:root{--bg:#fbfaf7;--panel:#fff;--panel-2:#f3f1ec;--text:#1a2333;--muted:#5b6472;--brand:#1d4ed8;--brand-2:#b45309;--line:#e2ded4;--warn:#9a3412;--ok:#166534}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.75 Georgia,Times New Roman,ui-serif,serif}.container{max-width:820px;margin:0 auto;padding:0 20px}.skip-link{background:var(--brand);color:#fff;z-index:10;padding:8px 14px;position:absolute;top:0;left:-999px}.skip-link:focus{top:12px;left:12px}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.header{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#fbfaf7f2;position:sticky;top:0}.navigation{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px;display:flex}.brand{color:var(--text);letter-spacing:.2px;align-items:baseline;gap:2px;font-family:ui-sans-serif,system-ui,sans-serif;font-size:21px;display:inline-flex}.brand:hover{text-decoration:none}.brand strong{color:var(--brand)}.nav-links{flex-wrap:wrap;gap:18px;display:flex}.header-link{color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif;font-size:15px}.header-link:hover{color:var(--text);text-decoration:none}main{min-height:60vh}.hero{padding:44px 0 6px}h1,h2,h3{letter-spacing:-.2px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}h1{margin:0 0 14px;font-size:33px;line-height:1.25}h2{margin:34px 0 12px;font-size:23px}h3{margin:24px 0 8px;font-size:18px}p{margin:10px 0}.lead{color:var(--muted);font-size:17.5px}.muted{color:var(--muted)}.answer{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:10px;margin:18px 0;padding:16px 20px;font-size:17px}.answer strong{color:var(--brand)}.status-line{background:var(--panel-2);border:1px solid var(--line);color:var(--muted);border-radius:999px;margin-bottom:14px;padding:4px 14px;font-family:ui-sans-serif,system-ui,sans-serif;font-size:14px;display:inline-block}.status-line b{color:var(--text)}.updated{color:var(--muted);font-family:ui-sans-serif,system-ui,sans-serif;font-size:13.5px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:22px 0;display:grid}.card{background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:18px;display:block}.card:hover{border-color:var(--brand);text-decoration:none}.card h2{margin:0 0 6px;font-size:18px}.card p{color:var(--muted);margin:0;font-size:14.5px;line-height:1.55}table.data{border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:12px;width:100%;margin:18px 0;font-family:ui-sans-serif,system-ui,sans-serif;font-size:15px;overflow:hidden}table.data th{text-align:left;background:var(--panel-2);border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.4px;color:var(--muted);padding:10px 12px;font-size:14px}table.data td{border-bottom:1px solid var(--line);vertical-align:top;padding:10px 12px}table.data tr:last-child td{border-bottom:none}.faq{margin:10px 0}.faq h3{margin-bottom:4px}.notice{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;margin:18px 0;padding:14px 18px;font-size:15.5px}.notice b{color:var(--warn)}.footer{border-top:1px solid var(--line);margin-top:56px;padding:26px 0 40px}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:24px;font-family:ui-sans-serif,system-ui,sans-serif;display:flex}.footer-name{font-weight:600}.footer p{color:var(--muted);max-width:460px;font-size:14px}.footer nav{flex-direction:column;gap:6px;font-size:14.5px;display:flex}.tool{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin:20px 0;padding:20px;font-family:ui-sans-serif,system-ui,sans-serif}.tool label{color:var(--muted);margin:12px 0 4px;font-size:14px;display:block}.tool select,.tool input{border:1px solid var(--line);width:100%;max-width:320px;color:var(--text);background:#fff;border-radius:8px;padding:8px 10px;font-size:15px}.tool-result{border-top:1px dashed var(--line);margin-top:16px;padding-top:14px}.tool-result .big{color:var(--brand);font-size:26px;font-weight:700}.tool-result table{margin-top:10px}@media (max-width:640px){h1{font-size:27px}.hero{padding-top:30px}}