:root{--primary-color:#5D5FEF;--secondary-color:#4F46E5;--bg-color:#F8FAFF;--card-color:#FFFFFF;--text-color:#2D3748;--light-text:#718096;--shadow-sm:0 1px 3px rgba(0,0,0,0.05);--shadow-md:0 4px 6px rgba(0,0,0,0.08);--shadow-lg:0 10px 15px rgba(0,0,0,0.1);--transition:all 0.3s cubic-bezier(0.25,0.8,0.25,1);}*{margin:0;padding:0;box-sizing:border-box;}body{font-family:'Inter','PingFang SC','Microsoft YaHei',sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6;padding:0;min-height:100vh;background-image:radial-gradient(circle at 10% 20%,rgba(93,95,239,0.05) 0%,rgba(93,95,239,0.05) 90%);}.container{max-width:1200px;margin:0 auto;padding:40px 20px;}header{text-align:center;margin-bottom:50px;}.logo{width:80px;height:80px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:20px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:20px;box-shadow:var(--shadow-md);}.logo i{color:white;font-size:2.5rem;}h1{color:var(--text-color);margin-bottom:10px;font-size:2.5rem;font-weight:700;}.subtitle{color:var(--light-text);font-size:1.1rem;max-width:600px;margin:0 auto;}.categories{display:grid;gap:40px;}.category{background-color:var(--card-color);border-radius:16px;padding:30px;box-shadow:var(--shadow-sm);transition:var(--transition);}.category:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}.category-header{display:flex;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:1px solid rgba(0,0,0,0.05);}.category-icon{width:48px;height:48px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:12px;display:flex;align-items:center;justify-content:center;margin-right:15px;color:white;font-size:1.5rem;box-shadow:var(--shadow-sm);}.category-title{font-size:1.5rem;font-weight:600;color:var(--text-color);}.category-desc{color:var(--light-text);font-size:0.95rem;margin-top:5px;}.links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:15px;}.link-card{background-color:var(--bg-color);border-radius:12px;padding:20px;transition:var(--transition);text-decoration:none;color:inherit;display:flex;align-items:center;border:1px solid rgba(0,0,0,0.03);}.link-card:hover{background-color:white;box-shadow:var(--shadow-md);border-color:rgba(93,95,239,0.1);}.link-icon{width:40px;height:40px;background-color:rgba(93,95,239,0.1);border-radius:10px;display:flex;align-items:center;justify-content:center;margin-right:15px;color:var(--primary-color);font-size:1.1rem;}.link-info{flex:1;}.link-name{font-weight:600;margin-bottom:3px;}.link-desc{font-size:0.85rem;color:var(--light-text);}footer{text-align:center;margin-top:80px;padding:30px 0;color:var(--light-text);font-size:0.9rem;border-top:1px solid rgba(0,0,0,0.05);}@media (max-width:768px){.container{padding:30px 15px;}h1{font-size:2rem;}.category{padding:20px;}.links-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));}}@media (max-width:480px){.logo{width:60px;height:60px;}h1{font-size:1.8rem;}.subtitle{font-size:1rem;}.category-header{flex-direction:column;align-items:flex-start;}.category-icon{margin-bottom:15px;margin-right:0;}.links-grid{grid-template-columns:1fr;}}