*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:#f5f5f5;color:#333;line-height:1.6}.container{max-width:750px;margin:0 auto;min-height:100vh;background:#f5f5f5}.page{padding:20px 20px 80px}.navbar{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;justify-content:space-around;padding:10px 0;box-shadow:0 -2px 10px #0000001a;z-index:100;max-width:750px;margin:0 auto}.nav-item{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:#999;font-size:12px}.nav-item.active{color:#06c}.nav-item.active .nav-icon{transform:scale(1.1)}.nav-item .nav-icon{font-size:22px;margin-bottom:2px}.btn-primary{background:linear-gradient(135deg,#06c,#08f);color:#fff;border:none;border-radius:22px;padding:12px 30px;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;width:100%}.btn-primary:active{opacity:.8}.btn-primary:disabled{background:#ccc;cursor:not-allowed}.input-group{margin-bottom:16px}.input-label{display:block;font-size:14px;color:#666;margin-bottom:8px}.input-field{width:100%;padding:12px 16px;border:1px solid #ddd;border-radius:8px;font-size:16px;outline:none;transition:border-color .3s}.input-field:focus{border-color:#06c}.card{background:#fff;border-radius:12px;padding:20px;margin-bottom:16px;box-shadow:0 2px 8px #00000014}.card-title{font-size:18px;font-weight:700;margin-bottom:16px;color:#333}.loading{display:flex;justify-content:center;align-items:center;padding:40px;color:#999}.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000bf;color:#fff;padding:16px 32px;border-radius:8px;z-index:9999}