@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{color-scheme:light;--ink:#152238;--muted:#617086;--line:#dce3eb;--bg:#f4f7fa;--navy:#111d32;--accent:#087a6d;--mint:#5ee1cb;--mint-pale:#e7f7f2;--plus:#087867;--minus:#b84c37;--radius:16px;font-family:'Manrope','Noto Sans JP',sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.7}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button,a,input,select,summary:focus-visible{outline:3px solid #168fa8;outline-offset:4px}button{color:inherit}a{color:var(--accent)}button svg{width:20px;height:20px;flex-shrink:0}h1,h2,h3,p{margin:0}h1{font-size:clamp(24px,2.6vw,34px);line-height:1.5;letter-spacing:-.03em}h2{font-size:21px;line-height:1.5}h3{font-size:17px}small{font-size:13px}.topbar{height:92px;background:var(--navy);color:white;display:flex;justify-content:space-between;align-items:center;padding:0 42px}.brand{display:flex;align-items:center;gap:15px;text-decoration:none;color:inherit;font-size:18px;line-height:1.3;letter-spacing:.06em}.brand b{color:var(--mint)}.brand small{display:block;font-size:12px;letter-spacing:.12em;margin-top:6px;color:#b6c2d3}.brand-mark{border:1px solid #658576;width:48px;height:48px;display:grid;place-items:center;font-size:15px;font-weight:800;border-radius:50%;letter-spacing:0}.header-note{font-size:13px;color:#adbed0;letter-spacing:.1em}.shell{max-width:1580px;margin:auto;display:grid;grid-template-columns:282px minmax(0,1fr);min-height:calc(100vh - 92px)}.lesson-rail{padding:30px 20px;border-right:1px solid var(--line);background:#fff}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.15em;color:var(--muted)}.rail-heading{display:flex;justify-content:space-between;align-items:center;margin:0 12px 20px}.rail-heading strong{font-size:17px}.count{font-size:12px;background:var(--bg);padding:3px 8px;border-radius:5px;color:var(--muted)}.lesson-list{display:flex;flex-direction:column;gap:6px}.lesson-btn{border:1px solid transparent;background:none;padding:15px 12px;border-radius:10px;display:flex;gap:12px;text-align:left;width:100%;line-height:1.5;align-items:flex-start}.lesson-btn:hover{background:#f4f7fa}.lesson-btn.active{background:var(--mint-pale);border-color:#b9e8db}.lesson-num{font-size:13px;font-weight:700;color:#8695a8;padding-top:2px}.lesson-btn.active .lesson-num{color:var(--accent)}.lesson-btn strong{font-size:14px;display:block}.lesson-btn small{display:block;color:var(--muted);font-size:12px;margin-top:5px}.rail-foot{margin:25px 12px 0;padding-top:20px;border-top:1px solid var(--line);font-size:12px;line-height:1.8;color:var(--muted)}.rail-foot a{display:block;margin-top:8px}.workspace{padding:34px 42px 50px;min-width:0;max-width:1150px;width:100%;margin:0 auto}.lesson-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:24px}.lesson-head .eyebrow{color:var(--accent);margin-bottom:9px}.subtitle{color:var(--muted);font-size:14px;margin-top:6px}.badge{display:inline-block;border:1px solid var(--line);border-radius:5px;padding:3px 9px;font-size:12px;font-weight:600;white-space:nowrap}.head-badges{display:flex;gap:8px;padding-top:4px;flex-wrap:wrap;justify-content:flex-end}.player{background:var(--navy);color:white;border-radius:var(--radius);padding:23px 28px;position:relative;overflow:hidden}.player-top{display:flex;justify-content:space-between;font-size:12px;color:#b6c7d9;letter-spacing:.03em}.audio-label{display:flex;align-items:center;gap:8px}.audio-label svg{width:16px;height:16px}.player-center{display:flex;gap:25px;align-items:center;padding:22px 0 20px}.play-main{width:58px;height:58px;background:var(--mint);border:0;border-radius:50%;display:grid;place-items:center;color:var(--navy);flex-shrink:0}.play-main svg{width:24px;height:24px}.wave-area{flex:1;min-width:0}.wave{height:47px;display:flex;align-items:center;gap:4px;overflow:hidden}.wave i{display:block;flex:1;min-width:2px;border-radius:2px;background:#33465c;height:var(--h)}.wave i.done{background:var(--mint)}.wave.running i{animation:wave 1s ease-in-out infinite alternate;animation-delay:var(--d)}@keyframes wave{to{transform:scaleY(.45)}}.time-row{display:flex;justify-content:space-between;color:#b4c3d5;font-size:12px;margin-top:7px}.transport{display:flex;gap:8px}.icon-btn{border:1px solid #415065;background:transparent;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:inherit}.player-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:18px;border-top:1px solid #304057}.speed{display:flex;gap:14px;align-items:center;flex:1}.speed label{font-size:12px;color:#bac8d8;white-space:nowrap}.speed output{font-size:20px;font-weight:800;color:var(--mint);white-space:nowrap;min-width:85px}.speed output small{font-size:11px;margin-left:4px;letter-spacing:.06em;color:#bdcbdc;font-weight:500}input[type=range]{accent-color:var(--mint);min-width:60px;max-width:210px;width:100%;cursor:pointer}.repeat-label{display:flex;gap:7px;align-items:center;font-size:13px;white-space:nowrap}.repeat-label input{accent-color:var(--mint);width:16px;height:16px}.player-note{font-size:12px;color:var(--muted);margin:9px 2px}.audio-options{margin:13px 0 22px;color:var(--muted);font-size:13px}.audio-options summary{cursor:pointer;width:fit-content}.audio-settings{background:white;border:1px solid var(--line);padding:16px;margin-top:10px;border-radius:10px;display:flex;gap:13px;flex-wrap:wrap;align-items:center}.audio-settings label{display:flex;align-items:center;gap:10px}.audio-settings select{max-width:100%;font-size:14px;padding:8px;border:1px solid var(--line);background:white;border-radius:6px}.audio-settings p{flex-basis:100%;font-size:12px}.tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line);margin-top:20px;gap:8px}.tab{display:flex;align-items:center;justify-content:center;gap:8px;border:0;border-bottom:3px solid transparent;padding:15px 7px;background:transparent;font-weight:700;font-size:14px;color:var(--muted);white-space:nowrap}.tab span{font-size:11px;color:#8190a2}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.tab.active span{color:var(--accent)}.panel{padding-top:25px;min-height:300px}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:22px}.section-head p{font-size:14px;color:var(--muted);margin-top:5px}.mini-label{font-size:12px;letter-spacing:.07em;color:var(--accent);font-weight:700}.question{background:white;border:1px solid var(--line);border-radius:12px;padding:24px;margin:0 0 18px}.question-title{display:flex;align-items:flex-start;gap:12px;margin-bottom:17px}.q-num{font-size:12px;font-weight:800;padding-top:3px;letter-spacing:.05em;color:var(--accent);white-space:nowrap}.question h3{font-family:'Manrope','Noto Sans JP',sans-serif;font-size:18px;font-weight:700;line-height:1.5}.options{display:grid;grid-template-columns:1fr 1fr;gap:10px;border:0;padding:0;margin:0}.option{display:flex;align-items:flex-start;gap:11px;border:1px solid var(--line);background:white;border-radius:8px;padding:13px 14px;cursor:pointer;line-height:1.55;font-size:16px;position:relative}.option:hover{background:#f8fafb}.option input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer;margin:0}.option:has(input:focus-visible){outline:3px solid #168fa8;outline-offset:2px}.letter{border:1px solid #cbd6e1;border-radius:50%;width:24px;height:24px;flex-shrink:0;display:grid;place-items:center;font-size:12px;margin-top:1px;color:var(--muted)}.option.selected{border-color:var(--accent);background:#f1faf7}.option.selected .letter{background:var(--accent);border-color:var(--accent);color:white}.option.correct{border-color:var(--plus);background:#eef9f4}.option.wrong{border-color:#d19688;background:#fff4f0}.option .outcome{font-size:12px;font-weight:700;display:block;margin-top:5px}.feedback{padding:17px 18px;background:#f0f7f5;border-radius:9px;font-size:14px;margin-top:17px}.feedback.negative{background:#fff5ef}.feedback strong{display:block;margin-bottom:5px;font-size:15px}.evidence-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.text-btn{border:0;background:transparent;color:var(--accent);padding:2px 0;text-decoration:underline;text-underline-offset:4px;font-size:13px}.primary{background:var(--accent);color:white;border:1px solid var(--accent);border-radius:8px;padding:12px 23px;font-weight:700;font-size:14px;display:inline-flex;gap:9px;align-items:center;justify-content:center}.primary:hover{background:#066558}.secondary{background:white;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:9px 16px;font-size:14px;display:inline-flex;gap:8px;align-items:center;justify-content:center}.secondary:hover{background:#f0f5f7}.actions{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}.answered-note{font-size:13px;color:var(--muted)}.result-banner{padding:20px 23px;background:var(--mint-pale);border:1px solid #c0e8dc;border-radius:12px;margin-bottom:18px;display:flex;justify-content:space-between;align-items:center;gap:15px}.score{font-size:31px;font-weight:800;line-height:1.3;color:var(--accent)}.score small{font-size:15px;margin-left:4px;color:var(--muted)}.result-banner p{font-size:13px;color:var(--muted)}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:10px;margin:0 0 20px}table{border-collapse:collapse;width:100%;text-align:left;font-size:14px}th,td{padding:12px 16px;border-bottom:1px solid var(--line)}th{background:#edf3f6;font-size:13px;white-space:nowrap}tr:last-child td{border-bottom:0}.unit{background:white;border:1px solid var(--line);border-radius:12px;margin-bottom:15px;padding:22px 24px;scroll-margin-top:20px}.unit.playing{border-color:var(--accent);box-shadow:0 0 0 2px #c6e9e0}.unit-top{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px}.unit-id{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px}.unit-id strong{font-size:13px;color:var(--ink)}.sentence-play{border:0;background:#eff5f8;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;color:var(--accent)}.sentence-play svg{width:14px;height:14px}.chunks{display:flex;gap:7px 13px;flex-wrap:wrap;margin:0 0 17px}.chunk{font-size:20px;line-height:1.55;padding:3px 0 8px;border-bottom:2px solid #dceae6}.chunk:after{content:' /';color:#93b1a9}.chunk:last-child:after{content:''}.chunk .chunk-ja{display:block;color:#56766f;font-size:13px;margin-top:7px;font-weight:400}.meaning{border-top:1px solid var(--line);margin-top:14px;padding-top:15px}.meaning p{font-size:14px;margin-bottom:11px;line-height:1.9}.meaning details{color:var(--muted);font-size:13px}.meaning summary{cursor:pointer}.meaning details p{margin-top:10px}.meaning-main{display:flex;gap:10px;align-items:flex-start}.polarity{display:inline-block;border-radius:4px;padding:2px 8px;font-size:12px;font-weight:700;white-space:nowrap;background:#eef2f6;color:#607187}.polarity.plus{color:var(--plus);background:#e1f5ed}.polarity.minus{color:var(--minus);background:#ffede5}.polarity.mixed{color:#795191;background:#f1eaf7}.script-actions{display:flex;gap:10px;flex-wrap:wrap}.sound-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.sound-card{background:white;border:1px solid var(--line);border-radius:12px;padding:24px}.sound-card .phrase{font-size:26px;line-height:1.4;margin:17px 0;font-weight:700;overflow-wrap:anywhere}.sound-card p{font-size:14px;margin-top:11px;color:var(--muted)}.sound-card .secondary{margin-top:18px}.practice-tip{padding:18px 22px;background:#eaf1f7;border-radius:10px;font-size:14px;margin:22px 0}.practice-tip strong{display:block;color:var(--ink);margin-bottom:6px}.logic-map{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:20px 0}.logic-item{background:white;border:1px solid var(--line);border-left:3px solid #778aa0;border-radius:8px;padding:16px}.logic-item.plus{border-left-color:var(--plus)}.logic-item.minus{border-left-color:var(--minus)}.logic-item p{font-size:14px;margin-top:8px}.polarity-options{display:flex;gap:8px;flex-wrap:wrap}.polarity-options .secondary{padding:7px 13px}.polarity-options .picked{border-color:var(--accent);background:var(--mint-pale)}.polarity-practice{border-top:1px solid var(--line);padding-top:20px;margin-top:25px}.polarity-practice>p{font-size:14px;margin:7px 0 17px;color:var(--muted)}.abstract-quote{font-size:18px;line-height:1.6;margin-bottom:17px}.footer{margin-top:36px;border-top:1px solid var(--line);padding-top:21px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer a{color:var(--muted)}.mobile-lessons{display:none}.loading{padding:60px;text-align:center;color:var(--muted)}.error-box{background:#fff1e9;padding:20px;border-radius:10px;font-size:14px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);padding:13px 23px;border-radius:8px;background:#172b40;color:#fff;box-shadow:0 5px 30px #14233430;font-size:14px;z-index:10;display:none}#toast.visible{display:block}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.source-details{font-size:12px;margin-top:25px;color:var(--muted)}.source-details summary{cursor:pointer}.source-details p{margin:9px 0}.source-details a{display:inline-block;margin-right:12px}
@media(min-width:1440px){.workspace{padding-top:42px}.lesson-rail{padding-top:39px}.question{padding:26px 28px}}
@media(max-width:1100px){.shell{grid-template-columns:240px minmax(0,1fr)}.workspace{padding:28px 26px}.lesson-rail{padding:25px 12px}.options{grid-template-columns:1fr}.head-badges{max-width:130px}.player{padding:21px}.player-bottom{gap:12px}.speed{gap:9px}.repeat-label{font-size:12px}.sound-grid{grid-template-columns:1fr}.tab{font-size:13px;gap:5px}}
@media(max-width:760px){.topbar{height:78px;padding:0 20px}.brand{font-size:15px;gap:11px}.brand-mark{width:40px;height:40px;font-size:13px}.header-note{display:none}.shell{display:block}.lesson-rail{display:none}.workspace{padding:19px 18px 35px}.mobile-lessons{display:flex;align-items:center;gap:12px;font-size:13px;margin-bottom:25px}.mobile-lessons label{color:var(--muted);white-space:nowrap}.mobile-lessons select{width:100%;min-width:0;background:white;border:1px solid var(--line);padding:10px;border-radius:7px;font-size:14px}.lesson-head{gap:10px;margin-bottom:20px}.head-badges{max-width:100px;gap:5px}.head-badges .badge{font-size:11px;padding:2px 5px}.lesson-head h1{font-size:24px}.lesson-head .eyebrow{font-size:11px}.subtitle{font-size:13px}.player{padding:20px 19px;border-radius:13px}.player-center{gap:16px;padding:20px 0}.play-main{width:50px;height:50px}.wave{gap:3px;height:40px}.transport{flex-direction:column;gap:4px}.icon-btn{width:29px;height:29px}.icon-btn svg{width:16px}.player-bottom{flex-wrap:wrap;gap:14px}.speed{flex-basis:100%}.speed input{max-width:none}.repeat-label{margin-left:auto}.tabs{gap:0;margin-top:18px}.tab{font-size:12px;padding:13px 3px;gap:0;flex-direction:column;white-space:normal}.tab span{font-size:10px;margin-bottom:2px}.panel{padding-top:21px}.question{padding:19px 16px}.question h3{font-size:17px}.question-title{gap:9px}.option{font-size:16px;padding:12px 11px}.section-head{gap:12px}.section-head h2{font-size:19px}.section-head p{font-size:13px}.section-head .secondary{font-size:12px;padding:8px 10px;white-space:nowrap}.unit{padding:19px 17px}.chunk{font-size:20px}.sound-card{padding:20px}.logic-map{grid-template-columns:1fr}.result-banner{padding:18px}.score{font-size:28px}.actions .primary{flex:1}.audio-settings label{display:block;max-width:100%}.audio-settings select{display:block;margin-top:6px;width:100%}.audio-settings{display:block}.audio-settings .secondary{margin:12px 0}.audio-settings p{font-size:12px}.script-actions{gap:6px}.footer{font-size:11px}.polarity-options .secondary{font-size:13px}.badge{font-size:11px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}@media print{.topbar,.lesson-rail,.player,.audio-options,.tabs,.actions,.mobile-lessons,.footer{display:none}.shell{display:block}.workspace{padding:0}.question,.unit{break-inside:avoid}}
.lesson-rail{position:sticky;top:0;max-height:100vh;overflow-y:auto;align-self:start;scrollbar-width:thin}.course-label{padding:20px 12px 9px;font-size:13px;font-weight:700;color:var(--ink);line-height:1.5}.course-label:first-child{padding-top:0}.course-label span{display:block;font-size:10px;letter-spacing:.13em;color:var(--accent);margin-bottom:4px}.lesson-btn strong{overflow-wrap:anywhere}.accent-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:3px 0 8px;font-size:13px;color:var(--muted)}.accent-buttons,.sound-mode{display:inline-flex;border:1px solid var(--line);background:white;border-radius:9px;padding:3px;gap:3px}.accent-buttons button,.sound-mode button{background:transparent;border:0;border-radius:6px;padding:8px 15px;font-size:13px;color:var(--muted)}.accent-buttons button b{font-size:11px;margin-left:7px;letter-spacing:.05em}.accent-buttons button.selected,.sound-mode button.selected{background:var(--navy);color:white}.voice-availability{color:var(--muted);font-size:12px;line-height:1.6;margin:0 0 14px;overflow-wrap:anywhere}.voice-availability.missing{padding:11px 14px;background:#fff1e8;border-radius:8px;color:#965226}.sound-controls{display:flex;justify-content:space-between;align-items:center;gap:13px;flex-wrap:wrap;margin:0 0 22px}.sound-controls select{padding:10px 12px;font-size:13px;border:1px solid var(--line);border-radius:7px;background:white;color:var(--ink);max-width:100%}.sound-card h3{font-size:19px;margin:15px 0 8px;line-height:1.6}.accent-compare{display:flex;align-items:center;gap:15px;margin-top:18px;border-top:1px solid var(--line);padding-top:13px;font-size:12px;color:var(--muted)}.pattern-example{margin-top:20px;padding:17px;background:#f4f8fa;border-radius:9px}.pattern-example>strong{font-size:22px;line-height:1.4;font-weight:600;display:block;overflow-wrap:anywhere}.pattern-example p{margin-top:9px}.pattern-example .secondary{margin-top:12px;background:#fff;padding:8px 13px}.accent-detail{font-size:13px;margin-top:19px;color:var(--muted)}.accent-detail summary{cursor:pointer;color:var(--accent)}.accent-detail p{font-size:13px}.pattern-caution{padding-top:12px;border-top:1px solid var(--line)}.pattern-sources{margin-top:13px;display:flex;flex-wrap:wrap;gap:9px}.pattern-sources a{font-size:12px}.scene-panel{margin:0 0 24px;display:grid;grid-template-columns:minmax(190px,250px) minmax(0,1fr);background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.scene-crop{position:relative;overflow:hidden;width:100%;align-self:center;background:#edf4f5}.scene-crop img{position:absolute;width:300%;height:200%;max-width:none;display:block}.scene-panel figcaption{padding:25px 27px;align-self:center}.scene-panel h3{font-size:21px;margin:8px 0 12px;line-height:1.5}.scene-panel p{font-size:15px;line-height:1.85}.scene-panel small{display:block;margin-top:15px;color:var(--muted);font-size:12px;line-height:1.8}.challenge-note{font-size:13px;padding:14px 18px;background:#edf0f8;border-left:3px solid #727897;color:#536079;border-radius:6px;margin:-4px 0 22px}.source-details ul{padding-left:19px}.source-details li{margin:11px 0}.source-details li a{display:inline;margin:0}.source-details li span{display:inline}.scene-panel+.unit{margin-top:0}
@media(max-width:1100px){.scene-panel{grid-template-columns:190px minmax(0,1fr)}.scene-panel figcaption{padding:19px}.scene-panel h3{font-size:18px}.scene-panel p{font-size:14px}.scene-panel small{font-size:11px}.sound-mode button{font-size:12px;padding:9px 11px}}
@media(max-width:760px){.accent-toolbar{font-size:12px}.accent-buttons button{padding:8px 14px}.accent-buttons button b{margin-left:5px}.voice-availability{font-size:11px}.scene-panel{grid-template-columns:1fr}.scene-crop{max-height:330px;width:100%;aspect-ratio:1/1!important}.scene-panel figcaption{padding:20px 22px}.scene-panel small{font-size:12px}.scene-panel h3{font-size:20px}.sound-controls{display:block}.sound-mode{display:flex;width:100%}.sound-mode button{flex:1;font-size:13px;padding:11px 5px}.sound-controls select{margin-top:12px;width:100%}.accent-compare{gap:14px}.pattern-example>strong{font-size:20px}.sound-card h3{font-size:19px}}
@media print{.accent-toolbar,.voice-availability,.sound-controls{display:none}.scene-panel{break-inside:avoid}}
.catalog-controls{margin:0 8px 19px;display:grid;gap:8px}.catalog-controls>label{font-size:12px;font-weight:700;color:var(--muted)}.catalog-controls select,.catalog-controls input{width:100%;min-width:0;max-width:100%;background:#fff;border:1px solid var(--line);border-radius:7px;padding:10px 9px;font-size:13px;color:var(--ink)}.catalog-controls input::placeholder{font-size:11px;color:var(--muted)}.catalog-result{display:flex;align-items:center;justify-content:space-between;gap:7px;font-size:11px;color:var(--muted)}.catalog-result .text-btn{font-size:11px}.catalog-empty{font-size:13px;padding:14px;color:var(--muted)}.subject-badge{background:var(--mint-pale);color:var(--accent);border-color:#c4e9de}.head-badges{max-width:150px;flex-shrink:0}.head-badges .badge{white-space:normal}.reference-date{color:var(--accent);font-weight:700}.catalog-controls [hidden]{display:none}
@media(max-width:760px){.mobile-lessons{display:grid;grid-template-columns:1fr;gap:7px;margin-bottom:25px;padding-bottom:20px;border-bottom:1px solid var(--line)}.mobile-lessons>.catalog-controls{margin:0 0 5px;grid-template-columns:1fr 1fr;gap:8px}.mobile-lessons .catalog-controls>label:not(.sr-only){grid-column:1/-1}.mobile-lessons .catalog-result{grid-column:1/-1}.mobile-lessons .catalog-controls input,.mobile-lessons .catalog-controls select{font-size:16px;padding:9px 8px}.mobile-lessons .catalog-controls input::placeholder{font-size:11px}.mobile-lessons>label{font-size:12px}.mobile-lessons>select{font-size:16px}.head-badges{max-width:95px}.lesson-head>div:first-child{min-width:0}.head-badges .badge{font-size:10px}.scene-crop{max-height:none}}
@media(max-width:390px){.mobile-lessons>.catalog-controls{grid-template-columns:1fr}.head-badges{max-width:83px}}
@media print{.catalog-controls{display:none}}

.tabs{grid-template-columns:repeat(6,minmax(0,1fr))}.tab{font-size:14px;flex-direction:column;gap:3px}.reading-paper{background:white;border:1px solid var(--line);border-radius:12px;padding:30px;max-width:800px;margin:0 auto}.reading-paper>h3{font-family:Georgia,serif;font-size:25px;line-height:1.5;margin-bottom:25px}.reading-paragraph{margin-bottom:25px}.reading-paragraph>p{font-family:Georgia,serif;font-size:21px;line-height:1.9}.reading-paragraph .text-btn{font-size:13px;margin-top:5px}.reading-translation{border-top:1px solid var(--line);padding-top:20px;font-size:16px}.reading-translation summary{cursor:pointer;color:var(--accent)}.reading-translation p{margin:18px 0}.reading-paper p{overflow-wrap:break-word}@media(max-width:760px){.tabs{grid-template-columns:repeat(3,minmax(0,1fr))}.tab{font-size:14px;padding:12px 3px}.reading-paper{padding:22px 18px}.reading-paragraph>p{font-size:20px}}

/* Reading and argument study */
.reading-tools{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin:20px 0 14px;font-size:14px}.reading-tools label{display:flex;align-items:center;gap:8px}.reading-tools input{accent-color:var(--accent);width:18px;height:18px;flex-shrink:0}.reading-speaker{display:block;font:600 14px 'Noto Sans JP',sans-serif;color:var(--muted);margin-bottom:8px}.reading-translation small{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}.reader-caption{font-size:14px;color:var(--muted);line-height:1.85;margin:10px 0 18px}.signal-legend{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0}.signal-mark{border-radius:3px;padding:1px 3px;background:#e9eff5;color:#264d73;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.signal-legend .signal-mark,.signal-card>.signal-mark{font-size:14px;text-decoration:none;padding:4px 8px;display:inline-block}.signal-mark.contrast{background:#fce9df;color:#873b14}.signal-mark.reason{background:#e1f4ec;color:#165d42}.signal-mark.example{background:#eae6f6;color:#534080}.signal-mark.addition{background:#e0edf8;color:#1e5076}.signal-mark.general{background:#fff0c8;color:#775017}.signal-mark.assumption{background:#fbe2e8;color:#962646}.signal-mark.evidence{background:#dceff0;color:#185c65}.signal-mark.qualification{background:#efebf5;color:#63487d}.article-source{border:1px solid #bfd1e3;border-left:4px solid #315f91;border-radius:10px;background:#eef4fa;padding:22px 25px;margin-bottom:23px}.source-kicker{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#45637c;font-size:13px}.article-source h3{font-size:20px;margin:12px 0}.article-source blockquote{font-family:Georgia,serif;font-size:21px;line-height:1.6;margin:12px 0 16px;border-left:2px solid #9fb6cd;padding-left:15px}.article-source p{font-size:16px;margin:10px 0;line-height:1.9}.article-source .source-context{font-size:14px;color:#52677c}.article-source>a{font-size:14px;display:inline-block;margin-top:8px}.syntax-legend{padding:16px 20px;background:#edf3f7;border-radius:9px;margin-bottom:22px;font-size:14px}.syntax-legend summary{cursor:pointer;color:#294c71;font-weight:700}.syntax-legend p{margin-top:12px;line-height:1.9}.syntax-box{border:1px solid #d8e2eb;border-radius:8px;margin:14px 0 18px;background:#f8fafc;font-size:14px}.syntax-box summary{cursor:pointer;padding:13px 16px;font-weight:700;color:#365776}.skeleton{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 16px}.skeleton-part{background:white;border:1px solid #d4dfe9;display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:5px;max-width:100%;line-height:1.6}.skeleton-part b{flex-shrink:0;color:#296495}.skeleton-part.v b{color:#a44642}.skeleton-part.o b{color:#166e5e}.skeleton-part.c b{color:#785694}.skeleton-part span{overflow-wrap:anywhere}.syntax-grid{display:grid;grid-template-columns:140px minmax(0,1fr);margin:0 16px;border-top:1px solid #dce4eb}.syntax-grid dt,.syntax-grid dd{padding:9px 8px;border-bottom:1px solid #dce4eb;font-size:14px;line-height:1.7;overflow-wrap:anywhere;margin:0}.syntax-grid dt{font-weight:700;color:#4f6176}.syntax-grid dd{font-size:16px}.syntax-note{font-size:15px;padding:16px;line-height:1.9;color:#3f5268}.analysis-section{margin:30px 0}.analysis-section>h3,.analysis-title h3{font-size:20px;margin-bottom:15px}.background-card{background:#edf3fa;border-left:4px solid #54759c;border-radius:8px;padding:22px 25px}.background-card h3{font-size:20px;margin:8px 0 12px}.background-card p{font-size:16px;line-height:1.9}.background-card .text-btn{margin-top:12px}.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:17px 0}.concept-grid article{padding:20px;background:white;border:1px solid var(--line);border-top:3px solid #6a88a5;border-radius:8px}.concept-grid article:nth-child(2){border-top-color:#af785c}.concept-grid span{font-size:13px;color:var(--muted);font-weight:700}.concept-grid p{font-size:18px;line-height:1.7;margin-top:8px}.synthesis-card{padding:22px 25px;background:#e8f5f0;border-left:4px solid var(--accent);border-radius:8px}.synthesis-card h4,.synthesis-card h3{font-size:19px;margin:8px 0 12px}.synthesis-card>p{font-size:16px;line-height:1.9}.synthesis-card .reader-caption{font-size:14px}.dialectic-note{font-size:14px;padding:15px 18px;background:#f0eef6;border-radius:8px;color:#594c71}.dialectic-note summary{cursor:pointer;font-weight:700}.dialectic-note p{margin-top:12px;line-height:1.9}.paragraph-flow{list-style:none;margin:18px 0;padding:0}.paragraph-flow>li{display:grid;grid-template-columns:38px minmax(0,1fr);gap:13px;padding:18px 0;border-bottom:1px solid var(--line)}.flow-number{font-size:14px;font-weight:700;color:var(--accent);padding-top:2px}.flow-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.flow-meta>b{font-size:16px}.paragraph-flow p{font-size:16px;line-height:1.85;margin:9px 0}.analysis-title{display:flex;gap:15px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}.analysis-title select{background:white;border:1px solid var(--line);border-radius:7px;padding:9px 12px;font-size:14px;max-width:100%}.signal-cards{display:grid;grid-template-columns:1fr 1fr;gap:15px}.signal-card{background:white;border:1px solid var(--line);border-radius:9px;padding:20px}.signal-card>p{font-size:14px;line-height:1.9;margin:13px 0}.signal-examples{display:flex;gap:7px;flex-wrap:wrap}.signal-example{border:1px solid #d6e1e8;border-radius:5px;padding:5px 8px;background:#f6f9fb;color:var(--ink);text-align:left;font-size:15px;line-height:1.5}.signal-example small{display:block;font-size:12px;color:var(--muted)}.vocabulary-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.vocabulary-card{background:white;border:1px solid var(--line);border-radius:9px;padding:20px;min-width:0}.vocabulary-card>div:first-child{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}.vocabulary-card h4{font-size:21px;overflow-wrap:anywhere;line-height:1.5;font-family:Georgia,serif}.vocabulary-card .sentence-play{flex-shrink:0}.vocabulary-card>p{font-size:16px;margin-top:13px;line-height:1.8}.vocabulary-card .evidence-links{margin-top:12px}.final-reading{margin-top:34px}.final-reading .secondary{margin-top:13px}.reading-paper>.mini-label{display:block;margin-bottom:8px}.source-details{font-size:14px;line-height:1.9}.logic-item p{font-size:16px;line-height:1.85}.reading-paper .text-btn,.paragraph-flow .text-btn,.vocabulary-card .text-btn{font-size:14px}
@media(max-width:1100px){.tabs{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:1050px){.signal-cards{grid-template-columns:1fr}.syntax-grid{grid-template-columns:120px minmax(0,1fr)}}
@media(max-width:760px){.concept-grid,.vocabulary-grid{grid-template-columns:1fr}.concept-grid{gap:10px}.concept-grid article{padding:17px}.article-source,.background-card,.synthesis-card{padding:19px}.article-source blockquote{font-size:20px}.syntax-grid{grid-template-columns:1fr}.syntax-grid dt{border-bottom:0;padding:10px 2px 0;font-size:13px}.syntax-grid dd{padding:4px 2px 10px}.syntax-legend{padding:15px}.paragraph-flow>li{grid-template-columns:28px minmax(0,1fr);gap:8px}.source-details{font-size:14px}.tab span{font-size:12px}.flow-meta{gap:7px}.source-kicker{font-size:13px}.reading-tools label{align-items:flex-start}}
@media print{.reading-tools,.sentence-play,.text-btn,.reading-paragraph>button,.analysis-title select{display:none}.reading-paper{border:0;padding:0}.reading-paragraph{break-inside:avoid}.syntax-box,.vocabulary-card,.signal-card,.article-source{break-inside:avoid}}

.audio-help{margin:18px 0 24px;border:1px solid #bfd1e3;border-left:4px solid #315f91;border-radius:10px;background:#eef4fa;padding:20px 23px;scroll-margin-top:20px}.audio-help h3{font-size:18px;line-height:1.6;margin-bottom:10px}.audio-help p{font-size:15px;line-height:1.85;margin:9px 0}.audio-help .script-actions{margin:15px 0}.audio-help label{display:block;font-size:14px;margin:14px 0 7px}.audio-help input{width:100%;min-width:0;padding:11px;border:1px solid #bfd1e3;border-radius:7px;background:#fff;color:var(--ink);font-size:16px}.audio-help .copy-status{color:var(--accent);font-size:14px}.default-voice-help{border-top:1px solid #bfd1e3;padding-top:15px;margin-top:15px}.default-voice-help p{font-size:14px}@media(max-width:760px){.audio-help{padding:18px}.audio-help .script-actions{flex-direction:column;align-items:stretch}.default-voice-help>.secondary{width:100%}}
.chunk-reading-note{font-size:1rem;line-height:1.8;color:var(--muted);margin:0 0 20px}.chunk-reading-note>b{color:#087969;font-size:1.5rem;padding:0 5px}.meaning-chunks{display:flex;flex-wrap:wrap;gap:14px 12px;margin:22px 0;align-items:flex-start}.meaning-chunk{display:flex;flex-direction:column;max-width:100%;min-width:0}.chunk-line{display:flex;align-items:baseline;gap:12px;font-size:1.375rem;line-height:1.7;overflow-wrap:anywhere}.chunk-line>span:first-child{border-bottom:2px solid #bcded5;padding-bottom:4px;min-width:0}.chunk-divider{color:#087969;font-weight:800;font-size:1.5rem;flex:none;white-space:pre}.chunk-meaning{font-size:1rem;line-height:1.7;color:#42685e;max-width:40ch;margin-top:7px;overflow-wrap:anywhere;padding-right:22px}.paragraph-scene{display:grid;grid-template-columns:minmax(135px,185px) minmax(0,1fr);border:1px solid #d9e5e9;background:#f5f9fb;border-radius:10px;overflow:hidden;margin:16px 0 22px}.paragraph-scene-crop{position:relative;align-self:start;width:100%;overflow:hidden;background:#e9f0f4}.paragraph-scene-crop img{position:absolute;width:300%;height:200%;max-width:none;display:block}.paragraph-scene figcaption{padding:15px 18px;min-width:0}.paragraph-scene-label{font-size:.875rem;font-weight:700;color:var(--accent);letter-spacing:.03em}.paragraph-scene figcaption>p{font-size:1rem;line-height:1.75;margin:7px 0 12px;overflow-wrap:anywhere}.paragraph-concepts{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:8px}.paragraph-concepts>span{font-size:.875rem;line-height:1.6;padding:7px 9px;background:white;border:1px solid #cfdee5;border-radius:6px;overflow-wrap:anywhere}.paragraph-concepts>b{font-size:.875rem;font-weight:500;color:var(--muted);text-align:center;max-width:6em}.reading-paragraph .paragraph-scene{margin:14px 0}.reading-paragraph .paragraph-scene figcaption>p{font-family:inherit;font-size:1rem}.unit-top{flex-wrap:wrap;gap:10px}.unit-id strong{font-size:.875rem}
@media(max-width:760px){.paragraph-scene{grid-template-columns:1fr}.paragraph-scene-crop{width:100%;max-width:230px;justify-self:center}.paragraph-scene figcaption{padding:14px 16px}.chunk-line{font-size:1.25rem;gap:8px}.meaning-chunks{gap:14px 9px}.chunk-meaning{font-size:1rem}.paragraph-concepts{grid-template-columns:1fr;gap:5px}.paragraph-concepts>b{max-width:none}.paragraph-concepts>span{text-align:center}.paragraph-scene-label{font-size:.875rem}}
@media print{.paragraph-scene{break-inside:avoid}.chunk-divider{color:#087969!important}.meaning-chunk{break-inside:avoid}}
.annotation-tools{margin:18px 0 24px;padding:18px 20px;border:1px solid #c9dce6;border-radius:10px;background:#fff}.annotation-switches{display:flex;gap:14px 22px;flex-wrap:wrap}.annotation-switches label{display:flex;align-items:center;gap:8px;font-size:1rem;line-height:1.7}.annotation-switches input{width:18px;height:18px;accent-color:var(--accent);flex:none}.annotation-tools .signal-legend{margin:15px 0 8px}.signal-legend button{font-family:inherit;cursor:pointer;border:1px solid transparent;font-size:.875rem;line-height:1.5}.annotation-all{padding:6px 10px;border:1px solid #becbd5!important;border-radius:6px;background:#fff;color:var(--ink);font-size:.875rem;line-height:1.5;font-family:inherit;cursor:pointer}.annotation-all[aria-pressed=true],.signal-legend button[aria-pressed=true],.relation-chip[aria-pressed=true]{outline:2px solid #273d55;outline-offset:2px}.annotation-key{font-size:.875rem;line-height:1.7;color:#506377;margin:8px 0 12px}.relation-legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:17px;padding-top:17px;border-top:1px solid var(--line)}.relation-chip{border:1px solid var(--relation-border);border-radius:6px;padding:7px 10px;background:var(--relation-bg);color:var(--relation-ink);font-family:inherit;text-align:left;font-size:.875rem;line-height:1.6;cursor:pointer;max-width:100%}.relation-chip>b{display:inline-block;margin-right:7px;font-size:1rem}.relation-chip>small{display:block;font-size:.75rem;margin-left:19px}.relation-A{--relation-bg:#d7eaff;--relation-ink:#153e70;--relation-border:#5387bd}.relation-B{--relation-bg:#ffddc4;--relation-ink:#79330c;--relation-border:#c66b38}.relation-C{--relation-bg:#dbf3ce;--relation-ink:#285b19;--relation-border:#6a9a43}.relation-D{--relation-bg:#eadcff;--relation-ink:#593285;--relation-border:#9262bb}.relation-E{--relation-bg:#ffedb0;--relation-ink:#67470b;--relation-border:#bb902c}.english-mark{color:inherit;background:transparent;padding:0 1px;border-radius:2px;box-decoration-break:clone;-webkit-box-decoration-break:clone;font-weight:inherit}.english-mark.signal-ink{text-decoration-line:underline;text-decoration-style:solid;text-decoration-color:var(--signal-color);text-decoration-thickness:3px;text-underline-offset:5px}.english-mark.relation-ink{background:var(--relation-bg);color:var(--relation-ink)}.english-mark.relation-selected{outline:2px solid var(--relation-border);outline-offset:2px}.english-mark:focus{outline:3px solid #1b3655;outline-offset:3px;scroll-margin:25vh}.relation-tag{font-family:Arial,sans-serif;font-weight:700;font-size:.65em;vertical-align:super;line-height:0;padding-left:3px;user-select:none}.signal-ink.contrast{--signal-color:#d35b26}.signal-ink.reason{--signal-color:#198456}.signal-ink.example{--signal-color:#8751b4}.signal-ink.addition{--signal-color:#357ac7}.signal-ink.general{--signal-color:#bd8a11}.signal-ink.assumption{--signal-color:#c54474}.signal-ink.evidence{--signal-color:#14969a}.signal-ink.qualification{--signal-color:#667380}.signal-mark.qualification{background:#e2e8ee;color:#3f4f60}.opposition-note{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;font-size:.875rem;line-height:1.8;padding:13px 0 0;border-top:1px solid var(--line);margin-top:15px}.opposition-note>b{background:var(--relation-bg);color:var(--relation-ink);padding:0 8px;border-radius:3px;font-size:1rem}.opposition-note>span:last-child{flex:1;min-width:180px}.opposition-symbol{font-size:1.125rem}.relation-inspector{border-left:4px solid var(--relation-border);background:var(--relation-bg);border-radius:7px;padding:16px;margin-top:16px}.relation-inspector-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;font-size:1rem;color:var(--relation-ink)}.relation-inspector-head>span{font-size:.875rem}.relation-inspector>p{font-size:1rem;line-height:1.8;margin:10px 0;color:var(--relation-ink)}.relation-excerpts{display:flex;flex-wrap:wrap;gap:9px}.relation-excerpt{border:1px solid var(--relation-border);border-radius:6px;padding:10px 12px;background:#fff;color:var(--ink);text-align:left;font-family:inherit;max-width:100%;cursor:pointer}.relation-excerpt small{display:block;font-size:.875rem;color:var(--muted);margin-bottom:4px}.relation-excerpt>span{font-size:1rem;line-height:1.7;overflow-wrap:anywhere}.signal-example .signal-mark{font-size:1rem}.concept-grid .relation-concept{border-top-color:var(--relation-border);background:var(--relation-bg);color:var(--relation-ink)}
@media(max-width:760px){.annotation-tools{padding:16px 14px}.annotation-switches{flex-direction:column;gap:10px}.annotation-switches label{align-items:flex-start}.annotation-switches input{margin-top:4px}.signal-legend{gap:9px}.signal-legend button{padding:7px 9px}.relation-legend{gap:9px}.relation-chip{padding:8px 10px}.relation-excerpt{width:100%}.relation-inspector{padding:14px}.annotation-key{font-size:.875rem}.meaning-chunk .english-mark{line-height:inherit}}
@media print{.english-mark,.relation-chip,.signal-mark,.relation-inspector{-webkit-print-color-adjust:exact;print-color-adjust:exact}.annotation-switches,.annotation-all{display:none}.relation-legend,.signal-legend{break-inside:avoid}}
.relation-study-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.relation-study-card{padding:18px;border:1px solid var(--relation-border);border-top-width:4px;border-radius:9px;background:var(--relation-bg);min-width:0}.relation-study-card .relation-excerpts{margin:14px 0;flex-direction:column}.relation-study-card .relation-excerpt{width:100%}.relation-study-card>p{font-size:1rem;line-height:1.85;color:var(--relation-ink)}.relation-study-card:last-child:nth-child(odd){grid-column:1/-1}.relation-study-card .relation-excerpt>span{font-size:1.125rem}
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