.iaos-page{padding:4rem 0}.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;grid-gap:4rem;gap:4rem;align-items:center;margin-bottom:5rem}@media (max-width:1024px){.intro-grid{grid-template-columns:1fr;gap:3rem}}.intro-content{display:flex;flex-direction:column;gap:1.5rem}.intro-title{font-size:2.75rem;font-weight:800;line-height:1.2}.intro-desc{font-size:1.1rem;color:var(--text-muted);line-height:1.7}.intro-visual{display:flex;justify-content:center}.visual-box{background-color:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:2.5rem;width:100%;max-width:440px;box-shadow:0 8px 30px rgba(0,0,0,.3)}.visual-box h3{font-size:1.35rem;margin-bottom:1rem;color:var(--primary);border-bottom:1px solid var(--border);padding-bottom:.5rem}.visual-box ul{list-style:none;display:flex;flex-direction:column;gap:.8rem}.visual-box li{font-size:.95rem;color:var(--text-muted);display:flex;align-items:flex-start;gap:.5rem}.visual-box li strong{color:var(--text-main)}.principles-section{background-color:#080c14;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.principles-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:2rem;gap:2rem}@media (max-width:1024px){.principles-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.principles-grid{grid-template-columns:1fr}}.principle-card{display:flex;flex-direction:column;gap:1rem}.principle-icon{width:44px;height:44px;border-radius:8px;background-color:rgba(56,189,248,.1);color:var(--primary);display:flex;align-items:center;justify-content:center}.principle-card h3{font-size:1.25rem;font-weight:600}.principle-card p{color:var(--text-muted);font-size:.95rem;line-height:1.6}.arch-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:4rem;gap:4rem;align-items:center}@media (max-width:1024px){.arch-grid{grid-template-columns:1fr;gap:3rem}}.arch-visual{display:flex;flex-direction:column;gap:.75rem}.arch-layer{padding:1.25rem;background-color:var(--bg-card);border:1px solid var(--border);border-radius:8px;display:flex;justify-content:space-between;align-items:center;transition:all .2s ease}.arch-layer:hover{border-color:var(--primary);transform:translateX(4px)}.arch-layer-info{display:flex;align-items:center;gap:1rem}.arch-num{font-family:var(--font-mono);font-weight:700;color:var(--primary)}.arch-name{font-weight:600}.arch-tag{font-size:.75rem;color:var(--text-muted);font-family:var(--font-mono)}