@import url("solution-colors.css?v=20261024");
/* System fonts avoid blocking the interface on a remote font service. */
:root{--ink:#243126;--muted:#899087;--green:#3b6549;--deep:#294f38;--pale:#edf3e9;--line:#e7e9e1;--bg:#f7f8f3;--orange:#c57c42;--shadow:0 12px 40px #263d2610}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px 'Noto Sans SC','Microsoft YaHei',sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:var(--green);text-decoration:none}svg{width:20px;height:20px;flex-shrink:0}button{border:0;background:none;color:inherit}button.primary,.primary{background:var(--green);color:white;border:1px solid var(--green);border-radius:8px;padding:11px 17px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:550}button.primary:hover{background:var(--deep)}.secondary{border:1px solid #dce1d6;border-radius:8px;background:white;padding:10px 15px;display:inline-flex;align-items:center;gap:7px}.secondary:hover{background:#f2f5ee}.text-btn{color:var(--green);font-weight:550;padding:7px}.danger{color:#a94d43}.small{font-size:12px}.muted{color:var(--muted)}.tag{display:inline-flex;align-items:center;padding:4px 8px;border-radius:5px;background:var(--pale);color:#5f7750;font-size:11px;white-space:nowrap}.tag.orange{background:#fcf0e4;color:#b77b41}.tag.gray{background:#f0f1ed;color:#7d857b}.tag.blue{background:#ecf1f8;color:#657e9d}.pill{border-radius:50px;padding:5px 10px}.flex{display:flex;align-items:center;gap:10px}.between{display:flex;align-items:center;justify-content:space-between;gap:12px}.stack{display:grid;gap:16px}.empty{padding:60px 22px;text-align:center;color:#8b9485;line-height:2}.empty svg{width:40px;height:40px;color:#aebda4;margin-bottom:12px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:8px;font-size:12px;font-weight:550}.field.full{grid-column:1/-1}.field input,.field textarea,.field select,input.input,select.input{width:100%;padding:11px 12px;border:1px solid #dfe4d8;background:white;border-radius:7px;color:var(--ink);font-weight:400}.field textarea{resize:vertical;min-height:85px;line-height:1.8}.field input:focus,.field textarea:focus{border-color:#7d9b69}.notice{padding:12px 15px;border-radius:8px;background:#f2f4ed;color:#737e69;font-size:12px;line-height:1.9}.notice.warn{background:#fff5e9;color:#a77a45}.icon-btn{display:inline-flex;padding:7px;align-items:center;border-radius:7px}.icon-btn:hover{background:var(--pale)}
/* login */
.login{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;background:#fcfcf8}.login-art{background:#e9efdf;position:relative;padding:48px 10%;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}.brand{display:flex;gap:11px;align-items:center}.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--green);color:white;display:grid;place-items:center;font-family:Georgia,serif;font-size:30px;font-style:italic}.brand strong{font-size:19px;letter-spacing:1px}.brand small{display:block;font-size:9px;letter-spacing:2.6px;margin-top:3px;color:#809176}.login-art h1{font-size:48px;font-weight:550;letter-spacing:1px;line-height:1.55;margin-bottom:20px}.login-art h1 em{font-style:normal;color:#6b8457}.login-art p{line-height:2;color:#7b8a71}.math-art{height:230px;position:relative;margin:20px 0;background:linear-gradient(transparent 31px,#78926018 32px),linear-gradient(90deg,transparent 31px,#78926018 32px);background-size:32px 32px}.math-art:before{content:'x² + y² = r²';position:absolute;font:italic 33px Georgia;color:#8b9d7b;top:38px;left:6%}.math-art:after{content:'△';position:absolute;font:180px Georgia;color:#91a77c;right:10%;top:10px;transform:rotate(-12deg)}.login-form{width:min(400px,85%);margin:auto;padding:50px 0}.login-form h2{font-size:27px;font-weight:650;margin:25px 0 8px}.login-form>p{color:var(--muted);font-size:13px;line-height:1.8}.role-picks{display:flex;gap:7px;padding:5px;background:#f0f2e9;border-radius:9px;margin:27px 0}.role-picks button{flex:1;padding:10px 4px;border-radius:6px;color:#7f8975}.role-picks button.active{background:white;box-shadow:0 2px 8px #2538220c;color:var(--green);font-weight:600}.demo-box{margin-top:24px;padding:15px;border:1px dashed #d9e0ce;border-radius:8px;font-size:11px;color:#89937e;line-height:1.9}.demo-box button{color:var(--green);text-decoration:underline;font-size:12px}.login-error{font-size:12px;color:#af5a4d;min-height:20px}.auth-tabs{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:25px}.auth-tabs button{padding:12px 0;color:#8c9586}.auth-tabs button.active{color:var(--green);border-bottom:2px solid var(--green)}
/* shell */
.sidebar{position:fixed;left:0;top:0;bottom:0;width:224px;padding:31px 19px 18px;background:#f1f3ea;border-right:1px solid #e4e7dc;display:flex;flex-direction:column;z-index:30}.sidebar .brand{padding:0 10px;margin-bottom:39px}.sidebar .brand-mark{width:34px;height:34px}.sidebar .brand strong{font-size:17px}.space-label{font-size:10px;letter-spacing:1.2px;color:#929d86;padding:0 15px;margin-bottom:12px}.nav{display:grid;gap:5px}.nav button{text-align:left;display:flex;align-items:center;gap:13px;padding:12px 15px;border-radius:8px;color:#7c8973;font-size:13px}.nav button.active{background:#e0e9d5;color:var(--deep);font-weight:600}.nav button:hover{background:#e7ecde}.nav .badge{margin-left:auto;min-width:21px;text-align:center;background:#d5dfc9;font-size:10px;border-radius:4px;padding:2px 5px}.sidebar-bottom{margin-top:auto}.space-card{padding:15px 12px;background:#e7edde;border:1px solid #dce5cf;border-radius:9px;font-size:11px;line-height:1.9;color:#849374;margin-bottom:20px}.space-card b{display:block;color:#536d45;font-size:12px;margin-bottom:5px}.profile{display:flex;align-items:center;gap:10px;padding:9px}.avatar{width:34px;height:34px;background:#e1e7d5;color:#6d8259;display:grid;place-items:center;border-radius:50%;font-size:13px}.profile strong{font-size:12px;font-weight:600}.profile small{display:block;font-size:10px;color:#9aab8b;margin-top:3px}.profile .icon-btn{margin-left:auto}.main{margin-left:224px;min-height:100vh}.topbar{height:76px;border-bottom:1px solid var(--line);padding:0 38px;display:flex;align-items:center;justify-content:space-between;background:#fbfcf8}.breadcrumb{font-size:12px;color:#989f93;display:flex;gap:11px;align-items:center}.breadcrumb strong{color:#617056;font-weight:500}.top-actions{display:flex;align-items:center;gap:20px;font-size:11px;color:#8e9983}.status-dot{width:6px;height:6px;background:#7c9b60;border-radius:50%;display:inline-block;margin-right:6px}.content{max-width:1450px;margin:0 auto;padding:32px 38px 70px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:27px}.eyebrow{color:#929b88;font-size:10px;letter-spacing:1.6px;margin-bottom:9px}.page-heading h1{font-size:25px;font-weight:650;letter-spacing:.4px;margin:0 0 10px}.page-heading p{font-size:12px;color:#939b8b;margin:0;line-height:1.8}.panel{background:#fff;border:1px solid var(--line);border-radius:11px}.panel-title{padding:20px 23px;display:flex;align-items:center;justify-content:space-between;gap:12px}.panel-title h2{font-size:15px;font-weight:600;margin:0}.panel-title p{margin:5px 0 0;font-size:11px;color:var(--muted)}.welcome{background:#eaf0e2;border:1px solid #dfe7d4;border-radius:12px;display:flex;align-items:center;justify-content:space-between;padding:26px 30px;margin-bottom:24px;overflow:hidden;position:relative}.welcome h2{font-weight:600;font-size:22px;margin:0 0 12px}.welcome p{color:#87957b;font-size:12px;margin:0 0 20px}.welcome-art{height:140px;min-width:220px;position:relative;color:#9eae8a}.welcome-art:before{content:'√x';position:absolute;right:12px;top:7px;font:italic 85px Georgia;transform:rotate(-10deg);opacity:.6}.welcome-art:after{content:'a² + b² = c²';position:absolute;bottom:14px;left:0;font:italic 23px Georgia;opacity:.7}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:17px;margin-bottom:26px}.stat{padding:21px 23px;position:relative}.stat .stat-icon{position:absolute;right:20px;top:22px;width:35px;height:35px;border-radius:10px;background:#f1f5eb;color:#80956b;display:grid;place-items:center}.stat-label{font-size:11px;color:#8b9582}.stat-value{font-family:Georgia,serif;font-size:34px;margin:10px 0 8px;letter-spacing:1px}.stat small{color:#99a28e;font-size:10px}.stat small b{color:#799060;font-weight:500}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);gap:22px}.shortcuts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:0 22px 23px}.shortcut{text-align:left;border:1px solid #e8ecdf;border-radius:8px;padding:18px;background:#fcfdf9}.shortcut svg{color:#7e9668;margin-bottom:13px}.shortcut b{display:block;font-size:12px;font-weight:550}.shortcut span{font-size:10px;color:#9ca58f;display:block;margin-top:7px}.steps{padding:0 23px 20px;display:grid;gap:17px}.step{display:flex;gap:13px;align-items:start}.step-number{width:25px;height:25px;border-radius:50%;background:#edf2e5;color:#82996c;display:grid;place-items:center;font-size:11px;flex-shrink:0}.step b{font-size:12px;font-weight:550}.step p{font-size:10px;color:#9aa38e;line-height:1.8;margin:5px 0 0}.activity{border-top:1px solid var(--line);padding:16px 23px;display:flex;gap:12px;align-items:center}.activity .avatar{width:31px;height:31px;font-size:11px}.activity p{margin:0;font-size:12px}.activity small{font-size:10px;color:#9ca590}.activity .tag{margin-left:auto}.sample-note{font-size:10px;color:#a5ad9b;margin-top:17px;display:flex;gap:7px;align-items:center}
/* question bank */
.bank-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:22px;align-items:start}.filters{padding:20px 22px}.search{display:flex;align-items:center;border:1px solid #e0e5d8;border-radius:8px;padding:0 12px;background:#fbfcf9;gap:8px}.search svg{width:16px;color:#98a18e}.search input{border:0;background:none;padding:12px 0;width:100%;color:var(--ink);font-size:12px;outline:none}.filter-line{display:flex;align-items:center;gap:8px;margin-top:15px;flex-wrap:wrap;font-size:11px}.filter-line>span{width:40px;color:#9ba38f}.filter-chip{padding:6px 11px;border-radius:6px;color:#939c87}.filter-chip.active{background:#eaf0df;color:#5e774b;font-weight:550}.filter-selects{display:flex;gap:10px;margin-top:16px}.filter-selects select{font-size:11px;padding:8px 10px;min-width:100px;border:1px solid #e3e7db;border-radius:6px;background:white;color:#7b886e}.list-bar{padding:15px 21px;display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#98a08e}.list-bar label{display:flex;gap:8px;align-items:center}input[type=checkbox]{accent-color:var(--green);width:15px;height:15px;cursor:pointer}.question-card{margin-bottom:14px;padding:20px 22px;border:1px solid var(--line);border-radius:10px;background:white;transition:border-color .2s}.question-card.selected{border-color:#a1b48d;background:#fdfefb}.q-top{display:flex;align-items:center;gap:8px;margin-bottom:17px}.q-id{font-size:10px;color:#abb39e;margin-left:auto}.question-body{line-height:2;font-size:14px;white-space:pre-wrap;word-break:break-word;letter-spacing:.2px}.q-bottom{border-top:1px solid #f0f1eb;margin-top:17px;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;color:#9aa38c}.q-actions{display:flex;gap:12px;align-items:center}.q-actions button{font-size:11px;color:#8b987c;display:flex;align-items:center;gap:5px}.q-actions button svg{width:14px;height:14px}.q-actions button.added{color:#65814d}.answer-panel{margin-top:15px;border-top:1px dashed #dce4d0;padding-top:13px;line-height:1.9;font-size:12px;color:#718264;white-space:pre-wrap}.cart{position:sticky;top:20px}.cart-head{padding:18px 17px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px}.cart-head svg{color:#74915c;width:18px}.cart-count{margin-left:auto;background:#ebf0e2;color:#758b60;font-size:10px;padding:3px 7px;border-radius:4px}.cart-body{max-height:430px;overflow:auto;padding:10px 16px}.cart-item{padding:13px 0;border-bottom:1px solid #eef0e8}.cart-item:last-child{border-bottom:none}.cart-item-title{font-size:11px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}.cart-item-controls{display:flex;align-items:center;gap:6px;color:#8e9e7e;font-size:10px}.cart-item-controls input{width:42px;border:1px solid #e1e7d8;padding:4px;border-radius:4px;font-size:10px}.cart-item-controls button{padding:3px}.cart-item-controls svg{width:12px;height:12px}.cart-footer{padding:16px;border-top:1px solid var(--line)}.cart-footer .primary{width:100%;font-size:12px;padding:11px;margin-top:12px}.cart-total{display:flex;justify-content:space-between;font-size:11px;color:#8c987e}.cart-total strong{color:#647a50;font-weight:600}.cart-empty{text-align:center;padding:35px 6px;color:#a4af97;font-size:11px;line-height:2}.cart-empty svg{width:33px;height:33px;color:#a4b88c;margin:0 auto 12px;display:block}.cart-hint{font-size:10px;line-height:1.9;color:#a6ae9a;padding:14px 3px}.bank-note{font-size:10px;color:#9ca68e;text-align:center;padding:17px}
/* lists / modals */
.cards-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.resource-card{padding:23px;display:flex;flex-direction:column;gap:14px}.resource-icon{width:42px;height:48px;background:#edf2e5;border-radius:8px;color:#7b9263;display:grid;place-items:center}.resource-card h3{font-size:14px;line-height:1.8;font-weight:600;margin:0}.resource-meta{font-size:11px;color:#97a18b;display:flex;gap:14px;flex-wrap:wrap}.resource-card footer{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:11px}.table-wrap{overflow:auto}.table{border-collapse:collapse;width:100%;font-size:12px}.table th{background:#f8faf4;color:#8c987e;font-size:10px;font-weight:500;text-align:left;padding:14px 21px;border-block:1px solid var(--line)}.table td{padding:18px 21px;border-bottom:1px solid #eef0e8;white-space:nowrap}.table tr:last-child td{border-bottom:0}.assignment-card{padding:22px;display:flex;align-items:center;gap:18px;margin-bottom:14px}.assignment-card h3{font-size:14px;margin:0 0 11px}.assignment-card .right{margin-left:auto;display:grid;justify-items:end;gap:10px}.modal-overlay{position:fixed;inset:0;background:#1c2d2265;backdrop-filter:blur(3px);z-index:100;display:grid;place-items:center;padding:25px}.modal{background:#fcfdf9;border-radius:13px;box-shadow:0 25px 100px #17231d30;width:640px;max-width:100%;max-height:92vh;overflow:auto}.modal.wide{width:1020px}.modal-header{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;padding:20px 25px;background:#fcfdf9;border-bottom:1px solid var(--line)}.modal-header h2{font-size:17px;margin:0;font-weight:600}.modal-content{padding:25px}.modal-actions{display:flex;justify-content:flex-end;align-items:center;gap:10px;padding-top:22px}.purpose-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}.purpose-option{border:1px solid #e0e5d6;background:white;padding:18px 8px;border-radius:8px;text-align:center;font-size:12px}.purpose-option svg{display:block;margin:0 auto 10px;color:#84996c}.purpose-option.active{border-color:#92a87a;background:#ecf2e3;color:#5a7447}.upload-zone{border:1px dashed #b8c6a7;border-radius:9px;background:#f4f7ed;text-align:center;padding:32px 15px;cursor:pointer;display:block;line-height:2;color:#8b9c78;font-size:12px}.upload-zone svg{width:30px;height:30px;display:block;margin:0 auto 10px}.upload-zone input{display:block;margin:12px auto 0;max-width:100%;font-size:11px}.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}.split-layout iframe{width:100%;height:62vh;border:1px solid var(--line);border-radius:7px;background:#e9ecdf}.draft-item{padding:14px;border:1px solid #e1e6d8;border-radius:8px;background:white;margin-top:10px}.draft-item textarea{width:100%;border:1px solid #e4e9dc;border-radius:5px;min-height:90px;font:inherit;font-size:12px;line-height:1.8;padding:10px}.draft-item .saved{color:#7c965e;font-size:11px}.answer-question{padding:20px 0;border-bottom:1px solid var(--line)}.answer-question .field{margin-top:14px}.grade-answer{padding:12px 15px;border-radius:7px;background:#edf2e6;font-size:12px;line-height:1.9;white-space:pre-wrap;margin-top:12px}.inline-check{display:flex;gap:8px;align-items:center;font-size:12px;color:#839174}.score{font:32px Georgia;color:#75935a}.settings-sections{display:grid;gap:20px;max-width:900px}.settings-sections .panel{padding:25px}.settings-sections h3{font-size:14px;margin:0 0 15px}.settings-sections p{font-size:12px;line-height:1.9;color:#8b967f}.menu-toggle{display:none}#toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px);opacity:0;background:#304d36;color:#fff;border-radius:9px;box-shadow:var(--shadow);padding:13px 23px;font-size:12px;z-index:200;transition:.2s;pointer-events:none;max-width:90vw}#toast.show{opacity:1;transform:translate(-50%,0)}#toast.error{background:#9d594a}.loading{padding:100px 20px;text-align:center;color:#9ba88f;font-size:13px}.loading:before{content:'';display:block;width:25px;height:25px;border:2px solid #e1e8d7;border-top-color:#819c65;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 15px}@keyframes spin{to{transform:rotate(360deg)}}.print-paper{background:white;padding:30px;line-height:1.9}.print-paper h1{text-align:center;font-size:24px}.print-info{text-align:center;border-bottom:1px solid #ddd;padding:15px;font-size:12px}.print-question{white-space:pre-wrap;padding:24px 0;break-inside:avoid;font-size:15px}.print-question .space{height:100px}.mobile-cart-button{display:none}
@media(min-width:1600px){.content{padding-top:40px}.question-card{padding:24px 28px}.bank-layout{grid-template-columns:minmax(0,1fr) 300px}}
@media(max-width:1150px){.sidebar{width:192px;padding-inline:13px}.main{margin-left:192px}.content{padding:26px 24px}.topbar{padding:0 24px}.bank-layout{grid-template-columns:minmax(0,1fr) 242px;gap:16px}.stats{gap:12px}.stat{padding:18px}.stat .stat-icon{display:none}.cards-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.welcome-art{min-width:160px}.q-bottom{align-items:flex-start;flex-direction:column;gap:12px}.q-actions{align-self:flex-end}.top-actions .space-name{display:none}}
@media(max-width:800px){.sidebar{transform:translateX(-100%);transition:.2s;width:224px;box-shadow:var(--shadow)}.sidebar.open{transform:translateX(0)}.main{margin-left:0}.topbar{height:62px;padding:0 18px}.menu-toggle{display:flex}.breadcrumb{gap:8px}.top-actions{gap:8px}.top-actions .date{display:none}.content{padding:24px 17px 70px}.page-heading{align-items:flex-start}.page-heading h1{font-size:22px}.page-heading .flex{gap:6px}.page-heading .secondary{padding:9px}.page-heading .primary{font-size:11px;padding:11px}.bank-layout{display:block}.cart{position:relative;top:0;margin-top:25px}.cart-body{max-height:350px}.stats{grid-template-columns:1fr 1fr;gap:12px}.stat-value{font-size:29px}.stat{padding:17px}.welcome{padding:23px}.welcome h2{font-size:19px}.welcome-art{display:none}.shortcuts{padding:0 15px 18px;gap:8px}.shortcut{padding:13px 10px}.shortcut span{line-height:1.8}.cards-grid{grid-template-columns:1fr 1fr;gap:12px}.resource-card{padding:17px}.question-card{padding:17px}.q-top{gap:6px;flex-wrap:wrap}.filter-selects{flex-wrap:wrap}.filter-selects select{min-width:80px;flex:1}.modal-overlay{padding:12px}.modal-content{padding:20px}.modal-header{padding:18px 20px}.split-layout{grid-template-columns:1fr}.split-layout iframe{height:300px}.form-grid{gap:12px}.assignment-card{align-items:flex-start;flex-wrap:wrap}.assignment-card .right{display:flex;align-items:center;width:100%;justify-content:flex-end}.login{grid-template-columns:1fr}.login-art{display:none}.login-form{padding-top:30px}.login-form:before{content:'π数学 / MATH STUDIO';color:#6e8658;font-size:12px;letter-spacing:2px}.purpose-picker{gap:7px}.purpose-option{font-size:11px;padding:15px 5px}.resource-meta{gap:8px}.mobile-cart-button{display:flex;position:fixed;bottom:20px;right:20px;padding:13px 18px;border-radius:30px;background:#3b6549;color:white;box-shadow:var(--shadow);z-index:20;gap:8px;align-items:center}}
@media(max-width:440px){.page-heading{flex-wrap:wrap}.cards-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.stat small{font-size:9px}.top-actions .tag{display:none}.question-body{font-size:13px}.q-id{display:none}}
[hidden]{display:none!important}
/* Keep account controls reachable on short tablet viewports. */
.sidebar{overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.sidebar>.brand,.sidebar>.space-label,.sidebar>.nav,.sidebar>.sidebar-bottom{flex-shrink:0}
#switch-account{min-height:44px;padding:8px 12px;white-space:nowrap;font-size:13px;touch-action:manipulation}
#logout{min-width:44px;min-height:44px;flex-shrink:0}
@media(max-width:800px){.top-actions .space-name{display:none}}
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.vector-page{height:calc(100dvh - 140px);min-height:360px;border:1px solid #d6deea;border-radius:12px;overflow:hidden;background:white}.vector-page #vector-workspace{height:100%;width:100%}.vector-draw-modal .modal-header{display:none}.modal.vector-draw-modal{width:98vw;height:96dvh;max-width:none}.vector-draw-modal .modal-content{border-radius:12px}
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@media(max-width:700px){.question-card{padding:18px 16px;border-radius:16px}.question-card .question-body,.question-detail-text{font-size:17px}.q-actions{gap:7px}.q-actions button{font-size:12px;padding:8px}.solution-fold summary{font-size:17px}}
.library-frame .question-solutions{align-items:flex-start;gap:6px 18px}
.library-frame .question-solutions .solution-fold{margin:0}
.library-frame .question-solutions .solution-fold summary,.library-frame .question-solutions .question-inline-handwriting{box-sizing:border-box;font-family:inherit;font-size:12px;font-weight:500;line-height:20px;padding:5px 0;margin:0;min-height:30px}
.library-frame .question-solutions .question-inline-handwriting{display:inline-flex;align-items:center;align-self:flex-start;color:#86937b;white-space:nowrap}

/* Give tall formula glyphs room above the scroll viewport, and align left. */
.question-body .katex-display,.question-detail-text .katex-display,.formula-preview .katex-display,.print-question .katex-display{padding:12px 2px 14px;margin:4px 0;text-align:left;overflow-x:auto;overflow-y:hidden}
.question-body .katex-display>.katex,.question-detail-text .katex-display>.katex,.formula-preview .katex-display>.katex,.print-question .katex-display>.katex{text-align:left}
.visual-stem-editor{min-height:170px;max-height:60vh;overflow:auto;border:1px solid #dce4d3;border-radius:8px;padding:16px;background:#fff;font:18px/1.9 'Times New Roman','SimSun',serif;white-space:pre-wrap;color:#263044;cursor:text}
.visual-stem-editor:focus-within{outline:2px solid #9bb49d;outline-offset:1px}
.visual-stem-editor math-field{font-size:20px;min-width:32px;border:1px solid transparent;background:transparent;padding:8px 2px;--caret-color:#3b6549;--selection-background-color:#d9e8d6;vertical-align:middle;max-width:100%}
.visual-stem-editor math-field:focus-within{border-color:#b9ccb5;border-radius:5px;background:#fbfdf8}
.visual-stem-editor .visual-display-math{display:block;width:100%;text-align:left;margin:2px 0}
.visual-stem-editor math-field::part(menu-toggle),.visual-stem-editor math-field::part(virtual-keyboard-toggle){display:none}
/* A single reading size for bank controls and question text. */
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.standalone-cart .complete-question-preview .question-body{font-size:17px;line-height:1.9}.cart-preview-number{display:block;color:#7b8871;font-size:15px;margin-bottom:12px}
.standalone-cart .complete-question-preview{display:block;-webkit-line-clamp:unset;overflow:visible;font-size:17px;line-height:1.9}.complete-question-preview .question-body{white-space:pre-wrap}.complete-question-preview img{max-width:100%;height:auto}.complete-question-preview .question-figures img{max-height:none}.complete-cart-card{border-bottom:1px solid var(--line)}.publish-audience{border:1px solid var(--line);border-radius:8px;padding:15px;display:grid;gap:10px}.audience-checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:8px;max-height:300px;overflow:auto}.audience-checks label{display:flex;align-items:center;gap:10px;padding:12px;background:#f3f6ee;border-radius:6px;cursor:pointer}.audience-checks input{width:20px;height:20px}.classes-panel{margin-bottom:22px}.class-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;padding:0 22px 22px}.class-cards article{display:flex;flex-wrap:wrap;gap:14px;align-items:center;padding:18px;border:1px solid var(--line);border-radius:8px}.class-cards article>b{width:100%;font-size:18px}
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.stem-figure-token{display:inline-block;padding:1px 8px;margin:0 4px;border:1px solid #c7d7bd;border-radius:5px;background:#edf3e9;color:#3b6549;font:14px/1.8 sans-serif;user-select:all}
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body:has(.library-frame){--library-text-size:16px}
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body:has(.library-frame) #content .question-card>.question-body{line-height:1.85}
body:has(.library-frame) #content .question-body .katex{font-size:1em}
body:has(.library-frame) #content .question-solutions :is(summary,.question-inline-handwriting){line-height:27px;min-height:37px;padding:5px 0}
body:has(.library-frame) #content .tree-row{min-height:42px}
body:has(.library-frame) #content .filter-line{flex-wrap:wrap}
body:has(.library-frame) #content .filter-selects select{max-width:100%}
body:has(.library-frame) .topbar :is(span,a,b){font-size:var(--library-text-size)}
body:has(.library-frame) #content .filter-line>span{font-size:var(--library-text-size)}
body:has(.library-frame) #content .filter-selects{flex:1 1 480px}
body:has(.library-frame) #content .filters button{white-space:nowrap;flex-shrink:0}
body:has(.library-frame) .page-heading h1{font-size:18px}
/* Distinguish folder levels, including when a directory is selected. */
#content #folder-tree [aria-level="1"]>.tree-row :is(.tree-name,.tree-name>span){color:#202520;font-size:16px}
#content #folder-tree [aria-level="2"]>.tree-row :is(.tree-name,.tree-name>span){color:#183e73;font-family:'KaiTi','STKaiti','楷体',serif;font-size:15px}
#content #folder-tree [aria-level="3"]>.tree-row :is(.tree-name,.tree-name>span){color:#793f98;font-family:'KaiTi','STKaiti','楷体',serif;font-size:15px}
#content #folder-tree .tree-row :is(.tree-name,.tree-name>span,.tree-name>small),#content #folder-tree .tree-root-row button{font-weight:700}
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.quick-input-popup{position:fixed;z-index:1400;overflow:auto;padding:14px;background:#fffef9;border:1px solid #cfdcc3;border-radius:12px;box-shadow:0 10px 35px #253b3026;color:#42573c}.quick-input-popup>b{display:block;margin-bottom:10px;font-size:14px}.quick-dictionary-items{display:flex;flex-wrap:wrap;gap:7px}.quick-dictionary-items>span{display:inline-flex;align-items:center}.quick-dictionary-items button{font-size:13px;min-height:34px;padding:5px 9px}.quick-dictionary-add{display:grid;gap:7px;margin-top:12px;border-top:1px solid #e0e8d8;padding-top:10px}.quick-dictionary-add input,.quick-dictionary-add textarea{padding:6px 8px;font-size:13px;min-height:32px}.quick-dictionary-add>button{justify-self:start}.quick-fraction-grid{display:flex;flex-direction:column;gap:5px}.quick-fraction-grid>div{display:flex;gap:4px;align-items:center;flex-wrap:wrap;border-bottom:1px solid #edf0e7;padding-bottom:4px}.quick-fraction-grid small{width:58px;flex:none;color:#8b987f;font-size:11px}.quick-fraction{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:34px;min-height:42px;padding:3px 5px;border:1px solid #e1e8d8;border-radius:5px;background:#f9fbf5;color:#43583a;font:15px/1.1 'Times New Roman',serif}.quick-fraction>span:first-child{border-bottom:1px solid currentColor;padding:0 4px 2px}.quick-fraction>span:last-child{padding-top:2px}.quick-fraction:hover{background:#e6efd9;border-color:#a6bf8d}
.unified-math-toolbar .editor-voice-input[aria-pressed=true]{background:#a8534c;color:white;border-color:#a8534c}.voice-input-status{font-size:11px;color:#718262;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;align-self:center}
.question-solutions .solution-fold.has-analysis>summary{color:#2563eb}
.question-solutions .solution-fold.has-answer>summary{color:#dc2626}
.question-solutions .solution-fold.has-analysis>summary::marker,.question-solutions .solution-fold.has-answer>summary::marker{color:currentColor}
.visual-stem-editor[data-editor-section="answer"],.solution-answer{color:#dc2626}
.visual-stem-editor[data-editor-section="answer"] math-field{color:inherit!important}
.visual-stem-editor[data-editor-section="answer"] math-field::part(content){color:inherit}
.solution-answer .katex,.solution-answer .katex *{color:inherit}
.card-choice-option>b,.choice-option-row>b{font-style:normal!important;font-family:Arial,"Microsoft YaHei",sans-serif!important}
.quick-dictionary-items button[data-dictionary-delete][hidden]{display:none!important}
.quick-dictionary-items>span{max-width:100%;align-items:center}
.quick-dictionary-items>span>button:first-child{white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;text-align:left;touch-action:manipulation;user-select:none}

.question-solutions .solution-fold.has-hand-answer-only>summary{color:#ec4899}

#question-form.formula-selection-mode math-field{pointer-events:none;user-select:all;-webkit-user-select:all}#question-form.formula-selection-mode .visual-stem-editor{cursor:text}#question-form .quick-selected-formula{background:#dbeafe;border-radius:3px}.unified-math-toolbar [data-select-formula][aria-pressed=true]{background:#dce9d3;color:#325a37;border-color:#829c70}

/* Keep mathematical spacing intact; add breathing room at prose boundaries. */
.question-body .katex,.question-detail-text .katex,.solution-analysis .katex,.print-question .katex{margin-inline:.12em;letter-spacing:normal;word-spacing:normal}.question-body .katex-display,.question-detail-text .katex-display{margin:.7em 0}.question-body .katex .katex,.question-detail-text .katex .katex{margin-inline:0}

.question-solutions>.card-cart-button{display:inline-flex!important;margin-left:auto!important;white-space:nowrap}.netpad-interactives{margin:10px 0}.netpad-panel{margin:8px 0;border:1px solid #dce5d4;border-radius:8px;overflow:hidden}.netpad-panel>summary{cursor:pointer;padding:9px 12px;color:#456a38;font-size:14px;background:#f3f7ef}.netpad-frame{display:block;width:100%;height:480px;border:0;background:white}@media(max-width:700px){.netpad-frame{height:360px}}

.raster-paste-area{margin:14px 0;padding:12px;border:1px solid #dce5d4;border-radius:8px}.raster-paste-area>.flex{margin:8px 0}.raster-paste-target{padding:12px;border:1px dashed #a6b99b;border-radius:6px;color:#66765d}.raster-paste-target:focus{outline:2px solid #a6b99b}.raster-paste-previews figure{margin:10px 0}.raster-paste-previews img{display:block}.raster-paste-previews input{max-width:240px}

/* Formulas share the surrounding text line; focus is shown by the caret. */
.visual-stem-editor math-field,.visual-stem-editor math-field:focus-within{border:0!important;border-radius:0!important;background:transparent!important;box-shadow:none!important;outline:none!important;padding:0!important;margin:0 1px;min-width:0;font-size:1em}
.visual-stem-editor math-field::part(container){border:0!important;outline:0!important;box-shadow:none!important;padding:0}

.document-question-editor .question-document-paper{grid-column:1/-1;background:white;border:1px solid #d8dde3;padding:24px 28px;box-shadow:0 2px 9px #17283b0a;min-width:0}
.document-question-editor .question-document-paper .editor-section{display:block!important;border:0!important;box-shadow:none!important;border-radius:0!important;background:transparent!important;padding:8px 0!important;margin:0!important}
.document-question-editor .question-document-paper .visual-stem-editor{border:0!important;border-radius:0!important;box-shadow:none!important;background:transparent!important;padding:6px 0!important;min-height:60px;outline:0!important}
.document-question-editor .question-document-paper .editor-section-heading{border-bottom:1px dashed #d9dee5;margin:4px 0!important;padding:4px 0!important}
.document-question-editor .question-document-paper .editor-section-heading h3{font-size:14px;color:#63778a}
.document-tool-tabs,.document-context-tools{display:flex;gap:6px;flex-wrap:wrap;width:100%}.document-tool-tabs button,.document-context-tools button{padding:5px 12px;border:0;border-radius:5px;background:transparent;cursor:pointer}.document-tool-tabs button.on{background:#e4eedf;color:#34552d}.document-context-tools{padding:4px 0}.document-question-editor .question-document-paper .analysis-step-row{border:0;background:transparent}.document-question-editor .question-document-paper .compact-editor-attachments{border:0;background:transparent}
@media(max-width:700px){.document-question-editor .question-document-paper{padding:12px}}

.compact-tool-header:has(.document-tool-tabs){display:flex!important;flex-wrap:wrap!important;align-items:center;min-width:0;overflow:visible}
.compact-tool-header:has(.document-tool-tabs) .unified-math-toolbar{flex:0 0 100%!important;width:100%!important;max-width:100%;min-width:0;flex-wrap:wrap!important;overflow:visible!important;white-space:normal!important}
.compact-tool-header:has(.document-tool-tabs) .editor-tool-panel{position:static!important;max-width:100%!important;width:auto!important;flex-wrap:wrap!important;white-space:normal!important;box-shadow:none;box-sizing:border-box}
.compact-tool-header:has(.document-tool-tabs) .editor-tool-group{flex-wrap:wrap;max-width:100%;min-width:0}
.compact-tool-header:has(.document-tool-tabs) .editor-tool-panel:not([hidden]){display:flex!important;flex-basis:100%}
.document-context-tools,.document-figure-actions,.document-figure-chooser{display:flex;flex-wrap:wrap;gap:6px;max-width:100%;min-width:0;box-sizing:border-box}.document-figure-actions{flex-basis:100%}.document-figure-actions .illustration-controls,.document-figure-actions .inline-figure-actions{display:flex;flex-wrap:wrap;gap:6px;max-width:100%;margin:0}.document-figure-actions input[type=range]{max-width:150px}.document-figure-chooser .on{background:#e4eedf}.document-question-editor .raster-paste-area[hidden]{display:none!important}.document-question-editor .document-pending-figures{display:flex;flex-wrap:wrap}.document-question-editor .document-pending-figures figure{max-width:100%}

.unified-math-toolbar[data-document-mode=formula] .editor-tool-group>button{display:none!important}
.unified-math-toolbar[data-document-mode=formula] .editor-tool-panel[hidden]{display:flex!important;flex-wrap:wrap!important;position:static!important}
.unified-math-toolbar[data-document-mode=formula] .editor-tool-group{display:contents!important}
.unified-math-toolbar[data-document-mode]:not([data-document-mode=formula])>[hidden]{display:none!important}

.formula-template-gallery{width:100%;min-width:0;border-top:1px solid #e1e6ec;padding-top:5px}.formula-template-categories,.formula-template-grid{display:flex;flex-wrap:wrap;gap:5px;max-width:100%}.formula-template-categories{padding-bottom:6px}.formula-template-categories button.on{background:#e4eedf}.formula-template-grid button{border:1px solid #dfe5ec;background:#fff;padding:5px 9px;min-height:32px}.formula-template-grid{padding-bottom:6px}

.formula-template-grid button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-width:74px;font-size:11px}.formula-template-preview{display:block;font-size:16px;padding:4px;pointer-events:none}.formula-template-preview .katex{font-size:1em}

/* Compact document ribbon: category row plus template row. */
.compact-tool-header:has(.document-tool-tabs) .unified-math-toolbar[data-document-mode=formula]{display:none!important}
.compact-tool-header:has(.document-tool-tabs) .document-tool-tabs{gap:3px;align-items:center;flex-wrap:wrap;padding:0;margin:0}
.document-tool-tabs>button,.document-tool-tabs .formula-template-categories button{font-size:12px!important;padding:3px 7px!important;min-height:26px!important;margin:0!important}
.document-tool-tabs .formula-template-categories{display:flex;flex-wrap:wrap;gap:2px;padding:0;margin-left:6px;border-left:1px solid #d9dfe5}
.document-context-tools{padding:2px 0!important;gap:3px!important}.formula-template-gallery{border:0;padding:0}.formula-template-grid{gap:3px;padding:0;align-items:center}.formula-template-grid button{font-size:10px!important;min-width:38px;min-height:32px;max-height:48px;padding:2px 5px!important;gap:0;overflow:hidden}.formula-template-preview{font-size:13px;padding:0;max-height:27px;overflow:hidden}

.document-editable-table{border-collapse:collapse;table-layout:fixed;min-width:240px;max-width:100%;margin:10px 0;color:inherit;font-size:inherit}.document-editable-table td{border:1px solid #75818e;min-width:65px;height:32px;padding:6px 10px;vertical-align:middle;white-space:pre-wrap;overflow-wrap:anywhere}.visual-stem-editor .document-editable-table td:focus-within{background:#f3f7fb}.document-editable-table math-field{font-size:1em}

/* Keep accent-bearing math on the text baseline, regardless of accent height. */
.visual-stem-editor math-field{vertical-align:baseline!important}
.modal-header:has(.document-tool-tabs){position:sticky;top:0;z-index:30;flex-shrink:0;background:#fcfdf9;box-shadow:0 3px 8px #253b3014;padding-right:48px!important;min-height:0!important;row-gap:4px!important;align-content:start!important}
.modal-header:has(.document-tool-tabs)>[data-close]{position:absolute!important;top:10px!important;right:12px!important;margin:0!important;width:30px!important;height:30px!important;min-height:30px!important;flex:none!important;padding:4px!important}
.modal-header:has(.document-tool-tabs)>h2{margin:0 0 4px!important}

.document-legacy-shortcuts{display:flex;flex-wrap:wrap;gap:3px;align-items:center;margin-left:5px;padding-left:5px;border-left:1px solid #d9dfe5;max-width:100%}.document-legacy-shortcuts button{font-size:11px!important;padding:3px 6px!important;min-height:25px!important;border:1px solid #dce5d8!important;border-radius:4px;background:#f3f7ef;white-space:nowrap}

.visual-stem-editor math-field{margin-left:0!important;margin-right:0!important;letter-spacing:normal!important;word-spacing:normal!important;width:auto!important}
.visual-stem-editor .analysis-rich-step math-field,.visual-stem-editor.analysis-rich-step math-field,.visual-stem-editor[data-editor-section=analysis] math-field{color:#2563eb!important}
.visual-stem-editor[data-editor-section=answer] math-field{color:#dc2626!important}
.visual-stem-editor math-field::part(container),.visual-stem-editor math-field::part(content){padding:0!important;margin:0!important;min-height:0!important}

.vertical-generator-dialog{width:min(940px,94vw);max-height:88vh;overflow:auto;border:1px solid #cbd5e1;border-radius:10px;padding:16px}.vertical-generator-dialog header{display:flex;justify-content:space-between;align-items:center}.vertical-generator-dialog label{display:inline-flex;gap:6px;align-items:center;margin:8px}.vertical-generator-dialog input[name=expression]{width:min(430px,65vw);padding:6px}.vertical-generator-previews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.vertical-generator-previews section{border:1px solid #d9e1e9;border-radius:6px;padding:12px;display:flex;flex-direction:column;gap:12px;min-width:0;overflow:auto}.vertical-generator-previews math-field{font-size:22px;max-width:100%}@media(max-width:650px){.vertical-generator-previews{grid-template-columns:1fr}}

.vertical-generator-previews math-field{font-family:"Times New Roman",serif;min-height:190px;overflow:visible}.vertical-generator-previews math-field::part(menu-toggle),.vertical-generator-previews math-field::part(virtual-keyboard-toggle){display:none}

/* Compact tables: retain only the text/formula line box. */
.document-editable-table{margin:0!important}
.document-editable-table td{height:1em!important;padding:0 8px!important;line-height:1.1!important}
.document-editable-table td p,.document-editable-table td div{margin:0;padding:0;line-height:inherit}

.vertical-generator-previews section{gap:8px;padding:10px}
.vertical-generator-previews math-field{font-size:20px;min-height:145px;padding:8px;border:1px solid #d6dbe1;border-radius:4px;background:#fff}
.vertical-generator-dialog input[name=expression]{font-size:16px}

.modal-header:has(.quick-input-inline) .document-context-tools,.modal-header:has(.quick-input-inline)>.unified-math-toolbar{display:none!important}
.quick-input-popup.quick-input-inline{position:static;flex:0 0 100%;width:100%;max-width:100%;max-height:min(340px,45vh);box-sizing:border-box;box-shadow:none;border-radius:5px;padding:8px;margin-top:4px;z-index:auto}
.quick-input-inline .quick-fraction-grid>div{gap:3px}


.hand-answer-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.hand-answer-tabs button{padding:5px 12px;font-size:13px;border:1px solid #d3dec9;border-radius:5px;background:#f8faf6}
.hand-answer-tabs button.on{background:#e3eddc;border-color:#8ca779;color:#314e25}
.hand-answer-panels>figure[hidden]{display:none!important}
.hand-answer-panels>figure{margin:0}


.hand-answer-tabs .hand-answer-tab-name{width:130px;max-width:45vw;padding:0 3px;margin:0;min-height:0;font:inherit;color:inherit;line-height:inherit}

.visual-stem-editor math-field.text-range-selected{background:#b9d5fa!important;box-shadow:0 0 0 1px #91baf0!important;border-radius:2px}
.visual-stem-editor::selection,.visual-stem-editor *::selection{background:#b9d5fa;color:inherit}

/* Preserve typed indentation in editable text and rendered question rows. */
.visual-stem-editor,.question-body .question-local-line,.question-body .question-exercise-cell{white-space:pre-wrap;tab-size:4}

#question-form.formula-selection-mode .visual-stem-editor{caret-color:#26354a} .document-tool-tabs [data-text-selection][aria-pressed=true]{background:#b9d5fa;color:#163b6c}

mark[data-text-highlight]{color:inherit;border-radius:2px;padding:0 .08em;box-decoration-break:clone;-webkit-box-decoration-break:clone}.document-tool-tabs [data-highlight-color]{font-size:12px;min-height:28px;max-width:110px}

.question-body .question-option-letter,.card-choice-option>b .question-latin{font-style:normal!important;font-family:Arial,"Microsoft YaHei",sans-serif!important}

/* Compact the two spaces surrounding the question stem. */
#question-list .question-card>.q-top{margin-bottom:8px!important;padding-bottom:0!important}
#question-list .question-card>.question-body{margin-top:8px!important;padding-top:0!important}
#question-list .question-card>.question-body .katex-display{padding-top:6px;padding-bottom:7px;margin-top:2px;margin-bottom:2px}
#question-list .question-card>.question-solutions{margin-top:9px!important}
/* Display formula plus a source newline must not create a second empty line. */
.visual-stem-editor math-field.visual-display-math{display:inline-block!important;width:auto!important;max-width:100%;margin:0!important;vertical-align:middle}
/* Card formulas share the existing text line breaks; avoid duplicate block gaps. */
#question-list .question-card>.question-body .katex-display{display:inline-block;vertical-align:middle;padding:0;margin:0;max-width:100%;text-align:left}

.analysis-step-row.single-analysis-step .analysis-step-shortcuts{grid-column:1/-1}

/* Choice labels and text share the requested typeface; figures align to labels. */
.card-choice-option,.card-choice-option>b,.card-choice-option .choice-text,.card-choice-option .question-latin,.card-choice-option .question-digit,.choice-option-row>b,.choice-option-row textarea,.choice-option-row .visual-stem-editor{font-family:"Times New Roman","SimSun",serif!important}
.card-choice-option{align-items:center!important}
.card-choice-option .question-figures,.card-choice-option figure{margin-top:0!important;margin-bottom:0!important}
.card-choice-option img{vertical-align:middle}

@import url("solution-colors.css?v=20261024");
.ho-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:15px}.ho-toolbar input{flex:1;min-width:180px;font-weight:600}.ho-toolbar #ho-status{font-size:12px;color:#788575}.ho-workspace{display:grid;grid-template-columns:245px minmax(0,1fr);gap:18px;align-items:start}.ho-sidebar{background:#fff;border:1px solid #dce5d4;border-radius:12px;padding:16px;position:sticky;top:12px;max-height:calc(100vh - 100px);overflow:auto}.ho-sidebar h3{font-size:14px;margin:12px 0 8px}.ho-sidebar label{display:flex;flex-direction:column;gap:4px;font-size:12px;margin:8px 0}.ho-sidebar select,.ho-sidebar input,.ho-sidebar textarea{width:100%;min-width:0;font-size:13px;padding:7px}.ho-sidebar textarea{resize:vertical;min-height:90px}.ho-add,.ho-block-actions,.ho-block-style{display:grid;grid-template-columns:1fr 1fr;gap:6px}.ho-sidebar button{font-size:12px;padding:7px}.ho-settings{border-top:1px solid #e1e8db;margin-top:18px;padding-top:14px}.ho-settings summary{cursor:pointer;font-weight:600}.ho-outline-item{display:block;width:100%;text-align:left;margin:4px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:transparent;border:1px solid transparent}.ho-outline-item.active{background:#edf4e7;border-color:#c2d4b5}.ho-desk{background:#e7ebe5;border-radius:12px;padding:20px 24px;overflow:auto;max-height:calc(100vh - 160px)}.ho-paper-note{font:12px system-ui;color:#697668;margin-bottom:14px;position:sticky;left:0}#ho-pages{font-family:var(--ho-cn,"SimSun"),serif;color:#1e2926;width:210mm;margin:0 auto}.ho-page{box-sizing:border-box;width:210mm;height:297mm;background:#fff;position:relative;margin-bottom:20px;box-shadow:0 4px 22px #253e361a;overflow:hidden}.ho-page-content{height:100%;display:flow-root}.ho-page-number{position:absolute;bottom:7mm;left:0;right:0;text-align:center;color:#9ba39c;font:10pt "Times New Roman",serif}.ho-block{position:relative;margin:0 0 4mm;cursor:pointer;white-space:pre-wrap;overflow-wrap:anywhere;outline:1px solid transparent;outline-offset:3px}.ho-block:hover{outline-color:#c0d2b6}.ho-block.ho-selected{outline-color:#8ea780}.ho-title{font-size:24pt;font-weight:bold;text-align:center;color:#244f42;padding:7mm 4mm 6mm;border-top:2px solid #366a55;border-bottom:1px solid #ccdbd1;letter-spacing:1px}.ho-subtitle{font-size:16pt;font-weight:bold;color:#365e76;padding:2mm 4mm;border-left:4px solid #5b8ca1;background:#edf3f6;border-radius:0 6px 6px 0}.ho-knowledge{background:#f3f7f1;border:1px solid #dce8d5;border-radius:9px;padding:4mm 5mm;color:#334639}.ho-latin{font-family:var(--ho-latin,"Times New Roman"),serif;font-style:italic}.ho-number{font-family:var(--ho-num,"Times New Roman"),serif;font-style:normal}.ho-question .question-body{font:inherit;white-space:pre-wrap}.ho-badge{display:table;margin-bottom:2mm;padding:1mm 4mm;border-radius:5px 12px 12px 5px;font:bold 11pt/1.5 "KaiTi","SimSun",serif;color:#fff;background:#417665;letter-spacing:1px;border-left:3px solid #224e40}.ho-question[data-category="练习题"] .ho-badge{background:#477e9e;border-color:#2c5873}.ho-question[data-category="课后作业"] .ho-badge{background:#b38043;border-color:#815622}.ho-question[data-category="挑战题"] .ho-badge{background:#826597;border-color:#594168}.ho-question .question-figures{display:block;margin-top:2mm}.ho-question figure{margin:2mm 0;break-inside:avoid}.ho-question img{max-width:100%;height:auto}.ho-question .card-choice-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2mm 5mm;margin-top:2mm;white-space:normal}.ho-question .card-choice-option{display:flex;align-items:baseline;gap:2mm}.ho-question .card-choice-option b{font:normal 1em "Times New Roman",serif}.ho-too-tall{outline:2px solid #bf5a45!important}.ho-too-tall:before{content:'此内容块超出一页，请拆分或缩小';display:block;color:#bf5a45;font:12px system-ui}.ho-pick-item{display:flex;gap:12px;padding:15px;border-bottom:1px solid #e0e8d9;align-items:flex-start}.ho-pick-item>input{width:18px;margin-top:6px}.ho-pick-item>span{flex:1;min-width:0}.ho-pick-body{display:block;white-space:pre-wrap}.ho-pick-item img{max-width:260px;max-height:180px;object-fit:contain}.ho-pick-item figcaption{display:none}.ho-print-frame{position:fixed;left:-10000px;top:0;width:210mm;height:297mm;border:0}.ho-print-document{margin:0;background:#fff}.ho-print-document .ho-block{outline:0;cursor:default}.ho-print-document .ho-page{margin:0;box-shadow:none;break-after:page}.ho-print-document .ho-page:last-child{break-after:auto}
@page{size:A4 portrait;margin:0}@media print{html,body{margin:0!important;padding:0!important}#ho-pages{margin:0}.ho-page{margin:0;box-shadow:none;break-after:page}.ho-block{outline:0!important}.ho-page:last-child{break-after:auto}}
@media(max-width:1000px){.ho-workspace{grid-template-columns:210px minmax(0,1fr)}.ho-desk{padding:12px}.ho-sidebar{padding:10px}}@media(max-width:700px){.ho-workspace{display:flex;flex-direction:column}.ho-sidebar{position:static;width:100%;max-height:360px}.ho-desk{width:100%;max-height:75vh}.ho-toolbar input{flex-basis:100%}}
.ho-question figure,.ho-pick-item figure{border:0;background:transparent;padding:0}.ho-sidebar>h3:first-child{margin-top:0}
/* Five independent styles for every handout heading, note and question label. */
.ho-question{--ho-accent:#417665;--ho-tint:#edf5f0}.ho-question[data-category="练习题"]{--ho-accent:#477e9e;--ho-tint:#eef5fa}.ho-question[data-category="课后作业"]{--ho-accent:#ad7937;--ho-tint:#fbf4e9}.ho-question[data-category="挑战题"]{--ho-accent:#826597;--ho-tint:#f5effa}
.ho-title[data-appearance="ribbon"]{background:#315f50;color:#fff;border:0;border-radius:4px 20px 4px 20px;padding:6mm;letter-spacing:2px}
.ho-subtitle[data-appearance="ribbon"]{color:white;background:#4c7890;border:0;border-radius:3px 16px 16px 3px;padding:2.5mm 5mm}
.ho-knowledge[data-appearance="ribbon"]{background:#edf5f0;border:0;border-left:5px solid #588473;border-radius:0 12px 12px 0}
.ho-question[data-appearance="ribbon"] .ho-badge{background:var(--ho-accent);border:0;border-radius:0;padding:1.2mm 6mm 1.2mm 3mm;clip-path:polygon(0 0,100% 0,calc(100% - 3mm) 50%,100% 100%,0 100%)}
.ho-title[data-appearance="outline"]{background:transparent;border:2px solid #476d5d;outline:1px solid #b9cdbe;outline-offset:-6px;border-radius:3px;padding:6mm}
.ho-subtitle[data-appearance="outline"]{background:transparent;border:1.5px solid #6b8d9e;border-radius:7px;padding:2mm 4mm}
.ho-knowledge[data-appearance="outline"]{background:transparent;border:1.5px dashed #86a28f;border-radius:9px}
.ho-question[data-appearance="outline"] .ho-badge{background:transparent;color:var(--ho-accent);border:1.5px solid var(--ho-accent);border-radius:6px;padding:1mm 4mm}
.ho-title[data-appearance="editorial"]{background:transparent;border:0;border-bottom:4px double #30483e;border-radius:0;padding:3mm 0 5mm;text-align:left;letter-spacing:3px;color:#253e36}
.ho-subtitle[data-appearance="editorial"]{background:transparent;border:0;border-top:1px solid #9baaa1;border-bottom:1px solid #9baaa1;border-radius:0;padding:2mm 0;color:#334e43}
.ho-knowledge[data-appearance="editorial"]{background:#f7f5ef;border:0;border-top:2px solid #b4a380;border-bottom:1px solid #d2c6ad;border-radius:0}
.ho-question[data-appearance="editorial"] .ho-badge{background:transparent;color:var(--ho-accent);border:0;border-left:4px solid var(--ho-accent);border-radius:0;padding:0 3mm;font-size:12pt}
.ho-title[data-appearance="minimal"]{background:transparent;border:0;border-radius:0;color:#253e36;padding:5mm 0;letter-spacing:4px;font-weight:500}
.ho-subtitle[data-appearance="minimal"]{background:transparent;border:0;border-radius:0;color:#425b4e;padding:1.5mm 0;font-weight:600}
.ho-knowledge[data-appearance="minimal"]{background:transparent;border:0;border-left:2px solid #d3dfd4;border-radius:0;padding:2mm 4mm}
.ho-question[data-appearance="minimal"] .ho-badge{background:var(--ho-tint);color:var(--ho-accent);border:0;border-radius:20px;padding:1mm 4mm;font-weight:500}
.ho-style-picker{border:0;padding:0;margin:14px 0;display:grid;grid-template-columns:1fr 1fr;gap:7px;min-width:0}.ho-style-picker legend{font-size:12px;font-weight:600;margin-bottom:7px}.ho-style-option{display:flex;flex-direction:column;align-items:stretch;gap:5px;border:1px solid #dbe5d4;border-radius:8px;background:#fff;min-width:0;padding:6px!important;cursor:pointer}.ho-style-option.active{border-color:#4d795d;box-shadow:0 0 0 1px #4d795d;background:#f5f9f1}.ho-style-option small{font:11px system-ui;color:#697a6b}.ho-style-sample{display:flex;align-items:center;justify-content:center;min-height:34px;margin:0!important;padding:5px!important;font-size:10px!important;line-height:1.5!important;letter-spacing:0!important;pointer-events:none;overflow:hidden;white-space:nowrap;text-align:center!important;box-sizing:border-box}.ho-style-sample .ho-badge{font-size:10px!important;line-height:1.5;margin:0;padding:2px 8px!important}.ho-style-sample.ho-title[data-appearance="outline"]{outline:0}.ho-style-sample.ho-title[data-appearance="ribbon"]{border-radius:3px 9px 3px 9px}.ho-style-sample.ho-subtitle[data-appearance="ribbon"]{border-radius:3px 10px 10px 3px}
@media print{.ho-title[data-appearance="outline"]{outline:1px solid #b9cdbe!important;outline-offset:-6px}}
.ho-picker-modal{width:min(1220px,96vw)!important;max-width:96vw!important;height:min(880px,92vh);display:flex;flex-direction:column}.ho-picker-modal>.modal-content{display:flex;flex-direction:column;min-height:0;overflow:hidden}.ho-picker-modal .modal-header{flex-shrink:0}.ho-picker-modal #ho-search-form{flex-shrink:0;margin-bottom:12px}.ho-picker-modal #ho-search{flex:1;min-width:120px}.ho-picker-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:16px;flex:1;min-height:0}.ho-picker-folders{overflow:auto;border:1px solid #dbe5d4;border-radius:10px;padding:12px;background:#f8faf5}.ho-picker-folders h3{font-size:14px;margin:0 0 12px}.ho-picker-preview{display:flex;flex-direction:column;min-height:0;min-width:0;border:1px solid #dbe5d4;border-radius:10px;overflow:hidden}.ho-picker-preview #ho-pick-list{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:10px;background:#f6f8f3}.ho-picker-preview #ho-folder-path{padding:10px 14px;border-bottom:1px solid #e1e8dc;font-size:12px;color:#60725a;flex-shrink:0}.ho-picker-pager{padding:8px 12px;flex-shrink:0}.ho-picker-modal .modal-actions{flex-shrink:0;margin-top:12px}.ho-picker-tree-row{display:flex;align-items:center;min-height:36px;border-radius:6px}.ho-picker-tree-row.active,.ho-picker-all.active{background:#e0ecd7}.ho-picker-tree-row button{background:none;border:0;box-shadow:none;padding:6px 3px}.ho-picker-toggle{flex:0 0 23px;min-width:23px}.ho-picker-toggle:disabled{opacity:.5}.ho-picker-folder-name{flex:1;min-width:0;text-align:left;overflow-wrap:anywhere;font-size:13px}.ho-picker-folders [aria-level="1"]>.ho-picker-tree-row .ho-picker-folder-name{color:#202520;font-weight:600}.ho-picker-folders [aria-level="2"]>.ho-picker-tree-row .ho-picker-folder-name{color:#183e73;font:14px 'KaiTi','STKaiti',serif}.ho-picker-folders [aria-level="3"]>.ho-picker-tree-row .ho-picker-folder-name{color:#793f98;font:14px 'KaiTi','STKaiti',serif}.ho-picker-all{width:100%;text-align:left;border:0;background:none;padding:8px;font-size:13px;border-radius:6px}.ho-picker-preview .ho-pick-item{border:1px solid #e0e8d9;background:white;border-radius:8px;margin-bottom:10px;cursor:pointer;padding:14px}.ho-picker-preview .ho-pick-item.ho-picked{border-color:#7e9f68;background:#f8fcf5;box-shadow:0 0 0 1px #7e9f68}.ho-pick-card-content{min-width:0;flex:1}.ho-pick-card-content>b{display:block;font-size:12px;color:#7d8c72;margin-bottom:8px}.ho-picker-preview .ho-pick-body{font:17px/1.85 'SimSun',serif}.ho-picker-preview .question-figures figure{margin:10px 0}.ho-picker-preview .question-figures img{max-width:100%;max-height:300px;width:auto;object-fit:contain}.ho-picker-preview .card-choice-options{display:grid;gap:8px 16px;margin-top:10px}.ho-picker-preview .card-choice-option{display:flex;align-items:baseline;gap:8px}.ho-picker-empty{padding:30px;color:#839176;text-align:center}#ho-selected-count{font-size:12px;color:#4e7440;white-space:nowrap}
@media(max-width:700px){.ho-picker-layout{grid-template-columns:155px minmax(0,1fr);gap:8px}.ho-picker-folders{padding:7px}.ho-picker-modal>.modal-content{padding:12px}.ho-picker-preview .ho-pick-item{padding:9px;gap:7px}.ho-picker-preview .ho-pick-body{font-size:15px}.ho-picker-folder-name{font-size:12px}}
.ho-electronic-overlay{position:fixed;inset:0;z-index:1200;background:#e7ebe5;display:flex;flex-direction:column}.ho-electronic-toolbar{display:flex;align-items:center;gap:16px;padding:12px 20px;background:#fafcf7;border-bottom:1px solid #d4dece;flex-shrink:0}.ho-electronic-toolbar strong{flex:1}.ho-electronic-toolbar span{font-size:12px;color:#76866d}.ho-electronic-scroll{overflow:auto;flex:1;min-height:0;padding:22px;overscroll-behavior:contain}.ho-electronic-pages{width:210mm;margin:auto;font-family:var(--ho-cn,'SimSun'),serif}.ho-electronic-pages .ho-page{height:auto;min-height:297mm;overflow:visible;padding-bottom:18mm!important}.ho-electronic-pages .ho-page-content{height:auto;min-height:240mm}.ho-electronic-pages .ho-block{cursor:default;outline:0!important}.ho-electronic-pages [hidden]{display:none!important}.ho-electronic-live{display:block;max-width:100%;height:240px;border:0;background:transparent}.ho-electronic-analysis{margin-top:3mm;white-space:normal}.ho-electronic-analysis button{font:12px/1.5 system-ui;min-height:38px;margin-right:10px;padding:7px 13px;cursor:pointer}.ho-electronic-analysis .question-body{margin-top:3mm;padding:3mm 4mm;background:#f5f8f1;border-left:2px solid #a4bc90}.ho-electronic-pages .ho-page-number{display:none}@media(max-width:700px){.ho-electronic-toolbar{padding:8px 12px}.ho-electronic-toolbar span{display:none}.ho-electronic-scroll{padding:10px}.ho-electronic-pages{width:100%;max-width:210mm}.ho-electronic-pages .ho-page{width:100%;min-height:0;padding:16px!important}.ho-electronic-pages .ho-page-content{min-height:0}.ho-electronic-pages .ho-title{font-size:22px}.ho-electronic-pages .ho-subtitle{font-size:19px}}
/* Preserve label fills and use the same image geometry in screen and PDF. */
.ho-page,.ho-page *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
.ho-question img{display:block;max-height:none;object-fit:contain;box-sizing:content-box}
@media print{.ho-page,.ho-page *{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}.ho-question img{max-height:none!important;break-inside:avoid}}
.ho-question img{padding:0!important;border:0!important;border-radius:0;background:transparent}
.ho-note-capture .ho-ink-answer-space{background:transparent!important}.ho-note-crop-overlay{position:fixed;inset:3vh 3vw;background:#fafcf7;border:1px solid #d0dec5;border-radius:14px;box-shadow:0 0 0 100vmax #263e3488;z-index:1700;display:flex;flex-direction:column;overflow:hidden}.ho-note-crop-overlay header,.ho-note-crop-overlay footer{padding:14px 18px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;flex-shrink:0}.ho-note-crop-overlay header span,.ho-note-crop-status{font-size:12px;color:#75856c;flex:1}.ho-note-crop-scroll{overflow:auto;flex:1;min-height:0;padding:14px;background:#e7ece2}.ho-note-crop-stage{position:relative;display:table;margin:auto;touch-action:none;user-select:none;line-height:0;max-width:100%}.ho-note-crop-stage>img{display:block;width:auto;max-width:100%;max-height:65vh;object-fit:contain;pointer-events:none;background:#fff}.ho-note-crop-selection{position:absolute;border:2px solid #557c40;background:#7dba5633;box-sizing:border-box;pointer-events:none}.ho-note-saved-question{box-shadow:0 0 0 3px #7c9f61!important}
.ho-storage-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;align-items:start;min-height:65vh}.ho-storage-tree{background:#fff;border:1px solid #dce5d4;border-radius:12px;padding:14px;position:sticky;top:14px;min-width:0}.ho-storage-tree>.between{padding-bottom:12px;border-bottom:1px solid #e5ebdf;font-size:14px}.ho-storage-tree [role=tree]{margin:10px 0;max-height:65vh;overflow:auto;min-height:200px}.ho-storage-special{display:flex;justify-content:space-between;align-items:center;width:100%;padding:10px;border:0;background:none;text-align:left;color:#576d4b;border-radius:6px;font-size:14px}.ho-storage-special.active,.ho-storage-row.active{background:#e9f1e1}.ho-storage-special small,.ho-storage-row small{color:#8a9b7b;font-size:11px}.ho-storage-row{display:flex;align-items:center;min-height:40px;gap:4px;border-radius:6px;min-width:0}.ho-storage-row button{border:0;background:none;box-shadow:none;padding:5px 2px}.ho-storage-toggle{flex:0 0 18px;width:18px;color:#829474}.ho-storage-toggle:disabled{opacity:.5}.ho-storage-name{flex:1;min-width:0;text-align:left;overflow-wrap:anywhere;color:#273d32;font-size:14px}.ho-storage-tree [aria-level="2"]>.ho-storage-row .ho-storage-name{color:#234c79;font-family:'KaiTi','STKaiti',serif}.ho-storage-tree [aria-level="3"]>.ho-storage-row .ho-storage-name{color:#7d4b93;font-family:'KaiTi','STKaiti',serif}.ho-storage-menu{position:relative;flex:0 0 22px}.ho-storage-menu summary{cursor:pointer;list-style:none;text-align:center;color:#7e9272}.ho-storage-menu summary::-webkit-details-marker{display:none}.ho-storage-menu[open]{z-index:30}.ho-storage-menu>div{position:absolute;right:0;top:25px;background:#fff;border:1px solid #d7e2cd;border-radius:8px;box-shadow:0 8px 24px #263e3420;padding:6px;width:120px}.ho-storage-menu>div button{display:block;text-align:left;width:100%;font-size:12px;padding:8px}.ho-storage-menu>div button:hover{background:#eef4e8}#ho-tree-add{width:100%;font-size:12px}.ho-storage-content{min-width:0}.ho-storage-caption{padding:8px 0 16px;gap:12px}.ho-storage-caption>b{overflow-wrap:anywhere;font-size:15px}.ho-storage-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;align-items:start}.ho-storage-card{overflow:hidden;padding:16px!important;min-width:0}.ho-storage-cover{height:145px;padding:18px 20px;background:linear-gradient(140deg,#eff4e8,#f9fbf5);border:1px solid #e2e9d9;border-radius:8px;position:relative;display:flex;flex-direction:column;gap:10px;border-top:3px solid #73916a}.ho-storage-cover>span{font:10px system-ui;letter-spacing:1px;color:#829574}.ho-storage-cover>strong{font:600 19px/1.5 'SimSun',serif;color:#315842;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.ho-storage-cover>i{display:block;width:60%;border-bottom:1px solid #d8e2ce}.ho-storage-cover>i:last-child{width:40%}.ho-storage-card h3{font-size:16px;line-height:1.6;margin:14px 0 5px;overflow-wrap:anywhere}.ho-storage-card>p{font-size:11px;line-height:1.8;margin:0 0 12px}.ho-storage-card footer{display:flex;gap:8px 14px;flex-wrap:wrap;border-top:1px solid #e5ebde;padding-top:10px}.ho-storage-card footer button{font-size:11px;padding:3px 0}.ho-storage-empty{grid-column:1/-1;padding:65px 20px;text-align:center;border:1px dashed #d7e2cc;border-radius:12px;color:#8a9b7a;line-height:1.9;background:#fbfcf8}@media(max-width:850px){.ho-storage-layout{grid-template-columns:210px minmax(0,1fr);gap:12px}.ho-storage-cards{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}}@media(max-width:600px){.ho-storage-layout{display:block}.ho-storage-tree{position:static;margin-bottom:14px}.ho-storage-tree [role=tree]{max-height:250px;min-height:0}.ho-storage-cards{grid-template-columns:1fr}}
.ho-electronic-analysis{margin-top:3px!important;padding-top:0!important;white-space:normal}.ho-electronic-analysis>.question-body{margin:2px 0!important;padding:0!important;line-height:1.45}.ho-electronic-analysis>button{font-size:13px;min-height:30px;padding:4px 9px;margin-right:6px}.ho-electronic-analysis>.question-body[hidden]{display:none!important}

.ho-question[data-appearance="numbered"] .ho-badge{display:inline;margin:0;padding:0;border:0;border-radius:0;background:none;color:inherit;letter-spacing:0;font:inherit;font-style:normal;white-space:pre}

.ho-question[data-category="\6570\5b57\7f16\53f7"] .ho-badge{display:inline;margin:0;white-space:pre;vertical-align:baseline}

.ho-ink-toolbar{display:flex;gap:7px;align-items:center;flex-wrap:wrap;padding:9px 16px;background:#fafcf7;border-bottom:1px solid #dbe5d3;flex-shrink:0;z-index:15;font:13px/1.5 system-ui}.ho-ink-toolbar button,.ho-ink-toolbar select{min-height:40px;padding:7px 11px;border:1px solid #d0dec5;border-radius:8px;background:white;color:#345744;font:inherit;cursor:pointer;touch-action:manipulation}.ho-ink-toolbar button.active{background:#dfead5;border-color:#7d9f65}.ho-ink-colors{display:flex;gap:5px}.ho-ink-toolbar [data-ink-color]{width:30px;min-height:30px;padding:0;border:5px solid white;background:var(--ink-color);border-radius:50%;box-shadow:0 0 0 1px #ced9c6}.ho-ink-toolbar [data-ink-color].active{box-shadow:0 0 0 2px #668954}.ho-ink-toolbar label{display:flex;gap:5px;align-items:center;white-space:nowrap}.ho-ink-toolbar input[type=checkbox]{width:17px;height:17px}.ho-ink-status{font-size:11px;color:#7a8970}.public-handout-ink-bar{position:sticky;top:0;max-width:950px;margin:0 auto 12px;border-radius:10px;box-shadow:0 3px 14px #243e3012}.ho-ink-surface{position:relative;isolation:isolate;min-width:0;overflow:hidden}.ho-ink-answer-space{height:140px}.ho-ink-writing .ho-ink-answer-space{background:repeating-linear-gradient(transparent,transparent 33px,#d8e3d1 33px,#d8e3d1 34px)}.ho-ink-current.ho-ink-writing{outline:1px dashed #b1c59d;outline-offset:3px}.ho-ink-surface .cp-ink{border:0!important;padding:0!important;margin:0!important;border-radius:0!important;max-width:none!important}.ho-ink-surface canvas{user-select:none;-webkit-user-select:none}.ho-electronic-pages .ho-ink-surface .ho-electronic-live{position:relative}.ho-electronic-analysis,.public-handout-analysis{position:relative;z-index:7}@media(max-width:600px){.ho-ink-toolbar{padding:7px;gap:5px}.ho-ink-toolbar button,.ho-ink-toolbar select{padding:6px 8px;min-height:38px}.ho-ink-status{flex-basis:100%}.ho-ink-answer-space{height:170px}}

/* The content is the only zoomed surface; tools stay outside its viewport. */
.ho-ink-surface>.ho-electronic-analysis,.ho-ink-surface>.public-handout-analysis{z-index:auto}
/* Keep analysis below the ink canvases; only its disclosure buttons sit above. */
.ho-ink-surface.ho-ink-writing iframe{pointer-events:none!important}
.ho-gesture-viewport{touch-action:none;overflow:auto!important;overscroll-behavior:none;scroll-behavior:auto!important;position:relative}.ho-gesture-viewport.ho-pen-active{overflow:hidden!important}.ho-zoom-stage{position:relative;flex:none;margin:0 auto;min-height:1px}.ho-zoom-stage>.ho-electronic-pages,.ho-zoom-stage>#public-handout{position:absolute;left:0;top:0;margin:0;transform-origin:0 0;touch-action:none}.ho-zoom-controls{display:inline-flex;gap:4px;align-items:center}.ho-zoom-controls button{min-width:36px}.ho-gesture-public{height:100dvh;overflow:hidden;display:flex;flex-direction:column}.ho-gesture-public .public-handout-header{width:100%;flex-shrink:0;padding:10px 18px}.ho-gesture-public .public-handout-header h1{font-size:19px;margin:3px 0}.ho-gesture-public .public-handout-header small{display:none}.ho-gesture-public .public-handout-ink-bar{position:relative;top:auto;max-width:none;width:100%;margin:0;border-radius:0;flex-shrink:0}.ho-gesture-public-viewport{flex:1;min-height:0;padding:12px;overflow:auto}.ho-gesture-public .public-handout-foot{flex-shrink:0;margin:0;padding:5px;font-size:11px}
.ho-zoom-stage>.ho-electronic-pages .ho-page{width:100%}
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.ho-ink-surface>.ho-ink-answer-space{background:repeating-linear-gradient(transparent,transparent 33px,#d8e3d1 33px,#d8e3d1 34px)!important}

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/* Compact branches: plain labels and stars share the same wrapping row. */
.ability-forest{padding:12px 10px 20px;min-height:0;border-radius:12px}.ability-forest>p{margin:0 0 5px;font-size:11px}
.ability-trunk{padding:8px 0 28px 54px;min-height:0;margin-left:4px}.ability-branch{margin-bottom:8px}.ability-branch-row{gap:3px;min-height:32px;padding-right:8px;align-items:center}
.ability-node{border:0;border-radius:0;box-shadow:none;background:transparent;font-size:15px;line-height:1.4;min-height:28px;padding:2px 3px;color:#503c27}.ability-node:before{display:none}
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/* Distinct topic levels with slender branches and readable grouped children. */
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.ability-medal-dialog .modal-header{padding:12px 16px}.ability-medal-dialog .modal-header h2{font-size:16px}.ability-medal-dialog .modal-content{padding:12px!important;min-width:0;width:auto;box-sizing:border-box}
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.ability-forest{background:linear-gradient(145deg,#fcfdf7,#f2f6e9);border-color:#dfe8d2;padding:12px 8px 16px}.ability-trunk{padding-left:42px}
.ability-trunk>.ability-branch{margin-bottom:14px}.ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-weight:700;color:#365a35;font-size:15px;letter-spacing:.2px}
.ability-children{margin:4px 0 0 7px;padding:2px 0 0 22px;border-left:1px dashed #bdcdaa;border-radius:0}.ability-children .ability-node{font-weight:500;color:#58644e;font-size:13px}.ability-children .ability-children{padding-left:16px;border-color:#d0dbc3}.ability-children .ability-branch{margin-bottom:5px}
.ability-branch-row{padding-top:2px;padding-bottom:4px;column-gap:3px;row-gap:0}.ability-star{color:#bdc8b4;text-shadow:none}.ability-star.correct{color:#e4b83f;text-shadow:0 1px 1px #bf902022}
@media(max-width:650px){.ability-trunk{padding-left:30px}.ability-children{padding-left:20px;margin-left:6px}.ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:14px}.ability-children .ability-node{font-size:13px}}

/* Reference tree: broad curved trunk, ivory topic signs, fine child twigs. */
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.ability-star{font-size:30px;min-width:32px;min-height:36px;color:#bcc2b4;opacity:.85;text-shadow:none;background:none}.ability-star.correct{opacity:1;color:#efbe35}.ability-node:before{display:none}
.ability-stars:empty:after{content:'?';color:#9aac87;font-size:23px;line-height:1;padding-left:4px}.ability-trunk>.ability-branch>.ability-branch-row>.ability-stars:empty:after{content:'? ????';font-size:12px;color:#a9a18d;padding-left:8px}
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.ac-room{height:100%;display:flex;flex-direction:column;background:#f8faf4;color:#263b30;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);box-sizing:border-box}
.ac-head{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid #d6e2cc;background:#fff;flex-shrink:0}.ac-head strong{font-size:14px;flex:1;min-width:0}.ac-head button{min-height:42px;padding:7px 12px;border:1px solid #c9d7bd;border-radius:8px;background:white;touch-action:manipulation}
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.ac-main{display:grid;grid-template-columns:minmax(0,1fr) 300px;flex:1;min-height:0;gap:0}
.ac-scroll{overflow:auto;min-height:0;overscroll-behavior:contain;padding:16px;background:#fff}
.ac-room .ability-question{min-height:100%;padding:8px;box-sizing:border-box}.ac-room .question-body{font-size:22px;line-height:1.8;overflow-wrap:anywhere}.ac-room figure{border:0;padding:0;margin:12px 0}.ac-room figcaption{display:none}.ac-room .ability-question img{display:block;max-width:100%;height:auto;max-height:none}.ac-room .ability-ink-space{height:280px;min-height:180px}
.ac-answer{border-left:1px solid #dae4d2;padding:14px;display:flex;flex-direction:column;gap:10px;overflow:auto;min-height:0;background:#f0f5eb}
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.ac-image-error{position:relative;z-index:8;padding:10px;background:#fff1dc;color:#81592c;font-size:14px}.ac-image-error button{min-height:40px;padding:6px 12px;border:1px solid #caaf84;border-radius:6px;background:white}
.ac-answer footer{position:sticky;bottom:-1px;background:#f0f5eb;padding-top:4px;z-index:2}
/* Safe-area variables also map the physical notch when portrait is rotated. */
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.ac-main{display:block}.ac-scroll{height:100%;box-sizing:border-box;padding:6px 12px}.ac-room .ability-question{padding:0}
.ac-dock{position:relative;display:flex;align-items:center;gap:8px;flex-shrink:0;padding:8px;background:#f0f5eb;border-top:1px solid #dae4d2;max-height:45%;box-sizing:border-box}
.ac-head{padding:0;border:0;background:transparent;gap:5px;flex-wrap:wrap;max-width:230px}.ac-head button{font-size:12px;padding:6px 8px}.ac-tools .ability-ink-tools{gap:5px}
.ac-answer{flex:1;min-width:0;padding:0;border:0;overflow:visible;display:grid;grid-template-columns:minmax(100px,1fr) auto;gap:4px 8px;align-items:center}
.ac-entry{min-width:0}.ac-entry>b,.ac-parts small{display:none}.ac-fields{margin:0;max-height:92px;gap:5px}.ac-fields label{display:flex;align-items:center;gap:4px;flex:1 1 90px}.ac-fields input{min-height:38px;font-size:18px;padding:4px}
.ac-parts{margin-top:3px}.ac-parts button{min-height:28px;padding:3px 6px;font-size:11px}.ac-answer footer{position:static;display:flex;gap:5px;padding:0;margin:0;background:transparent}.ac-answer footer button{min-height:40px;font-size:12px;padding:6px 9px;white-space:nowrap}
.ac-feedback{grid-column:1/-1;min-height:0;font-size:12px}.ac-feedback:empty{display:none}.ac-choices{display:flex;gap:6px;margin:0}.ac-choices button{flex:1;min-width:36px;min-height:38px;padding:4px}
.ac-keyboard{position:absolute;right:8px;bottom:calc(100% + 6px);width:240px;max-width:calc(100% - 16px);padding:8px;background:#f0f5eb;border:1px solid #bbccb0;border-radius:10px;box-shadow:0 3px 18px #263b3026;z-index:10}.ac-keyboard[hidden]{display:none}.ac-keyboard button{min-height:34px;padding:3px}
@media(max-width:600px) and (orientation:portrait){
 .modal.ac-dialog{inset:auto;left:50%;top:50%;width:100dvh;height:100dvw;transform:translate(-50%,-50%) rotate(90deg);transform-origin:center}
 .ac-room{padding:max(4px,var(--ac-safe-right)) max(8px,var(--ac-safe-bottom)) max(4px,var(--ac-safe-left)) max(28px,var(--ac-safe-top))}
}
@media(max-height:500px) and (orientation:landscape){.ac-room{padding:max(4px,var(--ac-safe-top)) max(28px,var(--ac-safe-right)) max(4px,var(--ac-safe-bottom)) max(28px,var(--ac-safe-left))}}
@media(max-width:600px) and (orientation:portrait),(max-height:500px) and (orientation:landscape){
 .ac-dock{gap:6px;padding:5px;max-height:42%}.ac-head{max-width:190px;gap:4px}.ac-head button,.ac-tools .ability-ink-tools button{min-height:32px;padding:4px 6px;font-size:11px}.ac-tools .ability-ink-tools{gap:4px}.ac-answer{gap:3px 6px}.ac-answer footer{flex-direction:column;gap:3px}.ac-answer footer button{min-height:30px;padding:4px 6px;font-size:11px}.ac-fields{max-height:76px}.ac-fields label{font-size:10px}.ac-fields input{min-height:32px;font-size:17px}.ac-room .question-body{font-size:20px;line-height:1.65}.ac-scroll{padding:2px 6px}
}

/* One compact bottom row; only the answer fields scroll for multi-part work. */
.modal.ac-dialog>.modal-content{padding:0!important;margin:0;width:100%;max-width:none;box-sizing:border-box}
.ac-room{background:#fff}.ac-scroll{padding:0!important;scrollbar-gutter:stable}.ac-room .ability-question{margin:0;max-width:none;width:100%;padding:0 3px!important}.ac-room .ability-ink-surface .question-body{font-size:18px;line-height:1.55;margin-top:0}
.ac-scroll.ac-dragging{touch-action:none;cursor:grab}.ac-scroll.ac-dragging:active{cursor:grabbing}
.ac-dock{flex-wrap:nowrap;gap:6px;padding:5px 6px;max-height:none}
.ac-head{flex-wrap:nowrap;max-width:none;flex:0 0 auto;gap:4px}
.ac-answer{display:flex;flex-direction:row;gap:6px;align-items:center}
.ac-entry{display:flex;align-items:center;gap:5px;flex:1;min-width:0}
.ac-fields{flex:1;flex-wrap:nowrap;min-width:68px;max-height:none;overflow-x:auto;gap:4px}
.ac-fields label{flex:0 0 auto;white-space:nowrap;font-size:10px;gap:3px}
.ac-fields input{width:80px;min-height:34px;font-size:17px;padding:4px}
.ac-parts{flex:0 0 auto;flex-wrap:nowrap;gap:4px;margin:0}
.ac-parts button{white-space:nowrap;font-size:11px;min-height:34px;padding:4px 5px}
.ac-answer footer{flex-direction:row;flex:0 0 auto;gap:4px}
.ac-answer footer button{min-height:34px;padding:4px 6px;font-size:11px}
.ac-answer footer [data-ac-next]{max-width:105px;overflow:hidden;text-overflow:ellipsis}
.ac-feedback{position:absolute;bottom:calc(100% + 5px);left:6px;right:6px;margin:0;padding:5px 8px;border-radius:6px;background:#f0f5ebed;pointer-events:none;font-size:12px;z-index:9}
.ac-choices{gap:4px;flex:1}.ac-choices button{min-width:30px;min-height:34px;font-size:16px}
.ac-room .ac-dock button,.ac-room .ac-dock .ability-ink-tools button,.ac-room .ac-dock .ac-fields input{box-sizing:border-box;height:30px;min-height:30px;max-height:30px;padding:3px 6px;line-height:22px}
.ac-room .ac-dock [data-ac-color]{width:24px;padding:0;border-radius:50%;font-size:14px}.ac-room [data-ac-color][aria-pressed=true]{outline:2px solid #71975a;outline-offset:1px}
.ac-dock{padding-top:4px;padding-bottom:4px}.ac-head,.ac-entry,.ac-answer footer{align-items:center}

/* Fractions used to inherit a 2.8-line baseline from the library view. */
.ac-room .ability-ink-surface .question-body,.ac-room .question-body:has(.mfrac){line-height:1.85!important;padding-top:0;margin-top:0}
.ac-room .question-body>:first-child{margin-top:0}.ac-room .question-exercise-intro{margin-top:0}
@media(max-width:600px) and (orientation:portrait),(max-height:500px) and (orientation:landscape){.ac-room{padding-top:0}.ac-room .ac-main{margin:0;padding:0}}

.ac-room .ac-dock [data-ac-writing-mode]{box-sizing:border-box;width:46px;min-width:46px;height:30px;min-height:30px;max-height:30px;padding:2px;border:1px solid #bacdad;border-radius:6px;background:#fff;font-size:10px;color:#345744}.ac-tools .ability-ink-tools{gap:3px}.ac-room .ac-dock [data-ac-color]{width:22px}

.family-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:20px 0}.family-card{padding:24px;min-width:0}.family-card h2{margin:0 0 18px}.family-card h3{margin:22px 0 10px}.family-card details{margin-top:20px}.family-card summary{cursor:pointer;padding:10px 0;font-weight:700}.family-card p{line-height:1.8}.family-actions,.family-inline{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.family-inline>*{min-width:100px;flex:1}.family-actions a{display:inline-flex;align-items:center;text-decoration:none;padding:10px 16px;border-radius:8px}.family-actions select{min-height:44px;max-width:100%}.family-balance{font-size:46px;font-weight:800;color:#275b46;margin:12px 0}.family-balance small{font-size:16px;margin-left:8px}.family-row{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:16px 4px;border-bottom:1px solid #e4e9e5;flex-wrap:wrap}.family-row>div{flex:1}.family-row small{display:block;color:#65746c;margin-top:6px}.family-row>strong{white-space:nowrap}.family-review{padding:18px 0;border-bottom:1px solid #dce5de}.family-preview{width:100%;height:auto}.family-rule-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.family-podium{display:flex;justify-content:center;align-items:flex-end;gap:16px;margin:30px 0;flex-wrap:wrap}.family-podium article{text-align:center;min-width:170px;padding:22px 16px;border-radius:20px 20px 6px 6px;background:#e9f1ec}.family-podium article>span{font-size:44px}.family-podium .family-podium-1{min-height:275px;background:linear-gradient(#fff7d7,#f3d989);order:2}.family-podium .family-podium-2{min-height:240px;background:#e9edf2;order:1}.family-podium .family-podium-3{min-height:210px;background:#f1ded0;order:3}.family-mine{background:#edf8ee;padding-left:12px;padding-right:12px}.family-pk-scores{display:flex;align-items:center;justify-content:space-around;gap:16px;text-align:center;padding:24px}.family-pk-scores b{font-size:34px}.family-register{border-top:1px solid #ddd;margin-top:28px;padding-top:16px}.family-parent #content{max-width:1280px;margin:0 auto}.family-parent input,.family-parent select,.family-parent textarea{font-size:16px;min-height:44px}.family-parent button{min-height:44px}.family-parent .family-card input[type=checkbox]{min-height:0}.family-card textarea{min-height:80px}.family-card .field{min-width:0}#family-pk-next{position:relative;z-index:5}
@media(max-width:760px){.family-grid{grid-template-columns:1fr;gap:14px;margin:14px 0}.family-card{padding:18px}.family-podium{gap:7px}.family-podium article{min-width:0;flex:1;padding:16px 6px}.family-podium article h3{font-size:15px;overflow-wrap:anywhere}.family-podium article>span{font-size:32px}.family-podium .family-podium-1{min-height:245px}.family-podium .family-podium-2{min-height:215px}.family-podium .family-podium-3{min-height:190px}.family-rule-grid{grid-template-columns:1fr 1fr}.family-actions>*{flex:1;text-align:center}.family-parent .content{padding:16px}.family-pk-scores{padding:14px 0}.family-pk-scores b{font-size:28px}}

/* A touch-friendly main menu, followed by existing family account controls. */
.family-launcher{margin:0 0 24px}.family-launcher-title h2{font-size:21px;color:#304e3a;margin:0 0 5px}.family-launcher-title p{font-size:13px;color:#879080;margin:0 0 14px}
.family-launcher-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.family-launch-tile{position:relative;display:flex;flex-direction:column;align-items:flex-start;text-align:left;gap:7px;min-height:145px;padding:18px;border:1px solid #e0e7d8;border-radius:18px;background:linear-gradient(145deg,#fffef9,#f0f5e9);color:#35523e;box-shadow:0 3px 12px #39553c08;touch-action:manipulation}.family-launch-tile:hover{border-color:#8ba77b;background:#edf4e4}.family-launch-tile:focus-visible{outline:3px solid #6e9260;outline-offset:2px}.family-launch-icon{display:grid;place-items:center;background:#e4edda;border-radius:12px;width:42px;height:42px}.family-launch-icon svg{width:25px;height:25px}.family-launch-tile strong{font-size:17px}.family-launch-tile small{font-size:12px;color:#819076;font-weight:400}.family-launch-arrow{position:absolute;right:15px;top:20px;font-size:24px;color:#96a68b}
.family-page-return{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fbfcf6f5;backdrop-filter:blur(10px);border-bottom:1px solid #e1e7d9;padding:8px 4px;margin:0 0 12px}.family-page-return button{min-height:38px;padding:6px 12px}.family-page-return span{font-size:13px;color:#809074}
@media(max-width:650px){.family-launcher-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.family-launch-tile{min-height:136px;padding:14px 12px;border-radius:16px}.family-launch-tile strong{font-size:16px}.family-launch-tile small{font-size:11px}.family-launcher-title h2{font-size:19px}.family-parent-shell .topbar .breadcrumb{font-size:11px}.family-page-return{margin-top:-4px}.family-launch-tile:last-child:nth-child(odd){grid-column:1/-1;min-height:100px}.family-parent-shell .content>.page-heading h1{font-size:25px}}

.compact-tool-header.unified-editor-header{flex-wrap:nowrap;gap:10px;align-items:center}
.compact-tool-header h2{white-space:nowrap;font-size:18px}
.compact-tool-header .compact-tool-row{display:flex;flex-wrap:nowrap;min-width:0;gap:5px;margin:0;order:0;flex:1;max-height:none;overflow:visible}
.compact-tool-row>button,.compact-tool-row>.editor-tool-group>button{white-space:nowrap;flex:none;font-size:13px;padding:6px 9px;min-height:34px}
.editor-tool-group{display:inline-flex;flex:none}
.compact-tool-row .editor-tool-panel{position:fixed;z-index:1000;display:grid;grid-template-columns:repeat(3,max-content);gap:6px;padding:10px;background:#fff;border:1px solid #d6dfcc;border-radius:10px;box-shadow:0 8px 26px #26341d26;max-width:calc(100vw - 16px)}
.compact-tool-row .editor-tool-panel[hidden]{display:none}
.editor-tool-panel button{white-space:nowrap;min-height:36px;margin:0}
.compact-tool-header>.icon-btn{flex:none}
@media(max-width:1000px){.compact-tool-header.unified-editor-header{gap:6px;padding:10px}.compact-tool-header h2{font-size:16px}.compact-tool-header .compact-tool-row{overflow-x:auto;overflow-y:visible;flex-basis:auto}.compact-tool-row>button,.compact-tool-row>.editor-tool-group>button{padding:6px 7px;font-size:12px}}

/* Forest illustration assets decorate live, data-driven topic and star controls. */
#content:has(.ability-illustrated){background:#f7f1df url("forest-assets/backdrop.png") center top/100% auto no-repeat;padding:20px 16px 80px;min-height:100dvh;box-sizing:border-box}
#content:has(.ability-illustrated)>.page-heading{background:#fffcf0c9;border:1px solid #e2d3b9;border-radius:15px;padding:12px;margin-bottom:10px;backdrop-filter:blur(8px)}
#content:has(.ability-illustrated)>.page-heading h1{font-family:Georgia,'Songti SC','SimSun',serif;color:#3f4932}
.forest-learner-heading .eyebrow,.forest-learner-heading p{display:none}.forest-learner-heading h1{font-size:22px;margin:0}.forest-learner-heading{align-items:center!important}.forest-learner-heading #ability-back{background:#fff8e9;border-color:#d8c39f;min-height:32px;padding:4px 12px}
.forest-progress-title{font-size:19px;line-height:1.4;color:#3a472e}
#content:has(.ability-illustrated)>.ability-top:has(progress){background:#fffbeded;border-color:#ddcfb4;box-shadow:0 2px 8px #87654216;border-radius:17px;gap:7px;padding:13px 17px;margin:0 0 10px 42px}
#content:has(.ability-illustrated)>.ability-top:has(progress)>span{font-size:14px;color:#877253}
#content:has(.ability-illustrated)>.ability-top:has(progress) progress{accent-color:#769362}
.ability-illustrated{background:transparent;border:0;border-radius:0;padding:10px 0 35px;overflow:visible}
.ability-illustrated>p{margin-left:45px;padding:4px 8px;background:#fffcf0b8;border-radius:7px;color:#8a785d;font-size:10px}
.ability-illustrated .ability-trunk{padding:20px 0 55px 47px;min-height:300px;isolation:isolate}
.ability-illustrated .ability-trunk::before{content:'';display:block;position:absolute;left:-42px;top:0;bottom:0;width:135px;transform:none;border:0;border-radius:0;box-shadow:none;background: url("forest-assets/trunk.png") center top/135px 203px repeat-y;z-index:0;pointer-events:none;mask-image:linear-gradient(transparent,#000 3%,#000 94%,transparent)}
.ability-illustrated .ability-tree-art{z-index:0}.ability-illustrated .ability-tree-art [data-main-trunk],.ability-illustrated .ability-tree-art>path,.ability-illustrated .ability-tree-art>ellipse,.ability-illustrated .ability-tree-art>g[clip-path]{display:none}
.ability-illustrated .ability-trunk>.ability-branch{margin:0 0 18px}
.ability-illustrated .ability-branch-row{position:relative;grid-template-columns:minmax(100px,1fr) minmax(115px,1.1fr);padding:5px 6px 6px;column-gap:4px;min-height:43px}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row{background:linear-gradient(90deg,#fff7df 0%,#fffbedf0 85%,#f9f1dfc9);border:1px solid #cdb18b;border-radius:28px 16px 20px 24px;box-shadow:inset 0 0 0 3px #fffdf39c,0 3px 6px #6b462726}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row::before{content:'';display:block;position:absolute;left:-52px;right:-7px;top:-22px;height:95px;background:url("forest-assets/branch.png") left center/100% 100% no-repeat;z-index:-1;transform:none;pointer-events:none}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-family:Georgia,'Songti SC','SimSun',serif;font-size:16px;color:#3c3b2b;line-height:1.4;min-height:30px;border:1px solid #ceb18a;background:linear-gradient(#fffdf4,#f8ebd0);border-radius:18px;padding:3px 7px;font-weight:700;box-shadow:inset 0 0 0 2px #fff7e3}
.ability-illustrated .ability-stars{gap:0;justify-content:flex-start}.ability-illustrated .ability-star{font-size:29px;min-width:28px;min-height:32px;padding:0;color:#aeb3a2;filter:drop-shadow(0 1px 0 #fffbed)}
.ability-illustrated .ability-star.correct{color:#edb536;text-shadow:0 1px 1px #c48c3a}.ability-illustrated .ability-star.has-answer{color:#d45b4e}
.ability-illustrated .ability-children{margin:11px 0 0 12px;padding-left:18px}.ability-illustrated .ability-children .ability-branch{margin-bottom:10px}
.ability-illustrated .ability-children .ability-branch-row{background:#fff9e9;border:1px solid #e0d3b6;border-radius:15px 19px 17px 12px;box-shadow:0 2px 3px #73573412;padding:4px 5px;min-height:36px}
.ability-illustrated .ability-children .ability-branch-row::before{content:'';display:block;position:absolute;left:-19px;top:-11px;width:34px;height:50px;background:url("forest-assets/branch.png") left center/180px 48px no-repeat;z-index:-1;pointer-events:none;transform:rotate(20deg)}
.ability-illustrated .ability-children .ability-node{font-family:Georgia,'Songti SC','SimSun',serif;font-size:14px;color:#454b35;line-height:1.45}
.ability-illustrated .ability-node-tools{grid-column:1/-1;background:#fff9e8c9;border-color:#e5d7bb;border-radius:7px;padding-top:3px}.ability-illustrated .ability-node-tools button{font-size:10px;color:#8b795b}
#content:has(.ability-illustrated)>.small.muted{background:#fffbedb3;padding:6px;border-radius:6px;font-size:10px}
@media(max-width:650px){
 #content:has(.ability-illustrated){padding:12px 7px 70px;background-size:100% auto}
 .ability-illustrated .ability-trunk{padding-left:44px}
 .ability-illustrated .ability-branch-row{grid-template-columns:minmax(74px,.95fr) minmax(86px,1.05fr)}
 .ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:14px}
 .ability-illustrated .ability-children .ability-node{font-size:12px}
 .ability-illustrated .ability-children{margin-left:10px;padding-left:16px}
 .ability-illustrated .ability-star{font-size:25px;min-width:25px;min-height:30px}
 .forest-progress-title{font-size:16px}
}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row::before{top:0;height:80px}
.ability-illustrated .ability-stars{position:relative;z-index:2;background:#fff9e9e8;border-radius:16px;padding:1px 3px}
.ability-illustrated .ability-children .ability-node{background:#fff9e9;position:relative;z-index:2;font-size:13px;border-radius:8px}
.ability-top progress{appearance:none;-webkit-appearance:none;border:0;border-radius:8px;overflow:hidden;background:#d8decc;height:7px}
.ability-top progress::-webkit-progress-bar{background:#d8decc;border-radius:8px}.ability-top progress::-webkit-progress-value{background:#769362;border-radius:8px}

/* Standalone forest composition: natural signs on branches, no hybrid grid cards. */
.ability-illustrated .ability-trunk{margin:0;border:0;padding-top:24px}
.ability-illustrated .ability-trunk::after{display:none}
.ability-illustrated .ability-branch-row{display:flex;flex-wrap:wrap;align-items:center;width:100%;max-width:100%;box-sizing:border-box;gap:4px;padding:3px 5px;isolation:isolate}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row{border:1px solid #d7ba8d;border-radius:26px;background:linear-gradient(180deg,#fffdf3ed,#f8ecd3ed);box-shadow:inset 0 0 0 2px #fff9e3,0 2px 4px #69432120}
.ability-illustrated .ability-node{flex:0 1 auto;max-width:55%;text-align:left;overflow-wrap:anywhere;letter-spacing:0}
.ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{border:2px solid #c39b66;border-radius:23px;background:linear-gradient(170deg,#fffdf2,#f6e4bf);box-shadow:inset 0 0 0 2px #fff7df,0 1px 2px #77512c24;padding:6px 10px;min-height:36px}
.ability-illustrated .ability-stars{display:flex;flex:1 1 75px;min-width:0;flex-wrap:wrap;align-items:center;gap:1px;background:none;border-radius:0;padding:0}
.ability-illustrated .ability-star{display:grid;place-items:center;flex:0 0 auto;opacity:1;max-width:32px;line-height:1}
.ability-illustrated .ability-star.correct.half-star{color:transparent;background:linear-gradient(90deg,#edb536 50%,#bcc2b4 50%);background-clip:text;-webkit-background-clip:text;text-shadow:none}
.ability-illustrated .ability-children{border:0;padding-top:0;border-radius:0}
.ability-illustrated .ability-children .ability-branch-row{border:1px solid #e4d2ac;background:linear-gradient(90deg,#fffaf0ed,#fff8e6bb);box-shadow:none;border-radius:22px;padding:3px 5px;min-height:34px}
.ability-illustrated .ability-children .ability-node{font-weight:500;border:1px solid #e2cca5;background:#fff9eb;border-radius:18px;padding:3px 7px;box-shadow:0 1px 2px #805f2512;min-height:28px}
.ability-illustrated .ability-children .ability-children{border:0;margin-left:4px;padding-left:16px}
.ability-illustrated .ability-node-tools{display:flex;flex:1 0 100%;flex-wrap:wrap;gap:3px;border:0;background:#fff9e8b0;padding:2px 4px;border-radius:10px}
.ability-illustrated .ability-node-tools button{min-height:26px;padding:2px 5px}
.ability-illustrated .ability-node-input{max-width:none;flex:1 1 120px}
.ability-illustrated .ability-node-input input{width:100%;min-width:0}
.ability-illustrated .ability-growing [role=status]{flex-basis:100%}
.ability-illustrated .ability-stars:empty:after{content:''}
#content:has(.ability-illustrated)>.ability-top:has(progress){display:flex;flex-wrap:wrap;align-items:center}
.forest-progress-title{flex-basis:100%;font-family:Georgia,'Songti SC','SimSun',serif}
#content:has(.ability-illustrated)>.ability-top progress{flex:1;min-width:70px;max-width:none}
@media(max-width:650px){
 .ability-illustrated .ability-trunk{padding-left:48px}
 .ability-illustrated .ability-trunk>.ability-branch{margin-bottom:22px}
 .ability-illustrated .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{padding:5px 8px;font-size:14px}
 .ability-illustrated .ability-children{margin-left:8px;padding-left:18px}
 .ability-illustrated .ability-children .ability-node{font-size:12px;padding:3px 6px}
 .ability-illustrated .ability-star{min-width:23px;min-height:30px;font-size:25px;padding:0}
 .ability-illustrated .ability-stars{flex-basis:60px}
 #content:has(.ability-illustrated)>.page-heading{background:transparent;border:0;box-shadow:none;backdrop-filter:none;padding:7px 8px 7px 55px}
 #content:has(.ability-illustrated)>.ability-top:has(progress){margin-left:48px;padding:10px 12px}
}

.ability-theme-control{display:flex;align-items:center;gap:6px;font-size:13px}.ability-theme-control select{min-height:36px;max-width:190px}.ability-theme-preview{padding:35px 20px;border-radius:16px;text-align:center;font-size:23px;background:#edf4e4;color:#35543a}.ability-theme-preview[data-theme=constellation],.ability-tree-card[data-theme=constellation]{background:radial-gradient(at top left,#384698,#080f2c);color:#e1e9ff;border-color:#5a6daf}.ability-theme-preview[data-theme=amber],.ability-tree-card[data-theme=amber]{background:linear-gradient(140deg,#f8e1a9,#b5742d);color:#57300c;border-color:#c18a42}
/* All styles use the same live directory and star controls, independently per tree. */
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-trunk::before{background:none;left:14px;width:5px;mask-image:none;border-radius:8px;background:var(--tree-line);box-shadow:var(--tree-glow,none)}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-branch-row::before{background:none;left:-30px;right:auto;top:50%;width:30px;height:2px;transform:none;border-radius:0;background:var(--tree-line);box-shadow:var(--tree-glow,none)}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-children .ability-branch-row::before{left:-18px;width:18px;height:2px;top:50%;background:var(--tree-line);transform:none}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-trunk{padding-left:42px}.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-tree-art{display:none}.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-children{border-left:2px solid var(--tree-line);padding-left:18px;margin-left:12px}.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-node-tools{background:transparent}.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-trunk>.ability-branch{margin-bottom:24px}
/* 2: luminous constellation branches and navy star field. */
#content:has([data-theme=constellation].ability-forest){background-color:#080e25;background-image:radial-gradient(1px 1px at 20% 20%,#fff 99%,transparent),radial-gradient(1px 1px at 75% 55%,#92b9ff 99%,transparent),radial-gradient(2px 2px at 45% 80%,#d6ceff 99%,transparent),radial-gradient(ellipse at 15% 45%,#34478788,transparent 60%),linear-gradient(160deg,#101c48,#070c20);background-size:43px 61px,71px 89px,137px 159px,100% 100%,100% 100%;color:#dce6ff}
.ability-forest[data-theme=constellation]{--tree-line:#8aa7ff;--tree-glow:0 0 9px #718cff;background:none;color:#dce6ff}.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row{background:linear-gradient(110deg,#263c7599,#111e4499);border-color:#688be1;box-shadow:0 0 12px #718cff33;border-radius:10px}.ability-illustrated[data-theme=constellation] .ability-node,.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{background:#1e3260;border-color:#91a8ff;color:#eef3ff;box-shadow:0 0 8px #96aaff55;border-radius:8px}.ability-illustrated[data-theme=constellation] .ability-children .ability-branch-row{background:#111a3288;border-color:#394569;border-radius:10px}.ability-illustrated[data-theme=constellation] .ability-star{color:#7c89ac}.ability-illustrated[data-theme=constellation] .ability-node-tools button{color:#b4c6ef}
#content:has([data-theme=constellation].ability-forest)>.page-heading,#content:has([data-theme=constellation].ability-forest)>.ability-top:has(progress),#content:has([data-theme=constellation].ability-forest)>.family-page-return{background:#101a36e8;border-color:#405079;color:#e0eaff}#content:has([data-theme=constellation].ability-forest) h1,#content:has([data-theme=constellation].ability-forest) .forest-progress-title{color:#edf2ff}#content:has([data-theme=constellation].ability-forest) .small.muted{background:#101a36bb;color:#b6c3e3}
/* 3: restrained green stems, white space, mint primary groups. */
#content:has([data-theme=minimal].ability-forest){background:#fcfefb;color:#294b39}.ability-forest[data-theme=minimal]{--tree-line:#7a9e66;background:none}.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row{background:#edf5e9;border:0;border-radius:12px;box-shadow:none;padding:9px}.ability-illustrated[data-theme=minimal] .ability-node,.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{background:none;border:0;box-shadow:none;color:#2d5239;font-family:inherit;border-radius:0}.ability-illustrated[data-theme=minimal] .ability-children .ability-branch-row{background:transparent;border:0;box-shadow:none;padding:6px 0}.ability-illustrated[data-theme=minimal] .ability-children .ability-node{font-family:inherit}.ability-illustrated[data-theme=minimal] .ability-trunk::before{width:4px}.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row::after{content:'';position:absolute;left:-34px;width:12px;height:12px;border:3px solid #7a9e66;border-radius:50%;background:#fff;display:block}
/* 5: copper stems, raised amber medallions and ivory task panels. */
#content:has([data-theme=amber].ability-forest){background:radial-gradient(ellipse at top right,#fff8e6,transparent 60%),linear-gradient(115deg,#b77e3c44,#f7e4bd 45%,#f4d294);color:#603b1d}.ability-forest[data-theme=amber]{--tree-line:#ba7a26;background:none}.ability-illustrated[data-theme=amber] .ability-trunk::before{width:17px!important;left:5px!important;background:repeating-linear-gradient(90deg,#69401d,#b17838 4px,#875324 8px)!important;box-shadow:inset 2px 0 #e2b365,2px 0 5px #77471655}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row{background:linear-gradient(145deg,#8e5421,#593319);border:2px solid #d7a64d;box-shadow:inset 0 0 0 2px #f2c56f,0 4px 10px #75502133;border-radius:12px;padding:9px 7px}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{background:linear-gradient(140deg,#d49b3b,#a56215);border:2px solid #f7d77b;color:#fff1bd;box-shadow:0 2px 4px #3b220855;border-radius:12px}.ability-illustrated[data-theme=amber] .ability-children .ability-branch-row{background:linear-gradient(140deg,#fff9ed,#f9e8c9);border:1px solid #d8ad6c;border-left:5px solid #bc802c;box-shadow:0 4px 8px #8a602822;border-radius:12px;padding:7px}.ability-illustrated[data-theme=amber] .ability-children .ability-node{background:none;border:0;color:#56361b;box-shadow:none}.ability-illustrated[data-theme=amber] .ability-node-tools button{color:#e3c990}
.ability-illustrated[data-theme] .ability-star.correct{color:#edb536}.ability-illustrated[data-theme] .ability-star.has-answer{color:#df5b50}.ability-illustrated[data-theme] .ability-star.correct.half-star{color:transparent;background:linear-gradient(90deg,#edb536 50%,#aab1b6 50%);background-clip:text;-webkit-background-clip:text}
@media(max-width:650px){.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-node{max-width:57%}.ability-theme-control{flex-basis:100%}}
/* Medallions and constellation junctions are repeated for every new primary topic. */
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{content:'✦';display:inline-grid;place-items:center;position:static;width:26px;height:26px;margin-right:6px;border-radius:50%;border:2px solid #ffe399;background:radial-gradient(circle at 35% 25%,#ffe599,#cf871f 55%,#93500c);color:#fff6cd;font:19px Georgia;box-shadow:0 2px 5px #542a0a55;transform:none}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch:nth-child(3n+2)>.ability-branch-row>.ability-node::before{content:'÷'}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch:nth-child(3n)>.ability-branch-row>.ability-node::before{content:'▥'}
.ability-illustrated[data-theme=amber] .ability-children .ability-node-tools button{color:#93622e}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row::before{height:6px;border-radius:50%;background:linear-gradient(#f4ce71,#9c5a17);box-shadow:0 1px 2px #84532166}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{content:'✧';display:inline-grid;place-items:center;position:static;width:26px;height:26px;margin-right:6px;border-radius:50%;border:1px solid #aac0ff;background:#253872;color:#dce7ff;font:24px Georgia;box-shadow:0 0 10px #91abff;transform:none}
.ability-illustrated[data-theme=constellation] .ability-children .ability-branch-row::after{content:'';display:block;position:absolute;left:-23px;top:calc(50% - 4px);width:8px;height:8px;border-radius:50%;background:#eef3ff;box-shadow:0 0 8px #a0c6ff}
.ability-illustrated[data-theme=constellation] .ability-trunk::before{background:linear-gradient(#929aff,#cae6ff,#6677cb)!important;border-radius:70% 30% 30% 70%!important;transform:rotate(.5deg)}
.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{content:'✿';position:static;display:inline-grid;place-items:center;width:26px;height:26px;margin-right:6px;background:#d9ebcf;border-radius:50%;color:#639154;transform:none;font-size:20px}
#content:has([data-theme=constellation].ability-forest)>.ability-top>span{color:#f3d58e}#content:has([data-theme=constellation].ability-forest)>.page-heading p{color:#aebfdf}

/* Reference-led second edition: spacious labels, measured curved branches and artwork. */
.ability-theme-art{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:visible}.ability-illustrated[data-theme=constellation] .ability-theme-art{filter:drop-shadow(0 0 4px #718fff)}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-branch-row::before,.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-branch-row::after{display:none!important}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-children{border:0;margin-left:18px;padding-left:18px}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-node{max-width:none}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-trunk>.ability-branch{margin-bottom:30px}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-star{font-size:29px;min-width:30px;min-height:36px;filter:drop-shadow(0 1px 1px #46371333)}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-stars{gap:3px}
.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-node-tools{padding:3px 0;opacity:.8}
#content:has(.ability-forest[data-theme=constellation]){background:#07102b url("theme-assets/constellation-v2.png") left top/100% auto repeat-y;color:#e2eaff}
.ability-illustrated[data-theme=constellation] .ability-trunk{padding-left:46px;padding-top:15px}
.ability-illustrated[data-theme=constellation] .ability-trunk::before{background:linear-gradient(transparent,#aac1ff,#9aafff,transparent)!important;width:4px!important;left:15px!important;transform:rotate(-1deg);box-shadow:0 0 15px #9b9eff}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row{border:0;background:none;box-shadow:none;min-height:54px;padding:0}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-family:Georgia,'Songti SC',serif;font-size:18px;border-radius:30px 6px 6px 30px;padding:5px 12px 5px 5px;border:1px solid #8aabf1;background:linear-gradient(110deg,#2d4b91ee,#152e62cc);box-shadow:0 0 14px #8b9eff44}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch:nth-child(even)>.ability-branch-row>.ability-node{background:linear-gradient(110deg,#57408ddd,#291e59cc);border-color:#b09af0}
.ability-illustrated[data-theme=constellation] .ability-node::before{width:34px!important;height:34px!important;font-size:27px!important}
.ability-illustrated[data-theme=constellation] .ability-children .ability-branch-row{border:0;background:none;box-shadow:none;display:flex;flex-direction:column;align-items:flex-start;gap:5px;padding:10px 0;min-height:72px}
.ability-illustrated[data-theme=constellation] .ability-children .ability-node{font-size:15px;background:none;border:0;box-shadow:none;padding:0;color:#dceeff;font-weight:600}
.ability-illustrated[data-theme=constellation] .ability-children .ability-stars{flex:auto}
#content:has(.ability-forest[data-theme=constellation])>.page-heading{border:0;background:transparent;box-shadow:none;backdrop-filter:none}#content:has(.ability-forest[data-theme=constellation])>.ability-top:has(progress){background:#0b1731b3;border-color:#8299bf44;margin-left:24px}#content:has(.ability-forest[data-theme=constellation]) .forest-progress-title{font-size:22px}
#content:has(.ability-forest[data-theme=minimal]){background:#fff;color:#193d31}
.ability-illustrated[data-theme=minimal] .ability-trunk{padding-left:36px}.ability-illustrated[data-theme=minimal] .ability-trunk::before{left:14px!important;width:5px!important;background:linear-gradient(#729d5c,#729d5c 95%,transparent)!important}
.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row{background:linear-gradient(100deg,#eaf3e6,#f3f8f0);padding:11px 10px;border-radius:12px;min-height:60px}
.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:17px;font-weight:700;padding:0;font-family:inherit;color:#163f30}
.ability-illustrated[data-theme=minimal] .ability-node::before{width:36px!important;height:36px!important;font-size:24px!important}
.ability-illustrated[data-theme=minimal] .ability-children .ability-branch-row{padding:12px 0;min-height:58px;background:none;gap:4px}
.ability-illustrated[data-theme=minimal] .ability-children .ability-node{font-size:14px;font-weight:600;max-width:none}
#content:has(.ability-forest[data-theme=minimal])>.ability-top:has(progress){margin-left:0;border:0;box-shadow:none;border-radius:14px;background:#eff5eb;padding:17px}#content:has(.ability-forest[data-theme=minimal]) .forest-progress-title{font-size:22px}
#content:has(.ability-forest[data-theme=amber]){background:#f7dfb4 url("theme-assets/amber-v2.png") left top/100% auto repeat-y;color:#4f2c15}
.ability-illustrated[data-theme=amber] .ability-trunk{padding-left:50px}.ability-illustrated[data-theme=amber] .ability-trunk::before{left:-7px!important;width:43px!important;background:url("forest-assets/trunk.png") center/90px 180px repeat-y!important;filter:sepia(.5) saturate(1.4);box-shadow:none;mask-image:linear-gradient(transparent,#000 5%,#000 96%,transparent)}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row{display:flex;flex-direction:column;align-items:flex-start;background:none;border:0;box-shadow:none;padding:0;gap:6px}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:2px solid #dba443;border-radius:8px;padding:6px 14px;font-size:18px;background:linear-gradient(110deg,#603919,#915a25,#593315);color:#ffe4a5;text-shadow:0 1px #422008;box-shadow:inset 0 0 0 2px #f2c978,0 3px 8px #69401855;overflow:visible}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{position:relative;width:54px!important;height:54px!important;font-size:33px!important;border:4px solid #ffe18b;margin:-17px 0 0;border-radius:50%;box-shadow:inset 0 0 0 3px #c08020,0 2px 6px #5d300c66}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-stars{padding:3px 8px;background:#fff6e6db;border-radius:12px;flex:auto}
.ability-illustrated[data-theme=amber] .ability-children{margin-top:17px;margin-left:24px!important}
.ability-illustrated[data-theme=amber] .ability-children .ability-branch-row{display:flex;flex-direction:column;align-items:flex-start;gap:5px;background:linear-gradient(135deg,#fffdf4f2,#faeacbeb);border:1px solid #e5c485;border-left:5px solid #c88c34;border-radius:13px;padding:11px 10px;box-shadow:0 5px 12px #89541f22;margin-bottom:15px}
.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:15px;font-weight:600;padding:0}.ability-illustrated[data-theme=amber] .ability-children .ability-stars{flex:auto}
#content:has(.ability-forest[data-theme=amber])>.ability-top:has(progress){margin-left:15px;background:#fff8e9ed;box-shadow:0 3px 9px #9d682522}#content:has(.ability-forest[data-theme=amber]) .forest-progress-title{font-size:22px;color:#4e2c15}
@media(max-width:400px){.ability-illustrated[data-theme]:not([data-theme=forest]) .ability-star{font-size:26px;min-width:27px}.ability-illustrated[data-theme=minimal] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:15px}}
#content:has(.ability-forest[data-theme=constellation]),#content:has(.ability-forest[data-theme=amber]){background-size:100% 100%;background-repeat:no-repeat}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch,.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch{display:grid;grid-template-columns:minmax(80px,.8fr) minmax(0,1.5fr);gap:12px;align-items:center;min-width:0}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row,.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row{grid-column:1;align-content:center;flex-direction:column;align-items:flex-start}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-children,.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-children{grid-column:2;grid-row:1;margin:0!important;padding:0!important;min-width:0}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:15px;padding:6px 7px;width:100%;box-sizing:border-box}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:14px;padding:5px;white-space:normal;box-sizing:border-box;max-width:100%}
.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{width:26px!important;height:26px!important;font-size:20px!important;margin-right:3px}
.ability-illustrated[data-theme=constellation] .ability-children .ability-node,.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:13px;overflow-wrap:anywhere;text-align:left}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-children:empty,.ability-illustrated[data-theme=constellation] .ability-trunk>.ability-branch>.ability-children:empty{display:none}
#content:has(.ability-forest[data-theme=constellation]) .family-page-return button{background:#1b2b50;color:#e1eaff;border-color:#617cb4}

/* Sculpted amber bark, inset wood nameplates and metallic branch highlights. */
.ability-illustrated[data-theme=amber] .ability-trunk{padding-left:43px;padding-bottom:42px}
.ability-illustrated[data-theme=amber] .ability-trunk::before{left:-37px!important;width:155px!important;background:url("theme-assets/amber-trunk-v3.png") center top/155px auto repeat-y!important;filter:none!important;opacity:1;mask-image:linear-gradient(transparent,#000 3%,#000 97%,transparent);z-index:0}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch{grid-template-columns:minmax(88px,.75fr) minmax(0,1.5fr);gap:17px;margin-bottom:35px}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row{align-items:center;gap:6px;z-index:2}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{position:relative;display:flex;align-items:center;justify-content:flex-end;min-height:95px;width:100%;padding:58px 5px 6px;box-sizing:border-box;background:linear-gradient(100deg,#4d2e13,#92582a 42%,#5b3419);border:2px solid #d49a38;border-radius:5px;color:#ffe4a4;box-shadow:inset 0 0 0 2px #efca72,inset 0 0 12px #2e160c99,0 3px 4px #5c371b77;font-family:Georgia,'Songti SC','SimSun',serif;font-size:15px;font-weight:700;line-height:1.3;text-align:center;text-shadow:0 1px 2px #2b1609}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{content:''!important;display:block!important;position:absolute!important;left:50%!important;top:-19px!important;transform:translateX(-50%)!important;width:73px!important;height:76px!important;margin:0!important;border:0!important;border-radius:0!important;box-shadow:none!important;background:url("theme-assets/badge-sprout.png") center/contain no-repeat!important;z-index:3}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch:nth-child(3n+2)>.ability-branch-row>.ability-node::before{background-image:url("theme-assets/badge-divide.png")!important}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch:nth-child(3n)>.ability-branch-row>.ability-node::before{background-image:url("theme-assets/badge-book.png")!important}
.ability-illustrated[data-theme=amber] .ability-children .ability-branch-row{border:1px solid #e8c88c;border-left:4px solid #d39b3c;background:linear-gradient(125deg,#fffdf3f5,#f8e8c8f2);box-shadow:inset 0 1px #fffef5,0 4px 9px #83501c2b;border-radius:11px;padding:11px 10px;gap:6px;position:relative}
.ability-illustrated[data-theme=amber] .ability-children .ability-branch-row::after{content:'›';display:block!important;left:auto!important;right:7px;top:calc(50% - 12px)!important;width:auto!important;height:auto!important;background:none!important;border:0!important;box-shadow:none!important;color:#bd8c45;font-size:22px;transform:none!important}
.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:14px;line-height:1.45;color:#4c2e18;max-width:100%;padding-right:7px;font-weight:600;text-shadow:0 1px #fff}
.ability-illustrated[data-theme=amber] .ability-children .ability-stars{gap:1px}.ability-illustrated[data-theme=amber] .ability-star{color:#9b9a91;filter:drop-shadow(0 1px 0 #fff8dd)}
.ability-illustrated[data-theme=amber] .ability-star.correct{color:#ffc543;text-shadow:0 1px #a36113,0 0 2px #fff4a2;filter:drop-shadow(0 1px 1px #a46f1c88)}
#content:has(.ability-forest[data-theme=amber])>.page-heading{background:#fff8e5c9;border-radius:12px;padding-left:16px;border:1px solid #e4c69288;box-shadow:0 2px 5px #65431d15}
#content:has(.ability-forest[data-theme=amber])>.ability-top:has(progress){background:linear-gradient(115deg,#fff9edef,#fff5d9e8);border:1px solid #f6e3b9;box-shadow:inset 0 1px #fff,0 3px 9px #8c602826;border-radius:15px;margin-left:8px}
#content:has(.ability-forest[data-theme=amber]) progress::-webkit-progress-value{background:linear-gradient(90deg,#d4821b,#f5bd3f)}
@media(max-width:380px){.ability-illustrated[data-theme=amber] .ability-trunk{padding-left:38px}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch{gap:12px}.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:13px}}
/* Compact inset medallion and short horizontal wood plaque, as in the close-up. */
.ability-illustrated[data-theme=amber] .ability-trunk{padding-left:33px;padding-top:12px}
.ability-illustrated[data-theme=amber] .ability-trunk::before{left:-48px!important;width:185px!important;background-size:185px auto!important}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch{grid-template-columns:100px minmax(0,1fr);gap:20px;margin-bottom:22px;align-items:center}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row{gap:4px;justify-content:center;align-self:center}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{min-height:86px;height:auto;display:flex;justify-content:flex-end;align-items:center;position:relative;background:none;border:0;border-radius:0;box-shadow:none;padding:57px 5px 6px;isolation:isolate;overflow:visible;font-size:14px;text-align:center;line-height:1.4}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::before{top:-4px!important;width:65px!important;height:68px!important;z-index:2;filter:drop-shadow(0 2px 2px #49260966)}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node::after{content:'';position:absolute;display:block;left:0;right:0;bottom:0;height:32px;background:linear-gradient(115deg,#40220e,#855125 45%,#3d210f);border:2px solid #e5b65c;border-radius:5px;box-shadow:inset 0 0 0 2px #774b24,inset 0 1px 4px #fff2a333,0 2px 3px #43240d66;clip-path:polygon(7% 0,93% 0,100% 20%,100% 80%,93% 100%,7% 100%,0 80%,0 20%);z-index:-1;pointer-events:none}
.ability-illustrated[data-theme=amber] .ability-children .ability-branch-row{padding:8px 10px;margin-bottom:14px;min-height:69px;gap:3px;border-left-width:2px;border-radius:10px;background:linear-gradient(135deg,#fffaf0f7,#faedcfee);box-shadow:0 3px 6px #79502026}
.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:13px;line-height:1.35}
.ability-illustrated[data-theme=amber] .ability-children .ability-star{font-size:25px;min-width:26px;min-height:28px}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-stars{background:#fff7e5be;padding:0 4px;border-radius:10px;gap:0;justify-content:center}
.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-stars .ability-star{font-size:23px;min-width:24px;min-height:26px}
@media(min-width:651px){.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch{grid-template-columns:145px minmax(0,1fr);gap:32px}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:18px}.ability-illustrated[data-theme=amber] .ability-children .ability-node{font-size:16px}}
@media(max-width:360px){.ability-illustrated[data-theme=amber] .ability-trunk{padding-left:26px}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch{grid-template-columns:86px minmax(0,1fr);gap:15px}.ability-illustrated[data-theme=amber] .ability-trunk>.ability-branch>.ability-branch-row>.ability-node{font-size:12px}}

.upload-zone.pdf-drag-over{border-color:#49784e;background:#e5f1de;box-shadow:inset 0 0 0 2px #6f9964;transform:translateY(-1px)}.pdf-drop-hint{font-size:17px;font-weight:600;color:#3a6144;margin-bottom:10px}.pdf-drop-status{display:block;color:#527944;margin-top:10px;overflow-wrap:anywhere}.upload-zone{transition:background .15s,border-color .15s}

.assignment-surface,.assignment-review-surface{position:relative;isolation:isolate;min-height:100%;padding:4px 8px;box-sizing:border-box}.assignment-writing-space{height:160px}.assignment-dock{display:flex!important;align-items:center;flex-wrap:nowrap!important;gap:4px!important;padding:3px!important}.assignment-dock button{min-height:30px;height:30px;padding:3px 7px;font-size:12px;white-space:nowrap;border:1px solid #c4d4b8;border-radius:6px;background:#fff;color:#34533c}.assignment-dock .primary{background:#3d674d;color:white}.assignment-counter{font-size:12px;white-space:nowrap}.assignment-photos{display:flex;flex-wrap:wrap;gap:8px;padding:6px}.assignment-photos figure{margin:0;max-width:240px}.assignment-photos img,.assignment-review-photo{max-width:100%;height:auto;display:block}.assignment-photos button{font-size:12px}.assignment-save-status{font-size:10px;white-space:nowrap}.assignment-room[data-tool=pan] .ac-scroll{touch-action:none}.assignment-room [data-assignment-pen],.assignment-room [data-assignment-pan],.assignment-room [data-assignment-eraser]{background:#f3f6ee}.assignment-room[data-tool=pen] [data-assignment-pen],.assignment-room[data-tool=pan] [data-assignment-pan],.assignment-room[data-tool=eraser] [data-assignment-eraser]{background:#d4e5c6}.assignment-review-surface{min-height:340px}.assignment-room .question-body{font-size:18px;line-height:1.85}
@media(max-height:500px),(max-width:600px){.assignment-save-status{position:absolute;right:8px;bottom:38px;background:#f9fcf1d9;border-radius:5px;padding:2px 4px}.assignment-dock button{padding:2px 5px;font-size:11px}.assignment-counter{font-size:11px}}
.assignment-room .grade-answer{margin:8px;padding:12px;font-size:16px;line-height:1.8}.assignment-room .assignment-photos:empty{padding:0}.assignment-room .assignment-photos img{border-radius:6px;border:1px solid #d8e1ce}.assignment-room .assignment-photos a{display:block}

.photo-map-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:12px 0}.photo-map-controls label{display:flex;align-items:center;gap:5px;font-size:13px}.photo-map-controls button,.photo-map-controls select{min-height:38px;padding:6px 10px;border:1px solid #c5d6b8;border-radius:7px;background:#f4f8ee;color:#35543d}.photo-map-body{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:15px}.photo-map-canvas-wrap{min-width:0;max-height:62dvh;overflow:auto;background:#e6e9e1;border:1px solid #d5dfcd;padding:4px}.photo-map canvas{display:block;width:100%;height:auto;touch-action:none;cursor:crosshair}.photo-map aside{font-size:12px;max-height:62dvh;overflow:auto}.photo-map aside section{padding:7px;border-bottom:1px solid #ddd}.photo-map aside button{border:0;background:none;color:#ad5749;padding:4px}.photo-map .modal-actions{flex-wrap:wrap}.assignment-card .right{display:flex;flex-direction:column;gap:7px}
@media(max-width:650px){.photo-map-body{grid-template-columns:minmax(0,1fr)}.photo-map aside{max-height:160px}.photo-map-canvas-wrap{max-height:53dvh}.photo-map-controls{gap:5px}.photo-map-controls label{font-size:12px}.photo-map .modal-actions button{padding:7px;font-size:12px}}
.photo-map-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:8px;box-sizing:border-box;overflow:hidden}.modal.photo-map-dialog{position:relative;inset:auto;transform:none;width:1100px!important;max-width:100%!important;min-width:0;max-height:96dvh!important;display:flex;flex-direction:column;margin:0}.photo-map-dialog>.modal-header{flex-shrink:0}.photo-map-dialog>.modal-content{overflow:auto;min-height:0;flex:1;padding:12px!important}.photo-map .modal-actions{position:sticky;bottom:-12px;background:#fffef8;z-index:2;padding:10px 0}.photo-map{min-width:0}.photo-map-dialog .notice{font-size:12px;padding:10px}.photo-map aside h3{font-size:14px;margin:5px 0}
@media(max-width:650px){.photo-map-overlay{padding:0}.modal.photo-map-dialog{width:100dvw!important;max-height:100dvh!important;height:100dvh;border-radius:0}.photo-map-dialog>.modal-header{padding:10px}.photo-map-dialog>.modal-header h2{font-size:17px}}
.photo-map canvas{width:auto;max-width:100%;max-height:60dvh;height:auto;margin:auto}.photo-map-canvas-wrap{display:flex;align-items:center;justify-content:center}
@media(max-width:650px){.photo-map canvas{max-height:50dvh}}

.assignment-folder-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:16px}.assignment-folder-tree{align-self:start;padding:12px;position:sticky;top:12px}.assignment-folder-tree h3{font-size:16px;margin:5px 5px 10px}.assignment-folder-tree button{display:block;width:100%;text-align:left;border:0;padding:9px 8px;border-radius:6px;background:none;color:#53704d;font-size:13px}.assignment-folder-tree button.active{background:#e1edda;color:#2c5436;font-weight:700}.assignment-folder-tree small{float:right;color:#8a9b80}.assignment-folder-tools{border-top:1px solid #e0e8d8;margin-top:10px;padding-top:7px}.assignment-folder-results{min-width:0}.assignment-folder-move{display:flex;align-items:center;gap:6px;grid-column:1/-1;font-size:12px;color:#7d8c71}.assignment-folder-move select{max-width:250px;min-height:32px;padding:4px 8px}.assignment-folder-results .assignment-card{flex-wrap:wrap}.assignment-folder-results .assignment-folder-move{flex:1 0 100%}
@media(max-width:700px){.assignment-folder-layout{grid-template-columns:minmax(0,1fr)}.assignment-folder-tree{position:static;max-height:240px;overflow:auto}.assignment-folder-move select{max-width:75%}}

.document-workspace{display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px;align-items:start}.document-tree{padding:16px;position:sticky;top:12px;max-height:80vh;overflow:auto}.document-tree>button,.document-folder>button{display:flex;width:100%;text-align:left;gap:6px;align-items:center}.document-folder{padding-left:calc(var(--depth)*16px)}.document-tree .active{background:#e7efde;color:#395e35;border-radius:6px}.document-upload-queue{max-height:45vh;overflow:auto}.document-upload-row{display:grid;grid-template-columns:minmax(140px,1fr) 100px minmax(100px,1fr);gap:8px;align-items:center;padding:7px 0;border-bottom:1px solid #eee}.document-upload-row input{width:100%;min-width:0}.document-upload-row span{font-size:12px}.document-workspace .resource-card footer{display:flex;gap:10px;flex-wrap:wrap}@media(max-width:760px){.document-workspace{grid-template-columns:1fr}.document-tree{position:static;max-height:250px}.document-upload-row{grid-template-columns:minmax(120px,1fr) 75px}.document-upload-row span{grid-column:1/-1}}

.document-folder{display:flex;align-items:center}.document-folder>.document-expand{width:24px;flex:0 0 24px;padding:3px}.document-expand-space{width:24px;flex:0 0 24px}.document-folder>[data-document-folder]{min-width:0;flex:1}[data-document-children][hidden]{display:none!important}

.document-workspace{grid-template-columns:var(--document-tree-width,240px) minmax(0,1fr)}.document-folder-menu{display:grid;gap:8px}.document-tree-controls{display:flex;gap:8px;flex-wrap:wrap;border-top:1px solid #e3e7de;margin-top:12px;padding-top:8px}.document-more,.document-drag{border:0;background:transparent;color:#718369;padding:3px 5px;flex:0 0 auto;touch-action:none}.document-more{font-size:20px}.document-drag{cursor:grab}.document-dragging{opacity:.65;background:#edf2e6;outline:1px dashed #769366}.document-tree-resize{position:absolute;right:0;top:0;bottom:0;width:7px;cursor:col-resize;touch-action:none}.document-tree-resize:hover,.document-tree-resize:focus{background:#d8e4ca}.document-folder>[data-document-folder]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-folder-menu .secondary{text-align:left}@media(max-width:760px){.document-workspace{grid-template-columns:1fr}.document-tree-resize{display:none}.document-more,.document-drag{min-width:32px;min-height:32px}}

.document-folder>.document-drag{width:20px;flex:0 0 20px}.document-folder>.document-more{width:26px;flex:0 0 26px}.document-folder>[data-document-folder]{width:auto;flex:1;display:flex;min-width:0}.document-tree{padding-right:16px}

.resource-full-preview section{margin:12px 0 24px}.resource-full-preview img{display:block;width:100%;height:auto;background:white;border:1px solid #e1e6dc}.resource-full-preview p{color:#6a7b62;font-size:13px}

.resource-preview-overlay{grid-template-columns:minmax(0,1fr);justify-items:center}.modal.resource-preview-modal{width:1020px;min-width:0;max-width:min(1020px,calc(100vw - 24px));max-height:92dvh}.resource-preview-modal .modal-content{min-width:0}.resource-preview-modal .resource-full-preview{width:100%;min-width:0}.resource-preview-modal img{max-width:100%;min-width:0}