.column-shell{max-width:900px;margin:0 auto;padding:24px 24px 64px;color:#16213d}.column-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 24px}.column-tabs a,.column-tabs button{padding:12px 16px;border:1px solid #d7e1dc;border-radius:12px;text-decoration:none;background:white;color:#214e46;font:inherit}.column-tabs [aria-current=page]{background:#2f6f63;color:white}.column-intro h1{font:600 clamp(30px,5vw,46px)/1.1 Georgia,serif;margin:12px 0}.column-intro p{max-width:64ch;line-height:1.6}.column-policy,.column-panel{border:1px solid #d7e1dc;border-radius:16px;padding:20px;margin:22px 0;background:#f1f6f3}.column-policy summary{cursor:pointer;font-weight:700}.column-policy p{line-height:1.65}.column-row{border-bottom:1px solid #ded9ce;padding:20px 0}.column-row h2{font-size:21px;line-height:1.4;margin:10px 0}.column-row a{color:#16213d}.column-meta{font-size:13px;color:#52685f}.column-body{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.85}.column-article h2{font-size:20px;margin-top:30px}.column-article h1{font-size:clamp(26px,5vw,38px);line-height:1.25;overflow-wrap:anywhere}.column-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.column-actions a{display:inline-block}.column-shell textarea{resize:vertical}.column-shell [hidden]{display:none!important}.column-shell input,.column-shell textarea{font:inherit;font-size:16px}.column-shell button{min-height:44px;cursor:pointer}.column-shell a:focus-visible,.column-shell button:focus-visible,.column-shell summary:focus-visible{outline:3px solid #2f6f63;outline-offset:3px}.column-skip{position:absolute;left:-10000px}.column-skip:focus{left:12px;top:12px;z-index:100;background:white;padding:16px}.column-empty{padding:28px 0;line-height:1.7}.column-link-card{display:block;padding:18px;border-left:4px solid #2f6f63;background:#eef5f1;border-radius:8px;margin:18px 0;text-decoration:none;color:#214e46}.column-link-card span{display:block;font-size:13px;margin-bottom:6px}@media(max-width:600px){.column-shell{padding:18px 16px 40px}.column-tabs{gap:6px}.column-tabs a,.column-tabs button{padding:11px 12px;font-size:13px}.column-policy,.column-panel{padding:16px}.platform-nav{gap:14px;flex-wrap:wrap}}