:root{--navy:#0a2344;--ink:#132947;--muted:#5c6d81;--blue:#125ce8;--line:#dbe2eb;--paper:#f6f7fa;--sand:#d1b780;--white:#fff;--radius:20px;font-synthesis:none;color-scheme:light}
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var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(15px)}.bqa-nav{display:flex;align-items:center;justify-content:space-between;gap:26px;height:100%}.bqa-logo{direction:ltr;font-family:Arial,sans-serif;font-weight:800;letter-spacing:-1.4px;font-size:29px;display:inline-flex;gap:1px;align-items:center}.bqa-logo .q{color:var(--blue)}.bqa-logo small{width:7px;height:7px;border-radius:50%;background:var(--blue);margin-inline-start:3px;align-self:flex-end;margin-bottom:13px}.bqa-nav-links{display:flex;gap:25px;font-size:13px;font-weight:600}.bqa-nav-links a:hover{color:var(--blue)}.bqa-nav-actions{display:flex;align-items:center;gap:12px}.bqa-nav-support{border:1px solid var(--line);border-radius:9px;padding:7px 14px;font-size:12px}.bqa-menu{display:none;border:1px solid var(--line);background:white;border-radius:8px;width:42px;height:42px;font-size:21px}.bqa-mobile-nav{position:absolute;top:82px;inset-inline:0;background:white;box-shadow:0 18px 25px 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rotateZ(-8deg);box-shadow:-20px 20px 28px #12294230;overflow:hidden;color:#fff;direction:ltr}.bqa-book:before{position:absolute;top:0;bottom:0;left:10px;width:1px;background:#ffffff36;content:'';z-index:3}.bqa-book:after{position:absolute;top:4px;bottom:5px;right:0;width:7px;background:repeating-linear-gradient(#e6e3dc 0px,#e6e3dc 1px,#d5d2cd 1px,#d5d2cd 2px);content:''}.bqa-book-brand{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 0;font:bold 18px Arial,sans-serif}.bqa-book-brand span:last-child{font-size:10px;letter-spacing:1px;color:#c0cad9}.bqa-book-name{padding:22px 26px 0;font:bold 25px/1.08 Arial,sans-serif;letter-spacing:-.7px}.bqa-book-ar{padding:10px 26px;font-size:13px;direction:rtl;text-align:right;color:#d4e2f5}.bqa-cover-art{position:absolute;bottom:40px;left:20px;right:16px;height:185px}.bqa-cover-art 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0}.bqa-city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.bqa-city{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;position:relative}.bqa-city small{font:11px Arial,sans-serif;color:#94a6bc}.bqa-city h3{font-size:17px;margin:10px 0}.bqa-city p{color:var(--muted);font-size:11px;margin:0}.bqa-tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.bqa-tool{border:1px solid var(--line);border-radius:18px;background:white;padding:27px}.bqa-tool h3{font-size:19px;margin:0 0 8px}.bqa-tool>p{font-size:12px;color:var(--muted);margin-bottom:20px}.bqa-field{display:grid;gap:6px;margin-bottom:13px}.bqa-field label{font-size:12px;font-weight:600}.bqa-field input,.bqa-field select,.bqa-field textarea{border:1px solid #cfd9e5;background:#fff;border-radius:8px;padding:10px;width:100%;color:var(--ink);font-size:12px;min-width:0}.bqa-field textarea{min-height:79px;resize:vertical}.bqa-two-fields{display:grid;grid-template-columns:1fr 1fr;gap:13px}.bqa-output{white-space:pre-wrap;word-break:break-word;background:#f4f7fa;border:1px solid var(--line);border-radius:8px;padding:16px;font:12px/1.75 Arial,sans-serif;direction:ltr;text-align:left;max-height:270px;overflow:auto;margin-top:15px}.bqa-tool-result{background:#edf5ff;border:1px solid #d2e2f7;border-radius:10px;padding:17px;margin-top:18px}.bqa-tool-result b{font-size:23px;display:block}.bqa-tool-result p{font-size:11px;color:var(--muted);margin:4px 0 0}.bqa-local-note{font-size:10px;color:#697f93;margin-top:17px}.bqa-offer{padding:38px;background:#ecf2fc;border:1px solid #d2dfef;border-radius:22px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px}.bqa-offer h2{font-size:31px;line-height:1.6;margin:10px 0 15px}.bqa-offer p{font-size:13px;color:var(--muted)}.bqa-offer-detail{border-radius:15px;background:#fff;padding:27px;border:1px solid #dce5ef;display:flex;flex-direction:column;justify-content:center}.bqa-offer-detail h3{font-size:19px;margin:8px 0}.bqa-offer-detail .bqa-btn{margin-top:15px}.bqa-offer-detail small{font-size:11px;color:var(--muted);margin-top:13px}.bqa-offer-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:12px;color:#48617c;margin:20px 0}.bqa-offer-list span:before{content:'✓';color:#26775b;margin-inline-end:7px}.bqa-existing{background:#071d3b;color:white;border-radius:18px;padding:29px;margin-top:22px;display:flex;gap:30px;align-items:center;justify-content:space-between}.bqa-existing h3{margin:4px 0;font-size:20px}.bqa-existing p{font-size:12px;color:#c0ccdc;margin:5px 0}.bqa-existing strong{font-size:24px;direction:ltr;display:block;white-space:nowrap}.bqa-existing-actions{display:flex;align-items:center;gap:20px}.bqa-faq{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}.bqa-faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px}.bqa-faq 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p{font-size:12px;color:var(--muted);max-width:360px}.bqa-footer h3{font-size:12px;margin-top:0}.bqa-footer nav{display:grid;gap:8px;font-size:12px;color:#587089}.bqa-footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:10px;color:#748398}.bqa-sticky{display:none;position:fixed;z-index:40;bottom:0;inset-inline:0;padding:10px 16px max(10px,env(safe-area-inset-bottom));background:#ffffffee;border-top:1px solid var(--line);backdrop-filter:blur(12px);gap:10px}.bqa-sticky a{flex:1}.bqa-notice{font-size:11px;color:#546c87;margin-top:15px}.bqa-toast{position:fixed;z-index:90;bottom:90px;left:50%;transform:translateX(-50%);background:#0a2344;color:#fff;border-radius:10px;padding:12px 20px;box-shadow:0 5px 30px #112a4a22;font-size:12px;max-width:90vw}.bqa-hub-hero{background:#f3f6fa;padding:63px 0 57px;border-bottom:1px solid var(--line)}.bqa-hub-hero-grid{display:grid;grid-template-columns:1.06fr 1fr;gap:60px;align-items:center}.bqa-hub-hero h1{font-size:clamp(35px,4.2vw,60px);line-height:1.65;letter-spacing:-1.5px;margin:14px 0 20px}.bqa-hub-hero h1 span{color:var(--blue)}.bqa-hub-art{min-height:360px;display:flex;align-items:center;justify-content:center;gap:0;position:relative;direction:ltr}.bqa-hub-art .bqa-book{width:175px;height:258px;margin-inline:-26px;transform:rotate(-12deg) translateY(13px);box-shadow:0 25px 36px #18325028;z-index:1}.bqa-hub-art .bqa-book:nth-child(2){transform:translateY(-15px);z-index:3}.bqa-hub-art .bqa-book:nth-child(3){transform:rotate(12deg) translateY(13px);z-index:2}.bqa-hub-art .bqa-book-brand{font-size:14px;padding:17px 15px 0}.bqa-hub-art .bqa-book-brand span:last-child{display:none}.bqa-hub-art .bqa-book-name{font-size:17px;padding:18px 17px 0}.bqa-hub-art .bqa-book-ar{font-size:9px;padding:8px 17px}.bqa-hub-art .bqa-cover-art{height:125px;bottom:21px;left:12px;right:12px}.bqa-hub-art .bqa-book-foot{font-size:6px;bottom:10px;left:17px}.bqa-hub-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}.bqa-hub-filter button{font-size:12px;padding:9px 18px;background:white;border:1px solid var(--line);border-radius:8px}.bqa-hub-filter button[aria-pressed=true]{background:var(--navy);border-color:var(--navy);color:white}.bqa-hub-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.bqa-hub-card{border:1px solid var(--line);border-radius:17px;overflow:hidden;background:#fff;display:flex;flex-direction:column}.bqa-card-art{height:210px;background:#eaf0f5;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.bqa-card-art svg{width:78%;height:170px;background:#12304d;border-radius:12px;padding:10px}.bqa-card-art .bqa-label{position:absolute;top:16px;right:16px}.bqa-card-body{padding:23px;flex:1;display:flex;flex-direction:column}.bqa-card-body h3{font-size:20px;margin:6px 0 12px;line-height:1.7}.bqa-card-body p{font-size:12px;color:var(--muted);margin:0 0 22px}.bqa-card-body .bqa-btn{align-self:flex-start;margin-top:auto}.bqa-hub-compare{width:100%;border-collapse:collapse;min-width:700px;font-size:12px}.bqa-hub-compare th,.bqa-hub-compare td{padding:17px 20px;border-bottom:1px solid var(--line);text-align:start}.bqa-hub-compare th{background:#eef3fa}.bqa-table-scroll{overflow:auto;border:1px solid var(--line);border-radius:12px}.bqa-english{direction:ltr}.bqa-english .bqa-hub-hero h1{line-height:1.2;letter-spacing:-2px}.bqa-screenreader{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1600px){.bqa-hero{padding-top:55px}.bqa-visual{min-height:575px}}
@media(max-width:1080px){.bqa-nav-links{gap:13px;font-size:11px}.bqa-hero-grid{gap:28px}.bqa-hero h1{font-size:40px}.bqa-book{width:245px;height:360px}.bqa-visual{min-height:515px}.bqa-floating{width:170px;font-size:10px}.bqa-float-top{right:10px;top:60px}.bqa-float-bottom{left:10px;bottom:35px}.bqa-floating strong{font-size:12px}.bqa-preview-layout{gap:25px}.bqa-hub-cards{gap:14px}.bqa-hub-art .bqa-book{width:154px;height:240px}.bqa-cover-art{height:166px}}
@media(max-width:760px){.bqa-shell{width:calc(100% - 34px)}.bqa-header{height:69px}.bqa-nav-links,.bqa-nav-support{display:none}.bqa-menu{display:block}.bqa-mobile-nav{top:68px}.bqa-logo{font-size:25px}.bqa-breadcrumb{padding-top:18px;font-size:10px}.bqa-hero{padding-top:24px;padding-bottom:36px}.bqa-hero-grid,.bqa-hub-hero-grid{grid-template-columns:1fr;gap:32px}.bqa-hero h1{font-size:36px;line-height:1.6;letter-spacing:-1px}.bqa-product-name{font-size:14px;margin-top:18px}.bqa-lede{font-size:14px}.bqa-visual{min-height:435px}.bqa-book{width:235px;height:337px}.bqa-book-name{font-size:22px}.bqa-book-ar{font-size:11px}.bqa-floating{width:167px;padding:11px}.bqa-float-top{top:52px;right:11px}.bqa-float-bottom{bottom:43px;left:11px}.bqa-cover-art{height:155px;bottom:35px}.bqa-visual-top{font-size:8px}.bqa-goalbar .bqa-shell{display:block}.bqa-goalbar strong{display:block;margin-top:10px;font-size:12px}.bqa-section{padding:53px 0}.bqa-section-head{display:block;margin-bottom:25px}.bqa-section-head p{max-width:none;font-size:12px}.bqa-section h2{font-size:26px}.bqa-grid3,.bqa-tools-grid,.bqa-faq,.bqa-related-grid,.bqa-preview-layout,.bqa-offer,.bqa-hub-cards{grid-template-columns:1fr}.bqa-grid3{gap:12px}.bqa-panel{padding:21px}.bqa-explorer{grid-template-columns:1fr}.bqa-explorer-menu{border-inline-end:0;border-bottom:1px solid var(--line);padding:18px}.bqa-explorer-detail{padding:24px}.bqa-category-buttons{gap:8px}.bqa-cat{font-size:11px;min-height:50px}.bqa-preview-nav{grid-template-columns:1fr 1fr}.bqa-preview-nav button{font-size:11px;padding:10px;gap:7px}.bqa-sheet{padding:23px;min-height:380px}.bqa-sheet h3{font-size:22px}.bqa-evidence-grid{grid-template-columns:1fr 1fr}.bqa-evidence{padding:19px;border-bottom:1px solid #38506d}.bqa-evidence:nth-child(2){border-inline-end:0}.bqa-evidence:nth-child(3){border-bottom:0}.bqa-evidence h3{font-size:14px}.bqa-evidence p{font-size:11px}.bqa-city-grid{grid-template-columns:1fr 1fr;gap:10px}.bqa-city{padding:17px}.bqa-tool{padding:22px}.bqa-offer{padding:23px;gap:22px}.bqa-offer h2{font-size:27px}.bqa-existing{flex-direction:column;align-items:stretch;padding:23px;gap:16px}.bqa-existing-actions{justify-content:space-between}.bqa-existing h3{font-size:18px}.bqa-existing strong{font-size:22px}.bqa-footer-grid{grid-template-columns:1fr 1fr;gap:25px}.bqa-footer-grid>div:first-child{grid-column:span 2}.bqa-footer-bottom{display:block;font-size:10px}.bqa-sticky{display:flex}.bqa-hub-hero{padding:37px 0 30px}.bqa-hub-hero h1{font-size:38px}.bqa-hub-art{min-height:300px}.bqa-hub-art .bqa-book{width:152px;height:235px}.bqa-card-art{height:200px}.bqa-card-art svg{width:80%;max-width:270px}.bqa-hub-compare{font-size:11px}.bqa-illustration-note{font-size:8px}.bqa-hub-hero-grid{gap:8px}}
@media(max-width:370px){.bqa-shell{width:calc(100% - 26px)}.bqa-hero h1{font-size:31px}.bqa-floating{width:140px}.bqa-hero .bqa-actions .bqa-btn{font-size:11px;padding:10px 14px}.bqa-cat{font-size:10px}.bqa-book{width:215px}.bqa-hub-art .bqa-book{width:134px}.bqa-two-fields{grid-template-columns:1fr}.bqa-existing-actions{flex-wrap:wrap}.bqa-hub-hero h1{font-size:34px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media print{.bqa-header,.bqa-sticky,.bqa-footer,.bqa-actions,.bqa-tools-grid{display:none}.bqa-section{padding:20px 0}.bqa-hero-grid,.bqa-preview-layout{display:block}.bqa-visual{display:none}.bqa-shell{width:100%}}
.bqa-hero h1 .bqa-product-name{display:block;font-size:15px;font-weight:600;line-height:1.9;letter-spacing:0;margin:17px 0 7px;color:#465e7a}
.bqa-hub-art{overflow:hidden;padding-block:15px}