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var(--border);cursor:pointer;transition:all var(--t-fast);display:flex;align-items:center;justify-content:space-between}.font-option:hover:not(.active){border-color:var(--border-2);background:var(--bg-2)}.font-option.active{border-color:var(--accent);background:var(--accent-dim)}.font-option-name{font-size:13px;font-weight:600;color:var(--text)}.font-option-preview{font-size:13px;color:var(--text-2)}.slider-control{display:flex;flex-direction:column;gap:8px}.slider-header{display:flex;align-items:center;justify-content:space-between}.slider-value{font-size:13px;font-weight:600;color:var(--accent);min-width:36px;text-align:right}.slider-row{display:flex;align-items:center;gap:10px}.slider-btn{width:30px;height:30px;border-radius:var(--radius-sm);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:var(--text-2);transition:all var(--t-fast);flex-shrink:0}.slider-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}input[type=range]{flex:1;-webkit-appearance:none;height:4px;background:var(--bg-4);border-radius:2px;outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);cursor:pointer;box-shadow:0 2px 6px #6366f166;transition:transform var(--t-fast)}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.search-panel{position:absolute;top:0;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--border);padding:10px 16px;display:flex;align-items:center;gap:8px;z-index:50;animation:slideDown .2s ease;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.search-input-wrap{flex:1;display:flex;align-items:center;gap:8px;background:var(--bg-3);border:1.5px solid var(--border);border-radius:var(--radius-full);padding:6px 14px;transition:border-color var(--t-fast)}.search-input-wrap:focus-within{border-color:var(--accent)}.search-icon{color:var(--text-3);font-size:14px;flex-shrink:0}.search-input{background:none;border:none;outline:none;flex:1;font-size:14px;color:var(--text)}.search-input::placeholder{color:var(--text-3)}.search-nav{display:flex;align-items:center;gap:4px}.search-count{font-size:12px;color:var(--text-3);white-space:nowrap;padding:0 4px}.toast{position:fixed;bottom:60px;left:50%;transform:translate(-50%) translateY(20px);background:var(--bg-2);color:var(--text);padding:10px 20px;border-radius:var(--radius-full);font-size:13px;font-weight:500;box-shadow:var(--shadow-lg);border:1px solid var(--border);z-index:500;opacity:0;transition:all var(--t-normal);white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:99;animation:fadeIn .2s ease}.reader-error{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-2);padding:40px;text-align:center}.reader-error-icon{font-size:48px;opacity:.5}.reader-error h3{font-size:18px;font-weight:600;color:var(--text)}.reader-error p{font-size:14px;line-height:1.6}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.flex{display:flex}.flex-1{flex:1}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-3{gap:12px}@media (max-width: 768px){.library-hero{padding:32px 20px 40px}.library-body{padding:20px 16px 40px}.books-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}.toc-sidebar{position:fixed;top:0;left:0;height:100vh;z-index:100;width:var(--sidebar-w)!important;transform:translate(-100%);transition:transform var(--t-normal);opacity:1!important}.toc-sidebar.open{transform:translate(0)}.toc-sidebar.closed{transform:translate(-100%)}.sidebar-overlay{display:block}.settings-panel{width:100%;max-width:380px}.nav-arrow{display:none}.toolbar-title{font-size:13px}}@media (max-width: 480px){.books-grid{grid-template-columns:repeat(2,1fr);gap:12px}.library-hero h1{font-size:24px}.dropzone{padding:28px 16px}}