/* @budding: 通用组件 (按钮/表单/列表) */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--secondary-color); font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px; border: 2px solid #e0e0e0; border-radius: 10px;
    background-color: #fff; transition: border-color 0.3s; font-family: var(--font-family); font-size: 14px;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-color); }
.form-group.radio-group { display: flex; gap: 20px; align-items: center; }
.form-group.radio-group label { margin-bottom: 0; }

.btn {
    width: 100%; padding: 15px; border-radius: 10px; border: none;
    font-size: 16px; font-weight: bold; cursor: pointer; transition: all 0.3s ease;
    display: flex; align-items: center; justify-content: center; gap: 8px; text-align: center;
}
.btn-primary { background-color: var(--primary-color); color: var(--white-color); }
.btn-primary:hover { background-color: var(--secondary-color); box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2); }
label.btn-primary { color: var(--white-color) !important; }
.btn-small { padding: 8px 16px; font-size: 14px; width: auto; }
.btn-secondary { background-color: var(--accent-color); color: var(--white-color); margin-bottom: 15px; }
.btn-secondary:hover { background-color: #64b5f6; box-shadow: 0 4px 15px rgba(144, 202, 249, 0.5); }
.btn-neutral { background-color: #bdbdbd; color: var(--white-color); }
.btn-neutral:hover { background-color: #9e9e9e; }
.btn-danger { background-color: #ef5350; color: white; }

.toast { position: absolute; bottom: 80px; left: 50%; transform: translateX(-50%); background-color: rgba(0, 0, 0, 0.7); color: white; padding: 10px 20px; border-radius: 15px; font-size: 14px; opacity: 0; visibility: hidden; transition: opacity 0.5s, visibility 0.5s; z-index: 1000; }
.toast.show { opacity: 1; visibility: visible; }
.load-more-btn { background-color: #e0e0e0; color: #757575; border: none; padding: 8px 16px; margin: 10px auto; border-radius: 15px; cursor: pointer; display: block; font-size: 13px; font-weight: 500; }
.load-more-btn:hover { background-color: #d1d1d1; }

.list-container { list-style: none; margin: 0; padding: 0; }
.list-item { display: flex; align-items: center; padding: 10px 20px; cursor: pointer; border-bottom: 1px solid #f0f0f0; transition: background-color 0.2s ease; position: relative; }
.list-item:hover { background-color: #f5f5f5; }