.latency-tool .measurement-path{margin:0 0 2rem;padding:clamp(1rem,3vw,2rem);border:1px solid #dce2ea;border-radius:18px;background:#f4f7fb}
.measurement-path figcaption{font-weight:700;color:#111c35;margin-bottom:1rem}
.measurement-path ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;padding:0;list-style:none;counter-reset:path}
.measurement-path li{counter-increment:path;padding:1rem;border-radius:12px;background:#fff;color:#111c35;border:1px solid #c4d0e0;overflow-wrap:anywhere}
.measurement-path li:before{content:counter(path,decimal-leading-zero);display:block;font-weight:700;color:#3758a4;margin-bottom:.5rem}
.measurement-path p{margin-bottom:0;max-width:80ch}
.latency-form{padding:clamp(1rem,3vw,2rem);border:1px solid #c4d0e0;border-radius:18px;background:#fff;color:#111c35}
.latency-form label{display:block;font-weight:600;min-width:0}
.latency-form label span{display:block;margin-bottom:.6rem}
.latency-form textarea{box-sizing:border-box;display:block;width:100%;padding:1rem;border:1px solid #66738a;border-radius:8px;background:#fff;color:#111c35;font:inherit;resize:vertical}
.latency-form .content-grid{gap:1.5rem;margin:1.5rem 0}
.latency-actions{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;align-items:center}
.measurement-scenario .guide-table,.latency-tool .guide-table{overflow-x:auto;margin-block:1.25rem}
.measurement-scenario table,.latency-tool table{width:100%;border-collapse:collapse;text-align:start;background:#fff;color:#111c35}
.measurement-scenario th,.measurement-scenario td,.latency-tool th,.latency-tool td{padding:1rem;vertical-align:top;border-bottom:1px solid #dce2ea;line-height:1.65}
.measurement-scenario thead,.latency-tool thead{background:#eaf0f8;color:#111c35}
.measurement-scenario caption,.latency-tool caption{font-weight:600;text-align:start;padding:.75rem 0}
.measurement-scenario table{min-width:35rem;table-layout:fixed}
.latency-tool .guide-table table{min-width:0;table-layout:fixed;overflow-wrap:anywhere}
.latency-tool td{font-variant-numeric:tabular-nums}
.latency-tool details{margin-top:1.5rem;padding:1.25rem;border:1px solid #c4d0e0;border-radius:12px;background:#f4f7fb;color:#111c35}
.latency-tool summary{cursor:pointer;font-weight:700;min-height:24px}
.latency-tool details p{margin-top:1rem}
.measurement-photo{max-width:760px;margin:1.5rem auto}
.measurement-photo img{display:block;width:100%;height:auto;border-radius:14px}
.measurement-photo figcaption{font-size:.875rem;line-height:1.6;margin-top:.75rem}
.content-grid>article>.measurement-photo img{aspect-ratio:4/3;object-fit:contain;background:#f4f7fb}
.measurement-career{background:#f4f7fb;color:#111c35}
.guide-diagram figure{margin:0}
.guide-diagram img{display:block;width:100%;height:auto;border-radius:16px}
.guide-diagram figcaption{margin-top:1rem;line-height:1.7;font-size:.95rem}
.packet-diagram{margin:1.5rem 0 2rem}
.packet-diagram img{display:block;width:100%;height:auto;border-radius:var(--radius)}
.packet-diagram figcaption{margin-top:.8rem;font-size:.9rem;line-height:1.65}
.packet-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
.packet-fields input,.packet-fields select{display:block;width:100%;max-width:none;margin-top:.5rem;padding:.75rem;border:1px solid #7c899e;border-radius:.4rem;background:#fff;color:#162b40;font:inherit}
.packet-method{padding:1.25rem;border:1px solid var(--line);border-radius:12px;background:#fff}
.packet-method summary{cursor:pointer;list-style:none;font-weight:700;display:flex;justify-content:space-between;gap:1rem}
.packet-method summary::after{content:'+';color:#a90054}
.packet-method[open] summary::after{content:'−'}
.packet-method summary::-webkit-details-marker{display:none}
.tool-index{display:flex;gap:1rem;flex-wrap:wrap;padding-block:1.5rem}
.tool-index a{padding:.7rem 1rem;border:1px solid var(--line);border-radius:12px;font-weight:600;background:#fff}
#cout-total>details{margin-top:1.5rem;padding:1.25rem;border:1px solid var(--line);border-radius:12px;background:#fff}
#cout-total>details>summary{list-style:none;cursor:pointer;font-weight:700;display:flex;justify-content:space-between;gap:1rem}
#cout-total>details>summary::after{content:'+';color:#a90054}
#cout-total>details[open]>summary::after{content:'−'}
#cout-total>details>summary::-webkit-details-marker{display:none}
@media(max-width:700px){.packet-fields{grid-template-columns:minmax(0,1fr)}.tool-index{gap:.5rem}.tool-index a{flex:1 1 10rem}}
@media(max-width:600px){.measurement-path ol{grid-template-columns:repeat(2,minmax(0,1fr))}.latency-form .content-grid{grid-template-columns:minmax(0,1fr)}.latency-tool th,.latency-tool td{padding:.65rem;font-size:.9rem}.latency-actions{align-items:flex-start;flex-direction:column}}