/* ========== 广告区域 ========== */
.ad-section {
    margin: 8px 0 16px;
}

.ad-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: linear-gradient(135deg, #fff8e7 0%, #fff3d6 100%);
    border-radius: 16px;
    border: 1px solid #ffe4b5;
}

.ad-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff9500 0%, #ffaa33 100%);
    border-radius: 14px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(255, 149, 0, 0.3);
}

    .ad-icon i {
        font-size: 24px;
        color: white;
    }

.ad-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.ad-title {
    font-size: 15px;
    font-weight: 600;
    color: #8b4513;
}

.ad-desc {
    font-size: 12px;
    color: #a0522d;
}

.ad-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    background: linear-gradient(135deg, #ff9500 0%, #ffaa33 100%);
    border: none;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    white-space: nowrap;
}

    .ad-btn:active {
        transform: scale(0.95);
        box-shadow: 0 4px 12px rgba(255, 149, 0, 0.4);
    }