.stk{--stk-blue:#168bc5;--stk-navy:#102e50;--stk-height:820px;box-sizing:border-box;background:#f0f5fa;border:1px solid #dbe6ef;border-radius:18px;color:#102e50;font:15px/1.45 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;max-width:1400px;margin:24px auto;overflow:hidden;isolation:isolate}.stk *{box-sizing:border-box}.stk button,.stk a{font:inherit}.stk button,.stk-toolbar a,.stk-contact{border:1px solid #d3e0eb;background:#fff;color:#173c5b;border-radius:8px;padding:9px 13px;text-decoration:none;cursor:pointer;line-height:1.3;box-shadow:none;text-transform:none;letter-spacing:normal}.stk button:hover,.stk-toolbar a:hover{background:#e2eff8;color:#102e50}.stk button:disabled{opacity:.35;cursor:default}.stk :focus-visible{outline:3px solid #ef9a46;outline-offset:3px}.stk-header{padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff}.stk-eyebrow{font-size:11px;font-weight:800;letter-spacing:2px;color:#168bc5}.stk .stk-header h2{font-size:23px;line-height:1.25;margin:5px 0 0;padding:0;color:#102e50;font-weight:700}.stk a.stk-contact{background:#102e50;color:#fff;border-color:#102e50;white-space:nowrap}.stk-toolbar{display:flex;align-items:center;gap:8px;padding:12px 24px;border-bottom:1px solid #dbe6ef;flex-wrap:wrap}.stk-toolbar .stk-download{margin-left:auto;background:#168bc5;border-color:#168bc5;color:#fff}.stk-zoom{font-size:12px;min-width:41px;text-align:center}.stk-layout{display:flex;height:var(--stk-height);max-height:78vh;min-height:360px}.stk-stage{flex:1;min-width:0;overflow:auto;display:flex;align-items:flex-start;justify-content:flex-start;padding:24px 16px;background:radial-gradient(ellipse at 50% 32%,#e6f0f7,#cbd9e5);touch-action:pan-y;scrollbar-width:thin}.stk-book{display:flex;flex:none;gap:2px;margin:auto;perspective:1800px;align-self:center;position:relative;box-shadow:0 12px 38px #143a5a38;border-radius:2px;transition:width .18s ease}.stk-page{width:100%;min-width:0;background:#fff;position:relative;aspect-ratio:595.276/841.89;display:block}.stk-page img{display:block;width:100%;height:100%;object-fit:contain;margin:0;padding:0;border:0;border-radius:0;user-select:none;-webkit-user-drag:none}.stk-page:only-child{width:100%}.stk-book.stk-double .stk-page{width:50%}.stk-book.stk-double:after{content:"";position:absolute;left:50%;top:0;bottom:0;width:18px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,#102e501a,transparent);pointer-events:none}.stk-book.stk-forward{animation:stkForward .32s ease}.stk-book.stk-backward{animation:stkBackward .32s ease}.stk-thumbs{width:180px;flex-shrink:0;overflow-y:auto;padding:14px;background:#edf4f9;border-right:1px solid #d4e1eb}.stk-thumbs[hidden]{display:none}.stk .stk-thumb{display:block;width:100%;padding:8px;margin-bottom:10px;border:2px solid transparent;background:#fff;text-align:center}.stk-thumb img{display:block;width:auto;max-width:100%;height:145px;object-fit:contain;margin:0 auto 6px}.stk-thumb span{font-size:11px}.stk .stk-thumb[aria-current=true]{border-color:#168bc5;background:#e5f4fc}.stk-footer{padding:15px 24px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff}.stk-page-control{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}.stk-page-control label{display:flex;align-items:center;gap:8px;font-size:13px}.stk input[type=number]{width:57px;height:34px;border:1px solid #c6d9e6;background:#f6fafe;border-radius:7px;padding:5px;text-align:center;color:#102e50;font:inherit;margin:0;min-height:0;box-shadow:none}.stk-count{font-size:13px}.stk-status{font-size:12px;color:#59718a}.stk-hint{margin:0;padding:0 24px 15px;background:#fff;font-size:12px;color:#657d90;text-align:center}.stk-error{position:absolute;inset:10%;background:#fff;display:grid;place-content:center;text-align:center;color:#9f2929;padding:14px}.stk:fullscreen,.stk.stk-fullscreen{width:100%;max-width:none;height:100dvh;margin:0;border:0;border-radius:0;display:flex;flex-direction:column;background:#f0f5fa}.stk:fullscreen .stk-layout,.stk.stk-fullscreen .stk-layout{flex:1;height:auto;max-height:none;min-height:0}.stk.stk-fullscreen{position:fixed;inset:0;z-index:2147483600}.stk:fullscreen .stk-header,.stk.stk-fullscreen .stk-header{padding:12px 24px}.stk:fullscreen .stk-hint,.stk.stk-fullscreen .stk-hint{display:none}@keyframes stkForward{0%{opacity:.55;transform:rotateY(-9deg) translateX(12px)}100%{opacity:1;transform:none}}@keyframes stkBackward{0%{opacity:.55;transform:rotateY(9deg) translateX(-12px)}100%{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.stk *{animation:none!important;transition:none!important}}@media(max-width:700px){.stk{margin:12px 0;border-radius:12px}.stk-header{padding:16px}.stk .stk-header h2{font-size:18px}.stk-contact{font-size:12px!important;padding:8px!important}.stk-toolbar{padding:10px;gap:6px}.stk-toolbar button,.stk-toolbar a{font-size:12px;padding:8px}.stk-toolbar [data-action=mode]{display:none}.stk-layout{height:680px;max-height:68vh;min-height:330px}.stk-stage{padding:14px 8px}.stk-thumbs{width:112px;padding:6px}.stk-thumb img{height:100px}.stk-footer{padding:12px 9px;gap:5px}.stk-footer>button{font-size:12px;padding:8px}.stk-status{display:none}.stk-hint{padding:0 12px 12px;font-size:11px}.stk-toolbar .stk-download{margin-left:0}}