@charset "UTF-8";
/* Three complete visual systems share component anatomy and semantic states. */
html[data-theme="cartoon"]{--bg:#fff9ed;--paper:#fffef9;--ink:#173e40;--muted:#627574;--line:#d8e1d4;--green:#087b6a;--green-dark:#076358;--lime:#f1ce66;--mint:#edf4e7;--peach:#fff0d6;--purple:#f3e9ff;--blue:#e2f2fa;--radius:9px;--shadow:0 3px 0 #dfe6da;--primary:#e76628;--primary-dark:#bd4815;--primary-shadow:#bd4815;--surface:#fffef9;--surface-soft:#fff6df;--edge:#d8e1d4;--card-radius:9px;--control-radius:6px;--hero:url('./assets/hero-cartoon.png');--hero-position:center;--headline-weight:900;--body-weight:500}
html[data-theme="fresh"]{--bg:#fafaf3;--paper:#fffef9;--ink:#213f37;--muted:#667e70;--line:#d4dfcf;--green:#287c61;--green-dark:#1b604c;--lime:#e7e9bb;--mint:#ecf3e9;--peach:#f8edda;--purple:#eeeaf3;--blue:#e5efed;--radius:16px;--shadow:0 8px 25px #4b64520d;--primary:#287c61;--primary-dark:#1b604c;--primary-shadow:#1d604a;--surface:#fffef9;--surface-soft:#f4f6ec;--edge:#c4d5c4;--card-radius:17px;--control-radius:10px;--hero:url('./assets/hero-fresh.png');--hero-position:center;--headline-weight:700;--body-weight:400}
html[data-theme="tech"]{--bg:#f5f8ff;--paper:#fff;--ink:#182f53;--muted:#61738e;--line:#d7e2f6;--green:#345fdb;--green-dark:#274ebd;--lime:#dceaff;--mint:#e9f2ff;--peach:#eaf7ff;--purple:#eff0ff;--blue:#e2f2ff;--radius:13px;--shadow:0 10px 28px #375abb12;--primary:#345fdb;--primary-dark:#274ebd;--primary-shadow:#244ca9;--surface:#fff;--surface-soft:#eff6ff;--edge:#c8d9fa;--card-radius:13px;--control-radius:9px;--hero:url('./assets/hero-tech.png');--hero-position:center;--headline-weight:800;--body-weight:400}
html[data-theme] body{background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;font-weight:var(--body-weight)}
html[data-theme] h1,html[data-theme] h2,html[data-theme] h3{color:var(--ink)}
html[data-theme] h1,html[data-theme] h2{font-weight:var(--headline-weight)}
html[data-theme] button:focus-visible,html[data-theme] a:focus-visible,html[data-theme] input:focus-visible,html[data-theme] select:focus-visible,html[data-theme] textarea:focus-visible{outline:3px solid var(--primary);outline-offset:3px}
html[data-theme] .icon{display:inline-flex;align-items:center;justify-content:center;width:auto;height:auto;font-size:1.2em;line-height:1;stroke:none;flex-shrink:0}
html[data-theme] .brand{font-size:23px;letter-spacing:.2px;line-height:1.15}
html[data-theme] .brand-mark{width:40px;height:40px;border-radius:11px;background:#084b52;color:#f4d46b;font-size:24px;box-shadow:0 3px 0 #063d42}
html[data-theme="tech"] .brand-mark{background:#294fbe;color:#c9ecff;box-shadow:0 3px 0 #1a3b9c}
html[data-theme="fresh"] .brand-mark{background:#2d6d58;color:#f5d790;box-shadow:none}
html[data-theme] .brand small{font-size:9px;letter-spacing:1.8px;color:var(--muted)}
html[data-theme] .sidebar,html[data-theme] .panel,html[data-theme] .bank-card,html[data-theme] .question-row,html[data-theme] .table-wrap,html[data-theme] .stat,html[data-theme] .leaderboard,html[data-theme] .review-item,html[data-theme] .solution-panel{background:var(--surface);border-color:var(--line);border-radius:var(--card-radius)}
html[data-theme] .sidebar{border-radius:0;border-right:1px solid var(--line)}
html[data-theme="cartoon"] .sidebar{background:#fffaf0}
html[data-theme="tech"] .sidebar{background:#fdfdff}
html[data-theme] .nav a{font-size:14px;min-height:45px;color:var(--muted);border-radius:var(--control-radius)}
html[data-theme] .nav a.active{background:var(--mint);color:var(--green)}
html[data-theme="cartoon"] .nav a.active{box-shadow:inset 3px 0 0 var(--primary)}
html[data-theme] .nav a:hover{background:var(--surface-soft)}
html[data-theme] .topbar{border-color:var(--line)}
html[data-theme] .tag{border-radius:999px;font-size:12px;padding:5px 11px;background:var(--surface-soft);color:var(--muted);font-weight:700}
html[data-theme] .tag.green{background:var(--mint);color:var(--green)}
html[data-theme] .tag.orange{background:var(--peach);color:#aa5828}
html[data-theme] .tag.purple{background:var(--purple);color:#78649b}
html[data-theme] .tag.blue{background:var(--blue);color:#3b6c9c}
html[data-theme] .btn{border-radius:var(--control-radius);font-weight:700;min-height:44px;font-size:calc(14px + var(--reading-extra,0px));transition:transform .16s,background .16s,box-shadow .16s;touch-action:manipulation}
html[data-theme] .btn.primary{background:var(--primary);color:white;border:1px solid var(--primary-dark);box-shadow:0 3px 0 var(--primary-shadow)}
html[data-theme] .btn.primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px)}
html[data-theme] .btn.primary:active{transform:translateY(2px);box-shadow:none}
html[data-theme] .btn.secondary{background:var(--surface);border:1.5px solid var(--edge);color:var(--ink)}
html[data-theme="cartoon"] .btn.secondary{box-shadow:0 3px 0 #d4e5d4}
html[data-theme] .btn.ghost{color:var(--muted)}
html[data-theme] .btn.danger{color:#a93d3d;background:#fff0ec}
html[data-theme] .btn.big{font-size:calc(18px + var(--reading-extra,0px));min-height:52px;padding:12px 22px}
html[data-theme] .btn.small{font-size:calc(13px + var(--reading-extra,0px));min-height:38px}
html[data-theme] .icon-btn{min-width:44px;min-height:44px;color:var(--green);border-radius:var(--control-radius)}
html[data-theme] .icon-btn:hover{background:var(--mint)}
html[data-theme] input,html[data-theme] select,html[data-theme] textarea{background:var(--surface);border:1.5px solid var(--edge);border-radius:var(--control-radius);font-size:calc(15px + var(--reading-extra,0px));min-height:44px;color:var(--ink)}
html[data-theme] input:focus,html[data-theme] select:focus,html[data-theme] textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 16%,transparent)}
html[data-theme] label{font-size:calc(14px + var(--reading-extra,0px))}
html[data-theme] .field small{font-size:calc(12px + var(--reading-extra,0px));line-height:1.5}
html[data-theme] .notice{background:var(--surface-soft);border-color:var(--line);color:var(--muted);border-radius:var(--control-radius);font-size:13px}
html[data-theme] .notice strong{color:var(--ink)}
html[data-theme] .modal-head,html[data-theme] .modal-body .form-actions{border-color:var(--line);background:var(--surface)}
html[data-theme] dialog{background:var(--surface);border-color:var(--edge);border-radius:var(--card-radius)}
html[data-theme] .mode-option{border-color:var(--edge);border-radius:var(--control-radius);color:var(--muted);background:var(--surface)}
html[data-theme] .mode-option.active{background:var(--mint);border-color:var(--green);color:var(--green)}
html[data-theme] .table-wrap th{background:var(--surface-soft);color:var(--muted)}
html[data-theme] .table-wrap td{border-color:var(--line)}
html[data-theme] .question-content h3{font-size:16px;line-height:1.6}
html[data-theme] .question-content p{font-size:13px}
html[data-theme] .q-num{background:var(--mint);color:var(--green);font-size:13px}
html[data-theme] .page-heading h1{font-size:calc(30px + var(--reading-heading-extra,0px))}
html[data-theme] .page-heading p{font-size:calc(14px + var(--reading-extra,0px))}
html[data-theme] .section-head h2{font-size:calc(21px + var(--reading-heading-extra,0px))}
html[data-theme] .section-head p{font-size:calc(13px + var(--reading-extra,0px))}
html[data-theme] .stat,html[data-theme] .bank-card,html[data-theme] .mode-card,html[data-theme] .question-row{box-shadow:var(--shadow)}
html[data-theme="fresh"] .stat,html[data-theme="fresh"] .bank-card,html[data-theme="fresh"] .mode-card,html[data-theme="fresh"] .question-row{box-shadow:0 4px 16px #3f684a0c}
html[data-theme="tech"] .stat,html[data-theme="tech"] .bank-card,html[data-theme="tech"] .mode-card,html[data-theme="tech"] .question-row{box-shadow:0 5px 18px #3f62bd10}
html[data-theme] .stat-icon{background:var(--mint);color:var(--green)}
html[data-theme] .stat:nth-child(2) .stat-icon{background:var(--peach);color:var(--primary)}
html[data-theme] .stat:nth-child(3) .stat-icon{background:var(--purple);color:#7d69a7}
html[data-theme] .stat:nth-child(4) .stat-icon{background:var(--blue);color:#4277b2}
html[data-theme] .mode-card{background:var(--surface);border-color:var(--line);border-radius:var(--card-radius)}
html[data-theme] .mode-card:hover{border-color:var(--primary)}
html[data-theme] .mode-symbol{background:var(--peach);color:var(--primary);border-radius:var(--control-radius)}
html[data-theme] .mode-card:nth-child(2) .mode-symbol{background:var(--purple);color:#7c6bac}
html[data-theme] .mode-card:nth-child(3) .mode-symbol{background:var(--blue);color:#477db0}
html[data-theme] .mode-symbol .icon{font-size:26px}
html[data-theme] .hero{border:1.5px solid var(--edge);background:var(--surface-soft) var(--hero) var(--hero-position)/cover no-repeat;border-radius:var(--card-radius);min-height:260px;box-shadow:var(--shadow)}
html[data-theme] .hero-art{display:none}
html[data-theme] .hero-copy{padding:28px 34px;max-width:56%}
html[data-theme] .hero h2{color:var(--ink);font-size:26px;line-height:1.4}
html[data-theme] .hero p{color:var(--muted);font-size:14px;line-height:1.7}
html[data-theme] .hero .eyebrow{color:var(--green)}
html[data-theme] .login-story{background:var(--surface-soft) var(--hero) right center/auto 100% no-repeat;justify-content:flex-start;min-height:540px}
html[data-theme] .login-story h1{max-width:330px;line-height:1.4}
html[data-theme] .login-story p{font-size:15px;color:var(--muted)}
html[data-theme] .bank-cover{background:var(--mint);color:var(--ink)}
html[data-theme] .bank-cover.peach{background:var(--peach)}
html[data-theme] .bank-cover.lavender{background:var(--purple)}
html[data-theme] .bank-cover.blue{background:var(--blue)}
html[data-theme] .bank-cover .cover-character{color:var(--green);opacity:.7}
html[data-theme] .bank-info h3{font-size:18px}
html[data-theme] .bank-info p{font-size:14px}
html[data-theme] .bank-meta{font-size:13px}
html[data-theme] .personal-main{max-width:1500px;padding:12px 30px 58px}
html[data-theme] .public-header{max-width:1500px;padding:18px 30px 14px;gap:20px}
html[data-theme] .header-right{flex-wrap:wrap;justify-content:flex-end}
html[data-theme] .theme-select-label{display:inline-flex;align-items:center;gap:7px;margin:0;font-size:12px;color:var(--muted);white-space:nowrap}
html[data-theme] .theme-select-label select{width:auto;min-width:125px;max-width:180px;font-size:12px;min-height:36px;padding:5px 26px 5px 9px;background:var(--surface)}
html[data-theme] .personal-intro{text-align:left;max-width:none;min-height:370px;margin:5px 0 24px;border:1.5px solid var(--edge);border-radius:var(--card-radius);background:var(--surface-soft) var(--hero) var(--hero-position)/cover no-repeat;box-shadow:var(--shadow);display:flex;align-items:center;overflow:hidden}
html[data-theme] .intro-copy{padding:32px clamp(22px,3vw,48px);width:min(53%,650px);position:relative;z-index:1}
html[data-theme] .personal-intro .tag{margin-bottom:18px;letter-spacing:.3px;font-size:13px;background:var(--mint);color:var(--green)}
html[data-theme] .personal-intro h1{font-size:clamp(35px,3.7vw,56px);line-height:1.26;letter-spacing:.5px;color:var(--ink)}
html[data-theme] .personal-intro h1 em{color:var(--green)}
html[data-theme] .personal-intro p{font-size:17px;line-height:1.8;color:var(--ink);margin-top:13px}
html[data-theme] .intro-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
html[data-theme] .learning-path{background:var(--surface);border:1.5px solid var(--edge);border-radius:var(--card-radius);padding:24px 26px 28px;box-shadow:var(--shadow);margin-bottom:32px}
html[data-theme] .learning-path .section-head{margin-bottom:3px}
html[data-theme] .learning-path-visual{height:210px;background:url('./assets/quest-path.png') center 4%/100% auto no-repeat}
html[data-theme="fresh"] .learning-path-visual,html[data-theme="tech"] .learning-path-visual{display:none}
html[data-theme] .path-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
html[data-theme] .path-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 13px;align-content:start;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--card-radius);padding:18px;min-height:165px}
html[data-theme="cartoon"] .path-card{background:#fffdf7;box-shadow:0 4px 0 #efe8d4}
html[data-theme] .path-number{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--green);color:white;font-size:20px;font-weight:800;grid-row:span 2}
html[data-theme] .path-card:nth-child(2) .path-number{background:var(--primary)}
html[data-theme] .path-card:nth-child(3) .path-number{background:#3999cc}
html[data-theme] .path-card h3{font-size:19px;line-height:1.4}
html[data-theme] .path-card p{font-size:13px;color:var(--muted);line-height:1.5;margin:5px 0}
html[data-theme] .path-card small{font-size:12px}
html[data-theme] .path-card .btn{grid-column:2;justify-self:start;margin-top:4px}
html[data-theme] .station-section{scroll-margin-top:22px}
html[data-theme] .solo-modes{margin:16px 0 30px;gap:16px}
html[data-theme] .solo-mode{background:var(--mint);border:2px solid var(--edge);border-radius:var(--card-radius);box-shadow:var(--shadow);padding:17px 21px;min-height:96px}
html[data-theme] .solo-mode.quest{background:var(--peach)}
html[data-theme] .solo-mode.active,html[data-theme] .solo-mode.quest.active{border-color:var(--primary)}
html[data-theme] .solo-mode h3{font-size:20px}
html[data-theme] .solo-mode p{font-size:14px;color:var(--muted)}
html[data-theme] .solo-mode .mode-symbol{width:55px;height:55px;background:var(--surface);color:var(--green)}
html[data-theme] .solo-mode.quest .mode-symbol{color:var(--primary)}
html[data-theme] .solo-mode .check-ring{width:27px;height:27px;display:grid;place-items:center}
html[data-theme] .solo-mode.active .check-ring{background:var(--green);color:white}
html[data-theme] .personal-main .bank-card{border:1.5px solid var(--edge)}
html[data-theme] .personal-main .bank-info h3{font-size:18px}
html[data-theme] .personal-main .bank-info p{color:var(--muted)}
html[data-theme] .personal-main .bank-cover{height:88px}
html[data-theme] .theme-settings{grid-column:1/-1}
html[data-theme] .theme-settings>p{font-size:14px;margin:6px 0 18px}
html[data-theme] .theme-preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:20px}
html[data-theme] .theme-preview{display:flex;flex-direction:column;gap:5px;margin:0;padding:10px;border:2px solid var(--line);border-radius:var(--card-radius);cursor:pointer;background:var(--surface)}
html[data-theme] .theme-preview.active{border-color:var(--primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--primary) 14%,transparent)}
html[data-theme] .theme-preview input{position:absolute;opacity:0;width:1px;height:1px}
html[data-theme] .theme-preview-image{display:block;height:115px;border-radius:calc(var(--card-radius) - 6px);background-position:center;background-size:cover}
html[data-theme] .theme-cartoon{background-image:url('./assets/hero-cartoon.png')}
html[data-theme] .theme-fresh{background-image:url('./assets/hero-fresh.png')}
html[data-theme] .theme-tech{background-image:url('./assets/hero-tech.png')}
html[data-theme] .theme-preview strong{font-size:16px;padding:3px 5px 0}
html[data-theme] .theme-preview small{font-size:12px;padding:0 5px 5px}
html[data-theme] .play-page{background:var(--bg);padding:15px 28px 24px}
html[data-theme] .play-top{max-width:1600px;margin-bottom:13px}
html[data-theme] .play-top h2{font-size:20px}
html[data-theme] .play-top small{font-size:13px;color:var(--muted)}
html[data-theme] .play-body{max-width:1600px}
html[data-theme] .play-status{margin-bottom:12px}
html[data-theme] .progress-track{background:var(--line);height:9px}
html[data-theme] .progress-fill{background:var(--primary)}
html[data-theme] .timer{font-size:24px;color:var(--green)}
html[data-theme] .question-stage{background:var(--surface);border:2px solid var(--edge);border-radius:var(--card-radius);box-shadow:var(--shadow);padding:19px 24px;margin-bottom:13px}
html[data-theme] .question-stage h1{color:var(--ink);font-size:calc(clamp(30px,2.8vw,45px) + var(--reading-heading-extra,0px));line-height:1.35;margin:8px auto 4px}
html[data-theme] .question-stage p{font-size:calc(16px + var(--reading-extra,0px));color:var(--muted)}
html[data-theme] .player-grid{gap:12px}
html[data-theme] .player-panel{background:var(--mint);border:2px solid var(--edge);border-radius:var(--card-radius);padding:16px;box-shadow:var(--shadow)}
html[data-theme] .player-panel:nth-child(2n){background:var(--blue);border-color:#a8cbe8}
html[data-theme] .player-panel:nth-child(3n){background:var(--peach);border-color:#ebce9e}
html[data-theme] .player-panel:nth-child(4n){background:var(--purple);border-color:#c9b8e4}
html[data-theme="fresh"] .player-panel,html[data-theme="tech"] .player-panel{background:var(--surface);border-color:var(--edge)}
html[data-theme] .player-head{margin-bottom:10px}
html[data-theme] .player-name{font-size:calc(23px + var(--reading-extra,0px));color:var(--ink)}
html[data-theme] .player-score{font-size:27px;color:var(--ink)}
html[data-theme] .player-score small{font-size:14px}
html[data-theme] .answer-option{background:var(--surface);border:2px solid var(--edge);border-radius:var(--control-radius);min-height:64px;padding:12px;font-size:calc(21px + var(--reading-extra,0px));color:var(--ink);box-shadow:0 2px 0 var(--line)}
html[data-theme] .answer-option:hover:not(:disabled){border-color:var(--primary);background:var(--surface-soft)}
html[data-theme] .answer-option.selected{background:var(--mint);border-color:var(--green);box-shadow:0 2px 0 var(--green)}
html[data-theme] .answer-option .letter{background:var(--mint);color:var(--green);border-radius:8px;min-width:34px;height:34px;font-size:17px;font-weight:700}
html[data-theme] .answer-option.selected .letter{background:var(--green);color:white}
html[data-theme] .answer-option.correct-option{background:#dff5e5;border-color:#399a66}
html[data-theme] .answer-option.wrong-option{background:#fff0eb;border-color:#d9685d}
html[data-theme] .answer-area .btn{min-height:50px;font-size:calc(18px + var(--reading-extra,0px))}
html[data-theme] .waiting-answer{min-height:170px;color:var(--muted)}
html[data-theme] .waiting-answer strong{color:var(--ink);font-size:27px}
html[data-theme] .solution-panel{padding:18px 22px}
html[data-theme] .solution-panel h3{font-size:22px;color:var(--green)}
html[data-theme] .solution-panel p{font-size:17px;color:var(--muted)}
html[data-theme] .answer-feedback{background:var(--mint);border-color:var(--edge);color:var(--green);border-radius:var(--control-radius)}
html[data-theme] .answer-feedback.wrong{background:#fff3e9;border-color:#e8bb89;color:#9d5a28}
html[data-theme] .board-lobby{margin:27px auto}
html[data-theme] .board-lobby h1{color:var(--ink)}
html[data-theme] .lobby-player{background:var(--surface);border-color:var(--edge);border-radius:var(--card-radius)}
html[data-theme] .board-notice{color:var(--muted);font-size:13px}
html[data-theme] .finish-head h1{font-size:34px}
html[data-theme] .leader-row{border-color:var(--line)}
html[data-theme] .rank{background:var(--mint);color:var(--green)}
html[data-theme] .review-answer{color:var(--green)!important}
html[data-theme] .quest-stop.current>span{background:var(--mint);border-color:var(--primary);color:var(--green)}
html[data-theme] .quest-stop.done>span{background:var(--peach);border-color:var(--primary);color:var(--primary)}
html[data-theme] .solo-play .player-panel{background:var(--surface)}
html[data-theme] .solo-play .question-stage{padding:25px}
html[data-theme] .solo-play .answer-option{font-size:calc(23px + var(--reading-extra,0px))}
html[data-theme] .personal-history{background:var(--surface)}
html[data-theme] .hero{display:block}
html[data-theme] .hero-copy{max-width:53%}
html[data-theme] .login-story{background:var(--surface-soft);position:relative;isolation:isolate}
html[data-theme] .login-story::after{content:"";position:absolute;inset:auto 0 0;height:55%;background:var(--hero) 62% bottom/cover no-repeat;z-index:-1}
html[data-theme] .login-story h1,html[data-theme] .login-story p,html[data-theme] .login-story .eyebrow{position:relative;z-index:1}
@media(min-width:980px){html[data-theme] .player-grid.count-4{grid-template-columns:repeat(4,minmax(0,1fr))}html[data-theme] .player-grid.count-4 .answers{grid-template-columns:1fr}html[data-theme] .player-grid.count-4 .answer-option{min-height:48px;font-size:calc(17px + var(--reading-extra,0px));padding:8px 10px}html[data-theme] .player-grid.count-4 .player-panel{padding:10px 12px}html[data-theme] .player-grid.count-4 .player-name{font-size:calc(19px + var(--reading-extra,0px))}html[data-theme] .player-grid.count-4 .player-score{font-size:23px}html[data-theme] .player-grid.many{grid-template-columns:repeat(4,minmax(0,1fr))}html[data-theme] .player-grid.many .answer-option{min-height:48px;font-size:calc(16px + var(--reading-extra,0px));padding:7px}html[data-theme] .player-grid.many .player-panel{padding:10px}html[data-theme] .player-grid.many .player-name{font-size:calc(17px + var(--reading-extra,0px))}html[data-theme] .player-grid.many .player-score{font-size:20px}}
@media(max-width:950px){html[data-theme] .personal-intro{min-height:340px}html[data-theme] .intro-copy{width:60%}html[data-theme] .learning-path-visual{height:200px}html[data-theme] .path-cards{gap:9px}html[data-theme] .path-card{padding:12px}html[data-theme] .public-header .tag{display:none}html[data-theme] .theme-select-label span{display:none}html[data-theme] .player-grid.many{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){html[data-theme] .public-header{padding:14px 16px;gap:8px}html[data-theme] .public-header .brand{font-size:16px}html[data-theme] .public-header .brand small{display:none}html[data-theme] .brand-mark{width:32px;height:32px;font-size:18px}html[data-theme] .header-right{gap:5px}html[data-theme] .header-right .btn{padding:5px 8px;font-size:calc(11px + var(--reading-extra,0px));min-height:34px}html[data-theme] .theme-select-label select{min-width:110px;max-width:115px;font-size:11px;min-height:34px}html[data-theme] .personal-main{padding:0 13px 34px}html[data-theme] .personal-intro{min-height:380px;background-size:auto 100%;background-position:57% center;align-items:flex-start}html[data-theme] .intro-copy{width:100%;padding:24px;min-height:380px;background:color-mix(in srgb,var(--surface) 86%,transparent)}html[data-theme] .personal-intro h1{font-size:35px}html[data-theme] .personal-intro p{font-size:15px;max-width:310px}html[data-theme] .intro-actions{gap:8px}html[data-theme] .intro-actions .btn{font-size:calc(13px + var(--reading-extra,0px));min-height:43px;padding:8px 10px}html[data-theme] .learning-path{padding:16px}html[data-theme] .learning-path-visual{height:140px}html[data-theme] .path-cards{grid-template-columns:1fr}html[data-theme] .path-card{min-height:0}html[data-theme] .solo-modes{grid-template-columns:1fr}html[data-theme] .theme-preview-grid{grid-template-columns:1fr}html[data-theme] .theme-preview{flex-direction:row;align-items:center;flex-wrap:wrap}html[data-theme] .theme-preview-image{width:95px;height:65px;flex-shrink:0}html[data-theme] .play-page{padding:12px}html[data-theme] .question-stage h1{font-size:calc(28px + var(--reading-heading-extra,0px))}html[data-theme] .player-grid,html[data-theme] .player-grid.many{grid-template-columns:1fr}html[data-theme] .play-tools .btn{font-size:calc(11px + var(--reading-extra,0px))}html[data-theme] .top-actions .theme-select-label{display:none}}
@media(prefers-reduced-motion:reduce){html[data-theme] *,html[data-theme] *::before,html[data-theme] *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
html[data-theme] #q-options{min-height:116px;line-height:1.65}
html[data-theme] dialog:has(#question-form){width:min(840px,calc(100% - 32px))}
html[data-theme] #question-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px}
html[data-theme] #question-form>.form-grid,html[data-theme] #question-form>.field:has(#q-prompt),html[data-theme] #question-form>.field:has(#q-explanation),html[data-theme] #question-form>.error,html[data-theme] #question-form>.form-actions{grid-column:1/-1}
html[data-theme] #question-form #options-field[hidden]+.field{grid-column:1/-1}
html[data-theme] #question-form #q-prompt,html[data-theme] #question-form #q-explanation{min-height:72px}
html[data-theme] .visual-answer-field #q-answer{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;padding:0;border:0}
html[data-theme] .editor-answer-picker{margin-top:10px}
html[data-theme] .editor-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
html[data-theme] .editor-choice{display:flex;align-items:center;gap:10px;text-align:left;min-height:49px;padding:8px 11px;background:var(--surface);border:1.5px solid var(--edge);border-radius:var(--control-radius);color:var(--ink);font-size:14px;touch-action:manipulation}
html[data-theme] .editor-choice:hover,html[data-theme] .editor-choice.selected{background:var(--mint);border-color:var(--green)}
html[data-theme] .editor-choice.selected{font-weight:700;box-shadow:inset 3px 0 0 var(--green)}
html[data-theme] .editor-choice .choice-letter{width:27px;height:27px;display:grid;place-items:center;flex-shrink:0;border-radius:8px;background:var(--mint);color:var(--green);font-weight:800}
html[data-theme] .editor-choice.selected .choice-letter{background:var(--green);color:white}
html[data-theme] .editor-choice strong{margin-left:auto;color:var(--green)}
html[data-theme] .editor-order-result{padding:10px 12px;margin-bottom:9px;border-radius:var(--control-radius);background:var(--surface-soft);color:var(--muted);font-size:13px;line-height:1.5}
html[data-theme] .editor-order-result span{display:inline-block;margin:2px 5px;padding:3px 7px;background:var(--mint);color:var(--ink);border-radius:7px}
html[data-theme] #toast{background:var(--ink);color:var(--surface);border:1px solid var(--edge);font-size:14px}
html[data-theme] .empty .empty-icon{background:var(--mint);color:var(--green)}
html[data-theme] .empty h3{color:var(--ink)}
@media(min-width:980px) and (max-height:800px){html[data-theme] .play-page{padding-top:9px}html[data-theme] .play-top{margin-bottom:8px}html[data-theme] .play-status{margin-bottom:8px}html[data-theme] .question-stage{padding:10px 18px;margin-bottom:9px}html[data-theme] .question-stage h1{font-size:calc(clamp(26px,2.45vw,36px) + var(--reading-heading-extra,0px));margin:3px auto}html[data-theme] .question-stage p{font-size:calc(13px + var(--reading-extra,0px))}html[data-theme] .player-grid.count-4 .player-head{margin-bottom:6px}html[data-theme] .player-grid.count-4 .order-chosen{min-height:42px;padding:5px;margin-bottom:7px}html[data-theme] .player-grid.count-4 .answers{gap:6px}html[data-theme] .player-grid.count-4 .answer-option{min-height:40px}html[data-theme] .player-grid.count-4 .answer-area .btn{min-height:42px;margin-top:8px;font-size:calc(16px + var(--reading-extra,0px));padding:7px 14px}}
@media(max-width:680px){html[data-theme] #question-form{grid-template-columns:1fr}html[data-theme] .editor-choice-grid{grid-template-columns:1fr}}
/* 白板人数增加时优先保证后排可读和触控尺寸。 */
html[data-theme="fresh"] .player-grid .player-panel,html[data-theme="tech"] .player-grid .player-panel{background:var(--surface);border-color:var(--edge)}
@media(min-width:980px) and (max-width:1699px){
  html[data-theme] .player-grid.count-4,html[data-theme] .player-grid.many{grid-template-columns:repeat(2,minmax(0,1fr))}
  html[data-theme] .player-grid.count-4 .answers,html[data-theme] .player-grid.many .answers{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
  html[data-theme] .player-grid.count-4 .answer-option,html[data-theme] .player-grid.many .answer-option{min-height:50px;font-size:calc(20px + var(--reading-extra,0px));padding:7px 11px}
  html[data-theme] .player-grid.count-4 .player-panel,html[data-theme] .player-grid.many .player-panel{padding:10px 13px}
  html[data-theme] .player-grid.count-4 .player-name,html[data-theme] .player-grid.many .player-name{font-size:calc(21px + var(--reading-extra,0px))}
  html[data-theme] .player-grid.count-4 .player-score,html[data-theme] .player-grid.many .player-score{font-size:23px}
  html[data-theme] .player-grid.count-4 .answer-area .btn,html[data-theme] .player-grid.many .answer-area .btn{min-height:48px;margin-top:8px;font-size:calc(18px + var(--reading-extra,0px));padding:8px 14px}
}
@media(min-width:1700px){
  html[data-theme] .player-grid.count-4,html[data-theme] .player-grid.many{grid-template-columns:repeat(4,minmax(0,1fr))}
  html[data-theme] .player-grid.count-4 .answer-option,html[data-theme] .player-grid.many .answer-option{min-height:64px;font-size:calc(23px + var(--reading-extra,0px));padding:10px 12px}
}
@media(min-width:980px) and (max-width:1699px) and (max-height:800px){
  html[data-theme] .play-top{margin-bottom:4px}
  html[data-theme] .play-status{margin-bottom:4px}
  html[data-theme] .question-stage{padding:7px 14px;margin-bottom:6px}
  html[data-theme] .question-stage h1{line-height:1.22;margin:2px auto}
  html[data-theme] .player-grid.count-4 .player-panel{padding:7px 11px}
  html[data-theme] .player-grid.count-4 .player-head{margin-bottom:3px}
  html[data-theme] .player-grid.count-4 .answers{gap:5px}
  html[data-theme] .player-grid.count-4 .answer-option{min-height:48px}
}

/* 纸张与赛道：更清晰的方形信息面、单排白板席位和大触控词卡。 */
html[data-theme="cartoon"]{--radius:8px;--card-radius:8px;--control-radius:5px;--shadow:0 2px 0 #dce7d8;--seat-1:#21a884;--seat-2:#6689e8;--seat-3:#e8a63d;--focus-ring:#bd4815;--danger:#a43d36;--danger-surface:#fff0ec;--warning:#78500c;--warning-surface:#fff0d6;--success:#076358;--success-surface:#edf4e7;--surface-disabled:#f1f0e9;--ink-disabled:#657571}
html[data-theme="fresh"]{--radius:8px;--card-radius:8px;--control-radius:5px;--shadow:0 2px 0 #e2e9dc;--seat-1:#438269;--seat-2:#587e9e;--seat-3:#a57840;--focus-ring:#1b604c;--danger:#a43d36;--danger-surface:#fff0ec;--warning:#78500c;--warning-surface:#fff0d6;--success:#1b604c;--success-surface:#ecf3e9;--surface-disabled:#f1f2eb;--ink-disabled:#667e70}
html[data-theme="tech"]{--radius:8px;--card-radius:8px;--control-radius:5px;--shadow:0 2px 0 #d9e4f6;--seat-1:#3560d4;--seat-2:#7252ca;--seat-3:#177caa;--focus-ring:#274ebd;--danger:#a43d52;--danger-surface:#fff0f2;--warning:#78500c;--warning-surface:#fff4dc;--success:#274ebd;--success-surface:#e9f2ff;--surface-disabled:#eef2f8;--ink-disabled:#61738e}
html[data-theme] .tag{border-radius:4px}
html[data-theme] .btn:hover{transform:none}
html[data-theme] .mode-card,html[data-theme] .bank-card,html[data-theme] .path-card,html[data-theme] .question-row{box-shadow:var(--shadow)}
html[data-theme] .mode-card::before,html[data-theme] .bank-card::before{border-radius:0}
html[data-theme] .personal-main .bank-card{border-radius:var(--card-radius)}
html[data-theme] .personal-main .bank-card:hover{transform:translateY(-2px);box-shadow:0 3px 0 var(--edge)}
html[data-theme] .solo-mode,html[data-theme] .solo-mode.quest{border-radius:var(--card-radius);box-shadow:var(--shadow)}
html[data-theme] .solo-mode .mode-symbol{border-radius:var(--control-radius)}
html[data-theme] .question-stage{border-left:7px solid var(--primary);box-shadow:var(--shadow)}
html[data-theme] .player-panel{position:relative;border-left-width:6px;box-shadow:var(--shadow)}
html[data-theme] .player-panel:nth-child(1){border-left-color:var(--seat-1)}
html[data-theme] .player-panel:nth-child(2){border-left-color:var(--seat-2)}
html[data-theme] .player-panel:nth-child(3){border-left-color:var(--seat-3)}
html[data-theme] .player-grid.count-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
html[data-theme] .player-grid.count-3 .player-panel{min-width:0;display:flex;flex-direction:column}
html[data-theme] .player-grid.count-3 .answer-area{display:flex;flex-direction:column;min-height:0;flex:1}
html[data-theme] .interactive-area .interactive-scroll{min-height:0;overflow-y:auto;flex:1}
html[data-theme] .interactive-area>.btn{flex-shrink:0}
html[data-theme] .player-grid.count-3 .answers{display:grid;grid-template-columns:1fr;gap:7px;min-height:0;overflow-y:auto;align-content:start}
html[data-theme] .player-grid.count-3 .answer-option{min-height:56px;padding:8px 12px;font-size:calc(20px + var(--reading-extra,0px));text-align:left;box-shadow:none}
html[data-theme] .player-grid.count-3 .answer-area>.btn{min-height:56px;margin-top:10px;font-size:calc(19px + var(--reading-extra,0px));flex-shrink:0}
html[data-theme] .answer-option{box-shadow:none}
html[data-theme] .answer-option.selected{box-shadow:inset 5px 0 0 var(--green)}
html[data-theme] .answer-option .letter{border-radius:4px}
html[data-theme] .cloze-sentence{font-size:clamp(20px,2vw,28px);font-weight:700;line-height:1.8;margin-bottom:7px}
html[data-theme] .cloze-slot{display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;min-width:104px;min-height:46px;margin:2px 4px;padding:3px 10px;border:2px dashed var(--primary);border-radius:var(--control-radius);background:var(--surface);color:var(--muted);font-size:.8em;font-weight:700}
html[data-theme] .cloze-slot.filled{border-style:solid;background:var(--mint);color:var(--ink)}
html[data-theme] .answer-hint{font-size:calc(14px + var(--reading-extra,0px));color:var(--muted);margin:0 0 8px}
html[data-theme] .word-bank{display:flex;flex-wrap:wrap;align-content:start;gap:9px;margin-bottom:auto}
html[data-theme] .word-card{min-height:52px;padding:7px 15px;border:2px solid var(--edge);border-radius:var(--control-radius);background:var(--surface);color:var(--ink);font-size:calc(20px + var(--reading-extra,0px));font-weight:700}
html[data-theme] .word-card:hover:not(:disabled){border-color:var(--primary)}
html[data-theme] .word-card.used{background:var(--surface-soft)}
html[data-theme] .match-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:auto}
html[data-theme] .match-grid>div{display:grid;gap:8px;align-content:start}
html[data-theme] .match-card{display:flex;align-items:center;gap:8px;min-height:58px;width:100%;padding:6px 9px;border:2px solid var(--edge);border-radius:var(--control-radius);background:var(--surface);color:var(--ink);font-size:calc(18px + var(--reading-extra,0px));font-weight:700;text-align:left;line-height:1.25}
html[data-theme] .match-card.active{border-color:var(--primary);background:var(--peach)}
html[data-theme] .match-card.paired{border-color:var(--green)}
html[data-theme] .match-card small{font-size:calc(11px + var(--reading-extra,0px));margin-left:auto;white-space:nowrap}
html[data-theme] .match-index{display:grid;place-items:center;width:26px;height:26px;flex-shrink:0;background:var(--mint);color:var(--green);font-size:15px;border-radius:3px}
html[data-theme] .match-right .match-index{margin-left:auto}
html[data-theme] .answer-breakdown{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:9px 0;max-width:100%}
html[data-theme] .answer-part{display:inline-flex;align-items:center;min-height:32px;padding:5px 8px;border:1px solid var(--edge);border-radius:4px;background:var(--surface);color:var(--ink);font-size:14px;font-weight:700;line-height:1.3;text-align:left}
html[data-theme] .answer-part.correct{border-left:3px solid var(--green)}
html[data-theme] .answer-part.wrong{border-left:3px solid #d9685d}
html[data-theme] .editor-pair-preview{display:grid;gap:6px}
html[data-theme] .editor-pair-preview>div{display:grid;grid-template-columns:24px 1fr 20px 1fr;gap:8px;align-items:center;background:var(--surface-soft);border:1px solid var(--edge);padding:8px;border-radius:var(--control-radius)}
html[data-theme] .editor-pair-preview b{color:var(--green)}
@media(min-width:980px) and (max-height:800px){
  html[data-theme] .player-grid.count-3 .player-panel{max-height:calc(100vh - 255px);min-height:315px;padding:9px 12px}
  html[data-theme] .player-grid.count-3 .player-head{margin-bottom:5px}
  html[data-theme] .player-grid.count-3 .player-name{font-size:calc(20px + var(--reading-extra,0px))}
  html[data-theme] .player-grid.count-3 .player-score{font-size:23px}
  html[data-theme] .player-grid.count-3 .answer-option{min-height:56px}
  html[data-theme] .player-grid.count-3 .match-card{min-height:56px;font-size:calc(18px + var(--reading-extra,0px))}
  html[data-theme] .player-grid.count-3 .cloze-sentence{font-size:20px}
  html[data-theme] .player-grid.count-3 .word-card{font-size:calc(20px + var(--reading-extra,0px));min-height:56px}
}
@media(max-width:979px){
  html[data-theme] .play-body:has(.player-grid.count-3){overflow-x:auto}
  html[data-theme] .player-grid.count-3{width:max(960px,100%);grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:680px){
  html[data-theme] .play-body:has(.player-grid.count-2){overflow-x:auto}
  html[data-theme] .player-grid.count-2{width:max(680px,100%);grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* 学生个人空间与教师学情：同一套纸张与赛道组件，主题仅改变色彩和质感。 */
html[data-theme] .student-shell{min-height:100vh;background:var(--bg)}
html[data-theme] .student-topbar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:24px;max-width:1500px;margin:auto;padding:18px 30px;border-bottom:1px solid var(--line);background:var(--bg)}
html[data-theme] .student-topbar .brand{white-space:nowrap}
html[data-theme] .student-nav{display:flex;align-items:center;justify-content:center;gap:7px;min-width:0}
html[data-theme] .student-nav a{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:9px 16px;border:1px solid transparent;border-radius:var(--control-radius);font-size:calc(16px + var(--reading-extra,0px));font-weight:700;color:var(--muted);white-space:nowrap}
html[data-theme] .student-nav a:hover{background:var(--surface-soft);color:var(--ink)}
html[data-theme] .student-nav a.active{background:var(--mint);border-color:var(--edge);color:var(--green);box-shadow:inset 4px 0 0 var(--primary)}
html[data-theme] .student-account{display:flex;align-items:center;justify-content:flex-end;gap:10px;min-width:0}
html[data-theme] .student-name{display:inline-flex;align-items:center;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:calc(15px + var(--reading-extra,0px));font-weight:800;color:var(--ink)}
html[data-theme] .student-account .btn{min-height:44px;font-size:calc(14px + var(--reading-extra,0px))}
html[data-theme] .student-main{width:min(100%,1500px);margin:auto;padding:26px 30px 56px}
html[data-theme] .student-shell>.footer-note{width:min(100%,1500px);margin:0 auto;padding:0 30px 26px}
html[data-theme] .student-hero{position:relative;display:flex;align-items:center;min-height:320px;overflow:hidden;padding:36px clamp(26px,4vw,56px);border:1.5px solid var(--edge);border-left:7px solid var(--primary);border-radius:var(--card-radius);background:var(--surface-soft) var(--hero) center/cover no-repeat;box-shadow:var(--shadow)}
html[data-theme] .student-hero-copy{position:relative;z-index:1;max-width:min(58%,660px)}
html[data-theme] .student-hero .eyebrow{display:block;margin-bottom:9px;color:var(--green)}
html[data-theme] .student-hero .tag{margin-bottom:14px}
html[data-theme] .student-hero h1{font-size:calc(clamp(32px,3.15vw,49px) + var(--reading-heading-extra,0px));line-height:1.28;letter-spacing:0}
html[data-theme] .student-hero p{max-width:540px;margin-top:11px;font-size:calc(18px + var(--reading-extra,0px));line-height:1.7;color:var(--ink)}
html[data-theme] .student-hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
html[data-theme] .student-hero-actions .btn{min-height:54px;font-size:calc(17px + var(--reading-extra,0px))}
html[data-theme] .student-hero-art{display:none}
html[data-theme] .student-summary,html[data-theme] .analytics-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0 30px}
html[data-theme] .summary-tile{display:grid;grid-template-columns:1fr auto;align-items:end;min-height:114px;padding:18px 20px;border:1.5px solid var(--edge);border-left:5px solid var(--green);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .summary-tile:nth-child(2){border-left-color:var(--primary)}
html[data-theme] .summary-tile:nth-child(3){border-left-color:var(--seat-2)}
html[data-theme] .summary-tile:nth-child(4){border-left-color:var(--seat-3)}
html[data-theme] .summary-tile span{grid-column:1/-1;color:var(--muted);font-size:calc(15px + var(--reading-extra,0px));font-weight:700}
html[data-theme] .summary-tile strong{font-size:calc(36px + var(--reading-extra,0px));line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
html[data-theme] .summary-tile small{padding-bottom:3px;font-size:calc(13px + var(--reading-extra,0px));text-align:right;color:var(--muted)}
html[data-theme] .study-section{margin-top:32px}
html[data-theme] .study-section>.section-head{margin-bottom:16px}
html[data-theme] .study-section .section-head h2,html[data-theme] .student-history .section-head h2{font-size:calc(25px + var(--reading-heading-extra,0px))}
html[data-theme] .study-section .section-head p,html[data-theme] .student-history .section-head p{font-size:calc(14px + var(--reading-extra,0px))}
html[data-theme] .study-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
html[data-theme] .study-action,html[data-theme] .student-mistake-prompt{display:flex;align-items:center;gap:14px;min-width:0;min-height:112px;padding:18px 19px;border:1.5px solid var(--edge);border-left:5px solid var(--primary);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow);color:var(--ink);text-align:left}
html[data-theme] .study-action:nth-child(2){border-left-color:var(--seat-2)}
html[data-theme] .study-action:nth-child(3){border-left-color:var(--seat-3)}
html[data-theme] .study-action:hover:not(:disabled),html[data-theme] .student-mistake-prompt:hover{border-color:var(--primary);background:var(--surface-soft)}
html[data-theme] .study-action>span:nth-child(2),html[data-theme] .student-mistake-prompt>span:nth-child(2){display:grid;gap:3px;min-width:0;flex:1}
html[data-theme] .study-action strong,html[data-theme] .student-mistake-prompt strong{font-size:calc(20px + var(--reading-extra,0px));line-height:1.35}
html[data-theme] .study-action small,html[data-theme] .student-mistake-prompt small{font-size:calc(14px + var(--reading-extra,0px));line-height:1.45;color:var(--muted)}
html[data-theme] .study-action>.icon,html[data-theme] .student-mistake-prompt>.icon{color:var(--green)}
html[data-theme] .study-action-symbol{display:grid;place-items:center;flex-shrink:0;width:49px;height:49px;border:1px solid var(--edge);border-radius:var(--control-radius);background:var(--mint);color:var(--green);font-size:28px;font-weight:800}
html[data-theme] .student-next{margin-top:14px}
html[data-theme] .student-mistake-prompt{min-height:86px;border-left-color:var(--green);background:var(--surface-soft)}
html[data-theme] .student-mistake-prompt .study-action-symbol{width:43px;height:43px;font-size:24px}
html[data-theme] .assigned-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
html[data-theme] .assigned-card{display:flex;flex-direction:column;min-width:0;min-height:220px;padding:19px 20px;border:1.5px solid var(--edge);border-top:5px solid var(--green);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .assigned-card:nth-child(3n+2){border-top-color:var(--primary)}
html[data-theme] .assigned-card:nth-child(3n){border-top-color:var(--seat-2)}
html[data-theme] .assigned-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
html[data-theme] .assigned-index{font-size:calc(20px + var(--reading-extra,0px));font-weight:900;line-height:1;color:var(--green);font-variant-numeric:tabular-nums}
html[data-theme] .assigned-card h3{font-size:calc(21px + var(--reading-extra,0px));line-height:1.35}
html[data-theme] .assigned-card>p{margin:7px 0 16px;font-size:calc(14px + var(--reading-extra,0px));line-height:1.6;color:var(--muted)}
html[data-theme] .assigned-card-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:13px;border-top:1px solid var(--line)}
html[data-theme] .assigned-card-bottom small{font-size:calc(13px + var(--reading-extra,0px));color:var(--muted)}
html[data-theme] .assigned-card-bottom .btn{min-height:44px;font-size:calc(14px + var(--reading-extra,0px))}
html[data-theme] .student-history{margin-top:32px;padding:23px 25px;border:1.5px solid var(--edge);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .student-history-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr) auto;align-items:center;gap:16px;min-height:58px;padding:11px 5px;border-top:1px solid var(--line)}
html[data-theme] .student-history-row span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:calc(16px + var(--reading-extra,0px));font-weight:700}
html[data-theme] .student-history-row small{font-size:calc(13px + var(--reading-extra,0px));color:var(--muted)}
html[data-theme] .student-history-row strong{font-size:calc(14px + var(--reading-extra,0px));color:var(--green);white-space:nowrap}
html[data-theme] .student-history-row:hover{background:var(--surface-soft)}
html[data-theme] .student-progress{display:block;min-height:8px;border-radius:2px;background:var(--mint);overflow:hidden}
html[data-theme] .student-progress>span{display:block;height:100%;background:var(--primary)}
html[data-theme] .student-empty{padding:35px 18px;border:1px dashed var(--edge);border-radius:var(--card-radius);background:var(--surface-soft);text-align:center;color:var(--muted)}
html[data-theme] .student-login{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,.8fr);width:min(calc(100% - 48px),1140px);min-height:520px;margin:36px auto 50px;border:1.5px solid var(--edge);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
html[data-theme] .student-login-story{padding:52px clamp(28px,4vw,55px);background:var(--surface-soft) var(--hero) center/cover no-repeat;border-right:1px solid var(--edge)}
html[data-theme] .student-login-story .tag{margin-bottom:18px}
html[data-theme] .student-login-story h1{max-width:480px;font-size:calc(clamp(34px,3.5vw,49px) + var(--reading-heading-extra,0px));line-height:1.3}
html[data-theme] .student-login-story p{max-width:440px;margin-top:15px;font-size:calc(18px + var(--reading-extra,0px));line-height:1.7;color:var(--ink)}
html[data-theme] .student-login-art{display:none}
html[data-theme] .student-login-card{display:flex;flex-direction:column;justify-content:center;padding:38px clamp(26px,3vw,48px)}
html[data-theme] .student-login-card h2{font-size:calc(31px + var(--reading-heading-extra,0px));line-height:1.25}
html[data-theme] .student-login-card>p{margin:8px 0 23px;font-size:calc(15px + var(--reading-extra,0px));color:var(--muted)}
html[data-theme] .student-login-card .field{margin-bottom:16px}
html[data-theme] .student-login-card label{font-size:calc(15px + var(--reading-extra,0px))}
html[data-theme] .student-login-card input{min-height:52px;font-size:calc(17px + var(--reading-extra,0px))}
html[data-theme] .student-login-card .btn{width:100%;min-height:54px;font-size:calc(17px + var(--reading-extra,0px))}
html[data-theme] .student-login-help{margin-top:21px!important;font-size:calc(13px + var(--reading-extra,0px))!important;line-height:1.55}
html[data-theme] dialog:has(#personal-form){width:min(700px,calc(100% - 32px))}
html[data-theme] dialog:has(#personal-form) .modal-head h2{font-size:24px}
html[data-theme] dialog:has(#personal-form) .notice{font-size:16px;line-height:1.6}
html[data-theme] dialog:has(#personal-form) .field label{font-size:calc(16px + var(--reading-extra,0px))}
html[data-theme] dialog:has(#personal-form) select,html[data-theme] dialog:has(#personal-form) input{min-height:54px;font-size:17px}
html[data-theme] dialog:has(#personal-form) .form-actions .btn{min-height:50px;font-size:calc(16px + var(--reading-extra,0px))}
html[data-theme] .mistake-toolbar{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}
html[data-theme] .mistake-toolbar button{min-height:48px;padding:9px 16px;border:1.5px solid var(--edge);border-radius:var(--control-radius);background:var(--surface);color:var(--ink);font-size:calc(15px + var(--reading-extra,0px));font-weight:700}
html[data-theme] .mistake-toolbar button.active{border-color:var(--primary);background:var(--mint);box-shadow:inset 4px 0 0 var(--primary)}
html[data-theme] .mistake-toolbar b{margin-left:6px;color:var(--green);font-variant-numeric:tabular-nums}
html[data-theme] .mistake-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
html[data-theme] .mistake-card{min-width:0;padding:20px 22px;border:1.5px solid var(--edge);border-left:5px solid var(--primary);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .mistake-card .question-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
html[data-theme] .mistake-card h3{margin:0 0 11px;font-size:calc(21px + var(--reading-extra,0px));line-height:1.55}
html[data-theme] .mistake-card>p{margin:7px 0;font-size:calc(15px + var(--reading-extra,0px));line-height:1.6;color:var(--muted);overflow-wrap:anywhere}
html[data-theme] .mistake-card>p strong{color:var(--ink)}
html[data-theme] .mistake-status{display:inline-flex;align-items:center;min-height:26px;padding:2px 8px;border:1px solid var(--edge);border-radius:4px;background:var(--surface-soft);color:var(--muted);font-size:calc(12px + var(--reading-extra,0px));font-weight:800}
html[data-theme] .mistake-status.pending{background:var(--peach);color:#925b19}
html[data-theme] .mistake-status.reviewing{background:var(--blue);color:var(--green)}
html[data-theme] .mistake-status.mastered{background:var(--mint);color:var(--green)}
html[data-theme] .mistake-explanation{margin:13px 0;padding:11px 13px;border-left:3px solid var(--green);background:var(--surface-soft);font-size:calc(14px + var(--reading-extra,0px));line-height:1.6;color:var(--ink)}
html[data-theme] .mistake-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:15px;padding-top:12px;border-top:1px solid var(--line)}
html[data-theme] .mistake-foot small{font-size:calc(12px + var(--reading-extra,0px));color:var(--muted)}
html[data-theme] .mistake-foot>div{display:flex;flex-wrap:wrap;gap:7px;justify-content:flex-end}
html[data-theme] .mistake-foot .btn{min-height:44px}
html[data-theme] .teacher-student-toolbar{display:flex;align-items:center;gap:16px;margin:18px 0 20px}
html[data-theme] .teacher-student-toolbar input{width:min(100%,420px);min-height:48px;font-size:15px}
html[data-theme] .teacher-student-toolbar > .select-ui{width:min(100%,200px)}
html[data-theme] .class-teacher-list{margin-top:20px}
html[data-theme] .class-teacher-list .bank-mini{justify-content:space-between;overflow-wrap:anywhere}
html[data-theme] .teacher-student-toolbar span{color:var(--muted);font-size:14px}
html[data-theme] .teacher-student-toolbar>.btn{margin-left:auto;min-height:48px;font-size:calc(14px + var(--reading-extra,0px));white-space:nowrap}
html[data-theme] .teacher-student-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
html[data-theme] .teacher-student-card{display:flex;flex-direction:column;min-width:0;min-height:215px;padding:20px;border:1.5px solid var(--edge);border-left:5px solid var(--green);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .teacher-student-card:has(.student-select input:checked){border-color:var(--green);background:var(--surface-soft)}
html[data-theme] .student-select{display:inline-flex;align-items:center;gap:9px;align-self:flex-start;min-height:43px;max-width:100%;margin:-7px 0 9px -7px;padding:8px 10px;border:1px solid transparent;border-radius:var(--control-radius);color:var(--muted);font-size:calc(13px + var(--reading-extra,0px));font-weight:700;cursor:pointer}
html[data-theme] .student-select:hover,html[data-theme] .student-select:has(input:checked){border-color:var(--edge);background:var(--mint);color:var(--ink)}
html[data-theme] .student-select input{width:20px;height:20px;flex-shrink:0;margin:0;accent-color:var(--green)}
html[data-theme] .student-select span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
html[data-theme] .teacher-student-card-head{display:flex;align-items:center;gap:11px;min-width:0}
html[data-theme] .teacher-student-card-head .avatar{width:48px;height:48px;flex-shrink:0;font-size:19px}
html[data-theme] .teacher-student-card-head>div{min-width:0;flex:1}
html[data-theme] .teacher-student-card-head h3{font-size:19px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
html[data-theme] .teacher-student-card-head small{font-size:12px;color:var(--muted);overflow-wrap:anywhere}
html[data-theme] .teacher-student-card>p{margin:16px 0;font-size:14px;color:var(--muted)}
html[data-theme] .student-card-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
html[data-theme] .student-card-actions .btn{min-height:42px;font-size:calc(13px + var(--reading-extra,0px))}
html[data-theme] .assignment-grid{display:grid;gap:8px;margin:15px 0;padding:15px;border:1px solid var(--edge);border-radius:var(--card-radius)}
html[data-theme] .assignment-grid legend{padding:0 7px;font-size:15px;font-weight:800;color:var(--ink)}
html[data-theme] .assignment-item{display:flex;align-items:center;gap:11px;min-height:56px;margin:0;padding:8px 11px;border:1px solid var(--line);border-radius:var(--control-radius);background:var(--surface)}
html[data-theme] .assignment-item:has(input:checked){border-color:var(--green);background:var(--mint)}
html[data-theme] .assignment-item input{flex-shrink:0}
html[data-theme] .assignment-item span{display:grid;gap:2px;min-width:0}
html[data-theme] .assignment-item strong{font-size:14px;line-height:1.35}
html[data-theme] .assignment-item small{font-size:12px;color:var(--muted)}
html[data-theme] .analytics-filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr)) auto;align-items:end;gap:12px;margin:18px 0 22px;padding:18px;border:1.5px solid var(--edge);border-radius:var(--card-radius);background:var(--surface)}
html[data-theme] .analytics-filters label{min-width:0;margin:0;font-size:14px;color:var(--ink)}
html[data-theme] .analytics-filters select,html[data-theme] .analytics-filters input{display:block;width:100%;min-height:46px;margin-top:6px;font-size:15px}
html[data-theme] .analytics-filters .btn{min-height:46px}
html[data-theme] .analytics-summary{grid-template-columns:repeat(4,minmax(0,1fr));margin:0 0 22px}
html[data-theme] .analytics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:16px}
html[data-theme] .analytics-panel{min-width:0;padding:19px 21px;border:1.5px solid var(--edge);border-radius:var(--card-radius);background:var(--surface);box-shadow:var(--shadow)}
html[data-theme] .analytics-panel .section-head{margin-bottom:14px}
html[data-theme] .analytics-panel .section-head h2{font-size:calc(20px + var(--reading-heading-extra,0px))}
html[data-theme] .analytics-panel .section-head p{font-size:calc(13px + var(--reading-extra,0px))}
html[data-theme] .analytics-table{min-width:0;overflow-x:auto}
html[data-theme] .analytics-table-head,html[data-theme] .analytics-table-row{display:grid;grid-template-columns:minmax(115px,1.5fr) repeat(3,minmax(70px,.65fr));align-items:center;gap:10px;min-width:430px;padding:9px 4px}
html[data-theme] .analytics-table-head{border-bottom:2px solid var(--edge);font-size:12px;font-weight:800;color:var(--muted)}
html[data-theme] .analytics-table-row{min-height:51px;border-bottom:1px solid var(--line);font-size:14px}
html[data-theme] .analytics-table-row:last-child{border-bottom:0}
html[data-theme] .analytics-table-row span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}
html[data-theme] .analytics-table-row strong{font-variant-numeric:tabular-nums}
html[data-theme] .insight-list{display:grid;gap:8px}
html[data-theme] .insight-item{display:flex;align-items:flex-start;gap:10px;min-height:62px;padding:9px 10px;border:1px solid var(--line);border-radius:var(--control-radius);background:var(--surface-soft)}
html[data-theme] .insight-item>div{display:grid;gap:3px;min-width:0}
html[data-theme] .insight-item strong{font-size:14px;line-height:1.45}
html[data-theme] .insight-item small{font-size:12px;color:var(--muted)}
@media(max-width:1150px){
  html[data-theme] .student-topbar{grid-template-columns:auto 1fr;gap:12px 20px}
  html[data-theme] .student-nav{grid-column:1/-1;grid-row:2;justify-content:flex-start}
  html[data-theme] .student-account{grid-column:2;grid-row:1}
  html[data-theme] .study-actions,html[data-theme] .assigned-grid,html[data-theme] .teacher-student-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  html[data-theme] .analytics-grid{grid-template-columns:1fr}
  html[data-theme] .analytics-filters{grid-template-columns:repeat(2,minmax(0,1fr))}
  html[data-theme] .analytics-filters .btn{justify-self:start}
}
@media(max-width:760px){
  html[data-theme] .student-topbar{padding:13px 17px;gap:10px}
  html[data-theme] .student-topbar .brand{font-size:calc(18px + var(--reading-extra,0px))}
  html[data-theme] .student-topbar .brand small{display:none}
  html[data-theme] .student-nav{overflow-x:auto;justify-content:space-between;gap:3px}
  html[data-theme] .student-nav a{min-height:43px;padding:7px 9px;font-size:calc(13px + var(--reading-extra,0px))}
  html[data-theme] .student-account .theme-select-label{display:inline-flex}
  html[data-theme] .student-account .student-name{font-size:calc(13px + var(--reading-extra,0px))}
  html[data-theme] .student-account .btn{min-height:38px;font-size:calc(12px + var(--reading-extra,0px))}
  html[data-theme] .student-main{padding:16px 16px 40px}
  html[data-theme] .student-hero{min-height:290px;padding:25px;background-position:60% center}
  html[data-theme] .student-hero-copy{max-width:72%}
  html[data-theme] .student-hero h1{font-size:calc(34px + var(--reading-heading-extra,0px))}
  html[data-theme] .student-hero p{font-size:calc(16px + var(--reading-extra,0px))}
  html[data-theme] .student-summary,html[data-theme] .analytics-summary{grid-template-columns:repeat(2,minmax(0,1fr))}
  html[data-theme] .study-actions,html[data-theme] .assigned-grid,html[data-theme] .mistake-grid,html[data-theme] .teacher-student-grid{grid-template-columns:1fr}
  html[data-theme] .analytics-filters{grid-template-columns:repeat(2,minmax(0,1fr))}
  html[data-theme] .analytics-filters .btn{justify-self:start}
  html[data-theme] .student-login{grid-template-columns:1fr;width:min(calc(100% - 30px),640px);margin:17px auto 35px}
  html[data-theme] .student-login-story{min-height:245px;padding:29px 32px;background-image:linear-gradient(90deg,color-mix(in srgb,var(--surface) 90%,transparent),color-mix(in srgb,var(--surface) 62%,transparent) 55%,transparent),var(--hero);background-position:center,60% center;border-right:0;border-bottom:1px solid var(--edge)}
  html[data-theme] .student-login-story h1{font-size:calc(34px + var(--reading-heading-extra,0px))}
  html[data-theme] .student-login-story p{font-size:calc(16px + var(--reading-extra,0px))}
}
@media(max-width:520px){
  html[data-theme] .student-topbar{grid-template-columns:1fr auto}
  html[data-theme] .student-topbar .brand{font-size:calc(16px + var(--reading-extra,0px))}
  html[data-theme] .student-topbar .brand-mark{width:31px;height:31px;font-size:calc(20px + var(--reading-extra,0px))}
  html[data-theme] .student-account{display:contents}
  html[data-theme] .student-account .student-name{display:none}
  html[data-theme] .student-account .btn{grid-column:2;grid-row:1;justify-self:end}
  html[data-theme] .student-account .theme-select-label{grid-column:1/-1;grid-row:3;justify-self:end}
  html[data-theme] .student-account .theme-select-label select{min-width:120px}
  html[data-theme] .student-nav a{font-size:calc(12px + var(--reading-extra,0px));gap:4px}
  html[data-theme] .student-nav a .icon{font-size:1em}
  html[data-theme] .student-hero{min-height:330px;padding:21px;background-position:56% center}
  html[data-theme] .student-hero-copy{max-width:none;width:100%;padding:15px;background:color-mix(in srgb,var(--surface) 86%,transparent)}
  html[data-theme] .student-hero h1{font-size:calc(30px + var(--reading-heading-extra,0px))}
  html[data-theme] .student-hero p{font-size:calc(15px + var(--reading-extra,0px))}
  html[data-theme] .student-hero-actions .btn{min-height:47px;font-size:calc(14px + var(--reading-extra,0px))}
  html[data-theme] .student-summary,html[data-theme] .analytics-summary{gap:8px}
  html[data-theme] .summary-tile{min-height:104px;padding:12px}
  html[data-theme] .summary-tile span{font-size:calc(12px + var(--reading-extra,0px))}
  html[data-theme] .summary-tile strong{font-size:calc(27px + var(--reading-extra,0px))}
  html[data-theme] .summary-tile small{font-size:calc(11px + var(--reading-extra,0px))}
  html[data-theme] .study-action{min-height:96px;padding:13px}
  html[data-theme] .study-action strong{font-size:calc(18px + var(--reading-extra,0px))}
  html[data-theme] .study-action small{font-size:calc(13px + var(--reading-extra,0px))}
  html[data-theme] .student-mistake-prompt{padding:12px}
  html[data-theme] .student-mistake-prompt strong{font-size:calc(18px + var(--reading-extra,0px))}
  html[data-theme] .student-mistake-prompt small{font-size:calc(13px + var(--reading-extra,0px))}
  html[data-theme] .student-history{padding:17px}
  html[data-theme] .student-history-row{grid-template-columns:1fr auto;gap:3px 8px}
  html[data-theme] .student-history-row small{grid-column:1;grid-row:2}
  html[data-theme] .student-history-row strong{grid-column:2;grid-row:1/3;font-size:calc(12px + var(--reading-extra,0px))}
  html[data-theme] .assigned-card{min-height:195px}
  html[data-theme] .assigned-card-bottom{flex-wrap:wrap}
  html[data-theme] .student-login-story{min-height:218px;padding:22px;background-position:55% center}
  html[data-theme] .student-login-story h1{font-size:calc(29px + var(--reading-heading-extra,0px))}
  html[data-theme] .student-login-story p{font-size:calc(14px + var(--reading-extra,0px));max-width:260px}
  html[data-theme] .student-login-card{padding:25px 22px}
  html[data-theme] .mistake-card{padding:17px}
  html[data-theme] .mistake-foot{align-items:flex-start;flex-direction:column}
  html[data-theme] .mistake-foot>div{justify-content:flex-start}
  html[data-theme] .teacher-student-toolbar{align-items:flex-start;flex-direction:column;gap:6px}
  html[data-theme] .teacher-student-toolbar input{width:100%}
  html[data-theme] .teacher-student-toolbar>.btn{margin-left:0;width:100%;justify-content:center}
  html[data-theme] .analytics-filters{grid-template-columns:1fr}
  html[data-theme] .analytics-filters .btn{width:100%}
}

/* Shared interaction states for student, whiteboard and teacher surfaces. */
html[data-theme] body .shell{--card-radius:8px;--control-radius:5px}
html[data-theme] :is(button,a,input,select,textarea,[role="option"],[role="radio"],[role="checkbox"]):focus-visible{outline:3px solid var(--focus-ring,var(--primary));outline-offset:2px}
html[data-theme] :is(button,input,select,textarea,[role="option"]):disabled,
html[data-theme] [aria-disabled="true"]{cursor:not-allowed}
html[data-theme] .btn:disabled,
html[data-theme] button[aria-disabled="true"],
html[data-theme] .select-ui-trigger:disabled{opacity:1;border-color:var(--line);background:var(--surface-disabled);color:var(--ink-disabled);box-shadow:none;transform:none}
html[data-theme] input:disabled,html[data-theme] select:disabled,html[data-theme] textarea:disabled{background:var(--surface-disabled);color:var(--ink-disabled);border-color:var(--line);cursor:not-allowed}
html[data-theme] :is(input,select,textarea)[aria-invalid="true"],
html[data-theme] :is(input,select,textarea).is-invalid{border-color:var(--danger);box-shadow:0 0 0 2px color-mix(in srgb,var(--danger) 16%,transparent)}
html[data-theme] :is(.error,[role="alert"],.field-error){color:var(--danger)}
html[data-theme] .notice.warning,html[data-theme] [data-state="warning"]{background:var(--warning-surface);border-color:color-mix(in srgb,var(--warning) 30%,var(--line));color:var(--warning)}
html[data-theme] .answer-option.selected,html[data-theme] .match-card.active,html[data-theme] .word-card.selected,
html[data-theme] [aria-pressed="true"]:not(.btn){border-color:var(--green);background:var(--mint);color:var(--ink)}
html[data-theme] .answer-option.correct-option,html[data-theme] .answer-feedback:not(.wrong),html[data-theme] .answer-part.correct{border-color:var(--success);background:var(--success-surface)}
html[data-theme] .answer-option.wrong-option,html[data-theme] .answer-feedback.wrong,html[data-theme] .answer-part.wrong{border-color:var(--danger);background:var(--danger-surface);color:var(--danger)}
html[data-theme] .select-ui-trigger{border-radius:var(--control-radius);color:var(--ink)}
html[data-theme] .select-ui-trigger[aria-expanded="true"]{border-color:var(--focus-ring);box-shadow:0 0 0 3px color-mix(in srgb,var(--focus-ring) 15%,transparent)}
html[data-theme] .select-ui-menu{border-radius:var(--control-radius);border-color:var(--edge);background:var(--surface);box-shadow:0 12px 28px color-mix(in srgb,var(--ink) 18%,transparent)}
html[data-theme] .select-ui-option{border-radius:3px;color:var(--ink)}
html[data-theme] .select-ui-option:hover,html[data-theme] .select-ui-option:focus-visible{background:var(--surface-soft);color:var(--ink)}
html[data-theme] .select-ui-option[aria-selected="true"]{background:var(--mint);color:var(--green-dark)}
html[data-theme] .select-ui-option[aria-selected="true"]::after{color:var(--green-dark)}
html[data-theme] .select-ui-option:disabled{background:transparent;color:var(--ink-disabled);opacity:1}
@media(prefers-reduced-motion:reduce){html[data-theme] *,html[data-theme] *::before,html[data-theme] *::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* User-controlled reading and sensory preferences. */
html[data-theme] .preference-panel{max-width:760px}
html[data-theme] .preference-panel h2{margin-bottom:6px}
html[data-theme] .user-preferences{display:grid;gap:0;margin-top:14px;border-top:1px solid var(--line)}
html[data-theme] .user-preference{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px;padding:10px 0;border-bottom:1px solid var(--line)}
html[data-theme] .user-preference>span{display:grid;gap:4px}
html[data-theme] .user-preference strong{color:var(--ink);font-size:16px}
html[data-theme] .user-preference small{color:var(--muted);font-size:13px}
html[data-theme] .user-preference select{width:min(170px,42vw);min-height:42px}
html[data-theme] .user-preference input[type="checkbox"]{width:25px;height:25px;min-height:25px;margin:0 5px;accent-color:var(--primary);flex:none}
/* Components add these increments to their own responsive baseline sizes.
   Relative 1em overrides would instead replace a heading with its parent's size. */
html[data-text-size="large"] :is(.student-main,.student-nav,.play-page){--reading-extra:2px;--reading-heading-extra:4px}
html[data-text-size="large"] .main .panel p,
html[data-text-size="large"] .main .field label{--reading-extra:2px}
html[data-text-size="large"] .play-page .board-controls .btn,
html[data-text-size="large"] .play-page .solution-panel .btn{min-height:64px}
html[data-reduce-motion="reduce"] *,
html[data-reduce-motion="reduce"] *::before,
html[data-reduce-motion="reduce"] *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}