:root{--ink:#233c4d;--muted:#72818c;--blue:#1479b8;--line:#dce5eb;--bg:#f2f5f7}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:14px/1.55 Arial,'PingFang SC','Microsoft YaHei',sans-serif}[hidden]{display:none!important}button,input{font:inherit}button{padding:9px 13px;border:1px solid var(--line);border-radius:7px;color:var(--ink);background:#fff;cursor:pointer}button:hover{border-color:#96b9cf;background:#f4faff}button:disabled{opacity:.5;cursor:wait}.primary{background:var(--blue);border-color:var(--blue);color:white}.primary:hover{background:#08679f;color:white}input{padding:10px 12px;border:1px solid var(--line);border-radius:7px;width:100%;color:var(--ink);background:white}input:focus{outline:2px solid #bfdfee;outline-offset:1px}label{display:block;font-size:12px;font-weight:bold}label input{margin-top:6px}h1,h2,p{margin:0}h1{font-size:27px;letter-spacing:-.6px;margin:14px 0 8px}h2{font-size:19px}.muted{color:var(--muted)}.small{font-size:12px}.eyebrow{font-size:10px;letter-spacing:1.5px;color:var(--blue);font-weight:bold}.brand-mark{width:48px;height:48px;border-radius:12px;background:var(--blue);color:white;display:grid;place-items:center;font-size:29px;font-weight:bold;margin-bottom:24px}.login-page{min-height:100vh;display:grid;place-items:center;padding:25px;background:radial-gradient(ellipse at 20% 20%,#dceef8,transparent 50%),var(--bg)}.login-card{width:420px;max-width:100%;background:white;padding:38px;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 60px #28425110}.login-card form{margin-top:24px}.login-card label{margin-bottom:16px}.login-card .primary{width:100%;margin-top:5px}.login-card .small{margin-top:18px}.error{color:#ab3d3d;margin-top:12px;white-space:pre-wrap}.warning{padding:12px;background:#fff4d9;border-radius:6px;margin-top:15px;font-size:12px}.header{height:76px;display:flex;align-items:center;justify-content:space-between;background:white;border-bottom:1px solid var(--line);padding:0 26px;gap:15px}.brand{display:flex;gap:12px;align-items:center}.small-mark{width:36px;height:36px;font-size:23px;border-radius:8px;margin:0}.brand strong{font-size:17px}.brand small{display:block;font-size:10px;color:var(--muted)}.account{display:flex;gap:9px;align-items:center;font-size:12px}.layout{display:grid;grid-template-columns:290px minmax(0,1fr);min-height:calc(100vh - 76px)}.sidebar{background:white;border-right:1px solid var(--line);padding:24px 18px}.side-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.side-heading .eyebrow{margin-bottom:4px}.list-tools{display:flex;justify-content:space-between;align-items:center;margin:12px 0;font-size:11px;color:var(--muted)}.list-tools button{font-size:11px;padding:4px 10px}.invoice-card{width:100%;padding:13px 11px;text-align:left;border:1px solid transparent;background:#f7f9fa;margin-bottom:8px;word-break:break-word}.invoice-card.active{background:#edf7fd;border-color:#b5d8ee}.invoice-card strong{display:block;font-size:13px}.invoice-card small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.invoice-list .muted{font-size:12px;padding:16px 4px}.sidebar-note{font-size:11px;line-height:1.8;color:var(--muted);margin-top:22px}.main-panel{min-width:0}.empty-state{padding:100px 25px;text-align:center}.empty-state p{margin:12px 0}.empty-state button{margin-top:12px}.empty-icon{font-size:56px;color:#9dbdce;margin-bottom:15px}.editor-heading{padding:22px 26px 16px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px;justify-content:space-between;flex-wrap:wrap}.name-group{flex:1;min-width:230px}.name-group>label{color:var(--muted);font-size:11px;margin-bottom:5px}.name-group>input{font-size:19px;font-weight:bold;padding:7px 9px;border-color:transparent;border-bottom-color:var(--line);border-radius:0;max-width:580px}.save-info{display:flex;gap:15px;color:var(--muted);font-size:11px;margin-top:7px}.editor-actions{display:flex;gap:8px;flex-wrap:wrap}.version-note{padding:12px 26px;display:flex;align-items:center;gap:14px;background:#f9fbfc;border-bottom:1px solid var(--line)}.version-note label{color:var(--muted);font-size:11px;white-space:nowrap}.version-note input{max-width:450px;font-size:12px;padding:7px 10px}iframe{border:0;width:100%;height:1300px;background:var(--bg);display:block}.notice{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);z-index:100;background:#203f53;color:white;padding:12px 22px;border-radius:9px;box-shadow:0 8px 30px #203f5333;max-width:90%;white-space:pre-wrap}.notice.bad{background:#923939}dialog{width:660px;max-width:calc(100vw - 30px);max-height:85vh;border:1px solid var(--line);border-radius:14px;padding:25px;color:var(--ink);box-shadow:0 22px 80px #183b4c30}dialog::backdrop{background:#14293766}.dialog-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.history-card{padding:15px 0;border-bottom:1px solid var(--line)}.history-card h3{font-size:14px;margin:0 0 5px;word-break:break-word}.history-meta{font-size:11px;color:var(--muted);margin-bottom:10px}.history-actions{display:flex;gap:8px}.history-actions button{font-size:12px;padding:6px 10px}.more{width:100%;margin-top:12px;background:#f6f9fa}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}#passwordForm label{margin-top:15px}@media(max-width:1100px){.layout{grid-template-columns:240px minmax(0,1fr)}.editor-heading{padding:16px}.version-note{padding:12px 16px}.editor-actions button{font-size:12px}.account span{max-width:190px;overflow-wrap:anywhere}}@media(max-width:760px){.header{padding:12px;height:auto;flex-wrap:wrap}.account{flex-wrap:wrap}.layout{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);padding:16px}.invoice-list{max-height:260px;overflow:auto}.sidebar-note{margin-top:10px}.side-heading{margin-bottom:10px}.editor-heading{display:block}.editor-actions{margin-top:12px}.version-note{display:block}.version-note input{margin-top:6px}.empty-state{padding:50px 20px}.login-card{padding:28px}.account span{max-width:none}.save-info{flex-wrap:wrap}}

.library-tabs{display:flex;gap:8px;margin-top:12px}.library-tabs button{flex:1;font-size:12px}.library-tabs .selected{background:#edf7fd;border-color:#b5d8ee;color:#1479b8}.danger{color:#a13b3b;border-color:#e4bbbb}.danger:hover{background:#fff1f1}