:root{--color-white: #ffffff;--color-page-bg: #f8f7f5;--color-text-primary: #111111;--color-text-secondary: #666666;--color-text-muted: #999999;--color-accent: #c3141e;--color-accent-soft: rgba(195, 20, 30, .08);--color-accent-softer: rgba(195, 20, 30, .04);--color-border-thin: rgba(0, 0, 0, .08);--color-border-soft: rgba(195, 20, 30, .06);--shadow-card: 0 12px 32px rgba(0, 0, 0, .07);--shadow-soft: 0 10px 30px rgba(0, 0, 0, .05);--radius-sm: 8px;--radius-md: 10px;--radius-lg: 14px;--transition-fast: .2s ease;--transition-base: .25s ease}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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ease}.page-content.is-blurred{filter:blur(8px)}.main-container{min-height:100vh;display:flex;flex-direction:column;padding:1.5rem 1rem 2rem;max-width:1400px;margin:0 auto;background:transparent}.main-header{text-align:center;margin-bottom:2.2rem;padding:48px 0;position:relative;background:linear-gradient(to bottom,var(--color-border-soft),var(--color-border-soft)) top center / 100% 1px no-repeat,linear-gradient(to top,var(--color-border-soft),var(--color-border-soft)) bottom center / 100% 1px no-repeat,radial-gradient(circle,rgba(195,20,30,.03) .55px,transparent .55px) center / 14px 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ease;position:relative;overflow:hidden;-webkit-tap-highlight-color:transparent;box-shadow:none;display:flex;flex-direction:column;height:auto}.book-box:after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--color-accent);transition:width .25s ease}.book-box:hover,.book-box:focus-visible{transform:translateY(-4px);box-shadow:var(--shadow-card)}.book-box:hover:after,.book-box:focus-visible:after{width:100%}.book-thumb-area{position:relative;background:radial-gradient(circle,rgba(195,20,30,.06) .55px,transparent .55px) center/14px 14px,linear-gradient(180deg,#fff,#faf9f8);border-bottom:.5px solid rgba(0,0,0,.06);min-height:176px;display:grid;place-items:center;overflow:hidden;padding:1rem}.book-icon-wrap{position:absolute;top:50%;left:50%;width:54px;height:54px;transform:translate(-50%,-50%);border-radius:50%;border:1px solid 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.book-arrow{transform:translate(4px)}.book-box[data-position]{margin-top:0;justify-self:center}.main-footer{text-align:center;padding-top:2.25rem;margin-top:1.25rem;color:#b5b5b5;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:400;position:relative}.main-footer:before{content:"";position:absolute;top:1.1rem;left:50%;transform:translate(-50%);width:60px;height:1px;background:#c3141e38}.viewer-container{min-height:100vh;display:flex;flex-direction:column;background:#fff}.viewer-header{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:1.25rem 1rem;background:#fff;border-bottom:1px solid rgba(0,0,0,.08);text-align:center;box-shadow:var(--shadow-soft)}.back-button{color:#555;text-decoration:none;font-size:.9rem;font-weight:500;transition:all var(--transition-fast);padding:.5rem 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#ececec}.zoom-btn{min-width:44px;min-height:44px;padding:.5rem;font-size:1.1rem;font-weight:500;display:flex;align-items:center;justify-content:center;line-height:1;border-radius:var(--radius-sm)}.zoom-level{font-size:.85rem;color:#666;min-width:48px;text-align:center;font-weight:500;-webkit-user-select:none;user-select:none;font-variant-numeric:tabular-nums}.swipe-hint{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.25rem;color:#666;font-size:.8rem;font-weight:500;background:#fff;border-radius:100px;margin:.75rem auto;box-shadow:0 4px 16px #0000000d;border:1px solid #f0f0f0;animation:fadeInOut 3s ease-in-out infinite}.swipe-hint-icon{font-size:1.1rem}@keyframes fadeInOut{0%,to{opacity:.5}50%{opacity:1}}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:#777;font-size:.9rem;letter-spacing:.08em;text-align:center;padding:2rem;font-weight:400;text-transform:uppercase}.error-message{text-align:center;padding:2.5rem 1.5rem;color:var(--color-accent);background:#c3141e12;border-radius:var(--radius-md);border:1px solid rgba(195,20,30,.12);max-width:500px;margin:0 auto}.error-message h2{font-weight:500;margin-bottom:.75rem;font-size:1.25rem;color:var(--color-accent)}.error-message p{color:#666;font-size:.875rem;line-height:1.6}.error-message .back-button{margin-top:1.5rem;display:inline-flex;background:#fff;border:1px solid #eee}@keyframes logoScaleIn{0%{opacity:0;transform:scale(.8);filter:drop-shadow(0 0 0 rgba(195,20,30,0))}to{opacity:1;transform:scale(1);filter:drop-shadow(0 8px 18px rgba(195,20,30,.22))}}@keyframes dividerExpand{0%{width:0}to{width:200px}}@keyframes titleSlideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes taglineFade{0%{opacity:0}to{opacity:1}}@keyframes dotsContainerIn{0%{opacity:0}to{opacity:1}}@keyframes blinkDot{0%,80%,to{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}@keyframes scanlineMove{0%{transform:translateY(0)}to{transform:translateY(220%)}}@media (min-width: 480px){.main-container{padding:2rem 1.4rem 2.4rem}.books-container{grid-template-columns:repeat(2,1fr);gap:1.2rem}.viewer-header{flex-direction:row;justify-content:space-between;padding:1rem 1.5rem}.viewer-title{font-size:1.15rem}.flipbook-wrapper{padding:1.5rem}}@media (min-width: 768px){.main-container{padding:2.25rem 2rem 2.5rem}.main-header{margin-bottom:2.8rem}.books-container{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.35rem;padding:.5rem 0 1.2rem}.book-box[data-position=left],.book-box[data-position=right],.book-box[data-position=center]{justify-self:stretch}.main-footer{padding-top:2.8rem;font-size:.74rem}.viewer-header{padding:1.25rem 2rem}.viewer-title{font-size:1.2rem}.page-info{font-size:.85rem}.flipbook-wrapper{padding:2rem}.viewer-controls{padding:1.25rem;gap:1.25rem}.control-btn{padding:.75rem 2.5rem;min-width:140px}.loading{min-height:400px;font-size:1rem}.error-message{padding:3rem 2rem}.error-message h2{font-size:1.5rem}.error-message p{font-size:.9rem}}@media (min-width: 1024px){.books-container{grid-template-columns:repeat(4,minmax(0,1fr))}.viewer-header{padding:1.25rem 3rem}.flipbook-wrapper{padding:2rem 3rem}}@media (min-width: 1200px){.books-container{grid-template-columns:repeat(4,minmax(0,1fr))}.main-container{padding:3rem 2rem}}@media (min-width: 1400px){.books-container{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (max-height: 500px) and (orientation: landscape){.main-header{margin-bottom:1.2rem;padding:24px 0}.company-label{margin-bottom:8px}.site-title{font-size:1.4rem}.site-subtitle{margin-top:10px}.books-container{grid-template-columns:repeat(2,1fr);gap:1rem}.book-box{max-width:none}.viewer-header{padding:.75rem 1rem;flex-direction:row}.flipbook-wrapper{padding:.5rem}.viewer-controls{padding:.75rem;gap:.5rem}.control-btn{min-height:40px;padding:.5rem 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