:root{--bg:#f5f7fb;--surface:#fff;--surface-soft:#f8fafc;--text:#172033;--muted:#667085;--line:#dbe2ea;--sidebar:#172033;--accent:#d6b64c;--accent-strong:#b99627;--success:#3a8a5c;--max:1120px;--radius:14px}*{box-sizing:border-box}html{font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text)}a{color:inherit}.topbar{min-height:76px;background:var(--sidebar);border-bottom:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - var(--max))/2));gap:24px;color:#fff}.brand{font-weight:800;text-decoration:none;font-size:1.12rem}.brand:before{content:"3D";display:inline-grid;place-items:center;width:40px;height:40px;margin-right:11px;border-radius:11px;background:var(--accent);color:var(--text);font-size:.83rem;font-weight:800;vertical-align:middle}.brand span{font-weight:500;color:#b8c2d1}.topbar nav{display:flex;gap:20px}.topbar nav a{font-size:.94rem;color:#dbe3ef;text-decoration:none;font-weight:600}.topbar nav a:hover{color:#fff}main{max-width:var(--max);margin:0 auto;padding:0 24px 64px}.hero{text-align:center;padding:72px 0 54px}.eyebrow{margin:0 0 8px;color:var(--muted);font-weight:800;font-size:.74rem;text-transform:uppercase;letter-spacing:.1em}h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.05;margin:0 0 14px;letter-spacing:-.035em}.lede{max-width:720px;margin:0 auto;color:var(--muted);font-size:1.08rem;line-height:1.6}.search-wrap{max-width:720px;margin:30px auto 0}.search-wrap input{width:100%;padding:17px 20px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);font-size:1rem;box-shadow:0 1px 2px rgba(16,24,40,.04);outline:none}.search-wrap input:focus{border-color:var(--accent-strong);box-shadow:0 0 0 3px rgba(214,182,76,.18)}.section h2,.support h2{font-size:1.45rem;margin:0 0 20px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px;text-decoration:none;transition:.15s;box-shadow:0 1px 2px rgba(16,24,40,.04)}.card:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(16,24,40,.07)}.card h3{margin:0 0 8px;font-size:1.05rem}.card h3:after{content:"";display:block;width:34px;height:3px;margin-top:10px;border-radius:999px;background:var(--accent)}.card p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.5}.support{margin-top:42px;padding:26px 28px;border-radius:14px;background:var(--surface);border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px}.support h2{margin-bottom:6px}.support p{margin:0;color:var(--muted)}.button{display:inline-block;white-space:nowrap;background:var(--accent);border:1px solid var(--accent-strong);color:var(--text);text-decoration:none;font-weight:700;padding:12px 17px;border-radius:9px}footer{max-width:var(--max);margin:0 auto;padding:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.9rem}.article{max-width:820px;margin:0 auto;padding:48px 0}.article .back{color:var(--accent-strong);text-decoration:none;font-weight:700}.article h1{font-size:2.35rem;margin-top:22px}.article h2{font-size:1.35rem;margin-top:34px;margin-bottom:10px}.article h3{font-size:1.05rem;margin:24px 0 8px}.article p,.article li{line-height:1.7;color:#475467}.article ul,.article ol{padding-left:22px}.article li{margin:7px 0}.article code{background:var(--surface-soft);border:1px solid var(--line);border-radius:6px;padding:2px 6px}.article-meta{color:var(--muted)!important;font-size:.9rem;margin-top:-4px}.inline-link{color:var(--accent-strong);font-weight:700;text-decoration:none}.help-callout{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;padding:15px 17px;margin:20px 0;color:#475467}.help-callout.warning{border-left-color:#b54708;background:#fffaeb}.help-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}.help-box{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:17px}.status-label{display:inline-block;border-radius:999px;padding:5px 9px;background:var(--surface-soft);border:1px solid var(--line);color:var(--muted);font-size:.75rem;font-weight:700}.status-label.live{background:#ecfdf3;border-color:#abefc6;color:#067647}.status-label.planned{background:#fffaeb;border-color:#fedf89;color:#b54708}.article table{width:100%;border-collapse:collapse;margin:18px 0;background:var(--surface);border:1px solid var(--line)}.article th,.article td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.article th{background:var(--surface-soft);font-size:.9rem}.no-results{text-align:center;color:var(--muted);padding:28px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:850px){.cards{grid-template-columns:repeat(2,1fr)}}@media(max-width:700px){.help-grid{grid-template-columns:1fr}}@media(max-width:600px){.topbar{padding:0 16px}.topbar nav a:first-child{display:none}main{padding-left:16px;padding-right:16px}.cards{grid-template-columns:1fr}.support{align-items:flex-start;flex-direction:column}footer{flex-direction:column;padding:20px 16px}}