:root{--primary:#5961f9;--primary-light:#ee9ae5;--bg:#f5f7fa;--card-bg:#fff;--text:#333;--text-muted:#666}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{text-decoration:none;color:inherit}
.top-nav{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);padding:12px 20px;position:sticky;top:0;z-index:1000}
.nav-container{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:700}
.nav-links{display:flex;gap:8px}
.nav-links a{color:rgba(255,255,255,.9);padding:8px 16px;border-radius:8px;font-size:14px;transition:all .3s}
.nav-links a:hover,.nav-links a.active{background:rgba(255,255,255,.2);color:#fff}
.hero-section{background:linear-gradient(135deg,var(--primary),var(--primary-light));padding:60px 20px;text-align:center}
.hero-title{color:#fff;font-size:36px;margin-bottom:12px}
.hero-desc{color:rgba(255,255,255,.9);font-size:16px;margin-bottom:24px}
.search-box{max-width:500px;margin:0 auto}
.search-input{width:100%;padding:14px 20px;border:none;border-radius:50px;font-size:15px}
.main-container{max-width:1400px;margin:0 auto;padding:30px 20px}
.section-title{font-size:20px;font-weight:600;margin:30px 0 16px;padding-bottom:10px;border-bottom:2px solid var(--primary)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.tool-card{background:var(--card-bg);border-radius:10px;padding:16px;display:flex;align-items:center;text-decoration:none;color:var(--text);transition:all .3s;border:1px solid #eee}
.tool-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(89,97,249,.1);border-color:var(--primary)}
.tool-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;margin-right:12px}
.tool-info h3{font-size:14px;font-weight:600;margin-bottom:4px}
.tool-info p{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-badge{display:inline-block;padding:2px 6px;background:#ef4444;color:#fff;border-radius:4px;font-size:10px;margin-left:6px}
.footer{background:#1a1a2e;padding:40px 20px;text-align:center;color:#aaa}
@media(max-width:768px){.nav-links{display:none}.card-grid{grid-template-columns:1fr 1fr}}