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span{color:var(--muted);font-size:11px}.topics ul{gap:6px;margin:0;padding:0;list-style:none;display:grid}.topics li a{border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--text);justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;display:flex}.topics li a:hover{border-color:var(--navy)}.topics li a .count{color:var(--muted);white-space:nowrap;font-size:14px}.footer{border-top:1px solid var(--line);color:var(--muted);margin-top:40px;padding:20px 0 28px;font-size:13px}.footer .wrap{gap:6px;display:grid}.footer .links{flex-wrap:wrap;gap:14px;margin-bottom:6px;display:flex}.demo-note{color:#7a4b00;background:#fff7e6;border-bottom:1px solid #f3dfb5;font-size:13px}.demo-note .wrap{padding-top:8px;padding-bottom:8px}.sheet{z-index:20;background:#0f172a73;place-items:end center;display:grid;position:fixed;inset:0}.sheet .card{width:min(100%,520px);padding:20px 18px max(20px, env(safe-area-inset-bottom));border-radius:16px 16px 0 0}.sheet .actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:14px;display:grid}.hero{padding:32px 0 8px}.hero-sub{display:none}@media (min-width:960px){.hero{grid-template-columns:minmax(0,1fr) 460px;align-items:center;gap:56px;min-height:540px;padding:40px 0 16px;display:grid}.hero h1{font-size:50px}.hero-sub{color:var(--muted);max-width:500px;margin:14px 0 0;font-size:18px;line-height:1.5;display:block}.hero-card{max-width:540px}.hero .preview{margin:0;padding:20px 0 40px}.hero .device{width:330px}.hero .preview:before{inset:0 -4% 0 -6%}.hero .float-result{top:128px;right:24px}.hero .float-specs{right:24px}.hero .mini-q{font-size:12.5px}}.topics li.all a{color:var(--navy);font-weight:600}.topics li.all a .count{color:var(--navy)}@media (min-width:720px){.topics-grid ul{grid-template-columns:repeat(3,1fr);gap:10px}.topics-grid li a{border-radius:var(--radius);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:10px;min-height:104px;padding:16px 18px}.topics-grid li a:hover{box-shadow:var(--shadow)}.topics-grid li.all a{background:var(--navy-soft);border-color:#0000}.topics-cols ul{grid-template-columns:1fr 1fr;gap:8px}}.exam-body{flex-direction:column;flex:1;display:flex}.exam-main{flex:1;padding:14px 0}.exam-side{border-top:1px solid var(--line);padding:10px 0 max(10px, env(safe-area-inset-bottom));z-index:4;background:#fff;position:sticky;bottom:0}.exam-side .wrap-read{gap:10px;display:grid}.side-legend{display:none}@media (min-width:960px){.exam-body{width:100%;max-width:var(--maxw);grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:24px;margin:0 auto;padding:24px;display:grid}.exam-body .wrap-read{max-width:none;margin:0;padding:0}.exam-main{padding:0}.exam-main .card{padding:26px 28px}.exam-main .question{font-size:20px}.exam-side{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;position:sticky;top:72px;bottom:auto}.exam-side .panel{grid-template-columns:repeat(5,1fr);gap:6px}.exam-side .panel button{height:42px;font-size:14px}.side-legend{color:var(--muted);justify-content:space-between;gap:8px;margin:0;font-size:13px;display:flex}.side-legend b{color:var(--text);font-weight:600}}.result-body{width:100%;max-width:var(--maxw-read);flex-direction:column;flex:1;gap:12px;margin:0 auto;padding:14px 16px 0;display:flex}.result-side{display:contents}.result-main{order:1;align-content:start;gap:12px;min-width:0;display:grid}.fake-door{order:2}.result-body .sticky-cta{padding:10px 16px max(10px, env(safe-area-inset-bottom));order:3;margin:0 -16px}@media (min-width:768px){.result-body{padding-left:24px;padding-right:24px}.result-body .sticky-cta{margin:0 -24px;padding-left:24px;padding-right:24px}}@media (min-width:960px){.result-body{max-width:var(--maxw);grid-template-columns:340px minmax(0,1fr);align-items:start;gap:28px;padding:24px;display:grid}.result-side{gap:12px;display:grid;position:sticky;top:16px}.result-body .sticky-cta{background:0 0;border:0;margin:0;padding:0;position:static}.result-main .card{padding:22px 26px}}@media (min-width:768px){.footer{margin-top:56px;padding:28px 0 36px}.footer .wrap{grid-template-columns:auto 1fr;column-gap:48px}.footer .links{flex-direction:column;grid-row:1/span 2;gap:8px;margin:0}}@media (min-width:720px){.topics-grid li.all a{flex-direction:row;justify-content:space-between;align-items:center}.topics-grid li.all a .count{font-size:18px}}.side-legend span{white-space:nowrap}@media (min-width:768px){.sheet{place-items:center}.sheet .card{border-radius:16px;padding:24px}.question-img{width:fit-content;max-width:100%}.question-img img{width:auto;max-width:100%;max-height:440px}.answer .answer-img{width:fit-content}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-font-weight{syntax:"*";inherits:false}