:root{--bg: #ffffff;--bg-soft: #f7f7fa;--bg-sunken: #f1f1f6;--border: #ececf1;--border-strong: #dcdce6;--text: #0f0f17;--text-muted: #6a6a78;--text-faint: #9a9aa8;--primary: #6d28d9;--primary-hover: #7c3aed;--primary-soft: #f3eefc;--primary-soft-2: #ece4fb;--primary-ink: #ffffff;--shadow-sm: 0 1px 2px rgba(15, 15, 23, .04), 0 0 0 1px rgba(15, 15, 23, .04);--shadow-md: 0 4px 24px -8px rgba(109, 40, 217, .18), 0 1px 3px rgba(15, 15, 23, .06);--shadow-lg: 0 24px 60px -24px rgba(109, 40, 217, .28), 0 2px 6px rgba(15, 15, 23, .06);--radius-sm: 8px;--radius: 14px;--radius-lg: 20px;--radius-xl: 28px;--font-sans: "Manrope", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--ease: cubic-bezier(.22, .61, .36, 1)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;letter-spacing:-.005em}button{font-family:inherit;cursor:pointer}input,button,textarea,select{font-family:inherit;font-size:inherit;color:inherit}a{color:inherit}.app{min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}.nav{position:sticky;top:0;z-index:50;background:#ffffffd9;backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border)}.nav-inner{height:64px;display:flex;align-items:center;gap:28px}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--text);text-decoration:none;cursor:pointer;background:none;border:none;padding:0}.logo-mark{width:28px;height:28px;border-radius:8px;background:var(--primary);display:grid;place-items:center;color:#fff;font-family:var(--font-mono);font-size:14px;font-weight:700;position:relative;transition:transform .4s var(--ease)}.logo:hover .logo-mark{transform:rotate(-8deg)}.logo-mark span{position:relative;z-index:1}.nav-links{display:flex;gap:4px;margin-left:8px}.nav-link{padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-muted);cursor:pointer;white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);background:transparent;border:none;text-decoration:none}.nav-link:hover,.nav-link.active{color:var(--text);background:var(--bg-soft)}.nav-spacer{flex:1}.nav-search{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;width:280px;background:var(--bg-soft);border:1px solid transparent;border-radius:999px;color:var(--text-muted);font-size:13px;cursor:pointer;white-space:nowrap;transition:all .2s var(--ease)}.nav-search:hover{border-color:var(--border-strong);background:var(--bg);color:var(--text)}.nav-search kbd{margin-left:auto;font-family:var(--font-mono);font-size:11px;padding:2px 6px;background:var(--bg);border:1px solid var(--border);border-radius:5px;color:var(--text-faint)}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 22px;height:44px;background:var(--primary);color:var(--primary-ink);border:none;border-radius:12px;font-size:14px;font-weight:600;letter-spacing:-.005em;cursor:pointer;overflow:hidden;box-shadow:0 1px #ffffff2e inset,0 6px 20px -8px #6d28d98c;transition:transform .2s var(--ease),box-shadow .2s var(--ease);isolation:isolate;text-decoration:none}.btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(180px 180px at var(--mx, 50%) var(--my, 50%),rgba(255,255,255,.35),rgba(255,255,255,0) 60%);opacity:0;transition:opacity .25s var(--ease);pointer-events:none;z-index:0}.btn:hover:before{opacity:1}.btn>*{position:relative;z-index:1}.btn:hover{transform:translateY(-1px);box-shadow:0 1px #ffffff2e inset,0 12px 28px -10px #6d28d9a6}.btn:active{transform:translateY(0)}.btn.btn-ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--border-strong)}.btn.btn-ghost:before{background:radial-gradient(180px 180px at var(--mx, 50%) var(--my, 50%),rgba(109,40,217,.1),rgba(109,40,217,0) 60%)}.btn.btn-ghost:hover:before{opacity:1}.btn.btn-ghost:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary)}.btn.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:10px}.btn.btn-lg{height:52px;padding:0 28px;font-size:15px;border-radius:14px}.hero{padding:80px 0 56px;position:relative}.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--primary);padding:6px 12px;background:var(--primary-soft);border-radius:999px;margin-bottom:24px;animation:fadeUp .6s var(--ease) both}.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:pulse 2s infinite}.hero h1{font-size:clamp(40px,6vw,64px);line-height:1.02;letter-spacing:-.035em;font-weight:700;margin:0 0 20px;max-width:820px;animation:fadeUp .7s .05s var(--ease) both}.hero h1 em{font-style:normal;color:var(--primary);position:relative}.hero p.lead{font-size:18px;color:var(--text-muted);max-width:580px;margin:0 0 36px;animation:fadeUp .7s .1s var(--ease) both}.bigsearch{position:relative;z-index:30;max-width:720px;animation:fadeUp .7s .15s var(--ease) both}.bigsearch-input{display:flex;align-items:center;gap:14px;height:64px;padding:0 8px 0 24px;background:var(--bg);border:1px solid var(--border-strong);border-radius:18px;box-shadow:var(--shadow-sm);transition:all .25s var(--ease)}.bigsearch-input:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-soft),var(--shadow-md)}.bigsearch-input svg{color:var(--text-faint);flex-shrink:0}.bigsearch-input input{flex:1;border:none;outline:none;background:transparent;font-size:17px;letter-spacing:-.01em}.bigsearch-input input::-moz-placeholder{color:var(--text-faint)}.bigsearch-input input::placeholder{color:var(--text-faint)}.bigsearch-hints{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.hint-chip{font-size:13px;padding:7px 12px;border-radius:999px;background:var(--bg-soft);border:1px solid transparent;color:var(--text-muted);cursor:pointer;transition:all .2s var(--ease)}.hint-chip:hover{color:var(--primary);background:var(--primary-soft);border-color:var(--primary-soft-2)}.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--bg);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;max-height:440px;overflow-y:auto;animation:dropIn .2s var(--ease);z-index:20}@keyframes dropIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.search-results-section{padding:8px}.search-results-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint);padding:10px 12px 6px}.search-result{display:flex;align-items:center;gap:14px;padding:10px 12px;border-radius:12px;cursor:pointer;transition:background .15s var(--ease)}.search-result:hover{background:var(--bg-soft)}.search-result-icon{width:36px;height:36px;border-radius:10px;background:var(--primary-soft);display:grid;place-items:center;color:var(--primary);flex-shrink:0}.search-result-text{flex:1;min-width:0}.search-result-title{font-weight:600;font-size:14px;color:var(--text)}.search-result-title mark{background:transparent;color:var(--primary);padding:0}.search-result-desc{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.search-result-path{font-size:11px;color:var(--text-faint);font-family:var(--font-mono)}.search-empty{padding:40px 20px;text-align:center;color:var(--text-muted);font-size:14px}.section{padding:56px 0}.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:24px}.section-title{font-size:28px;letter-spacing:-.025em;font-weight:700;margin:0 0 4px;display:flex;align-items:center;gap:10px}.section-sub{color:var(--text-muted);font-size:15px;margin:0}.section-link{color:var(--text-muted);font-size:14px;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:color .2s var(--ease),gap .2s var(--ease);background:none;border:none;padding:0;text-decoration:none}.section-link:hover{color:var(--primary);gap:8px}.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.cat-card{position:relative;padding:24px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s var(--ease);overflow:hidden;isolation:isolate;text-align:left;font:inherit;color:inherit;display:block;width:100%;text-decoration:none}.cat-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%),var(--primary-soft),transparent 60%);opacity:0;transition:opacity .3s var(--ease);z-index:-1}.cat-card:hover{border-color:var(--primary-soft-2);transform:translateY(-2px)}.cat-card:hover:after{opacity:1}.cat-card:hover .cat-arrow{transform:translate(2px,-2px);color:var(--primary)}.cat-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;margin-bottom:18px;transition:all .3s var(--ease)}.cat-card:hover .cat-icon{transform:scale(1.05) rotate(-4deg)}.cat-title{font-size:17px;font-weight:600;letter-spacing:-.015em;margin:0 0 4px;display:flex;align-items:center;justify-content:space-between}.cat-arrow{color:var(--text-faint);transition:all .25s var(--ease)}.cat-desc{font-size:13px;color:var(--text-muted);margin:0 0 16px}.cat-count{font-size:12px;font-weight:500;color:var(--text-faint);display:flex;align-items:center;gap:6px}.cat-count strong{color:var(--text);font-weight:600}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.tool-card{position:relative;padding:18px 20px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;display:flex;gap:14px;align-items:center;transition:all .25s var(--ease);overflow:hidden;isolation:isolate;text-align:left;font:inherit;color:inherit;width:100%;text-decoration:none}.tool-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(220px 220px at var(--mx, 50%) var(--my, 50%),var(--primary-soft),transparent 60%);opacity:0;transition:opacity .3s var(--ease);z-index:-1}.tool-card:hover{border-color:var(--primary-soft-2)}.tool-card:hover:before{opacity:1}.tool-card:hover .tool-arrow{color:var(--primary);transform:translate(2px)}.tool-icon{width:38px;height:38px;border-radius:10px;background:var(--bg-soft);color:var(--text);display:grid;place-items:center;flex-shrink:0;font-family:var(--font-mono);font-size:13px;font-weight:600;transition:all .25s var(--ease)}.tool-card:hover .tool-icon{background:var(--primary);color:#fff}.tool-text{flex:1;min-width:0}.tool-title{font-size:14px;font-weight:600;letter-spacing:-.01em}.tool-desc{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tool-arrow{color:var(--text-faint);transition:all .2s var(--ease);display:inline-flex}.trending{display:flex;gap:10px;flex-wrap:wrap}.trend-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px 8px 10px;background:var(--bg);border:1px solid var(--border);border-radius:999px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s var(--ease);font-family:inherit;color:inherit}.trend-pill .num{font-family:var(--font-mono);font-size:11px;font-weight:600;width:20px;height:20px;border-radius:50%;background:var(--bg-soft);display:grid;place-items:center;color:var(--text-faint);transition:all .2s var(--ease)}.trend-pill:hover{border-color:var(--primary);color:var(--primary)}.trend-pill:hover .num{background:var(--primary);color:#fff}.quickconvert{background:var(--bg-soft);border-radius:var(--radius-xl);padding:36px;display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center}.qc-text h3{font-size:24px;letter-spacing:-.025em;margin:0 0 8px}.qc-text p{color:var(--text-muted);margin:0 0 20px}.qc-tabs{display:inline-flex;padding:4px;background:var(--bg);border-radius:10px;border:1px solid var(--border);margin-bottom:16px}.qc-tab{padding:6px 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select{border:none;outline:none;background:var(--bg-soft);font-size:13px;font-weight:500;padding:6px 28px 6px 10px;border-radius:8px;cursor:pointer;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236a6a78' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");background-repeat:no-repeat;background-position:right 10px center}.qc-swap{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text-muted);display:grid;place-items:center;cursor:pointer;transition:all .3s var(--ease)}.qc-swap:hover{color:var(--primary);border-color:var(--primary);transform:rotate(180deg)}.footer{margin-top:80px;padding:48px 0 32px;border-top:1px solid var(--border);color:var(--text-muted);font-size:13px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:32px}.footer h4{font-size:13px;font-weight:600;color:var(--text);margin:0 0 14px;letter-spacing:-.005em}.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}.footer a,.footer li,.footer button{color:var(--text-muted);cursor:pointer;transition:color .2s var(--ease);text-decoration:none;background:none;border:none;padding:0;font:inherit;text-align:left}.footer a:hover,.footer li:hover,.footer button:hover{color:var(--primary)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border);font-size:12px;color:var(--text-faint)}.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin:32px 0 16px}.crumbs span.sep{color:var(--text-faint)}.crumbs a{color:var(--text-muted);cursor:pointer;transition:color .2s 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