution{background:var(--notice-bg);color:var(--notice-text);border-color:#fcd34d}.notice--danger{background:var(--danger-bg);color:var(--danger-text);border-color:#fca5a5}.notice--info{background:var(--primary-bg);color:var(--primary)}.notice--success{background:var(--success-bg);color:var(--success-text)}
.link-list{display:flex;flex-direction:column;gap:12px}.hub-card,.nexus-card{display:flex;align-items:center;gap:16px;text-decoration:none;background:#fff;border:1px solid var(--border-color);border-radius:12px;padding:20px;box-shadow:var(--shadow);color:var(--text-main);min-height:92px}.hub-card .icon{width:48px;height:48px;flex-shrink:0;display:grid;place-items:center;border-radius:12px;background:var(--primary-bg);color:var(--primary);font-size:20px;font-weight:800}.hub-card .icon--mobile{background:#f5f3ff;color:#5b21b6}.hub-card .icon--recovery{background:#f0fdfa;color:#115e59}.hub-card strong,.nexus-card strong{display:block;font-size:18px;line-height:1.5}.hub-card small,.nexus-card small{display:block;color:var(--text-muted);font-size:14px;line-height:1.6;margin-top:4px}.hub-card .arrow,.nexus-card .arrow{margin-left:auto;color:var(--primary);font-size:20px;flex-shrink:0}.nexus-card{background:var(--primary-bg);border-left:4px solid var(--primary-light)}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-muted);margin:20px 0}.breadcrumbs{padding:24px 0 0;font-size:13px;color:var(--text-muted)}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none}.breadcrumbs li+li:before{content:"/";margin-right:8px;color:var(--text-muted)}.breadcrumbs a{text-decoration:none}.toc ol{padding-left:24px;margin:12px 0 0}.toc li a{display:block;min-height:44px;padding:8px 0;font-size:16px}.procedure-step-card{scroll-margin-top:100px}.step-header{display:flex;gap:12px;align-items:baseline;margin-bottom:16px}.step-header .number{font:800 25px/1.3 ui-monospace,monospace;color:var(--primary-light)}.step-header h2{font-size:22px;margin:0}.procedure-step-card ol{padding-left:24px}.procedure-step-card li{margin:8px 0}.checkpoint{padding-top:12px;border-top:1px solid var(--border-color);font-size:14px;color:var(--text-sub)}
.command{background:#0f172a;border-radius:10px;padding:20px;color:#e2e8f0;margin:16px 0}.command pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-all;font:14px/1.8 ui-monospace,monospace;margin:0}.command button{color:#fff;background:#1e3a8a;margin-top:12px;border:1px solid #94a3b8;border-radius:6px;min-height:44px;padding:8px 14px}
details{background:#fff;border:1px solid var(--border-color);border-radius:10px;padding:0 20px;margin-bottom:10px}summary{cursor:pointer;font-weight:700;min-height:56px;padding:16px 0}details p{padding:0 0 8px;color:var(--text-sub)}.sources{padding-left:20px}.sources li{margin-bottom:12px}.official-box{background:white;border:1px solid var(--border-color);border-top:4px solid var(--primary);border-radius:12px;padding:24px}.official-box .url{color:var(--text-sub);font-size:14px;word-break:break-all;margin:8px 0}.ad-placement{margin:48px 0;min-height:250px;background:#fff;border:1px solid var(--border-color);padding:12px;text-align:center}.ad-label{display:block;font-size:12px;color:var(--text-muted);letter-spacing:.15em;margin-bottom:8px}.ad-placement ins{display:block;width:100%}.affiliate-box{background:#fff;border:1px solid var(--border-color);padding:22px;border-radius:12px;margin:24px 0}
.save-button{background:white;border:1px solid var(--control-border);color:var(--primary);padding:8px 14px;border-radius:8px;min-height:44px}.save-button[aria-pressed=true]{background:var(--primary-bg);border-color:var(--primary-light)}.checklist label{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--border-color);cursor:pointer}.checklist input{width:20px;height:20px;accent-color:var(--primary);flex-shrink:0;margin-top:4px}.progress{color:var(--primary);font-weight:750;margin-bottom:12px}.filter-status{color:var(--text-sub);margin:16px 0}.empty{padding:28px;border:1px dashed var(--control-border);border-radius:12px;background:white}.site-footer{margin-top:64px;padding:32px 0;background:#fff;border-top:1px solid var(--border-color);color:var(--text-muted);font-size:13px}.footer-brand{color:var(--text-main);font-size:20px;font-weight:800}.footer-links{display:flex;gap:4px 20px;flex-wrap:wrap;margin:16px 0}.footer-links a{padding:8px 0;min-height:44px}.footer-note{max-width:650px}.footer-bottom{padding-top:16px;border-top:1px solid var(--border-color);display:flex;gap:8px 16px;flex-wrap:wrap}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:50;max-width:calc(100% - 32px);padding:12px 20px;background:#0f172a;color:white;border-radius:10px;box-shadow:0 4px 20px #0002;font-size:14px}.manual-copy{margin-top:16px}.manual-copy input{width:100%;padding:12px;border:2px solid var(--control-border);border-radius:8px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.page-intro{padding:32px 0 8px}.page-intro h1{font-size:34px}.article-content ul{padding-left:22px}.article-content .card h2{margin-top:0}.top-link{display:inline-flex;min-height:44px;align-items:center}.result-stale{color:var(--notice-text);background:var(--notice-bg);padding:12px 16px;margin:0}.category-count{display:inline-flex;border:1px solid var(--border-color);border-radius:24px;padding:4px 12px;font-size:12px;color:var(--text-sub)}
@media(hover:hover){.button:hover{background:#172f73}.button--secondary:hover{background:var(--primary-bg)}.hub-card:hover,.nexus-card:hover{border-color:var(--primary-light);box-shadow:0 4px 14px #1e3a8a12}.tag:hover,.save-button:hover{background:var(--primary-bg)}}
@media(max-width:1060px){.desktop-nav{display:none}.menu-button{display:block}}
@media(max-width:600px){:root{--header-height:68px}.container{padding:0 16px}.header-inner{padding:10px 16px}.hero{padding-top:32px}h1{font-size:29px}.page-intro h1{font-size:28px}h2{font-size:23px}.hero .lead{font-size:16px}.card,.calc-form-card,.procedure-step-card{padding:20px}.tool-heading{padding-bottom:16px;margin-bottom:20px}.tool-heading h2{font-size:21px}.result-header,.result-body{padding:20px}.hub-card,.nexus-card{padding:16px;gap:12px}.hub-card strong,.nexus-card strong{font-size:17px}.hub-card .icon{width:40px;height:40px}.summary-row{flex-direction:column;gap:4px}.summary-row strong{max-width:100%;text-align:left}.choice small{display:none}.actions .button{width:100%}.geo-summary-box{padding:20px}.official-box{padding:20px}.section{margin:32px 0}.section-head{gap:8px}.step-header h2{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none;transition:none}}