*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#f5f7fa;color:#333;min-height:100vh}.container{max-width:750px;margin:0 auto;padding:0 16px}.card{background:#fff;border-radius:12px;padding:20px;margin-bottom:16px;box-shadow:0 2px 8px #0000000d}.btn{display:inline-block;padding:12px 24px;background:linear-gradient(135deg,#003366,#0055a5);color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer;transition:all .3s}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0033664d}.btn-block{display:block;width:100%}.input{width:100%;padding:14px 16px;border:1px solid #e0e0e0;border-radius:8px;font-size:16px;transition:border-color .3s}.input:focus{outline:none;border-color:#036}.header{background:linear-gradient(135deg,#003366,#0055a5);color:#fff;padding:16px;text-align:center;position:sticky;top:0;z-index:100}.header h1{font-size:18px;font-weight:500}.nav-bar{display:flex;justify-content:space-around;background:#fff;padding:10px 0;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 8px #0000000d;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:#999;font-size:12px;padding:5px 15px}.nav-item.active{color:#036}.nav-item svg{width:24px;height:24px;margin-bottom:4px}.page-content{padding-bottom:70px;padding-top:16px}.section-title{font-size:18px;font-weight:600;margin-bottom:12px;color:#333}.tag{display:inline-block;padding:4px 8px;background:#e8f4fd;color:#036;border-radius:4px;font-size:12px;margin-right:6px}.tag.red{background:#ffe8e8;color:#d32f2f}.tag.black{background:#333;color:#fff}.building-card{display:flex;padding:16px;background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 2px 8px #0000000d}.building-info{flex:1}.building-name{font-size:16px;font-weight:600;margin-bottom:8px}.building-price{color:#d32f2f;font-size:18px;font-weight:600}.building-price span{font-size:12px;color:#999;font-weight:400}.result-box{background:linear-gradient(135deg,#003366,#0055a5);color:#fff;border-radius:16px;padding:24px;text-align:center;margin-bottom:20px}.result-amount{font-size:48px;font-weight:700}.result-label{font-size:14px;opacity:.8;margin-top:8px}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:#333}.banner{width:100%;height:180px;border-radius:12px;background:linear-gradient(135deg,#003366,#0055a5);display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;margin-bottom:20px}.quick-entry{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}.quick-item{display:flex;flex-direction:column;align-items:center;padding:16px 8px;background:#fff;border-radius:12px;text-decoration:none;color:#333}.quick-item svg{width:32px;height:32px;color:#036;margin-bottom:8px}.quick-item span{font-size:12px}.discount-card{background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:#fff;border-radius:12px;padding:20px;text-align:center;margin-bottom:20px}.discount-rate{font-size:48px;font-weight:700}.discount-label{font-size:14px;opacity:.9}