.project-page-header{background:linear-gradient(180deg, #fff 0%, var(--bg-canvas) 100%);border-bottom:1px solid var(--border-subtle);padding-top:56px;padding-bottom:48px}.breadcrumbs{color:var(--text-muted);align-items:center;gap:8px;margin-bottom:24px;font-size:.8rem;display:flex}.breadcrumbs a{color:var(--text-secondary);font-weight:500}.breadcrumbs a:hover{color:var(--text-pure)}.breadcrumb-separator{color:var(--border-medium)}.project-title-area{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:16px;display:flex}.project-page-title{letter-spacing:-.035em;color:var(--text-pure);margin-bottom:12px;font-size:clamp(2.4rem,4.2vw,3.4rem);font-weight:850}.project-lead{color:var(--text-secondary);max-width:820px;margin-bottom:24px;font-size:1.15rem;line-height:1.6}.project-meta-badges{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px;display:flex}.project-quick-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.install-command-box{border:1px solid var(--border-medium);border-radius:var(--radius-sm);max-width:800px;box-shadow:var(--shadow-xs);background:#fff;justify-content:space-between;align-items:center;gap:16px;margin-top:32px;padding:14px 20px;display:flex}.install-command-text{font-family:var(--font-mono);color:var(--text-primary);white-space:nowrap;font-size:.86rem;overflow-x:auto}.copy-cmd-btn{background:var(--bg-surface-subtle);border:1px solid var(--border-medium);color:var(--text-secondary);font-family:var(--font-mono);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;align-items:center;gap:6px;padding:6px 12px;font-size:.75rem;display:inline-flex}.copy-cmd-btn:hover{background:var(--text-pure);color:#fff;border-color:var(--text-pure)}.project-content-grid{grid-template-columns:2.2fr 1fr;gap:48px;padding-top:56px;padding-bottom:72px;display:grid}.project-main-body h2{letter-spacing:-.025em;color:var(--text-pure);margin-top:40px;margin-bottom:16px;font-size:1.55rem;font-weight:800}.project-main-body h2:first-child{margin-top:0}.project-main-body p{color:var(--text-secondary);margin-bottom:20px;font-size:1.02rem;line-height:1.7}.problem-solution-duo{grid-template-columns:1fr 1fr;gap:20px;margin:32px 0;display:grid}.ps-card{border-radius:var(--radius-sm);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);background:#fff;padding:24px}.ps-card.problem{border-left:3px solid var(--accent-rose)}.ps-card.solution{border-left:3px solid var(--accent-emerald)}.ps-card h4{text-transform:uppercase;letter-spacing:.06em;font-size:.78rem;font-family:var(--font-mono);margin-bottom:8px}.ps-card.problem h4{color:var(--accent-rose)}.ps-card.solution h4{color:var(--accent-emerald)}.ps-card p{color:var(--text-secondary);margin-bottom:0;font-size:.92rem;line-height:1.6}.features-check-grid{grid-template-columns:1fr;gap:14px;margin:24px 0 36px;display:grid}.feature-check-item{border-radius:var(--radius-sm);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);background:#fff;align-items:flex-start;gap:14px;padding:18px;display:flex}.feature-check-item svg{color:var(--accent-emerald);flex-shrink:0;margin-top:2px}.feature-check-item strong{color:var(--text-pure);margin-bottom:3px;font-size:.96rem;display:block}.feature-check-item p{color:var(--text-secondary);margin-bottom:0;font-size:.88rem;line-height:1.55}.project-sidebar{flex-direction:column;gap:24px;display:flex}.sidebar-box{border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-xs);background:#fff;padding:24px}.sidebar-box h4{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);border-bottom:1px solid var(--border-subtle);margin-bottom:16px;padding-bottom:10px;font-size:.78rem}.spec-list{flex-direction:column;gap:14px;display:flex}.spec-entry{flex-direction:column;gap:2px;display:flex}.spec-entry-label{color:var(--text-muted);text-transform:uppercase;font-size:.74rem;font-family:var(--font-mono)}.spec-entry-val{color:var(--text-pure);font-size:.92rem;font-weight:550}