@charset "UTF-8";
:root{color-scheme:light;--bg:#faf9f4;--paper:#fff;--ink:#253c34;--muted:#66766e;--brand:#245c49;--soft:#edf3ed;--line:#e0e7de;--warm:#f4eddf;--blue:#e7f1f7;--orange:#d28c4d;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit}a{color:var(--brand);text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ba7938;outline-offset:4px}a{text-decoration:none}img{display:block;max-width:100%;height:auto}button{border:0}h1,h2,h3,p{margin:0}h1{font-size:clamp(1.85rem,3.3vw,2.65rem);line-height:1.55;letter-spacing:.045em;font-weight:700}h2{font-size:1.35rem;line-height:1.65}h3{font-size:1.1rem;line-height:1.6}.muted{color:var(--muted);font-size:.875rem}.eyebrow{color:var(--brand);font-size:.75rem;letter-spacing:.12em;font-weight:700;margin-bottom:7px}.site-header{background:var(--paper);border-bottom:1px solid var(--line)}.header-inner{max-width:1180px;padding:21px 30px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);font-size:1.15rem;font-weight:700;white-space:nowrap}.brand small{display:block;font-size:.65rem;letter-spacing:.15em;color:var(--muted);font-weight:500;line-height:1.4}.brand-mark{display:grid;place-items:center;background:var(--brand);color:#fff8e7;border-radius:12px;width:38px;height:43px;font-family:Georgia,serif;font-size:1.6rem}.site-header nav{display:flex;gap:7px;flex-wrap:wrap}.site-header nav a{font-size:.875rem;color:var(--muted);padding:9px 13px;border-radius:8px}.site-header nav a[aria-current=page]{color:var(--brand);background:var(--soft);font-weight:700}.page{max-width:1180px;margin:auto;padding:0 30px 50px}.hero{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;padding:35px 0 30px}.hero-copy{padding:10px 0}.hero-description{margin-top:16px;font-size:.95rem;color:var(--muted)}.hero img{width:100%;border-radius:18px;aspect-ratio:1.5;object-fit:cover}.hero-labels{display:flex;gap:10px;margin-top:19px}.hero-labels span{font-size:.75rem;background:var(--soft);border-radius:5px;padding:3px 12px;color:var(--brand)}.section-title{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;flex-wrap:wrap}.explorer{padding-top:5px}.category-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-bottom:25px}.category-button{min-width:0;text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:13px;padding:15px 12px;display:flex;flex-direction:column;gap:4px;position:relative;transition:background .15s,border-color .15s}.category-button:hover{border-color:var(--brand)}.category-button[aria-pressed=true]{background:var(--brand);color:#fff;border-color:var(--brand)}.category-index{font-size:.75rem;color:var(--muted);letter-spacing:.05em}.category-button[aria-pressed=true] .category-index,.category-button[aria-pressed=true] small{color:#d4e4d9}.category-button strong{font-size:.95rem}.category-button small{font-size:.75rem;color:var(--muted)}.search-row{display:flex;gap:18px;align-items:center;padding:19px;background:var(--soft);border-radius:13px;margin-bottom:30px}.search-field{display:flex;align-items:center;gap:10px;background:white;border:1px solid #cbd8cd;border-radius:9px;padding:9px 14px;flex:1;min-width:0}.search-field span{font-size:1.55rem;line-height:1}.search-field input{width:100%;border:0;background:transparent;min-width:0;font-size:1rem;color:var(--ink);outline-offset:7px;padding:3px}.search-field input::placeholder{color:#768079;font-size:.875rem}.text-button{background:none;white-space:nowrap;color:var(--brand);text-decoration:underline;text-underline-offset:4px;font-size:.875rem;padding:8px}.results-heading{display:flex;gap:15px;justify-content:space-between;align-items:center;margin-bottom:18px}.results-heading>span{white-space:nowrap;font-size:.875rem;color:var(--muted)}.subgroups{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 22px}.subgroups:empty{display:none}.subgroups button{font-size:.875rem;border:1px solid var(--line);border-radius:30px;background:white;padding:6px 14px}.subgroups button[aria-pressed=true]{background:var(--soft);border-color:var(--brand);color:var(--brand)}.field-section{margin-bottom:26px}.field-heading{display:flex;align-items:baseline;gap:12px;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:12px}.field-heading h3{font-size:1rem}.field-heading span{font-size:.75rem;color:var(--muted)}.item-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.item-card{display:flex;flex-direction:column;border:1px solid var(--line);background:var(--paper);border-radius:13px;padding:18px 20px;color:var(--ink);transition:transform .15s,border-color .15s;min-width:0}.item-card:hover{border-color:#789782;transform:translateY(-2px)}.item-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}.item-code{font-size:.75rem;font-weight:600;color:var(--brand);background:var(--soft);padding:2px 8px;border-radius:4px;overflow-wrap:anywhere}.item-group{color:var(--muted);font-size:.75rem}.item-card h3{font-size:1rem;margin-bottom:7px}.item-card p{font-size:.875rem;color:var(--muted);flex:1}.item-card .read{margin-top:13px;font-size:.75rem;color:var(--brand)}.empty{text-align:center;padding:45px 18px;background:var(--paper);border-radius:14px}.empty p{margin:12px 0 22px;color:var(--muted)}.primary,.outline-button{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:9px;font-size:.875rem;min-height:44px}.primary{background:var(--brand);color:white}.outline-button{border:1px solid #9cac98;color:var(--brand);background:transparent;white-space:nowrap}.character-note{display:flex;align-items:center;justify-content:space-between;gap:25px;background:var(--warm);padding:26px 30px;border-radius:16px;margin-top:25px}.character-note h2{font-size:1.25rem;margin:8px 0}.character-note p{font-size:.875rem;color:var(--muted)}.label{display:inline-block;font-size:.75rem;letter-spacing:.03em;color:var(--brand);background:var(--soft);padding:3px 9px;border-radius:4px}.article-page{max-width:950px;padding-top:28px}.breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:.875rem;color:var(--muted);margin-bottom:27px}.article-head{margin-bottom:25px}.article-head h1{margin:12px 0 7px}.article-head .english{font-size:1rem;color:var(--muted)}.summary-box{padding:24px 28px;border-radius:15px;background:var(--soft);margin:24px 0}.summary-box h2{font-size:1rem;margin-bottom:9px}.summary-box p{font-size:1.1rem}.article-body{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:35px}.article-content h2{font-size:1.2rem;margin:29px 0 12px}.article-content p{font-size:1rem;line-height:1.95}.article-content ul{padding-left:1.3em}.article-content li{margin:8px 0}.note-box{border-left:3px solid var(--orange);padding:12px 18px;background:#faf2e5;margin-top:24px}.note-box h3{font-size:.875rem;margin-bottom:7px}.note-box p{font-size:.95rem}.article-aside{padding-top:26px}.article-aside img{border-radius:12px;margin-bottom:13px}.article-aside h3{font-size:.875rem}.article-aside p{font-size:.875rem;color:var(--muted);margin-top:9px}.related-list{display:flex;flex-direction:column;gap:9px;margin-top:14px}.related-list a{font-size:.875rem;border-bottom:1px solid var(--line);padding-bottom:9px}.sources{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;font-size:.875rem}.sources h2{font-size:1rem}.sources a{display:block;text-decoration:underline;margin:9px 0;overflow-wrap:anywhere}.source-note{font-size:.75rem;color:var(--muted);margin-top:12px}.quiz{padding:20px;border:1px solid var(--line);border-radius:13px;margin-top:25px;background:white}.quiz h2{margin:0 0 9px;font-size:1rem}.quiz button{padding:10px 13px;border:1px solid var(--line);border-radius:8px;background:var(--bg);font-size:.875rem;text-align:left}.quiz-answers{display:grid;gap:9px;margin-top:12px}.quiz button[aria-pressed=true]{border-color:var(--brand);background:var(--soft)}.quiz-result{margin-top:13px!important;font-size:.875rem!important;color:var(--brand)}.secondary-page{max-width:950px;padding-top:38px}.secondary-page h1{margin:10px 0 16px}.lead{color:var(--muted)}.comic-hero{width:100%;max-width:650px;margin:28px auto;border-radius:18px}.comic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin:20px 0 28px}.comic-panel{display:flex;flex-direction:column;border:1px solid var(--line);background:white;min-height:235px;padding:20px 18px;border-radius:12px}.panel-number{font-family:Georgia,serif;font-size:1.25rem;color:var(--orange)}.comic-panel p{margin:14px 0;flex:1;font-size:.95rem}.speaker{font-size:.75rem;font-weight:600;padding-top:10px;border-top:1px solid var(--line)}.speaker.penguin{color:#36657e}.speaker.capy{color:#866033}footer{border-top:1px solid var(--line);background:#f0f2ea}.footer-inner{max-width:1180px;margin:auto;padding:25px 30px;display:flex;justify-content:space-between;gap:25px;font-size:.75rem;color:var(--muted)}.footer-inner strong{font-size:.95rem;color:var(--ink)}.footer-inner p{margin-top:5px}.footer-inner>span{white-space:nowrap}.skip{position:absolute;top:-100px;left:12px;background:var(--brand);color:white;padding:10px 20px;z-index:10}.skip:focus{top:12px}.noscript{padding:20px;text-align:center}[hidden]{display:none!important}
@media(min-width:1450px){.hero{grid-template-columns:1.05fr 1fr}.hero img{max-height:305px;object-fit:contain;justify-self:end;width:auto}}
@media(max-width:1000px){.category-grid{grid-template-columns:repeat(4,1fr)}.header-inner{gap:14px;flex-wrap:wrap}.item-grid{grid-template-columns:repeat(2,1fr)}.hero{gap:22px}.hero-description br{display:none}.hero-labels{margin-top:12px}.hero h1{font-size:2rem}}
@media(max-width:650px){.header-inner{padding:17px 18px;gap:14px}.brand{font-size:1.05rem}.site-header nav{gap:2px;width:100%;justify-content:space-between}.site-header nav a{padding:8px 10px}.page{padding-left:18px;padding-right:18px}.hero{grid-template-columns:1fr;padding-top:23px;gap:17px}.hero-copy{padding:0}.hero h1{font-size:1.9rem}.hero img{max-height:220px;object-fit:contain;background:#fffbee}.hero-description{font-size:.875rem}.hero-labels{display:none}.category-grid{grid-template-columns:repeat(2,1fr);gap:9px}.category-button{padding:12px 14px;display:grid;grid-template-columns:1fr auto;gap:0}.category-index{grid-column:1/-1;font-size:.75rem}.category-button strong{font-size:1rem}.category-button small{align-self:center}.category-grid .category-button:last-child{grid-column:1/-1}.section-title{gap:6px}.section-title h2{font-size:1.2rem}.search-row{padding:12px;gap:7px;align-items:stretch;flex-direction:column}.search-row .text-button{align-self:flex-end}.search-field{padding:9px 10px}.search-field input::placeholder{font-size:.875rem}.item-grid{grid-template-columns:1fr}.item-card{padding:16px 19px}.character-note{flex-direction:column;align-items:flex-start;padding:23px}.results-heading{align-items:flex-start}.results-heading h2{font-size:1.2rem}.results-heading .muted{font-size:.875rem}.article-page{padding-top:22px}.article-body{grid-template-columns:1fr;gap:15px}.article-aside{padding-top:5px}.article-aside img{max-width:300px}.article-head h1{font-size:1.9rem}.summary-box{padding:20px}.article-content h2{margin-top:22px}.comic-grid{grid-template-columns:repeat(2,1fr)}.comic-panel{padding:15px;min-height:235px}.footer-inner{padding:24px 18px;flex-direction:column;gap:9px}.secondary-page{padding-top:26px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* One shared results region keeps every field reachable above the list. */
.category-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:10px;align-items:stretch}.category-button{min-height:104px}.category-button strong{overflow-wrap:anywhere}.category-grid .category-button:last-child{grid-column:auto}.directory-help{color:var(--muted);font-size:.875rem;margin:0 0 14px}.updates{display:grid;grid-template-columns:90px minmax(0,1fr);gap:20px;margin:0 0 38px;padding:20px 24px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.updates h2{font-size:1rem;padding-top:2px}.updates ul{list-style:none;margin:0;padding:0}.updates li{display:grid;grid-template-columns:92px minmax(0,1fr);gap:14px;font-size:.875rem;line-height:1.8}.updates li+li{margin-top:9px;padding-top:9px;border-top:1px solid var(--line)}.updates time{color:var(--muted);font-variant-numeric:tabular-nums}.updates a{display:inline-block;text-decoration:underline;text-underline-offset:3px}.disease-list-heading{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin:32px 0 16px}.disease-list-heading h2{font-size:1.15rem}.disease-list-heading span{font-size:.875rem;color:var(--muted);white-space:nowrap}.disease-empty{border:1px solid var(--line);margin-bottom:40px}.disease-empty h2{font-size:1.2rem;margin-top:16px}
@media(max-width:1000px){.category-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:650px){.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-button{min-height:86px;grid-template-columns:minmax(0,1fr) auto;align-content:center;gap:2px 8px}.category-button strong{font-size:.95rem}.updates{grid-template-columns:1fr;gap:10px;padding:17px 18px;margin-bottom:28px}.updates li{grid-template-columns:1fr;gap:2px}.site-header nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.site-header nav a,.site-header nav button{text-align:center;min-height:44px;display:flex;align-items:center;justify-content:center}.disease-list-heading{align-items:flex-start}.disease-empty{padding:30px 18px}}


.visual-points{margin:24px 0 30px}.visual-points>h2{font-size:1.2rem;margin-bottom:16px}.visual-points-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.visual-point{min-width:0;margin:0;background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden}.visual-point>a{display:block;position:relative}.visual-point img{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;background:#fffdf3}.visual-enlarge{display:block;text-align:right;padding:5px 12px;font-size:.875rem;background:var(--soft)}.visual-point figcaption{padding:16px}.visual-number{font-size:.875rem;font-weight:700;color:var(--brand);letter-spacing:.05em}.visual-point h3{font-size:1rem;margin:6px 0 9px}.visual-point p{font-size:1rem;line-height:1.85;color:var(--muted)}
@media(max-width:720px){.visual-points-grid{grid-template-columns:1fr}.visual-point{max-width:480px;width:100%;margin-inline:auto}.visual-point figcaption{padding:18px 20px}.visual-points>h2{font-size:1.1rem}}

/* Four-part article template */
.visual-points-grid.four-points{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.learning-section{margin-bottom:30px}.learning-section p+p{margin-top:14px}.learning-section li+li{margin-top:10px}
.article-table-wrap{overflow-x:auto;margin:18px 0 24px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}
.article-table-wrap table{border-collapse:collapse;width:100%;font-size:1rem;line-height:1.8;text-align:left}
.article-table-wrap th,.article-table-wrap td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.article-table-wrap thead th{background:var(--soft);font-weight:700}.article-table-wrap tbody th{width:28%;min-width:110px;font-weight:600}.article-table-wrap tr:last-child>*{border-bottom:0}
@media(max-width:720px){.visual-points-grid.four-points{grid-template-columns:1fr}.article-table-wrap th,.article-table-wrap td{padding:12px}.learning-section{margin-bottom:25px}}

/* Approved diagram-first illustrations: preserve captions for legacy items. */
.diagram-first .visual-theme{margin:28px 0 34px}
.diagram-first .visual-theme>h3{font-size:1.2rem;line-height:1.6;margin:0 0 14px;color:var(--ink)}
.diagram-first .visual-points-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.diagram-first .visual-points-grid.single-point{grid-template-columns:minmax(0,800px);justify-content:center}
.diagram-first .visual-point img{display:block;background:#fff}
@media(max-width:720px){.diagram-first .visual-points-grid{grid-template-columns:1fr;gap:18px}.diagram-first .visual-point{max-width:none}.diagram-first .visual-theme{margin:24px 0 28px}.diagram-first .visual-theme>h3{font-size:1.08rem}}

/* Private feedback collection */
.feedback-nav{background:var(--brand);color:#fff;border-radius:8px;padding:9px 13px;font-size:.875rem;font-weight:700}.feedback-callout{margin:36px 0 12px;padding:24px;background:var(--soft);border:1px solid var(--line);border-radius:14px}.feedback-callout p{margin:8px 0 16px}.feedback-callout .outline-button{background:#fff}
#feedback-dialog{width:min(620px,calc(100% - 24px));max-height:calc(100dvh - 32px);overflow:auto;border:1px solid var(--line);border-radius:18px;padding:28px;color:var(--ink);background:#fff;box-shadow:0 20px 70px #0d211a40}#feedback-dialog::backdrop{background:#122b2466}#feedback-dialog[open]{animation:feedback-enter .15s ease-out}.feedback-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:12px}.feedback-heading h2{margin-top:6px;font-size:1.5rem}.feedback-close{flex-shrink:0;background:var(--soft);border-radius:50%;width:44px;height:44px;font-size:1.7rem;line-height:1}.feedback-field{display:block;font-weight:700;margin-top:20px}.feedback-field input,.feedback-field select,.feedback-field textarea{display:block;width:100%;font:inherit;font-weight:400;font-size:1rem;line-height:1.65;padding:11px 12px;border:1px solid #9daa9f;border-radius:8px;margin-top:7px;background:#fff;color:var(--ink)}.feedback-field textarea{resize:vertical;min-height:150px}.feedback-field input:focus-visible,.feedback-field select:focus-visible,.feedback-field textarea:focus-visible{outline:3px solid #ba7938;outline-offset:3px}.feedback-kind{padding:0;border:0;margin:20px 0 0}.feedback-kind legend{font-weight:700;margin-bottom:8px}.feedback-kind label{display:inline-flex;align-items:center;gap:5px;margin:0 16px 8px 0}.feedback-kind input{width:18px;height:18px;accent-color:var(--brand)}.feedback-optional,.feedback-meta{font-weight:400;font-size:.875rem;color:var(--muted)}.feedback-meta{display:flex;gap:14px;justify-content:space-between;margin-top:7px}.feedback-meta span{white-space:nowrap}.feedback-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.feedback-submit{width:100%;margin-top:22px}.feedback-submit:disabled{opacity:.65;cursor:wait}#feedback-result{margin-top:16px;border-left:4px solid #ad3c27;padding:10px 14px;background:#fff1ec;color:#7c281a}#feedback-success{padding:18px 0 8px}#feedback-success p{margin:12px 0}#feedback-success button{margin-top:10px}
@keyframes feedback-enter{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){#feedback-dialog[open]{animation:none}}@media(max-width:650px){#feedback-dialog{padding:20px;max-height:calc(100dvh - 20px)}.feedback-heading h2{font-size:1.3rem}.feedback-meta{flex-direction:column;gap:3px}.feedback-callout{padding:20px}.feedback-nav{min-height:44px}}

/* Responsive delivery preserves the original illustration for enlargement. */
picture{display:block}.hero-illustration{min-width:0}.article-code{display:block;font-weight:600;color:var(--brand)}.english-name{display:block;margin-top:4px;overflow-wrap:anywhere;line-height:1.6}.related-reason{display:block;margin-top:5px;color:var(--muted);font-size:.8rem;line-height:1.65}.related-list strong{font-weight:600}.article-content{min-width:0}.article-table-wrap table{overflow-wrap:break-word}
@media(min-width:1450px){.hero-illustration{justify-self:end}.hero-illustration img{width:auto;max-width:100%}}