.books-intro{position:fixed;inset:0;z-index:2147483647;display:grid;place-items:center;width:100vw;height:100dvh;overflow:hidden;background:#050807;color:#fff;font-family:"PingFang SC","Microsoft YaHei",sans-serif}
.books-intro:fullscreen{width:100vw;height:100vh}
.books-intro-video{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;background:#050807;pointer-events:none}
.books-intro-prompt{position:relative;z-index:1;width:min(88vw,520px);padding:30px;border:1px solid #ffffff55;border-radius:20px;background:#14251de8;box-shadow:0 20px 70px #0009;text-align:center}
.books-intro-prompt[hidden]{display:none}
.books-intro-prompt p{margin:0 0 20px;font-size:clamp(19px,2vw,26px);line-height:1.5}
.books-intro-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
.books-intro-actions button{min-height:48px;padding:10px 24px;border:0;border-radius:999px;background:#f3d990;color:#394a3c;font-family:inherit;font-size:17px;font-weight:700;cursor:pointer}
.books-intro-actions .books-intro-recovery{background:#ffffff24;color:#fff}