:root{--bg: #f3efe6;--surface: #faf8f4;--text: #1a1814;--muted: #6b6560;--primary: #b45309;--primary-hover: #92400e;--border: #d9d2c6;--radius: 8px;--shadow: 0 4px 20px rgba(26, 24, 20, .06);--font: "Noto Serif SC", "Songti SC", serif;--mono: "JetBrains Mono", "Cascadia Code", monospace;--header-h: 56px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;min-height:100vh;display:flex;flex-direction:column}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:960px;width:100%;margin:0 auto;padding:0 20px}.container-wide{max-width:1400px;width:100%;margin:0 auto;padding:0 24px}.site-footer{margin-top:auto;border-top:1px solid var(--border);padding:32px 0 28px;color:var(--muted);font-size:.85rem;text-align:center}.hero{text-align:center;padding:32px 0 40px}.site-header{background:#faf8f4eb;backdrop-filter:blur(8px);border-bottom:1px solid var(--border);padding:12px 0;position:sticky;top:0;z-index:200}.site-header .inner{display:flex;align-items:center;justify-content:space-between}.logo{font-size:1.2rem;font-weight:700;color:var(--text);text-decoration:none}.logo:hover{text-decoration:none;color:var(--primary)}.nav a{margin-left:20px;color:var(--muted);font-size:.9rem}.nav a:hover{color:var(--primary);text-decoration:none}main{flex:1;width:100%;padding:28px 0 48px}.hero h1{font-size:2.25rem;font-weight:700;margin-bottom:10px}.hero p{color:var(--muted);max-width:480px;margin:0 auto;font-size:.95rem}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;width:100%}.home-content{width:100%}.tool-card{background:var(--surface);border:1px solid var(--border);border-left:3px solid transparent;border-radius:var(--radius);padding:20px;display:block;color:inherit;text-decoration:none;transition:transform .2s,box-shadow .2s}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-left-color:var(--primary);text-decoration:none}.tool-card .icon{width:42px;height:42px;background:#f5ebe0;color:var(--primary);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:600;font-size:.8rem;margin-bottom:14px}.tool-card h3{font-size:1.05rem;margin-bottom:6px}.tool-card p{color:var(--muted);font-size:.88rem}.tool-card .tags{margin-top:12px;display:flex;gap:6px;flex-wrap:wrap}.tag{font-size:.72rem;font-family:var(--mono);background:var(--bg);color:var(--muted);padding:2px 8px;border-radius:4px;border:1px solid var(--border)}.tool-layout{display:flex;gap:28px;align-items:flex-start;width:100%}.tool-sidebar{width:74px;flex-shrink:0;position:sticky;top:calc(var(--header-h) + 16px)}.tool-sidebar-title{font-size:.75rem;color:var(--muted);letter-spacing:.08em;margin-bottom:10px;font-family:var(--mono)}.tool-sidebar a{display:flex;align-items:center;gap:6px;padding:7px 8px;margin-bottom:4px;border-radius:6px;font-size:.8rem;color:var(--text);text-decoration:none;border-left:2px solid transparent;min-width:0}.tool-sidebar a:hover{background:#b4530914;text-decoration:none}.tool-sidebar a.active{background:#b453091f;border-left-color:var(--primary);color:var(--primary);font-weight:600}.tool-mini-icon{flex:0 0 18px;width:18px;text-align:center;font-family:var(--mono);font-size:.72rem;color:var(--primary);white-space:nowrap;line-height:1}.tool-mini-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-sidebar-mobile{display:none}.tool-sidebar-mobile a{flex-shrink:0;padding:6px 14px;border-radius:20px;font-size:.82rem;background:var(--surface);border:1px solid var(--border);color:var(--text);text-decoration:none}.tool-sidebar-mobile a.active{background:var(--primary);border-color:var(--primary);color:#fff}.tool-main{flex:1;min-width:0;width:100%}.tool-page .tool-panel,.tool-page .json-split,.tool-page .compress-workspace,.tool-page .annotate-panel{width:100%}.tool-page h1{font-size:1.75rem;margin-bottom:10px;font-weight:700;display:inline-block;vertical-align:baseline;margin-right:10px}.tool-page .intro{color:var(--muted);margin-bottom:16px;font-size:.86rem;display:inline-block;vertical-align:baseline}.tool-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}.tool-panel label,.field-label{display:block;font-weight:600;margin-bottom:8px;font-size:.88rem}.tool-panel textarea,.tool-panel input[type=text],.tool-panel select,.tool-panel input[type=file]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:6px;font-family:var(--mono);font-size:.85rem;background:#fff;resize:vertical}.tool-panel textarea{min-height:160px;line-height:1.5}.tool-panel textarea.json-editor{tab-size:2}.json-pane-body .json-editor{flex:1;min-height:0;height:100%}.tool-panel textarea.output-readonly{background:var(--bg);color:var(--text);cursor:default}.field-hint{font-size:.78rem;color:var(--muted);margin-top:6px;font-family:var(--mono)}.btn-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.btn{padding:8px 16px;border:none;border-radius:6px;font-size:.88rem;cursor:pointer;background:var(--primary);color:#fff}.btn:hover{background:var(--primary-hover)}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.msg{margin-top:12px;padding:10px 12px;border-radius:6px;font-size:.88rem}.msg.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.msg.success{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.section{margin-top:32px}.section h2{font-size:1.1rem;margin-bottom:12px}.section ul{padding-left:20px;color:var(--muted);font-size:.92rem}.section li{margin-bottom:6px}.section code{font-family:var(--mono);font-size:.85em;background:var(--bg);padding:1px 6px;border-radius:4px}.json-expand-rules{margin-top:10px;padding-top:10px;border-top:1px dashed var(--border)}.json-expand-rules label{display:block;font-size:.78rem;color:var(--muted);margin-bottom:6px}.json-expand-rules textarea{width:100%;min-height:52px;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-family:var(--mono);font-size:.78rem;resize:vertical}.json-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:stretch}.json-split>.tool-panel{min-width:0}.json-pane{display:flex;flex-direction:column;min-height:calc(100vh - 260px);margin-bottom:0}.json-pane-body{flex:1;min-height:0;display:flex;flex-direction:column}.json-pane-foot{flex-shrink:0;margin-top:auto;padding-top:8px}.json-workbench.is-json-page-full{position:fixed;inset:0;z-index:600;background:var(--bg);padding:12px;display:flex;flex-direction:column;overflow:hidden}.json-workbench.is-json-page-full .json-split{flex:1;min-height:0}.json-workbench.is-json-page-full .json-pane{min-height:0;height:100%}body.json-page-full{overflow:hidden}.json-output-wrap{flex:1;min-height:0;height:100%;overflow:hidden;border:1px solid var(--border);border-radius:6px;background:#fff;display:flex;flex-direction:column;position:relative}#json-editor-host{flex:1;min-height:0;display:flex;flex-direction:column}#json-editor-host .jse-main{flex:1;min-height:0;border:none;--jse-font-family-mono: var(--mono);--jse-font-size-mono: .82rem;--jse-theme-color: var(--primary);--jse-theme-color-highlight: var(--primary-hover);--jse-key-color: #1a4fb3;--jse-value-color-string: #1a7f37;--jse-value-color-number: #0550ae;--jse-value-color-boolean: #953800;--jse-value-color-null: #6b6560;--jse-background-color: #fff;--jse-hover-background-color: rgba(180, 83, 9, .06);--jse-selection-background-color: rgba(180, 83, 9, .14)}.json-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.json-panel-header label{margin-bottom:0}.json-header-actions{display:flex;gap:8px}.btn-sm{padding:4px 12px;font-size:.78rem}.json-placeholder{color:var(--muted);padding:12px}.json-minify{flex:1;min-height:0;margin:0;padding:12px;overflow:auto;white-space:pre-wrap;word-break:break-all;font-family:var(--mono);font-size:.82rem}.hanzi-add-panel{margin-bottom:16px}.hanzi-add-row{display:flex;gap:10px;margin-top:6px}.hanzi-text-input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:1.1rem;font-family:var(--font)}.hanzi-char-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.hanzi-char-chip{display:inline-flex;align-items:center;gap:4px;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:#fff;font-size:1.25rem;cursor:pointer}.hanzi-char-chip.active{border-color:var(--primary);background:#fdf6ee;box-shadow:0 0 0 1px var(--primary)}.hanzi-char-chip em{font-style:normal;font-size:.9rem;color:var(--muted);padding:0 2px}.hanzi-char-chip em:hover{color:#c0392b}.hanzi-current{margin-bottom:12px;font-size:1rem}.hanzi-current strong{font-size:1.6rem;margin:0 6px;color:var(--primary)}.hanzi-dual{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.hanzi-box-panel h2{font-size:1rem;margin-bottom:4px}.hanzi-tip{font-size:.82rem;color:var(--muted);margin-bottom:10px}.tianzi-wrap{width:min(100%,300px);aspect-ratio:1;margin:0 auto;padding:8px;border:2px solid var(--primary);border-radius:4px;background:linear-gradient(to right,transparent 49.5%,#d9d2c6 49.5%,#d9d2c6 50.5%,transparent 50.5%),linear-gradient(to bottom,transparent 49.5%,#d9d2c6 49.5%,#d9d2c6 50.5%,transparent 50.5%),#fffef9;box-shadow:inset 0 0 0 1px 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var(--border);border-radius:6px;overflow:hidden}.thumb-item img{width:100%;height:100%;object-fit:cover}.thumb-del{position:absolute;top:2px;right:2px;width:20px;height:20px;border:none;border-radius:50%;background:#0000008c;color:#fff;cursor:pointer;font-size:14px;line-height:1}.annotate-toolbar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.annotate-toolbar .tool-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.fabric-wrap{overflow:auto;max-width:100%;border:1px solid var(--border);border-radius:var(--radius);background:#fff;text-align:center}.fabric-wrap canvas{max-width:100%;height:auto!important}.annotate-hint{margin-bottom:10px}.compress-btn-row{justify-content:center;align-items:center}.size-input-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.size-input-row input[type=number]{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-family:var(--mono);font-size:.85rem}.img-slot-upload{cursor:pointer;position:relative}.img-slot-upload input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}.compress-workspace{display:grid;grid-template-columns:5fr 2fr 5fr;gap:16px;align-items:start}.compress-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.compress-controls{display:flex;flex-direction:column;gap:14px}.img-slot{aspect-ratio:4/3;border:2px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.88rem;background:var(--bg);overflow:hidden}.img-slot img{max-width:100%;max-height:100%;object-fit:contain}.img-meta{margin-top:10px;font-family:var(--mono);font-size:.78rem;color:var(--muted);line-height:1.6}.compress-summary{margin-top:16px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);font-family:var(--mono);font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:12px 20px}.compress-summary strong{color:var(--text)}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:20px 12px;text-align:center;cursor:pointer;font-size:.85rem;color:var(--muted)}.upload-zone:hover{border-color:var(--primary)}.upload-zone input{display:none}.range-row{display:flex;align-items:center;gap:8px}.range-row input[type=range]{flex:1}.range-val{font-family:var(--mono);font-size:.82rem;min-width:36px;text-align:right;color:var(--primary)}@media(max-width:900px){.tool-layout{flex-direction:column;gap:0;width:100%}.tool-sidebar{display:none}.tool-sidebar-mobile{display:flex;overflow-x:auto;gap:8px;width:100%;padding-bottom:12px;margin-bottom:16px;-webkit-overflow-scrolling:touch}.tool-main{width:100%;max-width:100%}.json-split,.compress-workspace{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.tool-grid{grid-template-columns:1fr}}