#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: none; /* 初始隐藏 */
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.5s ease-out;
}

.loading-content {
    text-align: center;
    color: white;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid #00b4d8;
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 18px;
    margin-top: 10px;
    color: #aaa;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 按钮样式 */
.trigger-section {
    padding: 40px;
    text-align: center;
    background: #f5f7fa;
    min-height: 100vh;
}

.trigger-btn {
    padding: 12px 30px;
    font-size: 16px;
    background: linear-gradient(45deg, #00b4d8, #0077b6);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
}

.trigger-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
}

.trigger-btn:active {
    transform: translateY(0);
}

.trigger-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 内容区域样式 */
.main-content {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}