*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;background:#f5f7fb;color:#172b46;font-family:Inter,"Microsoft YaHei","PingFang SC",system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #ed9d1b;outline-offset:4px}button{cursor:pointer}button:disabled{cursor:not-allowed}h1,h2,h3,p{margin:0}h1{font-size:2rem;line-height:1.35;letter-spacing:-.04em}h2{font-size:1.22rem;line-height:1.5}h3{font-size:1.08rem}p{color:#59697f}.skip{position:fixed;top:-80px;left:15px;z-index:99;background:white;padding:12px}.skip:focus{top:10px}.preview{min-height:35px;padding:7px 22px;background:#fff5df;color:#795112;font-size:.8125rem;text-align:center;border-bottom:1px solid #f1dfb4}.layout{display:grid;grid-template-columns:224px minmax(0,1fr);min-height:calc(100svh - 35px)}.sidebar{background:#0b1f3a;color:#c4d2e4;display:flex;flex-direction:column;padding:27px 18px;gap:25px}.brand{display:flex;align-items:center;gap:10px;color:white;font-weight:750;font-size:1.18rem}.brandmark{display:grid;place-items:center;border:1px solid #57799f;border-radius:10px;width:38px;height:38px;color:#fff;background:#173758}.brand small{display:block;color:#8ea5c2;font-size:.68rem;font-weight:500;letter-spacing:.12em}.nav-label{font-size:.75rem;color:#8ea5c2;padding:0 12px;margin-bottom:10px;letter-spacing:.08em}.side-nav{display:grid;gap:6px}.nav-item{display:flex;align-items:center;gap:11px;min-height:48px;padding:10px 13px;border-radius:8px;font-size:.9375rem}.nav-item:hover{background:#173653;color:white}.nav-item.active{background:#155eef;color:white}.nav-icon{display:grid;place-items:center;font-size:.88rem;width:22px;height:22px;border:1px solid currentColor;border-radius:6px;opacity:.9}.sidebar-bottom{margin-top:auto;border-top:1px solid #29405d;padding-top:18px;font-size:.8125rem;line-height:1.9}.sidebar-bottom p{color:#a6bad3}.sidebar-bottom a{color:#d8e8ff}.workspace{min-width:0}.topbar{background:#fff;border-bottom:1px solid #e2e8f0;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:78px;padding:16px 36px}.top-title{font-size:.9375rem;font-weight:600}.top-title span{font-size:.8125rem;color:#708097;font-weight:400;margin-left:12px}.role-picker{display:flex;align-items:center;gap:9px;font-size:.8125rem;color:#61728a}.role-picker select{background:#f8faff;border:1px solid #dce3ed;border-radius:8px;color:#253c57;font-size:.875rem;padding:9px 28px 9px 10px;max-width:180px}.mobile-brand{display:none}.main{padding:28px 36px 42px;max-width:1440px;margin:auto;min-height:65vh}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:#6a7b90;font-size:.8125rem;margin-bottom:22px}.breadcrumbs a:hover{color:#155eef}.breadcrumbs span:last-child{color:#213b5c}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:24px}.page-head p{margin-top:8px}.eyebrow{font-size:.75rem;letter-spacing:.12em;color:#155eef;font-weight:700;margin-bottom:8px}.muted{color:#708097;font-size:.875rem}.badge{display:inline-flex;align-items:center;border:1px solid #dce4ef;color:#617087;background:#f6f8fc;border-radius:5px;padding:3px 8px;font-size:.75rem;line-height:1.5;white-space:normal}.badge.live{color:#187052;background:#edf9f3;border-color:#c9e8dc}.badge.blue{color:#215db1;background:#eff5ff;border-color:#d3e2ff}.badge.warn{color:#916115;background:#fff7e7;border-color:#efdfbd}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid #e1e7ef;border-radius:12px;padding:23px;min-width:0;display:flex;flex-direction:column;gap:14px}.card.link{transition:border-color .15s,box-shadow .15s,transform .15s}.card.link:hover{border-color:#99baf5;box-shadow:0 5px 16px #18366509;transform:translateY(-2px)}.card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.tile-icon{width:44px;height:44px;display:grid;place-items:center;background:#eff4ff;color:#1d5bc5;border-radius:10px;font-size:1.2rem;font-weight:650}.card p{font-size:.875rem}.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:.8125rem;color:#6d7f96}.arrow{font-size:1.2rem;color:#155eef}.section{margin-top:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:15px}.text-link{color:#155eef;font-size:.875rem;font-weight:600}.hero{background:#102d50;border:1px solid #173e68;color:white;border-radius:14px;padding:29px;display:flex;justify-content:space-between;align-items:center;gap:25px}.hero h2{font-size:1.55rem;margin:10px 0}.hero p{color:#b7cce3;font-size:.9375rem;max-width:630px}.hero .eyebrow{color:#9dc1ff}.hero .badge{background:#244969;color:#c8e6ff;border-color:#476b8d}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:10px 17px;border-radius:8px;border:1px solid #d4deeb;background:white;color:#234564;font-weight:650;font-size:.875rem;text-align:center}.btn.primary{background:#155eef;border-color:#155eef;color:white}.btn:disabled{background:#eef1f6;color:#78889d;border-color:#e3e8ef}.hero .btn{white-space:nowrap}.hero-actions{display:grid;gap:8px}.hero-actions small{color:#a6bfdc;font-size:.75rem;text-align:center}.split{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(240px,1fr);gap:20px;margin-top:24px}.panel{background:#fff;border:1px solid #e1e7ef;border-radius:12px;padding:24px}.panel h2{margin-bottom:14px}.empty{padding:35px 20px;text-align:center;display:grid;justify-items:center;gap:12px}.empty .tile-icon{background:#f0f4f9;color:#71869f;width:52px;height:52px}.empty p{max-width:560px;font-size:.9375rem}.empty.compact{padding:16px 6px}.note{background:#edf4ff;border-left:3px solid #3976d7;padding:13px 16px;color:#3b587d;font-size:.875rem;margin-bottom:20px;line-height:1.85}.note.warn{background:#fff8eb;border-color:#d0a354;color:#786036}.checklist{margin:12px 0 0;padding-left:21px;color:#5b6f87;font-size:.9375rem}.checklist li{margin:9px 0}.flow{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}.flow span{font-size:.875rem;border:1px solid #dce5ef;border-radius:8px;background:white;padding:11px 16px}.flow b{color:#1e60c9;margin-right:9px}.tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid #dce5f0;margin:25px 0 22px;padding-bottom:8px}.tab{padding:10px 16px;min-height:44px;color:#586c85;border-radius:7px;font-size:.9375rem}.tab.active{background:#e8f0ff;color:#155eef;font-weight:700}.tab:hover{background:#edf3fc}.role-lead{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;margin-bottom:25px;padding:25px 28px;background:white;border:1px solid #dfe7f1;border-left:4px solid #155eef;border-radius:10px}.role-lead p{margin-top:7px}.mini-list{list-style:none;padding:0;margin:0}.mini-list li{padding:14px 0;border-bottom:1px solid #edf0f5;font-size:.9375rem}.mini-list li:last-child{border:0}.mini-list a{display:flex;align-items:center;justify-content:space-between;gap:12px}.footer{padding:15px 36px 24px;color:#748397;font-size:.75rem;display:flex;justify-content:space-between;gap:15px}.bottom-nav{display:none}.tree{list-style:none;padding-left:20px;border-left:1px solid #dde6f2;margin:12px 0}.tree>li{margin:10px 0}.tree a{display:inline-block;padding:5px 0;color:#285789}.tree .badge{margin-left:8px}.full-bleed{max-width:1160px}.public-nav{display:flex;gap:15px;align-items:center}.public-header{background:white;border-bottom:1px solid #e1e7ef;padding:20px max(24px,calc((100vw - 1160px)/2));display:flex;justify-content:space-between;gap:20px;align-items:center}.public-header .brand{color:#173456}.public-header .brand small{color:#6b7f99}.public-header .brandmark{background:#0b1f3a}.landing-head{margin:15px 0 30px}.landing-head h1{font-size:2.3rem;margin:8px 0 12px}.landing-head p{max-width:700px}.public-main{padding:32px 24px 55px;max-width:1208px;margin:auto}.landing-grid .card{min-height:205px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:100%;background:#139e75;margin-right:7px}.boundary{padding:18px 0;font-size:.875rem;color:#61748c;border-top:1px solid #e3e9f1;margin-top:25px}.mobile-nav-roles{display:none}
@media(min-width:1500px){.main{padding-top:36px}.card{padding:26px}}
@media(max-width:1100px){.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.main{padding:24px}.topbar{padding:16px 24px}.layout{grid-template-columns:200px minmax(0,1fr)}.sidebar{padding:25px 12px}.split{grid-template-columns:1fr}.hero{align-items:flex-start}.public-main{padding-top:24px}}
@media(max-width:720px){h1{font-size:1.65rem}.preview{font-size:.75rem;padding:7px 12px}.layout{display:block;min-height:calc(100svh - 50px)}.sidebar{display:none}.topbar{padding:12px 16px;min-height:66px;gap:8px}.top-title{display:none}.mobile-brand{display:block;font-size:1.05rem;font-weight:750}.role-picker{gap:5px}.role-picker>span{display:none}.role-picker select{font-size:.8125rem;padding:8px;max-width:150px;min-height:42px}.main{padding:19px 16px 24px}.breadcrumbs{font-size:.75rem;margin-bottom:18px}.page-head{margin-bottom:19px;display:block}.page-head>.badge{margin-top:10px}.page-head p{font-size:.875rem}.grid,.grid.two{grid-template-columns:1fr}.grid.four{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid.four .card{padding:16px;gap:10px}.grid.four .card h3{font-size:1rem}.grid.four .card .tile-icon{width:37px;height:37px}.card{padding:20px}.hero{display:block;padding:23px}.hero h2{font-size:1.35rem}.hero-actions{margin-top:19px;justify-items:start}.hero-actions .btn{width:100%}.hero-actions small{text-align:left}.split{gap:15px;margin-top:18px}.section{margin-top:23px}.section-heading{align-items:flex-start}.section-heading .muted{font-size:.75rem}.panel{padding:19px}.empty{padding:25px 6px}.footer{padding:15px 16px 95px;font-size:.75rem;display:block}.footer span{display:block;margin-bottom:5px}.bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:20;background:#fff;border-top:1px solid #dae3ef;padding:6px 8px calc(6px + env(safe-area-inset-bottom));box-shadow:0 -4px 18px #12325b06}.bottom-nav a{display:grid;justify-items:center;gap:3px;padding:5px 0;min-height:50px;font-size:.75rem;color:#667991}.bottom-nav a.active{color:#155eef;font-weight:700}.bottom-nav .nav-icon{font-size:.75rem;width:22px;height:22px}.tabs{gap:3px;margin-top:20px}.tab{padding:9px 10px;font-size:.8125rem}.flow{gap:8px}.flow span{font-size:.8125rem;padding:9px 11px}.role-lead{padding:20px;display:block}.role-lead .btn{margin-top:15px}.public-header{padding:15px 16px}.public-nav .muted{display:none}.public-main{padding:22px 16px 30px}.landing-head{margin:3px 0 22px}.landing-head h1{font-size:1.85rem}.landing-grid .card{min-height:200px}.public-header .brand{font-size:1.05rem}.public-header .brand small{font-size:.625rem}.brandmark{width:32px;height:32px}.mobile-nav-roles{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}.mobile-nav-roles a{font-size:.8125rem;padding:8px 11px;background:white;border:1px solid #dbe4ef;border-radius:7px}.tree{padding-left:14px}.tree a{font-size:.875rem}.tree .badge{display:block;width:fit-content;margin-left:0}.note{font-size:.8125rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}.card.link:hover{transform:none}}

/* Student-first home. Other role entry points remain secondary. */
.student-header-nav{display:flex;align-items:center;gap:25px;font-size:.875rem;color:#4e6580}
.student-header-nav a{padding:9px 0}.student-header-nav a:hover{color:#155eef}
.other-entries{position:relative;font-size:.875rem;color:#536982;z-index:30}
.other-entries summary{cursor:pointer;min-height:44px;display:list-item;list-style-position:inside;padding:10px 12px;border:1px solid #dce4ed;border-radius:7px;background:#fff;white-space:nowrap}
.other-entries[open] summary{color:#155eef;border-color:#9dbcf0}
.entry-panel{position:absolute;right:0;top:calc(100% + 9px);width:240px;max-width:calc(100vw - 32px);padding:9px;background:#fff;border:1px solid #dfe7f0;border-radius:10px;box-shadow:0 12px 32px #122c4c20;display:grid;gap:3px}
.entry-panel a{padding:11px 13px;border-radius:6px;color:#2b4562;min-height:44px}
.entry-panel a:hover{background:#eff4ff;color:#155eef}.entry-panel small{border-top:1px solid #e8edf4;padding:10px 12px 4px;color:#76849a;font-size:.75rem;line-height:1.7}
.student-welcome{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,1fr);gap:55px;align-items:center;padding:30px 0 34px;border-bottom:1px solid #dfe6ef}
.student-welcome h1{font-size:2.65rem;line-height:1.3;letter-spacing:-.035em;margin:9px 0 16px}
.student-welcome p{max-width:560px;margin-bottom:24px;font-size:1rem}
.welcome-shortcuts{padding:24px;background:#edf3fb;border:1px solid #dce6f3;border-radius:12px}
.welcome-shortcuts h2{font-size:1rem;margin-bottom:8px}.welcome-shortcuts a{display:flex;align-items:center;gap:13px;padding:17px 0;border-bottom:1px solid #d6e0ed}.welcome-shortcuts a:last-child{border:0;padding-bottom:0}.welcome-shortcuts a>span:nth-child(2){flex:1}
.welcome-shortcuts strong{font-size:.9375rem;font-weight:650;color:#284362}.welcome-shortcuts small{display:block;margin-top:3px;color:#62758c;font-size:.8125rem}
.welcome-shortcuts .nav-icon{width:34px;height:34px;border-color:#b8cbe4;color:#2a61a8;background:white}
.welcome-shortcuts a:hover strong{color:#155eef}.home-project{min-height:210px}
.home-note{font-size:.8125rem;color:#748399;margin-top:24px}
@media(max-width:1100px){.student-header-nav{gap:16px}.student-welcome{gap:30px}.home-projects .grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:850px){.student-header-nav{display:none}.student-welcome{gap:24px}.student-welcome h1{font-size:2.25rem}}
@media(max-width:720px){.public-header .brand small{display:none}.public-header .public-nav{gap:12px}.other-entries summary{padding:9px;font-size:.8125rem}.student-welcome{grid-template-columns:1fr;gap:24px;padding:10px 0 25px}.student-welcome h1{font-size:2rem}.student-welcome p{font-size:.9375rem}.student-welcome .btn{min-width:170px}.welcome-shortcuts{padding:18px 20px}.welcome-shortcuts a{padding:13px 0}.home-projects .grid{grid-template-columns:1fr}.home-project{min-height:0}.public-main{padding-bottom:35px}}

/* 3005-style category rows: direct subject and service entries. */
.catalog-main{max-width:1480px;padding-top:32px}
.catalog-intro{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr);align-items:center;gap:48px;padding:12px 0 32px;border-bottom:1px solid #cfd8e5}
.catalog-intro h1{font-size:clamp(1.8rem,3vw,2.8rem);letter-spacing:-.04em;line-height:1.3;margin:10px 0 0;color:#101b2e}
.catalog-intro p{font-size:.9375rem;line-height:1.9}
.catalog-section{margin-top:32px}
.catalog-section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;border-bottom:1px solid #cfd8e5;padding-bottom:14px;margin-bottom:20px}
.catalog-section-head h2{font-size:1.8rem;line-height:1.3;margin-top:6px;color:#101b2e}
.catalog-section-head>span{font-size:.875rem;color:#526782;text-align:right;white-space:nowrap}
.catalog-section-head small{display:block;font-size:.75rem;color:#63748b;margin-top:3px}
.catalog-row{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 48px)/4);gap:16px;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x proximity;padding:4px 2px 22px;scrollbar-width:thin;scrollbar-color:#9cacbf #e7edf5}
.catalog-card{display:flex;flex-direction:column;min-width:0;min-height:315px;border:1px solid #dce4ee;border-radius:9px;padding:23px;background:#f7f9fc;color:#596b82;scroll-snap-align:start;transition:border-color .16s,box-shadow .16s}
.catalog-card:hover,.catalog-card:focus-visible{border-color:#8297b3;box-shadow:0 8px 24px #142c4910}
.catalog-card-top{display:flex;justify-content:space-between;align-items:start;margin-bottom:25px}
.catalog-card .tile-icon{background:#edf1f6;color:#63758d;width:46px;height:46px;font-size:1.25rem}
.catalog-number{font-size:.875rem;font-weight:750;color:#74849a}
.catalog-status{font-size:.8125rem;font-weight:700;margin-bottom:9px}
.catalog-card h3{font-size:1.3rem;line-height:1.5;letter-spacing:-.02em;margin:0 0 14px;color:#4d5f77}
.catalog-card p{font-size:.9375rem;line-height:1.85;margin-bottom:25px}
.catalog-card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:18px;border-top:1px solid #e1e7ef;margin-top:auto;font-size:.8125rem;font-weight:650}
.catalog-card.is-live{background:#fff;border-color:#94a6bf;box-shadow:0 10px 24px #19334d0d}
.catalog-card.is-live .tile-icon{background:#eafbf3;color:#008557}
.catalog-card.is-live .catalog-status,.catalog-card.is-live .catalog-card-foot>span:last-child{color:#008557}
.catalog-card.is-live h3{color:#111e31}
@media(min-width:1320px){.catalog-row{grid-auto-columns:calc((100% - 64px)/5)}}
@media(max-width:1000px){.catalog-row{grid-auto-columns:calc((100% - 32px)/3)}.catalog-intro{gap:25px;grid-template-columns:1.6fr 1fr}}
@media(max-width:720px){.catalog-intro{grid-template-columns:1fr;gap:12px;padding:4px 0 24px}.catalog-intro h1{font-size:1.85rem}.catalog-intro p{font-size:.9375rem}.catalog-section{margin-top:26px}.catalog-section-head h2{font-size:1.45rem}.catalog-row{grid-auto-columns:min(78vw,310px);gap:12px;scroll-snap-type:x mandatory}.catalog-card{padding:22px;min-height:315px}.catalog-section-head>span{font-size:.8125rem}.catalog-main{padding-bottom:30px}}

/* Mathematics and Chinese learning models share the English-style workspace. */
.learning-model{font-size:1rem}
.lab-notice{padding:12px 15px;background:#fff8e8;border:1px solid #ead7a7;border-radius:8px;color:#72551d;font-size:.875rem;line-height:1.8}
.lab-tabs{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;padding-bottom:10px}
.lab-start{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:27px 28px;background:#0b1f3a;border-radius:12px;color:white}
.lab-start h2{font-size:1.5rem;line-height:1.5;margin:8px 0}.lab-start p{color:#c5d5e9}.lab-start .eyebrow{color:#a5c6ff}.lab-start .btn{flex-shrink:0}
.lab-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0}
.lab-stats>div{border:1px solid #dce5ef;padding:18px 20px;background:white;border-radius:10px}
.lab-stats span{display:block;font-size:.875rem;color:#61748d}.lab-stats strong{display:block;font-size:1.6rem;color:#183a60;margin-top:6px}
.lab-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.lab-actions button,.lab-actions a{min-height:44px}
.lab-muted{font-size:.875rem;color:#60738a;line-height:1.9;margin-top:14px}
.lab-unit-list{display:grid;margin-top:16px}.lab-unit-list>a,.lab-unit-list>div,.lab-unit-list>details{border-top:1px solid #e4eaf2;padding:14px 0}
.lab-unit-list>a,.lab-unit-list>div{display:flex;justify-content:space-between;gap:12px}
.lab-unit-list small{font-size:.8125rem;color:#64778f}.lab-unit-list summary{cursor:pointer;min-height:30px}.lab-unit-list details p{margin-top:12px}
.lab-pending{padding:18px 20px;margin-top:22px;border:1px dashed #b6c6dc;background:#f0f5fc;border-radius:8px;font-size:.875rem;color:#546c87}
.lab-pending summary{cursor:pointer;font-weight:650;min-height:25px}.lab-pending p{margin-top:10px}.lab-pending ul{padding-left:22px;line-height:2}
.lab-exercise-layout{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,1.5fr);gap:20px;margin-top:20px;align-items:start}
.lab-material,.lab-question-pane{max-height:76vh;overflow-y:auto;overscroll-behavior:contain}
.lab-material p{line-height:2;margin:16px 0}.lab-material hr{border:0;border-top:1px solid #e0e6ef;margin:24px 0}
.lab-question{border:0;border-bottom:1px solid #e2e9f2;margin:0 0 24px;padding:0 0 24px;min-width:0}
.lab-question legend{padding:0;max-width:100%;margin-bottom:16px;width:100%}
.lab-question legend strong{display:block;font-size:1.075rem;line-height:1.9;margin-top:8px}
.lab-options{display:grid;gap:10px}.lab-options label{display:flex;align-items:start;gap:10px;border:1px solid #d7e1ef;border-radius:8px;padding:13px 15px;cursor:pointer;min-height:48px}
.lab-options label:has(input:checked){background:#edf4ff;border-color:#155eef;color:#154b9d}
.lab-options input{margin:5px 0 0;accent-color:#155eef;flex-shrink:0}
.lab-field{display:grid;gap:9px;font-size:.9375rem;line-height:1.8}
.lab-field input,.lab-field textarea{width:100%;border:1px solid #b8c8dc;border-radius:8px;padding:12px;font:inherit;color:#173456;background:white;min-height:46px}
.lab-field textarea{resize:vertical;line-height:1.8}.lab-error{color:#b42318;min-height:1em;margin-top:12px;font-size:.9375rem}
.lab-answer{border:1px solid #d7e1ee;border-left:4px solid #879dbc;border-radius:8px;padding:18px;background:#f4f7fc;overflow-wrap:anywhere}
.lab-answer p{margin-top:12px;line-height:1.9}.lab-answer.correct{border-left-color:#087f5b;background:#f0fbf6}.lab-answer.incorrect{border-left-color:#b42318;background:#fff6f5}
.lab-answer.correct>strong{color:#087247}.lab-answer.incorrect>strong{color:#ad271b}
.lab-diff{display:flex;flex-wrap:wrap;gap:9px;margin-top:15px}
.lab-diff>span{display:grid;justify-items:center;padding:9px;min-width:37px;border-radius:5px;font-size:1.2rem}
.lab-diff small{font-size:.75rem}.char-ok{color:#067647;background:#e6f5ed}.char-bad{color:#a52016;background:#ffe9e5}
.lab-record-list{margin-top:16px}.lab-record-list article{padding:20px 0;border-top:1px solid #e0e7f0;display:flex;justify-content:space-between;gap:24px}
.lab-record-list article>div{min-width:0}.lab-record-list p{margin:7px 0}.lab-record-list small{color:#60738a;font-size:.8125rem}
.lab-record-list .lab-actions{margin-top:0;flex-shrink:0;align-content:center;max-width:260px}
.lab-flashcard{padding:28px;margin:22px 0;background:#f2f6fd;border:1px solid #cbdbee;border-radius:12px}
.lab-flashcard h3{margin:12px 0}.lab-reveal{padding:24px 0;font-size:1.55rem;line-height:2;color:#183d68}.lab-reveal p{font-size:.9375rem;line-height:1.9}
.lab-plan{max-width:340px}.lab-path{margin-top:22px;padding:24px;background:#f4f7fc;border-radius:8px}.lab-path h3{margin:10px 0}.lab-path ol{padding-left:22px;line-height:2}
@media(max-width:1000px){.lab-exercise-layout{grid-template-columns:1fr}.lab-material,.lab-question-pane{max-height:none;overflow:visible}.lab-record-list article{display:block}.lab-record-list .lab-actions{max-width:none;margin-top:14px}}
@media(max-width:720px){.learning-model .page-head h1{font-size:1.5rem}.lab-notice{font-size:.8125rem}.lab-start{display:block;padding:22px}.lab-start h2{font-size:1.3rem}.lab-start>.btn{margin-top:17px;width:100%}.lab-stats{gap:8px}.lab-stats>div{padding:12px 10px}.lab-stats span{font-size:.75rem}.lab-stats strong{font-size:1.15rem}.lab-exercise-layout{gap:14px}.lab-flashcard{padding:20px}.lab-unit-list>a,.lab-unit-list>div{flex-wrap:wrap}.lab-tabs .tab{font-size:.875rem}.lab-field input,.lab-field textarea{font-size:1rem}}