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72px);border-top:1px solid var(--color-border-subtle);background:var(--color-bg-subtle);color:var(--color-text-secondary);font-size:.875rem}.viewer-footer p{gap:var(--space-1) var(--space-5);flex-wrap:wrap;width:min(1200px,100%);margin:0 auto;display:flex}@media (max-width:760px){.viewer-header{padding:0 var(--space-3);gap:var(--space-2)}.app-title-text span{display:none}.viewer-nav-link{min-width:52px;padding:var(--space-1);flex-direction:column;gap:0;font-size:.75rem;line-height:1.3}.viewer-main{padding:var(--space-4) var(--space-4) var(--space-8)}}@media (max-width:420px){.app-title-text{display:none}}.latest{gap:var(--space-6);padding:var(--space-5);border-radius:var(--radius-12);background:var(--color-bg-subtle);grid-template-columns:minmax(0,360px) minmax(0,1fr);align-items:start;display:grid}.latest-cover{border-radius:var(--radius-4);box-shadow:var(--page-shadow);background:#fff;display:block;overflow:hidden}.latest-cover 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var(--blue-800);background:#0031d81f}.leaf{width:50%;height:100%;transform-style:preserve-3d;z-index:2;animation-timing-function:cubic-bezier(.45,.05,.35,1);animation-fill-mode:forwards;position:absolute;top:0}.leaf-toRight{transform-origin:100%;animation-name:flip-to-right;left:0}.leaf-toLeft{transform-origin:0;animation-name:flip-to-left;right:0}.leaf-face{backface-visibility:hidden;position:absolute;inset:0}.leaf-back{transform:rotateY(180deg)}@keyframes flip-to-right{0%{transform:rotateY(0)}to{transform:rotateY(180deg)}}@keyframes flip-to-left{0%{transform:rotateY(0)}to{transform:rotateY(-180deg)}}.strip{position:relative}.strip-slot{position:absolute;inset:0}.stage-arrow{border-radius:var(--radius-8);width:48px;height:72px;color:var(--color-text);box-shadow:var(--shadow-1);cursor:pointer;z-index:3;background:#ffffffd1;border:0;place-items:center;margin-top:-36px;display:grid;position:absolute;top:50%}.stage-arrow:hover{color:var(--color-primary);background:#fff}.stage-arrow:disabled{opacity:0;pointer-events:none}.stage-arrow-left{left:var(--space-2)}.stage-arrow-right{right:var(--space-2)}@media (max-width:640px){.stage-arrow{background:#fff9;width:36px;height:56px;margin-top:-28px}}.reader-bottom{align-items:center;gap:var(--space-3);min-height:60px;padding:var(--space-1) var(--space-3);padding-bottom:calc(var(--space-1) + env(safe-area-inset-bottom));background:var(--stage-bar-bg);border-top:1px solid var(--color-border-subtle);z-index:5;display:flex}.pager{align-items:center;gap:var(--space-2);flex:1;min-width:0;display:flex}.pager-range{min-width:60px;height:44px;accent-color:var(--color-primary);cursor:pointer;flex:1}.pager-label{text-align:center;min-width:7.5em;font-size:.9375rem;font-weight:700}.pager-total{color:var(--color-text-secondary);font-weight:400}.zoom-controls{align-items:center;gap:var(--space-1);display:flex}.zoom-value{border-radius:var(--radius-8);cursor:pointer;background:0 0;border:0;min-width:4.2em;min-height:44px;font-weight:700}.zoom-value:hover{background:var(--gray-50)}.icon-button:disabled{opacity:.4;cursor:default}@media (max-width:640px){.reader-bottom{gap:0 var(--space-2);flex-wrap:wrap}.zoom-controls{display:none}.pager-label{min-width:0;font-size:.875rem}}.reader-immersive .reader-top,.reader-immersive .reader-bottom,.reader-immersive .reader-highlight-bar{display:none}.panel-heading{margin-bottom:var(--space-2);font-size:1rem}.toc-list,.menu-list{gap:var(--space-2);margin:0;padding:0;list-style:none;display:grid}.toc-item,.menu-item{align-items:center;gap:var(--space-3);width:100%;min-height:52px;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border-subtle);border-radius:var(--radius-8);color:var(--color-text);text-align:left;cursor:pointer;background:#fff;font-size:1rem;text-decoration:none;display:flex}.menu-item:visited{color:var(--color-text)}.toc-item:hover,.menu-item:hover{border-color:var(--color-primary);background:var(--blue-50)}.toc-title{color:var(--color-link);text-underline-offset:3px;flex:1;font-weight:700;text-decoration:underline}.toc-page{color:var(--color-text-secondary);flex:none}.thumb-grid{gap:var(--space-4) var(--space-3);grid-template-columns:repeat(auto-fill,minmax(110px,1fr));margin:0;padding:0;list-style:none;display:grid}.thumb{align-items:center;gap:var(--space-1);width:100%;padding:var(--space-1);border-radius:var(--radius-8);cursor:pointer;background:0 0;border:2px solid #0000;flex-direction:column;display:flex}.thumb img{background:#fff;width:100%;height:auto;box-shadow:0 1px 4px #0000004d}.thumb:hover{background:var(--blue-50)}.thumb[aria-current=page]{border-color:var(--color-primary);background:var(--blue-50)}.thumb-label{font-size:.875rem}.thumb[aria-current=page] .thumb-label{color:var(--color-primary);font-weight:700}.page-text+.page-text{margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px solid var(--color-border-subtle)}.page-text h3{margin-bottom:var(--space-2)}.page-text-body{white-space:pre-wrap;word-break:break-all;font-size:1.125rem;line-height:1.9}.tour-illustration{place-items:center;min-height:220px;display:grid}.gesture{justify-items:center;gap:var(--space-2);display:grid}.gesture-phone{border:4px solid var(--gray-800);background:#fff;border-radius:20px;width:120px;height:200px;position:relative}.gesture-page{background:repeating-linear-gradient(to left, var(--gray-100) 0 3px, #fff 3px 9px);border-radius:2px;position:absolute;inset:16px 12px}.gesture-icon{color:var(--color-primary);align-content:center;place-items:center;display:grid;position:absolute;inset:0}.gesture-icon svg+svg{color:var(--gray-800);margin-top:-6px}.gesture-label{font-size:.9375rem;font-weight:700}