:root{color-scheme:light;--bg: #f3f7f2;--dot: #dfe9dc;--card: #ffffff;--border: #e2eadf;--border-dashed: #c7d6c2;--text: #3b433b;--text-dim: #7c877b;--accent: #47775a;--accent-strong: #38614a;--accent-tint: rgba(71, 119, 90, .1);--btn: #7da98a;--btn-hover: #6f9b7c;--ok: #4e9a6b;--ok-text: #2f6b46;--ok-bg: #eef6ef;--ok-border: #c2ddc9;--err: #b8503c;--err-bg: #faf0ed;--err-border: #ecccc2;--radius-card: 16px;--radius-btn: 14px;--shadow: 0 1px 2px rgba(52, 64, 54, .04), 0 10px 28px rgba(52, 64, 54, .06);font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans CJK JP,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100vh;color:var(--text);background-color:var(--bg);background-image:radial-gradient(var(--dot) 1px,transparent 1px);background-size:18px 18px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;justify-content:center}.app{width:100%;max-width:680px;padding:56px 28px 80px}.app h1{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:800;letter-spacing:-.01em;color:var(--accent);margin:0 0 6px}.app-icon{width:40px;height:40px;border-radius:10px;box-shadow:0 2px 6px #3440362e}.manual-link{margin-left:auto;font-size:12.5px;font-weight:700;color:var(--accent);text-decoration:none;border:1px solid var(--border-dashed);background:var(--card);border-radius:999px;padding:7px 16px;transition:border-color .12s ease,background .12s ease}.manual-link:hover{border-color:var(--accent);background:#fafcf9}.app .subtitle{color:var(--text-dim);font-size:13.5px;line-height:1.6;margin-bottom:8px}.app .tsv-note{color:var(--text-dim);font-size:11.5px;line-height:1.55;opacity:.78;margin-bottom:32px}.dropzone{border:1.5px dashed var(--border-dashed);border-radius:var(--radius-card);background:var(--card);box-shadow:var(--shadow);padding:28px 26px;cursor:pointer;transition:border-color .14s ease,background .14s ease,box-shadow .14s ease}.dropzone:hover,.dropzone.drag-over{border-color:var(--accent);background:#fafcf9}.dropzone.filled{border-style:solid;border-color:var(--ok-border);background:var(--ok-bg)}.dropzone .label{display:flex;align-items:baseline;gap:8px;font-weight:700;font-size:15px;color:var(--text);margin-bottom:6px}.dropzone .step{color:var(--accent);font-weight:800;font-size:16px;flex:none}.dropzone .hint{color:var(--text-dim);font-size:12.5px;line-height:1.55;padding-left:24px}.dropzone .fileline{display:flex;align-items:center;gap:8px;margin-top:14px;padding-left:24px;font-size:13px;color:var(--text);word-break:break-all}.dropzone .fileline.err{color:var(--err)}.check{flex:none;display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:var(--ok);color:#fff;font-size:11px;font-weight:800;line-height:1}.section-gap{height:18px}.row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:18px 0 6px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:20px 24px}.row label{display:flex;align-items:baseline;gap:8px;font-size:14px;font-weight:700;color:var(--text);min-width:150px}.row label .step{color:var(--accent);font-weight:800;font-size:16px}input[type=number]{background:#fff;color:var(--text);border:1px solid var(--border-dashed);border-radius:10px;padding:9px 12px;font-size:15px;width:110px;font-family:inherit;transition:border-color .12s ease,box-shadow .12s ease}input[type=number]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-tint)}.hint-inline{font-size:12.5px;color:var(--text-dim)}.offset-row{flex-direction:column;align-items:stretch;gap:16px}.offset-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.offset-calc{border-top:1px dashed var(--border-dashed);padding-top:14px}.calc-title{font-size:12.5px;font-weight:700;color:var(--accent);margin-bottom:10px}.calc-line{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}.calc-field{display:flex;flex-direction:column;gap:4px}.calc-cap{font-size:11px;color:var(--text-dim)}.calc-field input[type=number]{width:92px}.calc-eq,.calc-result{font-size:12.5px;color:var(--text-dim);padding-bottom:9px}.calc-result b{color:var(--accent);font-size:13.5px}button.primary{background:var(--btn);color:#fff;border:none;border-radius:var(--radius-btn);padding:16px 20px;font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;margin-top:22px;width:100%;box-shadow:0 8px 20px #7da98a66;transition:background .13s ease,transform .1s ease,box-shadow .13s ease}button.primary:hover:not(:disabled){background:var(--btn-hover);box-shadow:0 10px 24px #6f9b7c73}button.primary:active:not(:disabled){transform:scale(.985)}button.primary:disabled{background:#e6ece3;color:#a7b2a4;box-shadow:none;cursor:not-allowed}.result{margin-top:20px;padding:16px 18px;border-radius:var(--radius-card);font-size:13.5px;line-height:1.6;border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow)}.result.ok{background:var(--ok-bg);border-color:var(--ok-border);color:var(--ok-text)}.result.err{background:var(--err-bg);border-color:var(--err-border);color:var(--err);white-space:pre-wrap}.result a{color:var(--accent);font-weight:700}.result a:hover{color:var(--accent-strong)}.toc-details{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow);margin-bottom:4px}.toc-details>summary{list-style:none;cursor:pointer;padding:18px 24px;display:flex;align-items:baseline;gap:8px;font-weight:700;font-size:15px;border-radius:var(--radius-card)}.toc-details>summary::-webkit-details-marker{display:none}.toc-details>summary:after{content:"▸";margin-left:auto;color:var(--text-dim);transition:transform .14s ease}.toc-details[open]>summary:after{transform:rotate(90deg)}.toc-details>summary .step{color:var(--accent);font-weight:800;font-size:16px}.toc-summary-label{flex:none;white-space:nowrap}.toc-summary-hint{font-weight:400;font-size:11.5px;color:var(--text-dim);min-width:0}.toc-body{padding:0 24px 22px;display:flex;flex-direction:column;gap:14px}.seg{display:inline-flex;gap:6px;flex-wrap:wrap}.seg button{border:1px solid var(--border-dashed);background:#fff;color:var(--text-dim);border-radius:999px;padding:7px 14px;font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:border-color .12s ease,background .12s ease,color .12s ease}.seg button:hover{border-color:var(--accent);color:var(--text)}.seg button.active{background:var(--accent-tint);border-color:var(--accent);color:var(--accent-strong)}.seg.small button{padding:5px 12px;font-size:12px}.toc-dropzone{padding:20px 22px}.toc-dropzone .label{font-size:14px}.toc-dropzone .hint{padding-left:0}.toc-file-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.toc-file-list li{display:flex;align-items:center;gap:8px;font-size:13px;word-break:break-all}.toc-file-name{flex:1}.toc-range{display:flex;flex-direction:column;gap:10px;border:1.5px dashed var(--border-dashed);border-radius:var(--radius-card);padding:18px 22px;font-size:13px}.toc-range-file.warn{color:var(--err)}.toc-range-inputs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--text-dim);font-size:12.5px}.toc-range-inputs input[type=number]{width:84px}.toc-settings{border:none;margin:0;padding:14px 0 0;border-top:1px dashed var(--border-dashed);display:flex;flex-direction:column;gap:12px}.toc-setting-line{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.toc-setting-label{font-size:12.5px;font-weight:700;color:var(--accent);min-width:84px}.toc-level-types{display:flex;gap:10px;flex-wrap:wrap}.toc-level-types label{display:flex;flex-direction:column;gap:3px;font-size:11px;color:var(--text-dim)}select{background:#fff;color:var(--text);border:1px solid var(--border-dashed);border-radius:10px;padding:7px 8px;font-size:12.5px;font-family:inherit}select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-tint)}.toc-check{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text);cursor:pointer}.toc-check input{accent-color:var(--accent);width:15px;height:15px}button.primary.toc-run,button.primary.toc-use{margin-top:4px;padding:13px 18px;font-size:14px}.bar{height:6px;border-radius:3px;background:var(--border);overflow:hidden}.bar-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .2s ease}.toc-result{margin-top:0}.toc-preview{display:flex;flex-direction:column;gap:12px;border-top:1px dashed var(--border-dashed);padding-top:14px}.toc-preview-head{font-size:13px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.warn-text{color:var(--err)}.toc-table-wrap{max-height:420px;overflow:auto;border:1px solid var(--border);border-radius:12px}.toc-table{width:100%;border-collapse:collapse;font-size:12.5px}.toc-table th{position:sticky;top:0;background:var(--bg);color:var(--text-dim);font-size:11px;font-weight:700;text-align:left;padding:8px;border-bottom:1px solid var(--border);z-index:1}.toc-table td{padding:4px 6px;border-bottom:1px solid var(--border);vertical-align:middle}.toc-table tr:last-child td{border-bottom:none}.toc-table tr.row-warn td{background:var(--err-bg)}.toc-table .col-no{width:34px;color:var(--text-dim);text-align:right;font-size:11px}.toc-table .col-page{width:84px}.toc-table .col-del{width:34px;text-align:center}.level-inputs{display:flex;gap:4px}.level-input{width:44px;text-align:center}.toc-table input[type=text],.toc-table input[type=number]{background:#fff;color:var(--text);border:1px solid transparent;border-radius:8px;padding:6px 8px;font-size:12.5px;font-family:inherit;width:100%}.toc-table input:hover{border-color:var(--border-dashed)}.toc-table input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.toc-table .page-input{width:72px}.del-btn{border:none;background:transparent;color:var(--text-dim);font-size:15px;line-height:1;cursor:pointer;padding:4px 6px;border-radius:6px}.del-btn:hover{color:var(--err);background:var(--err-bg)}.toc-table-actions{display:flex;gap:10px;flex-wrap:wrap}.btn-secondary{border:1px solid var(--border-dashed);background:#fff;color:var(--text);border-radius:10px;padding:8px 14px;font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:border-color .12s ease,background .12s ease}.btn-secondary:hover:not(:disabled){border-color:var(--accent);background:#fafcf9}.btn-secondary:disabled{color:#a7b2a4;cursor:not-allowed}.copy-page-note{border:1px solid #e6dcb4;background:#fbf7e8;color:#79683a;border-radius:12px;padding:10px 14px;font-size:12.5px;line-height:1.7}.copy-page-note b{color:#5f4f22}.toc-note{border:1px solid var(--ok-border);background:var(--ok-bg);color:var(--ok-text);border-radius:12px;padding:12px 16px;font-size:12.5px;line-height:1.7}.tsv-preview{border:1px solid var(--border);border-radius:12px;background:#fafcf9}.tsv-preview summary{cursor:pointer;padding:10px 14px;font-size:12.5px;font-weight:700;color:var(--accent)}.tsv-preview pre{margin:0;padding:12px 14px;border-top:1px dashed var(--border-dashed);font-size:11.5px;line-height:1.7;max-height:240px;overflow:auto;tab-size:12}.toc-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.toc-actions .btn-secondary{padding:12px 16px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}