.book-product-hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1fr);align-items:center;gap:clamp(24px,5vw,64px);max-width:1120px;margin:0 auto 44px;padding:36px;border:1px solid #294352;border-radius:18px;background:#102736;color:#f5f2eb;font-family:Pretendard,system-ui,sans-serif}.book-product-hero *{box-sizing:border-box}.book-product-art{height:440px;display:flex;align-items:center;justify-content:center;min-width:0;background:radial-gradient(ellipse at center,#385064,#102736 72%);border-radius:12px}.book-product-art>img{display:block;width:auto;height:auto;max-width:84%;max-height:92%;object-fit:contain;box-shadow:10px 16px 24px #0005}.book-product-copy{min-width:0}.book-product-copy .book-product-category{font-size:12px;color:#eac09d;margin:0 0 14px;letter-spacing:.08em}.book-product-copy h1{color:#fff;font-size:clamp(27px,3vw,38px);font-weight:750;letter-spacing:-.045em;line-height:1.3;margin:0;word-break:keep-all;overflow-wrap:anywhere}.book-product-copy .book-product-subtitle{font-size:15px;line-height:1.55;color:#c1d1d8;margin:10px 0 0}.book-product-copy .book-product-summary{font-size:15px;line-height:1.75;color:#d0dce0;margin:20px 0}.book-product-copy .book-product-spec{font-size:12px;line-height:1.7;color:#b9cbd1;margin:0 0 20px}.book-product-price{display:flex;align-items:center;flex-wrap:wrap;gap:8px 15px;border-top:1px solid #ffffff29;padding-top:20px;margin-bottom:20px}.book-product-price strong{font-size:30px;line-height:1.2;color:#f5cfaa}.book-product-price span{font-size:11px;color:#b9cbd1}.book-product-actions{display:flex;flex-wrap:wrap;gap:10px}.book-product-actions>a,.book-product-actions>button{display:flex;align-items:center;justify-content:center;gap:8px;flex:1;min-width:135px;min-height:52px;padding:12px 16px;border:1px solid #78929e;border-radius:8px;background:transparent;color:#f5f2eb!important;text-decoration:none!important;font:inherit;font-size:14px;font-weight:650;line-height:1.5;cursor:pointer}.book-product-actions>.book-product-primary{background:#efbc8a;border-color:#efbc8a;color:#172b34!important}.book-product-actions>button:disabled{opacity:.65;cursor:default}.book-product-copy .book-product-note{font-size:11px;color:#b7cbd0;line-height:1.7;margin:13px 0}.book-product-more{display:inline-flex;padding:10px 0;color:#dbe7ea!important;font-size:12px;text-decoration:none}.book-details-heading{max-width:1120px;margin:0 auto 20px;padding:20px 0 15px;border-top:1px solid #6c829144;display:flex;align-items:center;justify-content:space-between;gap:16px;scroll-margin-top:100px;color:inherit}.book-details-heading h2{font-size:20px;margin:0!important;letter-spacing:-.03em}.book-details-heading span{font-size:12px;opacity:.7}.book-product-hero :focus-visible{outline:3px solid #f5cfaa;outline-offset:4px}.nc-book-page{max-width:1230px;margin:auto;padding:40px 28px 70px}.nc-book-page .breadcrumb{padding:0;margin:0 0 25px}.nc-book-page .book-product-hero{max-width:none}body:has(.book-product-hero) .intro-toolbar,body:has(.book-product-hero) .intro-detail>.intro-sr{display:none}body:has(.book-product-hero) .intro-detail{padding-top:0}
@media(max-width:640px){.book-product-hero{grid-template-columns:1fr;gap:18px;border-radius:0;border-left:0;border-right:0;padding:22px 22px 24px;margin-bottom:28px}.book-product-art{height:200px}.book-product-art>img{max-height:100%;max-width:75%}.book-product-copy h1{font-size:27px}.book-product-copy .book-product-category{margin-bottom:9px}.book-product-copy .book-product-summary{margin:14px 0;font-size:14px}.book-product-copy .book-product-spec{margin-bottom:16px}.book-product-price{padding-top:16px;margin-bottom:16px}.book-product-price strong{font-size:27px}.book-product-actions>a,.book-product-actions>button{min-width:0;font-size:13px;padding:11px 9px}.book-details-heading{padding:16px 20px;margin-bottom:0}.nc-book-page{padding:24px 0 60px}.nc-book-page .breadcrumb{padding:0 20px}.book-product-copy .book-product-note{margin-bottom:0}.book-product-more{padding-top:12px}}

@media(max-width:640px){.resource-page:has(.book-product-hero) .research-account-nav{margin-bottom:4px}.resource-page:has(.book-product-hero) .resource-back{margin-bottom:12px}}

/* 책 소개·미리보기·이용 안내: 모바일에서도 한 줄에 세 메뉴를 유지한다. */
.book-tabs{max-width:1120px;margin:0 auto 48px;scroll-margin-top:90px;background:#fff;color:#173440;border:1px solid #dce3df;border-radius:14px;overflow:clip}.book-tabs [hidden]{display:none!important}.book-tab-list{display:grid;grid-template-columns:1fr 1fr 1fr;background:#f5f6f2;border-bottom:1px solid #dce3df}.book-tab-list>button{appearance:none;min-width:0;min-height:64px;margin:0;padding:16px 8px;border:0;border-bottom:3px solid transparent;border-radius:0;background:transparent;color:#68766f;font:inherit;font-size:16px;font-weight:600;cursor:pointer;white-space:nowrap}.book-tab-list>button[aria-selected=true]{background:#fff;border-bottom-color:#254c43;color:#173f32;font-weight:750}.book-tabs :focus-visible{outline:3px solid #bb491f;outline-offset:-4px}.book-tab-panel{outline:0;min-height:280px}.book-tab-panel:not(#book-info){padding:36px}.book-tabs .section,.book-tabs .book-copy-section{max-width:none;margin:0;padding:36px;border:0}.book-tab-panel:not(#book-info)>.section,.book-tab-panel:not(#book-info)>.book-copy-section{padding:0 0 32px}.book-tabs h2{font-size:26px;line-height:1.45;letter-spacing:-.045em;color:#173440;margin:0 0 20px}.book-tabs h3{font-size:18px;color:#173440;margin:28px 0 12px}.book-tabs p,.book-tabs .resource-description,.book-tabs .description-body p{font-size:15px;line-height:1.9;color:#4e6259}.book-tabs .resource-description,.book-terms{white-space:pre-line}.book-section-kicker{font-size:10px!important;letter-spacing:.13em;color:#a65d35!important;margin:0 0 12px!important}.book-tabs .book-guide .eyebrow,.book-tabs .eyebrow{color:#9b5c36}.book-tabs .guide-benefits{gap:14px}.book-tabs .guide-benefits article{background:#f4f6f1;border:1px solid #e2e7de;border-radius:9px}.book-tabs .guide-benefits p{color:#314c3e}.book-tabs .description{border-top:1px solid #e3e8e1;display:block}.book-tabs .description h2 br{display:none}.book-tabs details{border-color:#dce4dc}.book-tabs summary{color:#294638;cursor:pointer}.book-tabs .included-grid{gap:14px}.book-tabs .included-grid article{background:#f5f7f1;border:1px solid #dfe6dc;color:#294638;border-radius:9px}.book-tabs .included-grid h3{margin-top:10px}.book-tabs .included-grid article>span{color:#52684f}.book-tabs .scene-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.book-tabs .scene-gallery button{min-width:0;border:1px solid #e0e4dc;border-radius:8px;background:#f3f4f0;overflow:hidden;cursor:pointer}.book-tabs .scene-gallery img{display:block;width:100%;height:auto;object-fit:contain}.book-tabs .scene-gallery span{display:flex;justify-content:space-between;padding:12px 14px;color:#46634e}.book-tabs .scene-gallery b{font-size:12px}.book-tabs .scenes .section-heading{align-items:start}.book-tabs .section-heading span{font-size:12px;color:#687b70}.book-preview-read{padding:28px;background:#edf3ee;border-radius:12px;margin-top:24px}.book-preview-read h2{font-size:21px;margin-bottom:8px}.book-preview-read p{margin:0 0 16px}.book-tabs .button,.book-tabs .resource-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border:1px solid #254c43;border-radius:7px;background:#254c43;color:#fff;font:inherit;font-size:14px;font-weight:650;text-decoration:none;cursor:pointer}.book-tabs .resource-scenes{margin:0;border:0;padding:0;background:transparent}.book-tabs .resource-scenes h2{color:#173440}.book-tabs .resource-scenes-heading p{color:#52685d}.book-tabs .resource-scenes-stage{background:#f1f3ed;border:1px solid #dce4d8}.book-tabs .resource-scenes-nav{color:#254c43}.book-tabs .resource-scene-thumbs button{background:#eff3ec;color:#365844;border-color:#d1ddce}.book-tabs .resource-scene-thumbs button[aria-pressed=true]{background:#254c43;color:#fff}.book-tabs .book-preview-note{margin:24px 0 0;font-size:13px}.book-facts{margin:0 0 30px}.book-facts>div{display:grid;grid-template-columns:100px 1fr;gap:18px;border-bottom:1px solid #e0e6dd;padding:16px 0;font-size:14px;line-height:1.8}.book-facts dt{font-weight:650;color:#254c43}.book-facts dd{margin:0;color:#526659}.book-policy-link{display:inline-flex;align-items:center;min-height:44px;color:#254c43!important;font-size:14px;text-decoration:underline!important;text-underline-offset:4px}.book-tabs .faq,.book-tabs .launch-note{display:block}.book-tabs .launch-note{margin-top:24px;padding:24px!important;background:#f3f5ee;border-radius:12px}.book-tabs .launch-note h2{font-size:22px}.book-tabs .faq{margin-top:32px}.book-tabs .faq details{padding:16px 0;border-bottom:1px solid #dce3d9}.book-tabs .faq summary{display:flex;justify-content:space-between;gap:12px}.book-tabs .intro-detail{margin:0 auto;padding-bottom:0}.book-tabs .intro-read:empty{display:none}.book-product-dock{display:none}.book-related{max-width:1120px;margin:48px auto 0}.book-related h2{font-size:23px}.book-related .product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:640px){.book-tabs{margin-bottom:28px;border-radius:0;border-left:0;border-right:0;scroll-margin-top:72px}.book-tab-list>button{min-height:56px;font-size:13px;padding:14px 4px}.book-tab-panel:not(#book-info){padding:24px 20px}.book-tabs .section,.book-tabs .book-copy-section{padding:26px 20px}.book-tabs h2{font-size:22px}.book-tabs p,.book-tabs .resource-description,.book-tabs .description-body p{font-size:14px;line-height:1.9}.book-tabs .scene-gallery{gap:12px}.book-tabs .scenes .section-heading{display:block}.book-tabs .scene-gallery span{padding:10px;font-size:12px}.book-preview-read{padding:20px}.book-preview-read h2{font-size:19px}.book-tabs .resource-scenes-heading{display:block}.book-tabs .resource-scenes-stage{height:420px;min-height:0}.book-tabs .resource-scenes-nav{gap:8px}.book-tabs .guide-benefits,.book-tabs .included-grid{grid-template-columns:1fr}.book-facts>div{grid-template-columns:75px 1fr;gap:14px}.book-product-dock{position:fixed;z-index:40;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 20px max(12px,env(safe-area-inset-bottom));background:#102736f5;box-shadow:0 -4px 20px #0002;color:#fff}.book-product-dock>span{min-width:0;max-width:52%;font-size:11px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-product-dock strong{display:block;color:#efbc8a;font-size:17px}.book-product-dock>a,.book-product-dock>button{flex:none;display:flex;align-items:center;justify-content:center;min-width:130px;min-height:46px;padding:12px 18px;border:0;border-radius:7px;background:#efbc8a;color:#173440;font:inherit;font-size:14px;font-weight:700;text-decoration:none}.book-product-dock>button:disabled{background:#65757a;color:#f5f2eb;cursor:default}.book-related{padding:0 20px}.book-related .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body:has(.book-tabs){padding-bottom:82px}body:has(.book-tabs) .bottom-nav,body:has(.book-tabs) .resource-mobile-purchase{display:none!important}}

/* 구성 안내는 제목과 설명을 나누고 카드 안쪽 여백을 확보한다. */
.book-tabs .included-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}
.book-tabs .included-grid article{padding:26px 24px;min-width:0;background:#f7f8f4;border-color:#e0e6dc}
.book-tabs .included-grid article>span{display:block;margin:0 0 14px;font-size:11px;font-weight:650;line-height:1.4;letter-spacing:.08em;color:#7b8776}
.book-tabs .included-grid h3{margin:0 0 14px;font-size:19px;line-height:1.45;letter-spacing:-.035em;word-break:keep-all}
.book-tabs .included-grid p{margin:0;font-size:15px;line-height:1.7;letter-spacing:-.02em;word-break:keep-all;overflow-wrap:break-word}
.book-tabs .included-grid p+p{margin-top:9px}
.book-tabs #book-usage>.book-copy-section{padding-top:12px;padding-bottom:20px}
.book-tabs #book-usage .faq h2 br{display:none}
.book-tabs #book-usage .faq{margin-top:20px}
.book-tabs .book-facts>div{padding:20px 0;font-size:15px;line-height:1.75}
@media(max-width:760px){.book-tabs .included-grid{grid-template-columns:1fr;gap:12px}.book-tabs .included-grid article{padding:22px}.book-tabs .included-grid article>span{margin-bottom:10px}.book-tabs .included-grid h3{font-size:18px;margin-bottom:10px}.book-tabs .included-grid p{font-size:14px;line-height:1.75}.book-tabs .book-facts>div{font-size:14px}}