.cat-hero{position:relative;background:linear-gradient(135deg,#161b22d9,#21262da6);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:32px 28px;margin-top:12px;margin-bottom:20px;overflow:hidden;box-shadow:0 16px 36px -12px #00000080,0 0 30px #00a8ff0a}.cat-hero:before{content:"";position:absolute;top:-60px;right:-60px;width:260px;height:260px;background:radial-gradient(circle,rgba(0,168,255,.12),transparent 70%);pointer-events:none;border-radius:50%}.cat-hero-header{display:flex;align-items:center;gap:20px;margin-bottom:10px;flex-wrap:wrap}.cat-hero-icon{font-size:32px;width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#00a8ff26,#00a8ff0a);border:1px solid rgba(0,168,255,.25);border-radius:16px;box-shadow:0 4px 14px #00a8ff1f;flex-shrink:0}.cat-hero-meta{flex:1;min-width:200px}.cat-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px;background:#00a8ff1f;color:#00a8ff;border:1px solid rgba(0,168,255,.25);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.cat-hero-title{font-size:clamp(26px,4vw,36px);font-weight:800;color:#f0f6fc;line-height:1.2;margin:0;letter-spacing:-.5px}.cat-hero-desc{font-size:15px;color:#8b949e;line-height:1.6;margin-top:10px;margin-bottom:0;max-width:760px}.cat-nav-bar{margin-bottom:24px}.cat-nav-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin;scrollbar-color:rgba(0,168,255,.3) transparent}.cat-nav-scroll::-webkit-scrollbar{height:4px}.cat-nav-scroll::-webkit-scrollbar-thumb{background:#00a8ff4d;border-radius:4px}.cat-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#161b22d9;border:1px solid rgba(255,255,255,.08);border-radius:20px;color:#8b949e;font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap;transition:all .2s cubic-bezier(.16,1,.3,1);box-shadow:0 2px 6px #0003}.cat-pill-icon{font-size:15px}.cat-pill:hover{color:#f0f6fc;background:#21262df2;border-color:#00a8ff4d;transform:translateY(-2px)}.cat-pill.active{color:#fff;background:linear-gradient(135deg,#00a8ff40,#00a8ff1a);border-color:#00a8ff;box-shadow:0 4px 14px #00a8ff40}.cat-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}.cat-search-wrap{position:relative;flex:1;min-width:260px;max-width:480px}.cat-search-input{width:100%;height:44px;padding:0 38px 0 42px;background:#161b22cc;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#f0f6fc;font-size:14px;outline:none;transition:all .2s ease}.cat-search-input:focus{border-color:#00a8ff;background:#161b22f2;box-shadow:0 0 0 3px #00a8ff26}.cat-search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#8b949e;pointer-events:none;display:flex;align-items:center}.cat-search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;color:#8b949e;cursor:pointer;padding:4px;font-size:14px;display:none}.cat-search-clear:hover{color:#f0f6fc}.cat-counter{font-size:13px;color:#8b949e;font-weight:600;background:#ffffff0a;padding:6px 14px;border-radius:20px;border:1px solid rgba(255,255,255,.06)}.cat-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.tool-card{position:relative;display:flex;flex-direction:column;background:linear-gradient(145deg,#161b22e6,#0d1117f2);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:20px;text-decoration:none;color:inherit;transition:all .25s cubic-bezier(.16,1,.3,1);box-shadow:0 4px 14px #0000004d;overflow:hidden}.tool-card:before{content:"";position:absolute;inset:0;border-radius:16px;padding:1px;background:linear-gradient(135deg,rgba(0,168,255,.35),transparent 60%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s ease;pointer-events:none}.tool-card:hover{transform:translateY(-4px);border-color:#00a8ff66;box-shadow:0 14px 30px -6px #00000080,0 0 20px #00a8ff26}.tool-card:hover:before{opacity:1}.tool-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.tool-card-icon{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,#00a8ff1f,#00a8ff08);border:1px solid rgba(0,168,255,.18);display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 2px 8px #0003}.tool-card-arrow{width:28px;height:28px;border-radius:50%;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#8b949e;font-size:14px;transition:all .2s ease}.tool-card:hover .tool-card-arrow{background:#00a8ff;border-color:#00a8ff;color:#fff;transform:translate(3px)}.tool-card-body{flex:1;display:flex;flex-direction:column}.tool-card-name{font-size:16px;font-weight:700;color:#f0f6fc;margin-bottom:8px;line-height:1.35;transition:color .2s ease}.tool-card:hover .tool-card-name{color:#38bdf8}.tool-card-desc{font-size:13px;color:#8b949e;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}.cat-empty{grid-column:1 / -1;text-align:center;padding:60px 20px;background:#161b2280;border:1px dashed rgba(255,255,255,.1);border-radius:16px;color:#8b949e}.cat-empty-icon{font-size:40px;margin-bottom:12px;opacity:.6}.cat-empty-text{font-size:15px;font-weight:500}@media(max-width:640px){.cat-hero{padding:24px 20px}.cat-tools-grid{grid-template-columns:1fr}.cat-toolbar{flex-direction:column;align-items:stretch}}