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/* Stage comparison: every level's focus stays visible. */
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.back-overview{display:inline-block;font-size:14px;margin-bottom:16px;color:#596540}.choice-task{align-self:center}.book-companions figcaption{font-size:14px;line-height:1.45;overflow-wrap:anywhere}.future .marker{display:none}@media(max-width:600px){.topbar{padding-top:12px;padding-bottom:12px}.brand span{display:none}.hero{padding-top:18px;padding-bottom:12px}.hero .eyebrow{display:none}.hero h1{font-size:28px;margin:4px 0 10px}.hero .lead{margin:0;font-size:15px}.overview-heading{margin-bottom:10px}.stage-choices{gap:6px}.stage-choice{padding:9px 11px;line-height:1.45}.stage-choice[aria-pressed=true]{padding:8px 10px}.choice-content{gap:3px}.choice-task{align-self:auto}.choice-delta{font-size:13px}.stage-overview{margin-bottom:22px}}
/* Restore the complete course narrative without hiding the stage comparison. */
.hero h1 br{display:block}.hero h1 em{display:block;font-size:.52em;line-height:1.6;margin-top:12px;font-style:normal;color:#596540}.hero .eyebrow{display:block}.hero-note{margin:22px 0}.complete-route{margin-top:28px;padding:22px;background:#f6f7f3;border-radius:12px}.complete-route>p{font-size:14px;font-weight:700;color:#596540;margin:0 0 12px}.complete-route ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.complete-route li{border-left:3px solid #c2da70;padding-left:12px}.complete-route a{display:block;text-decoration:none;font-size:16px;font-weight:700}.complete-route small{display:block;font-size:14px;font-weight:400;color:#596540;margin-top:3px}.after-l4-link{display:block;margin-top:14px;font-size:15px;color:#596540}.beyond-l4{padding:28px 0;margin:12px 0 38px;border-top:2px solid #596540}.beyond-l4 h2{font-size:29px;margin:8px 0 12px}.beyond-l4 .transition{padding-bottom:18px}.beyond-l4 .future{margin:0;padding:20px;background:#f6f7f3}.beyond-l4 .future h3{font-size:23px}@media(max-width:600px){.hero{padding-top:26px;padding-bottom:24px}.hero h1{font-size:34px;line-height:1.25;margin:12px 0}.hero .lead{font-size:16px}.hero-note{padding:17px;margin:20px 0}.complete-route{padding:16px;margin-top:22px}.complete-route ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 12px}.complete-route a{font-size:15px}.complete-route small{font-size:13px}.beyond-l4 h2{font-size:26px}}
/* Small connectors only; keep the original overview layout. */
.complete-route li{position:relative}.complete-route li:not(:last-child)::after{content:'→';position:absolute;right:-12px;top:13px;width:12px;text-align:center;color:#596540;font-size:14px;line-height:14px;font-weight:400;pointer-events:none}.complete-route li:nth-child(3)::after{content:'↙';right:50%;top:auto;bottom:-14px}@media(max-width:600px){.complete-route li:nth-child(3)::after{content:'→';right:-12px;top:13px;bottom:auto}.complete-route li:nth-child(2)::after,.complete-route li:nth-child(4)::after{content:'↙';right:50%;top:auto;bottom:-15px}}
/* Dedicated stage page; the overview and other sections remain unchanged. */
.level-page{min-height:100vh;background:#fff;padding-bottom:40px}.level-page-header{position:sticky;top:0;z-index:8;background:#fff;border-bottom:1px solid #e0e4d6;padding:18px max(24px,calc((100vw - 1000px)/2));box-shadow:0 3px 15px #11111106}.level-page-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:17px}.level-page-heading>span{font-size:14px;color:#596540}.level-page-heading button{font-size:14px;padding:8px 12px;border:1px solid #e0e4d6;border-radius:20px;background:white;color:#596540;cursor:pointer}.mini-level-track{display:flex;align-items:center;justify-content:space-between;position:relative;isolation:isolate}.mini-level-track::before{content:'';position:absolute;height:2px;background:#e0e4d6;left:7%;right:7%;top:50%;z-index:-1}.mini-level-track button{border:0;background:#fff;padding:0 8px;cursor:pointer;flex:0 1 70px;color:#596540}.mini-level-track button span{width:46px;height:38px;display:flex;align-items:center;justify-content:center;margin:auto;background:#f6f7f3;border:1px solid #e0e4d6;border-radius:20px;font-size:16px;font-weight:700}.mini-level-track button[aria-selected=true] span{background:#596540;border-color:#596540;color:white;box-shadow:0 0 0 3px #f6f7f3}.mini-level-track .reached span{border-color:#c2da70}.level-page-content{max-width:1060px;padding:30px;margin:0 auto}.level-page-content>.stage{border:0!important;padding:0!important;margin:0!important}.level-page .stage-head h3{outline:none}.level-page button:focus-visible{outline:3px solid #596540;outline-offset:4px}.level-page .books{margin-top:22px}@media(max-width:600px){.level-page-header{padding:12px 16px}.level-page-heading{margin-bottom:12px}.level-page-heading>span{font-size:13px}.level-page-heading button{padding:6px 10px}.mini-level-track button{padding:0 4px;flex-basis:50px}.mini-level-track button span{width:40px;height:34px;font-size:15px}.level-page-content{padding:24px 20px}.level-page-content>.stage{padding:0!important}.level-page .stage-head h3{font-size:26px}.level-page{padding-bottom:24px}}
/* Only the stage cards transition; the surrounding page stays in place. */
.stage-surface{position:relative;scroll-margin-top:16px;overflow-anchor:none}.stage-surface .level-page{min-height:0;padding:0;margin:0 0 30px;border:1px solid #e0e4d6;border-radius:16px;overflow:clip;background:white}.stage-surface .level-page-header{position:relative;top:auto;padding:16px 24px;box-shadow:none}.stage-surface .level-page-content{max-width:none;padding:24px;margin:0}.stage-surface .level-page-heading>span{display:none}.stage-surface .level-page-heading{justify-content:flex-end;margin-bottom:10px}.stage-surface .level-page-content>.stage{padding:0!important}.stage-surface .level-page-content .stage-head h3{font-size:28px}@media(max-width:600px){.stage-surface .level-page-header{padding:12px 14px}.stage-surface .level-page-content{padding:20px 16px}.stage-surface .level-page-content .stage-head h3{font-size:25px}}
.shelf-trigger{display:flex;width:100%;justify-content:space-between;align-items:center;gap:12px;text-align:left;font:inherit;cursor:pointer;border:0;padding:20px;background:#f6f7f3;color:#111111}.shelf-trigger>span{font-size:17px;font-weight:700}.shelf-trigger>small{font-size:14px;color:#596540}.shelf-trigger::after{content:'全屏查看';font-size:14px;white-space:nowrap;color:#596540}.shelf-trigger:focus-visible{outline:3px solid #596540;outline-offset:3px}.shelf-open{overflow:hidden}#shelf-dialog{position:fixed;inset:0;margin:0;border:0;padding:0;width:100vw;height:100vh;height:100dvh;max-width:none;max-height:none;background:#fff;color:#111111;overflow:hidden;border-radius:0}#shelf-dialog[open]{display:flex;flex-direction:column}#shelf-dialog::backdrop{background:#11111155}.shelf-topbar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px max(24px,calc((100vw - 1080px)/2));border-bottom:1px solid #e0e4d6;background:#fff}.shelf-topbar h2{font-size:23px;margin:0;line-height:1.3}.shelf-topbar p{font-size:14px;color:#596540;margin:4px 0 0}.shelf-topbar button{border:1px solid #e0e4d6;border-radius:24px;padding:10px 16px;background:#f6f7f3;color:#596540;font-size:15px;white-space:nowrap;cursor:pointer}.shelf-scroll{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:24px max(24px,calc((100vw - 1080px)/2)) 48px;scrollbar-gutter:stable}.shelf-panel .book-grid{margin:20px 0 0}.shelf-panel .shelf-intro{margin-top:0}.shelf-panel .book-unit{min-width:0}@media(max-width:600px){.shelf-trigger{display:block;padding:18px 15px}.shelf-trigger>span,.shelf-trigger>small{display:block}.shelf-trigger>small{margin:5px 0 10px}.shelf-trigger::after{font-size:14px}.shelf-topbar{padding:14px 16px}.shelf-topbar h2{font-size:20px}.shelf-topbar p{font-size:13px}.shelf-topbar button{font-size:14px;padding:9px 12px}.shelf-scroll{padding:20px 16px calc(30px + env(safe-area-inset-bottom))}}
/* Curriculum continuation and a single classroom narrative */
details.beyond-l4{margin:28px 0;padding:0;border:1px solid #e0e4d6;border-radius:12px;background:#fff}details.beyond-l4>summary{padding:20px 24px;color:#111111;font-size:18px;font-weight:650}details.beyond-l4>summary small{display:block;font-size:14px;font-weight:400;color:#596540;margin:5px 0 0 20px}details.beyond-l4[open]>summary{border-bottom:1px solid #e0e4d6}details.beyond-l4 .future{margin:16px;padding:20px;border-radius:8px}details.beyond-l4 .future h3{font-size:21px}.class-section .learning-logic{margin:28px 0;background:white;padding:26px;border:1px solid #e0e4d6;border-radius:14px}.class-section .learning-logic h3{font-size:22px}.class-section .learning-logic>p{max-width:850px}.class-section .logic-grid{gap:18px}.class-section .logic-grid article{padding:0;border:0;background:transparent}.class-section .logic-grid h4{font-size:17px}.class-section .logic-grid p{font-size:15px;margin-bottom:0}.lesson-sequence{display:flex;list-style:none;padding:0;margin:28px 0;gap:8px;counter-reset:step}.lesson-sequence li{flex:1;text-align:center;padding:12px 8px;background:#f6f7f3;color:#596540;border-radius:7px;font-size:16px;counter-increment:step}.lesson-sequence li:before{content:counter(step,decimal-leading-zero);display:block;font-size:14px;color:#596540}.lesson-list{border-left:2px solid #e0e4d6;margin-left:16px;padding-left:25px}.lesson-list .lesson{position:relative;padding:24px 28px}.lesson-list .lesson:before{content:'';position:absolute;width:12px;height:12px;background:#596540;border:3px solid #f6f7f3;border-radius:50%;left:-33px;top:38px}.lesson-title h3{margin:0;font-size:24px}.lesson-title>span{font-size:24px;color:#596540}.lesson-format{margin:8px 0 14px;color:#596540;font-size:15px}.lesson-more{border-top:1px solid #e0e4d6;margin-top:18px}.lesson-more>summary{font-size:15px;color:#596540;padding:14px 0 0}.lesson-more .task-pair{border:0;padding:0}.lesson-more figure{margin-bottom:12px}@media(max-width:600px){details.beyond-l4>summary{padding:17px;font-size:17px}.class-section .learning-logic{padding:20px}.lesson-sequence{gap:4px}.lesson-sequence li{font-size:14px;padding:10px 4px}.lesson-list{margin-left:6px;padding-left:17px}.lesson-list .lesson{padding:20px 17px}.lesson-list .lesson:before{left:-25px}.lesson-title h3{font-size:22px}}
/* Follow the reading sequence around each row. */
.complete-route ol{gap:28px 26px}.complete-route li:nth-child(4){grid-column:3;grid-row:2}.complete-route li:nth-child(5){grid-column:2;grid-row:2}.complete-route li:nth-child(6){grid-column:1;grid-row:2}.complete-route li:not(:last-child)::after{content:'→';right:-23px;left:auto;top:13px;bottom:auto;width:20px;font-size:18px;line-height:20px}.complete-route li:nth-child(3)::after{content:'↓';right:calc(50% - 10px);top:auto;bottom:-24px}.complete-route li:nth-child(4)::after,.complete-route li:nth-child(5)::after{content:'←';left:-26px;right:auto}
@media(max-width:600px){.complete-route ol{gap:28px 24px}.complete-route li:nth-child(3){grid-column:2;grid-row:2}.complete-route li:nth-child(4){grid-column:1;grid-row:2}.complete-route li:nth-child(5){grid-column:1;grid-row:3}.complete-route li:nth-child(6){grid-column:2;grid-row:3}.complete-route li:nth-child(2)::after,.complete-route li:nth-child(4)::after{content:'↓';left:auto;right:calc(50% - 10px);top:auto;bottom:-24px}.complete-route li:nth-child(3)::after{content:'←';left:-26px;right:auto;top:13px;bottom:auto}.complete-route li:nth-child(5)::after{content:'→';left:auto;right:-23px;top:13px;bottom:auto}}
.progression-checks{list-style:none;padding:0;margin:22px 0;display:grid;gap:16px}.progression-checks li{border-top:1px solid #e0e4d6;padding-top:14px}.progression-checks b{display:block;color:#111111;margin-bottom:5px}.principle>p+ul+p{margin-top:20px}
.child-photos,.selection-preview{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0}.child-photos img,.selection-preview img{width:100%;height:220px;object-fit:contain;background:#f6f7f3;border-radius:8px}.selection-preview video{grid-column:1/-1;max-height:360px;width:100%}.record-detail{margin-top:18px}.record-state{font-size:14px;font-weight:700;color:#596540}.video-card video{max-height:520px}.video-card h3{margin-bottom:8px}#publish-review{padding:26px}#publish-review .admin-actions{position:sticky;bottom:0;background:#fff;padding:16px 0}#old-drafts{margin-top:35px}#old-drafts button{margin-left:16px}@media(max-width:600px){.child-photos,.selection-preview{grid-template-columns:repeat(2,minmax(0,1fr))}.child-photos img,.selection-preview img{height:180px}}