:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;color:#1f2937;background:#f7f9fc;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;display:flex;flex-direction:column}.site-header{background:#fff;border-bottom:1px solid #e5eaf1}.header-inner{width:min(1440px,calc(100% - 48px));min-height:88px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:13px}.brand-mark{width:39px;height:39px;display:grid;place-items:center;border-radius:9px;background:#e8f3ff;color:#1976d2;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-weight:800}h1,h2,h3,p{margin:0}.brand h1{font-size:18px;line-height:1.35;letter-spacing:-.2px}.brand p{margin-top:3px;color:#718096;font-size:13px}.local-badge{border:1px solid #bfe5cf;border-radius:99px;color:#24734d;background:#effaf4;padding:5px 10px;font-size:12px;white-space:nowrap}.main-content{width:min(1440px,calc(100% - 48px));flex:1;margin:36px auto 48px}.tab-bar{display:flex;overflow-x:auto;gap:3px;padding:5px;background:#edf1f6;border-radius:11px;scrollbar-width:thin}.tab-button{flex:0 0 auto;color:#536174;background:transparent;border:0;border-radius:7px;padding:10px 14px;font-size:14px;transition:background-color .15s,color .15s,box-shadow .15s}.tab-button:hover{color:#234c7a}.tab-button.active{background:#fff;color:#1769b0;box-shadow:0 1px 3px #1834501f;font-weight:650}.tool-panel{min-height:464px;margin-top:20px;padding:32px;background:#fff;border:1px solid #e4eaf1;border-radius:13px;box-shadow:0 7px 20px #1d2f4509}.tool-content{width:100%}.narrow-tool{max-width:760px}.tool-heading{margin-bottom:25px}.tool-heading h2{color:#1e2a39;font-size:21px;letter-spacing:-.3px}.tool-heading p{margin-top:8px;color:#718096;font-size:14px;line-height:1.65}.action-row{display:flex;align-items:center;gap:10px;margin-bottom:19px}.action-wrap{flex-wrap:wrap}.button{min-height:38px;padding:0 15px;border:1px solid #ced8e4;border-radius:7px;background:#fff;color:#405167;font-size:14px;font-weight:600;transition:border-color .15s,background-color .15s,color .15s}.button:hover{background:#f5f9fd;border-color:#aabed2}.button-primary{border-color:#72b5ec;background:#e4f2ff;color:#1267ad}.button-primary:hover{border-color:#4b9cdd;background:#d7edff}.message{margin:-7px 0 17px;padding:10px 12px;border-radius:7px;font-size:13px}.message-error{color:#b63838;background:#fff1f1;border:1px solid #ffd1d1}.editor-grid,.timestamp-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.field-label{display:block;color:#3f4d60;font-size:13px;font-weight:650;line-height:1.5}.code-area,.text-input{width:100%;margin-top:7px;outline:0;color:#233244;border:1px solid #d8e0e9;border-radius:7px;background:#fff;transition:border-color .15s,box-shadow .15s}.code-area{min-height:278px;resize:vertical;padding:13px;font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace}.compact-area{min-height:170px;margin-bottom:18px}.text-input{height:40px;padding:0 12px;font-size:14px}.code-area:focus,.text-input:focus{border-color:#64aae0;box-shadow:0 0 0 3px #64aae029}.code-area[readonly],.readonly-input{background:#f8fafc;color:#526174;cursor:default}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.single-form{max-width:800px}.input-action-row{display:flex;gap:10px;margin:7px 0 19px}.input-action-row .text-input{margin:0}.input-action-row .button{flex:0 0 auto}.current-time-card{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:29px 0 17px;padding:16px 17px;border:1px solid #dce8f4;border-radius:9px;background:#f7fbff}.current-time-card h3{font-size:14px;color:#2b4967}.current-time-card p{margin-top:4px;font-size:12px;color:#708295}.count-pill{margin-left:auto;border-radius:99px;background:#f0f4f8;color:#607084;padding:8px 12px;font-size:13px;white-space:nowrap}.ad-slot{display:flex;align-items:center;justify-content:center;gap:10px;min-height:74px;margin-top:20px;padding:14px 20px;border:1px dashed #d5dee8;border-radius:10px;background:#fbfcfe;color:#8491a0;font-size:12px}.ad-slot span{color:#718096;font-weight:650}.ad-slot small{color:#9aa6b4;font-size:12px}.tool-guide{margin-top:30px;padding:24px;border:1px solid #e4eaf1;border-radius:13px;background:#fff}.tool-guide h2{color:#263548;font-size:18px}.tool-guide>p{margin-top:7px;color:#718096;font-size:13px}.tool-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}.tool-guide article{padding:14px;border:1px solid #e8edf3;border-radius:8px;background:#fbfcfe}.tool-guide h3{color:#33506e;font-size:14px}.tool-guide article p{margin-top:6px;color:#718096;font-size:13px;line-height:1.65}.site-footer{padding:19px 24px;border-top:1px solid #e5eaf1;color:#788697;background:#fff;text-align:center;font-size:12px;line-height:1.6}.support-area{display:flex;justify-content:center;align-items:center;gap:9px;margin-top:7px}.support-link{color:#3978af;font-weight:650;text-decoration:none}.support-link:hover{color:#1c609e;text-decoration:underline}.select-input{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}.key-value-list{margin-top:20px;overflow:hidden;border:1px solid #e0e7ef;border-radius:8px}.key-value-row{display:grid;grid-template-columns:180px minmax(0,1fr);gap:14px;padding:10px 13px;border-bottom:1px solid #edf1f5;font-size:13px}.key-value-row:last-child{border-bottom:0}.key-value-row span{color:#64748b;font-weight:650}.key-value-row code{overflow-wrap:anywhere;color:#334155}.diff-table-wrap{margin-top:22px;overflow:auto;border:1px solid #e0e7ef;border-radius:8px}.diff-table{width:100%;border-collapse:collapse;min-width:720px;font-size:13px;text-align:left}.diff-table th,.diff-table td{padding:11px 13px;border-bottom:1px solid #edf1f5;vertical-align:top}.diff-table th{background:#f8fafc;color:#607084;font-size:12px}.diff-table tr:last-child td{border-bottom:0}.diff-新增 td:nth-child(2){color:#188451;font-weight:700}.diff-删除 td:nth-child(2){color:#c04b4b;font-weight:700}.diff-变更 td:nth-child(2){color:#a66a13;font-weight:700}.regex-controls{display:grid;grid-template-columns:minmax(0,1fr) 130px auto;align-items:end;gap:10px;margin-bottom:19px}.regex-controls .button{margin-bottom:0}.match-results{margin-top:19px;padding:15px;border:1px solid #e0e7ef;border-radius:8px;background:#f8fafc;color:#526174;font-size:13px}.match-results ol{display:grid;gap:7px;margin:12px 0 0;padding-left:23px}.match-results li{display:flex;gap:12px;align-items:baseline}.match-results code{overflow-wrap:anywhere;color:#1e5e9b}.match-results span{color:#8491a0}@media (max-width: 700px){.header-inner,.main-content{width:min(100% - 28px,1440px)}.header-inner{min-height:76px}.brand h1{font-size:16px}.local-badge{display:none}.main-content{margin-top:22px}.tool-panel{min-height:auto;padding:22px 17px}.editor-grid,.timestamp-grid{grid-template-columns:1fr}.code-area{min-height:195px}.input-action-row{flex-direction:column}.input-action-row .button{width:100%}.current-time-card{align-items:flex-start;flex-direction:column}.count-pill{margin-left:0}.ad-slot{align-items:flex-start;flex-direction:column;gap:2px}.support-area{flex-direction:column;gap:1px}.key-value-row,.regex-controls{grid-template-columns:1fr}.regex-controls .button{width:100%}.tool-guide-grid{grid-template-columns:1fr}}