/*! tailwindcss v4.2.1 | 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-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}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--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)}}@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}}@layer components;@layer utilities{.fixed{position:fixed}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.grid{display:grid}.hidden{display:none}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.border{border-style:var(--tw-border-style);border-width:1px}.italic{font-style:italic}.blur{--tw-blur:blur(8px);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))}}:root{--v3-navy-950:#071a36;--v3-navy-900:#0a2550;--v3-navy-800:#0b3b78;--v3-blue-700:#0b57d0;--v3-blue-600:#0a4cb8;--v3-blue-100:#eaf2ff;--v3-teal-600:#009b82;--v3-teal-100:#e4f8f3;--v3-orange-500:#ff7a1a;--v3-red-500:#e44d55;--v3-text:#13233a;--v3-text-2:#3d4d63;--v3-muted:#65758b;--v3-line:#dbe3ec;--v3-surface:#f7f9fc;--v3-shadow-rest:0 1px 2px #0c2a500f;--v3-shadow-lift:0 10px 32px #0c2a501f;--v3-radius-card:16px;--v3-white:#fff;--v3-ease:cubic-bezier(.22, .61, .36, 1);--navy-950:#071a36;--navy-900:#0a2550;--navy-800:#0b3b78;--blue-700:#0b57d0;--blue-100:#eaf2ff;--teal-600:#009b82;--teal-100:#e4f8f3;--orange-500:#ff7a1a;--red-500:#e44d55;--text:#13233a;--muted:#65758b;--line:#dbe3ec;--line-strong:#c6d1df;--surface:#f7f9fc;--white:#fff;--shadow:0 10px 32px #0c2a5017}*{box-sizing:border-box}html{background:var(--white)}body{background:var(--white);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Noto Sans CJK SC,Segoe UI,sans-serif;font-size:15px;line-height:1.6}button,input,select{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #0b57d03d}button:disabled{cursor:not-allowed;opacity:.42}.brand{color:var(--navy-950);letter-spacing:-.02em;margin:0;font-size:21px;font-weight:750}.brand-button{cursor:pointer;background:0 0;border:0;padding:0}.primary-button,.secondary-button,.submit-button,.text-button,.mark-button{cursor:pointer;border-radius:5px;min-height:44px;font-size:15px;font-weight:650;transition:background .16s,border-color .16s,color .16s,transform .16s}.primary-button,.submit-button{border:1px solid var(--navy-800);background:var(--navy-800);color:var(--white)}.primary-button{padding:10px 24px}.submit-button{padding:10px 30px}.primary-button:hover,.submit-button:hover{background:var(--navy-900);transform:translateY(-1px)}.secondary-button{border:1px solid var(--line-strong);background:var(--white);color:var(--navy-900);padding:9px 20px}.secondary-button:hover{border-color:var(--blue-700);color:var(--blue-700)}.text-button{min-height:36px;color:var(--blue-700);background:0 0;border:0;padding:5px 8px}.text-button:hover{text-decoration:underline}.home-shell{width:min(1180px,100% - 48px);margin:0 auto}.home-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-end;gap:48px;min-height:330px;padding:72px 0 54px;display:flex}.home-header>div{max-width:760px}.home-header h1{max-width:720px;color:var(--navy-950);letter-spacing:-.045em;margin:32px 0 20px;font-size:clamp(38px,5vw,64px);font-weight:760;line-height:1.08}.home-lead{max-width:680px;color:var(--muted);margin:0;font-size:18px}.home-primary{flex:none;margin-bottom:6px}.rules-rail{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);display:grid}.rules-rail>div{border-right:1px solid var(--line);flex-direction:column;justify-content:center;min-height:116px;padding:20px 34px;display:flex}.rules-rail>div:first-child{padding-left:0}.rules-rail>div:last-child{border-right:0}.rules-rail strong{color:var(--navy-900);font-size:16px}.rules-rail span{color:var(--muted);font-size:14px}.content-section{padding:72px 0 36px}.practice-section,.practical-section,.history-section{border-top:1px solid var(--line)}.section-heading{justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:26px;display:flex}.section-heading h2{color:var(--navy-950);letter-spacing:-.02em;margin:0 0 6px;font-size:28px}.section-heading p{color:var(--muted);margin:0}.bank-counts{color:var(--muted);white-space:nowrap;gap:18px;display:flex}.plain-status{color:var(--muted);font-size:14px}.exam-list{border-top:1px solid var(--line-strong)}.exam-row{border-bottom:1px solid var(--line);grid-template-columns:54px minmax(0,1fr) 160px 116px;align-items:center;gap:18px;min-height:102px;display:grid}.row-index{color:var(--blue-700);font-size:14px;font-weight:750}.row-main h3{color:var(--navy-900);margin:0 0 3px;font-size:18px}.row-main p,.row-meta{color:var(--muted);margin:0;font-size:14px}.row-meta{text-align:right}.source-note{border-left:3px solid var(--orange-500);color:#6b553e;background:#fff9f3;gap:20px;margin-top:20px;padding:16px 18px;display:flex}.source-note strong{color:#4d3926;flex:none}.practice-entry-row{border-top:1px solid var(--line-strong)}.practice-export-tools{justify-items:end;gap:8px;display:grid}.export-status{color:var(--teal-600);font-size:13px}.history-table{border-top:1px solid var(--line-strong)}.history-row{border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;grid-template-columns:1.2fr 90px 1.4fr 190px;align-items:center;gap:20px;width:100%;min-height:70px;padding:0;display:grid}.history-row:hover{background:var(--surface)}.history-row strong{color:var(--blue-700);font-size:20px}.history-row span,.history-row time{color:var(--muted)}.wrong-stats-list{border-top:1px solid var(--line)}.wrong-stat-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(220px,.34fr) minmax(0,1fr);gap:24px;padding:18px 0;display:grid}.wrong-stat-row>div{justify-content:space-between;align-items:center;gap:14px;display:flex}.wrong-stat-row span{color:var(--muted);font-size:13px}.wrong-stat-row strong{color:var(--red-500);flex:none}.wrong-stat-row p,.wrong-stats-empty{margin:0;line-height:1.65}.wrong-stats-empty{border-top:1px solid var(--line);color:var(--muted);padding:22px 0}.site-footer{border-top:1px solid var(--line);color:var(--muted);padding:32px 0 48px;font-size:13px}.exam-shell,.result-shell,.practical-shell{background:var(--white);min-height:100vh}.exam-header,.result-header,.practical-header{border-bottom:1px solid var(--line);align-items:center;min-height:76px;padding:0 32px;display:grid}.exam-header{grid-template-columns:1fr auto 1fr}.exam-header .submit-button,.practice-header .secondary-button{justify-self:end}.practice-title{flex-direction:column;align-items:center;line-height:1.35;display:flex}.practice-title strong{color:var(--navy-900);font-size:17px}.practice-title span{color:var(--muted);font-size:12px}.timer-block{color:var(--muted);align-items:baseline;gap:12px;display:flex}.timer-block strong{color:var(--navy-800);font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:36px}.timer-block strong.timer-warning{color:var(--red-500)}.exam-status{border-bottom:1px solid var(--line);background:#fbfcfe;justify-content:space-between;align-items:center;gap:28px;min-height:66px;padding:0 32px;display:flex}.status-items{align-items:center;gap:0;display:flex}.status-items>span{border-right:1px solid var(--line-strong);color:var(--muted);padding:0 22px}.status-items>span:first-child{padding-left:0}.status-items>span:last-child{border-right:0}.status-items strong{color:var(--text)}.progress-meter{width:300px;color:var(--muted);grid-template-columns:auto 1fr auto;align-items:center;gap:12px;display:grid}.progress-meter>div{background:#e4e9ef;border-radius:99px;height:5px;overflow:hidden}.progress-meter i{border-radius:inherit;background:var(--navy-800);height:100%;display:block}.exam-layout{grid-template-columns:minmax(0,1fr) 420px;height:calc(100vh - 198px);min-height:520px;display:grid}.question-workspace{border-right:1px solid var(--line);flex-direction:column;min-width:0;display:flex;overflow:hidden}.question-scroll{flex:1;min-height:0;padding:42px 50px 24px;overflow-y:auto}.question-topline{align-items:center;gap:12px;display:flex}.question-number{align-items:baseline;gap:8px;margin-right:16px;display:flex}.question-number strong{color:var(--navy-800);font-size:38px;line-height:1}.question-number span{color:var(--muted)}.type-label,.source-label{border-radius:4px;padding:4px 11px;font-size:14px}.type-label{background:var(--blue-100);color:var(--blue-700)}.source-label{border:1px solid var(--line);color:var(--muted)}.mark-button{border:1px solid var(--line-strong);background:var(--white);color:var(--muted);margin-left:auto;padding:7px 16px}.mark-button.marked{border-color:var(--orange-500);color:#b95508}.question-stem{max-width:920px;color:var(--navy-950);margin:40px 0 26px;font-size:22px;font-weight:650;line-height:1.55}.question-hint{color:var(--orange-500);margin:-14px 0 20px;font-size:14px}.option-list{gap:14px;max-width:980px;display:grid}.option-row{border:1px solid var(--line);background:var(--white);cursor:pointer;border-radius:5px;grid-template-columns:24px 30px 1fr;align-items:center;gap:16px;min-height:74px;padding:16px 22px;transition:border-color .16s,background .16s;display:grid}.option-row:hover{border-color:#9eb7d7}.option-row.selected{border-color:var(--blue-700);background:#f7faff}.option-row:has(input:disabled){cursor:default}.option-row.correct-answer{border-color:var(--teal-600);background:var(--teal-100)}.option-row.wrong-answer{border-color:var(--red-500);background:#fff2f3}.option-row.correct-answer .option-key{color:#007966}.option-row.wrong-answer .option-key{color:var(--red-500)}.option-row input{width:19px;height:19px;accent-color:var(--blue-700);margin:0}.option-key{color:var(--navy-900);font-weight:700}.practice-layout{height:calc(100vh - 198px);min-height:560px}.practice-layout .question-workspace{border-right:0;height:100%}.practice-layout .question-scroll{width:min(1100px,100%);margin:0 auto}.practice-wrong-tag{color:var(--red-500);background:#fff0f1;border-radius:4px;padding:4px 11px;font-size:14px;font-weight:700}.answer-required{color:var(--red-500);margin:18px 0 0;font-weight:650}.practice-feedback{border:1px solid #f0b3b7;border-left:4px solid var(--red-500);background:#fff8f8;border-radius:5px;max-width:980px;margin-top:24px;padding:20px 22px}.practice-feedback>div{justify-content:space-between;align-items:center;gap:20px;margin-bottom:10px;display:flex}.practice-feedback>div strong{color:#b62f38;font-size:17px}.practice-feedback>div span{color:var(--muted);font-size:13px}.practice-feedback p{color:#4f3a3d;margin:8px 0 0}.practice-feedback p b{color:var(--navy-900);margin-right:6px}.practice-summary-shell{background:var(--surface);place-items:center;min-height:100vh;padding:32px;display:grid}.practice-summary{border:1px solid var(--line);background:var(--white);width:min(680px,100%);box-shadow:var(--shadow);text-align:center;border-radius:8px;padding:48px}.practice-summary .success-mark{margin:32px auto 18px}.practice-summary h1{color:var(--navy-950);margin:0;font-size:34px}.practice-summary>p:not(.brand){color:var(--muted);margin:8px 0 0}.practice-summary-metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:34px 0;display:grid}.practice-summary-metrics>div{border-right:1px solid var(--line);flex-direction:column;justify-content:center;min-height:110px;display:flex}.practice-summary-metrics>div:last-child{border-right:0}.practice-summary-metrics strong{color:var(--navy-900);font-size:34px}.practice-summary-metrics span{color:var(--muted);font-size:13px}.practice-summary-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.question-actions{border-top:1px solid var(--line);background:var(--white);flex:none;justify-content:space-between;padding:16px 50px;display:flex}.answer-sheet{background:#fcfdff;flex-direction:column;min-width:0;padding:28px 26px 0;display:flex;overflow-y:auto}.answer-sheet-title{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.answer-sheet-title h2{margin:0;font-size:20px}.answer-sheet-title span{color:var(--muted)}.answer-group{margin-bottom:22px}.answer-group h3{color:var(--text);margin:0 0 12px;font-size:15px}.answer-grid{grid-template-columns:repeat(10,1fr);gap:7px;display:grid}.answer-grid button{border:1px solid var(--line);background:var(--white);color:#3c4858;cursor:pointer;border-radius:4px;width:31px;height:31px;padding:0;font-size:12px;position:relative}.answer-grid button.answered{border-color:var(--teal-600);background:var(--teal-600);color:var(--white)}.answer-grid button.current{border:2px solid var(--blue-700);background:var(--white);color:var(--blue-700)}.answer-grid button.flagged:after{border-top:9px solid var(--orange-500);content:"";border-left:9px solid #0000;width:0;height:0;position:absolute;top:-1px;right:-1px}.answer-legend{z-index:2;border-top:1px solid var(--line);background:var(--white);color:var(--muted);justify-content:space-between;gap:10px;margin:auto -26px 0;padding:18px 24px;font-size:13px;display:flex;position:sticky;bottom:0}.answer-legend span{align-items:center;gap:6px;display:flex}.answer-legend i{border:1px solid var(--line-strong);background:var(--white);border-radius:3px;width:18px;height:18px;display:inline-block}.answer-legend .legend-answered{border-color:var(--teal-600);background:var(--teal-600)}.answer-legend .legend-current{border:2px solid var(--blue-700)}.answer-legend .legend-flagged{border-color:var(--orange-500);background:var(--orange-500)}.exam-footer{border-top:1px solid var(--line);min-height:56px;color:var(--muted);justify-content:space-between;align-items:center;padding:0 32px;font-size:13px;display:flex}.autosave-status{align-items:center;gap:9px;display:flex}.autosave-status i{background:var(--teal-600);border-radius:50%;width:9px;height:9px}.shortcut-hint{color:var(--muted);text-align:right}.shortcut-hint kbd{border:1px solid var(--line-strong);min-width:24px;color:var(--navy-800);text-align:center;background:#f8fafc;border-bottom-width:2px;border-radius:4px;padding:2px 6px;font-family:inherit;font-size:12px;line-height:1.3;display:inline-block}.modal-backdrop{z-index:20;background:#05162f6b;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.submit-modal{border:1px solid var(--line);background:var(--white);width:min(440px,100%);box-shadow:var(--shadow);border-radius:7px;padding:32px}.submit-modal h2{margin:0 0 10px;font-size:24px}.submit-modal p{color:var(--muted);margin:0}.modal-actions{justify-content:flex-end;gap:12px;margin-top:28px;display:flex}.result-header{grid-template-columns:1fr auto}.result-summary{border-bottom:1px solid var(--line);grid-template-columns:390px 1fr;align-items:center;gap:40px;padding:32px 42px;display:grid}.success-copy{align-items:flex-start;gap:18px;display:flex}.success-mark{border:3px solid var(--teal-600);width:50px;height:50px;color:var(--teal-600);border-radius:50%;flex:none;place-items:center;font-size:26px;display:grid}.success-copy h1{color:var(--navy-950);margin:0;font-size:28px}.success-copy p,.success-copy time{color:var(--muted);margin:2px 0 0}.success-copy time{font-size:13px;display:block}.result-metrics{grid-template-columns:repeat(5,1fr);display:grid}.result-metrics>div{border-left:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;min-height:94px;display:flex}.result-metrics strong{color:var(--navy-950);font-variant-numeric:tabular-nums;font-size:34px}.result-metrics span{color:var(--muted);font-size:13px}.result-metrics .metric-error strong{color:var(--red-500)}.result-metrics .metric-time strong{color:var(--blue-700);font-size:26px}.accuracy-rail{border-bottom:1px solid var(--line);grid-template-columns:170px repeat(3,1fr);align-items:center;min-height:84px;padding:0 42px;display:grid}.accuracy-rail>div{border-left:1px solid var(--line);color:var(--muted);justify-content:space-between;padding:0 34px;display:flex}.accuracy-rail b{color:var(--teal-600)}.review-layout{grid-template-columns:minmax(0,1fr) 420px;min-height:calc(100vh - 245px);display:grid}.review-main{border-right:1px solid var(--line);min-width:0}.review-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:62px;padding:0 28px;display:flex}.review-toolbar>div{align-self:stretch;gap:26px;display:flex}.review-toolbar button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:3px solid #0000}.review-toolbar button.active{border-color:var(--blue-700);color:var(--blue-700);font-weight:700}.review-toolbar>span{color:var(--muted)}.review-content{grid-template-columns:190px minmax(0,1fr);min-height:640px;display:grid}.review-list{border-right:1px solid var(--line);background:#fbfcfe;max-height:720px;overflow:auto}.review-list button{border:0;border-bottom:1px solid var(--line);width:100%;min-height:52px;color:var(--muted);text-align:left;cursor:pointer;background:0 0;grid-template-columns:28px 1fr 20px;align-items:center;padding:0 15px;display:grid}.review-list button.active{border-left:3px solid var(--blue-700);background:var(--blue-100);color:var(--navy-900)}.review-ok{color:var(--teal-600)}.review-bad{color:var(--red-500)}.question-review{padding:38px 42px 56px}.review-question-heading{color:var(--blue-700);gap:12px;font-weight:650;display:flex}.review-question-heading span:last-child{color:var(--muted);font-weight:400}.question-review h2{color:var(--navy-950);margin:18px 0 26px;font-size:21px;line-height:1.55}.review-options{gap:10px;display:grid}.review-options p{margin:0}.review-options strong{width:26px;display:inline-block}.answer-comparison{border-top:1px solid var(--line);margin-top:30px;padding-top:22px}.answer-comparison p{margin:8px 0}.answer-correct{color:var(--teal-600);font-weight:750}.answer-wrong{color:var(--red-500);font-weight:750}.official-note{border-left:3px solid var(--blue-700);color:var(--muted);background:#f5f8fc;gap:18px;margin-top:28px;padding:16px 18px;display:flex}.official-note strong{color:var(--navy-900);flex:none}.empty-review{min-height:520px;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;display:flex}.empty-review strong{color:var(--navy-900);font-size:19px}.study-panel{background:#fcfdff;padding:30px 28px}.study-panel h2{margin:0;font-size:21px}.study-panel>p{color:var(--muted);margin:4px 0 26px}.weakness-list{gap:24px;display:grid}.weakness-list>div{grid-template-columns:1fr auto;gap:6px 18px;display:grid}.weakness-list strong{color:var(--muted);font-weight:500}.weakness-list i{background:#e7ebf0;border-radius:99px;grid-column:1/-1;height:5px;overflow:hidden}.weakness-list b{background:var(--blue-700);height:100%;display:block}.study-note{border:1px solid var(--line);background:var(--white);flex-direction:column;margin:30px 0 24px;padding:16px;display:flex}.study-note span{color:var(--muted)}.full-button{width:100%;margin-top:10px}.practical-header{grid-template-columns:1fr auto 1fr}.practical-header>span{color:var(--muted);text-align:center}.practical-header>:last-child{justify-self:end}.practical-notice{border-bottom:1px solid var(--line);color:#735b43;background:#fff9f2;align-items:center;gap:18px;min-height:54px;padding:0 32px;display:flex}.task-tabs{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);display:grid}.task-tabs button{border:0;border-right:1px solid var(--line);background:var(--white);min-height:76px;color:var(--muted);cursor:pointer;border-bottom:3px solid #0000;justify-content:center;align-items:center;gap:12px;display:flex}.task-tabs button:last-child{border-right:0}.task-tabs button.active{border-bottom-color:var(--blue-700);color:var(--navy-900)}.task-tabs strong{color:var(--blue-700)}.task-workspace{grid-template-columns:340px minmax(0,1fr);min-height:calc(100vh - 260px);display:grid}.task-instructions{border-right:1px solid var(--line);background:#fbfcfe;padding:36px 30px}.task-code{color:var(--blue-700);font-weight:750}.task-instructions h1{color:var(--navy-950);margin:8px 0 16px;font-size:25px}.task-instructions p{color:var(--muted);margin:0}.task-instructions h2{margin:30px 0 10px;font-size:16px}.task-instructions ol,.task-instructions ul{color:var(--muted);margin:0;padding-left:20px}.expected-file{border:1px solid var(--line);background:var(--white);flex-direction:column;margin-top:28px;padding:14px 16px;display:flex}.expected-file span{color:var(--muted);font-size:13px}.expected-file code{color:var(--navy-900);word-break:break-all;font-size:13px}.task-main{min-width:0;padding:36px 42px 56px}.parameter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:900px;display:grid}.parameter-grid label{gap:8px;display:grid}.parameter-grid label span{color:var(--muted);font-size:13px}.parameter-grid select,.parameter-grid input,.decision-row select,.annotation-row select{border:1px solid var(--line-strong);background:var(--white);min-height:44px;color:var(--text);border-radius:4px;padding:0 12px}.code-panel{color:#dce9f9;white-space:pre-wrap;background:#0d203b;border:1px solid #223854;border-radius:5px;max-width:900px;margin:24px 0;padding:24px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:14px;line-height:1.75;overflow-x:auto}.run-row{align-items:center;gap:18px;display:flex}.run-success{color:var(--teal-600);font-weight:650}.run-error{color:var(--red-500);font-weight:650}.data-table-wrap{border:1px solid var(--line);max-width:900px;margin-top:26px;overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;padding:12px 14px}.data-table th{background:var(--surface);color:var(--muted);font-size:13px}.data-table tr:last-child td{border-bottom:0}.table-empty{color:var(--muted);text-align:center;margin:0;padding:26px}.decision-table{border-top:1px solid var(--line-strong);max-width:960px}.decision-head,.decision-row{grid-template-columns:minmax(0,1fr) 150px;align-items:center;gap:24px;display:grid}.decision-head{min-height:48px;color:var(--muted);font-size:13px}.decision-row{border-top:1px solid var(--line);min-height:84px}.decision-row>div{flex-direction:column;display:flex}.decision-row span{color:var(--muted);font-size:13px}.annotation-list{border-top:1px solid var(--line-strong);max-width:960px}.annotation-row{border-bottom:1px solid var(--line);grid-template-columns:42px minmax(0,1fr) 170px;align-items:center;gap:20px;min-height:80px;display:grid}.annotation-index{color:var(--blue-700);font-weight:750}.annotation-row p{margin:0}.practical-footer{border-top:1px solid var(--line);min-height:56px;color:var(--muted);justify-content:space-between;align-items:center;padding:0 32px;font-size:13px;display:flex}.practical-result{width:min(920px,100% - 48px);margin:0 auto;padding:70px 0}.practical-score{border-bottom:1px solid var(--line);justify-content:center;align-items:baseline;gap:10px;padding-bottom:40px;display:flex}.practical-score span{color:var(--muted)}.practical-score strong{color:var(--blue-700);font-size:72px;line-height:1}.practical-score small{color:var(--muted);font-size:18px}.practical-breakdown{border-bottom:1px solid var(--line);grid-template-columns:repeat(4,1fr);display:grid}.practical-breakdown>div{border-right:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;min-height:120px;display:flex}.practical-breakdown>div:last-child{border-right:0}.practical-breakdown span{color:var(--muted)}.practical-breakdown strong{color:var(--navy-900);font-size:24px}.practical-feedback{padding:36px 0 20px}.practical-feedback h1{margin:0;font-size:24px}.practical-feedback ul{color:var(--muted);padding-left:20px}.result-actions{gap:12px;display:flex}@media (width<=1100px){.exam-layout{grid-template-columns:minmax(0,1fr) 340px}.answer-grid{grid-template-columns:repeat(8,1fr)}.answer-grid button{width:30px}.status-items>span{padding:0 10px}.result-summary{grid-template-columns:1fr}.review-layout{grid-template-columns:minmax(0,1fr) 340px}}@media (width<=820px){.home-shell{width:min(100% - 30px,680px)}.home-header{flex-direction:column;align-items:flex-start;min-height:auto;padding:38px 0}.home-header h1{margin-top:24px;font-size:42px}.rules-rail{grid-template-columns:1fr}.rules-rail>div,.rules-rail>div:first-child{border-right:0;border-bottom:1px solid var(--line);min-height:84px;padding:15px 0}.exam-row{grid-template-columns:40px 1fr auto;gap:12px;padding:18px 0}.row-meta{display:none}.exam-row .secondary-button{grid-column:2/-1;width:max-content}.section-heading,.source-note{flex-direction:column;align-items:flex-start}.practice-export-tools{justify-items:start}.bank-counts{flex-wrap:wrap}.history-row{grid-template-columns:1fr auto;padding:14px 0}.history-row span:nth-child(3),.history-row time{grid-column:1/-1}.wrong-stat-row{grid-template-columns:1fr;gap:8px}.exam-header,.practical-header{grid-template-columns:1fr auto;gap:16px;padding:14px 18px}.practice-header .practice-title{grid-area:2/1/auto/-1}.timer-block{grid-area:2/1/auto/-1;justify-content:center}.exam-status{flex-direction:column;align-items:stretch;padding:12px 18px}.status-items{grid-template-columns:repeat(2,1fr);gap:4px 12px;display:grid}.status-items>span{border:0;padding:0}.progress-meter{width:100%}.exam-layout,.practice-layout,.review-layout,.task-workspace{grid-template-columns:1fr;height:auto}.question-workspace{border-right:0;min-height:680px;overflow:visible}.question-scroll{padding:28px 18px 18px;overflow:visible}.question-actions{padding:16px 18px}.question-topline{flex-wrap:wrap}.practice-feedback>div{flex-direction:column;align-items:flex-start;gap:2px}.mark-button{margin-left:0}.answer-sheet{border-top:1px solid var(--line);padding:24px 18px 0;overflow:visible}.answer-grid{grid-template-columns:repeat(10,1fr)}.answer-legend{margin-left:-18px;margin-right:-18px;position:static}.exam-footer,.practical-footer{flex-direction:column;align-items:flex-start;gap:4px;padding:12px 18px}.result-summary,.accuracy-rail{padding-left:18px;padding-right:18px}.result-metrics{grid-template-columns:repeat(2,1fr)}.result-metrics>div{border-bottom:1px solid var(--line)}.accuracy-rail{grid-template-columns:1fr;gap:10px;padding-top:18px;padding-bottom:18px}.accuracy-rail>div{border-left:0;padding:0}.review-main{border-right:0}.review-content{grid-template-columns:1fr}.review-list{border-right:0;border-bottom:1px solid var(--line);max-height:none;display:flex;overflow-x:auto}.review-list button{border-right:1px solid var(--line);min-width:120px}.study-panel{border-top:1px solid var(--line)}.practical-header>span{grid-area:2/1/auto/-1}.practical-notice{flex-direction:column;align-items:flex-start;gap:2px;padding:12px 18px}.task-tabs button{flex-direction:column;gap:0;min-height:70px}.task-instructions{border-right:0;border-bottom:1px solid var(--line)}.task-main{padding:28px 18px 48px}.parameter-grid{grid-template-columns:1fr}.decision-head,.decision-row{grid-template-columns:1fr;gap:8px;padding:12px 0}.decision-head span:last-child{display:none}.annotation-row{grid-template-columns:32px 1fr;padding:14px 0}.annotation-row select{grid-column:2}.practical-breakdown{grid-template-columns:repeat(2,1fr)}.practice-summary{padding:36px 24px}}@media (width<=520px){.home-header h1{font-size:36px}.content-section{padding-top:48px}.exam-header .brand,.practical-header .brand{font-size:17px}.timer-block strong{font-size:30px}.option-row{grid-template-columns:22px 22px 1fr;gap:10px;min-height:68px;padding:14px}.practice-summary-shell{padding:18px}.practice-summary-metrics{grid-template-columns:1fr}.practice-summary-metrics>div{border-right:0;border-bottom:1px solid var(--line);min-height:82px}.practice-summary-metrics>div:last-child{border-bottom:0}.answer-grid{grid-template-columns:repeat(8,1fr)}.question-review{padding:26px 18px 44px}.review-toolbar{flex-direction:column;align-items:flex-start;padding:10px 18px}.review-toolbar>div{gap:12px;width:100%;overflow-x:auto}.review-toolbar button{min-width:max-content;min-height:42px}.result-metrics strong{font-size:29px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important}}.practice-filters{background:var(--blue-100,#eaf2ff);border-radius:10px;flex-wrap:wrap;align-items:center;gap:14px 28px;max-width:1180px;margin:0 auto;padding:12px 24px;display:flex}.filter-group{align-items:center;gap:10px;min-width:0;display:flex}.filter-label{color:var(--navy-900);white-space:nowrap;font-size:13px;font-weight:700}.filter-chips{flex-wrap:wrap;gap:6px;display:flex}.filter-chips button,.practice-filters select{background:var(--v3-white);color:var(--navy-900);cursor:pointer;border:1px solid #0b3b7840;border-radius:999px;padding:5px 11px;font-size:13px;transition:background .15s,color .15s}.filter-chips button.active{background:var(--blue-700);border-color:var(--blue-700);color:var(--v3-white);font-weight:700}.practice-mastered-tag{background:var(--teal-100,#e4f8f3);color:var(--teal-600);border-radius:4px;padding:4px 11px;font-size:14px;font-weight:700}.domain-rail{border-bottom:1px solid var(--line);background:#fbfdff;grid-template-columns:150px repeat(6,minmax(0,1fr));align-items:stretch;gap:0;padding:14px 42px;display:grid}.domain-rail>strong{color:var(--navy-900);align-self:center;font-size:15px}.domain-cell{border-left:1px solid var(--line);flex-direction:column;gap:5px;padding:8px 14px;display:flex}.domain-cell .domain-name{color:var(--muted);white-space:nowrap;align-items:center;gap:6px;font-size:13px;display:flex}.domain-cell .domain-name i{color:var(--blue-700);font-style:normal;font-weight:800}.domain-cell>b{color:var(--navy-900);font-size:15px}.domain-bar{background:#0b3b781f;border-radius:999px;height:6px;overflow:hidden}.domain-bar b{border-radius:inherit;background:linear-gradient(90deg, var(--blue-700), var(--teal-600));height:100%;display:block}.domain-cell em{color:var(--muted);font-size:12px;font-style:normal}.level-badge{border-radius:999px;margin-top:2px;padding:3px 12px;font-size:13px;font-weight:800;display:inline-block}.level-great{background:var(--teal-100,#e4f8f3);color:var(--teal-600)}.level-pass{background:var(--blue-100,#eaf2ff);color:var(--blue-700)}.level-fail{color:var(--red-500);background:#fff0f1}.metric-fullscore{color:var(--muted);margin-left:2px;font-size:14px;font-weight:600}@media (width<=1100px){.domain-rail{grid-template-columns:1fr;gap:10px}.domain-cell{border-left:none;border-top:1px solid var(--line)}}.v3-shell{max-width:1120px;margin:0 auto;padding:0 24px 64px}.v3-topbar{z-index:40;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--v3-line);background:#ffffffdb;position:sticky;top:0}.v3-topbar-inner{justify-content:space-between;align-items:center;gap:16px;max-width:1120px;margin:0 auto;padding:14px 24px;display:flex}.v3-wordmark{color:var(--v3-navy-950);align-items:baseline;gap:10px;display:flex}.v3-wordmark b{letter-spacing:-.02em;font-size:22px;font-weight:800}.v3-wordmark span{color:var(--v3-muted);font-size:13px}.v3-hero{grid-template-columns:1.1fr .9fr;align-items:center;gap:48px;padding:72px 0 56px;display:grid}.v3-eyebrow{letter-spacing:.14em;color:var(--v3-blue-700);background:var(--v3-blue-100);border-radius:999px;align-items:center;gap:8px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.v3-hero-title{letter-spacing:-.03em;color:var(--v3-navy-950);margin:20px 0 0;font-size:clamp(40px,6vw,62px);font-weight:800;line-height:1.08}.v3-hero-title em{color:var(--v3-blue-700);font-style:normal}.v3-hero-sub{color:var(--v3-text-2);max-width:30em;margin:18px 0 0;font-size:17px;line-height:1.7}.v3-cta-row{flex-wrap:wrap;gap:14px;margin-top:32px;display:flex}.v3-btn{cursor:pointer;transition:transform .15s var(--v3-ease), box-shadow .15s var(--v3-ease), background .15s var(--v3-ease);border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:13px 26px;font-size:15px;font-weight:600;display:inline-flex}.v3-btn-primary{background:var(--v3-blue-700);color:var(--v3-white);box-shadow:var(--v3-shadow-rest)}.v3-btn-primary:hover{background:var(--v3-blue-600);box-shadow:var(--v3-shadow-lift);transform:translateY(-1px)}.v3-btn-ghost{background:var(--v3-white);color:var(--v3-navy-900);border-color:var(--v3-line-strong)}.v3-btn-ghost:hover{border-color:var(--v3-blue-700);color:var(--v3-blue-700)}.v3-btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.v3-hero-art{justify-content:center;display:flex;position:relative}.v3-art-card{background:var(--v3-white);border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);box-shadow:var(--v3-shadow-lift);padding:22px 24px;animation:6s ease-in-out infinite v3-float}@keyframes v3-float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.v3-strip{grid-template-columns:repeat(3,1fr);gap:14px;margin:8px 0 56px;display:grid}.v3-strip-item{background:var(--v3-surface);border:1px solid var(--v3-line);border-radius:12px;align-items:baseline;gap:10px;padding:14px 18px;display:flex}.v3-strip-item b{color:var(--v3-navy-900);font-size:17px}.v3-strip-item span{color:var(--v3-muted);font-size:13px}.v3-section{margin:48px 0}.v3-section-head{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:18px;display:flex}.v3-section-head h2{letter-spacing:-.01em;color:var(--v3-navy-950);margin:0;font-size:22px;font-weight:700}.v3-section-head p{color:var(--v3-muted);margin:6px 0 0;font-size:14px}.v3-card{background:var(--v3-white);border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);transition:transform .18s var(--v3-ease), box-shadow .18s var(--v3-ease), border-color .18s var(--v3-ease);align-items:center;gap:20px;padding:22px 24px;display:flex}.v3-card+.v3-card{margin-top:14px}.v3-card:hover{box-shadow:var(--v3-shadow-lift);border-color:var(--v3-line-strong);transform:translateY(-2px)}.v3-card-main{flex:1;min-width:0}.v3-card-main h3{color:var(--v3-navy-950);margin:0;font-size:17px;font-weight:700}.v3-card-main p{color:var(--v3-muted);margin:6px 0 0;font-size:13.5px}.v3-badge{background:var(--v3-surface);color:var(--v3-muted);border:1px solid var(--v3-line);border-radius:999px;align-items:center;gap:6px;padding:4px 12px;font-size:12.5px;font-weight:600;display:inline-flex}.v3-badge-live{background:var(--v3-blue-100);color:var(--v3-blue-700);border-color:#0000}.v3-badge-live:before{content:"";background:var(--v3-blue-700);border-radius:50%;width:7px;height:7px;animation:1.6s ease-in-out infinite v3-pulse}@keyframes v3-pulse{0%,to{opacity:1}50%{opacity:.35}}.v3-badge-done{color:var(--v3-teal-600);background:#e4f8f3;border-color:#0000}.v3-practice-card{background:linear-gradient(135deg, var(--v3-navy-900) 0%, var(--v3-navy-800) 100%);color:var(--v3-white);transition:transform .18s var(--v3-ease), box-shadow .18s var(--v3-ease);border-radius:20px;justify-content:space-between;align-items:center;gap:24px;padding:34px 36px;display:flex;position:relative;overflow:hidden}.v3-practice-card:hover{box-shadow:var(--v3-shadow-lift);transform:translateY(-2px)}.v3-practice-card h3{margin:0 0 8px;font-size:21px;font-weight:700}.v3-practice-card p{color:#ffffffb8;margin:0;font-size:14px;line-height:1.7}.v3-practice-cta{background:var(--v3-white);color:var(--v3-navy-900);border:none;flex-shrink:0}.v3-practice-cta:hover{background:var(--v3-blue-100)}.v3-rows{border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);background:var(--v3-white);overflow:hidden}.v3-row{border:none;border-bottom:1px solid var(--v3-line);cursor:pointer;text-align:left;width:100%;font:inherit;color:var(--v3-text);transition:background .15s var(--v3-ease);background:0 0;grid-template-columns:1fr auto auto auto;align-items:center;gap:16px;padding:15px 22px;display:grid}.v3-row:last-child{border-bottom:none}.v3-row:hover{background:var(--v3-blue-100)}.v3-row b{color:var(--v3-navy-900);font-size:16px}.v3-row time{color:var(--v3-muted);font-size:13px}.v3-empty{border:1.5px dashed var(--v3-line-strong);border-radius:var(--v3-radius-card);text-align:center;color:var(--v3-muted);padding:36px}.v3-empty strong{color:var(--v3-text-2);margin-bottom:6px;font-size:15px;display:block}.v3-form{flex-direction:column;gap:16px;max-width:420px;display:flex}.v3-form label{color:var(--v3-text-2);flex-direction:column;gap:7px;font-size:13.5px;font-weight:600;display:flex}.v3-form input{border:1px solid var(--v3-line-strong);font:inherit;border-radius:10px;padding:12px 14px;transition:border-color .15s,box-shadow .15s}.v3-form input:focus{border-color:var(--v3-blue-700);outline:none;box-shadow:0 0 0 3px #0b57d029}.v3-form-error{color:var(--v3-red-500);margin:0;font-size:13.5px}@media (width<=900px){.v3-hero{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}.v3-hero-art{display:none}.v3-strip{grid-template-columns:1fr}.v3-practice-card{flex-direction:column;align-items:flex-start}.v3-row{grid-template-columns:1fr auto}.v3-row time{display:none}}.v3-topbar-actions{align-items:center;gap:10px;display:flex}.v3-btn-sm{padding:8px 16px;font-size:13.5px}.v3-footer{color:var(--v3-muted);margin-top:64px;font-size:13px}.v3-art-deco{z-index:-1;pointer-events:none;border-radius:24px;position:absolute;inset:0;overflow:hidden}.v3-theme{--v3-radius-ctl:10px;background:radial-gradient(1200px 400px at 85% -8%, #0b57d00d, transparent 60%), var(--v3-white);color:var(--v3-text);min-height:100vh;font-size:15px}.v3-theme .exam-header{z-index:40;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--v3-line);background:#ffffffe0;justify-content:space-between;align-items:center;gap:16px;padding:14px 28px;display:flex;position:sticky;top:0}.v3-theme .brand-button{cursor:pointer;letter-spacing:-.01em;color:var(--v3-navy-950);background:0 0;border:none;padding:0;font-size:17px;font-weight:800}.v3-theme .brand-button:hover{color:var(--v3-blue-700)}.v3-theme .timer-block{background:var(--v3-surface);border:1px solid var(--v3-line);border-radius:12px;align-items:baseline;gap:10px;padding:8px 18px;display:flex}.v3-theme .timer-block span{color:var(--v3-muted);font-size:12.5px}.v3-theme .timer-block strong{color:var(--v3-navy-900);font-variant-numeric:tabular-nums;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:21px}.v3-theme .timer-warning{color:var(--v3-red-500)!important}.v3-theme .submit-button{background:var(--v3-blue-700);color:var(--v3-white);border-radius:var(--v3-radius-ctl);cursor:pointer;transition:background .15s var(--v3-ease), transform .15s var(--v3-ease);border:none;padding:10px 24px;font-weight:600}.v3-theme .submit-button:hover{background:var(--v3-blue-600);transform:translateY(-1px)}.v3-theme .exam-status{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;max-width:1240px;margin:0 auto;padding:18px 28px 0;display:flex}.v3-theme .status-items{color:var(--v3-muted);flex-wrap:wrap;gap:8px 22px;font-size:13.5px;display:flex}.v3-theme .status-items strong{color:var(--v3-navy-900)}.v3-theme .progress-meter{color:var(--v3-muted);align-items:center;gap:12px;min-width:240px;font-size:13px;display:flex}.v3-theme .progress-meter>div{background:var(--v3-blue-100);border-radius:999px;flex:1;height:8px;overflow:hidden}.v3-theme .progress-meter i{background:var(--v3-blue-700);height:100%;transition:width .3s var(--v3-ease);border-radius:999px;display:block}.v3-theme .exam-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:24px;max-width:1240px;margin:0 auto;padding:22px 28px 0;display:grid}.v3-theme .question-workspace,.v3-theme .answer-sheet{background:var(--v3-white);border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);box-shadow:var(--v3-shadow-rest)}.v3-theme .question-workspace{padding:26px 30px}.v3-theme .question-topline{align-items:center;gap:14px;margin-bottom:18px;display:flex}.v3-theme .question-number strong{color:var(--v3-navy-950);font-variant-numeric:tabular-nums;font-size:26px}.v3-theme .question-number span{color:var(--v3-muted);font-size:13px}.v3-theme .type-label{background:var(--v3-blue-100);color:var(--v3-blue-700);border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600}.v3-theme .source-label{color:var(--v3-muted);border:1px solid var(--v3-line);border-radius:999px;padding:4px 12px;font-size:12.5px}.v3-theme .mark-button{border:1px solid var(--v3-orange-500);color:var(--v3-orange-500);cursor:pointer;background:0 0;border-radius:999px;margin-left:auto;padding:4px 14px;font-size:12.5px;font-weight:600;transition:background .15s,color .15s}.v3-theme .mark-button:hover{background:#ff7a1a14}.v3-theme .mark-button.marked{background:var(--v3-orange-500);color:var(--v3-white)}.v3-theme .question-stem{color:var(--v3-navy-950);margin:0 0 22px;font-size:19px;font-weight:600;line-height:1.75}.v3-theme .question-hint{color:var(--v3-orange-500);font-size:13.5px}.v3-theme .option-list{flex-direction:column;gap:12px;display:flex}.v3-theme .option-row{border:1.5px solid var(--v3-line);cursor:pointer;transition:border-color .15s var(--v3-ease), background .15s var(--v3-ease);border-radius:12px;align-items:flex-start;gap:14px;padding:14px 18px;display:flex}.v3-theme .option-row:hover{border-color:var(--v3-blue-700);background:var(--v3-blue-100)}.v3-theme .option-row.selected{border-color:var(--v3-blue-700);background:var(--v3-blue-100);box-shadow:inset 3px 0 0 var(--v3-blue-700)}.v3-theme .option-row input{accent-color:var(--v3-blue-700);margin-top:3px}.v3-theme .option-key{background:var(--v3-surface);border:1px solid var(--v3-line);width:26px;height:26px;color:var(--v3-navy-900);border-radius:8px;flex-shrink:0;place-items:center;font-size:13px;font-weight:700;display:grid}.v3-theme .option-row.selected .option-key{background:var(--v3-blue-700);border-color:var(--v3-blue-700);color:var(--v3-white)}.v3-theme .question-actions{border-top:1px solid var(--v3-line);justify-content:space-between;margin-top:24px;padding-top:20px;display:flex}.v3-theme .secondary-button{background:var(--v3-white);border:1px solid var(--v3-line-strong);border-radius:var(--v3-radius-ctl);color:var(--v3-navy-900);cursor:pointer;padding:10px 22px;font-weight:600;transition:border-color .15s,color .15s}.v3-theme .secondary-button:hover:not(:disabled){border-color:var(--v3-blue-700);color:var(--v3-blue-700)}.v3-theme .primary-button{background:var(--v3-blue-700);border-radius:var(--v3-radius-ctl);color:var(--v3-white);cursor:pointer;border:none;padding:10px 22px;font-weight:600;transition:background .15s,transform .15s}.v3-theme .primary-button:hover:not(:disabled){background:var(--v3-blue-600);transform:translateY(-1px)}.v3-theme button:disabled{opacity:.45;cursor:not-allowed}.v3-theme .answer-sheet{padding:20px;position:sticky;top:86px}.v3-theme .answer-sheet-title{justify-content:space-between;align-items:baseline;margin-bottom:14px;display:flex}.v3-theme .answer-sheet-title h2{color:var(--v3-navy-950);margin:0;font-size:16px}.v3-theme .answer-sheet-title span{color:var(--v3-muted);font-variant-numeric:tabular-nums;font-size:13px}.v3-theme .answer-group h3{color:var(--v3-muted);margin:14px 0 8px;font-size:12.5px;font-weight:600}.v3-theme .answer-grid{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.v3-theme .answer-grid button{aspect-ratio:1;border:1px solid var(--v3-line);background:var(--v3-white);color:var(--v3-muted);cursor:pointer;transition:all .12s var(--v3-ease);border-radius:8px;font-size:12.5px;font-weight:600}.v3-theme .answer-grid button:hover{border-color:var(--v3-blue-700);color:var(--v3-blue-700)}.v3-theme .answer-grid button.answered{background:var(--v3-blue-700);border-color:var(--v3-blue-700);color:var(--v3-white)}.v3-theme .answer-grid button.current{outline:2.5px solid var(--v3-blue-700);outline-offset:1.5px}.v3-theme .answer-grid button.flagged{box-shadow:inset 0 0 0 1.5px var(--v3-orange-500);color:var(--v3-orange-500)}.v3-theme .answer-grid button.answered.flagged{color:#ffd9b8}.v3-theme .answer-legend{color:var(--v3-muted);flex-wrap:wrap;gap:10px 14px;margin-top:14px;font-size:12px;display:flex}.v3-theme .answer-legend span{align-items:center;gap:5px;display:inline-flex}.v3-theme .answer-legend i{border:1px solid var(--v3-line);background:var(--v3-white);border-radius:4px;width:12px;height:12px}.v3-theme .legend-answered{background:var(--v3-blue-700)!important;border-color:var(--v3-blue-700)!important}.v3-theme .legend-current{box-shadow:0 0 0 2px var(--v3-blue-700)!important}.v3-theme .legend-flagged{box-shadow:inset 0 0 0 1.5px var(--v3-orange-500)!important}.v3-theme .exam-footer{max-width:1240px;color:var(--v3-muted);justify-content:space-between;gap:16px;margin:18px auto 0;padding:14px 28px 26px;font-size:12.5px;display:flex}.v3-theme .autosave-status{align-items:center;gap:7px;display:inline-flex}.v3-theme .autosave-status i{background:var(--v3-teal-600);border-radius:50%;width:8px;height:8px}.v3-theme kbd{background:var(--v3-surface);border:1px solid var(--v3-line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-family:SFMono-Regular,Consolas,monospace;font-size:11.5px}.v3-theme .modal-backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:100;background:#071a3673;place-items:center;display:grid;position:fixed;inset:0}.v3-theme .submit-modal{background:var(--v3-white);border-radius:var(--v3-radius-card);box-shadow:var(--v3-shadow-lift);width:min(440px,100vw - 48px);padding:30px 34px}.v3-theme .submit-modal h2{color:var(--v3-navy-950);margin:0 0 10px}.v3-theme .submit-modal p{color:var(--v3-text-2);margin:0 0 22px;line-height:1.7}.v3-theme .modal-actions{justify-content:flex-end;gap:12px;display:flex}.v3-theme .result-shell{max-width:1080px;margin:0 auto;padding:0 24px 64px}.v3-theme .result-header{border-bottom:1px solid var(--v3-line);justify-content:space-between;align-items:center;margin-bottom:26px;padding:20px 0;display:flex}.v3-theme .result-header .brand{color:var(--v3-navy-950);font-weight:800}.v3-theme .text-button{color:var(--v3-blue-700);cursor:pointer;background:0 0;border:none;font-weight:600}.v3-theme .result-summary{background:linear-gradient(135deg, var(--v3-navy-900), var(--v3-navy-800));color:var(--v3-white);border-radius:20px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:28px;padding:34px 38px;display:flex}.v3-theme .success-copy{align-items:center;gap:18px;display:flex}.v3-theme .success-mark{background:var(--v3-teal-600);border-radius:50%;place-items:center;width:52px;height:52px;font-size:26px;font-weight:800;display:grid}.v3-theme .success-copy h1{margin:0 0 6px;font-size:24px}.v3-theme .success-copy p{color:#ffffffbf;margin:0;font-size:14px}.v3-theme .success-copy time{color:#ffffff8c;font-size:12.5px}.v3-theme .result-metrics{flex-wrap:wrap;gap:30px;display:flex}.v3-theme .result-metrics>div{color:#ffffffad;flex-direction:column;gap:3px;font-size:12.5px;display:flex}.v3-theme .result-metrics strong{font-variant-numeric:tabular-nums;font-size:30px;font-weight:800}.v3-theme .metric-fullscore{opacity:.6;font-size:15px;font-weight:600}.v3-theme .level-badge{border-radius:999px;width:fit-content;padding:3px 12px;font-size:12.5px;font-weight:700;display:inline-block}.v3-theme .level-great{background:var(--v3-teal-600);color:var(--v3-white)}.v3-theme .level-pass{background:var(--v3-blue-700);color:var(--v3-white)}.v3-theme .level-fail{background:var(--v3-red-500);color:var(--v3-white)}.v3-theme .accuracy-rail,.v3-theme .domain-rail{background:var(--v3-white);border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);margin:22px 0;padding:20px 24px}.v3-theme .accuracy-rail>strong,.v3-theme .domain-rail>strong{color:var(--v3-navy-950);margin-bottom:14px;font-size:14px;display:block}.v3-theme .accuracy-rail>div{color:var(--v3-text-2);justify-content:space-between;align-items:center;padding:6px 0;font-size:13.5px;display:flex}.v3-theme .accuracy-rail b{color:var(--v3-navy-900);font-variant-numeric:tabular-nums}.v3-theme .domain-rail{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.v3-theme .domain-cell{background:var(--v3-surface);border:1px solid var(--v3-line);border-radius:12px;grid-template-columns:1fr auto;align-items:center;gap:4px 10px;padding:14px 16px;display:grid}.v3-theme .domain-name{color:var(--v3-navy-950);grid-column:1/2;align-items:center;gap:8px;font-size:13.5px;font-weight:600;display:flex}.v3-theme .domain-name i{background:var(--v3-blue-700);width:22px;height:22px;color:var(--v3-white);border-radius:7px;place-items:center;font-size:12px;font-style:normal;font-weight:700;display:grid}.v3-theme .domain-cell>b{font-variant-numeric:tabular-nums;color:var(--v3-navy-900)}.v3-theme .domain-bar{background:var(--v3-blue-100);border-radius:999px;grid-column:1/3;height:6px;overflow:hidden}.v3-theme .domain-bar b{background:var(--v3-blue-700);height:100%;transition:width .4s var(--v3-ease);border-radius:999px;display:block}.v3-theme .domain-cell em{color:var(--v3-muted);grid-column:1/3;font-size:12px;font-style:normal}.v3-theme .review-layout{grid-template-columns:240px minmax(0,1fr) 280px;align-items:start;gap:20px;display:grid}.v3-theme .review-main,.v3-theme .study-panel{background:var(--v3-white);border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);padding:18px}.v3-theme .review-toolbar{justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;display:flex}.v3-theme .review-toolbar>div{flex-wrap:wrap;gap:7px;display:flex}.v3-theme .review-toolbar button{background:var(--v3-surface);border:1px solid var(--v3-line);cursor:pointer;color:var(--v3-text-2);border-radius:999px;padding:6px 14px;font-size:12.5px}.v3-theme .review-toolbar button.active{background:var(--v3-blue-700);border-color:var(--v3-blue-700);color:var(--v3-white)}.v3-theme .review-list{flex-wrap:wrap;gap:7px;max-height:300px;margin:0 0 16px;display:flex;overflow:auto}.v3-theme .review-list button{border:1px solid var(--v3-line);background:var(--v3-white);cursor:pointer;color:var(--v3-text-2);border-radius:8px;align-items:center;gap:7px;padding:6px 10px;font-size:12.5px;display:inline-flex}.v3-theme .review-list button.active{border-color:var(--v3-blue-700);background:var(--v3-blue-100)}.v3-theme .review-ok{color:var(--v3-teal-600);font-weight:700}.v3-theme .review-bad{color:var(--v3-red-500);font-weight:700}.v3-theme .question-review h2{color:var(--v3-navy-950);font-size:17px;line-height:1.7}.v3-theme .review-question-heading{color:var(--v3-muted);justify-content:space-between;gap:10px;margin-bottom:10px;font-size:12.5px;display:flex}.v3-theme .review-options p{color:var(--v3-text-2);margin:6px 0;font-size:14px}.v3-theme .answer-comparison{background:var(--v3-surface);border-radius:12px;flex-wrap:wrap;gap:8px 28px;margin:16px 0;padding:12px 16px;font-size:14px;display:flex}.v3-theme .answer-correct{color:var(--v3-teal-600);font-weight:700}.v3-theme .answer-wrong{color:var(--v3-red-500);font-weight:700}.v3-theme .official-note{background:var(--v3-blue-100);border-radius:12px;margin:12px 0;padding:14px 18px;font-size:14px;line-height:1.7}.v3-theme .official-note strong{color:var(--v3-blue-700);letter-spacing:.04em;margin-bottom:5px;font-size:12.5px;display:block}.v3-theme .study-panel h2{color:var(--v3-navy-950);margin:0 0 10px;font-size:16px}.v3-theme .study-panel p{color:var(--v3-muted);font-size:13.5px}.v3-theme .weakness-list>div{border-bottom:1px solid var(--v3-line);grid-template-columns:1fr auto;gap:4px 10px;padding:10px 0;font-size:13px;display:grid}.v3-theme .weakness-list span{color:var(--v3-text-2)}.v3-theme .weakness-list i{background:var(--v3-blue-100);border-radius:999px;grid-column:1/3;height:5px;overflow:hidden}.v3-theme .weakness-list i b{background:var(--v3-blue-700);border-radius:999px;height:100%;display:block}.v3-theme .study-note{color:var(--v3-muted);margin:16px 0;font-size:13px}.v3-theme .study-note strong{color:var(--v3-text-2);margin-bottom:4px;display:block}.v3-theme .full-button{width:100%;margin-top:10px}.v3-theme .empty-review{border:1.5px dashed var(--v3-line-strong);border-radius:var(--v3-radius-card);text-align:center;color:var(--v3-muted);padding:32px}.v3-theme .empty-review strong{color:var(--v3-text-2);margin-bottom:6px;display:block}.v3-theme .empty-review .v3-btn,.v3-theme .empty-review button{margin-top:14px}@media (width<=1000px){.v3-theme .exam-layout{grid-template-columns:1fr}.v3-theme .answer-sheet{position:static}.v3-theme .review-layout{grid-template-columns:1fr}.v3-theme .domain-rail{grid-template-columns:1fr 1fr}}.v3-theme .progress-meter i,.v3-theme .domain-bar b,.v3-theme .weakness-list i b{width:var(--meter,0%)}.v3-practice-head{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--v3-line);background:#ffffffe0;margin:0 -24px}.v3-section-first{margin-top:28px}.v3-chip{background:var(--v3-surface);border:1px solid var(--v3-line);cursor:pointer;color:var(--v3-text-2);transition:all .15s var(--v3-ease);border-radius:999px;padding:6px 14px;font-size:12.5px}.v3-chip:hover{border-color:var(--v3-blue-700);color:var(--v3-blue-700)}.v3-chip.active{background:var(--v3-blue-700);border-color:var(--v3-blue-700);color:#fff}.v3-theme .review-chip{background:var(--v3-surface);border:1px solid var(--v3-line);cursor:pointer;color:var(--v3-text-2);transition:all .15s var(--v3-ease);border-radius:999px;padding:6px 14px;font-size:12.5px}.v3-theme .review-chip:hover{border-color:var(--v3-blue-700);color:var(--v3-blue-700)}.v3-theme .review-chip.active{background:var(--v3-blue-700);border-color:var(--v3-blue-700);color:var(--v3-white)}.v3-chip-divider{background:var(--v3-line-strong);width:1px;height:22px;display:inline-block}.v3-kp-input{border:1px solid var(--v3-line-strong);font:inherit;border-radius:999px;width:150px;padding:6px 14px;font-size:12.5px}.v3-kp-input:focus{border-color:var(--v3-blue-700);outline:none;box-shadow:0 0 0 3px #0b57d029}.v3-row-actions{align-items:center;gap:10px;display:flex}.v3-row-static{cursor:default}.v3-hint{color:var(--v3-muted);margin-top:14px;font-size:12.5px}.v3-empty-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:16px;display:flex}.v3-theme .option-row.option-correct{border-color:var(--v3-teal-600);background:var(--v3-teal-100);box-shadow:inset 3px 0 0 var(--v3-teal-600)}.v3-theme .option-row.option-wrong{border-color:var(--v3-red-500);box-shadow:inset 3px 0 0 var(--v3-red-500);background:#e44d550f}.v3-theme .practice-feedback{border-radius:12px;margin:16px 0 0;padding:12px 18px;font-weight:600}.v3-theme .practice-feedback-ok{color:var(--v3-teal-600);background:#e4f8f3}.v3-theme .practice-feedback-bad{color:var(--v3-red-500);background:#e44d5514}.v3-theme .shortcut-hint kbd{background:var(--v3-surface);border:1px solid var(--v3-line);border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-family:SFMono-Regular,Consolas,monospace;font-size:11.5px}.v3-theme .v3-admin-table{border-collapse:separate;border-spacing:0;border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);background:#fff;width:100%;margin-top:16px;font-size:13.5px;overflow:hidden}.v3-theme .v3-admin-table th{text-align:left;background:var(--v3-surface);color:var(--v3-muted);border-bottom:1px solid var(--v3-line);white-space:nowrap;padding:11px 16px;font-size:12.5px;font-weight:600}.v3-theme .v3-admin-table td{border-bottom:1px solid var(--v3-line);color:var(--v3-text);vertical-align:middle;padding:12px 16px}.v3-theme .v3-admin-table tr:last-child td{border-bottom:none}.v3-theme .v3-admin-table tr:hover td{background:var(--v3-blue-100)}.v3-theme .v3-admin-table b{color:var(--v3-navy-900)}.v3-theme .v3-form textarea{border:1px solid var(--v3-line-strong);font:inherit;resize:vertical;border-radius:10px;padding:12px 14px;font-family:SFMono-Regular,Consolas,monospace;font-size:13px;line-height:1.7;transition:border-color .15s,box-shadow .15s}.v3-theme .v3-form textarea:focus{border-color:var(--v3-blue-700);outline:none;box-shadow:0 0 0 3px #0b57d029}.v3-theme .v3-form select{border:1px solid var(--v3-line-strong);font:inherit;background:#fff;border-radius:10px;padding:11px 14px}.v3-theme .v3-admin-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;display:grid}.v3-theme .v3-admin-download{background:var(--v3-blue-700);color:#fff;border-radius:var(--v3-radius-ctl,10px);transition:background .15s var(--v3-ease), transform .15s var(--v3-ease);align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.v3-theme .v3-admin-download:hover{background:var(--v3-blue-600);transform:translateY(-1px)}.v3-theme .v3-secret-code{background:var(--v3-surface);border:1px dashed var(--v3-line-strong);-webkit-user-select:all;user-select:all;border-radius:8px;padding:2px 8px;font-family:SFMono-Regular,Consolas,monospace}.v3-theme .v3-muted-cell{color:var(--v3-muted)}.v3-empty-left{text-align:left}.v3-empty-actions-start{align-items:flex-start}.v3-note-meta{word-break:break-all;opacity:.75;margin:4px 0;font-size:12.5px}.v3-form-mt{margin-top:18px}.v3-btn-md{padding:12px 24px}.v3-strip-first{margin-top:28px}.v3-stat-card{border:1px solid var(--v3-line);border-radius:var(--v3-radius-card);box-shadow:var(--v3-shadow-rest);background:#fff;padding:20px 22px}.v3-stat-radar{place-items:center;display:grid}.v3-hero-art{position:relative}.v3-hero-art .v3-art-card{z-index:1;position:relative}.v3-hero-canvas{z-index:0;pointer-events:none;position:absolute;inset:-50px -70px}@media (prefers-reduced-motion:reduce){.v3-art-card{animation:none}}@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-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}