.pbp-book{--route-red:#e94134;--route-cream:#fff8e8}
.pbp-book .award{background:#09215a;border-left-color:var(--route-red)}
.pbp-book .hero-copy{background:linear-gradient(145deg,#fff 0%,#fff8e8 60%,#eef2ff 100%)}
.pbp-book .hero h1 em{color:var(--route-red)}
.pbp-book .cover-panel{background:linear-gradient(150deg,#08184e 0%,#1237c9 58%,#e94134 160%)}
.pbp-book .cover-panel:after{content:"1200";position:absolute;right:-.05em;bottom:-.18em;color:rgba(255,255,255,.07);font-size:clamp(180px,28vw,420px);font-weight:900;letter-spacing:-.09em}
.pbp-book .cover-frame{transform:rotate(-1.4deg);box-shadow:24px 28px 0 rgba(0,0,0,.28)}
.pbp-book .route-mark{position:relative;z-index:2;margin-bottom:22px;color:#fff;font-size:10px;letter-spacing:.18em;font-weight:800}.pbp-book .route-mark span{color:#ffb000;padding:0 8px}
.pbp-book .beginner-note{border-left-color:var(--route-red)}.pbp-book .beginner-note strong{color:var(--route-red)}
.pbp-book .quick-facts article small{color:#ffcc5c}
.pbp-book .section-heading{background:linear-gradient(150deg,#08184e,#1237c9)}
.pbp-book .quote{background:#fff0ce}.pbp-book .quote strong{color:var(--route-red)}
.pbp-book .guide-card{background:#eef2ff;border-color:#1237c9}
.pbp-book .book-nav{display:flex;align-items:center;gap:18px}.pbp-book .english-switch{padding:9px 13px;background:#08184e;color:#fff;font-size:11px;font-weight:800;letter-spacing:.04em}.pbp-book .english-card{background:#f1eadf;border-color:#9d2b24}.pbp-book .english-card small{color:#9d2b24}
@media(max-width:760px){.pbp-book .hero-copy{min-width:0;overflow:hidden}.pbp-book .cover-panel:after{font-size:58vw}.pbp-book .route-mark{margin-bottom:25px}.pbp-book .hero h1{max-width:100%;font-size:31px;letter-spacing:-.06em;overflow-wrap:anywhere;word-break:break-all}.pbp-book .subtitle,.pbp-book .lead,.pbp-book .beginner-note{max-width:100%;overflow-wrap:anywhere}.pbp-book .book-nav{gap:10px}.pbp-book .english-switch{padding:8px 10px;font-size:9px}.pbp-book .back{white-space:nowrap;font-size:10px}}