*{box-sizing:border-box}body{margin:0;font:15px/1.6 system-ui,sans-serif;color:#192c28;background:#f5f7f7}header{border-bottom:1px solid #d9e3e0;background:white}header>div,main,footer{max-width:1150px;margin:auto;padding:22px}header>div{display:flex;justify-content:space-between}a{color:#126653;text-decoration:none}h1{font-size:36px;line-height:1.2;margin:12px 0}h2{font-size:20px}p{color:#5a6d67}.layout{display:grid;grid-template-columns:210px 1fr;gap:32px;margin-top:24px}nav a{display:block;padding:10px;border-radius:5px}nav a.active{background:#dcefe7;font-weight:bold}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tile{border:1px solid #d8e3df;border-radius:7px;padding:22px;background:white}.tile h2{margin:0 0 8px}.tool{background:white;border:1px solid #d8e3df;padding:26px;border-radius:7px}label{display:block;font-weight:600;margin:14px 0 5px}input,textarea,select{width:100%;font:inherit;padding:10px;border:1px solid #b9ccc5;border-radius:4px}textarea{min-height:140px}button,.btn{font:inherit;background:#176b53;color:white;border:0;border-radius:4px;padding:10px 17px;margin:15px 8px 8px 0;cursor:pointer}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#eff5f2;padding:18px}output{display:block}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:10px;border-bottom:1px solid #ddd}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.error{color:#b22424}.preview img{max-width:100%}footer{font-size:13px;color:#60756d}@media(max-width:750px){.layout{grid-template-columns:1fr}nav{display:flex;overflow:auto}nav a{white-space:nowrap}.grid{grid-template-columns:1fr}.row{grid-template-columns:1fr}h1{font-size:30px}}@media print{header,nav,footer,.controls,.tool>label,.tool>input,.tool>textarea,.tool>select,button,h1,.intro{display:none!important}.layout{display:block}.tool{border:0;padding:0}main{padding:0}.document{display:block!important}}
/* Unified workspace theme; shared by all localized tool pages. */
.md-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:20px}.md-layout>div,.md-layout>section{min-width:0}.md-layout h2{font-size:13px;margin:20px 0 7px;line-height:1.7}.md-source{height:460px;font:13px/1.7 ui-monospace,Consolas,monospace;tab-size:2}.md-preview{height:460px;overflow:auto;padding:22px;border:1px solid #dfe5ec;border-radius:5px;background:#fafcfd;overflow-wrap:anywhere}.md-preview h1{font-size:26px}.md-preview h2{font-size:21px}.md-preview h3{font-size:18px}.md-preview pre{font-size:12px;overflow:auto;white-space:pre}.md-preview img{max-width:100%;height:auto}.md-preview blockquote{margin:16px 0;padding-left:15px;border-left:3px solid #8ea99b}.md-preview table{font-size:12px}.md-preview ul,.md-preview ol{padding-left:22px}#md-output{min-height:140px;font:13px/1.7 ui-monospace,Consolas,monospace}#md-error:empty{display:none}#md-status{font-size:13px;color:#116449}@media(max-width:900px){.md-layout{grid-template-columns:minmax(0,1fr)}.md-source,.md-preview{height:340px}}
.codec-preview{margin-top:20px;max-height:500px;overflow:auto;background:#edf0f4}.codec-preview img{display:block;max-width:100%;height:auto;margin:auto}.codec-preview img[hidden]{display:none}#codec-text{font-family:ui-monospace,Consolas,monospace;font-size:13px}#codec-error:empty{display:none}#codec-status{font-size:13px;color:#116449}
.code-toolbar{display:flex;align-items:end;gap:16px;flex-wrap:wrap}.code-toolbar>div{min-width:130px}.code-toolbar label{margin-top:0}.code-toolbar button{margin-bottom:0}.code-input{min-height:230px;font:13px/1.7 ui-monospace,Consolas,monospace;tab-size:2}.code-output{overflow:auto;max-height:650px;background:#fff;border:1px solid #dfe5ec;border-radius:5px;min-height:140px;font:13px/1.75 ui-monospace,Consolas,monospace;tab-size:2}.code-line{display:flex;min-width:max-content}.code-line:nth-child(odd){background:#f4f7fa}.code-line-number{width:52px;flex:0 0 52px;text-align:right;padding:0 12px;color:#8592a2;border-right:1px solid #dfe5ec;user-select:none}.code-line code{white-space:pre;padding:0 14px;color:#245c78}#code-error:empty{display:none}#code-status{font-size:13px;color:#116449}
.mailto-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}.mailto-layout h2{margin:0 0 18px;font-size:18px}.mailto-editor{min-width:0}.mailto-preview{background:#eef4f0;border-left:3px solid #75a58c;padding:24px;min-width:0;align-self:stretch}.mailto-preview h3{font-size:18px;font-weight:550;margin:16px 0 22px}.mailto-preview dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 12px;font-size:13px}.mailto-preview dt{color:#687180}.mailto-preview dd{margin:0;overflow-wrap:anywhere;white-space:pre-wrap}.mailto-body{white-space:pre-wrap;overflow-wrap:anywhere;margin-top:28px;font-size:14px}.mailto-results{border-top:1px solid #dfe5ec;margin-top:28px;padding-top:8px}.mailto-results textarea{min-height:82px;font:13px/1.6 ui-monospace,Consolas,monospace;background:#f8fafc}#mailto-error:empty{display:none}#mailto-status{font-size:13px;color:#116449}@media(max-width:850px){.mailto-layout{grid-template-columns:minmax(0,1fr)}.mailto-preview{min-height:260px}}
.email-output{min-height:340px;font-family:ui-monospace,Consolas,monospace;line-height:1.55}.email-notice{font-size:13px;border-left:3px solid #4870c9;padding:10px 14px;background:#f1f5fc;margin-top:0}.email-hint{font-size:12px}.email-actions{display:flex;flex-wrap:wrap;gap:8px}.email-actions button{margin-right:0}#email-status{font-size:13px;color:#116449}#email-error:empty{display:none}
:root{color-scheme:light;--ink:#252c38;--muted:#6b7483;--line:#dfe5ec;--green:#13785c}
body{font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#f4f6f9;letter-spacing:0}header{border-color:var(--line)}header>div,main,footer{max-width:1320px;padding:24px 40px}header>div{height:88px;align-items:center;gap:16px}header a{font-size:23px;color:var(--ink)}header a:before{content:"b.";display:inline-grid;place-items:center;width:38px;height:38px;margin-right:12px;background:var(--green);color:white;border-radius:8px;font-size:25px;font-weight:750;vertical-align:middle}header select{font-size:13px;background:white;padding:8px 12px}main{min-height:calc(100vh - 180px);padding-top:40px;padding-bottom:56px}.layout{grid-template-columns:208px minmax(0,1fr);gap:40px;margin-top:0}nav{align-self:start;position:sticky;top:24px;padding:4px 20px 16px 0;border-right:1px solid var(--line)}nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;margin-bottom:5px;border-radius:6px;color:#616a79;font-size:14px;font-weight:550;transition:background .15s}nav a:before{content:"";width:7px;height:7px;flex:0 0 7px;border:1.5px solid #9ba5b4;border-radius:2px}nav a:hover{background:#e9edf3;color:var(--ink)}nav a.active{background:#dfede7;color:#116449;font-weight:700}nav a.active:before{background:var(--green);border-color:var(--green)}#content{min-width:0}h1{font-size:34px;line-height:1.25;margin:4px 0 12px;font-weight:750;overflow-wrap:anywhere}#content>p{max-width:760px;margin:0 0 30px;line-height:1.8;color:var(--muted)}#content>a:not(.tile){display:inline-block;margin:0 0 15px;font-size:13px;font-weight:600}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tile{display:flex;flex-direction:column;align-items:flex-start;position:relative;min-height:226px;padding:24px;border-color:var(--line);border-radius:8px;box-shadow:0 2px 3px #20263303;transition:transform .18s,border-color .18s,box-shadow .18s;color:var(--ink)}.tile:before{content:"";display:block;width:34px;height:5px;background:var(--green);border-radius:2px;margin:0 0 24px}.tile:nth-child(3n+2):before{background:#4870c9}.tile:nth-child(3n):before{background:#b57a35}.tile:after{content:"\2197";position:absolute;right:22px;top:20px;color:#8d97a5;font-size:21px}.tile:hover{border-color:#9cb6ab;box-shadow:0 8px 24px #263d4a0c;transform:translateY(-3px)}.tile h2{font-size:17px;line-height:1.45;font-weight:700;margin:0 0 10px;overflow-wrap:anywhere}.tile p{font-size:13px;line-height:1.75;margin:0;color:var(--muted)}.tool{border-color:var(--line);border-top:3px solid var(--green);padding:30px 32px 32px;border-radius:8px;box-shadow:0 4px 18px #20263304}.tool>label:first-child{margin-top:0}label{font-size:13px;font-weight:650;margin:20px 0 7px;color:#3d4858}input,textarea,select{min-width:0;font-size:14px;padding:11px 13px;border-color:#ccd3dd;background:white;color:var(--ink);border-radius:5px}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px #13785c12}input[type=file]{padding:18px;background:#f8fafc;border:1px dashed #b5c2cf}input[type=file]::file-selector-button{border:1px solid #ccd3dd;border-radius:4px;background:white;padding:8px 12px;margin-right:15px;cursor:pointer}input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--green)}textarea{min-height:160px;resize:vertical}button,.btn{font-size:14px;font-weight:650;background:var(--green);border-radius:5px;padding:11px 20px;margin:22px 8px 8px 0}button:hover,.btn:hover{background:#0d6049}a:focus-visible,button:focus-visible{outline:3px solid #9dbce9;outline-offset:4px}pre{font:14px/1.9 ui-monospace,Consolas,monospace;background:#eef5f1;border-left:3px solid #76a58b;padding:22px 24px;border-radius:0 5px 5px 0;margin:24px 0 0}td,th{padding:14px 12px;border-color:var(--line);overflow-wrap:anywhere}th{font-size:12px;color:var(--muted);background:#f6f8fa}.row{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.preview img{height:auto;border-radius:4px}footer{border-top:1px solid var(--line);font-size:12px;color:#78828f}
@media(max-width:1100px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{gap:28px;grid-template-columns:180px minmax(0,1fr)}header>div,main,footer{padding-left:28px;padding-right:28px}}@media(max-width:750px){header>div{height:76px}header>div,main,footer{padding-left:20px;padding-right:20px}header a{font-size:19px}header a:before{width:31px;height:31px;font-size:21px;margin-right:8px}header select{max-width:125px!important}.layout{grid-template-columns:minmax(0,1fr);gap:26px}main{padding-top:20px}nav{display:flex;position:static;overflow:auto;gap:6px;border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px}nav a{flex:0 0 auto;margin:0;padding:8px 12px;font-size:13px}nav a:before{display:none}h1{font-size:28px}#content>p{font-size:14px;margin-bottom:24px}.grid{gap:12px}.tile{padding:19px;min-height:210px}.tile h2{font-size:16px}.tile:after{right:16px;top:13px}.tool{padding:22px 20px}.row{grid-template-columns:minmax(0,1fr);gap:0}pre{padding:17px;font-size:13px}}@media(max-width:440px){.grid{grid-template-columns:minmax(0,1fr)}.tile{min-height:0;padding:22px 23px 24px}.tile:before{margin-bottom:17px}.tile p{max-width:95%}header select{font-size:12px;max-width:112px!important}header>div{gap:8px}header a{font-size:17px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media print{body{background:white}.tool{border:0;box-shadow:none;padding:0}main{padding:0}.layout{display:block}}
.suite-output{min-height:280px;font-family:Consolas,monospace;white-space:pre;overflow:auto}
.suite-note{font-size:13px;color:#596575;line-height:1.6}
.suite-frame{display:block;width:100%;height:420px;border:1px solid #d5dce3;background:#fff;margin:16px auto;box-sizing:border-box}
.tool-guide{display:grid;grid-template-columns:1fr 1.6fr;gap:32px;margin-top:28px;padding:24px 0;border-top:1px solid #dce3e9;line-height:1.8;overflow-wrap:anywhere}
.tool-guide h2{font-size:18px;margin:0 0 8px}
.tool-guide p{margin:0;color:#596575}
@media(max-width:700px){.tool-guide{grid-template-columns:1fr;gap:20px}}