/*! tailwindcss v4.3.0 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-ease:initial}}}@layer theme{:root,:host{--font-sans:"Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, monospace;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--ease-in-out:cubic-bezier(.4, 0, .2, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono);--color-brand-50:#ffedde;--color-brand-300:#ffa35f;--color-brand-500:#ff5c00;--color-brand-600:#e65000;--color-brand-700:#bf4200;--color-brand-800:#943400;--color-surface:#fff;--color-surface-card:#fff;--color-text-primary:#181817;--color-text-secondary:#41403c;--color-text-muted:#75736b;--color-border-light:#dfddd7;--color-success:#148057;--color-success-bg:#e3f5ec;--color-danger:#d12e29;--color-danger-bg:#fff1ef;--text-fluid-2xl:clamp(1.375rem, 1.16rem + .95vw, 2rem);--text-fluid-3xl:clamp(1.625rem, 1.3rem + 1.45vw, 2.5rem);--color-canvas:#f5f4f1;--color-surface-muted:#efeeea;--color-surface-hover:#e8e6e1;--color-reading:#fff;--color-info:#3563a2;--color-info-bg:#edf3fb}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);color:var(--color-text-primary);background:var(--color-surface)}button,input,textarea,select{font:inherit}:is(button,a,input,textarea,select,summary):focus-visible{outline:2px solid var(--color-brand-700);outline-offset:3px}}@layer components;@layer utilities{.\@container{container-type:inline-size}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.static{position:static}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.flex-shrink{flex-shrink:1}.grow{flex-grow:1}.border-collapse{border-collapse:collapse}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.flex-wrap{flex-wrap:wrap}.border{border-style:var(--tw-border-style);border-width:1px}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-danger{color:var(--color-danger)}.italic{font-style:italic}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}}.exam-library,.exam-paper-detail{max-width:1280px;margin:auto;padding:40px 36px 28px}.exam-kicker{letter-spacing:.12em;color:var(--color-text-secondary);margin-bottom:12px;font-size:11px;font-weight:650}.exam-detail-heading h1{letter-spacing:-.055em;margin:0 0 12px;font-size:clamp(24px,2.6vw,36px);font-weight:650;line-height:1.35}.exam-detail-heading p:last-child{color:var(--color-text-secondary);font-size:14px}.exam-library-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.exam-library-filters{align-items:center;gap:12px;min-width:0;display:flex}.exam-library-toolbar input,.exam-library-toolbar select{border:1px solid var(--color-border-light);background:var(--color-surface);width:180px;height:40px;color:var(--color-text-primary);border-radius:10px;min-width:0;padding:0 13px;font-size:13px}.exam-paper-list{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:12px;margin:0;padding:0;list-style:none;overflow:hidden}.exam-paper-list li+li{border-top:1px solid var(--color-border-light)}.exam-paper-row{justify-content:space-between;align-items:center;gap:24px;min-height:112px;padding:20px 24px;display:flex}.exam-paper-summary,.exam-detail-title{align-items:center;gap:24px;min-width:0;display:flex}.exam-paper-summary{flex:1}.exam-paper-summary h2{overflow-wrap:anywhere;font-size:17px;font-weight:600;line-height:1.5}.exam-paper-summary p{color:var(--color-text-secondary);margin-top:6px;font-size:13px}.exam-paper-summary:hover h2{color:var(--color-brand-600)}.exam-paper-summary:focus-visible{outline:2px solid var(--color-brand-500);outline-offset:4px;border-radius:4px}.exam-paper-actions{flex-shrink:0;gap:10px;display:flex}.exam-paper-actions .study-button{justify-content:center;min-width:104px}.exam-icon-orange{--exam-icon-ink:var(--color-brand-600);--exam-icon-bg:var(--color-brand-50)}.exam-icon-green{--exam-icon-ink:var(--color-success);--exam-icon-bg:var(--color-success-bg)}.exam-icon-blue{--exam-icon-ink:var(--color-info);--exam-icon-bg:var(--color-info-bg)}.exam-document-icon{width:52px;height:65px;color:var(--exam-icon-ink);flex-shrink:0}.exam-document-sheet,.exam-document-fold{fill:var(--exam-icon-bg);stroke:var(--exam-icon-ink)}@supports (color:color-mix(in lab, red, red)){.exam-document-sheet,.exam-document-fold{stroke:color-mix(in srgb, var(--exam-icon-ink) 45%, transparent)}}.exam-document-sheet,.exam-document-fold{stroke-width:1.3px;stroke-linejoin:round}.exam-document-fold{fill:var(--exam-icon-ink)}@supports (color:color-mix(in lab, red, red)){.exam-document-fold{fill:color-mix(in srgb, var(--exam-icon-ink) 15%, var(--exam-icon-bg))}}.exam-document-icon text{fill:currentColor;font:650 12px system-ui,sans-serif}.exam-document-lines{fill:none;stroke:currentColor;stroke-opacity:.45;stroke-width:2px;stroke-linecap:round}.exam-empty{text-align:center;color:var(--color-text-secondary);padding:64px 20px}.exam-empty h2{color:var(--color-text-primary);margin-bottom:10px;font-size:20px}.exam-empty p{margin-bottom:20px}.exam-error{border:1px solid var(--color-border-light);background:var(--color-danger-bg);color:var(--color-danger);border-radius:12px;flex-wrap:wrap;align-items:center;gap:14px;margin:12px 0;padding:14px 18px;font-size:13px;display:flex}.exam-pagination{justify-content:center;align-items:center;gap:20px;margin-top:28px;font-size:13px;display:flex}.exam-history-list{border:1px solid var(--color-border-light);background:var(--color-surface);border-radius:16px;overflow:hidden}.exam-history-row{border-bottom:1px solid var(--color-border-light);justify-content:space-between;align-items:center;gap:20px;padding:24px;display:flex}.exam-history-row:last-child{border-bottom:0}.exam-history-row:hover{background:var(--color-surface-muted)}.exam-history-row h2{margin:10px 0 8px;font-size:17px;font-weight:600}.exam-history-row p,.exam-history-date time{color:var(--color-text-secondary);font-size:12px}.exam-history-date{flex-direction:column;align-items:flex-end;gap:18px;display:flex}.exam-history-date strong{font-size:13px;font-weight:550}.exam-status{background:var(--color-brand-50);color:var(--color-brand-700);border-radius:5px;padding:4px 7px;font-size:11px}.exam-status.completed{background:var(--color-surface-muted);color:var(--color-text-secondary)}.exam-back{color:var(--color-text-secondary);margin-bottom:24px;font-size:13px;display:inline-block}.exam-detail-heading{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:12px;justify-content:space-between;align-items:center;gap:24px;margin-bottom:18px;padding:22px 24px;display:flex}.exam-detail-heading>.study-button{flex-shrink:0}.exam-workbench{max-width:1600px;margin:auto;padding:20px 26px 28px}.exam-workbench-toolbar{justify-content:space-between;align-items:center;gap:16px;padding:2px 0 20px;display:flex}.exam-workbench-title{align-items:center;gap:12px;min-width:0;display:flex}.exam-workbench-title h1{letter-spacing:-.025em;font-size:16px;font-weight:650;line-height:1.5}.exam-workbench-title p{color:var(--color-text-secondary);margin-top:4px;font-size:11px}.exam-save-state{margin-left:14px}.exam-workbench-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.exam-clock{font-variant-numeric:tabular-nums;letter-spacing:.035em}.exam-clock button{color:var(--color-text-secondary);margin-left:10px;padding:8px;font-size:11px}.exam-group-page{grid-template-columns:minmax(0,1.16fr) minmax(0,1fr);align-items:start;gap:18px;scroll-margin-top:85px;display:grid}.exam-reading-pane,.exam-answer-pane{border:1px solid var(--color-border-light);scrollbar-width:thin;overscroll-behavior:contain;border-radius:16px;min-width:0;max-height:calc(100dvh - 270px);overflow:auto}.exam-pane-heading{color:var(--color-text-secondary);border-bottom:1px solid var(--color-border-light);background:var(--color-reading);z-index:2;justify-content:space-between;align-items:center;padding:16px 24px;font-size:11px;font-weight:550;display:flex;position:sticky;top:0}.exam-reading-body{letter-spacing:0;color:var(--color-text-primary);padding:26px 32px 40px;font-family:Georgia,Times New Roman,Songti SC,serif}.exam-content-block p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.exam-source-list>p+p{margin-top:.75em}.exam-content-block[data-role=writing_prompt_excerpt]{border-inline-start:2px solid var(--color-border-light);margin-inline-start:1.5em;padding-inline-start:1em}.exam-content-title{font-weight:700}.exam-content-block[data-role=section_title]{font-size:1.15em}.exam-content-block[data-role=paper_title]{font-size:1.75em}.exam-content-block[data-role=passage_body]{text-align:justify;text-indent:2em}.exam-content-block[data-role=directions_title]{font-weight:700}.exam-underline{text-underline-offset:.18em;text-decoration:underline;text-decoration-thickness:1px}.exam-bold{font-weight:700}.exam-content-block figure{margin:20px auto}.exam-content-block img{object-fit:contain;background:#fff;border-radius:3px;max-width:100%;height:auto;max-height:480px;margin:auto}.exam-content-block figcaption{text-align:center;color:var(--color-text-secondary);margin-top:10px;font-size:14px}.exam-shared-options{border-top:1px solid var(--color-border-light);margin-top:28px;padding-top:22px}.exam-shared-options h3{margin-bottom:20px;font-family:inherit;font-size:14px;font-weight:600}.exam-shared-options p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0 0 1em}.exam-question{border-bottom:1px solid var(--color-border-light);padding:26px;scroll-margin-top:68px}.exam-question:last-child{border:0}.exam-question>header{justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:17px;display:flex}.exam-question h3{font-family:Georgia,Times New Roman,Songti SC,serif;font-weight:400;font-size:var(--reading-font-size,19px);white-space:pre-wrap;overflow-wrap:anywhere;gap:12px;line-height:1.6;display:flex}.exam-question-number{text-align:center;border-radius:6px;flex-shrink:0;align-self:flex-start;min-width:2.5em;font-family:Georgia,Times New Roman,serif;font-size:1em;font-weight:600;line-height:1.6}.exam-question-answered .exam-question-number{background:var(--color-brand-50);color:var(--color-brand-700)}.exam-flag{color:var(--color-text-secondary);border-radius:8px;flex-shrink:0;margin-top:-4px;padding:10px}.exam-flag svg{fill:none;stroke:currentColor;stroke-width:1.6px;width:16px;height:16px}.exam-flag.active{color:var(--color-brand-600);background:var(--color-brand-50)}.exam-options{flex-direction:column;gap:8px;display:flex}.exam-option{cursor:pointer;border:1px solid var(--color-border-light);font-family:Georgia,Times New Roman,serif;font-size:var(--reading-font-size,19px);background:var(--color-surface);border-radius:10px;align-items:flex-start;gap:12px;padding:12px 14px;line-height:1.65;display:flex;position:relative}.exam-option input{opacity:0;width:1px;height:1px;position:absolute}.exam-option:has(input:focus-visible){outline:2px solid var(--color-brand-500);outline-offset:3px}.exam-option:has(input:disabled){cursor:default}.exam-option-letter{flex-shrink:0;min-width:1.5em;font-family:Georgia,Times New Roman,serif;font-size:1em;font-weight:400}.exam-option-text{overflow-wrap:anywhere}.exam-option.selected{background:var(--color-brand-50);border-color:var(--color-brand-500)}.exam-option.selected .exam-option-letter{color:var(--color-brand-700)}.exam-options-compact{flex-flow:wrap}.exam-options-compact .exam-option{justify-content:center;min-width:48px}.exam-options-compact .exam-option-letter{text-align:center}.exam-clear{color:var(--color-text-secondary);align-self:flex-end;padding:8px;font-size:13px}.exam-writing{resize:vertical;border:1px solid var(--color-border-light);width:100%;color:var(--color-text-primary);background:0 0;border-radius:10px;min-height:150px;padding:16px 18px;font-family:Georgia,Times New Roman,Songti SC,serif;display:block}.exam-writing:focus{outline:2px solid var(--color-brand-300);outline-offset:2px}.exam-writing::placeholder{color:var(--color-text-secondary);font-size:14px}.exam-word-count{color:var(--color-text-secondary);justify-content:space-between;margin-top:10px;font-size:10px;display:flex}.exam-ordering{padding:22px 24px}.exam-ordering-hint{color:var(--color-text-secondary);margin:0 0 14px;font-size:13px}.exam-ordering-track{flex-wrap:wrap;gap:14px 18px;margin:0;padding:4px 16px 12px 2px;list-style:none;display:flex}.exam-ordering-step{flex:0 0 84px;min-width:0;position:relative}.exam-ordering-step:not(:last-child):after{content:"→";color:var(--color-text-secondary);font-size:12px;position:absolute;top:38px;right:-15px}.exam-ordering-slot{border:1px solid var(--color-border-light);background:var(--color-surface);width:100%;min-height:94px;color:var(--color-text-primary);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:8px 6px;display:flex;position:relative}.exam-ordering-caption{font:13px/1.5 -apple-system,BlinkMacSystemFont,sans-serif}.exam-ordering-caption-row{justify-content:center;align-items:center;gap:4px;width:100%;min-height:24px;display:flex}.exam-ordering-caption-row .exam-flag{width:24px;height:24px;padding:3px}.exam-ordering-slot strong{place-items:center;min-height:40px;font:24px/1.2 Georgia,Times New Roman,serif;display:grid}.exam-ordering-slot.is-fixed{background:var(--color-surface-muted);color:var(--color-text-secondary)}.exam-ordering-slot.is-answered{border-color:var(--color-brand-300)}.exam-ordering-slot:focus-within{border-color:var(--color-brand-500);background:var(--color-brand-50)}.exam-ordering-select{border:1px solid var(--color-border);width:100%;min-width:0;height:40px;color:var(--color-text-primary);background:var(--color-surface);cursor:pointer;border-radius:6px;padding:4px;font:18px/1.4 Georgia,Times New Roman,serif}.exam-ordering-select:focus-visible{outline:2px solid var(--color-brand-500);outline-offset:2px}.exam-ordering-select:disabled{opacity:1;cursor:default}.exam-ordering-flag{color:var(--color-brand-600);font-size:8px}.exam-matching{padding:22px 24px 28px}.exam-matching-columns{border:1px solid var(--color-border);background:var(--color-surface);border-radius:10px;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);display:grid;overflow:hidden}.exam-matching-questions,.exam-matching-choices ol{margin:0;padding:0;list-style:none}.exam-matching-question{border-bottom:1px solid var(--color-border-light);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;min-width:0;min-height:74px;padding:12px 16px;display:flex}.exam-matching-question:last-child{border-bottom:0}.exam-matching-question.is-answered{border-color:var(--color-brand-300);background:var(--color-brand-50)}.exam-matching-prompt{overflow-wrap:anywhere;min-width:0;font-family:Georgia,Times New Roman,serif;font-size:var(--reading-font-size,19px);flex:10em;align-items:baseline;gap:8px;line-height:1.4;display:inline-flex}.exam-matching-number{flex:none;font-weight:650}.exam-matching-controls{flex:none;align-items:center;gap:4px;display:flex}.exam-matching-controls .exam-flag{flex:none}.exam-matching-flag{color:var(--color-brand-700);flex:none;font-size:12px}.exam-matching-select{border:1px solid var(--color-border);background:var(--color-surface);width:94px;min-width:0;color:var(--color-text-primary);cursor:pointer;border-radius:8px;padding:9px 10px;font-size:16px}.exam-matching-select:focus-visible{outline:2px solid var(--color-brand-500);outline-offset:2px}.exam-matching-select:disabled{opacity:1;cursor:default}.exam-matching-choices{border-left:1px solid var(--color-border);min-width:0}.exam-matching-choices li{border-bottom:1px solid var(--color-border-light);min-height:74px;font-family:Georgia,Times New Roman,serif;font-size:var(--reading-font-size,19px);overflow-wrap:anywhere;flex-wrap:wrap;gap:5px 8px;padding:12px 16px;line-height:1.45;display:flex}.exam-matching-choices li:last-child{border-bottom:0}.exam-matching-choices li.is-selected{border-color:var(--color-brand-500);background:var(--color-brand-50)}.exam-matching-choice-key{flex:none;font-weight:700}.exam-matching-choice-text{flex:9em;min-width:0}.exam-matching-used{width:100%;color:var(--color-brand-700);padding-left:1.4em;font:600 12px/1.4 -apple-system,BlinkMacSystemFont,sans-serif}.exam-subscript{vertical-align:sub;font-size:.75em}.exam-workbench-footer{color:var(--color-text-secondary);justify-content:space-between;align-items:center;gap:12px;margin-top:18px;font-size:11px;display:flex}.exam-answer-card{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:14px;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-bottom:18px;padding:22px;display:grid}.exam-answer-card>header{grid-column:1/-1;justify-content:space-between;font-size:12px;display:flex}.exam-answer-card>header span{color:var(--color-text-secondary);font-size:11px}.exam-answer-card h3{color:var(--color-text-secondary);margin-bottom:10px;font-size:11px}.exam-answer-numbers{flex-wrap:wrap;gap:6px;display:flex}.exam-answer-numbers button{border:1px solid var(--color-border-light);border-radius:8px;min-width:36px;height:36px;font-size:12px;position:relative}.exam-answer-numbers button.answered{color:var(--color-brand-700);background:var(--color-brand-50);border-color:var(--color-brand-300)}.exam-answer-numbers button.flagged:after{content:"";background:var(--color-brand-500);border-radius:50%;width:5px;height:5px;position:absolute;top:3px;right:3px}.exam-result-banner{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:14px;justify-content:space-between;align-items:center;gap:25px;margin-bottom:20px;padding:20px 24px;display:flex}.exam-result-banner strong{font-size:17px}.exam-result-banner p{color:var(--color-text-secondary);margin-top:7px;font-size:12px;line-height:1.7}.exam-finish-dialog{border:1px solid var(--color-border-light);background:var(--color-surface);width:min(480px,100vw - 32px);color:var(--color-text-primary);border-radius:20px;padding:28px;box-shadow:0 24px 80px #0003}.exam-finish-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#15171c55}.exam-finish-dialog h2{margin-bottom:16px;font-size:21px;font-weight:650}.exam-finish-dialog p{color:var(--color-text-secondary);margin:12px 0;font-size:13px;line-height:1.8}.exam-finish-dialog footer{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.exam-paused{text-align:center;color:var(--color-text-secondary);margin:0 0 14px;font-size:12px}.exam-original .exam-pages{max-width:900px;margin:auto}.exam-original .web-introduction{margin-bottom:26px;padding:28px}.exam-original .exam-group-page{margin-bottom:26px;display:block}.exam-original .exam-reading-pane,.exam-original .exam-answer-pane{max-height:none;overflow:visible}.exam-original .exam-reading-pane{border-bottom:0;border-radius:16px 16px 0 0}.exam-original .exam-answer-pane{border-radius:0 0 16px 16px}.exam-original .exam-pane-heading{position:static}.exam-original .exam-reading-body{padding:36px 60px 24px}.exam-original .exam-question{padding:26px 60px}.exam-focus .exam-reading-pane,.exam-focus .exam-answer-pane{max-height:calc(100dvh - 220px)}.exam-focus.exam-original .exam-reading-pane,.exam-focus.exam-original .exam-answer-pane{max-height:none}:root[data-theme=dark] .text-brand-700,:root[data-theme=dark] .exam-option.selected .exam-option-letter,:root[data-theme=dark] .exam-status,:root[data-theme=dark] .exam-answer-numbers button.answered{color:#ffad75}@media (width>=1700px){.exam-reading-body{padding:32px 44px 48px}.exam-question{padding:30px 34px}}@media (width<=1100px){.exam-workbench-toolbar{flex-wrap:wrap}.exam-reading-pane,.exam-answer-pane{max-height:calc(100dvh - 315px)}.exam-reading-body,.exam-question{padding:22px}}@media (width>=761px) and (width<=1050px){.exam-paper-row{flex-wrap:wrap;gap:14px}.exam-paper-summary{flex-basis:100%}.exam-paper-actions{margin-left:76px}.exam-detail-heading{flex-wrap:wrap}.exam-detail-heading>.study-button{margin-left:76px}}@media (width<=760px){.exam-library,.exam-paper-detail{padding:24px 18px}.exam-library-toolbar{gap:12px}.exam-library-filters{gap:8px;width:100%}.exam-library-filters .study-segmented{flex-shrink:0}.exam-library-toolbar input[type=search]{flex:1;width:120px}.exam-paper-row{flex-wrap:wrap;gap:14px;padding:18px 16px}.exam-paper-summary{flex-basis:100%;gap:14px}.exam-paper-summary h2{font-size:16px}.exam-paper-actions{flex:1;margin-left:66px}.exam-paper-actions .study-button{flex:1;min-width:0;padding-inline:10px}.exam-detail-heading{flex-wrap:wrap;gap:18px;padding:18px 16px}.exam-detail-title{gap:14px}.exam-detail-heading>.study-button{margin-left:66px}.exam-workbench{padding:16px 12px 24px}.exam-workbench-title h1{font-size:14px}.exam-workbench-toolbar{gap:16px;padding-bottom:16px}.exam-workbench-actions{justify-content:space-between;width:100%}.exam-workbench-actions .study-segmented,.exam-workbench-actions .study-segmented button{flex:1}.exam-workbench-title .study-icon-button{width:30px}.exam-group-page{display:block}.exam-reading-pane,.exam-answer-pane,.exam-focus .exam-reading-pane,.exam-focus .exam-answer-pane{max-height:none;overflow:visible}.exam-reading-pane{border-bottom:0;border-radius:14px 14px 0 0}.exam-answer-pane{border-radius:0 0 14px 14px}.exam-pane-heading{padding:14px 20px;position:static}.exam-reading-body,.exam-original .exam-reading-body{padding:24px 22px}.exam-question,.exam-original .exam-question{padding:22px}.exam-question h3{font-size:var(--reading-font-size,19px)}.exam-ordering,.exam-matching{padding:18px}.exam-matching-columns{grid-template-columns:1fr}.exam-matching-choices{border-left:0;border-top:1px solid var(--color-border)}.exam-answer-card{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:18px}.exam-answer-card>header{display:block}.exam-answer-card>header span{margin-top:8px;display:block}.exam-result-banner,.exam-history-row{padding:20px;display:block}.exam-history-date{flex-direction:row;justify-content:space-between;align-items:center;margin-top:18px}.exam-history-row h2{font-size:15px}.exam-clock button{margin-left:4px}.exam-workbench-footer>.study-button{padding:9px 11px}}.exam-workbench-toolbar{z-index:16;background:var(--color-canvas);padding-top:12px;position:sticky;top:64px}.exam-group-page{scroll-margin-top:150px}.exam-finish-dialog{margin:auto}@media (width<=767px){.exam-workbench-toolbar{top:60px}}:root[data-theme=dark] .exam-question-answered .exam-question-number{color:#ffad75}@media (width>=1101px){.exam-reading-pane,.exam-answer-pane{min-height:300px;max-height:calc(100dvh - 344px)}.exam-focus .exam-reading-pane,.exam-focus .exam-answer-pane{max-height:calc(100dvh - 294px)}.exam-original .exam-reading-pane,.exam-original .exam-answer-pane{min-height:0;max-height:none}}.exam-option-unavailable{color:var(--color-text-secondary);background:var(--color-surface-muted)}.exam-options-compact .exam-option-unavailable{flex-direction:column;align-items:center;gap:2px}.exam-option-unavailable-reason{font-family:-apple-system,BlinkMacSystemFont,sans-serif;font-size:11px;line-height:1.5}.exam-ordering-warning{background:var(--color-brand-50);color:var(--color-brand-700);border-radius:10px;margin:16px 24px 0;padding:12px 16px;font-size:13px;line-height:1.65}.exam-library,.exam-paper-detail{max-width:1264px;padding:28px 32px}.exam-detail-heading h1{letter-spacing:-.025em;margin-bottom:0;font-size:26px}@media (width>=768px){.exam-workbench:not(.exam-original) .exam-session-layout{flex-direction:column;height:calc(100dvh - 124px);min-height:580px;display:flex}.exam-workbench.exam-focus:not(.exam-original) .exam-session-layout{height:calc(100dvh - 48px)}.exam-session-layout>:not(.exam-pages){flex-shrink:0}.exam-workbench:not(.exam-original) .exam-pages{flex:1;min-height:280px}.exam-workbench:not(.exam-original) .exam-group-page{align-items:stretch;height:100%;min-height:0}.exam-workbench:not(.exam-original) .exam-reading-pane,.exam-workbench:not(.exam-original) .exam-answer-pane{height:100%;min-height:0;max-height:none}.exam-session-layout>.exam-answer-card{max-height:26dvh;overflow:auto}.exam-workbench-toolbar{padding-bottom:10px}.exam-workbench-footer{margin-top:10px}}@media (width<=767px){.exam-library,.exam-paper-detail{padding:22px 16px}.exam-detail-heading h1{font-size:24px}}.exam-original-paper-dialog{z-index:60;border:1px solid var(--color-border-light);background:var(--color-surface);width:auto;max-width:none;max-height:none;color:var(--color-text-primary);border-radius:16px;flex-direction:column;gap:12px;padding:16px;display:flex;position:fixed;inset:4vh 4vw}.exam-original-paper-dialog header{justify-content:space-between;align-items:center;gap:16px;display:flex}.exam-original-paper-dialog iframe{border:1px solid var(--color-border-light);background:var(--color-surface-muted);border-radius:10px;flex:1;width:100%;min-height:0}.exam-original-paper-dialog p{color:var(--color-text-muted);margin:0;font-size:12px}.exam-italic{font-style:italic}.exam-superscript{vertical-align:super;font-size:.75em}.exam-source-row{grid-template-columns:repeat(2,minmax(0,1fr));align-items:center;gap:1.5em;margin-block:1.5em;display:grid}.exam-source-column{min-width:0}.exam-source-column .exam-content-block{margin-block:.25em}.exam-source-column figure{margin:0}.exam-source-column img{max-width:100%;height:auto}.exam-source-box{text-indent:0;border:1px solid;align-items:stretch;width:13em;max-width:100%;min-height:1.6em;display:flex}.exam-source-box>span:first-child{padding-inline:.4em}.exam-source-box-split{border:0;gap:1em}.exam-source-box-split>span:first-child{border:1px solid;padding-inline:1em}.exam-source-box-split .exam-source-box-space{border:1px solid}.exam-source-box-space{flex:1}@media (width<=640px){.exam-source-row{grid-template-columns:1fr}}.exam-content-block[data-role=section_title],.exam-content-block[data-role=part_title],.exam-content-block[data-role=text_title],.exam-content-block[data-role=paper_title]{text-align:center}.exam-option-text{flex:1;min-width:0;display:block}.exam-question h3>span:last-child{flex:1;min-width:0}.study-app.study-app-immersive>.study-main{background:var(--color-surface);min-height:100dvh;margin:0;padding:0}.exam-workbench.exam-immersive{max-width:none;padding:0 28px}.exam-immersive .exam-workbench-toolbar{border-bottom:1px solid var(--color-border-light);background:var(--color-surface);grid-template-columns:1fr minmax(0,1.3fr) 1fr;align-items:center;gap:20px;margin:0;padding:14px 0;display:grid;top:0}.exam-exit,.review-exit{align-items:center;gap:20px;display:flex}.exam-exit svg,.review-exit svg{width:150px;height:34px}.exam-immersive .exam-workbench-title{text-align:center;min-width:0;display:block}.exam-immersive .exam-workbench-title h1{overflow-wrap:anywhere;font-size:18px}.exam-immersive .exam-workbench-title>span{color:var(--color-text-secondary);font-size:12px}.exam-immersive .exam-workbench-actions{justify-content:flex-end;gap:16px;width:auto}.exam-immersive .exam-clock{font-variant-numeric:tabular-nums;font-size:14px}.exam-immersive .exam-save-state{white-space:nowrap;font-size:12px}.exam-taskbar{justify-content:space-between;align-items:center;gap:20px;padding:12px 0;display:flex;position:relative}.exam-group-select select{background:var(--color-surface);max-width:100%;color:var(--color-text-primary);border:0;padding:8px 4px;font-size:14px}.exam-taskbar-actions{gap:8px;display:flex}.exam-tools{z-index:25;border:1px solid var(--color-border-light);background:var(--color-surface);border-radius:12px;flex-wrap:wrap;justify-content:space-between;gap:14px;width:320px;max-width:calc(100vw - 32px);padding:20px;display:flex;position:absolute;top:58px;right:0;box-shadow:0 12px 36px #0002}.exam-tools .study-segmented{flex-basis:100%;display:flex!important}.exam-immersive .exam-answer-card{z-index:24;width:min(760px,100vw - 56px);position:absolute;top:140px;right:28px;overflow:auto;box-shadow:0 12px 36px #0002;max-height:65dvh!important}.exam-immersive .exam-answer-card>header{align-items:center;gap:12px}.exam-immersive .exam-group-page{gap:0}.exam-immersive .exam-reading-pane,.exam-immersive .exam-answer-pane{border:0;border-radius:0}.exam-immersive .exam-reading-pane{border-right:1px solid var(--color-border-light)}.exam-immersive .exam-pane-heading{display:none}.exam-immersive .exam-reading-body{padding:26px 44px}.exam-immersive .exam-workbench-footer{border-top:1px solid var(--color-border-light);background:var(--color-surface);margin:0;padding:14px 0;font-size:13px}.exam-workbench.exam-immersive.exam-original .exam-pages{max-width:960px}@media (width>=768px){.exam-workbench.exam-immersive:not(.exam-original) .exam-session-layout{height:100dvh;min-height:620px}.exam-immersive .exam-session-layout>:not(.exam-pages){flex-shrink:0}}.review-immersive.review-editor .review-toolbar{z-index:20;background:var(--color-surface);flex-wrap:nowrap;gap:24px;min-height:68px;padding:14px 28px;display:flex;position:sticky;top:0}.review-immersive.review-editor .review-toolbar h1{text-align:center;overflow-wrap:anywhere;flex:1;min-width:0;margin:0;font:500 18px/1.4 system-ui,sans-serif}.review-immersive.review-editor .review-toolbar h1 span{white-space:nowrap}.review-immersive.review-editor .review-toolbar>label{white-space:nowrap;font-size:13px}.review-immersive.review-editor .review-tools{z-index:25;border:1px solid var(--color-border-light);background:var(--color-surface);border-radius:12px;gap:12px;width:300px;max-height:75dvh;padding:20px;display:grid;position:absolute;top:65px;right:28px;overflow:auto;box-shadow:0 12px 36px #0002}.review-immersive.review-editor .review-tools label{justify-content:space-between;align-items:center;gap:12px;display:flex}.review-immersive.review-editor .review-workspace{display:block;position:relative}.review-immersive.review-editor .review-reader{border-radius:0;width:100%;max-width:960px;min-height:calc(100dvh - 140px);margin:auto;padding:42px 40px 110px}.review-immersive.review-editor .review-source-block{margin:1.5rem 0}.review-immersive.review-editor .review-directory{z-index:22;border:1px solid var(--color-border-light);width:300px;max-height:calc(100dvh - 160px);position:fixed;top:82px;left:24px;box-shadow:0 12px 36px #0002}.review-immersive.review-editor .review-details{z-index:22;border:1px solid var(--color-border-light);border-radius:12px;width:300px;max-width:calc(100vw - 48px);max-height:calc(100dvh - 190px);padding:20px;position:fixed;inset:100px 24px auto auto;box-shadow:0 12px 36px #0002}.review-immersive.review-editor .review-close-panel{display:none}.review-immersive.review-editor .review-session-footer{z-index:18;border-top:1px solid var(--color-border-light);background:var(--color-surface);justify-content:space-between;align-items:center;gap:16px;padding:14px 28px;font-size:13px;display:flex;position:sticky;bottom:0}.review-session-footer>div{gap:12px;display:flex}.review-immersive.review-editor .review-end-dialog{margin:auto}.review-end-dialog footer{align-items:center;gap:12px;display:flex}.review-end-dialog a{color:var(--color-brand-700)}@media (width<=900px){.exam-immersive .exam-workbench-toolbar{grid-template-columns:1fr;gap:8px}.exam-immersive .exam-workbench-title{text-align:left}.review-immersive.review-editor .review-toolbar{flex-wrap:wrap;gap:12px}.review-immersive.review-editor .review-toolbar h1{flex-basis:50%}}:root{--font-sans:-apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono:"SFMono-Regular", Consolas, "JetBrains Mono", monospace;--reading-font-size:19px;--reading-line-height:1.85;--study-shadow:0 2px 6px #26231e05, 0 8px 24px #26231e04;--study-glass:#ffffffed;--study-duration:.16s;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-paper=warm]{--color-reading:#fcf6e9}:root[data-paper=sage]{--color-reading:#eef3e9}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--color-canvas:#19191b;--color-surface:#252527;--color-surface-card:#252527;--color-surface-muted:#303032;--color-surface-hover:#3b3b3e;--color-reading:#252527;--color-text-primary:#eeeeed;--color-text-secondary:#cccac6;--color-text-muted:#aaa8a3;--color-border-light:#414144;--color-brand-50:#3c2d23;--color-brand-100:#493124;--color-brand-200:#744626;--color-brand-700:#b94c17;--color-success:#82cba9;--color-success-bg:#213b2e;--color-danger:#ffaaa1;--color-danger-bg:#482c2b;--color-info:#a9c7f0;--color-info-bg:#273448;--study-glass:#252527f2;--study-shadow:0 2px 12px #00000012}:root[data-theme=dark][data-paper=warm]{--color-reading:#2d2922}:root[data-theme=dark][data-paper=sage]{--color-reading:#252e27}:root[data-contrast=true]{--color-text-muted:#494741;--color-border-light:#aaa69d}:root[data-theme=dark][data-contrast=true]{--color-text-muted:#e1dfda;--color-border-light:#8b8985}:root[data-reduce-transparency=true]{--study-glass:var(--color-surface)}:root[data-reduce-motion=true] *,:root[data-reduce-motion=true] :before,:root[data-reduce-motion=true] :after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}body{background:var(--color-canvas)}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button:not(:disabled),select{cursor:pointer}button:disabled{cursor:not-allowed}input,textarea,select{accent-color:var(--color-brand-700)}.study-app{--sidebar-width:200px;min-height:100dvh;color:var(--color-text-primary)}.study-app-collapsed{--sidebar-width:68px}.study-topbar{height:64px;inset:0 0 auto var(--sidebar-width);z-index:30;border-bottom:1px solid var(--color-border-light);background:var(--study-glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);align-items:center;gap:24px;padding:0 24px 0 18px;display:flex;position:fixed}.study-brand-area{flex-shrink:0;align-items:center;gap:6px;width:154px;display:flex}.study-brand{width:170px;height:38px;display:block}.study-top-actions{align-items:center;gap:14px;margin-left:auto;display:flex}.study-account-button{align-items:center;gap:9px;font-size:12px;display:flex}.study-account-button>span:first-child{background:var(--color-brand-50);width:32px;height:32px;color:var(--color-text-secondary);border-radius:50%;place-items:center;display:grid}.study-sidebar{width:var(--sidebar-width);background:var(--color-surface);border-right:1px solid var(--color-border-light);z-index:20;transition:width var(--study-duration);flex-direction:column;padding:0 12px 12px;display:flex;position:fixed;top:0;bottom:0;left:0}.study-sidebar nav{align-content:start;gap:5px;display:grid;overflow:auto}.study-nav-item{min-height:42px;color:var(--color-text-secondary);white-space:nowrap;border-radius:10px;align-items:center;gap:14px;padding:10px 12px;font-size:13px;display:flex}.study-nav-parent{text-align:left;width:100%}.study-nav-children{gap:4px;margin:4px 0 8px 16px;display:grid}.study-nav-item .study-nav-chevron{width:14px;height:14px;margin-left:auto}.study-app-collapsed .study-nav-chevron{display:none}.study-nav-item svg,.study-icon-button svg,.study-collapse svg{fill:none;stroke:currentColor;stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:18px;height:18px}.study-nav-item:hover{background:var(--color-surface-muted)}.study-nav-item.active{background:var(--color-brand-50);color:var(--color-brand-800);font-weight:600}:root[data-theme=dark] .study-nav-item.active{color:#ffac75}.study-app-collapsed .study-nav-item span{display:none}.study-app-collapsed .study-nav-item{justify-content:center;padding:10px}.study-collapse{width:42px;min-height:42px;color:var(--color-text-muted);border-radius:10px;align-self:center;place-items:center;margin-top:auto;display:grid}.study-collapse:hover{background:var(--color-surface-muted)}.study-main{margin:64px 0 0 var(--sidebar-width);min-width:0;min-height:calc(100dvh - 112px);padding:32px clamp(20px,3vw,44px)}.study-app-practice .study-main{padding-top:20px}.study-footer{margin-left:var(--sidebar-width);background:var(--color-canvas);padding:4px 12px}.study-mobile-menu,.study-sidebar-overlay{display:none}.study-icon-button,.appearance-trigger{min-width:38px;min-height:38px;color:var(--color-text-secondary);border-radius:10px;justify-content:center;align-items:center;font-size:15px;font-weight:500;display:inline-flex}.study-icon-button:hover,.appearance-trigger:hover{background:var(--color-surface-muted)}.reading-preferences{color:var(--color-text-primary);background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:22px;width:min(390px,100vw - 24px);max-height:calc(100dvh - 32px);margin:auto;padding:24px;overflow:auto;box-shadow:0 18px 60px #00000026}.reading-preferences::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#14131035}.reading-preferences-inline{width:100%;max-width:760px;max-height:none;box-shadow:var(--study-shadow);margin:0 auto}.reading-preferences-heading{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.reading-preferences-heading h2{font-size:17px;font-weight:600}.reading-setting{border-bottom:1px solid var(--color-border-light);flex-direction:column;gap:12px;padding:16px 0;font-size:13px;font-weight:500;display:flex}.study-segment{border:1px solid var(--color-border-light);background:var(--color-surface-muted);border-radius:11px;gap:3px;padding:4px;display:flex}.study-segment button{color:var(--color-text-secondary);border-radius:8px;flex:1;padding:8px 10px;font-size:12px}.study-segment button[aria-pressed=true]{background:var(--color-surface);color:var(--color-text-primary);box-shadow:0 1px 4px #00000012}.paper-choices{gap:12px;display:flex}.paper-choices button{color:var(--color-text-secondary);border:1px solid #0000;border-radius:12px;flex:1;padding:5px;font-size:12px}.paper-choices button[aria-pressed=true]{border-color:var(--color-brand-700)}.paper-sample{color:#262621;border:1px solid #26262112;border-radius:8px;place-items:center;height:45px;margin-bottom:8px;font:23px Georgia,serif;display:grid}.paper-original{background:#fff}.paper-warm{background:#fcf6e9}.paper-sage{background:#eef3e9}.reading-range{flex-direction:row;justify-content:space-between;align-items:center}.reading-range output{color:var(--color-text-muted);margin-left:10px;font-size:12px}.reading-range input{width:140px}.reading-switch{flex-direction:row;justify-content:space-between;align-items:center;gap:16px}.reading-switch small{color:var(--color-text-muted);margin-top:5px;font-size:12px;font-weight:400;display:block}.reading-switch input{appearance:none;background:var(--color-surface-hover);border:1px solid var(--color-border-light);width:38px;height:23px;transition:background var(--study-duration);cursor:pointer;border-radius:20px;flex-shrink:0;position:relative}.reading-switch input:before{content:"";width:17px;height:17px;transition:transform var(--study-duration);background:#fff;border-radius:50%;display:block;position:absolute;top:2px;left:2px;box-shadow:0 1px 3px #0002}.reading-switch input:checked{background:var(--color-brand-700);border-color:var(--color-brand-700)}.reading-switch input:checked:before{transform:translate(15px)}.reading-setting-note{color:var(--color-text-muted);margin-top:14px;font-size:12px;line-height:1.6}.study-paper{color:var(--color-text-primary);background:var(--color-reading)!important}.study-prose{font-size:var(--reading-font-size)!important;line-height:var(--reading-line-height)!important}.study-surface{background:var(--color-surface);border:1px solid var(--color-border-light);box-shadow:var(--study-shadow);border-radius:18px}.study-library{max-width:1200px;margin:auto}.study-page-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:26px;display:flex}.study-page-heading h1{letter-spacing:-.8px;font-size:28px;font-weight:650}.study-page-heading p{color:var(--color-text-muted);margin-top:7px;font-size:14px}.study-source-tabs{border:1px solid var(--color-border-light);background:var(--color-border-light);border-radius:14px;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;display:grid;overflow:hidden}.study-source-tabs a{background:var(--color-surface);transition:background var(--study-duration);flex-direction:column;gap:5px;padding:14px 16px 15px;display:flex}.study-source-tabs a:hover{background:var(--color-surface-muted)}.study-source-tabs a.is-active{background:var(--color-brand-50)}.study-source-tab-title{color:var(--color-text-primary);justify-content:space-between;align-items:baseline;gap:10px;font-size:14px;font-weight:600;display:flex}.study-source-tabs a.is-active .study-source-tab-title{color:var(--color-brand-800)}:root[data-theme=dark] .study-source-tabs a.is-active .study-source-tab-title{color:#ffac75}.study-source-tab-title b{font-variant-numeric:tabular-nums;font-size:19px;font-weight:650}.study-source-tabs small{color:var(--color-text-muted);font-size:12px}@media (width>=640px){.study-source-tabs{grid-template-columns:repeat(4,minmax(0,1fr))}}.study-library-heading{margin-bottom:18px}.study-library-filters{margin-bottom:24px}.study-library-search{background:var(--color-surface-muted);border:1px solid #0000;border-radius:12px;align-items:center;gap:10px;padding:0 14px;display:flex}.study-library-search:focus-within{border-color:var(--color-brand-500);background:var(--color-surface)}.study-library-search svg{width:18px;height:18px;color:var(--color-text-secondary);flex-shrink:0}.study-library-search input{width:100%;min-width:0;min-height:44px;color:var(--color-text-primary);background:0 0;border:0;outline:none;font-size:14px}.study-stage-filters{border-bottom:1px solid var(--color-border-light);scrollbar-width:thin;gap:28px;margin-top:12px;display:flex;overflow-x:auto}.study-stage-filters button{min-height:50px;color:var(--color-text-secondary);flex:none;padding:0 4px;font-size:15px;position:relative}.study-stage-filters button[aria-pressed=true]{color:var(--color-text-primary);font-weight:650}.study-stage-filters button[aria-pressed=true]:after{content:"";background:var(--color-brand-500);border-radius:3px;width:24px;height:3px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.study-category-filters{flex-wrap:wrap;gap:8px;padding-top:16px;display:flex}.study-category-filters button{background:var(--color-surface-muted);min-height:36px;color:var(--color-text-secondary);border-radius:999px;padding:6px 20px;font-size:13px}.study-category-filters button[aria-pressed=true]{background:var(--color-brand-700);color:#fff;font-weight:600}.study-stage-filters button:hover{color:var(--color-brand-700)}.study-category-filters button:hover{box-shadow:inset 0 0 0 1px var(--color-brand-300)}.study-library-filter-meta{color:var(--color-text-secondary);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;font-size:12px;display:flex}.study-library-filter-meta label{align-items:center;gap:6px;min-height:32px;display:flex}@media (width<=767px){.study-stage-filters{gap:22px}.study-category-filters{gap:6px}.study-category-filters button{min-height:40px;padding-inline:16px}}.study-book-grid{grid-template-columns:repeat(auto-fill,minmax(175px,1fr));gap:24px 20px;display:grid}.study-book-cover{color:#fff;background:linear-gradient(135deg,#b07952,#8b4c2f);border-radius:4px 12px 12px 4px;flex-direction:column;justify-content:space-between;width:116px;height:160px;padding:17px 14px;display:flex;overflow:hidden;box-shadow:inset 4px 0 #fff2,3px 4px 10px #00000015}.study-book-cover small{letter-spacing:1px;font-size:10px}.study-book-cover b{font:52px Georgia,serif}.study-book-cover span{font-size:12px;line-height:1.5}.study-book-card:nth-child(3n+2) .study-book-cover{background:linear-gradient(135deg,#839387,#4f675c)}.study-book-card:nth-child(3n) .study-book-cover{background:linear-gradient(135deg,#839bad,#4b6478)}.study-practice-frame{max-width:1280px;margin:auto}.study-practice-grid{grid-template-columns:minmax(0,1fr);align-items:start;gap:20px;display:grid}.study-practice-stage{min-width:0}.study-practice-tools{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.study-practice-stage .study-paper{box-shadow:var(--study-shadow)}@media (width>=1100px){.study-practice-grid.with-queue{grid-template-columns:190px minmax(0,1fr)}.study-practice-grid.with-stats{grid-template-columns:minmax(0,1fr) 180px}.study-practice-grid.with-queue.with-stats{grid-template-columns:190px minmax(0,1fr) 180px}.study-practice-queue,.study-practice-stats{max-height:calc(100dvh - 110px);position:sticky;top:84px;overflow:auto}}@media (width<=1099px){.study-practice-queue{order:2}.study-practice-stats{order:3}}@media (width<=767px){.study-topbar{gap:8px;height:60px;padding:0 12px;left:0}.study-brand-area{width:auto}.study-brand{transform-origin:0;width:153px;transform:scale(.9)}.study-account-name{display:none}.study-top-actions{gap:2px}.study-mobile-menu{min-width:32px;display:inline-flex}.study-sidebar{width:218px;transition:transform var(--study-duration);z-index:45;padding-top:16px;top:60px;transform:translate(-100%)}.study-sidebar-open{transform:translate(0)}.study-app-collapsed .study-nav-item span{display:inline}.study-app-collapsed .study-nav-item{justify-content:flex-start}.study-collapse{display:none}.study-sidebar-overlay{z-index:40;background:#14131040;display:block;position:fixed;inset:60px 0 0}.study-main{min-height:calc(100dvh - 110px);margin:60px 0 0;padding:22px 16px}.study-footer{margin-left:0}.study-book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px}.study-page-heading h1{font-size:25px}.reading-preferences{padding:20px}.reading-preferences-inline{max-width:100%}.study-account-button>span:first-child{width:28px;height:28px}input:not([type=range]):not([type=checkbox]),textarea,select{font-size:16px}}@media (pointer:coarse){.study-nav-item,.study-icon-button,.appearance-trigger,.study-segment button,.paper-choices button{min-height:44px}}.study-button{border:1px solid var(--color-border-light);background:var(--color-surface);min-height:40px;color:var(--color-text-primary);transition:background var(--study-duration);border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:9px 15px;font-size:12px;font-weight:550;display:inline-flex}.study-button:hover:not(:disabled){background:var(--color-surface-muted)}.study-button:disabled{opacity:.5}.study-button-primary{background:var(--color-brand-700);color:#fff;border-color:#0000}.study-button-primary:hover:not(:disabled){background:var(--color-brand-800)}.study-segmented{border:1px solid var(--color-border-light);background:var(--color-surface-muted);border-radius:10px;align-items:center;gap:3px;padding:3px;display:flex}.study-segmented button{min-height:34px;color:var(--color-text-secondary);white-space:nowrap;border-radius:7px;padding:8px 13px;font-size:12px}.study-segmented button.active{background:var(--color-surface);color:var(--color-text-primary);box-shadow:0 1px 4px #00000012}.study-main:has(.exam-workbench){padding:12px 16px}:is(.study-main:has(.exam-library),.study-main:has(.exam-paper-detail)){padding:0}@media (pointer:coarse){.study-button,.study-segmented button,.exam-answer-numbers button{min-height:44px}}@media (width<=760px){.study-main:has(.exam-workbench){padding:4px}}.study-mobile-menu{display:none}@media (width<=767px){.study-mobile-menu{display:inline-flex}}@media (width>=768px){.study-brand-area{display:none}}.study-app-focus{--sidebar-width:0px;background:var(--color-canvas);min-height:100dvh}.study-app-focus>.study-main{min-height:100dvh;margin:0;padding:20px clamp(16px,3vw,44px)}.study-app-focus .study-practice-frame{max-width:1500px;min-height:calc(100dvh - 40px)}.study-app-focus .study-practice-grid{grid-template-columns:minmax(0,1fr)}.study-app-focus .study-practice-stage{min-height:calc(100dvh - 140px)}.study-service-pass-notice{border:1px solid var(--color-border-light);background:var(--color-surface);max-width:1200px;color:var(--color-text-secondary);border-radius:12px;justify-content:space-between;align-items:flex-start;gap:16px;margin:0 auto 16px;padding:11px 14px;font-size:13px;display:flex}.study-service-pass-notice[data-tone=warning]{border-color:var(--color-danger);background:var(--color-danger-bg);color:var(--color-text-primary)}.study-service-pass-notice small{color:var(--color-text-muted);margin-top:3px;font-size:12px;display:block}.study-service-pass-notice button{min-width:28px;min-height:28px;color:var(--color-text-muted);border-radius:8px;flex-shrink:0;font-size:16px;line-height:1}.study-service-pass-notice button:hover{background:var(--color-surface-muted)}.study-focus-notice{background:var(--color-brand-50);color:var(--color-brand-700);margin:0;padding:10px 20px;font-size:13px;line-height:1.5}.study-app:not(.study-app-focus)>.study-focus-notice{z-index:50;border-radius:10px;max-width:480px;position:fixed;top:64px;right:16px}.study-app-focus .exam-workbench-actions .study-segmented{display:none}.study-account{flex-shrink:0;position:relative}.study-account-button{border-radius:12px;min-height:44px;padding:4px 6px}.study-account-button:hover,.study-account-button[aria-expanded=true]{background:var(--color-surface-muted)}.study-account-name{text-overflow:ellipsis;white-space:nowrap;max-width:140px;overflow:hidden}.study-account-avatar{background:var(--color-brand-50);width:40px;height:40px;color:var(--color-brand-700);border-radius:50%;flex-shrink:0;place-items:center;display:grid;overflow:hidden}.study-account-avatar img{object-fit:cover;width:100%;height:100%}.study-account-chevron{fill:none;width:14px;height:14px;stroke:var(--color-text-muted);stroke-width:1.6px}.study-account-popover{border:1px solid var(--color-border-light);background:var(--color-surface);width:min(270px,100vw - 24px);max-height:calc(100dvh - 84px);color:var(--color-text-primary);border-radius:16px;padding:8px;position:absolute;top:calc(100% + 8px);right:0;overflow-y:auto;box-shadow:0 12px 36px #00000024,0 2px 6px #0000000d}.study-account-summary{align-items:center;gap:12px;padding:12px 10px 16px;display:flex}.study-account-details{flex-direction:column;gap:3px;min-width:0;display:flex}.study-account-details strong{text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600;overflow:hidden}.study-account-details>span{color:var(--color-text-secondary);font-size:12px;line-height:1.5}.study-account-shortcuts{border-top:1px solid var(--color-border-light);padding-top:6px}.study-account-shortcuts a,.study-account-signout button{text-align:left;border-radius:9px;align-items:center;gap:10px;width:100%;min-height:44px;padding:10px 12px;font-size:14px;display:flex}.study-account-shortcuts a:hover,.study-account-signout button:hover{background:var(--color-surface-muted)}.study-account-shortcuts svg,.study-account-signout svg{fill:none;stroke:currentColor;stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:18px;height:18px}.study-account-signout{border-top:1px solid var(--color-border-light);margin-top:6px;padding-top:6px}.study-account-signout button{color:var(--color-text-secondary)}.study-account-signout button:disabled{cursor:wait;opacity:.6}.study-account-signout p{color:var(--color-text-primary);padding:8px 12px;font-size:12px;line-height:1.5}.study-account button:focus-visible,.study-account a:focus-visible{outline:2px solid var(--color-brand-500);outline-offset:2px}@media (width<=640px){.study-account-chevron{display:none}}.study-sidebar-brand{flex-shrink:0;align-items:center;height:80px;padding-left:3px;display:flex;overflow:hidden}.study-sidebar-brand svg{flex-shrink:0}.study-app-collapsed .study-sidebar-brand{width:40px;padding-left:3px}@media (width<=767px){.study-sidebar-brand{display:none}}.study-page{width:100%;max-width:1200px;margin-inline:auto}.study-form-page{width:100%;max-width:960px;margin-inline:auto}.study-page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.study-page-header h1{font-size:24px;font-weight:700;line-height:1.35}.study-page-header button{white-space:nowrap}.study-scroll-tabs{gap:8px;padding-bottom:4px;display:flex;overflow-x:auto}.study-scroll-tabs>*{white-space:nowrap;flex-shrink:0}.study-source-tabs{border:0;border-bottom:1px solid var(--color-border-light);background:0 0;border-radius:0;gap:8px;padding-bottom:8px;display:flex;overflow-x:auto}.study-source-tabs a{border:0;border-radius:10px;flex:none;min-width:0;padding:10px 14px}.study-source-tab-title{gap:12px;font-size:14px}.study-source-tab-title b{font-size:13px;font-weight:500}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}.navigation-recovery[data-v-fd556424]{right:max(24px, env(safe-area-inset-right));bottom:max(24px, env(safe-area-inset-bottom));z-index:200;pointer-events:none;width:min(360px,100vw - 32px);position:fixed}.navigation-recovery__panel[data-v-fd556424]{pointer-events:auto;border:1px solid var(--color-border-light);background:var(--color-surface-card);border-radius:14px;align-items:flex-start;gap:12px;padding:18px;display:flex;box-shadow:0 4px 20px #0000001a}.navigation-recovery__icon[data-v-fd556424]{width:22px;height:22px;color:var(--color-danger);flex:0 0 22px}.navigation-recovery__body[data-v-fd556424]{flex:1;min-width:0}.navigation-recovery__body h2[data-v-fd556424]{color:var(--color-text-primary);overflow-wrap:anywhere;margin:0;font-size:14px;font-weight:600;line-height:22px}.navigation-recovery__body p[data-v-fd556424]{color:var(--color-text-secondary);margin:4px 0 0;font-size:13px;line-height:20px}.navigation-recovery__actions[data-v-fd556424]{flex-wrap:wrap;align-items:center;gap:16px;margin-top:12px;display:flex}.navigation-recovery__actions button[data-v-fd556424]{min-height:32px;font-size:13px;font-weight:500}.navigation-recovery__retry[data-v-fd556424]{background:var(--color-brand-500);color:#fff;border-radius:7px;padding:5px 14px}.navigation-recovery__reload[data-v-fd556424]{color:var(--color-text-secondary);text-underline-offset:3px}.navigation-recovery__reload[data-v-fd556424]:hover{color:var(--color-text-primary);text-decoration:underline}.navigation-recovery__close[data-v-fd556424]{width:28px;height:28px;color:var(--color-text-secondary);border-radius:6px;flex:0 0 28px;place-items:center;margin:-4px -4px 0 0;display:grid}.navigation-recovery__close svg[data-v-fd556424]{width:20px;height:20px}.navigation-recovery__close[data-v-fd556424]:hover{background:var(--color-surface-muted)}.navigation-recovery button[data-v-fd556424]:disabled{opacity:.5;cursor:wait}.navigation-recovery--initial[data-v-fd556424]{pointer-events:auto;background:var(--color-surface);place-items:center;width:auto;padding:24px;display:grid;inset:0}.navigation-recovery--initial .navigation-recovery__panel[data-v-fd556424]{width:min(100%,420px);box-shadow:none;padding:24px}.navigation-recovery--initial h2[data-v-fd556424]{font-size:16px;line-height:24px}@media (width<=600px){.navigation-recovery[data-v-fd556424]:not(.navigation-recovery--initial){right:16px;bottom:max(16px, env(safe-area-inset-bottom))}.navigation-recovery__actions button[data-v-fd556424]{min-height:40px}}
