position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 8px; height: 80%; background: linear-gradient(to bottom, #3498db, #2ecc71); border-radius: 4px; } .keywords-cloud { display: flex; flex-wrap: wrap; gap: 18px; } .keyword-item { background: linear-gradient(145deg, #f0f4f8, #e1e7ed); padding: 14px 32px; border-radius: 50px; transition: all 0.3s ease; position: relative; overflow: hidden; font-size: 0.9rem; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05); cursor: pointer; user-select: none; } .keyword-item:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(52, 152, 219, 0.2); background: linear-gradient(145deg, #e3ecf4, #d2e0f0); color: #2980b9; } .keyword-item:active { transform: translateY(-2px); } .keyword-item::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 3px; background: linear-gradient(90deg, #3498db, #2ecc71); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; } .keyword-item:hover::after { transform: scaleX(1); } .stats { display: flex; justify-content: center; margin-top: 60px; padding: 20px; background: rgba(241, 247, 253, 0.7); border-radius: 16px; border-left: 4px solid #3498db; } .stat-item { text-align: center; padding: 0 30px; } .stat-item:not(:last-child) { border-right: 2px solid #e0e7f1; } .stat-value { font-size: 2.2rem; font-weight: 700; color: #2980b9; margin-bottom: 5px; } .stat-label { color: #7f8c8d; font-size: 1.1rem; } /* 响应式设计 */ @media (max-width: 1200px) { .keycontainer { padding: 30px; } .keyword-item { padding: 14px 26px; font-size: 1.15rem; } } @media (max-width: 768px) { .section-title { font-size: 1.5rem; } .container { padding: 25px; } .keyword-item { padding: 12px 22px; font-size: 1.1rem; } .stats { flex-wrap: wrap; } .stat-item { flex: 0 0 50%; padding: 15px; } .stat-item:not(:last-child) { border-right: none; } } @media (max-width: 480px) { .container { padding: 20px 15px; border-radius: 18px; } .section-title { font-size: 1.4rem; } .keywords-cloud { gap: 12px; } .keyword-item { padding: 10px 18px; font-size: 1rem; } .stat-item { flex: 0 0 100%; } }