:root{font-family:Inter,SF Pro Display,PingFang SC,Microsoft YaHei,sans-serif;color:#16181d;background:#f7f8fa;font-synthesis:none;text-rendering:optimizeLegibility;--blue: #1769e8;--blue-dark: #0f5bd7;--blue-soft: #eef5ff;--line: #e5e8ee;--muted: #6a7280;--green: #13a463;--green-soft: #eaf8f1;--red: #d94747;--red-soft: #fff1f1}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:#f7f8fa;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button,a{color:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:408px minmax(0,1fr);background:#fff}.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;border-right:1px solid var(--line);background:#fafbfc;z-index:5}.brand{height:150px;display:flex;align-items:center;gap:16px;padding:0 44px;color:var(--blue);font-size:36px;font-weight:760;letter-spacing:-1px;border-bottom:1px solid var(--line)}.mobile-permission{display:none}.module-nav{flex:1;overflow-y:auto;padding:0 0 10px}.module-item{width:100%;min-height:164px;border:0;border-left:5px solid transparent;border-bottom:1px solid #edf0f4;background:transparent;display:grid;grid-template-columns:47px minmax(0,1fr) 34px;gap:18px;align-items:start;padding:30px 28px 25px 34px;text-align:left;cursor:pointer;transition:background .16s ease,border-color .16s ease}.module-item:hover{background:#f2f6fc}.module-item:focus-visible{outline:3px solid #9fc3ff;outline-offset:-3px}.module-item.is-active{background:#f1f6ff;border-left-color:var(--blue)}.module-number{width:47px;height:47px;display:grid;place-items:center;border-radius:9px;background:#edf0f4;color:#252a31;font-size:27px;line-height:1}.is-active .module-number{background:var(--blue);color:#fff;box-shadow:0 4px 11px #1769e83d}.module-copy{min-width:0;display:flex;flex-direction:column;gap:7px}.module-copy strong{font-size:23px;line-height:1.3;font-weight:650;white-space:nowrap}.module-copy>span:not(.mini-progress){color:#5f6877;font-size:18px}.is-active .module-copy strong{color:var(--blue)}.mini-progress{width:100%;height:5px;margin-top:10px;overflow:hidden;border-radius:999px;background:#e0e5ec}.mini-progress>span{display:block;height:100%;background:var(--blue);border-radius:inherit;transition:width .22s ease}.module-item.is-active .mini-progress>span{background:var(--green)}.module-state{width:31px;height:31px;border:2px solid #d7dce4;border-radius:50%;color:var(--green);margin-top:3px}.module-state.is-complete{border:0}.sidebar-bottom{border-top:1px solid var(--line);background:#fff;padding:17px 31px 22px}.permission-button{width:100%;border:0;background:#f6f7f9;border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:9px;color:#5c6572;font-size:14px;cursor:pointer}.permission-button span{flex:1;text-align:left}.permission-button:hover{background:#eef1f5;color:#22262d}.total-progress{width:100%;display:grid;grid-template-columns:37px minmax(0,1fr) 24px;align-items:center;gap:15px;padding:22px 5px 0;border:0;background:transparent;text-align:left;cursor:pointer}.total-progress>span{display:flex;flex-direction:column;gap:5px}.total-progress strong{font-size:20px}.total-progress small{color:#68707e;font-size:16px}.main-panel{min-width:0;background:#fff}.topbar{position:sticky;top:0;z-index:4;height:150px;display:grid;grid-template-columns:170px minmax(240px,1fr) 220px;align-items:center;gap:24px;padding:0 clamp(38px,3.6vw,72px);border-bottom:1px solid var(--line);background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.question-count{font-size:23px;color:#20242a;white-space:nowrap}.question-count strong{color:var(--blue);font-size:31px}.overall-progress{height:10px;border-radius:999px;overflow:hidden;background:#e5e9ef}.overall-progress span{display:block;height:100%;background:var(--blue);border-radius:inherit;transition:width .26s ease}.review-button{justify-self:end;display:flex;align-items:center;gap:10px;border:0;background:transparent;font-size:20px;cursor:pointer;padding:12px 5px}.review-button:hover,.review-button.is-saved{color:var(--blue)}.review-button:focus-visible,.text-action:focus-visible{outline:3px solid #a8c8fb;outline-offset:3px;border-radius:6px}.question-stage{width:min(calc(100% - 110px),1460px);margin-left:clamp(38px,3.6vw,72px);padding:clamp(48px,5vh,70px) 0 56px}.question-block{margin-bottom:65px}.question-heading{display:grid;grid-template-columns:78px minmax(0,1fr);gap:10px;align-items:start}.q-mark{color:var(--blue);font-size:54px;line-height:1.12;font-weight:800;letter-spacing:-2px}.question-heading h1{margin:0;max-width:1150px;font-size:clamp(31px,2.45vw,46px);line-height:1.55;letter-spacing:-.5px;font-weight:720}.question-hints{display:none;margin:17px 0 0 89px;gap:10px;flex-wrap:wrap}.question-hints span{color:#707987;background:#f4f6f8;border-radius:6px;padding:5px 10px;font-size:14px}.answer-list{border:0;padding:0;margin:0;display:grid;gap:22px}.answer-option{min-height:126px;display:grid;grid-template-columns:34px 43px minmax(0,1fr) 28px;align-items:center;gap:14px;padding:22px 31px;border:2px solid #e1e5eb;border-radius:14px;background:#fff;cursor:pointer;transition:border-color .13s ease,background .13s ease,box-shadow .13s ease}.answer-option:hover{border-color:#aec9ef;box-shadow:0 5px 18px #194e9112}.answer-option.is-selected{border-color:var(--blue);background:#f3f7ff;color:#1158c1}.answer-option.is-correct{border-color:var(--green);background:var(--green-soft);color:#087346}.answer-option.is-wrong{border-color:var(--red);background:var(--red-soft);color:#b62f2f}.answer-option input{width:30px;height:30px;margin:0;accent-color:var(--blue);cursor:pointer}.answer-option:has(input:focus-visible){outline:3px solid #9fc3ff;outline-offset:2px}.option-letter{font-size:26px;line-height:1.3;font-weight:650}.option-copy{font-size:clamp(20px,1.55vw,29px);line-height:1.45;letter-spacing:-.1px}.option-status{justify-self:end}.submit-button,.primary-button{width:min(780px,68%);min-height:96px;margin:58px auto 0;display:flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:10px;background:var(--blue);color:#fff;font-size:31px;font-weight:680;cursor:pointer;box-shadow:0 6px 16px #1769e82e;transition:background .15s ease,transform .15s ease}.submit-button:hover:not(:disabled),.primary-button:hover:not(:disabled){background:var(--blue-dark);transform:translateY(-1px)}.submit-button:disabled,.primary-button:disabled{background:#b9c7dc;cursor:not-allowed;box-shadow:none}.submit-button:focus-visible,.primary-button:focus-visible{outline:4px solid #a8c8fb;outline-offset:4px}.answer-actions{margin-top:58px;display:flex;flex-direction:column;align-items:center}.answer-actions .submit-button{margin-top:0}.learn-button{min-height:48px;margin-top:12px;padding:0 18px;display:inline-flex;align-items:center;gap:8px;border:0;border-radius:8px;background:transparent;color:#5e6a79;font-size:17px;font-weight:620;cursor:pointer}.learn-button:hover{color:var(--blue);background:var(--blue-soft)}.learn-button:focus-visible{outline:3px solid #a8c8fb;outline-offset:2px}.feedback-card{margin:38px 0 0;border:1px solid #b9e8d2;border-radius:14px;padding:25px 27px;background:var(--green-soft);display:grid;grid-template-columns:46px minmax(0,1fr) auto;gap:18px;align-items:center}.feedback-card.is-wrong{background:var(--red-soft);border-color:#f0c3c3}.feedback-card.is-learning{background:var(--blue-soft);border-color:#bcd6fb}.feedback-icon{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff}.feedback-card.is-wrong .feedback-icon{background:var(--red)}.feedback-card.is-learning .feedback-icon{background:var(--blue)}.feedback-copy strong{font-size:22px}.feedback-copy p{margin:8px 0 0;font-size:17px;line-height:1.65;color:#424a55}.next-button{min-height:48px;border:0;border-radius:9px;padding:0 18px;display:flex;align-items:center;gap:7px;background:var(--blue);color:#fff;font-weight:650;cursor:pointer}.question-footer-nav{margin:28px 0 18px;display:flex;justify-content:center;align-items:center;gap:24px;color:#7a8391}.question-footer-nav button{border:0;background:transparent;color:#687382;display:flex;align-items:center;gap:5px;cursor:pointer}.question-footer-nav button:hover:not(:disabled){color:var(--blue)}.question-footer-nav button:disabled{opacity:.35;cursor:not-allowed}.question-footer-nav span{font-size:14px}.source-card{position:relative;min-height:138px;margin-top:16px;border:2px solid #e5e9ef;border-radius:14px;background:#fff;overflow:hidden;outline:none;scroll-margin-top:170px}.source-card:focus-visible{border-color:#78aafa;box-shadow:0 0 0 4px #1769e81f}.evidence-toggle{width:100%;min-height:134px;display:grid;grid-template-columns:54px minmax(0,1fr) auto;align-items:center;gap:20px;padding:22px 28px;border:0;background:#fff;text-align:left;cursor:pointer}.evidence-toggle:hover{background:#fbfcff}.evidence-toggle:focus-visible{outline:3px solid #a8c8fb;outline-offset:-4px}.source-card.is-expanded .evidence-toggle{border-bottom:1px solid #e5e9ef}.source-icon{width:47px;height:47px;display:grid;place-items:center;color:var(--blue);background:#edf5ff;border-radius:9px}.source-meta{min-width:0;display:flex;align-items:center;gap:22px}.source-tags{flex:0 0 auto;display:flex;align-items:center;gap:9px}.tag{display:inline-flex;align-items:center;border-radius:999px;padding:8px 14px;font-size:15px;white-space:nowrap}.tag-rule{color:#088454;background:#e7f7ef}.tag-view{color:#7c5d00;background:#fff4cf}.tag-method{color:#6252b8;background:#f0edff}.tag-experience{color:#a35400;background:#fff0dd}.tag-history{color:#68707e;background:#eef0f3}.tag-topic{color:#2468c8;background:#eaf2ff}.source-title{min-width:0;display:flex;flex-direction:column;gap:7px}.source-title strong{font-size:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.source-title span{color:#79818d;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.expand-label{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-size:16px;font-weight:650;white-space:nowrap}.evidence-content{padding:26px 28px 28px 102px;display:grid;gap:18px;background:#fbfcfe}.answer-reason,.evidence-text{border-radius:11px;padding:18px 20px}.answer-reason{border:1px solid #dde4ed;background:#fff}.answer-reason>span{color:#5c6572;font-size:14px;font-weight:700}.answer-reason p,.evidence-text p{margin:9px 0 0;color:#343b45;font-size:17px;line-height:1.75}.evidence-text{border-left:4px solid var(--blue);background:#edf5ff}.evidence-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.evidence-heading strong{display:inline-flex;align-items:center;gap:7px;color:#155abe;font-size:16px}.evidence-heading span{color:#7a8492;font-size:12px;white-space:nowrap}.evidence-source-row{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-top:18px;border-top:1px solid #e2e6eb}.document-source{min-width:0;display:flex;flex-direction:column;gap:5px}.document-source>span{color:#79818d;font-size:12px}.document-source strong{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.document-source small{color:#79818d;font-size:12px;line-height:1.5}.source-actions{display:flex;gap:19px;align-items:center;flex:0 0 auto}.text-action{border:0;background:transparent;color:var(--blue);display:inline-flex;align-items:center;gap:6px;font-size:19px;font-weight:620;cursor:pointer;text-decoration:none;white-space:nowrap;padding:7px 0}.text-action:hover{color:var(--blue-dark)}.full-source-link{color:#5f6b7a;font-size:16px;font-weight:580}.locked-inline{display:inline-flex;gap:7px;align-items:center;color:#8d5e18;background:#fff7e8;border-radius:7px;padding:10px 12px;width:fit-content;font-size:13px;text-decoration:none}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:grid;place-items:center;padding:25px;background:#11182775}.modal-card{width:min(720px,100%);max-height:calc(100vh - 50px);overflow:auto;position:relative;border-radius:18px;padding:38px;background:#fff;box-shadow:0 30px 80px #0f172a3d}.modal-close{position:absolute;top:20px;right:20px;width:38px;height:38px;display:grid;place-items:center;border:0;border-radius:8px;background:#f1f3f6;cursor:pointer}.modal-kicker{color:var(--blue);display:flex;align-items:center;gap:7px;font-size:15px;font-weight:700}.modal-card h2{margin:14px 45px 10px 0;font-size:29px}.modal-lead,.media-note{color:#626b78;line-height:1.65}.permission-list{display:grid;gap:13px;margin-top:25px}.permission-list article{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:12px;align-items:start;border:1px solid #e4e7ec;border-radius:11px;padding:17px}.permission-list article>svg{color:#a36816;margin-top:2px}.permission-list strong{font-size:16px}.permission-list p{margin:6px 0 0;color:#6d7580;line-height:1.5;font-size:14px}.permission-list a{align-self:center;display:flex;align-items:center;gap:5px;color:var(--blue);text-decoration:none;white-space:nowrap;font-size:14px}.missing-materials{margin-top:18px;display:flex;gap:9px;align-items:flex-start;border-radius:9px;padding:13px 14px;background:#f5f7fa;color:#626b77;line-height:1.55;font-size:14px}.media-frame{width:100%;min-height:360px;margin-top:22px;display:grid;place-items:center;overflow:hidden;border:1px solid #e2e5ea;border-radius:12px;background:#f5f6f8}.media-frame img,.media-frame iframe{display:block;width:100%;min-height:360px;border:0;object-fit:contain}.media-fallback{max-width:390px;display:flex;flex-direction:column;align-items:center;gap:9px;padding:32px;color:#646d7a;text-align:center}.media-fallback svg{color:#9a6417}.media-fallback strong{color:#333942;font-size:18px}.media-fallback span{font-size:14px;line-height:1.55}.media-actions{display:flex;gap:12px;flex-wrap:wrap}.primary-link,.secondary-link{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:8px;padding:0 16px;text-decoration:none;font-weight:650}.primary-link{background:var(--blue);color:#fff}.secondary-link{border:1px solid #d9dee6;color:#343a43}.results-panel{width:min(100% - 76px,1050px);margin:0 auto;padding:90px 0 60px;text-align:center}.results-kicker{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-weight:700}.results-panel h1{margin:23px 0 10px;font-size:82px;letter-spacing:-4px}.results-panel>p{margin:0 auto;max-width:680px;color:#697280;font-size:18px;line-height:1.7}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:42px 0 30px}.result-stats article{border:1px solid #e2e6ec;border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:7px}.result-stats strong{font-size:35px;color:var(--blue)}.result-stats span{color:#6d7581}.result-actions{display:flex;justify-content:center;gap:14px}.result-actions .primary-button{width:auto;min-height:54px;margin:0;padding:0 24px;font-size:18px}.secondary-button{min-height:54px;border:1px solid #d8dde5;border-radius:9px;padding:0 24px;background:#fff;font-weight:650;cursor:pointer}.scope-note{margin:42px auto 0;max-width:750px;display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:12px;background:#f4f7fb;text-align:left}.scope-note svg{color:var(--blue);flex:0 0 auto}.scope-note strong{font-size:16px}.scope-note p{margin:5px 0 0;color:#68717e;line-height:1.6}@media(max-width:1260px){.app-shell{grid-template-columns:292px minmax(0,1fr)}.brand{padding:0 30px;font-size:28px}.module-item{min-height:145px;grid-template-columns:42px minmax(0,1fr) 28px;gap:13px;padding:25px 20px 22px 25px}.module-number{width:42px;height:42px;font-size:23px}.module-copy strong{font-size:19px}.topbar{grid-template-columns:150px minmax(180px,1fr) 160px;padding-inline:36px}.review-button{font-size:17px}.question-stage{width:min(100% - 58px,1120px)}.evidence-toggle{grid-template-columns:48px minmax(0,1fr) auto}.source-meta{align-items:flex-start;flex-direction:column;gap:10px}.evidence-content{padding-left:96px}.evidence-source-row{align-items:flex-start;flex-direction:column}}@media(max-width:820px){.app-shell{display:block;min-height:100dvh}.sidebar{position:sticky;top:0;width:100%;height:auto;border-right:0;border-bottom:1px solid var(--line);background:#fff}.brand{height:64px;padding:0 18px;gap:8px;font-size:23px;border-bottom:1px solid var(--line)}.brand svg{width:26px}.mobile-permission{margin-left:auto;position:relative;width:39px;height:39px;display:grid;place-items:center;border:0;border-radius:9px;background:#f2f5f9;color:#596373;cursor:pointer}.mobile-permission svg{width:20px}.mobile-permission b{position:absolute;top:-3px;right:-3px;min-width:17px;height:17px;padding:0 4px;display:grid;place-items:center;border-radius:999px;background:var(--blue);color:#fff;font-size:10px;line-height:1}.module-nav{display:flex;overflow-x:auto;padding:9px 12px;gap:8px;scrollbar-width:none}.module-nav::-webkit-scrollbar{display:none}.module-item{min-width:116px;min-height:63px;display:grid;grid-template-columns:28px minmax(0,1fr);gap:7px;align-items:center;padding:9px 10px;border:1px solid #e3e7ed;border-radius:10px;background:#fff}.module-item.is-active{border:1px solid var(--blue);background:#f2f7ff}.module-number{width:28px;height:28px;border-radius:7px;font-size:15px}.module-copy{gap:2px}.module-copy strong{font-size:13px}.module-copy>span:not(.mini-progress){font-size:11px}.mini-progress,.module-state,.sidebar-bottom{display:none}.main-panel{min-height:calc(100dvh - 137px)}.topbar{position:sticky;top:137px;height:63px;grid-template-columns:auto minmax(70px,1fr) auto;gap:12px;padding:0 16px}.question-count{font-size:14px}.question-count strong{font-size:20px}.overall-progress{height:6px}.review-button{gap:4px;font-size:0;padding:8px}.review-button svg{width:23px}.question-stage{width:100%;margin-left:0;padding:27px 16px 30px}.question-block{margin-bottom:22px}.question-heading{grid-template-columns:42px minmax(0,1fr);gap:3px}.q-mark{font-size:32px}.question-heading h1{font-size:23px;line-height:1.5;letter-spacing:0}.question-hints{display:flex;margin:11px 0 0 45px;gap:6px}.question-hints span{font-size:11px;padding:4px 7px}.answer-list{gap:11px}.answer-option{min-height:76px;grid-template-columns:25px 27px minmax(0,1fr) 22px;gap:7px;padding:14px 13px;border-width:1.5px;border-radius:11px}.answer-option input{width:23px;height:23px}.option-letter{font-size:16px}.option-copy{font-size:16px;line-height:1.48}.answer-actions{margin-top:25px}.submit-button{width:100%;min-height:57px;border-radius:9px;font-size:19px}.learn-button{width:100%;min-height:46px;margin-top:6px;justify-content:center;font-size:15px}.feedback-card{margin-top:21px;grid-template-columns:36px minmax(0,1fr);padding:17px;gap:11px}.feedback-icon{width:34px;height:34px}.feedback-copy strong{font-size:17px}.feedback-copy p{font-size:14px;line-height:1.6}.next-button{grid-column:2;width:fit-content}.question-footer-nav{justify-content:space-between;gap:6px;margin:18px 0 12px}.question-footer-nav span{display:none}.question-footer-nav button{font-size:13px}.source-card{min-height:0;margin-top:10px;border-width:1px;scroll-margin-top:215px}.evidence-toggle{min-height:90px;grid-template-columns:39px minmax(0,1fr) auto;gap:11px;padding:16px}.source-icon{width:38px;height:38px}.source-meta{display:block}.source-tags{gap:5px;margin-bottom:9px;flex-wrap:wrap}.tag{padding:5px 9px;font-size:11px}.source-title strong{font-size:14px;white-space:normal;line-height:1.4}.source-title span{font-size:11px;white-space:normal;line-height:1.5}.expand-label{font-size:0;gap:0}.evidence-content{padding:16px;gap:13px}.answer-reason,.evidence-text{padding:15px}.answer-reason p,.evidence-text p{font-size:14px;line-height:1.68}.evidence-heading strong{font-size:14px}.evidence-source-row{align-items:stretch;gap:14px;padding-top:14px}.document-source strong{white-space:normal;line-height:1.45}.source-actions{gap:16px;flex-wrap:wrap}.text-action{font-size:14px}.full-source-link{font-size:13px}.locked-inline{font-size:11px}.modal-backdrop{padding:13px;align-items:end}.modal-card{width:100%;max-height:88dvh;border-radius:18px 18px 8px 8px;padding:27px 20px 24px}.modal-card h2{font-size:23px}.permission-list article{grid-template-columns:25px minmax(0,1fr)}.permission-list a{grid-column:2;justify-self:start}.media-frame,.media-frame img,.media-frame iframe{min-height:280px}.results-panel{width:100%;padding:48px 18px 35px}.results-panel h1{font-size:62px}.result-stats{gap:8px;margin-top:30px}.result-stats article{padding:17px 8px}.result-stats strong{font-size:27px}.result-stats span{font-size:12px}.result-actions{flex-direction:column}.result-actions .primary-button,.secondary-button{width:100%}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}
