.question-interactive-formula-blank[data-v-d7990892]{vertical-align:baseline;align-items:center;gap:4px;max-width:100%;margin:0 6px;display:inline-flex}.question-interactive-formula-blank__input[data-v-d7990892],.question-interactive-formula-blank__display[data-v-d7990892]{vertical-align:baseline;background:#ffffffdb;border:1px solid #355c7729;border-radius:14px;width:auto;min-width:112px;max-width:min(220px,100%);min-height:40px;padding:8px 10px;margin:0!important}.question-interactive-formula-blank__display[data-v-d7990892]{color:inherit;cursor:pointer;font:inherit;text-align:center;touch-action:manipulation;justify-content:center;align-items:center;display:inline-flex}.question-interactive-formula-blank__display[data-v-d7990892]:disabled{cursor:default;opacity:1}.question-interactive-formula-blank__display[data-v-d7990892]:focus-visible{outline-offset:2px;outline:2px solid #355c775c}.question-interactive-formula-blank__value[data-v-d7990892]{pointer-events:none}.question-interactive-formula-blank__button[data-v-d7990892]{min-width:78px;height:36px;color:var(--ep-accent-strong,#26475e);cursor:pointer;font:inherit;touch-action:manipulation;white-space:nowrap;background:#ffffffe6;border:1px solid #355c772e;border-radius:10px;flex:none;padding:0 10px;font-size:14px;font-weight:800;line-height:1}.question-interactive-formula-blank__button[data-v-d7990892]:focus-visible{outline-offset:2px;outline:2px solid #355c775c}.question-interactive-formula-blank__button[data-v-d7990892]:disabled{cursor:not-allowed;opacity:.48}.question-interactive-formula-blank__feedback[data-v-d7990892]{flex:0 0 22px;place-items:center;width:22px;height:22px;display:inline-grid}.question-interactive-formula-blank__feedback--correct[data-v-d7990892]{color:#21633a}.question-interactive-formula-blank__feedback--incorrect[data-v-d7990892]{color:#8b2d2d}@media (max-width:760px){.question-interactive-formula-blank[data-v-d7990892]{margin:4px 0}.question-interactive-formula-blank__input[data-v-d7990892],.question-interactive-formula-blank__display[data-v-d7990892]{min-width:104px}}.question-interactive-blank-fill-passage[data-v-385e14d1]{line-height:1.78;display:block}.question-interactive-blank-fill-passage[data-v-385e14d1] .question-rich-text{display:inline}.question-interactive-word-blank[data-v-385e14d1]{vertical-align:baseline;width:auto;min-width:112px;max-width:min(220px,100%);margin:0 6px}.question-interactive-blank-prompts[data-v-385e14d1]{background:#ffffff94;border:1px solid #355c771a;border-radius:14px;gap:8px;padding:10px 12px;display:grid}.question-interactive-blank-prompts p[data-v-385e14d1]{align-items:flex-start;gap:8px;margin:0;line-height:1.5;display:flex}.question-interactive-blank-prompts strong[data-v-385e14d1]{color:var(--ep-accent-strong,#26475e);flex:none}@media (max-width:760px){.question-interactive-word-blank[data-v-385e14d1]{min-width:104px;margin:4px 0}}.question-interactive-cloze-options[data-v-180b2eeb]{gap:10px;display:grid}.question-interactive-cloze-option-groups[data-v-180b2eeb]{gap:16px;display:grid}.question-interactive-cloze-option-group[data-v-180b2eeb]{gap:8px;display:grid}.question-interactive-cloze-option-group h4[data-v-180b2eeb]{margin:0}.question-interactive-cloze-option-list[data-v-180b2eeb]{gap:8px;display:grid}.question-interactive-cloze-option-key[data-v-180b2eeb]{flex:none}.question-interactive-listening-option-list[data-v-052bac24]{gap:8px;display:grid}.question-interactive-listening-option-key[data-v-052bac24]{flex:none}.question-image-preview[data-v-35a031d0]{z-index:3000;box-sizing:border-box;background:#07111cd1;place-items:center;padding:18px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.question-image-preview__close[data-v-35a031d0]{z-index:1;color:#fff;cursor:pointer;background:#0f172ab8;border:1px solid #ffffff38;border-radius:8px;justify-content:center;align-items:center;min-width:64px;height:36px;padding:0 14px;font-size:14px;font-weight:600;display:inline-flex;position:absolute;top:16px;right:16px}.question-image-preview__stage[data-v-35a031d0]{touch-action:none;user-select:none;justify-content:center;align-items:center;width:100%;height:100%;display:flex;overflow:hidden}.question-image-preview__image[data-v-35a031d0]{object-fit:contain;transform-origin:50%;will-change:transform;max-width:min(96vw,1280px);max-height:88vh;transition:transform 80ms ease-out;display:block}@media (max-width:640px){.question-image-preview[data-v-35a031d0]{padding:10px}.question-image-preview__close[data-v-35a031d0]{top:10px;right:10px}.question-image-preview__image[data-v-35a031d0]{max-width:98vw;max-height:86vh}}.question-interactive-reading-option-list[data-v-15d86546]{gap:8px;display:grid}.question-interactive-reading-option-key[data-v-15d86546]{flex:none}.question-interactive-seven-five-passage[data-v-cffc726b]{line-height:1.78;display:block}.question-interactive-seven-five-passage[data-v-cffc726b] .question-rich-text{display:inline}.question-interactive-seven-five-select[data-v-cffc726b]{vertical-align:baseline;width:auto;min-width:118px;max-width:min(220px,100%);margin:0 6px}.question-interactive-seven-five-options[data-v-cffc726b]{gap:10px;padding-top:4px;display:grid}.question-interactive-seven-five-options__title[data-v-cffc726b]{color:var(--ep-accent-strong,#26475e);font-size:.88rem}.question-interactive-seven-five-option-list[data-v-cffc726b]{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:8px;display:grid}.question-interactive-seven-five-option[data-v-cffc726b]{background:#ffffffb8;border:1px solid #355c771f;border-radius:14px;grid-template-columns:32px minmax(0,1fr);align-items:start;gap:10px;padding:10px 12px;display:grid}.question-interactive-seven-five-option__key[data-v-cffc726b]{width:28px;height:28px;color:var(--ep-accent-strong,#26475e);background:#355c771a;border-radius:999px;justify-content:center;align-items:center;font-weight:800;line-height:1;display:inline-flex}.question-interactive-seven-five-option__content[data-v-cffc726b]{min-width:0;line-height:1.55}@media (max-width:760px){.question-interactive-seven-five-option-list[data-v-cffc726b]{grid-template-columns:1fr}.question-interactive-seven-five-select[data-v-cffc726b]{min-width:104px;margin:4px 0}}.question-interactive-word-bank-passage[data-v-1db1999c]{line-height:1.78;display:block}.question-interactive-word-bank-passage[data-v-1db1999c] .question-rich-text{display:inline}.question-interactive-word-blank[data-v-1db1999c]{vertical-align:baseline;width:auto;min-width:112px;max-width:min(220px,100%);margin:0 6px}.question-interactive-blank-prompts[data-v-1db1999c]{background:#ffffff94;border:1px solid #355c771a;border-radius:14px;gap:8px;padding:10px 12px;display:grid}.question-interactive-blank-prompts p[data-v-1db1999c]{align-items:flex-start;gap:8px;margin:0;line-height:1.5;display:flex}.question-interactive-blank-prompts strong[data-v-1db1999c]{color:var(--ep-accent-strong,#26475e);flex:none}.question-interactive-word-bank[data-v-1db1999c]{flex-wrap:wrap;align-items:flex-start;gap:8px;padding-top:4px;display:flex}.question-interactive-word-bank__label[data-v-1db1999c]{color:var(--ep-accent-strong,#26475e);flex:none;font-size:.88rem;font-weight:800;line-height:30px}.question-interactive-word-bank-word[data-v-1db1999c]{background:#ffffffb8;border:1px solid #355c771f;border-radius:999px;align-items:center;min-height:30px;padding:5px 10px;line-height:1.3;display:inline-flex}@media (max-width:760px){.question-interactive-word-blank[data-v-1db1999c]{min-width:104px;margin:4px 0}}.question-interactive-analysis[data-v-c75ed804]{background:#f8fafceb;border:1px solid #355c771f;border-radius:14px;gap:12px;padding:14px;display:grid}.question-interactive-analysis h3[data-v-c75ed804]{margin:0;font-size:16px;line-height:1.4}.question-interactive-analysis__block[data-v-c75ed804]{gap:8px;line-height:1.72;display:grid}.question-interactive-analysis__block strong[data-v-c75ed804]{font-size:14px}.question-interactive-analysis__answer[data-v-c75ed804]{align-items:flex-start;gap:6px;margin:0;display:flex}.question-interactive-analysis__answer>span[data-v-c75ed804]{flex:none;font-weight:600}.question-interactive-analysis__video[data-v-c75ed804]{color:#355c77;cursor:pointer;background:0 0;border:0;width:fit-content;padding:0;font-weight:600;text-decoration:none}.question-video-preview[data-v-c75ed804]{z-index:3000;background:#0f172ab3;place-items:center;padding:16px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.question-video-preview__panel[data-v-c75ed804]{background:#fff;border-radius:12px;gap:10px;width:min(920px,100%);max-height:min(720px,92vh);padding:12px;display:grid;box-shadow:0 20px 70px #0f172a42}.question-video-preview__header[data-v-c75ed804]{justify-content:space-between;align-items:center;gap:12px;display:flex}.question-video-preview__header button[data-v-c75ed804]{color:#0f172a;background:#0f172a14;border:0;border-radius:999px;width:32px;height:32px;font-size:22px;line-height:1}.question-video-preview__player[data-v-c75ed804]{background:#000;border-radius:8px;width:100%;max-height:calc(92vh - 76px)}.solve-shell{--solve-z-directory-overlay:120;--solve-content-gap:10px;--solve-panel-padding:14px;--solve-panel-radius:22px;--solve-content-top-padding:10px;--solve-content-bottom-padding:8px;--solve-overview-gap:10px;--solve-overview-margin-top:10px;--solve-stat-padding:12px;--ep-shell-horizontal-padding:clamp(10px, 1.35vw, 20px);--ep-shell-top-padding:calc(8px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(58px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:0px;--ep-shell-floating-side-offset:10px;--ep-shell-floating-top-offset:10px;--ep-shell-floating-toggle-offset:12px;--ep-shell-floating-toggle-size:48px;box-sizing:border-box;height:100vh;height:100dvh;min-height:100vh;min-height:100dvh;max-height:100vh;max-height:100dvh;overflow:hidden}.solve-shell.exam-paper-shell--without-floating-toggle{--ep-shell-bottom-padding:calc(20px + env(safe-area-inset-bottom))}.solve-shell.layout-landscape{--solve-content-gap:8px;--solve-panel-padding:12px;--solve-content-top-padding:8px;--solve-content-bottom-padding:6px;--solve-stat-padding:10px;--ep-shell-horizontal-padding:clamp(8px, 1vw, 16px);--ep-shell-top-padding:calc(6px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(52px + env(safe-area-inset-bottom));--ep-shell-floating-side-offset:8px;--ep-shell-floating-top-offset:8px;--ep-shell-floating-toggle-offset:10px;--ep-shell-floating-toggle-size:46px}.solve-shell.exam-paper-shell--without-floating-toggle.layout-landscape{--ep-shell-bottom-padding:calc(16px + env(safe-area-inset-bottom))}.solve-shell .exam-paper-shell__frame{flex-direction:column;flex:auto;height:100%;min-height:0;display:flex;overflow:hidden}.solve-shell .exam-paper-shell__content{flex-direction:column;flex:auto;width:100%;height:100%;min-height:0;margin-left:0;padding:0;display:flex;overflow:hidden}.solve-content{gap:var(--solve-content-gap);height:100%;min-height:0;padding-top:var(--solve-content-top-padding);padding-bottom:var(--solve-content-bottom-padding);box-sizing:border-box;touch-action:pan-y;flex-direction:column;flex:auto;display:flex;overflow:hidden}.panel,.state-card{border:1px solid var(--ep-border);border-radius:var(--solve-panel-radius);box-shadow:none;background:#fffcf7f5}.header-panel,.overview-panel,.feedback-panel,.submit-bar,.directory-panel,.question-card,.state-card{padding:var(--solve-panel-padding)}.header-panel,.overview-panel,.feedback-panel,.submit-bar{flex:none}.submit-bar{z-index:3;isolation:isolate;pointer-events:auto;position:relative}.practice-busy-host{position:relative}.practice-busy-overlay{z-index:12;border-radius:inherit;backdrop-filter:blur(2px);pointer-events:auto;box-sizing:border-box;background:#fffcf7b8;place-items:center;padding:20px;display:grid;position:absolute;top:0;bottom:0;left:0;right:0}.practice-busy-panel{width:min(360px,100%);color:var(--ep-text);text-align:center;background:#fffffff0;border:1px solid #355c7729;border-radius:18px;justify-items:center;gap:8px;padding:20px;display:grid;box-shadow:0 18px 54px #152a3a24}.practice-busy-panel strong{font-size:1.08rem;line-height:1.25}.practice-busy-panel p{color:var(--ep-muted);margin:0;line-height:1.5}.practice-busy-spinner{border:3px solid #355c772e;border-top-color:var(--ep-accent-strong);border-radius:999px;width:34px;height:34px;animation:.8s linear infinite practice-busy-spin}@keyframes practice-busy-spin{to{transform:rotate(360deg)}}.header-panel{min-height:0}.header-panel h1,.overview-panel h2,.question-card h2{letter-spacing:-.04em;margin:0}.header-panel h1{font-size:max(1.18rem,min(1.02rem + .46vw,1.48rem));line-height:1.12}.muted-text{color:var(--ep-muted);margin:0;line-height:1.5}.overview-header,.question-header,.submit-bar,.directory-header{justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.overview-grid{gap:var(--solve-overview-gap);margin-top:var(--solve-overview-margin-top);grid-template-columns:1fr;display:grid}.stat-card,.part-card,.content-block,.result-card{padding:var(--solve-stat-padding);background:#ffffffbd;border:1px solid #355c7714;border-radius:18px}.stat-card{gap:12px;display:flex}.stat-card--button{cursor:pointer;text-align:left;background:#ffffffbd;border:none;transition:background .2s}.stat-card--button:hover{background:#355c7714}@media (hover:none),(pointer:coarse){.stat-card--button{transition:none}.stat-card--button:hover{background:#ffffffbd}}.stat-icon,.state-icon{width:40px;height:40px;color:var(--ep-accent-strong);background:#355c771a;border-radius:14px;flex:none;justify-content:center;align-items:center;display:inline-flex}.stat-label{color:var(--ep-muted);margin-bottom:4px;font-size:.88rem;display:block}.feedback-panel{align-items:flex-start;gap:10px;display:flex}.feedback-panel p{margin:0;line-height:1.45}.badge-row{flex-wrap:wrap;gap:8px;display:flex}.badge{min-height:30px;color:var(--ep-accent-strong);background:#355c771a;border:1px solid #355c771f;border-radius:999px;align-items:center;gap:6px;padding:0 10px;font-size:.86rem;display:inline-flex}.badge--soft{background:#ffffffe0}.badge--success{color:#28573a;background:#5a8c6724}.badge--warning{color:#855515;background:#b6823c24}.badge--danger{color:#8f2f21;background:#ae544324}.audio-player{width:100%}.state-shell{-webkit-overflow-scrolling:touch;flex:auto;justify-content:center;align-items:flex-start;min-height:0;padding-top:max(18px,min(4vh,52px));padding-bottom:16px;display:flex;overflow-y:auto}.state-card{flex-direction:column;gap:18px;width:min(720px,100%);display:flex}.state-card--error{border-color:#ae544338}.state-text{color:var(--ep-muted);margin:0;line-height:1.6}.progress-track{background:#355c7714;border-radius:999px;height:10px;overflow:hidden}.progress-fill{border-radius:inherit;background:linear-gradient(90deg,#355c77,#6a8ba1);height:100%}@media (min-width:768px){.solve-shell{--solve-content-gap:12px;--solve-panel-padding:16px;--solve-panel-radius:24px;--solve-content-top-padding:12px;--solve-content-bottom-padding:10px;--solve-overview-gap:12px;--solve-overview-margin-top:12px;--solve-stat-padding:12px}.solve-shell.exam-paper-shell--without-floating-toggle{--ep-shell-bottom-padding:calc(22px + env(safe-area-inset-bottom))}.overview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1200px){.solve-shell{--solve-content-gap:14px;--solve-panel-padding:18px;--solve-panel-radius:28px;--solve-content-top-padding:14px;--solve-content-bottom-padding:12px;--solve-overview-gap:14px;--solve-overview-margin-top:14px;--solve-stat-padding:14px}.solve-shell.exam-paper-shell--without-floating-toggle{--ep-shell-bottom-padding:calc(24px + env(safe-area-inset-bottom))}.header-panel h1{font-size:max(1.42rem,min(1.22rem + .58vw,1.9rem))}.overview-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (max-width:720px){.header-panel,.overview-panel,.feedback-panel,.submit-bar,.directory-panel,.question-card,.state-card{border-radius:20px}.overview-header,.question-header,.submit-bar,.directory-header{flex-direction:column;align-items:flex-start;gap:10px}.submit-bar{gap:10px}.submit-bar .ep-icon-button--primary{justify-content:center;width:100%}.state-actions{flex-direction:column;align-items:stretch}}@media (max-width:480px),(orientation:landscape) and (max-height:420px){.solve-shell{--solve-content-gap:6px;--solve-panel-padding:10px;--solve-panel-radius:16px;--solve-content-top-padding:6px;--solve-content-bottom-padding:4px;--solve-overview-gap:8px;--solve-overview-margin-top:8px;--solve-stat-padding:8px;--ep-shell-horizontal-padding:8px;--ep-shell-top-padding:calc(4px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(48px + env(safe-area-inset-bottom));--ep-shell-floating-side-offset:6px;--ep-shell-floating-top-offset:6px;--ep-shell-floating-toggle-offset:8px;--ep-shell-floating-toggle-size:42px;height:100vh;height:100dvh;min-height:100vh;min-height:100dvh;max-height:100vh;max-height:100dvh;overflow:hidden}.solve-shell.exam-paper-shell--without-floating-toggle,.solve-shell.exam-paper-shell--without-floating-toggle.layout-landscape{--ep-shell-bottom-padding:calc(12px + env(safe-area-inset-bottom))}.solve-shell .exam-paper-shell__frame,.solve-shell .exam-paper-shell__content,.solve-content,.question-scroll-area{height:100%;min-height:0;max-height:100%;overflow:hidden}.question-scroll-area{scrollbar-gutter:auto;flex:1 1 0;padding-right:2px;overflow:hidden auto}.header-panel h1{font-size:max(1rem,min(.92rem + .35vw,1.2rem));line-height:1.08}.header-panel .section-eyebrow,.header-panel .muted-text{display:none}.solve-shell .header-panel .header-content{gap:8px}.solve-shell .header-panel .header-stats,.solve-shell .badge-row{gap:6px}.solve-shell .header-panel .stat-badge,.solve-shell .badge{min-height:26px;padding:0 8px;font-size:.74rem}.feedback-panel{max-height:48px;padding-top:8px;padding-bottom:8px;overflow-y:auto}.feedback-panel .state-icon{border-radius:10px;width:30px;height:30px}.feedback-panel p{font-size:.82rem;line-height:1.35}.submit-bar{align-items:center;gap:8px}.submit-bar .badge-row{flex:auto}.solve-shell .ep-icon-button{border-radius:14px;min-height:40px;padding:9px 12px}.solve-shell .ep-icon-button--icon-only{width:42px;min-width:42px;padding:0}.state-shell{padding-top:10px;padding-bottom:10px}.state-card{gap:12px}}.question-scroll-area{--question-virtual-gap:12px;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y;scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:#355c7752 #355c7714;z-index:0;overflow-anchor:none;flex:1 1 0;min-height:0;max-height:100%;padding-bottom:4px;padding-right:4px;display:block;position:relative;overflow:hidden auto}.question-virtual-list{width:100%;min-height:100%;position:relative}.question-virtual-item{box-sizing:border-box;contain:layout paint style;position:absolute;top:0;left:0;right:0}.solve-shell.layout-landscape .question-scroll-area{padding-right:2px}.question-scroll-area::-webkit-scrollbar{width:12px}.question-scroll-area::-webkit-scrollbar-track{background:#355c7714;border-radius:999px}.question-scroll-area::-webkit-scrollbar-thumb{background:#355c7752;border:2px solid #fffcf7f5;border-radius:999px}.question-card{box-sizing:border-box;contain:layout paint style;flex-direction:column;flex-shrink:0;gap:14px;max-width:100%;display:flex}.question-card .question-header{grid-template-columns:minmax(0,1fr) max-content;align-items:start;display:grid}.question-title{flex-direction:column;gap:6px;min-width:0;display:flex}.question-card>.question-header>.badge-row{flex-wrap:nowrap;justify-content:flex-end;min-width:max-content}.question-card .question-rich-text{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.question-card h2 .question-rich-text{display:inline}.question-card .question-rich-text__formula{max-width:100%;color:inherit}.question-card .question-rich-text__formula--inline{vertical-align:-.12em;display:inline-block}.question-card .question-rich-text__formula--block{margin:8px 0;display:block;overflow:auto hidden}.question-card .question-rich-text__image{vertical-align:middle;max-width:100%;margin:6px 0;display:inline-flex}.question-card .question-rich-text__image img{object-fit:contain;cursor:zoom-in;background:#fff;border:1px solid #355c771a;border-radius:12px;max-width:min(420px,100%);max-height:260px;display:block}.question-card .question-rich-text__image-placeholder{color:#983b2d;background:#ae54431a;border-radius:8px;max-width:100%;padding:5px 8px;font-size:.84rem;display:inline-flex}.question-card .question-rich-text__blank{min-width:28px;color:var(--ep-accent-strong);border-bottom:1px solid #355c775c;justify-content:center;margin:0 2px;padding:0 4px;display:inline-flex}.exam-paper-interactive-question,.question-interactive-body,.question-interactive-stem,.question-interactive-options,.question-interactive-word-passage,.question-interactive-reading-parts,.question-interactive-listening-parts,.question-interactive-essay-answer,.question-interactive-comprehensive-parts{gap:12px;display:grid}.question-interactive-stem,.question-interactive-word-passage,.question-interactive-reading-passage,.question-interactive-listening-passage,.question-interactive-comprehensive-passage{line-height:1.68}.question-interactive-stem p{margin:0}.question-interactive-choice-type,.question-interactive-comprehensive-part-header{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.question-interactive-type-badge{width:fit-content;min-height:24px;color:var(--ep-accent-strong);background:#355c771a;border-radius:999px;align-items:center;padding:3px 8px;font-size:.84rem;font-weight:700;line-height:1.3;display:inline-flex}.question-interactive-choice-type>span:last-child{color:var(--ep-muted);font-size:.88rem}.question-interactive-comprehensive-part-header h4{margin:0}.question-interactive-seven-five-passage,.question-interactive-word-bank-passage,.question-interactive-blank-fill-passage{display:block}.question-interactive-option,.question-interactive-reading-option,.question-interactive-listening-option,.question-interactive-cloze-option{width:100%;min-width:0;color:inherit;text-align:left;font:inherit;background:#ffffffc7;border:1px solid #355c771f;border-radius:16px;align-items:flex-start;gap:10px;padding:11px;display:flex}.question-interactive-option{cursor:pointer}.question-interactive-option:disabled,.question-interactive-option[aria-disabled=true],.question-interactive-reading-option:disabled,.question-interactive-listening-option:disabled,.question-interactive-cloze-option:disabled{cursor:default}.question-interactive-option>strong,.question-interactive-reading-option-key,.question-interactive-listening-option-key,.question-interactive-cloze-option-key{width:26px;min-width:26px;height:26px;color:var(--ep-accent-strong);background:#355c771a;border-radius:999px;justify-content:center;align-items:center;font-size:.84rem;display:inline-flex}.question-interactive-option>span,.question-interactive-reading-option>div,.question-interactive-listening-option>div,.question-interactive-cloze-option>div{overflow-wrap:anywhere;min-width:0}.question-interactive-option--selected,.question-interactive-reading-option--selected,.question-interactive-listening-option--selected,.question-interactive-cloze-option--selected{background:#e9f3f8eb;border-color:#355c7747}.question-interactive-option--correct,.question-interactive-reading-option--correct,.question-interactive-listening-option--correct,.question-interactive-cloze-option--correct,.question-interactive-word-blank--correct,.question-interactive-seven-five-select--correct{background:#eef8f2f5;border-color:#42825c47}.question-interactive-option--incorrect,.question-interactive-reading-option--incorrect,.question-interactive-listening-option--incorrect,.question-interactive-cloze-option--incorrect,.question-interactive-word-blank--incorrect,.question-interactive-seven-five-select--incorrect{background:#fdf1eff5;border-color:#ae544347}.question-interactive-word-blank,.question-interactive-seven-five-select,.question-interactive-essay-textarea{min-height:40px;color:inherit;font:inherit;background:#ffffffdb;border:1px solid #355c7729;border-radius:14px;padding:8px 10px}.question-interactive-seven-five-select{width:auto;min-width:118px;max-width:min(220px,100%)}.question-interactive-word-bank-passage .question-interactive-word-blank,.question-interactive-blank-fill-passage .question-interactive-word-blank{width:auto;min-width:112px;max-width:min(220px,100%)}.question-interactive-essay-textarea{resize:vertical;width:100%;min-height:180px}.question-rich-text__image img,.question-interactive-assets img,.question-interactive-option img{object-fit:contain;cursor:zoom-in;border-radius:12px;max-width:min(420px,100%);height:auto;max-height:260px}.question-interactive-assets{gap:10px;display:grid}.question-interactive-assets figure,.question-interactive-option small{margin:0}.question-interactive-option small{cursor:zoom-in;max-width:100%;display:inline-flex}.passage-box{white-space:pre-wrap;overflow-wrap:anywhere;background:#ffffffbd;border:1px solid #355c7714;border-radius:18px;max-width:100%;margin:0;padding:14px;font-family:Georgia,Noto Serif SC,serif;line-height:1.68}.prompt-list{color:var(--ep-muted);margin:0;padding-left:18px;line-height:1.7}.part-card{flex-direction:column;gap:10px;min-width:0;display:flex}.part-card-anchor{height:0;display:block;overflow:hidden}@media (max-width:720px){.question-card .question-header{grid-template-columns:minmax(0,1fr)}.question-card>.question-header>.badge-row{flex-wrap:wrap;justify-content:flex-start;min-width:0}}.part-card h3{margin:0 0 6px}.option-list{gap:8px;display:grid}.option-item{cursor:pointer;user-select:none;-webkit-tap-highlight-color:transparent;background:#ffffffc7;border:1px solid #355c771f;border-radius:16px;grid-template-columns:auto auto minmax(0,1fr);align-items:start;gap:10px;padding:11px;display:grid}.option-content,.option-item span:last-child{overflow-wrap:anywhere;min-width:0}.option-content{flex-direction:column;gap:8px;display:flex}.option-item.is-selected{background:#e9f3f8eb;border-color:#355c7747}.option-item.is-result-correct{background:#eef8f2f5;border-color:#42825c47}.option-item.is-result-wrong{background:#fdf1eff5;border-color:#ae544347}.option-item.is-result-correct .option-key{color:#2c6c45;background:#42825c24}.option-item.is-result-wrong .option-key{color:#983b2d;background:#ae544324}.option-item.is-result-correct.is-selected{background:#e6f5ecfa;border-color:#42825c5c}.option-item.is-result-wrong.is-selected{background:#f9e4e0fa;border-color:#ae54435c}.option-item.is-disabled{cursor:default}.option-key{width:26px;min-width:26px;height:26px;color:var(--ep-accent-strong);background:#355c771a;border-radius:999px;justify-content:center;align-items:center;font-size:.84rem;display:inline-flex}.answer-input,.answer-textarea{width:100%;min-width:0;color:var(--ep-text);font:inherit;background:#ffffffe0;border:1px solid #355c7724;border-radius:16px;padding:10px 12px}.answer-textarea{resize:vertical;min-height:116px;line-height:1.68}.inline-blank-row{overflow-wrap:anywhere;flex-wrap:wrap;align-items:center;gap:8px;line-height:1.8;display:flex}.answer-input--inline{width:78px;min-height:38px}.inline-placeholder{border-bottom:2px solid #355c7738;width:78px;min-height:38px;display:inline-block}.result-block{flex-direction:column;gap:8px;display:flex}.result-block strong{color:var(--ep-accent-strong);font-size:.94rem}.result-list{color:var(--ep-muted);margin:0;padding-left:18px;line-height:1.6}.question-image-list{gap:10px;display:grid}.exam-paper-lazy-image{background:#ffffffb8;border:1px solid #355c771a;border-radius:16px;width:min(420px,100%);max-width:100%;margin:0;overflow:hidden}.exam-paper-lazy-image__img{object-fit:contain;cursor:zoom-in;width:100%;max-width:100%;height:100%;max-height:280px;display:block}.exam-paper-lazy-image__placeholder{height:100%;min-height:96px;color:var(--ep-muted);background:#355c770d;justify-content:center;align-items:center;margin:0;font-size:.86rem;display:flex}@media (min-width:1200px){.question-scroll-area{--question-virtual-gap:16px}.question-card{gap:16px}.passage-box{border-radius:24px;padding:18px}.part-card{gap:12px}.option-item{border-radius:18px;padding:13px}.answer-input,.answer-textarea{border-radius:18px;padding:12px 14px}.answer-textarea{min-height:148px}.answer-input--inline,.inline-placeholder{width:92px;min-height:42px}}@media (max-width:720px){.question-scroll-area{scrollbar-gutter:auto;padding-right:2px}.question-card{gap:12px}.passage-box{border-radius:16px;padding:12px}.option-item{grid-template-columns:auto auto minmax(0,1fr);padding:10px}}@media (orientation:landscape) and (max-height:420px){.question-scroll-area{--question-virtual-gap:8px;scrollbar-gutter:auto;gap:8px;padding-bottom:2px;padding-right:2px}.question-card{gap:10px}.question-title{gap:4px}.question-card h2{font-size:max(1rem,min(.92rem + .34vw,1.18rem));line-height:1.16}.passage-box,.part-card,.content-block,.result-card{border-radius:14px;padding:9px}.prompt-list,.passage-box,.muted-text{line-height:1.42}.option-list{gap:6px}.option-item{border-radius:12px;gap:8px;padding:8px}.option-key{width:24px;min-width:24px;height:24px;font-size:.78rem}.answer-input,.answer-textarea{border-radius:12px;padding:8px 10px}.answer-textarea{min-height:78px}.answer-input--inline,.inline-placeholder{width:68px;min-height:34px}}@media (max-width:480px),(orientation:landscape) and (max-height:420px){.solve-shell{height:100vh;height:100dvh;min-height:100vh;min-height:100dvh;max-height:100vh;max-height:100dvh;overflow:hidden}.solve-shell .exam-paper-shell__frame,.solve-shell .exam-paper-shell__content,.solve-content,.question-scroll-area{height:100%;min-height:0;max-height:100%;overflow:hidden}.question-scroll-area{scrollbar-gutter:auto;flex:1 1 0;padding-right:2px;overflow:hidden auto}}html.ep-exam-paper.ep-client-unity .exam-paper-shell,html.ep-exam-paper.ep-client-unity .exam-paper-shell__frame,html.ep-exam-paper.ep-client-unity .exam-paper-shell__content,html.ep-exam-paper.ep-client-unity .list-shell,html.ep-exam-paper.ep-client-unity .solve-shell,html.ep-exam-paper.ep-client-unity .solve-content{-webkit-overflow-scrolling:touch;overscroll-behavior:contain}html.ep-exam-paper.ep-client-unity .paper-card,html.ep-exam-paper.ep-client-unity .question-card,html.ep-exam-paper.ep-client-unity .section-block,html.ep-exam-paper.ep-client-unity .history-section,html.ep-exam-paper.ep-client-unity .part-card,html.ep-exam-paper.ep-client-unity .passage-box,html.ep-exam-paper.ep-client-unity .option-item,html.ep-exam-paper.ep-client-unity .exam-paper-lazy-image{contain:layout paint style}html.ep-exam-paper.ep-client-unity .panel,html.ep-exam-paper.ep-client-unity .state-card,html.ep-exam-paper.ep-client-unity .paper-card,html.ep-exam-paper.ep-client-unity .empty-card,html.ep-exam-paper.ep-client-unity .part-card,html.ep-exam-paper.ep-client-unity .content-block,html.ep-exam-paper.ep-client-unity .result-card,html.ep-exam-paper.ep-client-unity .passage-box,html.ep-exam-paper.ep-client-unity .option-item,html.ep-exam-paper.ep-client-unity .paper-card__metric,html.ep-exam-paper.ep-client-unity .paper-card__score,html.ep-exam-paper.ep-client-unity .paper-card__tag,html.ep-exam-paper.ep-client-unity .exam-paper-lazy-image,html.ep-exam-paper.ep-client-unity .exam-paper-lazy-image__placeholder{box-shadow:none;background-color:#fffaf4}html.ep-exam-paper.ep-client-unity .option-item.is-selected,html.ep-exam-paper.ep-client-unity .directory-item.answered,html.ep-exam-paper.ep-client-unity .sub-item.answered{background-color:#edf5f8}html.ep-exam-paper.ep-client-unity .option-item.is-result-correct,html.ep-exam-paper.ep-client-unity .paper-card__score--high{background-color:#eef8f2}html.ep-exam-paper.ep-client-unity .option-item.is-result-wrong,html.ep-exam-paper.ep-client-unity .paper-card__score--low{background-color:#fdf1ef}html.ep-exam-paper.ep-client-unity .paper-card__score--mid{background-color:#fef8eb}html.ep-exam-paper.ep-client-unity .ep-icon-button,html.ep-exam-paper.ep-client-unity .paper-card,html.ep-exam-paper.ep-client-unity .option-item,html.ep-exam-paper.ep-client-unity .stat-card--button{box-shadow:none;-webkit-backdrop-filter:none;transition:none;transform:none}html.ep-exam-paper.ep-client-unity .ep-icon-button:hover,html.ep-exam-paper.ep-client-unity .paper-card:hover,html.ep-exam-paper.ep-client-unity .stat-card--button:hover{box-shadow:none;transform:none}html.ep-exam-paper.ep-client-unity .ep-icon-button:focus-visible{box-shadow:none;transform:none}html.ep-exam-paper.ep-client-unity .question-scroll-area,html.ep-exam-paper.ep-client-unity .list-shell .exam-paper-shell__content,html.ep-exam-paper.ep-client-unity .history-grid{scrollbar-gutter:auto;scrollbar-width:none}html.ep-exam-paper.ep-client-unity .question-scroll-area::-webkit-scrollbar{width:0;height:0}html.ep-exam-paper.ep-client-unity .history-grid::-webkit-scrollbar{width:0;height:0}html.ep-exam-paper.ep-client-unity .history-grid{max-height:none;overflow:visible}html.ep-exam-paper.ep-client-unity .exam-paper-lazy-image__img{transform:translateZ(0)}.ep-icon-button[data-v-b3abb314]{color:#1c2530;cursor:pointer;min-height:46px;font:inherit;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:#fffcf8f0;border:1px solid #33455c24;border-radius:16px;justify-content:center;align-items:center;gap:10px;padding:12px 16px;font-weight:600;line-height:1;transition:transform .18s,border-color .18s,background-color .18s,box-shadow .18s;display:inline-flex}.ep-icon-button--icon-only[data-v-b3abb314]{width:48px;min-width:48px;padding:0}.ep-icon-button--glass[data-v-b3abb314]:hover{background:#ffffffdb;border-color:#355c7742;transform:translateY(-1px);box-shadow:0 14px 32px #161d261a}.ep-icon-button--glass[data-v-b3abb314]:focus-visible{background:#ffffffdb;border-color:#355c7742;transform:translateY(-1px);box-shadow:0 14px 32px #161d261a}.ep-icon-button--primary[data-v-b3abb314]{color:#fffdf8;background:linear-gradient(135deg,#355c77,#26475e);border-color:#30566e2e;box-shadow:0 18px 32px #22384a38}.ep-icon-button--primary[data-v-b3abb314]:hover{transform:translateY(-1px);box-shadow:0 20px 34px #22384a47}.ep-icon-button--primary[data-v-b3abb314]:focus-visible{transform:translateY(-1px);box-shadow:0 20px 34px #22384a47}.ep-icon-button--active[data-v-b3abb314]{color:#24465f;background:#edf4f9f2;border-color:#355c7757}.ep-icon-button--disabled[data-v-b3abb314],.ep-icon-button[data-v-b3abb314]:disabled{opacity:.58;cursor:not-allowed;box-shadow:none;transform:none}.ep-icon-button[data-v-b3abb314]:focus-visible{outline-offset:2px;outline:2px solid #355c7766}.ep-icon-button__label[data-v-b3abb314]{white-space:nowrap}@media (prefers-reduced-motion:reduce){.ep-icon-button[data-v-b3abb314]{transition:none}}html{scroll-padding-top:calc(116px + env(safe-area-inset-top))}.exam-paper-shell{--ep-bg:#f5f1e8;--ep-bg-soft:#eef3f6;--ep-surface:#fffcf7c2;--ep-surface-strong:#fffdf9eb;--ep-border:#3a4c601f;--ep-border-strong:#3a4c6033;--ep-text:#18222d;--ep-muted:#627180;--ep-accent:#355c77;--ep-accent-strong:#26475e;--ep-accent-soft:#355c771f;--ep-shadow:0 22px 48px #171e281a;--ep-z-content:1;--ep-z-topbar:40;--ep-z-floating-slot:95;--ep-z-toggle:90;--ep-z-trailing:100;--ep-shell-horizontal-padding:clamp(12px, 1.6vw, 24px);--ep-shell-top-padding:calc(12px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(76px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:16px;--ep-shell-topbar-padding:14px;--ep-shell-topbar-min-height:112px;--ep-shell-slot-offset:12px;--ep-shell-floating-side-offset:12px;--ep-shell-floating-top-offset:12px;--ep-shell-floating-toggle-offset:16px;--ep-shell-floating-toggle-size:54px;min-height:100vh;min-height:100dvh;padding:var(--ep-shell-top-padding) var(--ep-shell-horizontal-padding) var(--ep-shell-bottom-padding);touch-action:pan-y;color:var(--ep-text);box-sizing:border-box;background:linear-gradient(#f5f1e8fa,#f5f1e8);flex-direction:column;display:flex;position:relative;overflow-x:hidden}.exam-paper-shell.layout-landscape{--ep-shell-horizontal-padding:clamp(10px, 1.2vw, 18px);--ep-shell-top-padding:calc(8px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(64px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:12px;--ep-shell-topbar-min-height:98px;--ep-shell-slot-offset:10px;--ep-shell-floating-side-offset:10px;--ep-shell-floating-top-offset:10px;--ep-shell-floating-toggle-offset:14px}.exam-paper-shell__backdrop{display:none}.exam-paper-shell__frame{width:min(var(--ep-shell-frame-max-width), 100%);flex-direction:column;flex:auto;min-height:0;margin:0 auto;display:flex}.exam-paper-shell__topbar{z-index:var(--ep-z-topbar);width:calc(100% - var(--ep-shell-content-offset-left));margin-left:var(--ep-shell-content-offset-left);padding:var(--ep-shell-topbar-padding);border:1px solid var(--ep-border);box-shadow:none;min-height:var(--ep-shell-topbar-min-height);background:#fffaf4b8;border-radius:24px;justify-content:center;align-items:center;display:flex;position:relative}.exam-paper-shell__topbar--sticky{position:sticky;top:0}.exam-paper-shell__slot{top:var(--ep-shell-slot-offset);align-items:center;min-height:48px;display:flex;position:absolute}.exam-paper-shell__slot--leading{left:var(--ep-shell-slot-offset);justify-content:flex-start}.exam-paper-shell__headline{text-align:center;width:100%;min-width:0;padding:0 28px 0 max(88px,min(12vw,180px))}.exam-paper-shell__eyebrow{color:var(--ep-accent);letter-spacing:.18em;text-transform:uppercase;margin:0;font-size:.74rem;font-weight:700}.exam-paper-shell__title{letter-spacing:-.04em;text-wrap:balance;margin:4px 0 0;font-size:max(1.28rem,min(1.06rem + .85vw,1.9rem));line-height:1.08}.exam-paper-shell__subtitle{color:var(--ep-muted);margin:8px 0 0;font-size:.9rem;line-height:1.45}.exam-paper-shell__content{width:calc(100% - var(--ep-shell-content-offset-left));margin-left:var(--ep-shell-content-offset-left);padding:var(--ep-shell-content-top-gap) 0 0;z-index:var(--ep-z-content);touch-action:pan-y;box-sizing:border-box;flex-direction:column;flex:auto;min-height:0;display:flex;position:relative}.exam-paper-shell--header-compact .exam-paper-shell__topbar{min-height:max(98px, calc(var(--ep-shell-topbar-min-height) - 12px))}.exam-paper-shell--header-compact .exam-paper-shell__headline{text-align:left;padding:0 max(82px,min(9vw,116px)) 0 max(84px,min(10vw,120px))}.exam-paper-shell--header-compact .exam-paper-shell__title{font-size:max(1.24rem,min(1.08rem + .4vw,1.55rem));font-weight:700;line-height:1.12}.exam-paper-shell--header-compact .exam-paper-shell__subtitle{margin-top:6px;font-size:.88rem;line-height:1.38}.exam-paper-shell__floating-slot{z-index:var(--ep-z-floating-slot);align-items:center;display:flex;position:fixed}.exam-paper-shell__floating-slot--leading{top:calc(var(--ep-shell-floating-top-offset) + env(safe-area-inset-top));left:calc(var(--ep-shell-floating-side-offset) + env(safe-area-inset-left));z-index:var(--ep-z-trailing)}.exam-paper-shell__floating-slot--trailing{z-index:var(--ep-z-trailing);top:calc(var(--ep-shell-floating-top-offset) + env(safe-area-inset-top));right:calc(var(--ep-shell-floating-side-offset) + env(safe-area-inset-right));justify-content:flex-end}.exam-paper-shell__floating-slot--frame-trailing{position:absolute;top:8px;right:20px}.exam-paper-shell__action-rail{flex-direction:column;align-items:flex-end;gap:10px;display:flex}.exam-paper-shell__floating-toggle{right:calc(var(--ep-shell-floating-toggle-offset) + env(safe-area-inset-right));bottom:calc(var(--ep-shell-floating-toggle-offset) + env(safe-area-inset-bottom));z-index:var(--ep-z-toggle);width:var(--ep-shell-floating-toggle-size);height:var(--ep-shell-floating-toggle-size);color:var(--ep-accent-strong);box-shadow:none;cursor:pointer;background:#fffcf7f5;border:1px solid #2c3f5229;border-radius:999px;padding:0;transition:border-color .18s,background-color .18s;position:fixed}.exam-paper-shell__floating-toggle:hover{background:#fffdfafa;border-color:#355c7747}.exam-paper-shell__floating-toggle:focus-visible{background:#fffdfafa;border-color:#355c7747}.exam-paper-shell__floating-toggle:focus-visible{outline-offset:3px;outline:2px solid #355c775c}.exam-paper-shell__floating-ring{border:1px solid #355c771a;border-radius:999px;position:absolute;top:7px;bottom:7px;left:7px;right:7px}@media (min-width:1200px){.exam-paper-shell{--ep-shell-horizontal-padding:clamp(14px, 1.4vw, 28px);--ep-shell-top-padding:calc(14px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(86px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:18px;--ep-shell-topbar-padding:16px;--ep-shell-topbar-min-height:122px;--ep-shell-slot-offset:14px;--ep-shell-floating-side-offset:14px;--ep-shell-floating-top-offset:14px;--ep-shell-floating-toggle-offset:18px;--ep-shell-floating-toggle-size:58px}.exam-paper-shell__title{font-size:max(1.42rem,min(1.2rem + 1vw,2.4rem))}.exam-paper-shell__subtitle{font-size:.95rem}.exam-paper-shell--header-compact .exam-paper-shell__title{font-size:max(1.58rem,min(1.46rem + .48vw,1.9rem))}}@media (max-width:900px){.exam-paper-shell{--ep-shell-horizontal-padding:10px;--ep-shell-top-padding:calc(8px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(68px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:10px;--ep-shell-floating-side-offset:10px;--ep-shell-floating-top-offset:10px;--ep-shell-floating-toggle-size:50px}.exam-paper-shell__topbar,.exam-paper-shell__content{width:100%;margin-left:0}.exam-paper-shell__topbar{min-height:max(104px, var(--ep-shell-topbar-min-height))}.exam-paper-shell__headline{text-align:left;padding:18px 28px 0 0}.exam-paper-shell--header-compact .exam-paper-shell__headline{padding:16px 64px 0 72px}.exam-paper-shell__floating-slot--frame-trailing{right:14px}.exam-paper-shell__action-rail{gap:8px}}@media (orientation:landscape) and (max-height:420px){.exam-paper-shell{--ep-shell-horizontal-padding:8px;--ep-shell-top-padding:calc(6px + env(safe-area-inset-top));--ep-shell-bottom-padding:calc(54px + env(safe-area-inset-bottom));--ep-shell-content-top-gap:8px;--ep-shell-topbar-padding:10px;--ep-shell-topbar-min-height:78px;--ep-shell-slot-offset:8px;--ep-shell-floating-side-offset:8px;--ep-shell-floating-top-offset:8px;--ep-shell-floating-toggle-offset:10px;--ep-shell-floating-toggle-size:46px}.exam-paper-shell__headline{padding:0 max(58px,min(8vw,88px))}.exam-paper-shell__title{font-size:max(1.08rem,min(1rem + .42vw,1.28rem))}.exam-paper-shell__subtitle{margin-top:4px;font-size:.82rem;line-height:1.3}.exam-paper-shell__action-rail{gap:6px}}@media (prefers-reduced-motion:reduce){.exam-paper-shell__floating-toggle{transition:none}}.solution-process-image-cropper[data-v-1ad67652]{z-index:10000;box-sizing:border-box;background:#0f172ab8;place-items:center;padding:16px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.solution-process-image-cropper[data-v-1ad67652] *,.solution-process-image-cropper[data-v-1ad67652] :before,.solution-process-image-cropper[data-v-1ad67652] :after{box-sizing:border-box}.solution-process-image-cropper__panel[data-v-1ad67652]{width:min(760px,100%);height:min(760px,100vh - 32px);min-height:0;color:#1b2636;background:#fff;border-radius:8px;grid-template-rows:auto minmax(0,1fr) auto;gap:12px;height:min(760px,100dvh - 32px);max-height:calc(100dvh - 32px);padding:14px;display:grid;overflow:hidden;box-shadow:0 18px 48px #0f172a47}.solution-process-image-cropper__header[data-v-1ad67652]{justify-content:space-between;align-items:center;gap:12px;display:flex}.solution-process-image-cropper__header>div[data-v-1ad67652]{gap:3px;min-width:0;display:grid}.solution-process-image-cropper__header strong[data-v-1ad67652]{font-size:1rem}.solution-process-image-cropper__header span[data-v-1ad67652]{color:#667085;font-size:.8rem}.solution-process-image-cropper__icon-button[data-v-1ad67652],.solution-process-image-cropper__tools button[data-v-1ad67652],.solution-process-image-cropper__actions button[data-v-1ad67652]{color:#1b2636;min-height:40px;font:inherit;cursor:pointer;background:#fff;border:1px solid #1b263629;border-radius:8px;justify-content:center;align-items:center;gap:6px;display:inline-flex}.solution-process-image-cropper__icon-button[data-v-1ad67652]{width:40px;padding:0}.solution-process-image-cropper__stage[data-v-1ad67652]{background:#101828;border-radius:8px;min-height:0;position:relative;overflow:hidden}.solution-process-image-cropper__source[data-v-1ad67652]{max-width:100%;display:block}.solution-process-image-cropper__stage[data-v-1ad67652] cropper-canvas{width:100%;height:100%}.solution-process-image-cropper__stage[data-v-1ad67652] cropper-selection{--theme-color:#ffffffe6}.solution-process-image-cropper__error[data-v-1ad67652]{color:#b42318;margin:0;font-size:.82rem}.solution-process-image-cropper__side[data-v-1ad67652]{gap:12px;min-height:0;display:grid}.solution-process-image-cropper__tools[data-v-1ad67652],.solution-process-image-cropper__actions[data-v-1ad67652]{flex-wrap:wrap;gap:8px;display:flex}.solution-process-image-cropper__tools button[data-v-1ad67652]{flex:96px;padding:0 12px}.solution-process-image-cropper__actions[data-v-1ad67652]{justify-content:flex-end}.solution-process-image-cropper__actions button[data-v-1ad67652]{padding:0 14px}.solution-process-image-cropper__actions .is-primary[data-v-1ad67652]{color:#fff;background:#1f6feb;border-color:#1f6feb}.solution-process-image-cropper__actions .is-secondary[data-v-1ad67652]{background:#f8fafc}.solution-process-image-cropper button[data-v-1ad67652]:disabled{cursor:not-allowed;opacity:.58}@media (max-width:640px){.solution-process-image-cropper[data-v-1ad67652]{padding:0}.solution-process-image-cropper__panel[data-v-1ad67652]{border-radius:0;width:100%;height:100%;max-height:100dvh}.solution-process-image-cropper__actions button[data-v-1ad67652]{flex:auto}}@media (orientation:landscape) and (max-height:480px){.solution-process-image-cropper[data-v-1ad67652]{padding:8px}.solution-process-image-cropper__panel[data-v-1ad67652]{width:min(960px,100vw - 16px);height:calc(100vh - 16px);grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(0,1fr) 184px;gap:8px;height:calc(100dvh - 16px);max-height:calc(100dvh - 16px);padding:8px}.solution-process-image-cropper__header[data-v-1ad67652]{grid-column:1/-1;min-height:36px}.solution-process-image-cropper__header>div[data-v-1ad67652]{gap:0}.solution-process-image-cropper__header strong[data-v-1ad67652]{font-size:.92rem}.solution-process-image-cropper__header span[data-v-1ad67652]{display:none}.solution-process-image-cropper__icon-button[data-v-1ad67652]{width:36px;min-height:36px}.solution-process-image-cropper__stage[data-v-1ad67652]{grid-area:2/1}.solution-process-image-cropper__side[data-v-1ad67652]{grid-area:2/2;grid-template-rows:auto auto minmax(0,1fr) auto;align-self:stretch;gap:8px;overflow:auto}.solution-process-image-cropper__error[data-v-1ad67652]{grid-row:1;font-size:.76rem}.solution-process-image-cropper__tools[data-v-1ad67652],.solution-process-image-cropper__actions[data-v-1ad67652]{grid-template-columns:minmax(0,1fr);gap:6px;display:grid}.solution-process-image-cropper__tools[data-v-1ad67652]{grid-row:2;align-self:start}.solution-process-image-cropper__actions[data-v-1ad67652]{grid-row:4;align-self:end}.solution-process-image-cropper__tools button[data-v-1ad67652],.solution-process-image-cropper__actions button[data-v-1ad67652]{width:100%;min-height:34px;padding:0 10px}}.solution-process-uploader[data-v-1869649e]{border-top:1px solid #1b26361a;gap:10px;margin-top:16px;padding-top:14px;display:grid}.solution-process-uploader__input[data-v-1869649e]{display:none}.solution-process-uploader__header[data-v-1869649e]{justify-content:space-between;align-items:center;gap:12px;display:flex}.solution-process-uploader__header>div[data-v-1869649e]{gap:3px;min-width:0;display:grid}.solution-process-uploader__header strong[data-v-1869649e]{color:#1b2636;font-size:.92rem}.solution-process-uploader__header span[data-v-1869649e]{color:#667085;font-size:.78rem}.solution-process-uploader__actions[data-v-1869649e]{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.solution-process-uploader__error[data-v-1869649e]{color:#b42318;margin:0;font-size:.82rem}.solution-process-uploader__preview-list[data-v-1869649e]{flex-wrap:wrap;gap:10px;display:flex}.solution-process-uploader__preview[data-v-1869649e]{color:#667085;text-align:center;word-break:break-all;background:#f6f8fb;border:1px solid #1b26361f;border-radius:8px;place-items:center;width:92px;height:92px;margin:0;font-size:.72rem;display:grid;position:relative;overflow:hidden}.solution-process-uploader__preview img[data-v-1869649e]{object-fit:cover;width:100%;height:100%}.solution-process-uploader__remove[data-v-1869649e]{color:#1b2636;cursor:pointer;background:#ffffffeb;border:1px solid #1b263624;border-radius:999px;place-items:center;width:24px;height:24px;padding:0;display:grid;position:absolute;top:5px;right:5px}.solution-process-uploader__remove[data-v-1869649e]:disabled{cursor:not-allowed;opacity:.55}.question-tutor-inline-content__code[data-v-65fa15bf]{background:#315b731a;border-radius:4px;padding:1px 4px;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.92em}.question-tutor-message-content[data-v-82e9482e]{gap:8px;font-size:14px;line-height:1.62;display:grid}.question-tutor-message-content p[data-v-82e9482e],.question-tutor-message-content__heading[data-v-82e9482e],.question-tutor-message-content__list[data-v-82e9482e]{margin:0}.question-tutor-message-content__heading[data-v-82e9482e]{font-size:1em;line-height:1.5}.question-tutor-message-content__list[data-v-82e9482e]{gap:5px;padding-left:22px;display:grid}.question-tutor-message-content__code[data-v-82e9482e]{color:#eef6fb;white-space:pre;background:#12202d;border-radius:8px;max-width:100%;margin:0;padding:9px 10px;font-size:13px;line-height:1.55;overflow-x:auto}.question-tutor-message-content[data-v-82e9482e] .question-rich-text__formula--block{margin:8px 0;display:block;overflow-x:auto}.question-tutor-message-content[data-v-82e9482e] .question-rich-text__formula--inline{vertical-align:middle;max-width:100%;overflow-x:auto}.question-tutor[data-v-2878686d]{color:#1f2f3d;background:#fff;grid-template-rows:auto minmax(0,1fr) auto;gap:0;height:100%;min-height:0;display:grid;overflow:hidden}.question-tutor__header[data-v-2878686d],.question-tutor__title[data-v-2878686d],.question-tutor__message-head[data-v-2878686d],.question-tutor__composer-main[data-v-2878686d],.question-tutor__send[data-v-2878686d]{align-items:center;display:flex}.question-tutor__header[data-v-2878686d]{border-bottom:1px solid #324a601f;justify-content:space-between;gap:10px;min-height:54px;padding:10px 12px}.question-tutor__title[data-v-2878686d]{gap:8px;min-width:0}.question-tutor__embedded-status[data-v-2878686d]{color:#607182;min-width:0;font-size:12px;line-height:1.35}.question-tutor__embedded-status span[data-v-2878686d]{align-items:center;gap:7px;display:inline-flex}.question-tutor__embedded-status i[data-v-2878686d]{background:#4f8b6a;border-radius:50%;flex:none;width:7px;height:7px;box-shadow:0 0 0 3px #4f8b6a1f}.question-tutor__title strong[data-v-2878686d],.question-tutor__title span[data-v-2878686d]{display:block}.question-tutor__title strong[data-v-2878686d]{font-size:14px;line-height:1.25}.question-tutor__title span[data-v-2878686d]{color:#6b7b89;margin-top:2px;font-size:12px;line-height:1.25}.question-tutor__icon-button[data-v-2878686d],.question-tutor__send[data-v-2878686d]{color:#26394a;cursor:pointer;background:#fff;border:1px solid #324a6029;border-radius:8px}.question-tutor__icon-button[data-v-2878686d]{flex:none;justify-content:center;width:40px;height:40px}.question-tutor--embedded .question-tutor__header[data-v-2878686d]{background:#fff;min-height:48px;padding:4px 12px}.question-tutor__icon-button[data-v-2878686d]:disabled,.question-tutor__send[data-v-2878686d]:disabled{cursor:not-allowed;opacity:.58}.question-tutor__messages[data-v-2878686d]{background:#f6f8fa;flex-direction:column;gap:10px;min-height:0;padding:14px;display:flex;overflow-y:auto}.question-tutor__state[data-v-2878686d],.question-tutor__empty[data-v-2878686d]{color:#64748b;background:#fff;border-radius:8px;margin:0;padding:13px;font-size:13px}.question-tutor__empty[data-v-2878686d]{text-align:center;align-self:center;justify-items:center;gap:8px;width:min(360px,100%);margin:auto;display:grid}.question-tutor__empty strong[data-v-2878686d]{font-size:14px;font-weight:700}.question-tutor__state--error[data-v-2878686d]{color:#a43f3f;background:#fff4f2}.question-tutor__message[data-v-2878686d]{background:#fff;border:1px solid #324a601f;border-radius:8px;gap:6px;max-width:min(88%,720px);padding:10px 12px;display:grid}.question-tutor__message--user[data-v-2878686d]{background:#e9f6ef;border-color:#357d5829;align-self:flex-end}.question-tutor__message--assistant[data-v-2878686d]{align-self:flex-start}.question-tutor__message--pending[data-v-2878686d]{opacity:.88}.question-tutor__message--failed[data-v-2878686d]{background:#fff8f6;border-color:#a43f3f33}.question-tutor__message--failed>strong[data-v-2878686d]{color:#8f3434;font-size:14px}.question-tutor__message--failed>small[data-v-2878686d]{color:#786565;font-size:12px;line-height:1.5}.question-tutor__message-head[data-v-2878686d]{color:#607182;justify-content:space-between;gap:12px;font-size:12px}.question-tutor__message-head span[data-v-2878686d]{align-items:center;gap:5px;display:inline-flex}.question-tutor__message[data-v-2878686d] .question-rich-text{white-space:pre-wrap;word-break:break-word}.question-tutor__thinking[data-v-2878686d]{background:#f1f6f9;border:1px solid #315b731f;border-radius:8px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;min-width:min(360px,74vw);padding:10px;display:grid;position:relative;overflow:hidden}.question-tutor__thinking strong[data-v-2878686d],.question-tutor__thinking small[data-v-2878686d]{display:block}.question-tutor__thinking strong[data-v-2878686d]{color:#26394a;font-size:14px;line-height:1.25}.question-tutor__thinking small[data-v-2878686d]{color:#6b7b89;margin-top:3px;font-size:12px;line-height:1.35}.question-tutor__typing[data-v-2878686d]{align-items:center;gap:5px;min-height:23px;display:inline-flex}.question-tutor__typing span[data-v-2878686d]{background:#6f8292;border-radius:50%;width:7px;height:7px;animation:1s ease-in-out infinite question-tutor-dot-2878686d}.question-tutor__typing span[data-v-2878686d]:nth-child(2){animation-delay:.14s}.question-tutor__typing span[data-v-2878686d]:nth-child(3){animation-delay:.28s}.question-tutor__progress[data-v-2878686d]{background:#315b731a;height:2px;position:absolute;bottom:0;left:0;right:0;overflow:hidden}.question-tutor__progress[data-v-2878686d]:after{content:"";border-radius:inherit;background:#315b73;width:42%;animation:1.45s ease-in-out infinite question-tutor-progress-2878686d;position:absolute;top:0;bottom:0}.question-tutor__retry-button[data-v-2878686d],.question-tutor__failure-actions button[data-v-2878686d]{color:#26394a;min-height:34px;font:inherit;cursor:pointer;background:#fff;border:1px solid #324a6029;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:0 10px;font-size:13px;display:inline-flex}.question-tutor__retry-button[data-v-2878686d]{justify-self:start}.question-tutor__failure-actions[data-v-2878686d]{flex-wrap:wrap;gap:8px;display:flex}.question-tutor__retry-button[data-v-2878686d]:disabled,.question-tutor__failure-actions button[data-v-2878686d]:disabled{cursor:not-allowed;opacity:.58}.question-tutor__composer[data-v-2878686d]{background:#fff;border-top:1px solid #324a601f;gap:6px;padding:10px;display:grid}.question-tutor__composer-main[data-v-2878686d]{gap:8px}.question-tutor__composer-hint[data-v-2878686d]{color:#6b7b89;margin:0;font-size:12px;line-height:1.35}.question-tutor__input[data-v-2878686d]{resize:vertical;width:auto;min-width:0;min-height:44px;max-height:120px;color:inherit;background:#fff;border:1px solid #324a6029;border-radius:8px;flex:1 1 0;padding:10px 11px;line-height:1.45}.question-tutor__input[data-v-2878686d]:focus{border-color:#2f638561;outline:2px solid #2f638538}.question-tutor__send[data-v-2878686d]{color:#fff;white-space:nowrap;background:#315b73;flex:none;justify-content:center;gap:6px;min-width:96px;min-height:44px;padding:0 13px;font-weight:700;line-height:1}.question-tutor__send span[data-v-2878686d]{white-space:nowrap}.question-tutor__spin[data-v-2878686d]{animation:.8s linear infinite question-tutor-spin-2878686d}@keyframes question-tutor-spin-2878686d{to{transform:rotate(360deg)}}@keyframes question-tutor-dot-2878686d{0%,80%,to{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}@keyframes question-tutor-progress-2878686d{0%{left:-42%}55%{left:38%}to{left:100%}}@media (max-width:640px){.question-tutor__composer-main[data-v-2878686d]{align-items:stretch}.question-tutor__send[data-v-2878686d]{min-width:48px}.question-tutor__send span[data-v-2878686d]{display:none}}.question-tutor-dialog-entry[data-v-e85f4606]{display:inline-flex}.question-tutor-dialog-trigger[data-v-e85f4606]{color:#fff;min-height:38px;font:inherit;cursor:pointer;background:#315b73;border:1px solid #315b732e;border-radius:8px;justify-content:center;align-items:center;gap:7px;padding:0 13px;font-size:14px;font-weight:700;transition:background .18s ease-out,box-shadow .18s ease-out,opacity .18s ease-out;display:inline-flex;box-shadow:0 8px 18px #25465b29}.question-tutor-dialog-trigger[data-v-e85f4606]:hover:not(:disabled){background:#274d64;box-shadow:0 10px 22px #25465b38}.question-tutor-dialog-trigger[data-v-e85f4606]:focus-visible{outline-offset:2px;outline:3px solid #2563eb57}.question-tutor-dialog__context-toggle[data-v-e85f4606]:focus-visible{outline-offset:2px;outline:3px solid #2563eb57}.question-tutor-dialog__close[data-v-e85f4606]:focus-visible{outline-offset:2px;outline:3px solid #2563eb57}.question-tutor-dialog__divider[data-v-e85f4606]:focus-visible{outline-offset:2px;outline:3px solid #2563eb57}.question-tutor-dialog-trigger[data-v-e85f4606]:disabled{cursor:not-allowed;opacity:.58;box-shadow:none}.question-tutor-dialog-entry--sprite[data-v-e85f4606]{pointer-events:auto}.question-tutor-dialog-trigger--sprite[data-v-e85f4606]{color:#244d65;background:linear-gradient(145deg,#eef8fc 0%,#d9edf6 100%);border:2px solid #fffffff0;border-radius:22px 22px 22px 10px;width:58px;min-width:58px;height:58px;min-height:58px;padding:0;animation:2.8s ease-in-out infinite question-tutor-sprite-breathe-e85f4606;position:relative;box-shadow:0 12px 28px #224d653d,inset 0 0 0 1px #315b731f}.question-tutor-dialog-trigger--sprite[data-v-e85f4606]:hover:not(:disabled){background:linear-gradient(145deg,#f7fcfe 0%,#d5edf8 100%);box-shadow:0 14px 32px #224d654d,inset 0 0 0 1px #315b7329}.question-tutor-dialog-trigger__sprite[data-v-e85f4606]{background:#ffffffd1;border-radius:15px;place-items:center;width:42px;height:42px;display:grid;position:relative}.question-tutor-dialog-trigger__antenna[data-v-e85f4606]{background:#f59e0b;border:2px solid #fff;border-radius:50%;width:6px;height:6px;position:absolute;top:-7px;left:50%;transform:translate(-50%);box-shadow:0 0 0 1px #7a521124}.question-tutor-dialog-trigger__antenna[data-v-e85f4606]:after{content:"";background:#315b73;width:2px;height:5px;position:absolute;top:5px;left:50%;transform:translate(-50%)}.question-tutor-dialog-trigger__label[data-v-e85f4606]{color:#29465a;opacity:0;pointer-events:none;background:#fffffff5;border:1px solid #315b7324;border-radius:10px;width:max-content;max-width:150px;padding:7px 10px;font-size:13px;font-weight:700;transition:opacity .16s ease-out,transform .16s ease-out;position:absolute;top:50%;right:calc(100% + 9px);transform:translate(5px,-50%);box-shadow:0 8px 20px #25465b24}.question-tutor-dialog-trigger--sprite:hover .question-tutor-dialog-trigger__label[data-v-e85f4606]{opacity:1;transform:translateY(-50%)}.question-tutor-dialog-trigger--sprite:focus-visible .question-tutor-dialog-trigger__label[data-v-e85f4606]{opacity:1;transform:translateY(-50%)}.question-tutor-dialog-backdrop[data-v-e85f4606]{z-index:2200;background:#0b17227a;place-items:center;padding:20px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.question-tutor-dialog[data-v-e85f4606]{background:#f4f7f9;border:1px solid #355c7729;border-radius:12px;grid-template-rows:auto minmax(0,1fr);width:min(1180px,100%);height:min(880px,100dvh - 40px);min-height:560px;display:grid;overflow:hidden;box-shadow:0 28px 80px #08162247}.question-tutor-dialog__header[data-v-e85f4606]{background:#fff;border-bottom:1px solid #355c771f;justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;display:flex}.question-tutor-dialog__title[data-v-e85f4606],.question-tutor-dialog__actions[data-v-e85f4606],.question-tutor-dialog__context-toggle[data-v-e85f4606]{align-items:center;display:flex}.question-tutor-dialog__title[data-v-e85f4606]{color:#193044;gap:10px;min-width:0}.question-tutor-dialog__title p[data-v-e85f4606],.question-tutor-dialog__title h2[data-v-e85f4606]{margin:0}.question-tutor-dialog__title p[data-v-e85f4606]{color:#6b7b89;font-size:12px;line-height:1.2}.question-tutor-dialog__title h2[data-v-e85f4606]{font-size:18px;line-height:1.3}.question-tutor-dialog__actions[data-v-e85f4606]{gap:8px}.question-tutor-dialog__context-toggle[data-v-e85f4606],.question-tutor-dialog__close[data-v-e85f4606]{color:#26394a;cursor:pointer;background:#fff;border:1px solid #355c771f;border-radius:8px;min-height:40px;transition:background .16s ease-out,border-color .16s ease-out}.question-tutor-dialog__context-toggle[data-v-e85f4606]:hover,.question-tutor-dialog__close[data-v-e85f4606]:hover{background:#f3f7f9;border-color:#355c773d}.question-tutor-dialog__context-toggle[data-v-e85f4606]{font:inherit;justify-content:center;gap:6px;padding:0 11px;font-size:13px;font-weight:700}.question-tutor-dialog__close[data-v-e85f4606]{place-items:center;width:40px;height:40px;padding:0;display:inline-grid}.question-tutor-dialog__body[data-v-e85f4606]{min-height:0;padding:12px;display:grid}.question-tutor-dialog__body--side-by-side[data-v-e85f4606]{grid-template-columns:minmax(280px, var(--question-tutor-context-width)) 12px minmax(360px, 1fr)}.question-tutor-dialog__body--stacked[data-v-e85f4606]{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(var(--question-tutor-context-min-height), var(--question-tutor-context-height)) 12px minmax(0, 1fr)}.question-tutor-dialog__body--context-closed[data-v-e85f4606]{grid-template-rows:minmax(0,1fr);grid-template-columns:minmax(0,1fr);padding:0}.question-tutor-dialog__context[data-v-e85f4606],.question-tutor-dialog__chat[data-v-e85f4606]{background:#fff;border:1px solid #355c771f;border-radius:10px;min-width:0;min-height:0;overflow:auto}.question-tutor-dialog__context[data-v-e85f4606]{padding:14px}.question-tutor-dialog__chat[data-v-e85f4606]{border:0;border-radius:0;overflow:hidden}.question-tutor-dialog__body:not(.question-tutor-dialog__body--context-closed) .question-tutor-dialog__chat[data-v-e85f4606]{border-radius:10px}.question-tutor-dialog__divider[data-v-e85f4606]{cursor:col-resize;touch-action:none;place-items:center;min-width:12px;min-height:0;display:grid;position:relative}.question-tutor-dialog__body--stacked .question-tutor-dialog__divider[data-v-e85f4606]{cursor:row-resize;min-width:0;min-height:12px}.question-tutor-dialog__divider[data-v-e85f4606]:before{content:"";background:0 0;border-radius:6px;transition:background .15s ease-out;position:absolute;top:0;bottom:0;left:2px;right:2px}.question-tutor-dialog__divider[data-v-e85f4606]:after{content:"";position:absolute;top:0;bottom:0;left:-16px;right:-16px}.question-tutor-dialog__divider[data-v-e85f4606]:hover:before,.question-tutor-dialog__divider.is-dragging[data-v-e85f4606]:before{background:#315b7314}.question-tutor-dialog__divider[data-v-e85f4606]:focus-visible:before{background:#315b7314}.question-tutor-dialog__divider>span[data-v-e85f4606]{z-index:1;background:#315b7352;border-radius:999px;width:2px;height:64px;max-height:22%;position:relative}.question-tutor-dialog__body--stacked .question-tutor-dialog__divider>span[data-v-e85f4606]{width:64px;max-width:22%;height:2px;max-height:none}.question-tutor-dialog__body--stacked .question-tutor-dialog__divider[data-v-e85f4606]:after{top:-16px;bottom:-16px;left:0;right:0}@keyframes question-tutor-sprite-breathe-e85f4606{0%,to{box-shadow:0 12px 28px #224d653d,inset 0 0 0 1px #315b731f}50%{box-shadow:0 15px 32px #224d654d,inset 0 0 0 1px #315b7329}}@media (max-width:760px){.question-tutor-dialog-backdrop[data-v-e85f4606]{padding:0}.question-tutor-dialog[data-v-e85f4606]{border-radius:0;width:100%;height:100dvh;min-height:0}.question-tutor-dialog__header[data-v-e85f4606]{padding:max(10px, env(safe-area-inset-top)) 10px 10px}.question-tutor-dialog__body[data-v-e85f4606]{padding:8px}}@media (max-width:480px){.question-tutor-dialog__context-toggle span[data-v-e85f4606]{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.question-tutor-dialog__context-toggle[data-v-e85f4606]{width:40px;padding:0}.question-tutor-dialog-trigger--sprite[data-v-e85f4606]{border-radius:19px 19px 19px 9px;width:52px;min-width:52px;height:52px;min-height:52px}.question-tutor-dialog-trigger__sprite[data-v-e85f4606]{width:38px;height:38px}}@media (prefers-reduced-motion:reduce){.question-tutor-dialog-trigger[data-v-e85f4606],.question-tutor-dialog-trigger__label[data-v-e85f4606],.question-tutor-dialog__context-toggle[data-v-e85f4606],.question-tutor-dialog__close[data-v-e85f4606],.question-tutor-dialog__divider[data-v-e85f4606]:before{transition:none}.question-tutor-dialog-trigger--sprite[data-v-e85f4606]{animation:none}}.solution-process-review[data-v-afc865f8]{border-top:1px solid #1b26361a;gap:10px;margin-top:16px;padding-top:14px;display:grid}.solution-process-review__header[data-v-afc865f8]{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.solution-process-review__header>div[data-v-afc865f8]{gap:4px;min-width:0;display:grid}.solution-process-review__header strong[data-v-afc865f8]{color:#1b2636;font-size:.92rem}.solution-process-review__status[data-v-afc865f8]{color:#667085;font-size:.78rem}.solution-process-review__status.is-done[data-v-afc865f8]{color:#067647}.solution-process-review__status.is-error[data-v-afc865f8]{color:#b42318}.solution-process-review__status.is-pending[data-v-afc865f8]{color:#b54708}.solution-process-review__summary[data-v-afc865f8],.solution-process-review__error[data-v-afc865f8],.solution-process-review__message[data-v-afc865f8]{color:#475467;margin:0;font-size:.84rem;line-height:1.55}.solution-process-review__error[data-v-afc865f8],.solution-process-review__message.is-error[data-v-afc865f8]{color:#b42318}.solution-process-review__feedback[data-v-afc865f8]{gap:8px;display:grid}.solution-process-review__options[data-v-afc865f8]{flex-wrap:wrap;gap:8px;display:flex}.solution-process-review__option[data-v-afc865f8],.solution-process-review__submit[data-v-afc865f8]{color:#344054;min-height:34px;font:inherit;cursor:pointer;background:#fff;border:1px solid #1b263624;border-radius:8px;padding:0 12px;font-size:.82rem}.solution-process-review__option.is-selected[data-v-afc865f8]{color:#075985;background:#e0f2fe;border-color:#7dd3fc}.solution-process-review__option[data-v-afc865f8]:disabled,.solution-process-review__submit[data-v-afc865f8]:disabled{cursor:not-allowed;opacity:.6}.solution-process-review__textarea[data-v-afc865f8]{color:#1b2636;width:100%;min-height:56px;font:inherit;resize:vertical;background:#fff;border:1px solid #1b263624;border-radius:8px;padding:9px 10px;font-size:.86rem}.solution-process-review__actions[data-v-afc865f8]{justify-content:space-between;align-items:center;gap:10px;display:flex}.solution-process-review__submit[data-v-afc865f8]{color:#fff;background:#1769aa;border-color:#1769aa}html,body,#app{min-height:100%}.list-shell{box-sizing:border-box;height:100vh;height:100dvh;min-height:100vh;min-height:100dvh;max-height:100vh;-webkit-overflow-scrolling:touch;max-height:100dvh;overflow:hidden}.list-shell.exam-paper-shell--without-floating-toggle{--ep-shell-bottom-padding:calc(20px + env(safe-area-inset-bottom))}.list-shell.exam-paper-shell--without-floating-toggle.layout-landscape{--ep-shell-bottom-padding:calc(16px + env(safe-area-inset-bottom))}.list-shell .exam-paper-shell__frame{flex-direction:column;height:100%;min-height:0;display:flex}.list-shell .exam-paper-shell__content{-webkit-overflow-scrolling:touch;flex:auto;min-height:0;overflow:hidden auto}.list-content{flex:none;gap:max(10px,min(1.25vh,14px));min-height:min-content;padding-top:14px;padding-bottom:8px;overflow:visible}html.ep-device-phone .list-content{gap:8px;padding-top:8px;padding-bottom:6px}.list-shell.layout-landscape .list-content{gap:max(8px,min(1vh,12px));padding-top:8px;padding-bottom:4px}.list-shell .ep-icon-button{-webkit-backdrop-filter:none;box-shadow:none;transition:border-color .18s,background-color .18s}.list-shell .ep-icon-button--glass:hover{box-shadow:none;transform:none}.list-shell .ep-icon-button--glass:focus-visible{box-shadow:none;transform:none}.list-shell .ep-icon-button--primary{box-shadow:none}.section-block{flex-direction:column;gap:10px;display:flex}.list-content>.section-block:not(.history-section){flex-shrink:0}.history-section{flex:none;overflow:visible}.section-block__header{justify-content:space-between;align-items:end;gap:12px;display:flex}html.ep-device-phone .section-block__header,html.ep-device-phone .state-actions{flex-direction:column;align-items:flex-start}.solve-state-shell{touch-action:pan-y;justify-content:center;align-items:flex-start;min-height:calc(100dvh - 180px);padding-top:max(20px,min(4vh,48px));padding-bottom:16px;display:flex}.solve-state-card{border:1px solid var(--ep-border);width:min(720px,100%);box-shadow:none;background:#fffbf6f5;border-radius:28px;flex-direction:column;gap:16px;padding:22px;display:flex}.solve-state-card--error{border-color:#ae544338}.solve-state-card__icon{width:42px;height:42px;color:var(--ep-accent-strong);background:#355c771a;border-radius:14px;justify-content:center;align-items:center;display:inline-flex}.state-actions{gap:12px;display:flex}.state-description{color:var(--ep-muted);margin:0;line-height:1.6}.section-eyebrow{color:var(--ep-accent);letter-spacing:.18em;text-transform:uppercase;margin:0;font-size:.76rem;font-weight:700}.section-title,.solve-state-card h2{letter-spacing:-.04em;margin:0}.section-title{font-size:max(1.18rem,min(1.08rem + .5vw,1.42rem));line-height:1.2}.section-count{color:#34485b;background:#ffffffb8;border:1px solid #355c771f;border-radius:999px;align-items:center;min-height:34px;padding:0 12px;font-size:.88rem;display:inline-flex}@media (max-height:600px){.list-shell.exam-paper-shell--without-floating-toggle,.list-shell.exam-paper-shell--without-floating-toggle.layout-landscape{--ep-shell-bottom-padding:calc(12px + env(safe-area-inset-bottom))}.list-content{gap:8px;padding-top:6px;padding-bottom:4px}.section-block{gap:8px}.list-shell .ep-icon-button{border-radius:14px;min-height:42px;padding:10px 14px}.list-shell .ep-icon-button--icon-only{width:44px;min-width:44px;padding:0}.section-count{min-height:32px;padding:0 10px}.solve-state-shell{min-height:calc(100dvh - 150px);padding-top:12px;padding-bottom:10px}.solve-state-card{gap:14px;padding:20px}}@media (max-width:720px){.list-content{padding-top:10px;padding-bottom:8px}.solve-state-card{border-radius:24px;padding:18px}.section-block__header,.state-actions{flex-direction:column;align-items:flex-start}}@media (max-width:480px),(orientation:landscape) and (max-height:420px){.list-shell{height:100vh;height:100dvh;min-height:100vh;min-height:100dvh;max-height:100vh;-webkit-overflow-scrolling:touch;max-height:100dvh;overflow-y:hidden}.list-shell .exam-paper-shell__frame,.list-shell .exam-paper-shell__content{height:100%;min-height:0}.list-shell .exam-paper-shell__content{overflow:hidden auto}.list-content{flex:none;gap:8px;min-height:auto;padding-top:6px;padding-bottom:8px;overflow:visible}.history-section,.history-grid{flex:none;min-height:auto;overflow:visible}.section-block{gap:8px}}.paper-grid{grid-template-columns:1fr;gap:16px;display:grid}html.ep-device-wide .list-shell.layout-landscape .paper-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.history-grid{scrollbar-gutter:auto;flex:none;grid-auto-rows:max-content;align-content:start;align-items:start;padding-bottom:0;padding-right:0;overflow:visible}.history-grid::-webkit-scrollbar{width:10px}.history-grid::-webkit-scrollbar-track{background:#355c7714;border-radius:999px}.history-grid::-webkit-scrollbar-thumb{background:#355c773d;border-radius:999px}.paper-card,.empty-card{border:1px solid var(--ep-border);box-shadow:none;touch-action:pan-y;background:#fffbf6f5;border-radius:28px}.paper-card{flex-direction:column;gap:10px;padding:16px;display:flex}.paper-card--featured{background:#fffcf7fa}.paper-card__head,.paper-card__footer{justify-content:space-between;align-items:center;gap:12px;display:flex}html.ep-device-phone .paper-card__head,html.ep-device-phone .paper-card__footer{flex-direction:column;align-items:flex-start}.paper-card__subject,.paper-card__metric,.paper-card__meta{align-items:center;gap:8px;display:inline-flex}.paper-card__subject{color:var(--ep-accent);letter-spacing:.16em;text-transform:uppercase;font-size:.76rem;font-weight:700}.paper-card__metric{color:#34485b;background:#ffffffb3;border:1px solid #355c771a;border-radius:999px;min-height:30px;padding:0 10px;font-size:.9rem}.paper-card__score{background:#ffffffc2;border:1px solid #355c771f;border-radius:16px;flex-direction:column;align-items:flex-end;gap:4px;min-width:0;padding:9px 12px;display:inline-flex}.paper-card__score-main{align-items:center;gap:8px;font-size:1rem;font-weight:700;line-height:1.1;display:inline-flex}.paper-card__score-sub{color:#35485bc2;text-align:right;white-space:nowrap;font-size:.78rem;line-height:1.25}.paper-card__score--high{color:#2c6c45;background:#eef8f2f0;border-color:#42825c38}.paper-card__score--high .paper-card__score-sub{color:#2c6c45c7}.paper-card__score--mid{color:#8a5b1a;background:#fef8ebf5;border-color:#b6823c3d}.paper-card__score--mid .paper-card__score-sub{color:#8a5b1ac7}.paper-card__score--low{color:#983b2d;background:#fdf1eff5;border-color:#ae54433d}.paper-card__score--low .paper-card__score-sub{color:#983b2dc7}.paper-card__score--neutral{color:#355c77}.paper-card__score--neutral .paper-card__score-sub{color:#355c77c2}html.ep-device-phone .paper-card__metric,html.ep-device-phone .paper-card__tag{min-height:28px;padding:0 9px}html.ep-device-phone .paper-card__score{align-items:flex-start;width:100%}html.ep-device-phone .paper-card__score-sub{text-align:left;white-space:normal}.paper-card__description,.intro-card__text{color:var(--ep-muted);margin:0;font-size:.92rem;line-height:1.45}.paper-card__tags{flex-wrap:wrap;gap:6px;display:flex}.paper-card__tag{color:#34485b;background:#ffffffb8;border:1px solid #355c771f;border-radius:999px;align-items:center;min-height:30px;padding:0 10px;font-size:.88rem;display:inline-flex}.paper-card__meta{color:var(--ep-muted);line-height:1.5}.paper-card h2,.empty-card h2{letter-spacing:-.04em;margin:0}.empty-card{padding:18px}@media (max-height:600px){.paper-grid{gap:12px}.paper-card{gap:10px;padding:16px}.paper-card__metric,.paper-card__tag{min-height:28px;padding:0 9px}.paper-card__description,.intro-card__text{font-size:.9rem;line-height:1.4}.paper-card__score{border-radius:14px;padding:8px 10px}.paper-card__score-main{font-size:.94rem}.paper-card__score-sub{font-size:.74rem}}@media (min-width:1100px){.paper-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.history-grid{scrollbar-gutter:auto;padding-right:2px}.paper-card,.empty-card{border-radius:24px;padding:18px}}.directory-trigger.ep-icon-button{width:52px;min-width:52px;min-height:52px;color:var(--ep-accent-strong);background:#fffcf7fa;border-color:#355c772e;border-radius:999px;padding:0;box-shadow:0 8px 18px #18222d14}.directory-popover{z-index:var(--solve-z-directory-overlay);top:calc(70px + env(safe-area-inset-top));left:calc(12px + env(safe-area-inset-left));width:min(360px, calc(100vw - 24px - env(safe-area-inset-left) - env(safe-area-inset-right)));height:calc(100vh - 104px - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100dvh - 104px - env(safe-area-inset-top) - env(safe-area-inset-bottom));flex-direction:column;min-height:0;max-height:640px;display:flex;position:fixed}.directory-card{width:100%;min-height:0;padding:var(--solve-panel-padding);border:1px solid var(--ep-border);border-radius:var(--solve-panel-radius);background:#fffcf7fa;flex-direction:column;flex:auto;display:flex;overflow:hidden;box-shadow:0 18px 36px #18222d1a}.directory-card__header{border-bottom:1px solid #355c7714;flex-direction:row;flex:none;justify-content:space-between;align-items:center;gap:12px;min-height:44px;padding-bottom:10px;display:flex}.directory-card__title{min-width:0}.directory-card__header .ep-icon-button{flex:none}.directory-card__list{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;flex-direction:column;flex:auto;gap:8px;min-height:0;padding-top:10px;padding-right:2px;display:flex;overflow:hidden auto}.directory-card__empty{min-height:120px;color:var(--ep-muted);text-align:center;flex:auto;justify-content:center;align-items:center;display:flex}.directory-group,.sub-list{flex-direction:column;gap:8px;min-height:0;display:flex}.directory-group{flex:none;min-width:0}.directory-item,.sub-item{box-sizing:border-box;text-align:left;cursor:pointer;width:100%;height:auto;min-height:50px;color:inherit;font:inherit;-webkit-tap-highlight-color:transparent;background:#ffffffd1;border:1px solid #355c7714;border-radius:16px;flex:none;align-items:center;gap:10px;padding:10px 12px;line-height:1.35;display:flex}.directory-item.answered,.sub-item.answered{background:#e9f3f8e6}.directory-body{flex-direction:column;flex:auto;gap:4px;min-width:0;display:flex}.directory-type{color:var(--ep-accent);font-size:.8rem}.directory-title,.sub-item span:last-child{text-overflow:ellipsis;min-width:0;overflow:hidden}.directory-title{white-space:normal;overflow-wrap:anywhere;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.35;display:-webkit-box}.sub-item span:last-child{white-space:normal;overflow-wrap:anywhere}.directory-item__icon{flex:none}.sub-list{padding-left:14px}.sub-dot{background:#355c7724;border-radius:999px;flex:none;width:10px;height:10px}.solve-shell.layout-landscape .directory-popover{top:calc(62px + env(safe-area-inset-top));height:calc(100vh - 88px - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100dvh - 88px - env(safe-area-inset-top) - env(safe-area-inset-bottom));max-height:520px}@media (max-width:720px){.directory-trigger.ep-icon-button{width:48px;min-width:48px;min-height:48px}.directory-popover{top:calc(58px + env(safe-area-inset-top));left:calc(8px + env(safe-area-inset-left));width:min(320px, calc(100vw - 16px - env(safe-area-inset-left) - env(safe-area-inset-right)));height:calc(100vh - 74px - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100dvh - 74px - env(safe-area-inset-top) - env(safe-area-inset-bottom));max-height:none}.directory-card{border-radius:20px}.directory-item,.sub-item{min-height:48px;padding:10px 12px}}@media (orientation:landscape) and (max-height:420px){.directory-trigger.ep-icon-button{width:42px;min-width:42px;min-height:42px}.directory-popover,.solve-shell.layout-landscape .directory-popover{top:calc(48px + env(safe-area-inset-top));left:calc(6px + env(safe-area-inset-left));width:min(300px, calc(100vw - 12px - env(safe-area-inset-left) - env(safe-area-inset-right)));height:calc(100vh - 56px - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100dvh - 56px - env(safe-area-inset-top) - env(safe-area-inset-bottom));max-height:none}.directory-card{border-radius:16px;padding:10px}.directory-card__header{min-height:38px;padding-bottom:8px}.directory-card__list{gap:6px;padding-top:8px}.directory-group,.sub-list{gap:6px}.directory-item,.sub-item{border-radius:12px;gap:8px;height:auto;min-height:46px;padding:8px 10px}.directory-title{-webkit-line-clamp:2}.sub-list{padding-left:10px}}.submit-overlay{z-index:calc(var(--solve-z-directory-overlay) + 20);background:#f8f3e9c2;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.submit-overlay__card{text-align:center;background:#fffcf7fa;border:1px solid #355c771f;border-radius:28px;flex-direction:column;align-items:center;gap:14px;width:min(420px,100%);padding:28px 24px;display:flex;box-shadow:0 18px 32px #18222d1f}.submit-overlay__card h2{letter-spacing:-.04em;margin:0}.submit-overlay__spinner{border:3px solid #355c7729;border-top-color:#355c77;border-radius:999px;width:42px;height:42px;animation:.78s linear infinite submit-spin}@keyframes submit-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width:720px){.submit-overlay__card{border-radius:24px;padding:24px 18px}}@media (prefers-reduced-motion:reduce){.submit-overlay__spinner{animation-duration:1.6s}}.result-video-list[data-v-b612a213]{flex-wrap:wrap;gap:8px;display:flex}.result-video-button[data-v-b612a213]{color:#355c77;background:#fff;border:1px solid #355c7738;border-radius:999px;padding:7px 12px;font-size:14px;font-weight:600}.result-video-preview[data-v-b612a213]{z-index:3000;background:#0f172ab3;place-items:center;padding:16px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.result-video-preview__panel[data-v-b612a213]{background:#fff;border-radius:12px;gap:10px;width:min(920px,100%);max-height:min(720px,92vh);padding:12px;display:grid;box-shadow:0 20px 70px #0f172a42}.result-video-preview__header[data-v-b612a213]{justify-content:space-between;align-items:center;gap:12px;display:flex}.result-video-preview__header button[data-v-b612a213]{color:#0f172a;background:#0f172a14;border:0;border-radius:999px;width:32px;height:32px;font-size:22px;line-height:1}.result-video-preview__player[data-v-b612a213]{background:#000;border-radius:8px;width:100%;max-height:calc(92vh - 76px)}.question-tutor-floating-host[data-v-b649a570]{z-index:9;pointer-events:none;justify-content:flex-end;align-self:stretch;height:0;margin-top:auto;display:flex;position:sticky;bottom:14px;right:14px}.question-tutor-context-copy[data-v-b649a570]{gap:14px;display:grid}.question-tutor-context-copy__header[data-v-b649a570]{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.question-tutor-context-copy__header h3[data-v-b649a570],.question-tutor-context-copy__header p[data-v-b649a570]{margin:0}.question-tutor-context-copy__block[data-v-b649a570]{line-height:1.68}.question-tutor-context-copy__answer[data-v-b649a570]{background:#e9f3f8b8;border:1px solid #355c771a;border-radius:8px;gap:4px;padding:10px 12px;display:grid}.question-tutor-context-copy__answer strong[data-v-b649a570]{color:#26394a;font-size:13px}.question-tutor-context-copy__answer span[data-v-b649a570]{color:#607182;white-space:pre-wrap;word-break:break-word;line-height:1.55}.header-content[data-v-36a1745c]{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;display:grid}.header-main[data-v-36a1745c]{grid-column:1;min-width:0}.score-chip[data-v-36a1745c]{grid-column:2;justify-self:center}.header-stats[data-v-36a1745c]{flex-wrap:wrap;grid-column:3;justify-content:flex-end;justify-self:end;align-items:center;gap:8px;display:flex}.score-chip[data-v-36a1745c]{text-align:center;background:linear-gradient(145deg,#f5f8fafa,#e9f1f6f0);border:1px solid #2b485d1f;border-radius:22px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-width:122px;min-height:74px;padding:10px 16px;display:inline-flex;box-shadow:inset 0 1px #ffffffe0,0 10px 22px #1a26300f}.score-chip__label[data-v-36a1745c]{letter-spacing:.08em;text-transform:uppercase;color:#182f40b3;font-size:.74rem;font-weight:700}.score-chip__value[data-v-36a1745c]{letter-spacing:-.05em;font-size:1.78rem;font-weight:800;line-height:1}.score-chip--high[data-v-36a1745c]{color:#2c6c45;background:linear-gradient(145deg,#f0f9f3fa,#e2f3e8f0);border-color:#42825c2e}.score-chip--high .score-chip__label[data-v-36a1745c]{color:#2c6c45b3}.score-chip--mid[data-v-36a1745c]{color:#8a5b1a;background:linear-gradient(145deg,#fffaf0fa,#f8eedbf0);border-color:#b6823c33}.score-chip--mid .score-chip__label[data-v-36a1745c]{color:#8a5b1ab8}.score-chip--low[data-v-36a1745c]{color:#983b2d;background:linear-gradient(145deg,#fdf4f2fa,#f6e5e1f0);border-color:#ae54432e}.score-chip--low .score-chip__label[data-v-36a1745c]{color:#983b2db8}.score-chip--neutral[data-v-36a1745c]{color:#17364c}.stat-badge[data-v-36a1745c]{color:var(--ep-accent-strong);white-space:nowrap;background:#355c7714;border-radius:999px;align-items:center;gap:4px;padding:4px 10px;font-size:.78rem;display:inline-flex}.stat-badge--standard-score[data-v-36a1745c]{color:#855515;background:#b6823c24}.stat-badge__icon[data-v-36a1745c]{align-items:center;display:inline-flex}.stat-badge__label[data-v-36a1745c]{font-weight:600}@media (max-width:720px){.score-chip[data-v-36a1745c]{min-width:110px;min-height:66px;padding:8px 14px}.score-chip__value[data-v-36a1745c]{font-size:1.48rem}}@media (max-width:480px){.header-content[data-v-36a1745c]{grid-template-columns:1fr;gap:8px}.header-main[data-v-36a1745c],.score-chip[data-v-36a1745c],.header-stats[data-v-36a1745c]{grid-column:1}.score-chip[data-v-36a1745c]{justify-self:center}.header-stats[data-v-36a1745c]{justify-content:center;justify-self:stretch;width:100%}.score-chip[data-v-36a1745c]{border-radius:18px;min-width:102px;min-height:60px;padding:8px 12px}.score-chip__label[data-v-36a1745c]{font-size:.66rem}.score-chip__value[data-v-36a1745c]{font-size:1.28rem}.stat-badge[data-v-36a1745c]{padding:3px 8px;font-size:.72rem}}