:root{font-family:Inter,"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:#20313a;background:#f7fafc;font-size:15px;line-height:1.5}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin-top:0}h1{font-size:1.85rem;line-height:1.25}h2{font-size:1.3rem}h3{font-size:1rem}small{font-size:.78rem}#app{min-height:100vh;display:grid;grid-template-columns:225px minmax(0,1fr)}
.sidebar{background:white;border-right:1px solid #dde5e9;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;padding:24px 13px}.brand{display:flex;gap:13px;align-items:center;padding:4px 8px 40px}.brand-mark{width:43px;height:46px;background:#087d70;color:white;border-radius:6px;display:grid;place-items:center;font-family:Georgia,serif;font-size:32px;font-style:italic;line-height:1}.brand-mark sup{color:#ffc769;font:15px Georgia;position:absolute;transform:translate(14px,-16px)}.brand strong{display:block;font-size:1.2rem;white-space:nowrap}.brand small{display:block;color:#526573}.nav-label{font-size:.75rem;color:#86949b;margin:0 11px 10px}.sidebar nav{display:grid;gap:5px}.sidebar nav a{min-height:47px;padding:11px 12px;display:flex;align-items:center;gap:13px;border-radius:6px;color:#496067}.sidebar nav a span{font-size:22px;line-height:1;width:19px;text-align:center}.sidebar nav a:hover,.sidebar nav a.current{background:#eaf5f2;color:#087669;font-weight:700}.sidebar nav small{margin-left:auto;background:#e5f1ee;padding:1px 7px;border-radius:4px}.sidebar-bottom{margin-top:auto;padding:13px 8px;font-size:.8rem;color:#506771;line-height:2}.status-dot{display:inline-block;width:6px;height:6px;background:#087d70;border-radius:50%;margin-right:6px}.sidebar-bottom small{color:#66808a}
.workspace{min-width:0;display:flex;flex-direction:column}.topbar{height:70px;background:white;border-bottom:1px solid #dce5e9;display:flex;align-items:center;justify-content:space-between;padding:0 40px;color:#617783;font-size:.8rem}.topbar>div{display:flex;align-items:center;gap:20px}.topbar .other-paper{color:#087d70;font-weight:700}.topbar #save-state{color:#087d70}main{max-width:1250px;width:100%;padding:30px 32px 65px;margin:0 auto;flex:1}footer{border-top:1px solid #dce5e9;color:#82959c;font-size:.75rem;padding:18px 32px}.page-head{border-bottom:1px solid #d7e2e6;margin-bottom:26px;padding-bottom:21px}.eyebrow{color:#087d70;font-size:.78rem;font-weight:800;margin:0 0 12px}.page-head h1{margin:0 0 10px}.subtle,.note{color:#61747e;font-size:.88rem;margin:0}.note{margin-top:24px}
button,.import-label{border:1px solid #087d70;border-radius:6px;background:#087d70;color:white;padding:10px 16px;font-weight:700;min-height:42px}button:hover,.import-label:hover{filter:brightness(.94)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d48b45;outline-offset:2px}.outline,.bookmark,.quiet,.back{background:white;color:#176c66;border-color:#cbdde0}.quiet,.back{border:0;background:transparent}.bookmark{padding:7px 12px;font-size:21px;line-height:1;min-width:40px}.filters{display:grid;grid-template-columns:1fr 1.4fr;gap:14px;padding-bottom:20px;border-bottom:1px solid #dce5e9}.filters label,.answer-field{display:grid;gap:8px;font-size:.8rem;font-weight:700}.filters input,.filters select,.answer-field input{width:100%;border:1px solid #cbd7da;border-radius:6px;background:#fff;padding:11px 13px;min-height:44px;color:#20313a}.count{font-size:.86rem;color:#687e86;margin:23px 0 12px}.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.result{background:#fff;border:1px solid #d5e1e6;border-radius:7px;padding:20px;min-width:0}.result-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.result-top strong{font-size:1.2rem}.result-top span{color:#6a8188;font-size:.78rem}.result p{color:#40545e;margin:12px 0 18px;min-height:44px}.result-actions{display:flex;align-items:center;gap:9px}.result-actions small{margin-left:auto;color:#6d8088}.inline:not(:empty){border-top:1px solid #dce5e9;margin-top:18px;padding-top:18px}.topic-list,.compact-list{display:grid;gap:0;border-top:1px solid #dce5e9}.topic-list button,.compact-list button{display:flex;align-items:center;gap:16px;justify-content:space-between;text-align:left;background:transparent;border:0;border-bottom:1px solid #dce5e9;border-radius:0;color:#20313a;font-weight:500}.topic-list button strong{margin-right:auto}.topic-list button span,.compact-list button span{color:#6b7e87}.topic-list button:hover,.compact-list button:hover{background:#eaf5f2}
.paper-intro{background:white;border:1px solid #d5e1e6;border-radius:7px;padding:24px;display:flex;justify-content:space-between;gap:30px}.paper-intro h2{margin-bottom:9px}.paper-intro p{color:#61747e;max-width:660px}.stats{display:flex;flex-wrap:wrap;gap:30px;margin-top:24px}.stats span{display:grid;gap:2px;color:#697c84;font-size:.8rem}.stats b{font-size:1.4rem;color:#20313a}.start{display:grid;align-content:center;gap:9px;min-width:180px}.section-title{margin:34px 0 14px}.number-grid,.mini-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:7px}.number-grid button,.mini-grid button{padding:0;min-width:0;height:43px;border-color:#cbdde0;background:white;color:#20313a;font-variant-numeric:tabular-nums}.number-grid button.good,.mini-grid button.good{background:#e6f4ec;border-color:#9bd2b4;color:#166a46}.number-grid button.bad,.mini-grid button.bad{background:#fdf0e8;border-color:#e8bea4;color:#9a4a22}.action-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.import-label{position:relative;background:white;color:#176c66;border-color:#cbdde0;cursor:pointer}.import-label input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}.compact-list{margin-bottom:28px}
.practice-header{display:flex;align-items:center;justify-content:space-between;gap:16px;color:#667983;font-size:.85rem;margin-bottom:18px}.timer{font-weight:800;font-variant-numeric:tabular-nums;color:#b35125}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 210px;align-items:start;gap:20px}.practice-main,.question-nav{background:#fff;border:1px solid #d5e1e6;border-radius:7px;padding:23px}.question-meta{display:flex;justify-content:space-between;gap:12px;color:#087d70;font-size:.8rem;font-weight:700}.question h2{margin:18px 0 8px}.prompt{font-size:1.07rem;line-height:1.8;white-space:pre-wrap}.options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:24px 0}.options label{display:flex;gap:12px;align-items:center;padding:13px;border:1px solid #cbdde0;border-radius:6px;cursor:pointer;min-height:54px}.options label.chosen{background:#eaf5f2;border-color:#087d70}.options input{accent-color:#087d70}.options b{color:#087d70}.answer-field{max-width:350px;margin:25px 0}.question-actions,.pager{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.question-actions .bookmark{margin-left:auto}.hints{background:#f4f8f7;border-left:3px solid #087d70;padding:14px 20px 14px 37px;margin:18px 0 0}.hints li{margin:5px 0}.feedback{border-radius:6px;padding:17px;margin-top:19px}.feedback p{margin:8px 0}.feedback small{color:#5c6d73}.feedback.success{background:#eaf7ef;color:#175c40}.feedback.error{background:#fff2e9;color:#884720}.pager{justify-content:space-between;border-top:1px solid #dce5e9;padding-top:22px;margin-top:24px}.finish{margin-top:18px;width:100%}.question-nav{position:sticky;top:15px;padding:16px}.question-nav h3{margin:0 0 13px}.question-nav p{font-size:.78rem;color:#70858d;margin:13px 0 0}.mini-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:5px}.mini-grid button{height:32px;font-size:.75rem}.mini-grid button.selected{box-shadow:inset 0 0 0 2px #087d70}.diagram{margin:16px 0;max-width:300px}.diagram svg{display:block;width:100%;background:#f8fbfb;border:1px solid #e1e9e9;border-radius:4px}.diagram text{font-size:15px;fill:#20313a}.diagram figcaption{font-size:.72rem;color:#6d7f87;margin-top:5px}.lessons,.guide-list{display:grid;gap:11px}.lessons details,.guide-list details{background:white;border:1px solid #d5e1e6;border-radius:6px;padding:0 20px}.lessons summary,.guide-list summary{cursor:pointer;font-weight:800;padding:16px 0}.guide-list summary small{font-weight:400;color:#6d8088;margin-left:12px}.lessons details p,.lessons details ol,.guide-list details p,.guide-list details ol{color:#425b64}.lessons details ol,.guide-list details ol{padding-left:22px}
@media(max-width:900px){#app{grid-template-columns:minmax(0,1fr)}.sidebar{min-width:0;height:auto;position:static;padding:10px 14px;border-right:0;border-bottom:1px solid #dce5e9}.brand{padding:2px 0 10px}.brand-mark{width:35px;height:37px;font-size:26px}.brand strong{font-size:1rem}.nav-label,.sidebar-bottom{display:none}.sidebar nav{display:flex;max-width:100%;overflow-x:auto;gap:3px}.sidebar nav a{flex-shrink:0;white-space:nowrap;min-height:40px;padding:8px 10px;font-size:.84rem}.sidebar nav a span{font-size:18px}.topbar{height:42px;padding:0 18px}main{padding:24px 18px 55px}.practice-layout{grid-template-columns:minmax(0,1fr)}.question-nav{position:static;order:-1}.mini-grid{grid-template-columns:repeat(10,minmax(0,1fr))}}
@media(max-width:600px){h1{font-size:1.55rem}.topbar span:first-child{display:none}.topbar{justify-content:flex-end}.filters,.result-grid{grid-template-columns:1fr}.paper-intro{display:block}.start{display:flex;flex-wrap:wrap;margin-top:20px}.start button{flex:1;min-width:135px}.stats{gap:20px}.number-grid{grid-template-columns:repeat(7,minmax(0,1fr))}.practice-main{padding:17px}.question-nav{padding:13px}.mini-grid{grid-template-columns:repeat(9,minmax(0,1fr))}.options{grid-template-columns:1fr}.practice-header{flex-wrap:wrap}.result{padding:16px}.question-actions button{flex:1}.question-actions .bookmark{flex:0}.page-head{margin-bottom:20px}}
@media(max-width:360px){.sidebar nav a{font-size:.75rem}.number-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.mini-grid{grid-template-columns:repeat(7,minmax(0,1fr))}.result-actions{flex-wrap:wrap}.result-actions small{width:100%;margin-left:0}}

/* Paper view follows the reading order of a printed question paper. */
.math-frac{display:inline-grid;grid-template-rows:auto auto;vertical-align:middle;text-align:center;line-height:1.18;margin:0 .12em;white-space:nowrap;font-family:"Cambria Math","Times New Roman",serif;font-size:.98em}
.math-frac>span:first-child{border-bottom:1px solid currentColor;padding:0 .16em .08em}
.math-frac>span:last-child{padding:.08em .16em 0}
.math-parallel{display:inline-block;font-family:"Times New Roman",serif;font-style:italic;margin:0 .16em;white-space:nowrap}
.math-relation{display:inline-block;white-space:nowrap}
.math-op,.math-unary{font-family:"Cambria Math","Times New Roman",serif;font-style:normal;white-space:nowrap}
.math-op{display:inline-block;margin:0 .12em}
var{font-family:"Cambria Math","Times New Roman",serif;font-style:italic;font-weight:400}
sup{font-size:.72em;line-height:0}
.practice-layout{grid-template-columns:minmax(0,1fr) 182px;gap:19px}
.practice-main{padding:38px 52px;border-radius:0;background:#fff;color:#111;font-family:"Noto Serif TC","PMingLiU","Cambria Math",serif}
.exam-title{text-align:center;border-bottom:1px solid #222;padding:12px 0 25px;margin-bottom:25px}
.exam-title span{font:700 .78rem "Noto Sans TC","Microsoft JhengHei",sans-serif;color:#53636b}
.exam-title h1{font-size:1.5rem;line-height:1.7;margin:13px 0 8px;letter-spacing:0}
.exam-title p{font-size:.9rem;margin:0}
.exam-section{font-size:1.03rem;line-height:1.5;margin:28px 0 16px;padding:7px 0;border-bottom:1px solid #222}
.exam-question{scroll-margin-top:20px;padding:7px 0 27px;margin-bottom:22px;border-bottom:1px solid #d7d7d7;break-inside:avoid}
.exam-body{display:grid;grid-template-columns:2.3em minmax(0,1fr);gap:0;line-height:1.9}
.exam-body h2{font:400 1rem/1.9 "Times New Roman",serif;margin:0}
.exam-content{min-width:0;overflow-wrap:anywhere}
.exam-stem{margin:0 0 10px;font-size:1rem;line-height:1.9}
.exam-parts{display:grid;gap:8px;margin:10px 0 16px}
.exam-part{display:grid;grid-template-columns:2.4em minmax(0,1fr);gap:3px;line-height:1.85}
.exam-part p{margin:0}
.exam-marks{text-align:right;font-size:.94rem;margin:8px 0 0}
.options{display:grid;grid-template-columns:1fr;gap:0;margin:13px 0 8px;padding-left:1.5em}
.options label{border:0;border-radius:0;min-height:42px;padding:5px 8px;align-items:baseline;gap:15px;line-height:1.8}
.options label:hover{background:#f4f7f7}
.options label.chosen{border:0;background:#e8f4f1}
.options label input{position:absolute;opacity:0;width:1px;height:1px}
.options label:focus-within{outline:2px solid #087d70;outline-offset:1px}
.options b{font:700 1rem "Times New Roman",serif;color:#111;min-width:1.3em}
.options label.chosen b{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.answer-field{display:block;max-width:none;margin:18px 0 0;font:400 .86rem "Noto Sans TC","Microsoft JhengHei",sans-serif;color:#53636b}
.answer-field span{display:block;margin-bottom:5px}
.answer-field textarea{display:block;width:100%;resize:vertical;min-height:170px;border:0;border-radius:0;padding:0 5px;background:repeating-linear-gradient(to bottom,transparent 0,transparent 32px,#b9c3c5 33px,#b9c3c5 34px);line-height:34px;font:1rem/34px "Noto Serif TC","PMingLiU",serif;color:#111}
.answer-field textarea:focus{outline:2px solid #087d70;outline-offset:2px}
.study-tools{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-top:16px;font:400 .85rem "Noto Sans TC","Microsoft JhengHei",sans-serif}
.study-tools button{min-height:38px;padding:7px 12px}
.study-tools .bookmark{margin-left:auto}
.hints,.feedback,.worked-answer{font-family:"Noto Sans TC","Microsoft JhengHei",sans-serif;font-size:.9rem}
.worked-answer{border-top:1px solid #dce5e9;margin-top:15px;padding-top:10px;color:#34515a}
.worked-answer summary{cursor:pointer}
.worked-answer p{margin:10px 0}
.feedback{margin-top:14px}
.solution-steps{font-family:"Times New Roman","PMingLiU","新細明體",serif;font-size:17px;line-height:1.95;overflow-wrap:anywhere}
.solution-steps p{margin:12px 0}
.question-data{width:100%;font-size:17px;table-layout:fixed}
.question-data th{width:6em}
.question-data th,.question-data td{padding:7px 5px;overflow-wrap:anywhere}
.exam-result{margin:22px 0;font:700 1rem "Noto Sans TC","Microsoft JhengHei",sans-serif}
.question-nav{border-radius:0}
.number-grid button.answered,.mini-grid button.answered{background:#eaf5f2;border-color:#8bbdb5}
.diagram{margin:16px auto;max-width:365px;text-align:center}
.diagram svg{background:#fff;border:0}
.diagram path,.diagram circle{vector-effect:non-scaling-stroke}
.diagram text{font-family:"Cambria Math","Times New Roman",serif;font-style:italic}
.diagram figcaption{font-size:.78rem;color:#222}
.exam-table,.stemleaf{border-collapse:collapse;margin:14px auto 18px;font-size:.9rem;max-width:100%}
.exam-table th,.exam-table td{border:1px solid #222;padding:5px 10px;text-align:center;font-weight:400}
.stemleaf th,.stemleaf td{padding:3px 15px;text-align:left;font-weight:400}
.stemleaf th:first-child{border-right:1px solid #222;text-align:center}
.stemleaf thead{border-bottom:1px solid #222}
.key{text-align:center;font-size:.78rem;margin:-10px 0 14px}
@media(max-width:900px){
  .practice-layout{grid-template-columns:minmax(0,1fr)}
  .question-nav{order:-1;position:static}
  .question-nav h3,.question-nav p{display:none}
  .mini-grid{display:flex;overflow-x:auto;gap:5px;padding-bottom:3px}
  .mini-grid button{flex:0 0 35px}
}
@media(max-width:600px){
  .practice-main{padding:22px 16px}
  .exam-title{padding:5px 0 18px}
  .exam-title h1{font-size:1.24rem}
  .exam-body{grid-template-columns:1.8em minmax(0,1fr)}
  .exam-stem{font-size:.96rem}
  .exam-part{grid-template-columns:2em minmax(0,1fr)}
  .options{padding-left:0}
  .options label{padding:7px 4px;gap:10px}
  .math-frac{font-size:.94em}
  .exam-table th,.exam-table td{padding:4px 5px;font-size:.78rem}
  .study-tools button{flex:0 1 auto}
}
@media print{
  @page{size:A4;margin:17mm 15mm}
  .sidebar,.topbar,.question-nav,.practice-header,.study-tools,.hints,.feedback,.worked-answer,.finish,footer{display:none!important}
  #app{display:block}.workspace{display:block}main{padding:0;max-width:none}.practice-layout{display:block}.practice-main{border:0;padding:0}.exam-question{break-inside:avoid}
}
.practice-main,.exam-stem,.exam-part,.exam-title h1,.exam-section,.options label,.exam-marks,.exam-table,.stemleaf,.key{font-family:"Times New Roman","PMingLiU","新細明體",serif}
.math-frac,var,.diagram text{font-family:"Times New Roman",serif}
.answer-field textarea{font-family:"Times New Roman","PMingLiU","新細明體",serif}
.dse-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid #d5e1e6;padding:18px 0;margin-bottom:24px}
.dse-summary>div{display:grid;gap:2px;padding:0 20px;border-right:1px solid #d5e1e6}
.dse-summary>div:first-child{padding-left:0}.dse-summary>div:last-child{border:0}
.dse-summary strong{font:700 1.6rem "Times New Roman",serif}.dse-summary span{font-size:.8rem;color:#61747e}
.dse-controls{display:grid;grid-template-columns:180px minmax(220px,1fr);gap:15px;margin-bottom:20px}
.dse-controls label{display:grid;gap:6px;font-size:.8rem;font-weight:700}
.dse-controls select,.dse-controls input{min-width:0;width:100%;height:42px;border:1px solid #cbd7da;border-radius:5px;background:white;padding:7px 10px}
.dse-tabs{display:flex;gap:4px;border-bottom:1px solid #cbd7da;margin-bottom:21px}
.dse-tabs button{min-height:40px;padding:7px 18px;border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;color:#50646b}
.dse-tabs button[aria-pressed=true]{border-bottom-color:#087d70;color:#087d70}
.dse-heading{display:flex;justify-content:space-between;align-items:baseline;gap:15px;margin-bottom:14px}
.dse-heading h2{margin:0}.dse-heading span{font-size:.8rem;color:#61747e;text-align:right}
.dse-legend{display:flex;gap:18px;flex-wrap:wrap;color:#61747e;font-size:.78rem;margin-bottom:10px}
.dse-legend span{display:flex;align-items:center;gap:6px}
.dse-legend i{width:10px;height:10px;display:inline-block}
.dse-legend .a,.dse-bar .a{background:#138474}.dse-legend .b,.dse-bar .b{background:#d5ab42}
.dse-distribution{border:1px solid #d5e1e6;padding:6px 16px}
.dse-row{display:grid;grid-template-columns:30px minmax(160px,1.2fr) minmax(70px,2fr) 36px;gap:12px;align-items:center;min-height:46px;border-bottom:1px solid #e8eded}
.dse-row:last-child{border:0}.dse-row>span{font:.79rem "Times New Roman",serif;color:#819096}
.dse-row button{min-height:42px;border:0;border-radius:0;background:transparent;color:#20313a;text-align:left;padding:5px 0;font-weight:500}
.dse-row button:hover,.dse-row button[aria-expanded=true]{color:#087d70;text-decoration:underline}
.dse-row b{font:700 .9rem "Times New Roman",serif;text-align:right}
.dse-bar{display:flex;height:10px;overflow:hidden;background:#eef2f2}.dse-bar span{height:100%;flex:none}
.dse-pages{display:flex;align-items:center;justify-content:center;gap:15px;margin:15px 0 24px;font-size:.85rem}
.dse-pages button{min-width:35px;min-height:35px;padding:0;background:white;color:#176c66;border:1px solid #cbdde0}
.dse-detail{border-top:1px solid #cbd7da;padding-top:22px;margin-top:26px;scroll-margin-top:20px}
.dse-detail-head{display:flex;justify-content:space-between;gap:15px}.dse-detail-head h2{margin:0 0 4px}.dse-detail-head p{font-size:.82rem;color:#61747e;margin:0 0 14px}
.dse-detail-head button{width:36px;min-width:36px;height:36px;min-height:36px;padding:0;background:white;color:#176c66;border:1px solid #cbdde0}
.dse-examples{border-top:1px solid #e3e9eb;margin-top:13px}
.dse-example{display:grid;grid-template-columns:145px minmax(0,1fr);gap:16px;padding:10px 0;border-bottom:1px solid #e3e9eb;font-size:.86rem}
.dse-example strong{font-weight:600}.dse-example span{color:#4b626a}
.dse-detail .subtle{margin-top:8px}.note a{color:#087d70;text-decoration:underline}
@media(max-width:600px){
  .dse-summary>div{padding:0 8px}.dse-summary strong{font-size:1.3rem}.dse-summary span{font-size:.68rem}
  .dse-controls{grid-template-columns:minmax(0,1fr)}
  .dse-tabs{justify-content:space-between}.dse-tabs button{padding:7px 10px}
  .dse-heading{align-items:start}.dse-heading span{max-width:130px}
  .dse-legend{gap:10px;font-size:.72rem}
  .dse-distribution{padding:5px 8px}.dse-row{grid-template-columns:20px minmax(94px,1.4fr) minmax(30px,1fr) 27px;gap:5px}
  .dse-row button{font-size:.79rem}
  .dse-example{grid-template-columns:105px minmax(0,1fr);gap:8px;font-size:.78rem}
}
/* Keep the interactive controls outside the visual rhythm of the question paper. */
.practice-main{width:100%;max-width:850px;min-width:0;margin:0 auto;padding:45px 52px;container-type:inline-size}
.exam-title{text-align:left;border:0;margin:0 0 38px;padding:0}
.exam-title span{display:block;text-align:center;margin-bottom:36px}
.exam-title h1{text-align:center;margin:0 0 36px;font-size:1.45rem;line-height:1.7}
.exam-title p{font-weight:700;font-size:.94rem;line-height:1.55;margin:0}
.exam-section{border:0;margin:34px 0 35px;padding:0;font-size:1.06rem}
.exam-question{border:0;padding:0;margin:0 0 65px}
.exam-body{grid-template-columns:3em minmax(0,1fr);line-height:1.9}
.exam-body h2{font-size:1.12rem;line-height:1.9}
.exam-stem{font-size:1.12rem;line-height:1.9;margin:0}
.exam-statements{display:grid;gap:6px;margin:16px 0 0 1.4em}
.exam-statements>span{display:grid;grid-template-columns:2.5em minmax(0,1fr)}
.exam-statements b{font-weight:400}
.options{display:grid;gap:4px;margin:20px 0 0 3.3em;padding:0}
.options label{display:grid;grid-template-columns:2.5em minmax(0,1fr);align-items:baseline;gap:0;min-height:0;padding:8px 6px;border:0;line-height:1.8;font-size:1.1rem}
.options b{font-weight:400}
.option-stop{margin-left:.8em}
.options label:hover{background:#f5f8f7}
.options label.chosen{background:#edf5f2}
.study-tools{border-top:1px dotted #d1d8d8;padding-top:10px;margin:17px 0 0 3em}
.diagram{width:min(100%,390px);margin:20px auto 17px}
.exam-choice-layout{display:grid;grid-template-columns:minmax(0,1fr);align-items:start;gap:20px;margin-top:18px}
.exam-choice-layout .options{margin:0}
.exam-choice-layout .diagram{order:-1;margin:0 auto 8px}
@container(min-width:560px){
  .exam-choice-layout{grid-template-columns:minmax(170px,1fr) minmax(230px,390px)}
  .exam-choice-layout .diagram{order:0}
}
@media(max-width:760px){
  .exam-choice-layout{grid-template-columns:minmax(0,1fr);gap:8px}
  .exam-choice-layout .diagram{order:-1;margin:0 auto 5px}
}
@media(max-width:600px){
  main{padding-inline:10px}
  .practice-main{padding:26px 12px}
  .exam-title span{margin-bottom:24px}
  .exam-title h1{margin-bottom:27px}
  .exam-question{margin-bottom:42px}
  .exam-body{grid-template-columns:2em minmax(0,1fr)}
  .exam-stem,.exam-body h2{font-size:1.04rem}
  .exam-statements{margin-left:.5em}
  .exam-statements>span{grid-template-columns:2em minmax(0,1fr)}
  .options{margin-left:.4em}
  .options label{grid-template-columns:2em minmax(0,1fr);padding:8px 2px;font-size:1.04rem}
  .study-tools{margin-left:2em}
}
@media print{
  .practice-main{max-width:none;padding:0}
  .exam-question{break-inside:avoid}
}
.year-controls{display:flex;align-items:end;gap:8px;margin-bottom:21px}
.year-controls label{display:grid;gap:5px;font-size:.8rem;font-weight:700;color:#526771}
.year-controls select{min-width:140px;min-height:42px;border:1px solid #cbd7da;border-radius:5px;background:white;padding:7px 10px;color:#20313a}
.year-controls button{width:42px;min-width:42px;min-height:42px;padding:0;background:white;color:#087d70;border:1px solid #cbd7da;font-size:1.3rem}
.year-controls a{margin-left:auto;color:#087d70;font-size:.85rem;font-weight:700;text-decoration:underline}
.year-summary{display:flex;border-block:1px solid #d5e1e6;padding:17px 0;margin-bottom:22px}
.year-summary>div{display:grid;gap:2px;min-width:150px;padding:0 22px;border-right:1px solid #d5e1e6}
.year-summary>div:first-child{padding-left:0}.year-summary>div:last-child{border:0}
.year-summary strong{font:700 1.6rem "Times New Roman",serif}.year-summary span{font-size:.8rem;color:#61747e}
.year-tabs{display:flex;gap:3px;border-bottom:1px solid #cbd7da;margin-bottom:20px}
.year-tabs button{min-height:41px;padding:7px 16px;border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;color:#50646b}
.year-tabs button[aria-pressed=true]{border-bottom-color:#087d70;color:#087d70}
.year-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px}
.year-heading h2{margin:0}.year-heading span{font-size:.8rem;color:#61747e}
.year-legend{display:flex;gap:18px;margin-bottom:9px;color:#61747e;font-size:.78rem}
.year-legend span{display:flex;align-items:center;gap:6px}.year-legend i{display:inline-block;width:10px;height:10px}
.year-legend .a{background:#138474}.year-legend .b{background:#c67d67}
.year-list{border-top:1px solid #cbd7da}
.year-row{display:grid;grid-template-columns:minmax(140px,1.1fr) minmax(70px,1fr) 32px minmax(150px,1.35fr);gap:12px;align-items:center;min-height:50px;border-bottom:1px solid #e3e9eb}
.year-row button{min-height:45px;text-align:left;background:transparent;border:0;border-radius:0;color:#20313a;font-weight:600;padding:5px 0}
.year-row button:hover,.year-row button[aria-expanded=true]{color:#087d70;text-decoration:underline}
.year-bar{display:flex;height:10px;overflow:hidden;background:#eef2f2}
.year-bar span{height:100%;flex:none}.year-bar .a1,.year-bar .a{background:#138474}.year-bar .a2{background:#ddba47}.year-bar .b{background:#c67d67}
.year-row b{font:700 .9rem "Times New Roman",serif;text-align:right}
.year-refs{font-size:.8rem;color:#526771;line-height:1.6}
.year-detail{border-top:1px solid #cbd7da;margin-top:26px;padding-top:22px;scroll-margin-top:20px}
.year-detail .dse-detail-head{align-items:start}
@media(max-width:600px){
  .year-controls{flex-wrap:wrap}.year-controls a{width:100%;margin:5px 0 0}
  .year-summary>div{min-width:0;flex:1;padding:0 9px}.year-summary strong{font-size:1.3rem}.year-summary span{font-size:.68rem}
  .year-tabs{justify-content:space-between}.year-tabs button{padding:7px 5px;font-size:.78rem}
  .year-heading h2{font-size:1.1rem}
  .year-legend{gap:10px;font-size:.7rem;flex-wrap:wrap}
  .year-row{grid-template-columns:minmax(110px,1fr) minmax(55px,.75fr) 24px;gap:7px;padding:5px 0}
  .year-row button{font-size:.85rem}.year-refs{grid-column:1/-1;font-size:.76rem;padding-bottom:4px}
}