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var(--transition);cursor:pointer}.module-pager-link:hover{border-color:var(--yellow);box-shadow:var(--shadow-md);color:var(--text-primary);transform:translateY(-2px)}.module-pager-link.next{text-align:right;margin-left:auto}.module-pager-label{display:block;font-size:.68rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:3px}.module-pager-title{display:block;font-size:.875rem;font-weight:700;color:var(--text-primary);line-height:1.35}.back-to-top{position:fixed;bottom:24px;right:24px;z-index:150;width:44px;height:44px;border-radius:50%;background:var(--text-primary);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;border:none;cursor:pointer}.back-to-top.visible{opacity:1;visibility:visible;transform:none}.back-to-top:hover{background:var(--yellow);color:var(--text-primary)}.not-found-icon{width:72px;height:72px;border-radius:50%;background:var(--yellow-light);border:1px solid rgba(245,197,24,.3);color:var(--yellow-hover);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}.not-found-code{font-size:3rem;font-weight:800;color:var(--yellow-hover);line-height:1;margin-bottom:10px;letter-spacing:-.03em}.not-found-page .btn{display:inline-flex}@media (max-width: 1024px){.hero-title{font-size:2.5rem}.hero-card-group{width:300px}.hero-card-main{width:230px}.modules-grid{grid-template-columns:repeat(2,1fr)}.detail-grid{grid-template-columns:1fr 300px}}@media (max-width: 860px){.hero-inner{grid-template-columns:1fr;gap:48px}.hero-visual{order:-1}.hero-title{font-size:2.2rem}.resources-grid{grid-template-columns:repeat(2,1fr)}.manual-inner{grid-template-columns:1fr;text-align:center}.manual-desc{margin:0 auto}.about-inner{grid-template-columns:1fr;gap:40px}.detail-grid{grid-template-columns:1fr}.module-hero-card{flex-direction:column;gap:16px;padding:28px}.footer-inner{flex-direction:column;gap:28px}}@media (max-width: 640px){.nav{display:none}.hamburger{display:flex}.container{padding:0 20px}.logo-dots{width:38px;height:38px}.logo-name.ddi-name{font-size:.88rem}.section{padding:64px 0}.hero{padding:56px 0 52px}.hero-title{font-size:1.9rem}.hero-card-group{display:none}.modules-grid,.resources-grid{grid-template-columns:1fr}.section-title{font-size:1.7rem}.manual-title{font-size:1.6rem}.module-detail-page{padding:28px 0 64px}.module-hero-title{font-size:1.55rem}.detail-card{padding:20px}.footer-bottom{flex-direction:column;gap:8px;text-align:center}.module-pager{flex-direction:column}.module-pager-link,.module-pager-link.next{max-width:100%;width:100%;margin-left:0}.back-to-top{bottom:18px;right:18px;width:40px;height:40px}}