/* 浪浪工具箱 - 公共样式 */
:root{
  --bg:#f6f7f9; --card:#fff; --text:#1a1d21; --muted:#6b7280;
  --border:#e3e6ea; --brand:#2563eb; --brand-soft:#eff4ff;
  --ok:#0f9d58; --err:#d93025; --code:#f3f4f6;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1115; --card:#171a21; --text:#e6e8eb; --muted:#9aa4b2;
    --border:#262b35; --brand:#4f8cff; --brand-soft:#1a2332;
    --ok:#34d399; --err:#f87171; --code:#1d2129;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.6; font-size:15px;
}
a{color:var(--brand); text-decoration:none}
a:hover{text-decoration:underline}
header{
  border-bottom:1px solid var(--border); background:var(--card);
  position:sticky; top:0; z-index:20;
}
.wrap{max-width:1080px; margin:0 auto; padding:0 18px}
.hdr{display:flex; align-items:center; gap:12px; height:58px}
.logo{font-weight:700; font-size:17px; letter-spacing:.2px}
.logo span{color:var(--brand)}
.logo a{color:var(--text)}
.tagline{color:var(--muted); font-size:13px; margin-left:auto; text-align:right}
@media(max-width:620px){ .tagline{display:none} }
.sitenav{display:flex; gap:14px; align-items:center}
.sitenav a{color:var(--muted); font-size:13px}
.sitenav a:hover, .sitenav a.on{color:var(--brand)}
nav.tools{display:flex; gap:6px; overflow-x:auto; padding:10px 0 12px; scrollbar-width:none}
nav.tools::-webkit-scrollbar{display:none}
nav.tools button{
  flex:0 0 auto; border:1px solid var(--border); background:var(--card);
  color:var(--muted); padding:6px 12px; border-radius:999px; cursor:pointer;
  font-size:13px; transition:.15s;
}
nav.tools button:hover{color:var(--text); border-color:var(--brand)}
nav.tools button.on{background:var(--brand-soft); border-color:var(--brand); color:var(--brand); font-weight:600}
main{padding:22px 0 60px}
.card{
  background:var(--card); border:1px solid var(--border); border-radius:14px;
  padding:20px; margin-bottom:18px;
}
.card h2{margin:0 0 4px; font-size:16px}
.card .desc{color:var(--muted); font-size:13px; margin:0 0 14px}
label{display:block; font-size:13px; color:var(--muted); margin:10px 0 5px}
input[type=text], input[type=number], textarea, select{
  width:100%; padding:9px 11px; border:1px solid var(--border); border-radius:9px;
  background:var(--bg); color:var(--text); font-size:14px; font-family:inherit;
  outline:none; transition:.15s;
}
input:focus, textarea:focus, select:focus{border-color:var(--brand); box-shadow:0 0 0 3px var(--brand-soft)}
textarea{min-height:110px; resize:vertical; font-family:ui-monospace,Consolas,monospace; font-size:13px}
.row{display:grid; grid-template-columns:1fr 1fr; gap:14px}
.row3{display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px}
@media(max-width:700px){ .row,.row3{grid-template-columns:1fr} }
.btns{display:flex; gap:8px; flex-wrap:wrap; margin-top:12px}
button.act{
  border:1px solid var(--brand); background:var(--brand); color:#fff;
  padding:8px 16px; border-radius:9px; cursor:pointer; font-size:14px; font-weight:500;
}
button.act:hover{filter:brightness(1.08)}
button.ghost{
  border:1px solid var(--border); background:transparent; color:var(--text);
  padding:8px 14px; border-radius:9px; cursor:pointer; font-size:14px;
}
button.ghost:hover{border-color:var(--brand); color:var(--brand)}
.out{
  margin-top:12px; padding:12px; border-radius:10px; background:var(--code);
  font-family:ui-monospace,Consolas,monospace; font-size:13px;
  white-space:pre-wrap; word-break:break-all; min-height:20px;
}
.out:empty{display:none}
.ok{color:var(--ok)} .err{color:var(--err)}
.kv{display:grid; grid-template-columns:110px 1fr; gap:6px 14px; font-size:13px}
.kv div:nth-child(odd){color:var(--muted)}
.kv div:nth-child(even){font-family:ui-monospace,Consolas,monospace; word-break:break-all}
.hint{font-size:12px; color:var(--muted); margin-top:8px}
.tabs{display:flex; gap:6px; margin-bottom:10px; flex-wrap:wrap}
.tabs button{border:1px solid var(--border); background:transparent; color:var(--muted);
  padding:5px 12px; border-radius:8px; cursor:pointer; font-size:13px}
.tabs button.on{background:var(--brand-soft); border-color:var(--brand); color:var(--brand)}
.ad{
  border:1px dashed var(--border); border-radius:12px; padding:16px;
  text-align:center; color:var(--muted); font-size:12px; margin:22px 0; min-height:90px;
  display:flex; align-items:center; justify-content:center;
}
footer{border-top:1px solid var(--border); padding:24px 0 40px; color:var(--muted); font-size:13px}
footer .flinks{display:flex; gap:16px; flex-wrap:wrap; margin-bottom:10px}
footer .flinks a{color:var(--muted)}
footer .flinks a:hover{color:var(--brand)}
.tools-nav{display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:10px; margin-top:6px}
.tools-nav a{
  display:block; padding:12px; border:1px solid var(--border); border-radius:10px;
  color:var(--text); font-size:13px; transition:.15s;
}
.tools-nav a:hover{border-color:var(--brand); background:var(--brand-soft); text-decoration:none}
.tools-nav a b{display:block; font-size:15px; margin-bottom:2px}
.tools-nav a small{color:var(--muted)}
.badge{display:inline-block; font-size:11px; padding:1px 7px; border-radius:999px;
  background:var(--brand-soft); color:var(--brand); margin-left:6px; vertical-align:middle}

/* ---------- 文章排版 ---------- */
.article{background:var(--card); border:1px solid var(--border); border-radius:14px; padding:28px 30px}
@media(max-width:640px){ .article{padding:20px 18px} }
.crumb{font-size:13px; color:var(--muted); margin-bottom:14px}
.crumb a{color:var(--muted)} .crumb a:hover{color:var(--brand)}
.article h1{font-size:25px; line-height:1.35; margin:0 0 10px}
.article .meta{color:var(--muted); font-size:13px; margin-bottom:22px; padding-bottom:16px; border-bottom:1px solid var(--border)}
.article h2{font-size:19px; margin:30px 0 10px}
.article h3{font-size:16px; margin:22px 0 8px}
.article p{margin:0 0 14px}
.article ul,.article ol{margin:0 0 14px; padding-left:22px}
.article li{margin-bottom:6px}
.article code{
  background:var(--code); padding:1px 6px; border-radius:5px;
  font-family:ui-monospace,Consolas,monospace; font-size:13px;
}
.article pre{
  background:var(--code); padding:14px 16px; border-radius:10px;
  overflow-x:auto; font-family:ui-monospace,Consolas,monospace;
  font-size:13px; line-height:1.55; margin:0 0 16px;
}
.article pre code{background:none; padding:0}
.article blockquote{
  margin:0 0 16px; padding:10px 16px; border-left:3px solid var(--brand);
  background:var(--brand-soft); border-radius:0 8px 8px 0; color:var(--text);
}
.article table{width:100%; border-collapse:collapse; margin:0 0 16px; font-size:14px}
.article th,.article td{border:1px solid var(--border); padding:8px 10px; text-align:left}
.article th{background:var(--code); font-weight:600}
.cta{
  margin:24px 0 0; padding:16px 18px; border-radius:12px;
  background:var(--brand-soft); border:1px solid var(--brand);
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
}
.cta b{font-size:15px}
.cta a.go{
  margin-left:auto; background:var(--brand); color:#fff; padding:8px 18px;
  border-radius:9px; font-size:14px; font-weight:500;
}
.cta a.go:hover{text-decoration:none; filter:brightness(1.08)}

/* ---------- 文章列表 ---------- */
.post-list{display:grid; gap:12px}
.post-list a.post{
  display:block; background:var(--card); border:1px solid var(--border);
  border-radius:12px; padding:16px 18px; color:var(--text); transition:.15s;
}
.post-list a.post:hover{border-color:var(--brand); background:var(--brand-soft); text-decoration:none}
.post-list .pt{font-size:16px; font-weight:600; margin-bottom:4px}
.post-list .pd{color:var(--muted); font-size:13px; margin-bottom:6px}
.post-list .pm{color:var(--muted); font-size:12px}