@import url('./solution-geometry.css');
@import url('./solution-motion.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800&family=Noto+Serif+JP:wght@500;600;700&display=swap');
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@media(max-width:1100px){.header{padding:22px 30px}.header-note{display:none}main{padding:0 30px}.hero{gap:40px;padding:50px 5px}.progress-strip{padding:23px;gap:22px}.progress-numbers{gap:20px}.progress-title h2{font-size:14px}.subject-card{padding:20px 18px 16px}.card-order{font-size:7px}.lesson-workspace{grid-template-columns:145px minmax(0,1fr);gap:22px}.sidebar{padding-right:12px}.experiment-grid{grid-template-columns:minmax(0,1fr)}.controls-panel{border-left:0;border-top:1px solid var(--line);padding:18px 20px}.controls-panel h2{margin:5px 0 12px}.controls-panel #controls{display:flex;gap:24px}.control{flex:1;min-width:0;margin:5px 0}.control-tip{display:none}.footer{margin-left:30px;margin-right:30px}.metrics strong{font-size:21px}}
@media(max-width:760px){.header{padding:17px 20px;gap:15px}.brand{font-size:18px;gap:9px}.brand-icon{width:36px;height:37px;font-size:29px;line-height:33px}.brand-icon i{right:4px;top:17px}.brand small{font-size:6px}.header nav{gap:15px;font-size:10px}.header nav a:nth-child(3){display:none}main{padding:0 20px}.hero{gap:25px;padding:38px 0 33px}.hero .eyebrow{font-size:7px;letter-spacing:.08em}.tiny-line{width:17px;margin-right:4px}.hero h1{font-size:35px;margin-top:14px}.hero-copy{font-size:11px;margin-top:15px}.hero-art{align-self:center}.hand-note{font-size:8px}.pill{font-size:8px;padding:5px 8px}.hero-tags{gap:5px;margin-top:18px}.progress-strip{flex-wrap:wrap;gap:20px}.progress-title{flex-basis:50%}.progress-title h2{font-size:14px}.progress-numbers{margin-left:auto;gap:16px}.progress-numbers strong{font-size:25px}.progress-actions{width:100%;flex-direction:row;gap:10px}.progress-actions>*{flex:1}.storage-note{font-size:9px}.subjects-section{padding-top:35px}.section-heading h2{font-size:20px}.section-aside{font-size:8px}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.subject-card{padding:18px 15px 14px}.subject-symbol{width:35px;height:35px;font-size:23px}.card-order{font-size:6px;letter-spacing:0}.card-top{gap:7px}.card-arrow{font-size:15px}.subject-card h3{font-size:21px;margin-top:17px}.subject-card>p{font-size:10px}.topic-preview{gap:4px;min-height:60px;margin-top:15px}.topic-preview span{font-size:8px}.card-bottom{font-size:8px;flex-wrap:wrap;gap:7px}.physics-link{padding:18px;gap:15px}.physics-link strong{font-size:11px}.physics-link p{font-size:9px}.how-section{padding-top:35px}.how-grid{gap:17px}.how-grid article{padding-left:14px}.how-grid h3{font-size:12px;line-height:1.8}.how-grid p{font-size:10px}.footer{margin:10px 20px 0;gap:18px;flex-wrap:wrap;padding:25px 0}.footer>p{font-size:9px}.footer>div{font-size:9px;gap:16px}.lesson-workspace{display:block;padding-top:22px}.sidebar{display:none}.lesson-title-row h1{font-size:27px}.breadcrumb{margin-bottom:18px}.lesson-summary{font-size:12px}.experiment-grid{grid-template-columns:1fr}.controls-panel #controls{gap:20px}.control label{font-size:10px}.metrics strong{font-size:20px}.lesson-main{padding-bottom:20px}.lesson-list{padding-top:10px}.lesson-card{gap:20px;padding:24px 5px}.lesson-card h2{font-size:19px}.lesson-card p{font-size:11px}.lesson-goal{font-size:10px}.subject-intro h1{font-size:37px}.large-symbol{padding-right:10px}.subject-intro>p:not(.eyebrow){font-size:12px}}
@media(max-width:480px){.header nav{gap:11px;font-size:9px}.header nav a:last-child{font-size:8px}.hero{grid-template-columns:1fr;gap:25px;padding-top:32px}.hero h1{font-size:41px;line-height:1.5}.hero-copy{font-size:12px;line-height:2}.hero-art{width:68%;max-width:270px;justify-self:end;margin-top:-20px}.hero .eyebrow{font-size:8px}.hand-note{font-size:7px}.hero-tags{margin-top:18px}.progress-strip{padding:20px 18px}.progress-title{flex-basis:100%}.progress-title h2{font-size:15px}.progress-numbers{width:100%;justify-content:space-around;margin:0}.progress-numbers strong{font-size:29px}.progress-actions{flex-direction:column;gap:7px}.section-heading{align-items:flex-start;flex-direction:column;gap:10px;margin-bottom:20px}.section-heading h2{font-size:20px}.section-aside{font-size:9px}.subject-grid{gap:10px}.subject-card{padding:16px 12px 13px}.card-top{flex-wrap:wrap;gap:8px}.card-order{order:3;width:100%;font-size:7px}.card-arrow{margin-left:auto}.subject-card h3{font-size:20px;letter-spacing:0;margin-top:13px}.subject-card>p{font-size:10px;min-height:58px}.topic-preview{min-height:80px;display:flex;flex-direction:column;align-items:flex-start}.topic-preview span{font-size:8px;padding:3px 5px}.card-bottom{display:block;font-size:8px}.card-bottom span{display:block;margin-top:5px}.physics-link{gap:10px;padding:16px 13px}.physics-symbol{font-size:23px}.physics-link strong{font-size:10px;line-height:1.8;display:block}.physics-link p{font-size:9px;line-height:1.7}.how-grid{grid-template-columns:1fr;gap:23px}.how-grid article{padding-left:18px}.how-grid h3{font-size:14px;display:inline-block;margin-left:15px}.how-grid p{max-width:none;font-size:11px}.scope-note{font-size:9px;line-height:1.9}.footer{gap:20px}.footer>p{width:100%;order:3;font-size:9px}.footer>div{margin-left:auto;gap:12px;font-size:8px}.lesson-title-row{align-items:flex-start;gap:10px}.lesson-title-row h1{font-size:25px}.live-pill{display:none}.lesson-summary{font-size:11px}.goal{font-size:10px;gap:9px;align-items:flex-start}.goal>span{font-size:8px}.lab-heading{padding:13px 12px;font-size:7px;letter-spacing:0}.scene-wrap{padding:10px 0 0;overflow:auto}#scene{min-width:500px}.scene-wrap::after{content:'図が収まらないときは横にスクロールできます';display:block;font-size:8px;color:var(--muted);padding:6px 10px}.metrics{padding:12px 6px;gap:2px}.metrics span{font-size:8px;padding:0 3px}.metrics strong{font-size:17px}.metrics small{font-size:8px}.playback{padding:13px 12px}.playback-main{gap:7px}.play-button{padding:10px;min-width:61px}.playback-settings{font-size:8px}.playback-settings>div{gap:7px}.controls-panel{padding:18px 15px}.controls-panel #controls{display:block}.control{margin:20px 0 8px}.control label{font-size:11px}.control output{font-size:20px}.control select{font-size:12px;padding:11px 7px}.range-labels{font-size:9px}.model-note{font-size:9px;padding:14px}.model-note strong{display:block;margin:0 0 4px}.formula-grid{grid-template-columns:1fr}.formula-grid strong{font-size:19px}.formula-grid article{padding:17px}.formula-grid p{font-size:11px}.steps p{font-size:11px;line-height:2}.steps h3{font-size:13px}.practice .section-heading{flex-direction:row;align-items:center}.practice .section-heading h2{font-size:18px}#lesson-score{font-size:9px}.difficulty{gap:6px}.difficulty button{flex:1;padding:10px 12px}.question-card{padding:19px 16px}.answer-options{grid-template-columns:1fr;gap:9px}.answer-option{font-size:12px;padding:13px 12px}.answer-actions{gap:14px}.answer-actions .button{width:100%}legend{font-size:14px}.question-footer>span{font-size:8px;line-height:1.8}.question-footer .text-button{white-space:nowrap;font-size:9px}.lesson-bottom{flex-direction:column;align-items:stretch;gap:10px}.lesson-bottom .button{font-size:11px}.lesson-card{gap:15px;align-items:flex-start}.lesson-order{font-size:23px;margin-top:20px}.lesson-card h2{font-size:18px}.lesson-arrow{font-size:20px;margin-top:30px}.subject-intro{padding-top:25px}.subject-intro h1{font-size:32px}.review-banner{font-size:10px}.review-banner button{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* Curriculum explorer and extended learning activities. */
.curriculum-banner{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:22px 27px;margin-top:22px;border:1px solid #d4dfca;border-radius:9px;background:#f0f3e6}.curriculum-banner strong{font-size:15px;font-weight:600}.curriculum-banner p{font-size:11px;color:var(--muted);line-height:1.9;margin-top:7px}.curriculum-banner .button{white-space:nowrap}.lesson-course-chips{display:flex;flex-wrap:wrap;gap:6px;margin:13px 0 0}.course-chip,.lesson-meta>span{font-size:9px;padding:5px 8px;line-height:1.6;border-radius:4px;background:#edf1e5;color:#5c7454}.course-chip:hover{background:#dfe9d4}.lesson-meta{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-top:15px}.lesson-meta .activity-badge{background:#f7eddb;color:#8b6b3f}.lesson-meta .lesson-progress{background:none;color:var(--muted);margin-left:auto}.lesson-explorer{padding-top:28px}.explorer-controls{display:flex;gap:18px;align-items:flex-end;padding:22px 24px;border:1px solid var(--line);background:#f0f3e8;border-radius:9px}.explorer-controls label{display:flex;flex-direction:column;gap:9px;font-size:10px;font-weight:500;min-width:150px}.explorer-controls .search-label{flex:1}.explorer-controls input,.explorer-controls select{width:100%;padding:11px 13px;border:1px solid #cddac5;border-radius:5px;background:#fffef9;color:var(--ink);font-size:12px;min-width:0}.explorer-controls input::placeholder{color:#92a08c}.explorer-controls .button{min-height:41px}.result-count{font-size:10px;line-height:1.8;color:var(--muted);margin:15px 0}.empty-search{padding:50px 25px;text-align:center;background:#f3f5ed;font-size:12px;color:var(--muted);border-radius:8px}.empty-search .button{margin-top:20px}.curriculum-intro{padding:40px 0 35px}.curriculum-intro>.eyebrow{margin-top:33px}.curriculum-intro h1{font-family:'Noto Serif JP',serif;font-size:36px;font-weight:600;margin:18px 0 20px;line-height:1.65}.curriculum-intro>p:not(.eyebrow){font-size:13px;color:var(--muted);line-height:2;max-width:850px}.curriculum-totals{display:flex;gap:45px;margin:28px 0;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.curriculum-totals>span{font-size:10px;color:var(--muted)}.curriculum-totals strong{font-family:Georgia,serif;font-weight:400;font-size:35px;color:var(--green);margin-right:9px}.curriculum-intro .curriculum-method{font-size:11px!important}.source-link{display:inline-block;font-size:10px;color:var(--green);margin-top:15px;text-decoration:underline;text-underline-offset:4px;line-height:1.9}.curriculum-explorer{padding-bottom:50px}.coverage-subject{border:1px solid var(--line);border-radius:9px;background:#fffef9;margin-top:15px;overflow:hidden}.coverage-subject>summary{display:flex;align-items:center;gap:17px;cursor:pointer;padding:22px 26px;list-style:none;font-size:20px;font-family:'Noto Serif JP',serif;font-weight:600}.coverage-subject>summary::-webkit-details-marker{display:none}.coverage-subject>summary small{display:block;font-family:'Noto Sans JP',sans-serif;font-size:9px;font-weight:400;color:var(--muted);margin-top:7px}.expand-sign{margin-left:auto;font-family:'Noto Sans JP',sans-serif;color:#89997f;font-size:20px}.coverage-subject[open] .expand-sign{transform:rotate(45deg)}.coverage-courses{padding:0 26px 26px}.coverage-course h2{font-size:16px;font-weight:600;border-bottom:2px solid #c9d8be;padding:18px 0 14px;color:var(--green)}.coverage-row{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.coverage-row:last-child{border-bottom:0}.coverage-row h3{font-size:13px;font-weight:600;line-height:1.8}.coverage-row p{font-size:11px;line-height:1.95;color:var(--muted);margin-top:8px}.coverage-row .coverage-note{font-size:10px;color:#8c7d61}.coverage-links{display:flex;flex-direction:column;gap:8px}.coverage-links a{display:flex;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:4px;background:#edf2e6;font-size:11px;line-height:1.8;color:var(--green)}.coverage-links a:hover{background:#e0ebd6}.activity-section{padding-top:37px}.activity-section .section-heading h2{font-size:21px}.activity-label{font-size:9px;background:#f5ebd6;color:#8e6c3c;padding:6px 9px;border-radius:4px;white-space:nowrap}.activity-card{padding:25px 27px;border:1px solid #dfd8c5;border-radius:9px;background:#fffdf5}.activity-card>h3{font-size:16px;line-height:1.8}.activity-prompt{font-size:12px;line-height:2.1;margin-top:15px;white-space:pre-wrap}.activity-response-label{display:block;font-size:11px;font-weight:500;margin-top:23px}.activity-response-label textarea{display:block;width:100%;resize:vertical;min-height:140px;max-height:700px;padding:15px;margin-top:10px;border:1px solid #d6ddc9;border-radius:6px;background:#fffefb;color:var(--ink);font:inherit;font-size:13px;line-height:1.9}.activity-response-label textarea::placeholder{color:#96a18d}.activity-save-row{display:flex;justify-content:space-between;gap:15px;font-size:9px;color:var(--muted);margin:10px 0}.activity-checklist{margin-top:24px;border-top:1px solid var(--line);padding-top:20px}.activity-checklist legend{font-size:12px;font-weight:600;line-height:1.8}.activity-checklist label{display:flex;gap:11px;align-items:flex-start;padding:9px 0;font-size:11px;line-height:1.9}.activity-checklist input{margin-top:5px;flex-shrink:0;width:15px;height:15px}.self-check-note{font-size:10px;line-height:1.9;color:var(--muted);margin-top:10px}.activity-example{border-top:1px solid #e4ddcb;margin-top:22px;padding-top:18px;font-size:11px}.activity-example summary{cursor:pointer;color:var(--green);font-weight:500}.activity-example p{font-size:12px;line-height:2.1;white-space:pre-wrap;margin-top:17px}.audio-practice{border:1px solid #d7dfcb;border-radius:6px;padding:20px;background:#eef3e8;margin-top:20px}.audio-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.audio-controls label{display:flex;gap:8px;align-items:center;font-size:10px;margin-left:auto}.audio-controls select{font-size:10px;border:1px solid #c7d4bd;background:#fffef8;padding:7px;border-radius:4px}.audio-practice>p{font-size:10px;color:var(--muted);line-height:1.9;margin-top:14px}.audio-transcript{font-size:11px;margin-top:16px;border-top:1px solid #d8e2cf;padding-top:14px}.audio-transcript summary{cursor:pointer;color:var(--green)}.audio-transcript p{font-size:14px;line-height:1.95;margin-top:14px;white-space:pre-wrap}.sidebar-curriculum-link{display:block;font-size:10px;line-height:1.8;padding:11px 9px;background:#edf2e5;border-radius:5px;margin-bottom:20px;color:var(--green)}
@media(max-width:760px){.curriculum-banner{padding:21px;gap:18px}.curriculum-banner strong{font-size:13px}.curriculum-banner p{font-size:10px}.explorer-controls{flex-wrap:wrap;padding:18px;gap:14px}.explorer-controls label{min-width:130px}.explorer-controls .button{flex:1}.curriculum-intro h1{font-size:29px}.curriculum-totals{gap:30px}.curriculum-totals strong{font-size:29px}.curriculum-totals>span{font-size:9px}.coverage-subject>summary{padding:19px 21px;font-size:18px}.coverage-courses{padding:0 21px 21px}.coverage-row{gap:20px}.coverage-links a{font-size:10px}.activity-card{padding:22px}.lesson-meta .lesson-progress{margin-left:0}}
@media(max-width:480px){.header nav{gap:10px}.header nav a{font-size:9px}.curriculum-banner{display:block;padding:20px}.curriculum-banner .button{margin-top:16px;width:100%}.curriculum-banner strong{font-size:14px;line-height:1.8}.curriculum-banner p{font-size:11px}.explorer-controls{display:block;padding:18px}.explorer-controls label{margin-bottom:15px;font-size:11px}.explorer-controls input,.explorer-controls select{font-size:13px}.explorer-controls .button{width:100%;font-size:11px}.lesson-meta{gap:5px}.lesson-meta>span{font-size:8px;padding:4px 6px}.lesson-course-chips{gap:5px}.course-chip{font-size:8px}.curriculum-intro{padding:28px 0}.curriculum-intro h1{font-size:27px}.curriculum-intro>p:not(.eyebrow){font-size:12px}.curriculum-totals{display:grid;grid-template-columns:1fr 1fr;gap:15px 30px;padding:20px 0}.curriculum-totals strong{font-size:32px}.curriculum-totals>span{font-size:10px}.coverage-subject>summary{padding:18px 16px;gap:12px;font-size:18px}.coverage-courses{padding:0 16px 18px}.coverage-course h2{font-size:15px}.coverage-row{grid-template-columns:1fr;gap:15px;padding:20px 0}.coverage-links a{font-size:11px;padding:10px 12px}.coverage-row p{font-size:11px}.activity-section .section-heading{flex-direction:row;align-items:center}.activity-section .section-heading h2{font-size:18px}.activity-label{font-size:8px}.activity-card{padding:20px 16px}.activity-card>h3{font-size:15px}.activity-prompt{font-size:12px}.activity-response-label textarea{font-size:14px;padding:12px}.activity-save-row{font-size:8px;gap:10px;line-height:1.8}.activity-checklist label{font-size:12px}.activity-example p{font-size:12px}.audio-practice{padding:16px 12px}.audio-controls{gap:9px}.audio-controls .button{font-size:10px;padding:10px 12px}.audio-controls label{width:100%;margin:4px 0 0;justify-content:space-between}.audio-transcript p{font-size:14px}}
.lesson-jumps{display:flex;gap:8px;flex-wrap:wrap;margin:-5px 0 22px}.lesson-jumps a{font-size:10px;color:var(--green);padding:8px 10px;border:1px solid #d8e3cf;border-radius:5px;background:#f2f5eb}.lesson-jumps a:hover{background:#e4eddc}@media(max-width:480px){.lesson-jumps{gap:6px;margin-bottom:18px}.lesson-jumps a{font-size:9px;padding:8px}}
/* Worked solutions reveal the reasoning without changing answer records. */
.worked-solution{margin-top:25px;padding:24px;border:1px solid #cbdcc1;border-radius:9px;background:#f7f9f0}.worked-solution[hidden]{display:none}.solution-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.solution-heading h3{font-family:'Noto Serif JP',serif;font-size:21px;font-weight:600;line-height:1.7;margin-top:8px}.solution-heading .text-button{white-space:nowrap;font-size:11px;padding:7px}.solution-steps{list-style:none;display:flex;gap:9px;padding:0;margin:23px 0}.solution-steps li{flex:1;min-width:0}.solution-steps button{display:flex;align-items:center;gap:8px;width:100%;height:100%;padding:11px 9px;border:1px solid #d5e0cb;border-radius:6px;background:#fffef9;color:#74866b;text-align:left;font:inherit;font-size:11px;line-height:1.8;cursor:pointer}.solution-steps button>span{display:flex;align-items:center;justify-content:center;width:22px;height:22px;flex-shrink:0;border:1px solid #d2ddc7;border-radius:50%;font-size:10px}.solution-steps button[aria-current=step]{border-color:#43826b;background:#e2eddc;color:#175b4b;font-weight:600}.solution-steps button[aria-current=step]>span{background:#246a52;border-color:#246a52;color:white}.solution-steps button.is-read{color:#3b7056}.solution-reading{min-width:0}.solution-position{font-size:10px;color:#6b7e61;line-height:1.8;margin-bottom:7px}.solution-reading h4{font-size:18px;font-weight:600;line-height:1.8}.solution-reading>p:not(.solution-position){font-size:13px;line-height:2;white-space:pre-wrap;margin-top:10px}.solution-figure{margin:20px 0 0;border:1px solid #dce5d3;border-radius:8px;background:#fffef9;overflow:hidden}.solution-svg{display:block;max-width:100%;height:auto;margin:0 auto}.solution-figure figcaption{font-size:11px;line-height:1.9;padding:0 18px 16px;color:#6e7b65;white-space:pre-wrap}.solution-figure figcaption:empty{display:none}.solution-transcript{margin-top:14px;font-size:11px;line-height:1.9;color:#647a5b}.solution-transcript summary{cursor:pointer}.solution-transcript ul{padding-left:20px;margin-top:12px}.solution-transcript li{margin-top:9px;overflow-wrap:anywhere}.solution-nav{display:flex;justify-content:space-between;gap:15px;margin-top:24px}.solution-nav .button{font-size:11px}.solution-nav button:disabled{opacity:.45;cursor:default}.solution-record-note{font-size:10px;line-height:1.9;color:#7a866f;margin-top:18px}.solution-answer{background:#e4efdc;padding:18px;border-radius:6px;margin-top:23px}.solution-answer span{display:block;font-size:10px;color:#5e7a51;margin-bottom:7px}.solution-answer strong{font-size:16px;line-height:1.9;font-weight:600;overflow-wrap:anywhere}.solution-pitfall,.solution-check{margin-top:20px;border-left:3px solid #c8a46c;padding-left:15px}.solution-check{border-color:#8baf89}.solution-pitfall h5,.solution-check h5{font-size:12px;line-height:1.8}.solution-pitfall p,.solution-check p{font-size:12px;line-height:2;margin-top:6px;white-space:pre-wrap}.solution-reading:focus-visible{outline:2px solid #bc8848;outline-offset:5px}.answer-actions{flex-wrap:wrap}.question-dots{flex-wrap:wrap}.solution-reading p,.solution-steps button{overflow-wrap:anywhere}
@media(max-width:760px){.worked-solution{padding:20px}.solution-steps{gap:6px}.solution-steps button{font-size:10px;padding:10px 8px}}
@media(max-width:480px){.worked-solution{margin-left:-9px;margin-right:-9px;padding:15px 10px}.solution-heading{padding:0 4px}.solution-heading h3{font-size:18px}.solution-heading .eyebrow{font-size:7px}.solution-heading .text-button{font-size:10px}.solution-steps{gap:5px;flex-wrap:wrap;margin:18px 0}.solution-steps li{flex:1 1 28%}.solution-steps button{display:block;padding:8px 6px;font-size:10px}.solution-steps button>span{margin-bottom:5px;width:20px;height:20px}.solution-reading h4{font-size:16px}.solution-reading>p:not(.solution-position){font-size:12px}.solution-figure{margin-top:17px}.solution-figure figcaption{font-size:10px;padding:0 14px 13px}.solution-transcript{font-size:10px}.solution-answer{padding:14px}.solution-answer strong{font-size:14px}.solution-nav{gap:7px}.solution-nav .button{padding:11px 10px;font-size:10px}.solution-record-note{font-size:9px}.solution-pitfall,.solution-check{padding-left:12px}.solution-pitfall p,.solution-check p{font-size:11px}}
.static-diagram-note{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;line-height:1.9}.static-diagram-note button{white-space:nowrap;font-size:11px}.solution-reading h4:focus-visible{outline:2px solid #c7985c;outline-offset:5px}@media(max-width:480px){.static-diagram-note{padding:13px;display:block;font-size:10px}.static-diagram-note button{margin-top:10px;font-size:10px}}

.progress-breakdown{font-size:12px;line-height:1.7;color:#607264}

.subject-icon-svg{display:block;width:1em;height:1em;flex:none}.subject-symbol .subject-icon-svg{width:28px;height:28px}.large-symbol .subject-icon-svg{width:72px;height:72px}.sidebar summary>span .subject-icon-svg{width:18px;height:18px}.subject-symbol{display:inline-flex;align-items:center;justify-content:center}