:root{--ink:#173b55;--muted:#5c6e78;--blue:#195f87;--line:#d8e2e8;--paper:#f5f8fa;--green:#227266}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid #d28b1b;outline-offset:4px}.skip{position:absolute;left:16px;top:-100px;background:white;padding:10px;z-index:10}.skip:focus{top:8px}.wrap{max-width:1100px;margin:auto;padding:0 32px}header{background:white;border-bottom:1px solid var(--line)}.head{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 0;flex-shrink:0}.logo-mark,.logo-word{display:block;line-height:0}.logo-mark img{display:block;width:62px;height:auto}.logo-word img{display:block;width:128px;height:auto}.brand .tag{white-space:nowrap}.head{min-height:116px}
.tag{font-size:11px;letter-spacing:.12em;color:var(--muted)}nav{display:flex;gap:26px;font-size:13px;font-weight:600}.hero{background:#edf3f6;border-bottom:1px solid var(--line);overflow:hidden}.hero-inner{position:relative;padding-top:64px;padding-bottom:56px}.eyebrow{font-size:11px;letter-spacing:.2em;font-weight:700;color:var(--green);margin:0 0 16px}h1{font-size:clamp(30px,4vw,48px);line-height:1.5;letter-spacing:.04em;margin:0 0 14px}h1 span{color:var(--blue)}.lead{font-size:15px;color:var(--muted);margin:0 0 30px;max-width:670px}.searchbox{max-width:840px;position:relative}.search-label{display:block;font-weight:700;font-size:13px;margin-bottom:8px}.searchrow{display:flex;padding:7px;border:1px solid #aebfca;border-radius:10px;background:white;box-shadow:0 8px 26px #173b5509;gap:8px}.searchrow input{min-width:0;flex:1;border:0;background:transparent;padding:12px 14px;font-size:17px;color:var(--ink)}.searchrow button{border:0;border-radius:6px;background:var(--blue);color:white;font-weight:700;padding:12px 28px;cursor:pointer;white-space:nowrap}.searchrow button:hover{background:#124966}.hint{font-size:12px;color:var(--muted);margin:9px 0 14px}.examples{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px}.examples>span{color:var(--muted);margin-right:3px}.chip{border:1px solid #cedbe3;border-radius:5px;padding:4px 12px;background:#ffffffb3}.chip:hover{background:white}.section{padding-top:38px;padding-bottom:4px}.section-title{display:flex;align-items:baseline;gap:16px;margin-bottom:18px}h2{font-size:19px;margin:0;letter-spacing:.03em}.section-title small{font-size:12px;font-weight:400;color:var(--muted)}.topics{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.topic{background:white;border:1px solid var(--line);border-radius:8px;padding:18px 12px;text-align:center;font-size:13px;font-weight:600;transition:transform .15s,border-color .15s}.topic:hover{transform:translateY(-2px);border-color:var(--blue);text-decoration:none}.topic b{font-size:12px;color:var(--blue);font-weight:400;display:block;letter-spacing:.08em;margin-bottom:7px}.secondary{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}.card{background:white;border:1px solid var(--line);border-radius:10px;padding:25px 26px}.card .kicker{font-size:10px;color:var(--green);letter-spacing:.15em;font-weight:700;margin:0 0 4px}.card h2{font-size:20px}.card p{font-size:13px;color:var(--muted);margin:7px 0 18px}.minirow{display:flex;gap:8px}.minirow input{width:100%;min-width:0;border:1px solid #bccbd4;border-radius:5px;padding:10px 11px;font-size:16px;color:var(--ink);background:#fff}.minirow button{border:1px solid var(--ink);color:var(--ink);background:white;border-radius:5px;padding:10px 17px;white-space:nowrap;cursor:pointer;font-size:13px;font-weight:700}.minirow button:hover{background:var(--paper)}.mini-label{font-size:12px;display:block;margin:0 0 6px}.mini-example{display:inline-block;margin-top:12px;font-size:12px;color:var(--blue)}.browse{padding:32px 0 38px}.browse h2{font-size:15px;margin-bottom:12px}.browselinks{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px}.browselinks a:after{content:' →';color:var(--blue)}footer{border-top:1px solid var(--line);background:white;padding:26px 0 30px}.foot{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}.foot p{margin:0;color:var(--muted);font-size:11px;max-width:710px}.foot a{font-size:12px;white-space:nowrap;color:var(--blue)}.foot strong{font-weight:600;color:var(--ink)}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media(max-width:760px){.wrap{padding-left:20px;padding-right:20px}.head{min-height:76px;gap:12px}.word{font-size:27px}nav{gap:16px;font-size:12px}nav a:last-child{display:none}.hero-inner{padding-top:38px;padding-bottom:32px}.lead{font-size:14px;margin-bottom:24px}.eyebrow{margin-bottom:12px}.topics{grid-template-columns:repeat(3,1fr)}.secondary{grid-template-columns:1fr;gap:14px;margin-top:26px}.section{padding-top:28px}.section-title{gap:8px;flex-wrap:wrap}.card{padding:22px}.foot{flex-direction:column;gap:14px}.searchrow button{padding:12px 18px}.searchrow input{font-size:16px;padding:11px 6px}.browselinks{flex-direction:column;gap:10px}.tag{font-size:10px}.searchrow{gap:4px}}@media(max-width:360px){.wrap{padding-left:14px;padding-right:14px}nav{gap:10px}.searchrow button{padding:12px}.topic{padding:16px 5px;font-size:12px}}

.library-page{padding-top:28px;padding-bottom:48px}.library-page h1{font-size:32px;overflow-wrap:anywhere}.breadcrumb{justify-content:flex-start;flex-wrap:wrap;font-weight:400;font-size:13px;margin-bottom:24px;gap:8px 12px}.library-note{padding:16px;border-left:3px solid var(--blue);background:#edf3f6}.library-panel{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;margin:22px 0;min-width:0}.library-panel h2{margin:0 0 14px}.library-panel label{display:block;margin-bottom:8px;font-size:14px}.library-row{display:flex;gap:12px;flex-wrap:wrap}.library-row select{min-width:0;max-width:100%;flex:1;font:inherit;padding:10px;border:1px solid #aebfca;border-radius:6px;background:#fff}.library-row button,.library-actions a{font:inherit;min-height:48px;padding:10px 18px;border:1px solid var(--blue);border-radius:6px;background:var(--blue);color:white;font-weight:700}.library-current,.library-filename,.library-about,.library-panel p{overflow-wrap:anywhere}.library-files{list-style:none;margin:0;padding:0}.library-files li{padding:16px 0;border-top:1px solid var(--line)}.library-files h3{margin:4px 0 12px;font-size:19px}.library-badge{display:inline-block;padding:3px 9px;background:#edf3f6;border-radius:5px;color:var(--blue);font-size:13px}.library-actions{display:flex;flex-wrap:wrap;gap:12px}.library-actions a{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.library-empty{padding:18px;background:#f5f8fa;border-radius:8px}.library-filename{font-size:12px;color:var(--muted)}.library-about{font-size:13px;color:var(--muted)}@media(max-width:760px){.library-page h1{font-size:26px}.library-panel{padding:18px}.library-row{flex-direction:column}.library-row>*{width:100%}.library-actions a{width:100%}}

/* PDF themes: ranking theme navigation, stacked without a dropdown on narrow screens. */
.library-themes{margin:22px 0}.library-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:26px;align-items:start}
.pdf-theme-nav{display:block;min-width:0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:19px 12px;font-weight:400}
.pdf-theme-nav h3{font-size:15px;margin:0 9px 8px}.pdf-theme-nav .theme-count-help{font-size:11px;color:var(--muted);margin:0 9px 13px;overflow-wrap:anywhere}
.pdf-theme-nav ul{list-style:none;margin:0;padding:0}.pdf-theme-nav .theme-link{display:flex;align-items:center;gap:9px;min-height:46px;padding:9px 10px;border-radius:6px;color:var(--ink);font-size:13px;line-height:1.6;border:1px solid transparent}
.pdf-theme-nav .theme-link:hover{background:#f0f5f8;text-decoration:none}.pdf-theme-nav .theme-link.active{background:#e8f2f9;border-color:#a8c9dd;color:var(--blue);font-weight:700}
.pdf-theme-nav .theme-name{min-width:0;overflow-wrap:anywhere}.pdf-theme-nav .theme-count{margin-left:auto;flex-shrink:0;font-size:11px;font-variant-numeric:tabular-nums;border-radius:4px;background:#f0f4f6;padding:1px 6px;color:var(--muted)}
.pdf-theme-nav .folder{width:16px;height:12px;border:1.5px solid currentColor;border-radius:2px;position:relative;flex-shrink:0;color:var(--blue);margin-top:3px}.pdf-theme-nav .folder:before{content:'';position:absolute;left:0;top:-5px;width:7px;height:4px;border:1.5px solid currentColor;border-bottom:0;border-radius:2px 2px 0 0}
.pdf-theme-results.library-panel{margin:0;min-width:0}.pdf-result-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 12px}.pdf-theme-results h3{font-size:19px;margin:0;min-width:0;overflow-wrap:anywhere}.pdf-result-count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;margin:0}.library-files h4{margin:4px 0 12px;font-size:19px;overflow-wrap:anywhere}
@media(max-width:760px){.library-layout{grid-template-columns:minmax(0,1fr);gap:22px}.pdf-theme-nav .theme-link{display:flex}.pdf-theme-results{scroll-margin-top:20px}.library-actions a{max-width:100%;overflow-wrap:anywhere}}