.school-shell{--school-navy:#163d50;--school-teal:#007d79;--school-line:#dbe5ea;--primary:#007d79;--primary-foreground:#fff;display:flex;min-height:100dvh;background:#f4f7f9;color:#183849;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}.school-sidebar{width:224px;position:fixed;inset:0 auto 0 0;background:white;border-right:1px solid var(--school-line);padding:34px 20px 20px;display:flex;flex-direction:column;z-index:30}.school-brand{display:flex;align-items:center;gap:12px;color:#007d79;font-size:18px;font-weight:700;letter-spacing:0}.school-brand>svg{flex-shrink:0}.school-brand small{display:block;color:#67808e;font-size:11px;font-weight:400;letter-spacing:2px;margin-top:2px}.school-role{color:#8395a0;font-size:12px;margin:45px 14px 15px}.school-sidebar nav{display:flex;flex-direction:column;gap:7px}.school-sidebar nav a{display:flex;gap:12px;align-items:center;padding:13px 14px;border-radius:7px;font-size:14px;color:#526b7a}.school-sidebar nav a:hover{background:#f4f8f9}.school-sidebar nav .selected{background:#e8f5f3;color:#007d79;font-weight:600}.school-sidebar-bottom{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:20px;border-top:1px solid var(--school-line);font-size:13px}.school-sidebar-bottom small{display:block;font-size:11px;color:#8a9ba5}.school-sidebar-bottom button{cursor:pointer;margin-left:auto;color:#7c8d96}.school-avatar{display:grid;place-items:center;width:34px;height:34px;background:#e1edf1;border-radius:50%;font-size:15px;color:#325d70}.school-body{margin-left:224px;min-width:0;width:calc(100% - 224px)}.school-learning-shell .school-body{margin-left:0;width:100%}.school-main{max-width:1400px;margin:auto;padding:38px 40px 80px}.school-date{font-size:12px;color:#8298a5;margin:0 0 12px}.school-page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px}.school-page-heading h1{font-size:26px;line-height:1.45;font-weight:650;letter-spacing:-.5px;margin:0 0 10px;color:#143b4e}.school-page-heading p:not(.school-date){color:#80909d;font-size:13px}.school-overview{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:18px 0 34px}.school-overview>a{padding:30px;border-radius:12px;min-height:220px;display:block;position:relative;overflow:hidden}.school-overview-online{background:#123f55;color:#fff}.school-overview-class{background:#deeeeb;color:#195b55}.school-overview h2{font-size:20px;font-weight:600;line-height:1.5;max-width:290px;margin:18px 0 10px}.school-overview p{font-size:12px;opacity:.65;line-height:1.8}.school-overview span{margin-top:28px;font-size:12px}.school-overview span,.school-section-heading{display:flex;justify-content:space-between;align-items:center}.school-section-heading{gap:12px;margin:24px 0 16px}.school-section-heading h2{font-size:17px;font-weight:650;margin:0}.school-section-heading>a{font-size:12px;color:#007d79}.school-section-heading small{color:#7d939f;font-size:12px}.school-list{background:#fff;border:1px solid var(--school-line);border-radius:10px;overflow:hidden}.school-course-row{display:flex;align-items:center;gap:16px;padding:22px 24px;border-bottom:1px solid #edf2f5}.school-course-row:last-child{border-bottom:0}.school-course-row h3{font-weight:600;font-size:15px}.school-course-row p{color:#8295a0;font-size:12px;margin-top:5px}.school-course-row>span:last-child{display:flex;gap:7px;margin-left:auto;font-size:12px;color:#2d6b72}.school-course-icon{background:#eaf2f5;padding:13px;border-radius:7px;color:#3f6b80}.school-filters{display:flex;gap:14px;align-items:end;flex-wrap:wrap;margin-bottom:25px}.school-dialog label,.school-login label,.school-main label{display:block;font-size:13px;font-weight:500;color:#476473;margin-bottom:14px}.school-dialog input,.school-dialog select,.school-dialog textarea,.school-login input,.school-main input,.school-main select,.school-main textarea{display:block;border:1px solid #ccdbe2;border-radius:6px;background:#fff;padding:10px 12px;font:inherit;color:#274b5c;width:100%;margin-top:8px;max-width:100%}.school-filters label{min-width:200px;margin:0}.school-filters select{max-width:330px}.school-dialog input:focus,.school-dialog textarea:focus,.school-login input:focus,.school-main input:focus,.school-main select:focus,.school-main textarea:focus{outline:2px solid #60a9aa;outline-offset:2px}.school-main a:focus-visible,.school-main button:focus-visible,.school-sidebar a:focus-visible,.school-sidebar button:focus-visible{outline:2px solid #008e89;outline-offset:3px}.school-dialog button,.school-main button{cursor:pointer}.school-main button:disabled{cursor:wait}.school-classroom-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:26px}.school-lessons{border-right:1px solid var(--school-line);padding-right:20px}.school-lessons>.school-section-heading{margin-top:5px}.school-lessons>button:not(:last-child){display:block;width:100%;text-align:left;padding:13px 12px;border-radius:6px;font-size:13px;margin-bottom:7px;line-height:1.6}.school-lessons>button span{display:block;font-size:10px;color:#95a5ae}.school-lessons>button.selected{background:#dfeeee;color:#007b76;font-weight:600}.school-lessons>button:last-child{width:100%;margin-top:10px}.school-session-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--school-line);padding-bottom:23px;margin-bottom:20px}.school-session-heading h2{font-size:22px;font-weight:600;margin:12px 0 7px}.school-session-heading p{font-size:12px;color:#7a919f}.school-pill{display:inline-flex;align-items:center;padding:3px 8px;border-radius:5px;font-size:11px;color:#547689;background:#e8eff4;white-space:nowrap}.school-pill.active{background:#d8f0e9;color:#007d5e}.school-actions,.school-activity-tools{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.school-activity-tools button{font-size:12px;height:34px;padding:7px 10px;background:transparent}.school-activity{background:#fff;border:1px solid var(--school-line);border-radius:9px;padding:23px;margin-bottom:16px;overflow:hidden}.school-activity-heading{display:flex;gap:10px;align-items:center;font-size:11px;color:#8a9ca6;margin-bottom:14px}.school-activity-heading strong{margin-left:auto;font-size:11px;font-weight:400}.school-activity h2,.school-activity h3{font-size:17px;font-weight:600;margin-bottom:10px}.school-instructions{font-size:13px;color:#5f7786;line-height:1.9;white-space:pre-wrap;margin-bottom:18px;overflow-wrap:anywhere}.school-activity details{font-size:12px;margin-top:20px;border-top:1px solid #e8eff3;padding-top:15px}.school-activity summary{cursor:pointer;color:#537486}.school-activity textarea{margin-bottom:14px;resize:vertical}.school-submission{padding:16px;background:#f7fafb;border-radius:5px;margin-top:12px;overflow-wrap:anywhere}.school-submission strong{font-size:12px;font-weight:600}.school-submission small{font-weight:400;color:#879aa5}.school-submission p{font-size:13px;white-space:pre-wrap;line-height:1.9;margin:10px 0}.school-submission blockquote{border-left:3px solid #41a89c;padding-left:12px;color:#217a70;font-size:12px;margin:14px 0;white-space:pre-wrap}.school-empty{text-align:center;padding:50px 25px;border:1px dashed #c8d9e3;border-radius:9px;color:#7a96a6;background:#f8fbfc}.school-empty>svg{margin:0 auto 18px;color:#95b3bd}.school-empty h3{font-size:16px;font-weight:500;color:#4a7182;margin-bottom:12px}.school-empty p{font-size:12px;line-height:1.8;margin:0 auto 20px;max-width:380px}.school-student-tasks{max-width:880px}.school-receipt{color:#208075;font-size:12px;display:flex;gap:7px;margin-top:18px;align-items:center}.school-help{color:#8096a3;font-size:12px;line-height:1.8;margin:12px 0 22px}.school-class-summary{display:flex;gap:18px;align-items:center;padding:26px;background:#e6f1f3;color:#2b6475;border-radius:10px;margin:20px 0}.school-class-summary h2{font-size:22px;font-weight:600;margin-bottom:6px}.school-class-summary p{font-size:12px;color:#6b8c99}.school-table-wrap{overflow:auto;background:#fff;border:1px solid var(--school-line);border-radius:8px}.school-table-wrap table{width:100%;text-align:left;border-collapse:collapse;font-size:12px}.school-table-wrap th{background:#edf3f6;color:#7894a3;font-weight:400;padding:14px 18px;white-space:nowrap}.school-table-wrap td{padding:14px 18px;border-top:1px solid #edf1f4}.school-table-wrap select{min-width:100px;max-width:180px;margin:0}.school-info-line{font-size:12px;color:#74909e;display:flex;align-items:center;gap:8px;margin:15px 0 25px}.school-dot{display:inline-block;width:7px;height:7px;background:#b8c5cc;border-radius:50%}.school-dot.on{background:#1d9c80}.school-online-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.school-online-card{background:#fff;border:1px solid var(--school-line);border-radius:10px;overflow:hidden}.school-book-cover{background:#cde4e5;height:150px;display:flex;align-items:center;justify-content:center;position:relative;color:#44858a}.school-book-cover>span{position:absolute;top:14px;right:14px;background:#ffffffb8;border-radius:4px;padding:4px 8px;font-size:11px}.school-online-card-body{padding:20px}.school-online-card-body h2{font-size:17px;font-weight:600;margin-bottom:10px;overflow-wrap:anywhere}.school-online-card-body p{font-size:11px;color:#8c9da6;min-height:34px}.school-online-card-body 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1fr;min-height:100dvh;background:#f7fafb;color:#163d50}.school-login>section{background:#143f55;color:#d6ebed;padding:15vh 12%;display:flex;flex-direction:column;align-items:start}.school-login h1{font-size:38px;line-height:1.65;font-weight:600;margin:35px 0 20px;letter-spacing:1px}.school-login section p{font-size:14px;color:#89acbb;line-height:2}.school-login-note{margin-top:auto;padding-top:70px;font-size:12px;color:#6c929f}.school-login form{width:100%;max-width:390px;margin:auto;padding:45px}.school-login form h2{font-size:24px;font-weight:650;margin-bottom:12px}.school-login form>p{font-size:12px;color:#7c939f;line-height:1.8;margin-bottom:30px}.school-login form>button[type=submit]{background:#007d79;color:#fff;width:100%;margin-top:10px}.school-text-button{display:block;font-size:12px;color:#007d79;margin:22px auto;cursor:pointer}.school-login small{display:block;text-align:center;color:#8da2ad;font-size:10px}.school-course-main{height:100dvh;overflow:hidden}.school-engine{height:100%;position:relative;background:#fff}.school-engine>div{height:100%}.school-options{display:flex;flex-direction:column;gap:8px;margin:15px 0 22px}.school-reference{padding:15px;background:#edf8f4;font-size:13px;color:#1f7666;margin-top:15px}@media (min-width:1400px){.school-main{padding-top:48px}.school-overview>a{padding:34px}}@media (max-width:1100px){.school-sidebar{width:184px;padding-left:14px;padding-right:14px}.school-body{margin-left:184px;width:calc(100% - 184px)}.school-main{padding:28px 25px 60px}.school-online-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.school-classroom-layout{grid-template-columns:160px minmax(0,1fr);gap:18px}.school-overview h2{font-size:17px}}@media (max-width:768px){.school-sidebar{width:72px;padding:23px 7px}.school-brand{justify-content:center}.school-brand 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.school-section-heading{display:none}.school-lessons>button:not(:last-child){min-width:140px;width:auto;margin:0}.school-lessons>button:last-child{min-width:120px;margin:0;width:auto}.school-activity{padding:18px}.school-activity-heading{flex-wrap:wrap;gap:7px}.school-course-shell .school-sidebar{display:none}.school-course-shell .school-body{margin:0;width:100%}.school-login{grid-template-columns:1fr}.school-login>section{padding:35px 30px}.school-login h1{font-size:25px;margin:15px 0}.school-login section>p,.school-login-note{display:none}.school-login form{padding:35px 30px;max-width:430px}.school-online-grid{grid-template-columns:1fr}.school-filters label{min-width:150px;flex:1}}@media (max-width:480px){.school-overview{grid-template-columns:1fr}.school-overview>a{min-height:170px}.school-overview h2{margin:10px 0}.school-overview span{margin-top:18px}.school-course-row{padding:18px 14px}.school-course-row>span:last-child{display:none}.school-page-heading h1{font-size:19px}.school-activity-heading strong{margin-left:0}}@media (prefers-reduced-motion:reduce){.school-shell *{animation:none!important;transition:none!important}}