/* 全局重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", Arial, sans-serif; background-color: #f4f4f4; color: #333; line-height: 1.6; }
a { text-decoration: none; color: #333; }
ul { list-style: none; }

/* 布局工具类 */
.container { width: 90%; max-width: 1000px; margin: 0 auto; }
.section { padding: 60px 0; background: #fff; min-height: 500px; } /* 增加最小高度防止太短 */

/* 头部 */
header { background: #2c3e50; color: #fff; padding: 20px 0; }
header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: bold; }
nav a { color: #fff; margin-left: 20px; font-weight: 500; }
nav a:hover { color: #3498db; }

/* 英雄区 */
.hero { background: linear-gradient(135deg, #3498db, #2c3e50); color: #fff; padding: 80px 0; text-align: center; }
.hero h1 { font-size: 36px; margin-bottom: 20px; }
.btn { background: #e74c3c; color: #fff; padding: 10px 25px; border-radius: 5px; font-weight: bold; border: none; cursor: pointer; display: inline-block; }
.btn:hover { background: #c0392b; }

/* 业务网格 */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 40px; }
.card { background: #f9f9f9; padding: 30px; border-radius: 8px; border: 1px solid #eee; text-align: left; }
.card h3 { margin-bottom: 15px; color: #2c3e50; }

/* 价格表 */
.pricing-section { padding: 60px 0; text-align: center; }
.subtitle { margin-bottom: 40px; color: #666; }
.pricing-grid { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; }
.price-card { background: #fff; padding: 40px; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); width: 300px; position: relative; border: 1px solid #eee; }
.price-card.popular { border: 2px solid #3498db; transform: scale(1.05); }
.badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); background: #3498db; color: #fff; padding: 5px 15px; border-radius: 20px; font-size: 12px; }
.price { font-size: 32px; color: #e74c3c; font-weight: bold; margin: 20px 0; }
.price span { font-size: 16px; color: #666; }
.price-card ul { text-align: left; margin-bottom: 30px; }
.price-card li { margin-bottom: 10px; border-bottom: 1px solid #f4f4f4; padding-bottom: 5px; }
.btn-outline { background: transparent; border: 2px solid #2c3e50; color: #2c3e50; padding: 10px 25px; border-radius: 5px; cursor: pointer; width: 100%; font-size: 16px; }
.btn-outline:hover { background: #2c3e50; color: #fff; }

/* 底部 */
footer { background: #2c3e50; color: #ccc; padding: 30px 0; text-align: center; font-size: 14px; margin-top: auto; }
footer a { color: #ccc; }
footer a:hover { color: #fff; }
.footer-links { margin-top: 10px; }