/* 中文注释：文档中心公开页面样式 */
:root{--bg:#07101d;--panel:#0d1930;--line:#1e3150;--text:#e6eefb;--muted:#8ea0ba;--cyan:#38e1ff;--gold:#ffc24b}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,rgba(56,225,255,.08),transparent 34%),var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;min-height:100vh}body.lightbox-open{overflow:hidden}header{height:76px;padding:0 max(24px,calc((100% - 1120px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(7,16,29,.92);position:sticky;top:0;z-index:2}header a{color:var(--muted);text-decoration:none}.brand{color:var(--text);font-weight:700;font-size:18px}main{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:90px 0}.intro span,.article-head span{color:var(--cyan);font-family:monospace;letter-spacing:3px;font-size:12px}.intro h1,.article-head h1{font-size:48px;margin:18px 0 12px}.intro p,.article-head p{color:var(--muted);line-height:1.8}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:52px}.card{padding:30px;background:var(--panel);border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--text);min-height:230px;display:flex;flex-direction:column;transition:.25s}.card:hover{transform:translateY(-6px);border-color:var(--cyan)}.card small{color:var(--muted);font-family:monospace}.card h2{font-size:21px;margin:22px 0 12px}.card p{color:var(--muted);line-height:1.8;flex:1}.card b{color:var(--gold)}.empty{grid-column:1/-1;padding:50px;text-align:center;border:1px solid var(--line);color:var(--muted)}.article-wrap{width:min(920px,calc(100% - 40px));padding-top:54px}.back{color:var(--cyan);text-decoration:none}.article-wrap article{margin-top:30px;background:#fff;color:#202632;border-radius:10px;overflow:hidden}.article-head{padding:52px;background:var(--panel);color:var(--text)}.article-head h1{font-size:40px}.article-head small{color:var(--muted)}.content{padding:56px;line-height:1.9;font-size:16px;overflow-x:auto}.content img{display:block;width:auto!important;height:auto!important;max-width:none!important;cursor:zoom-in}.content pre{overflow:auto;background:#111827;color:#e5edf8;padding:20px;border-radius:6px}.content table{width:100%;border-collapse:collapse}.content td,.content th{border:1px solid #dfe5ec;padding:10px}.content a{color:#087ea4}.document-lightbox[hidden]{display:none}.document-lightbox{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:32px}.document-lightbox-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.86)}.document-lightbox-dialog{position:relative;z-index:1;max-width:calc(100vw - 64px);max-height:calc(100vh - 64px);overflow:auto;background:#090f18;border:1px solid #30445f;box-shadow:0 24px 80px rgba(0,0,0,.65)}.document-lightbox-dialog img{display:block;width:auto;height:auto;max-width:none}.document-lightbox-close{position:sticky;float:right;top:10px;right:10px;z-index:2;width:38px;height:38px;margin:10px 10px -48px 0;border:1px solid #53677f;background:#111b29;color:#fff;font-size:26px;line-height:1;cursor:pointer}.document-lightbox-close:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){main{padding:56px 0}.grid{grid-template-columns:1fr}.intro h1,.article-head h1{font-size:34px}.article-head,.content{padding:28px 22px}}