:root{--bg:#fff5f8;--card-bg:#ffffff;--text:#333;--text-light:#666;--accent:#ff69b4;--accent-dark:#d6408f;--border:#ffd1e8;--header-bg:#ff69b4;--header-text:#fff;}body.dark{--bg:#1a0d12;--card-bg:#2a1a22;--text:#f0e0e8;--text-light:#c0a0b0;--accent:#ff8ac4;--accent-dark:#e04a9a;--border:#4a2a3a;--header-bg:#c03a7a;--header-text:#ffe6f0;}*{margin:0;padding:0;box-sizing:border-box;}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;}header{background:var(--header-bg);color:var(--header-text);padding:0.8rem 1rem;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;}.site-title{font-size:1.5rem;font-weight:bold;color:white;text-decoration:none;}nav a{color:white;margin:0 0.9rem;text-decoration:none;font-weight:500;}nav a:hover{text-decoration:underline;}.theme-toggle{background:rgba(255,255,255,0.25);border:none;color:white;padding:0.5rem 0.9rem;border-radius:999px;cursor:pointer;font-size:0.95rem;}.theme-toggle:hover{background:rgba(255,255,255,0.4);}.container{max-width:1200px;margin:1.5rem auto;padding:0 1rem;}.hot-section{margin-bottom:2.5rem;}.section-title{color:var(--accent);margin-bottom:1rem;font-size:1.4rem;font-weight:600;}.grid-5{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem;}.book-card{background:var(--card-bg);border-radius:8px;overflow:hidden;border:1px solid var(--border);transition:transform 0.15s,box-shadow 0.15s;text-decoration:none;}.book-card:hover{transform:translateY(-4px);box-shadow:0 8px 16px rgba(0,0,0,0.12);}.book-cover{width:100%;aspect-ratio:3/4;object-fit:cover;background:#fff;padding:6px;}.book-info{padding:0.7rem;text-align:center;}.book-title{font-size:0.95rem;margin-bottom:0.3rem;color:var(--accent);font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}.book-author{font-size:0.82rem;color:var(--text-light);}.rank-lists{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.5rem;margin:2rem 0;}.rank-column h3{color:var(--accent);margin-bottom:0.8rem;font-size:1.15rem;}.rank-item{padding:0.6rem 0;border-bottom:1px solid var(--border);font-size:0.95rem;}.rank-item a{color:var(--text);text-decoration:none;}.rank-item a:hover{color:var(--accent);}.rank-date{float:right;color:var(--text-light);font-size:0.85rem;}.updates-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:1.2rem;margin-bottom:2rem;}.update-item{background:var(--card-bg);padding:1rem;border-radius:8px;border:1px solid var(--border);}.update-title a{color:var(--accent);margin-bottom:0.4rem;text-decoration:none;}.update-meta{color:var(--text-light);font-size:0.9rem;}.site-intro{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:1.5rem;margin-bottom:2.5rem;line-height:1.6;position: relative; padding: 1.5rem; overflow: hidden;}.site-intro h3{color:var(--accent);font-size:1.2rem;margin-bottom:0.8rem;font-weight:600;}.site-intro p{color:var(--text);font-size:0.95rem;margin-bottom:0.6rem;}footer{text-align:center;padding:2rem 1rem;color:var(--text-light);font-size:0.9rem;border-top:1px solid var(--border);margin-top:3rem;}.float-btn{position:fixed;top:50%;transform:translateY(-50%);background:rgba(255,105,180,0.9);color:#fff;border:none;width:55px;height:90px;font-size:42px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:1000;border-radius:12px;box-shadow:0 6px 20px rgba(0,0,0,0.25);transition:background 0.2s,transform 0.2s;user-select:none;text-decoration:none;}.float-btn:hover{background:var(--accent);transform:translateY(-50%) scale(1.08);}.float-btn:active{transform:translateY(-50%) scale(0.95);}.prev{left:20px;}.next{right:20px;}.pagination{display:flex;justify-content:center;gap:0.4rem;margin-top:2.5rem;flex-wrap:wrap;}.pagination a,.pagination span{padding:0.45rem 0.75rem;border:1px solid var(--border);border-radius:6px;text-decoration:none;font-size:0.9rem;color:var(--text);}.pagination .current{background:var(--accent);color:#fff;border-color:var(--accent);}.pagination a:hover{background:var(--accent);color:#fff;}@media (max-width:768px){.container{margin:0.8rem auto;padding:0 0.5rem;width:100%;max-width:100%;}header{padding:0.6rem 0.5rem;flex-direction:column;gap:0.8rem;align-items:flex-start;}.site-title{width:100%;text-align:center;font-size:1.3rem;}nav{width:100%;font-size:0.85rem;display:flex;flex-wrap:wrap;gap:0.5rem 0.8rem;}nav a{margin:0;}.theme-toggle{align-self:flex-end;margin-top:-2.8rem;padding:0.4rem 0.7rem;font-size:0.85rem;}.hot-section{margin-bottom:2rem;}.section-title{font-size:1.2rem;margin-bottom:0.8rem;}.grid-5{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:0.6rem;}.book-cover{padding:4px;}.book-info{padding:0.5rem;}.book-title{font-size:0.85rem;}.book-author{font-size:0.75rem;}.rank-lists{grid-template-columns:1fr;gap:1rem;margin:1.5rem 0;}.rank-column h3{font-size:1.05rem;margin-bottom:0.6rem;}.rank-item{font-size:0.85rem;padding:0.5rem 0;}.rank-date{font-size:0.75rem;}.updates-grid{grid-template-columns:1fr;gap:0.8rem;margin-bottom:1.5rem;}.update-item{padding:0.8rem;}.update-title a{font-size:0.9rem;}.update-summary{font-size:0.85rem;}.update-meta{font-size:0.8rem;}.site-intro{padding:1rem;margin-bottom:2rem;}.site-intro h3{font-size:1.1rem;margin-bottom:0.6rem;}.site-intro p{font-size:0.85rem;}footer{padding:1.5rem 0.5rem;font-size:0.8rem;margin-top:2rem;}.float-btn{width:45px;height:70px;font-size:32px;}.prev{left:10px;}.next{right:10px;}}@media (max-width:480px){.grid-5{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:0.5rem;}header{padding:0.5rem 0.4rem;}.theme-toggle{margin-top:-2.5rem;padding:0.3rem 0.6rem;font-size:0.8rem;}.site-intro{padding:0.8rem;}}.intro-expandable{max-height:10px;overflow:hidden;transition:max-height 0.45s ease-out;position:relative;}.intro-expandable::after{content:"";position:absolute;bottom:0;left:0;right:0;height:90px;background:linear-gradient(to bottom,transparent 20%,var(--card-bg) 70%);pointer-events:none;transition:opacity 0.4s ease;}#intro-toggle:checked ~ .intro-expandable{max-height:4000px;}#intro-toggle:checked ~ .intro-expandable::after{opacity:0;}.intro-toggle-label{display:block;margin-top:0.8rem;text-align:center;color:var(--accent);font-weight:600;cursor:pointer;padding:0.6rem;transition:all 0.2s;}.intro-toggle-label:hover{color:var(--accent-dark);}.intro-toggle-label::before{content:"Xem thêm ▼";}#intro-toggle:checked ~ .intro-toggle-label::before{content:"Thu gọn ▲";}nav a.active { background: rgba(255, 255, 255, 0.25); border: none; color: var(--header-text); padding: 0.5rem 0.9rem; border-radius: 999px; cursor: pointer; font-size: 0.9rem; }