:root{--navy:#13283a;--navy2:#1d3b54;--green:#20a84b;--light:#f4f7f9;--line:#d8e0e5;--text:#18242d;--white:#fff}
*{box-sizing:border-box}html,body{height:100%;margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#eef2f4}body{display:flex;flex-direction:column;overflow:hidden}
a{color:inherit}.topbar{height:74px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 20px;box-shadow:0 2px 7px rgba(0,0,0,.2);z-index:5}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:46px;height:46px;border-radius:9px;background:var(--green);display:grid;place-items:center;font-weight:800;letter-spacing:.5px}.brand-name{font-size:20px;font-weight:800}.brand-sub{font-size:13px;opacity:.85;margin-top:2px}.contact{display:flex;gap:8px;align-items:center;font-size:14px}.contact a{text-decoration:none}.contact a:hover{text-decoration:underline}.menu-button{display:none;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;font-size:24px;border-radius:6px;padding:4px 10px}.layout{flex:1;display:flex;min-height:0}.sidebar{width:245px;background:#fff;border-right:1px solid var(--line);padding:15px 12px;overflow:auto;z-index:4}.side-title{font-size:11px;font-weight:800;letter-spacing:1.4px;color:#687985;padding:6px 9px 10px}.nav-link{display:block;width:100%;text-align:left;border:0;background:transparent;padding:10px 12px;margin:2px 0;border-radius:7px;font-size:14px;cursor:pointer;color:#273945}.nav-link:hover{background:#edf5ef}.nav-link.active{background:var(--navy);color:#fff;font-weight:700}.side-actions{border-top:1px solid var(--line);margin-top:13px;padding-top:13px;display:grid;gap:8px}.action{display:block;padding:10px 12px;border:1px solid var(--navy2);border-radius:7px;text-decoration:none;text-align:center;font-size:13px;font-weight:700}.action.primary{background:var(--green);border-color:var(--green);color:#fff}.help{font-size:11px;line-height:1.45;color:#667984;margin:13px 5px}.viewer-wrap{flex:1;min-width:0;display:flex;flex-direction:column;background:#545b60}.viewer-toolbar{height:44px;background:#eef2f4;border-bottom:1px solid #cfd8de;display:flex;align-items:center;justify-content:center;gap:14px;padding:5px}.tool-button{border:1px solid #aebbc4;background:#fff;border-radius:6px;padding:7px 12px;cursor:pointer}.tool-button:hover{background:#f7f9fa}.tool-button.small{padding:6px 9px}.page-jump{display:flex;align-items:center;gap:6px;font-size:13px}.page-jump input{width:72px;padding:6px;border:1px solid #aebbc4;border-radius:5px}iframe{width:100%;height:100%;border:0;background:#5b5b5b}.fallback{background:#fff;margin:20px;padding:20px}footer{min-height:34px;background:var(--navy);color:#dfe9ef;display:flex;align-items:center;justify-content:center;gap:22px;font-size:11px;padding:6px 15px;z-index:5}footer a{text-decoration:none}
@media(max-width:800px){body{overflow:hidden}.topbar{height:66px;padding:0 12px}.brand-mark{width:38px;height:38px}.brand-name{font-size:16px}.brand-sub{font-size:11px}.contact{display:none}.menu-button{display:block}.sidebar{position:fixed;left:-270px;top:66px;bottom:31px;width:260px;box-shadow:4px 0 15px rgba(0,0,0,.25);transition:left .2s ease}.sidebar.open{left:0}.viewer-toolbar{justify-content:space-between;gap:4px}.tool-button{padding:6px 8px;font-size:12px}.page-jump label{display:none}.page-jump input{width:58px}.layout{height:calc(100vh - 97px)}footer{min-height:31px;font-size:10px;gap:8px;flex-wrap:wrap}}