:root{--ink:#1C2B4A;--ink2:#34415E;--mute:#5B6578;--line:#E1E5EC;--bg:#fff;--soft:#F6F7F9;--paper:#F4F2EE;--acc:#C1602E;--ok:#1F7A5A;--warn:#B5651D;--r:10px;--sh:0 1px 2px rgba(28,43,74,.06),0 4px 14px rgba(28,43,74,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 'IBM Plex Sans',system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-underline-offset:3px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #E8A07A;outline-offset:2px}
img{max-width:100%;height:auto}h1,h2,h3{line-height:1.15;letter-spacing:-.015em;margin:0 0 10px}h1{font-size:clamp(26px,3.4vw,38px);font-weight:600}h2{font-size:21px;font-weight:600}.muted{color:var(--mute)}.m{font:500 12px 'IBM Plex Mono',monospace;letter-spacing:.07em;text-transform:uppercase;color:var(--mute)}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 24px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}.top .lg img{height:34px;width:auto;display:block}.top nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.top nav a{padding:9px 12px;text-decoration:none;border-radius:8px;font-weight:500;font-size:15px}.top nav a:hover{background:var(--soft)}.top nav a.pill{background:var(--ink);color:#fff}.top nav a.pill:hover{background:var(--ink2)}
.home .top{border:0;background:transparent;position:static;justify-content:flex-end}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border:1.5px solid var(--ink);background:var(--ink);color:#fff;font:600 15px 'IBM Plex Sans',sans-serif;border-radius:var(--r);cursor:pointer;text-decoration:none}.btn:hover{background:var(--ink2)}.btn.o{background:#fff;color:var(--ink)}.btn.o:hover{background:var(--soft)}.btn.acc{background:var(--acc);border-color:var(--acc)}.btn.sm{min-height:36px;padding:0 14px;font-size:14px}.btn[disabled]{opacity:.5;cursor:not-allowed}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px}
/* landing */
.hero{min-height:62vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;padding:0 20px 40px;text-align:center}.hero .logo{width:min(300px,70vw)}
.sf{display:flex;align-items:center;width:min(640px,100%);height:56px;border:1px solid #D5DAE3;border-radius:28px;background:#fff;padding:0 8px 0 20px;transition:box-shadow .15s,border-color .15s}.sf:hover,.sf:focus-within{box-shadow:var(--sh);border-color:#B9C1D0}.sf input{flex:1;min-width:0;border:0;outline:0;font:17px 'IBM Plex Sans',sans-serif;background:transparent;color:var(--ink);height:100%}.sf input::placeholder{color:#7B8497}.sf button{width:42px;height:42px;border:0;background:none;border-radius:50%;cursor:pointer;color:var(--ink)}.sf button:hover{background:var(--soft)}
.hrow{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.count{font-size:14px;color:var(--mute);margin:0}.hero .tag{max-width:46ch;color:var(--mute);margin:0}
/* results */
.res{display:grid;grid-template-columns:272px 1fr;gap:28px;padding:22px 0 50px;align-items:start}.side{position:sticky;top:76px;max-height:calc(100vh - 90px);overflow:auto;padding-right:6px}.side .sf{height:44px;border-radius:22px;margin-bottom:14px}.side .sf input{font-size:15px}
.fg{border-top:1px solid var(--line);padding:14px 0}.fg h3{font:600 13px 'IBM Plex Mono',monospace;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:0 0 8px}.fg ul{list-style:none;margin:0;padding:0}.fg li a,.fg li label{display:flex;justify-content:space-between;gap:8px;padding:5px 8px;border-radius:7px;text-decoration:none;font-size:15px;cursor:pointer}.fg li a:hover,.fg li label:hover{background:var(--soft)}.fg li a.on{background:var(--ink);color:#fff}.fg li .n{color:var(--mute);font-size:13px}.fg li a.on .n{color:#C9CED8}.fg input[type=checkbox]{accent-color:var(--ink);margin-right:8px}.fg .more{font-size:13px;background:none;border:0;color:var(--acc);cursor:pointer;padding:4px 8px}
.fg .pr{display:flex;gap:8px}.fg .pr input,.fg select{width:100%;height:38px;border:1px solid #D5DAE3;border-radius:8px;padding:0 10px;font:15px 'IBM Plex Sans';background:#fff;color:var(--ink)}
.bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}.bar .r{display:flex;gap:10px;align-items:center}.bar select{height:40px;border:1px solid #D5DAE3;border-radius:8px;padding:0 10px;font:15px 'IBM Plex Sans';background:#fff}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.chip{display:inline-flex;gap:6px;align-items:center;padding:5px 10px;background:var(--soft);border:1px solid var(--line);border-radius:999px;font-size:14px;text-decoration:none}.chip:hover{background:#fff}.fbtn{display:none}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.tile{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s,border-color .15s}.tile:hover{box-shadow:var(--sh);border-color:#C5CCD9}.tile .tl{display:flex;flex-direction:column;text-decoration:none;flex:1}
.tile .th{position:relative;aspect-ratio:4/3;background:var(--soft);display:flex;align-items:center;justify-content:center}.tile .th img{width:100%;height:100%;object-fit:contain}.tile .noimg{color:#9AA3B5;font-size:13px}.lv{position:absolute;left:10px;top:10px;padding:3px 9px;border-radius:999px;font:600 11px 'IBM Plex Mono',monospace;letter-spacing:.04em;text-transform:uppercase;color:#fff;background:var(--ink)}.lv1{background:#5B6578}.lv3{background:var(--ok)}.lv4{background:var(--acc)}
.tb{padding:12px 14px 6px}.tn{font-weight:600;font-size:16px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tm{font-size:13.5px;color:var(--mute);margin-top:4px}.tf{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 14px 12px}.tf img{height:22px;max-width:96px;object-fit:contain}.tf .mn{font-size:13px;color:var(--mute)}.fm{display:flex;gap:4px;flex-wrap:wrap;justify-content:flex-end}.fm span{font:500 10.5px 'IBM Plex Mono',monospace;border:1px solid var(--line);border-radius:5px;padding:1px 5px;color:var(--mute)}
.tile .dl{padding:0 14px 14px;position:relative}.tile .dl .btn{width:100%}.menu{position:absolute;left:14px;right:14px;bottom:56px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:6px;z-index:5}.menu button{display:flex;justify-content:space-between;width:100%;padding:9px 10px;border:0;background:none;text-align:left;font:15px 'IBM Plex Sans';border-radius:7px;cursor:pointer;color:var(--ink)}.menu button:hover{background:var(--soft)}
.pg{display:flex;gap:6px;justify-content:center;margin-top:24px;flex-wrap:wrap}.pg a,.pg span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;text-decoration:none}.pg a:hover{background:var(--soft)}.pg .cur{background:var(--ink);color:#fff;border-color:var(--ink)}
.empty{text-align:center;padding:60px 20px;color:var(--mute)}.empty h2{color:var(--ink)}
/* categories */
.az{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 22px}.az a{padding:6px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:14px}.az a:hover{background:var(--soft)}
.cg{margin:0 0 34px;scroll-margin-top:84px}.cg h2{padding-bottom:8px;border-bottom:2px solid var(--ink);display:flex;justify-content:space-between;align-items:baseline}.cgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;margin-top:14px}
.cc{display:flex;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:var(--r);text-decoration:none;background:#fff}.cc:hover{border-color:var(--ink);box-shadow:var(--sh)}.cc .ic{width:36px;height:36px;flex:none;background-color:var(--ink);-webkit-mask:var(--i) center/contain no-repeat;mask:var(--i) center/contain no-repeat}.cc b{font-weight:600;display:block;line-height:1.25}.cc span{font-size:13px;color:var(--mute)}
/* product */
.crumbs{padding:16px 0 4px;font-size:14px;color:var(--mute)}.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}
.pp{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:34px;padding:10px 0 20px}.pp .desc,.pp .spec{grid-column:1/-1}
.stage{aspect-ratio:4/3;background:var(--soft);border:1px solid var(--line);border-radius:var(--r);display:flex;align-items:center;justify-content:center;overflow:hidden}.stage img,.stage model-viewer{width:100%;height:100%;object-fit:contain}.stage model-viewer{--poster-color:transparent}.noimg{color:#9AA3B5}
.thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.thumbs button{width:72px;height:54px;border:1px solid var(--line);border-radius:8px;background:var(--soft);padding:0;cursor:pointer;overflow:hidden}.thumbs button img{width:100%;height:100%;object-fit:cover}.thumbs button.on{border-color:var(--ink)}.v3{margin-top:12px}
.mrow{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px}.mlogo{height:34px;max-width:140px;object-fit:contain}.mname{font-weight:600;text-decoration:none}.as1b{margin-left:auto}.sub{color:var(--mute);margin:0 0 14px}
.price{display:flex;align-items:baseline;gap:10px;margin:6px 0;flex-wrap:wrap}.price b{font-size:28px;font-weight:600}.price span{color:var(--mute);font-size:14px}.pp .lead{background:var(--paper);border-left:4px solid var(--acc);padding:10px 14px;border-radius:0 8px 8px 0;font-size:15px;margin:10px 0}
.files{border:1px solid var(--line);border-radius:var(--r);padding:16px;margin-top:16px;background:var(--soft)}.files h2{font-size:18px}.frow{display:grid;grid-template-columns:70px 1fr auto auto;gap:10px;align-items:center;padding:9px 0;border-top:1px solid var(--line)}.frow:first-of-type{border-top:0}.fmt{font:600 13px 'IBM Plex Mono',monospace;background:var(--ink);color:#fff;text-align:center;border-radius:6px;padding:3px 0}.fv,.fs{color:var(--mute);font-size:14px}#dlnote{margin:12px 0 0;font-size:14px}
.pp .desc p{max-width:75ch}.spec table{width:100%;border-collapse:collapse;max-width:860px}.spec th,.spec td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.spec th{width:38%;font-weight:500;color:var(--mute)}.rel{padding:10px 0 50px}
/* account */
.card{max-width:460px;margin:34px auto;border:1px solid var(--line);border-radius:14px;padding:26px;box-shadow:var(--sh);background:#fff}.card.wide{max-width:640px}.tabs{display:flex;gap:4px;background:var(--soft);padding:4px;border-radius:10px;margin-bottom:18px}.tabs button{flex:1;height:40px;border:0;background:none;border-radius:8px;font:600 15px 'IBM Plex Sans';cursor:pointer;color:var(--mute)}.tabs button.on{background:#fff;color:var(--ink);box-shadow:var(--sh)}
.card label{display:block;font-size:14px;font-weight:500;margin:0 0 12px}.card input[type=email],.card input[type=password],.card input[type=text],.card select{display:block;width:100%;height:46px;margin-top:5px;border:1px solid #CBD2DE;border-radius:9px;padding:0 12px;font:16px 'IBM Plex Sans';background:#fff;color:var(--ink)}.card .ck{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14px;line-height:1.45}.card .ck input{margin-top:3px;width:18px;height:18px;accent-color:var(--ink)}.card .btn{width:100%;margin-top:6px}.hp{position:absolute;left:-9999px}.err{color:#B3261E;font-size:14px;min-height:20px;margin:6px 0}.okm{color:var(--ok);font-size:14px}.lnk{background:none;border:0;color:var(--acc);cursor:pointer;font:15px 'IBM Plex Sans';padding:6px 0;text-decoration:underline}.sec{border-top:1px solid var(--line);margin-top:20px;padding-top:18px}.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:13px;font-weight:600}.pill.g{background:#E3F3EC;color:var(--ok)}.pill.w{background:#FBEBDD;color:var(--warn)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:10px;box-shadow:var(--sh);z-index:50;max-width:92vw;font-size:15px}.toast a{color:#fff}
.foot{border-top:1px solid var(--line);background:var(--soft);margin-top:30px}.foot .wrap{display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;padding:20px 24px;font-size:14px;color:var(--mute)}.foot a{text-decoration:none;margin-right:14px}.foot a:hover{text-decoration:underline}.home .foot{background:transparent;border:0;position:static}
.doc{max-width:820px;margin:0 auto;padding:10px 24px 40px}.doc h2{margin-top:30px;font-size:22px;scroll-margin-top:80px}.doc table{display:block;overflow-x:auto;border-collapse:collapse;margin:12px 0;font-size:15px}.doc th,.doc td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}.doc th{background:var(--soft)}.doc .toc{border:1px solid var(--line);background:var(--soft);padding:14px 18px;border-radius:var(--r)}.doc .toc ol{columns:2;margin:6px 0 0;padding-left:20px}
@media(max-width:900px){.res{grid-template-columns:1fr}.side{position:fixed;inset:0;max-height:none;background:#fff;z-index:40;padding:16px 20px 90px;transform:translateX(-102%);transition:transform .2s}.side.open{transform:none}.fbtn{display:inline-flex}.pp{grid-template-columns:1fr}.top{padding:10px 14px}.top nav a{padding:8px 9px;font-size:14px}.frow{grid-template-columns:60px 1fr auto}.frow .fs{display:none}.doc .toc ol{columns:1}}
@media(max-width:480px){.grid{grid-template-columns:1fr 1fr;gap:10px}.tb{padding:10px 10px 4px}.tf{padding:4px 10px 10px}.tile .dl{padding:0 10px 10px}.menu{left:10px;right:10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}