html,body{height:100%}body.refs-page{margin:0;background:var(--ground);color:var(--ink);font-family:"Noto Serif SC",Songti SC,serif;min-height:100vh}body.refs-page:before{opacity:.04}.refs-page .topnav{position:sticky;top:0;height:var(--nav-h);z-index:600;display:flex;align-items:center;gap:20px;padding:0 var(--page-pad);background:color-mix(in srgb,var(--ground) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid color-mix(in srgb,var(--ink) 12%,transparent);font-family:"Noto Serif SC",Songti SC,serif;line-height:1}.refs-page .topnav .page-title{font-size:14px;font-weight:600;letter-spacing:.18em;color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s var(--ease-ink);line-height:1}.refs-page .topnav .page-title:hover{border-color:var(--ink)}.refs-page .topnav .project-credit{margin-left:auto;font-size:11px;letter-spacing:.22em;color:color-mix(in srgb,var(--ink) 45%,var(--ground));font-weight:400;line-height:1}.refs-page .topnav .back-link{font-size:12px;letter-spacing:.18em;color:color-mix(in srgb,var(--ink) 75%,var(--ground));text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s var(--ease-ink);line-height:1}.refs-page .topnav .back-link:hover{border-color:var(--ink)}.refs{max-width:880px;margin:0 auto;padding:56px var(--page-pad) 80px}.refs-intro h1{font-size:clamp(28px,4vw,40px);font-weight:600;letter-spacing:.08em;margin:0 0 12px;color:var(--ink)}.refs-intro .refs-lead{font-size:15px;line-height:1.85;letter-spacing:.02em;max-width:64ch;color:color-mix(in srgb,var(--ink) 85%,var(--ground));margin:0 0 36px}.approx-mark,.approx-tag{display:inline-block;font-size:10px;letter-spacing:.18em;color:color-mix(in srgb,var(--ink) 55%,var(--ground));border:1px dashed color-mix(in srgb,var(--ink) 35%,transparent);border-radius:1px;padding:1px 6px;vertical-align:2px;white-space:nowrap}.refs-toc{display:flex;flex-wrap:wrap;gap:14px 22px;padding:12px 0;margin-bottom:32px;border-top:1px solid color-mix(in srgb,var(--ink) 14%,transparent);border-bottom:1px solid color-mix(in srgb,var(--ink) 14%,transparent);font-size:12px;letter-spacing:.16em}.refs-toc a{color:color-mix(in srgb,var(--ink) 70%,var(--ground));text-decoration:none;border-bottom:1px solid transparent;transition:color .15s,border-color .15s}.refs-toc a:hover{color:var(--ink);border-bottom-color:var(--ink)}.refs-section{margin-bottom:56px}.refs-section h2{font-size:13px;font-weight:600;letter-spacing:.32em;text-transform:uppercase;color:color-mix(in srgb,var(--ink) 60%,var(--ground));margin:0 0 20px;padding-bottom:8px;border-bottom:1px solid color-mix(in srgb,var(--ink) 14%,transparent)}.biblio-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.biblio-item{padding:12px 16px;background:color-mix(in srgb,var(--bone) 70%,transparent);border:1px solid color-mix(in srgb,var(--ink) 12%,transparent);border-radius:2px;transition:background .2s}.biblio-item:target,.biblio-item.flash{background:color-mix(in srgb,var(--bone) 100%,transparent);border-color:color-mix(in srgb,var(--ink) 35%,transparent)}.biblio-item .b-head{font-size:14px;line-height:1.6}.biblio-item .b-head a{color:inherit;text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--ink) 30%,transparent)}.biblio-item .b-head a:hover{border-bottom-color:var(--ink)}.biblio-item .b-author{color:var(--ink)}.biblio-item .b-title{font-style:normal;font-weight:600;color:var(--ink);margin:0 4px}.biblio-item .b-publisher,.biblio-item .b-year{color:color-mix(in srgb,var(--ink) 65%,var(--ground));font-size:13px}.biblio-item .b-sep{margin:0 7px;color:color-mix(in srgb,var(--ink) 25%,var(--ground))}.biblio-item .b-note{margin:6px 0 0;font-size:12px;line-height:1.65;color:color-mix(in srgb,var(--ink) 65%,var(--ground))}.claims-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:18px;counter-reset:claim}.claim-item{position:relative;padding:16px 18px;background:color-mix(in srgb,var(--bone) 70%,transparent);border:1px solid color-mix(in srgb,var(--ink) 12%,transparent);border-radius:2px;counter-increment:claim;transition:background .2s,border-color .2s}.claim-item:before{content:counter(claim,decimal-leading-zero);position:absolute;top:14px;right:18px;font-size:10px;letter-spacing:.12em;color:color-mix(in srgb,var(--ink) 30%,var(--ground));font-feature-settings:"tnum"}.claim-item:target,.claim-item.flash{background:color-mix(in srgb,var(--bone) 100%,transparent);border-color:color-mix(in srgb,#6f8aa3 70%,var(--ink) 30%);box-shadow:0 0 0 3px color-mix(in srgb,#8aa4be 25%,transparent)}.claim-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;margin-bottom:6px;padding-right:36px}.kind-tag{font-size:10px;letter-spacing:.18em;padding:2px 6px;border-radius:1px;border:1px solid color-mix(in srgb,#6f8aa3 50%,transparent);color:color-mix(in srgb,#6f8aa3 80%,var(--ink) 20%);background:color-mix(in srgb,#8aa4be 12%,transparent)}.kind-tag.kind-river{border-color:color-mix(in srgb,#8aa4be 60%,transparent)}.kind-tag.kind-canal{border-color:color-mix(in srgb,#6f8aa3 60%,transparent)}.kind-tag.kind-lake{border-color:color-mix(in srgb,#a8bccf 70%,transparent);color:color-mix(in srgb,#6f8aa3 75%,var(--ink) 25%)}.claim-title{font-size:16px;font-weight:600;letter-spacing:.06em;color:var(--ink)}.claim-era{font-size:11.5px;letter-spacing:.12em;color:color-mix(in srgb,var(--ink) 60%,var(--ground))}.claim-text{margin:8px 0 12px;font-size:13.5px;line-height:1.8;color:color-mix(in srgb,var(--ink) 88%,var(--ground))}.claim-sources{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:10px;border-top:1px dashed color-mix(in srgb,var(--ink) 18%,transparent)}.sources-label{font-size:10px;letter-spacing:.28em;color:color-mix(in srgb,var(--ink) 50%,var(--ground));text-transform:uppercase;margin-right:4px}.source-chip{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;font-size:11.5px;text-decoration:none;border:1px solid color-mix(in srgb,#6f8aa3 50%,transparent);border-radius:2px;color:color-mix(in srgb,#6f8aa3 80%,var(--ink) 20%);background:color-mix(in srgb,var(--bone) 50%,transparent);transition:all .15s;line-height:1.5}.source-chip:hover{color:var(--ink);border-color:var(--ink);background:var(--bone)}.source-chip .src-host{font-size:9.5px;letter-spacing:.06em;color:color-mix(in srgb,var(--ink) 50%,var(--ground));font-family:ui-monospace,SF Mono,Cascadia Code,Menlo,monospace;padding-left:6px;border-left:1px solid color-mix(in srgb,var(--ink) 18%,transparent)}.claim-biblio-refs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;font-size:11px}.br-label{font-size:10px;letter-spacing:.22em;color:color-mix(in srgb,var(--ink) 45%,var(--ground));margin-right:4px}.biblio-chip{font-size:10.5px;letter-spacing:.04em;color:color-mix(in srgb,var(--ink) 65%,var(--ground));text-decoration:none;border-bottom:1px dotted color-mix(in srgb,var(--ink) 30%,transparent);transition:color .15s,border-color .15s}.biblio-chip:hover{color:var(--ink);border-bottom-color:var(--ink);border-bottom-style:solid}.loading{list-style:none;padding:12px 0;font-size:11px;letter-spacing:.18em;color:color-mix(in srgb,var(--ink) 50%,var(--ground))}.refs-foot{margin-top:64px;padding-top:20px;border-top:1px solid color-mix(in srgb,var(--ink) 14%,transparent);font-size:11px;line-height:1.8;letter-spacing:.04em;color:color-mix(in srgb,var(--ink) 50%,var(--ground))}.refs-foot p{margin:0 0 6px}@media (max-width: 640px){.refs{padding:28px 20px 60px}.claim-head{padding-right:28px}.claim-item:before{right:12px;top:12px}}
