/* v0.7: immersive cover, editorial natural-history interiors. No image edits. */
.masthead nav>a .nav-icon{display:none!important}
:root{--paper:#f5f1e7;--white:#fffdf6;--ink:#233b31;--muted:#536253;--line:#cfd3c6;--green:#183d31;--soft:#e9ecdf;--gold:#80652e;--display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif}
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.masthead.sidebar{position:relative;inset:auto;width:100%;padding:18px clamp(20px,4.5vw,76px);display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:20px 30px;align-items:center;border:0;border-bottom:1px solid var(--line);background:var(--paper);z-index:5}.brand{font-size:29px;letter-spacing:.06em;gap:13px;white-space:nowrap}.brand img{width:42px;height:42px}.brand small{font:10px/1.3 Georgia,serif;letter-spacing:.18em;margin-top:5px}.masthead .nav-label,.masthead .sidebar-foot{display:none}.masthead nav{display:flex;justify-content:flex-end;align-items:center;gap:clamp(13px,1.5vw,28px);overflow-x:auto;scrollbar-width:thin;min-width:0}.masthead nav>a{font-family:var(--display);font-size:15px;white-space:nowrap;flex-shrink:0;padding:11px 0;border-radius:0;color:var(--ink);border-bottom:2px solid transparent;display:block}.masthead nav>a:hover{background:none;border-color:var(--line)}.masthead nav>a.active{color:var(--ink);background:none;border-color:var(--green)}.masthead .nav-icon{display:none}.masthead .local-work-link{margin:0;padding:8px 12px;border-radius:3px;font-size:13px;white-space:nowrap;align-self:center}.shell{margin-left:0}.topbar{height:auto;min-height:43px;padding:9px clamp(20px,4.5vw,76px);font-size:13px;background:#eeece2;border-bottom:1px solid var(--line)}.topbar>div{gap:16px}.local-tag{font-size:12px;background:var(--paper)}
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/* The reading pages use open folios rather than dashboard tiles. */
.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 30px}.card{border:0;border-radius:0;box-shadow:none;background:transparent;border-bottom:1px solid var(--line);overflow:visible}.card-top{height:260px;border:0;border-radius:0;background:#f7f3e8}.card-top img{width:100%;height:100%;object-fit:contain;mix-blend-mode:normal}.card-body{padding:21px 0 25px}.card-body h3{font-size:27px}.card-body .id-line{font-size:12px}.card-body>p{font-size:16px}.card-body>.image-caption{font-size:13px}.card-bottom{margin-top:23px;border-top:0;padding-top:0}.card .reader-status{gap:6px}.badge{border-radius:2px;font-size:12px;padding:3px 7px}.filters{border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0;padding:21px 0;background:transparent}.filters input,.filters select{background:#fffcf3;border-radius:2px;min-height:45px;font-size:16px}.reader-note,.notice{border-radius:0;border:0;border-left:2px solid #8b9879;background:#e9ecdf}.media-card,.ecology-resource,.celestial-card{border-radius:0;box-shadow:none}.media-card{background:transparent;border:0;border-bottom:1px solid var(--line)}.media-copy{padding:20px 0 25px}.media-copy h3{font-size:25px}.media-grid{gap:32px}.map-section>.media-grid>.media-card:first-child{grid-column:1/-1}.media-card .image-button{border-radius:0;background:#eae9dd;height:310px}.map-section>.media-grid>.media-card:first-child .image-button{height:460px}.media-card img{object-fit:contain}.map-nav{gap:12px}.map-nav .btn{border:0;border-bottom:1px solid var(--line);background:none;padding:9px 0;margin-right:15px}.reading-block{border-radius:0;background:transparent;border-width:0 0 1px;padding:15px 0}.reading-block summary{font-family:var(--display);font-size:19px}.reading-body{font-size:17px;max-width:1040px}.world-highlights article,.group-box{border-radius:0;box-shadow:none}.celestial-copy h3{font-size:26px}.celestial-kind{font-size:12px}.celestial-description{font-size:16px}.orbit-explorer,.orbit-tabs .btn{border-radius:0}.ecology-resource .resource-image{background:#f6f1e4}.ecology-resource .resource-image img{object-fit:contain;mix-blend-mode:normal}.resource-body h3{font-size:26px}
.full-reader{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:20px 55px}.full-reader>a:first-child{grid-column:1/-1}.reader-heading{align-self:center;margin:25px 0}.reader-heading h1{font-size:clamp(38px,4vw,60px);line-height:1.4}.reader-heading .lead{max-width:440px;font-size:19px}.full-reader>.image-group{margin:20px 0 35px;align-self:start}.reader-layout{grid-column:1/-1;border-top:1px solid var(--line);padding-top:36px;grid-template-columns:210px minmax(0,1fr);gap:42px}.reader-toc{border-radius:0;background:transparent;border:0;border-left:1px solid var(--line);padding:5px 20px;top:24px}.reader-body p,.reader-body li{font-size:17px;line-height:1.95}.reader-body h2{font-family:var(--display);font-size:28px}.basic-facts{border-radius:0}.reader-table th{background:#dde4d4}.reader-table td,.reader-table th{font-size:16px}.prose-page{max-width:840px;font-size:17px}.prose-page h2{font-size:29px}.magic-embedded .panel{border-radius:0}.magic-embedded button,.magic-embedded input,.magic-embedded select{border-radius:2px}.timeline article{border-radius:0}.timeline h2{font-size:28px}
body .reader-footer{max-width:none;background:#12382c;color:#ede9d9;padding:35px clamp(24px,6vw,90px) 65px;justify-content:space-between;font-size:14px}.reader-footer nav a{color:#ede9d9;font-size:14px}.reader-footer span{font-family:var(--display);font-size:19px;line-height:1.7}.back-to-top{background:#173f30;border-color:#b3c0a6}.image-group .gallery-main img,.gallery-choice img{object-fit:contain}.image-group .image-caption{font-size:14px}
@media(min-width:1600px){.cover-story.hero{height:760px}.cover-copy{padding-left:max(7vw,calc((100vw - 1320px)/2));padding-top:145px}}
@media(max-width:1180px){.masthead.sidebar{grid-template-columns:1fr auto;padding:15px 28px;gap:10px 20px}.masthead nav{grid-column:1/-1;grid-row:2;justify-content:flex-start;gap:28px}.brand{font-size:26px}.masthead .local-work-link{grid-column:2;grid-row:1}.cover-copy{max-width:720px;padding-left:45px}.cover-copy h1{font-size:56px}.home-section-head{display:block}.home-section-head>p{margin:14px 0 0}.catalog-grid{gap:30px 22px}.full-reader{gap:20px 30px}}
@media(max-width:760px){.masthead.sidebar{padding:13px 20px;gap:10px 13px}.brand{font-size:23px;gap:10px}.brand img{width:35px;height:35px}.brand small{font-size:8px;letter-spacing:.13em}.masthead nav{gap:23px;padding:0;margin:0 -2px}.masthead nav>a{font-size:15px;padding:8px 0}.masthead .local-work-link{font-size:12px;padding:6px 9px}.topbar{padding:9px 20px;min-height:38px;font-size:12px}.topbar>div{gap:10px}.topbar>div>a{display:inline;font-size:12px}.local-tag{font-size:11px}.topbar>#breadcrumb{font-size:12px}main{padding:32px 22px 65px}.page-head{margin-bottom:25px;padding-bottom:22px}.page-head h1{font-size:36px}.page-head p{font-size:16px}.page-head .date{font-size:12px;margin-top:14px}.cover-story.hero{min-height:700px;height:calc(100svh - 155px);max-height:850px}.cover-scene>img{object-position:59% 40%}.cover-shade{background:linear-gradient(180deg,#142f240a 0%,#16332624 18%,#102c24e8 49%,#102c24 94%)}.cover-copy{position:absolute;left:0;right:0;bottom:85px;padding:0 26px;max-width:none}.cover-copy .eyebrow{font-size:10px;margin-bottom:17px}.cover-copy h1{font-size:43px;line-height:1.4;margin-bottom:20px}.cover-copy p{font-size:15px;line-height:1.9}.cover-copy .actions{gap:18px;margin-top:24px}.cover-copy .cover-cta{font-size:15px;min-width:140px;padding:9px 18px}.cover-link{font-size:13px}.cover-caption{top:14px;bottom:auto;right:15px;max-width:240px;font-size:10px;padding:6px 9px}.cover-index{padding:12px 25px;min-height:58px;align-items:center;font-size:10px;gap:12px}.home-section{padding:42px 24px}.home-section h2,.sky-feature h2{font-size:31px}.home-section-head{margin-bottom:24px}.home-section-head>p{font-size:15px}.chapter-route.intro-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.chapter-route.intro-grid>a{padding:19px 15px;border-bottom:1px solid var(--line)}.chapter-route.intro-grid>a:nth-child(2){border-right:0}.chapter-route.intro-grid>a:nth-last-child(-n+2){border-bottom:0}.chapter-route.intro-grid h3{font-size:22px}.chapter-route.intro-grid p{font-size:14px}.sky-feature{grid-template-columns:1fr;gap:0;padding:30px 24px}.sky-feature-copy{padding:7px 0 10px;justify-self:start}.sky-feature-copy p{font-size:16px}.sky-feature-art figure{height:270px}.sky-feature-art figcaption{font-size:10px}.home-geography{grid-template-columns:1fr;gap:25px}.home-geography .home-section-copy{grid-row:1}.home-section-copy p{font-size:16px}.specimen-selection{grid-template-columns:1fr;gap:30px}.specimen-image{height:270px}.specimen-selection h3{font-size:27px}.home-tools{grid-template-columns:1fr;gap:15px}.home-section.reader-shortcuts{grid-template-columns:repeat(2,minmax(0,1fr));padding:22px 15px 30px}.home-section.reader-shortcuts>a{padding:15px;border-bottom:1px solid var(--line)}.home-section.reader-shortcuts>a:nth-child(2n){border-right:0}.home-section.reader-shortcuts span{font-size:13px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 20px}.card-top{height:220px}.card-body h3{font-size:25px}.media-grid{gap:25px}.map-section>.media-grid>.media-card:first-child .image-button{height:300px}.media-card .image-button{height:250px}.media-copy h3{font-size:23px}.full-reader{display:block}.reader-heading{margin:25px 0}.reader-heading h1{font-size:42px}.reader-layout{display:block;padding-top:24px}.reader-toc{position:static;border-left:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;margin-bottom:30px}.reader-body p,.reader-body li{font-size:17px;line-height:1.9}.reader-body h2{font-size:26px}.reader-table td{font-size:16px}.reader-footer nav{margin:22px 0 0}.reader-footer nav a{font-size:13px}.prose-page h2{font-size:27px}}
@media(max-width:500px){.catalog-grid{grid-template-columns:minmax(0,1fr)}.card-top{height:285px}.card-body h3{font-size:28px}.filters{grid-template-columns:minmax(0,1fr)}.full-reader>.image-group{margin-bottom:28px}.masthead .local-work-link{max-width:140px}.brand{font-size:22px}.brand small{font-size:7px}.cover-copy h1{font-size:40px}.cover-copy p br{display:none}.cover-copy p{max-width:340px}.cover-index span:last-child{font-size:9px}}
@media(max-width:350px){.masthead.sidebar{padding:12px 15px;gap:9px}.brand{font-size:20px}.brand img{width:29px;height:29px}.brand small{font-size:7px}.masthead .local-work-link{font-size:11px;padding:6px}.cover-copy{padding:0 22px}.cover-copy h1{font-size:36px}.cover-copy .actions{gap:13px}.cover-link{font-size:12px}.chapter-route.intro-grid h3{font-size:20px}.home-section{padding-left:20px;padding-right:20px}}
/* Relative text sizes preserve browser text enlargement in the reading layer. */
.reader-body p,.reader-body li,.page-head p,.prose-page{font-size:1.0625rem}.reader-body h2{font-size:1.75rem}.reader-table td,.reader-table th{font-size:1rem}.image-group .image-caption{font-size:.875rem}
@media(max-width:350px){.brand small{display:none}}

/* Author palette: shared paper and brand; distinct subject colors; original image colors. */
:root{--paper:#f8f7f2;--white:#fffefb;--ink:#293d3b;--muted:#526563;--line:#d6dbd6;--soft:#edf1ed;--green:#183d31;--gold:#85622d;--space:#101b25;--sea:#21677e;--river:#277a87;--earth:#805b3f;--rock:#636866}
body,.masthead.sidebar{background:var(--paper)}.topbar,body[data-page=overview] .topbar{background:#f0f1ed}
/* The files themselves retain their colors. No site-wide tint or blending. */
body img,.cover-scene>img,.sky-feature-art img,.geography-plate img,.specimen-image img,.card-top img,.ecology-resource .resource-image img{filter:none;mix-blend-mode:normal}
.cover-story.hero{background:#14212a}.cover-shade{background:linear-gradient(90deg,#101a23f2 0%,#18232bce 27%,#15212a56 48%,#15212a00 73%),linear-gradient(0deg,#14212a9e 0%,transparent 30%)}
.cover-copy h1{text-shadow:0 2px 8px #10192340}.cover-copy .eyebrow{color:#f1e7cd}.cover-copy p{color:#fffaf0}.cover-caption{background:#17232de8;color:#fff9ec}.cover-index{background:#15212a66;color:#fff5dd}.cover-copy .cover-cta{background:#fff9e8;border-color:#c69d52}
.sky-feature{background:radial-gradient(ellipse at 75% 35%,#21384a 0%,#152635 42%,#101b25 78%);background-color:#101b25;color:#f6f5ed}
.sky-feature-art{background:#101b25;border:1px solid #3b5365}.sky-feature-art figure{height:auto;max-width:850px;margin:0 auto}.sky-orbit-link{display:block}.sky-orbit-link svg{display:block;width:100%;height:auto}.sky-feature-art figcaption{position:static;padding:12px 16px;color:#dce5eb;background:#142330;text-align:left;font-size:13px;line-height:1.7}.sky-feature-copy p{color:#e4eaf0}.sky-feature-copy .eyebrow{color:#e3cf9f}
.specimen-image,.card-top,.ecology-resource .resource-image{background:var(--white)}.media-card .image-button{background:#f2f3ee}.home-tools{background:#eef1ec}.filters input,.filters select{background:var(--white)}.reader-note,.notice{background:#edf1ed}
.home-geography .eyebrow,.home-geography .text-link{color:var(--sea)}.home-geography .home-section-copy h2{color:#285b6b}
#map-global>.section-head h2,#map-basin>.section-head h2,#ecology-water>.section-head h2{color:var(--sea)}
#map-continent>.section-head h2,#map-local>.section-head h2{color:var(--earth)}
#map-basin .scale-intro,#ecology-water>.scale-intro{border-left:2px solid #49899b;padding-left:16px}
#ecology-water{border-top:1px solid #bdd4dc}.celestial-image,.orbit-chart{background:var(--space)}
.reader-table th{background:#e9eeea}.gallery-choice[aria-pressed=true]{border-color:var(--gold)}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline-color:#997334}
@media(max-width:760px){.cover-shade{background:linear-gradient(180deg,#14212a00 0%,#14212a0a 20%,#14212ae8 49%,#14212a 94%)}.sky-feature{padding-bottom:35px}.sky-feature-art figcaption{font-size:12px;padding:11px 13px}}

/* Author-confirmed river scene: responsive framing, no change to species plates. */
.cover-story.hero{height:clamp(570px,49vw,800px);min-height:570px}
.cover-scene>img{object-position:100% 55%}
.cover-shade{background:linear-gradient(90deg,rgba(12,25,32,.88) 0%,rgba(18,31,38,.8) 24%,rgba(18,31,38,.59) 40%,rgba(18,31,38,.08) 59%,transparent 67%)}
.cover-copy{max-width:700px;padding-top:clamp(65px,7.2vw,116px);padding-bottom:110px}
.cover-copy h1{font-size:clamp(40px,4.3vw,68px)}
.cover-caption{bottom:63px;right:28px;background:#14232bd9;max-width:280px;font-size:12px}
.cover-index{background:#13222bc9}
.sky-feature{display:block;padding:45px clamp(20px,6vw,90px) 40px}
.sky-feature-copy{display:flex;max-width:1280px;justify-self:auto;align-items:end;gap:28px;margin:auto;padding:0 0 25px;flex-wrap:wrap}
.sky-feature-copy h2{margin:0}.sky-feature-copy .eyebrow{width:100%;margin:0 0 -14px}.sky-feature-copy p{max-width:460px;margin:0;font-size:16px}.sky-feature-copy>a{margin-left:auto;white-space:nowrap}
.sky-feature-art{max-width:1280px;margin:auto;border:0;background:transparent}
.map-precision>.media-card{max-width:100%;margin-top:22px}.map-precision .image-button{height:430px}
@media(max-width:1180px) and (min-width:761px){.cover-copy{padding-left:35px;max-width:590px}.cover-copy h1{font-size:48px}.cover-copy p{max-width:430px;font-size:16px}.cover-shade{background:linear-gradient(90deg,#0c1920ef 0%,#121f26d6 27%,#121f267a 48%,transparent 66%)}}
@media(max-width:760px){
 .cover-story.hero{height:auto;min-height:0;max-height:none;display:flex;flex-direction:column;background:var(--paper);overflow:visible}
 .cover-scene{position:relative;inset:auto;z-index:auto;width:100%;aspect-ratio:1.25;margin:0;overflow:hidden}
 .cover-scene>img{display:block;width:100%;height:100%;object-fit:cover;object-position:100% 55%}
 .cover-shade{display:none}.cover-copy{position:relative;inset:auto;bottom:auto;padding:29px 26px 32px;color:var(--ink);max-width:none}
 .cover-copy h1{font-size:40px;color:var(--ink);text-shadow:none;line-height:1.45;margin-bottom:18px}
 .cover-copy p{color:var(--ink);font-size:16px;max-width:580px}.cover-copy .eyebrow{color:#526563;font-size:10px;margin-bottom:14px}
 .cover-copy .actions{flex-wrap:wrap;gap:18px}.cover-copy .cover-link{color:var(--green)}
 .cover-caption{top:auto;bottom:12px;right:12px;left:auto;font-size:11px;padding:6px 10px;max-width:240px;text-align:right}
 .cover-index{position:relative;inset:auto;background:#edf1ed;color:var(--muted);min-height:48px;border-top:1px solid var(--line);font-size:10px}
 .sky-feature{padding:32px 20px}.sky-feature-copy{display:block;padding:0 0 22px}.sky-feature-copy .eyebrow{margin-bottom:12px}.sky-feature-copy p{margin:12px 0}.sky-feature-copy>a{display:inline-block}.map-precision .image-button{height:280px}
}
@media(max-width:350px){.cover-copy{padding:25px 22px 29px}.cover-copy h1{font-size:35px}.cover-caption{font-size:10px}}

/* Binary reading folio: restrained paired plate beside actual information. */
.binary-folio{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.25fr);gap:32px;align-items:start}
.binary-plate{margin:0;background:radial-gradient(ellipse at 50% 43%,#21333e,#101b25 78%);background-color:#101b25;color:#f3efdf;padding:28px 24px 23px;min-width:0;align-self:start}
.binary-kicker{font:12px/1.6 Georgia,serif;letter-spacing:.2em;color:#d6c699;margin-bottom:9px}.binary-plate>h3{font-size:24px;font-weight:400;margin:0;text-align:left}
.binary-pair{display:grid;grid-template-columns:1.08fr 1fr;gap:5px;align-items:end;margin:20px 0}
.binary-star{border:0;background:none;color:#f3efdf;padding:0;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:end}
.binary-star img{width:100%;max-width:240px;height:auto;aspect-ratio:1;object-fit:contain;transition:transform .2s}
.binary-ur-b img{width:84%}.binary-star:hover img{transform:scale(1.035)}.binary-star span{font-family:var(--display);font-size:21px;line-height:1.6;margin-top:4px}.binary-star small{font:11px/1.6 Georgia,serif;letter-spacing:.12em;display:block;color:#c8d5df}
.binary-star:focus-visible{outline:2px solid #e2c891;outline-offset:5px}.binary-plate figcaption{border-top:1px solid #536575;padding-top:16px;color:#c8d5df;font-size:13px;line-height:1.8}
.binary-profiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;min-width:0}.binary-profile.celestial-card{background:transparent;border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0;min-width:0;padding:20px 0}.binary-profile .celestial-copy{padding:0;display:flex;flex-direction:column;height:100%}.binary-profile .celestial-copy h3{font-size:30px;margin-top:8px}.binary-profile .celestial-description{font-size:15px}.binary-profile .celestial-facts{padding-left:18px;margin:0 0 22px}.binary-profile .celestial-facts li{font-size:15px;line-height:1.9}.binary-profile .celestial-card-end{padding-top:8px}.binary-profile .celestial-card-end .text-link{font-size:14px}.celestial-image{aspect-ratio:auto;height:clamp(210px,23vw,310px)}
@media(max-width:1050px){.binary-folio{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:25px}.binary-plate{padding:24px 18px}.binary-plate>h3{font-size:21px}.binary-profiles{gap:20px}.binary-profile .celestial-facts li{font-size:14px}}
@media(max-width:850px){.binary-folio{grid-template-columns:1fr}.binary-plate{padding:25px 26px}.binary-pair{max-width:490px;margin:18px auto}.binary-plate>h3{font-size:25px}.binary-profile .celestial-facts li{font-size:16px}.binary-profiles{gap:25px}.celestial-image{height:270px}}
@media(max-width:500px){.binary-plate{padding:23px 17px 20px}.binary-plate>h3{font-size:23px}.binary-profiles{grid-template-columns:1fr;gap:22px}.binary-profile .celestial-description,.binary-profile .celestial-facts li{font-size:16px}.binary-plate figcaption{font-size:12px}.binary-star span{font-size:20px}.celestial-image{height:250px}}
@media(prefers-reduced-motion:reduce){.binary-star img{transition:none}}

.binary-profile .celestial-description{min-height:0;margin-bottom:22px}.binary-profile .celestial-facts{padding-left:0;padding-top:10px}.celestial-card-end button.text-link{border:0;background:transparent;padding:0;text-align:left;cursor:pointer}