:root{--bg-color:#0a0a0f;--text-primary:#f0f0f5;--text-secondary:#9aa0a6;--accent-starlink:#1e90ff;--accent-gpon:#0f8;--card-bg:#ffffff08;--card-border:#ffffff14;--glass-blur:blur(12px)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);background-image:radial-gradient(circle at 50% 0,#1e90ff26 0%,#0000 50%),radial-gradient(circle at 50% 100%,#00ff881a 0%,#0000 50%);background-attachment:fixed;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6;overflow-x:hidden}.app-container{flex-direction:column;align-items:center;max-width:1000px;margin:0 auto;padding:4rem 2rem;display:flex}.header{text-align:center;margin-bottom:6rem;animation:1s ease-out fadeInDown}.header h1{background:linear-gradient(135deg,#fff 0%,#a5b4fc 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1rem;font-size:3.5rem;font-weight:800}.header p{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.25rem}.flow-container{flex-direction:column;align-items:center;width:100%;display:flex;position:relative}.flow-line{background:linear-gradient(to bottom, var(--accent-starlink) 0%, var(--accent-gpon) 100%);z-index:0;opacity:.3;border-radius:4px;width:4px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%)}.flow-line-active{background:linear-gradient(to bottom, var(--accent-starlink) 0%, var(--accent-gpon) 100%);z-index:1;border-radius:4px;width:4px;transition:height .5s;position:absolute;top:0;left:50%;transform:translate(-50%);box-shadow:0 0 15px #00ff8880}.device-node{z-index:2;opacity:0;justify-content:flex-end;width:100%;margin-bottom:6rem;transition:all .8s cubic-bezier(.16,1,.3,1);display:flex;position:relative;transform:translateY(50px)}.device-node.visible{opacity:1;transform:translateY(0)}.device-node.even{justify-content:flex-start}.device-card{background:var(--card-bg);width:calc(50% - 3rem);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--card-border);cursor:pointer;border-radius:20px;padding:2rem;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;box-shadow:0 10px 30px #0003}.device-card:hover{border-color:#00ff8880;transform:translateY(-5px);box-shadow:0 15px 40px #0f83}.device-node.even .device-card{text-align:right}.device-node:after{content:"";background:var(--bg-color);border:4px solid var(--accent-starlink);z-index:3;border-radius:50%;width:24px;height:24px;transition:all .3s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 4px #1e90ff33}.device-node.gpon-phase:after{border-color:var(--accent-gpon);box-shadow:0 0 0 4px #0f83}.device-node:hover:after{transform:translate(-50%,-50%)scale(1.3)}.device-image-container{background:#0000004d;border-radius:12px;justify-content:center;align-items:center;width:100%;height:200px;margin-bottom:1.5rem;display:flex;overflow:hidden}.device-image{object-fit:cover;width:100%;height:100%;transition:transform .5s}.device-card:hover .device-image{transform:scale(1.05)}.icon-placeholder{color:var(--text-secondary);opacity:.5}.device-tag{text-transform:uppercase;letter-spacing:1px;border-radius:50px;margin-bottom:1rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-block}.tag-starlink{color:var(--accent-starlink);background:#1e90ff1a;border:1px solid #1e90ff4d}.tag-gpon{color:var(--accent-gpon);background:#00ff881a;border:1px solid #00ff884d}.device-title{color:#fff;margin-bottom:1rem;font-size:1.5rem;font-weight:700}.device-desc{color:var(--text-secondary);font-size:.95rem}@media (width<=768px){.flow-line,.flow-line-active{left:2rem}.device-node,.device-node.even{justify-content:flex-end}.device-card{width:calc(100% - 5rem)}.device-node.even .device-card{text-align:left}.device-node:after{left:2rem}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.modal-overlay{-webkit-backdrop-filter:blur(8px);z-index:1000;background:#000c;justify-content:center;align-items:center;padding:2rem;animation:.3s ease-out fadeInDown;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-color);border:1px solid #00ff884d;border-radius:20px;width:100%;max-width:600px;padding:3rem;animation:.3s ease-out modalFadeIn;position:relative;box-shadow:0 20px 50px #00000080,0 0 20px #00ff881a}.modal-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:.5rem;transition:all .2s;display:flex;position:absolute;top:1.5rem;right:1.5rem}.modal-close:hover{color:#fff;background:#ffffff1a}.modal-tag{text-transform:uppercase;letter-spacing:1px;color:var(--accent-gpon);background:#00ff881a;border:1px solid #00ff884d;border-radius:50px;margin-bottom:1rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-block}.modal-title{color:#fff;margin-bottom:1.5rem;font-size:2rem;font-weight:800}.modal-desc{color:var(--text-primary);margin-bottom:2rem;font-size:1.15rem;line-height:1.8}.modal-instruction{color:var(--text-secondary);text-align:center;margin-top:1rem;font-size:.9rem;font-style:italic;display:block}