/* =========================================
   1. 提示框 (Alert Box)
   ========================================= */
.alert-box {
    display: flex;
    align-items: center;
    background: rgba(33, 150, 243, 0.1); /* 藍色底 */
    border-left: 5px solid #2196f3;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.alert-icon {
    font-size: 2rem;
    color: #2196f3;
    margin-right: 20px;
    flex-shrink: 0;
}

.alert-content h4 {
    margin: 0 0 5px 0;
    color: #64b5f6;
    font-size: 1.1rem;
}

.alert-content p {
    margin: 0;
    color: #ddd;
    font-size: 1rem;
    line-height: 1.5;
}

/* =========================================
   2. 步驟卡片 (Step Cards)
   ========================================= */
.tutorial-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 25px;
    display: flex;
    gap: 20px;
    transition: transform 0.2s, border-color 0.2s;
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
    border-color: var(--primary-gold, #fbb750);
}

/* 數字徽章 */
.step-badge {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #fbb750, #d4af37);
    color: #000;
    font-weight: 800;
    font-size: 1.4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(251, 183, 80, 0.4);
    font-family: monospace;
}

.step-content {
    flex-grow: 1;
}

.step-content h3 {
    margin: 0 0 10px 0;
    color: #fff;
    font-size: 1.2rem;
    font-weight: bold;
}

.step-content p {
    color: #ccc;
    margin-bottom: 10px;
    line-height: 1.6;
}

/* 檔案名稱標籤 */
.file-tag {
    background: #333;
    border: 1px solid #555;
    padding: 2px 8px;
    border-radius: 4px;
    color: #fbb750;
    font-family: monospace;
    font-weight: bold;
}

/* 註解文字 */
.note {
    font-size: 0.9rem;
    color: #888;
    background: rgba(0,0,0,0.2);
    padding: 8px;
    border-radius: 4px;
    display: inline-block;
}

.text-red { color: #ff5252; }
.text-gold { color: #ffd700; }

/* =========================================
   3. 圖片樣式 (RWD)
   ========================================= */
.img-wrap {
    margin-top: 15px;
    background: rgba(0,0,0,0.2);
    padding: 10px;
    border-radius: 8px;
    text-align: center;
}

.shadow-img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
}

/* =========================================
   4. 底部提示
   ========================================= */
.divider {
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 30px 0;
}

.tips-box {
    background: rgba(255, 193, 7, 0.05); /* 金色淡背景 */
    border: 1px solid rgba(255, 193, 7, 0.2);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.tips-box h4 {
    color: #fbb750;
    margin: 0 0 10px 0;
    font-size: 1.1rem;
}

.tips-box p {
    color: #ddd;
    margin: 0;
}

/* =========================================
   5. 手機版微調
   ========================================= */
@media (max-width: 768px) {
    .step-card {
        flex-direction: column; /* 數字變到上方 */
        gap: 10px;
        padding: 20px;
    }

    .step-badge {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}