:root{color-scheme:dark;--bg: #2b2d31;--panel: #1e1f22;--border: #3a3d44;--text: #e6e6e6;--muted: #9aa0a6;--green: #3fb950}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}.app{display:flex;flex-direction:column;height:100%}.toolbar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--border)}.title{font-size:16px;font-weight:600;margin:0 6px 0 0}.spacer{flex:1}button{background:#3a3d44;color:var(--text);border:1px solid #4a4d55;border-radius:6px;padding:6px 14px;cursor:pointer;font-size:14px}button:hover:not(:disabled){background:#454953}button:disabled{color:#777;background:#33353a;cursor:not-allowed}button.primary{background:var(--green);border:none;color:#0d1117;font-weight:600}button.primary:hover:not(:disabled){background:#46c95a}button.primary:disabled{background:#2f5a37;color:#88a}.chk{display:inline-flex;align-items:center;gap:6px;color:#c8c8c8;-webkit-user-select:none;user-select:none}.badge{font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.badge.ready{color:var(--green);border-color:var(--green)}.badge.failed{color:#ff6b6b;border-color:#ff6b6b}.pager{display:flex;align-items:center;gap:10px;padding:8px 14px;border-bottom:1px solid var(--border);background:var(--panel)}.pager-info{color:var(--text);display:inline-flex;align-items:center;gap:6px}.page-input{width:52px;padding:3px 6px;text-align:center;color:var(--text);background:#1e1f22;border:1px solid var(--border);border-radius:4px}.page-input:focus{outline:none;border-color:var(--green)}.page-input::-webkit-outer-spin-button,.page-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.pager-hint{color:var(--muted);font-size:12px}.content{flex:1;display:flex;gap:10px;padding:10px 14px;min-height:0}.viewer{flex:3;display:flex;background:var(--panel);border:1px solid var(--border);border-radius:8px;overflow:auto;padding:12px}.viewer.drag{border-color:var(--green);background:#1b2a1d}.canvas{margin:auto;max-width:100%;height:auto;border-radius:4px}.placeholder{margin:auto;color:#8a8f98;text-align:center;line-height:1.8;padding:40px}.placeholder-hint{margin-top:12px;font-size:13px;color:#6e747d}.loading-box{display:flex;flex-direction:column;align-items:center;gap:12px}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.result{flex:2;display:flex;flex-direction:column;min-width:280px}.result-bar{display:flex;align-items:center;gap:8px;margin-bottom:6px}.result-bar>span:first-child{color:#c8c8c8}.text{flex:1;resize:none;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px;font-size:14px;line-height:1.6;font-family:inherit}.text:focus{outline:none;border-color:var(--green)}.statusbar{display:flex;align-items:center;gap:12px;padding:8px 14px;border-top:1px solid var(--border);color:var(--muted);font-size:13px}.feedback-link{margin-left:auto;color:var(--green);text-decoration:none;white-space:nowrap}.feedback-link:hover{text-decoration:underline}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{width:320px;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:18px;box-shadow:0 12px 32px #00000073}.modal-title{font-size:15px;font-weight:600;margin-bottom:10px}.modal-body{color:var(--muted);margin-bottom:10px}.modal-input{width:100%;padding:8px 10px;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:6px}.modal-input:focus{outline:none;border-color:var(--green)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.dl-link{color:var(--green);text-decoration:none;border:1px solid var(--green);border-radius:6px;padding:6px 14px;font-size:14px}.dl-link:hover{background:#3fb9501f}.download{display:flex;flex-direction:column;height:100%}.dl-main{flex:1;overflow:auto;padding:20px 24px 32px;max-width:920px;width:100%;margin:0 auto}.dl-intro{color:var(--text);line-height:1.7;margin:4px 0 18px}.dl-warn{background:#3a2a1d;border:1px solid #8a5a2b;color:#f0c089;border-radius:8px;padding:10px 14px;margin-bottom:18px;line-height:1.6}.dl-warn code,.dl-foot code,.dl-help code{background:var(--panel);border:1px solid var(--border);border-radius:4px;padding:1px 5px;font-size:12px}.dl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.dl-card{position:relative;display:block;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;text-decoration:none;color:var(--text);transition:border-color .15s,transform .15s}.dl-card:hover{border-color:var(--green);transform:translateY(-2px)}.dl-card.rec{border-color:var(--green);box-shadow:0 0 0 1px var(--green) inset}.dl-card.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.dl-rec-tag{position:absolute;top:10px;right:10px;background:var(--green);color:#0d1117;font-size:11px;font-weight:700;border-radius:999px;padding:2px 8px}.dl-card-title{font-size:15px;font-weight:600;margin-bottom:4px}.dl-card-hint{color:var(--muted);font-size:13px;margin-bottom:12px}.dl-card-file{color:var(--green);font-size:12px;word-break:break-all}.dl-card-size{margin-top:6px;color:var(--muted);font-size:12px;min-height:16px}.dl-foot{color:var(--muted);line-height:1.7;margin-top:22px}.dl-foot a{color:var(--green)}.dl-help{margin-top:18px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:12px 16px}.dl-help summary{cursor:pointer;color:var(--text);font-weight:600}.dl-help ul{margin:12px 0 4px;padding-left:18px;color:var(--muted);line-height:1.8}