:root{
  --bg:#f7f5f4; --surface:#fff; --text:#1f1e1d; --muted:#6a6561; --line:#e7e3e0; --hover:#faf9f8;
  --accent:#3f5fd4; --pill:#eeebe8; --pill-text:#44403c;
  --ok:#1c7c4d; --warn:#9a5b00; --warn-soft:#fff3d6;
  --btn:#1f1e1d; --btn-text:#fff; --code-bg:#f1eeec;
  --radius:14px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#1f1e1d; --surface:#292826; --text:#f7f5f4; --muted:#a8a29e; --line:#3a3836; --hover:#2f2d2b;
    --accent:#93a7f7; --pill:#383533; --pill-text:#d6d1cd;
    --ok:#4cc38a; --warn:#f2b45a; --warn-soft:#3b2f14;
    --btn:#f7f5f4; --btn-text:#1f1e1d; --code-bg:#242321;
  }
}
:root[data-theme="dark"]{
  --bg:#1f1e1d; --surface:#292826; --text:#f7f5f4; --muted:#a8a29e; --line:#3a3836; --hover:#2f2d2b;
  --accent:#93a7f7; --pill:#383533; --pill-text:#d6d1cd;
  --ok:#4cc38a; --warn:#f2b45a; --warn-soft:#3b2f14;
  --btn:#f7f5f4; --btn-text:#1f1e1d; --code-bg:#242321;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.nav{max-width:960px;margin:0 auto;padding:20px 16px 0;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;color:var(--text)}
.brand:hover{text-decoration:none}
.logo{width:26px;height:26px;color:var(--text)}
.nav-r{display:flex;align-items:center;gap:6px}
.icon-btn{border:0;background:transparent;color:var(--muted);border-radius:999px;width:36px;height:36px;cursor:pointer;font-size:16px;line-height:1}
.icon-btn:hover{background:var(--pill);color:var(--text)}

.wrap{max-width:960px;margin:0 auto;padding:36px 16px 72px}
.hero{margin-bottom:28px}
h1{font-size:34px;line-height:1.15;margin:0 0 10px;letter-spacing:-.025em;font-weight:700}
.sub{color:var(--muted);margin:0;font-size:16px;max-width:560px}
.status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:5px 12px 5px 10px;border:1px solid var(--line);background:var(--surface);border-radius:999px;font-size:13px;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted);flex:none}
.dot.ok{background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 20%,transparent)}
.dot.warn{background:var(--warn)}

.notice{background:var(--warn-soft);color:var(--warn);border-radius:12px;padding:10px 14px;margin-bottom:16px;font-size:14px}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:28px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat .k{font-size:12px;color:var(--muted)}
.stat .v{font-size:19px;font-weight:600;margin-top:2px;letter-spacing:-.01em;word-break:break-all}

.bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.bar h2{font-size:18px;margin:0 auto 0 0;letter-spacing:-.01em}
.btn{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:7px 16px;font:inherit;font-size:14px;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:6px;min-height:36px}
.btn:hover{background:var(--hover);text-decoration:none}
.btn.primary{background:var(--btn);border-color:var(--btn);color:var(--btn-text)}
.btn.primary:hover{opacity:.88;background:var(--btn)}
.btn.sm{padding:3px 12px;min-height:30px;font-size:13px}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table{width:100%;border-collapse:collapse}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.02em;background:var(--surface)}
tbody tr:hover{background:var(--hover)}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
td.act{text-align:right;width:1%}
.ipcell{display:flex;align-items:center;gap:10px}
.ipcell code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;font-weight:500}
.copyip{border:0;background:transparent;padding:0;color:inherit;cursor:pointer;font:inherit;text-align:left}
.copyip:hover code{color:var(--accent)}
.pill{display:inline-block;background:var(--pill);color:var(--pill-text);border-radius:999px;padding:1px 10px;font-size:12px;font-weight:600}
.pill.best{background:color-mix(in srgb,var(--ok) 16%,transparent);color:var(--ok)}
.pill.bad{background:var(--warn-soft);color:var(--warn)}
.state{padding:36px 16px;text-align:center;color:var(--muted)}
.state.err{color:var(--warn)}
.fine{color:var(--muted);font-size:13px;margin:10px 2px 0}

section{margin-top:40px}
section h2{font-size:18px;margin:0 0 12px;letter-spacing:-.01em}
.eps{padding:6px 0}
.ep{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap;padding:11px 16px;border-bottom:1px solid var(--line)}
.ep:last-child{border-bottom:0}
.ep .m{font-size:11px;font-weight:700;color:var(--ok);letter-spacing:.04em}
.ep a{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;color:var(--text)}
.ep a:hover{color:var(--accent)}
.ep span.d{color:var(--muted);font-size:14px}
pre{background:var(--code-bg);border:1px solid var(--line);border-radius:12px;padding:14px 16px;overflow:auto;margin:12px 0 0;font-size:13px;line-height:1.6;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
footer{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
footer a{color:inherit;text-decoration:underline}

#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(16px);background:var(--btn);color:var(--btn-text);padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;opacity:0;pointer-events:none;transition:.18s}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media (max-width:640px){
  h1{font-size:27px}
  .wrap{padding-top:24px}
  .stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat{padding:12px 14px}
  .stat .v{font-size:17px}
  thead{display:none}
  table,tbody,tr,td{display:block;width:100%}
  tr{padding:14px 16px;border-bottom:1px solid var(--line)}
  tr:last-child{border-bottom:0}
  td{border:0;padding:2px 0;white-space:normal;text-align:left!important}
  td[data-l]:not(.ipc)::before{content:attr(data-l) "  ";color:var(--muted);font-size:12px}
  td.act{margin-top:8px;width:100%}
}
@media (prefers-reduced-motion:reduce){#toast{transition:none}}

/* Help page prose */
.prose{max-width:760px}
.prose h2{font-size:21px;margin:44px 0 12px;letter-spacing:-.015em}
.prose h3{font-size:16px;margin:24px 0 8px}
.prose p{margin:0 0 12px}
.prose ul,.prose ol.plain{margin:0 0 14px;padding-left:22px}
.prose li{margin:4px 0}
.prose code.i{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;background:var(--code-bg);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.callout{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:14px 16px;margin:0 0 16px}
.callout.warn{background:var(--warn-soft);border-color:transparent;color:var(--warn)}
.callout strong{font-weight:600}
.callout p:last-child{margin-bottom:0}
ol.steps{list-style:none;margin:0 0 8px;padding:0;counter-reset:step}
ol.steps>li{counter-increment:step;position:relative;padding:0 0 22px 44px;margin:0}
ol.steps>li::before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:var(--btn);color:var(--btn-text);font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center}
ol.steps>li::after{content:"";position:absolute;left:13.5px;top:34px;bottom:6px;width:1px;background:var(--line)}
ol.steps>li:last-child::after{display:none}
ol.steps h3{margin:2px 0 6px}
.prose pre{margin:10px 0 0}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
details{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:0 16px;margin:0 0 10px}
details summary{cursor:pointer;padding:13px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--muted);font-weight:400}
details[open] summary::after{content:"−"}
details[open] summary{border-bottom:1px solid var(--line);margin-bottom:12px}
details>div{padding-bottom:6px}

/* CNAME entry card */
.entry{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px}
.entry .k{font-size:12px;color:var(--muted)}
.entry-name{margin:4px 0 6px}
.entry-name code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:21px;font-weight:600;letter-spacing:-.01em;word-break:break-all}
.entry p{margin:0;color:var(--muted);font-size:13px}

/* list tabs + filter */
.bar .grow{flex:1}
.seg{display:inline-flex;background:var(--pill);border-radius:999px;padding:3px}
.seg-b{border:0;background:transparent;color:var(--muted);font:inherit;font-size:14px;font-weight:500;padding:5px 16px;border-radius:999px;cursor:pointer;min-height:32px}
.seg-b.on{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.seg-b .n{color:var(--muted);font-weight:400;margin-left:4px}
.filter{display:flex;align-items:center;gap:12px;margin:0 0 10px}
.filter input{flex:1;min-width:0;font:inherit;font-size:14px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 16px;min-height:38px}
.filter input::placeholder{color:var(--muted)}
.filter .cnt{color:var(--muted);font-size:13px;white-space:nowrap}
.sub-h{font-size:16px;margin:28px 0 10px;letter-spacing:-.01em}
@media (max-width:640px){
  .entry{flex-direction:column;align-items:stretch}
  .entry-name code{font-size:18px}
  .bar .grow{display:none}
  .seg{order:-1}
}

/* v5: language select, region bar with test entry, pager, test page */
.lang{font:inherit;font-size:13px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 10px;min-height:32px;max-width:130px}
a.seg-b{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none}
a.seg-b:hover{color:var(--text);text-decoration:none}
a.seg-b.on{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.12)}
.seg{flex-wrap:wrap}
.seg-test .ico{flex:none}
.regions{margin-bottom:14px}
.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 4px 0}
.pg-info{color:var(--muted);font-size:13px}
.pg-btns{display:inline-flex;align-items:center;gap:4px}
.pg{border:1px solid var(--line);background:var(--surface);color:var(--text);font:inherit;font-size:13px;min-width:32px;height:32px;border-radius:999px;cursor:pointer;padding:0 8px}
.pg:hover:not(:disabled){background:var(--hover)}
.pg.on{background:var(--btn);border-color:var(--btn);color:var(--btn-text)}
.pg:disabled{opacity:.4;cursor:default}
.pg-gap{color:var(--muted);padding:0 2px}
.me{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:22px}
.bar-prog{height:6px;border-radius:999px;background:var(--pill);overflow:hidden;margin:0 0 14px}
.bar-prog>i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.sel{font:inherit;font-size:14px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 14px;min-height:36px}
.loss-bad{color:var(--warn)}
@media (max-width:640px){.pager{justify-content:center}.lang{max-width:104px}}

/* v6: selects get their own chevron so it keeps a comfortable distance from the pill edge */
.lang,.sel{-webkit-appearance:none;appearance:none;cursor:pointer;padding-right:36px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1.5 1.5 6 6l4.5-4.5' fill='none' stroke='%238a8480' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:11px 7px}
.lang{padding-left:14px;max-width:150px}
.sel{padding-left:16px}