:root{--rb-navy:#10243a;--rb-teal:#087f8c;--rb-mint:#92eee0;--rb-line:#cfdee0;--rb-ink:#163042;--rb-muted:#556a7b;--rb-paper:#fff;--rb-body-size:20px}.rb-body{background:#f5f8f6;color:var(--rb-ink)}.rb-wrap{width:min(1160px,calc(100% - 48px));margin-inline:auto}.rb-page{padding-block:64px}.rb-hero{padding:70px 0;background:linear-gradient(130deg,#eaf7f4,#f7f8f5)}.rb-body h1{font-size:clamp(2.1rem,5vw,3.7rem);line-height:1.1;letter-spacing:-.055em;margin:12px 0 24px}.rb-body h2{font-size:clamp(1.35rem,3vw,2rem);line-height:1.22}.rb-body h3{font-size:1.2rem}.rb-body p{line-height:1.65}.rb-kicker{display:block;color:#087f8c;font-size:.72rem;line-height:1.6;letter-spacing:.14em;text-transform:uppercase;font-weight:800}.rb-lead{font-size:1.15rem;color:var(--rb-muted);max-width:750px}.rb-note{border:1px solid #bddbd4;background:#edf8f4;color:#1c514d;border-radius:14px;padding:20px 24px;margin:24px 0;line-height:1.65}.rb-note h2{font-size:1.4rem}.rb-intro{max-width:850px;margin-bottom:34px}.rb-card{background:var(--rb-paper);border:1px solid var(--rb-line);border-radius:20px;padding:30px;min-width:0}.rb-card p{margin:12px 0}.rb-books{display:grid;grid-template-columns:1fr 1fr;gap:24px}.rb-book-card{display:flex;flex-direction:column;border:1px solid var(--rb-line);border-radius:22px;overflow:hidden;background:#fff;min-width:0}.rb-book-art{padding:32px;background:linear-gradient(145deg,#dceee9,#f1f3ed);display:flex;justify-content:center;align-items:center;min-height:340px}.rb-book-art img{width:210px;height:auto;box-shadow:16px 18px 30px #10243a24;border-radius:3px}.rb-book-info{padding:30px;display:flex;flex-direction:column;flex:1}.rb-book-info .btns{margin-top:auto;padding-top:18px}.rb-locked{display:block;border:1px solid var(--rb-line);padding:14px 18px;border-radius:10px;margin-top:auto;color:#556773;background:#f6f8f7;font-weight:650}.rb-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:30px 0}.rb-two{display:grid;grid-template-columns:1fr 1fr;gap:22px}.rb-form{max-width:900px}.rb-form .field{margin-bottom:20px}.rb-form textarea,.rb-copy-text{width:100%;min-height:110px;padding:14px;border:1px solid #9db8c1;border-radius:10px;font:inherit;line-height:1.6;background:#fff;color:#163042}.rb-form input,.rb-form select{min-height:48px}.rb-form label{line-height:1.5}.rb-check{display:flex;gap:12px;align-items:flex-start;line-height:1.6;margin:16px 0;font-size:.95rem}.rb-check input[type=checkbox]{width:21px;height:21px;min-height:21px;flex:0 0 auto;margin-top:3px;accent-color:#087f8c}.rb-step{font-size:.8rem;font-weight:800;color:#087f8c;letter-spacing:.12em}.rb-userbar,.rb-title-row{display:flex;justify-content:space-between;gap:24px;align-items:center;margin:24px 0}.rb-badge{display:inline-block;border-radius:30px;background:#e5f3ef;color:#125952;padding:6px 12px;font-size:.8rem;font-weight:750}.rb-narrow{max-width:570px;margin-inline:auto}.rb-stat{display:block;font-size:2.5rem;line-height:1.4;letter-spacing:-.05em}.rb-campaign{margin:28px 0 48px}.rb-details{margin:20px 0}.rb-details summary{cursor:pointer;min-height:48px;display:list-item;font-weight:700;line-height:1.5;padding:12px 0}.rb-filter{display:flex;align-items:end;gap:18px;flex-wrap:wrap}.rb-filter .field{flex:1;min-width:180px;margin:0}.rb-filter input,.rb-filter select{width:100%;padding:12px;border:1px solid #aac3cb;border-radius:8px;background:#fff;min-height:46px}.rb-request{margin:22px 0}.rb-request .rb-title-row{margin:0}.rb-approve{background:#f1f8f5;border:1px solid #cde3dd;border-radius:12px;padding:18px;margin:22px 0}.rb-approve fieldset{border:0;padding:0;display:flex;gap:24px;flex-wrap:wrap}.rb-approve legend{font-weight:700;font-size:.9rem;margin-bottom:6px}.rb-actions{display:flex;gap:16px;flex-wrap:wrap}.rb-divider{border-top:1px solid #d3e1e0;padding-top:22px;margin-top:22px}.rb-copy-text{overflow-wrap:anywhere;margin:12px 0}.rb-prose{max-width:840px}.rb-prose h2{margin-top:32px}.rb-prose h2:first-child{margin-top:0}.rb-footer{padding:28px max(24px,calc((100vw - 1160px)/2));background:#10243a;color:#e7f6f4;display:flex;gap:22px;flex-wrap:wrap;font-size:.85rem}.rb-footer a{color:#e7f6f4;padding:8px 0;min-height:36px}.rb-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.rb-body .btn{transition:box-shadow .18s ease,transform .18s ease,filter .18s ease}.rb-body .btn:hover,.rb-body .btn:focus-visible{box-shadow:0 0 0 3px #b1ebe5,0 0 24px #1cb9ba66}.rb-body .btn:active{transform:translateY(1px);box-shadow:0 0 0 4px #80e7dc,0 0 26px #42cfcf88}.rb-body a:focus-visible,.rb-body summary:focus-visible,.rb-body select:focus-visible,.rb-tool:focus-visible{outline:3px solid #087f8c;outline-offset:3px;border-radius:5px}.rb-body code{overflow-wrap:anywhere}.rb-reader-header{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#10243a;color:#fff;padding:16px 5vw}.rb-wordmark{font-size:1.4rem;letter-spacing:.05em;font-weight:800;display:block}.rb-wordmark span{font-size:.64rem;display:block;letter-spacing:.04em;font-weight:400;margin-top:2px}.rb-reader-header a{color:#e4f6f2;padding:6px 8px;display:inline-block}.rb-reader-header nav{display:flex;gap:8px;font-weight:650}.rb-reader-controls{background:#fff;border-bottom:1px solid #c9dddd;padding:14px 5vw;display:flex;align-items:start;justify-content:space-between;gap:16px;flex-wrap:wrap}.rb-reader-tools{display:flex;gap:8px;flex-wrap:wrap}.rb-tool{background:#edf7f3;border:1px solid #a7c8c2;padding:9px 13px;min-height:44px;border-radius:9px;color:#163042;font:inherit;cursor:pointer;font-size:.88rem}.rb-tool:hover{box-shadow:0 0 15px #27b9bd55}.rb-contents{max-width:min(90vw,500px)}.rb-contents summary{font-weight:750;padding:8px 0;cursor:pointer}.rb-contents form{padding:12px 0;display:flex;gap:10px;flex-wrap:wrap}.rb-contents label{display:block;width:100%;font-size:.9rem}.rb-contents select{max-width:100%;width:100%;min-height:46px;background:#fff;border:1px solid #aac6ca;border-radius:8px;padding:10px;font:inherit}.rb-reader-shell{width:min(910px,calc(100% - 40px));margin:30px auto 60px}.rb-read-notice{font-size:.76rem;line-height:1.7;color:#526d72;padding:12px 0;border-bottom:1px solid #cbdcdb;overflow-wrap:anywhere}.rb-book-content{background:#fff;border:1px solid #d6e0dd;border-radius:18px;padding:48px 60px;font-family:Georgia,'Times New Roman',serif;font-size:var(--rb-body-size);line-height:1.8;color:#182d36;overflow-wrap:anywhere;margin-top:22px}.rb-book-content h1,.rb-book-content h2,.rb-book-content h3,.rb-book-content h4{font-family:system-ui,sans-serif;letter-spacing:-.03em;font-size:1.45em;line-height:1.3;max-width:100%;margin:1.4em 0 .7em}.rb-book-content p{margin:.65em 0;line-height:1.8;font-size:inherit}.rb-book-content li{margin:.35em 0}.rb-book-content strong{font-weight:700}.rb-book-content img{display:block;max-width:100%;height:auto;margin:22px auto}.rb-book-content .rb-cover-page{max-width:470px;width:100%}.rb-table{overflow:auto;max-width:100%;border-radius:6px;margin:20px 0}.rb-book-content table{width:100%;border-collapse:collapse;font-size:.9em}.rb-book-content td,.rb-book-content th{border:1px solid #9cb4b7;padding:8px;vertical-align:top}.rb-book-content pre{white-space:pre-wrap}.rb-book-content blockquote{margin:22px 0;padding:8px 20px;border-left:3px solid #087f8c;background:#edf6f4}.rb-book-content nav ol{padding-left:22px}.rb-page-turn{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:30px 0}.rb-reading.rb-warm{background:#eee7d6}.rb-warm .rb-book-content{background:#fff9e9}.rb-warm .rb-reader-controls{background:#fcf4de}.rb-save-error{color:#982d2d;font-weight:700}.rb-closed-reader{padding:30px;border:1px solid #bbd3cd;border-radius:18px;background:#f4f9f6}.rb-expiry-message{padding:24px;background:#fff1e9;border:1px solid #ddbeac;line-height:1.6}
@media(max-width:760px){.rb-wrap{width:calc(100% - 32px)}.rb-page{padding-block:38px}.rb-hero{padding:42px 0}.rb-books,.rb-three,.rb-two{grid-template-columns:1fr}.rb-card{padding:22px}.rb-book-art{min-height:280px;padding:28px}.rb-book-art img{width:175px}.rb-book-info{padding:24px}.rb-title-row,.rb-userbar{align-items:flex-start;flex-direction:column;gap:12px}.rb-request h3{font-size:1.35rem}.rb-body h1{font-size:2.6rem}.rb-three{gap:12px}.rb-three .rb-card{padding:20px}.rb-stat{font-size:2rem}.rb-reader-shell{width:calc(100% - 24px);margin-top:18px}.rb-book-content{padding:24px 20px;--rb-body-size:19px;border-radius:12px}.rb-reader-controls{padding:12px 16px}.rb-reader-tools{gap:7px}.rb-book-content h1{font-size:1.35em}.rb-footer{gap:12px 20px}.rb-note{padding:18px}.rb-approve{padding:15px}.rb-approve fieldset{gap:10px 24px}.rb-book-info .btns{flex-direction:column;align-items:stretch}.rb-page-turn .btn{font-size:.85rem;padding:12px 16px;flex:1;min-width:125px}.rb-reader-header{padding:12px 14px}.rb-reader-header nav{font-size:.9rem}}
@media(prefers-reduced-motion:reduce){.rb-body .btn{transition:none}.rb-body .btn:active{transform:none}}