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/* XUEZHE TEACH — visual lesson cards */
:root{--paper:#f2f0e7;--ink:#161616;--muted:#70737c;--line:#ccc9be;--blue:#3154ff;--pale:#e9edff;--red:#d94048;--orange:#ffbf49;--serif:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}
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@media(max-width:900px){.sidebar{border-right:0;border-bottom:2px solid #141414;gap:8px 15px}.sidebar nav a{font-size:10px;padding:5px 4px}.sidebar nav a.active{box-shadow:none;border:0}.brand{font-size:20px}.brand small{font-size:6px}.rxz-logo{width:48px;height:22px;font-size:19px}.rxz-logo i{height:21px}.hero{padding:28px}.hero h1{font-size:45px}.hero p{font-size:12px}.topbar{height:45px}.metrics .metric{padding:18px}.metrics .metric b{font-size:32px}.course-covers{gap:15px}.course-cover h2{font-size:30px}.catalog-list{gap:15px}.read-head h1{font-size:31px}.guide-index{padding:15px}.focus-card{scroll-margin-top:125px}}
@media(max-width:620px){.hero{padding:25px;min-height:260px;box-shadow:5px 5px var(--blue)}.hero h1{font-size:37px;line-height:1.25}.hero p{font-size:12px}.hero .eyebrow{font-size:9px}.sidebar nav{overflow:auto;justify-content:flex-start;gap:13px;padding-bottom:2px}.sidebar nav a{white-space:nowrap;font-size:9px;padding:3px 0}.sidebar nav a.active{background:none;color:var(--blue);border-bottom:2px solid var(--blue)}.sidebar .brand{font-size:18px}.rxz-logo{width:43px;font-size:18px}.sidebar .subject-switch{width:138px;box-shadow:2px 2px #141414}.subject-switch button{font-size:10px}.brand small{font-size:5px}.topbar>div{gap:7px}.metric span{font-size:10px}.metrics .metric{padding:16px}.catalog-list{grid-template-columns:1fr}.unit-row{padding:20px}.unit-row h3{font-size:17px}.read-head h1{font-size:28px}.reading-toolbar .tab-row{gap:22px}.tab-row button{font-size:11px}.reading-toolbar>.row .btn{padding:6px 9px;font-size:10px}.guide-layout{gap:20px}.guide-index{padding:15px;gap:12px}.guide-index h2{font-size:12px}.guide-index select{font-size:10px}.point-grid a{min-width:33px;min-height:33px;font-size:14px}.focus-card{padding:20px 16px;box-shadow:5px 5px var(--blue)}.focus-card>.row{gap:8px}.focus-card>.row h2{font-size:17px}.focus-card>.row>.tiny{font-size:9px}.sentence-grid{gap:6px;margin:20px 0}.sentence-grid button{width:30px;height:31px;font-size:11px}.annotated-source{padding:18px 15px;border-left-width:5px}.annotated-source p{font-size:20px;line-height:2.15}.ink-legend{gap:9px;font-size:9px;margin:20px 0}.ink-legend>span{padding:2px 5px}.ink-toolbar{padding:12px}.ink-toolbar .btn{font-size:9px;padding:5px 7px}.ink-toolbar .row{gap:7px}.plain-explanation{font-size:16px;line-height:2}.teaching-section{padding:23px 0}.teaching-label{font-size:11px}.concept-cards{grid-template-columns:1fr}.concept-card{padding:16px}.concept-card p{font-size:13px}.answer-cards article{padding:15px;gap:10px;grid-template-columns:29px 1fr}.answer-cards p{font-size:13px}.guide-bottom{gap:10px}.guide-bottom .btn{font-size:10px;padding:8px 10px}.all-sentences{padding:20px}.full-sentence-card{grid-template-columns:1fr;gap:8px}.full-sentence-card .original-passage{font-size:17px}.report-charts{grid-template-columns:1fr}.report-day-list{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.report-day{min-height:75px}.chapter-download h3{font-size:14px}.form-grid{grid-template-columns:1fr}.reading-card h3{font-size:19px}.section-title{font-size:23px}.panel{padding:20px}.btn{font-size:11px}.report-form-note{font-size:10px}}
@media print{*{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}.hero{background:white;color:black;box-shadow:none}.hero p,.hero .eyebrow{color:black}.hero h1 em{color:#3154ff}.guide-index,.ink-toolbar,.guide-bottom,.reading-toolbar{display:none!important}.guide-layout{display:block}.focus-card,.panel,.hard-card{box-shadow:none;border:1px solid black;padding:16px}.annotated-source{background:#fff0ce!important}.concept-cards{grid-template-columns:1fr 1fr}.teaching-section{break-inside:avoid}.report-charts{grid-template-columns:1fr 1fr}.chart-svg{max-height:230px}.report-day-list{grid-template-columns:repeat(7,1fr)}.btn{display:none}.all-sentences{margin-top:20px}.ink-circle,.ink-box{border-width:1pt}.ink-underline{border-bottom-width:2pt}.full-sentence-card{break-inside:avoid}.focus-card{break-before:auto}.plain-explanation{font-size:11pt}.annotated-source p{font-size:13pt}.concept-card p,.answer-cards p{font-size:10pt}.metrics{box-shadow:none}.day-row{break-inside:avoid}}

.teacher-annotation-note{border:1.5px dashed #b1aa99;padding:16px;margin-bottom:25px;background:#fbf9f0}.teacher-annotation-note>b{font-size:12px}.teacher-annotation-note p{font-size:11px;line-height:1.9;color:#6a6558}.teacher-annotation-note .check{font-size:10px}

/* INK PALETTE */
.ink-blue{--ink-color:#3154ff;--ink-bg:#e5eaff}.ink-orange{--ink-color:#b86200;--ink-bg:#fff0d1}.ink-green{--ink-color:#13745b;--ink-bg:#dcf2e9}.ink-purple{--ink-color:#9250b7;--ink-bg:#f1e4fa}.ink-red{--ink-color:#cc2f3a;--ink-bg:#ffe4e5}.ink-circle{color:var(--ink-color);border:2px solid var(--ink-color);border-radius:1.2em;padding:0 .13em;box-decoration-break:clone;-webkit-box-decoration-break:clone;font-weight:800}.ink-underline{border-bottom:3px solid var(--ink-color);box-decoration-break:clone;-webkit-box-decoration-break:clone}.ink-box{border:1.5px solid var(--ink-color);padding:0 .1em;background:var(--ink-bg);color:var(--ink-color);box-decoration-break:clone;-webkit-box-decoration-break:clone;font-weight:700}.ink-highlight{background:var(--ink-bg);color:var(--ink-color);border-bottom:2px solid var(--ink-color);box-decoration-break:clone;-webkit-box-decoration-break:clone}

.teacher-mark-details{font-size:12px;margin:15px 0 22px}.teacher-mark-details>summary{font-weight:800;cursor:pointer;color:#3154ff}.teacher-mark-details article{border:1px solid #d1cdbf;padding:15px;margin-top:12px;background:#fffdf4}.teacher-mark-details p{font-size:12px;line-height:1.95;margin-bottom:0}

.teacher-annotation-note{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 15px;margin:15px 0}.teacher-annotation-note>b{font-size:11px}.teacher-annotation-note .check{margin:0}