:root{--bg:#f6f7fb;--card:#fff;--border:#e4e8f0;--border-strong:#cfd6e4;--fg:#1a2233;--fg-muted:#5a6b85;--fg-faint:#93a0b5;--indigo:#4f46e5;--cyan:#0891b2;--grad:linear-gradient(120deg, #4f46e5, #0891b2);--gold:#b8860b;--star:#eab308;--danger:#dc2626;--ok:#16a34a;--glass:var(--glass);--glass-thin:var(--glass-thin);--input-bg:#fff;--pill-bg:#fff;--hover-bg:#eef0f7;--skeleton-a:#eceef4;--skeleton-b:#f5f6fa;--grid-line:#4f46e509;--orb-cyan:#0891b233;--orb-violet:#4f46e529;--topic-bg:var(--topic-bg);--banner-bg:var(--banner-bg);--banner-border:var(--banner-border);--shadow-sm:0 1px 2px #1a22330d, 0 1px 3px #1a22330f;--shadow-md:0 4px 12px #1a223314, 0 2px 4px #1a22330d;--shadow-lg:0 12px 32px #4f46e524, 0 4px 8px #1a22330f;--mono:ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;--sans:"Segoe UI", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html[data-theme=dark]{--bg:#0d1020;--card:#151a2e;--border:#232a45;--border-strong:#323b5e;--fg:#e6eaf5;--fg-muted:#9aa6c4;--fg-faint:#5f6b8f;--indigo:#818cf8;--cyan:#22d3ee;--grad:linear-gradient(120deg, #6366f1, #06b6d4);--gold:#eab308;--star:#eab308;--danger:#f87171;--ok:#4ade80;--glass:#111528d9;--glass-thin:#111528b8;--input-bg:#10142a;--pill-bg:#151a2e;--hover-bg:#1c2340;--skeleton-a:#1a2038;--skeleton-b:#232b4a;--grid-line:#818cf80d;--orb-cyan:#22d3ee1f;--orb-violet:#6366f124;--topic-bg:#818cf824;--banner-bg:#22d3ee17;--banner-border:#22d3ee4d;--shadow-sm:0 1px 2px #0000004d, 0 1px 3px #00000059;--shadow-md:0 4px 12px #0006, 0 2px 4px #0000004d;--shadow-lg:0 12px 32px #6366f140, 0 4px 8px #00000059;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}body{background:var(--input-bg);color:var(--fg);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;font-size:14px;line-height:1.5}::selection{background:#4f46e52e}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border:2px solid var(--bg);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--fg-faint)}:focus-visible{outline:2px solid var(--indigo);outline-offset:2px;border-radius:4px}.shell{height:100vh;display:flex;position:relative;overflow:hidden}.parallax-bg{pointer-events:none;z-index:0;background:linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);will-change:transform;background-size:40px 40px;position:absolute;inset:-20% 0 0}.parallax-orb{filter:blur(70px);opacity:.5;border-radius:50%;position:absolute}.orb-cyan{background:radial-gradient(circle, var(--orb-cyan), transparent 70%);width:480px;height:480px;top:40px;right:-120px}.orb-violet{background:radial-gradient(circle, var(--orb-violet), transparent 70%);width:560px;height:560px;top:55%;left:15%}.sidebar,.main{z-index:1;position:relative}.sidebar{border-right:1px solid var(--border);background:var(--glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);flex-direction:column;flex-shrink:0;width:232px;display:flex}.main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative}.brand{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:14px 16px;display:flex}.brand-mark{font-family:var(--mono);color:#fff;background:var(--grad);letter-spacing:-.5px;border-radius:6px;padding:3px 7px;font-size:13px;font-weight:700;box-shadow:0 2px 8px #4f46e559}.brand-name{letter-spacing:.2px;font-size:15px;font-weight:700}.nav-group-label{text-transform:uppercase;letter-spacing:.14em;color:var(--fg-faint);padding:12px 12px 6px;font-size:10px;font-weight:700}.cats{flex-direction:column;gap:2px;padding:0 8px 8px;display:flex}.cats-scroll{flex:1;overflow-y:auto}.cat{width:100%;color:var(--fg-muted);font:inherit;text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;padding:7px 10px;transition:background .13s ease-out,color .13s ease-out,box-shadow .13s ease-out;display:flex;position:relative}.cat:hover{background:var(--hover-bg);color:var(--fg)}.cat-active{background:var(--grad);color:#fff;font-weight:600;box-shadow:0 3px 10px #4f46e54d}.cat-icon{text-align:center;width:20px;font-size:15px}.sidebar-foot{border-top:1px solid var(--border);color:var(--fg-faint);padding:12px 16px;font-size:11px;line-height:1.7}.toolbar{border-bottom:1px solid var(--border);background:var(--glass-thin);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);align-items:center;gap:10px;padding:10px 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