:root{--ink:#202a43;--muted:#788296;--blue:#4163ed;--line:#e8ecf3;--pale:#f7f9fc}*{box-sizing:border-box}body{margin:0;background:var(--pale);color:var(--ink);font:15px/1.7 Arial,'Noto Sans CJK SC','PingFang SC','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}header{height:80px;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1240px)/2));border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;gap:14px;font-size:24px;font-weight:800;color:var(--blue)}.brand span{font-size:18px;color:var(--ink)}nav{display:flex;gap:26px;font-size:13px}main{max-width:1240px;margin:auto;padding:54px 24px 24px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--blue);font-weight:700}.intro{display:flex;justify-content:space-between;align-items:center;margin:18px 0 44px}h1{font-size:clamp(32px,4vw,52px);letter-spacing:-2px;line-height:1.25;margin:0 0 20px}h1 span{color:var(--blue)}.intro p,.muted{color:var(--muted)}.mini{width:240px;text-align:center;margin-right:70px;font-size:13px}.mini div{background:#fff;border:1px solid var(--line);padding:9px}.mini i{font-style:normal;color:#a5afc4}.mini .accent{border-color:#bdcbff;background:#eaf0ff;color:var(--blue)}.workspace{display:grid;grid-template-columns:1fr 1.15fr;gap:22px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px}h2{font-size:16px;margin:0}h3{font-size:19px}.link{background:none;border:none;color:var(--blue);cursor:pointer}.tag{background:var(--pale);padding:4px 9px;font-size:10px;color:var(--muted);border-radius:4px}label{display:block;font-size:13px;font-weight:600;margin-bottom:10px}textarea{display:block;width:100%;min-height:235px;border:1px solid #dde3ee;border-radius:6px;padding:16px;font:inherit;line-height:1.8;font-size:14px;resize:vertical;color:var(--ink)}textarea:focus,input:focus{outline:2px solid #bdcbff;outline-offset:2px}.meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:7px}.divider{display:flex;align-items:center;gap:12px;font-size:11px;color:var(--muted);margin:20px 0}.divider:before,.divider:after{content:'';height:1px;background:var(--line);flex:1}.upload{background:var(--pale);border:1px dashed #cbd4e5;padding:16px;text-align:center;font-weight:400;border-radius:6px}.upload strong{display:block}.upload span{display:block;font-size:11px;color:var(--muted);margin:6px 0}.upload input{max-width:100%;font-size:12px}.notice{font-size:11px;color:var(--muted);line-height:1.8}.notice a{color:var(--blue)}button{font:inherit;cursor:pointer;border:1px solid var(--line);padding:8px 14px;border-radius:5px;background:#fff;color:var(--ink)}button:disabled{opacity:.5;cursor:wait}.primary{display:flex;justify-content:space-between;width:100%;background:var(--blue);color:#fff;border:0;padding:13px 20px;margin-top:18px}.output{min-height:604px}#empty{text-align:center;padding:108px 10px;color:var(--muted)}#empty h3{color:var(--ink)}#empty p{font-size:13px}.empty-icon{font-size:40px;color:#a6b7f8}#preview{width:100%;height:auto;border-radius:6px;background:var(--pale)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.actions a{font-size:12px;border:1px solid var(--line);padding:6px 12px;border-radius:4px}#message{font-size:13px;color:#b14527}#progress{font-size:13px;color:var(--blue)}.history{margin:42px 0}.history p{font-size:12px}.history-row{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:13px;width:100%;border-radius:0;background:transparent;text-align:left}.history-row span{color:var(--muted);font-size:11px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;padding:24px 0;font-size:11px;color:var(--muted)}[hidden]{display:none!important}.filters{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}.filters input,.filters select{padding:8px;border:1px solid var(--line);border-radius:4px;min-width:0}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:12px;background:#fff}td,th{text-align:left;padding:12px;border-bottom:1px solid var(--line);white-space:nowrap}pre{white-space:pre-wrap;word-break:break-word;font-size:12px}#detail{margin:24px 0}.danger{color:#c0392b}.doc{max-width:900px;background:#fff;padding:36px}.doc h1{font-size:30px;letter-spacing:0}.doc pre{background:var(--pale);padding:18px}.doc p{white-space:pre-wrap}@media(max-width:760px){header{padding:0 20px;height:66px}.brand span{font-size:15px}nav{gap:12px;font-size:11px}main{padding-top:32px}.mini{display:none}.workspace{grid-template-columns:1fr}.panel{padding:20px}.output{min-height:360px}#empty{padding:50px 0}.intro{margin-bottom:28px}footer{gap:20px}.panel-title{flex-wrap:wrap}}

.doc nav{flex-wrap:wrap}.doc{overflow-wrap:anywhere}.doc table{display:block;overflow:auto}

/* WeChat tools common visual tokens, revision 1. */
:root{--tool-primary:#4163ed;--tool-ink:#202a43;--tool-muted:#72809a;--tool-surface:#fff;--tool-bg:#f7f9fc;--tool-border:#e8ecf3}body{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--tool-ink);background-color:var(--tool-bg)}input,select,textarea{border-radius:8px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #4163ed66;outline-offset:3px}button.primary,.button.primary{background-color:var(--tool-primary);border-color:var(--tool-primary);color:#fff}@media(max-width:640px){table{max-width:100%}.table-wrap{overflow:auto}input,select,textarea{max-width:100%}}

/* Visitor typography: readable guidance and mobile input sizes. */
body{font-family:Arial,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
label{font-size:14px}nav{font-size:13px}footer{font-size:12px}.eyebrow,.tag,.meta,.divider,.upload span,.notice,.history-row span{font-size:12px}
@media(max-width:760px){nav{font-size:13px}textarea,input:not([type="file"]),select{font-size:16px}}