[hidden]{display:none!important}.reader-head{max-width:1100px;margin:28px auto 18px;padding:0 20px;display:flex;justify-content:space-between;gap:12px;align-items:center;color:#617b9b;font-size:13px}.book{margin-top:0;min-height:620px}.book.covermode{display:block;max-width:600px;min-height:0}.bookcover.cover{margin:0;display:block;padding:0;aspect-ratio:4/5;border-radius:6px 18px 18px 6px;box-shadow:none;background:#113570}.bookcover>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.bookcover:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,#071f6590 0,#0c2e5830 36%,transparent 48%,#091936d9 100%);pointer-events:none}.bookcover:before{z-index:2}.cover-overlay{position:absolute;z-index:3;top:36px;left:42px;right:30px}.cover-overlay h1{font:700 clamp(30px,4vw,43px)/1.15 Viet,Arial,sans-serif;margin:18px 0 10px;letter-spacing:-1.4px;text-shadow:0 2px 10px #11306480}.cover-overlay h1 em{color:#ffda7d;font-style:normal}.cover-overlay p{font-size:15px;line-height:1.6;margin:0;color:#eff5ff}.cover-bottom{position:absolute;z-index:3;bottom:30px;left:42px;right:35px}.cover-author{margin-top:0;letter-spacing:1.5px;font-size:17px}.cover-meta{margin-top:6px;color:#e8f0ff}.cover-bottom button{padding:10px 18px;margin-top:13px}.visual{justify-content:flex-start;padding:32px}.visual h2{font-size:28px;line-height:1.3;margin:18px 0 24px}.visual figure{margin:0}.visual figure img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:9px;border:1px solid #a7c9ef55}.visual figcaption{font-size:12px;color:#d3e4f8;margin-top:12px;line-height:1.7}.visual .signature{margin-top:auto;padding-top:25px}.sheet h2{font-size:27px}.sheet{padding:35px 38px}.sheet p{font-size:16px;line-height:1.8}.sheet .lead{font-size:18px}.reading-progress{height:4px;max-width:1060px;margin:10px auto 22px;background:#d4e2f5;border-radius:8px;overflow:hidden}.reading-progress>div{height:100%;background:#2d71bf;transition:width .3s}.controls{margin-bottom:12px}.text-button{border:0;background:none;padding:0;text-decoration:underline;font-size:inherit;color:#245f9e}.text-button:hover{background:none;color:#0f315e}.dialogtop{display:flex;gap:16px;justify-content:space-between;align-items:center}.dialogtop h2{font-size:23px}.dialogtop button{padding:6px 12px}#gate{max-width:740px;width:calc(100% - 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