.os-card{--c: #58a6ff;flex:0 0 calc(50% - 7px);position:relative;display:flex;flex-direction:column;align-items:center;padding:36px 16px 30px;background:var(--bg-card);border:1px solid var(--border);border-radius:18px;cursor:pointer;user-select:none;outline:none;gap:16px;overflow:hidden;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:border-color .22s,transform .22s cubic-bezier(.34,1.4,.64,1),box-shadow .22s,background .22s}@media(min-width:600px){.os-card{flex:0 0 calc(25% - 11px)}}.os-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent 0%,var(--c) 50%,transparent 100%);opacity:0;transition:opacity .22s}.os-card:after{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(ellipse at 50% -10%,var(--c) 0%,transparent 70%);opacity:0;transition:opacity .22s;pointer-events:none}.os-card:hover,.os-card:focus-visible{border-color:var(--c);transform:translateY(-8px);background:var(--bg-card-h);box-shadow:0 24px 48px #00000073,0 0 0 1px var(--c),0 0 30px -8px var(--c)}.os-card:hover:before,.os-card:focus-visible:before{opacity:.7}.os-card:hover:after,.os-card:focus-visible:after{opacity:.06}.os-card:active{transform:translateY(-4px)}.os-icon{position:relative;z-index:1;width:54px;height:54px;transition:transform .22s cubic-bezier(.34,1.4,.64,1)}.os-card:hover .os-icon{transform:scale(1.1)}.os-info{position:relative;z-index:1;text-align:center}.os-name{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:3px}.os-sub{font-size:.73rem;color:var(--text-muted)}.os-arrow{position:absolute;bottom:13px;right:13px;z-index:1;color:var(--c);opacity:0;transform:translate(-4px);transition:opacity .18s,transform .18s}.os-card:hover .os-arrow{opacity:.65;transform:translate(0)}.state-msg{text-align:center;padding:60px 20px;color:var(--text-muted);font-size:.9rem}.backdrop{position:fixed;inset:0;background:#000000b8;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:500;display:flex;align-items:center;justify-content:center;padding:16px;opacity:0;pointer-events:none;transition:opacity .2s ease}.backdrop.open{opacity:1;pointer-events:all}.modal{width:100%;max-width:470px;background:#0d1521;border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:28px;box-shadow:0 48px 96px #0009,0 0 0 1px #ffffff0a;transform:scale(.93) translateY(18px);transition:transform .28s cubic-bezier(.34,1.3,.64,1)}.backdrop.open .modal{transform:scale(1) translateY(0)}.modal-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}.modal-icon{width:34px;height:34px;flex-shrink:0}.modal-titles{flex:1;min-width:0}.modal-title{font-size:1.08rem;font-weight:600;line-height:1.3}.modal-sub{font-size:.76rem;color:var(--text-muted);margin-top:1px}.close-btn{display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:none;border:1px solid transparent;border-radius:8px;color:var(--text-muted);cursor:pointer;flex-shrink:0;transition:color .15s,background .15s,border-color .15s}.close-btn:hover{color:var(--text);background:#ffffff0f;border-color:var(--border)}.divider{height:1px;background:var(--border);margin:0 0 18px}.arch-list{display:flex;flex-direction:column;gap:7px}.arch-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;background:#ffffff08;border:1px solid var(--border);border-radius:11px;text-decoration:none;color:var(--text);transition:background .15s,border-color .15s,transform .15s;cursor:pointer}.arch-item:not(.arch-item--multi):hover{background:#58a6ff12;border-color:#58a6ff52;transform:translate(4px)}.arch-item--multi{cursor:default}.arch-item--multi:hover{background:#ffffff0a;border-color:var(--border-h)}.fmt-btn{display:inline-flex;align-items:center;padding:3px 9px;border-radius:6px;border:1px solid var(--border-h);background:#0000004d;color:var(--accent);font-family:JetBrains Mono,monospace;font-size:.68rem;text-decoration:none;transition:background .15s,border-color .15s,color .15s;white-space:nowrap}.fmt-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.arch-left{display:flex;flex-direction:column;gap:2px;min-width:0}.arch-label{font-size:.9rem;font-weight:500}.arch-file{font-family:JetBrains Mono,monospace;font-size:.7rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.arch-right{display:flex;align-items:center;gap:9px;flex-shrink:0}.dl-icon{color:#58a6ff;opacity:.45;transition:opacity .15s,transform .15s}.arch-item:not(.arch-item--multi):hover .dl-icon{opacity:1;transform:translateY(2px)}.modal-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.modal-foot-note{font-size:.74rem;color:var(--text-muted)}.chk-link{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;background:none;border:1px solid var(--border);border-radius:7px;color:var(--text-muted);font-size:.74rem;text-decoration:none;cursor:pointer;transition:color .15s,border-color .15s,background .15s}.chk-link:hover{color:var(--text);border-color:var(--border-h);background:#ffffff0a}.source-toggle{display:flex;align-items:center;gap:6px;margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}.source-label{font-size:.74rem;color:var(--text-muted);margin-right:4px;white-space:nowrap}.source-btns{display:flex;gap:2px;background:#0a1422b3;border:1px solid var(--border);border-radius:7px;padding:2px}.source-btn{padding:3px 10px;border-radius:5px;border:none;background:transparent;color:var(--text-muted);font-size:.72rem;font-weight:500;cursor:pointer;transition:background .15s,color .15s;font-family:inherit}.source-btn.active{background:var(--border-h);color:var(--text)}.source-btn:hover:not(.active){color:var(--text)}