:root{color-scheme:light;--bg:#fff;--fg:#171717;--muted:#737373;--soft:#f5f5f5;--border:#e5e5e5;--card:rgba(255,255,255,.9);--stripe:#f8f9fa;--accent:#3d948b;--shadow:1px 4px 10px -3px #0000001a;--info-bg:#d6d8fb;--info-fg:#373f84;--success-bg:#d6eae6;--success-fg:#345b55}
:root[data-theme=dark]{color-scheme:dark;--bg:#111827;--fg:#f5f5f5;--muted:#a3a3a3;--soft:#253044;--border:#374151;--card:rgba(17,24,39,.92);--stripe:#192334;--info-bg:#303661;--info-fg:#c1c7ff;--success-bg:#203e3a;--success-fg:#b0d9cf;--shadow:1px 4px 10px -3px #0005}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Fira Sans","Droid Sans","Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px}button,input,select{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}a{color:inherit;text-underline-offset:3px}button:disabled{cursor:wait;opacity:.65}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}svg{width:16px;height:16px;vertical-align:middle}svg:not([fill]){fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}p{margin:0}h1{font-size:20px;line-height:30px;font-weight:600;margin:0 0 8px}h2{font-size:18px;font-weight:600;margin:0 0 12px}h3{font-size:14px;margin:0;font-weight:600}.muted{color:var(--muted)}.small{font-size:12px}.error{color:#dc4747}.success{color:var(--accent)}[hidden]{display:none!important}
nav{position:fixed;inset:0 0 auto;z-index:50}.nav-wrap{max-width:1280px;margin:auto;padding:16px}.nav-pill{display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid var(--border);border-radius:9999px;background:var(--card);padding:8px;box-shadow:var(--shadow);backdrop-filter:blur(16px)}.nav-links{display:none;gap:4px;flex:1}.nav-links a{padding:10px 16px;text-decoration:none;color:var(--muted);border-radius:9999px;white-space:nowrap}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--fg);background:var(--soft)}.nav-links a[aria-current=page]{font-weight:600}.nav-mobile{position:relative;flex:1}.nav-mobile>button{border:0;background:var(--soft);border-radius:9999px;display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:10px 16px;font-weight:600}.theme-wrap{position:relative}.theme-toggle{border:0;display:grid;place-items:center;width:40px;height:40px;background:var(--soft);border-radius:50%}.menu{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--bg);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:4px;z-index:60}.menu a,.menu button{display:block;width:100%;background:none;border:0;text-align:left;padding:9px 12px;border-radius:4px;text-decoration:none}.menu a:hover,.menu button:hover{background:var(--soft)}.theme-menu{left:auto;min-width:144px}.menu a[aria-current=page]{background:var(--soft);font-weight:600}
main{max-width:1280px;min-height:calc(100dvh - 74px);padding:96px 16px 24px;margin:auto;width:100%;outline:none}header{margin:0 0 16px}header p{color:var(--muted);line-height:1.5}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);padding:16px 20px}.top-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:16px}.ip-block{position:relative;padding-bottom:16px;border-bottom:1px solid var(--border)}.ip-block+.ip-block{padding:16px 0 0;border:0}.ip-field+.ip-field{margin-top:8px}.ip-label{font-size:12px;color:var(--muted);margin-bottom:4px}.ip-value{min-height:19px;line-height:20px;overflow-wrap:anywhere}.ip-line{display:flex;align-items:center;gap:4px;min-height:22px}.ip-line .icon-btn{color:var(--muted)}.icon-btn{display:inline-grid;place-items:center;background:none;border:0;padding:4px;border-radius:4px;text-decoration:none}.icon-btn:hover{background:var(--soft)}.country{position:absolute;right:0;top:0;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:var(--soft);font-size:19px}.loading-line{display:inline-block;height:14px;min-width:110px;border-radius:8px;background:var(--soft);animation:pulse 1.5s ease-in-out infinite}.loading-line.short{min-width:80px}.ip-unavailable{position:relative;min-height:190px}.ip-unavailable .ip-fields{filter:blur(5px);opacity:.22;user-select:none;pointer-events:none}.unavailable-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--border);border-radius:6px;background:var(--bg);padding:6px 12px;box-shadow:0 1px 2px #00000008;color:var(--fg)}.btn:hover{background:var(--soft)}.btn.primary{background:var(--soft);border-color:var(--soft);font-weight:600;padding:10px 16px}.source-row{padding:0 0 12px;border-bottom:1px solid var(--border)}.source-row+.source-row{padding:12px 0}.source-row:last-child{padding-bottom:0;border:0}.source-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.source-value{line-height:21px}.badge{display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;font-size:12px;padding:2px 8px;border:1px solid var(--info-fg);border-radius:999px;color:var(--info-fg);background:var(--info-bg);line-height:16px}.badge.international{background:var(--success-bg);color:var(--success-fg);border-color:var(--success-fg)}.badge.extra{background:#e9d9ff;border-color:#7308f7;color:#7308f7}.routing-note{margin:0 0 16px;line-height:1.6}.privacy-card{padding:8px 16px 8px 12px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:16px;min-height:44px}.privacy-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:13px}.privacy-label:first-of-type{margin-left:auto}.switch{appearance:none;margin:0;width:32px;height:18px;background:#d4d4d4;border-radius:999px;position:relative;cursor:pointer;transition:background .2s}.switch:before{content:"";position:absolute;width:14px;height:14px;top:2px;left:2px;background:white;border-radius:50%;box-shadow:0 1px 3px #0002;transition:transform .2s}.switch:checked{background:var(--fg)}.switch:checked:before{transform:translateX(14px);background:var(--bg)}.private-ip [data-ip],.private-cn [data-region=cn] .sensitive,.private-intl [data-region=intl] .sensitive{filter:blur(5px);user-select:none;pointer-events:none}.private-ip [data-copy],.private-ip .lookup-ip{visibility:hidden}.connectivity{display:grid;grid-template-columns:1fr;gap:24px}.connectivity-item{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0}.service{display:flex;align-items:center;gap:10px;min-width:0}.service-icon{width:24px;height:24px;object-fit:contain;flex-shrink:0}.service-icon.fallback{border-radius:5px;display:grid;place-items:center;background:var(--soft);font-weight:600;font-size:12px}.service-detail{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.latency{font-variant-numeric:tabular-nums;white-space:nowrap;font-size:13px}.latency small{color:var(--muted);font-size:11px}.latency button{margin-left:4px}
.table-wrap{border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);overflow:auto;background:var(--card)}table{border-collapse:collapse;width:100%;font-size:14px;white-space:nowrap}th{text-align:left;background:var(--soft);font-weight:600}td,th{padding:13px 20px;border-bottom:1px solid var(--border);height:44px}tbody tr:nth-child(even){background:var(--stripe)}tbody tr:last-child td{border-bottom:0}.table-service{display:flex;align-items:center;gap:8px;font-weight:600}.table-service .service-icon{width:20px;height:20px}.result-cell{min-width:160px}td.geo-cell{white-space:normal;min-width:210px}.query-form{display:flex;gap:16px;margin:0 0 24px}.query-form input{flex:1;min-width:0;border:1px solid var(--border);border-radius:8px;padding:10px 16px;background:var(--bg);color:var(--fg);box-shadow:0 1px 2px #00000008}.query-error{margin:-12px 0 16px}.query-table th:first-child,.query-table td:first-child{min-width:180px}.query-table td{min-width:110px}.query-table td.status-cell{color:var(--muted)}.cdn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.cdn-card{text-align:center;padding:12px 16px 10px;min-width:0}.cdn-brand{height:24px;display:flex;justify-content:center;align-items:center;margin-bottom:4px}.cdn-brand img{max-width:90px;max-height:22px}.cdn-name{font-size:12px;color:var(--muted);min-height:18px;margin-bottom:8px}.cdn-result{border-top:1px solid var(--border);padding-top:8px;min-height:25px;overflow-wrap:anywhere}.progress-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.progress-head h2{margin:0}.progress{height:4px;background:var(--soft);border-radius:9px;overflow:hidden;margin-bottom:12px}.progress span{display:block;height:100%;background:var(--accent);transition:width .25s}.progress-card{margin-bottom:26px}.discovered-grid{display:grid;gap:12px;grid-template-columns:1fr}.discovered-card .ip-line{font-weight:600;margin-bottom:10px}.discovered-card .source-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.status-note{color:var(--muted);font-size:12px;line-height:1.6}.actions{display:flex;justify-content:flex-end;margin:14px 0}.empty{text-align:center;color:var(--muted);padding:36px 16px;white-space:normal}.about{max-width:800px;line-height:1.8}.about p{margin-bottom:14px}.about ul{padding-left:22px}.about h2{margin-top:24px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:10px 18px;border-radius:8px;border:1px solid var(--border);background:var(--fg);color:var(--bg);box-shadow:var(--shadow);z-index:100;white-space:nowrap}footer{border-top:1px solid var(--border);padding:16px;text-align:center;line-height:21px;font-size:14px}footer a{text-decoration:none}footer a:hover{text-decoration:underline}@keyframes pulse{50%{opacity:.45}}@media(prefers-reduced-motion:reduce){*,*:before{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(min-width:640px){.connectivity{grid-template-columns:repeat(2,minmax(0,1fr))}.cdn-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.discovered-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:800px){.top-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cdn-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(min-width:926px){.nav-links{display:flex}.nav-mobile{display:none}}@media(min-width:960px){.cdn-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}@media(min-width:1280px){.connectivity{grid-template-columns:repeat(4,minmax(0,1fr))}.cdn-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}@media(max-width:479px){.privacy-card{gap:12px}.privacy-label{font-size:12px;gap:6px}.privacy-label:first-of-type{margin-left:0}.switch{width:28px}.switch:checked:before{transform:translateX(10px)}.nav-wrap{padding:16px}.nav-pill{padding:8px}td,th{padding:13px 20px}}
.flag{border-radius:50%;display:inline-block;object-fit:cover;vertical-align:middle}.routing-note{font-size:12px;color:var(--muted);line-height:1.6;margin:12px 0 0;padding-top:12px;border-top:1px solid var(--border)}.connectivity-item{flex-wrap:wrap;gap:12px;min-height:58px}.connectivity-item>.service{width:100%;font-weight:600}.latency{display:flex;align-items:center;gap:12px;width:100%;font-weight:700}.latency-value{min-width:48px;font-size:14px}.latency-value small{font-size:14px;font-weight:400;margin-left:0}.status-history{display:flex;gap:6px;flex:1;min-width:0;align-items:center;justify-content:space-between}.history-bar{flex:1;max-width:8px;height:8px;border-radius:9px;background:var(--soft)}.history-bar.up{background:#3d948b}.history-bar.down{background:#e25e5e}.connectivity{row-gap:32px;column-gap:64px}
@media(min-width:800px){main{padding-right:24px;padding-left:24px}.nav-wrap{padding-right:24px;padding-left:24px}h1{font-size:30px;line-height:36px}header{margin-bottom:24px}header p{font-size:16px;line-height:22.5px}.card{padding:20px 24px}.privacy-card{padding:8px 16px 8px 12px;min-height:49px}.cdn-card{padding:12px 16px 10px}.nav-links a{padding:10px 16px}.ip-label{margin-bottom:4px}.ip-field+.ip-field{margin-top:10px}.ip-unavailable{min-height:200px}}
@media(min-width:392px) and (max-width:639px){.connectivity-item{flex-wrap:nowrap;min-height:24px;gap:16px}.connectivity-item>.service{width:auto;flex-shrink:0}.latency{width:auto;flex:1}.status-history{gap:4px}}
#sources .source-row:nth-child(4){border-bottom:1px solid var(--border);padding-bottom:12px}.routing-note{border:0;padding-top:0}
.brand-byte{color:#52afc1}.brand-wechat{color:#28b56a}